/* ============================================================
   Scalpel 生物信息学 — 官网样式（参考 k2-filter 风格：企业级、留白、卡片）
   ============================================================ */
:root{
  --navy:#0b2e59;
  --navy-2:#123a6b;
  --blue:#1f6fb2;
  --cyan:#17b3c9;
  --accent:#2f86d6;
  --ink:#17222f;
  --muted:#5b6b7c;
  --line:#e6ebf1;
  --bg:#ffffff;
  --bg-soft:#f5f8fb;
  --radius:14px;
  --shadow:0 8px 30px rgba(11,46,89,.08);
  --shadow-lg:0 18px 50px rgba(11,46,89,.14);
  --maxw:1200px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:72px 0}
.section.soft{background:var(--bg-soft)}
.section-title{text-align:center;margin-bottom:38px}
.section-title h2{font-size:30px;margin:0 0 10px;color:var(--navy);letter-spacing:1px}
.section-title p{color:var(--muted);margin:0}
.section-title .bar{width:56px;height:4px;background:linear-gradient(90deg,var(--cyan),var(--accent));border-radius:2px;margin:14px auto 0}
.btn{display:inline-block;padding:11px 26px;border-radius:26px;border:1px solid var(--accent);color:var(--accent);font-size:14px;transition:.25s;cursor:pointer;background:#fff}
.btn:hover{background:var(--accent);color:#fff}
.btn.solid{background:linear-gradient(135deg,var(--blue),var(--cyan));border:none;color:#fff}
.btn.solid:hover{filter:brightness(1.06)}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--navy);font-size:20px;letter-spacing:.5px}
.brand .mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--navy),var(--cyan));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:900}
.brand small{display:block;font-size:11px;color:var(--muted);font-weight:500;letter-spacing:2px}
nav.main{display:flex;align-items:center;gap:4px}
nav.main a,nav.main .dd>span{display:block;padding:10px 15px;font-size:15px;color:#22303f;border-radius:8px;cursor:pointer;transition:.2s}
nav.main a:hover,nav.main .dd>span:hover{background:var(--bg-soft);color:var(--accent)}
nav.main a.active{color:var(--accent);font-weight:600}
.dd{position:relative}
.dd .menu{position:absolute;top:44px;left:0;min-width:210px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;display:none}
.dd:hover .menu{display:block}
.dd .menu a{display:block;padding:10px 14px;border-radius:8px;font-size:14px}
.head-right{display:flex;align-items:center;gap:12px}
.identity{display:flex;border:1px solid var(--line);border-radius:22px;overflow:hidden}
.identity button{border:none;background:#fff;padding:7px 16px;font-size:13px;cursor:pointer;color:var(--muted)}
.identity button.on{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;height:520px;overflow:hidden;color:#fff}
.hero .slide{position:absolute;inset:0;opacity:0;transition:opacity .8s;background-size:cover;background-position:center}
.hero .slide.on{opacity:1}
.hero .slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,26,48,.86),rgba(7,26,48,.42) 60%,rgba(7,26,48,.15))}
.hero .inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 22px;height:100%;display:flex;flex-direction:column;justify-content:center}
.hero h1{font-size:44px;line-height:1.25;margin:0 0 16px;letter-spacing:1px}
.hero p{font-size:17px;max-width:620px;color:rgba(255,255,255,.88);margin:0 0 26px}
.hero .tags{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.hero .tags span{padding:6px 16px;border:1px solid rgba(255,255,255,.4);border-radius:20px;font-size:13px}
.hero .dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.hero .dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer}
.hero .dots i.on{background:#fff;width:26px;border-radius:6px}

/* ---------- cards ---------- */
.grid{display:grid;gap:22px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.28s}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:#d6e4f2}
.card .thumb{height:170px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;color:#b8c6d6;font-size:13px}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:18px 20px 22px}
.card h3{margin:0 0 8px;font-size:17px;color:var(--navy)}
.card p{margin:0;color:var(--muted);font-size:13.5px}

/* feature (创新技术 style) */
.feature{display:flex;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.28s}
.feature:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.feature .ico{flex:0 0 136px;width:136px;height:136px;border-radius:20px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;overflow:hidden}
.feature h3{margin:0 0 6px;font-size:16px;color:var(--navy)}
.feature p{margin:0;font-size:13.5px;color:var(--muted)}

