.page-contact {
  --ct-edge: clamp(16px, 4vw, 48px);
  --ct-slate: rgba(12, 31, 51, 0.72);
  background: var(--ink-abyss);
  color: var(--paper);
  padding-top: var(--header-h);
  font-family: var(--font-cjk);
}

/* ---------- 首屏：斜切色块 ---------- */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(26px, 5vw, 52px) 0 clamp(66px, 12vw, 140px);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 86% 4%, rgba(53, 242, 192, 0.2), rgba(53, 242, 192, 0) 58%),
    linear-gradient(162deg, var(--ink-deep) 0%, #08192b 68%, var(--ink-abyss) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 56%, 0 100%);
}

.page-contact .ct-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-contact .ct-hero-title {
  margin: clamp(10px, 2vw, 18px) 0 0;
  font-size: clamp(30px, 6.6vw, 76px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.01em;
  max-width: 17ch;
  text-wrap: balance;
}

.page-contact .ct-hero-lead {
  margin: clamp(14px, 2.4vw, 24px) 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .ct-hero-facts {
  list-style: none;
  margin: clamp(24px, 4vw, 42px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-contact .ct-hero-facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 14px;
  border: 1px solid var(--line-hair);
  border-radius: 999px;
  background: var(--ink-glass);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--paper-dim);
  backdrop-filter: blur(8px);
}

.page-contact .ct-hero-facts .num {
  font-size: 16px;
  font-weight: 700;
  color: var(--volt);
}

/* ---------- 通用区块标题 ---------- */
.page-contact .ct-title {
  margin: 0 0 clamp(12px, 2vw, 18px);
  font-size: clamp(21px, 3.2vw, 32px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

/* ---------- 对角分割双区 ---------- */
.page-contact .ct-split {
  position: relative;
  isolation: isolate;
  padding: clamp(34px, 6vw, 76px) 0 clamp(40px, 7vw, 88px);
}

.page-contact .ct-split::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(12, 31, 51, 0.92) 0%, rgba(6, 18, 31, 0) 68%),
    radial-gradient(78% 62% at 84% 10%, rgba(31, 169, 138, 0.15), rgba(31, 169, 138, 0) 72%);
  clip-path: polygon(0 0, 100% 3.4%, 100% 100%, 0 96.6%);
}

.page-contact .ct-split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

.page-contact .ct-list-note {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper-dim);
}

/* ---------- 联系清单卡片 ---------- */
.page-contact .ct-tickets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .ct-ticket {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2.4vw, 24px);
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line-hair);
  border-radius: var(--radius);
  background: var(--ink-glass);
  backdrop-filter: blur(10px);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--volt-dim);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-ticket-body h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 700;
  line-height: 1.35;
}

.page-contact .ct-ticket-body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .ct-ticket-body p:last-child {
  margin-bottom: 0;
}

.page-contact .ct-ticket-meta {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line-hair);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-contact .ct-ticket-meta .num {
  font-family: var(--font-mono);
  color: var(--volt);
}

/* 02 号：珊瑚橙标记，默认高亮 */
.page-contact .ct-ticket--focus {
  border-color: rgba(255, 107, 74, 0.5);
  background:
    linear-gradient(135deg, rgba(255, 107, 74, 0.14) 0%, rgba(12, 31, 51, 0.76) 48%, rgba(12, 31, 51, 0.76) 100%);
  box-shadow: 0 30px 72px -44px rgba(255, 107, 74, 0.6);
}

.page-contact .ct-ticket--focus .ct-num {
  color: var(--coral);
}

.page-contact .ct-ticket:target {
  border-color: var(--coral);
  box-shadow: 0 0 0 1px rgba(255, 107, 74, 0.55), 0 34px 80px -46px rgba(255, 107, 74, 0.75);
}

.page-contact .ct-flag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  padding: 4px 11px;
  border: 1px solid rgba(255, 107, 74, 0.55);
  border-radius: 999px;
  background: rgba(255, 107, 74, 0.16);
  color: var(--coral);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-contact .ct-ticket-media {
  margin: clamp(14px, 2vw, 20px) 0 0;
}

.page-contact .ct-ticket-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line-hair);
  border-radius: var(--radius-sm);
}

/* ---------- 右侧路径区 ---------- */
.page-contact .ct-route {
  position: relative;
}

.page-contact .ct-route-map {
  display: block;
  width: 100%;
  max-width: 330px;
  height: auto;
  margin: 0 0 clamp(14px, 2vw, 20px);
  color: var(--volt);
}

