.page-contact {
  --pc-gap: clamp(20px, 3vw, 32px);
  --pc-pad: clamp(20px, 2.8vw, 30px);
}

.page-contact .pc-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .pc-crumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--mid);
}

.page-contact .pc-crumb a {
  color: var(--steel);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-contact .pc-crumb [aria-current="page"] {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(26px, 5vw, 52px);
  padding-bottom: clamp(40px, 6vw, 84px);
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(680px 340px at 88% 4%, rgba(43, 227, 200, 0.11), transparent 72%),
    radial-gradient(520px 300px at 2% 100%, rgba(255, 122, 47, 0.08), transparent 70%);
}

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

.page-contact .pc-hero__index {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .pc-hero__title {
  margin: 0 0 18px;
  font-size: clamp(28px, 5vw, 50px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .pc-hero__lede {
  max-width: 46ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .pc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-contact .pc-chip {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-contact .pc-chip--cool {
  border-color: rgba(43, 227, 200, 0.35);
  color: var(--cyan);
}

.page-contact .pc-chip--live {
  border-color: rgba(255, 122, 47, 0.4);
  color: var(--orange);
}

.page-contact .pc-hero__art {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--turf);
  box-shadow: var(--shadow-2);
  clip-path: polygon(0 0, 100% 0, 100% 86%, 84% 100%, 0 100%);
}

.page-contact .pc-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: 0.85;
}

/* ---------- 分区标题 ---------- */
.page-contact .pc-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-contact .pc-head__index {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .pc-head__title {
  margin: 0;
  font-size: clamp(21px, 2.8vw, 31px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .pc-head__note {
  max-width: 62ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 01 双栏控制台 ---------- */
.page-contact .pc-desk__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .pc-rail {
  display: grid;
  gap: 16px;
}

.page-contact .pc-channel {
  padding: var(--pc-pad);
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-contact .pc-channel__name {
  margin: 0;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-contact .pc-channel__value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(16px, 2vw, 21px);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-all;
  user-select: all;
}

.page-contact .pc-channel__value--phone {
  font-size: clamp(26px, 4vw, 38px);
  letter-spacing: 0.03em;
  color: var(--orange);
}

.page-contact .pc-channel__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--steel);
}

/* 留言面板 */
.page-contact .pc-composer {
  padding: var(--pc-pad);
  display: grid;
  gap: 22px;
  min-width: 0;
}

.page-contact .pc-composer__head {
  display: grid;
  gap: 8px;
}

.page-contact .pc-composer__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.3;
  color: var(--mist);
}

.page-contact .pc-composer__sub {
  max-width: 54ch;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .pc-kind {
  display: grid;
  gap: 12px;
}

.page-contact .pc-kind__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-contact .pc-composer__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .pc-kind__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .pc-kind__label {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--steel);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .pc-kind__label:hover {
  border-color: var(--cyan);
  color: var(--mist);
}

.page-contact #pc-k1:checked ~ .pc-kind__row label[for="pc-k1"],
.page-contact #pc-k2:checked ~ .pc-kind__row label[for="pc-k2"],
.page-contact #pc-k3:checked ~ .pc-kind__row label[for="pc-k3"],
.page-contact #pc-k4:checked ~ .pc-kind__row label[for="pc-k4"] {
  background: rgba(43, 227, 200, 0.12);
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .pc-kind__radio:focus-visible ~ .pc-kind__row label[for="pc-k1"],
.page-contact .pc-kind__radio:focus-visible ~ .pc-kind__row label[for="pc-k2"],
.page-contact .pc-kind__radio:focus-visible ~ .pc-kind__row label[for="pc-k3"],
.page-contact .pc-kind__radio:focus-visible ~ .pc-kind__row label[for="pc-k4"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .pc-kind__hints {
  border-left: 2px solid var(--cyan);
  padding-left: 14px;
  min-height: 62px;
}

.page-contact .pc-kind__hint {
  display: none;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact #pc-k1:checked ~ .pc-kind__hints .pc-kind__hint--1,
.page-contact #pc-k2:checked ~ .pc-kind__hints .pc-kind__hint--2,
.page-contact #pc-k3:checked ~ .pc-kind__hints .pc-kind__hint--3,
.page-contact #pc-k4:checked ~ .pc-kind__hints .pc-kind__hint--4 {
  display: block;
}

/* 字段 */
.page-contact .pc-fields {
  display: grid;
  gap: 16px;
}

.page-contact .pc-field {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.page-contact .pc-field__label {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .pc-field__input {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 13px;
  background: rgba(16, 20, 19, 0.62);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  color: var(--mist);
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.6;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .pc-field__input::placeholder {
  color: var(--mid);
}

