* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(180deg, #2c3e50 0%, #1a252f 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
}

.game-container {
    background: linear-gradient(145deg, #3d6b35, #2d5428);
    border-radius: 16px;
    padding: 16px;
    max-width: 380px;
    width: 100%;
    max-height: 95vh;
    overflow: auto;
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.08),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    border: 3px solid #1a1a1a;
    position: relative;
    display: flex;
    flex-direction: column;
}

.game-container::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
}

.color-selector {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-bottom: 12px;
    padding: 10px 14px;
    background: linear-gradient(180deg, #1a1a1a, #0d0d0d);
    border-radius: 8px;
    box-shadow:
        inset 0 2px 4px rgba(0, 0, 0, 0.5),
        0 1px 0 rgba(255, 255, 255, 0.05);
}

.color-btn {
    width: 40px;
    height: 40px;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    box-shadow:
        0 3px 0 rgba(0, 0, 0, 0.4),
        0 4px 6px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
    transition: all 0.1s ease;
}

.color-btn:hover {
    transform: translateY(-1px);
    box-shadow:
        0 4px 0 rgba(0, 0, 0, 0.4),
        0 5px 8px rgba(0, 0, 0, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.color-btn:active {
    transform: translateY(2px);
    box-shadow:
        0 1px 0 rgba(0, 0, 0, 0.4),
        0 2px 4px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.color-num {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 16px;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
    pointer-events: none;
    z-index: 1;
}

.color-btn {
    position: relative;
}

/* 灭灯状态 - 未解锁的颜色 */
.color-btn.disabled {
    opacity: 0.25;
    filter: grayscale(100%) brightness(0.4);
    cursor: not-allowed;
    box-shadow:
        0 1px 0 rgba(0, 0, 0, 0.2),
        0 2px 3px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.color-btn.disabled:hover {
    transform: none;
}

.color-btn[data-color="red"] { background: linear-gradient(145deg, #e74c3c, #c0392b); }
.color-btn[data-color="green"] { background: linear-gradient(145deg, #2ecc71, #27ae60); }
.color-btn[data-color="orange"] { background: linear-gradient(145deg, #e67e22, #d35400); }
.color-btn[data-color="blue"] { background: linear-gradient(145deg, #3498db, #2980b9); }
.color-btn[data-color="yellow"] { background: linear-gradient(145deg, #f1c40f, #d4ac0d); }
.color-btn[data-color="purple"] { background: linear-gradient(145deg, #9b59b6, #8e44ad); }
.color-btn[data-color="cyan"] { background: linear-gradient(145deg, #00bcd4, #0097a7); }

.game-layout {
    display: flex;
    gap: 10px;
    flex: 1;
    min-height: 0;
}

.game-board {
    flex: 1;
    display: flex;
    margin-bottom: 12px;
    gap: 8px;
    background: linear-gradient(180deg, #1a1a1a, #0f0f0f);
    border-radius: 10px;
    padding: 10px;
    box-shadow:
        inset 0 2px 6px rgba(0, 0, 0, 0.6),
        0 1px 0 rgba(255, 255, 255, 0.03);
}

/* 左侧格子区域 - 突出的效果 */
.board-left {
    flex: 1;
    /* background: rgba(70, 70, 70, 0.35); */
    border-radius: 6px;
    padding: 6px;
}

/* 右侧反馈区域 - 凹陷的效果 */
.board-right {
    width: 60px;
    background: rgba(15, 15, 15, 0.6);
    border-radius: 0px 8px 8px 0px;
    padding: 10px;
    margin: -10px -10px -10px 0;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.6), 0 1px 0 rgba(255, 255, 255, 0.02);
    display: flex;
    flex-direction: column;
}

.guess-rows {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.feedback-rows {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.board-row,
.feedback-row {
    display: flex;
    align-items: stretch;
}

.guess-row {
    padding: 0;
}

.feedback-row {
    padding: 0;
    justify-content: center;
    align-items: center;
    min-height: 56px;
}

