/* ============================================================
   韦翰斯生物 - 主样式表 (完整版)
   白青蓝清爽科技风格 | 适配响应式布局
   ============================================================ */

/* ---------- 自定义属性 (设计令牌) ---------- */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --cyan-50: #ecfeff;
    --cyan-100: #cffafe;
    --cyan-200: #a5f3fc;
    --cyan-300: #67e8f9;
    --cyan-400: #22d3ee;
    --cyan-500: #06b6d4;
    --cyan-600: #0891b2;
    --cyan-700: #0e7490;
    --cyan-800: #155e75;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-light: #a0aec0;
    --border-light: #e2e8f0;
    --border-medium: #cbd5e0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 2px 6px rgba(0,0,0,0.04);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 60px rgba(6,182,212,0.12), 0 8px 24px rgba(0,0,0,0.06);
    --shadow-cyan: 0 8px 32px rgba(6,182,212,0.18), 0 2px 8px rgba(6,182,212,0.08);
    --radius-xs: 6px;
    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --max-width: 1260px;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body { font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif; background: var(--bg-primary); color: var(--text-primary); line-height: 1.7; -webkit-font-smoothing: antialiased; letter-spacing: -0.01em; overflow-x: hidden; }
img, svg { display:block; max-width:100%; height:auto; }
a { text-decoration:none; color:inherit; transition:color var(--transition); }
button { font-family:inherit; cursor:pointer; }
ul, ol { list-style:none; }

/* ---------- 导航栏 ---------- */
.navbar { position:fixed; top:0; left:0; right:0; z-index:1000; padding:14px 0; transition:all var(--transition-smooth); background:rgba(255,255,255,0.88); backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); border-bottom:1px solid transparent; }
.navbar.scrolled { background:rgba(255,255,255,0.96); border-bottom:1px solid var(--border-light); box-shadow:var(--shadow-sm); padding:10px 0; }
.navbar-inner { max-width:var(--max-width); margin:0 auto; padding:0 32px; display:flex; align-items:center; justify-content:space-between; }
.logo { display:flex; align-items:center; gap:10px; font-weight:700; font-size:1.45rem; color:var(--text-primary); z-index:1001; }
.logo-icon { width:38px; height:38px; border-radius:10px; background:linear-gradient(135deg, var(--cyan-500), var(--teal-500)); display:flex; align-items:center; justify-content:center; font-size:1.1rem; color:#fff; box-shadow:0 4px 14px rgba(6,182,212,0.3); transition:all var(--transition); }
.logo:hover .logo-icon { box-shadow:0 6px 22px rgba(6,182,212,0.45); transform:scale(1.04); }
.logo-text { font-weight:700; } .logo-text .accent { color:var(--cyan-600); }
.nav-links { display:flex; gap:4px; align-items:center; }
.nav-links a { padding:10px 18px; border-radius:30px; font-weight:500; font-size:0.93rem; color:var(--text-secondary); letter-spacing:0.2px; transition:all var(--transition); }
.nav-links a:hover, .nav-links a.active { color:var(--cyan-700); background:var(--cyan-50); }
.nav-links a.active { font-weight:600; color:var(--cyan-600); }
.nav-cta { background:linear-gradient(135deg, var(--cyan-500), var(--teal-500))!important; color:#fff!important; padding:10px 22px!important; font-weight:600!important; box-shadow:0 4px 16px rgba(6,182,212,0.28); margin-left:8px; }
.nav-cta:hover { box-shadow:0 6px 24px rgba(6,182,212,0.4)!important; transform:translateY(-2px); background:linear-gradient(135deg, var(--cyan-600), var(--teal-600))!important; color:#fff!important; }
.hamburger { display:none; flex-direction:column; gap:5px; padding:8px; background:none; border:none; z-index:1001; cursor:pointer; }
.hamburger span { width:26px; height:2.5px; background:var(--text-primary); border-radius:2px; transition:all var(--transition); display:block; }
.hamburger.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity:0; }
.hamburger.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

