.page-contact {
  --pc-card-radius: 22px;
  --pc-soft-radius: 14px;
  --pc-pad: clamp(1.15rem, 3.2vw, 2rem);
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-body);
}

/* 面包屑 */
.page-contact .crumbs {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}
.page-contact .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .05em;
  color: var(--muted);
}
.page-contact .crumbs__link {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}
.page-contact .crumbs__link:hover,
.page-contact .crumbs__link:focus-visible {
  color: var(--red);
  border-bottom-color: var(--gold);
}
.page-contact .crumbs__sep {
  color: var(--gold);
}
.page-contact .crumbs__current {
  color: var(--red);
  font-weight: 700;
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(2.25rem, 5.5vw, 4rem);
  isolation: isolate;
}
.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -9%;
  width: 54%;
  height: 144%;
  background: linear-gradient(150deg, var(--red) 0%, var(--red-deep) 74%, #3b1817 100%);
  clip-path: polygon(46% 0%, 100% 0%, 100% 100%, 0% 100%);
  z-index: -1;
}
.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(1.75rem, 4.5vw, 3rem);
  align-items: start;
}
.page-contact .contact-hero__title {
  margin: .85rem 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.8rem, 5.2vw, 3.25rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--ink);
  max-width: 20ch;
  text-wrap: balance;
}
.page-contact .contact-hero__accent {
  color: var(--red);
  box-shadow: inset 0 -0.28em 0 rgba(201, 161, 90, .32);
}
.page-contact .contact-hero .lede {
  margin: 1rem 0 0;
  max-width: 52ch;
  color: var(--ink-2);
  font-size: clamp(.98rem, 1.8vw, 1.08rem);
  line-height: 1.8;
}
.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: clamp(1.15rem, 3vw, 1.8rem);
}

/* 首屏右侧资料卡 */
.page-contact .contact-hero__panel {
  background: var(--sand-3);
  border: 1px solid rgba(30, 26, 23, .09);
  border-left: 4px solid var(--gold);
  border-radius: var(--pc-card-radius);
  padding: var(--pc-pad);
  box-shadow: var(--shadow-1);
}
.page-contact .panel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--muted);
}
.page-contact .panel-clock {
  display: flex;
  align-items: baseline;
  gap: .45rem;
  margin: .4rem 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.55rem, 4.4vw, 2.15rem);
  letter-spacing: -.03em;
  color: var(--red);
}
.page-contact .panel-clock em {
  font-style: normal;
  font-size: .68em;
  color: var(--gold);
}
.page-contact .panel-meta {
  margin: .3rem 0 0;
  font-size: .84rem;
  letter-spacing: .04em;
  color: var(--muted);
}
.page-contact .contact-hero__panel .rule {
  margin: 1.1rem 0;
  border: 0;
  border-top: 1px solid var(--line-soft);
}
.page-contact .panel-facts {
  margin: 0;
  display: grid;
  gap: .65rem;
}
.page-contact .panel-facts__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-size: .9rem;
}
.page-contact .panel-facts__row dt {
  color: var(--muted);
  letter-spacing: .04em;
}
.page-contact .panel-facts__row dd {
  margin: 0;
  font-weight: 700;
  color: var(--ink);
  text-align: right;
}

/* 联络主体 */
.page-contact .contact-body {
  padding-block: clamp(1.75rem, 4.5vw, 3.25rem);
}
.page-contact .contact-body__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-contact .channel-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--red) 0%, var(--red-deep) 100%);
  color: var(--sand-3);
  border-radius: var(--radius-lg);
  padding: var(--pc-pad);
  box-shadow: var(--shadow-2);
}
.page-contact .channel-card::after {
  content: "";
  position: absolute;
  right: -32%;
  bottom: -42%;
  width: 68%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 161, 90, .38), transparent 68%);
  pointer-events: none;
}
.page-contact .channel-card__eyebrow {
  position: relative;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--gold-2);
}
.page-contact .channel-card__title {
  position: relative;
  margin: .55rem 0 .6rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  line-height: 1.26;
  letter-spacing: -.015em;
  color: var(--sand-3);
}
.page-contact .channel-card__text {
  position: relative;
  margin: 0;
  font-size: .94rem;
  line-height: 1.78;
  color: rgba(245, 237, 224, .82);
}
.page-contact .channel-list {
  position: relative;
  margin: 1.3rem 0 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}
.page-contact .channel-item {
  display: grid;
  gap: .2rem;
  padding-top: .9rem;
  border-top: 1px solid rgba(245, 237, 224, .2);
}
.page-contact .channel-item:first-child {
  padding-top: 0;
  border-top: 0;
}
.page-contact .channel-item__key {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--gold-2);
}
.page-contact .channel-item__value {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--sand-3);
  word-break: break-word;
}
.page-contact .channel-item__value--mail {
  font-family: var(--font-mono);
  font-size: clamp(.98rem, 2.5vw, 1.12rem);
  font-weight: 700;
  color: var(--gold-2);
  letter-spacing: -.01em;
}
.page-contact .channel-item__value--tel {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .01em;
}
.page-contact .channel-card__hint {
  position: relative;
  margin: 1.1rem 0 0;
  padding-top: .9rem;
  border-top: 1px solid rgba(245, 237, 224, .2);
  font-size: .84rem;
  line-height: 1.72;
  color: rgba(245, 237, 224, .7);
}

