.page-home {
  --ph-cut: 18px;
  --ph-cutpoly: polygon(0 0, calc(100% - var(--ph-cut)) 0, 100% var(--ph-cut), 100% 100%, var(--ph-cut) 100%, 0 calc(100% - var(--ph-cut)));
  --ph-gap: clamp(1rem, 3vw, 2rem);
  display: block;
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-home .crumbs {
  padding-top: clamp(1rem, 2.4vw, 1.75rem);
}

/* ---------- 首屏框景 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(.75rem, 2vw, 1.5rem) 0 0;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: -8% -18% auto -18%;
  height: 68%;
  background:
    radial-gradient(58% 70% at 72% 8%, rgba(47, 212, 232, .16), transparent 66%),
    radial-gradient(52% 62% at 18% 0%, rgba(138, 92, 255, .15), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.page-home .hero__frame {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--cv-grid);
  background: linear-gradient(158deg, rgba(12, 38, 68, .94), rgba(6, 23, 46, .97));
  clip-path: var(--ph-cutpoly);
  overflow: hidden;
  min-height: min(74vh, 640px);
}

.page-home .hero__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(29, 60, 97, .34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 60, 97, .34) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
  z-index: 1;
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
  z-index: 0;
}

.page-home .hero__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding: clamp(1.5rem, 4vw, 3.25rem);
}

.page-home .hero__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cv-cyan);
}

.page-home .hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.4rem, 8.6vw, 5.6rem);
  line-height: .98;
  letter-spacing: -.01em;
  color: var(--cv-ink);
}

.page-home .hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.75;
  color: var(--cv-muted);
}

.page-home .hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
}

.page-home .hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.25rem;
  margin: .5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(29, 60, 97, .85);
}

.page-home .hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.page-home .hero__meta-item dt {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--cv-dim);
}

.page-home .hero__meta-item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cv-ink);
}

.page-home .hero__side {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: .85rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border-top: 1px solid rgba(29, 60, 97, .9);
  background: linear-gradient(180deg, rgba(18, 49, 82, .7), rgba(6, 23, 46, .3));
}

.page-home .hero__side-k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--cv-dim);
}

.page-home .hero__side-v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cv-lime);
  letter-spacing: .02em;
}

.page-home .hero__marks {
  list-style: none;
  margin: .25rem 0 0;
  padding: 0;
  display: grid;
  gap: .1rem;
}

.page-home .hero__mark {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: .5rem;
  align-items: center;
  padding: .5rem .6rem;
  font-size: .85rem;
  color: var(--cv-muted);
  border-left: 2px solid transparent;
}

.page-home .hero__mark-n {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--cv-dim);
}

.page-home .hero__mark.is-key {
  color: var(--cv-ink);
  border-left-color: var(--cv-cyan);
  background: linear-gradient(90deg, rgba(47, 212, 232, .14), transparent);
}

.page-home .hero__mark.is-key .hero__mark-n {
  color: var(--cv-cyan);
}

/* ---------- 正文骨架 ---------- */
.page-home .page-home__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

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

.page-home .toc ul {
  list-style: none;
  margin: .75rem 0 0;
  padding: 0;
  display: grid;
  gap: .15rem;
}

.page-home .toc a {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: .4rem;
  align-items: center;
  padding: .45rem .55rem;
  font-size: .88rem;
  color: var(--cv-muted);
  text-decoration: none;
  border-left: 2px solid rgba(29, 60, 97, .9);
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-home .toc a span {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--cv-dim);
}

.page-home .toc a:hover,
.page-home .toc a:focus-visible {
  color: var(--cv-ink);
  background: rgba(47, 212, 232, .08);
}

.page-home .toc a.is-current {
  color: var(--cv-ink);
  border-left-color: var(--cv-cyan);
  background: linear-gradient(90deg, rgba(47, 212, 232, .16), transparent);
}

.page-home .toc a.is-current span {
  color: var(--cv-cyan);
}

.page-home .ph-sec {
  padding: clamp(2rem, 5vw, 3.5rem) 0;
  border-top: 1px solid rgba(29, 60, 97, .7);
}

.page-home .ph-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-home .ph-sec__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .6rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-home .ph-sec__num {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--cv-cyan);
}

.page-home .ph-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -.005em;
  color: var(--cv-ink);
}

.page-home .ph-sec__sub {
  margin: 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--cv-muted);
}

