/* ===== 联系页：明信片式联系方式布局 ===== */

.page-contact {
  --pc-mono: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-contact .container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ---- 面包屑 ---- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.page-contact .breadcrumb a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
  outline: none;
}

.page-contact .breadcrumb__item[aria-current="page"] {
  color: var(--muted);
}

/* ---- 版头区 ---- */
.page-contact .contact-head {
  position: relative;
  padding-top: 2rem;
  padding-bottom: 1rem;
}

.page-contact .contact-head__grid {
  display: grid;
  gap: 1.75rem;
  align-items: end;
}

.page-contact .contact-head__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.02;
  text-transform: uppercase;
  letter-spacing: 0.015em;
  margin: 0.5rem 0 0.3rem;
}

.page-contact .contact-head__sub {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}

.page-contact .contact-head__lead {
  color: var(--muted);
  margin: 0 0 1.25rem;
  max-width: 62ch;
}

.page-contact .contact-head__lead a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(194, 58, 42, 0.4);
  transition: border-color 0.18s ease;
}

.page-contact .contact-head__lead a:hover,
.page-contact .contact-head__lead a:focus-visible {
  border-bottom-color: var(--accent);
  outline: none;
}

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

.page-contact .contact-head__media {
  margin: 0;
}

.page-contact .contact-head__media img {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin-left: auto;
  filter: saturate(0.88) contrast(1.02);
}

/* ---- 客服渠道明信片卡 ---- */
.page-contact .contact-channels {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.page-contact .postcard {
  position: relative;
  border: 2px dashed var(--accent);
  background:
    linear-gradient(135deg, rgba(194, 58, 42, 0.04) 25%, transparent 25%) 0 0 / 12px 12px,
    var(--paper-dark);
  box-shadow: 8px 8px 0 rgba(194, 58, 42, 0.12);
  padding: 2rem 1.25rem 2.25rem;
  max-width: 860px;
  margin-inline: auto;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.page-contact .postcard:hover {
  box-shadow: 10px 10px 0 rgba(194, 58, 42, 0.16);
  transform: translate(-1px, -1px);
}

.page-contact .postcard__body {
  position: relative;
  z-index: 1;
}

.page-contact .postcard__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0.4rem 0 0.6rem;
}

.page-contact .postcard__note {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 58ch;
  margin-bottom: 1.5rem;
}

.page-contact .contact-fields {
  margin: 0;
  display: grid;
  gap: 1.1rem;
}

.page-contact .contact-field {
  display: grid;
  gap: 0.15rem;
}

.page-contact .contact-field__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .contact-field__value {
  font-size: 1.05rem;
  margin: 0;
}

.page-contact .contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--pc-mono);
  font-size: clamp(1rem, 3vw, 1.3rem);
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 0.1rem;
  max-width: 100%;
  overflow-wrap: anywhere;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-contact .contact-email:hover,
.page-contact .contact-email:focus-visible {
  border-bottom-color: var(--accent);
  background: linear-gradient(transparent 62%, rgba(194, 58, 42, 0.1) 62%);
  outline: none;
}

.page-contact .contact-email__icon {
  flex: 0 0 auto;
}

.page-contact .contact-phone {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.1rem;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-contact .contact-phone:hover,
.page-contact .contact-phone:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
  outline: none;
}

.page-contact .postcard__stamp {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  width: 76px;
  height: 86px;
  color: var(--accent);
  display: grid;
  justify-items: center;
  align-content: center;
  text-align: center;
  opacity: 0.88;
  pointer-events: none;
}

.page-contact .postcard__stamp .stamp-svg {
  display: block;
}

.page-contact .postcard__stamp .stamp-text {
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 2px;
  display: block;
}

/* ---- 回复承诺 ---- */
.page-contact .contact-response {
  padding: 1rem 0 2.5rem;
}

.page-contact .contact-response__inner {
  border-left: 4px solid var(--accent);
  padding-left: 1.25rem;
  max-width: 820px;
  margin-inline: auto;
}

.page-contact .response-title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.6vw, 1.8rem);
  line-height: 1.35;
  margin: 0.75rem 0 0.8rem;
  text-transform: none;
}

.page-contact .response-sub {
  color: var(--muted);
  max-width: 62ch;
  margin: 0;
  font-size: 0.95rem;
}

/* ---- 地址信息（深色坐标块） ---- */
.page-contact .contact-address {
  background: var(--deep);
  color: var(--paper);
  padding: 2.5rem 0 3rem;
  margin: 2rem 0 2.5rem;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-address::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(198, 202, 207, 0.1) 1px, transparent 1px),
    linear-gradient(0deg, rgba(198, 202, 207, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: linear-gradient(to right, transparent, black 45%, black);
  mask-image: linear-gradient(to right, transparent, black 45%, black);
  opacity: 0.5;
  pointer-events: none;
}

.page-contact .contact-address__grid {
  display: grid;
  gap: 1.75rem;
  position: relative;
  z-index: 1;
}

.page-contact .address-stamp__badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--deep);
  background: var(--highlight);
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.6rem;
}

.page-contact .address-stamp__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 0.5rem;
}

