.page-contact {
  --contact-mail: var(--mint);
  --contact-phone: var(--amber);
  --contact-addr: var(--blue);
  padding-bottom: clamp(56px, 8vw, 104px);
  color: var(--star);
}

.page-contact a {
  color: inherit;
  text-decoration: none;
}

/* 面包屑 */
.page-contact .contact-crumb {
  padding-top: clamp(20px, 3vw, 32px);
}

/* 首屏 */
.page-contact .contact-hero {
  padding-top: clamp(20px, 3vw, 34px);
}

.page-contact .hero-head {
  max-width: 62ch;
}

.page-contact .hero-coord {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--haze);
  margin: 0 0 14px;
}

.page-contact h1 {
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  line-height: 1.18;
  letter-spacing: -0.015em;
  font-weight: 800;
  margin: 0 0 18px;
}

.page-contact .hero-lead {
  font-size: clamp(0.98rem, 1.4vw, 1.08rem);
  line-height: 1.85;
  color: var(--haze);
  margin: 0;
}

/* 渠道分派条 */
.page-contact .dispatch {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: clamp(30px, 4.6vw, 52px);
}

.page-contact .dispatch__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .dispatch__item {
  position: relative;
  padding: clamp(20px, 2.4vw, 26px);
  border: 1px solid var(--grid);
  background: var(--glass);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .dispatch__item:hover,
.page-contact .dispatch__item:focus-within {
  border-color: var(--blue);
}

.page-contact .dispatch__item--mail {
  border-left: 3px solid var(--contact-mail);
}

.page-contact .dispatch__item--phone {
  border-left: 3px solid var(--contact-phone);
}

.page-contact .dispatch__item--addr {
  border-left: 3px solid var(--contact-addr);
}

.page-contact .dispatch__title {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  font-weight: 700;
  margin: 0;
}

.page-contact .dispatch__text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--haze);
  flex: 1;
}

.page-contact .dispatch__action {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  color: var(--star);
  padding: 9px 12px;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  align-self: flex-start;
  word-break: break-all;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .dispatch__action:hover,
.page-contact .dispatch__action:focus-visible {
  border-color: var(--contact-mail);
  color: var(--contact-mail);
  background: rgba(47, 232, 176, 0.07);
}

.page-contact .dispatch__item--phone .dispatch__action:hover,
.page-contact .dispatch__item--phone .dispatch__action:focus-visible {
  border-color: var(--contact-phone);
  color: var(--contact-phone);
  background: rgba(255, 194, 74, 0.08);
}

.page-contact .dispatch__item--addr .dispatch__action:hover {
  border-color: var(--contact-addr);
  color: var(--contact-addr);
  background: rgba(59, 107, 255, 0.09);
}

.page-contact .dispatch__action--static {
  font-family: var(--font-sans);
  cursor: default;
}

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

/* 通用区块标题 */
.page-contact .section-title {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-bottom: 1px solid var(--grid);
  padding-bottom: 14px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .section-title h2 {
  font-size: clamp(1.3rem, 2.1vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}

/* 邮箱区块 */
.page-contact .contact-mail {
  margin-top: clamp(54px, 8vw, 100px);
}

.page-contact .mail-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-contact .mail-prose p {
  margin: 0 0 16px;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--haze);
}

.page-contact .mail-prose a {
  color: var(--mint);
  border-bottom: 1px solid rgba(47, 232, 176, 0.4);
  padding-bottom: 1px;
  transition: border-color 0.25s var(--ease);
}

.page-contact .mail-prose a:hover {
  border-color: var(--mint);
}

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

.page-contact .mail-steps__item {
  position: relative;
  padding: 16px 18px 16px 60px;
  border: 1px solid var(--grid);
  background: var(--night);
  border-radius: var(--radius);
  transition: border-color 0.25s var(--ease);
}

.page-contact .mail-steps__item:hover {
  border-color: var(--mint);
}

.page-contact .mail-steps__num {
  position: absolute;
  left: 18px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 0.04em;
}

.page-contact .mail-steps__title {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
}

.page-contact .mail-steps__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--haze);
}

/* 准备清单 */
.page-contact .contact-prep {
  margin-top: clamp(54px, 8vw, 100px);
}

.page-contact .prep-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 40px);
  align-items: start;
}

.page-contact .prep-figure {
  margin: 0;
}

.page-contact .prep-intro {
  margin: 0 0 20px;
  font-size: 0.96rem;
  line-height: 1.82;
  color: var(--haze);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .check-list__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  text-align: left;
  background: var(--glass);
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--star);
  font-family: inherit;
  font-size: 0.92rem;
  line-height: 1.7;
  cursor: pointer;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-contact .check-list__item:hover {
  border-color: var(--blue);
}

