.page-contact {
  --contact-red: #E63946;
  --contact-red-bright: #FF6B6B;
  --contact-black: #0B0B0D;
  --contact-graphite: #1A1A1D;
  --contact-cyan: #00F5D4;
  --contact-gray: #9A9A9A;
  --contact-white: #FFFFFF;
  --contact-light: #F5F5F5;
}

/* ========== Hero 区域 ========== */
.page-contact__hero {
  background: linear-gradient(135deg, var(--ak-black) 0%, var(--ak-graphite) 55%, #101013 100%);
  position: relative;
  overflow: hidden;
  padding-bottom: 4.5rem;
}

.page-contact__hero::before {
  content: "";
  position: absolute;
  right: -8%;
  top: -12%;
  width: 36%;
  height: 130%;
  background: linear-gradient(160deg, rgba(230, 57, 70, 0.35) 0%, rgba(0, 245, 212, 0.08) 100%);
  clip-path: polygon(30% 0, 100% 0, 72% 100%, 0 100%);
  pointer-events: none;
}

.page-contact__hero::after {
  content: "";
  position: absolute;
  right: 14%;
  top: 28%;
  width: 8px;
  height: 120px;
  background: var(--ak-cyan);
  transform: rotate(-18deg) skewX(-12deg);
  box-shadow: 0 0 22px rgba(0, 245, 212, 0.55);
  opacity: 0.7;
  pointer-events: none;
}

.page-contact__hero-grid {
  display: grid;
  gap: 2.5rem;
  position: relative;
  z-index: 1;
}

.page-contact__hero-main {
  max-width: 820px;
}

.page-contact__hero-main .ak-tag {
  margin-bottom: 1rem;
}

.page-contact__hero-main h1 {
  font-family: var(--ak-font-heading);
  font-size: 2.6rem;
  line-height: 1.02;
  letter-spacing: 0.01em;
  color: var(--ak-white);
  text-transform: uppercase;
  margin: 0.5rem 0 1.4rem;
  border-left: 6px solid var(--contact-red);
  padding-left: 1.1rem;
}

.page-contact__hero-lead {
  font-family: var(--ak-font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ak-gray);
  max-width: 560px;
  margin: 0;
}

.page-contact__hero-aside {
  background: var(--contact-graphite);
  border: 1px solid rgba(230, 57, 70, 0.5);
  border-left: 5px solid var(--contact-red);
  padding: 1.4rem 1.6rem;
  border-radius: var(--ak-radius);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: 260px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-contact__hero-aside-label {
  font-family: var(--ak-font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ak-cyan);
  text-transform: uppercase;
}

.page-contact__hero-aside-time {
  font-family: var(--ak-font-heading);
  font-size: 1.55rem;
  line-height: 1.25;
  color: var(--ak-white);
  font-weight: 400;
}

.page-contact__hero-aside-sub {
  font-family: var(--ak-font-body);
  font-size: 0.85rem;
  color: var(--ak-gray);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 0.6rem;
}

/* ========== 通用区块头部 ========== */
.page-contact__section-head {
  margin-bottom: 2.4rem;
}

.page-contact__section-head .ak-tag {
  margin-bottom: 0.75rem;
}

.page-contact__section-head h2 {
  font-family: var(--ak-font-heading);
  font-size: 2rem;
  line-height: 1.08;
  color: var(--ak-black);
  text-transform: uppercase;
  margin: 0.4rem 0 0.7rem;
}

.page-contact__section-head p:last-child {
  font-family: var(--ak-font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  color: #555;
  max-width: 520px;
  margin: 0;
}

.page-contact__section-head--biz h2 {
  color: var(--ak-white);
}

.page-contact__section-head--biz p:last-child {
  color: rgba(255, 255, 255, 0.7);
}

/* ========== 用户服务区 ========== */
.page-contact__support {
  background: var(--ak-light);
  position: relative;
}

.page-contact__support::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 6px;
  width: 60%;
  background: linear-gradient(90deg, var(--contact-red) 0%, rgba(230, 57, 70, 0.2) 100%);
}

.page-contact__support-grid {
  display: grid;
  gap: 1.5rem;
}

.page-contact__card--support {
  position: relative;
  background: var(--ak-white);
  border: 1px solid #e6e6e6;
  border-radius: var(--ak-radius-lg);
  padding: 1.8rem 1.6rem 1.6rem;
  transition: transform var(--ak-transition-base), box-shadow var(--ak-transition-base), border-color var(--ak-transition-base);
  overflow: hidden;
}

