:root{--accent:#245ce2;--accent-dark:#194ac0;--ink:#172a45;--muted:#52647c;--line:#e0e7f0;--paper:#f5f8fc;--soft:#eaf0fc;--radius:20px;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}button{cursor:pointer}img{max-width:100%;display:block}h1,h2,h3,p{margin-top:0}h1,h2{letter-spacing:-.05em}h1{font-size:clamp(46px,5.4vw,78px);line-height:1.15;margin-bottom:24px}h2{font-size:clamp(32px,3.6vw,50px);line-height:1.25;margin-bottom:22px}h3{font-size:20px;letter-spacing:-.02em;margin-bottom:10px}p{color:var(--muted)}.shell{width:min(1240px,calc(100% - 80px));margin:auto}.skip{position:absolute;top:-80px;left:20px;padding:10px;background:#fff;z-index:99}.skip:focus{top:10px}.nav{height:86px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#ffffffed;position:sticky;top:0;z-index:30}.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;gap:11px;align-items:center;font-weight:750;font-size:20px;letter-spacing:-.025em}.brand img{width:37px;height:37px;border-radius:11px}.brand small{font-weight:500;font-size:11px;letter-spacing:.17em;color:var(--muted);display:block}.navlinks{display:flex;align-items:center;gap:31px;font-size:14px}.navlinks a{padding:8px 0;color:var(--muted)}.navlinks a:hover,.navlinks a[aria-current=page]{color:var(--accent)}.navlinks .nav-action{padding:10px 17px;border:1px solid var(--line);border-radius:9px;color:var(--ink);font-weight:600}.menu{display:none;border:1px solid var(--line);background:white;border-radius:8px;padding:8px 12px}.eyebrow{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.12em;margin-bottom:24px}.hero{display:grid;grid-template-columns:.85fr 1.35fr;align-items:center;gap:50px;min-height:640px;padding:75px 0 80px}.hero h1 span{color:var(--accent)}.hero p{font-size:17px;line-height:1.9;max-width:380px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:9px;font-size:14px;font-weight:650;border:1px solid var(--line);background:white;white-space:nowrap;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.primary{background:var(--accent);color:white;border-color:var(--accent)}.primary:hover{background:var(--accent-dark)}.button:disabled{background:#f0f3f8;color:#667890;cursor:default;transform:none}.hero-note{font-size:12px!important;margin-top:21px}.product-scene{position:relative;padding:60px 75px 100px 0;min-width:0}.product-scene:before{content:"";position:absolute;inset:5% -8% 0 4%;border-radius:45% 45% 20px 20px;background:var(--paper);z-index:-1}.desktop-frame{background:#fff;border:6px solid #fff;outline:1px solid #dae2ec;border-radius:13px;overflow:hidden;box-shadow:0 24px 60px #243b6020;transform:rotate(-3deg)}.desktop-frame img{width:100%;height:auto}.phone-frame{width:165px;background:#fff;border:6px solid white;border-radius:25px;overflow:hidden;outline:1px solid #d7dfe8;box-shadow:0 18px 50px #243b6020}.phone-frame img{width:100%;height:auto}.hero-phone{position:absolute;right:0;top:100px;transform:rotate(5deg)}.device-caption{position:absolute;left:25px;bottom:25px;color:var(--muted);font-size:12px}.platform-strip{display:grid;grid-template-columns:1fr 3fr;align-items:center;gap:30px;padding:25px 0 30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px}.platform-strip strong{font-weight:600}.platform-names{display:flex;justify-content:space-between;gap:15px;color:var(--muted)}.section{padding:106px 0}.section.soft{background:var(--paper)}.section-head{max-width:660px;margin-bottom:44px}.section-head p{max-width:580px;font-size:16px;line-height:1.9}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:94px;align-items:center}.shot-wrap{background:#eaf0fc;border-radius:var(--radius);padding:38px;min-width:0}.shot-wrap img{border-radius:12px;border:1px solid #d9e0eb;width:100%;height:auto}.shot-wrap figure{margin:0}.shot-wrap figcaption{margin-top:15px;font-size:12px;color:var(--muted)}.feature-lines{display:grid;gap:22px;margin-top:28px}.feature-line{display:grid;grid-template-columns:30px 1fr;gap:12px}.feature-line .n{color:var(--accent);font-size:12px;padding-top:4px;font-weight:700}.feature-line h3{font-size:17px}.feature-line