html{scroll-behavior:smooth}
:root{--bg:#f8f9fc;--card:#fff;--accent:#0057b8;--accent-d:#003d8f;--glow:rgba(0,87,184,.08);--text:#1a1a2e;--text2:#6b7280;--muted:#9ca3af;--border:rgba(0,87,184,.12);--border-h:rgba(0,87,184,.35);--shadow:0 4px 20px rgba(0,0,0,.07)}
*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{color:inherit;text-decoration:none}
.nav{position:fixed;top:0;width:100%;z-index:1000;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 48px;background:rgba(255,255,255,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--accent);flex-shrink:0}
.logo-en{font-family:'Inter',sans-serif;font-size:10px;color:var(--muted);font-weight:400;display:block}
.nav-links{display:flex;gap:4px;list-style:none;align-items:center}
.nav-links a{color:var(--text2);font-size:13px;padding:6px 14px;border-radius:8px;transition:all .2s}
.nav-links a:hover,.nav-links a.active{color:var(--accent);background:var(--glow)}
.lang-btn{padding:5px 14px;border:1px solid var(--border);background:#fff;border-radius:6px;font-size:11px;color:var(--text2);cursor:pointer;transition:all .2s;font-family:'Inter',sans-serif;font-weight:500}
.lang-btn.active,.lang-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{width:22px;height:2px;background:var(--text);border-radius:2px;display:block}
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;padding:80px 48px 60px;background:linear-gradient(160deg,#f0f4ff 0%,#f8f9fc 50%,#e8f0fe 100%)}
.hero-pattern{position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(0,87,184,.07) 1px,transparent 0);background-size:32px 32px}
.hero-content{position:relative;z-index:2;text-align:center;max-width:900px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);padding:5px 18px;border-radius:100px;font-size:11px;color:var(--muted);margin-bottom:28px;font-family:'Inter',sans-serif;letter-spacing:1px;text-transform:uppercase}
.badge-dot{width:6px;height:6px;background:#22c55e;border-radius:50%;animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.hero h1{font-size:clamp(28px,4.5vw,60px);font-weight:800;line-height:1.15;margin-bottom:8px}
.hero-en{font-family:'Inter',sans-serif;font-size:clamp(11px,1.4vw,15px);font-weight:500;color:var(--accent);letter-spacing:3px;text-transform:uppercase;margin-bottom:24px}
.hero-desc{font-size:16px;color:var(--text2);margin-bottom:40px;font-weight:400;max-width:580px;margin-left:auto;margin-right:auto}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-p{background:var(--accent);color:#fff;padding:14px 32px;border-radius:10px;font-weight:600;font-size:14px;transition:all .3s;border:none;cursor:pointer;display:inline-block;text-decoration:none}
.btn-p:hover{background:var(--accent-d);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,87,184,.3)}
.btn-s{background:#fff;color:var(--accent);padding:14px 32px;border-radius:10px;font-weight:600;font-size:14px;border:1.5px solid var(--border-h);transition:all .3s;display:inline-block;text-decoration:none}
.btn-s:hover{border-color:var(--accent);background:var(--glow)}
.stats-wrap{padding:0 48px;max-width:960px;margin:-20px auto 0}
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px 16px;text-align:center;box-shadow:var(--shadow)}
.stat-n{font-family:'Inter',sans-serif;font-size:36px;font-weight:800;color:var(--accent)}
.stat-l{font-size:12px;color:var(--muted);margin-top:4px}
section{padding:80px 48px}
.container{max-width:1160px;margin:0 auto}
.sec-tag{font-family:'Inter',sans-serif;font-size:10px;font-weight:600;letter-spacing:3px;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.sec-title{font-size:clamp(22px,2.8vw,34px);font-weight:800;margin-bottom:12px}
.sec-desc{font-size:14px;color:var(--text2);max-width:560px;font-weight:400;line-height:1.7}
.sec-hdr{margin-bottom:48px}
.text-center{text-align:center}
.text-center .sec-desc{margin:0 auto}
#products{background:#fff}
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.prod-card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:all .3s;display:flex;flex-direction:column}
.prod-card:hover{border-color:var(--border-h);transform:translateY(-4px);box-shadow:var(--shadow)}
.prod-img{width:100%;height:170px;display:flex;align-items:center;justify-content:center;font-size:52px;background:linear-gradient(135deg,#f0f4ff,#e8f0fe)}
.prod-body{padding:22px;flex:1;display:flex;flex-direction:column}
.prod-tag{font-family:'Inter',sans-serif;font-size:9px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--accent);margin-bottom:8px}
.prod-name{font-size:16px;font-weight:700;margin-bottom:3px}
.prod-name-en{font-family:'Inter',sans-serif;font-size:11px;color:var(--muted);margin-bottom:10px}
.prod-desc{font-size:13px;color:var(--text2);line-height:1.7;flex:1}
