/* ==========================================================================
   VOZO · AI 工具导航 — 全站样式（手写，无框架，约 14KB）
   ========================================================================== */

:root {
  --bg: #06080e;
  --bg-soft: #0a0e17;
  --card: rgba(255, 255, 255, .028);
  --card-hover: rgba(255, 255, 255, .055);
  --line: rgba(255, 255, 255, .085);
  --line-strong: rgba(255, 255, 255, .16);
  --fg: #e9eefb;
  --fg-dim: #aab4c8;
  --muted: #7b879e;
  --brand: #4f8cff;
  --brand-2: #22d3ee;
  --accent: #a855f7;
  --ok: #34d399;
  --no: #fb923c;
  --grad: linear-gradient(120deg, #4f8cff, #a855f7 52%, #22d3ee);
  --shadow: 0 12px 34px rgba(0, 0, 0, .38);
  --radius: 16px;
  --radius-sm: 11px;
  --maxw: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

html[data-theme="light"] {
  --bg: #f6f8fd;
  --bg-soft: #ffffff;
  --card: rgba(15, 23, 42, .022);
  --card-hover: rgba(15, 23, 42, .05);
  --line: rgba(15, 23, 42, .1);
  --line-strong: rgba(15, 23, 42, .2);
  --fg: #0f172a;
  --fg-dim: #46536e;
  --muted: #6b7891;
  --shadow: 0 10px 26px rgba(15, 23, 42, .09);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  font-size: 15.5px;
  line-height: 1.7;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 背景光晕 + 网格（纯 CSS，无图片） */
body::before,
body::after { content: ""; position: fixed; z-index: -1; pointer-events: none; }

body::before {
  inset: -20% -10% auto -10%;
  height: 70vh;
  background:
    radial-gradient(48% 60% at 18% 12%, rgba(79, 140, 255, .22), transparent 62%),
    radial-gradient(42% 56% at 82% 6%, rgba(168, 85, 247, .18), transparent 60%),
    radial-gradient(40% 50% at 55% 0%, rgba(34, 211, 238, .13), transparent 62%);
  filter: blur(6px);
}

body::after {
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .028) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
}

html[data-theme="light"] body::after { opacity: .5; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; border-radius: 10px; }
::selection { background: rgba(79, 140, 255, .34); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------------------------------------------------------------- 顶部导航 */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in srgb, var(--bg) 76%, transparent);
  border-bottom: 1px solid var(--line);
}
html[data-theme="light"] .nav { background: rgba(255, 255, 255, .78); }

.nav-in { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }

.brand { display: flex; align-items: center; gap: 9px; font-size: 15px; }
.brand b { font-weight: 700; letter-spacing: .04em; }
.brand > span:last-child { color: var(--muted); font-size: 12.5px; padding-left: 9px; border-left: 1px solid var(--line); }

.brand-mark {
  display: grid; place-items: center;
  width: 27px; height: 27px; border-radius: 9px;
  background: var(--grad); color: #fff;
  font-weight: 800; font-size: 14px; line-height: 1;
  box-shadow: 0 4px 14px rgba(79, 140, 255, .36);
}

.nav-links { display: flex; align-items: center; gap: 4px; font-size: 14px; }
.nav-links a { padding: 7px 12px; border-radius: 9px; color: var(--fg-dim); transition: .18s; }
.nav-links a:hover { color: var(--fg); background: var(--card-hover); }
.nav-links a.on { color: var(--fg); background: var(--card); border: 1px solid var(--line); }

.icon-btn {
  width: 32px; height: 32px; margin-left: 6px;
  display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 9px;
  background: var(--card); color: var(--fg-dim);
  font-size: 14px; cursor: pointer; transition: .18s;
}
.icon-btn:hover { color: var(--fg); border-color: var(--line-strong); }

/* ---------------------------------------------------------------- Hero */
.hero { padding: 74px 20px 30px; text-align: center; }

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 13px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card);
  color: var(--fg-dim); font-size: 12.5px;
}
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 0 4px rgba(52, 211, 153, .16);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); } }

.hero h1 {
  margin: 20px 0 0; font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.22; letter-spacing: -.02em; font-weight: 800;
}
.lead { margin: 16px auto 0; max-width: 660px; color: var(--fg-dim); font-size: 15px; }