p{font-size:14px;margin:0}.voice-visual{display:flex;align-items:center;justify-content:center;gap:30px;padding:40px;background:var(--soft);border-radius:var(--radius)}.voice-visual .phone-frame{width:190px;transform:rotate(-5deg)}.voice-visual .phone-frame:nth-child(2){width:164px;transform:rotate(6deg);margin-top:72px}.voice-visual .phone-frame img{width:100%;height:auto}.inline-link{display:inline-flex;align-items:center;gap:12px;color:var(--accent);font-weight:650;font-size:14px;margin-top:24px}.inline-link:hover{text-decoration:underline}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 64px}.feature-cell{padding:30px 0;border-bottom:1px solid var(--line)}.feature-cell span{color:var(--accent);font-size:12px;font-weight:700;display:block;margin-bottom:15px}.feature-cell p{font-size:14px;max-width:470px;margin-bottom:0}.banner{padding:50px 56px;background:var(--soft);border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:35px}.banner h2{font-size:36px;margin-bottom:14px}.banner p{margin-bottom:0}.footer{padding:45px 0 25px;border-top:1px solid var(--line)}.footer-top{display:flex;justify-content:space-between;gap:35px;align-items:center}.footer-links{display:flex;gap:24px;font-size:13px;color:var(--muted)}.footer-bottom{display:flex;justify-content:space-between;gap:24px;margin-top:34px;color:#66758a;font-size:11px}.page-heading{padding:76px 0 50px;max-width:830px}.page-heading h1{font-size:56px}.page-heading p{font-size:17px;max-width:640px}.filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:35px}.filter button{border:1px solid var(--line);border-radius:8px;background:white;padding:9px 20px;color:var(--muted)}.filter button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:white}.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:35px}.gallery figure{margin:0;min-width:0}.gallery button{display:flex;justify-content:center;align-items:center;width:100%;height:340px;padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.gallery img{max-height:100%;max-width:100%;width:auto;height:auto;border-radius:7px;transition:transform .25s}.gallery button:hover img{transform:scale(1.025)}.gallery figcaption{padding:15px 0}.gallery figcaption strong{font-size:15px}.gallery figcaption p{font-size:12px;margin:5px 0}.gallery [hidden]{display:none}.lightbox{padding:20px;border:1px solid var(--line);border-radius:14px;max-width:min(94vw,1400px);background:white}.lightbox::backdrop{background:#112038b3}.lightbox img{max-height:78vh;width:auto;max-width:88vw;object-fit:contain;margin:auto}.lightbox-top{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:15px}.lightbox-top button{border:1px solid var(--line);border-radius:8px;background:white;padding:8px 16px}.lightbox p{font-size:12px;margin:14px 0 0}.platform-table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}.platform-table th{font-size:12px;color:var(--muted);font-weight:500;background:var(--paper)}.platform-table th,.platform-table td{padding:22px;border-bottom:1px solid var(--line)}.platform-table td:first-child{font-size:19px;font-weight:650}.table-scroll{overflow:auto}.availability{background:var(--soft);color:var(--accent);font-size:11px;padding:5px 9px;border-radius:6px;white-space:nowrap}.faq{max-width:850px}.faq details{border-bottom:1px solid var(--line);padding:23px 0}.faq summary{font-weight:600;cursor:pointer}.faq details p{margin:15px 0 0;font-size:14px;line-height:1.9}.capability-columns{display:grid;grid-template-columns:repeat(2,1fr);gap:36px 80px}.capability-columns section{padding:0 0 24px;border-bottom:1px solid var(--line)}.capability-columns p{font-size:14px;margin:0}.capability-columns ul{padding-left:19px;color:var(--muted);font-size:14px;line-height:2}.smallprint{font-size:12px;line-height:1.8;margin-top:22px}.revealed{animation:appear .6s ease both}@keyframes appear{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:none}}@media(min-width:1450px){.hero{min-height:690px}}@media(max-width:1024px){.shell{width:calc(100% - 48px)}.hero{gap:30px;grid-template-columns:.8fr 1.2fr;min-height:580px}.hero