:root {
  --primary: #6C63FF; --primary-dark: #574fd6; --primary-glow: rgba(108,99,255,.22);
  --accent: #00D4AA; --accent2: #FF6B6B; --warn: #F59E0B;
  --bg: #0A0A14; --bg-card: #12121E; --bg-el: #1A1A2E; --bg-sb: #0D0D18;
  --text: #E4E4F0; --text-muted: #7878A0; --text-dim: #4A4A68;
  --border: #1E1E35; --border-hv: #3A3A60;
  --radius: 14px; --radius-sm: 8px;
  --nav-h: 60px; --lnav-w: 220px; --rnews-w: 272px;
}
html[data-theme="light"] {
  --bg: #F0F0F8; --bg-card: #FFFFFF; --bg-el: #E8E8F4; --bg-sb: #F5F5FB;
  --text: #1A1A2E; --text-muted: #5A5A80; --text-dim: #9090B8;
  --border: #D8D8EE; --border-hv: #BBBBD8;
  --primary-glow: rgba(108,99,255,.12);
}
html[data-theme="light"] .nav{background:rgba(240,240,248,.96)}
html[data-theme="light"] .modal-box{background:#FFFFFF}
html[data-theme="light"] .modal-code{background:#EEEEF8}
html[data-theme="light"] .lnav-ai input{background:rgba(0,0,0,.05)}
html[data-theme="light"] .news-title{color:var(--text)}
body{transition:background-color .25s,color .2s}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
background:var(--bg);color:var(--text);line-height:1.6;font-size:15px;min-height:100vh}
a{color:var(--primary);text-decoration:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}
img{display:block}
::-webkit-scrollbar{width:4px;height:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}

/* ── NAV ── */
.nav{background:rgba(10,10,20,.96);backdrop-filter:blur(20px);position:sticky;
top:0;z-index:400;border-bottom:1px solid var(--border);height:var(--nav-h)}
.nav-in{max-width:1800px;margin:0 auto;padding:0 20px;
display:flex;align-items:center;gap:14px;height:100%}
.nav-logo{display:flex;align-items:center;gap:8px;color:var(--text);
font-size:1rem;font-weight:900;white-space:nowrap;flex-shrink:0}
.nav-logo-ic{width:30px;height:30px;background:linear-gradient(135deg,var(--primary),var(--accent));
border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.9rem}
.nav-logo b{color:var(--primary)}
.nav-logo .nav-sub{font-size:.6rem;color:var(--text-muted);font-weight:400;
margin-left:6px;letter-spacing:.04em}
.nav-search{flex:1;max-width:480px;position:relative}
.nav-search input{width:100%;background:var(--bg-el);border:1px solid var(--border);
border-radius:22px;padding:8px 16px 8px 36px;color:var(--text);font-size:.85rem;
outline:none;transition:.2s;font-family:inherit}
.nav-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.nav-search .ns-ic{position:absolute;left:11px;top:50%;transform:translateY(-50%);
color:var(--text-muted);font-size:.85rem;pointer-events:none}
.nav-links{display:flex;align-items:center;gap:4px;flex-shrink:0}
.nav-link{font-size:.8rem;color:var(--text-muted);padding:5px 10px;border-radius:8px;transition:.15s}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}

/* ── MOBILE CATS ── */
.mob-cats{display:none;overflow-x:auto;border-bottom:1px solid var(--border);
background:var(--bg-sb);padding:0 8px;scrollbar-width:none}
.mob-cats::-webkit-scrollbar{display:none}
.mob-cats-in{display:flex;gap:4px;padding:8px 0;white-space:nowrap}
.mcat{font-size:.75rem;font-weight:700;color:var(--text-muted);
padding:5px 12px;border-radius:20px;border:1px solid var(--border);transition:.15s;flex-shrink:0}
.mcat:hover,.mcat.on{color:var(--primary);border-color:var(--primary);
background:rgba(108,99,255,.1)}

/* ── PAGE SHELL ── */
.page-shell{display:flex;max-width:1800px;margin:0 auto;min-height:calc(100vh - var(--nav-h))}

