/* ============================================================
   干货资源库 · 样式
   设计：深色玻璃拟态 + 渐变光感，强调「高端 / 干货满满」
   ============================================================ */
:root{
  --bg:#0a0e1a;
  --bg-2:#0e1424;
  --text:#eaf0fb;
  --muted:#94a0b8;
  --accent-1:#7c5cff;
  --accent-2:#21d4fd;
  --accent-grad:linear-gradient(90deg,#7c5cff,#21d4fd);
  --card:rgba(255,255,255,.045);
  --card-border:rgba(255,255,255,.09);
  --card-hover:rgba(255,255,255,.07);
  --radius:18px;
  --shadow:0 18px 50px -20px rgba(0,0,0,.7);
  --maxw:1180px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",
    "Noto Sans SC","Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
b{font-weight:700}

/* ---------- 背景光斑 ---------- */
.bg-orbs{position:fixed;inset:0;z-index:-1;overflow:hidden;background:
  radial-gradient(1200px 700px at 80% -10%,#15203b 0%,transparent 60%),
  radial-gradient(900px 600px at 0% 0%,#131a33 0%,transparent 55%),
  linear-gradient(180deg,var(--bg),var(--bg-2));}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.orb-1{width:420px;height:420px;background:#5b3cff;top:-120px;right:8%;animation:float 14s ease-in-out infinite}
.orb-2{width:360px;height:360px;background:#1aa6ff;top:30%;left:-120px;animation:float 18s ease-in-out infinite reverse}
.orb-3{width:300px;height:300px;background:#ff5ca8;bottom:-80px;right:30%;opacity:.25;animation:float 20s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0) translateX(0)}50%{transform:translateY(40px) translateX(20px)}}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:30;backdrop-filter:blur(14px);
  background:rgba(10,14,26,.6);border-bottom:1px solid var(--card-border)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:14px 22px;
  display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.brand-mark{background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;
  color:transparent;font-size:20px}
.brand-name{background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-domain{color:var(--muted);font-size:13px;font-weight:600;letter-spacing:.3px;opacity:.85;padding-left:10px;margin-left:2px;border-left:1px solid var(--card-border)}
.nav-links{display:flex;gap:22px;font-size:14px;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--text)}

/* ---------- 主视觉 ---------- */
.hero{max-width:var(--maxw);margin:0 auto;padding:64px 22px 30px;text-align:center}
.hero-title{font-size:clamp(30px,5vw,52px);margin:0 0 14px;font-weight:800;letter-spacing:-.5px}
.grad{background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--muted);font-size:clamp(15px,2vw,18px);margin:0 auto 34px;max-width:620px}

.search-wrap{position:relative;max-width:680px;margin:0 auto;display:flex;align-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--card-border);border-radius:999px;
  padding:6px 6px 6px 48px;box-shadow:var(--shadow);transition:border-color .25s,box-shadow .25s}
.search-wrap:focus-within{border-color:rgba(124,92,255,.7);
  box-shadow:0 0 0 4px rgba(124,92,255,.18),var(--shadow)}
.search-ico{position:absolute;left:18px;color:var(--muted)}
#search{flex:1;background:transparent;border:0;outline:0;color:var(--text);
  font-size:16px;padding:12px 6px}
#search::placeholder{color:#6b7689}
.clear-btn{background:rgba(255,255,255,.08);border:0;color:var(--muted);cursor:pointer;
  width:30px;height:30px;border-radius:50%;margin-right:6px;font-size:13px}
.clear-btn:hover{color:var(--text)}

/* 统计 */
.stats{display:flex;justify-content:center;gap:46px;margin:34px 0 6px;flex-wrap:wrap}
.stat{display:flex;flex-direction:column;align-items:center}
.stat b{font-size:26px;background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13px;color:var(--muted);margin-top:2px}

/* 热门词 */
.hot{margin-top:22px;font-size:13px;color:var(--muted);display:flex;gap:10px;
  justify-content:center;flex-wrap:wrap;align-items:center}
.hot-tags{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.hot-tags span{background:rgba(255,255,255,.06);border:1px solid var(--card-border);
  padding:5px 13px;border-radius:999px;cursor:pointer;transition:.2s}
.hot-tags span:hover{background:rgba(124,92,255,.18);color:var(--text);border-color:rgba(124,92,255,.5)}

