.page-contact {
  position: relative;
  overflow-x: hidden;
}

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

/* ---------- 面包屑 ---------- */
.page-contact .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--slate);
}

.page-contact .crumb a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid var(--line-slate);
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .crumb a:hover {
  color: var(--gold-b);
  border-bottom-color: var(--gold-a);
}

.page-contact .crumb__sep {
  color: var(--gold-a);
}

.page-contact .crumb [aria-current="page"] {
  color: var(--gold-a);
}

/* ---------- 首屏 ---------- */
.page-contact .hero {
  padding: 30px 0 10px;
}

.page-contact .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .hero__mark {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .34em;
  color: var(--slate);
}

.page-contact .hero h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 6.6vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: #ffffff;
}

.page-contact .hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--gold-a), var(--gold-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-contact .hero__lede {
  max-width: 34em;
  margin: 0 0 16px;
  font-size: 1rem;
  line-height: 1.82;
  color: var(--text-body);
}

.page-contact .hero__lede:last-child {
  margin-bottom: 0;
}

.page-contact .hero__lede a {
  color: var(--gold-b);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  transition: border-color var(--ease);
}

.page-contact .hero__lede a:hover {
  border-bottom-color: var(--gold-b);
}

.page-contact .hero__figure {
  margin: 0;
  border: 1px solid var(--line-gold);
  background: var(--ink-mid);
  overflow: hidden;
}

.page-contact .hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .hero__figure figcaption {
  padding: 11px 14px;
  border-top: 1px solid var(--line-gold-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--slate);
}

/* ---------- 渠道 + 清单 ---------- */
.page-contact .contact-main {
  position: relative;
  margin-top: 68px;
  padding: 54px 0 66px;
  border-top: 1px solid var(--line-gold);
  overflow: hidden;
}

.page-contact .contact-main__texture {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .13;
  pointer-events: none;
}

.page-contact .contact-main__texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-main__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-contact .contact-main__eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--slate);
}

.page-contact .contact-main__title {
  margin: 0 0 26px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 4.4vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: #ffffff;
}

/* 渠道列表 */
.page-contact .channel-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel {
  position: relative;
  padding: 24px 20px 24px 24px;
  border-top: 1px solid var(--line-gold);
  background: rgba(11, 27, 58, .5);
  transition: background var(--ease), box-shadow var(--ease);
}

.page-contact .channel:last-child {
  border-bottom: 1px solid var(--line-gold);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(180deg, var(--cinnabar), var(--gold-a));
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--ease);
}

.page-contact .channel:hover::before,
.page-contact .channel:focus-within::before {
  transform: scaleY(1);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  background: rgba(18, 41, 79, .88);
  box-shadow: var(--shadow-card);
}

.page-contact .channel__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 10px;
}

.page-contact .channel__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold-a);
}

.page-contact .channel__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.28rem;
  line-height: 1.2;
  color: #ffffff;
}

.page-contact .channel__value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--gold-b);
  overflow-wrap: anywhere;
}

.page-contact .channel__desc {
  max-width: 40em;
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--text-body);
}

/* 准备清单 */
.page-contact .checklist {
  align-self: start;
  padding: 26px 22px 24px;
  border: 1px solid var(--line-gold);
  background: var(--ink-mid);
  box-shadow: var(--shadow-card);
}

.page-contact .checklist__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.22rem;
  line-height: 1.25;
  color: #ffffff;
}

.page-contact .checklist__sub {
  margin: 0 0 18px;
  font-size: .84rem;
  line-height: 1.72;
  color: var(--slate);
}

.page-contact .check {
  position: relative;
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: start;
  padding: 13px 4px;
  border-top: 1px solid var(--line-slate);
  cursor: pointer;
}

.page-contact .check:last-of-type {
  border-bottom: 1px solid var(--line-slate);
}

.page-contact .check__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.page-contact .check__no {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate);
  transition: color var(--ease);
}

.page-contact .check__text {
  font-size: .9rem;
  line-height: 1.74;
  color: var(--text-body);
  transition: color var(--ease);
}

.page-contact .check__text b {
  color: #ffffff;
  font-weight: 600;
}

.page-contact .check__input:checked ~ .check__no {
  color: var(--gold-a);
}

.page-contact .check__input:checked ~ .check__no::after {
  content: " ✓";
  color: var(--gold-b);
}

.page-contact .check__input:checked ~ .check__text {
  color: var(--slate);
}

.page-contact .check__input:focus-visible ~ .check__text {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
}

.page-contact .checklist__foot {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: .06em;
  color: var(--gold-a);
}

/* ---------- 相关页面 ---------- */
.page-contact .contact-next {
  padding: 34px 0;
  border-top: 1px solid var(--line-gold);
}

.page-contact .contact-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .contact-next__item {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--line-slate);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--text-body);
  text-decoration: none;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-contact .contact-next__item:hover,
.page-contact .contact-next__item:focus-visible {
  color: var(--gold-b);
  border-color: var(--gold-a);
  background: rgba(18, 41, 79, .65);
}

/* ---------- 地址与备案 ---------- */
.page-contact .base {
  padding: 50px 0 58px;
  background: var(--paper);
  border-top: 1px solid var(--gold-a);
  color: var(--ink);
}

.page-contact .base__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-contact .base__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--cinnabar);
}

.page-contact .base__addr-value {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 3.2vw, 1.6rem);
  line-height: 1.45;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-contact .base__addr-note {
  max-width: 34em;
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: #4A453C;
}

.page-contact .base__dl {
  display: grid;
  gap: 14px;
  margin: 0;
}

.page-contact .base__row {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 12px;
  align-items: baseline;
}

.page-contact .base__dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: #7A7466;
}

.page-contact .base__dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .88rem;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-next__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .hero {
    padding-top: 40px;
  }

  .page-contact .hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
    gap: 52px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-main {
    margin-top: 88px;
    padding: 62px 0 80px;
  }

  .page-contact .contact-main__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-contact .base__grid {
    grid-template-columns: 8fr 4fr;
    gap: 56px;
  }

  .page-contact .base__meta {
    padding-left: 28px;
    border-left: 1px solid rgba(28, 26, 23, .14);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel::before,
  .page-contact .channel,
  .page-contact .crumb a,
  .page-contact .contact-next__item,
  .page-contact .check__no,
  .page-contact .check__text {
    transition: none;
  }
}