.page-contact .check-list__item[data-done] {
  border-color: var(--mint);
  background: rgba(47, 232, 176, 0.08);
}

.page-contact .check-list__box {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  margin-top: 4px;
  border: 1px solid var(--haze);
  border-radius: 1px;
  position: relative;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-contact .check-list__item[data-done] .check-list__box {
  border-color: var(--mint);
  background: var(--mint);
}

.page-contact .check-list__item[data-done] .check-list__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 4px;
  height: 8px;
  border-right: 2px solid var(--deep);
  border-bottom: 2px solid var(--deep);
  transform: rotate(42deg);
}

.page-contact .prep-list__label {
  flex: 1;
}

.page-contact .prep-tip {
  margin: 0;
  padding: 16px 18px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 138, 61, 0.07);
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--haze);
  border-radius: var(--radius);
}

.page-contact .prep-tip a {
  color: var(--star);
  border-bottom: 1px solid var(--grid);
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-contact .prep-tip a:hover {
  color: var(--mint);
  border-color: var(--mint);
}

/* 答复节奏时间线 */
.page-contact .contact-reply {
  margin-top: clamp(54px, 8vw, 100px);
}

.page-contact .timeline {
  list-style: none;
  margin: 0 0 clamp(28px, 4vw, 44px);
  padding: 0 0 0 26px;
  border-left: 1px solid var(--grid);
  display: grid;
  gap: 22px;
  counter-reset: tl;
}

.page-contact .timeline__node {
  position: relative;
}

.page-contact .timeline__dot {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--deep);
  border: 2px solid var(--blue);
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-contact .timeline__node:hover .timeline__dot {
  border-color: var(--mint);
  background: var(--mint);
  box-shadow: 0 0 0 5px rgba(47, 232, 176, 0.14);
}

.page-contact .timeline__title {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
}

.page-contact .timeline__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--haze);
}

.page-contact .reply-foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--grid);
  background: var(--night);
  border-radius: var(--radius);
}

.page-contact .reply-foot__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .reply-foot__key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-contact .reply-foot__val {
  font-family: var(--font-mono);
  font-size: 0.96rem;
  color: var(--star);
  word-break: break-all;
  border-bottom: 1px solid transparent;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease);
  align-self: flex-start;
}

.page-contact .reply-foot__val:hover,
.page-contact .reply-foot__val:focus-visible {
  color: var(--mint);
  border-color: var(--mint);
}

.page-contact .reply-foot__val--static {
  font-family: var(--font-sans);
  cursor: default;
}

.page-contact .reply-foot__val--static:hover {
  color: var(--star);
  border-color: transparent;
}

.page-contact .reply-foot__note {
  grid-column: 1 / -1;
  margin: 8px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--grid);
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--haze);
}

.page-contact .reply-foot__note a {
  color: var(--star);
  border-bottom: 1px solid var(--grid);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-contact .reply-foot__note a:hover {
  color: var(--mint);
  border-color: var(--mint);
}

/* 焦点可见性 */
.page-contact a:focus-visible,
.page-contact .check-list__item:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

/* 平板 */
@media (min-width: 720px) {
  .page-contact .dispatch__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .dispatch__item--mail {
    grid-column: span 1;
  }

  .page-contact .reply-foot {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .timeline {
    gap: 26px;
  }
}

/* 桌面：非对称分栏 */
@media (min-width: 1000px) {
  .page-contact .dispatch {
    grid-template-columns: 8fr 4fr;
    align-items: stretch;
  }

  .page-contact .dispatch__list {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto auto;
  }

  .page-contact .dispatch__item--mail {
    grid-column: 1 / -1;
  }

  .page-contact .dispatch__figure {
    height: 100%;
  }

  .page-contact .mail-layout {
    grid-template-columns: 4fr 8fr;
    align-items: start;
  }

  .page-contact .mail-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .page-contact .mail-steps__item {
    padding: 52px 18px 18px;
  }

  .page-contact .mail-steps__num {
    top: 18px;
    left: 18px;
  }

  .page-contact .prep-layout {
    grid-template-columns: 8fr 4fr;
    align-items: start;
  }

  .page-contact .prep-figure {
    order: 2;
    position: sticky;
    top: 24px;
  }

  .page-contact .prep-body {
    order: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .dispatch__item,
  .page-contact .dispatch__action,
  .page-contact .mail-steps__item,
  .page-contact .check-list__item,
  .page-contact .check-list__box,
  .page-contact .timeline__dot,
  .page-contact .reply-foot__val,
  .page-contact .prep-tip a,
  .page-contact .reply-foot__note a {
    transition: none;
  }
}