/* ================= 联系品牌页 / 坐标定位风格 ================= */
.page-contact {
  --contact-dark: #262626;
  --contact-gold-line: rgba(201, 162, 39, 0.45);
  --contact-grid: rgba(216, 208, 192, 0.55);
  position: relative;
  background-color: var(--paper);
  background-image:
    linear-gradient(90deg, transparent calc(100% - 1px), var(--contact-grid) calc(100% - 1px)),
    linear-gradient(0deg, transparent calc(100% - 1px), var(--contact-grid) calc(100% - 1px));
  background-size: 40px 40px;
  overflow-x: clip;
  padding-bottom: 3rem;
}

/* 面包屑：作为坐标图例的顶部标记 */
.page-contact .breadcrumb {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--gray);
}

.page-contact .breadcrumb-link {
  color: var(--kiwi);
  text-decoration: none;
}

.page-contact .breadcrumb-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .breadcrumb-sep {
  margin: 0 0.5rem;
  color: var(--gold);
}

.page-contact .breadcrumb-current {
  color: var(--ink);
  font-weight: 700;
}

/* ================= Hero 区域 ================= */
.page-contact .contact-hero {
  position: relative;
  padding: 2.75rem 1.25rem 0;
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 220px;
  height: 220px;
  background: linear-gradient(135deg, transparent 49.5%, rgba(15, 110, 122, 0.1) 50%, transparent 50.5%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 96px;
  height: 96px;
  border-right: 2px solid var(--gold);
  border-top: 2px solid var(--gold);
  opacity: 0.55;
  pointer-events: none;
}

.page-contact .contact-hero-grid {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: center;
}

.page-contact .contact-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--kiwi);
  background: var(--white);
  border: 1px solid var(--grid);
  box-shadow: 3px 3px 0 rgba(26, 122, 74, 0.1);
  margin-bottom: 1.25rem;
}

.page-contact .kicker-dot {
  width: 0.5em;
  height: 0.5em;
  background: var(--gold);
  display: inline-block;
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 1.25rem;
  max-width: 32ch;
}

.page-contact .contact-hero-lead {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray);
  max-width: 58ch;
  margin-bottom: 1.5rem;
}

.page-contact .contact-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Hero SVG 视觉 */
.page-contact .contact-hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.5rem;
}

.page-contact .contact-hero-svg {
  width: 100%;
  max-width: 420px;
  height: auto;
}

.page-contact .hero-svg-grid line {
  stroke: rgba(216, 208, 192, 0.8);
  stroke-width: 1;
}

.page-contact .hero-svg-diag {
  stroke: rgba(201, 162, 39, 0.35);
  stroke-width: 1;
  stroke-dasharray: 6 6;
}

.page-contact .hero-svg-diag-alt {
  stroke: rgba(15, 110, 122, 0.25);
  stroke-width: 1;
  stroke-dasharray: 3 6;
}

.page-contact .hero-svg-ring {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.5;
}

.page-contact .hero-svg-ring-inner {
  fill: rgba(26, 122, 74, 0.06);
  stroke: var(--kiwi);
  stroke-width: 1.5;
  stroke-dasharray: 4 3;
}

.page-contact .hero-svg-core {
  fill: var(--desert);
}

.page-contact .hero-svg-tick line {
  stroke: var(--grid);
  stroke-width: 2;
}

.page-contact .hero-svg-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  fill: var(--gold);
}

.page-contact .hero-svg-meta {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  fill: var(--oasis);
}

/* Hero 底部通栏 */
.page-contact .hero-marquee {
  position: relative;
  margin-top: 2.5rem;
  margin-left: -1.25rem;
  margin-right: -1.25rem;
  padding: 0.7rem 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  justify-content: center;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.26em;
  border-top: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  text-transform: uppercase;
}

.page-contact .marquee-sep {
  color: var(--gold);
}

/* ================= 共享 section-head 的页面内调整 ================= */
.page-contact .section-head {
  max-width: 1120px;
  margin: 0 auto 1.75rem;
  padding: 0 1.25rem;
}

/* ================= 01 官方联系渠道 ================= */
.page-contact .contact-channels {
  padding: 3.25rem 1.25rem 3.75rem;
}

.page-contact .contact-channels-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1120px;
  margin: 0 auto;
}

.page-contact .contact-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-contact .contact-channel-card {
  position: relative;
  background: var(--contact-dark);
  color: var(--white);
  padding: 1.75rem 1.5rem;
  border: 1px solid rgba(201, 162, 39, 0.7);
  box-shadow: 8px 8px 0 rgba(201, 162, 39, 0.1);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.page-contact .contact-channel-card::after {
  content: "";
  position: absolute;
  top: -1px;
  right: 28px;
  width: 48px;
  height: 3px;
  background: var(--gold);
}

.page-contact .contact-channel-card:hover {
  transform: translateY(-4px);
  box-shadow: 12px 12px 0 rgba(201, 162, 39, 0.16);
}

.page-contact .channel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(216, 208, 192, 0.2);
}

.page-contact .channel-code {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  white-space: nowrap;
}

.page-contact .channel-label {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: rgba(245, 240, 230, 0.55);
  text-align: right;
}

.page-contact .channel-name {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--gold);
  word-break: break-all;
  margin-bottom: 0.75rem;
}

.page-contact .channel-desc {
  font-family: var(--font-body);
  font-size: 0.8rem;
  line-height: 1.6;
  color: rgba(245, 240, 230, 0.75);
}

