.page-contact {
  --contact-pad: clamp(18px, 5vw, 24px);
  --contact-hair: rgba(216, 207, 188, 0.16);
  --contact-hair-strong: rgba(216, 207, 188, 0.34);
  --contact-paper-ink: #10203A;
  --contact-paper-body: #3D4C66;
  --contact-paper-link: #B4471A;
  display: block;
  overflow-x: clip;
}

.page-contact .shell,
.page-contact .shell-narrow {
  padding-inline: var(--contact-pad);
  box-sizing: border-box;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  max-width: var(--shell);
  margin: 20px auto 0;
  padding-inline: var(--contact-pad);
  font-size: 13px;
  color: var(--c-steel);
}

.page-contact .breadcrumb a {
  color: var(--c-cyan);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: 26px 0 0;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 8vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--c-white);
  max-width: 15em;
}

.page-contact .contact-hero__lede {
  margin: 18px 0 0;
  max-width: 36em;
  color: var(--c-steel);
  font-size: 16px;
  line-height: 1.85;
}

.page-contact .contact-hero__quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin: 22px 0 0;
  padding: 12px 14px;
  max-width: 580px;
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-md);
  background: linear-gradient(120deg, rgba(53, 230, 208, 0.12), rgba(18, 41, 74, 0.72) 62%);
}

.page-contact .contact-hero__quick-label {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-cyan);
  flex: 0 0 auto;
}

.page-contact .contact-hero__quick-value {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--c-white);
  word-break: break-all;
  flex: 1 1 190px;
  min-width: 0;
}

.page-contact .contact-hero__quick .copy-btn {
  flex: 0 0 auto;
}

.page-contact .contact-hero__points {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  font-size: 14px;
  color: var(--c-steel);
}

.page-contact .contact-hero__points li {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-contact .contact-hero__points strong {
  font-family: var(--font-data);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-orange);
}

.page-contact .contact-hero__figure {
  margin: 30px auto 0;
  width: min(calc(100% - 2 * var(--contact-pad)), var(--shell));
}

/* ---------- 联系渠道 ---------- */
.page-contact .contact-channels {
  padding: clamp(48px, 8vw, 84px) 0;
}

.page-contact .contact-channels__grid {
  display: grid;
  gap: 34px;
}

.page-contact .contact-channels__main h2,
.page-contact .contact-channels__aside h2,
.page-contact .contact-biz__head h2,
.page-contact .contact-sla__head h2,
.page-contact .contact-visit__text h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 5.4vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-contact .contact-channels__intro {
  margin: 14px 0 0;
  max-width: 36em;
  color: var(--c-steel);
  line-height: 1.85;
}

.page-contact .contact-channel {
  margin-top: 16px;
  padding: 20px;
  border-radius: var(--radius-lg);
  display: grid;
  gap: 10px;
  justify-items: start;
}

.page-contact .contact-channel__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .contact-channel__ico {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--contact-hair-strong);
  background: rgba(53, 230, 208, 0.08);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
  flex: 0 0 auto;
}

.page-contact .contact-channel__value {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(17px, 4.4vw, 22px);
  line-height: 1.4;
  color: var(--c-white);
  word-break: break-all;
}

.page-contact .contact-channel__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-steel);
}

.page-contact .contact-channels__aside {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--contact-hair);
  background: linear-gradient(158deg, rgba(162, 75, 255, 0.22), rgba(255, 61, 139, 0.12) 52%, rgba(11, 27, 51, 0.9));
}

.page-contact .contact-channels__aside p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-steel);
}

.page-contact .contact-channels__aside .sync-bar {
  margin-top: 18px;
}

.page-contact .contact-aside__steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-aside__steps li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-white);
}

.page-contact .contact-aside__steps li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-violet);
  box-shadow: 0 0 0 3px rgba(162, 75, 255, 0.22);
}

.page-contact .contact-aside__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 20px;
  font-size: 14px;
}

