/* ============================================
   飞轮储能UPS系统 - 工业风主题
   天印制造
   ============================================ */

html { scroll-behavior: smooth; }
body { overflow-x: hidden; background: #1a1c1e; }

/* ----- 微妙的暗纹背景 ----- */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.005) 2px, rgba(255,255,255,0.005) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255,255,255,0.003) 2px, rgba(255,255,255,0.003) 4px);
    opacity: 0.5;
}

/* ----- 滚动条 ----- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: #1a1c1e; }
::-webkit-scrollbar-thumb { background: #3d4045; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

/* ----- 导航栏 ----- */
.nav-link.active { color: #f59e0b !important; background: rgba(245, 158, 11, 0.08); }

/* ----- 动画 ----- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.animate-fadeIn { animation: fadeIn 0.8s ease-out forwards; }
.animate-slideUp { animation: slideUp 0.8s ease-out forwards; opacity: 0; }

.reveal { opacity: 0; transform: translateY(25px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============ 工业风卡片通用 ============ */
.metric-card {
    background: linear-gradient(180deg, #25282c, #1f2226);
    border: 1px solid #33363b;
    border-radius: 4px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}
.metric-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3), inset 0 0 0 1px rgba(245,158,11,0.1);
    transform: translateY(-2px);
}

.info-card, .arch-card, .workflow-card, .spec-card,
.comm-feature, .code-feature-card, .chart-container,
.perf-summary-card, .safety-card, .info-section-card,
.team-card, .pioneer-card {
    background: linear-gradient(180deg, #25282c, #1f2226);
    border: 1px solid #33363b;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.info-card:hover, .arch-card:hover, .workflow-card:hover,
.spec-card:hover, .comm-feature:hover, .code-feature-card:hover,
.chart-container:hover, .perf-summary-card:hover, .safety-card:hover,
.info-section-card:hover, .team-card:hover, .pioneer-card:hover {
    border-color: #555;
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    transform: translateY(-2px);
}

.info-card { padding: 2rem; }
.arch-card { padding: 1.5rem; border-left: 3px solid #f59e0b; }
.workflow-card { padding: 1.5rem; width: 220px; text-align: center; }
.workflow-icon {
    width: 56px; height: 56px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; margin: 0 auto;
    background: #2a2d32;
}
.spec-card { padding: 1.5rem; }
.spec-card-header {
    display: flex; align-items: center; gap: 1rem;
    margin-bottom: 1rem; padding-bottom: 0.75rem;
    border-bottom: 1px solid #33363b;
}
.spec-card-body { display: flex; flex-direction: column; gap: 0.4rem; }
.spec-item { display: flex; justify-content: space-between; align-items: center; padding: 0.2rem 0; font-size: 0.8rem; }
.spec-item span:first-child { color: #8a8d91; }
.spec-item span:last-child { color: #c8ccd0; text-align: right; }
.comm-feature { padding: 1.25rem; border-radius: 4px; }
.comm-feature:hover { transform: translateX(3px); }
.code-feature-card { padding: 1.5rem; text-align: center; border-radius: 4px; }
.chart-container { padding: 1.5rem; border-radius: 4px; }
.chart-container canvas { max-height: 280px; }
.perf-summary-card { padding: 1.25rem; text-align: center; border-radius: 4px; }
.safety-card { padding: 1.25rem; text-align: center; border-radius: 4px; }
.info-section-card { padding: 1.5rem; border-radius: 4px; }
.team-card { padding: 1.5rem; text-align: center; border-radius: 4px; }
.pioneer-card { padding: 1.5rem; text-align: center; border-radius: 4px; }

/* ============ 图片占位 ============ */
.img-placeholder {
    background: #2a2d32;
    border: 1px dashed #44474b;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #555;
    font-size: 0.8rem;
    overflow: hidden;
    position: relative;
    transition: all 0.3s;
}
.img-placeholder:hover {
    border-color: #f59e0b;
    color: #f59e0b;
    background: #2d3035;
}
.img-placeholder i {
    transition: all 0.3s;
}
.img-placeholder:hover i {
    transform: scale(1.1);
}

/* 照片头像占位 */
.photo-space {
    position: relative;
    overflow: hidden;
    cursor: default;
    background: #2a2d32;
    border: 1.5px dashed #44474b;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: all 0.3s;
}
.photo-space:hover {
    border-color: #f59e0b;
}

/* 先行者头像 */
.pioneer-avatar {
    width: 72px; height: 72px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: flex; align-items: center; justify-content: center;
    background: #2a2d32;
    border: 2px solid #44474b;
    color: #666;
    transition: all 0.3s ease;
}
.pioneer-card:hover .pioneer-avatar {
    border-color: #f59e0b;
}

