.page-contact {
  --pc-cut: 20px;
  --pc-line: rgba(63, 224, 208, 0.24);
  --pc-line-soft: rgba(169, 184, 208, 0.16);
  --pc-card: #121C33;
  --pc-card-deep: rgba(18, 28, 51, 0.78);
  --pc-gap: clamp(20px, 4vw, 48px);
  overflow-x: clip;
  padding-bottom: clamp(56px, 8vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: clamp(20px, 3vw, 32px);
}
.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.88rem;
  color: var(--mist);
}
.page-contact .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: #1B2A4A;
}
.page-contact .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏：对角渐变 + 错位双栏 ---------- */
.fb-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 6vw, 76px) 0 clamp(44px, 7vw, 88px);
}
.fb-hero::before {
  content: "";
  position: absolute;
  left: -12%;
  right: -18%;
  top: -18%;
  height: 132%;
  background:
    linear-gradient(116deg, rgba(63, 224, 208, 0.17) 0%, rgba(63, 224, 208, 0) 46%),
    linear-gradient(294deg, rgba(255, 138, 61, 0.15) 0%, rgba(255, 138, 61, 0) 42%);
  transform: skewY(-8deg);
  transform-origin: left top;
  pointer-events: none;
}
.fb-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}
.fb-hero__title {
  margin: 14px 0 0;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 18ch;
}
.fb-hero__lede {
  margin-top: 20px;
  max-width: 46ch;
  color: var(--mist);
}
.fb-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 4vw, 36px);
}
.fb-hero__aside {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  background: linear-gradient(160deg, rgba(27, 42, 74, 0.85) 0%, rgba(11, 18, 32, 0.9) 100%);
  border: 1px solid var(--pc-line);
  box-shadow: 0 24px 48px -32px rgba(0, 0, 0, 0.8);
}
.fb-hero__aside-label {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}
.fb-mini {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}
.fb-mini__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--pc-line-soft);
  color: var(--paper);
  font-size: 0.98rem;
  line-height: 1.55;
}
.fb-mini__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.fb-mini__num {
  color: var(--amber);
  font-size: 0.85rem;
}
.fb-hero__aside-note {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--pc-line-soft);
  font-size: 0.88rem;
  color: var(--mist);
}

/* ---------- 通用图注 ---------- */
.fb-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
}
.fb-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--pc-line-soft);
  background: var(--ink-700);
}
.fb-figure figcaption {
  margin-top: 12px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 客服通道 ---------- */
.fb-channels .section__head {
  max-width: 62ch;
}
.fb-scale {
  margin: 0 0 clamp(28px, 4vw, 40px);
}
.fb-scale__bar {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: repeating-linear-gradient(90deg, rgba(169, 184, 208, 0.22) 0 1px, transparent 1px 32px), rgba(18, 28, 51, 0.9);
  border: 1px solid var(--pc-line-soft);
  overflow: hidden;
}
.fb-scale__fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan-soft) 46%, var(--amber) 100%);
  opacity: 0.85;
}
.fb-scale__legend {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 12px 0 0;
  font-size: 0.82rem;
  color: var(--mist);
}
.fb-scale__tag {
  color: var(--amber-soft);
  border: 1px dashed rgba(255, 196, 138, 0.5);
  border-radius: 4px;
  padding: 2px 10px;
  font-size: 0.78rem;
}
.fb-channel-grid {
  display: grid;
  gap: 20px;
}
.fb-channel {
  padding: clamp(22px, 3vw, 32px);
  background: var(--pc-card-deep);
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--radius);
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.fb-channel:hover,
.fb-channel:focus-within {
  transform: translateY(-4px);
  border-color: var(--pc-line);
}
.fb-channel__kind {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}
.fb-channel__title {
  margin: 12px 0 0;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--paper);
}
.fb-channel__value {
  margin: 14px 0 0;
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  font-weight: 600;
  color: var(--amber);
  word-break: break-all;
  letter-spacing: 0.01em;
}
.fb-channel__text {
  margin: 16px 0 0;
  color: var(--mist);
  font-size: 0.96rem;
  line-height: 1.75;
}
.fb-channel__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.fb-channel__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--paper);
  line-height: 1.6;
}
.fb-channel__list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.62em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

