:root{--ink:#102a43;--ink-soft:#486581;--muted:#6b7c93;--blue:#246bce;--blue-dark:#1553a6;--blue-light:#eaf3ff;--line:#dbe8f5;--surface:#f4f8fc;--white:#fff;--radius:18px;--radius-sm:12px;--shadow:0 12px 32px rgba(23,73,119,.08);--shadow-hover:0 18px 40px rgba(23,73,119,.13);--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:82px}body{margin:0;background:var(--white);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}.icon-sprite{display:none}a{color:inherit;text-decoration:none}button{font:inherit}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8}.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}.reveal.visible{opacity:1;transform:none}.reveal-delay{transition-delay:.12s}.reveal-delay-2{transition-delay:.22s}
#navbar{position:sticky;top:0;z-index:20;height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,28px);background:rgba(255,255,255,.92);border-bottom:1px solid transparent;backdrop-filter:blur(12px);transition:border-color .2s,box-shadow .2s}.nav-logo,.footer-logo{display:inline-flex;align-items:center;gap:9px;font-weight:800;color:var(--ink);letter-spacing:-.02em}.nav-logo svg,.footer-logo svg{width:25px;height:25px;color:var(--blue);stroke-width:2.3}.nav-menu{display:flex;align-items:center;gap:6px}.nav-menu a{padding:8px 12px;border-radius:8px;color:var(--ink-soft);font-size:.91rem;font-weight:650;transition:color .2s,background .2s}.nav-menu a:hover,.nav-menu a:focus-visible{color:var(--blue);background:var(--blue-light)}.nav-cta,.btn.primary,.buy:not(.outline-buy),#float-cta a{display:inline-flex;align-items:center;justify-content:center;gap:9px;background:var(--blue);color:#fff;border:1px solid var(--blue);font-weight:750;transition:background .2s,transform .2s,box-shadow .2s}.nav-cta{padding:9px 14px;border-radius:9px;font-size:.88rem}.nav-cta svg,.btn svg,.buy svg,#float-cta svg,.footer-cta svg{width:17px;height:17px}.nav-cta:hover,.btn.primary:hover,.buy:not(.outline-buy):hover,#float-cta a:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-1px);box-shadow:0 7px 15px rgba(36,107,206,.2)}.nav-toggle{display:none;width:40px;height:40px;border:0;border-radius:8px;background:var(--blue-light);color:var(--blue);cursor:pointer}.nav-toggle svg{width:21px;height:21px}
section{padding:104px max(5vw,28px)}.surface-section{background:var(--surface)}.section-head{max-width:640px;margin:0 auto 52px;text-align:center}.eyebrow{display:flex;align-items:center;gap:8px;margin:0 0 14px;color:var(--blue);font-size:.72rem;font-weight:800;letter-spacing:.13em}.section-head .eyebrow{justify-content:center}.eyebrow span{width:7px;height:7px;border-radius:50%;background:var(--blue)}.section-head h2{margin:0 0 13px;font-size:clamp(2rem,3.6vw,3rem);line-height:1.18;letter-spacing:-.045em}.section-head em{font-style:normal;color:var(--blue)}.section-head>p:last-child{margin:0;color:var(--ink-soft);font-size:1rem}
#hero{padding-top:76px;padding-bottom:78px;background:linear-gradient(112deg,#fff 0%,#fff 55%,#f0f7ff 100%);overflow:hidden}.hero-shell{display:grid;grid-template-columns:minmax(0,1.07fr) minmax(380px,.93fr);align-items:center;gap:68px;max-width:var(--max);margin:auto}.hero-copy .eyebrow{margin-bottom:19px}.hero-copy h1{max-width:680px;margin:0;color:var(--ink);font-size:clamp(3rem,6vw,5.45rem);line-height:1.04;letter-spacing:-.07em}.hero-copy h1 strong{font-weight:800;color:var(--blue)}.hero-subtitle{max-width:600px;margin:24px 0;color:var(--ink-soft);font-size:1.07rem}.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 16px;max-width:620px;margin:0;padding:0;list-style:none}.hero-points li{display:flex;align-items:center;gap:8px;color:var(--ink);font-size:.9rem;font-weight:650}.hero-points svg{width:18px;height:18px;color:var(--blue)}.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 18px;border-radius:10px;font-size:.95rem}.btn.secondary{border:1px solid var(--line);background:var(--white);color:var(--ink);font-weight:700;transition:border-color .2s,background .2s}.btn.secondary:hover{border-color:#a9c8e9;background:#f8fbff}.trust-panel{position:relative;padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}.trust-panel:before{position:absolute;inset:0 0 auto;height:4px;border-radius:var(--radius) var(--radius) 0 0;background:var(--blue);content:""}.panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:27px}.panel-kicker{color:var(--muted);font-size:.67rem;font-weight:800;letter-spacing:.12em}.status-dot{display:inline-flex;align-items:center;gap:6px;color:#267b52;font-size:.75rem;font-weight:750}.status-dot:before{width:7px;height:7px;border-radius:50%;background:#38a169;content:""}.trust-panel h2{max-width:320px;margin:0 0 27px;font-size:1.55rem;line-height:1.32;letter-spacing:-.035em}.