:root{--ink:#17231e;--muted:#76827c;--green:#245b45;--green2:#e9f2ed;--line:#e5e9e6;--paper:#f5f7f5;--white:#fff;--red:#b64949}*{box-sizing:border-box}body{margin:0;font-family:Inter,"Noto Sans SC","Hiragino Sans",sans-serif;background:var(--paper);color:var(--ink);display:flex;min-height:100vh}.sidebar{position:fixed;width:230px;height:100vh;background:#183d30;color:#fff;padding:30px 18px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:12px;padding:0 10px 30px}.brand>span{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#fff;color:#245b45;font-size:21px;font-family:serif}.brand b{font-size:18px}.brand small,.side-foot small{display:block;font-size:10px;opacity:.58;letter-spacing:1.4px;margin-top:3px}.sidebar nav{display:flex;flex-direction:column;gap:6px}.sidebar nav button{border:0;background:transparent;color:#bed0c8;text-align:left;padding:13px 15px;border-radius:9px;font-size:14px}.sidebar nav button.active{background:#2b5a47;color:#fff}.side-foot{margin-top:auto;border-top:1px solid #376052;padding:20px 8px 0;display:flex;gap:10px;align-items:center;font-size:13px}.avatar{width:36px;height:36px;background:#e8d9b8;color:#594c35;display:grid;place-items:center;border-radius:50%}main{margin-left:230px;padding:36px 42px;width:calc(100% - 230px);max-width:1600px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}h1,h2,p{margin:0}h1{font-size:27px;letter-spacing:-.5px}header p,.panel-head p,.dialog-head p{color:var(--muted);font-size:13px;margin-top:7px}.primary,.secondary,.danger{border:0;border-radius:8px;padding:11px 17px;font-weight:650;cursor:pointer}.primary{background:var(--green);color:#fff;box-shadow:0 3px 8px #245b4533}.secondary{background:#edf0ee;color:#47534d}.danger{background:#fae9e9;color:var(--red)}.cards{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:20px}.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:19px}.card-top{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.card-icon{width:29px;height:29px;border-radius:8px;background:var(--green2);color:var(--green);display:grid;place-items:center}.card strong{display:block;font-size:26px;margin-top:11px}.card small{color:var(--muted)}.card.alert strong{color:var(--red)}.panel{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}.panel-head{display:flex;justify-content:space-between;align-items:center;padding:22px 24px;border-bottom:1px solid var(--line)}.panel-head h2,.dialog-head h2{font-size:18px}.tools{display:flex;gap:8px}.tools input,.tools select,label input,label select,label textarea{border:1px solid #dce2de;border-radius:8px;background:#fff;padding:10px 12px;color:var(--ink);outline:none}.tools input{width:230px}.tools input:focus,label input:focus,label textarea:focus{border-color:#6e9787;box-shadow:0 0 0 3px #dfece6}table{border-collapse:collapse;width:100%;font-size:13px}th{text-align:left;color:#7b8680;font-size:11px;font-weight:650;background:#fafbfa;padding:12px 20px}td{border-top:1px solid #edf0ee;padding:14px 20px;vertical-align:middle}.student{display:flex;align-items:center;gap:11px}.student-avatar{width:38px;height:38px;border-radius:10px;background:#e8f0eb;color:#245b45;display:grid;place-items:center;font-weight:700}.student b,.student small{display:block}.student small,.subtle{color:var(--muted);font-size:11px;margin-top:3px}.rate{display:flex;align-items:center;gap:8px}.bar{width:58px;height:5px;border-radius:6px;background:#e9ecea;overflow:hidden}.bar i{display:block;height:100%;background:#4b8a70}.low{color:var(--red)}.status{display:inline-block;padding:5px 9px;border-radius:20px;background:#eaf4ef;color:#28704f;font-size:11px}.status.休学{background:#fff2da;color:#9b6816}.status.毕业{background:#edf0f5;color:#667085}.row-action{border:0;background:transparent;cursor:pointer;font-size:19px;color:#78847e}.empty{text-align:center;padding:40px;color:var(--muted);display:none}dialog{border:0;border-radius:15px;padding:0;width:min(700px,92vw);box-shadow:0 24px 70px #14221c55}dialog::backdrop{background:#14221c99;backdrop-filter:blur(2px)}dialog form{padding:26px}.dialog-head{display:flex;justify-content:space-between}.icon{border:0;background:#edf0ee;width:32px;height:32px;border-radius:50%;font-size:20px;cursor:pointer}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:22px}label{font-size:12px;color:#5d6862;font-weight:600}label input,label select,label textarea{display:block;width:100%;margin-top:7px;font:inherit;font-weight:400}.full{grid-column:1/-1}.dialog-actions{display:flex;gap:10px;margin-top:22px}.dialog-actions span{flex:1}.hidden{display:none}.detail-dialog{width:min(780px,92vw)}.detail-top{padding:25px;background:#eef5f1;display:flex;justify-content:space-between}.detail-name{display:flex;gap:14px;align-items:center}.detail-name .student-avatar{width:53px;height:53px;font-size:18px;background:#245b45;color:#fff}.detail-body{padding:25px}.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.info{background:#f7f9f8;border-radius:9px;padding:13px}.info small{color:var(--muted);display:block;margin-bottom:5px}.section-title{font-size:14px;margin:24px 0 11px}.record{border:1px solid var(--line);border-radius:9px;padding:13px;margin-top:8px;display:flex;justify-content:space-between}.feedback{background:#fff9ed;border-left:3px solid #d7a94e;padding:14px;line-height:1.7;font-size:13px;border-radius:0 8px 8px 0}#toast{position:fixed;right:28px;bottom:25px;background:#1f352c;color:#fff;padding:12px 18px;border-radius:9px;opacity:0;transform:translateY(10px);transition:.2s;pointer-events:none}#toast.show{opacity:1;transform:none}@media(max-width:1050px){.cards{grid-template-columns:repeat(2,1fr)}.sidebar{width:82px}.brand div,.sidebar nav button:not(.active),.side-foot div:not(.avatar){display:none}.brand{padding-left:2px}.sidebar nav button.active{font-size:0}.sidebar nav button.active:first-letter{font-size:20px}main{margin-left:82px;width:calc(100% - 82px);padding:28px}.detail-grid{grid-template-columns:1fr 1fr}}@media(max-width:700px){.sidebar{display:none}main{margin:0;width:100%;padding:18px}.cards{grid-template-columns:1fr 1fr}.panel-head{align-items:flex-start;gap:15px;flex-direction:column}.tools,.tools input{width:100%}.table-wrap{overflow:auto}th,td{padding:12px}.form-grid{grid-template-columns:1fr}.full{grid-column:auto}.detail-grid{grid-template-columns:1fr}}