:root{
  --bg:#f2f3f6;--surface:#fff;--surface-2:#f7f8fa;--fg:#20242f;--fg-2:#4c5265;--muted:#6e7488;
  --border:rgba(32,36,47,.09);--border-strong:rgba(32,36,47,.16);
  --accent:#5460f0;--accent-ink:#4151e8;--accent-soft:#edefff;--accent-border:rgba(84,96,240,.32);
  --chip-bg:#f1f2f6;--chip-fg:#5a6072;--hero-1:#5d6776;--hero-2:#3a4250;
  --glass:rgba(255,255,255,.1);--glass-border:rgba(255,255,255,.24);
  --shadow:0 10px 30px -14px rgba(23,28,45,.16);--shadow-soft:0 4px 14px -8px rgba(23,28,45,.12);
  --r:16px;--ease:cubic-bezier(.2,0,0,1);--marker:#f59e0b;
}
html[data-theme="dark"]{
  --bg:#0f1218;--surface:#161a22;--surface-2:#1b202b;--fg:#e8eaf1;--fg-2:#b4bac9;--muted:#9aa1b4;
  --border:rgba(255,255,255,.08);--border-strong:rgba(255,255,255,.16);
  --accent:#7d89ff;--accent-ink:#9aa4ff;--accent-soft:rgba(125,137,255,.16);--accent-border:rgba(125,137,255,.4);
  --chip-bg:#1f2530;--chip-fg:#a7adbd;--hero-1:#515a69;--hero-2:#2c333e;
  --glass:rgba(255,255,255,.07);--glass-border:rgba(255,255,255,.16);
  --shadow:0 10px 30px -14px rgba(0,0,0,.5);--shadow-soft:0 4px 14px -8px rgba(0,0,0,.4);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-size:15px;line-height:1.6;
  font-family:"MiSans","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
img,svg{display:block}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.skip-link{position:fixed;top:-48px;left:16px;z-index:200;background:var(--accent);color:#fff;padding:8px 14px;border-radius:10px;transition:top .15s}
.skip-link:focus{top:12px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* 顶栏 */
.nav{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--border);backdrop-filter:blur(12px)}
.nav-inner{height:62px;display:flex;align-items:center;gap:14px}
.brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:700}
.brand-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#6a76ff,#4151e8);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:800;box-shadow:0 4px 10px -4px rgba(84,96,240,.55)}
.brand-text{white-space:nowrap}
.nav-slogan{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.engine-sel{height:36px;border-radius:10px;border:1px solid var(--border-strong);background:var(--surface);
  color:var(--fg-2);font-size:13px;padding:0 8px;outline:none;cursor:pointer}
.icon-btn{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;color:var(--fg-2);position:relative;
  transition:background .15s,color .15s}
.icon-btn:hover{background:var(--chip-bg);color:var(--fg)}
.icon-btn svg{width:19px;height:19px}
html[data-theme="dark"] .ic-sun{display:block}
html[data-theme="dark"] .ic-moon{display:none}
html[data-theme="light"] .ic-sun{display:none}
html[data-theme="light"] .ic-moon{display:block}
.fav-badge{position:absolute;top:2px;right:2px;min-width:17px;height:17px;padding:0 4px;border-radius:999px;
  background:#f59e0b;color:#fff;font-size:11px;font-weight:700;line-height:17px;text-align:center}
.fav-badge[hidden]{display:none}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(140deg,var(--hero-1),var(--hero-2));color:#fff;padding:60px 24px}
.hero-inner{position:relative;max-width:720px;margin:0 auto;text-align:center}
.hero h1{margin:0;font-size:clamp(24px,4.4vw,38px);font-weight:700}
.hero-date{margin:10px 0 0;font-size:14px;color:rgba(255,255,255,.85)}
.search-wrap{margin:26px auto 0;max-width:640px}
.search-bar{display:flex;align-items:center;gap:6px;background:var(--glass);border:1px solid var(--glass-border);
  border-radius:999px;padding:7px 7px 7px 18px;backdrop-filter:blur(10px);transition:border-color .2s,background .2s}
.search-bar:focus-within{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.42)}
.search-ic{width:18px;height:18px;color:rgba(255,255,255,.8);flex:none}
#searchInput{flex:1;min-width:0;background:none;border:0;outline:none;color:#fff;font-size:15px;height:38px}
#searchInput::placeholder{color:rgba(255,255,255,.75)}
.kbd{flex:none;font-size:12px;color:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.35);border-radius:6px;padding:1px 7px}
#searchInput:not(:placeholder-shown)+.kbd{display:none}
.search-btn{flex:none;height:38px;padding:0 22px;border-radius:999px;background:var(--accent);color:#fff;
  font-size:14px;font-weight:600;transition:transform .15s,filter .15s}
.search-btn:hover{filter:brightness(1.08)}
.search-btn:active{transform:scale(.96)}
.engines{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:16px}
.engine-pill{padding:7px 16px;border-radius:999px;font-size:13.5px;color:rgba(255,255,255,.92);
  background:var(--glass);border:1px solid var(--glass-border);transition:all .15s}
.engine-pill:hover{background:rgba(255,255,255,.18)}
.engine-pill[aria-pressed="true"]{background:#fff;color:#2b3245;border-color:#fff;font-weight:600}

