:root{color-scheme:light dark;--icon-violet:#635bff;--icon-cyan:#12d1dd;--icon-green:#58f567;--icon-magenta:#e900e5;--icon-red:#ff4145;--accent:var(--icon-violet);--accent-strong:#4f46cf;--accent-soft:#eeedff;--bg:#f7f7fb;--surface:rgba(255,255,255,.86);--solid:#fff;--muted-bg:#f0eff7;--text:#15141c;--muted:#5e5b69;--line:rgba(31,27,58,.13);--shadow:0 24px 70px rgba(76,65,173,.14);--xl:36px;--lg:26px;--md:18px}
@media(prefers-color-scheme:dark){:root{--accent:#8d88ff;--accent-strong:#bbb8ff;--accent-soft:#292657;--bg:#0c0b12;--surface:rgba(25,24,34,.86);--solid:#191821;--muted-bg:#24222e;--text:#f7f6ff;--muted:#b3b1be;--line:rgba(229,226,255,.14);--shadow:0 28px 80px rgba(0,0,0,.42)}}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 15% 8%,rgba(99,91,255,.13),transparent 30rem),radial-gradient(circle at 88% 24%,rgba(18,209,221,.1),transparent 34rem),radial-gradient(circle at 12% 78%,rgba(233,0,229,.055),transparent 30rem),radial-gradient(circle at 92% 88%,rgba(88,245,103,.07),transparent 28rem),var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%;height:auto}a{color:inherit}button,summary,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.container{width:min(1120px,calc(100% - 40px));margin-inline:auto}
.skip-link{position:fixed;z-index:100;top:10px;left:10px;padding:10px 16px;border-radius:999px;background:var(--text);color:var(--bg);transform:translateY(-160%);transition:transform .2s}.skip-link:focus{transform:translateY(0)}
.site-header{position:sticky;z-index:30;top:0;background:var(--bg);background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(22px) saturate(150%);-webkit-backdrop-filter:blur(22px) saturate(150%)}.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-weight:800;text-decoration:none;letter-spacing:-.02em}.brand img{width:42px;height:42px;border-radius:11px}.brand small{margin-left:4px;color:var(--muted);font-size:.72em;font-weight:600}.site-nav{display:flex;align-items:center;gap:6px}.site-nav a{padding:8px 12px;border-radius:999px;color:var(--muted);font-size:14px;font-weight:700;text-decoration:none}.site-nav a:hover{background:var(--surface);color:var(--text)}.site-nav .nav-cta{margin-left:4px;padding-inline:18px;background:linear-gradient(135deg,var(--icon-violet),#4f46cf);color:#fff}
.hero{position:relative;overflow:hidden;padding:92px 0 112px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(340px,.72fr);align-items:center;gap:clamp(52px,8vw,108px)}.eyebrow{margin:0 0 16px;color:var(--accent-strong);font-size:14px;font-weight:800;letter-spacing:.08em}.hero h1{margin:0;font-size:clamp(46px,6.6vw,78px);letter-spacing:-.065em;line-height:1.06}.hero h1 span{display:block}.hero h1 .question{color:var(--accent-strong)}.hero-lead{max-width:640px;margin:26px 0 0;color:var(--muted);font-size:clamp(17px,2vw,21px);line-height:1.9}.hero-actions{display:flex;align-items:center;gap:18px;margin-top:32px;flex-wrap:wrap}.app-store-badge{border-radius:9px}.app-store-badge img{width:174px;height:auto}.hero-meta{margin:14px 0 0;color:var(--muted);font-size:13px}
.hero-visual{position:relative;width:min(100%,390px);justify-self:center}.hero-visual:before,.hero-visual:after{content:"";position:absolute;z-index:-1;border-radius:999px;transform:rotate(-18deg)}.hero-visual:before{width:360px;height:120px;top:12%;right:-42%;background:linear-gradient(90deg,rgba(99,91,255,.62),rgba(18,209,221,.56),rgba(88,245,103,.46))}.hero-visual:after{width:330px;height:130px;bottom:8%;left:-48%;background:linear-gradient(90deg,rgba(255,65,69,.5),rgba(233,0,229,.42),rgba(99,91,255,.48))}.phone{padding:10px;border:1px solid var(--line);border-radius:50px;background:rgba(255,255,255,.55);box-shadow:var(--shadow);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px)}.phone-screen{overflow:hidden;aspect-ratio:660/1135;border-radius:41px;background:#eef2f5}.phone-screen img{width:100%;height:100%;object-fit:cover;object-position:top}
.section{padding:104px 0}.section-compact{padding:74px 0}.section-header{max-width:760px;margin-bottom:46px}.section-header h2,.manifesto h2,.developer-copy h2,.price-copy h2,.final-cta h2{margin:0;font-size:clamp(34px,5vw,58px);letter-spacing:-.05em;line-height:1.18}.section-header p,.manifesto p,.developer-copy p,.price-copy p{margin:18px 0 0;color:var(--muted);font-size:17px}
