.page-contact {
  --contact-gap: clamp(28px, 5vw, 56px);
  --contact-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(162deg, var(--sea-800) 0%, var(--sea-800) 56%, var(--sea-900) 100%);
  color: var(--paper);
  padding: clamp(24px, 5vw, 42px) 0 clamp(40px, 7vw, 88px);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -52%;
  width: min(760px, 92vw);
  height: 380px;
  background: radial-gradient(circle at 34% 34%, rgba(217, 154, 43, 0.26), rgba(217, 154, 43, 0) 64%);
  transform: rotate(-9deg);
  pointer-events: none;
}

.page-contact .contact-hero .breadcrumb__list {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero .breadcrumb__link,
.page-contact .contact-hero .breadcrumb__current {
  color: var(--mist);
}

.page-contact .contact-hero .breadcrumb__link:hover {
  color: var(--amber-bright);
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--contact-gap);
  margin-top: clamp(20px, 4vw, 34px);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 6.4vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
  max-width: 20ch;
}

.page-contact .contact-hero__lede {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.85;
  color: rgba(251, 248, 242, 0.86);
  max-width: 56ch;
  margin: 18px 0 0;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__panel {
  border: 1px solid rgba(169, 190, 207, 0.32);
  border-radius: var(--contact-radius);
  padding: 6px clamp(16px, 3vw, 24px);
  background: rgba(6, 24, 38, 0.38);
}

.page-contact .contact-readout {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-contact .contact-readout:last-child {
  border-bottom: 0;
}

.page-contact .contact-readout__label {
  font-family: var(--font-body);
  font-size: 0.86rem;
  color: var(--mist);
  margin: 0;
}

.page-contact .contact-readout__value {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--amber-bright);
  margin: 0;
}

/* 主体：左索引 + 右内容 */
.page-contact .contact-body {
  display: grid;
  gap: var(--contact-gap);
  padding-top: clamp(34px, 6vw, 72px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .contact-index__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--line);
  margin: 0 0 10px;
}

.page-contact .contact-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-contact .contact-index__item {
  flex: 0 0 auto;
}

.page-contact .contact-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--hairline-dark);
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.86rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-contact .contact-index__link:hover {
  border-color: var(--amber);
  color: var(--sea-800);
  background: rgba(217, 154, 43, 0.1);
}

.page-contact .contact-index__link:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-contact .contact-index__num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--amber);
}

.page-contact .contact-sections {
  display: grid;
  gap: clamp(20px, 3.4vw, 34px);
  min-width: 0;
}

/* 章节 */
.page-contact .contact-sec {
  padding: clamp(20px, 3vw, 30px) 0 0;
  border-top: 1px solid var(--hairline);
}

.page-contact .contact-sec--sand,
.page-contact .contact-sec--navy {
  border-top: 0;
  border-radius: var(--contact-radius);
  padding: clamp(24px, 4vw, 40px);
}

.page-contact .contact-sec--sand {
  background: var(--sand);
  color: var(--ink);
}

.page-contact .contact-sec--navy {
  background: var(--sea-800);
  color: var(--paper);
}

.page-contact .contact-sec--scope {
  border-top: 1px solid var(--hairline-dark);
  padding-top: clamp(26px, 4vw, 40px);
}

.page-contact .contact-sec__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 20px);
}

.page-contact .contact-sec__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  line-height: 1;
  color: var(--amber);
  flex: 0 0 auto;
}

.page-contact .contact-sec--navy .contact-sec__num {
  color: var(--amber-bright);
}

.page-contact .contact-sec__title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2.05rem);
  line-height: 1.22;
  margin: 0;
  color: inherit;
}

.page-contact .contact-sec__lede {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  margin: 14px 0 20px;
  max-width: 68ch;
  color: var(--ink);
}

.page-contact .contact-sec--navy .contact-sec__lede {
  color: rgba(251, 248, 242, 0.86);
}

.page-contact .contact-sec__foot {
  font-family: var(--font-body);
  font-size: 0.94rem;
  margin: 20px 0 0;
  color: var(--sea-700);
}

.page-contact .contact-sec__foot a {
  color: var(--sea-800);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 4px;
}

.page-contact .contact-sec__foot a:hover {
  color: var(--amber);
}

.page-contact .contact-sec__foot a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* 图片 */
.page-contact .contact-figure {
  margin: 0 0 22px;
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--hairline);
  object-fit: cover;
}

.page-contact .contact-figure--dark img {
  border-color: rgba(169, 190, 207, 0.28);
}

.page-contact .contact-figure__cap {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--line);
  margin: 10px 0 0;
}

.page-contact .contact-figure--dark .contact-figure__cap {
  color: var(--mist);
}

/* 步骤 */
.page-contact .route-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .route-list__item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hairline);
}

.page-contact .route-list__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .route-list__num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--amber);
  padding-top: 4px;
  flex: 0 0 auto;
}

.page-contact .route-list__title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  margin: 0 0 4px;
  color: var(--ink);
}

.page-contact .route-list__text {
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.8;
  margin: 0;
  color: var(--ink);
}

