.page-contact {
  --ct-pad-block: 52px;
  --ct-rule: var(--line-soft);
  display: block;
}

/* ---------- 首屏：联系信息即主视觉 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 34px 0 46px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.32;
}

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

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 22, 0.5) 0%, rgba(5, 10, 22, 0.9) 58%, var(--ink-950) 100%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(243, 237, 226, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 237, 226, 0.05) 1px, transparent 1px);
  background-size: 96px 96px;
}

.page-contact .contact-hero__slash {
  position: absolute;
  left: -6%;
  right: -6%;
  bottom: 22px;
  z-index: 2;
  height: 1px;
  transform: rotate(-2.5deg);
  background: linear-gradient(90deg, transparent 0%, rgba(47, 227, 208, 0.5) 28%, rgba(255, 106, 43, 0.55) 72%, transparent 100%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 3;
  display: grid;
  gap: 16px;
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.5rem, 9.5vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  color: var(--paper-50);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 50ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--paper-100);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 2px;
  margin-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-hero__note {
  margin: 4px 0 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--slate-400);
}

.page-contact .contact-line {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 0;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--line-soft);
  transition: border-color 0.3s var(--ease);
}

.page-contact .contact-line__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--slate-400);
}

.page-contact .contact-line__value {
  align-self: flex-start;
  max-width: 100%;
  padding-bottom: 4px;
  font-size: clamp(0.95rem, 4vw, 1.55rem);
  font-weight: 500;
  color: var(--paper-50);
  border-bottom: 2px solid rgba(47, 227, 208, 0.55);
  overflow-wrap: anywhere;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-contact .contact-line:hover .contact-line__value,
.page-contact .contact-line:focus-visible .contact-line__value {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
}

.page-contact .contact-line:focus-visible {
  outline: 2px solid rgba(47, 227, 208, 0.6);
  outline-offset: 4px;
}

/* ---------- 通用章节 ---------- */
.page-contact .slab {
  padding: var(--ct-pad-block) 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .slab__head {
  display: grid;
  gap: 10px;
}

.page-contact .slab__index {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--orange-500);
}

.page-contact .slab__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.7rem, 5.6vw, 2.8rem);
  line-height: 1.06;
  color: var(--paper-50);
}

.page-contact .slab__lead {
  margin: 0;
  max-width: 54ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--paper-100);
}

.page-contact .mail-line {
  margin: 4px 0 0;
}

.page-contact .mail-line a {
  display: inline-block;
  max-width: 100%;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 3.8vw, 1.35rem);
  color: var(--paper-50);
  text-decoration: none;
  border-bottom: 2px solid rgba(47, 227, 208, 0.55);
  overflow-wrap: anywhere;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-contact .mail-line a:hover,
.page-contact .mail-line a:focus-visible {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
}

.page-contact .mail-line a:focus-visible {
  outline: 2px solid rgba(47, 227, 208, 0.6);
  outline-offset: 4px;
}

/* ---------- 01 自助确认 ---------- */
.page-contact .check-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .check-list__item {
  display: grid;
  grid-template-columns: 38px 1fr;
  column-gap: 14px;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .check-list__num {
  grid-row: 1 / span 2;
  padding-top: 3px;
  font-size: 0.78rem;
  color: var(--cyan-400);
}

.page-contact .check-list__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--paper-50);
}

.page-contact .check-list__text {
  grid-column: 2;
  margin: 8px 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--slate-400);
}

/* ---------- 02 / 03 左右分栏 ---------- */
.page-contact .split {
  display: grid;
  gap: 30px;
}

.page-contact .aside__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--paper-50);
}

.page-contact .plain-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .plain-list li {
  display: grid;
  gap: 7px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .plain-list strong {
  font-size: 0.96rem;
  font-weight: 500;
  color: var(--cyan-400);
}

.page-contact .plain-list span {
  font-size: 0.89rem;
  line-height: 1.78;
  color: var(--slate-400);
}

.page-contact .aside__foot {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--violet-500);
  font-size: 0.87rem;
  line-height: 1.78;
  color: var(--paper-100);
}

/* ---------- 附上一份清单（暖纸色实色层） ---------- */
.page-contact .attach {
  padding: 46px 0;
  background: var(--paper-50);
  color: var(--ink-950);
  border-top: 1px solid rgba(5, 10, 22, 0.14);
  border-bottom: 1px solid rgba(5, 10, 22, 0.14);
}

.page-contact .attach__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 4.6vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

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

.page-contact .attach__item {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: baseline;
  column-gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(5, 10, 22, 0.14);
}

.page-contact .attach__num {
  font-size: 0.76rem;
  color: var(--orange-500);
}

.page-contact .attach__text {
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--ink-950);
}