/* ---------- 容器 ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:10px 22px 60px}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;
  margin:26px 0 18px;flex-wrap:wrap}
.result-info{color:var(--muted);font-size:14px}
.result-info b{color:var(--text)}
.filter-chip{background:rgba(124,92,255,.16);border:1px solid rgba(124,92,255,.4);
  color:var(--text);font-size:13px;padding:6px 12px;border-radius:999px;display:flex;align-items:center;gap:8px}
.filter-chip button{background:transparent;border:0;color:var(--muted);cursor:pointer;font-size:12px}
.filter-chip button:hover{color:#ff8db0}

/* ---------- 网格 ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px}
.card{position:relative;background:var(--card);border:1px solid var(--card-border);
  border-radius:var(--radius);padding:20px;cursor:pointer;overflow:hidden;
  transition:transform .25s,border-color .25s,background .25s;
  animation:fadeUp .5s both}
.card::before{content:"";position:absolute;inset:0;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(124,92,255,.12),rgba(33,212,253,.08));
  opacity:0;transition:opacity .25s;pointer-events:none}
.card:hover{transform:translateY(-6px);border-color:rgba(124,92,255,.45);
  background:var(--card-hover)}
.card:hover::before{opacity:1}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;position:relative}
.card-title{font-size:16px;font-weight:700;margin:0;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-source{font-size:11px;color:var(--accent-2);background:rgba(33,212,253,.12);
  border:1px solid rgba(33,212,253,.3);padding:3px 9px;border-radius:999px;white-space:nowrap;
  cursor:pointer;flex-shrink:0}
.card-desc{color:var(--muted);font-size:13.5px;margin:12px 0 16px;position:relative;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;position:relative}
.card-go{font-size:13px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:6px}
.card-go .arrow{transition:transform .2s}
.card:hover .card-go .arrow{transform:translateX(4px)}
.card-clicks{font-size:12px;color:#6b7689}
.card-clicks b{color:#cdd6ea}

/* 关键词高亮 */
mark{background:rgba(124,92,255,.35);color:#fff;border-radius:3px;padding:0 2px}

/* ---------- 骨架屏 ---------- */
.skeleton-wrap{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px;margin-top:18px}
.sk{height:150px;border-radius:var(--radius);background:linear-gradient(100deg,
  rgba(255,255,255,.04) 30%,rgba(255,255,255,.09) 50%,rgba(255,255,255,.04) 70%);
  background-size:200% 100%;animation:shimmer 1.3s infinite}
@keyframes shimmer{from{background-position:200% 0}to{background-position:-200% 0}}

/* 哨兵 / 加载 */
.sentinel{height:40px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px}
.spinner{width:22px;height:22px;border:3px solid rgba(255,255,255,.15);
  border-top-color:var(--accent-1);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* 空状态 */
.empty{text-align:center;padding:70px 0;color:var(--muted)}
.empty-emoji{font-size:46px;margin-bottom:10px}
.empty p{font-size:18px;color:var(--text);margin:0 0 6px}
.empty span{font-size:13px}

/* ---------- 弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(4,7,14,.72);backdrop-filter:blur(4px)}
.modal-card{position:relative;width:min(560px,100%);max-height:86vh;overflow:auto;
  background:linear-gradient(180deg,#141b30,#0f1525);border:1px solid var(--card-border);
  border-radius:22px;padding:30px;box-shadow:var(--shadow);animation:pop .25s ease}
@keyframes pop{from{opacity:0;transform:scale(.96) translateY(10px)}to{opacity:1;transform:none}}
.modal-close{position:absolute;top:16px;right:16px;width:34px;height:34px;border-radius:50%;
  border:1px solid var(--card-border);background:rgba(255,255,255,.05);color:var(--muted);
  cursor:pointer;font-size:15px}
.modal-close:hover{color:var(--text)}
.modal-tag{display:inline-block;font-size:12px;color:var(--accent-2);
  background:rgba(33,212,253,.12);border:1px solid rgba(33,212,253,.3);
  padding:4px 11px;border-radius:999px;margin-bottom:12px;cursor:pointer}
.modal-title{font-size:22px;margin:0 0 14px;line-height:1.4}
.modal-desc{color:#c4cde0;font-size:15px;white-space:pre-wrap;word-break:break-word;margin:0 0 18px}
.modal-meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:22px}
.modal-meta b{color:var(--text)}
.modal-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{background:var(--accent-grad);color:#fff;font-weight:700;padding:12px 22px;
  border-radius:12px;text-align:center;transition:filter .2s;box-shadow:0 10px 30px -10px rgba(124,92,255,.6)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--card-border);color:var(--text);
  padding:12px 18px;border-radius:12px;cursor:pointer;font-size:14px}
.btn-ghost:hover{background:rgba(255,255,255,.1)}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:36px;transform:translateX(-50%) translateY(20px);
  background:rgba(20,27,48,.96);border:1px solid var(--card-border);color:var(--text);
  padding:12px 20px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;
  transition:.3s;z-index:60;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- 页脚 ---------- */
.footer{text-align:center;color:#5d6678;font-size:13px;padding:30px 20px 40px;border-top:1px solid var(--card-border)}
.footer .beian{color:var(--muted);text-decoration:none;transition:color .2s}
.footer .beian:hover{color:var(--accent-2)}
.footer .foot-sep{margin:0 8px;opacity:.5}

