/* === XINGLUN — Plastic Household Products === */
:root {
  --green:#1a3c2a; --green-light:#2d5a3d; --accent:#4a8c5c;
  --cream:#f7f5f0; --white:#fff; --ink:#1a1a1a;
  --muted:#6b7280; --line:#e5e0d8; --gold:#c4a962;
  --radius:6px; --shadow:0 2px 20px rgba(0,0,0,.06);
  --font:system-ui,-apple-system,'Segoe UI',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font:400 15px/1.6 var(--font);color:var(--ink);background:var(--white);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-weight:700;line-height:1.15}
section{padding:90px 0}

/* ===== HEADER ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 5vw;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-size:13px}
.brand-mark{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--green);color:#fff;font-weight:800;font-size:15px;letter-spacing:-.5px;border-radius:4px}
.brand strong{display:block;font-size:16px;font-weight:700;letter-spacing:.5px}
.brand small{display:block;font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.12em}
nav{display:flex;align-items:center;gap:36px}
nav a{font-size:13px;font-weight:500;color:var(--ink);transition:color .2s;position:relative}
nav a:hover{color:var(--green)}
nav a.nav-cta{background:var(--green);color:#fff;padding:10px 22px;border-radius:var(--radius);font-weight:600;transition:background .2s}
nav a.nav-cta:hover{background:var(--green-light);color:#fff}

/* ===== HERO ===== */
.hero{padding:140px 5vw 90px;display:grid;grid-template-columns:42% 58%;gap:50px;align-items:center;background:var(--cream)}
.hero-copy{max-width:540px}
.eyebrow{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.16em;color:var(--green);margin-bottom:18px}
.hero-copy h1{font-size:clamp(38px,5vw,60px);font-weight:800;line-height:1.08;letter-spacing:-.03em;margin-bottom:24px}
.hero-copy h1 em{font-style:normal;color:var(--green)}
.hero-lead{font-size:16px;line-height:1.7;color:var(--muted);margin-bottom:32px;max-width:480px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:var(--radius);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;border:none}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-light);transform:translateY(-1px)}
.btn-outline{border:2px solid var(--green);color:var(--green);background:transparent}
.btn-outline:hover{background:var(--green);color:#fff}
.hero-grid{display:grid;grid-template-columns:1fr 1fr 1fr;grid-template-rows:1fr 1fr;gap:8px;aspect-ratio:4/3}
.hero-grid-item{display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:var(--radius);background:#e8e4db}
.hero-grid-item img{max-width:90%;max-height:90%;width:auto;height:auto;object-fit:contain;object-position:center center}
.hero-grid-item:first-child{grid-row:span 2;grid-column:span 2}
.hero-trust{margin-top:40px;display:flex;gap:24px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--line)}
.hero-trust span{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.hero-trust b{color:var(--ink);font-weight:700}

/* ===== SECTION HEADS ===== */
.section-head{text-align:center;margin-bottom:20px}
.section-head .label{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:var(--green);margin-bottom:12px}
.section-head h2{font-size:clamp(32px,4vw,48px);font-weight:800;letter-spacing:-.02em}
.section-sub{text-align:center;max-width:680px;margin:0 auto 56px;font-size:15px;color:var(--muted);line-height:1.7}
.container{max-width:1320px;margin:0 auto;padding:0 5vw}

/* ===== CATEGORY CARDS ===== */
.categories{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cat-card{position:relative;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);overflow:hidden;background:var(--cream);transition:transform .3s,box-shadow .3s;aspect-ratio:4/3}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.cat-card img{max-width:90%;max-height:90%;width:auto;height:auto;object-fit:contain;object-position:center center}
.cat-card-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.55) 0%,transparent 55%);display:flex;align-items:flex-end;padding:28px}
.cat-card-overlay h3{color:#fff;font-size:22px;font-weight:700}
.cat-card-overlay small{display:block;color:rgba(255,255,255,.7);font-size:12px;margin-bottom:6px;text-transform:uppercase;letter-spacing:.1em}

/* ===== PRODUCT GRID ===== */
.products-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.product-card{background:var(--white);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:box-shadow .3s,transform .3s}
.product-card a{display:block;color:inherit}
.product-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.product-card-img{display:flex;align-items:center;justify-content:center;aspect-ratio:3/2;overflow:hidden;background:var(--cream)}
.product-card-img img{max-width:90%;max-height:90%;width:auto;height:auto;object-fit:contain;object-position:center center !important;transition:transform .5s}
.product-card:hover .product-card-img img{transform:scale(1.03)}
.product-card-info{padding:16px 18px 18px}
.product-card-info small{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em}
.product-card-info h3{font-size:14px;margin:4px 0 6px;font-weight:600}
.product-card-info .tag{display:inline-block;font-size:10px;padding:2px 8px;background:var(--cream);border-radius:20px;color:var(--green);font-weight:600;margin-right:6px}
.product-card-info .learn-more{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:600;color:var(--green);margin-top:8px;transition:gap .2s}
.product-card-info .learn-more:hover{gap:8px}

