.page-contact {
  --pc-line: rgba(244, 251, 243, .13);
  --pc-line-strong: rgba(244, 251, 243, .26);
  --pc-soft: rgba(27, 59, 51, .55);
  background: var(--ink);
  color: var(--mist);
  overflow-x: hidden;
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: clamp(26px, 5.5vw, 58px) 0 clamp(24px, 4vw, 48px);
  overflow: hidden;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: -20% 0 0 0;
  background-image:
    linear-gradient(rgba(143, 167, 154, .10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 167, 154, .10) 1px, transparent 1px);
  background-size: clamp(36px, 6vw, 72px) clamp(36px, 6vw, 72px);
  -webkit-mask-image: radial-gradient(130% 90% at 12% 0%, #000 18%, transparent 76%);
  mask-image: radial-gradient(130% 90% at 12% 0%, #000 18%, transparent 76%);
  pointer-events: none;
}

.page-contact .pc-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero .eyebrow {
  color: var(--gold);
  margin: 18px 0 0;
}

.page-contact .pc-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(42px, 12vw, 128px);
  line-height: .98;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-contact .pc-hero__lead {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 60ch;
  font-size: clamp(15.5px, 1.2vw, 18px);
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 横幅 ---------- */
.page-contact .pc-band {
  padding-top: clamp(6px, 2vw, 18px);
}

.page-contact .pc-band__frame {
  margin: 0;
  border: 1px solid var(--pc-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--deep);
  position: relative;
}

.page-contact .pc-band__frame img {
  width: 100%;
  aspect-ratio: 1600 / 600;
  object-fit: cover;
  opacity: .88;
}

.page-contact .pc-band__caption {
  padding: 14px clamp(16px, 2.4vw, 26px) 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage);
  border-top: 1px solid var(--pc-line);
  background: var(--char);
}

/* ---------- 章节索引 ---------- */
.page-contact .pc-index {
  margin-top: clamp(22px, 4vw, 40px);
  border-top: 1px solid var(--pc-line);
  border-bottom: 1px solid var(--pc-line);
  background: var(--char);
}

.page-contact .pc-index__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 20px;
  padding: 13px 0;
}

.page-contact .pc-index__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-contact .pc-index__link {
  font-size: 13.5px;
  color: var(--mist);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.page-contact .pc-index__link:hover,
.page-contact .pc-index__link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 通用章节标题微调 ---------- */
.page-contact .section__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 50px);
  line-height: 1.06;
  color: var(--mist);
}

.page-contact .section .eyebrow {
  color: var(--gold);
}

/* ---------- 联系方式主面板 ---------- */
.page-contact .pc-board {
  margin-top: clamp(22px, 4vw, 42px);
  border-top: 1px solid var(--pc-line-strong);
}

.page-contact .pc-line {
  padding: clamp(24px, 4.4vw, 42px) 0;
  border-bottom: 1px solid var(--pc-line);
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.page-contact .pc-line__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 16px;
}

.page-contact .pc-line__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-contact .pc-line__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(20px, 5.4vw, 46px);
  line-height: 1.14;
  letter-spacing: -.005em;
  color: var(--mist);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .pc-mail {
  display: flex;
  flex-wrap: wrap;
  column-gap: .1em;
}

.page-contact .pc-line--phone .pc-line__value {
  font-size: clamp(34px, 9.6vw, 92px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--lime);
}

.page-contact .pc-line__value--addr {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(17px, 2.6vw, 24px);
  line-height: 1.5;
  max-width: 30ch;
}

.page-contact .pc-line__hint {
  margin: 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sage);
}

/* ---------- 展签：邮件标题建议 ---------- */
.page-contact .pc-plate {
  margin-top: clamp(22px, 3.6vw, 38px);
  border-left: 2px solid var(--gold);
}

.page-contact .pc-plate__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .pc-plate__list li {
  position: relative;
  padding-left: 15px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .pc-plate__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

/* ---------- 咨询分类 ---------- */
.page-contact .pc-channels__head {
  display: grid;
  gap: clamp(20px, 4vw, 38px);
  align-items: end;
}

.page-contact .pc-channels__figure {
  margin: 0;
  max-width: 340px;
  border: 1px solid var(--pc-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--deep);
}

