/* ============ 联系交流页专属样式 ============ */
.page-contact {
  background: var(--color-white);
  font-family: var(--font-sans);
  padding: 0;
  margin: 0;
  overflow-x: hidden;
}

.page-contact .contact-shell {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-pad) 64px;
}

/* ---- 面包屑 ---- */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 6px;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-gray);
}

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

.page-contact .breadcrumb a:hover {
  color: var(--color-blue);
}

.page-contact .breadcrumb-sep {
  color: var(--color-red);
  font-weight: 900;
}

/* ---- 标题区 ---- */
.page-contact .contact-header {
  position: relative;
  padding: 32px 0 28px;
}

.page-contact .contact-header-num {
  position: absolute;
  top: 12px;
  right: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(4rem, 10vw, 7rem);
  line-height: 1;
  color: var(--color-silver);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-header-meta {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}

.page-contact .contact-kicker {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  color: var(--color-red);
  text-transform: uppercase;
}

.page-contact .contact-header-tag {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-black);
  background: var(--color-amber);
  padding: 4px 10px;
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.page-contact .contact-header h1 {
  position: relative;
  z-index: 1;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.9rem, 4.5vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--color-black);
  margin: 0 0 18px;
  max-width: 720px;
}

.page-contact .contact-header h1::after {
  content: "";
  display: block;
  width: 88px;
  height: 6px;
  background: var(--color-red);
  margin-top: 14px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.page-contact .contact-lead {
  position: relative;
  z-index: 1;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-gray);
  max-width: 680px;
  margin: 0;
  padding-left: 18px;
  border-left: 4px solid var(--color-red);
}

/* ---- 动势斜条 ---- */
.page-contact .contact-strip {
  height: 6px;
  margin: 28px 0 0;
  background: repeating-linear-gradient(
    -45deg,
    var(--color-red) 0 14px,
    var(--color-black) 14px 28px
  );
  clip-path: polygon(0 0, 100% 0, 99% 100%, 0 100%);
}

/* ---- 主体布局 ---- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 36px;
}

/* ---- 左栏：联系通道 ---- */
.page-contact .contact-channels {
  background: var(--color-deep);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-top: 6px solid var(--color-red);
}

@media (min-width: 720px) {
  .page-contact .contact-channels {
    padding: 28px;
  }
}

.page-contact .contact-channel-label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
}

.page-contact .contact-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px;
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}

.page-contact .contact-card:hover {
  border-color: var(--color-red);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.page-contact .contact-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.page-contact .contact-index {
  font-family: var(--font-ui);
  font-weight: 900;
  font-size: 0.72rem;
  color: var(--color-white);
  background: var(--color-red);
  padding: 3px 8px;
  clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
  font-feature-settings: "tnum";
}

.page-contact .contact-type {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-silver);
  text-transform: uppercase;
}

.page-contact .contact-card h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--color-white);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.page-contact .contact-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

/* ---- 邮件卡 ---- */
.page-contact .contact-mail-box {
  background: var(--color-black);
  padding: 14px 16px;
  margin: 14px 0;
  border-left: 4px solid var(--color-red);
}

.page-contact .contact-field-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-silver);
  text-transform: uppercase;
  margin-bottom: 3px;
}

.page-contact .contact-value-mail {
  display: block;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-white);
  line-height: 1.5;
  word-break: break-all;
  margin-bottom: 10px;
  font-feature-settings: "tnum";
}

.page-contact .contact-value-mail:last-child {
  margin-bottom: 0;
}

.page-contact .contact-value-alt {
  color: var(--color-amber);
}

.page-contact .contact-response {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(255, 255, 255, 0.2);
}

.page-contact .contact-response-num {
  font-family: var(--font-ui);
  font-weight: 900;
  font-size: 2.8rem;
  line-height: 1;
  color: var(--color-red);
  font-feature-settings: "tnum";
  text-shadow: 0 0 20px rgba(255, 59, 48, 0.4);
}

.page-contact .contact-response-text {
  font-family: var(--font-ui);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--color-white);
}

.page-contact .contact-mail-figure {
  margin: 16px 0 0;
}

.page-contact .contact-mail-figure img {
  width: 100%;
  height: auto;
  max-height: 150px;
  object-fit: cover;
  display: block;
  clip-path: polygon(3% 0, 100% 0, 97% 100%, 0 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

/* ---- 电话卡 ---- */
.page-contact .contact-phone-num {
  font-family: var(--font-ui);
  font-weight: 900;
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: 0.02em;
  color: var(--color-white);
  margin: 6px 0 10px;
  font-feature-settings: "tnum";
  border-bottom: 2px solid var(--color-blue);
  display: inline-block;
  padding-bottom: 4px;
}

