:root{--ink:#12233f;--muted:#627087;--blue:#315fe8;--sky:#eaf0ff;--gold:#e5a84b;--paper:#f6f8fc;--line:#e3e8f0;--green:#15a477;--danger:#d9534f}*{box-sizing:border-box}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper)}button,input,textarea,select{font:inherit}.hidden{display:none!important}.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--blue);font-weight:800;text-transform:uppercase}em{font-style:normal;color:var(--blue)}button{border:0;cursor:pointer}.primary{background:var(--blue);color:#fff;border-radius:12px;padding:13px 20px;font-weight:700;box-shadow:0 8px 20px #315fe833}.ghost{background:#fff;border:1px solid var(--line);padding:11px 17px;border-radius:11px;color:var(--ink)}.login-shell{min-height:100vh;display:grid;grid-template-columns:1.2fr .8fr;align-items:center;padding:7vw;background:radial-gradient(circle at 15% 15%,#eef4ff,transparent 42%),linear-gradient(135deg,#f9fbff,#edf2fa)}.login-copy{max-width:720px}.login-copy h1,.hero h1{font-size:clamp(38px,5vw,68px);line-height:1.12;margin:18px 0}.login-copy p,.hero p{font-size:18px;line-height:1.9;color:var(--muted);max-width:720px}.promise{display:flex;gap:22px;flex-wrap:wrap;color:#3c5173;margin-top:28px}.login-card{background:#fff;border:1px solid #fff;border-radius:24px;padding:36px;box-shadow:0 28px 90px #3051781f;max-width:440px;width:100%;justify-self:end}.brand{display:flex;align-items:center;gap:12px;margin-bottom:28px}.brand>span{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,var(--blue),#183789);color:white;font-weight:900}.brand strong,.brand small{display:block}.brand small{color:var(--muted);margin-top:4px}.login-card label,.generator-card label{display:block;font-size:14px;font-weight:700;margin:18px 0}.login-card input,.generator-card input,.generator-card textarea,.generator-card select,.search input{display:block;width:100%;margin-top:8px;border:1px solid var(--line);border-radius:11px;padding:13px 14px;background:#fbfcff;outline:none}.login-card input:focus,.generator-card input:focus,.generator-card textarea:focus,.search input:focus{border-color:var(--blue);box-shadow:0 0 0 3px #315fe818}.login-card button{width:100%;margin-top:12px}.muted{font-size:12px;line-height:1.7;color:var(--muted)}.app{min-height:100vh;display:grid;grid-template-columns:244px 1fr}aside{position:fixed;width:244px;height:100vh;background:#11213d;color:white;padding:28px 20px;display:flex;flex-direction:column;z-index:10}.side-brand{margin-left:8px}.side-brand small{color:#a8b5cc}nav{display:grid;gap:6px}nav button{background:transparent;color:#b9c4d7;text-align:left;padding:13px 16px;border-radius:10px}nav button.active,nav button:hover{background:#ffffff16;color:#fff}.side-foot{margin-top:auto;display:grid;gap:12px}.side-foot a{color:#dbe5ff;text-decoration:none;background:#ffffff10;padding:13px;border-radius:10px;font-size:13px}.text-btn{background:transparent;color:#95a5be;text-align:left}.app main{grid-column:2;min-width:0}header{height:88px;padding:18px 4vw;display:flex;align-items:center;justify-content:space-between;background:#ffffffdd;backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}header h2{font-size:20px;margin:4px 0}.user{display:flex;gap:10px;align-items:center}.user>span{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--blue);font-weight:800}.user strong,.user small{display:block}.user small{color:var(--muted);font-size:11px;margin-top:3px}.menu{display:none}.view{display:none;padding:38px 4vw 70px;max-width:1500px;margin:auto}.view.active{display:block}.hero{background:linear-gradient(135deg,#fff,#eef3ff);border:1px solid #e5ebf7;border-radius:26px;padding:54px;display:grid;grid-template-columns:1fr 240px;align-items:center;overflow:hidden;position:relative}.hero h1{font-size:clamp(34px,4vw,56px)}.hero-ring{width:210px;height:210px;border:24px solid #dae4ff;border-right-color:var(--blue);border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(-10deg)}.hero-ring>*{transform:rotate(10deg)}.hero-ring b{font-size:64px;line-height:1;color:var(--blue)}.hero-ring span{font-weight:800}.hero-ring i{font-size:11px;color:var(--muted);margin-top:7px}.logic-strip{display:flex;justify-content:center;align-items:center;gap:15px;margin:24px 0 38px;padding:17px;background:#fff;border:1px solid var(--line);border-radius:14px;font-size:13px}.logic-strip span{color:var(--gold)}.system-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.system-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px;position:relative;overflow:hidden}.system-card:before{content:"";position:absolute;left:0;top:0;width:5px;height:100%;background:var(--accent,var(--blue))}.system-card .num{font-size:12px;font-weight:900;color:var(--accent,var(--blue))}.system-card h3{font-size:20px;line-height:1.4}.system-card p{color:var(--muted);line-height:1.7;min-height:82px}.system-card button{background:transparent;color:var(--accent,var(--blue));padding:0;font-weight:800}.section-head{display:flex;justify-content:space-between;align-items:end;margin:42px 0 20px;gap:20px}.section-head h3{font-size:27px;margin:7px 0}.section-head p{color:var(--muted);margin:4px 0}.recent,.systems-list{display:grid;gap:12px}.empty{background:#fff;border:1px dashed #cbd4e3;border-radius:15px;padding:35px;text-align:center;color:var(--muted)}.learning-row{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}.learning-row h4{margin:0 0 7px}.learning-row p{margin:0;color:var(--muted);font-size:13px}.tag{display:inline-block;border-radius:99px;background:var(--sky);color:var(--blue);font-size:11px;padding:5px 9px;margin-right:8px}.kind-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:25px 0}.kind{padding:22px;background:#fff;border:2px solid transparent;border-radius:16px;text-align:left}.kind.active{border-color:var(--blue);background:#f7f9ff}.kind b{display:block;margin-bottom:8px}.kind small{color:var(--muted);line-height:1.55}.generator-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}.generator-card .full{grid-column:1/-1}.generator-card textarea{min-height:105px;resize:vertical}.form-actions{display:flex;justify-content:flex-end;gap:12px;border-top:1px solid var(--line);padding-top:22px;margin-top:22px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.stat b{font-size:28px;display:block}.stat small{color:var(--muted)}.search{display:flex;gap:10px;margin:22px 0}.search input{margin:0}.catalog{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.catalog-row{display:grid;grid-template-columns:1fr auto;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line)}.catalog-row:last-child{border:0}.catalog-row small{color:var(--muted)}.architecture{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.architecture article{background:#fff;border:1px solid var(--line);border-radius:17px;padding:25px}.architecture article>b{color:var(--blue);font-size:32px}.architecture h4{font-size:18px}.architecture p{color:var(--muted);line-height:1.8}.back{background:transparent;color:var(--blue);padding:0 0 18px}.detail-hero{background:#10213d;color:#fff;border-radius:22px;padding:35px}.detail-hero p{color:#b7c5dc}.progress{height:9px;border-radius:9px;background:#ffffff1c;overflow:hidden;margin-top:20px}.progress i{display:block;height:100%;background:#5e82ff}.profile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0}.profile-grid div{background:#fff;border:1px solid var(--line);padding:15px;border-radius:12px}.profile-grid small,.step-card small{color:var(--muted);display:block;margin-bottom:5px}.step-layout{display:grid;grid-template-columns:250px 1fr;gap:18px}.step-nav{display:grid;gap:8px;align-content:start;position:sticky;top:110px}.step-nav button{text-align:left;background:#fff;border:1px solid var(--line);padding:14px;border-radius:11px}.step-nav button.active{border-color:var(--blue);color:var(--blue)}.step-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:27px}.step-card h3{font-size:25px}.step-card h4{margin:24px 0 10px}.step-card li{margin:9px 0;line-height:1.55}.step-card textarea{width:100%;min-height:90px;border:1px solid var(--line);border-radius:10px;padding:12px}.step-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.toast{position:fixed;right:25px;top:25px;z-index:99;background:#152641;color:#fff;padding:13px 18px;border-radius:10px;transform:translateY(-100px);transition:.25s}.toast.show{transform:none}.toast.error{background:var(--danger)}@media(max-width:900px){.login-shell{grid-template-columns:1fr;padding:28px}.login-copy{display:none}.login-card{justify-self:center}.app{display:block}.app main{display:block}aside{transform:translateX(-100%);transition:.25s}aside.open{transform:none}.menu{display:block;background:transparent;font-size:22px}header{padding:14px 20px}.view{padding:25px 18px}.hero{grid-template-columns:1fr;padding:30px}.hero-ring{display:none}.system-grid,.kind-picker,.architecture{grid-template-columns:1fr}.logic-strip{overflow:auto;justify-content:flex-start}.form-grid,.profile-grid{grid-template-columns:1fr}.step-layout{grid-template-columns:1fr}.step-nav{position:static;grid-template-columns:repeat(5,minmax(145px,1fr));overflow:auto}.stats{grid-template-columns:1fr 1fr}.user div{display:none}}