/* ===== 日本网购独立站 前台样式（参考 shop.fex-crypt.com 电商风格）===== */
:root{
  --primary:#c0392b;
  --primary-dark:#a93226;
  --text:#222;
  --muted:#888;
  --bg:#f5f5f5;
  --card:#fff;
  --border:#e5e5e5;
  --ok:#2e7d32;
  --danger:#c0392b;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Helvetica Neue","Hiragino Kaku Gothic ProN","Meiryo",sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
a{color:var(--primary);text-decoration:none}
a:hover{opacity:.85}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.center{display:block;text-align:center}

/* 顶部栏（两行式：上行 Logo+用户区，下行分类导航） */
.topbar{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.top-row{display:flex;align-items:center;justify-content:space-between;min-height:58px}
.logo{font-size:22px;font-weight:800;color:var(--primary)}
.logo-img{height:46px;width:auto;display:inline-block;vertical-align:middle;border-radius:8px}
.nav-user{display:flex;gap:16px;white-space:nowrap}
.nav{display:flex;gap:20px;flex-wrap:wrap;padding:10px 0;border-top:1px solid var(--border)}
.nav a{color:#333;font-size:15px}

/* 轮播 */
.carousel{position:relative;overflow:hidden;border-radius:10px;margin:18px 0;background:#ddd}
.carousel-track{display:flex;transition:transform .5s ease}
.slide{min-width:100%;position:relative;height:400px}
.slide img{width:100%;height:100%;object-fit:cover;display:block}
.slide-caption{position:absolute;left:8%;top:50%;transform:translateY(-50%);color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.5);max-width:460px}
.slide-caption h2{font-size:34px;margin-bottom:8px}
.slide-caption p{font-size:17px;margin-bottom:16px}
.car-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.35);color:#fff;border:none;width:44px;height:44px;font-size:26px;cursor:pointer;border-radius:50%;z-index:5}
.car-btn.prev{left:14px}.car-btn.next{right:14px}
.car-dots{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:5}
.dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.6);cursor:pointer}
.dot.active{background:#fff}

/* 搜索 */
.searchbar{margin:16px 0;display:flex}
.searchbar form{display:flex;flex:1;gap:8px}
.searchbar input{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:6px}

/* 区块标题 */
.section-title{font-size:24px;margin:26px 0 16px;border-left:4px solid var(--primary);padding-left:10px}
.empty{color:var(--muted);padding:24px 0;text-align:center}

/* 首页分类分组 */
.cat-block{margin:34px 0}
.cat-block-head{display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid var(--primary);padding-bottom:8px;margin-bottom:16px}
.cat-block-head h2{font-size:22px;color:var(--primary)}
.cat-more{color:#555;font-size:14px;white-space:nowrap}
.cat-more:hover{color:var(--primary)}

/* 商品网格 */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;overflow:hidden;color:var(--text);transition:transform .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 6px 16px rgba(0,0,0,.08)}
.card-img{position:relative;height:200px;background:#eee;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover}
.noimg{display:flex;align-items:center;justify-content:center;height:100%;color:var(--muted)}
.badge{position:absolute;top:10px;left:10px;background:var(--primary);color:#fff;font-size:13px;padding:3px 8px;border-radius:20px}
.badge-default{background:var(--ok)}
.badge-status{background:#1565c0}
.card-body{padding:12px}
.card-name{font-size:15px;min-height:40px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-price{display:flex;align-items:baseline;gap:8px;margin-top:6px}
.price{color:var(--primary);font-weight:800;font-size:18px}
.price.big{font-size:26px}
.old{color:var(--muted);font-size:14px}
.old.big{font-size:16px}
.card-stock{color:var(--muted);font-size:12px;margin-top:4px}
.soldout{color:var(--danger);font-weight:700}

