/* ========================================
   鹿野农仓 · 公共样式框架
   Brand: 鹿野农仓 (LuYe Nongcang)
   Company: 云南唯璐科技有限公司
   ======================================== */

/* ── CSS Variables ── */
:root {
  /* 品牌色 */
  --c-primary: #2F6B3C;
  --c-primary-light: #3A8A4E;
  --c-primary-dark: #1E4D2A;
  --c-primary-bg: rgba(47,107,60,0.06);
  --c-primary-bg-hover: rgba(47,107,60,0.12);
  /* 辅色 */
  --c-gold: #E8A33D;
  --c-gold-light: #F5C06A;
  --c-gold-bg: rgba(232,163,61,0.08);
  --c-blue: #2C6E8F;
  --c-blue-light: #3E94BD;
  --c-blue-bg: rgba(44,110,143,0.06);
  /* 中性色 */
  --c-white: #FFFFFF;
  --c-cream: #FAF8F3;
  --c-bg: #F5F3EE;
  --c-border: #E5E2D9;
  --c-border-light: #EDEAE3;
  --c-text: #26281F;
  --c-text-2: #5C5E55;
  --c-text-3: #8C8E85;
  --c-text-inv: #FFFFFF;
  /* 功能色 */
  --c-success: #00B42A;
  --c-warning: #FF7D00;
  --c-danger: #F53F3F;
  --c-info: #165DFF;
  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
  /* 圆角 */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-full: 9999px;
  /* 间距 */
  --gutter: 1200px;
  --gap: 24px;
  /* 过渡 */
  --ease: cubic-bezier(0.4,0,0.2,1);
  --duration: 0.2s;
}

/* ── Reset & Base ── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;color:var(--c-text);background:var(--c-bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--c-primary);text-decoration:none;transition:color var(--duration) var(--ease)}
a:hover{color:var(--c-primary-light)}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
button{cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3;color:var(--c-text)}

/* ── Utility ── */
.container{width:100%;max-width:var(--gutter);margin:0 auto;padding:0 var(--gap)}
.section{padding:64px 0}
.section-title{font-size:28px;font-weight:700;text-align:center;margin-bottom:12px}
.section-desc{text-align:center;color:var(--c-text-3);font-size:15px;margin-bottom:40px;max-width:600px;margin-left:auto;margin-right:auto}
.section-header{text-align:center;margin-bottom:48px}
.section-tag{display:inline-block;padding:4px 12px;border-radius:var(--r-full);font-size:12px;font-weight:500;letter-spacing:0.5px;margin-bottom:12px}
.tag-green{background:var(--c-primary-bg);color:var(--c-primary)}
.tag-gold{background:var(--c-gold-bg);color:var(--c-gold)}
.tag-blue{background:var(--c-blue-bg);color:var(--c-blue)}
.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-24{gap:24px}.gap-32{gap:32px}
.grid{display:grid}
.text-center{text-align:center}
.text-primary{color:var(--c-primary)}
.text-gold{color:var(--c-gold)}
.text-blue{color:var(--c-blue)}
.text-2{color:var(--c-text-2)}
.text-3{color:var(--c-text-3)}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 24px;border-radius:var(--r-md);font-size:14px;font-weight:500;transition:all var(--duration) var(--ease);gap:6px;white-space:nowrap}
.btn-sm{height:36px;padding:0 16px;font-size:13px}
.btn-lg{height:52px;padding:0 32px;font-size:16px;border-radius:var(--r-lg)}
.btn-primary{background:var(--c-primary);color:var(--c-text-inv)}
.btn-primary:hover{background:var(--c-primary-light);color:var(--c-text-inv);box-shadow:var(--shadow-md)}
.btn-outline{border:1.5px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn-outline:hover{background:var(--c-primary);color:var(--c-text-inv)}
.btn-gold{background:var(--c-gold);color:var(--c-text)}
.btn-gold:hover{background:var(--c-gold-light);box-shadow:var(--shadow-md)}
.btn-white{background:var(--c-white);color:var(--c-primary)}
.btn-white:hover{background:var(--c-cream);box-shadow:var(--shadow-md)}
.btn-ghost{color:var(--c-text-2);border:1px solid var(--c-border)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn-text{color:var(--c-primary);padding:0;height:auto}
.btn-text:hover{text-decoration:underline}