.page-contact__card--support:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.08);
  border-color: var(--contact-red);
}

.page-contact__card--support::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, transparent 50%, rgba(230, 57, 70, 0.13) 50%, rgba(230, 57, 70, 0.13) 100%);
  border-radius: var(--ak-radius-lg) 0 0 0;
}

.page-contact__card-index {
  position: absolute;
  top: 1rem;
  right: 1.1rem;
  font-family: var(--ak-font-heading);
  font-size: 1.1rem;
  color: rgba(0, 0, 0, 0.1);
}

.page-contact__card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--contact-black);
  color: var(--ak-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.page-contact__card--support h3 {
  font-family: var(--ak-font-body);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ak-black);
  margin: 0 0 0.4rem;
}

.page-contact__mail,
.page-contact__phone {
  font-family: var(--ak-font-body);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--contact-red);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  word-break: break-all;
  transition: color var(--ak-transition-fast);
}

.page-contact__mail::before,
.page-contact__phone::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--ak-cyan);
  flex-shrink: 0;
}

.page-contact__mail:hover,
.page-contact__phone:hover {
  color: var(--contact-red-bright);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact__note {
  font-family: var(--ak-font-body);
  font-size: 0.85rem;
  color: var(--ak-gray);
  margin: 0.5rem 0 0;
}

.page-contact__media--support {
  margin: 0;
}

.page-contact__media--support .ak-media {
  overflow: hidden;
  border-radius: var(--ak-radius-lg);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.08);
}

.page-contact__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact__media figcaption {
  font-family: var(--ak-font-body);
  font-size: 0.82rem;
  color: var(--ak-gray);
  padding: 0.6rem 0.2rem 0;
  text-align: right;
}

.page-contact__support-tip {
  margin-top: 1.8rem;
  font-family: var(--ak-font-body);
  font-size: 0.92rem;
  color: #333;
  background: var(--ak-white);
  border-left: 4px solid var(--ak-cyan);
  padding: 0.9rem 1.1rem;
  border-radius: var(--ak-radius);
}

.page-contact__support-tip a {
  color: var(--contact-red);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ========== 商务合作区 ========== */
.page-contact__biz {
  background: var(--contact-black);
  position: relative;
}

.page-contact__biz-card {
  background: var(--contact-graphite);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--ak-radius-lg);
  padding: 1.8rem 1.6rem;
  position: relative;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.page-contact__biz-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--contact-red), var(--ak-cyan));
}

.page-contact__biz-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.55rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.page-contact__biz-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact__biz-label {
  font-family: var(--ak-font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ak-cyan);
  text-transform: uppercase;
}

.page-contact__biz-row .page-contact__mail {
  color: var(--ak-white);
  font-size: 1.12rem;
}

.page-contact__biz-row .page-contact__mail::before {
  background: var(--contact-red);
}

.page-contact__biz-row .page-contact__mail:hover {
  color: var(--ak-cyan);
}

.page-contact__biz-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-contact__biz-tags .ak-tag {
  background: rgba(0, 245, 212, 0.08);
  color: var(--ak-cyan);
  border: 1px solid rgba(0, 245, 212, 0.25);
  border-radius: var(--ak-radius-pill);
  padding: 0.35rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 500;
}

.page-contact__biz-row p {
  font-family: var(--ak-font-body);
  font-size: 0.92rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.72);
  margin: 0;
}

/* ========== 公司地址区 ========== */
.page-contact__address {
  background: var(--ak-white);
}

.page-contact__address-grid {
  display: grid;
  gap: 1.6rem;
}

.page-contact__address-card {
  background: linear-gradient(135deg, #f9f9f9 0%, var(--ak-light) 100%);
  border: 1px solid #ddd;
  border-left: 6px solid var(--contact-red);
  border-radius: var(--ak-radius-lg);
  padding: 1.8rem 1.6rem;
  position: relative;
}

.page-contact__address-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--contact-black);
  color: var(--contact-red);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.page-contact__address-card h3 {
  font-family: var(--ak-font-heading);
  font-size: 1.28rem;
  line-height: 1.3;
  color: var(--ak-black);
  margin: 0 0 0.6rem;
  text-transform: uppercase;
}

.page-contact__address-card p {
  font-family: var(--ak-font-body);
  font-size: 0.92rem;
  line-height: 1.65;
  color: #555;
  margin: 0;
}

