/* ===== 首页 · 渠道档案总索引 ===== */
.page-home {
  --home-rowgap: clamp(16px, 1.8vw, 24px);
  background: var(--paper);
  color: var(--ink);
}

.page-home h1,
.page-home h2,
.page-home h3 {
  font-family: var(--font-narrow);
  font-weight: 800;
}

.page-home h2 {
  margin: 8px 0 0;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--ink);
}

.page-home p {
  margin: 0;
}

.page-home .section--ink h2 {
  color: var(--paper);
}

.page-home figcaption {
  margin-top: 10px;
}

.page-home figure {
  margin: 0;
}

.page-home .figure__media {
  position: relative;
  overflow: hidden;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
}

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

.page-home .home-note {
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 上下文条 ---------- */
.page-home .home-ctx {
  padding: calc(var(--header-h) + 20px) 0 0;
}

.page-home .home-ctx__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--stone);
}

.page-home .home-ctx__path {
  color: var(--ink);
  font-weight: 600;
  letter-spacing: .04em;
}

.page-home .home-ctx__code {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--stone);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(30px, 4.6vw, 58px) 0 clamp(52px, 7vw, 104px);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .7), rgba(0, 0, 0, 0) 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .7), rgba(0, 0, 0, 0) 76%);
  pointer-events: none;
}

.page-home .home-hero__grid {
  display: grid;
  gap: clamp(30px, 4vw, 54px);
}

.page-home .home-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(36px, 8vw, 80px);
  line-height: 1.03;
  letter-spacing: -.018em;
  color: var(--ink);
}

.page-home .home-hero__mark {
  color: var(--red);
}

.page-home .home-hero__lead .lead {
  max-width: 50ch;
  margin-top: 22px;
  font-size: clamp(14.5px, 1.3vw, 16.5px);
  line-height: 1.88;
  color: var(--ink-soft);
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-home .home-hero__aside {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-home .home-hero__aside .figure__media::after {
  content: "YLG · ARCHIVE";
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 6px 11px;
  background: var(--red);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
}

.page-home .home-stats {
  margin: 0;
  border-top: 2px solid var(--ink);
}

.page-home .home-stats__row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .home-stats__row dt {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  color: var(--stone);
}

.page-home .home-stats__row dd {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
}

/* ---------- 核心入口 ---------- */
.page-home .home-entries {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(26px, 3.6vw, 48px);
}

.page-home .home-entry {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 20px 20px;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  border-top: 3px solid var(--ink);
  transition: border-color .45s var(--ease), transform .45s var(--ease),
    box-shadow .45s var(--ease), background-color .45s var(--ease);
}

.page-home .home-entry:hover,
.page-home .home-entry:focus-within {
  transform: translateY(-4px);
  border-top-color: var(--red);
  background: var(--paper);
  box-shadow: var(--shadow-1);
}

.page-home .home-entry__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--red);
}

.page-home .home-entry__title {
  margin: 0;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.25;
  color: var(--ink);
}

.page-home .home-entry__body {
  flex: 1 1 auto;
  font-size: 13.5px;
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-home .home-entry__link {
  align-self: flex-start;
  padding-bottom: 2px;
  border-bottom: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--red);
  text-decoration: none;
  transition: color .3s var(--ease);
}

.page-home .home-entry__link:hover {
  color: var(--ink);
}

/* ---------- 区域响应 ---------- */
.page-home .home-regions {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  margin-top: clamp(26px, 3.6vw, 48px);
}

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

.page-home .home-limits__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .home-limits__area {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .home-limits__time {
  align-self: start;
  padding: 3px 9px;
  border: 1px solid rgba(179, 37, 27, .24);
  background: rgba(179, 37, 27, .08);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--red);
  white-space: nowrap;
}

.page-home .home-limits__desc {
  grid-column: 1 / -1;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.72;
  color: var(--stone);
}

