*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#faf9f7;--card:#ffffff;--card-hover:#f8f7f5;--border:#e8e5e0;--border2:#d4d0c8;
  --text:#1a1a1a;--text2:#555;--text3:#999;--text4:#bbb;
  --accent:#e74c3c;--accent2:#ff6b6b;--accent-bg:rgba(231,76,60,.08);
  --green:#27ae60;--gold:#f39c12;
  --shadow:0 2px 12px rgba(0,0,0,.06);--shadow-lg:0 8px 30px rgba(0,0,0,.1);
  --radius:12px;--radius-sm:8px;
}
[data-theme="dark"]{
  --bg:#111111;--card:#1a1a1a;--card-hover:#222;--border:#2a2a2a;--border2:#333;
  --text:#eee;--text2:#aaa;--text3:#666;--text4:#444;
  --shadow:0 2px 12px rgba(0,0,0,.3);--shadow-lg:0 8px 30px rgba(0,0,0,.4);
}
body{font-family:'Noto Sans SC',-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;transition:background .3s,color .3s;-webkit-font-smoothing:antialiased}

/* 动画 */
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideIn{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:scale(1)}}
.fade-up{animation:fadeUp .4s ease both}

/* 顶栏 */
.topbar{position:sticky;top:0;z-index:100;background:var(--card);border-bottom:1px solid var(--border);backdrop-filter:blur(12px)}
.topbar-inner{max-width:1100px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none}
.brand-icon{font-size:24px}
.brand-text{font-size:18px;font-weight:800;color:var(--text)}
.top-actions{display:flex;align-items:center;gap:8px}
.theme-btn{width:36px;height:36px;border:1px solid var(--border);border-radius:50%;background:var(--card);color:var(--text2);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}
.theme-btn:hover{border-color:var(--accent);color:var(--accent)}
.btn-login{padding:8px 18px;border:1px solid var(--accent);border-radius:var(--radius-sm);background:transparent;color:var(--accent);font-size:13px;font-weight:600;cursor:pointer;transition:all .2s}
.btn-login:hover{background:var(--accent);color:#fff}

/* 汉堡菜单 */
.hamburger{width:36px;height:36px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);color:var(--text2);font-size:18px;cursor:pointer;display:none;align-items:center;justify-content:center;transition:all .2s}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:200;opacity:0;pointer-events:none;transition:opacity .3s}
.overlay.show{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;left:0;width:260px;height:100%;background:var(--card);border-right:1px solid var(--border);z-index:201;transform:translateX(-100%);transition:transform .3s ease;display:flex;flex-direction:column}
.drawer.show{transform:translateX(0)}
.drawer-head{padding:20px;border-bottom:1px solid var(--border)}
.drawer-head h2{font-size:18px;font-weight:800}
.drawer-nav{flex:1;padding:12px}
.drawer-nav a{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:var(--radius-sm);color:var(--text2);text-decoration:none;font-size:14px;transition:all .2s;margin-bottom:2px}
.drawer-nav a:hover{background:var(--accent-bg);color:var(--accent)}
.drawer-nav a.active{background:var(--accent-bg);color:var(--accent);font-weight:600}
.drawer-foot{padding:12px;border-top:1px solid var(--border)}

/* 主内容 */
.main{max-width:1100px;margin:0 auto;padding:20px;padding-bottom:100px}

/* Banner */
.hero{border-radius:16px;padding:40px 28px;margin-bottom:24px;background:linear-gradient(135deg,#1a1a2e,#16213e);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 50%,rgba(231,76,60,.15),transparent 60%),radial-gradient(circle at 80% 50%,rgba(124,58,237,.1),transparent 60%)}
.hero-content{position:relative;z-index:1;text-align:center}
.hero h1{font-size:28px;font-weight:800;color:#fff;margin-bottom:6px}
.hero p{color:rgba(255,255,255,.6);font-size:14px;letter-spacing:2px}

/* 区块 */
.section{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px;animation:fadeUp .4s ease both}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:8px}
.section-title{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px}

