.page-contact {
  --fc-rail-w: 288px;
  --fc-panel-pad: clamp(20px, 2.4vw, 32px);
  color: var(--ab-body);
}

/* ---------- 首屏 ---------- */
.page-contact .fc-hero {
  padding-block: clamp(26px, 4vw, 54px) clamp(16px, 2vw, 26px);
}

.page-contact .fc-hero .breadcrumb {
  margin-bottom: clamp(22px, 3vw, 38px);
}

.page-contact .fc-hero__head {
  max-width: 1180px;
}

.page-contact .fc-hero__head .eyebrow {
  display: inline-block;
}

.page-contact .fc-hero__head .display-1 {
  margin: 12px 0 20px;
  max-width: 11em;
  font-family: var(--ab-font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.6vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ab-ink);
}

.page-contact .fc-hero__head .lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 1.35vw, 18px);
  line-height: 1.75;
  color: var(--ab-body);
}

.page-contact .fc-hero::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: clamp(26px, 3.4vw, 50px);
  background: linear-gradient(90deg, var(--ab-cyan), rgba(0, 229, 255, 0) 68%);
  opacity: 0.55;
}

/* ---------- 反馈类型 + 表单 ---------- */
.page-contact .fc-desk {
  position: relative;
  padding-block: clamp(34px, 4.4vw, 72px);
  overflow: hidden;
}

.page-contact .fc-desk::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: clamp(150px, 20vw, 280px);
  background: linear-gradient(158deg, rgba(0, 229, 255, 0.08), rgba(255, 122, 26, 0.05) 55%, rgba(5, 7, 12, 0) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 42%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .fc-desk > .container {
  position: relative;
  z-index: 1;
}

.page-contact .fc-desk .section-title {
  margin: 0;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.2;
  color: var(--ab-ink);
}

.page-contact .fc-desk__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 2.6vw, 40px);
  margin-top: clamp(24px, 3vw, 40px);
}

@media (min-width: 900px) {
  .page-contact .fc-desk__grid {
    grid-template-columns: var(--fc-rail-w) minmax(0, 1fr);
    align-items: start;
  }
}

.page-contact .fc-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

/* 左侧竖排类型选择 */
.page-contact .fc-rail {
  min-width: 0;
}

.page-contact .fc-rail__label {
  margin: 0 0 14px;
  font-family: var(--ab-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ab-muted);
}

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

.page-contact .fc-type {
  position: relative;
  display: block;
  padding: 14px 16px 15px 48px;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: var(--ab-deep);
  cursor: pointer;
  transition: border-color var(--ab-t) ease, background-color var(--ab-t) ease;
}

.page-contact .fc-type:hover {
  border-color: rgba(0, 229, 255, 0.42);
}

.page-contact .fc-type__num {
  position: absolute;
  left: 17px;
  top: 16px;
  font-family: var(--ab-font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ab-muted);
  transition: color var(--ab-t) ease;
}

.page-contact .fc-type__name {
  display: block;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ab-ink);
}

.page-contact .fc-type__hint {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ab-muted);
}

.page-contact #fc-type-1:checked ~ .fc-rail label[for="fc-type-1"],
.page-contact #fc-type-2:checked ~ .fc-rail label[for="fc-type-2"],
.page-contact #fc-type-3:checked ~ .fc-rail label[for="fc-type-3"],
.page-contact #fc-type-4:checked ~ .fc-rail label[for="fc-type-4"] {
  border-color: var(--ab-cyan);
  background: linear-gradient(120deg, rgba(0, 229, 255, 0.14), rgba(0, 229, 255, 0.02));
}

.page-contact #fc-type-1:checked ~ .fc-rail label[for="fc-type-1"] .fc-type__num,
.page-contact #fc-type-2:checked ~ .fc-rail label[for="fc-type-2"] .fc-type__num,
.page-contact #fc-type-3:checked ~ .fc-rail label[for="fc-type-3"] .fc-type__num,
.page-contact #fc-type-4:checked ~ .fc-rail label[for="fc-type-4"] .fc-type__num {
  color: var(--ab-cyan);
}

/* 右侧表单面板 */
.page-contact .fc-panel {
  position: relative;
  min-width: 0;
  padding: var(--fc-panel-pad);
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: var(--ab-raise);
  overflow: hidden;
}