/* ---------- about text block ---------- */
.about-block{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.about-block h2{font-size:28px;color:var(--navy);margin:0 0 16px}
.about-block p{color:#41505f;font-size:15px;margin:0 0 14px}
.about-media{height:320px;border-radius:var(--radius);background:linear-gradient(135deg,#0b2e59,#17b3c9);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.85);font-size:13px;overflow:hidden}
.about-media img{width:100%;height:100%;object-fit:cover}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 14px}
.stat b{display:block;font-size:34px;color:var(--accent);letter-spacing:1px}
.stat span{color:var(--muted);font-size:13.5px}

/* ---------- partner logos ---------- */
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.logos div{height:64px;border:1px solid var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#7b8b9c;font-size:13px;background:#fff;text-align:center;padding:6px}
.logos div:hover{color:var(--accent);border-color:#cfe0f0}

/* ---------- left-text / right-image ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split .txt h2{font-size:26px;color:var(--navy);margin:0 0 14px}
.split .txt p{color:#41505f;margin:0 0 14px;font-size:15px}
.split .txt ul{margin:0 0 18px;padding-left:20px;color:#41505f;font-size:14.5px}
.split .media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);cursor:pointer}
.split .media img{width:100%;display:block}
.split .media .hint{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(7,26,48,.78));color:#fff;padding:26px 18px 14px;font-size:13.5px}
.split.rev{direction:rtl}
.split.rev>*{direction:ltr}

/* ---------- team ---------- */
.member{display:grid;grid-template-columns:220px 1fr;gap:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:20px;align-items:start}
.member .photo{width:220px;height:260px;border-radius:12px;background:linear-gradient(135deg,#e8f1fb,#d6ecf3);display:flex;align-items:center;justify-content:center;color:#93a6b8;overflow:hidden}
.member .photo img{width:100%;height:100%;object-fit:cover}
.member h3{margin:0 0 4px;font-size:19px;color:var(--navy)}
.member .aff{color:var(--muted);font-size:13.5px;margin:0 0 10px}
.member .stars{color:#f5a623;letter-spacing:2px;margin:0 0 12px;font-size:15px}
.member ul{margin:0;padding-left:18px;color:#41505f;font-size:14px}
.member ul li{margin:4px 0}

/* ---------- cases ---------- */
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:22px}
.case .head{padding:20px 24px;border-bottom:1px solid var(--line)}
.case .head h3{margin:0 0 4px;color:var(--navy);font-size:18px}
.case .head span{color:var(--muted);font-size:13px}
.case .body{padding:20px 24px}
.case .body p{color:#41505f;margin:0 0 12px;font-size:14.5px}
.case .figs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.case .figs figure{margin:0}
.case .figs .ph{height:150px;border-radius:10px;background:var(--bg-soft);border:1px dashed #cfdae6;display:flex;align-items:center;justify-content:center;color:#a8b8c8;font-size:12.5px}
.case .figs figcaption{font-size:12px;color:var(--muted);margin-top:6px;text-align:center}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:#33445a;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;outline:none;transition:.2s}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(47,134,214,.12)}
.field textarea{min-height:130px;resize:vertical}
.info-list{display:flex;flex-direction:column;gap:18px}
.info-list .item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.info-list .ico{flex:0 0 44px;height:44px;border-radius:10px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;font-size:20px}
.info-list h4{margin:0 0 4px;color:var(--navy);font-size:15px}
.info-list p{margin:0;color:var(--muted);font-size:13.5px}

/* ---------- footer ---------- */
footer.site{background:var(--navy);color:rgba(255,255,255,.72);padding:52px 0 22px;margin-top:20px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12)}
footer.site h4{color:#fff;font-size:15px;margin:0 0 14px}
footer.site a{display:block;color:rgba(255,255,255,.66);font-size:13.5px;padding:5px 0}
footer.site a:hover{color:#fff}
footer.site .copy{text-align:center;font-size:12.5px;padding-top:18px;color:rgba(255,255,255,.5)}
footer.site .copy a{display:inline;color:rgba(255,255,255,.6)}

