.page-contact {
  --contact-pad: clamp(30px, 6vw, 76px);
  --contact-paper-line: #C7D2D0;
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  padding-block: 14px 0;
  background: var(--ink);
}

.page-contact .breadcrumb-link {
  color: var(--muted);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-bottom: clamp(34px, 5vw, 64px);
  background:
    radial-gradient(110% 80% at 8% 0%, rgba(47, 243, 208, 0.16), transparent 58%),
    linear-gradient(158deg, var(--ink) 0%, var(--deep) 60%, var(--slate) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 9px;
  background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 30px);
  pointer-events: none;
}

.page-contact .contact-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  padding-top: clamp(20px, 3vw, 40px);
}

.page-contact .contact-hero-copy > .tag {
  display: inline-block;
  margin-bottom: 18px;
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-contact .contact-lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .contact-hero-board {
  display: grid;
  gap: 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: linear-gradient(150deg, rgba(11, 27, 51, 0.92), rgba(5, 10, 20, 0.78));
  box-shadow: 0 24px 40px -34px rgba(0, 0, 0, 0.9);
}

.page-contact .board-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-block: 12px;
  border-bottom: 1px dashed rgba(38, 54, 77, 0.9);
}

.page-contact .board-row:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.page-contact .board-num {
  flex: 0 0 auto;
  min-width: 62px;
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-contact .board-label {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 区块标题 ---------- */
.page-contact .contact-section-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-contact .contact-section-head .tag {
  display: inline-block;
  margin-bottom: 14px;
}

.page-contact .contact-section-head h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-contact .contact-section-head--dark h2 {
  color: var(--paper);
}

.page-contact .contact-section-lede {
  margin: 16px 0 0;
  font-size: clamp(15.5px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .contact-section-head--dark .contact-section-lede {
  color: var(--muted);
}

/* ---------- 联系通道信息牌 ---------- */
.page-contact .contact-channels {
  padding-block: var(--contact-pad);
  background: var(--paper);
  color: var(--ink);
}

.page-contact .contact-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .ticket {
  position: relative;
  padding: 20px 20px 20px 24px;
  background: linear-gradient(180deg, #FFFFFF 0%, #EBF1EF 100%);
  border: 1px solid var(--contact-paper-line);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(5, 10, 20, 0.05), 0 16px 30px -24px rgba(5, 10, 20, 0.7);
}

.page-contact .ticket::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: var(--cyan-deep);
}

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

.page-contact .ticket--addr::before {
  background: var(--slate);
}

.page-contact .ticket-head {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--slate);
}

.page-contact .ticket-icon {
  flex: 0 0 auto;
}

.page-contact .ticket-label {
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.page-contact .ticket-value {
  margin: 14px 0 0;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(16px, 2.2vw, 21px);
  line-height: 1.35;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .ticket-value--addr {
  font-family: var(--font-sans);
  font-size: clamp(16px, 2vw, 19px);
  letter-spacing: 0;
}

.page-contact .ticket-note {
  margin: 12px 0 16px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-contact .ticket-facts {
  display: grid;
  gap: 0;
  margin: 14px 0 6px;
  padding: 0;
}

.page-contact .ticket-fact {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding-block: 8px;
  border-top: 1px dashed var(--contact-paper-line);
}

.page-contact .ticket-fact dt {
  flex: 0 0 66px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  padding-top: 3px;
}

.page-contact .ticket-fact dd {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel-media {
  margin: 0;
  background: var(--slate);
  border: 1px solid var(--line);
}

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

.page-contact .contact-channel-media img {
  aspect-ratio: 3 / 2;
}

.page-contact .contact-channel-media .media-caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 适用事项 ---------- */
.page-contact .contact-duties {
  padding-block: var(--contact-pad);
  background:
    radial-gradient(90% 60% at 100% 0%, rgba(19, 41, 75, 0.9), transparent 62%),
    linear-gradient(180deg, var(--deep), var(--ink));
  border-block: 1px solid var(--line);
}

.page-contact .contact-duties-list {
  border-top: 1px solid rgba(38, 54, 77, 0.9);
}

.page-contact .duty {
  border-bottom: 1px solid rgba(38, 54, 77, 0.9);
  padding-block: 4px;
}

.page-contact .duty summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: clamp(15.5px, 1.7vw, 18px);
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .duty summary::-webkit-details-marker {
  display: none;
}

.page-contact .duty summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .duty[open] summary::after {
  content: "–";
}

.page-contact .duty[open] summary {
  color: var(--cyan);
}

.page-contact .duty-body {
  padding: 0 0 18px;
  max-width: 74ch;
}

.page-contact .duty-body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .duty-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 4px 0 0;
  padding: 6px 12px;
  font-size: 13px;
  color: var(--paper);
  border: 1px solid var(--line);
  background: rgba(19, 41, 75, 0.6);
  border-radius: var(--radius);
}

.page-contact .duty-meta .mono {
  color: var(--cyan);
  font-size: 11.5px;
  letter-spacing: 0.14em;
}

/* ---------- 工单通道 ---------- */
.page-contact .contact-ticket {
  padding-block: var(--contact-pad);
  background: var(--paper);
  color: var(--ink);
}

