.page-contact {
  --pc-cut: 30px;
  padding-bottom: clamp(36px, 6vw, 80px);
  background:
    radial-gradient(58% 38% at 88% 2%, rgba(53, 214, 230, .07), transparent 70%),
    radial-gradient(46% 34% at 4% 14%, rgba(240, 164, 58, .06), transparent 72%),
    var(--ink);
}

.page-contact .breadcrumb {
  padding-top: clamp(18px, 3vw, 34px);
  margin-bottom: clamp(12px, 2vw, 20px);
}

/* ---------- 首屏左右分屏 ---------- */
.page-contact .contact-stage {
  padding-block: clamp(6px, 1.4vw, 14px) clamp(34px, 5vw, 60px);
}

.page-contact .contact-stage-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 32px);
}

.page-contact .contact-stage-left {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 3.2vw, 44px);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--amber);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%);
}

.page-contact .stage-texture {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-contact .stage-texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  filter: saturate(.85) contrast(1.08);
}

.page-contact .stage-texture::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(14, 17, 22, .95) 0%, rgba(9, 11, 14, .93) 58%, rgba(7, 8, 10, .99) 100%);
}

.page-contact .stage-body {
  position: relative;
  z-index: 1;
}

.page-contact h1 {
  margin: 10px 0 0;
  font-family: var(--font-cond);
  font-size: clamp(1.85rem, 4.6vw, 3rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-contact .contact-intro {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .contact-channels {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .channel {
  padding: clamp(15px, 2vw, 22px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .channel:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .channel-key {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--dim);
}

.page-contact .channel-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.55rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-hint {
  margin: 8px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 右栏工单 ---------- */
.page-contact .contact-stage-right {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
  align-content: start;
}

.page-contact .contact-ticket {
  padding: clamp(20px, 2.6vw, 32px);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--cyan);
  background: linear-gradient(180deg, var(--panel-2) 0%, var(--panel) 100%);
}

.page-contact h2 {
  margin: 8px 0 0;
  font-family: var(--font-cond);
  font-size: clamp(1.28rem, 2.4vw, 1.72rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .ticket-lede {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .ticket-flow {
  list-style: none;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ticket-flow > li {
  position: relative;
  padding-left: 16px;
}

.page-contact .ticket-flow > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(240, 164, 58, .75), rgba(43, 50, 61, .25));
}

.page-contact .ticket-step {
  border: 1px solid var(--line-soft);
  background: rgba(23, 27, 34, .55);
  padding: 0 clamp(12px, 1.6vw, 16px);
  transition: border-color .2s ease, background .2s ease;
}

.page-contact .ticket-step[open] {
  border-color: rgba(240, 164, 58, .5);
  background: rgba(23, 27, 34, .9);
}

.page-contact .ticket-step summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

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

.page-contact .ticket-step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--amber);
}

.page-contact .ticket-step[open] summary::after {
  content: "−";
}

.page-contact .ticket-step summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .step-no {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .ticket-step p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .contact-ticket-visual {
  margin: 0;
}

.page-contact .contact-ticket-visual .media-frame {
  max-height: 400px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.page-contact .contact-ticket-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-ticket-visual .media-caption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--dim);
}

/* ---------- 响应与服务 ---------- */
.page-contact .contact-service {
  margin-top: clamp(6px, 1.4vw, 14px);
  padding-block: clamp(34px, 5vw, 62px);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(90deg, rgba(240, 164, 58, .055) 0%, transparent 42%);
}

.page-contact .service-lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .service-stats {
  list-style: none;
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
}

.page-contact .service-stat {
  background: var(--panel);
  padding: clamp(16px, 2vw, 24px);
}

.page-contact .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--amber);
}

.page-contact .stat-label {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .service-stat p {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 地址 ---------- */
.page-contact .contact-address {
  padding-block: clamp(34px, 5vw, 64px);
}

.page-contact .address-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
}

.page-contact .address-text p {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .address-card {
  padding: clamp(18px, 2.4vw, 30px);
  border: 1px solid var(--line-soft);
  border-right: 3px solid var(--cyan);
  background: linear-gradient(200deg, var(--panel-2) 0%, var(--panel) 100%);
}

.page-contact .address-list {
  margin: 0;
  display: grid;
}

.page-contact .address-row {
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .address-row:first-child {
  padding-top: 0;
}

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

.page-contact .address-row dt {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--dim);
}

.page-contact .address-row dd {
  margin: 3px 0 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .address-row dd.mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: -.01em;
}

/* ---------- 相关入口 ---------- */
.page-contact .contact-next {
  padding-block: clamp(30px, 4.5vw, 56px) clamp(20px, 3vw, 40px);
}

.page-contact .next-links {
  list-style: none;
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-contact .next-item {
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  background: var(--panel);
  transition: border-color .2s ease, background .2s ease;
}

.page-contact .next-item:hover {
  border-color: rgba(53, 214, 230, .55);
  background: var(--panel-2);
}

.page-contact .next-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 230, .45);
  padding-bottom: 2px;
}

.page-contact .next-link:hover {
  color: var(--cyan);
}

.page-contact .next-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .next-item p {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .service-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 720px) {
  .page-contact .next-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

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

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .ticket-step,
  .page-contact .next-item {
    transition: none;
  }
}
<<<END>>>