.page-contact {
  --pc-cyan-soft: rgba(34, 230, 255, 0.12);
  --pc-violet-soft: rgba(123, 92, 255, 0.16);
  --pc-panel-line: rgba(61, 43, 107, 0.9);
  --pc-dash: rgba(61, 43, 107, 0.72);
}

.page-contact .yi-breadcrumb {
  padding-top: clamp(16px, 3vw, 26px);
  padding-bottom: 0;
  font-family: var(--yi-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3.5vw, 40px) 0 clamp(44px, 7vw, 88px);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 150%;
  background:
    radial-gradient(620px 340px at 6% 4%, var(--pc-violet-soft), transparent 70%),
    radial-gradient(560px 320px at 92% 14%, rgba(34, 230, 255, 0.13), transparent 66%);
  pointer-events: none;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(61, 43, 107, 0.28) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(61, 43, 107, 0.28) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(72% 62% at 46% 26%, #000 0%, transparent 100%);
  mask-image: radial-gradient(72% 62% at 46% 26%, #000 0%, transparent 100%);
  pointer-events: none;
}

.page-contact .pc-hero__inner {
  position: relative;
  display: grid;
  gap: 26px;
}

.page-contact .pc-hero__lead h1 {
  margin: 10px 0 0;
  font-size: clamp(38px, 9vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 800;
  color: var(--yi-text);
}

.page-contact .pc-hero__text {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--yi-muted);
}

.page-contact .pc-hero__card {
  display: grid;
  gap: 14px;
  padding: clamp(18px, 3vw, 24px);
  border: 1px solid var(--pc-panel-line);
  border-top: 2px solid var(--yi-cyan);
  border-radius: var(--yi-radius-lg);
  background: linear-gradient(160deg, rgba(36, 22, 64, 0.92), rgba(26, 16, 51, 0.78));
  box-shadow: 0 24px 60px -34px rgba(0, 0, 0, 0.95);
}

.page-contact .pc-hero__row {
  display: grid;
  gap: 5px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--pc-dash);
}

.page-contact .pc-hero__row:last-of-type {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .pc-hero__key {
  font-family: var(--yi-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--yi-muted);
}

.page-contact .pc-hero__val {
  font-family: var(--yi-mono);
  font-size: clamp(15px, 3.6vw, 18px);
  letter-spacing: -0.01em;
  color: var(--yi-text);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .pc-hero__val--small {
  font-size: clamp(14px, 3.2vw, 15px);
  line-height: 1.65;
}

.page-contact .pc-hero__note {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--yi-orange);
  font-size: 14px;
  line-height: 1.7;
  color: var(--yi-muted);
}

/* ---------- 章节标题 ---------- */
.page-contact .pc-head {
  margin-bottom: clamp(22px, 4vw, 38px);
  max-width: 64ch;
}

.page-contact .pc-head h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--yi-text);
}

.page-contact .pc-head__text {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--yi-muted);
}

/* ---------- 渠道切换 ---------- */
.page-contact .ch-switch {
  position: relative;
}

.page-contact .ch-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  border: 0;
  opacity: 0;
}

.page-contact .ch-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-contact .ch-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--pc-panel-line);
  border-radius: var(--yi-pill);
  background: rgba(26, 16, 51, 0.7);
  color: var(--yi-muted);
  font-size: 15px;
  cursor: pointer;
  transition: border-color 0.25s var(--yi-ease), background 0.25s var(--yi-ease),
    color 0.25s var(--yi-ease), box-shadow 0.25s var(--yi-ease);
}

.page-contact .ch-pill__idx {
  font-family: var(--yi-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yi-cyan);
}

.page-contact .ch-pill:hover {
  border-color: var(--yi-violet);
  color: var(--yi-text);
}

.page-contact #pc-ch-member:checked ~ .ch-pills [for="pc-ch-member"],
.page-contact #pc-ch-biz:checked ~ .ch-pills [for="pc-ch-biz"] {
  border-color: var(--yi-cyan);
  background: var(--pc-cyan-soft);
  color: var(--yi-text);
  box-shadow: 0 0 0 1px rgba(34, 230, 255, 0.25), 0 0 30px -12px rgba(34, 230, 255, 0.7);
}

.page-contact .ch-radio:focus-visible ~ .ch-pills {
  outline: 2px solid var(--yi-cyan);
  outline-offset: 6px;
  border-radius: var(--yi-pill);
}

.page-contact #pc-ch-member:checked ~ .ch-panels .ch-panel--biz,
.page-contact #pc-ch-biz:checked ~ .ch-panels .ch-panel--member {
  display: none;
}

.page-contact .ch-panel {
  padding: clamp(18px, 3.2vw, 28px);
  border: 1px solid var(--pc-panel-line);
  border-radius: var(--yi-radius-lg);
  background: linear-gradient(180deg, rgba(26, 16, 51, 0.88), rgba(7, 8, 13, 0.62));
}

.page-contact .ch-panel h3 {
  margin: 0 0 18px;
  font-size: clamp(19px, 3.4vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--yi-text);
}

.page-contact .ch-panel__grid {
  display: grid;
  gap: 22px;
}

.page-contact .pc-line {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px dashed var(--pc-dash);
}

.page-contact .pc-line:last-of-type {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .pc-line__label {
  font-family: var(--yi-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--yi-muted);
}

.page-contact .pc-line__value {
  font-family: var(--yi-mono);
  font-size: clamp(18px, 4.4vw, 26px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--yi-cyan);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .pc-line__desc {
  font-size: 15px;
  line-height: 1.72;
  color: var(--yi-muted);
}

.page-contact .pc-line__tip {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--yi-orange);
  font-size: 14px;
  line-height: 1.72;
  color: var(--yi-muted);
}

