:root{--tc-primary-color: #8a2be2;--tc-primary-light: #9370db;--tc-primary-dark: #7b68ee;--tc-accent-color: #06b6d4;--tc-success-color: #10b981;--tc-bg-color: #ffffff;--tc-surface-color: #f8fafc;--tc-surface-hover: #f1f5f9;--tc-text-color: #0f172a;--tc-text-secondary: #475569;--tc-text-muted: #64748b;--tc-border-color: #e2e8f0;--tc-border-light: #f1f5f9;--tc-shadow: 0 1px 3px rgba(0, 0, 0, .04);--tc-shadow-hover: 0 4px 16px rgba(0, 0, 0, .08);--tc-shadow-card: 0 2px 8px rgba(0, 0, 0, .06);--tc-border-radius: 12px;--tc-border-radius-sm: 8px;--tc-border-radius-lg: 16px;--tc-transition: all .2s cubic-bezier(.4, 0, .2, 1)}@media (prefers-color-scheme: dark){:root{--tc-primary-color: #9370db;--tc-primary-light: #ba55d3;--tc-primary-dark: #8a2be2;--tc-accent-color: #22d3ee;--tc-success-color: #34d399;--tc-bg-color: #0f172a;--tc-surface-color: #1e293b;--tc-surface-hover: #334155;--tc-text-color: #f8fafc;--tc-text-secondary: #cbd5e1;--tc-text-muted: #94a3b8;--tc-border-color: #334155;--tc-border-light: #1e293b;--tc-shadow: 0 1px 3px rgba(0, 0, 0, .3);--tc-shadow-hover: 0 4px 16px rgba(0, 0, 0, .4);--tc-shadow-card: 0 2px 8px rgba(0, 0, 0, .2)}}#timestamp-converter-root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,SF Pro Display,Roboto,sans-serif;background:var(--tc-bg-color);color:var(--tc-text-color);padding:24px 20px;box-sizing:border-box;line-height:1.6;font-weight:400;letter-spacing:-.01em}#timestamp-converter-root *{box-sizing:border-box}.tc-container{max-width:900px;margin:0 auto;padding:0}.tc-header{text-align:center;margin-bottom:48px}.tc-title{font-size:clamp(28px,5vw,42px);font-weight:600;color:var(--tc-text-color);margin:0 0 12px;letter-spacing:-.02em;line-height:1.2}.tc-subtitle{color:var(--tc-text-secondary);font-size:18px;font-weight:400;margin:0;letter-spacing:-.01em}.tc-main{display:grid;gap:32px;grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.tc-card{background:var(--tc-surface-color);border-radius:var(--tc-border-radius);padding:32px;box-shadow:var(--tc-shadow);border:1px solid var(--tc-border-color);transition:var(--tc-transition);position:relative}.tc-card:hover{box-shadow:var(--tc-shadow-hover);border-color:var(--tc-primary-color)}.tc-card-title{font-size:20px;font-weight:600;margin:0 0 24px;color:var(--tc-text-color);display:flex;align-items:center;gap:12px;letter-spacing:-.01em}.tc-icon{width:22px;height:22px;fill:var(--tc-primary-color);opacity:.8}.tc-input-group{margin-bottom:24px}.tc-input-group:last-child{margin-bottom:0}.tc-label{display:block;margin-bottom:8px;font-weight:600;color:var(--tc-text-color);font-size:15px;letter-spacing:-.01em}.tc-input-hint{font-size:13px;color:var(--tc-text-muted);margin-bottom:12px;padding:8px 12px;background:var(--tc-border-light);border-radius:var(--tc-border-radius-sm);border-left:3px solid var(--tc-accent-color)}.tc-input{width:100%;padding:14px 16px;border:1px solid var(--tc-border-color);border-radius:var(--tc-border-radius-sm);background:var(--tc-bg-color);color:var(--tc-text-color);font-size:16px;font-weight:400;transition:var(--tc-transition);outline:none;letter-spacing:-.01em;-moz-appearance:none;appearance:none;-webkit-appearance:none;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%}.tc-input:focus{border-color:var(--tc-primary-color);box-shadow:0 0 0 3px #8a2be214}.tc-button{background:linear-gradient(135deg,var(--tc-primary-color) 0%,var(--tc-primary-light) 100%);color:#fff;border:none;padding:8px 