.page-contact {
  --pc-panel-2: #0A211C;
  --pc-paper-line: rgba(27, 35, 32, .16);
  --pc-paper-ink: #46524C;
  --pc-paper-accent: #0E6B5B;
  background: var(--ink);
  color: var(--white);
  overflow-x: hidden;
}

.page-contact .section {
  padding-top: 54px;
  padding-bottom: 54px;
}

@media (min-width: 900px) {
  .page-contact .section {
    padding-top: 84px;
    padding-bottom: 84px;
  }
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 22px 0 42px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 100% at 88% -20%, rgba(79, 240, 208, .12), transparent 62%),
    radial-gradient(80% 80% at 0% 110%, rgba(255, 122, 61, .10), transparent 60%),
    var(--ink);
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 38px 0 70px;
  }
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.page-contact .contact-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .28;
  filter: grayscale(.25) contrast(1.08);
}

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, var(--ink) 0%, rgba(7, 26, 22, .74) 48%, rgba(7, 26, 22, .95) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
}

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

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

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

.page-contact .contact-hero__title {
  margin: 10px 0 16px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 64px);
  line-height: 1.05;
  letter-spacing: -.012em;
}

.page-contact .contact-hero__lead {
  margin: 0 0 26px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: #C9DAD4;
}

@media (min-width: 760px) {
  .page-contact .contact-hero__lead {
    font-size: 17px;
  }
}

.page-contact .contact-hero__lines {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed rgba(143, 167, 159, .35);
}

.page-contact .contact-hero__lines li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px dashed rgba(143, 167, 159, .35);
}

.page-contact .contact-hero__lines li:last-child {
  border-bottom: 0;
}

.page-contact .contact-hero__key {
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .contact-hero__val {
  font-family: var(--font-numeric);
  font-size: 14px;
  letter-spacing: .01em;
  color: var(--cyan);
  word-break: break-all;
}

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

  .page-contact .contact-hero__lines li {
    padding: 16px 22px;
    border-bottom: 0;
    border-left: 1px dashed rgba(143, 167, 159, .35);
  }

  .page-contact .contact-hero__lines li:first-child {
    padding-left: 0;
    border-left: 0;
  }
}

/* ---------- 章节标题 ---------- */
.page-contact .contact-head {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}

@media (min-width: 900px) {
  .page-contact .contact-head {
    margin-bottom: 38px;
    max-width: 78ch;
  }
}

.page-contact .contact-head .section-index {
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .contact-head .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 5.4vw, 40px);
  line-height: 1.12;
  letter-spacing: -.01em;
}

.page-contact .contact-head__note {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 渠道 ---------- */
.page-contact .channel-split {
  display: grid;
  gap: 20px;
}

.page-contact .channel-col {
  display: grid;
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  padding: 18px 20px 20px;
  background: linear-gradient(158deg, var(--panel), var(--pc-panel-2));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), transparent);
}

.page-contact .channel-card--live::before {
  background: linear-gradient(180deg, var(--orange), transparent);
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: rgba(79, 240, 208, .45);
}

.page-contact .channel-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .channel-card__type {
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .channel-card__value {
  margin: 12px 0 8px;
  font-family: var(--font-numeric);
  font-size: 14px;
  line-height: 1.5;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .channel-card__value--lg {
  font-size: clamp(22px, 5.6vw, 30px);
  letter-spacing: .02em;
  color: var(--orange);
}

.page-contact .channel-card__value--link {
  display: inline-block;
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 240, 208, .5);
  padding-bottom: 2px;
}

.page-contact .channel-card__value--link:hover,
.page-contact .channel-card__value--link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-contact .channel-card__desc {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channel-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-contact .channel-card__tags span {
  padding: 3px 8px;
  border: 1px solid var(--line);
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-contact .channel-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6.6fr);
    gap: 36px;
    align-items: start;
  }

  .page-contact .channel-col {
    gap: 18px;
  }

  .page-contact .channel-col > *:nth-child(even) {
    margin-left: 26px;
  }
}

/* ---------- 渠道右栏 ---------- */
.page-contact .channel-aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .aside-card {
  position: relative;
  padding: 22px;
  background: linear-gradient(150deg, var(--panel), var(--pc-panel-2));
  border: 1px solid var(--line);
}

