/* ===== 架构图 ===== */
#architecture {
    padding: 120px 0;
    position: relative;
    z-index: 1;
}

.arch-diagram {
    max-width: 900px;
    margin: 0 auto;
}

.arch-layer {
    border-radius: 16px;
    padding: 24px;
    border: 1px solid var(--border);
}

.arch-core {
    background: rgba(6, 182, 212, 0.05);
    border-color: rgba(6, 182, 212, 0.2);
}

.arch-label {
    text-align: center;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--cyan-light);
}

.arch-modules {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.arch-module {
    padding: 10px 20px;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
}

.arch-connector {
    height: 40px;
    width: 2px;
    background: linear-gradient(to bottom, var(--cyan), var(--blue));
    margin: 0 auto;
    position: relative;
}

.arch-connector::before,
.arch-connector::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--cyan);
}

.arch-connector::before { top: -6px; }
.arch-connector::after { bottom: -6px; }

.arch-plugins {
    background: var(--bg-glass);
}

.arch-plugin-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.arch-plugin {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
}

.arch-plugin:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.arch-plugin-title {
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 12px;
    color: var(--cyan-light);
}

.arch-plugin-items {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

@media (max-width: 768px) {
    .arch-plugin-grid { grid-template-columns: repeat(2, 1fr); }
}