:root{
  --ql-blue:#00a8b5;
  --ql-blue-deep:#007f8a;
  --ql-green:#72c84a;
  --ql-mint:#e9fbf8;
  --ql-ice:#f6fffd;
  --ql-dark:#17393c;
  --ql-gray:#647579;
  --ql-line:#d9f1ee;
  --ql-gold:#d8a83c;
  --ql-orange:#ff8a3d;
  --shadow:0 14px 36px rgba(0,127,138,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ql-dark);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.76;background:linear-gradient(180deg,#f6fffd 0,#fff 30%,#f7fffd 100%);font-size:16px}
a{color:var(--ql-blue-deep);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1180px;margin:0 auto;padding:0 22px}.topbar{background:#fff;border-bottom:1px solid var(--ql-line);position:sticky;top:0;z-index:99;box-shadow:0 4px 18px rgba(0,0,0,.04)}.nav{display:flex;align-items:center;justify-content:space-between;height:82px;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em;color:var(--ql-blue-deep)}.brand-logo{width:62px;height:62px;object-fit:contain;display:block;flex:0 0 auto}.logo-text{display:flex;flex-direction:column;line-height:1.25}.logo-text small{font-size:12px;color:var(--ql-gray);font-weight:500;letter-spacing:0}.menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:14px}.menu a{color:#25565a}.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 86% 12%,rgba(114,200,74,.22),transparent 26%),linear-gradient(135deg,#e7fbf8 0%,#fff 47%,#f0fff3 100%);border-bottom:1px solid var(--ql-line)}.hero:before{content:"";position:absolute;right:-80px;top:20px;width:380px;height:380px;border-radius:50%;background:rgba(0,168,181,.08)}.hero:after{content:"";position:absolute;left:-120px;bottom:-160px;width:360px;height:360px;border-radius:50%;background:rgba(114,200,74,.10)}.hero-inner{position:relative;z-index:1;padding:66px 0 58px;display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;background:#fff;border:1px solid var(--ql-line);border-radius:99px;color:var(--ql-blue-deep);font-size:14px;font-weight:700}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--ql-green)}h1{font-size:42px;line-height:1.18;margin:18px 0 18px;color:#0a575f;letter-spacing:-.02em}.lead{font-size:18px;color:#42666a;max-width:760px}.hero-card{background:#fff;border:1px solid var(--ql-line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.hero-card h2{margin-top:0;font-size:22px}.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.tag{display:inline-flex;align-items:center;padding:6px 12px;background:var(--ql-mint);border:1px solid #c9efea;border-radius:99px;color:#087f88;font-size:13px;font-weight:700}.page-meta{margin-top:18px;color:var(--ql-gray);font-size:14px}.toc{background:#fff;border:1px solid var(--ql-line);box-shadow:var(--shadow);border-radius:22px;padding:18px 20px;margin:28px auto}.toc strong{display:block;color:#0a575f;margin-bottom:8px}.toc a{display:inline-block;margin:4px 14px 4px 0;color:#38676b;font-size:14px}.section{padding:50px 0}.section h2{font-size:30px;line-height:1.3;margin:0 0 18px;color:#0a575f}.section h3{font-size:22px;line-height:1.4;margin:26px 0 12px;color:#125f66}.section p{margin:0 0 14px}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--ql-line);border-radius:22px;padding:24px;box-shadow:0 10px 28px rgba(0,127,138,.07)}.card h3{margin-top:0}.card .num{width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--ql-blue),var(--ql-green));color:#fff;font-weight:800;margin-bottom:10px}.highlight{background:linear-gradient(135deg,#f1fffb,#fff);border-left:5px solid var(--ql-blue);padding:18px 20px;border-radius:16px;margin:18px 0;color:#315d61}.pill-list{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.pill{background:#fff;border:1px solid var(--ql-line);border-radius:999px;padding:7px 13px;color:#315d61;font-size:14px}.product-card{display:flex;gap:18px;align-items:flex-start}.product-icon{flex:0 0 54px;width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,#dffbf4,#eafde2);display:flex;align-items:center;justify-content:center;font-size:28px}.table-wrap{overflow-x:auto;border:1px solid var(--ql-line);border-radius:18px;background:#fff;margin:18px 0}table{width:100%;border-collapse:collapse}th,td{padding:14px 