.page-contact {
  --fc-cut: 26px;
  --fc-soft: rgba(244, 246, 250, 0.68);
  background: var(--paper);
  color: var(--blue-900);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .fc-hero {
  position: relative;
  margin-top: calc(var(--header-h) * -1);
  padding: calc(var(--header-h) + 40px) 0 68px;
  background:
    radial-gradient(110% 80% at 6% 4%, rgba(255, 143, 92, 0.3), transparent 58%),
    linear-gradient(165deg, var(--blue-900) 0%, var(--blue-700) 56%, var(--blue-500) 100%);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .fc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--orange), var(--orange-300) 45%, var(--acid));
}

.page-contact .fc-hero__grid {
  display: grid;
  gap: var(--sp-4);
}

.page-contact .fc-hero__crumb {
  margin-bottom: var(--sp-3);
}

.page-contact .fc-hero__crumb .breadcrumb__link,
.page-contact .fc-hero__crumb .breadcrumb__sep {
  color: rgba(244, 246, 250, 0.6);
}

.page-contact .fc-hero__crumb .breadcrumb__current {
  color: var(--acid);
}

.page-contact .fc-hero__eyebrow {
  color: var(--orange-300);
  margin-bottom: var(--sp-2);
}

.page-contact .fc-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 7.2vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 0 0 var(--sp-3);
}

.page-contact .fc-hero__lead {
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 246, 250, 0.9);
  margin: 0 0 var(--sp-2);
}

.page-contact .fc-hero__lead--soft {
  color: var(--fc-soft);
  font-size: 15px;
}

.page-contact .fc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}

.page-contact .fc-hero__side {
  border: 1px solid rgba(244, 246, 250, 0.18);
  background: rgba(8, 21, 43, 0.42);
  padding: 22px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), 0 100%);
}

.page-contact .fc-side__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--acid);
  margin: 0 0 var(--sp-2);
}

.page-contact .fc-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .fc-side__item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 2px 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(244, 246, 250, 0.14);
}

.page-contact .fc-side__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .fc-side__no {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange-300);
  padding-top: 2px;
}

.page-contact .fc-side__name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-contact .fc-side__desc {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--fc-soft);
  word-break: break-all;
}

/* ---------- 章节通用 ---------- */
.page-contact .fc-section {
  padding: clamp(48px, 8vw, 96px) 0;
}

.page-contact .fc-sec-head {
  display: grid;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}

.page-contact .chapter-no {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(40px, 8vw, 80px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--orange);
}

.page-contact .fc-sec-head__body h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 0 0 var(--sp-2);
}

.page-contact .fc-sec-head__body p {
  max-width: 60ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 三条通道 ---------- */
.page-contact .fc-channels {
  display: grid;
  gap: var(--sp-3);
}

.page-contact .fc-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: 30px 24px 52px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 4px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--fc-cut)), 0 100%);
  transition: transform 320ms var(--ease), background-color 320ms var(--ease);
}

.page-contact .fc-channel--mail {
  border-top-color: var(--acid);
  background: var(--mist);
}

.page-contact .fc-channel--form {
  border-top-color: var(--blue-500);
}

.page-contact .fc-channel:hover {
  transform: translateY(-4px);
}

.page-contact .fc-channel__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
}

.page-contact .fc-channel__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-contact .fc-channel__use {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--blue-700);
}

.page-contact .fc-channel__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--ink-soft);
  word-break: break-all;
}

.page-contact .fc-details {
  margin-top: auto;
  padding-top: var(--sp-2);
  border-top: 1px dashed var(--line);
}

.page-contact .fc-details summary {
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 700;
  color: var(--blue-900);
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-contact .fc-details summary::-webkit-details-marker {
  display: none;
}

.page-contact .fc-details summary::before {
  content: "+";
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 16px;
  line-height: 1;
}

.page-contact .fc-details[open] summary::before {
  content: "−";
}

.page-contact .fc-details__list {
  list-style: none;
  margin: var(--sp-1) 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .fc-details__list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .fc-details__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  background: var(--orange-300);
}

/* ---------- 时效 ---------- */
.page-contact .fc-timing-sec {
  background:
    linear-gradient(180deg, rgba(255, 226, 211, 0.5), rgba(244, 246, 250, 0)) ,
    var(--paper);
}

