.page-contact {
  background: var(--paper);
  color: var(--ink);
}

.page-contact [id] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + 36px) 0 clamp(36px, 5vw, 68px);
  background-color: var(--paper);
  background-image:
    repeating-linear-gradient(to right, rgba(28, 20, 16, .055) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(to bottom, rgba(28, 20, 16, .055) 0 1px, transparent 1px 96px);
  overflow: hidden;
}

.page-contact .contact-hero__wrap {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

.page-contact .contact-hero__panel {
  position: relative;
  background: var(--navy);
  color: var(--white);
  padding: clamp(22px, 3.4vw, 44px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 46px), calc(100% - 46px) 100%, 0 100%);
}

.page-contact .contact-hero__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(64px, 18%, 132px);
  height: 6px;
  background: var(--flame);
}

.page-contact .contact-hero__crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .62);
}

.page-contact .contact-hero__crumbs a {
  color: rgba(255, 255, 255, .82);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

.page-contact .contact-hero__crumbs a:hover,
.page-contact .contact-hero__crumbs a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .contact-hero__title {
  margin: .34em 0 .42em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.15rem, 5.4vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  max-width: 46ch;
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.8;
  color: rgba(255, 255, 255, .84);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 0 0 clamp(20px, 2.6vw, 28px);
  padding: 0;
  display: grid;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .68);
}

.page-contact .contact-hero__facts li {
  position: relative;
  padding-left: 16px;
}

.page-contact .contact-hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 2px;
  background: var(--gold);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 首屏右侧 */

.page-contact .contact-hero__side {
  display: grid;
  gap: clamp(12px, 1.6vw, 16px);
  min-width: 0;
}

.page-contact .contact-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line-strong);
  border-bottom: 3px solid var(--flame);
  overflow: hidden;
  background: var(--sand);
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  height: clamp(160px, 30vw, 240px);
  object-fit: cover;
}

.page-contact .contact-hero__cards {
  display: grid;
  gap: clamp(10px, 1.4vw, 14px);
  min-width: 0;
}

.page-contact .channel-card {
  position: relative;
  padding: 15px 18px 16px;
  border-radius: 0;
  transition: transform .24s ease, box-shadow .24s ease;
}

.page-contact .channel-card--mail {
  background: var(--white);
  border-left: 5px solid var(--flame);
  color: var(--ink);
}

.page-contact .channel-card--phone {
  background: var(--gold);
  border-left: 5px solid var(--ink);
  color: var(--ink);
}

.page-contact .channel-card--ticket {
  background: var(--pitch);
  border-left: 5px solid var(--gold);
  color: var(--white);
}

.page-contact .channel-card__tag {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  opacity: .72;
}

.page-contact .channel-card__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.28rem;
  letter-spacing: .01em;
  line-height: 1.15;
}

.page-contact .channel-card__value {
  display: block;
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.6vw, 15px);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  width: fit-content;
  max-width: 100%;
  padding-bottom: 1px;
  transition: opacity .2s ease;
}

.page-contact .channel-card__value:hover,
.page-contact .channel-card__value:focus-visible {
  opacity: .72;
}

.page-contact .channel-card__value--plain {
  border-bottom: none;
  font-weight: 600;
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  opacity: .92;
}

.page-contact .channel-card:hover {
  transform: translateX(3px);
}

/* ---------- 工单步骤 ---------- */

.page-contact .ticket-steps {
  padding: clamp(40px, 6vw, 78px) 0;
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.page-contact .ticket-steps__title {
  margin: .2em 0 .35em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 3.2vw, 2.7rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .ticket-steps__lead {
  margin: 0 0 clamp(24px, 3.4vw, 40px);
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--slate);
}

.page-contact .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  counter-reset: step;
}

.page-contact .step {
  position: relative;
  padding: 16px 0 0;
  border-top: 2px solid var(--line-strong);
  transition: border-color .24s ease, transform .24s ease;
}

.page-contact .step:hover {
  border-top-color: var(--flame);
  transform: translateY(-3px);
}

.page-contact .step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  font-weight: 500;
  line-height: 1;
  color: var(--flame);
  font-variant-numeric: tabular-nums;
  margin-bottom: 10px;
}

.page-contact .step__title {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #4a3f38;
}

@media (min-width: 780px) {
  .page-contact .step-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 30px;
  }
}

@media (min-width: 1040px) {
  .page-contact .step-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }
}

