:root{color-scheme:light;--bg:#fff;--soft:#f4f7fb;--panel:#fff;--ink:#0d172d;--muted:#61728e;--line:#dce5f1;--blue:#0865ea;--accent:#0865ea;--selected:#edf4ff;--shadow:0 8px 28px #152b5310;--radius:12px}
:root[data-theme=dark]{color-scheme:dark;--bg:#071023;--soft:#0a1429;--panel:#101c33;--ink:#f3f6fc;--muted:#a3b3cd;--line:#263956;--accent:#559aff;--selected:#132747;--shadow:0 8px 28px #0003}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;color:var(--ink);background:var(--bg);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button,a,summary{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:5px}button{border:0;background:none}img{max-width:100%}figure,p,h1,h2,h3,h4,dl{margin:0}svg{width:20px;height:20px;stroke-width:1.7;flex-shrink:0}ul,ol{margin:0;padding:0;list-style:none}h1,h2,h3,h4{line-height:1.35;letter-spacing:-.035em}h2{font-size:clamp(30px,3.05vw,46px);font-weight:700}h3{font-size:28px}.container{width:min(1440px,calc(100% - 112px));margin-inline:auto}.section-space{padding-block:100px}.section-intro{color:var(--muted);font-size:18px;margin-top:16px;line-height:1.8}.center-title{text-align:center}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:46px;padding:11px 25px;border-radius:8px;font-weight:500;transition:background .18s,transform .18s}.button.primary{background:var(--blue);color:white}.button.primary:hover{background:#0056cf;transform:translateY(-1px)}.text-link{display:inline-flex;gap:12px;align-items:center;color:var(--accent);font-weight:600}.text-link:hover{text-decoration:underline}.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;line-height:1}.brand img{display:block}.brand span{font-size:24px;font-weight:750;letter-spacing:-.025em}.site-header{background:var(--bg);position:sticky;top:0;z-index:10}.nav-wrap{width:min(1504px,calc(100% - 96px));height:78px;margin:auto;display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--line)}.desktop-nav{display:flex;gap:32px;margin:auto;font-size:14px;white-space:nowrap}.desktop-nav a:hover,.login-link:hover{color:var(--accent)}.nav-actions{display:flex;align-items:center;gap:24px}.theme-control{display:flex;border:1px solid var(--line);border-radius:8px;padding:2px;gap:2px}.theme-control button{display:flex;align-items:center;gap:6px;border:1px solid transparent;border-radius:6px;padding:8px 10px;font-size:13px;line-height:22px;color:var(--muted)}.theme-control button[aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:var(--selected)}.theme-control svg{width:17px;height:17px}.login-link{font-size:14px;white-space:nowrap}.nav-cta{font-size:14px;min-height:42px;padding:8px 18px;white-space:nowrap}.icon-button{width:44px;height:44px;display:inline-flex;justify-content:center;align-items:center;border-radius:8px}.icon-button:hover{background:var(--selected)}.menu-toggle,.mobile-nav{display:none}.skip-link{position:absolute;top:-100px;left:15px;z-index:30;padding:12px;background:var(--bg)}.skip-link:focus{top:5px}.hero{padding-top:44px;text-align:center}.hero h1{font-size:clamp(40px,4vw,64px);font-weight:750;line-height:1.3;letter-spacing:-.045em}.hero h1 span{display:block}.hero-copy{font-size:20px;color:var(--muted);margin-top:18px}.hero-cta{margin-top:24px;min-width:184px}.explore-link{display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;color:var(--muted);margin-top:12px}.audience{font-size:14px;color:var(--muted);margin-top:13px}.hero-media{max-width:1240px;margin:24px auto 0}.screenshot-frame{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:var(--soft)}.screenshot-frame img{width:100%;height:auto;display:block}.hero-frame{max-height:540px;overflow:hidden}.theme-dark{display:none!important}:root[data-theme=dark] .theme-light{display:none!important}:root[data-theme=dark] .theme-dark{display:block!important}figcaption,.media-caption{text-align:center;font-size:13px;color:var(--muted);margin-top:13px}.video-wrap{max-width:960px;width:calc(100% - 