.page-contact {
  --cp-cut: 26px;
  --cp-card-shadow: 6px 6px 0 rgba(28, 51, 80, 0.55);
}

.page-contact .contact-crumb {
  padding-top: 16px;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver);
}

.page-contact .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  text-decoration: underline;
}

.page-contact .section-title {
  margin: 0;
}

.page-contact .kicker {
  margin: 0 0 10px;
}

/* 首屏 */
.page-contact .contact-hero {
  padding-top: clamp(22px, 4vw, 42px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-contact .contact-hero__intro h1 {
  margin: 0;
  font-size: clamp(30px, 7vw, 56px);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.75;
  color: var(--text);
}

/* 联系信息面板 */
.page-contact .contact-panel {
  margin-top: clamp(20px, 3vw, 30px);
  border: 2px solid var(--line);
  background:
    linear-gradient(155deg, rgba(13, 27, 46, 0.96), rgba(7, 17, 31, 0.9)),
    var(--panel);
  box-shadow: var(--cp-card-shadow);
}

.page-contact .contact-panel__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: clamp(14px, 2.2vw, 20px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-panel__row:last-child {
  border-bottom: 0;
}

.page-contact .contact-panel__label {
  flex: 1 0 100%;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-contact .contact-panel__phone {
  font-size: clamp(26px, 6vw, 40px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .contact-panel__phone:hover,
.page-contact .contact-panel__phone:focus-visible {
  color: var(--orange);
}

.page-contact .contact-panel__mail {
  font-size: clamp(13px, 3vw, 16px);
  color: var(--paper);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.page-contact .contact-panel__mail:hover,
.page-contact .contact-panel__mail:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-panel__addr {
  margin: 0;
  flex: 1 1 220px;
  font-size: clamp(14px, 2.6vw, 16px);
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .contact-panel__hint {
  flex: 1 0 100%;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver);
}

.page-contact .contact-panel .copy-btn {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 6px 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--silver);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-contact .contact-panel .copy-btn:hover,
.page-contact .contact-panel .copy-btn:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .contact-panel .copy-btn[data-copied="true"] {
  border-color: var(--green);
  color: var(--green);
}

.page-contact .contact-panel__status {
  flex: 0 0 auto;
  min-height: 1em;
  font-size: 11px;
  color: var(--green);
}

/* 首屏右栏 */
.page-contact .contact-hero__aside {
  display: grid;
  gap: clamp(16px, 3vw, 22px);
  align-content: start;
}

.page-contact .contact-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-tabs {
  padding: clamp(16px, 2.6vw, 24px);
  border: 2px solid var(--line);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(123, 97, 255, 0.16), transparent 60%),
    var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cp-cut)), calc(100% - var(--cp-cut)) 100%, 0 100%);
}

.page-contact .contact-tabs__title {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-contact .contact-tabs .tabs__list {
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 10px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-contact .contact-tabs .tab {
  flex: 0 0 auto;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--silver);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-contact .contact-tabs .tab:hover,
.page-contact .contact-tabs .tab:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .contact-tabs .tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-contact .contact-tabs .tab-panel {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  margin-top: 4px;
}

.page-contact .contact-tabs .tab-panel h3 {
  margin: 0 0 10px;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .contact-tabs .tab-panel ul {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .tab-panel__tip {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--silver);
}

.page-contact .tab-panel__route {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .tab-panel__route:hover,
.page-contact .tab-panel__route:focus-visible {
  text-decoration: underline;
}

/* 合作类型 */
.page-contact .contact-coop__lede {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-contact .coop-grid {
  display: grid;
  gap: clamp(14px, 2.4vw, 20px);
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(16px, 2.4vw, 22px);
  border: 2px solid var(--line);
  background: rgba(7, 17, 31, 0.62);
  box-shadow: var(--cp-card-shadow);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .coop-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 6px 10px 0 rgba(55, 242, 214, 0.16);
}

