/* ============================================================
   蓝泰食品官网 — 完整样式
   主色：深林绿 #1a4a35（原模板红色改为logo绿色）
   ============================================================ */

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",sans-serif;font-size:15px;line-height:1.7;color:#333;background:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{cursor:pointer}

/* ── 变量 ── */
:root{
  --red:#1a4a35;
  --red-dk:#122e22;
  --gold:#b8935a;
  --gold-lt:#f5ede0;
  --text:#333;
  --muted:#888;
  --border:#e5e5e5;
  --bg-lt:#f8f7f5;
  --w:1200px;
}

/* ── 容器 ── */
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}

/* ── 图片占位 ── */
.img-box{background:#e0d8d0;overflow:hidden;position:relative}
.img-box img{width:100%;height:100%;object-fit:cover;display:block}
.img-box[data-label]::after{
  content:attr(data-label);
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:12px;color:#aaa;background:#e0d8d0;pointer-events:none
}

/* ── 页头导航 ── */
.site-header{
  background:var(--red);
  position:sticky;top:0;z-index:200;
  box-shadow:0 2px 8px rgba(0,0,0,.25)
}
.site-header .wrap{display:flex;align-items:center;height:68px;gap:10px}
.site-logo{flex-shrink:0;display:flex;align-items:center;gap:10px}
.site-logo img{height:46px;width:auto}
.primary-nav{flex:1;display:flex;margin-left:20px}
.primary-nav a{
  color:rgba(255,255,255,.9);padding:0 16px;height:68px;
  display:flex;align-items:center;font-size:15px;
  transition:background .2s;white-space:nowrap
}
.primary-nav a:hover,.primary-nav a.active{background:rgba(0,0,0,.22)}
.header-right{flex-shrink:0;display:flex;align-items:center;gap:8px}
.btn-shop{
  border:1px solid rgba(255,255,255,.65);color:#fff;
  padding:8px 18px;border-radius:3px;font-size:14px;
  transition:.2s;white-space:nowrap
}
.btn-shop:hover{background:rgba(255,255,255,.15)}
.nav-toggle{
  display:none;background:none;border:none;
  flex-direction:column;gap:5px;padding:6px
}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;transition:.25s}

/* ── 首页轮播Banner ── */
.slider{position:relative;overflow:hidden;background:#0a1f14;user-select:none}
.slider-track{display:flex;transition:transform .55s ease}
.slider-item{flex-shrink:0;width:100%}
.slider-item .img-box{aspect-ratio:1920/700;min-height:480px}
.slider-item .img-box img{width:100%;height:100%;object-fit:cover}
.slider-btn{
  position:absolute;top:50%;transform:translateY(-50%);
  width:46px;height:60px;background:rgba(0,0,0,.38);
  border:none;color:#fff;font-size:22px;z-index:10;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s
}
.slider-btn:hover{background:rgba(0,0,0,.62)}
.slider-prev{left:0}.slider-next{right:0}
.slider-dots{
  position:absolute;bottom:16px;left:50%;transform:translateX(-50%);
  display:flex;gap:8px
}
.slider-dots button{
  width:36px;height:4px;background:rgba(255,255,255,.45);
  border:none;border-radius:2px;padding:0;transition:background .2s
}
.slider-dots button.on{background:#fff}

/* ── 产品分类图标行 ── */
.cat-row{background:#fff;border-bottom:1px solid var(--border)}
.cat-row .wrap{display:flex;border-left:1px solid var(--border)}
.cat-row a{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:8px;
  padding:18px 6px;border-right:1px solid var(--border);
  color:#444;font-size:14px;transition:.2s
}
.cat-row a:hover,.cat-row a.on{color:var(--red);background:var(--gold-lt)}
.cat-icon{width:56px;height:56px;overflow:hidden;position:relative;display:block;flex-shrink:0}
.cat-icon img{width:200%;height:56px;object-fit:cover;object-position:left center;display:block;transition:transform .3s ease}
.cat-row a:hover .cat-icon img,.cat-row a.on .cat-icon img{transform:translateX(-50%)}

