.page-contact {
  background: var(--deep-charcoal);
  overflow-x: hidden;
}

/* 面包屑 */
.page-contact .breadcrumb {
  margin-bottom: 26px;
}
.page-contact .breadcrumb a {
  color: rgba(255, 255, 255, 0.64);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-contact .breadcrumb a:hover {
  color: var(--antique-gold);
}
.page-contact .breadcrumb__separator {
  color: var(--primary-red);
  font-family: var(--font-data);
}
.page-contact .breadcrumb [aria-current="page"] {
  color: var(--antique-gold);
}

/* 首屏 Hero */
.page-contact .contact-hero {
  position: relative;
  padding: 46px 0 56px;
  background:
    linear-gradient(135deg, transparent 0%, transparent 72%, rgba(200, 16, 46, 0.2) 72%, rgba(200, 16, 46, 0.2) 100%),
    var(--deep-charcoal);
  color: var(--pure-white);
}
.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 120px;
  height: 6px;
  background: var(--primary-red);
  transform: skewX(-45deg);
  transform-origin: left bottom;
}
.page-contact .contact-hero__grid {
  display: grid;
  gap: 34px;
  align-items: center;
}
.page-contact .contact-hero__copy .tag {
  margin-bottom: 18px;
}
.page-contact .contact-hero__copy h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  line-height: 1.12;
  margin: 0 0 18px;
  color: var(--pure-white);
}
.page-contact .contact-hero__lead {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
  max-width: 46ch;
  margin: 0 0 26px;
}
.page-contact .contact-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-contact .contact-hero__stat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-data);
  font-size: 0.86rem;
  letter-spacing: 0.03em;
  color: var(--antique-gold);
  border: 1px solid rgba(212, 175, 55, 0.42);
  padding: 6px 12px;
  background: rgba(212, 175, 55, 0.08);
}
.page-contact .contact-hero__img img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 14px 14px 0 rgba(200, 16, 46, 0.22);
}

/* 信纸风格联系卡 */
.page-contact .contact-letter {
  background: var(--off-white);
  padding: 40px 0 46px;
}
.page-contact .contact-letter__card {
  position: relative;
  background: var(--off-white);
  border: 2px dashed rgba(26, 26, 26, 0.22);
  padding: 26px 22px 34px;
  box-shadow: 12px 12px 0 rgba(26, 26, 26, 0.08);
  overflow: hidden;
}
.page-contact .contact-letter__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  height: 3px;
  background: var(--primary-red);
  opacity: 0.88;
}
.page-contact .contact-letter__map {
  display: none;
}
.page-contact .contact-letter__items {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.page-contact .contact-letter__item {
  position: relative;
  padding: 15px 0 15px 16px;
  border-left: 3px solid var(--primary-red);
}
.page-contact .contact-letter__item + .contact-letter__item {
  border-top: 1px solid rgba(200, 16, 46, 0.16);
}
.page-contact .contact-letter__label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-gold);
  margin-bottom: 6px;
}
.page-contact .contact-letter__value {
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.55;
  color: var(--deep-charcoal);
  word-break: break-word;
}
.page-contact .contact-letter__item--email .contact-letter__value {
  font-family: var(--font-data);
  color: var(--primary-red);
  font-weight: bold;
}
.page-contact .contact-letter__note {
  display: block;
  font-family: var(--font-body);
  font-size: 0.76rem;
  line-height: 1.5;
  color: rgba(26, 26, 26, 0.5);
  margin-top: 4px;
  font-style: normal;
}

/* 客服咨询区 */
.page-contact .contact-support {
  background: var(--deep-charcoal);
  padding: 56px 0;
  color: var(--off-white);
}
.page-contact .contact-support__grid {
  display: grid;
  gap: 34px;
  align-items: center;
}
.page-contact .contact-support__copy h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.2;
  margin: 14px 0 18px;
  color: var(--pure-white);
}
.page-contact .contact-support__copy p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(245, 245, 240, 0.78);
  margin-bottom: 16px;
  max-width: 58ch;
}
.page-contact .contact-support__copy .btn--ghost {
  color: var(--pure-white);
  border-color: rgba(255, 255, 255, 0.42);
  margin-top: 8px;
}
.page-contact .contact-support__copy .btn--ghost:hover {
  border-color: var(--primary-red);
  background: var(--primary-red);
  color: var(--pure-white);
}
.page-contact .contact-support__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.page-contact .contact-support__tags span {
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  border: 1px solid rgba(212, 175, 55, 0.5);
  color: var(--antique-gold);
  background: rgba(212, 175, 55, 0.07);
}
.page-contact .contact-support__img img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

