/* ==================================================
   首页专属样式 · 竞博官方品牌站
   作用域：.page-home
   ================================================== */
.page-home {
  --home-rail-space: 44px;
  position: relative;
  overflow-x: hidden;
  color: var(--color-cream);
  font-family: var(--font-body);
  line-height: 1.7;
  background:
    radial-gradient(ellipse at 85% 12%, rgba(74, 158, 255, 0.10) 0%, transparent 48%),
    radial-gradient(ellipse at 15% 92%, rgba(255, 140, 66, 0.08) 0%, transparent 36%),
    var(--color-deep-space);
}

.page-home__crumb {
  position: relative;
  z-index: 2;
  padding: 20px 24px 0;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--color-ash);
}

.page-home .separator-icon {
  color: var(--color-ash);
}

/* 章节编号与标题 */
.page-home .section-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  max-width: var(--container-w);
}
.page-home .section-head + .container-wide,
.page-home .section-head + * {
  max-width: var(--container-w);
  margin-left: auto;
  margin-right: auto;
}
.page-home .section-number {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1;
  color: var(--color-vital);
  letter-spacing: -0.03em;
}
.page-home .section-title {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--color-cream);
  padding-left: 16px;
  border-left: 3px solid var(--color-vital);
  margin: 0;
  transition: text-shadow 0.3s ease;
}
.page-home .section-title:hover {
  text-shadow: 0 0 24px rgba(255, 140, 66, 0.40);
}

/* 路径箭头 */
.path-arrow {
  display: inline-block;
  transition: transform 0.25s ease;
  font-style: normal;
  line-height: 1;
}

/* ---------- 按钮 ---------- */
.page-home .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}
.page-home .btn-primary {
  background: var(--color-vital);
  color: var(--color-deep-space);
  border-color: var(--color-vital);
  box-shadow: 0 4px 18px rgba(255, 140, 66, 0.28);
}
.page-home .btn-primary:hover {
  background: rgba(255, 140, 66, 0.85);
  border-color: rgba(255, 140, 66, 0.85);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 140, 66, 0.36);
}
.page-home .btn-ghost {
  background: transparent;
  border-color: rgba(167, 183, 200, 0.42);
  color: var(--color-ash);
}
.page-home .btn-ghost:hover {
  border-color: var(--color-vital);
  color: var(--color-cream);
}
.page-home .btn-outline {
  background: rgba(16, 35, 58, 0.55);
  border-color: rgba(74, 158, 255, 0.45);
  color: var(--color-data);
}
.page-home .btn-outline:hover {
  border-color: var(--color-data);
  color: var(--color-cream);
}

/* ---------- 第01幕：路径起点 ---------- */
.path-start {
  position: relative;
  padding: 56px 24px 0;
  background:
    linear-gradient(167deg, rgba(255, 140, 66, 0.12) 0%, transparent 22%),
    linear-gradient(142deg, var(--color-deep-space) 0%, var(--color-surface) 62%, var(--color-faint) 100%);
}

.path-start__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  max-width: var(--container-w);
  margin: 0 auto;
  align-items: center;
}

.path-start__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ash);
  border: 1px solid rgba(167, 183, 200, 0.35);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.path-start__eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-vital);
  transform: rotate(45deg);
  border-radius: 2px;
}

.path-start__title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 7vw, 4.25rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--color-cream);
  margin: 0 0 18px;
}
.path-start__title em {
  position: relative;
  display: inline-block;
  font-style: italic;
  color: var(--color-vital);
  padding: 0 0.10em;
  background: linear-gradient(90deg, rgba(255, 140, 66, 0.22) 0%, rgba(255, 140, 66, 0) 100%);
}

.path-start__lead {
  font-size: 1rem;
  max-width: 30em;
  color: var(--color-ash);
  margin: 0 0 32px;
}

.path-start__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.path-start__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  border-top: 1px solid rgba(167, 183, 200, 0.20);
  padding-top: 20px;
  margin: 0;
}
.path-start__stat {
  display: flex;
  flex-direction: column;
}
.path-start__stat-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-vital);
  margin: 0;
}
.path-start__stat-label {
  font-size: 0.78rem;
  color: var(--color-ash);
  letter-spacing: 0.06em;
}

.path-start__visual {
  position: relative;
  transform: skewX(-1.2deg);
}
.path-start__svg {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: visible;
}
.path-start__vein {
  width: 100%;
  height: 100%;
  opacity: 0.85;
}
.path-start__image {
  position: relative;
  box-shadow:
    18px 20px 0 rgba(255, 140, 66, 0.14),
    -10px -8px 0 rgba(74, 158, 255, 0.10);
}
.path-start__image::after {
  content: "";
  position: absolute;
  inset: 10px;
  z-index: 1;
  border: 1px solid rgba(242, 239, 232, 0.26);
  pointer-events: none;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
}
.path-start__image img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 960 / 720;
  clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 34px 100%, 0 calc(100% - 34px));
}

