.page-contact {
  --pc-line: rgba(43, 33, 24, .14);
  --pc-line-dark: rgba(201, 212, 232, .18);
  --pc-card: #FFFDF8;
  background: var(--paper);
  color: var(--brown);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

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

.page-contact .container {
  width: 100%;
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}

.page-contact .inline-link {
  color: var(--print);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 72, 43, .45);
  font-weight: 500;
}

.page-contact .inline-link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .inline-link--light {
  color: var(--orange-soft);
  border-bottom-color: rgba(255, 154, 92, .5);
}

.page-contact .inline-link--light:hover {
  color: #fff;
  border-bottom-color: #fff;
}

/* 面包屑 */
.page-contact__crumb {
  background: var(--ink-2);
  padding-block: .7rem;
  border-bottom: 1px solid var(--pc-line-dark);
}

.page-contact__crumb .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--cool-dim);
}

.page-contact__crumb .breadcrumb__list li {
  display: flex;
  align-items: center;
  gap: .35rem;
}

.page-contact__crumb .breadcrumb__list li + li::before {
  content: "/";
  color: var(--orange);
}

.page-contact__crumb .breadcrumb__link {
  color: var(--cool);
  text-decoration: none;
}

.page-contact__crumb .breadcrumb__link:hover {
  color: var(--orange-soft);
}

.page-contact__crumb .breadcrumb__current {
  color: var(--cool-dim);
}

/* 首屏 */
.contact-hero {
  position: relative;
  padding-block: clamp(1.75rem, 5vw, 3.5rem) clamp(2.5rem, 7vw, 5rem);
  background:
    radial-gradient(90% 70% at 86% -12%, rgba(47, 107, 255, .32), transparent 62%),
    radial-gradient(70% 60% at 4% 112%, rgba(255, 106, 26, .16), transparent 66%),
    linear-gradient(165deg, var(--ink-0) 0%, var(--ink-1) 62%, var(--ink-2) 100%);
  color: var(--cool);
  overflow: hidden;
}

.contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--blue) 55%, transparent);
  opacity: .85;
}

.contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 5vw, 3rem);
  align-items: start;
}

.page-contact .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--orange-soft);
}

.eyebrow__num {
  display: inline-block;
  padding: .1rem .45rem;
  border-radius: 2px;
  background: var(--orange);
  color: var(--ink-0);
}

.contact-hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.9rem, 5.4vw, 3.3rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: #fff;
}

.contact-hero h1 em {
  display: inline-block;
  font-style: normal;
  color: var(--orange);
  transform: rotate(-3deg);
}

.hero-lead {
  margin: 0 0 1.5rem;
  max-width: 36ch;
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.8;
  color: var(--cool);
}

.hero-contact {
  display: grid;
  margin-bottom: 1.25rem;
  border-top: 1px solid var(--pc-line-dark);
}

.hero-contact__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: .2rem 1rem;
  padding: .7rem 0;
  border-bottom: 1px solid var(--pc-line-dark);
}

.hero-contact__label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--cool-dim);
}

.hero-contact__value {
  font-family: var(--font-mono);
  font-size: clamp(.85rem, 2.6vw, .98rem);
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 26, .5);
  word-break: break-word;
}

a.hero-contact__value:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--orange-soft);
}

.hero-contact__value--plain {
  border-bottom-color: transparent;
}

.hero-index {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.hero-index__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: .4rem .75rem;
  border: 1px solid var(--pc-line-dark);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--cool);
  text-decoration: none;
  transition: border-color .18s ease, color .18s ease;
}

.hero-index__link:hover,
.hero-index__link.is-active {
  border-color: var(--orange);
  color: var(--orange-soft);
}

.hero-visual {
  position: relative;
}

.hero-visual::before {
  content: "";
  position: absolute;
  top: -10px;
  right: -10px;
  width: 52%;
  height: 52%;
  border-top: 1px dashed rgba(255, 106, 26, .55);
  border-right: 1px dashed rgba(255, 106, 26, .55);
  pointer-events: none;
}

.hero-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--pc-line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
  box-shadow: 0 26px 48px -34px rgba(0, 0, 0, .95);
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.hero-figure__tag {
  position: absolute;
  left: .75rem;
  bottom: .75rem;
  padding: .18rem .5rem;
  border-radius: 2px;
  background: var(--green);
  color: var(--ink-0);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .12em;
}

/* 章节头 */
.page-contact .section-head {
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-contact .section-head__num {
  display: inline-block;
  margin-bottom: .55rem;
  padding-bottom: .15rem;
  border-bottom: 2px solid var(--print);
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--print);
}