.slots-container {
    display: flex;
    gap: 6px;
    justify-content: space-between;
    width: 100%;
}

.slot-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 2px;
    flex: 0 0 auto;
    background: rgba(20, 20, 20, 0.5);
    border-radius: 4px;
    box-shadow:
        inset 0 1px 3px rgba(0, 0, 0, 0.6),
        0 1px 0 rgba(255, 255, 255, 0.03);
}

.code-slot {
    width: 38px;
    height: 38px;
    border-radius: 5px;
    background: #151515;
    border: 1px solid #252525;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.8);
    transition: all 0.15s ease;
    position: relative;
}

.code-slot .slot-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
    pointer-events: none;
    z-index: 1;
}

.code-slot.editable {
    cursor: pointer;
}

.code-slot.filled {
    border-color: #333;
}

.code-slot.filled[data-color="red"] {
    background: radial-gradient(circle at 40% 40%, #ff6b5b, #e74c3c 60%, #c0392b);
    box-shadow:
        inset 0 -2px 4px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(231, 76, 60, 0.8),
        0 0 20px rgba(231, 76, 60, 0.4);
}

.code-slot.filled[data-color="blue"] {
    background: radial-gradient(circle at 40% 40%, #5dade2, #3498db 60%, #2980b9);
    box-shadow:
        inset 0 -2px 4px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(52, 152, 219, 0.8),
        0 0 20px rgba(52, 152, 219, 0.4);
}

.code-slot.filled[data-color="green"] {
    background: radial-gradient(circle at 40% 40%, #58d68d, #2ecc71 60%, #27ae60);
    box-shadow:
        inset 0 -2px 4px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(46, 204, 113, 0.8),
        0 0 20px rgba(46, 204, 113, 0.4);
}

.code-slot.filled[data-color="yellow"] {
    background: radial-gradient(circle at 40% 40%, #f9dc6b, #f1c40f 60%, #d4ac0d);
    box-shadow:
        inset 0 -2px 4px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(241, 196, 15, 0.8),
        0 0 20px rgba(241, 196, 15, 0.4);
}

.code-slot.filled[data-color="orange"] {
    background: radial-gradient(circle at 40% 40%, #f5a663, #e67e22 60%, #d35400);
    box-shadow:
        inset 0 -2px 4px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(230, 126, 34, 0.8),
        0 0 20px rgba(230, 126, 34, 0.4);
}

.code-slot.filled[data-color="purple"] {
    background: radial-gradient(circle at 40% 40%, #bb8fce, #9b59b6 60%, #8e44ad);
    box-shadow:
        inset 0 -2px 4px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(155, 89, 182, 0.8),
        0 0 20px rgba(155, 89, 182, 0.4);
}

.code-slot.filled[data-color="cyan"] {
    background: radial-gradient(circle at 40% 40%, #4dd0e1, #00bcd4 60%, #0097a7);
    box-shadow:
        inset 0 -2px 4px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(0, 188, 212, 0.8),
        0 0 20px rgba(0, 188, 212, 0.4);
}

.status-light {
    width: 38px;
    height: 11px;
    border-radius: 3px;
    background: #151515;
    border: 1px solid #252525;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.8);
    transition: all 0.15s ease;
}

.status-light.active {
    animation: pulse-white-light 1.2s ease-in-out infinite;
}

@keyframes pulse-white-light {
    0%, 100% {
        background: #151515;
        box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.8);
    }
    50% {
        background: radial-gradient(circle at 50% 50%, #fff, #e8e8e8 60%, #d0d0d0);
        box-shadow:
            inset 0 1px 2px rgba(0, 0, 0, 0.3),
            0 0 8px rgba(255, 255, 255, 0.6),
            0 0 14px rgba(255, 255, 255, 0.3);
    }
}

.status-light.correct {
    background: radial-gradient(circle at 50% 50%, #58d68d, #2ecc71 60%, #27ae60);
    box-shadow:
        inset 0 -1px 2px rgba(0, 0, 0, 0.2),
        0 0 10px rgba(46, 204, 113, 0.9),
        0 0 18px rgba(46, 204, 113, 0.5);
}

