/* ============ 基础变量 ============ */
:root {
  --bg: #0b0e17;
  --bg-soft: #111527;
  --card: #161b2e;
  --card-hover: #1c2340;
  --border: rgba(255, 255, 255, 0.08);
  --text: #eef1f8;
  --text-dim: #9aa3b8;
  --accent: #7c5cff;
  --accent-2: #00d4ff;
  --green: #34d39b;
  --radius: 18px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

a { color: inherit; text-decoration: none; }
img { display: block; }
button { font-family: inherit; cursor: pointer; }

/* ============ 顶部导航 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(11, 14, 23, 0.75);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand-logo {
  font-size: 26px;
  filter: drop-shadow(0 2px 8px rgba(124, 92, 255, 0.6));
}

.brand-name { font-size: 18px; font-weight: 700; letter-spacing: 0.5px; }
.brand-name em { font-style: normal; color: var(--accent-2); }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  border: none;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn:hover { transform: translateY(-2px); }

.btn-play-header {
  padding: 8px 18px;
  font-size: 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
}

.btn-play-header:hover { background: rgba(255, 255, 255, 0.15); }

/* ============ 语言切换器 ============ */
.header-actions { display: flex; align-items: center; gap: 12px; }

.lang-switcher { position: relative; }

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background 0.2s, border-color 0.2s;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--accent);
}

.lang-btn #langLabel { min-width: 22px; text-align: center; }

.lang-caret { font-size: 10px; color: var(--text-dim); }

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 60;
  min-width: 150px;
  list-style: none;
  background: var(--card-hover);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 6px;
  box-shadow: var(--shadow);
  animation: fadeIn 0.18s ease;
}

.lang-menu li {
  padding: 9px 14px;
  font-size: 14px;
  color: var(--text-dim);
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.lang-menu li:hover { background: rgba(255, 255, 255, 0.08); color: var(--text); }

.lang-menu li.active {
  color: var(--accent-2);
  font-weight: 700;
  background: rgba(0, 212, 255, 0.08);
}

.lang-menu li.active::after { content: " ✓"; }

.btn-hero {
  padding: 12px 28px;
  font-size: 15px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 30px rgba(124, 92, 255, 0.45);
}

.btn-play-big {
  width: 100%;
  justify-content: center;
  padding: 15px 24px;
  font-size: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 30px rgba(124, 92, 255, 0.4);
  margin-top: 8px;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  overflow: hidden;
  padding: 44px 0 30px;
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 20% 10%, rgba(124, 92, 255, 0.25), transparent 70%),
    radial-gradient(600px 300px at 80% 20%, rgba(0, 212, 255, 0.18), transparent 70%),
    radial-gradient(500px 250px at 50% 90%, rgba(52, 211, 155, 0.1), transparent 70%);
  pointer-events: none;
}

.hero-inner { position: relative; }

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--accent-2);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 999px;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(120deg, #fff 30%, var(--accent-2) 70%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}

.hero-sub { color: var(--text-dim); font-size: 15px; max-width: 640px; margin: 0 auto 20px; }

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.stat strong {
  display: block;
  font-size: 26px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat span { font-size: 14px; color: var(--text-dim); }

/* ============ 应用区 ============ */
.apps-section { padding: 36px 24px 80px; }

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 30px;
}

.section-head h2 { font-size: 28px; font-weight: 800; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; }

.chip {
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all 0.2s;
}

.chip:hover { color: var(--text); border-color: var(--accent); }

.chip.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

/* ============ 应用卡片 ============ */
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.app-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: transform 0.25s, background 0.25s, border-color 0.25s, box-shadow 0.25s;
  animation: fadeUp 0.5s ease both;
}

.app-card:hover {
  transform: translateY(-6px);
  background: var(--card-hover);
  border-color: rgba(124, 92, 255, 0.5);
  box-shadow: var(--shadow);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-top { display: flex; gap: 16px; align-items: center; margin-bottom: 14px; }

.app-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-soft);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

.card-title-wrap { min-width: 0; }

.app-name {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.app-category {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-top: 3px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.rating-badge { color: #ffc94d; font-weight: 700; }

.app-desc {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}

.app-downloads { font-size: 12.5px; color: var(--text-dim); }

.card-cta {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-2);
  transition: gap 0.2s;
}

