.page-home {
  --cut: 20px;
  --home-line: 1px solid var(--ridge);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-home a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* 面包屑 */
.page-home .crumbs {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding-top: clamp(1.1rem, 3vw, 1.8rem);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--mist);
}

/* 首屏 */
.page-home .hero {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.4rem);
  padding: clamp(1.3rem, 4vw, 2.4rem) 0 clamp(2rem, 5vw, 3.2rem);
  border-bottom: var(--home-line);
}

.page-home .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 1.1rem;
  padding: .32rem .85rem;
  border: 1px solid var(--ridge);
  border-radius: 999px;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-home .hero-title {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 6.4vw, 3.7rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.03em;
  color: var(--snow);
  transform: skewX(-1.5deg);
  transform-origin: left bottom;
}

.page-home .hero-sub {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(1rem, 2.4vw, 1.08rem);
  line-height: 1.85;
  color: var(--mist);
}

.page-home .path-list {
  display: grid;
  gap: .75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .path-item a {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  color: var(--snow);
  text-decoration: none;
  background: linear-gradient(155deg, rgba(31, 42, 77, .5), rgba(14, 22, 48, .92));
  border: 1px solid var(--ridge);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

.page-home .path-item a:hover {
  border-color: var(--red);
  transform: translateX(4px);
}

.page-home .path-num {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--rock);
  -webkit-text-stroke: 1px var(--red);
}

.page-home .path-body { display: block; }

.page-home .path-title {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-home .path-desc {
  display: block;
  margin-top: .3rem;
  font-size: .87rem;
  line-height: 1.65;
  color: var(--mist);
}

/* 媒体容器 */
.page-home .media {
  margin: 0;
  overflow: hidden;
  background: var(--rock);
  border: 1px solid var(--ridge);
  border-radius: var(--radius);
}

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

.page-home .media-caption {
  margin: 0;
  padding: .65rem 1rem .75rem;
  border-top: 1px solid var(--ridge);
  background: rgba(10, 16, 36, .55);
  font-size: .82rem;
  line-height: 1.6;
  color: var(--mist);
}

/* 章节通用 */
.page-home .section {
  padding: clamp(2.2rem, 6vw, 3.8rem) 0;
  border-bottom: var(--home-line);
}

.page-home .sec-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .8rem 1rem;
  align-items: start;
  margin-bottom: clamp(1.3rem, 4vw, 2.1rem);
}

.page-home .sec-num {
  font-family: var(--font-mono);
  font-size: clamp(2.3rem, 7vw, 4.2rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.02em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--red);
  transform: skewX(-1.5deg);
  transition: color .3s var(--ease);
}

.page-home [data-section].is-current .sec-num {
  color: var(--red);
}

.page-home .sec-kicker {
  margin: 0;
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-home .sec-title {
  margin: .4rem 0 0;
  font-size: clamp(1.35rem, 4vw, 1.95rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--snow);
}

.page-home .sec-sub {
  margin: .7rem 0 0;
  max-width: 62ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--mist);
}

/* 01 导航分组 */
.page-home .nav-groups {
  display: grid;
  gap: 1rem;
}

.page-home .group-card {
  position: relative;
  padding: 1.3rem 1.2rem 1.4rem;
  background: var(--rock);
  border: 1px solid var(--ridge);
  border-radius: var(--radius);
}

.page-home .group-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.2rem;
  width: 44px;
  height: 2px;
  background: var(--gc, var(--red));
}

.page-home .group-card--data { --gc: var(--teal); }
.page-home .group-card--plan { --gc: var(--amber); }
.page-home .group-card--help { --gc: var(--red); }

.page-home .group-count {
  margin: 0;
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--mist);
}

.page-home .group-title {
  margin: .5rem 0 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--snow);
}

.page-home .group-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: .9rem 0 1.1rem;
  padding: 0;
  list-style: none;
}

.page-home .group-tags li {
  padding: .3rem .68rem;
  border: 1px solid var(--ridge);
  border-radius: 999px;
  font-size: .84rem;
  color: var(--mist);
}

.page-home .group-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding-bottom: .14rem;
  border-bottom: 1px solid var(--ridge);
  font-size: .93rem;
  font-weight: 700;
  color: var(--snow);
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-home .group-link:hover {
  border-color: var(--red);
  color: var(--amber);
}

.page-home .nav-figure {
  margin-top: 1.4rem;
}

/* 02 更新 */
.page-home .update-grid {
  display: grid;
  gap: 1.3rem;
}

.page-home .update-body {
  display: grid;
  gap: 1.1rem;
  align-content: start;
}