.status-light.wrong {
    background: radial-gradient(circle at 50% 50%, #fff, #e8e8e8 60%, #d0d0d0);
    box-shadow:
        inset 0 1px 2px rgba(0, 0, 0, 0.3),
        0 0 8px rgba(255, 255, 255, 0.6),
        0 0 14px rgba(255, 255, 255, 0.3);
    opacity: 0.6;
}

.row-feedback {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3px;
}

.feedback-point {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #151515;
    border: 1px solid #252525;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.8);
}

.feedback-point.correct {
    background: radial-gradient(circle at 50% 50%, #58d68d, #2ecc71 60%, #27ae60);
    box-shadow:
        inset 0 -1px 2px rgba(0, 0, 0, 0.2),
        0 0 8px rgba(46, 204, 113, 0.9),
        0 0 14px rgba(46, 204, 113, 0.5);
}

.feedback-point.wrong {
    background: radial-gradient(circle at 50% 50%, #fff, #e8e8e8 60%, #d0d0d0);
    box-shadow:
        inset 0 -1px 2px rgba(0, 0, 0, 0.1),
        0 0 6px rgba(255, 255, 255, 0.9),
        0 0 10px rgba(255, 255, 255, 0.5);
    opacity: 0.6;
}

/* 完全错误的颜色 - 深暗色带微光 */
.feedback-point.absent {
    background: radial-gradient(circle at 50% 50%, #3a3a3a, #252525 60%, #1a1a1a);
    box-shadow:
        inset 0 1px 3px rgba(0, 0, 0, 0.8),
        0 0 4px rgba(0, 0, 0, 0.5);
}

.sidebar {
    display: flex;
    flex-direction: row;
    gap: 12px;
    padding: 8px 5px;
    background: transparent;
    margin-top: auto;
    justify-content: center;
}

.submit-btn-slot {
    width: 66px;
    height: 66px;
    border-radius: 50%;
    background: linear-gradient(180deg, #0a0a0a, #151515);
    box-shadow:
        inset 0 1px 2px rgba(0, 0, 0, 0.8),
        inset 0 -1px 0 rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: auto;
}

.status-points {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 5px;
    background: linear-gradient(180deg, #1a1a1a, #0d0d0d);
    border-radius: 5px;
    box-shadow:
        inset 0 2px 4px rgba(0, 0, 0, 0.6),
        0 1px 0 rgba(255, 255, 255, 0.05);
}

.status-point {
    width: 100%;
    height: 5px;
    border-radius: 2px;
    background: linear-gradient(180deg, #2a2a2a, #1a1a1a);
    border: 1px solid #333;
}

.physical-btn {
    width: 100%;
    height: 44px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 700;
    font-size: 10px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    position: relative;
    transition: all 0.1s ease;
}

.physical-btn:active {
    transform: translateY(2px);
}

.new-game-btn {
    background: linear-gradient(180deg, #5cb85c, #4a9a4a, #3d8b3d);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    box-shadow:
        0 3px 0 #2d6b2d,
        0 4px 6px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.new-game-btn:hover {
    background: linear-gradient(180deg, #6fcf6f, #5cb85c, #4a9a4a);
}

