/* ===== 联系与反馈页 page-contact 专属样式 ===== */
.page-contact {
  --ct-node-bg: rgba(248, 246, 255, 0.07);
  --ct-node-border: rgba(248, 246, 255, 0.22);
  --ct-track-bg: rgba(248, 246, 255, 0.1);
  --ct-ink-muted: #5A6270;
  font-family: var(--font-sans);
  color: var(--text-dark);
  background: var(--bg-light);
  overflow-x: hidden;
}

.page-contact .section-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--done-gray);
  margin: 0 0 10px;
}

/* ============ 1. 反馈入口 HERO ============ */

.contact-hero {
  position: relative;
  background: var(--bg-purple);
  color: var(--text-light);
  padding: 64px 16px 88px;
  overflow: hidden;
}

.contact-hero .container {
  position: relative;
  z-index: 2;
}

.contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.contact-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.22;
}

.contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(23, 10, 36, 0.95) 10%, rgba(23, 10, 36, 0.76) 48%, rgba(42, 13, 24, 0.52));
}

.contact-hero::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -90px;
  width: 340px;
  height: 340px;
  background: var(--accent-magenta);
  opacity: 0.26;
  filter: blur(90px);
  border-radius: 999px;
  z-index: 1;
  pointer-events: none;
}

.contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-orange) 40%, var(--accent-magenta) 72%, var(--tag-purple));
  z-index: 3;
}

.contact-hero .section-kicker {
  color: var(--accent-cyan);
}

.contact-hero__title {
  font-size: 30px;
  line-height: 1.2;
  font-weight: 800;
  margin: 14px 0 12px;
  letter-spacing: -0.02em;
}

.contact-hero__lead {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(248, 246, 255, 0.78);
  max-width: 680px;
  margin: 0;
}

.contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
}

.contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}

.contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 22px 22px;
  background: var(--card-bg);
  color: var(--text-dark);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: transform 0.15s ease, filter 0.15s ease;
}

.contact-card--cyan {
  background: var(--accent-cyan);
}

.contact-card--orange {
  background: var(--accent-orange);
}

.contact-card--magenta {
  background: var(--accent-magenta);
  color: var(--text-light);
}

@media (hover: hover) {
  .contact-card:hover {
    transform: translateY(-5px);
    filter: brightness(1.06) saturate(1.05);
  }
}

.contact-card:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(16, 16, 32, 0.14);
  color: currentColor;
  margin-bottom: 6px;
}

.contact-card__icon svg {
  display: block;
}

.contact-card__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.72;
}

.contact-card__value {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.3;
}

.contact-card--cyan .contact-card__value,
.contact-card--orange .contact-card__value {
  word-break: break-all;
}

.contact-card__foot {
  font-size: 13px;
  line-height: 1.5;
  opacity: 0.78;
  margin-top: 4px;
}

/* ============ 2. 反馈前的小提示 ============ */

.contact-tips {
  background: var(--bg-light);
  padding: 68px 16px 64px;
  position: relative;
}

.contact-tips::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-magenta));
  opacity: 0.5;
}

.contact-tips__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.contact-tips__head h2 {
  font-size: 26px;
  line-height: 1.25;
  font-weight: 800;
  margin: 0;
}

.contact-tips__lead {
  margin: 0;
  font-size: 14px;
  color: var(--ct-ink-muted);
  max-width: 420px;
}

.contact-tips__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.tip-card {
  --tip-accent: var(--accent-cyan);
  position: relative;
  background: var(--card-bg);
  border-radius: 14px 14px 4px 14px;
  padding: 26px 20px 20px;
  box-shadow: 0 12px 30px rgba(16, 16, 32, 0.06);
  overflow: hidden;
}

.tip-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 4px;
  background: var(--tip-accent);
  border-radius: 0 0 6px 0;
}

.tip-card--orange { --tip-accent: var(--accent-orange); }
.tip-card--magenta { --tip-accent: var(--accent-magenta); }
.tip-card--purple { --tip-accent: var(--tag-purple); }

.tip-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--tip-accent);
  line-height: 1;
  margin-bottom: 18px;
}