/* ---------- 合作接入 ---------- */

.page-contact .coop {
  padding: clamp(38px, 5.6vw, 72px) 0;
  background: var(--sand);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .coop__inner {
  display: grid;
  gap: clamp(22px, 3.2vw, 40px);
  align-items: start;
}

.page-contact .coop__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line-strong);
  overflow: hidden;
  background: var(--navy);
}

.page-contact .coop__figure img {
  display: block;
  width: 100%;
  height: clamp(190px, 34vw, 300px);
  object-fit: cover;
}

.page-contact .coop__eyebrow {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--flame);
}

.page-contact .coop__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.65rem, 3vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .coop__text {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: #3d332c;
}

.page-contact .coop__list {
  list-style: none;
  margin: 18px 0 22px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .coop__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink);
}

.page-contact .coop__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 10px;
  height: 2px;
  background: var(--flame);
}

.page-contact .coop__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.page-contact .coop__link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--navy);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .coop__link:hover,
.page-contact .coop__link:focus-visible {
  color: var(--flame);
  border-bottom-color: var(--flame);
}

@media (min-width: 900px) {
  .page-contact .coop__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: center;
  }
}

/* ---------- 响应节奏 ---------- */

.page-contact .service-band {
  padding: clamp(38px, 5.4vw, 68px) 0;
  background: var(--navy);
  color: var(--white);
}

.page-contact .service-band__label {
  color: var(--gold);
}

.page-contact .service-band__title {
  margin: .18em 0 clamp(22px, 3vw, 34px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.65rem, 3vw, 2.5rem);
  line-height: 1.1;
  color: var(--white);
}

.page-contact .service-band__grid {
  display: grid;
  gap: 16px;
  margin: 0;
}

.page-contact .service-cell {
  padding: 18px 20px;
  background: rgba(255, 255, 255, .05);
  border-left: 3px solid var(--gold);
}

.page-contact .service-cell__term {
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  margin-bottom: 6px;
}

.page-contact .service-cell__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: rgba(255, 255, 255, .8);
}

@media (min-width: 820px) {
  .page-contact .service-band__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

/* ---------- 帮助跳转 ---------- */

.page-contact .help-jump {
  padding: clamp(38px, 5.4vw, 68px) 0 clamp(44px, 6vw, 82px);
  background: var(--paper);
}

.page-contact .help-jump__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 2.9vw, 2.35rem);
  line-height: 1.12;
  color: var(--ink);
}

.page-contact .help-jump__lead {
  margin: 0 0 clamp(20px, 2.8vw, 30px);
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate);
}

.page-contact .help-jump__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .help-jump__item {
  border-bottom: 1px solid var(--line);
}

.page-contact .help-jump__item a {
  display: grid;
  gap: 4px;
  padding: 16px 32px 16px 4px;
  position: relative;
  text-decoration: none;
  color: inherit;
  transition: background-color .22s ease, padding-left .22s ease;
}

.page-contact .help-jump__item a::after {
  content: "→";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  color: var(--flame);
  transition: transform .22s ease;
}

.page-contact .help-jump__item a:hover,
.page-contact .help-jump__item a:focus-visible {
  background: rgba(255, 77, 0, .07);
  padding-left: 12px;
}

.page-contact .help-jump__item a:hover::after,
.page-contact .help-jump__item a:focus-visible::after {
  transform: translate(4px, -50%);
}

.page-contact .help-jump__name {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .help-jump__desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-contact .help-jump__foot {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

@media (min-width: 760px) {
  .page-contact .help-jump__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 0;
  }
}

/* ---------- 桌面端布局 ---------- */

@media (min-width: 960px) {
  .page-contact .contact-hero__wrap {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    gap: clamp(28px, 3.4vw, 52px);
  }

  .page-contact .channel-card:nth-child(2) {
    margin-left: 7%;
  }

  .page-contact .channel-card:nth-child(3) {
    margin-left: 14%;
  }
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .step,
  .page-contact .help-jump__item a,
  .page-contact .help-jump__item a::after,
  .page-contact .coop__link,
  .page-contact .contact-hero__crumbs a {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .step:hover {
    transform: none;
  }

  .page-contact .help-jump__item a:hover,
  .page-contact .help-jump__item a:focus-visible {
    padding-left: 4px;
  }

  .page-contact .help-jump__item a:hover::after,
  .page-contact .help-jump__item a:focus-visible::after {
    transform: translateY(-50%);
  }
}
<<<END>>>