/* 开源平替 · 改版草案
   深墨蓝 × 活力橙：墨蓝给品牌分量，橙色对应星标猛涨的热度。
   正文区保持浅色，阅读优先。 */

:root {
  --ink-950: #0a0f1e;
  --ink-900: #0e1730;
  --ink-800: #16223f;
  --ink: #141b2c;
  --muted: #5b6577;
  --faint: #8a94a6;
  --line: #e5e8ef;
  --bg: #f6f7f9;
  --card: #ffffff;
  --accent: #ff5a1f;
  --accent-deep: #d9480f;
  --accent-soft: #fff1e8;
  --gold: #e79a13;
  --green: #0e9f6e;
  --green-soft: #e7f7f0;
  --red: #dc4a3a;
  --red-soft: #fdeeea;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(14, 23, 48, 0.05), 0 10px 30px -12px rgba(14, 23, 48, 0.14);
  --shadow-lift: 0 2px 4px rgba(14, 23, 48, 0.06), 0 18px 40px -14px rgba(14, 23, 48, 0.22);
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
    "Noto Sans CJK SC", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: #fff; }
a { color: var(--accent-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ————— 顶栏（深色，与 hero 衔接） ————— */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(10, 15, 30, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.topbar .wrap { display: flex; align-items: center; gap: 22px; height: 64px; }
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 18px; font-weight: 800; color: #fff;
  letter-spacing: 0.04em; white-space: nowrap;
}
.logo:hover { text-decoration: none; }
.logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, #ff7a3d, var(--accent));
  color: #fff; font-size: 16px; font-weight: 900; line-height: 1;
  box-shadow: 0 4px 14px -2px rgba(255, 90, 31, 0.55);
}
.nav { display: flex; gap: 20px; font-size: 14px; }
.nav a { color: #a7b0c2; }
.nav a:hover, .nav a[aria-current="page"] { color: #fff; text-decoration: none; }

.search { margin-left: auto; position: relative; width: 300px; }
.search input {
  width: 100%; height: 40px; padding: 0 38px 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.16); border-radius: 999px;
  background: rgba(255, 255, 255, 0.07); font-size: 14px; color: #fff; outline: none;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.search input::placeholder { color: #7e879c; }
.search input:focus {
  border-color: var(--accent); background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(255, 90, 31, 0.25);
}
.search kbd {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-size: 11px; color: #a7b0c2; border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 5px; padding: 1px 6px; background: rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

/* ————— 首屏 hero（深墨蓝） ————— */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(560px 320px at 88% -60px, rgba(255, 90, 31, 0.28), rgba(255, 90, 31, 0) 70%),
    radial-gradient(700px 420px at -120px 110%, rgba(46, 92, 214, 0.35), rgba(46, 92, 214, 0) 70%),
    linear-gradient(160deg, var(--ink-900) 0%, var(--ink-950) 78%);
  color: #fff;
  padding: 72px 0 0;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
}
.hero .wrap { position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.14em;
  color: #ffb894; border: 1px solid rgba(255, 122, 61, 0.45);
  background: rgba(255, 90, 31, 0.12);
  padding: 6px 12px; border-radius: 999px; margin-bottom: 22px;
}
.eyebrow::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 10px 2px rgba(255, 90, 31, 0.7);
}
.hero h1 {
  margin: 0 0 16px; font-size: clamp(38px, 5.6vw, 62px);
  line-height: 1.14; letter-spacing: -0.01em; font-weight: 900; max-width: 860px;
}
.hero h1 .hl { color: var(--accent); }
.hero p { margin: 0; font-size: 17px; line-height: 1.75; color: #b9c2d4; max-width: 700px; }
.hero p strong { color: #fff; font-weight: 700; }

.stats {
  display: flex; flex-wrap: wrap; margin-top: 46px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.stat { padding: 22px 36px 28px 0; margin-right: 36px; }
.stat + .stat { border-left: 1px solid rgba(255, 255, 255, 0.1); padding-left: 36px; }
.stat b {
  display: block; font-size: 34px; line-height: 1.05; font-weight: 800;
  letter-spacing: -0.01em; font-variant-numeric: tabular-nums;
}
.stat span { font-size: 13px; color: #8a94a6; letter-spacing: 0.06em; }

