:root{color-scheme:light;--brand:#1769e0;--ink:#18202c;--muted:#667085;--line:#e4e8ef;--surface:#f5f7fa}*{box-sizing:border-box}body,html{margin:0;min-height:100%}body{background:var(--surface);color:var(--ink);font-family:Arial,Noto Sans,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.shell{margin:0 auto;max-width:1180px;padding:0 20px}.topbar{background:hsla(0,0%,100%,.92);border-bottom:1px solid rgba(228,232,239,.9);position:-webkit-sticky;position:sticky;top:0;z-index:10;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.topbar-inner{align-items:center;display:flex;gap:24px;height:72px;justify-content:space-between}.brand{align-items:baseline;color:var(--brand);display:inline-flex;font-size:25px;font-weight:900;gap:7px;letter-spacing:-.045em}.brand small{background:#eaf2ff;border-radius:999px;font-size:10px;letter-spacing:.04em;padding:5px 8px;text-transform:uppercase}.nav{display:flex;gap:18px}.nav a{color:var(--muted);font-size:14px}.button,.nav a{font-weight:800}.button{align-items:center;background:var(--brand);border:0;border-radius:14px;color:#fff;cursor:pointer;display:inline-flex;justify-content:center;min-height:44px;padding:0 18px;transition:transform .18s ease,box-shadow .18s ease}.button:hover{box-shadow:0 10px 24px rgba(23,105,224,.2);transform:translateY(-1px)}.hero{align-items:center;background:linear-gradient(125deg,#0b1730,#10469c 52%,#2177ed);border-radius:32px;color:#fff;display:grid;grid-template-columns:minmax(0,1fr) 220px;margin:28px 0 18px;min-height:310px;overflow:hidden;padding:42px 48px;position:relative}.hero:after,.hero:before{border:1px solid hsla(0,0%,100%,.12);border-radius:999px;content:"";position:absolute}.hero:before{height:320px;right:-100px;top:-150px;width:320px}.hero:after{bottom:-170px;height:300px;right:70px;width:300px}.hero-copy{position:relative;z-index:1}.hero-kicker{align-items:center;color:#cfe3ff;display:inline-flex;font-size:11px;font-weight:900;gap:8px;letter-spacing:.14em}.hero-kicker i{background:#79b2ff;border-radius:999px;height:7px;width:7px}.hero h1{font-size:clamp(38px,5vw,58px);letter-spacing:-.055em;line-height:1.04;margin:16px 0}.hero h1 em{color:#91beff;font-style:normal}.hero p{color:#d7e7ff;font-size:15px;line-height:1.7;margin:0;max-width:520px}.hero-mark{align-items:center;background:hsla(0,0%,100%,.1);border:1px solid hsla(0,0%,100%,.15);border-radius:28px;display:flex;flex-direction:column;height:180px;justify-content:center;position:relative;transform:rotate(3deg);z-index:1}.hero-mark span{font-size:76px;font-weight:900;letter-spacing:-.1em;line-height:1}.hero-mark small{color:#cfe3ff;font-size:9px;font-weight:900;letter-spacing:.16em;margin-top:12px}.categories{display:flex;gap:5px;margin:0 -4px 22px;overflow-x:auto;padding:4px;scrollbar-width:none}.categories::-webkit-scrollbar{display:none}.categories a{background:transparent;border:0;border-radius:14px;color:var(--muted);font-size:13px;font-weight:800;padding:11px 15px;transition:background .18s ease,color .18s ease;white-space:nowrap}.categories a:hover{background:#fff;color:var(--ink)}.categories a.active{background:#fff;box-shadow:0 7px 22px rgba(23,52,94,.08);color:var(--brand)}.grid{display:grid;grid-gap:20px;gap:20px;grid-template-columns:repeat(3,minmax(0,1fr));padding-bottom:60px}.card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.2s}.card:hover{box-shadow:0 16px 40px rgba(20,50,100,.1);transform:translateY(-3px)}.cover{aspect-ratio:16/9;background:#eaf2ff;display:grid;overflow:hidden;place-items:center}.cover