:root{--brand:#9e15bf;--brand-200:#d9b7e2;--brand-50:#f5f4fe;--ink:#000;--body:#252525;--muted:#6f8099;--line:#f1f5f9;--card-line:#cecece6b;}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.content-shell{width:100%;max-width:1280px;margin:0 auto;padding-left:2rem;padding-right:2rem}
.sf-action-primary,.sf-action-secondary{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:3px;padding:15px 40px;font-size:16px;font-weight:400;line-height:1.5;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}
.sf-action-primary{color:#fff;background:#9e15bf;text-shadow:0 1px rgba(0,0,0,.4);box-shadow:0 2px 4px rgba(45,35,66,.2),0 7px 13px -3px rgba(45,35,66,.3),inset 0 -3px rgba(58,65,111,.5)}
.sf-action-secondary{color:#444;background:#f1f1f1;box-shadow:0 2px 4px rgba(45,35,66,.1),0 7px 13px -3px rgba(45,35,66,.3),inset 0 -3px #d6d6e7}
.sf-action-primary:hover,.sf-action-secondary:hover{transform:translateY(-2px)}
.sf-action-primary:active,.sf-action-secondary:active{transform:translateY(2px)}
.sf-header{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--line)}
.sf-header__inner{display:flex;align-items:center;justify-content:space-between;gap:4px;min-height:92px;max-width:1264px}
.sf-logo{display:flex;align-items:center;gap:8px;font-size:19px;font-weight:800;letter-spacing:-.02em;color:#0f172a}
.sf-logo .sf-logo__mark{width:30px;height:30px;border-radius:7px;background:#9e15bf;display:grid;place-items:center;color:#fff;font-weight:900;font-size:17px}
.sf-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
.sf-nav a{font-size:15px;font-weight:500;color:#334155;padding:34px 0;transition:color .2s}
.sf-nav a:hover,.sf-nav a.active{color:var(--brand)}
.sf-header__actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.sf-header__actions .sf-hbtn{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 16px;border-radius:5px;font-size:12px;font-weight:600;color:#fff;background:#9e15bf;text-shadow:0 1px rgba(0,0,0,.4);box-shadow:0 2px 4px rgba(45,35,66,.2),0 7px 13px -3px rgba(45,35,66,.3),inset 0 -3px rgba(58,65,111,.5);transition:transform .18s,box-shadow .18s}
.sf-header__actions .sf-hbtn:hover{transform:translateY(-2px)}
.sf-header__actions .sf-hbtn:active{transform:translateY(2px)}
.sf-burger{display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid #e2e8f0;border-radius:5px;background:#fff;color:#1e293b;cursor:pointer}
.sf-mobile-nav{display:none;border-top:1px solid var(--line);background:#fff}
.sf-mobile-nav.open{display:block}
.sf-mobile-nav a{display:block;padding:14px 20px;font-size:15px;color:#334155;border-bottom:1px solid var(--line)}
.sf-hero{background:#fff}
.sf-hero__inner{display:grid;align-items:center;grid-template-columns:1fr 1fr;gap:clamp(2rem,4vw,4.5rem);min-height:675px;padding-top:62px;padding-bottom:72px}
.sf-home-title{color:#000;font-size:clamp(2.8rem,3.65vw,3.25rem);font-weight:600;line-height:1.2}
.sf-hero__summary{margin-top:24px;max-width:640px;color:var(--muted);font-size:19.2px;line-height:1.6}
.sf-hero__actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:24px}
.sf-hero__visual{max-width:535px;margin:0 auto;width:100%}
.mock{background:#fff;border:1px solid #ece5f1;border-radius:14px;overflow:hidden;box-shadow:0 24px 60px rgba(158,21,191,.14),0 4px 10px rgba(45,35,66,.06)}
.mock__bar{height:34px;background:#faf8fc;border-bottom:1px solid #efe7f3;display:flex;align-items:center;gap:6px;padding:0 14px}