/* 搜索框 */
.search {
  position: relative; margin: 30px auto 0; max-width: 660px;
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--bg-soft) 88%, transparent);
  border: 1px solid var(--line); border-radius: 15px;
  padding: 4px 12px 4px 14px; box-shadow: var(--shadow);
  transition: .2s;
}
html[data-theme="light"] .search { background: #fff; }
.search:focus-within { border-color: rgba(79, 140, 255, .55); box-shadow: 0 0 0 4px rgba(79, 140, 255, .13), var(--shadow); }
.search .ico { opacity: .65; font-size: 14px; }
.search input {
  flex: 1; min-width: 0; height: 46px; padding: 0 10px;
  border: 0; outline: 0; background: transparent;
  color: var(--fg); font-size: 15px; font-family: var(--font);
}
.search input::placeholder { color: var(--muted); }
.search kbd {
  font-family: var(--font); font-size: 11.5px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 7px; padding: 3px 7px; white-space: nowrap;
}
@media (max-width: 560px) { .search kbd { display: none; } }

/* 统计 */
.stats { display: flex; justify-content: center; gap: 14px; margin: 26px 0 0; flex-wrap: wrap; }
.stat {
  min-width: 112px; padding: 12px 18px; border-radius: 13px;
  border: 1px solid var(--line); background: var(--card);
}
.stat b { display: block; font-size: 22px; letter-spacing: -.01em; }
.stat span { font-size: 12px; color: var(--muted); }

/* ---------------------------------------------------------------- 区块 */
.sec { padding: 46px 20px 10px; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.sec-head h2 { margin: 0; font-size: 21px; font-weight: 700; letter-spacing: -.01em; }
.sec-head h2 i { font-style: normal; font-size: 12.5px; color: var(--muted); font-weight: 400; margin-left: 8px; }
.more { font-size: 13.5px; color: var(--brand); white-space: nowrap; }
.more:hover { text-decoration: underline; }

/* 分类 chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.chip {
  padding: 7px 13px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--line); background: var(--card);
  color: var(--fg-dim); font-size: 13px; font-family: var(--font);
  transition: .18s;
}
.chip:hover { color: var(--fg); border-color: var(--line-strong); transform: translateY(-1px); }
.chip.on {
  color: #fff; border-color: transparent; background: var(--grad);
  box-shadow: 0 5px 16px rgba(79, 140, 255, .3);
}

/* ---------------------------------------------------------------- 工具卡片 */
.grid {
  display: grid; gap: 13px;
  grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
}

.card {
  display: flex; gap: 13px; align-items: flex-start;
  padding: 15px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--card);
  transition: transform .18s, border-color .18s, background .18s, box-shadow .18s;
  position: relative; overflow: hidden;
}
.card::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 100% 0%, rgba(79, 140, 255, .12), transparent 55%);
  opacity: 0; transition: opacity .2s; pointer-events: none;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong); background: var(--card-hover);
  box-shadow: var(--shadow);
}
.card:hover::after { opacity: 1; }

.logo {
  flex: 0 0 40px; width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  font-weight: 800; font-size: 16px; color: #fff;
  background: linear-gradient(135deg, #4f8cff, #6d5cf6);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .16);
}
.logo.t2 { background: linear-gradient(135deg, #a855f7, #ec4899); }
.logo.t3 { background: linear-gradient(135deg, #22d3ee, #0ea5e9); }
.logo.t4 { background: linear-gradient(135deg, #34d399, #0ea5e9); }
.logo.t5 { background: linear-gradient(135deg, #fb923c, #f43f5e); }

.card-body { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.card-name { display: flex; align-items: center; gap: 7px; font-weight: 650; font-size: 15px; }
.card-name em {
  font-style: normal; font-size: 10.5px; padding: 1px 6px; border-radius: 6px;
  color: #fff; background: linear-gradient(120deg, #fb923c, #f43f5e);
}
.card-desc { color: var(--fg-dim); font-size: 13.2px; line-height: 1.6; }
.tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 3px; }
.tag {
  font-size: 11.5px; padding: 2px 7px; border-radius: 6px;
  border: 1px solid var(--line); color: var(--muted); background: transparent;
}
.tag.ok { color: var(--ok); border-color: rgba(52, 211, 153, .3); background: rgba(52, 211, 153, .08); }
.tag.no { color: var(--no); border-color: rgba(251, 146, 60, .28); background: rgba(251, 146, 60, .07); }

.empty {
  grid-column: 1 / -1; padding: 42px 16px; text-align: center;
  color: var(--muted); border: 1px dashed var(--line); border-radius: var(--radius);
}

