.page-contact {
  background: var(--ink);
  color: var(--text);
  overflow-x: hidden;
}

/* ---------- 首屏：超大邮箱锚点 + 错位联系卡 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink);
  padding: clamp(20px, 3vw, 30px) 0 clamp(44px, 7vw, 84px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -22%;
  width: min(720px, 92vw);
  height: min(720px, 92vw);
  background:
    repeating-linear-gradient(115deg, rgba(63, 224, 200, 0.10) 0 1px, transparent 1px 16px),
    var(--pine);
  transform: rotate(8deg);
  z-index: -1;
  pointer-events: none;
}

.page-contact .contact-hero .breadcrumbs {
  margin-bottom: clamp(22px, 4vw, 44px);
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.page-contact .hero-grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

.page-contact .hero-main h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 6.2vw, 3.35rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--paper-warm);
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-contact .hero-lede {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: clamp(0.9375rem, 2.4vw, 1.0625rem);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .mail-anchor {
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: clamp(18px, 3vw, 26px);
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .mail-anchor__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--clay-soft);
}

.page-contact .mail-anchor__link {
  display: inline-block;
  align-self: flex-start;
  max-width: 100%;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.05rem, 4.3vw, 2rem);
  line-height: 1.3;
  color: var(--paper-warm);
  text-decoration: none;
  word-break: break-all;
  padding-bottom: 6px;
  border-bottom: 3px solid var(--clay);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .mail-anchor__link:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .mail-anchor__hint {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .chan-stack {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .chan-card {
  background: var(--pine);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow);
}

.page-contact .chan-card__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .chan-card__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.15rem, 3.6vw, 1.55rem);
  line-height: 1.35;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
}

.page-contact .chan-card__value:hover {
  color: var(--paper-warm);
}

.page-contact .chan-card__value--addr {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.7;
  color: var(--paper-warm);
  font-style: normal;
}

.page-contact .chan-card__meta {
  margin: 10px 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .contact-note {
  margin: 4px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--clay);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(244, 239, 227, 0.05);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 场景图 ---------- */
.page-contact .photo-band {
  padding-top: 0;
}

.page-contact .media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--pine);
}

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

.page-contact .media .media__caption {
  padding: 12px 16px;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

/* ---------- 区块头 ---------- */
.page-contact .block-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 36px);
  max-width: 68ch;
}

.page-contact .block-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.8vw, 2.1rem);
  line-height: 1.22;
  color: var(--paper-warm);
  margin: 0;
}

.page-contact .block-head p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 问题类型 + 第一句话 ---------- */
.page-contact .issues__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-contact .issues__list::-webkit-scrollbar {
  height: 4px;
}

.page-contact .issues__list::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 2px;
}

.page-contact .issues .tabs__tab {
  flex: 0 0 auto;
  white-space: nowrap;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-contact .issues .tabs__tab:hover {
  color: var(--paper-warm);
  border-color: var(--teal);
}

.page-contact .issues .tabs__tab[aria-selected="true"] {
  background: var(--clay);
  border-color: var(--clay);
  color: var(--paper-warm);
  font-weight: 600;
}

.page-contact .tabs__panel[hidden] {
  display: none;
}

.page-contact .issue-panel {
  margin-top: 16px;
  padding: clamp(20px, 3.5vw, 36px);
  background: var(--paper);
  color: var(--coal);
  border: 1px solid var(--paper-shadow);
  border-radius: var(--radius);
}

.page-contact .issue-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.8vw, 1.4rem);
  line-height: 1.3;
  color: var(--coal);
}

.page-contact .issue-panel > p {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.85;
}

.page-contact .issue-panel a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .issue-panel a:hover {
  color: var(--clay);
}

.page-contact .script-box {
  padding: 14px 16px;
  margin-bottom: 16px;
  background: rgba(216, 208, 191, 0.42);
  border-left: 3px solid var(--teal);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-contact .script-box__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-contact .script-box__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--coal);
}

.page-contact .issue-panel__link {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: #4a3d33;
}

/* ---------- 提交前准备 ---------- */
.page-contact .prep {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .prep__body h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.8vw, 2.1rem);
  line-height: 1.22;
  color: var(--paper-warm);
  margin: 10px 0 12px;
}

