:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1a1d24;
  --text-2: #6b7280;
  --border: #e5e7eb;
  --cn: #e02f2f;
  --cn-soft: #fdeaea;
  --us: #2456c9;
  --us-soft: #e9effc;
  --bar: #eef0f3;
  --voted: #16a34a;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.05);
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101318;
    --card: #1a1f27;
    --text: #eceef2;
    --text-2: #98a0ad;
    --border: #2a313c;
    --cn-soft: #3a2224;
    --us-soft: #1f2a44;
    --bar: #242b36;
    --shadow: 0 1px 3px rgba(0,0,0,.4);
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* ── 顶栏 ── */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px;
  background: color-mix(in srgb, var(--card) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { font-size: 20px; font-weight: 800; letter-spacing: .5px; }
.logo-arrow { color: var(--cn); margin: 0 2px; }
.country-pair { margin-left: auto; font-size: 15px; color: var(--text-2); }
.lang-btn {
  border: 1.5px solid var(--border); background: transparent; color: var(--text);
  border-radius: 999px; padding: 5px 14px; font-size: 13.5px; font-weight: 700;
  cursor: pointer; transition: border-color .15s, color .15s;
}
.lang-btn:hover { border-color: var(--us); color: var(--us); }

.hamburger {
  width: 40px; height: 40px; border: none; border-radius: 10px;
  background: transparent; cursor: pointer;
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.hamburger:hover { background: var(--bar); }
.hamburger span {
  display: block; width: 20px; height: 2px; border-radius: 2px;
  background: var(--text); transition: transform .25s, opacity .25s;
}
body.drawer-open .hamburger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.drawer-open .hamburger span:nth-child(2) { opacity: 0; }
body.drawer-open .hamburger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── 抽屉 ── */
.drawer {
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 40;
  width: 260px; max-width: 80vw;
  background: var(--card);
  border-right: 1px solid var(--border);
  transform: translateX(-100%);
  transition: transform .28s cubic-bezier(.4,0,.2,1);
  display: flex; flex-direction: column;
  padding-top: 64px;
}
body.drawer-open .drawer { transform: translateX(0); box-shadow: var(--shadow); }
.drawer-mask {
  position: fixed; inset: 0; z-index: 35;
  background: rgba(0,0,0,.35);
  opacity: 0; pointer-events: none; transition: opacity .28s;
}
body.drawer-open .drawer-mask { opacity: 1; pointer-events: auto; }

.drawer-header {
  padding: 8px 20px 12px; font-size: 13px; font-weight: 600;
  color: var(--text-2); text-transform: uppercase; letter-spacing: 1px;
}
.category-list { list-style: none; flex: 1; overflow-y: auto; }
.category-list button {
  display: flex; align-items: center; gap: 12px;
  width: 100%; padding: 13px 20px;
  border: none; background: transparent; cursor: pointer;
  font-size: 16px; color: var(--text); text-align: left;
}
.category-list button:hover { background: var(--bar); }
.category-list button.active {
  background: var(--cn-soft); color: var(--cn); font-weight: 700;
  border-right: 3px solid var(--cn);
}
.category-list .cat-icon { font-size: 20px; }
.drawer-footer { padding: 16px 20px; font-size: 13px; color: var(--text-2); border-top: 1px solid var(--border); }

/* ── 信息流 ── */
.feed { max-width: 640px; margin: 0 auto; padding: 20px 16px 80px; }
.intro { font-size: 14px; color: var(--text-2); margin-bottom: 18px; }
.intro b { color: var(--text); }
.loading { text-align: center; color: var(--text-2); padding: 40px 0; }

/* ── 对比卡片 ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  overflow: hidden;
}
/* ── 1v1 对照头部：左右两侧 + 中间 ⇄ ── */
.pair {
  display: flex; align-items: stretch;
  padding: 20px 14px 16px;
}
.pair-side {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 7px;
  color: inherit; text-decoration: none; cursor: pointer;
  border-radius: 12px; padding: 6px 4px; margin: -6px -4px;
  transition: background .15s;
}
.pair-side:hover { background: var(--bar); }
.pair-country {
  font-size: 11.5px; font-weight: 700; letter-spacing: .5px;
  color: var(--text-2); text-transform: uppercase;
}
.pair-mid {
  flex-shrink: 0; align-self: center;
  font-size: 22px; font-weight: 700; color: var(--text-2);
  padding: 0 10px;
}
.pair-logo {
  width: 64px; height: 64px; border-radius: 15px;
  background: var(--bar); overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow);
}
.pair-img { width: 100%; height: 100%; object-fit: contain; border-radius: 15px; }
.pair-name { font-size: 16.5px; font-weight: 800; line-height: 1.25; }
.pair-sub { font-size: 12.5px; color: var(--text-2); line-height: 1.35; }
.pair-best { color: var(--us); font-weight: 600; }

