.page-contact {
  --contact-shift: 14px;
  --contact-rule: rgba(47, 243, 214, 0.22);
}

/* ---------- 01 hero ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(64px, 9vw, 112px);
}

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

.page-contact .contact-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(110% 80% at 82% 6%, rgba(47, 243, 214, 0.2), transparent 62%),
    linear-gradient(180deg, rgba(4, 18, 31, 0.4) 0%, rgba(4, 18, 31, 0.92) 68%, var(--deep) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 20ch;
  margin: 20px 0 0;
}

.page-contact .contact-hero__lead {
  max-width: 60ch;
  margin-top: 22px;
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.08rem);
  line-height: 1.85;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

/* ---------- 02 联系卡 ---------- */
.page-contact .channels-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(32px, 4vw, 48px);
}

.page-contact .channels-cards {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--rule);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: transform 260ms var(--ease), border-color 260ms var(--ease), background 260ms var(--ease);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--cyan), transparent);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  border-color: var(--contact-rule);
  background: var(--glass-strong);
}

.page-contact .contact-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--contact-rule);
  background: rgba(47, 243, 214, 0.08);
  color: var(--cyan);
}

.page-contact .contact-card__icon svg {
  width: 20px;
  height: 20px;
}

.page-contact .contact-card__title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .contact-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.8vw, 1.14rem);
  line-height: 1.55;
  color: var(--cyan);
  letter-spacing: 0.01em;
  user-select: all;
  overflow-wrap: anywhere;
}

.page-contact .contact-card--b .contact-card__value,
.page-contact .contact-card--c .contact-card__value {
  color: var(--amber);
}

.page-contact .contact-card--b {
  border-color: rgba(255, 178, 122, 0.22);
}

.page-contact .contact-card--b::before {
  background: linear-gradient(180deg, var(--orange), transparent);
}

.page-contact .contact-card--c::before {
  background: linear-gradient(180deg, var(--cyan-soft), transparent);
}

.page-contact .contact-card__note {
  margin: 14px 0 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-contact .channels-aside {
  padding: clamp(24px, 3vw, 34px);
  border-radius: var(--radius);
  border: 1px solid var(--contact-rule);
}

.page-contact .channels-aside__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-contact .channels-aside__title {
  margin: 12px 0 22px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  color: var(--ink);
}

.page-contact .channels-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-contact .channels-aside__item {
  display: grid;
  grid-template-columns: 10px 1fr;
  column-gap: 12px;
  row-gap: 4px;
  padding: 15px 0;
  border-top: 1px solid var(--rule);
}

.page-contact .channels-aside__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .channels-aside__dot {
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 50%;
}

.page-contact .channels-aside__dot--cyan {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(47, 243, 214, 0.14);
}

.page-contact .channels-aside__dot--amber {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 47, 0.16);
}

.page-contact .channels-aside__item a {
  grid-column: 2;
  color: var(--ink);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-contact .channels-aside__item a:hover,
.page-contact .channels-aside__item a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .channels-aside__hint {
  grid-column: 2;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.page-contact .channels-aside__foot {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.8;
}

/* ---------- 03 纠错流程 ---------- */
.page-contact .correction-shot {
  margin: 0 0 clamp(32px, 4vw, 48px);
}

.page-contact .fix-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  counter-reset: fix;
}

.page-contact .fix-step {
  position: relative;
  padding: 26px 24px 24px;
  border-radius: var(--radius);
  background: rgba(4, 18, 31, 0.55);
  border: 1px solid var(--rule);
}

.page-contact .fix-step--accent {
  border-color: rgba(255, 122, 47, 0.34);
  background: linear-gradient(160deg, rgba(255, 122, 47, 0.1), rgba(4, 18, 31, 0.6));
}

.page-contact .fix-step__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2.1rem;
  line-height: 1;
  color: var(--cyan);
  opacity: 0.85;
}

.page-contact .fix-step--accent .fix-step__num {
  color: var(--orange);
}

.page-contact .fix-step__title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
}