.page-contact .prep__body > p {
  margin: 0 0 20px;
  max-width: 46em;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 51, 43, 0.55);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .checklist__item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  border: 1px solid var(--cyan);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
}

.page-contact .checklist__item input[type="checkbox"]:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .checklist__item input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid var(--ink);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-contact .checklist__item label {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text);
  cursor: pointer;
}

.page-contact .checklist__item:has(input:checked) {
  border-color: var(--teal);
  background: rgba(28, 140, 125, 0.16);
}

.page-contact .prep__aside {
  align-self: start;
  padding: clamp(20px, 3vw, 30px);
  background: var(--paper);
  color: var(--coal);
  border: 1px solid var(--paper-shadow);
  border-radius: var(--radius);
}

.page-contact .prep__aside h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--coal);
}

.page-contact .prep__aside p {
  margin: 0 0 18px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: #3a2f26;
}

.page-contact .prep__aside .btn {
  margin-bottom: 16px;
}

.page-contact .prep__links {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: #4a3d33;
}

.page-contact .prep__links a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .prep__links a:hover {
  color: var(--clay);
}

/* ---------- 响应时间刻度 ---------- */
.page-contact .sla {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .sla__item {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 51, 43, 0.92), rgba(11, 31, 26, 0.92));
}

.page-contact .sla__item:nth-child(1) {
  --sla-w: 34%;
  --sla-color: var(--cyan);
}

.page-contact .sla__item:nth-child(2) {
  --sla-w: 10%;
  --sla-color: var(--clay);
}

.page-contact .sla__item:nth-child(3) {
  --sla-w: 82%;
  --sla-color: var(--teal);
}

.page-contact .sla__bar {
  display: block;
  position: relative;
  height: 4px;
  margin-bottom: 16px;
  border-radius: 2px;
  background: var(--line);
  overflow: hidden;
}

.page-contact .sla__bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sla-w, 40%);
  border-radius: 2px;
  background: var(--sla-color, var(--cyan));
}

.page-contact .sla__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.45rem, 4vw, 1.95rem);
  line-height: 1.2;
  color: var(--paper-warm);
}

.page-contact .sla__label {
  display: block;
  margin-top: 4px;
  font-size: 0.9375rem;
  color: var(--cyan);
}

.page-contact .sla__desc {
  margin: 10px 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 合作共建 ---------- */
.page-contact .coop {
  display: grid;
  gap: 14px;
}

.page-contact .coop__item {
  padding: 22px 20px;
  background: var(--pine);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-contact .coop__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-contact .coop__item h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--paper-warm);
}

.page-contact .coop__item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .coop-subjects {
  margin-top: 20px;
  padding: 18px 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

.page-contact .coop-subjects__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--clay-soft);
}

.page-contact .coop-subjects ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.page-contact .coop-subjects li {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .visit__grid {
  display: grid;
  gap: clamp(22px, 4vw, 36px);
  align-items: stretch;
}

.page-contact .visit__card {
  padding: clamp(22px, 3.5vw, 36px);
  background: var(--paper);
  color: var(--coal);
  border: 1px solid var(--paper-shadow);
  border-radius: var(--radius);
}

.page-contact .visit__card h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.6vw, 1.9rem);
  line-height: 1.25;
  color: var(--coal);
}

.page-contact .visit__card > p {
  margin: 0 0 20px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: #3a2f26;
}

.page-contact .visit__list {
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--paper-shadow);
  padding-top: 16px;
}

.page-contact .visit__list dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-contact .visit__list dd {
  margin: 4px 0 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--coal);
}

.page-contact .visit__media {
  align-self: stretch;
}

.page-contact .visit__media img {
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .chan-card--offset {
    transform: translateX(-26px);
  }

  .page-contact .prep {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .sla {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .coop {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .visit__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

@media (min-width: 1180px) {
  .page-contact .chan-stack {
    padding-right: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero::before {
    transform: none;
  }

  .page-contact .mail-anchor__link,
  .page-contact .issues .tabs__tab,
  .page-contact .checklist__item {
    transition: none;
  }
}
<<<END>>>