/* ===== 联系品牌页 / page-contact 专属样式 ===== */
.page-contact {
  overflow-x: hidden;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  line-height: 1.6;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact a {
  color: var(--c-text);
  text-decoration: underline;
  text-decoration-color: rgba(167, 43, 250, 0.5);
  text-underline-offset: 4px;
  transition: color 0.2s, text-decoration-color 0.2s;
}

.page-contact a:hover {
  color: var(--c-electric-blue);
  text-decoration-color: var(--c-electric-blue);
}

.page-contact a:focus-visible,
.page-contact .btn:focus-visible {
  outline: 2px solid var(--c-electric-blue);
  outline-offset: 2px;
  border-radius: 2px;
}

.page-contact .eyebrow {
  color: var(--c-neon-purple);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-shadow: 0 0 12px rgba(167, 43, 250, 0.6);
  margin: 0 0 10px;
}

.page-contact h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 8px 0 12px;
  color: var(--c-text);
}

.page-contact h3 {
  font-family: var(--font-headline);
  font-weight: 700;
  color: var(--c-text);
}

/* 面包屑 */
.page-contact .breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px 20px 0;
}

.page-contact .breadcrumb ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: 13px;
}

.page-contact .breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-muted);
}

.page-contact .breadcrumb li:not(:last-child)::after {
  content: "/";
  color: var(--c-neon-purple);
}

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

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--c-electric-blue);
  outline: none;
}

.page-contact .breadcrumb li[aria-current="page"] {
  color: var(--c-text);
}

/* ===== 框景首屏 ===== */
.page-contact .contact-hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 20px 0;
}

.page-contact .contact-hero__frame {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background-color: var(--c-bg);
  background-image:
    linear-gradient(45deg, var(--c-neon-purple) 0 4px, transparent 4px),
    linear-gradient(135deg, var(--c-electric-blue) 0 4px, transparent 4px),
    linear-gradient(225deg, var(--c-fluorescent-pink) 0 4px, transparent 4px),
    linear-gradient(315deg, var(--c-neon-purple) 0 4px, transparent 4px),
    radial-gradient(ellipse at top left, rgba(167, 43, 250, 0.22), transparent 55%),
    radial-gradient(ellipse at bottom right, rgba(0, 229, 255, 0.18), transparent 55%);
  background-repeat: no-repeat;
  background-size: 26px 26px, 26px 26px, 26px 26px, 26px 26px, 100% 100%, 100% 100%;
  background-position: top left, top right, bottom right, bottom left, top left, bottom right;
  box-shadow: 0 0 50px rgba(167, 43, 250, 0.16), 0 0 0 1px rgba(167, 43, 250, 0.08);
}

.page-contact .contact-hero__info {
  position: relative;
  padding: 34px 24px 38px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-headline);
  font-size: clamp(1.35rem, 4vw, 2.4rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0.02em;
  margin: 10px 0 16px;
  color: var(--c-text);
  text-shadow: 0 0 24px rgba(167, 43, 250, 0.5), 0 0 70px rgba(0, 229, 255, 0.18);
}

.page-contact .contact-hero__lead {
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 14px;
  color: var(--c-text);
}

.page-contact .contact-hero__support {
  border-left: 3px solid var(--c-neon-purple);
  padding-left: 12px;
  margin: 0 0 26px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-contact .contact-hero__contact-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .contact-hero__contact-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--c-neon-purple);
  transition: border-left-color 0.25s, background 0.25s;
}

.page-contact .contact-hero__contact-item:hover {
  border-left-color: var(--c-electric-blue);
  background: rgba(0, 229, 255, 0.05);
}

.page-contact .contact-hero__contact-label {
  font-size: 12px;
  color: var(--c-neon-purple);
  letter-spacing: 0.14em;
}

.page-contact .contact-hero__contact-value {
  font-size: 15px;
  color: var(--c-text);
  word-break: break-word;
}

/* 静态表单预览 */
.page-contact .contact-form-preview {
  background: linear-gradient(160deg, rgba(23, 20, 50, 0.7) 0%, rgba(18, 16, 32, 0.95) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 26px 24px 32px;
}

