:root{--brand: #ff5f6d;--brand-2: #ff8a5f;--brand-soft: #fff1ef;--grad: linear-gradient(135deg, #ff5f6d, #ff8a5f);--grad-soft: linear-gradient(135deg, #fff1ef, #fff7f3);--ink: #1f2430;--ink-2: #5b6472;--ink-3: #8a92a1;--ink-4: #a8aeb9;--line: #eef0f5;--line-2: #e3e6ee;--bg: #f6f7fb;--card: #fff;--r-sm: 10px;--r: 16px;--r-lg: 20px;--sh-1: 0 1px 2px rgba(31, 36, 48, .04), 0 2px 10px rgba(31, 36, 48, .05);--sh-2: 0 2px 6px rgba(31, 36, 48, .05), 0 10px 28px rgba(31, 36, 48, .08);--sh-brand: 0 6px 18px rgba(255, 95, 109, .3);--ease: cubic-bezier(.22, .61, .36, 1);--sat: env(safe-area-inset-top, 0px);--sab: env(safe-area-inset-bottom, 0px)}*{margin:0;padding:0;box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{font-family:inherit;border:none;cursor:pointer;background:none;color:inherit}img{display:block;max-width:100%}input,textarea,select{font-family:inherit;outline:none}#app{min-height:100vh}.container{max-width:680px;margin:0 auto;padding:0 16px}.card{background:var(--card);border-radius:var(--r);box-shadow:var(--sh-1);overflow:hidden}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:13px 24px;border-radius:999px;font-size:15px;font-weight:600;color:#fff;background:var(--grad);box-shadow:var(--sh-brand);transition:transform .16s var(--ease),box-shadow .2s,opacity .2s}.btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px #ff5f6d61}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}.btn.block{width:100%}.btn.sm{padding:8px 16px;font-size:13px;box-shadow:none}.btn.ghost{background:#fff;color:var(--brand);border:1px solid #ffc9cf;box-shadow:none}.btn.ghost:hover{background:var(--brand-soft);transform:none}.btn.gray{background:#f1f3f8;color:var(--ink-2);box-shadow:none}.btn.gray:hover{background:#e9ecf3;transform:none}.navbar{position:sticky;top:0;z-index:100;padding-top:var(--sat);background:#ffffffd1;backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(31,36,48,.06)}.sticky-under-nav{position:sticky;top:calc(54px + var(--sat))}.safe-top{padding-top:var(--sat)}.safe-bottom{padding-bottom:var(--sab)}.navbar-inner{display:flex;align-items:center;height:54px}.navbar .logo{font-size:17px;font-weight:800;display:flex;align-items:center;gap:8px;letter-spacing:-.2px}.navbar .logo .dot{width:28px;height:28px;border-radius:9px;background:var(--grad);box-shadow:0 3px 10px #ff5f6d59;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:700}.navbar .spacer{flex:1}.navbar .nav-link{font-size:14px;color:var(--ink-2);margin-left:16px;padding:6px 12px;border-radius:999px;transition:color .18s,background .18s}.navbar .nav-link:hover{color:var(--brand);background:var(--brand-soft)}.navbar .nav-link.on{color:var(--brand);font-weight:600}.risk-bar{background:linear-gradient(90deg,#fff7e8,#fffaf0);color:#9a6b00;font-size:12px;text-align:center;padding:7px 14px;border-bottom:1px solid #f6e7c8}.empty{text-align:center;color:var(--ink-4);padding:60px 0;font-size:14px}.empty .big{font-size:46px;margin-bottom:12px;filter:saturate(.9)}.price{color:#ff4d5a;font-weight:800}.price small{font-size:12px;font-weight:600}.field{margin-bottom:16px}.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}.field label .req{color:#ff4d5a}.field .ipt{width:100%;padding:12px 14px;border-radius:var(--r-sm);border:1px solid var(--line-2);background:#fafbfd;font-size:15px;transition:border-color .18s,box-shadow .18s,background .18s}.field .ipt:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px #ff5f6d1f}.field .help{font-size:12px;color:var(--ink-4);margin-top:4px}.video-box{width:100%;border-radius:var(--r);overflow:hidden;background:#000}.video-box video{width:100%;display:block;max-height:70vh}.chip{display:inline-block;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px}.toast-layer{position:fixed;left:0;right:0;top:38%;display:flex;flex-direction:column;align-items:center;gap:8px;z-index:9999;pointer-events:none;padding:0 24px}.toast{display:inline-flex;align-items:center;gap:7px;background:#141820eb;color:#fff;padding:11px 20px;border-radius:12px;font-size:14px;max-width:78vw;text-align:left;line-height:1.45;box-shadow:0 8px 30px #00000040;animation:popIn .22s var(--ease);transition:opacity .2s var(--ease),transform .2s var(--ease)}.toast .t-icon{flex-shrink:0;width:17px;height:17px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;color:#fff}.toast-success .t-icon{background:#22c55e}.toast-error .t-icon{background:#ff4d5a}.toast-success{background:#102c1ef0}.toast-error{background:#3a1418f0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes popIn{0%{opacity:0;transform:translateY(8px) scale(.94)}to{opacity:1;transform:none}}@keyframes riseIn{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}.rise{animation:riseIn .5s var(--ease) both}.sk{background:linear-gradient(90deg,#eef0f5 25%,#f6f7fb 37%,#eef0f5 63%);background-size:400% 100%;animation:skMove 1.3s ease infinite;border-radius:8px}@keyframes skMove{0%{background-position:100% 50%}to{background-position:0 50%}}.page-loading{text-align:center;padding:80px 0;color:var(--ink-4)}.divider{height:1px;background:var(--line);margin:16px 0}@media(min-width:768px){.container{max-width:1000px}body{background:#eef0f5}.card{box-shadow:var(--sh-2)}}@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}@media(max-width:768px){input,textarea,select{font-size:16px}}@supports (padding: env(safe-area-inset-bottom)){.bottom-bar,.footer-bar,.pay-bar,.fixed-bottom{padding-bottom:calc(12px + env(safe-area-inset-bottom))}}