.page-contact {
  --pc-line: 1px solid var(--phx-frame);
  --pc-hair: 1px solid var(--phx-grid);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding: 32px 0 44px;
  background: var(--phx-ink);
  border-bottom: var(--pc-line);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, var(--phx-frame) 1px, transparent 1px),
    linear-gradient(0deg, var(--phx-frame) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px;
  opacity: 0.42;
  pointer-events: none;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  top: -70px;
  right: -18%;
  width: 70%;
  height: calc(100% + 140px);
  background: linear-gradient(165deg, rgba(224, 58, 31, 0.32), rgba(242, 106, 33, 0.07) 62%, rgba(242, 106, 33, 0) 88%);
  clip-path: polygon(32% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .pc-rot {
  display: none;
}

.page-contact .pc-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--phx-frame);
  border: var(--pc-line);
}

.page-contact .pc-hero__facts li {
  background: var(--phx-coal);
  padding: 13px 15px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-contact .pc-fact__num {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--phx-amber);
  line-height: 1.2;
}

.page-contact .pc-fact__label {
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: var(--phx-mute);
}

.page-contact .pc-hero__actions {
  margin: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .pc-hero__figure {
  margin: 0;
  border: var(--pc-line);
  background: var(--phx-coal);
  overflow: hidden;
}

.page-contact .pc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-contact .pc-hero__figure .phx-figure-cap {
  padding: 10px 14px;
  border-top: var(--pc-hair);
}

/* ---------- 通用区块 ---------- */
.page-contact .pc-section {
  padding: 48px 0;
  border-bottom: var(--pc-line);
}

.page-contact .pc-section--band {
  background: var(--phx-deep);
}

.page-contact .pc-section__head {
  max-width: 760px;
  margin-bottom: 26px;
}

.page-contact .pc-section__head .phx-lede {
  margin-bottom: 0;
}

/* ---------- 联系渠道 ---------- */
.page-contact .pc-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--phx-frame);
  border: var(--pc-line);
}

.page-contact .pc-channel {
  background: var(--phx-coal);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.page-contact .pc-channel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: var(--pc-hair);
}

.page-contact .pc-channel__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--phx-orange);
}

.page-contact .pc-channel__val {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--phx-cream);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .pc-channel__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--phx-mute);
}

.page-contact .pc-channel__note a {
  color: var(--phx-cream);
  text-decoration: underline;
  text-decoration-color: var(--phx-red);
  text-underline-offset: 3px;
}

.page-contact .pc-channel__note a:hover {
  color: var(--phx-amber);
}

/* 复制按钮 */
.page-contact .phx-copy {
  appearance: none;
  cursor: pointer;
  border: 1px solid var(--phx-grid);
  background: transparent;
  color: var(--phx-body);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1;
  padding: 6px 10px;
  border-radius: 0;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-contact .phx-copy:hover {
  border-color: var(--phx-amber);
  color: var(--phx-amber);
}

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

.page-contact .phx-copy[data-copied] {
  border-color: var(--phx-amber);
  color: var(--phx-amber);
}

.page-contact .phx-copy[data-copied] .pc-copy__text {
  display: none;
}

.page-contact .phx-copy[data-copied]::after {
  content: "已复制 ✓";
  color: var(--phx-amber);
}

/* ---------- 合作方向 ---------- */
.page-contact .pc-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}

.page-contact .phx-tag {
  appearance: none;
  cursor: pointer;
  border: 1px solid var(--phx-grid);
  background: transparent;
  color: var(--phx-body);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.2;
  padding: 9px 16px;
  border-radius: 0;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-contact .phx-tag:hover {
  border-color: var(--phx-red);
  color: var(--phx-cream);
}

.page-contact .phx-tag:focus-visible {
  outline: 2px solid var(--phx-cream);
  outline-offset: 2px;
}

.page-contact .phx-tag[aria-pressed="true"] {
  background: var(--phx-red);
  border-color: var(--phx-red);
  color: var(--phx-cream);
}

.page-contact .pc-tracks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--phx-frame);
  border: var(--pc-line);
}

.page-contact .pc-track {
  background: var(--phx-coal);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 2px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-contact .pc-track:hover {
  background: #212B38;
  border-top-color: var(--phx-red);
}

.page-contact .pc-track__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--phx-amber);
}

.page-contact .pc-track .phx-h3 {
  margin: 0;
}

.page-contact .pc-track__fit {
  margin: 0;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--phx-blue, var(--phx-mute));
  padding-bottom: 10px;
  border-bottom: var(--pc-hair);
}

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

.page-contact .pc-track__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--phx-body);
}

.page-contact .pc-track__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--phx-amber);
}

.page-contact .pc-track__tail {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--phx-grid);
  font-size: 13px;
  line-height: 1.75;
  color: var(--phx-mute);
}

/* ---------- 来信清单 / 查询反馈列表 ---------- */
.page-contact .pc-materials {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: var(--pc-hair);
  counter-reset: pc-item;
}

.page-contact .pc-materials li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: var(--pc-hair);
  font-size: 15px;
  line-height: 1.75;
  color: var(--phx-body);
}

.page-contact .pc-materials li > .phx-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--phx-amber);
}

.page-contact .pc-feedback__tail {
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--phx-body);
}

/* ---------- 流程 ---------- */
.page-contact .pc-flow-figure {
  margin: 0 0 22px;
  border: var(--pc-line);
  background: var(--phx-coal);
  overflow: hidden;
}

.page-contact .pc-flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 7 / 3;
  object-fit: cover;
}

.page-contact .pc-flow-figure .phx-figure-cap {
  padding: 10px 14px;
  border-top: var(--pc-hair);
}

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

.page-contact .pc-step {
  background: var(--phx-coal);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.page-contact .pc-step__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--phx-orange);
}

.page-contact .pc-step .phx-h3 {
  margin: 0;
}

.page-contact .pc-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--phx-body);
}

.page-contact .pc-step__time {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--phx-grid);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--phx-mute);
  transition: color 0.2s ease;
}

@media (hover: hover) {
  .page-contact .pc-step:hover .pc-step__time,
  .page-contact .pc-step:focus-within .pc-step__time {
    color: var(--phx-amber);
  }
}

/* ---------- 地址收口 ---------- */
.page-contact .pc-addr {
  background: var(--phx-paper);
  color: #141D28;
  padding: 36px 0;
}

.page-contact .pc-addr__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: #8C5522;
}

.page-contact .pc-addr__value {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: #141D28;
}

.page-contact .pc-addr__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: #4C5765;
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-contact .pc-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-contact .pc-hero {
    padding: 44px 0 56px;
  }

  .page-contact .pc-section {
    padding: 68px 0;
  }

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

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

@media (min-width: 900px) {
  .page-contact .pc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.72fr);
    align-items: start;
    gap: 40px;
  }

  .page-contact .pc-hero__figure img {
    aspect-ratio: 3 / 4;
  }

  .page-contact .pc-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .pc-addr {
    padding: 44px 0;
  }

  .page-contact .pc-addr__value {
    font-size: 22px;
  }
}

@media (min-width: 1200px) {
  .page-contact .pc-rot {
    display: block;
    position: absolute;
    right: 14px;
    top: 88px;
    z-index: 2;
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.24em;
    color: var(--phx-mute);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-track,
  .page-contact .phx-tag,
  .page-contact .phx-copy,
  .page-contact .pc-step__time {
    transition: none;
  }
}
<<<END>>>

.page-contact {
  --phx-blue: currentColor;
}