/* ==========================================================
   首页 · 皇冠体彩中国区官网 · 双城记视野
   页面专属样式，作用域仅限 .page-home
   ========================================================== */
.page-home {
  --ph-border: 2px solid var(--ink);
  --ph-shadow: 8px 8px 0 var(--royal);
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 锚点定位补偿 ---------- */
.page-home__hero,
.page-home__atmosphere,
.page-home__section {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

/* ---------- 首屏：章节预览 ---------- */
.page-home__hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 8vw, 6rem) 0 0;
}

.page-home__hero::before {
  content: "";
  position: absolute;
  top: -8rem;
  right: -10rem;
  width: 26rem;
  height: 26rem;
  border: 2px solid rgba(0, 51, 102, 0.14);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-home__hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gray-200);
}

.page-home__hero-grid {
  position: relative;
  display: grid;
  gap: clamp(2.5rem, 6vw, 4rem);
  padding-bottom: clamp(3rem, 8vw, 5.5rem);
}

.page-home__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--royal);
}

.page-home__kicker::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  background: var(--gold);
  display: inline-block;
}

.page-home__title {
  margin: 0 0 1.5rem;
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-home__title-sep {
  color: var(--royal);
  margin: 0 0.15em;
}

.page-home__lead {
  margin-bottom: 2rem;
  max-width: 52ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--gray-800);
}

.page-home__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-home__btn-ghost {
  background: transparent;
  border: 2px solid var(--ink);
  color: var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-home__btn-ghost:hover {
  background: var(--white);
  color: var(--ink);
}

/* ---------- 章节预览卡片 ---------- */
.page-home__preview {
  align-self: stretch;
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: var(--ph-border);
  box-shadow: var(--ph-shadow);
  padding: clamp(1.5rem, 4vw, 2.25rem);
}

.page-home__preview::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0.375rem;
  background: linear-gradient(90deg, var(--royal) 0 55%, var(--gold) 55% 78%, var(--crimson) 78% 100%);
}

.page-home__preview-label {
  margin: 0 0 1.125rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--royal);
  font-weight: 700;
}

.page-home__preview-nav {
  flex: 1;
}

.page-home__preview-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--gray-200);
}

.page-home__preview-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--gray-200);
}

.page-home__preview-num {
  flex: 0 0 auto;
  width: 2.75rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--white);
  background: var(--royal);
  padding: 0.25rem 0;
  margin: 0.75rem 0;
}

.page-home__preview-item a {
  flex: 1;
  padding: 0.9rem 0;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.0625rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-home__preview-item a:hover {
  color: var(--royal);
  padding-left: 0.25rem;
}

.page-home__preview-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 2px solid var(--gold);
}

.page-home__preview-links a {
  color: var(--royal);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--royal);
  padding-bottom: 0.125rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-home__preview-links a:hover {
  color: var(--ink);
  border-color: var(--gold);
}

/* ---------- 品牌氛围图 ---------- */
.page-home__atmosphere {
  background: var(--white);
  padding: clamp(2rem, 6vw, 4.5rem) 0;
}

.page-home__figure {
  margin: 0;
}

.page-home__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--ph-border);
  background: var(--gray-200);
}

.page-home__figure figcaption {
  margin-top: 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--gray-800);
}

.page-home__figure--wide img {
  box-shadow: 10px 10px 0 var(--royal);
}

/* ---------- 通用章节 ---------- */
.page-home__section {
  padding: clamp(4rem, 10vw, 7rem) 0;
}

.page-home__section-header {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 1.25rem;
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem);
}

.page-home__section-index {
  font-family: var(--font-mono);
  font-size: clamp(3.5rem, 8vw, 5.75rem);
  font-weight: 700;
  line-height: 0.9;
  color: var(--royal);
  letter-spacing: -0.03em;
}

.page-home__section-heading {
  padding-top: 0.375rem;
}

.page-home__section-kicker {
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-800);
}

.page-home__section-title {
  margin: 0;
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}

/* ---------- 01 服务清单 ---------- */
.page-home__service-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
}

.page-home__service-copy {
  align-self: center;
}

.page-home__service-lead {
  margin: 0 0 1.75rem;
  padding-left: 1.25rem;
  border-left: 4px solid var(--royal);
  font-size: 1.1875rem;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
}

.page-home__checklist {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
}

.page-home__checklist li {
  position: relative;
  padding: 0.85rem 0 0.85rem 1.875rem;
  border-bottom: 1px solid var(--gray-200);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
}

.page-home__checklist li:last-child {
  border-bottom: 2px solid var(--gold);
}

.page-home__checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.25rem;
  width: 0.75rem;
  height: 0.75rem;
  background: var(--gold);
  border: 2px solid var(--ink);
}

.page-home__service-figure img {
  box-shadow: var(--ph-shadow);
}

/* ---------- 02 开奖公告与走势（暗色） ---------- */
.page-home__section--dark {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.page-home__section--dark .container {
  position: relative;
  z-index: 1;
}

