.page-contact {
  --ct-gap: clamp(16px, 2.4vw, 32px);
  --ct-stroke: 2px;
  --ct-panel: linear-gradient(160deg, rgba(7, 26, 31, 0.96), rgba(5, 46, 36, 0.92));
  position: relative;
  padding-bottom: clamp(44px, 7vw, 96px);
  color: var(--jb-mist);
  background:
    repeating-linear-gradient(180deg, rgba(138, 154, 145, 0.05) 0 1px, transparent 1px 5px),
    radial-gradient(120% 78% at 88% 0%, rgba(0, 245, 212, 0.1), transparent 62%),
    var(--jb-night);
  font-family: var(--jb-body);
}

.page-contact .jb-crumbs {
  padding-top: clamp(14px, 2.4vw, 26px);
}

/* ---------- 框景首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  display: grid;
  margin-top: clamp(14px, 2.4vw, 26px);
  border: var(--ct-stroke) solid var(--jb-line);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.45);
  background: var(--ct-panel);
  overflow: hidden;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0, 245, 212, 0.055) 0 1px, transparent 1px 6px);
}

.page-contact .ct-hero__body {
  position: relative;
  z-index: 1;
  padding: clamp(20px, 4vw, 48px);
}

.page-contact .ct-hero h1 {
  margin: 0 0 clamp(12px, 1.6vw, 20px);
  font-family: var(--jb-head);
  font-weight: 800;
  font-size: clamp(2rem, 7.4vw, 3.9rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--jb-paper);
  text-wrap: balance;
}

.page-contact .ct-hero__lead {
  max-width: 52ch;
  margin: 0 0 clamp(18px, 3vw, 30px);
  font-size: clamp(0.98rem, 2.4vw, 1.1rem);
  line-height: 1.75;
  color: var(--jb-dim);
}

.page-contact .ct-hero__lines {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--jb-hair);
}

.page-contact .ct-line {
  display: grid;
  gap: 4px;
  padding: clamp(12px, 1.8vw, 18px) 0 clamp(12px, 1.8vw, 18px) clamp(0px, 1vw, 12px);
  border-bottom: 1px solid var(--jb-hair);
  text-decoration: none;
  color: inherit;
  transition: padding-left 0.22s ease, background-color 0.22s ease;
}

.page-contact .ct-line:hover,
.page-contact .ct-line:focus-visible {
  padding-left: clamp(8px, 2vw, 20px);
  background: rgba(0, 245, 212, 0.06);
}

.page-contact .ct-line__label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--jb-amber);
}

.page-contact .ct-line__value {
  font-size: clamp(1.15rem, 4.6vw, 1.95rem);
  line-height: 1.2;
  color: var(--jb-cyan);
  word-break: break-all;
}

.page-contact .ct-line__hint {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--jb-dim);
}

.page-contact .ct-hero__media {
  position: relative;
  z-index: 1;
  height: clamp(150px, 44vw, 230px);
  border-top: var(--ct-stroke) solid var(--jb-line);
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.58;
  filter: saturate(0.62) contrast(1.12);
}

/* ---------- 分栏骨架 ---------- */
.page-contact .ct-board {
  display: grid;
  gap: var(--ct-gap);
  margin-top: clamp(26px, 4.6vw, 54px);
}

.page-contact .ct-rail {
  border: var(--ct-stroke) solid var(--jb-hair);
  background: rgba(7, 26, 31, 0.72);
  padding: clamp(16px, 2.4vw, 22px);
}

.page-contact .ct-rail__title {
  margin: 0 0 12px;
  font-family: var(--jb-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--jb-amber);
}

.page-contact .ct-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-rail__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--jb-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.page-contact .ct-rail__list .jb-num {
  font-size: 0.74rem;
  color: var(--jb-line);
}

.page-contact .ct-rail__meta {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--jb-hair-soft);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--jb-dim);
}

.page-contact .ct-rail__meta p {
  margin: 0 0 4px;
}

.page-contact .ct-rail__meta .jb-num {
  color: var(--jb-cyan);
  font-size: 0.86rem;
}

/* ---------- 区段 ---------- */
.page-contact .ct-canvas {
  min-width: 0;
}

.page-contact .ct-section {
  padding: clamp(20px, 3.2vw, 34px) 0 clamp(26px, 4vw, 46px);
  border-top: 1px solid var(--jb-hair);
}

.page-contact .ct-section:first-child {
  border-top-color: var(--jb-line);
}

.page-contact .ct-section:target {
  box-shadow: inset 3px 0 0 var(--jb-cyan);
}

.page-contact .ct-section__head {
  display: flex;
  align-items: baseline;
  gap: clamp(10px, 1.6vw, 18px);
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-contact .ct-no {
  flex: 0 0 auto;
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  color: var(--jb-amber);
}

