.page-contact {
  --split-pad: clamp(22px, 4.4vw, 82px);
  --seam-w: clamp(40px, 6vw, 96px);
}

/* ---------- 斜向分割首屏 ---------- */
.page-contact .contact-split {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--deep);
  margin-top: 14px;
}

.page-contact .contact-split__lead {
  position: relative;
  padding: clamp(30px, 5vw, 68px) var(--split-pad) clamp(40px, 5.4vw, 74px);
  background:
    radial-gradient(130% 92% at 4% 0%, rgba(0, 229, 255, 0.13), transparent 62%),
    var(--deep);
}

.page-contact .contact-split__lead h1 {
  margin: 14px 0 0;
  font-family: var(--narrow);
  font-size: clamp(30px, 5.6vw, 58px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.012em;
  color: var(--ink);
  max-width: 15ch;
}

.page-contact .contact-split__lead .lede {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-split__info {
  position: relative;
  padding: clamp(28px, 4.4vw, 62px) var(--split-pad) clamp(40px, 5.4vw, 74px);
  background:
    linear-gradient(155deg, rgba(124, 77, 255, 0.26), transparent 58%),
    var(--panel);
  border-top: 1px solid var(--line);
}

/* ---------- 主题选择 ---------- */
.page-contact .topic-picker {
  margin-top: clamp(26px, 3.4vw, 42px);
  padding-top: 22px;
  border-top: 1px dashed var(--line);
}

.page-contact .topic-picker__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .topic-picker .chip-group {
  gap: 10px;
}

.page-contact .topic-picker .chip {
  font-size: 13.5px;
  padding: 9px 16px;
  border-radius: 999px;
  transition: border-color 0.28s var(--ease), background-color 0.28s var(--ease), color 0.28s var(--ease);
}

.page-contact .topic-picker .chip[aria-pressed="true"] {
  border-color: var(--orange);
  color: var(--ink);
  background: rgba(255, 107, 53, 0.16);
}

.page-contact .topic-picker__hint {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 44ch;
}

/* ---------- 联系方式 ---------- */
.page-contact .arena-shot {
  margin: 0 0 clamp(22px, 3vw, 34px);
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 14 / 9;
}

.page-contact .arena-shot .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .channel-list {
  margin: 0;
  display: grid;
}

.page-contact .channel-list__row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-list__row:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .channel-list dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .channel-list dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .channel-list dd.mono {
  font-size: 14px;
  letter-spacing: 0.01em;
}

.page-contact .channel-note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 通用小标题 ---------- */
.page-contact h2 {
  margin: 12px 0 0;
  font-family: var(--narrow);
  font-size: clamp(23px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.008em;
  color: var(--ink);
}

.page-contact .contact-sub__head {
  max-width: 62ch;
}

.page-contact .contact-sub__head .lede {
  margin: 16px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 订阅步骤 ---------- */
.page-contact .sub-steps {
  position: relative;
  margin-top: clamp(24px, 3.8vw, 46px);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--deep);
}

.page-contact .sub-steps__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
  pointer-events: none;
}

.page-contact .sub-steps::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(11, 5, 24, 0.95) 0%, rgba(26, 11, 46, 0.88) 56%, rgba(18, 42, 58, 0.82) 100%);
  pointer-events: none;
}

.page-contact .sub-steps__list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: clamp(24px, 3.6vw, 48px) clamp(20px, 3.4vw, 48px);
  display: grid;
  gap: 24px;
}

.page-contact .sub-steps__item {
  position: relative;
  transition: transform 0.3s var(--ease);
}

.page-contact .sub-steps__num {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .sub-steps__item h3 {
  margin: 10px 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .sub-steps__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

@media (hover: hover) {
  .page-contact .sub-steps__item:hover {
    transform: translateY(-4px);
  }

  .page-contact .sub-steps__item:hover .sub-steps__num {
    color: var(--orange);
  }
}

/* ---------- 值守时段 ---------- */
.page-contact .contact-hours {
  display: grid;
  gap: clamp(24px, 3.4vw, 46px);
}

.page-contact .hours-card {
  margin-top: clamp(22px, 2.8vw, 32px);
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background:
    linear-gradient(140deg, rgba(0, 229, 255, 0.1), transparent 60%),
    rgba(18, 42, 58, 0.6);
}

.page-contact .hours-card__label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-contact .hours-card__value {
  margin: 8px 0 0;
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .hours-card__value i {
  font-style: normal;
  color: var(--orange);
  padding: 0 6px;
}

.page-contact .hours-card__tape {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 4px;
  margin: 16px 0 0;
}

.page-contact .hours-card__tape span {
  height: 20px;
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.6), rgba(0, 229, 255, 0.1));
}

.page-contact .hours-card__tape span:nth-child(5),
.page-contact .hours-card__tape span:nth-child(6) {
  background: linear-gradient(180deg, rgba(255, 107, 53, 0.65), rgba(255, 107, 53, 0.12));
}

.page-contact .hours-card__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-contact .reply-list__item {
  display: grid;
  gap: 7px;
  padding: 18px 20px;
  border-radius: var(--r-md);
  border-left: 3px solid var(--line);
  background: rgba(18, 42, 58, 0.55);
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-contact .reply-list__item:hover {
  border-left-color: var(--cyan);
  background: rgba(18, 42, 58, 0.88);
}

.page-contact .reply-list__tag {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .reply-list__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 地址面板 ---------- */
.page-contact .addr-panel {
  display: grid;
  gap: clamp(20px, 3vw, 42px);
  padding: clamp(26px, 3.6vw, 50px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(0, 229, 255, 0.09), transparent 46%),
    linear-gradient(300deg, rgba(124, 77, 255, 0.18), transparent 52%),
    var(--night);
}

.page-contact .addr-panel__line {
  margin: 20px 0 0;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: clamp(14.5px, 1.8vw, 18px);
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .addr-panel__body p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .addr-panel__body p:last-child {
  margin-bottom: 0;
}

.page-contact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

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

.page-contact .contact-next {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-next--inline {
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 桌面端：斜向分割与横向栅格 ---------- */
@media (min-width: 980px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-contact .contact-split__lead {
    clip-path: polygon(0 0, 100% 0, calc(100% - var(--seam-w)) 100%, 0 100%);
    padding-right: calc(var(--split-pad) + var(--seam-w) * 0.55);
    padding-bottom: clamp(56px, 7vw, 104px);
  }

  .page-contact .contact-split__info {
    clip-path: polygon(var(--seam-w) 0, 100% 0, 100% 100%, 0 100%);
    border-top: 0;
    padding-left: calc(var(--split-pad) + var(--seam-w) * 0.7);
    padding-bottom: clamp(56px, 7vw, 104px);
  }

  .page-contact .contact-split__lead h1 {
    max-width: 13ch;
  }
}

@media (min-width: 860px) {
  .page-contact .sub-steps__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .sub-steps__item {
    padding: 0 clamp(12px, 1.8vw, 26px);
    border-left: 1px solid rgba(46, 27, 77, 0.9);
  }

  .page-contact .sub-steps__item:first-child {
    border-left: 0;
    padding-left: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hours {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 820px) {
  .page-contact .addr-panel {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .addr-panel__line {
    margin-top: 24px;
  }
}

@media (max-width: 519px) {
  .page-contact .channel-list__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-contact .channel-list dt {
    letter-spacing: 0.14em;
  }
}
<<<END>>>