:root { --ink:#172437; --muted:#61708a; --line:#dbe3ee; --wash:#f4f7fb; --teal:#155360; --teal-dark:#123f4a; --blue:#2864d7; --green:#16784b; --orange:#bd6d16; --danger:#bf4545; --card:#fff; font-family:"Microsoft YaHei", "PingFang SC", sans-serif; color:var(--ink); background:var(--wash); }
* { box-sizing:border-box; }
body { margin:0; min-width:320px; background:var(--wash); }
button,input,textarea,select { font:inherit; }
button { cursor:pointer; }
.page-shell { min-height:100vh; padding-bottom:210px; }
.topbar { height:72px; display:flex; align-items:center; justify-content:space-between; padding:0 max(24px, calc((100vw - 1400px)/2)); background:#fff; border-bottom:1px solid var(--line); }
.brand { display:flex; gap:10px; align-items:center; color:var(--ink); text-decoration:none; }.brand-mark { display:grid; place-items:center; width:34px; height:34px; border-radius:10px; color:#fff; font-weight:800; background:linear-gradient(135deg,#1c89ec,#2d58ce); }.brand strong,.brand small{display:block}.brand small{color:var(--muted);font-size:12px;margin-top:2px}.topbar nav{display:flex;gap:20px}.topbar nav a{color:var(--muted);text-decoration:none;font-size:14px}.topbar nav a:hover{color:var(--blue)}
.content { max-width:1400px; margin:0 auto; padding:30px 24px; }.hero { background:linear-gradient(112deg,var(--teal-dark),var(--teal)); border-radius:12px; color:#fff; padding:26px 30px; display:flex; gap:30px; align-items:center; justify-content:space-between; }.hero h1{font-size:31px;line-height:1.2;margin:8px 0 10px}.eyebrow{font-size:13px;font-weight:700;letter-spacing:.04em;margin:0;color:#b9d7d9}.hero-summary{margin:0;color:#d2e5e6;font-size:14px}.metrics{display:grid;grid-template-columns:repeat(4,144px);gap:9px}.metrics div{border:1px solid rgba(222,246,247,.35);background:rgba(255,255,255,.12);padding:12px 13px;min-height:68px}.metrics span{display:block;font-size:12px;color:#d0e4e7}.metrics strong{font-size:22px;display:block;margin-top:3px}.compact-hero{padding:24px 30px}.compact-hero h1{margin-bottom:4px}
.workspace{display:grid;grid-template-columns:37% 1fr;gap:18px;margin-top:18px}.left-column{display:grid;gap:18px;align-content:start}.panel{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}.panel-heading{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding:18px 20px;border-bottom:1px solid var(--line)}.panel-heading h2,.panel h2{font-size:17px;margin:0 0 7px}.panel-heading p,.panel p{font-size:13px;color:var(--muted);margin:0;line-height:1.5}.panel-heading>span{font-size:13px;color:var(--muted);white-space:nowrap}.task-list{padding:0}.task{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;gap:10px;align-items:flex-start}.task:last-child{border:0}.task strong{font-size:14px}.task p{margin:4px 0 0;font-size:12px;color:var(--muted);line-height:1.45}.task-body{flex:1}.status{font-size:12px;font-weight:700;border:1px solid var(--line);padding:4px 8px;white-space:nowrap;color:var(--muted);background:#f8fafc}.status.waiting{border-color:#c6d3e8;color:#4c5c73}.status.review{border-color:#bcd0f4;color:#215ab9;background:#edf4ff}.status.passed{border-color:#a9d8bf;color:var(--green);background:#effaf3}.status.returned{border-color:#f1c0c0;color:var(--danger);background:#fff4f4}
.timeline{list-style:none;padding:18px 26px;margin:0}.timeline li{display:flex;gap:14px;position:relative;padding:0 0 22px}.timeline li:last-child{padding-bottom:0}.timeline li:not(:last-child):before{content:"";position:absolute;left:5px;top:13px;bottom:0;border-left:1px solid #d5dee9}.timeline span{width:11px;height:11px;border-radius:50%;border:2px solid #b1bfce;background:#fff;z-index:1;margin-top:3px}.timeline .done span{border-color:var(--green);background:var(--green)}.timeline .current span{border-color:var(--blue);background:#fff}.timeline strong{font-size:14px}.timeline small{display:block;color:var(--muted);margin-top:4px;font-size:12px}
