.page-contact {
  background: var(--ink);
  color: var(--mist);
  overflow-x: hidden;
}

.page-contact .crumbs {
  padding-top: clamp(1rem, 3vw, 1.75rem);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-contact .crumbs a {
  color: var(--gray);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

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

/* ---------- 联络牌 ---------- */
.page-contact .contact-board {
  position: relative;
  padding-top: clamp(1.25rem, 4vw, 2.5rem);
  padding-bottom: clamp(2.5rem, 7vw, 4.5rem);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 70% at 88% 2%, rgba(39, 245, 162, 0.12), transparent 62%),
    linear-gradient(180deg, var(--deeper) 0%, var(--ink) 64%);
}

.page-contact .contact-board__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
  align-items: start;
}

.page-contact .contact-board__title {
  margin: 0.5rem 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 7.8vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--mist);
}

.page-contact .contact-board__lede {
  max-width: 48ch;
  margin: 0;
  color: var(--gray);
  font-size: clamp(1rem, 2.4vw, 1.08rem);
  line-height: 1.78;
}

.page-contact .contact-board__jump {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
  padding: 0.68rem 1.05rem;
  border: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease), background-color 0.22s var(--ease);
}

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

.page-contact .contact-board__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--char);
}

.page-contact .contact-board__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06) brightness(0.9);
}

.page-contact .contact-board__media .media__note {
  display: block;
  padding: 0.6rem 0.85rem;
  border-top: 1px solid var(--line);
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

/* ---------- 三条通道 ---------- */
.page-contact .channels {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .channels__item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.25rem 0.9rem;
  padding: clamp(0.95rem, 2.4vw, 1.35rem) 0;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.25s var(--ease);
}

.page-contact .channels__item:hover,
.page-contact .channels__item:focus-within {
  border-bottom-color: var(--cyan-deep);
}

.page-contact .channels .seat {
  padding-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-contact .channels__label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-contact .channels__value {
  display: block;
  margin-top: 0.32rem;
  font-family: var(--font-display);
  font-size: clamp(1.14rem, 4.4vw, 1.72rem);
  font-weight: 400;
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--mist);
  overflow-wrap: anywhere;
  transition: color 0.25s var(--ease);
}

.page-contact .channels__item:hover .channels__value {
  color: var(--cyan);
}

.page-contact .channels__hint {
  display: block;
  max-width: 46ch;
  margin-top: 0.42rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--gray);
}

.page-contact .channels__copy {
  margin-top: 0.8rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

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

.page-contact .copy-status {
  min-height: 1.2rem;
  margin: 0.7rem 0 0;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 章节标题共用 ---------- */
.page-contact .prep__title,
.page-contact .flow-section__title,
.page-contact .collab__title,
.page-contact .region__title {
  margin: 0.5rem 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.55rem, 5.2vw, 2.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-contact .prep__lede,
.page-contact .flow-section__lede,
.page-contact .collab__lede,
.page-contact .region__lede {
  margin: 0;
  max-width: 56ch;
  color: var(--gray);
  font-size: 0.98rem;
  line-height: 1.78;
}

/* ---------- 准备清单 ---------- */
.page-contact .prep {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background: var(--char);
  border-bottom: 1px solid var(--line);
}

.page-contact .prep__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .prep__figure {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .prep__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.94);
}

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

.page-contact .prep__item {
  padding: clamp(1rem, 2.6vw, 1.4rem);
  background: var(--char);
  transition: background-color 0.25s var(--ease);
}

.page-contact .prep__item:hover {
  background: var(--panel);
}

.page-contact .prep__num {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-contact .prep__name {
  margin: 0.5rem 0 0.42rem;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-contact .prep__item p {
  margin: 0;
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.72;
}

/* ---------- 处理路径 ---------- */
.page-contact .flow-section {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-contact .flow {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .flow__step {
  display: grid;
  gap: 0.42rem;
  padding: clamp(1rem, 2.6vw, 1.5rem) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .flow__time {
  justify-self: start;
  padding: 0.18rem 0.5rem;
  border: 1px solid var(--orange);
  color: var(--orange);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}

.page-contact .flow__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--mist);
}

.page-contact .flow__text {
  margin: 0;
  max-width: 62ch;
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.72;
}

/* ---------- 合作与共建 ---------- */
.page-contact .collab {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background: linear-gradient(180deg, var(--ink) 0%, var(--deeper) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .collab__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-contact .collab__points {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-contact .collab__points li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--gray);
  font-size: 0.94rem;
  line-height: 1.72;
}

.page-contact .collab__points strong {
  color: var(--mist);
  font-weight: 600;
}

.page-contact .collab__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 0.55rem;
  height: 1px;
  background: var(--cyan);
}

.page-contact .collab__panel {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: var(--panel);
}

.page-contact .collab__kicker {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .collab__panel-text {
  margin: 0.75rem 0 0;
  color: var(--mist);
  font-size: 0.94rem;
  line-height: 1.75;
}

.page-contact .collab__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.15rem;
}

/* ---------- 区域与服务 ---------- */
.page-contact .region {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
}

.page-contact .region__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-contact .region__note {
  margin: 0.9rem 0 0;
  max-width: 56ch;
  color: var(--gray);
  font-size: 0.9rem;
  line-height: 1.72;
}

.page-contact .region__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.4rem;
}

.page-contact .region__link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

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

.page-contact .region__facts {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .region__fact {
  display: grid;
  gap: 0.28rem;
  padding: 0.85rem 1rem;
  background: var(--char);
}

.page-contact .region__fact dt {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--gray);
}

.page-contact .region__fact dd {
  margin: 0;
  color: var(--mist);
  font-size: 0.98rem;
  line-height: 1.55;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-board__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-contact .contact-board__media {
    margin-top: 3.25rem;
  }

  .page-contact .prep__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-contact .flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    border: 1px solid var(--line);
    background: var(--line);
  }

  .page-contact .flow__step {
    padding: clamp(1rem, 2vw, 1.45rem);
    border: 0;
    background: var(--ink);
    align-content: start;
  }

  .page-contact .collab__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-contact .region__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }
}

@media (min-width: 1120px) {
  .page-contact .prep__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
  }
}