:root{--navy:#112c3e;--deep:#17465c;--muted:#527486;--ice:#edfafa;--cyan:#30cbd0;--blue:#337ff1;--lime:#a8e87d;--white:rgba(255,255,255,.68);--line:rgba(255,255,255,.78);--shadow:0 30px 80px rgba(20,89,117,.17)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--navy);background:#dff5f4;font-family:"Microsoft YaHei UI","PingFang SC",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}body::before{content:"";position:fixed;inset:0;z-index:-3;background:radial-gradient(circle at 5% 8%,rgba(75,176,255,.36),transparent 26%),radial-gradient(circle at 94% 25%,rgba(168,232,125,.42),transparent 27%),radial-gradient(circle at 58% 92%,rgba(48,203,208,.28),transparent 36%),linear-gradient(150deg,#f4ffff,#dff4f2 48%,#ebf8ff)}body::after{content:"";position:fixed;inset:0;z-index:-2;opacity:.24;background-image:radial-gradient(rgba(17,76,99,.2) .7px,transparent .7px);background-size:18px 18px}
a{color:inherit;text-decoration:none}img{max-width:100%}h1,h2,h3,p{margin-top:0}:focus-visible{outline:3px solid #337ff1;outline-offset:4px}.container{width:min(1200px,calc(100% - 42px));margin-inline:auto}.skip{position:fixed;top:-60px;left:20px;z-index:99;padding:10px 16px;background:#fff;border-radius:999px}.skip:focus{top:16px}
.liquid{border:1px solid var(--line);background:linear-gradient(145deg,rgba(255,255,255,.73),rgba(255,255,255,.27));box-shadow:inset 1px 1px 0 rgba(255,255,255,.95),inset -1px -1px 0 rgba(66,138,166,.15),var(--shadow);backdrop-filter:blur(20px) saturate(155%)}
.site-header{position:sticky;top:0;z-index:50;padding:12px 0;background:rgba(230,250,249,.58);backdrop-filter:blur(18px)}.nav{min-height:70px;padding:9px 11px 9px 18px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-radius:999px}.brand-logo{width:150px;height:42px;padding:8px 12px;display:block;object-fit:contain;border-radius:999px;background:linear-gradient(135deg,#607ce9,#2b9dd3);box-shadow:0 10px 24px rgba(27,93,145,.22)}.nav-links{display:flex;gap:30px;color:#456a7c;font-size:13px;font-weight:850}.nav-links a:hover,.nav-links a[aria-current=page]{color:#0c8199}.nav-toggle{display:none;border:0;background:transparent;color:var(--navy);font-size:24px}.btn{min-width:144px;min-height:48px;padding:12px 22px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.75);border-radius:999px;background:linear-gradient(135deg,#2fcbd0,#337ff1);color:#fff;font-size:13px;font-weight:900;white-space:nowrap;word-break:keep-all;writing-mode:horizontal-tb;box-shadow:inset 0 1px rgba(255,255,255,.45),0 13px 28px rgba(34,135,177,.25);transition:.2s}.btn:hover{transform:translateY(-3px);box-shadow:inset 0 1px rgba(255,255,255,.45),0 17px 33px rgba(34,135,177,.3)}.btn-light{background:rgba(255,255,255,.45);color:var(--deep);box-shadow:inset 0 1px #fff,0 12px 26px rgba(35,106,133,.12)}.btn-lime{background:linear-gradient(135deg,#6bd4ae,#3fa2df)}
.hero{padding:78px 0 95px;overflow:hidden}.hero-shell{min-height:710px;padding:68px 70px;position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;border-radius:70px 180px 70px 180px}.hero-shell::before{content:"";position:absolute;inset:14px;border:1px solid rgba(255,255,255,.7);border-radius:58px 168px 58px 168px;pointer-events:none}.hero-copy,.hero-media{position:relative;z-index:2}.kicker{display:inline-flex;align-items:center;gap:10px;margin-bottom:21px;color:#16849a;font-size:11px;font-weight:950;letter-spacing:.13em}.kicker::before{content:"";width:29px;height:9px;border-radius:100% 0 100% 0;background:linear-gradient(90deg,var(--cyan),var(--blue))}h1{margin-bottom:24px;font-size:clamp(52px,6vw,86px);font-weight:950;line-height:.98;letter-spacing:-.065em}.wash{color:transparent;background:linear-gradient(100deg,#109fb1,#386ce5 58%,#5ba961);background-clip:text;-webkit-background-clip:text}.hero-copy>p{max-width:580px;color:var(--muted);font-size:17px}.actions{display:flex;flex-wrap:wrap;gap:10px}.