:root{--bg:#f5f6f7;--fg:#1f2329;--fg-secondary:#646a73;--fg-tertiary:#8f959e;--primary:#3370ff;--primary-weak:#e8f1ff;--primary-strong:#1e58e2;--border:#e5e6e8;--card-bg:#fff;--radius-lg:12px;--radius-md:8px;--shadow-card:0 1px 2px rgba(31,35,41,.04),0 2px 8px rgba(31,35,41,.04)}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden}body{color:var(--fg);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,HarmonyOS Sans SC,sans-serif;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}.page-container{width:100%;max-width:1100px;margin:0 auto;padding:16px 16px 40px}@media (min-width:768px){.page-container{padding:24px 32px 56px}}.gz-header{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:hsla(0,0%,100%,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.gz-header-inner{max-width:1100px;margin:0 auto;padding:10px 16px;gap:12px}.gz-brand,.gz-header-inner{display:flex;align-items:center}.gz-brand{gap:8px;font-size:17px;font-weight:700;color:var(--fg);cursor:pointer}.gz-brand-mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,#3370ff,#4f8bff);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex-shrink:0}.gz-header-links{margin-left:auto;display:flex;align-items:center;gap:4px}.gz-header-link{font-size:13px;color:var(--fg-secondary);padding:6px 10px;border-radius:6px;cursor:pointer;transition:all .15s}.gz-header-link:hover{color:var(--primary);background:var(--primary-weak)}.q-stem{font-size:15px;line-height:1.8;color:var(--fg);white-space:pre-wrap}@media (min-width:768px){.q-stem{font-size:16px}}.answer-body{font-size:14px;line-height:1.9;white-space:pre-wrap;word-break:break-word}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(245,74,69,.4)}70%{box-shadow:0 0 0 14px rgba(245,74,69,0)}to{box-shadow:0 0 0 0 rgba(245,74,69,0)}}.recording-pulse{animation:pulse 1.4s infinite}.gz-select-card{border:1.5px solid var(--border);border-radius:var(--radius-lg);padding:14px 16px;cursor:pointer;background:var(--card-bg);display:flex;align-items:center;gap:12px;transition:all .15s;width:100%}.gz-select-card:hover{border-color:#b8ccff;box-shadow:0 2px 8px rgba(51,112,255,.08)}.gz-select-card.active{border-color:var(--primary);background:#f0f6ff;box-shadow:0 2px 8px rgba(51,112,255,.1)}.gz-select-card-icon{width:40px;height:40px;border-radius:10px;background:#f2f3f5;color:var(--fg-secondary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0;transition:all .15s}.gz-select-card.active .gz-select-card-icon{background:var(--primary);color:#fff}@media (max-width:480px){.hide-xs{display:none!important}}.gz-typing-cursor{animation:gz-blink .9s step-end infinite;color:#3370ff;margin-left:2px}@keyframes gz-blink{50%{opacity:0}}:root{--font-display:clamp(30px,6vw,48px);--font-h1:24px;--font-h2:20px;--font-h3:16px;--font-body:14.5px;--font-caption:12.5px;--font-mono-num:"DIN Alternate","Arial",-apple-system,sans-serif;--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:20px;--sp-6:24px;--sp-8:32px;--sp-10:40px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--shadow-1:0 1px 2px rgba(15,20,32,.05),0 2px 8px rgba(15,20,32,.05);--shadow-2:0 4px 12px rgba(15,20,32,.08),0 12px 32px rgba(15,20,32,.08);--color-success:#00b42a;--color-warning:#f7ba1e;--color-danger:#f54a45;--color-seal:#d93026;--dark-bg:#0f1420;--dark-bg-2:#161d2e;--dark-border:hsla(0,0%,100%,.08)}.gz-lift{transition:transform .22s cubic-bezier(.2,0,0,1),box-shadow .22s,border-color .22s}.gz-lift:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#b8ccff}.gz-press:active{transform:scale(.97);transition:transform .08s}.gz-seal{display:inline-flex;align-items:center;justify-content:center;border-radius:6px;background:var(--color-seal);color:#fff;font-weight:900;letter-spacing:.5px;box-shadow:inset 0 0 0 2px hsla(0,0%,100%,.72),inset 0 0 0 4px hsla(0,0%,100%,.22),0 3px 8px rgba(217,48,38,.28);text-shadow:0 1px 2px rgba(0,0,0,.22);-webkit-user-select:none;-moz-user-select:none;user-select:none}@keyframes gz-seal-down{0%{transform:scale(1.35) rotate(-4deg);opacity:0}60%{transform:scale(.96) rotate(1deg);opacity:1}80%{transform:scale(1.04)}to{transform:scale(1) rotate(0deg)}}.gz-seal-down{animation:gz-seal-down .45s cubic-bezier(.2,0,0,1) both}.gz-num{font-family:var(--font-mono-num);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}@keyframes gz-shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.gz-skeleton-block{border-radius:var(--radius-sm);background:linear-gradient(90deg,#eef0f3 25%,#f7f8fa 50%,#eef0f3 75%);background-size:800px 100%;animation:gz-shimmer 1.3s linear infinite}.gz-mobile-dock{position:fixed;left:0;right:0;bottom:0;z-index:90;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:hsla(0,0%,100%,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border)}@media (min-width:768px){.gz-mobile-dock{display:none!important}}@keyframes gz-step-ok{0%{transform:scale(0)}70%{transform:scale(1.15)}to{transform:scale(1)}}.gz-step-ok{animation:gz-step-ok .3s cubic-bezier(.2,0,0,1) both}