.page-contact {
  background:
    radial-gradient(circle at 88% 6%, rgba(157, 78, 221, 0.16), transparent 30%),
    radial-gradient(circle at 4% 30%, rgba(0, 184, 217, 0.12), transparent 24%),
    var(--color-bg);
  color: var(--color-white);
  overflow-x: clip;
}

/* ========== Hero ========== */
.page-contact .contact-hero {
  position: relative;
  padding: 48px 0 60px;
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -20px;
  right: -60px;
  width: 280px;
  height: 340px;
  background: linear-gradient(135deg, rgba(0, 184, 217, 0.22), rgba(157, 78, 221, 0.06));
  clip-path: polygon(0 18%, 100% 0, 100% 100%, 36% 84%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-purple), transparent);
  opacity: 0.5;
  pointer-events: none;
}

.page-contact .breadcrumbs {
  margin-bottom: 36px;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 36px;
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__copy h1 {
  font-size: clamp(2rem, 6vw, 3.6rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 12px 0 20px;
}

.page-contact .contact-hero__copy h1 span {
  display: block;
  color: var(--color-blue);
  font-size: clamp(1.05rem, 2.6vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0;
  margin-top: 6px;
}

.page-contact .contact-hero__desc {
  color: var(--color-silver);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 36em;
  margin-bottom: 28px;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-hero__plate {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(0, 184, 217, 0.16) 0%, rgba(157, 78, 221, 0.12) 50%, rgba(11, 15, 25, 0) 100%);
  border: 1px solid var(--color-line);
  clip-path: polygon(0 0, 100% 0, 100% 86%, 88% 100%, 0 100%);
  overflow: hidden;
}

.page-contact .contact-hero__plate::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent, transparent 36px, rgba(0, 184, 217, 0.05) 37px);
  pointer-events: none;
}

.page-contact .contact-hero__plate .v-note {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-silver);
  z-index: 2;
}

.page-contact .contact-hero__plate-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__code {
  font-family: var(--font-mono);
  font-size: clamp(2.8rem, 10vw, 5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--color-blue);
  letter-spacing: -0.06em;
  display: block;
}

.page-contact .contact-hero__label {
  display: inline-block;
  margin-top: 16px;
  padding: 6px 14px;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-silver);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
}

/* ========== 主布局 ========== */
.page-contact .contact-main {
  padding: 8px 0 24px;
}

.page-contact .contact-layout {
  display: grid;
  gap: 48px;
}

/* ========== 官方联系渠道 ========== */
.page-contact .contact-channels {
  border-left: 2px solid rgba(0, 184, 217, 0.35);
  padding-left: 24px;
}

.page-contact .contact-channels__head,
.page-contact .support-paths__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 28px;
}

.page-contact .section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-blue);
  margin: 0 0 8px;
}

.page-contact .contact-channels__head h2,
.page-contact .support-paths__head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  margin: 0;
}

.page-contact .contact-channels__index,
.page-contact .support-paths__index {
  font-family: var(--font-mono);
  color: rgba(255, 255, 255, 0.32);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1;
}

.page-contact .contact-channels__media {
  margin-bottom: 28px;
}

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

.page-contact .contact-channels__list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  border-top: 1px solid var(--color-line);
}

.page-contact .channel-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--color-line);
  display: grid;
  gap: 10px;
}

.page-contact .channel-item__label {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--color-silver);
  text-transform: uppercase;
  font-weight: 600;
}

.page-contact .channel-item__value {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 3.2vw, 1.45rem);
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
  word-break: break-all;
  transition: color var(--t-fast);
}

.page-contact .channel-item__value:hover {
  color: var(--color-green);
}

.page-contact .channel-item__note {
  font-size: 0.85rem;
  color: var(--color-silver);
  line-height: 1.6;
}

.page-contact .channel-item__address {
  font-family: var(--font-sans);
  font-style: normal;
  line-height: 1.8;
  font-size: clamp(1rem, 2.8vw, 1.2rem);
  word-break: normal;
}

.page-contact .contact-channels__service {
  margin-top: 28px;
  padding: 20px 22px;
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-blue);
  border-radius: var(--radius-sm);
  background: rgba(0, 184, 217, 0.05);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .contact-channels__service-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.page-contact .contact-channels__service-head span {
  font-size: 0.85rem;
  font-weight: 700;
}

.page-contact .contact-channels__service-head small {
  color: var(--color-silver);
  font-size: 0.78rem;
}

.page-contact .contact-channels__service-mail {
  color: var(--color-green);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  text-decoration: none;
  word-break: break-all;
}

.page-contact .contact-channels__service-mail:hover {
  text-decoration: underline;
}