/* 反馈准备清单 */
.page-contact .checklist__title {
  margin: .6rem 0 .55rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.4vw, 2.05rem);
  line-height: 1.24;
  letter-spacing: -.018em;
  color: var(--ink);
}
.page-contact .checklist__lead {
  margin: 0 0 1.3rem;
  max-width: 56ch;
  color: var(--ink-2);
  line-height: 1.8;
}
.page-contact .checklist__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}
.page-contact .checklist__item {
  position: relative;
}
.page-contact .checklist__box {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.page-contact .checklist__label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .85rem;
  align-items: start;
  padding: .95rem 1.05rem;
  background: var(--sand-3);
  border: 1px solid var(--line-soft);
  border-radius: var(--pc-soft-radius);
  cursor: pointer;
  transition: border-color .16s var(--ease), background-color .16s var(--ease), transform .16s var(--ease);
}
.page-contact .checklist__label:hover {
  border-color: rgba(201, 161, 90, .62);
  transform: translateY(-1px);
}
.page-contact .checklist__mark {
  width: 22px;
  height: 22px;
  margin-top: .15rem;
  border: 1.5px solid var(--muted);
  border-radius: 7px;
  display: grid;
  place-items: center;
  transition: background-color .16s var(--ease), border-color .16s var(--ease);
}
.page-contact .checklist__mark::after {
  content: "";
  width: 10px;
  height: 5px;
  border-left: 2px solid var(--sand-3);
  border-bottom: 2px solid var(--sand-3);
  transform: rotate(-45deg) scale(.35);
  opacity: 0;
  transition: opacity .16s var(--ease), transform .16s var(--ease);
}
.page-contact .checklist__box:checked + .checklist__label {
  border-color: rgba(201, 161, 90, .8);
  background: var(--sand-2);
}
.page-contact .checklist__box:checked + .checklist__label .checklist__mark {
  background: var(--red);
  border-color: var(--red);
}
.page-contact .checklist__box:checked + .checklist__label .checklist__mark::after {
  opacity: 1;
  transform: rotate(-45deg) scale(1);
}
.page-contact .checklist__box:focus-visible + .checklist__label {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}
.page-contact .checklist__name {
  display: block;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -.01em;
  color: var(--ink);
}
.page-contact .checklist__desc {
  display: block;
  margin-top: .26rem;
  font-size: .89rem;
  line-height: 1.72;
  color: var(--muted);
}
.page-contact .checklist__figure {
  margin: 1.4rem 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--night);
  box-shadow: var(--shadow-1);
}
.page-contact .checklist__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-contact .checklist__caption {
  padding: .8rem 1.05rem .95rem;
  font-size: .82rem;
  line-height: 1.7;
  color: rgba(245, 237, 224, .74);
  background: var(--night);
}

