:root{
  --ink:#122033; --ink2:#46556a; --mute:#7a8799; --line:#e3e8ef; --bg:#f5f7fa; --card:#fff;
  --brand:#0a2245; --brand2:#173d70; --acc:#b8975a; --ok:#1f8a5b; --warn:#c77c12; --bad:#c23b3b; --info:#2a6fdb;
  --r:12px; --sh:0 1px 2px rgba(18,32,51,.06),0 4px 16px rgba(18,32,51,.06);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Roboto, Arial, sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5}
a{color:var(--brand2)}
h1,h2,h3{line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(28px,4.4vw,46px);letter-spacing:-.01em}
h2{font-size:clamp(22px,2.6vw,30px)}
h3{font-size:17px}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.muted{color:var(--mute)} .small{font-size:13px}
.hidden{display:none!important}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:18px;height:62px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap}
.logo i{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;color:#fff;font-style:normal;font-size:10px;font-weight:800;letter-spacing:.02em}
.nav{display:flex;gap:4px;flex:1}
.nav a{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--ink2);font-weight:500}
.nav a:hover,.nav a.on{background:var(--bg);color:var(--ink)}
.langs{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.langs button{border:0;background:#fff;padding:6px 10px;cursor:pointer;color:var(--ink2);font:inherit;font-size:13px}
.langs button.on{background:var(--brand);color:#fff}

/* buttons, inputs */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:10px 18px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap;background:var(--brand);color:#fff}
.btn:hover{background:var(--brand2)}
.btn.acc{background:var(--acc);color:#fff} .btn.acc:hover{filter:brightness(.96)}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line)} .btn.ghost:hover{border-color:#c9d2de}
.btn.ok{background:var(--ok)} .btn.bad{background:#fff;color:var(--bad);border-color:#f0caca}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.55;cursor:default}
label.f{display:block;font-size:13px;color:var(--ink2);margin-bottom:12px}
label.f>span{display:block;margin-bottom:4px;font-weight:500}
label.f>span b{color:var(--bad);font-weight:600}
input,select,textarea{width:100%;font:inherit;color:var(--ink);background:#fff;border:1px solid #d5dce6;border-radius:9px;padding:9px 11px;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--brand2);box-shadow:0 0 0 3px rgba(31,79,134,.12)}
textarea{min-height:84px;resize:vertical}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--brand)}
.check{display:flex;gap:9px;align-items:flex-start;font-size:14px;margin:8px 0;color:var(--ink)}
.check input{margin-top:3px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 16px}
@media(max-width:720px){.grid2,.grid3{grid-template-columns:1fr}}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:22px}
.card+.card{margin-top:16px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:#eef2f7;color:var(--ink2);white-space:nowrap}
.pill.ok{background:#e3f4ec;color:var(--ok)} .pill.warn{background:#fdf1de;color:var(--warn)} .pill.bad{background:#fbe7e7;color:var(--bad)} .pill.info{background:#e6eefc;color:var(--info)}
.note{border-radius:10px;padding:12px 14px;background:#eef3fa;color:var(--ink2);font-size:14px;margin-bottom:16px}
.note.warn{background:#fdf4e5;color:#7a4b06} .note.ok{background:#e6f5ee;color:#13583a} .note.bad{background:#fbeaea;color:#7f1f1f}
.err{color:var(--bad);font-size:13px;min-height:18px;margin-top:6px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 18px;border-radius:10px;z-index:99;box-shadow:var(--sh);font-size:14px}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{text-align:left;font-weight:600;color:var(--mute);font-size:12px;text-transform:uppercase;letter-spacing:.03em;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:12px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.tbl .num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.tblwrap{overflow-x:auto}

/* modal */
.modal{position:fixed;inset:0;background:rgba(10,20,35,.45);display:grid;place-items:center;z-index:50;padding:16px}
.modal>div{background:#fff;border-radius:14px;max-width:640px;width:100%;max-height:92vh;overflow:auto;padding:24px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal h3{margin-bottom:14px}
.mfoot{display:flex;gap:10px;justify-content:flex-end;margin-top:14px}

/* chat */
.chat{display:flex;flex-direction:column;height:min(620px,70vh)}
.chat .msgs{flex:1;overflow-y:auto;padding:6px 4px;display:flex;flex-direction:column;gap:10px}
.bub{max-width:78%;padding:10px 13px;border-radius:14px;background:#eef2f7;white-space:pre-wrap;word-wrap:break-word;font-size:14px}
.bub.me{align-self:flex-end;background:var(--brand);color:#fff;border-bottom-right-radius:4px}
.bub.them{align-self:flex-start;border-bottom-left-radius:4px}
.bub .t{display:block;font-size:11px;opacity:.65;margin-top:4px}
.bub a{color:inherit;text-decoration:underline}
.chat form{display:flex;gap:8px;border-top:1px solid var(--line);padding-top:12px;margin-top:8px;align-items:flex-end}
.chat textarea{min-height:44px;height:44px}

/* files */
.files{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.file{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:8px;padding:5px 9px;font-size:13px;background:#fff;text-decoration:none;color:var(--ink)}
.file img{width:36px;height:36px;object-fit:cover;border-radius:5px}
.file button{border:0;background:none;color:var(--mute);cursor:pointer;font-size:15px;padding:0 2px}
.upl{border:1px dashed #c5cfdc;border-radius:10px;padding:12px;text-align:center;cursor:pointer;color:var(--ink2);font-size:13px;background:#fafbfd}
.upl:hover{border-color:var(--brand2)}

/* tabs */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:20px;overflow-x:auto}
.tabs a{padding:10px 14px;text-decoration:none;color:var(--ink2);font-weight:600;border-bottom:2px solid transparent;white-space:nowrap;display:flex;gap:6px;align-items:center}
.tabs a.on{color:var(--ink);border-color:var(--brand)}
.badge{min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--bad);color:#fff;font-size:11px;display:inline-grid;place-items:center}

/* contract */
.ct{font-size:13.5px;line-height:1.55}
.ct-title{text-align:center;font-weight:700;font-size:16px;margin-bottom:4px}
.ct-meta{text-align:right;color:var(--mute);margin-bottom:12px}
.ct-row{display:grid;grid-template-columns:1fr 1fr;gap:22px;padding:4px 0}
.ct-h{font-weight:700;margin-top:10px}
.ct-zh{color:#2f3b4c}
.ct-sub{color:var(--mute);font-size:12px}
.ct-tbl{width:100%;border-collapse:collapse;margin:8px 0;font-size:12.5px}
.ct-tbl th,.ct-tbl td{border:1px solid #cfd6e0;padding:6px 8px;text-align:left;vertical-align:top}
.ct-tbl td:nth-child(n+4),.ct-tbl th:nth-child(n+4){text-align:right}
.ct-tbl tfoot td{font-weight:700}
.ct-signs{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:22px}
.ct-sign{border-top:1px solid var(--ink);padding-top:8px}
.ct-sign-h{font-weight:700;margin-bottom:4px}
@media(max-width:720px){.ct-row,.ct-signs{grid-template-columns:1fr;gap:4px}}
@media print{.noprint{display:none!important} body{background:#fff} .card{box-shadow:none;border:0;padding:0}}