/* BizToolPanda — shared design system (approved design, 2026-10-17) */
:root{
  --ink:#101418; --ink2:#3c4650; --mut:#6b7684;
  --green:#17a068; --green-d:#128557; --green-t:#e7f6ef;
  --amber:#f5a623; --red:#d64545; --line:#e6ebee; --bg:#f7faf9; --card:#ffffff;
  --radius:16px;
  --shadow:0 2px 10px rgba(16,20,24,.06), 0 10px 30px rgba(16,20,24,.05);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}
a{text-decoration:none;color:var(--green-d)}
a:hover{text-decoration:underline}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
img{max-width:100%}

/* header */
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
header a{color:inherit} header a:hover{text-decoration:none}
.nav{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;letter-spacing:-.3px;color:var(--ink)}
.logo .mark{width:40px;height:40px;border-radius:11px;background:var(--green);display:flex;align-items:center;justify-content:center;flex:none}
.logo b{color:var(--ink)} .logo>span:last-child{color:var(--green)}
nav.links{display:flex;gap:22px;margin-left:8px}
nav.links a{font-size:15px;font-weight:600;color:var(--ink2)}
nav.links a:hover{color:var(--green)}
.nav .sp{flex:1}
.btn{display:inline-block;background:var(--green);color:#fff;font-weight:700;font-size:15px;padding:10px 20px;border-radius:10px;border:0;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--green-d);text-decoration:none}
.btn-big{display:inline-block;background:var(--green);color:#fff;font-weight:700;font-size:16.5px;padding:13px 28px;border-radius:11px;border:0;cursor:pointer;font-family:inherit}
.btn-big:hover{background:var(--green-d)}
.btn-ghost{display:inline-block;background:#fff;color:var(--ink2);font-weight:600;font-size:14.5px;padding:9px 16px;border-radius:9px;border:1.5px solid var(--line);cursor:pointer;font-family:inherit}
.btn-ghost:hover{border-color:var(--green);color:var(--green-d)}

/* hero */
.hero{background:linear-gradient(180deg,#ffffff 0%, var(--green-t) 130%);border-bottom:1px solid var(--line);padding:64px 0 56px;text-align:center}
.hero .pill{display:inline-block;background:var(--green-t);color:var(--green-d);font-weight:700;font-size:13px;padding:6px 14px;border-radius:999px;border:1px solid #cdeede}
.hero h1{font-size:46px;line-height:1.12;letter-spacing:-1px;margin:18px auto 14px;max-width:760px}
.hero h1 em{font-style:normal;color:var(--green)}
.hero p.sub{font-size:18px;color:var(--ink2);max-width:620px;margin:0 auto 28px}
.search{max-width:620px;margin:0 auto;background:#fff;border:1.5px solid var(--line);border-radius:14px;box-shadow:var(--shadow);display:flex;align-items:center;padding:6px}
.search input{flex:1;border:0;outline:0;font-size:16px;padding:10px 14px;font-family:inherit;background:transparent}
.hero .quick{margin-top:16px;font-size:14px;color:var(--mut)}
.hero .quick a{color:var(--green-d);font-weight:600}

/* sections & cards */
section{padding:52px 0 8px}
.sec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.sec-head h2{font-size:27px;letter-spacing:-.5px}
.sec-head .tag{font-size:13px;font-weight:700;color:var(--green-d);background:var(--green-t);padding:4px 10px;border-radius:999px}
.sec-head p{color:var(--mut);font-size:15px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;gap:14px;align-items:flex-start;box-shadow:0 1px 3px rgba(16,20,24,.03);transition:.15s;color:var(--ink)}
.tool:hover{border-color:#bfe6d4;box-shadow:var(--shadow);transform:translateY(-2px);text-decoration:none}
.tool .ic{width:46px;height:46px;border-radius:12px;flex:none;display:flex;align-items:center;justify-content:center;background:var(--green-t);font-size:22px;font-style:normal;font-weight:700;color:var(--green-d)}
.tool h3{font-size:16.5px;margin-bottom:2px;color:var(--ink)}
.tool p{font-size:13.5px;color:var(--mut);line-height:1.45}
.tool .hot{margin-left:auto;font-size:11px;font-weight:800;color:#a35b00;background:#fdeecb;padding:3px 8px;border-radius:999px;flex:none}
.no-match{display:none;color:var(--mut);font-size:15px;padding:8px 0 4px}

/* trust strip */
.trust{margin:56px 0 8px;background:var(--ink);border-radius:20px;color:#eaf1ee;padding:34px 36px;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.trust h3{font-size:17px;color:#fff;margin-bottom:5px}
.trust p{font-size:14px;color:#b9c6c0}
.trust .n{font-size:24px}

