.page-home {
  background: var(--color-ivory);
  overflow-x: clip;
}

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

.page-home .container {
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 20px;
}

/* ---------- 卷首封面 ---------- */
.page-home .home-cover {
  position: relative;
  background: var(--color-deep-blue);
  background-image: radial-gradient(circle at 1px 1px, rgba(212, 175, 55, 0.14) 1px, transparent 1px);
  background-size: 22px 22px;
  padding: 48px 0 0;
  overflow: hidden;
}

.page-home .home-cover__aura {
  position: absolute;
  top: -80px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.28), transparent 70%);
  pointer-events: none;
}

.page-home .home-cover__copy {
  position: relative;
  z-index: 1;
  color: var(--color-ivory);
}

.page-home .cover__kicker {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 12px;
  border: 1px solid rgba(212, 175, 55, 0.6);
  border-radius: 999px;
  color: var(--color-gold-light);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-home .cover__title {
  font-family: var(--font-serif);
  font-size: clamp(34px, 8vw, 58px);
  line-height: 1.16;
  color: #ffffff;
  margin: 0 0 18px;
}

.page-home .cover__title-sub {
  display: block;
  color: var(--color-gold-light);
  font-weight: 700;
}

.page-home .cover__abstract {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.9;
  color: rgba(245, 240, 232, 0.85);
  max-width: 580px;
  margin: 0 0 22px;
}

.page-home .cover__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  list-style: none;
  padding: 0;
  margin: 0 0 40px;
}

.page-home .cover__meta li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-sans);
  font-size: 13px;
  color: rgba(245, 240, 232, 0.72);
}

.page-home .cover__meta b {
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--color-gold);
  font-weight: 600;
}

.page-home .home-cover__figure {
  position: relative;
  margin: 0;
  padding: 10px 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 520px;
}

.page-home .home-cover__img {
  width: 100%;
  height: auto;
  border-radius: 2px;
  object-fit: cover;
}

.page-home .home-cover__caption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold-light);
  text-align: center;
  letter-spacing: 0.06em;
}

/* ---------- 全站目录索引 ---------- */
.page-home .cover-index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 0;
  margin-top: 44px;
  padding: 14px 20px;
  background: rgba(30, 58, 95, 0.92);
  border-top: 1px solid rgba(212, 175, 55, 0.4);
}

.page-home .cover-index__label {
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold);
  letter-spacing: 0.1em;
}

.page-home .cover-index a {
  color: var(--color-ivory);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 4px 10px;
  text-decoration: none;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.page-home .cover-index a[aria-current="page"] {
  color: var(--color-gold-light);
}

/* ---------- 面包屑与面板统一定位 ---------- */
.page-home .breadcrumb {
  padding-top: 24px;
}

.page-home .panel {
  padding-top: 56px;
  padding-bottom: 20px;
}

.page-home .panel__head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 32px;
}

.page-home .panel__no {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--color-deep-blue-2);
  border: 1px solid rgba(10, 31, 68, 0.2);
  padding: 6px 10px;
  border-radius: 4px;
  background: var(--color-ivory);
  white-space: nowrap;
}

.page-home .panel__label {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.page-home .panel__head-text {
  min-width: 0;
}

.page-home .section-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 28px;
  line-height: 1.3;
  color: var(--color-deep-blue);
}

/* ---------- 核心分类检索 ---------- */
.page-home .cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-home .cat-card {
  --card-accent: var(--color-gold);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 28px 24px 22px;
  background: var(--color-ivory);
  border: 1px solid rgba(10, 31, 68, 0.12);
  border-radius: 4px;
  box-shadow: var(--shadow-panel);
  text-decoration: none;
  color: var(--color-deep-blue);
  overflow: hidden;
  transform: rotate(-0.35deg);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.page-home .cat-card:nth-child(even) {
  transform: rotate(0.35deg);
  margin-top: 12px;
}

.page-home .cat-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--card-accent);
}

.page-home .cat-card::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.18), transparent 70%);
  opacity: 0;
  transition: opacity 0.35s ease, transform 0.45s var(--ease-out);
  pointer-events: none;
}

.page-home .cat-card:hover {
  transform: rotate(0deg) translateY(-6px);
  box-shadow: 0 0 0 1px var(--card-accent), 0 18px 40px rgba(10, 31, 68, 0.12);
}