/* ---------- 准备清单 ---------- */
.fb-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--pc-line-soft);
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.fb-list__item {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  background: rgba(11, 18, 32, 0.94);
  transition: background var(--dur) var(--ease);
}
.fb-list__item:hover {
  background: rgba(27, 42, 74, 0.5);
}
.fb-list__box {
  display: block;
  width: 22px;
  height: 22px;
  border: 2px solid var(--pc-line);
  border-radius: 5px;
  position: relative;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.fb-list__item:hover .fb-list__box {
  border-color: var(--cyan);
  background: rgba(63, 224, 208, 0.12);
}
.fb-list__box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(42deg);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.fb-list__item:hover .fb-list__box::after {
  opacity: 1;
}
.fb-list__title {
  margin: 14px 0 0;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--paper);
}
.fb-list__text {
  margin: 10px 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 三类提交入口 ---------- */
.fb-entry-grid {
  display: grid;
  gap: 20px;
}
.fb-entry {
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 3vw, 34px);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 138, 61, 0.28);
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.fb-entry--c1 {
  background: linear-gradient(168deg, rgba(255, 138, 61, 0.22) 0%, rgba(11, 18, 32, 0.96) 62%);
}
.fb-entry--c2 {
  background: linear-gradient(168deg, rgba(255, 196, 138, 0.16) 0%, rgba(11, 18, 32, 0.96) 62%);
}
.fb-entry--c3 {
  background: linear-gradient(168deg, rgba(63, 224, 208, 0.16) 0%, rgba(11, 18, 32, 0.96) 62%);
  border-color: var(--pc-line);
}
.fb-entry:hover,
.fb-entry:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 28px 48px -36px rgba(255, 138, 61, 0.7);
}
.fb-entry__index {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--amber);
}
.fb-entry--c3 .fb-entry__index {
  color: var(--cyan);
}
.fb-entry__title {
  margin: 12px 0 0;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--paper);
}
.fb-entry__text {
  margin: 14px 0 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--mist);
}
.fb-entry__label {
  margin: 22px 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--paper);
  opacity: 0.72;
}
.fb-entry__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}
.fb-entry__list li {
  position: relative;
  padding-left: 16px;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--paper);
}
.fb-entry__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 6px;
  height: 1px;
  background: var(--amber);
}
.fb-entry__flow {
  margin: auto 0 0;
  padding-top: 20px;
  border-top: 1px dashed var(--pc-line-soft);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 处理流程时间线 ---------- */
.fb-timeline {
  position: relative;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0 0 0 28px;
  list-style: none;
  border-left: 1px solid var(--pc-line);
}
.fb-timeline__item {
  position: relative;
  padding-bottom: clamp(26px, 3vw, 36px);
  max-width: 72ch;
}
.fb-timeline__item:last-child {
  padding-bottom: 0;
}
.fb-dot {
  position: absolute;
  left: -34px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(63, 224, 208, 0.14);
}
.fb-timeline__item--work .fb-dot {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 138, 61, 0.16);
}
.fb-timeline__item--done .fb-dot {
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(78, 216, 165, 0.16);
}
.page-contact .fb-timeline .timeline__time {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}
.fb-timeline__item--work .timeline__time {
  color: var(--amber);
}
.fb-timeline__item--done .timeline__time {
  color: var(--ok);
}
.page-contact .fb-timeline .timeline__title {
  margin: 8px 0 0;
  font-size: 1.14rem;
  font-weight: 700;
  color: var(--paper);
}
.page-contact .fb-timeline .timeline__text {
  margin: 10px 0 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 合作接洽 ---------- */
.fb-partner__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}
.fb-partner__intro .section-title {
  max-width: 24ch;
}
.fb-partner__cards {
  display: grid;
  gap: 1px;
  background: var(--pc-line-soft);
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.fb-partner__card {
  padding: clamp(20px, 3vw, 28px);
  background: rgba(11, 18, 32, 0.94);
  transition: background var(--dur) var(--ease);
}
.fb-partner__card:hover {
  background: rgba(27, 42, 74, 0.5);
}
.fb-partner__title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--paper);
}
.fb-partner__card p {
  margin: 10px 0 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--mist);
}
.fb-partner__contact {
  padding: clamp(20px, 3vw, 28px);
  border-left: 3px solid var(--amber);
  background: rgba(255, 138, 61, 0.07);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.fb-partner__label {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--amber-soft);
}
.fb-partner__text {
  margin: 12px 0 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--paper);
}

