.page-contact {
  --contact-card-border: rgba(10, 25, 47, 0.14);
  --contact-mono: var(--font-mono);
}

/* ========== Hero ========== */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--deep-blue);
}

.page-contact .contact-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -100px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.18), transparent 70%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  width: 38%;
  height: 140px;
  background: linear-gradient(135deg, transparent 50%, rgba(255, 107, 53, 0.12) 50%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
  min-height: 420px;
  padding: 96px 20px 72px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.page-contact .contact-hero .breadcrumb--hero {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-bottom: 32px;
}

.page-contact .contact-hero .breadcrumb--hero a {
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-contact .contact-hero .breadcrumb--hero a:hover {
  color: var(--cyan);
}

.page-contact .contact-hero__content {
  max-width: 640px;
}

.page-contact .contact-hero .page-hero__title {
  color: #fff;
  margin: 8px 0 14px;
}

.page-contact .contact-hero .page-hero__lead {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  max-width: 46em;
}

.page-contact .contact-hero .page-hero__actions {
  margin-top: 32px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ========== 堆叠章节通用 ========== */
.page-contact .stack-section__head {
  margin-bottom: 36px;
}

.page-contact .stack-section__kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-contact .stack-section__title {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3.8vw, 2.6rem);
  color: var(--ink);
  line-height: 1.25;
  margin: 6px 0 10px;
}

.page-contact .stack-section__desc {
  color: var(--ink-soft);
  max-width: 52em;
  line-height: 1.7;
  font-size: 0.95rem;
}

/* ========== 联系通道 ========== */
.page-contact .contact-channels {
  background: var(--paper);
  padding: 80px 0;
}

.page-contact .contact-channels__grid {
  display: grid;
  gap: 28px;
}

.page-contact .contact-channels__cards {
  display: grid;
  gap: 16px;
}

.page-contact .contact-channels__map {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--deep-blue);
  box-shadow: var(--shadow-panel);
}

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

/* ========== 联系卡片 ========== */
.page-contact .contact-card {
  position: relative;
  padding: 24px 22px;
  background: var(--glass);
  border: 1px solid var(--contact-card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .contact-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(10, 25, 47, 0.12);
}

.page-contact .contact-card--primary {
  border-left: 3px solid var(--orange);
}

.page-contact .contact-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-contact .contact-card__head .index-tag {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.page-contact .contact-card__note {
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 1.5;
  margin: 0 0 8px;
}

.page-contact .contact-card__email {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.5;
  word-break: break-all;
  margin: 0 0 16px;
}

.page-contact .contact-card__email a {
  color: var(--deep-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.45);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .contact-card__email a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .contact-card__phonenum {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--deep-blue);
  margin: 0;
}

.page-contact .contact-card__copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-contact .contact-card__copy:hover {
  background: rgba(0, 229, 255, 0.1);
  border-color: var(--cyan);
  color: var(--deep-blue);
}

.page-contact .contact-card__copy-done {
  display: none;
}

.page-contact .contact-card__copy:focus .contact-card__copy-label,
.page-contact .contact-card__copy:active .contact-card__copy-label {
  display: none;
}

.page-contact .contact-card__copy:focus .contact-card__copy-done,
.page-contact .contact-card__copy:active .contact-card__copy-done {
  display: inline;
  color: var(--green);
}

/* ========== SVG 地图 ========== */
.page-contact .contact-map__grid path {
  stroke: rgba(255, 255, 255, 0.07);
}

.page-contact .contact-map__line {
  transition: stroke 0.2s ease, stroke-width 0.2s ease;
}

.page-contact .contact-map__line:hover {
  stroke: rgba(0, 229, 255, 0.75) !important;
  stroke-width: 2.5;
}

.page-contact .contact-map__route {
  cursor: pointer;
  transition: stroke-width 0.2s ease, filter 0.2s ease;
}

.page-contact .contact-map__route:hover {
  stroke-width: 4.5;
  filter: drop-shadow(0 0 12px rgba(0, 229, 255, 0.55));
}

.page-contact .contact-map__block {
  cursor: pointer;
  transition: fill 0.2s ease, stroke 0.2s ease;
}

.page-contact .contact-map__block:hover {
  fill: rgba(0, 229, 255, 0.16);
  stroke: rgba(0, 229, 255, 0.95);
  stroke-width: 2;
}

.page-contact .contact-map__node {
  cursor: pointer;
  transition: fill 0.2s ease;
}

.page-contact .contact-map__node:hover {
  fill: var(--orange);
}

.page-contact .contact-map__labels text {
  font-family: var(--font-mono);
  user-select: none;
}

