.page-home {
  --home-line: rgba(154, 166, 196, .22);
  --home-glow: rgba(108, 76, 241, .30);
  position: relative;
  padding-bottom: clamp(40px, 6vw, 80px);
  background:
    radial-gradient(900px 620px at 78% -10%, rgba(108, 76, 241, .28), transparent 62%),
    radial-gradient(720px 560px at 4% 30%, rgba(34, 211, 197, .11), transparent 60%),
    radial-gradient(640px 480px at 94% 78%, rgba(232, 185, 97, .07), transparent 64%),
    var(--gt-void);
  color: var(--gt-paper);
  overflow-x: clip;
}

/* ---------- 右侧章节刻度 ---------- */
.page-home .home-rail {
  display: none;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(28px, 4vw, 56px) 0 clamp(48px, 7vw, 88px);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -180px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108, 76, 241, .30), transparent 68%);
  pointer-events: none;
}

.page-home .hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4.5vw, 58px);
  align-items: center;
  margin-top: clamp(18px, 3vw, 34px);
}

.page-home .hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 4.6vw, 58px);
  line-height: 1.16;
  letter-spacing: .06em;
  font-weight: 700;
  color: var(--gt-paper);
}

.page-home .hero__title span {
  display: block;
  margin-top: .42em;
  font-size: .44em;
  line-height: 1.5;
  letter-spacing: .1em;
  font-weight: 500;
  color: var(--gt-rock);
}

.page-home .hero__lede {
  margin: 24px 0 0;
  max-width: 560px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gt-rock);
}

.page-home .paths {
  list-style: none;
  margin: clamp(26px, 3.5vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 540px;
}

.page-home .path {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 15px 18px;
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
  background: linear-gradient(100deg, rgba(13, 21, 48, .94), rgba(13, 21, 48, .28));
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform .16s var(--gt-ease), border-color .16s var(--gt-ease);
}

.page-home .path::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 0;
  background: linear-gradient(90deg, var(--gt-cyan), rgba(34, 211, 197, 0));
  transition: width .12s linear;
}

.page-home .path:hover,
.page-home .path:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(34, 211, 197, .55);
}

.page-home .path:hover::after,
.page-home .path:focus-visible::after {
  width: 100%;
}

.page-home .path__index {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gt-gold);
}

.page-home .path__body {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-home .path__body strong {
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--gt-paper);
}

.page-home .path__body em {
  font-style: normal;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--gt-rock);
}

.page-home .path__arrow {
  font-size: 16px;
  color: var(--gt-cyan);
  transition: transform .16s var(--gt-ease);
}

.page-home .path:hover .path__arrow {
  transform: translateX(3px);
}

.page-home .hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
  overflow: hidden;
  background: linear-gradient(160deg, rgba(13, 21, 48, .95), rgba(6, 10, 24, .5));
  box-shadow: 0 30px 70px -34px rgba(108, 76, 241, .6);
}

.page-home .hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: .92;
}

.page-home .hero__visual figcaption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gt-rock);
  background: rgba(6, 10, 24, .74);
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
}

/* ---------- 章节标题 ---------- */
.page-home .sec-head {
  max-width: 740px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-home .sec-head h2 {
  margin: 12px 0 0;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.3;
  letter-spacing: .04em;
  color: var(--gt-paper);
}

.page-home .sec-head__lede {
  margin: 16px 0 0;
  max-width: 660px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--gt-rock);
}

/* ---------- 通道结构 ---------- */
.page-home .channel__figure {
  margin: 0;
  border-radius: var(--gt-radius);
  overflow: hidden;
}

.page-home .groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(26px, 3.5vw, 40px);
}

.page-home .group {
  position: relative;
  padding: 24px 20px 26px;
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
  background: linear-gradient(180deg, rgba(13, 21, 48, .9), rgba(6, 10, 24, .5));
}

.page-home .group::before {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--gt-violet), transparent 72%);
}

.page-home .group h3 {
  margin: 10px 0 0;
  font-size: 20px;
  letter-spacing: .04em;
  color: var(--gt-paper);
}

.page-home .group > p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gt-rock);
}

.page-home .nodes {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .node {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-left: 1px solid var(--gt-orbit);
  border-radius: 2px;
  background: rgba(28, 37, 69, .38);
  transition: background .16s var(--gt-ease), border-color .16s var(--gt-ease);
}

.page-home .node:hover,
.page-home .node:focus-visible {
  background: rgba(28, 37, 69, .72);
  border-left-color: var(--gt-cyan);
  outline: none;
}

.page-home .node__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid var(--gt-rock);
  transition: border-color .16s var(--gt-ease), box-shadow .16s var(--gt-ease);
}

.page-home .node:hover .node__dot,
.page-home .node:focus-visible .node__dot {
  border-color: var(--gt-cyan);
  box-shadow: 0 0 0 5px rgba(34, 211, 197, .14);
}

.page-home .node__label {
  font-size: 15px;
  color: var(--gt-paper);
}

.page-home .node__card {
  flex: 1 0 100%;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gt-rock);
  background: rgba(13, 21, 48, .9);
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
}

/* ---------- 上手三步 ---------- */
.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-home .step {
  position: relative;
  padding: 26px 22px 24px;
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
  background: linear-gradient(170deg, rgba(13, 21, 48, .94), rgba(6, 10, 24, .58));
}

.page-home .step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--gt-gold);
  border-radius: 50%;
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--gt-gold);
}

.page-home .step h3 {
  margin: 18px 0 0;
  font-size: 19px;
  letter-spacing: .04em;
  color: var(--gt-paper);
}

.page-home .step p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--gt-rock);
}

.page-home .step__link {
  display: inline-block;
  margin-top: 16px;
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--gt-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 197, .38);
}

.page-home .step__link:hover {
  border-bottom-color: var(--gt-cyan);
}

/* ---------- 斜向分隔带 ---------- */
.page-home .band {
  position: relative;
  margin: clamp(54px, 8vw, 104px) 0;
  overflow: hidden;
  clip-path: polygon(0 7%, 100% 0, 100% 93%, 0 100%);
}

.page-home .band img {
  display: block;
  width: 100%;
  height: clamp(150px, 20vw, 240px);
  object-fit: cover;
  opacity: .55;
}

.page-home .band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 10, 24, .94), rgba(6, 10, 24, .14) 46%, rgba(6, 10, 24, .94));
  pointer-events: none;
}

/* ---------- 资料库与更新 ---------- */
.page-home .lib {
  align-items: start;
}

.page-home .figures {
  list-style: none;
  margin: 0;
  padding: 24px 20px;
  display: grid;
  gap: 18px;
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
  background: rgba(13, 21, 48, .58);
}

.page-home .figures li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(28, 37, 69, .95);
}

.page-home .figures li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-home .figures__n {
  font-size: 30px;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--gt-gold);
}

.page-home .figures__t {
  font-size: 14px;
  color: var(--gt-rock);
}

.page-home .log {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .log__item {
  position: relative;
  padding: 18px 20px 18px 24px;
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
  background: rgba(13, 21, 48, .6);
  transition: border-color .16s var(--gt-ease), transform .16s var(--gt-ease);
}

.page-home .log__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--gt-violet), transparent);
}

.page-home .log__item:hover {
  transform: translateY(-2px);
  border-color: rgba(34, 211, 197, .45);
}

.page-home .log__meta {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-home .log__when {
  font-size: 13px;
  color: var(--gt-rock);
}

.page-home .log__item h3 {
  margin: 12px 0 0;
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: .03em;
  color: var(--gt-paper);
}

.page-home .log__item p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gt-rock);
}

.page-home .lib__more {
  margin: 20px 0 0;
  font-size: 14px;
}

.page-home .lib__more a {
  color: var(--gt-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 197, .38);
  padding-bottom: 2px;
}

.page-home .lib__more a:hover {
  border-bottom-color: var(--gt-cyan);
}

/* ---------- 版本对照 ---------- */
.page-home .compare {
  position: relative;
  padding: clamp(18px, 2.8vw, 30px);
  overflow: hidden;
}

.page-home .compare__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  border-radius: inherit;
  overflow: hidden;
}

.page-home .compare__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
}

.page-home .compare__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 10, 24, .88), rgba(6, 10, 24, .96));
}

.page-home .compare__top,
.page-home .compare__scroll,
.page-home .compare__hint {
  position: relative;
  z-index: 1;
}

.page-home .compare__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.page-home .compare__top h3 {
  margin: 0;
  font-size: 19px;
  letter-spacing: .04em;
  color: var(--gt-paper);
}

.page-home .compare__switch {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--gt-rock);
  border: 1px solid var(--gt-orbit);
  border-radius: 100px;
  cursor: pointer;
  user-select: none;
  transition: border-color .16s var(--gt-ease), color .16s var(--gt-ease);
}

.page-home .compare__switch:hover {
  color: var(--gt-paper);
  border-color: rgba(34, 211, 197, .6);
}

.page-home .compare__input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: none;
  width: 30px;
  height: 16px;
  margin: 0;
  border: 1px solid var(--gt-rock);
  border-radius: 100px;
  background: rgba(28, 37, 69, .9);
  cursor: pointer;
  transition: background .16s var(--gt-ease), border-color .16s var(--gt-ease);
}

.page-home .compare__input::after {
  content: "";
  position: absolute;
  top: 1px;
  left: 1px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gt-rock);
  transition: transform .16s var(--gt-ease), background .16s var(--gt-ease);
}

.page-home .compare__input:checked {
  border-color: var(--gt-cyan);
  background: rgba(34, 211, 197, .18);
}

.page-home .compare__input:checked::after {
  transform: translateX(14px);
  background: var(--gt-cyan);
}

.page-home .compare__input:focus-visible {
  outline: 2px solid var(--gt-violet);
  outline-offset: 3px;
}

.page-home .compare:has(.compare__input:checked) .compare__table tbody tr:not([data-diff]) {
  display: none;
}