/* ---------- 地址与备案 ---------- */
.fb-office__grid {
  display: grid;
  gap: 1px;
  background: var(--pc-line-soft);
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.fb-office__cell {
  padding: clamp(22px, 3vw, 30px);
  background: rgba(6, 10, 20, 0.94);
}
.fb-office__value {
  margin: 14px 0 0;
  font-size: clamp(1rem, 2.2vw, 1.16rem);
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}
.fb-office__value--mono {
  color: var(--cyan);
  letter-spacing: 0.02em;
  word-break: break-all;
}
.fb-office__note {
  margin: 12px 0 0;
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 后续入口 ---------- */
.fb-next .section__head {
  max-width: 56ch;
}
.fb-next__grid {
  display: grid;
  gap: 16px;
}
.fb-next__card {
  display: grid;
  gap: 8px;
  padding: clamp(20px, 3vw, 26px);
  text-decoration: none;
  background: rgba(18, 28, 51, 0.62);
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.fb-next__card:hover,
.fb-next__card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan);
  background: rgba(27, 42, 74, 0.7);
}
.fb-next__name {
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--paper);
}
.fb-next__desc {
  font-size: 0.88rem;
  line-height: 1.68;
  color: var(--mist);
}

/* ---------- 悬浮目录（仅本页补充定位） ---------- */
.page-contact .fb-toc {
  position: fixed;
  right: 20px;
  top: 42%;
  z-index: 5;
  width: 168px;
  padding: 16px 16px 14px;
  background: rgba(6, 10, 20, 0.9);
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
}
.page-contact .fb-toc .toc__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-contact .fb-toc .toc__link {
  display: block;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  padding-left: 10px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-contact .fb-toc .toc__link:hover,
.page-contact .fb-toc .toc__link:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
}
.page-contact .fb-toc .toc__top {
  display: inline-block;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--pc-line-soft);
  width: 100%;
  font-size: 0.8rem;
  color: var(--amber-soft);
  text-decoration: none;
}
.page-contact .fb-toc .toc__top:hover,
.page-contact .fb-toc .toc__top:focus-visible {
  color: var(--amber);
}

/* ---------- 焦点可见性 ---------- */
.page-contact a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1099px) {
  .page-contact .fb-toc {
    display: none;
  }
}

@media (min-width: 640px) {
  .fb-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .fb-partner__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .fb-office__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .fb-office__cell--addr {
    grid-column: 1 / -1;
  }
  .fb-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .fb-channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .fb-entry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .fb-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 1000px) {
  .fb-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .fb-partner__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .fb-partner__contact {
    grid-column: 1 / -1;
  }
  .fb-office__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .fb-office__cell--addr {
    grid-column: auto;
  }
  .fb-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1240px) {
  .fb-hero__title {
    font-size: 3.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fb-channel,
  .page-contact .fb-entry,
  .page-contact .fb-next__card {
    transition: none;
  }
  .page-contact .fb-channel:hover,
  .page-contact .fb-entry:hover,
  .page-contact .fb-next__card:hover {
    transform: none;
  }
}
<<<END>>>