/* ---------- 首页英雄区 ---------- */
.hero { min-height:100vh; display:flex; align-items:center; position:relative; overflow:hidden; background:linear-gradient(180deg, #ffffff 0%, #f7fafc 40%, #ecfeff 100%); padding-top:70px; }
.hero-bg-shapes { position:absolute; inset:0; pointer-events:none; z-index:0; overflow:hidden; }
.hero-circle { position:absolute; border-radius:50%; opacity:0.5; }
.hc1 { width:600px; height:600px; background:radial-gradient(circle, rgba(6,182,212,0.12) 0%, transparent 70%); top:-15%; right:-10%; animation:floatCircle 10s ease-in-out infinite; }
.hc2 { width:400px; height:400px; background:radial-gradient(circle, rgba(45,212,191,0.1) 0%, transparent 70%); bottom:-8%; left:-5%; animation:floatCircle 12s ease-in-out infinite reverse; }
@keyframes floatCircle { 0%,100% { transform:translate(0,0) scale(1); } 33% { transform:translate(30px,-25px) scale(1.08); } 66% { transform:translate(-20px,15px) scale(0.94); } }
.hero-dots { position:absolute; inset:0; background-image:radial-gradient(rgba(6,182,212,0.18) 1px, transparent 1px); background-size:50px 50px; opacity:0.5; mask-image:radial-gradient(ellipse at center, black 35%, transparent 70%); -webkit-mask-image:radial-gradient(ellipse at center, black 35%, transparent 70%); }
.hero-content { position:relative; z-index:1; max-width:var(--max-width); margin:0 auto; padding:40px 32px; display:grid; grid-template-columns:1fr 1fr; gap:50px; align-items:center; }
.hero-text .badge { display:inline-flex; align-items:center; gap:6px; padding:8px 16px; border-radius:30px; background:var(--cyan-50); border:1px solid rgba(6,182,212,0.2); color:var(--cyan-700); font-size:0.85rem; font-weight:600; margin-bottom:22px; }
.badge-dot { width:8px; height:8px; border-radius:50%; background:var(--cyan-500); animation:pulseDot 2s ease-in-out infinite; }
@keyframes pulseDot { 0%,100% { box-shadow:0 0 0 0 rgba(6,182,212,0.5); } 50% { box-shadow:0 0 0 10px rgba(6,182,212,0); } }
.hero-text h1 { font-size:clamp(2.4rem, 4.5vw, 3.5rem); font-weight:800; letter-spacing:-1.5px; line-height:1.15; margin-bottom:18px; color:var(--text-primary); }
.gradient-text { background:linear-gradient(135deg, var(--cyan-500), var(--teal-500), var(--blue-500)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero-text p { font-size:1.1rem; color:var(--text-secondary); max-width:460px; margin-bottom:32px; line-height:1.7; }
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.btn { padding:14px 30px; border-radius:30px; font-weight:600; font-size:0.95rem; cursor:pointer; border:none; transition:all var(--transition); display:inline-flex; align-items:center; gap:8px; letter-spacing:0.3px; }
.btn-primary { background:linear-gradient(135deg, var(--cyan-500), var(--teal-500)); color:#fff; box-shadow:0 6px 24px rgba(6,182,212,0.35); }
.btn-primary:hover { box-shadow:0 10px 34px rgba(6,182,212,0.5); transform:translateY(-3px); }
.btn-outline { background:#fff; color:var(--cyan-700); border:2px solid var(--border-medium); box-shadow:var(--shadow-sm); }
.btn-outline:hover { border-color:var(--cyan-400); box-shadow:var(--shadow-cyan); background:var(--cyan-50); transform:translateY(-2px); }
.hero-card-visual { background:#fff; border-radius:var(--radius-xl); padding:28px 32px; box-shadow:var(--shadow-xl); border:1px solid var(--border-light); width:100%; max-width:420px; margin:0 auto; }
.card-label-text { font-size:0.8rem; color:var(--text-muted); font-weight:600; }
.card-value-large { font-size:1.6rem; font-weight:800; color:var(--cyan-700); }
.mini-chart { display:flex; align-items:flex-end; gap:10px; height:120px; margin:16px 0; }
.mini-bar { flex:1; border-radius:8px 8px 0 0; animation:barGrow 1s ease-out forwards; transform-origin:bottom; }
.mini-bar:nth-child(1) { height:60%; background:var(--cyan-300); animation-delay:0.1s; }
.mini-bar:nth-child(2) { height:85%; background:var(--cyan-400); animation-delay:0.2s; }
.mini-bar:nth-child(3) { height:70%; background:var(--teal-400); animation-delay:0.3s; }
.mini-bar:nth-child(4) { height:92%; background:var(--cyan-500); animation-delay:0.4s; }
.mini-bar:nth-child(5) { height:78%; background:var(--teal-500); animation-delay:0.5s; }
@keyframes barGrow { from { transform:scaleY(0); opacity:0; } to { transform:scaleY(1); opacity:1; } }
.card-sub-text { color:var(--text-muted); font-size:0.82rem; }

/* ---------- 统计数据行 ---------- */
.stats-row { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; max-width:var(--max-width); margin:-50px auto 0; padding:0 32px; position:relative; z-index:2; }
.stat-card { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius); padding:26px 22px; text-align:center; transition:all var(--transition); box-shadow:var(--shadow-sm); cursor:default; }
.stat-card:hover { border-color:rgba(6,182,212,0.3); box-shadow:var(--shadow-cyan); transform:translateY(-4px); }
.stat-number { font-size:2.2rem; font-weight:800; letter-spacing:-1px; background:linear-gradient(135deg, var(--cyan-500), var(--teal-500)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; margin-bottom:2px; }
.stat-label { color:var(--text-muted); font-size:0.88rem; font-weight:500; }

/* ---------- 通用区块 ---------- */
.section { padding:80px 32px; position:relative; }
.section-alt { background:var(--bg-secondary); }
.section-inner { max-width:var(--max-width); margin:0 auto; }
.section-label { display:inline-flex; align-items:center; gap:8px; padding:7px 16px; border-radius:20px; background:var(--cyan-50); border:1px solid rgba(6,182,212,0.18); color:var(--cyan-700); font-size:0.82rem; font-weight:600; letter-spacing:1px; text-transform:uppercase; margin-bottom:14px; }
.section-label::before { content:''; width:7px; height:7px; border-radius:50%; background:var(--cyan-500); animation:pulseDot 2s ease-in-out infinite; }
.section-title { font-size:clamp(1.7rem, 3.2vw, 2.3rem); font-weight:750; letter-spacing:-0.5px; margin-bottom:14px; line-height:1.2; }
.section-desc { color:var(--text-secondary); font-size:1rem; max-width:580px; margin-bottom:40px; line-height:1.7; }
.text-center { text-align:center; }
.text-center .section-desc { margin-left:auto; margin-right:auto; }

/* ---------- 内页通用 Hero ---------- */
.page-hero { padding:120px 32px 50px; position:relative; overflow:hidden; background:linear-gradient(180deg, #ffffff 0%, #f7fafc 35%, #ecfeff 100%); text-align:center; }
.page-hero-bg { position:absolute; inset:0; pointer-events:none; z-index:0; }
.page-hero-circle { position:absolute; border-radius:50%; opacity:0.35; }
.phc1 { width:450px; height:450px; background:radial-gradient(circle, rgba(6,182,212,0.1) 0%, transparent 70%); top:-16%; right:-5%; animation:floatCircle 10s infinite; }
.phc2 { width:280px; height:280px; background:radial-gradient(circle, rgba(45,212,191,0.07) 0%, transparent 70%); bottom:-8%; left:-4%; animation:floatCircle 12s infinite reverse; }
.page-hero-dots { position:absolute; inset:0; background-image:radial-gradient(rgba(6,182,212,0.12) 1px, transparent 1px); background-size:45px 45px; opacity:0.4; mask-image:radial-gradient(ellipse at center, black 25%, transparent 60%); -webkit-mask-image:radial-gradient(ellipse at center, black 25%, transparent 60%); }
.page-hero-content { position:relative; z-index:1; max-width:650px; margin:0 auto; }
.page-hero-content h1 { font-size:clamp(2rem, 3.5vw, 2.5rem); font-weight:800; }
.page-hero-desc { color:var(--text-secondary); font-size:1.05rem; margin-top:14px; }

