.page-contact {
  --pc-gap: clamp(20px, 3vw, 36px);
  --pc-band: clamp(40px, 6vw, 88px);
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-top: clamp(16px, 3vw, 28px);
  padding-bottom: clamp(8px, 2vw, 14px);
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-contact .breadcrumb-list li {
  display: flex;
  align-items: center;
  color: var(--silver);
}

.page-contact .breadcrumb-list li + li::before {
  content: "/";
  margin: 0 8px 0 2px;
  color: rgba(159, 176, 172, 0.5);
}

.page-contact .breadcrumb-list a {
  color: var(--silver);
  text-decoration: none;
}

.page-contact .breadcrumb-list a:hover,
.page-contact .breadcrumb-list a:focus-visible {
  color: var(--neon);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding: clamp(24px, 4vw, 56px) 0 clamp(40px, 7vw, 92px);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: min(660px, 72vw);
  height: min(660px, 72vw);
  background: radial-gradient(circle at 55% 45%, rgba(41, 242, 200, 0.15), transparent 62%);
  pointer-events: none;
}

.page-contact .pc-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}

.page-contact .pc-hero-copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-sans);
  font-size: clamp(31px, 5.6vw, 62px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .pc-hero-copy .lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 联系面板 ---------- */
.page-contact .pc-contact-panel {
  position: relative;
  padding: clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(155deg, rgba(18, 70, 58, 0.92) 0%, rgba(11, 15, 14, 0.97) 64%);
  box-shadow: 0 34px 90px -60px rgba(41, 242, 200, 0.6);
  overflow: hidden;
}

.page-contact .pc-contact-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 42%;
  background: linear-gradient(180deg, var(--neon), rgba(41, 242, 200, 0));
}

.page-contact .pc-channel + .pc-channel {
  margin-top: clamp(18px, 2.4vw, 26px);
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid var(--line);
}

.page-contact .pc-channel-label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.5;
  color: var(--silver);
}

.page-contact .pc-mail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 3vw, 30px);
  font-weight: 500;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--neon);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .pc-phone {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.3;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}

.page-contact .pc-addr {
  margin: 0;
  font-style: normal;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 反馈类型 ---------- */
.page-contact .pc-types {
  padding: var(--pc-band) 0;
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(14, 42, 34, 0.9), rgba(11, 15, 14, 0) 62%),
    var(--ink);
}

.page-contact .pc-section-head {
  max-width: 64ch;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .pc-section-head .section-title {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.2vw, 38px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .pc-section-lede {
  margin: 12px 0 0;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.72;
  color: var(--silver);
}

.page-contact .pc-type-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .pc-type {
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-type summary {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 6px 14px;
  align-items: center;
  padding: clamp(16px, 2.4vw, 24px) 0;
  cursor: pointer;
  list-style: none;
  color: var(--white);
}

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

.page-contact .pc-type summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 4px;
  border-radius: 4px;
}

.page-contact .pc-type-mark {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--board);
  box-shadow: inset 0 0 0 1px rgba(41, 242, 200, 0.34);
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-contact .pc-type[open] .pc-type-mark {
  background: var(--neon);
  transform: rotate(45deg);
}

.page-contact .pc-type-name {
  font-size: clamp(16px, 1.9vw, 20px);
  font-weight: 500;
  line-height: 1.35;
}

.page-contact .pc-type-hint {
  grid-column: 2;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  line-height: 1.5;
  color: var(--silver);
}

.page-contact .pc-type-body {
  display: grid;
  gap: 10px;
  padding: 0 0 clamp(18px, 2.6vw, 26px);
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .pc-type-body p {
  margin: 0;
  max-width: 78ch;
}

.page-contact .pc-type-body a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 242, 200, 0.4);
}

.page-contact .pc-type-body a:hover,
.page-contact .pc-type-body a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---------- 提交信息 ---------- */
.page-contact .pc-submit {
  padding: var(--pc-band) 0;
}

.page-contact .pc-submit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}

.page-contact .pc-submit-lede {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 60ch;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.75;
  color: var(--sliver, var(--silver));
}

.page-contact .pc-checklist {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .pc-checklist li {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .pc-tick {
  width: 12px;
  height: 12px;
  margin-top: 6px;
  border-radius: 2px;
  background: var(--orange);
  opacity: 0.85;
}

.page-contact .pc-submit-note {
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--r-m);
  border-left: 3px solid var(--amber);
}

.page-contact .pc-submit-note p {
  margin: 0;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-submit-note p + p {
  margin-top: 12px;
  color: var(--silver);
}

.page-contact .pc-submit-note .panel-title {
  margin: 0 0 12px;
  color: var(--white);
}