.page-contact .section-head__title {
  margin: 0 0 .55rem;
  font-size: clamp(1.45rem, 3.6vw, 2.2rem);
  font-weight: 900;
  line-height: 1.22;
  color: var(--brown);
}

.page-contact .section-head__note {
  margin: 0;
  font-size: .96rem;
  color: var(--warm);
}

.page-contact .section-head--dark .section-head__num {
  color: var(--orange-soft);
  border-bottom-color: var(--orange);
}

.page-contact .section-head--dark .section-head__title {
  color: #fff;
}

.page-contact .section-head--dark .section-head__note {
  color: var(--cool-dim);
}

/* 联系方式 */
.contact-channels {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(43, 33, 24, .09) 1px, transparent 1px);
  background-size: 22px 22px;
}

.channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
}

.channel-card {
  position: relative;
  padding: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid var(--pc-line);
  border-top: 3px solid var(--print);
  border-radius: var(--radius);
  background: var(--pc-card);
  box-shadow: 0 16px 30px -26px rgba(43, 33, 24, .9);
}

.channel-card--main {
  border-color: var(--pc-line-dark);
  border-top-color: var(--orange);
  background: linear-gradient(168deg, var(--ink-1), var(--ink-0));
}

.channel-card__label {
  margin: 0 0 .3rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--warm);
}

.channel-card--main .channel-card__label {
  margin-top: .9rem;
  color: var(--orange-soft);
}

.channel-card--main .channel-card__label:first-child {
  margin-top: 0;
}

.channel-card__title {
  margin: 0 0 .5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--brown);
}

.channel-card--main .channel-card__title {
  color: #fff;
}

.channel-card__mail,
.channel-card__tel {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.8vw, 1.2rem);
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 26, .45);
  word-break: break-all;
}

.channel-card__mail:hover,
.channel-card__tel:hover {
  color: var(--orange-soft);
}

.channel-card__value {
  margin: 0 0 .4rem;
  font-family: var(--font-mono);
  font-size: .98rem;
  color: var(--brown);
  word-break: break-word;
}

.channel-card__desc {
  margin: .55rem 0 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--warm);
}

.channel-card--main .channel-card__desc {
  color: var(--cool-dim);
}

.channel-card--main .btn {
  margin-top: 1.2rem;
}

.channel-figure {
  grid-column: 1 / -1;
  margin: 0;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper-shadow);
}

.channel-figure img {
  width: 100%;
  aspect-ratio: 10 / 5;
  object-fit: cover;
}

/* 合作与媒体 */
.contact-partners {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background:
    radial-gradient(80% 70% at 92% 0%, rgba(255, 106, 26, .16), transparent 60%),
    linear-gradient(155deg, var(--ink-1) 0%, var(--ink-0) 72%);
  color: var(--cool);
}

.partners-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.kicker {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--orange-soft);
}

.kicker--print {
  color: var(--print);
}

.contact-partners h2,
.contact-city h2,
.verify-card h2 {
  margin: 0 0 .8rem;
  font-size: clamp(1.45rem, 3.6vw, 2.1rem);
  font-weight: 900;
  line-height: 1.24;
  color: #fff;
}

.contact-city h2,
.verify-card h2 {
  color: var(--brown);
}

.verify-card h2 {
  color: #fff;
}

.partners-intro__text {
  margin: 0 0 .8rem;
  max-width: 42ch;
  font-size: .96rem;
  line-height: 1.8;
  color: var(--cool-dim);
}

.partner-list {
  display: grid;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.partner-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .15rem .85rem;
  padding: .85rem 1rem;
  border: 1px solid var(--pc-line-dark);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
  background: rgba(17, 28, 51, .68);
}

.partner-item__num {
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 700;
  color: var(--green);
}

.partner-item__title {
  grid-column: 2;
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.partner-item__text {
  grid-column: 2;
  margin: .2rem 0 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--cool-dim);
}

/* 用户支持 */
.contact-support {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background: linear-gradient(180deg, var(--paper) 0%, #F7EEE0 100%);
}

.support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .8rem;
}

.support-card {
  padding: 1.1rem 1rem;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius);
  background: var(--pc-card);
  box-shadow: 0 12px 24px -24px rgba(43, 33, 24, .9);
}

.support-card__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--print);
}

.support-card h3 {
  margin: .3rem 0 .4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--brown);
}

.support-card p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--warm);
}

/* 场景速查 */
.contact-topics {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background:
    linear-gradient(180deg, var(--ink-0) 0%, var(--ink-2) 100%);
  color: var(--cool);
}

.topic-switch {
  position: relative;
}

.topic-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.topic-switch__labels {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1.1rem;
}

