.page-contact {
  --pc-pad: clamp(36px, 6vw, 80px);
  --pc-hair: 1px solid var(--yy-line);
  background: var(--yy-night);
  color: var(--yy-text);
  overflow-x: hidden;
}

.page-contact .pc-top {
  padding-top: 16px;
}

.page-contact .pc-crumbs {
  margin-bottom: clamp(10px, 2vw, 18px);
}

/* 首屏：超大字排版 + 对角色块 */
.page-contact .pc-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(18px, 3.5vw, 34px) 0 clamp(30px, 5vw, 56px);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -46%;
  right: -18%;
  width: min(920px, 118vw);
  height: 168%;
  background: linear-gradient(155deg, rgba(184, 255, 60, 0.2), rgba(56, 198, 192, 0.08) 44%, rgba(11, 21, 38, 0) 72%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 80%);
  pointer-events: none;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -60px;
  bottom: -10px;
  width: 180px;
  height: 3px;
  background: var(--yy-orange);
  transform: rotate(-11deg);
  pointer-events: none;
}

.page-contact .pc-eyebrow {
  color: var(--yy-muted);
}

.page-contact .pc-hero__title {
  margin: clamp(12px, 2vw, 18px) 0 0;
  max-width: 14em;
  font-size: clamp(34px, 8.4vw, 78px);
  line-height: 1.04;
  letter-spacing: -0.025em;
  font-weight: 900;
}

.page-contact .pc-hero__lede {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  max-width: 31em;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--yy-muted);
}

/* 三条通道 */
.page-contact .pc-section-title {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 800;
}

.page-contact .pc-channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--pc-hair);
}

.page-contact .pc-channel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: clamp(18px, 3vw, 30px) 0;
  border-bottom: var(--pc-hair);
}

.page-contact .pc-channel__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--yy-font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yy-muted);
}

.page-contact .pc-channel__no {
  color: var(--yy-green);
  font-weight: 700;
}

.page-contact .pc-channel__label {
  font-family: var(--yy-font-sans);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-contact .pc-channel__value {
  display: block;
  font-family: var(--yy-font-num);
  font-weight: 700;
  font-size: clamp(21px, 5.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--yy-text);
  text-decoration: none;
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}

.page-contact .pc-channel__value--mail {
  color: var(--yy-green);
}

.page-contact .pc-channel__value--mail:hover,
.page-contact .pc-channel__value--mail:focus-visible {
  text-decoration: underline;
  text-underline-offset: 6px;
}

.page-contact .pc-channel__value--addr {
  font-family: var(--yy-font-sans);
  font-weight: 900;
  font-size: clamp(19px, 4.4vw, 36px);
  letter-spacing: -0.01em;
}

.page-contact .pc-channel__note {
  margin: 8px 0 0;
  max-width: 32em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--yy-muted);
}

@media (min-width: 860px) {
  .page-contact .pc-channel {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    align-items: end;
    gap: clamp(24px, 4vw, 56px);
  }

  .page-contact .pc-channel__body {
    text-align: right;
  }

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

/* 横幅图 */
.page-contact .pc-banner-wrap {
  padding-bottom: clamp(34px, 5vw, 64px);
}

.page-contact .pc-banner {
  position: relative;
  margin: 0;
  border-radius: var(--yy-radius-card);
  overflow: hidden;
  background: var(--yy-layer);
  border: var(--pc-hair);
}

.page-contact .pc-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-contact .pc-banner::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 55%;
  background: linear-gradient(180deg, rgba(6, 11, 20, 0) 0%, rgba(6, 11, 20, 0.82) 100%);
  pointer-events: none;
}

.page-contact .pc-banner__cap {
  position: absolute;
  left: clamp(14px, 2.4vw, 26px);
  bottom: clamp(12px, 2vw, 22px);
  z-index: 1;
  max-width: 24em;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yy-text);
}

/* 四类分流 */
.page-contact .pc-routes-section {
  padding-bottom: clamp(38px, 6vw, 76px);
}

