.page-contact {
  --c-gap: clamp(18px, 2.6vw, 34px);
  padding-bottom: clamp(56px, 8vw, 110px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--muted);
}
.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyan);
}
.page-contact .breadcrumb__sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  max-width: 880px;
  padding: clamp(14px, 2.4vw, 28px) 0 clamp(30px, 4.6vw, 56px);
}
.page-contact .section__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-contact .contact-hero h1 {
  margin: 12px 0 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 4.8vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--text);
}
.page-contact .contact-hero .lead {
  margin: 0;
  max-width: 720px;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 快速复制条 ---------- */
.page-contact .contact-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.page-contact .contact-quick__chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  min-height: 46px;
  padding: 8px 8px 8px 16px;
  background: linear-gradient(180deg, var(--ink-800), var(--ink-750));
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  cursor: pointer;
  text-align: left;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.page-contact .contact-quick__chip:hover {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}
.page-contact .contact-quick__chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-contact .contact-quick__label {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.page-contact .contact-quick__val {
  min-width: 0;
  font-size: 13px;
  color: var(--cyan-soft);
  overflow-wrap: anywhere;
}
.page-contact .contact-quick__act {
  flex: none;
  margin-left: 4px;
  padding: 6px 12px;
  border: 1px solid rgba(53, 230, 224, 0.34);
  border-radius: var(--radius);
  background: rgba(53, 230, 224, 0.12);
  color: var(--cyan);
  font-size: 12px;
  white-space: nowrap;
}

/* ---------- 章节骨架 ---------- */
.page-contact .section {
  margin-top: clamp(38px, 5.5vw, 74px);
}
.page-contact .chapter {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding-top: clamp(24px, 3.4vw, 42px);
  border-top: 1px solid var(--line-soft);
}
.page-contact .chapter__num {
  display: block;
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: rgba(53, 230, 224, 0.32);
}
.page-contact .chapter__num::after {
  content: "";
  display: block;
  width: 32px;
  height: 2px;
  margin-top: 12px;
  background: var(--cyan);
}
.page-contact .chapter__body {
  min-width: 0;
}
.page-contact .chapter__body > .section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  margin-bottom: 16px;
}
.page-contact .section__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-contact .section__note {
  margin: 0;
  padding: 3px 10px;
  border: 1px solid rgba(255, 122, 50, 0.36);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
}
.page-contact .prose {
  margin: 0 0 16px;
  max-width: 74ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
}
.page-contact .prose:last-child {
  margin-bottom: 0;
}
.page-contact .prose a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 224, 0.4);
  transition: border-color var(--dur) var(--ease);
}
.page-contact .prose a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 时段刻度 ---------- */
.page-contact .hourscale {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-750));
  overflow: hidden;
}
.page-contact .hourscale__row {
  display: flex;
  align-items: stretch;
  min-height: 64px;
}
.page-contact .hourscale__seg {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 12px 8px;
  text-align: center;
  font-size: 12px;
  line-height: 1.4;
}
.page-contact .hourscale__seg--idle {
  flex: 1 1 0;
  color: var(--muted);
  font-size: 11px;
  background-image: repeating-linear-gradient(135deg, rgba(27, 58, 84, 0.4) 0 2px, transparent 2px 9px);
}
.page-contact .hourscale__seg--open {
  flex: 9 1 0;
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.02em;
  background: linear-gradient(100deg, var(--cyan) 0%, var(--cyan-soft) 100%);
}
.page-contact .hourscale__labels {
  display: flex;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 响应节奏 ---------- */
.page-contact .rhythm {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .rhythm li {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 13px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(15, 34, 51, 0.62);
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}
.page-contact .rhythm li > .dot {
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  display: block;
  background: var(--cyan);
}
.page-contact .rhythm li > .dot--ok {
  background: var(--green);
}
.page-contact .rhythm li > .dot--cyan {
  background: var(--cyan);
}
.page-contact .rhythm li > .dot--live {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 50, 0.16);
}
.page-contact .rhythm strong {
  color: var(--text);
  font-weight: 700;
}