/* ---------- 04 地址细线框 ---------- */
.page-contact .addr {
  position: relative;
  margin-top: 24px;
  padding: 34px 22px 30px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, rgba(18, 32, 60, 0.72), rgba(10, 18, 38, 0.5));
}

.page-contact .addr__tick {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 0 solid var(--orange-500);
}

.page-contact .addr__tick--tl { top: -1px; left: -1px; border-top-width: 2px; border-left-width: 2px; }
.page-contact .addr__tick--tr { top: -1px; right: -1px; border-top-width: 2px; border-right-width: 2px; }
.page-contact .addr__tick--bl { bottom: -1px; left: -1px; border-bottom-width: 2px; border-left-width: 2px; }
.page-contact .addr__tick--br { bottom: -1px; right: -1px; border-bottom-width: 2px; border-right-width: 2px; }

.page-contact .addr__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--slate-400);
}

.page-contact .addr__value {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.3rem, 5.2vw, 2rem);
  line-height: 1.35;
  color: var(--paper-50);
}

.page-contact .addr__note {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: 0.89rem;
  line-height: 1.8;
  color: var(--slate-400);
}

/* ---------- 05 回复节奏 ---------- */
.page-contact .rhythm {
  display: grid;
  gap: 34px;
}

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

.page-contact .rhythm__item {
  display: grid;
  grid-template-columns: 56px 1fr;
  column-gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .rhythm__rank {
  padding-top: 3px;
  font-size: 0.76rem;
  color: var(--cyan-400);
}

.page-contact .rhythm__item h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--paper-50);
}

.page-contact .rhythm__item p {
  margin: 7px 0 0;
  font-size: 0.89rem;
  line-height: 1.78;
  color: var(--slate-400);
}

.page-contact .rhythm__media {
  margin: 0;
}

/* ---------- 06 合作对接 ---------- */
.page-contact .partner-dirs {
  display: grid;
  gap: 0;
}

.page-contact .partner-dir {
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .partner-dir p {
  margin: 10px 0 0;
  font-size: 0.89rem;
  line-height: 1.78;
  color: var(--slate-400);
}

.page-contact .partner__note {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--cyan-400);
  background: rgba(18, 32, 60, 0.55);
  font-size: 0.89rem;
  line-height: 1.8;
  color: var(--paper-100);
}

.page-contact .partner__note a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 208, 0.5);
}

.page-contact .partner__note a:hover,
.page-contact .partner__note a:focus-visible {
  border-color: var(--cyan-400);
}

/* ---------- 收尾 ---------- */
.page-contact .contact-close {
  padding: 44px 0 56px;
  border-top: 1px solid var(--line-soft);
  background: var(--ink-850);
}

.page-contact .contact-close__inner {
  display: grid;
  gap: 22px;
}

.page-contact .contact-close__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--paper-100);
}

.page-contact .contact-close__inner .btn {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    padding: 48px 0 62px;
  }

  .page-contact .contact-hero__inner {
    gap: 20px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: 1.5fr 1fr;
    column-gap: 44px;
  }

  .page-contact .contact-line {
    border-bottom: 0;
    border-top: 1px solid var(--line-soft);
  }

  .page-contact .attach__list {
    grid-template-columns: 1fr 1fr;
    column-gap: 46px;
  }

  .page-contact .addr {
    padding: 42px 40px 38px;
  }
}

@media (min-width: 900px) {
  .page-contact {
    --ct-pad-block: 68px;
  }

  .page-contact .slab__head {
    grid-template-columns: minmax(52px, 84px) 1fr;
    column-gap: 28px;
  }

  .page-contact .slab__head > *:not(.slab__index) {
    grid-column: 2;
  }

  .page-contact .slab__index {
    grid-column: 1;
    grid-row: 1;
    padding-top: 12px;
  }

  .page-contact .check-list {
    grid-template-columns: repeat(3, 1fr);
    column-gap: 34px;
  }

  .page-contact .split--a {
    grid-template-columns: 7fr 5fr;
    column-gap: 52px;
    align-items: start;
  }

  .page-contact .split--b {
    grid-template-columns: 5fr 7fr;
    column-gap: 52px;
    align-items: start;
  }

  .page-contact .split--b .slab__head {
    order: 2;
  }

  .page-contact .split--b .split__aside {
    order: 1;
  }

  .page-contact .rhythm {
    grid-template-columns: 7fr 5fr;
    column-gap: 52px;
    align-items: start;
  }

  .page-contact .contact-close__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    column-gap: 48px;
  }

  .page-contact .contact-close__inner .btn {
    justify-self: end;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-hero {
    padding: 62px 0 76px;
  }

  .page-contact .contact-hero__lead {
    font-size: 1.05rem;
  }
}