/*
Theme Name: Houyu Theme
Description: Poultry equipment company website theme
Version: 1.1
*/
:root{--primary:#12345b;--accent:#f39200;--light:#f4f6f9;--text:#333;--max:1200px}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Arial,Helvetica,sans-serif;color:var(--text);line-height:1.6;background:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.section{padding:70px 0}
.section-title{font-size:30px;color:var(--primary);text-align:center;margin-bottom:12px;text-transform:uppercase}
.section-sub{text-align:center;max-width:800px;margin:0 auto 40px;color:#666}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 28px;border:0;cursor:pointer;font-size:15px}
.btn:hover{background:var(--primary)}
/* top bar + header */
.topbar{background:var(--primary);color:#fff;font-size:13px;padding:7px 0}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.site-header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.08);position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:80px}
.logo{font-size:20px;font-weight:bold;color:var(--primary);max-width:320px}
.logo img{max-height:60px;width:auto}
.main-nav ul{display:flex;gap:6px}
.main-nav li{position:relative}
.main-nav a{display:block;padding:28px 16px;font-weight:600;text-transform:uppercase;font-size:14px}
.main-nav li:hover>a,.main-nav .current-menu-item>a{color:var(--accent)}
.main-nav ul ul{display:none;position:absolute;top:100%;left:0;background:#fff;min-width:260px;box-shadow:0 6px 16px rgba(0,0,0,.12);flex-direction:column;gap:0}
.main-nav li:hover>ul{display:flex}
.main-nav ul ul a{padding:11px 18px;font-size:13px;text-transform:none;border-bottom:1px solid #eee}
.menu-toggle{display:none;background:none;border:0;font-size:28px;cursor:pointer;color:var(--primary)}
/* banner */
.hero{position:relative}
.hero .swiper-slide{height:520px;background-size:cover;background-position:center;background-color:var(--primary);display:flex;align-items:center}
.hero .overlay{position:absolute;inset:0;background:rgba(18,52,91,.55)}
.hero .caption{position:relative;color:#fff;max-width:700px}
.hero h1{font-size:40px;margin-bottom:15px;line-height:1.25}
.hero p{margin-bottom:25px;font-size:17px}
/* features */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:-50px;position:relative;z-index:5}
.feature{background:#fff;padding:30px 22px;text-align:center;box-shadow:0 4px 18px rgba(0,0,0,.1);border-bottom:3px solid var(--accent)}
.feature h3{color:var(--primary);margin-bottom:8px}
.feature p{font-size:14px;color:#666}
/* products */
.grid-products{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.product-card{background:#fff;border:1px solid #e5e5e5;transition:.3s}
.product-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.12);transform:translateY(-4px)}
.product-card .thumb{aspect-ratio:4/3;background:var(--light);overflow:hidden}
.product-card .thumb img{width:100%;height:100%;object-fit:cover}
.product-card h3{padding:16px;font-size:16px;color:var(--primary);text-align:center}
/* advantages */
.adv-wrap{display:grid;grid-template-columns:1fr 1.3fr;gap:40px;align-items:center}
.adv-list li{display:flex;gap:16px;margin-bottom:18px;font-size:14px}
.adv-list .num{flex:0 0 44px;height:44px;background:var(--accent);color:#fff;font-weight:bold;display:flex;align-items:center;justify-content:center}
.bg-light{background:var(--light)}
/* about + counters */
.about-wrap{text-align:center;max-width:850px;margin:0 auto}
.about-wrap h2{color:var(--primary);font-size:28px;margin-bottom:15px}
.counters{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.counter b{display:block;font-size:46px;color:var(--accent)}
.counter span{color:#555}
/* news */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:25px}
.news-item{border:1px solid #e5e5e5;padding:22px;background:#fff}
.news-item h3{color:var(--primary);margin-bottom:8px}
.news-item .date{font-size:13px;color:#888;margin-bottom:8px}
/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.contact-grid h3{color:var(--primary);margin-bottom:12px}
.contact-grid p{margin-bottom:10px}