.page-contact .address-stamp__line {
  display: inline-block;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--paper);
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.5rem;
  margin: 0 0 0.75rem;
}

.page-contact .address-stamp__note {
  color: rgba(244, 237, 227, 0.74);
  font-size: 0.9rem;
  max-width: 52ch;
}

.page-contact .address-stamp__note a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, 0.4);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-contact .address-stamp__note a:hover,
.page-contact .address-stamp__note a:focus-visible {
  border-bottom-color: var(--neon);
  color: #fff;
  outline: none;
}

.page-contact .address-map {
  position: relative;
  margin: 0;
  border: 1px solid rgba(244, 237, 227, 0.22);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.page-contact .address-map:hover {
  border-color: rgba(45, 226, 230, 0.45);
}

.page-contact .address-map::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(45, 226, 230, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(45, 226, 230, 0.16) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.page-contact .address-map:hover::after {
  opacity: 1;
}

.page-contact .address-map img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-contact .address-map__caption {
  position: absolute;
  left: 0.5rem;
  bottom: 0.5rem;
  background: rgba(13, 11, 9, 0.74);
  color: var(--paper);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.5rem;
  z-index: 2;
}

/* ---- 工作范围（索引式签纸） ---- */
.page-contact .contact-scope {
  padding: 1rem 0 2.5rem;
}

.page-contact .scope-head {
  max-width: 860px;
}

.page-contact .scope-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0.4rem 0 0.6rem;
}

.page-contact .scope-lead {
  color: var(--muted);
  margin-bottom: 1.75rem;
  max-width: 62ch;
}

.page-contact .scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  max-width: 860px;
}

.page-contact .scope-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.2rem 0.15rem;
  border-top: 1px solid var(--line);
  transition: padding-left 0.18s ease;
}

.page-contact .scope-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .scope-item:hover {
  padding-left: 0.5rem;
}

.page-contact .scope-item__idx {
  color: var(--accent);
  font-family: var(--pc-mono);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.45;
}

.page-contact .scope-item__body h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 0.35rem;
  transition: color 0.18s ease;
}

.page-contact .scope-item:hover .scope-item__body h3,
.page-contact .scope-item:focus-within .scope-item__body h3 {
  color: var(--accent);
}

.page-contact .scope-item__body p {
  color: var(--muted);
  font-size: 0.93rem;
  margin: 0;
  max-width: 72ch;
}

/* ---- 可访问的帮助页面（目录索引） ---- */
.page-contact .contact-help {
  padding: 1rem 0 3rem;
}

.page-contact .contact-help__inner {
  border-top: 3px double var(--line);
  padding-top: 2rem;
  max-width: 920px;
  margin-inline: auto;
}

.page-contact .help-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0.4rem 0 0.5rem;
}

.page-contact .help-lead {
  color: var(--muted);
  margin: 0 0 1.5rem;
  max-width: 62ch;
}

.page-contact .help-link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .help-link-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .help-link-item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .help-link {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.75rem;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 0.25rem;
  text-decoration: none;
  color: inherit;
  transition: padding-left 0.18s ease, background-color 0.18s ease;
}

.page-contact .help-link:hover,
.page-contact .help-link:focus-visible {
  padding-left: 0.75rem;
  background: var(--paper-dark);
  outline: none;
}

.page-contact .help-link__name {
  font-family: var(--font-display);
  font-size: 0.98rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--ink);
  transition: color 0.18s ease;
}

.page-contact .help-link:hover .help-link__name,
.page-contact .help-link:focus-visible .help-link__name {
  color: var(--accent);
}

.page-contact .help-link__desc {
  color: var(--muted);
  font-size: 0.85rem;
}

/* ---- 桌面端布局（≥ 768px） ---- */
@media (min-width: 768px) {
  .page-contact .contact-head {
    padding-top: 2.5rem;
    padding-bottom: 2rem;
  }

  .page-contact .contact-head__grid {
    grid-template-columns: 1fr 320px;
    gap: 2.5rem;
  }

  .page-contact .contact-head__media img {
    width: 320px;
    height: 420px;
    object-fit: cover;
  }

  .page-contact .postcard {
    padding: 2.75rem 2.5rem;
  }

  .page-contact .contact-fields {
    max-width: 500px;
  }

  .page-contact .contact-response__inner {
    border-left-width: 4px;
    padding-left: 2rem;
  }

  .page-contact .contact-address {
    padding: 3rem 0 3.5rem;
  }

  .page-contact .contact-address__grid {
    grid-template-columns: 1fr 400px;
    gap: 2.5rem;
    align-items: center;
  }

  .page-contact .address-stamp__line {
    font-size: 1.3rem;
  }

  .page-contact .scope-list {
    max-width: 860px;
  }

  .page-contact .scope-item {
    grid-template-columns: 56px 1fr;
    gap: 0.5rem 1.25rem;
  }
}

/* ---- 宽屏微调（≥ 1024px） ---- */
@media (min-width: 1024px) {
  .page-contact .contact-head {
    padding-top: 3.5rem;
  }

  .page-contact .contact-head__copy {
    max-width: 680px;
  }

  .page-contact .contact-head__lead {
    max-width: 64ch;
  }
}