.manifesto-wrap{overflow:hidden;border-radius:var(--xl);background:#111719;color:#f6fafb;box-shadow:var(--shadow)}.manifesto{position:relative;padding:clamp(42px,7vw,82px)}.manifesto:after{content:"生";position:absolute;right:-20px;bottom:-110px;color:rgba(255,255,255,.045);font-size:clamp(260px,46vw,520px);font-weight:900;line-height:1}.manifesto p{position:relative;z-index:1;max-width:720px;color:#b9c4c7}.manifesto strong{color:#fff}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.feature-card,.trust-card,.document-card,.price-card{border:1px solid var(--line);background:var(--surface);box-shadow:0 16px 40px rgba(76,65,173,.08);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.feature-card{position:relative;min-height:270px;padding:28px;border-radius:var(--lg);overflow:hidden}.feature-card:before{content:"";position:absolute;inset:0 0 auto;height:4px;background:var(--card-accent,var(--icon-violet))}.feature-card:nth-child(1){--card-accent:var(--icon-violet)}.feature-card:nth-child(2){--card-accent:var(--icon-cyan)}.feature-card:nth-child(3){--card-accent:var(--icon-green)}.feature-card:nth-child(4){--card-accent:var(--icon-magenta)}.feature-card:nth-child(5){--card-accent:var(--icon-red)}.feature-card:nth-child(6){--card-accent:var(--icon-violet)}.feature-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:15px;background:color-mix(in srgb,var(--card-accent) 14%,var(--solid));color:color-mix(in srgb,var(--card-accent) 62%,var(--text))}.feature-icon svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.8}.feature-card h3{margin:24px 0 8px;font-size:21px;letter-spacing:-.025em}.feature-card p{margin:0;color:var(--muted);font-size:15px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;overflow:hidden;border:1px solid var(--line);border-radius:var(--xl);background:var(--line)}.step{padding:36px;background:var(--solid)}.step:nth-child(1){box-shadow:inset 0 4px var(--icon-violet)}.step:nth-child(2){box-shadow:inset 0 4px var(--icon-cyan)}.step:nth-child(3){box-shadow:inset 0 4px var(--icon-green)}.step-number{color:var(--accent-strong);font-size:13px;font-weight:900;letter-spacing:.12em}.step h3{margin:12px 0 6px;font-size:23px;letter-spacing:-.03em}.step p{margin:0;color:var(--muted)}
.showcase-list{display:grid;gap:32px}.showcase{--panel-accent:var(--icon-violet);display:grid;grid-template-columns:minmax(0,.9fr) minmax(340px,1.1fr);align-items:center;gap:clamp(42px,8vw,100px);padding:clamp(28px,5vw,58px);border:1px solid var(--line);border-radius:var(--xl);background:var(--surface);box-shadow:inset 0 4px var(--panel-accent);overflow:hidden}.showcase:nth-child(1){--panel-accent:var(--icon-cyan)}.showcase:nth-child(2){--panel-accent:var(--icon-magenta)}.showcase:nth-child(3){--panel-accent:var(--icon-green)}.showcase:nth-child(even) .showcase-copy{order:2}.showcase-copy h3{margin:0;font-size:clamp(30px,4vw,44px);letter-spacing:-.045em;line-height:1.2}.showcase-copy p{margin:16px 0 0;color:var(--muted)}.showcase-label{margin:0 0 12px!important;color:color-mix(in srgb,var(--panel-accent) 62%,var(--text))!important;font-size:13px;font-weight:900;letter-spacing:.1em}.screen-stage{display:flex;justify-content:center;gap:14px;min-width:0}.screen-shot{width:min(100%,294px);padding:8px;border:1px solid var(--line);border-radius:34px;background:var(--solid);box-shadow:0 20px 50px rgba(76,65,173,.16)}.screen-shot img{border-radius:27px}.screen-shot.secondary{width:min(47%,245px);transform:translateY(28px)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.trust-card{padding:24px;border-radius:var(--md)}.trust-card strong{display:block;font-size:17px}.trust-card span{display:block;margin-top:6px;color:var(--muted);font-size:14px}
.developer{display:grid;grid-template-columns:280px 1fr;gap:clamp(42px,7vw,92px);align-items:center}.developer-mark{padding:36px;border:1px solid var(--line);border-radius:var(--xl);background:var(--surface);box-shadow:var(--shadow)}.developer-mark img{width:100%;border-radius:22%}.developer-name{margin-top:24px!important;color:var(--text)!important;font-weight:800}.text-link{color:var(--accent-strong);font-weight:800;text-underline-offset:4px}
