.page-home {
  --ph-line: rgba(33, 230, 255, .24);
  --ph-soft: rgba(33, 230, 255, .08);
  background: var(--bw-deep);
  color: var(--bw-silver);
  font-family: var(--bw-font-sans);
  overflow-x: hidden;
}

.page-home img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-home .bw-title {
  font-family: var(--bw-font-sans);
  font-weight: 800;
  letter-spacing: .01em;
  line-height: 1.15;
}

/* ---------- 上下文条 ---------- */
.ph-context {
  border-bottom: 1px solid var(--bw-grid);
  background: linear-gradient(90deg, rgba(33, 230, 255, .12), transparent 65%);
}

.ph-context__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.ph-context__badge {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--bw-deep);
  background: var(--bw-cyan);
  padding: 3px 9px;
  border-radius: 5px;
}

.ph-context__line {
  margin: 0;
  font-size: 13px;
  color: var(--bw-text-soft);
}

.ph-context__time {
  margin: 0;
  font-size: 12px;
  color: var(--bw-gray);
  letter-spacing: .06em;
}

/* ---------- 首屏 ---------- */
.ph-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: 36px 52px;
}

.ph-hero__mesh {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(var(--bw-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bw-grid) 1px, transparent 1px);
  background-size: 58px 58px;
  opacity: .38;
  -webkit-mask-image: radial-gradient(120% 85% at 15% 0%, #000 18%, transparent 72%);
  mask-image: radial-gradient(120% 85% at 15% 0%, #000 18%, transparent 72%);
}

.ph-hero__wedge {
  position: absolute;
  top: -28%;
  right: -26%;
  width: 88%;
  height: 160%;
  z-index: -1;
  background: linear-gradient(158deg, rgba(33, 230, 255, .22), rgba(255, 122, 26, .14) 58%, transparent 80%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 76%);
}

.ph-hero__inner {
  display: grid;
  gap: 34px;
}

.ph-hero__copy .bw-kicker {
  margin: 0;
}

.ph-hero__title {
  margin: 14px 0 0;
  font-size: clamp(29px, 7.2vw, 58px);
}

.ph-mark {
  display: inline-block;
  color: var(--bw-deep);
  background: linear-gradient(100deg, var(--bw-cyan), var(--bw-mist));
  padding: 0 .16em;
  border-radius: 7px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.ph-hero__lead {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--bw-text-soft);
}

.ph-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 26px;
}

.ph-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 28px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--bw-grid);
}

.ph-facts__item dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--bw-gray);
}

.ph-facts__item dd {
  margin: 5px 0 0;
  font-size: 17px;
  color: var(--bw-cyan);
  letter-spacing: .02em;
}

.ph-hero__visual {
  position: relative;
}

.ph-hero__shot {
  border: 1px solid var(--ph-line);
  border-radius: var(--bw-radius);
  overflow: hidden;
  box-shadow: 0 30px 80px -44px rgba(33, 230, 255, .75);
}

.ph-hero__shot img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.ph-hero__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0;
  padding: 8px 14px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--bw-cyan);
  background: var(--bw-deep);
  border: 1px solid var(--bw-cyan);
  border-radius: 999px;
}

/* ---------- 锚点索引 ---------- */
.ph-index {
  border-block: 1px solid var(--bw-grid);
  background: rgba(11, 34, 61, .72);
}

.ph-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding-block: 11px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.ph-index__list::-webkit-scrollbar {
  display: none;
}

.ph-index__link {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 13px;
  font-size: 13px;
  color: var(--bw-text-soft);
  text-decoration: none;
  border: 1px solid var(--bw-grid);
  border-radius: 999px;
  transition: color 180ms var(--bw-ease), background 180ms var(--bw-ease), border-color 180ms var(--bw-ease);
}

.ph-index__link:hover,
.ph-index__link:focus-visible,
.ph-index__link[aria-current="true"] {
  color: var(--bw-deep);
  background: var(--bw-cyan);
  border-color: var(--bw-cyan);
}