h1{font-size:58px}.product-scene{padding-right:55px}.hero-phone{width:135px;top:85px}.split{gap:45px}.voice-visual{gap:16px;padding:30px 20px}.voice-visual .phone-frame{width:155px}.voice-visual .phone-frame:nth-child(2){width:135px}.navlinks{gap:20px}.banner{padding:35px}.platform-strip{grid-template-columns:1fr}.platform-names{justify-content:flex-start;flex-wrap:wrap;gap:15px 30px}}@media(max-width:767px){.shell{width:calc(100% - 40px)}.nav{height:72px}.brand{font-size:18px}.brand img{width:33px;height:33px}.menu{display:block}.navlinks{display:none;position:absolute;top:72px;left:0;right:0;background:white;border-bottom:1px solid var(--line);padding:25px;gap:12px;flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{padding:12px}.hero{display:flex;flex-direction:column;align-items:stretch;gap:16px;padding:52px 0 28px;min-height:0}.hero h1{font-size:57px;line-height:1.14}.hero p{font-size:15px;max-width:340px}.hero .eyebrow{margin-bottom:18px}.hero .actions{margin-top:23px}.hero-note{margin-top:15px}.product-scene{padding:30px 65px 65px 0;margin-top:14px}.hero-phone{width:115px;top:43px}.device-caption{font-size:10px;left:0;bottom:10px}.platform-strip{padding:24px 0;font-size:12px}.platform-names{gap:10px 22px}.section{padding:64px 0}.section-head{margin-bottom:28px}.split{display:flex;flex-direction:column;gap:35px;align-items:stretch}.split.reverse .section-copy{order:0}.split.reverse .voice-visual{order:1}.section-head p{font-size:15px}.shot-wrap{padding:20px}.voice-visual{padding:30px;gap:20px}.voice-visual .phone-frame{width:145px}.voice-visual .phone-frame:nth-child(2){width:125px;margin-top:45px}.feature-grid,.capability-columns{grid-template-columns:1fr;gap:0}.feature-cell{padding:25px 0}.banner{display:block;padding:28px}.banner h2{font-size:30px}.banner .button{margin-top:25px}.footer-top,.footer-bottom{display:block}.footer-links{margin-top:25px;flex-wrap:wrap;gap:18px}.footer-bottom>span{display:block;margin-top:9px}.page-heading{padding:48px 0 30px}.page-heading h1{font-size:42px}.page-heading p{font-size:15px}.gallery{grid-template-columns:1fr;gap:20px}.gallery button{height:350px}.platform-table{min-width:670px}.lightbox{padding:12px}.capability-columns section{margin-bottom:22px}.button{padding:11px 18px;font-size:13px}.faq details{padding:21px 0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.demo-card{padding:35px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);min-width:0}.demo-card .eyebrow{display:block;margin-bottom:18px}.demo-url{display:block;overflow-wrap:anywhere;color:var(--accent);font-size:14px;margin-top:20px}.demo-url:hover{text-decoration:underline}#demo,#experience,#faq,#messages{scroll-margin-top:110px}@media(max-width:767px){.demo-grid{grid-template-columns:1fr;gap:18px}.demo-card{padding:25px}}

#company{scroll-margin-top:110px}.company-info{max-width:850px}.company-info h2{font-size:clamp(28px,3.6vw,46px);overflow-wrap:anywhere}.company-details{display:grid;grid-template-columns:1fr 1.5fr 1fr;gap:28px;margin:0;padding-top:28px;border-top:1px solid var(--line)}.company-details dt{font-size:12px;color:var(--muted);margin-bottom:10px}.company-details dd{margin:0;font-size:16px;overflow-wrap:anywhere}.company-details .inline-link{margin:0}.footer-links{flex-wrap:wrap}@media(max-width:767px){.company-details{grid-template-columns:1fr;gap:22px}}

/* 官网细节层：保留实际界面，让文字、阅读路线和交互保持一致。 */
:root{--ink:#182b46;--muted:#5b6a80;--line:#e2e8f1;--paper:#f6f8fc;--soft:#edf2fd;--radius:16px}
body{overflow-wrap:break-word}
[hidden]{display:none!important}
button{touch-action:manipulation}
.nav{height:80px;background:#fff;box-shadow:0 4px 18px #15274404}
.brand{flex-shrink:0;letter-spacing:0}
.brand small{letter-spacing:.08em}
.navlinks a[aria-current=page]{font-weight:650;position:relative}
.navlinks a[aria-current=page]:after{content:"";position:absolute;bottom:-17px;left:0;right:0;height:3px;background:var(--accent);border-radius:3px}
.navlinks .nav-action{background:var(--accent);border-color:var(--accent);color:#fff}
.navlinks .nav-action:hover{background:var(--accent-dark);color:#fff}
h1,h2{letter-spacing:-.035em;text-wrap:balance}p{text-wrap:pretty}
