.page-contact {
  --contact-panel: linear-gradient(158deg, rgba(19, 34, 71, .95), rgba(11, 23, 48, .92));
  --contact-cut: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  --contact-line: var(--line);
  overflow-x: clip;
}

.page-contact .contact-top {
  padding-top: clamp(16px, 2.6vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(34px, 6.5vw, 76px) 0 clamp(26px, 4.5vw, 52px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -16%;
  right: -20%;
  width: min(660px, 84vw);
  height: min(660px, 84vw);
  background: radial-gradient(circle at 32% 32%, rgba(123, 77, 255, .58), rgba(37, 217, 232, .18) 46%, transparent 72%);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  z-index: -1;
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(380px, 62vw);
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), rgba(37, 217, 232, 0));
  z-index: -1;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  max-width: 880px;
}

.page-contact .contact-hero__title {
  margin: 16px 0 0;
  max-width: 18ch;
}

.page-contact .contact-hero__lead {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  color: var(--text-soft);
}

.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.page-contact .contact-hero__meta li {
  position: relative;
  padding-left: 16px;
}

.page-contact .contact-hero__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  background: var(--purple);
  transform: rotate(45deg);
}

/* ---------- 联系地图 ---------- */
.page-contact .contact-map {
  padding: 0 0 clamp(38px, 6vw, 72px);
}

.page-contact .map-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 2vw, 20px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .map-card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: var(--contact-panel);
  box-shadow: inset 0 0 0 1px var(--contact-line);
  clip-path: var(--contact-cut);
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .map-card:hover {
  box-shadow: inset 0 0 0 1px var(--purple-soft);
  transform: translateY(-4px);
}

.page-contact .map-card--primary {
  box-shadow: inset 0 0 0 1px var(--purple);
}

.page-contact .map-card--primary::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 74px;
  height: 3px;
  background: var(--orange);
}

.page-contact .map-card__coord {
  display: block;
  color: var(--cyan);
  font-size: 11.5px;
  letter-spacing: .18em;
}

.page-contact .map-card__label {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .14em;
}

.page-contact .map-card__value {
  margin: 8px 0 0;
  color: var(--text);
  font-size: clamp(15px, 4vw, 24px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  overflow-wrap: anywhere;
}

.page-contact .map-card__value--plain {
  font-family: var(--font-display);
  font-size: clamp(17px, 4.4vw, 26px);
}

.page-contact .map-card__note {
  margin: 12px 0 0;
  max-width: 46ch;
  color: var(--text-soft);
  font-size: 14.5px;
  line-height: 1.7;
}

/* ---------- 通用区块 ---------- */
.page-contact .contact-block {
  padding: clamp(40px, 6.5vw, 82px) 0;
}

.page-contact .contact-block--tint {
  position: relative;
  background: linear-gradient(180deg, rgba(11, 23, 48, .72), rgba(5, 11, 26, 0));
}

.page-contact .block-head {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 26px);
  margin-bottom: clamp(20px, 3.2vw, 34px);
}

.page-contact .block-head::after {
  content: "";
  flex: 1;
  height: 1px;
  min-width: 40px;
  background: linear-gradient(90deg, var(--line-strong), rgba(34, 51, 92, 0));
}

.page-contact .block-index {
  flex: none;
  font-size: clamp(28px, 5vw, 50px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-contact .block-lead {
  margin: 0 0 clamp(18px, 3vw, 28px);
  color: var(--text-soft);
}

/* ---------- 三条通道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--ink-900);
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: var(--contact-cut);
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .channel:hover {
  box-shadow: inset 0 0 0 1px var(--line-strong);
  transform: translateY(-4px);
}

.page-contact .channel--b {
  background: linear-gradient(165deg, rgba(123, 77, 255, .18), rgba(11, 23, 48, .96) 62%);
}

.page-contact .channel__tag {
  align-self: flex-start;
}

.page-contact .channel__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.8vw, 28px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .channel__text {
  margin: 0;
  color: var(--text-soft);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-contact .channel__foot {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--cyan);
  font-size: 13.5px;
  overflow-wrap: anywhere;
}

