:root{--brand: #336ffc;--brand-2: #007fff;--brand-3: #1394ff;--brand-deep: #085df6;--brand-grad: linear-gradient(135deg, #432eff 0%, #947afc 100%);--brand-grad-2: linear-gradient(135deg, #336ffc 0%, #13c2c2 100%);--ink: #0f172a;--ink-2: #3d3d3d;--muted: #565e6d;--faint: #8a94a6;--line: #e8eef7;--hero-bg: #d1e6fb;--alt-bg: linear-gradient(180deg, #f9faff 0%, #eaf1ff 100%);--alt-bg-2: linear-gradient(180deg, #f8faff 0%, #ebf7ff 100%);--card-shadow: 0 4px 20px 0 rgba(195, 206, 216, .5);--card-shadow-lg: 0 16px 40px -8px rgba(51, 111, 252, .18);--radius: 12px;--radius-lg: 18px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif}html{scroll-behavior:smooth}.lk-section{padding:72px 24px;position:relative}.lk-section--alt{background:var(--alt-bg)}.lk-section--alt2{background:var(--alt-bg-2)}.lk-container{max-width:1160px;margin:0 auto}.lk-eyebrow{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:13px;color:var(--brand-deep);background:#336ffc14;border:1px solid rgba(51,111,252,.2);letter-spacing:.02em}.lk-title{font-size:40px;line-height:1.2;letter-spacing:-.03em;color:var(--ink);font-weight:700;margin:18px 0 12px}.lk-title--center{text-align:center}.lk-sub{color:var(--muted);font-size:16px;line-height:1.8;margin:0 auto}.lk-sub--center{text-align:center;max-width:640px}.lk-num{color:var(--brand-2);font-weight:700}.lk-nav{position:sticky;top:0;z-index:100;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:#ffffffeb;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(232,238,247,.8)}.lk-nav__links{display:flex;align-items:center;gap:28px}.lk-nav__links a{color:var(--ink-2);font-size:15px;text-decoration:none;transition:color .2s}.lk-nav__links a:hover{color:var(--brand);text-decoration:none}.lk-drop{position:relative}.lk-drop__menu{position:absolute;top:calc(100% + 12px);left:50%;transform:translate(-50%);background:#fff;border:1px solid #e5eaf3;border-radius:12px;box-shadow:0 18px 44px -8px #0f172a29;padding:8px;min-width:158px;z-index:200}.lk-drop__menu:before{content:"";position:absolute;top:-6px;left:50%;transform:translate(-50%) rotate(45deg);width:10px;height:10px;background:#fff;border-left:1px solid #e5eaf3;border-top:1px solid #e5eaf3}.lk-drop__item{display:block;padding:9px 14px;border-radius:8px;color:#374151!important;font-size:14px;transition:background .15s,color .15s}.lk-drop__item:hover{background:#f0f5ff;color:#336ffc!important}.lk-drop__divider{height:1px;background:#eef2f9;margin:6px 4px}.lk-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.02em;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}.lk-hero{position:relative;overflow:hidden;background:var(--hero-bg);padding:88px 24px 72px}.lk-hero:before,.lk-hero:after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;pointer-events:none}.lk-hero:before{width:480px;height:480px;background:radial-gradient(circle,rgba(51,111,252,.35),transparent 65%);top:-160px;right:-80px}.lk-hero:after{width:420px;height:420px;background:radial-gradient(circle,rgba(147,122,252,.35),transparent 65%);bottom:-180px;left:-100px}.lk-hero__inner{position:relative;z-index:2;max-width:1160px;margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}.lk-hero h1{font-size:46px;line-height:1.22;letter-spacing:-.04em;color:var(--ink);font-weight:800;margin:0 0 18px}.lk-hero h1 .lk-grad-text{background:var(--brand-grad-2);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}.lk-hero__sub{color:var(--ink-2);font-size:16px;line-height:1.9;margin:0 0 30px;max-width:520px}.lk-hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}.lk-btn-primary{display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 