.page-contact {
  --contact-line: var(--archive-line);
  display: block;
}

.page-contact .contact-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(34px, 6vw, 68px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -12%;
  left: -20%;
  right: -20%;
  height: 440px;
  background: radial-gradient(58% 100% at 72% 0%, rgba(217, 178, 106, 0.15), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.page-contact .contact-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--paper-sand);
  text-wrap: balance;
}

.page-contact .contact-hero .lede {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: clamp(0.98rem, 2.4vw, 1.06rem);
  line-height: 1.85;
  color: var(--muted-paper);
}

.page-contact .contact-hero__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-hero__list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--muted-paper);
}

.page-contact .contact-hero__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--sand-gold);
  transform: rotate(45deg);
}

/* ---- 联系渠道卡 ---- */
.page-contact .channel-card {
  position: relative;
  padding: clamp(22px, 3.4vw, 32px);
  border: 1px solid var(--contact-line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(217, 178, 106, 0.09), rgba(23, 41, 63, 0.88) 46%, rgba(16, 31, 51, 0.96));
  box-shadow: 0 20px 50px -32px rgba(0, 0, 0, 0.95);
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(110, 127, 140, 0.28);
  border-radius: 2px;
  pointer-events: none;
}

.page-contact .channel-card > * {
  position: relative;
  z-index: 1;
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--sand-gold);
}

.page-contact .channel-card__title {
  margin: 8px 0 4px;
  font-family: var(--font-display);
  font-size: 1.42rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper-sand);
}

.page-contact .channel-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed rgba(110, 127, 140, 0.34);
}

.page-contact .channel-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .channel-row__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--sand-gold);
}

.page-contact .channel-row__value {
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--paper-sand);
  overflow-wrap: anywhere;
}

.page-contact .channel-row__value--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

.page-contact .channel-card .copy-btn {
  justify-self: start;
  margin-top: 4px;
  padding: 6px 15px;
  border: 1px solid rgba(255, 138, 43, 0.55);
  border-radius: 999px;
  background: transparent;
  color: var(--amber-orange);
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.24s var(--ease), color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .channel-card .copy-btn:hover,
.page-contact .channel-card .copy-btn:focus-visible {
  background: var(--amber-orange);
  border-color: var(--amber-orange);
  color: var(--ink-900);
}

/* ---- 章节通用 ---- */
.page-contact .contact-section {
  padding: clamp(34px, 5.5vw, 66px) 0;
}

.page-contact .contact-section--tint {
  background: linear-gradient(180deg, rgba(16, 31, 51, 0) 0%, rgba(16, 31, 51, 0.82) 16%, rgba(16, 31, 51, 0.82) 84%, rgba(16, 31, 51, 0) 100%);
}

.page-contact .contact-section__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3.4vw, 34px);
}

.page-contact .contact-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.8vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper-sand);
  text-wrap: balance;
}

.page-contact .contact-section__index {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4.6vw, 2.8rem);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--helan-slate);
  opacity: 0.62;
}

.page-contact .contact-section__desc {
  margin: 0 0 clamp(20px, 3.4vw, 32px);
  max-width: 60ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--muted-paper);
}

/* ---- 准备清单 ---- */
.page-contact .prepare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 46px);
}

.page-contact .prepare-media {
  margin: 0;
}

.page-contact .prepare-media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius);
  object-fit: cover;
}

.page-contact .media-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--helan-slate);
}

.page-contact .prepare-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .prepare-list li {
  position: relative;
  display: grid;
  gap: 5px;
  padding: 15px 0 15px 30px;
  border-bottom: 1px solid rgba(43, 63, 85, 0.8);
}

.page-contact .prepare-list li:first-child {
  border-top: 1px solid rgba(43, 63, 85, 0.8);
}

.page-contact .prepare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 12px;
  height: 12px;
  border: 1px solid var(--sand-gold);
  border-radius: 2px;
}

.page-contact .prepare-list__key {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--sand-gold);
}

.page-contact .prepare-list__desc {
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--muted-paper);
}

/* ---- 问题分类手风琴 ---- */
.page-contact .topic-list {
  display: grid;
  gap: 10px;
}

.page-contact .topic {
  border: 1px solid var(--contact-line);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-contact .topic[open] {
  border-color: rgba(255, 138, 43, 0.5);
  background: var(--ink-700);
}

.page-contact .topic summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .topic summary::-webkit-details-marker {
  display: none;
}

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

.page-contact .topic__index {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--sand-gold);
}

.page-contact .topic__name {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper-sand);
}

.page-contact .topic__mark {
  position: relative;
  width: 18px;
  height: 18px;
  flex: none;
}

.page-contact .topic__mark::before,
.page-contact .topic__mark::after {
  content: "";
  position: absolute;
  background: var(--helan-slate);
  transition: transform 0.24s var(--ease), background 0.24s var(--ease);
}

