/* ==================== 全局变量 · 暗夜奢感 ==================== */
:root {
  --primary: #f472b6;
  --primary-dark: #ec4899;
  --primary-light: #f9a8d4;
  --secondary: #1e1b4b;
  --accent: #d4a76a;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --info: #60a5fa;
  --bg: #0e0b1a;
  --bg-card: #1a1730;
  --bg-elevated: #211e38;
  --text: #eae6f2;
  --text-light: #9b94b0;
  --text-lighter: #6b6480;
  --border: rgba(255,255,255,.07);
  --shadow: 0 4px 24px rgba(0,0,0,.35);
  --shadow-lg: 0 12px 48px rgba(0,0,0,.45);
  --glow: 0 0 20px rgba(244,114,182,.18);
  --glass: rgba(255,255,255,.04);
  --glass-border: rgba(255,255,255,.08);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --navbar-h: 56px;
  --tabbar-h: 60px;
  --max-w: 768px;
  --transition: .25s ease;
  --gradient-primary: linear-gradient(135deg,#ec4899,#a855f7);
  --gradient-accent: linear-gradient(135deg,#d4a76a,#c88e4a);
  --gradient-card: linear-gradient(145deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
}

/* ==================== 重置 ==================== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-tap-highlight-color:transparent}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;border:none;outline:none;background:none;color:var(--text)}
ul,ol{list-style:none}

/* ==================== 工具类 ==================== */
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 16px}
.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}.justify-around{justify-content:space-around}
.flex-1{flex:1}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.text-center{text-align:center}.text-right{text-align:right}
.text-primary{color:var(--primary)}.text-light{color:var(--text-light)}.text-accent{color:var(--accent)}.text-success{color:var(--success)}
.text-sm{font-size:12px}.text-base{font-size:14px}.text-lg{font-size:16px}.text-xl{font-size:20px}.text-2xl{font-size:24px}
.font-bold{font-weight:700}.font-medium{font-weight:500}
.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}
.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}
.p-8{padding:8px}.p-12{padding:12px}.p-16{padding:16px}
.hidden{display:none!important}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.line-clamp-2{display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ==================== 导航栏 ==================== */
.navbar{position:fixed;top:0;left:0;right:0;height:var(--navbar-h);background:rgba(14,11,26,.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);display:flex;align-items:center;padding:0 16px;z-index:100;border-bottom:1px solid var(--glass-border)}
.navbar .back{width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:20px;cursor:pointer;border-radius:50%;transition:var(--transition);color:var(--text)}
.navbar .back:hover{background:var(--glass)}
.navbar .title{flex:1;text-align:center;font-size:17px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}
.navbar .action{width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;color:var(--text)}
.page-body{padding-top:calc(var(--navbar-h) + 12px);padding-bottom:calc(var(--tabbar-h) + 20px);min-height:100vh}
.page-body.no-tabbar{padding-bottom:20px}

/* ==================== 底部Tab栏 ==================== */
.tabbar{position:fixed;bottom:0;left:0;right:0;height:var(--tabbar-h);background:rgba(14,11,26,.9);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);display:flex;align-items:center;justify-content:space-around;border-top:1px solid var(--glass-border);z-index:100;padding-bottom:env(safe-area-inset-bottom)}
.tabbar .tab-item{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;color:var(--text-lighter);cursor:pointer;transition:var(--transition);position:relative;padding:4px 12px}
.tabbar .tab-item .tab-icon{font-size:22px;line-height:1}
.tabbar .tab-item.active{color:var(--primary)}
.tabbar .tab-item .badge{position:absolute;top:0;right:2px;min-width:16px;height:16px;background:var(--primary);color:#fff;font-size:10px;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:0 4px}

/* ==================== 按钮 ==================== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;transition:var(--transition);white-space:nowrap;user-select:none}
.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 30px rgba(244,114,182,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border:1.5px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-accent{background:var(--gradient-accent);color:#fff;box-shadow:0 4px 15px rgba(212,167,106,.25)}
.btn-success{background:var(--success);color:#fff}
.btn-block{display:flex;width:100%}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-lg{padding:14px 32px;font-size:17px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none!important}

/* ==================== 卡片 ==================== */
.card{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card-body{padding:16px}

