.page-contact {
  --pc-gold-line: rgba(201, 162, 74, .45);
  --pc-dark-panel: rgba(11, 31, 26, .62);
  background: var(--vi-ivory-50);
  color: var(--vi-graphite-900);
}

.page-contact .vi-crumbs {
  padding: 14px 0 10px;
  font-size: 13px;
  color: var(--vi-steel-400);
}

.page-contact .vi-crumbs a {
  color: var(--vi-moss-600);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .vi-crumbs a:hover,
.page-contact .vi-crumbs a:focus-visible {
  border-bottom-color: var(--vi-gold-500);
}

/* ---------- 首屏：非对称联系台 ---------- */
.page-contact .pc-desk {
  background:
    radial-gradient(110% 82% at 88% 2%, rgba(22, 163, 154, .18), transparent 62%),
    linear-gradient(155deg, var(--vi-ink-950) 0%, var(--vi-ink-800) 58%, var(--vi-ink-950) 100%);
  color: var(--vi-ivory-50);
  border-top: 3px solid var(--vi-ink-950);
  border-bottom: 3px solid var(--vi-ink-950);
}

.page-contact .pc-desk__grid {
  display: grid;
  gap: clamp(30px, 5vw, 52px);
  padding-top: clamp(30px, 6vw, 62px);
  padding-bottom: clamp(38px, 6vw, 72px);
}

.page-contact .pc-desk__lead,
.page-contact .pc-desk__side,
.page-contact .pc-mail-grid > * {
  min-width: 0;
}

.page-contact .pc-eyebrow {
  margin: 0 0 14px;
  font-family: var(--vi-font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--vi-gold-200);
}

.page-contact .pc-desk h1 {
  margin: 0 0 18px;
  font-family: var(--vi-font-display);
  font-weight: 900;
  font-size: clamp(27px, 5.4vw, 48px);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--vi-paper-0);
  max-width: 17em;
}

.page-contact .pc-lede {
  margin: 0 0 28px;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.85;
  color: rgba(247, 242, 231, .82);
  max-width: 34em;
}

.page-contact .pc-channels {
  display: grid;
  gap: 16px;
}

.page-contact .pc-channel {
  padding: clamp(16px, 2.6vw, 24px);
  background: var(--pc-dark-panel);
  border: 2px solid rgba(201, 162, 74, .4);
  box-shadow: 6px 6px 0 rgba(201, 162, 74, .16);
}

.page-contact .pc-channel--primary {
  border-color: var(--vi-gold-500);
  background: linear-gradient(140deg, rgba(201, 162, 74, .2), rgba(11, 31, 26, .8) 60%);
  box-shadow: 9px 9px 0 rgba(201, 162, 74, .3);
}

.page-contact .pc-channel__label {
  margin: 0 0 10px;
  font-family: var(--vi-font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--vi-cyan-500);
}

.page-contact .pc-channel__value {
  display: block;
  font-family: var(--vi-font-mono);
  font-weight: 600;
  font-size: clamp(18px, 4.1vw, 31px);
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--vi-gold-200);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__value:hover,
.page-contact .pc-channel__value:focus-visible {
  color: var(--vi-paper-0);
  text-decoration: underline;
  text-decoration-color: var(--vi-gold-500);
  text-underline-offset: 6px;
}

.page-contact .pc-channel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-contact .pc-copy {
  appearance: none;
  cursor: pointer;
  font-family: var(--vi-font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  padding: 11px 16px;
  color: var(--vi-ivory-50);
  background: transparent;
  border: 1px solid rgba(232, 217, 168, .5);
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-contact .pc-copy:hover,
.page-contact .pc-copy:focus-visible {
  background: rgba(232, 217, 168, .14);
  border-color: var(--vi-gold-200);
}

.page-contact .pc-copy.is-copied {
  background: var(--vi-cyan-500);
  border-color: var(--vi-cyan-500);
  color: var(--vi-ink-950);
}

.page-contact .pc-copy--dark {
  color: var(--vi-ink-950);
  border-color: rgba(28, 35, 32, .3);
  padding: 8px 14px;
  font-size: 12px;
  white-space: nowrap;
}

