.page-contact {
  --pc-gap: clamp(20px, 3vw, 36px);
  background: var(--warm);
  color: var(--ink);
}

/* ============ 首屏 ============ */
.page-contact .pc-hero {
  position: relative;
  background: var(--ink);
  color: var(--warm);
  padding: calc(var(--header-h) + clamp(28px, 5vw, 66px)) 0 clamp(40px, 6vw, 88px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 46px), 0 100%);
  overflow: hidden;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 22px;
  width: min(420px, 42%);
  height: 6px;
  background: var(--red);
  transform: skewX(-28deg);
}

.page-contact .pc-hero .crumbs {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.04em;
  color: rgba(250, 246, 239, 0.68);
}

.page-contact .pc-hero .crumbs a {
  color: inherit;
  text-decoration: none;
}

.page-contact .pc-hero .crumbs a:hover,
.page-contact .pc-hero .crumbs a:focus-visible {
  color: var(--cyan);
}

.page-contact .pc-kicker {
  margin: clamp(22px, 3vw, 34px) 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .pc-title {
  margin: clamp(10px, 1.6vw, 18px) 0 clamp(14px, 2vw, 22px);
  font-size: clamp(2.4rem, 7.6vw, 5rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: 15ch;
}

.page-contact .pc-lead {
  margin: 0;
  max-width: 54ch;
  font-size: var(--fs-18);
  line-height: 1.8;
  color: rgba(250, 246, 239, 0.84);
}

.page-contact .pc-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin: clamp(22px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
}

.page-contact .pc-jump a {
  color: var(--cyan);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 2px solid rgba(22, 224, 206, 0.45);
  transition: border-color 160ms var(--ease);
}

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

/* ============ 区块节奏 ============ */
.page-contact .pc-band {
  padding: clamp(38px, 5.4vw, 88px) 0;
}

.page-contact .pc-band--contact {
  padding-top: clamp(26px, 4vw, 58px);
}

/* ============ 01 联系方式面板 ============ */
.page-contact .pc-plate {
  display: grid;
  gap: clamp(22px, 3.2vw, 40px);
  background: var(--paper);
  border-top: 4px solid var(--red);
  padding: clamp(22px, 3.6vw, 54px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 38px), calc(100% - 38px) 100%, 0 100%);
  outline: 1px solid var(--line);
  outline-offset: -1px;
}

.page-contact .pc-plate-grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 46px);
}

.page-contact .pc-channels {
  margin: 0;
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
}

.page-contact .pc-channel {
  display: grid;
  gap: 7px;
}

.page-contact .pc-channel-label {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-contact .pc-channel-value {
  margin: 0;
  display: inline-block;
  max-width: 100%;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.15rem, 3.6vw, 2rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
  padding-bottom: 6px;
  border-bottom: 3px solid var(--cyan);
  overflow-wrap: anywhere;
  user-select: all;
  -webkit-user-select: all;
}

.page-contact .pc-hint {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .pc-plate-side {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  align-content: start;
}

.page-contact .pc-meta {
  border-left: 4px solid var(--red);
  padding-left: 14px;
}

.page-contact .pc-meta-label {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-contact .pc-meta-value {
  margin: 0;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.7;
}

.page-contact .pc-geo {
  position: relative;
  height: 112px;
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .pc-geo-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.85;
}

.page-contact .pc-geo-pin {
  position: absolute;
  left: 44%;
  top: 40%;
  width: 18px;
  height: 22px;
  background: var(--red);
  clip-path: polygon(50% 100%, 0 42%, 50% 0, 100% 42%);
}

/* ============ 02 问题分类 ============ */
.page-contact .pc-routing-figure {
  margin: 0 0 clamp(24px, 3.4vw, 44px);
}

.page-contact .pc-rows {
  display: grid;
  gap: 2px;
  background: var(--warm);
  border-top: 1px solid var(--line);
}

.page-contact .pc-row {
  position: relative;
  display: grid;
  gap: 7px 18px;
  padding: clamp(18px, 2.4vw, 26px) clamp(14px, 2vw, 26px);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  transition: background-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-contact .pc-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--red);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 200ms var(--ease);
}

.page-contact .pc-row:hover,
.page-contact .pc-row:focus-within {
  background: var(--warm);
  box-shadow: inset 0 0 0 1px var(--line);
}

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

.page-contact .pc-row-key {
  margin: 0;
  font-size: var(--fs-18);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-contact .pc-row-channel {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--red);
}

