/* ============================================================
   首页 page-home · 深夜天文台导航手册
   ============================================================ */

.page-home {
  display: block;
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-home .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  padding: 1.6rem 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--orbit);
}
.page-home .crumbs a {
  color: var(--orbit);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-home .crumbs a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.page-home .crumbs__sep {
  color: var(--ink-edge);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(1.75rem, 5vw, 3.5rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}
.page-home .hero__band {
  position: absolute;
  top: -12%;
  left: -25%;
  width: 150%;
  height: 78%;
  background:
    linear-gradient(118deg,
      rgba(124, 92, 255, .42) 0%,
      rgba(47, 224, 192, .16) 44%,
      rgba(5, 11, 31, 0) 72%);
  clip-path: polygon(0 0, 100% 4%, 100% 62%, 0 100%);
  pointer-events: none;
  z-index: 0;
}
.page-home .hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

.page-home .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--pulse);
  margin: 0 0 .5rem;
}

.page-home .hero__title {
  margin: .25rem 0 1.15rem;
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 8.4vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--white);
  transform: rotate(-1.4deg);
  transform-origin: left bottom;
}
.page-home .hero__title em {
  font-style: normal;
  color: var(--gold);
}
.page-home .hero__lead {
  max-width: 42ch;
  margin: 0;
  color: var(--stardust);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.page-home .hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.75rem;
  margin: 1.75rem 0 0;
  padding: 1.1rem 0 0;
  list-style: none;
  border-top: 2px solid var(--ink-edge);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--orbit);
}
.page-home .hero__facts b {
  color: var(--gold);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* 首屏视觉：斜切色块 + 图 */
.page-home .hero__visual {
  position: relative;
  min-width: 0;
}
.page-home .hero__slice {
  position: absolute;
  inset: 8% -6% -8% 12%;
  background: linear-gradient(150deg,
    rgba(124, 92, 255, .68) 0%,
    rgba(47, 224, 192, .3) 52%,
    rgba(246, 185, 59, .34) 100%);
  clip-path: polygon(16% 0, 100% 10%, 100% 100%, 0 86%);
  z-index: 0;
}
.page-home .hero__frame {
  position: relative;
  z-index: 1;
  margin: 0;
  clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
}
.page-home .hero__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 通用章节文字 ---------- */
.page-home h2 {
  margin: .6rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5.2vw, 2.7rem);
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--white);
}
.page-home .sec-lead {
  max-width: 48ch;
  margin: .9rem 0 0;
  color: var(--stardust);
  opacity: .88;
  font-size: 1.0625rem;
  line-height: 1.8;
}
.page-home .panel {
  padding: clamp(1.5rem, 4.4vw, 2.9rem);
}
.page-home .panel__index {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.page-home .panel__index::after {
  content: "";
  width: 42px;
  height: 2px;
  background: var(--gold);
}

/* ---------- 四条入口 ---------- */
.page-home .ways__rail {
  display: none;
}
.page-home .ways {
  display: grid;
  gap: 1.1rem;
  margin-top: 2rem;
}
.page-home .way {
  --c: var(--orbit);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
  padding: 1.5rem 1.35rem 1.6rem;
  background: var(--ink-void);
  border: 2px solid var(--ink-edge);
  box-shadow: 6px 6px 0 rgba(34, 48, 92, .7);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
}
.page-home .way::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--c);
}
.page-home .way:hover {
  transform: translateY(-6px);
  border-color: var(--c);
  box-shadow: 6px 14px 0 rgba(34, 48, 92, .85), 0 0 26px -6px var(--c);
}
.page-home .way--pulse  { --c: var(--pulse); }
.page-home .way--coral  { --c: var(--coral); }
.page-home .way--nebula { --c: var(--nebula); }
.page-home .way--gold   { --c: var(--gold); }

.page-home .way__head {
  display: flex;
  align-items: center;
  gap: .55rem;
}
.page-home .way__head .mono {
  color: var(--orbit);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.page-home .way__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c);
  box-shadow: 0 0 12px var(--c);
}
.page-home .way h3 {
  margin: .95rem 0 .6rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-home .way p {
  margin: 0 0 1.1rem;
  color: var(--stardust);
  opacity: .84;
  font-size: .95rem;
  line-height: 1.78;
}
.page-home .way__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
  margin-top: auto;
  font-family: var(--font-mono);
}
.page-home .way__meta .mono-tag {
  border-color: var(--c);
  color: var(--c);
}
.page-home .way__ver {
  color: var(--orbit);
  font-size: 12px;
  letter-spacing: .1em;
}
.page-home .way .btn {
  margin-top: 1.1rem;
}