/* ---------- modal (admin login / report) ---------- */
.modal{position:fixed;inset:0;background:rgba(7,26,48,.55);display:none;align-items:center;justify-content:center;z-index:200}
.modal.on{display:flex}
.modal .box{background:#fff;border-radius:16px;width:min(420px,92vw);padding:28px;box-shadow:var(--shadow-lg)}
.modal .box.wide{width:min(1080px,94vw);height:86vh;padding:0;overflow:hidden;display:flex;flex-direction:column}
.modal .box h3{margin:0 0 6px;color:var(--navy)}
.modal .box .sub{color:var(--muted);font-size:13px;margin:0 0 18px}
.modal .box .acts{display:flex;gap:12px;justify-content:flex-end;margin-top:18px}
.modal iframe{flex:1;width:100%;border:0}
.modal .frame-head{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--line)}
.form-msg{font-size:13px;margin-top:10px;min-height:18px}
.form-msg.err{color:#d9483b}
.form-msg.ok{color:#1f9d55}

/* ---------- misc ---------- */
.article{max-width:900px;margin:0 auto}
.article h1{color:var(--navy);font-size:32px}
.article h2{color:var(--navy);font-size:22px;margin-top:34px}
.article p{color:#41505f}
.timeline{border-left:2px solid var(--line);margin-left:10px;padding-left:26px}
.timeline .t{position:relative;margin-bottom:26px}
.timeline .t::before{content:"";position:absolute;left:-33px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--accent)}
.timeline .t b{color:var(--accent);font-size:17px}
.timeline .t h4{margin:4px 0;color:var(--navy)}
.timeline .t p{margin:0;color:var(--muted);font-size:14px}
@media(max-width:980px){
  .grid.c4,.grid.c3{grid-template-columns:repeat(2,1fr)}
  .about-block,.split,.contact-grid{grid-template-columns:1fr}
  .member{grid-template-columns:1fr}
  .member .photo{width:100%;height:220px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .logos{grid-template-columns:repeat(3,1fr)}
  nav.main{display:none}
  .hero h1{font-size:30px}
}
.badge{display:inline-block;font-size:12px;padding:2px 10px;border-radius:20px;background:rgba(31,111,178,.1);color:var(--accent);margin-left:8px}
.price-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.plan{border:2px solid var(--line);border-radius:var(--radius);padding:26px 22px;text-align:center;background:#fff}
.plan.hot{border-color:var(--accent);box-shadow:var(--shadow-lg)}
.plan h3{margin:0 0 6px;color:var(--navy)}
.plan .p{font-size:34px;font-weight:800;color:var(--accent);margin:6px 0}
.plan .p small{font-size:14px;color:var(--muted);font-weight:400}
.plan ul{list-style:none;padding:0;margin:16px 0 20px;text-align:left;color:#41505f;font-size:13.5px}
.plan ul li{padding:6px 0;border-bottom:1px solid var(--line)}

/* admin edit mode: highlight editable text */
body.admin-mode [data-content][contenteditable="true"]{outline:1px dashed rgba(47,134,214,.65);outline-offset:3px;border-radius:4px;background:rgba(47,134,214,.05)}
@media(max-width:760px){.case .body{grid-template-columns:1fr !important}.case .figs{grid-template-columns:1fr 1fr}}

/* 管理员图片行：路径 + 本机选择 + 缩略预览 */
.imgrow{display:flex;gap:10px;align-items:center;margin-top:6px}
.imgrow .imgpath{flex:1;min-width:0;padding:9px 12px;border:1px solid var(--line);border-radius:8px;font-size:13px;font-family:inherit;outline:none}
.imgrow .imgpath:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(47,134,214,.12)}
.imgrow .pick{flex:0 0 auto;padding:8px 14px;border:1px solid var(--accent);color:var(--accent);border-radius:8px;font-size:13px;cursor:pointer;white-space:nowrap}
.imgrow .pick:hover{background:var(--accent);color:#fff}
.imgrow .imgprev{flex:0 0 auto;width:52px;height:52px;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:var(--bg-soft)}
.feature .ico img{width:100%;height:100%;object-fit:contain;object-position:center;display:block}