/* faq */
.faq details,.tool-content details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:10px}
.faq summary,.tool-content summary{font-weight:700;cursor:pointer;font-size:16px}
.faq p,.tool-content details p{color:var(--ink2);font-size:15px;margin-top:8px}

/* footer */
footer{margin-top:60px;background:#fff;border-top:1px solid var(--line);padding:36px 0 30px}
footer a{color:var(--mut)} footer a:hover{color:var(--green-d)}
.fcols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:26px}
footer h4{font-size:15px;margin-bottom:10px}
footer li{list-style:none;font-size:14px;color:var(--mut);margin-bottom:7px}
.copy{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--mut);display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* ---------- tool pages ---------- */
.tool-page{padding-top:26px;max-width:900px}
.crumb{font-size:13.5px;color:var(--mut);margin-bottom:14px}
.crumb a{color:var(--mut)} .crumb a:hover{color:var(--green-d)}
.tool-page h1{font-size:36px;letter-spacing:-.6px;line-height:1.15}
.tool-page .lede{font-size:17.5px;color:var(--ink2);margin:10px 0 22px;max-width:720px}
.tool-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;margin-bottom:34px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;font-size:14.5px;margin-bottom:6px}
.field .hint{font-weight:400;color:var(--mut);font-size:13px}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row>.field{flex:1;min-width:160px}
input[type=text],input[type=number],input[type=url],input[type=date],input[type=file],select,textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:11px 13px;font-size:16px;font-family:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--green);box-shadow:0 0 0 3px var(--green-t)}
textarea{min-height:120px;resize:vertical}
textarea.code,pre.code{font-family:ui-monospace,Consolas,Menlo,monospace;font-size:13.5px}
input[type=range]{width:100%;accent-color:var(--green)}
input[type=checkbox],input[type=radio]{accent-color:var(--green);width:17px;height:17px;vertical-align:-3px}
.checkline{display:flex;align-items:center;gap:8px;font-size:15px;margin-bottom:10px}
.result{background:var(--green-t);border:1px solid #cdeede;border-radius:12px;padding:18px 20px;margin-top:18px}
.result:empty{display:none}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.stat .v{font-size:24px;font-weight:800;letter-spacing:-.4px}
.stat .l{font-size:13px;color:var(--mut);font-weight:600}
.tbl{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff}
.tbl th{text-align:left;background:#f2f7f4;padding:10px 12px;border-bottom:2px solid var(--line);font-size:13.5px}
.tbl td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top;word-break:break-word}
.msg-error{background:#fdeeee;border:1px solid #f3c2c2;color:#8f1d1d;border-radius:10px;padding:12px 15px;font-size:14.5px;margin-top:14px}
.msg-error:empty{display:none}
.drop{border:2px dashed #bcd9cc;border-radius:12px;padding:26px;text-align:center;color:var(--ink2);background:#fbfdfc;cursor:pointer}
.drop:hover{border-color:var(--green)}
img.preview{border-radius:12px;border:1px solid var(--line);margin-top:10px}
.badge-pass,.badge-warn,.badge-fail{display:inline-block;font-size:12px;font-weight:800;padding:3px 9px;border-radius:999px}
.badge-pass{background:var(--green-t);color:var(--green-d)}
.badge-warn{background:#fdeecb;color:#a35b00}
.badge-fail{background:#fdeeee;color:#a11f1f}
.score-ring{display:flex;align-items:center;gap:18px}
.score-ring .n{font-size:52px;font-weight:800;letter-spacing:-1px;color:var(--green-d);line-height:1}
.tool-content{max-width:760px}
.tool-content h2{font-size:24px;letter-spacing:-.4px;margin:30px 0 10px}
.tool-content p{color:var(--ink2);margin-bottom:10px}
.tool-content ol,.tool-content ul{margin:0 0 12px 22px;color:var(--ink2)}
.tool-content li{margin-bottom:6px}
.tool-content .grid{margin-top:6px}

/* static pages */
.page-body{max-width:760px;padding-top:26px}
.page-body h1{font-size:36px;letter-spacing:-.6px;margin-bottom:14px}
.page-body h2{font-size:23px;margin:26px 0 8px}
.page-body p{color:var(--ink2);margin-bottom:12px}
.page-body ul{margin:0 0 12px 22px;color:var(--ink2)}

@media(max-width:900px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:34px}
  .trust{grid-template-columns:repeat(2,1fr)}
  .fcols{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .grid{grid-template-columns:1fr}
  nav.links{display:none}
  .tool-page h1{font-size:29px}
  .stat-grid{grid-template-columns:1fr}
}