.page-contact {
  --pc-cut: 18px;
  --pc-clip: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
  --pc-clip-alt: polygon(var(--pc-cut) 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%, 0 var(--pc-cut));
  background: var(--c-ink);
  color: var(--c-silver);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .ch--hero {
  position: relative;
  padding: calc(var(--header-h) + 34px) 0 58px;
  background:
    radial-gradient(120% 82% at 88% 0%, rgba(255, 106, 26, .10), transparent 58%),
    linear-gradient(180deg, var(--c-ink) 0%, var(--c-night) 100%);
}

.page-contact .ch--hero::before {
  content: "";
  position: absolute;
  top: 34%;
  left: -10%;
  width: 72%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 212, 210, .3), transparent);
  transform: rotate(-7deg);
  pointer-events: none;
}

.page-contact .ch__head {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.page-contact .ch__lead h1 {
  margin: 14px 0 0;
  font-size: clamp(36px, 8.8vw, 82px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -.03em;
  color: var(--c-white);
}

.page-contact .ch__lead h1 span {
  display: block;
  color: var(--c-signal);
}

.page-contact .ch__lede {
  max-width: 46ch;
  margin: 0;
}

@media (min-width: 960px) {
  .page-contact .ch__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }
}

/* 三块联系方式 */
.page-contact .channel-row {
  list-style: none;
  margin: 46px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

@media (min-width: 800px) {
  .page-contact .channel-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .channel {
  position: relative;
  padding: 24px 22px 36px;
  background: var(--c-night);
  clip-path: var(--pc-clip);
  transition: background 160ms var(--ease);
}

.page-contact .channel:nth-child(2) {
  clip-path: var(--pc-clip-alt);
}

.page-contact .channel:hover {
  background: var(--c-steel);
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 14px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-signal), rgba(255, 106, 26, 0));
  transform: skewX(-28deg);
  transform-origin: left center;
  opacity: .5;
  transition: opacity 160ms var(--ease);
}

.page-contact .channel:hover::after {
  opacity: 1;
}

.page-contact .channel__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: .26em;
  color: var(--c-mist);
}

.page-contact .channel__label {
  margin: 16px 0 0;
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--c-mist);
}

.page-contact .channel__value {
  margin: 10px 0 0;
  font-size: clamp(18px, 3.2vw, 25px);
  line-height: 1.32;
  color: var(--c-white);
  word-break: break-word;
}

.page-contact .channel:first-child .channel__value {
  font-size: clamp(16px, 2.6vw, 21px);
}

.page-contact .channel__note {
  margin: 16px 0 0;
  max-width: 36ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-mist);
}

/* 受理时段刻度 */
.page-contact .hours {
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .hours__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
}

.page-contact .hours__meta .mono {
  font-size: 14px;
  color: var(--c-gold);
}

.page-contact .hours__meta p {
  margin: 0;
  flex: 1 1 240px;
  font-size: 13.5px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

.page-contact .hours__bar {
  position: relative;
  height: 5px;
  margin-top: 16px;
  background: var(--c-steel);
  overflow: hidden;
}

.page-contact .hours__bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 106, 26, .92) 0%, rgba(255, 106, 26, .38) 64%, rgba(255, 106, 26, 0) 100%);
  transform: skewX(-30deg);
  transform-origin: left center;
}

/* ---------- 章节通用 ---------- */
.page-contact .sect {
  position: relative;
  padding: 54px 0;
  border-top: 1px solid var(--line);
}

.page-contact .sect--deep {
  background: var(--c-night);
}

.page-contact .sect--white {
  background: var(--c-white);
  color: var(--c-moss);
  border-top-color: transparent;
}

.page-contact .chapter-head {
  margin-bottom: 34px;
}

.page-contact .sect--white .h2,
.page-contact .sect--white .h3,
.page-contact .sect--white .lede {
  color: var(--c-moss);
}

.page-contact .sect--white .chapter-num {
  color: rgba(10, 35, 37, .3);
}

/* ---------- 反馈路径 ---------- */
.page-contact .pathway {
  display: grid;
  gap: 32px;
}

@media (min-width: 940px) {
  .page-contact .pathway {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: start;
  }
}

.page-contact .pathway__fig {
  margin: 0;
  background: var(--c-night);
  clip-path: var(--pc-clip);
}

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

.page-contact .pathway__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-contact .pathway__steps li {
  padding-left: 18px;
  border-left: 2px solid var(--line-strong);
  transition: border-color 160ms var(--ease);
}

.page-contact .pathway__steps li:hover {
  border-left-color: var(--c-signal);
}

.page-contact .pathway__idx {
  margin: 0;
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--c-signal);
}