.new-game-btn:active {
    box-shadow:
        0 1px 0 #2d6b2d,
        0 2px 3px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.submit-btn {
    width: 54px;
    height: 54px;
    border: none;
    cursor: pointer;
    position: relative;
    border-radius: 50%;
    background:
        /* 外圈：侧面 - 放射状纹理（conic-gradient 实现） */
        conic-gradient(
            from 0deg,
            rgba(0, 0, 0, 0.1) 0deg,
            rgba(0, 0, 0, 0.15) 10deg,
            rgba(255, 255, 255, 0.05) 20deg,
            rgba(0, 0, 0, 0.1) 30deg,
            rgba(0, 0, 0, 0.15) 40deg,
            rgba(255, 255, 255, 0.05) 50deg,
            rgba(0, 0, 0, 0.1) 60deg,
            rgba(0, 0, 0, 0.15) 70deg,
            rgba(255, 255, 255, 0.05) 80deg,
            rgba(0, 0, 0, 0.1) 90deg,
            rgba(0, 0, 0, 0.15) 100deg,
            rgba(255, 255, 255, 0.05) 110deg,
            rgba(0, 0, 0, 0.1) 120deg,
            rgba(0, 0, 0, 0.15) 130deg,
            rgba(255, 255, 255, 0.05) 140deg,
            rgba(0, 0, 0, 0.1) 150deg,
            rgba(0, 0, 0, 0.15) 160deg,
            rgba(255, 255, 255, 0.05) 170deg,
            rgba(0, 0, 0, 0.1) 180deg,
            rgba(0, 0, 0, 0.15) 190deg,
            rgba(255, 255, 255, 0.05) 200deg,
            rgba(0, 0, 0, 0.1) 210deg,
            rgba(0, 0, 0, 0.15) 220deg,
            rgba(255, 255, 255, 0.05) 230deg,
            rgba(0, 0, 0, 0.1) 240deg,
            rgba(0, 0, 0, 0.15) 250deg,
            rgba(255, 255, 255, 0.05) 260deg,
            rgba(0, 0, 0, 0.1) 270deg,
            rgba(0, 0, 0, 0.15) 280deg,
            rgba(255, 255, 255, 0.05) 290deg,
            rgba(0, 0, 0, 0.1) 300deg,
            rgba(0, 0, 0, 0.15) 310deg,
            rgba(255, 255, 255, 0.05) 320deg,
            rgba(0, 0, 0, 0.1) 330deg,
            rgba(0, 0, 0, 0.15) 340deg,
            rgba(255, 255, 255, 0.05) 350deg,
            rgba(0, 0, 0, 0.1) 360deg
        ),
        /* 中间：顶面 - 同心圆效果（radial-gradient 实现） */
        radial-gradient(
            circle at center,
            transparent 0%,
            transparent 55%,
            rgba(0, 0, 0, 0.1) 56%,
            rgba(0, 0, 0, 0.15) 58%,
            transparent 59%,
            transparent 65%,
            rgba(0, 0, 0, 0.1) 66%,
            rgba(0, 0, 0, 0.15) 68%,
            transparent 69%,
            transparent 75%,
            rgba(0, 0, 0, 0.1) 76%,
            rgba(0, 0, 0, 0.15) 78%,
            transparent 79%,
            transparent 85%,
            rgba(0, 0, 0, 0.1) 86%,
            rgba(0, 0, 0, 0.15) 88%,
            transparent 89%
        ),
        /* 底色渐变 */
        linear-gradient(180deg, #ff8c5a, #ff6b3d, #e55a2b);
    background-color: transparent;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.25),
        inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    transition: all 0.1s ease;
}