.path-start__divider {
  position: relative;
  height: 26px;
  margin-top: 56px;
  background:
    repeating-linear-gradient(
      -55deg,
      rgba(255, 140, 66, 0.22) 0 14px,
      transparent 14px 24px,
      rgba(74, 158, 255, 0.18) 24px 38px,
      transparent 38px 48px
    );
}

/* ---------- 第02幕：最短路径直达 ---------- */
.quick-paths {
  position: relative;
  padding: 72px 24px 24px;
  background: linear-gradient(180deg, var(--color-deep-space) 0%, rgba(28, 48, 69, 0.94) 100%);
}
.quick-paths::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 72%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 140, 66, 0.45), transparent);
  transform: translateX(-50%);
}

.quick-paths .section-head {
  padding: 0 24px;
}

.quick-path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.quick-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border-left: 4px solid var(--color-deep-space);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.22);
  overflow: hidden;
  transition:
    border-color 0.28s ease,
    transform 0.25s ease,
    box-shadow 0.28s ease;
}
.quick-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 26px;
  height: 26px;
  background: var(--color-deep-space);
  clip-path: polygon(0 0, 100% 100%, 100% 0);
  z-index: 5;
}
.quick-card:hover {
  border-left-color: var(--color-vital);
  transform: translateY(-4px);
  box-shadow: 0 8px 26px rgba(255, 140, 66, 0.16);
}

.quick-card__media {
  position: relative;
  overflow: hidden;
}
.quick-card__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 480 / 320;
  transition: transform 0.35s ease;
}
.quick-card:hover .quick-card__media img {
  transform: scale(1.04);
}

.quick-card__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  padding: 20px 18px 24px;
}

.page-home .tag {
  align-self: flex-start;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.08em;
  font-family: var(--font-body);
}

.quick-card__title {
  font-family: var(--font-heading);
  font-size: 1.06rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--color-cream);
  margin: 0;
}
.quick-card__text {
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--color-ash);
  margin: 0;
}
.quick-card__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-vital);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.2s ease;
}
.quick-card__link:hover {
  border-bottom-color: rgba(255, 140, 66, 0.45);
}
.quick-card__link:hover .path-arrow {
  transform: translateX(5px);
}

/* 纯 CSS 视觉卡 */
.quick-card--css .quick-card__mono {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 132px;
  background:
    linear-gradient(135deg, rgba(74, 158, 255, 0.10) 0%, transparent 60%),
    repeating-linear-gradient(115deg, transparent 0 12px, rgba(242, 239, 232, 0.04) 12px 13px, transparent 13px 24px);
  color: var(--color-moss);
}
.quick-card__mono::before {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  top: 50%;
  height: 2px;
  transform: skewX(-18deg);
  background: linear-gradient(90deg, var(--color-data), var(--color-vital), transparent);
  opacity: 0.7;
}
.quick-card__mono::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 62%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-vital);
  box-shadow: 0 0 0 5px rgba(255, 140, 66, 0.16);
  transform: translate(-50%, -50%);
}
.quick-card__mono-mark {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: rgba(242, 239, 232, 0.82);
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}
.quick-card__mono--v3 .quick-card__mono-mark {
  color: var(--color-data);
}

/* ---------- 第03幕：最新版本与动态 ---------- */
.version-update {
  position: relative;
  padding: 80px 24px 48px;
  background:
    linear-gradient(180deg, rgba(74, 158, 255, 0.05) 0%, transparent 36%),
    repeating-linear-gradient(90deg, rgba(242, 239, 232, 0.02) 0 1px, transparent 1px 120px);
}

.version-update__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: var(--container-w);
  margin: 0 auto 28px;
}

.version-card {
  position: relative;
  padding: 28px 26px;
  background: linear-gradient(150deg, var(--color-surface) 0%, rgba(16, 35, 58, 0.78) 100%);
  border: 1px solid rgba(167, 183, 200, 0.16);
  border-radius: 2px;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}
.version-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--color-vital);
}
.version-card:nth-child(2)::before {
  background: var(--color-data);
}