/* ---------- 处理流程 ---------- */
.page-contact .pc-flow {
  padding: var(--pc-band) 0;
  background: linear-gradient(180deg, rgba(14, 42, 34, 0.7), rgba(11, 15, 14, 0) 76%);
}

.page-contact .pc-flow-figure {
  margin: 0 0 clamp(28px, 4vw, 54px);
  border-radius: var(--r-l);
  overflow: hidden;
}

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

.page-contact .pc-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(20px, 3vw, 28px);
}

.page-contact .pc-step {
  position: relative;
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.page-contact .pc-step::before {
  content: "";
  position: absolute;
  top: 7px;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 194, 75, 0.14);
}

.page-contact .pc-step-index {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .pc-step-title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--white);
}

.page-contact .pc-step p {
  margin: 0;
  font-size: clamp(14px, 1.5vw, 15.5px);
  line-height: 1.72;
  color: var(--silver);
}

.page-contact .pc-step a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 242, 200, 0.4);
}

.page-contact .pc-step a:hover,
.page-contact .pc-step a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---------- 合作与授权 ---------- */
.page-contact .pc-partner {
  padding: var(--pc-band) 0;
}

.page-contact .pc-partner-inner {
  padding: clamp(24px, 4vw, 58px);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(122deg, rgba(18, 70, 58, 0.88), rgba(11, 15, 14, 0.72) 72%);
}

.page-contact .pc-partner-inner .section-title {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.2vw, 38px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .pc-partner-lede {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 66ch;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .pc-partner-list {
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .pc-partner-list li {
  position: relative;
  padding-left: 22px;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .pc-partner-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 11px;
  height: 2px;
  background: var(--neon);
}

.page-contact .pc-partner-foot {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 66ch;
  font-size: clamp(13px, 1.4vw, 15px);
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .pc-partner-foot a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 242, 200, 0.4);
}

.page-contact .pc-partner-foot a:hover,
.page-contact .pc-partner-foot a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---------- 服务范围 ---------- */
.page-contact .pc-scope {
  padding: var(--pc-band) 0;
}

.page-contact .pc-scope-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}

.page-contact .pc-scope-copy .section-title {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.2vw, 38px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .pc-scope-copy > p {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 60ch;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-scope-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 22px);
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-contact .pc-scope-stats > div {
  padding-top: 14px;
  border-top: 2px solid rgba(76, 211, 255, 0.42);
}

.page-contact .pc-scope-stats dt {
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--silver);
}

.page-contact .pc-scope-stats dd {
  margin: 0;
}

.page-contact .pc-scope-figure {
  margin: 0;
  border-radius: var(--r-l);
  overflow: hidden;
}

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

/* ---------- 斜向收束 ---------- */
.page-contact .pc-closing {
  position: relative;
  margin-top: clamp(16px, 3vw, 36px);
  padding: clamp(48px, 7vw, 96px) 0 clamp(56px, 8vw, 112px);
  overflow: hidden;
}

.page-contact .pc-closing::before {
  content: "";
  position: absolute;
  top: 0;
  right: -12%;
  bottom: 14%;
  left: -12%;
  background: linear-gradient(115deg, rgba(41, 242, 200, 0.13), rgba(255, 106, 43, 0.09) 56%, rgba(11, 15, 14, 0) 82%);
  transform: skewY(-4deg);
  transform-origin: left top;
  pointer-events: none;
}

.page-contact .pc-closing .yb-container {
  position: relative;
}

.page-contact .pc-closing h2 {
  margin: 0 0 14px;
  font-size: clamp(25px, 4vw, 44px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .pc-closing p {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: clamp(14px, 1.5vw, 16.5px);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .pc-closing .pc-closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .pc-type summary {
    grid-template-columns: 20px minmax(0, 280px) minmax(0, 1fr);
    gap: 0 18px;
  }

  .page-contact .pc-type-hint {
    grid-column: 3;
  }

  .page-contact .pc-type-body {
    padding-left: 38px;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .pc-partner-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 30px;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 5vw, 80px);
  }

  .page-contact .pc-submit-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .pc-scope-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .pc-timeline {
    position: relative;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(18px, 2.5vw, 34px);
  }

  .page-contact .pc-timeline::before {
    content: "";
    position: absolute;
    top: 11px;
    right: 0;
    left: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--amber), rgba(255, 194, 75, 0.08));
  }

  .page-contact .pc-step {
    padding-top: 34px;
    padding-left: 0;
    border-left: 0;
  }

  .page-contact .pc-step::before {
    top: 7px;
    left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-type-mark {
    transition: none;
  }
}

.page-contact {
  --sliver: currentColor;
}