:root{--ink:#24323f;--muted:#687784;--line:#dce3e8;--surface:#fff;--canvas:#f4f6f7;--primary:#315b65;--primary-2:#23444c;--success:#34745a;--warning:#9a6a24;--danger:#a04444;--info:#386a8c;--radius:12px;--shadow:0 4px 18px rgba(31,48,61,.07)}
*{box-sizing:border-box}html{color-scheme:light}body{margin:0;background:var(--canvas);color:var(--ink);font:15px/1.65 system-ui,-apple-system,"Segoe UI","Noto Sans TC",sans-serif}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{line-height:1.3;margin-top:0;color:#1d3038}h1{font-size:clamp(1.65rem,3vw,2.35rem)}h2{font-size:1.3rem}h3{font-size:1.04rem}p{margin:.4rem 0 1rem}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:1rem;top:1rem;background:#fff;padding:.5rem;z-index:99}.topbar{min-height:66px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 max(18px,calc((100vw - 1240px)/2));gap:24px;position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:9px;font-weight:760;color:var(--ink);white-space:nowrap}.brand:hover{text-decoration:none}.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:8px;background:var(--primary);color:#fff}.main-nav{display:flex;gap:3px;flex:1}.main-nav a,.icon-link{padding:8px 10px;border-radius:8px;color:#50606d;font-size:.92rem}.main-nav a.active,.main-nav a:hover{background:#eaf0f1;color:var(--primary-2);text-decoration:none}.top-actions{display:flex;gap:2px}.nav-toggle{display:none;border:0;background:none;font-size:1.4rem}.container{width:min(1240px,calc(100% - 32px));margin:28px auto 60px}.hero{background:var(--primary-2);color:#fff;border-radius:16px;padding:30px;display:grid;grid-template-columns:1.4fr 1fr;gap:24px;box-shadow:var(--shadow)}.hero h1,.hero h2{color:#fff;margin-bottom:.3rem}.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.75rem;font-weight:750;color:#7b909b}.hero .eyebrow{color:#bbced2}.countdown{font-size:clamp(1.7rem,4vw,3.2rem);font-weight:800;line-height:1.15}.hero-meta{color:#c8d8db}.hero-side{align-self:center;padding-left:24px;border-left:1px solid rgba(255,255,255,.2)}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card h2{margin-bottom:14px}.section{margin-top:26px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:12px}.metric{display:flex;flex-direction:column;gap:4px}.metric strong{font-size:1.75rem;line-height:1.2}.metric small,.muted{color:var(--muted)}.progress-wrap{margin:10px 0}.progress-meta{display:flex;justify-content:space-between;font-size:.9rem}.progress{height:9px;background:#e5eaed;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:var(--primary);border-radius:999px}.badge{display:inline-block;border-radius:999px;padding:2px 8px;font-size:.76rem;font-weight:700;background:#e9edf0;color:#53616d}.badge-success{background:#e4f2eb;color:var(--success)}.badge-warning{background:#f7eddc;color:#80571d}.badge-danger{background:#f7e5e5;color:var(--danger)}.badge-info{background:#e3eef4;color:var(--info)}.button,button,input[type=submit]{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--primary);border-radius:8px;background:var(--primary);color:#fff;padding:9px 14px;font:inherit;font-weight:650;cursor:pointer}.button:hover,button:hover{text-decoration:none;background:var(--primary-2)}.button-secondary{background:#fff;color:var(--primary);border-color:#a9bbc0}.button-danger{background:var(--danger);border-color:var(--danger)}.button-small{padding:5px 9px;font-size:.84rem}.button-row{display:flex;gap:9px;flex-wrap:wrap}.alert{padding:12px 15px;border-radius:9px;margin:0 0 18px;border-left:4px solid}.alert-success{background:#e8f3ed;border-color:var(--success)}.alert-warning{background:#fbf2e3;border-color:var(--warning)}.alert-danger{background:#f9e8e8;border-color:var(--danger)}.alert-info{background:#e7f0f5;border-color:var(--info)}label{font-weight:650;display:block;margin-bottom:5px}input,select,textarea{width:100%;border:1px solid #bfcbd2;border-radius:8px;padding:9px 11px;background:#fff;color:var(--ink);font:inherit}textarea{min-height:120px;resize:vertical}input:focus,select:focus,textarea:focus{outline:3px solid