.page-contact {
  --contact-gap: clamp(52px, 8vw, 112px);
  display: block;
  background: var(--night);
  color: var(--ink);
  overflow-x: clip;
}

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

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

/* ---------- 首屏 ---------- */

.page-contact .contact-lead {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(20px, 4vw, 52px));
  padding-bottom: clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--hairline-soft);
  overflow: hidden;
}

.page-contact .contact-lead::after {
  content: "";
  position: absolute;
  right: -12%;
  top: 18%;
  width: min(520px, 60vw);
  height: min(520px, 60vw);
  background: radial-gradient(circle at 40% 40%, rgba(245, 197, 66, .16), transparent 62%);
  pointer-events: none;
}

.page-contact .contact-lead > .container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-lead-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .contact-lead h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(14px, 2vw, 22px);
}

.page-contact .contact-lead .lede {
  margin: 0;
  max-width: 54ch;
}

.page-contact .contact-lead-aside {
  border-left: 2px solid var(--gold);
  padding-left: clamp(14px, 2vw, 22px);
}

.page-contact .contact-lead-aside-label {
  margin: 0 0 6px;
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  color: var(--ink-dim);
}

.page-contact .contact-lead-aside-time {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-contact .contact-lead-aside-note {
  margin: 0;
  font-size: var(--fs-s);
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 章节公共头 ---------- */

.page-contact .contact-section-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.6vw, 42px);
}

.page-contact .contact-section-head .section-title {
  margin-bottom: clamp(10px, 1.6vw, 16px);
}

.page-contact .contact-section-intro {
  margin: 0;
  max-width: 56ch;
  color: var(--ink-dim);
}

/* ---------- 三条通道 ---------- */

.page-contact .contact-channels {
  padding-block: var(--contact-gap);
}

.page-contact .contact-channels-figure {
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-contact .contact-channels-figure .figure-frame {
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--deep);
}

.page-contact .contact-channels-figure .figure-caption {
  margin-top: 12px;
  font-size: var(--fs-xs);
  color: var(--ink-quiet);
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hairline-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .channel-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(24px, 3vw, 36px) clamp(18px, 2.4vw, 28px);
  background: var(--panel);
  transition: background .24s ease;
}

.page-contact .channel-item::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--gold);
}

.page-contact .channel-item--phone::before {
  background: var(--orange);
}

.page-contact .channel-item--addr::before {
  background: var(--cyan);
}

.page-contact .channel-index {
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  color: var(--ink-quiet);
}

.page-contact .channel-name {
  margin: 0;
  font-size: var(--fs-m);
  font-weight: 600;
}

.page-contact .channel-value {
  align-self: flex-start;
  margin: 0;
  font-size: clamp(1.05rem, 2.6vw, 1.55rem);
  line-height: 1.4;
  color: var(--gold);
  overflow-wrap: anywhere;
  word-break: break-word;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(245, 197, 66, .38);
}

.page-contact .channel-item--phone .channel-value {
  color: var(--orange);
  border-bottom-color: rgba(255, 122, 69, .38);
}

.page-contact .channel-item--addr .channel-value {
  color: var(--cyan);
  border-bottom-color: rgba(57, 210, 192, .38);
}

.page-contact .channel-fit {
  margin: auto 0 0;
  font-size: var(--fs-s);
  line-height: 1.75;
  color: var(--ink-dim);
}

.page-contact .channel-note {
  margin: 0;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--ink-quiet);
}

.page-contact .channel-legal {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  font-size: var(--fs-xs);
  letter-spacing: .06em;
  color: var(--ink-quiet);
}

/* ---------- 反馈清单 ---------- */

.page-contact .contact-checklist {
  padding-block: var(--contact-gap);
  border-top: 1px solid var(--hairline-soft);
}

.page-contact .checklist-grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-contact .checklist-copy-text {
  margin: 0 0 16px;
  color: var(--ink-dim);
  line-height: 1.8;
  max-width: 56ch;
}

.page-contact .checklist-copy-text:last-child {
  margin-bottom: 0;
}

.page-contact .checklist-card {
  position: relative;
  padding: clamp(22px, 3vw, 34px);
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: 0 30px 70px -40px rgba(0, 0, 0, .9);
}

.page-contact .checklist-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--gold), var(--cyan) 55%, var(--orange));
}

.page-contact .checklist-card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 16px;
  margin-bottom: clamp(16px, 2.2vw, 22px);
  border-bottom: 1px dashed var(--hairline);
}

.page-contact .checklist-card-hint {
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: .04em;
  color: var(--ink-quiet);
}

.page-contact .checklist-items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .checklist-items label {
  position: relative;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-s);
  background: rgba(11, 59, 46, .5);
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease;
}

.page-contact .checklist-items label:hover {
  border-color: rgba(245, 197, 66, .5);
}

.page-contact .checklist-items input {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 22px;
  height: 22px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .checklist-box {
  width: 22px;
  height: 22px;
  margin-top: 2px;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--edge);
  border-radius: 4px;
  transition: background .2s ease, border-color .2s ease;
}

