:root{--navy:#08283f;--blue:#0b66b2;--cyan:#18a8b8;--ink:#142430;--muted:#697b88;--line:#dbe6ed;--soft:#f4f8fb;--white:#fff;--radius:20px;--shadow:0 18px 55px rgba(7,40,63,.11)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7}a{text-decoration:none;color:inherit}.container{width:min(1180px,92%);margin:auto}.eyebrow{color:var(--cyan);font-size:13px;letter-spacing:.16em;font-weight:800;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(42px,5vw,70px);line-height:1.08;letter-spacing:-.035em}h2{font-size:clamp(30px,3.2vw,44px);line-height:1.18;letter-spacing:-.02em}h3{font-size:21px}.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:999px;font-weight:700;transition:.25s;border:1px solid transparent}.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(11,102,178,.25)}.btn-outline{border-color:#cbdbe5;background:#fff;color:var(--navy)}.btn-outline:hover{border-color:var(--blue);color:var(--blue)}.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;margin-left:10px}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(8,40,63,.08)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--navy)}.logo{width:42px;height:42px;border-radius:12px;background:linear-gradient(145deg,var(--blue),var(--cyan));position:relative;box-shadow:0 10px 25px rgba(11,94,168,.18)}.logo:before,.logo:after{content:"";position:absolute;background:#fff;border-radius:10px}.logo:before{width:20px;height:5px;left:11px;top:18px}.logo:after{width:5px;height:20px;left:18px;top:11px}.brand small{display:block;color:#70818c;font-size:10px;letter-spacing:.1em}nav ul{display:flex;gap:24px;list-style:none;padding:0;margin:0;font-size:14px;color:#314756}nav a{position:relative;padding:28px 0}nav a:hover,nav a.active{color:var(--blue)}nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:18px;height:2px;background:var(--blue)}.menu-btn{display:none;border:0;background:none;font-size:25px;color:var(--navy)}
.hero{min-height:700px;display:flex;align-items:center;color:#fff;overflow:hidden;position:relative;background:radial-gradient(circle at 79% 26%,rgba(24,168,184,.35),transparent 26%),radial-gradient(circle at 70% 74%,rgba(47,133,198,.22),transparent 25%),linear-gradient(120deg,#071d2d 0%,#0a3552 58%,#0b6482 100%)}.hero:after{content:"";position:absolute;right:-5%;top:14%;width:560px;height:560px;border:1px solid rgba(255,255,255,.16);border-radius:50%;box-shadow:0 0 0 58px rgba(255,255,255,.035),0 0 0 116px rgba(255,255,255,.02)}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;position:relative;z-index:2}.hero p{font-size:18px;color:rgba(255,255,255,.78);max-width:690px}.hero-card{padding:30px;border-radius:28px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(8px);box-shadow:0 26px 70px rgba(0,0,0,.18)}.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}.metric{padding:18px;background:rgba(255,255,255,.07);border-radius:15px}.metric strong{display:block;font-size:20px}.hero-actions{margin-top:30px}
.page-hero{padding:88px 0 68px;color:#fff;background:linear-gradient(120deg,#071d2d,#0c4967)}.page-hero p{max-width:760px;color:rgba(255,255,255,.75);font-size:17px}.breadcrumb{font-size:13px;color:rgba(255,255,255,.64);margin-bottom:18px}.breadcrumb a:hover{color:#fff}
section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:40px}.section-head p{max-width:600px;margin-bottom:4px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.card{display:block;padding:30px;background:#fff;border:1px solid #e3ebf0;border-radius:var(--radius);transition:.28s;min-height:230px}.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}.card .icon{width:46px;height:46px;border-radius:14px;background:#eaf5fa;color:var(--blue);display:grid;place-items:center;font-weight:900;margin-bottom:26px}.card .more{margin-top:22px;color:var(--blue);font-size:14px;font-weight:800}.soft{background:var(--soft)}.dark{background:var(--navy);color:#fff}.dark .muted{color:rgba(255,255,255,.67)}.