:root{
  --orange:#FF6B35;
  --orange-dark:#E6551F;
  --red:#FF2A50;
  --bg:#f5f5f5;
  --card:#ffffff;
  --text:#222222;
  --gray:#888888;
  --gray-light:#aaaaaa;
  --line:#ececec;
  --green:#1faa59;
  --radius:14px;
  --shadow:0 2px 14px rgba(0,0,0,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.65;font-size:15px;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.page{padding:28px 0 60px}
.mt{margin-top:18px}.mb{margin-bottom:18px}
.text-center{text-align:center}
.muted{color:var(--gray)}
.hidden{display:none!important}

/* ===== 顶部导航 ===== */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.topbar .container{display:flex;align-items:center;height:64px;gap:26px}
.logo{font-size:22px;font-weight:800;color:var(--orange);white-space:nowrap}
.logo b{color:var(--text)}
.nav{display:flex;gap:22px;flex:1}
.nav a{color:#444;font-size:15px;padding:6px 2px;position:relative}
.nav a.active{color:var(--orange);font-weight:700}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-21px;height:3px;background:var(--orange);border-radius:3px}
.auth{display:flex;gap:10px;align-items:center;white-space:nowrap}
.auth .hi{color:var(--gray);font-size:14px}
.auth .hi b{color:var(--orange)}

/* ===== 按钮 ===== */
.btn{display:inline-block;padding:9px 20px;border-radius:999px;font-size:14px;cursor:pointer;border:1px solid transparent;transition:.15s;font-weight:600}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark)}
.btn-outline{background:#fff;color:var(--orange);border-color:var(--orange)}
.btn-outline:hover{background:#fff5f0}
.btn-ghost{background:#fff;color:#555;border-color:var(--line)}
.btn-block{display:block;width:100%;text-align:center}
.btn-lg{padding:13px 26px;font-size:16px}

/* ===== Hero ===== */
.hero{background:linear-gradient(120deg,#FF6B35,#FF9259);color:#fff;padding:56px 0}
.hero h1{font-size:36px;margin-bottom:12px;font-weight:800}
.hero p{opacity:.95;font-size:17px;max-width:640px}
.hero .search{margin-top:24px;display:flex;max-width:560px;background:#fff;border-radius:999px;padding:6px;gap:6px}
.hero .search input{flex:1;border:none;outline:none;padding:0 18px;font-size:15px;border-radius:999px}
.hero .search .btn{border-radius:999px}

/* ===== 区块标题 ===== */
.section{margin-top:36px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:18px}
.section-head h2{font-size:22px;font-weight:800}
.section-head h2 small{font-size:14px;color:var(--gray);font-weight:400;margin-left:8px}

/* ===== 卡片网格 ===== */
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:860px){.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.card .body{padding:16px}
.card h3{font-size:17px;margin-bottom:6px}
.card .meta{color:var(--gray);font-size:13px;margin-bottom:10px}
.card .desc{color:#555;font-size:14px;margin-bottom:12px;flex:1}
.tag{display:inline-block;background:#fff3ec;color:var(--orange);font-size:12px;padding:3px 10px;border-radius:999px;margin:0 6px 6px 0}

/* 店铺卡 */
.shop-card .cover{height:120px;display:flex;align-items:center;justify-content:center;font-size:52px;background:linear-gradient(120deg,#fff1ea,#ffe3d4)}
.shop-card .score{color:var(--orange);font-weight:700}
.shop-card .row{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--gray)}

/* ===== 步骤条 ===== */
.steps{display:flex;counter-reset:step;margin:10px 0 30px}
.step{flex:1;text-align:center;position:relative;padding-top:46px}
.step::before{content:counter(step);counter-increment:step;position:absolute;top:0;left:50%;transform:translateX(-50%);width:36px;height:36px;border-radius:50%;background:#fff;border:2px solid var(--orange);color:var(--orange);display:flex;align-items:center;justify-content:center;font-weight:700}
.step.done::before{background:var(--orange);color:#fff}
.step:not(:last-child)::after{content:"";position:absolute;top:17px;left:50%;width:100%;height:2px;background:var(--line);z-index:-1}
.step .t{font-weight:700;margin-top:8px}
.step .d{font-size:13px;color:var(--gray)}

