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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #E0F5F8;
    color: #1A3C42;
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== 海沫·虹彩泡泡 - 动态泡泡海洋背景 ===== */
.bubble-ocean-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background-color: #E0F5F8;
    overflow: hidden;
}

/* 流动光纹 - 淡珊瑚 */
.bubble-ocean-bg::before {
    content: '';
    position: absolute;
    top: 20%;
    left: -30%;
    width: 160%;
    height: 25%;
    background: linear-gradient(90deg, transparent 20%, rgba(255, 160, 140, 0.3) 40%, rgba(255, 200, 170, 0.2) 60%, transparent 80%);
    filter: blur(90px);
    animation: lightShift1 18s ease-in-out infinite;
}

/* 流动光纹 - 淡金 */
.bubble-ocean-bg::after {
    content: '';
    position: absolute;
    top: 50%;
    left: -20%;
    width: 140%;
    height: 25%;
    background: linear-gradient(90deg, transparent 25%, rgba(255, 225, 170, 0.35) 50%, transparent 75%);
    filter: blur(85px);
    animation: lightShift2 22s ease-in-out infinite;
}

/* 流动光纹 - 淡蓝 */
.bubble-ocean-bg .light-blue {
    position: absolute;
    top: 70%;
    left: -25%;
    width: 150%;
    height: 30%;
    background: linear-gradient(90deg, transparent 30%, rgba(160, 215, 240, 0.35) 50%, transparent 70%);
    filter: blur(80px);
    animation: lightShift3 20s ease-in-out infinite;
}

/* 漂浮泡泡集合 */
.bubble-ocean-bg .floating-bubbles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}
.bubble-ocean-bg .floating-bubbles::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 15% 80%, rgba(255,255,255,0.5) 8px, transparent 9px),
        radial-gradient(circle at 85% 20%, rgba(255,180,170,0.4) 12px, transparent 13px),
        radial-gradient(circle at 70% 70%, rgba(170,220,240,0.5) 6px, transparent 7px),
        radial-gradient(circle at 30% 40%, rgba(180,230,200,0.4) 10px, transparent 11px),
        radial-gradient(circle at 60% 10%, rgba(255,255,255,0.6) 7px, transparent 8px);
    animation: bubblesRise 10s linear infinite;
}
.bubble-ocean-bg .floating-bubbles::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 90%, rgba(255,220,200,0.4) 14px, transparent 15px),
        radial-gradient(circle at 80% 60%, rgba(200,230,255,0.5) 9px, transparent 10px),
        radial-gradient(circle at 50% 30%, rgba(255,255,255,0.5) 11px, transparent 12px),
        radial-gradient(circle at 10% 10%, rgba(170,210,230,0.4) 6px, transparent 7px),
        radial-gradient(circle at 90% 85%, rgba(255,190,180,0.5) 13px, transparent 14px);
    animation: bubblesRise 13s linear infinite reverse;
}

@keyframes lightShift1 {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(8%); }
}
@keyframes lightShift2 {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-6%); }
}
@keyframes lightShift3 {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(4%); }
}
@keyframes bubblesRise {
    0% { transform: translateY(0); opacity: 0.6; }
    100% { transform: translateY(-30px); opacity: 0; }
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    padding: 10px;
}

@media (min-width: 768px) {
    .games-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
}

@media (min-width: 1024px) {
    .games-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
}

/* ===== 海沫·虹彩泡泡 - 泡沫状卡片样式 ===== */
.game-card,
.related-game {
    background: rgba(255,255,255,0.45);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(160,215,240,0.4);
    border-radius: 26px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(160,215,240,0.18), 0 8px 30px rgba(255,180,170,0.15);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    animation: cardBubbleFloat 7s ease-in-out infinite;
}

/* 卡片每7秒轻微上下浮动并倾斜，如同水面浮叶 */
@keyframes cardBubbleFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        box-shadow: 0 8px 30px rgba(160,215,240,0.18), 0 8px 30px rgba(255,180,170,0.15);
    }
    25% {
        transform: translateY(-6px) rotate(0.5deg);
        box-shadow: 0 10px 34px rgba(160,215,240,0.24), 0 10px 34px rgba(255,180,170,0.2);
    }
    50% {
        transform: translateY(3px) rotate(-0.3deg);
        box-shadow: 0 9px 32px rgba(160,215,240,0.21), 0 9px 32px rgba(255,180,170,0.17);
    }
    75% {
        transform: translateY(-4px) rotate(0.2deg);
        box-shadow: 0 10px 33px rgba(160,215,240,0.23), 0 10px 33px rgba(255,180,170,0.19);
    }
}

.game-card:hover,
.related-game:hover {
    transform: translateY(-8px) scale(1.03) rotate(0deg);
    box-shadow: 0 16px 48px rgba(160,215,240,0.32), 0 16px 48px rgba(255,180,170,0.28);
    border-color: rgba(160,215,240,0.65);
}

.game-card:hover img,
.related-game:hover img {
    transform: scale(1.08);
}

/* 触摸反馈 - 泡泡涟漪 + 虹彩光泽扫过 */
.game-card:active,
.related-game:active {
    border-color: #80D8C0;
    box-shadow: 0 0 0 2px #80D8C0, 0 12px 36px rgba(160,215,240,0.35), 0 12px 36px rgba(255,180,170,0.28), inset 0 0 30px rgba(255,255,255,0.9);
}

.game-card:active::before,
.related-game:active::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(160,215,240,0.5) 0%, rgba(180,230,200,0.4) 40%, transparent 70%);
    z-index: 10;
    animation: bubbleRipple 0.7s ease-out forwards;
    pointer-events: none;
    transform: translate(-50%, -50%) scale(0);
}

@keyframes bubbleRipple {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(2); opacity: 0; }
}

hr, .divider {
    display: none;
}

hr.dashed, .divider-dashed {
    display: none;
}

.related-games-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

@media (min-width: 768px) {
    .related-games-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
}

button {
    transition: all 0.3s ease;
    background: linear-gradient(135deg, rgba(160,215,240,0.35) 0%, rgba(180,230,200,0.28) 100%);
    border: 1px solid rgba(160,215,240,0.6);
    color: #1A3C42;
}

button:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(160,215,240,0.4);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    transition: all 0.3s ease;
}

::selection {
    background: rgba(160, 215, 240, 0.35);
    color: #1A3C42;
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(224,245,248,0.8);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, rgba(160,215,240,0.7), rgba(180,230,200,0.7));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, rgba(180,230,200,0.8), rgba(160,215,240,0.7));
}