.page-contact {
  --ct-red: #E63946;
  --ct-red-soft: #FF4D4F;
  --ct-gold: #FFD700;
  --ct-panel: #121A29;
  --ct-panel-soft: #0D1420;
  --ct-line: rgba(255, 255, 255, 0.14);
  --ct-notch: 18px;
  background: var(--by-bg);
  color: var(--by-white);
}

/* ===== Hero ===== */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  padding: 34px 0 68px;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 88% 8%, rgba(29, 53, 87, 0.5) 0%, transparent 54%),
    linear-gradient(180deg, rgba(5, 11, 20, 0.2) 0%, var(--by-bg) 100%);
}

.page-contact .contact-hero__sky {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.page-contact .contact-hero__sky svg {
  position: absolute;
  inset: auto 0 0 0;
  width: 100%;
  height: 100%;
  min-height: 300px;
}

.page-contact .contact-hero::after {
  content: "联系";
  position: absolute;
  right: -3%;
  top: 5%;
  z-index: -1;
  font-family: var(--by-font-head);
  font-weight: 900;
  font-size: clamp(6rem, 22vw, 15rem);
  line-height: 1;
  color: rgba(255, 255, 255, 0.04);
  letter-spacing: -0.05em;
  pointer-events: none;
}

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

.page-contact .contact-hero__breadcrumb {
  margin-bottom: 26px;
}

.page-contact .contact-hero__title {
  margin: 12px 0 20px;
  max-width: 860px;
  font-size: clamp(2.6rem, 7.5vw, 5.4rem);
  line-height: 0.95;
}

.page-contact .contact-hero__lead {
  max-width: 660px;
  margin-bottom: 22px;
}

.page-contact .contact-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 34px;
}

.page-contact .contact-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 720px;
  border: 1px solid var(--ct-line);
  background: var(--ct-line);
}

.page-contact .contact-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px 18px;
  background: rgba(10, 15, 26, 0.9);
}

.page-contact .contact-hero__stat-value {
  font-family: var(--by-font-num);
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1;
  color: var(--ct-gold);
}

.page-contact .contact-hero__stat-label {
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--by-gray);
}

/* ===== 客服邮箱与热线 ===== */
.page-contact .contact-channel {
  padding: 72px 0 48px;
}

.page-contact .contact-channel__head {
  margin-bottom: 34px;
}

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

.page-contact .channel-card {
  position: relative;
  padding: 40px 26px 30px;
  background: var(--ct-panel);
  border: 1px solid var(--ct-line);
  clip-path: polygon(0 0, calc(100% - var(--ct-notch)) 0, 100% var(--ct-notch), 100% 100%, var(--ct-notch) 100%, 0 calc(100% - var(--ct-notch)));
  transition: transform 0.4s var(--by-ease), border-color 0.3s ease;
}

.page-contact .channel-card--email {
  background:
    radial-gradient(140% 120% at 0% 100%, rgba(255, 215, 0, 0.1) 0%, transparent 42%),
    var(--ct-panel);
}

.page-contact .channel-card--phone {
  background:
    radial-gradient(140% 120% at 100% 0%, rgba(230, 57, 70, 0.22) 0%, transparent 45%),
    var(--ct-panel);
  border-color: rgba(230, 57, 70, 0.38);
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(230, 57, 70, 0.6);
}

.page-contact .channel-card__index {
  margin: 0 0 18px;
  font-family: var(--by-font-num);
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  color: var(--ct-gold);
}

.page-contact .channel-card__label {
  margin: 0 0 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--by-gray);
}

.page-contact .channel-card__mail {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--by-font-num);
  font-weight: 700;
  font-size: clamp(1rem, 3.4vw, 1.55rem);
  line-height: 1.3;
  color: var(--ct-gold);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 2px solid transparent;
  transition: border-color 0.25s ease;
}

.page-contact .channel-card__mail:hover {
  border-bottom-color: rgba(255, 215, 0, 0.55);
}

.page-contact .channel-card__tel {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.04em;
  margin: 4px 0 14px;
  font-family: var(--by-font-num);
  font-weight: 700;
  font-size: clamp(1.7rem, 7.5vw, 4.8rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--by-white);
  text-decoration: none;
  transition: color 0.25s ease;
}

