.page-home{
  --home-gap: clamp(16px, 3vw, 28px);
  background: var(--ink);
  color: var(--white);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
.page-home *,
.page-home *::before,
.page-home *::after{ box-sizing: border-box; }
.page-home h1,
.page-home h2,
.page-home h3,
.page-home h4{ margin: 0; font-weight: 800; line-height: 1.18; letter-spacing: -0.01em; }
.page-home p,
.page-home ul,
.page-home ol,
.page-home figure{ margin: 0; }
.page-home ul,
.page-home ol{ padding: 0; list-style: none; }

/* 顶部上下文 */
.page-home .home-context{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  padding-top: 18px;
}
.page-home .context-stamp{
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--grey);
}
.page-home .breadcrumb ol{ display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--grey); }
.page-home .breadcrumb li + li::before{ content: "/"; margin-right: 8px; color: var(--steel); }
.page-home .breadcrumb a{ color: var(--grey); text-decoration: none; border-bottom: 1px solid transparent; }
.page-home .breadcrumb a:hover{ color: var(--cyan); border-bottom-color: var(--cyan); }

/* 首屏 */
.page-home .hero{
  padding: clamp(18px, 3.5vw, 40px) 0 clamp(26px, 5vw, 56px);
  background:
    radial-gradient(circle at 88% 4%, rgba(56, 232, 224, 0.13), transparent 52%),
    radial-gradient(circle at 4% 26%, rgba(255, 106, 42, 0.10), transparent 46%);
}
.page-home .hero-grid{ display: grid; gap: var(--home-gap); grid-template-columns: 1fr; }
.page-home .hero-main{ display: grid; gap: 16px; align-content: start; }
.page-home .eyebrow{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-home .hero h1{
  font-size: clamp(30px, 6vw, 54px);
  letter-spacing: -0.02em;
  max-width: 16ch;
}
.page-home .hero-lead{
  font-size: clamp(16px, 1.8vw, 18px);
  color: rgba(238, 245, 255, 0.82);
  max-width: 52ch;
}

.page-home .feed-list{ display: grid; gap: 10px; margin-top: 4px; }
.page-home .feed-item{
  border: var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  padding: 13px 15px;
  display: grid;
  gap: 6px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.page-home .feed-item:hover,
.page-home .feed-item:focus-within{
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
  border-color: var(--cyan);
}
.page-home .feed-meta{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--grey);
}
.page-home .feed-title{ font-weight: 700; font-size: 16px; line-height: 1.5; }
.page-home .feed-more{ font-size: 14.5px; color: var(--grey); }

.page-home .btn-row{ display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
.page-home .btn-row .btn{ text-decoration: none; }

/* 右侧浮层卡片 */
.page-home .hero-cards{ display: grid; gap: var(--home-gap); align-content: start; }
.page-home .hcard{
  border: var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  padding: 16px 16px 18px;
  display: grid;
  gap: 12px;
}
.page-home .hcard--prob{ background: var(--panel-2); }
.page-home .hcard--index{ background: transparent; box-shadow: none; }
.page-home .hcard-head{ display: flex; align-items: center; gap: 10px; }
.page-home .hcard-num{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--cyan);
  padding: 2px 7px;
  font-weight: 700;
}
.page-home .hcard-title{ font-size: 17px; }
.page-home .hcard-note{ font-size: 14px; color: var(--grey); }
.page-home .hcard-link{ justify-self: start; text-decoration: none; }

.page-home .step-rail{ display: grid; gap: 10px; }
.page-home .step{ display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start; font-size: 14.5px; }
.page-home .step-num{
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--ink);
  background: var(--paper);
  padding: 1px 6px;
  line-height: 1.6;
}

.page-home .prob-list{ display: grid; gap: 2px; }
.page-home .prob-row{
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 10px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(45, 74, 102, 0.85);
  font-size: 14px;
}
.page-home .prob-label{ color: rgba(238, 245, 255, 0.86); }
.page-home .prob-value{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--lime);
  line-height: 1.1;
}
.page-home .prob-bar{
  grid-column: 1 / -1;
  display: block;
  height: 5px;
  background: rgba(45, 74, 102, 0.6);
}
.page-home .prob-bar i{ display: block; height: 100%; background: var(--lime); }
.page-home .refresh-chip{
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--grey);
  border-left: 3px solid var(--lime);
  padding-left: 9px;
}