.page-home__bg-line {
  position: absolute;
  top: 0;
  right: 0;
  width: 70%;
  height: 100%;
  opacity: 0.4;
  pointer-events: none;
}

.page-home__section--dark .page-home__section-index {
  color: var(--gold);
}

.page-home__section--dark .page-home__section-kicker {
  color: rgba(255, 255, 255, 0.55);
}

.page-home__section--dark .page-home__section-title {
  color: var(--white);
}

.page-home__lottery-grid {
  position: relative;
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
  align-items: center;
}

.page-home__tablist {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.2);
  margin: 0 0 1.5rem;
}

.page-home__tab {
  appearance: none;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-home__tab:hover {
  color: var(--white);
}

.page-home__tab:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-home__tab[aria-selected="true"] {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-home__tabpanel {
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.75;
}

.page-home__tabpanel[hidden] {
  display: none;
}

.page-home__tabpanel p {
  margin: 0 0 1.25rem;
  font-size: 1.0625rem;
}

.page-home__tab-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}

.page-home__tab-list li {
  position: relative;
  padding: 0.4rem 0 0.4rem 1.375rem;
  font-size: 0.9375rem;
}

.page-home__tab-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--gold);
  font-family: var(--font-mono);
}

.page-home__panel-link {
  display: inline-block;
  color: var(--gold);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 0.125rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-home__panel-link:hover {
  color: var(--white);
  border-color: var(--white);
}

.page-home__lottery-figure img {
  border-color: var(--gray-800);
  box-shadow: 10px 10px 0 rgba(255, 255, 255, 0.08);
}

.page-home__section--dark .page-home__figure figcaption {
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- 数据摘要条 ---------- */
.page-home__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.page-home__stat {
  border-left: 3px solid var(--gold);
  padding-left: 1rem;
}

.page-home__stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
}

.page-home__stat-label {
  margin-top: 0.25rem;
  display: block;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.65);
}

/* ---------- 03 移动端 ---------- */
.page-home__section--mobile {
  background: var(--white);
}

.page-home__mobile-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
  align-items: center;
}

.page-home__steps-list {
  list-style: none;
  margin: 0 0 2.25rem;
  padding: 0;
}

.page-home__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 2px solid var(--gray-200);
}

.page-home__step:first-child {
  border-top: 2px solid var(--ink);
}

.page-home__step-num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--royal);
}

.page-home__step-body h3 {
  margin: 0 0 0.375rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
}

.page-home__step-body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--gray-800);
}

.page-home__mobile-figure img {
  box-shadow: var(--ph-shadow);
}

/* ---------- 04 联系入口与支持 ---------- */
.page-home__section--contact {
  background: var(--paper);
}

.page-home__contact-grid {
  display: grid;
  gap: 1.5rem;
}

.page-home__contact-card {
  position: relative;
  overflow: hidden;
  background: var(--white);
  border: var(--ph-border);
  box-shadow: 6px 6px 0 var(--royal);
  padding: 1.75rem 1.5rem 1.5rem;
}

.page-home__contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0.375rem;
  background: linear-gradient(90deg, var(--royal) 0 58%, var(--gold) 58% 100%);
}

.page-home__contact-title {
  margin: 0 0 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--royal);
}

.page-home__contact-value {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ink);
  word-break: break-all;
}

.page-home__contact-value--small {
  font-size: 1rem;
  line-height: 1.6;
  word-break: normal;
}

.page-home__contact-note {
  margin: 0;
  font-size: 0.84375rem;
  line-height: 1.6;
  color: var(--gray-800);
}

.page-home__support-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
}

.page-home__btn-outline {
  background: transparent;
  border: 2px solid var(--royal);
  color: var(--royal);
  box-shadow: 4px 4px 0 var(--royal);
}

.page-home__btn-outline:hover {
  background: var(--royal);
  color: var(--white);
}

.page-home__icp {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--gray-800);
}

/* ---------- 桌面端增强 ---------- */
@media (min-width: 640px) {
  .page-home__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-home__icp {
    width: auto;
    margin-left: auto;
  }
}

@media (min-width: 768px) {
  .page-home__contact-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-home__hero-grid {
    grid-template-columns: 5fr 6fr;
    align-items: center;
  }

  .page-home__service-grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }

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

  .page-home__mobile-grid {
    grid-template-columns: 6fr 6fr;
  }
}

/* ---------- 动效与可达性 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition: none !important;
    animation: none !important;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-home__hero-copy,
  .page-home__preview,
  .page-home__figure--wide img,
  .page-home__service-lead,
  .page-home__contact-card {
    animation: page-home-rise 0.5s ease-out both;
  }

  .page-home__preview {
    animation-delay: 0.08s;
  }

  @keyframes page-home-rise {
    from {
      opacity: 0;
      transform: translateY(14px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}