.page-contact .contact-form-preview__header {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.page-contact .contact-form-preview__title {
  margin: 0;
  font-family: var(--font-headline);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text);
}

.page-contact .contact-form-preview__note {
  margin: 0;
  font-size: 13px;
  color: var(--c-muted);
}

.page-contact .contact-form-preview__body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .contact-form-preview__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .contact-form-preview__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-fluorescent-pink);
}

.page-contact .contact-form-preview__value {
  background: rgba(9, 6, 15, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 11px 14px;
  font-size: 14px;
  color: var(--c-text);
  word-break: break-word;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.page-contact .contact-form-preview__value:hover {
  border-color: rgba(0, 229, 255, 0.5);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.18);
}

.page-contact .contact-form-preview__footer {
  margin-top: 18px;
}

.page-contact .contact-form-preview__action {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: var(--c-bg);
  font-family: var(--font-headline);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 13px 18px;
  text-transform: uppercase;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

/* ===== 联系渠道 ===== */
.page-contact .contact-channels {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 20px 0;
}

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

.page-contact .contact-channels__lead {
  color: var(--c-muted);
  font-size: 15px;
  max-width: 620px;
  margin: 0;
}

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

.page-contact .contact-channels__visual {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  min-height: 200px;
}

.page-contact .contact-channels__visual-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.1);
}

.page-contact .contact-channels__visual-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to top, rgba(9, 6, 15, 0.9), transparent);
  font-size: 12px;
  color: var(--c-electric-blue);
  letter-spacing: 0.2em;
}

.page-contact .contact-channels__cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .contact-channel-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--c-surface);
  padding: 22px 24px;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.page-contact .contact-channel-card:hover {
  transform: translateX(6px);
  border-color: rgba(167, 43, 250, 0.55);
  box-shadow: 0 0 28px rgba(167, 43, 250, 0.18);
}

.page-contact .contact-channel-card__index {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-neon-purple);
  border-bottom: 1px solid rgba(167, 43, 250, 0.4);
  padding-bottom: 4px;
  margin-bottom: 10px;
}

.page-contact .contact-channel-card h3 {
  font-size: 17px;
  margin: 0 0 10px;
  letter-spacing: 0.02em;
}

.page-contact .contact-channel-card__value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-electric-blue);
  margin-bottom: 12px;
  word-break: break-word;
}

.page-contact .contact-channel-card__desc {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.65;
  margin: 0;
}

/* ===== 反馈流程 ===== */
.page-contact .contact-flow {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 20px 0;
}

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

.page-contact .contact-flow__lead {
  color: var(--c-muted);
  font-size: 15px;
  max-width: 620px;
  margin: 0;
}

.page-contact .contact-flow__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .contact-flow__step {
  position: relative;
  padding: 0 0 30px 60px;
  border-left: 1px solid rgba(167, 43, 250, 0.28);
}

.page-contact .contact-flow__step::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--c-neon-purple);
  box-shadow: 0 0 14px rgba(167, 43, 250, 0.9);
}

.page-contact .contact-flow__step--last {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-contact .contact-flow__number {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-fluorescent-pink);
  margin-bottom: 4px;
}

.page-contact .contact-flow__content h3 {
  margin: 0 0 6px;
  font-size: 16px;
  letter-spacing: 0.02em;
}

.page-contact .contact-flow__content p {
  margin: 0;
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.65;
}

.page-contact .contact-flow__note {
  margin-top: 24px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.page-contact .contact-flow__note .mono {
  color: var(--c-electric-blue);
  font-size: 12px;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.page-contact .contact-flow__note p {
  margin: 0;
  font-size: 14px;
  color: var(--c-muted);
}

.page-contact .contact-flow__note a {
  color: var(--c-electric-blue);
}

.page-contact .contact-flow__visual {
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.page-contact .contact-flow__img {
  width: 100%;
  height: auto;
  display: block;
  filter: hue-rotate(10deg) saturate(0.8) contrast(1.05);
}

/* ===== 合作联系 ===== */
.page-contact .contact-coop {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 20px 0;
}

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

.page-contact .contact-coop__sub {
  color: var(--c-muted);
  font-size: 15px;
  margin: 0;
  max-width: 620px;
}