.mock__bar i{width:9px;height:9px;border-radius:50%;background:#e2d6ea;display:block}
.mock__bar i:nth-child(1){background:#f3b0b0}
.mock__bar i:nth-child(2){background:#f6d79a}
.mock__bar i:nth-child(3){background:#b6e0b0}
.mock__url{margin-left:10px;height:16px;flex:1;max-width:230px;border-radius:8px;background:#f1ecf5}
.mock__body{padding:18px}
.mock__title{font-size:13px;font-weight:700;color:#2b1436;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.mock__title span{width:8px;height:8px;border-radius:2px;background:#9e15bf}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}
.stat-box{border:1px solid #f0eaf4;border-radius:9px;padding:10px 11px;background:#fdfbfe}
.stat-box em{display:block;font-style:normal;font-size:10.5px;color:#8b7f96;margin-bottom:4px}
.stat-box b{font-size:16px;color:#2b1436;letter-spacing:-.3px}
.stat-box b.up{color:#c2185b}
.chart{width:100%;height:auto;display:block}
.mock-list{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.mock-list .row{display:flex;align-items:center;gap:10px}
.mock-list .thumb{width:30px;height:30px;border-radius:7px;background:linear-gradient(135deg,#f2e6f8,#e6d3f0);flex:none}
.mock-list .bar{height:8px;border-radius:6px;background:#f1ecf5;flex:1}
.mock-list .bar b{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,#c25ad6,#9e15bf)}
.mock-list .val{font-size:11px;color:#8b7f96;font-variant-numeric:tabular-nums}
.sf-intro{background:var(--brand-50);padding-top:30px;padding-bottom:110px;text-align:center}
.sf-eyebrow{color:var(--brand);font-size:16px;font-weight:400}
.sf-intro__summary{max-width:1000px;margin:20px auto 0;color:var(--body);font-size:19.2px;line-height:1.6}
.sf-section-title{margin-top:20px;color:#111;font-size:clamp(2.3rem,4vw,2.75rem);font-weight:600;line-height:1.25}
.sf-intro__media{max-width:748px;margin:43px auto 0}
.sf-features{background:#fff;padding-top:24px;padding-bottom:96px}
.sf-features__list{display:flex;flex-direction:column;gap:98px}
.sf-feature{display:grid;align-items:center;grid-template-columns:1fr 1fr;gap:24px}
.sf-feature__copy{position:relative;top:-6px}
.sf-feature__title{display:flex;align-items:center;gap:12px;color:#000;font-size:clamp(1.75rem,3vw,2.2rem);font-weight:600;line-height:1.2}
.sf-check{flex:none;width:35px;height:35px;border-radius:50%;background:#f5e9f9;display:grid;place-items:center;color:#9e15bf}
.sf-feature__points{margin:24px 54px 0 0;padding-left:24px;list-style:disc outside;color:var(--body);font-size:19.2px;line-height:1.6}
.sf-feature__points li+li{margin-top:24px}
.sf-feature__visual{display:flex;align-items:center;justify-content:center}
.sf-feature__visual .mock{width:100%}
.sf-feature.rev .sf-feature__copy{order:2}
.sf-feature.rev .sf-feature__visual{order:1}
.sf-advantages{background:#fff;padding-top:110px;padding-bottom:120px}
.sf-adv-head{text-align:center}
.sf-adv-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px 24px;margin-top:58px;align-items:start}
.sf-adv-card{background:#fff;border-radius:30px;padding:24px;text-align:center;box-shadow:0 0 50px rgba(0,0,0,.102)}
.sf-adv-card__icon{width:24px;height:24px;margin:0 auto;color:var(--body);display:grid;place-items:center}
.sf-adv-card__title{margin-top:23px;color:#000;font-size:16px;font-weight:600;text-align:center}
.sf-adv-card__body{max-width:430px;margin:35px auto 0;color:var(--body);font-size:13.6px;line-height:1.5}
