.page-contact {
  --pc-pad: clamp(1.1rem, 2.6vw, 1.9rem);
  --pc-border: 2px solid var(--line-strong);
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-contact .section {
  padding-block: clamp(2.4rem, 6vw, 4.2rem);
}

.page-contact .section-lead {
  max-width: 62ch;
  margin: 0.6rem 0 1.6rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
}

.page-contact h2 {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 4.4vw, 2.9rem);
  line-height: 1.08;
  letter-spacing: 0.005em;
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 84% -14%, rgba(45, 226, 230, 0.18), transparent 56%),
    linear-gradient(180deg, var(--ink-950), var(--ink-900));
  padding-block: clamp(2.1rem, 6.5vw, 4.6rem) clamp(1.9rem, 5vw, 3.4rem);
}

.page-contact .contact-hero__inner {
  position: relative;
  min-width: 0;
}

.page-contact .contact-hero h1 {
  margin: 0.7rem 0 0;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.35rem, 8.4vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  max-width: 58ch;
  margin: 1.15rem 0 0;
  font-size: clamp(0.98rem, 2vw, 1.08rem);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .mail-focus {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem 1.4rem;
  max-width: 46rem;
  margin-top: clamp(1.4rem, 3.4vw, 2.2rem);
  padding: clamp(0.9rem, 2vw, 1.25rem) clamp(1rem, 2.4vw, 1.5rem);
  border: 2px solid var(--orange);
  background: linear-gradient(100deg, rgba(255, 106, 26, 0.16), rgba(255, 106, 26, 0.03));
  box-shadow: var(--shadow-hard);
}

.page-contact .mail-focus__body {
  min-width: 0;
}

.page-contact .mail-focus__label {
  display: block;
  margin-bottom: 0.32rem;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange-300);
}

.page-contact .mail-focus__address {
  display: inline-block;
  font-size: clamp(1rem, 2.4vw, 1.32rem);
  letter-spacing: 0.01em;
  color: var(--paper);
  text-decoration: none;
  word-break: break-all;
}

.page-contact .mail-focus__address:hover,
.page-contact .mail-focus__address:focus-visible {
  color: var(--cyan);
}

.page-contact .contact-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.6rem;
  margin-top: clamp(1.7rem, 4vw, 2.6rem);
  padding-top: 1.1rem;
  border-top: 1px dashed var(--line-strong);
}

.page-contact .contact-toc .toc-title {
  width: 100%;
  margin: 0 0 0.3rem;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-toc .toc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.34rem 0.7rem;
  border: 1px solid var(--line-strong);
  font-size: 0.82rem;
  text-decoration: none;
  color: var(--muted);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .contact-toc .toc-link span {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .contact-toc .toc-link:hover {
  border-color: var(--cyan);
  color: var(--paper);
}

.page-contact .contact-toc .toc-link[aria-current="true"] {
  border-color: var(--orange);
  background: rgba(255, 106, 26, 0.14);
  color: var(--paper);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channels {
  background: var(--ink-900);
}

.page-contact .channels__layout {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.page-contact .channels__body {
  min-width: 0;
}

.page-contact .contact-cards {
  display: grid;
  gap: 1rem;
}

.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: var(--pc-pad);
  border: var(--pc-border);
  background: var(--ink-800);
}

.page-contact .contact-card--primary {
  border-color: var(--orange);
  background: linear-gradient(158deg, rgba(255, 106, 26, 0.18), var(--ink-800) 68%);
}

.page-contact .contact-card__label {
  font-size: 0.67rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-card--primary .contact-card__label {
  color: var(--orange-300);
}

.page-contact .contact-card__value {
  margin: 0;
  font-size: clamp(0.98rem, 2.2vw, 1.12rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
  text-decoration: none;
  word-break: break-word;
}

.page-contact a.contact-card__value:hover,
.page-contact a.contact-card__value:focus-visible {
  color: var(--cyan);
}

.page-contact .contact-card__value--num {
  font-family: var(--font-mono);
  font-size: clamp(1.08rem, 2.6vw, 1.32rem);
  letter-spacing: 0.04em;
}