.page-home .cat-card:hover::after {
  opacity: 1;
  transform: scale(1.2);
}

.page-home .cat-card--red { --card-accent: var(--color-red); }
.page-home .cat-card--gold { --card-accent: var(--color-gold); }
.page-home .cat-card--blue { --card-accent: var(--color-deep-blue-2); }
.page-home .cat-card--ivory { --card-accent: var(--color-terracotta); }

.page-home .cat-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border: 1px solid var(--card-accent);
  border-radius: 50%;
  color: var(--card-accent);
}

.page-home .cat-card__icon svg {
  width: 28px;
  height: 28px;
}

.page-home .cat-card__flag {
  margin-bottom: 10px;
}

.page-home .cat-card__title {
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--color-deep-blue);
}

.page-home .cat-card__text {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(10, 31, 68, 0.72);
  margin: 0 0 18px;
}

.page-home .cat-card__go {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--card-accent);
  text-decoration: none;
  letter-spacing: 0.04em;
}

/* ---------- 平台承诺 ---------- */
.page-home .promise-panel {
  position: relative;
  margin-top: 56px;
  background: var(--color-deep-blue);
  color: var(--color-ivory);
  overflow: hidden;
  padding: 64px 0;
}

.page-home .promise-panel__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
}

.page-home .promise-panel .container {
  position: relative;
  z-index: 1;
}

.page-home .promise-panel__head .panel__no {
  border-color: rgba(212, 175, 55, 0.5);
  color: var(--color-gold);
  background: rgba(10, 31, 68, 0.6);
}

.page-home .promise-panel__head .panel__label {
  color: var(--color-gold-light);
}

.page-home .promise-panel__head .section-title {
  color: var(--color-ivory);
}

.page-home .promise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-home .promise-item {
  border: 1px solid rgba(212, 175, 55, 0.28);
  background: rgba(30, 58, 95, 0.62);
  padding: 20px 16px;
  border-radius: 6px;
  transition: border-color 0.35s ease, transform 0.35s var(--ease-out);
}

.page-home .promise-item:hover {
  border-color: rgba(212, 175, 55, 0.8);
  transform: translateY(-4px);
}

.page-home .promise-item__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 40px;
  line-height: 1;
  color: var(--color-gold);
  margin-bottom: 10px;
}

.page-home .promise-item__label {
  display: block;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--color-ivory);
}

.page-home .promise-item__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(245, 240, 232, 0.68);
}

/* ---------- 下载专区特别提示 ---------- */
.page-home .download-panel {
  padding-top: 56px;
  padding-bottom: 20px;
}

.page-home .download-banner {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: center;
  padding: 24px;
  background: var(--color-deep-blue);
  border: 1px solid rgba(10, 31, 68, 0.14);
  border-radius: 6px;
  box-shadow: var(--shadow-panel);
  color: var(--color-ivory);
  overflow: hidden;
}

.page-home .download-banner::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, var(--color-red), var(--color-gold));
}

.page-home .download-banner__media {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  height: 96px;
  border: 1px solid rgba(212, 175, 55, 0.5);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.page-home .download-banner__media img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.page-home .download-banner__zone {
  position: absolute;
  bottom: 4px;
  right: 2px;
  background: var(--color-red);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 7px;
  border-radius: 999px;
}

.page-home .download-banner__content p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(245, 240, 232, 0.88);
}

.page-home .download-banner__content strong {
  color: var(--color-gold-light);
}

.page-home .download-banner__badge {
  position: absolute;
  top: 16px;
  right: 16px;
}

/* ---------- 最新动态 ---------- */
.page-home .updates-panel {
  padding-top: 56px;
  padding-bottom: 20px;
}

.page-home .updates-list {
  display: grid;
  gap: 14px;
}

.page-home .update-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 22px;
  border: 1px solid rgba(10, 31, 68, 0.1);
  background: #ffffff;
  border-radius: 4px;
  box-shadow: var(--shadow-panel);
}

.page-home .update-item__tag {
  justify-self: start;
}

.page-home .update-item__title {
  font-family: var(--font-serif);
  font-size: 17px;
  margin: 0 0 6px;
  color: var(--color-deep-blue);
}

.page-home .update-item__text {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(10, 31, 68, 0.7);
}

