.page-contact {
  --pc-indigo: #7C6BD6;
  --pc-wine: #B44A6E;
  --pc-line: rgba(29, 106, 130, .5);
  --pc-pad-y: clamp(52px, 7vw, 96px);
  position: relative;
  background: var(--navy-950);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.78;
}

.page-contact > * {
  position: relative;
  z-index: 1;
}

.page-contact::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(180deg, rgba(234, 242, 247, .025) 0 1px, transparent 1px 4px);
}

.page-contact h1,
.page-contact h2 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.015em;
  line-height: 1.16;
  margin: 0;
  color: var(--paper);
}

.page-contact h2 {
  font-size: clamp(1.35rem, 3.4vw, 2rem);
}

.page-contact p {
  margin: 0 0 16px;
}

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

/* ---------- 首屏 ---------- */

.pc-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(48px, 6vw, 88px);
  background-image: radial-gradient(58% 76% at 10% 0%, rgba(53, 224, 138, .11), transparent 64%);
}

.pc-hero__grid {
  display: grid;
  gap: 40px;
  align-items: center;
}

.pc-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--green);
  margin: 0 0 16px;
}

.pc-hero h1 {
  font-size: clamp(1.95rem, 6.4vw, 3.5rem);
  margin-bottom: 20px;
  max-width: 22ch;
}

.pc-lede {
  font-size: 1.0625rem;
  color: var(--mist);
  max-width: 48ch;
  margin-bottom: 26px;
}

.pc-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.pc-quick li {
  position: relative;
  padding-left: 22px;
  font-size: .95rem;
  color: var(--mist);
}

.pc-quick li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 12px;
  height: 2px;
  background: var(--amber);
}

.pc-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--tide);
  background: var(--navy-800);
  padding: 10px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.pc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.9) contrast(1.05);
}

.pc-hero__figure figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--mist-dim);
  padding: 10px 4px 4px;
}

/* ---------- 信息板 ---------- */

.pc-board {
  padding-bottom: var(--pc-pad-y);
}

.pc-board__grid {
  display: grid;
  gap: 44px;
}

.pc-channels__title {
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  margin-bottom: 12px;
}

.pc-channels__lede {
  color: var(--mist);
  font-size: .98rem;
  margin-bottom: 24px;
}

.pc-channel {
  background: var(--navy-800);
  border-left: 3px solid var(--tide);
  padding: 20px 22px 22px;
  margin-bottom: 14px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: border-color .16s var(--ease), transform .16s var(--ease), background-color .16s var(--ease);
}

.pc-channel:hover,
.pc-channel:focus-within {
  border-left-color: var(--green);
  transform: translateY(-2px);
}

.page-contact .pc-channel--primary {
  background: linear-gradient(160deg, rgba(53, 224, 138, .1), rgba(10, 34, 51, .95) 62%), var(--navy-800);
  border-left-color: var(--green);
}

.pc-channel__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
  margin: 0 0 10px;
}

.pc-channel__value {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.6vw, 1.3rem);
  line-height: 1.5;
  color: var(--paper);
  word-break: break-all;
  margin: 0 0 12px;
}

.pc-channel__value--mono {
  color: var(--green);
}

.pc-channel__note {
  font-size: .9rem;
  color: var(--mist);
  margin: 0 0 16px;
}

.pc-copy {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .07em;
  padding: 7px 16px;
  background: transparent;
  color: var(--green);
  border: 1px solid var(--tide);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color .16s var(--ease), background-color .16s var(--ease), color .16s var(--ease);
}

.pc-copy:hover {
  border-color: var(--green);
  background: rgba(53, 224, 138, .1);
}

.pc-copy:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.pc-copy[data-copied] {
  background: var(--green);
  border-color: var(--green);
  color: var(--navy-950);
}

.pc-addr {
  display: grid;
  margin: 0 0 12px;
  min-height: 1.8em;
}

.pc-addr > * {
  grid-area: 1 / 1;
  font-family: var(--font-mono);
  font-size: .95rem;
  line-height: 1.6;
  transition: opacity .2s var(--ease);
}

.pc-addr__short {
  color: var(--paper);
}

.pc-addr__full {
  color: var(--green);
  opacity: 0;
}

.pc-channel--addr:hover .pc-addr__short,
.pc-channel--addr:focus .pc-addr__short {
  opacity: 0;
}

.pc-channel--addr:hover .pc-addr__full,
.pc-channel--addr:focus .pc-addr__full {
  opacity: 1;
}

/* ---------- 右栏引导 ---------- */

.pc-guide {
  display: grid;
  gap: 56px;
}

.pc-block {
  scroll-margin-top: calc(var(--head-h) + 24px);
}

.page-contact .section-head {
  margin-bottom: 22px;
}

.page-contact .section-head__num {
  font-family: var(--font-mono);
  color: var(--green);
}

.page-contact .section-head__lede {
  color: var(--mist);
  font-size: .98rem;
}

.pc-ticket {
  position: relative;
  background: var(--navy-700);
  border: 1px dashed var(--tide);
  padding: 18px 20px 20px;
  margin-bottom: 24px;
}

.pc-ticket__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist-dim);
  margin: 0 0 10px;
}

.pc-ticket__code {
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 3.4vw, 1.15rem);
  line-height: 1.6;
  color: var(--paper);
  background: rgba(5, 19, 31, .65);
  padding: 10px 12px;
  margin: 0 0 10px;
  word-break: break-word;
}

.pc-ticket__sample {
  font-size: .88rem;
  color: var(--mist);
  margin: 0 0 16px;
}

