.page-contact {
  --paper-ink: #14141B;
  --paper-muted: #5d5d6b;
  background: var(--ink);
  color: var(--text);
  font-family: var(--f-sans);
  overflow-x: clip;
}

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

.page-contact h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--white);
  max-width: 26ch;
}

.page-contact h3 {
  margin: 0;
  font-size: clamp(17px, 1.6vw, 21px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--white);
}

.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: clamp(20px, 3vw, 30px);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text);
}

.page-contact .breadcrumb a {
  color: var(--text);
  text-decoration: none;
  transition: color .2s var(--ease);
}

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

.page-contact .breadcrumb-sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(22px, 3.5vw, 40px);
  padding-bottom: clamp(34px, 5vw, 64px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: 6%;
  right: -16%;
  width: min(640px, 60%);
  height: 320px;
  background: var(--red);
  transform: skewY(-6deg);
  opacity: .92;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-contact .contact-hero__copy h1 {
  margin: 0;
  font-size: clamp(30px, 4.6vw, 62px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.022em;
  color: var(--white);
  max-width: 20ch;
}

.page-contact .contact-hero__copy .lede {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .contact-hero__panel {
  position: relative;
  background: var(--iron);
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .contact-hero__panel .load-badge,
.page-contact .contact-lines .load-badge {
  position: relative;
  inset: auto;
  display: inline-block;
  margin: 0 0 18px;
}

.page-contact .panel-key {
  margin: 0 0 4px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-contact .hero-facts {
  margin: 0;
  display: grid;
}

.page-contact .hero-fact {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.page-contact .hero-fact:first-child {
  border-top: 0;
  padding-top: 6px;
}

.page-contact .hero-fact dt {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text);
}

.page-contact .hero-fact dd {
  margin: 0;
  font-family: var(--f-mono);
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--white);
  word-break: break-word;
}

.page-contact .hero-fact:first-child dd {
  color: var(--cyan);
  font-size: clamp(22px, 3vw, 30px);
}

.page-contact .hero-fact--mail {
  font-size: 13px;
  word-break: break-all;
}

.page-contact .contact-hero__media {
  position: relative;
  z-index: 1;
  margin: clamp(28px, 4.5vw, 52px) 0 0;
}

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

/* ---------- 四条通道带 ---------- */

.page-contact .contact-channels {
  padding: clamp(46px, 7vw, 88px) 0 0;
}

.page-contact .channel-list {
  list-style: none;
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel-band {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: clamp(22px, 3vw, 32px) clamp(18px, 2.4vw, 30px);
  border-bottom: 1px solid var(--line);
  transition: background-color .3s var(--ease), padding-inline-start .3s var(--ease);
}

.page-contact .channel-band::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--yellow);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform .3s var(--ease);
}

.page-contact .channel-band:hover,
.page-contact .channel-band:focus-within {
  background: var(--red);
  padding-inline-start: clamp(24px, 3.4vw, 42px);
}

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

.page-contact .channel-band:hover .channel-body p,
.page-contact .channel-band:focus-within .channel-body p {
  color: var(--white);
}

.page-contact .channel-band:hover .channel-num,
.page-contact .channel-band:focus-within .channel-num {
  color: var(--yellow);
}

.page-contact .channel-band:hover .channel-link,
.page-contact .channel-band:focus-within .channel-link {
  color: var(--white);
}

.page-contact .channel-num {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--red-bright);
  transition: color .3s var(--ease);
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 10px;
}

.page-contact .channel-body p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text);
  max-width: 74ch;
  transition: color .3s var(--ease);
}

.page-contact .channel-detail {
  font-size: 14px;
  line-height: 1.72;
}

.page-contact .channel-link {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--f-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--cyan);
  text-decoration: none;
  transition: color .25s var(--ease);
}

/* ---------- 工单 ---------- */

.page-contact .contact-ticket {
  padding: clamp(46px, 7vw, 88px) 0 0;
}

.page-contact .ticket-grid {
  display: grid;
  gap: clamp(26px, 3.5vw, 44px);
  border-top: 1px solid var(--line);
  padding-top: clamp(28px, 4vw, 48px);
}

.page-contact .ticket-main p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
  max-width: 68ch;
}

.page-contact .ticket-checklist {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ticket-checklist li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .ticket-checklist .mono {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--red-bright);
}

.page-contact .ticket-aside {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--iron);
  border: 1px solid var(--line);
  padding: clamp(22px, 3vw, 30px);
}

.page-contact .ticket-aside .load-badge {
  position: relative;
  inset: auto;
  display: inline-block;
  align-self: flex-start;
  margin: 0 0 14px;
}

.page-contact .ticket-badge {
  margin: 0;
  font-family: var(--f-mono);
  font-size: clamp(44px, 6vw, 68px);
  font-weight: 700;
  line-height: .94;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-contact .ticket-badge small {
  font-size: .34em;
  letter-spacing: .08em;
  margin-left: .18em;
  color: var(--text);
}