.page-contact .fc-timing {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .fc-timing__item {
  display: grid;
  gap: var(--sp-1);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .fc-timing__item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .fc-timing__tag {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue-900);
  background: var(--mist);
  border-left: 3px solid var(--orange);
  padding: 6px 12px;
}

.page-contact .fc-timing__body h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .fc-timing__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* ---------- 表单写法 ---------- */
.page-contact .fc-form-sec {
  background: var(--paper);
}

.page-contact .fc-form__grid {
  display: grid;
  gap: var(--sp-4);
}

.page-contact .fc-form__intro h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: var(--sp-2) 0 var(--sp-2);
}

.page-contact .fc-form__intro p {
  margin: 0 0 var(--sp-2);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 44ch;
}

.page-contact .fc-form__note {
  font-size: 13px !important;
  color: var(--ink-soft);
}

.page-contact .fc-req {
  color: var(--orange);
  font-weight: 700;
}

.page-contact .fc-form__fields {
  display: grid;
  gap: var(--sp-2);
}

.page-contact .fc-field {
  position: relative;
  padding: 18px 18px 18px 50px;
  background: var(--mist);
  border-left: 2px solid var(--orange);
}

.page-contact .fc-field__no {
  position: absolute;
  left: 16px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-500);
}

.page-contact .fc-field__name {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
}

.page-contact .fc-field__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--blue-700);
}

.page-contact .fc-types {
  grid-column: 1 / -1;
  border-top: 2px solid var(--blue-900);
  padding-top: var(--sp-3);
}

.page-contact .fc-types__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  margin: 0 0 var(--sp-2);
}

.page-contact .fc-types__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .fc-types__item {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .fc-types__name {
  font-size: 15px;
  font-weight: 700;
}

.page-contact .fc-types__need {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 合作 ---------- */
.page-contact .fc-partner-sec {
  background: linear-gradient(180deg, var(--paper), rgba(220, 227, 238, 0.55));
}

.page-contact .fc-partners {
  display: grid;
  gap: var(--sp-3);
}

.page-contact .fc-partner {
  position: relative;
  padding: 26px 22px 30px;
  background: var(--paper);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 18px));
  transition: transform 320ms var(--ease);
}

.page-contact .fc-partner:hover {
  transform: translateY(-3px);
}

.page-contact .fc-partner__no {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 90, 31, 0.35);
  display: block;
  margin-bottom: 10px;
}

.page-contact .fc-partner h3 {
  margin: 0 0 var(--sp-1);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .fc-partner p {
  margin: 0 0 var(--sp-1);
  font-size: 14px;
  line-height: 1.8;
  color: var(--blue-700);
}

.page-contact .fc-partner__need {
  font-family: var(--font-mono);
  font-size: 12px !important;
  line-height: 1.7 !important;
  color: var(--ink-soft) !important;
}

.page-contact .fc-partner__foot {
  margin: var(--sp-3) 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--acid);
  font-size: 14px;
  line-height: 1.85;
  color: var(--blue-700);
}

/* ---------- 到访（深色） ---------- */
.page-contact .fc-visit {
  position: relative;
  background:
    radial-gradient(90% 70% at 92% 8%, rgba(255, 143, 92, 0.22), transparent 62%),
    linear-gradient(150deg, var(--blue-900), var(--blue-700));
  color: var(--paper);
  padding: clamp(52px, 8vw, 96px) 0;
}

.page-contact .fc-visit__grid {
  display: grid;
  gap: var(--sp-4);
}

.page-contact .fc-visit__no {
  color: var(--acid);
  opacity: 0.9;
}

.page-contact .fc-visit__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: var(--sp-2) 0 var(--sp-2);
}

.page-contact .fc-visit__lead {
  margin: 0 0 var(--sp-3);
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 246, 250, 0.82);
}

.page-contact .fc-visit__dl {
  margin: 0 0 var(--sp-3);
  display: grid;
  gap: 0;
}

.page-contact .fc-visit__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid rgba(244, 246, 250, 0.16);
}

.page-contact .fc-visit__row:last-child {
  border-bottom: 1px solid rgba(244, 246, 250, 0.16);
}

