/**
 * 第三屏 3D 引擎样式
 * 核心逻辑展示区域的样式
 */

.glow-orb-engine {
    position: absolute;
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(22, 93, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: breathe-glow-engine 8s infinite alternate;
    pointer-events: none;
}

.container-engine {
    width: 1400px;
    max-width: 95%;
    margin: 0 auto;
    padding: 80px 0;
    position: relative;
    z-index: 10;
}

.narrative-engine { 
    z-index: 10; 
    padding-right: 20px;
}

.desc-engine {
    line-height: 1.8;
    opacity: 0.8;
}

.eyebrow-engine {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary-engine);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.eyebrow-engine::before { content:''; width: 6px; height: 6px; background: var(--primary-engine); border-radius: 50%; }

.step-list-engine { display: flex; flex-direction: column; gap: 12px; }

.step-card-engine {
    padding: 18px 24px;
    background: rgba(255,255,255,0.4);
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    backdrop-filter: blur(5px);
}
.step-card-engine:hover { background: rgba(255,255,255,0.8); transform: translateX(5px); }
.step-card-engine.active {
    background: #fff;
    border-color: var(--primary-light-engine);
    box-shadow: 0 4px 20px rgba(22, 93, 255, 0.05);
}
.step-card-engine.active::before {
    content: ''; position: absolute; left: 0; top: 12px; bottom: 12px; width: 4px; 
    background: var(--primary-engine); border-radius: 0 4px 4px 0;
}

.step-title-engine { font-weight: 600; color: #0F172A; display: flex; justify-content: space-between; }
.step-subtitle-engine { font-size: 13px; color: #64748B; margin-top: 6px; }

.stage-wrapper-engine {
    position: relative;
    height: 700px;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 2500px;
}

.isometric-engine-engine {
    position: relative;
    width: 700px;
    height: 600px;
    transform-style: preserve-3d;
    transform: rotateX(var(--iso-angle-x)) rotateZ(var(--iso-angle-z));
    transition: transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.layer-chaos-engine {
    position: absolute;
    width: 100%; height: 100%;
    transform: translateZ(-80px);
    pointer-events: none;
}

.chaos-fragment-engine {
    position: absolute;
    background: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    font-family: monospace;
    font-size: 11px;
    color: #64748B;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    border: 1px solid #E2E8F0;
    display: flex; align-items: center; gap: 6px;
    transition: all 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: float-random-engine 6s infinite ease-in-out;
}
.icon-xls-engine { width: 12px; height: 12px; background: #10B981; border-radius: 2px; }

.layer-core-engine {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) translateZ(0);
    width: 500px;
    height: 340px;
    transition: transform 0.8s ease;
}

.master-grid-engine {
    width: 100%; height: 100%;
    background: var(--glass-surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: var(--glass-border);
    border-radius: 20px;
    box-shadow: 
        var(--glass-highlight),
        0 30px 60px -15px rgba(15, 23, 42, 0.15),
        0 0 0 1px rgba(22, 93, 255, 0.05);
    overflow: hidden;
    display: flex; flex-direction: column;
}

.grid-header-engine {
    height: 48px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    display: flex; align-items: center; padding: 0 20px; gap: 10px;
    background: rgba(255,255,255,0.5);
}
.grid-title-engine { font-weight: 700; font-size: 14px; color: #0F172A; display: flex; align-items: center; gap: 8px; }
.grid-title-engine::before { content:'数据表'; font-size:10px; padding:2px 4px; background:var(--primary-light-engine); color:var(--primary-engine); border-radius:4px; font-family:monospace; }

.grid-body-engine { flex: 1; padding: 10px; display: flex; flex-direction: column; gap: 8px; }
.grid-row-engine {
    height: 40px;
    background: rgba(255,255,255,0.4);
    border-radius: 8px;
    display: flex; align-items: center; padding: 0 15px;
    gap: 20px;
    transition: all 0.3s;
}
.grid-row-engine:hover { background: #fff; transform: scale(1.02); box-shadow: 0 4px 12px rgba(0,0,0,0.05); }

.cell-engine { height: 8px; background: #E2E8F0; border-radius: 4px; }
.c-text-engine { width: 80px; }
.c-tag-engine { 
    height: 20px; width: 60px; border-radius: 10px; 
    display: flex; align-items: center; justify-content: center;
    font-size: 10px; font-weight: 600;
}
.tag-blue-engine { background: #E8F3FF; color: #165DFF; }
.tag-green-engine { background: #D1FAE5; color: #059669; }
.tag-orange-engine { background: #FEF3C7; color: #D97706; }
.c-user-engine { width: 24px; height: 24px; border-radius: 50%; background: #CBD5E1; border: 2px solid #fff; }

.layer-output-engine {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    transform: translateZ(120px);
    pointer-events: none;
}

.out-card-kanban-engine {
    position: absolute;
    right: 0px; top: -40px;
    width: 200px; height: 140px;
    background: rgba(255,255,255,0.9);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    padding: 12px;
    transform: translateZ(50px);
    opacity: 0; transition: all 0.6s ease;
}

.out-card-mobile-engine {
    position: absolute;
    left: -20px; bottom: -20px;
    width: 140px; height: 240px;
    background: #1F2937;
    border-radius: 24px;
    border: 4px solid #374151;
    box-shadow: 0 30px 60px rgba(0,0,0,0.12);
    transform: translateZ(80px);
    opacity: 0; transition: all 0.6s ease 0.1s;
    overflow: hidden;
}

.beam-connector-engine {
    position: absolute;
    width: 2px; background: linear-gradient(to top, transparent, var(--primary-engine));
    transform-origin: bottom;
    transform: rotateX(-90deg);
    opacity: 0; transition: all 0.5s;
}

/* 状态切换样式 */
.state-structure .chaos-fragment-engine {
    left: 50% !important; top: 50% !important;
    transform: scale(0); opacity: 0;
    transition-duration: 0.6s;
}
.state-structure .grid-row-engine {
    animation: flash-row-engine 0.5s ease forwards;
}

.state-forms .out-card-kanban-engine {
    opacity: 1; transform: translateZ(50px) translateY(-10px);
}
.state-forms .out-card-mobile-engine {
    opacity: 1; transform: translateZ(80px) translateY(-10px);
}
.state-forms .layer-core-engine {
    transform: translate(-50%, -50%) translateZ(0) scale(0.95);
    filter: blur(1px);
    opacity: 0.7;
}
.state-forms .beam-connector-engine { opacity: 1; height: 100px; }