.page-contact .ct-section h2 {
  margin: 0;
  font-family: var(--jb-head);
  font-weight: 800;
  font-size: clamp(1.35rem, 4.6vw, 2.2rem);
  line-height: 1.16;
  color: var(--jb-paper);
  text-wrap: balance;
}

.page-contact .ct-lede {
  max-width: 62ch;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-size: 1rem;
  line-height: 1.78;
  color: var(--jb-dim);
}

.page-contact .ct-footnote {
  margin: clamp(14px, 2vw, 20px) 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--jb-amber);
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--jb-dim);
}

/* ---------- 通道卡片 ---------- */
.page-contact .ct-channels {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-channel {
  border: var(--ct-stroke) solid var(--jb-hair);
  background: rgba(5, 46, 36, 0.5);
  padding: clamp(16px, 2.4vw, 24px);
  transition: border-color 0.22s ease, transform 0.22s ease;
}

.page-contact .ct-channel:hover {
  border-color: var(--jb-cyan);
  transform: translateY(-3px);
}

.page-contact .ct-channel__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-contact .ct-channel h3 {
  margin: 0;
  font-family: var(--jb-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--jb-paper);
}

.page-contact .ct-channel__value {
  margin: 0 0 10px;
  font-size: clamp(1.05rem, 3.4vw, 1.32rem);
  line-height: 1.35;
  color: var(--jb-cyan);
  word-break: break-all;
}

.page-contact .ct-channel__note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--jb-dim);
}

/* ---------- 数据咨询步骤 ---------- */
.page-contact .ct-steps {
  display: grid;
  gap: 14px;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-contact .ct-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--jb-hair-soft);
}

.page-contact .ct-steps li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-contact .ct-steps__no {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--jb-cyan);
  color: var(--jb-cyan);
  font-size: 0.8rem;
  line-height: 1;
}

.page-contact .ct-steps p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--jb-dim);
}

.page-contact .ct-steps strong {
  color: var(--jb-mist);
  font-weight: 600;
}

.page-contact .ct-archive {
  border: var(--ct-stroke) solid var(--jb-line);
  background: var(--jb-paper);
  padding: clamp(16px, 2.6vw, 26px);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.42);
  color: var(--jb-ink);
}

.page-contact .ct-archive__title {
  margin: 0 0 14px;
  font-family: var(--jb-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #7a5a00;
}

.page-contact .ct-facts {
  display: grid;
  gap: 10px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-contact .ct-facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(4, 36, 28, 0.16);
  font-size: 0.92rem;
  line-height: 1.6;
}

.page-contact .ct-facts li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-contact .ct-facts .jb-num {
  flex: 0 0 auto;
  font-size: clamp(1.2rem, 3.6vw, 1.6rem);
  font-weight: 700;
  color: #052e24;
}

.page-contact .ct-archive__note {
  margin: 0;
  padding-top: 12px;
  border-top: 2px solid rgba(4, 36, 28, 0.22);
  font-size: 0.88rem;
  line-height: 1.74;
  color: #17352c;
}

/* ---------- 合作与反馈 ---------- */
.page-contact .ct-partner {
  gap: var(--ct-gap);
}

.page-contact .ct-partner__item {
  padding: clamp(14px, 2vw, 20px) 0 0;
  border-top: 3px solid var(--jb-amber);
}

.page-contact .ct-partner__item h3 {
  margin: 0 0 10px;
  font-family: var(--jb-head);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--jb-paper);
}

.page-contact .ct-partner__item p {
  margin: 0 0 10px;
  font-size: 0.9rem;
  line-height: 1.76;
  color: var(--jb-dim);
}

.page-contact .ct-partner__hint {
  color: var(--jb-cyan) !important;
  font-size: 0.84rem !important;
  padding-top: 8px;
  border-top: 1px solid var(--jb-hair-soft);
}

/* ---------- 邮件写法 ---------- */
.page-contact .ct-letter {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-letter__mail {
  border: var(--ct-stroke) solid var(--jb-cyan);
  background: rgba(0, 245, 212, 0.07);
  padding: clamp(16px, 2.4vw, 24px);
}

.page-contact .ct-letter__label {
  margin: 0 0 8px;
  font-family: var(--jb-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--jb-amber);
}

.page-contact .ct-letter__addr {
  display: block;
  font-size: clamp(1.02rem, 3.6vw, 1.42rem);
  line-height: 1.35;
  color: var(--jb-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--jb-hair);
  padding-bottom: 6px;
  word-break: break-all;
}

.page-contact .ct-letter__addr:hover,
.page-contact .ct-letter__addr:focus-visible {
  border-bottom-color: var(--jb-cyan);
}