/* 捐赠 */
.donate-stats{display:flex;gap:10px;font-size:12px;color:var(--text3)}
.donate-stats .val{font-weight:700;color:var(--accent);font-size:15px}
.donate-list{max-height:240px;overflow-y:auto;margin-bottom:14px}
.donate-item{display:flex;align-items:center;padding:8px 0;border-bottom:1px solid var(--border)}
.donate-item:last-child{border:none}
.donate-rank{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-right:10px;flex-shrink:0;border:1px solid var(--border);color:var(--text2)}
.donate-rank.t1{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#000;border:none}
.donate-rank.t2{background:linear-gradient(135deg,#94a3b8,#64748b);color:#fff;border:none}
.donate-rank.t3{background:linear-gradient(135deg,#d97706,#b45309);color:#fff;border:none}
.donate-info{flex:1;min-width:0}
.donate-nick{font-size:13px;font-weight:500}
.donate-msg{font-size:11px;color:var(--text3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.donate-amt{font-size:15px;font-weight:700;color:var(--accent);flex-shrink:0}
.btn-donate{width:100%;padding:12px;border:1px solid var(--accent);border-radius:var(--radius-sm);background:var(--accent-bg);color:var(--accent);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}
.btn-donate:hover{background:var(--accent);color:#fff}

/* 分类 */
.cat-tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.cat-tab{padding:8px 16px;border:1px solid var(--border);border-radius:20px;background:transparent;color:var(--text2);font-size:13px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px}
.cat-tab:hover{border-color:var(--accent);color:var(--accent)}
.cat-tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.cat-tab img{width:20px;height:20px;border-radius:4px;object-fit:cover}

/* 商品网格 */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.product-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;cursor:pointer;transition:all .25s}
.product-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.product-img{height:140px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.product-img img{width:100%;height:100%;object-fit:cover}
.product-img .emoji-fallback{font-size:48px}
.product-tag{position:absolute;top:8px;right:8px;background:var(--accent);color:#fff;font-size:10px;padding:2px 6px;border-radius:6px;font-weight:600}
.product-info{padding:12px}
.product-name{font-size:14px;font-weight:600;margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.product-desc{font-size:11px;color:var(--text3);margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.product-price{display:flex;align-items:baseline;gap:6px;margin-bottom:6px}
.price{font-size:18px;font-weight:800;color:var(--accent)}
.price-old{font-size:12px;color:var(--text3);text-decoration:line-through}
.product-meta{display:flex;gap:12px;font-size:11px;color:var(--text3)}

/* 悬浮购物车 */
.float-cart{position:fixed;right:20px;bottom:28px;z-index:99}
.float-btn{width:52px;height:52px;border:none;border-radius:50%;background:var(--accent);color:#fff;font-size:22px;cursor:pointer;transition:all .3s;position:relative;box-shadow:0 4px 16px rgba(231,76,60,.3)}
.float-btn:hover{transform:scale(1.1)}
.float-badge{position:absolute;top:-3px;right:-3px;min-width:18px;height:18px;background:#ff4757;color:#fff;font-size:10px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px;font-weight:700}

/* 弹窗 */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:1000;padding:20px}
.modal.active{display:flex}
.modal-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:400px;max-height:90vh;overflow-y:auto;animation:slideIn .2s ease}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.modal-head h3{font-size:16px;font-weight:600}
.btn-close{width:30px;height:30px;border:1px solid var(--border);background:transparent;border-radius:50%;color:var(--text2);font-size:16px;cursor:pointer;transition:all .2s}
.btn-close:hover{border-color:var(--accent);color:var(--accent)}
.modal-body{padding:20px}

/* 表单 */
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:12px;font-weight:500;margin-bottom:5px;color:var(--text2)}
.form-group input,.form-group textarea{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text);font-size:14px;transition:all .2s;font-family:inherit}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-bg)}
.btn-primary{padding:11px 22px;border:none;border-radius:var(--radius-sm);background:var(--accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}
.btn-primary:hover{background:var(--accent2);box-shadow:0 4px 12px rgba(231,76,60,.3)}
.btn-block{width:100%}
.form-tip{text-align:center;margin-top:14px;font-size:12px;color:var(--text3)}
.link{color:var(--accent);text-decoration:none}

/* 捐赠金额 */
.amt-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}
.amt-btn{padding:10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--text2);font-size:13px;cursor:pointer;transition:all .2s}
.amt-btn:hover{border-color:var(--accent);color:var(--accent)}
.amt-btn.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent)}