.page-home .ph-note {
  margin: 1.25rem 0 0;
  padding-left: .9rem;
  border-left: 2px solid var(--cv-grid);
  font-size: .92rem;
  line-height: 1.8;
  color: var(--cv-muted);
}

.page-home .ph-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.25rem;
  align-items: center;
  margin-top: 1.5rem;
}

.page-home .ph-link {
  font-size: .92rem;
  color: var(--cv-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 212, 232, .35);
  padding-bottom: 2px;
}

.page-home .ph-link span {
  margin-left: .35rem;
}

.page-home .ph-link:hover,
.page-home .ph-link:focus-visible {
  border-bottom-color: var(--cv-cyan);
}

/* ---------- 路径条 ---------- */
.page-home .ph-path {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  counter-reset: phstep;
}

.page-home .ph-path__item {
  position: relative;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  padding-top: calc(clamp(1.25rem, 3vw, 1.75rem) + .5rem);
  background: linear-gradient(150deg, rgba(18, 49, 82, .85), rgba(9, 30, 54, .6));
  clip-path: var(--ph-cutpoly);
  border-top: 2px solid var(--cv-grid);
}

.page-home .ph-path__item:nth-child(1) {
  border-top-color: var(--cv-cyan);
}

.page-home .ph-path__item:nth-child(2) {
  border-top-color: var(--cv-lime);
}

.page-home .ph-path__dot {
  position: absolute;
  top: -5px;
  left: clamp(1.25rem, 3vw, 1.75rem);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cv-lime);
  box-shadow: 0 0 0 4px rgba(183, 245, 71, .16);
}

.page-home .ph-path__item:nth-child(1) .ph-path__dot {
  background: var(--cv-cyan);
  box-shadow: 0 0 0 4px rgba(47, 212, 232, .16);
}

.page-home .ph-path__num {
  display: block;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--cv-dim);
  margin-bottom: .6rem;
}

.page-home .ph-path__name {
  margin: 0 0 .5rem;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--cv-ink);
}

.page-home .ph-path__desc {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--cv-muted);
}

/* ---------- 图 ---------- */
.page-home .ph-figure {
  margin: 0 0 1.5rem;
  position: relative;
  border: 1px solid var(--cv-grid);
  clip-path: var(--ph-cutpoly);
  overflow: hidden;
  background: var(--cv-panel);
}

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

.page-home .ph-figure figcaption {
  padding: .7rem 1rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--cv-dim);
  border-top: 1px solid rgba(29, 60, 97, .8);
}

.page-home .ph-figure--tight {
  margin-bottom: 0;
}

/* ---------- 控球率数据带 ---------- */
.page-home .ph-band {
  display: grid;
  gap: .35rem;
  padding: clamp(1rem, 3vw, 1.5rem);
  background: linear-gradient(160deg, rgba(12, 38, 68, .8), rgba(6, 23, 46, .5));
  border: 1px solid var(--cv-grid);
  clip-path: var(--ph-cutpoly);
}

.page-home .ph-band__head {
  display: none;
}

.page-home .ph-band__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "yr yr"
    "track val";
  gap: .4rem .75rem;
  align-items: center;
  padding: .55rem 0;
  border-bottom: 1px solid rgba(29, 60, 97, .55);
}

.page-home .ph-band__row:last-child {
  border-bottom: 0;
}

.page-home .ph-band__yr {
  grid-area: yr;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--cv-muted);
}

.page-home .ph-band__track {
  grid-area: track;
  position: relative;
  height: 12px;
  border-radius: 2px;
  background-image:
    linear-gradient(90deg, rgba(29, 60, 97, .9) 1px, transparent 1px);
  background-size: 25% 100%;
  background-color: rgba(9, 30, 54, .85);
  overflow: hidden;
}

.page-home .ph-band__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cv-cyan), var(--cv-violet));
  box-shadow: 0 0 12px rgba(47, 212, 232, .28);
}

.page-home .ph-fill--s1 { left: 33%; width: 21%; }
.page-home .ph-fill--s2 { left: 44%; width: 22%; }
.page-home .ph-fill--s3 { left: 38%; width: 22%; }
.page-home .ph-fill--s4 { left: 55%; width: 22%; }
.page-home .ph-fill--s5 { left: 62%; width: 22%; }

.page-home .ph-fill--s5 {
  background: linear-gradient(90deg, var(--cv-violet), var(--cv-lime));
  box-shadow: 0 0 14px rgba(183, 245, 71, .3);
}

.page-home .ph-band__val {
  grid-area: val;
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 700;
  color: var(--cv-ink);
  white-space: nowrap;
}