.page-home .update-item__more {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold);
  text-decoration: none;
}

/* ---------- 联系客服 ---------- */
.page-home .contact-panel {
  padding-top: 56px;
  padding-bottom: 40px;
}

.page-home .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .contact-card {
  padding: 22px;
  background: var(--color-ivory);
  border: 1px solid rgba(10, 31, 68, 0.12);
  border-radius: 4px;
  box-shadow: var(--shadow-panel);
}

.page-home .contact-card__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold);
}

.page-home .contact-card__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--color-deep-blue);
  margin-bottom: 8px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.page-home .contact-card__note {
  font-size: 13px;
  color: rgba(10, 31, 68, 0.66);
}

.page-home .contact-card--status .contact-card__value {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-home .contact-cta {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px;
  border: 1px dashed rgba(10, 31, 68, 0.22);
  border-radius: 4px;
  background: rgba(245, 240, 232, 0.7);
}

.page-home .contact-cta__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(10, 31, 68, 0.8);
  max-width: 520px;
}

.page-home .contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 右下角常驻客服窗口 ---------- */
.page-home .support-float {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 260px;
  z-index: 70;
  border: 1px solid rgba(212, 175, 55, 0.55);
  border-radius: 10px;
  background: var(--color-deep-blue);
  color: var(--color-ivory);
  box-shadow: 0 14px 40px rgba(10, 31, 68, 0.4);
}

.page-home .support-float summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  cursor: pointer;
  list-style: none;
}

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

.page-home .support-float__avatar {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-gold);
}

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

.page-home .support-float__text strong {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-ivory);
}

.page-home .support-float__text span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gold-light);
}

.page-home .support-float[open] summary {
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
}

.page-home .support-float__body {
  padding: 14px 16px 16px;
  display: grid;
  gap: 10px;
}

.page-home .support-float__body p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(245, 240, 232, 0.8);
}

.page-home .support-float .btn {
  justify-content: center;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-home .home-cover {
    padding-top: 64px;
  }

  .page-home .cat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .page-home .cat-card:nth-child(even) {
    margin-top: 0;
  }

  .page-home .promise-grid {
    gap: 20px;
  }

  .page-home .update-item {
    grid-template-columns: 120px 1fr;
    gap: 20px;
  }

  .page-home .update-item__tag {
    justify-self: start;
  }

  .page-home .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-home .home-cover {
    padding-top: 72px;
  }

  .page-home .home-cover__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: 56px;
    align-items: center;
    padding-bottom: 8px;
  }

  .page-home .home-cover__figure {
    margin-bottom: 0;
  }

  .page-home .cover-index {
    margin-top: 64px;
    padding-left: max(20px, calc((100vw - 1180px) / 2 + 20px));
    padding-right: max(20px, calc((100vw - 1180px) / 2 + 20px));
  }

  .page-home .breadcrumb {
    padding-top: 32px;
  }

  .page-home .panel {
    padding-top: 72px;
  }

  .page-home .section-title {
    font-size: 34px;
  }

  .page-home .cat-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    row-gap: 48px;
    column-gap: 0;
  }

  .page-home .cat-card:nth-child(1) {
    grid-column: 1 / span 5;
    grid-row: 1;
  }

  .page-home .cat-card:nth-child(2) {
    grid-column: 7 / span 5;
    grid-row: 1;
    margin-top: 72px;
  }

  .page-home .cat-card:nth-child(3) {
    grid-column: 2 / span 5;
    grid-row: 2;
  }

  .page-home .cat-card:nth-child(4) {
    grid-column: 8 / span 5;
    grid-row: 2;
    margin-top: -32px;
  }

  .page-home .promise-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .page-home .promise-item {
    padding: 28px 22px;
  }

  .page-home .promise-item__num {
    font-size: 52px;
  }

  .page-home .download-banner {
    grid-template-columns: auto 1fr;
    padding: 32px 40px;
  }

  .page-home .download-banner__content p {
    font-size: 15px;
  }

  .page-home .update-item {
    grid-template-columns: 140px 1fr;
    gap: 24px;
    padding: 26px 28px;
  }

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

  .page-home .contact-card {
    padding: 26px;
  }

  .page-home .support-float {
    width: 300px;
    right: 28px;
    bottom: 28px;
  }
}