:root{color-scheme:light dark;--bg:#f5f9fa;--surface:#fff;--ink:#162f3d;--muted:#516773;--accent:#087f8b;--wash:#e3f3f4;--line:#d4e3e7;--button:#086c77;--on-button:#fff;--shadow:rgba(25,75,87,.16)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang TC","Noto Sans TC",sans-serif;font-size:16px;line-height:1.7}a{color:var(--accent);text-underline-offset:5px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:6px}img{max-width:100%;height:auto;display:block}svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}p{margin:0 0 1.2em}h1,h2,h3{line-height:1.25;letter-spacing:-.035em;margin:0 0 .65em}h1{font-size:clamp(38px,5vw,68px);font-weight:750}h2{font-size:clamp(28px,3.3vw,42px)}h3{font-size:21px}span.accent{color:var(--accent)}.wrap{width:min(1160px,calc(100% - 64px));margin-inline:auto}.skip{position:absolute;left:20px;top:-90px;background:var(--surface);padding:12px;z-index:5}.skip:focus{top:8px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:88px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-size:22px;font-weight:750;letter-spacing:-.04em}.brand img{border-radius:11px}nav{display:flex;align-items:center;gap:26px}nav a{text-decoration:none;font-size:15px;color:var(--muted);font-weight:550}nav a:hover{color:var(--accent)}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center;padding:64px 0 80px}.eyebrow{font-size:14px;font-weight:650;color:var(--accent);letter-spacing:.06em;margin-bottom:22px}.lead{font-size:20px;color:var(--muted);max-width:480px;line-height:1.7;margin-bottom:30px}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;padding:13px 22px;border-radius:14px;background:var(--button);color:var(--on-button);text-decoration:none;font-size:16px;font-weight:650;transition:transform .15s,background .15s}.button:hover{transform:translateY(-2px)}.button:active{transform:translateY(0)}.hero-art{position:relative;display:grid;place-items:center;padding:28px;background:var(--wash);border-radius:36px;min-height:560px}.phone{width:244px;border:7px solid #243b45;border-radius:37px;background:#f1f1f6;box-shadow:0 24px 55px var(--shadow)}.hero-art .phone{width:242px;transform:rotate(4deg)}section{padding:76px 0;border-top:1px solid var(--line)}.section-intro{max-width:650px;color:var(--muted);font-size:18px;margin-bottom:34px}.screenshot-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.screenshot-strip figure{margin:0}.screenshot-strip img{border:5px solid #243b45;border-radius:27px;width:100%;box-shadow:0 12px 25px var(--shadow)}figcaption{margin-top:18px;font-size:16px;font-weight:650}figcaption span{display:block;font-weight:400;font-size:14px;color:var(--muted);margin-top:4px}.features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 64px;margin-top:38px}.features article{display:grid;grid-template-columns:36px 1fr;gap:18px}.features svg{color:var(--accent);margin-top:3px}.features p{color:var(--muted);margin:0;max-width:42ch}.privacy-panel{background:var(--wash);padding:48px;border-radius:28px;display:grid;grid-template-columns:1fr 1.1fr;gap:60px}.privacy-panel p{color:var(--muted)}.privacy-panel h2{max-width:10em}.privacy-panel a{font-weight:600}.privacy-points{margin:0;padding:0;list-style:none}.privacy-points li+li{margin-top:24px}.privacy-points strong{display:block;font-size:18px}.privacy-points p{margin:5px 0 0}.pro-panel{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:start}.pro-panel p{color:var(--muted);max-width:48ch}.pro-list{padding:0;margin:0;list-style:none}.pro-list li{padding:16px 0;border-bottom:1px solid var(--line);font-size:18px}.pro-list li:first-child{padding-top:0}.pro-list span{color:var(--accent);margin-right:14px;font-weight:700}details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-size:18px;font-weight:600;padding-right:12px}details p{margin:18px 0 0;color:var(--muted);max-width:80ch}.warning{padding:24px 28px;background:var(--wash);border-left:3px solid var(--accent);border-radius:0 16px 16px 0;margin:28px 0}.warning p{margin:10px 0 0;color:var(--muted)}.download{text-align:center;padding:64px 28px;background:var(--wash);border-radius:28px;margin:0 0 76px;border:0}.download img{margin:0 auto 24px;border-radius:20px}.download p{color:var(--muted);margin-bottom:0}.download h2{margin-bottom:16px}.document{max-width:800px;padding-top:64px;padding-bottom:88px;min-height:65vh;overflow-wrap:anywhere}.document h1{font-size:clamp(34px,4.5vw,54px)}.document h2{font-size:26px;margin-top:42px}.document p,.document li{color:var(--muted)}.document .date{font-size:14px;margin:0 0 36px}.document li{padding-left:5px;margin-bottom:10px}footer{border-top:1px solid var(--line)}.footer-inner{padding:32px 0;display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-inner span{font-size:14px;color:var(--muted)}.footer-inner nav{flex-wrap:wrap;gap:22px}.note{font-size:14px;color:var(--muted)}
@media(prefers-color-scheme:dark){:root{--bg:#101c23;--surface:#192a33;--ink:#e8f2f5;--muted:#adbec7;--accent:#67d6df;--wash:#192f38;--line:#30454f;--button:#81dbe1;--on-button:#102b33;--shadow:rgba(0,0,0,.3)}}
@media(max-width:1023px){.hero{gap:32px}.hero-art{min-height:510px;padding:24px}.hero-art .phone{width:212px}.hero h1{font-size:46px}.screenshot-strip{gap:18px}.privacy-panel{gap:32px;padding:36px}.features{gap:30px}.footer-inner{align-items:flex-start;flex-direction:column}}
@media(max-width:767px){.wrap{width:calc(100% - 40px)}header{min-height:76px;gap:12px}.brand{font-size:21px}.brand img{width:36px;height:36px}nav{gap:18px}nav a{font-size:14px}.desktop{display:none}.hero{grid-template-columns:1fr;padding:42px 0 48px;gap:36px}.hero h1{font-size:clamp(36px,7.5vw,52px)}.eyebrow{margin-bottom:16px}.lead{font-size:18px;max-width:38ch;margin-bottom:24px}.hero-art{min-height:0;padding:30px 24px}.hero-art .phone{width:214px;transform:rotate(3deg)}section{padding:48px 0}.section-intro{font-size:16px}.screenshot-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 18px}.screenshot-strip img{border-width:4px;border-radius:20px}figcaption{font-size:15px;margin-top:12px}figcaption span{font-size:13px}.features{grid-template-columns:1fr;gap:30px}.features h3{font-size:20px}.privacy-panel,.pro-panel{grid-template-columns:1fr;gap:24px}.privacy-panel{padding:28px 24px}.privacy-panel h2{max-width:none}.download{padding:40px 20px;margin-bottom:48px}.download h2{font-size:27px}.document{padding-top:42px;padding-bottom:56px}.document h2{font-size:23px}.warning{padding:22px}.footer-inner nav{gap:18px}.footer-inner nav a{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.button:hover{transform:none}}