.page-contact {
  --pc-gap: clamp(22px, 3.2vw, 46px);
  --pc-line: rgba(42, 48, 70, .72);
  --pc-line-soft: rgba(42, 48, 70, .42);
}

/* ---------- 面包屑与页头 ---------- */
.page-contact .breadcrumb {
  padding-top: clamp(18px, 3vw, 28px);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .16em;
  color: var(--muted);
}

.page-contact .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  color: var(--grid);
}

.page-contact .breadcrumb a {
  color: var(--purple-soft);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  color: var(--text);
}

.page-contact .contact-head {
  position: relative;
  padding: clamp(22px, 3.6vw, 40px) 0 clamp(34px, 6vw, 74px);
  overflow: hidden;
}

.page-contact .contact-head::before {
  content: "";
  position: absolute;
  inset: -30% -8% 0 -8%;
  background:
    radial-gradient(58% 68% at 10% 18%, rgba(108, 61, 255, .24), transparent 72%),
    repeating-linear-gradient(112deg, rgba(42, 48, 70, .5) 0 1px, transparent 1px 54px);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-head > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .contact-title {
  margin: 12px 0 0;
  font-size: clamp(34px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: .05em;
  max-width: 15em;
}

.page-contact .contact-lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 62ch;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--muted);
}

@media (min-width: 760px) {
  .page-contact .contact-lede {
    font-size: var(--fs-18);
  }
}

/* ---------- 通用分节标题 ---------- */
.page-contact .block-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(22px, 3vw, 38px);
}

.page-contact .block-title {
  margin: 0;
  font-size: var(--fs-24);
  font-weight: 800;
  letter-spacing: .06em;
  line-height: 1.25;
}

@media (min-width: 900px) {
  .page-contact .block-title {
    font-size: var(--fs-34);
  }
}

.page-contact .block-sub {
  margin: 0;
  max-width: 66ch;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .channel-block,
.page-contact .selfcheck-block,
.page-contact .rules-block,
.page-contact .accepted-block,
.page-contact .collab-block,
.page-contact .region-block {
  padding: clamp(30px, 4.6vw, 62px) 0;
}

/* ---------- 联系入口 ---------- */
.page-contact .channel-stack {
  display: grid;
  gap: 16px;
}

.page-contact .channel-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: clamp(20px, 2.8vw, 32px);
  background: var(--panel);
  border: 1px solid var(--pc-line);
  overflow: hidden;
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 30px;
  height: 30px;
  background: var(--ink);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  pointer-events: none;
}

.page-contact .channel-card--mail {
  background:
    linear-gradient(140deg, rgba(108, 61, 255, .2) 0%, rgba(22, 26, 42, .98) 52%),
    var(--panel);
  border-color: rgba(108, 61, 255, .5);
}

.page-contact .channel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .22em;
  color: var(--muted);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--fs-18);
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--text);
  word-break: break-word;
}

.page-contact .channel-value--addr {
  font-size: var(--fs-15);
  line-height: 1.7;
}

@media (min-width: 760px) {
  .page-contact .channel-value {
    font-size: var(--fs-24);
  }

  .page-contact .channel-value--addr {
    font-size: var(--fs-18);
  }
}

.page-contact .channel-value a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid rgba(108, 61, 255, .65);
}

.page-contact .channel-value a:hover {
  color: var(--purple-soft);
}

.page-contact .channel-note {
  margin: 0;
  max-width: 56ch;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .channel-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

.page-contact .channel-actions .btn {
  font-size: var(--fs-13);
}

.page-contact .channel-badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .16em;
  color: var(--cyan);
  background: rgba(0, 240, 200, .07);
  border: 1px solid rgba(0, 240, 200, .4);
}

@media (min-width: 900px) {
  .page-contact .channel-stack {
    grid-template-columns: 1.3fr 1fr;
  }

  .page-contact .channel-card--mail {
    grid-column: 1 / -1;
  }
}

/* ---------- 咨询路径三步 ---------- */
.page-contact .selfcheck-grid {
  display: grid;
  gap: var(--pc-gap);
}

@media (min-width: 940px) {
  .page-contact .selfcheck-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .78fr);
    align-items: start;
  }
}

.page-contact .selfcheck-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .selfcheck-item {
  position: relative;
  padding: 0 0 30px 58px;
}

.page-contact .selfcheck-item:last-child {
  padding-bottom: 0;
}

.page-contact .selfcheck-item + .selfcheck-item::before {
  content: "";
  position: absolute;
  left: 19px;
  top: -18px;
  height: 30px;
  width: 1px;
  background: linear-gradient(180deg, rgba(108, 61, 255, .1), rgba(108, 61, 255, .75));
}

.page-contact .selfcheck-num {
  position: absolute;
  left: 0;
  top: 2px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  font-weight: 600;
  color: var(--purple-soft);
  background: rgba(108, 61, 255, .14);
  border: 1px solid rgba(108, 61, 255, .6);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.page-contact .selfcheck-title {
  margin: 8px 0 8px;
  font-size: var(--fs-18);
  font-weight: 800;
  letter-spacing: .05em;
}

