/* ===== 联系页：斜切联系台 + 连续说明画布 ===== */

.page-contact {
  position: relative;
  background: var(--c-midnight);
  color: var(--c-silver);
  overflow-x: clip;
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(0.75rem, 2vw, 1.25rem);
}

.page-contact .prose {
  max-width: 42em;
  line-height: 1.75;
  color: var(--c-silver);
}

.page-contact .prose a,
.page-contact .prep-privacy a,
.page-contact .response-copy a {
  color: var(--c-neon);
  text-decoration: none;
  border-bottom: 1px solid var(--line-neon);
}

.page-contact .section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.6vw, 2.375rem);
  line-height: 1.14;
  letter-spacing: 0.05em;
  color: var(--c-white);
  margin: 0.35rem 0 0.75rem;
}

.page-contact .section-lede {
  max-width: 42em;
  font-size: clamp(0.9375rem, 2.3vw, 1.0625rem);
  line-height: 1.75;
  color: var(--c-silver);
}

/* ---------- 首屏联系台 ---------- */

.page-contact .contact-stage {
  position: relative;
  margin-top: clamp(0.5rem, 2vw, 1rem);
  padding: clamp(1.75rem, 5vw, 3.75rem) 0 clamp(2.5rem, 7vw, 5rem);
  background: linear-gradient(180deg, var(--c-blue) 0%, var(--c-midnight) 100%);
  overflow: hidden;
}

.page-contact .contact-stage::before {
  content: "";
  position: absolute;
  inset: -14% -18%;
  background:
    radial-gradient(56% 60% at 16% 22%, rgba(25, 245, 208, 0.15), transparent 70%),
    radial-gradient(50% 56% at 88% 80%, rgba(139, 92, 255, 0.16), transparent 72%),
    radial-gradient(40% 44% at 70% 10%, rgba(255, 106, 26, 0.1), transparent 74%);
  transform: skewY(var(--skew));
  pointer-events: none;
}

.page-contact .contact-stage::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-neon), transparent);
}

.page-contact .contact-stage__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4.5vw, 3.25rem);
}

@media (min-width: 1024px) {
  .page-contact .contact-stage__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
}

/* 联系卡 */

.page-contact .contact-card {
  position: relative;
  padding: clamp(1.25rem, 3vw, 1.9rem);
  background: linear-gradient(158deg, rgba(20, 27, 38, 0.95) 0%, rgba(11, 27, 51, 0.96) 100%);
  border: 1px solid var(--line-neon);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  filter: drop-shadow(0 0 20px rgba(25, 245, 208, 0.22));
}

.page-contact .contact-card__eyebrow {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.page-contact .readout {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.8rem 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .readout__label {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-silver-dim);
}

.page-contact .readout__value {
  font-family: var(--font-data);
  font-size: clamp(1rem, 3.4vw, 1.3125rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--c-neon);
  text-decoration: none;
  text-shadow: 0 0 14px rgba(25, 245, 208, 0.42);
  word-break: break-word;
}

.page-contact .readout__value--static {
  color: var(--c-white);
  text-shadow: none;
  font-size: clamp(0.9375rem, 3vw, 1.125rem);
}

.page-contact .contact-card__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  margin: 1rem 0 0;
}

.page-contact .contact-card__jump a {
  font-size: 0.8125rem;
  color: var(--c-silver-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.page-contact .contact-card__jump a:hover,
.page-contact .contact-card__jump a:focus-visible {
  color: var(--c-neon);
  border-bottom-color: var(--line-neon);
}

.page-contact .contact-card__media {
  margin: clamp(1.1rem, 3vw, 1.6rem) 0 0;
}

/* 首屏右侧叙述 */

.page-contact .contact-intro {
  max-width: 48em;
}

.page-contact .contact-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.4vw, 4rem);
  line-height: 1.04;
  letter-spacing: 0.045em;
  color: var(--c-white);
  margin: 0.5rem 0 1rem;
  text-shadow: 0 0 30px rgba(25, 245, 208, 0.22);
}

.page-contact .contact-intro .section-lede {
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  max-width: 40em;
}

