:root{
  --blue:#1877f2;
  --blue2:#0866ff;
  --bg:#f5f7fb;
  --card:#fff;
  --text:#1c1e21;
  --muted:#65676b;
  --line:#e7e9ef;
  --hover:#f0f2f5;
  --soft:#f0f2f5;
  --shadow:0 1px 2px rgba(0,0,0,.08),0 8px 24px rgba(15,23,42,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,#fbfcff 0,#f5f7fb 260px,#f0f2f5 100%);color:var(--text);font-family:Inter,"Segoe UI",Roboto,Arial,Helvetica,sans-serif;font-size:15px}a{text-decoration:none;color:inherit}img{display:block;max-width:100%}
.topbar{height:64px;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);position:sticky;top:0;z-index:1000;display:grid;grid-template-columns:auto 260px 1fr auto;align-items:center;gap:16px;padding:0 22px;border-bottom:1px solid rgba(218,221,225,.8);box-shadow:0 2px 12px rgba(15,23,42,.08)}
.logo{font-size:34px;line-height:1;font-weight:900;color:var(--blue2);letter-spacing:-2px;text-transform:lowercase}.search{height:40px;background:#f0f2f5;border-radius:999px;display:flex;align-items:center;gap:9px;padding:0 15px;color:#606770}.search span{font-size:22px;line-height:0}.search input{border:0;background:transparent;outline:0;width:100%;font-size:14px;color:#444}
.nav{display:flex;justify-content:center;gap:8px;height:64px}.nav a{height:64px;min-width:82px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;border-radius:0;font-size:24px;color:#111827;position:relative;transition:.15s}.nav small{font-size:11px;font-weight:700}.nav a:hover{background:#f3f4f7}.nav .active{color:var(--blue2)}.nav .active:after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:4px;background:var(--blue2)}
.actions{display:flex;align-items:center;gap:9px}.circle{width:42px;height:42px;border-radius:50%;background:#eef0f4;display:grid;place-items:center;font-weight:900;color:#111827;transition:.15s}.circle:hover{background:#e4e6eb;transform:translateY(-1px)}.user{display:flex;gap:8px;align-items:center;font-weight:800;color:#1f2937;padding:4px 8px;border-radius:999px}.user:hover{background:#f0f2f5}.user img,.profile img,.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 1px rgba(0,0,0,.04)}.btn,.primary{background:var(--blue2);color:#fff!important;border:0;border-radius:10px;padding:10px 14px;font-weight:800;cursor:pointer;box-shadow:0 8px 18px rgba(24,119,242,.22)}.ghost{background:#e7f3ff;color:var(--blue)!important}
.shell{max-width:1660px;margin:0 auto;padding:22px 20px 28px;display:grid;grid-template-columns:275px minmax(520px,735px) 360px;gap:28px}.left,.right{position:sticky;top:84px;height:calc(100vh - 90px);overflow:auto;scrollbar-width:thin}.left{padding-right:4px}.profile,.side,.shortcut{display:flex;align-items:center;gap:13px;padding:10px;border-radius:12px;font-weight:800;color:#2d3440;transition:.15s}.profile:hover,.side:hover,.shortcut:hover{background:#e9edf3}.profile small,.shortcut small{display:block;color:var(--muted);font-size:12px;font-weight:500;margin-top:2px}.side i{width:28px;text-align:center;color:#1b74e4;font-size:21px;font-style:normal}.left h4{color:#4b5563;margin:22px 10px 10px;font-size:15px;border-top:1px solid #dddfe4;padding-top:16px}.shortcut img{width:40px;height:40px;border-radius:9px;object-fit:cover}
.card,.composer,.post{background:rgba(255,255,255,.96);border:1px solid #edf0f5;border-radius:10px;box-shadow:var(--shadow);margin-bottom:16px}.card{padding:16px}.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.card h3,.card-head h3{margin:0;font-size:16px}.card p{margin:8px 0;color:#374151;line-height:1.35}.card a,.blue{color:var(--blue2);font-weight:800}.mini-row,.song-row,.chatline{display:flex;gap:12px;align-items:center;padding:9px 0}.mini-row img,.song-row img,.chatline img{width:48px;height:48px;border-radius:12px;object-fit:cover}.chatline img{border-radius:50%}.mini-row small,.song-row small,.chatline small{display:block;color:var(--muted);font-size:12px}.mini-row button{border:0;border-radius:8px;background:#eef4ff;color:var(--blue2);font-weight:800;padding:6px 13px;margin-top:5px}.fakebar{height:4px;background:#e3e6ec;border-radius:999px;overflow:hidden;margin-top:10px}.fakebar span{display:block;width:45%;height:100%;background:var(--blue2)}.controls{text-align:center;font-size:22px;margin-top:10px;color:#111827}