.page-contact .fc-panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle at 100% 0, rgba(0, 229, 255, 0.16), rgba(0, 229, 255, 0) 70%);
  pointer-events: none;
}

.page-contact .fc-hint {
  display: none;
  margin: 0 0 26px;
  padding: 15px 18px;
  border-left: 2px solid var(--ab-cyan);
  border-radius: 0 var(--ab-radius) var(--ab-radius) 0;
  background: rgba(0, 229, 255, 0.06);
}

.page-contact #fc-type-1:checked ~ .fc-panel .fc-hint--1,
.page-contact #fc-type-2:checked ~ .fc-panel .fc-hint--2,
.page-contact #fc-type-3:checked ~ .fc-panel .fc-hint--3,
.page-contact #fc-type-4:checked ~ .fc-panel .fc-hint--4 {
  display: block;
}

.page-contact .fc-hint__title {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ab-ink);
}

.page-contact .fc-hint__list {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ab-body);
}

.page-contact .fc-fields {
  position: relative;
  display: grid;
  gap: 18px;
}

.page-contact .fc-field__label {
  display: block;
  margin-bottom: 7px;
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--ab-muted);
}

.page-contact .fc-input,
.page-contact .fc-textarea {
  box-sizing: border-box;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--ab-line);
  border-radius: 10px;
  background: var(--ab-void);
  color: var(--ab-ink);
  font-family: var(--ab-font-body);
  font-size: 16px;
  line-height: 1.6;
  transition: border-color var(--ab-t) ease, box-shadow var(--ab-t) ease;
}

.page-contact .fc-input::placeholder,
.page-contact .fc-textarea::placeholder {
  color: #5C6E85;
}

.page-contact .fc-input:focus,
.page-contact .fc-textarea:focus {
  outline: none;
  border-color: var(--ab-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.16);
}

.page-contact .fc-textarea {
  min-height: 138px;
  resize: vertical;
}

.page-contact .fc-field__note {
  margin: 7px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ab-muted);
}

.page-contact .fc-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--ab-line);
}

.page-contact .fc-desk__media {
  margin: 0;
}

@media (min-width: 900px) {
  .page-contact .fc-desk__media {
    grid-column: 2;
  }
}

/* ---------- 资料下载区位置 ---------- */
.page-contact .fc-move {
  position: relative;
  padding-block: clamp(38px, 4.6vw, 76px);
}

.page-contact .fc-move::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.86), rgba(11, 18, 32, 0.18));
  clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .fc-move > .container {
  position: relative;
  z-index: 1;
}

.page-contact .fc-move .section-title {
  margin: 12px 0 16px;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.22;
  color: var(--ab-ink);
}

.page-contact .fc-move__list {
  list-style: none;
  margin: 22px 0 26px;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .fc-move__list li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ab-body);
}

.page-contact .fc-move__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--ab-cyan);
  transform: rotate(45deg);
}

.page-contact .fc-move__list .mono {
  font-family: var(--ab-font-mono);
  color: var(--ab-orange);
  font-weight: 700;
}

.page-contact .fc-move__media {
  margin: 0;
}

/* ---------- 纠错与补录 ---------- */
.page-contact .fc-fix {
  padding-block: clamp(38px, 4.6vw, 76px);
}

.page-contact .fc-fix .section-title {
  margin: 12px 0 14px;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.22;
  color: var(--ab-ink);
}

.page-contact .fc-fix .section-head .lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.75;
}

.page-contact .fc-spec {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .fc-spec li {
  padding: 6px 14px;
  border: 1px solid rgba(0, 229, 255, 0.32);
  border-radius: 999px;
  font-family: var(--ab-font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--ab-cyan);
}

.page-contact .fc-fix__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(24px, 3vw, 38px);
}

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

.page-contact .fc-fix__card {
  position: relative;
  padding: 24px 26px 26px;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: var(--ab-raise);
  overflow: hidden;
}

.page-contact .fc-fix__card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(255, 122, 26, 0) 50%, rgba(255, 122, 26, 0.26) 50%);
  border-radius: 0 var(--ab-radius) 0 0;
  pointer-events: none;
}

.page-contact .fc-fix__card .heading-3 {
  margin: 0 0 12px;
  font-size: 19px;
  color: var(--ab-ink);
}