/* ---------------------------------------------------------------- 资讯 */
.news-grid { display: grid; gap: 13px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }

.post {
  display: flex; gap: 15px; padding: 15px;
  border-radius: var(--radius); border: 1px solid var(--line); background: var(--card);
  transition: transform .18s, border-color .18s, background .18s, box-shadow .18s;
}
.post:hover { transform: translateY(-3px); border-color: var(--line-strong); background: var(--card-hover); box-shadow: var(--shadow); }

.post-cover {
  position: relative; flex: 0 0 62px; height: 62px; border-radius: 13px;
  display: grid; place-items: center; font-size: 25px;
  background: linear-gradient(140deg, rgba(79, 140, 255, .22), rgba(168, 85, 247, .2));
  border: 1px solid var(--line); overflow: hidden;
}
.post-cover b {
  position: absolute; bottom: 3px; left: 0; right: 0;
  font-size: 9.5px; font-weight: 500; color: var(--fg-dim); text-align: center;
}
.post-in { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.post h3 {
  margin: 0; font-size: 15.5px; font-weight: 650; line-height: 1.45;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.post p {
  margin: 0; color: var(--fg-dim); font-size: 13.2px; line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.post-meta { display: flex; gap: 7px; color: var(--muted); font-size: 12px; margin-top: auto; }

/* ---------------------------------------------------------------- 文章页 */
.article { max-width: 760px; margin: 0 auto; padding: 52px 20px 60px; }
.article h1 { font-size: clamp(24px, 3.6vw, 34px); line-height: 1.34; margin: 0 0 14px; letter-spacing: -.02em; }
.article-meta {
  display: flex; flex-wrap: wrap; gap: 14px; padding-bottom: 20px; margin-bottom: 26px;
  border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px;
}
.article-meta a { color: var(--brand); }

.prose { font-size: 16px; line-height: 1.86; color: var(--fg); }
.prose > *:first-child { margin-top: 0; }
.prose h2 { font-size: 20px; margin: 38px 0 12px; letter-spacing: -.01em; }
.prose h3 { font-size: 17px; margin: 28px 0 10px; }
.prose p { margin: 15px 0; color: color-mix(in srgb, var(--fg) 92%, var(--muted)); }
.prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { padding-left: 22px; margin: 14px 0; }
.prose li { margin: 7px 0; }
.prose strong { font-weight: 680; }
.prose blockquote {
  margin: 20px 0; padding: 12px 18px;
  border-left: 3px solid var(--brand); border-radius: 0 10px 10px 0;
  background: var(--card); color: var(--fg-dim);
}
.prose blockquote p { margin: 0; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 30px 0; }
.prose code {
  font-family: var(--mono); font-size: .88em;
  padding: 2px 6px; border-radius: 6px;
  background: rgba(127, 140, 255, .14); color: #b9c7ff;
}
html[data-theme="light"] .prose code { background: rgba(79, 140, 255, .12); color: #2952cc; }
.prose pre {
  margin: 20px 0; padding: 15px 17px; overflow-x: auto;
  background: #0b0f1a; border: 1px solid var(--line); border-radius: 12px;
}
html[data-theme="light"] .prose pre { background: #0f172a; }
.prose pre code { background: none; color: #d7e0f5; font-size: 13px; padding: 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; display: block; overflow-x: auto; }
.prose th, .prose td { padding: 9px 12px; border: 1px solid var(--line); text-align: left; }
.prose th { background: var(--card); font-weight: 650; }

/* ---------------------------------------------------------------- 页脚 */
.foot { margin-top: 60px; border-top: 1px solid var(--line); padding: 24px 0 34px; }
.foot-in {
  display: flex; flex-wrap: wrap; gap: 10px 20px;
  align-items: center; justify-content: space-between;
  color: var(--muted); font-size: 12.8px;
}
.foot a:hover { color: var(--fg); }

/* ---------------------------------------------------------------- 动效 */
.reveal { animation: rise .42s cubic-bezier(.22, .8, .28, 1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: none; } }
.card:nth-child(n+7) { animation-delay: .03s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------------------------------------------------------------- 响应式 */
@media (max-width: 720px) {
  body { font-size: 15px; }
  .hero { padding: 48px 20px 22px; }
  .sec { padding: 34px 20px 6px; }
  .nav-links a { padding: 7px 9px; }
  .brand > span:last-child { display: none; }
  .grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .stats { gap: 10px; }
  .stat { min-width: 96px; padding: 10px 14px; }
}

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 8px; border: 3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }