:root{color-scheme:dark;--bg:#0b0d10;--panel:#15181d;--line:#2a2e35;--text:#f4f1e9;--muted:#a6a6ad;--gold:#ebce82}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei",system-ui,sans-serif;font-size:15px;line-height:1.8}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{outline-offset:5px}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--gold)}button{cursor:pointer}[hidden]{display:none!important}.container{width:min(1180px,calc(100% - 48px));margin:auto}.site-header{position:sticky;top:0;z-index:10;background:#0b0d10ee;backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.header-inner{height:86px;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:700;line-height:1.6;white-space:nowrap}.brand img{border-radius:12px}.brand-sub{display:block;font-size:11px;color:var(--muted);font-weight:400;letter-spacing:1px}nav{display:flex;align-items:center;gap:25px;font-size:13px}nav a:hover,.text-link:hover{color:var(--gold)}.nav-download{padding:8px 14px;border:1px solid #655837;border-radius:8px;color:var(--gold)}.menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:7px 13px}.hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:58px;padding-top:84px;padding-bottom:70px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--gold);margin:0 0 20px}.hero h1{font-size:clamp(30px,3.3vw,46px);font-weight:700;line-height:1.45;letter-spacing:-1px;margin:0 0 23px}.hero h1 span{color:var(--gold)}.hero-description{color:var(--muted);max-width:480px;margin-bottom:26px}.button-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:9px;padding:12px 18px;font-size:14px;font-weight:700;border:1px solid transparent;line-height:1.5}.primary{background:var(--gold);color:#17130c}.primary:hover{background:#f8e2a7}.secondary{border-color:var(--line);background:#191c22;color:var(--text)}[aria-disabled=true]{background:#292b30;color:#a5a5ac;cursor:not-allowed}.hero-tags{display:flex;flex-wrap:wrap;gap:17px;margin-top:26px;color:var(--muted);font-size:11px}.hero-tags span:before{content:"✓";color:var(--gold);margin-right:5px}.hero-preview{background:var(--panel);padding:12px;border:1px solid #51432b;border-radius:17px;box-shadow:0 25px 100px #b1934112;transform:none}.preview-top,.preview-bottom{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:var(--muted);padding:6px 5px 14px}.preview-bottom{padding:14px 5px 0}.preview-bottom a{color:var(--gold)}video{width:100%;display:block;aspect-ratio:16/9;object-fit:contain;background:#07090c;border-radius:9px}.caption{font-size:11px;color:var(--muted);line-height:1.7;margin:10px 0 0}.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:21px 0;color:#c3c1bd;font-size:12px}.section{padding-top:76px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:28px}.section-heading h2,.download-panel h2,.contact-section h2{font-size:28px;line-height:1.5;font-weight:700;margin:0}.section-heading .eyebrow{margin-bottom:12px}.section-heading>p{max-width:320px;margin:0;color:var(--muted);font-size:12px}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.feature-card{padding:24px 20px;border:1px solid var(--line);border-radius:13px;background:linear-gradient(150deg,#191c22,#121419)}.feature-icon{width:38px;height:38px;border-radius:11px;background:#ebce8212;color:var(--gold);display:grid;place-items:center;font-size:20px}.feature-card h3{margin:20px 0 11px;font-size:17px;font-weight:700}.feature-card p,.case-card p{font-size:12px;color:var(--muted)}.card-tag{font-size:10px;display:block;color:#c8b984;margin-top:17px}.download-panel{display:grid;grid-template-columns:1.25fr 1fr;gap:70px;padding:42px;border:1px solid #57482a;border-radius:18px;background:radial-gradient(ellipse at 0 0,#79602023,transparent 65%),#15171b}.download-panel p{color:var(--muted);font-size:13px;max-width:480px}.download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.download-meta span{font-size:11px;padding:4px 10px;border:1px solid var(--line);border-radius:6px;color:#d0c6ab}.activation-steps{list-style:none;padding:0;margin:0;display:grid;align-content:center;gap:22px}.activation-steps li{display:flex;gap:17px}.activation-steps li>span{font-family:Georgia,serif;font-size:24px;color:var(--gold);line-height:1.5}.activation-steps h3{font-size:15px;font-weight:700;margin:0}.activation-steps p{font-size:12px;margin:3px 0 0}.section-note{font-size:11px;color:var(--muted);padding:13px 4px}.tutorial-tabs{display:flex;border-bottom:1px solid var(--line);gap:8px;overflow-x:auto}.tutorial-tabs button{white-space:nowrap;background:none;border:0;border-bottom:2px solid transparent;color:var(--muted);padding:14px 20px;font-size:13px}.tutorial-tabs button[aria-selected=true]{color:var(--gold);border-color:var(--gold)}.guide-panel{display:grid;grid-template-columns:.7fr 1.3fr;gap:52px;padding:35px;border:1px solid var(--line);border-top:0;border-radius:0 0 14px 14px;background:var(--panel)}.guide-label{font-size:10px;border:1px solid #534933;border-radius:5px;padding:4px 8px;color:var(--gold)}.guide-intro h3{font-size:23px;font-weight:700;margin:17px 0 13px}.guide-intro p{font-size:12px;color:var(--muted)}.guide-list{counter-reset:step;list-style:none;padding:0;margin:0}.guide-list li{position:relative;padding-left:45px;margin-bottom:23px}.guide-list li:last-child{margin:0}.guide-list li:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:27px;height:27px;display:grid;place-items:center;border:1px solid #5d4e2d;color:var(--gold);border-radius:50%;font-size:12px}.guide-list h4{font-size:14px;font-weight:700;margin:0 0 5px}.guide-list p{font-size:12px;color:var(--muted);margin:0}.