.page-contact .ticket-aside-label {
  margin: 0;
  font-size: 13px;
  color: var(--text);
}

.page-contact .ticket-aside-note {
  margin: 10px 0 20px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .ticket-aside .btn {
  align-self: flex-start;
}

/* ---------- 专线与邮箱 ---------- */

.page-contact .contact-lines {
  padding: clamp(46px, 7vw, 88px) 0 0;
}

.page-contact .line-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 3.5vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .line-card {
  display: grid;
  align-content: start;
  gap: 8px;
  background: var(--ink);
  padding: clamp(22px, 3vw, 34px);
  transition: background-color .3s var(--ease);
}

.page-contact .line-card:hover {
  background: var(--iron);
}

.page-contact .line-card-top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .line-mark {
  width: 10px;
  height: 10px;
  flex: none;
  background: var(--red);
}

.page-contact .line-card:nth-child(2) .line-mark {
  background: var(--cyan);
}

.page-contact .line-value {
  margin: 6px 0 0;
  font-family: var(--f-mono);
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: .01em;
  color: var(--white);
  word-break: break-word;
}

.page-contact .line-value--mail {
  font-size: clamp(15px, 1.5vw, 19px);
  word-break: break-all;
}

.page-contact .line-window {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--yellow);
}

.page-contact .line-card p:last-of-type {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text);
}

/* ---------- 商务合作 ---------- */

.page-contact .contact-partner {
  padding: clamp(46px, 7vw, 88px) 0 0;
}

.page-contact .partner-grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(24px, 3.5vw, 40px);
}

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

.page-contact .partner-step {
  position: relative;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: clamp(22px, 3vw, 32px);
}

.page-contact .partner-step:last-child {
  padding-bottom: 0;
}

.page-contact .partner-step::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 34px;
  bottom: 6px;
  width: 1px;
  background: var(--line);
}

.page-contact .partner-step:last-child::before {
  display: none;
}

.page-contact .step-num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  background: var(--ink);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--red-bright);
  transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .partner-step:hover .step-num {
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}

.page-contact .partner-step h3 {
  margin-bottom: 6px;
}

.page-contact .partner-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text);
  max-width: 62ch;
}

.page-contact .partner-figure {
  margin: 0;
  overflow: hidden;
}

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

/* ---------- 办公地址 ---------- */

.page-contact .contact-office {
  padding: clamp(46px, 7vw, 88px) 0 0;
  scroll-margin-top: 96px;
}

.page-contact .office-grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 48px);
  border-top: 1px solid var(--line);
  padding-top: clamp(28px, 4vw, 48px);
}

.page-contact .office-copy p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
  max-width: 56ch;
}

.page-contact .office-pin {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-top: 22px;
  border: 1px solid var(--line);
  color: var(--cyan);
}

.page-contact .office-card {
  background: var(--paper);
  color: var(--paper-ink);
  padding: clamp(22px, 3vw, 34px);
}

.page-contact .office-list {
  margin: 0;
  display: grid;
}

.page-contact .office-row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(20, 20, 27, .14);
}

.page-contact .office-row:first-child {
  padding-top: 0;
}

.page-contact .office-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .office-row dt {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--paper-muted);
}

.page-contact .office-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.68;
  color: var(--paper-ink);
}

.page-contact .office-mono {
  font-family: var(--f-mono);
  word-break: break-all;
}

.page-contact .office-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(20, 20, 27, .14);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--paper-muted);
}

/* ---------- 自助入口 ---------- */

.page-contact .contact-self {
  padding: clamp(46px, 7vw, 88px) 0 clamp(52px, 8vw, 96px);
}

.page-contact .self-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 3.5vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .self-card {
  position: relative;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: clamp(22px, 3vw, 32px);
  background: var(--ink);
  color: inherit;
  text-decoration: none;
  transition: background-color .3s var(--ease);
}

.page-contact .self-card:hover {
  background: var(--iron);
}

.page-contact .self-key {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--red-bright);
}

.page-contact .self-card h3 {
  font-size: 17px;
}

.page-contact .self-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--text);
}

.page-contact .self-go {
  margin-top: 4px;
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  transition: transform .3s var(--ease);
}

.page-contact .self-card:hover .self-go {
  transform: translateX(6px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 768px) {
  .page-contact .channel-band {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 6px 24px;
    align-items: start;
  }

  .page-contact .channel-num {
    padding-top: 5px;
  }

  .page-contact .line-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .ticket-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(250px, .6fr);
    gap: clamp(32px, 4.5vw, 64px);
  }

  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }

  .page-contact .office-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (max-width: 600px) {
  .page-contact .contact-hero::before {
    width: 74%;
    right: -24%;
    height: 220px;
    opacity: .8;
  }

  .page-contact .hero-fact dd,
  .page-contact .line-value,
  .page-contact .office-mono {
    word-break: break-all;
  }
}