/* ===========================================================
   大闸蟹商城 · 响应式官方风格设计系统
   桌面端宽屏居中 + 移动端单列，全站统一
   =========================================================== */
:root{
  --primary:#C8102E;
  --primary-2:#E23A4E;
  --primary-dark:#8E0E22;
  --gold:#C9A227;
  --ink:#211C19;
  --text:#332B27;
  --muted:#8A7E76;
  --bg:#FBF7F2;
  --surface:#FFFFFF;
  --line:#ECE3DA;
  --grad:linear-gradient(120deg,#8E0E22,#C8102E 55%,#E23A4E);
  --grad-soft:linear-gradient(135deg,#fff5f0,#fdeee6);
  --shadow:0 10px 30px rgba(80,20,10,.10);
  --shadow-sm:0 4px 16px rgba(80,20,10,.07);
  --radius:16px;
  --radius-sm:12px;
  --maxw:1200px;
  --serif:"Songti SC","STSong","SimSun","Noto Serif SC","Source Han Serif SC",serif;
  --gold-soft:#f3e6c4;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink)}
button{font-family:inherit}

/* ===== 内容容器（桌面居中 1200） ===== */
.wrap{max-width:var(--maxw);margin:0 auto;background:var(--surface);min-height:100vh;
  box-shadow:0 0 50px rgba(60,20,10,.05);position:relative;overflow:hidden}
.container{padding:0 16px}
@media(min-width:768px){.container{padding:0 24px}}

/* ===== 通用组件 ===== */
.grad{background:var(--grad);color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:var(--radius-sm);
  padding:13px 18px;font-size:15px;font-weight:700;cursor:pointer;background:var(--grad);color:#fff;width:100%;
  transition:.2s;box-shadow:0 6px 16px rgba(200,16,46,.22)}
.btn:active{transform:scale(.98)}
.btn:hover{filter:brightness(1.05)}
.btn:disabled{opacity:.6;pointer-events:none}
.btn.loading{position:relative;color:transparent}
.btn.loading:after{content:"";position:absolute;left:50%;top:50%;width:16px;height:16px;margin:-8px 0 0 -8px;
  border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.btn.ghost{background:#fff;color:var(--primary);border:1px solid rgba(200,16,46,.35);box-shadow:none}
.btn.gray{background:#f1e9e4;color:var(--muted)}
.btn.sm{padding:9px 14px;font-size:13px;width:auto;border-radius:10px}

.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px;margin:14px 0;border:1px solid #f6efe8;
  transition:box-shadow .25s,transform .25s}
@media(hover:hover){.card:hover{box-shadow:var(--shadow)}}
.tag{display:inline-block;font-size:11px;padding:2px 9px;border-radius:20px;background:#fdeaec;color:var(--primary);font-weight:600}
.tag.green{background:#eafaf0;color:#18a058}
.tag.gray{background:#f0f2f5;color:#8a7e76}
.tag.gold{background:#fbf3df;color:var(--gold)}
.price{color:var(--primary);font-weight:800}
.price .num{font-size:20px}
.muted{color:var(--muted)}
.row{display:flex;align-items:center;gap:10px}
.between{justify-content:space-between}
.center{text-align:center}
.line-clamp{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

/* ===== 顶部导航（桌面）+ 移动汉堡 ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:18px;height:64px;padding:0 16px}
.brand{font-size:21px;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:8px;white-space:nowrap;flex-shrink:0;font-family:var(--serif);letter-spacing:1px}
.brand .logo-mark{font-size:24px}
.nav-menu{display:flex;gap:2px;margin-left:6px}
.nav-menu a{padding:8px 14px;border-radius:10px;font-size:15px;font-weight:600;color:var(--ink);transition:.2s}
.nav-menu a:hover{background:var(--bg);color:var(--primary)}
.nav-menu a.active{color:var(--primary)}
.nav-search{flex:1;max-width:340px;position:relative}
.nav-search input{width:100%;padding:10px 14px 10px 38px;border:1px solid var(--line);border-radius:22px;background:var(--bg);font-size:14px;transition:.2s}
.nav-search input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(200,16,46,.10)}
.nav-search:before{content:"🔍";position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:14px;opacity:.55}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.nav-cart{position:relative;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:6px;font-size:14px}
.nav-cart i{position:absolute;top:-9px;right:-12px;background:var(--primary);color:#fff;font-style:normal;font-size:11px;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px}
.nav-user{padding:8px 16px;border-radius:22px;background:var(--grad);color:#fff;font-weight:700;font-size:14px;box-shadow:0 4px 12px rgba(200,16,46,.2)}
.nav-user.ghost{background:#fff;color:var(--primary);border:1px solid rgba(200,16,46,.35);box-shadow:none}
.nav-toggle{display:none;border:0;background:transparent;font-size:24px;cursor:pointer;color:var(--ink);padding:4px 6px}
.mobile-menu{display:none;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:6px 0}
.mobile-menu a{padding:13px 20px;font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid #f6efe8}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu.show{display:flex}

