.page-home {
  --home-radius: 14px;
  --home-pad: clamp(44px, 6vw, 84px);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(28px, 5vw, 60px) 0 clamp(34px, 5vw, 64px);
  background: var(--paper);
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(115deg, rgba(29, 78, 137, .075) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(25deg, rgba(192, 138, 46, .075) 0 1px, transparent 1px 64px);
  mask-image: linear-gradient(160deg, #000 0%, rgba(0, 0, 0, .35) 58%, transparent 88%);
  -webkit-mask-image: linear-gradient(160deg, #000 0%, rgba(0, 0, 0, .35) 58%, transparent 88%);
}

.page-home .hero > .shell {
  position: relative;
  z-index: 1;
}

.page-home .hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  margin-top: 20px;
  align-items: center;
}

.page-home .hero__copy h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.18;
  letter-spacing: .01em;
  color: var(--deep);
}

.page-home .hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-home .hero__visual {
  margin: 0;
  border-radius: var(--home-radius);
  overflow: hidden;
  border: 1px solid var(--pale);
  background: var(--glaze);
  box-shadow: 0 18px 44px rgba(12, 31, 51, .12);
}

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

/* 章节预览目录 */
.page-home .toc {
  margin-top: clamp(32px, 5vw, 58px);
  padding-top: 20px;
  border-top: 2px solid var(--brass-soft);
}

.page-home .toc__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--brass);
}

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

.page-home .toc__item {
  min-width: 0;
}

.page-home .toc__link {
  display: block;
  height: 100%;
  padding: 14px 15px 16px;
  border-left: 2px solid var(--pale);
  text-decoration: none;
  color: var(--ink);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-home .toc__link:hover {
  border-left-color: var(--brass);
  background: rgba(216, 228, 242, .38);
}

.page-home .toc__num {
  display: block;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--brass);
}

.page-home .toc__label {
  display: block;
  margin-top: 4px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .04em;
  color: var(--deep);
}

.page-home .toc__hint {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--gray);
}

/* ---------- 入口楼层 ---------- */
.page-home .floor {
  position: relative;
  padding: var(--home-pad) 0;
  background: var(--blue);
  color: var(--glaze);
  overflow: hidden;
}

.page-home .floor::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, .07) 0 1px, transparent 1px 92px);
}

.page-home .floor::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: min(34%, 420px);
  height: 3px;
  background: var(--brass);
}

.page-home .floor > .shell {
  position: relative;
  z-index: 1;
}

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

.page-home .floor__title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  color: var(--glaze);
}

.page-home .floor__lede {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .82);
}

.page-home .floor__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
  border-radius: var(--home-radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .22);
}

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

.page-home .floor__list {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .floor__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 20px;
  border-radius: var(--home-radius);
  border: 1px solid rgba(255, 255, 255, .28);
  background: rgba(255, 255, 255, .10);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: transform .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-home .floor__card:hover {
  transform: translateY(-4px);
  border-color: var(--brass);
  background: rgba(255, 255, 255, .17);
}

.page-home .floor__num {
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--brass-soft);
}

.page-home .floor__card-title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.4;
  letter-spacing: .04em;
  color: var(--glaze);
}

.page-home .floor__card-text {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .84);
}

.page-home .floor__card-link {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--brass-soft);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-home .floor__card-link:hover {
  color: var(--glaze);
  border-bottom-color: var(--brass);
}

/* ---------- 认准方向 ---------- */
.page-home .route {
  padding: var(--home-pad) 0;
  background: var(--paper);
}

.page-home .route__head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3.5vw, 36px);
}

.page-home .route__title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  color: var(--deep);
}

.page-home .route__lede {
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
}

.page-home .route__steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .route__step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  column-gap: 10px;
  padding: 22px 0;
  border-top: 1px solid var(--pale);
}

.page-home .route__step:last-child {
  border-bottom: 1px solid var(--pale);
}

.page-home .route__step-num {
  grid-row: 1 / span 3;
  padding-top: 5px;
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--brass);
}

.page-home .route__step-title {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.45;
  letter-spacing: .04em;
  color: var(--deep);
}

.page-home .route__step-text {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}

