/* ============ 页脚（信息屏） ============ */
.site-footer {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 64px 0 36px;
  border-top: 2px solid rgba(31, 43, 227, 0.46);
  background: #03040a;
  overflow: hidden;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(63, 231, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(137, 88, 255, 0.08) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(circle at 50% 28%, #000 0%, transparent 78%);
}

/* 巨型描边水印 */
.footer-watermark {
  position: absolute;
  left: 0;
  bottom: 4%;
  z-index: 1;
  width: max-content;
  color: transparent;
  -webkit-text-stroke: 1px rgba(63, 231, 255, 0.13);
  font-family: "Saira Condensed", "Noto Sans SC", sans-serif;
  font-style: italic;
  font-weight: 900;
  font-size: clamp(80px, 15vw, 220px);
  line-height: 1;
  white-space: nowrap;
  letter-spacing: 0.04em;
  pointer-events: none;
  user-select: none;
  animation: watermarkDrift 36s linear infinite alternate;
}

@keyframes watermarkDrift {
  from { transform: translateX(2vw); }
  to { transform: translateX(-32vw); }
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(280px, 1.05fr) minmax(300px, 1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand img {
  width: 142px;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 16px rgba(63, 231, 255, 0.28));
  animation: logoBreath 4s ease-in-out infinite;
}

@keyframes logoBreath {
  0%, 100% { filter: drop-shadow(0 0 12px rgba(63, 231, 255, 0.22)); }
  50% { filter: drop-shadow(0 0 26px rgba(63, 231, 255, 0.5)); }
}

.footer-brand h2 {
  font-size: 28px;
}

.footer-brand p {
  margin-top: 12px;
}

.footer-contact h3,
.footer-links h3 {
  display: block;
  margin-bottom: 12px;
  color: var(--white);
  font-size: 18px;
  font-weight: 900;
}

.footer-contact p {
  margin: 8px 0;
}

.footer-contact h3 + p + p + p + h3 {
  margin-top: 22px;
}

.footer-links {
  padding: 28px 0 30px;
}

.footer-notice {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 28px;
  align-items: center;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(63, 231, 255, 0.2);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(63, 231, 255, 0.1), rgba(255, 75, 183, 0.06)),
    rgba(255, 255, 255, 0.035);
}

.footer-notice h3 {
  margin: 0;
  color: var(--lime);
  font-family: "Saira Condensed", "Noto Sans SC", sans-serif;
  font-size: clamp(24px, 3vw, 36px);
  letter-spacing: 0.04em;
}

.footer-notice p {
  margin: 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 22px;
}

.footer-bottom div {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-bottom a {
  color: var(--muted);
  line-height: 1.5;
}

.footer-bottom a:hover {
  color: var(--cyan);
}