.materials-panel{min-height:580px}.materials-panel .panel-heading{align-items:center}.progress-line{height:8px;background:#e9eef5;margin:21px 22px 4px;overflow:hidden}.progress-line span{height:100%;display:block;background:var(--green);width:0;transition:width .3s}.materials-grid{padding:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.material-card{border:1px solid var(--line);border-radius:9px;padding:15px;display:flex;flex-direction:column;min-height:265px}.material-card .card-head{display:flex;align-items:center;gap:9px}.material-number{border:1px solid #bdcce0;padding:6px 8px;color:#50627b;font-weight:700;font-size:12px}.material-card h3{margin:0;flex:1;font-size:16px}.material-card .requirement{font-size:13px;color:#53627a;line-height:1.55;margin:14px 0 12px;min-height:60px}.file-list{background:#f7f9fc;border:1px solid #e1e8f1;margin:0 0 12px;padding:8px;min-height:41px;font-size:12px}.file-list a{display:block;color:var(--blue);text-decoration:none;padding:2px 0}.feedback{font-size:12px;color:var(--danger);line-height:1.45;margin:0 0 8px}.material-actions{display:flex;gap:8px;margin-top:auto}.material-actions .button{flex:1;padding:8px 7px;font-size:13px}
.button{border:1px solid transparent;border-radius:2px;padding:9px 14px;font-weight:700;font-size:14px;text-decoration:none;display:inline-flex;justify-content:center;align-items:center;gap:7px}.button.primary{background:var(--blue);color:#fff;border-color:var(--blue)}.button.primary:hover{background:#1e54ba}.button.secondary{background:#fff;color:#305a9e;border-color:#bfcfe7}.button.secondary:hover{background:#f4f8ff}.button.danger{border-color:#efc0c0;color:var(--danger);background:#fff}.button:disabled{opacity:.55;cursor:not-allowed}
.chat-dock{position:fixed;z-index:10;right:24px;bottom:20px;width:390px;background:#fff;border:1px solid #cfdbe9;border-radius:12px;box-shadow:0 16px 40px rgba(29,55,87,.18);overflow:hidden}.chat-heading{background:#173f62;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:13px 15px}.chat-heading strong,.chat-heading small{display:block}.chat-heading small{font-size:11px;color:#c7d7e8;margin-top:2px}.chat-heading button{font-size:22px;border:0;color:#fff;background:transparent}.online-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#38c78a;margin-right:7px}.chat-history{height:196px;overflow:auto;padding:13px;background:#f7f9fc}.chat-message{max-width:88%;padding:9px 11px;margin:0 0 10px;border-radius:8px;font-size:13px;line-height:1.5;white-space:pre-wrap}.chat-message.bot{background:#fff;border:1px solid #e0e7f0}.chat-message.user{background:#dcecff;margin-left:auto}.chat-sources{font-size:11px;color:var(--muted);margin:-5px 0 10px}.chat-form{display:flex;gap:8px;padding:11px;border-top:1px solid var(--line)}.chat-form input{min-width:0;flex:1;border:1px solid #c7d4e4;border-radius:4px;padding:9px}.chat-form .button{padding:8px 12px}
.chat-dock.collapsed{width:54px;height:54px;border-radius:50%;box-shadow:0 8px 20px rgba(29,55,87,.22)}.chat-dock.collapsed .chat-heading{height:54px;padding:0;display:grid;place-items:center}.chat-dock.collapsed .chat-heading>div,.chat-dock.collapsed .chat-history,.chat-dock.collapsed .chat-form{display:none}.chat-dock.collapsed .chat-heading button{width:54px;height:54px;font-size:0}.chat-dock.collapsed .chat-heading button:after{content:"💬";font-size:21px}.chat-dock.collapsed:hover{transform:translateY(-2px)}