.page-contact .channel-card__tel:hover {
  color: var(--ct-red-soft);
}

.page-contact .tel-sep {
  color: var(--ct-red);
}

.page-contact .channel-card__intro {
  margin: 0 0 16px;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--by-gray);
}

.page-contact .channel-card__action {
  margin: 4px 0 26px;
}

.page-contact .channel-card__scope-title {
  margin: 0 0 10px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--by-gray);
}

.page-contact .channel-card__scope {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .channel-card__scope li {
  position: relative;
  padding-left: 18px;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--by-gray);
}

.page-contact .channel-card__scope li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 9px;
  height: 2px;
  background: var(--ct-red);
}

.page-contact .contact-channel__form-note {
  margin: 30px 0 0;
}

/* ===== 服务时段 ===== */
.page-contact .contact-time {
  position: relative;
  margin-top: 64px;
  padding: 64px 0 68px;
  overflow: hidden;
  background:
    linear-gradient(100deg, rgba(230, 57, 70, 0.14) 0%, transparent 42%),
    var(--ct-panel-soft);
}

.page-contact .contact-time::before {
  content: "";
  position: absolute;
  left: -90px;
  top: -130px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(230, 57, 70, 0.25);
  border-radius: 50%;
  pointer-events: none;
}

.page-contact .contact-time__grid {
  display: grid;
  gap: 34px;
  align-items: center;
}

.page-contact .contact-time__list {
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .contact-time__item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-time__item dt {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--by-gray);
}

.page-contact .contact-time__item dd {
  margin: 0;
  text-align: right;
  font-size: 0.92rem;
  color: var(--by-white);
}

.page-contact .contact-time__figure {
  margin: 0;
}

.page-contact .contact-time__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

/* ===== 联系地址 ===== */
.page-contact .contact-address {
  padding: 76px 0 24px;
}

.page-contact .contact-address__grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-contact .contact-address__copy .by-lead {
  margin-bottom: 6px;
}

.page-contact .contact-address__street {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 22px 0;
  padding: 22px 20px;
  font-style: normal;
  font-family: var(--by-font-head);
  font-size: clamp(1.4rem, 4.4vw, 2.2rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--by-white);
  background: rgba(230, 57, 70, 0.1);
  border-left: 4px solid var(--ct-red);
}

.page-contact .contact-address__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ct-red-soft);
}

.page-contact .contact-address__note {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--by-gray);
}

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

.page-contact .contact-address__map {
  margin: 0;
}

.page-contact .map-wrap {
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

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

.page-contact .map-pin {
  position: absolute;
  top: 38%;
  left: 56%;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ct-red);
  border: 2px solid rgba(255, 255, 255, 0.88);
  box-shadow: 0 0 0 0 rgba(230, 57, 70, 0.55);
  animation: ct-map-pulse 2.2s ease-out infinite;
  pointer-events: none;
}

@keyframes ct-map-pulse {
  0% { box-shadow: 0 0 0 0 rgba(230, 57, 70, 0.55); }
  70% { box-shadow: 0 0 0 18px rgba(230, 57, 70, 0); }
  100% { box-shadow: 0 0 0 0 rgba(230, 57, 70, 0); }
}

.page-contact .map-coord {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 6px 10px;
  background: rgba(5, 11, 20, 0.84);
  border-left: 2px solid var(--ct-gold);
  font-family: var(--by-font-num);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ct-gold);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.28s ease, transform 0.28s var(--by-ease);
  pointer-events: none;
}

.page-contact .map-wrap:hover .map-coord,
.page-contact .map-wrap:focus-within .map-coord {
  opacity: 1;
  transform: translateY(0);
}

.page-contact .contact-address__caption {
  margin-top: 12px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--by-gray);
}

