.page-contact {
  --fb-line: var(--line);
  --fb-line-strong: var(--line-strong);
  color: var(--mist);
}

.page-contact .container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-contact .breadcrumb {
  padding-top: 18px;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--sage);
}

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

.page-contact .breadcrumb a {
  color: var(--sage);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}

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

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

/* ---------- 首屏 ---------- */
.page-contact .fb-hero {
  position: relative;
  padding: clamp(26px, 6vw, 58px) 0 clamp(30px, 6vw, 58px);
  border-bottom: 1px solid var(--fb-line);
  background:
    radial-gradient(120% 96% at 6% 0%, rgba(53, 242, 208, 0.14), transparent 62%),
    radial-gradient(92% 84% at 100% 8%, rgba(255, 138, 61, 0.1), transparent 60%);
}

.page-contact .fb-hero__inner {
  max-width: 1000px;
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-contact .index-num {
  color: var(--cyan);
  margin-right: 8px;
}

.page-contact h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(29px, 6.6vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--mist);
}

.page-contact .lede {
  margin: 18px 0 0;
  max-width: 42em;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.78;
  color: rgba(234, 244, 239, 0.8);
}

.page-contact .fb-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 4vw, 32px);
}

.page-contact .fb-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 0;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--sage);
}

.page-contact .fb-hero__meta li {
  padding: 0 14px;
  border-left: 1px solid var(--fb-line-strong);
}

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

/* ---------- 章节头 ---------- */
.page-contact .section__head {
  margin-bottom: clamp(18px, 3.4vw, 26px);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--fb-line);
}

.page-contact .section__head h2,
.page-contact .fb-partner__main h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(21px, 4.2vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--mist);
}

/* ---------- 工作台 ---------- */
.page-contact .fb-desk {
  padding-block: clamp(34px, 7vw, 70px);
}

.page-contact .fb-desk__grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

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

.page-contact .fb-type {
  --proj: var(--cyan);
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 12px 16px 14px;
  border-bottom: 1px solid var(--fb-line);
  border-left: 2px solid var(--proj);
  background: rgba(18, 62, 54, 0.28);
  transition: background-color 0.16s var(--ease);
}

.page-contact .fb-type:hover {
  background: rgba(18, 62, 54, 0.62);
}

.page-contact .fb-type--schedule { --proj: var(--cyan); }
.page-contact .fb-type--doc { --proj: var(--orange); }
.page-contact .fb-type--idea { --proj: var(--violet); }
.page-contact .fb-type--coop { --proj: var(--gold); }

.page-contact .fb-type__no {
  padding-top: 2px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--proj);
}

.page-contact .fb-type h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--mist);
}

.page-contact .fb-type p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(234, 244, 239, 0.74);
}

.page-contact .fb-prep {
  margin-top: 26px;
  padding: 18px 18px 20px;
  border: 1px dashed var(--fb-line-strong);
  border-radius: var(--radius);
  background: rgba(18, 62, 54, 0.5);
}

.page-contact .fb-prep__title {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-contact .fb-check {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .fb-check li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.66;
  color: rgba(234, 244, 239, 0.82);
}

.page-contact .fb-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  border-radius: 1px;
}

/* ---------- 反馈单 ---------- */
.page-contact .fb-sheet {
  border: 1px solid var(--fb-line-strong);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 62, 54, 0.92), rgba(14, 50, 44, 0.94));
  scroll-margin-top: calc(var(--header-h) + 18px);
  overflow: hidden;
}

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

.page-contact .fb-sheet__row {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  column-gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px dashed var(--fb-line);
}

.page-contact .fb-sheet__no {
  grid-row: 1 / span 2;
  padding-top: 2px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .fb-sheet__key {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--mist);
}

.page-contact .fb-sheet__hint {
  margin-top: 3px;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--sage);
}

.page-contact .fb-sheet__note {
  margin: 0;
  padding: 16px;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(234, 244, 239, 0.76);
  background: rgba(53, 242, 208, 0.06);
}

.page-contact .fb-sheet__note strong {
  color: var(--cyan);
  font-weight: 500;
  word-break: break-all;
}

.page-contact .fb-sheet__note a,
.page-contact .fb-partner__list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-contact .fb-sheet__note a:hover,
.page-contact .fb-sheet__note a:focus-visible,
.page-contact .fb-partner__list a:hover,
.page-contact .fb-partner__list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 图片 ---------- */
.page-contact .fb-figure,
.page-contact .fb-contact__figure {
  margin: 24px 0 0;
  border: 1px solid var(--fb-line);
  border-radius: var(--radius);
  background: var(--panel-deep);
  overflow: hidden;
}

