:root{--blue:#1677ff;--ink:#0b1b33;--text:#334155;--muted:#838696;--border:#e5ebf0;--pale:#f8f9fa;--red:#ff4b55}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;color:var(--text);background:#fff;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;font-size:14px;line-height:1.6}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}img{max-width:100%;height:auto}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #93c5fd;outline-offset:3px}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--ink);line-height:1.4}button{border:0}button:disabled{cursor:not-allowed}[hidden]{display:none!important}.container{width:100%;max-width:1200px;padding-inline:24px;margin-inline:auto}.home-wrap{width:calc(100% - 48px);max-width:1109px;margin-inline:auto}.skip-link{position:fixed;top:-60px;left:16px;padding:10px 16px;background:#fff;z-index:10000}.skip-link:focus{top:8px}.text-link{color:var(--blue);font-weight:600}.text-button{color:var(--blue);background:transparent;padding:0}.home-btn{display:inline-flex;min-height:56px;align-items:center;justify-content:center;gap:12px;padding:14px 28px;border:1px solid transparent;border-radius:12px;font-size:18px;font-weight:700;line-height:26px;transition:background .18s,box-shadow .18s,transform .18s}.home-btn:hover{transform:translateY(-2px)}.home-btn.primary{color:#fff;background:var(--blue);box-shadow:0 8px 22px #1677ff1f}.home-btn.primary:hover{background:#0868ed;box-shadow:0 12px 24px #1677ff2b}.home-btn.outline{color:var(--blue);border-color:var(--blue);background:#fff}.home-btn.outline:hover{background:#f1f7ff}
/* The public header follows the official 68px inner row + 1px border. */
.site-header{position:sticky;top:0;z-index:100;background:#ffffffed;backdrop-filter:blur(16px);border-bottom:1px solid var(--border);box-shadow:0 1px 12px #0f285a0d}.header-inner{height:68px;display:flex;align-items:center;gap:12px}.brand{display:flex;flex:0 0 174px;align-items:center}.brand img{width:174px;height:58px;object-fit:contain}.desktop-nav{display:flex;align-items:center;margin-inline:auto}.desktop-nav>a{display:inline-flex;align-items:center;height:68px;padding:0 11px;border-bottom:2px solid transparent;color:#263b58;font-size:15px;white-space:nowrap}.desktop-nav>a:hover,.desktop-nav>a[aria-current=page]{color:var(--blue)}.desktop-nav>a[aria-current=page]{border-bottom-color:var(--blue);font-weight:600}.header-actions{display:flex;align-items:center;gap:16px}.header-actions>a:first-child{font-size:15px}.trial-btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:8px 22px;border-radius:24px;background:var(--red);color:#fff;font-weight:700;box-shadow:0 10px 24px #ff4b5540}.menu-toggle{display:none;position:relative;width:36px;height:36px;border-radius:50%;background:#f8fafc}.menu-toggle span,.menu-toggle span:before,.menu-toggle span:after{position:absolute;left:9px;width:18px;height:2px;content:"";background:#132339;transition:.2s}.menu-toggle span{top:17px}.menu-toggle span:before{left:0;top:-6px}.menu-toggle span:after{left:0;top:6px}.menu-toggle[aria-expanded=true] span{background:transparent}.menu-toggle[aria-expanded=true] span:before{top:0;transform:rotate(45deg)}.menu-toggle[aria-expanded=true] span:after{top:0;transform:rotate(-45deg)}.mobile-menu{padding:10px 20px 22px;background:#fff;border-top:1px solid var(--border)}.mobile-menu>a{display:block;padding:13px 12px;border-radius:7px;font-size:16px}.mobile-menu>a[aria-current=page]{color:var(--blue);background:#eff6ff}.mobile-menu>div{display:flex;align-items:center;gap:24px;padding:12px}
/* Home: centered official hierarchy, blue CTAs, complete supplied brand artwork. */
.hero-section{padding:70px 0 80px;background:#fff;text-align:center}.hero-copy h1{margin:0;font-size:60px;font-weight:800;line-height:72px;letter-spacing:-.04em;color:#0b1b33}.hero-copy>p{margin:16px auto 0;color:#687893;font-size:20px;line-height:32px}.hero-actions{display:flex;justify-content:center;gap:48px;margin-top:55px}.hero-actions .home-btn{min-width:180px}.hero-display{display:block;width:min(960px,calc(100% - 48px));margin:54px auto 0;line-height:0}.hero-display img{display:block;width:100%;object-fit:contain;border-radius:16px}.section-block{padding:88px 0}.section-heading{text-align:center;margin-bottom:64px}.section-heading h2{margin:0;font-size:48px;line-height:1.4;font-weight:800;letter-spacing:-.02em}.section-heading