/* ————— 列表头与工具条 ————— */
.list-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; padding: 38px 0 6px; }
.list-head h2 { margin: 0; font-size: 26px; font-weight: 800; letter-spacing: -0.01em; }
.list-head span { font-size: 13px; color: var(--faint); }
.toolbar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 12px 0 22px; margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line); background: var(--card); color: var(--muted);
  border-radius: 999px; padding: 7px 15px; font-size: 13.5px;
  cursor: pointer; font-family: inherit;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.chip:hover { border-color: var(--ink-900); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink-950); border-color: var(--ink-950); color: #fff; }
.count { margin-left: auto; font-size: 13px; color: var(--faint); font-variant-numeric: tabular-nums; }

/* ————— 卡片瀑布流 —————
   默认 CSS 多列兜底（纵向填充）；app.js 启用 JS 分列后按横向顺序排，
   见下方 .js-masonry。过滤靠给 .card 设 hidden：隐藏卡不占列位。 */
.grid {
  columns: 3; column-gap: 22px;
  padding-bottom: 48px;
}
.card {
  break-inside: avoid; -webkit-column-break-inside: avoid;
  display: flex; flex-direction: column; gap: 11px;
  width: 100%; margin: 0 0 22px;
  padding: 22px 22px 18px; background: var(--card);
  border: 1px solid var(--line); border-top: 3px solid var(--ink-900);
  border-radius: var(--radius); box-shadow: var(--shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.card:has(.badge.new) { border-top-color: var(--accent); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.card[hidden] { display: none; }

/* ————— JS 分列模式（app.js 给 #grid 加 .js-masonry 后生效） —————
   无 JS 时仍用上面的 CSS 多列兜底。 */
.grid.js-masonry { columns: auto; display: flex; gap: 22px; align-items: flex-start; }
.masonry-col { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 22px; }
.grid.js-masonry .card { margin: 0; }
.empty { margin-bottom: 48px; }

.card-head { display: flex; align-items: flex-start; gap: 12px; }
.rank {
  font-size: 26px; font-weight: 800; line-height: 1.1;
  color: #ccd3df; font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
}
.card-name { min-width: 0; }
.card h2 { margin: 0; font-size: 21px; line-height: 1.3; font-weight: 800; }
.card h2 a { color: var(--ink); }
.card h2 a:hover { text-decoration: none; color: var(--accent-deep); }
.repo {
  display: block; margin-top: 2px; font-size: 12.5px; color: var(--faint);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.score {
  margin-left: auto; text-align: right; flex-shrink: 0;
  display: flex; flex-direction: column; align-items: flex-end; gap: 6px;
}
.stars {
  font-size: 20px; font-weight: 800; line-height: 1.1;
  font-variant-numeric: tabular-nums; letter-spacing: -0.01em;
}
.stars::before { content: "★ "; color: var(--gold); }

.badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
  font-size: 12px; line-height: 1; padding: 6px 9px; border-radius: 7px;
  background: #eef1f6; color: var(--muted); white-space: nowrap; font-weight: 600;
}
.badge.up { background: var(--accent-soft); color: var(--accent-deep); font-variant-numeric: tabular-nums; }
.badge.ever { background: #eef1f6; color: var(--muted); }
.badge.replace { background: var(--ink-950); color: #fff; }
.badge.new { background: var(--accent); color: #fff; }
.badge.auto { background: #f0ebff; color: #6d28d9; }

.card p { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.7; }
.card .verdict {
  color: var(--ink); font-size: 14px; line-height: 1.7;
  background: var(--accent-soft); border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0; padding: 10px 12px;
}
.card-foot {
  display: flex; align-items: center; gap: 12px; margin-top: auto;
  padding-top: 12px; border-top: 1px dashed var(--line);
  font-size: 12.5px; color: var(--faint);
}
.card-foot .cat { color: var(--muted); font-weight: 600; }
.card-foot .go { margin-left: auto; color: var(--accent-deep); font-weight: 700; font-size: 13.5px; }
.card-foot .go:hover { text-decoration: none; color: var(--accent); }

.empty {
  column-span: all;
  text-align: center; padding: 60px 20px;
  color: var(--muted); background: var(--card); border: 1px dashed var(--line);
  border-radius: var(--radius);
}
.callout {
  background: #f0ebff; color: #4c1d95; border-radius: 12px;
  padding: 12px 16px; font-size: 14px; margin: 0 0 18px;
}