.page-contact .topic__mark::before {
  left: 0;
  right: 0;
  top: 8px;
  height: 1.5px;
}

.page-contact .topic__mark::after {
  top: 0;
  bottom: 0;
  left: 8px;
  width: 1.5px;
}

.page-contact .topic[open] .topic__mark::after {
  transform: scaleY(0);
}

.page-contact .topic[open] .topic__mark::before {
  background: var(--amber-orange);
}

.page-contact .topic__body {
  padding: 0 clamp(16px, 3vw, 26px) 18px;
  font-size: 0.95rem;
  line-height: 1.82;
  color: var(--muted-paper);
}

.page-contact .topic__body p {
  margin: 0 0 10px;
}

.page-contact .topic__body ul {
  margin: 0 0 12px;
  padding-left: 1.1em;
  display: grid;
  gap: 6px;
}

.page-contact .topic__body li::marker {
  color: var(--sand-gold);
}

/* ---- 流程步骤 ---- */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.page-contact .flow__step {
  position: relative;
  padding: 26px 0 10px;
  border-top: 1px solid var(--contact-line);
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 9px;
  height: 9px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--amber-orange);
  box-shadow: 0 0 0 4px rgba(255, 138, 43, 0.14);
}

.page-contact .flow__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--sand-gold);
}

.page-contact .flow__title {
  display: block;
  margin-bottom: 6px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--paper-sand);
}

.page-contact .flow__desc {
  display: block;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--muted-paper);
}

/* ---- 品牌服务条 ---- */
.page-contact .contact-strip {
  position: relative;
  margin: clamp(30px, 5vw, 54px) 0 0;
  padding: clamp(26px, 4.5vw, 50px);
  border-radius: var(--radius);
  background: var(--paper-sand);
  color: var(--ink-900);
  overflow: hidden;
}

.page-contact .contact-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(10, 21, 34, 0.055) 0 1px, transparent 1px 12px);
  pointer-events: none;
}

.page-contact .contact-strip > * {
  position: relative;
  z-index: 1;
}

.page-contact .contact-strip__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
}

.page-contact .contact-strip h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.6vw, 2.05rem);
  font-weight: 800;
  line-height: 1.24;
  color: var(--ink-900);
  text-wrap: balance;
}

.page-contact .contact-strip p {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.85;
  color: rgba(10, 21, 34, 0.78);
}

.page-contact .strip-mail {
  display: grid;
  gap: 10px;
  padding: 20px;
  border: 1px solid rgba(10, 21, 34, 0.24);
  border-radius: 2px;
  background: rgba(10, 21, 34, 0.05);
}

.page-contact .strip-mail__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(10, 21, 34, 0.58);
}

.page-contact .strip-mail__value {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2.4vw, 1.02rem);
  letter-spacing: 0.02em;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

.page-contact .contact-strip .copy-btn {
  justify-self: start;
  padding: 9px 22px;
  border: 1px solid var(--ink-900);
  border-radius: 999px;
  background: var(--ink-900);
  color: var(--paper-sand);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-contact .contact-strip .copy-btn:hover,
.page-contact .contact-strip .copy-btn:focus-visible {
  background: var(--amber-orange);
  border-color: var(--amber-orange);
  color: var(--ink-900);
}

/* ---- 地址区 ---- */
.page-contact .address-block {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius);
}

.page-contact .address-block__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .address-block__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-contact .address-block::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(115deg, rgba(10, 21, 34, 0.96) 0%, rgba(10, 21, 34, 0.86) 46%, rgba(10, 21, 34, 0.52) 100%);
}

.page-contact .address-block__body {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 36px);
  padding: clamp(24px, 4vw, 46px);
}

.page-contact .address-line__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--sand-gold);
}

.page-contact .address-line__value {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.8vw, 1.35rem);
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper-sand);
  overflow-wrap: anywhere;
}

.page-contact .address-note {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: 0.94rem;
  line-height: 1.82;
  color: var(--muted-paper);
}

.page-contact .address-facts {
  display: grid;
  gap: 0;
}

.page-contact .address-fact {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid rgba(110, 127, 140, 0.32);
}

.page-contact .address-fact:last-child {
  border-bottom: 1px solid rgba(110, 127, 140, 0.32);
}

.page-contact .address-fact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--helan-slate);
}

.page-contact .address-fact__value {
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--paper-sand);
}

/* ---- 响应式 ---- */
@media (min-width: 760px) {
  .page-contact .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 24px;
  }

  .page-contact .flow__step {
    padding: 26px 8px 14px 0;
  }
}

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

  .page-contact .prepare-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

  .page-contact .contact-section__head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 22px;
  }

  .page-contact .contact-section__index {
    justify-self: end;
  }

  .page-contact .contact-strip__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-contact .address-block__body {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .topic,
  .page-contact .topic__mark::before,
  .page-contact .topic__mark::after,
  .page-contact .copy-btn {
    transition: none;
  }
}
<<<END>>>