.page-contact {
  --contact-panel-bg: rgba(17, 34, 64, 0.72);
  --contact-line: rgba(42, 79, 126, 0.6);
  --contact-icon-bg: rgba(255, 107, 53, 0.1);
  background:
    radial-gradient(circle at 88% 4%, rgba(255, 107, 53, 0.09), transparent 26%),
    linear-gradient(180deg, #0A192F 0%, #081526 100%);
  color: var(--c-text);
  overflow-x: hidden;
}

/* ---------- 页面引导区 ---------- */
.contact-hero {
  position: relative;
  padding: var(--space-4) 0 var(--space-3);
  border-bottom: 1px solid var(--c-border);
}

.contact-hero::before {
  content: "REACH-US";
  position: absolute;
  top: 10px;
  right: -20px;
  font-family: var(--font-mono);
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(42, 79, 126, 0.16);
  white-space: nowrap;
  pointer-events: none;
  z-index: 0;
}

.contact-hero__inner {
  position: relative;
  z-index: 1;
}

.contact-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.875rem;
  color: var(--c-text-dim);
}

.contact-breadcrumb a {
  color: var(--c-text-dim);
  text-decoration: none;
  transition: color var(--transition);
}

.contact-breadcrumb a:hover {
  color: var(--c-accent);
}

.contact-breadcrumb__sep {
  color: var(--c-border);
}

.contact-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.contact-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 760px;
}

.contact-lead {
  margin: 0;
  max-width: 640px;
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--c-text-dim);
}

.contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--space-2);
}

.contact-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--c-border);
  font-size: 0.875rem;
  color: var(--c-text-dim);
  background: rgba(17, 34, 64, 0.5);
}

.contact-online-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--c-lime);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.12);
}

/* ---------- 主体栅格 ---------- */
.contact-main {
  padding-top: var(--space-3);
  padding-bottom: var(--space-4);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3) 0;
}

.contact-col-info,
.contact-col-action {
  min-width: 0;
}

/* ---------- 左列：联系渠道 ---------- */
.contact-col-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-image-cs {
  width: 100%;
  max-width: 440px;
  border: 1px solid var(--c-border);
  background: var(--c-surface);
}

.contact-image-cs img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: cover;
}

.contact-image-caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--c-border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-text-dim);
  background: rgba(17, 34, 64, 0.4);
}

.contact-heading-block {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.contact-heading-block h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.15;
}

.section-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  padding: 6px 10px;
  border: 1px solid var(--c-border);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-accent);
  background: rgba(17, 34, 64, 0.4);
}

.contact-channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-channel-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--c-border);
  background: rgba(17, 34, 64, 0.55);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.contact-channel-card:hover {
  border-color: rgba(255, 107, 53, 0.45);
  box-shadow: inset 3px 0 0 var(--c-accent);
  transform: translateY(-2px);
}

.contact-channel-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  color: var(--c-accent);
  background: var(--contact-icon-bg);
  border: 1px solid rgba(255, 107, 53, 0.3);
}

.contact-channel-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.contact-channel-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--c-text-dim);
}

.contact-channel-value {
  font-size: 1.0625rem;
  line-height: 1.45;
  font-weight: 700;
  color: var(--c-text);
  word-break: break-word;
}

.contact-channel-value--tel {
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.contact-channel-note {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--c-text-dim);
}

/* ---------- 右列：表单面板 ---------- */
.contact-col-action {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-form-panel {
  position: relative;
  padding: var(--space-2);
  border: 1px solid var(--c-border);
  background: var(--contact-panel-bg);
}

.contact-form-panel::before {
  content: "";
  display: block;
  height: 3px;
  margin-bottom: 18px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-border));
}

.contact-form-intro {
  margin: -10px 0 24px;
  max-width: 480px;
  color: var(--c-text-dim);
  line-height: 1.65;
}

.contact-field-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 24px;
}

.contact-field {
  display: flex;
  flex-direction: column;
  margin-bottom: 24px;
}

.contact-field label {
  margin-bottom: 6px;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--c-text-dim);
}

.contact-field input,
.contact-field textarea,
.contact-select select {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--c-border);
  border-radius: 0;
  padding: 10px 0 8px;
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.55;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-field input::placeholder,
.contact-field textarea::placeholder {
  color: rgba(170, 195, 212, 0.5);
}

