:root {
    /* 跟随站点主题（--el-color-primary 系列 + --web-loader-bg-dark 深色背景，由 main.css 定义） */
    --primary: var(--el-color-primary, #4d97ff);
    --secondary: var(--el-color-primary-light-3, #7ab0ff);
    --accent: var(--el-color-primary-dark-2, #3375d6);
}
#loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(circle at 50% 42%,
            color-mix(in srgb, var(--primary) 12%, transparent) 0%,
            transparent 72%),
        linear-gradient(160deg,
            var(--el-color-primary-light-9, #f5f9ff),
            var(--el-color-primary-light-7, #d1e4ff));
    z-index:100000;
    }

.neo-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    filter: drop-shadow(0 0 24px color-mix(in srgb, var(--primary) 30%, transparent));
}

/* 积木行：5 块主题色发光积木依次弹跳，像排队 */
.brick-row {
    display: flex;
    gap: 12px;
    margin-bottom: 26px;
}

.brick {
    width: 18px;
    height: 18px;
    border-radius: 5px;
    background: color-mix(in srgb, var(--accent) 90%, transparent);
    border: 1px solid color-mix(in srgb, var(--primary) 45%, transparent);
    box-shadow:
        0 0 14px color-mix(in srgb, var(--primary) 45%, transparent),
        0 4px 10px color-mix(in srgb, var(--accent) 25%, transparent),
        inset 0 0 8px color-mix(in srgb, #fff 30%, transparent);
    animation: brick-bounce 0.9s cubic-bezier(0.34, 1.56, 0.64, 1) infinite;
}

.brick:nth-child(1) {
    background: color-mix(in srgb, var(--accent) 92%, transparent);
    animation-delay: 0s;
}

.brick:nth-child(2) {
    background: color-mix(in srgb, var(--primary) 90%, transparent);
    animation-delay: 0.09s;
}

.brick:nth-child(3) {
    background: color-mix(in srgb, var(--accent) 80%, transparent);
    animation-delay: 0.18s;
}

.brick:nth-child(4) {
    background: color-mix(in srgb, var(--primary) 90%, transparent);
    animation-delay: 0.27s;
}

.brick:nth-child(5) {
    background: color-mix(in srgb, var(--accent) 92%, transparent);
    animation-delay: 0.36s;
}

@keyframes brick-bounce {
    0% {
        transform: translateY(0) scale(1);
    }
    22% {
        transform: translateY(-18px) scale(1.1);
    }
    48% {
        transform: translateY(0) scale(0.92);
    }
    64% {
        transform: translateY(-7px) scale(1.03);
    }
    82% {
        transform: translateY(0) scale(0.98);
    }
    100% {
        transform: translateY(0) scale(1);
    }
}

/* 进度指示：主题深色文字，浅底清晰带光晕 */
.neo-progress {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--accent);
    font: 500 14px/1 'Segoe UI', sans-serif;
    letter-spacing: 2px;
    text-shadow: 0 0 12px color-mix(in srgb, var(--primary) 35%, transparent);
}

.progress-text::after {
    content: '🚀 正在启动创意引擎...';
    animation: typing 1.4s steps(18) infinite;
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

/* 细进度条：主题色渐变扫动 */
.progress-bar {
    margin-top: 16px;
    width: 180px;
    height: 3px;
    border-radius: 2px;
    background: color-mix(in srgb, var(--primary) 30%, transparent);
    overflow: hidden;
    position: relative;
}

.progress-bar::before {
    content: "";
    position: absolute;
    top: 0;
    left: -40%;
    width: 40%;
    height: 100%;
    border-radius: 2px;
    background: linear-gradient(90deg,
            var(--accent),
            var(--primary));
    box-shadow: 0 0 8px color-mix(in srgb, var(--primary) 50%, transparent);
    animation: bar-sweep 1.1s ease-in-out infinite;
}

@keyframes bar-sweep {
    0% {
        left: -40%;
    }
    100% {
        left: 100%;
    }
}