.page-contact .pc-figure {
  margin: 0;
  border: 1px solid var(--pc-panel-line);
  border-radius: var(--yi-radius);
  overflow: hidden;
  background: var(--yi-panel);
}

.page-contact .pc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-contact .pc-figure figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--pc-panel-line);
  font-family: var(--yi-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--yi-muted);
}

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

.page-contact .pc-collab__item {
  display: grid;
  gap: 7px;
  padding: 14px 16px;
  border: 1px solid rgba(61, 43, 107, 0.6);
  border-radius: var(--yi-radius);
  background: rgba(36, 22, 64, 0.55);
}

.page-contact .pc-collab__tag {
  justify-self: start;
  padding: 2px 10px;
  border: 1px solid rgba(255, 138, 42, 0.42);
  border-radius: var(--yi-pill);
  font-family: var(--yi-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yi-orange);
}

.page-contact .pc-collab__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--yi-muted);
}

.page-contact .pc-biznote {
  padding: 18px;
  border: 1px solid var(--pc-panel-line);
  border-radius: var(--yi-radius);
  background: rgba(26, 16, 51, 0.82);
  align-self: start;
}

.page-contact .pc-biznote__label {
  margin: 0 0 12px;
  font-family: var(--yi-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--yi-cyan);
}

.page-contact .pc-biznote__list {
  margin: 0;
  padding-left: 1.15em;
  display: grid;
  gap: 9px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--yi-muted);
}

/* ---------- 响应节奏 ---------- */
.page-contact .pc-sla__stats {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(20px, 3.6vw, 34px);
}

.page-contact .pc-stat {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--pc-panel-line);
  border-radius: var(--yi-radius);
  background: linear-gradient(140deg, rgba(36, 22, 64, 0.92), rgba(26, 16, 51, 0.58));
}

.page-contact .pc-stat__num {
  font-family: var(--yi-mono);
  font-size: clamp(24px, 5.4vw, 34px);
  letter-spacing: -0.02em;
  color: var(--yi-cyan);
}

.page-contact .pc-stat__label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--yi-muted);
}

.page-contact .pc-sla {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-contact .pc-sla__step {
  position: relative;
  padding-top: 18px;
}

.page-contact .pc-sla__step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--yi-cyan), rgba(123, 92, 255, 0.5), transparent);
}

.page-contact .pc-sla__idx {
  display: block;
  margin-bottom: 8px;
  font-family: var(--yi-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--yi-muted);
}

.page-contact .pc-sla__step h3 {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--yi-text);
}

.page-contact .pc-sla__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--yi-muted);
}

/* ---------- 地址与备案 ---------- */
.page-contact .pc-address__grid {
  display: grid;
  gap: 20px;
}

.page-contact .pc-address__media {
  margin: 0;
  border: 1px solid var(--pc-panel-line);
  border-radius: var(--yi-radius-lg);
  overflow: hidden;
  background: var(--yi-panel);
}

.page-contact .pc-address__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-contact .pc-address__info {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .pc-band {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--pc-panel-line);
  border-radius: var(--yi-radius);
  background: linear-gradient(120deg, rgba(36, 22, 64, 0.9), rgba(7, 8, 13, 0.5));
  transition: border-color 0.25s var(--yi-ease), box-shadow 0.25s var(--yi-ease),
    transform 0.25s var(--yi-ease);
}

.page-contact .pc-band:hover,
.page-contact .pc-band:focus-visible {
  border-color: var(--yi-cyan);
  box-shadow: 0 0 0 1px rgba(34, 230, 255, 0.28), 0 18px 44px -30px rgba(34, 230, 255, 0.8);
  transform: translateY(-1px);
  outline: none;
}

.page-contact .pc-band__key {
  font-family: var(--yi-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--yi-muted);
}

.page-contact .pc-band__val {
  font-size: 16px;
  line-height: 1.65;
  color: var(--yi-text);
  overflow-wrap: anywhere;
}

.page-contact .pc-band__val--mono {
  font-family: var(--yi-mono);
  letter-spacing: 0.02em;
}

/* ---------- 咨询前准备 ---------- */
.page-contact .pc-prep__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-prep__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 16px;
  border: 1px solid rgba(61, 43, 107, 0.6);
  border-radius: var(--yi-radius);
  background: rgba(26, 16, 51, 0.62);
}

.page-contact .pc-prep__box {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--yi-violet);
  border-radius: 6px;
  background: rgba(123, 92, 255, 0.14);
}

.page-contact .pc-prep__box::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 3px;
  background: var(--yi-cyan);
  opacity: 0.55;
}

.page-contact .pc-prep__title {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
  color: var(--yi-text);
}

.page-contact .pc-prep__desc {
  display: block;
  font-size: 14px;
  line-height: 1.68;
  color: var(--yi-muted);
}

/* ---------- 尾部 ---------- */
.page-contact .pc-tail {
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-contact .pc-tail__inner {
  display: grid;
  gap: 18px;
  padding-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--pc-dash);
}

.page-contact .pc-tail__text {
  margin: 0;
  font-size: clamp(18px, 3.4vw, 22px);
  letter-spacing: -0.01em;
  color: var(--yi-text);
}

.page-contact .pc-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .pc-sla__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .pc-prep__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 20px;
  }
}

@media (min-width: 820px) {
  .page-contact .pc-sla {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .pc-tail__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
    gap: 44px;
  }

  .page-contact .ch-panel__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 30px;
    align-items: start;
  }

  .page-contact .pc-address__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 30px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ch-pill,
  .page-contact .pc-band {
    transition: none;
  }

  .page-contact .pc-band:hover,
  .page-contact .pc-band:focus-visible {
    transform: none;
  }
}