*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #FF6B8A;--primary-light: #FFF0F4;--bg: #FFF8F8;--text: #4A4A4A;--text-light: #9B9B9B;--yellow: #FFD666;--yellow-light: #FFFBE6;--green: #7ECB76}html{font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100vh}#app{max-width:480px;margin:0 auto;min-height:100vh}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;color:var(--text-light);gap:12px}.spinner{width:32px;height:32px;border:3px solid #f0dcdc;border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.pay-page{padding:0 20px 32px}.header{text-align:center;padding:36px 0 28px}.header-logo{width:72px;height:72px;margin-bottom:8px;border-radius:50%}.header-title{font-size:1.4rem;font-weight:700;color:var(--text)}.header-subtitle{font-size:.85rem;color:var(--text-light);margin-top:4px}.plans-section{margin-bottom:28px}.plan-row{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;margin-bottom:10px;background:#fff;border-radius:16px;box-shadow:0 2px 8px #ff6b8a14;cursor:pointer;transition:all .2s}.plan-row:active{transform:scale(.98)}.plan-row.selected{background:var(--primary-light);box-shadow:0 2px 12px #ff6b8a33}.plan-left{display:flex;align-items:center;gap:6px}.plan-name{font-size:1rem;font-weight:600}.plan-days{font-size:.85rem;color:var(--text-light)}.plan-tag{font-size:.65rem;font-weight:600;padding:2px 8px;border-radius:8px;background:var(--yellow-light);color:#c8960c}.plan-right{display:flex;align-items:center;gap:8px}.plan-price{font-size:1.2rem;font-weight:700;color:var(--primary)}.plan-check{width:22px;height:22px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700}.features-section{margin-bottom:28px}.section-title{font-size:1rem;font-weight:700;margin-bottom:12px;padding-left:4px;color:var(--text)}.features-list{background:#fff;border-radius:16px;padding:12px 16px;box-shadow:0 2px 8px #ff6b8a0f}.feature-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid #FFF0F0}.feature-item:last-child{border-bottom:none}.feature-icon{font-size:24px;color:var(--primary);flex-shrink:0;width:32px;text-align:center}.feature-text{font-size:.88rem;color:var(--text);flex:1}.action-area{text-align:center;padding:8px 0 24px}.pay-btn{width:100%;max-width:300px;height:50px;background:linear-gradient(135deg,#ff6b8a,#ff8e9e);color:#fff;font-size:1.1rem;font-weight:700;border:none;border-radius:25px;cursor:pointer;box-shadow:0 4px 16px #ff6b8a4d;transition:all .2s;display:inline-flex;align-items:center;justify-content:center}.pay-btn:active{transform:scale(.97);opacity:.9}.pay-btn.disabled{background:#ddd;box-shadow:none;cursor:not-allowed}.pay-btn.disabled:active{transform:none}.btn-spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}.action-hint{margin-top:12px;font-size:.85rem;color:var(--text-light)}.footer{text-align:center;padding:16px 0;font-size:.78rem;color:var(--text-light)}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;padding:24px;animation:fadeIn .2s}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-card{background:#fff;border-radius:20px;padding:32px 24px 24px;text-align:center;max-width:300px;width:100%;box-shadow:0 8px 32px #0000001f;animation:popIn .3s ease}@keyframes popIn{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.modal-icon{font-size:3rem;margin-bottom:12px}.modal-title{font-size:1.1rem;font-weight:700;margin-bottom:8px}.modal-success .modal-title{color:var(--green)}.modal-fail .modal-title{color:#e07474}.modal-desc{font-size:.85rem;color:var(--text-light);margin-bottom:20px;line-height:1.5}.modal-btn{padding:10px 36px;background:var(--primary);color:#fff;font-size:.9rem;font-weight:600;border:none;border-radius:20px;cursor:pointer}.modal-btn:active{opacity:.85}@media(min-width:768px){#app{border-left:1px solid #FFE8E8;border-right:1px solid #FFE8E8}}