:root{--ink:#183a34;--muted:#6f7f77;--green:#17694d;--lime:#d5ed9e;--line:#e1e7df;--paper:#f7f8f2;--white:#fff;--radius:18px}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.7 'Segoe UI','Microsoft YaHei',sans-serif}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,textarea,select{outline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}header{height:88px;max-width:1440px;margin:auto;padding:0 5%;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{font-weight:750;font-size:22px;display:flex;align-items:center;gap:10px;white-space:nowrap}.brand-icon{background:var(--green);color:var(--lime);height:38px;width:38px;border-radius:11px;display:grid;place-items:center;font-size:29px}nav{display:flex;gap:30px;align-items:center;font-size:14px}nav a{color:var(--muted)}nav 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h2{color:var(--ink)}.progress{height:4px;background:#e6ede1;border-radius:5px;overflow:hidden;margin-top:14px}.progress span{display:block;height:100%;background:var(--green)}label{display:block;font-size:13px;font-weight:600;margin:14px 0 5px}input,textarea,select{width:100%;border:1px solid #ccd6c8;border-radius:8px;padding:10px 12px;background:white;color:var(--ink)}textarea{min-height:90px;resize:vertical}input[type=checkbox]{width:auto}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}.form-actions{display:flex;gap:10px;margin-top:24px}dialog{border:1px solid var(--line);border-radius:18px;max-width:680px;width:calc(100% - 32px);padding:32px;color:var(--ink);box-shadow:0 24px 80px #15352733}dialog::backdrop{background:#12281d66;backdrop-filter:blur(4px)}dialog h2{margin-top:0}.modal-close{position:absolute;right:12px;top:8px;background:none;border:0;font-size:26px;color:var(--muted)}#toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;padding:12px 24px;border-radius:10px;z-index:20;max-width:90%;display:none}.error{color:#9e3e32;font-size:13px;min-height:22px}.tabs{display:flex;gap:10px;flex-wrap:wrap;margin:25px 0}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px;text-align:left}th{color:var(--muted);font-size:12px;font-weight:500}td,th{padding:15px 12px;border-bottom:1px solid var(--line);vertical-align:top}td .btn{margin:2px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.stat{padding:22px;background:white;border:1px solid var(--line);border-radius:12px}.stat b{display:block;font-size:26px}.stat 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@media(max-width:600px){.hero{grid-template-columns:1fr;padding-top:32px}.hero h1{font-size:42px}.hero-art{aspect-ratio:1.6}.hero-caption{margin-top:14px}.principles{grid-template-columns:1fr;gap:14px;padding:20px 0;margin-bottom:30px}.principles>div{border:0}.principles small{font-size:12px}.section-head{align-items:start;flex-direction:column}.search,.search input{width:100%}.grid{grid-template-columns:1fr}.cover{height:220px}.hero-actions{gap:12px}.learning-banner{padding:24px;flex-direction:column;align-items:start}.detail-hero,.two-col{grid-template-columns:1fr}.detail-hero{gap:20px}.detail-hero h1{font-size:28px}.detail-hero .cover{height:190px}.panel{padding:19px}.field-row{grid-template-columns:1fr;gap:0}footer span{display:none}nav{font-size:12px;gap:20px}.brand{font-size:19px}#account{font-size:11px}.toolbar{align-items:start;gap:12px;flex-wrap:wrap}.stats{gap:10px}.stat{padding:15px}dialog{padding:25px}}