.page-contact .pc-routes__head {
  max-width: 34em;
}

.page-contact .pc-routes__sub {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  font-size: 15px;
  line-height: 1.75;
  color: var(--yy-muted);
}

.page-contact .pc-routes {
  display: grid;
  gap: 14px;
}

@media (min-width: 720px) {
  .page-contact .pc-routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-contact .pc-route {
  border: var(--pc-hair);
  border-radius: var(--yy-radius-card);
  background: var(--yy-layer);
  overflow: hidden;
  transition: border-color 180ms ease;
}

.page-contact .pc-route[open] {
  border-color: rgba(184, 255, 60, 0.45);
}

.page-contact .pc-route__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "no name icon"
    "no hint icon";
  gap: 4px 14px;
  align-items: center;
  min-height: 44px;
  padding: clamp(16px, 2.4vw, 24px);
  cursor: pointer;
  list-style: none;
}

.page-contact .pc-route__summary::-webkit-details-marker {
  display: none;
}

.page-contact .pc-route__summary:focus-visible {
  outline: 2px solid var(--yy-green);
  outline-offset: -2px;
}

.page-contact .pc-route__no {
  grid-area: no;
  font-family: var(--yy-font-num);
  font-size: 22px;
  font-weight: 700;
  color: var(--yy-green);
  align-self: start;
}

.page-contact .pc-route__name {
  grid-area: name;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .pc-route__hint {
  grid-area: hint;
  font-size: 13px;
  line-height: 1.55;
  color: var(--yy-muted);
}

.page-contact .pc-route__icon {
  grid-area: icon;
  position: relative;
  width: 22px;
  height: 22px;
  align-self: center;
}

.page-contact .pc-route__icon::before,
.page-contact .pc-route__icon::after {
  content: "";
  position: absolute;
  background: var(--yy-orange);
  border-radius: 2px;
}

.page-contact .pc-route__icon::before {
  left: 2px;
  right: 2px;
  top: 10px;
  height: 2px;
}

.page-contact .pc-route__icon::after {
  top: 2px;
  bottom: 2px;
  left: 10px;
  width: 2px;
  transition: opacity 180ms ease;
}

.page-contact .pc-route[open] .pc-route__icon::after {
  opacity: 0;
}

.page-contact .pc-route__panel {
  margin: 0 clamp(16px, 2.4vw, 24px);
  padding: 16px 0 clamp(18px, 2.4vw, 24px);
  border-top: 1px dashed var(--yy-line);
}

.page-contact .pc-route__panel p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.78;
}

.page-contact .pc-route__panel p:last-child {
  margin-bottom: 0;
}

.page-contact .pc-route__panel .pc-route__first {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--yy-font-num);
  font-size: 13px;
  color: var(--yy-text);
}

.page-contact .pc-route__first-label {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--yy-radius-pill);
  background: rgba(255, 90, 43, 0.16);
  color: var(--yy-orange);
  font-family: var(--yy-font-sans);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-contact .pc-route__panel .pc-route__tip {
  padding-left: 12px;
  border-left: 2px solid var(--yy-teal);
  font-size: 13px;
  line-height: 1.8;
  color: var(--yy-muted);
}

/* 来信建议：暖纸色窄栏 */
.page-contact .pc-letter {
  background: var(--yy-paper);
  color: var(--yy-paper-ink);
  padding: clamp(38px, 6vw, 76px) 0;
}

.page-contact .pc-letter__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 900px) {
  .page-contact .pc-letter__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

.page-contact .pc-letter .yy-eyebrow {
  color: rgba(18, 24, 31, 0.6);
}

.page-contact .pc-letter__title {
  margin: 12px 0 0;
  max-width: 20em;
  font-family: var(--yy-font-serif);
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-contact .pc-letter__lede {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(18, 24, 31, 0.72);
}

.page-contact .pc-letter__list {
  list-style: none;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .pc-letter__list li {
  display: grid;
  gap: 3px;
  padding-left: 14px;
  border-left: 3px solid var(--yy-orange);
}

.page-contact .pc-letter__k {
  font-size: 15px;
  font-weight: 800;
}

.page-contact .pc-letter__v {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(18, 24, 31, 0.72);
}