/* ==== 首页 Hero 大气横幅（真实蟹礼盒大图 + 红金压暗） ==== */
.hero{position:relative;margin:0;color:#fff;overflow:hidden;min-height:380px;display:flex;align-items:center;
  background:linear-gradient(105deg,rgba(46,8,10,.86) 0%,rgba(120,18,20,.55) 45%,rgba(40,8,10,.30) 100%),
             url('../img/hero-crab.png') center/cover no-repeat;
  background-color:#2a0a0c}
.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(60% 120% at 20% 0%,rgba(201,162,39,.18),transparent 60%)}
.hero:after{content:"";position:absolute;right:6%;bottom:-40px;width:230px;height:230px;border:1px solid rgba(201,162,39,.35);border-radius:50%;opacity:.5}
.hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:56px 24px}
.hero-eyebrow{display:inline-block;font-size:12px;letter-spacing:4px;color:var(--gold-soft);font-weight:700;
  border:1px solid rgba(201,162,39,.55);padding:5px 16px;border-radius:30px;margin-bottom:16px;background:rgba(0,0,0,.18)}
.hero-t{font-family:var(--serif);font-size:36px;font-weight:800;letter-spacing:3px;line-height:1.3;text-shadow:0 2px 16px rgba(0,0,0,.5)}
.hero-t .em{color:var(--gold-soft)}
.hero-s{font-size:15px;opacity:.95;margin-top:14px;max-width:480px;text-shadow:0 1px 8px rgba(0,0,0,.5)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.hero-badges span{font-size:12px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);padding:5px 12px;border-radius:20px;backdrop-filter:blur(4px)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-cta .btn{width:auto;padding:13px 30px;font-size:15px}
.hero-cta .btn.white{background:#fff;color:var(--primary);box-shadow:0 8px 22px rgba(0,0,0,.25)}
.hero-cta .btn.trans{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.5);box-shadow:none;color:#fff}

/* ==== 信任条 ==== */
.trust{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding:18px 16px}
.trust-item{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid #f6efe8;border-radius:14px;padding:12px 14px;box-shadow:var(--shadow-sm)}
.trust-item .ti-ic{width:40px;height:40px;border-radius:12px;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.trust-item .ti-t{font-weight:700;font-size:14px;color:var(--ink)}
.trust-item .ti-s{font-size:12px;color:var(--muted)}

/* ==== 区块通用 ==== */
.section{max-width:var(--maxw);margin:0 auto;padding:24px 16px 0}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.section-title{display:flex;align-items:center;font-family:var(--serif);font-weight:800;font-size:21px;color:var(--ink);letter-spacing:1px}
.section-title:before{content:"";width:5px;height:20px;border-radius:3px;background:linear-gradient(180deg,var(--gold),var(--primary));margin-right:11px;box-shadow:0 0 0 3px rgba(201,162,39,.12)}
.section-title .more{font-size:13px;color:var(--muted);font-weight:400;margin-left:auto}
.notice{margin:14px 16px;background:#fff8f0;border:1px solid #ffe7c7;color:#b76e00;border-radius:12px;padding:9px 12px;font-size:12px}

