.page-contact {
  --contact-cut: 18px;
  --contact-panel: #16304C;
  position: relative;
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  padding-top: 20px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-contact .breadcrumb span[aria-hidden="true"] {
  margin: 0 8px;
  color: var(--dim);
}

.page-contact .contact-h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4.6vw, 44px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: 0.02em;
  margin: 10px 0 14px;
}

.page-contact .contact-section-head {
  max-width: 720px;
  margin-bottom: 34px;
}

.page-contact .contact-section-head .lede {
  color: var(--muted);
  margin: 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: 26px;
  padding-bottom: 8px;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 30px;
  align-items: end;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 8.4vw, 74px);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: 0.02em;
  margin: 12px 0 18px;
  text-wrap: balance;
}

.page-contact .contact-hero__copy .lede {
  color: var(--muted);
  max-width: 62ch;
}

.page-contact .contact-facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--line-soft);
  padding-top: 20px;
}

.page-contact .contact-fact {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-contact .contact-fact__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--amber);
  min-width: 74px;
}

.page-contact .contact-fact__num em {
  font-style: normal;
  font-size: 13px;
  margin-left: 2px;
  color: var(--muted);
}

.page-contact .contact-fact__label {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-contact .contact-hero__media {
  margin: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
}

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

.page-contact .media__caption {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dim);
  padding-top: 8px;
}

/* ---------- 竖向脉冲连接线 ---------- */
.page-contact .contact-spine,
.page-contact .contact-tail {
  width: 60px;
  height: 120px;
  margin: 26px 0 26px clamp(0px, 6vw, 120px);
}

.page-contact .contact-tail {
  margin-top: 8px;
  margin-bottom: 0;
}

.page-contact .contact-spine svg,
.page-contact .contact-tail svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

.page-contact .contact-spine__base {
  fill: none;
  stroke: var(--line);
  stroke-width: 1.4;
}

.page-contact .contact-spine__glow {
  fill: none;
  stroke: var(--green);
  stroke-width: 2.2;
  filter: drop-shadow(0 0 5px rgba(107, 255, 158, 0.55));
  animation: contact-pulse 3.2s var(--ease) infinite;
}

@keyframes contact-pulse {
  0%, 62%, 100% { opacity: 0.45; }
  70% { opacity: 1; }
  78% { opacity: 0.6; }
  86% { opacity: 1; }
}

/* ---------- 三条联络路径 ---------- */
.page-contact .contact-paths__grid {
  display: grid;
  gap: 18px;
}

.page-contact .contact-path {
  position: relative;
  background: linear-gradient(158deg, var(--contact-panel) 0%, var(--ink-800) 78%);
  padding: 26px 22px 28px;
  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 0.24s var(--ease);
}

.page-contact .contact-path:hover {
  transform: translateY(-4px);
}

.page-contact .contact-path__line {
  display: block;
  width: 52px;
  height: 3px;
  margin-bottom: 18px;
}

.page-contact .contact-path--red .contact-path__line { background: var(--red); }
.page-contact .contact-path--green .contact-path__line { background: var(--green); }
.page-contact .contact-path--amber .contact-path__line { background: var(--amber); }

.page-contact .contact-path .num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--dim);
  margin: 0;
}

.page-contact .contact-path__title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 8px 0 12px;
}

.page-contact .contact-path__desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0 0 20px;
}

.page-contact .contact-path__meta {
  margin: 0;
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
}

.page-contact .contact-path__meta dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin-bottom: 4px;
}

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

.page-contact .contact-path__meta dd:last-child {
  margin-bottom: 0;
}

.page-contact .contact-paths__media {
  margin: 34px 0 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
  background: linear-gradient(200deg, var(--ink-700), var(--ink-900));
}

.page-contact .contact-paths__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 常用联络方式 ---------- */
.page-contact .contact-methods {
  background: linear-gradient(180deg, rgba(15, 32, 54, 0) 0%, rgba(15, 32, 54, 0.85) 22%, rgba(15, 32, 54, 0.85) 78%, rgba(15, 32, 54, 0) 100%);
}

