/* ============================================================
 * 个人主页样式 — 深色极简（参考 Vercel 首页风格）
 * ============================================================ */

:root {
  color-scheme: dark;
  --bg: #0a0a0a;
  --bg-elev: #111111;
  --bg-elev-2: #161616;
  --fg: #ededed;
  --fg-muted: #888888;
  --fg-dim: #555555;
  --border: #222222;
  --border-strong: #333333;
  --accent: #ffffff;
  --hero-title-from: #ffffff;
  --hero-title-to: #aaaaaa;
  --product-bg-start: #0d0d0d;
  --product-bg-end: var(--bg);
  --product-bg-hover-start: #101010;
  --row-bg: #151515;
  --row-bg-hover: #181818;
  --row-border-hover: #2c2c2c;
  --icon-box-bg: #101010;
  --download-size: rgba(10, 10, 10, 0.64);
  --toggle-shadow: none;
  --radius: 12px;
  --radius-sm: 6px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC",
               "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f7fb;
  --bg-elev: #ffffff;
  --bg-elev-2: #eef2f7;
  --fg: #111827;
  --fg-muted: #64748b;
  --fg-dim: #94a3b8;
  --border: #dbe3ee;
  --border-strong: #b9c6d8;
  --accent: #111827;
  --hero-title-from: #111827;
  --hero-title-to: #64748b;
  --product-bg-start: #ffffff;
  --product-bg-end: #f8fafc;
  --product-bg-hover-start: #ffffff;
  --row-bg: #f8fafc;
  --row-bg-hover: #f1f5f9;
  --row-border-hover: #cbd5e1;
  --icon-box-bg: #ffffff;
  --download-size: rgba(248, 250, 252, 0.72);
  --toggle-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.18s ease, color 0.18s ease;
}

a {
  color: var(--fg);
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}
a:hover { opacity: 0.7; }

code, pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
}
code {
  background-color: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ----- 顶部导航 ----- */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.nav .brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600; letter-spacing: -0.01em;
}
.nav .brand img { width: 28px; height: 28px; }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav .links { display: flex; gap: 24px; font-size: 14px; color: var(--fg-muted); }
.nav .links a:hover { color: var(--fg); opacity: 1; }
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background-color: var(--bg-elev);
  color: var(--fg-muted);
  box-shadow: var(--toggle-shadow);
  cursor: pointer;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.theme-toggle:hover {
  color: var(--fg);
  background-color: var(--bg-elev-2);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 3px;
}
.theme-icon {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.theme-icon.moon { display: none; }
[data-theme="light"] .theme-icon.sun { display: none; }
[data-theme="light"] .theme-icon.moon { display: block; }

/* ----- Hero ----- */
.hero {
  padding: 96px 0 64px;
}
.hero h1 {
  font-size: 56px;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 0 0 24px;
  font-weight: 700;
  background: linear-gradient(180deg, var(--hero-title-from) 0%, var(--hero-title-to) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero .tagline {
  font-size: 20px;
  color: var(--fg-muted);
  max-width: 100%;
  margin: 0 0 24px;
}
.hero .bio {
  font-size: 15px;
  color: var(--fg-dim);
  max-width: 100%;
  margin: 0;
}
.hero-cover {
  margin-top: 48px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background-color: var(--bg-elev);
}
.hero-cover img {
  display: block;
  width: 100%;
  height: auto;
}

/* ----- 区块 ----- */
.section { padding: 64px 0; }
.section + .section { border-top: 1px solid var(--border); }
.section-title {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 32px;
}
.section-title h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  margin: 0;
  font-weight: 500;
}
.section-title .count {
  font-size: 13px;
  color: var(--fg-dim);
  font-family: var(--font-mono);
}

/* ----- 引擎卡片 ----- */
.engine {
  background-color: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
}
.engine-head {
  display: flex; gap: 20px; align-items: flex-start;
  margin-bottom: 28px;
}
.engine-head .icon {
  width: 64px; height: 64px;
  border-radius: 14px;
  background-color: var(--bg-elev-2);
  border: 1px solid var(--border);
  padding: 8px;
  flex-shrink: 0;
}
.engine-head h3 {
  font-size: 24px;
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}
.engine-head .sub {
  color: var(--fg-muted);
  font-size: 14px;
  margin: 0 0 12px;
}
.engine-head .desc {
  color: var(--fg-muted);
  font-size: 14px;
  max-width: 720px;
  margin: 0;
}
.engine-actions {
  display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px;
}

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  background-color: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--fg);
  transition: all 0.15s ease;
}
.btn:hover {
  background-color: var(--bg);
  border-color: var(--fg-muted);
  opacity: 1;
}
.btn.primary {
  background-color: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}
.btn.primary:hover {
  background-color: var(--fg-muted);
  border-color: var(--fg-muted);
}

/* 安装命令块 */
.install-cmd {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  margin-top: 8px;
}
.install-cmd code { background: transparent; border: none; padding: 0; flex: 1; }
.install-cmd .copy {
  font-size: 11px;
  color: var(--fg-dim);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.install-cmd .copy:hover { color: var(--fg); background-color: var(--bg-elev-2); }

/* 引擎特性网格 */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 24px 0;
}
.feature {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
}
.feature .t { font-weight: 500; margin-bottom: 4px; font-size: 14px; }
.feature .d { color: var(--fg-muted); font-size: 13px; }