p{max-width:920px;margin:10px auto 0;color:#667085;font-size:20px;line-height:1.6}.feature-section{padding-top:48px}.feature-section .section-heading{margin-bottom:42px}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px}.feature-card{display:flex;flex-direction:column;min-height:395px;padding:48px;border-radius:24px;color:#fff;background:var(--blue);box-shadow:0 4px 8px #0000000f}.feature-icon{font-size:36px;line-height:44px;color:#fff}.feature-card h3{margin:22px 0 7px;color:#fff;font-size:28px;line-height:32px}.feature-card p{font-size:16px;line-height:24px;color:#ececfe}.feature-card a{display:flex;align-items:center;gap:26px;margin-top:auto;padding-top:20px;font-size:15px}.multi-device{display:block;width:min(820px,100%);margin:0 auto 55px;object-fit:contain}.capability-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:50px}.capability-grid article{padding:10px}.capability-grid article>span{display:grid;width:52px;height:52px;place-items:center;border-radius:12px;background:#eaf3ff;color:var(--blue);font-size:30px}.capability-grid h3{font-size:24px;margin:22px 0 12px}.capability-grid p{font-size:16px;line-height:1.8;color:#667085}.scene-section{position:relative;background:#f5f7fa;padding-block:100px}.scene-tabs{display:flex;gap:56px;justify-content:center;margin-bottom:70px}.scene-tabs button{background:transparent;border-bottom:3px solid transparent;padding:14px 6px;font-size:20px;color:#63738d}.scene-tabs button[aria-selected=true]{border-color:var(--blue);color:var(--blue);font-weight:700}.scene-content{display:grid;grid-template-columns:.85fr 1.15fr;gap:84px;align-items:center;min-height:500px}.scene-content h2{font-size:48px;margin-bottom:25px}.scene-content p{font-size:18px;line-height:1.9;color:#667085}.scene-content .home-btn{font-size:16px;margin-top:18px}.scene-content img{display:block;max-height:480px;margin:auto;object-fit:contain}.scene-heading{margin:90px 0 0}.tutorial-section{padding-block:100px}.article-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.article-card{display:block;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 8px 28px #0b1b3308;transition:transform .2s}.article-card:hover{transform:translateY(-4px)}.article-card>img{display:block;width:100%;height:190px;object-fit:contain;background:#f6f9fd}.article-card>div{padding:26px}.article-card span{font-size:12px;color:var(--blue)}.article-card h3{font-size:22px;margin:10px 0 15px}.article-card p{line-height:1.8;color:#838696}.article-card strong{color:var(--blue);font-size:14px}.promo-section{padding:76px 0 82px;text-align:center;background:#f5f7fa}.promo-section h2{font-size:48px;margin:0 0 16px}.promo-section p{font-size:18px;color:#687893;margin-bottom:30px}.promo-section>div>div{display:flex;justify-content:center;gap:20px}.promo-section .home-btn{min-width:180px;font-size:16px}
/* Price page retains the official order/configuration vocabulary without a fake checkout. */
.purchase-wrap{max-width:1180px}.purchase-hero{background:#f8f9fa;padding:64px 0 32px}.purchase-hero h1{font-size:46px;line-height:55px;margin:0 0 20px}.purchase-hero p{max-width:860px;font-size:17px;line-height:1.8;color:#667085}.purchase-tabs{display:flex;gap:12px;margin-top:30px}.purchase-tabs button{padding:13px 26px;color:#50637d;background:#fff;border:1px solid #dce6f3;border-radius:9px;font-weight:600}.purchase-tabs button[aria-selected=true]{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 7px 18px #1677ff30}.purchase-main{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:24px;align-items:start;padding-block:24px 80px}.purchase-left{min-width:0}.purchase-note{padding:17px 22px;border:1px solid #dbe7fc;border-radius:12px;background:#f1f7ff;line-height:1.8;color:#52718f;margin-bottom:20px}.purchase-note strong{color:var(--blue)}.order-card{padding:30px;border:1px solid #e4ebf3;border-radius:16px;background:#fff;box-shadow:0 8px 30px #0f284d08;margin-bottom:24px}.card-heading{display:flex;gap:14px;align-items:start;margin-bottom:26px}.card-heading>span{display:grid;place-items:center;width:36px;height:36px;flex:0 0 36px;border-radius:50%;color:#fff;background:var(--blue);font-size:18px;font-weight:700}.card-heading h2{font-size:19px;margin:0 0 4px;color:#0c2038}.card-heading p{font-size:13px;line-height:1.6;color:#8b99ac;margin:0}.filter-label{font-size:14px;font-weight:600;margin-bottom:12px}.line-filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}.line-filters