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.hero-stats>div{min-height:110px;padding:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.hero-stats strong{display:block;color:var(--blue);font-size:1.68rem;line-height:1.2;letter-spacing:-.04em}.hero-stats span{display:block;margin-top:5px;color:var(--muted);font-size:.75rem;font-weight:600}.panel-footer{display:flex;align-items:center;gap:8px;margin-top:21px;color:var(--muted);font-size:.78rem;font-weight:600}.panel-footer svg{width:16px;height:16px;color:var(--blue)}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:var(--max);margin:auto}.adv-card{min-height:232px;padding:24px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white);transition:transform .24s,box-shadow .24s,border-color .24s}.adv-card:hover{border-color:#bdd6ef;box-shadow:var(--shadow-hover);transform:translateY(-4px)}.adv-icon{display:grid;place-items:center;width:42px;height:42px;margin-bottom:19px;border-radius:10px;background:var(--blue-light);color:var(--blue)}.adv-icon svg{width:21px;height:21px}.adv-card h3{margin:0 0 8px;font-size:1rem;letter-spacing:-.02em}.adv-card p{margin:0;color:var(--ink-soft);font-size:.84rem;line-height:1.72}.adv-card .num{float:right;margin:-2px 0 0;color:#b7c7d8;font-size:.74rem;font-weight:750;letter-spacing:.08em}
.tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin:-14px auto 30px}.tabs button{min-height:38px;padding:7px 15px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--ink-soft);font-size:.84rem;font-weight:700;cursor:pointer;transition:all .2s}.tabs button:hover,.tabs button.active{border-color:var(--blue);background:var(--blue);color:#fff}.usecase-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;max-width:940px;margin:auto}.usecase-card{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:138px;padding:18px 10px;border:1px solid var(--line);border-radius:12px;background:var(--white);text-align:center;transition:transform .2s,box-shadow .2s}.usecase-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.usecase-icon{display:grid;place-items:center;width:38px;height:38px;margin-bottom:12px;border-radius:50%;background:var(--blue-light);color:var(--blue)}.usecase-icon svg{width:19px;height:19px}.usecase-card b{font-size:.89rem}.usecase-card small{margin-top:3px;color:var(--muted);font-size:.72rem}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;align-items:stretch;max-width:1040px;margin:auto}.price-card{position:relative;display:flex;flex-direction:column;padding:29px 25px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white);transition:box-shadow .2s,transform .2s}.price-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}.price-card.featured{border:2px solid var(--blue);box-shadow:0 14px 32px rgba(36,107,206,.12)}.plan-badge{position:absolute;top:-13px;left:20px;padding:4px 9px;border-radius:6px;background:var(--blue);color:#fff;font-size:.7rem;font-weight:800}.plan-name{font-size:1rem;font-weight:800}.price{margin:11px 0 5px;color:var(--ink);font-size:2.75rem;font-weight:800;line-height:1;letter-spacing:-.06em}.price sup{font-size:1.15rem;vertical-align:top;letter-spacing:0}.price small{color:var(--muted);font-size:.8rem;font-weight:650;letter-spacing:0}.plan-description{min-height:50px;margin:0;color:var(--ink-soft);font-size:.84rem}.buy{margin:23px 0 18px;min-height:43px;padding:9px;border-radius:8px;font-size:.86rem}.outline-buy{display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid #a5c4e5;background:var(--white);color:var(--blue);font-weight:750;transition:all .2s}.outline-buy:hover{border-color:var(--blue);background:var(--blue-light)}.price-card ul{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}.price-card li{position:relative;padding:9px 0 9px 19px;border-bottom:1px solid #edf3f8;color:var(--ink-soft);font-size:.8rem}.price-card li:before{position:absolute;left:2px;top:14px;width:7px;height:4px;border-bottom:1.5px solid var(--blue);border-left:1.5px solid var(--blue);transform:rotate(-45deg);content:""}.pricing-note{margin:28px 0 0;text-align:center;color:var(--muted);font-size:.82rem}.pricing-note b{color:var(--blue)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:54px;max-width:940px;margin:auto}.steps article{position:relative;text-align:center}.steps article:not(:last-child):after{position:absolute;top:28px;right:-39px;width:25px;height:1px;background:#bcd3eb;content:""}.step-icon{position:relative;display:grid;place-items:center;width:58px;height:58px;margin:0 