.page-contact {
  --contact-line: 2px solid var(--line-strong);
  color: var(--text);
}

.page-contact .breadcrumbs {
  padding-top: clamp(18px, 3vw, 34px);
}

.page-contact .contact-hero {
  padding: clamp(20px, 3.4vw, 42px) 0 clamp(24px, 3vw, 42px);
  border-bottom: var(--contact-line);
}

.page-contact .contact-hero .eyebrow {
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(30px, 5.2vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 12px 0 18px;
  max-width: 22ch;
}

.page-contact .contact-hero .lede {
  max-width: 64ch;
  color: var(--text-dim);
}

.page-contact .hero-facts {
  list-style: none;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: var(--contact-line);
}

.page-contact .hero-facts li {
  background: var(--ink-2);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .fact-num {
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1;
  color: var(--cyan);
}

.page-contact .hero-facts li:nth-child(2) .fact-num { color: var(--magenta); }
.page-contact .hero-facts li:nth-child(3) .fact-num { color: var(--orange); }
.page-contact .hero-facts li:nth-child(4) .fact-num { color: var(--green); }

.page-contact .fact-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-dim);
}

.page-contact .section {
  padding: clamp(38px, 5.2vw, 76px) 0;
}

.page-contact .section + .section {
  padding-top: 0;
}

.page-contact .section-head {
  margin-bottom: clamp(20px, 3vw, 34px);
  border-left: 3px solid var(--magenta);
  padding-left: 14px;
}

.page-contact .section-num {
  display: block;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--orange);
  margin-bottom: 6px;
}

.page-contact .section-head h2 {
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 36px);
  line-height: 1.15;
  margin: 0 0 8px;
}

.page-contact .section-head .note {
  margin: 0;
  color: var(--text-dim);
  max-width: 58ch;
}

/* 三条通道：错落面板 */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-contact .channel-panel {
  background: var(--panel);
  border: var(--contact-line);
  box-shadow: var(--shadow-hard);
  padding: clamp(18px, 2.4vw, 26px);
  transition: box-shadow var(--dur) ease, transform var(--dur) ease;
}

.page-contact .channel-panel:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 0 rgba(33, 231, 208, 0.22);
}

.page-contact .channel-panel h3 {
  font-family: var(--font-head);
  font-size: clamp(18px, 1.9vw, 22px);
  line-height: 1.3;
  margin: 14px 0 10px;
}

.page-contact .channel-panel > p {
  margin: 0 0 18px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .channel-panel--content {
  border-color: var(--cyan);
}

.page-contact .channel-panel--tech {
  border-color: var(--orange);
}

.page-contact .channel-meta {
  margin: 0;
  display: grid;
  gap: 12px;
  border-top: 1px dashed var(--line-strong);
  padding-top: 16px;
}

.page-contact .channel-meta dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .channel-meta dd {
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .channel-figure {
  margin: clamp(26px, 4vw, 46px) 0 0;
  border: var(--contact-line);
  background: var(--ink-2);
  box-shadow: var(--shadow-mag);
}

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

/* 四步流程带 */
.page-contact .flow-band {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-strong);
  border: var(--contact-line);
}

.page-contact .flow-band li {
  background: var(--ink-2);
  padding: clamp(18px, 2.4vw, 26px);
  border-top: 3px solid transparent;
  transition: background var(--dur) ease, border-color var(--dur) ease;
}

.page-contact .flow-band li:hover {
  background: var(--panel);
  border-top-color: var(--cyan);
}

.page-contact .flow-band li:nth-child(2):hover { border-top-color: var(--magenta); }
.page-contact .flow-band li:nth-child(3):hover { border-top-color: var(--orange); }
.page-contact .flow-band li:nth-child(4):hover { border-top-color: var(--green); }

.page-contact .flow-num {
  display: block;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1;
  color: var(--cyan);
  opacity: 0.9;
  margin-bottom: 14px;
}

.page-contact .flow-band li:nth-child(2) .flow-num { color: var(--magenta); }
.page-contact .flow-band li:nth-child(3) .flow-num { color: var(--orange); }
.page-contact .flow-band li:nth-child(4) .flow-num { color: var(--green); }

