:root{--bg:#fbfbfd;--bg-elev:#fff;--text:#1d1d1f;--text-secondary:#6e6e73;--text-tertiary:#86868b;--accent:#0071e3;--accent-hover:#0077ed;--border:rgba(0,0,0,.08);--green:#34c759;--amber:#ff9f0a;--red:#ff3b30;--radius:18px;--radius-lg:28px;--shadow-sm:0 1px 3px rgba(0,0,0,.06);--shadow-md:0 8px 30px rgba(0,0,0,.08);--shadow-lg:0 20px 60px rgba(0,0,0,.12);--max-w:1024px;--font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue",Helvetica,Arial,sans-serif}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.47;letter-spacing:-.01em}a{color:inherit;text-decoration:none}::selection{background:rgba(0,113,227,.18)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);font-size:17px;font-weight:500;letter-spacing:-.01em;padding:12px 24px;border-radius:980px;border:none;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);white-space:nowrap}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,113,227,.35)}.btn-ghost{background:rgba(0,0,0,.05);color:var(--text)}.btn-ghost:hover{background:rgba(0,0,0,.09)}.btn-lg{font-size:19px;padding:15px 32px}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}.btn-pro{position:relative;overflow:hidden;color:#fff!important;background:linear-gradient(135deg,#0a2540,#0d47a1 28%,#2196f3 52%,#64b5f6 72%,#0d47a1);background-size:240% 240%;animation:proBtnShine 7s ease-in-out infinite;border:1px solid hsla(0,0%,100%,.22);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.28),0 2px 10px rgba(13,71,161,.32),0 6px 20px rgba(10,37,64,.18)}.btn-pro:before{border-radius:inherit;background:linear-gradient(180deg,hsla(0,0%,100%,.2),hsla(0,0%,100%,.05) 38%,transparent 62%)}.btn-pro:after,.btn-pro:before{content:"";position:absolute;inset:0;pointer-events:none}.btn-pro:after{background:linear-gradient(108deg,transparent 42%,hsla(0,0%,100%,.38) 50%,transparent 58%);transform:translateX(-130%);animation:proBtnGlint 5s ease-in-out infinite}.btn-pro:hover:not(:disabled){transform:translateY(-2px);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.32),0 4px 14px rgba(13,71,161,.4),0 8px 24px rgba(10,37,64,.22)}.btn-pro-icon{display:inline-block;animation:proBtnSpark 3.2s ease-in-out infinite;text-shadow:0 0 6px hsla(0,0%,100%,.55)}@keyframes proBtnShine{0%,to{background-position:0 40%}50%{background-position:100% 60%}}@keyframes proBtnGlint{0%,72%,to{transform:translateX(-130%);opacity:0}78%{opacity:1}88%{transform:translateX(130%);opacity:0}}@keyframes proBtnSpark{0%,to{opacity:.88;transform:scale(1) rotate(0deg)}50%{opacity:1;transform:scale(1.12) rotate(12deg)}}.container{max-width:var(--max-w);margin:0 auto;padding:0 22px}.fade-up{animation:fadeUp .8s cubic-bezier(.16,1,.3,1) both}@keyframes fadeUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.9)}}