/* ---------- 关于我们页面 ---------- */
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:50px; align-items:center; }
.about-visual { border-radius:var(--radius-xl); aspect-ratio:4/3; background:linear-gradient(135deg, #f0f9ff 0%, #ecfeff 50%, #f0fdfa 100%); border:1px solid var(--border-light); display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-md); }
.about-visual-inner { display:grid; grid-template-columns:repeat(4,1fr); grid-template-rows:repeat(3,1fr); gap:8px; padding:20px; width:85%; height:75%; }
.about-cell { border-radius:8px; animation:cellPulse 5s ease-in-out infinite; }
.about-cell:nth-child(1) { animation-delay:0s; background:rgba(6,182,212,0.15); }
.about-cell:nth-child(2) { animation-delay:0.3s; background:rgba(20,184,166,0.1); }
.about-cell:nth-child(3) { animation-delay:0.6s; background:rgba(6,182,212,0.2); }
.about-cell:nth-child(4) { animation-delay:0.9s; background:rgba(59,130,246,0.08); }
.about-cell:nth-child(5) { animation-delay:1.2s; background:rgba(6,182,212,0.25); }
.about-cell:nth-child(6) { animation-delay:1.5s; background:rgba(20,184,166,0.15); }
.about-cell:nth-child(7) { animation-delay:1.8s; background:rgba(6,182,212,0.1); }
.about-cell:nth-child(8) { animation-delay:2.1s; background:rgba(59,130,246,0.12); }
.about-cell:nth-child(9) { animation-delay:2.4s; background:rgba(6,182,212,0.18); }
.about-cell:nth-child(10) { animation-delay:2.7s; background:rgba(20,184,166,0.2); }
.about-cell:nth-child(11) { animation-delay:3s; background:rgba(6,182,212,0.08); }
.about-cell:nth-child(12) { animation-delay:3.3s; background:rgba(59,130,246,0.15); }
@keyframes cellPulse { 0%,100% { transform:scale(1); opacity:1; } 50% { transform:scale(1.08); opacity:0.7; } }
.about-text p { color:var(--text-secondary); margin-top:12px; }
.highlight-box { background:var(--cyan-50); border-left:4px solid var(--cyan-400); border-radius:0 var(--radius-sm) var(--radius-sm) 0; padding:16px 20px; margin-top:20px; font-style:italic; color:var(--cyan-800); font-weight:500; }
.mission-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:30px; }
.mission-card { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius-lg); padding:30px 24px; text-align:center; transition:all var(--transition-smooth); box-shadow:var(--shadow-sm); }
.mission-card:hover { border-color:rgba(6,182,212,0.25); box-shadow:var(--shadow-xl); transform:translateY(-4px); }
.mission-icon { font-size:2rem; margin-bottom:14px; }
.mission-card h3 { font-weight:700; margin-bottom:8px; }
.mission-card p { color:var(--text-secondary); font-size:0.9rem; }
.timeline { position:relative; padding-left:40px; margin-top:20px; }
.timeline::before { content:''; position:absolute; left:18px; top:0; bottom:0; width:3px; background:linear-gradient(180deg, var(--cyan-200), var(--teal-300), var(--cyan-200)); border-radius:2px; }
.timeline-item { position:relative; margin-bottom:28px; padding-left:24px; }
.timeline-dot { position:absolute; left:-28px; top:6px; width:16px; height:16px; border-radius:50%; background:#fff; border:3px solid var(--cyan-400); box-shadow:0 0 0 6px rgba(6,182,212,0.08); z-index:1; }
.timeline-year { font-size:0.8rem; font-weight:700; color:var(--cyan-600); text-transform:uppercase; margin-bottom:4px; }
.timeline-content { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius); padding:16px 18px; box-shadow:var(--shadow-sm); }
.timeline-content h4 { font-weight:700; font-size:1rem; margin-bottom:4px; }
.timeline-content p { font-size:0.88rem; color:var(--text-secondary); }
.team-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; margin-top:20px; }
.team-card { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius-lg); padding:24px 18px; text-align:center; transition:all var(--transition-smooth); box-shadow:var(--shadow-sm); }
.team-card:hover { border-color:rgba(6,182,212,0.25); box-shadow:var(--shadow-xl); transform:translateY(-4px); }
.team-avatar { width:80px; height:80px; border-radius:50%; margin:0 auto 14px; background:linear-gradient(135deg, var(--cyan-100), var(--teal-100)); display:flex; align-items:center; justify-content:center; font-size:2rem; }
.team-card h4 { font-weight:700; font-size:1rem; margin-bottom:2px; }
.role { font-size:0.8rem; color:var(--cyan-600); font-weight:600; margin-bottom:6px; }
.bio { font-size:0.82rem; color:var(--text-muted); line-height:1.5; }
.cert-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.cert-card { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius); padding:22px 18px; text-align:center; transition:all var(--transition-smooth); box-shadow:var(--shadow-sm); cursor:default; }
.cert-card:hover { border-color:rgba(6,182,212,0.3); box-shadow:var(--shadow-cyan); transform:translateY(-3px); }
.cert-icon { font-size:2.2rem; margin-bottom:10px; }
.cert-card h4 { font-weight:700; font-size:0.95rem; margin-bottom:4px; }
.cert-card p { font-size:0.8rem; color:var(--text-muted); }
.cta-box { background:linear-gradient(135deg, var(--cyan-50), #f0fdfa, var(--blue-50)); border-radius:var(--radius-xl); padding:50px 40px; text-align:center; border:1px solid rgba(6,182,212,0.15); margin-top:20px; }
.feature-list { list-style:none; margin-top:16px; }
.feature-list li { padding:10px 0; display:flex; align-items:center; gap:10px; color:var(--text-secondary); font-size:0.93rem; border-bottom:1px solid var(--border-light); }
.feature-list li:last-child { border-bottom:none; }
.feature-check { width:22px; height:22px; border-radius:50%; background:var(--cyan-100); color:var(--cyan-600); display:flex; align-items:center; justify-content:center; font-weight:700; font-size:0.75rem; flex-shrink:0; }