/* 区块 */
main{padding:8px 0 72px}
section{scroll-margin-top:76px}
.sec-head{display:flex;align-items:center;gap:10px;margin:44px 0 18px;flex-wrap:wrap}
.sec-head .marker{width:4px;height:18px;border-radius:2px;background:var(--marker);flex:none}
.sec-head h2{margin:0;font-size:19px;font-weight:700}
.sec-sub{font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sec-count{margin-left:auto;font-size:12.5px;color:var(--fg-2);background:var(--chip-bg);border-radius:999px;padding:3px 10px}
.sec-more{margin-left:auto;font-size:12.5px;color:var(--accent);font-weight:600;white-space:nowrap}
.sec-more:hover{text-decoration:underline;text-underline-offset:2px}

/* 推荐 */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feat{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  overflow:hidden;box-shadow:var(--shadow-soft);display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s}
.feat:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent-border)}
.feat-cover{height:132px;display:grid;place-items:center;overflow:hidden}
.feat-cover img{width:100%;height:100%;object-fit:cover}
.feat-letter{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.35);color:#fff;font-size:23px;font-weight:700}
.feat-body{padding:14px 16px 4px;display:flex;flex-direction:column;gap:6px;flex:1}
.feat-body h3{margin:0;font-size:17px;font-weight:700}
.feat-body p{margin:0;font-size:13px;color:var(--fg-2);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feat-note{font-style:italic;color:var(--accent-ink)!important}
.feat-foot{display:flex;align-items:center;justify-content:space-between;padding:10px 16px 14px;font-size:12.5px;color:var(--muted)}
.go{display:inline-flex;align-items:center;gap:4px;color:var(--accent-ink);font-weight:600;font-size:13px}
.feat:hover .go,.tool:hover .go{transform:translateX(2px)}
.cover-link{position:absolute;inset:0;z-index:1}

/* 动态 */
.notes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.note{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;
  box-shadow:var(--shadow-soft);transition:transform .2s,box-shadow .2s}
.note:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.note-body{padding:16px;display:flex;flex-direction:column;gap:8px}
.note-body h3{margin:0;font-size:15.5px;font-weight:700}
.note-body-text{margin:0;font-size:13px;color:var(--fg-2);line-height:1.6}
.note-date{font-size:12.5px;color:var(--muted)}