/* ===== ABOUT ===== */
.about-section{background:var(--green);color:#fff;padding:100px 0}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-text .label{color:#9fc4a8}
.about-text h2{font-size:clamp(32px,4vw,48px);font-weight:800;margin-bottom:24px}
.about-text p{font-size:15px;line-height:1.8;color:#c5d9cb;margin-bottom:20px;max-width:480px}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:36px}
.stat-item{text-align:center;padding:24px 12px;background:rgba(255,255,255,.08);border-radius:var(--radius)}
.stat-item strong{display:block;font-size:32px;font-weight:800;line-height:1.1}
.stat-item span{display:block;font-size:11px;color:#9fc4a8;margin-top:6px;text-transform:uppercase;letter-spacing:.06em}
.about-media{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center}
.about-media img{max-width:90%;max-height:90%;width:auto;height:auto;object-fit:contain;object-position:center center !important}
.about-media-placeholder{text-align:center;color:#9fc4a8;padding:40px}
.about-media-placeholder .icon{font-size:48px;margin-bottom:12px}
.about-media-placeholder p{font-size:14px}

/* ===== FEATURES ===== */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{text-align:center;padding:40px 24px;border-radius:var(--radius);border:1px solid var(--line);transition:box-shadow .3s}
.feature-card:hover{box-shadow:var(--shadow)}
.feature-icon{width:56px;height:56px;margin:0 auto 20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px}
.feature-card h3{font-size:16px;margin-bottom:10px;font-weight:700}
.feature-card p{font-size:13px;color:var(--muted);line-height:1.6}

/* ===== TESTIMONIALS ===== */
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.testimonial-card{background:var(--cream);padding:32px 28px;border-radius:var(--radius);position:relative}
.testimonial-card::before{content:'\201C';font-size:60px;line-height:1;color:var(--green);opacity:.3;position:absolute;top:16px;left:20px}
.testimonial-card p{font-size:14px;line-height:1.7;color:var(--ink);margin-bottom:20px;position:relative;z-index:1}
.testimonial-card .author{font-weight:700;font-size:14px}
.testimonial-card .role{font-size:11px;color:var(--muted);margin-top:2px}

/* ===== NEWS ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{background:var(--white);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:box-shadow .3s}
.news-card:hover{box-shadow:var(--shadow)}
.news-card-img{display:flex;align-items:center;justify-content:center;aspect-ratio:16/10;overflow:hidden;background:var(--cream)}
.news-card-img img{max-width:90%;max-height:90%;width:auto;height:auto;object-fit:contain;object-position:center center !important}
.news-card-img .placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:32px}
.news-card-info{padding:22px 24px 24px}
.news-card-info .date{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.news-card-info h3{font-size:16px;margin:8px 0;line-height:1.4}

/* ===== CONTACT CTA ===== */
.contact-cta{background:var(--green);color:#fff;text-align:center;padding:100px 5vw}
.contact-cta h2{font-size:clamp(32px,4vw,48px);font-weight:800;margin-bottom:16px}
.contact-cta p{font-size:16px;color:#c5d9cb;max-width:600px;margin:0 auto 32px}
.contact-cta .btn{font-size:15px;padding:16px 36px}
.btn-white{background:#fff;color:var(--green)}
.btn-white:hover{background:var(--cream)}

/* ===== FOOTER ===== */
.site-footer{background:var(--ink);color:#999;padding:56px 5vw 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;max-width:1320px;margin:0 auto}
.footer-brand .brand-mark{width:44px;height:44px;margin-bottom:16px}
.footer-brand p{font-size:13px;line-height:1.7;max-width:280px;margin-bottom:16px}
.footer-col h4{color:#fff;font-size:13px;font-weight:700;margin-bottom:16px;text-transform:uppercase;letter-spacing:.08em}
.footer-col a{display:block;font-size:13px;color:#999;margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);text-align:center;font-size:11px;color:#666}

/* ===== PATENTS SECTION ===== */
.patents{background:var(--cream)}
.patents-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.patent-card{background:var(--white);padding:24px;border-radius:var(--radius);border:1px solid var(--line);display:flex;flex-direction:column}
.patent-card .flag{font-size:24px;margin-bottom:16px}
.patent-card h3{font-size:20px;margin-bottom:4px}
.patent-card p{font-size:13px;color:var(--muted);margin-bottom:20px}
.patent-card small{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}

/* ===== PRODUCT TABS ===== */
.product-tabs{display:flex;justify-content:center;gap:8px;margin-bottom:40px;flex-wrap:wrap}
.product-tab{padding:10px 22px;border-radius:30px;font-size:13px;font-weight:600;cursor:pointer;border:1px solid var(--line);background:transparent;color:var(--muted);transition:all .2s}
.product-tab:hover,.product-tab.active{background:var(--green);color:#fff;border-color:var(--green)}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
.hero{grid-template-columns:1fr;gap:40px;padding:120px 5vw 60px}
.hero-grid{aspect-ratio:16/9}
.categories,.features{grid-template-columns:repeat(3,1fr)}
.products-grid,.patents-grid{grid-template-columns:repeat(3,1fr)}
.testimonials,.news-grid{grid-template-columns:repeat(2,1fr)}
.about-grid{grid-template-columns:1fr}
.stats-row{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
nav{gap:20px}
nav a:not(.nav-cta){display:none}
.hero-copy h1{font-size:32px}
.hero-grid{aspect-ratio:1/1;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr 1fr}
.hero-grid-item:first-child{grid-row:span 1;grid-column:span 2}
.categories,.features,.testimonials,.news-grid{grid-template-columns:1fr}
.products-grid{grid-template-columns:repeat(2,1fr)}
.patents-grid{grid-template-columns:repeat(2,1fr)}
.stats-row{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
.products-grid,.patents-grid{grid-template-columns:1fr}
.hero{padding:110px 5vw 50px}
section{padding:60px 0}
}