.hero{min-height:670px;grid-template-columns:.84fr 1.26fr;gap:45px;padding:70px 0 64px}
.hero h1{font-size:clamp(48px,5.3vw,72px)}
.hero-traits{display:flex;flex-wrap:wrap;gap:10px 20px;color:var(--muted)}
.hero-traits span{display:inline-flex;align-items:center;gap:7px}
.hero-traits span:before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent)}
.product-scene{padding:40px 58px 70px 0}
.product-scene:before{inset:2% -3% 3% 8%;border-radius:24px}
.desktop-frame{transform:rotate(-2deg);border:5px solid white;border-radius:13px;box-shadow:0 22px 52px #142d5220}
.window-bar{display:flex;justify-content:space-between;gap:15px;align-items:center;height:27px;padding:0 12px;background:#fff;color:#6b7a91;font-size:9px}
.window-dots{font-size:8px;letter-spacing:3px;color:#ccd5e2}
.hero-phone{width:160px;top:90px;transform:rotate(3deg)}
.phone-frame{border-width:5px;border-radius:22px}
.device-caption{bottom:10px;left:5px;font-size:11px}
.platform-strip{padding:24px 0;color:var(--muted)}
.platform-names{font-weight:600;letter-spacing:.015em}
.overview{padding:72px 0;border-bottom:1px solid var(--line)}
.overview-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:90px;align-items:center}
.overview h2{font-size:32px;margin:0}
.overview .eyebrow{margin-bottom:18px}
.overview-links>a{display:grid;grid-template-columns:1fr 26px;gap:8px 15px;padding:20px 0;border-bottom:1px solid var(--line)}
.overview-links>a:first-child{padding-top:0}
.overview-links>a:last-child{border:0;padding-bottom:0}
.overview-links>a>span:first-child{grid-column:1/-1;color:var(--muted);font-size:11px;letter-spacing:.05em}
.overview-links strong{font-size:16px;font-weight:600;transition:color .2s}
.overview-links>a>span:last-child{color:var(--accent);align-self:center}
.overview-links a:hover strong{color:var(--accent)}
.section{padding:92px 0}
.section-head .eyebrow,.section-copy .eyebrow{font-size:11px;letter-spacing:.13em}
.shot-wrap{padding:26px;background:#eef2f8}
.shot-wrap figcaption{font-size:11px}
.feature-cell h3{font-size:20px}
.banner{background:var(--ink);color:white;position:relative;padding:48px 52px;border-radius:16px}
.banner h2{color:#fff;font-size:34px}
.banner p{color:#c7d2e1;font-size:14px}
.banner .primary{background:#fff;border-color:#fff;color:var(--ink)}
.banner .primary:hover{background:#edf2fd}
.company-info h2{font-size:clamp(29px,3.3vw,43px);line-height:1.4}
.company-details{gap:35px}
.company-note{font-size:11px;color:var(--muted);margin:32px 0 0}
.breadcrumb{display:flex;align-items:center;gap:12px;font-size:11px;color:#77859a;margin-bottom:32px}
.breadcrumb a:hover{color:var(--accent)}
.page-heading{padding:48px 0 55px}
.page-heading .eyebrow{margin-bottom:18px}
.page-heading h1{font-size:clamp(42px,4.6vw,58px)}
.page-heading p{font-size:16px;line-height:1.9}
.feature-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:70px;align-items:start}
.feature-directory{position:sticky;top:110px;border-top:2px solid var(--ink);padding-top:20px}
.feature-directory>p{font-size:11px;font-weight:650;color:var(--ink);letter-spacing:.1em;margin-bottom:18px}
.feature-directory nav{display:flex;flex-direction:column;gap:3px}
.feature-directory nav a{display:flex;gap:14px;padding:10px 12px;color:var(--muted);font-size:13px;border-radius:6px;border-left:2px solid transparent}
.feature-directory nav a span{font-size:10px;color:#8995a7;min-width:16px;align-self:center}
.feature-directory nav a:hover,.feature-directory nav a[aria-current=true]{color:var(--accent);background:var(--soft);border-left-color:var(--accent)}
.directory-demo{display:block;margin:24px 12px 0;font-size:12px;color:var(--accent);font-weight:600}
.capability-columns{grid-template-columns:1fr 1fr;gap:28px 42px}
.capability-columns section{padding:0 0 30px;scroll-margin-top:110px;min-width:0}
.feature-number{display:block;color:#91a3bd;letter-spacing:.1em;font-size:11px;margin-bottom:14px}
.capability-columns h2{font-size:24px;letter-spacing:-.02em;margin-bottom:13px;line-height:1.4}
.capability-columns p{font-size:13px;line-height:1.9}
