.page-contact {
  --c-line: rgba(18, 16, 15, .14);
  --c-line-inv: rgba(245, 239, 228, .16);
  --c-soft: rgba(245, 239, 228, .72);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.page-contact p {
  margin: 0;
}

.page-contact .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏：联络板 ---------- */

.page-contact .contact-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: 26px 0 64px;
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  right: -30%;
  bottom: -34%;
  width: 104%;
  height: 90%;
  background: linear-gradient(148deg, var(--flame) 0%, var(--clay) 58%, var(--ember) 100%);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  opacity: .5;
  z-index: 0;
  pointer-events: none;
}

.page-contact .contact-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-contact .contact-hero .breadcrumb a {
  color: rgba(245, 239, 228, .68);
  text-decoration: none;
  transition: color .2s ease;
}

.page-contact .contact-hero .breadcrumb a:hover {
  color: var(--flame);
}

.page-contact .contact-hero .breadcrumb span {
  color: rgba(245, 239, 228, .48);
}

.page-contact .contact-hero .eyebrow {
  color: var(--amber);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: 28px;
  margin-top: 30px;
}

.page-contact .contact-hero__main h1 {
  margin-top: 14px;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin-top: 18px;
  color: var(--c-soft);
  max-width: 34em;
}

.page-contact .contact-hero__annot {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  align-self: start;
  justify-self: start;
  padding: 10px 16px;
  border: 1px solid var(--c-line-inv);
  background: rgba(18, 16, 15, .42);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .contact-hero__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--jade);
  box-shadow: 0 0 0 4px rgba(26, 158, 107, .2);
  flex: 0 0 auto;
}

/* ---------- 三条通道 ---------- */

.page-contact .contact-channels {
  padding: 58px 0 64px;
  background: var(--paper);
}

.page-contact .contact-channels__head {
  max-width: 620px;
}

.page-contact .contact-channels__head h2 {
  margin-top: 12px;
}

.page-contact .contact-channels__head p {
  margin-top: 16px;
  color: var(--stone);
  max-width: 34em;
}

.page-contact .channel-list {
  margin-top: 38px;
  border-top: 1px solid var(--c-line);
}

.page-contact .channel {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 24px 0 24px 0;
  border-bottom: 1px solid var(--c-line);
  transition: background-color .24s ease;
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--flame);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .3s ease;
}

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

.page-contact .channel:hover {
  background: rgba(226, 69, 42, .045);
}

.page-contact .channel__idx {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--clay);
}

.page-contact .channel__name {
  font-size: 22px;
  color: var(--ink);
}

.page-contact .channel__value {
  margin-top: 8px;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .channel__desc {
  margin-top: 10px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
  max-width: 34em;
}

.page-contact .channel__link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--flame);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: color .2s ease, transform .2s ease;
}

.page-contact .channel__link:hover {
  color: var(--clay);
  transform: translateX(3px);
}

.page-contact .channel__hint {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--clay);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .24s ease, transform .24s ease;
}

.page-contact .channel:hover .channel__hint,
.page-contact .channel:focus-within .channel__hint {
  opacity: 1;
  transform: none;
}

.page-contact .channel__aside {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: flex-start;
}

.page-contact .contact-channels__media {
  margin-top: 44px;
}

/* ---------- 提交信息清单 ---------- */

.page-contact .contact-brief {
  padding: 54px 0 62px;
  background: var(--paper);
  border-top: 1px solid var(--c-line);
}

.page-contact .contact-brief__grid {
  display: grid;
  gap: 30px;
}

.page-contact .contact-brief__intro h2 {
  margin-top: 12px;
}

.page-contact .contact-brief__intro p {
  margin-top: 16px;
  color: var(--stone);
  max-width: 32em;
}

.page-contact .checklist {
  border-top: 1px solid var(--c-line);
}

.page-contact .checklist__item {
  position: relative;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .checklist__box {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .checklist__label {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 17px 4px;
  cursor: pointer;
}

.page-contact .checklist__mark {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  border: 1.5px solid var(--stone);
  transition: background-color .2s ease, border-color .2s ease;
}

.page-contact .checklist__box:checked + .checklist__label .checklist__mark {
  background: var(--flame);
  border-color: var(--flame);
}

.page-contact .checklist__box:checked + .checklist__label .checklist__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(42deg);
}

.page-contact .checklist__box:focus-visible + .checklist__label .checklist__mark {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-contact .checklist__text {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .checklist__ready {
  margin-top: 18px;
  position: relative;
  padding-left: 34px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .checklist__ready::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 22px;
  height: 1px;
  background: var(--amber);
}

/* ---------- 在线时段 ---------- */

.page-contact .contact-hours {
  padding: 54px 0 58px;
  background: var(--stone);
  color: var(--paper);
}

.page-contact .contact-hours__head h2 {
  margin-top: 12px;
  color: var(--paper);
}

.page-contact .contact-hours__grid {
  margin-top: 34px;
  border-top: 1px solid var(--c-line-inv);
}

.page-contact .hours-block {
  padding: 24px 0;
  border-bottom: 1px solid var(--c-line-inv);
}

.page-contact .hours-block:last-child {
  border-bottom: none;
}

.page-contact .hours-block__time {
  display: block;
  font-size: 25px;
  letter-spacing: -0.01em;
  color: var(--amber);
}

.page-contact .hours-block__name {
  margin-top: 10px;
  font-size: 18px;
  color: var(--paper);
}