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:24px}.tag{padding:7px 12px;border:1px solid rgba(255,255,255,.9);border-radius:999px;background:rgba(255,255,255,.38);color:#567585;font-size:10px;font-weight:850;box-shadow:inset 0 1px #fff}.hero-media{align-self:center;height:auto;padding:0;margin:0}.hero-media img{filter:drop-shadow(0 38px 38px rgba(20,91,113,.22))}.bubble{position:absolute;z-index:3;display:grid;place-items:center;border-radius:58% 42% 65% 35%/45% 61% 39% 55%;animation:float 7s ease-in-out infinite}.bubble-a{width:100px;height:88px;right:4%;top:8%;color:#0f7d94;font-size:11px;font-weight:900}.bubble-b{width:130px;height:106px;left:48%;bottom:5%;color:#155b71;font-size:12px;font-weight:900;animation-delay:-3s}@keyframes float{50%{transform:translateY(-12px) rotate(3deg)}}
.metrics{padding:35px 0 0}.metric-row{display:grid;grid-template-columns:1.2fr repeat(5,1fr);align-items:center}.metric-intro{padding-right:26px}.metric-intro strong{display:block;font-size:19px}.metric-intro span{color:var(--muted);font-size:12px}.metric{padding:15px;text-align:center;border-left:1px solid rgba(35,100,126,.13)}.metric b{display:block;font-size:26px;line-height:1.2}.metric span{color:#6d8996;font-size:10px}
.section{padding:120px 0}.head{max-width:760px;margin-bottom:50px}.head.center{margin-inline:auto;text-align:center}.head.center .kicker{justify-content:center}h2{margin-bottom:17px;font-size:clamp(39px,4.6vw,63px);font-weight:950;line-height:1.05;letter-spacing:-.055em}.lead{color:var(--muted);font-size:17px}
.current{display:grid;grid-template-columns:1.35fr .65fr;gap:16px}.current-main{min-height:510px;padding:45px;position:relative;overflow:hidden;border-radius:72px 28px 72px 28px}.current-main h3{max-width:500px;font-size:34px;line-height:1.2}.current-main p{max-width:520px;color:var(--muted)}.flow-lines{position:absolute;right:-40px;bottom:-55px;width:470px;height:340px;border:2px solid rgba(48,203,208,.35);border-radius:50%;transform:rotate(-15deg)}.flow-lines::before,.flow-lines::after{content:"";position:absolute;border:2px solid rgba(51,127,241,.23);border-radius:50%}.flow-lines::before{inset:42px}.flow-lines::after{inset:90px;background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.9),rgba(48,203,208,.45) 40%,rgba(51,127,241,.18) 73%);box-shadow:0 0 60px rgba(48,203,208,.27)}.current-side{display:grid;gap:16px}.feature{padding:27px;border-radius:28px 60px 28px 60px}.feature-icon{width:47px;height:47px;margin-bottom:18px;display:grid;place-items:center;border-radius:55% 45% 60% 40%;background:linear-gradient(135deg,#30cbd0,#337ff1);color:#fff;font-weight:950}.feature h3{margin-bottom:5px}.feature p{margin:0;color:var(--muted);font-size:13px}
.scene-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.scene{min-height:250px;padding:28px;display:flex;flex-direction:column;justify-content:space-between;border-radius:55px 24px 55px 24px}.scene:nth-child(even){transform:translateY(28px)}.scene b{color:#16849a;font-size:10px;letter-spacing:.1em}.scene h3{margin:0;font-size:25px}.scene p{color:var(--muted);font-size:13px}
.content-pool{display:grid;grid-template-columns:.8fr 1.2fr;gap:18px}.article-menu{padding:18px;border-radius:45px}.article-link{padding:24px;display:block;border-bottom:1px solid rgba(30,100,127,.12)}.article-link:last-child{border-bottom:0}.article-link b{display:block;font-size:15px}.article-link span{color:var(--muted);font-size:11px}.article-feature{min-height:500px;padding:46px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden;border-radius:35px 90px 35px 90px}.article-feature::before{content:"LINE";position:absolute;right:-18px;top:-45px;color:rgba(255,255,255,.52);font-size:190px;font-weight:950;line-height:1}.article-feature h3{max-width:630px;margin-bottom:12px;font-size:38px;line-height:1.18}.article-feature p{max-width:600px;color:var(--muted)}.text-link{color:#087f98;font-size:13px;font-weight:900}
