.page-contact {
  --contact-radius-lg: 28px;
  --contact-radius-md: 18px;
}

/* ===== 首屏：左右分栏联系方式 ===== */
.page-contact .contact-hero {
  position: relative;
  z-index: 1;
  overflow: hidden;
  padding: 132px 0 96px;
  background: var(--color-primary);
}

.page-contact .contact-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 40px;
}

.page-contact .hero-info {
  min-width: 0;
}

.page-contact .contact-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--color-light-blue);
}

.page-contact .contact-breadcrumb a {
  color: var(--color-light-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.page-contact .contact-breadcrumb .breadcrumb-current {
  color: var(--color-highlight);
}

.page-contact .overline-hero {
  color: var(--color-highlight);
  letter-spacing: 0.16em;
}

.page-contact .contact-hero h1 {
  display: inline-block;
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4.8rem);
  font-weight: 800;
  line-height: 1.08;
  color: var(--color-bg);
  text-transform: uppercase;
  transform: skewX(-4deg);
  transform-origin: left center;
}

.page-contact .hero-desc {
  max-width: 620px;
  margin: 0;
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-light-blue);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-contact .hero-actions .btn-outline {
  border-color: rgba(245, 239, 230, 0.55);
  color: var(--color-bg);
}

.page-contact .hero-actions .btn-outline:hover {
  background: rgba(245, 239, 230, 0.12);
  border-color: var(--color-highlight);
}

.page-contact .hero-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  max-width: 540px;
  margin-top: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-light-blue);
}

.page-contact .hero-note .pulse-dot {
  flex: none;
  margin-top: 6px;
}

.page-contact .hero-dataflow {
  position: relative;
  display: grid;
  gap: 14px;
  min-width: 0;
  padding: 22px 20px 26px;
  border-radius: var(--contact-radius-lg);
  background: linear-gradient(135deg, rgba(182, 255, 60, 0.07), rgba(255, 107, 53, 0.05));
  border: 1px solid rgba(182, 255, 60, 0.14);
}

.page-contact .dataflow-canvas {
  position: relative;
  height: 200px;
  overflow: hidden;
  border-radius: var(--contact-radius-md);
  background: linear-gradient(120deg, rgba(182, 255, 60, 0.08), transparent 65%);
}

.page-contact .dataflow-node {
  position: absolute;
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-highlight);
  opacity: 0.85;
  animation: contactFlow 3.4s ease-in-out infinite;
}

.page-contact .dataflow-node:nth-of-type(2) {
  background: var(--color-accent);
  animation-delay: 0.5s;
}

.page-contact .dataflow-node:nth-of-type(3) {
  background: var(--color-highlight);
  animation-delay: 1.1s;
}

.page-contact .dataflow-node:nth-of-type(4) {
  background: var(--color-accent);
  animation-delay: 1.7s;
}

.page-contact .node-a {
  top: 26px;
  left: 14%;
}

.page-contact .node-b {
  top: 64px;
  left: 42%;
  width: 10px;
  height: 10px;
}

.page-contact .node-c {
  top: 132px;
  left: 68%;
}

.page-contact .node-d {
  top: 158px;
  left: 24%;
  width: 8px;
  height: 8px;
}

.page-contact .dataflow-line {
  position: absolute;
  display: block;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.55;
}

.page-contact .line-a {
  top: 48px;
  left: 6%;
  width: 52%;
  transform: rotate(-8deg);
}

.page-contact .line-b {
  top: 108px;
  left: 30%;
  width: 44%;
  transform: rotate(6deg);
  background: linear-gradient(90deg, transparent, var(--color-highlight), transparent);
}

.page-contact .line-c {
  top: 182px;
  left: 10%;
  width: 60%;
  transform: rotate(-3deg);
}

@keyframes contactFlow {
  0%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }
  50% {
    opacity: 0.9;
    transform: translateY(-8px);
  }
}

.page-contact .hero-divider {
  position: relative;
  width: 84%;
  height: 6px;
  margin: 2px auto 4px;
  border-radius: 999px;
  background: var(--color-accent);
  transform: skewX(-30deg) rotate(-4deg);
}

.page-contact .speed-card {
  position: relative;
  padding: 18px 22px;
  border-radius: var(--contact-radius-md);
  background: var(--color-dark);
  color: var(--color-bg);
  box-shadow: 0 4px 14px rgba(11, 27, 61, 0.18);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .speed-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-primary-hover);
}