.page-contact .checklist-box::after {
  content: "";
  width: 11px;
  height: 6px;
  margin-top: -3px;
  border-left: 2px solid var(--deep);
  border-bottom: 2px solid var(--deep);
  transform: rotate(-45deg) scale(.4);
  opacity: 0;
  transition: opacity .18s ease, transform .18s ease;
}

.page-contact .checklist-items input:checked ~ .checklist-box {
  background: var(--gold);
  border-color: var(--gold);
}

.page-contact .checklist-items input:checked ~ .checklist-box::after {
  opacity: 1;
  transform: rotate(-45deg) scale(1);
}

.page-contact .checklist-items input:focus-visible ~ .checklist-box {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .checklist-body {
  display: block;
  min-width: 0;
}

.page-contact .checklist-label {
  display: block;
  margin-bottom: 5px;
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--ink);
}

.page-contact .checklist-desc {
  display: block;
  font-size: var(--fs-s);
  line-height: 1.7;
  color: var(--ink-dim);
}

.page-contact .contact-checklist-figure {
  margin: clamp(30px, 4vw, 48px) 0 0;
  max-width: 720px;
}

.page-contact .contact-checklist-figure .figure-frame {
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--deep);
}

.page-contact .contact-checklist-figure .figure-caption {
  margin-top: 12px;
  font-size: var(--fs-xs);
  color: var(--ink-quiet);
}

/* ---------- 合作与媒体 ---------- */

.page-contact .contact-partner {
  padding-block: var(--contact-gap);
  border-top: 1px solid var(--hairline-soft);
}

.page-contact .partner-grid {
  display: grid;
  gap: 1px;
  background: var(--hairline-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .partner-card {
  padding: clamp(24px, 3vw, 34px);
  background: var(--panel);
}

.page-contact .partner-num {
  display: inline-block;
  margin-bottom: 14px;
  font-size: var(--fs-xs);
  letter-spacing: .14em;
  color: var(--gold);
}

.page-contact .partner-card h3 {
  margin: 0 0 12px;
  font-size: var(--fs-m);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: var(--fs-s);
  line-height: 1.8;
  color: var(--ink-dim);
}

.page-contact .partner-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: var(--fs-s);
  line-height: 1.75;
  color: var(--ink-dim);
}

/* ---------- 回复节奏 ---------- */

.page-contact .contact-rhythm {
  padding-block: var(--contact-gap);
  border-top: 1px solid var(--hairline-soft);
}

.page-contact .rhythm-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(22px, 3vw, 30px);
}

.page-contact .rhythm-step {
  padding-left: 20px;
  border-left: 2px solid rgba(245, 197, 66, .42);
}

.page-contact .rhythm-step:nth-child(2) {
  border-left-color: rgba(57, 210, 192, .42);
}

.page-contact .rhythm-step:nth-child(3) {
  border-left-color: rgba(255, 122, 69, .42);
}

.page-contact .rhythm-time {
  display: block;
  margin-bottom: 8px;
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 1.2;
  color: var(--gold);
}

.page-contact .rhythm-step:nth-child(2) .rhythm-time {
  color: var(--cyan);
}

.page-contact .rhythm-step:nth-child(3) .rhythm-time {
  color: var(--orange);
}

.page-contact .rhythm-name {
  margin: 0 0 8px;
  font-size: var(--fs-base);
}

.page-contact .rhythm-step p {
  margin: 0;
  font-size: var(--fs-s);
  line-height: 1.78;
  color: var(--ink-dim);
}

/* ---------- 底部导流 ---------- */

.page-contact .contact-return {
  padding-block: clamp(38px, 5vw, 64px) clamp(64px, 9vw, 120px);
  border-top: 1px solid var(--hairline-soft);
}

.page-contact .return-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 26px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(18, 51, 42, .92), rgba(8, 37, 28, .92));
}

.page-contact .return-line p {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fs-s);
  line-height: 1.78;
  color: var(--ink-dim);
}

.page-contact .return-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: clamp(20px, 2.6vw, 28px);
  font-size: var(--fs-xs);
}

.page-contact .return-links a {
  padding-bottom: 2px;
  color: var(--ink-dim);
  text-decoration: none;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--hairline);
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .return-links a:hover,
.page-contact .return-links a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 860px) {
  .page-contact .contact-lead-grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, .85fr);
    align-items: end;
  }

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

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

  .page-contact .rhythm-track {
    position: relative;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 3vw, 40px);
  }

  .page-contact .rhythm-track::before {
    content: "";
    position: absolute;
    top: 7px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gold), var(--cyan) 52%, var(--orange));
    opacity: .5;
  }

  .page-contact .rhythm-step {
    padding-left: 0;
    padding-top: 32px;
    border-left: 0;
  }

  .page-contact .rhythm-step::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 0 4px rgba(245, 197, 66, .16);
  }

  .page-contact .rhythm-step:nth-child(2)::before {
    background: var(--cyan);
    box-shadow: 0 0 0 4px rgba(57, 210, 192, .16);
  }

  .page-contact .rhythm-step:nth-child(3)::before {
    background: var(--orange);
    box-shadow: 0 0 0 4px rgba(255, 122, 69, .16);
  }
}

@media (min-width: 960px) {
  .page-contact .checklist-grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-contact .checklist-copy {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}