.page-home {
  --ph-gap: 14px;
  --ph-line: 2px;
  display: block;
  padding-bottom: clamp(28px, 5vw, 64px);
}

.page-home .ph-section,
.page-home .yb-section {
  padding-block: clamp(30px, 4.4vw, 62px);
}

/* ============ 首屏 ============ */
.page-home .ph-hero {
  padding-block: clamp(16px, 2.4vw, 32px) clamp(26px, 4vw, 52px);
}

.page-home .ph-hero__shell {
  display: grid;
  gap: clamp(16px, 2.2vw, 26px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 1000px) {
  .page-home .ph-hero__shell {
    grid-template-columns: 218px minmax(0, 1fr);
    align-items: start;
  }
}

/* 左侧 rail */
.page-home .ph-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 14px 18px;
  border: var(--ph-line) solid var(--yb-gridline);
  background:
    linear-gradient(180deg, rgba(29, 58, 82, 0.55), rgba(10, 22, 38, 0.25));
  box-shadow: var(--yb-shadow);
}

@media (min-width: 1000px) {
  .page-home .ph-rail {
    position: sticky;
    top: 106px;
  }
}

.page-home .ph-rail__brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--yb-gridline);
}

.page-home .ph-rail__kicker {
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--yb-cyan);
}

.page-home .ph-rail__name {
  font-family: var(--yb-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--yb-cream);
}

.page-home .ph-version {
  width: 100%;
  text-align: left;
}

.page-home .ph-rail__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding-top: 4px;
  border-top: 1px solid var(--yb-gridline);
}

@media (min-width: 1000px) {
  .page-home .ph-rail__nav {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 9px;
  }
}

.page-home .ph-rail__link {
  position: relative;
  display: inline-block;
  padding-left: 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--yb-rock);
  text-decoration: none;
  transition: color var(--yb-t), transform var(--yb-t);
}

.page-home .ph-rail__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 2px;
  background: var(--yb-gridline);
  transition: background var(--yb-t), width var(--yb-t);
}

.page-home .ph-rail__link:hover,
.page-home .ph-rail__link:focus-visible {
  color: var(--yb-cream);
}

.page-home .ph-rail__link.is-active {
  color: var(--yb-cyan);
}

.page-home .ph-rail__link.is-active::before {
  width: 10px;
  background: var(--yb-cyan);
}

.page-home .ph-rail__meta {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--yb-gridline);
  font-size: 12px;
  line-height: 1.6;
  color: var(--yb-rock);
}

.page-home .ph-rail__meta .yb-mono {
  color: var(--yb-cyan);
  font-size: 12px;
}

/* Bento 拼版 */
.page-home .ph-bento {
  display: grid;
  gap: var(--ph-gap);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 760px) {
  .page-home .ph-bento {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-home .ph-tile--lead    { grid-column: 1 / 8; }
  .page-home .ph-tile--version { grid-column: 8 / 13; }
  .page-home .ph-tile--visual  { grid-column: 1 / 8; }
  .page-home .ph-tile--entry   { grid-column: 8 / 13; }
}

.page-home .ph-tile {
  position: relative;
  padding: clamp(16px, 1.9vw, 26px);
  border: var(--ph-line) solid var(--yb-gridline);
  background: var(--yb-panel);
  box-shadow: var(--yb-shadow);
}

.page-home .ph-tile--lead {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background:
    linear-gradient(152deg, rgba(34, 224, 207, 0.09), rgba(18, 36, 56, 0.9) 46%),
    var(--yb-panel);
  border-color: rgba(34, 224, 207, 0.42);
}

.page-home .ph-lead__title {
  margin: 0;
  font-family: var(--yb-display);
  font-weight: 700;
  font-size: clamp(1.72rem, 3.6vw, 2.72rem);
  line-height: 1.22;
  letter-spacing: -0.005em;
  color: var(--yb-cream);
}

.page-home .ph-lead__text {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.62;
  color: var(--yb-rock);
}

.page-home .ph-lead__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 6px;
}

.page-home .ph-tile--version {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-left: 4px solid var(--yb-cyan);
}