.page-contact .intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .intro-tags li {
  padding: 0.4rem 0.85rem;
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
  color: var(--c-silver);
  background: rgba(20, 27, 38, 0.7);
  border: 1px solid var(--line);
  border-left: 2px solid var(--c-violet);
}

.page-contact .intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.25rem, 3vw, 1.9rem);
}

/* ---------- 通用连续画布区块 ---------- */

.page-contact .band {
  position: relative;
  padding: clamp(2.5rem, 7vw, 4.75rem) 0;
  border-top: 1px solid var(--line);
}

.page-contact .band--office {
  background: linear-gradient(180deg, var(--c-graphite) 0%, var(--c-midnight) 100%);
}

.page-contact .band--prepare {
  background: linear-gradient(180deg, var(--c-midnight) 0%, var(--c-graphite) 100%);
}

.page-contact .band--network {
  background: var(--c-midnight);
}

.page-contact .band--response {
  background: linear-gradient(180deg, var(--c-blue) 0%, var(--c-midnight) 100%);
}

/* ---------- 客服通道 ---------- */

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--line);
}

@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .channel {
  position: relative;
  padding: 1.6rem 1.3rem 1.45rem;
  background: linear-gradient(180deg, rgba(20, 27, 38, 0.92) 0%, rgba(6, 10, 18, 0.85) 100%);
  border-top: 2px solid var(--line-strong);
}

.page-contact .channel:nth-child(1) {
  border-top-color: var(--c-orange);
}

.page-contact .channel:nth-child(2) {
  border-top-color: var(--c-neon);
}

.page-contact .channel:nth-child(3) {
  border-top-color: var(--c-violet);
}

.page-contact .channel__no {
  display: block;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  color: var(--c-silver-dim);
  margin-bottom: 0.6rem;
}

.page-contact .channel__title {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 3.4vw, 1.375rem);
  letter-spacing: 0.04em;
  line-height: 1.3;
  color: var(--c-white);
  margin: 0 0 0.6rem;
}

.page-contact .channel__text {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-silver);
}

.page-contact .channel__link {
  display: inline-block;
  font-size: 0.875rem;
  letter-spacing: 0.03em;
  color: var(--c-neon);
  text-decoration: none;
  border-bottom: 1px solid var(--line-neon);
  padding-bottom: 2px;
}

.page-contact .channel__link:hover,
.page-contact .channel__link:focus-visible {
  color: var(--c-white);
}

/* ---------- 办公信息 ---------- */

.page-contact .office-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
}

@media (min-width: 900px) {
  .page-contact .office-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-contact .office-address {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0;
  padding: 0.2rem 0 0.2rem 1.1rem;
  border-left: 2px solid var(--c-orange);
  font-style: normal;
}

.page-contact .office-address__city {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  color: var(--c-silver-dim);
}

.page-contact .office-address__line {
  font-family: var(--font-data);
  font-size: clamp(1rem, 3vw, 1.3125rem);
  line-height: 1.5;
  color: var(--c-white);
}

.page-contact .office-aside {
  padding: 1.4rem 1.3rem 1.6rem;
  background: rgba(20, 27, 38, 0.85);
  border-left: 3px solid var(--c-violet);
}

.page-contact .office-aside__label {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-violet);
}

.page-contact .office-aside__text {
  margin: 0 0 1.1rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-silver);
}

/* ---------- 商务合作 ---------- */

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

@media (min-width: 900px) {
  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-contact .partner-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
}

.page-contact .partner-list li {
  padding: 1.15rem 1.2rem;
  background: rgba(6, 10, 18, 0.72);
}

.page-contact .partner-list__tag {
  display: inline-block;
  margin-bottom: 0.5rem;
  padding: 0.2rem 0.6rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--c-midnight);
  background: var(--c-orange);
}

.page-contact .partner-list p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-silver);
}

.page-contact .partner-brief {
  padding: 1.5rem 1.35rem 1.7rem;
  background: linear-gradient(150deg, rgba(11, 27, 51, 0.95) 0%, rgba(20, 27, 38, 0.92) 100%);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--c-neon);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-contact .partner-brief__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: 1.1875rem;
  letter-spacing: 0.06em;
  color: var(--c-white);
}