.page-contact .contact-phone-note {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ---- 地址卡 ---- */
.page-contact .contact-address-line {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
  line-height: 1.65;
  margin: 6px 0 10px;
}

.page-contact .contact-address-note {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  border-left: 3px solid var(--color-amber);
  padding-left: 12px;
}

/* ---- 右栏 ---- */
.page-contact .contact-aside {
  display: flex;
  flex-direction: column;
  gap: 26px;
  margin-top: 26px;
}

@media (min-width: 960px) {
  .page-contact .contact-aside {
    margin-top: 0;
  }
}

.page-contact .contact-brief {
  background: var(--color-white);
  border: 2px solid var(--color-black);
  padding: 26px 24px;
  position: relative;
  box-shadow: 8px 8px 0 var(--color-red-tint);
}

.page-contact .contact-brief-index {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  color: var(--color-red);
  text-transform: uppercase;
}

.page-contact .contact-brief h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 900;
  color: var(--color-black);
  margin: 10px 0 14px;
  letter-spacing: -0.02em;
}

.page-contact .contact-brief p {
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--color-gray);
  margin: 0 0 18px;
}

.page-contact .contact-quicklinks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .contact-quicklinks a:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

/* ---- 合作意向 ---- */
.page-contact .contact-coop {
  border: 1px solid var(--color-silver);
  padding: 24px;
  background: var(--color-white);
}

.page-contact .contact-coop h2 {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--color-black);
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}

.page-contact .contact-coop > p {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin: 0 0 10px;
}

.page-contact .contact-coop-item {
  border-bottom: 1px dashed var(--color-silver);
}

.page-contact .contact-coop-item:last-child {
  border-bottom: none;
}

.page-contact .contact-coop-item summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
}

.page-contact .contact-coop-item summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-coop-item summary:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: -2px;
}

.page-contact .contact-coop-num {
  font-family: var(--font-ui);
  font-weight: 900;
  font-size: 1rem;
  color: var(--color-red);
  background: var(--color-red-tint);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
}

.page-contact .contact-coop-name {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-black);
}

.page-contact .contact-coop-toggle {
  font-family: var(--font-ui);
  font-weight: 900;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--color-blue);
  transition: transform 0.3s ease;
}

.page-contact .contact-coop-item[open] .contact-coop-toggle {
  transform: rotate(45deg);
}

.page-contact .contact-coop-desc {
  margin: 0;
  padding: 0 0 16px 44px;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--color-gray);
}

/* ---- 地图区 ---- */
.page-contact .contact-map {
  border: 1px solid var(--color-black);
  padding: 20px;
  background: var(--color-white);
}

.page-contact .contact-map h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--color-black);
  margin: 0 0 4px;
}

.page-contact .contact-map-note {
  font-size: 0.8rem;
  color: var(--color-gray);
  margin: 0 0 14px;
}

.page-contact .contact-map-canvas {
  position: relative;
  border: 2px dashed var(--color-silver);
  padding: 8px;
  background:
    linear-gradient(rgba(176, 180, 189, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(176, 180, 189, 0.18) 1px, transparent 1px);
  background-size: 22px 22px;
}

.page-contact .contact-map-canvas img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

.page-contact .contact-map-canvas::before {
  content: "LOCATION / 石家庄";
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-white);
  background: var(--color-red);
  padding: 4px 10px;
  clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-map-canvas::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 42%;
  width: 18px;
  height: 18px;
  margin-left: -9px;
  margin-top: -18px;
  background: var(--color-red);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 6px rgba(255, 59, 48, 0.22);
  z-index: 3;
  pointer-events: none;
}

/* ---- 信任声明 ---- */
.page-contact .contact-trust {
  background: var(--color-red-tint);
  border-left: 6px solid var(--color-red);
  padding: 18px 22px;
}

.page-contact .contact-trust p {
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--color-gray);
  margin: 0 0 8px;
}

.page-contact .contact-trust p:last-child {
  margin-bottom: 0;
}

.page-contact .contact-trust a {
  color: var(--color-blue);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px dotted var(--color-blue);
}

.page-contact .contact-trust a:hover {
  color: var(--color-red);
  border-bottom-color: var(--color-red);
}

/* ---- 桌面布局 ---- */
@media (min-width: 960px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 36px;
    align-items: start;
  }
}

/* ---- 中屏双列卡片 ---- */
@media (min-width: 720px) and (max-width: 959px) {
  .page-contact .contact-channels {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-contact .contact-card-mail {
    grid-column: 1 / -1;
  }
}

/* ---- 减弱动效 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .contact-coop-toggle,
  .page-contact .contact-quicklinks a {
    transition: none;
  }
}