:root{--pub-ink:#151a23;--pub-muted:#667281;--pub-blue:#4b87bb;--pub-line:#e3e8ee;--pub-soft:#f5f8fc}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--pub-ink);background:#fff;font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:4px}button{font:inherit}a:focus-visible,summary:focus-visible{outline:3px solid #78add9;outline-offset:5px}img{max-width:100%;height:auto}.public-shell{width:min(1160px,calc(100% - 48px));margin:auto}.public-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:86px;border-bottom:1px solid var(--pub-line)}.public-logo img{width:102px;display:block}.public-nav-links{display:flex;align-items:center;gap:28px;font-size:14px}.public-nav-links a{text-decoration:none}.public-nav-links a[aria-current=page]{color:#2c6597;font-weight:700}.public-button{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:46px;padding:10px 23px;border:1px solid var(--pub-ink);border-radius:999px;background:var(--pub-ink);color:#fff;text-decoration:none;font-size:14px;font-weight:650;line-height:1.5}.public-button.secondary{background:transparent;color:var(--pub-ink);border-color:var(--pub-line)}.public-eyebrow{font-size:12px;letter-spacing:.16em;color:#487ba6;font-weight:750}.public-hero{padding:76px 0 48px;max-width:870px}.public-hero h1{font-size:clamp(35px,4.5vw,60px);line-height:1.18;letter-spacing:-.04em;margin:18px 0 24px}.public-hero>p{max-width:720px;color:var(--pub-muted);font-size:18px}.public-hero small{color:var(--pub-muted)}.public-tags{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.public-tags span{padding:6px 13px;border:1px solid var(--pub-line);border-radius:30px;font-size:13px}.public-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.public-section{padding:64px 0;border-top:1px solid var(--pub-line)}.public-section h2{font-size:clamp(26px,3vw,38px);line-height:1.3;letter-spacing:-.03em;margin:0 0 20px}.public-lead{color:var(--pub-muted);max-width:760px;margin:0 0 30px}.public-plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.public-plan{border:1px solid var(--pub-line);border-radius:24px;padding:32px;background:#fff}.public-plan-pro{background:linear-gradient(150deg,#f1f7fc,#fff);border-color:#cbdfee}.public-plan-heading h2{font-size:30px;margin:9px 0}.public-plan-heading p{min-height:3.5em;font-size:15px;color:var(--pub-muted);margin-bottom:25px}.public-plan table{width:100%;border-collapse:collapse}.public-plan th,.public-plan td{padding:18px 0;border-top:1px solid var(--pub-line);text-align:left;vertical-align:middle}.public-plan th{font-size:15px;font-weight:600;width:46%;padding-right:14px}.public-plan td{text-align:right}.public-plan small{display:block;color:var(--pub-muted);font-size:12px;font-weight:400;margin-top:5px}.public-plan td b{font-size:30px;line-height:1.2;letter-spacing:-.03em}.public-benefits{list-style:none;padding:16px 0;margin:0 0 18px;font-size:14px}.public-benefits li{margin:10px 0;padding-left:18px;position:relative}.public-benefits li:before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--pub-blue)}.public-plan>.public-button{width:100%}.public-sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.public-notice{padding:18px 22px;background:var(--pub-soft);border-radius:14px;color:#5c6d7f;font-size:14px;margin-top:24px}.public-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}.public-columns h3{font-size:20px;margin:14px 0}.public-columns p{font-size:15px;color:var(--pub-muted)}.public-number{font-size:13px;color:#487ba6;letter-spacing:.1em}.public-faq{max-width:900px}.public-faq details{border-bottom:1px solid var(--pub-line);padding:20px 0}.public-faq summary{cursor:pointer;font-size:17px;font-weight:600;min-height:30px}.public-faq p{color:var(--pub-muted);margin:15px 0 5px;max-width:800px}.public-wechat{display:flex;align-items:center;gap:40px;background:var(--pub-soft);border-radius:24px;padding:32px}.public-wechat img{width:170px;flex-shrink:0;border-radius:16px}.public-wechat h2{font-size:28px}.public-wechat p{color:var(--pub-muted);max-width:680px}.public-footer{padding:36px 0 40px;border-top:1px solid var(--pub-line);font-size:12px;color:var(--pub-muted)}.public-footer-links{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;margin-bottom:22px}.public-footer p{margin:5px 0}.public-tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}.public-tools article{padding:24px 0;border-bottom:1px solid var(--pub-line)}.public-tools h3{margin:0 0 8px;font-size:19px}.public-tools p{margin:0;color:var(--pub-muted);font-size:15px}.public-demo{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:32px}.public-demo-input{background:var(--pub-soft);padding:28px;border-radius:20px;align-self:start}.public-demo h3{font-size:22px;line-height:1.4}.public-demo-input dl{margin:24px 0}.public-demo-input dt{font-size:12px;color:var(--pub-muted);margin-top:16px}.public-demo-input dd{margin:4px 0 0}.public-example{border:1px solid var(--pub-line);border-radius:18px;padding:26px;margin-bottom:18px}.public-example h3{margin:8px 0 16px}.public-example p{color:#475568}.public-example small{color:var(--pub-muted)}.public-toc{display:flex;flex-wrap:wrap;gap:12px 24px;padding:22px 0;font-size:14px}.public-price-summary{display:flex;flex-wrap:wrap;gap:14px;margin:24px 0}.public-price-summary a{display:block;padding:14px 20px;border:1px solid #dce6ef;border-radius:14px;text-decoration:none;background:#fff}.public-price-summary span{display:block;font-size:13px;color:#617285;margin-bottom:4px}.public-price-summary strong{font-size:28px;line-height:1.2;color:#151a23}.public-price-summary small{font-size:13px;color:#667281}.public-price-note{font-size:14px;color:#667281}.public-unavailable{padding:35px;background:var(--pub-soft);border-radius:20px}
@media(max-width:760px){.public-shell{width:calc(100% - 36px)}.public-nav{min-height:72px;gap:18px;flex-wrap:wrap;padding:12px 0}.public-logo img{width:84px}.public-nav-links{gap:16px;font-size:13px;flex-wrap:wrap}.public-nav-links .public-button{padding:9px 15px;min-height:42px;font-size:12px}.public-hero{padding:44px 0 32px}.public-hero>p{font-size:16px}.public-section{padding:42px 0}.public-plan-grid,.public-columns,.public-demo,.public-tools{grid-template-columns:1fr}.public-plan{padding:23px 20px}.public-plan-heading h2{font-size:27px}.public-plan th{width:45%;font-size:14px}.public-plan td b{font-size:28px}.public-plan small{font-size:12px}.public-wechat{display:block;padding:24px}.public-wechat img{width:150px;margin-bottom:20px}.public-columns{gap:18px}.public-example{padding:22px}.public-price-summary{gap:10px}.public-price-summary a{flex:1;min-width:135px;padding:12px 15px}.public-footer{padding-bottom:38px}}
@media(max-width:420px){.public-nav-links{gap:14px}.public-nav-links .public-button{display:none}.public-plan th{width:42%}.public-plan td small{max-width:160px;margin-left:auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}