.page-contact .fc-visit__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--acid);
}

.page-contact .fc-visit__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .fc-visit__tips {
  border-left: 3px solid var(--orange);
  padding-left: 16px;
}

.page-contact .fc-visit__tips h3 {
  margin: 0 0 var(--sp-1);
  font-size: 15px;
  font-weight: 700;
  color: var(--orange-300);
}

.page-contact .fc-visit__tips ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.page-contact .fc-visit__tips li {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 246, 250, 0.82);
}

.page-contact .fc-visit__fig {
  margin: 0;
  position: relative;
  border: 1px solid rgba(244, 246, 250, 0.22);
  padding: 10px;
  background: rgba(8, 21, 43, 0.35);
}

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

.page-contact .fc-visit__fig figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(244, 246, 250, 0.62);
}

/* ---------- 自助通道 ---------- */
.page-contact .fc-selfhelp {
  background: var(--paper);
}

.page-contact .fc-selfhelp__grid {
  display: grid;
  gap: var(--sp-3);
}

.page-contact .fc-selfhelp__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: var(--sp-2) 0 var(--sp-2);
}

.page-contact .fc-selfhelp__head p {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .fc-selfhelp__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--blue-900);
}

.page-contact .fc-selfhelp__link {
  display: grid;
  grid-template-columns: 1fr 24px;
  align-items: center;
  gap: 4px 12px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--blue-900);
  transition: background-color 240ms var(--ease), padding-left 240ms var(--ease);
}

.page-contact .fc-selfhelp__link:hover {
  background: var(--mist);
  padding-left: 14px;
}

.page-contact .fc-selfhelp__name {
  font-size: 16px;
  font-weight: 700;
}

.page-contact .fc-selfhelp__desc {
  grid-column: 1 / 2;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .fc-selfhelp__arrow {
  grid-column: 2 / 3;
  grid-row: 1 / 3;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--orange);
}

/* ---------- 页尾分隔与横幅 ---------- */
.page-contact .fc-divider {
  height: 16px;
  background: linear-gradient(90deg, var(--orange), var(--orange-300));
  clip-path: polygon(0 0, 100% 0, 100% 42%, 0 100%);
}

.page-contact .fc-banner {
  position: relative;
  background: var(--blue-900);
  overflow: hidden;
}

.page-contact .fc-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
  opacity: 0.92;
}

.page-contact .fc-banner__tag {
  position: absolute;
  left: var(--gutter);
  bottom: 20px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--acid);
  background: rgba(8, 21, 43, 0.72);
  padding: 8px 14px;
  border-left: 3px solid var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .fc-hero {
    padding-bottom: 88px;
  }

  .page-contact .fc-form__fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .fc-types__item {
    grid-template-columns: 180px 1fr;
    align-items: baseline;
    gap: var(--sp-2);
  }

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

  .page-contact .fc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .fc-channel:nth-child(2) {
    margin-top: 36px;
  }

  .page-contact .fc-channel:nth-child(3) {
    margin-top: 14px;
  }
}

@media (min-width: 960px) {
  .page-contact .fc-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.78fr);
    gap: var(--sp-5);
    align-items: start;
  }

  .page-contact .fc-hero__side {
    margin-top: 108px;
  }

  .page-contact .fc-sec-head {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: var(--sp-3);
    align-items: start;
  }

  .page-contact .fc-sec-head .chapter-no {
    padding-top: 6px;
  }

  .page-contact .fc-timing__item {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: var(--sp-3);
    align-items: start;
    padding: var(--sp-3) 0;
  }

  .page-contact .fc-form__grid {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: var(--sp-5);
    align-items: start;
  }

  .page-contact .fc-form__intro {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-contact .fc-visit__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    gap: var(--sp-5);
    align-items: start;
  }

  .page-contact .fc-selfhelp__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: var(--sp-5);
    align-items: start;
  }

  .page-contact .fc-selfhelp__head {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fc-channel,
  .page-contact .fc-partner,
  .page-contact .fc-selfhelp__link {
    transition: none;
  }

  .page-contact .fc-channel:hover,
  .page-contact .fc-partner:hover {
    transform: none;
  }
}