.page-contact {
  --c-rail: 336px;
  --c-line-soft: rgba(53, 224, 206, 0.2);
  background: var(--ink-900);
  color: var(--chalk);
}

.page-contact .contact-hero__inner,
.page-contact .contact-body__grid,
.page-contact .contact-band__inner {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--rail);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-900);
  padding-block: clamp(2.6rem, 7vw, 4.4rem) clamp(4.4rem, 10vw, 7rem);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: clamp(26px, 5vw, 58px);
  background: var(--lily);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  z-index: 1;
}

.page-contact .contact-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.55) brightness(0.6);
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(103deg,
      rgba(8, 22, 30, 0.95) 36%,
      rgba(8, 22, 30, 0.74) 66%,
      rgba(23, 80, 92, 0.52) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
}

.page-contact .contact-hero .crumbs {
  font-family: var(--font-data);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--haze);
}

.page-contact .contact-hero .crumbs a {
  color: var(--haze);
  text-decoration: none;
}

.page-contact .contact-hero .crumbs a:hover {
  color: var(--cyan);
}

.page-contact .contact-hero .crumbs__sep {
  margin-inline: 0.5rem;
  color: rgba(199, 182, 204, 0.55);
}

.page-contact .contact-hero__eyebrow {
  margin-top: 1.5rem;
  color: var(--cyan);
}

.page-contact .contact-hero__title {
  margin: 0.9rem 0 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(2.05rem, 5.4vw, 3.9rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--chalk);
  max-width: 19ch;
}

.page-contact .contact-hero__lede {
  margin: 1.3rem 0 0;
  max-width: 56ch;
  font-size: clamp(0.94rem, 1.6vw, 1.06rem);
  line-height: 1.85;
  color: rgba(246, 248, 247, 0.78);
}

/* ---------- 主体分栏 ---------- */
.page-contact .contact-body {
  background: var(--lily);
  color: var(--ink-800);
  padding-block: clamp(2.4rem, 6vw, 4.4rem) clamp(3rem, 7vw, 5.4rem);
}

.page-contact .contact-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.8rem, 4vw, 2.6rem);
}

/* ---------- 渠道板 ---------- */
.page-contact .contact-channels {
  padding: clamp(1.3rem, 3vw, 1.9rem);
  background: var(--ink-900);
  color: var(--chalk);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-contact .contact-channels__eyebrow {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .contact-channels__title {
  margin: 0.6rem 0 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .contact-channel-list {
  list-style: none;
  margin: 1.35rem 0 0;
  padding: 0;
}

.page-contact .contact-channel {
  display: block;
  padding-block: 1.05rem;
  border-top: 1px solid var(--c-line-soft);
}

.page-contact .contact-channel:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-channel__label {
  display: block;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .contact-channel__val {
  display: block;
  margin-top: 0.42rem;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--chalk);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-channel__fit {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--haze);
}

.page-contact .contact-hours {
  margin-top: 1.4rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(199, 182, 204, 0.2);
}

.page-contact .contact-hours__label {
  display: block;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--haze);
}

.page-contact .contact-hours__num {
  display: block;
  margin-top: 0.3rem;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.85rem, 5vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

/* ---------- 长文区 ---------- */
.page-contact .contact-main {
  min-width: 0;
}

.page-contact .contact-main > * + * {
  margin-top: clamp(2.2rem, 5vw, 3.4rem);
}

.page-contact .contact-sec__eyebrow {
  margin: 0;
  color: var(--deep);
}

.page-contact .contact-sec__title {
  margin: 0.55rem 0 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(1.42rem, 3.4vw, 1.98rem);
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}

.page-contact .contact-sec__lede {
  margin: 0.85rem 0 0;
  max-width: 52ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: rgba(14, 36, 48, 0.82);
}

/* 四项信息 */
.page-contact .contact-fields {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
}

.page-contact .contact-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.25rem;
  padding-block: 0.85rem;
  border-top: 1px solid var(--line-ink);
}

.page-contact .contact-field__name {
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--deep);
}

.page-contact .contact-field__desc {
  font-size: 0.92rem;
  line-height: 1.72;
  color: rgba(14, 36, 48, 0.8);
}

/* 填写块 */
.page-contact .contact-scribe {
  margin-top: 1.4rem;
  padding: clamp(1rem, 3vw, 1.45rem);
  border: 1.5px dashed rgba(23, 80, 92, 0.42);
  background: rgba(255, 255, 255, 0.55);
}

.page-contact .contact-scribe__row {
  display: grid;
  grid-template-columns: minmax(0, 5.6em) minmax(0, 1fr);
  gap: 0.7rem;
  margin: 0;
  padding-block: 0.55rem;
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-contact .contact-scribe__row + .contact-scribe__row {
  border-top: 1px dotted rgba(14, 36, 48, 0.22);
}

