.page-contact {
  --ct-gap: clamp(18px, 3vw, 32px);
  --ct-pad: clamp(44px, 7vw, 92px);
  position: relative;
  overflow-x: clip;
  background: var(--ink);
  color: var(--snow);
  padding-bottom: clamp(56px, 8vw, 108px);
}

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

/* ---------- 面包屑 ---------- */
.page-contact .ct-crumbs {
  padding-block: clamp(16px, 3vw, 28px) 0;
}

.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-contact .crumbs a {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.page-contact .crumbs span[aria-hidden="true"] {
  color: var(--clay);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding-block: clamp(28px, 5vw, 54px) clamp(38px, 6vw, 76px);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  top: -25%;
  right: -35%;
  width: 100%;
  height: 150%;
  background: linear-gradient(205deg, var(--deep) 0%, rgba(14, 42, 32, 0.4) 58%, rgba(7, 18, 14, 0) 100%);
  clip-path: polygon(48% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--alert) 0%, rgba(255, 106, 61, 0.15) 34%, transparent 62%);
  pointer-events: none;
}

.page-contact .ct-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6.6vw, 4.05rem);
  line-height: 1.03;
  letter-spacing: 0.01em;
  color: var(--snow);
}

.page-contact .ct-hero h1 em {
  font-style: normal;
  color: var(--mint);
}

.page-contact .ct-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(1rem, 0.96rem + 0.25vw, 1.0625rem);
  line-height: 1.75;
  color: rgba(242, 247, 244, 0.82);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

/* 响应速览卡 */
.page-contact .ct-hero__side {
  align-self: stretch;
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--glass);
  border: 1px solid var(--ghost-line);
  border-left: 2px solid var(--alert);
  backdrop-filter: blur(6px);
}

.page-contact .ct-hero__side .eyebrow {
  margin: 0;
  color: var(--mint);
}

.page-contact .ct-facts {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
}

.page-contact .ct-facts li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 14px;
  padding-block: 12px;
  border-top: 1px dashed var(--ghost-line);
}

.page-contact .ct-facts li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .ct-facts__k {
  align-self: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-contact .ct-facts__v {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  line-height: 1.4;
  text-align: right;
  color: var(--snow);
  word-break: break-word;
}

.page-contact .ct-facts__v--mint {
  color: var(--mint);
}

.page-contact .ct-facts__v--alert {
  color: var(--alert);
}

.page-contact .ct-facts__n {
  grid-column: 1 / -1;
  font-size: 12.5px;
  line-height: 1.55;
  color: rgba(242, 247, 244, 0.6);
}

/* ---------- 章节头 ---------- */
.page-contact .section-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-contact .section-head__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--clay);
}

.page-contact .section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.6vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--snow);
}

.page-contact .section-head__note {
  margin: 0;
  max-width: 58ch;
  font-size: 0.96rem;
  line-height: 1.72;
  color: rgba(242, 247, 244, 0.66);
}

/* ---------- 反馈通道 ---------- */
.page-contact .ct-paths {
  padding-block: var(--ct-pad) 0;
}

.page-contact .ct-paths__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-contact .ct-lane {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .ct-lane__item {
  position: relative;
  padding: clamp(16px, 2.4vw, 22px) 0 clamp(16px, 2.4vw, 22px) clamp(20px, 3vw, 32px);
  border-left: 1px solid var(--line);
  transition: border-color var(--speed) var(--ease);
}

.page-contact .ct-lane__item::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: clamp(22px, 2.8vw, 30px);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--alert);
  box-shadow: 0 0 0 4px rgba(255, 106, 61, 0.14);
  transition: transform var(--speed) var(--ease), box-shadow var(--speed) var(--ease);
}

.page-contact .ct-lane__item:hover {
  border-left-color: rgba(57, 245, 200, 0.5);
}

.page-contact .ct-lane__item:hover::before {
  transform: scale(1.25);
  box-shadow: 0 0 0 6px rgba(255, 106, 61, 0.2);
}

.page-contact .ct-lane__item h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.25;
  font-weight: 700;
  color: var(--snow);
}

.page-contact .ct-lane__item p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: rgba(242, 247, 244, 0.72);
}

.page-contact .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-contact .tag--alert {
  color: var(--alert);
  border-color: rgba(255, 106, 61, 0.45);
}

.page-contact .tag--mint {
  color: var(--mint);
  border-color: rgba(57, 245, 200, 0.4);
}

.page-contact .ct-paths__figure,
.page-contact .ct-channels__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--deep);
}

.page-contact .ct-paths__figure img,
.page-contact .ct-channels__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .ct-paths__figure img {
  aspect-ratio: 3 / 2;
}

.page-contact .ct-paths__figure figcaption,
.page-contact .ct-channels__figure figcaption {
  padding: 12px clamp(14px, 2vw, 18px);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--stone);
  border-top: 1px solid var(--line);
}