/* ---------- 时间线 ---------- */
.page-home .home-timeline {
  margin: clamp(26px, 3.6vw, 48px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(24px, 3vw, 36px);
  border-left: 1px solid var(--line-2);
}

.page-home .home-timeline__item {
  position: relative;
  padding-left: clamp(22px, 3vw, 40px);
}

.page-home .home-timeline__item::before {
  content: "";
  position: absolute;
  top: 7px;
  left: -5px;
  width: 9px;
  height: 9px;
  background: var(--red);
  transform: rotate(45deg);
}

.page-home .home-timeline__year {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--red);
}

.page-home .home-timeline__title {
  margin: 8px 0 0;
  font-size: clamp(18px, 1.8vw, 21px);
  line-height: 1.3;
  color: var(--ink);
}

.page-home .home-timeline__body {
  margin-top: 8px;
  max-width: 40ch;
  font-size: 13.5px;
  line-height: 1.82;
  color: var(--ink-soft);
}

/* ---------- 编号规则 ---------- */
.page-home .home-code {
  display: grid;
  gap: clamp(28px, 3.6vw, 52px);
}

.page-home .home-code .figure__media {
  border-color: var(--line-paper);
  background: var(--indigo-deep);
}

.page-home .home-code .mono-label {
  color: var(--paper-3);
}

.page-home .home-code__lead {
  margin-top: 18px;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.88;
  color: rgba(245, 240, 230, .78);
}

.page-home .home-code__sample {
  margin-top: 22px;
  padding: 12px 16px;
  border-left: 3px solid var(--red);
  background: rgba(245, 240, 230, .06);
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.5vw, 16px);
  letter-spacing: .12em;
  color: var(--paper);
  word-break: break-word;
}

.page-home .home-code__parts {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-paper);
}

.page-home .home-code__parts li {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: 8px 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-paper);
}

.page-home .home-code__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--paper-3);
}

.page-home .home-code__v {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--paper);
}

/* ---------- 查阅方式 ---------- */
.page-home .home-lookup {
  display: grid;
  gap: clamp(26px, 3.4vw, 46px);
  margin-top: clamp(26px, 3.6vw, 48px);
}

.page-home .home-dim {
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--red);
}

.page-home .home-dim + .home-dim {
  margin-top: 24px;
}

.page-home .home-dim__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--stone);
}

.page-home .home-dim h3 {
  margin: 7px 0 0;
  font-size: 20px;
  line-height: 1.3;
  color: var(--ink);
}

.page-home .home-dim p {
  margin-top: 9px;
  font-size: 13.5px;
  line-height: 1.82;
  color: var(--ink-soft);
}

/* ---------- 咨询入口 ---------- */
.page-home .home-band__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}

.page-home .home-band__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-home .home-band__mail {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ink);
  word-break: break-all;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-home .home-entries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-home .home-band__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .9fr);
    align-items: center;
    gap: clamp(32px, 5vw, 80px);
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .95fr);
    align-items: start;
    gap: clamp(34px, 5vw, 72px);
  }

  .page-home .home-code {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    align-items: start;
  }

  .page-home .home-lookup {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-home .home-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    border-left: 0;
    border-top: 1px solid var(--line-2);
  }

  .page-home .home-timeline__item {
    padding: 32px 22px 0 0;
  }

  .page-home .home-timeline__item::before {
    top: -5px;
    left: 0;
  }
}

@media (min-width: 980px) {
  .page-home .home-regions {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
    gap: clamp(32px, 4vw, 62px);
  }
}

@media (min-width: 1060px) {
  .page-home .home-entries {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--home-rowgap);
    align-items: start;
  }

  .page-home .home-entry:nth-child(2),
  .page-home .home-entry:nth-child(4) {
    margin-top: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-entry {
    transition: none;
  }

  .page-home .home-entry:hover,
  .page-home .home-entry:focus-within {
    transform: none;
  }
}