.sf-testimonials{background:#fbfbfe;padding-top:90px;padding-bottom:100px;min-height:731px}
.sf-testimonials .content-shell{text-align:center}
.sf-testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:12px}
.sf-testi-card{display:flex;flex-direction:column;min-height:100%;padding:30px;text-align:center;border:1px solid var(--card-line);background:#fff;transition:box-shadow .2s}
.sf-testi-card:hover{box-shadow:0 3px 40px rgba(188,207,219,.35)}
.sf-testi-quote{order:1;color:var(--brand);font-size:72px;line-height:1.5;height:108px}
.sf-testi-body{order:2;flex:1;margin-top:31px;color:#000;font-size:18px;line-height:1.5}
.sf-testi-meta{order:3;margin-top:31px;color:var(--muted);font-size:16px;line-height:1.6;font-weight:700}
.sf-footer{background:#000001;padding-top:88px;padding-bottom:33px;color:#fff}
.sf-footer__main{display:grid;grid-template-columns:2fr 1fr 1fr;gap:42px;min-height:235px;max-width:1264px;margin:0 auto}
.sf-footer__logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff}
.sf-footer__logo .sf-logo__mark{width:30px;height:30px;border-radius:7px;background:#9e15bf;display:grid;place-items:center;color:#fff;font-weight:900}
.sf-footer__desc{margin-top:20px;max-width:360px;color:#fffffe;font-size:16px;line-height:1.6}
.sf-footer h2{font-size:18px;font-weight:600;color:#fff}
.sf-footer ul{margin-top:14px;font-size:16px;line-height:1.75;color:#929ba8}
.sf-footer ul a{transition:color .2s}
.sf-footer ul a:hover{color:var(--brand-200)}
.sf-footer__bottom{max-width:1264px;margin:30px auto 0;padding-top:28px;border-top:1px solid rgba(255,255,255,.1);text-align:center;color:#fffffe;font-size:13.6px}
.sf-kb-section{background:var(--brand-50);padding:90px 0}
.sf-kb-layout{display:grid;grid-template-columns:248px 1fr;gap:40px;margin-top:36px;align-items:start;text-align:left}
.sf-kb-cats h3{font-size:14px;font-weight:700;color:#2b1436;margin-bottom:12px}
.sf-kb-cats a{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--body);transition:.2s}
.sf-kb-cats a:hover,.sf-kb-cats a.active{background:#fff;color:var(--brand)}
.sf-kb-cats a span{color:#a99bb0;font-size:12.5px}
.sf-kb-search{display:flex;gap:10px;margin-bottom:24px}
.sf-kb-search input{flex:1;border:1px solid #e8dfee;border-radius:10px;padding:12px 16px;font-size:14px;outline:none;color:var(--body);transition:border .2s}
.sf-kb-search input:focus{border-color:#c25ad6;box-shadow:0 0 0 3px rgba(158,21,191,.1)}
.sf-kb-search button{border:0;border-radius:10px;background:#9e15bf;color:#fff;padding:0 24px;font-size:14px;font-weight:600;cursor:pointer;transition:transform .18s}
.sf-kb-search button:hover{transform:translateY(-2px)}
.sf-kb-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.sf-kb-card{display:flex;flex-direction:column;background:#fff;border:1px solid #eee5f2;border-radius:14px;padding:24px;transition:transform .2s,box-shadow .2s}
.sf-kb-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(158,21,191,.1)}
.sf-kb-card .date{font-size:12.5px;color:#9b8fa3;margin-bottom:10px}
.sf-kb-card h4{font-size:16px;font-weight:700;color:#1e1b2e;line-height:1.5}
.sf-kb-card p{margin-top:10px;font-size:13.5px;color:var(--muted);line-height:1.7;flex:1}
.sf-kb-card .more{margin-top:14px;font-size:13px;color:var(--brand);font-weight:600}
.sf-pager{margin-top:38px;display:flex;justify-content:center;gap:8px;flex-wrap:wrap}