112px);margin:auto}.video-placeholder{margin-top:32px;aspect-ratio:16/9;width:100%;border:1px solid var(--line);border-radius:var(--radius);background:var(--soft)}.workflow-section{background:var(--soft)}.workflow-steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-top:50px;gap:28px}.workflow-steps li{position:relative;padding-right:22px}.workflow-steps li:not(:last-child):after{content:"";position:absolute;right:-10px;top:52px;bottom:0;width:1px;background:var(--line)}.step-number{color:var(--accent);font-size:24px;display:flex;align-items:center;gap:12px;margin-bottom:20px}.step-number span{height:1px;background:var(--accent);flex:1;opacity:.55}.workflow-steps li>svg{width:40px;height:40px;color:var(--accent);float:left;margin-right:16px}.workflow-steps h3{font-size:22px;padding-top:4px}.workflow-steps p{color:var(--muted);font-size:14px;margin:18px 0 0;clear:both}.confirmation-band{display:grid;grid-template-columns:1fr 1.55fr;gap:44px;align-items:center;margin-top:62px;border:1px solid var(--line);padding:30px;border-radius:18px}.confirmation-copy{padding:8px}.confirmation-copy>svg{width:32px;height:32px;color:var(--accent);margin-bottom:16px}.confirmation-copy h3{font-size:28px}.confirmation-copy p{color:var(--muted);margin-top:18px;font-size:15px}.task-example{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px 30px}.example-label{font-size:12px;color:var(--muted);margin-bottom:5px}.task-example h4{font-size:23px}.task-example>p:not(.example-label){color:var(--muted);font-size:13px;margin-top:8px}.criteria-label{display:block;margin-top:18px;font-size:13px}.criterion{display:flex;gap:12px;margin-top:10px;font-size:14px}.criterion svg{color:var(--accent);width:18px;height:18px;margin-top:3px}.task-facts{display:grid;grid-template-columns:repeat(3,1fr);margin-top:23px;border-top:1px solid var(--line);padding-top:17px}.task-facts div{padding-left:16px;border-left:1px solid var(--line)}.task-facts div:first-child{padding-left:0;border:0}.task-facts dt{color:var(--muted);font-size:12px}.task-facts dd{margin:3px 0 0;font-size:14px;font-weight:600}.feature-tabs{display:flex;justify-content:center;gap:42px;margin:36px 0 40px}.feature-tabs button{font-size:18px;color:var(--muted);border-bottom:3px solid transparent;min-height:48px;padding:5px 18px 15px}.feature-tabs button[aria-selected=true]{color:var(--accent);border-color:var(--accent);font-weight:600}.feature-panel{display:grid;grid-template-columns:minmax(0,2.3fr) minmax(270px,1fr);gap:54px;align-items:center}.feature-panel .screenshot-frame{aspect-ratio:1.65}.feature-panel img{height:100%;object-fit:cover;object-position:top}.feature-copy h3{font-size:30px}.feature-copy>p{color:var(--muted);font-size:16px;margin-top:16px}.feature-points{display:grid;gap:26px;margin:28px 0}.feature-points li{display:flex;align-items:flex-start;gap:14px}.feature-points li>svg{box-sizing:content-box;color:var(--accent);background:var(--selected);padding:10px;border-radius:9px;width:23px;height:23px}.feature-points strong{font-size:16px}.feature-points p{font-size:14px;color:var(--muted);margin-top:4px}.scenario-section{background:var(--soft)}.scenario-grid{display:grid;grid-template-columns:320px minmax(0,1fr);gap:58px;align-items:center}.scenario-copy h2{font-size:40px}.scenario-copy .section-intro{font-size:16px}.scenario-tabs{border:1px solid var(--line);border-radius:8px;overflow:hidden;display:grid;margin-top:28px}.scenario-tabs button{display:flex;align-items:center;gap:15px;text-align:left;padding:16px 20px;font-size:18px}.scenario-tabs button[aria-selected=true]{color:white;background:var(--blue);font-weight:600}.scenario-checks{display:grid;gap:17px;margin-top:34px}.scenario-checks li{display:flex;align-items:center;gap:16px;font-size:17px}.scenario-checks svg{color:var(--accent);width:23px;height:23px}.scenario-note{padding-top:25px;margin-top:34px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.scenario-note:before{content:"";display:inline-block;width:2px;height:16px;background:var(--accent);margin-right:14px;vertical-align:middle}.scenario-grid