.version-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.version-card__mark {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(242, 239, 232, 0.10);
  letter-spacing: -0.02em;
}
.version-card__title {
  font-family: var(--font-heading);
  font-size: 1.38rem;
  font-weight: 800;
  color: var(--color-cream);
  margin: 0 0 8px;
}
.version-card__lead {
  color: var(--color-ash);
  font-size: 0.88rem;
  margin: 0 0 16px;
}
.version-card__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.version-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.85rem;
  color: var(--color-ash);
  line-height: 1.6;
}
.version-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 10px;
  height: 4px;
  border-radius: 1px;
  background: var(--color-moss);
}
.version-card__list li:nth-child(2)::before {
  background: var(--color-data);
}
.version-card__list li:nth-child(3)::before {
  background: var(--color-vital);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-vital);
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 140, 66, 0.35);
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.text-link:hover {
  border-bottom-color: var(--color-vital);
  color: var(--color-cream);
}
.text-link:hover .path-arrow {
  transform: translateX(5px);
}

.version-update__footer {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}
.version-update__footer .btn:hover .path-arrow {
  transform: translateX(5px);
}

/* ---------- 第04幕：V3栏目分类索引 ---------- */
.category-index {
  padding: 80px 24px 40px;
}

.category-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.category-index__visual {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  box-shadow:
    12px 14px 0 rgba(74, 158, 255, 0.08),
    -8px -6px 0 rgba(255, 140, 66, 0.07);
}
.category-index__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 800 / 400;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.category-index__list {
  display: grid;
  gap: 14px;
}

.category-item {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  background: rgba(16, 35, 58, 0.55);
  border: 1px solid rgba(167, 183, 200, 0.14);
  text-decoration: none;
  position: relative;
  transition: background 0.24s ease, border-color 0.24s ease, transform 0.2s ease;
}
.category-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-vital);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.category-item:hover {
  background: var(--color-surface);
  border-color: rgba(255, 140, 66, 0.30);
  transform: translateX(4px);
}
.category-item:hover::after {
  opacity: 1;
}
.category-item__num {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--color-ash);
  opacity: 0.7;
}
.category-item__name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-cream);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.category-item__arrow {
  display: inline-block;
  color: var(--color-vital);
  transition: transform 0.22s ease;
}
.category-item:hover .category-item__arrow {
  transform: translateX(5px);
}
.category-item__desc {
  grid-column: 1 / -1;
  padding-left: 52px;
  font-size: 0.8rem;
  color: var(--color-ash);
  margin-top: -4px;
}

/* ---------- 第05幕：固定访问核对 ---------- */
.verify-block {
  padding: 72px 24px 88px;
}
.verify-block .section-head {
  max-width: var(--container-w);
}

.verify-card {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  padding: 32px 28px;
  background:
    linear-gradient(135deg, rgba(16, 35, 58, 0.90) 0%, rgba(16, 35, 58, 0.55) 100%),
    repeating-linear-gradient(115deg, transparent 0 14px, rgba(255, 140, 66, 0.03) 14px 15px);
  border: 1px solid rgba(167, 183, 200, 0.22);
  clip-path: polygon(0 0, calc(100% - 42px) 0, 100% 42px, 100% 100%, 42px 100%, 0 calc(100% - 42px));
  filter: drop-shadow(0 14px 26px rgba(0, 0, 0, 0.36));
}
.verify-card__lead {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-cream);
  margin: 0 0 20px;
}
.verify-card__info {
  margin: 0 0 24px;
  padding: 0;
}
.verify-card__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 16px;
  border-bottom: 1px solid rgba(167, 183, 200, 0.16);
  padding: 12px 0;
}
.verify-card__row dt {
  min-width: 138px;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ash);
}
.verify-card__row dd {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.96rem;
  color: var(--color-cream);
}
.verify-card .btn {
  width: 100%;
}

/* ---------- 桌面端增强 ---------- */
@media (min-width: 640px) {
  .path-start {
    padding: 64px 32px 0;
  }

  .quick-path-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .version-card {
    padding: 32px 30px 36px;
  }

  .category-item__desc {
    grid-column: 2 / -1;
  }

  .verify-card {
    padding: 44px 48px;
  }
}

@media (min-width: 900px) {
  .path-start {
    padding: 72px 32px 0;
  }
  .path-start__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    min-height: calc(100vh - var(--header-h) - 90px);
    min-height: calc(100svh - var(--header-h) - 90px);
    padding: 24px 0 56px;
  }
  .path-start__title {
    margin-bottom: 24px;
  }
  .path-start__actions {
    margin-bottom: 40px;
  }

  .quick-paths {
    padding: 90px 32px 32px;
  }
  .quick-path-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
  }

  .version-update {
    padding: 96px 32px 56px;
  }
  .version-update__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .category-index {
    padding: 96px 32px 56px;
  }
  .category-index__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
  }

  .verify-block {
    padding: 96px 32px 108px;
  }
  .verify-card .btn {
    width: auto;
  }
}

@media (min-width: 1200px) {
  .path-start__grid {
    gap: 68px;
  }
  .quick-path-grid {
    gap: 32px;
  }
  .version-update__grid {
    gap: 40px;
  }
}