/* 知识浏览助手 · 应用官网样式 */
:root{
  --brand:#1f9d55;
  --brand-dark:#167a41;
  --brand-soft:#eaf7ef;
  --ink:#16211c;
  --ink-2:#4b5a53;
  --ink-3:#7f8d87;
  --line:#e5ebe8;
  --bg:#ffffff;
  --bg-soft:#f7faf8;
  --warn:#a35a00;
  --warn-bg:#fff8e8;
  --warn-line:#f2dcae;
  --radius:14px;
  --maxw:1060px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.75;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* header */
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:62px}
.logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px;color:var(--ink)}
.logo-mark{
  width:30px;height:30px;border-radius:9px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.logo-mark svg{display:block}
.nav{display:flex;gap:22px;margin-left:auto;font-size:14px}
.nav a{color:var(--ink-2)}
.nav a:hover{color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 18px;border-radius:10px;font-size:14px;font-weight:500;
  border:1px solid transparent;cursor:pointer;transition:.16s;
  font-family:inherit;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:#c9d8cf;color:var(--brand)}
.btn-block{width:100%}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:6px 10px;font-size:14px;cursor:pointer;font-family:inherit}

/* hero */
.hero{padding:56px 0 40px;background:linear-gradient(180deg,var(--bg-soft),#fff)}
.hero h1{margin:0 0 14px;font-size:32px;line-height:1.35;letter-spacing:-.3px;font-weight:600}
.hero p.lead{margin:0 0 26px;font-size:16px;color:var(--ink-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;font-size:13px;color:var(--ink-3)}

/* notice */
.notice{
  display:flex;gap:12px;
  background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:var(--radius);
  padding:16px 18px;margin:0 0 34px;
}
.notice-icon{
  flex:none;width:20px;height:20px;border-radius:50%;background:var(--warn);color:#fff;
  font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.notice-title{font-weight:600;color:var(--warn);margin:0 0 4px;font-size:14px}
.notice p{margin:0 0 4px;font-size:14px;color:#6b4a12;line-height:1.7}
.notice p:last-child{margin-bottom:0}

/* sections */
section{padding:44px 0}
section.soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2.sec-title{margin:0 0 8px;font-size:22px;font-weight:600;letter-spacing:-.2px}
p.sec-sub{margin:0 0 28px;color:var(--ink-2);font-size:14px}

/* cards */
.grid{display:grid;gap:16px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;transition:.16s;
}
.card:hover{border-color:#c9d8cf;box-shadow:0 4px 16px rgba(22,33,28,.05)}
.card h3{margin:12px 0 6px;font-size:16px;font-weight:600}
.card p{margin:0;font-size:14px;color:var(--ink-2)}
.card .ico{
  width:34px;height:34px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}

/* steps */
.steps{counter-reset:s;display:grid;gap:14px}
.step{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:16px 18px;
}
.step-no{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand);color:#fff;
  font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.step h4{margin:0 0 3px;font-size:15px;font-weight:600}
.step p{margin:0;font-size:14px;color:var(--ink-2)}

/* faq */
details.faq{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;margin-bottom:10px;
}
details.faq summary{
  cursor:pointer;font-weight:500;font-size:15px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";color:var(--ink-3);font-size:18px;line-height:1}
details.faq[open] summary::after{content:"−"}
details.faq p{margin:10px 0 0;font-size:14px;color:var(--ink-2)}