.page-contact .contact-aside__links a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 208, 0.4);
  padding-bottom: 2px;
}

.page-contact .contact-aside__links a:hover {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 反馈流程 ---------- */
.page-contact .contact-flow {
  padding: clamp(48px, 8vw, 84px) 0;
}

.page-contact .contact-flow .label {
  color: #8A7550;
}

.page-contact .contact-flow__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 5.4vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--contact-paper-ink);
}

.page-contact .contact-flow__head p {
  margin: 16px 0 0;
  line-height: 1.9;
  color: var(--contact-paper-body);
}

.page-contact .contact-flow__body {
  margin-top: 32px;
}

.page-contact .contact-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-step {
  position: relative;
  padding: 22px 20px;
  border: 2px solid var(--c-line);
  border-radius: var(--radius-md);
  background: #FBF8F1;
  box-shadow: 0 16px 30px -26px rgba(11, 27, 51, 0.9);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-contact .contact-step:hover,
.page-contact .contact-step:focus-within {
  border-color: var(--c-orange);
  transform: translateY(-2px);
  box-shadow: 0 22px 36px -26px rgba(11, 27, 51, 0.95);
}

.page-contact .contact-step__idx {
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 2px solid rgba(255, 122, 47, 0.38);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-orange);
}

.page-contact .contact-step h3 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--contact-paper-ink);
}

.page-contact .contact-step > p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--contact-paper-body);
}

.page-contact .contact-step__more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed rgba(16, 32, 58, 0.18);
}

.page-contact .contact-step__more summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--contact-paper-ink);
}

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

.page-contact .contact-step__more summary::before {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--c-orange);
  color: #FFF7F0;
  font-size: 13px;
  line-height: 1;
  flex: 0 0 auto;
}

.page-contact .contact-step__more[open] summary::before {
  content: "−";
}

.page-contact .contact-step__more ul {
  margin: 10px 0 0;
  padding-left: 26px;
  display: grid;
  gap: 6px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--contact-paper-body);
}

.page-contact .contact-step__more li::marker {
  color: var(--c-orange);
}

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

.page-contact .contact-flow__link {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--contact-paper-body);
}

.page-contact .contact-flow__link a {
  color: var(--contact-paper-link);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 商务合作 ---------- */
.page-contact .contact-biz {
  padding: clamp(48px, 8vw, 84px) 0;
}

.page-contact .contact-biz__head p {
  margin: 16px 0 0;
  max-width: 42em;
  line-height: 1.85;
  color: var(--c-steel);
}

.page-contact .contact-biz__grid {
  margin-top: 30px;
}

.page-contact .contact-biz__card {
  grid-column: span 12;
  padding: 20px;
  border-radius: var(--radius-md);
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-contact .contact-biz__card h3 {
  margin: 4px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-contact .contact-biz__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-steel);
}

.page-contact .contact-biz__card .contact-biz__more {
  max-height: 0;
  margin-top: 0;
  opacity: 0;
  overflow: hidden;
  color: var(--c-cyan);
  transition: max-height 0.4s var(--ease), opacity 0.3s var(--ease), margin-top 0.4s var(--ease);
}

.page-contact .contact-biz__foot {
  margin: 26px 0 0;
  font-size: 14px;
  color: var(--c-steel);
}

.page-contact .contact-biz__foot a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 208, 0.4);
}

/* ---------- 响应时间 ---------- */
.page-contact .contact-sla {
  padding: 0 0 clamp(48px, 8vw, 84px);
}

.page-contact .contact-sla__grid {
  margin-top: 30px;
  display: grid;
  gap: 18px;
}

.page-contact .contact-sla__item {
  padding: 22px 20px;
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(18, 41, 74, 0.92), rgba(11, 27, 51, 0.6));
}

.page-contact .contact-sla__item .stat-num {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(24px, 6vw, 32px);
  line-height: 1.1;
  color: var(--c-orange);
}

