/* =============================================
   page-home 首页专属样式
   作用域限定 .page-home
   移动端优先 + 桌面栅格增强
   ============================================= */

/* ---- 设计令牌（作用域内） ---- */
.page-home {
  --home-gold-soft: rgba(212, 175, 55, 0.12);
  --home-neon-glow: 0 0 30px rgba(57, 255, 20, 0.2);
  --home-card-shadow: 0 12px 48px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--color-border-gold);
  --home-diagonal-angle: 8deg;
  --home-capsule-radius: 60px;
  color: var(--color-light);
  background: var(--color-primary);
}

/* ---- 首屏：对角线分割 ---- */
.page-home .hero-diagonal {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 92vh;
  overflow: hidden;
  isolation: isolate;
  background: var(--color-primary);
}

.page-home .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
  z-index: 0;
  pointer-events: none;
  filter: saturate(0.7) contrast(1.1);
}

.page-home .hero-left {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 3rem 1.5rem 2rem;
  background: linear-gradient(180deg, rgba(10,31,60,0.96) 40%, rgba(10,31,60,0.88) 100%);
}

.page-home .hero-right {
  position: relative;
  z-index: 2;
  padding: 0 1rem 3rem;
  background: rgba(17,17,17,0.7);
  backdrop-filter: blur(4px);
  border-top: 2px solid var(--color-border-gold);
}

/* 对角线装饰条（桌面显示） */
.page-home .diagonal-divider {
  display: none;
}

/* 会员徽章 */
.page-home .member-emblem {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.page-home .emblem-icon {
  width: 80px;
  height: 80px;
  display: block;
  border-radius: 50%;
  object-fit: contain;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 12px rgba(212,175,55,0.5));
}

.page-home .emblem-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(212,175,55,0.4);
  animation: pulse-ring 2.4s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.12); opacity: 0.2; }
}

.page-home .pulse-gold {
  animation: pulse-glow 2.4s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(212,175,55,0.4)); }
  50% { filter: drop-shadow(0 0 24px rgba(212,175,55,0.8)); }
}

/* 标题区 */
.page-home .hero-overline {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  opacity: 0.7;
  margin-bottom: 0.5rem;
}

.page-home .hero-headline {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 12vw, 5rem);
  line-height: 1.05;
  color: var(--color-light);
  margin: 0 0 0.8rem;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.page-home .headline-accent {
  color: var(--color-gold-bright);
  display: block;
  font-size: 1.2em;
  background: linear-gradient(135deg, #D4AF37, #FFD700, #D4AF37);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-home .hero-desc {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-light);
  opacity: 0.85;
  max-width: 420px;
  margin: 0 auto 1.8rem;
}

/* 金色CTA按钮 */
.page-home .btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2.4rem;
  font-family: var(--font-head);
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--color-dark);
  background: linear-gradient(135deg, #D4AF37, #FFD700);
  border: none;
  border-radius: var(--home-capsule-radius);
  cursor: pointer;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
  box-shadow: 0 4px 20px rgba(212,175,55,0.3);
  text-decoration: none;
  font-weight: 900;
}

.page-home .btn-gold:hover,
.page-home .btn-gold:focus-visible {
  transform: scale(1.04);
  box-shadow: 0 8px 32px rgba(212,175,55,0.5);
}

/* ---- 轮播 ---- */
.page-home .carousel {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--home-card-shadow);
  background: var(--color-dark);
}

.page-home .carousel-track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-home .carousel-track::-webkit-scrollbar {
  display: none;
}

.page-home .carousel-slide {
  flex: 0 0 100%;
  scroll-snap-align: start;
  position: relative;
}

.page-home .carousel-img {
  width: 100%;
  height: auto;
  max-height: 460px;
  object-fit: cover;
  display: block;
}

.page-home .carousel-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.2rem;
  background: linear-gradient(transparent, rgba(10,31,60,0.85));
  color: var(--color-gold-bright);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  backdrop-filter: blur(2px);
}

.page-home .carousel-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 0.5rem;
  pointer-events: none;
  z-index: 2;
}

.page-home .carousel-btn {
  pointer-events: auto;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border-gold);
  background: rgba(10,31,60,0.7);
  backdrop-filter: blur(6px);
  color: var(--color-gold);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition-smooth), transform var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-home .carousel-btn:hover,
.page-home .carousel-btn:focus-visible {
  background: rgba(212,175,55,0.2);
  transform: scale(1.1);
}

.page-home .carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.8rem 0 0.4rem;
}

.page-home .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--color-border-gold);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition-smooth), transform var(--transition-smooth);
  padding: 0;
}

.page-home .dot.is-active {
  background: var(--color-gold);
  border-color: var(--color-gold);
  transform: scale(1.25);
}

.page-home .dot:hover {
  background: var(--color-gold-dim);
}

/* ---- 核心服务区 ---- */
.page-home .services-core {
  padding: 4rem 1.5rem 3rem;
  background: var(--color-dark);
  position: relative;
}

