.page-home {
  background: var(--paper);
  color: var(--graphite);
  font-family: var(--font-body);
  line-height: 1.55;
  overflow-x: hidden;
}

.page-home .shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ===== 封面首屏 ===== */
.page-home .hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding-top: clamp(20px, 5vw, 44px);
  padding-bottom: clamp(30px, 5vw, 60px);
  overflow: hidden;
}

.page-home .hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: clamp(90px, 16vw, 210px);
  height: clamp(90px, 16vw, 210px);
  background: linear-gradient(135deg, transparent 50%, rgba(200, 162, 74, 0.16) 50%);
  pointer-events: none;
}

.page-home .hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.page-home .breadcrumb {
  margin: 0 0 clamp(22px, 4vw, 42px);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-home .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-home .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-home .breadcrumb li + li::before {
  content: "/";
  color: rgba(247, 242, 230, 0.4);
}

.page-home .breadcrumb a {
  color: var(--gold-light);
  text-decoration: none;
}

.page-home .breadcrumb a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-home .breadcrumb [aria-current="page"] {
  color: rgba(247, 242, 230, 0.62);
}

.page-home .hero-grid {
  display: grid;
  gap: clamp(26px, 5vw, 48px);
}

.page-home .hero-lead {
  min-width: 0;
}

.page-home .hero .eyebrow {
  color: var(--gold-light);
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
}

.page-home .hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.25rem, 7.6vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .hero h1 span {
  display: block;
  margin-top: 6px;
  color: var(--gold);
}

.page-home .hero-copy {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 42ch;
  font-size: clamp(0.98rem, 2.2vw, 1.12rem);
  color: rgba(247, 242, 230, 0.78);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .hero-meta {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--sage);
}

.page-home .hero-track {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--hairline-light);
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.page-home .hero-track .track__item {
  margin: 0;
}

.page-home .hero-track .track__item a {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  grid-template-areas:
    "num label"
    "num note";
  gap: 2px 14px;
  padding: 14px 6px 14px 18px;
  position: relative;
  text-decoration: none;
  color: var(--paper);
  transition: background 0.18s var(--ease);
}

.page-home .hero-track .track__item a::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: transparent;
  transition: background 0.18s var(--ease);
}

.page-home .hero-track .track__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--gold);
  line-height: 1.3;
}

.page-home .hero-track .track__label {
  grid-area: label;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
}

.page-home .hero-track .track__note {
  grid-area: note;
  font-size: 0.78rem;
  line-height: 1.45;
  color: rgba(247, 242, 230, 0.6);
}

.page-home .hero-track a:hover,
.page-home .hero-track a[data-active="true"] {
  background: rgba(200, 162, 74, 0.1);
}

.page-home .hero-track a[data-active="true"]::before {
  background: var(--gold);
}

.page-home .hero-track a:hover .track__label {
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-underline-offset: 4px;
}

.page-home .hero-fold {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: clamp(26px, 4.5vw, 46px);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--hairline-light);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--gold-light);
  text-decoration: none;
}

.page-home .hero-fold::after {
  content: "";
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid var(--gold);
}

.page-home .hero-fold:hover {
  border-bottom-color: var(--gold);
}

/* ===== 通用章节 ===== */
.page-home .section {
  padding-top: clamp(40px, 6vw, 88px);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-home .section--paper2 {
  background: var(--paper-2);
}

.page-home .sec-head {
  max-width: 64ch;
  margin-bottom: clamp(22px, 3.6vw, 42px);
}

.page-home .sec-head .eyebrow {
  color: var(--ink-2);
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.page-home .sec-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.4vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .sec-lead {
  margin: 14px 0 0;
  font-size: clamp(0.96rem, 1.9vw, 1.06rem);
  color: #3b4247;
}

/* ===== 首次访问查询 ===== */
.page-home .query-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

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

.page-home .step-block {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 18px 14px 18px 12px;
  border-bottom: 1px solid var(--hairline);
  transition: background 0.2s var(--ease);
}

.page-home .step-block[data-active="true"] {
  background: linear-gradient(90deg, rgba(200, 162, 74, 0.16), transparent 72%);
}

.page-home .step-block__num {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.4;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-home .step-block__body {
  min-width: 0;
}

.page-home .step-block h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
}

.page-home .step-block p {
  margin: 0;
  font-size: 0.94rem;
  color: #3b4247;
}

.page-home .query-figure {
  min-width: 0;
}

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

.page-home .figure__frame {
  border: 1px solid var(--hairline);
  background: var(--paper-2);
  overflow: hidden;
}

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

.page-home .figure__cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.5;
  color: var(--sage);
}

.page-home .note {
  margin: 18px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--cinnabar);
  background: var(--paper-2);
  font-size: 0.88rem;
  color: var(--graphite);
}

.page-home .sec-note {
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--gold);
  font-size: 0.95rem;
  color: var(--ink-2);
}

.page-home .export-figure {
  margin-top: clamp(26px, 4vw, 44px);
  max-width: 720px;
}

