.page-contact {
  --pc-gap: clamp(14px, 2.6vw, 22px);
  --pc-sheet: #FFFFFF;
  --pc-ink-soft: rgba(11, 31, 26, .74);
  --pc-rule-dark: rgba(11, 31, 26, .16);
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact .container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-deep);
  padding-top: calc(var(--header-h) + clamp(30px, 7vw, 76px));
  padding-bottom: clamp(40px, 8vw, 88px);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-contact .contact-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 78% 50%;
  opacity: .34;
}

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(103deg, rgba(6, 18, 15, .97) 0%, rgba(6, 18, 15, .88) 40%, rgba(11, 31, 26, .58) 76%, rgba(11, 31, 26, .82) 100%),
    repeating-linear-gradient(0deg, rgba(53, 240, 200, .05) 0 1px, transparent 1px 5px);
}

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

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(20px, 4vw, 36px);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--fog);
}

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

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

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--paper);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

.page-contact .eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding-left: 10px;
  border-left: 2px solid var(--orange);
  font-size: .74rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0 0 20px;
  max-width: 19ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.85rem, 6.6vw, 3.55rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(.95rem, 2.4vw, 1.06rem);
  line-height: 1.8;
  color: var(--fog);
}

.page-contact .contact-hero__panel {
  position: relative;
  padding: clamp(20px, 4vw, 30px);
  background: linear-gradient(152deg, rgba(28, 42, 38, .94), rgba(11, 31, 26, .92));
  border: 1px solid var(--rule-strong);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .contact-hero__panel-kicker {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: .82rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .contact-hero__panel-text {
  margin: 0 0 22px;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--paper);
}

/* ---------- 自助入口 ---------- */
.page-contact .contact-self {
  background: var(--ink);
  padding: clamp(46px, 8vw, 86px) 0;
  border-top: 1px solid var(--rule);
}

.page-contact .contact-self__head {
  max-width: 54ch;
}

.page-contact .contact-self__head h2 {
  margin: 0 0 16px;
}

.page-contact .contact-self__head p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--fog);
}

.page-contact .contact-self__grid {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(26px, 4vw, 40px);
}

.page-contact .contact-self__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3.4vw, 30px);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  text-decoration: none;
  transition: border-color .25s var(--ease), background-color .25s var(--ease), transform .25s var(--ease);
}

.page-contact .contact-self__card:hover,
.page-contact .contact-self__card:focus-visible {
  background: #22322D;
  border-color: rgba(255, 90, 31, .55);
  transform: translateY(-3px);
}

.page-contact .contact-self__card .tag {
  align-self: flex-start;
}

.page-contact .contact-self__card h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .contact-self__card p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--fog);
}

.page-contact .contact-self__go {
  margin-top: auto;
  padding-top: 6px;
  font-size: .84rem;
  letter-spacing: .08em;
  color: var(--orange);
}

/* ---------- 三条联系路径 ---------- */
.page-contact .contact-paths {
  position: relative;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
  padding: clamp(48px, 9vw, 96px) 0;
}

.page-contact .contact-paths__texture {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .13;
}

.page-contact .contact-paths__texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.page-contact .contact-paths h2 {
  margin: 0;
  color: var(--ink);
}

.page-contact .contact-paths__grid {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-contact .path {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 3.6vw, 34px);
  background: var(--pc-sheet);
  border: 1px solid var(--cream);
  border-radius: 4px;
  box-shadow: 0 18px 34px -30px rgba(6, 18, 15, .85);
}

.page-contact .path--lead {
  border-top: 3px solid var(--orange);
}

.page-contact .path .tag {
  align-self: flex-start;
  margin-bottom: 14px;
}

.page-contact .path .h-card {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.08rem, 3vw, 1.3rem);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .path__intro {
  margin: 0;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

.page-contact .path__meta {
  margin: 0;
  font-size: .82rem;
  line-height: 1.7;
  color: rgba(11, 31, 26, .58);
}

.page-contact .path__mono {
  display: block;
  margin: 0 0 12px;
  padding: 13px 15px;
  background: var(--ink-deep);
  border: 1px solid rgba(53, 240, 200, .24);
  border-radius: 3px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Noto Sans SC", monospace;
  font-size: clamp(.92rem, 2.7vw, 1.08rem);
  letter-spacing: .01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
  word-break: break-all;
}

.page-contact .path--mail .path__mono {
  margin-top: auto;
}

/* 步骤条 */
.page-contact .path-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .path-steps li {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.page-contact .path-steps__num {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: 1.34rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--orange);
}

.page-contact .path-steps__text {
  font-size: .92rem;
  line-height: 1.7;
  color: var(--pc-ink-soft);
}

.page-contact .path-steps__text a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

.page-contact .path-steps__text a:hover,
.page-contact .path-steps__text a:focus-visible {
  color: var(--orange);
}