26px;border-radius:10px;background:var(--brand);color:#fff;font-size:16px;font-weight:600;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 6px 18px #336ffc59}.lk-btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px #336ffc73}.lk-btn-ghost{display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 26px;border-radius:10px;background:#ffffffb3;color:var(--brand-deep);font-size:16px;font-weight:600;border:1px solid rgba(51,111,252,.35);cursor:pointer;transition:all .2s}.lk-btn-ghost:hover{background:#fff;border-color:var(--brand)}.lk-hero__stats{display:flex;gap:34px;flex-wrap:wrap}.lk-stat{display:flex;flex-direction:column}.lk-stat b{font-size:30px;color:var(--brand-2);letter-spacing:-.02em}.lk-stat span{font-size:13px;color:var(--muted);margin-top:2px}.lk-mock{background:#fff;border-radius:var(--radius-lg);box-shadow:0 24px 60px -12px #0f172a40;padding:22px;border:1px solid rgba(232,238,247,.9)}.lk-mock__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.lk-mock__dots{display:flex;gap:6px}.lk-mock__dots i{width:10px;height:10px;border-radius:50%;background:#dce4f0}.lk-mock__title{font-size:13px;color:var(--muted);font-weight:600}.lk-mock__statrow{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}.lk-mock__stat{background:linear-gradient(180deg,#f6f9ff,#edf4ff);border-radius:10px;padding:12px}.lk-mock__stat b{font-size:20px;color:var(--brand-2);display:block}.lk-mock__stat span{font-size:11px;color:var(--muted)}.lk-mock__bars{display:flex;align-items:flex-end;gap:12px;height:110px;padding:0 4px}.lk-mock__bar{flex:1;border-radius:6px 6px 0 0;background:linear-gradient(180deg,#5aa2ff,#336ffc);opacity:.85}.lk-mock__bar--muted{background:linear-gradient(180deg,#dce6f5,#c3d2ea)}.lk-mock__foot{margin-top:14px;display:flex;align-items:center;gap:10px;background:#f6f9ff;border-radius:10px;padding:10px 12px;font-size:12px;color:var(--muted)}.lk-mock__foot .lk-dot-blue{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px #336ffc26;flex-shrink:0}.lk-engines{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:30px}.lk-engine-pill{padding:8px 16px;border-radius:999px;background:#ffffffbf;border:1px solid rgba(51,111,252,.18);color:var(--ink-2);font-size:14px;font-weight:500}.lk-cloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:960px;margin:40px auto 0}.lk-pill{display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:999px;background:#fff;border:1px solid transparent;background-image:linear-gradient(#fff,#fff),linear-gradient(180deg,#cee6ffcc,#ffffffe6);background-origin:border-box;background-clip:padding-box,border-box;color:var(--ink-2);font-size:14px;box-shadow:0 2px 10px #c3ced859;transition:transform .2s,box-shadow .2s;cursor:default}.lk-pill:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2)}.lk-pill:hover{transform:translateY(-3px);box-shadow:0 8px 20px #336ffc2e}.lk-card{background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:26px;border:1px solid rgba(232,238,247,.8);transition:transform .25s,box-shadow .25s}.lk-card--hover:hover{transform:translateY(-6px);box-shadow:var(--card-shadow-lg)}.lk-card h3{font-size:18px;color:var(--ink);margin:14px 0 10px;letter-spacing:-.01em}.lk-card p{color:var(--muted);font-size:14px;line-height:1.75;margin:0}.lk-feature{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:40px 0}.lk-feature--flip .lk-feature__visual{order:2}.lk-feature__kicker{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--brand-deep);font-weight:600}.lk-feature h3{font-size:28px;letter-spacing:-.02em;color:var(--ink);margin:10px 0 12px}.lk-feature