:root {
  color-scheme: dark light;
  --canvas: #0a0e14;
  --surface: #12161f;
  --surface-raised: #1a1f2b;
  --ink: #f4f6fb;
  --muted: #aeb8cb;
  --faint: #7c8798;
  --line: #2a3140;
  --accent: #f59e0b;
  --accent-deep: #b45309;
  --accent-ink: #1b0f02;
  --accent-soft: rgba(245, 158, 11, .12);
  --mint: #6ee7b7;
  --mint-ink: #032419;
  --radius: 16px;
  --max: 1260px;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: radial-gradient(circle at 88% -6%, rgba(245, 158, 11, .1), transparent 30rem),
              radial-gradient(circle at 8% 40%, rgba(110, 231, 183, .05), transparent 26rem),
              var(--canvas);
  font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
button, a { font: inherit; }
a { color: inherit; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 10; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: var(--radius); font-weight: 700; text-decoration: none; }
.skip-link:focus { top: 16px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(10, 14, 20, .82); border-bottom: 1px solid rgba(42, 49, 64, .8); backdrop-filter: blur(18px); }

/* 顶部分享条（琥珀金） */
.share-bar { background: linear-gradient(90deg, rgba(245, 158, 11, .14), rgba(245, 176, 46, .05)); border-bottom: 1px solid rgba(245, 158, 11, .32); }
.share-bar-inner { min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.share-bar-text { color: #f6c453; font-size: 13px; font-weight: 600; letter-spacing: .01em; }
.share-bar-btn { border: 1px solid #f59e0b; background: #f59e0b; color: #2b1602; font: 700 13px/1 Inter, ui-sans-serif, system-ui, sans-serif; padding: 8px 16px; border-radius: 999px; cursor: pointer; white-space: nowrap; transition: background .18s var(--ease-out, ease), border-color .18s var(--ease-out, ease), box-shadow .18s var(--ease-out, ease), color .18s var(--ease-out, ease); }
.share-bar-btn:hover { background: #ffb84d; border-color: #ffb84d; box-shadow: 0 8px 18px rgba(245, 158, 11, .3); }
.share-bar-btn.is-copied { background: #16c784; border-color: #16c784; color: #04230f; }
.share-bar-actions { display: flex; align-items: center; gap: 8px; flex: none; }
.share-bar-domain { color: #ffd98a; text-decoration: underline; text-underline-offset: 2px; }
.share-bar-btn.is-ghost { background: rgba(245, 158, 11, .08); border-color: rgba(245, 158, 11, .55); color: #f6c453; }
.share-bar-btn.is-ghost:hover { background: rgba(245, 158, 11, .2); border-color: #f59e0b; color: #ffd98a; }
.share-bar-btn.is-ghost.is-saved { background: #16c784; border-color: #16c784; color: #04230f; }
.footer-domain { color: var(--muted); }
.footer-domain a { color: #f6c453; text-decoration: none; border-bottom: 1px solid rgba(246, 196, 83, .4); }
.footer-domain a:hover { border-bottom-color: #f6c453; }
.header-inner { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; min-width: max-content; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(135deg, #f59e0b, #b45309); color: #1b0f02; font: 900 16px/1 Inter, ui-sans-serif, sans-serif; box-shadow: 0 6px 18px rgba(245, 158, 11, .25); }
.brand-text { display: grid; line-height: 1.15; }
.brand-text strong { font-size: 15px; letter-spacing: -.02em; }
.brand-text em { color: var(--muted); font-size: 11px; font-style: normal; }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a { color: var(--muted); font-size: 14px; font-weight: 600; text-decoration: none; transition: color .18s var(--ease-out), border-color .18s var(--ease-out), background .18s var(--ease-out); }
.site-nav a:hover { color: var(--ink); }
.site-nav .nav-cta { color: var(--accent); border: 1px solid rgba(245, 158, 11, .5); padding: 6px 12px; border-radius: 999px; }
.site-nav .nav-cta:hover { background: var(--accent); color: var(--accent-ink); }
.site-nav .nav-star { color: #f59e0b; border: 1px solid rgba(245, 158, 11, .45); padding: 6px 14px; border-radius: 999px; background: rgba(245, 158, 11, .06); }
.site-nav .nav-star:hover { background: #f59e0b; color: #1a1204; border-color: #f59e0b; }
.site-nav .nav-external { color: var(--accent); }
.site-nav .nav-external:hover { color: var(--accent-ink); background: var(--accent); border-radius: 999px; padding: 6px 10px; margin: -6px -10px; }
.site-nav .nav-star span { margin-right: 4px; }

