/* ==========================================================================
   页脚 · 白底：5 列红色链接 → 徽章带 → 分隔线 → 超大字标 → 法务与合作占位
   ========================================================================== */

.site-footer {
  background: var(--bg);
  color: var(--fg);
  padding: clamp(50px, 9svh, 110px) var(--grid-margin) clamp(30px, 5svh, 60px);
  overflow: clip;
}

/* ---------- 5 列链接 ---------- */
.footer-cols {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 34px);
  align-items: start;
}

.footer-col h3 {
  margin: 0 0 clamp(10px, 1.3svh, 18px);
  font-size: clamp(12px, 1.28vw, 19px);
  font-weight: var(--fw-regular);
  color: var(--c-primary);
  opacity: 0.5;
}

.footer-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(7px, 1vw, 14px);
}

.footer-col a {
  font-size: clamp(12px, 1.28vw, 19px);
  color: var(--c-primary);
  transition: opacity var(--dur-fast) var(--ease-std);
}
.footer-col a:hover { opacity: 0.6; }

/* ---------- 徽章 / 合规标记 / 社交 ---------- */
.footer-bar {
  margin-top: clamp(34px, 7svh, 80px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 3vw, 48px);
  flex-wrap: wrap;
}

.footer-bar__stores { display: flex; gap: clamp(8px, 1vw, 16px); }

.footer-marks {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 26px);
  margin: 0;
  padding: 0;
  list-style: none;
  flex: 1 1 auto;
  justify-content: center;
}
.footer-marks li {
  width: clamp(22px, 2.4vw, 38px);
  aspect-ratio: 1;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.12);
}
.footer-marks li.is-wide { width: clamp(56px, 6.4vw, 100px); aspect-ratio: 3.2; }

.footer-social {
  display: flex;
  gap: clamp(7px, 0.9vw, 14px);
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-social a {
  display: grid;
  place-items: center;
  width: clamp(24px, 2.5vw, 38px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--c-primary);
}
.footer-social i {
  width: 42%;
  aspect-ratio: 1;
  border-radius: 3px;
  background: var(--c-white);
}
.footer-social li:nth-child(1) i { border-radius: 30%; }
.footer-social li:nth-child(2) i { border-radius: 50% 50% 0 0; }
.footer-social li:nth-child(3) i { clip-path: polygon(0 0, 34% 0, 100% 100%, 66% 100%); }

/* ---------- 分隔线 + 语言 / 署名 ---------- */
.footer-line {
  height: 1px;
  margin: clamp(20px, 3.4svh, 40px) 0 clamp(16px, 2.6svh, 32px);
  background: rgba(5, 150, 105, 0.22);
}

.footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-lang {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: clamp(30px, 3vw, 44px);
  padding-inline: clamp(10px, 1.1vw, 18px);
  border: 1px solid rgba(5, 150, 105, 0.35);
  border-radius: 999px;
  background: none;
  color: var(--c-primary);
  font-family: inherit;
  font-size: clamp(11px, 1.15vw, 17px);
  font-weight: var(--fw-medium);
  cursor: pointer;
}
.footer-lang::after {
  content: "";
  width: 0.5em; height: 0.5em;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
}
.footer-lang__globe {
  width: 1.1em; height: 1.1em;
  border: 1.5px solid currentColor;
  border-radius: 50%;
}

.footer-by {
  font-size: clamp(11px, 1.15vw, 17px);
  font-weight: var(--fw-medium);
  color: var(--c-primary);
}

/* ---------- 法务与合作占位 ---------- */
.footer-legal {
  max-width: 100%;
  margin: 0 0 clamp(20px, 3.4svh, 44px);
  font-size: clamp(8px, 0.72vw, 11px);
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.55);
}

.footer-feature {
  display: grid;
  place-items: center;
  gap: 6px;
  min-height: clamp(120px, 18svh, 220px);
  border-radius: var(--r-lg);
  background: var(--c-primary);
  color: var(--c-white);
  text-align: center;
}
.footer-feature__label { font-size: clamp(10px, 0.9vw, 14px); opacity: 0.75; }
.footer-feature__name { font-size: clamp(13px, 1.3vw, 20px); font-weight: var(--fw-medium); }

.footer-partners {
  margin-top: clamp(10px, 1.6svh, 20px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(10px, 1.2vw, 20px);
}

.footer-partner {
  display: grid;
  place-items: center;
  min-height: clamp(110px, 16svh, 200px);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.5);
  font-size: clamp(11px, 1vw, 15px);
}

@media (max-width: 1023px) {
  .footer-cols { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 32px; }
  .footer-marks { display: none; }
}

@media (max-width: 743px) {
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer { padding-bottom: clamp(96px, 14svh, 130px); }
  .wordmark { padding-inline: var(--grid-margin); }
  .footer-bar { justify-content: flex-start; }
  .footer-partners { grid-template-columns: 1fr; }
}

/* ==========================================================================
   巨型字标：页脚之上的独立一段，随滚动从下方滑入
   ========================================================================== */

.wordmark {
  background: var(--bg);
  padding: clamp(40px, 9svh, 110px) var(--grid-margin) clamp(10px, 2svh, 26px);
  overflow: clip;               /* 滑入前它在下方画外，必须裁掉 */
}

.wordmark__inner {
  will-change: transform;
  transform: translate3d(0, 100%, 0);
}

.wordmark__img {
  display: block;
  width: 100%;
  height: auto;
}

@media (prefers-reduced-motion: reduce) {
  .wordmark__inner { transform: none; }
}