.page-contact .contact-sla__item .stat-key {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-contact .contact-sla__item p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-steel);
}

.page-contact .contact-sla__note {
  padding: 22px 20px;
  border: 1px dashed var(--contact-hair-strong);
  border-radius: var(--radius-lg);
  background: rgba(9, 17, 32, 0.55);
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-steel);
}

.page-contact .contact-sla__note p {
  margin: 0;
}

.page-contact .contact-sla__note p + p {
  margin-top: 10px;
}

/* ---------- 地址 ---------- */
.page-contact .contact-visit {
  padding: 0 0 clamp(56px, 9vw, 96px);
}

.page-contact .contact-visit__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-visit__addr {
  margin: 18px 0 0;
  font-family: var(--font-data);
  font-size: clamp(16px, 4.2vw, 20px);
  line-height: 1.7;
  color: var(--c-cyan);
}

.page-contact .contact-visit__more {
  margin-top: 16px;
  max-width: 34em;
}

.page-contact .contact-visit__more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--contact-hair-strong);
  font-size: 14px;
  color: var(--c-white);
}

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

.page-contact .contact-visit__more summary::after {
  content: "▾";
  font-size: 12px;
  color: var(--c-cyan);
}

.page-contact .contact-visit__more[open] summary::after {
  content: "▴";
}

.page-contact .contact-visit__more p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-steel);
}

.page-contact .contact-visit__icp {
  margin: 20px 0 0;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-steel);
}

.page-contact .contact-map {
  position: relative;
  min-height: 230px;
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: rgba(9, 17, 32, 0.7);
  background-image:
    linear-gradient(to right, rgba(216, 207, 188, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(216, 207, 188, 0.12) 1px, transparent 1px);
  background-size: 38px 38px;
}

.page-contact .contact-map__pin {
  position: absolute;
  left: 46%;
  top: 44%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-orange);
  box-shadow: 0 0 0 6px rgba(255, 122, 47, 0.22), 0 0 0 16px rgba(255, 122, 47, 0.08);
}

.page-contact .contact-map__pin::after {
  content: "";
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 122, 47, 0.42);
  animation: contact-ping 2.8s var(--ease) infinite;
}

@keyframes contact-ping {
  0% { transform: scale(0.6); opacity: 0.9; }
  70% { transform: scale(1.4); opacity: 0; }
  100% { transform: scale(1.4); opacity: 0; }
}

.page-contact .contact-map__label {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 5px 12px;
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-pill);
  background: rgba(11, 27, 51, 0.78);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-steel);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-biz__card {
    grid-column: span 6;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .contact-flow__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .contact-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 42px;
    right: -20px;
    width: 20px;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--c-line) 0 4px, transparent 4px 8px);
  }

  .page-contact .contact-sla__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 44px;
    align-items: center;
  }

  .page-contact .contact-hero h1 {
    max-width: 14em;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-biz__card {
    grid-column: span 7;
  }

  .page-contact .contact-biz__card:nth-child(2),
  .page-contact .contact-biz__card:nth-child(3) {
    grid-column: span 5;
  }
}

@media (hover: hover) and (min-width: 720px) {
  .page-contact .contact-biz__card:hover .contact-biz__more,
  .page-contact .contact-biz__card:focus .contact-biz__more,
  .page-contact .contact-biz__card:focus-within .contact-biz__more {
    max-height: 220px;
    margin-top: 4px;
    opacity: 1;
  }
}

@media (hover: none), (max-width: 719px) {
  .page-contact .contact-biz__card .contact-biz__more {
    max-height: none;
    margin-top: 4px;
    opacity: 1;
  }
}

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

  .page-contact .contact-biz__card .contact-biz__more,
  .page-contact .contact-step {
    transition: none;
  }

  .page-contact .contact-step:hover,
  .page-contact .contact-step:focus-within {
    transform: none;
  }
}