/* ============================================================
   91bio.com 首页重做样式 (匹配改版原型) —— 仅首页 Index_index 引用
   容器复用站点 .w1200 (max 1200px)，配色与 redesign.css 一致
   ============================================================ */
:root{
  --green:#0F5C4E; --green-2:#0F7B6C; --green-d:#0A3D33;
  --amber:#E8A33D; --amber-d:#cf8a23;
  --ink:#1f2d2b; --muted:#5b6b67; --line:#e6ece9;
  --bg:#f5f7f6; --card:#ffffff; --radius:14px;
}
*{box-sizing:border-box}
body{font-family:"PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif}

/* ---------- Hero ---------- */
.hero{position:relative;background:radial-gradient(1200px 500px at 80% -10%,rgba(232,163,61,.22),transparent),linear-gradient(135deg,var(--green-d),var(--green-2));color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);background-size:26px 26px;opacity:.6}
.hero .w1200{position:relative;display:flex;align-items:center;gap:40px;padding:72px 18px 80px;flex-wrap:wrap}
.hero .copy{flex:1;min-width:320px}
.hero .tag{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:5px 14px;border-radius:30px;font-size:13px;letter-spacing:1px;margin-bottom:18px}
.hero h1{font-size:42px;line-height:1.25;font-weight:800;margin-bottom:18px}
.hero h1 span{color:var(--amber)}
.hero p.lead{font-size:17px;color:#d8ebe5;max-width:520px;margin-bottom:30px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:30px;font-weight:700;font-size:15px}
.btn.primary{background:var(--amber);color:#3a2a08}
.btn.ghost{border:1px solid rgba(255,255,255,.5);color:#fff}
.btn.primary:hover{background:var(--amber-d)}
.hero .stats{display:flex;gap:34px;margin-top:40px}
.hero .stats div b{display:block;font-size:28px;color:#fff}
.hero .stats div span{font-size:13px;color:#bcd9d1}
.hero .panel{flex:0 0 320px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:18px;padding:26px;backdrop-filter:blur(6px)}
.hero .panel h3{font-size:16px;margin-bottom:14px;color:#fff}
.hero .panel .row{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.18);font-size:14px;color:#e3f1ec}
.hero .panel .row:last-child{border:0}
.hero .panel .row b{color:var(--amber)}

/* ---------- 通用区块标题 ---------- */
.sec{padding:64px 0}
.sec-head{text-align:center;margin-bottom:42px}
.sec-head .k{color:var(--green-2);font-weight:700;letter-spacing:3px;font-size:13px}
.sec-head h2{font-size:30px;margin:10px 0 8px;color:var(--green-d)}
.sec-head p{color:var(--muted);font-size:15px}

/* ---------- 四大核心业务 ---------- */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.biz{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;transition:.22s;position:relative;overflow:hidden}
.biz:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(15,92,78,.12);border-color:var(--green-2)}
.biz .ic{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,#e7f3ef,#d3eae3);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:26px}
.biz h3{font-size:18px;color:var(--green-d);margin-bottom:8px}
.biz p{font-size:13.5px;color:var(--muted);min-height:58px}
.biz .more{margin-top:14px;color:var(--green-2);font-weight:600;font-size:14px;display:inline-block}
.biz .more:hover{color:var(--amber-d)}

/* ---------- 为什么选择九一生物 ---------- */
.adv{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.adv .item{display:flex;gap:16px;align-items:flex-start}
.adv .num{flex:0 0 46px;height:46px;border-radius:12px;background:var(--green);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center}
.adv h4{font-size:17px;color:var(--green-d);margin-bottom:6px}
.adv p{font-size:14px;color:var(--muted)}

/* ---------- 案例条 ---------- */
.cases{background:linear-gradient(135deg,var(--green-d),var(--green-2));color:#fff;border-radius:var(--radius);padding:38px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cases h3{font-size:22px;margin-bottom:8px}
.cases p{color:#cfe6df;font-size:14.5px;max-width:620px}
.cases .btn{background:#fff;color:var(--green-d)}
.cases .btn:hover{background:#eef5f2}

