.page-home {
  --home-card-bg: rgba(16, 30, 63, .92);
  --home-soft-bg: rgba(16, 30, 63, .58);
  --home-glow: rgba(62, 242, 210, .15);
  overflow-wrap: break-word;
}

.page-home [id^="sec-"] {
  scroll-margin-top: 96px;
}

/* ---------- 封面首屏 ---------- */
.page-home .cover {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 4.6vw, 60px) 0 clamp(38px, 5.5vw, 72px);
}

.page-home .cover::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(640px, 78vw);
  height: 66%;
  background: radial-gradient(72% 100% at 88% 4%, var(--home-glow), rgba(62, 242, 210, 0) 70%);
  pointer-events: none;
}

.page-home .cover__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  padding: 0 var(--gutter);
}

.page-home .cover__index {
  display: grid;
  align-content: start;
  gap: 10px;
}

.page-home .cover__stamp {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 24px);
  letter-spacing: .07em;
  color: var(--c-white);
}

.page-home .cover__ctx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-home .cover__ctx span {
  color: var(--c-slate);
}

.page-home .cover-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0 0 0 15px;
  display: grid;
  gap: 9px;
  border-left: 1px dashed var(--c-line);
}

.page-home .cover-list a {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-slate);
  text-decoration: none;
  transition: color .2s var(--ease), transform .2s var(--ease);
}

.page-home .cover-list a::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin-top: 6px;
  border: 1px solid var(--c-cyan);
  transform: rotate(45deg);
}

.page-home .cover-list a:hover,
.page-home .cover-list a:focus-visible {
  color: var(--c-white);
  transform: translateX(3px);
}

.page-home .cover__main {
  position: relative;
}

.page-home .cover__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-orange);
}

.page-home .cover h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(32px, 6.2vw, 60px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--c-white);
}

.page-home .cover h1 .hl {
  color: var(--c-cyan);
  font-style: normal;
}

.page-home .cover__lead {
  margin: 0 0 26px;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-slate);
}

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

.page-home .cover__figure {
  position: relative;
  z-index: 1;
  margin: clamp(30px, 4.6vw, 54px) var(--gutter) 0;
}

.page-home .cover__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 720;
  object-fit: cover;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-cabin);
}

/* ---------- 三轨入口 ---------- */
.page-home .tracks {
  padding: clamp(42px, 6vw, 82px) 0;
  border-top: 1px solid var(--c-line);
}

.page-home .sec-head {
  max-width: 760px;
}

.page-home .sec-head__lead {
  max-width: 62ch;
}

.page-home .tracks__figure {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
}

.page-home .tracks__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 560;
  object-fit: cover;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-cabin);
}

.page-home .tracks__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 24px);
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-home .track {
  position: relative;
  display: grid;
  gap: 16px;
  align-content: start;
  padding: clamp(20px, 2.6vw, 28px) clamp(20px, 2.6vw, 28px) clamp(20px, 2.6vw, 28px) clamp(24px, 3vw, 32px);
  background: linear-gradient(180deg, rgba(16, 30, 63, .94), rgba(16, 30, 63, .74));
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-home .track:hover {
  border-color: var(--c-cyan);
  transform: translateY(-4px);
}

.page-home .track::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 3px;
  height: 34px;
  background: var(--c-cyan);
  border-radius: 0 3px 3px 0;
}

.page-home .track--desktop::before {
  background: var(--c-orange);
}

.page-home .track--switch::before {
  background: var(--c-green);
}

.page-home .track__head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.page-home .track__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  letter-spacing: .04em;
  color: var(--c-white);
}

.page-home .track__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-home .track__steps li {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-home .track__steps li + li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: -16px;
  height: 16px;
  border-left: 2px dashed var(--c-line);
}

.page-home .track__steps strong {
  display: block;
  margin-bottom: 3px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-white);
}

.page-home .track__steps p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--c-slate);
}

.page-home .track__link {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--c-cyan);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px dashed var(--c-line);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-home .track__link:hover,
.page-home .track__link:focus-visible {
  color: var(--c-white);
  border-bottom-color: var(--c-cyan);
}

/* ---------- 状态标签图例 ---------- */
.page-home .legend {
  padding: clamp(42px, 6vw, 82px) 0;
  border-top: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(16, 30, 63, .5), rgba(10, 22, 51, 0));
}

.page-home .legend__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.2vw, 22px);
  margin-top: clamp(24px, 3.2vw, 36px);
}

.page-home .legend__card {
  display: grid;
  gap: 11px;
  align-content: start;
  padding: clamp(20px, 2.6vw, 28px);
}