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:64px;align-items:center}.visual{min-height:460px;border-radius:28px;background:linear-gradient(180deg,rgba(8,31,48,.05),rgba(8,31,48,.55)),radial-gradient(circle at 32% 24%,#8bd6df 0,transparent 22%),linear-gradient(135deg,#dceff5,#55a6be 60%,#174b67);box-shadow:var(--shadow);position:relative;overflow:hidden}.visual:after{content:"CLINICAL RESEARCH";position:absolute;left:28px;bottom:25px;color:#fff;font-size:13px;letter-spacing:.22em;font-weight:800}.checks{display:grid;gap:14px;margin-top:24px}.check{display:flex;gap:15px;padding:16px 0;border-bottom:1px solid var(--line)}.dark .check{border-color:rgba(255,255,255,.13)}.check b{width:30px;height:30px;flex:0 0 30px;border-radius:50%;display:grid;place-items:center;background:#e8f7f8;color:var(--cyan)}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:28px}.timeline .step{padding:22px;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.05);border-radius:16px}.timeline .step span{display:block;color:#83dce5;font-size:12px;font-weight:800;margin-bottom:6px}
.feature-list{display:grid;gap:18px}.feature{padding:22px 0;border-bottom:1px solid var(--line)}.feature strong{display:block;color:var(--navy);font-size:18px;margin-bottom:5px}.case-strip{display:grid;grid-template-columns:repeat(4,1fr);box-shadow:var(--shadow);border-radius:22px;overflow:hidden;background:#fff;margin-top:-42px;position:relative;z-index:4}.case-strip div{padding:28px;border-right:1px solid var(--line)}.case-strip div:last-child{border-right:0}.case-strip strong{display:block;color:var(--navy);font-size:19px}.article-list{display:grid;gap:16px}.article{display:grid;grid-template-columns:150px 1fr;gap:24px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px;transition:.25s}.article:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.article-date{font-size:13px;color:var(--cyan);font-weight:800}.article h3{margin-bottom:8px}.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}.contact-card{padding:30px;border:1px solid var(--line);border-radius:20px;background:#fff}.contact-card strong{display:block;font-size:22px;color:var(--navy);margin-bottom:7px}.cta{margin-top:34px;background:linear-gradient(110deg,#0a2b44,#0d6b88);color:#fff;border-radius:28px;padding:46px;display:flex;justify-content:space-between;align-items:center;gap:30px}footer{background:#061924;color:rgba(255,255,255,.72);padding:48px 0 26px}.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}footer h4{color:#fff;margin-top:0}footer a{display:block;margin:8px 0;font-size:14px}.copyright{margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}.reveal{opacity:0;transform:translateY(20px);transition:.65s ease}.reveal.show{opacity:1;transform:none}
@media(max-width:930px){nav{position:absolute;left:0;right:0;top:78px;background:#fff;border-bottom:1px solid var(--line);display:none}nav.open{display:block}nav ul{display:block;padding:12px 4% 20px}nav a{display:block;padding:12px 0}nav a.active:after{display:none}.menu-btn{display:block}.nav>.btn{display:none}.hero{min-height:auto;padding:88px 0}.hero-grid,.split{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr 1fr}.timeline{grid-template-columns:1fr 1fr}.case-strip{grid-template-columns:1fr 1fr}.section-head,.cta{align-items:flex-start;flex-direction:column}}
@media(max-width:620px){h1{font-size:42px}.brand .full{display:none}.grid-3,.grid-2,.timeline,.case-strip,.contact-cards,.foot-grid{grid-template-columns:1fr}.case-strip div{border-right:0;border-bottom:1px solid var(--line)}.article{grid-template-columns:1fr}section{padding:68px 0}.btn-ghost{margin-left:0;margin-top:10px}.cta{padding:30px}}