.page-home .section-meta {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border-gold);
  padding-bottom: 0.8rem;
}

.page-home .section-index {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--color-neon);
  opacity: 0.6;
  letter-spacing: 0.1em;
}

.page-home .section-title {
  font-family: var(--font-head);
  font-size: 1.8rem;
  color: var(--color-light);
  margin: 0;
  letter-spacing: 0.02em;
}

.page-home .services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
}

/* ---- 翻转卡片 ---- */
.page-home .service-card {
  position: relative;
  perspective: 1000px;
  min-height: 340px;
}

.page-home .card-front,
.page-home .card-back {
  position: relative;
  backface-visibility: hidden;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  border-radius: var(--radius-card);
  padding: 2rem 1.8rem;
  border: 1px solid var(--color-border-gold);
  box-shadow: var(--home-card-shadow);
  background: var(--color-primary);
  min-height: 340px;
  display: flex;
  flex-direction: column;
}

.page-home .card-front {
  transform: rotateY(0deg);
  background: linear-gradient(145deg, rgba(10,31,60,0.95), rgba(17,17,17,0.9));
}

.page-home .card-back {
  position: absolute;
  inset: 0;
  transform: rotateY(180deg);
  background: linear-gradient(145deg, rgba(212,175,55,0.08), rgba(10,31,60,0.98));
  border-color: var(--color-gold);
}

.page-home .service-card:hover .card-front,
.page-home .service-card:focus-within .card-front {
  transform: rotateY(-180deg);
}

.page-home .service-card:hover .card-back,
.page-home .service-card:focus-within .card-back {
  transform: rotateY(0deg);
}

.page-home .card-icon {
  margin-bottom: 1.2rem;
  width: 48px;
  height: 48px;
}

.page-home .card-icon svg {
  width: 48px;
  height: 48px;
}

.page-home .card-title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: var(--color-gold-bright);
  margin: 0 0 0.8rem;
  letter-spacing: 0.02em;
}

.page-home .card-brief {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-light);
  opacity: 0.85;
  flex: 1;
}

.page-home .card-cta-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-neon);
  letter-spacing: 0.08em;
  margin-top: 1rem;
  opacity: 0.6;
}

.page-home .card-back-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--color-gold-bright);
  margin: 0 0 1rem;
}

.page-home .card-back-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  flex: 1;
}

.page-home .card-back-list li {
  position: relative;
  padding: 0.4rem 0 0.4rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-light);
  opacity: 0.9;
  line-height: 1.5;
}

.page-home .card-back-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--color-neon);
  font-size: 0.9rem;
}

.page-home .card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-smooth), color var(--transition-smooth);
  width: fit-content;
}

.page-home .card-link:hover,
.page-home .card-link:focus-visible {
  border-bottom-color: var(--color-gold);
  color: var(--color-gold-bright);
}

/* ---- 帮助中心手风琴 ---- */
.page-home .help-accordion {
  padding: 3rem 1.5rem 4rem;
  background: var(--color-primary);
  position: relative;
}

.page-home .accordion-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-home .accordion-item {
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-gold);
  background: rgba(17,17,17,0.6);
  backdrop-filter: blur(4px);
  overflow: hidden;
  transition: border-color var(--transition-smooth);
}

.page-home .accordion-item[open] {
  border-color: var(--color-gold);
  box-shadow: 0 0 20px rgba(212,175,55,0.08);
}

.page-home .accordion-summary {
  display: flex;
  align-items: center;
  padding: 1.2rem 1.5rem;
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--color-light);
  cursor: pointer;
  list-style: none;
  gap: 0.8rem;
  transition: color var(--transition-smooth);
  user-select: none;
}

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

.page-home .accordion-summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--color-gold);
  flex-shrink: 0;
  width: 1.6rem;
  text-align: center;
  transition: transform var(--transition-smooth);
}

.page-home .accordion-item[open] > .accordion-summary::before {
  content: "−";
  transform: rotate(180deg);
}

.page-home .accordion-item[open] > .accordion-summary {
  color: var(--color-gold-bright);
}

.page-home .accordion-body {
  padding: 0 1.5rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-light);
  opacity: 0.88;
}

.page-home .accordion-body p {
  margin: 0;
}

/* ---- 模态框 ---- */
.page-home .modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.page-home .modal-overlay.is-open {
  display: flex;
}

.page-home .modal-container {
  background: var(--color-primary);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-card);
  max-width: 520px;
  width: 100%;
  padding: 2rem 2rem 1.8rem;
  box-shadow: var(--shadow-float);
  position: relative;
  animation: modal-enter 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes modal-enter {
  from { opacity: 0; transform: translateY(30px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.page-home .modal-close {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  background: transparent;
  border: none;
  color: var(--color-light);
  font-size: 1.4rem;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
  line-height: 1;
  padding: 0.2rem;
}

