.page-contact {
  --ct-gap: 20px;
  --ct-pad-x: 20px;
  padding: calc(var(--anchor-h) + 28px) var(--ct-pad-x) 104px;
  background-color: var(--bg-deep);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

@media (min-width: 1024px) {
  .page-contact {
    padding: calc(var(--anchor-h) + 46px) calc(var(--rail-right) + var(--gutter)) 120px calc(var(--rail-left) + var(--gutter));
    max-width: 1680px;
  }
}

/* ---------- 链接与焦点 ---------- */
.page-contact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 214, .34);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.page-contact a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  background-color: rgba(53, 224, 214, .08);
}
.page-contact a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}
.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink-3);
}
.page-contact .breadcrumb-item:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--line);
}
.page-contact .breadcrumb-item a {
  color: var(--ink-2);
  border-bottom-color: transparent;
}
.page-contact .breadcrumb-item a:hover {
  color: var(--gold);
  background-color: transparent;
}
.page-contact .breadcrumb-item[aria-current="page"] {
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.contact-hero {
  margin: 0 0 36px;
}
.contact-hero__brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
  white-space: nowrap;
}
.contact-hero__brand::after {
  content: "";
  flex: 1;
  height: 1px;
  background-image: linear-gradient(90deg, rgba(231, 180, 76, .58), var(--line) 62%, rgba(28, 42, 69, 0));
}
.contact-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 62px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--ink);
}
.contact-hero__lead {
  margin: 0 0 30px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------- 图片容器 ---------- */
.page-contact .media-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background-color: var(--bg-panel);
}
.page-contact .media-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .media-frame__cap {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--ink-3);
}
.contact-hero__media {
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}
.contact-hero__media .media-frame__img {
  aspect-ratio: 21 / 9;
}

/* ---------- 主体布局 ---------- */
.contact-layout {
  display: grid;
  gap: 26px;
}
.contact-flow {
  display: grid;
  gap: var(--ct-gap);
  min-width: 0;
}

/* ---------- 渠道信息牌 ---------- */
.channel-card {
  position: relative;
  padding: 24px 20px 22px;
  background-color: var(--bg-panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  box-shadow: var(--shadow-panel);
}
.channel-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .16;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 42px 42px;
  -webkit-mask-image: radial-gradient(130% 90% at 100% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(130% 90% at 100% 0%, #000 0%, transparent 72%);
}
.channel-card > * {
  position: relative;
  z-index: 1;
}
.channel-card__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--ink);
}
.channel-card__hint {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.channel-list {
  margin: 0;
  padding: 0;
  display: grid;
}
.channel-row {
  display: grid;
  gap: 4px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
}
.channel-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.channel-row__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.channel-row__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.channel-row__val a {
  border-bottom-color: rgba(53, 224, 214, .45);
}
.channel-card__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-3);
}

@media (min-width: 1024px) {
  .contact-layout {
    grid-template-columns: minmax(272px, 336px) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
  .channel-card {
    position: sticky;
    top: calc(var(--anchor-h) + 30px);
    padding: 26px 22px 24px;
  }
  .channel-row {
    grid-template-columns: 80px minmax(0, 1fr);
    gap: 12px;
    align-items: baseline;
  }
}

/* ---------- 切角内容块 ---------- */
.c-block {
  position: relative;
  padding: 26px 20px 26px;
  background-color: var(--bg-panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-panel);
  transition: transform .22s var(--ease), border-color .22s var(--ease);
}
.c-block::before,
.c-block::after {
  content: "";
  position: absolute;
  width: var(--cut);
  height: var(--cut);
  pointer-events: none;
}
.c-block::before {
  top: -1px;
  left: -1px;
  background-color: var(--bg-deep);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}
.c-block::after {
  bottom: -1px;
  right: -1px;
  background-color: var(--bg-deep);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}
@media (hover: hover) {
  .c-block:hover {
    transform: translateY(-4px);
    border-color: rgba(53, 224, 214, .34);
  }
}
.c-block__label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.c-block__label::before {
  content: "";
  width: 22px;
  height: 1px;
  background-color: var(--gold);
}
.c-block__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--ink);
}
.c-block__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-2);
}
.c-block__text:last-child {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .c-block {
    padding: 30px 30px 30px;
  }
}

/* ---------- 标题写法示例 ---------- */
.title-samples {
  margin: 0 0 18px;
  padding: 14px 16px;
  background-color: rgba(7, 11, 22, .74);
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  display: grid;
  gap: 8px;
}
.title-samples__head {
  margin: 0 0 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.title-sample {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

/* ---------- 项目符号列表 ---------- */
.dot-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.dot-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-2);
}
.dot-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 10px;
  height: 2px;
  background-color: var(--gold);
}

/* ---------- 问题类型对照 ---------- */
.contact-type__media {
  margin: 0 0 20px;
}
.contact-type__media .media-frame__img {
  aspect-ratio: 16 / 10;
}
.type-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.type-item {
  position: relative;
  padding: 16px 16px 15px;
  background-color: rgba(7, 11, 22, .56);
  border: 1px solid var(--line);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.type-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--line);
  transition: background-color .2s var(--ease);
}
.type-item:hover {
  border-color: rgba(53, 224, 214, .38);
  background-color: rgba(14, 21, 38, .9);
}
.type-item:hover::before {
  background-color: var(--cyan);
}
.type-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
}
.type-item__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: -.01em;
  color: var(--ink);
}
.type-item__prefix {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--gold);
  padding: 3px 9px;
  border: 1px solid rgba(231, 180, 76, .5);
  background-color: rgba(231, 180, 76, .08);
}
.type-item__meta {
  margin: 0;
  display: grid;
  gap: 9px;
}
.type-item__meta > div {
  display: grid;
  gap: 3px;
}
.type-item__meta dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.type-item__meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-2);
}

@media (min-width: 640px) {
  .type-item__meta > div {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 12px;
    align-items: baseline;
  }
}

/* ---------- 电话 ---------- */
.phone-line {
  margin: 0 0 14px;
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background-color: rgba(7, 11, 22, .7);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
}
.phone-line__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.phone-line__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 6.2vw, 46px);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--orange);
  border-bottom: 0;
  overflow-wrap: anywhere;
}
.page-contact .phone-line__num:hover {
  color: var(--orange);
  background-color: rgba(255, 122, 61, .1);
  border-bottom-color: transparent;
}
.phone-window {
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-2);
}
.phone-grid {
  display: grid;
  gap: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}
.phone-grid__head {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--gold);
}

@media (min-width: 720px) {
  .phone-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
    align-items: start;
  }
}

/* ---------- 登记信息 ---------- */
.reg-list {
  margin: 0 0 20px;
  padding: 0;
  border-top: 1px solid var(--line);
}
.reg-row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.reg-row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--ink-3);
}
.reg-row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.reg-row__icp {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-2);
}

@media (min-width: 640px) {
  .reg-row {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

/* ---------- 进入视口 ---------- */
.page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}
.page-contact [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .c-block,
  .type-item {
    transition: none;
  }
  .c-block:hover {
    transform: none;
  }
}