.page-contact .pc-channels__figure img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-contact .pc-tracks {
  margin-top: clamp(24px, 4.4vw, 46px);
  display: grid;
  gap: 16px;
}

.page-contact .pc-track {
  --accent: var(--lime);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 13px;
  min-width: 0;
  padding: clamp(22px, 3vw, 30px) clamp(18px, 2.4vw, 26px) clamp(24px, 3.2vw, 32px);
  background: var(--deep);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-contact .pc-track::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent 92%);
}

.page-contact .pc-track--archive { --accent: var(--gold); }
.page-contact .pc-track--coop { --accent: var(--brick); }

.page-contact .pc-track__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--accent);
}

.page-contact .pc-track__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.2;
  color: var(--mist);
}

.page-contact .pc-track__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
  opacity: .9;
}

.page-contact .pc-track__list {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--pc-line);
  display: grid;
  gap: 7px;
}

.page-contact .pc-track__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sage);
}

.page-contact .pc-track__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.page-contact .pc-track__link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-contact .pc-track__link:hover,
.page-contact .pc-track__link:focus-visible {
  color: var(--mist);
}

/* ---------- 服务范围与节奏 ---------- */
.page-contact .pc-metrics {
  margin-top: clamp(22px, 3.6vw, 38px);
}

.page-contact .pc-metrics .scorecard {
  min-width: 0;
}

.page-contact .pc-metrics .scorecard:nth-child(2) .scorecard__value {
  color: var(--gold);
}

.page-contact .pc-rhythm {
  margin-top: clamp(22px, 3.4vw, 36px);
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-rhythm__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-rhythm__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-contact .pc-rhythm__val {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 合作与共建 ---------- */
.page-contact .pc-coop {
  background:
    linear-gradient(180deg, rgba(18, 48, 41, .9), rgba(10, 28, 24, .2) 78%),
    var(--ink);
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-coop__grid {
  margin-top: clamp(24px, 4vw, 42px);
  display: grid;
  gap: 0;
}

.page-contact .pc-coop__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-coop__no {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1;
  color: var(--lime);
}

.page-contact .pc-coop__item:nth-child(2) .pc-coop__no { color: var(--gold); }
.page-contact .pc-coop__item:nth-child(3) .pc-coop__no { color: var(--sage); }

.page-contact .pc-coop__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--mist);
}

.page-contact .pc-coop__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
  opacity: .88;
  max-width: 60ch;
}

.page-contact .pc-coop__foot {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sage);
}

.page-contact .pc-coop__foot a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 常见咨询 ---------- */
.page-contact .pc-faq {
  margin-top: clamp(20px, 3.4vw, 34px);
  display: grid;
  gap: 10px;
}

.page-contact .pc-faq .collapse__head {
  width: 100%;
  text-align: left;
  font-size: 15px;
}

.page-contact .pc-faq .collapse__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
  opacity: .9;
}

.page-contact .pc-faq .collapse__body a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 收束带 ---------- */
.page-contact .pc-closing {
  margin-top: clamp(46px, 7vw, 90px);
  padding: clamp(38px, 6.5vw, 78px) 0 clamp(44px, 7vw, 88px);
  background:
    linear-gradient(180deg, rgba(176, 64, 44, .22), transparent 68%),
    var(--char);
  border-top: 1px solid var(--pc-line-strong);
}

.page-contact .pc-closing__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4.6vw, 46px);
  line-height: 1.1;
  color: var(--mist);
}

.page-contact .pc-closing__text {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--sage);
}

.page-contact .pc-closing__links {
  margin-top: clamp(22px, 3.4vw, 32px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .pc-closing__meta {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--pc-line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--sage);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-rhythm__row {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }
}

@media (min-width: 880px) {
  .page-contact .pc-tracks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .pc-coop__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 28px;
  }

  .page-contact .pc-coop__item {
    border-top: 2px solid var(--pc-line-strong);
  }
}

@media (min-width: 900px) {
  .page-contact .pc-channels__head {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .55fr);
    gap: 52px;
  }

  .page-contact .pc-channels__figure {
    margin-left: auto;
  }
}

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