.page-contact .speed-primary {
  background: linear-gradient(135deg, var(--color-dark), var(--color-primary));
  border-left: 4px solid var(--color-accent);
}

.page-contact .speed-card .stat-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--color-light-blue);
}

.page-contact .speed-value {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-bg);
  text-decoration: none;
}

.page-contact .speed-card a.speed-value:hover {
  color: var(--color-highlight);
}

.page-contact .speed-sub {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--color-light-blue);
}

.page-contact .hero-band {
  position: absolute;
  right: -5%;
  bottom: -2%;
  left: -5%;
  z-index: 1;
  height: 56px;
  background: var(--color-bg);
  opacity: 0.96;
}

/* ===== 01 客服与支持 ===== */
.page-contact .support-grid {
  display: grid;
  gap: 44px;
  align-items: center;
}

.page-contact .support-visual {
  min-width: 0;
}

.page-contact .support-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 32px;
  box-shadow: var(--shadow-primary);
}

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

.page-contact .support-content {
  min-width: 0;
}

.page-contact .contact-channel-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 24px;
  padding: 0;
  list-style: none;
}

.page-contact .channel-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-light-blue-2);
}

.page-contact .channel-icon {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: var(--color-primary);
  color: var(--color-highlight);
}

.page-contact .channel-label {
  flex: none;
  min-width: 72px;
  font-size: 14px;
  color: var(--color-muted);
}

.page-contact .channel-value {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}

.page-contact .channel-value:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.page-contact .support-tip {
  margin: 24px 0 28px;
  padding: 16px 18px;
  border-left: 4px solid var(--color-highlight);
  border-radius: 0 16px 16px 0;
  background: var(--color-light-blue-2);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-dark);
}

.page-contact .support-tip strong {
  color: var(--color-primary);
}

/* ===== 02 商务合作 ===== */
.page-contact .contact-partnership {
  position: relative;
  overflow: hidden;
  padding: 96px 0 104px;
  background: var(--color-dark);
  color: var(--color-bg);
}

.page-contact .partnership-inner {
  display: grid;
  gap: 52px;
}

.page-contact .section-title-light {
  color: var(--color-highlight);
}

.page-contact .section-index-alt {
  color: var(--color-accent);
}

.page-contact .partnership-lead {
  max-width: 640px;
  margin: 16px 0 24px;
  font-size: 18px;
  line-height: 1.75;
  color: var(--color-bg);
}

.page-contact .partnership-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.page-contact .partnership-topics .chip {
  background: rgba(182, 255, 60, 0.12);
  color: var(--color-highlight);
}

.page-contact .partnership-email {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: fit-content;
  padding: 18px 24px;
  border-radius: var(--contact-radius-md);
  background: var(--color-accent);
  color: var(--color-dark);
  text-decoration: none;
  box-shadow: var(--shadow-accent);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .partnership-email:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent-hover);
}

.page-contact .partnership-email-label {
  font-size: 13px;
  opacity: 0.85;
}

.page-contact .partnership-email-value {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
}

.page-contact .partnership-note {
  max-width: 600px;
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-light-blue);
}

.page-contact .partnership-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 0;
}

.page-contact .fact-item {
  padding: 24px 20px;
  border-top: 3px solid var(--color-accent);
  border-radius: var(--contact-radius-lg);
  background: var(--color-primary);
}

.page-contact .fact-num {
  margin: 0;
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  color: var(--color-bg);
}

.page-contact .fact-label {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-light-blue);
}

.page-contact .partnership-band {
  position: absolute;
  right: -4%;
  bottom: -3%;
  left: -4%;
  height: 64px;
  background: var(--color-bg);
  opacity: 0.92;
}

/* ===== 03 办公地址 ===== */
.page-contact .address-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 34px;
}

.page-contact .address-heading {
  min-width: 0;
}

.page-contact .address-panel {
  overflow: hidden;
  border-radius: var(--contact-radius-lg);
  background: var(--color-primary);
  box-shadow: var(--shadow-primary);
}

.page-contact .address-media {
  aspect-ratio: 12 / 5;
  overflow: hidden;
}

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

.page-contact .address-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding: 28px;
  color: var(--color-bg);
}

.page-contact .address-location-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--color-light-blue);
}

.page-contact .address-line {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
}

.page-contact .address-tel {
  padding-bottom: 2px;
  border-bottom: 1px dashed rgba(182, 255, 60, 0.5);
  color: var(--color-highlight);
  text-decoration: none;
}