/* ==================== 表单 ==================== */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-light);margin-bottom:6px}
.form-input{width:100%;height:48px;padding:0 16px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:15px;transition:var(--transition);background:var(--bg-elevated);color:var(--text)}
.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(244,114,182,.15)}
textarea.form-input{height:auto;padding:12px 16px;resize:vertical;min-height:100px}
.form-input::placeholder{color:var(--text-lighter)}

/* ==================== 商品卡片 ==================== */
.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding:0 16px}
.product-card{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);cursor:pointer}
.product-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:rgba(244,114,182,.2)}
.product-card .img-wrap{position:relative;width:100%;padding-bottom:100%;background:var(--bg-elevated);overflow:hidden}
.product-card .img-wrap img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.product-card:hover .img-wrap img{transform:scale(1.05)}
.product-card .img-wrap .tag{position:absolute;top:8px;left:8px;padding:2px 8px;background:var(--gradient-primary);color:#fff;font-size:11px;border-radius:999px}
.product-card .info{padding:10px 12px}
.product-card .info .name{font-size:13px;line-height:1.4;height:36px;display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text)}
.product-card .info .price-row{display:flex;align-items:baseline;gap:6px;margin-top:6px}
.product-card .info .price{color:var(--primary);font-size:17px;font-weight:700}
.product-card .info .price::before{content:'¥';font-size:12px}
.product-card .info .old-price{color:var(--text-lighter);font-size:12px;text-decoration:line-through}
.product-card .info .sold{font-size:11px;color:var(--text-lighter);margin-top:4px}

/* ==================== 搜索栏 ==================== */
.search-bar{display:flex;align-items:center;gap:8px;margin:0 16px 12px;padding:0 12px;height:40px;background:var(--bg-elevated);border:1px solid var(--glass-border);border-radius:999px}
.search-bar input{flex:1;background:none;font-size:14px;color:var(--text)}
.search-bar .icon{color:var(--text-lighter);font-size:18px}

/* ==================== 轮播 ==================== */
.swiper{position:relative;overflow:hidden;border-radius:var(--radius);margin:0 16px 16px}
.swiper-track{display:flex;transition:transform .4s ease}
.swiper-slide{min-width:100%;height:clamp(120px,24vw,220px);background:var(--bg-elevated);border-radius:var(--radius);overflow:hidden}
.swiper-slide img{width:100%;height:100%;object-fit:cover}
.swiper-dots{position:absolute;bottom:8px;left:50%;transform:translateX(-50%);display:flex;gap:6px}
.swiper-dots .dot{width:6px;height:6px;border-radius:3px;background:rgba(255,255,255,.3);transition:var(--transition)}
.swiper-dots .dot.active{width:16px;background:var(--primary)}

/* ==================== 分类 ==================== */
.cate-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px 0;padding:12px 16px}
.cate-item{display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer}
.cate-item .icon-circle{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;background:var(--bg-elevated);border:1px solid var(--glass-border);color:var(--primary);transition:var(--transition)}
.cate-item:hover .icon-circle{transform:scale(1.1);box-shadow:var(--glow)}
.cate-item span{font-size:12px;color:var(--text-light)}

/* ==================== 订单状态 ==================== */
.order-card{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);margin:0 16px 12px;box-shadow:var(--shadow);overflow:hidden}
.order-card .order-head{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border)}
.order-card .order-head .order-no{font-size:13px;color:var(--text-light)}
.order-card .order-head .status{font-size:13px;color:var(--primary);font-weight:600}
.order-card .order-item{display:flex;gap:12px;padding:12px 16px}
.order-card .order-item .thumb{width:80px;height:80px;border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-elevated);flex-shrink:0}
.order-card .order-item .thumb img{width:100%;height:100%;object-fit:cover}
.order-card .order-item .detail{flex:1;display:flex;flex-direction:column;justify-content:space-between}
.order-card .order-foot{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-top:1px solid var(--border)}

