* { margin: 0; padding: 0; box-sizing: border-box; font-family: "Inter", Arial, Helvetica, sans-serif; } .timeline-section { width: 100%; min-height: 560px; background: radial-gradient(circle at 20% 20%, rgba(54, 195, 176, 0.08), transparent 26%), radial-gradient(circle at 80% 10%, rgba(20, 120, 200, 0.10), transparent 28%), linear-gradient(135deg, #1f2428 0%, #2a3035 50%, #24292d 100%); color: #ffffff; position: relative; overflow: hidden; padding: 70px 50px 90px; } .timeline-section::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px); background-size: 34px 34px; pointer-events: none; opacity: 0.55; } .container { max-width: 1280px; margin: 0 auto; position: relative; z-index: 2; } /* 主内容区：左侧大年份 + 右侧事件 */ .timeline-main { display: grid; grid-template-columns: 260px 1fr; gap: 70px; align-items: flex-start; margin-bottom: 90px; } .year-display { font-size: 148px; font-weight: 800; line-height: 1; letter-spacing: -4px; background: linear-gradient(90deg, #36c3b0 0%, #40b8cc 45%, #5499e5 100%); -webkit-background-clip: text; background-clip: text; color: transparent; white-space: nowrap; } .event-list { padding-top: 28px; display: flex; flex-direction: column; gap: 18px; } .event-item { display: flex; align-items: flex-start; gap: 14px; font-size: 19px; line-height: 1.7; color: #e7ecf0; } .event-dot { width: 10px; height: 10px; border-radius: 50%; background: #36c3b0; margin-top: 9px; flex-shrink: 0; box-shadow: 0 0 0 4px rgba(54, 195, 176, 0.18); } .empty-tip { color: #9aa5ad; font-style: italic; } /* 底部时间轴 */ .timeline-nav { display: flex; align-items: center; gap: 18px; } .arrow-btn { width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.18); background: rgba(255, 255, 255, 0.04); color: #d8e1e7; font-size: 20px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.25s ease; flex-shrink: 0; } .arrow-btn:hover { border-color: #36c3b0; color: #36c3b0; background: rgba(54, 195, 176, 0.08); } .arrow-btn:disabled { opacity: 0.35; cursor: not-allowed; } .timeline-track { flex: 1; position: relative; height: 2px; background: linear-gradient( 90deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06) ); display: flex; justify-content: space-between; align-items: center; padding: 0 22px; } .year-node { position: relative; display: flex; flex-direction: column; align-items: center; cursor: pointer; background: transparent; border: none; color: inherit; } .node-circle { width: 14px; height: 14px; border-radius: 50%; border: 2px solid #9aa5ad; background: #2a3035; transition: all 0.25s ease; z-index: 2; } .year-node.active .node-circle { border-color: #36c3b0; background: #36c3b0; box-shadow: 0 0 0 5px rgba(54, 195, 176, 0.18), 0 0 18px rgba(54, 195, 176, 0.45); } .year-label { position: absolute; top: -30px; font-size: 14px; color: #9aa5ad; white-space: nowrap; transition: color 0.25s ease; } .year-node.active .year-label { color: #ffffff; font-weight: 600; } .year-node:hover .year-label { color: #cfd8de; } /* 淡入动画 */ .fade-in { animation: fadeIn 0.4s ease; } @keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } } /* 移动端适配 */ @media (max-width: 900px) { .timeline-main { grid-template-columns: 1fr; gap: 30px; } .year-display { font-size: 96px; } .timeline-section { padding: 50px 24px 70px; } .year-label { font-size: 12px; top: -24px; } }

2006

Shenzhen UTL was established and commenced mass production

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const milestones = [ { year: "2006", events: [ "Shenzhen UTL was established and commenced mass production" ] }, { year: "2010", events: [ "Phase‑I of the Ji’an UTL Industrial Park went into operation, with a daily capacity of 500,000 cells" ] }, { year: "2012", events: [ "Awarded the National High‑Tech Enterprise qualification and ISO 14001 certification" ] }, { year: "2013", events: [ "Partnered with Audi to develop 85°C lithium‑polymer power battery products" ] }, { year: "2018", events: [ "Launched mass production of 18650 lithium‑ion cells" ] }, { year: "2019", events: [ "Groundbreaking for the new industrial park; the facility was commissioned in Q2 2021" ] }, { year: "2020", events: [ "Obtained ISO 13485 Medical Device Quality Management System Certification" ] }, { year: "2023", events: [ "Ji’an UTL was selected as a national‑level \"Little Giant\" enterprise for SRDI.", "Successful iteration of the ERP system and official launch of the MES system." ] }, { year: "2024", events: [] }, { year: "2025", events: [] }, { year: "2026", events: [] } ]; let currentIndex = 0; const yearDisplay = document.getElementById("yearDisplay"); const eventList = document.getElementById("eventList"); const timelineTrack = document.getElementById("timelineTrack"); const prevBtn = document.getElementById("prevBtn"); const nextBtn = document.getElementById("nextBtn"); // 渲染底部时间轴节点 function renderTrack() { timelineTrack.innerHTML = ""; milestones.forEach((item, index) => { const node = document.createElement("button"); node.className = "year-node"; if (index === currentIndex) node.classList.add("active"); node.innerHTML = ` ${item.year} `; node.addEventListener("click", () => { currentIndex = index; updateTimeline(); }); timelineTrack.appendChild(node); }); } // 更新主内容 function updateTimeline() { const current = milestones[currentIndex]; yearDisplay.textContent = current.year; yearDisplay.classList.remove("fade-in"); void yearDisplay.offsetWidth; yearDisplay.classList.add("fade-in"); eventList.innerHTML = ""; if (current.events.length === 0) { const emptyItem = document.createElement("div"); emptyItem.className = "event-item fade-in"; emptyItem.innerHTML = ` Upcoming milestone `; eventList.appendChild(emptyItem); } else { current.events.forEach((event, i) => { const eventItem = document.createElement("div"); eventItem.className = "event-item"; if (i === 0) eventItem.classList.add("fade-in"); eventItem.innerHTML = ` ${event} `; eventList.appendChild(eventItem); }); } renderTrack(); updateArrowButtons(); } // 更新箭头按钮状态 function updateArrowButtons() { prevBtn.disabled = currentIndex === 0; nextBtn.disabled = currentIndex === milestones.length - 1; } // 上一年 prevBtn.addEventListener("click", () => { if (currentIndex > 0) { currentIndex--; updateTimeline(); } }); // 下一年 nextBtn.addEventListener("click", () => { if (currentIndex < milestones.length - 1) { currentIndex++; updateTimeline(); } }); // 初始化 updateTimeline();