/* ── 大图产品展示 ── */
.featured-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;padding:24px 0}
.featured-card{position:relative;overflow:hidden}
.featured-card .img-box{aspect-ratio:590/390;max-height:420px}
.featured-card .img-box img{transition:transform .45s}
.featured-card:hover .img-box img{transform:scale(1.05)}
.featured-body{
  position:absolute;bottom:0;left:0;right:0;
  background:linear-gradient(transparent,rgba(0,0,0,.58) 70%);
  padding:36px 32px 24px;color:#fff
}
.featured-body h3{font-size:20px;margin-bottom:6px}
.featured-body p{font-size:14px;opacity:.85;margin-bottom:10px}
.link-more{color:var(--gold);font-size:14px}

/* ── 底部三栏 ── */
.home-bottom{background:var(--bg-lt);border-top:1px solid var(--border)}
.home-bottom .wrap{display:grid;grid-template-columns:repeat(3,1fr)}
.home-cell{padding:48px 30px;border-right:1px solid var(--border);text-align:center}
.home-cell:last-child{border-right:none}
.home-cell h3{font-size:20px;color:var(--red);margin-bottom:12px}
.home-cell p{font-size:14px;color:var(--muted);margin-bottom:18px}
.home-cell .link-cell{display:inline-flex;align-items:center;gap:4px;color:var(--red);font-size:14px}
.home-cell .hotline-num{font-size:26px;color:var(--red);font-weight:bold}

/* ── 子页面 Banner ── */
.page-banner{background:#0f2d1e}
.page-banner .img-box{aspect-ratio:1920/380;max-height:320px}
.page-banner .img-box img{width:100%;height:100%;object-fit:cover}
/* ── 子页面纯色标题 Banner ── */
.page-hero{background:#0f2d1e;padding:56px 0 52px;text-align:center;color:#fff}
.page-hero h1{font-size:30px;font-weight:700;letter-spacing:.06em;margin-bottom:10px}
.page-hero p{font-size:14px;opacity:.65;letter-spacing:.04em}

/* ── 面包屑 ── */
.breadcrumb{background:#f5f3f0;border-bottom:1px solid var(--border)}
.breadcrumb .wrap{display:flex;align-items:center;gap:6px;height:42px;font-size:14px;color:var(--muted)}
.breadcrumb a{color:var(--red)}
.breadcrumb a:hover{text-decoration:underline}

/* ── 侧边栏 + 内容布局 ── */
.side-layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:30px;padding:30px 0 50px}
.sidebar-title{font-size:16px;font-weight:bold;color:#333;padding-bottom:12px;border-bottom:2px solid var(--red);margin-bottom:4px}
.side-nav-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;border-bottom:1px solid var(--border);
  color:#444;font-size:14px;transition:color .2s
}
.side-nav-list a:hover,.side-nav-list a.active{color:var(--red)}
.chevron{color:#ccc;font-size:12px}
.active .chevron{color:var(--red)}

/* ── 产品列表页 ── */
.page-cat-title{text-align:center;font-size:24px;color:#333;padding:30px 0 20px;letter-spacing:.08em}
.series-block{margin-bottom:36px}
.series-heading{font-size:17px;color:#333;padding-bottom:12px;border-bottom:1px solid var(--border);margin-bottom:20px}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.prod-card a{display:block;text-align:center;color:#333}
.prod-card .img-box{aspect-ratio:4/3;border:1px solid var(--border);border-radius:4px;background:#f8f6f3}
.prod-card .img-box img{object-fit:contain}
.prod-card h3{font-size:14px;padding:10px 6px 4px;line-height:1.4;transition:color .2s}
.prod-card:hover h3{color:var(--red)}