figure .screenshot-frame{aspect-ratio:auto}.scenario-grid figure img{height:auto;object-fit:contain}.faq-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:90px}.faq-grid h2{font-size:48px}.faq-grid .section-intro{font-size:16px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}.faq-list details[open]{border-top-color:var(--accent)}.faq-list summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:23px 0;font-size:18px}.faq-list summary::-webkit-details-marker{display:none}.faq-list details[open] summary{color:var(--accent)}.faq-list details[open] summary svg{transform:rotate(180deg)}.faq-list details>p{color:var(--muted);padding:0 38px 24px 0;font-size:16px;line-height:1.85}.closing{background:var(--selected);padding:55px 0}.closing .container{display:flex;align-items:center;justify-content:space-between;gap:30px}.closing h2{font-size:32px}.closing .button{min-width:220px;min-height:54px}.site-footer{padding-block:35px;display:flex;align-items:center;gap:45px;flex-wrap:wrap}.site-footer .brand span{font-size:20px}.site-footer nav{display:flex;gap:30px;font-size:14px;color:var(--muted)}.site-footer a:hover{color:var(--accent)}.footer-note{margin-left:auto;color:var(--muted);font-size:12px}.mobile-break{display:none}dialog{color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:30px;max-width:560px;width:calc(100% - 36px);max-height:85vh;box-shadow:0 24px 100px #0003}dialog::backdrop{background:#02081799}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.dialog-top h2{font-size:27px}#dialog-body p{color:var(--muted);margin:15px 0;line-height:1.85}#dialog-body h3{font-size:18px;margin-top:22px}#dialog-body ol{padding-left:20px;list-style:decimal;color:var(--muted)}#dialog-body li{padding:5px 0}#dialog-body .button{margin-top:16px}.dialog-note{font-size:13px}.noscript-note{text-align:center;padding:18px}
@media(min-width:1650px){.hero h1{font-size:64px}.hero{padding-top:50px}}
@media(max-width:1250px){.desktop-nav{gap:18px}.nav-wrap{gap:22px;width:calc(100% - 48px)}.nav-actions{gap:16px}.theme-control button{padding:7px}.brand span{font-size:21px}.container{width:calc(100% - 64px)}.feature-panel{gap:30px;grid-template-columns:minmax(0,1.8fr) minmax(260px,1fr)}.scenario-grid{gap:34px;grid-template-columns:280px minmax(0,1fr)}.scenario-copy h2{font-size:35px}.confirmation-band{gap:25px}.footer-note{display:none}}
@media(max-width:1050px){.desktop-nav{display:none}.nav-actions{margin-left:auto}.menu-toggle{display:inline-flex}.mobile-nav:not([hidden]){display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:15px 24px;border-bottom:1px solid var(--line);background:var(--bg)}.mobile-nav a{padding:8px 10px}.feature-tabs{gap:20px}.section-space{padding-block:75px}.feature-panel{grid-template-columns:1fr}.feature-copy{max-width:750px}.feature-points{grid-template-columns:repeat(3,1fr);gap:20px}.feature-copy>p{max-width:650px}.scenario-grid{grid-template-columns:250px minmax(0,1fr)}.faq-grid{gap:45px}.faq-grid h2{font-size:40px}.closing h2{font-size:26px}.workflow-steps{gap:20px}.workflow-steps h3{font-size:19px}.workflow-steps li>svg{width:30px;height:30px;margin-right:10px}}
@media(max-width:700px){html{scroll-padding-top:135px}.container{width:calc(100% - 40px)}.nav-wrap{width:calc(100% - 32px);height:auto;min-height:104px;flex-wrap:wrap;gap:0;padding:13px 0 9px}.brand img{width:34px;height:34px}.brand span{font-size:21px}.nav-actions{gap:10px}.theme-control{position:absolute;left:16px;top:61px}.theme-control button{font-size:12px;padding:2px 10px;line-height:22px}.theme-control svg{width:14px;height:14px}.nav-cta{min-height:36px;padding:6px 12px;font-size:12px}.login-link{display:none}.menu-toggle{width:34px;height:36px}.mobile-nav:not([hidden]){grid-template-columns:repeat(2,1fr);font-size:14px}.hero{padding-top:38px}.hero