/* ══════════════════════════════════════════════
   App 墙 —— Apple 风格 · 深浅色自适应 · 全面移动端适配
   ══════════════════════════════════════════════ */

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

:root {
  --bg: #f5f5f7;
  --bg-elevated: #ffffff;
  --text: #1d1d1f;
  --text-2: #6e6e73;
  --text-3: #8e8e93;
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.16);
  --chip-bg: rgba(0, 0, 0, 0.05);
  --header-bg: rgba(245, 245, 247, 0.72);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.12);
  --page-pad: 24px;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #000000;
  --bg-elevated: #1c1c1e;
  --text: #f5f5f7;
  --text-2: #a1a1a6;
  --text-3: #8e8e93;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.22);
  --chip-bg: rgba(255, 255, 255, 0.09);
  --header-bg: rgba(0, 0, 0, 0.65);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.55);
  --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.65);
  color-scheme: dark;
}

html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
    "Helvetica Neue", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  transition: background 0.35s, color 0.35s;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;                       /* 装饰光晕不允许撑出横向滚动 */
  -webkit-text-size-adjust: 100%;           /* 禁止 iOS 横屏自动放大文字 */
  text-size-adjust: 100%;
}
a { color: inherit; }

/* ── 触屏基础优化 ───────────────────────────
   去掉 iOS 点按灰色高光；去掉双击缩放延迟 */
button, a, .card, .filter-chip {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ── 页眉（液态玻璃 + 刘海/灵动岛安全区） ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px var(--page-pad);
  /* 添加到主屏（standalone）时内容避开状态栏；横屏时避开刘海 */
  padding-top: calc(14px + env(safe-area-inset-top));
  padding-left: max(var(--page-pad), env(safe-area-inset-left));
  padding-right: max(var(--page-pad), env(safe-area-inset-right));
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.brand-logo {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, #0a84ff, #5e5ce6);
  color: #fff;
  display: grid; place-items: center;
  font-size: 16px; font-weight: 700;
}
#themeToggle {
  display: inline-flex; align-items: center; gap: 6px;
  height: 34px;
  padding: 0 13px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-2);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  transition: color 0.2s, border-color 0.2s, transform 0.15s;
}
#themeToggle:hover { color: var(--text); border-color: var(--border-strong); }
#themeToggle:active { transform: scale(0.94); }
#themeToggle svg { display: none; }
[data-theme-mode="auto"]  #themeToggle .icon-auto { display: block; }
[data-theme-mode="light"] #themeToggle .icon-sun  { display: block; }
[data-theme-mode="dark"]  #themeToggle .icon-moon { display: block; }

/* ── Hero ─────────────────────────────────── */
.hero {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: 88px var(--page-pad) 40px;
  padding-left: max(var(--page-pad), env(safe-area-inset-left));
  padding-right: max(var(--page-pad), env(safe-area-inset-right));
  text-align: center;
  overflow: visible;
}
.hero-blobs {
  position: absolute;
  inset: -60px 0 0;
  z-index: -1;
  filter: blur(90px);
  opacity: 0.4;
  pointer-events: none;
}
[data-theme="dark"] .hero-blobs { opacity: 0.28; }
.hero-blobs span { position: absolute; width: 340px; height: 340px; border-radius: 50%; }
.hero-blobs span:nth-child(1) { left: 6%;  top: 10%; background: #34c759; }
.hero-blobs span:nth-child(2) { right: 4%; top: 0;   background: #0a84ff; }
.hero-blobs span:nth-child(3) { left: 38%; top: 46%; background: #ff2d55; }
.hero-blobs span:nth-child(4) { right: 26%; top: 52%; background: #00c7be; }

.hero h1 {
  font-size: clamp(34px, 5.5vw, 58px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
}
.hero .hero-sub {
  margin: 20px auto 0;
  max-width: 560px;
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.65;
  color: var(--text-2);
}
.hero-stats {
  margin-top: 32px;
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stats .stat { display: flex; align-items: baseline; gap: 8px; }
.hero-stats .num {
  font-size: 34px; font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.hero-stats .lbl { font-size: 14px; color: var(--text-3); }

/* ── 筛选栏 ───────────────────────────────── */
.filter-bar {
  max-width: 1120px;
  margin: 8px auto 0;
  padding: 0 var(--page-pad) 8px;
  padding-left: max(var(--page-pad), env(safe-area-inset-left));
  padding-right: max(var(--page-pad), env(safe-area-inset-right));
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}
.filter-chip {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  padding: 7px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-chip:hover { border-color: var(--border-strong); color: var(--text); }
.filter-chip:active { transform: scale(0.95); }
.filter-chip.active {
  background: var(--text);
  color: var(--bg);
  border-color: transparent;
}

