.page-contact {
  --contact-line: rgba(244, 233, 205, 0.14);
  --contact-deep: #1b263b;
  --contact-night: #0d1b2a;
  --contact-orange: #f77f00;
  --contact-sand: #fcbf49;
  --contact-paper: #f4e9cd;
  --contact-ink: #2b2d42;
  --contact-muted: #a0aab5;
  --contact-red: #e63946;
  position: relative;
  background:
    radial-gradient(circle at 18% 12%, rgba(247, 127, 0, 0.10) 0%, transparent 30%),
    radial-gradient(circle at 88% 68%, rgba(247, 127, 0, 0.06) 0%, transparent 26%),
    linear-gradient(160deg, #0d1b2a 0%, #101d33 38%, #0b1725 100%);
  color: var(--contact-paper);
  overflow: hidden;
  font-family: var(--f-body);
  line-height: 1.7;
}

.page-contact .container {
  width: min(1280px, 100% - 40px);
  margin-inline: auto;
}

/* ===== 首屏联络卡 ===== */
.page-contact .contact-hero {
  padding: clamp(72px, 10vw, 120px) 0 40px;
  position: relative;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: 90px;
  right: -80px;
  width: 220px;
  height: 220px;
  border: 1px dashed rgba(247, 127, 0, 0.25);
  border-radius: 50%;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

.page-contact .contact-hero__eyebrow {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.32em;
  color: var(--contact-orange);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.page-contact .contact-hero__title {
  font-family: var(--f-display);
  font-size: clamp(2.2rem, 6vw, 4.6rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}

.page-contact .contact-hero__title span {
  display: block;
  color: transparent;
  -webkit-text-stroke: 1px rgba(244, 233, 205, 0.72);
  background: linear-gradient(120deg, var(--contact-orange), var(--contact-sand));
  -webkit-background-clip: text;
  background-clip: text;
}

.page-contact .contact-hero__desc {
  max-width: 640px;
  color: rgba(244, 233, 205, 0.82);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 0.95rem;
  padding: 14px 22px;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.page-contact .btn--solid {
  background: var(--contact-orange);
  color: var(--contact-night);
  border-color: var(--contact-orange);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-contact .btn--solid:hover {
  background: var(--contact-sand);
  border-color: var(--contact-sand);
  transform: translateY(-2px);
}

.page-contact .btn--ghost {
  background: transparent;
  color: var(--contact-paper);
  border-color: rgba(244, 233, 205, 0.28);
}

.page-contact .btn--ghost:hover {
  border-color: var(--contact-orange);
  color: var(--contact-orange);
}

.page-contact .contact-hero__visual {
  position: relative;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
  background: var(--contact-deep);
  padding: 10px;
}

.page-contact .contact-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 8;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

/* ===== 面包屑 ===== */
.page-contact .contact-breadcrumb {
  padding: 16px 0 0;
}

.page-contact .breadcrumbs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--contact-muted);
}

.page-contact .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  color: rgba(244, 233, 205, 0.28);
}

.page-contact .breadcrumbs a {
  color: var(--contact-sand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.page-contact .breadcrumbs a:hover {
  border-bottom-color: var(--contact-sand);
}

.page-contact .breadcrumbs li[aria-current="page"] {
  color: var(--contact-paper);
}

/* ===== 章节通用 ===== */
.page-contact .section {
  padding: 96px 0 32px;
}

.page-contact .section--tight {
  padding: 72px 0;
}

.page-contact .section--wide {
  padding: 96px 0;
}

.page-contact .section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 20px;
  align-items: baseline;
  margin-bottom: 44px;
  border-bottom: 1px solid var(--contact-line);
  padding-bottom: 20px;
}

.page-contact .section-head__index {
  font-family: var(--f-mono);
  font-size: 1rem;
  color: var(--contact-orange);
  letter-spacing: 0.12em;
}

.page-contact .section-head__title {
  font-family: var(--f-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
  grid-column: 1 / -1;
}

.page-contact .section-head__desc {
  grid-column: 1 / -1;
  margin: 0;
  color: rgba(244, 233, 205, 0.68);
  font-size: 0.92rem;
}

/* ===== 服务渠道卡片 ===== */
.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  background: var(--contact-deep);
  border: 1px solid var(--contact-line);
  border-left: 3px solid var(--contact-orange);
  border-radius: 4px;
  padding: 28px 24px;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: background 0.25s ease, transform 0.25s ease;
}

.page-contact .channel-card:hover {
  background: rgba(27, 38, 59, 0.92);
  transform: translateY(-2px);
}

.page-contact .channel-card__index {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--f-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(247, 127, 0, 0.5);
  line-height: 1;
}

.page-contact .channel-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(247, 127, 0, 0.12);
  color: var(--contact-orange);
}

.page-contact .channel-card__body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-right: 24px;
}

.page-contact .channel-card__label {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--contact-orange);
  margin: 0;
}

.page-contact .channel-card__value {
  font-family: var(--f-mono);
  font-size: clamp(1.05rem, 2vw, 1.4rem);
  color: var(--contact-paper);
  word-break: break-all;
  margin: 0;
}

.page-contact .channel-card__note {
  font-size: 0.9rem;
  color: rgba(244, 233, 205, 0.58);
  margin: 0;
}

.page-contact .channel-card__mailto {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  color: var(--contact-sand);
  text-decoration: none;
  font-family: var(--f-mono);
  font-size: 0.85rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.page-contact .channel-card__mailto:hover {
  border-bottom-color: var(--contact-sand);
}

.page-contact .channel-card--wide {
  grid-column: 1 / -1;
}

/* ===== 响应承诺 ===== */
.page-contact .contact-response {
  background: var(--contact-paper);
  color: var(--contact-ink);
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), 0 100%);
  padding-bottom: 128px;
  margin-bottom: 0;
}

