.page-home {
  --ph-gap-lg: clamp(24px, 4vw, 56px);
  --ph-shadow: 0 18px 40px rgba(0, 0, 0, .34);
  background: var(--ak-deep);
  color: var(--ak-white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-home .ph-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(118px, 17vw, 232px) 0 clamp(44px, 6vw, 84px);
  background:
    radial-gradient(120% 88% at 86% 4%, rgba(24, 224, 200, .12), transparent 58%),
    radial-gradient(96% 72% at 2% 94%, rgba(230, 57, 70, .11), transparent 62%),
    var(--ak-deep);
}

.page-home .ph-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  z-index: 0;
  pointer-events: none;
}

.page-home .ph-hero__wedge {
  position: absolute;
  top: -14%;
  right: -16%;
  width: min(720px, 80vw);
  height: 130%;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(148deg, rgba(24, 224, 200, .17) 0%, rgba(24, 224, 200, .04) 42%, transparent 70%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 58%);
}

.page-home .ph-hero__wedge--b {
  top: auto;
  right: auto;
  bottom: -22%;
  left: -20%;
  width: min(560px, 68vw);
  height: 88%;
  background: linear-gradient(18deg, rgba(244, 197, 66, .14) 0%, rgba(230, 57, 70, .10) 46%, transparent 76%);
  clip-path: polygon(0 24%, 100% 0, 80% 100%, 0 100%);
}

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

.page-home .ph-hero__kicker {
  margin: 0 0 6px;
}

.page-home .ph-hero__title {
  max-width: 22ch;
  margin: 12px 0 0;
}

.page-home .ph-hero__lede {
  max-width: 64ch;
  margin: 20px 0 0;
  color: var(--ak-text-soft);
}

.page-home .ph-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

/* 双栏摘要 */
.page-home .ph-hero__split {
  display: grid;
  gap: var(--ak-gap);
  margin-top: var(--ph-gap-lg);
  padding-top: var(--ph-gap-lg);
  border-top: 1px solid var(--ak-line);
}

.page-home .ph-panel {
  position: relative;
  background: var(--ak-glass);
  border: 1px solid var(--ak-line);
  border-left: 2px solid var(--ak-cyan);
  border-radius: var(--ak-radius);
  padding: clamp(18px, 2.4vw, 26px);
  backdrop-filter: blur(6px);
  transition: border-color .24s ease, transform .24s ease, background .24s ease;
}

.page-home .ph-panel--visit {
  border-left-color: var(--ak-yellow);
}

.page-home .ph-panel:hover {
  border-top-color: var(--ak-cyan);
  border-right-color: var(--ak-cyan);
  border-bottom-color: var(--ak-cyan);
  background: rgba(17, 20, 23, .74);
  transform: translateY(-2px);
}

.page-home .ph-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.page-home .ph-panel__title {
  margin: 0;
  font-family: var(--ak-font-head);
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--ak-white);
}

.page-home .ph-panel__note {
  margin: 10px 0 16px;
  font-size: .9375rem;
  line-height: 1.82;
  color: var(--ak-text-soft);
}

.page-home .ph-panel__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ak-line-soft);
}

.page-home .ph-panel__list .ak-list__item {
  border-bottom: 1px solid var(--ak-line-soft);
}

.page-home .ph-panel__media {
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--ak-line);
  border-radius: var(--ak-radius);
}

.page-home .ph-panel__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  opacity: .84;
}

.page-home .ph-windows {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 18px;
  background: var(--ak-line);
  border: 1px solid var(--ak-line);
  border-radius: var(--ak-radius);
  overflow: hidden;
}

.page-home .ph-windows .ak-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 10px;
  background: var(--ak-char);
  text-align: center;
}

.page-home .ph-windows .ak-stat__num {
  font-family: var(--ak-font-data);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ak-white);
}

.page-home .ph-windows .ak-stat__label {
  font-size: .75rem;
  letter-spacing: .05em;
  color: var(--ak-text-dim);
}

/* 数据摘要带 */
.page-home .ph-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: var(--ph-gap-lg) 0 0;
  padding: 1px;
  list-style: none;
  background: var(--ak-line);
  border-radius: var(--ak-radius);
  overflow: hidden;
}

.page-home .ph-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: rgba(17, 20, 23, .76);
}

.page-home .ph-stat__num {
  font-family: var(--ak-font-data);
  font-size: clamp(1.3rem, 2.8vw, 1.8rem);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--ak-cyan);
}

.page-home .ph-hero__stats li:nth-child(2) .ph-stat__num { color: var(--ak-yellow); }
.page-home .ph-hero__stats li:nth-child(3) .ph-stat__num { color: var(--ak-white); }
.page-home .ph-hero__stats li:nth-child(4) .ph-stat__num { color: var(--ak-violet); }

.page-home .ph-stat__label {
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--ak-text-dim);
}

/* ---------- 横向工具带 ---------- */
.page-home .ph-tools {
  background: var(--ak-char);
  border-top: 1px solid var(--ak-line);
  border-bottom: 1px solid var(--ak-line);
}

.page-home .ph-tools__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-home .ph-tools__num {
  flex: none;
  margin-top: 6px;
  padding: 5px 9px;
  font-family: var(--ak-font-data);
  font-size: .8125rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .08em;
  color: var(--ak-yellow);
  border: 1px solid rgba(244, 197, 66, .4);
  border-radius: 2px;
}

.page-home .ph-tools__sub {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.82;
  color: var(--ak-text-soft);
}