rgba(49,91,101,.15);border-color:var(--primary)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.field{margin-bottom:14px}.inline-form{display:flex;gap:8px;align-items:end;flex-wrap:wrap}.inline-form .field{margin:0;min-width:150px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;background:#fff}th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:.82rem;color:#596874;background:#f8fafb;white-space:nowrap}.tree,.tree ul{list-style:none;padding-left:20px}.tree>li{padding-left:0}.tree li{margin:8px 0}.tree-node{display:flex;justify-content:space-between;gap:10px;padding:11px 13px;border:1px solid var(--line);border-radius:8px;background:#fff}.stars{color:#9a6a24;letter-spacing:1px}.timeline{display:flex;align-items:center;overflow-x:auto;padding:12px 0}.timeline-step{min-width:130px;text-align:center;padding:10px;border:1px solid var(--line);background:#fff}.timeline-arrow{padding:0 7px;color:var(--muted)}.process{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.process-step{background:#eaf0f1;color:var(--primary-2);padding:8px 12px;border-radius:8px;font-weight:700}.process-arrow{color:var(--muted)}.question-text{font-size:1.08rem;white-space:pre-line}.option{display:block;border:1px solid var(--line);border-radius:9px;padding:10px 12px;margin:9px 0;font-weight:500}.option input{width:auto;margin-right:9px}.option.correct{border-color:var(--success);background:#edf7f2}.option.incorrect{border-color:var(--danger);background:#fbefef}.callout{padding:14px;border:1px solid #cbd8dc;border-left:4px solid var(--primary);background:#f4f8f9;border-radius:8px}.empty-state{text-align:center;background:#fff;border:1px dashed #b9c5ca;border-radius:12px;padding:42px 20px}.pagination{display:flex;gap:5px;margin-top:18px}.pagination a{padding:5px 10px;border:1px solid var(--line);border-radius:6px;background:#fff}.pagination a.active{background:var(--primary);color:#fff}.tabs{display:flex;gap:4px;overflow-x:auto;margin-bottom:18px;border-bottom:1px solid var(--line)}.tabs a{padding:9px 13px;white-space:nowrap}.tabs a.active{border-bottom:3px solid var(--primary);font-weight:700}.rubric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.rubric-item{background:#f8fafb;padding:10px;border-radius:8px}.rubric-item input{margin-top:5px}.chart-bars{display:flex;align-items:end;gap:12px;height:210px;border-bottom:1px solid var(--line);padding:15px}.chart-bar{flex:1;min-width:45px;background:#6e969e;border-radius:5px 5px 0 0;position:relative}.chart-bar span{position:absolute;bottom:-28px;left:50%;transform:translateX(-50%);font-size:.76rem;white-space:nowrap}.footer{display:flex;justify-content:space-between;gap:20px;width:min(1240px,calc(100% - 32px));margin:0 auto 24px;color:var(--muted);font-size:.82rem}.login-shell{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(440px,100%)}.priority-S{border-left:4px solid #8a3d3d}.priority-A{border-left:4px solid #9a6a24}.priority-B{border-left:4px solid #497783}.priority-C{border-left:4px solid #87939b}.timer{position:sticky;top:78px;z-index:10;background:#263f47;color:#fff;padding:10px 16px;border-radius:8px;font-size:1.35rem;font-variant-numeric:tabular-nums;text-align:center}.hidden{display:none!important}
@media(max-width:1000px){.main-nav{display:none;position:absolute;left:16px;right:16px;top:62px;background:#fff;padding:10px;box-shadow:var(--shadow);border:1px solid var(--line);border-radius:10px;flex-wrap:wrap}.main-nav.open{display:flex}.nav-toggle{display:block;margin-left:auto}.top-actions{display:none}.grid-4{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr}.hero-side{border:0;border-top:1px solid rgba(255,255,255,.2);padding:18px 0 0}.rubric-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.container{width:min(100% - 20px,1240px);margin-top:14px}.topbar{padding:0 12px}.brand span:last-child{display:none}.grid-2,.grid-3,.grid-4,.form-grid{grid-template-columns:1fr}.card{padding:15px}.hero{padding:22px}.footer{flex-direction:column}.rubric-grid{grid-template-columns:1fr}.section-heading{align-items:start;flex-direction:column}.inline-form{align-items:stretch}.inline-form .field{width:100%}}