.page-contact {
  --pc-line: rgba(221, 227, 236, 0.16);
  --pc-line-ink: rgba(11, 13, 18, 0.13);
}

/* ---------------- 首屏 ---------------- */
.page-contact .contact-hero {
  padding-top: 28px;
}

.page-contact .breadcrumb {
  margin-bottom: 20px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--frost);
}

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

.page-contact .breadcrumb a:hover {
  color: var(--cyan);
}

.page-contact .contact-frame {
  padding: 26px 20px 30px;
  background: var(--night);
}

@media (min-width: 760px) {
  .page-contact .contact-frame {
    padding: 46px 48px 44px;
  }
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: 30px;
}

@media (min-width: 900px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

.page-contact .eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-contact .contact-h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
}

@media (min-width: 760px) {
  .page-contact .contact-h1 {
    font-size: 50px;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-h1 {
    font-size: 60px;
  }
}

.page-contact .contact-lede {
  margin: 20px 0 0;
  max-width: 620px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

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

.page-contact .hero-facts li {
  padding: 14px 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .hero-facts li:last-child {
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .hero-facts .mono {
  display: block;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-contact .hero-facts strong {
  display: block;
  margin: 7px 0 4px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .hero-facts em {
  font-style: normal;
  font-size: 13px;
  line-height: 1.6;
  color: var(--frost);
}

/* ---------------- 章节头 ---------------- */
.page-contact .chapter-head {
  margin-bottom: 24px;
}

.page-contact .chapter-title {
  margin: 0;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

@media (min-width: 760px) {
  .page-contact .chapter-title {
    font-size: 32px;
  }
}

/* ---------------- 左右分栏本体 ---------------- */
.page-contact .contact-split {
  display: grid;
}

.page-contact .contact-board {
  position: relative;
  overflow: hidden;
  padding: 30px 22px;
  background: var(--indigo);
  color: var(--paper);
}

.page-contact .contact-detail {
  padding: 30px 22px;
  background: var(--paper);
  color: var(--ink);
}

@media (min-width: 1000px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }

  .page-contact .contact-board {
    padding: 48px 46px 48px 0;
    border-right: 1px solid var(--pc-line);
  }

  .page-contact .contact-board::after {
    content: "";
    position: absolute;
    top: 32px;
    right: 0;
    bottom: 32px;
    width: 13px;
    background-image: repeating-linear-gradient(
      to bottom,
      var(--orange) 0 2px,
      transparent 2px 24px
    );
    opacity: 0.8;
  }

  .page-contact .contact-detail {
    padding: 48px 0 48px 46px;
  }
}

.page-contact .board-art {
  position: absolute;
  inset: 0;
  margin: 0;
  pointer-events: none;
}

.page-contact .board-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
}

.page-contact .contact-board > *:not(.board-art) {
  position: relative;
  z-index: 1;
}

.page-contact .board-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.page-contact .contact-rows {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-contact .contact-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .contact-row:first-child {
  border-top: 1px solid var(--pc-line);
}

@media (min-width: 560px) {
  .page-contact .contact-row {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

.page-contact .contact-key {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-contact .contact-val {
  font-size: 15px;
  line-height: 1.62;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .contact-val--mail {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.01em;
}

.page-contact .board-note {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--frost);
}

/* ---------------- 右侧纸白说明区 ---------------- */
.page-contact .detail-lead {
  margin: 0 0 24px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
}

.page-contact .channel-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .filter-btn {
  padding: 7px 15px;
  border: 1px solid var(--pc-line-ink);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.page-contact .filter-btn:hover {
  border-color: var(--orange);
  color: var(--char);
}

.page-contact .filter-btn[aria-pressed="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--char);
  font-weight: 700;
}

.page-contact .filter-count {
  margin: 12px 0 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(58, 67, 86, 0.7);
}

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

.page-contact .channel-tip {
  padding: 15px 0 15px 16px;
  border-left: 2px solid var(--orange);
  border-bottom: 1px solid var(--pc-line-ink);
}

