.page-contact {
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 64px;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1120px, 140%);
  height: 560px;
  background:
    radial-gradient(520px 300px at 76% 34%, rgba(0, 230, 118, .16), transparent 70%),
    radial-gradient(460px 300px at 18% 58%, rgba(255, 107, 26, .13), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

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

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 8vw, 4.25rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-contact .contact-lead {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .channels-title {
  margin: 46px 0 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .8125rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

/* ---------- 渠道卡 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 18px;
}

.page-contact .channel-card {
  position: relative;
  overflow: hidden;
  padding: 26px 22px 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--console);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--track);
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 230, 118, .18), transparent 70%);
  pointer-events: none;
}

.page-contact .channel-card--phone::before {
  background: var(--ember);
}

.page-contact .channel-card--phone::after {
  background: radial-gradient(circle, rgba(255, 107, 26, .2), transparent 70%);
}

.page-contact .channel-tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .channel-title {
  margin: 10px 0 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .channel-address {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1rem, 4.4vw, 1.3rem);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--track);
  word-break: break-all;
}

.page-contact .channel-card--phone .channel-address {
  font-size: clamp(1.6rem, 7.5vw, 2.2rem);
  letter-spacing: .02em;
  color: var(--ember);
}

.page-contact .channel-desc {
  margin: 16px 0 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .channel-uses {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
}

.page-contact .channel-uses li {
  position: relative;
  padding-left: 18px;
  font-size: .875rem;
  color: var(--mist);
}

.page-contact .channel-uses li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 8px;
  height: 2px;
  background: var(--track);
}

.page-contact .channel-card--phone .channel-uses li::before {
  background: var(--ember);
}

/* ---------- 工作时间 ---------- */
.page-contact .hours-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.page-contact .hours-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 5.6vw, 2.375rem);
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--white);
  max-width: 22ch;
}

.page-contact .hours-text {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .hours-list {
  display: grid;
  gap: 2px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .hours-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  font-size: .9375rem;
  line-height: 1.6;
  color: var(--silver);
}

.page-contact .hours-list .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--track);
  letter-spacing: .01em;
}

.page-contact .hours-media {
  margin: 0;
}

/* ---------- 纠错三步 ---------- */
.page-contact .fix-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .fix-step {
  position: relative;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 38, 63, .95), rgba(10, 26, 47, .95));
}

.page-contact .fix-step::after {
  content: "";
  position: absolute;
  top: 0;
  right: 20px;
  width: 44px;
  height: 2px;
  background: linear-gradient(90deg, var(--track), var(--ember));
}

.page-contact .fix-index {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: .02em;
  color: var(--ember);
}

.page-contact .fix-step h3 {
  margin: 12px 0 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .fix-step p {
  margin: 10px 0 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .shot-placeholder {
  position: relative;
  height: 76px;
  margin-top: 16px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background-image:
    linear-gradient(rgba(199, 208, 217, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(199, 208, 217, .07) 1px, transparent 1px);
  background-size: 20px 20px;
}

.page-contact .shot-placeholder span {
  position: absolute;
  left: 10px;
  bottom: 8px;
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .fix-note {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--track);
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 下载与账号 ---------- */
.page-contact .tabs {
  margin-top: 32px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-contact .tabpanel {
  padding-top: 22px;
}

.page-contact .tabpanel h3 {
  margin: 0 0 14px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
}

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

.page-contact .tabpanel li {
  position: relative;
  padding-left: 20px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .tabpanel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 2px;
  background: var(--ember);
}

.page-contact .tabpanel p {
  margin: 16px 0 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .help-bridge {
  margin: 30px 0 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .help-bridge a {
  color: var(--track);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 合作与投稿 ---------- */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .partner-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 5.6vw, 2.375rem);
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-contact .partner-copy p {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .partner-copy a {
  color: var(--track);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .partner-stats {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .partner-stats .stat {
  display: grid;
  gap: 6px;
  padding: 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--track);
  border-radius: var(--radius);
  background: var(--console);
}

.page-contact .partner-stats .stat:last-child {
  border-left-color: var(--mist);
}

/* ---------- 办公地址 ---------- */
.page-contact .address-board {
  position: relative;
  overflow: hidden;
  min-height: 268px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .address-board-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
}

.page-contact .address-board::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(5, 13, 24, .95) 0%, rgba(10, 26, 47, .84) 54%, rgba(10, 26, 47, .46) 100%);
  pointer-events: none;
}

.page-contact .address-board-body {
  position: relative;
  z-index: 1;
  max-width: 620px;
  padding: 34px 24px;
}

.page-contact .address-title {
  margin: 14px 0 0;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-contact .address-text {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.25rem, 5.4vw, 1.875rem);
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .address-desc {
  margin: 18px 0 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .address-icp {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .hours-list li {
    grid-template-columns: 8.5em 1fr;
    gap: 14px;
    align-items: baseline;
  }

  .page-contact .address-board-body {
    padding: 44px 40px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 36px 0 88px;
  }

  .page-contact .channel-grid {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }

  .page-contact .channel-card {
    padding: 30px 28px 26px 32px;
  }

  .page-contact .hours-grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 48px;
  }

  .page-contact .fix-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-contact .partner-grid {
    grid-template-columns: 1.3fr .85fr;
    gap: 48px;
  }
}