.page-contact {
  --c-rule-soft: rgba(19, 19, 24, .12);
  --c-jade-wash: rgba(15, 138, 107, .07);
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
}

/* —— 首屏封面 —— */
.page-contact .c-hero {
  position: relative;
  padding-top: clamp(20px, 3.4vw, 42px);
  padding-bottom: clamp(26px, 4.6vw, 56px);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.page-contact .c-hero::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -16%;
  width: min(640px, 80vw);
  height: 168%;
  background-image:
    repeating-linear-gradient(0deg, rgba(15, 138, 107, .13) 0 1px, transparent 1px 36px),
    repeating-linear-gradient(90deg, rgba(15, 138, 107, .13) 0 1px, transparent 1px 36px);
  transform: skewX(-12deg);
  opacity: .7;
  pointer-events: none;
}

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

.page-contact .c-hero__title {
  margin: 12px 0 0;
  max-width: 15em;
  font-size: clamp(31px, 6.1vw, 72px);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -.015em;
}

.page-contact .c-hero__lede {
  margin: 22px 0 0;
  max-width: 44em;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .c-hero__channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: clamp(24px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink);
}

.page-contact .c-hero__channels li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 15px 0 4px;
}

.page-contact .c-k {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink-soft);
}

.page-contact .c-v {
  font-size: 14.5px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

/* —— 主体两栏 —— */
.page-contact .c-board {
  padding-top: clamp(34px, 5.6vw, 76px);
}

.page-contact .c-board__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: start;
}

.page-contact .c-col {
  min-width: 0;
}

.page-contact .c-block + .c-block {
  margin-top: clamp(32px, 4.6vw, 58px);
}

.page-contact .c-block__idx {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--jade);
}

.page-contact .c-block__title {
  margin: 0 0 20px;
  padding-bottom: 12px;
  font-size: clamp(19px, 2.3vw, 26px);
  font-weight: 600;
  line-height: 1.35;
  border-bottom: 1px solid var(--ink);
}

/* —— 类型切换 —— */
.page-contact .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--rule);
}

.page-contact .tabs__tab {
  appearance: none;
  margin-bottom: -1px;
  padding: 10px 13px 11px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  font: inherit;
  font-size: 14.5px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .tabs__tab:hover {
  color: var(--ink);
}

.page-contact .tabs__tab[aria-selected="true"] {
  font-weight: 600;
  color: var(--ink);
  border-bottom-color: var(--track);
}

.page-contact .tabs__panel[hidden] {
  display: none;
}

.page-contact .c-panel__lede {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

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

.page-contact .c-list li {
  position: relative;
  margin: 0 0 10px;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .c-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 5px;
  height: 5px;
  background: var(--jade);
}

/* —— 表单字段说明 —— */
.page-contact .c-form-figure {
  margin: 0 0 clamp(20px, 2.8vw, 30px);
}

.page-contact .c-form-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

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

.page-contact .c-field {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .c-field__key {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
}

.page-contact .c-req {
  padding: 1px 5px;
  border: 1px solid var(--track);
  font-style: normal;
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .06em;
  color: var(--track);
}

.page-contact .c-field__desc {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .c-hint {
  margin: 20px 0 0;
  padding: 12px 0 12px 16px;
  border-left: 2px solid var(--jade);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .c-hint a {
  color: var(--jade-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* —— 处理步骤 —— */
.page-contact .c-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink);
}

.page-contact .c-step {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  column-gap: 16px;
  padding: 19px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .c-step::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 1px;
  background: var(--jade);
  transition: width .38s var(--ease);
}

.page-contact .c-step:hover::after {
  width: 100%;
}

.page-contact .c-step__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 2px;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--jade);
}

.page-contact .c-step__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
}

.page-contact .c-step__desc {
  grid-column: 2;
  grid-row: 2;
  margin: 5px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* —— 联系信息 —— */
.page-contact .c-contact {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.page-contact .c-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 92px) minmax(0, 1fr);
  gap: 5px 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .c-contact__k {
  padding-top: 2px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--ink-soft);
}

.page-contact .c-contact__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.page-contact .c-contact__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .c-contact__figure {
  margin: clamp(22px, 3vw, 32px) 0 0;
}

.page-contact .c-contact__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* —— 提交前先看 —— */
.page-contact .c-more {
  margin-top: clamp(44px, 7vw, 92px);
  padding-top: clamp(28px, 4.2vw, 50px);
  border-top: 1px solid var(--ink);
}

.page-contact .c-more__title {
  margin: 0 0 22px;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 600;
  line-height: 1.4;
}

.page-contact .c-more__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .c-more__list li {
  padding: 16px 0;
  border-top: 1px solid var(--rule);
}

.page-contact .c-more__list li:last-child {
  border-bottom: 1px solid var(--rule);
}

.page-contact .c-more__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.page-contact .c-more__link::after {
  content: "\2192";
  color: var(--jade);
  transition: transform .25s var(--ease);
}

.page-contact .c-more__link:hover {
  color: var(--jade-deep);
}

.page-contact .c-more__link:hover::after {
  transform: translateX(4px);
}

.page-contact .c-more__desc {
  display: block;
  margin-top: 6px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* —— 中屏：联系方式横向铺开 —— */
@media (min-width: 640px) {
  .page-contact .c-hero__channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .c-hero__channels li {
    padding: 16px 22px 4px 0;
    border-left: 1px solid var(--rule);
  }

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

/* —— 大屏：左右分屏，左窄右宽 —— */
@media (min-width: 960px) {
  .page-contact .c-board__grid {
    grid-template-columns: minmax(0, 46fr) minmax(0, 54fr);
    gap: clamp(40px, 5.4vw, 92px);
  }

  .page-contact .c-col--form {
    padding-right: clamp(0px, 1.4vw, 22px);
  }

  .page-contact .c-more__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 40px;
  }

  .page-contact .c-more__list li {
    padding: 18px 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}
</main>