/* PaperIn: blue accent, paper surfaces, real app screenshots. */
:root{color-scheme:light dark;--bg:#fafbfe;--surface:#fff;--soft:#edf2ff;--ink:#152139;--muted:#566277;--accent:#2766f6;--line:#dce3ef;--shadow:0 28px 70px #18356415;--radius:24px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--ink);line-height:1.7}a{color:inherit;text-underline-offset:4px}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.wrap{width:min(1120px,calc(100% - 64px));margin:auto}.skip{position:absolute;top:-100px;left:20px;z-index:10;background:var(--surface);padding:10px}.skip:focus{top:10px}.site-header{height:80px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:700;font-size:21px;white-space:nowrap}.brand img{width:40px;height:40px;border-radius:10px}.brand small{font-size:13px;font-weight:500;color:var(--muted);margin-left:4px}.nav{display:flex;align-items:center;gap:26px;font-size:14px}.nav>a{text-decoration:none}.lang{border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);padding:8px 10px;max-width:130px}.hero{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;gap:70px;padding:52px 0 70px;min-height:690px}.hero-copy{max-width:570px}.hero h1{font-size:clamp(40px,4.4vw,62px);letter-spacing:-.045em;line-height:1.16;margin:0 0 26px;font-weight:720;text-wrap:balance}.hero h1 span{color:var(--accent)}.hero .intro{font-size:19px;line-height:1.8;max-width:440px;color:var(--muted);margin:0 0 34px}.download{display:inline-flex;align-items:center;gap:13px;padding:13px 25px;border-radius:15px;color:#fff;background:#152139;text-decoration:none;line-height:1.2;transition:transform .2s,background .2s;white-space:nowrap}.download:hover{transform:translateY(-2px);background:#243b62}.download .apple{font-family:-apple-system,BlinkMacSystemFont,sans-serif;font-size:35px;line-height:1}.download span:last-child{display:flex;flex-direction:column;gap:4px}.download small{font-size:11px;letter-spacing:.02em}.download strong{font-size:22px;font-weight:550}.hero-visual{position:relative;background:var(--soft);border-radius:40px;padding:36px 26px;display:flex;align-items:center;justify-content:center;min-height:560px}.phone{width:228px;max-width:100%;background:#e6e9f0;border:6px solid #202636;border-radius:38px;overflow:hidden;box-shadow:var(--shadow);line-height:0}.phone img{display:block;width:100%;height:auto}.hero-visual .phone{transform:rotate(3deg)}.essentials{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;padding:28px 0 54px;border-bottom:1px solid var(--line)}.essential strong{display:block;font-size:21px;margin-bottom:8px}.essential p{margin:0;color:var(--muted);font-size:15px}.section{padding:84px 0}.section h2{font-size:clamp(28px,3vw,39px);letter-spacing:-.035em;line-height:1.3;margin:0 0 18px}.section-lead{color:var(--muted);max-width:580px;margin:0 0 34px}.showcase{display:grid;grid-template-columns:.85fr 1.15fr;gap:76px;align-items:center}.preview-stage{border-radius:32px;background:var(--soft);min-height:570px;padding:36px;display:flex;justify-content:center;align-items:center}.preview-stage .phone{width:226px}.preview-link{display:block;cursor:zoom-in}.preview-caption{font-size:13px;color:var(--muted);margin:12px 0 0;text-align:center}.tabs{display:grid;gap:6px}.tab{text-align:left;border:0;background:transparent;color:var(--ink);padding:16px 18px;border-radius:16px;cursor:pointer}.tab strong{display:block;font-size:18px;line-height:1.4;margin-bottom:5px}.tab span{display:block;color:var(--muted);font-size:14px}.tab[aria-pressed=true]{background:var(--surface);box-shadow:0 5px 24px #1633670b}.tab[aria-pressed=true] strong{color:var(--accent)}.formats{display:flex;flex-wrap:wrap;gap:12px;padding:25px 