.page-home .ph-tools__figure {
  margin: 0 0 clamp(22px, 3vw, 30px);
  overflow: hidden;
  border: 1px solid var(--ak-line);
  border-radius: var(--ak-radius);
}

.page-home .ph-tools__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
  opacity: .7;
}

.page-home .ph-tools__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ak-line);
  border: 1px solid var(--ak-line);
  border-radius: var(--ak-radius);
  overflow: hidden;
}

.page-home .ph-tool {
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
  padding: 20px 18px;
  background: var(--ak-char);
  text-decoration: none;
  color: var(--ak-white);
  box-shadow: inset 0 0 0 0 var(--ak-cyan);
  transition: background .22s ease, box-shadow .22s ease;
}

.page-home .ph-tool:hover,
.page-home .ph-tool:focus-visible {
  background: rgba(24, 224, 200, .07);
  box-shadow: inset 0 2px 0 var(--ak-cyan);
  outline: none;
}

.page-home .ph-tool .ak-tag {
  align-self: flex-start;
}

.page-home .ph-tool__desc {
  flex: 1;
  font-size: .875rem;
  line-height: 1.78;
  color: var(--ak-text-soft);
}

.page-home .ph-tool__go {
  font-family: var(--ak-font-data);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ak-cyan);
}

/* ---------- 2026 版更新 ---------- */
.page-home .ph-ver__grid {
  display: grid;
  gap: var(--ph-gap-lg);
}

.page-home .ph-ver__lead p {
  margin: 16px 0 22px;
  max-width: 48ch;
  font-size: .9375rem;
  line-height: 1.86;
  color: var(--ak-text-soft);
}

.page-home .ph-ver__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ak-line);
}

.page-home .ph-ver__row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--ak-line);
}

.page-home .ph-ver__key {
  font-family: var(--ak-font-data);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ak-yellow);
}

.page-home .ph-ver__val {
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ak-text-soft);
}

/* ---------- 查阅场景 ---------- */
.page-home .ph-scene__head {
  max-width: 62ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-home .ph-scene__head p {
  margin: 14px 0 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ak-text-soft);
}

.page-home .ph-scene__grid {
  display: grid;
  gap: var(--ak-gap);
}

.page-home .ph-scene__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--ak-char);
  border: 1px solid var(--ak-line);
  border-radius: var(--ak-radius);
  transition: border-color .22s ease, transform .22s ease, box-shadow .22s ease;
}

.page-home .ph-scene__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--ak-cyan);
  opacity: .9;
}

.page-home .ph-scene__card--warn::before { background: var(--ak-yellow); }
.page-home .ph-scene__card--red::before { background: var(--ak-red); }

.page-home .ph-scene__card:hover {
  border-color: var(--ak-line-strong);
  transform: translateY(-3px);
  box-shadow: var(--ph-shadow);
}

.page-home .ph-scene__card .ak-tag {
  align-self: flex-start;
}

.page-home .ph-scene__card h3 {
  margin: 0;
  font-family: var(--ak-font-head);
  font-size: clamp(1.08rem, 2vw, 1.22rem);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--ak-white);
}

.page-home .ph-scene__card p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ak-text-soft);
}

.page-home .ph-scene__card .ak-link {
  margin-top: auto;
  align-self: flex-start;
  font-size: .875rem;
}

/* ---------- 下一步 ---------- */
.page-home .ph-cta__panel {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  padding: clamp(26px, 4vw, 52px);
  border-radius: var(--ak-radius);
  border-top: 2px solid var(--ak-cyan);
}

.page-home .ph-cta__copy p {
  margin: 16px 0 24px;
  max-width: 54ch;
  font-size: .9375rem;
  line-height: 1.86;
  color: var(--ak-text-soft);
}

.page-home .ph-cta__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .ph-cta__facts {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ak-line);
}

.page-home .ph-cta__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ak-text-soft);
  border-bottom: 1px solid var(--ak-line);
}

.page-home .ph-cta__facts li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ak-cyan);
  transform: translateY(-2px);
}

/* ---------- 返回顶部 ---------- */
.page-home .ak-totop {
  position: fixed;
  right: clamp(14px, 3vw, 26px);
  bottom: clamp(14px, 3vw, 26px);
  z-index: 50;
  padding: 10px 14px;
  font-family: var(--ak-font-data);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--ak-white);
  background: rgba(11, 31, 23, .92);
  border: 1px solid var(--ak-line-strong);
  border-radius: var(--ak-radius);
  backdrop-filter: blur(6px);
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease;
}

.page-home .ak-totop:hover,
.page-home .ak-totop:focus-visible {
  border-color: var(--ak-cyan);
  color: var(--ak-cyan);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .ph-ver__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-home .ph-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

@media (min-width: 820px) {
  .page-home .ph-scene__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

  .page-home .ph-hero__split > *:first-child {
    padding-right: clamp(20px, 3vw, 40px);
  }

  .page-home .ph-hero__split > *:last-child {
    padding-left: clamp(20px, 3vw, 40px);
    border-left: 1px solid var(--ak-line);
  }

  .page-home .ph-cta__panel {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 940px) {
  .page-home .ph-ver__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-home .ph-tools__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .page-home .ph-windows {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .ph-hero__title {
    max-width: none;
  }

  .page-home .ph-tool {
    padding: 18px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .ph-panel,
  .page-home .ph-scene__card,
  .page-home .ph-tool,
  .page-home .ak-totop {
    transition: none;
  }

  .page-home .ph-panel:hover,
  .page-home .ph-scene__card:hover {
    transform: none;
  }
}