/* =========================================================
   page-contact — 联系通道
   ========================================================= */

.page-contact {
  background: var(--arena-900);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 通用文字 ---------- */

.page-contact .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.6vw, 40px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-contact .section-head {
  max-width: 62ch;
  margin-bottom: 28px;
}

.page-contact .section-lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-muted);
}

.page-contact .text-link {
  display: inline-block;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 242, .35);
  padding-bottom: 2px;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-contact .text-link:hover,
.page-contact .text-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: 36px 40px;
  border-bottom: 1px solid var(--hairline);
  background:
    radial-gradient(120% 100% at 6% -24%, rgba(43, 227, 242, .17), transparent 58%),
    radial-gradient(82% 92% at 96% -12%, rgba(255, 122, 47, .13), transparent 60%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(36, 54, 90, .34) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 54, 90, .26) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .6), transparent 72%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .6), transparent 72%);
}

.page-contact .hero-inner {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
  font-size: 13px;
  color: var(--ink-muted);
}

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

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

.page-contact .crumb-sep {
  color: var(--steel);
}

.page-contact h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-head);
  font-size: clamp(32px, 6.4vw, 66px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-contact .contact-lede {
  max-width: 64ch;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-muted);
}

/* ---------- 通道切换区 ---------- */

.page-contact .contact-router {
  padding-block: 48px 56px;
}

.page-contact .route-figure {
  margin: 0 0 34px;
  padding: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--arena-800);
  box-shadow: var(--shadow-hair);
}

.page-contact .route-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .segmented {
  display: grid;
  gap: 26px;
}

.page-contact .segmented-track {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.page-contact .segmented-track::-webkit-scrollbar {
  height: 4px;
}

.page-contact .segmented-track::-webkit-scrollbar-thumb {
  background: var(--hairline);
  border-radius: var(--radius-pill);
}

.page-contact .seg-button {
  flex: 0 0 auto;
  scroll-snap-align: start;
  min-width: 168px;
  min-height: 44px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px 16px 13px;
  text-align: left;
  cursor: pointer;
  border: 1px solid var(--hairline);
  border-left-width: 3px;
  border-left-color: transparent;
  border-radius: var(--radius);
  background: var(--arena-800);
  color: var(--ink-muted);
  font-family: var(--font-body);
  transition:
    border-color var(--dur-fast) var(--ease),
    background-color var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease);
}

.page-contact .seg-button:hover {
  border-color: var(--steel);
  color: var(--ink);
}

.page-contact .seg-button[aria-selected="true"] {
  background: linear-gradient(100deg, rgba(43, 227, 242, .14), rgba(43, 227, 242, 0) 78%), var(--panel-700);
  border-color: var(--hairline);
  border-left-color: var(--cyan);
  color: var(--ink);
}

.page-contact .seg-num {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--steel);
}

.page-contact .seg-button[aria-selected="true"] .seg-num {
  color: var(--cyan);
}

.page-contact .seg-label {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .04em;
}

.page-contact .seg-hint {
  font-size: 12px;
  line-height: 1.5;
  color: var(--steel);
}

.page-contact .seg-button[aria-selected="true"] .seg-hint {
  color: var(--ink-muted);
}

.page-contact .seg-panel[hidden] {
  display: none;
}

.page-contact .seg-panel {
  border-top: 1px solid var(--hairline);
  padding-top: 24px;
}

.page-contact .panel-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(21px, 3vw, 27px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
}

.page-contact .panel-lede {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-muted);
}

.page-contact .channel-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .channel-points > li {
  display: grid;
  gap: 5px;
  padding-left: 16px;
  border-left: 1px solid var(--hairline);
}

.page-contact .point-key {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--green);
}

.page-contact .point-val {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .panel-foot {
  margin: 24px 0 0;
}

/* ---------- 客服值守 + 来信要点 ---------- */

.page-contact .contact-desk {
  padding-block: 52px 56px;
}

.page-contact .desk-grid {
  display: grid;
  gap: 40px;
}

.page-contact .desk-lede {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-muted);
}

.page-contact .contact-lines {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-lines > li {
  display: grid;
  gap: 6px;
  padding: 18px 18px 20px;
  background: var(--arena-900);
}

.page-contact .line-key {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink-muted);
}

.page-contact .line-val {
  font-family: var(--font-data);
  font-size: clamp(15px, 2.6vw, 18px);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
  word-break: break-all;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .line-val-cyan { color: var(--cyan); }
.page-contact .line-val-orange { color: var(--orange); }
.page-contact .line-val-plain { color: var(--ink); }

.page-contact .line-note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-muted);
}

.page-contact .brief-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
}

.page-contact .brief-lede {
  margin: 12px 0 6px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-muted);
}