/* ==== 品牌故事全幅意境图 ==== */
.brand-story{position:relative;border-radius:var(--radius);overflow:hidden;color:#fff;margin:14px 16px;
  background:linear-gradient(180deg,rgba(18,12,8,.28),rgba(18,12,8,.82)),
             url('../img/origin-lake.png') center/cover no-repeat;background-color:#1c2a2e;padding:52px 24px;text-align:center}
.brand-story:before{content:"";position:absolute;top:14px;left:14px;right:14px;bottom:14px;border:1px solid rgba(201,162,39,.4);border-radius:12px;pointer-events:none}
.brand-story .bs-eyebrow{position:relative;font-size:12px;letter-spacing:4px;color:var(--gold-soft);font-weight:700}
.brand-story h3{position:relative;font-family:var(--serif);font-size:24px;margin:10px 0 8px;text-shadow:0 2px 12px rgba(0,0,0,.55)}
.brand-story p{position:relative;font-size:14px;opacity:.94;max-width:560px;margin:0 auto;text-shadow:0 1px 8px rgba(0,0,0,.5)}
.brand-story .btn{position:relative;width:auto;margin-top:18px;padding:11px 26px}

/* ==== 分类入口 ==== */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.cat-card{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid #f6efe8;border-radius:14px;padding:14px;box-shadow:var(--shadow-sm);transition:.2s}
.cat-card:active{transform:scale(.98)}
@media(hover:hover){.cat-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}}
.cat-card .ic{width:48px;height:48px;border-radius:14px;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;font-size:26px;flex-shrink:0}
.cat-card .ct{font-weight:700;font-size:15px;color:var(--ink)}
.cat-card .cs{font-size:12px;color:var(--muted)}

/* 旧版横向分类（兼容） */
.cats{display:flex;gap:12px;overflow-x:auto;padding:4px 16px 10px}
.cat{flex:0 0 auto;text-align:center;font-size:12px;color:#6b5f58}
.cat .ic{width:56px;height:56px;border-radius:18px;background:#fff;display:flex;align-items:center;justify-content:center;font-size:28px;box-shadow:var(--shadow-sm);margin-bottom:6px;border:1px solid #fbeee6;transition:.2s}
.cat:active .ic{transform:scale(.94)}

/* ==== 商品网格 ==== */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding:0 16px}
.prod{background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid #f6efe8;transition:.2s}
.prod:active{transform:translateY(-2px)}
@media(hover:hover){.prod:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:rgba(201,162,39,.55)}}
.prod .cover{aspect-ratio:1/1;object-fit:cover;background:#faf3ee;width:100%}
.prod .body{padding:10px 12px 12px}
.prod .name{font-size:13px;font-weight:700;color:var(--ink);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.prod .sub{font-size:11px;color:var(--muted);height:16px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.prod .row.between{margin-top:6px;align-items:flex-end}
.prod .buy{background:var(--grad);color:#fff;font-size:11px;font-weight:700;padding:4px 12px;border-radius:20px}

/* ==== 商品详情 ==== */
.product-detail{display:block}
.detail-hero{display:flex;gap:4px;overflow-x:auto;padding:14px 16px;background:#fff}
.detail-hero img{flex:0 0 auto;width:78%;max-width:320px;aspect-ratio:1/1;object-fit:cover;border-radius:12px;background:#faf3ee}
.detail-info h1{font-size:20px;margin:0 0 6px;line-height:1.35}
.detail-info .line{display:flex;align-items:baseline;gap:8px;margin:8px 0;flex-wrap:wrap}
.spec-list{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.spec{border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:13px;cursor:pointer;transition:.2s}
.spec.on{border-color:var(--primary);background:#fdeaec;color:var(--primary);font-weight:700}
@media(min-width:992px){
  .product-detail{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;max-width:1120px;margin:22px auto;padding:0 24px;align-items:start}
  .detail-hero{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:0;overflow:visible}
  .detail-hero img{width:100%;max-width:none}
  .detail-info.card{margin:0!important}
  .buy-box{position:sticky;top:84px}
}