.hero { padding: clamp(70px, 9vw, 124px) 0 88px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(300px, .6fr); gap: clamp(40px, 7vw, 110px); align-items: center; }
.hero-copy { max-width: 720px; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border: 1px solid rgba(245, 158, 11, .35); border-radius: 999px; background: rgba(245, 158, 11, .08); color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .04em; }
.hero-eyebrow svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.hero h1 { max-width: 720px; margin: 22px 0 0; font-size: clamp(46px, 6vw, 78px); line-height: 1.04; letter-spacing: -.04em; text-wrap: balance; }
.hero h1 .hl { color: var(--accent); text-shadow: 0 0 28px rgba(245, 158, 11, .28); }
.hero-sub { max-width: 34rem; margin: 20px 0 26px; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 20px; border: 1px solid transparent; border-radius: 12px; font-size: 14px; font-weight: 800; line-height: 1.2; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background .18s var(--ease-out), color .18s var(--ease-out), transform .18s var(--ease-out), box-shadow .18s var(--ease-out); }
.btn:active, .wechat-trigger:active { transform: scale(.98); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #ffb84d; box-shadow: 0 12px 26px rgba(245, 158, 11, .28); transform: translateY(-1px); }
.btn-ghost { border-color: rgba(245, 158, 11, .5); color: var(--accent); background: transparent; }
.btn-ghost:hover { background: var(--accent); color: var(--accent-ink); }
.hero-star span { margin-right: 6px; }
.text-link { color: var(--muted); font-size: 14px; font-weight: 700; text-underline-offset: 4px; }
.text-link:hover { color: var(--ink); }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 44px 0 0; }
.hero-stat { padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: linear-gradient(160deg, rgba(26, 31, 43, .6), rgba(18, 22, 31, .4)); }
.hero-stat dt { color: var(--faint); font-size: 12px; font-weight: 650; }
.hero-stat dd { margin: 4px 0 0; color: var(--ink); font-size: 26px; font-weight: 850; font-variant-numeric: tabular-nums; }
.hero-stat.accent dd { color: var(--accent); }

/* 观望范围卡片（优先收录） */
.watchlist { position: relative; isolation: isolate; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(150deg, rgba(26, 31, 43, .85), rgba(18, 22, 31, .7)); box-shadow: 0 24px 56px rgba(0, 0, 0, .28); overflow: hidden; }
.watchlist::before { content: ""; position: absolute; z-index: -1; width: 200px; height: 200px; right: -80px; top: -90px; border-radius: 50%; background: radial-gradient(circle, rgba(245, 158, 11, .14), transparent 68%); }
.watchlist h2 { max-width: 18ch; margin: 0; font-size: clamp(24px, 2.4vw, 30px); line-height: 1.24; letter-spacing: -.03em; }
.watchlist-gate { margin-top: 14px; display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 800; }
.watchlist-gate svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.model-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; padding: 22px 0 16px; margin: 0; list-style: none; color: var(--muted); font-size: 13px; }
.model-list li { position: relative; padding: 0 0 8px 18px; border-bottom: 1px solid var(--line); }
.model-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; }
.model-list .model-name { display: block; font-weight: 700; color: var(--ink); }
.model-list .model-note { display: block; margin-top: 2px; font-size: 11.5px; line-height: 1.4; color: var(--faint); }
.watchlist-note { max-width: 30ch; margin: 0; color: var(--faint); font-size: 13px; }

.intelligence { padding: 84px 0 96px; }
.list-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.list-head h2, .about h2, .submit h2 { margin: 0; font-size: clamp(32px, 4vw, 48px); line-height: 1.12; letter-spacing: -.035em; text-wrap: balance; }
.list-status { margin: 0; color: var(--muted); font-size: 14px; }
.filters { display: flex; gap: 8px; margin: 28px 0 32px; }
.chip { appearance: none; min-height: 40px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); padding: 8px 15px; font-size: 13px; font-weight: 700; cursor: pointer; transition: all .18s var(--ease-out); }
.chip:hover { border-color: var(--muted); color: var(--ink); }
.chip.is-active { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }

/* ========== 卡片：情报密报风（正式版） ========== */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card {
  position: relative; display: flex; flex-direction: column; min-width: 0; padding: 20px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(165deg, var(--surface), var(--surface) 70%, rgba(18, 22, 31, .7));
  box-shadow: 0 16px 36px rgba(0, 0, 0, .16);
  transition: border-color .2s var(--ease-out), transform .2s var(--ease-out), box-shadow .2s var(--ease-out);
  overflow: hidden;
}
.card::before { content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 100%; background: var(--accent); transform: scaleY(0); transform-origin: top; transition: transform .25s var(--ease-out); }
.card:hover { border-color: rgba(245, 158, 11, .55); transform: translateY(-4px); box-shadow: 0 22px 48px rgba(0, 0, 0, .26); }
.card:hover::before { transform: scaleY(1); }

/* 卡片 tone 变体 */
.card.tone-orange { background: linear-gradient(150deg, rgba(255, 166, 61, .14), rgba(255, 120, 32, .04)); border-color: rgba(255, 166, 61, .5); }
.card.tone-orange:hover { border-color: rgba(255, 166, 61, .85); background: linear-gradient(150deg, rgba(255, 166, 61, .18), rgba(255, 120, 32, .06)); }
.card.tone-orange .card-stars, .card.tone-orange .card-meta .card-type { color: #ff9f2e; }
.card.tone-yellow { background: linear-gradient(150deg, rgba(250, 204, 21, .16), rgba(234, 179, 8, .04)); border-color: rgba(250, 204, 21, .55); }
.card.tone-yellow:hover { border-color: rgba(250, 204, 21, .9); background: linear-gradient(150deg, rgba(250, 204, 21, .22), rgba(234, 179, 8, .06)); }
.card.tone-yellow .card-stars, .card.tone-yellow .card-meta .card-type { color: #eab308; }
.card.tone-green { background: linear-gradient(150deg, rgba(34, 197, 94, .14), rgba(16, 185, 129, .04)); border-color: rgba(34, 197, 94, .55); }
.card.tone-green:hover { border-color: rgba(34, 197, 94, .9); background: linear-gradient(150deg, rgba(34, 197, 94, .2), rgba(16, 185, 129, .06)); }
.card.tone-green .card-stars, .card.tone-green .card-meta .card-type { color: #22c55e; }
.card.tone-bluepurple { background: linear-gradient(150deg, rgba(99, 102, 241, .16), rgba(168, 85, 247, .06)); border-color: rgba(139, 92, 246, .55); }
.card.tone-bluepurple:hover { border-color: rgba(139, 92, 246, .9); background: linear-gradient(150deg, rgba(99, 102, 241, .22), rgba(168, 85, 247, .1)); }
.card.tone-bluepurple .card-stars, .card.tone-bluepurple .card-meta .card-type { color: #a855f7; }
.card.tone-bluepurple .card-link { border-color: #8b5cf6; background: #8b5cf6; color: #fff; }
.card.tone-bluepurple .card-link:hover { border-color: #a78bfa; background: #a78bfa; }

