.page-contact {
  --contact-card-bg: linear-gradient(160deg, rgba(13, 43, 63, .92), rgba(6, 24, 38, .96));
  --contact-inner-bg: rgba(6, 24, 38, .74);
  --contact-ring: rgba(35, 224, 196, .35);
  display: block;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  padding: 28px 0 64px;
  background: var(--night);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-contact .contact-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
  opacity: .34;
  filter: saturate(.6) contrast(1.05);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(6, 24, 38, .62) 0%, rgba(6, 24, 38, .84) 58%, var(--night) 100%),
    radial-gradient(120% 90% at 88% 6%, rgba(35, 224, 196, .16), transparent 62%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
}

.page-contact .contact-hero .kicker {
  margin: 22px 0 0;
}

.page-contact .contact-hero h1 {
  margin: 12px 0 0;
  max-width: 22ch;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(1.85rem, 6.4vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text);
}

/* ---------- 区块头 ---------- */
.page-contact .section__head {
  display: grid;
  gap: 14px;
  margin-bottom: 32px;
}

.page-contact .section__title {
  margin: 6px 0 0;
}

.page-contact .section__aside {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 三条通道 ---------- */
.page-contact .contact-channels {
  padding: 8px 0 72px;
  background: var(--night);
}

.page-contact .chan-strip {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .chan-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 26px 24px 28px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--contact-card-bg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-contact .chan-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(35, 224, 196, 0));
}

.page-contact .chan-card__index {
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--steel);
}

.page-contact .chan-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--contact-ring);
  border-radius: var(--r-sm);
  background: rgba(35, 224, 196, .08);
  color: var(--cyan);
}

.page-contact .chan-card__label {
  margin: 4px 0 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--white);
  letter-spacing: -.01em;
}

.page-contact .chan-card__value {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .chan-card__desc {
  margin: 2px 0 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------- 回复时段信息带 ---------- */
.page-contact .reply-band {
  margin-top: 24px;
  display: grid;
  gap: 12px;
  padding: 22px 24px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--glass-deep);
  backdrop-filter: blur(10px);
}

.page-contact .reply-band__clock {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-contact .reply-band__text {
  display: grid;
  gap: 6px;
}

.page-contact .reply-band__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
}

.page-contact .reply-band__body {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 受理范围 ---------- */
.page-contact .contact-scope {
  padding: 72px 0;
  background: var(--night);
}

.page-contact .scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--line-soft);
  overflow: hidden;
}

.page-contact .scope-list li {
  display: grid;
  gap: 7px;
  padding: 22px 22px 24px;
  background: var(--night-2);
}

.page-contact .scope-list__key {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .scope-list__key::before {
  content: "";
  flex: none;
  width: 18px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .scope-list li > p:last-child {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------- 提交要求 ---------- */
.page-contact .contact-submit {
  padding: 76px 0;
  background: linear-gradient(180deg, var(--night) 0%, var(--ink) 100%);
}

.page-contact .submit-grid {
  display: grid;
  gap: 32px;
}

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

.page-contact .step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-contact .step__num {
  padding-top: 3px;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan-dim);
}

.page-contact .step__name {
  margin: 0 0 7px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.04rem;
  color: var(--white);
}

.page-contact .step__note {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--slate);
}

.page-contact .submit-aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-contact .submit-aside .media {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-contact .submit-aside .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-tip {
  padding: 22px 22px 24px;
  border: 1px solid rgba(255, 138, 61, .42);
  border-left: 3px solid var(--orange);
  border-radius: var(--r-md);
  background: linear-gradient(140deg, rgba(255, 138, 61, .16), rgba(255, 138, 61, .02) 72%);
}

.page-contact .contact-tip__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .contact-tip p:last-child {
  margin: 0;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 反馈区 ---------- */
.page-contact .contact-voices {
  padding: 76px 0;
  background: var(--night-2);
}

.page-contact .filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 26px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-contact .filter-btn {
  flex: none;
}

.page-contact .voice-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .voice-item {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 22px 24px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--contact-inner-bg);
}

.page-contact .voice-item__q {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.55;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .voice-item__a {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--slate);
}

.page-contact .voice-item .tag {
  justify-self: start;
}

.page-contact .contact-voices .empty-state {
  margin: 24px 0 0;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 自助入口 ---------- */
.page-contact .contact-more {
  padding: 76px 0 92px;
  background: var(--night);
}

.page-contact .more-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(232px, 1fr));
}

.page-contact .more-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--contact-card-bg);
  text-decoration: none;
  transition: border-color var(--ease), transform var(--ease);
}

.page-contact .more-card__name {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.04rem;
  color: var(--white);
}

.page-contact .more-card__desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.76;
  color: var(--slate);
}

.page-contact .more-card__go {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-hero {
    padding: 40px 0 80px;
  }

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

  .page-contact .reply-band {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: center;
    gap: 28px;
    padding: 24px 28px;
  }

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

  .page-contact .filter-bar {
    flex-wrap: wrap;
    overflow: visible;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 940px) {
  .page-contact .contact-scope,
  .page-contact .contact-submit,
  .page-contact .contact-voices,
  .page-contact .contact-more {
    padding-top: 92px;
    padding-bottom: 92px;
  }

  .page-contact .section__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    align-items: end;
    column-gap: 48px;
  }

  .page-contact .submit-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 56px;
    align-items: start;
  }

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

  .page-contact .voice-item:nth-child(even) {
    transform: translateY(18px);
  }

  .page-contact .contact-more {
    padding-bottom: 108px;
  }
}

@media (min-width: 1180px) {
  .page-contact .chan-card {
    padding: 30px 28px 32px;
  }
}

@media (hover: hover) {
  .page-contact .more-card:hover {
    border-color: var(--cyan-dim);
    transform: translateY(-3px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .more-card {
    transition: none;
  }

  .page-contact .voice-item:nth-child(even) {
    transform: none;
  }
}