.page-contact {
  --pc-cut: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  color: var(--text);
  padding-bottom: clamp(56px, 8vw, 108px);
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  margin-top: clamp(18px, 3.4vw, 32px);
}

/* ---------- 首屏 ---------- */

.page-contact .pc-hero {
  display: grid;
  gap: clamp(26px, 4.6vw, 52px);
  padding-top: clamp(26px, 4.6vw, 52px);
  padding-bottom: clamp(38px, 6.4vw, 82px);
}

.page-contact .pc-hero__copy {
  max-width: 40ch;
}

.page-contact .pc-hero h1 {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(34px, 7.2vw, 62px);
  line-height: 1.06;
  letter-spacing: -.01em;
  margin: 10px 0 0;
  color: var(--paper);
}

.page-contact .pc-hero__lead {
  margin-top: clamp(16px, 2.4vw, 24px);
  color: var(--muted);
  max-width: 54ch;
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.2vw, 32px);
}

.page-contact .pc-hero__art {
  position: relative;
}

.page-contact .pc-hero__art::before {
  content: "";
  position: absolute;
  left: -6%;
  top: -12%;
  width: 58%;
  height: 62%;
  background: radial-gradient(closest-side, rgba(0, 229, 255, .18), transparent 72%);
  pointer-events: none;
}

.page-contact .pc-hero__art .media-frame {
  position: relative;
  clip-path: var(--pc-cut);
}

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

.page-contact .pc-hero__stamp {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
  text-transform: uppercase;
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
}

@media (min-width: 880px) {
  .page-contact .pc-hero {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
  }
  .page-contact .pc-hero__art {
    transform: translateY(clamp(0px, 1.4vw, 18px));
  }
}

/* ---------- 章节骨架 ---------- */

.page-contact .pc-section {
  padding-top: clamp(42px, 6.4vw, 84px);
}

.page-contact .pc-section .section-head {
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

/* ---------- 联系通道 ---------- */

.page-contact .pc-channels {
  display: grid;
  gap: clamp(14px, 2.2vw, 20px);
}

.page-contact .pc-channel {
  position: relative;
  padding: clamp(22px, 3.2vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .pc-channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 68px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .pc-channel--phone::before {
  background: var(--amber);
}

.page-contact .pc-channel--addr::before {
  background: var(--teal);
}

.page-contact .pc-channel__label {
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--muted);
}

.page-contact .pc-channel__title {
  font-family: var(--font-title);
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 700;
  margin: 0;
  color: var(--paper);
}

.page-contact .pc-channel__value {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 19px);
  line-height: 1.5;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel--phone .pc-channel__value {
  color: var(--amber);
}

.page-contact .pc-channel--addr .pc-channel__value {
  color: var(--text);
  font-size: clamp(14px, 1.35vw, 16px);
}

.page-contact .pc-channel__desc {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

@media (min-width: 780px) {
  .page-contact .pc-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .pc-channel--addr {
    grid-column: 1 / -1;
  }
}

/* ---------- 反馈路径 ---------- */

.page-contact .pc-feedback {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-contact .pc-feedback__intro {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
  max-width: 62ch;
}

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

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

.page-contact .pc-step__head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}

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

.page-contact .pc-step__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}

.page-contact .pc-step details[open] .pc-step__head::after {
  content: "–";
}

.page-contact .pc-step__head:hover {
  color: var(--cyan);
}

.page-contact .pc-step__head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

.page-contact .pc-step__idx {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
  flex: none;
}

.page-contact .pc-step__body {
  padding: 0 4px 20px 40px;
}

.page-contact .pc-step__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-feedback__link {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-feedback__link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-contact .pc-feedback__art .media-frame {
  clip-path: var(--pc-cut);
}

@media (min-width: 920px) {
  .page-contact .pc-feedback {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: start;
  }
  .page-contact .pc-feedback__art {
    margin-top: clamp(10px, 2vw, 30px);
  }
}

/* ---------- 合作沟通 ---------- */

.page-contact .pc-partners__lead {
  margin: 0 0 clamp(20px, 3vw, 32px);
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-partners {
  display: grid;
  gap: clamp(14px, 2.2vw, 20px);
}

.page-contact .pc-partner {
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .pc-partner__idx {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--teal);
  border: 1px solid var(--grid);
  padding: 2px 8px;
  margin-bottom: 14px;
}

.page-contact .pc-partner__title {
  font-family: var(--font-title);
  font-size: clamp(18px, 2vw, 21px);
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--paper);
}

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

@media (min-width: 720px) {
  .page-contact .pc-partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 服务时间与范围 ---------- */

.page-contact .pc-hours {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.page-contact .pc-hours__clock {
  padding: clamp(24px, 3.6vw, 38px);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-contact .pc-hours__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--cyan);
}

.page-contact .pc-hours__time {
  margin: 0;
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .pc-hours__sub {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .pc-hours__facts {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .pc-fact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: clamp(15px, 2.4vw, 20px) 0;
  border-top: 1px solid var(--grid);
}

.page-contact .pc-fact:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-contact .pc-fact__k {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--amber);
  margin: 0;
}

.page-contact .pc-fact__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

@media (min-width: 840px) {
  .page-contact .pc-hours {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    align-items: start;
  }
  .page-contact .pc-fact {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

/* ---------- 提交前准备 ---------- */

.page-contact .pc-prepare {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .pc-prepare__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 28px);
  padding: clamp(16px, 2.6vw, 24px) 0;
  border-top: 1px solid var(--grid);
}

.page-contact .pc-prepare__item:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-contact .pc-prepare__num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-contact .pc-prepare__text h3 {
  margin: 0 0 6px;
  font-family: var(--font-title);
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .pc-prepare__text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 64ch;
}

.page-contact .pc-prepare__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .pc-prepare__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

@media (min-width: 760px) {
  .page-contact .pc-prepare__item {
    grid-template-columns: 64px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-step__head,
  .page-contact .pc-feedback__link a,
  .page-contact .pc-prepare__foot a {
    transition: none;
  }
}