.page-contact {
  --pc-line: 1px solid var(--ink-600);
  --pc-panel: rgba(15, 31, 61, 0.72);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: 40px 30px;
}

.page-contact .contact-hero .h1 {
  margin: 16px 0 20px;
  max-width: 15em;
}

.page-contact .contact-hero .lead {
  max-width: 42em;
  color: var(--white-100);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 联络卡 + 来信要素 ---------- */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  border: var(--pc-line);
  background: var(--ink-800);
  padding: 28px 22px;
  box-shadow: 10px 10px 0 rgba(0, 229, 212, 0.13);
}

.page-contact .contact-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  pointer-events: none;
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, rgba(10, 20, 40, 0.5), rgba(10, 20, 40, 0.95));
  pointer-events: none;
}

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

.page-contact .contact-card__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--white-100);
}

.page-contact .contact-card .contact-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-card .contact-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(31, 58, 107, 0.9);
}

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

.page-contact .contact-card .contact-key {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-500);
}

.page-contact .contact-card .contact-val {
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--white-100);
  overflow-wrap: anywhere;
}

.page-contact .contact-card .copy-btn {
  align-self: center;
  padding: 6px 12px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-pill);
  background: rgba(0, 229, 212, 0.07);
  color: var(--cyan-300);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .contact-card .copy-btn:hover {
  border-color: var(--cyan-500);
  background: rgba(0, 229, 212, 0.16);
}

.page-contact .contact-card .contact-note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist-300);
}

.page-contact .disclosure {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--ink-600);
}

.page-contact .disclosure__btn {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.page-contact .disclosure__hint {
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist-300);
}

.page-contact .disclosure__btn[aria-expanded="true"] .disclosure__hint {
  color: var(--cyan-300);
}

.page-contact .disclosure__panel {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 2px solid var(--orange-500);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-contact .disclosure__panel p {
  margin: 0;
}

.page-contact .feedback-panel {
  border: var(--pc-line);
  border-left: 3px solid var(--cyan-500);
  background: var(--pc-panel);
  padding: 26px 22px;
}

.page-contact .feedback-panel__title {
  margin: 10px 0 12px;
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.28;
  font-weight: 700;
  color: var(--white-100);
}

.page-contact .feedback-panel__intro {
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist-300);
}

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

.page-contact .check {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 2px 14px;
  align-items: start;
  padding: 15px 16px;
  border: 1px solid var(--ink-600);
  background: var(--ink-900);
  cursor: pointer;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-contact .check:hover {
  border-color: var(--cyan-500);
  transform: translateY(-2px);
}

.page-contact .check:has(.check__input:checked) {
  border-color: rgba(0, 229, 212, 0.55);
  background: var(--ink-800);
}

.page-contact .check__input {
  appearance: none;
  -webkit-appearance: none;
  grid-row: 1 / span 2;
  width: 22px;
  height: 22px;
  margin: 0;
  border: 1px solid var(--ink-600);
  background: var(--ink-700);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .check__input::after {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--ink-900);
  transform: scale(0);
  transition: transform 0.18s var(--ease);
}

.page-contact .check__input:checked {
  background: var(--cyan-500);
  border-color: var(--cyan-500);
}

.page-contact .check__input:checked::after {
  transform: scale(1);
}

.page-contact .check__input:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: 2px;
}

.page-contact .check__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 22px;
  color: var(--cyan-500);
}

.page-contact .check__body {
  grid-column: 3;
  display: grid;
  gap: 4px;
}

.page-contact .check__title {
  font-size: 16px;
  font-weight: 650;
  line-height: 1.45;
  color: var(--white-100);
}

.page-contact .check__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-contact .feedback-panel .note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--ink-600);
}

/* ---------- 归档流程 ---------- */
.page-contact .archive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

.page-contact .archive-grid__main h2 {
  margin: 12px 0 14px;
}

.page-contact .archive-grid__main .lead {
  max-width: 40em;
  color: var(--mist-300);
}