.page-contact .coop-card__idx {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .coop-card h3 {
  margin: 0;
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .coop-card .coop-card__meta {
  margin-top: auto;
  padding-top: 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--silver);
}

/* 服务覆盖 */
.page-contact .contact-cover__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-contact .contact-cover__text {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .cover-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .cover-stats li {
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

.page-contact .cover-stats .num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.1;
  color: var(--cyan);
}

.page-contact .cover-stats .lab {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver);
}

.page-contact .coverage-graph {
  display: block;
  width: 100%;
  height: auto;
  max-width: 460px;
  margin: 22px 0 0;
}

.page-contact .coverage-graph .cov-line line {
  stroke: var(--line);
  stroke-width: 1;
}

.page-contact .coverage-graph .cov-hub {
  fill: var(--orange);
}

.page-contact .coverage-graph .cov-node {
  fill: var(--cyan);
}

.page-contact .coverage-graph text {
  font-family: var(--font-mono);
  font-size: 11px;
  fill: var(--silver);
}

.page-contact .contact-cover__figure {
  margin: 0;
}

.page-contact .contact-cover__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-cover__figure figcaption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.65;
  border-left: 2px solid var(--orange);
  padding-left: 10px;
}

/* 响应说明 */
.page-contact .reply-grid {
  display: grid;
  gap: clamp(16px, 2.6vw, 22px);
  margin-top: clamp(22px, 3vw, 30px);
}

.page-contact .reply-item {
  padding-top: 14px;
  border-top: 2px solid var(--line);
}

.page-contact .reply-item h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: clamp(15px, 2.2vw, 17px);
  color: var(--paper);
}

.page-contact .reply-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(61, 220, 151, 0.16);
}

.page-contact .reply-dot--accent {
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 90, 54, 0.18);
}

.page-contact .reply-dot--violet {
  background: var(--violet);
  box-shadow: 0 0 0 3px rgba(123, 97, 255, 0.18);
}

.page-contact .reply-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
}

/* 速答 */
.page-contact .contact-faq__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-contact .contact-faq__intro p {
  margin: 12px 0 18px;
  max-width: 42ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .cf-acc {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .cf-acc details {
  padding: 12px 16px;
  border: 1px solid var(--line);
  background: rgba(7, 17, 31, 0.6);
  transition: border-color 0.2s ease;
}

.page-contact .cf-acc details[open] {
  border-color: var(--cyan);
}

.page-contact .cf-acc summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .cf-acc summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
}

.page-contact .cf-acc details[open] summary::after {
  content: "−";
  color: var(--orange);
}

.page-contact .cf-acc summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-contact .cf-acc p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

/* 结尾行动 */
.page-contact .contact-cta-wrap {
  padding-bottom: clamp(30px, 5vw, 56px);
}

.page-contact .contact-cta {
  display: grid;
  gap: 20px;
  padding: clamp(22px, 3.4vw, 38px);
  border: 2px solid var(--line);
  background:
    radial-gradient(90% 120% at 0% 100%, rgba(55, 242, 214, 0.14), transparent 62%),
    linear-gradient(120deg, var(--panel), var(--ink));
  box-shadow: 8px 8px 0 rgba(28, 51, 80, 0.5);
}

.page-contact .contact-cta__text h2 {
  margin: 0;
  font-size: clamp(22px, 4vw, 34px);
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .contact-cta__text p {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-contact .contact-cta__minor {
  font-size: 12px;
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-cta__minor:hover,
.page-contact .contact-cta__minor:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

@media (min-width: 700px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }

  .page-contact .contact-cover__grid {
    grid-template-columns: 0.95fr 1.05fr;
    align-items: center;
  }

  .page-contact .contact-faq__grid {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: start;
  }

  .page-contact .contact-cta {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: center;
  }

  .page-contact .contact-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .cf-acc details,
  .page-contact .contact-tabs .tab {
    transition: none;
  }

  .page-contact .coop-card:hover {
    transform: none;
  }
}