.tip-card h3 {
  font-size: 16px;
  font-weight: 800;
  margin: 0 0 8px;
}

.tip-card p {
  font-size: 13px;
  line-height: 1.6;
  color: #566276;
  margin: 0;
}

/* ============ 3. 处理时效条 ============ */

.contact-et {
  position: relative;
  background: var(--bg-crimson);
  color: var(--text-light);
  padding: 68px 16px 76px;
  overflow: hidden;
}

.contact-et::before {
  content: "";
  position: absolute;
  top: -80px;
  left: -70px;
  width: 260px;
  height: 260px;
  background: var(--accent-orange);
  opacity: 0.16;
  filter: blur(80px);
  border-radius: 999px;
  pointer-events: none;
}

.contact-et__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 26px;
  align-items: stretch;
}

.contact-et .section-kicker {
  color: var(--accent-orange);
}

.contact-et__visual {
  flex-shrink: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(248, 246, 255, 0.14);
  background: rgba(248, 246, 255, 0.06);
}

.contact-et__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 280px;
}

.contact-et__content h2 {
  font-size: 26px;
  line-height: 1.25;
  font-weight: 800;
  margin: 0 0 10px;
}

.contact-et__content > p {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(248, 246, 255, 0.76);
  margin: 0 0 24px;
  max-width: 560px;
}

.contact-et__bar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 560px;
}

.contact-et__node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  white-space: nowrap;
  color: var(--text-light);
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--ct-node-border);
  background: var(--ct-node-bg);
}

.contact-et__node svg {
  display: block;
  flex-shrink: 0;
}

.contact-et__track {
  position: relative;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ct-track-bg);
  border-radius: 999px;
  overflow: hidden;
}

.contact-et__track::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 66%;
  background: linear-gradient(90deg, var(--accent-magenta), var(--accent-orange));
  border-radius: 999px;
}

.contact-et__track span {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-light);
  text-shadow: 0 1px 6px rgba(16, 16, 32, 0.4);
}

/* ============ 4. 其他页面 ============ */

.contact-pages {
  background: var(--bg-light);
  padding: 72px 16px 88px;
  position: relative;
}

.contact-pages__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.contact-pages__head h2 {
  font-size: 26px;
  line-height: 1.25;
  font-weight: 800;
  margin: 0;
}

.contact-pages__desc {
  margin: 0;
  font-size: 14px;
  color: var(--ct-ink-muted);
  max-width: 440px;
}

.contact-pages__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 28px;
}

.contact-page-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 22px;
  border-radius: 14px 14px 4px 14px;
  color: var(--text-dark);
  font-weight: 800;
  font-size: 16px;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(16, 16, 32, 0.1);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.contact-page-btn--orange { background: var(--accent-orange); }
.contact-page-btn--cyan { background: var(--accent-cyan); }
.contact-page-btn--magenta { background: var(--accent-magenta); color: var(--text-light); }
.contact-page-btn--purple { background: var(--tag-purple); color: var(--text-light); }

.contact-page-btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

@media (hover: hover) {
  .contact-page-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(16, 16, 32, 0.16);
  }

  .contact-page-btn:hover .contact-page-btn__arrow {
    transform: translateX(5px);
  }
}

.contact-page-btn__arrow {
  transition: transform 0.15s ease;
  font-size: 20px;
  line-height: 1;
}

/* ============ 响应式增强 ============ */

@media (min-width: 640px) {
  .contact-tips__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-pages__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 720px) {
  .contact-tips__head,
  .contact-pages__head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .contact-et__bar {
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }

  .contact-et__track {
    flex: 1;
    min-width: 180px;
  }
}

@media (min-width: 768px) {
  .contact-hero {
    padding: 72px 24px 104px;
  }

  .contact-hero__title {
    font-size: 42px;
  }

  .contact-hero__lead {
    font-size: 15px;
  }

  .contact-hero__meta {
    margin-top: 22px;
  }

  .contact-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 40px;
  }
}

@media (min-width: 900px) {
  .contact-et__inner {
    flex-direction: row;
    align-items: center;
    gap: 40px;
  }
}

@media (min-width: 1000px) {
  .contact-pages__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
}

@media (min-width: 1100px) {
  .contact-tips__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .tip-card--shift {
    transform: translateY(16px);
  }
}