/* ── Cards ── */
.card{background:var(--c-white);border-radius:var(--r-lg);overflow:hidden;transition:all var(--duration) var(--ease)}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.card-img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--c-bg)}
.card-body{padding:16px}
.card-title{font-size:16px;font-weight:600;margin-bottom:8px}
.card-desc{font-size:13px;color:var(--c-text-3);line-height:1.6}

/* ── Announcement Bar ── */
.announcement{background:var(--c-primary);color:var(--c-text-inv);text-align:center;padding:8px 0;font-size:13px;position:relative;z-index:100}
.announcement a{color:var(--c-gold-light)}
.announcement a:hover{color:var(--c-gold)}
.announcement-close{position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--c-text-inv);font-size:16px;opacity:0.6;cursor:pointer}
.announcement-close:hover{opacity:1}

/* ── Header ── */
.header{background:var(--c-white);border-bottom:1px solid var(--c-border-light);position:sticky;top:0;z-index:90;transition:box-shadow var(--duration) var(--ease)}
.header.scrolled{box-shadow:var(--shadow-sm)}
.header-top{display:flex;align-items:center;justify-content:space-between;height:64px}
.header-logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:var(--c-primary)}
.header-logo .logo-icon{width:36px;height:36px;background:var(--c-primary);border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;color:var(--c-text-inv);font-size:18px;font-weight:700}
.header-search{flex:1;max-width:480px;margin:0 32px}
.header-search .search-box{display:flex;align-items:center;height:40px;border:1.5px solid var(--c-border);border-radius:var(--r-full);padding:0 16px;transition:border-color var(--duration) var(--ease)}
.header-search .search-box:focus-within{border-color:var(--c-primary)}
.header-search input{flex:1;height:100%;font-size:14px;color:var(--c-text)}
.header-search input::placeholder{color:var(--c-text-3)}
.header-search .search-btn{color:var(--c-text-3);font-size:16px;padding:4px;cursor:pointer}
.header-search .search-btn:hover{color:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:16px}
.header-actions .action-btn{display:flex;align-items:center;gap:4px;font-size:14px;color:var(--c-text-2);cursor:pointer;transition:color var(--duration) var(--ease);position:relative}
.header-actions .action-btn:hover{color:var(--c-primary)}
.header-actions .cart-badge{position:absolute;top:-4px;right:-8px;min-width:16px;height:16px;border-radius:var(--r-full);background:var(--c-danger);color:var(--c-white);font-size:10px;font-weight:600;display:flex;align-items:center;justify-content:center;padding:0 4px}

/* ── Navigation ── */
.nav{background:var(--c-white);border-bottom:1px solid var(--c-border-light)}
.nav-inner{display:flex;align-items:center;justify-content:center;height:48px;gap:0}
.nav-item{position:relative;font-size:15px;color:var(--c-text);padding:0 20px;height:48px;display:flex;align-items:center;cursor:pointer;transition:color var(--duration) var(--ease)}
.nav-item:hover,.nav-item.active{color:var(--c-primary)}
.nav-item::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:2.5px;background:var(--c-primary);border-radius:2px;transition:width var(--duration) var(--ease)}
.nav-item:hover::after,.nav-item.active::after{width:60%}
.nav-item .nav-arrow{font-size:10px;margin-left:4px;color:var(--c-text-3);transition:transform var(--duration) var(--ease)}
.nav-item:hover .nav-arrow{transform:rotate(180deg);color:var(--c-primary)}

/* ── Hero Banner ── */
.hero{position:relative;overflow:hidden;background:var(--c-primary-dark)}
.hero-slider{position:relative;height:480px}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 0.6s var(--ease)}
.hero-slide.active{opacity:1}
.hero-slide-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.hero-slide-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(30,77,42,0.85) 0%,rgba(47,107,60,0.6) 100%)}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;max-width:560px;color:var(--c-text-inv)}
.hero-content h2{font-size:36px;font-weight:700;margin-bottom:16px;line-height:1.3}
.hero-content p{font-size:16px;opacity:0.9;margin-bottom:24px;line-height:1.7}
.hero-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.hero-dot{width:8px;height:8px;border-radius:var(--r-full);background:rgba(255,255,255,0.4);cursor:pointer;transition:all var(--duration) var(--ease)}
.hero-dot.active{width:24px;background:var(--c-white)}