/* ── 产品详情页 ── */
.prod-subnav{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:68px;z-index:100}
.prod-subnav .wrap{display:flex;align-items:center;height:52px}
.prod-subnav-links{flex:1;display:flex}
.prod-subnav-links a{padding:0 24px;height:52px;display:flex;align-items:center;font-size:14px;color:#555;border-right:1px solid var(--border);transition:color .2s}
.prod-subnav-links a:hover{color:var(--red)}
.prod-subnav-actions{display:flex;gap:10px;padding-left:16px}
.btn-consult,.btn-buy{padding:9px 22px;border-radius:3px;font-size:14px}
.btn-consult{background:#fff;border:1px solid var(--gold);color:var(--gold);transition:.2s}
.btn-consult:hover{background:var(--gold);color:#fff}
.btn-buy{background:var(--gold);border:none;color:#fff;transition:.2s}
.btn-buy:hover{background:#9a7340}
.prod-main{display:grid;grid-template-columns:500px minmax(0,1fr);gap:40px;padding:36px 0}
.prod-thumb .img-box{aspect-ratio:4/3;border:1px solid var(--border);border-radius:4px;background:#f8f6f3}
.prod-thumb .img-box img{object-fit:contain}
.prod-thumb-list{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.thumb-item{width:72px;height:72px;border:2px solid var(--border);border-radius:4px;overflow:hidden;cursor:pointer;flex-shrink:0}
.thumb-item img{width:100%;height:100%;object-fit:cover}
.thumb-item.active,.thumb-item:hover{border-color:var(--red)}
.prod-series-label{font-size:14px;color:var(--muted);margin-bottom:8px}
.prod-name{font-size:28px;color:#333;line-height:1.3;margin-bottom:24px}
.sec-title{font-size:18px;color:#333;padding:26px 0 14px;border-bottom:2px solid var(--border)}
.params-table{width:100%;border-collapse:collapse;margin-top:16px}
.params-table td{border:1px solid #ddd;padding:11px 16px;font-size:14px;vertical-align:middle}
.params-table td:nth-child(odd){background:#faf8f5;width:100px;color:var(--muted);white-space:nowrap}
.detail-imgs .img-box{margin-bottom:12px;background:none}
.detail-imgs .img-box img{width:100%;height:auto;object-fit:unset}
.rec-recipes-slider{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:16px}
.rec-recipe-card a{display:block;text-align:center;color:#333}
.rec-recipe-card .img-box{aspect-ratio:1/1;border-radius:4px}
.rec-recipe-card h3{font-size:14px;padding:8px 4px 2px;line-height:1.4}
.rec-recipe-card:hover h3{color:var(--red)}

/* ── 菜谱列表页 ── */
.recipe-banners{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.recipe-banners .img-box{aspect-ratio:400/220}
.ingredient-tabs{background:var(--bg-lt);border-bottom:1px solid var(--border)}
.ingredient-tabs .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:0}
.tabs-label{font-size:14px;color:var(--muted);padding:14px 16px 14px 0;white-space:nowrap}
.tab-list{display:flex;flex-wrap:wrap;gap:8px;padding:14px 0}
.tab-list a{padding:7px 18px;border-radius:999px;font-size:14px;color:#444;background:#fff;border:1px solid var(--border);transition:.2s}
.tab-list a:hover,.tab-list a.on{background:var(--red);color:#fff;border-color:var(--red)}
.recipe-list-sec{padding:28px 0 50px}
.recipe-cat-title{font-size:20px;color:#333;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.recipe-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-bottom:28px}
.recipe-card a{display:block;text-align:center;color:#333}
.recipe-card .img-box{aspect-ratio:1/1;border-radius:6px}
.recipe-card .img-box img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.recipe-card:hover .img-box img{transform:scale(1.06)}
.recipe-card h3{font-size:14px;padding:8px 4px 2px;line-height:1.4}
.recipe-card:hover h3{color:var(--red)}
.pagination{text-align:center;padding:10px 0 20px;display:flex;justify-content:center;align-items:center;gap:4px}
.pagination a,.pagination span{min-width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);font-size:14px;color:#555;border-radius:2px;transition:.2s;padding:0 8px}
.pagination a:hover{border-color:var(--red);color:var(--red)}
.pagination span.cur{background:var(--red);border-color:var(--red);color:#fff}