.card-rating { display: flex; align-items: flex-start; justify-content: space-between; margin: 0 0 12px; }
.card-stars { color: var(--accent); font-size: 14px; letter-spacing: 2px; }
.card-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 5px; }
.card-type { padding: 3px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 11px; font-weight: 800; white-space: nowrap; }
.card-limit-row { display: flex; align-items: center; gap: 6px; }
.card-badge-inline { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border: 1px solid var(--accent); border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 11px; font-weight: 800; font-variant-numeric: tabular-nums; white-space: nowrap; }
.card-title-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 12px; }
.card-title-row .card-name { margin: 0; flex: 1; min-width: 0; }
.card-name { font-size: 18px; line-height: 1.3; letter-spacing: -.02em; }
.card-modality { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.card-divider { height: 1px; margin: 14px 0; background: var(--line); border: none; }
.card-field { display: flex; align-items: flex-start; gap: 8px; padding: 7px 0; }
.card-field .ico { flex: none; width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.card-field .ico svg { width: 12px; height: 12px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.card-field .v { flex: 1; min-width: 0; color: var(--muted); font-size: 12.5px; line-height: 1.6; }
.card-field .v b, .card-field .v strong { color: var(--ink); font-weight: 750; }
.card-field .v .num { color: var(--accent); font-weight: 850; font-variant-numeric: tabular-nums; }
.card-action { margin-top: auto; display: flex; align-items: stretch; justify-content: flex-end; gap: 8px; padding-top: 12px; }
.card-action .card-link { width: 50%; }
.card-action .card-btn-secondary { flex: 0 0 auto; min-height: 38px; padding: 8px 14px; border: 1px solid rgba(245, 158, 11, .55); border-radius: 10px; background: transparent; color: var(--accent); font-size: 13px; font-weight: 800; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px; transition: all .18s var(--ease-out); white-space: nowrap; }
.card-action .card-btn-secondary:hover { background: rgba(245, 158, 11, .12); border-color: var(--accent); }
.card-footer { display: flex; align-items: center; gap: 8px; padding-top: 10px; }
.card-region { display: inline-flex; align-items: center; gap: 5px; border: 1px solid rgba(245, 158, 11, .38); border-radius: 999px; padding: 3px 9px; color: var(--accent); background: rgba(245, 158, 11, .08); font-size: 11px; font-weight: 800; white-space: nowrap; flex: none; }
.card-region::before { content: "◈"; font-size: 9px; opacity: .85; }
.card-link { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 38px; padding: 8px 14px; border: 1px solid var(--accent); border-radius: 10px; background: var(--accent); color: var(--accent-ink); font-size: 13px; font-weight: 800; text-decoration: none; transition: all .18s var(--ease-out); }
.card-link:hover { background: #ffb84d; border-color: #ffb84d; }
.card-link svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; transition: transform .18s var(--ease-out); }
.card-link:hover svg { transform: translateX(2px); }
.card-date { color: var(--faint); font-size: 11px; white-space: nowrap; }
.card-corner-badge { position: absolute; top: 14px; right: 14px; z-index: 3; padding: 4px 10px; border-radius: 8px; background: linear-gradient(135deg, #6366f1, #a855f7); color: #fff; font-size: 12px; font-weight: 800; letter-spacing: .5px; box-shadow: 0 4px 12px rgba(139, 92, 246, .4); }

/* 空态 */
.empty-state { padding: 40px 0; color: var(--muted); text-align: center; }

/* ========== 观望名单（行式长条矩形） ========== */
.watchlist-panel { padding: 58px 0 68px; }
.watchout-rows { display: flex; flex-direction: column; gap: 10px; margin-top: 26px; }
.row-watchout {
  display: grid;
  grid-template-columns: auto 1fr auto auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(18, 22, 31, .5);
  transition: all .18s var(--ease-out);
}
.row-watchout:hover { border-color: rgba(245, 158, 11, .3); background: var(--surface-raised); transform: translateX(3px); }
.row-watchout-num { width: 24px; height: 24px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 800; color: var(--faint); background: rgba(124, 135, 152, .14); }
.row-watchout-name { margin: 0; font-size: 15px; font-weight: 700; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.row-watchout-tag { display: inline-flex; align-items: center; justify-content: center; width: 44px; box-sizing: border-box; border: 1px solid color-mix(in srgb, var(--muted) 42%, var(--line)); border-radius: 999px; padding: 3px 0; color: var(--faint); font-size: 11px; font-weight: 800; letter-spacing: .02em; white-space: nowrap; }
.row-watchout-region { display: inline-flex; align-items: center; justify-content: center; flex: none; box-sizing: border-box; border: 1px solid rgba(245, 158, 11, .38); border-radius: 999px; padding: 3px 9px; color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .02em; white-space: nowrap; }
.row-watchout-region.is-empty { visibility: hidden; }
.row-watchout-why { margin: 0; color: var(--faint); font-size: 13px; line-height: 1.5; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.row-watchout-action { flex: none; display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line); color: var(--muted); font-size: 12px; font-weight: 700; text-decoration: none; background: transparent; transition: border-color .18s ease, background .18s ease, color .18s ease, transform .18s ease; }
.row-watchout-action svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.row-watchout-action:hover { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); transform: translateY(-1px); }