/* ── LEFT SIDEBAR ── */
.left-nav{width:var(--lnav-w);flex-shrink:0;position:sticky;top:var(--nav-h);
height:calc(100vh - var(--nav-h));overflow-y:auto;background:var(--bg-sb);
border-right:1px solid var(--border);padding:12px 0 24px}
.lnav-section{padding:8px 14px 4px;font-size:.65rem;font-weight:700;
color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;margin-top:8px}
.lnav-item{display:flex;align-items:center;gap:8px;padding:7px 16px;
font-size:.82rem;font-weight:600;color:var(--text-muted);transition:.15s;
border-left:3px solid transparent;cursor:pointer}
.lnav-item:hover{color:var(--text);background:rgba(255,255,255,.04)}
.lnav-item.on{color:var(--primary);border-left-color:var(--primary);
background:rgba(108,99,255,.08)}
.lnav-item .li-em{width:20px;text-align:center;flex-shrink:0;font-size:.9rem}
.lnav-item .li-cnt{font-size:.68rem;color:var(--text-dim);margin-left:auto;
background:var(--bg-el);padding:1px 6px;border-radius:10px}
.lnav-divider{height:1px;background:var(--border);margin:10px 14px}

/* Left AI Assistant (compact) */
.lnav-ai{margin:14px 12px 0;background:linear-gradient(135deg,rgba(108,99,255,.12),rgba(0,212,170,.08));
border:1px solid rgba(108,99,255,.25);border-radius:var(--radius-sm);padding:12px}
.lnav-ai h4{font-size:.75rem;font-weight:800;margin-bottom:8px;
display:flex;align-items:center;gap:5px}
.lnav-ai input{width:100%;background:rgba(0,0,0,.3);border:1px solid rgba(108,99,255,.3);
border-radius:6px;padding:6px 10px;color:var(--text);font-size:.75rem;outline:none;
font-family:inherit;margin-bottom:6px}
.lnav-ai input:focus{border-color:var(--primary)}
.lnav-ai-btn{width:100%;background:var(--primary);color:#fff;font-size:.75rem;
font-weight:700;padding:6px;border-radius:6px;transition:.15s}
.lnav-ai-btn:hover{background:var(--primary-dark)}
.lnav-ai-chips{display:flex;flex-wrap:wrap;gap:4px;margin-top:6px}
.lnav-chip{font-size:.65rem;background:rgba(108,99,255,.1);color:var(--primary);
padding:2px 7px;border-radius:12px;cursor:pointer;border:1px solid rgba(108,99,255,.2)}
.lnav-chip:hover{background:rgba(108,99,255,.2)}
.lnav-ai-result{margin-top:8px;padding:8px;background:rgba(0,0,0,.3);
border-radius:6px;font-size:.72rem;color:var(--text-muted);line-height:1.6;
display:none;max-height:120px;overflow-y:auto}

/* ── MAIN CONTENT ── */
.content-area{flex:1;min-width:0;padding:20px 20px 48px;overflow:hidden}

/* Section */
.section{margin-bottom:32px}
.section-hd{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.section-hd h2{font-size:1rem;font-weight:900;display:flex;align-items:center;gap:6px}
.section-line{flex:1;height:1px;background:var(--border)}
.section-more{font-size:.72rem;color:var(--text-muted);transition:.15s;flex-shrink:0}
.section-more:hover{color:var(--primary)}

/* Skill Card Grid (search results) */
.skill-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:12px}
/* Section Grid: fixed 4 columns for homepage sections */
.section-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:1280px){.section-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:900px){.section-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.section-grid{grid-template-columns:1fr}}

