.page-contact {
  overflow-x: clip;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
}

.page-contact .crumbs {
  padding-top: clamp(20px, 4vw, 38px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 48px);
  align-items: center;
  padding-block: clamp(28px, 5vw, 56px) clamp(40px, 7vw, 84px);
}

.page-contact .contact-hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
  min-width: 0;
}

.page-contact .contact-hero__copy .lede {
  max-width: 46ch;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  clip-path: polygon(0 0, 100% 0, 100% 84%, 80% 100%, 0 100%);
  overflow: hidden;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

@media (min-width: 920px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(40px, 6vw, 84px);
  }

  .page-contact .contact-hero__copy {
    max-width: 36ch;
  }
}

/* ---------- 主体双栏 ---------- */
.page-contact .contact-body {
  border-top: 1px solid var(--line);
  padding-block: clamp(48px, 8vw, 96px);
}

.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(40px, 6vw, 60px);
}

@media (min-width: 1000px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(260px, 4fr) minmax(0, 8fr);
    gap: 0;
    align-items: start;
  }

  .page-contact .contact-split__aside {
    padding-right: clamp(32px, 4vw, 56px);
  }

  .page-contact .contact-split__main {
    border-left: 1px solid var(--line);
    padding-left: clamp(32px, 4vw, 56px);
  }

  .page-contact .contact-pin {
    position: sticky;
    top: 88px;
  }
}

/* ---------- 联系路径 ---------- */
.page-contact .contact-pin {
  display: grid;
  gap: 14px;
}

.page-contact .contact-pin .title-m {
  margin-bottom: 4px;
}

.page-contact .contact-paths {
  display: grid;
}

.page-contact .contact-path {
  position: relative;
  padding: 22px 0 24px 22px;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 9px;
  min-width: 0;
}

.page-contact .contact-path:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .contact-path::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 24px;
  width: 2px;
  background: var(--line);
  transition: background var(--t-fast) var(--ease);
}

.page-contact .contact-path:hover::before {
  background: var(--cyan);
}

.page-contact .contact-path__top {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-contact .contact-path__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-contact .contact-path__kind {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .contact-path__value {
  font-family: var(--font-mono);
  font-size: clamp(13.5px, 1.5vw, 15.5px);
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--white);
  text-decoration: none;
  word-break: break-all;
  overflow-wrap: anywhere;
  transition: color var(--t-fast) var(--ease);
}

.page-contact a.contact-path__value:hover {
  color: var(--cyan);
}

.page-contact .contact-path__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray);
}

/* ---------- 右侧内容块 ---------- */
.page-contact .contact-split__main {
  display: grid;
  min-width: 0;
}

.page-contact .contact-block + .contact-block {
  margin-top: clamp(48px, 6vw, 76px);
  padding-top: clamp(40px, 5vw, 56px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-block__head {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}

.page-contact .contact-block__head .title-l {
  max-width: 30ch;
}

.page-contact .prose {
  margin: 0 0 24px;
  max-width: 38em;
}

.page-contact .prose--note {
  margin: 28px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--gray);
}

.page-contact .prose--note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-contact .prose--note a:hover {
  color: var(--white);
}

/* ---------- 检查清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-contact .checklist__box:hover {
  border-color: var(--cyan);
}

.page-contact .checklist__box:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg);
}

.page-contact .checklist__box:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .checklist__label {
  display: grid;
  gap: 6px;
  cursor: pointer;
  min-width: 0;
}

.page-contact .checklist__title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--white);
  transition: color var(--t-fast) var(--ease);
}

.page-contact .checklist__note {
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray);
}

.page-contact .checklist__box:checked ~ .checklist__label .checklist__title {
  color: var(--cyan);
}

/* ---------- 邮件骨架 ---------- */
.page-contact .mail-skel {
  margin-top: 30px;
  border: 1px solid var(--line);
  background: var(--deep-ink);
}

.page-contact .mail-skel__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(43, 227, 200, 0.28);
}

.page-contact .mail-skel__body {
  margin: 0;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.95;
  letter-spacing: 0.01em;
  color: var(--white);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

/* ---------- 邮件截图 ---------- */
.page-contact .contact-figure {
  margin: 30px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 55 / 37;
  object-fit: cover;
}

.page-contact .contact-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 合作三栏 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 4px;
}

.page-contact .coop-card {
  background: var(--ink-2);
  padding: 22px 20px 24px;
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
}

.page-contact .coop-card__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .coop-card h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray);
}

.page-contact .coop-card__subj {
  display: inline-block;
  margin-top: 4px;
  padding: 5px 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  border: 1px solid rgba(43, 227, 200, 0.4);
  background: rgba(43, 227, 200, 0.07);
}

@media (min-width: 720px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 回复时段 ---------- */
.page-contact .reply-metrics {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 30px;
}

.page-contact .reply-stat {
  background: var(--ink-2);
  padding: 22px 20px 24px;
  display: grid;
  align-content: start;
  gap: 8px;
  min-width: 0;
}

.page-contact .reply-stat__value {
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 40px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-contact .reply-stat--accent .reply-stat__value {
  color: var(--orange);
}

.page-contact .reply-stat__label {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--gray);
}

@media (min-width: 620px) {
  .page-contact .reply-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .flow-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .flow-list__item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .flow-list__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  padding-top: 4px;
  white-space: nowrap;
}

.page-contact .flow-list__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--gray);
}

/* ---------- 收尾动作带 ---------- */
.page-contact .contact-outro {
  position: relative;
  margin-top: clamp(40px, 5vw, 60px);
  padding: clamp(24px, 3.5vw, 36px) clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  background: var(--ink-2);
  display: grid;
  gap: 18px;
  overflow: hidden;
}

.page-contact .contact-outro::after {
  content: "";
  position: absolute;
  right: -48px;
  top: -48px;
  width: 148px;
  height: 148px;
  border: 1px solid var(--line);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-contact .contact-outro p {
  margin: 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--white);
}

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-path::before,
  .page-contact .checklist__box,
  .page-contact .checklist__title,
  .page-contact .contact-path__value {
    transition: none;
  }
}