.page-contact {
  --c-cut: 14px;
  --c-cut-lg: 26px;
  --c-line: rgba(30, 61, 50, 0.9);
  --c-surface: rgba(16, 32, 26, 0.86);
  --c-surface-2: rgba(13, 27, 21, 0.92);
}

/* ---------- 顶部横幅 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: 340px;
  padding: 40px 0 44px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-contact .contact-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(10, 20, 16, 0.55) 0%, rgba(10, 20, 16, 0.88) 58%, var(--ink) 100%),
    linear-gradient(104deg, rgba(200, 255, 61, 0.09) 0%, rgba(200, 255, 61, 0) 46%);
}

.page-contact .contact-hero-inner {
  width: 100%;
}

.page-contact .contact-hero .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .contact-hero .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .contact-hero .crumbs a:hover,
.page-contact .contact-hero .crumbs a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .contact-hero h1 {
  margin: 20px 0 18px;
  font-family: var(--font-head);
  font-size: clamp(38px, 9vw, 66px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-contact .contact-lead {
  max-width: 640px;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 通用区块 ---------- */
.page-contact .contact-section {
  padding: 52px 0;
}

.page-contact .contact-board-section {
  padding-top: 48px;
}

.page-contact .section-head {
  max-width: 700px;
  margin-bottom: 28px;
}

.page-contact .section-title {
  margin: 10px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(25px, 5.4vw, 40px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--text);
}

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

.page-contact .section-note a,
.page-contact .side-link a,
.page-contact .channel-item a,
.page-contact .flow-aside-body a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.4);
  transition: border-color var(--ease), color var(--ease);
}

.page-contact .section-note a:hover,
.page-contact .side-link a:hover,
.page-contact .channel-item a:hover,
.page-contact .flow-aside-body a:hover,
.page-contact .section-note a:focus-visible,
.page-contact .side-link a:focus-visible,
.page-contact .channel-item a:focus-visible,
.page-contact .flow-aside-body a:focus-visible {
  border-bottom-color: var(--signal);
  color: var(--signal);
}

/* ---------- 联系方式比分牌 ---------- */
.page-contact .contact-board {
  position: relative;
  padding: 30px 20px 28px;
  background: linear-gradient(152deg, #142a22 0%, #10201a 52%, #0c1914 100%);
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    calc(100% - var(--c-cut-lg)) 0,
    100% var(--c-cut-lg),
    100% 100%,
    var(--c-cut-lg) 100%,
    0 calc(100% - var(--c-cut-lg))
  );
}

.page-contact .contact-board::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 30px;
  height: 2px;
  background: linear-gradient(90deg, var(--signal), rgba(200, 255, 61, 0) 72%);
}

.page-contact .board-title {
  margin: 10px 0 22px;
  font-family: var(--font-head);
  font-size: clamp(23px, 4.6vw, 33px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .board-rows {
  margin: 0;
  display: grid;
}

.page-contact .board-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--c-line);
}

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

.page-contact .board-row dt {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .board-row dd {
  margin: 0;
}

.page-contact .board-value {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(16px, 3.8vw, 25px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--text);
  word-break: break-word;
}

.page-contact .board-value--signal {
  color: var(--signal);
}

.page-contact .board-value--plain {
  font-size: clamp(14px, 3.1vw, 19px);
  font-weight: 500;
  color: var(--text);
}

.page-contact .board-note {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--c-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 数据反馈 ---------- */
.page-contact .report-grid {
  display: grid;
  gap: 24px;
}

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

.page-contact .check-list li {
  position: relative;
  padding: 15px 16px 15px 48px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  clip-path: polygon(
    0 0,
    calc(100% - 12px) 0,
    100% 12px,
    100% 100%,
    0 100%
  );
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  transition: border-color var(--ease), transform var(--ease);
}

.page-contact .check-list li:hover {
  border-color: rgba(200, 255, 61, 0.42);
  transform: translateY(-2px);
}

.page-contact .check-list li::before {
  content: "✓";
  position: absolute;
  left: 16px;
  top: 17px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
  background: var(--signal);
}

.page-contact .report-side {
  padding: 22px 20px 24px;
  background: rgba(16, 32, 26, 0.62);
  border: 1px solid var(--line);
  border-left: 3px solid var(--ember);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 16px),
    calc(100% - 16px) 100%,
    0 100%
  );
}

.page-contact .report-side h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}

.page-contact .side-steps {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
  counter-reset: side;
}

.page-contact .side-steps li {
  position: relative;
  padding-left: 32px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .side-steps li::before {
  counter-increment: side;
  content: counter(side, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--ember);
}