/* 工具卡 */
.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.tool{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  padding:14px 16px 12px;display:flex;flex-direction:column;gap:10px;transition:transform .2s,box-shadow .2s,border-color .2s}
.tool:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--accent-border)}
.tool.hide{display:none}
.tool-top{display:flex;align-items:center;gap:10px}
.avatar{width:42px;height:42px;border-radius:12px;flex:none;display:grid;place-items:center;color:#fff;font-size:17px;font-weight:700}
.tool-name{margin:0;font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.fav-btn{position:relative;z-index:2;flex:none;width:34px;height:34px;border-radius:999px;margin-right:-8px;
  display:grid;place-items:center;color:var(--muted);transition:background .15s,color .15s,transform .15s}
.fav-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8}
.fav-btn:hover{background:var(--accent-soft);color:var(--accent-ink)}
.fav-btn.on{color:var(--accent-ink);background:var(--accent-soft)}
.fav-btn.on svg{fill:currentColor}
.tool-desc{margin:0;font-size:13px;color:var(--fg-2);line-height:1.55;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:40px}
.tool-flags{display:flex;gap:6px;flex-wrap:wrap}
.tool-foot{display:flex;align-items:center;justify-content:space-between;min-height:22px}
.tags{display:flex;gap:6px;overflow:hidden}
.chip{display:inline-flex;align-items:center;padding:2px 9px;border-radius:999px;font-size:11.5px;
  font-weight:500;background:var(--chip-bg);color:var(--chip-fg);white-space:nowrap}
.chip-cat{background:var(--accent-soft);color:var(--accent-ink)}
.chip-hot{background:#fdeee3;color:#c2560c}
.chip-invite{background:#fde8f0;color:#c2366a}
.price-free{background:#e6f8f1;color:#0f8f68}
.price-freemium{background:#eef2ff;color:#4151e8}
.price-paid{background:#fdf0e3;color:#b45f0c}
html[data-theme="dark"] .chip-hot{background:rgba(245,158,11,.18);color:#fbbf6e}
html[data-theme="dark"] .price-free{background:rgba(22,184,134,.16);color:#4fd1a5}
html[data-theme="dark"] .price-freemium{background:rgba(125,137,255,.16);color:#a8b1ff}
html[data-theme="dark"] .price-paid{background:rgba(245,158,11,.16);color:#fbbf6e}

/* 搜索状态 */
.search-status{display:none;align-items:center;gap:10px;margin-top:26px;font-size:13.5px;color:var(--fg-2);flex-wrap:wrap}
.search-status.show{display:flex}
.search-status b{color:var(--accent-ink)}
.status-clear{font-size:12.5px;padding:4px 12px;border-radius:999px;border:1px solid var(--border-strong);color:var(--fg-2)}
.status-clear:hover{color:var(--fg);border-color:var(--muted)}
.search-empty{display:none;text-align:center;padding:64px 24px 40px;color:var(--fg-2)}
.search-empty.show{display:block}
.empty-ic{width:52px;height:52px;border-radius:16px;background:var(--chip-bg);display:grid;place-items:center;margin:0 auto 14px;color:var(--muted)}
.empty-ic svg{width:24px;height:24px}
.search-empty h3{margin:0 0 6px;font-size:16px;color:var(--fg)}
.search-empty p{margin:0;font-size:13.5px}
.empty-sugs{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:16px}
.sug{padding:6px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--border-strong);
  font-size:13px;color:var(--fg-2);transition:all .15s}
.sug:hover{border-color:var(--accent-border);color:var(--accent-ink);background:var(--accent-soft)}

/* 浮动 */
.fab-col{position:fixed;right:24px;bottom:28px;z-index:70;display:flex;flex-direction:column;gap:12px;align-items:center}
.fab{width:48px;height:48px;border-radius:999px;background:var(--accent);color:#fff;display:grid;place-items:center;
  box-shadow:0 8px 20px -6px rgba(84,96,240,.5);transition:transform .18s,filter .18s,opacity .18s}
.fab:hover{filter:brightness(1.1);transform:translateY(-2px)}
.fab[hidden]{display:none}
.fab svg{width:21px;height:21px}
.fab-col.left{left:24px;right:auto}
/* 展开态：保持实心主色，用外圈高亮提示「已打开」 */
.fab.is-on{box-shadow:0 0 0 4px rgba(84,96,240,.22),0 8px 20px -6px rgba(84,96,240,.5);
  filter:brightness(1.06)}

/* 分类快速跳转面板 */
.quicknav{position:fixed;left:24px;bottom:88px;z-index:80;width:288px;max-height:min(64vh,480px);
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:16px;box-shadow:0 18px 44px -16px rgba(16,18,32,.4);overflow:hidden;
  opacity:0;transform:translateY(8px) scale(.98);pointer-events:none;
  transition:opacity .18s ease,transform .18s ease}
.quicknav[hidden]{display:none}
.quicknav.open{opacity:1;transform:none;pointer-events:auto}
.qn-head{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 12px 10px 16px;border-bottom:1px solid var(--border);font-size:14px}
.qn-head .icon-btn{width:28px;height:28px}
.qn-body{padding:8px;overflow-y:auto;display:flex;flex-direction:column;gap:2px}
.qn-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;font-size:13.5px;
  color:var(--fg-2);transition:background .15s,color .15s}
.qn-item:hover{background:var(--accent-soft);color:var(--accent-ink)}
.qn-emoji{width:22px;text-align:center;font-size:15px;flex:none}
.qn-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.qn-cnt{font-size:11.5px;color:var(--muted);background:var(--chip-bg);border-radius:999px;
  padding:2px 8px;font-variant-numeric:tabular-nums;flex:none}
.qn-all{margin-top:4px;border-top:1px dashed var(--border);padding-top:10px;border-radius:0 0 10px 10px}

