:root{--brand: #C8191F;--brand-dark: #A3141A;--red: #E5484D;--purple: #8E4EC6;--green: #2FA36B;--bg: #F5F6F8;--card: #FFFFFF;--text: #1F2329;--text2: #646A73;--line: #E5E6EB;--blue: #4A7DE0}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{height:100%}body{font-family:PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:15px}#app{min-height:100vh}.page{max-width:1200px;margin:0 auto;padding:64px 16px 80px}.top-nav{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--brand);color:#fff;display:flex;align-items:center;gap:6px;padding:8px 12px;box-shadow:0 2px 8px #00000026;flex-wrap:wrap}.top-nav .logo{font-weight:700;font-size:16px;margin-right:8px;white-space:nowrap}.top-nav .logo small{font-weight:400;font-size:11px;opacity:.85;display:block}.top-nav .nav-btn{border:none;background:#ffffff29;color:#fff;padding:6px 12px;border-radius:16px;font-size:13px;cursor:pointer;white-space:nowrap;text-decoration:none}.top-nav .nav-btn:hover{background:#ffffff4d}.top-nav .nav-btn.on{background:#fff;color:var(--brand);font-weight:700}.top-nav .sp{flex:1}h2.page-title{font-size:18px;margin-bottom:12px}.card{background:var(--card);border-radius:12px;padding:14px;box-shadow:0 1px 4px #0000000f}.muted{color:var(--text2);font-size:12px}.btn{border:none;border-radius:10px;padding:14px;font-size:16px;font-weight:700;color:#fff;cursor:pointer;flex:1}.btn:active{transform:scale(.96)}.btn-red{background:var(--red)}.btn-purple{background:var(--purple)}.btn-green{background:var(--green)}.btn-gray{background:#9aa0a6}.btn-blue{background:var(--blue)}.btn-sm{padding:8px 14px;font-size:13px;border-radius:8px;flex:none}.toast{position:fixed;left:50%;bottom:90px;transform:translate(-50%);background:#000000d1;color:#fff;padding:10px 18px;border-radius:20px;font-size:14px;z-index:300;max-width:88vw;text-align:center;animation:toastIn .2s ease}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(8px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.st{border-radius:10px;padding:12px 8px;text-align:center;color:#fff;cursor:pointer;transition:transform .1s,box-shadow .15s}.st:active{transform:scale(.95)}.st .nm{font-weight:700;font-size:14px}.st .tm{font-size:11px;opacity:.92;margin-top:3px}.st-red{background:var(--red)}.st-purple{background:var(--purple)}.st-green{background:var(--green)}.st.large .nm{font-size:20px}.st.large .tm{font-size:14px}.big-mode .page{font-size:19px}.big-mode .st .nm{font-size:24px}.big-mode .st .tm{font-size:17px}.big-mode .btn{font-size:20px}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px}.modal{background:#fff;border-radius:14px;max-width:420px;width:100%;max-height:86vh;overflow-y:auto;padding:18px}.modal h3{font-size:17px;margin-bottom:12px}.modal .close{float:right;border:none;background:#f2f3f5;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:14px;color:var(--text2)}.ad-banner{background:linear-gradient(90deg,#fff7e6,#fff1cc);border:1px dashed #E8C96A;border-radius:10px;padding:10px 14px;margin:12px 0;display:flex;align-items:center;gap:10px}.ad-banner .ad-tag{background:#e8c96a;color:#6b4e00;font-size:10px;padding:1px 6px;border-radius:4px;flex:none;font-weight:700}.ad-banner .ad-text{color:#8a6d1a;font-size:13px;flex:1}@media (max-width: 640px){.page{padding:64px 10px 10px}.st .nm{font-size:13px}.st .tm{font-size:10px}}