.team-avatar {
    width: 72px; height: 72px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: flex; align-items: center; justify-content: center;
    background: #2a2d32;
    border: 2px solid #44474b;
    color: #666;
    transition: all 0.3s ease;
}
.team-card:hover .team-avatar {
    border-color: #f59e0b;
}

/* ----- 回顶按钮 ----- */
#back-to-top.visible { opacity: 1 !important; visibility: visible !important; }

/* ----- 分区标题 ----- */
.section-heading h2 { position: relative; display: inline-block; }
.section-heading h2::after {
    content: '';
    position: absolute; bottom: -6px; left: 50%;
    transform: translateX(-50%);
    width: 50px; height: 2px;
    background: #f59e0b;
    border-radius: 1px;
}

/* ----- 表格 ----- */
table { border-collapse: collapse; }
tbody tr:hover td { background: rgba(245,158,11,0.03); }
thead th { color: #f59e0b !important; }

/* ============ 工业风动态特效 ============ */

/* Hero 扫描线 */
#hero::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 5;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        rgba(0,0,0,0.03) 3px,
        rgba(0,0,0,0.03) 4px
    );
    animation: scanlineMove 8s linear infinite;
}
@keyframes scanlineMove {
    from { transform: translateY(0); }
    to { transform: translateY(4px); }
}

/* 工业边框脉冲 */
@keyframes industrialPulse {
    0%, 100% { border-color: #33363b; box-shadow: 0 0 0 rgba(245,158,11,0); }
    50% { border-color: #f59e0b; box-shadow: 0 0 8px rgba(245,158,11,0.3), 0 0 20px rgba(245,158,11,0.1); }
}
.metric-card {
    animation: industrialPulse 4s ease-in-out infinite;
}
.metric-card:nth-child(2) { animation-delay: 1.3s; }
.metric-card:nth-child(3) { animation-delay: 2.6s; }

/* 金属光泽扫过 */
@keyframes metalShimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
.spec-card:hover {
    background: linear-gradient(110deg, #25282c 30%, #2d3035 45%, #25282c 60%);
    background-size: 200% 100%;
    animation: metalShimmer 1.5s ease-in-out;
}

/* 图表容器扫描线效果 */
@keyframes chartGlow {
    0%, 100% { box-shadow: inset 0 0 0 rgba(245,158,11,0); }
    50% { box-shadow: inset 0 0 30px rgba(245,158,11,0.08); }
}
.chart-container {
    animation: chartGlow 5s ease-in-out infinite;
}
.chart-container:nth-child(odd) { animation-delay: 2.5s; }

/* 工业指示灯闪烁 */
@keyframes indicatorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* 安全卡片边框呼吸 */
@keyframes safetyBreath {
    0%, 100% { border-color: #33363b; box-shadow: inset 0 0 0 rgba(245,158,11,0); }
    50% { border-color: rgba(245,158,11,0.5); box-shadow: inset 0 0 10px rgba(245,158,11,0.1); }
}
.safety-card {
    animation: safetyBreath 5s ease-in-out infinite;
}
.safety-card:nth-child(2) { animation-delay: 1s; }
.safety-card:nth-child(3) { animation-delay: 2s; }
.safety-card:nth-child(4) { animation-delay: 3s; }
.safety-card:nth-child(5) { animation-delay: 4s; }

/* 性能卡片的数值跳动感 */
@keyframes valuePulse {
    0%, 100% { text-shadow: 0 0 0 transparent; }
    50% { text-shadow: 0 0 18px rgba(245,158,11,0.5), 0 0 36px rgba(245,158,11,0.2); }
}
.perf-summary-card .text-3xl {
    animation: valuePulse 2.5s ease-in-out infinite;
}

/* 工业齿轮旋转（仅装饰用） */
@keyframes gearSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.gear-icon {
    animation: gearSpin 20s linear infinite;
}

/* Hero 下箭头工业风 */
@keyframes industrialBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}
#hero .fa-chevron-down {
    animation: industrialBounce 2s ease-in-out infinite;
    color: #f59e0b;
}

/* ----- 移动端 ----- */
@media (max-width: 768px) {
    /* 全局 */
    html { font-size: 14px; }
    body { text-align: center; }

    /* Section */
    section { padding: 2.5rem 0 !important; }

    /* 导航 */
    #navbar .h-16 { height: 3rem; }
    #navbar .text-lg { font-size: 0.9rem; }
    #mobile-menu a { padding: 0.6rem 1rem; font-size: 0.85rem; }