button{padding:9px 14px;border:1px solid #dce6f3;border-radius:7px;background:#fff;color:#61748c}.line-filters button[aria-pressed=true]{border-color:var(--blue);background:#eff6ff;color:var(--blue)}.table-caption{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.table-caption strong{font-size:16px}.table-caption span{font-size:12px;color:#94a3b8}.price-table-scroll{overflow:auto;max-width:100%}.price-table{width:100%;border-collapse:collapse;white-space:nowrap;font-size:12px}.price-table th{font-weight:500;background:#f6f8fc;color:#7b8da3;padding:13px 10px;text-align:left;border-bottom:1px solid #e4ebf3}.price-table td{padding:16px 10px;border-bottom:1px solid #edf1f7}.select-product{padding:0;display:flex;gap:7px;align-items:center;color:#30445e;background:transparent;font-size:12px;min-height:24px}.selection-dot{display:block;width:14px;height:14px;flex:0 0 14px;border-radius:50%;border:1px solid #c2cfde}.product-row.selected{background:#f1f7ff}.product-row.selected .selection-dot{border:4px solid var(--blue)}.product-row{cursor:pointer}.product-row:hover{background:#f7faff}.original-price{color:#94a3b8;text-decoration:line-through}.sale-price{font-size:16px;font-weight:700;color:var(--blue);font-variant-numeric:tabular-nums}.period-note{display:flex;flex-wrap:wrap;gap:16px;margin-top:20px;color:#8697aa;font-size:12px}.period-note span:last-child{color:var(--blue)}.order-summary{position:sticky;top:93px;border:1px solid #dce6f3;border-radius:16px;padding:28px 24px;background:#fff;box-shadow:0 8px 30px #0f284d0d}.order-summary h2{font-size:18px;margin-bottom:25px}.order-summary dl{margin:0}.order-summary dl>div{display:flex;justify-content:space-between;gap:15px;margin-bottom:18px;font-size:13px}.order-summary dt{color:#94a3b8}.order-summary dd{margin:0;color:#2c4059;text-align:right;font-weight:600}.summary-price{border-top:1px solid var(--border);padding-top:24px;margin-top:24px;display:flex;flex-wrap:wrap;align-items:baseline;gap:6px}.summary-price>span{display:block;flex-basis:100%;font-size:13px;color:#71869d}.summary-price strong{font-size:36px;color:var(--blue);line-height:1.6}.summary-price small{color:#92a1b4}.order-summary .home-btn{width:100%;font-size:16px;min-height:48px;margin-top:15px}.order-summary>p{font-size:12px;color:#94a3b8;margin-top:15px}.summary-help{display:block;border-top:1px solid var(--border);padding-top:18px;font-size:13px;color:var(--blue)}.purchase-instructions ol{padding-left:24px;line-height:2;color:#667085}.purchase-instructions>a{color:var(--blue);font-size:14px}.purchase-faq{max-width:1180px;padding-block:0 85px}.purchase-faq .section-heading{margin-bottom:35px}.purchase-faq .section-heading h2{font-size:44px}.purchase-faq details{max-width:850px;margin:0 auto;padding:20px 5px;border-bottom:1px solid var(--border)}.purchase-faq summary{cursor:pointer;font-size:17px;list-style:none;color:#273d56}.purchase-faq summary:after{content:'+';float:right;color:#90a4bf}.purchase-faq details[open] summary:after{content:'−'}.purchase-faq details p{margin:16px 0 0;color:#75879c;line-height:1.9}
/* Help catalog matches the official guide layout and illustration. */
.guide-hero{background:#f8f9fa;overflow:hidden}.guide-hero-content{padding-top:68px;text-align:center}.guide-hero h1{font-size:clamp(38px,3vw,56px);line-height:1.25;font-weight:800;letter-spacing:-.04em;margin:0}.guide-hero-content>p{font-size:16px;color:#838696;margin:18px 0 0;line-height:1.6}.guide-search{display:flex;width:min(100%,564px);height:56px;align-items:center;margin:50px auto 0;padding:0 18px 0 25px;background:#fff;border:1px solid #b2b8c7;border-radius:10px}.guide-search:focus-within{border-color:#3b82f6;box-shadow:0 0 0 4px #3b82f61a}.guide-search input{width:100%;min-width:0;flex:1;border:0;outline:0!important;font-size:16px;color:#475569;background:transparent}.guide-search button{background:transparent;color:#94a3b8;font-size:30px;line-height:1;padding:6px}.guide-suggestions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:14px}.guide-suggestions button{padding:6px 17px;color:#64748b;font-size:13px;background:#fff;border:1px solid #cbd5e1;border-radius:99px}.guide-art{margin-top:18px;line-height:0}.guide-art img{display:block;width:100%;height:auto}.guide-catalog{padding:14px 0 76px}.catalog-layout{display:grid;max-width:1120px;grid-template-columns:260px