.page-home .ph-version__num {
  margin: 0;
  font-size: clamp(2rem, 4.6vw, 3.1rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--yb-cyan);
}

.page-home .ph-version__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yb-rock);
}

.page-home .ph-tile__more {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yb-rock);
  transition: max-height var(--yb-t), opacity var(--yb-t);
}

.page-home .ph-tile--version:hover .ph-tile__more,
.page-home .ph-tile--version:focus-within .ph-tile__more {
  max-height: 6em;
  opacity: 1;
}

.page-home .ph-inline-link {
  display: inline-block;
  margin-top: auto;
  font-size: 13px;
  font-weight: 600;
  color: var(--yb-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 207, 0.4);
  transition: border-color var(--yb-t), color var(--yb-t);
}

.page-home .ph-inline-link:hover,
.page-home .ph-inline-link:focus-visible {
  color: var(--yb-cream);
  border-color: var(--yb-cream);
}

/* 封面主视觉 */
.page-home .ph-cover {
  position: relative;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border-color: var(--yb-gridline);
  background: var(--yb-void);
  min-height: 220px;
}

.page-home .ph-cover__img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.9) brightness(0.72);
}

.page-home .ph-cover__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px clamp(14px, 2vw, 22px) 16px;
  background: linear-gradient(180deg, rgba(5, 12, 21, 0), rgba(5, 12, 21, 0.94) 55%);
}

.page-home .ph-cover__stat {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--yb-cyan);
}

.page-home .ph-cover__desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--yb-cream);
}

/* 入口卡 */
.page-home .ph-tile--entry {
  display: grid;
  gap: 1px;
  padding: 0;
  background: var(--yb-gridline);
  align-content: stretch;
}

.page-home .ph-entry {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(15px, 1.8vw, 22px);
  background: var(--yb-panel);
  transition: background var(--yb-t);
}

.page-home .ph-entry:hover {
  background: #16293f;
}

.page-home .ph-entry__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yb-rock);
}

.page-home .ph-entry .ph-inline-link {
  margin-top: auto;
  align-self: flex-start;
}

/* ============ 覆盖数据带 ============ */
.page-home .ph-spectrum {
  position: relative;
  border-block: var(--ph-line) solid var(--yb-gridline);
  background: var(--yb-void);
  overflow: hidden;
}

.page-home .ph-spectrum__bg {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0.3;
}

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

.page-home .ph-spectrum__inner {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 12px;
  padding-block: clamp(22px, 3vw, 34px);
}

@media (min-width: 700px) {
  .page-home .ph-spectrum__inner {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.page-home .ph-spectrum__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 12px;
  border-left: 2px solid rgba(34, 224, 207, 0.35);
}

.page-home .ph-spectrum__num {
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--yb-cream);
}

.page-home .ph-spectrum__label {
  font-size: 12px;
  color: var(--yb-rock);
}

/* ============ 赛程索引速览 ============ */
.page-home .ph-index__head {
  max-width: 62ch;
}

.page-home .ph-index__body {
  display: grid;
  gap: clamp(16px, 2.2vw, 26px);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(20px, 2.6vw, 32px);
}

@media (min-width: 900px) {
  .page-home .ph-index__body {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

.page-home .ph-index__figure {
  margin: 0;
}

.page-home .ph-index__panel {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 1.8vw, 20px);
  padding: clamp(16px, 2vw, 24px);
  border: var(--ph-line) solid var(--yb-gridline);
  background:
    linear-gradient(180deg, rgba(29, 58, 82, 0.4), rgba(10, 22, 38, 0.15));
  box-shadow: var(--yb-shadow);
}

.page-home .ph-trackwrap__label,
.page-home .ph-matrix__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--yb-rock);
}

.page-home .ph-trackwrap {
  position: relative;
}

.page-home .ph-trackwrap::before,
.page-home .ph-trackwrap::after {
  content: "";
  position: absolute;
  top: 26px;
  bottom: 12px;
  width: 26px;
  z-index: 2;
  pointer-events: none;
}

.page-home .ph-trackwrap::before {
  left: 0;
  background: linear-gradient(90deg, var(--yb-night), rgba(10, 22, 38, 0));
}

