.page-contact {
  --contact-cut: clamp(14px, 2vw, 22px);
  --contact-rhythm: clamp(28px, 5vw, 60px);
  color: var(--ivory);
}

.page-contact .contact-crumb {
  padding-top: clamp(18px, 3.5vw, 34px);
  padding-bottom: clamp(6px, 1.4vw, 14px);
}

/* ---------- 首屏：左右分屏前台 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 78%;
  background:
    radial-gradient(58% 76% at 18% 0%, rgba(212, 166, 58, .18), transparent 68%),
    radial-gradient(46% 64% at 86% 8%, rgba(56, 224, 208, .13), transparent 70%),
    radial-gradient(40% 50% at 60% 40%, rgba(123, 77, 255, .10), transparent 72%);
  pointer-events: none;
  z-index: -1;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-rhythm);
  align-items: start;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 3.9rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(16px, 2.6vw, 26px);
  color: var(--ivory);
  transform: skewX(-1.2deg);
  transform-origin: left bottom;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .page-contact .contact-hero__title {
    background: linear-gradient(102deg, var(--ivory) 18%, var(--gold-hi) 74%, var(--gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
  }
}

.page-contact .contact-hero__lede {
  max-width: 46ch;
  margin: 0 0 clamp(24px, 3.6vw, 38px);
  font-size: clamp(.96rem, 1.7vw, 1.06rem);
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .contact-lines {
  display: grid;
  gap: 12px;
  max-width: 500px;
}

.page-contact .contact-line {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "label label"
    "value btn"
    "hint hint";
  align-items: center;
  gap: 6px 14px;
  padding: 15px 18px 16px;
  background: linear-gradient(152deg, rgba(11, 21, 48, .94), rgba(5, 10, 24, .88));
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.page-contact .contact-line::after {
  content: "";
  position: absolute;
  right: 9px;
  bottom: 9px;
  width: 12px;
  height: 12px;
  border-right: 1px solid var(--line-gold);
  border-bottom: 1px solid var(--line-gold);
  transform: skewX(-22deg);
  pointer-events: none;
}

.page-contact .contact-line:hover,
.page-contact .contact-line:focus-within {
  border-color: var(--line-gold);
  background: linear-gradient(152deg, rgba(16, 42, 67, .96), rgba(11, 21, 48, .92));
}

.page-contact .contact-line__label {
  grid-area: label;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-contact .contact-line__value {
  grid-area: value;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(.82rem, 2.6vw, .98rem);
  color: var(--ivory);
  overflow-wrap: anywhere;
}

.page-contact .contact-line__btn {
  grid-area: btn;
  white-space: nowrap;
}

.page-contact .contact-line__hint {
  grid-area: hint;
  font-size: .78rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-contact .contact-line .is-copied,
.page-contact .copy-field.is-copied .contact-line__btn {
  border-color: var(--cyan);
}

.page-contact .contact-hero__aside {
  position: relative;
  display: grid;
  gap: 14px;
}

.page-contact .contact-hero__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-status {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  background: rgba(16, 42, 67, .52);
  border: 1px solid var(--line-cyan);
}

.page-contact .contact-status__item {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-status__item:last-child {
  border-bottom: 0;
}

.page-contact .contact-status__k {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .contact-status__v {
  font-size: .86rem;
  color: var(--ivory);
  text-align: right;
}

/* ---------- 合作方向 ---------- */
.page-contact .contact-coop {
  position: relative;
  background: linear-gradient(180deg, rgba(16, 42, 67, .58), rgba(5, 10, 24, 0) 82%);
}

.page-contact .contact-coop__sub {
  max-width: 54ch;
  margin: 0;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .coop-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 28px) clamp(18px, 2.2vw, 24px) clamp(26px, 3vw, 34px);
  background: linear-gradient(164deg, rgba(11, 21, 48, .96), rgba(5, 10, 24, .92));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}

.page-contact .coop-card:hover,
.page-contact .coop-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--line-gold);
  background: linear-gradient(164deg, rgba(16, 42, 67, .96), rgba(11, 21, 48, .94));
}

.page-contact .coop-card__badge {
  align-self: flex-start;
}

.page-contact .coop-card__badge--gold {
  border-color: var(--line-gold);
  color: var(--gold-hi);
}