.contact-field input:focus,
.contact-field textarea:focus,
.contact-select select:focus {
  outline: none;
  border-bottom-color: var(--c-accent);
  box-shadow: 0 1px 0 var(--c-accent);
}

.contact-field textarea {
  resize: vertical;
  min-height: 140px;
}

.contact-select {
  position: relative;
}

.contact-select select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  padding-right: 32px;
}

.contact-select select option {
  color: var(--c-text);
  background: var(--c-surface);
}

.contact-select__arrow {
  position: absolute;
  right: 2px;
  bottom: 18px;
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--c-accent);
  pointer-events: none;
}

.contact-form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 6px;
}

.contact-form-footer .btn-primary {
  padding: 14px 34px;
}

.contact-form-tip {
  margin: 0;
  max-width: 320px;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--c-text-dim);
}

/* ---------- 右列：地图卡片 ---------- */
.contact-map-card {
  border: 1px solid var(--c-border);
  background: rgba(17, 34, 64, 0.45);
  transition: border-color var(--transition);
}

.contact-map-card:hover {
  border-color: rgba(255, 107, 53, 0.4);
}

.contact-map-image img {
  display: block;
  width: 100%;
  height: auto;
}

.contact-map-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 22px 22px;
  border-top: 1px solid var(--c-border);
}

.contact-map-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--c-accent);
}

.contact-map-address {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
}

.contact-map-note {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--c-text-dim);
}

/* ---------- 支持渠道 ---------- */
.contact-support {
  padding-top: var(--space-4);
  padding-bottom: var(--space-5);
}

.contact-support-intro,
.contact-process-intro {
  margin: -10px 0 26px;
  max-width: 640px;
  color: var(--c-text-dim);
  line-height: 1.65;
}

.contact-support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.contact-support-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 28px;
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  transition: border-color var(--transition), transform var(--transition);
}

.contact-support-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-4px);
}

.contact-meta {
  display: inline-block;
  align-self: flex-start;
  margin-bottom: 14px;
  padding: 4px 8px;
  border: 1px solid var(--c-border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--c-accent);
}

.contact-support-card h3 {
  margin: 0 0 10px;
  font-size: 1.4rem;
  line-height: 1.25;
}

.contact-support-card p {
  margin: 0 0 24px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-text-dim);
}

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

.contact-more {
  display: block;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px dashed var(--c-border);
  font-size: 0.875rem;
  color: var(--c-text-dim);
}

/* ---------- 处理流程 ---------- */
.contact-heading-block--process {
  margin-top: 48px;
}

.contact-process {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.contact-process__item {
  border-left: 2px solid var(--c-border);
  padding-left: 20px;
}

.contact-process__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-accent);
}

.contact-process__item h3 {
  margin: 0 0 6px;
  font-size: 1.25rem;
  line-height: 1.3;
}

.contact-process__item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-text-dim);
}

/* ---------- 信任条 ---------- */
.contact-trust {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 48px;
  padding: 22px 24px;
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.07), rgba(17, 34, 64, 0.5));
}

.contact-trust__text {
  margin: 0;
  max-width: 620px;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--c-text);
}

.contact-trust__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.contact-trust__links a {
  color: var(--c-text-dim);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9375rem;
  border-bottom: 1px solid var(--c-border);
  transition: color var(--transition), border-color var(--transition);
}

.contact-trust__links a:hover {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}

/* ---------- 响应式增强 ---------- */
@media (min-width: 768px) {
  .contact-main {
    padding-top: var(--space-4);
  }

  .contact-layout {
    gap: var(--space-4) 0;
  }

  .contact-form-panel {
    padding: var(--space-3);
  }

  .contact-field-row {
    grid-template-columns: 1fr 1fr;
  }

  .contact-process {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
}

@media (min-width: 1024px) {
  .contact-main {
    padding-top: var(--space-5);
  }

  .contact-layout {
    grid-template-columns: 5fr 7fr;
    gap: 0 var(--space-4);
  }

  .contact-form-panel {
    padding: var(--space-4);
  }

  .contact-support-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .contact-process {
    gap: 36px;
  }
}