:root{
  --primary:#2b9c8f;
  --primary-dark:#1f7a70;
  --accent:#f0a13a;
  --text:#2d3340;
  --text-light:#6b7280;
  --bg:#ffffff;
  --bg-soft:#f5f8f7;
  --border:#e6ecea;
  --radius:14px;
  --shadow:0 8px 30px rgba(0,0,0,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;color:var(--text);line-height:1.7;background:var(--bg)}
a{text-decoration:none;color:inherit}
.container{max-width:1140px;margin:0 auto;padding:0 24px}
.hl{color:var(--primary)}

/* 顶部信息条 */
.topbar{background:var(--primary-dark);color:#fff;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;padding:6px 24px;flex-wrap:wrap;gap:4px}
.topbar-right a{color:#fff;font-weight:600}

/* 导航 */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);box-shadow:0 2px 12px rgba(0,0,0,.05)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px}
.logo-img{height:44px;width:auto;max-width:200px;display:block;object-fit:contain}
.footer-logo{height:60px;width:auto;margin-bottom:10px;background:#fff;border-radius:10px;padding:6px}
.logo-icon{font-size:28px}
.logo-text{font-size:20px;font-weight:700;display:flex;flex-direction:column;line-height:1.1}
.logo-text small{font-size:11px;font-weight:400;color:var(--primary);letter-spacing:2px}
.menu{display:flex;gap:4px}
.menu a{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--text);transition:.2s}
.menu a:hover,.menu a.active{color:var(--primary);background:var(--bg-soft)}
.btn{display:inline-block;padding:11px 24px;border-radius:30px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:.2s}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 6px 18px rgba(43,156,143,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(43,156,143,.45)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.15)}
.btn-nav{background:var(--primary);color:#fff;padding:9px 20px}
.btn-block{display:block;width:100%;text-align:center}
.hamburger{display:none;font-size:26px;background:none;border:none;cursor:pointer;color:var(--text)}

/* Hero */
.hero{background:linear-gradient(135deg,#1f7a70 0%,#2b9c8f 55%,#3ab8a7 100%);color:#fff;padding:90px 0;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-80px;bottom:-80px;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.06)}
.hero-inner{display:flex;align-items:center;justify-content:space-between;gap:50px}
.hero-text{flex:1}
.hero-tag{letter-spacing:4px;font-size:13px;color:rgba(255,255,255,.75);margin-bottom:16px}
.hero h1{font-size:52px;line-height:1.2;margin-bottom:18px}
.hero h1 .hl{color:#ffd98a}
.hero-sub{font-size:18px;color:rgba(255,255,255,.92);margin-bottom:30px;line-height:1.8}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:#fff;color:var(--text);border-radius:18px;padding:34px;width:340px;flex-shrink:0;box-shadow:0 20px 50px rgba(0,0,0,.18)}
.hero-card-title{font-size:20px;font-weight:700;margin-bottom:20px;color:var(--primary-dark)}
.hero-list{list-style:none;margin-bottom:24px}
.hero-list li{padding:9px 0;border-bottom:1px dashed var(--border);font-size:15px}

/* 通用 section */
.section{padding:80px 0}
.section-title{font-size:34px;text-align:center;margin-bottom:12px}
.section-sub{text-align:center;color:var(--text-light);margin-bottom:48px;font-size:16px}

/* 优势 */
.feature{background:var(--bg-soft)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-item{background:#fff;border-radius:var(--radius);padding:32px 24px;box-shadow:var(--shadow);transition:.25s;text-align:center}
.feature-item:hover{transform:translateY(-6px)}
.feature-icon{font-size:44px;margin-bottom:16px}
.feature-item h3{font-size:19px;margin-bottom:10px;color:var(--primary-dark)}
.feature-item p{font-size:14px;color:var(--text-light)}

/* 关于 */
.about-inner{display:flex;align-items:center;gap:50px}
.about-img{flex:1;min-height:360px;border-radius:var(--radius);background:linear-gradient(135deg,#c7e9e4,#2b9c8f);position:relative}
.about-img::after{content:"🦷";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:90px;opacity:.85}
.about-text{flex:1}
.about-text .section-title{text-align:left}
.about-text p{margin-bottom:16px;color:#4a5160}
.about-text strong{color:var(--primary-dark)}

/* 服务 */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-item{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:30px;transition:.25s}
.service-item:hover{border-color:var(--primary);box-shadow:var(--shadow);transform:translateY(-4px)}
.service-item h3{font-size:18px;margin-bottom:12px;color:var(--primary-dark)}
.service-item p{font-size:14px;color:var(--text-light)}