.page-contact .partner-brief__text {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-silver);
}

/* ---------- 提交问题前准备 ---------- */

.page-contact .prep-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
}

@media (min-width: 700px) {
  .page-contact .prep-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-contact .prep-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .prep-steps li {
  padding: 1.35rem 1.2rem 1.5rem;
  background: rgba(20, 27, 38, 0.9);
  border-top: 2px solid var(--line-strong);
}

.page-contact .prep-steps__no {
  display: block;
  font-family: var(--font-data);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-orange);
  margin-bottom: 0.7rem;
}

.page-contact .prep-steps h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  letter-spacing: 0.04em;
  line-height: 1.35;
  color: var(--c-white);
  margin: 0 0 0.5rem;
}

.page-contact .prep-steps p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--c-silver);
}

.page-contact .prep-filter {
  margin-top: clamp(1.75rem, 4.5vw, 2.75rem);
}

.page-contact .prep-filter__hint {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-silver-dim);
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: clamp(1rem, 3vw, 1.5rem);
}

.page-contact .filter-btn {
  min-height: 44px;
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--c-silver);
  background: rgba(20, 27, 38, 0.85);
  border: 1px solid var(--line-strong);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .filter-btn:hover,
.page-contact .filter-btn:focus-visible {
  color: var(--c-white);
  border-color: var(--line-neon);
}

.page-contact .filter-btn.is-active {
  color: var(--c-midnight);
  background: var(--c-neon);
  border-color: var(--c-neon);
  box-shadow: var(--glow-neon);
}

.page-contact .prep-notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
}

@media (min-width: 760px) {
  .page-contact .prep-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .prep-note {
  padding: 1.2rem 1.2rem 1.35rem;
  background: rgba(6, 10, 18, 0.78);
  border-left: 2px solid var(--c-neon);
}

.page-contact .prep-note h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--c-white);
  margin: 0 0 0.45rem;
}

.page-contact .prep-note p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--c-silver);
}

.page-contact .prep-note.is-filtered-out,
.page-contact .prep-steps li.is-filtered-out {
  display: none;
}

.page-contact .prep-privacy {
  margin: 1.25rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--c-silver-dim);
}

/* ---------- 区域网络支持 ---------- */

.page-contact .network-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: center;
}

@media (min-width: 980px) {
  .page-contact .network-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }
}

.page-contact .network-media {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--c-neon);
}

.page-contact .network-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .network-list {
  display: grid;
  gap: 1px;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0;
  padding: 0;
  list-style: none;
  background: var(--line);
}

.page-contact .network-list li {
  display: grid;
  gap: 0.35rem;
  padding: 0.9rem 1rem;
  background: rgba(20, 27, 38, 0.85);
}

@media (min-width: 620px) {
  .page-contact .network-list li {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.9rem;
  }
}

.page-contact .network-list__key {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  color: var(--c-neon);
}

.page-contact .network-list__val {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-silver);
}

/* ---------- 响应节奏 ---------- */

.page-contact .response-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(1.25rem, 3.5vw, 2rem);
  background: var(--line-neon);
}

@media (min-width: 720px) {
  .page-contact .response-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .response-stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.35rem 1.25rem 1.5rem;
  background: rgba(6, 10, 18, 0.85);
  border-bottom: 2px solid var(--c-neon);
}

.page-contact .gauge-value {
  font-family: var(--font-data);
  font-size: clamp(1.625rem, 5vw, 2.25rem);
  font-weight: 700;
  line-height: 1;
  color: var(--c-neon);
  text-shadow: 0 0 18px rgba(25, 245, 208, 0.4);
}

.page-contact .gauge-label {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--c-silver-dim);
}

.page-contact .response-copy {
  max-width: 46em;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

.page-contact .response-copy p {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--c-silver);
}

.page-contact .response-copy p:last-child {
  margin-bottom: 0;
}

/* ---------- 无障碍与降级 ---------- */

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .filter-btn {
    transition: none;
  }
}