/* 合作与内容咨询 */
.page-contact .collab {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: var(--sand-3);
  padding-block: clamp(2rem, 5vw, 3.75rem);
}
.page-contact .collab::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(58% 82% at 10% 0%, rgba(201, 161, 90, .2), transparent 62%),
    radial-gradient(52% 72% at 94% 100%, rgba(46, 74, 122, .72), transparent 62%);
  pointer-events: none;
}
.page-contact .collab__inner {
  position: relative;
}
.page-contact .collab__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--gold-2);
}
.page-contact .collab__title {
  margin: .6rem 0 .6rem;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.6vw, 2.3rem);
  line-height: 1.24;
  letter-spacing: -.018em;
  color: var(--sand-3);
}
.page-contact .collab__lead {
  margin: 0;
  max-width: 58ch;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(245, 237, 224, .76);
}
.page-contact .collab__cards {
  display: grid;
  gap: .9rem;
  margin-top: 1.6rem;
}
.page-contact .collab__card {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(245, 237, 224, .18);
  border-radius: var(--pc-card-radius);
  padding: 1.25rem 1.2rem 1.3rem;
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}
.page-contact .collab__card:hover {
  border-color: rgba(201, 161, 90, .7);
  background: rgba(255, 255, 255, .1);
}
.page-contact .collab__card h3 {
  margin: 0 0 .5rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -.01em;
  color: var(--sand-3);
}
.page-contact .collab__card p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.78;
  color: rgba(245, 237, 224, .74);
}
.page-contact .collab__link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: .9rem;
  padding-bottom: .1rem;
  font-size: .88rem;
  font-weight: 700;
  color: var(--gold-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(226, 194, 136, .42);
}
.page-contact .collab__link::after {
  content: "→";
  font-family: var(--font-mono);
  transition: transform .16s var(--ease);
}
.page-contact .collab__link:hover::after,
.page-contact .collab__link:focus-visible::after {
  transform: translateX(3px);
}

/* 地址与备案 */
.page-contact .location {
  padding-block: clamp(2rem, 5vw, 3.5rem) clamp(2.25rem, 5.5vw, 4rem);
}
.page-contact .location__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
}
.page-contact .location__title {
  margin: .6rem 0 .55rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  line-height: 1.26;
  letter-spacing: -.018em;
  color: var(--ink);
}
.page-contact .location__text {
  margin: 0 0 1.2rem;
  max-width: 52ch;
  color: var(--ink-2);
  line-height: 1.8;
}
.page-contact .location__facts {
  margin: 0;
  display: grid;
  gap: .55rem;
}
.page-contact .location__fact {
  display: grid;
  gap: .18rem;
  padding: .8rem 1rem;
  background: var(--sand-3);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--pc-soft-radius) var(--pc-soft-radius) 0;
}
.page-contact .location__fact dt {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--muted);
}
.page-contact .location__fact dd {
  margin: 0;
  font-size: .94rem;
  line-height: 1.6;
  color: var(--ink);
}
.page-contact .location__mono {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--blue);
  letter-spacing: -.01em;
}
.page-contact .help-links {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .6rem;
  margin: 1.35rem 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .help-links a {
  display: inline-block;
  padding: .48rem .92rem;
  font-size: .86rem;
  color: var(--ink-2);
  text-decoration: none;
  background: var(--sand-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  transition: border-color .16s var(--ease), color .16s var(--ease), transform .16s var(--ease);
}
.page-contact .help-links a:hover,
.page-contact .help-links a:focus-visible {
  color: var(--red);
  border-color: var(--gold);
  transform: translateY(-1px);
}
.page-contact .location__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--sand-2);
  box-shadow: var(--shadow-1);
}
.page-contact .location__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-contact .location__caption {
  padding: .75rem 1rem .9rem;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--muted);
  background: var(--sand-2);
}

/* 桌面布局 */
@media (min-width: 780px) {
  .page-contact .collab__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3rem);
  }
  .page-contact .location__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-body__grid {
    grid-template-columns: minmax(0, 372px) minmax(0, 1fr);
  }
  .page-contact .channel-card {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
  }
}

@media (max-width: 899px) {
  .page-contact .contact-hero::before {
    display: none;
  }
  .page-contact .contact-hero {
    background:
      radial-gradient(120% 74% at 104% 4%, rgba(107, 45, 43, .16), transparent 62%),
      var(--sand);
  }
}

@media (max-width: 420px) {
  .page-contact .channel-item__value--mail {
    font-size: .92rem;
  }
  .page-contact .panel-facts__row {
    flex-direction: column;
    align-items: flex-start;
    gap: .15rem;
  }
  .page-contact .panel-facts__row dd {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .checklist__label,
  .page-contact .checklist__mark,
  .page-contact .collab__link::after,
  .page-contact .help-links a {
    transition: none;
  }
  .page-contact .checklist__label:hover,
  .page-contact .help-links a:hover {
    transform: none;
  }
}