.pc-points {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.pc-points li {
  position: relative;
  padding-left: 18px;
  font-size: .96rem;
  color: var(--mist);
}

.pc-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--tide);
  transform: rotate(45deg);
}

.pc-points__k {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--green);
  border: 1px solid rgba(53, 224, 138, .35);
  border-radius: 3px;
  padding: 1px 7px;
  margin-right: 8px;
}

.pc-figure {
  margin: 0;
  border-left: 3px solid var(--amber);
  background: var(--navy-800);
  padding: 12px;
}

.pc-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.pc-figure figcaption {
  font-size: .85rem;
  color: var(--mist-dim);
  padding: 10px 2px 2px;
}

/* ---------- 事项分类 ---------- */

.pc-cases {
  display: grid;
  gap: 10px;
}

.pc-case {
  background: var(--navy-800);
  border-left: 3px solid var(--tide);
  transition: background-color .16s var(--ease);
}

.pc-case--green { border-left-color: var(--green); }
.pc-case--amber { border-left-color: var(--amber); }
.pc-case--indigo { border-left-color: var(--pc-indigo); }
.pc-case--wine { border-left-color: var(--pc-wine); }

.pc-case summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--paper);
  transition: color .16s var(--ease);
}

.pc-case summary::-webkit-details-marker {
  display: none;
}

.pc-case summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 1.15rem;
  color: var(--mist-dim);
}

.pc-case[open] summary::after {
  content: "–";
  color: var(--green);
}

.pc-case summary:hover {
  color: var(--green);
}

.pc-case summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: -2px;
}

.pc-case__body {
  padding: 0 18px 18px;
  font-size: .94rem;
  color: var(--mist);
}

.pc-case__need {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--amber);
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--pc-line);
}

/* ---------- 斜向分隔 ---------- */

.pc-slash {
  overflow: hidden;
  padding: 34px 0;
}

.pc-slash span {
  display: block;
  height: 2px;
  width: 130%;
  margin-left: -15%;
  background: linear-gradient(90deg, transparent, var(--tide) 18%, var(--green) 50%, var(--tide) 82%, transparent);
  transform: rotate(-1.2deg);
  opacity: .45;
}

/* ---------- 响应时段 ---------- */

.pc-response {
  padding: var(--pc-pad-y) 0;
  background: linear-gradient(180deg, rgba(18, 50, 70, .7), rgba(5, 19, 31, 0) 74%);
  border-top: 1px solid var(--pc-line);
}

.pc-response__inner {
  display: grid;
  gap: 30px;
}

.pc-response__lead h2 {
  max-width: 16ch;
}

.pc-response__body {
  color: var(--mist);
  font-size: .98rem;
}

.pc-response__stats {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 1px;
  background: var(--pc-line);
  border: 1px solid var(--pc-line);
}

.pc-response__stat {
  background: var(--navy-950);
  padding: 16px 16px 18px;
}

.pc-response__stat dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist-dim);
}

.pc-response__stat dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.6vw, 1.35rem);
  color: var(--green);
  line-height: 1.35;
}

/* ---------- 合作对接 ---------- */

.pc-partner {
  padding: var(--pc-pad-y) 0;
}

.pc-partner__grid {
  display: grid;
  gap: 36px;
}

.pc-partner__copy p {
  color: var(--mist);
  font-size: .98rem;
  max-width: 52ch;
}

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

.pc-needs li {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--pc-line);
}

.pc-needs__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber);
}

.pc-needs__v {
  font-size: .94rem;
  color: var(--mist);
  line-height: 1.7;
}

/* ---------- 来自哪里 ---------- */

.pc-where {
  padding: 0 0 var(--pc-pad-y);
}

.pc-where__grid {
  display: grid;
  gap: 34px;
  align-items: center;
}

.pc-where__map {
  border: 1px solid var(--tide);
  background: var(--navy-800);
  padding: 14px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.pc-where__map svg {
  display: block;
  width: 100%;
  height: auto;
}

.pc-where__copy h2 {
  margin-bottom: 16px;
}

.pc-where__copy p {
  color: var(--mist);
  font-size: .98rem;
  max-width: 50ch;
}

.pc-addr-block {
  font-style: normal;
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 18px 20px;
  border-left: 3px solid var(--amber);
  background: var(--navy-800);
}

.pc-addr-block span {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  word-break: break-word;
}

.pc-addr-block span:first-child {
  color: var(--paper);
}

.pc-addr-block span:last-child {
  color: var(--green-deep);
  color: var(--green);
}

/* ---------- 常用页面 ---------- */

.pc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 0 clamp(48px, 6vw, 84px);
}

.pc-links a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--green);
  text-decoration: none;
  border: 1px solid var(--tide);
  border-radius: 999px;
  padding: 7px 16px;
  transition: border-color .16s var(--ease), background-color .16s var(--ease), color .16s var(--ease);
}

.pc-links a:hover {
  border-color: var(--green);
  background: rgba(53, 224, 138, .1);
}

.pc-links a:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .pc-needs li {
    grid-template-columns: 104px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .pc-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
  }

  .pc-response__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }

  .pc-response__lead {
    grid-row: span 2;
  }

  .pc-response__stats {
    grid-column: 2 / 3;
  }

  .pc-partner__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .pc-where__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
  }
}

@media (min-width: 980px) {
  .pc-board__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }

  .pc-channels {
    position: sticky;
    top: calc(var(--head-h) + 28px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .pc-channel,
  .pc-copy,
  .pc-links a,
  .pc-case summary,
  .pc-addr > * {
    transition: none;
  }

  .pc-channel:hover,
  .pc-channel:focus-within {
    transform: none;
  }
}