16px;border-bottom:1px solid var(--ql-line);text-align:left;vertical-align:top}th{background:#eefbf8;color:#0a575f;font-weight:800}tr:last-child td{border-bottom:none}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--ql-line);border-radius:18px;overflow:hidden;box-shadow:0 8px 22px rgba(0,127,138,.05)}.faq-item h3{padding:18px 20px 6px;margin:0;font-size:18px;font-weight:800;color:#0a575f;line-height:1.5}.faq-item .answer{padding:0 20px 18px;color:#42666a}.cta{background:linear-gradient(135deg,var(--ql-blue-deep),var(--ql-blue));color:#fff;border-radius:28px;padding:34px;display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center;box-shadow:var(--shadow)}.cta h2{color:#fff;margin:0 0 8px}.cta p{margin:0;color:rgba(255,255,255,.88)}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 20px;background:#fff;color:var(--ql-blue-deep);font-weight:800;border:0}.btn-secondary{background:#effaf8;border:1px solid var(--ql-line);color:var(--ql-blue-deep)}.note{font-size:13px;color:#74878a;background:#fbfffe;border:1px dashed #ccefeb;border-radius:14px;padding:14px 16px}.footer{background:#0e4248;color:rgba(255,255,255,.82);padding:34px 0;margin-top:40px}.footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:20px}.breadcrumb{font-size:14px;color:#6b7e81;margin:24px 0}.breadcrumb a{color:#6b7e81}.source-box{border:1px solid var(--ql-line);border-radius:18px;background:#fff;padding:18px 20px;color:#536f73}.source-box strong{color:#0a575f}.cert-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:20px 0}.cert{background:#fff;border:1px solid var(--ql-line);border-radius:18px;padding:16px}.cert img{width:100%;height:160px;object-fit:cover;border-radius:12px;border:1px solid #eee}.cert p{font-size:13px;color:#647579;margin:8px 0 0}.hero-logo-large{width:100%;min-height:260px;border-radius:24px;background:linear-gradient(135deg,#fff,#e7fbf8);border:1px solid var(--ql-line);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.hero-logo-large:before{content:"";position:absolute;width:210px;height:210px;border-radius:50%;border:28px solid rgba(0,168,181,.1)}.hero-logo-large span{position:relative;z-index:1;font-size:72px;font-weight:900;color:var(--ql-blue);letter-spacing:.08em}.hero-logo-img{position:relative;z-index:1;width:230px;max-width:78%;height:auto;object-fit:contain}.two-col{columns:2;column-gap:34px}.scene-link{display:block;padding:14px 16px;background:#fff;border:1px solid var(--ql-line);border-radius:16px;margin-bottom:10px}.schema-note{display:none}@media(max-width:900px){.hero-inner{grid-template-columns:1fr}.menu{display:none}h1{font-size:34px}.grid-2,.grid-3,.cert-grid{grid-template-columns:1fr}.cta{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.two-col{columns:1}.hero-logo-large{min-height:180px}.hero-logo-large span{font-size:52px}.hero-logo-img{width:170px}}

/* Product image enhancement */
.hero-product-wall{position:relative;min-height:320px;border-radius:28px;background:linear-gradient(135deg,#ffffff 0%,#effff7 55%,#e7fbf8 100%);border:1px solid var(--ql-line);box-shadow:var(--shadow);overflow:hidden;display:flex;align-items:center;justify-content:center;padding:26px}.hero-product-wall:before{content:"";position:absolute;inset:auto -60px -80px auto;width:220px;height:220px;border-radius:50%;background:rgba(114,200,74,.16)}.hero-product-wall:after{content:"";position:absolute;left:-60px;top:-80px;width:220px;height:220px;border-radius:50%;background:rgba(0,168,181,.12)}.product-lineup{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:center;gap:8px;width:100%}.product-lineup img{max-height:235px;max-width:30%;object-fit:contain;filter:drop-shadow(0 18px 22px rgba(26,80,70,.18));transition:transform .25s ease}.product-lineup img:nth-child(1){transform:translateY(12px) rotate(-2deg)}.product-lineup img:nth-child(2){max-height:270px;transform:translateY(-2px)}.product-lineup img:nth-child(3){transform:translateY(14px) rotate(2deg)}.product-lineup img:hover{transform:translateY(-6px) scale(1.03)}.hero-banner{border-radius:28px;overflow:hidden;border:1px