/* Skill Card */
.sk-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);
padding:14px 16px;cursor:pointer;transition:border-color .2s,transform .15s;
display:flex;flex-direction:column;gap:0;overflow:hidden}
.sk-card:hover{border-color:var(--border-hv);transform:translateY(-2px)}
/* aspect-ratio 3:1 → with object-fit:cover at SVG 1344:768 (1.75:1),
   ~58% of SVG vertical is visible (centered y≈161-608) which fully covers
   the text safe-band (y=280-540). Matches old visual density (~88px @ ~280px card). */
.sk-cover{margin:-14px -16px 12px -16px;aspect-ratio:3/1;
background:var(--bg-el);border-bottom:1px solid var(--border);
border-radius:var(--radius) var(--radius) 0 0;overflow:hidden}
.sk-cover img{width:100%;height:100%;object-fit:cover;display:block;image-rendering:auto}
.sk-card-top{display:flex;align-items:flex-start;gap:10px;margin-bottom:8px}
.sk-av{width:38px;height:38px;flex-shrink:0;border-radius:10px;
display:flex;align-items:center;justify-content:center;font-size:1.1rem}
.sk-head{flex:1;min-width:0}
.sk-name{font-size:.88rem;font-weight:800;white-space:nowrap;overflow:hidden;
text-overflow:ellipsis;margin-bottom:2px;color:var(--text)}
.sk-meta{font-size:.68rem;color:var(--text-muted);display:flex;align-items:center;gap:6px}
.sk-score{font-size:.75rem;font-weight:900;color:var(--accent);flex-shrink:0}
.type-badge{font-size:.6rem;font-weight:700;padding:2px 7px;border-radius:10px;
letter-spacing:.04em;white-space:nowrap}
.sk-desc{font-size:.78rem;color:var(--text-muted);line-height:1.5;
display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
margin-bottom:8px;flex:1}
.sk-tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:10px}
.sk-tag{font-size:.62rem;background:rgba(108,99,255,.08);color:var(--text-muted);
padding:2px 7px;border-radius:8px;border:1px solid var(--border)}
.sk-divider{height:1px;background:var(--border);margin:0 -16px 10px;width:calc(100% + 32px)}
.sk-actions{display:flex;gap:6px;flex-wrap:wrap}
.sk-btn{font-size:.72rem;font-weight:700;padding:5px 10px;border-radius:8px;
border:1px solid;transition:.15s;display:inline-flex;align-items:center;gap:3px}
.sk-btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.sk-btn-primary:hover{background:var(--primary-dark)}
.sk-btn-ghost{background:transparent;border-color:var(--border);color:var(--text-muted)}
.sk-btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(108,99,255,.07)}
.sk-btn-link{background:transparent;border-color:var(--border);color:var(--text-muted)}
.sk-btn-link:hover{border-color:var(--accent);color:var(--accent);background:rgba(0,212,170,.06)}

/* Badge colors */
.tb-mcp{background:rgba(108,99,255,.18);color:#9E97FF}
.tb-cursor_rule{background:rgba(0,212,170,.15);color:#00D4AA}
.tb-n8n{background:rgba(245,158,11,.15);color:#F59E0B}
.tb-dify{background:rgba(168,85,247,.15);color:#A855F7}
.tb-prompt{background:rgba(59,130,246,.15);color:#60A5FA}
.tb-workflow{background:rgba(16,185,129,.15);color:#34D399}
.tb-chatgpt{background:rgba(16,185,129,.15);color:#34D399}
.tb-claude_skill{background:rgba(108,99,255,.18);color:#9E97FF}
.tb-installable{background:rgba(120,120,160,.15);color:#A0A0C8}

/* Hot badge */
.hot-badge{font-size:.6rem;background:rgba(245,158,11,.15);color:var(--warn);
padding:2px 6px;border-radius:8px;font-weight:700}

/* Loading */
.loading{padding:60px 20px;text-align:center;color:var(--text-muted)}
.loading-spin{width:32px;height:32px;border:3px solid var(--border);
border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;
margin:0 auto 12px}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── RIGHT NEWS SIDEBAR ── */
.right-news{width:var(--rnews-w);flex-shrink:0;position:sticky;top:var(--nav-h);
height:calc(100vh - var(--nav-h));overflow-y:auto;border-left:1px solid var(--border);
padding:14px 12px 24px}
.rnews-hd{font-size:.82rem;font-weight:900;color:var(--text-muted);
text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px;
display:flex;align-items:center;gap:6px}
.news-card{display:block;margin-bottom:12px;border:1px solid var(--border);
border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-card);
transition:border-color .15s;cursor:pointer}
.news-card:hover{border-color:var(--primary)}
.news-cover{width:100%;aspect-ratio:16/9;overflow:hidden;position:relative;background:var(--bg-el)}
.news-cover img{width:100%;height:100%;object-fit:cover;display:block;image-rendering:auto}
.news-ph{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;
justify-content:center;gap:4px;position:relative;overflow:hidden}
.news-ph-icon{position:absolute;inset:0;display:flex;align-items:center;
justify-content:center;font-size:2.5rem;opacity:.12}
.news-ph-ttl{color:rgba(255,255,255,.9);font-size:.72rem;font-weight:700;
text-align:center;padding:0 10px;position:relative;z-index:1;line-height:1.35;
display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-ph-wm{position:absolute;bottom:5px;right:8px;font-size:.55rem;
color:rgba(255,255,255,.4);font-weight:700;letter-spacing:.04em}
.news-ph-cat-cn{font-size:1.1rem;font-weight:900;color:rgba(255,255,255,.95);
position:relative;z-index:1;text-align:center;padding:0 10px;line-height:1.3;
text-shadow:0 2px 8px rgba(0,0,0,.5)}
.news-ph-date-cn{font-size:.6rem;color:rgba(255,255,255,.6);position:relative;
z-index:1;margin-top:3px;letter-spacing:.05em}
.news-body{padding:8px 10px}
.news-cat{font-size:.6rem;font-weight:700;color:var(--primary);
background:rgba(108,99,255,.1);padding:1px 6px;border-radius:8px;
display:inline-block;margin-bottom:4px}
.news-title{font-size:.78rem;font-weight:700;line-height:1.4;color:var(--text);
display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
margin-bottom:4px}
.news-src{font-size:.65rem;color:var(--text-muted)}
.news-empty{padding:24px 12px;text-align:center;color:var(--text-muted);font-size:.78rem}

