.page-contact {
  --contact-cut: 14px;
  position: relative;
  display: block;
  padding-bottom: clamp(56px, 8vw, 96px);
  background:
    radial-gradient(1100px 520px at 86% -8%, rgba(47, 230, 200, 0.10), transparent 62%),
    var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .breadcrumb,
.page-contact .contact-head,
.page-contact .contact-cols,
.page-contact .contact-fix__body,
.page-contact .contact-coop,
.page-contact .contact-more {
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.page-contact .contact-cols,
.page-contact .contact-coop,
.page-contact .contact-more,
.page-contact .contact-fix__body {
  box-sizing: border-box;
  width: 100%;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 24px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-contact .breadcrumb__item {
  color: var(--muted);
  text-decoration: none;
}

.page-contact a.breadcrumb__item:hover,
.page-contact a.breadcrumb__item:focus-visible {
  color: var(--cyan);
}

.page-contact .breadcrumb__sep {
  color: var(--line);
}

/* ---------- 页头 ---------- */
.page-contact .contact-head {
  display: grid;
  gap: 26px;
  padding-top: 26px;
}

.page-contact .contact-head__copy .caption {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-contact .contact-head__title {
  margin: 0 0 16px;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .contact-head__copy .lede {
  margin: 0;
  max-width: 52ch;
  font-size: 17px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .contact-head__media {
  position: relative;
  margin: 0;
  background: var(--panel);
  clip-path: polygon(
    0 18px,
    18px 0,
    100% 0,
    100% calc(100% - 18px),
    calc(100% - 18px) 100%,
    0 100%
  );
}

.page-contact .contact-head__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 620;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.82);
}

.page-contact .contact-head__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    112deg,
    rgba(10, 13, 16, 0.88) 0%,
    rgba(10, 13, 16, 0.24) 54%,
    rgba(47, 230, 200, 0.18) 100%
  );
  pointer-events: none;
}

/* ---------- 斜向分隔带 ---------- */
.page-contact .contact-band {
  margin-block: clamp(32px, 5vw, 56px);
  background:
    linear-gradient(100deg, var(--glass), rgba(47, 230, 200, 0) 68%),
    var(--panel);
  clip-path: polygon(0 0, 100% 10px, 100% 100%, 0 calc(100% - 10px));
  padding-block: 22px;
}

.page-contact .contact-band .slash-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.page-contact .contact-band .slash-band__note {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
}

.page-contact .contact-band .slash-band__value {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cyan);
  white-space: nowrap;
}

/* ---------- 左右分置双栏 ---------- */
.page-contact .contact-cols {
  display: grid;
  gap: 34px;
  padding-top: 8px;
}

.page-contact .contact-cols__side {
  min-width: 0;
}

.page-contact .contact-cols__title {
  margin: 0 0 18px;
  padding-left: 12px;
  position: relative;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--text);
}

.page-contact .contact-cols__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 3px;
  background: linear-gradient(var(--cyan), var(--cyan-dim));
}

/* ---------- 渠道面板 ---------- */
.page-contact .contact-route-grid {
  display: grid;
  gap: 16px;
}

.page-contact .contact-route {
  position: relative;
  padding: 24px 20px 26px;
  background:
    linear-gradient(135deg, rgba(47, 230, 200, 0.10), rgba(47, 230, 200, 0) 46%),
    var(--panel);
  clip-path: polygon(
    0 var(--contact-cut),
    var(--contact-cut) 0,
    100% 0,
    100% calc(100% - var(--contact-cut)),
    calc(100% - var(--contact-cut)) 100%,
    0 100%
  );
}

.page-contact .contact-route::after {
  content: "";
  position: absolute;
  left: 0;
  top: var(--contact-cut);
  bottom: 0;
  width: 2px;
  background: linear-gradient(var(--cyan), rgba(47, 230, 200, 0));
}

.page-contact .contact-route__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-contact .contact-route__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .contact-route__value--text {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0;
  word-break: normal;
}

.page-contact .contact-route__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 适用场景 ---------- */
.page-contact .contact-scenes {
  margin-top: 34px;
}

.page-contact .contact-scenes__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