minmax(0,1fr);gap:24px;align-items:start}.guide-sidebar{display:flex;flex-direction:column;gap:4px;padding-top:10px}.guide-sidebar button{display:flex;gap:12px;align-items:center;text-align:left;min-height:50px;padding:12px 18px;background:transparent;color:#334155;border-radius:10px;font-size:16px;font-weight:700}.guide-sidebar button span{color:#3b82f6;width:22px;text-align:center}.guide-sidebar button[aria-pressed=true]{background:#dbe8fe;color:#1e293b}.guide-panel{padding:36px 24px 40px;border:1px solid #edf0f4;border-radius:18px;box-shadow:0 12px 36px #0b1b330f;min-height:520px}.guide-panel-head{display:flex;justify-content:space-between;gap:20px;padding:0 18px 22px}.guide-panel-head h2{font-size:32px;margin:0;line-height:1.3}.guide-panel-head>span{font-size:13px;color:#94a3b8;margin-top:8px}.guide-row{border-radius:12px;overflow:hidden}.guide-row:hover,.guide-row:has(details[open]){background:#f4f5f6}.guide-row:has(details[open]){box-shadow:inset 3px 0 0 #3b82f6}.guide-row summary{display:flex;align-items:center;gap:15px;min-height:94px;padding:16px 18px;list-style:none;cursor:pointer}.guide-row summary::-webkit-details-marker{display:none}.guide-row summary>img{width:76px;height:53px;object-fit:contain;background:#f8faff;border:1px solid #e5ebf0;border-radius:5px}.guide-row summary>span{flex:1;min-width:0}.guide-row summary strong{display:block;color:#1e293b;font-size:16px;font-weight:500}.guide-row summary small{display:block;color:#8795a7;font-size:12px;line-height:1.7;margin-top:5px}.guide-row summary>b{color:#94a3b8;font-size:18px;font-weight:400}.guide-preview{padding:0 24px 22px;color:#64748b;font-size:14px;line-height:1.75}.guide-preview p{padding-top:15px;border-top:1px solid #e2e8f0}.guide-preview a{color:#3b82f6;font-weight:700}.guide-empty{padding:70px 20px;text-align:center;color:#94a3b8}.guide-help{padding:88px 0 100px;background:#f8f9fa}.guide-help h2{text-align:center;margin:0 0 52px;font-size:clamp(32px,3vw,48px)}.help-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px}.help-card{display:block;text-align:left;min-height:300px;padding:44px;border-radius:18px;background:#fff;box-shadow:0 14px 36px #0b1b330d;color:#0f172a}.help-card>span{display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:#dbe8fe;color:#2563eb;font-size:28px}.help-card h3{font-size:28px;margin:26px 0 12px}.help-card p{color:#838696;font-size:16px;line-height:1.7}.help-card strong{display:block;margin-top:26px;color:#475569;font-size:16px}
/* Official article channel / left classifications / right body. */
.article-channel{display:flex;align-items:center;gap:42px;min-height:60px;padding:0 28px;background:#f1f5f9;border-bottom:1px solid #94a3b8;font-size:14px}.article-channel a{display:flex;align-items:center;min-height:60px;border-bottom:3px solid transparent;white-space:nowrap}.article-channel a.active{color:#2563eb;border-color:#3b82f6;font-weight:700}.article-channel>span{color:#8392a4;font-size:13px}.article-layout{display:grid;grid-template-columns:360px minmax(0,1fr);min-height:820px;background:#f8f9fa}.article-sidebar{padding:36px 18px}.article-sidebar h2{font-size:14px;margin:6px 0 12px;padding:3px 14px;border-left:3px solid #3b82f6}.article-sidebar nav>a{display:block;min-height:40px;padding:10px 24px;font-size:13px;line-height:20px;color:#64748b}.article-sidebar nav>a[aria-current=page]{color:#2563eb;background:#eef2ff}.article-sidebar nav>a:hover{background:#eef2f7}.article-sidebar .sidebar-back{border-top:1px solid #e2e8f0;margin-top:30px;padding-top:20px;color:#2563eb}.article-sidebar-toggle{display:none}.article-content{min-width:0;padding:34px 72px 100px;background:#fff;border-left:1px solid #e5e7eb}.article-content>article{max-width:900px}.article-head{padding-bottom:20px;margin-bottom:24px;border-bottom:1px solid #e5e7eb}.article-head h1{margin:0;font-size:28px;font-weight:800;line-height:1.4;letter-spacing:-.02em;color:#0f172a}.article-head time{display:block;margin-top:8px;font-size:12px;color:#94a3b8}.article-prose{font-size:15px;line-height:1.9;color:#1e293b;overflow-wrap:anywhere}.article-prose p{margin:0 0 18px}.article-prose h2{font-size:21px;margin:30px 0 14px}.article-prose ul,.article-prose ol{padding-left:24px;margin:0 0 20px}.article-prose li{margin-bottom:6px}.article-prose a{color:#1677ff}.article-prose .article-cta{display:inline-flex;padding:9px 