/* ----- 产品网格（在引擎下） ----- */
.products-sub {
  margin-top: 8px;
  padding-top: 24px;
  border-top: 1px dashed var(--border);
}
.products-sub .label {
  font-size: 12px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  align-items: stretch;
}
.product {
  background: linear-gradient(180deg, var(--product-bg-start) 0%, var(--product-bg-end) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
  overflow: hidden;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}
.product:hover {
  border-color: var(--border-strong);
  background: linear-gradient(180deg, var(--product-bg-hover-start) 0%, var(--product-bg-end) 100%);
}
.product::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 4px;
  background: var(--accent-bar, var(--fg-dim));
  border-radius: 0 999px 999px 0;
}
.product .head {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.product .head img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}
.product .head h4 {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.01em;
  min-width: 0;
}
.product .head .repo {
  font-size: 11px;
  color: var(--fg-dim);
  font-family: var(--font-mono);
  max-width: 138px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.product .tagline {
  min-height: 42px;
  font-size: 13px;
  color: var(--fg-muted);
  margin: 0 0 16px;
}

.version-tabs {
  display: flex;
  gap: 18px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.version-tabs .tab {
  padding: 7px 0 9px;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}
.version-tabs .tab.active {
  color: var(--fg);
  border-bottom-color: var(--fg);
}
.version-tabs .tab:hover { color: var(--fg); }

.version-bodies {
  flex: 1;
}

.dl-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.release-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 22px;
  font-size: 12px;
  color: var(--fg-dim);
}
.release-meta code {
  color: var(--fg-muted);
}
.dl-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 66px;
  padding: 12px;
  background-color: var(--row-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.dl-row:hover {
  background-color: var(--row-bg-hover);
  border-color: var(--row-border-hover);
}
.dl-row .plat {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.plat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background-color: var(--icon-box-bg);
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.plat-icon img,
.plat-icon svg {
  display: block;
  width: 24px;
  height: 24px;
  object-fit: contain;
}
.plat-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.plat-name {
  color: var(--fg);
  font-weight: 500;
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.plat-detail {
  color: var(--fg-dim);
  font-size: 11px;
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.download-btn {
  justify-content: center;
  gap: 0;
  width: 108px;
  min-width: 108px;
  height: 36px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.download-size {
  color: var(--download-size);
  font-weight: 500;
}
.download-size::before {
  content: "·";
  margin: 0 5px;
}
.dl-row .disabled {
  justify-self: end;
  min-width: 86px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background-color: var(--bg);
  text-align: center;
  font-size: 12px;
  color: var(--fg-dim);
}
.dl-row.unavailable {
  opacity: 0.72;
}
.preview-note {
  font-size: 12px;
  color: var(--fg-dim);
}

.repo-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  color: var(--fg-dim);
  font-family: var(--font-mono);
}
.repo-link:hover { color: var(--fg); }
.release-link {
  margin-top: 8px;
  align-self: flex-start;
}
.product > .repo-link {
  margin-top: 14px;
}

html[data-theme] body {
  background-color: var(--bg);
  color: var(--fg);
}
html[data-theme] code,
html[data-theme] .engine-head .icon {
  background-color: var(--bg-elev-2);
}
html[data-theme] .theme-toggle,
html[data-theme] .hero-cover,
html[data-theme] .engine {
  background-color: var(--bg-elev);
}
html[data-theme] .theme-toggle:hover {
  background-color: var(--bg-elev-2);
}
html[data-theme] .btn {
  background-color: var(--bg-elev-2);
}
html[data-theme] .btn:hover,
html[data-theme] .install-cmd,
html[data-theme] .feature,
html[data-theme] .dl-row .disabled {
  background-color: var(--bg);
}
html[data-theme] .btn.primary {
  background-color: var(--fg);
}
html[data-theme] .btn.primary:hover {
  background-color: var(--fg-muted);
}
html[data-theme] .install-cmd .copy:hover {
  background-color: var(--bg-elev-2);
}
html[data-theme] .product {
  background: linear-gradient(180deg, var(--product-bg-start) 0%, var(--product-bg-end) 100%);
}
html[data-theme] .product:hover {
  background: linear-gradient(180deg, var(--product-bg-hover-start) 0%, var(--product-bg-end) 100%);
}
html[data-theme] .dl-row {
  background-color: var(--row-bg);
}
html[data-theme] .dl-row:hover {
  background-color: var(--row-bg-hover);
}
html[data-theme] .plat-icon {
  background-color: var(--icon-box-bg);
}


/* ----- Footer ----- */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  margin-top: 64px;
  color: var(--fg-dim);
  font-size: 13px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
.footer .links { display: flex; gap: 20px; }

/* ----- 响应式 ----- */
@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .hero { padding: 64px 0 40px; }
  .hero h1 { font-size: 40px; }
  .engine { padding: 22px; }
  .engine-head { flex-direction: column; }
  .nav-actions { gap: 12px; }
  .nav .links { gap: 16px; font-size: 13px; }
  .theme-toggle { width: 32px; height: 32px; }
  .products-grid { grid-template-columns: 1fr; }
  .product { padding: 18px; }
  .product .head {
    grid-template-columns: 40px minmax(0, 1fr);
  }
  .product .head .repo {
    grid-column: 2;
    max-width: 100%;
  }
  .product .tagline { min-height: 0; }
  .dl-row {
    grid-template-columns: 1fr;
    justify-items: stretch;
    gap: 12px;
  }
  .download-btn {
    width: 100%;
  }
  .dl-row .disabled {
    justify-self: stretch;
  }
}