/* ==== 表单 ==== */
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:#6b5f58;margin-bottom:6px;font-weight:600}
.field input,.field textarea,.field select{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;font-size:14px;background:#fff;transition:.2s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(200,16,46,.12)}
.field-row{display:flex;gap:8px;align-items:flex-end}
.seg{display:flex;gap:8px;background:#f3e9e4;padding:4px;border-radius:12px}
.seg-btn{flex:1;border:0;background:transparent;padding:10px;border-radius:9px;font-size:14px;font-weight:700;color:#9a8f88;cursor:pointer}
.seg-btn.on{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm)}

/* 登录/注册居中 */
.auth-wrap{max-width:420px;margin:0 auto}
.narrow{max-width:760px;margin-left:auto;margin-right:auto}

/* ==== 订单行 / 列表 ==== */
.order-item{display:flex;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
.order-item img{width:60px;height:60px;border-radius:10px;object-fit:cover;background:#faf3ee;flex-shrink:0}
.list{background:#fff;border-radius:var(--radius);margin:0 16px 14px;overflow:hidden;border:1px solid #f6efe8}
.list .item{padding:14px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:10px}
.list .item:last-child{border-bottom:0}
.steps{display:flex;justify-content:space-between;padding:14px;font-size:12px;color:var(--muted)}
.steps .on{color:var(--primary);font-weight:700}

/* ==== 底部结算栏（移动固定） ==== */
.checkout-bar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:var(--maxw);background:#fff;
  display:flex;align-items:center;justify-content:space-between;padding:10px 16px;box-shadow:0 -4px 20px rgba(0,0,0,.06);z-index:25}
.checkout-bar .total{font-weight:700}
@media(min-width:992px){.checkout-bar{max-width:760px;left:50%;border-radius:14px 14px 0 0;bottom:0}}

/* ==== 模态 / 支付选择 ==== */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:flex-end;z-index:50}
.modal.show{display:flex}
.sheet{background:#fff;width:100%;border-radius:18px 18px 0 0;padding:18px;max-height:80vh;overflow:auto}
.sheet h3{margin:0 0 12px}
.pay-method{display:flex;align-items:center;gap:12px;padding:14px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;cursor:pointer}
.pay-method.on{border-color:var(--primary);background:#fdeaec}
.pay-method .ic{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff}
.toast{position:fixed;top:40%;left:50%;transform:translate(-50%,-50%);background:rgba(0,0,0,.8);color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;z-index:99;display:none}
.fade{animation:fade .3s}
@keyframes fade{from{opacity:0}to{opacity:1}}

/* ==== 物流时间线 ==== */
.timeline{position:relative;padding-left:16px}
.tl-item{position:relative;padding:0 0 14px 14px;border-left:2px solid #f0ddca}
.tl-item:last-child{border-left-color:transparent}
.tl-dot{position:absolute;left:-7px;top:2px;width:10px;height:10px;border-radius:50%;background:var(--primary)}
.tl-time{font-size:12px;color:#b08968;font-weight:600}
.tl-text{font-size:13px;color:#4a4039;margin-top:2px}

/* ==== 评价 ==== */
.stars{cursor:pointer;font-size:24px;letter-spacing:4px;user-select:none}
.stars span{color:#ddd;transition:color .15s}
.review-img{width:72px;height:72px;border-radius:8px;object-fit:cover;margin:0 6px 6px 0}

/* ==== 文章卡片 ==== */
.article-card{display:block;padding:14px;border-bottom:1px solid var(--line)}
.article-card:last-child{border-bottom:0}
.article-card .t{font-weight:700;font-size:15px;color:var(--ink)}
.article-card .s{font-size:12px;color:var(--muted);margin-top:4px}
.article-card .cat{display:inline-block;font-size:11px;color:var(--gold);background:#fbf3df;padding:1px 8px;border-radius:10px;margin-right:6px;font-weight:600}

/* 旧文章列表容器（兼容） */
.list .article-card{margin:0 -14px}
/* 文章正文排版（吃蟹百科） */
.prose{line-height:1.85;color:#3a322c;font-size:15px}
.prose h2{font-size:18px;margin:20px 0 8px;padding-left:10px;border-left:4px solid #C9A227;color:#9e0b24}
.prose h3{font-size:16px;margin:16px 0 6px;color:#9e0b24}
.prose p{margin:0 0 12px}
.prose img{max-width:100%;border-radius:12px;margin:8px 0}
.prose strong{color:#9e0b24}
@media(min-width:992px){.prose{font-size:16px}.prose h2{font-size:20px}}