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

.page-contact .contact-scenes__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 2px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-scenes__idx {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--orange);
  padding-top: 2px;
}

.page-contact .contact-scenes__name {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .contact-scenes__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--muted);
}

/* ---------- 中间斜向断缝 ---------- */
.page-contact .contact-cols__seam {
  display: none;
}

/* ---------- 请求准备清单 ---------- */
.page-contact .contact-prep-panel {
  position: relative;
  padding: 26px 20px 22px;
  background: var(--panel);
  clip-path: polygon(
    0 var(--contact-cut),
    var(--contact-cut) 0,
    100% 0,
    100% calc(100% - var(--contact-cut)),
    calc(100% - var(--contact-cut)) 100%,
    0 100%
  );
}

.page-contact .contact-prep-panel__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .contact-prep-panel__lede {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-prep {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .contact-prep__row {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line);
  cursor: pointer;
}

.page-contact .contact-prep__item:last-child .contact-prep__row {
  border-bottom: 0;
}

.page-contact .contact-prep__tick {
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 1px solid var(--cyan-dim);
  background: rgba(47, 230, 200, 0.06);
  clip-path: polygon(0 4px, 4px 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%);
  transition: background var(--t-fast) linear, border-color var(--t-fast) linear;
}

.page-contact .contact-prep__tick::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--ink);
  clip-path: polygon(14% 48%, 40% 74%, 86% 20%, 100% 34%, 40% 100%, 0 62%);
  opacity: 0;
  transition: opacity var(--t-fast) linear;
}

.page-contact .contact-prep__box:checked + .contact-prep__tick {
  background: var(--orange);
  border-color: var(--orange);
}

.page-contact .contact-prep__box:checked + .contact-prep__tick::after {
  opacity: 1;
}

.page-contact .contact-prep__box:focus-visible + .contact-prep__tick {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .contact-prep__row:hover .contact-prep__tick {
  border-color: var(--cyan);
}

.page-contact .contact-prep__text {
  display: block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .contact-prep__text strong {
  display: block;
  margin-bottom: 3px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

/* ---------- 回复时段 ---------- */
.page-contact .contact-hours {
  position: relative;
  margin-top: 18px;
  padding: 26px 20px 24px;
  background:
    linear-gradient(180deg, rgba(47, 230, 200, 0.12), rgba(47, 230, 200, 0) 55%),
    var(--panel);
  clip-path: polygon(
    0 var(--contact-cut),
    var(--contact-cut) 0,
    100% 0,
    100% calc(100% - var(--contact-cut)),
    calc(100% - var(--contact-cut)) 100%,
    0 100%
  );
}

.page-contact .contact-hours__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .contact-hours__metric {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hours__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-hours__value {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--cyan);
}

.page-contact .contact-hours__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .contact-hours__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--muted);
}

.page-contact .contact-hours__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--cyan-dim);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

/* ---------- 纠错流程 ---------- */
.page-contact .contact-fix {
  position: relative;
  margin-top: clamp(48px, 7vw, 84px);
  overflow: hidden;
  background: var(--panel);
  clip-path: polygon(0 14px, 100% 0, 100% 100%, 0 calc(100% - 14px));
}

.page-contact .contact-fix__media {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
  opacity: 0.3;
}

.page-contact .contact-fix__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.6) brightness(0.7);
}

.page-contact .contact-fix::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(100deg, rgba(10, 13, 16, 0.94) 0%, rgba(10, 13, 16, 0.72) 60%, rgba(10, 13, 16, 0.42) 100%);
  pointer-events: none;
}

.page-contact .contact-fix__body {
  position: relative;
  z-index: 2;
  padding-block: clamp(36px, 5vw, 58px);
}

.page-contact .contact-fix__title {
  margin: 0 0 14px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .contact-fix__lede {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .contact-fix__steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .contact-fix__step {
  position: relative;
  padding-top: 20px;
  min-width: 0;
}

.page-contact .contact-fix__dot {
  position: absolute;
  left: 0;
  top: 0;
  width: 10px;
  height: 10px;
  background: var(--orange);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-contact .contact-fix__step::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 14px;
  bottom: -20px;
  width: 1px;
  background: linear-gradient(rgba(47, 230, 200, 0.5), rgba(47, 230, 200, 0));
}