/* ==================== 后台 ==================== */
.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{width:240px;background:#110e22;color:#fff;position:fixed;top:0;left:0;bottom:0;overflow-y:auto;z-index:200;transition:var(--transition);border-right:1px solid var(--glass-border)}
.admin-sidebar .logo{padding:20px;font-size:20px;font-weight:700;border-bottom:1px solid var(--glass-border);text-align:center;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.admin-sidebar .menu-item{display:flex;align-items:center;gap:10px;padding:12px 20px;font-size:14px;cursor:pointer;transition:var(--transition);color:var(--text-light)}
.admin-sidebar .menu-item:hover,.admin-sidebar .menu-item.active{background:rgba(244,114,182,.08);color:var(--primary)}
.admin-sidebar .menu-item.active{border-left:3px solid var(--primary)}
.admin-main{flex:1;margin-left:240px;padding:20px;background:var(--bg)}
.admin-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:20px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:20px}
.stat-card{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.stat-card .label{font-size:13px;color:var(--text-light)}
.stat-card .value{font-size:28px;font-weight:700;margin-top:4px}
.stat-card .change{font-size:12px;margin-top:4px;color:var(--success)}
.admin-table{width:100%;background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.admin-table table{width:100%;border-collapse:collapse}
.admin-table th,.admin-table td{padding:12px 16px;text-align:left;font-size:14px;border-bottom:1px solid var(--border);color:var(--text)}
.admin-table th{background:var(--bg-elevated);font-weight:600;color:var(--text-light);font-size:13px}
.admin-table tr:hover td{background:rgba(244,114,182,.04)}

/* ==================== 聊天 ==================== */
.chat-container{display:flex;flex-direction:column;height:calc(100vh - var(--navbar-h));margin-top:var(--navbar-h)}
.chat-messages{flex:1;overflow-y:auto;padding:16px}
.chat-bubble{max-width:75%;margin-bottom:12px;display:flex;gap:8px}
.chat-bubble.self{flex-direction:row-reverse;margin-left:auto}
.chat-bubble .avatar{width:36px;height:36px;border-radius:50%;background:var(--border);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:14px}
.chat-bubble.self .avatar{background:var(--primary);color:#fff}
.chat-bubble .msg{padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.5;word-break:break-all}
.chat-bubble .msg{background:var(--bg-elevated);border-top-left-radius:4px;color:var(--text)}
.chat-bubble.self .msg{background:var(--gradient-primary);color:#fff;border-top-left-radius:16px;border-top-right-radius:4px}
.chat-input-bar{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--bg-card);border-top:1px solid var(--glass-border)}
.chat-input-bar input{flex:1;height:40px;padding:0 12px;background:var(--bg-elevated);border:1px solid var(--glass-border);border-radius:20px;font-size:14px;color:var(--text)}
.chat-input-bar .send-btn{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;transition:var(--transition)}
.chat-input-bar .send-btn:hover{background:var(--primary-dark)}
.chat-input-bar .extra-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:var(--text-light);cursor:pointer;font-size:20px}

/* ==================== 直播 ==================== */
.live-player{position:relative;width:100%;aspect-ratio:9/16;background:#000;overflow:hidden}
.live-player .overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:16px;background:linear-gradient(to bottom,rgba(0,0,0,.3) 0%,transparent 30%,transparent 70%,rgba(0,0,0,.5) 100%)}
.live-info{display:flex;align-items:center;gap:8px;color:#fff;font-size:13px}
.live-info .host-avatar{width:36px;height:36px;border-radius:50%;background:#666}
.live-comment-list{position:absolute;bottom:80px;left:16px;right:80px;max-height:200px;overflow-y:auto;display:flex;flex-direction:column;gap:4px}
.live-comment{padding:4px 10px;background:rgba(0,0,0,.4);border-radius:12px;color:#fff;font-size:13px;display:inline-block;width:fit-content}
.live-goods{position:absolute;bottom:80px;right:16px;width:60px;height:60px;background:rgba(255,71,87,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;cursor:pointer;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{transform:scale(1)} 50%{transform:scale(1.1)}}

/* ==================== 会员/代理 ==================== */
.member-card{margin:0 16px;padding:20px;border-radius:var(--radius);background:linear-gradient(135deg,#1a1730,#2d1f4e);color:#fff;position:relative;overflow:hidden;border:1px solid var(--glass-border)}
.member-card::after{content:'';position:absolute;top:-30px;right:-30px;width:120px;height:120px;background:rgba(244,114,182,.06);border-radius:50%}
.member-card .level{font-size:12px;background:var(--gradient-accent);padding:2px 10px;border-radius:10px;display:inline-block;margin-bottom:8px}
.member-card .name{font-size:18px;font-weight:700}
.member-card .id{font-size:12px;opacity:.7;margin-top:2px}
.member-card .stats{display:flex;gap:24px;margin-top:16px}
.member-card .stats .stat{display:flex;flex-direction:column;align-items:center}
.member-card .stats .stat .num{font-size:20px;font-weight:700}
.member-card .stats .stat .lbl{font-size:11px;opacity:.7}