/* 支付方式 */
.pay-modes{display:flex;gap:8px;margin-bottom:14px}
.pay-mode{flex:1;padding:10px;border:1px solid var(--border);border-radius:var(--radius-sm);text-align:center;font-size:12px;cursor:pointer;transition:all .2s;color:var(--text2)}
.pay-mode:hover{border-color:var(--accent)}
.pay-mode.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent);font-weight:600}

/* 购物车 */
.cart-list{max-height:240px;overflow-y:auto;margin-bottom:10px}
.cart-item{display:flex;align-items:center;padding:8px 0;border-bottom:1px solid var(--border);gap:8px}
.cart-item:last-child{border:none}
.cart-img{width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;border:1px solid var(--border);overflow:hidden}
.cart-img img{width:100%;height:100%;object-fit:cover}
.cart-info{flex:1;min-width:0}
.cart-name{font-size:13px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cart-price{font-size:12px;color:var(--accent)}
.cart-qty{display:flex;align-items:center;gap:4px}
.cart-qty button,.qty-ctrl button{width:24px;height:24px;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text2);cursor:pointer;font-size:13px;transition:all .2s}
.cart-qty button:hover,.qty-ctrl button:hover{border-color:var(--accent);color:var(--accent)}
.cart-qty span,.qty-ctrl span{width:28px;text-align:center;font-size:13px}
.cart-del{width:22px;height:22px;border:none;background:transparent;color:var(--text3);cursor:pointer;font-size:16px}
.cart-del:hover{color:var(--accent)}
.empty{text-align:center;color:var(--text3);padding:36px 0;font-size:13px}
.cart-foot{border-top:1px solid var(--border);padding-top:14px}
.cart-total{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:13px}
.total-val{font-size:20px;font-weight:800;color:var(--accent)}

/* 详情 */
.detail-img{width:100%;height:180px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:14px;border:1px solid var(--border);overflow:hidden}
.detail-img img{width:100%;height:100%;object-fit:cover}
.qty-row{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:13px}
.qty-ctrl{display:flex;align-items:center;border:1px solid var(--border);border-radius:8px;overflow:hidden}

/* 订单 */
.order-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;margin-bottom:10px}
.order-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:12px}
.order-badge{padding:3px 10px;border-radius:8px;font-size:11px;font-weight:600}
.order-badge.pending{background:rgba(251,191,36,.1);color:var(--gold)}
.order-badge.paid{background:rgba(39,174,96,.1);color:var(--green)}
.order-id{font-size:11px;color:var(--text3);word-break:break-all;font-family:monospace}
.order-items{font-size:12px;color:var(--text2);margin-bottom:8px;display:flex;flex-wrap:wrap;gap:6px}
.order-foot{display:flex;justify-content:space-between;align-items:center;font-size:12px}
.btn-sm{padding:4px 12px;border:1px solid var(--accent);border-radius:6px;background:transparent;color:var(--accent);font-size:11px;cursor:pointer}
.btn-sm:hover{background:var(--accent);color:#fff}

/* 卡密 */
.card-data{background:var(--accent-bg);border:1px solid rgba(231,76,60,.15);border-radius:8px;padding:10px 12px;margin-bottom:6px}
.card-label{font-size:11px;color:var(--text3)}
.card-value{font-size:13px;font-weight:600;color:var(--accent);font-family:monospace;word-break:break-all}

/* 查询 */
.query-modes{display:flex;gap:8px;margin-bottom:14px}
.qmode{flex:1;padding:10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--text2);font-size:12px;cursor:pointer;text-align:center;transition:all .2s}
.qmode:hover{border-color:var(--accent)}
.qmode.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent);font-weight:600}

/* Toast */
.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--card);color:var(--text);padding:12px 24px;border-radius:var(--radius-sm);font-size:13px;z-index:2000;opacity:0;pointer-events:none;transition:opacity .3s;border:1px solid var(--border);box-shadow:var(--shadow-lg)}
.toast.show{opacity:1}

/* 加载 */
@keyframes spin{to{transform:rotate(360deg)}}
.loading-spinner{width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 8px}

@media(max-width:768px){.hamburger{display:flex}.nav-links{display:none}.hero h1{font-size:22px}.product-grid{grid-template-columns:repeat(2,1fr);gap:10px}.product-img{height:110px}.amt-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.main{padding:12px;padding-bottom:80px}.topbar-inner{padding:10px 14px}}