20px;background:#1677ff;color:#fff;border-radius:7px}.article-prose figure{margin:24px 0 30px}.article-prose figure img{display:block;width:100%;height:auto;object-fit:contain}.article-prose figcaption{font-size:12px;color:#94a3b8;margin-top:8px}.article-prose table{width:100%;border-collapse:collapse;margin-bottom:24px}.article-prose th,.article-prose td{padding:10px 13px;border:1px solid #e2e8f0;text-align:left;font-size:14px}.article-prose th{background:#f8fafc}.related-articles{margin-top:40px;padding-top:25px;border-top:1px solid #e5e7eb}.related-articles h2{font-size:18px;margin-bottom:16px}.related-articles a{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:14px;border:1px solid #e5e7eb;font-size:13px}.related-articles a+a{border-top:0}.related-articles span{flex:0 0 auto;font-size:12px;background:#eef2ff;color:#6366f1;border-radius:99px;padding:4px 10px}
/* Real client links and versions, no simulated download or Apple CTA. */
.download-hero{padding:94px 0 0;background:#f8f9fa;text-align:center}.download-hero h1{font-size:56px;line-height:1.28;margin:0;font-weight:800;letter-spacing:-.04em;color:#0e0f10}.download-hero h1>span{color:#2860ed}.download-hero p{font-size:20px;color:#60667a;margin:16px 0 0}.platform-links{display:grid;width:min(916px,100%);grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:84px auto 0}.platform-link{display:flex;align-items:center;gap:14px;min-height:82px;padding:10px 16px;border:1px solid #e5ebf0;border-radius:12px;background:#fff;box-shadow:0 4px 24px #0000000d;text-align:left;color:#0b0d0e}.platform-icon{font-size:34px;line-height:1}.platform-link>span:last-child{display:flex;min-width:0;flex-direction:column;gap:5px}.platform-link strong{font-size:15px;white-space:nowrap}.platform-link small{width:fit-content;padding:3px 9px;border-radius:7px;background:var(--blue);box-shadow:0 4px 10px #1677ff33;color:#fff;font-size:12px;font-weight:700;white-space:nowrap}.platform-link.disabled small{color:#64748b;background:#eef2f7;box-shadow:none}.download-showcase{display:block;width:min(834px,100%);margin:66px auto 0;object-fit:contain}.version-section{padding-top:90px;padding-bottom:70px}.version-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.version-card{border:1px solid var(--border);border-radius:14px;padding:30px;background:#fff;text-align:center}.version-card h2{font-size:23px}.version-card>p{color:#8a96a8;font-size:13px}.version-card dl{text-align:left;margin:25px 0}.version-card dl>div{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid #edf1f5;font-size:13px}.version-card dt{color:#8c9bb0}.version-card dd{margin:0}.version-card>img{display:block;margin:20px auto}.version-card .home-btn{min-height:46px;font-size:15px;width:100%}.apple-note{text-align:center;color:#8a96a8;font-size:14px;margin-top:30px}.download-steps{padding-block:45px 100px;text-align:center}.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:55px;margin:50px auto}.step-grid article>span{display:grid;width:55px;height:55px;place-items:center;border-radius:50%;margin:0 auto 25px;background:#eaf3ff;color:#1677ff;font-size:23px;font-weight:700}.step-grid h3{font-size:23px}.step-grid p{font-size:16px;color:#838696}
/* Shared official-style footer with this project's real contact/filing details. */
.site-footer{background:#1a284e;color:#c8d2e3;min-height:420px}.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1.15fr;gap:55px;padding-block:58px 50px}.footer-brand>img{display:block;width:174px;background:#fff;border-radius:5px;margin-bottom:16px}.footer-brand p{font-size:15px;line-height:1.85;max-width:370px}.footer-top h3{color:#fff;font-size:17px;margin:10px 0 25px}.footer-top a,.footer-top .copy-link{display:block;color:#c8d2e3;line-height:2;font-size:14px;margin-bottom:6px}.footer-top a:hover,.copy-link:hover{color:#fff}.copy-link{background:transparent;text-align:left;padding:0}.copy-link small{font-size:10px;color:#93a3c0}.footer-qr{display:block;width:88px;height:auto;margin-top:13px}.footer-bottom{border-top:1px solid #ffffff14}.footer-bottom>.container{display:flex;justify-content:space-between;align-items:start;gap:22px;padding-block:24px 34px;color:#aebbd0;font-size:12px}.footer-bottom>.container>div{display:flex;gap:20px;flex-wrap:wrap}.footer-bottom a:last-child{display:flex;align-items:center;gap:5px;white-space:nowrap}.image-dialog{max-width:96vw;max-height:96vh;padding:40px 12px 