/* ── CULTURE CARDS ── */
.culture-card{display:block;border:1px solid var(--border);border-radius:12px;overflow:hidden;text-decoration:none;color:inherit;transition:.15s;background:var(--surface)}
.culture-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 16px rgba(108,99,255,.15)}
.culture-card-cover{width:100%;aspect-ratio:16/9;overflow:hidden;position:relative;background:#1a1a2e}
.culture-card-cover img{width:100%;height:100%;object-fit:cover;display:block}
.culture-card-body{padding:10px 12px 12px}
.culture-card-cat{font-size:.6rem;font-weight:700;color:var(--primary);background:rgba(108,99,255,.1);padding:1px 6px;border-radius:8px;display:inline-block;margin-bottom:5px}
.culture-card-title{font-size:.82rem;font-weight:700;line-height:1.4;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(max-width:700px){#cultureCards{grid-template-columns:1fr !important}}
/* ── FOOTER ── */
footer{text-align:center;padding:24px;font-size:.78rem;color:var(--text-muted);
border-top:1px solid var(--border)}
footer a{color:var(--text-muted);margin:0 6px}
footer a:hover{color:var(--primary)}

/* ── INSTALL MODAL ── */
.modal-ov{display:none;position:fixed;inset:0;background:rgba(0,0,0,.75);
z-index:1000;align-items:center;justify-content:center;padding:16px}
.modal-box{background:#14142A;border:1px solid var(--border);border-radius:var(--radius);
padding:22px;max-width:520px;width:100%;max-height:90vh;overflow-y:auto}
.modal-title{font-size:1rem;font-weight:800;margin-bottom:4px}
.modal-sub{font-size:.78rem;color:var(--text-muted);margin-bottom:16px}
.agent-tabs{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:14px}
.agent-tab{padding:5px 12px;border-radius:18px;font-size:.76rem;font-weight:700;
border:1px solid var(--border);background:transparent;color:var(--text-muted);transition:.15s}
.agent-tab.on,.agent-tab:hover{border-color:var(--primary);color:var(--primary);
background:rgba(108,99,255,.1)}
.modal-code{background:#0A0A14;border:1px solid var(--border);border-radius:8px;
padding:12px;font-family:monospace;font-size:.76rem;white-space:pre-wrap;color:var(--accent);
max-height:200px;overflow-y:auto;margin-bottom:12px;line-height:1.65}
.modal-actions{display:flex;gap:8px;justify-content:flex-end}
.m-btn{padding:7px 16px;border-radius:8px;font-size:.8rem;font-weight:700;
border:1px solid;transition:.15s}
.m-btn-ghost{border-color:var(--border);color:var(--text-muted);background:transparent}
.m-btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.m-btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.m-btn-primary:hover{background:var(--primary-dark)}

/* ── THEME BTN ── */
.theme-btn{background:transparent;border:1px solid var(--border);color:var(--text-muted);
padding:5px 9px;border-radius:8px;font-size:.85rem;transition:.15s;flex-shrink:0;cursor:pointer}
.theme-btn:hover{border-color:var(--primary);color:var(--primary)}