.page-contact .contact-ticket-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .contact-ticket-main h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-contact .contact-ticket-main > .tag {
  display: inline-block;
  margin-bottom: 14px;
}

.page-contact .ticket-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .ticket-step {
  position: relative;
  padding: 0 0 22px 30px;
  border-left: 1px solid var(--contact-paper-line);
}

.page-contact .ticket-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .ticket-step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--paper);
  border: 2px solid var(--cyan-deep);
  border-radius: 50%;
}

.page-contact .step-num {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan-deep);
}

.page-contact .ticket-step h3 {
  margin: 6px 0 8px;
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 800;
  color: var(--ink);
}

.page-contact .ticket-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .ticket-step a {
  color: var(--cyan-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-ticket-aside {
  padding: 22px 20px;
  background: linear-gradient(160deg, var(--deep), var(--ink));
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
  color: var(--paper);
  box-shadow: 0 26px 44px -38px rgba(5, 10, 20, 0.95);
}

.page-contact .aside-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--paper);
}

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

.page-contact .aside-list li {
  padding-block: 10px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--muted);
  border-top: 1px dashed rgba(38, 54, 77, 0.95);
}

.page-contact .aside-list li:first-child {
  border-top: 0;
}

.page-contact .aside-key {
  display: inline-block;
  min-width: 46px;
  margin-right: 8px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .aside-foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--warn);
}

/* ---------- 合作与媒体 ---------- */
.page-contact .contact-partners {
  padding-block: var(--contact-pad);
  background:
    radial-gradient(80% 70% at 0% 100%, rgba(47, 243, 208, 0.1), transparent 60%),
    var(--slate);
  border-block: 1px solid var(--line);
}

.page-contact .partner-list {
  border-top: 1px solid rgba(38, 54, 77, 0.95);
}

.page-contact .partner-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding-block: 22px;
  border-bottom: 1px solid rgba(38, 54, 77, 0.95);
}

.page-contact .partner-key {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-contact .partner-num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .partner-key h3 {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .partner-row p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-flow {
  padding-block: var(--contact-pad);
  background: var(--paper);
  color: var(--ink);
}

.page-contact .flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--contact-paper-line);
}

.page-contact .flow-step {
  position: relative;
  padding: 20px 0 20px 0;
  border-bottom: 1px solid var(--contact-paper-line);
}

.page-contact .flow-num {
  display: inline-block;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: rgba(47, 243, 208, 0.28);
  border-radius: var(--radius);
}

.page-contact .flow-step h3 {
  margin: 12px 0 8px;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
  color: var(--ink);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-contact .contact-flow-media {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  background: var(--slate);
  border: 1px solid var(--line);
}

.page-contact .contact-flow-media img {
  aspect-ratio: 5 / 3;
}

.page-contact .contact-flow-media .media-caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 先看答案 ---------- */
.page-contact .contact-answers {
  padding-block: var(--contact-pad);
  background:
    radial-gradient(100% 70% at 90% 0%, rgba(47, 243, 208, 0.12), transparent 58%),
    linear-gradient(180deg, var(--ink), var(--deep));
  border-top: 1px solid var(--line);
}

.page-contact .answer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .answer-card {
  display: block;
  padding: 20px 18px;
  text-decoration: none;
  color: var(--paper);
  background: rgba(19, 41, 75, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .answer-card:hover,
.page-contact .answer-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan);
  background: rgba(19, 41, 75, 0.85);
}

.page-contact .answer-tag {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .answer-card h3 {
  margin: 10px 0 8px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.42;
  color: var(--paper);
}

.page-contact .answer-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .answers-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .answers-foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 桌面与平板 ---------- */
@media (min-width: 720px) {
  .page-contact .answer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .partner-row {
    grid-template-columns: minmax(150px, 210px) minmax(0, 1fr);
    gap: clamp(18px, 3vw, 40px);
    align-items: start;
  }

  .page-contact .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 36px);
  }
}

@media (min-width: 880px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.7fr);
    align-items: end;
  }

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

  .page-contact .contact-channel-media {
    grid-column: 1 / -1;
    order: 3;
  }

  .page-contact .ticket--addr {
    grid-column: 1 / -1;
  }

  .page-contact .ticket--addr .ticket-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 24px;
  }

  .page-contact .ticket--addr .ticket-fact {
    border-top: 1px dashed var(--contact-paper-line);
  }

  .page-contact .contact-ticket-inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
  }

  .page-contact .flow-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: clamp(16px, 2.2vw, 28px);
  }

  .page-contact .flow-step {
    padding-right: 12px;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-channel-media {
    grid-column: 1 / 3;
    grid-row: 1;
    order: 0;
  }

  .page-contact .contact-channel-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-contact .ticket--mail,
  .page-contact .ticket--phone {
    grid-column: 2;
  }

  .page-contact .ticket--addr {
    grid-column: 1 / -1;
  }

  .page-contact .contact-channel-media img {
    aspect-ratio: 4 / 3;
    height: 100%;
    object-fit: cover;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .answer-card {
    transition: none;
  }

  .page-contact .answer-card:hover,
  .page-contact .answer-card:focus-visible {
    transform: none;
  }
}