.page-home {
  --home-grid-line: rgba(215, 225, 234, .055);
  --home-line-ink: rgba(5, 10, 15, .12);
}

/* ---------- 通用头部（深色） ---------- */
.page-home .head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: .75rem 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--hair-strong);
}

.page-home .head__title {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5.4vw, 2.4rem);
  line-height: 1.14;
  letter-spacing: .005em;
  color: var(--paper);
  max-width: 34ch;
}

.page-home .head__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home .head__title--paper { color: var(--ink); }
.page-home .head__note--paper { color: rgba(5, 10, 15, .5); }
.page-home .head--paper { border-bottom-color: var(--home-line-ink); }

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--home-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--home-grid-line) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 82%);
  pointer-events: none;
}

.page-home .hero__shell {
  position: relative;
  z-index: 1;
}

.page-home .hero__rail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .5rem .9rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home .hero__rail-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(46, 212, 122, .16);
}

.page-home .hero__rail-rev {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 106, 42, .5);
}

.page-home .hero__rail-rev:hover { color: var(--amber); }

.page-home .hero__grid {
  display: grid;
  gap: 2rem;
  margin-top: clamp(1.75rem, 4vw, 3rem);
}

.page-home .hero__lead h1 {
  margin: .6rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 8.4vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -.005em;
  color: var(--paper);
  max-width: 20ch;
}

.page-home .hero__intro {
  margin: 1.25rem 0 0;
  max-width: 36rem;
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.8;
  color: rgba(215, 225, 234, .8);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.75rem;
}

.page-home .hero__chapters {
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(18, 58, 90, .6), rgba(11, 31, 51, .3));
  padding: 1.2rem 1.15rem 1rem;
  box-shadow: var(--shadow-panel);
}

.page-home .hero__chapters-title {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home .hero__chapters-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .hero__chapters-list li + li { border-top: 1px dashed var(--hair); }

.page-home .hero__chapters-list a {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding: .6rem .5rem;
  border-radius: var(--radius-md);
  color: var(--silver);
  text-decoration: none;
  font-size: .92rem;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.page-home .hero__chapters-list a:hover {
  background: rgba(255, 106, 42, .1);
  color: var(--paper);
}

.page-home .hero__chapters-no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-home .hero__media { margin: clamp(2rem, 5vw, 3.25rem) 0 0; }

/* ---------- 图片 ---------- */
.page-home .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 十二入口索引墙 ---------- */
.page-home .index { position: relative; padding: clamp(2.5rem, 6vw, 5rem) 0; }

.page-home .index__jump {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 1.5rem 0 1.75rem;
}

.page-home .index__jump-link {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  padding: .45rem .85rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hair-strong);
  color: var(--silver);
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease), background-color .2s var(--ease);
}

.page-home .index__jump-link:hover {
  border-color: var(--signal);
  color: var(--signal);
  background: var(--signal-soft);
}

.page-home .index__wall {
  display: grid;
  gap: 1rem;
}

.page-home .index__group {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.1rem 1.25rem;
  background: linear-gradient(180deg, rgba(18, 58, 90, .5), rgba(11, 31, 51, .28));
  box-shadow: var(--shadow-panel);
}

.page-home .index__group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--signal), rgba(255, 106, 42, 0));
}

.page-home .index__group-head {
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-bottom: .85rem;
}

.page-home .index__group-no {
  display: grid;
  place-items: center;
  width: 1.85rem;
  height: 1.85rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hair-strong);
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--link);
}

.page-home .index__group-title {
  margin: 0;
  flex: 1 1 auto;
  font-family: var(--font-display);
  font-size: 1.08rem;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-home .index__entries { display: grid; gap: .35rem; }

.page-home .index__entry {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .25rem .75rem;
  padding: .7rem .7rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}

.page-home .index__entry:hover {
  background: rgba(91, 192, 235, .08);
  border-color: var(--hair-strong);
  transform: translateX(2px);
}

.page-home .index__entry-no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--signal);
  padding-top: .18rem;
}

.page-home .index__entry-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .35rem .6rem;
}

.page-home .index__entry-title {
  font-size: .96rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .index__entry-desc {
  display: block;
  margin-top: .22rem;
  font-size: .82rem;
  line-height: 1.6;
  color: rgba(215, 225, 234, .66);
}

