.page-contact {
  --contact-cut: 16px;
  --contact-card-cut: 14px;
  background: var(--ink-1);
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .breadcrumbs {
  padding-top: clamp(18px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(30px, 5vw, 56px);
}

.page-contact .contact-hero__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(32px, 7.2vw, 74px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  color: var(--paper);
  opacity: 0.86;
}

.page-contact .contact-hero__stage {
  position: relative;
  isolation: isolate;
  margin-top: clamp(26px, 5vw, 46px);
  display: grid;
  gap: 16px;
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: -8% -4%;
  z-index: 0;
  overflow: hidden;
  opacity: 0.16;
  pointer-events: none;
}

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

.page-contact .contact-hero__track {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.page-contact .channel {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 3.4vw, 34px);
  background: linear-gradient(158deg, rgba(16, 42, 71, 0.96), rgba(8, 23, 41, 0.94));
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, var(--contact-cut) 100%, 0 calc(100% - var(--contact-cut)));
  transition: transform 0.28s var(--ease), background 0.28s var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 58px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .channel--member::before {
  background: var(--amber);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  transform: translateY(-4px);
  background: linear-gradient(158deg, rgba(22, 54, 88, 0.98), rgba(9, 26, 46, 0.96));
}

.page-contact .channel__coord {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .channel--fix .channel__coord {
  color: var(--cyan);
}

.page-contact .channel--member .channel__coord {
  color: var(--amber);
}

.page-contact .channel__title {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--paper);
}

.page-contact .channel__desc {
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.82;
}

.page-contact .channel__list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .channel__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--mist);
}

.page-contact .channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--line-strong);
}

.page-contact .channel--fix .channel__list li::before {
  background: var(--cyan);
}

.page-contact .channel--member .channel__list li::before {
  background: var(--amber);
}

.page-contact .channel__cta {
  align-self: flex-start;
  margin-top: auto;
}

.page-contact .status-dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  animation: ct-pulse 2.8s var(--ease) infinite;
}

.page-contact .status-dot--amber {
  background: var(--amber);
  animation-delay: 0.5s;
}

.page-contact .status-dot--dim {
  background: var(--mist);
  animation: none;
}

@keyframes ct-pulse {
  0% { box-shadow: 0 0 0 0 rgba(47, 224, 206, 0.42); }
  70% { box-shadow: 0 0 0 8px rgba(47, 224, 206, 0); }
  100% { box-shadow: 0 0 0 0 rgba(47, 224, 206, 0); }
}

.page-contact .hero-meta {
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 18px 0 0;
  list-style: none;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--line);
}

.page-contact .hero-meta li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 章节骨架 ---------- */
.page-contact .contact-section {
  padding: clamp(38px, 6vw, 84px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-section--last {
  padding-bottom: clamp(16px, 3vw, 32px);
}

.page-contact .section-head {
  display: grid;
  gap: 12px;
  max-width: 64ch;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-contact .section-head .coord {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-contact .section-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(23px, 3.6vw, 40px);
  line-height: 1.18;
  color: var(--paper);
}

.page-contact .section-lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 206, 0.4);
}

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

/* ---------- 联系方式工作台 ---------- */
.page-contact .contact-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-contact .workbench {
  border-top: 1px solid var(--line-strong);
}

.page-contact .contact-row {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 6px 12px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-row__idx {
  font-size: 12px;
  line-height: 1.9;
  color: var(--amber);
}

.page-contact .contact-row__label {
  margin: 0 0 6px;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .contact-row__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.6vw, 20px);
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: break-word;
  word-break: break-word;
}

.page-contact .contact-row__value--text {
  font-family: var(--font-body);
  font-size: clamp(16px, 2.4vw, 19px);
}

.page-contact .contact-row__note {
  margin: 8px 0 0;
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .contact-row__copy {
  grid-column: 2;
  justify-self: start;
  margin-top: 10px;
}

.page-contact .copy-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 7px 13px;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--cyan-dim);
  border-color: var(--cyan);
  color: var(--paper);
}

.page-contact .copy-btn[data-copied="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-0);
}

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

/* ---------- 服务时间 ---------- */
.page-contact .time-board {
  display: grid;
  gap: 12px;
}

.page-contact .time-bay {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px 10px;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--ink-2);
  border-left: 2px solid var(--line-strong);
  clip-path: polygon(0 0, calc(100% - var(--contact-card-cut)) 0, 100% var(--contact-card-cut), 100% 100%, 0 100%);
}

.page-contact .time-bay--live {
  border-left-color: var(--cyan);
}

.page-contact .time-bay--amber {
  border-left-color: var(--amber);
}

.page-contact .time-bay__label {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .time-bay__value {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  font-size: clamp(17px, 2.6vw, 23px);
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .time-bay__note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 准备清单 ---------- */
.page-contact .prep {
  border-top: 1px solid var(--line-strong);
}

.page-contact .prep-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-item__summary {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 18px 2px;
  list-style: none;
  cursor: pointer;
}

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

.page-contact .prep-item__summary:hover .prep-item__title {
  color: var(--cyan);
}

.page-contact .prep-item__idx {
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.1em;
}

.page-contact .prep-item__title {
  font-family: var(--font-heading);
  font-size: clamp(16px, 2.4vw, 20px);
  font-weight: 500;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

.page-contact .prep-item__hint {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .prep-item__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

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

.page-contact .prep-list {
  margin: 0;
  padding: 0 0 22px 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .prep-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .prep-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan);
}

/* ---------- 会员中心 ---------- */
.page-contact .member-grid {
  display: grid;
  gap: 14px;
}

.page-contact .member-card {
  padding: clamp(18px, 2.6vw, 26px);
  background: linear-gradient(160deg, rgba(16, 42, 71, 0.9), rgba(8, 23, 41, 0.7));
  border-left: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--contact-card-cut) 100%, 0 calc(100% - var(--contact-card-cut)));
}

.page-contact .member-card__coord {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .member-card__title {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .member-card__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .member-foot {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 合作与媒体 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 14px;
}

.page-contact .partner-card {
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 3vw, 30px);
  background: var(--ink-2);
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, 0 100%);
}

.page-contact .partner-card__tag {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .partner-card__title {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: clamp(18px, 2.6vw, 22px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .partner-card__desc {
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .partner-card .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 地址面板 ---------- */
.page-contact .addr-panel {
  display: grid;
  gap: 20px;
  padding: clamp(20px, 3.2vw, 34px);
  background: var(--ink-0);
  border-top: 2px solid var(--amber);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
}

.page-contact .addr-panel__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .addr-panel__value {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(18px, 2.8vw, 24px);
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .addr-panel__meta {
  margin: 0;
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-contact .addr-panel__row dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  margin-bottom: 5px;
}

.page-contact .addr-panel__row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px 18px;
  }

  .page-contact .contact-row {
    grid-template-columns: 28px 1fr auto;
    align-items: start;
  }

  .page-contact .contact-row__copy {
    grid-column: 3;
    margin-top: 0;
  }

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

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

  .page-contact .addr-panel {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }

  .page-contact .addr-panel__meta {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__stage {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(40px, 7vw, 110px);
    align-items: stretch;
  }

  .page-contact .contact-hero__track {
    display: block;
  }

  .page-contact .time-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .contact-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-contact .member-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .contact-hero__lede {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .status-dot {
    animation: none;
  }

  .page-contact .channel,
  .page-contact .copy-btn,
  .page-contact .prep-item__title {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .channel:focus-within {
    transform: none;
  }
}