/* ---------- 联系我们 ---------- */
.contact-main-content { max-width:var(--max-width); margin:0 auto; padding:20px 32px 40px; }
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:start; }
.contact-info-cards { display:flex; flex-direction:column; gap:14px; }
.info-card-contact { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius-lg); padding:24px 22px; display:flex; align-items:flex-start; gap:16px; transition:all var(--transition-smooth); box-shadow:var(--shadow-sm); }
.info-card-contact:hover { border-color:rgba(6,182,212,0.25); box-shadow:var(--shadow-lg); transform:translateY(-2px); }
.info-card-icon-contact { width:48px; height:48px; border-radius:14px; background:var(--cyan-50); display:flex; align-items:center; justify-content:center; font-size:1.3rem; flex-shrink:0; }
.info-card-text-contact strong { display:block; font-weight:700; margin-bottom:4px; }
.info-card-text-contact span, .info-card-text-contact .info-sub { font-size:0.9rem; color:var(--text-secondary); display:block; }
.form-card-contact { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius-lg); padding:32px 28px; box-shadow:var(--shadow-md); position:sticky; top:100px; }
.form-subtitle { color:var(--text-muted); font-size:0.88rem; margin-bottom:24px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-bottom:16px; }
.form-group { margin-bottom:16px; }
.form-group label { display:block; margin-bottom:5px; font-size:0.84rem; font-weight:600; color:var(--text-secondary); }
.form-group input, .form-group textarea, .form-group select { width:100%; padding:13px 16px; border-radius:10px; border:1.5px solid var(--border-light); background:var(--bg-secondary); color:var(--text-primary); font-size:0.93rem; font-family:inherit; transition:all var(--transition); outline:none; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color:var(--cyan-400); box-shadow:0 0 0 3px rgba(6,182,212,0.06); background:#fff; }
.form-group textarea { resize:vertical; min-height:110px; }
.form-consent { display:flex; align-items:flex-start; gap:8px; margin:16px 0; font-size:0.82rem; color:var(--text-muted); }
.btn-block { width:100%; justify-content:center; }
.map-section { max-width:var(--max-width); margin:0 auto; padding:0 32px 40px; }
.map-wrapper { border-radius:var(--radius-lg); overflow:hidden; border:1px solid var(--border-light); box-shadow:var(--shadow-md); background:var(--bg-secondary); aspect-ratio:16/7; display:flex; align-items:center; justify-content:center; position:relative; }
.map-grid-overlay { position:absolute; inset:0; background-image:linear-gradient(rgba(6,182,212,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(6,182,212,0.04) 1px, transparent 1px); background-size:40px 40px; pointer-events:none; }
.map-placeholder { text-align:center; color:var(--text-muted); z-index:1; }
.address-line { font-weight:600; color:var(--text-primary); font-size:1rem; }
.social-section { text-align:center; padding:0 32px 60px; }
.social-links { display:flex; justify-content:center; gap:16px; flex-wrap:wrap; margin-top:18px; }
.social-link { display:flex; align-items:center; gap:8px; padding:12px 22px; border-radius:30px; background:#fff; border:1px solid var(--border-light); text-decoration:none; color:var(--text-secondary); font-weight:500; font-size:0.9rem; transition:all var(--transition); box-shadow:var(--shadow-sm); }
.social-link:hover { border-color:rgba(6,182,212,0.3); box-shadow:var(--shadow-cyan); color:var(--cyan-700); transform:translateY(-2px); }

