/* ============================================================
   page-contact — 联系我们
   ============================================================ */

.page-contact {
  --pc-line: var(--ink-graphite);
  --pc-gap: 20px;
  padding-bottom: 0;
}

.page-contact .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 面包屑 ---------- */

.page-contact .breadcrumb {
  margin: 36px 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--steel-blue);
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--ink-graphite);
}

.page-contact .breadcrumb a {
  color: var(--steel-blue);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease-out);
}

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

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--mist-white);
}

/* ---------- 页头 ---------- */

.page-contact .phead {
  max-width: 800px;
}

.page-contact .phead h1 {
  margin: 0 0 20px;
  max-width: 18ch;
}

.page-contact .phead__lede {
  margin: 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--steel-blue);
}

/* ---------- 三张联系卡 ---------- */

.page-contact .deck {
  margin-top: 52px;
}

.page-contact .deck__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .ccard {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 24px 24px;
  background: var(--ink-carbon);
  border: 2px solid var(--pc-line);
  box-shadow: var(--shadow-hard);
}

.page-contact .ccard--mail {
  border-top: 3px solid var(--red-track);
  box-shadow: var(--shadow-hard-red);
}

.page-contact .ccard__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan-neon);
}

.page-contact .ccard__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--mist-white);
}

.page-contact .ccard__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel-blue);
}

.page-contact .ccard__addr {
  display: block;
  margin: 2px 0 0;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--mist-white);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px dashed var(--pc-line);
  transition: color var(--t-fast) var(--ease-out), border-color var(--t-fast) var(--ease-out);
}

.page-contact a.ccard__addr:hover,
.page-contact a.ccard__addr:focus-visible {
  color: var(--orange-electric);
  border-bottom-color: var(--orange-electric);
}

.page-contact .ccard__addr--static {
  border-bottom-color: transparent;
  color: var(--mist-white);
}

.page-contact .ccard__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 8px;
}

.page-contact .ccard__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--steel-blue);
}

/* 复制按钮（站点脚本以 .copy-btn / [data-copy] 接管） */

.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: transparent;
  color: var(--mist-white);
  border: 2px solid var(--pc-line);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: color var(--t-fast) var(--ease-out),
              border-color var(--t-fast) var(--ease-out),
              box-shadow var(--t-fast) var(--ease-out),
              transform var(--t-fast) var(--ease-out);
}

.page-contact .copy-btn:hover {
  color: var(--orange-electric);
  border-color: var(--orange-electric);
  box-shadow: 4px 4px 0 var(--red-deep);
  transform: translate(-2px, -2px);
}

.page-contact .copy-btn__text {
  white-space: nowrap;
}

/* ---------- 首屏配图 ---------- */

.page-contact .deck__visual {
  position: relative;
  margin: 32px 0 0;
  overflow: hidden;
  background: var(--ink-carbon);
}

.page-contact .deck__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.72) contrast(1.12) brightness(.76);
}

.page-contact .deck__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(104deg,
    rgba(10, 12, 16, .94) 0%,
    rgba(10, 12, 16, .42) 46%,
    rgba(44, 242, 208, .07) 100%);
}

.page-contact .deck__caption {
  margin: 14px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--red-track);
  font-size: 14px;
  line-height: 1.65;
  color: var(--steel-blue);
}

/* ---------- 邮件优先 ---------- */

.page-contact .mailband {
  margin-top: 72px;
  padding: 56px 0;
  background: var(--ink-carbon);
  border-top: 2px solid var(--pc-line);
  border-bottom: 2px solid var(--pc-line);
}

.page-contact .mailband__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-contact .mailband__lead h2 {
  margin: 12px 0 18px;
}

.page-contact .mailband__lead p {
  margin: 0 0 14px;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel-blue);
}

.page-contact .mailband__sla {
  display: inline-block;
  margin-top: 6px;
  padding: 10px 16px;
  border: 2px solid var(--orange-electric);
  color: var(--mist-white) !important;
  font-size: 15px !important;
  box-shadow: 4px 4px 0 var(--red-deep);
}