/* ===== 版本对照 ===== */
.page-home .compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  min-width: 0;
}

.page-home .compare .compare__col {
  min-width: 0;
  padding: clamp(20px, 3vw, 32px);
  background: var(--paper);
  border-top: 3px solid var(--gold);
}

.page-home .plate__index {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-home .plate__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--ink);
}

.page-home .plate__body {
  margin: 0 0 16px;
  font-size: 0.95rem;
  color: #3b4247;
}

.page-home .plate__link {
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink);
  text-decoration: none;
  transition: background 0.16s var(--ease);
}

.page-home .plate__link:hover {
  background: var(--gold-light);
}

.page-home .compare-figure {
  margin-top: clamp(26px, 4vw, 44px);
}

/* ===== 回访清单 ===== */
.page-home .returning-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

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

.page-home .entry-head {
  display: none;
}

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

.page-home .entry-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-soft);
}

.page-home .entry-name {
  font-weight: 700;
  color: var(--ink);
}

.page-home .entry-use {
  font-size: 0.92rem;
  color: #3b4247;
}

.page-home .entry-path {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--sage);
  word-break: break-word;
}

.page-home .entry-link {
  justify-self: start;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  text-decoration: none;
  transition: background 0.16s var(--ease);
}

.page-home .entry-link:hover {
  background: var(--gold-light);
}

.page-home .returns-note {
  margin: 18px 0 0;
  font-size: 0.9rem;
  color: #3b4247;
}

.page-home .returns-note a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
}

.page-home .returns-note a:hover {
  background: var(--gold-light);
}

.page-home .returns-figure {
  min-width: 0;
}

/* ===== 更新与联系 ===== */
.page-home .latest-grid {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  align-items: start;
}

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

.page-home .fold {
  border: 1px solid var(--hairline);
  background: var(--paper);
}

.page-home .fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.page-home .fold summary::-webkit-details-marker {
  display: none;
}

.page-home .fold summary::after {
  content: "＋";
  color: var(--gold);
  font-size: 1rem;
  line-height: 1;
}

.page-home .fold[open] summary {
  border-bottom: 1px solid var(--hairline-soft);
}

.page-home .fold[open] summary::after {
  content: "－";
}

.page-home .fold-list {
  list-style: none;
  margin: 0;
  padding: 16px 18px 20px;
  display: grid;
  gap: 10px;
}

.page-home .fold-list li {
  padding-left: 12px;
  border-left: 2px solid var(--gold-light);
  font-size: 0.9rem;
  color: #3b4247;
}

.page-home .latest-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.page-home .latest-links a {
  padding-bottom: 2px;
  border-bottom: 1px solid var(--gold);
  color: var(--ink);
  text-decoration: none;
}

.page-home .latest-links a:hover {
  background: var(--gold-light);
}

.page-home .contact-panel {
  min-width: 0;
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--ink);
  color: var(--paper);
}

.page-home .contact-eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-home .contact-list {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-home .contact-list dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(247, 242, 230, 0.56);
}

.page-home .contact-list dd {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 0.98rem;
  color: var(--paper);
  word-break: break-word;
}

.page-home .contact-tip {
  margin: 20px 0 22px;
  padding-left: 12px;
  border-left: 2px solid var(--cinnabar);
  font-size: 0.86rem;
  line-height: 1.6;
  color: rgba(247, 242, 230, 0.74);
}

/* ===== 响应式 ===== */
@media (min-width: 700px) {
  .page-home .query-grid {
    grid-template-columns: 1.08fr 0.92fr;
  }

  .page-home .compare {
    grid-template-columns: 1fr 1fr;
  }

  .page-home .entry-row {
    grid-template-columns: 1.1fr 1.5fr auto;
    align-items: center;
    gap: 8px 22px;
  }

  .page-home .entry-link {
    justify-self: end;
  }
}

@media (min-width: 820px) {
  .page-home .entry-head {
    display: grid;
    grid-template-columns: 1.1fr 1.5fr 1.4fr auto;
    gap: 22px;
    padding: 0 0 10px;
    border-bottom: 1px solid var(--hairline);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: var(--sage);
  }

  .page-home .entry-row {
    grid-template-columns: 1.1fr 1.5fr 1.4fr auto;
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 32px;
    align-items: start;
  }

  .page-home .hero-lead {
    grid-column: 1 / 8;
  }

  .page-home .hero-track {
    grid-column: 9 / 13;
    align-self: start;
    margin-top: 6px;
  }

  .page-home .latest-grid {
    grid-template-columns: 1.05fr 0.95fr;
  }
}

@media (min-width: 1024px) {
  .page-home .returning-grid {
    grid-template-columns: 1.32fr 0.68fr;
    gap: 48px;
  }

  .page-home .returns-figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-track .track__item a,
  .page-home .hero-track .track__item a::before,
  .page-home .step-block,
  .page-home .plate__link,
  .page-home .entry-link {
    transition: none;
  }
}
<<<END>>>