/* ---------- 版本 ---------- */
.page-home .version {
  padding: var(--home-pad) 0;
  background: var(--paper);
}

.page-home .version__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-home .version__title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  color: var(--deep);
}

.page-home .version__lede {
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
}

.page-home .version__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-home .version__list li {
  position: relative;
  padding: 13px 0 13px 24px;
  border-bottom: 1px solid var(--pale);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-home .version__list li:first-child {
  border-top: 1px solid var(--pale);
}

.page-home .version__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 22px;
  width: 8px;
  height: 8px;
  background: var(--brass);
  transform: rotate(45deg);
}

.page-home .version__figure {
  margin: 0;
  border-radius: var(--home-radius);
  overflow: hidden;
  border: 1px solid var(--pale);
  background: var(--glaze);
}

/* ---------- 在线区间 ---------- */
.page-home .online {
  position: relative;
  padding: var(--home-pad) 0;
  background: var(--deep);
  color: var(--glaze);
  overflow: hidden;
}

.page-home .online::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brass) 18%, var(--brass) 82%, transparent);
  opacity: .7;
}

.page-home .online__title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  color: var(--glaze);
}

.page-home .online__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .82);
}

.page-home .online__scale {
  list-style: none;
  margin: clamp(26px, 4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .online__band {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 16px 15px 18px;
  border-radius: var(--home-radius);
  border: 1px solid rgba(216, 228, 242, .22);
  background: rgba(255, 255, 255, .045);
}

.page-home .online__bar {
  display: block;
  height: 8px;
  border-radius: 999px;
  transition: width .3s var(--ease);
}

.page-home .online__bar--1 {
  width: 20%;
  background: rgba(216, 228, 242, .38);
}

.page-home .online__bar--2 {
  width: 38%;
  background: rgba(216, 228, 242, .6);
}

.page-home .online__bar--3 {
  width: 58%;
  background: var(--brass-soft);
}

.page-home .online__bar--4 {
  width: 78%;
  background: var(--brass);
}

.page-home .online__bar--5 {
  width: 100%;
  background: var(--neon);
}

.page-home .online__name {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--glaze);
}

.page-home .online__desc {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .72);
}

@keyframes page-home-online-breathe {
  0%, 100% { opacity: .76; }
  50% { opacity: 1; }
}

.page-home .online__band--peak .online__bar--5 {
  animation: page-home-online-breathe 4s ease-in-out infinite;
}

.page-home .online__foot {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .68);
}

/* ---------- 收藏搬家 ---------- */
.page-home .migrate {
  padding: var(--home-pad) 0;
  background: var(--paper);
}

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

.page-home .migrate__title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  color: var(--deep);
}

.page-home .migrate__lede {
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
}

.page-home .migrate__steps {
  list-style: none;
  margin: clamp(26px, 4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-home .migrate__step {
  position: relative;
  padding: 24px 22px 22px;
  border-radius: var(--home-radius);
  border: 1px solid var(--pale);
  border-top: 3px solid var(--brass);
  background: var(--glaze);
}

.page-home .migrate__step-tag {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--brass);
}

.page-home .migrate__step-title {
  margin: 12px 0 10px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.45;
  letter-spacing: .04em;
  color: var(--deep);
}

.page-home .migrate__step-text {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}

.page-home .migrate__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 收束 ---------- */
.page-home .closing {
  padding: var(--home-pad) 0;
  background: var(--blue);
  color: var(--glaze);
  overflow: hidden;
}

.page-home .closing__title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  color: var(--glaze);
}

.page-home .closing__text {
  margin: 16px 0 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .84);
}

.page-home .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-home .closing__figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
  border-radius: var(--home-radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .22);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .toc__list {
    grid-template-columns: repeat(auto-fit, minmax(176px, 1fr));
  }

  .page-home .floor__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-home .migrate__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-home .hero__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 48px);
  }

  .page-home .version__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-home .online__scale {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    align-items: stretch;
  }
}

@media (min-width: 1080px) {
  .page-home .floor__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .floor__card,
  .page-home .toc__link,
  .page-home .floor__card-link,
  .page-home .online__bar {
    transition: none;
  }

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

  .page-home .online__band--peak .online__bar--5 {
    animation: none;
    opacity: 1;
  }
}