.page-contact .pc-copy--dark:hover,
.page-contact .pc-copy--dark:focus-visible {
  background: var(--vi-ivory-100);
  border-color: var(--vi-gold-500);
}

.page-contact .pc-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  list-style: none;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(232, 217, 168, .22);
}

.page-contact .pc-jump a {
  font-size: 13px;
  color: rgba(247, 242, 231, .72);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-gold-line);
  padding-bottom: 2px;
}

.page-contact .pc-jump a:hover,
.page-contact .pc-jump a:focus-visible {
  color: var(--vi-gold-200);
  border-bottom-color: var(--vi-gold-200);
}

/* ---------- 首屏右侧 ---------- */
.page-contact .pc-desk__side {
  display: grid;
  gap: 18px;
}

.page-contact .pc-desk__figure {
  border: 1px solid rgba(232, 217, 168, .32);
  box-shadow: 10px 10px 0 rgba(201, 162, 74, .22);
  overflow: hidden;
  background: var(--vi-ink-800);
}

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

.page-contact .pc-sidecard {
  background: var(--vi-ivory-50);
  color: var(--vi-graphite-900);
  border: 2px solid var(--vi-ink-950);
  padding: 18px 20px;
  box-shadow: 7px 7px 0 rgba(11, 31, 26, .26);
}

.page-contact .pc-sidecard__label {
  margin: 0 0 8px;
  font-family: var(--vi-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--vi-moss-600);
}

.page-contact .pc-sidecard__big {
  margin: 0;
  font-size: clamp(23px, 4vw, 30px);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--vi-ink-950);
}

.page-contact .pc-sidecard__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(28, 35, 32, .82);
}

.page-contact .pc-sidecard__list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.page-contact .pc-sidecard__list li {
  position: relative;
  padding-left: 18px;
}

.page-contact .pc-sidecard__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--vi-gold-500);
  transform: rotate(45deg);
}

/* ---------- 章节标题组 ---------- */
.page-contact .pc-band {
  background: var(--vi-ivory-100);
  border-top: 1px solid rgba(28, 35, 32, .12);
  border-bottom: 1px solid rgba(28, 35, 32, .12);
  padding: clamp(38px, 7vw, 78px) 0;
}

.page-contact .pc-plain {
  padding: clamp(38px, 6vw, 72px) 0;
}

.page-contact .pc-plain--record {
  background: var(--vi-paper-0);
  border-top: 1px solid rgba(28, 35, 32, .1);
  border-bottom: 1px solid rgba(28, 35, 32, .1);
}

.page-contact .pc-head {
  display: grid;
  gap: 10px;
  max-width: 46em;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .pc-num {
  margin: 0;
  font-family: var(--vi-font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--vi-moss-600);
}

.page-contact .pc-head h2 {
  margin: 0;
  font-family: var(--vi-font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 35px);
  line-height: 1.26;
  letter-spacing: -.01em;
  color: var(--vi-ink-950);
}

.page-contact .pc-head__sub {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(28, 35, 32, .72);
}

/* ---------- 邮件指引 ---------- */
.page-contact .pc-mail-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .pc-checklist {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-checklist li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  background: var(--vi-paper-0);
  border: 1px solid rgba(28, 35, 32, .14);
  border-left: 3px solid var(--vi-gold-500);
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .pc-idx {
  font-family: var(--vi-font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--vi-moss-600);
  padding-top: 3px;
}

.page-contact .pc-checklist strong {
  color: var(--vi-ink-950);
  font-weight: 700;
}

.page-contact .pc-mail-extra {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(28, 35, 32, .78);
}

.page-contact .pc-mail-extra a {
  color: var(--vi-moss-600);
  text-decoration: none;
  border-bottom: 1px solid var(--vi-gold-500);
}

.page-contact .pc-mail-extra a:hover,
.page-contact .pc-mail-extra a:focus-visible {
  color: var(--vi-ink-950);
  border-bottom-color: var(--vi-ink-950);
}