.submit-btn:hover {
    background:
        conic-gradient(
            from 0deg,
            rgba(0, 0, 0, 0.08) 0deg,
            rgba(0, 0, 0, 0.12) 10deg,
            rgba(255, 255, 255, 0.03) 20deg,
            rgba(0, 0, 0, 0.08) 30deg,
            rgba(0, 0, 0, 0.12) 40deg,
            rgba(255, 255, 255, 0.03) 50deg,
            rgba(0, 0, 0, 0.08) 60deg,
            rgba(0, 0, 0, 0.12) 70deg,
            rgba(255, 255, 255, 0.03) 80deg,
            rgba(0, 0, 0, 0.08) 90deg,
            rgba(0, 0, 0, 0.12) 100deg,
            rgba(255, 255, 255, 0.03) 110deg,
            rgba(0, 0, 0, 0.08) 120deg,
            rgba(0, 0, 0, 0.12) 130deg,
            rgba(255, 255, 255, 0.03) 140deg,
            rgba(0, 0, 0, 0.08) 150deg,
            rgba(0, 0, 0, 0.12) 160deg,
            rgba(255, 255, 255, 0.03) 170deg,
            rgba(0, 0, 0, 0.08) 180deg,
            rgba(0, 0, 0, 0.12) 190deg,
            rgba(255, 255, 255, 0.03) 200deg,
            rgba(0, 0, 0, 0.08) 210deg,
            rgba(0, 0, 0, 0.12) 220deg,
            rgba(255, 255, 255, 0.03) 230deg,
            rgba(0, 0, 0, 0.08) 240deg,
            rgba(0, 0, 0, 0.12) 250deg,
            rgba(255, 255, 255, 0.03) 260deg,
            rgba(0, 0, 0, 0.08) 270deg,
            rgba(0, 0, 0, 0.12) 280deg,
            rgba(255, 255, 255, 0.03) 290deg,
            rgba(0, 0, 0, 0.08) 300deg,
            rgba(0, 0, 0, 0.12) 310deg,
            rgba(255, 255, 255, 0.03) 320deg,
            rgba(0, 0, 0, 0.08) 330deg,
            rgba(0, 0, 0, 0.12) 340deg,
            rgba(255, 255, 255, 0.03) 350deg,
            rgba(0, 0, 0, 0.08) 360deg
        ),
        radial-gradient(
            circle at center,
            transparent 0%,
            transparent 55%,
            rgba(0, 0, 0, 0.08) 56%,
            rgba(0, 0, 0, 0.12) 58%,
            transparent 59%,
            transparent 65%,
            rgba(0, 0, 0, 0.08) 66%,
            rgba(0, 0, 0, 0.12) 68%,
            transparent 69%,
            transparent 75%,
            rgba(0, 0, 0, 0.08) 76%,
            rgba(0, 0, 0, 0.12) 78%,
            transparent 79%,
            transparent 85%,
            rgba(0, 0, 0, 0.08) 86%,
            rgba(0, 0, 0, 0.12) 88%,
            transparent 89%
        ),
        linear-gradient(180deg, #ffa070, #ff8c5a, #ff6b3d);
    background-color: transparent;
}

.submit-btn:active {
    background:
        conic-gradient(
            from 0deg,
            rgba(0, 0, 0, 0.15) 0deg,
            rgba(0, 0, 0, 0.2) 10deg,
            rgba(255, 255, 255, 0.02) 20deg,
            rgba(0, 0, 0, 0.15) 30deg,
            rgba(0, 0, 0, 0.2) 40deg,
            rgba(255, 255, 255, 0.02) 50deg,
            rgba(0, 0, 0, 0.15) 60deg,
            rgba(0, 0, 0, 0.2) 70deg,
            rgba(255, 255, 255, 0.02) 80deg,
            rgba(0, 0, 0, 0.15) 90deg,
            rgba(0, 0, 0, 0.2) 100deg,
            rgba(255, 255, 255, 0.02) 110deg,
            rgba(0, 0, 0, 0.15) 120deg,
            rgba(0, 0, 0, 0.2) 130deg,
            rgba(255, 255, 255, 0.02) 140deg,
            rgba(0, 0, 0, 0.15) 150deg,
            rgba(0, 0, 0, 0.2) 160deg,
            rgba(255, 255, 255, 0.02) 170deg,
            rgba(0, 0, 0, 0.15) 180deg,
            rgba(0, 0, 0, 0.2) 190deg,
            rgba(255, 255, 255, 0.02) 200deg,
            rgba(0, 0, 0, 0.15) 210deg,
            rgba(0, 0, 0, 0.2) 220deg,
            rgba(255, 255, 255, 0.02) 230deg,
            rgba(0, 0, 0, 0.15) 240deg,
            rgba(0, 0, 0, 0.2) 250deg,
            rgba(255, 255, 255, 0.02) 260deg,
            rgba(0, 0, 0, 0.15) 270deg,
            rgba(0, 0, 0, 0.2) 280deg,
            rgba(255, 255, 255, 0.02) 290deg,
            rgba(0, 0, 0, 0.15) 300deg,
            rgba(0, 0, 0, 0.2) 310deg,
            rgba(255, 255, 255, 0.02) 320deg,
            rgba(0, 0, 0, 0.15) 330deg,
            rgba(0, 0, 0, 0.2) 340deg,
            rgba(255, 255, 255, 0.02) 350deg,
            rgba(0, 0, 0, 0.15) 360deg
        ),
        radial-gradient(
            circle at center,
            transparent 0%,
            transparent 55%,
            rgba(0, 0, 0, 0.15) 56%,
            rgba(0, 0, 0, 0.2) 58%,
            transparent 59%,
            transparent 65%,
            rgba(0, 0, 0, 0.15) 66%,
            rgba(0, 0, 0, 0.2) 68%,
            transparent 69%,
            transparent 75%,
            rgba(0, 0, 0, 0.15) 76%,
            rgba(0, 0, 0, 0.2) 78%,
            transparent 79%,
            transparent 85%,
            rgba(0, 0, 0, 0.15) 86%,
            rgba(0, 0, 0, 0.2) 88%,
            transparent 89%
        ),
        linear-gradient(180deg, #e55a2b, #cc4a1b, #b33a0f);
    background-color: transparent;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
}