/* ── 菜谱详情页 ── */
.recipe-detail-wrap{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:36px;padding:36px 0}
.recipe-hero .img-box{aspect-ratio:3/2;border-radius:6px}
.recipe-hero .img-box img{width:100%;height:100%;object-fit:cover}
.recipe-hero-title{font-size:26px;color:#333;margin:18px 0 8px}
.recipe-hero-meta{font-size:13px;color:var(--muted);display:flex;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.recipe-meta-boxes{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}
.recipe-meta-box{border:1px solid var(--border);text-align:center;padding:14px 6px;border-radius:4px;background:var(--bg-lt)}
.meta-val{font-size:22px;font-weight:bold;color:var(--red);line-height:1;margin-bottom:6px}
.meta-lbl{font-size:13px;color:var(--muted)}
.ingredient-box h3{font-size:16px;color:#333;margin-bottom:12px}
.ingr-list{display:flex;flex-direction:column}
.ingr-list li{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--border);font-size:14px}
.ingr-list li strong{color:#333}
.ingr-list li span{color:var(--muted)}
.recipe-steps-sec{padding:0 0 50px}
.steps-title{font-size:20px;color:#333;padding-bottom:14px;border-bottom:2px solid var(--border);margin-bottom:24px}
.steps-list{display:flex;flex-direction:column;gap:20px}
.step-item{display:grid;grid-template-columns:260px minmax(0,1fr);gap:22px;align-items:start}
.step-item .img-box{aspect-ratio:4/3;border-radius:6px}
.step-item .img-box img{width:100%;height:100%;object-fit:cover}
.step-num{display:inline-block;background:var(--red);color:#fff;font-size:13px;padding:3px 12px;border-radius:2px;margin-bottom:10px}
.step-desc{font-size:15px;line-height:1.85;color:#444}

/* ── 资讯列表页 ── */
.news-tabs-row{border-bottom:2px solid var(--border);margin-bottom:4px}
.news-tab-btn{display:inline-block;padding:12px 20px;font-size:15px;color:var(--muted);margin-bottom:-2px;border-bottom:2px solid transparent;background:none;border-top:none;border-left:none;border-right:none;transition:color .2s;cursor:pointer}
.news-tab-btn.on{color:var(--red);border-bottom-color:var(--red)}
.news-list{display:flex;flex-direction:column}
.news-item{display:block;padding:22px 0;border-bottom:1px solid var(--border);color:#333}
.news-item h3{font-size:16px;color:#333;margin-bottom:8px;line-height:1.55;transition:color .2s}
.news-item:hover h3{color:var(--red)}
.news-excerpt{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:8px}
.news-meta{font-size:13px;color:#bbb;display:flex;gap:16px}

/* ── 资讯详情页 ── */
.article-wrap{padding:36px 0 50px}
.article-head{margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.article-head h1{font-size:26px;color:#333;margin-bottom:12px;line-height:1.45}
.article-head .meta{font-size:14px;color:var(--muted);display:flex;gap:20px}
.article-body{font-size:15px;line-height:1.95;color:#444}
.article-body p{margin-bottom:16px}
.article-body img{max-width:100%;margin:20px 0;border-radius:4px}

/* ── 公司介绍页 ── */
.about-text{font-size:15px;line-height:2;color:#444}
.about-text p{margin-bottom:16px}
.about-video{margin:24px 0 32px;border-radius:8px;overflow:hidden;background:#000}
.about-video video{width:100%;display:block;max-height:480px}
.culture-area-title{font-size:22px;color:#333;padding:28px 0 16px;margin-top:16px;border-top:2px solid var(--border)}
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
.culture-card{position:relative;overflow:hidden;border-radius:4px}
.culture-card .img-box{aspect-ratio:380/240}
.culture-card .img-box img{width:100%;height:100%;object-fit:cover}
.culture-color-box{aspect-ratio:380/240;width:100%}
.culture-body{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.62));padding:30px 20px 16px;color:#fff}
.culture-body h4{font-size:16px;margin-bottom:5px}
.culture-body p{font-size:13px;opacity:.85}