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

.page-contact .fb-figure figcaption,
.page-contact .fb-contact__figure figcaption {
  padding: 10px 14px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--sage);
  border-top: 1px solid var(--fb-line);
}

/* ---------- 联系方式 ---------- */
.page-contact .fb-contact {
  padding-block: clamp(34px, 7vw, 70px);
  border-top: 1px solid var(--fb-line);
  border-bottom: 1px solid var(--fb-line);
  background: rgba(18, 62, 54, 0.32);
  scroll-margin-top: calc(var(--header-h) + 18px);
}

.page-contact .fb-contact__grid {
  display: grid;
  gap: 1px;
  background: var(--fb-line);
  border: 1px solid var(--fb-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .fb-contact__card {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--ink);
}

.page-contact .fb-contact__card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 242, 208, 0));
}

.page-contact .fb-contact__card:nth-child(2)::before {
  background: linear-gradient(180deg, var(--orange), rgba(255, 138, 61, 0));
}

.page-contact .fb-contact__card:nth-child(3)::before {
  background: linear-gradient(180deg, var(--gold), rgba(242, 210, 122, 0));
}

.page-contact .fb-contact__key {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .fb-contact__val {
  margin: 0;
  font-size: 17px;
  line-height: 1.55;
  color: var(--mist);
  word-break: break-word;
  user-select: all;
}

.page-contact .fb-contact__val.mono {
  font-size: 16.5px;
  letter-spacing: -0.005em;
}

.page-contact .fb-contact__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--sage);
}

/* ---------- 处理路径 ---------- */
.page-contact .fb-flow {
  padding-block: clamp(34px, 7vw, 70px);
}

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

.page-contact .fb-step {
  --proj: var(--cyan);
  position: relative;
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--fb-line);
}

.page-contact .fb-step:nth-child(2) { --proj: var(--orange); }
.page-contact .fb-step:nth-child(3) { --proj: var(--mint); }
.page-contact .fb-step:nth-child(4) { --proj: var(--violet); }

.page-contact .fb-step::before {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  margin-bottom: 14px;
  background: var(--proj);
}

.page-contact .fb-step__no {
  display: block;
  font-size: 24px;
  line-height: 1;
  color: var(--proj);
}

.page-contact .fb-step h3 {
  margin: 10px 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--mist);
}

.page-contact .fb-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(234, 244, 239, 0.74);
}

/* ---------- 合作 ---------- */
.page-contact .fb-partner {
  padding-block: clamp(34px, 7vw, 70px) clamp(44px, 8vw, 84px);
}

.page-contact .fb-partner__inner {
  display: grid;
  gap: clamp(26px, 5vw, 48px);
  align-items: start;
}

.page-contact .fb-partner__main p {
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(234, 244, 239, 0.78);
}

.page-contact .fb-partner__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .fb-partner__side {
  padding: 18px;
  border: 1px solid var(--fb-line-strong);
  border-radius: var(--radius);
  background: rgba(18, 62, 54, 0.5);
}

.page-contact .fb-partner__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sage);
}

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

.page-contact .fb-partner__list li {
  border-top: 1px solid var(--fb-line);
}

.page-contact .fb-partner__list li:first-child {
  border-top: 0;
}

.page-contact .fb-partner__list a {
  display: block;
  padding: 11px 0;
  font-size: 14px;
  line-height: 1.55;
  border-bottom: 0;
  color: rgba(234, 244, 239, 0.86);
}

.page-contact .fb-partner__list a:hover,
.page-contact .fb-partner__list a:focus-visible {
  color: var(--cyan);
  border-bottom: 0;
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .fb-contact__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .fb-contact__card:nth-child(3) {
    grid-column: 1 / -1;
  }
}

@media (min-width: 780px) {
  .page-contact .fb-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-bottom: 1px solid var(--fb-line);
  }

  .page-contact .fb-step {
    padding: 22px 18px 26px;
    border-bottom: 0;
    border-right: 1px solid var(--fb-line);
  }

  .page-contact .fb-step:first-child { padding-left: 0; }
  .page-contact .fb-step:last-child { border-right: 0; padding-right: 0; }
}

@media (min-width: 900px) {
  .page-contact .fb-desk__grid {
    grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  }

  .page-contact .fb-contact__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .fb-contact__card:nth-child(3) {
    grid-column: auto;
  }

  .page-contact .fb-partner__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
  }

  .page-contact .fb-contact__figure img {
    aspect-ratio: 12 / 5;
  }
}

@media (min-width: 1080px) {
  .page-contact .fb-hero {
    padding-top: clamp(40px, 5vw, 70px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fb-type,
  .page-contact .breadcrumb a,
  .page-contact .fb-sheet__note a,
  .page-contact .fb-partner__list a {
    transition: none;
  }
}