.page-home {
  --home-cover-deep: #0B1B3A;
  --home-cover-indigo: #3C2A5D;
  --home-cover-teal: #0E4C5C;
  --home-line: rgba(192, 192, 192, 0.32);
  --home-silver-line: rgba(192, 192, 192, 0.22);
  --home-space-lg: clamp(48px, 7vw, 88px);
  background: var(--ky-bg);
}

/* ========== 封面：杂志式首屏 ========== */
.page-home__cover {
  position: relative;
  background: linear-gradient(135deg, var(--home-cover-deep) 0%, var(--home-cover-indigo) 52%, var(--home-cover-teal) 100%);
  color: var(--ky-inverse);
  padding: 28px var(--ky-space) 48px;
  overflow: hidden;
}

.page-home__crumb {
  position: relative;
  z-index: 2;
  color: rgba(245, 247, 250, 0.7);
  margin-bottom: 20px;
}

.page-home__cover-grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 28px;
}

.page-home__cover-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-home__cover-title {
  font-family: var(--ky-font-head);
  font-size: var(--ky-h1);
  line-height: 1.22;
  margin: 16px 0 18px;
  padding-left: 14px;
  position: relative;
  text-wrap: balance;
}

.page-home__cover-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 8px;
  width: 6px;
  background: var(--ky-orange);
  transform: skew(-8deg);
}

.page-home__cover-lede {
  max-width: 56ch;
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.86);
}

.page-home__cover-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home__cover .ky-btn--ghost {
  background: transparent;
  color: var(--ky-inverse);
  border-color: rgba(255, 255, 255, 0.55);
}

.page-home__cover-visual {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  padding: 10px;
}

.page-home__cover-visual::after {
  content: '';
  position: absolute;
  inset: 10px;
  background: linear-gradient(200deg, rgba(11, 27, 58, 0) 55%, rgba(11, 27, 58, 0.4) 100%);
  pointer-events: none;
}

.page-home__cover-img {
  display: block;
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.page-home__stream {
  position: absolute;
  inset: 10px;
  overflow: hidden;
  pointer-events: none;
  z-index: 2;
  mix-blend-mode: screen;
  opacity: 0.65;
}

.page-home__stream span {
  position: absolute;
  top: -20%;
  width: 2px;
  height: 38%;
  background: linear-gradient(to bottom, transparent, var(--ky-green) 55%, transparent);
  animation: pagehome-stream 5s linear infinite;
}

.page-home__stream span:nth-child(1) { left: 12%; }
.page-home__stream span:nth-child(2) { left: 38%; animation-delay: 1.4s; }
.page-home__stream span:nth-child(3) { left: 62%; animation-delay: 2.8s; }
.page-home__stream span:nth-child(4) { left: 86%; animation-delay: 0.9s; }

@keyframes pagehome-stream {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(0, 380%, 0); }
}

.page-home__cover-index {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--home-silver-line);
}

.page-home__cover-index-label {
  font-family: var(--ky-font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(245, 247, 250, 0.7);
  margin-right: 6px;
}

.page-home__cover-index a {
  font-family: var(--ky-font-mono);
  font-size: 14px;
  color: rgba(245, 247, 250, 0.85);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, 0.55);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-home__cover-index a:hover {
  color: var(--ky-orange);
  border-color: var(--ky-orange);
}

.page-home__cover-deco {
  position: absolute;
  left: var(--ky-space);
  right: var(--ky-space);
  bottom: 10px;
  height: 18px;
  opacity: 0.35;
  z-index: 1;
  pointer-events: none;
}

/* ========== 通用章节头部 ========== */
.page-home__section-head {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: start;
}

.page-home__section-head .ky-section__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-family: var(--ky-font-mono);
  font-size: 16px;
  font-weight: 700;
  background: var(--ky-navy);
  color: var(--ky-orange);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.page-home__section-head .ky-section__title {
  font-family: var(--ky-font-head);
  font-size: var(--ky-h2);
  line-height: 1.3;
  margin: 0;
}

.page-home__section-lede {
  margin: 10px 0 0;
  max-width: 640px;
  color: rgba(26, 26, 46, 0.68);
  font-size: 15px;
  line-height: 1.6;
}

.page-home__section-head--light .ky-section__title {
  color: var(--ky-inverse);
}

.page-home__section-head--light .page-home__section-lede {
  color: rgba(245, 247, 250, 0.74);
}

/* ========== 01 版本升级 ========== */
.page-home__upgrade {
  padding: var(--home-space-lg) 0;
  background: var(--ky-bg);
}

.page-home__upgrade-list {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.page-home__upgrade-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--home-line);
  border-left: 4px solid var(--ky-orange);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.page-home__upgrade-code {
  flex: 0 0 28px;
  height: 28px;
  font-family: var(--ky-font-mono);
  font-weight: 700;
  font-size: 18px;
  line-height: 28px;
  color: var(--ky-orange);
}

.page-home__upgrade-item h3 {
  margin: 0 0 6px;
  font-family: var(--ky-font-head);
  font-size: 18px;
  line-height: 1.4;
  color: var(--ky-text);
}

.page-home__upgrade-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(26, 26, 46, 0.68);
}

/* ========== 02 核心功能 ========== */
.page-home__features {
  padding: var(--home-space-lg) 0;
  background: linear-gradient(180deg, var(--home-cover-indigo) 0%, var(--home-cover-deep) 100%);
  color: var(--ky-inverse);
}

.page-home__features .page-home__section-head .ky-section__num {
  background: rgba(255, 255, 255, 0.92);
  color: var(--ky-navy);
}