/* ── 联系我们页 ── */
.contact-main{padding:30px 0 50px}
.contact-company-h1{font-size:26px;color:#333;margin-bottom:20px}
.contact-base{font-size:15px;color:#444;line-height:2.4;margin-bottom:30px}
.contact-sections{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.contact-card{border:1px solid var(--border);border-radius:6px;padding:22px;background:var(--bg-lt)}
.contact-card h3{font-size:16px;color:#333;padding-bottom:12px;border-bottom:1px solid var(--border);margin-bottom:14px}
.info-line{font-size:14px;color:#444;padding:6px 0;line-height:1.7}
.hotline-card{text-align:center;padding:36px 20px;background:var(--bg-lt);border-radius:6px}
.hotline-num{font-size:34px;color:var(--red);font-weight:bold;letter-spacing:.06em}
.hotline-sub{font-size:14px;color:var(--muted);margin-top:8px}
.online-shops a{display:block;padding:10px 16px;border:1px solid var(--border);border-radius:4px;color:#444;font-size:14px;margin-bottom:8px;transition:.2s}
.online-shops a:hover{border-color:var(--red);color:var(--red)}
.map-box{margin-top:24px;border:1px solid var(--border);border-radius:6px;overflow:hidden}
.map-box .img-box{aspect-ratio:16/7}
.map-box .img-box img{width:100%;height:100%;object-fit:cover}

/* ── 页脚 ── */
.site-footer{background:#1b1b1b;color:rgba(255,255,255,.72);margin-top:40px}
.footer-main{padding:40px 0 26px}
.footer-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
.footer-col h3{font-size:14px;color:rgba(255,255,255,.88);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:8px}
.footer-col a{font-size:13px;color:rgba(255,255,255,.56);transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-hotline{text-align:center}
.footer-hotline h3{font-size:15px;color:rgba(255,255,255,.88);margin-bottom:8px}
.footer-hotline .num{font-size:20px;color:#fff;font-weight:bold;word-break:break-all}
.footer-wechat{text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:flex-start}
.footer-wechat h3{font-size:14px;color:rgba(255,255,255,.88);margin-bottom:10px}
.footer-wechat img{width:80px;height:80px;object-fit:contain;border-radius:4px;display:block}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;justify-content:space-between;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.4);gap:10px}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:#fff}

/* ── 工具类 ── */
.text-red{color:var(--red)}
.text-muted{color:var(--muted)}

/* ── 响应式 ── */
@media(max-width:1024px){
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .recipe-grid{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:repeat(4,1fr)}
  .footer-wechat{display:none}
  .prod-main{grid-template-columns:1fr;max-width:600px}
  .rec-recipes-slider{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:820px){
  .nav-toggle{display:flex}
  .primary-nav{
    display:none;flex-direction:column;
    position:fixed;top:68px;left:0;right:0;
    background:var(--red);z-index:300;
    box-shadow:0 8px 20px rgba(0,0,0,.3)
  }
  .primary-nav.open{display:flex}
  .primary-nav a{height:48px;padding:0 24px;border-bottom:1px solid rgba(255,255,255,.1)}
  .side-layout{grid-template-columns:1fr}
  .sidebar{display:none}
  .home-bottom .wrap{grid-template-columns:1fr}
  .home-cell:not(:last-child){border-right:none;border-bottom:1px solid var(--border)}
  .recipe-detail-wrap{grid-template-columns:1fr}
  .contact-sections{grid-template-columns:1fr}
  .step-item{grid-template-columns:1fr}
  .rec-recipes-slider{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .featured-grid{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .recipe-grid{grid-template-columns:repeat(3,1fr)}
  .recipe-banners{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .footer-wechat{display:none}
  .culture-grid{grid-template-columns:1fr}
  .cat-row .wrap{flex-wrap:wrap}
  .cat-row a{width:25%;flex:none}
  .params-table{font-size:13px}
  .prod-name{font-size:22px}
  .recipe-hero-title{font-size:20px}
}