/* ---------- 服务/新闻列表页 ---------- */
.main-content { max-width:var(--max-width); margin:0 auto; padding:20px 32px 80px; display:grid; grid-template-columns:280px 1fr; gap:36px; align-items:start; }
.sidebar { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius-lg); padding:8px; box-shadow:var(--shadow-md); position:sticky; top:100px; }
.sidebar-title { font-size:0.78rem; text-transform:uppercase; letter-spacing:1.5px; color:var(--text-muted); font-weight:700; padding:14px 16px 8px; }
.category-item { display:flex; align-items:center; gap:12px; padding:13px 16px; border-radius:12px; cursor:pointer; transition:all var(--transition); font-weight:500; color:var(--text-secondary); font-size:0.93rem; border:2px solid transparent; white-space:nowrap; user-select:none; }
.category-item:hover { background:var(--cyan-50); color:var(--cyan-700); border-color:rgba(6,182,212,0.15); }
.category-item.active { background:linear-gradient(135deg, var(--cyan-50), #f0fdfa); color:var(--cyan-700); font-weight:700; border-color:rgba(6,182,212,0.4); box-shadow:0 4px 18px rgba(6,182,212,0.12); }
.cat-icon { width:38px; height:38px; border-radius:10px; background:var(--bg-secondary); display:flex; align-items:center; justify-content:center; font-size:1.2rem; flex-shrink:0; }
.category-item.active .cat-icon { background:linear-gradient(135deg, var(--cyan-100), var(--teal-100)); }
.content-panel { display:none; animation:fadeSlide 0.4s ease; }
.content-panel.active { display:block; }
@keyframes fadeSlide { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }
.projects-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
.project-card { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius); padding:22px 20px; transition:all var(--transition-smooth); cursor:pointer; box-shadow:var(--shadow-sm); display:block; color:inherit; }
.project-card:hover { border-color:rgba(6,182,212,0.3); box-shadow:var(--shadow-xl); transform:translateY(-3px); }
.proj-top { display:flex; align-items:flex-start; justify-content:space-between; gap:10px; }
.proj-name { font-weight:700; font-size:1rem; color:var(--text-primary); }
.proj-badge { flex-shrink:0; padding:4px 10px; border-radius:12px; font-size:0.7rem; font-weight:700; text-transform:uppercase; }
.badge-hot { background:#fef3c7; color:#b45309; } .badge-precision { background:#d1fae5; color:#065f46; } .badge-recommend { background:#ede9fe; color:#5b21b6; } .badge-advanced { background:#fce7f3; color:#9d174d; } .badge-new { background:#dbeafe; color:#1e40af; }
.proj-desc { color:var(--text-secondary); font-size:0.85rem; margin-top:8px; }
.news-list { display:grid; grid-template-columns:1fr; gap:20px; }
.news-card { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius); padding:24px; display:flex; gap:20px; transition:all var(--transition-smooth); cursor:pointer; box-shadow:var(--shadow-sm); color:inherit; }
.news-card:hover { border-color:rgba(6,182,212,0.3); box-shadow:var(--shadow-lg); transform:translateY(-2px); }
.news-img { width:120px; height:90px; border-radius:var(--radius-sm); background:linear-gradient(135deg, var(--cyan-50), var(--blue-50)); display:flex; align-items:center; justify-content:center; font-size:2rem; flex-shrink:0; }
.news-content { flex:1; }
.news-title { font-size:1.15rem; font-weight:700; margin-bottom:6px; color:var(--text-primary); }
.news-meta { font-size:0.8rem; color:var(--text-muted); margin-bottom:8px; display:flex; gap:15px; flex-wrap:wrap; }
.news-summary { color:var(--text-secondary); font-size:0.9rem; line-height:1.6; }