.stories{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:18px}.story{height:226px;border-radius:9px;overflow:hidden;position:relative;background:#fff;border:1px solid #e6e8ee;box-shadow:var(--shadow);transition:.18s}.story:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(15,23,42,.12)}.story img{width:100%;height:100%;object-fit:cover;transition:.25s}.story:hover img{transform:scale(1.035)}.story:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.08) 0,rgba(0,0,0,.05) 45%,rgba(0,0,0,.75) 100%)}.story strong{position:absolute;z-index:2;left:12px;right:10px;bottom:13px;color:#fff;font-size:14px;line-height:1.22;text-shadow:0 1px 2px rgba(0,0,0,.6)}.story:first-child:before{content:"+";position:absolute;z-index:3;left:50%;bottom:42px;transform:translateX(-50%);width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--blue2);color:#fff;border:4px solid #fff;font-size:30px;font-weight:700}.story:first-child img{height:73%;object-fit:cover}.story:first-child:after{background:linear-gradient(180deg,rgba(0,0,0,.03),rgba(0,0,0,.18) 70%,#fff 70%,#fff 100%)}.story:first-child strong{color:#111827;text-shadow:none;text-align:center;bottom:15px;font-size:13px}
.composer-top{display:flex;gap:12px;align-items:center;padding:13px 16px;border-bottom:1px solid var(--line)}.composer-top input{flex:1;border:0;background:#f0f2f5;border-radius:999px;padding:13px 18px;outline:0;font-size:16px;color:#4b5563}.composer-actions{display:grid;grid-template-columns:repeat(3,1fr);padding:8px 12px}.composer-actions button{height:42px;border:0;background:#fff;border-radius:8px;font-weight:800;color:#4b5563;cursor:pointer}.composer-actions button:hover{background:var(--hover)}
.post{overflow:hidden}.post-head{display:flex;gap:12px;align-items:center;padding:14px 16px}.post-head .meta{flex:1}.post-head span{display:block;color:var(--muted);font-size:13px;margin-top:2px}.post-head b:last-child{letter-spacing:1px;color:#4b5563}.post-text{padding:0 16px 12px;font-size:17px;line-height:1.35}.post-img{width:100%;max-height:650px;object-fit:cover;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.post-stats{display:flex;justify-content:space-between;color:var(--muted);font-size:14px;padding:11px 16px;border-bottom:1px solid var(--line)}.post-actions{display:grid;grid-template-columns:repeat(3,1fr);padding:4px 12px;border-bottom:1px solid var(--line)}.post-actions button{height:42px;border:0;background:#fff;border-radius:8px;font-weight:800;color:#555b66;cursor:pointer}.post-actions button:hover{background:var(--hover)}.post-actions button:first-child{color:var(--blue2)}
.comment{display:flex;gap:10px;padding:10px 16px 0}.comment .avatar{width:34px;height:34px}.bubble{background:#f0f2f5;border-radius:18px;padding:9px 13px;font-size:14px;color:#1f2937}.comment-form{display:flex;gap:10px;padding:10px 16px 14px}.comment-form .avatar{width:34px;height:34px}.comment-form input{flex:1;border:0;background:#f0f2f5;border-radius:999px;padding:12px 16px;outline:0}.comment-form button{border:0;border-radius:999px;background:var(--blue2);color:#fff;padding:0 16px;font-weight:800}
.auth{max-width:430px;margin:60px auto;background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:24px}.auth h1{color:var(--blue2)}.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);border-radius:10px;padding:13px;margin:8px 0;font-size:15px}.form button{width:100%;margin-top:10px}