/* ==================== 列表项 ==================== */
.list-group{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);margin:0 16px 12px;box-shadow:var(--shadow);overflow:hidden}
.list-item{display:flex;align-items:center;padding:14px 16px;gap:12px;cursor:pointer;transition:var(--transition);border-bottom:1px solid var(--border)}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:rgba(244,114,182,.04)}
.li-item .li-icon{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.list-item .li-icon{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.list-item .li-text{flex:1}
.list-item .li-text .li-title{font-size:14px;font-weight:500}
.list-item .li-text .li-desc{font-size:12px;color:var(--text-light);margin-top:2px}
.list-item .li-arrow{color:var(--text-lighter);font-size:14px}
.list-item .li-value{font-size:14px;color:var(--text-light)}

/* ==================== 标签 ==================== */
.tag{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:500}
.tag-red{background:rgba(244,114,182,.12);color:var(--primary)}
.tag-green{background:rgba(52,211,153,.12);color:var(--success)}
.tag-orange{background:rgba(212,167,106,.12);color:var(--accent)}
.tag-blue{background:rgba(96,165,250,.12);color:var(--info)}

/* ==================== 弹窗 ==================== */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:500;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:var(--transition)}
.modal-mask.show{opacity:1;pointer-events:auto}
.modal-box{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);width:90%;max-width:400px;padding:24px;transform:translateY(20px);transition:var(--transition);color:var(--text)}
.modal-mask.show .modal-box{transform:translateY(0)}
.modal-box .modal-title{font-size:17px;font-weight:700;margin-bottom:12px}

/* ==================== Toast ==================== */
.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.8);background:rgba(26,23,48,.92);backdrop-filter:blur(12px);color:#fff;padding:12px 24px;border-radius:var(--radius-sm);font-size:14px;z-index:9999;opacity:0;transition:.3s;pointer-events:none;border:1px solid var(--glass-border)}
.toast.show{opacity:1;transform:translate(-50%,-50%) scale(1)}

/* ==================== 优惠券 ==================== */
.coupon-card{display:flex;margin:0 16px 12px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:var(--bg-card);border:1px solid var(--glass-border)}
.coupon-card .coupon-left{width:110px;background:var(--gradient-primary);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:16px 8px;position:relative}
.coupon-card .coupon-left::after{content:'';position:absolute;right:-6px;top:50%;width:12px;height:12px;background:var(--bg);border-radius:50%;transform:translateY(-50%)}
.coupon-card .coupon-left .amount{font-size:28px;font-weight:700}
.coupon-card .coupon-left .amount::before{content:'¥';font-size:14px}
.coupon-card .coupon-left .condition{font-size:11px;opacity:.8}
.coupon-card .coupon-right{flex:1;padding:14px 16px;display:flex;flex-direction:column;justify-content:center}
.coupon-card .coupon-right .coupon-name{font-size:15px;font-weight:600}
.coupon-card .coupon-right .coupon-time{font-size:12px;color:var(--text-light);margin-top:4px}
.coupon-card .coupon-btn{align-self:center;margin-left:auto;padding:6px 14px;border:1.5px solid var(--primary);color:var(--primary);border-radius:20px;font-size:12px;cursor:pointer;white-space:nowrap;flex-shrink:0;transition:var(--transition)}
.coupon-card .coupon-btn:hover{background:var(--primary);color:#fff}
.coupon-card .coupon-btn.used{border-color:var(--text-lighter);color:var(--text-lighter);cursor:default}

/* ==================== 签到 ==================== */
.sign-calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;padding:16px}
.sign-day{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-size:13px;cursor:pointer;transition:var(--transition);background:var(--bg-elevated)}
.sign-day.signed{background:var(--gradient-primary);color:#fff}
.sign-day.today{border:2px solid var(--primary)}
.sign-day .sign-icon{font-size:16px}

