.page-contact {
  --pc-line: rgba(13, 27, 42, 0.12);
  --pc-line-on-ink: rgba(246, 242, 233, 0.2);
  --pc-panel-shadow: 0 26px 64px -34px rgba(13, 27, 42, 0.5);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--ink-900);
  color: var(--paper);
  padding: clamp(30px, 5vw, 62px) 0 clamp(72px, 10vw, 138px);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 46%;
  background: linear-gradient(180deg, rgba(184, 122, 60, 0.16), rgba(184, 122, 60, 0) 72%);
  clip-path: polygon(0 0, 100% 0, 54% 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 auto;
  width: 64%;
  height: 72%;
  background: linear-gradient(150deg, rgba(42, 69, 96, 0.62), rgba(42, 69, 96, 0) 66%);
  clip-path: polygon(26% 100%, 100% 8%, 100% 100%);
  z-index: 0;
  pointer-events: none;
}

.page-contact .pc-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero .crumbs {
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  margin: 0 0 clamp(20px, 3vw, 34px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-contact .pc-hero .crumbs a {
  color: var(--copper-light);
  text-decoration: none;
}

.page-contact .pc-hero .crumbs a:hover,
.page-contact .pc-hero .crumbs a:focus-visible {
  text-decoration: underline;
}

.page-contact .pc-hero .eyebrow {
  color: var(--copper-light);
  margin: 0 0 16px;
}

.page-contact .pc-hero h1.display {
  color: var(--paper);
  font-size: clamp(27px, 4.4vw, 52px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  max-width: 20ch;
  margin: 0 0 clamp(18px, 2.6vw, 28px);
}

.page-contact .pc-hero .lede {
  color: #c2ccd6;
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.35vw, 17.5px);
  line-height: 1.85;
  max-width: 62ch;
  margin: 0;
}

/* ---------- 两条联系通道 ---------- */
.page-contact .pc-channels {
  position: relative;
  z-index: 2;
  margin-top: -52px;
  padding-top: 0;
}

.page-contact .pc-channels__panel {
  background: var(--white);
  border: 1px solid var(--grid);
  box-shadow: var(--pc-panel-shadow);
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .pc-sep {
  display: block;
  height: 1px;
  background: var(--grid);
  margin: 0 clamp(20px, 4vw, 40px);
}

.page-contact .pc-chan {
  padding: clamp(24px, 3.6vw, 46px) clamp(20px, 4vw, 40px);
  min-width: 0;
}

.page-contact .pc-chan__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.page-contact .pc-chan__no {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--copper);
  border-bottom: 1px solid var(--copper);
  padding-bottom: 2px;
}

.page-contact .pc-chan__title {
  font-family: var(--font-display);
  font-size: clamp(18px, 1.9vw, 22px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink-900);
  margin: 0 0 12px;
}

.page-contact .pc-chan__body {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  margin: 0 0 6px;
  max-width: 46ch;
}

.page-contact .pc-contact-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin: clamp(18px, 2.4vw, 26px) 0 clamp(16px, 2vw, 22px);
  padding: clamp(14px, 1.8vw, 20px) 0;
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-contact .pc-contact-block__label {
  flex-basis: 100%;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-contact .pc-contact-block__value {
  flex: 1 1 220px;
  min-width: 0;
  font-size: clamp(14px, 1.5vw, 17px);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink-900);
  word-break: break-all;
}

.page-contact .pc-copy {
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1;
  padding: 8px 14px;
  border: 1px solid var(--copper);
  border-radius: 0;
  background: transparent;
  color: var(--copper);
  cursor: pointer;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.page-contact .pc-copy:hover {
  background: var(--copper);
  color: var(--white);
}

.page-contact .pc-copy:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-contact .pc-copy.is-done {
  background: var(--celadon);
  border-color: var(--celadon);
  color: var(--white);
}

.page-contact .pc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .pc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 1px;
  background: var(--copper);
}

/* ---------- 沟通节奏 ---------- */
.page-contact .pc-flow {
  background: var(--paper);
}

.page-contact .pc-flow__inner {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-contact .pc-flow__text .eyebrow {
  color: var(--copper);
  margin: 0 0 12px;
}

.page-contact .pc-flow__text .serif-title {
  color: var(--ink-900);
  margin: 0 0 clamp(20px, 3vw, 32px);
  max-width: 18ch;
}

.page-contact .pc-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--grid);
}

.page-contact .pc-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .pc-steps__no {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--copper);
  padding-top: 3px;
}

.page-contact .pc-steps li div {
  display: grid;
  gap: 4px;
}

.page-contact .pc-steps li strong {
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink-900);
}