/* ========== 表单浮层 ========== */
.page-contact .contact-map__form {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  max-width: 300px;
  margin-left: auto;
  padding: 22px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-sm);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.25);
}

.page-contact .contact-form__tag {
  color: var(--orange);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.page-contact .contact-form__title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: var(--deep-blue);
  margin: 6px 0 4px;
}

.page-contact .contact-form__hint {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0 0 14px;
}

.page-contact .contact-form__row {
  display: grid;
  gap: 10px;
}

.page-contact .contact-form__field {
  margin-bottom: 10px;
}

.page-contact .contact-form__field label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin-bottom: 4px;
}

.page-contact .contact-form__field input,
.page-contact .contact-form__field select,
.page-contact .contact-form__field textarea {
  display: block;
  width: 100%;
  padding: 8px 10px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(10, 25, 47, 0.2);
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
}

.page-contact .contact-form__field input:focus,
.page-contact .contact-form__field select:focus,
.page-contact .contact-form__field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.14);
}

.page-contact .contact-form__field input:invalid:not(:placeholder-shown) {
  border-color: rgba(255, 107, 53, 0.7);
}

.page-contact .contact-form__field input:valid:not(:placeholder-shown) {
  border-color: rgba(16, 185, 129, 0.6);
}

.page-contact .contact-form__field textarea {
  resize: vertical;
  min-height: 64px;
}

.page-contact .contact-form__note {
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0 0 14px;
}

.page-contact .contact-map__form .btn {
  width: 100%;
}

/* ========== 地址章节 ========== */
.page-contact .contact-address {
  background: var(--paper);
  border-top: 1px solid rgba(10, 25, 47, 0.07);
  padding: 72px 0;
}

.page-contact .contact-address__grid {
  display: grid;
  gap: 20px;
}

.page-contact .contact-address__info {
  padding: 30px;
  background: var(--glass);
  border: 1px solid var(--contact-card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-contact .contact-address__info .index-tag {
  color: var(--orange);
  font-size: 0.72rem;
}

.page-contact .contact-address__info h3 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  color: var(--deep-blue);
  margin: 14px 0 12px;
}

.page-contact .contact-address__info p {
  color: var(--ink);
  line-height: 1.8;
  margin-bottom: 10px;
}

.page-contact .contact-address__meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.page-contact .contact-address__statement {
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 1.7 !important;
  padding-top: 4px;
  border-top: 1px dashed rgba(10, 25, 47, 0.12);
}

.page-contact .contact-address__info .btn {
  margin-top: 12px;
}

.page-contact .contact-address__visual {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--deep-blue);
  box-shadow: var(--shadow-panel);
}

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

/* ========== 商务合作 ========== */
.page-contact .contact-business {
  position: relative;
  overflow: hidden;
  background: var(--deep-blue);
  padding: 88px 0;
}

.page-contact .contact-business__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .contact-business__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
  filter: saturate(0.65) contrast(1.1);
}

.page-contact .contact-business .container {
  position: relative;
  z-index: 2;
}

.page-contact .contact-business .stack-section__kicker {
  color: var(--cyan);
}

.page-contact .contact-business .stack-section__title {
  color: #fff;
}

.page-contact .contact-business__grid {
  display: grid;
  gap: 18px;
}

.page-contact .contact-business__grid .panel {
  min-height: 220px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.page-contact .contact-business__grid .panel:hover {
  background: rgba(255, 255, 255, 0.13);
  border-color: rgba(0, 229, 255, 0.35);
  transform: translateY(-4px);
}

.page-contact .contact-business__grid h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: #fff;
  margin: 0 0 10px;
}

.page-contact .contact-business__grid p {
  flex-grow: 1;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  margin: 0 0 16px;
}

.page-contact .contact-business__phone {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cyan) !important;
  margin-bottom: 12px !important;
}

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

.page-contact .contact-business__grid .btn--ghost {
  color: var(--cyan);
  border-color: rgba(0, 229, 255, 0.5);
}

.page-contact .contact-business__grid .btn--ghost:hover {
  background: rgba(0, 229, 255, 0.12);
  border-color: var(--cyan);
}

/* ========== 桌面端断点 ========== */
@media (min-width: 768px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: 360px minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-channels__map {
    max-width: 560px;
    justify-self: end;
  }

  .page-contact .contact-map__form {
    right: 24px;
    bottom: 24px;
    left: auto;
    width: 300px;
  }

  .page-contact .contact-form__row {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .page-contact .contact-address__grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: center;
  }

  .page-contact .contact-business__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}