/* ==================== 分销树 ==================== */
.team-tree .tree-level{padding-left:20px;border-left:2px solid var(--border);margin-left:16px}
.tree-user{display:flex;align-items:center;gap:10px;padding:10px 0}
.tree-user .tree-avatar{width:36px;height:36px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:14px}
.tree-user .tree-name{font-size:14px;font-weight:500}
.tree-user .tree-info{font-size:12px;color:var(--text-light)}

/* ==================== 空状态 ==================== */
.empty-state{text-align:center;padding:60px 20px;color:var(--text-light)}
.empty-state .empty-icon{font-size:64px;margin-bottom:12px;opacity:.6}
.empty-state .empty-text{font-size:15px;margin-bottom:16px}

/* ==================== 骨架屏 ==================== */
.skeleton{background:linear-gradient(90deg,var(--bg-elevated) 25%,var(--bg-card) 50%,var(--bg-elevated) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}
@keyframes shimmer{0%{background-position:200% 0} 100%{background-position:-200% 0}}

/* ==================== 下拉刷新指示 ==================== */
.pull-indicator{text-align:center;padding:12px;font-size:13px;color:var(--text-lighter);display:none}
.pull-indicator.show{display:block}

/* ==================== 返回顶部 ==================== */
.back-top{position:fixed;right:16px;bottom:calc(var(--tabbar-h)+20px);width:44px;height:44px;border-radius:50%;background:var(--bg-card);border:1px solid var(--glass-border);box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:center;font-size:20px;cursor:pointer;z-index:90;opacity:0;pointer-events:none;transition:var(--transition)}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{transform:translateY(-2px)}

/* ==================== 图片预览 ==================== */
.img-preview-mask{position:fixed;inset:0;background:rgba(0,0,0,.9);z-index:600;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:.3s}
.img-preview-mask.show{opacity:1;pointer-events:auto}
.img-preview-mask img{max-width:90%;max-height:90%;object-fit:contain;border-radius:4px}

/* ==================== 数量控件 ==================== */
.qty-control{display:inline-flex;align-items:center;gap:0;border:1.5px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-card)}
.qty-control button{width:32px;height:32px;font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;background:var(--bg-elevated);transition:var(--transition);border:none;color:var(--text)}
.qty-control button:hover{background:rgba(244,114,182,.1)}
.qty-control button:active{background:rgba(244,114,182,.2)}
.qty-control input{width:44px;height:32px;text-align:center;font-size:14px;font-weight:600;border:none;border-left:1.5px solid var(--border);border-right:1.5px solid var(--border);background:var(--bg-card);color:var(--text)}

/* ==================== 进度条 ==================== */
.progress{height:6px;background:var(--bg-elevated);border-radius:3px;overflow:hidden}
.progress .bar{height:100%;border-radius:3px;background:var(--gradient-primary);transition:width .5s ease}

/* ==================== 信息行 ==================== */
.info-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px}
.info-row .label{color:var(--text-light)}

/* ==================== 趋势图 ==================== */
.trend-chart{display:grid;grid-template-columns:repeat(auto-fit,minmax(52px,1fr));gap:10px;align-items:end;min-height:240px;padding:8px 0}
.trend-col{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:0}
.trend-value{font-size:11px;color:var(--text-light);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.trend-bar-wrap{width:100%;height:160px;display:flex;align-items:flex-end;justify-content:center;padding:0 4px}
.trend-bar{width:100%;max-width:28px;border-radius:12px 12px 6px 6px;background:var(--gradient-primary);box-shadow:0 10px 18px rgba(244,114,182,.15);transition:height .3s ease}
.trend-label{font-size:11px;color:var(--text-lighter)}

/* ==================== 步骤条 ==================== */
.steps{display:flex;justify-content:space-between;padding:16px;position:relative}
.steps::before{content:'';position:absolute;top:30px;left:40px;right:40px;height:2px;background:var(--border)}
.step{display:flex;flex-direction:column;align-items:center;gap:6px;position:relative;z-index:1}
.step .step-dot{width:24px;height:24px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:12px;color:#fff;transition:var(--transition)}
.step.done .step-dot,.step.active .step-dot{background:var(--primary)}
.step .step-label{font-size:11px;color:var(--text-light)}
.step.active .step-label{color:var(--primary);font-weight:600}

