:root{color-scheme:light;--ink:#171b24;--muted:#667080;--orange:#c2410c;--orange-bright:#ed5b13;--line:#e3e6ec;--paper:#f7f8fa;--font:"Noto Sans CJK SC","Microsoft YaHei","PingFang SC",system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font:16px/1.75 var(--font);color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button svg,a svg{flex-shrink:0}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}img{max-width:100%;height:auto}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #3466ca;outline-offset:5px}.container{width:min(1280px,calc(100% - 96px));margin-inline:auto}.header{position:sticky;top:0;z-index:5;background:#f7f8faf5;border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.header-inner{height:88px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:inline-flex;gap:10px;align-items:center;font-size:25px;font-weight:800;letter-spacing:-1px;white-space:nowrap}.brand img{object-fit:contain}.brand-light{font-weight:500}.header nav{display:flex;gap:36px;font-size:14px;font-weight:500;color:#505967}.header nav a:hover,.text-link:hover{color:var(--orange)}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;padding:15px 23px;background:var(--orange);color:white;border:1px solid var(--orange);border-radius:7px;font-size:15px;font-weight:600;line-height:1.5;transition:background .16s,transform .16s}.button:hover{background:#bd3f05;border-color:#bd3f05;transform:translateY(-2px)}.button-small{padding:11px 18px;font-size:14px}.button-outline{background:white;color:var(--ink);border-color:var(--line)}.button-outline:hover{background:#f4f5f7;border-color:#b5bdc8}.hero{display:grid;grid-template-columns:1fr 1.25fr;gap:38px;align-items:center;padding-block:96px 102px}.eyebrow{font-size:14px;font-weight:600;color:var(--orange);letter-spacing:.1em;margin:0 0 22px}.hero h1{font-size:clamp(34px,3.35vw,50px);letter-spacing:-.055em;line-height:1.42;font-weight:800;margin:0 0 26px;white-space:nowrap}.accent{color:var(--orange)}.hero-description{font-size:17px;line-height:1.95;color:#616a78;max-width:425px;margin:0 0 31px}.hero-actions{display:flex;align-items:center;gap:25px;flex-wrap:wrap}.text-link{display:flex;align-items:center;gap:4px;font-size:14px;font-weight:600;min-height:44px}.hero-note{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:#677181;font-size:12px;line-height:1.5;margin:25px 0 0}.hero-note svg{width:16px;height:16px}.hero-note>span{color:#b3bac3}.hero-product{background:white;border:1px solid #dde1e8;border-radius:12px;box-shadow:0 22px 60px -28px #24314a4a;overflow:hidden;transform:translateY(6px)}.product-heading,.demo-panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}.product-title{font-size:13px;font-weight:600}.demo-label,.demo-panel-top>span:last-child{color:#687180;font-size:12px}.screenshot-button{display:block;position:relative;padding:0;border:0;width:100%;background:white;overflow:hidden;text-align:left}.screenshot-button img{display:block;width:100%;height:auto}.zoom-hint{position:absolute;bottom:12px;right:12px;display:flex;gap:7px;align-items:center;padding:7px 10px;border-radius:5px;background:#fffefef5;color:#333b48;font-size:12px;border:1px solid #d9dee7;opacity:0;transition:opacity .2s}.zoom-hint svg{width:15px;height:15px}.screenshot-button:hover .zoom-hint,.screenshot-button:focus-visible .zoom-hint{opacity:1}.product-bottom{display:flex;align-items:center;justify-content:center;gap:27px;padding:15px;color:#657080;font-size:12px;border-top:1px solid var(--line)}.product-bottom svg{width:14px;height:14px;color:#abb2bd}.audience-strip{border-block:1px solid var(--line);background:white}.audience-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:24px}.audience-inner