/* 商品详情 */
.breadcrumb{font-size:14px;margin:16px 0;color:var(--muted)}
.detail{display:flex;gap:32px;background:#fff;border:1px solid var(--border);border-radius:10px;padding:24px}
.detail-img{flex:1;max-width:480px;background:#eee;border-radius:8px;overflow:hidden}
.detail-img img{width:100%}
.detail-info{flex:1}
.detail-info h1{font-size:26px;margin-bottom:12px}
.detail-price{margin:12px 0}
.desc{color:#444;margin:14px 0}
.desc-wrap .desc.collapsed{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:4px}
.desc-wrap .desc.expanded{display:block}
.desc-toggle{background:none;border:none;color:var(--primary);cursor:pointer;font-size:14px;padding:0;text-decoration:underline}
.buyform{display:flex;align-items:center;gap:12px;margin-top:16px;flex-wrap:wrap}
select,input,textarea{font-family:inherit;font-size:15px;padding:8px;border:1px solid var(--border);border-radius:6px}
label{display:block;margin:10px 0 4px;font-size:14px}

/* 商品详情轮播图 */
.c-slider{position:relative;overflow:hidden;background:#fff}
.c-viewport{overflow:hidden}
.c-track{display:flex;transition:transform .5s ease}
.c-slide{min-width:100%;display:flex;align-items:center;justify-content:center;background:#f7f7f7}
.c-slide img{width:100%;aspect-ratio:1/1;object-fit:cover;max-height:520px}
.c-prev,.c-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.35);color:#fff;border:none;width:38px;height:38px;font-size:22px;cursor:pointer;border-radius:50%;z-index:5}
.c-prev{left:10px}.c-next{right:10px}
.c-dots{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);display:flex;gap:7px;z-index:5}
.c-dots .dot{background:rgba(255,255,255,.6)}
.c-dots .dot.active{background:var(--primary)}
.buy-total{margin:12px 0;font-size:17px}
.buy-total strong{color:var(--primary);font-size:20px}

/* 按钮 */
.btn{display:inline-block;padding:9px 18px;border:none;border-radius:6px;background:#eee;color:#333;cursor:pointer;font-size:15px;text-decoration:none}
.btn:hover{opacity:.9}
.btn-primary{background:var(--primary);color:#fff}
.btn-success{background:var(--ok);color:#fff}
.btn-danger{background:var(--danger);color:#fff}
.btn-light{background:#fff;color:#333;font-weight:700}
.btn-caro{position:absolute;top:40%;right:8%;z-index:6;background:#e60012;color:#000;font-weight:800;padding:13px 30px;border-radius:6px;font-size:17px;text-decoration:none;box-shadow:0 4px 14px rgba(0,0,0,.3);white-space:nowrap}
.btn-caro:hover{background:#d5000f}
.btn-sm{padding:5px 12px;font-size:13px}
.btn-lg{padding:13px 34px;font-size:17px}
.btn-block{width:100%;text-align:center;margin-top:8px}

/* 弹窗 */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;z-index:100}
.modal-box{background:#fff;border-radius:12px;padding:24px;max-width:420px;width:90%;text-align:center}
.modal-img{border-radius:8px;margin-bottom:12px}
.modal-title{font-size:20px;margin:8px 0}
.modal-text{color:#444;margin-bottom:16px}
.modal-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:8px}
.modal-actions .btn-lg{min-width:200px}
.btn-plain{background:transparent;color:#888;border:1px solid #ddd;border-radius:6px;padding:12px 20px;cursor:pointer}

/* 免费领取 */
.gift-box{display:flex;gap:16px;align-items:flex-start;text-align:left}
.gift-img{width:120px;height:120px;object-fit:cover;border-radius:10px;flex:none}
.gift-name{font-size:20px;font-weight:700;margin-bottom:6px}
.gift-text{color:#555;margin-bottom:6px}
.gift-free{color:var(--danger);font-size:15px;margin:0}