.page-contact .pc-field__input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(43, 227, 200, 0.26);
}

.page-contact .pc-field__input:not(:placeholder-shown):invalid {
  border-color: var(--orange);
  box-shadow: 0 0 0 2px rgba(255, 122, 47, 0.2);
}

.page-contact .pc-field__input--area {
  min-height: 132px;
  resize: vertical;
}

.page-contact .pc-field__msg {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mid);
}

.page-contact .pc-field__input:not(:placeholder-shown):invalid ~ .pc-field__msg {
  color: var(--orange);
}

.page-contact .pc-composer__foot {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-contact .pc-composer__tip {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .pc-composer__tip b {
  font-family: var(--mono);
  font-weight: 400;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .pc-composer__tip a,
.page-contact .pc-hours__tail a,
.page-contact .pc-office__tail a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line-2);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* ---------- 03 问题分类 ---------- */
.page-contact .pc-topics__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .pc-topic {
  position: relative;
  padding: var(--pc-pad);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(15, 42, 34, 0.88), rgba(16, 20, 19, 0.6));
  display: grid;
  gap: 9px;
  min-width: 0;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .pc-topic:hover {
  border-left-color: var(--cyan);
}

.page-contact .pc-topic--hot {
  border-left-color: var(--orange);
}

.page-contact .pc-topic__no {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-contact .pc-topic__name {
  margin: 0;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--mist);
}

.page-contact .pc-topic__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 04 节奏 ---------- */
.page-contact .pc-hours__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .pc-hour {
  padding: var(--pc-pad);
  border: 1px solid var(--line);
  border-top: 2px solid var(--line-2);
  border-radius: var(--radius);
  background: rgba(15, 42, 34, 0.55);
  display: grid;
  gap: 6px;
  min-width: 0;
}

.page-contact .pc-hour--lead {
  border-top-color: var(--cyan);
  background: linear-gradient(150deg, rgba(22, 64, 52, 0.75), rgba(16, 20, 19, 0.55));
}

.page-contact .pc-hour--hot {
  border-top-color: var(--orange);
}

.page-contact .pc-hour__value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--mist);
  white-space: nowrap;
}

.page-contact .pc-hour__value span {
  margin-left: 6px;
  font-size: 0.42em;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-contact .pc-hour--lead .pc-hour__value {
  color: var(--cyan);
}

.page-contact .pc-hour--hot .pc-hour__value {
  color: var(--orange);
}

.page-contact .pc-hour__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .pc-hour__text {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .pc-hours__tail {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 05 办公地址 ---------- */
.page-contact .pc-office__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: stretch;
}

.page-contact .pc-office__art {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(0deg, rgba(43, 227, 200, 0.06), rgba(43, 227, 200, 0.06)),
    repeating-linear-gradient(90deg, var(--turf) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(0deg, var(--turf) 0 1px, transparent 1px 46px),
    var(--ink);
}

.page-contact .pc-office__art img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 210px;
  object-fit: cover;
  opacity: 0.8;
  mix-blend-mode: luminosity;
}

.page-contact .pc-office__body {
  display: grid;
  gap: 14px;
  align-content: start;
  min-width: 0;
}

.page-contact .pc-office__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.25;
  color: var(--mist);
}

.page-contact .pc-office__addr {
  margin: 0;
  padding: 16px 0 16px 18px;
  border-left: 2px solid var(--cyan);
  font-size: clamp(17px, 2.6vw, 26px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .pc-office__text {
  max-width: 56ch;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--steel);
}

.page-contact .pc-reg {
  margin-top: 8px;
  padding: 18px var(--pc-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(58, 34, 19, 0.32);
  display: grid;
  gap: 6px;
}

.page-contact .pc-reg__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .pc-reg__value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(16px, 2.2vw, 21px);
  letter-spacing: 0.03em;
  color: var(--orange);
  word-break: break-all;
}

.page-contact .pc-reg__meta {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mid);
}

.page-contact .pc-office__tail {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .pc-head {
    grid-template-columns: 118px minmax(0, 1fr);
    grid-template-areas:
      "idx title"
      "idx note";
    column-gap: 24px;
    row-gap: 10px;
    align-items: start;
  }

  .page-contact .pc-head__index {
    grid-area: idx;
    padding-top: 6px;
  }

  .page-contact .pc-head__title {
    grid-area: title;
  }

  .page-contact .pc-head__note {
    grid-area: note;
  }

  .page-contact .pc-topics__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .pc-topic--wide {
    grid-column: span 2;
  }

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

  .page-contact .pc-office__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(24px, 4vw, 48px);
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 1040px) {
  .page-contact .pc-desk__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 28px;
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-hours__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
  }
}