.capability-columns ul{margin:20px 0 0;font-size:13px;line-height:2.05;padding-left:17px}
.capability-columns li{padding-left:3px;margin:4px 0}
.capability-columns li::marker{color:#a7b8d0;font-size:.75em}
.capability-columns .smallprint{margin-top:18px;font-size:11px}
.capability-columns #management{grid-column:1/-1}
#management ul{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.feature-note{margin:45px 0 0 290px;background:var(--paper);border-left:3px solid #c1d0ec;padding:22px 26px}
.feature-note strong{font-size:13px}
.feature-note p{font-size:12px;line-height:1.9;margin:8px 0 0}
.gallery-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.filter{margin:0;gap:8px}
.filter button{font-size:12px;padding:10px 18px;border-radius:7px}
.gallery-count{font-size:11px;white-space:nowrap;margin:0;color:#7e8da3}
.gallery{grid-template-columns:repeat(12,minmax(0,1fr));gap:35px 24px}
.gallery figure[data-kind^=pc]{grid-column:span 6}
.gallery figure[data-kind^=app]{grid-column:span 3}
.gallery button{height:450px;padding:22px;background:#f3f6fb;border:1px solid #e6ebf3;border-radius:12px;position:relative}
.gallery figure[data-kind^=pc] button{height:320px;padding:20px}
.gallery img{border:1px solid #dce4ef;box-shadow:0 10px 24px #1e385312;max-height:100%;max-width:100%;object-fit:contain}
.gallery figure[data-kind^=app] img{border-radius:15px}
.zoom-hint{position:absolute;right:12px;top:12px;font-size:10px;padding:5px 9px;background:#ffffffef;border-radius:5px;color:var(--accent);z-index:1;opacity:0;transition:opacity .2s}
.shot-button:hover .zoom-hint,.shot-button:focus-visible .zoom-hint{opacity:1}
.gallery figcaption{padding:17px 2px}
.gallery figcaption strong{font-size:14px;font-weight:650}
.gallery figcaption p{font-size:10px;margin-top:7px;line-height:1.8}
.gallery[data-filter=app] figure,.gallery[data-filter=voice] figure[data-kind^=app]{grid-column:span 6}
.gallery[data-filter=voice] figure[data-kind^=pc]{grid-column:1/-1}
.gallery[data-filter=voice] figure[data-kind^=pc] button{height:500px}
.lightbox{padding:18px 22px;box-shadow:0 24px 100px #0003;max-height:94dvh;overflow:auto}
.lightbox img{max-height:67dvh;max-width:85vw;min-height:0}
.lightbox-top strong{font-size:14px}
.lightbox-top button{font-size:12px;min-height:36px}
.lightbox-controls{display:flex;align-items:center;justify-content:center;gap:24px;padding-top:17px}
.lightbox-controls button{padding:8px 14px;border:1px solid var(--line);background:#fff;border-radius:6px;font-size:12px}
.lightbox-controls button:hover{color:var(--accent);border-color:#adc2ed}
.lightbox-controls span{font-size:11px;color:var(--muted);min-width:40px;text-align:center}
.lightbox>p{max-width:720px;font-size:11px;text-align:center;margin:14px auto 0}
.table-hint{font-size:12px;font-weight:650;margin:0 0 18px;color:var(--ink)}
.table-scroll{border:1px solid var(--line);border-radius:12px}
.table-scroll:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.platform-table tr:last-child td{border-bottom:0}
.platform-table th,.platform-table td{padding:23px 24px}
.platform-table td:first-child{font-size:16px}
.platform-table td:last-child{color:var(--muted);font-size:12px}
.platform-table .availability{display:inline-block;margin:0 9px 0 0;font-weight:550}
.demo-grid{gap:24px}
.demo-card{padding:32px;border-radius:12px;background:white;box-shadow:0 8px 24px #1d385507}
.demo-card-top{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:24px}
.demo-card-top .eyebrow{margin:0;font-size:11px}
.demo-badge{font-size:10px;background:var(--paper);padding:5px 9px;border-radius:4px;color:var(--muted);white-space:nowrap}
.demo-card h3{font-size:23px}
.demo-card>p{font-size:13px;line-height:1.9}
.demo-url{background:var(--paper);border:1px solid var(--line);padding:12px 14px;border-radius:6px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}
.demo-card .actions{margin-top:22px}
[data-copy-status]{min-height:22px}
.experience-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;padding:0;margin:0;list-style:none;counter-reset:steps}
.experience-steps li{padding-top:24px;border-top:1px solid #cbd7eb}