0 0}.formats span{font-size:12px;letter-spacing:.06em;font-weight:650;color:var(--muted)}.privacy-section{background:var(--soft);border-radius:32px;padding:52px;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}.privacy-section p{color:var(--muted);margin:0 0 20px}.privacy-section h2{max-width:350px}.text-link{font-size:15px;font-weight:600;color:var(--accent)}.faq{max-width:800px;margin:auto}.faq details{padding:23px 0;border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-size:18px;font-weight:600}.faq details p{color:var(--muted);font-size:15px;margin:14px 0 0}.site-footer{padding:32px 0 40px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.footer-top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:16px}.footer-links{display:flex;gap:22px;flex-wrap:wrap}.footer-links a{text-decoration:none}.site-footer p{margin:0}.legal{max-width:820px;margin:auto;padding:60px 0 90px}.legal h1{font-size:clamp(32px,4vw,46px);letter-spacing:-.035em;line-height:1.2;margin:0 0 18px}.legal .meta{font-size:14px;color:var(--muted);margin-bottom:34px}.legal .summary{background:var(--soft);padding:24px 28px;border-radius:18px;margin:28px 0 38px}.legal .summary p{margin:0}.legal h2{font-size:23px;letter-spacing:-.02em;line-height:1.4;margin:36px 0 12px}.legal h3{font-size:18px;margin:22px 0 10px}.legal p,.legal li{font-size:16px;line-height:1.95}.legal li{margin-bottom:9px}.legal a{color:var(--accent);overflow-wrap:anywhere}.legal ul{padding-left:22px}.embed .site-header,.embed .site-footer{display:none}.embed .legal{padding-top:24px}
@media(prefers-color-scheme:dark){:root{--bg:#101622;--surface:#192131;--soft:#18243c;--ink:#edf2fb;--muted:#adb9ce;--line:#2b374a;--accent:#80a8ff;--shadow:0 28px 70px #0005}.download{background:#edf2fb;color:#14213a}.download:hover{background:#d7e5ff}.tab[aria-pressed=true]{box-shadow:none}.phone{border-color:#34415b}}
html[data-theme=light]{color-scheme:light;--bg:#fafbfe;--surface:#fff;--soft:#edf2ff;--ink:#152139;--muted:#566277;--accent:#2766f6;--line:#dce3ef}html[data-theme=dark]{color-scheme:dark;--bg:#101622;--surface:#192131;--soft:#18243c;--ink:#edf2fb;--muted:#adb9ce;--accent:#80a8ff;--line:#2b374a}
@media(max-width:800px){.wrap{width:calc(100% - 40px)}.nav{gap:15px}.nav .desktop-link{display:none}.hero{grid-template-columns:1fr;gap:38px;padding:34px 0 46px;min-height:0}.hero-copy{max-width:560px}.hero h1{font-size:44px;max-width:480px}.hero .intro{font-size:17px}.hero-visual{min-height:0;padding:30px;border-radius:28px}.hero-visual .phone{width:200px;transform:none}.essentials{gap:22px;padding-bottom:38px}.essential strong{font-size:17px}.essential p{font-size:14px}.section{padding:56px 0}.showcase{grid-template-columns:1fr;gap:30px}.showcase-copy{order:-1}.preview-stage{min-height:0;padding:30px}.privacy-section{grid-template-columns:1fr;gap:12px;padding:28px}.legal{padding-top:32px}.site-header{height:72px}.brand small{display:none}}
@media(max-width:420px){.hero h1{font-size:38px}.essentials{grid-template-columns:1fr;gap:22px}.essential strong{margin-bottom:3px}.hero-visual .phone{width:182px}.brand{font-size:19px}.brand img{width:34px;height:34px}.nav{gap:10px}.lang{font-size:12px;padding:7px}.download{padding:12px 22px}.footer-links{gap:16px}.legal .summary{padding:20px}.phone{border-width:5px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

html[data-theme=dark] .download{background:#edf2fb;color:#14213a}html[data-theme=dark] .download:hover{background:#d7e5ff}html[data-theme=light] .download{background:#152139;color:#fff}html[data-theme=light] .download:hover{background:#243b62}