.sf-pager a{min-width:36px;height:36px;padding:0 10px;display:grid;place-items:center;border:1px solid #e8dfee;border-radius:8px;font-size:14px;color:var(--body);transition:.2s}
.sf-pager a:hover{border-color:#c25ad6;color:var(--brand)}
.sf-pager a.active{background:#9e15bf;border-color:#9e15bf;color:#fff}
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){[data-reveal]{opacity:1;transform:none;transition:none}
}
@media (min-width:1024px){.sf-features__list{padding-left:126px;padding-right:62px}
}
@media (max-width:1023px){.sf-nav,.sf-header__actions{display:none}
.sf-burger{display:inline-flex}
.sf-hero__inner{grid-template-columns:1fr;min-height:0;padding-top:44px;padding-bottom:54px;gap:36px}
.sf-feature{grid-template-columns:1fr;gap:26px}
.sf-feature.rev .sf-feature__copy{order:1}
.sf-feature.rev .sf-feature__visual{order:2}
.sf-feature__points{margin-right:0;font-size:17px}
.sf-feature__title{font-size:clamp(1.6rem,5vw,2rem)}
.sf-testi-grid{grid-template-columns:1fr}
.sf-advantages{padding-top:70px;padding-bottom:80px}
.sf-footer__main{grid-template-columns:1fr 1fr;gap:32px}
.sf-kb-layout{grid-template-columns:1fr;gap:28px}
.sf-kb-grid{grid-template-columns:1fr}
}
@media (max-width:640px){.content-shell{padding-left:1.25rem;padding-right:1.25rem}
.sf-home-title{font-size:2.2rem}
.sf-hero__summary{font-size:17px}
.sf-intro{padding-bottom:70px}
.sf-intro__summary{font-size:17px}
.sf-section-title{font-size:1.9rem}
.sf-eyebrow{font-size:15px}
.sf-features__list{gap:60px}
.sf-adv-grid{grid-template-columns:1fr;gap:26px}
.sf-testimonials{padding-top:60px;padding-bottom:66px;min-height:0}
.sf-footer__main{grid-template-columns:1fr;gap:34px}
.sf-footer{padding-top:56px}
.sf-action-primary,.sf-action-secondary{padding:14px 30px;font-size:15px}
.sf-kb-section{padding:60px 0}
.sf-kb-search{flex-direction:column}
.sf-kb-search button{padding:12px}
}

.sf-page-head{padding:56px 0 0;text-align:center}
.sf-crumbs{max-width:820px;margin:0 auto;padding:22px 0 0;font-size:13px;color:var(--muted)}
.sf-crumbs a{color:var(--muted)}
.sf-crumbs a:hover{color:var(--brand)}
.sf-article{max-width:820px;margin:0 auto;padding:20px 0 0}
.sf-article h1{font-size:clamp(1.8rem,3.2vw,2.3rem);font-weight:600;line-height:1.3;color:#111}
.sf-article__meta{margin-top:14px;display:flex;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--muted)}
.sf-article__meta .tag{color:var(--brand);font-weight:600}
.sf-article__body{margin-top:28px}
.sf-article__body p{margin-bottom:18px;font-size:16px;line-height:1.95;color:var(--body)}
.sf-article__body h2{margin:34px 0 16px;font-size:20px;font-weight:600;color:#111}
.sf-article__body ul{margin:0 0 18px 22px;list-style:disc;color:var(--body);font-size:16px;line-height:1.9}
.sf-article__body li{margin-bottom:8px}
.sf-article__cta{margin:46px 0 24px;padding:32px;border-radius:20px;background:var(--brand-50);text-align:center}
.sf-article__cta h3{font-size:20px;font-weight:600;color:#111}
.sf-article__cta p{margin:10px 0 20px;color:var(--body);font-size:15px}
.sf-related{max-width:820px;margin:10px auto 0;padding:34px 0 8px;border-top:1px solid #eee5f2}
.sf-related h3{font-size:16px;font-weight:600;color:#111;margin-bottom:16px}
.sf-related ul{margin:0;list-style:none}
.sf-related li{padding:9px 0;font-size:15px}
.sf-related a{color:#2b1436}
.sf-related a:hover{color:var(--brand)}
.sf-related .cat{color:var(--brand);font-size:12.5px;margin-right:8px}