.page-contact {
  color: var(--ink);
  font-family: var(--font-body);
  padding-bottom: var(--band);
}

.page-contact .contact-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  padding-block: clamp(16px, 3vw, 28px) 0;
}

.page-contact .contact-topbar .crumbs {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .contact-topbar .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--grid);
}

.page-contact .contact-topbar .crumbs a {
  color: var(--cyan);
  text-decoration: none;
}

.page-contact .contact-topbar .crumbs a:hover {
  text-decoration: underline;
}

.page-contact .contact-topbar .coord {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

/* ---------- hero ---------- */

.page-contact .contact-hero {
  padding-top: clamp(20px, 4vw, 44px);
}

.page-contact .contact-hero__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--grid);
  border-radius: var(--r-lg);
  padding: clamp(24px, 5vw, 64px);
  background-color: var(--panel);
  background-image:
    linear-gradient(180deg, rgba(0, 229, 255, 0.09), rgba(16, 24, 40, 0) 62%),
    repeating-linear-gradient(0deg, rgba(30, 42, 60, 0.55) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(90deg, rgba(30, 42, 60, 0.55) 0 1px, transparent 1px 88px);
}

.page-contact .contact-hero__frame::after {
  content: "";
  position: absolute;
  left: -70px;
  bottom: 54px;
  width: 280px;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 107, 26, 0), var(--orange));
  transform: rotate(-6deg);
  opacity: 0.85;
  pointer-events: none;
}

.page-contact .contact-hero__corner {
  position: absolute;
  top: 16px;
  right: 22px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.6vw, 74px);
  line-height: 1.05;
  letter-spacing: 0.01em;
  margin: 14px 0 0;
  color: var(--white);
  text-shadow: 1px 1px 0 rgba(0, 229, 255, 0.32);
  max-width: 18ch;
}

.page-contact .contact-hero__lede {
  max-width: 64ch;
  margin: 22px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .contact-hero__actions {
  margin-top: 28px;
}

.page-contact .contact-hero__actions .btn {
  text-decoration: none;
}

/* ---------- .page-contact ---------- */

.page-contact .contact-body {
  margin-top: clamp(30px, 6vw, 68px);
}

.page-contact .contact-index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: 12px 18px;
  border: 1px solid var(--grid);
  border-radius: var(--r-pill);
  background: rgba(16, 24, 40, 0.75);
  margin-bottom: clamp(28px, 5vw, 56px);
}

.page-contact .contact-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .contact-index__list a {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s var(--ease-out), background-color 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}

.page-contact .contact-index__list a:hover,
.page-contact .contact-index__list a:focus-visible,
.page-contact .contact-index__list a.is-current {
  color: var(--bg);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .contact-sec {
  padding-block: clamp(32px, 6vw, 72px);
  border-top: 1px solid var(--grid);
}

.page-contact .contact-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .contact-sec__head {
  max-width: 70ch;
}

.page-contact .contact-sec h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: 0.01em;
  margin: 10px 0 0;
  color: var(--white);
}

.page-contact .contact-sec__lede {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .h-sub {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.3;
  margin: 0;
  color: var(--white);
}

.page-contact p {
  margin: 0;
}

/* ---------- 合作类型 ---------- */

.page-contact .contact-types {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .contact-type {
  position: relative;
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  background: var(--panel);
  padding: clamp(18px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.24s var(--ease-out), transform 0.24s var(--ease-out);
}

.page-contact .contact-type:hover {
  border-color: rgba(0, 229, 255, 0.5);
  transform: translateY(-2px);
}

.page-contact .contact-type:nth-child(2):hover {
  border-color: rgba(255, 107, 26, 0.55);
}

.page-contact .contact-type__no {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .contact-type:nth-child(2) .contact-type__no {
  color: var(--orange);
}

.page-contact .contact-type p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-type__fit {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--grid);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
  color: var(--gold);
  font-size: 14px;
  line-height: 1.6;
}

.page-contact .contact-type__fit .index-label {
  color: var(--muted);
}

/* ---------- 图片 ---------- */

.page-contact .contact-figure {
  margin: clamp(24px, 4vw, 42px) 0 0;
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  object-fit: cover;
  background: var(--panel);
}

.page-contact .contact-figure figcaption {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 62ch;
}

