:root{--bg-color:#fff;--bg-card:#fff;--text-color:#202326;--text-muted:#5c636a;--border-color:#dfe2e5;--shadow-color:#15181b14;--surface-subtle:#f4f5f6;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;--image-shadow:0 10px 28px #00000047, 0 2px 8px #00000038;--accent-red:#b4232a;--footer-bg:#232629;--footer-text:#fff;--footer-muted:#c9cdd1;font-family:var(--font-sans);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-weight:400;line-height:1.5}:root.dark{--bg-color:#1a1a1a;--bg-card:#242424;--text-color:#fff;--text-muted:#d1d5db;--border-color:#4c4d4f;--shadow-color:#ffffff14;--surface-subtle:#25282b;--image-shadow:0 12px 30px #0000008c, 0 0 0 1px #ffffff1f;--footer-bg:#232323;--footer-text:#fff;--footer-muted:#c9cdd1}*{box-sizing:border-box}body{background-color:var(--bg-color);min-width:320px;min-height:100vh;color:var(--text-color);margin:0;transition:background-color .3s,color .3s}button,input,select,textarea{font:inherit}:focus-visible{outline:3px solid color-mix(in srgb, var(--accent-red) 70%, white);outline-offset:3px}a{color:inherit}#app{text-align:center;width:100%;margin:0;padding:0}.common-layout{background:var(--bg-color);min-height:100vh;color:var(--text-color)}.theme-transitioning,.theme-transitioning *{transition:background-color .45s,color .45s,border-color .45s,box-shadow .45s,fill .45s,stroke .45s}.theme-transitioning a,.theme-transitioning a:link,.theme-transitioning a:visited,.theme-transitioning a:hover,.theme-transitioning a:active{transition:color .45s,text-decoration-color .45s}.app-container{flex-direction:column;width:100%;min-height:100vh;display:flex}.app-main{flex-direction:column;flex:1;justify-content:center;padding:0;display:flex}.route-loading{min-height:45vh}.sr-only{clip:rect(0, 0, 0, 0);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=600px){.app-main{padding:0}}.page-shell{width:min(1180px,100% - 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16px);display:inline-flex;position:fixed;bottom:20px;right:20px}.corner-lang-switcher{position:relative}.corner-lang-trigger{border:1px solid var(--border-color);background:var(--bg-card);height:36px;color:var(--text-color);cursor:pointer;white-space:nowrap;border-radius:10px;outline:none;align-items:center;gap:6px;padding:0 10px;font-size:12px;font-weight:600;display:inline-flex;box-shadow:0 4px 14px #0000002e}.corner-lang-trigger:focus-visible{outline:2px solid var(--accent-color,#1f80ea);outline-offset:2px}:root.dark .corner-lang-trigger{box-shadow:0 6px 16px #00000047}.corner-lang-icon{width:18px;height:18px;color:var(--text-muted);flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.corner-lang-icon svg{fill:currentColor;width:100%;height:100%}.corner-lang-label{display:inline}.corner-lang-caret{color:var(--text-muted);flex-shrink:0;align-items:center;display:inline-flex}.corner-lang-caret svg{transition:transform .2s}.corner-lang-caret svg.open{transform:rotate(180deg)}.corner-lang-menu{border:1px solid var(--border-color);background:var(--bg-card);border-radius:10px;min-width:90px;padding:6px;position:absolute;bottom:calc(100% + 8px);right:0;box-shadow:0 10px 24px #00000038}:root.dark .corner-lang-menu{box-shadow:0 12px 24px #00000061}.corner-lang-option{width:100%;min-height:44px;color:var(--text-color);text-align:center;cursor:pointer;background:0 0;border:none;border-radius:8px;padding:8px 10px;font-size:13px}.corner-lang-option:hover{background:#3b82f624}:root.dark .corner-lang-option:hover{background:#ffffff1a}.corner-lang-option.active{color:#fff;background:#1f80ea}@media (width<=768px){.corner-lang-trigger{justify-content:center;width:44px;height:44px;padding:0}.corner-lang-label,.corner-lang-caret{display:none}.corner-lang-icon{width:20px;height:20px}}.dark-mode-toggle{border:1px solid var(--border-color);background:var(--bg-card);width:40px;height:36px;color:var(--text-color);cursor:pointer;transform-origin:50%;border-radius:10px;justify-content:center;align-items:center;font-size:18px;display:inline-flex;box-shadow:0 4px 14px #0000002e}.dark-mode-toggle.switching{animation:.45s theme-toggle-pop}:root.dark .dark-mode-toggle{box-shadow:0 6px 16px #00000047}@keyframes theme-toggle-pop{0%{transform:scale(1)rotate(0)}40%{transform:scale(1.12)rotate(16deg)}to{transform:scale(1)rotate(0)}}@media (prefers-reduced-motion:reduce){.dark-mode-toggle.switching{animation:none}}@media (width<=600px){.corner-lang-trigger{justify-content:center;width:44px;height:44px;padding:0}.corner-controls{right:12px;bottom:calc(12px + env(safe-area-inset-bottom));gap:6px}.dark-mode-toggle{width:44px;height:44px;font-size:15px}}.site-footer{border-top:1px solid var(--border-color);background:var(--footer-bg);color:var(--footer-text);flex-shrink:0}.footer-inner{text-align:left;grid-template-columns:minmax(0,1fr) auto;gap:22px 48px;width:min(1180px,100% - 48px);margin:0 auto;padding:40px 0 34px;display:grid}.footer-primary p,.footer-legal p{margin:7px 0 0}.footer-company{color:inherit;font-size:16px;font-weight:700;text-decoration:none}.footer-primary,.footer-legal{font-size:14px;line-height:1.65}.footer-primary{color:var(--footer-muted)}.footer-links{flex-wrap:wrap;justify-content:flex-end;align-items:flex-start;gap:8px 20px;font-size:14px;font-weight:650;display:flex}.site-footer a{color:inherit;text-underline-offset:3px}.footer-legal{border-top:1px solid var(--border-color);color:var(--footer-muted);grid-column:1/-1;padding-top:18px;font-size:13px}@media (width<=720px){.footer-inner{grid-template-columns:1fr;gap:22px;width:calc(100% - 32px);padding:32px 0 84px}.footer-links{justify-content:flex-start}.footer-legal{grid-column:auto;font-size:13px}}.site-header{z-index:100;border-bottom:1px solid var(--border-color);background:color-mix(in srgb, var(--bg-card) 96%, transparent);flex-shrink:0;position:relative;box-shadow:0 1px 6px #15181b0f}.header-content{justify-content:space-between;align-items:center;gap:32px;width:min(1180px,100% - 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