/* ── 应用墙 ───────────────────────────────── */
main { flex: 1; width: 100%; }
.app-grid {
  max-width: 1120px;
  margin: 24px auto 80px;
  padding: 0 var(--page-pad);
  padding-left: max(var(--page-pad), env(safe-area-inset-left));
  padding-right: max(var(--page-pad), env(safe-area-inset-right));
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  --accent: #0a84ff;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 26px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s, opacity 0.25s;
  animation: card-in 0.5s backwards;
  -webkit-user-select: none;
  user-select: none;
}
.card:nth-child(1) { animation-delay: 0.02s; }
.card:nth-child(2) { animation-delay: 0.07s; }
.card:nth-child(3) { animation-delay: 0.12s; }
.card:nth-child(4) { animation-delay: 0.17s; }
.card:nth-child(5) { animation-delay: 0.22s; }
@keyframes card-in {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}
/* 悬浮抬升只在有鼠标的设备上启用（触屏上避免“点按后卡在悬停态”） */
@media (hover: hover) and (pointer: fine) {
  .card:hover {
    transform: translateY(-5px);
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
    box-shadow: var(--shadow-hover),
      0 0 0 1px color-mix(in srgb, var(--accent) 18%, transparent),
      0 18px 48px -12px color-mix(in srgb, var(--accent) 32%, transparent);
  }
}
/* 触屏 / 键盘的替代反馈 */
.card:active { transform: scale(0.985); transition-duration: 0.1s; }
.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.card.hidden { display: none; }

.card-top { display: flex; gap: 16px; align-items: center; }
.app-icon {
  width: 84px; height: 84px;
  border-radius: 20%;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.14);
  background: var(--chip-bg);
}
.app-icon-placeholder {
  display: grid; place-items: center;
  font-size: 34px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 55%, #000));
}
.card-head { min-width: 0; }
.card-name {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap;
}
.badge {
  font-size: 11px; font-weight: 600;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  padding: 2px 9px;
  border-radius: 999px;
  white-space: nowrap;
}
.card-subtitle {
  margin-top: 4px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.45;
}
.card-desc {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-2);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-tags { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 12px;
  color: var(--text-3);
  background: var(--chip-bg);
  padding: 4px 11px;
  border-radius: 999px;
}
.card-foot {
  margin-top: auto;
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.store-link {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 15px; font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}
.store-link:hover { text-decoration: underline; }
.store-link:active { opacity: 0.6; }
.detail-hint { font-size: 12px; color: var(--text-3); transition: color 0.2s; }
.card:hover .detail-hint { color: var(--text-2); }

.soon {
  font-size: 13px;
  color: var(--text-3);
  border: 1px dashed var(--border-strong);
  padding: 5px 14px;
  border-radius: 999px;
}

/* 「更多应用」占位卡 */
.card.ghost {
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 240px;
  border-style: dashed;
  border-color: var(--border-strong);
  background: transparent;
  box-shadow: none;
  color: var(--text-3);
  font-size: 14px;
  cursor: default;
}
.card.ghost:hover { transform: none; box-shadow: none; border-color: var(--border-strong); }
.ghost-plus { font-size: 28px; font-weight: 300; }

/* ── 详情弹窗 ─────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.45);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  z-index: 100;
  opacity: 0; pointer-events: none;
  transition: opacity 0.28s;
}
.modal-backdrop.open { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 30px;
  width: 100%;
  max-width: 580px;
  max-height: min(660px, 90vh);
  max-height: min(660px, 90dvh);   /* iOS 地址栏收起/展开时也正确 */
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 30px;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.28s;
}
.modal-backdrop.open .modal { transform: none; }

.modal-head { --accent: #0a84ff; display: flex; gap: 18px; align-items: center; }
.modal-head .app-icon { width: 92px; height: 92px; }
.modal-head-text { flex: 1; min-width: 0; }
.modal-head-text h2 {
  font-size: 24px; font-weight: 800; letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.modal-head-text p { margin-top: 4px; font-size: 15px; color: var(--text-2); line-height: 1.5; }
.modal-close {
  align-self: flex-start;
  width: 32px; height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--chip-bg);
  color: var(--text-2);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}
.modal-close:hover { background: color-mix(in srgb, var(--text) 12%, transparent); color: var(--text); }
.modal-close:active { transform: scale(0.9); }
.modal-desc { margin-top: 20px; font-size: 15px; line-height: 1.7; color: var(--text-2); }
.feature-list { margin-top: 18px; list-style: none; display: flex; flex-direction: column; gap: 12px; }
.feature-list li {
  position: relative;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.55;
}
.feature-list li::before {
  content: "✓";
  position: absolute; left: 0; top: 1px;
  width: 21px; height: 21px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent, #34c759) 15%, transparent);
  color: var(--accent, #34c759);
  font-size: 12px; font-weight: 700;
  display: grid; place-items: center;
}
.modal-foot {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
}
.store-btn {
  display: inline-flex; align-items: center; gap: 9px;
  background: #000; color: #fff;
  font-size: 16px; font-weight: 600;
  font-family: inherit;
  padding: 13px 30px;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.2s, opacity 0.2s;
  min-height: 48px;
}
.store-btn:hover { transform: scale(1.03); opacity: 0.9; }
.store-btn:active { transform: scale(0.97); }
[data-theme="dark"] .store-btn { background: #fff; color: #000; }
.soon-lg { font-size: 15px; padding: 12px 34px; }