/* ---------- 区块通用 ---------- */
.ph-band {
  padding-block: 46px;
  border-top: 1px solid var(--bw-grid);
}

.ph-band--alt {
  background: linear-gradient(180deg, rgba(11, 34, 61, .9), rgba(7, 20, 38, .9));
}

.ph-head {
  max-width: 46em;
}

.ph-head .bw-title {
  margin: 12px 0 0;
  font-size: clamp(24px, 5vw, 36px);
}

.ph-head__lead {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--bw-text-soft);
}

.ph-prose {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--bw-text-soft);
}

/* ---------- 路径区 ---------- */
.ph-split {
  display: grid;
  gap: 30px;
}

.ph-split__main .bw-title {
  margin: 12px 0 0;
  font-size: clamp(24px, 5vw, 36px);
}

.ph-steps {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.ph-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 15px 16px;
  background: var(--bw-mid);
  border: 1px solid var(--bw-grid);
  border-radius: 12px;
  transition: transform 200ms var(--bw-ease), border-color 200ms var(--bw-ease), box-shadow 200ms var(--bw-ease);
}

.ph-steps__item:hover {
  transform: translateY(-2px);
  border-color: rgba(33, 230, 255, .62);
  box-shadow: 0 0 0 1px rgba(33, 230, 255, .22), 0 20px 44px -34px rgba(33, 230, 255, .9);
}

.ph-steps__num {
  font-size: 13px;
  color: var(--bw-orange);
  letter-spacing: .1em;
  padding-top: 3px;
}

.ph-steps__item h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.ph-steps__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--bw-gray);
}

.ph-inline-cta {
  margin: 22px 0 0;
}

.ph-split__aside {
  position: relative;
}

.ph-shot--tilt img {
  width: 100%;
  max-width: 380px;
  margin-inline: auto;
  border: 1px solid var(--bw-grid);
  border-radius: var(--bw-radius);
  transform: rotate(-1.8deg);
  box-shadow: 0 26px 60px -38px #000;
}

.ph-cap {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--bw-gray);
  text-align: center;
}

.ph-note {
  margin-top: 20px;
  padding: 16px 18px;
  border-left: 3px solid var(--bw-orange);
  background: rgba(255, 122, 26, .07);
  border-radius: 0 12px 12px 0;
}

.ph-note__title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--bw-silver);
}

.ph-note__text {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--bw-text-soft);
}

/* ---------- 速度数据 ---------- */
.ph-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
}

.ph-stat {
  position: relative;
  padding: 18px 15px 22px;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(11, 34, 61, .96), rgba(7, 20, 38, .96));
  border: 1px solid var(--bw-grid);
  border-radius: var(--bw-radius);
  transition: border-color 200ms var(--bw-ease);
}

.ph-stat:hover {
  border-color: rgba(33, 230, 255, .55);
}

.ph-stat::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--bw-cyan), var(--bw-orange));
  opacity: .75;
}

.ph-stat__num {
  display: block;
  font-size: clamp(26px, 6.4vw, 34px);
  font-weight: 700;
  color: var(--bw-silver);
  letter-spacing: .01em;
}

.ph-stat__num span {
  font-size: 15px;
  color: var(--bw-cyan);
  margin-left: 2px;
}

.ph-stat__label {
  margin: 9px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--bw-gray);
}

.ph-speed__foot {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.ph-speed__text {
  margin: 0;
  max-width: 40em;
}

/* ---------- 更新摘要 ---------- */
.ph-notes {
  display: grid;
  gap: 20px;
  margin-top: 26px;
}

.ph-version {
  padding: 20px 18px 18px;
  background: var(--bw-mid);
  border: 1px solid var(--ph-line);
  border-radius: var(--bw-radius);
  box-shadow: 0 26px 60px -46px rgba(33, 230, 255, .9);
}

.ph-version__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.ph-version__no {
  font-size: 20px;
  font-weight: 700;
  color: var(--bw-cyan);
  letter-spacing: .06em;
}