.chat-pop{position:fixed;right:24px;bottom:0;width:340px;background:#fff;border-radius:12px 12px 0 0;box-shadow:0 8px 30px rgba(15,23,42,.25);overflow:hidden;z-index:1600;border:1px solid #d9dde6}.chat-head{height:46px;background:var(--blue2);color:#fff;display:flex;gap:9px;align-items:center;padding:0 12px;font-weight:800}.chat-body{height:240px;overflow:auto;padding:12px;background:#fff}.msg{max-width:78%;width:max-content;background:#f0f2f5;border-radius:16px;padding:9px 11px;margin:7px 0;font-size:13px}.msg.me{margin-left:auto;background:var(--blue2);color:#fff}.msg small{display:block;font-size:10px;opacity:.75;margin-top:3px}.chat-input{display:flex;gap:7px;padding:10px;border-top:1px solid var(--line)}.chat-input input{flex:1;border:0;background:#f0f2f5;border-radius:999px;padding:10px;outline:0}.chat-input button{border:0;border-radius:50%;width:40px;background:var(--blue2);color:#fff;cursor:pointer}
.music-layout{max-width:1600px;margin:0 auto;padding:22px 20px 110px;display:grid;grid-template-columns:260px 1fr;gap:24px}.music-side{position:sticky;top:84px;height:calc(100vh - 90px);overflow:auto}.music-main{min-width:0}.music-hero{background:linear-gradient(135deg,#1877f2,#6d28d9);color:#fff;border-radius:18px;padding:42px;margin-bottom:18px;box-shadow:var(--shadow)}.music-hero h1{font-size:48px;margin:0 0 10px}.album-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px}.album-card{background:#fff;border-radius:14px;box-shadow:var(--shadow);overflow:hidden}.album-card img{width:100%;aspect-ratio:1/1;object-fit:cover}.album-card div{padding:12px}.track{display:grid;grid-template-columns:44px 56px 1fr auto;gap:12px;align-items:center;border-bottom:1px solid var(--line);padding:10px}.track img{width:56px;height:56px;border-radius:8px;object-fit:cover}.track button{width:42px;height:42px;border:0;border-radius:50%;background:var(--blue2);color:#fff;cursor:pointer}.player{position:fixed;left:0;right:0;bottom:0;height:82px;background:#fff;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:12px 24px;z-index:1500}.player img{width:56px;height:56px;border-radius:8px;object-fit:cover}.now{display:flex;align-items:center;gap:12px}.player button{border:0;border-radius:50%;width:46px;height:46px;background:#f0f2f5;cursor:pointer}.player button.main{background:var(--blue2);color:#fff}.upload-box{background:#fff;border-radius:14px;box-shadow:var(--shadow);padding:16px;margin-bottom:18px}.progress{height:10px;background:#e4e6eb;border-radius:999px;overflow:hidden;margin-top:8px}.progress span{display:block;width:0;height:100%;background:var(--blue2)}.upload-row{padding:10px;border:1px solid var(--line);border-radius:10px;margin-top:10px}.upload-row.done{border-color:#31a24c;background:#f0fff4}.upload-row.done small{color:#31a24c;font-weight:800}
.dashboard{max-width:1500px;margin:0 auto;padding:24px}.dash-hero,.panel,.stat{background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:22px;margin-bottom:16px}.dash-hero h1{color:var(--blue2);font-size:36px}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.stat b{font-size:34px;display:block}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.table-row{display:grid;grid-template-columns:60px 1fr auto;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding:10px}.table-row img{width:56px;height:56px;border-radius:8px;object-fit:cover}
@media(max-width:1300px){.shell{grid-template-columns:84px minmax(460px,1fr) 320px;gap:18px}.left span,.left h4{display:none}.stories{grid-template-columns:repeat(4,1fr)}.topbar{grid-template-columns:auto 220px 1fr auto}.nav a{min-width:66px}}
@media(max-width:980px){.shell,.music-layout,.admin-grid{grid-template-columns:1fr}.left,.right{display:none}.nav{display:none}.topbar{display:flex}.search{min-width:0;flex:1}.stories{grid-template-columns:repeat(3,1fr)}.chat-pop{display:none}.music-side{position:static;height:auto;display:flex;gap:8px;overflow:auto}.side{min-width:max-content}}
@media(max-width:560px){.topbar{padding:0 10px}.logo{font-size:28px}.shell,.music-layout{padding:12px}.stories{grid-template-columns:repeat(2,1fr)}.story{height:205px}.music-hero h1{font-size:34px}.actions .user span{display:none}}