.page-contact {
  --pc-cut: 22px;
  --pc-band: linear-gradient(90deg, var(--gold), var(--celadon-bright) 58%, var(--celadon));
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  display: grid;
  gap: clamp(24px, 3.4vw, 48px);
  padding: clamp(30px, 5vw, 68px) 0 clamp(32px, 5vw, 62px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(44%, 420px);
  height: 5px;
  background: var(--pc-band);
}

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

.page-contact .contact-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(34px, 7.2vw, 58px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 14em;
}

.page-contact .contact-hero .lede {
  max-width: 34ch;
  color: var(--paper);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .contact-hero__media {
  position: relative;
  aspect-ratio: 3 / 2;
  background: var(--ink-800);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%);
}

.page-contact .contact-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.04);
}

.page-contact .contact-hero__media .media__label {
  color: var(--gold-soft);
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
  }
  .page-contact .contact-hero__text { order: 2; }
  .page-contact .contact-hero__media { order: 1; margin-top: clamp(10px, 2vw, 28px); }
}

/* ---------- 联系通道 ---------- */
.page-contact .contact-channels {
  padding: clamp(26px, 4vw, 52px) 0;
}

.page-contact .channel-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

@media (min-width: 940px) {
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 1.34fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-contact .channel-card {
  position: relative;
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  padding: clamp(24px, 3.4vw, 46px) clamp(22px, 3.4vw, 48px) clamp(26px, 3.4vw, 46px) clamp(26px, 3.6vw, 52px);
  background: linear-gradient(158deg, var(--ink-800) 0%, var(--ink-900) 72%);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--pc-band);
  background-size: 100% 100%;
}

.page-contact .channel-item__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-contact .channel-item__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(20px, 4.6vw, 33px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .channel-item__note {
  margin: 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .channel-aside {
  padding-left: clamp(16px, 2.2vw, 30px);
  border-left: 1px solid var(--rule);
}

.page-contact .channel-aside__title {
  margin: 0 0 16px;
  font-size: 20px;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .channel-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .channel-list li {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .channel-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .channel-list .mono-inline {
  display: inline-block;
  min-width: 3.4em;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--celadon-bright);
}

.page-contact .channel-aside__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--rule);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 咨询准备 ---------- */
.page-contact .contact-prep {
  padding: clamp(26px, 4vw, 52px) 0;
}

.page-contact .prep-grid {
  display: grid;
  gap: clamp(22px, 3.2vw, 40px);
}

@media (min-width: 900px) {
  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

.page-contact .prep-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: prep;
}

.page-contact .prep-list li {
  position: relative;
  padding: 18px 0 18px 52px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .prep-list li:last-child {
  border-bottom: 1px solid var(--rule);
}

.page-contact .prep-list li::before {
  counter-increment: prep;
  content: "0" counter(prep);
  position: absolute;
  top: 20px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-contact .prep-list strong {
  display: block;
  margin-bottom: 4px;
  color: var(--paper);
  font-size: 17px;
  font-weight: 800;
}

.page-contact .contact-prep__media {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  background: var(--ink-800);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--celadon);
}

.page-contact .contact-prep__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.86);
}

.page-contact .contact-prep__media .media__caption {
  color: var(--muted);
}

/* ---------- 可展开清单 ---------- */
.page-contact .contact-expand {
  margin-top: clamp(28px, 4vw, 52px);
}

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

.page-contact .contact-expand .expand:last-child {
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-expand .expand__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
}

.page-contact .contact-expand .expand__num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-contact .contact-expand .expand__title {
  flex: 1 1 240px;
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .contact-expand .expand__caret {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--celadon-bright);
}

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

.page-contact .contact-expand .expand__body li {
  position: relative;
  padding: 5px 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .contact-expand .expand__body li::before {
  content: "";
  position: absolute;
  top: 15px;
  left: -16px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--celadon);
}

.page-contact .contact-expand .tag {
  margin-left: 8px;
  vertical-align: middle;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-window {
  padding: clamp(26px, 4vw, 52px) 0;
}

.page-contact .window-band {
  height: 4px;
  margin-bottom: 0;
  background: var(--pc-band);
  clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
}

.page-contact .window-grid {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-top: 0;
}

@media (min-width: 820px) {
  .page-contact .window-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .window-item {
  position: relative;
  padding: 26px 22px 28px;
  background: var(--ink-900);
}

.page-contact .window-item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 22px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
}

.page-contact .window-item:nth-child(2)::before {
  background: var(--celadon-bright);
}

.page-contact .window-item:nth-child(3)::before {
  background: var(--gold-soft);
}

.page-contact .window-item__time {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-contact .window-item__text {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 自助路径 ---------- */
.page-contact .contact-self {
  padding: clamp(26px, 4vw, 52px) 0;
}

.page-contact .self-card {
  display: block;
  text-decoration: none;
  padding: clamp(20px, 2.8vw, 30px);
  background: var(--ink-800);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .self-card:hover,
.page-contact .self-card:focus-visible {
  background: var(--ink-700);
  border-color: var(--gold);
}

.page-contact .self-card__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--celadon-bright);
}

.page-contact .self-card__title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .self-card__text {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .self-card__go {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold-soft);
}

/* ---------- 登记信息 ---------- */
.page-contact .contact-registry {
  padding: clamp(26px, 4vw, 56px) 0 clamp(40px, 6vw, 80px);
}

.page-contact .registry-list {
  margin: 0;
  border-top: 1px solid var(--rule);
}

.page-contact .registry-list > div {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

@media (min-width: 720px) {
  .page-contact .registry-list > div {
    grid-template-columns: 170px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

.page-contact .registry-list dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .registry-list dd {
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .registry-note {
  margin: 22px 0 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .registry-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

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