.page-contact {
  --cc-pad: clamp(22px, 3.2vw, 40px);
  --cc-gap: clamp(16px, 2.2vw, 26px);
  --cc-sheen: linear-gradient(155deg, rgba(20, 49, 95, 0.62) 0%, rgba(5, 11, 26, 0.58) 100%);
  background: var(--ink);
  color: var(--steel);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-contact .cc-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + var(--strip-h) + clamp(36px, 7vw, 96px));
  padding-bottom: clamp(46px, 7vw, 88px);
}

.page-contact .cc-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .cc-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.36;
}

.page-contact .cc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(118% 88% at 84% 6%, rgba(255, 106, 26, 0.18), transparent 58%),
    linear-gradient(180deg, rgba(5, 11, 26, 0.66) 0%, rgba(5, 11, 26, 0.88) 46%, var(--ink) 100%);
}

.page-contact .cc-hero-inner {
  position: relative;
  z-index: 2;
}

.page-contact .cc-hero h1 {
  margin: 20px 0 0;
  max-width: 14ch;
  color: var(--mist);
}

.page-contact .cc-hero-lead {
  max-width: 62ch;
  margin-top: clamp(16px, 2.2vw, 26px);
  color: var(--steel);
}

/* ---------- 三块联系卡 ---------- */

.page-contact .cc-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--cc-gap);
  margin-top: clamp(38px, 5.6vw, 72px);
}

.page-contact .cc-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: var(--cc-pad);
  border: 1px solid var(--line);
  background: var(--cc-sheen);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-contact .cc-card--mail {
  border-left: 3px solid var(--accent);
}

.page-contact .cc-mail {
  font-family: var(--font-num);
  font-size: clamp(19px, 3vw, 32px);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .cc-phone {
  font-family: var(--font-num);
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.1;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.page-contact .cc-addr {
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .cc-card-note {
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-contact .cc-copy {
  align-self: flex-start;
  margin-top: 4px;
}

@media (min-width: 880px) {
  .page-contact .cc-cards {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    grid-template-areas:
      "mail phone"
      "mail addr";
    align-items: stretch;
  }

  .page-contact .cc-card--mail {
    grid-area: mail;
    justify-content: center;
  }

  .page-contact .cc-card--phone {
    grid-area: phone;
  }

  .page-contact .cc-card--addr {
    grid-area: addr;
  }
}

/* ---------- 章节通用头 ---------- */

.page-contact .cc-board-head {
  max-width: 720px;
  margin-bottom: clamp(26px, 3.8vw, 48px);
}

.page-contact .cc-board-head .section-title {
  margin: 14px 0 0;
  color: var(--mist);
}

.page-contact .cc-board-head .lead {
  margin-top: 16px;
  color: var(--rock);
}

/* ---------- 四类诉求 ---------- */

.page-contact .cc-topics {
  border-top: 1px solid var(--line);
}

.page-contact .cc-topic {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: clamp(22px, 3vw, 34px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .cc-topic > .index-label {
  color: var(--accent);
}

.page-contact .cc-topic-name {
  margin: 0;
  font-size: clamp(19px, 2vw, 25px);
  font-weight: 500;
  line-height: 1.4;
  color: var(--mist);
}

.page-contact .cc-topic-body p {
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--rock);
}

.page-contact .cc-topic-body .cc-topic-channel {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent-soft);
}

@media (min-width: 780px) {
  .page-contact .cc-topic {
    grid-template-columns: 60px minmax(0, 210px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-contact .cc-topic-body p {
    margin-top: 0;
  }
}

/* ---------- 合作四步 ---------- */

.page-contact .cc-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 2.6vw, 30px);
}

.page-contact .cc-step {
  padding-top: 22px;
  border-top: 2px solid var(--orbit);
}

.page-contact .cc-step:first-child {
  border-top-color: var(--accent);
}

.page-contact .cc-step h3 {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--mist);
}

.page-contact .cc-step p {
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--rock);
}

@media (min-width: 900px) {
  .page-contact .cc-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 来访与办公地址 ---------- */

.page-contact .cc-visit {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .cc-visit-figure {
  margin: 0;
  align-self: start;
}

.page-contact .cc-visit-list {
  margin: clamp(24px, 3vw, 36px) 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .cc-visit-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-contact .cc-visit-list dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--rock);
}

.page-contact .cc-visit-list dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--steel);
}

@media (min-width: 640px) {
  .page-contact .cc-visit-list > div {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 920px) {
  .page-contact .cc-visit {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    align-items: center;
  }
}

/* ---------- 回复节奏 ---------- */

.page-contact .cc-faq {
  border-top: 1px solid var(--line);
}

.page-contact .cc-faq details {
  border-bottom: 1px solid var(--line);
  padding: clamp(18px, 2.4vw, 26px) 0;
}

.page-contact .cc-faq summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 500;
  line-height: 1.5;
  color: var(--mist);
}

.page-contact .cc-faq summary::-webkit-details-marker {
  display: none;
}

.page-contact .cc-faq summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 22px;
  line-height: 1;
  color: var(--accent);
}

.page-contact .cc-faq details[open] summary::after {
  content: "−";
}

.page-contact .cc-faq summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.page-contact .cc-faq p {
  margin: 14px 0 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--rock);
}

/* ---------- 收束 ---------- */

.page-contact .cc-outro {
  padding: clamp(46px, 6.5vw, 92px) 0 clamp(56px, 8vw, 110px);
  border-top: 1px solid var(--line);
}

.page-contact .cc-outro-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 22px;
}

.page-contact .cc-outro-line {
  margin: 0;
  max-width: 24ch;
  font-size: clamp(18px, 2.2vw, 27px);
  font-weight: 300;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--steel);
}

.page-contact .cc-outro-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

/* ---------- 窄屏保护 ---------- */

@media (max-width: 480px) {
  .page-contact .cc-hero h1 {
    max-width: none;
  }

  .page-contact .cc-mail,
  .page-contact .cc-addr,
  .page-contact .cc-card-note {
    overflow-wrap: anywhere;
  }

  .page-contact .cc-outro-line {
    max-width: none;
  }
}