.page-contact .ct-steps {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 30px);
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-hair);
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-dim);
}

.page-contact .ct-steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .ct-steps .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--volt);
}

.page-contact .ct-copybox {
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line-hair);
  border-radius: var(--radius);
}

.page-contact .ct-copyline {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.8vw, 17px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-copy-rule {
  display: block;
  height: 1px;
  margin: 18px 0;
  background: var(--line-hair);
}

.page-contact .ct-copy-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--paper-dim);
}

.page-contact .ct-route-jump {
  margin-top: 18px;
}

/* ---------- 渠道与时效 ---------- */
.page-contact .ct-channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(20px, 3.4vw, 38px);
  border-radius: var(--radius);
}

.page-contact .ct-channel {
  padding-left: 16px;
  border-left: 2px solid rgba(53, 242, 192, 0.5);
}

.page-contact .ct-channel--time {
  border-left-color: rgba(255, 194, 75, 0.6);
}

.page-contact .ct-channel .eyebrow {
  color: var(--paper-dim);
}

.page-contact .ct-channel-value {
  margin: 6px 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 21px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel p:not(.ct-channel-value) {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper-dim);
}

/* ---------- 地址与备案 ---------- */
.page-contact .ct-infobar {
  display: grid;
  gap: 6px 22px;
  margin-bottom: 12px;
  padding: clamp(16px, 2.4vw, 22px) clamp(18px, 3vw, 30px);
  border: 1px solid var(--line-hair);
  border-radius: var(--radius);
  background: var(--ink-deep);
}

.page-contact .ct-infobar-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--volt-dim);
}

.page-contact .ct-infobar-val {
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.75;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-infobar-val.num {
  font-weight: 700;
}

.page-contact .ct-details {
  margin-top: clamp(16px, 2.4vw, 24px);
  padding-top: 16px;
  border-top: 1px solid var(--line-hair);
}

.page-contact .ct-details summary {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--volt);
}

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

.page-contact .ct-details summary::before {
  content: "+";
  display: inline-block;
  width: 18px;
  height: 18px;
  line-height: 17px;
  text-align: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 12px;
}

.page-contact .ct-details[open] summary::before {
  content: "−";
}

.page-contact .ct-details p {
  margin: 14px 0 0;
  max-width: 70ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--paper-dim);
}

/* ---------- 后续路径链接 ---------- */
.page-contact .ct-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-links a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: clamp(14px, 2vw, 18px) clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line-hair);
  border-radius: var(--radius);
  background: rgba(12, 31, 51, 0.42);
  color: var(--paper);
  font-size: 15px;
  line-height: 1.65;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ct-links a::after {
  content: "→";
  flex: none;
  font-family: var(--font-mono);
  color: var(--volt);
}

.page-contact .ct-links a:hover,
.page-contact .ct-links a:focus-visible {
  border-color: var(--volt-dim);
  color: var(--volt);
  transform: translateX(4px);
}

/* ---------- 底部横幅 ---------- */
.page-contact .ct-banner {
  margin-top: clamp(20px, 4vw, 48px);
  overflow: hidden;
  clip-path: polygon(0 5%, 100% 0, 100% 100%, 0 100%);
}

.page-contact .ct-banner-figure {
  position: relative;
  margin: 0;
}

.page-contact .ct-banner-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-contact .ct-banner-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 18, 31, 0.08) 0%, rgba(6, 18, 31, 0.76) 100%);
  pointer-events: none;
}

.page-contact .ct-banner-cap {
  position: absolute;
  left: var(--ct-edge);
  right: var(--ct-edge);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 1;
  max-width: 46ch;
  margin: 0;
  color: var(--paper);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-contact .ct-infobar {
    grid-template-columns: 116px minmax(0, 1fr);
    align-items: baseline;
  }

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

  .page-contact .ct-banner-figure img {
    aspect-ratio: 16 / 5;
  }
}

@media (min-width: 980px) {
  .page-contact .ct-split-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.85fr);
    gap: clamp(32px, 4vw, 68px);
    align-items: start;
  }

  .page-contact .ct-route {
    padding-left: clamp(24px, 3vw, 40px);
    border-left: 1px solid var(--line-hair);
  }

  .page-contact .ct-channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-ticket,
  .page-contact .ct-links a,
  .page-contact .ct-route-map {
    transition: none;
  }

  .page-contact .ct-links a:hover,
  .page-contact .ct-links a:focus-visible {
    transform: none;
  }
}
</main>