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

.page-contact .contact-coop__intro {
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 24px;
  padding: 20px 22px;
  background: rgba(167, 43, 250, 0.08);
  border-left: 4px solid var(--c-neon-purple);
  color: var(--c-text);
}

.page-contact .contact-coop__topics {
  background: var(--c-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 24px;
}

.page-contact .contact-coop__topics-title {
  margin: 0 0 14px;
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-text);
}

.page-contact .contact-coop__topics ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .contact-coop__topics li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.page-contact .contact-coop__topics li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-contact .contact-coop__topics .mono {
  color: var(--c-neon-purple);
  font-size: 14px;
  letter-spacing: 0.04em;
}

.page-contact .contact-coop__topics li span:last-child {
  color: var(--c-muted);
  font-size: 14px;
}

.page-contact .contact-coop__aside {
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.1) 0%, rgba(167, 43, 250, 0.12) 100%);
  border: 1px solid rgba(0, 229, 255, 0.25);
  padding: 26px 24px;
}

.page-contact .contact-coop__aside h3 {
  margin: 0 0 14px;
  font-size: 16px;
}

.page-contact .contact-coop__promises {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: var(--c-muted);
}

.page-contact .contact-coop__promises li {
  position: relative;
  padding-left: 22px;
}

.page-contact .contact-coop__promises li::before {
  content: "▶";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--c-fluorescent-pink);
  font-size: 9px;
}

.page-contact .contact-coop__aside .btn + .btn {
  margin-top: 10px;
}

/* ===== 运维地图带 ===== */
.page-contact .contact-map {
  margin-top: 80px;
  padding: 34px 20px 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background-color: var(--c-surface);
  background-image:
    linear-gradient(90deg, rgba(167, 43, 250, 0.09) 1px, transparent 1px),
    linear-gradient(rgba(167, 43, 250, 0.09) 1px, transparent 1px),
    radial-gradient(ellipse at 20% 50%, rgba(255, 42, 109, 0.16), transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 229, 255, 0.12), transparent 60%);
  background-size: 32px 32px, 32px 32px, 100% 100%, 100% 100%;
  text-align: center;
}

.page-contact .contact-map__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-neon-purple);
  margin: 0 0 8px;
}

.page-contact .contact-map__label::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--c-success);
  box-shadow: 0 0 12px var(--c-success);
  vertical-align: 2px;
}

.page-contact .contact-map__value {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.03em;
  color: var(--c-text);
  margin: 0 0 6px;
}

.page-contact .contact-map__hint {
  font-size: 13px;
  color: var(--c-muted);
  margin: 0;
}

/* ===== 桌面增强 ===== */
@media (min-width: 760px) {
  .page-contact .contact-channel-card:nth-child(2) {
    margin-left: 12px;
  }

  .page-contact .contact-channel-card:nth-child(3) {
    margin-left: 24px;
  }

  .page-contact .contact-coop__layout {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: stretch;
  }

  .page-contact .contact-coop__aside {
    justify-content: center;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__frame {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .page-contact .contact-hero__info {
    padding: 48px 44px 50px;
  }

  .page-contact .contact-hero__info::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, var(--c-neon-purple), transparent, var(--c-electric-blue));
  }

  .page-contact .contact-form-preview {
    border-top: 0;
    padding: 44px 34px;
  }

  .page-contact .contact-channels__layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 22px;
  }

  .page-contact .contact-channels__visual {
    min-height: 400px;
  }

  .page-contact .contact-channels__visual-img {
    height: 100%;
    min-height: 400px;
  }

  .page-contact .contact-flow__layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 36px;
  }

  .page-contact .contact-flow__visual {
    display: flex;
  }

  .page-contact .contact-flow__img {
    height: 100%;
    object-fit: cover;
  }
}

/* ===== 动效降级 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-contact .contact-map__label::before {
    animation: contactMapPulse 2.4s ease-in-out infinite;
  }
}

@keyframes contactMapPulse {
  0%, 100% {
    box-shadow: 0 0 6px var(--c-success);
    opacity: 0.7;
  }
  50% {
    box-shadow: 0 0 20px var(--c-success);
    opacity: 1;
  }
}