.mode-switch {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 4px;
    z-index: 10;
}

.mode-track {
    position: relative;
    width: 70px;
    height: 36px;
    background:
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            transparent 2px,
            rgba(255, 255, 255, 0.03) 2px,
            rgba(255, 255, 255, 0.03) 3px
        ),
        linear-gradient(180deg, #0a0a0a, #151515);
    border-radius: 18px;
    box-shadow:
        inset 0 2px 6px rgba(0, 0, 0, 0.8),
        inset 0 -1px 0 rgba(255, 255, 255, 0.02);
    overflow: visible;
}

.mode-icon {
    position: relative;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
}

.mode-icon svg {
    width: 28px;
    height: 28px;
    color: #fff;
}

.mode-hotspot {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    border: none;
    background: transparent;
    cursor: pointer;
    z-index: 4;
}

.mode-hotspot-left { left: 0; }
.mode-hotspot-right { right: 0; }

.mode-thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    width: calc(50% - 3px);
    height: calc(100% - 6px);
    background:
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 2px,
            rgba(0, 0, 0, 0.12) 2px,
            rgba(0, 0, 0, 0.12) 3px
        ),
        linear-gradient(180deg, #666, #555);
    border-radius: 14px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.25),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    transition: left 0.2s ease;
    z-index: 1;
}

.mode-switch.side-mode .mode-thumb {
    left: calc(50% - 3px);
}

.side-feedback {
    margin-top: 8px;
    padding: 8px;
    background: linear-gradient(180deg, #1a1a1a, #0f0f0f);
    border-radius: 6px;
    border: 2px solid #333;
}

.section-label {
    font-size: 8px;
    color: #777;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
    text-align: center;
}

.side-feedback-display {
    display: flex;
    gap: 5px;
    justify-content: center;
    flex-wrap: wrap;
    min-height: 20px;
    align-items: center;
}

.feedback-peg {
    width: 18px;
    height: 9px;
    border-radius: 4px;
    background: #151515;
    border: 1px solid #252525;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.8);
}

.feedback-peg.correct {
    background: radial-gradient(circle at 50% 50%, #58d68d, #2ecc71 60%, #27ae60);
    box-shadow:
        inset 0 -1px 2px rgba(0, 0, 0, 0.2),
        0 0 8px rgba(46, 204, 113, 0.9),
        0 0 14px rgba(46, 204, 113, 0.5);
}

.feedback-peg.misplaced {
    background: radial-gradient(circle at 50% 50%, #fff, #e8e8e8 60%, #d0d0d0);
    box-shadow:
        inset 0 -1px 2px rgba(0, 0, 0, 0.1),
        0 0 6px rgba(255, 255, 255, 0.9),
        0 0 10px rgba(255, 255, 255, 0.5);
}