/* ---------- 公告时间轴 ---------- */
.page-home .alerts { padding: clamp(2.5rem, 6vw, 5rem) 0; }

.page-home .alerts__grid {
  display: grid;
  gap: 2rem;
}

.page-home .alerts__timeline {
  margin: 1.75rem 0 0;
  padding: 0 0 0 1.4rem;
  list-style: none;
  border-left: 1px solid var(--hair-strong);
  display: grid;
  gap: 1rem;
}

.page-home .alerts__item { position: relative; }

.page-home .alerts__item::before {
  content: "";
  position: absolute;
  left: -1.78rem;
  top: 1.05rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(46, 212, 122, .13);
}

.page-home .alerts__item--pin::before {
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--signal-soft);
  animation: home-pulse 2.6s var(--ease) infinite;
}

@keyframes home-pulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--signal-soft); }
  50% { box-shadow: 0 0 0 9px rgba(255, 106, 42, .05); }
}

.page-home .alerts__details {
  border: 1px solid var(--hair);
  border-radius: var(--radius-md);
  background: rgba(18, 58, 90, .32);
  overflow: hidden;
}

.page-home .alerts__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem .8rem;
  padding: .85rem 1rem;
  cursor: pointer;
  list-style: none;
}

.page-home .alerts__summary::-webkit-details-marker { display: none; }

.page-home .alerts__time {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-home .alerts__head {
  flex: 1 1 12rem;
  font-size: .97rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .alerts__rev {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--link);
}

.page-home .alerts__toggle {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.page-home .alerts__toggle::before,
.page-home .alerts__toggle::after {
  content: "";
  position: absolute;
  background: var(--signal);
  border-radius: 2px;
  transition: transform .24s var(--ease);
}

.page-home .alerts__toggle::before { top: 6px; left: 0; width: 14px; height: 2px; }
.page-home .alerts__toggle::after { top: 0; left: 6px; width: 2px; height: 14px; }

.page-home .alerts__details[open] .alerts__toggle::after { transform: scaleY(0); }

.page-home .alerts__body {
  padding: 0 1rem 1.1rem;
  border-top: 1px dashed var(--hair);
}

.page-home .alerts__meta {
  margin: 1rem 0 0;
  display: grid;
  gap: .55rem;
}

.page-home .alerts__meta > div {
  display: grid;
  grid-template-columns: 5.25rem minmax(0, 1fr);
  gap: .75rem;
}

.page-home .alerts__meta dt {
  margin: 0;
  padding-top: .18rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home .alerts__meta dd {
  margin: 0;
  font-size: .9rem;
  line-height: 1.65;
  color: rgba(215, 225, 234, .84);
}

.page-home .alerts__body .btn { margin-top: 1rem; }
.page-home .alerts__media { margin: 0; }

/* ---------- 路线情报速览（浅色区） ---------- */
.page-home .intel { padding: clamp(2.5rem, 6vw, 5rem) 0; }

.page-home .intel__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-home .intel__media { margin: 0; }

.page-home .intel__lead {
  margin: 1.1rem 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(5, 10, 15, .76);
}

.page-home .intel__legend {
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}

.page-home .intel__legend-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .7rem;
  padding: .7rem .85rem;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--home-line-ink);
}

.page-home .intel__swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  margin-top: .35rem;
}

.page-home .intel__swatch--signal { background: var(--signal); }
.page-home .intel__swatch--green { background: var(--green); }
.page-home .intel__swatch--link { background: var(--link); }
.page-home .intel__swatch--amber { background: var(--amber); }

.page-home .intel__legend-key {
  display: block;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(5, 10, 15, .5);
}

.page-home .intel__legend-val {
  display: block;
  margin-top: .1rem;
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink);
}

.page-home .intel__note {
  margin: 1.25rem 0 0;
  font-size: .88rem;
  line-height: 1.7;
  color: rgba(5, 10, 15, .62);
}

/* ---------- 大屏与移动端 ---------- */
.page-home .screens { padding: clamp(2.5rem, 6vw, 5rem) 0; }

.page-home .screens__grid {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.75rem;
}

.page-home .screens__media { margin: 0; }

.page-home .screens__panels {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-home .screens__panel {
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.2rem 1.2rem;
  background: linear-gradient(180deg, rgba(18, 58, 90, .5), rgba(11, 31, 51, .26));
}