p{color:var(--muted);font-size:14px;margin:0}.audience-inner>span{font-size:14px;font-weight:500}.section{padding-block:98px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:44px}h2{font-size:36px;font-weight:750;line-height:1.5;letter-spacing:-.04em;margin:0}.section-heading .eyebrow{margin-bottom:14px}.section-heading>p{font-size:16px;color:var(--muted);margin:0 0 6px;line-height:1.9}.workflow-layout{display:grid;grid-template-columns:.85fr 1.45fr;gap:42px;align-items:center}.step-list{display:flex;flex-direction:column;gap:4px}.step{display:flex;gap:16px;width:100%;padding:23px 16px 23px 0;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--muted);text-align:left;align-items:flex-start;transition:color .15s}.step:first-child{border-top:1px solid var(--line)}.step-number{font-size:13px;font-weight:600;line-height:28px}.step strong{font-size:19px;font-weight:650;display:block;margin-bottom:9px;line-height:1.5}.step-description{font-size:14px;line-height:1.85;display:block;color:var(--muted)}.step>svg{margin-top:6px;width:17px;flex-shrink:0;visibility:hidden}.step:hover,.step.active{color:var(--ink)}.step.active .step-number{color:var(--orange)}.step.active>svg{color:var(--orange);visibility:visible}.step.active strong{color:var(--orange)}.demo-panel{border:1px solid var(--line);border-radius:8px;background:white;overflow:hidden;box-shadow:0 12px 32px -24px #27384e55}.demo-panel-top{font-size:14px;padding:15px 19px}.demo-note{text-align:right;font-size:12px;color:var(--muted);margin:22px 0 0}.features-section{background:#1b212c;color:#f7f8fa;padding-block:80px 84px}.features-section .eyebrow{color:#ff9d65}.features-section .section-heading>p{color:#a7b0bd}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;border-top:1px solid #38414f;padding-top:38px}.feature-icon{width:31px;height:31px;color:#ff9d65;stroke-width:1.45;margin-bottom:17px}.feature h3{font-size:20px;line-height:1.5;margin:0 0 13px;font-weight:600}.feature p{font-size:15px;line-height:1.9;color:#b7bfcb;margin:0;max-width:335px}.contact-section{display:grid;grid-template-columns:1.4fr 1fr;align-items:center;gap:125px;padding-block:100px}.contact-copy h2{font-size:39px}.contact-description{max-width:500px;color:var(--muted);font-size:16px;line-height:2;margin:23px 0 28px}.contact-steps{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:17px}.contact-steps li{display:flex;align-items:center;gap:16px;font-size:15px}.contact-steps li span{font-size:12px;font-weight:600;color:var(--orange);border:1px solid #e6d9d2;display:grid;place-items:center;width:28px;height:28px;border-radius:50%}.contact-tip{font-size:13px;color:var(--muted);margin:32px 0 0}.contact-card{background:white;padding:24px 26px 27px;border:1px solid var(--line);border-radius:10px;max-width:355px;width:100%;justify-self:center;box-shadow:0 20px 45px -30px #22335040;text-align:center}.contact-card-heading{display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap}.contact-card-heading svg{color:var(--orange);width:22px;height:22px}.contact-card-heading strong{font-size:19px}.contact-card-heading>span{display:block;width:100%;font-size:12px;color:var(--muted);margin-top:-2px}.qr-button{width:100%;border:0;padding:0;background:white;display:block;margin:8px 0 0}.qr-button img{display:block;width:100%}.contact-card>p{font-size:12px;color:var(--muted);margin:0 0 16px}.contact-card .button{width:100%;font-size:14px;padding:11px}.faq-section{display:grid;grid-template-columns:1fr 1.5fr;gap:80px;border-top:1px solid var(--line);padding-block:68px 92px}.faq-section h2{font-size:29px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;padding:20px 0;list-style:none;font-size:16px;font-weight:550}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary svg{width:18px;height:18px;color:#697484;flex-shrink:0;transition:transform .15s}.faq-list details[open] summary svg{transform:rotate(45deg)}.faq-list details p{margin:0 26px 22px 0;font-size:14px;color:var(--muted);line-height:1.95}footer{border-top:1px solid var(--line);background:white}.footer-inner{display:flex;gap:30px;align-items:center;justify-content:space-between;padding-block:30px}.footer-inner .brand{font-size:21px}.footer-inner p{font-size:13px;color:var(--muted);margin:0}.footer-inner>span{font-size:12px;color:var(--muted)}.skip-link{position:fixed;left:15px;top:-100px;z-index:30;background:var(--ink);color:white;padding:12px}.skip-link:focus{top:10px}dialog{width:min(1360px,calc(100% - 40px));max-height:92dvh;padding:0;border:1px solid #d5dbe5;border-radius:10px;background:white;box-shadow:0 24px 80px #0004;color:var(--ink)}dialog::backdrop{background:#111827b8;backdrop-filter:blur(5px)}.dialog-top{position:sticky;top:0;background:white;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:10px 16px;border-bottom:1px solid var(--line);z-index:1}.dialog-top p{font-size:14px;margin:0}.dialog-close{border:0;background:#eef0f3;border-radius:5px;min-width:40px;height:40px;display:grid;place-items:center;color:var(--ink)}#dialog-image{display:block;width:100%;height:auto}dialog.qr-dialog{width:min(400px,calc(100% - 36px))}dialog.qr-dialog #dialog-image{max-height:67dvh;width:auto;max-width:100%;margin:auto}#dialog-download{display:flex;margin:0 20px 20px}#dialog-download[hidden]{display:none}
@media(min-width:1700px){.hero{padding-block:110px}.container{width:min(1400px,calc(100% - 120px))}.hero h1{font-size:54px}}
@media(max-width:1100px){.container{width:calc(100% - 56px)}.hero{gap:24px;padding-block:70px}.hero h1{font-size:clamp(30px,3.65vw,41px)}.hero-description{font-size:16px}.hero-actions{gap:12px}.hero-actions .button{padding:13px 16px;font-size:14px}.hero-note{font-size:12px}.product-heading{padding:13px}.product-title{font-size:12px}.demo-label{font-size:12px}.product-bottom{gap:15px}.workflow-layout{gap:28px;grid-template-columns:.9fr 1.2fr}.step{padding-block:18px}.step strong{font-size:17px}.contact-section{gap:65px}.contact-copy h2{font-size:33px}.feature-grid{gap:30px}}
@media(max-width:800px){html{scroll-padding-top:88px}.container{width:calc(100% - 40px)}.header-inner{height:73px;gap:12px}.header nav{gap:18px}.header nav a{font-size:13px}.header nav a:nth-child(2){display:none}.brand{font-size:22px}.brand img{width:28px;height:28px}.header .button{font-size:13px;padding:10px 13px;gap:6px}.hero{grid-template-columns:1fr;padding-block:54px 48px;gap:39px}.hero-copy{max-width:590px}.hero h1{font-size:clamp(32px,5.8vw,44px);white-space:normal;letter-spacing:-.04em}.hero-description{max-width:540px}.hero-actions{gap:24px}.hero-note{font-size:12px}.hero-product{transform:none;width:100%}.product-title{font-size:14px}.audience-inner{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;padding-block:23px;text-align:center}.audience-inner p{grid-column:1/-1;font-size:12px}.audience-inner>span{font-size:13px}.section{padding-block:64px}.section-heading{align-items:flex-start;gap:24px;margin-bottom:32px}.section-heading>p{font-size:14px;max-width:280px}.section-heading>p br{display:none}h2{font-size:30px}.workflow-layout{grid-template-columns:1fr;gap:24px}.step-list{flex-direction:row;gap:12px}.step{padding:15px 0;gap:10px;border-top:1px solid var(--line);border-bottom:2px solid var(--line);flex:1}.step.active{border-bottom-color:var(--orange)}.step strong{font-size:15px;margin-bottom:0}.step-description,.step>svg{display:none}.step-number{font-size:12px;line-height:23px}.demo-note{text-align:left;font-size:12px}.features-section{padding-block:60px}.feature-grid{gap:26px}.feature h3{font-size:18px}.feature p{font-size:14px}.contact-section{grid-template-columns:1fr 1fr;gap:35px}.contact-copy h2{font-size:27px}.contact-description{font-size:14px}.contact-tip{font-size:12px}.contact-card{padding:20px}.faq-section{gap:40px;padding-block:50px 60px;grid-template-columns:.9fr 1.3fr}.faq-section h2{font-size:26px}.faq-list summary{font-size:14px}.footer-inner{flex-wrap:wrap;gap:12px}.footer-inner>span{width:100%}}