.page-contact .brief-list {
  counter-reset: brief;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .brief-list > li {
  counter-increment: brief;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 2px 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-contact .brief-list > li::before {
  content: counter(brief, decimal-leading-zero);
  grid-column: 1;
  grid-row: 1 / 3;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .08em;
  color: var(--green);
}

.page-contact .brief-list strong {
  grid-column: 2;
  grid-row: 1;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .brief-list span {
  grid-column: 2;
  grid-row: 2;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-muted);
}

/* ---------- 办公地点 ---------- */

.page-contact .contact-place {
  padding-block: 52px 56px;
}

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

.page-contact .place-media {
  margin: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--arena-800);
}

.page-contact .place-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.9) contrast(1.05);
}

.page-contact .place-media figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--hairline);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-muted);
}

.page-contact .place-address {
  margin: 20px 0 0;
  padding: 18px 20px 20px;
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-size: clamp(19px, 3.2vw, 27px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: .02em;
  color: var(--ink);
  background:
    repeating-linear-gradient(135deg, rgba(147, 166, 196, .07) 0 1px, transparent 1px 13px),
    var(--panel-700);
}

.page-contact .place-note {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.page-contact .place-meta {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  margin: 22px 0 0;
  padding: 8px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
}

.page-contact .meta-key {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--steel);
}

.page-contact .meta-val {
  font-family: var(--font-data);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--green);
}

/* ---------- 合作与媒体 ---------- */

.page-contact .contact-coop {
  padding-block: 52px 56px;
}

.page-contact .coop-grid {
  display: grid;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .coop-col {
  padding: 24px 20px 26px;
  background: var(--arena-800);
}

.page-contact .coop-col h3 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink);
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .coop-list > li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-muted);
}

.page-contact .coop-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .coop-col-accent {
  background: linear-gradient(160deg, rgba(43, 227, 242, .1), rgba(43, 227, 242, 0) 72%), var(--panel-700);
}

.page-contact .coop-col-accent p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.page-contact .coop-mail {
  font-family: var(--font-data);
  font-size: 14px;
  word-break: break-all;
  color: var(--cyan) !important;
  -webkit-user-select: all;
  user-select: all;
}

/* ---------- 底部收束 ---------- */

.page-contact .contact-legal {
  border-top: 1px solid var(--hairline);
  padding-block: 20px 30px;
  background: var(--arena-800);
}

.page-contact .legal-bar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 12.5px;
  color: var(--ink-muted);
}

.page-contact .legal-meta {
  margin: 0;
  font-family: var(--font-data);
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
}

.page-contact .legal-links {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .legal-links a {
  color: var(--ink-muted);
  text-decoration: none;
}

.page-contact .legal-links a:hover,
.page-contact .legal-links a:focus-visible {
  color: var(--cyan);
}

.page-contact .legal-sep {
  color: var(--steel);
}

/* =========================================================
   断点：平板 / 桌面
   ========================================================= */

@media (min-width: 720px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .coop-col-accent {
    grid-column: 1 / -1;
  }

  .page-contact .legal-bar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding-block: 56px 64px;
  }

  .page-contact .contact-router {
    padding-block: 64px 72px;
  }

  .page-contact .route-figure {
    margin-bottom: 44px;
  }

  .page-contact .segmented {
    grid-template-columns: minmax(230px, 3fr) 7fr;
    gap: 0 48px;
    align-items: start;
  }

  .page-contact .segmented-track {
    flex-direction: column;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
    scroll-snap-type: none;
  }

  .page-contact .seg-button {
    min-width: 0;
    width: 100%;
    padding: 14px 18px 15px;
  }

  .page-contact .seg-panel,
  .page-contact .seg-panel[hidden] {
    grid-column: 2;
  }

  .page-contact .seg-panel {
    border-top: 0;
    border-left: 1px solid var(--hairline);
    padding-top: 0;
    padding-left: 40px;
    min-height: 260px;
  }

  .page-contact .seg-panel[hidden] {
    display: none;
  }

  .page-contact .contact-desk,
  .page-contact .contact-place,
  .page-contact .contact-coop {
    padding-block: 72px 80px;
  }

  .page-contact .desk-grid {
    grid-template-columns: 5fr 7fr;
    gap: 0 60px;
    align-items: start;
  }

  .page-contact .desk-right {
    padding-left: 60px;
    border-left: 1px solid var(--hairline);
  }

  .page-contact .place-grid {
    grid-template-columns: 7fr 5fr;
    gap: 0 52px;
    align-items: center;
  }

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

  .page-contact .coop-col-accent {
    grid-column: auto;
  }
}

@media (min-width: 1200px) {
  .page-contact .coop-col {
    padding: 30px 26px 32px;
  }
}

/* =========================================================
   可访问性与动效降级
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
  }
}