h1{font-size:clamp(29px,6.85vw,44px);line-height:1.45;letter-spacing:-.045em}.hero-copy{font-size:15px;max-width:310px;margin:16px auto 0}.hero-cta{margin-top:22px;min-width:170px}.audience{font-size:12px}.hero-media{margin-top:28px}.hero-frame{max-height:320px;aspect-ratio:1.25}.hero-frame img{height:100%;object-fit:cover;object-position:left top}.section-space{padding-block:55px}h2{font-size:28px}.section-intro{font-size:15px;margin-top:12px}.video-wrap{width:calc(100% - 40px)}.video-placeholder{margin-top:25px}.workflow-steps{grid-template-columns:repeat(2,1fr);gap:30px 24px;margin-top:32px}.workflow-steps li{padding-right:0}.workflow-steps li:after{display:none}.step-number{font-size:21px;margin-bottom:12px}.workflow-steps h3{font-size:19px}.workflow-steps p{font-size:13px;margin-top:12px}.confirmation-band{grid-template-columns:1fr;padding:20px;gap:25px;margin-top:36px}.confirmation-copy{padding:0}.confirmation-copy h3{font-size:25px}.confirmation-copy p{font-size:14px}.task-example{padding:18px}.task-example h4{font-size:21px}.task-example .criterion{font-size:13px}.task-facts dd{font-size:13px}.task-facts div{padding-left:10px}.center-title{text-align:left}.feature-tabs{justify-content:space-between;gap:5px;margin:25px 0}.feature-tabs button{font-size:14px;padding:9px 3px;min-height:44px}.feature-panel{gap:26px}.feature-panel .screenshot-frame{aspect-ratio:1.2}.feature-panel img{object-position:18% top}.feature-copy h3{font-size:25px}.feature-copy>p{font-size:15px}.feature-points{grid-template-columns:1fr;gap:20px;margin:24px 0}.feature-points li{align-items:center}.scenario-grid{grid-template-columns:1fr;gap:28px}.scenario-copy h2{font-size:29px}.scenario-copy h2 br{display:none}.scenario-tabs{margin-top:24px}.scenario-tabs button{font-size:16px;padding:12px 16px}.scenario-checks{grid-template-columns:1fr 1fr;gap:14px 10px;margin-top:22px}.scenario-checks li{font-size:14px;gap:8px}.scenario-checks svg{width:19px;height:19px}.scenario-note{margin-top:24px;padding-top:20px}.faq-grid{grid-template-columns:1fr;gap:26px}.faq-grid h2{font-size:30px}.faq-grid h2 br{display:none}.faq-list summary{font-size:16px;padding:20px 0;gap:12px}.faq-list details>p{font-size:14px;padding-right:20px}.closing{padding-block:38px}.closing .container{flex-direction:column;text-align:center;gap:24px}.closing h2{font-size:26px;line-height:1.55}.mobile-break{display:block}.closing .button{min-width:200px}.site-footer{gap:24px;padding-block:28px}.site-footer nav{gap:20px;font-size:13px;flex-wrap:wrap}dialog{padding:22px}.dialog-top h2{font-size:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

.product-guide{max-width:960px;margin:58px auto 0}.product-guide h3{font-size:24px;margin-bottom:20px}

.contact-section{background:var(--soft)}.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:80px;align-items:center;max-width:1120px}.contact-phone{display:inline-flex;align-items:center;gap:16px;margin-top:30px;font-size:clamp(26px,3vw,40px);font-weight:650;letter-spacing:.02em;color:var(--accent)}.contact-phone svg{width:28px;height:28px}.contact-phone:hover{text-decoration:underline}.contact-hint{margin-top:12px;font-size:14px;color:var(--muted)}.contact-wechat{text-align:center}.contact-wechat>a{display:block;width:240px;margin:auto;padding:12px;background:#fff;border-radius:12px}.contact-wechat img{display:block;width:100%;height:auto}.contact-wechat figcaption strong{display:block;font-size:16px;color:var(--ink)}.contact-wechat figcaption span{display:block;margin-top:6px;font-size:13px}@media(max-width:700px){.contact-grid{grid-template-columns:1fr;gap:32px}.contact-phone{margin-top:22px}.contact-wechat{justify-self:start;text-align:left}.contact-wechat>a{margin:0}.contact-wechat figcaption{text-align:left}}