.page-contact .coop-card__title {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-contact .coop-card__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 信件与资料 ---------- */
.page-contact .contact-mail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-rhythm);
  align-items: center;
}

.page-contact .contact-mail__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-contact .contact-mail__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-mail__text {
  max-width: 52ch;
  margin: 0;
  font-size: .96rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .contact-address {
  display: grid;
  gap: 6px;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 18px 20px;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: clamp(.82rem, 2.2vw, .9rem);
  line-height: 1.7;
  color: var(--ivory);
  background: linear-gradient(100deg, rgba(140, 47, 74, .26), rgba(11, 21, 48, .7));
  border-left: 2px solid var(--wine);
}

.page-contact .contact-address__k {
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--gold-hi);
}

.page-contact .contact-address__note {
  font-family: var(--font-body);
  font-size: .8rem;
  color: var(--mist);
}

/* ---------- 响应时间带 ---------- */
.page-contact .hours-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(22px, 3.2vw, 36px);
  background: linear-gradient(122deg, rgba(212, 166, 58, .15), rgba(56, 224, 208, .07) 62%, rgba(5, 10, 24, 0));
  border: 1px solid var(--line-gold);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

.page-contact .hours-band__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-contact .hours-band__items {
  display: grid;
  gap: 16px;
}

.page-contact .hours-item {
  display: grid;
  gap: 6px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-contact .hours-item__time {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-contact .hours-item__text {
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 反馈材料清单 ---------- */
.page-contact .contact-brief__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-rhythm);
  align-items: start;
}

.page-contact .contact-brief__text {
  max-width: 52ch;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  font-size: .96rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .check-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, .025);
  border-left: 2px solid var(--line-gold);
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .check-item:hover,
.page-contact .check-item:focus-within {
  background: rgba(16, 42, 67, .6);
  border-left-color: var(--gold);
}

.page-contact .check-item input {
  flex: none;
  width: 17px;
  height: 17px;
  margin: 4px 0 0;
  accent-color: var(--gold);
  cursor: pointer;
}

.page-contact .check-item__text {
  font-size: .88rem;
  line-height: 1.8;
  color: var(--mist);
  cursor: pointer;
}

.page-contact .check-item__text strong {
  color: var(--ivory);
  font-weight: 700;
}

.page-contact .check-item input:checked + .check-item__text {
  color: var(--cyan);
}

.page-contact .contact-brief__note {
  display: grid;
  gap: 14px;
  justify-items: start;
  padding: clamp(20px, 2.8vw, 28px);
  background: linear-gradient(160deg, rgba(16, 42, 67, .82), rgba(5, 10, 24, .9));
  border: 1px solid var(--line-cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-contact .contact-brief__note p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 继续了解 ---------- */
.page-contact .contact-next__title {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-contact .contact-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-contact .contact-next__link {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  text-decoration: none;
  color: inherit;
  background: rgba(255, 255, 255, .022);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-cyan);
  transition: transform .28s var(--ease), border-color .28s var(--ease), background .28s var(--ease);
}

.page-contact .contact-next__link:hover,
.page-contact .contact-next__link:focus-visible {
  transform: translateY(-3px);
  border-color: var(--line-gold);
  background: rgba(16, 42, 67, .55);
}

.page-contact .contact-next__k {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--gold-hi);
}

.page-contact .contact-next__v {
  font-size: .88rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-next__legal {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: .82rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-next__legal a {
  color: var(--gold-hi);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-status {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-status__item {
    grid-template-columns: 1fr;
    gap: 4px;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-contact .contact-status__item:last-child {
    border-right: 0;
  }

  .page-contact .contact-status__v {
    text-align: left;
  }

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

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

@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(36px, 5vw, 76px);
    align-items: center;
  }

  .page-contact .contact-mail__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }

  .page-contact .contact-brief__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-contact .hours-band {
    grid-template-columns: minmax(0, .55fr) minmax(0, 1.45fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: start;
  }

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

  .page-contact .hours-item {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: 0 0 0 18px;
  }
}

@media (min-width: 1080px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .contact-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .contact-line,
  .page-contact .check-item,
  .page-contact .contact-next__link {
    transition: none;
  }

  .page-contact .coop-card:hover,
  .page-contact .coop-card:focus-within,
  .page-contact .contact-next__link:hover,
  .page-contact .contact-next__link:focus-visible {
    transform: none;
  }
}