.page-home {
  --axis-w: 240px;
  --card-pad: clamp(22px, 3vw, 34px);
  --hairline: #8C6D1F;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: var(--step0);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-home p {
  margin: 0;
}

.page-home a {
  color: inherit;
}

.page-home .home-path {
  max-width: 1440px;
  margin: 0 auto;
  padding: 22px var(--gutter) 0;
  font-size: var(--step-1);
  letter-spacing: .12em;
  color: var(--gold-old);
}

.page-home .home-shell {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px var(--gutter) 104px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

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

/* ---------- 索引轴 ---------- */
.page-home .home-axis {
  margin: 0 calc(var(--gutter) * -1);
  padding: 10px var(--gutter);
  position: sticky;
  top: var(--header-h-m);
  z-index: 30;
  background: rgba(14, 14, 16, .94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}

.page-home .home-axis .index-axis-title {
  display: none;
}

.page-home .home-axis-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.page-home .home-axis-list::-webkit-scrollbar {
  display: none;
}

.page-home .home-axis-list li {
  flex: 0 0 auto;
}

.page-home .home-axis .index-axis-link {
  display: inline-block;
  padding: 6px 12px;
  font-size: var(--step-1);
  color: rgba(244, 240, 230, .72);
  text-decoration: none;
  border: 1px solid var(--graphite);
  white-space: nowrap;
}

.page-home .home-axis .index-axis-link:hover,
.page-home .home-axis .index-axis-link:focus-visible {
  color: var(--gold-light);
  border-color: var(--gold-deep);
}

.page-home .home-axis .index-axis-link.is-active,
.page-home .home-axis .index-axis-link[aria-current="true"] {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(201, 162, 39, .08);
}

/* ---------- 首屏拼贴 ---------- */
.page-home .hero {
  position: relative;
  padding: 26px 0 0;
  isolation: isolate;
}

.page-home .hero-atmos {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.page-home .hero-atmos img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .38;
  filter: saturate(.65) contrast(1.08);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(14, 14, 16, .62) 0%, rgba(14, 14, 16, .9) 58%, var(--ink) 100%);
  pointer-events: none;
}

.page-home .hero-collage {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-home .hero-card {
  position: relative;
  padding: var(--card-pad);
  background: rgba(20, 21, 24, .93);
  display: flex;
  flex-direction: column;
}

.page-home .hero-card--brand {
  background: linear-gradient(142deg, rgba(26, 27, 31, .96) 0%, rgba(14, 14, 16, .97) 100%);
}

.page-home .hero-card--catalog,
.page-home .hero-card--season {
  background: rgba(14, 14, 16, .9);
}

.page-home .hero-card--brand .plate {
  align-self: flex-start;
}

.page-home .hero-card--brand h1 {
  margin: 16px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(29px, 5.4vw, 52px);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-home .hero-lead {
  max-width: 58ch;
  font-size: var(--step0);
  line-height: 1.75;
  color: rgba(244, 240, 230, .8);
}

.page-home .hero-facts {
  margin: 22px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--graphite);
  display: grid;
  gap: 8px;
  font-size: var(--step-1);
  color: rgba(244, 240, 230, .78);
}

.page-home .hero-facts .mono {
  margin-right: 6px;
  color: var(--gold);
  font-size: var(--step0);
}

.page-home .hero-cta {
  margin-top: 24px;
}

.page-home .login-plate {
  margin: calc(var(--card-pad) * -1);
  margin-bottom: 20px;
  overflow: hidden;
}

.page-home .login-plate img {
  display: block;
  width: 100%;
  height: 148px;
  object-fit: cover;
  opacity: .92;
}

.page-home .hero-card-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--step1);
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--cream);
}

.page-home .hero-card-text {
  font-size: var(--step-1);
  line-height: 1.72;
  color: rgba(244, 240, 230, .76);
}

.page-home .entry-addr {
  margin: 16px 0 14px;
  padding: 9px 12px;
  font-size: var(--step-1);
  color: var(--gold);
  border: 1px dashed var(--gold-deep);
  overflow-wrap: anywhere;
}

.page-home .hero-card--login .copy-btn {
  align-self: flex-start;
  margin-top: auto;
}

.page-home .hero-card-more {
  margin-top: auto;
  padding-top: 16px;
  font-size: var(--step-1);
}

.page-home .hero-card-more a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-deep);
  padding-bottom: 2px;
}

.page-home .hero-card-more a:hover {
  color: var(--gold-light);
  border-color: var(--gold);
}

.page-home .hero-mini {
  margin: 0 0 10px;
  font-size: var(--step-1);
  letter-spacing: .2em;
  color: var(--gold-old);
}

/* ---------- 章节 ---------- */
.page-home .chapter {
  padding-top: 64px;
  scroll-margin-top: calc(var(--header-h-m) + 84px);
}

.page-home .chapter-head {
  display: grid;
  gap: 8px;
  margin-bottom: 36px;
}

.page-home .chapter-num {
  margin: 0;
  font-size: clamp(38px, 6vw, 58px);
  line-height: 1;
  letter-spacing: .06em;
  color: var(--gold);
  opacity: .85;
}

.page-home .chapter-kicker {
  margin: 0;
  font-size: var(--step-1);
  letter-spacing: .22em;
  color: var(--gold-old);
}

.page-home .chapter-title {
  margin: 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.2vw, 41px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-home .chapter-lead {
  max-width: 68ch;
  margin-top: 6px;
  font-size: var(--step0);
  line-height: 1.75;
  color: rgba(244, 240, 230, .78);
}

.page-home .chapter .figure {
  margin: 0 0 32px;
}

.page-home .chapter .figure-frame {
  border: 1px solid var(--hairline);
  overflow: hidden;
}

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

.page-home .chapter .figure-caption {
  margin-top: 12px;
  font-size: var(--step-1);
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 六类目录 ---------- */
.page-home .catalog-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-home .catalog-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--card-pad);
  background: var(--charcoal);
  transition: background .18s var(--ease);
}

.page-home .catalog-item:hover {
  background: var(--graphite);
}

.page-home .catalog-num {
  margin: 0;
  font-size: var(--step2);
  line-height: 1;
  color: var(--gold);
}

.page-home .catalog-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step1);
  font-weight: 600;
  color: var(--cream);
}

.page-home .catalog-desc {
  font-size: var(--step-1);
  line-height: 1.72;
  color: rgba(244, 240, 230, .8);
}

.page-home .catalog-fit {
  margin-top: 2px;
  padding-top: 10px;
  font-size: var(--step-1);
  line-height: 1.7;
  color: var(--gold-light);
  border-top: 1px solid var(--graphite);
}

.page-home .catalog-link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-size: var(--step-1);
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-deep);
}

.page-home .catalog-link:hover {
  color: var(--gold-light);
  border-color: var(--gold);
}

/* ---------- 安装三步 ---------- */
.page-home .install-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

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

.page-home .install-step {
  position: relative;
  padding: 0 0 30px 30px;
  border-left: 1px solid var(--gold-deep);
}

.page-home .install-step:last-child {
  padding-bottom: 0;
}

.page-home .install-step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(14, 14, 16, .95);
}

.page-home .step-num {
  margin: 0 0 4px;
  font-size: var(--step-1);
  letter-spacing: .2em;
  color: var(--gold-old);
}

.page-home .install-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: var(--step1);
  font-weight: 600;
  color: var(--cream);
}

.page-home .install-step p {
  max-width: 56ch;
  font-size: var(--step0);
  line-height: 1.75;
  color: rgba(244, 240, 230, .78);
}

.page-home .install-figure {
  margin: 0;
}

.page-home .install-figure .figure-frame {
  border: 1px solid var(--hairline);
  overflow: hidden;
}

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

.page-home .install-figure .figure-caption {
  margin-top: 12px;
  font-size: var(--step-1);
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 版本号对照 ---------- */
.page-home .version-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-home .version-card {
  padding: 26px;
  background: var(--paper);
  border: 1px solid var(--gold-light);
  box-shadow: var(--shadow-anchor);
  transition: transform .16s var(--ease), box-shadow .16s var(--ease);
}

.page-home .version-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 26px 52px -26px rgba(0, 0, 0, .95), 0 0 0 1.5px var(--gold);
}

.page-home .version-card .anchor-card-ver {
  margin: 0 0 8px;
  font-size: clamp(30px, 5vw, 41px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--ink);
  white-space: nowrap;
}

.page-home .version-card .anchor-card-meta {
  margin: 0;
  font-size: var(--step-1);
  letter-spacing: .06em;
  color: var(--crimson);
}

.page-home .version-text {
  max-width: 66ch;
  font-size: var(--step0);
  line-height: 1.78;
  color: rgba(244, 240, 230, .8);
}

.page-home .version-notes {
  margin: 22px 0 26px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-home .version-notes li {
  position: relative;
  padding-left: 20px;
  font-size: var(--step-1);
  line-height: 1.72;
  color: rgba(244, 240, 230, .78);
}

.page-home .version-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--gold);
}

/* ---------- 当季版本 ---------- */
.page-home .season-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-home .season-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--card-pad);
  background: var(--charcoal);
}

.page-home .season-code {
  margin: 0;
  font-size: var(--step-1);
  letter-spacing: .22em;
  color: var(--gold-old);
}

.page-home .season-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step2);
  font-weight: 600;
  color: var(--cream);
}

.page-home .season-count {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: var(--step-1);
  color: var(--gold-light);
}

.page-home .season-count .mono {
  font-size: var(--step3);
  line-height: 1;
  color: var(--gold);
}

.page-home .season-desc {
  font-size: var(--step-1);
  line-height: 1.72;
  color: rgba(244, 240, 230, .78);
}

.page-home .season-card .tag-label {
  margin-top: auto;
}

.page-home .season-more {
  margin-top: 24px;
  font-size: var(--step-1);
  line-height: 1.75;
  color: var(--steel);
}

.page-home .season-more a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-deep);
}

.page-home .season-more a:hover {
  color: var(--gold-light);
  border-color: var(--gold);
}

/* ---------- 服务通道 ---------- */
.page-home .service-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-home .service-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: var(--card-pad);
  background: var(--charcoal);
}

.page-home .service-card .plate {
  align-self: flex-start;
}

.page-home .service-strong {
  font-size: var(--step0);
  line-height: 1.6;
  color: var(--gold-light);
  overflow-wrap: anywhere;
}

.page-home .service-note {
  font-size: var(--step-1);
  line-height: 1.74;
  color: rgba(244, 240, 230, .78);
}

.page-home .service-note.mono {
  color: var(--gold-old);
  letter-spacing: .06em;
}

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

.page-home .service-list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--step-1);
  line-height: 1.7;
  color: rgba(244, 240, 230, .78);
}

.page-home .service-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--crimson);
}

.page-home .service-more {
  margin-top: 24px;
  font-size: var(--step-1);
  line-height: 1.75;
  color: var(--steel);
}

.page-home .service-more a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-deep);
}

.page-home .service-more a:hover {
  color: var(--gold-light);
  border-color: var(--gold);
}

/* ---------- 复制按钮落位 ---------- */
.page-home .copy-btn.is-copied {
  color: var(--gold);
  border-color: var(--gold);
}

.page-home :focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .catalog-list,
  .page-home .season-grid,
  .page-home .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-home .install-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: start;
    gap: clamp(28px, 3.4vw, 52px);
  }

  .page-home .version-panel {
    grid-template-columns: minmax(230px, .58fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }
}

@media (min-width: 900px) {
  .page-home .hero {
    padding-top: 34px;
  }

  .page-home .hero-collage {
    grid-template-columns: 1.35fr 1fr 1fr;
    grid-template-rows: auto auto;
  }

  .page-home .hero-card--brand {
    grid-column: 1 / 3;
    grid-row: 1;
  }

  .page-home .hero-card--login {
    grid-column: 3 / 4;
    grid-row: 1 / 3;
  }

  .page-home .hero-card--catalog {
    grid-column: 1 / 2;
    grid-row: 2;
  }

  .page-home .hero-card--season {
    grid-column: 2 / 3;
    grid-row: 2;
  }
}

@media (min-width: 1024px) {
  .page-home .home-shell {
    grid-template-columns: var(--axis-w) minmax(0, 1fr);
    column-gap: clamp(30px, 3.4vw, 60px);
    padding-top: 34px;
  }

  .page-home .home-axis {
    position: sticky;
    top: calc(var(--header-h) + 30px);
    align-self: start;
    margin: 0;
    padding: 34px 24px 30px 0;
    max-height: calc(100vh - var(--header-h) - 60px);
    overflow-y: auto;
    background: transparent;
    backdrop-filter: none;
    border-bottom: none;
    border-right: 1px solid var(--hairline);
  }

  .page-home .home-axis .index-axis-title {
    display: block;
    margin: 0 0 16px;
    font-size: var(--step-1);
    letter-spacing: .24em;
    color: var(--gold-old);
  }

  .page-home .home-axis-list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-home .home-axis-list li + li {
    margin-top: 4px;
  }

  .page-home .home-axis .index-axis-link {
    display: block;
    padding: 9px 0 9px 18px;
    border: none;
    border-left: 2px solid transparent;
    font-size: var(--step-1);
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .page-home .home-axis .index-axis-link:hover,
  .page-home .home-axis .index-axis-link:focus-visible {
    color: var(--gold-light);
    border-left-color: var(--gold-deep);
    background: transparent;
  }

  .page-home .home-axis .index-axis-link.is-active,
  .page-home .home-axis .index-axis-link[aria-current="true"] {
    color: var(--gold);
    border-left-color: var(--crimson);
    background: rgba(201, 162, 39, .06);
  }

  .page-home .chapter {
    padding-top: 96px;
    scroll-margin-top: calc(var(--header-h) + 26px);
  }

  .page-home .chapter-head {
    margin-bottom: 42px;
  }
}

@media (min-width: 1100px) {
  .page-home .catalog-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .season-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-home .service-card--wide {
    grid-column: span 3;
  }
}

@media (max-width: 619px) {
  .page-home .chapter-title {
    max-width: none;
  }

  .page-home .hero-card--brand h1 {
    font-size: clamp(26px, 8.4vw, 34px);
  }

  .page-home .service-strong {
    font-size: var(--step-1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .catalog-item,
  .page-home .version-card,
  .page-home .copy-btn {
    transition: none;
  }

  .page-home .version-card:hover {
    transform: none;
  }
}