.page-contact {
  background: var(--ink-night);
  color: var(--cream);
  font-family: var(--font-body);
  padding-bottom: 0;
  overflow-x: hidden;
}

.page-contact .wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding: 18px 0 4px;
}
.page-contact .breadcrumbs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
}
.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--hairline);
}
.page-contact .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--neon-cyan);
  border-bottom-color: var(--neon-cyan);
}
.page-contact .breadcrumbs__item span[aria-current] {
  color: var(--cream-grey);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  margin-top: 10px;
  border-top: var(--edge) solid var(--neon-purple);
  border-bottom: 1px solid var(--hairline);
  padding: 34px 0 40px;
  background:
    radial-gradient(120% 160% at 8% 0%, rgba(180, 76, 255, .16), transparent 62%),
    radial-gradient(90% 140% at 96% 100%, rgba(53, 230, 224, .10), transparent 60%),
    var(--ink-night);
  overflow: hidden;
}
.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 12px;
  background-image: repeating-linear-gradient(90deg, var(--neon-cyan) 0 1px, transparent 1px 28px);
  opacity: .45;
  pointer-events: none;
}
.page-contact .contact-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: end;
}
.page-contact .contact-hero__titles .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--warm-orange);
  margin: 0;
}
.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  color: var(--cream);
}
.page-contact .contact-hero__lede {
  border-left: var(--edge) solid var(--neon-cyan);
  padding-left: 20px;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 64ch;
}
.page-contact .contact-hero__lede p {
  margin: 0 0 12px;
}
.page-contact .contact-hero__note {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--neon-cyan);
  margin: 0;
}

/* ---------- 分屏主体 ---------- */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 40px 0 64px;
}

/* ---------- 左侧联系卡 ---------- */
.page-contact .contact-rail {
  min-width: 0;
}
.page-contact .contact-card {
  background: var(--cream);
  color: var(--dark-brown);
  border: var(--edge) solid var(--dark-brown);
  box-shadow: var(--shadow-hard);
  padding: 24px 22px 22px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}
.page-contact .contact-card__head {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--dark-brown);
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--dark-brown);
}
.page-contact .contact-card__head::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--neon-purple);
  flex: none;
}
.page-contact .contact-line + .contact-line {
  margin-top: 16px;
}
.page-contact .contact-line__key {
  display: block;
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(35, 22, 54, .62);
  margin-bottom: 5px;
}
.page-contact .contact-line__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.6vw, 17px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--dark-brown);
  word-break: break-all;
  padding-bottom: 7px;
  border-bottom: 2px dotted rgba(35, 22, 54, .34);
  user-select: all;
  -webkit-user-select: all;
}
.page-contact .contact-card__tip {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(35, 22, 54, .78);
}
.page-contact .contact-card__cta {
  display: inline-block;
  margin-top: 18px;
}
.page-contact .contact-rail__figure {
  margin: 26px 0 0;
}
.page-contact .contact-rail__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-contact .frame-media__caption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 右栏章节骨架 ---------- */
.page-contact .contact-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 52px;
}
.page-contact .contact-sec {
  min-width: 0;
}
.page-contact .contact-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--hairline);
}
.page-contact .contact-sec__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  font-weight: 700;
  color: var(--ink-night);
  background: var(--neon-cyan);
  padding: 3px 7px;
  flex: none;
}
.page-contact .contact-sec__head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--cream);
}
.page-contact .contact-sec__lede {
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 68ch;
}
.page-contact .contact-sec__lede a {
  color: var(--neon-purple);
}

/* ---------- 三条联系路 ---------- */
.page-contact .contact-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-contact .contact-channel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 20px 20px 22px;
  background: var(--panel-deep);
  border-left: var(--edge) solid var(--neon-purple);
}
.page-contact .contact-channel--phone {
  border-left-color: var(--neon-cyan);
}
.page-contact .contact-channel--self {
  border-left-color: var(--warm-orange);
  background: linear-gradient(120deg, rgba(255, 138, 61, .12), transparent 70%), var(--panel-deep);
}
.page-contact .contact-channel__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--neon-cyan);
  border: 1px solid var(--hairline);
  padding: 3px 8px;
  margin: 0 0 10px;
}
.page-contact .contact-channel__name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  color: var(--cream);
}
.page-contact .contact-channel__value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--neon-cyan);
  word-break: break-all;
  user-select: all;
  -webkit-user-select: all;
}
.page-contact .contact-channel__use {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}
.page-contact .contact-channel__eta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--warm-orange);
}
.page-contact .contact-channel__right .link-underline {
  font-size: 14.5px;
}

