@import"https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700&display=swap";:root{--bg: #FAF7F5;--surface: #FFFFFF;--primary: #8B6E6E;--primary-dark: #6B5454;--accent: #D4A5A5;--text: #3D2F2F;--text-muted: #6B5454;--border: #E8DDD8;--success: #5C8A4B;--warning: #A87C2C;--danger: #A03939;--radius: 20px;--shadow: 0 4px 12px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04)}body{margin:0;padding:0;background:radial-gradient(circle at 20% 30%,#8B6E6E1a 0%,transparent 50%),radial-gradient(circle at 80% 70%,#D4A5A515 0%,transparent 50%),var(--bg);color:var(--text);font-family:"Noto Serif SC","Source Han Serif SC",思源宋体,Songti SC,STSong,serif;display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:auto}.app-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;min-width:320px;max-width:100%}.game-wrapper{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:25px;display:flex;flex-direction:column;align-items:center;gap:20px;position:relative;max-width:90vw}.game-title{font-family:"Noto Serif SC",思源宋体,serif;font-size:2.2em;color:var(--primary-dark);margin:0 0 10px;position:relative;text-align:center}.cloud-badge{position:absolute;top:-10px;right:-10px;font-size:.7em;color:var(--text-muted);background:var(--border);padding:3px 8px;border-radius:8px;white-space:nowrap}.game-info-bar{display:flex;justify-content:space-between;align-items:center;width:100%;max-width:400px;margin-bottom:15px;gap:10px}.counter-box{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:8px 12px;display:flex;align-items:center;gap:8px;font-family:"Noto Serif SC",monospace;font-size:1.2em;color:var(--text);min-width:80px;justify-content:center;box-shadow:inset 0 1px 3px #0000001a}.timer-icon{width:20px;height:20px;stroke:var(--text)}.reset-button{background:linear-gradient(145deg,var(--surface),var(--bg));border:1px solid var(--border);border-radius:50%;width:48px;height:48px;display:flex;justify-content:center;align-items:center;cursor:pointer;box-shadow:4px 4px 8px #00000014,-4px -4px 8px #fff9;transition:all .2s ease;flex-shrink:0}.reset-button:hover{box-shadow:2px 2px 4px #0000000f,-2px -2px 4px #ffffff80}.difficulty-selector{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap;justify-content:center}.difficulty-button{background:linear-gradient(145deg,var(--bg),var(--border));border:1px solid var(--border);border-radius:8px;padding:8px 15px;font-family:"Noto Serif SC",serif;font-size:.9em;color:var(--text-muted);cursor:pointer;box-shadow:var(--shadow);transition:all .2s ease}.difficulty-button:hover{background:linear-gradient(145deg,var(--border),var(--bg));color:var(--text)}.difficulty-button.active{background:var(--primary);color:var(--surface);border-color:var(--primary-dark);box-shadow:inset 0 2px 4px #0003}.high-score-display{font-size:1em;color:var(--text-muted);margin-bottom:20px;font-family:"Noto Serif SC",serif}.board-grid{display:grid;border:1px solid var(--border);background-color:var(--border);box-shadow:inset 0 0 5px #0003}.cell{width:30px;height:30px;display:flex;justify-content:center;align-items:center;font-family:"Noto Serif SC",monospace;font-weight:700;font-size:1.1em;cursor:pointer;-webkit-user-select:none;user-select:none;border:1px solid var(--border)}.cell-unrevealed{background:linear-gradient(145deg,var(--surface),var(--bg));box-shadow:2px 2px 5px #0000000d,-2px -2px 5px #fff6;border-top:2px solid var(--surface);border-left:2px solid var(--surface);border-bottom:2px solid var(--text-muted);border-right:2px solid var(--text-muted)}.cell-unrevealed:active{box-shadow:inset 1px 1px 3px #0003;border-top:2px solid var(--text-muted);border-left:2px solid var(--text-muted);border-bottom:2px solid var(--surface);border-right:2px solid var(--surface)}.cell-revealed{background-color:var(--bg);box-shadow:inset 1px 1px 3px #0003;border:1px solid var(--border)}.cell-mine-revealed,.cell-mine-unrevealed{background-color:var(--danger);color:var(--surface)}.cell-wrong-flag{background-color:var(--warning);color:var(--surface)}.cell-number{font-weight:700}.number-1{color:#00f}.number-2{color:green}.number-3{color:red}.number-4{color:navy}.number-5{color:maroon}.number-6{color:teal}.number-7{color:#000}.number-8{color:gray}.game-over-modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#0003;display:flex;justify-content:center;align-items:center;z-index:1000}.game-over-modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px;text-align:center;max-width:400px;width:90%;position:relative;display:flex;flex-direction:column;gap:15px}.modal-close-button{position:absolute;top:15px;right:15px;background:none;border:none;cursor:pointer;color:var(--text-muted)}.game-over-modal h2{font-family:"Noto Serif SC",serif;color:var(--primary-dark);margin-top:0;font-size:1.8em}.game-over-modal p{font-size:1.1em;color:var(--text);margin:5px 0}.game-over-modal .new-high-score{color:var(--success);font-weight:700;font-size:1.2em}.modal-restart-button{background:var(--primary);color:var(--surface);border:none;border-radius:8px;padding:12px 25px;font-family:"Noto Serif SC",serif;font-size:1.1em;cursor:pointer;transition:background-color .2s ease;box-shadow:var(--shadow)}.modal-restart-button:hover{background:var(--primary-dark)}.cloud-toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);padding:12px 20px;border-radius:8px;font-family:"Noto Serif SC",serif;font-size:.9em;color:var(--surface);box-shadow:var(--shadow);z-index:1001;white-space:nowrap}.cloud-toast.success{background:var(--success)}.cloud-toast.error{background:var(--danger)}.cloud-toast.loading{background:var(--text-muted)}