/* ========== 常见支持路径 ========== */
.page-contact .support-paths {
  position: relative;
  padding: 28px 20px 32px 24px;
  background: var(--color-panel);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
}

.page-contact .support-paths::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 28px;
  width: 52px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-purple));
  border-radius: 0 0 4px 4px;
}

.page-contact .support-paths__head .section-tag {
  color: var(--color-purple);
}

.page-contact .support-paths__intro {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-silver);
  margin-bottom: 28px;
}

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

.page-contact .support-card {
  display: flex;
  gap: 16px;
  padding: 20px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast);
}

.page-contact .support-card:hover {
  border-color: var(--color-blue);
  background: rgba(0, 184, 217, 0.08);
  transform: translateY(-2px);
}

.page-contact .support-card__no {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--color-blue);
  font-weight: 600;
  min-width: 24px;
}

.page-contact .support-card__content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .support-card__title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-white);
}

.page-contact .support-card__desc {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--color-silver);
}

.page-contact .support-card__more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-purple);
  margin-top: 4px;
  transition: color var(--t-fast);
}

.page-contact .support-card:hover .support-card__more {
  color: var(--color-blue);
}

/* ========== 问题反馈流程 ========== */
.page-contact .feedback-flow {
  position: relative;
  padding: 72px 0;
  overflow: hidden;
}

.page-contact .feedback-flow::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 100%;
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  background: linear-gradient(180deg, rgba(157, 78, 221, 0.07), transparent);
  pointer-events: none;
}

.page-contact .feedback-flow::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-blue), var(--color-purple), transparent);
  opacity: 0.4;
  pointer-events: none;
}

.page-contact .feedback-flow__head {
  position: relative;
  max-width: 640px;
  margin-bottom: 44px;
}

.page-contact .feedback-flow__head h2 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  margin: 0 0 14px;
}

.page-contact .feedback-flow__desc {
  color: var(--color-silver);
  line-height: 1.65;
  margin: 0;
}

.page-contact .feedback-flow__steps {
  display: grid;
  gap: 20px;
  position: relative;
}

.page-contact .flow-step {
  position: relative;
  padding: 28px 24px;
  background: linear-gradient(160deg, rgba(20, 27, 45, 0.92), rgba(20, 27, 45, 0.55));
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-blue);
  border-radius: var(--radius-sm);
}

.page-contact .flow-step:nth-child(even) {
  border-top-color: var(--color-purple);
}

.page-contact .flow-step__num {
  font-family: var(--font-mono);
  font-size: 2rem;
  line-height: 1;
  font-weight: 700;
  color: var(--color-purple);
  display: block;
  margin-bottom: 16px;
}

.page-contact .flow-step__title {
  font-size: 1.1rem;
  margin: 0 0 10px;
  font-weight: 700;
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-silver);
}

@media (prefers-reduced-motion: no-preference) {
  .page-contact .flow-step[data-revealed] {
    animation: page-contact-reveal 0.55s var(--ease-out) both;
  }
  .page-contact .flow-step:nth-child(2)[data-revealed] {
    animation-delay: 0.08s;
  }
  .page-contact .flow-step:nth-child(3)[data-revealed] {
    animation-delay: 0.16s;
  }
  .page-contact .flow-step:nth-child(4)[data-revealed] {
    animation-delay: 0.24s;
  }
}

@keyframes page-contact-reveal {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== 底部位置区 ========== */
.page-contact .contact-location {
  padding: 60px 0 80px;
}

.page-contact .contact-location__grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-contact .contact-location__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(157, 78, 221, 0.4);
  background: rgba(157, 78, 221, 0.06);
}

.page-contact .contact-location__content {
  position: relative;
}

.page-contact .contact-location__content h2 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  margin: 0 0 16px;
}

.page-contact .contact-location__text {
  color: var(--color-silver);
  line-height: 1.75;
  margin: 0 0 16px;
  max-width: 40em;
}

.page-contact .contact-location__actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

/* ========== 响应式断点 ========== */
@media (min-width: 640px) {
  .page-contact .feedback-flow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding: 56px 0 72px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 56px;
  }

  .page-contact .contact-hero__plate {
    min-height: 280px;
  }

  .page-contact .contact-main {
    padding: 16px 0 32px;
  }

  .page-contact .contact-layout {
    grid-template-columns: 1.12fr 0.88fr;
    gap: 56px;
    align-items: start;
  }

  .page-contact .feedback-flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .contact-location__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
  }

  .page-contact .contact-location__content {
    grid-column: 1;
  }

  .page-contact .contact-location__media {
    grid-column: 2;
  }
}