.page-contact {
  --contact-glow: rgba(79, 227, 208, 0.14);
  --contact-card-bg: linear-gradient(180deg, #121C1A, #0A1512);
}

/* 面包屑 */
.page-contact .crumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 0 4px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.page-contact .crumbs a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

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

.page-contact .crumbs-sep {
  color: var(--moss);
}

.page-contact .crumbs-here {
  color: var(--text);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(38px, 6vw, 78px);
  background:
    radial-gradient(120% 90% at 88% 0%, var(--contact-glow), transparent 62%),
    linear-gradient(180deg, var(--pitch), var(--ink-night) 72%);
  border-bottom: 1px solid var(--hairline-soft);
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--hairline-cyan), transparent);
}

.page-contact .contact-hero-inner {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

.page-contact .contact-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 8.5vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 14px 0 18px;
}

.page-contact .contact-hero-lede {
  margin: 0 0 24px;
  max-width: 46ch;
  color: var(--text-dim);
  font-size: 16.5px;
  line-height: 1.75;
}

.page-contact .contact-hero-points {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .contact-hero-points li {
  position: relative;
  padding-left: 24px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.65;
}

.page-contact .contact-hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 13px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
}

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

.page-contact .contact-hero-media {
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.4);
}

/* 渠道卡片 */
.page-contact .contact-channels {
  background: var(--ink-night);
}

.page-contact .contact-channel-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .contact-channel {
  position: relative;
  padding: 28px 24px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
  background: var(--contact-card-bg);
  overflow: hidden;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-contact .contact-channel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--cyan);
}

.page-contact .contact-channel--phone::before {
  background: var(--orange);
}

.page-contact .contact-channel:hover {
  transform: translateY(-3px);
  border-color: var(--hairline-cyan);
}

.page-contact .contact-value {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 4.2vw, 25px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 16px 0 12px;
  overflow-wrap: anywhere;
}

.page-contact .contact-channel-note {
  margin: 0 0 20px;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.72;
}

.page-contact .contact-channel-foot,
.page-contact .contact-address-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

/* 复制按钮与反馈 */
.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline-cyan);
  background: rgba(79, 227, 208, 0.08);
  color: var(--cyan);
  font-family: var(--font-body);
  font-size: 13.5px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

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

.page-contact .copy-feedback {
  display: inline-block;
  min-height: 1.2em;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--amber);
}

/* 合作方向 */
.page-contact .contact-directions {
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}

.page-contact .contact-direction-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .contact-direction {
  padding: 26px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline-soft);
  background: rgba(10, 21, 18, 0.55);
  transition: border-color 0.28s var(--ease), background 0.28s var(--ease);
}

.page-contact .contact-direction:hover {
  border-color: var(--hairline-cyan);
  background: rgba(20, 51, 43, 0.6);
}

.page-contact .contact-direction-index {
  display: block;
  font-family: var(--font-num);
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--orange);
  margin-bottom: 14px;
}

.page-contact .contact-direction h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.01em;
  color: var(--text);
  margin: 0 0 10px;
}

.page-contact .contact-direction p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14.8px;
  line-height: 1.75;
}

.page-contact .contact-direction-fit {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px dashed var(--hairline);
  color: var(--silver) !important;
  font-size: 13.6px !important;
}

/* 流程 + 来信模板 */
.page-contact .contact-process {
  background: var(--ink-night);
}

.page-contact .contact-process-grid {
  display: grid;
  gap: clamp(30px, 5vw, 58px);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-contact .contact-step-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 6px 0 0 28px;
}

.page-contact .contact-step-list::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 12px;
  bottom: 26px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(79, 227, 208, 0.08));
}

.page-contact .contact-step {
  position: relative;
  padding: 0 0 30px;
}

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

.page-contact .contact-step-node {
  position: absolute;
  left: -28px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink-night);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(79, 227, 208, 0.1);
}

.page-contact .contact-step-index {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .contact-step h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: 0.01em;
  color: var(--text);
  margin: 0 0 8px;
}

.page-contact .contact-step p:not(.contact-step-index) {
  margin: 0;
  color: var(--text-dim);
  font-size: 14.8px;
  line-height: 1.74;
  max-width: 42ch;
}

/* 来信说明牌 */
.page-contact .placard {
  border-radius: var(--radius-lg);
  background: var(--cream);
  color: var(--brown);
  padding: 28px 24px;
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.36);
}

.page-contact .placard-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: 0.01em;
  color: var(--brown);
  margin: 0 0 12px;
}

.page-contact .placard-body {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.78;
  color: rgba(42, 31, 26, 0.82);
}

.page-contact .contact-template {
  font-family: var(--font-num);
  font-size: 13px;
  line-height: 1.9;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: rgba(42, 31, 26, 0.07);
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 16px 16px 18px;
  margin: 16px 0;
  color: var(--brown);
  overflow-x: auto;
  user-select: all;
}

.page-contact .contact-mailcard-foot {
  border-top: 1px dashed rgba(42, 31, 26, 0.24);
  padding-top: 14px;
  font-size: 13.6px;
}

.page-contact .contact-mailcard-media {
  margin-top: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--hairline);
}

/* 通信地址 */
.page-contact .contact-address {
  margin-top: 20px;
  padding: 24px 22px;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--hairline);
  background: rgba(18, 28, 26, 0.72);
}

.page-contact .contact-address-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--text);
  margin: 0 0 12px;
}

.page-contact .contact-address-value {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(16px, 3.4vw, 19px);
  line-height: 1.5;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .contact-address-note {
  margin: 0 0 18px;
  color: var(--text-dim);
  font-size: 14.4px;
  line-height: 1.74;
}

.page-contact .contact-visit {
  margin-top: 18px;
  border-top: 1px solid var(--hairline-soft);
  padding-top: 14px;
}

.page-contact .contact-visit summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--amber);
  padding: 4px 0;
}

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

.page-contact .contact-visit summary::before {
  content: "+";
  display: inline-block;
  width: 16px;
  color: var(--amber);
}

.page-contact .contact-visit[open] summary::before {
  content: "–";
}

.page-contact .contact-visit p {
  margin: 10px 0 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.74;
}

/* 底部橙色收束横带 */
.page-contact .contact-cta {
  background: var(--orange);
  color: var(--brown);
  padding: clamp(34px, 6vw, 60px) 0;
}

.page-contact .contact-cta-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(42, 31, 26, 0.72);
}

.page-contact .contact-cta-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 6vw, 48px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--brown);
  margin: 0 0 24px;
  max-width: 22ch;
}

.page-contact .contact-cta-lines {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .contact-cta-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding: 15px 20px;
  border-radius: var(--radius-pill);
  background: rgba(42, 31, 26, 0.13);
}

.page-contact .contact-cta-label {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(42, 31, 26, 0.7);
}

.page-contact .contact-cta-value {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: clamp(15px, 3.2vw, 19px);
  color: var(--brown);
  overflow-wrap: anywhere;
}

.page-contact .contact-cta-note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(42, 31, 26, 0.78);
  max-width: 52ch;
}

/* 桌面栅格 */
@media (min-width: 780px) {
  .page-contact .contact-channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-direction-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-cta-lines {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  }

  .page-contact .contact-process-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .contact-process-side {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 560px) {
  .page-contact .contact-step-list {
    padding-left: 24px;
  }

  .page-contact .contact-step-node {
    left: -24px;
  }

  .page-contact .contact-template {
    font-size: 12.2px;
  }

  .page-contact .contact-cta-line {
    border-radius: var(--radius-md);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-channel:hover {
    transform: none;
  }
}