/* ========== 联系通道 · 页面专属样式 ========== */
.page-contact {
  position: relative;
  overflow-x: clip;
  background:
    radial-gradient(ellipse at 88% 0%, rgba(0, 212, 255, 0.07), transparent 42%),
    radial-gradient(ellipse at 5% 45%, rgba(57, 255, 20, 0.04), transparent 32%);
}

.page-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--sk-green) 0%, var(--sk-border) 22%, var(--sk-blue) 60%, var(--sk-border) 100%);
  opacity: 0.7;
  z-index: 3;
  pointer-events: none;
}

.page-contact .sk-section-heading {
  margin-bottom: 20px;
}

/* ===== Hero 首屏目录预览 ===== */
.page-contact-hero {
  position: relative;
}

.page-contact-hero::after {
  content: "";
  position: absolute;
  top: -40px;
  right: -12%;
  width: 52%;
  height: 130%;
  background: repeating-linear-gradient(-45deg, transparent 0 14px, rgba(57, 255, 20, 0.03) 14px 16px, transparent 16px 32px);
  pointer-events: none;
  z-index: 0;
}

.page-contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  position: relative;
  z-index: 1;
}

.page-contact-hero__main {
  min-width: 0;
}

.page-contact-hero__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-contact-hero__line {
  display: block;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--sk-blue), var(--sk-border) 72%, transparent);
}

.page-contact-hero__status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact-hero__title {
  font-family: var(--sk-font-display);
  font-size: clamp(2.4rem, 6vw + 0.4rem, 5rem);
  line-height: 1;
  letter-spacing: 0.01em;
  margin: 0 0 18px;
  max-width: 12ch;
}

.page-contact-hero__lead {
  margin: 0 0 28px;
  max-width: 680px;
  font-size: 1rem;
  line-height: 1.75;
  padding-left: 16px;
  border-left: 3px solid var(--sk-green);
}

.page-contact-hero__toc {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  max-width: 680px;
}

.page-contact-hero__toc-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  background: rgba(27, 27, 54, 0.62);
  border: 1px solid var(--sk-border);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  color: var(--sk-text);
  text-decoration: none;
  transition: border-color 220ms, background 220ms, transform 220ms;
}

.page-contact-hero__toc-item:hover,
.page-contact-hero__toc-item:focus-visible {
  border-color: var(--sk-blue);
  background: rgba(0, 212, 255, 0.07);
  transform: translateY(-2px);
}

.page-contact-hero__toc-top {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.94rem;
}

.page-contact-hero__toc-top .sk-text-mono {
  color: var(--sk-blue);
  font-size: 0.8rem;
}

.page-contact-hero__toc-item small {
  color: var(--sk-muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* ===== 01 沟通渠道 ===== */
.page-contact-channels {
  position: relative;
}

.page-contact-channels::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 18%, rgba(0, 212, 255, 0.045) 40%, transparent 62%),
    radial-gradient(circle at 85% 30%, rgba(57, 255, 20, 0.05), transparent 24%);
  z-index: 0;
}

.page-contact-channels__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  position: relative;
  z-index: 1;
}

.page-contact-channels__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 200px;
  padding: 22px 20px;
  transition: transform 300ms, box-shadow 300ms, border-color 300ms;
}

.page-contact-card--mail {
  min-height: 210px;
}

.page-contact-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--sk-shadow);
}

.page-contact-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.page-contact-card__top .sk-text-mono {
  color: var(--sk-muted);
  font-size: 0.82rem;
}

.page-contact-card__use {
  flex: 1;
  margin: 0;
  color: var(--sk-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

.page-contact-card__big {
  display: inline-block;
  max-width: 100%;
  align-self: flex-start;
  font-family: var(--sk-font-mono);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  color: var(--sk-text);
  text-decoration: none;
  word-break: break-all;
  padding-bottom: 3px;
  border-bottom: 1px dashed var(--sk-blue);
  transition: color 220ms, border-color 220ms;
}

.page-contact-card__big:hover,
.page-contact-card__big:focus-visible {
  color: var(--sk-blue);
  border-color: var(--sk-blue);
}

.page-contact-card__big--tel {
  font-size: clamp(1.28rem, 2vw, 1.8rem);
  letter-spacing: 0.02em;
  color: var(--sk-green);
  border-bottom-color: transparent;
}

.page-contact-card__big--tel:hover,
.page-contact-card__big--tel:focus-visible {
  color: var(--sk-text);
}

.page-contact-card__big--addr {
  font-size: 1rem;
  color: var(--sk-blue);
  border-bottom: none;
  cursor: copy;
  user-select: all;
  -webkit-user-select: all;
}