.page-contact .fix-step__text {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-contact .correction-foot {
  margin: clamp(26px, 3vw, 36px) 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--contact-rule);
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 68ch;
}

/* ---------- 04 合作与投稿 ---------- */
.page-contact .collab-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(28px, 3vw, 40px);
}

.page-contact .collab-card {
  padding: clamp(24px, 3vw, 32px);
  border-radius: var(--radius);
  border: 1px solid var(--rule);
  background: var(--glass);
  display: flex;
  flex-direction: column;
}

.page-contact .collab-card--warm {
  border-color: rgba(255, 178, 122, 0.26);
}

.page-contact .collab-card__tag {
  display: inline-block;
  align-self: flex-start;
  margin: 0;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(46, 42, 107, 0.75);
  color: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
}

.page-contact .collab-card--warm .collab-card__tag {
  background: rgba(110, 31, 60, 0.7);
  color: var(--amber);
}

.page-contact .collab-card__title {
  margin: 16px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
}

.page-contact .collab-card__text {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-contact .collab-card__meta {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  color: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 0.83rem;
  line-height: 1.75;
}

.page-contact .collab-card--warm .collab-card__meta {
  color: var(--amber);
}

/* ---------- 05 兼容反馈 + 06 回复时间 ---------- */
.page-contact .feedback-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}

.page-contact .feedback-text {
  margin: clamp(18px, 2vw, 24px) 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
}

.page-contact .feedback-list {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-contact .feedback-list__item {
  position: relative;
  padding: 14px 16px 14px 40px;
  background: rgba(4, 18, 31, 0.5);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-contact .feedback-list__item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 21px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-contact .feedback-aside {
  padding: clamp(24px, 3vw, 34px);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(46, 42, 107, 0.55), rgba(10, 42, 69, 0.7));
  border: 1px solid var(--contact-rule);
}

.page-contact .feedback-aside__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-contact .feedback-aside__big {
  margin: 14px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .feedback-aside__text {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-contact .feedback-aside__badge {
  margin-top: 20px;
}

/* ---------- 07 常见咨询 ---------- */
.page-contact .faq-list {
  list-style: none;
  margin: clamp(28px, 3vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .faq-item {
  border-radius: var(--radius);
  border: 1px solid var(--rule);
  background: var(--glass);
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-contact .faq-item:hover,
.page-contact .faq-item:focus-within {
  border-color: var(--contact-rule);
  transform: translateY(-2px);
}

.page-contact .faq-item__link {
  display: block;
  padding: 20px 22px;
  text-decoration: none;
}

.page-contact .faq-item__q {
  display: block;
  color: var(--ink);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.6;
}

.page-contact .faq-item__a {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

/* ---------- 08 下一步 ---------- */
.page-contact .contact-next {
  margin-top: clamp(48px, 6vw, 76px);
  padding-top: clamp(32px, 4vw, 48px);
  border-top: 1px solid var(--contact-rule);
}

.page-contact .contact-next__title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-next__text {
  margin: 18px 0 0;
  max-width: 64ch;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
}

.page-contact .contact-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-contact .contact-index {
  margin-top: clamp(36px, 4vw, 52px);
}

.page-contact .contact-index .index-list__num {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .fix-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .fix-step::after {
    content: "";
    position: absolute;
    right: -18px;
    top: 46px;
    width: 18px;
    height: 1px;
    background: var(--contact-rule);
  }

  .page-contact .fix-step:last-child::after {
    display: none;
  }

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

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

  .page-contact .contact-card--b {
    transform: translateX(var(--contact-shift));
  }

  .page-contact .contact-card--c {
    transform: translateX(calc(var(--contact-shift) * -0.6));
  }
}

@media (min-width: 960px) {
  .page-contact .channels-layout {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }

  .page-contact .feedback-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-contact .channels-aside {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .faq-item,
  .page-contact .channels-aside__item a {
    transition: none;
  }

  .page-contact .faq-item:hover,
  .page-contact .faq-item:focus-within {
    transform: none;
  }
}
<<<END>>>