p{color:var(--muted);font-size:15px;line-height:1.85;margin-bottom:18px}.lk-feature__points{list-style:none;padding:0;margin:0}.lk-feature__points li{display:flex;align-items:flex-start;gap:10px;color:var(--ink-2);font-size:15px;padding:6px 0}.lk-feature__points li:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2);margin-top:9px;flex-shrink:0}.lk-feature__visual{position:relative}.lk-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:36px}.lk-flow__item{position:relative;background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:20px 16px;text-align:center}.lk-flow__num{width:30px;height:30px;border-radius:50%;background:var(--brand-grad);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;margin-bottom:12px}.lk-flow__item b{display:block;color:var(--ink);font-size:15px;margin-bottom:6px}.lk-flow__item span{color:var(--muted);font-size:12.5px;line-height:1.6}.lk-cases{overflow:hidden;position:relative}.lk-cases__track{display:flex;transition:transform .6s cubic-bezier(.22,1,.36,1)}.lk-case{flex:0 0 100%;padding:0 8px}.lk-case__card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--card-shadow);padding:36px 40px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;max-width:960px;margin:0 auto}.lk-case__num{font-size:56px;font-weight:800;letter-spacing:-.04em;background:var(--brand-grad-2);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;line-height:1}.lk-case__label{color:var(--muted);font-size:15px;margin:8px 0 14px}.lk-case__desc{color:var(--ink-2);font-size:14.5px;line-height:1.8}.lk-steps{list-style:none;padding:0;margin:0}.lk-steps li{display:flex;align-items:center;gap:8px;padding:7px 0;color:var(--ink-2);font-size:14px;border-bottom:1px dashed var(--line)}.lk-steps li:last-child{border-bottom:none}.lk-steps li b{color:var(--brand-deep)}.lk-steps li i{color:var(--brand-2);font-style:normal}.lk-cases__dots{display:flex;justify-content:center;gap:8px;margin-top:22px}.lk-cases__dots button{width:8px;height:8px;border-radius:50%;border:none;background:#c9d6ea;cursor:pointer;transition:all .25s}.lk-cases__dots button.is-active{width:24px;border-radius:999px;background:var(--brand)}.lk-trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:36px}.lk-pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}.lk-price{position:relative;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--card-shadow);padding:30px 26px;border:1px solid rgba(232,238,247,.9);transition:transform .25s,box-shadow .25s}.lk-price--hot{border:2px solid var(--brand);box-shadow:var(--card-shadow-lg);transform:translateY(-8px)}.lk-price:hover{transform:translateY(-6px)}.lk-price--hot:hover{transform:translateY(-10px)}.lk-price__tag{position:absolute;top:-13px;left:50%;transform:translate(-50%);background:var(--brand-grad);color:#fff;font-size:12px;font-weight:600;padding:4px 14px;border-radius:999px}.lk-price h4{font-size:17px;color:var(--ink);margin:0 0 8px}.lk-price__amount{font-size:36px;font-weight:800;color:var(--ink);letter-spacing:-.03em;margin-bottom:16px}.lk-price__amount small{font-size:14px;color:var(--muted);font-weight:400}.lk-price ul{list-style:none;padding:0;margin:0 0 22px}.lk-price ul li{padding:6px 0;color:var(--ink-2);font-size:14px;display:flex;gap:8px;align-items:center}.lk-price ul li:before{content:"✓";color:var(--brand);font-weight:700}.lk-faq{max-width:800px;margin:36px auto 0}.lk-footer{background:#000b17;color:#ffffffbf;padding:44px 24px}.lk-footer__inner{max-width:1160px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}.lk-footer .lk-logo{font-size:20px}.lk-footer__meta{font-size:13px;color:#ffffff80;line-height:1.9}.lk-footer__cta{font-size:15px}.lk-reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}.lk-reveal.lk-in{opacity:1;transform:none}.lk-faq-section{background:linear-gradient(180deg,#fdfdfd,#e9f1f8)}.lk-faq-list{display:flex;flex-direction:column;gap:20px;margin-top:40px;max-width:800px;margin-left:auto;margin-right:auto}.lk-faq-card{background:#fff;border-radius:10px;box-shadow:0 4px 10px #c2d0dc99;padding:27px 26px 27px 30px;cursor:pointer;transition:box-shadow .25s ease}.lk-faq-card:hover{box-shadow:0 8px 22px #336ffc29}.lk-faq-q{display:flex;align-items:center;gap:18px;font-size:18px;line-height:26px;font-weight:500;color:#3d3d3d}.lk-faq-q:before{content:"";width:6px;height:6px;border-radius:50%;background:#006fff;flex-shrink:0}.lk-faq-arrow{margin-left:auto;width:16px;flex-shrink:0;color:#3d3d3d;display:inline-flex;align-items:center;transition:transform .3s linear,color .3s ease}.lk-faq-card.is-open .lk-faq-arrow{transform:rotate(180deg);color:#0068ff}.lk-faq-answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s ease-in-out}.lk-faq-card.is-open .lk-faq-answer{grid-template-rows:1fr}.lk-faq-answer__inner{overflow:hidden}.lk-faq-answer__inner>div{padding-left:24px;padding-top:10px;font-size:14px;line-height:20px;color:#565e6d;text-align:justify}.lk-marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}.lk-marquee__track{display:flex;gap:20px;width:max-content;animation:lk-marquee 40s linear infinite}.lk-marquee:hover .lk-marquee__track{animation-play-state:paused}@keyframes lk-marquee{0%{transform:translate(0)}to{transform:translate(-50%)}}@media (max-width: 900px){.lk-hero__inner,.lk-feature,.lk-case__card{grid-template-columns:1fr;gap:28px}.lk-feature--flip .lk-feature__visual{order:0}.lk-trust-grid,.lk-pricing{grid-template-columns:1fr}.lk-flow{grid-template-columns:1fr 1fr}.lk-hero h1{font-size:34px}.lk-nav__links a:not(.lk-nav__cta){display:none}.lk-section{padding:48px 18px}.lk-title{font-size:30px}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1d39c4,#531dab)}.auth-card{width:400px;background:#fff;border-radius:12px;padding:40px 36px;box-shadow:0 12px 40px #00000040}.auth-card .auth-brand{text-align:center;margin-bottom:24px}.auth-card .auth-brand h1{margin:0 0 6px;font-size:22px;color:#1d39c4}.auth-card .auth-brand p{margin:0;color:#888;font-size:13px}.stat-card{text-align:center}.stat-card .stat-value{font-size:30px;font-weight:700;color:#1d39c4}.stat-card .stat-label{color:#888;font-size:13px;margin-top:4px}.section-title{font-size:16px;font-weight:600;margin:0 0 16px;display:flex;align-items:center;gap:8px}.admin-page{display:flex;flex-direction:column;gap:16px}.admin-stat{border-radius:12px;overflow:hidden;position:relative}.admin-stat__icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff;margin-bottom:12px}.admin-stat__value{font-size:28px;font-weight:700;color:#0f172a;letter-spacing:-.02em;line-height:1.2}.admin-stat__label{color:#8a94a6;font-size:13px;margin-top:4px}.admin-stat__foot{font-size:12px;color:#8a94a6;margin-top:8px}.grad-blue{background:linear-gradient(135deg,#336ffc,#1394ff)}.grad-purple{background:linear-gradient(135deg,#432eff,#947afc)}.grad-cyan{background:linear-gradient(135deg,#13c2c2,#36cfc9)}.grad-green{background:linear-gradient(135deg,#52c41a,#95de64)}.grad-orange{background:linear-gradient(135deg,#fa8c16,#ffc53d)}.grad-red{background:linear-gradient(135deg,#ff4d4f,#ff7875)}.admin-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.admin-head__title{font-size:20px;font-weight:700;color:#0f172a;letter-spacing:-.01em;margin:0}.admin-head__desc{color:#8a94a6;font-size:13px;margin-top:2px}.admin-card{border-radius:12px;box-shadow:0 1px 4px #0f172a0f}