/* =============================================================================
 * footer.css — 深色页脚
 * ========================================================================== */

.foot {
  background: #0a0a0a; color: rgba(255,255,255,.7); padding: 56px 24px 32px;
  font-size: 14px;
}
.foot__inner { max-width: var(--maxw); margin: 0 auto; }

.foot__top {
  display: grid; grid-template-columns: 280px 1fr; gap: 60px; padding-bottom: 42px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.foot__left { display: flex; flex-direction: column; gap: 14px; }
.foot__dropdown, .foot__history {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; border-radius: var(--r-sm); font-size: 14px; font-weight: 500;
  color: #fff; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12);
  transition: background .2s;
}
.foot__dropdown:hover, .foot__history:hover { background: rgba(255,255,255,.14); }
.foot__dropdown svg { transition: transform .2s; }
.foot__dropdown[aria-expanded="true"] svg { transform: rotate(90deg); }

.foot__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.foot__col-title {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px;
  background: none; border: none; padding: 0; width: 100%;
}
.foot__col-title .foot__plus { display: none; }
.foot__links { display: flex; flex-direction: column; gap: 10px; }
.foot__links a { color: rgba(255,255,255,.6); transition: color .2s, padding-left .2s; }
.foot__links a:hover { color: #fff; padding-left: 3px; }

.foot__hotline {
  margin-top: 36px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.1);
  font-size: 14px; color: rgba(255,255,255,.7);
}
.foot__hotline a { margin-left: 6px; font-size: 20px; font-weight: 700; color: #fff; }

.foot__socials { display: flex; gap: 14px; margin-top: 22px; }
.foot__socials a {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255,255,255,.1); color: #fff; font-size: 12px;
  transition: background .2s, transform .2s;
}
.foot__socials a:hover { background: rgba(255,255,255,.2); transform: translateY(-2px); }

.foot__bottom { margin-top: 22px; }
.foot__legal { display: flex; flex-wrap: wrap; gap: 14px 22px; margin-bottom: 12px; }
.foot__legal a { color: rgba(255,255,255,.5); font-size: 12px; transition: color .2s; }
.foot__legal a:hover { color: #fff; }
.foot__copy { color: rgba(255,255,255,.4); font-size: 12px; }