.price-card{display:grid;grid-template-columns:1fr auto;align-items:center;gap:40px;padding:clamp(32px,5vw,58px);border-radius:var(--xl)}.price-badge{min-width:190px;padding:26px 30px;border-radius:var(--lg);background:linear-gradient(135deg,var(--icon-violet),var(--icon-magenta));color:#fff;text-align:center}.price-badge strong{display:block;font-size:38px;letter-spacing:-.05em}.price-badge span{font-size:13px;opacity:.82}
.faq-list{display:grid;gap:10px}.faq-list details{border:1px solid var(--line);border-radius:var(--md);background:var(--surface)}.faq-list summary{padding:20px 56px 20px 22px;cursor:pointer;font-weight:800;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);color:var(--accent-strong);font-size:24px}.faq-list details[open] summary:after{content:"−"}.faq-list details p{margin:0;padding:0 22px 22px;color:var(--muted)}
.final-cta{padding:clamp(48px,8vw,88px);border-radius:var(--xl);background:linear-gradient(135deg,#433bc2 0%,var(--icon-violet) 48%,var(--icon-magenta) 100%);color:#fff;text-align:center;box-shadow:0 28px 80px rgba(99,91,255,.25)}.final-cta p{margin:18px auto 28px;max-width:620px;color:rgba(255,255,255,.82)}.button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;padding:12px 22px;border-radius:999px;background:linear-gradient(135deg,var(--icon-violet),#4f46cf);color:#fff;font-weight:800;text-decoration:none}.button-light{background:#fff;color:#111719}.button-outline{border:1px solid var(--line);background:transparent;color:var(--text)}
.related-links{padding-top:0}.related-banner-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:18px}.related-banner{display:block;overflow:hidden;border:1px solid var(--line);border-radius:var(--lg);background:var(--solid);box-shadow:0 16px 40px rgba(76,65,173,.1);transition:transform .2s ease,box-shadow .2s ease}.related-banner:hover{transform:translateY(-3px);box-shadow:0 22px 52px rgba(76,65,173,.16)}.related-banner img{width:100%;height:auto}
.site-footer{padding:58px 0 42px}.footer-main{display:flex;justify-content:space-between;gap:28px;align-items:flex-start}.footer-links{display:flex;flex-wrap:wrap;gap:8px 18px}.footer-links a{color:var(--muted);font-size:14px;font-weight:700;text-decoration:none}.footer-links a:hover{color:var(--text)}.legal-copy{max-width:760px;margin:30px 0 0;color:var(--muted);font-size:11px;line-height:1.6}.copyright{margin:18px 0 0;color:var(--muted);font-size:12px}
.document-page{padding:70px 0 96px}.document-header{max-width:780px;margin-bottom:36px}.document-header h1{margin:0;font-size:clamp(38px,7vw,60px);letter-spacing:-.05em;line-height:1.15}.document-header p{color:var(--muted)}.document-card{max-width:880px;padding:clamp(24px,5vw,48px);border-radius:var(--xl)}.document-card section+section{margin-top:38px;padding-top:36px;border-top:1px solid var(--line)}.document-card h2{margin:0 0 12px;font-size:23px;letter-spacing:-.03em}.document-card h3{margin:24px 0 6px;font-size:17px}.document-card p,.document-card ul,.document-card ol{margin:0}.document-card ul,.document-card ol{padding-left:1.4em}.document-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
@media(max-width:900px){.site-nav a:not(.nav-cta){display:none}.hero-grid{grid-template-columns:1fr}.hero-copy{text-align:center}.hero-lead{margin-inline:auto}.hero-actions{justify-content:center}.hero-meta{text-align:center}.hero-visual{width:min(82vw,390px)}.feature-grid{grid-template-columns:repeat(2,1fr)}.showcase{grid-template-columns:1fr}.showcase:nth-child(even) .showcase-copy{order:initial}.showcase-copy{text-align:center}.trust-grid{grid-template-columns:repeat(2,1fr)}.developer{grid-template-columns:220px 1fr}}
@media(max-width:640px){.container{width:min(100% - 28px,1120px)}.header-inner{min-height:64px}.brand img{width:36px;height:36px}.brand small{display:none}.site-nav .nav-cta{padding-inline:14px;font-size:13px}.hero{padding:64px 0 82px}.hero h1{font-size:clamp(40px,12vw,58px)}.section{padding:76px 0}.section-compact{padding:56px 0}.feature-grid,.steps,.trust-grid,.related-banner-grid{grid-template-columns:1fr}.feature-card{min-height:auto}.screen-stage{align-items:flex-start}.screen-shot.secondary{transform:translateY(18px)}.developer{grid-template-columns:1fr}.developer-mark{width:min(230px,70vw);margin-inline:auto}.developer-copy{text-align:center}.price-card{grid-template-columns:1fr;text-align:center}.price-badge{min-width:0}.footer-main{flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}