/* ==== 空状态 ==== */
.empty{padding:48px 14px;text-align:center;color:var(--muted)}
.empty .ic{font-size:46px;opacity:.5;display:block;margin-bottom:6px}
.empty .t{font-size:15px;margin:8px 0 4px;color:#6b5f58;font-weight:700}
.empty .s{font-size:13px}

/* ==== 间距工具 ==== */
.mt0{margin-top:0}.mt8{margin-top:8px}.mt12{margin-top:12px}.mt16{margin-top:16px}.mb0{margin-bottom:0}

/* ===== 全站页脚（多列官方） ===== */
.site-foot{background:#231a17;color:#cbbdb4;padding:40px 0 22px;margin-top:30px}
.footer-cols{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;padding:0 24px}
.footer-brand .fb-logo{font-size:20px;font-weight:800;color:#fff;display:flex;align-items:center;gap:8px}
.footer-brand p{font-size:13px;line-height:1.8;margin:12px 0 0}
.footer-brand .fb-contact{margin-top:12px;font-size:13px;line-height:2}
.footer-brand .fb-contact b{color:#fff;font-weight:700}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:12px}
.footer-col a{display:block;font-size:13px;color:#cbbdb4;padding:5px 0;transition:.2s}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding:16px 24px 0;text-align:center;font-size:12px;color:#8c8079;line-height:1.9}

/* ===== 移动端适配 ===== */
@media(max-width:991px){
  .nav-menu,.nav-search{display:none}
  .nav-toggle{display:block}
  .nav-cart span{display:none}
  .trust{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-cols{grid-template-columns:1fr 1fr;gap:22px}
  .hero{padding:42px 20px}
  .hero-t{font-size:25px}
  .hero:after{font-size:110px}
  /* 移动端底部 tabbar */
  .tabbar{position:fixed;bottom:0;left:0;right:0;width:100%;max-width:var(--maxw);margin:0 auto;background:#fff;
    display:flex;border-top:1px solid var(--line);z-index:30;box-shadow:0 -4px 20px rgba(0,0,0,.05)}
  .tabbar a{flex:1;text-align:center;padding:7px 0;font-size:11px;color:var(--muted)}
  .tabbar a.active{color:var(--primary)}
  .tabbar a .ic{font-size:20px;display:block;line-height:1;position:relative}
  .cart-badge{position:absolute;top:-4px;right:50%;margin-right:-26px;background:var(--primary);color:#fff;
    font-size:10px;font-weight:700;border-radius:10px;padding:0 5px;min-width:16px;height:16px;line-height:16px}
  .wrap{padding-bottom:64px}
}
@media(min-width:992px){
  .tabbar{display:none!important}
  .grid{grid-template-columns:repeat(4,1fr);gap:18px;padding:0}
  .section{padding:30px 24px 0}
  .cat-grid{grid-template-columns:repeat(4,1fr);gap:14px}
  .trust{grid-template-columns:repeat(4,1fr);padding:22px 24px}
  .list{max-width:1120px;margin-left:auto;margin-right:auto}
  .hero{min-height:460px}
  .hero-inner{padding:70px 24px}
  .hero-t{font-size:44px}
  .brand-story{margin:14px auto;max-width:1120px}
}
@media(max-width:480px){
  .footer-cols{grid-template-columns:1fr}
}

