:root{font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,sans-serif;color:#172238;background:#e9edf5;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}html{min-width:320px;min-height:100%;background:#e9edf5}body{margin:0;min-width:320px;min-height:100vh;-webkit-font-smoothing:antialiased;overscroll-behavior:none}button,input{font:inherit}button{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button:focus-visible,input:focus-visible{outline:3px solid #ffbd16;outline-offset:3px}#root{min-height:100vh}.app-shell{width:min(100%,430px);min-height:100vh;margin:0 auto;overflow:hidden;background:#fffaf0;box-shadow:0 0 40px #1f2c4824}.home-screen{position:relative;min-height:100vh;overflow:hidden;background:radial-gradient(circle at 50% -10%,#fff,transparent 34%),#fffaf0}.hero{position:relative;z-index:1;padding:32px 22px 18px;text-align:center}.eyebrow{margin:0 0 10px;color:#7890b9;font-size:10px;font-weight:800;letter-spacing:.18em}.hero h1{margin:0;font-size:clamp(48px,15vw,68px);font-weight:950;line-height:.98;letter-spacing:-.08em;text-shadow:0 6px 0 rgba(21,87,232,.08)}.hero h1 span{color:#1356df}.hero h1 strong{color:#f34c38;font-weight:inherit}.subtitle{margin:16px 0 18px;color:#263249;font-size:14px;font-weight:800;letter-spacing:.08em}.subtitle b{padding:0 5px;color:#f34c38}.tip{display:inline-flex;align-items:center;gap:9px;max-width:100%;padding:10px 16px;border-radius:999px;color:#263249;background:#fff1cf;font-size:13px;font-weight:700}.tip svg{flex:0 0 auto;color:#ffb600;font-size:20px}.home-content{position:relative;z-index:1;padding:0 22px 30px}.section-block{min-width:0;margin:0 0 24px;padding:0;border:0}.section-block legend,.section-block h2{display:flex;align-items:center;gap:10px;margin:0 0 14px;padding:0;color:#172238;font-size:20px;font-weight:900}.section-block legend>span,.section-block h2>span{width:5px;height:24px;border-radius:9px;background:#1557e8}.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.category-option{display:flex;min-width:0;min-height:60px;align-items:center;gap:10px;justify-content:flex-start;padding:10px 13px;border:2px solid #c6d8f8;border-radius:18px;color:#202a3e;background:#ffffffc2;font-size:15px;font-weight:800;cursor:pointer;transition:transform .12s ease,border-color .12s ease,background .12s ease}.category-option:active{transform:scale(.97)}.category-option.selected{border-color:#1557e8;color:#fff;background:#1557e8;box-shadow:0 8px 16px #1557e838}.category-icon{display:grid;width:28px;height:28px;flex:0 0 28px;place-items:center;border-radius:50%;color:#1557e8;font-size:20px}.selected .category-icon{color:#1557e8;background:#fff}.duration-block h2{margin-bottom:18px}.duration-block h2 strong{margin-left:4px;color:#1557e8;font-size:23px}.duration-slider{width:100%;height:34px;margin:0;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;cursor:pointer}.duration-slider::-webkit-slider-runnable-track{height:7px;border-radius:99px;background:linear-gradient(to right,#1557e8 var(--range-progress),#dfe3ea var(--range-progress))}.duration-slider::-moz-range-track{height:7px;border-radius:99px;background:#dfe3ea}.duration-slider::-moz-range-progress{height:7px;border-radius:99px;background:#1557e8}.duration-slider::-webkit-slider-thumb{width:28px;height:28px;margin-top:-10px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:5px solid #fff;border-radius:50%;background:#1557e8;box-shadow:0 2px 8px #1f2c4847}.duration-slider::-moz-range-thumb{width:20px;height:20px;border:5px solid #fff;border-radius:50%;background:#1557e8;box-shadow:0 2px 8px #1f2c4847}.range-labels{display:flex;justify-content:space-between;color:#687389;font-size:12px;font-weight:700}.start-button{width:100%;min-height:66px;border:0;border-radius:22px;color:#fff;background:#1557e8;box-shadow:0 10px #0b3fad,0 16px 26px #1557e833;font-size:25px;font-weight:950;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}.start-button:active{transform:translateY(6px);box-shadow:0 