.page-contact .ct-letter__tip {
  margin: 10px 0 0;
  font-size: 0.84rem;
  line-height: 1.68;
  color: var(--jb-dim);
}

.page-contact .ct-letter__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-letter__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--jb-hair-soft);
}

.page-contact .ct-letter__list li:last-child {
  border-bottom: none;
}

.page-contact .ct-letter__list > li > .jb-num {
  font-size: 1.1rem;
  color: var(--jb-amber);
  line-height: 1.5;
}

.page-contact .ct-letter__k {
  margin: 0 0 4px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--jb-paper);
}

.page-contact .ct-letter__list li p:not(.ct-letter__k) {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.74;
  color: var(--jb-dim);
}

/* ---------- 到访 ---------- */
.page-contact .ct-visit {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-visit .jb-figure {
  margin: 0;
  border: var(--ct-stroke) solid var(--jb-hair);
  background: var(--jb-deep);
  padding: 0;
  overflow: hidden;
}

.page-contact .ct-addr {
  border: var(--ct-stroke) solid var(--jb-line);
  background: rgba(7, 26, 31, 0.78);
  padding: clamp(16px, 2.6vw, 26px);
}

.page-contact .ct-addr__label {
  margin: 0 0 10px;
  font-family: var(--jb-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--jb-amber);
}

.page-contact .ct-addr__line {
  margin: 0 0 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--jb-hair);
  font-family: var(--jb-head);
  font-weight: 800;
  font-size: clamp(1.24rem, 4.4vw, 1.8rem);
  line-height: 1.28;
  color: var(--jb-paper);
}

.page-contact .ct-addr__note {
  margin: 0 0 10px;
  font-size: 0.9rem;
  line-height: 1.76;
  color: var(--jb-dim);
}

.page-contact .ct-addr__note:last-child {
  margin-bottom: 0;
  padding-left: 12px;
  border-left: 2px solid var(--jb-cyan);
}

/* ---------- 站点信息 ---------- */
.page-contact .ct-filing {
  display: grid;
  gap: 0;
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  padding: 0;
  border-top: 1px solid var(--jb-hair);
}

.page-contact .ct-filing > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--jb-hair-soft);
}

.page-contact .ct-filing dt {
  font-family: var(--jb-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--jb-line);
}

.page-contact .ct-filing dd {
  margin: 0;
  font-size: 0.98rem;
  color: var(--jb-mist);
  word-break: break-all;
}

.page-contact .ct-filing dd.jb-num {
  color: var(--jb-cyan);
}

.page-contact .ct-filing__links {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--jb-dim);
}

.page-contact .ct-filing__links a {
  color: var(--jb-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--jb-hair);
  padding-bottom: 1px;
}

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

/* ---------- 收尾 ---------- */
.page-contact .ct-outro {
  margin-top: clamp(30px, 5vw, 60px);
  padding: clamp(22px, 3.4vw, 40px);
  border: var(--ct-stroke) solid var(--jb-line);
  background:
    repeating-linear-gradient(90deg, rgba(0, 245, 212, 0.05) 0 1px, transparent 1px 26px),
    var(--jb-deep);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.45);
}

.page-contact .ct-outro h2 {
  margin: 0 0 10px;
  font-family: var(--jb-head);
  font-weight: 800;
  font-size: clamp(1.3rem, 4.2vw, 2rem);
  line-height: 1.2;
  color: var(--jb-paper);
}

.page-contact .ct-outro p {
  max-width: 58ch;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-size: 0.94rem;
  line-height: 1.76;
  color: var(--jb-dim);
}

.page-contact .ct-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板以上 ---------- */
@media (min-width: 700px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-visit {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: stretch;
  }

  .page-contact .ct-letter {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(20px, 3vw, 36px);
  }
}

/* ---------- 桌面左右分置 ---------- */
@media (min-width: 980px) {
  .page-contact .ct-hero {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: stretch;
  }

  .page-contact .ct-hero__media {
    height: 100%;
    min-height: 400px;
    border-top: none;
    border-left: var(--ct-stroke) solid var(--jb-line);
  }

  .page-contact .ct-board {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 62px);
    align-items: start;
  }

  .page-contact .ct-rail {
    position: sticky;
    top: 96px;
  }

  .page-contact .ct-rail__list {
    display: grid;
    gap: 2px;
  }

  .page-contact .ct-rail__list a {
    padding: 7px 0;
  }

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

@media (min-width: 1280px) {
  .page-contact .ct-hero h1 {
    font-size: clamp(2.6rem, 4.2vw, 4.1rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-line,
  .page-contact .ct-channel,
  .page-contact .ct-rail__list a,
  .page-contact .ct-letter__addr,
  .page-contact .ct-filing__links a {
    transition: none !important;
  }

  .page-contact .ct-channel:hover {
    transform: none;
  }
}