.page-contact .channel-tip:last-child {
  border-bottom: none;
  padding-bottom: 4px;
}

.page-contact .tip-idx {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: rgba(58, 67, 86, 0.6);
}

.page-contact .channel-tip h3 {
  margin: 7px 0 7px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--char);
}

.page-contact .channel-tip p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink);
}

/* ---------------- 回复节奏 ---------------- */
.page-contact .hours-lead {
  margin: 18px 0 0;
  max-width: 720px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .hours-scale {
  margin-top: 32px;
}

.page-contact .hours-track {
  position: relative;
  height: 22px;
  background: rgba(221, 227, 236, 0.06);
  border-top: 1px solid var(--pc-line);
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .hours-band {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(
    to right,
    rgba(255, 106, 43, 0.18),
    rgba(255, 106, 43, 0.52),
    rgba(255, 106, 43, 0.18)
  );
  border-left: 2px solid var(--orange);
  border-right: 2px solid var(--orange);
  cursor: help;
}

.page-contact .hours-band::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 11px;
  background: var(--char);
  border: 1px solid var(--line-strong);
  color: var(--paper);
  font-size: 12px;
  line-height: 1.4;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s var(--ease);
}

.page-contact .hours-band:hover::after,
.page-contact .hours-band:focus::after {
  opacity: 1;
}

.page-contact .hours-labels {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--frost);
}

.page-contact .rhythm-list {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
}

@media (min-width: 760px) {
  .page-contact .rhythm-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
}

.page-contact .rhythm-list li {
  padding: 16px 0 6px;
  border-top: 1px solid var(--pc-line);
}

.page-contact .rhythm-list .mono {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .rhythm-list strong {
  display: block;
  margin: 9px 0 7px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .rhythm-list p {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--frost);
}

/* ---------------- 合作与内容协作 ---------------- */
.page-contact .partner-head {
  max-width: 720px;
}

.page-contact .partner-lead {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .partner-grid {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
}

@media (min-width: 760px) {
  .page-contact .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 44px;
  }
}

.page-contact .partner-grid li {
  padding: 18px 0 16px;
  border-top: 1px solid var(--pc-line);
}

.page-contact .partner-grid .mono {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-contact .partner-grid h3 {
  margin: 9px 0 7px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .partner-grid p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--frost);
}

.page-contact .partner-note {
  margin: 28px 0 0;
  padding: 15px 20px;
  border: 1px solid var(--pc-line);
  border-left: 2px solid var(--cyan);
  font-size: 14px;
  line-height: 1.74;
  color: var(--mist);
}

/* ---------------- 通信地址与备案 ---------------- */
.page-contact .address-art {
  margin: 24px 0 0;
  border: 1px solid var(--pc-line);
  overflow: hidden;
}

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

.page-contact .address-band {
  display: grid;
  gap: 18px;
  margin-top: 26px;
  padding: 24px 20px;
  background: var(--night);
  border: 1px solid var(--pc-line);
}

@media (min-width: 760px) {
  .page-contact .address-band {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 30px;
    align-items: center;
    padding: 30px 34px;
  }
}

.page-contact .address-mark svg {
  display: block;
  width: 54px;
  height: 54px;
}

.page-contact .address-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-contact .address-line {
  margin: 11px 0 0;
  font-size: 18px;
  line-height: 1.6;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .address-note {
  margin: 11px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--frost);
}

.page-contact .filing {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 16px 20px;
  border: 1px solid var(--pc-line);
}

@media (min-width: 760px) {
  .page-contact .filing {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 26px;
    align-items: center;
    padding: 18px 22px;
  }
}

.page-contact .filing-code {
  margin: 0;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--amber);
  white-space: nowrap;
}

.page-contact .filing-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--frost);
}

.page-contact .contact-tail {
  margin: 28px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--frost);
}

.page-contact .contact-tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 200, 0.4);
}

.page-contact .contact-tail a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}