.page-contact {
  --contact-hair: rgba(183, 197, 206, 0.2);
  --contact-hair-strong: rgba(87, 215, 232, 0.34);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-contact .section {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-contact .prose {
  max-width: var(--measure);
  color: var(--mist);
  line-height: 1.75;
}

.page-contact .h2 {
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 10px 0 16px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(26px, 5vw, 56px) clamp(36px, 6vw, 76px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 62%;
  background: linear-gradient(168deg, rgba(14, 75, 85, 0.55), transparent 72%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(38px, 10.5vw, 92px);
  line-height: 0.94;
  letter-spacing: -0.035em;
  font-weight: 900;
  color: var(--white);
}

.page-contact .contact-hero .lede {
  max-width: 54ch;
  color: var(--paper);
  line-height: 1.7;
}

.page-contact .contact-hero__jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .contact-hero__jump a {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--contact-hair);
  color: var(--mist);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .contact-hero__jump a:hover,
.page-contact .contact-hero__jump a:focus-visible {
  color: var(--gold);
  border-color: var(--gold);
}

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

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: polygon(0 8%, 100% 0, 100% 100%, 0 92%);
}

.page-contact .figcap {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-channels__lead {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .channels {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .channel {
  position: relative;
  padding: clamp(18px, 3vw, 30px);
  background: var(--ink-soft);
  border: 1px solid var(--contact-hair);
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 42px;
  background: var(--sky);
}

.page-contact .channel--primary {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--gold);
  border-width: 2px;
}

.page-contact .channel--primary::after {
  background: var(--gold);
  height: 56px;
}

.page-contact .channel__key {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sky);
}

.page-contact .channel--primary .channel__key {
  color: var(--teal);
}

.page-contact .channel__value {
  margin: 10px 0 12px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(17px, 4.2vw, 24px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .channel--primary .channel__value {
  color: var(--ink);
  font-size: clamp(18px, 4.6vw, 28px);
}

.page-contact .channel__value--addr {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(16px, 3.2vw, 20px);
  line-height: 1.5;
  letter-spacing: 0;
}

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

.page-contact .channel--primary .channel__note {
  color: var(--slate);
}

.page-contact .channel--hours {
  grid-column: 1 / -1;
  background: linear-gradient(104deg, var(--teal), var(--ink-raise) 78%);
  border-color: var(--contact-hair-strong);
  display: grid;
  gap: 6px 28px;
  align-items: baseline;
}

.page-contact .channel--hours::after {
  height: 100%;
  background: var(--amber);
}

.page-contact .channel__hours-value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(20px, 4.4vw, 30px);
  color: var(--gold);
  letter-spacing: 0.02em;
}

/* ---------- 咨询前准备 ---------- */
.page-contact .contact-prepare {
  background: linear-gradient(180deg, transparent, rgba(27, 51, 71, 0.55) 40%, transparent);
}

.page-contact .prepare__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}

.page-contact .prepare__intro .note {
  margin-top: 20px;
  max-width: 40ch;
}

.page-contact .prepare__list {
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .prep {
  border-top: 1px solid var(--contact-hair);
}

.page-contact .prep summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--paper);
}

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

.page-contact .prep summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--gold);
}

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

.page-contact .prep summary:focus-visible {
  outline: 2px solid var(--sky);
  outline-offset: 4px;
}

.page-contact .prep__body p {
  margin: 0 0 18px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 反馈分类 ---------- */
.page-contact .topics__head {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: end;
  margin-bottom: clamp(20px, 3vw, 32px);
}

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

.page-contact .topics__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 4%, 100% 100%, 0 96%);
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.page-contact .filter-status {
  margin: 0 0 22px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  font-family: var(--font-mono);
}

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

.page-contact .topic {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  background: var(--ink-soft);
  border: 1px solid var(--contact-hair);
  border-left: 3px solid var(--sky);
}

.page-contact .topic:nth-child(even) {
  border-left-color: var(--amber);
}

.page-contact .topic[hidden] {
  display: none;
}

.page-contact .topic__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-contact .topic .h3 {
  margin: 8px 0 10px;
  color: var(--white);
  letter-spacing: -0.01em;
}

.page-contact .topic__desc {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .topic__meta {
  margin: 0 0 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--contact-hair);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--sky);
}

.page-contact .topic__link {
  margin: 0;
  font-size: 14px;
}

.page-contact .topic__link a,
.page-contact .outro__fine a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 181, 68, 0.45);
}

.page-contact .topic__link a:hover,
.page-contact .topic__link a:focus-visible,
.page-contact .outro__fine a:hover,
.page-contact .outro__fine a:focus-visible {
  border-bottom-color: var(--gold);
}

/* ---------- 位置与备案 ---------- */
.page-contact .contact-place {
  background: var(--slate);
  margin-inline: 0;
}

.page-contact .place__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-contact .place__card {
  position: relative;
  padding: clamp(22px, 3vw, 34px) clamp(20px, 3vw, 32px);
  background: var(--ink);
  border: 1px solid var(--contact-hair-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-contact .place__dl {
  margin: 18px 0 0;
}

.page-contact .place__row {
  display: grid;
  gap: 2px;
  padding: 12px 0;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .place__row dt {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sky);
}

.page-contact .place__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .place__row dd.num {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-contact .place__card .note {
  margin: 18px 0 0;
  font-size: 13px;
}

.page-contact .place__skyline svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .place__skyline .figcap {
  color: var(--mist);
}

/* ---------- 底部收束 ---------- */
.page-contact .contact-outro {
  padding-block: clamp(44px, 7vw, 90px);
}

.page-contact .outro__inner {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  align-items: end;
  padding-top: 24px;
  border-top: 2px solid var(--gold);
}

.page-contact .outro__text .h2 {
  margin-top: 0;
}

.page-contact .outro__fine {
  margin: 14px 0 0;
  font-size: 14px;
  color: var(--mist);
}

.page-contact .outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.85fr);
  }

  .page-contact .prepare__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-contact .topics__head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

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

  .page-contact .place__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .outro__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    justify-content: space-between;
  }

  .page-contact .outro__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1120px) {
  .page-contact .channels {
    grid-template-columns: 1.25fr 1fr;
  }

  .page-contact .place__row {
    grid-template-columns: 118px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

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