/* ---------- 详情页通用 ---------- */
.project-detail-wrapper { max-width:var(--max-width); margin:0 auto; padding:20px 32px 80px; }
.project-detail-content, .news-detail-content { background:#fff; border:1px solid var(--border-light); border-radius:var(--radius-lg); padding:32px 30px; box-shadow:var(--shadow-md); }
.detail-section { margin-bottom:30px; }
.detail-section h2 { font-size:1.15rem; font-weight:700; margin-bottom:10px; }
.detail-section p, .detail-section li { color:var(--text-secondary); font-size:0.92rem; line-height:1.7; }
.gene-tags { display:flex; flex-wrap:wrap; gap:8px; }
.gene-tags span { background:var(--cyan-50); color:var(--cyan-700); padding:6px 14px; border-radius:20px; font-size:0.82rem; font-weight:500; border:1px solid rgba(6,182,212,0.15); }
.info-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.info-card { background:var(--bg-secondary); border-radius:var(--radius-sm); padding:16px 18px; }
.info-card-label { font-size:0.8rem; color:var(--text-muted); font-weight:600; text-transform:uppercase; letter-spacing:0.5px; margin-bottom:4px; }
.info-card-value { font-weight:600; color:var(--text-primary); }
.faq-list { margin-top:10px; }
.faq-item { border-bottom:1px solid var(--border-light); padding:14px 0; }
.faq-question { font-weight:600; color:var(--text-primary); cursor:pointer; }
.faq-answer { margin-top:8px; color:var(--text-secondary); font-size:0.9rem; display:none; }
.faq-item.open .faq-answer { display:block; }

/* ---------- 页脚 ---------- */
.footer { background:#fff; border-top:1px solid var(--border-light); padding:50px 32px 28px; }
.footer-inner { max-width:var(--max-width); margin:0 auto; display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:36px; }
.footer-col h4 { font-weight:700; margin-bottom:14px; font-size:0.95rem; }
.footer-col a, .footer-col p { display:block; color:var(--text-muted); font-size:0.87rem; margin-bottom:7px; transition:color var(--transition); line-height:1.6; }
.footer-col a:hover { color:var(--cyan-600); }
.footer-bottom { max-width:var(--max-width); margin:28px auto 0; padding-top:20px; border-top:1px solid var(--border-light); text-align:center; color:var(--text-light); font-size:0.82rem; }

