:root{
  --bg:#f6f7f9; --card:#fff; --ink:#1a2233; --muted:#67718a; --line:#e5e8f0;
  --brand:#2f5af5; --brand-weak:#eaeefe;
  --s1:#dc2626; --s1-bg:#fee2e2; --s2:#ea580c; --s2-bg:#ffedd5;
  --s3:#ca8a04; --s3-bg:#fef9c3; --s4:#4f46e5; --s4-bg:#e0e7ff; --ok:#16a34a; --ok-bg:#dcfce7;
  --radius:12px; --shadow:0 1px 3px rgba(16,24,40,.08),0 8px 24px rgba(16,24,40,.05);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;font-size:15px;line-height:1.65}
a{color:var(--brand);text-decoration:none}
button{font-family:inherit}
.container{max-width:1080px;margin:0 auto;padding:0 20px}

/* header */
header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.hwrap{display:flex;align-items:center;gap:14px;height:60px}
.logo{font-weight:700;font-size:18px;display:flex;align-items:center;gap:8px}
.logo .dot{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--brand),#7c3aed);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px}
.spacer{flex:1}
.badge{font-size:12px;color:var(--muted);border:1px dashed #c9d0e0;border-radius:99px;padding:3px 12px}
.btn{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:9px;
  padding:8px 16px;font-size:14px;cursor:pointer;transition:.15s}
.btn:hover{border-color:var(--brand);color:var(--brand)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.btn.primary:hover{opacity:.9;color:#fff}
.btn.small{padding:4px 10px;font-size:12.5px;border-radius:7px}
.btn.ghost{border-color:transparent;background:transparent;color:var(--muted)}
.btn.ghost:hover{color:var(--brand)}

/* cards & layout */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.pad{padding:22px}
.muted{color:var(--muted)} .small{font-size:12.5px}
h1,h2,h3{margin:.2em 0 .4em}
.view{display:none;padding:26px 0 60px}
.view.active{display:block}

/* upload */
.drop{border:2px dashed #c9d0e0;border-radius:14px;padding:38px 20px;text-align:center;cursor:pointer;transition:.15s}
.drop:hover,.drop.over{border-color:var(--brand);background:var(--brand-weak)}
.drop .big{font-size:16px;font-weight:600}
.tabs{display:flex;gap:8px;margin-bottom:14px}
.tab{padding:7px 16px;border-radius:99px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:14px}
.tab.on{background:var(--brand);color:#fff;border-color:var(--brand)}
textarea#pasteBox{width:100%;min-height:200px;border:1px solid var(--line);border-radius:10px;padding:12px;
  font-family:inherit;font-size:14px;resize:vertical}
.optrow{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin-top:14px}
.optrow label{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted)}
select{padding:7px 10px;border:1px solid var(--line);border-radius:8px;font-family:inherit;background:#fff}
.demo{display:flex;gap:10px;margin-top:14px}
.step-note{font-size:13px;color:var(--muted);margin-top:10px}

/* progress */
.steps{display:flex;flex-direction:column;gap:0;margin-top:8px}
.step{display:flex;gap:14px;align-items:flex-start;padding:10px 0}
.step .ico{width:26px;height:26px;border-radius:50%;background:var(--line);color:#fff;flex:none;
  display:flex;align-items:center;justify-content:center;font-size:13px}
.step.done .ico{background:var(--ok)}
.step.on .ico{background:var(--brand);animation:pulse 1.2s infinite}
@keyframes pulse{50%{opacity:.45}}
.spin{width:34px;height:34px;border:3px solid var(--line);border-top-color:var(--brand);border-radius:50%;
  animation:sp 1s linear infinite;margin:30px auto 10px}
@keyframes sp{to{transform:rotate(360deg)}}