.experience-steps li>span{font-size:12px;font-weight:600;color:var(--accent);display:block;margin-bottom:20px}
.experience-steps h3{font-size:18px}
.experience-steps p{font-size:13px;line-height:1.9;margin:0}
#guide{scroll-margin-top:110px}
.faq{max-width:900px}
.faq details{padding:0;border-bottom:1px solid var(--line)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:20px;list-style:none;padding:24px 0;font-size:15px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"＋";font-size:19px;color:#8a9ab1;font-weight:400;flex-shrink:0}
.faq details[open] summary:after{content:"−";color:var(--accent)}
.faq details[open] summary{color:var(--accent);padding-bottom:14px}
.faq details p{font-size:13px;margin:0;padding-bottom:24px;max-width:780px}
.footer{background:#f8fafd;padding:52px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:50px}
.footer-brand>p{font-size:12px;margin:20px 0 0}
.footer-brand .footer-company{margin-top:9px;font-size:11px;color:#718098}
.footer-grid nav h3{font-size:12px;letter-spacing:0;font-weight:650;margin:4px 0 18px}
.footer-grid nav a{display:block;color:var(--muted);font-size:12px;line-height:1.7;margin:11px 0}
.footer-grid nav a:hover{color:var(--accent)}
.footer-bottom{padding-top:24px;border-top:1px solid var(--line);margin-top:37px;font-size:10px;line-height:1.8}
.back-top{position:fixed;bottom:28px;right:26px;z-index:25;width:42px;height:42px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);border-radius:9px;box-shadow:0 5px 20px #17345710;color:var(--accent);font-size:18px}
.back-top:hover{background:var(--soft)}
@media(max-width:1100px){
 .feature-layout{grid-template-columns:190px minmax(0,1fr);gap:36px}.feature-note{margin-left:226px}.capability-columns{gap:28px}
 .overview-layout{gap:45px}.gallery figure[data-kind^=app]{grid-column:span 6}.footer-grid{gap:30px}
 .hero{gap:35px;min-height:590px}.hero h1{font-size:56px}.hero-phone{width:140px}
}
@media(max-width:767px){
 .nav{height:72px}.navlinks{top:72px;box-shadow:0 15px 25px #142b4c0a}.navlinks a[aria-current=page]:after{display:none}.navlinks .nav-action{padding:12px;text-align:center}
 .hero{min-height:0;gap:15px;padding:47px 0 35px}.hero h1{font-size:54px}.hero p{font-size:15px}.hero-traits{gap:8px 16px}
 .product-scene{padding:30px 56px 55px 0}.hero-phone{width:109px;top:53px}.window-bar{height:22px;font-size:7px;padding:0 7px}.window-dots{font-size:6px;letter-spacing:1px}.desktop-frame{border-width:3px}.phone-frame{border-width:4px;border-radius:19px}.device-caption{font-size:9px;bottom:5px}
 .platform-strip{font-size:11px;gap:14px}.platform-names{gap:10px 19px;font-size:11px}
 .overview{padding:48px 0}.overview-layout{grid-template-columns:1fr;gap:30px}.overview h2{font-size:29px}.overview-links strong{font-size:14px}
 .section{padding:62px 0}.shot-wrap{padding:18px}.banner{padding:30px 26px}.banner h2{font-size:28px}.banner p{font-size:13px}
 .company-info h2{font-size:29px}.company-note{font-size:10px;margin-top:24px}
 .page-heading{padding:30px 0 36px}.page-heading h1{font-size:42px}.page-heading p{font-size:14px}.breadcrumb{margin-bottom:26px}
 .feature-layout{grid-template-columns:1fr;gap:32px}.feature-directory{position:static;border-top:0;padding:0}.feature-directory>p{margin-bottom:13px}.feature-directory nav{display:grid;grid-template-columns:1fr 1fr;gap:6px;border:1px solid var(--line);border-radius:9px;padding:10px}.feature-directory nav a{font-size:12px;gap:9px;padding:8px}.directory-demo{margin-top:16px}
 .capability-columns{grid-template-columns:1fr;gap:27px}.capability-columns section{margin:0;padding-bottom:27px}.capability-columns h2{font-size:23px}.feature-number{margin-bottom:11px}.capability-columns ul{font-size:13px}.feature-note{margin:28px 0 0;padding:20px}#management ul{grid-template-columns:1fr}
 .gallery-toolbar{gap:18px;margin-bottom:24px}.filter{gap:7px}.filter button{padding:9px 12px;font-size:11px}.gallery-count{font-size:10px}
 .gallery{grid-template-columns:1fr;gap:23px}.gallery figure[data-kind],.gallery[data-filter=app] figure,.gallery[data-filter=voice] figure[data-kind]{grid-column:1}