.page-contact .hours-block__desc {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-soft);
  max-width: 30em;
}

/* ---------- 合作对接 ---------- */

.page-contact .contact-partner {
  padding: 60px 0 64px;
  background: var(--paper);
}

.page-contact .contact-partner__grid {
  display: grid;
  gap: 34px;
}

.page-contact .contact-partner__grid h2 {
  margin-top: 12px;
}

.page-contact .contact-partner__grid > div > p {
  margin-top: 16px;
  color: var(--stone);
  max-width: 34em;
}

.page-contact .partner-list {
  margin-top: 26px;
  border-top: 1px solid var(--c-line);
}

.page-contact .partner-list__item {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-contact .partner-list__name {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--clay);
}

.page-contact .partner-list__desc {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
  max-width: 34em;
}

.page-contact .contact-partner__aside {
  align-self: start;
}

.page-contact .contact-partner__aside p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 运营中心与备案 ---------- */

.page-contact .contact-office {
  position: relative;
  padding: 60px 0 68px;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .contact-office::before {
  content: "";
  position: absolute;
  top: -46%;
  right: -18%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(226, 69, 42, .3), rgba(226, 69, 42, 0) 68%);
  pointer-events: none;
}

.page-contact .contact-office > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .contact-office__grid {
  display: grid;
  gap: 32px;
}

.page-contact .contact-office__grid h2 {
  margin-top: 12px;
  color: var(--paper);
}

.page-contact .contact-office__addr {
  display: block;
  margin-top: 20px;
  font-style: normal;
  font-size: 19px;
  line-height: 1.7;
  color: var(--paper);
  max-width: 22em;
}

.page-contact .contact-office__meta {
  margin: 30px 0 0;
  display: grid;
  gap: 18px;
}

.page-contact .contact-office__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(245, 239, 228, .52);
}

.page-contact .contact-office__meta dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--amber);
  overflow-wrap: anywhere;
}

.page-contact .contact-office__stamp {
  justify-self: start;
  display: grid;
  place-items: center;
  width: 136px;
  height: 136px;
  padding: 10px;
  border: 2px solid var(--flame);
  outline: 1px solid rgba(226, 69, 42, .45);
  outline-offset: 4px;
  transform: rotate(-7deg);
  color: var(--flame);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  line-height: 1.6;
  text-align: center;
}

.page-contact .contact-office__media {
  margin-top: 46px;
}

/* ---------- 收束 ---------- */

.page-contact .contact-tail {
  padding: 30px 0 54px;
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid var(--c-line-inv);
}

.page-contact .contact-tail__text {
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(245, 239, 228, .66);
  max-width: 46em;
}

.page-contact .contact-tail__links {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
}

.page-contact .contact-tail__links a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .contact-tail__links a:hover {
  color: var(--flame);
  border-bottom-color: var(--flame);
}

/* ---------- 响应式 ---------- */

@media (hover: none) {
  .page-contact .channel__hint {
    opacity: 1;
    transform: none;
  }
}

@media (min-width: 560px) {
  .page-contact .contact-office__meta {
    grid-template-columns: repeat(2, auto);
    justify-content: start;
    gap: 42px;
  }
}

@media (min-width: 620px) {
  .page-contact .partner-list__item {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-hero {
    padding: 34px 0 84px;
  }

  .page-contact .contact-hero::before {
    right: -14%;
    bottom: -22%;
    width: 72%;
    height: 94%;
    opacity: .9;
  }

  .page-contact .contact-hours__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .hours-block {
    border-bottom: none;
    border-right: 1px solid var(--c-line-inv);
    padding: 26px 28px;
  }

  .page-contact .hours-block:first-child {
    padding-left: 0;
  }

  .page-contact .hours-block:last-child {
    border-right: none;
    padding-right: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: 7fr 4fr;
    align-items: end;
    gap: 56px;
  }

  .page-contact .contact-hero__annot {
    justify-self: end;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    padding: 20px 12px;
    border: none;
    border-top: 1px solid var(--amber);
    background: transparent;
    letter-spacing: .28em;
  }

  .page-contact .contact-hero__dot {
    display: none;
  }

  .page-contact .contact-channels {
    padding: 84px 0 96px;
  }

  .page-contact .channel {
    grid-template-columns: 64px minmax(0, 1fr) 190px;
    gap: 34px;
    align-items: start;
    padding: 30px 0;
  }

  .page-contact .channel__aside {
    justify-content: flex-end;
    padding-top: 4px;
  }

  .page-contact .contact-brief {
    padding: 72px 0 92px;
  }

  .page-contact .contact-brief__grid {
    grid-template-columns: 4fr 7fr;
    gap: 64px;
    align-items: start;
  }

  .page-contact .contact-hours {
    padding: 76px 0 84px;
  }

  .page-contact .contact-partner {
    padding: 88px 0 96px;
  }

  .page-contact .contact-partner__grid {
    grid-template-columns: 8fr 4fr;
    gap: 56px;
    align-items: start;
  }

  .page-contact .contact-office {
    padding: 88px 0 96px;
  }

  .page-contact .contact-office__grid {
    grid-template-columns: minmax(0, 1fr) 180px;
    gap: 56px;
    align-items: center;
  }

  .page-contact .contact-office__stamp {
    justify-self: end;
  }

  .page-contact .contact-tail {
    padding: 34px 0 62px;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .channel__name {
    font-size: 24px;
  }
}