/* ————— 详情页 ————— */
.article { max-width: 780px; margin: 0 auto; padding: 44px 24px 68px; }
.crumb { font-size: 13px; color: var(--faint); margin-bottom: 20px; }
.crumb a { color: var(--muted); }
.article h1 {
  margin: 0 0 12px; font-size: clamp(30px, 4.4vw, 44px);
  line-height: 1.18; font-weight: 900; letter-spacing: -0.01em;
}
.article .lead { font-size: 18.5px; line-height: 1.75; color: var(--muted); margin: 0 0 22px; }
.meta {
  display: flex; gap: 8px; flex-wrap: wrap; padding: 16px 0 22px;
  border-bottom: 1px solid var(--line); margin-bottom: 28px;
}
.meta span {
  font-size: 13px; color: var(--muted); background: var(--card);
  border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px;
}
.verdict-box {
  background: linear-gradient(150deg, var(--ink-900), var(--ink-950));
  border-radius: 14px; padding: 20px 22px; margin: 0 0 30px;
  font-size: 17px; line-height: 1.75; color: #fff; font-weight: 600;
  box-shadow: var(--shadow);
}
.verdict-label {
  display: block; font-size: 12px; font-weight: 700;
  letter-spacing: 0.16em; color: var(--accent); margin-bottom: 8px;
}
.article h2 {
  margin: 34px 0 12px; font-size: 21px; font-weight: 800;
  display: flex; align-items: center; gap: 10px;
}
.article h2::before {
  content: ""; width: 8px; height: 8px; border-radius: 2px;
  background: var(--accent); flex-shrink: 0;
}
.article p { margin: 0 0 15px; font-size: 16.5px; line-height: 1.85; }
.article > ul {
  list-style: none; margin: 0 0 8px; padding: 0;
  display: flex; flex-wrap: wrap; gap: 8px;
}
.article > ul li {
  background: var(--ink-950); color: #fff; font-size: 14px; font-weight: 600;
  border-radius: 999px; padding: 7px 14px;
}
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0 28px; }
.col {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 18px 20px; box-shadow: var(--shadow);
}
.col h3 { margin: 0 0 10px; font-size: 15px; font-weight: 800; }
.col.good h3 { color: var(--green); }
.col.bad h3 { color: var(--red); }
.col ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 14.5px; line-height: 1.75; }
.col li { margin: 5px 0; }
.links {
  display: grid; gap: 10px; background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 16px; margin-top: 14px; box-shadow: var(--shadow);
}
.links a {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 10px; background: var(--bg);
  font-size: 14.5px; font-weight: 700; color: var(--ink);
  transition: background 0.15s ease;
}
.links a:hover { background: var(--accent-soft); text-decoration: none; }
.links a span { color: var(--faint); font-weight: 400; font-size: 13px; }

/* ————— 页脚（深色收尾） ————— */
footer {
  background: var(--ink-950); color: #8a94a6;
  padding: 34px 0; font-size: 13px; margin-top: 12px;
}
footer .wrap { display: flex; gap: 16px 22px; flex-wrap: wrap; align-items: center; }
footer .logo { font-size: 16px; }
.foot-note { max-width: 460px; line-height: 1.7; }
.foot-links { margin-left: auto; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
footer a { color: #c3cad8; }
footer a:hover { color: #fff; }

/* ————— 响应式 ————— */
@media (max-width: 1100px) {
  .grid { columns: 2; }
}

@media (max-width: 860px) {
  .topbar .wrap { height: auto; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
  .search { width: 100%; margin-left: 0; order: 3; }
  .nav { order: 2; }
  .hero { padding-top: 48px; }
  .stat { padding: 18px 22px 22px 0; margin-right: 22px; }
  .stat + .stat { padding-left: 22px; }
  .stat b { font-size: 27px; }
  .grid { columns: 1; }
  .cols { grid-template-columns: 1fr; }
  .foot-links { margin-left: 0; }
}

@media (max-width: 560px) {
  .hero h1 { font-size: 34px; }
  .stats { display: grid; grid-template-columns: 1fr 1fr; }
  .stat { border-left: none; padding-left: 0; margin-right: 0; }
  .stat + .stat { border-left: none; padding-left: 0; }
  .card-head { flex-wrap: wrap; }
  .score { margin-left: 0; flex-direction: row; align-items: center; width: 100%; }
  .count { margin-left: 0; width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card { transition: none; }
  .card:hover { transform: none; }
}