.page-home .metric-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
}

.page-home .kpi {
  position: relative;
  overflow: hidden;
  padding: 1rem 1.05rem;
  background: linear-gradient(180deg, rgba(18, 26, 51, .95), rgba(10, 16, 36, .95));
  border: 1px solid var(--ridge);
  border-radius: var(--radius-sm);
}

.page-home .kpi--pulse::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red), var(--amber), transparent);
  animation: home-pulse 3s var(--ease) infinite;
}

@keyframes home-pulse {
  0% { transform: translateX(-100%); }
  70% { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}

.page-home .metric-value {
  display: flex;
  align-items: baseline;
  gap: .2rem;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 4.4vw, 2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--snow);
}

.page-home .metric-value .unit {
  font-size: .56em;
  font-weight: 400;
  color: var(--mist);
}

.page-home .metric-value .word {
  font-size: .8em;
  font-family: var(--font-sans);
}

.page-home .metric-label {
  display: block;
  margin-top: .35rem;
  font-size: .82rem;
  color: var(--mist);
}

.page-home .update-note {
  margin: 0;
  max-width: 62ch;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--mist);
}

/* 03 栏目 */
.page-home .plan-grid {
  display: grid;
  gap: 1rem;
}

.page-home .plan-card {
  position: relative;
  overflow: hidden;
  padding: 1.25rem 1.2rem 1.35rem;
  background: var(--rock);
  border: 1px solid var(--ridge);
  border-radius: var(--radius);
  transition: border-color .18s var(--ease);
}

.page-home .plan-card::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 24px;
  height: 24px;
  background: linear-gradient(225deg, var(--night) 47%, var(--amber) 48%, var(--amber) 52%, transparent 53%);
  border-top-right-radius: var(--radius);
}

.page-home .plan-card:hover {
  border-color: var(--red);
}

.page-home .plan-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--snow);
}

.page-home .plan-desc {
  margin: .6rem 0 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-home .plan-cta {
  margin: 1.5rem 0 0;
}

/* 04 老用户通道 */
.page-home .split {
  display: grid;
  gap: 1rem;
}

.page-home .split-card {
  padding: 1.4rem 1.3rem 1.5rem;
  border: 1px solid var(--ridge);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(31, 42, 77, .38), rgba(10, 16, 36, .65));
}

.page-home .split-card--amber { border-left: 2px solid var(--amber); }
.page-home .split-card--teal { border-left: 2px solid var(--teal); }

.page-home .split-title {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--snow);
}

.page-home .split-desc {
  margin: .7rem 0 1.1rem;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--mist);
}

/* 05 数字带 */
.page-home .stat-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-top: .4rem;
  background: var(--ridge);
  border: 1px solid var(--ridge);
  border-radius: var(--radius);
}

.page-home .band-cell {
  padding: 1.15rem 1.05rem;
  background: var(--night);
}

.page-home .band-value {
  display: flex;
  align-items: baseline;
  gap: .25rem;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.05rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--snow);
}

.page-home .band-value .u {
  font-size: .5em;
  font-weight: 400;
  color: var(--mist);
}

.page-home .band-label {
  display: block;
  margin-top: .4rem;
  font-size: .82rem;
  color: var(--mist);
}

.page-home .numbers-note {
  margin: 1.3rem 0 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-home .numbers-note a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid var(--ridge);
}

.page-home .numbers-note a:hover {
  border-color: var(--amber);
}

/* 06 联系 */
.page-home .contact-strip {
  display: grid;
  gap: 1.5rem;
}

.page-home .contact-list {
  display: grid;
  gap: .8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .contact-list li {
  display: grid;
  gap: .18rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--ridge);
}

.page-home .c-label {
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-home .c-value {
  font-size: .98rem;
  line-height: 1.6;
  color: var(--snow);
  word-break: break-word;
}

.page-home .contact-note {
  margin: 1.1rem 0 1.1rem;
  max-width: 58ch;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--mist);
}

/* 响应式 */
@media (min-width: 700px) {
  .page-home .metric-row { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .plan-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .stat-band { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 880px) {
  .page-home .nav-groups { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-home .split { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .sec-head { gap: 1.2rem 1.8rem; }
}

@media (min-width: 900px) {
  .page-home .hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    grid-template-areas:
      "lead media"
      "paths media";
    column-gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }

  .page-home .hero-lead { grid-area: lead; }
  .page-home .path-list { grid-area: paths; }
  .page-home .hero-figure { grid-area: media; }

  .page-home .update-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 1.8rem;
  }

  .page-home .contact-strip {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }
}

@media (min-width: 1100px) {
  .page-home .plan-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .stat-band { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .kpi--pulse::after { animation: none; }
  .page-home .sec-num { transition: none; }
  .page-home .path-item a { transition: none; }
  .page-home .path-item a:hover { transform: none; }
}