/* 关于 / 投稿 */
.about { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(36px, 8vw, 140px); padding: 82px 0; border-top: 1px solid var(--line); }
.about-copy { max-width: 37rem; color: var(--muted); font-size: 17px; }
.about-copy p { margin: 0 0 18px; }
.about-copy p:last-child { color: var(--faint); font-size: 14px; }
.about-groups { list-style: none; padding: 0; margin: 16px 0 22px; display: grid; gap: 10px; }
.about-groups li { display: flex; align-items: flex-start; gap: 14px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-raised); font-size: 15px; color: var(--ink); }
.about-group-no { width: 28px; height: 28px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; font-variant-numeric: tabular-nums; flex-shrink: 0; }
.about-group-body { display: flex; flex-direction: column; justify-content: center; gap: 3px; min-width: 0; }
.about-group-name { display: inline-flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 15px; font-weight: 700; }
.about-group-desc { font-size: 13px; line-height: 1.45; color: color-mix(in srgb, var(--ink) 68%, var(--line)); }
.about-group-tag { display: inline-flex; align-items: center; padding: 2px 9px; border-radius: 999px; font-size: 11px; font-weight: 800; letter-spacing: .05em; vertical-align: middle; }
.about-group-tag.free { background: var(--accent-soft); color: var(--accent); border: 1px solid rgba(245, 158, 11, .55); }
.about-group-note { display: flex; align-items: center; gap: 8px; margin: 4px 0 12px; font-size: 13px; color: color-mix(in srgb, var(--ink) 78%, var(--line)); }
.about-wechat-row { display: flex; flex-wrap: wrap; gap: 12px; }
.about-wechat-btn { appearance: none; display: inline-flex; align-items: center; gap: 9px; min-height: 44px; padding: 10px 18px; border: 1px solid var(--accent); border-radius: 999px; background: transparent; color: var(--accent); font-size: 14px; font-weight: 700; cursor: pointer; transition: background .18s var(--ease-out), color .18s var(--ease-out), border-color .18s var(--ease-out), transform .18s var(--ease-out); }
.about-wechat-btn:hover { background: var(--accent-soft); }
.about-wechat-btn:active { transform: scale(.98); }
.about-wechat-btn svg { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }
.about-wechat-id { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-weight: 500; letter-spacing: .01em; }
.about-wechat-btn.is-copied { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.submit { border-top: 1px solid var(--line); background: transparent; }
.submit-inner { display: grid; grid-template-columns: minmax(0, .8fr) minmax(360px, 1.2fr); align-items: center; gap: clamp(48px, 9vw, 150px); padding: 72px 0; }
.submit-action-block { width: min(100%, 38rem); }
.submit-action-block > p { margin: 0; color: var(--muted); }
.submit-actions { display: flex; align-items: center; gap: 14px; margin-top: 27px; }
.wechat-trigger { min-height: 44px; border: 1px solid var(--line); border-radius: 10px; background: transparent; color: var(--ink); padding: 10px 16px; font-size: 14px; font-weight: 750; cursor: pointer; transition: background .18s var(--ease-out), border-color .18s var(--ease-out), transform .18s var(--ease-out); }
.wechat-trigger:hover { background: var(--surface-raised); border-color: var(--muted); }
.qrcode-box { width: min(280px, 100%); margin-top: 22px; padding: 22px; background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 18px 40px rgba(0, 0, 0, .22); text-align: center; }
.qrcode-box[hidden] { display: none; }
.qrcode-box img { display: block; width: 100%; height: auto; border-radius: 6px; }
.qrcode-box p { margin: 14px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }

/* 海报弹窗（项目卡） */
.poster-overlay { display: none; position: fixed; inset: 0; z-index: 999; align-items: center; justify-content: center; padding: 20px; }
.poster-overlay.is-open .poster-backdrop { opacity: 1; }
.poster-overlay.is-open .poster-dialog { transform: scale(1); opacity: 1; }
.poster-backdrop { position: absolute; inset: 0; background: rgba(0, 0, 0, .72); opacity: 0; transition: opacity .25s ease; backdrop-filter: blur(6px); }
.poster-dialog { position: relative; max-width: min(520px, 92vw); max-height: 90vh; display: flex; flex-direction: column; align-items: center; gap: 14px; border-radius: var(--radius); background: var(--surface-raised); box-shadow: 0 32px 64px rgba(0, 0, 0, .4); transform: scale(.94); opacity: 0; transition: transform .3s cubic-bezier(.16, 1, .3, 1), opacity .25s ease; overflow: hidden; }
.poster-close { position: absolute; top: 10px; right: 10px; z-index: 2; width: 36px; height: 36px; border: none; border-radius: 50%; background: rgba(0, 0, 0, .45); color: #fff; cursor: pointer; display: grid; place-items: center; transition: background .18s ease; }
.poster-close:hover { background: rgba(0, 0, 0, .7); }
.poster-close svg { width: 18px; height: 18px; }
.poster-img { width: 100%; height: auto; max-height: 78vh; object-fit: contain; border-radius: 6px; display: block; }
.poster-tip { margin: 0 0 16px; color: var(--muted); font-size: 13px; text-align: center; }