.page-contact .case-flow {
  list-style: none;
  margin: 28px 0 0;
  padding: 0 0 0 34px;
  position: relative;
}

.page-contact .case-flow::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-500), var(--ink-600) 60%, rgba(31, 58, 107, 0));
}

.page-contact .case-flow__item {
  position: relative;
  padding-bottom: 26px;
}

.page-contact .case-flow__item:last-child {
  padding-bottom: 0;
}

.page-contact .case-flow__item::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1px solid var(--cyan-500);
  background: var(--ink-900);
}

.page-contact .case-flow__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan-500);
}

.page-contact .case-flow__body h3 {
  margin: 6px 0 6px;
  font-size: 17px;
  font-weight: 650;
  line-height: 1.45;
  color: var(--white-100);
}

.page-contact .case-flow__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist-300);
}

.page-contact .archive-figure {
  margin: 0;
  border: var(--pc-line);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-contact .archive-figure figcaption {
  padding: 14px 16px;
  border-top: 1px solid var(--ink-600);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-300);
}

/* ---------- 自查三步 ---------- */
.page-contact .selfcheck {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: var(--pc-line);
}

.page-contact .selfcheck__item {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: var(--pc-line);
}

.page-contact .selfcheck__num {
  flex: 0 0 96px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange-500);
}

.page-contact .selfcheck__item h3 {
  flex: 1 1 200px;
  margin: 0;
  font-size: 17px;
  font-weight: 650;
  line-height: 1.45;
  color: var(--white-100);
}

.page-contact .selfcheck__item p {
  flex: 1 1 100%;
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist-300);
}

.page-contact .selfcheck__tail {
  margin: 24px 0 0;
  padding: 18px 20px;
  border-left: 3px solid var(--cyan-500);
  background: rgba(0, 229, 212, 0.06);
  font-size: 15px;
  line-height: 1.8;
  color: var(--white-100);
}

.page-contact .selfcheck__tail a {
  color: var(--cyan-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 合作与渠道 ---------- */
.page-contact .partner-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 26px;
}

.page-contact .partner-col {
  padding: 22px 20px;
  border: var(--pc-line);
  border-top: 3px solid var(--orange-500);
  background: var(--ink-800);
}

.page-contact .partner-col:nth-child(2) {
  border-top-color: var(--cyan-500);
}

.page-contact .partner-col .mono-label {
  display: block;
  margin-bottom: 14px;
}

.page-contact .partner-col .list-plain {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-contact .partner-col .list-plain li {
  padding-left: 16px;
  position: relative;
}

.page-contact .partner-col .list-plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 6px;
  height: 1px;
  background: var(--cyan-500);
}

.page-contact #partnership .note {
  margin: 22px 0 0;
}

.page-contact #partnership .note a {
  color: var(--cyan-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-outro {
  padding-bottom: 72px;
}

.page-contact .outro-card {
  padding: 30px 22px;
  border: var(--pc-line);
  background: linear-gradient(135deg, rgba(0, 229, 212, 0.09), rgba(255, 138, 61, 0.07) 65%, rgba(10, 20, 40, 0));
}

.page-contact .outro-card h2 {
  margin: 10px 0 12px;
  font-family: var(--font-head);
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.3;
  font-weight: 700;
  color: var(--white-100);
}

.page-contact .outro-card p {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist-300);
}

.page-contact .outro-card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-card,
  .page-contact .feedback-panel {
    padding: 32px 30px;
  }

  .page-contact .partner-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .selfcheck__item p {
    padding-left: 116px;
  }

  .page-contact .outro-card {
    padding: 38px 36px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 34px;
  }

  .page-contact .contact-card {
    position: sticky;
    top: 108px;
  }

  .page-contact .archive-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
  }

  .page-contact .contact-hero {
    padding-block: 56px 36px;
  }
}
<<<END>>>