/* ==================== 通知小红点 ==================== */
.dot-badge{position:relative}
.dot-badge::after{content:'';position:absolute;top:0;right:0;width:8px;height:8px;background:var(--primary);border-radius:50%;border:2px solid #fff}

/* ==================== 分割线 ==================== */
.divider{display:flex;align-items:center;gap:12px;margin:16px 0;color:var(--text-lighter);font-size:12px}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--border)}

/* ==================== 底部操作栏(通用) ==================== */
.bottom-bar{position:fixed;bottom:0;left:0;right:0;display:flex;align-items:center;padding:8px 16px;background:rgba(14,11,26,.92);backdrop-filter:blur(16px);border-top:1px solid var(--glass-border);z-index:100;gap:12px;padding-bottom:calc(8px + env(safe-area-inset-bottom))}

/* ==================== 价格显示 ==================== */
.price-tag{color:var(--primary);font-weight:700}
.price-tag::before{content:'¥';font-size:70%;margin-right:1px}
.price-del{text-decoration:line-through;color:var(--text-lighter);font-size:12px}

/* ==================== 响应式 ==================== */
@media(min-width:768px){
  .product-grid{grid-template-columns:repeat(3,1fr)}
  .cate-grid{grid-template-columns:repeat(10,1fr)}
  .stat-grid{grid-template-columns:repeat(4,1fr)}
  .live-player{max-width:480px;margin:0 auto}
}
@media(min-width:1024px){
  .product-grid{grid-template-columns:repeat(4,1fr)}
  .container{padding:0 24px}
}
@media(max-width:600px){
  .admin-sidebar{transform:translateX(-100%);width:240px}
  .admin-sidebar.open{transform:translateX(0)}
  .admin-main{margin-left:0}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .form-row{flex-direction:column}
  .coupon-card .coupon-left{width:90px;padding:12px 4px}
  .coupon-card .coupon-left .amount{font-size:22px}
  .admin-table{overflow-x:auto}
  .admin-table table{min-width:600px}
}
@media(max-width:400px){
  .chat-bubble{max-width:88%}
}
@media(max-width:360px){
  .product-grid{gap:8px;padding:0 8px}
  .cate-grid{grid-template-columns:repeat(4,1fr)}
}

/* ==================== 动画 ==================== */
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .4s ease forwards}
@keyframes slideUp{from{transform:translateY(100%)} to{transform:translateY(0)}}
.slide-up{animation:slideUp .3s ease forwards}
@keyframes slideDown{from{transform:translateY(-20px);opacity:0} to{transform:translateY(0);opacity:1}}
.slide-down{animation:slideDown .3s ease forwards}
@keyframes scaleIn{from{transform:scale(.8);opacity:0} to{transform:scale(1);opacity:1}}
.scale-in{animation:scaleIn .25s ease forwards}
@keyframes spin{from{transform:rotate(0)} to{transform:rotate(360deg)}}

/* ==================== Loading ==================== */
.loading-spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}

/* ==================== 分页 ==================== */
.pagination{display:flex;align-items:center;justify-content:center;gap:6px;padding:16px}
.pagination .pg{min-width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:1px solid var(--glass-border);border-radius:var(--radius-xs);font-size:13px;cursor:pointer;transition:var(--transition);padding:0 8px;background:var(--bg-card);color:var(--text)}
.pagination .pg:hover{border-color:var(--primary);color:var(--primary)}
.pagination .pg.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination .pg.disabled{opacity:.4;cursor:not-allowed}

/* ==================== 开关 ==================== */
.switch{width:44px;height:24px;background:var(--bg-elevated);border:1px solid var(--glass-border);border-radius:12px;position:relative;cursor:pointer;transition:var(--transition)}
.switch.on{background:var(--primary);border-color:var(--primary)}
.switch::after{content:'';position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch.on::after{left:22px}

/* ==================== 文字省略 ==================== */
.text-lighter{color:var(--text-lighter)}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-spin{animation:spin .8s linear infinite}

/* ==================== 安全区域 ==================== */
@supports(padding-bottom:env(safe-area-inset-bottom)){
  .tabbar{padding-bottom:env(safe-area-inset-bottom)}
  .bottom-bar{padding-bottom:calc(8px + env(safe-area-inset-bottom))}
}