/* ===== 咨询前准备 ===== */
.page-contact .contact-prep {
  padding: 64px 0 72px;
}

.page-contact .contact-prep .by-title {
  margin: 0 0 34px;
}

.page-contact .contact-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .contact-prep__item {
  position: relative;
  padding: 30px 24px 26px;
  background: var(--ct-panel);
  border: 1px solid var(--ct-line);
  border-top: 3px solid var(--ct-red);
  transition: transform 0.3s var(--by-ease), background 0.3s ease;
}

.page-contact .contact-prep__item:hover {
  transform: translateY(-3px);
  background: #152134;
}

.page-contact .contact-prep__num {
  display: block;
  margin-bottom: 16px;
  font-family: var(--by-font-num);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(230, 57, 70, 0.45);
}

.page-contact .contact-prep__name {
  margin: 0 0 8px;
  font-size: 1.1rem;
  color: var(--by-white);
}

.page-contact .contact-prep__desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--by-gray);
}

.page-contact .contact-prep__hint {
  margin-top: 26px;
  padding-left: 14px;
  border-left: 3px solid var(--ct-gold);
  font-size: 0.85rem;
  color: var(--by-gray);
}

/* ===== 常见问题索引 ===== */
.page-contact .contact-faq {
  padding: 30px 0 76px;
  background: linear-gradient(180deg, transparent 0%, rgba(29, 53, 87, 0.28) 100%);
}

.page-contact .contact-faq__inner {
  display: grid;
  gap: 34px;
  align-items: start;
}

.page-contact .contact-faq__intro .by-lead {
  margin-bottom: 0;
}

.page-contact .contact-faq__list {
  margin: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .contact-faq__list li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 14px;
  padding: 17px 4px;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-faq__list .by-index-list__num {
  font-family: var(--by-font-num);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ct-red);
}

.page-contact .contact-faq__list .by-index-list__link {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--by-white);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-contact .contact-faq__list .by-index-list__link:hover {
  color: var(--ct-red-soft);
}

.page-contact .contact-faq__list .by-index-list__meta {
  font-size: 0.72rem;
  white-space: nowrap;
  color: var(--by-gray);
  background: rgba(255, 255, 255, 0.06);
  padding: 4px 8px;
}

/* ===== 其他联系信息 ===== */
.page-contact .contact-extra {
  padding: 40px 0 84px;
}

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

.page-contact .contact-extra__item {
  position: relative;
  padding: 28px 24px;
  background: var(--ct-panel-soft);
  border: 1px solid var(--ct-line);
}

.page-contact .contact-extra__item::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-top: 22px solid var(--ct-red);
  border-left: 22px solid transparent;
}

.page-contact .contact-extra__name {
  margin: 0 0 10px;
  font-size: 1rem;
  color: var(--by-white);
}

.page-contact .contact-extra__mail,
.page-contact .contact-extra__link {
  display: inline-block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--ct-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 215, 0, 0.3);
  transition: border-color 0.2s ease;
}

.page-contact .contact-extra__mail:hover,
.page-contact .contact-extra__link:hover {
  border-bottom-color: var(--ct-gold);
}

.page-contact .contact-extra__desc {
  margin: 0 0 6px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--by-gray);
}

/* ===== 桌面端 ===== */
@media (min-width: 720px) {
  .page-contact .contact-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .contact-hero__stat {
    padding: 18px 20px;
  }

  .page-contact .contact-hero__stat-value {
    font-size: 2rem;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-time {
    margin-top: 90px;
    padding: 80px 0 84px;
  }

  .page-contact .contact-time__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
  }

  .page-contact .contact-extra__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .contact-faq__inner {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 56px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 60px 0 92px;
  }

  .page-contact .contact-channel {
    padding: 96px 0 56px;
  }

  .page-contact .contact-channel__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 36px;
  }

  .page-contact .contact-address {
    padding: 92px 0 24px;
  }

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

  .page-contact .contact-prep__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .contact-prep__hint {
    max-width: 720px;
  }
}

@media (max-width: 520px) {
  .page-contact .contact-faq__list li {
    grid-template-columns: auto 1fr;
  }

  .page-contact .contact-faq__list .by-index-list__meta {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .map-pin {
    animation: none;
  }

  .page-contact .channel-card,
  .page-contact .contact-prep__item,
  .page-contact .map-coord {
    transition: none;
  }
}