.page-contact {
  --ct-edge: 18px;
  padding-bottom: 8px;
  overflow-x: hidden;
}

/* 顶部地域与时间信息条 */
.page-contact .contact-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 14px 0 16px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--silver);
}

.page-contact .contact-topbar__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(61, 255, 160, .14);
}

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

.page-contact .contact-topbar__sep {
  width: 1px;
  height: 14px;
  background: var(--line);
}

.page-contact .contact-topbar .mono {
  color: var(--neon);
  font-size: 13px;
}

/* 首屏 */
.page-contact .contact-hero {
  padding: 42px 0 38px;
}

.page-contact .contact-hero .display {
  margin: 14px 0 0;
  font-size: clamp(30px, 6vw, 56px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--bone);
  max-width: 20ch;
}

.page-contact .contact-hero__lead {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 44px;
  margin: 34px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero__facts > div {
  min-width: 0;
}

.page-contact .contact-hero__facts dt {
  font-size: 15px;
  color: var(--neon);
  word-break: break-word;
}

.page-contact .contact-hero__facts dd {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver);
}

/* 窄带氛围图 */
.page-contact .contact-band {
  margin: 0 0 4px;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ct-edge)), calc(100% - var(--ct-edge)) 100%, 0 100%);
}

/* 章节通用 */
.page-contact .contact-section {
  padding: 58px 0 62px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-section .section-head {
  margin-bottom: 34px;
}

/* 两张说明牌 */
.page-contact .board-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .board {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 34px 26px 26px;
  transition: border-color var(--t-fast) var(--ease);
}

.page-contact .board::after {
  content: "";
  position: absolute;
  top: 0;
  left: 26px;
  right: auto;
  width: 56px;
  height: 3px;
  background: var(--neon);
}

.page-contact .board--phone::after {
  background: var(--track);
}

.page-contact .board__index {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--silver);
}

.page-contact .board__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin: 20px 0 0;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(61, 255, 160, .06);
  color: var(--neon);
}

.page-contact .board--phone .board__icon {
  background: rgba(255, 122, 47, .08);
  color: var(--track);
}

.page-contact .board__icon svg {
  width: 22px;
  height: 22px;
}

.page-contact .board__title {
  margin: 20px 0 0;
  font-family: var(--font-editorial);
  font-size: 23px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--bone);
}

.page-contact .board__desc {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .board__value {
  margin: 24px 0 0;
  font-size: 19px;
  letter-spacing: .01em;
  color: var(--bone);
  word-break: break-all;
}

.page-contact .board__actions {
  margin: 14px 0 0;
}

.page-contact .board__meta {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

/* 发信准备 */
.page-contact .ready-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-contact .ready-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ready-list > li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ready-list > li:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .ready-list__num {
  grid-row: span 2;
  font-size: 22px;
  line-height: 1.25;
  color: var(--neon);
}

.page-contact .ready-list h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--bone);
}

.page-contact .ready-list p {
  grid-column: 2;
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .mail-template {
  min-width: 0;
  padding: 28px 24px 26px;
}

.page-contact .mail-template__title {
  margin: 10px 0 0;
  font-family: var(--font-editorial);
  font-size: 20px;
  font-weight: 600;
  color: var(--bone);
}

.page-contact .mail-template__body {
  margin: 16px 0 0;
  padding: 16px;
  max-width: 100%;
  overflow-x: auto;
  background: rgba(11, 31, 26, .78);
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--bone);
  white-space: pre-wrap;
  word-break: break-word;
}

.page-contact .mail-template .copy-btn {
  margin-top: 16px;
}

/* 内容共建 */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

.page-contact .coop-text {
  min-width: 0;
}

.page-contact .coop-text .prose {
  margin: 0;
}

.page-contact .coop-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .coop-list li {
  position: relative;
  margin: 0 0 12px;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  background: var(--neon);
}

.page-contact .coop-flow {
  margin: 20px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--track);
  background: rgba(255, 122, 47, .06);
  font-size: 15px;
  line-height: 1.8;
  color: var(--bone);
}

.page-contact .coop-links {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .coop-links a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .coop-media {
  min-width: 0;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ct-edge)), calc(100% - var(--ct-edge)) 100%, 0 100%);
}

/* 归属信息牌 */
.page-contact .origin-card {
  min-width: 0;
  padding: 32px 26px 30px;
}

.page-contact .origin-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px 32px;
  margin: 0;
}

.page-contact .origin-list > div {
  min-width: 0;
}

.page-contact .origin-list dt {
  font-size: 13px;
  letter-spacing: .04em;
  color: #5B6B64;
}

.page-contact .origin-list dd {
  margin: 7px 0 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--pitch);
  word-break: break-word;
}

.page-contact .origin-card .mono {
  font-size: 16px;
  color: var(--neon-ink);
}

.page-contact .origin-note {
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(11, 31, 26, .14);
  font-size: 14px;
  line-height: 1.85;
  color: #43514B;
}

/* 常见场景 */
.page-contact .scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .scene-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

.page-contact .scene-item__num {
  font-size: 14px;
  color: var(--silver);
  transition: color var(--t-fast) var(--ease);
}

.page-contact .scene-item__body {
  min-width: 0;
}

.page-contact .scene-item h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--bone);
}

.page-contact .scene-item p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .scene-item p a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .scene-item .tag {
  justify-self: start;
  white-space: nowrap;
}

.page-contact .scene-item:hover .scene-item__num {
  color: var(--neon);
}

@media (hover: hover) {
  .page-contact .scene-item:hover {
    background: rgba(61, 255, 160, .04);
  }
}

/* 结尾提示 */
.page-contact .contact-closing {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 8px 0 56px;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ct-edge)), calc(100% - var(--ct-edge)) 100%, 0 100%);
}

.page-contact .contact-closing__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--bone);
}

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

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-contact .origin-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .scene-item {
    grid-template-columns: 56px minmax(0, 1fr) auto;
    gap: 24px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .board-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-contact .ready-grid {
    grid-template-columns: 1.1fr .9fr;
    gap: 36px;
    align-items: start;
  }

  .page-contact .coop-grid {
    grid-template-columns: 1fr 1fr;
    gap: 42px;
    align-items: center;
  }

  .page-contact .contact-hero {
    padding: 56px 0 48px;
  }

  .page-contact .contact-section {
    padding: 72px 0 78px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .board,
  .page-contact .scene-item__num {
    transition: none;
  }
}