.page-contact .mailband__sla strong {
  color: var(--orange-electric);
}

.page-contact .checklist {
  margin: 0;
  padding: 24px 24px 24px 24px;
  list-style: none;
  background: var(--ink-void);
  border: 2px solid var(--pc-line);
  border-left: 3px solid var(--cyan-neon);
}

.page-contact .checklist li {
  position: relative;
  padding: 0 0 0 26px;
  margin-bottom: 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist-white);
}

.page-contact .checklist li:last-child {
  margin-bottom: 0;
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--cyan-neon);
}

/* ---------- 电话咨询 ---------- */

.page-contact .phoneline {
  margin-top: 72px;
}

.page-contact .phoneline__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .phoneline__body h2 {
  margin: 12px 0 18px;
}

.page-contact .phoneline__body p {
  margin: 0 0 14px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel-blue);
}

.page-contact .phoneline__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
  align-self: start;
}

.page-contact .phoneline__steps li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--ink-carbon);
  border: 2px solid var(--pc-line);
  font-size: 15px;
  line-height: 1.65;
  color: var(--mist-white);
}

.page-contact .phoneline__steps .mono {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--orange-electric);
}

/* ---------- 通信地址与来信 ---------- */

.page-contact .letter {
  margin-top: 72px;
}

.page-contact .letter__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-contact .letter__body h2 {
  margin: 12px 0 18px;
}

.page-contact .letter__body > p {
  margin: 0 0 16px;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel-blue);
}

.page-contact .letter__addr {
  margin: 22px 0;
  padding: 18px 20px;
  display: block;
  font-family: var(--font-mono);
  font-size: 16px;
  font-style: normal;
  letter-spacing: .02em;
  color: var(--mist-white);
  background: var(--ink-carbon);
  border: 2px solid var(--pc-line);
  border-left: 3px solid var(--red-track);
  box-shadow: 6px 6px 0 var(--ink-graphite);
}

.page-contact .letter__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel-blue);
}

.page-contact .letter__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink-carbon);
  border: 2px solid var(--pc-line);
}

.page-contact .letter__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.6) contrast(1.15) brightness(.7) hue-rotate(-6deg);
}

.page-contact .letter__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(160deg,
    rgba(10, 12, 16, .55) 0%,
    rgba(74, 16, 13, .28) 60%,
    rgba(10, 12, 16, .85) 100%);
}

.page-contact .letter__route {
  display: block;
  width: 100%;
  height: 44px;
  margin: 36px 0 0;
  overflow: visible;
}

.page-contact .letter__routelabel {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--steel-blue);
}

/* ---------- 合作与媒体 ---------- */

.page-contact .partner {
  margin-top: 72px;
}

.page-contact .partner h2 {
  margin: 12px 0 14px;
}

.page-contact .partner__lede {
  margin: 0 0 28px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--steel-blue);
}

.page-contact .partner__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  border-bottom: 2px solid var(--pc-line);
}

.page-contact .partner__tab {
  appearance: none;
  padding: 14px 22px;
  background: transparent;
  border: 2px solid transparent;
  border-bottom: none;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--steel-blue);
  cursor: pointer;
  transform: translateY(2px);
  transition: color var(--t-fast) var(--ease-out),
              background var(--t-fast) var(--ease-out);
}

.page-contact .partner__tab:hover {
  color: var(--mist-white);
  background: var(--ink-carbon);
}

.page-contact .partner__tab[aria-selected="true"] {
  color: var(--mist-white);
  background: var(--ink-carbon);
  border-color: var(--pc-line);
  border-top: 3px solid var(--red-track);
}

.page-contact .partner__panels {
  display: grid;
  gap: 2px;
}

.page-contact .partner__panel {
  padding: 26px 24px;
  background: var(--ink-carbon);
  border-left: 3px solid var(--cyan-neon);
}

.page-contact .partner__panel h3 {
  margin: 0 0 12px;
}

.page-contact .partner__panel p {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel-blue);
}

