/* ============ 反馈通道 / contact ============ */

.page-contact {
  --fb-shell-gap: clamp(48px, 7vw, 84px);
  --fb-card-radius: 16px;
}

/* ---------- 首屏 ---------- */
.page-contact .fb-hero {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.page-contact .fb-hero__media {
  position: absolute;
  inset: 0;
}

.page-contact .fb-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 62%;
  opacity: 0.3;
}

.page-contact .fb-hero__scrim {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(90% 72% at 8% 0%, rgba(63, 240, 216, 0.16), transparent 60%),
    linear-gradient(180deg, rgba(6, 10, 28, 0.58) 0%, rgba(6, 10, 28, 0.92) 58%, var(--bg) 100%);
}

.page-contact .fb-hero__inner {
  position: relative;
  z-index: 2;
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-contact .fb-hero__crumbs {
  margin-bottom: clamp(22px, 4vw, 42px);
}

.page-contact .fb-hero__title {
  margin: 10px 0 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-size: clamp(38px, 8vw, 84px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-contact .fb-hero__lede {
  margin-top: 20px;
  max-width: 58ch;
  color: var(--muted);
}

.page-contact .fb-hero__quick {
  margin-top: clamp(26px, 4vw, 42px);
  display: grid;
  gap: 12px;
  max-width: 640px;
}

.page-contact .fb-quick {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(14, 22, 56, 0.74);
  backdrop-filter: blur(10px);
  transition: border-color 160ms var(--ease), background-color 240ms var(--ease);
}

.page-contact .fb-quick:hover,
.page-contact .fb-quick:focus-within {
  border-color: var(--glass-line);
  background: rgba(17, 26, 64, 0.9);
}

.page-contact .fb-quick__key {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-contact .fb-quick__val {
  flex: 1 1 200px;
  font-size: clamp(15px, 3vw, 20px);
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .fb-quick__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 四类反馈 ---------- */
.page-contact .fb-types__bar {
  margin-top: 26px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-contact .fb-types__bar .filter-btn {
  flex: none;
  white-space: nowrap;
}

.page-contact .fb-type-list {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(238px, 1fr));
  gap: 16px;
}

.page-contact .fb-type {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 26px;
  border: 1px solid var(--line);
  border-radius: var(--fb-card-radius);
  background: var(--bg-panel);
  transition: background-color 240ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .fb-type::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 240ms var(--ease);
}

.page-contact .fb-type:hover,
.page-contact .fb-type:focus-within {
  background: var(--bg-raised);
  border-color: var(--line-strong);
}

.page-contact .fb-type:hover::after,
.page-contact .fb-type:focus-within::after {
  transform: scaleX(1);
}

.page-contact .fb-type__idx {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .fb-type__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 27px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .fb-type__case {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .fb-type__need {
  margin: 6px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .fb-type__need em {
  display: inline-block;
  margin-right: 8px;
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--coral);
}

/* ---------- 提交前准备 ---------- */
.page-contact .fb-kit__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-contact .fb-kit__intro .section__title {
  margin-top: 8px;
}

.page-contact .fb-kit__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 18px 0 0;
}

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

.page-contact .fb-kit__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .fb-kit__key {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .fb-kit__text {
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 处理流程 ---------- */
.page-contact .fb-flow__rail {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 6px 0 34px;
  padding: 0 4px;
}

.page-contact .fb-flow__rail::before {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  top: 50%;
  height: 1px;
  background: var(--line-strong);
  transform: translateY(-50%);
}

.page-contact .fb-flow__node {
  position: relative;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(63, 240, 216, 0.14);
}

.page-contact .fb-flow__node--last {
  background: var(--hot);
  box-shadow: 0 0 0 4px rgba(255, 90, 46, 0.18);
}

.page-contact .fb-flow__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

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

.page-contact .fb-flow__step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 0 14px;
  padding-bottom: 26px;
}

.page-contact .fb-flow__step:last-child {
  padding-bottom: 0;
}

.page-contact .fb-flow__num {
  padding-top: 4px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .fb-flow__step:last-child .fb-flow__num {
  color: var(--coral);
}

.page-contact .fb-flow__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--text);
}

.page-contact .fb-flow__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .fb-shot {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--fb-card-radius);
  background: var(--bg-panel);
}

.page-contact .fb-shot img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-contact .fb-shot figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: linear-gradient(180deg, transparent, rgba(6, 10, 28, 0.94));
}

/* ---------- 客服渠道 ---------- */
.page-contact .fb-reach__grid {
  display: grid;
  gap: 16px;
}

.page-contact .fb-reach__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 24px 22px;
  border-radius: var(--fb-card-radius);
}

.page-contact .fb-reach__card--glass {
  border: 1px solid var(--glass-line);
  background: var(--glass);
  backdrop-filter: blur(14px);
}

.page-contact .fb-reach__card--solid {
  border: 1px solid var(--line);
  background: var(--bg-panel);
}

.page-contact .fb-reach__key {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .fb-reach__val {
  margin: 0;
  font-size: clamp(16px, 2.6vw, 21px);
  line-height: 1.4;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .fb-reach__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .fb-reach__hours {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .fb-reach__hours .mono {
  color: var(--cyan-soft);
}

/* ---------- 内容合作 ---------- */
.page-contact .fb-coop__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .fb-coop__points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .fb-coop__points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .fb-coop__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .fb-coop .accordion__item + .accordion__item {
  margin-top: 10px;
}

.page-contact .fb-coop .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  text-align: left;
}

.page-contact .fb-coop .accordion__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 收尾 ---------- */
.page-contact .fb-next__inner {
  display: grid;
  gap: 22px;
  padding: clamp(26px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--fb-card-radius);
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(255, 90, 46, 0.1), transparent 62%),
    linear-gradient(120deg, rgba(63, 240, 216, 0.09), rgba(14, 22, 56, 0.6) 68%);
}

.page-contact .fb-next__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--text);
}

.page-contact .fb-next__desc {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .fb-next__cta {
  justify-content: flex-start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .fb-kit__row {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    gap: 0 20px;
  }

  .page-contact .fb-flow__step {
    grid-template-columns: 56px minmax(0, 1fr);
  }
}

@media (min-width: 768px) {
  .page-contact .fb-reach__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .fb-reach__card--glass {
    grid-column: span 2;
  }
}

@media (min-width: 900px) {
  .page-contact .fb-kit__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .fb-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-contact .fb-next__cta {
    justify-content: flex-end;
  }
}

@media (min-width: 960px) {
  .page-contact .fb-flow__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .fb-coop__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-contact .fb-reach__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .fb-reach__card--glass {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fb-type,
  .page-contact .fb-type::after,
  .page-contact .fb-quick {
    transition: none;
  }
}