@media(max-width:540px){.container{width:calc(100% - 36px)}.header nav{display:none}.header-inner{height:68px}.header .button{padding:10px 13px}.hero{padding-block:42px 35px;gap:30px}.eyebrow{font-size:12px;letter-spacing:.06em;margin-bottom:15px}.hero h1{font-size:clamp(29px,7.7vw,41px);line-height:1.46;margin-bottom:19px}.hero-description{font-size:15px;line-height:1.9;margin-bottom:23px}.hero-actions{gap:18px}.hero-actions .button{font-size:14px;padding:13px 15px;gap:8px}.hero-actions .text-link{font-size:13px}.hero-note{font-size:12px;gap:6px;margin-top:19px;line-height:1.8}.hero-note svg{display:none}.product-title{font-size:12px}.product-heading{padding:12px}.demo-label{font-size:12px}.product-bottom{padding:12px;font-size:12px;gap:16px}.product-bottom svg{width:12px}.audience-inner{gap:12px;padding-block:20px}.audience-inner>span{font-size:12px}.section-heading{display:block;margin-bottom:26px}.section-heading>p{font-size:14px;margin-top:18px;max-width:none}h2{font-size:28px;line-height:1.45}.section{padding-block:53px}.step-list{gap:10px}.step{display:block;padding:11px 0}.step-number{display:block;margin-bottom:6px}.step strong{font-size:14px;line-height:1.6}.demo-panel-top{padding:12px;font-size:13px}.demo-note{font-size:12px;line-height:1.8;margin-top:16px}.features-section{padding-block:50px}.feature-grid{grid-template-columns:1fr;gap:0;padding-top:0;border-top:0}.feature{padding:26px 0 26px 48px;position:relative;border-top:1px solid #38414f}.feature:last-child{padding-bottom:0}.feature-icon{position:absolute;left:0;top:28px;width:27px;height:27px}.feature h3{font-size:18px;margin-bottom:9px}.feature p{max-width:none}.contact-section{grid-template-columns:1fr;gap:32px}.contact-copy h2{font-size:29px}.contact-description{font-size:15px;margin-top:18px}.contact-steps{gap:14px}.contact-steps li{font-size:14px}.contact-tip{margin-top:23px}.contact-card{max-width:330px;padding:22px 24px}.faq-section{grid-template-columns:1fr;gap:25px;padding-block:45px 48px}.faq-section h2 br{display:none}.faq-section h2{font-size:25px}.faq-section .eyebrow{margin-bottom:12px}.faq-list summary{font-size:15px;padding-block:18px}.footer-inner{padding-block:25px;gap:12px}.footer-inner .brand{font-size:20px}.footer-inner p{font-size:12px}.footer-inner>span{font-size:12px}dialog{width:calc(100% - 20px)}.dialog-top p{font-size:12px}.dialog-top{padding:8px 10px}.zoom-hint{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}

/* Screenshot guide: existing tabs and native image dialog, no tour dependency. */
.workflow-layout{grid-template-columns:250px minmax(0,1fr);align-items:start;gap:30px}.step{padding:14px 12px 14px 0;gap:13px}.step strong{font-size:17px;margin-bottom:3px}.step-description{font-size:12px}.step>svg{margin-left:auto}.demo-marker{position:absolute;transform:translate(-50%,-50%);display:grid;place-items:center;width:29px;height:29px;border:2px solid white;border-radius:50%;color:white;background:var(--orange);font-size:12px;font-weight:700;box-shadow:0 0 0 5px #dc4d0938,0 2px 8px #0003;pointer-events:none}.demo-guide{padding:19px 23px 16px;border-top:1px solid var(--line);min-height:0}.demo-target{font-size:14px;font-weight:650;color:var(--orange);margin:0 0 8px}#demo-action{font-size:14px;line-height:1.9;margin:0 0 12px}.demo-result{display:flex;gap:12px;font-size:13px;color:#4e5b6d;line-height:1.85;margin:0 0 9px}.demo-result