/* ---------- 联系方式与材料 ---------- */
.page-contact .ct-channels {
  padding-block: var(--ct-pad) 0;
}

.page-contact .ct-channels__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-card {
  position: relative;
  padding: clamp(20px, 3vw, 34px);
  background: var(--deep);
  border: 1px solid var(--line);
}

.page-contact .ct-card--contact {
  border-top: 2px solid var(--alert);
}

.page-contact .ct-card--materials {
  background: rgba(168, 255, 230, 0.06);
  border-top: 2px solid var(--mint);
}

.page-contact .ct-card .eyebrow {
  margin: 0;
  color: var(--stone);
}

.page-contact .ct-card h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  line-height: 1.2;
  font-weight: 700;
  color: var(--snow);
}

.page-contact .ct-contact {
  margin: 18px 0 0;
  display: grid;
}

.page-contact .ct-contact__row {
  padding-block: 14px;
  border-top: 1px solid var(--ghost-line);
}

.page-contact .ct-contact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-contact .ct-contact dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.92rem, 1.9vw, 1.06rem);
  line-height: 1.5;
  color: var(--snow);
  word-break: break-word;
}

.page-contact .ct-contact dd a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 245, 200, 0.35);
  transition: border-color var(--speed) var(--ease), color var(--speed) var(--ease);
}

.page-contact .ct-contact dd a:hover,
.page-contact .ct-contact dd a:focus-visible {
  color: var(--snow);
  border-bottom-color: var(--snow);
}

.page-contact .ct-card__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(255, 106, 61, 0.35);
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(242, 247, 244, 0.72);
}

.page-contact .ct-steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: clamp(12px, 2vw, 16px);
  background: rgba(7, 18, 14, 0.45);
  border-left: 2px solid var(--mint);
  transition: background var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-contact .ct-steps li:hover {
  background: rgba(7, 18, 14, 0.72);
  border-left-color: var(--alert);
}

.page-contact .ct-steps__n {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-contact .ct-steps h4 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--snow);
}

.page-contact .ct-steps p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.66;
  color: rgba(242, 247, 244, 0.7);
}

.page-contact .ct-channels__figure {
  margin-top: var(--ct-gap);
}

.page-contact .ct-channels__figure img {
  aspect-ratio: 10 / 7;
}

/* ---------- 常见问题前置 ---------- */
.page-contact .ct-help {
  padding-block: var(--ct-pad) 0;
}

.page-contact .ct-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-help__list li {
  border: 1px solid var(--line);
  background: rgba(168, 255, 230, 0.03);
  transition: border-color var(--speed) var(--ease), background var(--speed) var(--ease);
}

.page-contact .ct-help__list li:hover,
.page-contact .ct-help__list li:focus-within {
  border-color: rgba(57, 245, 200, 0.55);
  background: rgba(57, 245, 200, 0.07);
}

.page-contact .ct-help__list a {
  display: grid;
  gap: 7px;
  padding: clamp(16px, 2.4vw, 22px);
  color: inherit;
  text-decoration: none;
}

.page-contact .ct-help__list strong {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.16rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--snow);
}

.page-contact .ct-help__list strong::after {
  content: "→";
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--mint);
  transition: transform var(--speed) var(--ease);
}

.page-contact .ct-help__list li:hover strong::after {
  transform: translateX(4px);
}

.page-contact .ct-help__list span {
  font-size: 0.9rem;
  line-height: 1.66;
  color: rgba(242, 247, 244, 0.66);
}

/* ---------- 隐私与须知 ---------- */
.page-contact .ct-legal {
  padding-block: var(--ct-pad) 0;
}

.page-contact .ct-legal__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-legal__item {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  border: 1px solid transparent;
  transition: border-color var(--speed) var(--ease), transform var(--speed) var(--ease);
}

.page-contact .ct-legal__item:hover,
.page-contact .ct-legal__item:focus-visible {
  border-color: var(--alert);
  transform: translateY(-2px);
}

.page-contact .ct-legal__item .eyebrow {
  margin: 0;
  color: var(--clay);
}

.page-contact .ct-legal__item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.3vw, 1.45rem);
  line-height: 1.22;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .ct-legal__item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(7, 18, 14, 0.78);
}

.page-contact .ct-legal__go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink);
  border-bottom: 1px solid rgba(7, 18, 14, 0.35);
  justify-self: start;
  padding-bottom: 2px;
}

.page-contact .ct-legal__item:hover .ct-legal__go {
  border-bottom-color: var(--clay);
  color: var(--clay);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.85fr);
    align-items: end;
  }

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

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

@media (min-width: 960px) {
  .page-contact .ct-paths__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .ct-paths__figure {
    position: sticky;
    top: 24px;
  }

  .page-contact .ct-channels__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-contact .section-head {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-paths__figure img {
    aspect-ratio: 4 / 3;
  }

  .page-contact .ct-hero__grid {
    gap: clamp(32px, 4vw, 56px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}