.page-home__features .ky-kicker {
  color: var(--ky-orange);
}

.page-home__feature-grid {
  margin-top: 32px;
}

.page-home__feature-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-top: 3px solid var(--ky-orange);
  color: var(--ky-inverse);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.page-home__feature-card .ky-card__title {
  font-family: var(--ky-font-head);
  font-size: 20px;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--ky-inverse);
}

.page-home__feature-card .ky-card__text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(245, 247, 250, 0.78);
}

.page-home__feature-card .ky-btn--ghost {
  margin-top: auto;
  background: transparent;
  color: var(--ky-inverse);
  border-color: rgba(255, 255, 255, 0.5);
}

.page-home__features-media {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-home__media-fig {
  margin: 0;
  padding: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.page-home__media-fig img {
  display: block;
  width: 100%;
  height: auto;
}

.page-home__media-fig figcaption {
  padding-top: 10px;
  font-family: var(--ky-font-mono);
  font-size: 13px;
  color: rgba(245, 247, 250, 0.76);
  letter-spacing: 0.04em;
}

/* ========== 03 数据表现 ========== */
.page-home__data {
  padding: var(--home-space-lg) 0;
  background: linear-gradient(120deg, var(--home-cover-deep) 0%, var(--home-cover-indigo) 100%);
  color: var(--ky-inverse);
}

.page-home__data .page-home__section-head .ky-section__num {
  background: rgba(255, 255, 255, 0.92);
  color: var(--ky-navy);
}

.page-home__data .ky-kicker {
  color: var(--ky-orange);
}

.page-home__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 32px;
}

.page-home__stat {
  padding: 22px 14px 20px;
  text-align: center;
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.page-home__stat-num {
  display: block;
  font-family: var(--ky-font-mono);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--ky-orange);
  letter-spacing: -0.02em;
}

.page-home__stat-unit {
  font-size: clamp(16px, 2vw, 22px);
  margin-left: 4px;
  color: var(--ky-inverse);
}

.page-home__stat-label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: rgba(245, 247, 250, 0.78);
}

.page-home__data-note {
  display: grid;
  gap: 18px;
  margin-top: 28px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(192, 192, 192, 0.14);
  align-items: center;
}

.page-home__data-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.85);
}

.page-home__data-note img {
  width: 100%;
  height: auto;
  border: 1px solid rgba(192, 192, 192, 0.1);
}

/* ========== 04 使用场景 ========== */
.page-home__scenes {
  padding: var(--home-space-lg) 0;
  background: var(--ky-bg);
}

.page-home__scene-grid {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.page-home__scene {
  position: relative;
  padding: 26px 24px 28px;
  background: #fff;
  border: 1px solid var(--home-line);
  border-top: 5px solid var(--ky-orange);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-home__scene--alt {
  border-top-color: var(--ky-teal);
}

.page-home__scene-code {
  display: inline-block;
  font-family: var(--ky-font-mono);
  font-size: 14px;
  color: var(--ky-orange);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.page-home__scene--alt .page-home__scene-code {
  color: var(--ky-teal);
}

.page-home__scene h3 {
  margin: 0 0 12px;
  font-family: var(--ky-font-head);
  font-size: 22px;
  line-height: 1.35;
  color: var(--ky-text);
}

.page-home__scene p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(26, 26, 46, 0.72);
}

.page-home__scene ul {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-home__scene li {
  font-size: 14px;
  line-height: 1.5;
  color: rgba(26, 26, 46, 0.72);
  padding-left: 20px;
  position: relative;
}

.page-home__scene li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--ky-orange);
  font-family: var(--ky-font-mono);
  font-weight: 700;
}

.page-home__scene--alt li::before {
  color: var(--ky-teal);
}

/* ========== 05 持续动态 ========== */
.page-home__news {
  padding: var(--home-space-lg) 0;
  background: var(--ky-bg);
  border-top: 1px solid var(--home-line);
}

.page-home__news-list {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.page-home__news-item {
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--ky-wine);
  transition: transform 0.2s ease;
}

.page-home__news-item:hover {
  transform: translateX(4px);
}

.page-home__news-tag {
  display: inline-block;
  font-family: var(--ky-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ky-wine);
  border: 1px solid rgba(123, 45, 59, 0.3);
  padding: 2px 8px;
  margin-bottom: 10px;
}

.page-home__news-item h3 {
  margin: 0 0 8px;
  font-family: var(--ky-font-head);
  font-size: 17px;
  line-height: 1.4;
  color: var(--ky-text);
}

.page-home__news-item p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(26, 26, 46, 0.68);
}

.page-home__news-item a {
  font-family: var(--ky-font-mono);
  font-size: 13px;
  color: var(--ky-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, 0.4);
  padding-bottom: 1px;
}

.page-home__news-item a::after {
  content: ' →';
}

.page-home__news-more {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 28px;
}

/* ========== 响应式断点 ========== */
@media (min-width: 720px) {
  .page-home__cover-img {
    height: 520px;
  }

  .page-home__section-head {
    grid-template-columns: 64px 1fr;
    gap: 24px;
  }

  .page-home__section-head .ky-section__num {
    width: 56px;
    height: 56px;
    font-size: 18px;
  }

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

  .page-home__features-media {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
  }

  .page-home__data-note {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

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

@media (min-width: 900px) {
  .page-home__stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }

  .page-home__scene-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-home__cover-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
  }

  .page-home__cover-index {
    margin-top: 40px;
  }
}

@media (min-width: 1024px) {
  .page-home__cover {
    margin-left: calc(var(--ky-rail-w) * -1);
    padding-left: var(--ky-rail-w);
    padding-bottom: 56px;
  }

  .page-home__cover-img {
    height: 680px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home__stream span {
    animation: none;
    opacity: 0.3;
  }

  .page-home__news-item {
    transition: none;
  }
}