.page-contact .pc-steps li span {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .pc-flow__fig {
  margin: 0;
  align-self: start;
}

.page-contact .pc-flow__fig .media {
  border: 1px solid var(--grid);
  background: var(--white);
  overflow: hidden;
}

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

.page-contact .pc-flow__fig .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 邮件写法 ---------- */
.page-contact .pc-mailguide {
  background: var(--paper);
  border-top: 1px solid var(--grid);
}

.page-contact .pc-mailguide__head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-contact .pc-mailguide__head .eyebrow {
  color: var(--copper);
  margin: 0 0 12px;
}

.page-contact .pc-mailguide__head .serif-title {
  color: var(--ink-900);
  margin: 0 0 12px;
}

.page-contact .pc-note {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  margin: 0;
}

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

.page-contact .pc-mailguide__item {
  padding: clamp(20px, 2.6vw, 30px) 0;
  border-bottom: 1px solid var(--grid);
  position: relative;
}

.page-contact .pc-mailguide__no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--copper);
  margin-bottom: 10px;
}

.page-contact .pc-mailguide__item h3 {
  font-family: var(--font-display);
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-900);
  margin: 0 0 10px;
}

.page-contact .pc-mailguide__item p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
  margin: 0;
}

.page-contact .pc-mailguide__item--signal {
  padding-left: clamp(16px, 2.2vw, 26px);
  border-left: 3px solid var(--signal);
  background: linear-gradient(90deg, rgba(228, 87, 46, 0.06), rgba(228, 87, 46, 0) 72%);
}

.page-contact .pc-mailguide__item--signal .pc-mailguide__no {
  color: var(--signal);
}

/* ---------- 电话说明 ---------- */
.page-contact .pc-phone {
  background: var(--ink-900);
  color: var(--paper);
}

.page-contact .pc-phone__inner {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .pc-phone__lead .eyebrow {
  color: var(--copper-light);
  margin: 0 0 14px;
}

.page-contact .pc-phone__lead .serif-title {
  color: var(--paper);
  margin: 0 0 16px;
  max-width: 16ch;
}

.page-contact .pc-phone__lead p {
  font-size: 15px;
  line-height: 1.85;
  color: #c2ccd6;
  margin: 0;
  max-width: 50ch;
}

.page-contact .pc-phone__blocks {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
}

.page-contact .pc-phone__block {
  border: 1px solid var(--pc-line-on-ink);
  padding: clamp(20px, 2.6vw, 30px);
  background: rgba(22, 41, 61, 0.6);
}

.page-contact .pc-phone__block h3 {
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 600;
  color: var(--paper);
  margin: 0 0 14px;
}

.page-contact .pc-phone__block .pc-list li {
  color: #c2ccd6;
}

.page-contact .pc-phone__block .pc-list li::before {
  background: var(--copper-light);
}

.page-contact .pc-phone__block p {
  font-size: 14.5px;
  line-height: 1.85;
  color: #c2ccd6;
  margin: 0;
}

.page-contact .pc-phone__block--follow {
  border-color: rgba(95, 143, 126, 0.55);
  background: rgba(95, 143, 126, 0.12);
}

/* ---------- 联系地址 ---------- */
.page-contact .pc-address {
  background: var(--paper);
  border-top: 1px solid var(--grid);
}

.page-contact .pc-address__grid {
  display: grid;
  gap: clamp(26px, 3.6vw, 48px);
  align-items: start;
}

.page-contact .pc-address__card .eyebrow {
  color: var(--copper);
  margin: 0 0 12px;
}

.page-contact .pc-address__card .serif-title {
  color: var(--ink-900);
  margin: 0 0 20px;
  max-width: 18ch;
}

.page-contact .pc-address__line {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-style: normal;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.7vw, 20px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-900);
  padding: clamp(16px, 2vw, 22px) clamp(16px, 2vw, 22px);
  border: 1px solid var(--grid);
  background: var(--white);
  transition: border-color var(--ease), background var(--ease), box-shadow var(--ease);
}

.page-contact .pc-address__line:hover {
  border-color: var(--copper);
  background: #fffdf8;
  box-shadow: 0 12px 30px -22px rgba(184, 122, 60, 0.9);
}

.page-contact .pc-address__marker {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 0.55em;
  background: var(--copper);
  box-shadow: 0 0 0 4px rgba(184, 122, 60, 0.16);
}

.page-contact .pc-address__hint {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text);
  margin: 16px 0 clamp(20px, 2.6vw, 28px);
  max-width: 52ch;
}

.page-contact .pc-kv {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
  margin: 0;
  padding-top: clamp(16px, 2vw, 22px);
  border-top: 1px solid var(--grid);
  font-size: 14px;
}

