@import "https://fonts.googleapis.com/css2?family=Sawarabi+Mincho&family=Noto+Sans+SC:wght@300;400;500;600;700&family=Noto+Serif+SC:wght@400;500;600;700&display=swap";
:root{--color-primary:#10b981;--color-primary-light:#d1fae5;--color-primary-dark:#059669;--color-bg:#fff;--color-surface:#f9fafb;--color-border:#e5e7eb;--color-text:#111827;--color-text-secondary:#6b7280}[lang=zh]{--font-sans:"Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--font-serif:"Noto Serif SC", "Songti SC", "SimSun", serif}[lang=ja],[lang=en]{--font-sans:"Sawarabi Mincho", "Noto Serif JP", serif;--font-serif:"Sawarabi Mincho", "Noto Serif JP", serif}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}*{box-sizing:border-box;margin:0;padding:0}.container{max-width:1200px;margin:0 auto;padding:0 24px}.header{z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border);background:#fffffff2;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;height:72px;display:flex}.header-logo img{width:auto;height:40px}.header-nav{align-items:center;gap:32px;display:flex}.header-nav a{color:var(--color-text-secondary);font-size:15px;font-weight:500;text-decoration:none;transition:color .2s}.header-nav a:hover{color:var(--color-text)}.header-nav a.active{color:var(--color-primary)}.mobile-menu-btn{cursor:pointer;background:0 0;border:none;padding:8px;display:none}@media (max-width:768px){.header-nav{display:none}.mobile-menu-btn{display:block}}.footer{background:var(--color-surface);border-top:1px solid var(--color-border);padding:64px 0 32px}.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px;display:grid}.footer-brand p{color:var(--color-text-secondary);max-width:280px;margin-top:16px;font-size:14px}.footer-col h4{color:var(--color-text);margin-bottom:16px;font-size:14px;font-weight:600}.footer-col ul{list-style:none}.footer-col li{margin-bottom:12px}.footer-col a{color:var(--color-text-secondary);font-size:14px;text-decoration:none;transition:color .2s}.footer-col a:hover{color:var(--color-primary)}.footer-bottom{border-top:1px solid var(--color-border);color:var(--color-text-secondary);justify-content:space-between;align-items:center;padding-top:32px;font-size:14px;display:flex}.footer-social{gap:16px;display:flex}.footer-social a{color:var(--color-text-secondary);transition:color .2s}.footer-social a:hover{color:var(--color-primary)}@media (max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-bottom{text-align:center;flex-direction:column;gap:16px}}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:500;text-decoration:none;transition:all .2s;display:inline-flex}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark)}.btn-secondary{color:var(--color-text);border:1px solid var(--color-border);background:#fff}.btn-secondary:hover{border-color:var(--color-primary);color:var(--color-primary)}.btn-ghost{color:var(--color-primary);background:0 0}.btn-ghost:hover{background:var(--color-primary-light)}