.page-contact .contact-fix__step:last-child::after {
  display: none;
}

.page-contact .contact-fix__step-name {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-contact .contact-fix__step-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.66;
  color: var(--muted);
}

.page-contact .contact-fix__foot {
  margin: 26px 0 0;
}

/* ---------- 协作与引用 ---------- */
.page-contact .contact-coop {
  padding-top: clamp(48px, 7vw, 80px);
}

.page-contact .contact-coop__title {
  margin: 0 0 24px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .contact-coop__grid {
  display: grid;
  gap: 18px;
}

.page-contact .contact-coop__card {
  position: relative;
  padding: 26px 20px 24px;
  background: var(--panel);
  clip-path: polygon(
    0 var(--contact-cut),
    var(--contact-cut) 0,
    100% 0,
    100% calc(100% - var(--contact-cut)),
    calc(100% - var(--contact-cut)) 100%,
    0 100%
  );
}

.page-contact .contact-coop__card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-contact .contact-coop__card .body-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 相关栏目 ---------- */
.page-contact .contact-more {
  padding-top: clamp(44px, 6vw, 68px);
}

.page-contact .contact-more .caption {
  margin: 0 0 6px;
}

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

.page-contact .contact-more__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 20px;
  padding: 15px 2px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-more__link {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
  padding-bottom: 2px;
  transition: color var(--t-fast) linear, border-color var(--t-fast) linear;
}

.page-contact .contact-more__link:hover,
.page-contact .contact-more__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .contact-more__meta {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-head__title {
    font-size: 38px;
  }

  .page-contact .contact-route-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-route:first-child {
    grid-column: span 2;
  }

  .page-contact .contact-coop__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-fix__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .contact-fix__step {
    padding: 20px 26px 0 0;
  }

  .page-contact .contact-fix__step::after {
    left: 4px;
    top: 14px;
    right: 22px;
    bottom: auto;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, rgba(47, 230, 200, 0.55), rgba(47, 230, 200, 0.12));
  }

  .page-contact .contact-fix__step:last-child::after {
    display: block;
    right: 0;
    background: linear-gradient(90deg, rgba(47, 230, 200, 0.55), rgba(47, 230, 200, 0));
  }
}

/* ---------- 桌面：左右分置 ---------- */
@media (min-width: 1000px) {
  .page-contact .contact-head {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: end;
    gap: clamp(28px, 3vw, 52px);
    padding-top: 32px;
  }

  .page-contact .contact-head__title {
    font-size: 44px;
  }

  .page-contact .contact-cols {
    grid-template-columns: minmax(0, 1.05fr) 44px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-contact .contact-cols__seam {
    display: block;
    position: relative;
    align-self: stretch;
    min-height: 420px;
  }

  .page-contact .contact-cols__seam::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 4%;
    bottom: 4%;
    width: 1px;
    background: linear-gradient(
      180deg,
      rgba(47, 230, 200, 0) 0%,
      var(--cyan-dim) 20%,
      var(--cyan) 50%,
      var(--cyan-dim) 80%,
      rgba(47, 230, 200, 0) 100%
    );
    transform: rotate(4deg);
  }

  .page-contact .contact-cols__seam-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    writing-mode: vertical-rl;
    font-size: 11px;
    letter-spacing: 0.32em;
    color: var(--cyan-dim);
    background: var(--ink);
    padding-block: 10px;
    white-space: nowrap;
  }

  .page-contact .contact-route-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .contact-route:first-child {
    grid-column: auto;
  }

  .page-contact .contact-fix__body {
    padding-inline: calc(var(--pad-x) + 24px);
  }
}

@media (min-width: 1240px) {
  .page-contact .contact-route {
    padding: 26px 24px 28px;
  }

  .page-contact .contact-prep-panel,
  .page-contact .contact-hours,
  .page-contact .contact-coop__card {
    padding-inline: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-prep__tick,
  .page-contact .contact-prep__tick::after,
  .page-contact .contact-more__link {
    transition: none;
  }
}