:root{--ink:#17202a;--muted:#637083;--line:#dbe4ec;--white:#fff;--blue:#176b87;--green:#2f7d65;--coral:#c95d43;--soft-blue:#e9f4f7;--soft-green:#edf6f1;--soft-coral:#fff0ea;--shadow:0 16px 38px rgba(23,32,42,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:linear-gradient(135deg,rgba(23,107,135,.1),transparent 32rem),linear-gradient(315deg,rgba(201,93,67,.1),transparent 30rem),#f6f8fb;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;letter-spacing:0}a{color:inherit;text-decoration:none}
.topbar{position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(219,228,236,.9);background:rgba(251,252,253,.94);backdrop-filter:blur(14px)}.topbar-inner,main{width:min(1180px,calc(100% - 32px));margin:0 auto}.topbar-inner{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:10px;color:var(--blue);font-weight:850}.brand-mark{width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--blue),var(--green));display:grid;place-items:center;color:#fff;font-size:17px}.nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px}.nav a,.button{border:1px solid rgba(23,107,135,.18);border-radius:8px;padding:9px 12px;color:#334256;background:#fff;font-size:14px;font-weight:750}
section{padding:clamp(28px,4.5vw,58px) 0}h1,h2,h3,p{margin:0}h1{max-width:980px;font-size:clamp(38px,6vw,72px);line-height:1.05;letter-spacing:0}h2{font-size:clamp(28px,4vw,52px);line-height:1.12;letter-spacing:0}h3{font-size:clamp(20px,2vw,28px);line-height:1.25;letter-spacing:0}p,li,label,input,textarea,button,td,th{font-size:16px;line-height:1.6}p,li,td,th{color:#354356}ul{margin:0;padding-left:1.25em}table{width:100%;border-collapse:collapse;overflow:hidden;border-radius:8px;background:#fff}th,td{border:1px solid var(--line);padding:12px 14px;vertical-align:top;text-align:left}th{background:var(--soft-blue);color:#243247;font-weight:850}
.eyebrow{margin:0 0 14px;color:var(--coral);font-size:16px;font-weight:850;text-transform:uppercase}.lead{max-width:900px;margin-top:18px;color:#354356;font-size:clamp(18px,1.8vw,25px);line-height:1.55}.sticky-tools{position:sticky;top:66px;z-index:12;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.96);box-shadow:var(--shadow);padding:14px;margin-top:24px;display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}.practice-card .sticky-tools{position:static;z-index:auto;box-shadow:none;margin-top:0;background:#f9fbfd}.timer-display{color:var(--blue);font-size:clamp(38px,6vw,72px);font-weight:900;line-height:1;letter-spacing:0}.timer-label{color:var(--muted);font-weight:850}
.button-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}button{border:1px solid transparent;border-radius:8px;padding:10px 14px;font-family:inherit;font-weight:850;cursor:pointer}.primary{background:var(--blue);color:#fff}.secondary{border-color:#cfd9e3;background:#fff;color:#26364a}.danger{background:var(--soft-coral);color:var(--coral);border-color:rgba(201,93,67,.22)}
.panel,.practice-card,.record-card{min-width:0;border:1px solid var(--line);border-radius:8px;background:var(--white);box-shadow:var(--shadow)}.panel{padding:clamp(20px,2.4vw,30px);display:grid;gap:18px}.practice-stack{display:grid;gap:18px}.practice-card{padding:clamp(18px,2.3vw,28px);display:grid;gap:16px;box-shadow:none}.practice-card.part1{border-top:5px solid var(--blue)}.practice-card.part2{border-top:5px solid var(--green)}.practice-card.part3{border-top:5px solid var(--coral)}.tag-row{display:flex;flex-wrap:wrap;gap:9px}.tag{border-radius:999px;padding:7px 11px;border:1px solid rgba(23,107,135,.18);background:var(--soft-blue);color:#1d5367;font-size:14px;font-weight:750}.tag.green{background:var(--soft-green);color:var(--green)}.tag.coral{background:var(--soft-coral);color:var(--coral)}.question-list{display:grid;gap:10px;margin-top:4px;padding:0;list-style:none}.question-list li{border-left:4px solid rgba(23,107,135,.25);padding:8px 0 8px 12px}.question-card{border:1px solid #d8e2ea;border-radius:8px;background:#f9fbfd;padding:0}.question-card summary{padding:11px 13px;cursor:pointer;color:#26364a;font-weight:850}.question-card[open] summary{border-bottom:1px solid #d8e2ea}.question-card .record-form{padding:14px}.part2-workspace{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:16px;align-items:start}.part2-prompt,.part2-side{min-width:0;border:1px solid #d8e2ea;border-radius:8px;background:#f9fbfd;padding:14px}.part2-side{display:grid;gap:14px}.part2-side .sticky-tools{position:static;margin-top:0}
.record-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding-top:4px}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}.check-group{align-content:start;border:1px solid #d8e2ea;border-radius:8px;padding:10px 12px;background:#f9fbfd}.check-item{display:flex;align-items:center;gap:9px;color:#26364a;font-weight:800}.check-item+.check-item{margin-top:8px}.check-item input{width:18px;height:18px;accent-color:var(--blue)}label{color:#26364a;font-weight:800}input,textarea{width:100%;border:1px solid #cfd9e3;border-radius:8px;background:#fff;color:var(--ink);padding:10px 12px;font-family:inherit}textarea{min-height:92px;resize:vertical}input:focus,textarea:focus{border-color:var(--blue);outline:3px solid rgba(23,107,135,.14)}
.status{min-height:24px;color:var(--green);font-weight:750}.records-head{display:flex;justify-content:space-between;gap:12px;align-items:end;margin-bottom:16px}.records-list{display:grid;gap:12px}.record-card{padding:18px;display:grid;gap:10px;box-shadow:none}.record-top{display:flex;justify-content:space-between;gap:12px;align-items:start}.record-card h3{font-size:20px}.meta,.note{color:var(--muted);font-size:14px;font-weight:650}.record-block{border-left:4px solid var(--line);padding-left:12px}.record-block strong{display:block;margin-bottom:3px;color:#26364a}.empty{border:1px dashed #c7d3df;border-radius:8px;padding:20px;color:var(--muted);background:rgba(255,255,255,.62)}.footer{padding:24px 0 36px;color:var(--muted);text-align:center;font-size:14px}
@media(max-width:900px){.topbar-inner,.record-top,.records-head,.sticky-tools{align-items:flex-start;flex-direction:column}.sticky-tools{display:flex;top:92px}.nav{justify-content:flex-start}.record-form{grid-template-columns:1fr}.part2-workspace{grid-template-columns:1fr}}