/* ===== 联系入口页 | page-contact ===== */
.page-contact {
  --contact-aside-w: 360px;
  background: var(--color-bg);
  color: var(--color-text);
}

.page-contact .btn-block {
  display: block;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
}

.page-contact .btn-sm {
  padding: 8px 16px;
  font-size: 14px;
  line-height: 1.4;
}

/* ===== Hero ===== */
.page-contact .contact-hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(30, 90, 168, 0.08), transparent 42%),
    var(--color-white);
  border-bottom: 1px solid var(--color-border-soft);
  padding: 40px 0 30px;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-red) 0 15%, var(--color-gold) 15% 34%, var(--color-blue) 34% 62%, var(--color-ink) 62% 100%);
  opacity: 0.85;
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: 24px;
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .contact-kicker {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  text-transform: uppercase;
}

.page-contact .hero-heading h1 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.page-contact .text-red {
  color: var(--color-red);
}

.page-contact .hero-lead {
  margin: 0;
  max-width: 62ch;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text);
}

/* ===== 布局 ===== */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 72px;
}

.page-contact .contact-aside {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-contact .aside-photo {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  box-shadow: var(--shadow-card);
}

.page-contact .aside-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  object-fit: cover;
}

.page-contact .aside-card {
  padding: 28px;
  border: 1px solid var(--color-blue-border);
  border-radius: var(--radius);
}

.page-contact .aside-card h2 {
  margin: 0 0 16px;
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--color-ink);
}

.page-contact .aside-list {
  display: grid;
  gap: 12px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-contact .aside-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
}

.page-contact .aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 8px;
  height: 8px;
  background: var(--color-blue);
  transform: rotate(45deg);
}

.page-contact .aside-actions {
  display: grid;
  gap: 10px;
}

.page-contact .contact-content {
  display: grid;
  gap: 64px;
  min-width: 0;
}

/* ===== 联系渠道 ===== */
.page-contact .contact-channels .channel-figure {
  position: relative;
  margin: 0 0 32px;
  overflow: hidden;
  border-radius: var(--radius);
}

.page-contact .channel-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
}

.page-contact .channel-figure .figure-caption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(13, 43, 78, 0.72);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-contact .contact-channels h2,
.page-contact .feedback-types h2,
.page-contact .feedback-prepare h2,
.page-contact .service-promise h2 {
  margin: 0 0 12px;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 900;
  color: var(--color-ink);
}

.page-contact .channels-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.page-contact .channel-card {
  position: relative;
  padding: 20px;
  border: 1px solid var(--color-border-soft);
  border-left: 4px solid var(--color-blue);
  border-radius: var(--radius);
  background: var(--color-white);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.page-contact .channel-code {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 13px;
  color: var(--color-gold);
}

.page-contact .channel-card h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-ink);
}

.page-contact .channel-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  word-break: break-all;
  color: var(--color-blue);
  text-decoration: none;
}

.page-contact a.channel-value:hover,
.page-contact a.channel-value:focus {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .channel-scope {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--color-text);
}

.page-contact .channel-action {
  margin-top: 12px;
}

/* ===== 反馈问题类型 ===== */
.page-contact .feedback-types .section-heading {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 14px;
}

.page-contact .feedback-types > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
}

.page-contact .problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 20px;
}

.page-contact .problem-card {
  display: block;
  position: relative;
  padding: 22px 22px 20px;
  overflow: hidden;
  border: 1px solid var(--color-blue-border);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(30, 90, 168, 0.06), rgba(255, 255, 255, 0.92) 52%);
  color: var(--color-text);
  text-decoration: none;
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.page-contact .problem-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-red), var(--color-gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.page-contact .problem-card:hover::before,
.page-contact .problem-card:focus::before {
  transform: scaleX(1);
}

.page-contact .problem-card:hover,
.page-contact .problem-card:focus {
  background: var(--color-white);
  border-color: rgba(30, 90, 168, 0.35);
  transform: translateY(-2px);
}

.page-contact .problem-index {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: 14px;
  border-radius: 50% 50% 50% 2px;
  background: var(--color-blue);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-weight: 700;
  transform: rotate(-8deg);
}

.page-contact .problem-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-ink);
}

.page-contact .problem-card p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.6;
}

.page-contact .problem-link {
  font-size: 13px;
  color: var(--color-blue);
}

/* ===== 反馈信息准备 ===== */
.page-contact .feedback-prepare .prepare-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 32px 24px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(13, 43, 78, 0.96), rgba(30, 90, 168, 0.88));
  color: var(--color-white);
}

.page-contact .prepare-info .mono-index,
.page-contact .prepare-mail .mono-index,
.page-contact .feedback-prepare .mono-index,
.page-contact .service-promise .promise-head .mono-index {
  color: var(--color-gold);
}

.page-contact .prepare-info h2,
.page-contact .prepare-info p {
  color: var(--color-white);
}

.page-contact .prepare-info h2 {
  margin-bottom: 10px;
}

.page-contact .prepare-info p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.84);
}

.page-contact .prepare-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .prepare-list li {
  position: relative;
  padding: 6px 0 6px 26px;
  font-size: 14px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.92);
}

.page-contact .prepare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 12px;
  border: 2px solid var(--color-gold);
  border-radius: 2px;
}

.page-contact .prepare-mail {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .mail-chip {
  display: grid;
  gap: 12px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
}

.page-contact .mail-chip .mono-index {
  font-size: 12px;
}

.page-contact .mail-chip code {
  font-family: var(--font-mono);
  font-size: 16px;
  word-break: break-all;
  color: var(--color-white);
  user-select: all;
}

.page-contact .mail-chip .btn {
  justify-self: start;
}

.page-contact .prepare-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.75);
}

/* ===== 服务承诺 ===== */
.page-contact .promise-head {
  margin-bottom: 20px;
}

.page-contact .promise-head .mono-index {
  display: block;
  margin-bottom: 8px;
  color: var(--color-blue);
}

.page-contact .promise-head h2 {
  margin-bottom: 0;
}

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

.page-contact .promise-card {
  display: grid;
  gap: 6px;
  padding: 24px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
}

.page-contact .promise-num {
  font-family: var(--font-mono);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-blue);
}

.page-contact .promise-card:nth-child(2) .promise-num {
  color: var(--color-gold);
}

.page-contact .promise-card:nth-child(3) .promise-num {
  color: var(--color-red);
}

.page-contact .promise-card h3 {
  margin: 8px 0 0;
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-ink);
}

.page-contact .promise-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}

.page-contact .promise-footer {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border-soft);
}

.page-contact .promise-footer p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .promise-footer a {
  color: var(--color-blue);
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-contact .channels-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .problem-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .promise-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .prepare-panel {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    padding: 40px 36px;
  }

  .page-contact .feedback-types .section-heading {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-contact .hero-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: end;
  }

  .page-contact .contact-layout {
    grid-template-columns: var(--contact-aside-w) 1fr;
    gap: 60px;
  }

  .page-contact .contact-aside {
    position: sticky;
    top: 24px;
    align-self: start;
  }
}