.page-contact .contact-locator {
  margin: 0;
  padding: 0.75rem;
  background: var(--white);
  border: 1px solid var(--grid);
  position: relative;
}

.page-contact .contact-locator::before {
  content: "";
  position: absolute;
  left: -8px;
  top: -8px;
  width: 16px;
  height: 16px;
  border-left: 2px solid var(--oasis);
  border-top: 2px solid var(--oasis);
  opacity: 0.7;
}

.page-contact .contact-locator figcaption {
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  padding: 0.65rem 0.25rem 0;
  color: var(--gray);
  text-transform: uppercase;
}

/* ================= 02 渠道使用说明 ================= */
.page-contact .contact-usage {
  padding: 3.25rem 1.25rem;
  background: var(--white);
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
  position: relative;
}

.page-contact .contact-usage::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(var(--kiwi), var(--emerald), var(--gold));
}

.page-contact .contact-usage-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1120px;
  margin: 0 auto;
}

.page-contact .contact-usage-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-contact .usage-item {
  position: relative;
  padding: 1.5rem 1.5rem 1.5rem 3.75rem;
  border: 1px solid var(--grid);
  background: var(--paper);
  transition: border-color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}

.page-contact .usage-item:hover {
  border-color: var(--oasis);
  transform: translateY(-2px);
}

.page-contact .usage-item::before {
  content: "";
  position: absolute;
  left: 1.5rem;
  top: 1.5rem;
  bottom: 1.5rem;
  width: 2px;
  background: linear-gradient(var(--kiwi), var(--emerald));
}

.page-contact .usage-index {
  position: absolute;
  left: 0.75rem;
  top: 1.5rem;
  font-size: 0.7rem;
  color: var(--oasis);
  letter-spacing: 0.06em;
  font-weight: 700;
}

.page-contact .usage-item h3 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.page-contact .usage-item p {
  font-family: var(--font-body);
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--gray);
}

.page-contact .contact-support-flow {
  margin: 0;
  padding: 0.75rem;
  background: var(--paper);
  border: 1px solid var(--grid);
}

.page-contact .contact-support-flow::after {
  content: "";
  display: block;
  clear: both;
}

.page-contact .contact-support-flow figcaption {
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  padding: 0.65rem 0.25rem 0;
  color: var(--gray);
  text-transform: uppercase;
}

/* ================= 03 访问帮助 ================= */
.page-contact .contact-help {
  padding: 3.25rem 1.25rem 1.5rem;
}

.page-contact .contact-help-grid {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-contact .help-card {
  position: relative;
  display: block;
  padding: 1.75rem 1.5rem;
  background: var(--white);
  border: 1px solid var(--grid);
  text-decoration: none;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
  overflow: hidden;
}

.page-contact .help-card::after {
  content: "";
  position: absolute;
  right: -24px;
  bottom: -24px;
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, transparent 48%, rgba(26, 122, 74, 0.08) 48%);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-contact .help-card:hover {
  transform: translateY(-3px);
  border-color: var(--kiwi);
  box-shadow: 0 10px 22px rgba(38, 38, 38, 0.08);
}

.page-contact .help-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--kiwi);
  background: rgba(26, 122, 74, 0.08);
  border: 1px solid rgba(26, 122, 74, 0.2);
  margin-bottom: 1rem;
}

.page-contact .help-card:nth-child(odd) .help-card-icon {
  color: var(--desert);
  background: rgba(201, 111, 45, 0.08);
  border-color: rgba(201, 111, 45, 0.22);
}

.page-contact .help-card:nth-child(4n) .help-card-icon {
  color: var(--oasis);
  background: rgba(15, 110, 122, 0.08);
  border-color: rgba(15, 110, 122, 0.22);
}

.page-contact .help-card h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.page-contact .help-card p {
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--gray);
  margin-bottom: 1rem;
}

.page-contact .help-card-more {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--kiwi);
  text-transform: uppercase;
}

/* ================= 响应式增强 ================= */
@media (min-width: 768px) {
  .page-contact .breadcrumb {
    padding: 1.5rem 1.5rem 0;
  }

  .page-contact .contact-hero {
    padding: 3.25rem 1.5rem 0;
  }

  .page-contact .contact-hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2rem;
  }

  .page-contact .contact-hero-visual {
    order: 2;
  }

  .page-contact .hero-marquee {
    margin-top: 3rem;
    font-size: 0.68rem;
  }

  .page-contact .section-head {
    padding: 0 1.5rem;
  }

  .page-contact .contact-channels,
  .page-contact .contact-usage,
  .page-contact .contact-help {
    padding-right: 1.5rem;
    padding-left: 1.5rem;
  }

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

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

  .page-contact .contact-usage-wrap {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

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

  .page-contact .contact-help-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-channels-wrap {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: stretch;
  }

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

  .page-contact .contact-channel-card:last-child {
    grid-column: auto;
  }

  .page-contact .contact-help-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .help-card:hover {
    box-shadow: 0 14px 28px rgba(38, 38, 38, 0.1);
  }
}

@media (min-width: 1280px) {
  .page-contact .contact-hero-grid {
    column-gap: 4rem;
  }

  .page-contact .contact-channels-wrap {
    gap: 3rem;
  }

  .page-contact .contact-usage-wrap {
    gap: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-channel-card,
  .page-contact .usage-item,
  .page-contact .help-card {
    transition: none;
  }
}