/* ── HERO BANNER ── */
.hero-banner{padding:36px 20px 28px;background:linear-gradient(180deg,rgba(108,99,255,.07) 0%,transparent 100%);border-bottom:1px solid var(--border)}
html[data-theme="light"] .hero-banner{background:linear-gradient(180deg,rgba(108,99,255,.05) 0%,transparent 100%)}
.hero-inner{max-width:1000px;margin:0 auto;text-align:center}
.hero-title{font-size:1.7rem;font-weight:900;line-height:1.3;margin-bottom:8px;letter-spacing:-.02em}
.hero-title b{color:var(--primary)}
.hero-sub{font-size:.92rem;color:var(--text-muted);margin-bottom:22px;line-height:1.65}
.hero-finder{display:flex;gap:8px;max-width:700px;margin:0 auto 28px;position:relative}
.hero-finder input{flex:1;background:var(--bg-el);border:1.5px solid var(--border);
border-radius:24px;padding:13px 20px 13px 46px;color:var(--text);font-size:.95rem;
outline:none;transition:.2s;font-family:inherit}
.hero-finder input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.hero-finder .hf-ic{position:absolute;left:17px;top:50%;transform:translateY(-50%);
font-size:1rem;color:var(--text-muted);pointer-events:none}
.hero-finder-btn{background:var(--primary);color:#fff;border:none;border-radius:20px;
padding:13px 22px;font-size:.88rem;font-weight:700;cursor:pointer;white-space:nowrap;
transition:.15s;flex-shrink:0}
.hero-finder-btn:hover{background:var(--primary-dark)}
.hero-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:28px;margin-top:-14px}
.hero-tag{font-size:.72rem;color:var(--text-muted);padding:3px 10px;border-radius:14px;
border:1px solid var(--border);cursor:pointer;transition:.15s;background:transparent}
.hero-tag:hover{color:var(--primary);border-color:var(--primary);background:rgba(108,99,255,.06)}
.scene-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;max-width:900px;margin:0 auto}
.scene-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;
padding:14px 10px;text-align:center;cursor:pointer;transition:border-color .2s,transform .15s;
display:block;text-decoration:none;color:var(--text)}
.scene-card:hover{border-color:var(--primary);background:rgba(108,99,255,.05);transform:translateY(-2px)}
.scene-em{font-size:1.5rem;margin-bottom:5px}
.scene-label{font-size:.82rem;font-weight:800;margin-bottom:2px}
.scene-sub{font-size:.65rem;color:var(--text-muted);line-height:1.4}
@media(max-width:900px){.scene-grid{grid-template-columns:repeat(5,1fr)}}
@media(max-width:640px){.scene-grid{grid-template-columns:repeat(2,1fr)}.hero-title{font-size:1.3rem}.hero-finder{flex-wrap:wrap}}
@media(max-width:480px){.hero-banner{padding:24px 14px 20px}}