.feedback-peg.wrong {
    background: #151515;
    border-color: #252525;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: linear-gradient(145deg, #3d6b35, #2d5428);
    padding: 25px 30px;
    border-radius: 14px;
    text-align: center;
    max-width: 340px;
    width: 85%;
    border: 3px solid #1a1a1a;
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    animation: modalSlideIn 0.25s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h2 {
    font-size: 1.3em;
    margin-bottom: 10px;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.modal-content p {
    font-size: 0.9em;
    color: #a8d5a2;
    margin-bottom: 12px;
    line-height: 1.4;
}

.modal-secret {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin: 15px 0;
}

.modal-secret .peg {
    width: 38px;
    height: 38px;
    border-radius: 5px;
    border: 2px solid #444;
    background: linear-gradient(145deg, #1a1a1a, #0a0a0a);
    box-shadow:
        inset 0 2px 4px rgba(0, 0, 0, 0.6),
        0 2px 4px rgba(0, 0, 0, 0.3);
}

.modal-content .btn {
    width: 100%;
    margin-top: 12px;
    padding: 10px 18px;
    border: none;
    border-radius: 6px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    background: linear-gradient(180deg, #5cb85c, #4a9a4a, #3d8b3d);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    box-shadow:
        0 3px 0 #2d6b2d,
        0 4px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.15s ease;
}

.modal-content .btn:hover {
    background: linear-gradient(180deg, #6fcf6f, #5cb85c, #4a9a4a);
}

.modal-content .btn:active {
    transform: translateY(2px);
    box-shadow:
        0 1px 0 #2d6b2d,
        0 2px 3px rgba(0, 0, 0, 0.2);
}

/* Digital-7 字体声明 */
@font-face {
    font-family: 'Digital7';
    src: url('fonts/digital-7.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

/* 底部液晶屏效果 */
.lcd-screen {
    position: relative;
    background: linear-gradient(145deg, #0a0a0a, #151515);
    border-radius: 8px;
    padding: 6px 14px;
    box-shadow:
        inset 0 2px 6px rgba(0, 0, 0, 0.9),
        0 1px 0 rgba(255, 255, 255, 0.05);
    border: 2px solid #333;
}

.lcd-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.lcd-label {
    font-family: 'Courier New', monospace;
    font-size: 7px;
    font-weight: bold;
    color: #3a5a3a;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.lcd-number {
    font-family: 'Digital7', monospace;
    font-size: 32px;
    color: #4ade80;
    text-shadow:
        0 0 6px rgba(74, 222, 128, 0.9),
        0 0 12px rgba(74, 222, 128, 0.6),
        0 0 18px rgba(74, 222, 128, 0.4);
    letter-spacing: 4px;
    line-height: 1;
}

/* 可点击的 LCD 屏幕 */
.lcd-screen.clickable {
    cursor: pointer;
}

/* 扫描线效果 */
.lcd-screen::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 1px,
        rgba(0, 0, 0, 0.15) 1px,
        rgba(0, 0, 0, 0.15) 2px
    );
    pointer-events: none;
    border-radius: 6px;
}

/* ========== 历史记录面板 (悬浮侧边栏) ========== */
.history-panel {
    display: none;
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    width: 180px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-height: 80vh;
    overflow-y: auto;
}

@media (min-width: 600px) {
    .history-panel {
        display: block;
    }

    .history-section {
        margin-bottom: 12px;
    }

    .history-section:last-child {
        margin-bottom: 0;
    }

    .section-title {
        font-size: 11px;
        color: #ccc;
        margin-bottom: 8px;
        font-weight: 600;
    }

    .best-records {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .best-item {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 6px;
        padding: 6px 8px;
        display: flex;
        flex-direction: column;
        gap: 2px;
    }

    .best-level {
        font-size: 10px;
        color: #888;
    }

    .best-attempts {
        font-size: 14px;
        color: #fff;
        font-weight: bold;
    }

