:root{--bg: #ffffff;--fg: #0f172a;--muted: #64748b;--brand: #166534;--brand-dark: #14532d;--brand-soft: #e5f3e9;--amber: #d99a25;--green: #12a783;--red: #d95f50;--slate: #5a6b82;--surface: #f8fafc;--border: #e2e8f0;--max: 1080px}*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:rgba(22,101,52,.35) transparent;scrollbar-gutter:stable}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans,Microsoft YaHei,sans-serif;color:var(--fg);background:var(--bg);line-height:1.6}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background-color:#16653452;border-radius:999px;border:2px solid var(--bg)}::-webkit-scrollbar-thumb:hover{background-color:var(--brand)}::-webkit-scrollbar-thumb:active{background-color:var(--brand-dark)}.site-header{position:sticky;top:0;z-index:50;background:#ffffffe6;backdrop-filter:saturate(180%) blur(8px);border-bottom:1px 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18px;font-size:14px;color:var(--muted);line-height:1.6}.trial-modal__form{display:flex;flex-direction:column;gap:14px}.trial-modal__field{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--fg)}.trial-modal__field input{width:100%;padding:11px 13px;font-size:15px;border:1px solid var(--border);border-radius:10px;outline:none;transition:border-color .15s,box-shadow .15s}.trial-modal__field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #16653426}.trial-modal__submit{width:100%;margin-top:4px;cursor:pointer}.trial-modal__submit:disabled{opacity:.6;cursor:default}.trial-modal__msg{margin:0;font-size:14px;line-height:1.5}.trial-modal__msg--error{color:#c0392b}.trial-modal__msg--success{color:var(--brand)}body.modal-open{overflow:hidden}.btn{display:inline-block;padding:12px 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li{font-size:14px}}.about__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:center}.stat{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:28px 16px}.stat__value{display:block;font-size:32px;font-weight:700;color:var(--brand)}.stat__label{display:block;margin-top:6px;font-size:14px;color:var(--muted)}.faq__list{max-width:760px;margin:0 auto}.faq__item{border:1px solid var(--border);border-radius:12px;padding:4px 20px;margin-bottom:12px;background:var(--surface)}.faq__item summary{cursor:pointer;font-weight:600;font-size:16px;padding:14px 0;list-style:none}.faq__item summary::-webkit-details-marker{display:none}.faq__item summary:after{content:"+";float:right;color:var(--muted);font-weight:400}.faq__item[open] summary:after{content:"−"}.faq__item p{margin:0 0 16px;color:var(--muted);white-space:pre-line;line-height:1.7}.site-footer{border-top:1px solid var(--border);margin-top:80px;background:var(--surface)}.site-footer__inner{max-width:var(--max);margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.site-footer__brand{display:inline-flex;align-items:center;gap:12px}.site-footer__meta{display:inline-flex;align-items:center;gap:20px}.site-footer__email{color:var(--muted);text-decoration:none;font-size:14px;font-weight:500;border-bottom:1px solid transparent;transition:color .15s,border-bottom-color .15s}.site-footer__email:hover{color:var(--brand);border-bottom-color:var(--brand)}.site-footer__rights{font-size:13px;color:var(--muted)}.docs__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:28px}.docs__more{font-size:20px;color:var(--brand);text-decoration:none}.docs .btn{margin-top:8px}@media(max-width:760px){.hero__title{font-size:32px}.features__grid,.about__stats,.docs__grid{grid-template-columns:1fr}.site-footer__inner{gap:10px}}