.page-home .screens__panel-sub {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--link);
}

.page-home .screens__panel-title {
  margin: .35rem 0 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--paper);
}

.page-home .screens__list {
  margin: .85rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .45rem;
}

.page-home .screens__list li {
  position: relative;
  padding-left: 1.2rem;
  font-size: .88rem;
  line-height: 1.65;
  color: rgba(215, 225, 234, .8);
}

.page-home .screens__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62rem;
  width: 10px;
  height: 2px;
  background: var(--signal);
}

.page-home .screens__cta { justify-self: start; }

/* ---------- 品牌服务（浅色区） ---------- */
.page-home .services { padding: clamp(2.5rem, 6vw, 5rem) 0; }

.page-home .services__grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-home .services__card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: 1.15rem 1.2rem 1.3rem;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--home-line-ink);
}

.page-home .services__no {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--signal);
}

.page-home .services__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-home .services__desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(5, 10, 15, .68);
}

.page-home .services__card--accent {
  background: linear-gradient(150deg, var(--signal), #e2541b);
  border-color: transparent;
  box-shadow: 0 24px 48px -32px rgba(255, 106, 42, .8);
}

.page-home .services__no--light { color: rgba(255, 255, 255, .8); }
.page-home .services__title--light { color: #fff; }
.page-home .services__desc--light { color: rgba(255, 255, 255, .9); }

.page-home .services__link {
  margin-top: .35rem;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, .7);
  padding-bottom: .1rem;
}

.page-home .services__link:hover { border-bottom-color: #fff; }

/* ---------- 联系与备案 ---------- */
.page-home .contact { padding: clamp(2.5rem, 6vw, 5rem) 0; }

.page-home .contact__grid {
  display: grid;
  gap: 2rem;
}

.page-home .contact__lead {
  margin: 1.25rem 0 0;
  max-width: 44rem;
  font-size: .98rem;
  line-height: 1.85;
  color: rgba(215, 225, 234, .78);
}

.page-home .contact__cards {
  display: grid;
  gap: .85rem;
  margin-top: 1.5rem;
}

.page-home .contact__card {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--hair);
  background: rgba(18, 58, 90, .34);
}

.page-home .contact__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home .contact__val {
  margin: .4rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 3.4vw, 1.12rem);
  color: var(--paper);
  word-break: break-word;
}

.page-home .contact__hint {
  margin: .35rem 0 0;
  font-size: .82rem;
  line-height: 1.6;
  color: rgba(215, 225, 234, .6);
}

.page-home .contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-home .contact__side {
  padding: 1.2rem 1.2rem 1.35rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--hair);
  background: linear-gradient(180deg, rgba(18, 58, 90, .5), rgba(7, 21, 34, .5));
}

.page-home .contact__side-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home .contact__side-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}

.page-home .contact__side-list li {
  display: grid;
  gap: .15rem;
  padding-bottom: .7rem;
  border-bottom: 1px dashed var(--hair);
}

.page-home .contact__side-list li:last-child { border-bottom: 0; padding-bottom: 0; }

.page-home .contact__side-key {
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home .contact__side-val {
  font-size: .95rem;
  color: var(--paper);
  word-break: break-word;
}

.page-home .contact__side-note {
  margin: 1.1rem 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: rgba(215, 225, 234, .62);
}

.page-home .contact__side-links {
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .9rem;
}

.page-home .contact__side-links a {
  font-size: .84rem;
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid rgba(91, 192, 235, .35);
}

.page-home .contact__side-links a:hover { border-bottom-color: var(--link); }

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .intel__legend { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .contact__cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

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

@media (min-width: 960px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }

  .page-home .alerts__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .8fr);
    gap: clamp(2rem, 5vw, 3.5rem);
    align-items: start;
  }

  .page-home .intel__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-home .screens__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(1.5rem, 4vw, 2.75rem);
    align-items: start;
  }

  .page-home .contact__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    gap: clamp(2rem, 5vw, 3.5rem);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-home .index__wall { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-home .index__group--feature { grid-column: span 2; }
  .page-home .index__group--feature .index__entries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-home .services__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-home .intel__legend { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .alerts__item--pin::before { animation: none; }
  .page-home .index__entry:hover { transform: none; }
  .page-home .alerts__toggle::before,
  .page-home .alerts__toggle::after { transition: none; }
}