.page-contact .pc-kv dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  align-self: center;
}

.page-contact .pc-kv dd {
  margin: 0;
  color: var(--ink-700);
  font-weight: 500;
  word-break: break-word;
}

.page-contact .pc-address__fig {
  margin: 0;
}

.page-contact .pc-address__fig .media {
  border: 1px solid var(--grid);
  background: var(--white);
  overflow: hidden;
}

.page-contact .pc-address__fig .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.28s var(--ease);
}

.page-contact .pc-address__fig .media:hover .media__img {
  transform: scale(1.02);
}

.page-contact .pc-address__fig .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 合作与渠道 ---------- */
.page-contact .pc-partner {
  background: var(--paper);
  border-top: 1px solid var(--grid);
}

.page-contact .pc-partner__head {
  max-width: 64ch;
  margin-bottom: clamp(24px, 3.6vw, 42px);
}

.page-contact .pc-partner__head .eyebrow {
  color: var(--copper);
  margin: 0 0 12px;
}

.page-contact .pc-partner__head .serif-title {
  color: var(--ink-900);
  margin: 0 0 14px;
}

.page-contact .pc-partner__grid {
  display: grid;
  gap: var(--gap);
  align-items: stretch;
}

.page-contact .pc-partner__grid .card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.8vw, 32px);
  border: 1px solid var(--grid);
  background: var(--white);
  border-radius: 0;
}

.page-contact .pc-partner__grid .card__meta {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--copper);
  margin: 0;
}

.page-contact .pc-partner__grid .card__title {
  font-family: var(--font-display);
  font-size: clamp(17px, 1.7vw, 20px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink-900);
  margin: 0;
}

.page-contact .pc-partner__grid .card__body {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
  margin: 0;
}

.page-contact .pc-partner__need {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--grid);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .pc-partner__grid .card--focus {
  border-left: 3px solid var(--signal);
  background: linear-gradient(180deg, rgba(228, 87, 46, 0.05), rgba(228, 87, 46, 0) 60%), var(--white);
}

/* ---------- 常见咨询主题 ---------- */
.page-contact .pc-topics {
  background: var(--paper);
  border-top: 1px solid var(--grid);
}

.page-contact .pc-topics__head {
  max-width: 60ch;
  margin-bottom: clamp(22px, 3.2vw, 36px);
}

.page-contact .pc-topics__head .eyebrow {
  color: var(--copper);
  margin: 0 0 12px;
}

.page-contact .pc-topics__head .serif-title {
  color: var(--ink-900);
  margin: 0 0 12px;
}

.page-contact .pc-topics__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--grid);
}

.page-contact .pc-topics__list > li {
  border-bottom: 1px solid var(--grid);
}

.page-contact .pc-topic {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 18px 6px;
  text-decoration: none;
  color: inherit;
  transition: background var(--ease), padding-left var(--ease);
}

.page-contact .pc-topic:hover,
.page-contact .pc-topic:focus-visible {
  background: rgba(184, 122, 60, 0.07);
  padding-left: 16px;
}

.page-contact .pc-topic:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-contact .pc-topic__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  align-self: start;
  padding-top: 3px;
}

.page-contact .pc-topic__body {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.page-contact .pc-topic__q {
  font-family: var(--font-display);
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-900);
}

.page-contact .pc-topic__a {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .pc-topic__arrow {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--copper);
  transition: transform var(--ease);
}

.page-contact .pc-topic:hover .pc-topic__arrow {
  transform: translateX(4px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-mailguide__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 3.4vw, 44px);
  }

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

  .page-contact .pc-partner__grid .card--focus {
    grid-column: 1 / -1;
  }
}

@media (min-width: 880px) {
  .page-contact .pc-channels {
    margin-top: -72px;
  }

  .page-contact .pc-channels__panel {
    grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr);
  }

  .page-contact .pc-sep {
    height: 100%;
    margin: clamp(28px, 3.4vw, 44px) 0;
    width: 1px;
  }

  .page-contact .pc-flow__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .pc-phone__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .pc-phone__blocks {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-contact .pc-address__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 1040px) {
  .page-contact .pc-partner__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-partner__grid .card--focus {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-copy,
  .page-contact .pc-topic,
  .page-contact .pc-topic__arrow,
  .page-contact .pc-address__line,
  .page-contact .pc-address__fig .media__img {
    transition: none;
  }

  .page-contact .pc-address__fig .media:hover .media__img {
    transform: none;
  }

  .page-contact .pc-topic:hover .pc-topic__arrow {
    transform: none;
  }
}