.page-contact {
  --fc-line: 2px solid var(--line);
  --fc-pad: clamp(18px, 3.2vw, 36px);
  --fc-gap: clamp(24px, 4vw, 48px);
  background: var(--ink-900);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-contact #steps {
  scroll-margin-top: 88px;
}

/* ---------- 面包屑 ---------- */
.page-contact .fc-crumb {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(18px, 3vw, 34px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(10, 26, 47, 0.72);
}

.page-contact .fc-crumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(10, 26, 47, 0.35);
}

.page-contact .fc-crumb a:hover,
.page-contact .fc-crumb a:focus-visible {
  border-bottom-color: var(--ink-900);
}

/* ---------- 首屏暖橙色块 ---------- */
.page-contact .fc-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4.5vw, 52px) 0 clamp(40px, 6vw, 80px);
  background: var(--amber);
  color: var(--ink-900);
  border-bottom: 4px solid var(--ink-900);
}

.page-contact .fc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 26, 47, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 26, 47, 0.14) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-contact .fc-hero::after {
  content: "";
  position: absolute;
  top: -90px;
  right: -70px;
  width: min(48vw, 380px);
  aspect-ratio: 1;
  border: 2px solid rgba(10, 26, 47, 0.22);
  transform: rotate(-18deg);
  pointer-events: none;
}

.page-contact .fc-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-contact .fc-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }
}

.page-contact .fc-hero .eyebrow {
  color: var(--ink-900);
}

.page-contact .fc-hero .eyebrow::before {
  background: var(--ink-900);
}

.page-contact .fc-hero h1 {
  margin: 10px 0 18px;
  font-size: clamp(30px, 6.4vw, 54px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

.page-contact .fc-hero__lead {
  margin: 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.78;
  color: #10233a;
}

.page-contact .fc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .fc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 2px solid var(--ink-900);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .fc-btn--solid {
  background: var(--ink-900);
  color: var(--mint);
}

.page-contact .fc-btn--solid:hover,
.page-contact .fc-btn--solid:focus-visible {
  background: var(--panel);
  color: var(--mint-soft);
}

.page-contact .fc-btn--ghost {
  background: transparent;
  color: var(--ink-900);
}

.page-contact .fc-btn--ghost:hover,
.page-contact .fc-btn--ghost:focus-visible {
  background: rgba(10, 26, 47, 0.12);
}

.page-contact .fc-btn:focus-visible {
  outline: 3px solid var(--white);
  outline-offset: 3px;
}

.page-contact .fc-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: rgba(10, 26, 47, 0.82);
}

.page-contact .fc-hero__facts li {
  position: relative;
  padding-left: 13px;
}

.page-contact .fc-hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--ink-900);
}

.page-contact .fc-hero__media .img-frame {
  border: 2px solid var(--ink-900);
  background: var(--ink-900);
  box-shadow: 10px 10px 0 rgba(10, 26, 47, 0.28);
}

/* ---------- 通用图片框（页面内） ---------- */
.page-contact .img-frame {
  display: block;
  position: relative;
  margin: 0;
  overflow: hidden;
  border: var(--fc-line);
  background: var(--ink-850);
}

.page-contact .img-frame--4x3 {
  aspect-ratio: 4 / 3;
}

.page-contact .img-frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .fc-hero__media .img-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 240, 192, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 192, 0.16) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* ---------- 区块骨架 ---------- */
.page-contact .fc-band {
  padding: clamp(44px, 6.5vw, 88px) 0;
}

.page-contact .fc-band--panel {
  background: var(--panel);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .fc-sec-head {
  max-width: 72ch;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-contact .fc-sec-head h2,
.page-contact .fc-contact__head h2,
.page-contact .fc-partner__copy h2 {
  margin: 8px 0 14px;
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .fc-lede {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 三条通道 ---------- */
.page-contact .fc-channels {
  display: grid;
  grid-template-columns: 1fr;
  border: var(--fc-line);
  background: var(--ink-850);
}

@media (min-width: 820px) {
  .page-contact .fc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .fc-channel {
  position: relative;
  padding: var(--fc-pad);
  border-bottom: var(--fc-line);
  transition: background 0.25s var(--ease);
}

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

@media (min-width: 820px) {
  .page-contact .fc-channel {
    border-bottom: 0;
    border-right: var(--fc-line);
  }