.page-contact .contact-response::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--contact-orange) 0%, var(--contact-sand) 60%, transparent 100%);
}

.page-contact .contact-response__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.page-contact .contact-response__content {
  padding: 48px 0 16px;
}

.page-contact .contact-response__content .section-head__title {
  color: var(--contact-ink);
  font-family: var(--f-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  margin: 8px 0 16px;
}

.page-contact .contact-response__desc {
  font-size: 0.98rem;
  color: rgba(43, 45, 66, 0.78);
  margin-bottom: 24px;
  max-width: 600px;
}

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

.page-contact .contact-response__list li {
  position: relative;
  padding-left: 28px;
  font-size: 0.92rem;
  color: rgba(43, 45, 66, 0.82);
  border-bottom: 1px solid rgba(43, 45, 66, 0.08);
  padding-bottom: 10px;
}

.page-contact .contact-response__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 10px;
  height: 10px;
  background: var(--contact-orange);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-contact .contact-response__visual {
  padding: 16px;
  background: var(--contact-night);
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

.page-contact .contact-response__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 2px;
}

/* ===== 沟通指南 ===== */
.page-contact .contact-guide {
  padding-top: 96px;
}

.page-contact .contact-guide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 48px;
}

.page-contact .guide-step {
  background: rgba(27, 38, 59, 0.68);
  border: 1px solid var(--contact-line);
  border-radius: 4px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.25s ease;
}

.page-contact .guide-step:hover {
  border-color: rgba(247, 127, 0, 0.6);
}

.page-contact .guide-step__num {
  font-family: var(--f-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(247, 127, 0, 0.9);
  line-height: 1;
}

.page-contact .guide-step__title {
  margin: 0;
  font-family: var(--f-body);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--contact-paper);
}

.page-contact .guide-step__desc {
  margin: 0;
  font-size: 0.92rem;
  color: rgba(244, 233, 205, 0.62);
  line-height: 1.65;
}

.page-contact .contact-guide__faq {
  display: grid;
  gap: 12px;
  max-width: 720px;
}

.page-contact .accordion {
  background: rgba(27, 38, 59, 0.5);
  border: 1px solid var(--contact-line);
  border-radius: 4px;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.page-contact .accordion summary {
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 600;
  color: var(--contact-paper);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.page-contact .accordion summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--f-mono);
  font-size: 1.2rem;
  color: var(--contact-orange);
}

.page-contact .accordion[open] summary::after {
  content: "–";
}

.page-contact .accordion p {
  margin: 0;
  padding: 0 22px 20px;
  color: rgba(244, 233, 205, 0.68);
  font-size: 0.92rem;
}

/* ===== 隐私说明 ===== */
.page-contact .contact-privacy {
  padding-top: 32px;
  padding-bottom: 96px;
}

.page-contact .contact-privacy__panel {
  background: linear-gradient(135deg, rgba(27, 38, 59, 0.9) 0%, rgba(13, 27, 42, 0.96) 100%);
  border: 1px solid var(--contact-line);
  border-left: 3px solid var(--contact-green, #588157);
  border-radius: 4px;
  padding: 36px 30px;
  position: relative;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.page-contact .contact-privacy .section-head__index {
  display: inline-block;
  margin-bottom: 8px;
}

.page-contact .contact-privacy__title {
  margin: 0 0 12px;
  font-family: var(--f-display);
  font-size: 1.7rem;
  font-weight: 600;
}

.page-contact .contact-privacy__desc {
  margin: 0 auto 18px;
  max-width: 640px;
  font-size: 0.94rem;
  color: rgba(244, 233, 205, 0.68);
}

.page-contact .contact-privacy__link {
  display: inline-block;
  color: var(--contact-sand);
  text-decoration: none;
  font-family: var(--f-mono);
  font-size: 0.86rem;
  border-bottom: 1px solid rgba(252, 191, 73, 0.4);
  padding-bottom: 2px;
  transition: border-color 0.2s ease;
}

.page-contact .contact-privacy__link:hover {
  border-bottom-color: var(--contact-sand);
}

/* ===== 媒体查询：移动端优先，桌面端增强 ===== */
@media (max-width: 680px) {
  .page-contact .contact-hero__visual {
    clip-path: none;
  }

  .page-contact .contact-hero__visual img {
    aspect-ratio: 16 / 9;
  }

  .page-contact .channel-card {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 22px 18px;
  }

  .page-contact .channel-card__icon {
    width: 36px;
    height: 36px;
  }

  .page-contact .channel-card__body {
    padding-right: 0;
  }

  .page-contact .channel-card__index {
    font-size: 1.8rem;
  }

  .page-contact .respond-response__inner {
    gap: 20px;
  }
}

@media (min-width: 768px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .page-contact .contact-response__inner {
    grid-template-columns: 7fr 5fr;
    gap: 64px;
  }

  .page-contact .contact-guide__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .page-contact .channel-card--wide {
    grid-column: 1 / -1;
  }

  .page-contact .channel-card--wide .channel-card__value {
    word-break: normal;
  }
}

@media (min-width: 1080px) {
  .page-contact .section {
    padding: 100px 0 40px;
  }

  .page-contact .section--wide {
    padding: 100px 0;
  }

  .page-contact .contact-response {
    padding-bottom: 140px;
  }

  .page-contact .contact-response__inner {
    grid-template-columns: 7fr 5fr;
    gap: 80px;
    max-width: 1120px;
  }
}

/* ===== 减少动态偏好 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-contact .btn {
    transition: none;
  }

  .page-contact .channel-card {
    transition: none;
  }

  .page-contact .accordion {
    transition: none;
  }
}

.page-contact {
  --contact-green: var(--contact-ink);
}