.topic-switch__label {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: .45rem 1rem;
  border: 1px solid var(--pc-line-dark);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--cool);
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}

.topic-switch__label:hover {
  border-color: var(--orange);
  color: var(--orange-soft);
}

#topic-brand:checked ~ .topic-switch__labels [for="topic-brand"],
#topic-media:checked ~ .topic-switch__labels [for="topic-media"],
#topic-user:checked ~ .topic-switch__labels [for="topic-user"],
#topic-fix:checked ~ .topic-switch__labels [for="topic-fix"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-0);
  font-weight: 700;
}

#topic-brand:focus-visible ~ .topic-switch__labels [for="topic-brand"],
#topic-media:focus-visible ~ .topic-switch__labels [for="topic-media"],
#topic-user:focus-visible ~ .topic-switch__labels [for="topic-user"],
#topic-fix:focus-visible ~ .topic-switch__labels [for="topic-fix"] {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.topic-switch__panel {
  display: none;
  padding: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid var(--pc-line-dark);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
  background: rgba(17, 28, 51, .78);
}

#topic-brand:checked ~ .topic-switch__panels #panel-brand,
#topic-media:checked ~ .topic-switch__panels #panel-media,
#topic-user:checked ~ .topic-switch__panels #panel-user,
#topic-fix:checked ~ .topic-switch__panels #panel-fix {
  display: block;
}

.topic-panel__subject {
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: clamp(.88rem, 2.6vw, 1rem);
  color: #fff;
  word-break: break-word;
}

.topic-panel__subject span {
  display: inline-block;
  margin-right: .6rem;
  padding: .1rem .45rem;
  border-radius: 2px;
  background: var(--green);
  color: var(--ink-0);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .1em;
  vertical-align: middle;
}

.topic-panel__points {
  display: grid;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.topic-panel__points li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--cool);
}

.topic-panel__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

/* 城市印记 */
.contact-city {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  background: var(--paper);
}

.contact-city__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
}

.contact-city__text p {
  margin: 0 0 .75rem;
  max-width: 40ch;
  font-size: .96rem;
  line-height: 1.8;
  color: var(--brown);
}

.contact-city__caption {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--warm);
}

.city-bridge {
  width: 100%;
  height: auto;
}

.city-bridge__arch {
  fill: none;
  stroke: var(--print);
  stroke-width: 1.6;
  opacity: .85;
}

.city-bridge__hanger {
  fill: none;
  stroke: var(--warm);
  stroke-width: 1;
  opacity: .55;
}

.city-bridge__deck {
  fill: none;
  stroke: var(--brown);
  stroke-width: 1.4;
  opacity: .7;
}

.city-bridge__water {
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.2;
  opacity: .45;
}

/* 正版认证 */
.contact-verify {
  padding-block: clamp(2.5rem, 7vw, 4rem);
  background: linear-gradient(180deg, var(--ink-0) 0%, var(--ink-1) 100%);
  color: var(--cool);
}

.verify-card {
  position: relative;
  padding: clamp(1.25rem, 4vw, 2.25rem);
  border: 1px solid var(--pc-line-dark);
  border-top: 3px solid var(--green);
  border-radius: var(--radius);
  background: rgba(11, 18, 32, .82);
}

.verify-card p {
  margin: 0 0 .75rem;
  max-width: 62ch;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--cool);
}

.verify-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1rem;
}

/* 回到顶部 */
.back-top {
  margin: 0;
  padding: 1.4rem 1rem 1.8rem;
  text-align: center;
  background: var(--paper);
}

.back-top a {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--brown);
  text-decoration: none;
  border-bottom: 1px solid var(--print);
  padding-bottom: .12rem;
}

.back-top a:hover {
  color: var(--print);
}

@media (min-width: 700px) {
  .support-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 880px) {
  .channel-grid {
    grid-template-columns: 1.08fr .92fr;
  }

  .channel-card--main {
    grid-row: span 2;
  }

  .channel-figure img {
    aspect-ratio: 10 / 4;
  }
}

@media (min-width: 900px) {
  .contact-hero__grid {
    grid-template-columns: 1.06fr .94fr;
  }

  .partners-layout {
    grid-template-columns: .9fr 1.1fr;
    align-items: start;
  }

  .contact-city__inner {
    grid-template-columns: .84fr 1.16fr;
  }
}

@media (min-width: 1000px) {
  .support-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }

  .contact-hero h1 em {
    transform: none;
  }

  .page-contact .hero-index__link,
  .page-contact .topic-switch__label {
    scroll-behavior: auto;
  }
}
<<<END>>>