16px;border-radius:var(--tc-border-radius-sm);font-size:13px;font-weight:500;cursor:pointer;transition:var(--tc-transition);width:auto;letter-spacing:-.01em;box-shadow:0 1px 4px #6366f126;position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:6px;align-self:flex-start;-webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;-webkit-user-select:none}.tc-button:hover{background:linear-gradient(135deg,var(--tc-primary-dark) 0%,var(--tc-primary-color) 100%);box-shadow:0 2px 8px #6366f140;transform:translateY(-1px)}.tc-button:active{transform:translateY(0) scale(.98)}.tc-result-container{position:relative;display:flex;align-items:flex-start;gap:12px}.tc-result-wrapper{flex:1;background:var(--tc-bg-color);border:1px solid var(--tc-border-light);border-radius:var(--tc-border-radius-sm);padding:18px 20px;transition:var(--tc-transition)}.tc-result-main{font-family:SF Mono,Monaco,Menlo,Ubuntu Mono,monospace;font-size:15px;font-weight:500;color:var(--tc-text-color);word-break:break-all;line-height:1.4;letter-spacing:0;margin-bottom:8px}.tc-result-relative{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,SF Pro Display,Roboto,sans-serif;font-size:13px;font-weight:400;color:var(--tc-text-muted);line-height:1.3;letter-spacing:-.01em;padding-top:4px;border-top:1px solid var(--tc-border-light)}.tc-result{background:var(--tc-bg-color);border:1px solid var(--tc-border-light);border-radius:var(--tc-border-radius-sm);padding:18px 20px;font-family:SF Mono,Monaco,Menlo,Ubuntu Mono,monospace;font-size:15px;font-weight:400;color:var(--tc-text-color);word-break:break-all;min-height:24px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;flex:1;transition:var(--tc-transition);letter-spacing:0;text-align:center}.tc-result:empty:before,.tc-result[data-placeholder]:before,.tc-result-main:empty:before,.tc-result-main[data-placeholder]:before{content:attr(data-placeholder);color:var(--tc-text-muted);font-size:14px;font-weight:400;font-style:italic}.tc-copy-btn{background:var(--tc-surface-color);border:1px solid var(--tc-border-light);border-radius:var(--tc-border-radius);padding:12px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;min-width:44px;height:44px;box-shadow:0 1px 3px #0000000d;flex-shrink:0;position:relative;overflow:hidden;will-change:transform,background-color;-webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;-webkit-user-select:none}.tc-copy-btn:hover{background:var(--tc-primary-color);border-color:var(--tc-primary-color);box-shadow:0 2px 8px #6366f140;transform:translateY(-1px)}.tc-copy-btn.tc-copied{background:var(--tc-success-color);border-color:var(--tc-success-color);transform:scale(1.02)}.tc-copy-btn.tc-copied:hover{background:#059669;border-color:#059669}.tc-copy-icon{width:20px;height:20px;fill:var(--tc-text-muted);transition:var(--tc-transition)}.tc-copy-btn:hover .tc-copy-icon,.tc-copy-btn.tc-copied .tc-copy-icon{fill:#fff}.tc-copy-text{display:none;font-size:14px;font-weight:500;color:var(--tc-text-muted);transition:var(--tc-transition);margin-left:6px;letter-spacing:-.01em}.tc-copy-btn:hover .tc-copy-text,.tc-copy-btn.tc-copied .tc-copy-text{color:#fff}.tc-copy-btn-with-text{gap:6px;align-items:center;justify-content:center}.tc-timestamp-item{margin-bottom:16px}.tc-timestamp-item:last-child{margin-bottom:0}.tc-timestamp-label{display:block;font-size:13px;font-weight:500;color:var(--tc-text-secondary);margin-bottom:6px;text-transform:uppercase;letter-spacing:.05em}.tc-result-compact{background:var(--tc-bg-color);border:1px