/* --- AIoT & 5G-A 板块样式 --- */
:root {
    --aiot-bg: #0b1120;        /* 深邃夜空黑 */
    --aiot-card: #151e32;      /* 卡片背景 */
    --neon-cyan: #00f3ff;      /* 赛博青 (连接) */
    --neon-green: #00ff9d;     /* 算力绿 (AI) */
    --neon-purple: #bc13fe;    /* 5G紫 */
    --text-white: #e2e8f0;
    --text-mute: #94a3b8;
}
.aiot-sectionaaa {
    background-color: var(--aiot-bg);
}
.aiot-section {
    background-color: var(--aiot-bg);
    color: var(--text-white);
    font-family: 'Inter', 'PingFang SC', sans-serif;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
    /* 背景网格线 */
    background-image:
            linear-gradient(rgba(0, 243, 255, 0.03) 1px, transparent 1px),
            linear-gradient(90deg, rgba(0, 243, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.aiot-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 2;
}

/* 1. 头部发光标题 */
.aiot-hero {
    text-align: center;
    margin-bottom: 5rem;
}
.aiot-badge {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--neon-cyan);
    color: var(--neon-cyan);
    background: rgba(0, 243, 255, 0.1);
    border-radius: 4px;
    font-family: 'Monaco', monospace;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
}
.aiot-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}
.aiot-desc {
    font-size: 1.2rem;
    color: var(--text-mute);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 2. AI + 5G 公式卡片 */
.formula-box {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 5rem;
    flex-wrap: wrap;
}
.f-card {
    background: linear-gradient(145deg, #1a2640, #111827);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 16px;
    width: 300px;
    text-align: center;
    position: relative;
}
.f-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
}
.f-icon { font-size: 3rem; margin-bottom: 1rem; }
.f-h3 { font-size: 1.5rem; font-weight: bold; margin-bottom: 0.5rem; color: white; }
.f-p { color: var(--text-mute); font-size: 0.9rem; }
.f-plus { font-size: 2rem; color: var(--text-mute); font-weight: bold; }

/* 3. 模组硬件展示 (核心区域) */
.module-showcase {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 2rem;
    margin-bottom: 5rem;
}
@media (min-width: 1024px) {
    .module-showcase { grid-template-columns: repeat(3, 1fr); }
}

.mod-card {
    background: rgba(21, 30, 50, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 243, 255, 0.15);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
    position: relative;
}
.mod-card:hover {
    border-color: var(--neon-cyan);
    box-shadow: 0 0 30px rgba(0, 243, 255, 0.1);
    transform: translateY(-5px);
}
.chip-visual {
    width: 100%;
    height: 140px;
    background: #0f1623;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed rgba(255,255,255,0.1);
}
/* 模拟芯片外观 */
.chip-body {
    width: 80px; height: 80px; background: #222; border: 1px solid #444;
    position: relative; display: flex; align-items: center; justify-content: center;
    color: #888; font-size: 0.7rem; font-family: monospace;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
}
.chip-body::after { /* 金手指 */
    content: ''; position: absolute; bottom: -5px; left: 10px; right: 10px; height: 4px;
    background: repeating-linear-gradient(90deg, #d4af37 0, #d4af37 2px, transparent 2px, transparent 4px);
}
.mod-tag {
    position: absolute; top: 1rem; right: 1rem;
    font-size: 0.75rem; padding: 2px 8px; border-radius: 4px;
    font-weight: bold; text-transform: uppercase;
}
.tag-5g { color: var(--neon-purple); border: 1px solid var(--neon-purple); background: rgba(188, 19, 254, 0.1); }
.tag-ai { color: var(--neon-green); border: 1px solid var(--neon-green); background: rgba(0, 255, 157, 0.1); }
.tag-nb { color: var(--neon-cyan); border: 1px solid var(--neon-cyan); background: rgba(0, 243, 255, 0.1); }