/* 商务合作 */
.page-contact .contact-partner {
  background: var(--off-white);
  padding: 56px 0 60px;
}
.page-contact .contact-partner__header {
  margin-bottom: 24px;
}
.page-contact .contact-partner__header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  line-height: 1.2;
  margin: 12px 0 0;
  color: var(--deep-charcoal);
}
.page-contact .contact-partner__details {
  border: 1px solid rgba(26, 26, 26, 0.14);
  background: var(--medium-gray);
  padding: 18px 20px;
}
.page-contact .contact-partner__details summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--primary-red);
  padding: 4px 0;
}
.page-contact .contact-partner__details summary::-webkit-details-marker {
  display: none;
}
.page-contact .contact-partner__details summary::before {
  content: "+";
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 24px;
  height: 24px;
  background: var(--primary-red);
  color: var(--pure-white);
  font-family: var(--font-data);
  font-size: 1.1rem;
  line-height: 1;
  flex: 0 0 auto;
}
.page-contact .contact-partner__details[open] summary::before {
  content: "−";
}
.page-contact .contact-partner__content {
  padding: 18px 0 6px 38px;
}
.page-contact .contact-partner__content p {
  font-family: var(--font-body);
  font-size: 0.93rem;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.82);
  margin-bottom: 14px;
  max-width: 62ch;
}
.page-contact .contact-partner__content a {
  color: var(--primary-red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 隐私与条款入口 */
.page-contact .contact-legal {
  background: var(--deep-charcoal);
  padding: 20px 0;
  border-top: 1px solid rgba(212, 175, 55, 0.36);
}
.page-contact .contact-legal__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px 16px;
  font-family: var(--font-body);
  font-size: 0.82rem;
}
.page-contact .contact-legal__inner a {
  color: rgba(245, 245, 240, 0.72);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-contact .contact-legal__inner a:hover {
  color: var(--antique-gold);
}
.page-contact .contact-legal__sep {
  color: var(--primary-red);
  font-family: var(--font-data);
}

/* 底部大号邮箱 */
.page-contact .contact-final {
  background: var(--deep-charcoal);
  padding: 64px 0 80px;
  position: relative;
  overflow: hidden;
}
.page-contact .contact-final::before {
  content: "03";
  position: absolute;
  right: -30px;
  top: -20px;
  font-family: var(--font-display);
  font-size: 9rem;
  color: rgba(255, 255, 255, 0.035);
  line-height: 1;
  pointer-events: none;
}
.page-contact .contact-final__inner {
  text-align: center;
  position: relative;
}
.page-contact .contact-final__slash {
  width: 72px;
  height: 6px;
  background: var(--primary-red);
  transform: skewX(-45deg);
  margin: 0 auto 26px;
}
.page-contact .contact-final__lead {
  font-family: var(--font-body);
  color: rgba(245, 245, 240, 0.72);
  font-size: 1rem;
  margin: 0 0 12px;
}
.page-contact .contact-final__email {
  display: inline-block;
  font-family: var(--font-data);
  font-size: clamp(1.4rem, 4.5vw, 2.4rem);
  font-weight: bold;
  letter-spacing: 0.02em;
  color: var(--primary-red);
  background: var(--pure-white);
  padding: 10px 20px;
  text-decoration: none;
  box-shadow: 10px 10px 0 rgba(200, 16, 46, 0.35);
  transition: background 0.2s ease, color 0.2s ease;
  word-break: break-all;
}
.page-contact .contact-final__email:hover {
  background: var(--primary-red);
  color: var(--pure-white);
}
.page-contact .contact-final__note {
  font-family: var(--font-body);
  font-size: 0.86rem;
  color: rgba(245, 245, 240, 0.58);
  margin: 18px 0 0;
}

/* 平板及桌面断点 */
@media (min-width: 760px) {
  .page-contact .contact-letter__card {
    padding: 30px 30px 38px;
  }
  .page-contact .contact-letter__items {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 0;
    border-top: 3px solid var(--primary-red);
    padding-top: 22px;
  }
  .page-contact .contact-letter__item {
    padding: 0 26px 0 0;
    border-left: none;
  }
  .page-contact .contact-letter__item + .contact-letter__item {
    border-top: none;
    border-left: 1px solid rgba(200, 16, 46, 0.28);
  }
  .page-contact .contact-letter__item--phone,
  .page-contact .contact-letter__item--email {
    padding-left: 26px;
  }
  .page-contact .contact-letter__map {
    display: block;
    position: absolute;
    top: 22px;
    right: 22px;
    width: 116px;
    height: 82px;
    border: 1px solid rgba(200, 16, 46, 0.24);
    background:
      linear-gradient(rgba(26, 26, 26, 0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(26, 26, 26, 0.06) 1px, transparent 1px),
      linear-gradient(45deg, rgba(200, 16, 46, 0.09) 25%, transparent 25%, transparent 75%, rgba(200, 16, 46, 0.09) 75%);
    background-size: 14px 14px, 14px 14px, 22px 22px;
    clip-path: polygon(0 0, 72% 0, 100% 30%, 100% 100%, 0 100%);
    pointer-events: none;
    opacity: 0.7;
  }
  .page-contact .contact-letter__map::after {
    content: "";
    position: absolute;
    left: 42%;
    top: 48%;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary-red);
    box-shadow: 0 0 0 6px rgba(200, 16, 46, 0.2);
  }
  .page-contact .contact-support__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
  }
  .page-contact .contact-support__copy p {
    font-size: 0.97rem;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding: 70px 0 90px;
  }
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 60px;
  }
  .page-contact .contact-hero__copy h1 {
    font-size: clamp(2rem, 3.2vw, 2.8rem);
  }
  .page-contact .contact-hero__lead {
    font-size: 1.05rem;
    margin-bottom: 30px;
  }
  .page-contact .contact-support__grid {
    gap: 64px;
  }
  .page-contact .contact-support__copy h2 {
    max-width: 18ch;
  }
  .page-contact .contact-support__img img {
    aspect-ratio: 2 / 1;
  }
  .page-contact .contact-partner__details {
    max-width: 820px;
  }
  .page-contact .contact-final {
    padding: 76px 0 92px;
  }
  .page-contact .contact-final::before {
    font-size: 12rem;
    right: -20px;
    top: -30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__copy,
  .page-contact .contact-hero__img,
  .page-contact .contact-letter__card,
  .page-contact .contact-support__copy,
  .page-contact .contact-support__img,
  .page-contact .contact-final__inner {
    transition: none;
  }
}