.page-contact-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--sk-border);
  font-size: 0.82rem;
}

.page-contact-card__go {
  color: var(--sk-blue);
  white-space: nowrap;
}

/* ===== 信息图 ===== */
.page-contact-figure {
  position: relative;
  margin: 0;
  padding: 10px;
  background: var(--sk-bg-panel);
  border: 1px solid var(--sk-border);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-contact-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact-figure figcaption {
  padding: 12px 6px 4px;
  font-family: var(--sk-font-mono);
  font-size: 0.76rem;
  color: var(--sk-muted);
}

/* ===== 02 服务时间 + 03 常见主题 ===== */
.page-contact-service-section__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  position: relative;
  z-index: 1;
}

.page-contact-calendar {
  padding: 8px 18px 18px;
}

.page-contact-calendar__scroll {
  overflow-x: auto;
  padding-top: 18px;
}

.page-contact-calendar__inner {
  min-width: 560px;
}

.page-contact-calendar__rail {
  position: relative;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--sk-green), var(--sk-blue) 55%, var(--sk-border) 90%);
}

.page-contact-calendar__rail::before,
.page-contact-calendar__rail::after {
  content: "";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--sk-bg-panel);
  border: 2px solid var(--sk-green);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.35);
}

.page-contact-calendar__rail::after {
  right: 0;
  border-color: var(--sk-blue);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.35);
}

.page-contact-calendar__days {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin: 0;
  padding: 14px 0 10px;
}

.page-contact-calendar__day {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 4px;
  border-radius: 8px;
  cursor: default;
  transition: background 220ms, box-shadow 220ms;
}

.page-contact-calendar__day:hover,
.page-contact-calendar__day:focus-within {
  background: rgba(57, 255, 20, 0.06);
  box-shadow: inset 0 0 0 1px rgba(57, 255, 20, 0.24);
}

.page-contact-calendar__name {
  font-size: 0.82rem;
  font-weight: 600;
}

.page-contact-calendar__time {
  font-family: var(--sk-font-mono);
  font-size: 0.68rem;
  color: var(--sk-muted);
}

.page-contact-calendar__note {
  margin: 14px 0 0;
  padding: 14px 14px 12px;
  border-left: 3px solid var(--sk-green);
  background: rgba(57, 255, 20, 0.05);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-contact-figure--week {
  margin-top: 18px;
}

/* ===== 主题列表 ===== */
.page-contact-topics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact-topic {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: start;
  padding: 18px 16px;
  background: var(--sk-bg-panel);
  border: 1px solid var(--sk-border);
  border-left: 3px solid var(--sk-border);
  color: var(--sk-text);
  text-decoration: none;
  transition: background 220ms, border-color 220ms, transform 220ms;
}

.page-contact-topic:hover,
.page-contact-topic:focus-visible {
  border-left-color: var(--sk-green);
  transform: translateX(4px);
  background: rgba(0, 212, 255, 0.04);
}

.page-contact-topic__num {
  padding-top: 2px;
  color: var(--sk-blue);
  font-size: 0.84rem;
}

.page-contact-topic__body strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 5px;
}

.page-contact-topic__body small {
  display: block;
  color: var(--sk-muted);
  font-size: 0.84rem;
  line-height: 1.6;
}

.page-contact-topic__arrow {
  color: var(--sk-green);
  font-size: 1.2rem;
  transition: transform 220ms;
}

.page-contact-topic:hover .page-contact-topic__arrow {
  transform: translateX(4px);
}

.page-contact-topics__more {
  margin-top: 16px;
  text-align: right;
}

/* ===== 响应式增强 ===== */
@media (min-width: 560px) {
  .page-contact-hero__toc {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 640px) {
  .page-contact-channels__cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .page-contact-card--mail {
    grid-column: 1 / -1;
  }
}

@media (min-width: 768px) {
  .page-contact-hero__grid {
    grid-template-columns: 1fr 180px;
    gap: 40px;
  }

  .page-contact-hero__main {
    order: 1;
  }

  .page-contact-hero__aside {
    order: 2;
  }
}

@media (min-width: 1024px) {
  .page-contact-channels__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 24px;
    align-items: stretch;
  }

  .page-contact-figure--map {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-contact-service-section__layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
    align-items: start;
  }
}

/* ===== 降低动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-contact .page-contact-card,
  .page-contact .page-contact-topic,
  .page-contact .page-contact-figure,
  .page-contact .page-contact-hero__toc-item {
    transition: none;
    transform: none;
  }
}