/* ---------- 大屏切换 ---------- */
.page-home .ph-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-home .ph-copy {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.page-home .ph-copy__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--cv-ink);
}

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

.page-home .ph-list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--cv-muted);
}

.page-home .ph-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 8px;
  background: var(--cv-cyan);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.page-home .ph-list strong {
  color: var(--cv-ink);
  font-weight: 600;
}

/* ---------- 案例合集 ---------- */
.page-home .ph-cases {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1.25rem;
}

.page-home .ph-case {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.15rem 1.25rem 1.25rem;
  background: linear-gradient(155deg, rgba(18, 49, 82, .8), rgba(9, 30, 54, .55));
  border: 1px solid rgba(29, 60, 97, .85);
  clip-path: var(--ph-cutpoly);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-home .ph-case:hover {
  transform: translateY(-3px);
  border-color: var(--cv-cyan);
}

.page-home .ph-case__idx {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--cv-dim);
}

.page-home .ph-case__name {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--cv-ink);
}

.page-home .ph-case__desc {
  margin: 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--cv-muted);
}

.page-home .ph-case .tag {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 跨设备 ---------- */
.page-home .ph-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-home .ph-duo__item {
  padding: 1.25rem 1.35rem;
  border-left: 2px solid var(--cv-violet);
  background: linear-gradient(90deg, rgba(138, 92, 255, .12), transparent 70%);
}

.page-home .ph-duo__k {
  margin: 0 0 .5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--cv-ink);
}

.page-home .ph-duo__item p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--cv-muted);
}

/* ---------- 继续查看 ---------- */
.page-home .ph-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-home .ph-next__card {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  grid-template-areas:
    "idx name"
    "idx desc";
  gap: .2rem .75rem;
  align-items: start;
  padding: 1.1rem 1.2rem;
  text-decoration: none;
  background: linear-gradient(150deg, rgba(18, 49, 82, .7), rgba(9, 30, 54, .4));
  border: 1px solid rgba(29, 60, 97, .85);
  clip-path: var(--ph-cutpoly);
  transition: border-color .24s var(--ease), background-color .24s var(--ease);
}

.page-home .ph-next__card:hover,
.page-home .ph-next__card:focus-visible {
  border-color: var(--cv-cyan);
}

.page-home .ph-next__idx {
  grid-area: idx;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cv-cyan);
  line-height: 1.3;
}

.page-home .ph-next__name {
  grid-area: name;
  font-size: 1rem;
  font-weight: 600;
  color: var(--cv-ink);
}

.page-home .ph-next__desc {
  grid-area: desc;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--cv-muted);
}

.page-home .ph-foot-line {
  margin: 1.75rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(29, 60, 97, .7);
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  line-height: 1.9;
  color: var(--cv-dim);
}

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

  .page-home .ph-cases {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .ph-duo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .ph-next {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .ph-band__row {
    grid-template-columns: 7rem minmax(0, 1fr) auto;
    grid-template-areas: "yr track val";
    gap: .75rem;
  }

  .page-home .ph-band__head {
    display: grid;
    grid-template-columns: 7rem minmax(0, 1fr) auto;
    gap: .75rem;
    padding-bottom: .5rem;
    border-bottom: 1px solid rgba(29, 60, 97, .8);
    font-family: var(--font-mono);
    font-size: .68rem;
    letter-spacing: .16em;
    color: var(--cv-dim);
  }
}

@media (min-width: 900px) {
  .page-home .hero__frame {
    grid-template-columns: minmax(0, 1fr) 250px;
  }

  .page-home .hero__side {
    border-top: 0;
    border-left: 1px solid rgba(29, 60, 97, .9);
  }

  .page-home .ph-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-home .page-home__body {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .page-home .toc {
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
    align-self: start;
  }

  .page-home .ph-sec__head {
    grid-template-columns: 3.5rem minmax(0, 1fr);
    grid-template-areas:
      "num title"
      "num sub";
    gap: .5rem 1rem;
    align-items: start;
  }

  .page-home .ph-sec__num {
    grid-area: num;
    padding-top: .5rem;
  }

  .page-home .ph-sec__title {
    grid-area: title;
  }

  .page-home .ph-sec__sub {
    grid-area: sub;
  }
}

@media (min-width: 1180px) {
  .page-home .ph-cases {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .ph-case,
  .page-home .ph-next__card {
    transition: none;
  }

  .page-home .ph-case:hover {
    transform: none;
  }
}