.mod-title { font-size: 1.25rem; font-weight: bold; margin-bottom: 0.5rem; color: white; }
.mod-specs { margin-bottom: 1rem; font-size: 0.85rem; color: var(--text-mute); }
.mod-specs span { display: block; margin-bottom: 4px; }
.mod-specs i { width: 20px; color: var(--neon-cyan); text-align: center; }

/* 4. 能力堆栈 (Stack) */
.stack-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
@media (min-width: 768px) { .stack-grid { grid-template-columns: repeat(4, 1fr); } }

.stack-item {
    background: #151e32; padding: 1.5rem; border-radius: 8px;
    border-left: 3px solid var(--text-mute);
    transition: 0.3s;
}
.stack-item:hover { border-left-color: var(--neon-green); background: #1a253a; }
.stack-icon { font-size: 1.5rem; color: white; margin-bottom: 1rem; }
.stack-h4 { color: white; margin-bottom: 0.5rem; font-weight: bold; }
.stack-desc { font-size: 0.85rem; color: var(--text-mute); }

/* 按钮 */
.btn-cyber {
    background: transparent;
    border: 1px solid var(--neon-cyan);
    color: var(--neon-cyan);
    padding: 10px 24px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: 0.3s;
    cursor: pointer;
    display: inline-block;
    margin-top: 1rem;
    text-decoration: none;
}
.btn-cyber:hover {
    background: var(--neon-cyan);
    color: black;
    box-shadow: 0 0 20px var(--neon-cyan);
}
/* --- AIoT 板块新增样式 (Cyber Style Expanded) --- */

/* 1. 技术光谱条 (Spectrum) */
.spectrum-box {
    margin: 4rem 0;
    padding: 2rem;
    background: rgba(21, 30, 50, 0.4);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
}
.spec-bar {
    display: flex; justify-content: space-between; align-items: flex-end;
    height: 100px; position: relative; margin-top: 1rem;
}
/* 横线 */
.spec-bar::before {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0;
    height: 2px; background: #334155; z-index: 0;
}
.spec-point {
    position: relative; z-index: 1; text-align: center; cursor: pointer;
    transition: transform 0.3s; flex: 1;
}
.spec-point:hover { transform: translateY(-5px); }
.spec-dot {
    width: 12px; height: 12px; background: #334155; border-radius: 50%;
    margin: 0 auto 10px; border: 2px solid var(--aiot-bg);
    transition: 0.3s;
}
.spec-point:hover .spec-dot { background: var(--neon-cyan); box-shadow: 0 0 10px var(--neon-cyan); }
.spec-label { font-size: 0.9rem; color: #94a3b8; font-weight: bold; margin-bottom: 5px; }
.spec-sub { font-size: 0.75rem; color: #64748b; }

/* 2. 硬核参数表 (Data Table) */
.tech-table-wrapper {
    overflow-x: auto;
    background: #111827;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 4rem;
}
.tech-table {
    width: 100%; min-width: 800px; border-collapse: collapse; text-align: left;
}
.tech-table th {
    padding: 1.5rem; color: #94a3b8; font-size: 0.9rem; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.tech-table td {
    padding: 1.5rem; color: #e2e8f0; border-bottom: 1px solid rgba(255,255,255,0.05);
}
.tech-table tr:hover td { background: rgba(0, 243, 255, 0.03); }
.hl-col { background: rgba(0, 243, 255, 0.05); border-left: 1px solid rgba(0, 243, 255, 0.1); border-right: 1px solid rgba(0, 243, 255, 0.1); }
.hl-val { color: var(--neon-cyan); font-weight: bold; }