    /* Hero */
    #hero { min-height: 100vh; padding: 4rem 0.75rem 1.5rem; display: flex; align-items: center; }
    #hero h1 { font-size: 1.6rem !important; line-height: 1.25 !important; margin-bottom: 0.75rem !important; }
    #hero .text-xl { font-size: 0.85rem !important; max-width: 92%; margin-left: auto; margin-right: auto; }
    #hero #hero-subtitle { font-size: 0.8rem !important; max-width: 92%; margin-bottom: 1rem !important; }
    #hero .mb-8 { margin-bottom: 0.75rem; }
    #hero .mb-12 { margin-bottom: 1rem; }
    #hero .gap-x-3 { gap: 0.35rem; }
    #hero .px-4.py-1\\.5 { padding: 0.25rem 0.6rem; font-size: 0.65rem; }

    /* 指标卡：移动端保持3列 */
    #hero .grid.grid-cols-1.sm\\:grid-cols-3 {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 0.35rem;
    }
    .metric-card { padding: 0.5rem 0.35rem; }
    .metric-card .text-4xl { font-size: 1.15rem !important; }
    .metric-card .text-lg { font-size: 0.65rem !important; }
    .metric-card .text-sm { font-size: 0.6rem !important; }
    .metric-card .text-3xl { font-size: 1.15rem !important; }

    /* 标题 */
    .section-heading h2 { font-size: 1.35rem !important; }
    .section-heading p { font-size: 0.8rem; max-width: 90%; margin-left: auto; margin-right: auto; }

    /* 通用卡片 */
    .info-card, .arch-card, .spec-card, .comm-feature,
    .code-feature-card, .safety-card, .perf-summary-card,
    .info-section-card, .team-card, .pioneer-card {
        padding: 0.85rem;
        border-radius: 3px;
    }
    .info-card h3, .arch-card h4, .comm-feature h4, .spec-card-header h3 { font-size: 0.9rem !important; }
    .info-card p, .arch-card p, .comm-feature p { font-size: 0.75rem; }

    /* 架构卡片 */
    .arch-card { text-align: left; }

    /* 工作流 */
    .workflow-card { width: 100%; max-width: 240px; padding: 1rem; margin: 0 auto; }

    /* 规格卡 */
    .spec-card { text-align: left; }
    .spec-card-header .w-14 { width: 2.5rem; height: 2.5rem; }
    .spec-card-header i { font-size: 1.1rem !important; }

    /* 图表 */
    .chart-container { padding: 0.75rem; }
    .chart-container canvas { max-height: 180px; }
    .chart-container h3 { font-size: 0.85rem !important; }

    /* 表格 */
    table { font-size: 0.7rem; }
    th, td { padding: 0.4rem 0.5rem !important; }

    /* 图片占位 */
    .img-placeholder { min-height: 80px; font-size: 0.7rem; }

    /* 网格 */
    .lg\\:grid-cols-2, .lg\\:grid-cols-3, .lg\\:grid-cols-4, .lg\\:grid-cols-5 {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

    /* 页脚 */
    footer { padding: 1.5rem 1rem; text-align: center; }
    footer .text-sm { font-size: 0.75rem; }

    /* 回顶 */
    #back-to-top { bottom: 0.75rem; right: 0.75rem; width: 2.25rem; height: 2.25rem; }

    /* 流程图纵向 */
    .flex-wrap.items-center.justify-center { flex-direction: column; gap: 0.5rem; }

    /* 间距紧缩 */
    .mb-6 { margin-bottom: 0.75rem; }
    .mb-8 { margin-bottom: 1rem; }
    .mb-10 { margin-bottom: 1.25rem; }
    .mb-12 { margin-bottom: 1.5rem; }
    .mb-16 { margin-bottom: 1.75rem; }
    .mt-6 { margin-top: 0.75rem; }
    .mt-8 { margin-top: 1rem; }
    .mt-10 { margin-top: 1.25rem; }
    .mt-12 { margin-top: 1.5rem; }
    .mt-16 { margin-top: 1.75rem; }
    .gap-4 { gap: 0.5rem; }
    .gap-6 { gap: 0.6rem; }
    .gap-8 { gap: 0.75rem; }
    .gap-12 { gap: 1rem; }
    .space-y-2 > * + * { margin-top: 0.35rem; }
    .space-y-3 > * + * { margin-top: 0.5rem; }
    .space-y-4 > * + * { margin-top: 0.6rem; }
    .space-y-5 > * + * { margin-top: 0.75rem; }
    .py-20 { padding-top: 2.5rem !important; padding-bottom: 2.5rem !important; }

    /* 统计条 */
    .grid-cols-2 { grid-template-columns: repeat(2, 1fr); gap: 0.4rem; }

    /* 内容居中 */
    .max-w-7xl { padding-left: 0.75rem; padding-right: 0.75rem; }
}
@media (max-width: 480px) {
    html { font-size: 13px; }