 .gallery figure[data-kind^=pc] button,.gallery[data-filter=voice] figure[data-kind^=pc] button{height:auto;min-height:190px;padding:12px}.gallery figure[data-kind^=pc] img{width:100%;height:auto}
 .gallery figure[data-kind^=app] button{height:475px;padding:22px}.gallery figcaption{padding:14px 1px}.zoom-hint{opacity:1;font-size:9px;padding:4px 7px;top:8px;right:8px}
 .lightbox{padding:13px;max-width:95vw}.lightbox img{max-width:86vw;max-height:61dvh}.lightbox-controls{gap:12px}.lightbox-controls button{font-size:11px;padding:8px 11px}.lightbox>p{font-size:10px}
 .platform-table{min-width:630px}.platform-table th,.platform-table td{padding:20px}.table-hint:after{content:" · 左右滑动查看";font-weight:400;color:var(--muted)}
 .demo-card{padding:24px 21px}.demo-card-top{gap:10px;margin-bottom:21px}.demo-badge{font-size:9px}.demo-card h3{font-size:22px}.demo-url{font-size:11px;padding:12px 10px}.demo-card .button{padding:11px 14px;font-size:12px}
 .experience-steps{grid-template-columns:1fr;gap:23px}.experience-steps li{padding-top:19px}.experience-steps li>span{margin-bottom:14px}.experience-steps h3{font-size:17px}
 .faq summary{font-size:14px;padding:21px 0}.faq details p{font-size:12px}
 .footer{padding-top:38px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 24px}.footer-brand{grid-column:1/-1}.footer-grid nav h3{margin:0 0 15px}.footer-grid nav a{font-size:11px}.footer-bottom{font-size:9px;margin-top:25px;padding-top:18px}.back-top{width:36px;height:36px;right:13px;bottom:17px}
}
@media(max-width:360px){.shell{width:calc(100% - 32px)}.hero h1{font-size:48px}.hero-phone{width:98px}.product-scene{padding-right:50px}.voice-visual{gap:12px;padding:22px 16px}.voice-visual .phone-frame{width:130px}.voice-visual .phone-frame:nth-child(2){width:112px}.filter button{padding:9px 10px}.demo-card .actions{gap:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button:hover{transform:none}}
/* 手机上的平台信息按行展开，保留表格的内容顺序。 */
@media(max-width:767px){
 .table-hint:after{content:none}
 .platform-table{min-width:0;width:100%}
 .platform-table thead{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
 .platform-table tbody{display:block}
 .platform-table tr{display:grid;grid-template-columns:1fr;padding:22px;border-bottom:1px solid var(--line)}
 .platform-table tr:last-child{border:0}
 .platform-table td{display:block;border:0;padding:0}
 .platform-table td:first-child{font-size:18px;margin-bottom:6px}
 .platform-table td:nth-child(2){font-size:12px;color:var(--muted);margin-bottom:14px}
 .platform-table td:last-child{font-size:11px;line-height:1.9}
 .platform-table .availability{font-size:10px;padding:3px 7px;margin-right:7px}
}
/* 框架与语言按职责逐行介绍，系统图与通信链路单独展示。 */
.navlinks{gap:25px}
.technology-intro{border-top:1px solid var(--line)}
.technology-intro h2{font-size:36px}
.technology-intro p:not(.eyebrow){font-size:14px;line-height:1.9;max-width:430px}
.stack-summary>div{display:flex;flex-direction:column;gap:7px;padding:20px 0;border-bottom:1px solid var(--line)}
.stack-summary>div:first-child{padding-top:0}
.stack-summary>div:last-child{border-bottom:0;padding-bottom:0}
.stack-summary span{font-size:11px;color:var(--muted)}
.stack-summary strong{font-size:16px;font-weight:600;letter-spacing:-.01em}
.tech-jump{display:flex;flex-wrap:wrap;gap:10px 28px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:65px;font-size:12px;color:var(--muted)}
.tech-jump a:hover{color:var(--accent)}
.tech-section{padding:0 0 80px;scroll-margin-top:110px}
.tech-section-head{display:grid;grid-template-columns:220px minmax(0,1fr);gap:70px;align-items:start;margin-bottom:35px}
.section-index{display:block;font-size:10px;letter-spacing:.1em;color:var(--accent);font-weight:650;padding-top:12px}
.tech-section-head h2{font-size:33px;margin-bottom:15px}
.tech-section-head p{font-size:14px;line-height:1.9;margin:0}
.tech-rows{border-top:1px solid var(--line)}
.tech-row{display:grid;grid-template-columns:290px minmax(0,1fr);gap:70px;padding:35px 0;border-bottom:1px solid var(--line)}