.registration-dialog{border:0;border-radius:12px;padding:0;width:min(880px,calc(100vw - 24px));max-height:88vh;box-shadow:0 24px 60px rgba(22,39,63,.3)}.registration-dialog::backdrop{background:rgba(14,25,42,.52)}.registration-dialog form{padding:26px;overflow:auto;max-height:88vh}.dialog-header{display:flex;justify-content:space-between;gap:18px;border-bottom:1px solid var(--line);padding-bottom:16px}.dialog-header h2{margin:4px 0;font-size:24px}.dialog-header p{margin:0;color:var(--muted);font-size:13px}.dialog-header .eyebrow{color:var(--blue)}.icon-button{border:0;background:transparent;font-size:28px;color:var(--muted)}.form-section{padding:20px 0;border-bottom:1px solid var(--line)}.form-section h3{font-size:16px;margin:0 0 13px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.form-grid label,.checkbox{display:grid;gap:6px;font-size:13px;font-weight:700}.form-grid small{font-weight:400;color:var(--muted)}.form-grid input,.form-grid textarea,.form-grid select{border:1px solid #c9d5e4;border-radius:4px;padding:8px;background:#fff;min-width:0}.form-grid textarea{resize:vertical}.form-grid .wide{grid-column:span 3}.one-column{grid-template-columns:1fr}.checkbox{display:flex;margin:20px 0;align-items:center}.dialog-actions{display:flex;justify-content:flex-end;gap:9px}.toast{position:fixed;left:50%;bottom:25px;transform:translate(-50%,20px);opacity:0;z-index:50;background:#182a40;color:#fff;padding:11px 16px;border-radius:6px;font-size:14px;transition:all .2s;pointer-events:none}.toast.show{opacity:1;transform:translate(-50%,0)}
.admin-tabs{display:flex;gap:5px;margin:18px 0}.tab{border:1px solid var(--line);background:#fff;padding:9px 15px;color:var(--muted)}.tab.active{border-color:var(--blue);color:var(--blue);background:#edf4ff}.review-list,.knowledge-list{display:grid;gap:14px}.review-employee{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.review-header{padding:17px 20px;background:#fbfcfe;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.review-header h2{font-size:17px;margin:0}.review-header p{margin:5px 0 0;font-size:13px;color:var(--muted)}.review-materials{padding:10px 20px}.review-row{display:flex;gap:13px;align-items:center;padding:11px 0;border-bottom:1px solid #edf1f5}.review-row:last-child{border:0}.review-row .review-title{flex:1}.review-row small{display:block;color:var(--muted);margin-top:4px}.review-row .actions{display:flex;gap:7px}.review-row .button{padding:7px 9px;font-size:12px}.knowledge-tools{margin-bottom:14px;padding:18px 20px;display:flex;justify-content:space-between;align-items:center;gap:20px}.knowledge-tools h2{margin:0 0 6px}.tool-actions{display:flex;gap:8px;white-space:nowrap}.knowledge-row{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 17px;display:flex;justify-content:space-between;align-items:center}.knowledge-row strong,.knowledge-row small{display:block}.knowledge-row small{color:var(--muted);margin-top:4px}.auth-error{max-width:560px;margin:100px auto;background:#fff;border:1px solid var(--line);padding:40px;border-radius:12px;text-align:center}.auth-error h1{margin-top:0}.auth-error p{color:var(--muted);margin-bottom:24px}
@media (max-width:1050px){.metrics{grid-template-columns:repeat(2,132px)}.workspace{grid-template-columns:1fr}.left-column{grid-template-columns:1fr 1fr}.chat-dock{width:360px}.materials-panel{min-height:0}}
@media (max-width:720px){.topbar{padding:0 14px}.topbar nav{gap:12px}.content{padding:16px 12px}.hero{padding:22px 18px;display:block}.hero h1{font-size:25px}.metrics{margin-top:18px;grid-template-columns:repeat(2,1fr)}.left-column{grid-template-columns:1fr}.materials-grid{grid-template-columns:1fr;padding:12px}.panel-heading{padding:15px}.materials-panel .panel-heading{align-items:flex-start;display:block}.materials-panel .panel-heading .button{margin-top:12px}.chat-dock{right:10px;bottom:10px;width:calc(100vw - 20px)}.form-grid{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}.registration-dialog form{padding:18px}.knowledge-tools{display:block}.tool-actions{margin-top:13px}.review-row{align-items:flex-start;flex-wrap:wrap}.review-row .actions{width:100%;justify-content:flex-end}}