/* forms */
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;max-width:420px;margin:0 auto;
}
.form-card h2{margin:0 0 6px;font-size:20px;font-weight:600}
.form-card .hint{margin:0 0 24px;font-size:13px;color:var(--ink-3)}
.tabs{display:flex;gap:6px;background:var(--bg-soft);border-radius:10px;padding:4px;margin-bottom:20px}
.tabs button{
  flex:1;border:0;background:transparent;padding:8px;border-radius:8px;
  font-size:14px;color:var(--ink-2);cursor:pointer;font-family:inherit;
}
.tabs button.active{background:#fff;color:var(--brand);font-weight:500;box-shadow:0 1px 3px rgba(22,33,28,.07)}
label.field{display:block;margin-bottom:16px}
label.field span{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
input[type=text],input[type=tel],input[type=password]{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  font-size:15px;font-family:inherit;color:var(--ink);background:#fff;
}
input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.row-inline{display:flex;gap:10px}
.row-inline input{flex:1}
.row-inline button{white-space:nowrap}
.form-error{
  display:none;margin:0 0 16px;padding:10px 12px;border-radius:9px;
  background:#fdecec;border:1px solid #f5c2c2;color:#9b2c2c;font-size:13px;
}
.form-error.show{display:block}
.mock-tip{
  margin:18px 0 0;padding:10px 12px;border-radius:9px;
  background:var(--brand-soft);border:1px solid #cbe6d6;color:var(--brand-dark);font-size:13px;
}

/* account */
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;margin-bottom:18px;
}
.panel-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px}
.panel-head h3{margin:0;font-size:17px;font-weight:600}
.panel-head .spacer{margin-left:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-size:13px;color:var(--ink-3);font-weight:500;background:var(--bg-soft)}
td.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}
.table-scroll{overflow-x:auto;margin:0 -4px}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:500}
.tag-ok{background:var(--brand-soft);color:var(--brand-dark)}
.tag-wait{background:#fdf0dd;color:#8a5300}
.tag-off{background:#f1f2f1;color:#6b7671}
.empty{padding:26px 0;text-align:center;color:var(--ink-3);font-size:14px}

/* doc list */
.doc-item{
  display:flex;align-items:center;gap:14px;padding:14px;border:1px solid var(--line);
  border-radius:12px;margin-bottom:10px;
}
.doc-item .doc-ico{
  width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;flex:none;font-size:13px;font-weight:600;
}
.doc-item .doc-info{min-width:0}
.doc-item h4{margin:0 0 2px;font-size:15px;font-weight:500}
.doc-item .doc-sub{font-size:12px;color:var(--ink-3);overflow:hidden;text-overflow:ellipsis}
.doc-item .doc-act{margin-left:auto;display:flex;gap:8px;flex:none}

/* legal */
.legal{max-width:760px}
.legal h2{font-size:20px;font-weight:600;margin:34px 0 10px}
.legal h2:first-child{margin-top:0}
.legal h3{font-size:16px;font-weight:600;margin:22px 0 8px}
.legal p,.legal li{font-size:14.5px;color:var(--ink-2)}
.legal ol,.legal ul{padding-left:22px}
.legal li{margin-bottom:6px}
.updated{font-size:13px;color:var(--ink-3);margin-bottom:26px}

/* footer */
.site-footer{
  background:#16211c;color:#c6d2cb;padding:40px 0 30px;font-size:13.5px;margin-top:20px;
}
.site-footer a{color:#9fe1cb}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:28px;margin-bottom:26px}
.footer-grid h5{margin:0 0 10px;font-size:14px;color:#fff;font-weight:500}
.footer-grid p{margin:0 0 6px;line-height:1.8}
.footer-grid ul{list-style:none;margin:0;padding:0}
.footer-grid li{margin-bottom:6px}
.footer-bottom{
  border-top:1px solid #2a3730;padding-top:18px;display:flex;flex-wrap:wrap;gap:10px 20px;
  font-size:12.5px;color:#8fa196;
}
.footer-bottom .beian{margin-left:auto}

/* responsive */
@media(max-width:860px){
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:25px}
  .nav{
    display:none;position:absolute;top:62px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:8px 22px 16px;border-bottom:1px solid var(--line);
  }
  .nav.open{display:flex}
  .nav a{padding:10px 0;border-bottom:1px solid var(--line)}
  .menu-toggle{display:block;margin-left:auto}
  .header-inner .btn-login{display:none}
}