.ph-version__title {
  margin: 14px 0 0;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.45;
}

.ph-version__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--bw-text-soft);
}

.ph-version__meta {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--bw-grid);
}

.ph-version__meta dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--bw-gray);
}

.ph-version__meta dd {
  margin: 3px 0 0;
  font-size: 14px;
  color: var(--bw-silver);
}

.ph-version__shot {
  margin-top: 16px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--bw-grid);
}

.ph-version__shot img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.ph-log {
  display: grid;
  gap: 12px;
  align-content: start;
}

.ph-log__item {
  padding: 16px 16px 17px;
  background: rgba(11, 34, 61, .55);
  border: 1px solid var(--bw-grid);
  border-radius: 12px;
  transition: border-color 200ms var(--bw-ease), background 200ms var(--bw-ease);
}

.ph-log__item:hover {
  border-color: rgba(33, 230, 255, .45);
  background: rgba(11, 34, 61, .9);
}

.ph-log__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 9px;
  font-size: 12px;
  color: var(--bw-gray);
}

.ph-log__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.ph-log__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--bw-gray);
}

.ph-log__more {
  justify-self: start;
}

/* ---------- 栏目速查 ---------- */
.ph-grid {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.ph-tile {
  position: relative;
  display: block;
  padding: 18px 16px 20px;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(150deg, rgba(11, 34, 61, .92), rgba(7, 20, 38, .92));
  border: 1px solid var(--bw-grid);
  border-radius: var(--bw-radius);
  transition: transform 200ms var(--bw-ease), border-color 200ms var(--bw-ease), box-shadow 200ms var(--bw-ease);
}

.ph-tile::before {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--bw-cyan), transparent);
  opacity: 0;
  transition: opacity 200ms var(--bw-ease);
}

.ph-tile:hover,
.ph-tile:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(33, 230, 255, .6);
  box-shadow: 0 24px 50px -34px rgba(33, 230, 255, .85);
}

.ph-tile:hover::before,
.ph-tile:focus-visible::before {
  opacity: 1;
}

.ph-tile__tag {
  display: inline-block;
}

.ph-tile__title {
  margin: 12px 0 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--bw-silver);
}

.ph-tile__text {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--bw-gray);
}

/* ---------- 联系 ---------- */
.ph-contact {
  display: grid;
  gap: 26px;
}

.ph-contact__copy .bw-title {
  margin: 12px 0 0;
  font-size: clamp(24px, 5vw, 34px);
}

.ph-contact__copy .bw-btn {
  margin-top: 22px;
}

.ph-contact__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0;
}

.ph-contact__item {
  padding: 13px 15px;
  background: rgba(11, 34, 61, .6);
  border: 1px solid var(--bw-grid);
  border-radius: 10px;
}

.ph-contact__item dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--bw-gray);
}

.ph-contact__item dd {
  margin: 5px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--bw-silver);
  word-break: break-word;
}

.ph-contact__note {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--bw-grid);
  font-size: 13px;
  line-height: 1.8;
  color: var(--bw-gray);
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .ph-index__link,
  .page-home .ph-steps__item,
  .page-home .ph-stat,
  .page-home .ph-tile,
  .page-home .ph-log__item,
  .page-home .ph-tile::before {
    transition: none;
  }

  .page-home .ph-shot--tilt img {
    transform: none;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .ph-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .ph-contact__item--wide {
    grid-column: 1 / -1;
  }

  .ph-speed__foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 940px) {
  .ph-hero {
    padding-block: 74px 96px;
  }

  .ph-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 52px;
  }

  .ph-hero__chip {
    position: absolute;
    left: 18px;
    bottom: -18px;
    margin: 0;
    box-shadow: 0 16px 36px -22px rgba(0, 0, 0, .9);
  }

  .ph-band {
    padding-block: 74px;
  }

  .ph-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: start;
  }

  .ph-split__aside {
    padding-top: 8px;
  }

  .ph-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .ph-notes {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 24px;
    align-items: start;
  }

  .ph-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .ph-contact {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }
}