/* 认证 */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#fff,#f0f0f0)}
.auth-box{background:#fff;border:1px solid var(--border);border-radius:12px;padding:34px;width:380px;box-shadow:0 10px 30px rgba(0,0,0,.08)}
.auth-box h1{font-size:22px;margin-bottom:16px;text-align:center}
.auth-switch{margin-top:14px;text-align:center;font-size:14px}

/* 提示 */
.alert{padding:10px 14px;border-radius:6px;margin:10px 0;font-size:14px}
.alert-error{background:#fdecea;color:var(--danger);border:1px solid #f5c6cb}
.alert-ok{background:#e8f5e9;color:var(--ok);border:1px solid #c8e6c9}

/* 表格 */
.tbl{width:100%;border-collapse:collapse;background:#fff;font-size:14px}
.tbl th,.tbl td{border:1px solid var(--border);padding:8px 10px;text-align:left;vertical-align:middle}
.tbl th{background:#fafafa}
.thumb{width:50px;height:50px;object-fit:cover;border-radius:6px;display:inline-block;vertical-align:middle;margin-right:6px}

/* 卡片 */
.card-plain{background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:18px}
.card-plain h3{margin-bottom:12px;font-size:18px}
.muted{color:var(--muted);font-size:13px;margin:4px 0}

/* 地址 */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.addr-item{border:1px solid var(--border);border-radius:8px;padding:12px;margin-bottom:10px;background:#fff}
.addr-actions{display:flex;gap:12px;margin-top:8px;font-size:13px}
.addr-actions a{color:var(--primary)}

/* 订单 */
.order-list .order-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px;margin-bottom:12px}
.order-head{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.order-no{font-weight:700}
.order-date{color:var(--muted);font-size:13px}
.order-meta{color:#555;margin-bottom:10px;font-size:14px}

/* 时间线 */
.timeline{margin-top:8px}
.timeline-item{border-left:3px solid #ccc;padding:0 0 16px 16px;position:relative;margin-left:8px}
.timeline-item:before{content:"";position:absolute;left:-7px;top:2px;width:11px;height:11px;border-radius:50%;background:#ccc}
.timeline-item.current:before{background:var(--primary)}
.timeline-item.current{border-left-color:var(--primary)}
.tl-time{color:var(--muted);font-size:12px}
.tl-status{font-weight:700}
.tl-note{color:#555;font-size:14px}

/* 购物车 */
.cart-total{margin-top:16px;font-size:18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.radio-line{display:flex;gap:8px;align-items:flex-start;padding:8px 0}
.success-box{text-align:center;background:#fff;border:1px solid var(--border);border-radius:12px;padding:50px 20px;margin-top:40px}
.success-box h1{color:var(--ok);margin-bottom:12px}

/* 会员中心 */
.mypage-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.menu-list{list-style:none}
.menu-list li{margin:10px 0}
.menu-link{display:block;padding:12px;background:#fafafa;border:1px solid var(--border);border-radius:8px;color:#333}
.menu-link:hover{border-color:var(--primary);color:var(--primary)}

/* 分页 */
.pagination{display:flex;align-items:center;justify-content:center;gap:16px;margin:28px 0}
.pg-btn{padding:9px 18px;background:var(--card);border:1px solid var(--border);border-radius:6px;color:var(--text)}
.pg-btn:hover{border-color:var(--primary);color:var(--primary)}
.pg-info{color:var(--muted);font-size:14px}

/* 页脚 */
.footer{background:#222;color:#ccc;margin-top:40px;padding:24px 0;text-align:center;font-size:14px}.footer a{color:#bbb}
.footer-links{margin-top:6px}

@media(max-width:768px){
  .two-col,.mypage-grid{grid-template-columns:1fr}
  .detail{flex-direction:column}
  .nav-user{gap:8px;font-size:13px}
  .slide{height:180px}
  .btn-caro{top:auto;bottom:14px;right:50%;transform:translateX(50%);font-size:14px;padding:10px 22px}
}