/* report dashboard */
.dash{display:grid;grid-template-columns:210px 1fr;gap:18px;align-items:stretch}
.health{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}
.health .num{font-size:52px;font-weight:800;line-height:1}
.health .cap{color:var(--muted);font-size:13px;margin-top:6px}
.h-good{color:var(--ok)} .h-mid{color:var(--s3)} .h-bad{color:var(--s1)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0}
.chip{border-radius:10px;padding:8px 14px;font-size:13px;font-weight:600;display:flex;flex-direction:column;line-height:1.3}
.chip .n{font-size:20px}
.chip.s1{background:var(--s1-bg);color:var(--s1)} .chip.s2{background:var(--s2-bg);color:var(--s2)}
.chip.s3{background:var(--s3-bg);color:var(--s3)} .chip.s4{background:var(--s4-bg);color:var(--s4)}
.chip.ok{background:var(--ok-bg);color:var(--ok)}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.banner{border-radius:10px;padding:10px 14px;font-size:13.5px;margin:14px 0}
.banner.llm{background:var(--brand-weak);color:#334}
.banner.warn{background:var(--s3-bg);color:#713f12}

/* items */
.filter{display:flex;gap:8px;margin:18px 0 12px;flex-wrap:wrap}
.item{border:1px solid var(--line);border-radius:12px;background:#fff;margin:12px 0;overflow:hidden}
.item-head{display:flex;align-items:center;gap:10px;padding:12px 16px;cursor:pointer}
.item-head:hover{background:#fafbfe}
.lvl{color:#fff;font-size:11.5px;font-weight:700;border-radius:6px;padding:2px 8px;flex:none}
.lvl.S1{background:var(--s1)} .lvl.S2{background:var(--s2)} .lvl.S3{background:var(--s3)} .lvl.S4{background:var(--s4)}
.item-title{font-weight:600;flex:1}
.item-body{display:none;border-top:1px solid var(--line);padding:14px 16px;background:#fcfcfe}
.item.open .item-body{display:block}
.quote{background:#f4f6fb;border-left:3px solid #c9d0e0;padding:8px 12px;border-radius:0 8px 8px 0;
  font-size:13.5px;white-space:pre-wrap;color:#333;max-height:120px;overflow:auto}
.sect{margin:10px 0 2px;font-size:12.5px;color:var(--muted);font-weight:600}
.lawchips{display:flex;flex-wrap:wrap;gap:6px}
.lawchip{background:#eef3ff;border:1px solid #d5defc;color:#3b51c4;font-size:12px;border-radius:7px;padding:3px 9px}
.lawchip b{cursor:help}
.sugg{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:8px 12px;font-size:13.5px;margin-top:6px}
.meta{font-size:12px;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap}
.review-box{margin-top:12px;padding-top:10px;border-top:1px dashed var(--line);display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.review-box input{flex:1;min-width:180px;padding:7px 10px;border:1px solid var(--line);border-radius:8px;font-family:inherit}
.review-state{font-size:12.5px;border-radius:7px;padding:3px 10px;display:inline-block}
.rs-confirm{background:var(--ok-bg);color:var(--ok)} .rs-modify{background:var(--s2-bg);color:var(--s2)}
.rs-reject{background:#f3f4f6;color:var(--muted)}

/* clause modal */
.modal{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:50;align-items:center;justify-content:center}
.modal.open{display:flex}
.modal .box{background:#fff;border-radius:14px;max-width:680px;width:92%;max-height:80vh;overflow:auto;padding:22px}
.clause-list{max-height:520px;overflow:auto}
.clause-row{padding:8px 10px;border-radius:8px;cursor:pointer;display:flex;gap:8px;align-items:baseline}
.clause-row:hover{background:var(--brand-weak)}
.clause-row .lbl{font-weight:600;font-size:13px;flex:none;min-width:64px}
.flag{width:8px;height:8px;border-radius:50%;display:inline-block;margin-left:6px}

footer{border-top:1px solid var(--line);background:var(--card);padding:18px 0;margin-top:40px}
footer .container{font-size:12.5px;color:var(--muted)}