.page-contact .address-tel:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ===== 04 快速求助 ===== */
.page-contact .contact-faq {
  background: var(--color-light-blue-2);
}

.page-contact .faq-grid {
  display: grid;
  gap: 44px;
}

.page-contact .faq-head {
  min-width: 0;
}

.page-contact .faq-stack {
  display: grid;
  gap: 14px;
}

.page-contact .faq-item {
  padding: 6px 24px;
  border-left: 4px solid var(--color-accent);
  border-radius: var(--contact-radius-md);
  background: var(--color-bg);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.page-contact .faq-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
}

.page-contact .faq-item summary {
  padding: 14px 0;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
}

.page-contact .faq-item[open] summary {
  color: var(--color-accent);
}

.page-contact .faq-item p {
  margin: 0;
  padding-bottom: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-dark);
}

/* ===== 05 提交咨询 ===== */
.page-contact .contact-form-section {
  background: var(--color-bg);
}

.page-contact .form-layout {
  display: grid;
  gap: 44px;
}

.page-contact .form-intro {
  min-width: 0;
}

.page-contact .back-home-link {
  display: inline-flex;
  margin-top: 22px;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}

.page-contact .back-home-link:hover {
  color: var(--color-accent);
}

.page-contact .contact-form {
  display: grid;
  gap: 22px;
  padding: 30px 26px;
  border-radius: var(--contact-radius-lg);
  background: var(--color-primary);
  box-shadow: var(--shadow-primary);
}

.page-contact .form-field {
  display: grid;
  gap: 8px;
}

.page-contact .form-field label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-light-blue);
}

.page-contact .form-field input,
.page-contact .form-field select,
.page-contact .form-field textarea {
  box-sizing: border-box;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  border-bottom: 2px solid var(--color-light-blue);
  border-radius: 10px 10px 0 0;
  background: var(--color-dark);
  color: var(--color-bg);
  font-family: var(--font-body);
  font-size: 16px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .form-field input::placeholder,
.page-contact .form-field textarea::placeholder {
  color: var(--color-light-blue);
  opacity: 0.72;
}

.page-contact .form-field input:focus,
.page-contact .form-field select:focus,
.page-contact .form-field textarea:focus {
  outline: none;
  border-bottom-color: var(--color-highlight);
  box-shadow: 0 8px 16px -10px rgba(182, 255, 60, 0.55);
}

.page-contact .form-field select option {
  background: var(--color-dark);
  color: var(--color-bg);
}

.page-contact .form-field textarea {
  resize: vertical;
  min-height: 96px;
}

.page-contact .form-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--color-light-blue);
}

.page-contact .form-note a {
  color: var(--color-highlight);
  text-decoration: underline;
}

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

/* ===== 桌面端布局增强 ===== */
@media (min-width: 960px) {
  .page-contact .contact-hero {
    display: flex;
    align-items: center;
    min-height: 720px;
    padding: 168px 0 128px;
    background: linear-gradient(115deg, var(--color-primary) 0%, var(--color-primary) 56%, var(--color-bg) 56.2%, var(--color-bg) 100%);
  }

  .page-contact .contact-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
    align-items: center;
  }

  .page-contact .hero-info {
    padding-right: 20px;
  }

  .page-contact .hero-dataflow {
    padding: 28px 26px 32px;
    background: transparent;
    border-color: transparent;
  }

  .page-contact .dataflow-canvas {
    height: 236px;
  }

  .page-contact .contact-hero h1 {
    font-size: clamp(3rem, 5vw, 5rem);
  }

  .page-contact .support-grid {
    grid-template-columns: 0.92fr 1.08fr;
    gap: 76px;
  }

  .page-contact .contact-partnership {
    padding: 120px 0 132px;
  }

  .page-contact .partnership-inner {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 88px;
    align-items: center;
  }

  .page-contact .partnership-facts {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .address-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

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

  .page-contact .faq-grid {
    grid-template-columns: 0.78fr 1.22fr;
    gap: 76px;
    align-items: start;
  }

  .page-contact .form-layout {
    grid-template-columns: 0.78fr 1.22fr;
    gap: 88px;
    align-items: start;
  }

  .page-contact .contact-form {
    padding: 40px;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero h1 {
    font-size: 5rem;
  }

  .page-contact .contact-hero-grid {
    gap: 84px;
  }

  .page-contact .support-grid,
  .page-contact .partnership-inner {
    gap: 96px;
  }
}