/* ---------- 联系渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
  margin: 26px 0 0;
}
.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  min-width: 0;
  padding: clamp(22px, 2.6vw, 32px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  border-radius: var(--radius);
  background: linear-gradient(158deg, var(--ink-800) 0%, var(--ink-750) 100%);
  box-shadow: 7px 7px 0 -1px var(--ink-900), 7px 7px 0 0 var(--line);
}
.page-contact .channel:nth-of-type(2) {
  border-top-color: var(--violet);
}
.page-contact .channel__name {
  margin: 4px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
}
.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.5vw, 17px);
  letter-spacing: 0.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}
.page-contact .channel__desc {
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 图片框 ---------- */
.page-contact .channel-visual {
  margin: 30px 0 0;
}
.page-contact .media-frame {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
}
.page-contact .media-frame__inner {
  position: relative;
  overflow: hidden;
}
.page-contact .media-frame__inner img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-contact .media-frame__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 问题分类标签 ---------- */
.page-contact .tabs {
  margin-top: 24px;
}
.page-contact .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.page-contact .tabs__tab {
  appearance: none;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-800);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  cursor: pointer;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .tabs__tab:hover {
  color: var(--text);
  background: var(--ink-700);
}
.page-contact .tabs__tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-contact .tabs__tab.is-active,
.page-contact .tabs__tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
}
.page-contact .tabs__panel {
  padding: clamp(20px, 2.4vw, 30px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--violet);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-750));
  animation: contact-fade var(--dur-slow) var(--ease);
}
.page-contact .tabs__panel[hidden] {
  display: none;
}
.page-contact .subject-label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.page-contact .subject {
  margin: 0 0 16px;
  padding: 14px 16px;
  border: 1px dashed rgba(53, 230, 224, 0.42);
  border-radius: var(--radius);
  background: rgba(53, 230, 224, 0.07);
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.5vw, 15px);
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--cyan-soft);
  overflow-wrap: anywhere;
}
@keyframes contact-fade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 企业客户 ---------- */
.page-contact .enterprise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
  margin-top: 24px;
}
.page-contact .ent {
  min-width: 0;
  padding: clamp(20px, 2.2vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(15, 34, 51, 0.78);
}
.page-contact .ent h3 {
  margin: 12px 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  color: var(--text);
}
.page-contact .ent p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 服务区域 ---------- */
.page-contact .region-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
  margin-top: 24px;
}
.page-contact .region-info {
  min-width: 0;
}
.page-contact .addr {
  margin: 0;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
  background: rgba(15, 34, 51, 0.7);
}
.page-contact .addr dt {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.page-contact .addr dd {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}
.page-contact .addr dd:last-child {
  margin-bottom: 0;
}
.page-contact .addr dd strong {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--cyan);
}
.page-contact .region-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width: 620px) {
  .page-contact .hourscale__seg--idle {
    display: none;
  }
  .page-contact .hourscale__seg--open {
    flex: 1 1 auto;
    font-size: 12px;
  }
  .page-contact .hourscale__labels {
    display: none;
  }
  .page-contact .chapter__num::after {
    width: 24px;
    margin-top: 8px;
  }
  .page-contact .channel {
    box-shadow: 5px 5px 0 -1px var(--ink-900), 5px 5px 0 0 var(--line);
  }
}

@media (min-width: 780px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .enterprise-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-contact .region-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .chapter {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: clamp(24px, 3.4vw, 52px);
  }
  .page-contact .contact-hero {
    padding-left: clamp(0px, 2vw, 28px);
  }
  .page-contact .chapter__num {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .tabs__panel {
    animation: none;
  }
  .page-contact .contact-quick__chip,
  .page-contact .tabs__tab,
  .page-contact .breadcrumb a {
    transition: none;
  }
}