.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:44px 60px;margin-top:44px}.pain-grid article{border-top:1px solid var(--line);padding-top:24px}.pain-label{color:var(--accent);font-size:14px}.pain-grid h3{font-size:28px;margin-top:12px}.pain-grid p{color:var(--muted);margin-top:16px;max-width:560px}.pain-grid .pain-value{color:var(--ink)}.pain-grid .text-link{margin-top:20px;font-size:14px}.faq-list p a{color:var(--accent);text-decoration:underline}@media(max-width:700px){.pain-grid{grid-template-columns:1fr;gap:30px;margin-top:28px}.pain-grid h3{font-size:25px}.pain-grid p{font-size:15px}}

.workflow-loop{display:flex;align-items:center;gap:18px;margin-top:32px;padding:20px 24px;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:14px}.workflow-loop>svg{width:28px;height:28px;color:var(--accent)}.workflow-loop p{flex:1}.workflow-loop strong{color:var(--ink)}.workflow-loop a{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;color:var(--accent)}.workflow-loop a:hover{text-decoration:underline}@media(min-width:701px) and (max-width:1050px){.workflow-steps{grid-template-columns:repeat(3,minmax(0,1fr))}.workflow-steps li:nth-child(3):after{display:none}.workflow-loop{flex-wrap:wrap}.workflow-loop a{margin-left:46px}}@media(max-width:700px){.workflow-steps li:last-child{grid-column:1/-1}.workflow-loop{align-items:flex-start;flex-wrap:wrap;padding:18px;gap:12px}.workflow-loop p{flex-basis:calc(100% - 40px)}.workflow-loop a{margin-left:40px}}

.pricing-section{background:var(--soft)}.pricing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;margin-top:44px;max-width:1000px;margin-inline:auto}.plan-card{position:relative;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px}.plan-card.plan-featured{border:2px solid var(--accent)}.plan-badge{position:absolute;top:-13px;left:28px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px}.plan-label{color:var(--accent);font-size:14px;font-weight:600}.plan-card h3{font-size:24px;margin-top:10px}.plan-price{display:flex;align-items:baseline;gap:8px;margin-top:18px;flex-wrap:wrap}.plan-price strong{font-size:40px;font-weight:700;letter-spacing:-.03em;color:var(--ink)}.plan-price span{font-size:15px;color:var(--muted)}.plan-price s{font-size:14px;color:var(--muted)}.plan-note{margin-top:8px;font-size:13px;color:var(--muted)}.plan-features{margin-top:22px;display:grid;gap:12px;flex:1}.plan-features li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink)}.plan-features svg{width:17px;height:17px;color:var(--accent);margin-top:3px;flex-shrink:0}.plan-cta{margin-top:26px;width:100%}.pricing-compare{display:flex;align-items:center;gap:14px;max-width:1000px;margin:26px auto 0;padding:16px 20px;border:1px solid var(--line);border-radius:10px;background:var(--selected);font-size:14px;color:var(--muted)}.pricing-compare svg{width:22px;height:22px;color:var(--accent);flex-shrink:0}.pricing-compare strong{color:var(--ink)}.storage-card{max-width:1000px;margin:22px auto 0;border:1px solid var(--line);border-radius:10px;background:var(--panel)}.storage-card summary{display:flex;align-items:center;gap:10px;padding:16px 20px;font-weight:600;cursor:pointer;font-size:15px}.storage-card summary svg{margin-left:auto;color:var(--muted)}.storage-table-wrap{padding:0 20px 8px;overflow-x:auto}.storage-table{width:100%;border-collapse:collapse;font-size:14px}.storage-table caption{text-align:left;color:var(--muted);font-size:13px;padding-bottom:10px}.storage-table th{text-align:left;font-weight:600;color:var(--muted);font-size:13px;border-bottom:1px solid var(--line);padding:8px 12px 8px 0}.storage-table td{padding:10px 12px 10px 0;border-bottom:1px solid var(--line);color:var(--ink)}.storage-table tr:last-child td{border-bottom:0}.storage-note{padding:0 20px 18px;font-size:13px;color:var(--muted)}.pricing-foot{max-width:1000px;margin:22px auto 0;font-size:13px;color:var(--muted);text-align:center}@media(max-width:700px){.pricing-grid{grid-template-columns:1fr;gap:20px;margin-top:28px}.plan-card{padding:26px 20px}.plan-price strong{font-size:34px}.pricing-compare{flex-wrap:wrap}.storage-table{font-size:13px}}