.page-contact .flow-band h3 {
  font-family: var(--font-head);
  font-size: clamp(16px, 1.7vw, 20px);
  margin: 0 0 10px;
}

.page-contact .flow-band p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* 渠道 + 反馈材料 */
.page-contact .reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-contact .reach-card {
  background: var(--panel);
  border: var(--contact-line);
  border-left: 4px solid var(--cyan);
  padding: clamp(20px, 2.6vw, 30px);
}

.page-contact .reach-card h3 {
  font-family: var(--font-head);
  font-size: clamp(18px, 2vw, 24px);
  margin: 0 0 18px;
}

.page-contact .contact-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-list li {
  display: grid;
  gap: 6px;
  border-bottom: 1px dashed var(--line-strong);
  padding-bottom: 14px;
}

.page-contact .contact-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .contact-key {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--grey);
}

.page-contact .contact-value {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-contact .contact-value.mono {
  font-size: 17px;
  color: var(--cyan);
}

.page-contact .reach-card .note {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-contact .icp-line {
  color: var(--grey);
  letter-spacing: 0.04em;
}

.page-contact .feedback-card {
  background: var(--paper);
  color: var(--ink-deep);
  border: 2px solid var(--ink-deep);
  box-shadow: 8px 8px 0 0 rgba(255, 138, 43, 0.38);
  padding: clamp(20px, 2.8vw, 34px);
}

.page-contact .feedback-card h3 {
  font-family: var(--font-head);
  font-size: clamp(19px, 2.2vw, 26px);
  line-height: 1.25;
  margin: 0 0 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink-deep);
}

.page-contact .feedback-lede {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.75;
  color: #3B3029;
}

.page-contact .feedback-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: fb;
}

.page-contact .feedback-list li {
  position: relative;
  padding-left: 30px;
  font-size: 15px;
  line-height: 1.7;
  counter-increment: fb;
}

.page-contact .feedback-list li::before {
  content: counter(fb, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
  background: var(--ink-deep);
  padding: 2px 5px;
  line-height: 1.2;
}

.page-contact .feedback-figure {
  margin: 0 0 20px;
  border: 2px solid var(--ink-deep);
  background: var(--ink-2);
}

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

.page-contact .feedback-more {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #3B3029;
}

.page-contact .feedback-more a {
  color: var(--ink-deep);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

.page-contact .feedback-more a:hover {
  color: var(--magenta);
  text-decoration-color: var(--magenta);
}

/* 常见问题 */
.page-contact .faq-list {
  display: grid;
  gap: 12px;
}

.page-contact .faq-item {
  background: var(--ink-2);
  border: var(--contact-line);
  transition: border-color var(--dur) ease;
}

.page-contact .faq-item[open] {
  border-color: var(--cyan);
}

.page-contact .faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  font-family: var(--font-head);
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.4;
  color: var(--text);
}

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

.page-contact .faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--orange);
  flex: none;
}

.page-contact .faq-item[open] summary::after {
  content: "–";
  color: var(--cyan);
}

.page-contact .faq-item p {
  margin: 0;
  padding: 0 20px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* 收尾引导 */
.page-contact .cta-section {
  padding-bottom: clamp(48px, 6vw, 88px);
}

.page-contact .cta-panel {
  background: linear-gradient(120deg, rgba(33, 231, 208, 0.14), rgba(255, 63, 164, 0.16) 58%, rgba(255, 138, 43, 0.14));
  border: var(--contact-line);
  box-shadow: var(--shadow-mag);
  padding: clamp(24px, 4vw, 48px);
}

.page-contact .cta-panel h2 {
  font-family: var(--font-head);
  font-size: clamp(22px, 3vw, 34px);
  margin: 0 0 12px;
}

.page-contact .cta-panel p {
  margin: 0 0 22px;
  max-width: 60ch;
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 640px) {
  .page-contact .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .channel-panel--brand { margin-top: 34px; }
  .page-contact .channel-panel--content { margin-top: 0; }
  .page-contact .channel-panel--tech { margin-top: 66px; }

  .page-contact .flow-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .reach-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 8fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-hero h1 {
    max-width: 18ch;
  }
}