.page-contact .contact-scribe__key {
  font-family: var(--font-data);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--steel);
  padding-top: 0.2rem;
}

.page-contact .contact-scribe__val {
  min-width: 0;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

/* 反馈类型筛选 */
.page-contact .contact-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.35rem;
}

.page-contact .contact-filters .filter-chip {
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  padding: 0.45rem 0.9rem;
  border: 1px solid rgba(14, 36, 48, 0.22);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-800);
  cursor: pointer;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .contact-filters .filter-chip:hover {
  border-color: var(--deep);
  color: var(--deep);
}

.page-contact .contact-filters .filter-chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}

.page-contact .contact-types {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.page-contact .contact-type {
  display: grid;
  grid-template-columns: 2.2em minmax(0, 1fr);
  gap: 0.75rem;
  padding-block: 1.1rem;
  border-top: 1px solid var(--line-ink);
}

.page-contact .contact-type.is-filtered-out {
  display: none;
}

.page-contact .contact-type__no {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 0.76rem;
  color: var(--steel);
  padding-top: 0.32rem;
}

.page-contact .contact-type__body {
  min-width: 0;
}

.page-contact .contact-type__name {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-contact .contact-type__desc {
  margin: 0.45rem 0 0;
  font-size: 0.92rem;
  line-height: 1.76;
  color: rgba(14, 36, 48, 0.8);
}

/* 处理流程 */
.page-contact .contact-flow {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.6rem;
}

.page-contact .contact-flow__media {
  margin: 0;
  overflow: hidden;
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .contact-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.02);
  transition: transform 0.6s var(--ease);
}

.page-contact .contact-flow__media:hover img {
  transform: scale(1.03);
}

.page-contact .contact-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .contact-step {
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr);
  gap: 0.85rem;
  padding-block: 0.9rem;
  border-top: 1px solid var(--line-ink);
}

.page-contact .contact-step:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-step__no {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  color: var(--deep);
  padding-top: 0.22rem;
}

.page-contact .contact-step__body {
  min-width: 0;
}

.page-contact .contact-step__title {
  margin: 0;
  font-size: 0.96rem;
  font-weight: 500;
  color: var(--ink-900);
}

.page-contact .contact-step__body p {
  margin: 0.3rem 0 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: rgba(14, 36, 48, 0.78);
}

/* 合作与建议 */
.page-contact .contact-collab {
  padding: clamp(1.35rem, 3.6vw, 2.2rem);
  background: var(--ink-800);
  color: var(--chalk);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-contact .contact-collab__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(1.32rem, 3vw, 1.76rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .contact-collab__body {
  margin: 0.85rem 0 0;
  max-width: 52ch;
  font-size: 0.94rem;
  line-height: 1.82;
  color: rgba(246, 248, 247, 0.78);
}

.page-contact .contact-collab__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem 1.5rem;
  margin-top: 1.4rem;
}

.page-contact .contact-collab__btn {
  flex: 0 0 auto;
}

.page-contact .contact-collab__link {
  font-size: 0.88rem;
  color: var(--haze);
  text-decoration: none;
  border-bottom: 1px solid rgba(199, 182, 204, 0.35);
  padding-bottom: 0.12rem;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

/* ---------- 横向信息带 ---------- */
.page-contact .contact-band {
  background: var(--ink-900);
  padding-block: clamp(1.2rem, 3vw, 1.8rem);
  border-top: 1px solid var(--c-line-soft);
}

.page-contact .contact-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1.5rem;
  font-family: var(--font-data);
  font-size: 0.73rem;
  letter-spacing: 0.05em;
  color: var(--haze);
}

.page-contact .contact-band__icp,
.page-contact .contact-band__region,
.page-contact .contact-band__time {
  margin: 0;
}

.page-contact .contact-band__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  margin-left: auto;
}

.page-contact .contact-band__links a {
  color: var(--haze);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 0.1rem;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .contact-field {
    grid-template-columns: minmax(0, 7.2em) minmax(0, 1fr);
    gap: 1.1rem;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-flow {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    gap: clamp(1.6rem, 3vw, 2.4rem);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-body__grid {
    grid-template-columns: minmax(0, 1fr) var(--c-rail);
    gap: clamp(2rem, 4vw, 3.6rem);
    align-items: start;
  }

  .page-contact .contact-main {
    grid-column: 1;
    grid-row: 1;
  }

  .page-contact .contact-rail {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: calc(var(--header-h) + 1.6rem);
  }
}

@media (min-width: 1200px) {
  .page-contact {
    --c-rail: 364px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-flow__media img,
  .page-contact .contact-filters .filter-chip,
  .page-contact .contact-collab__link,
  .page-contact .contact-band__links a {
    transition: none;
  }

  .page-contact .contact-flow__media:hover img {
    transform: none;
  }
}