/* ── 页脚（含 ICP 备案行 + 底部安全区） ──── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px var(--page-pad);
  padding-bottom: calc(28px + env(safe-area-inset-bottom)); /* 避开 iPhone 底部横条 */
  padding-left: max(var(--page-pad), env(safe-area-inset-left));
  padding-right: max(var(--page-pad), env(safe-area-inset-right));
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
}
.site-footer .beian { margin-top: 8px; font-size: 12px; }
.site-footer a { color: var(--text-2); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ══════════════════════════════════════════
   移动端（≤ 640px）
   ══════════════════════════════════════════ */
@media (max-width: 640px) {
  :root { --page-pad: 16px; }

  /* 页眉 */
  .header-inner { padding-top: calc(10px + env(safe-area-inset-top)); padding-bottom: 10px; }
  .brand { font-size: 16px; }
  #themeToggle { height: 38px; }               /* 触控目标加大 */

  /* Hero：留得更紧凑，光晕缩小减负（低端机 GPU） */
  .hero { padding-top: 44px; padding-bottom: 28px; }
  .hero-blobs { filter: blur(64px); }
  .hero-blobs span { width: 210px; height: 210px; }
  .hero .hero-sub { margin-top: 14px; }
  .hero-stats { margin-top: 22px; gap: 22px; }
  .hero-stats .num { font-size: 27px; }
  .hero-stats .lbl { font-size: 13px; }

  /* 筛选栏：横向滑动一行（分类多时不用换行占两屏） */
  .filter-bar {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 12px;
  }
  .filter-bar::-webkit-scrollbar { display: none; }
  .filter-chip { flex-shrink: 0; padding: 8px 17px; min-height: 40px; }

  /* 卡片：单列、更紧凑 */
  .app-grid { grid-template-columns: 1fr; gap: 14px; margin: 14px auto 48px; }
  .card { padding: 20px 18px; border-radius: 24px; }
  .card-top { gap: 14px; }
  .app-icon { width: 66px; height: 66px; }
  .card-name { font-size: 18px; }
  .card-desc { margin-top: 12px; -webkit-line-clamp: 2; }
  .card-tags { margin-top: 10px; }
  .card-foot { padding-top: 14px; }
  .store-link { font-size: 16px; }             /* Apple HIG：主要操作 ≥ 17px 级别可点区域 */
  .card.ghost { flex-direction: row; min-height: 72px; padding: 18px; }
  .ghost-plus { font-size: 22px; }

  /* 弹窗改为 iOS 底部抽屉：从底部滑入、仅上圆角、避开 Home 横条 */
  .modal-backdrop { padding: 0; align-items: flex-end; }
  .modal {
    border-radius: 28px 28px 0 0;
    border-left: none; border-right: none; border-bottom: none;
    max-width: none;
    max-height: 92vh;
    max-height: 92dvh;
    padding: 22px 20px calc(28px + env(safe-area-inset-bottom));
    transform: translateY(100%);
    transition: transform 0.32s cubic-bezier(0.32, 0.72, 0.32, 1); /* iOS sheet 曲线 */
  }
  .modal-backdrop.open .modal { transform: none; }
  .modal-head { gap: 14px; }
  .modal-head .app-icon { width: 72px; height: 72px; }
  .modal-head-text h2 { font-size: 21px; }
  .modal-head-text p { font-size: 14px; }
  .modal-close { width: 40px; height: 40px; font-size: 24px; }  /* 触控目标 ≥ 44px 级 */
  .feature-list li { font-size: 14px; }
  .modal-foot { margin-top: 20px; padding-top: 18px; }
}

/* 触屏设备：隐藏「了解详情」提示（点击悬浮提示无意义） */
@media (hover: none) {
  .detail-hint { display: none; }
}

/* 超小屏（iPhone SE / 320px） */
@media (max-width: 380px) {
  .hero h1 { font-size: 30px; }
  .hero-stats { gap: 14px; }
  .app-icon { width: 58px; height: 58px; }
  .card-name { font-size: 17px; }
  .tag { font-size: 11px; padding: 3px 9px; }
  .store-link { font-size: 15px; }
}

/* ── 减少动态效果（无障碍） ──────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}