  .page-contact .fc-channel:last-child {
    border-right: 0;
  }
}

.page-contact .fc-channel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: var(--mint);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}

.page-contact .fc-channel:hover,
.page-contact .fc-channel:focus-within {
  background: var(--card);
}

.page-contact .fc-channel:hover::before,
.page-contact .fc-channel:focus-within::before {
  transform: scaleX(1);
}

.page-contact .fc-channel__idx {
  display: block;
  margin-bottom: 14px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-contact .fc-channel h3 {
  margin: 0 0 10px;
  font-size: clamp(18px, 2.4vw, 21px);
  font-weight: 800;
  color: var(--white);
}

.page-contact .fc-channel p {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .fc-channel__act {
  display: inline-block;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 240, 192, 0.45);
  overflow-wrap: anywhere;
}

.page-contact .fc-channel__act:hover,
.page-contact .fc-channel__act:focus-visible {
  color: var(--mint-soft);
  border-bottom-color: var(--mint-soft);
}

.page-contact .fc-channel__act--static {
  color: var(--amber-soft);
  border-bottom-color: rgba(255, 196, 107, 0.45);
  cursor: default;
}

/* ---------- 三步走 ---------- */
.page-contact .fc-steps {
  display: grid;
  gap: var(--fc-gap);
  align-items: start;
}

@media (min-width: 920px) {
  .page-contact .fc-steps {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(32px, 4vw, 64px);
  }
}

.page-contact .fc-steps__copy h2 {
  margin: 8px 0 22px;
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--white);
}

.page-contact .fc-steps__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}

.page-contact .fc-steps__list li {
  position: relative;
  padding-left: 20px;
  border-left: 2px solid var(--line);
}

.page-contact .fc-steps__list li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 8px;
  height: 8px;
  background: var(--mint);
}

.page-contact .fc-steps__n {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--mint);
  margin-bottom: 6px;
}

.page-contact .fc-steps__list h3 {
  margin: 0 0 8px;
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 700;
  color: var(--white);
}

.page-contact .fc-steps__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .fc-note {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--amber);
  background: var(--panel);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .fc-steps__media .img-frame {
  box-shadow: 12px 12px 0 rgba(30, 69, 96, 0.4);
}

/* ---------- 五类反馈 ---------- */
.page-contact .fc-cats {
  display: grid;
  gap: 12px;
}

.page-contact .fc-cat {
  border: var(--fc-line);
  background: var(--ink-850);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .fc-cat[open] {
  border-color: var(--mint);
  background: var(--card);
}

.page-contact .fc-cat summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .fc-cat summary:focus-visible {
  outline: 2px solid var(--mint-soft);
  outline-offset: -3px;
}

.page-contact .fc-cat__num {
  flex: none;
  font-size: 12px;
  color: var(--mint);
  letter-spacing: 0.08em;
}

.page-contact .fc-cat__name {
  flex: none;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .fc-cat__hook {
  display: none;
  margin-left: 0;
  font-size: 13px;
  color: var(--deep-muted);
}

@media (min-width: 720px) {
  .page-contact .fc-cat__hook {
    display: block;
    margin-left: 6px;
  }
}

.page-contact .fc-cat summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 10px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--mint);
}

.page-contact .fc-cat[open] summary::after {
  content: "−";
  color: var(--mint-soft);
}

.page-contact .fc-cat__body {
  padding: 0 18px 18px;
}

.page-contact .fc-cat__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--muted);
}

.page-contact .fc-cat__need {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--amber-soft);
}

/* ---------- 准备清单 ---------- */
.page-contact .fc-prep {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

@media (min-width: 760px) {
  .page-contact .fc-prep {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

.page-contact .fc-check {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  height: 100%;
  padding: 16px 18px;
  border: var(--fc-line);
  background: var(--ink-850);
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .fc-check:hover {
  border-color: var(--mint);
}

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

.page-contact .fc-check__box {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 2px solid var(--mint);
  transition: background 0.15s var(--ease);
}

.page-contact .fc-check input:checked + .fc-check__box {
  background: var(--mint);
}

.page-contact .fc-check input:checked + .fc-check__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 0;
  width: 6px;
  height: 12px;
  border-right: 2px solid var(--ink-900);
  border-bottom: 2px solid var(--ink-900);
  transform: rotate(42deg);
}