.page-contact .pc-mail-figure {
  border: 2px solid var(--vi-ink-950);
  box-shadow: var(--vi-shadow-hard);
  overflow: hidden;
  background: var(--vi-ink-800);
  margin: 0;
}

.page-contact .pc-mail-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .pc-mail-figure figcaption {
  padding: 12px 14px;
  font-family: var(--vi-font-mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: rgba(247, 242, 231, .74);
  background: var(--vi-ink-950);
}

/* ---------- 回复流程 ---------- */
.page-contact .pc-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 52em;
}

.page-contact .pc-flow li {
  position: relative;
  padding: 18px 0 18px 30px;
  border-bottom: 1px solid rgba(28, 35, 32, .12);
}

.page-contact .pc-flow li:last-child {
  border-bottom: none;
}

.page-contact .pc-flow li::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 26px;
  width: 8px;
  height: 8px;
  background: var(--vi-cyan-500);
  border-radius: 50%;
}

.page-contact .pc-flow li::after {
  content: "";
  position: absolute;
  left: 8.5px;
  top: 40px;
  bottom: -1px;
  width: 1px;
  background: rgba(28, 35, 32, .14);
}

.page-contact .pc-flow li:last-child::after {
  display: none;
}

.page-contact .pc-flow__title {
  margin: 0 0 6px;
  font-family: var(--vi-font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  color: var(--vi-ink-950);
}

.page-contact .pc-flow__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(28, 35, 32, .78);
}

.page-contact .pc-flow__text a {
  color: var(--vi-moss-600);
  text-decoration: none;
  border-bottom: 1px solid var(--vi-gold-500);
}

.page-contact .pc-flow__text a:hover,
.page-contact .pc-flow__text a:focus-visible {
  color: var(--vi-ink-950);
  border-bottom-color: var(--vi-ink-950);
}

/* ---------- 备案细线表 ---------- */
.page-contact .pc-ledger {
  margin: 0;
  border-top: 2px solid var(--vi-ink-950);
}

.page-contact .pc-ledger__row {
  display: grid;
  gap: 4px;
  padding: 14px 2px;
  border-bottom: 1px solid rgba(28, 35, 32, .14);
}

.page-contact .pc-ledger dt {
  font-family: var(--vi-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--vi-moss-600);
}

.page-contact .pc-ledger dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--vi-graphite-900);
  overflow-wrap: anywhere;
}

.page-contact .pc-ledger dd.vi-mono {
  font-family: var(--vi-font-mono);
  letter-spacing: .04em;
}

/* ---------- 延伸入口 ---------- */
.page-contact .pc-next {
  display: grid;
  gap: 12px;
}

.page-contact .pc-next__item {
  display: block;
  padding: 16px 18px;
  background: var(--vi-paper-0);
  border: 1px solid rgba(28, 35, 32, .16);
  color: var(--vi-ink-950);
  font-family: var(--vi-font-display);
  font-weight: 700;
  font-size: 17px;
  text-decoration: none;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.page-contact .pc-next__item span {
  display: block;
  margin-top: 6px;
  font-family: var(--vi-font-body);
  font-weight: 400;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(28, 35, 32, .66);
}

.page-contact .pc-next__item:hover,
.page-contact .pc-next__item:focus-visible {
  border-color: var(--vi-gold-500);
  box-shadow: 5px 5px 0 rgba(201, 162, 74, .24);
  transform: translateY(-2px);
}

/* ---------- 桌面端布局 ---------- */
@media (min-width: 700px) {
  .page-contact .pc-ledger__row {
    grid-template-columns: minmax(130px, 190px) minmax(0, 1fr) auto;
    align-items: center;
    gap: 20px;
  }

  .page-contact .pc-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-mail-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .pc-desk__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    align-items: start;
  }

  .page-contact .pc-desk__side {
    padding-top: 10px;
  }

  .page-contact .pc-sidecard--mail {
    margin-left: -18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-next__item,
  .page-contact .pc-copy {
    transition: none;
  }

  .page-contact .pc-next__item:hover,
  .page-contact .pc-next__item:focus-visible {
    transform: none;
  }
}