.device-wave{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}.device-media{align-self:center;height:auto;padding:0;margin:0}.device-media img{filter:drop-shadow(0 35px 42px rgba(20,89,117,.2))}.proofs{display:grid;gap:10px;margin-top:27px}.proof{padding:19px 22px;display:grid;grid-template-columns:92px 1fr;gap:15px;border-radius:999px}.proof b{color:#0f8196;font-size:11px}.proof strong{display:block;font-size:14px}.proof span{color:var(--muted);font-size:12px}
.voices{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:14px}.voice{padding:34px;border-radius:28px 66px 28px 66px}.voice:first-child{grid-row:span 2;min-height:455px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(145deg,rgba(255,255,255,.74),rgba(75,197,208,.25))}.voice blockquote{margin:23px 0;color:#345f72;font-size:16px}.voice:first-child blockquote{font-size:25px;line-height:1.55}.stars{color:#138da6;letter-spacing:3px}.person{display:flex;align-items:center;gap:11px}.avatar{width:44px;height:44px;display:grid;place-items:center;border-radius:60% 40% 65% 35%;background:linear-gradient(135deg,#30cbd0,#337ff1);color:#fff;font-weight:900}.person span{display:block;color:var(--muted);font-size:11px}
.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.price{padding:38px;border-radius:52px 25px 52px 25px}.price.featured{background:linear-gradient(145deg,rgba(55,141,237,.82),rgba(37,197,190,.72));color:#fff;transform:translateY(-14px)}.plan{font-size:11px;font-weight:950;letter-spacing:.1em}.amount{margin:20px 0 5px;font-size:52px;font-weight:950;line-height:1}.amount small{font-size:13px}.price p{min-height:45px;color:var(--muted);font-size:13px}.price.featured p{color:rgba(255,255,255,.82)}.price ul{padding:20px 0 0;margin:22px 0;list-style:none;border-top:1px solid rgba(26,94,121,.14)}.price li{margin:10px 0;font-size:13px}.price li::before{content:"✓";margin-right:8px;color:#0a9d9c;font-weight:950}.price.featured li::before{color:#dffff4}.price .btn{width:100%}.disclaimer{margin-top:22px;color:var(--muted);text-align:center;font-size:11px}
.faq{max-width:930px;margin:auto}.faq details{margin-bottom:10px;border-radius:32px}.faq summary{padding:22px 66px 22px 25px;position:relative;cursor:pointer;list-style:none;font-weight:900}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"+";position:absolute;right:12px;top:11px;width:43px;height:43px;display:grid;place-items:center;border-radius:55% 45% 60% 40%;background:linear-gradient(135deg,#30cbd0,#337ff1);color:#fff;font-size:22px}.faq details[open] summary::after{content:"−"}.faq details p{padding:0 65px 25px 25px;margin:0;color:var(--muted)}
.cta{padding:55px 0 120px}.cta-shell{padding:70px;position:relative;overflow:hidden;border-radius:95px 35px 95px 35px;background:linear-gradient(135deg,rgba(48,203,208,.68),rgba(51,127,241,.56));color:#fff;box-shadow:var(--shadow)}.cta-shell::after{content:"";position:absolute;width:280px;height:280px;right:-35px;top:-85px;border:1px solid rgba(255,255,255,.55);border-radius:45% 55% 65% 35%;box-shadow:inset 0 0 60px rgba(255,255,255,.22)}.cta-shell h2,.cta-shell p,.cta-shell .actions,.cta-shell .kicker{position:relative;z-index:2;max-width:720px}.cta-shell .kicker,.cta-shell p{color:rgba(255,255,255,.84)}
.site-footer{padding:70px 0 25px;background:rgba(237,252,251,.55);border-top:1px solid rgba(36,101,127,.1)}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:42px}.footer-intro p{max-width:280px;margin-top:18px;color:var(--muted);font-size:13px}.footer-col h3{font-size:13px}.footer-col a{display:block;margin:9px 0;color:var(--muted);font-size:13px}.footer-bottom{margin-top:48px;padding-top:19px;display:flex;justify-content:space-between;border-top:1px solid rgba(36,101,127,.1);color:#7893a0;font-size:11px}