/* ---------- 响应式 ---------- */
@media (max-width:640px){
  .hero{padding-top:44px}
  .stats{gap:30px}
  .grid{grid-template-columns:1fr}
  .nav-links{display:none}
}

/* ============================================================
   文章站（blog）补充样式
   ============================================================ */
.article-card .card-tags{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0 4px}
.chip{font-size:11px;color:var(--accent-2);background:rgba(33,212,253,.1);
  border:1px solid rgba(33,212,253,.28);padding:3px 10px;border-radius:999px;
  cursor:pointer;transition:.2s;text-decoration:none}
.chip:hover{background:rgba(33,212,253,.2);color:#fff}
.card-date{font-size:12px;color:#6b7689}
.card-foot .card-clicks{font-size:12px;color:#6b7689}
.card-foot .card-clicks b{color:#cdd6ea}
.article-card .card-foot{margin-top:14px}

/* 详情页 */
.article-wrap{max-width:820px;padding-top:26px}
.back-link{display:inline-block;color:var(--muted);font-size:13px;margin-bottom:18px}
.back-link:hover{color:var(--text)}
.article-title{font-size:clamp(24px,4vw,36px);line-height:1.35;margin:0 0 16px;font-weight:800}
.article-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  color:var(--muted);font-size:13px;margin-bottom:22px}
.article-meta .chip{font-size:12px}

.download-box{display:flex;gap:18px;align-items:center;justify-content:space-between;
  flex-wrap:wrap;background:linear-gradient(135deg,rgba(124,92,255,.14),rgba(33,212,253,.1));
  border:1px solid rgba(124,92,255,.35);border-radius:16px;padding:18px 20px;margin:0 0 28px}
.db-left{flex:1;min-width:200px}
.db-label{font-size:12px;color:var(--muted);margin-bottom:6px}
.db-url{font-size:14px;color:var(--text);word-break:break-all;
  background:rgba(0,0,0,.2);padding:8px 12px;border-radius:10px}
.db-actions{display:flex;gap:10px;flex-shrink:0}

.article-content{font-size:16px;line-height:1.9;color:#d6deee}
.article-content h2{font-size:21px;margin:30px 0 12px;
  padding-left:12px;border-left:3px solid var(--accent-1)}
.article-content h3{font-size:18px;margin:24px 0 10px}
.article-content p{margin:0 0 16px}
.article-content ul,.article-content ol{margin:0 0 16px;padding-left:24px}
.article-content li{margin:6px 0}
.article-content strong{color:#fff}
.article-content a{color:var(--accent-2);text-decoration:underline}
.article-content img{max-width:100%;border-radius:12px;margin:10px 0}
.article-content blockquote{margin:0 0 16px;padding:12px 16px;
  border-left:3px solid var(--accent-2);background:rgba(255,255,255,.04);color:var(--muted);border-radius:0 10px 10px 0}

.related{margin:40px 0 10px}
.related-title{font-size:20px;margin:0 0 18px}
.related .grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}

@media (max-width:640px){
  .download-box{flex-direction:column;align-items:stretch}
  .db-actions{width:100%}
  .db-actions .btn-primary,.db-actions .btn-ghost{flex:1;text-align:center}
}