.page-contact {
  --ct-shadow: 0 18px 38px rgba(0, 0, 0, .5);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

/* 面包屑 */
.page-contact .contact-crumb {
  padding: .9rem 0 0;
}
.page-contact .crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--mist);
}
.page-contact .crumb-list li {
  display: flex;
  align-items: center;
  gap: .4rem;
}
.page-contact .crumb-list li + li::before {
  content: "/";
  color: rgba(201, 162, 39, .55);
}
.page-contact .crumb-list a {
  color: var(--mist);
  text-decoration: none;
  transition: color .2s ease;
}
.page-contact .crumb-list a:hover,
.page-contact .crumb-list a:focus-visible {
  color: var(--gold-lit);
}
.page-contact .crumb-list [aria-current="page"] {
  color: var(--gold);
}

/* 章节标题基线 */
.page-contact h2 {
  margin: .6rem 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.8vw, 2.3rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-contact h3 {
  margin: 0 0 .5rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--gold-lit);
}

/* 首屏：服务台式封面 */
.page-contact .contact-hero {
  position: relative;
  margin-top: .9rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}
.page-contact .hero-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}
.page-contact .hero-veil img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
}
.page-contact .hero-veil::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(180deg, rgba(7, 7, 11, .5) 0 2px, transparent 2px 5px),
    linear-gradient(104deg, rgba(7, 7, 11, .97) 0%, rgba(7, 7, 11, .84) 46%, rgba(7, 7, 11, .5) 100%);
}
.page-contact .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.25rem);
  padding: clamp(2.25rem, 6vw, 4.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}
.page-contact .hero-copy h1 {
  margin: .7rem 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2rem, 7.4vw, 3.85rem);
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--paper);
  text-shadow: 0 0 28px rgba(201, 162, 39, .3);
}
.page-contact .hero-copy .lede {
  margin: 1.15rem 0 0;
  max-width: 34rem;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  line-height: 1.85;
  color: rgba(241, 230, 207, .82);
}
.page-contact .hero-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem .85rem;
  margin-top: 1.6rem;
}
.page-contact .status-lamp {
  width: .58rem;
  height: .58rem;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(61, 255, 162, .14), 0 0 14px rgba(61, 255, 162, .7);
  animation: ct-breathe 2.8s ease-in-out infinite;
}
.page-contact .hero-status-note {
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--mist);
}
@keyframes ct-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

/* 三个入口卡 */
.page-contact .hero-desk {
  display: grid;
  gap: .9rem;
  align-content: start;
}
.page-contact .desk-card {
  position: relative;
  overflow: hidden;
  padding: 1.15rem 1.15rem 1.25rem 1.45rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--panel-2) 0%, var(--panel) 72%);
  box-shadow: var(--ct-shadow);
}
.page-contact .desk-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--tiger), rgba(201, 162, 39, .9) 60%, transparent);
}
.page-contact .desk-card--mail::before {
  background: linear-gradient(180deg, var(--gold-lit), rgba(201, 162, 39, .8) 60%, transparent);
}
.page-contact .desk-card--ticket::before {
  background: linear-gradient(180deg, var(--neon), rgba(53, 214, 255, .7) 60%, transparent);
}
.page-contact .desk-kind {
  margin: 0;
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--tiger);
}
.page-contact .desk-card--mail .desk-kind {
  color: var(--gold-lit);
}
.page-contact .desk-card--ticket .desk-kind {
  color: var(--neon);
}
.page-contact .desk-card .desk-title {
  margin: .35rem 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.08rem;
  line-height: 1.4;
  color: var(--paper);
}
.page-contact .desk-num {
  margin: .7rem 0 0;
  font-size: clamp(1.02rem, 3.4vw, 1.3rem);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--gold-lit);
  word-break: break-all;
  user-select: all;
  -webkit-user-select: all;
}
.page-contact .desk-desc {
  margin: .6rem 0 0;
  font-size: .88rem;
  line-height: 1.72;
  color: rgba(168, 164, 184, .95);
}
.page-contact .desk-tip {
  margin: .55rem 0 0;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .08em;
  color: rgba(53, 214, 255, .78);
}
.page-contact .desk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: .95rem;
  width: 100%;
}

/* 反馈前准备 */
.page-contact .contact-prep {
  padding: clamp(2.5rem, 6vw, 4.25rem) 0;
}
.page-contact .contact-prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 2.75rem);
}
.page-contact .prep-lede {
  margin: 1rem 0 0;
  font-size: .95rem;
  line-height: 1.82;
  color: rgba(168, 164, 184, .95);
}
.page-contact .prep-base {
  display: grid;
  gap: .5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .prep-base li {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding: .62rem .85rem;
  border-left: 2px solid rgba(201, 162, 39, .38);
  background: linear-gradient(90deg, rgba(18, 18, 26, .92), rgba(18, 18, 26, 0));
  font-size: .9rem;
  line-height: 1.62;
  color: var(--paper);
}
.page-contact .prep-base .mono {
  font-size: .72rem;
  color: var(--tiger);
}