/* ---------- 流程轨道 ---------- */

.page-contact .contact-track {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0 0 0 30px;
  position: relative;
  display: grid;
  gap: 30px;
}

.page-contact .contact-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(0, 229, 255, 0.12));
}

.page-contact .contact-track__step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .contact-track__step::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 5px;
  width: 15px;
  height: 15px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  background: var(--bg);
  box-shadow: 0 0 0 4px rgba(0, 229, 255, 0.08);
}

.page-contact .contact-track__step--final::before {
  border-color: var(--orange);
  background: rgba(255, 107, 26, 0.25);
  box-shadow: 0 0 0 4px rgba(255, 107, 26, 0.12);
}

.page-contact .contact-track__no {
  color: var(--cyan);
}

.page-contact .contact-track__step--final .contact-track__no {
  color: var(--orange);
}

.page-contact .contact-track__step p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-track__time {
  align-self: flex-start;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange);
  border: 1px solid rgba(255, 107, 26, 0.35);
  border-radius: var(--r-pill);
  padding: 4px 12px;
}

/* ---------- 清单 ---------- */

.page-contact .contact-checklist {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-checklist li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 14px;
  align-items: start;
  padding: 15px 18px;
  border: 1px solid var(--grid);
  border-radius: var(--r-sm);
  background: rgba(16, 24, 40, 0.6);
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
}

.page-contact .contact-checklist li::before {
  content: "";
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--cyan);
  border-radius: 5px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(0, 229, 255, 0) 70%);
}

/* ---------- 联系方式 ---------- */

.page-contact .contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-contact .contact-channel {
  border: 1px solid var(--grid);
  border-top: 2px solid var(--cyan);
  border-radius: var(--r-md);
  background: var(--panel);
  padding: clamp(18px, 3vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .contact-channel:nth-child(2) {
  border-top-color: var(--orange);
}

.page-contact .contact-channel:nth-child(3) {
  border-top-color: var(--gold);
}

.page-contact .contact-channel__value {
  font-family: var(--font-data);
  font-size: clamp(14px, 2.6vw, 16px);
  line-height: 1.55;
  color: var(--white);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-channel__value--addr {
  font-size: clamp(14px, 2.4vw, 15px);
  line-height: 1.7;
}

.page-contact .contact-channel__note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-record {
  margin-top: clamp(20px, 3vw, 32px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 站内反馈 ---------- */

.page-contact .contact-feedback {
  margin-top: clamp(22px, 4vw, 36px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .contact-feedback__box {
  border: 1px solid rgba(0, 229, 255, 0.32);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(0, 229, 255, 0.09), rgba(16, 24, 40, 0.9) 62%);
  padding: clamp(20px, 3.4vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .contact-feedback__box p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .contact-feedback__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .contact-feedback__side {
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  background: rgba(16, 24, 40, 0.6);
  padding: clamp(20px, 3.4vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .contact-feedback__side p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-feedback__side a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.4);
}

.page-contact .contact-feedback__side a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 常见问题 ---------- */

.page-contact .contact-faq {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  gap: 10px;
}

.page-contact .contact-faq details {
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  background: rgba(16, 24, 40, 0.6);
  overflow: hidden;
  transition: border-color 0.24s var(--ease-out);
}

.page-contact .contact-faq details[open] {
  border-color: rgba(0, 229, 255, 0.35);
}

.page-contact .contact-faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-contact .contact-faq summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-data);
  font-size: 18px;
  color: var(--cyan);
}

.page-contact .contact-faq details[open] summary::after {
  content: "\2013";
}

.page-contact .contact-faq summary:hover {
  color: var(--white);
}

.page-contact .contact-faq__body {
  padding: 0 20px 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  border-top: 1px solid var(--grid);
  padding-top: 14px;
}

.page-contact .contact-end {
  margin-top: clamp(40px, 7vw, 80px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .contact-types {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .contact-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .contact-feedback {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
    padding: 44px 0 0;
  }

  .page-contact .contact-track::before {
    left: 0;
    right: 0;
    top: 7px;
    bottom: auto;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, var(--cyan), rgba(0, 229, 255, 0.12));
  }

  .page-contact .contact-track__step::before {
    left: 0;
    top: -37px;
  }
}
<<<END>>>