solid var(--tc-border-light);border-radius:var(--tc-border-radius-sm);padding:14px 18px;font-family:SF Mono,Monaco,Menlo,Ubuntu Mono,monospace;font-size:14px;font-weight:400;color:var(--tc-text-color);word-break:break-all;min-height:20px;display:flex;align-items:center;transition:var(--tc-transition);letter-spacing:0}.tc-current-time-card{background:var(--tc-surface-color);border:1px solid var(--tc-border-color);border-radius:var(--tc-border-radius-lg);padding:24px;margin-bottom:32px;box-shadow:var(--tc-shadow-card);transition:var(--tc-transition)}.tc-current-time-card:hover{box-shadow:var(--tc-shadow-hover);border-color:var(--tc-primary-color);transform:translateY(-2px)}.tc-current-time-header{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--tc-border-light)}.tc-time-icon{width:24px;height:24px;fill:var(--tc-primary-color)}.tc-current-label{font-size:16px;font-weight:600;color:var(--tc-text-color);letter-spacing:-.01em}.tc-time-content{display:flex;flex-direction:column;gap:16px}.tc-time-display{font-size:clamp(18px,3.5vw,24px);font-weight:600;color:var(--tc-text-color);letter-spacing:-.01em;line-height:1.3;display:flex;flex-wrap:wrap;align-items:baseline;gap:8px}.tc-time-display:before{content:"";width:4px;height:4px;background:var(--tc-primary-color);border-radius:50%;margin-right:4px;animation:tc-blink 2s infinite}@keyframes tc-blink{0%,50%{opacity:1}51%,to{opacity:.3}}.tc-timestamp-row{display:flex;align-items:center;justify-content:space-between;background:var(--tc-bg-color);border:1px solid var(--tc-border-light);border-radius:var(--tc-border-radius-sm);padding:16px 20px;transition:var(--tc-transition)}.tc-timestamp-row:hover{background:var(--tc-surface-hover);border-color:var(--tc-border-color)}.tc-timestamp-info{display:flex;flex-direction:column;gap:4px}.tc-timestamp-label{font-size:12px;font-weight:500;color:var(--tc-text-muted);text-transform:uppercase;letter-spacing:.05em}.tc-timestamp-value{font-family:SF Mono,Monaco,Menlo,Ubuntu Mono,monospace;font-size:18px;font-weight:700;color:var(--tc-primary-color);letter-spacing:.5px}.tc-copy-btn-modern{background:var(--tc-primary-color);border:none;border-radius:var(--tc-border-radius-sm);padding:10px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;min-width:40px;height:40px;box-shadow:0 2px 4px #6366f133;will-change:transform,background-color;-webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;-webkit-user-select:none}.tc-copy-btn-modern:hover{background:var(--tc-primary-dark);transform:translateY(-1px);box-shadow:0 4px 8px #6366f14d}.tc-copy-btn-modern.tc-copied{background:var(--tc-success-color);transform:scale(1.02)}.tc-copy-btn-modern .tc-copy-icon{width:18px;height:18px;fill:#fff}@media (max-width: 1024px){.tc-main{grid-template-columns:1fr;gap:24px}}@media (max-width: 768px){#timestamp-converter-root{padding:16px 12px}.tc-current-time-card{padding:18px 16px;margin-bottom:20px;border-radius:var(--tc-border-radius-sm)}.tc-time-display{font-size:clamp(15px,4vw,18px);gap:4px;line-height:1.3}.tc-timestamp-value{font-size:15px;letter-spacing:.2px}.tc-card{padding:20px 16px}.tc-input{padding:14px 16px;font-size:16px;border-radius:var(--tc-border-radius-sm)}.tc-button{padding:12px 20px;font-size:14px;min-height:44px;border-radius:var(--tc-border-radius-sm)}.tc-result{font-size:14px;padding:16px;border-radius:var(--tc-border-radius-sm)}.tc-result-compact{font-size:14px;padding:14px 