.page-contact .channel__figure {
  margin: 6px 0 0;
}

.page-contact .channel__link {
  align-self: flex-start;
  margin-top: 4px;
  padding-bottom: 3px;
  color: var(--cyan);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: color var(--dur) var(--ease);
}

.page-contact .channel__link:hover,
.page-contact .channel__link:focus-visible {
  color: var(--purple-soft);
}

/* ---------- 提交信息清单 ---------- */
.page-contact .intake-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(10px, 1.6vw, 16px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .intake-item {
  display: flex;
  gap: 16px;
  padding: 15px 18px;
  border-left: 2px solid var(--line-strong);
  background: linear-gradient(90deg, rgba(19, 34, 71, .62), rgba(19, 34, 71, 0) 88%);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .intake-item:hover {
  border-left-color: var(--cyan);
}

.page-contact .intake-num {
  flex: none;
  color: var(--purple-soft);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
}

.page-contact .intake-title {
  margin: 0;
  color: var(--text);
  font-weight: 700;
  font-size: 15.5px;
}

.page-contact .intake-text {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 服务地区 ---------- */
.page-contact .region-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 44px);
  align-items: center;
}

.page-contact .region-copy p {
  margin: 0 0 16px;
  color: var(--text-soft);
}

.page-contact .region-copy p:last-of-type {
  margin-bottom: 0;
}

.page-contact .legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: .1em;
}

.page-contact .legend__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-contact .legend__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(37, 217, 232, .7);
}

.page-contact .legend__dot--purple {
  background: var(--purple);
  box-shadow: 0 0 10px rgba(123, 77, 255, .7);
}

.page-contact .legend__dot--orange {
  background: var(--orange);
  box-shadow: 0 0 10px rgba(255, 156, 74, .7);
}

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

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

/* ---------- 内容建议 ---------- */
.page-contact .ideas-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.8vw, 30px);
  align-items: start;
}

.page-contact .ideas-layout > .prose p {
  margin: 0;
}

.page-contact .ideas-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: ideas;
}

.page-contact .ideas-steps li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--ink-900);
  box-shadow: inset 0 0 0 1px var(--line);
}

.page-contact .ideas-steps .mono {
  color: var(--orange);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .14em;
}

.page-contact .ideas-steps p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-contact .ideas-cta {
  justify-self: start;
}

/* ---------- 协议 ---------- */
.page-contact .protocol-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 2vw, 18px);
}

.page-contact .protocol-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.8vw, 28px);
  background: var(--ink-900);
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: var(--contact-cut);
  color: var(--text);
  text-decoration: none;
  transition: box-shadow var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .protocol-card:hover,
.page-contact .protocol-card:focus-visible {
  background: var(--ink-800);
  box-shadow: inset 0 0 0 1px var(--cyan);
  transform: translateY(-4px);
}

.page-contact .protocol-card__coord {
  color: var(--purple-soft);
  font-size: 11.5px;
  letter-spacing: .18em;
}

.page-contact .protocol-card__title {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
}

.page-contact .protocol-card__text {
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.7;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .intake-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .ideas-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
  }

  .page-contact .ideas-cta {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .map-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-contact .map-card:nth-child(1) {
    grid-column: span 7;
  }

  .page-contact .map-card:nth-child(2) {
    grid-column: span 5;
  }

  .page-contact .map-card:nth-child(3) {
    grid-column: span 5;
  }

  .page-contact .map-card:nth-child(4) {
    grid-column: span 7;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .channel--a {
    grid-column: 1 / 6;
  }

  .page-contact .channel--b {
    grid-column: 6 / 13;
  }

  .page-contact .channel--c {
    grid-column: 3 / 11;
    margin-top: clamp(0px, 1vw, 14px);
  }

  .page-contact .region-layout {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }
}

@media (min-width: 1120px) {
  .page-contact .ideas-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .map-card,
  .page-contact .channel,
  .page-contact .protocol-card {
    transition: box-shadow var(--dur) var(--ease);
  }

  .page-contact .map-card:hover,
  .page-contact .channel:hover,
  .page-contact .protocol-card:hover {
    transform: none;
  }
}
</