12px;border:0;border-radius:8px;background:#fff}.image-dialog img{display:block;max-width:90vw;max-height:85vh;object-fit:contain}.dialog-close{position:absolute;right:10px;top:3px;background:transparent;font-size:30px;color:#62748b;line-height:32px;min-width:34px;min-height:34px}dialog::backdrop{background:#14243dbf}.contact-dialog{padding:34px 34px 30px;border:0;border-radius:14px;text-align:center;color:#334155;width:min(360px,92vw)}.contact-dialog h2{font-size:24px}.contact-dialog>img{display:block;width:200px;margin:auto}.contact-dialog>p{color:#7e8ba0}.contact-dialog>a{color:#1677ff}.toast{position:fixed;left:50%;bottom:25px;z-index:1000;transform:translateX(-50%);color:#fff;background:#203550;padding:10px 20px;border-radius:7px;opacity:0;pointer-events:none;transition:opacity .2s}.toast.show{opacity:1}
@media(min-width:1600px){.home-wrap{max-width:1320px}.hero-section{padding-bottom:100px}.hero-display{width:1080px}.feature-card{min-height:395px}.capability-section,.scene-section{padding-block:100px}}
@media(max-width:1100px){.hero-copy h1{font-size:48px;line-height:1.3}.hero-copy>p{font-size:18px}.feature-card{padding:32px}.scene-content{gap:40px}.purchase-main{grid-template-columns:minmax(0,1fr) 290px}.order-card{padding:22px}.article-layout{grid-template-columns:280px minmax(0,1fr)}.article-content{padding-inline:36px}.footer-top{gap:30px}}
@media(max-width:900px){.header-inner{padding-inline:20px}.desktop-nav,.header-actions{display:none}.brand{flex-basis:145px}.brand img{width:145px;height:48px}.menu-toggle{display:block;margin-left:auto}.feature-grid,.article-cards{grid-template-columns:1fr}.feature-card{min-height:245px}.capability-grid{gap:20px}.section-heading h2{font-size:38px}.scene-content{grid-template-columns:1fr;gap:40px;text-align:center}.scene-content img{max-height:380px}.catalog-layout{grid-template-columns:1fr}.guide-sidebar{flex-direction:row;gap:5px;overflow:auto;padding-top:0}.guide-sidebar button{flex:0 0 auto}.guide-art{display:none}.guide-hero-content{padding:56px 20px 48px}.guide-catalog{padding-top:32px}.purchase-main{grid-template-columns:1fr}.order-summary{position:static;order:-1}.order-summary dl{display:grid;grid-template-columns:1fr 1fr;column-gap:30px}.summary-price{margin-top:12px}.order-summary .home-btn{max-width:350px}.scene-tabs{gap:25px}.platform-links{grid-template-columns:repeat(2,minmax(0,1fr));max-width:640px;margin-top:48px}.version-grid{grid-template-columns:1fr}.article-cards>article,.article-card{display:grid;grid-template-columns:230px 1fr}.article-card>img{height:100%;min-height:220px}.footer-top{grid-template-columns:1.5fr 1fr 1fr}.footer-contact{grid-column:1 / -1}.footer-qr{width:110px}.footer-bottom>.container{display:block}.footer-bottom>.container>div{margin-top:14px}}
@media(max-width:640px){.container{padding-inline:20px}.header-inner{height:64px}.brand{flex-basis:145px}.hero-section{padding-top:40px;padding-bottom:65px}.hero-copy{padding-inline:16px}.hero-copy h1{font-size:32px;line-height:1.3;letter-spacing:-.035em}.hero-copy>p{font-size:14px;line-height:24px;margin-top:16px;color:#838696}.hero-actions{flex-direction:column;gap:12px;margin-top:32px}.hero-actions .home-btn{width:100%;min-height:47px;border-radius:10px;padding:10px 20px;font-size:15px;line-height:25px}.hero-display{width:calc(100% - 32px);margin-top:38px}.hero-display img{border-radius:8px}.home-wrap{width:calc(100% - 32px)}.section-block{padding-block:60px}.section-heading{margin-bottom:32px}.section-heading h2{font-size:28px;line-height:34px}.section-heading p{font-size:15px;line-height:22px}.feature-section{padding-top:32px}.feature-section .section-heading{margin-bottom:32px}.feature-grid{gap:16px}.feature-card{min-height:225px;padding:20px;border-radius:12px}.feature-icon{font-size:26px;line-height:30px}.feature-card h3{font-size:20px;line-height:24px;margin:16px 0 8px}.feature-card p{font-size:14px;line-height:22px}.feature-card a{font-size:13px;padding-top:12px}.capability-grid{grid-template-columns:1fr;gap:18px}.multi-device{margin-bottom:30px}.capability-grid h3{font-size:20px;margin-top:18px}.capability-grid p{font-size:14px}.scene-tabs{gap:16px;margin-bottom:30px}.scene-tabs button{font-size:15px;padding-inline:0}.scene-content{min-height:0;gap:30px}.scene-content h2{font-size:30px;margin-bottom:16px}.scene-content p{font-size:15px;line-height:1.8}.scene-content .home-btn{min-height:46px;font-size:14px}.scene-content img{max-height:320px}.scene-heading{margin-top:55px}.article-cards{gap:20px}.article-card{display:block}.article-card>img{height:190px;min-height:0}.article-card>div{padding:22px}.article-card h3{font-size:20px}.promo-section{padding:60px 0}.promo-section h2{font-size:28px;line-height:1.4}.promo-section p{font-size:15px;line-height:1.8}.promo-section>div>div{flex-direction:column;gap:12px}.promo-section .home-btn{width:100%;min-height:47px;font-size:15px}.purchase-hero{padding:42px 0 24px}.purchase-hero h1{font-size:30px;line-height:1.35;margin-bottom:16px}.purchase-hero p{font-size:14px}.purchase-tabs{gap:7px;margin-top:24px;flex-wrap:wrap}.purchase-tabs button{padding:10px 12px;font-size:12px}.purchase-main{padding-block:20px 45px}.purchase-note{padding:15px;font-size:13px}.order-summary{padding:22px}.order-summary dl{display:block}.order-summary dl>div{margin-bottom:12px}.order-summary h2{margin-bottom:20px}.summary-price strong{font-size:32px}.order-card{padding:22px 16px;border-radius:12px}.card-heading{gap:12px}.card-heading h2{font-size:18px}.card-heading>span{width:30px;height:30px;flex-basis:30px;font-size:16px}.line-filters{gap:7px}.line-filters button{font-size:12px;padding:8px 10px}.price-table{min-width:610px}.period-note{gap:12px;font-size:11px}.purchase-faq{padding-bottom:55px}.purchase-faq .section-heading h2{font-size:30px}.purchase-faq summary{font-size:15px}.guide-hero-content{padding:42px 16px 38px}.guide-hero h1{font-size:34px}.guide-hero-content>p{font-size:14px;line-height:1.6;margin-top:13px}.guide-search{height:50px;margin-top:30px;padding-left:16px}.guide-search input{font-size:14px}.guide-suggestions{gap:8px}.guide-suggestions button{font-size:12px;padding:6px 13px}.guide-catalog{padding:24px 0 50px}.catalog-layout{gap:16px}.guide-sidebar button{font-size:14px;padding:10px 12px;gap:5px;min-height:44px}.guide-panel{min-height:400px;padding:26px 10px;border-radius:15px}.guide-panel-head{padding:0 12px 18px}.guide-panel-head h2{font-size:27px}.guide-row summary{padding:15px 12px;gap:12px}.guide-row summary>img{width:55px;height:45px}.guide-row summary strong{font-size:15px}.guide-row summary small{font-size:11px}.guide-preview{padding:0 14px 18px}.guide-help{padding:62px 0 70px}.guide-help h2{font-size:30px;margin-bottom:34px}.help-cards{grid-template-columns:1fr;gap:24px}.help-card{min-height:0;padding:32px 26px}.help-card h3{font-size:25px}.article-channel{gap:22px;padding-inline:20px;min-height:52px;overflow:auto;white-space:nowrap}.article-channel a{min-height:52px;font-size:13px}.article-channel>span{display:none}.article-layout{grid-template-columns:1fr;min-height:0}.article-sidebar{padding:16px 18px}.article-sidebar-toggle{display:flex;width:100%;justify-content:space-between;align-items:center;padding:12px;background:#fff;border:1px solid #e5e7eb;border-radius:7px;font-size:14px;color:#334155}.article-sidebar nav{display:none;padding-top:18px}.article-sidebar nav.open{display:block}.article-sidebar .sidebar-back{margin-top:12px}.article-content{padding:24px 20px 50px;border-left:0;border-top:1px solid #e5e7eb}.article-head h1{font-size:24px}.article-prose h2{font-size:20px}.article-prose{font-size:15px;line-height:1.9}.article-prose table{font-size:12px}.article-prose th,.article-prose td{font-size:12px;padding:8px}.related-articles a{align-items:start;flex-direction:column;gap:8px}.download-hero{padding:48px 0 0}.download-hero h1{font-size:32px;line-height:1.35}.download-hero p{font-size:14px;line-height:1.8;margin-top:16px}.platform-links{gap:10px;margin-top:32px}.platform-link{padding:13px 10px;gap:8px;min-height:86px}.platform-icon{font-size:25px}.platform-link strong{font-size:12px}.platform-link small{font-size:10px;padding:3px 6px}.download-showcase{margin-top:40px}.version-section{padding-top:55px;padding-bottom:30px}.version-card{padding:26px}.step-grid{grid-template-columns:1fr;gap:35px;margin-block:35px}.step-grid h3{font-size:21px;margin-bottom:12px}.step-grid p{font-size:14px}.download-steps{padding-block:35px 65px}.footer-top{grid-template-columns:1fr 1fr;gap:30px 20px;padding-top:42px}.footer-brand,.footer-contact{grid-column:1 / -1}.footer-top h3{font-size:16px;margin-bottom:18px}.footer-top a,.footer-top .copy-link{font-size:13px}.footer-bottom>.container{padding-bottom:32px}.footer-bottom>.container>div{display:grid;gap:10px}.footer-bottom a:last-child{white-space:normal}.home-btn{max-width:100%}}