.site-footer { border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; padding: 30px 0; color: var(--faint); font-size: 13px; }
.footer-inner div { display: grid; gap: 3px; }
.footer-inner strong { color: var(--ink); font-size: 14px; }
.back-to-top { position: fixed; right: 22px; bottom: 22px; z-index: 10; display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 50%; background: var(--surface-raised); color: var(--ink); cursor: pointer; opacity: 0; transform: translateY(8px); pointer-events: none; transition: opacity .18s var(--ease-out), transform .18s var(--ease-out), background .18s var(--ease-out); }
.back-to-top svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.back-to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

@media (prefers-color-scheme: light) {
  :root { --canvas: #f7f5f0; --surface: #fff; --surface-raised: #ffffff; --ink: #211b12; --muted: #5a5245; --faint: #8a8172; --line: #e5ddcf; --accent: #c2760a; --accent-ink: #fff7ea; --accent-soft: rgba(194, 118, 10, .1); }
  .site-header { background: rgba(247, 245, 240, .92); }
  body { background: radial-gradient(circle at 88% -6%, rgba(245, 158, 11, .1), transparent 30rem), var(--canvas); }
  .btn-primary { color: var(--accent-ink); }
  .btn-primary:hover { background: #d98a12; }
  .card-link:hover { background: #d98a12; border-color: #d98a12; }
  .card { background: rgba(255, 255, 255, .78); box-shadow: 0 16px 36px rgba(120, 90, 20, .08); }
  .card:hover { background: #fff; box-shadow: 0 22px 48px rgba(120, 90, 20, .12); }
  .card.tone-orange, .card.tone-yellow, .card.tone-green, .card.tone-bluepurple { background: var(--accent-soft); }
  .row-watchout { background: rgba(255, 255, 255, .6); }
  .watchlist { background: linear-gradient(150deg, rgba(255, 255, 255, .94), rgba(255, 251, 243, .8)); box-shadow: 0 24px 56px rgba(120, 90, 20, .1); }
  .hero-stat { background: rgba(255, 255, 255, .7); }
  .qrcode-box, .about-groups li { background: #fff; }
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 54px; }
  .watchlist { max-width: 610px; }
  .about, .submit-inner { grid-template-columns: 1fr; }
}

@media (max-width: 980px) and (min-width: 621px) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .wrap { width: min(var(--max), calc(100% - 36px)); }
  .header-inner { min-height: 60px; }
  .site-nav { gap: 12px; }
  .site-nav a:not(.nav-cta):not(.nav-star) { display: none; }
  .site-nav .nav-star { font-size: 0; }
  .site-nav .nav-star span { font-size: 15px; margin: 0; }
  .hero { padding: 54px 0 60px; }
  .hero h1 { font-size: clamp(42px, 13vw, 58px); }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 40px; }
  .model-list { grid-template-columns: 1fr; }
  .watchlist { padding-left: 20px; }
  .intelligence { padding: 58px 0 68px; }
  .filters { overflow-x: auto; padding-bottom: 3px; }
  .chip { flex: none; }
  .cards { grid-template-columns: 1fr; gap: 14px; }
  .card { padding: 20px; }
  .row-watchout { grid-template-columns: 1fr auto; gap: 8px; }
  .row-watchout-num, .row-watchout-region { display: none; }
  .row-watchout-name { font-size: 14px; }
  .row-watchout-why { font-size: 12px; }
  .about { grid-template-columns: 1fr; gap: 28px; padding: 62px 0; }
  .submit-inner { padding: 58px 0; gap: 32px; }
  .submit-actions { align-items: stretch; flex-direction: column; }
  .submit-actions > * { width: 100%; }
  .footer-inner { flex-direction: column; }
  .share-bar-text { font-size: 12px; }
  .share-bar-actions { gap: 6px; }
  .share-bar-btn { padding: 7px 12px; font-size: 12px; }
  .back-to-top { right: 16px; bottom: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}