.page-contact .side-link {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 合作来意矩阵 ---------- */
.page-contact .intent-grid {
  display: grid;
  gap: 14px;
}

.page-contact .intent {
  background: var(--c-surface);
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    calc(100% - 16px) 0,
    100% 16px,
    100% 100%,
    0 100%
  );
  transition: border-color var(--ease), transform var(--ease);
}

.page-contact .intent:hover {
  border-color: rgba(200, 255, 61, 0.4);
  transform: translateY(-2px);
}

.page-contact .intent[open] {
  border-color: rgba(200, 255, 61, 0.55);
}

.page-contact .intent summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 19px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  transition: color var(--ease);
}

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

.page-contact .intent summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--signal);
}

.page-contact .intent[open] summary::after {
  content: "−";
}

.page-contact .intent summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -3px;
}

.page-contact .intent-index {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .intent-body {
  padding: 16px 20px 22px;
  border-top: 1px solid var(--c-line);
}

.page-contact .intent-body p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .intent-body ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .intent-body li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .intent-body li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.66em;
  width: 6px;
  height: 6px;
  background: var(--signal);
  transform: rotate(45deg);
}

/* ---------- 渠道合作 ---------- */
.page-contact .channel-panel {
  padding: 30px 20px 32px;
  background: linear-gradient(140deg, rgba(18, 37, 29, 0.96), rgba(12, 25, 19, 0.96));
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 24px),
    calc(100% - 24px) 100%,
    0 100%
  );
}

.page-contact .channel-panel .section-head {
  margin-bottom: 20px;
}

.page-contact .channel-grid {
  display: grid;
  gap: 20px;
}

.page-contact .channel-item + .channel-item {
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
}

.page-contact .channel-item h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}

.page-contact .channel-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 处理节奏 + 上海运营 ---------- */
.page-contact .flow-grid {
  display: grid;
  gap: 30px;
}

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

.page-contact .flow-steps li {
  position: relative;
  padding: 0 0 26px 62px;
}

.page-contact .flow-steps li:last-child {
  padding-bottom: 0;
}

.page-contact .flow-steps li::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 46px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--green-2), rgba(36, 80, 67, 0));
}

.page-contact .flow-steps li:last-child::before {
  display: none;
}

.page-contact .flow-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--signal);
  background: rgba(16, 32, 26, 0.96);
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    calc(100% - 9px) 0,
    100% 9px,
    100% 100%,
    0 100%
  );
}

.page-contact .flow-steps h3 {
  margin: 6px 0 8px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}

.page-contact .flow-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .flow-aside {
  overflow: hidden;
  background: rgba(16, 32, 26, 0.74);
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 20px),
    calc(100% - 20px) 100%,
    0 100%
  );
}

.page-contact .flow-aside figure {
  margin: 0;
  position: relative;
}

.page-contact .flow-aside figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 20, 16, 0.05) 0%, rgba(12, 25, 19, 0.85) 100%);
}

.page-contact .flow-aside img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: 0.85;
}

.page-contact .flow-aside-body {
  padding: 22px 20px 26px;
}

.page-contact .flow-aside-body h3 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
}

.page-contact .flow-aside-body p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .flow-aside-body p:last-child {
  margin-bottom: 0;
}

/* ---------- 交互焦点 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    min-height: 400px;
    padding: 56px 0 56px;
  }

  .page-contact .contact-board {
    padding: 38px 34px 34px;
  }

  .page-contact .board-row {
    grid-template-columns: 128px 1fr;
    align-items: baseline;
    gap: 22px;
    padding: 18px 0;
  }

  .page-contact .board-row dt {
    padding-top: 4px;
  }

  .page-contact .contact-section {
    padding: 62px 0;
  }

  .page-contact .channel-panel {
    padding: 40px 34px 42px;
  }
}

@media (min-width: 900px) {
  .page-contact .report-grid {
    grid-template-columns: 1.28fr 0.72fr;
    gap: 32px;
    align-items: start;
  }

  .page-contact .intent-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

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

  .page-contact .channel-item {
    padding: 0 26px;
  }

  .page-contact .channel-item:first-child {
    padding-left: 0;
  }

  .page-contact .channel-item:last-child {
    padding-right: 0;
  }

  .page-contact .channel-item + .channel-item {
    padding-top: 0;
    border-top: 0;
    border-left: 1px solid var(--c-line);
  }
}

@media (min-width: 980px) {
  .page-contact .flow-grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 44px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .check-list li,
  .page-contact .intent,
  .page-contact .contact-hero .crumbs a {
    transition: none;
  }

  .page-contact .check-list li:hover,
  .page-contact .intent:hover {
    transform: none;
  }
}