/* 反馈类型切换 */
.page-contact .prep-switch {
  position: relative;
}
.page-contact .kit-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.page-contact .kit-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1rem;
}
.page-contact .kit-tab {
  display: inline-flex;
  align-items: center;
  padding: .48rem 1rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  background: rgba(18, 18, 26, .85);
  color: var(--mist);
  font-size: .84rem;
  cursor: pointer;
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}
.page-contact .kit-tab:hover {
  color: var(--gold-lit);
  border-color: rgba(201, 162, 39, .55);
}
.page-contact #kit-switch:checked ~ .kit-tabs [for="kit-switch"],
.page-contact #kit-restore:checked ~ .kit-tabs [for="kit-restore"],
.page-contact #kit-low:checked ~ .kit-tabs [for="kit-low"] {
  background: linear-gradient(120deg, var(--gold-lit), var(--gold));
  border-color: var(--gold-lit);
  color: #14140c;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(201, 162, 39, .25);
}
.page-contact #kit-switch:focus-visible ~ .kit-tabs [for="kit-switch"],
.page-contact #kit-restore:focus-visible ~ .kit-tabs [for="kit-restore"],
.page-contact #kit-low:focus-visible ~ .kit-tabs [for="kit-low"] {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-contact .kit-panel {
  display: none;
  padding: 1.25rem 1.15rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(23, 23, 34, .95), rgba(18, 18, 26, .95));
}
.page-contact #kit-switch:checked ~ .kit-panels .kit-panel--switch,
.page-contact #kit-restore:checked ~ .kit-panels .kit-panel--restore,
.page-contact #kit-low:checked ~ .kit-panels .kit-panel--low {
  display: block;
}
.page-contact .kit-panel > p {
  margin: .5rem 0 0;
  font-size: .9rem;
  line-height: 1.78;
  color: rgba(168, 164, 184, .95);
}
.page-contact .kit-list {
  display: grid;
  gap: .55rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .kit-list li {
  display: grid;
  grid-template-columns: 1.4rem 1fr;
  gap: .6rem;
  align-items: baseline;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--paper);
}
.page-contact .kit-list .mono {
  font-size: .74rem;
  color: var(--tiger);
}

/* 服务时段与响应 */
.page-contact .contact-sla {
  padding: clamp(2.5rem, 6vw, 4.25rem) 0;
  border-top: 1px solid var(--line-soft);
  background: radial-gradient(85% 120% at 100% 0%, rgba(201, 162, 39, .1), transparent 62%);
}
.page-contact .sla-lede {
  margin: 1rem 0 0;
  max-width: 44rem;
  font-size: .95rem;
  line-height: 1.82;
  color: rgba(168, 164, 184, .95);
}
.page-contact .sla-rail {
  display: grid;
  gap: .7rem;
  margin: 1.9rem 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .sla-step {
  position: relative;
  padding: 2.2rem .95rem .95rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: rgba(18, 18, 26, .78);
}
.page-contact .sla-dot {
  position: absolute;
  top: .9rem;
  left: .95rem;
  width: .62rem;
  height: .62rem;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: var(--ink);
  box-shadow: 0 0 10px rgba(201, 162, 39, .55);
}
.page-contact .sla-step:first-child .sla-dot {
  border-color: var(--neon);
  background: var(--neon);
  box-shadow: 0 0 14px rgba(61, 255, 162, .65);
}
.page-contact .sla-step h3 {
  margin: 0 0 .35rem;
  font-family: var(--font-sans);
  font-size: .98rem;
  font-weight: 700;
  color: var(--paper);
}
.page-contact .sla-step p {
  margin: 0;
  font-size: .85rem;
  line-height: 1.72;
  color: rgba(168, 164, 184, .95);
}
.page-contact .sla-cards {
  display: grid;
  gap: .9rem;
  margin-top: 1.2rem;
}
.page-contact .sla-card {
  padding: 1.2rem 1.15rem 1.3rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: linear-gradient(170deg, var(--panel-2), var(--panel));
}
.page-contact .sla-num {
  margin: .75rem 0 0;
  font-size: clamp(1.4rem, 4vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--gold-lit);
}
.page-contact .sla-text {
  margin: .45rem 0 0;
  font-size: .88rem;
  line-height: 1.74;
  color: rgba(168, 164, 184, .95);
}