.tech-role>span{font-size:10px;color:#73829a;display:block;margin-bottom:13px;line-height:1.9}
.tech-role h3{font-size:21px;line-height:1.5;font-weight:650;margin:0 0 10px}
.tech-role p{font-size:12px;color:var(--accent);margin:0}
.tech-row>div:last-child>p{font-size:13px;line-height:2;max-width:780px;margin:18px 0 0}
.tech-tags{display:flex;flex-wrap:wrap;gap:8px}
.tech-tags span{font-size:10px;padding:4px 9px;background:var(--paper);border:1px solid var(--line);border-radius:5px;color:#566b88}
.tech-value{padding-left:15px;border-left:2px solid #d1def4}
.tech-value strong{display:block;font-size:10px;color:var(--ink);letter-spacing:.05em;margin-bottom:6px}
.language-note{background:var(--paper);padding:23px 28px;margin-top:28px;border-radius:8px}
.language-note strong{font-size:12px}
.language-note p{font-size:12px;line-height:1.9;margin:10px 0 0}
.architecture{display:grid;grid-template-columns:1fr 24px 1fr 24px .95fr;gap:17px;align-items:center;background:var(--paper);padding:34px;border:1px solid var(--line);border-radius:12px}
.architecture-clients,.architecture-services{display:grid;gap:18px}
.architecture-clients>div,.architecture-services>div,.architecture-data{padding:22px;background:#fff;border:1px solid var(--line);border-radius:8px;min-width:0}
.architecture span,.sdk-band>span{font-size:10px;color:var(--muted);display:block;margin-bottom:11px}
.architecture strong{font-size:15px;display:block;font-weight:650;line-height:1.6}
.architecture p{font-size:10px;line-height:1.8;margin:9px 0 0}
.architecture-arrow{color:#8da3c3;font-size:21px;text-align:center}
.sdk-band{display:grid;grid-template-columns:220px minmax(0,1fr);gap:35px;margin-top:22px;padding:24px 28px;border-left:3px solid var(--accent);background:var(--soft);border-radius:0 8px 8px 0}
.sdk-band>span{margin:4px 0 0;color:var(--accent)}
.sdk-band strong{font-size:14px;font-weight:650}
.sdk-band p{font-size:12px;line-height:1.9;margin:9px 0 0}
.advantage-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 65px}
.advantage-grid article{padding:28px 0;border-bottom:1px solid var(--line)}
.advantage-grid article>span{font-size:10px;letter-spacing:.1em;color:#8b9db7;display:block;margin-bottom:16px}
.advantage-grid h3{font-size:20px;margin-bottom:13px}
.advantage-grid p{font-size:13px;line-height:1.9;margin:0}
.tech-boundary{margin:35px 0 0}
@media(max-width:1100px){.navlinks{gap:18px;font-size:13px}.tech-section-head{grid-template-columns:190px minmax(0,1fr);gap:36px}.tech-row{grid-template-columns:245px minmax(0,1fr);gap:45px}.architecture{padding:25px;gap:10px}.architecture-clients>div,.architecture-services>div,.architecture-data{padding:17px}.architecture strong{font-size:13px}.sdk-band{grid-template-columns:190px minmax(0,1fr)}}
@media(max-width:767px){
 .technology-intro h2{font-size:29px}.stack-summary strong{font-size:14px}.stack-summary>div{padding:17px 0}
 .tech-jump{gap:13px 23px;font-size:11px;margin-bottom:38px}
 .tech-section{padding-bottom:53px}.tech-section-head{grid-template-columns:1fr;gap:16px;margin-bottom:27px}.section-index{padding:0;font-size:9px}.tech-section-head h2{font-size:28px}.tech-section-head p{font-size:13px}
 .tech-row{grid-template-columns:1fr;gap:22px;padding:29px 0}.tech-role h3{font-size:22px}.tech-role>span{margin-bottom:9px}.tech-role p{font-size:11px}.tech-row>div:last-child>p{font-size:12px;line-height:1.95;margin-top:17px}.tech-tags span{font-size:9px}
 .language-note{padding:21px}.language-note p{font-size:11px}
 .architecture{grid-template-columns:1fr;padding:21px;gap:18px}.architecture-clients,.architecture-services{gap:12px}.architecture strong{font-size:15px}.architecture p{font-size:11px}.architecture-arrow{transform:rotate(90deg)}
 .sdk-band{grid-template-columns:1fr;gap:12px;padding:20px}.sdk-band strong{font-size:13px}.sdk-band p{font-size:11px}
 .advantage-grid{grid-template-columns:1fr;gap:0}.advantage-grid article{padding:24px 0}.advantage-grid h3{font-size:19px}.advantage-grid p{font-size:12px}.tech-boundary{margin-top:26px}
}
.auxiliary-band{background:var(--paper);border-left-color:#bac8dc}
.auxiliary-band>span{color:var(--muted)}