.page-home .ph-trackwrap::after {
  right: 0;
  background: linear-gradient(270deg, var(--yb-night), rgba(10, 22, 38, 0));
}

.page-home .ph-track {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 4px 4px 14px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.page-home .ph-track__item {
  scroll-snap-align: start;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 72px;
  padding: 10px 6px 8px;
  border: 1px solid var(--yb-gridline);
  background: var(--yb-night);
  transition: border-color var(--yb-t), background var(--yb-t);
}

.page-home .ph-track__item:hover {
  border-color: rgba(34, 224, 207, 0.55);
}

.page-home .ph-track__dow {
  font-size: 11px;
  color: var(--yb-rock);
}

.page-home .ph-track__num {
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--yb-cream);
}

.page-home .ph-track__bar {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--yb-gridline);
}

.page-home .ph-track__item.is-hot .ph-track__bar {
  background: var(--yb-orange);
}

.page-home .ph-track__item.is-hot .ph-track__num {
  color: var(--yb-orange);
}

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

.page-home .ph-matrix__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.page-home .ph-cells {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 560px) {
  .page-home .ph-cells {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .ph-cell {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 11px;
  border: 1px solid var(--yb-gridline);
  border-left: 3px solid var(--yb-moss);
  background: rgba(10, 22, 38, 0.72);
}

.page-home .ph-cell:nth-child(1),
.page-home .ph-cell:nth-child(2) {
  border-left-color: var(--yb-cyan);
}

.page-home .ph-cell:nth-child(5),
.page-home .ph-cell:nth-child(6) {
  border-left-color: var(--yb-clay);
}

.page-home .ph-cell__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--yb-cream);
}

.page-home .ph-cell__lv {
  font-size: 11px;
  color: var(--yb-rock);
}

.page-home .ph-matrix__empty {
  margin: 10px 0 0;
}

.page-home .ph-index__cta {
  align-self: flex-start;
}

/* ============ 桌面端服务清单 ============ */
.page-home .ph-desktop__head {
  max-width: 64ch;
}

.page-home .ph-desktop__body {
  display: grid;
  gap: clamp(16px, 2.2vw, 26px);
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(20px, 2.6vw, 32px);
}

@media (min-width: 960px) {
  .page-home .ph-desktop__body {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    align-items: start;
  }
  .page-home .ph-desktop__figure {
    margin: 0;
    position: sticky;
    top: 118px;
  }
}

.page-home .ph-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--yb-gridline);
  border: var(--ph-line) solid var(--yb-gridline);
}

@media (min-width: 620px) {
  .page-home .ph-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-home .ph-list__item {
  display: flex;
  gap: 12px;
  padding: 15px 14px;
  background: var(--yb-panel);
  transition: background var(--yb-t);
}

.page-home .ph-list__item:hover {
  background: #16293f;
}

.page-home .ph-list__no {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 700;
  color: var(--yb-orange);
  padding-top: 2px;
}

.page-home .ph-list__body {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-home .ph-list__title {
  margin: 0;
  font-family: var(--yb-head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--yb-cream);
}

.page-home .ph-list__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.58;
  color: var(--yb-rock);
}

.page-home .ph-desktop__foot {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding-top: 4px;
}

/* ============ 更新记录 ============ */
.page-home .ph-log__head {
  max-width: 60ch;
}

.page-home .ph-log__list {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 2.6vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .ph-log__item {
  position: relative;
  display: grid;
  gap: 8px;
  padding: clamp(15px, 1.9vw, 22px) clamp(15px, 1.9vw, 24px);
  border: var(--ph-line) solid var(--yb-gridline);
  border-left: 4px solid var(--yb-orange);
  background: var(--yb-panel);
  box-shadow: var(--yb-shadow);
  transition: transform var(--yb-t), border-left-color var(--yb-t);
}

.page-home .ph-log__item:hover {
  transform: translateX(3px);
  border-left-color: var(--yb-cyan);
}

.page-home .ph-log__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-home .ph-log__ver {
  font-size: 14px;
  font-weight: 700;
  color: var(--yb-cyan);
}

.page-home .ph-log__title {
  margin: 0;
  font-family: var(--yb-head);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  font-weight: 600;
  line-height: 1.34;
  color: var(--yb-cream);
}