/* ===== 表格 ===== */
.table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.table th,.table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
.table th{background:#fafafa;color:#555;font-weight:700}
.table tr:last-child td{border-bottom:none}
.table .price{color:var(--orange);font-weight:800;font-size:16px}

/* ===== 表单 ===== */
.form{max-width:460px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.form h2{font-size:22px;margin-bottom:6px}
.form .sub{color:var(--gray);margin-bottom:20px;font-size:14px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;outline:none;font-family:inherit}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--orange)}
.field .tip{font-size:12px;color:var(--gray-light);margin-top:4px}
.check{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:#666;margin:14px 0}
.check input{margin-top:4px}
.link{color:var(--orange)}

/* ===== 徽章 ===== */
.badge{display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;font-weight:600}
.badge-green{background:#e7f7ee;color:var(--green)}
.badge-orange{background:#fff3ec;color:var(--orange)}
.badge-gray{background:#f0f0f0;color:#888}
.badge-red{background:#ffeef0;color:var(--red)}

/* ===== 信息流 ===== */
.info-item{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px;margin-bottom:14px;display:flex;gap:14px}
.info-item .ava{width:46px;height:46px;border-radius:50%;background:#fff1ea;color:var(--orange);display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.info-item .main{flex:1}
.info-item h4{font-size:16px;margin-bottom:4px}
.info-item .infometa{font-size:13px;color:var(--gray);margin-top:6px}
.info-item .price{color:var(--orange);font-weight:800}

/* ===== 弹窗 ===== */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal{background:#fff;border-radius:16px;max-width:620px;width:100%;max-height:82vh;display:flex;flex-direction:column}
.modal header{padding:18px 22px;border-bottom:1px solid var(--line);font-size:18px;font-weight:800;display:flex;justify-content:space-between;align-items:center}
.modal .scroll{padding:20px 22px;overflow:auto;font-size:14px;color:#444;line-height:1.9}
.modal .scroll h4{margin:14px 0 6px;color:var(--text)}
.modal footer{padding:14px 22px;border-top:1px solid var(--line);text-align:right}

/* ===== 结果页 ===== */
.result{text-align:center;padding:50px 20px}
.result .ico{width:84px;height:84px;border-radius:50%;background:#e7f7ee;color:var(--green);display:flex;align-items:center;justify-content:center;font-size:46px;margin:0 auto 20px}
.result h2{font-size:26px;margin-bottom:10px}
.result p{color:var(--gray)}

/* ===== 详情页 ===== */
.detail-cover{height:200px;display:flex;align-items:center;justify-content:center;font-size:84px;background:linear-gradient(120deg,#fff1ea,#ffe3d4);border-radius:var(--radius)}
.detail-head{display:flex;gap:18px;align-items:center;margin-top:-40px;position:relative;padding:0 8px}
.detail-head .logo-big{width:84px;height:84px;border-radius:18px;background:#fff;display:flex;align-items:center;justify-content:center;font-size:42px;box-shadow:var(--shadow)}
.stat-row{display:flex;gap:30px;margin:18px 0;padding:16px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.stat{text-align:center}
.stat .n{font-size:22px;font-weight:800;color:var(--orange)}
.stat .l{font-size:13px;color:var(--gray)}

/* ===== 底部 ===== */
.footer{background:#2b2b2b;color:#bbb;margin-top:60px;padding:36px 0;font-size:13px}
.footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px}
.footer a{color:#bbb}
.footer .col h4{color:#fff;font-size:15px;margin-bottom:12px}
.footer .col p{margin-bottom:6px}

/* 工具类 */
.pill{display:inline-block;background:var(--orange);color:#fff;font-size:12px;padding:3px 12px;border-radius:999px}
.amount{font-size:30px;font-weight:800;color:var(--orange)}
.recharge-box{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:16px 0}
.recharge-opt{border:2px solid var(--line);border-radius:12px;padding:18px;text-align:center;cursor:pointer}
.recharge-opt.active{border-color:var(--orange);background:#fff8f4}
.recharge-opt .m{font-size:22px;font-weight:800}
.recharge-opt .g{font-size:13px;color:var(--gray)}