.page-contact {
  --pc-gap: clamp(16px, 2.2vw, 24px);
  --pc-pad: clamp(20px, 3vw, 32px);
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-contact .contact-lead {
  padding-block: clamp(18px, 3vw, 32px) clamp(24px, 4vw, 44px);
}

.page-contact .contact-lead h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.2vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--fog);
  max-width: 18em;
}

.page-contact .contact-lead-text {
  margin: 18px 0 0;
  max-width: 720px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mute);
}

.page-contact .contact-signal {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .contact-signal li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-contact .contact-signal-num {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.page-contact .contact-signal-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dim);
}

/* ---------- 联系信息板 ---------- */
.page-contact .contact-board {
  padding-block: 0 clamp(40px, 6vw, 64px);
}

.page-contact .contact-board-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .contact-main {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 2.4vw, 22px);
  min-height: 400px;
  padding: var(--pc-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-main-img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
  filter: saturate(0.75);
}

.page-contact .contact-main-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    repeating-linear-gradient(0deg, transparent 0 31px, rgba(43, 240, 194, 0.07) 31px 32px),
    repeating-linear-gradient(90deg, transparent 0 31px, rgba(43, 240, 194, 0.07) 31px 32px),
    linear-gradient(160deg, rgba(5, 26, 21, 0.62), rgba(5, 26, 21, 0.95) 62%);
}

.page-contact .contact-main-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 28px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--fog);
}

.page-contact .contact-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .contact-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mute);
}

.page-contact .contact-value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 20px);
  color: var(--fog);
  word-break: break-word;
}

.page-contact .contact-value--phone {
  font-size: clamp(34px, 8vw, 64px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.page-contact .contact-value--address {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fog);
}

.page-contact .contact-map {
  position: relative;
  height: 72px;
  margin-top: 4px;
  border: 1px solid var(--line);
  background-color: rgba(11, 42, 35, 0.72);
  background-image:
    repeating-linear-gradient(0deg, transparent 0 17px, rgba(43, 240, 194, 0.14) 17px 18px),
    repeating-linear-gradient(90deg, transparent 0 17px, rgba(43, 240, 194, 0.14) 17px 18px);
}

.page-contact .contact-map::after {
  content: "";
  position: absolute;
  left: 34%;
  top: 44%;
  width: 10px;
  height: 10px;
  background: var(--neon);
  box-shadow: 0 0 0 6px var(--neon-16);
}

.page-contact .contact-tip {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

.page-contact .contact-side {
  display: grid;
  gap: var(--pc-gap);
  align-content: start;
}

.page-contact .contact-side-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: var(--pc-pad);
}

.page-contact .contact-side-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--fog);
}

.page-contact .contact-side-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .contact-side-card .btn {
  margin-top: auto;
}

/* ---------- 咨询准备 ---------- */
.page-contact .contact-prep {
  padding-block: clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--line);
}

.page-contact .prep-head {
  max-width: 720px;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-contact .prep-head h2,
.page-contact .partners-head h2,
.page-contact .rhythm-copy h2,
.page-contact .shortcuts-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--fog);
}

.page-contact .prep-intro,
.page-contact .partners-intro,
.page-contact .rhythm-lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mute);
  max-width: 760px;
}

.page-contact .prep-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .prep-item {
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .prep-item[open] {
  background: var(--raise);
  border-color: var(--neon-32);
}

.page-contact .prep-item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .prep-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--neon);
}

.page-contact .prep-item[open] summary::after {
  content: "−";
}

.page-contact .prep-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.page-contact .prep-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--fog);
}

.page-contact .prep-body {
  padding: 0 18px 18px;
}

.page-contact .prep-body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .prep-body ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--fog);
}

.page-contact .prep-body li::marker {
  color: var(--neon);
}

/* ---------- 合作 ---------- */
.page-contact .contact-partners {
  padding-block: clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--line);
}

.page-contact .partners-head {
  max-width: 760px;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .partner-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--pc-pad);
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-contact .partner-card--venue {
  background: linear-gradient(155deg, var(--raise), var(--panel) 72%);
  border-color: var(--neon-16);
}

.page-contact .partner-num {
  font-family: var(--font-mono);
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.page-contact .partner-card--venue .partner-num {
  color: var(--neon);
}

.page-contact .partner-card--youth .partner-num {
  color: var(--violet);
}

.page-contact .partner-card--campus .partner-num {
  color: var(--track);
}

.page-contact .partner-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--fog);
}

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

.page-contact .partner-fit {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--dim);
}

.page-contact .partner-note {
  margin: var(--pc-gap) 0 0;
  padding: 16px 20px;
  border-left: 2px solid var(--track);
  background: var(--track-10);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-rhythm {
  padding-block: clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--line);
}

.page-contact .rhythm-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .rhythm-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-contact .rhythm-list li {
  position: relative;
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.page-contact .rhythm-list li::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--neon);
}

.page-contact .rhythm-key {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--neon);
}

.page-contact .rhythm-list p {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .rhythm-figure {
  margin: 0;
}

.page-contact .rhythm-figure .figure-media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.page-contact .rhythm-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .rhythm-figure .figure-caption {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- 快捷入口 ---------- */
.page-contact .contact-shortcuts {
  padding-block: clamp(40px, 6vw, 72px) clamp(20px, 4vw, 40px);
  border-top: 1px solid var(--line);
}

.page-contact .shortcuts-head {
  max-width: 640px;
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-contact .shortcut-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .shortcut {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  text-decoration: none;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color 120ms var(--ease), background-color 120ms var(--ease);
}

.page-contact .shortcut:hover,
.page-contact .shortcut:focus-visible {
  background: var(--raise);
  border-color: var(--neon);
  outline: none;
}

.page-contact .shortcut-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.page-contact .shortcut-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fog);
}

.page-contact .shortcut-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .shortcut-go {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--neon);
  transition: transform 120ms var(--ease);
}

.page-contact .shortcut:hover .shortcut-go,
.page-contact .shortcut:focus-visible .shortcut-go {
  transform: translateX(4px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .shortcut-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-signal {
    gap: 20px 48px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-board-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .contact-side {
    padding-top: 24px;
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .prep-item:nth-child(2) {
    margin-top: 28px;
  }

  .page-contact .prep-item:nth-child(3) {
    margin-top: 56px;
  }

  .page-contact .partner-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-contact .partner-card--venue {
    grid-column: span 4;
    grid-row: span 2;
  }

  .page-contact .partner-card--youth,
  .page-contact .partner-card--campus {
    grid-column: span 2;
  }

  .page-contact .rhythm-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-contact .rhythm-figure {
    margin-top: 12px;
  }
}

@media (min-width: 1180px) {
  .page-contact .shortcut-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .prep-item,
  .page-contact .shortcut,
  .page-contact .shortcut-go {
    transition: none;
  }

  .page-contact .shortcut:hover .shortcut-go,
  .page-contact .shortcut:focus-visible .shortcut-go {
    transform: none;
  }
}