16px}.tc-copy-btn{min-width:44px;height:44px;padding:12px;border-radius:var(--tc-border-radius-sm)}.tc-result-wrapper{padding:16px}.tc-result-main{font-size:14px;margin-bottom:8px;line-height:1.4}.tc-result-relative{font-size:13px;padding-top:4px;line-height:1.3}.tc-copy-icon{width:18px;height:18px}.tc-timestamp-row{flex-direction:row;align-items:center;gap:12px;flex-wrap:wrap}.tc-copy-btn-modern{min-width:40px;height:40px;padding:10px;border-radius:var(--tc-border-radius-sm)}.tc-copy-btn-modern .tc-copy-icon{width:18px;height:18px}.tc-timestamp-row .tc-copy-btn-with-text{display:inline!important;font-size:13px;min-width:100px;height:auto;padding:8px 12px;gap:6px;justify-content:center}.tc-timestamp-row .tc-copy-btn-with-text .tc-copy-text{display:inline!important;font-size:13px}.tc-timestamp-row .tc-copy-btn-with-text .tc-copy-icon{width:16px;height:16px}.tc-result-container{gap:16px;flex-direction:row;align-items:flex-start}.tc-tab-panel .tc-result-container{flex-direction:column;align-items:stretch}.tc-tab-panel .tc-result-container .tc-result{margin-bottom:16px;padding:20px 16px;font-size:14px;line-height:1.5;text-align:left}.tc-tab-panel .tc-result-container .tc-copy-btn{align-self:center;min-width:48px;height:48px;padding:14px}.tc-timestamp-item{margin-bottom:20px}.tc-timestamp-label{font-size:14px;margin-bottom:8px}.tc-input-group{gap:16px}.tc-label{font-size:15px}.tc-input-hint{font-size:13px;padding:10px 12px}}.tc-fade-enter-active,.tc-fade-leave-active{transition:opacity .3s ease}.tc-fade-enter-from,.tc-fade-leave-to{opacity:0}.tc-loading{display:inline-block;width:20px;height:20px;border:2px solid var(--tc-border-color);border-radius:50%;border-top-color:var(--tc-primary-color);animation:tc-spin 1s linear infinite}@keyframes tc-spin{to{transform:rotate(360deg)}}.tc-toast{position:fixed;top:24px;right:24px;background:var(--tc-primary-color);color:#fff;padding:16px 24px;border-radius:var(--tc-border-radius);box-shadow:var(--tc-shadow-hover);display:flex;align-items:center;gap:12px;font-weight:500;font-size:15px;z-index:1000;letter-spacing:-.01em;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}.tc-toast-icon{width:18px;height:18px;fill:#fff}.tc-toast-enter-active{transition:all .25s ease-out}.tc-toast-leave-active{transition:all .2s ease-in}.tc-toast-enter-from,.tc-toast-leave-to{opacity:0;transform:translateY(-8px) scale(.95)}@media (max-width: 768px){.tc-toast{top:20px;right:16px;left:16px;font-size:14px;padding:14px 20px;border-radius:var(--tc-border-radius-sm)}}.tc-tabs{background:var(--tc-surface-color);border-radius:var(--tc-border-radius);box-shadow:var(--tc-shadow);border:1px solid var(--tc-border-color);overflow:hidden;transition:var(--tc-transition)}.tc-tabs:hover{box-shadow:var(--tc-shadow-hover)}.tc-tab-nav{display:flex;background:var(--tc-border-light);border-bottom:1px solid var(--tc-border-color);overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}.tc-tab-nav::-webkit-scrollbar{display:none}.tc-tab-button{flex:1;min-width:140px;padding:16px 20px;background:transparent;border:none;color:var(--tc-text-secondary);font-size:15px;font-weight:500;cursor:pointer;transition:var(--tc-transition);display:flex;align-items:center;justify-content:center;gap:8px;position:relative;border-bottom:3px solid