.page-home {
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: 0;
}

.page-home img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

/* ---------- 框景首屏 ---------- */
.page-home .hero {
  padding: 28px 0 8px;
}

.page-home .hero__frame {
  position: relative;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 16px) top left / 100% 6px no-repeat,
    linear-gradient(180deg, rgba(53, 224, 214, 0.07), rgba(53, 224, 214, 0) 45%),
    var(--night);
  padding: 26px 18px 30px;
}

.page-home .hero__frame::before,
.page-home .hero__frame::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--cyan);
}

.page-home .hero__frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-home .hero__frame::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

.page-home .hero__grid {
  display: grid;
  gap: 32px;
}

.page-home .hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 7.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.012em;
  margin: 14px 0 0;
}

.page-home .hero__sub {
  margin: 18px 0 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

.page-home .hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
}

.page-home .hero__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .hero__stat dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-home .hero__stat dd {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.2;
  color: var(--cyan);
}

/* 右栏粘性说明卡 */
.page-home .hero__aside {
  position: relative;
}

.page-home .hero__card {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

.page-home .hero__figure {
  margin: 0 0 18px;
}

.page-home .hero__card-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 1.3;
  margin: 0 0 6px;
}

.page-home .hero__card-note {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-home .quick {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-home .quick__row {
  display: grid;
  gap: 3px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .quick__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan-soft);
}

.page-home .quick__val {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-home .hero__card-btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 主体网格与章节索引 ---------- */
.page-home .body-grid {
  display: grid;
  gap: 30px;
  padding: 56px 0 72px;
}

.page-home .sec-index {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-home .sec-index__link {
  display: block;
  padding: 8px 12px;
  border-left: 2px solid transparent;
  color: var(--slate);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-home .sec-index__link:hover {
  color: var(--cyan-soft);
}

.page-home .sec-index__link[data-active],
.page-home .sec-index__link[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(53, 224, 214, 0.06);
}

.page-home .sec-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-home .body-main {
  min-width: 0;
  display: grid;
  gap: 60px;
}

/* ---------- 章节通用 ---------- */
.page-home .chapter__head {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}

.page-home .chapter__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-home .chapter__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.008em;
  margin: 0;
}

.page-home .chapter__lead {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate);
}

.page-home .chapter__foot {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--slate);
}

.page-home .chapter a {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-home .chapter a:hover {
  color: var(--cyan);
}

.page-home .chapter .chip,
.page-home .chapter .btn {
  text-decoration: none;
}

/* ---------- 01 常用条目 ---------- */
.page-home .qlist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .qlist__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

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

.page-home .qlist__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-soft);
  padding-top: 4px;
}

.page-home .qlist__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  margin: 0 0 6px;
}

.page-home .qlist__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--slate);
}

.page-home .qlist__meta {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--slate);
  opacity: 0.75;
}

/* ---------- 02 两步对照 ---------- */
.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0 0 0 10px;
}

.page-home .steps__item {
  position: relative;
  padding: 0 0 28px 30px;
  border-left: 1px solid var(--line);
}

.page-home .steps__item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-home .steps__item::before {
  content: "";
  position: absolute;
  top: 6px;
  left: -5px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 224, 214, 0.16);
}

.page-home .steps__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.35;
  margin: 0 0 6px;
}

.page-home .steps__text {
  margin: 0;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--slate);
}

.page-home .verdict {
  margin: 26px 0 0;
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
}

.page-home .verdict__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan-soft);
}

.page-home .verdict__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper);
}

.page-home .compare__figure {
  margin: 26px 0 0;
}

/* ---------- 03 栏目 ---------- */
.page-home .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.page-home .chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan-soft);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-home .chip:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-home .chip__n {
  color: var(--slate);
}

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

.page-home .issue {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

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

.page-home .issue__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan-soft);
}

.page-home .issue__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  margin: 0;
}

.page-home .issue__text {
  margin: 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate);
}

.page-home .topics__figure {
  margin: 26px 0 0;
}

/* ---------- 04 小屏换机 ---------- */
.page-home .small__split {
  display: grid;
  gap: 28px;
}

.page-home .small__figure {
  align-self: start;
}

/* ---------- 05 服务与身份 ---------- */
.page-home .contacts {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .contacts__row {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  background: var(--panel);
}

.page-home .contacts__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-soft);
}

.page-home .contacts__val {
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .hero__frame {
    padding: 34px 30px 38px;
  }

  .page-home .contacts__row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
    padding: 16px 20px;
  }

  .page-home .qlist__item {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 18px;
    padding: 20px 0;
  }
}

@media (min-width: 860px) {
  .page-home .small__split {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 40px;
  }
}

@media (min-width: 960px) {
  .page-home .hero {
    padding: 40px 0 12px;
  }

  .page-home .hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
  }

  .page-home .hero__card {
    position: sticky;
    top: calc(var(--head-h) + 22px);
    padding: 22px;
  }

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

@media (min-width: 1000px) {
  .page-home .body-grid {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 56px;
    padding: 76px 0 96px;
  }

  .page-home .sec-index {
    position: sticky;
    top: calc(var(--head-h) + 26px);
    align-self: start;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-home .body-main {
    gap: 76px;
  }
}

@media (max-width: 999px) {
  .page-home .sec-index__link {
    border-left: 0;
    border-bottom: 2px solid transparent;
  }

  .page-home .sec-index__link[data-active],
  .page-home .sec-index__link[aria-current="true"] {
    border-left-color: transparent;
    border-bottom-color: var(--cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .sec-index__link,
  .page-home .chip {
    transition: none;
  }
}