.form input,.form textarea{width:100%;padding:12px;border:1px solid #ccc;margin-bottom:12px;font-family:inherit;font-size:14px}
.notice{background:#e6f4ea;padding:12px;margin-bottom:14px;color:#1e6b34}
/* inner pages */
.page-banner{background:var(--primary);color:#fff;padding:50px 0;text-align:center}
.page-banner h1{font-size:32px}
.content{padding:50px 0}
.content p{margin-bottom:14px}
.content h2,.content h3{color:var(--primary);margin:20px 0 10px}
.single-product-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.cat-filter{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:30px}
.cat-filter a{padding:8px 18px;border:1px solid #ccc;font-size:14px}
.cat-filter a.active,.cat-filter a:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.pagination{text-align:center;margin-top:30px}
.pagination a,.pagination span{padding:8px 14px;border:1px solid #ccc;margin:0 3px}
/* footer */
.site-footer{background:#0d2740;color:#cfd8e3;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.site-footer h4{color:#fff;margin-bottom:14px;text-transform:uppercase}
.site-footer li{margin-bottom:8px;font-size:14px}
.site-footer a:hover{color:var(--accent)}
.copyright{border-top:1px solid #22405f;margin-top:35px;padding:16px 0;text-align:center;font-size:13px}
/* floating */
.float-bar{position:fixed;right:12px;bottom:90px;z-index:60;display:flex;flex-direction:column;gap:8px}
.float-bar a{width:46px;height:46px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:bold;border-radius:50%}
.float-bar a:hover{background:var(--primary)}
/* mobile */
@media(max-width:900px){
.menu-toggle{display:block}
.main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 6px 12px rgba(0,0,0,.1)}
.main-nav.open{display:block}
.main-nav ul{flex-direction:column}
.main-nav a{padding:14px 20px}
.main-nav ul ul{display:block;position:static;box-shadow:none;padding-left:15px}
.features,.grid-products,.adv-wrap,.news-list,.contact-grid,.footer-grid,.single-product-wrap,.counters{grid-template-columns:1fr}
.hero .swiper-slide{height:380px}.hero h1{font-size:26px}
.features{margin-top:20px}
}

/* ===== v1.1 : design upgrade + animations ===== */
html{scroll-behavior:smooth}
.hero .container{width:100%}
/* hero */
.hero .swiper-slide{height:600px;overflow:hidden;background:linear-gradient(120deg,#0d2740 0%,#12345b 55%,#1d5a96 100%)}
.hero .swiper-slide::before{content:"";position:absolute;inset:0;background:inherit;background-size:cover;background-position:center;transform:scale(1);transition:transform 8s ease-out}
.hero .swiper-slide-active::before{transform:scale(1.12)}
.hero .swiper-slide[style*="background-image"]::before{background-image:inherit}
.hero .overlay{background:linear-gradient(90deg,rgba(13,39,64,.85),rgba(13,39,64,.25));z-index:1}
.hero .container{position:relative;z-index:2}
.hero .caption{border-left:5px solid var(--accent);padding-left:26px}
.hero h1{font-size:46px;text-shadow:0 2px 10px rgba(0,0,0,.35)}
.hero .swiper-slide-active .caption h1{animation:fadeUp .9s .2s both}
.hero .swiper-slide-active .caption p{animation:fadeUp .9s .5s both}
.hero .swiper-slide-active .caption .btn{animation:fadeUp .9s .8s both}
.hero .swiper-pagination-bullet{width:12px;height:12px;background:#fff;opacity:.6}
.hero .swiper-pagination-bullet-active{background:var(--accent);opacity:1;width:34px;border-radius:6px}
.hero .swiper-button-next,.hero .swiper-button-prev{color:#fff;transform:scale(.7)}
@keyframes fadeUp{from{opacity:0;transform:translateY(35px)}to{opacity:1;transform:none}}
/* header */
.site-header{transition:.3s}
.site-header.scrolled .container{min-height:62px}
.site-header.scrolled{box-shadow:0 4px 18px rgba(0,0,0,.15)}
.main-nav>ul>li>a{position:relative}
.main-nav>ul>li>a::after{content:"";position:absolute;left:16px;right:16px;bottom:18px;height:2px;background:var(--accent);transform:scaleX(0);transition:transform .3s}
.main-nav>ul>li:hover>a::after,.main-nav>ul>.current-menu-item>a::after{transform:scaleX(1)}
.main-nav ul ul{opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s;display:flex}