/* ── Business Entries (四大业务入口) ── */
.entries{padding:64px 0}
.entries-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.entry-card{text-align:center;padding:32px 20px;border-radius:var(--r-xl);background:var(--c-white);transition:all var(--duration) var(--ease);cursor:pointer}
.entry-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.entry-icon{width:64px;height:64px;border-radius:var(--r-lg);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:28px}
.entry-icon.green{background:var(--c-primary-bg);color:var(--c-primary)}
.entry-icon.gold{background:var(--c-gold-bg);color:var(--c-gold)}
.entry-icon.blue{background:var(--c-blue-bg);color:var(--c-blue)}
.entry-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.entry-card p{font-size:13px;color:var(--c-text-3);line-height:1.5}

/* ── Product Grid ── */
.products-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.product-card{background:var(--c-white);border-radius:var(--r-lg);overflow:hidden;transition:all var(--duration) var(--ease)}
.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.product-img{position:relative;aspect-ratio:1;overflow:hidden;background:var(--c-bg)}
.product-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s var(--ease)}
.product-card:hover .product-img img{transform:scale(1.05)}
.product-tag{position:absolute;top:8px;left:8px;padding:2px 8px;border-radius:var(--r-full);font-size:11px;font-weight:500}
.product-tag.hot{background:var(--c-danger);color:var(--c-white)}
.product-tag.new{background:var(--c-primary);color:var(--c-white)}
.product-tag.sale{background:var(--c-gold);color:var(--c-text)}
.product-info{padding:14px}
.product-name{font-size:14px;font-weight:500;margin-bottom:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-origin{font-size:12px;color:var(--c-text-3);margin-bottom:8px}
.product-bottom{display:flex;align-items:baseline;justify-content:space-between}
.product-price{font-size:18px;font-weight:700;color:var(--c-danger)}
.product-price .unit{font-size:12px;font-weight:400}
.product-price .original{font-size:12px;color:var(--c-text-3);text-decoration:line-through;margin-left:6px;font-weight:400}
.product-sold{font-size:12px;color:var(--c-text-3)}

/* ── Story Cards (助农故事) ── */
.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.story-card{background:var(--c-white);border-radius:var(--r-lg);overflow:hidden;transition:all var(--duration) var(--ease)}
.story-card:hover{box-shadow:var(--shadow-lg)}
.story-img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--c-bg)}
.story-body{padding:20px}
.story-label{display:inline-block;padding:2px 8px;border-radius:var(--r-full);font-size:11px;font-weight:500;background:var(--c-gold-bg);color:var(--c-gold);margin-bottom:10px}
.story-title{font-size:16px;font-weight:600;margin-bottom:8px;line-height:1.4}
.story-text{font-size:13px;color:var(--c-text-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ── Ranking (爆款榜单) ── */
.ranking-tabs{display:flex;justify-content:center;gap:0;margin-bottom:32px}
.ranking-tab{padding:10px 24px;font-size:14px;font-weight:500;color:var(--c-text-3);cursor:pointer;border-bottom:2.5px solid transparent;transition:all var(--duration) var(--ease)}
.ranking-tab:hover{color:var(--c-text)}
.ranking-tab.active{color:var(--c-primary);border-color:var(--c-primary)}
.ranking-list{max-width:800px;margin:0 auto}
.ranking-item{display:flex;align-items:center;gap:16px;padding:14px 16px;border-radius:var(--r-md);transition:background var(--duration) var(--ease)}
.ranking-item:hover{background:var(--c-cream)}
.ranking-num{width:28px;height:28px;border-radius:var(--r-sm);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.ranking-num.top1{background:var(--c-gold);color:var(--c-text)}
.ranking-num.top2{background:#C0C0C0;color:var(--c-text)}
.ranking-num.top3{background:#CD7F32;color:var(--c-white)}
.ranking-num.normal{background:var(--c-bg);color:var(--c-text-3)}
.ranking-thumb{width:48px;height:48px;border-radius:var(--r-sm);object-fit:cover;flex-shrink:0;background:var(--c-bg)}
.ranking-info{flex:1;min-width:0}
.ranking-name{font-size:14px;font-weight:500;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ranking-data{font-size:12px;color:var(--c-text-3)}
.ranking-price{font-size:16px;font-weight:700;color:var(--c-danger);flex-shrink:0}