.page-home .ph-log__text {
  margin: 0;
  max-width: 72ch;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yb-rock);
}

.page-home .ph-log__foot {
  margin-top: 18px;
}

.page-home .ph-btn-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--yb-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 207, 0.4);
  padding-bottom: 2px;
  transition: color var(--yb-t), border-color var(--yb-t);
}

.page-home .ph-btn-link:hover,
.page-home .ph-btn-link:focus-visible {
  color: var(--yb-cream);
  border-color: var(--yb-cream);
}

/* ============ 案例合集 ============ */
.page-home .ph-cases__head {
  max-width: 66ch;
}

.page-home .ph-cases__grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 32px);
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 720px) {
  .page-home .ph-cases__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .ph-case {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-home .ph-case__no {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--yb-clay);
}

.page-home .ph-case .ph-inline-link {
  margin-top: auto;
}

/* ============ 服务对象 ============ */
.page-home .ph-scene__head {
  max-width: 64ch;
}

.page-home .ph-scene__grid {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 2.6vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 620px) {
  .page-home .ph-scene__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-home .ph-scene__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .ph-scene__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(15px, 1.8vw, 22px);
  border: var(--ph-line) solid var(--yb-gridline);
  background:
    linear-gradient(180deg, rgba(29, 58, 82, 0.34), rgba(18, 36, 56, 0.9));
  box-shadow: var(--yb-shadow);
  transition: border-color var(--yb-t);
}

.page-home .ph-scene__item:hover {
  border-color: rgba(34, 224, 207, 0.5);
}

.page-home .ph-scene__title {
  margin: 0;
  font-family: var(--yb-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--yb-cream);
}

.page-home .ph-scene__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yb-rock);
}

.page-home .ph-scene__item .ph-inline-link {
  margin-top: auto;
  align-self: flex-start;
}

/* ============ 联系 ============ */
.page-home .ph-contact {
  padding-bottom: clamp(30px, 4vw, 60px);
}

.page-home .ph-contact__inner {
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(20px, 2.6vw, 34px);
  border: var(--ph-line) solid var(--yb-gridline);
  border-top: 4px solid var(--yb-orange);
  background:
    linear-gradient(160deg, rgba(255, 107, 44, 0.07), rgba(18, 36, 56, 0.92) 42%),
    var(--yb-panel);
  box-shadow: var(--yb-shadow);
}

@media (min-width: 880px) {
  .page-home .ph-contact__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-home .ph-contact__legal {
    grid-column: 1 / -1;
  }
}

.page-home .ph-contact__lead {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-home .ph-section__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.62;
  color: var(--yb-rock);
}

.page-home .ph-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 6px;
}

.page-home .ph-contact__list {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--yb-gridline);
  border: 1px solid var(--yb-gridline);
}

.page-home .ph-contact__row {
  display: grid;
  gap: 3px;
  padding: 12px 14px;
  background: rgba(10, 22, 38, 0.72);
}

@media (min-width: 520px) {
  .page-home .ph-contact__row {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

.page-home .ph-contact__row dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--yb-rock);
}

.page-home .ph-contact__row dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.58;
  color: var(--yb-cream);
  word-break: break-word;
}

.page-home .ph-contact__row dd a {
  color: var(--yb-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 207, 0.35);
}

.page-home .ph-contact__row dd a:hover,
.page-home .ph-contact__row dd a:focus-visible {
  color: var(--yb-cream);
  border-color: var(--yb-cream);
}

.page-home .ph-contact__legal {
  margin: 0;
  font-size: 12px;
  color: var(--yb-rock);
}

.page-home .ph-contact__legal a {
  color: var(--yb-rock);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-home .ph-contact__legal a:hover,
.page-home .ph-contact__legal a:focus-visible {
  color: var(--yb-cyan);
}

/* ============ 减少动效 ============ */
@media (prefers-reduced-motion: reduce) {
  .page-home .ph-tile__more {
    max-height: none;
    opacity: 1;
    transition: none;
  }
  .page-home .ph-log__item:hover {
    transform: none;
  }
}
<<<END>>>