strong{flex-shrink:0;font-weight:600}.demo-caution{font-size:12px;line-height:1.8;margin:0;color:var(--muted)}.demo-controls{display:flex;align-items:center;gap:15px;padding:15px 23px;border-top:1px solid var(--line);background:#fafbfc}.demo-controls .button{font-size:13px;padding:10px 14px;min-height:42px}.demo-controls button:disabled{opacity:.45;cursor:default;transform:none}.demo-controls [hidden]{display:none}#demo-progress{color:var(--muted);font-size:13px;margin-right:auto;white-space:nowrap}.demo-link{color:var(--orange);text-decoration:underline;text-underline-offset:4px}.demo-link:hover{color:#a53700}.demo-note{text-align:left}
@media(max-width:1100px){.workflow-layout{grid-template-columns:210px minmax(0,1fr);gap:22px}.step strong{font-size:16px}}
@media(max-width:800px){.workflow-layout{grid-template-columns:1fr;gap:20px}.step-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 16px}.step{display:flex;padding:12px 0;gap:8px;border-top:0;min-height:53px;align-items:center}.step:first-child{border-top:0}.step-number{margin:0;line-height:1.5}.step strong{font-size:14px;line-height:1.6;margin:0}.step-description,.step>svg{display:none}.demo-guide{min-height:0;padding:17px 18px}.demo-controls{padding:14px 18px;gap:12px}.demo-marker{width:25px;height:25px;font-size:11px}}
@media(max-width:540px){.step-list{gap:0 9px}.step{gap:5px}.step strong{font-size:13px}.step-number{font-size:11px}.demo-guide{min-height:0;padding:16px}.demo-controls{padding:13px 14px;gap:10px;flex-wrap:wrap}.demo-controls .button{padding:10px 12px;font-size:12px}#demo-contact{width:100%}.demo-marker{width:22px;height:22px;border-width:1.5px;font-size:10px;box-shadow:0 0 0 3px #dc4d0938,0 1px 4px #0003}.demo-panel .zoom-hint{display:flex;opacity:1;bottom:6px;right:6px;padding:3px 6px;font-size:10px}.demo-result{gap:9px}}

/* Keep each guide step in view and preserve detail in the native image dialog. */
html{scrollbar-gutter:stable}body:has(dialog[open]){overflow:hidden}.demo-panel{scroll-margin-top:12px}.demo-panel .screenshot-button{background:#eef0f3}.demo-panel .zoom-hint{opacity:1}.step{border-radius:5px}.step:hover{background:#eef0f3}.step.active{background:#fff0e6}.step-number{padding-left:8px}.demo-guide{padding-bottom:20px}.demo-controls .button{min-height:44px}.demo-controls button:disabled{opacity:1;color:var(--muted);background:#eef0f3;border-color:#dde1e8}.dialog-top{gap:10px}.dialog-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;border-bottom:1px solid var(--line)}.dialog-tools p{margin:0;font-size:12px;color:var(--muted)}.dialog-tools .button{min-height:44px;white-space:nowrap}.dialog-view{overflow:auto;overscroll-behavior:contain;max-height:68dvh;background:#eef0f3}.dialog-view:focus-visible{outline-offset:-3px}.dialog-canvas{position:relative;width:100%;line-height:0}.dialog-canvas .demo-marker{line-height:1.5}.dialog-target{padding:10px 16px;margin:0;border-top:1px solid var(--line);font-size:13px;color:var(--orange);font-weight:600}.dialog-tools[hidden],.dialog-target[hidden],.demo-marker[hidden]{display:none}.qr-dialog .dialog-view{background:white;max-height:none}.qr-dialog .dialog-canvas{line-height:normal}.qr-dialog #dialog-download{margin-top:12px}.dialog-close{min-width:44px;height:44px}.dialog-tools button:disabled{opacity:.5;cursor:wait}
@media(max-width:800px){.step.active{background:transparent}.step-number{padding-left:0}.demo-panel{scroll-margin-top:0}}
@media(max-width:540px){.dialog-top p{font-size:13px;line-height:1.6}.dialog-tools{padding:8px 10px;gap:8px}.dialog-tools p{max-width:155px}.dialog-tools .button{font-size:12px;padding:9px 12px}.dialog-target{padding:10px;font-size:13px}.dialog-view{max-height:62dvh}.demo-panel-top{font-size:14px}.demo-guide{padding-bottom:18px}}