.page-home .modal-close:hover,
.page-home .modal-close:focus-visible {
  opacity: 1;
  transform: rotate(90deg);
}

.page-home .modal-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.page-home .modal-emblem {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(212,175,55,0.4));
}

.page-home .modal-title {
  font-family: var(--font-head);
  font-size: 1.4rem;
  color: var(--color-gold-bright);
  margin: 0;
}

.page-home .modal-body {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-light);
}

.page-home .modal-desc {
  margin: 0 0 1rem;
  opacity: 0.88;
}

.page-home .modal-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-home .modal-features li {
  padding: 0.3rem 0 0.3rem 1.6rem;
  position: relative;
  font-size: 0.9rem;
  opacity: 0.85;
}

.page-home .modal-features li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-size: 0.7rem;
  top: 0.5rem;
}

.page-home .modal-footnote {
  font-size: 0.8rem;
  opacity: 0.6;
  font-style: italic;
  margin-top: 0.8rem;
}

.page-home .modal-footer {
  margin-top: 1.5rem;
  text-align: center;
}

.page-home .modal-footer .btn-gold {
  padding: 0.7rem 2rem;
  font-size: 0.9rem;
}

/* ---- 桌面端增强 (≥768px) ---- */
@media (min-width: 768px) {
  .page-home .hero-diagonal {
    flex-direction: row;
    min-height: 86vh;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    background: var(--color-primary);
  }

  .page-home .hero-left {
    flex: 0 0 52%;
    align-items: flex-start;
    text-align: left;
    padding: 4rem 3rem 4rem 5%;
    background: linear-gradient(135deg, rgba(10,31,60,0.98) 60%, rgba(10,31,60,0.85) 100%);
    clip-path: polygon(0 0, 100% 0, 88% 100%, 0 100%);
    z-index: 3;
  }

  .page-home .hero-right {
    flex: 1;
    padding: 3rem 5% 3rem 2rem;
    background: rgba(17,17,17,0.6);
    border-top: none;
    border-left: 2px solid var(--color-border-gold);
    clip-path: polygon(12% 0, 100% 0, 100% 100%, 0 100%);
    margin-left: -6%;
    display: flex;
    align-items: center;
  }

  .page-home .hero-desc {
    margin: 0 0 1.8rem;
  }

  .page-home .hero-headline {
    font-size: clamp(3.2rem, 6vw, 5.6rem);
  }

  .page-home .carousel-img {
    max-height: 420px;
  }

  /* 对角线装饰 */
  .page-home .diagonal-divider {
    display: block;
    position: absolute;
    top: 0;
    left: 48%;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-gold), var(--color-neon), var(--color-gold));
    z-index: 5;
    opacity: 0.5;
    transform: skewX(-6deg);
    box-shadow: 0 0 30px rgba(57,255,20,0.2);
    pointer-events: none;
  }

  /* 服务网格三列 */
  .page-home .services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: var(--max-width, 1320px);
    margin: 0 auto;
  }

  .page-home .services-core {
    padding: 5rem 5% 4rem;
  }

  .page-home .section-title {
    font-size: 2.2rem;
  }

  .page-home .help-accordion {
    padding: 4rem 5% 5rem;
  }

  .page-home .accordion-container {
    max-width: 860px;
  }

  .page-home .card-front,
  .page-home .card-back {
    min-height: 380px;
    padding: 2.2rem 2rem;
  }

  .page-home .service-card {
    min-height: 380px;
  }
}

/* ---- 宽屏增强 (≥1200px) ---- */
@media (min-width: 1200px) {
  .page-home .hero-left {
    padding: 5rem 4rem 5rem 8%;
  }

  .page-home .hero-right {
    padding: 3rem 8% 3rem 3rem;
  }

  .page-home .services-core {
    padding: 6rem 8% 5rem;
  }

  .page-home .services-grid {
    gap: 2.5rem;
  }

  .page-home .help-accordion {
    padding: 5rem 8% 6rem;
  }
}

/* ---- 减少动效偏好 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .page-home .card-front,
  .page-home .card-back {
    transition: none;
  }

  .page-home .service-card:hover .card-front,
  .page-home .service-card:focus-within .card-front {
    transform: none;
  }

  .page-home .service-card:hover .card-back,
  .page-home .service-card:focus-within .card-back {
    transform: none;
  }

  .page-home .card-back {
    display: none;
  }

  .page-home .service-card:hover .card-back,
  .page-home .service-card:focus-within .card-back {
    display: flex;
  }

  .page-home .modal-container {
    animation: none;
  }

  .page-home .emblem-ring {
    animation: none;
    opacity: 0.4;
  }

  .page-home .pulse-gold {
    animation: none;
    filter: drop-shadow(0 0 12px rgba(212,175,55,0.4));
  }
}
```