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height: 40px; border-radius: 50%; border: 1px solid var(--border-subtle); background: var(--color-bg-card); cursor: pointer; font-size: 1.2rem; z-index: 100; transition: all 0.2s; display: flex; align-items: center; justify-content: center; } .theme-toggle:hover { transform: scale(1.1); } * { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: var(--font-sans); background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; } .container { text-align: center; width: 100%; max-width: 500px; } h1 { color: white; margin-bottom: 30px; font-size: 28px; } .display { background: rgba(255, 255, 255, 0.1); padding: 40px; border-radius: 20px; margin-bottom: 30px; } .time { font-size: 64px; font-weight: 700; color: white; font-family: var(--font-mono); letter-spacing: 5px; } .time .ms { font-size: 36px; color: rgba(255, 255, 255, 0.7); } .buttons { display: flex; justify-content: center; 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let laps = [], lapStartTime = 0; function formatTime(ms) { const h = Math.floor(ms / 3600000); const m = Math.floor((ms % 3600000) / 60000); const s = Math.floor((ms % 60000) / 1000); const cs = Math.floor((ms % 1000) / 10); return { main: (h > 0 ? h.toString().padStart(2, "0") + ":" : "") + m.toString().padStart(2, "0") + ":" + s.toString().padStart(2, "0"), ms: "." + cs.toString().padStart(2, "0") }; } function updateDisplay() { const time = formatTime(elapsedTime); document.getElementById("display").textContent = time.main; document.getElementById("displayMs").textContent = time.ms; } function start() { if (!isRunning) { isRunning = true; startTime = Date.now() - elapsedTime; if (lapStartTime === 0) lapStartTime = startTime; interval = setInterval(() => { elapsedTime = Date.now() - startTime; updateDisplay(); }, 10); document.getElementById("startBtn").textContent = "暂停"; document.getElementById("startBtn").className = "btn btn-pause"; document.getElementById("lapBtn").disabled = false; } else { isRunning = false; clearInterval(interval); document.getElementById("startBtn").textContent = "继续"; document.getElementById("startBtn").className = "btn btn-start"; } } function lap() { if (!isRunning) return; const lapTime = elapsedTime; const diff = lapTime - (laps.length > 0 ? laps[laps.length - 1].total : 0); laps.push({ total: lapTime, diff: diff }); renderLaps(); } function reset() { isRunning = false; clearInterval(interval); elapsedTime = 0; lapStartTime = 0; laps = []; updateDisplay(); document.getElementById("laps").innerHTML = ""; document.getElementById("startBtn").textContent = "开�?; document.getElementById("startBtn").className = "btn btn-start"; document.getElementById("lapBtn").disabled = true; } function renderLaps() { if (laps.length === 0) return; const diffs = laps.map((l) => l.diff); const minDiff = Math.min(...diffs); const maxDiff = Math.max(...diffs); document.getElementById("laps").innerHTML = laps .map((lap, i) => { const time = formatTime(lap.total); const diffTime = formatTime(lap.diff); let cls = ""; if (laps.length > 2) { if (lap.diff === minDiff) cls = "lap-best"; else if (lap.diff === maxDiff) cls = "lap-worst"; } return `<div class="lap-item ${cls}"> <span class="lap-number">计次 ${i + 1}</span> <span class="lap-diff">+${diffTime.main}${diffTime.ms}</span> <span class="lap-time">${time.main}${time.ms}</span> </div>`; }) .reverse() .join(""); } updateDisplay(); // Theme toggle function toggleTheme() { const html = document.documentElement; const currentTheme = html.getAttribute("data-theme"); const newTheme = currentTheme === "light" ? "dark" : "light"; html.setAttribute("data-theme", newTheme); document.getElementById("theme-icon").textContent = newTheme === "light" ? "☀�? : "🌙"; localStorage.setItem("theme", newTheme); } // Load saved theme const savedTheme = localStorage.getItem("theme") || "dark"; if (savedTheme === "light") { document.documentElement.setAttribute("data-theme", "light"); document.getElementById("theme-icon").textContent = "☀�?; } </script> </body> </html>