.page-home .compare__scroll {
  overflow-x: auto;
}

.page-home .compare__table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-home .compare__table caption {
  padding-bottom: 12px;
  font-size: 13px;
  text-align: left;
  color: var(--gt-rock);
}

.page-home .compare__table th,
.page-home .compare__table td {
  padding: 14px 16px;
  vertical-align: top;
  text-align: left;
  line-height: 1.7;
  border-bottom: 1px solid var(--gt-orbit);
}

.page-home .compare__table thead th {
  font-family: var(--gt-ff-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gt-rock);
  border-bottom-color: rgba(154, 166, 196, .45);
}

.page-home .compare__table tbody th {
  position: relative;
  width: 24%;
  font-weight: 500;
  color: var(--gt-paper);
}

.page-home .compare__table tbody td {
  color: var(--gt-rock);
}

.page-home .compare__table tbody tr[data-diff] th::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--gt-gold);
}

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

.page-home .compare__hint {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gt-rock);
}

.page-home .compare__hint a {
  color: var(--gt-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 197, .38);
}

.page-home .compare__hint a:hover {
  border-bottom-color: var(--gt-cyan);
}

/* ---------- 咨询与联络 ---------- */
.page-home .reach {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-home .reach__item {
  display: grid;
  gap: 8px;
  padding: 22px 20px;
  border: 1px solid var(--gt-orbit);
  border-radius: var(--gt-radius);
  background: linear-gradient(180deg, rgba(13, 21, 48, .82), rgba(6, 10, 24, .46));
  text-decoration: none;
  color: inherit;
  transition: transform .16s var(--gt-ease), border-color .16s var(--gt-ease);
}

.page-home a.reach__item:hover {
  transform: translateY(-2px);
  border-color: rgba(34, 211, 197, .6);
}

.page-home .reach__k {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gt-rock);
}

.page-home .reach__v {
  font-size: 16px;
  line-height: 1.65;
  color: var(--gt-paper);
  word-break: break-word;
}

.page-home .reach__n {
  font-size: 13px;
  color: var(--gt-rock);
}

.page-home .reach__more {
  margin: 26px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gt-rock);
}

.page-home .reach__more a {
  color: var(--gt-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 197, .38);
}

.page-home .reach__more a:hover {
  border-bottom-color: var(--gt-cyan);
}

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

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

  .page-home .reach__item--static {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

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

  .page-home .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-home .steps > :nth-child(2) {
    margin-top: 34px;
  }

  .page-home .steps > :nth-child(3) {
    margin-top: 68px;
  }

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

  .page-home .reach__item--static {
    grid-column: auto;
  }

  .page-home .node__card {
    position: absolute;
    left: 0;
    top: calc(100% + 8px);
    z-index: 6;
    flex: none;
    width: min(290px, 40vw);
    margin-top: 0;
    background: var(--gt-nebula);
    border-color: var(--gt-violet);
    box-shadow: 0 18px 36px -20px rgba(0, 0, 0, .95);
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity .18s var(--gt-ease), transform .18s var(--gt-ease);
  }

  .page-home .node:hover .node__card,
  .page-home .node:focus-visible .node__card,
  .page-home .node:focus-within .node__card {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 1180px) {
  .page-home .home-rail {
    position: fixed;
    right: 14px;
    top: 50%;
    z-index: 40;
    display: grid;
    gap: 16px;
    transform: translateY(-50%);
  }

  .page-home .home-rail__link {
    position: relative;
    display: block;
    width: 28px;
    height: 12px;
    text-decoration: none;
  }

  .page-home .home-rail__link::before {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    width: 14px;
    height: 1px;
    background: var(--gt-rock);
    opacity: .5;
    transition: width .16s var(--gt-ease), background .16s var(--gt-ease), opacity .16s var(--gt-ease);
  }

  .page-home .home-rail__link:hover::before,
  .page-home .home-rail__link:focus-visible::before {
    width: 24px;
    background: var(--gt-cyan);
    opacity: 1;
  }

  .page-home .home-rail__label {
    position: absolute;
    right: 32px;
    top: 50%;
    white-space: nowrap;
    font-family: var(--gt-ff-mono);
    font-size: 11px;
    letter-spacing: .12em;
    color: var(--gt-rock);
    opacity: 0;
    transform: translateY(-50%) translateX(4px);
    pointer-events: none;
    transition: opacity .16s var(--gt-ease), transform .16s var(--gt-ease);
  }

  .page-home .home-rail__link:hover .home-rail__label,
  .page-home .home-rail__link:focus-visible .home-rail__label {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .path,
  .page-home .path::after,
  .page-home .path__arrow,
  .page-home .log__item,
  .page-home .node,
  .page-home .node__dot,
  .page-home .node__card,
  .page-home .reach__item,
  .page-home .compare__input::after,
  .page-home .home-rail__link::before,
  .page-home .home-rail__label {
    transition: opacity .2s linear;
    transform: none;
  }

  .page-home .path:hover,
  .page-home .log__item:hover,
  .page-home .reach__item:hover {
    transform: none;
  }
}