/* ============================================================
   企业采购 / 团购报价 弹窗
   ============================================================ */
.quote-mask{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:9999;display:none;align-items:flex-end;justify-content:center;animation:fadeIn .2s ease}
.quote-mask.show{display:flex}
.quote-mask .qm-box{background:#fff;width:100%;max-width:480px;border-radius:16px 16px 0 0;overflow:hidden;animation:slideUp .25s ease}
@media(min-width:768px){.quote-mask{align-items:center}.quote-mask .qm-box{border-radius:16px;max-width:440px}}
.quote-banner{position:relative;height:170px;background:linear-gradient(rgba(0,0,0,.45),rgba(0,0,0,.6)),url('img/hero-crab.png') center/cover no-repeat;display:flex;align-items:center;padding:20px 24px;color:#fff}
.quote-banner .qb-t{font-family:var(--serif);font-size:26px;font-weight:700;line-height:1.25;text-shadow:0 2px 8px rgba(0,0,0,.55);letter-spacing:1px}
.quote-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;background:rgba(0,0,0,.45);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:22px;line-height:1;transition:background .15s}
.quote-close:hover{background:rgba(0,0,0,.7)}
.quote-form{padding:18px 24px 24px}
.quote-form label{display:block;font-size:13px;color:var(--ink);margin:10px 0 6px;font-weight:600}
.quote-form label em{color:#e64340;margin-left:2px;font-style:normal}
.quote-form input,.quote-form textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;background:#fafafa;transition:all .15s;font-family:inherit}
.quote-form input:focus,.quote-form textarea:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(255,107,53,.1)}
.quote-form textarea{resize:vertical;min-height:60px}
.quote-prod{background:#fff5f0;border:1px solid #ffd9c7;border-radius:8px;padding:8px 12px;margin-top:6px;font-size:12px;color:var(--primary)}
.quote-prod strong{color:var(--ink);font-weight:600}
.quote-submit{width:100%;margin-top:18px;padding:14px;background:linear-gradient(135deg,#ff6b35,#f7931e);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:700;cursor:pointer;box-shadow:0 4px 12px rgba(255,107,53,.3);transition:all .15s}
.quote-submit:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(255,107,53,.4)}
.quote-submit:active{transform:translateY(0)}
.quote-submit:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.quote-hint{text-align:center;font-size:11px;color:#999;margin-top:10px}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{transform:translateY(40px);opacity:0}to{transform:translateY(0);opacity:1}}

/* 商品卡片内的"企业采购"小按钮 */
.quote-btn{display:inline-block;margin-top:8px;padding:5px 12px;background:linear-gradient(135deg,#ff6b35,#f7931e);color:#fff;border-radius:4px;font-size:11px;cursor:pointer;text-decoration:none;transition:all .15s;font-weight:600;box-shadow:0 2px 6px rgba(255,107,53,.25)}
.quote-btn:hover{filter:brightness(1.08);box-shadow:0 3px 10px rgba(255,107,53,.35)}
.prod .quote-btn{position:relative;z-index:2}
/* 详情页"获取报价"按钮（与加购按钮并列） */
.quote-btn-detail{display:block;width:100%;margin-top:10px;padding:13px;background:#fff;border:2px solid var(--primary);color:var(--primary);border-radius:var(--radius-sm);font-size:14px;font-weight:700;cursor:pointer;transition:all .15s;text-align:center}
.quote-btn-detail:hover{background:var(--primary);color:#fff}

/* ============================================================
   3.1 官方感增强：页面标题区 / 面包屑 / 动效 / 细节精致化
   追加区块，不改动既有规则，全站共享
   ============================================================ */

/* ===== 页面标题区（列表页顶部：大标题 + 副文案 + 金线） ===== */
.page-head{max-width:var(--maxw);margin:0 auto;padding:26px 24px 6px}
.page-head h1{font-family:var(--serif);font-size:26px;letter-spacing:2px;position:relative;padding-bottom:12px;display:inline-block}
.page-head h1:after{content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--primary))}
.page-head p{margin:10px 0 0;color:var(--muted);font-size:13px;max-width:640px}
@media(min-width:992px){.page-head{padding:34px 24px 10px}.page-head h1{font-size:30px}}

/* ===== 面包屑（官方站标配导航） ===== */
.crumb{max-width:var(--maxw);margin:0 auto;padding:14px 24px 0;font-size:12px;color:var(--muted);
  display:flex;align-items:center;flex-wrap:wrap;gap:4px}
.crumb a{color:var(--muted);transition:color .15s}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.45;margin:0 2px;user-select:none}
.crumb .cur{color:var(--ink);font-weight:600}
@media(max-width:760px){.crumb{padding:10px 16px 0}}