.page-hero{padding:125px 0 85px}.page-hero-box{padding:70px;position:relative;overflow:hidden;text-align:center;border-radius:65px 160px 65px 160px}.page-hero h1{font-size:clamp(50px,5.8vw,78px)}.page-hero p{max-width:680px;margin:0 auto 28px;color:var(--muted)}.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.download-card{padding:30px;border-radius:45px 23px 45px 23px}.os{width:62px;height:62px;margin-bottom:25px;display:grid;place-items:center;border-radius:60% 40% 65% 35%;background:linear-gradient(135deg,#30cbd0,#337ff1);color:#fff;font-weight:950}.download-card h2{font-size:24px}.download-card p{min-height:48px;color:var(--muted);font-size:13px}.download-card .btn{width:100%}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.step{padding:31px;border-radius:27px 55px 27px 55px}.step b{color:#15889c;font-size:11px}
.help-layout{display:grid;grid-template-columns:255px 1fr;gap:65px;align-items:start}.help-menu{position:sticky;top:105px;padding:20px;border-radius:42px}.help-menu strong{display:block;padding:10px 13px}.help-menu a{display:block;padding:9px 13px;border-radius:999px;color:var(--muted);font-size:13px}.help-menu a:hover{background:rgba(255,255,255,.55);color:#087e96}.help-content article{padding:0 0 55px;margin-bottom:55px;border-bottom:1px solid rgba(24,94,120,.12);scroll-margin-top:110px}.help-content h2{font-size:40px}.help-content p,.help-content li{color:var(--muted)}.notice{padding:20px 22px;border-left:4px solid var(--cyan);border-radius:12px 32px 12px 32px;background:rgba(255,255,255,.48)}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media(max-width:980px){.nav-links{display:none;position:absolute;top:90px;left:22px;right:22px;padding:20px;flex-direction:column;border-radius:28px;background:#efffff;box-shadow:var(--shadow)}.nav-links.open{display:flex}.nav-toggle{display:block}.nav>.btn{display:none}.hero-shell{grid-template-columns:1fr;border-radius:50px 100px 50px 100px}.metric-row{grid-template-columns:repeat(3,1fr)}.metric-intro{grid-column:span 3;margin-bottom:15px}.current{grid-template-columns:1fr}.current-side{grid-template-columns:1fr 1fr}.scene-strip{grid-template-columns:1fr 1fr}.content-pool,.device-wave{grid-template-columns:1fr}.voices{grid-template-columns:1fr 1fr}.voice:first-child{grid-row:auto;grid-column:span 2}.download-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}@media(max-width:700px){.container{width:min(100% - 28px,1200px)}.section{padding:85px 0}.hero{padding-top:55px}.hero-shell{padding:52px 25px;border-radius:40px 70px 40px 70px}h1{font-size:49px}.bubble{display:none}.metric-row,.current-side,.scene-strip,.voices,.prices,.download-grid,.steps{grid-template-columns:1fr}.metric-intro,.voice:first-child{grid-column:auto}.metric{border-left:0;border-top:1px solid rgba(35,100,126,.1)}.scene:nth-child(even),.price.featured{transform:none}.cta-shell{padding:50px 28px;border-radius:60px 25px 60px 25px}.footer-grid{grid-template-columns:1fr 1fr}.footer-intro{grid-column:span 2}.footer-bottom{flex-direction:column;gap:8px}.help-layout{grid-template-columns:1fr}.help-menu{position:static}}
/* Natural hero imagery */
.hero-shell{align-items:center}.hero-media{align-self:center;height:auto;padding:0;margin-top:0;margin-bottom:0;overflow:visible;transform:none;clip-path:none}.hero-media img{display:block;width:100%;height:auto;min-height:0;max-height:none;margin:0;padding:0;object-fit:contain;object-position:center;transform:none;clip-path:none}.device-wave{align-items:center}.device-media{align-self:center;height:auto;padding:0;margin-top:0;margin-bottom:0;overflow:visible;transform:none;clip-path:none}.device-media img{display:block;width:100%;height:auto;min-height:0;max-height:none;margin:0;padding:0;object-fit:contain;object-position:center;transform:none;clip-path:none}