/* 3. 场景 Tab 切换 (Scenario) */
.scene-container { display: flex; gap: 2rem; margin-bottom: 5rem; flex-wrap: wrap; }
.scene-tabs { flex: 1; display: flex; flex-direction: column; gap: 1rem; min-width: 250px; }
.s-tab-btn {
    padding: 1.5rem; background: rgba(255,255,255,0.03); border-radius: 8px;
    cursor: pointer; border: 1px solid transparent; transition: 0.3s;
    display: flex; align-items: center;
}
.s-tab-btn:hover { background: rgba(255,255,255,0.08); }
.s-tab-btn.active {
    background: linear-gradient(90deg, rgba(0,243,255,0.1), transparent);
    border-left: 4px solid var(--neon-cyan);
}
.s-tab-icon { font-size: 1.4rem; margin-right: 1rem; color: #64748b; }
.s-tab-btn.active .s-tab-icon { color: var(--neon-cyan); }
.s-tab-title { font-weight: bold; display: block; margin-bottom: 4px; }
.s-tab-desc { font-size: 0.8rem; color: #64748b; }

.scene-content {
    flex: 2; background: #151e32; border-radius: 12px; padding: 3rem;
    border: 1px solid rgba(255,255,255,0.1); position: relative; overflow: hidden;
    min-width: 300px;
}
.scene-bg-icon {
    position: absolute; right: -20px; bottom: -20px; font-size: 10rem;
    color: rgba(255,255,255,0.03); pointer-events: none;
}

/* 4. 开发者资源 Grid */
.dev-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
@media (min-width: 768px) { .dev-grid { grid-template-columns: repeat(4, 1fr); } }
.dev-item {
    background: rgba(255,255,255,0.03); padding: 1.5rem; border-radius: 8px;
    text-align: center; transition: 0.3s; cursor: pointer;
    border: 1px solid transparent;
}
.dev-item:hover {
    background: rgba(255,255,255,0.08); border-color: var(--neon-purple);
    transform: translateY(-3px);
}
.dev-icon { font-size: 2rem; margin-bottom: 1rem; color: var(--neon-purple); }

.iotviuav{
    position:absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 800px; height: 800px; background: radial-gradient(circle, rgba(0, 243, 255, 0.08) 0%, transparent 70%); z-index: 1; pointer-events: none;
}
.iotviua{
    color:var(--neon-green)
}
.iotviub{
    color:var(--neon-purple)
}
.iotviud{
    border-color:var(--neon-cyan); background: rgba(0,243,255,0.05);
}
.iotviue{
    color: var(--neon-cyan);
}
.iotviuf{
    color:white; font-size:1.2rem; margin-bottom:1rem; text-align:center;
}
.iotviug{
    background: #94a3b8;
}
.iotviuh{
    background: #22c55e;
}
.iotviui{
    background:var(--neon-cyan); width:16px; height:16px; border-color:white;
}
.iotviuk{
    background: var(--neon-purple);
}
.iotviul{
    margin-bottom: 2rem; display: flex; justify-content: space-between; align-items: end;
}
.iotvium{
    font-size: 1.8rem; font-weight: bold;
}
.iotviun{
    color: var(--neon-cyan); text-decoration: none;
}
.iotviuo{
    font-size:1.5rem; color:#fff;
}
.iotviup{
    font-size: 0.85rem; color:#888; margin-bottom: 1.5rem;
}
.iotviuq{
    background:#333;
}
.iotviur{
    font-size: 1.5rem; font-weight: bold; margin-bottom: 1.5rem; margin-top: 4rem;
}
.iotvius{
    font-size: 1.5rem; font-weight: bold; margin-bottom: 1.5rem;
}
.iotviut{
    color:var(--neon-cyan); font-weight:bold; letter-spacing:1px; font-size:0.9rem;
}
.iotviuu{
    position:relative; z-index:2;
}
.iotviuv{
    font-size:2rem; font-weight:bold; margin: 1rem 0;
}
.iotviuw{
    color:#94a3b8; line-height:1.8; margin-bottom:2rem; font-size:1.1rem;
}
.iotviuz{
    display:flex; gap:1rem;
}
.iotviraa{
    font-size: 1.5rem; font-weight: bold; margin-bottom: 2rem;
}
.iotvirab{
    font-weight:bold; color:white;
}
.iotvirad{
    color:#94a3b8; font-size:0.85rem; margin-top:0.5rem;
}
.iotvirae{

}
.iotviraf{

}
.iotvirag{

}