/* 提示条 */
.page-contact .note-bar {
  margin-top: 20px;
  background: var(--paper);
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 16px;
}

.page-contact .contact-sec--sand .note-bar {
  background: rgba(251, 248, 242, 0.75);
}

.page-contact .note-bar p {
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.78;
  margin: 6px 0 0;
  color: var(--ink);
}

.page-contact .note-bar__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--sea-700);
}

.page-contact .note-bar a {
  color: var(--sea-800);
  text-decoration: underline;
  text-decoration-color: var(--amber);
  text-underline-offset: 3px;
}

/* 折叠条目 */
.page-contact .accordion__trigger {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--hairline-dark);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-contact .accordion__trigger:hover {
  border-color: var(--amber);
  background: #fffdf8;
}

.page-contact .accordion__trigger:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-contact .accordion__index {
  font-family: var(--font-mono);
  color: var(--amber);
}

.page-contact .accordion__panel p {
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--ink);
  margin: 0;
}

.page-contact .accordion__item + .accordion__item {
  margin-top: 10px;
}

/* 联系渠道 */
.page-contact .contact-channel-grid {
  display: grid;
  gap: 14px;
}

.page-contact .contact-channel {
  border: 1px solid rgba(169, 190, 207, 0.3);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  background: rgba(6, 24, 38, 0.42);
  min-width: 0;
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.page-contact .contact-channel:hover {
  border-color: var(--amber);
  background: rgba(6, 24, 38, 0.62);
}

.page-contact .contact-channel__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--mist);
  margin: 0 0 8px;
}

.page-contact .contact-channel__value {
  font-family: var(--font-mono);
  font-size: clamp(0.92rem, 2vw, 1.02rem);
  line-height: 1.6;
  color: var(--paper);
  margin: 0;
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__note {
  font-family: var(--font-body);
  font-size: 0.86rem;
  line-height: 1.75;
  color: rgba(169, 190, 207, 0.96);
  margin: 10px 0 0;
}

.page-contact .contact-sec--navy .contact-figure {
  margin: 22px 0 0;
}

/* 准备清单 */
.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .prep-list__label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 16px;
  background: var(--sand);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-contact .prep-list__label:hover {
  border-color: var(--amber);
}

.page-contact .prep-list__check {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--amber);
  cursor: pointer;
}

.page-contact .prep-list__check:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-contact .prep-list__text {
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--ink);
  transition: color 0.2s ease;
}

.page-contact .prep-list__text strong {
  color: var(--sea-800);
}

.page-contact .prep-list__check:checked + .prep-list__text {
  color: var(--line);
}

.page-contact .prep-list__check:checked + .prep-list__text strong {
  color: var(--line);
}

/* 三条路径 */
.page-contact .contact-path-grid {
  display: grid;
  gap: 14px;
}

.page-contact .contact-path {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: var(--paper);
  border: 1px solid var(--hairline-dark);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .contact-path:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(6, 24, 38, 0.08);
}

.page-contact .contact-path:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-contact .contact-path__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--amber);
}

.page-contact .contact-path__title {
  font-family: var(--font-display);
  font-size: 1.06rem;
  line-height: 1.35;
  color: var(--sea-800);
}

.page-contact .contact-path__text {
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .contact-path__link {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--sea-700);
}

.page-contact .contact-path__link::after {
  content: " →";
  color: var(--amber);
}

/* 服务范围 */
.page-contact .contact-scope {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.page-contact .contact-scope__block {
  border-left: 2px solid var(--hairline-dark);
  padding-left: 16px;
}

.page-contact .contact-scope__block:hover {
  border-left-color: var(--amber);
}

.page-contact .contact-scope__title {
  font-family: var(--font-display);
  font-size: 1.04rem;
  margin: 0 0 6px;
  color: var(--sea-800);
}

.page-contact .contact-scope__block p {
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.85;
  margin: 0;
  color: var(--ink);
  max-width: 62ch;
}

.page-contact .contact-scope__tail {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.page-contact .contact-scope__tail p {
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.8;
  margin: 0;
  color: var(--sea-700);
  max-width: 46ch;
}

/* 响应式 */
@media (min-width: 700px) {
  .page-contact .contact-channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .contact-scope__block:first-child {
    grid-column: 1 / -1;
  }
}

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

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

@media (min-width: 980px) {
  .page-contact .contact-body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

  .page-contact .contact-index {
    position: sticky;
    top: 24px;
  }

  .page-contact .contact-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-contact .contact-index__item + .contact-index__item {
    margin-top: 2px;
  }

  .page-contact .contact-index__link {
    display: flex;
    width: 100%;
    border: 0;
    border-left: 2px solid var(--hairline);
    border-radius: 0;
    padding: 9px 10px;
    white-space: normal;
    font-size: 0.88rem;
  }

  .page-contact .contact-index__link:hover {
    border-left-color: var(--amber);
    background: rgba(217, 154, 43, 0.08);
  }
}

@media (min-width: 1120px) {
  .page-contact .contact-scope {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-scope__block:first-child {
    grid-column: auto;
  }
}

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

  .page-contact .contact-path:hover {
    transform: none;
  }
}
<<<END>>>