.page-contact .aside-card::after {
  content: "";
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  border-top: 1px solid var(--cyan);
  border-right: 1px solid var(--cyan);
  opacity: .55;
}

.page-contact .aside-card h3 {
  margin: 8px 0 10px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.26;
}

.page-contact .aside-card p {
  margin: 0 0 18px;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

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

.page-contact .step-list li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .step-list__num {
  padding-top: 2px;
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-contact .step-list h4 {
  margin: 0 0 4px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
}

.page-contact .step-list p {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .resp-band {
  padding: 16px 18px;
  background: rgba(255, 122, 61, .09);
  border-left: 3px solid var(--orange);
}

.page-contact .resp-band p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--white);
}

.page-contact .resp-band .resp-band__title {
  margin: 0 0 6px;
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--orange);
}

/* ---------- 商务与媒体 ---------- */
.page-contact .coop-layout {
  display: grid;
  gap: 22px;
}

.page-contact .coop-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .coop-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .coop-grid {
  display: grid;
  gap: 14px;
}

.page-contact .coop-card {
  padding: 18px 18px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .coop-card__num {
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .coop-card h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.25;
}

.page-contact .coop-card p {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .coop-card .coop-card__label {
  margin: 0 0 8px;
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-contact .coop-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-contact .coop-card__list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--white);
}

.page-contact .coop-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: var(--cyan);
}

.page-contact .coop-note {
  margin: 22px 0 0;
  padding: 14px 16px;
  border: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.78;
  color: var(--mist);
}

@media (min-width: 700px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 980px) {
  .page-contact .coop-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 34px;
    align-items: start;
  }
}

/* ---------- 提交前准备 ---------- */
.page-contact .prep-grid {
  display: grid;
  border-top: 1px solid var(--line);
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .prep-item__num {
  font-family: var(--font-numeric);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .prep-item h3 {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
}

.page-contact .prep-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .prep-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-contact .prep-links a {
  padding: 8px 12px;
  border: 1px solid var(--line);
  font-family: var(--font-numeric);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}

.page-contact .prep-links a:hover,
.page-contact .prep-links a:focus-visible {
  border-color: var(--cyan);
  background: rgba(79, 240, 208, .08);
}

@media (min-width: 760px) {
  .page-contact .prep-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 34px;
  }
}

/* ---------- 地址 ---------- */
.page-contact .section--paper {
  color: var(--graphite);
}

.page-contact .section--paper .contact-head .section-index,
.page-contact .section--paper .eyebrow {
  color: var(--pc-paper-accent);
}

.page-contact .section--paper .contact-head__note {
  color: var(--pc-paper-ink);
}

.page-contact .address-grid {
  display: grid;
  gap: 22px;
}

.page-contact .address-card {
  position: relative;
  padding: 24px 22px;
  background: var(--white);
  border: 1px solid var(--pc-paper-line);
  box-shadow: 6px 6px 0 rgba(27, 35, 32, .12);
}

.page-contact .address-card::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 22px;
  width: 5px;
  height: 46px;
  background: var(--orange);
}

.page-contact .address-card__line {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 4.4vw, 28px);
  line-height: 1.32;
  letter-spacing: -.005em;
  color: var(--graphite);
}

.page-contact .address-card__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--pc-paper-line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--pc-paper-ink);
}

.page-contact .address-meta {
  margin: 0;
  display: grid;
  border-top: 1px solid var(--pc-paper-line);
}

.page-contact .address-meta > div {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--pc-paper-line);
}

.page-contact .address-meta dt {
  padding-top: 2px;
  font-family: var(--font-numeric);
  font-size: 11px;
  letter-spacing: .12em;
  color: #5A655F;
}

.page-contact .address-meta dd {
  margin: 0;
  font-family: var(--font-numeric);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--graphite);
  word-break: break-all;
}

@media (min-width: 900px) {
  .page-contact .address-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 36px;
    align-items: start;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .prep-links a {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-col > *:nth-child(even) {
    transform: none;
  }
}