.page-contact .pc-letter__aside {
  background: var(--yy-ink);
  color: var(--yy-text);
  border-radius: var(--yy-radius-card);
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .pc-letter__aside-title {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--yy-muted);
}

.page-contact .pc-letter__aside-big {
  margin: 8px 0 10px;
  font-family: var(--yy-font-num);
  font-size: clamp(28px, 4.4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--yy-green);
}

.page-contact .pc-letter__aside-text {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--yy-muted);
}

.page-contact .pc-letter__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 24px;
  border-radius: var(--yy-radius-pill);
  background: var(--yy-green);
  color: var(--yy-ink);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, filter 180ms ease;
}

.page-contact .pc-letter__btn:hover,
.page-contact .pc-letter__btn:focus-visible {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

/* 纠错三类 */
.page-contact .pc-fix {
  padding: clamp(38px, 6vw, 78px) 0;
}

.page-contact .pc-fix__lede {
  margin: -8px 0 clamp(20px, 3vw, 30px);
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--yy-muted);
}

.page-contact .pc-fix__grid {
  display: grid;
  gap: 14px;
}

@media (min-width: 820px) {
  .page-contact .pc-fix__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-contact .pc-fix__item {
  position: relative;
  padding: clamp(20px, 2.8vw, 28px);
  border: var(--pc-hair);
  border-radius: var(--yy-radius-card);
  background: linear-gradient(180deg, rgba(19, 34, 56, 0.92) 0%, rgba(11, 21, 38, 0.92) 100%);
  overflow: hidden;
}

.page-contact .pc-fix__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.page-contact .pc-fix__item--score::before {
  background: var(--yy-orange);
}

.page-contact .pc-fix__item--clip::before {
  background: var(--yy-teal);
}

.page-contact .pc-fix__item--catalog::before {
  background: var(--yy-yellow);
}

.page-contact .pc-fix__tag {
  display: inline-block;
  padding: 3px 11px;
  border-radius: var(--yy-radius-pill);
  border: 1px solid var(--yy-line);
  font-family: var(--yy-font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yy-muted);
}

.page-contact .pc-fix__name {
  margin: 14px 0 10px;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.page-contact .pc-fix__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--yy-muted);
}

/* 站点信息 */
.page-contact .pc-site {
  position: relative;
  padding: clamp(38px, 6vw, 78px) 0 clamp(46px, 7vw, 96px);
  border-top: var(--pc-hair);
  background-image:
    linear-gradient(90deg, rgba(42, 59, 85, 0.55) 1px, transparent 1px),
    linear-gradient(0deg, rgba(42, 59, 85, 0.38) 1px, transparent 1px);
  background-size: 72px 72px, 72px 72px;
}

.page-contact .pc-site__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 900px) {
  .page-contact .pc-site__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

.page-contact .pc-site__title {
  margin: 12px 0 0;
  font-size: clamp(23px, 3.2vw, 36px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.page-contact .pc-site__lede {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yy-muted);
}

.page-contact .pc-site__list {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-site__list > div {
  display: grid;
  grid-template-columns: 5em minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(147, 163, 186, 0.28);
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .pc-site__list dt {
  color: var(--yy-muted);
}

.page-contact .pc-site__list dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.page-contact .pc-site__links {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--yy-muted);
}

.page-contact .pc-site__links a {
  color: var(--yy-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(184, 255, 60, 0.45);
  padding-bottom: 1px;
}

.page-contact .pc-site__links a:hover,
.page-contact .pc-site__links a:focus-visible {
  border-bottom-color: var(--yy-green);
}

.page-contact .pc-site__figure {
  margin: 0;
  border-radius: var(--yy-radius-card);
  overflow: hidden;
  border: var(--pc-hair);
  background: var(--yy-layer);
}

.page-contact .pc-site__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-route,
  .page-contact .pc-route__icon::after,
  .page-contact .pc-letter__btn {
    transition: none;
  }

  .page-contact .pc-letter__btn:hover,
  .page-contact .pc-letter__btn:focus-visible {
    transform: none;
  }
}
<<<END>>>