.page-contact .partner__subject {
  margin: 0 !important;
  padding-top: 14px;
  border-top: 1px dashed var(--pc-line);
  font-size: 13px !important;
  letter-spacing: .02em;
  color: var(--orange-electric) !important;
}

/* ---------- 咨询准备 ---------- */

.page-contact .prep {
  margin-top: 72px;
}

.page-contact .prep h2 {
  margin: 12px 0 26px;
}

.page-contact .prep__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.page-contact .prep__list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: var(--ink-carbon);
  border: 2px solid var(--pc-line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel-blue);
}

.page-contact .prep__list strong {
  color: var(--mist-white);
}

.page-contact .prep__tick {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  border: 2px solid var(--cyan-neon);
}

.page-contact .prep__tick::after {
  content: "";
  position: absolute;
  left: 3px;
  top: -1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--orange-electric);
  border-bottom: 2px solid var(--orange-electric);
  transform: rotate(42deg);
}

/* ---------- 响应与跟进 ---------- */

.page-contact .resp {
  margin-top: 72px;
}

.page-contact .resp h2 {
  margin: 12px 0 26px;
}

.page-contact .resp__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-contact .resp__item {
  position: relative;
  padding: 24px 22px 24px 80px;
  background: var(--ink-carbon);
  border: 2px solid var(--pc-line);
}

.page-contact .resp__num {
  position: absolute;
  left: 20px;
  top: 22px;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--ink-graphite);
  -webkit-text-stroke: 1px var(--red-track);
}

.page-contact .resp__title {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--mist-white);
}

.page-contact .resp__item p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel-blue);
}

/* ---------- 底部速度线带 ---------- */

.page-contact .speedband {
  position: relative;
  margin-top: 88px;
  padding: 34px 0 40px;
  background: var(--ink-carbon);
}

.page-contact .speedband::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: repeating-linear-gradient(90deg,
    var(--red-track) 0 36px,
    transparent 36px 64px);
}

.page-contact .speedband__inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .speedband__brand {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--mist-white);
}

.page-contact .speedband__line {
  margin: 0;
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--cyan-neon);
  overflow-wrap: anywhere;
}

.page-contact .speedband__icp {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--steel-blue);
}

/* ============================================================
   窄屏微调
   ============================================================ */

@media (max-width: 520px) {
  .page-contact .phead__lede,
  .page-contact .mailband__lead p,
  .page-contact .phoneline__body p,
  .page-contact .letter__body > p,
  .page-contact .partner__lede {
    font-size: 15px;
  }

  .page-contact .ccard {
    padding: 22px 18px 20px;
  }

  .page-contact .resp__item {
    padding: 22px 18px 22px 68px;
  }

  .page-contact .resp__num {
    left: 16px;
    font-size: 22px;
  }

  .page-contact .partner__tab {
    padding: 12px 14px;
    font-size: 14px;
  }

  .page-contact .speedband__line {
    font-size: 13px;
  }
}

/* ============================================================
   平板与桌面
   ============================================================ */

@media (min-width: 720px) {
  .page-contact .prep__list {
    grid-template-columns: 1fr 1fr;
  }

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

  .page-contact .speedband__inner {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .deck__grid {
    grid-template-columns: 5fr 4fr 3fr;
    align-items: start;
  }

  .page-contact .ccard--mail {
    padding-bottom: 28px;
  }

  .page-contact .deck__visual {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 44px), 0 100%);
  }

  .page-contact .mailband__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
  }

  .page-contact .phoneline__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-contact .letter__grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: center;
  }

  .page-contact .partner__panels {
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    gap: 2px;
  }
}

@media (min-width: 1100px) {
  .page-contact .phead__lede {
    font-size: 18px;
  }

  .page-contact .prep__list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================================
   降低动效偏好
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .ccard__addr,
  .page-contact .breadcrumb a,
  .page-contact .partner__tab {
    transition: none;
  }

  .page-contact .copy-btn:hover {
    transform: none;
    box-shadow: none;
  }
}
<<<END>>>