transparent;letter-spacing:-.01em;-webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;-webkit-user-select:none}.tc-tab-button:hover{background:rgba(138,43,226,.05);color:var(--tc-primary-color)}.tc-tab-button.tc-tab-active{background:var(--tc-surface-color);color:var(--tc-primary-color);border-bottom-color:var(--tc-primary-color);font-weight:600}.tc-tab-button:focus{outline:none!important;outline-offset:0!important}.tc-tab-icon{width:18px;height:18px;fill:currentColor;transition:var(--tc-transition)}.tc-tab-content{padding:32px;min-height:400px}.tc-tab-panel{animation:tc-fade-in .3s ease-out;display:flex;flex-direction:column;gap:24px}.tc-tab-panel .tc-button{margin-top:12px;margin-left:auto}@keyframes tc-fade-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.tc-tab-nav{flex-direction:row;overflow-x:auto;-webkit-overflow-scrolling:touch}.tc-tab-button{min-width:120px;flex-shrink:0;justify-content:center;padding:16px 12px;font-size:14px;min-height:48px}.tc-tab-content{padding:20px 16px;min-height:300px}.tc-tab-panel{gap:20px}.tc-tab-panel .tc-button{margin-top:8px;margin-left:auto;margin-right:0}.tc-copy-btn-with-text .tc-copy-text{display:inline}.tc-copy-btn-with-text{min-width:120px!important;width:auto!important;height:auto!important;padding:12px 20px!important}.tc-tab-panel .tc-result-container .tc-copy-btn-with-text{min-width:140px!important;width:auto!important;height:auto!important;padding:14px 24px!important}.tc-tab-panel .tc-result-container .tc-result{padding:16px}}@media (max-width: 480px){.tc-tab-content{padding:16px 12px}.tc-tab-button{min-width:100px;padding:14px 8px;font-size:13px;gap:6px}.tc-tab-icon{width:16px;height:16px}.tc-tab-panel{gap:16px}.tc-tab-panel .tc-button{width:100%;margin-left:0;justify-content:center}.tc-tab-panel .tc-result-container .tc-result{padding:14px 12px;font-size:13px}.tc-tab-panel .tc-result-container .tc-copy-btn{min-width:48px;height:48px;padding:14px}.tc-tab-panel .tc-result-container .tc-copy-btn-with-text{min-width:120px!important;height:auto!important;padding:12px 20px!important}.tc-copy-btn-with-text .tc-copy-text{font-size:13px}.tc-timestamp-row .tc-copy-btn-with-text{min-width:110px;padding:10px 14px}.tc-timestamp-row .tc-copy-btn-with-text .tc-copy-text{font-size:13px}}@media (max-width: 360px){#timestamp-converter-root{padding:12px 8px}.tc-current-time-card{padding:16px 12px;margin-bottom:16px}.tc-card{padding:16px 12px}.tc-tab-content{padding:12px 8px}.tc-tab-button{min-width:80px;padding:12px 6px;font-size:12px}.tc-input{padding:12px 14px;font-size:16px}.tc-button{padding:10px 16px;font-size:13px;min-height:40px}.tc-copy-btn{min-width:44px;height:44px;padding:12px}.tc-copy-btn-modern{min-width:40px;height:40px;padding:10px}.tc-tab-panel .tc-result-container .tc-copy-btn{min-width:52px;height:52px;padding:16px}.tc-copy-btn-with-text .tc-copy-text{display:inline!important;font-size:12px}.tc-copy-btn-with-text{min-width:100px!important;width:auto!important;height:auto!important;padding:10px 16px!important;gap:6px;justify-content:center}.tc-result{padding:12px;font-size:13px}.tc-result-wrapper,.tc-tab-panel .tc-result-container .tc-result{padding:12px}.tc-tab-panel .tc-result-container .tc-copy-btn-with-text{min-width:100px!important;padding:10px 16px!important}.tc-copy-btn-with-text .tc-copy-text{font-size:12px}.tc-copy-btn-with-text .tc-copy-icon{width:16px;height:16px}按日期 .tc-timestamp-row .tc-copy-btn-with-text{min-width:100px;padding:8px 12px}.tc-timestamp-row .tc-copy-btn-with-text .tc-copy-text{font-size:12px}.tc-timestamp-row .tc-copy-btn-with-text .tc-copy-icon{width:16px;height:16px}}