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.case-card{padding:19px;background:var(--panel);border:1px solid var(--line);border-radius:14px}.case-title{display:flex;align-items:center;gap:13px;margin-bottom:17px}.case-title>span{font-family:Georgia,serif;color:var(--gold);font-size:25px}.case-title h3{font-size:16px;font-weight:700;margin:0}.case-title p{font-size:10px;margin:0}.text-link{font-size:11px;color:var(--gold);display:inline-block;margin:7px 18px 0 0}.notice{font-size:11px;color:var(--muted);line-height:2;border:1px solid #4c4027;border-radius:10px;padding:15px 18px;margin-top:20px;background:#d7b25908}.faq-search{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:9px;background:var(--panel);padding:12px 16px;margin-bottom:17px;color:var(--gold)}.faq-search input{border:0;background:none;color:var(--text);width:100%;font-size:13px}.faq-list details{border-bottom:1px solid var(--line);padding:17px 0}.faq-list summary{cursor:pointer;font-size:14px;font-weight:600}.faq-list details p{font-size:12px;color:var(--muted);max-width:960px;margin:14px 0 0;line-height:2}.contact-section{display:flex;align-items:center;justify-content:space-between;gap:40px;border-top:1px solid var(--line);margin-top:70px;padding-top:42px;padding-bottom:46px}.contact-section h2{font-size:23px}.contact-section p{font-size:12px;color:var(--muted);max-width:600px}.contact-action{display:flex;flex-direction:column;align-items:flex-start;gap:9px;min-width:160px}.contact-action>span:first-child{font-size:13px}.contact-action strong{font-size:21px;color:var(--gold);margin-left:8px}.site-footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;padding-top:22px;padding-bottom:28px;font-size:10px;color:var(--muted)}.skip-link{position:fixed;top:-100px;left:15px;background:var(--gold);color:black;padding:8px 16px;z-index:30}.skip-link:focus{top:12px}@media(max-width:980px){.hero{gap:28px;padding-top:55px}.feature-grid{grid-template-columns:repeat(2,1fr)}nav{gap:15px}.download-panel{gap:35px;padding:30px}.hero h1{font-size:35px}.guide-panel{gap:30px}.trust-strip{grid-template-columns:repeat(2,1fr)}}@media(max-width:720px){.container{width:calc(100% - 32px)}.header-inner{height:74px}.brand{font-size:14px}.brand-sub{font-size:10px}.menu-toggle{display:block}nav{display:none;position:absolute;top:74px;left:0;right:0;padding:18px;background:#11151b;border-bottom:1px solid var(--line);flex-wrap:wrap}nav.is-open{display:flex}.hero{grid-template-columns:1fr;padding-top:40px;padding-bottom:38px;gap:32px}.hero h1{font-size:34px}.hero-preview{transform:none}.section{padding-top:48px}.section-heading{align-items:flex-start;flex-direction:column;gap:12px}.section-heading h2,.download-panel h2{font-size:24px}.download-panel,.guide-panel{grid-template-columns:1fr;gap:28px;padding:24px}.case-grid{grid-template-columns:1fr}.tutorial-tabs button{padding:12px;font-size:11px}.contact-section{flex-direction:column;align-items:flex-start;margin-top:48px}.site-footer{flex-direction:column;gap:8px}.feature-card{padding:20px 16px}}@media(max-width:400px){.feature-grid{grid-template-columns:1fr}.trust-strip{font-size:10px}.hero h1{font-size:29px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
:root .portrait-heading{margin-top:42px}.portrait-case-grid video,.video-placeholder{aspect-ratio:9/16;width:min(100%,340px);margin:0 auto;object-fit:contain}.video-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px dashed #655837;border-radius:10px;background:linear-gradient(150deg,#1d222b,#0c1017);color:var(--muted);text-align:center;padding:20px}.video-placeholder>span{font-size:48px;color:var(--gold)}.video-placeholder strong{font-size:15px;color:var(--text)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.pricing-card{display:flex;flex-direction:column;min-width:0;padding:28px 24px}.pricing-card h3{margin:0 0 12px}.pricing-card .pricing-amount{font-size:40px;font-weight:700;line-height:1.4;color:var(--gold);margin:0 0 12px}.pricing-amount span{display:block;font-size:13px;font-weight:400;color:var(--muted)}.pricing-card ul{padding-left:20px;margin:12px 0 24px;color:var(--muted);font-size:13px;list-style:disc}.pricing-card li+li{margin-top:8px}.pricing-card .button{margin-top:auto}.pricing-notice{margin-top:24px}.pricing-notice p{margin:12px 0 0;overflow-wrap:anywhere}.pricing-notice strong{color:var(--text)}@media(max-width:980px) and (min-width:721px){nav{gap:12px;font-size:12px}.header-inner{gap:14px}}@media(max-width:720px){.pricing-grid{grid-template-columns:1fr}.pricing-card{padding:24px}.pricing-card .pricing-amount{font-size:36px}}
