.page-contact {
  --pc-gap: 20px;
  padding-bottom: 88px;
  background:
    radial-gradient(120% 58% at 88% 0%, rgba(46, 230, 197, .07), transparent 62%),
    radial-gradient(90% 48% at 0% 18%, rgba(242, 181, 68, .06), transparent 58%),
    var(--indigo);
}

.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.page-contact .breadcrumb {
  margin: 22px 0 4px;
}

/* ---------- 首屏：非对称两栏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 32px;
  margin-top: 10px;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 56px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--paper);
  margin: 10px 0 0;
  max-width: 15em;
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: clamp(15px, 2.3vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .reach-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.page-contact .reach {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel-2);
  padding: 20px 18px 18px;
}

.page-contact .reach::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  width: 58px;
  height: 2px;
  background: var(--gold);
}

.page-contact .reach--phone::before {
  background: var(--teal);
}

.page-contact .reach__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-contact .reach__value {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(18px, 4.4vw, 28px);
  line-height: 1.28;
  color: var(--paper);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .reach--phone .reach__value {
  color: var(--gold);
}

.page-contact a.reach__value:hover {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 5px;
}

.page-contact .reach__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .contact-media {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .contact-media--square {
  aspect-ratio: 1 / 1;
}

.page-contact .contact-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .route {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .route__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  background: var(--panel-2);
  padding: 13px 15px;
}

.page-contact .route__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal);
  letter-spacing: .08em;
}

.page-contact .route__text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--paper);
}

/* ---------- 编号章节 ---------- */
.page-contact .sec {
  margin-top: 58px;
}

.page-contact .sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-contact .sec-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4vw, 30px);
  line-height: 1;
  color: var(--gold);
  letter-spacing: .04em;
}

.page-contact .sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.6vw, 32px);
  line-height: 1.32;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .sec__body {
  margin-top: 20px;
}

.page-contact .sec__body > p {
  margin: 0 0 14px;
  max-width: 46em;
  font-size: clamp(14.5px, 2.2vw, 16.5px);
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .sec__body > p:last-child {
  margin-bottom: 0;
}

/* ---------- 写信要点 ---------- */
.page-contact .tips {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .tips li {
  display: grid;
  gap: 5px;
  background: var(--panel-2);
  padding: 15px 17px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .tips__k {
  color: var(--paper);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .02em;
}

/* ---------- 反馈类型与流程 ---------- */
.page-contact .fb-layout {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

.page-contact .fb-grid {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .fb {
  border: 1px solid var(--line);
  background: var(--panel-2);
}

.page-contact .fb[open] {
  border-color: rgba(242, 181, 68, .48);
  background:
    linear-gradient(180deg, rgba(242, 181, 68, .07), transparent 58%),
    var(--panel);
}

.page-contact .fb__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 17px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .fb__sum::-webkit-details-marker {
  display: none;
}

.page-contact .fb__sum::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--gold);
}

.page-contact .fb[open] .fb__sum::after {
  content: "–";
  color: var(--teal);
}

.page-contact .fb__body {
  padding: 0 17px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .fb__body p {
  margin: 0;
}

.page-contact .fb__body ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.page-contact .fb__body li {
  margin-bottom: 8px;
}

.page-contact .fb__body li:last-child {
  margin-bottom: 0;
}

.page-contact .fb__k {
  color: var(--teal);
  font-weight: 600;
}

.page-contact .fb-side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .flow__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  background: var(--panel-2);
  padding: 12px 15px;
}

.page-contact .flow__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
}

.page-contact .flow__text {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 地址 ---------- */
.page-contact .addr {
  margin-top: 22px;
  border-left: 2px solid var(--teal);
  padding: 4px 0 4px 20px;
}

.page-contact .addr__text {
  margin: 0;
  font-size: clamp(17px, 3.4vw, 24px);
  line-height: 1.65;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-contact .addr__hint {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 备案与地区 ---------- */
.page-contact .facts {
  margin: 24px 0 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .facts__row {
  display: grid;
  gap: 6px;
  background: var(--panel-2);
  padding: 14px 17px;
}

.page-contact .facts__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .facts__v {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .facts__v.mono {
  color: var(--gold);
}

/* ---------- 尾部指引 ---------- */
.page-contact .next {
  margin-top: 68px;
  border: 1px solid var(--line);
  background: var(--ink);
  padding: 24px 20px 26px;
  display: grid;
  gap: 18px;
}

.page-contact .next__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.4vw, 27px);
  line-height: 1.35;
  color: var(--paper);
  font-weight: 600;
}

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

.page-contact .next__links a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--paper);
  font-size: 14.5px;
  line-height: 1.6;
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-contact .next__links a:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.page-contact .next__links span {
  flex: none;
  font-family: var(--font-mono);
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .tips {
    grid-template-columns: 1fr 1fr;
  }

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

  .page-contact .footer-facts,
  .page-contact .facts__row {
    grid-template-columns: 168px 1fr;
    align-items: baseline;
    gap: 18px;
  }

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

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 52px;
    align-items: start;
    margin-top: 18px;
  }

  .page-contact .contact-hero__side {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

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

  .page-contact .sec {
    margin-top: 76px;
  }

  .page-contact .sec__head {
    gap: 20px;
    padding-top: 20px;
  }

  .page-contact .fb-layout {
    grid-template-columns: minmax(0, 1fr) 306px;
    gap: 34px;
    align-items: start;
  }

  .page-contact .next {
    padding: 30px 32px 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .next__links a {
    transition: none;
  }
}