/* 天智文库 · 知识产权栏目 */
:root{
  --bg:#FAF7F0;
  --paper:#fffdf8;
  --card:#ffffff;
  --ink:#1f2f26;
  --text:#2d2a26;
  --muted:#756d63;
  --green:#2E6B47;
  --green2:#1f7a4d;
  --gold:#B8963E;
  --orange:#D07830;
  --line:#E8E2D6;
  --soft:#eef7f1;
  --shadow:0 18px 45px rgba(45,32,18,.08);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.82;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.site-nav{position:sticky;top:0;z-index:50;background:rgba(250,247,240,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px}
.brand{display:flex;align-items:center;gap:8px;color:var(--green);font-weight:800;letter-spacing:.04em}
.brand::before{content:"◈";font-size:13px;color:var(--gold)}
.nav-links{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:14px;white-space:nowrap}
.nav-links a{padding:4px 0}.nav-links a:hover{color:var(--green)}
.hero{max-width:920px;margin:0 auto;padding:44px 20px 28px;text-align:center}
.kicker{font-size:13px;color:var(--gold);font-weight:700;letter-spacing:.28em;margin-bottom:12px}
h1{font-family:"Songti SC",STSong,SimSun,serif;color:var(--green);font-size:42px;line-height:1.18;margin:0 0 12px;letter-spacing:.08em}
.hero-sub{color:var(--muted);font-size:17px;max-width:660px;margin:0 auto;line-height:1.85}
.rule{width:46px;height:3px;background:var(--gold);border-radius:3px;margin:20px auto 0}
.wrap{max-width:920px;margin:0 auto;padding:0 20px 46px}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}
.entry-card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:22px 20px;box-shadow:var(--shadow);transition:transform .18s, box-shadow .18s, border-color .18s;min-height:150px;display:flex;flex-direction:column;justify-content:space-between}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(46,107,71,.32);box-shadow:0 22px 54px rgba(45,32,18,.11)}
.entry-title{font-size:22px;font-weight:800;color:var(--green);margin-bottom:8px;font-family:"Songti SC",STSong,SimSun,serif;letter-spacing:.04em}
.entry-desc{color:var(--muted);font-size:15px;line-height:1.75;margin-bottom:16px}.entry-more{color:var(--green);font-weight:700;font-size:14px}.entry-more::after{content:" →"}
.article{background:var(--paper);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:38px 42px;margin-top:16px}
.article h2{font-family:"Songti SC",STSong,SimSun,serif;color:var(--green);font-size:30px;line-height:1.35;margin:4px 0 18px;letter-spacing:.04em}.article h3{font-family:"Songti SC",STSong,SimSun,serif;color:#213d2e;font-size:23px;line-height:1.45;margin:34px 0 10px}.article h4{font-size:18px;color:var(--green);margin:20px 0 8px}.article p{font-size:17px;line-height:1.95;margin:0 0 14px}.article ul,.article ol{padding-left:1.35em;margin:10px 0 18px}.article li{font-size:17px;line-height:1.9;margin:4px 0}.article strong{color:var(--green)}
.notice{background:linear-gradient(135deg,#fffaf0,#f4fbf6);border:1px solid #cfe3d4;border-left:4px solid var(--green);border-radius:0 16px 16px 0;padding:16px 18px;margin:18px 0;color:#284532}.soft-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 18px;margin:16px 0}.patent-list{counter-reset:patent}.patent{background:#fff;border:1px solid var(--line);border-radius:16px;padding:15px 16px 15px 54px;margin:10px 0;position:relative}.patent::before{counter-increment:patent;content:counter(patent);position:absolute;left:16px;top:16px;width:26px;height:26px;border-radius:50%;background:var(--soft);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}.patent-title{font-weight:750;color:#2d2a26;line-height:1.7}
.page-actions{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0 0}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:10px 18px;background:var(--green);color:#fff;font-weight:750;border:1px solid var(--green)}.btn.secondary{background:transparent;color:var(--green)}
.footer{border-top:1px solid var(--line);color:#8a8175;text-align:center;font-size:13px;padding:28px 18px 34px;margin-top:10px}.footer a{text-decoration:underline;text-underline-offset:3px}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.badge{display:inline-flex;border-radius:999px;padding:6px 12px;background:#fff;border:1px solid var(--line);color:var(--green);font-size:13px;font-weight:700}.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.mini-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.mini-card h4{margin-top:0}
@media(max-width:700px){.site-nav{padding:10px 14px}.nav-links{gap:9px;font-size:13px}.hero{padding:34px 18px 20px}h1{font-size:34px}.hero-sub{font-size:15px}.wrap{padding:0 14px 36px}.card-grid,.two-col{grid-template-columns:1fr}.article{border-radius:20px;padding:26px 20px}.article h2{font-size:27px}.article h3{font-size:21px}.article p,.article li{font-size:16px;line-height:1.92}.patent{padding-left:48px}.entry-card{min-height:auto}}

.site-nav .nav-links a.active{background:#2E6B47;color:#fff;}

@media (max-width: 760px){
  .site-nav{padding:10px 12px;}
  .site-nav .brand{font-size:15px;}
  .site-nav .nav-links{gap:2px;flex-wrap:wrap;justify-content:flex-end;}
  .site-nav .nav-links a{font-size:13px;padding:6px 7px;}
}