.prod-specs{margin-top:12px;display:flex;flex-wrap:wrap;gap:5px}
.spec-tag{font-family:'Inter',sans-serif;font-size:10px;background:#f0f4ff;color:var(--accent);padding:3px 10px;border-radius:100px;border:1px solid var(--border)}
.prod-link{display:inline-block;margin-top:14px;font-family:'Inter',sans-serif;font-size:12px;font-weight:600;color:var(--accent);border:1px solid var(--border);padding:6px 14px;border-radius:8px;transition:all .2s;text-align:center;text-decoration:none}
.prod-link:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
#about{background:#f0f4ff}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-text p{font-size:14px;color:var(--text2);line-height:1.9;margin-bottom:14px}
.fact-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.fact-item{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}
.fact-n{font-family:'Inter',sans-serif;font-size:26px;font-weight:800;color:var(--accent)}
.fact-l{font-size:12px;color:var(--muted);margin-top:4px}
.cert-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.cert-badge{background:#fff;border:1px solid var(--border);border-radius:8px;padding:8px 14px;font-size:12px;color:var(--text2);display:flex;align-items:center;gap:6px}
#contact{background:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-list{display:flex;flex-direction:column;gap:16px}
.contact-item{display:flex;gap:14px;align-items:flex-start;padding:18px;background:#f8f9fc;border:1px solid var(--border);border-radius:12px}
.contact-icon{width:42px;height:42px;background:#fff;border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;color:var(--accent)}
.contact-label{font-size:11px;color:var(--muted);margin-bottom:3px;font-family:'Inter',sans-serif}
.contact-val{font-size:14px;font-weight:600}
.contact-form{background:#f8f9fc;border:1px solid var(--border);border-radius:16px;padding:30px}
.form-g{margin-bottom:14px}
.form-g label{display:block;font-size:12px;color:var(--text2);margin-bottom:6px}
.form-g input,.form-g textarea{width:100%;background:#fff;border:1px solid var(--border);border-radius:10px;padding:12px 14px;font-size:14px;color:var(--text);outline:none;transition:border-color .2s;resize:vertical;font-family:'Noto Sans SC',sans-serif}
.form-g input:focus,.form-g textarea:focus{border-color:var(--accent)}
.form-g textarea{height:96px}
.form-submit{width:100%;background:var(--accent);color:#fff;padding:14px;border-radius:10px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all .3s;font-family:'Noto Sans SC',sans-serif}
.form-submit:hover{background:var(--accent-d)}
footer{background:var(--text);color:rgba(255,255,255,.6);padding:36px 48px}
.footer-inner{max-width:1160px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer-brand{font-size:16px;font-weight:700;color:#fff}
.footer-brand-en{font-family:'Inter',sans-serif;font-size:11px;color:rgba(255,255,255,.4);font-weight:400;display:block}
.footer-links{display:flex;gap:24px}
.footer-links a{font-size:12px;color:rgba(255,255,255,.5);transition:color .2s;text-decoration:none}
.footer-links a:hover{color:#fff}
.footer-copy{font-size:11px;font-family:'Inter',sans-serif}
@media(max-width:768px){
.nav{padding:0 20px}.nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;border-bottom:1px solid var(--border);box-shadow:0 4px 12px rgba(0,0,0,.08)}.nav-links.show{display:flex}.hamburger{display:flex}
.hero{padding:80px 20px 40px}.stats-bar{grid-template-columns:repeat(2,1fr)}.stats-wrap{padding:0 20px}section{padding:60px 20px}
.about-grid,.contact-grid{grid-template-columns:1fr}.prod-grid{grid-template-columns:1fr 1fr}.footer-inner{flex-direction:column;text-align:center;justify-content:center}}
@media(max-width:480px){.prod-grid{grid-template-columns:1fr}}

/* ===== Selection Table Section ===== */
.selection-table-section {
  background: #fff;
  border-top: 3px solid #38bdf8;
  padding: 48px 24px 64px;
}

.selection-table-section .section-header {
  text-align: center;
  margin-bottom: 40px;
}

.selection-table-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1e3a5f;
  margin: 0 0 8px;
}

.selection-table-section .section-subtitle {
  font-size: 1rem;
  color: #38bdf8;
  font-weight: 600;
  margin: 0 0 12px;
}

.selection-table-section .section-note {
  font-size: 0.875rem;
  color: #64748b;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.7;
}

.table-pages {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.table-page {
  margin: 0;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
}

.table-page img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px 12px 0 0;
}

.table-page figcaption {
  background: #1e3a5f;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 16px;
  letter-spacing: 0.02em;
}