.page-contact {
  --cut: 26px;
  background: var(--paper);
  color: var(--ink);
}

.page-contact .breadcrumb {
  padding-block: 1.1rem .4rem;
  font-size: .82rem;
}

/* 首屏联络板 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
  padding-block: clamp(2.4rem, 7vw, 4.6rem) clamp(2.2rem, 6vw, 3.6rem);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 6px;
  background: linear-gradient(var(--red), var(--gold));
  z-index: 2;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(21, 21, 21, .94) 0%, rgba(21, 21, 21, .52) 58%, rgba(21, 21, 21, .92) 100%);
}

.page-contact .contact-hero__art {
  position: absolute;
  inset: 0;
  opacity: .3;
  pointer-events: none;
}

.page-contact .contact-hero__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 3;
}

.page-contact .contact-hero .annotation {
  color: var(--gold-light);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 8vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  margin-block: .55rem .9rem;
  max-width: 15ch;
}

.page-contact .contact-hero__lead {
  max-width: 48ch;
  color: rgba(255, 255, 255, .84);
  font-size: clamp(.98rem, 2.2vw, 1.1rem);
  line-height: 1.75;
  margin: 0;
}

/* 联系方式总览 */
.page-contact .board {
  padding-block: clamp(2rem, 5vw, 3.4rem) clamp(2.4rem, 6vw, 4rem);
}

.page-contact .board__head {
  margin-block-end: 1.6rem;
}

.page-contact .board__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.2;
  margin: 0 0 .4rem;
}

.page-contact .board__head p {
  margin: 0;
  color: var(--muted-ink);
  max-width: 42ch;
}

.page-contact .board__grid {
  display: grid;
  gap: 1.5rem;
  min-width: 0;
}

.page-contact .board__mail {
  position: relative;
  padding: clamp(1.4rem, 4.5vw, 2.4rem);
  background: linear-gradient(152deg, var(--red) 0%, var(--red-deep) 100%);
  color: var(--white);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-contact .board__eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin: 0 0 .35rem;
}

.page-contact .board__big-mail {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 4.6vw, 1.85rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--white);
  text-decoration: none;
  overflow-wrap: anywhere;
  margin-block: .3rem 1rem;
}

.page-contact .board__big-mail:hover,
.page-contact .board__big-mail:focus-visible {
  text-decoration: underline;
  text-underline-offset: .22em;
}

.page-contact .board__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-block-end: 1rem;
}

.page-contact .board__mail .copy-btn {
  font-size: .8rem;
  padding: .48rem .95rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .6);
  color: var(--white);
  cursor: pointer;
}

.page-contact .board__mail-btn {
  border-color: rgba(255, 255, 255, .6);
  color: var(--white);
}

.page-contact .board__note {
  margin: 0;
  font-size: .86rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, .86);
  border-block-start: 1px solid rgba(255, 255, 255, .25);
  padding-block-start: .9rem;
}

.page-contact .board__side {
  display: grid;
  gap: 1rem;
  align-content: start;
  min-width: 0;
}

.page-contact .board__item {
  border-block-start: 2px solid var(--grey);
  padding-block-start: .7rem;
}

.page-contact .board__item .copy-btn {
  margin-block-start: .5rem;
  font-size: .78rem;
}

.page-contact .board__side .board__eyebrow {
  color: var(--muted-ink);
}

.page-contact .board__tel {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3.4vw, 1.5rem);
  color: var(--ink);
  text-decoration: none;
  letter-spacing: .02em;
}

.page-contact .board__tel:hover,
.page-contact .board__tel:focus-visible {
  color: var(--red);
}

.page-contact .board__text {
  margin: .2rem 0 .35rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.page-contact .board__text--mail,
.page-contact .board__text--mono {
  font-family: var(--font-mono);
  font-size: .9rem;
}

.page-contact .board__text--mail {
  color: var(--ink);
  text-decoration: none;
  border-block-end: 1px solid var(--gold);
}

.page-contact .board__fine {
  margin: 0 0 .35rem;
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--celadon);
}

/* 路径分段 */
.page-contact .route {
  padding-block: 1.4rem 2rem;
}

.page-contact .route__head {
  margin-block-end: 1rem;
}

.page-contact .route__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 3.4vw, 1.7rem);
  margin: 0;
}

.page-contact .route__segments {
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  padding-block: .7rem;
  border-block: 1px solid var(--grey);
  scrollbar-width: thin;
}

.page-contact .route__seg {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .9rem;
  font-size: .84rem;
  color: var(--ink);
  text-decoration: none;
  background: var(--white);
  border: 1px solid var(--grey);
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-contact .route__seg b {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--gold);
}

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

/* 第 01 站 */
.page-contact .second {
  padding-block: clamp(2.4rem, 6vw, 4.2rem);
}

.page-contact .second__grid {
  display: grid;
  gap: 1.8rem;
  min-width: 0;
}

.page-contact .second__copy h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.4vw, 2.3rem);
  line-height: 1.24;
  margin: .4rem 0 1rem;
  max-width: 20ch;
}

.page-contact .second__copy p {
  margin: 0 0 .9rem;
  line-height: 1.75;
  max-width: 52ch;
}

.page-contact .second__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-block-start: 1.3rem;
}

.page-contact .second__aside {
  background: var(--white);
  border-inline-start: 4px solid var(--gold);
  padding: clamp(1.2rem, 3.5vw, 1.8rem);
}

.page-contact .second__aside-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  margin: 0 0 .7rem;
}

.page-contact .second__list {
  margin: 0;
  padding-inline-start: 1.1rem;
  display: grid;
  gap: .5rem;
  font-size: .92rem;
  line-height: 1.6;
}