4px #0b3fad,0 9px 16px #1557e833}.decor{position:absolute;z-index:0;pointer-events:none}.decor-confetti{top:45px;left:18px;color:#ffbd16;font-size:40px;transform:rotate(-18deg)}.decor-star{top:68px;right:24px;color:#ff5a47;font-size:28px;transform:rotate(12deg)}.game-screen{display:grid;width:100%;min-height:100dvh;grid-template-rows:auto 1fr auto;color:var(--game-fg);background:var(--game-bg);transition:background-color .18s ease}.game-header{display:grid;min-height:82px;grid-template-columns:1fr auto 1fr;align-items:center;padding:max(16px,env(safe-area-inset-top)) 18px 12px}.score{justify-self:start}.score span{display:block;font-size:12px;font-weight:700;opacity:.88}.score strong{display:block;font-size:28px;line-height:1}.timer{font-variant-numeric:tabular-nums;font-size:27px;font-weight:900;letter-spacing:.04em}.timer.urgent{animation:pulse .7s ease-in-out infinite alternate}@keyframes pulse{to{transform:scale(1.12);opacity:.72}}.exit-button{display:grid;width:44px;height:44px;justify-self:end;place-items:center;border:2px solid currentColor;border-radius:50%;color:inherit;background:#00000014;font-size:22px;cursor:pointer}.word-stage{display:grid;min-height:0;padding:20px;place-items:center;text-align:center}.current-word{max-width:100%;margin:0;font-size:clamp(54px,16vw,76px);font-weight:950;line-height:1.15;letter-spacing:.02em;overflow-wrap:anywhere;text-shadow:0 4px 0 rgba(0,0,0,.12)}.current-word.word-medium{font-size:clamp(42px,12vw,62px)}.current-word.word-small{font-size:clamp(34px,10vw,52px)}.game-actions{display:grid;grid-template-columns:1fr 1.25fr;gap:12px;padding:14px 18px max(20px,env(safe-area-inset-bottom));background:#0000001a;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.game-actions button{min-height:68px;border:0;border-radius:20px;font-size:21px;font-weight:950;cursor:pointer;transition:transform .1s ease,opacity .1s ease}.game-actions button:active{transform:scale(.97)}.game-actions button:disabled{opacity:.72}.skip-button{color:#172238;background:#fff}.correct-button{color:#17345e;background:#ffcf25}.modal-backdrop{position:fixed;z-index:10;top:0;right:0;bottom:0;left:0;display:grid;padding:22px;place-items:center;color:#172238;background:#0c14248c;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal{width:min(100%,360px);padding:28px 24px 22px;border-radius:28px;background:#fffaf0;box-shadow:0 24px 64px #00000042;text-align:center}.modal h2{margin:0 0 12px;font-size:27px;font-weight:950}.modal-copy p{margin:6px 0 18px;color:#626c7f;font-size:15px;line-height:1.6}.modal-actions{display:grid;gap:10px}.modal-actions button{min-height:52px;border:0;border-radius:16px;font-weight:900;cursor:pointer}.primary-modal-button{color:#fff;background:#1557e8}.secondary-modal-button{color:#1557e8;background:#e9f0ff}.danger-modal-button{color:#fff;background:#ef4f43}.result-number{display:flex;align-items:baseline;justify-content:center;gap:5px;margin:6px 0 -4px}.result-number strong{color:#1557e8;font-size:58px;line-height:1}.result-number span{font-weight:800}.accuracy-row{display:flex;align-items:center;justify-content:space-between;margin:0 0 18px;padding:14px 16px;border-radius:14px;background:#fff0c9;font-weight:800}.accuracy-row strong{color:#ef4f43;font-size:24px}@media(orientation:landscape)and (max-height:560px){.app-shell{width:min(100%,900px)}.game-header{min-height:58px;padding-top:max(8px,env(safe-area-inset-top));padding-bottom:6px}.score strong{display:inline;margin-left:6px;font-size:22px}.score span{display:inline}.current-word{font-size:clamp(54px,10vw,88px)}.game-actions{max-width:680px;width:100%;justify-self:center;padding-top:8px;padding-bottom:max(10px,env(safe-area-inset-bottom));background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none}.game-actions button{min-height:58px}}@media(max-width:350px){.hero,.home-content{padding-inline:16px}.category-option{padding-inline:9px;font-size:14px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}