.page-contact .fc-fix__card p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ab-body);
}

.page-contact .fc-fix__card p:last-child {
  margin-bottom: 0;
}

.page-contact .fc-fix__card .text-muted {
  font-size: 13.5px;
  line-height: 1.7;
}

.page-contact .fc-fix__foot {
  margin: 26px 0 0;
  max-width: 68ch;
  padding-top: 20px;
  border-top: 1px solid var(--ab-line);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ab-muted);
}

/* ---------- 联络方式 ---------- */
.page-contact .fc-link {
  padding-block: clamp(38px, 4.6vw, 76px);
}

.page-contact .fc-link .section-title {
  margin: 12px 0 14px;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.22;
  color: var(--ab-ink);
}

.page-contact .fc-link .lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.75;
}

.page-contact .fc-link__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 26px;
}

@media (min-width: 620px) {
  .page-contact .fc-link__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .fc-link__card {
  padding: 18px 20px 20px;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: var(--ab-void);
}

.page-contact .fc-link__role {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ab-muted);
}

.page-contact .fc-link__addr {
  margin: 0 0 10px;
  font-family: var(--ab-font-mono);
  font-size: clamp(14px, 1.25vw, 16px);
  line-height: 1.45;
  color: var(--ab-cyan);
  word-break: break-all;
}

.page-contact .fc-link__use {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ab-body);
}

.page-contact .fc-link__side {
  padding: 22px 24px 24px;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: var(--ab-deep);
}

.page-contact .fc-contact-line {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  margin: 0;
  padding: 13px 0;
  border-bottom: 1px dashed rgba(31, 58, 95, 0.9);
}

.page-contact .fc-contact-line:last-of-type {
  border-bottom: 0;
}

.page-contact .fc-contact-line dt {
  margin: 0;
  font-size: 13px;
  color: var(--ab-muted);
}

.page-contact .fc-contact-line dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ab-ink);
}

.page-contact .fc-contact-line dd.mono {
  font-family: var(--ab-font-mono);
  font-size: clamp(16px, 1.5vw, 19px);
  letter-spacing: 0.03em;
  color: var(--ab-cyan);
}

.page-contact .fc-link__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ab-muted);
}

/* ---------- 回复节奏 ---------- */
.page-contact .fc-sla {
  padding-block: clamp(38px, 4.6vw, 76px) clamp(52px, 6vw, 96px);
}

.page-contact .fc-sla .section-title {
  margin: 12px 0 0;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.22;
  color: var(--ab-ink);
}

.page-contact .fc-sla__list {
  list-style: none;
  margin: clamp(26px, 3.2vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 860px) {
  .page-contact .fc-sla__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .fc-sla__item {
  position: relative;
  padding: 24px 22px 26px;
  border-top: 2px solid var(--ab-line);
}

.page-contact .fc-sla__item:first-child {
  border-top-color: var(--ab-cyan);
}

.page-contact .fc-sla__item:nth-child(2) {
  border-top-color: var(--ab-orange);
}

.page-contact .fc-sla__item:nth-child(3) {
  border-top-color: var(--ab-green);
}

@media (min-width: 860px) {
  .page-contact .fc-sla__item + .fc-sla__item {
    border-left: 1px solid var(--ab-line);
  }
}

.page-contact .fc-sla__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--ab-font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ab-muted);
}

.page-contact .fc-sla__item .heading-3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: var(--ab-ink);
}

.page-contact .fc-sla__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ab-body);
}

.page-contact .fc-sla__foot {
  margin: 28px 0 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ab-muted);
}

/* ---------- 图片与窄屏收口 ---------- */
.page-contact .media-frame {
  overflow: hidden;
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--ab-radius);
}

.page-contact .media-frame__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ab-muted);
}

.page-contact .link-inline {
  text-decoration: none;
}

@media (max-width: 620px) {
  .page-contact .fc-panel {
    padding: 18px 16px 22px;
  }

  .page-contact .fc-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-contact .fc-actions .link-inline {
    text-align: center;
  }

  .page-contact .fc-fix__card {
    padding: 20px 18px 22px;
  }

  .page-contact .fc-link__side {
    padding: 18px 16px 20px;
  }

  .page-contact .fc-contact-line {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fc-type,
  .page-contact .fc-input,
  .page-contact .fc-textarea {
    transition: none;
  }
}