/* ---------- 技术动态与案例 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.news:hover{box-shadow:0 14px 34px rgba(15,92,78,.1)}
.news .thumb{height:150px;background:linear-gradient(135deg,#0F7B6C,#0A3D33);position:relative;display:flex;align-items:flex-end;padding:14px}
.news .thumb .cat{background:rgba(255,255,255,.18);color:#fff;font-size:12px;padding:3px 10px;border-radius:20px}
.news .body{padding:18px}
.news .body h3{font-size:16px;line-height:1.5;color:var(--ink);margin-bottom:10px}
.news .body h3 a{color:var(--ink)}
.news .body h3 a:hover{color:var(--green-2)}
.news .body .meta{font-size:12.5px;color:var(--muted)}

/* ---------- 询盘条 ---------- */
.inq{background:var(--amber);border-radius:var(--radius);padding:30px 36px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.inq h3{font-size:21px;color:#3a2a08}
.inq p{color:#5a4310;font-size:14px}
.inq .btn{background:var(--green-d);color:#fff}
.inq .btn:hover{background:#082e27}

/* ---------- 首屏信任背书标签 ---------- */
.trust-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16)}
.trust-chips span{font-size:12.5px;color:#cfe6df;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:6px 13px;border-radius:20px}

/* ---------- 核心数据条 ---------- */
.kpi-strip{background:linear-gradient(120deg,var(--green-d),#0b5140);color:#fff;padding:0;border-top:1px solid rgba(255,255,255,.08)}
.kpi-strip .w1200{padding:0 18px}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.kpi{padding:38px 18px;text-align:center;border-left:1px solid rgba(255,255,255,.1)}
.kpi:first-child{border-left:0}
.kpi .n{font-size:42px;font-weight:800;color:var(--amber);line-height:1.1;letter-spacing:-1px}
.kpi .n em{font-style:normal;font-size:19px;margin-left:3px;color:#e7d0a5}
.kpi>span{display:block;margin-top:8px;font-size:13.5px;color:#bcd9d1;letter-spacing:.5px}

/* ---------- 公司实力 ---------- */
.about-block{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.about-wrap{display:flex;gap:48px;align-items:center}
.about-wrap .photo{flex:0 0 46%;border-radius:var(--radius);overflow:hidden;box-shadow:0 18px 44px rgba(15,92,78,.14)}
.about-wrap .photo img{width:100%;height:auto;display:block}
.about-wrap .txt{flex:1;min-width:0}
.about-wrap .sec-head.left{text-align:left;margin-bottom:20px}
.about-wrap .txt p{font-size:14.5px;color:var(--muted);margin-bottom:14px;line-height:1.9}
.about-wrap .txt p.lead{font-size:16.5px;color:var(--ink);font-weight:600}
.about-wrap .txt strong{color:var(--green-d)}
.facts{list-style:none;margin:0 0 24px;padding:0}
.facts li{position:relative;padding-left:20px;font-size:14px;color:var(--ink);margin-bottom:9px}
.facts li i{position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:var(--amber)}
.btn.outline{background:transparent;border:1.5px solid var(--green-2);color:var(--green-d)}
.btn.outline:hover{background:var(--green-2);color:#fff}

/* ---------- 资质荣誉 ---------- */
.honors{background:var(--bg)}
.honor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.hon{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;display:flex;align-items:center;justify-content:center;min-height:150px;transition:.2s}
.hon:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(15,92,78,.12);border-color:var(--green-2)}
.hon img{max-width:100%;max-height:160px;width:auto;height:auto;object-fit:contain}

/* ---------- 响应式 ---------- */
@media(max-width:980px){
  .grid4,.grid3,.news-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:32px}
  .hero .panel{flex:1 1 100%}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .about-wrap{flex-direction:column;gap:28px}
  .about-wrap .photo{flex:none;width:100%}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .kpi{border-left:0;border-top:1px solid rgba(255,255,255,.12)}
  .kpi:nth-child(-n+2){border-top:0}
  .kpi .n{font-size:34px}
}
@media(max-width:620px){
  .grid4,.grid3,.news-grid{grid-template-columns:1fr}
  .hero .w1200{padding:48px 16px 54px}
  .hero .stats{gap:20px}
  .sec{padding:46px 0}
  .cases{flex-direction:column;align-items:flex-start;padding:26px}
  .inq{flex-direction:column;align-items:flex-start;padding:24px}
  .biz p{min-height:0}
  .honor-grid{gap:14px}
  .hon{padding:10px;min-height:110px}
  .hon img{max-height:110px}
  .trust-chips span{font-size:12px;padding:5px 11px}
  .about-wrap .txt p{font-size:14px}
  .kpi{padding:26px 12px}
}