.page-home {
  --home-band: clamp(46px, 6.4vw, 92px);
  --home-gap: clamp(20px, 3vw, 40px);
  display: block;
}

/* ---------- 上下文条 ---------- */
.page-home .crumbs {
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--mute);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  padding-bottom: var(--home-band);
}

.page-home .hero__grid {
  display: grid;
  gap: var(--home-gap);
  padding-top: clamp(22px, 3.4vw, 42px);
}

@media (min-width: 960px) {
  .page-home .hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: clamp(28px, 4vw, 58px);
    align-items: start;
  }
}

.page-home .hero__copy h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.05rem, 5.6vw, 3.6rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0.3em 0 0;
  max-width: 20ch;
}

.page-home .hero__copy .lede {
  margin: 20px 0 0;
  max-width: 40ch;
  color: #1d433f;
}

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

.page-home .save-tip {
  margin: 16px 0 0;
  padding: 12px 16px;
  background: var(--mist);
  border-left: 4px solid var(--gold);
  color: var(--ink);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.page-home .save-tip[hidden] {
  display: none;
}

.page-home .hero__jump {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-home .hero__jump li {
  border-bottom: 1px solid var(--line);
}

.page-home .hero__jump a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 2px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.9688rem;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.page-home .hero__jump a::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--electric);
}

.page-home .hero__jump a:hover,
.page-home .hero__jump a:focus-visible {
  color: var(--electric);
  padding-left: 8px;
}

.page-home .hero__frame {
  position: relative;
  margin: 0;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
  background: var(--carbon);
  overflow: hidden;
}

.page-home .hero__frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .hero__wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 46%;
  z-index: 1;
  pointer-events: none;
}

.page-home .hero__tag {
  position: absolute;
  z-index: 2;
  left: 16px;
  bottom: 16px;
  padding: 5px 10px;
  background: var(--sand);
  border: 2px solid var(--gold);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

/* ---------- 通用区块 ---------- */
.page-home .home-sec {
  padding-block: var(--home-band);
  border-top: 2px solid var(--ink);
}

.page-home .sec-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.6vw, 42px);
}

.page-home .sec-head h2,
.page-home .switch__body h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.45rem, 3.1vw, 2.05rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0.28em 0 0;
}

.page-home .sec-lede {
  margin: 14px 0 0;
  color: var(--mute);
  font-size: 1rem;
  line-height: 1.82;
}

.page-home [data-reveal].reveal-init {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.page-home [data-reveal].reveal-init.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 收藏三种方式 ---------- */
.page-home .save-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-soft);
}

.page-home .save-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px 14px;
  align-items: start;
  padding: 20px 18px;
  background: var(--paper);
}

.page-home .save-check {
  grid-column: 2;
  position: relative;
}

@media (min-width: 760px) {
  .page-home .save-item {
    grid-template-columns: 52px 1fr auto;
    align-items: center;
    padding: 22px 24px;
  }

  .page-home .save-check {
    grid-column: auto;
    justify-self: end;
  }
}

.page-home .save-num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--cinnabar);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
}

.page-home .save-body h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--ink);
}

.page-home .save-body p {
  margin: 0;
  color: var(--mute);
  font-size: 0.9375rem;
  line-height: 1.78;
}

.page-home .save-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--mute);
}

.page-home .save-check input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-home .save-box {
  position: relative;
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--ink);
  background: var(--paper);
}

.page-home .save-check input:checked + .save-box {
  background: var(--electric);
  border-color: var(--electric);
}

.page-home .save-check input:checked + .save-box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  transform: rotate(45deg);
}

.page-home .save-check input:checked ~ .save-txt {
  color: var(--electric);
}

.page-home .save-check input:focus-visible + .save-box {
  outline: 2px solid var(--electric);
  outline-offset: 2px;
}

.page-home .save-note {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 4px solid var(--ink);
  font-size: 0.9688rem;
  line-height: 1.82;
  color: var(--ink);
}

.page-home .save-note .mark {
  background: var(--sand);
  padding: 1px 6px;
}

/* ---------- 换手机登录 ---------- */
.page-home .switch__grid {
  display: grid;
  gap: var(--home-gap);
}

@media (min-width: 960px) {
  .page-home .switch__grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }
}