.page-contact .contact-methods__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-method {
  display: grid;
  gap: 8px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-method__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--dim);
  margin: 0;
}

.page-contact .contact-method__value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 3.4vw, 26px);
  line-height: 1.35;
  color: var(--text);
  margin: 0;
  overflow-wrap: anywhere;
}

.page-contact .contact-method__value--mail {
  color: var(--green);
}

.page-contact .contact-method__value--addr {
  font-family: var(--font-body);
  font-size: clamp(15px, 2.4vw, 19px);
  line-height: 1.7;
  color: var(--text);
}

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

/* ---------- 反馈要点 ---------- */
.page-contact .contact-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.page-contact .contact-tabs .tabs__panel {
  background: linear-gradient(150deg, var(--contact-panel), var(--ink-800));
  padding: 26px 22px;
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, 0 100%);
}

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

.page-contact .contact-check li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .contact-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--amber);
}

.page-contact .contact-check--visit li::before {
  background: var(--green);
}

.page-contact .contact-tabs .note {
  margin: 20px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-cadence__grid {
  display: grid;
  gap: 28px;
}

.page-contact .contact-cadence__intro .lede {
  color: var(--muted);
  margin: 0;
}

.page-contact .contact-cadence__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-contact .cadence-item {
  position: relative;
  padding: 0 0 26px 24px;
}

.page-contact .cadence-item:last-child {
  padding-bottom: 0;
}

.page-contact .cadence-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--green);
  box-shadow: 0 0 8px rgba(107, 255, 158, 0.6);
}

.page-contact .cadence-item__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .cadence-item__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 6px 0 8px;
}

.page-contact .cadence-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 协作申请 ---------- */
.page-contact .contact-collab__body {
  display: grid;
  gap: 28px;
}

.page-contact .contact-collab__aside {
  background: linear-gradient(160deg, rgba(22, 48, 76, 0.9), rgba(10, 22, 38, 0.6));
  padding: 24px 22px;
  clip-path: polygon(var(--contact-cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--contact-cut));
}

.page-contact .contact-collab__lead {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-collab__lead a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid rgba(107, 255, 158, 0.4);
}

.page-contact .contact-collab__lead a:hover,
.page-contact .contact-collab__lead a:focus-visible {
  border-bottom-color: var(--green);
}

.page-contact .contact-collab .accordion__item + .accordion__item {
  margin-top: 10px;
}

.page-contact .contact-collab .accordion__panel-inner p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-collab .accordion__panel-inner p:last-child {
  margin-bottom: 0;
}

/* ---------- 到访 ---------- */
.page-contact .contact-visit {
  padding-bottom: 40px;
}

.page-contact .contact-visit__grid {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-contact .contact-visit__copy .lede {
  color: var(--muted);
}

.page-contact .contact-visit__addr {
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  border-left: 2px solid var(--red);
  padding-left: 16px;
}

.page-contact .contact-visit__addr-label {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--dim);
  margin-bottom: 6px;
}

.page-contact .contact-visit__map {
  position: relative;
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
  padding: 0 0 12px;
}

.page-contact .contact-visit__map svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .contact-visit__map-note {
  margin: 0;
  padding: 0 16px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--dim);
}

@media (min-width: 720px) {
  .page-contact .contact-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

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

  .page-contact .contact-fact__label {
    display: block;
    margin-top: 8px;
  }

  .page-contact .contact-paths__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .contact-method {
    grid-template-columns: 130px minmax(0, 1fr) minmax(0, 1.3fr);
    align-items: start;
    gap: 20px;
  }

  .page-contact .contact-method__label {
    padding-top: 6px;
  }

  .page-contact .contact-tabs .tabs__panel {
    padding: 34px 32px;
  }

  .page-contact .contact-check {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 28px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
  }

  .page-contact .contact-cadence__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .contact-collab__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 52px;
  }

  .page-contact .contact-section-head {
    margin-bottom: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-spine__glow {
    animation: none;
    opacity: 1;
  }

  .page-contact .contact-path {
    transition: none;
  }
}