:root{--ink:#080808;--paper:#f5f5f2;--pink:#ff005e;--muted:#989895;--line:#373737;--pad:clamp(18px,3vw,48px)}
*{box-sizing:border-box}html{background:var(--ink)}body{margin:0;min-height:100svh;background:var(--ink);color:var(--paper);font:300 17px/1.4 "Helvetica Neue",Helvetica,Arial,"PingFang SC",sans-serif;overflow-x:hidden}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}::selection{background:var(--pink);color:#fff}
.page{min-height:100svh;position:relative;isolation:isolate;overflow:hidden}.page:before,.page:after{content:"";position:fixed;z-index:-2;border-radius:50%;filter:blur(90px);pointer-events:none}.page:before{width:55vw;height:55vw;right:-14vw;top:-20vw;background:rgba(255,0,94,.24);animation:floatA 13s ease-in-out infinite alternate}.page:after{width:48vw;height:48vw;left:-22vw;bottom:-25vw;background:rgba(79,39,255,.18);animation:floatB 17s ease-in-out infinite alternate}.grain{position:fixed;inset:0;z-index:-1;opacity:.06;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E")}@keyframes floatA{to{transform:translate(-8vw,12vh) scale(1.12)}}@keyframes floatB{to{transform:translate(12vw,-8vh) scale(.9)}}
.nav{height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 var(--pad);position:relative;z-index:3}.brand{width:142px;line-height:0}.brand img{display:block;width:100%}.nav-actions{display:flex;align-items:center;gap:10px}.round{height:40px;min-width:40px;border:1px solid #555;border-radius:999px;background:rgba(8,8,8,.32);padding:0 15px;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;line-height:1;text-transform:uppercase;letter-spacing:.09em;font-size:10px;transition:.25s}.round:hover{background:var(--paper);border-color:var(--paper);color:var(--ink)}
.progress-wrap{position:fixed;z-index:3;left:var(--pad);right:var(--pad);bottom:25px;display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center}.progress{height:1px;background:#3b3b3b;overflow:hidden}.progress span{display:block;width:0;height:100%;background:var(--pink);transition:width .5s cubic-bezier(.16,1,.3,1)}.progress-text{color:var(--muted);font:400 10px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.1em;text-transform:uppercase}
.form-shell{min-height:calc(100svh - 82px);display:grid;place-items:center;padding:45px var(--pad) 100px}.step{display:none;width:min(100%,980px);animation:enter .5s cubic-bezier(.16,1,.3,1)}.step.is-active{display:block}@keyframes enter{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}.kicker{display:block;color:var(--pink);margin-bottom:25px;font:400 11px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.13em;text-transform:uppercase}.step h1,.step h2{margin:0;font-size:clamp(51px,7.7vw,118px);font-weight:300;line-height:.86;letter-spacing:-.07em}.step h2{font-size:clamp(43px,6vw,88px);max-width:900px}.intro-copy{max-width:670px;margin:35px 0 0;color:#b2b2af;font-size:clamp(18px,1.6vw,25px);line-height:1.25}.start-row{display:flex;align-items:center;gap:20px;margin-top:48px}.primary{border:0;border-radius:999px;background:var(--pink);padding:15px 26px;font-weight:400;transition:transform .25s,background .25s}.primary:hover{transform:translateY(-2px);background:#ff2a78}.primary:disabled{opacity:.28;cursor:not-allowed;transform:none}.time{color:var(--muted);font-size:13px}.time:before{content:"◷";margin-right:6px}.field-wrap{margin-top:50px}.choices{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:42px}.choice{position:relative}.choice input{position:absolute;opacity:0;pointer-events:none}.choice label{min-height:88px;border:1px solid #474747;padding:19px 21px;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;transition:.25s;background:rgba(10,10,10,.34)}.choice label:after{content:"";width:14px;height:14px;border:1px solid #6b6b6b;border-radius:50%;flex:0 0 auto}.choice input:checked+label{border-color:var(--pink);background:rgba(255,0,94,.09)}.choice input:checked+label:after{background:var(--pink);border-color:var(--pink);box-shadow:inset 0 0 0 3px var(--ink)}.choice input:focus-visible+label{outline:2px solid var(--paper);outline-offset:2px}.choice.multi label:after{border-radius:2px}.choice.multi input:checked+label:after{content:"✓";display:grid;place-items:center;color:#fff;font-size:10px;box-shadow:none}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:28px 32px;margin-top:50px}.field{display:block}.field.full{grid-column:1/-1}.field span{display:block;margin-bottom:9px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.09em}.field input,.field textarea{width:100%;border:0;border-bottom:1px solid #555;background:transparent;border-radius:0;padding:12px 0;font-size:clamp(20px,2vw,30px);font-weight:300;outline:none;transition:border-color .2s}.field textarea{min-height:170px;resize:vertical}.field input:focus,.field textarea:focus{border-color:var(--pink)}.field input::placeholder,.field textarea::placeholder{color:#555}.hint{margin-top:12px;color:#777;font-size:12px}.step-actions{display:flex;align-items:center;gap:14px;margin-top:42px}.secondary{border:0;background:none;color:var(--muted);padding:13px 8px}.secondary:hover{color:#fff}
.review{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(35px,7vw,100px);margin-top:48px}.review-list{border-top:1px solid var(--line)}.review-row{padding:15px 0;border-bottom:1px solid var(--line)}.review-row small{display:block;color:var(--pink);text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px}.review-row div{color:#c6c6c3;white-space:pre-wrap}.review-note{color:var(--muted);font-size:14px;max-width:440px}.privacy-note{display:block;max-width:470px;margin-top:18px;color:#727270;font-size:11px;line-height:1.45}.success-mark{font-size:clamp(85px,12vw,170px);color:var(--pink);line-height:.7}.success-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:44px}.success-links a{border-bottom:1px solid #777;padding-bottom:4px}.error{min-height:1.4em;color:#ff79aa;font-size:13px;margin-top:10px}
html[lang="zh-CN"] .step h1,html[lang="zh-CN"] .step h2{font-size:clamp(42px,5.4vw,76px);line-height:.98;letter-spacing:-.045em}
@media(max-width:700px){.nav{height:64px}.brand{width:112px}.form-shell{min-height:calc(100svh - 64px);align-items:start;padding-top:65px}.choices,.fields,.review{grid-template-columns:1fr}.field.full{grid-column:1}.choice label{min-height:72px}.progress-wrap{bottom:16px}.step h1{font-size:16vw}.step h2{font-size:12vw}}
@media(prefers-reduced-motion:reduce){.page:before,.page:after{animation:none}.step,.progress span,.primary,.round{animation:none;transition:none}}