.page-contact__media--address {
  margin: 0;
}

.page-contact__media--address .ak-media {
  overflow: hidden;
  border-radius: var(--ak-radius-lg);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.page-contact__media--address img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ========== 响应时效区 ========== */
.page-contact__response {
  background: linear-gradient(150deg, var(--contact-black) 0%, #151518 70%, var(--contact-graphite) 100%);
  position: relative;
  overflow: hidden;
}

.page-contact__response::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--contact-red) 0%, var(--contact-cyan) 100%);
}

.page-contact__response .page-contact__section-head h2 {
  color: var(--ak-white);
}

.page-contact__response .page-contact__section-head p:last-child {
  color: rgba(255, 255, 255, 0.64);
}

.page-contact__response-grid {
  display: grid;
  gap: 1.2rem;
}

.page-contact__response-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 4px solid rgba(0, 245, 212, 0.6);
  border-radius: var(--ak-radius);
  padding: 1.35rem 1.4rem;
  position: relative;
  transition: border-color var(--ak-transition-base), transform var(--ak-transition-base);
}

.page-contact__response-item:hover {
  border-left-color: var(--contact-red);
  transform: translateX(5px);
}

.page-contact__response-num {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  font-family: var(--ak-font-heading);
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.12);
}

.page-contact__response-label {
  font-family: var(--ak-font-body);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ak-cyan);
  margin: 0 0 0.4rem;
}

.page-contact__response-value {
  font-family: var(--ak-font-body);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--ak-white);
}

.page-contact__response-note {
  margin-top: 2.2rem;
  font-family: var(--ak-font-body);
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  border-left: 3px solid var(--contact-red);
  padding-left: 1rem;
  max-width: 700px;
}

/* ========== 更多信息区 ========== */
.page-contact__more {
  background: var(--ak-light);
}

.page-contact__more-grid {
  display: grid;
  gap: 1.4rem;
}

.page-contact__more-card {
  background: var(--ak-white);
  border: 1px solid #e6e6e6;
  border-radius: var(--ak-radius-lg);
  padding: 1.6rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform var(--ak-transition-base), box-shadow var(--ak-transition-base), border-color var(--ak-transition-base);
}

.page-contact__more-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.09);
  border-color: var(--contact-red);
}

.page-contact__more-index {
  position: absolute;
  top: 0.8rem;
  right: 1rem;
  font-family: var(--ak-font-heading);
  font-size: 1.3rem;
  color: rgba(0, 0, 0, 0.07);
}

.page-contact__more-label {
  font-family: var(--ak-font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ak-cyan);
  background: var(--contact-black);
  padding: 0.2rem 0.7rem;
  border-radius: var(--ak-radius-pill);
  align-self: flex-start;
  margin-bottom: 0.5rem;
}

.page-contact__more-title {
  font-family: var(--ak-font-heading);
  font-size: 1.25rem;
  line-height: 1.25;
  color: var(--ak-black);
  text-transform: uppercase;
  font-weight: 400;
}

.page-contact__more-desc {
  font-family: var(--ak-font-body);
  font-size: 0.88rem;
  color: var(--ak-gray);
  line-height: 1.5;
}

/* ========== 桌面端增强 ========== */
@media (min-width: 768px) {
  .page-contact__hero {
    padding-bottom: 5.5rem;
  }

  .page-contact__hero-grid {
    display: grid;
    grid-template-columns: 1fr 280px;
    align-items: end;
    gap: 3rem;
  }

  .page-contact__hero-main h1 {
    font-size: 4rem;
  }

  .page-contact__hero-lead {
    font-size: 1.08rem;
    line-height: 1.75;
  }

  .page-contact__support-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.6rem;
    align-items: stretch;
  }

  .page-contact__media--support {
    grid-column: 1 / -1;
  }

  .page-contact__biz-card {
    padding: 2.4rem 2.6rem;
    max-width: 860px;
  }

  .page-contact__biz-row {
    grid-template-columns: 160px 1fr;
    align-items: center;
    gap: 1.2rem;
  }

  .page-contact__address-grid {
    grid-template-columns: 1.1fr 1.4fr;
    align-items: center;
    gap: 2.2rem;
  }

  .page-contact__address-card {
    padding: 2.2rem 2rem;
  }

  .page-contact__response-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.4rem;
  }

  .page-contact__response-item {
    padding: 1.7rem 1.6rem;
  }

  .page-contact__more-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-contact__more-card {
    min-height: 210px;
  }
}