.page-contact .contact-card__value--addr {
  font-size: clamp(0.96rem, 2vw, 1.05rem);
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .channels__media {
  margin: 0;
  border: var(--pc-border);
  background: var(--ink-800);
  min-width: 0;
}

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

/* ---------- 邮件模板 ---------- */
.page-contact .template {
  border-block: 1px solid var(--line);
  background:
    linear-gradient(180deg, var(--ink-950), var(--ink-950) 60%, var(--ink-900));
}

.page-contact .template__layout {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.page-contact .template__body {
  min-width: 0;
}

.page-contact .mail-details {
  border: var(--pc-border);
  background: var(--ink-800);
  margin-bottom: 0.85rem;
}

.page-contact .mail-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
}

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

.page-contact .mail-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--orange);
}

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

.page-contact .mail-details summary:hover {
  color: var(--paper);
}

.page-contact .mail-template {
  margin: 0;
  padding: 1rem 1.1rem 1.3rem;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
  color: var(--paper);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  overflow-x: auto;
  max-width: 100%;
}

.page-contact .template__hint {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .template__media {
  margin: 0;
  border: var(--pc-border);
  background: var(--ink-800);
  min-width: 0;
}

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

/* ---------- 支持范围 ---------- */
.page-contact .scope__grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.6rem;
}

.page-contact .scope-card {
  padding: var(--pc-pad);
  border: var(--pc-border);
  background: var(--ink-800);
}

.page-contact .scope-card--paper {
  border-color: var(--paper);
  background: var(--paper);
  color: var(--ink-950);
}

.page-contact .scope-card h3 {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.28rem;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .scope-card--paper h3 {
  color: var(--ink-950);
}

.page-contact .scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.72rem;
}

.page-contact .scope-list li {
  position: relative;
  padding-left: 1.45rem;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 0.6rem;
  height: 0.6rem;
  border: 2px solid var(--cyan);
}

.page-contact .scope-card--paper .scope-list li {
  color: rgba(4, 17, 31, 0.78);
}

.page-contact .scope-card--paper .scope-list li::before {
  border-color: var(--orange);
}

.page-contact .scope-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 常见场景 ---------- */
.page-contact .scenarios {
  background: var(--ink-950);
  border-block: 1px solid var(--line);
}

.page-contact .scenario-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .scenario {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.95rem;
  padding: 1.05rem 0.25rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: background 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-contact .scenario:hover,
.page-contact .scenario:focus-visible {
  background: rgba(45, 226, 230, 0.07);
  padding-left: 0.85rem;
}

.page-contact .scenario__index {
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-contact .scenario__body {
  min-width: 0;
}

.page-contact .scenario__title {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .scenario__desc {
  display: block;
  margin-top: 0.22rem;
  font-size: 0.83rem;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .scenario__go {
  font-size: 1rem;
  color: var(--cyan);
}

/* ---------- 发送须知 ---------- */
.page-contact .notice {
  display: grid;
  gap: 0.95rem;
  max-width: 62rem;
  padding: clamp(1.25rem, 3.4vw, 2.2rem);
  border: 2px solid var(--alert);
  background: rgba(229, 72, 77, 0.08);
}

.page-contact .notice h2 {
  margin: 0;
}

.page-contact .notice p {
  margin: 0;
  max-width: 68ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .notice a {
  color: var(--cyan);
  text-underline-offset: 0.2em;
}

.page-contact .notice a:hover {
  color: var(--paper);
}

/* ---------- 继续自助 ---------- */
.page-contact .more-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-contact .more-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem 1.15rem 1.25rem;
  border: var(--pc-border);
  background: var(--ink-800);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-contact .more-card:hover,
.page-contact .more-card:focus-visible {
  border-color: var(--orange);
  transform: translateY(-2px);
}

.page-contact .more-card__idx {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .more-card__title {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .more-card__desc {
  font-size: 0.83rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .more-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .channels__layout {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-contact .template__layout {
    grid-template-columns: minmax(0, 1.24fr) minmax(0, 0.76fr);
    align-items: center;
  }

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

  .page-contact .channels__media {
    position: sticky;
    top: 1.5rem;
  }
}

@media (min-width: 1040px) {
  .page-contact .more-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>