solid var(--ql-line);box-shadow:var(--shadow);background:#fff}.hero-banner img{display:block;width:100%;height:auto;object-fit:cover}.hero-product-focus{position:relative;border-radius:28px;background:linear-gradient(160deg,#fff 0%,#f3fffa 55%,#ecf8df 100%);border:1px solid var(--ql-line);box-shadow:var(--shadow);padding:26px;display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:18px;overflow:hidden}.hero-product-focus:before{content:"天然电解质";position:absolute;right:18px;top:18px;color:rgba(0,127,138,.09);font-size:38px;font-weight:900;letter-spacing:.04em;white-space:nowrap}.hero-product-focus img{position:relative;z-index:1;max-height:300px;max-width:100%;object-fit:contain;filter:drop-shadow(0 18px 22px rgba(26,80,70,.18));justify-self:center}.hero-product-copy{position:relative;z-index:1}.hero-product-copy strong{display:block;color:#0a575f;font-size:24px;line-height:1.35}.hero-product-copy span{display:inline-flex;margin-top:12px;padding:7px 12px;border-radius:99px;background:#e9fbf8;border:1px solid #c9efea;color:#087f88;font-size:13px;font-weight:800}.product-card.visual{align-items:center;min-height:210px}.product-thumb{flex:0 0 132px;height:164px;margin:0;border-radius:20px;background:linear-gradient(180deg,#fff,#f4fffb);border:1px solid var(--ql-line);display:flex;align-items:center;justify-content:center;padding:10px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.75)}.product-thumb img{max-height:145px;max-width:100%;object-fit:contain;filter:drop-shadow(0 12px 14px rgba(26,80,70,.15))}.product-gallery{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin:24px 0}.gallery-card{background:#fff;border:1px solid var(--ql-line);border-radius:22px;padding:14px 12px 12px;text-align:center;box-shadow:0 10px 28px rgba(0,127,138,.06)}.gallery-card img{height:170px;max-width:100%;object-fit:contain;display:block;margin:0 auto 10px;filter:drop-shadow(0 14px 16px rgba(26,80,70,.14))}.gallery-card strong{display:block;color:#0a575f;font-size:15px;line-height:1.35}.gallery-card small{display:block;color:#647579;font-size:12px;margin-top:3px}.image-text{display:grid;grid-template-columns:.95fr 1.05fr;gap:26px;align-items:center}.image-panel{background:linear-gradient(180deg,#fff,#f4fffb);border:1px solid var(--ql-line);border-radius:26px;padding:22px;box-shadow:var(--shadow);text-align:center}.image-panel img{max-height:360px;max-width:100%;object-fit:contain;filter:drop-shadow(0 18px 20px rgba(26,80,70,.18))}.scene-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:20px 0}.scene-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--ql-line);border-radius:22px;padding:18px;min-height:190px;box-shadow:0 10px 28px rgba(0,127,138,.06)}.scene-card img{position:absolute;right:10px;bottom:4px;height:150px;max-width:44%;object-fit:contain;filter:drop-shadow(0 14px 18px rgba(26,80,70,.16))}.scene-card h3{margin:0 0 8px;max-width:65%}.scene-card p{max-width:62%;font-size:14px;color:#42666a}.red-banner-section{background:#e60012;padding:0;margin:32px 0;border-radius:28px;overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(230,0,18,.18)}.red-banner-section img{display:block;width:100%;height:auto}.visual-note{font-size:13px;color:#647579;text-align:center;margin-top:8px}.faq-hero-mini{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;width:100%}.faq-hero-mini img{height:150px;max-width:100%;object-fit:contain;filter:drop-shadow(0 12px 14px rgba(26,80,70,.14));background:rgba(255,255,255,.72);border:1px solid rgba(217,241,238,.9);border-radius:18px;padding:8px}@media(max-width:900px){.product-lineup img{max-height:175px}.product-lineup img:nth-child(2){max-height:205px}.hero-product-focus,.image-text{grid-template-columns:1fr}.product-card.visual{display:block}.product-thumb{margin:0 auto 14px}.product-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}.scene-cards{grid-template-columns:1fr}.faq-hero-mini{grid-template-columns:1fr 1fr}.hero-product-copy strong{font-size:21px}.hero-product-wall{min-height:230px}.hero-product-focus img{max-height:240px}}