*{margin:0;padding:0;box-sizing:border-box}:root{--color-bg: #f8f9fb;--color-surface: #ffffff;--color-text-primary: #1a1d23;--color-text-secondary: #5f6368;--color-text-tertiary: #9aa0a6;--color-border: #e8eaed;--color-blue: #3b82f6;--color-blue-light: #eff6ff;--color-green: #10b981;--color-green-light: #ecfdf5;--color-purple: #8b5cf6;--color-purple-light: #f5f3ff;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .08);--radius-md: 12px;--radius-lg: 16px;--transition: .2s cubic-bezier(.4, 0, .2, 1)}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--color-bg);color:var(--color-text-primary);line-height:1.6;min-height:100vh}.page-wrapper{display:flex;flex-direction:column;min-height:100vh}.header{padding:48px 24px 40px;text-align:center}.header-content{max-width:600px;margin:0 auto}.header-icon{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--color-blue),var(--color-purple));color:#fff;margin-bottom:20px;box-shadow:0 4px 16px #3b82f640}.header-title{font-size:2rem;font-weight:700;color:var(--color-text-primary);letter-spacing:-.02em;margin-bottom:8px}.header-subtitle{font-size:1rem;color:var(--color-text-secondary);font-weight:400}.main-content{flex:1;padding:0 24px 48px;max-width:720px;margin:0 auto;width:100%}.tools-grid{display:flex;flex-direction:column;gap:16px}.tool-card{display:flex;align-items:center;gap:16px;padding:20px 24px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);text-decoration:none;color:inherit;transition:all var(--transition);box-shadow:var(--shadow-sm);cursor:pointer;position:relative;overflow:hidden}.tool-card:before{content:"";position:absolute;inset:0;border-radius:var(--radius-lg);opacity:0;transition:opacity var(--transition);background:linear-gradient(135deg,#3b82f605,#8b5cf605)}.tool-card:hover{border-color:transparent;box-shadow:var(--shadow-lg);transform:translateY(-2px)}.tool-card:hover:before{opacity:1}.tool-card:active{transform:translateY(0);box-shadow:var(--shadow-md)}.card-icon-wrapper{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:12px;flex-shrink:0;position:relative;z-index:1}.card-icon-blue{background:var(--color-blue-light);color:var(--color-blue)}.card-icon-green{background:var(--color-green-light);color:var(--color-green)}.card-icon-purple{background:var(--color-purple-light);color:var(--color-purple)}.card-content{flex:1;min-width:0;position:relative;z-index:1}.card-title{font-size:1.05rem;font-weight:600;color:var(--color-text-primary);margin-bottom:4px;line-height:1.4}.card-desc{font-size:.875rem;color:var(--color-text-secondary);line-height:1.5}.card-arrow{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;color:var(--color-text-tertiary);flex-shrink:0;transition:all var(--transition);position:relative;z-index:1}.tool-card:hover .card-arrow{color:var(--color-blue);background:var(--color-blue-light);transform:translate(2px,-2px)}.footer{padding:24px;text-align:center;color:var(--color-text-tertiary);font-size:.8125rem;border-top:1px solid var(--color-border)}.footer p{margin-top:8px}.privacy-link{-webkit-appearance:none;appearance:none;background:none;border:none;outline:none;color:var(--color-text-tertiary);font-size:.8125rem;cursor:pointer;padding:0;margin:0;font-family:inherit;line-height:1.6;transition:color var(--transition);text-decoration:underline;text-underline-offset:3px;display:inline}.privacy-link:visited{color:var(--color-text-tertiary)}.privacy-link:hover{color:var(--color-blue)}@media(max-width:640px){.header{padding:36px 20px 28px}.header-title{font-size:1.625rem}.main-content{padding:0 16px 36px}.tool-card{padding:16px 18px;gap:14px}.card-icon-wrapper{width:42px;height:42px}.card-title{font-size:1rem}.card-desc{font-size:.8125rem}}.tool-card:focus-visible{outline:2px solid var(--color-blue);outline-offset:2px}