/* 医生 */
.doctors{background:var(--bg-soft)}
.doctor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.doctor-card{background:#fff;border-radius:var(--radius);padding:36px 28px;text-align:center;box-shadow:var(--shadow);transition:.25s}
.doctor-card:hover{transform:translateY(-6px)}
.doctor-avatar{width:96px;height:96px;border-radius:50%;background:linear-gradient(135deg,#c7e9e4,#2b9c8f);display:flex;align-items:center;justify-content:center;font-size:48px;margin:0 auto 18px}
.doctor-card h3{font-size:20px;margin-bottom:6px}
.doctor-title{color:var(--primary);font-size:14px;font-weight:600;margin-bottom:14px}
.doctor-bio{font-size:14px;color:var(--text-light)}

/* 流程 */
.process-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step{text-align:center;padding:26px 16px;background:var(--bg-soft);border-radius:var(--radius);position:relative}
.step-num{display:inline-flex;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;font-size:20px;align-items:center;justify-content:center;margin-bottom:14px}
.step h3{font-size:16px;margin-bottom:8px;color:var(--primary-dark)}
.step p{font-size:13px;color:var(--text-light)}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{background:var(--bg-soft);border-radius:var(--radius);padding:30px;border-top:4px solid var(--primary)}
.case-tag{display:inline-block;background:var(--accent);color:#fff;font-size:12px;padding:3px 12px;border-radius:20px;margin-bottom:14px}
.case-card h3{font-size:18px;margin-bottom:10px}
.case-card p{font-size:14px;color:var(--text-light)}
.case-note{text-align:center;color:var(--text-light);font-size:13px;margin-top:30px}

/* 联系 */
.contact{background:linear-gradient(135deg,#1f7a70,#2b9c8f);color:#fff}
.contact .section-title{color:#fff}
.contact .section-sub{color:rgba(255,255,255,.8)}
.contact .hl{color:#ffd98a}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info{background:rgba(255,255,255,.1);border-radius:var(--radius);padding:34px}
.contact-row{display:flex;gap:16px;margin-bottom:26px}
.contact-row:last-child{margin-bottom:0}
.c-icon{font-size:26px;flex-shrink:0}
.contact-row h4{font-size:16px;margin-bottom:4px;color:#ffd98a}
.contact-row p{font-size:15px;color:rgba(255,255,255,.92)}
.contact-row a{color:#fff;font-weight:600;text-decoration:underline}
.contact-form{background:#fff;border-radius:var(--radius);padding:34px;box-shadow:0 20px 50px rgba(0,0,0,.2)}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:13px 16px;margin-bottom:16px;border:1.5px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;color:var(--text);background:#fff}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary)}
.form-tip{font-size:12px;color:var(--text-light);text-align:center;margin-top:12px;color:#98a0ac}

/* 底部 */
.footer{background:#1b2a28;color:rgba(255,255,255,.8);padding:50px 0 30px}
.footer-inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:10px;font-size:13px}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.footer-links a:hover{color:#ffd98a}
.footer-copy{font-size:12px;color:rgba(255,255,255,.5);width:100%;text-align:center;border-top:1px solid rgba(255,255,255,.1);padding-top:20px;margin-top:10px}

/* 浮动按钮 */
.float-btn{position:fixed;right:24px;bottom:24px;background:var(--accent);color:#fff;padding:14px 20px;border-radius:50px;font-weight:600;display:flex;align-items:center;gap:8px;box-shadow:0 8px 24px rgba(240,161,58,.5);z-index:99;transition:.2s}
.float-btn:hover{transform:translateY(-3px)}
.float-btn span{font-size:14px}

/* 响应式 */
@media(max-width:900px){
  .menu{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:20px;box-shadow:0 10px 20px rgba(0,0,0,.1);display:none}
  .menu.open{display:flex}
  .menu a{padding:12px;text-align:center}
  .hamburger{display:block}
  .logo-img{height:40px}
  .btn-nav{display:none}
  .hero{padding:60px 0}
  .hero-inner{flex-direction:column;text-align:center}
  .hero h1{font-size:38px}
  .hero-btns{justify-content:center}
  .hero-card{width:100%;max-width:420px}
  .feature-grid,.service-grid,.doctor-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .about-inner,.contact-grid{flex-direction:column;grid-template-columns:1fr}
  .about-inner{flex-direction:column}
  .about-img{width:100%;min-height:260px}
}
@media(max-width:560px){
  .hero h1{font-size:30px}
  .section{padding:56px 0}
  .section-title{font-size:26px}
  .feature-grid,.service-grid,.doctor-grid,.case-grid,.process-steps{grid-template-columns:1fr}
  .topbar-inner{justify-content:center;text-align:center}
}