/* ===== 导航 active 下划线动画 ===== */
.nav-menu a{position:relative}
.nav-menu a:after{content:"";position:absolute;left:50%;right:50%;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--primary));transition:left .25s,right .25s}
.nav-menu a:hover:after,.nav-menu a.active:after{left:26%;right:26%}

/* ===== 商品卡片：封面 hover 缩放 + 价格区 ===== */
.prod{position:relative}
.prod .cover{transition:transform .45s ease,filter .45s ease}
@media(hover:hover){.prod:hover .cover{transform:scale(1.05);filter:brightness(1.03)}}
.prod .body{position:relative;z-index:1}
.prod .price{color:var(--primary)}
.prod .price .num{font-size:18px}

/* 商品卡片「更多」链接 hover 位移 */
.section-title .more,.more{transition:color .2s}
.section-title .more:hover,.more:hover{color:var(--primary)}

/* ===== 回到顶部 ===== */
#backTop{position:fixed;right:22px;bottom:92px;width:42px;height:42px;border-radius:50%;
  background:rgba(200,16,46,.92);color:#fff;border:0;font-size:18px;cursor:pointer;z-index:40;
  box-shadow:0 6px 18px rgba(200,16,46,.35);opacity:0;transform:translateY(12px);
  transition:opacity .3s,transform .3s;display:flex;align-items:center;justify-content:center}
#backTop.show{opacity:1;transform:translateY(0)}
#backTop:hover{background:var(--primary-dark)}
@media(max-width:991px){#backTop{right:14px;bottom:74px}}

/* ===== 滚动条 / 选中态 / 焦点（精致化细节） ===== */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#d9a86a,#c8102e);border-radius:5px}
::-webkit-scrollbar-track{background:#f6f1eb}
::selection{background:rgba(201,162,39,.32);color:var(--ink)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

/* ===== 图片加载渐入 ===== */
img{background:#faf3ee}
@keyframes imgIn{from{opacity:0;transform:scale(.985)}to{opacity:1;transform:scale(1)}}
img.lazy-load{animation:imgIn .5s ease}

/* ===== 移动端 tabbar 图标动效 ===== */
.tabbar a .ic{transition:transform .2s}
.tabbar a.active .ic{transform:translateY(-2px) scale(1.08)}

/* ===== Toast 动效（底部滑入） ===== */
.toast{animation:toastIn .28s cubic-bezier(.2,.9,.3,1.2)}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,-46%)}to{opacity:1;transform:translate(-50%,-50%)}}

/* ===== 按钮 hover 微上浮（官方感交互反馈） ===== */
.btn,.nav-user,.quote-submit{transition:transform .18s,box-shadow .18s,filter .18s,background .18s}
@media(hover:hover){.btn:not(:disabled):hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(200,16,46,.28)}}

/* ===== 表单/卡片焦点聚光 ===== */
.card{transition:box-shadow .25s,transform .25s,border-color .25s}

/* ===== 空状态升级 ===== */
.empty .ic{animation:floatY 2.6s ease-in-out infinite}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* ===== 骨架屏（商品网格加载中） ===== */
.skeleton{background:linear-gradient(90deg,#f3ede7 25%,#faf6f1 37%,#f3ede7 63%);
  background-size:400% 100%;animation:shimmer 1.4s ease infinite;border-radius:var(--radius-sm)}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}

/* ===== 页脚资质信任行（支付/物流图标） ===== */
.footer-trust{max-width:var(--maxw);margin:24px auto 0;padding:0 24px;display:flex;flex-wrap:wrap;
  gap:10px 18px;justify-content:center;font-size:12px;color:#9a8d84}
.footer-trust span{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);border-radius:20px}
@media(max-width:480px){.footer-trust{gap:8px}.footer-trust span{padding:4px 10px}}

/* ============================================================
   3.2 移动端深色模式/页脚显示修复
   ============================================================ */
:root{color-scheme:light only}
html{-webkit-color-scheme:light;color-scheme:light}