/* 抽屉 */
.overlay{position:fixed;inset:0;z-index:90;background:rgba(15,18,25,.46);opacity:0;pointer-events:none;transition:opacity .25s}
.overlay.show{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;bottom:0;z-index:100;width:min(360px,90vw);background:var(--surface);
  display:flex;flex-direction:column;transition:transform .3s var(--ease)}
.drawer.right{right:0;border-radius:20px 0 0 20px;transform:translateX(102%);border-left:1px solid var(--border)}
.drawer[hidden]{display:none}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;gap:10px;padding:18px 20px 14px;border-bottom:1px solid var(--border)}
.drawer-head h2{margin:0;font-size:16.5px;font-weight:700;flex:1}
.drawer-body{flex:1;overflow-y:auto;padding:12px}
.drawer-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px}
.drawer-item:hover{background:var(--chip-bg)}
.drawer-item .avatar{width:36px;height:36px;border-radius:10px;font-size:14px}
.d-name{flex:1;font-size:14.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.d-sub{font-size:12px;color:var(--muted)}
.drawer-empty{text-align:center;padding:56px 24px;color:var(--fg-2)}
.drawer-empty h3{margin:0 0 6px;font-size:15.5px;color:var(--fg)}
.drawer-empty p{margin:0;font-size:13px}
.drawer-foot{padding:12px 20px;border-top:1px solid var(--border);font-size:12px;color:var(--muted);
  display:flex;align-items:center;justify-content:space-between;gap:10px}
.link-danger{color:#c0392b;font-size:12.5px;font-weight:600}
.link-danger:hover{text-decoration:underline}

/* toast */
.toast{position:fixed;left:50%;bottom:96px;z-index:120;transform:translate(-50%,12px);background:#262b38;color:#fff;
  font-size:13.5px;padding:9px 18px;border-radius:999px;box-shadow:var(--shadow);opacity:0;pointer-events:none;
  transition:opacity .2s,transform .2s}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* 页脚 */
footer{border-top:1px solid var(--border);background:var(--surface)}
.foot-inner{padding:26px 0;display:flex;flex-direction:column;gap:10px}
.foot-links{display:flex;flex-wrap:wrap;gap:6px 18px}
.foot-links a{font-size:13px;color:var(--fg-2)}
.foot-links a:hover{color:var(--accent-ink)}
.foot-meta{font-size:12.5px;color:var(--muted);margin:0}
.foot-meta.small{font-size:12px}
.noscript{max-width:1200px;margin:20px auto;padding:14px 18px;background:#fdf0e3;color:#8a4b0c;
  border:1px solid rgba(196,110,20,.3);border-radius:12px;font-size:13.5px}

/* 响应式 */
@media (max-width:1080px){
  .tool-grid{grid-template-columns:repeat(3,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){ .nav-slogan{display:none} .kbd{display:none} }
@media (max-width:820px){
  .tool-grid{grid-template-columns:repeat(2,1fr)}
  .notes-grid{grid-template-columns:repeat(2,1fr)}
  .sec-sub{display:none}
  .hero{padding:48px 20px}
}
@media (max-width:640px){
  .feat-grid{grid-template-columns:1fr}
  .container{padding:0 16px}
  .fab-col{right:16px;bottom:20px}
  .fab-col.left{left:16px;right:auto}
  .quicknav{left:16px;right:16px;width:auto;bottom:80px}
  .search-btn{padding:0 16px}
  .brand-text{max-width:120px;overflow:hidden;text-overflow:ellipsis}
}
@media (max-width:480px){
  .notes-grid{grid-template-columns:1fr}
  .tool-grid{grid-template-columns:1fr}
  .engine-sel{max-width:84px}
  .sec-head{margin-top:34px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}