.page-home .switch__media {
  margin: 0;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  background: var(--mist);
}

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

.page-home .steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-home .steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
}

.page-home .step-num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--cinnabar);
  color: #ffffff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
}

.page-home .steps h3 {
  margin: 0 0 5px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.0313rem;
  color: var(--ink);
}

.page-home .steps p {
  margin: 0;
  color: var(--mute);
  font-size: 0.9375rem;
  line-height: 1.78;
}

.page-home .switch__body .btn {
  margin-top: 28px;
}

/* ---------- 使用指南 ---------- */
.page-home .guide {
  display: grid;
  gap: var(--home-gap);
}

@media (min-width: 960px) {
  .page-home .guide {
    grid-template-columns: 310px 1fr;
    align-items: start;
  }
}

.page-home .guide__cover {
  margin: 0;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  background: var(--mist);
}

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

.page-home .guide__rail {
  list-style: none;
  margin: 0;
  padding: 0 0 10px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 210px;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-home .guide__rail::-webkit-scrollbar {
  height: 8px;
}

.page-home .guide__rail::-webkit-scrollbar-track {
  background: var(--mist);
}

.page-home .guide__rail::-webkit-scrollbar-thumb {
  background: var(--line);
}

.page-home .guide-card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 196px;
  padding: 18px 16px 20px;
  border: 2px solid var(--ink);
  background: var(--paper);
}

.page-home .guide-card:nth-child(even) {
  background: var(--mist);
}

.page-home .guide-card:nth-child(5) {
  background: var(--sand);
}

.page-home .guide-idx {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--gold);
}

.page-home .guide-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}

.page-home .guide-card p {
  margin: 0;
  color: var(--mute);
  font-size: 0.875rem;
  line-height: 1.72;
}

.page-home .guide__foot {
  margin-top: 26px;
}

/* ---------- 两条设计 ---------- */
.page-home .design__grid {
  display: grid;
  gap: var(--home-gap);
}

@media (min-width: 960px) {
  .page-home .design__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

.page-home .design-card {
  padding: clamp(20px, 2.6vw, 30px);
}

.page-home .design-card h3 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1875rem;
  line-height: 1.35;
  color: var(--ink);
}

.page-home .design-card p {
  margin: 0 0 12px;
  color: var(--mute);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-home .design__fig {
  margin: 22px 0 0;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  background: var(--mist);
}

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

.page-home .design-card .panel {
  margin-top: 20px;
  border: 2px solid var(--ink);
  background: var(--paper);
}

.page-home .panel__head {
  position: relative;
  display: block;
  width: 100%;
  padding: 14px 44px 14px 16px;
  border: 0;
  background: var(--mist);
  text-align: left;
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.9688rem;
  color: var(--ink);
}

.page-home .panel__head::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--electric);
}

.page-home .panel__head[aria-expanded="true"] {
  border-bottom: 2px solid var(--ink);
}

.page-home .panel__head[aria-expanded="true"]::after {
  content: "–";
}

.page-home .panel__head:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: -3px;
}

.page-home .panel__body {
  padding: 16px;
}

.page-home .mini-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .mini-steps li {
  position: relative;
  padding-left: 24px;
  color: var(--mute);
  font-size: 0.9063rem;
  line-height: 1.78;
}

.page-home .mini-steps li::before {
  content: "▸";
  position: absolute;
  left: 4px;
  top: 0;
  color: var(--gold);
}

/* ---------- 常用入口 ---------- */
.page-home .entry-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

@media (min-width: 640px) {
  .page-home .entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-home .entry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .entry {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 12px;
  row-gap: 5px;
  align-content: start;
  height: 100%;
  padding: 18px 18px 20px;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: 4px 4px 0 var(--line);
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), background 0.18s var(--ease);
}

.page-home .entry:hover,
.page-home .entry:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink);
  background: var(--mist);
}

.page-home .entry-idx {
  grid-row: 1 / span 2;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
}

.page-home .entry-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.0625rem;
}

.page-home .entry-desc {
  color: var(--mute);
  font-size: 0.875rem;
  line-height: 1.72;
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry,
  .page-home .hero__jump a,
  .page-home [data-reveal].reveal-init {
    transition: none;
  }
}
</main>