.page-contact .pc-row-body {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .pc-row-body a {
  color: var(--cyan-deep);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid rgba(11, 143, 134, 0.4);
}

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

/* ============ 03 沟通前准备 ============ */
.page-contact .pc-band--prep {
  position: relative;
  background: var(--paper);
  overflow: hidden;
}

.page-contact .pc-band--prep::before {
  content: "";
  position: absolute;
  top: 0;
  left: -10%;
  width: 120%;
  height: 5px;
  background: linear-gradient(90deg, var(--red) 0 32%, var(--ink) 32% 64%, var(--cyan) 64% 100%);
  transform: skewX(-24deg);
}

.page-contact .pc-split {
  display: grid;
  gap: clamp(24px, 3.4vw, 46px);
}

.page-contact .pc-h2 {
  margin: 10px 0 clamp(14px, 2vw, 22px);
  font-size: clamp(1.7rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-contact .pc-split-lead {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 46ch;
  font-size: var(--fs-18);
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .pc-aside-card {
  align-self: start;
  background: var(--ink);
  color: var(--warm);
  padding: clamp(22px, 3vw, 34px);
  border-left: 6px solid var(--red);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-contact .pc-aside-card .card-eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .pc-path-line {
  margin: 12px 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-18);
  font-weight: 700;
  line-height: 1.6;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .pc-aside-card .card-body {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(250, 246, 239, 0.84);
}

/* ============ 04 自助入口 ============ */
.page-contact .pc-self-grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .pc-self-card {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 4px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  transition: transform 200ms var(--ease), background-color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .pc-self-card:hover,
.page-contact .pc-self-card:focus-visible {
  transform: translateY(-4px);
  background: var(--warm);
  border-top-color: var(--red);
}

.page-contact .pc-self-name {
  margin: 0;
  font-size: var(--fs-22);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-contact .pc-self-desc {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .pc-self-go {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--red);
}

/* ============ 05 反馈与合作 ============ */
.page-contact .pc-feedback-grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .pc-fb {
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--paper);
  border-left: 6px solid var(--ink);
}

.page-contact .pc-fb:nth-child(1) { border-left-color: var(--red); }
.page-contact .pc-fb:nth-child(2) { border-left-color: var(--amber); }
.page-contact .pc-fb:nth-child(3) { border-left-color: var(--cyan-deep); }
.page-contact .pc-fb:nth-child(4) { border-left-color: var(--ink-2); }

.page-contact .pc-fb-title {
  margin: 0 0 9px;
  font-size: var(--fs-22);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-contact .pc-fb-body {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--slate);
}

/* ============ 06 响应时间 ============ */
.page-contact .pc-band--timing {
  background: var(--ink);
  color: var(--warm);
}

.page-contact .pc-band--timing .pc-h2 {
  color: var(--warm);
}

.page-contact .pc-band--timing .sec-index {
  color: var(--cyan);
}

.page-contact .pc-timing {
  display: grid;
  gap: clamp(26px, 3.6vw, 50px);
}

.page-contact .pc-timing-figure {
  margin: 0;
}

.page-contact .pc-timing-list {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  border-top: 1px solid var(--ink-2);
}

.page-contact .pc-timing-item {
  display: grid;
  gap: 5px;
  padding: 15px 0;
  border-bottom: 1px solid var(--ink-2);
}

.page-contact .pc-timing-item dt {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-contact .pc-timing-item dd {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: rgba(250, 246, 239, 0.84);
}

.page-contact .pc-timing-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: rgba(250, 246, 239, 0.66);
}

.page-contact .pc-band--timing .figure-caption {
  color: rgba(250, 246, 239, 0.66);
}

/* ============ 焦点态 ============ */
.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ============ 响应式 ============ */
@media (min-width: 620px) {
  .page-contact .pc-timing-item {
    grid-template-columns: minmax(120px, 168px) minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .pc-self-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .pc-plate-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  }

  .page-contact .pc-split {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    align-items: start;
  }

  .page-contact .pc-row {
    grid-template-columns: minmax(140px, 200px) minmax(130px, 176px) minmax(0, 1fr);
    align-items: baseline;
  }
}

@media (min-width: 980px) {
  .page-contact .pc-timing {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-self-card,
  .page-contact .pc-row,
  .page-contact .pc-row::before {
    transition: none;
  }

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