/* 提交清单 */
.page-contact .path__note {
  margin-top: 26px;
  padding: 16px clamp(14px, 2.6vw, 20px);
  background: rgba(11, 31, 26, .05);
  border: 1px dashed var(--pc-rule-dark);
  border-radius: 3px;
}

.page-contact .path__note-title {
  margin: 0 0 12px;
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink);
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 24px;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--fog);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--cyan);
  background: rgba(53, 240, 200, .14);
  transform: rotate(45deg);
}

.page-contact .path .checklist li {
  color: var(--pc-ink-soft);
}

.page-contact .path .checklist li::before {
  border-color: var(--orange);
  background: rgba(255, 90, 31, .12);
}

/* ---------- 合作与内容交流 ---------- */
.page-contact .contact-coop {
  background: var(--ink);
  padding: clamp(48px, 8vw, 90px) 0;
  border-top: 1px solid var(--rule);
}

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

.page-contact .contact-coop__intro h2 {
  margin: 0 0 18px;
  max-width: 22ch;
}

.page-contact .contact-coop__intro p {
  margin: 0;
  max-width: 48ch;
  font-size: .95rem;
  line-height: 1.82;
  color: var(--fog);
}

.page-contact .contact-coop__note {
  margin-top: 16px;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  color: var(--paper);
  font-size: .9rem;
}

.page-contact .fold {
  background: var(--card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--cyan);
  border-radius: 3px;
  overflow: hidden;
}

.page-contact .fold + .fold {
  margin-top: 14px;
}

.page-contact .fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 17px clamp(16px, 3vw, 22px);
  font-size: .98rem;
  font-weight: 700;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

.page-contact .fold > summary::-webkit-details-marker {
  display: none;
}

.page-contact .fold > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--orange);
}

.page-contact .fold[open] > summary::after {
  content: "–";
}

.page-contact .fold[open] > summary {
  border-bottom: 1px solid var(--rule);
}

.page-contact .fold > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-contact .fold__body {
  padding: 18px clamp(16px, 3vw, 22px) 22px;
}

.page-contact .fold__foot {
  margin: 14px 0 0;
  font-size: .88rem;
  line-height: 1.78;
  color: var(--fog);
}

/* ---------- 底部信息窄带 ---------- */
.page-contact .contact-legal {
  background: var(--ink-deep);
  border-top: 1px solid var(--rule);
  padding: clamp(24px, 4vw, 38px) 0;
}

.page-contact .contact-legal__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 22px;
}

.page-contact .contact-legal__title {
  margin: 0;
  flex: 0 0 100%;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: #4E635E;
}

.page-contact .contact-legal__row {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  font-size: .82rem;
  line-height: 1.7;
}

.page-contact .contact-legal__label {
  color: #4E635E;
  letter-spacing: .08em;
}

.page-contact .contact-legal__value {
  color: #7A8F89;
}

.page-contact .contact-legal__fold {
  font-size: .82rem;
  line-height: 1.7;
}

.page-contact .contact-legal__fold > summary {
  display: inline-block;
  color: #7A8F89;
  cursor: pointer;
  list-style: none;
  border-bottom: 1px dashed rgba(143, 166, 160, .38);
}

.page-contact .contact-legal__fold > summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-legal__fold > summary:hover,
.page-contact .contact-legal__fold > summary:focus-visible {
  color: var(--cyan);
}

.page-contact .contact-legal__note {
  margin: 8px 0 0;
  color: #7A8F89;
  letter-spacing: .04em;
}

.page-contact .contact-legal__links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .82rem;
  color: #4E635E;
}

.page-contact .contact-legal__links a {
  color: #7A8F89;
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 166, 160, .28);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-self__grid {
    grid-template-columns: 1.16fr .84fr;
    align-items: stretch;
  }

  .page-contact .path-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .path-steps li {
    flex-direction: column;
    gap: 10px;
    padding-right: 26px;
  }

  .page-contact .path-steps li:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: 6px;
    top: 0;
    font-size: 1rem;
    line-height: 1.4;
    color: var(--orange);
  }
}

@media (min-width: 880px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, .82fr);
    align-items: end;
    gap: 52px;
  }

  .page-contact .contact-paths__grid {
    grid-template-columns: 1.42fr 1fr;
    grid-template-rows: auto 1fr;
    align-items: start;
  }

  .page-contact .path--lead {
    grid-column: 1;
    grid-row: 1 / span 2;
  }

  .page-contact .path--mail {
    grid-column: 2;
    grid-row: 1;
  }

  .page-contact .path--phone {
    grid-column: 2;
    grid-row: 2;
    align-self: stretch;
  }

  .page-contact .contact-coop__inner {
    grid-template-columns: 1fr 1.05fr;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-hero__bg img {
    opacity: .4;
  }
}

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

  .page-contact .contact-self__card:hover,
  .page-contact .contact-self__card:focus-visible {
    transform: none;
  }
}