.page-contact .fc-check input:focus-visible + .fc-check__box {
  outline: 2px solid var(--mint-soft);
  outline-offset: 3px;
}

.page-contact .fc-check__text {
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .fc-check__text strong {
  display: block;
  margin-bottom: 3px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

/* ---------- 工单节奏 ---------- */
.page-contact .fc-flow {
  display: grid;
  gap: var(--fc-gap);
}

@media (min-width: 940px) {
  .page-contact .fc-flow {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
  }
}

.page-contact .fc-track {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 22px;
}

@media (min-width: 640px) {
  .page-contact .fc-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    padding-top: 26px;
  }

  .page-contact .fc-track::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 9px;
    height: 2px;
    background: linear-gradient(90deg, var(--mint), var(--amber));
  }
}

.page-contact .fc-track__node {
  position: relative;
  padding: 0;
}

@media (min-width: 640px) {
  .page-contact .fc-track__node {
    padding: 0 26px 0 0;
  }
}

.page-contact .fc-track__dot {
  display: none;
}

@media (min-width: 640px) {
  .page-contact .fc-track__dot {
    display: block;
    position: absolute;
    top: -26px;
    left: 0;
    width: 20px;
    height: 20px;
    border: 2px solid var(--mint);
    background: var(--panel);
    transform: rotate(45deg);
    box-sizing: border-box;
  }
}

.page-contact .fc-track__time {
  display: block;
  margin-bottom: 8px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--mint);
}

.page-contact .fc-track__node h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .fc-track__node p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .fc-flow__aside {
  padding: var(--fc-pad);
  border: var(--fc-line);
  background: var(--card);
}

.page-contact .fc-flow__aside h3 {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 700;
  color: var(--mint-soft);
}

.page-contact .fc-flow__aside p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .fc-flow__kbd {
  display: block;
  padding: 10px 12px;
  border: 1px dashed var(--line);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mint);
  background: var(--ink-850);
  overflow-wrap: anywhere;
}

.page-contact .fc-flow__aside a.link {
  font-size: 14px;
}

/* ---------- 联系方式 ---------- */
.page-contact .fc-contact {
  display: grid;
  gap: var(--fc-gap);
}

@media (min-width: 900px) {
  .page-contact .fc-contact {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(28px, 4vw, 60px);
    align-items: start;
  }
}

.page-contact .fc-contact__head h2 {
  margin: 8px 0 14px;
}

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

.page-contact .fc-contact__row {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .fc-contact__row:last-child {
  border-bottom: 1px solid var(--line);
}

@media (min-width: 560px) {
  .page-contact .fc-contact__row {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }
}

.page-contact .fc-contact__row dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mint);
  padding-top: 4px;
}

.page-contact .fc-contact__row dd {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .fc-contact__row dd a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--mint);
}

.page-contact .fc-contact__row dd a:hover,
.page-contact .fc-contact__row dd a:focus-visible {
  color: var(--mint-soft);
}

.page-contact .fc-contact__hint {
  display: block;
  margin-top: 5px;
  font-size: 13.5px;
  font-weight: 400;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 合作洽谈 ---------- */
.page-contact .fc-partner {
  display: grid;
  gap: var(--fc-gap);
}

@media (min-width: 940px) {
  .page-contact .fc-partner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }
}

.page-contact .fc-partner__copy h2 {
  margin: 8px 0 16px;
}

.page-contact .fc-partner__copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.84;
  color: var(--muted);
}

.page-contact .fc-partner__mail {
  display: inline-block;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--amber-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 196, 107, 0.5);
  overflow-wrap: anywhere;
}

.page-contact .fc-partner__mail:hover,
.page-contact .fc-partner__mail:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-contact .fc-partner__note {
  padding-left: clamp(16px, 2.4vw, 26px);
  border-left: 2px solid var(--amber);
}

.page-contact .fc-partner__note h3 {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .fc-partner__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .fc-partner__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .fc-partner__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--amber);
}

.page-contact .fc-partner__tail {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fc-channel::before,
  .page-contact .fc-channel,
  .page-contact .fc-cat,
  .page-contact .fc-check,
  .page-contact .fc-btn {
    transition: none;
  }
}
<<<END>>>