/* ── 应用 logo 通用 ── */
.logo-fallback {
  display: flex; align-items: center; justify-content: center;
  background: var(--us-soft); color: var(--us);
  font-weight: 800; border-radius: 10px;
}
.pair-logo .logo-fallback { width: 100%; height: 100%; font-size: 26px; }

.alt-logo-wrap { position: relative; flex-shrink: 0; width: 40px; height: 40px; }
.alt-logo {
  width: 40px; height: 40px; border-radius: 10px; object-fit: contain;
  background: #fff; border: 1px solid var(--border); display: block;
}
span.alt-logo { font-size: 18px; }

.alts { border-top: 1px dashed var(--border); padding: 6px 10px 10px; }
.alts-label { font-size: 12px; color: var(--text-2); padding: 8px 8px 4px; }

.alt {
  position: relative;
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; margin: 3px 0;
  border-radius: 12px; border: 1px solid transparent;
  cursor: pointer; overflow: hidden;
  transition: border-color .15s, background .15s;
}
.alt:hover { border-color: var(--us); }
.alt-bar {
  position: absolute; left: 0; top: 0; bottom: 0; z-index: 0;
  background: var(--us-soft); width: 0;
  transition: width .6s cubic-bezier(.4,0,.2,1);
}
.alt > *:not(.alt-bar) { position: relative; z-index: 1; }
.alt-info { min-width: 0; flex: 1; }
.alt-name { font-size: 15.5px; font-weight: 600; }
.alt-desc { font-size: 12.5px; color: var(--text-2); }
.alt-stat { flex-shrink: 0; text-align: right; }
.alt-pct { font-size: 15px; font-weight: 700; color: var(--us); }
.alt-count { font-size: 11.5px; color: var(--text-2); }
.alt-votebtn {
  flex-shrink: 0; border: 1.5px solid var(--us); color: var(--us);
  background: transparent; border-radius: 999px;
  padding: 5px 14px; font-size: 13.5px; font-weight: 600; cursor: pointer;
  transition: background .15s, color .15s;
}
.alt:hover .alt-votebtn { background: var(--us); color: #fff; }

.card.voted .alt { cursor: default; }
.card.voted .alt:hover { border-color: transparent; }
.alt.my-vote { border-color: var(--voted) !important; }
.alt.my-vote .alt-pct { color: var(--voted); }
.voted-tag { font-size: 12px; color: var(--voted); font-weight: 700; margin-left: 6px; }
.community-tag {
  font-size: 11px; color: var(--text-2); font-weight: 600; margin-left: 6px;
  background: var(--bar); padding: 1.5px 7px; border-radius: 999px;
  vertical-align: 1px;
}
.alt-hidden { display: none; }

/* 行内 ↗ 打开官网/App */
.alt-link {
  border: none; background: none; cursor: pointer;
  color: var(--text-2); font-size: 13px; font-weight: 700;
  margin-left: 4px; padding: 2px 5px; border-radius: 6px;
  vertical-align: 1px;
}
.alt-link:hover { color: var(--us); background: var(--us-soft); }

/* 折叠开关 */
.alts-toggle {
  display: block; width: calc(100% - 6px); margin: 4px 3px 0;
  padding: 9px; border: none; border-radius: 10px;
  background: none; color: var(--us); font-size: 13.5px; font-weight: 600;
  cursor: pointer;
}
.alts-toggle:hover { background: var(--us-soft); }

/* 用户提交备选 */
.suggest { margin: 2px 3px 4px; }
.suggest-entry {
  display: block; width: 100%; padding: 9px;
  border: 1.5px dashed var(--border); border-radius: 10px;
  background: none; color: var(--text-2); font-size: 13.5px;
  cursor: pointer; transition: border-color .15s, color .15s;
}
.suggest-entry:hover { border-color: var(--us); color: var(--us); }
.suggest-form { display: flex; flex-direction: column; gap: 8px; padding: 10px 4px 4px; }
.suggest-form[hidden] { display: none; }
.suggest-form input {
  padding: 9px 12px; border: 1.5px solid var(--border); border-radius: 10px;
  background: var(--card); color: var(--text); font-size: 14px; outline: none;
}
.suggest-form input:focus { border-color: var(--us); }
.suggest-actions { display: flex; gap: 8px; }
.suggest-submit {
  flex: 1; padding: 9px; border: none; border-radius: 10px;
  background: var(--us); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer;
}
.suggest-cancel {
  padding: 9px 16px; border: 1.5px solid var(--border); border-radius: 10px;
  background: none; color: var(--text-2); font-size: 14px; cursor: pointer;
}
.card-total {
  padding: 8px 18px 14px; font-size: 12.5px; color: var(--text-2); text-align: right;
}

/* ── 提示 ── */
.toast {
  position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg);
  padding: 10px 20px; border-radius: 999px; font-size: 14px;
  opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s;
  z-index: 50; max-width: 85vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 480px) {
  .pair-logo { width: 54px; height: 54px; }
  .pair-name { font-size: 15px; }
  .country-pair { display: none; }
}