/* ── Trace Section (溯源) ── */
.trace-section{background:var(--c-primary-dark);color:var(--c-text-inv);padding:64px 0}
.trace-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.trace-visual{position:relative;border-radius:var(--r-xl);overflow:hidden;aspect-ratio:4/3;background:rgba(255,255,255,0.1)}
.trace-content h3{font-size:24px;margin-bottom:16px}
.trace-content p{font-size:15px;opacity:0.85;line-height:1.7;margin-bottom:24px}
.trace-steps{display:flex;flex-direction:column;gap:16px}
.trace-step{display:flex;align-items:center;gap:12px}
.trace-step-num{width:32px;height:32px;border-radius:var(--r-full);background:var(--c-gold);color:var(--c-text);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.trace-step-text{font-size:14px;opacity:0.9}

/* ── Trade Section (进出口) ── */
.trade-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.trade-card{border-radius:var(--r-xl);overflow:hidden;position:relative;min-height:280px;display:flex;flex-direction:column;justify-content:flex-end;padding:32px;background-size:cover;background-position:center;background-color:var(--c-primary-dark)}
.trade-card::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 0%,rgba(0,0,0,0.6) 100%)}
.trade-card>*{position:relative;z-index:1}
.trade-card h3{font-size:22px;color:var(--c-white);margin-bottom:8px}
.trade-card p{font-size:14px;color:rgba(255,255,255,0.85);margin-bottom:16px;line-height:1.6}
.trade-card.import{background:linear-gradient(135deg,#2C6E8F,#3E94BD)}
.trade-card.export{background:linear-gradient(135deg,#2F6B3C,#3A8A4E)}

/* ── Qualification Bar (品牌墙) ── */
.qualifications{padding:48px 0;background:var(--c-white)}
.qual-list{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:32px}
.qual-item{text-align:center}
.qual-icon{width:56px;height:56px;border-radius:var(--r-lg);background:var(--c-primary-bg);display:flex;align-items:center;justify-content:center;margin:0 auto 8px;color:var(--c-primary);font-size:24px}
.qual-text{font-size:13px;color:var(--c-text-2)}

/* ── Footer ── */
.footer{background:var(--c-text);color:rgba(255,255,255,0.7);padding:48px 0 0}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-brand h3{font-size:20px;color:var(--c-white);margin-bottom:12px}
.footer-brand p{font-size:13px;line-height:1.7;margin-bottom:16px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--c-white);margin-bottom:16px}
.footer-col a{display:block;font-size:13px;color:rgba(255,255,255,0.6);padding:4px 0;transition:color var(--duration) var(--ease)}
.footer-col a:hover{color:var(--c-gold-light)}
.footer-bottom{padding:20px 0;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:rgba(255,255,255,0.4);flex-wrap:wrap;gap:12px}
.footer-bottom a{color:rgba(255,255,255,0.4);font-size:12px}
.footer-bottom a:hover{color:var(--c-white)}

/* ── Responsive ── */
@media(max-width:1024px){
  :root{--gutter:960px;--gap:20px}
  .hero-slider{height:380px}
  .hero-content h2{font-size:28px}
  .entries-grid{grid-template-columns:repeat(2,1fr)}
  .products-grid{grid-template-columns:repeat(3,1fr)}
  .story-grid{grid-template-columns:repeat(2,1fr)}
  .trace-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  :root{--gutter:100%;--gap:16px}
  .container{padding:0 16px}
  .section{padding:40px 0}
  .section-title{font-size:22px}
  .hero-slider{height:300px}
  .hero-content h2{font-size:22px}
  .hero-content p{font-size:14px}
  .entries-grid{grid-template-columns:1fr 1fr;gap:12px}
  .entry-card{padding:20px 12px}
  .entry-icon{width:48px;height:48px;font-size:22px}
  .products-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .story-grid{grid-template-columns:1fr}
  .trade-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr}
  .header-search{margin:0 16px}
  .nav-inner{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .nav-item{padding:0 12px;font-size:14px;white-space:nowrap}
}

/* ── Animations ── */
@keyframes fadeInUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.animate-in{animation:fadeInUp 0.6s var(--ease) both}