.page-contact .selfcheck-text {
  margin: 0;
  max-width: 58ch;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .selfcheck-text a {
  color: var(--purple-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(169, 139, 255, .45);
}

.page-contact .selfcheck-text a:hover {
  color: var(--text);
}

.page-contact .selfcheck-media {
  position: relative;
  margin: 0;
  background: var(--night);
  border: 1px solid var(--pc-line);
  overflow: hidden;
}

.page-contact .selfcheck-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(.82) contrast(1.06);
}

.page-contact .selfcheck-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, rgba(233, 236, 245, .05) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

.page-contact .selfcheck-media figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 34px 16px 12px;
  background: linear-gradient(0deg, rgba(5, 6, 10, .92), transparent);
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .14em;
  color: var(--muted);
}

/* ---------- 邮件规范 ---------- */
.page-contact .rules-grid {
  display: grid;
  gap: 20px;
}

@media (min-width: 900px) {
  .page-contact .rules-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
    gap: 32px;
  }
}

.page-contact .rule-panel {
  display: grid;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px);
}

.page-contact .rule-title {
  margin: 6px 0 0;
  font-size: var(--fs-18);
  font-weight: 800;
  letter-spacing: .05em;
}

.page-contact .rule-title:first-child {
  margin-top: 0;
}

.page-contact .rule-text {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .rule-key {
  margin: 4px 0 4px;
  justify-self: start;
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-15);
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--text);
  background: var(--purple);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.page-contact .field-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .field-list li {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-top: 1px solid var(--pc-line-soft);
}

.page-contact .field-list li:last-child {
  border-bottom: 1px solid var(--pc-line-soft);
}

@media (min-width: 620px) {
  .page-contact .field-list li {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

.page-contact .field-key {
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .18em;
  color: var(--purple-soft);
}

.page-contact .field-val {
  font-size: var(--fs-15);
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .note-bar {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  padding: 16px 18px;
  border-left: 3px solid var(--purple);
  background: rgba(108, 61, 255, .09);
  font-size: var(--fs-13);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .note-bar strong {
  color: var(--text);
  font-weight: 700;
  font-size: var(--fs-15);
}

.page-contact .note-bar a {
  color: var(--purple-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(169, 139, 255, .45);
}

/* ---------- 受理范围 ---------- */
.page-contact .accept-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .accept-item {
  display: grid;
  gap: 6px 24px;
  padding: 22px 0;
  border-top: 1px solid var(--pc-line-soft);
}

.page-contact .accept-list > li:last-child {
  border-bottom: 1px solid var(--pc-line-soft);
}

@media (min-width: 840px) {
  .page-contact .accept-item {
    grid-template-columns: 62px 200px minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-contact .accept-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--purple-soft);
}

.page-contact .accept-title {
  margin: 0;
  font-size: var(--fs-18);
  font-weight: 800;
  letter-spacing: .05em;
}

.page-contact .accept-text {
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 协作方向 ---------- */
.page-contact .collab-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .collab-item {
  position: relative;
  display: grid;
  gap: 14px;
  padding: clamp(18px, 2.6vw, 28px) clamp(18px, 2.6vw, 28px) clamp(18px, 2.6vw, 28px) clamp(20px, 2.8vw, 32px);
  background: var(--panel);
  border: 1px solid var(--pc-line);
}

.page-contact .collab-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--purple), rgba(108, 61, 255, 0));
}

@media (min-width: 880px) {
  .page-contact .collab-item {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: 34px;
  }
}

.page-contact .collab-title {
  margin: 0 0 8px;
  font-size: var(--fs-18);
  font-weight: 800;
  letter-spacing: .05em;
}

.page-contact .collab-text {
  margin: 0;
  max-width: 60ch;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .collab-label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .18em;
  color: var(--purple-soft);
}

.page-contact .collab-req p:last-child {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 运营地区 ---------- */
.page-contact .region-grid {
  display: grid;
  gap: var(--pc-gap);
}

@media (min-width: 940px) {
  .page-contact .region-grid {
    grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
    align-items: center;
  }
}

.page-contact .region-addr {
  margin: 16px 0 0;
  padding: 12px 16px;
  border-left: 2px solid var(--purple);
  background: rgba(22, 26, 42, .82);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  line-height: 1.7;
  letter-spacing: .06em;
  color: var(--text);
  word-break: break-word;
}

.page-contact .region-note {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: var(--fs-13);
  line-height: 1.85;
  color: var(--muted);
}

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

.page-contact .region-frame {
  position: relative;
  background: var(--ink);
  border: 1px solid var(--pc-line);
  overflow: hidden;
}

.page-contact .region-frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  filter: saturate(.78) contrast(1.05);
}

.page-contact .ridge {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 46%;
  display: block;
  pointer-events: none;
}

.page-contact .region-visual figcaption {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .14em;
  line-height: 1.8;
  color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    transition: none;
  }
}
</main>