/* 3.4 移动端 footer 改横排紧凑布局：
   footer-brand 单独居中一行；3 个 col 各自一行，标题在左、链接横排在右（更自然、更官方） */
@media(max-width:991px){
  .footer-cols{display:flex;flex-direction:column;gap:14px;padding:0 20px}
  .footer-brand{text-align:center;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:18px;margin-bottom:6px}
  .footer-brand .fb-logo{justify-content:center}
  .footer-brand p,.footer-brand .fb-contact{text-align:center}
  .footer-col{display:flex;flex-wrap:wrap;align-items:flex-start;gap:8px 16px;line-height:1.6;padding:4px 0}
  .footer-col h4{flex:0 0 auto;min-width:5em;font-size:13px;margin:2px 0 0;letter-spacing:1px}
  .footer-col a{display:inline-block;padding:2px 0;white-space:nowrap;margin-right:0}
  .footer-bottom{padding:16px 20px 80px}
  .site-foot{padding-bottom:8px}
}
@media(max-width:480px){
  .footer-col h4{flex:0 0 100%;margin-bottom:2px;color:#d9a86a}
  .footer-col a{margin-right:10px;font-size:12px}
}

/* ============================================================
   3.3 联系我们区块样式
   ============================================================ */
.cnt-block{margin:8px 0;line-height:2.2}
.cnt-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:6px 0;font-size:15px;color:var(--ink)}
.cnt-row b{font-weight:700;color:var(--ink)}
.cnt-tel{color:var(--primary);font-weight:700;text-decoration:none;border-bottom:1px dashed rgba(200,16,46,.4);padding-bottom:1px;transition:.2s}
.cnt-tel:hover{background:rgba(200,16,46,.08);border-radius:3px;border-bottom-style:solid}
.cnt-wx{cursor:pointer;color:var(--primary);font-weight:700;border-bottom:1px dashed rgba(200,16,46,.4);padding:2px 4px;transition:.2s;user-select:none}
.cnt-wx:hover{background:rgba(200,16,46,.08);border-radius:4px;border-bottom-style:solid;transform:translateY(-1px)}
.cnt-wx:active{transform:translateY(0)}
.cnt-btn{display:inline-flex;align-items:center;gap:4px;padding:5px 12px;background:var(--grad);color:#fff!important;border-radius:18px;font-size:12px;font-weight:700;text-decoration:none;cursor:pointer;transition:.2s;box-shadow:0 4px 10px rgba(200,16,46,.2);border:0!important}
.cnt-btn:hover{transform:translateY(-1px);box-shadow:0 6px 14px rgba(200,16,46,.3);filter:brightness(1.05)}
.cnt-btn.copy{cursor:pointer}
@media(max-width:760px){.cnt-row{font-size:14px;line-height:2.4}.cnt-btn{padding:4px 10px;font-size:11px}}

/* ============================================================
   3.7 首页 banner 多图轮播
   ============================================================ */
.cw-carousel{position:relative;overflow:hidden;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm);border:1px solid #f6efe8}
.cw-carousel{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:0;padding-bottom:0;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.cw-carousel::-webkit-scrollbar{display:none}
.cw-slide{flex:0 0 100%;scroll-snap-align:start;position:relative;display:block}
.cw-slide img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.cw-dots{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);display:flex;gap:6px;z-index:2;background:rgba(0,0,0,.18);padding:5px 10px;border-radius:14px;backdrop-filter:blur(6px)}
.cw-dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.55);cursor:pointer;transition:.2s}
.cw-dot.on{background:#fff;width:18px;border-radius:4px}
@media(max-width:480px){.cw-slide img{aspect-ratio:5/4}}

/* 4.4 footer 联系方式行内间距优化 */
.fb-contact .cnt-line{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:10px 0;line-height:2}
.fb-contact .cnt-line b{flex:0 1 auto;min-width:0}
.fb-contact .cnt-line .cnt-btn{margin-left:6px;flex-shrink:0}
.fb-contact .cnt-line .cnt-tel,.fb-contact .cnt-line .cnt-wx{padding:2px 4px;border-radius:4px}
.fb-contact .cnt-line .cnt-tel:hover,.fb-contact .cnt-line .cnt-wx:hover{background:rgba(255,255,255,.06)}
@media(max-width:480px){
  .fb-contact .cnt-line{gap:10px;margin:12px 0}
  .fb-contact .cnt-line .cnt-btn{padding:4px 10px;font-size:11px}
}