.page-contact .pathway__steps h3 {
  margin: 8px 0 8px;
}

.page-contact .pathway__steps p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 订阅与客户端清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .checklist li {
  padding: 20px 0;
  border-top: 1px solid rgba(10, 35, 37, .14);
  display: grid;
  gap: 6px;
}

.page-contact .checklist li:last-child {
  border-bottom: 1px solid rgba(10, 35, 37, .14);
}

@media (min-width: 760px) {
  .page-contact .checklist li {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 0 28px;
    align-items: baseline;
  }
}

.page-contact .checklist__key {
  margin: 0;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--c-steel);
}

.page-contact .checklist li > p:last-child {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(10, 35, 37, .78);
}

.page-contact .sect__aside {
  margin-top: 34px;
  display: grid;
  gap: 16px;
}

.page-contact .sect__aside p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(10, 35, 37, .68);
}

.page-contact .sect__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .sect--white .btn--ghost {
  border-color: rgba(10, 35, 37, .3);
  color: var(--c-moss);
}

.page-contact .sect--white .btn--ghost:hover,
.page-contact .sect--white .btn--ghost:focus-visible {
  border-color: var(--c-signal);
  color: var(--c-signal);
}

/* ---------- 资料修订 ---------- */
.page-contact .revision {
  display: grid;
  gap: 32px;
}

@media (min-width: 800px) {
  .page-contact .revision {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
  }
}

.page-contact .revision__col h3 {
  margin: 0 0 16px;
}

.page-contact .tick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .tick li {
  position: relative;
  padding-left: 26px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--c-silver);
}

.page-contact .tick li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 13px;
  height: 2px;
  background: var(--c-signal);
  transform: skewX(-30deg);
}

.page-contact .revision__note {
  margin: 34px 0 0;
  padding: 20px 22px;
  max-width: 80ch;
  background: var(--tint-signal);
  border-left: 3px solid var(--c-signal);
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-silver);
}

/* ---------- 本地协作 ---------- */
.page-contact .local {
  display: grid;
  gap: 34px;
}

@media (min-width: 940px) {
  .page-contact .local {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 52px;
    align-items: center;
  }
}

.page-contact .local__body > p:first-child {
  margin: 0;
  font-size: 16px;
  line-height: 1.82;
  color: var(--c-silver);
}

.page-contact .local__body h3 {
  margin: 26px 0 14px;
}

.page-contact .local__fig {
  margin: 0;
  clip-path: var(--pc-clip-alt);
}

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

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

.page-contact .steps li {
  display: flex;
  gap: 14px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--c-silver);
}

.page-contact .steps .mono {
  flex: none;
  padding-top: .2em;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--c-gold);
}

.page-contact .local__more {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .local__more a,
.page-contact .reg__note a {
  color: var(--c-signal);
  text-underline-offset: 4px;
}

/* ---------- 商务合作 ---------- */
.page-contact .biz {
  display: grid;
  gap: 18px;
}

@media (min-width: 860px) {
  .page-contact .biz {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

.page-contact .biz__item {
  padding: 26px 22px 30px;
  background: var(--c-night);
  border-top: 2px solid var(--c-steel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: background 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .biz__item:hover {
  background: var(--c-steel);
  border-top-color: var(--c-signal);
}

.page-contact .biz__tag {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--c-gold);
}

.page-contact .biz__item p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .biz__flow {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .biz__flow p {
  margin: 0;
  max-width: 78ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-silver);
}

/* ---------- 收束带 ---------- */
.page-contact .contact-tail {
  padding: 38px 0;
  background: var(--c-steel);
}

.page-contact .contact-tail p {
  margin: 0;
  max-width: 72ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--c-white);
}

.page-contact .contact-tail a {
  color: var(--c-gold);
  text-underline-offset: 4px;
}

/* ---------- 备案 ---------- */
.page-contact .sect--reg {
  padding-bottom: 66px;
}

.page-contact .reg {
  display: grid;
  gap: 14px;
}

.page-contact .reg__num {
  margin: 0;
  font-size: clamp(20px, 3.6vw, 32px);
  letter-spacing: .06em;
  color: var(--c-gold);
}

.page-contact .reg__note {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-mist);
}

@media (max-width: 520px) {
  .page-contact .ch--hero {
    padding-top: calc(var(--header-h) + 24px);
  }

  .page-contact .channel {
    padding: 22px 18px 34px;
  }

  .page-contact .channel::after {
    left: 18px;
    right: 18px;
  }

  .page-contact .checklist li {
    padding: 17px 0;
  }

  .page-contact .revision__note {
    padding: 16px 16px;
  }
}