/* ── RECOMMENDATION PANEL ── */
.rec-panel{max-width:900px;margin:20px auto 0;text-align:left;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.rec-header{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;padding:14px 16px;
background:linear-gradient(135deg,rgba(108,99,255,.1),rgba(0,212,170,.06));
border:1px solid rgba(108,99,255,.22);border-radius:12px}
.rec-task-title{font-size:.95rem;font-weight:800;margin-bottom:4px}
.rec-summary{font-size:.8rem;color:var(--text-muted);line-height:1.5;margin-bottom:6px}
.rec-meta{display:flex;gap:6px;flex-wrap:wrap}
.rec-meta-tag{font-size:.68rem;padding:2px 8px;border-radius:10px;font-weight:600;
background:rgba(0,0,0,.1);color:var(--text-muted);border:1px solid var(--border)}
html[data-theme="light"] .rec-meta-tag{background:rgba(0,0,0,.06)}
.rec-close{margin-left:auto;flex-shrink:0;font-size:.78rem;color:var(--text-muted);cursor:pointer;
background:transparent;border:1px solid var(--border);border-radius:6px;padding:3px 10px;transition:.15s;align-self:flex-start}
.rec-close:hover{color:var(--primary);border-color:var(--primary)}
.rec-tools{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.rec-tool{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;
padding:12px 14px;display:flex;align-items:flex-start;gap:10px;transition:.15s}
.rec-tool:hover{border-color:var(--border-hv)}
.rec-step{width:26px;height:26px;flex-shrink:0;border-radius:50%;background:var(--primary);
color:#fff;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:800;margin-top:1px}
.rec-body{flex:1;min-width:0}
.rec-name-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:4px}
.rec-tname{font-size:.9rem;font-weight:800}
.rec-role{font-size:.6rem;font-weight:700;padding:2px 7px;border-radius:10px;
background:rgba(0,212,170,.1);color:var(--accent);border:1px solid rgba(0,212,170,.2)}
.rec-score{font-size:.72rem;color:var(--accent);font-weight:700}
.rec-purpose{font-size:.8rem;color:var(--text);margin-bottom:6px;line-height:1.5}
.rec-flags{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:8px}
.rec-flag{font-size:.63rem;padding:2px 7px;border-radius:10px;font-weight:600;white-space:nowrap}
.rf-dl{background:rgba(0,212,170,.1);color:var(--accent)}
.rf-ext{background:rgba(245,158,11,.1);color:var(--warn)}
.rf-new{background:rgba(108,99,255,.1);color:var(--primary)}
.rf-info{background:rgba(120,120,160,.1);color:var(--text-muted)}
.rec-tips{padding:10px 14px;background:rgba(245,158,11,.06);border:1px solid rgba(245,158,11,.2);
border-radius:10px;font-size:.78rem;color:var(--text-muted);line-height:1.7}
.rec-tips strong{color:var(--warn);display:block;margin-bottom:4px}
.rec-tips ul{margin-left:16px}
.rec-no-result{padding:32px;text-align:center;color:var(--text-muted);background:var(--bg-card);
border:1px solid var(--border);border-radius:12px}
html[data-theme="light"] .rec-header{background:linear-gradient(135deg,rgba(108,99,255,.06),rgba(0,212,170,.04))}
@media(max-width:640px){.rec-tool{flex-direction:column}.rec-step{width:22px;height:22px}}

/* ── RESPONSIVE ── */
@media(max-width:1280px){:root{--rnews-w:240px}}
@media(max-width:1024px){
  .right-news{display:none}
  :root{--lnav-w:200px}
}
@media(max-width:768px){
  .left-nav{display:none}
  .mob-cats{display:block}
  .content-area{padding:14px 12px 48px}
  .skill-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
}
@media(max-width:480px){
  .skill-grid{grid-template-columns:1fr}
  .nav-search{display:none}
}

/* ── 🔥 AI 外部热点 (HN/Reddit) ───────────────────────────────────────── */
.ext-trend-box{background:linear-gradient(135deg,rgba(255,107,107,.10),rgba(245,158,11,.06));
  border:1px solid var(--border);border-radius:14px;padding:14px 18px;margin:0 0 18px}
.ext-trend-hd{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.ext-trend-tag{font-size:.82rem;font-weight:700;color:var(--text);background:rgba(255,107,107,.14);
  padding:3px 10px;border-radius:6px}
.ext-trend-meta{font-size:.7rem;color:var(--text-muted)}
.ext-trend-cols{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ext-trend-col{background:rgba(255,255,255,0.03);border:1px solid var(--border);border-radius:10px;padding:10px 14px}
html[data-theme="light"] .ext-trend-col{background:#fff}
.ext-trend-h{font-size:.78rem;color:var(--text-muted);margin-bottom:8px;font-weight:600}
.ext-trend-pill{display:inline-block;background:#ff8a00;color:#fff;padding:1px 7px;border-radius:6px;font-size:.7rem;font-weight:700;margin-right:6px}
.ext-trend-list{list-style:none;margin:0;padding:0}
.ext-trend-list li{padding:4px 0;font-size:.78rem;line-height:1.5;display:flex;gap:8px;align-items:flex-start}
.ext-trend-list a{color:var(--text);text-decoration:none;flex:1}
.ext-trend-list a:hover{color:var(--accent)}
.ext-trend-num{display:inline-block;font-size:.66rem;background:var(--bg-el);color:var(--text-muted);
  padding:1px 7px;border-radius:8px;min-width:36px;text-align:center;flex-shrink:0;font-weight:600}
@media(max-width:640px){.ext-trend-cols{grid-template-columns:1fr}}