/* 黑龙江专席 */
.page-contact .contact-heilong {
  padding: clamp(2.5rem, 6vw, 4.25rem) 0;
  border-top: 1px solid var(--line-soft);
}
.page-contact .heilong-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
}
.page-contact .heilong-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
}
.page-contact .heilong-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.page-contact .heilong-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 7, 11, 0) 42%, rgba(7, 7, 11, .86) 100%);
  pointer-events: none;
}
.page-contact .heilong-cap {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: .95rem;
  z-index: 1;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: rgba(61, 255, 162, .85);
}
.page-contact .heilong-copy > p {
  margin: 1rem 0 0;
  font-size: .95rem;
  line-height: 1.82;
  color: rgba(241, 230, 207, .8);
}
.page-contact .heilong-meta {
  display: grid;
  gap: .55rem;
  margin: 1.35rem 0 0;
}
.page-contact .heilong-meta > div {
  display: grid;
  grid-template-columns: 5.2rem 1fr;
  gap: .7rem;
  align-items: baseline;
  padding: .55rem .8rem;
  border-left: 2px solid rgba(61, 255, 162, .4);
  background: linear-gradient(90deg, rgba(18, 18, 26, .9), rgba(18, 18, 26, 0));
}
.page-contact .heilong-meta dt {
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--mist);
}
.page-contact .heilong-meta dd {
  margin: 0;
  font-size: .9rem;
  line-height: 1.6;
  color: var(--paper);
}
.page-contact .heilong-note {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: rgba(53, 214, 255, .8);
}

/* 邮件模板 */
.page-contact .contact-tpl {
  padding: clamp(2.5rem, 6vw, 4.25rem) 0;
  border-top: 1px solid var(--line-soft);
}
.page-contact .tpl-lede {
  margin: 1rem 0 0;
  max-width: 46rem;
  font-size: .95rem;
  line-height: 1.82;
  color: rgba(168, 164, 184, .95);
}
.page-contact .tpl-list {
  display: grid;
  gap: .8rem;
  margin-top: 1.8rem;
}
.page-contact .tpl {
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: rgba(18, 18, 26, .9);
  transition: border-color .2s ease;
}
.page-contact .tpl[open] {
  border-color: rgba(201, 162, 39, .5);
}
.page-contact .tpl-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .5rem .85rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
}
.page-contact .tpl-summary::-webkit-details-marker {
  display: none;
}
.page-contact .tpl-summary::after {
  content: "展开";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--gold);
}
.page-contact .tpl[open] .tpl-summary::after {
  content: "收起";
}
.page-contact .tpl-no {
  font-size: .72rem;
  color: var(--tiger);
}
.page-contact .tpl-name {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--paper);
}
.page-contact .tpl-sub {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--mist);
}
.page-contact .tpl-body {
  padding: 0 1.15rem 1.15rem;
}
.page-contact .tpl-pre {
  margin: 0;
  padding: 1rem;
  border: 1px dashed rgba(201, 162, 39, .35);
  border-radius: var(--radius-md);
  background: rgba(7, 7, 11, .85);
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.85;
  color: rgba(241, 230, 207, .92);
  white-space: pre-wrap;
  word-break: break-word;
}

/* 规则与备案 */
.page-contact .contact-legal {
  padding: clamp(2rem, 5vw, 3.25rem) 0 clamp(1.5rem, 4vw, 2.5rem);
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(7, 7, 11, 0), rgba(201, 162, 39, .07));
}
.page-contact .legal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.page-contact .legal-copy > p {
  margin: .9rem 0 0;
  font-size: .92rem;
  line-height: 1.82;
  color: rgba(168, 164, 184, .95);
}
.page-contact .legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}
.page-contact .legal-links a {
  display: inline-flex;
  padding: .48rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--gold-lit);
  font-size: .83rem;
  text-decoration: none;
  transition: background .2s ease, border-color .2s ease;
}
.page-contact .legal-links a:hover,
.page-contact .legal-links a:focus-visible {
  background: rgba(201, 162, 39, .14);
  border-color: var(--gold-lit);
}
.page-contact .legal-icp {
  margin: 1.1rem 0 0;
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--mist);
}

/* 桌面布局 */
@media (min-width: 760px) {
  .page-contact .sla-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

@media (min-width: 860px) {
  .page-contact .legal-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: start;
  }
  .page-contact .hero-desk {
    padding-top: 1.2rem;
    padding-right: 1rem;
  }
  .page-contact .desk-card:nth-child(1) {
    transform: rotate(-1.1deg);
  }
  .page-contact .desk-card:nth-child(2) {
    transform: translateX(.85rem) translateY(-.7rem) rotate(.7deg);
  }
  .page-contact .desk-card:nth-child(3) {
    transform: translateX(.2rem) translateY(-1.4rem) rotate(-.5deg);
  }
  .page-contact .heilong-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-prep-grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .status-lamp {
    animation: none;
  }
  .page-contact .desk-card {
    transform: none;
  }
}
<<<END>>>