.main-nav li:hover>ul{opacity:1;visibility:visible;transform:none}
.main-nav ul ul a:hover{background:var(--light);padding-left:24px;color:var(--accent)}
/* buttons */
.btn{position:relative;overflow:hidden;z-index:1;transition:.3s;letter-spacing:.5px}
.btn::before{content:"";position:absolute;inset:0;background:var(--primary);transform:translateX(-101%);transition:transform .35s;z-index:-1}
.btn:hover::before{transform:none}
.btn:hover{background:var(--accent);box-shadow:0 8px 20px rgba(0,0,0,.25);transform:translateY(-2px)}
/* section titles */
.section-title{position:relative;padding-bottom:16px}
.section-title::after{content:"";position:absolute;left:50%;bottom:0;width:70px;height:3px;background:var(--accent);transform:translateX(-50%)}
.adv-wrap .section-title::after{left:0;transform:none}
/* features */
.feature{transition:.35s;border-bottom:3px solid var(--accent)}
.feature:hover{transform:translateY(-10px);box-shadow:0 14px 30px rgba(0,0,0,.16);background:var(--primary)}
.feature:hover h3,.feature:hover p{color:#fff}
.feature .ico{width:64px;height:64px;margin:0 auto 14px;border-radius:50%;background:var(--light);display:flex;align-items:center;justify-content:center;font-size:28px;transition:.4s}
.feature:hover .ico{background:var(--accent);transform:rotateY(360deg)}
/* products */
.product-card{position:relative;overflow:hidden;border-radius:4px}
.product-card .thumb{position:relative;background:linear-gradient(135deg,#e9eef5,#f9fbfd)}
.product-card .thumb img{transition:transform .6s}
.product-card:hover .thumb img{transform:scale(1.1)}
.product-card .thumb::after{content:"View Details  \2192";position:absolute;inset:0;background:rgba(18,52,91,.78);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:bold;opacity:0;transition:.4s}
.product-card:hover .thumb::after{opacity:1}
.product-card h3{border-top:3px solid transparent;transition:.3s}
.product-card:hover h3{border-top-color:var(--accent)}
/* advantages */
.adv-panel{background:linear-gradient(135deg,var(--primary),#1d5a96);color:#fff;padding:40px;border-radius:6px;position:relative;overflow:hidden}
.adv-panel::after{content:"";position:absolute;right:-60px;bottom:-60px;width:200px;height:200px;border-radius:50%;background:rgba(243,146,0,.25)}
.adv-panel h2{margin-bottom:14px;font-size:30px}
.adv-list li{padding:14px;background:#fff;border-radius:4px;transition:.3s;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.adv-list li:hover{transform:translateX(10px);box-shadow:0 6px 18px rgba(0,0,0,.12)}
.adv-list .num{transition:.3s}
.adv-list li:hover .num{background:var(--primary)}
/* counters */
.counters{background:var(--primary);padding:40px 20px;border-radius:6px}
.counter b{font-size:52px}
.counter span{color:#d6e0ec}
/* news */
.news-item{transition:.35s;border-left:4px solid transparent}
.news-item:hover{border-left-color:var(--accent);transform:translateY(-6px);box-shadow:0 12px 26px rgba(0,0,0,.12)}
/* inner banner */
.page-banner{background:linear-gradient(120deg,#0d2740,#1d5a96);position:relative;overflow:hidden}
.page-banner::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:rgba(243,146,0,.2)}
.page-banner h1{position:relative;animation:fadeUp .8s both}
/* form */
.form input:focus,.form textarea:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px rgba(243,146,0,.2)}
/* floating */
.float-bar a{transition:.3s;animation:pulse 2.4s infinite}
.float-bar a:hover{transform:scale(1.15)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(243,146,0,.6)}70%{box-shadow:0 0 0 14px rgba(243,146,0,0)}100%{box-shadow:0 0 0 0 rgba(243,146,0,0)}}
/* scroll reveal */
.js .reveal{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s ease}
.js .reveal.in{opacity:1;transform:none}
.js .reveal.from-left{transform:translateX(-50px)}
.js .reveal.from-left.in{transform:none}
@media(max-width:900px){.hero .swiper-slide{height:420px}.hero h1{font-size:27px}.main-nav>ul>li>a::after{display:none}.main-nav ul ul{opacity:1;visibility:visible;transform:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}}