img{height:100%;object-fit:cover;width:100%}.card-body{padding:17px}.card h2{font-size:18px;line-height:1.4;margin:7px 0}.meta{color:var(--muted);font-size:12px;font-weight:700}.empty{align-items:center;background:linear-gradient(145deg,#fff,#f9fbff);border:1px solid rgba(228,232,239,.9);border-radius:30px;box-shadow:0 18px 50px rgba(23,52,94,.055);display:flex;flex-direction:column;min-height:330px;padding:54px 24px;text-align:center}.empty-icon{align-items:center;background:#eaf2ff;border-radius:22px;color:var(--brand);display:inline-flex;height:70px;justify-content:center;margin-bottom:18px;transform:rotate(-3deg);width:70px}.empty-icon svg{fill:none;height:32px;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7;width:32px}.empty-kicker{color:var(--brand);font-size:10px;font-weight:900;letter-spacing:.16em}.empty h2{font-size:25px;letter-spacing:-.035em;margin:10px 0 0}.empty p{color:var(--muted);font-size:14px;line-height:1.6;margin:10px 0 0}.empty-actions{display:flex;gap:10px;justify-content:center;margin-top:24px}.empty-actions .secondary{background:#fff;color:var(--ink)}.article{background:#fff;border:1px solid var(--line);border-radius:28px;margin:28px auto 60px;max-width:900px;overflow:hidden}.article-cover{max-height:480px;object-fit:cover;width:100%}.article-body{padding:28px clamp(22px,6vw,64px) 50px}.article h1{font-size:clamp(30px,5vw,48px);line-height:1.2}.article-content{font-size:17px;line-height:1.9;white-space:pre-wrap}.workspace{display:grid;grid-gap:20px;gap:20px;grid-template-columns:minmax(0,1fr) 320px;padding:28px 0 60px}.panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px}.form{display:grid;grid-gap:16px;gap:16px}.form label{display:grid;font-size:13px;font-weight:800;grid-gap:7px;gap:7px}.form input,.form textarea{background:var(--surface);border:1px solid var(--line);border-radius:10px;outline:0;padding:13px}.password-field{display:grid;grid-template-columns:minmax(0,1fr) auto}.password-field input{border-radius:10px 0 0 10px;min-width:0}.password-field button{background:#fff;border:1px solid var(--line);border-left:0;border-radius:0 10px 10px 0;color:var(--brand);cursor:pointer;font-size:12px;font-weight:800;padding:0 14px}.form textarea{min-height:300px;resize:vertical}.actions{display:flex;gap:10px;margin-top:18px}.secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}.notice{border-radius:10px;font-weight:700;padding:12px}.error{background:#fff0f0;color:#b42318}.success{background:#ecfdf3;color:#067647}.item{background:#fff;border:1px solid var(--line);border-radius:12px;cursor:pointer;display:grid;grid-gap:5px;gap:5px;margin-top:10px;padding:13px;text-align:left;width:100%}@media (max-width:800px){.grid{grid-template-columns:1fr 1fr}.workspace{grid-template-columns:1fr}}@media (max-width:540px){.shell{padding:0 16px}.topbar .shell{padding:0 18px}.topbar-inner{height:66px}.brand{font-size:22px}.brand small{font-size:9px}.header-action{border-radius:12px;font-size:12px;min-height:40px;padding:0 14px}.grid{grid-template-columns:1fr}.hero{border-radius:28px;display:block;margin-top:18px;min-height:280px;padding:32px 26px}.hero h1{font-size:39px;margin:18px 0 14px}.hero p{font-size:14px}.hero-mark{bottom:22px;height:82px;position:absolute;right:22px;transform:rotate(4deg);width:82px}.hero-mark span{font-size:38px}.hero-mark small{display:none}.categories{margin-bottom:16px}.empty{border-radius:26px;min-height:300px;padding:38px 20px}.empty h2{font-size:22px}.empty-actions{flex-direction:column;width:100%}.empty-actions .button{width:100%}.nav{display:none}}