.app-card:hover .card-cta { color: #fff; }

/* ============ 详情弹窗 ============ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(5, 7, 14, 0.78);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.25s ease;
}

.modal-backdrop[hidden] { display: none; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 86vh;
  overflow-y: auto;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 32px;
  box-shadow: var(--shadow);
  animation: popIn 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.92) translateY(16px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-dim);
  font-size: 15px;
  transition: all 0.2s;
}

.modal-close:hover { color: #fff; background: rgba(255, 255, 255, 0.15); }

.modal-top { display: flex; gap: 18px; align-items: center; margin-bottom: 18px; }

.modal-icon {
  width: 84px;
  height: 84px;
  border-radius: 20px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

.modal-title-wrap h3 { font-size: 19px; font-weight: 800; line-height: 1.4; padding-right: 24px; }

.modal-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }

.modal-chips .m-chip {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
}

.modal-chips .m-chip.hl { color: #ffc94d; border-color: rgba(255, 201, 77, 0.35); background: rgba(255, 201, 77, 0.08); }

.modal-desc {
  font-size: 14.5px;
  color: var(--text);
  background: rgba(124, 92, 255, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 12px 16px;
  margin-bottom: 20px;
}

.modal-block { margin-bottom: 18px; }

.modal-block h4 { font-size: 15px; font-weight: 700; margin-bottom: 10px; }

.modal-block ul { list-style: none; display: grid; gap: 7px; }

.modal-block li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  color: var(--text-dim);
}

.modal-block li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

.modal-block p { font-size: 13.5px; color: var(--text-dim); line-height: 1.8; }

/* ============ 页脚 ============ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-dim);
}

.footer-inner a { color: var(--accent-2); }
.footer-inner a:hover { text-decoration: underline; }

/* ============ 主推应用轮播 ============ */
.featured { padding: 10px 24px 0; }

.featured-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.featured-head h2 { font-size: 28px; font-weight: 800; }

.carousel-controls { display: flex; align-items: center; gap: 14px; }

.carousel-arrow {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-dim);
  font-size: 24px;
  line-height: 1;
  padding-bottom: 3px;
  transition: all 0.2s;
}

.carousel-arrow:hover {
  color: #fff;
  border-color: var(--accent);
  background: rgba(124, 92, 255, 0.25);
}

.carousel-dots { display: flex; gap: 8px; }

.carousel-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  transition: all 0.3s;
}

.carousel-dot.active {
  width: 24px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.carousel { overflow: hidden; }

.carousel-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide { flex: 0 0 100%; min-width: 100%; }

.slide-inner {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 42px 52px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.18), rgba(0, 212, 255, 0.07) 55%, rgba(17, 21, 39, 0.5));
}

.slide-icon {
  width: 120px;
  height: 120px;
  border-radius: 28px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.5);
}

.slide-badge {
  display: inline-block;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 700;
  color: #ffc94d;
  background: rgba(255, 201, 77, 0.1);
  border: 1px solid rgba(255, 201, 77, 0.35);
  border-radius: 999px;
  margin-bottom: 12px;
}

.slide-name { font-size: 25px; font-weight: 800; margin-bottom: 8px; }

.slide-desc {
  color: var(--text-dim);
  font-size: 14.5px;
  max-width: 560px;
  margin-bottom: 14px;
}

.slide-meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.slide-meta .slide-rating { color: #ffc94d; font-weight: 700; }

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

.btn-slide-detail {
  padding: 10px 24px;
  font-size: 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
}

.btn-slide-detail:hover { background: rgba(255, 255, 255, 0.16); }

.btn-slide-play {
  padding: 10px 24px;
  font-size: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 22px rgba(124, 92, 255, 0.4);
}

/* ============ 响应式 ============ */
@media (max-width: 640px) {
  .hero { padding: 32px 0 24px; }
  .hero-stats { gap: 28px; }
  .stat strong { font-size: 22px; }
  .modal { padding: 24px 20px; }
  .modal-top { flex-direction: column; align-items: flex-start; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .featured-head { flex-direction: column; align-items: flex-start; }
  .slide-inner {
    flex-direction: column;
    text-align: center;
    gap: 22px;
    padding: 32px 22px;
  }
  .slide-icon { width: 96px; height: 96px; border-radius: 22px; }
  .slide-name { font-size: 21px; }
  .slide-meta { justify-content: center; }
  .slide-actions { justify-content: center; }
}