/* ---------- 反馈准备清单 ---------- */
.page-contact .contact-prep {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .contact-prep__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--hairline);
}
.page-contact .contact-prep__item:first-child {
  padding-top: 4px;
}
.page-contact .contact-prep__idx {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-night);
  background: var(--neon-cyan);
}
.page-contact .contact-prep__title {
  font-family: var(--font-display);
  font-size: 17.5px;
  font-weight: 700;
  margin: 0 0 7px;
  color: var(--cream);
}
.page-contact .contact-prep__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .contact-prep__body a {
  color: var(--neon-purple);
}

/* ---------- 可展开的邮件模板 ---------- */
.page-contact .contact-template {
  margin-top: 26px;
  border: 2px solid var(--hairline);
  background: var(--panel-deep);
}
.page-contact .contact-template__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 13px 18px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  color: var(--neon-cyan);
  list-style: none;
}
.page-contact .contact-template__summary::-webkit-details-marker {
  display: none;
}
.page-contact .contact-template__summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--warm-orange);
  flex: none;
}
.page-contact .contact-template[open] .contact-template__summary::before {
  content: "–";
}
.page-contact .contact-template__body {
  margin: 0;
  padding: 18px;
  border-top: 2px solid var(--hairline);
  background: rgba(11, 7, 19, .65);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.95;
  letter-spacing: .03em;
  color: var(--cream-grey);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
  user-select: all;
  -webkit-user-select: all;
}

/* ---------- 处理流程时间轴 ---------- */
.page-contact .contact-track {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .contact-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 14px;
  bottom: 26px;
  width: 2px;
  background: linear-gradient(180deg, var(--neon-purple) 0%, var(--neon-cyan) 58%, var(--warm-orange) 100%);
}
.page-contact .contact-step {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: 26px;
}
.page-contact .contact-step:last-child {
  padding-bottom: 4px;
}
.page-contact .contact-step__dot {
  position: relative;
  z-index: 1;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  background: var(--ink-night);
  border: 3px solid var(--neon-purple);
  border-radius: 50%;
}
.page-contact .contact-step__title {
  font-family: var(--font-display);
  font-size: 18.5px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--cream);
}
.page-contact .contact-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}
.page-contact .contact-step:target .contact-step__title {
  color: var(--neon-cyan);
}
.page-contact .contact-step:target .contact-step__dot {
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
}
.page-contact .contact-track__figure {
  margin: 28px 0 0;
}
.page-contact .contact-track__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 合作对接 ---------- */
.page-contact .contact-partner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.page-contact .contact-partner__col {
  padding: 20px 20px 22px;
  background: var(--panel-deep);
  border-top: var(--edge) solid var(--neon-purple);
}
.page-contact .contact-partner__col:last-child {
  border-top-color: var(--warm-orange);
}
.page-contact .contact-partner__label {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--neon-cyan);
  margin: 0 0 14px;
}
.page-contact .contact-partner__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}
.page-contact .contact-partner__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}
.page-contact .contact-partner__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background: var(--neon-purple);
}
.page-contact .contact-partner__col:last-child .contact-partner__list li::before {
  background: var(--warm-orange);
}
.page-contact .contact-partner__foot {
  margin: 20px 0 0;
  padding: 16px 18px;
  border-left: var(--edge) solid var(--neon-cyan);
  background: rgba(53, 230, 224, .07);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--cream-grey);
}

/* ---------- 底部站点信息刻度条 ---------- */
.page-contact .contact-baseline {
  position: relative;
  border-top: var(--edge) solid var(--neon-purple);
  background: var(--panel-deep);
  padding: 46px 0 52px;
  overflow: hidden;
}
.page-contact .contact-baseline::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 11px;
  background-image: repeating-linear-gradient(90deg, var(--neon-cyan) 0 1px, transparent 1px 26px);
  opacity: .5;
  pointer-events: none;
}
.page-contact .contact-baseline__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  margin: 0;
  color: var(--cream);
}
.page-contact .contact-baseline__title::before {
  content: "";
  width: 24px;
  height: 3px;
  background: var(--warm-orange);
  flex: none;
}
.page-contact .contact-meta {
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--hairline);
}
.page-contact .contact-meta__item {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline);
}
.page-contact .contact-meta__key {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--mist);
  margin: 0;
}
.page-contact .contact-meta__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cream);
  word-break: break-word;
}

/* ---------- 焦点可见性 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible,
.page-contact .contact-line__value:focus-visible {
  outline: 2px solid var(--neon-purple);
  outline-offset: 3px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-channel {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }
  .page-contact .contact-channel__tag {
    margin-bottom: 12px;
  }
  .page-contact .contact-partner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
  .page-contact .contact-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
}

/* ---------- 桌面分屏与吸附 ---------- */
@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding: 42px 0 48px;
  }
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
  }
  .page-contact .contact-body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
    padding: 52px 0 80px;
  }
  .page-contact .contact-rail {
    position: sticky;
    top: 108px;
    align-self: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-sec__head h2 {
    font-size: 30px;
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}