    .best-attempts.no-record {
        color: #555;
    }

    .recent-records {
        display: flex;
        flex-direction: column;
        gap: 4px;
        max-height: 300px;
        overflow-y: auto;
    }

    /* 自定义滚动条 - 与游戏界面协调 */
    .recent-records::-webkit-scrollbar {
        width: 6px;
    }

    .recent-records::-webkit-scrollbar-track {
        background: rgba(0, 0, 0, 0.3);
        border-radius: 3px;
    }

    .recent-records::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.15);
        border-radius: 3px;
    }

    .recent-records::-webkit-scrollbar-thumb:hover {
        background: rgba(255, 255, 255, 0.25);
    }

    .record-item {
        display: grid;
        grid-template-columns: 36px 32px 28px 20px;
        align-items: center;
        gap: 4px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 6px;
        padding: 6px 8px;
        font-size: 10px;
        cursor: pointer;
        transition: background 0.15s;
    }

    .record-item:hover {
        background: rgba(255, 255, 255, 0.2);
    }

    .record-item.won .record-result {
        color: #fff;
    }

    .record-item.lost .record-result {
        color: #666;
    }

    .record-date {
        color: #666;
        font-size: 9px;
        cursor: default;
    }

    .record-date:hover {
        color: #999;
    }

    .record-level {
        color: #fff;
        font-weight: 600;
    }

    .record-result {
        font-weight: bold;
    }

    .record-attempts {
        color: #888;
    }

    .no-record {
        color: #555;
        text-align: center;
        font-size: 11px;
        padding: 10px;
    }
}

/* ========== 记录详情弹窗 ========== */
.record-detail {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 12px;
    padding: 16px;
    min-width: 280px;
    max-width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
}

/* 详情弹窗自定义滚动条 */
.record-detail::-webkit-scrollbar {
    width: 6px;
}

.record-detail::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 3px;
}

.record-detail::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}

.record-detail::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

.record-detail.show {
    display: block;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.detail-level {
    font-size: 18px;
    font-weight: bold;
    color: #fff;
}

.detail-result {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.detail-result.won {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.detail-result.lost {
    background: rgba(255, 255, 255, 0.1);
    color: #888;
}

.detail-date {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    margin-bottom: 12px;
}

.date-icon {
    font-size: 14px;
}

.date-value {
    font-size: 14px;
    color: #ccc;
    font-weight: 500;
}

.detail-time {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 10px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
    margin-bottom: 10px;
}

.detail-time .detail-label {
    font-size: 11px;
    color: #888;
}

.detail-time .time-value {
    font-size: 13px;
    color: #ccc;
    font-weight: 500;
}

.detail-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 12px;
}

.stat-item {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
    padding: 8px;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 10px;
    color: #888;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 16px;
    font-weight: bold;
    color: #fff;
}

.detail-secret {
    margin-bottom: 12px;
}

.detail-label {
    display: block;
    font-size: 10px;
    color: #888;
    margin-bottom: 6px;
}

.secret-colors {
    display: flex;
    gap: 6px;
}

.secret-color {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
}

.detail-guesses {
    margin-bottom: 12px;
}

.guess-row-detail {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.guess-row-detail:last-child {
    border-bottom: none;
}

.guess-num {
    width: 16px;
    font-size: 10px;
    color: #666;
}

.guess-colors {
    display: flex;
    gap: 4px;
}

.guess-color {
    width: 20px;
    height: 20px;
    border-radius: 3px;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.guess-feedback {
    margin-left: auto;
    display: flex;
    gap: 4px;
    font-size: 11px;
}

.feedback-correct {
    color: #4ade80;
}

.feedback-misplaced {
    color: #fff;
}

.detail-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.detail-actions button {
    padding: 6px 12px;
    border-radius: 4px;
    border: none;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-delete {
    background: rgba(248, 113, 113, 0.2);
    color: #f87171;
}

.btn-delete:hover {
    background: rgba(248, 113, 113, 0.3);
}

.btn-close {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.btn-close:hover {
    background: rgba(255, 255, 255, 0.2);
}