    #hero { min-height: 100vh; padding: 3.5rem 0.5rem 1rem; }
    #hero h1 { font-size: 1.35rem !important; }
    #hero #hero-subtitle { font-size: 0.72rem !important; }

    .metric-card { padding: 0.4rem 0.2rem; }
    .metric-card .text-4xl { font-size: 1rem !important; }
    .metric-card .text-3xl { font-size: 1rem !important; }

    .grid-cols-2, .sm\\:grid-cols-2 { grid-template-columns: 1fr !important; }

    /* 保持Hero指标卡3列 */
    #hero .grid.grid-cols-1.sm\\:grid-cols-3 { grid-template-columns: repeat(3, 1fr) !important; gap: 0.25rem; }

    .img-placeholder { min-height: 70px; }
    .chart-container canvas { max-height: 150px; }

    section { padding: 2rem 0 !important; }
    .max-w-7xl { padding-left: 0.5rem; padding-right: 0.5rem; }
}

/* ============================================
   交互效果样式
   ============================================ */

/* ----- 1. 鼠标跟随能量光晕 ----- */
#cursor-glow {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle,
        rgba(245, 158, 11, 0.12) 0%,
        rgba(245, 158, 11, 0.06) 25%,
        rgba(245, 158, 11, 0.02) 50%,
        transparent 70%
    );
    transform: translate(-50%, -50%);
    transition: opacity 0.4s;
    will-change: left, top;
}

/* ----- 2. 3D 透视卡片倾斜 ----- */
.tilt-container {
    perspective: 800px;
    transform-style: preserve-3d;
}
.tilt-inner {
    transition: transform 0.1s ease-out;
    will-change: transform;
}
.tilt-inner.restoring {
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.tilt-glow {
    position: absolute;
    inset: 0;
    border-radius: 4px;
    pointer-events: none;
    transition: opacity 0.3s;
    opacity: 0;
    background: radial-gradient(ellipse at var(--mx) var(--my),
        rgba(245, 158, 11, 0.15) 0%,
        transparent 60%
    );
    z-index: 1;
}

/* ----- 3. 飞轮转速模拟器 ----- */
.flywheel-sim {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}
.flywheel-sim canvas {
    cursor: grab;
    border-radius: 50%;
    transition: filter 0.3s;
}
.flywheel-sim canvas:active {
    cursor: grabbing;
}
.flywheel-sim .sim-label {
    font-size: 0.85rem;
    color: #9ca3af;
    text-align: center;
}
.flywheel-sim .sim-label .rpm-val {
    font-size: 1.5rem;
    font-weight: 700;
    color: #f59e0b;
    font-variant-numeric: tabular-nums;
}
.flywheel-sim .sim-label .energy-val {
    font-size: 1.1rem;
    font-weight: 600;
    color: #22c55e;
    font-variant-numeric: tabular-nums;
}
.flywheel-sim .sim-hint {
    font-size: 0.7rem;
    color: #555;
    transition: opacity 0.6s;
}

/* ----- 4. 磁吸按钮效果 ----- */
.magnetic-target {
    transition: transform 0.15s ease-out;
    will-change: transform;
}
.magnetic-target .magnetic-inner {
    transition: transform 0.15s ease-out;
}

/* ----- 5. 滚动视差 (Hero背景) ----- */
.parallax-layer {
    will-change: transform;
}

/* ----- 6. 打字机效果 ----- */
.typewriter-cursor {
    display: inline-block;
    width: 2px;
    height: 1.1em;
    background: #f59e0b;
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: cursorBlink 0.8s step-end infinite;
}
@keyframes cursorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ----- 飞轮模拟器移动端适配 ----- */
@media (max-width: 768px) {
    .flywheel-sim { margin-top: 0.75rem !important; gap: 0.4rem; }
    .flywheel-sim canvas {
        width: 140px !important;
        height: 140px !important;
    }
    .flywheel-sim .sim-label { font-size: 0.75rem; }
    .flywheel-sim .sim-label .rpm-val { font-size: 1.1rem; }
    .flywheel-sim .sim-label .energy-val { font-size: 0.85rem; }
    .flywheel-sim .sim-hint { font-size: 0.65rem; }
    #cursor-glow { display: none; }
}
@media (max-width: 480px) {
    .flywheel-sim { margin-top: 0.5rem !important; }
    .flywheel-sim canvas {
        width: 110px !important;
        height: 110px !important;
    }
    .flywheel-sim .sim-label { font-size: 0.7rem; }
    .flywheel-sim .sim-label .rpm-val { font-size: 1rem; }
    .flywheel-sim .sim-label .energy-val { font-size: 0.75rem; }
}