.page-contact .second__list li::marker {
  color: var(--red);
}

.page-contact .second__aside-foot {
  margin: 1rem 0 0;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--muted-ink);
  border-block-start: 1px solid var(--grey);
  padding-block-start: .75rem;
}

/* 第 02 站 */
.page-contact .scope {
  background: var(--white);
  padding-block: clamp(2.4rem, 6vw, 4.2rem);
  border-block: 1px solid var(--grey);
}

.page-contact .scope__head {
  margin-block-end: 1.8rem;
}

.page-contact .scope__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.4vw, 2.3rem);
  line-height: 1.24;
  margin: .4rem 0 .5rem;
}

.page-contact .scope__head p {
  margin: 0;
  color: var(--muted-ink);
  max-width: 44ch;
}

.page-contact .scope__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.6rem;
  min-width: 0;
}

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

.page-contact .scope__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--gold);
  padding-block-end: .28rem;
  border-block-end: 2px solid var(--gold);
  margin-block-end: .6rem;
}

.page-contact .scope__item h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.12rem;
  margin: 0 0 .45rem;
}

.page-contact .scope__item p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.7;
  color: var(--muted-ink);
  max-width: 40ch;
}

/* 第 03 站 */
.page-contact .export {
  padding-block: clamp(2.4rem, 6vw, 4.2rem);
}

.page-contact .export__grid {
  display: grid;
  gap: 1.8rem;
  min-width: 0;
}

.page-contact .export__copy h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.4vw, 2.3rem);
  line-height: 1.24;
  margin: .4rem 0 1rem;
  max-width: 18ch;
}

.page-contact .export__copy p {
  margin: 0 0 .9rem;
  line-height: 1.75;
  max-width: 50ch;
}

.page-contact .export__figure {
  margin: 0;
  min-width: 0;
}

.page-contact .export__figure .figure__frame {
  background: var(--grey);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  overflow: hidden;
}

.page-contact .export__figure .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .export__figure .figure__caption {
  margin-block-start: .7rem;
  font-size: .8rem;
  line-height: 1.6;
  color: var(--muted);
}

/* 第 04 站 */
.page-contact .pace {
  padding-block: clamp(2.4rem, 6vw, 4rem);
}

.page-contact .pace__head {
  margin-block-end: 1.4rem;
}

.page-contact .pace__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.4vw, 2.3rem);
  line-height: 1.24;
  margin: .4rem 0 0;
}

.page-contact .pace__grid {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.page-contact .pace__panel {
  padding: clamp(1.2rem, 3.6vw, 1.9rem);
  background: var(--white);
  border-block-start: 3px solid var(--gold);
  min-width: 0;
}

.page-contact .pace__panel--dark {
  background: var(--ink);
  color: var(--white);
  border-block-start-color: var(--red);
}

.page-contact .pace__label {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 .7rem;
}

.page-contact .pace__panel p {
  margin: 0;
  line-height: 1.75;
  font-size: .94rem;
}

.page-contact .pace__panel--dark p {
  color: rgba(255, 255, 255, .88);
}

.page-contact .pace__list {
  margin: 0;
  padding-inline-start: 1.1rem;
  display: grid;
  gap: .45rem;
  font-size: .92rem;
  line-height: 1.6;
}

.page-contact .pace__list li::marker {
  color: var(--red);
}

/* 备案与站点信息 */
.page-contact .meta {
  padding-block: clamp(2.2rem, 5vw, 3.4rem) clamp(2.6rem, 6vw, 4rem);
  border-block-start: 2px solid var(--ink);
}

.page-contact .meta__grid {
  display: grid;
  gap: 1.8rem;
  min-width: 0;
}

.page-contact .meta__main h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 4vw, 2rem);
  margin: .4rem 0 .7rem;
}

.page-contact .meta__main p {
  margin: 0 0 1rem;
  line-height: 1.7;
  max-width: 44ch;
}

.page-contact .meta__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.4rem;
}

.page-contact .meta__links a {
  color: var(--ink);
  text-decoration: none;
  border-block-end: 1px solid var(--gold);
  padding-block-end: .15rem;
  font-size: .9rem;
}

.page-contact .meta__links a:hover,
.page-contact .meta__links a:focus-visible {
  color: var(--red);
  border-block-end-color: var(--red);
}

.page-contact .meta__stamp {
  display: grid;
  gap: .8rem;
  justify-items: start;
  align-content: start;
  border-inline-start: 1px solid var(--grey);
  padding-inline-start: clamp(0rem, 2vw, 1.6rem);
}

.page-contact .meta__stamp-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4.2rem;
  height: 4.2rem;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: .16em;
  transform: rotate(-6deg);
}

.page-contact .meta__stamp-text {
  margin: 0;
  font-size: .88rem;
  line-height: 1.65;
  color: var(--muted-ink);
  max-width: 26ch;
}

/* 焦点可见 */
.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-contact .scope__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 2.4rem;
    row-gap: 2rem;
  }

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

  .page-contact .meta__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 2.4rem;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .board__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(1.6rem, 3vw, 2.6rem);
    align-items: start;
  }

  .page-contact .board__side {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem 1.6rem;
  }

  .page-contact .board__item--flat {
    grid-column: 1 / -1;
  }

  .page-contact .second__grid {
    grid-template-columns: minmax(0, 6.5fr) minmax(0, 4.5fr);
    gap: 3rem;
    align-items: start;
  }

  .page-contact .scope__list {
    column-gap: 3.5rem;
  }

  .page-contact .scope__item:nth-child(even) {
    margin-block-start: 2.2rem;
  }

  .page-contact .export__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 3rem;
    align-items: center;
  }

  .page-contact .pace__grid {
    gap: 1.4rem;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero__lead {
    max-width: 44ch;
  }
}