auto 19px;border-radius:50%;background:var(--white);color:var(--blue);box-shadow:0 0 0 7px var(--blue-light)}.step-icon svg{width:24px;height:24px}.step-icon span{position:absolute;right:-11px;bottom:-6px;display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:var(--blue);color:#fff;font-size:.65rem;font-weight:800}.steps h3{margin:0 0 8px;font-size:1rem}.steps p{max-width:250px;margin:auto;color:var(--ink-soft);font-size:.84rem}.platforms{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;max-width:980px;margin:46px auto 0}.platforms span{padding:6px 10px;border:1px solid var(--line);border-radius:6px;background:var(--white);color:var(--ink-soft);font-size:.74rem;font-weight:600}
.reviews{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:var(--max);margin:auto}.review{padding:23px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white)}.review-score{color:var(--blue);font-size:.73rem;font-weight:800;letter-spacing:.08em}.review p{min-height:102px;margin:14px 0 19px;color:var(--ink-soft);font-size:.84rem;line-height:1.78}.author{display:flex;align-items:center;gap:10px}.avatar{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--blue-light);color:var(--blue);font-size:.8rem}.author b{font-size:.82rem}.author small{display:block;margin-top:2px;color:var(--muted);font-size:.69rem}.faq-list{max-width:850px;margin:auto}.faq{margin:9px 0;border:1px solid var(--line);border-radius:10px;background:var(--white);overflow:hidden}.faq button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:20px;padding:17px 20px;border:0;background:transparent;color:var(--ink);font-size:.92rem;font-weight:700;text-align:left;cursor:pointer}.faq button b{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--blue-light);color:var(--blue);font-size:1.05rem;font-weight:500;transition:transform .2s}.faq p{display:grid;grid-template-rows:0fr;margin:0;color:var(--ink-soft);font-size:.86rem;transition:grid-template-rows .25s}.faq p span{overflow:hidden;padding:0 20px}.faq.open p{grid-template-rows:1fr}.faq.open p span{padding-bottom:18px}.faq.open button b{transform:rotate(45deg)}
#float-cta{position:fixed;right:22px;bottom:22px;z-index:12}#float-cta a{min-height:44px;padding:10px 14px;border-radius:9px;font-size:.84rem;box-shadow:0 9px 22px rgba(36,107,206,.22)}footer{padding:27px max(5vw,28px);border-top:1px solid var(--line);background:#fff}.footer-simple{display:flex;align-items:center;justify-content:space-between;gap:22px;max-width:var(--max);margin:auto}.footer-simple nav{display:flex;gap:19px;margin-left:auto}.footer-simple nav a{color:var(--ink-soft);font-size:.8rem;font-weight:650}.footer-simple nav a:hover{color:var(--blue)}.footer-cta{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:.82rem;font-weight:750}.footer-cta svg{width:16px;height:16px}
*:focus-visible{outline:3px solid rgba(36,107,206,.3);outline-offset:3px}@media(max-width:1020px){.nav-menu{gap:0}.nav-menu a{padding:8px 8px}.hero-shell{grid-template-columns:1fr;gap:42px}.hero-copy{max-width:680px}.trust-panel{max-width:680px}.adv-grid{grid-template-columns:repeat(2,1fr)}.reviews{grid-template-columns:repeat(2,1fr)}.usecase-grid{grid-template-columns:repeat(4,1fr)}}@media(max-width:700px){html{scroll-padding-top:72px}#navbar{height:64px;padding:0 20px}.nav-menu{position:absolute;top:64px;right:16px;left:16px;display:none;gap:2px;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:var(--shadow)}.nav-menu.open{display:grid}.nav-menu a{padding:10px}.nav-toggle{display:grid;place-items:center}.nav-cta{display:none}section{padding:72px 20px}.section-head{margin-bottom:35px}.section-head h2{font-size:2rem}.hero-copy h1{font-size:3.15rem}.hero-subtitle{font-size:.96rem}.hero-points{grid-template-columns:1fr;gap:8px}.hero-btns{margin-top:25px}.btn{width:100%}.trust-panel{padding:22px}.hero-stats>div{min-height:92px;padding:14px}.hero-stats strong{font-size:1.38rem}.adv-grid,.pricing-grid,.steps,.reviews{grid-template-columns:1fr}.adv-card{min-height:auto}.usecase-grid{grid-template-columns:repeat(3,1fr);gap:9px}.usecase-card{min-height:120px}.price-card.featured{order:-1}.plan-description{min-height:0}.steps{gap:36px}.steps article:not(:last-child):after{display:none}.review p{min-height:0}.footer-simple{align-items:flex-start;flex-direction:column}.footer-simple nav{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px}.footer-cta{padding:8px 0}.reveal{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}