/* Toast */
.toast { position:fixed; bottom:30px; left:50%; transform:translateX(-50%) translateY(100px); background:var(--cyan-600); color:#fff; padding:14px 28px; border-radius:30px; font-weight:600; z-index:3000; opacity:0; transition:all 0.4s ease; box-shadow:0 8px 30px rgba(6,182,212,0.4); pointer-events:none; font-size:0.9rem; }
.toast.show { opacity:1; transform:translateX(-50%) translateY(0); }
.toast.error { background:#e53e3e; box-shadow:0 8px 30px rgba(229,62,62,0.4); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2,1fr); }
    .team-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 900px) {
    .hero-content { grid-template-columns:1fr; text-align:center; gap:36px; padding:30px 20px; }
    .hero-text p { max-width:100%; margin:0 auto 32px; }
    .hero-buttons { justify-content:center; }
    .hero-card-visual { max-width:100%; }
    .nav-links { position:fixed; top:0; right:-100%; width:280px; height:100vh; background:rgba(255,255,255,0.98); backdrop-filter:blur(20px); flex-direction:column; padding:90px 28px 36px; gap:2px; transition:right var(--transition-smooth); border-left:1px solid var(--border-light); box-shadow:-8px 0 40px rgba(0,0,0,0.08); }
    .nav-links.open { right:0; }
    .nav-links a { display:block; padding:13px 18px; font-size:1rem; border-radius:10px; }
    .nav-cta { margin-left:0; text-align:center; }
    .hamburger { display:flex; }
    .about-grid, .contact-grid { grid-template-columns:1fr; gap:30px; }
    .main-content { grid-template-columns:1fr; gap:24px; padding:16px 20px 60px; }
    .sidebar { position:static; display:flex; flex-wrap:wrap; gap:6px; overflow-x:auto; padding:12px; }
    .sidebar-title { display:none; }
    .category-item { flex-shrink:0; border-radius:25px; padding:10px 16px; font-size:0.85rem; }
    .projects-grid { grid-template-columns:1fr; }
    .form-card-contact { position:static; }
}
@media (max-width: 768px) {
    .stats-row { grid-template-columns: repeat(2,1fr); gap:14px; margin-top:-30px; }
    .footer-inner { grid-template-columns:1fr 1fr; gap:28px; }
    .mission-grid, .cert-grid { grid-template-columns:1fr; }
}
@media (max-width: 600px) {
    .section { padding:50px 16px; }
    .hero { padding-top:60px; }
    .hero-content { padding:20px 16px; }
    .stats-row { padding:0 16px; margin-top:-20px; }
    .btn { padding:12px 22px; font-size:0.88rem; }
    .services-grid { grid-template-columns:1fr; }
    .info-grid { grid-template-columns:1fr; }
}

/* ========== 首页检测服务板块修复 ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 强制四列 */
    gap: 24px;
}

.service-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 32px 26px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    text-decoration: none; /* 确保是链接样式 */
    color: inherit;
}

.service-card:hover {
    border-color: rgba(6, 182, 212, 0.25);
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    .service-card {
        padding: 24px 20px;
    }
}

.decorative-pattern {
    width: 100%;
    min-height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.dna-container {
    position: relative;
    width: 200px;
    height: 200px;
    animation: floatPattern 6s ease-in-out infinite;
}
.dna-strand {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 4px solid transparent;
    border-radius: 50%;
    border-top-color: var(--cyan-400);
    border-bottom-color: var(--teal-400);
    animation: rotateStrand 10s linear infinite;
}
.dna-strand:nth-child(2) {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    animation-direction: reverse;
    animation-duration: 8s;
}
.dna-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--cyan-500);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 20px var(--cyan-400);
}
/* 动画 */
@keyframes floatPattern {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}
@keyframes rotateStrand {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}