:root{color:#183234;font-synthesis:none;text-rendering:optimizelegibility;--ink:#183234;--muted:#687778;--teal:#1e6263;--teal-dark:#173f43;--mint:#dcece6;--mint-light:#eef6f2;--coral:#e66f5a;--coral-light:#fbe9e3;--paper:#fbfaf7;--line:#dfe4df;--shadow:0 20px 60px #203d3e1a;--item-height:56px;background:#f4f2ec;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif}*{box-sizing:border-box}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 5% 10%,#b1d8cf52,#0000 28rem),radial-gradient(circle at 95% 30%,#f4c3b53d,#0000 27rem),#f4f2ec;min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}button{color:inherit}button,select{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible,[tabindex="0"]:focus-visible{outline-offset:3px;outline:3px solid #e66f5a7a}.app-shell{min-height:100vh}.site-header{justify-content:space-between;align-items:center;gap:24px;width:min(1180px,100% - 40px);min-height:94px;margin:0 auto;display:flex}.brand{color:var(--ink);align-items:center;gap:12px;text-decoration:none;display:inline-flex}.brand-mark{background:var(--teal-dark);color:#fff;border-radius:13px;place-items:center;width:42px;height:42px;font-size:20px;font-weight:800;display:grid;box-shadow:0 8px 24px #173f4338}.brand>span:last-child{flex-direction:column;line-height:1.2;display:flex}.brand strong{letter-spacing:.01em;font-size:18px}.brand small{color:var(--muted);margin-top:3px;font-size:11px}.header-note{color:var(--muted);margin:0;font-size:13px}main{width:min(1180px,100% - 40px);margin:0 auto}.tool-switcher{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fbfaf7b8;border:1px solid #2753541c;border-radius:18px;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;max-width:520px;margin-bottom:18px;padding:7px;display:grid}.tool-switcher button{min-height:64px;color:var(--muted);text-align:left;background:0 0;border:0;border-radius:13px;justify-content:flex-start;align-items:center;gap:12px;padding:10px 14px;transition:background .16s,color .16s,transform .16s;display:flex}.tool-switcher button:hover{color:var(--ink)}.tool-switcher button.is-active{color:#fff;background:var(--teal-dark);box-shadow:0 8px 20px #173f432e}.tool-switcher button:active{transform:translateY(1px)}.tool-switcher svg{flex:none}.tool-switcher span{flex-direction:column;gap:2px;display:flex}.tool-switcher strong{font-size:14px}.tool-switcher small{opacity:.75;font-size:10px}.tool-panel{box-shadow:var(--shadow);background:#fbfaf7f0;border:1px solid #27535417;border-radius:30px;padding:clamp(24px,4vw,48px);overflow:hidden}.tool-heading{align-items:flex-start;gap:16px;margin-bottom:34px;display:flex}.tool-icon{border-radius:17px;flex:none;place-items:center;width:52px;height:52px;display:grid}.tool-icon--teal{color:var(--teal-dark);background:var(--mint)}.tool-icon--coral{color:#a83f31;background:var(--coral-light)}.eyebrow{letter-spacing:.16em;font-weight:800;color:var(--coral)!important;margin:0 0 4px!important;font-size:10px!important}.tool-heading h1{letter-spacing:-.035em;margin:0;font-size:clamp(25px,3vw,36px);line-height:1.2}.tool-heading p:not(.eyebrow){color:var(--muted);margin:8px 0 0;font-size:14px;line-height:1.7}.video-layout{grid-template-columns:minmax(300px,360px) minmax(0,1fr);align-items:start;gap:clamp(26px,4vw,52px);display:grid}.input-card,.currency-card,.conversion-list-card{border:1px solid var(--line);background:#fff;border-radius:22px}.input-card{padding:22px}.section-label-row{justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.section-label-row>div{align-items:center;gap:10px;display:flex}.step-number{color:var(--coral);letter-spacing:.08em;font-size:10px;font-weight:800}.section-label-row h2{margin:0;font-size:15px}.duration-chip{color:var(--teal-dark);background:var(--mint-light);border-radius:999px;padding:5px 9px;font-size:11px;font-weight:700}.wheel-group{grid-template-columns:1fr auto 1fr auto 1fr;align-items:end;gap:4px;display:grid}.wheel-field{min-width:0}.wheel-label{color:var(--muted);text-align:center;margin-bottom:7px;font-size:10px;font-weight:700;display:block}.wheel-shell{height:calc(var(--item-height) * 3);background:linear-gradient(#f5f7f5,#0000 35% 65%,#f5f7f5),#fff;border:1px solid #e2e8e4;border-radius:15px;position:relative;overflow:hidden}.wheel-selection{z-index:1;top:var(--item-height);height:var(--item-height);pointer-events:none;background:#dcece6b8;border:1px solid #1e626324;border-radius:10px;position:absolute;left:5px;right:5px}.wheel-list{z-index:2;overscroll-behavior:contain;scrollbar-width:none;touch-action:pan-y;contain:layout paint;-webkit-overflow-scrolling:touch;height:100%;position:relative;overflow-y:auto}.wheel-list::-webkit-scrollbar{display:none}.wheel-spacer,.wheel-option{height:var(--item-height)}.wheel-option{color:#9aa5a3;font-variant-numeric:tabular-nums;-webkit-user-select:none;user-select:none;place-items:center;font-size:19px;transition:color .12s,font-size .12s;display:grid}.wheel-option[aria-selected=true]{color:var(--teal-dark);font-size:26px;font-weight:780}.wheel-colon{color:#aab2af;padding-bottom:67px;font-weight:800}.input-hint{color:#8a9695;text-align:center;margin:12px 0 0;font-size:10px;line-height:1.5}.result-area{min-width:0}.result-controls{justify-content:space-between;align-items:center;gap:16px;min-height:47px;margin-bottom:15px;display:flex}.mode-tabs{background:#edf0ed;border-radius:12px;gap:3px;padding:4px;display:inline-flex}.mode-tabs button{color:var(--muted);background:0 0;border:0;border-radius:9px;padding:8px 13px;font-size:12px;font-weight:700}.mode-tabs button.is-active{color:var(--teal-dark);background:#fff;box-shadow:0 3px 10px #203d3e1a}.live-clock{color:var(--muted);font-variant-numeric:tabular-nums;align-items:center;gap:7px;font-size:12px;display:inline-flex}.live-dot,.status-dot{background:#35a877;border-radius:50%;flex:none;width:7px;height:7px;box-shadow:0 0 0 4px #35a8771f}.target-time-field{color:var(--muted);align-items:center;gap:9px;font-size:11px;font-weight:700;display:flex}.target-time-field input{color:var(--teal-dark);font-variant-numeric:tabular-nums;background:#fff;border:1px solid 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