.page-home .index-nav{ display: grid; gap: 1px; }
.page-home .index-nav a{
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 4px;
  font-size: 14px;
  color: rgba(238, 245, 255, 0.9);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 74, 102, 0.7);
  transition: color 140ms ease, padding-left 140ms ease;
}
.page-home .index-nav a:hover,
.page-home .index-nav a:focus-visible{ color: var(--cyan); padding-left: 10px; }
.page-home .index-num{ font-family: var(--mono); font-size: 11px; color: var(--cyan); }

/* 过渡带状图 */
.page-home .home-band{
  position: relative;
  border-top: var(--edge);
  border-bottom: var(--edge);
  overflow: hidden;
  margin-top: clamp(18px, 3vw, 34px);
}
.page-home .home-band img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(160px, 28vw, 320px);
  object-fit: cover;
  opacity: 0.5;
  filter: saturate(0.75);
}
.page-home .band-caption{
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px var(--gutter) 16px;
  background: linear-gradient(transparent, rgba(7, 12, 22, 0.94));
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(238, 245, 255, 0.9);
}

/* 章节 */
.page-home .section{ padding: clamp(30px, 5vw, 62px) 0; }
.page-home .section--alt{
  background: linear-gradient(180deg, rgba(15, 27, 45, 0.62), rgba(7, 12, 22, 0));
  border-top: 1px solid rgba(45, 74, 102, 0.55);
  border-bottom: 1px solid rgba(45, 74, 102, 0.55);
}
.page-home .section-head{ display: grid; gap: 10px; margin-bottom: clamp(18px, 3vw, 30px); }
.page-home .sec-num{
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--orange);
}
.page-home .section-title{ font-size: clamp(22px, 3.6vw, 34px); max-width: 22ch; }
.page-home .section-lede{ color: var(--grey); font-size: 16px; max-width: 64ch; }

.page-home .duo{ display: grid; gap: var(--home-gap); grid-template-columns: 1fr; }
.page-home .duo > *{ min-width: 0; }

.page-home .panel{
  border: var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  padding: clamp(16px, 2.4vw, 24px);
  display: grid;
  gap: 14px;
  align-content: start;
}
.page-home .panel--note{ background: var(--panel-2); }
.page-home .panel--aside{ background: transparent; box-shadow: var(--shadow-soft); }
.page-home .panel__head{ display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.page-home .panel__head h3{ font-size: 18px; }
.page-home .panel__index{
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--cyan);
  padding: 2px 7px;
}
.page-home .panel-foot{ font-size: 13.5px; color: var(--grey); }
.page-home .panel .btn{ justify-self: start; text-decoration: none; }

.page-home .change-list{ display: grid; gap: 14px; }
.page-home .change{
  display: grid;
  gap: 5px;
  padding: 2px 0 2px 14px;
  border-left: 3px solid var(--orange);
}
.page-home .change h4{ font-size: 16px; }
.page-home .change p{ font-size: 14.5px; color: rgba(238, 245, 255, 0.82); }
.page-home .change .impact{
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-home .notice-list{ display: grid; gap: 12px; }
.page-home .notice{
  display: grid;
  gap: 3px;
  padding-bottom: 11px;
  border-bottom: 1px dashed rgba(45, 74, 102, 0.8);
  font-size: 14.5px;
}
.page-home .notice-time{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--grey);
}
.page-home .path-note{
  font-size: 14px;
  background: rgba(255, 106, 42, 0.10);
  border: 1px solid rgba(255, 106, 42, 0.45);
  border-left-width: 4px;
  padding: 12px 13px;
  color: rgba(238, 245, 255, 0.92);
}

.page-home .aside-list{ display: grid; gap: 10px; }
.page-home .aside-list li{
  font-size: 14.5px;
  color: rgba(238, 245, 255, 0.85);
  padding-left: 16px;
  position: relative;
}
.page-home .aside-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

.page-home .stack{ display: grid; gap: var(--home-gap); align-content: start; }
.page-home .media-frame{
  display: block;
  border: var(--edge);
  background: var(--panel-2);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.page-home .media-frame img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .media-caption{
  padding: 9px 12px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--grey);
  border-top: 1px solid rgba(45, 74, 102, 0.7);
}

