:root{--bg-top:#0f3d3e;--bg-bottom:#07211f;--card:#fbfaf7;--ink:#1a2421;--ink-soft:#5c6b66;--line:#e7e3da;--box:#f3f1ea;--accent:#0f3d3e;--accent-ink:#fff;--gold:#b08d3f;--error:#b3261e;--error-bg:#fbe9e7;--warn:#8a6d1f;--warn-bg:#fbf3da;--ok:#1f7a4d;--radius:18px;--radius-sm:12px;--shadow:0 18px 50px rgba(7,33,31,.28)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{min-height:100dvh;background:linear-gradient(165deg,var(--bg-top) 0,var(--bg-bottom) 100%);background-attachment:fixed;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Hiragino Kaku Gothic ProN,Hiragino Sans,Noto Sans JP,Segoe UI,Meiryo,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}.page{min-height:100dvh;align-items:center;justify-content:center;padding:24px 16px calc(24px + env(safe-area-inset-bottom))}.card,.page{display:flex;flex-direction:column;gap:18px}.card{width:100%;max-width:440px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 22px 26px}.brand{text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px;padding-bottom:4px;border-bottom:1px solid var(--line)}.brand__badge{display:inline-block;font-size:11px;letter-spacing:.16em;font-weight:700;color:var(--gold);border:1px solid var(--gold);border-radius:999px;padding:4px 12px}.brand__name{margin:2px 0 0;font-size:19px;font-weight:700;line-height:1.5;letter-spacing:.01em}.brand__sub{margin:0;font-size:13px;color:var(--ink-soft);letter-spacing:.04em}.kv{margin:0;display:flex;flex-direction:column}.kv--boxed{background:var(--box);border-radius:var(--radius-sm);padding:4px 16px}.kv__row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}.kv--boxed .kv__row:last-child{border-bottom:none}.kv__row dt{color:var(--ink-soft);font-size:13px;white-space:nowrap}.kv__row dd{margin:0;font-size:14px;font-weight:600;text-align:right;word-break:break-all}.kv__addr{font-size:12px;font-weight:500}.kv__row--amount dd{font-size:20px;font-weight:700}.kv__row--amount .unit{font-size:13px;color:var(--ink-soft);font-weight:600}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.section-title{margin:0;font-size:15px;font-weight:700;text-align:center;letter-spacing:.02em}.field{display:flex;flex-direction:column;gap:8px}.field__label{font-size:13px;font-weight:600;color:var(--ink-soft)}.field__input{display:flex;align-items:center;background:#fff;border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:0 16px;transition:border-color .15s ease,box-shadow .15s ease}.field__input:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(15,61,62,.12)}.field__input input{flex:1 1;border:none;outline:none;background:transparent;font-size:28px;font-weight:700;color:var(--ink);padding:16px 0;min-width:0;letter-spacing:.01em}.field__unit{font-size:14px;font-weight:700;color:var(--ink-soft);margin-left:10px}.field__error{font-size:12px;color:var(--error)}.field__hint{font-size:12px;color:var(--ink-soft);text-align:right}.account{display:flex;align-items:center;gap:10px;background:var(--box);border-radius:999px;padding:10px 14px;font-size:13px;font-weight:600}.account__dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(31,122,77,.18)}.account__action{margin-left:auto;background:none;border:none;color:var(--ink-soft);font-size:12px;font-weight:600;cursor:pointer;padding:4px 6px;text-decoration:underline}.btn{display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:54px;border-radius:var(--radius-sm);font-size:16px;font-weight:700;letter-spacing:.02em;cursor:pointer;border:1.5px solid transparent;transition:transform .06s ease,opacity .15s ease,background .15s ease;text-decoration:none}.btn:active{transform:translateY(1px)}.btn--primary{background:var(--accent);color:var(--accent-ink)}.btn--primary:disabled{opacity:.4;cursor:not-allowed}.btn--ghost{background:transparent;color:var(--accent);border-color:var(--line)}.note{margin:0;font-size:12px;color:var(--ink-soft);line-height:1.6}.note--center{text-align:center}.banner{font-size:12.5px;line-height:1.6;border-radius:var(--radius-sm);padding:12px 14px}.banner code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11.5px;background:rgba(0,0,0,.06);padding:1px 4px;border-radius:4px}.banner--warn{background:var(--warn-bg);color:var(--warn)}.banner--error{background:var(--error-bg);color:var(--error)}.result{flex-direction:column;text-align:center;gap:14px;padding:8px 0}.result,.result__icon{display:flex;align-items:center}.result__icon{width:64px;height:64px;border-radius:50%;justify-content:center;font-size:32px;font-weight:700;color:#fff;background:var(--ok)}.result__icon--error{background:var(--error)}.result__title{margin:0;font-size:18px;font-weight:700}.result__amount{margin:0;font-size:30px;font-weight:800;letter-spacing:.01em}.result__amount span{font-size:14px;color:var(--ink-soft);font-weight:700}.result__message{margin:0;font-size:13.5px;color:var(--ink-soft);line-height:1.7}.result .kv{width:100%;background:var(--box);border-radius:var(--radius-sm);padding:4px 16px;margin:4px 0}.result .kv__row:last-child{border-bottom:none}.link{color:var(--accent);font-size:13px;font-weight:600;text-decoration:underline}.spinner{width:46px;height:46px;border-radius:50%;border:4px solid var(--line);border-top-color:var(--accent);animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.footer{text-align:center;color:hsla(0,0%,100%,.65);font-size:11.5px;max-width:440px;line-height:1.6}.footer p{margin:0}@media (min-width:480px){.card{padding:34px 30px 30px}.brand__name{font-size:21px}}