:root{--primary-start:#22c55e;--primary-end:#3b82f6;--primary-gradient:linear-gradient(135deg,var(--primary-start)0%,var(--primary-end)100%);--bg-primary:#fff;--bg-secondary:#f9fafb;--bg-card:#fff;--text-primary:#1f2937;--text-secondary:#6b7280;--text-muted:#9ca3af;--border-color:#e5e7eb;--border-light:#f3f4f6;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;--radius-sm:6px;--radius-md:12px;--radius-lg:16px;--radius-full:9999px;--spacing-xs:.5rem;--spacing-sm:1rem;--spacing-md:1.5rem;--spacing-lg:2rem;--spacing-xl:3rem;--nav-height:64px}[data-theme=dark]{--bg-primary:#111827;--bg-secondary:#1f2937;--bg-card:#1f2937;--text-primary:#f9fafb;--text-secondary:#d1d5db;--text-muted:#9ca3af;--border-color:#374151;--border-light:#1f2937;--shadow-sm:0 1px 2px 0 #0000004d;--shadow-md:0 4px 6px -1px #0006,0 2px 4px -1px #0000004d;--shadow-lg:0 10px 15px -3px #00000080,0 4px 6px -2px #0006}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji;line-height:1.6;transition:background-color .3s,color .3s}.doumiao-nav{z-index:1000;background-color:var(--bg-primary);border-bottom:1px solid var(--border-color);height:var(--nav-height);padding:0 var(--spacing-lg);box-shadow:var(--shadow-sm);align-items:center;display:flex;position:sticky;top:0}.doumiao-nav-container{justify-content:space-between;align-items:center;width:100%;max-width:1200px;margin:0 auto;display:flex}.doumiao-nav-logo{align-items:center;gap:var(--spacing-sm);color:var(--text-primary);text-decoration:none;display:flex}.doumiao-nav-logo img{width:auto;height:36px}.doumiao-nav-logo-text{background:var(--primary-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.125rem;font-weight:600}.doumiao-nav-actions{align-items:center;gap:var(--spacing-md);display:flex}.doumiao-theme-toggle{cursor:pointer;padding:var(--spacing-xs);border-radius:var(--radius-sm);color:var(--text-secondary);background:0 0;border:none;justify-content:center;align-items:center;font-size:1.25rem;transition:all .2s;display:flex}.doumiao-theme-toggle:hover{background-color:var(--bg-secondary);color:var(--text-primary)}.doumiao-nav-home{color:var(--text-secondary);font-size:.875rem;text-decoration:none;transition:color .2s}.doumiao-nav-home:hover{color:var(--text-primary)}.doumiao-footer{background-color:var(--bg-secondary);border-top:1px solid var(--border-color);padding:var(--spacing-lg)var(--spacing-lg);margin-top:var(--spacing-xl);text-align:center}.doumiao-footer-content{max-width:1200px;margin:0 auto}.doumiao-footer-copyright{color:var(--text-muted);margin-bottom:var(--spacing-sm);font-size:.875rem}.doumiao-footer-links{justify-content:center;gap:var(--spacing-md);flex-wrap:wrap;display:flex}.doumiao-footer-links a{color:var(--text-secondary);font-size:.875rem;text-decoration:none;transition:color .2s}.doumiao-footer-links a:hover{color:var(--text-primary)}.doumiao-card{background-color:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:var(--spacing-lg);transition:all .3s}.doumiao-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.doumiao-btn-primary{background:var(--primary-gradient);color:#fff;border-radius:var(--radius-md);padding:var(--spacing-sm)var(--spacing-lg);cursor:pointer;border:none;font-size:1rem;font-weight:500;text-decoration:none;transition:all .2s;display:inline-block}.doumiao-btn-primary:hover{opacity:.9;box-shadow:var(--shadow-md);transform:translateY(-1px)}.doumiao-btn-secondary{background-color:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:var(--spacing-sm)var(--spacing-lg);cursor:pointer;font-size:1rem;font-weight:500;text-decoration:none;transition:all .2s;display:inline-block}.doumiao-btn-secondary:hover{background-color:var(--border-light);border-color:var(--text-muted)}.doumiao-container{max-width:1200px;padding:var(--spacing-lg);margin:0 auto}main{width:100%;max-width:100%}main div.animate-fade-in,main>div[class*=mx-auto]{width:100%!important;max-width:1200px!important;margin-left:auto!important;margin-right:auto!important}section{margin-left:auto!important;margin-right:auto!important}section:first-of-type p{text-align:center;margin-left:auto;margin-right:auto}section>div[class*=grid]{margin-left:auto!important;margin-right:auto!important}.tool-card,.ai-tool-card{text-align:center}.tool-card>div,.ai-tool-card>div{flex-direction:column;align-items:center;display:flex}.tool-card h3,.ai-tool-card h3,.tool-card p,.ai-tool-card p{text-align:center}section+section{margin-top:4rem}@media (min-width:768px){section+section{margin-top:6rem}}[data-theme=dark] .text-\[\#1A1A2E\],[data-theme=dark] .text-\[\#1f2937\],[data-theme=dark] .text-gray-900,[data-theme=dark] .text-gray-800{color:var(--text-primary)!important}[data-theme=dark] .text-\[\#6B7280\],[data-theme=dark] .text-gray-600,[data-theme=dark] .text-gray-500{color:var(--text-secondary)!important}[data-theme=dark] .bg-white{background-color:var(--bg-card)!important}[data-theme=dark] .bg-gray-50,[data-theme=dark] .bg-gray-100{background-color:var(--bg-secondary)!important}[data-theme=dark] .border-\[\#E5E7EB\],[data-theme=dark] .border-gray-200{border-color:var(--border-color)!important}.doumiao-title{color:var(--text-primary);margin-bottom:var(--spacing-md);font-size:2rem;font-weight:700}.doumiao-subtitle{color:var(--text-secondary);margin-bottom:var(--spacing-lg);font-size:1rem}@media (max-width:768px){:root{--spacing-lg:1rem;--spacing-xl:2rem}.doumiao-nav{padding:0 var(--spacing-sm)}.doumiao-nav-logo-text{font-size:1rem}.doumiao-nav-actions{gap:var(--spacing-sm)}.doumiao-title{font-size:1.5rem}.doumiao-footer{padding:var(--spacing-md)var(--spacing-sm)}}