/* ---------- 案例合集 ---------- */
.page-home .cases {
  display: grid;
  gap: 2rem;
  align-items: center;
}
.page-home .chips {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}
.page-home .chips li {
  padding: .38rem .72rem;
  border: 1px solid var(--ink-edge);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--stardust);
}
.page-home .stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1rem;
  margin-top: 1.6rem;
}
.page-home .stat {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: .9rem 1rem;
  background: var(--ink-void);
  border-left: 4px solid var(--gold);
}
.page-home .stat__num {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  color: var(--gold);
}
.page-home .stat__label {
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--orbit);
}
.page-home .cases__figure {
  margin: 0;
}

/* ---------- 帮助文档 ---------- */
.page-home .help-grid {
  display: grid;
  gap: 2rem;
}
.page-home .help-grid__figure {
  margin: 0;
}
.page-home .accordion {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin-top: 1.6rem;
}
.page-home .accordion__item {
  background: var(--ink-void);
  border: 2px solid var(--ink-edge);
  transition: border-color .25s var(--ease);
}
.page-home .accordion__item.is-open {
  border-color: var(--pulse);
}
.page-home .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1rem 1.1rem;
  background: none;
  border: 0;
  color: var(--stardust);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  text-align: left;
  cursor: pointer;
}
.page-home .accordion__trigger:hover {
  color: var(--white);
}
.page-home .accordion__icon {
  flex: none;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--pulse);
  transition: transform .25s var(--ease);
}
.page-home .accordion__item.is-open .accordion__icon {
  transform: rotate(45deg);
}
.page-home .accordion__inner {
  padding: 0 1.1rem 1.15rem;
}
.page-home .accordion__inner p {
  margin: 0;
  color: var(--stardust);
  opacity: .82;
  font-size: .9375rem;
  line-height: 1.78;
}
.page-home .help-grid .btn-row {
  margin-top: 1.6rem;
}

/* ---------- 换设备 ---------- */
.page-home .switch {
  display: grid;
  gap: 2rem;
}
.page-home .switch__figure {
  margin: 0;
}
.page-home .steps {
  counter-reset: step;
  display: grid;
  gap: 1.05rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}
.page-home .steps li {
  counter-increment: step;
  position: relative;
  padding-left: 3.2rem;
  color: var(--stardust);
  opacity: .9;
  font-size: .9688rem;
  line-height: 1.75;
}
.page-home .steps li::before {
  content: "0" counter(step);
  position: absolute;
  left: 0;
  top: 0;
  padding: .22rem .4rem;
  border: 2px solid var(--ink-edge);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold);
}
.page-home .switch .btn-row {
  margin-top: 1.6rem;
}

/* ---------- 联系与指引 ---------- */
.page-home .panel--contact {
  border-color: var(--gold);
  box-shadow: 8px 8px 0 rgba(246, 185, 59, .22);
}
.page-home .contact-grid {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.9rem;
}
.page-home .contact-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-home .contact-list li {
  display: grid;
  gap: .35rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--ink-edge);
}
.page-home .contact-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-home .contact-list .mono {
  color: var(--orbit);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.page-home .contact-link {
  color: var(--stardust);
  font-size: 1rem;
  line-height: 1.7;
  text-decoration: none;
  word-break: break-word;
}
.page-home a.contact-link:hover {
  color: var(--gold);
  text-decoration: underline;
}
.page-home .callout {
  padding: 1.4rem;
  background: var(--ink-void);
  border: 2px solid var(--ink-edge);
  border-top: 4px solid var(--gold);
  box-shadow: 6px 6px 0 rgba(34, 48, 92, .7);
}
.page-home .callout .mono {
  display: block;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.page-home .callout p {
  margin: .85rem 0 1.15rem;
  color: var(--stardust);
  opacity: .86;
  font-size: .9375rem;
  line-height: 1.78;
}
.page-home .contact-foot {
  margin: 1.9rem 0 0;
  padding-top: 1.1rem;
  border-top: 2px solid var(--ink-edge);
  color: var(--orbit);
  font-size: 12px;
  letter-spacing: .08em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .ways {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-home .hero__inner {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
  }
  .page-home .hero__visual {
    margin-right: -2%;
  }
  .page-home .cases {
    grid-template-columns: 1.25fr 1fr;
  }
  .page-home .help-grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }
  .page-home .switch {
    grid-template-columns: 1fr 1.08fr;
    align-items: center;
  }
  .page-home .contact-grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-home .ways {
    position: relative;
    margin-top: 2.6rem;
  }
  .page-home .ways__rail {
    display: block;
    position: relative;
    height: 2px;
    margin: 2.4rem 0 -1.2rem;
    background: linear-gradient(90deg, var(--pulse), var(--coral), var(--nebula), var(--gold));
  }
  .page-home .ways__rail::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 10px;
    height: 10px;
    margin: -5px 0 0 -5px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 14px var(--gold);
  }
}

@media (max-width: 520px) {
  .page-home .hero__title {
    transform: none;
  }
  .page-home .hero__facts {
    gap: .5rem 1.1rem;
    font-size: 11px;
  }
  .page-home .stat__num {
    font-size: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero__title,
  .page-home .way,
  .page-home .way:hover {
    transform: none;
    transition: none;
  }
}
</main>