.page-home .legend__card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: .03em;
  color: var(--c-white);
}

.page-home .legend__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-slate);
}

/* ---------- 换设备对照 ---------- */
.page-home .switch {
  padding: clamp(42px, 6vw, 82px) 0;
  border-top: 1px solid var(--c-line);
}

.page-home .switch__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(24px, 3.2vw, 36px);
}

.page-home .switch__panel {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--home-soft-bg);
}

.page-home .switch__table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-home .switch__table caption {
  caption-side: top;
  padding: 16px 16px 4px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-amber);
}

.page-home .switch__table th,
.page-home .switch__table td {
  text-align: left;
  vertical-align: top;
  padding: 13px 16px;
  line-height: 1.7;
  border-bottom: 1px solid var(--c-line);
}

.page-home .switch__table th {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-cyan);
  background: rgba(10, 22, 51, .72);
}

.page-home .switch__table td {
  color: var(--c-slate);
}

.page-home .switch__table tbody tr:last-child td {
  border-bottom: 0;
}

.page-home .switch__table tbody tr:hover td {
  background: rgba(62, 242, 210, .06);
  color: var(--c-white);
}

.page-home .switch__figure {
  margin: 0;
}

.page-home .switch__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 800 / 520;
  object-fit: cover;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-cabin);
}

.page-home .switch__more {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-slate);
}

.page-home .switch__more a,
.page-home .version__more a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-home .switch__more a:hover,
.page-home .version__more a:hover {
  color: var(--c-orange);
}

/* ---------- 版本号与节奏 ---------- */
.page-home .version {
  padding: clamp(42px, 6vw, 82px) 0;
  border-top: 1px solid var(--c-line);
}

.page-home .version__plate {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: center;
  margin-top: clamp(24px, 3.2vw, 36px);
  padding: clamp(22px, 3vw, 36px);
  background: linear-gradient(135deg, rgba(16, 30, 63, .96), rgba(10, 22, 51, .82));
}

.page-home .version__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-amber);
}

.page-home .version__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(44px, 8vw, 68px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--c-cyan);
  text-shadow: 0 0 28px rgba(62, 242, 210, .34);
}

.page-home .version__facts {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .version__facts dt {
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--c-slate);
}

.page-home .version__facts dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-white);
}

.page-home .version__more {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-slate);
}

/* ---------- 三条支持路径 ---------- */
.page-home .paths {
  position: relative;
  overflow: hidden;
  padding: clamp(46px, 6.6vw, 92px) 0;
  border-top: 1px solid var(--c-line);
}

.page-home .paths__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .paths__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .4;
}

.page-home .paths__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 22, 51, .74), rgba(10, 22, 51, .94));
}

.page-home .paths > .wrap {
  position: relative;
  z-index: 1;
}

.page-home .paths__list {
  list-style: none;
  margin: clamp(24px, 3.2vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.2vw, 22px);
}

.page-home .paths__item {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--home-card-bg);
}

.page-home .paths__item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  letter-spacing: .03em;
  color: var(--c-white);
}

.page-home .paths__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-slate);
}

.page-home .paths__item .btn {
  justify-self: start;
}

/* ---------- 收尾 ---------- */
.page-home .home-cta {
  padding: 0 var(--gutter) clamp(46px, 6.6vw, 88px);
}

.page-home .home-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: center;
  padding: clamp(24px, 3.4vw, 40px);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: linear-gradient(120deg, rgba(16, 30, 63, .94), rgba(10, 22, 51, .66));
}

.page-home .home-cta__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: .02em;
  color: var(--c-white);
}

.page-home .home-cta__text {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-slate);
}

.page-home .home-cta__inner .btn {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .version__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 26px;
  }
}

@media (min-width: 760px) {
  .page-home .tracks__grid,
  .page-home .legend__grid,
  .page-home .paths__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-home .switch__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 920px) {
  .page-home .cover__grid {
    grid-template-columns: 172px minmax(0, 1fr);
    gap: clamp(30px, 4vw, 58px);
  }
}

@media (min-width: 980px) {
  .page-home .version__plate {
    grid-template-columns: 250px minmax(0, 1fr);
  }

  .page-home .home-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
  }

  .page-home .home-cta__inner .btn {
    justify-self: end;
  }
}

@media (max-width: 520px) {
  .page-home .cover__cta {
    flex-direction: column;
  }

  .page-home .cover__cta .btn {
    justify-content: center;
    text-align: center;
  }

  .page-home .track__steps li + li::before {
    left: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .track,
  .page-home .cover-list a,
  .page-home .track__link {
    transition: none;
  }

  .page-home .track:hover {
    transform: none;
  }
}