幻影体育：
全域冷热电碳计量与AI节能调度中枢

The FAQ section necessitates addressing: renovation costs/duration for existing venues, compatibility of third-party HVAC/lighting protocols, extreme load prediction for major events, data privacy with local storage, and green building subsidy assistance. Constructing the contact section involves a full-width card with a concise form and real-time contact options; form fields must include venue name, area, contact person, phone, and primary modification needs. A privacy agreement checkbox and anti-spam validation are essential, alongside hover effects. The footer requires a four-column layout, including brand definition, carbon neutrality commitment, site navigation, energy standard compliance, contact information, and copyright details. The footer needs to include the domain name `huanyingruihang.com` in email, and a 400 number for customer support, along with the correct ICP information. Simple JavaScript functions are needed for accordion folding, smooth scrolling, and mobile drawer navigation to ensure responsive user experience. Completed the FAQ section with items covering renovation costs, HVAC/lighting compatibility, load alerts, data privacy, and subsidy assistance. Proceeding with the contact section design; drafted title, subtitle, and form fields for venue information, modification needs, and privacy. Added contact cards with service line, direct phone, and support email. 既有老旧体育场馆进行能耗系统改造，是否需要停电停运？改造成本与工期如何？