.page-home .step-cards{ display: grid; gap: var(--home-gap); }
.page-home .step-card{
  border: var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  padding: 16px;
  display: grid;
  gap: 6px;
}
.page-home .big-num{
  font-family: var(--mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}
.page-home .step-card h3{ font-size: 17px; }
.page-home .step-card p:last-child{ font-size: 14.5px; color: var(--grey); }

/* 概率章节 */
.page-home .prob-panel{
  border: var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  display: grid;
  gap: 0;
}
.page-home .prob-figure{ border: 0; border-bottom: var(--edge); box-shadow: none; }
.page-home .prob-body{
  padding: clamp(16px, 2.6vw, 26px);
  display: grid;
  gap: 14px;
  align-content: start;
}
.page-home .prob-list--large .prob-label{ font-size: 15px; }
.page-home .prob-list--large .prob-value{ font-size: 26px; }
.page-home .prob-list--large .prob-row{ padding: 12px 0; }
.page-home .metric-chips{ display: flex; flex-wrap: wrap; gap: 8px; }
.page-home .metric-chips li{
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--paper);
  border: 1px solid var(--steel);
  padding: 3px 9px;
}
.page-home .prob-body .btn{ justify-self: start; text-decoration: none; }

/* 最近更新 */
.page-home .update-line{ display: grid; gap: 12px; margin-bottom: clamp(20px, 3vw, 32px); }
.page-home .update-item{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  border: var(--edge);
  background: var(--panel);
  padding: 13px 15px;
}
.page-home .update-item .tag{ align-self: start; }
.page-home .update-title{ font-size: 15px; line-height: 1.6; }
.page-home .update-time{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--grey);
  margin-top: 2px;
}

.page-home .stat-strip{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
}
.page-home .stat-cell{
  border: var(--edge);
  background: var(--panel-2);
  padding: 13px 14px;
}
.page-home .stat-num{
  font-family: var(--mono);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
}
.page-home .stat-label{ font-size: 12.5px; color: var(--grey); margin-top: 4px; }

.page-home .closing{
  border: var(--edge);
  background:
    linear-gradient(120deg, rgba(56, 232, 224, 0.14), rgba(255, 106, 42, 0.13)),
    var(--panel);
  padding: clamp(18px, 3vw, 30px);
  display: grid;
  gap: 16px;
  align-content: start;
}
.page-home .closing h3{ font-size: clamp(19px, 2.6vw, 24px); }
.page-home .closing p{ font-size: 14.5px; color: rgba(238, 245, 255, 0.85); max-width: 58ch; margin-top: 8px; }
.page-home .closing .btn{ text-decoration: none; }

/* 悬停展开短摘要：无悬停设备直接完整显示 */
@media (hover: hover) and (min-width: 760px){
  .page-home .feed-more{
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 180ms ease, opacity 180ms ease;
  }
  .page-home .feed-item:hover .feed-more,
  .page-home .feed-item:focus-within .feed-more{
    max-height: 6em;
    opacity: 1;
  }
}

/* 平板与桌面 */
@media (min-width: 760px){
  .page-home .step-cards{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .stat-strip{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .update-item{ grid-template-columns: 78px 1fr; align-items: center; }
  .page-home .closing{ grid-template-columns: 1.6fr auto; align-items: center; }
  .page-home .closing .btn-row{ margin-top: 0; justify-content: flex-end; }
}

@media (min-width: 900px){
  .page-home .duo{ grid-template-columns: 1.6fr 1fr; align-items: start; }
  .page-home .duo--rev{ grid-template-columns: 1fr 1.6fr; }
  .page-home .prob-panel{ grid-template-columns: 0.9fr 1.1fr; }
  .page-home .prob-figure{
    border-bottom: 0;
    border-right: var(--edge);
    height: 100%;
  }
  .page-home .prob-figure img{ height: 100%; object-fit: cover; }
}

@media (min-width: 980px){
  .page-home .hero-grid{ grid-template-columns: 1.4fr 1fr; align-items: start; }
  .page-home .hcard--schedule{ margin-right: 20px; }
  .page-home .hcard--prob{ margin-left: 26px; }
  .page-home .hcard--index{ margin-right: 44px; }
}

@media (prefers-reduced-motion: reduce){
  .page-home .feed-item,
  .page-home .index-nav a,
  .page-home .feed-more{ transition: none; }
  .page-home .feed-item:hover{ transform: none; }
}