@font-face{font-family:BenfuIcons;src:url('assets/fontawesome.woff2') format('woff2');font-weight:normal;font-style:normal;font-display:block}
.brand{flex-basis:144px}.brand img{width:160px;height:53.333px;margin-left:-8px}.desktop-nav>a{gap:5px}.caret{font-size:12px;color:#8697ac}.hero-copy.container{padding-inline:0}.guide-suggestions button{line-height:16px}.download-showcase{width:min(1029px,92vw);margin-top:68px}.android-icon{font:normal 32px BenfuIcons}.android-icon:before{content:'\f17b'}.platform-icon{display:flex;align-items:center;justify-content:center;flex:0 0 34px}.platform-icon>img{max-width:30px;height:34px;object-fit:contain}
@media(max-width:900px){.brand{flex-basis:145px}.brand img{width:145px;height:48px;margin-left:-7px}.download-showcase{width:100%}}
@media(max-width:640px){.hero-copy.container{padding-inline:16px}.download-showcase{margin-top:46px}.platform-icon{flex-basis:26px}.platform-icon>img{height:28px;width:25px}.android-icon{font-size:28px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Official help catalog: two categories and quiet text rows. */
.guide-row summary{justify-content:space-between;min-height:72px;padding:18px 24px;gap:24px}.guide-row summary strong{font-size:17px;line-height:1.6}.guide-row summary>b{flex-shrink:0;transition:rotate .2s}.guide-row details[open] summary>b{rotate:180deg}.guide-panel{min-height:520px}.guide-sidebar button{white-space:nowrap}.help-figure{max-width:720px}.article-prose .help-figure img{width:auto;max-width:100%;max-height:640px;margin:0 auto;border:1px solid #edf0f4}.article-prose .help-figure a{display:block;padding:14px;background:#f8fafc;border-radius:10px}.article-prose .help-figure figcaption{line-height:1.7}.article-source{margin-top:35px!important;padding-top:20px;border-top:1px solid #e5e7eb;font-size:12px;color:#8795a7}.article-sidebar h2:not(:first-child){margin-top:24px}
@media(max-width:640px){.guide-row summary{min-height:72px;padding:17px 12px;gap:15px}.guide-row summary strong{font-size:15px}.guide-panel{min-height:400px}.article-prose .help-figure a{padding:8px}.article-prose .help-figure img{max-height:550px}}

/* Quiet, always-available contact rail; icons use the existing local brand font. */
.contact-dock{position:fixed;z-index:90;right:20px;bottom:100px;display:flex;flex-direction:column;gap:12px}.contact-dock-button{position:relative;display:grid;place-items:center;width:50px;height:50px;border-radius:50%;color:#fff;box-shadow:0 4px 12px #0b1b331a;transition:transform .18s,box-shadow .18s}.contact-dock-button:hover,.contact-dock-button[aria-expanded=true]{transform:translateY(-2px);box-shadow:0 7px 18px #0b1b3326}.contact-dock-qq{background:#0bb5e8}.contact-dock-wechat{background:#07c160}.contact-dock-button i{font:normal 26px/1 BenfuIcons}.contact-dock-qq i:before{content:'\f1d6'}.contact-dock-wechat i:before{content:'\f1d7'}.contact-dock-button>span{position:absolute;right:calc(100% + 12px);padding:5px 10px;border:1px solid #edf0f4;border-radius:6px;background:#fff;color:#475569;font-size:12px;font-weight:500;white-space:nowrap;box-shadow:0 3px 12px #0b1b330a;opacity:0;pointer-events:none}.contact-dock-button:focus-visible>span{opacity:1}.contact-dock-button[aria-expanded=true]>span{opacity:0}.contact-popover{position:absolute;right:calc(100% + 14px);bottom:0;width:252px;padding:22px 20px 18px;border:1px solid #e5ebf0;border-radius:14px;background:#fff;box-shadow:0 10px 40px #0b1b3314;text-align:center}.contact-popover:after{content:'';position:absolute;right:-6px;bottom:20px;width:10px;height:10px;border-top:1px solid #e5ebf0;border-right:1px solid #e5ebf0;background:#fff;transform:rotate(45deg)}.contact-popover h2{font-size:17px;line-height:24px;margin:0 0 14px;font-weight:700}.contact-popover-close{position:absolute;top:7px;right:7px;display:grid;place-items:center;width:28px;height:28px;background:transparent;color:#94a3b8;font-size:22px;line-height:1;border-radius:50%}.contact-popover-close:hover{color:#334155;background:#f1f5f9}.contact-qq-number{margin:0 0 16px;color:#1677ff;font-size:24px;line-height:32px;font-weight:700;letter-spacing:.025em}.contact-copy{min-height:38px;width:100%;padding:8px 16px;border-radius:8px;color:#fff;background:#1677ff;font-size:14px;font-weight:600}.contact-copy:hover{background:#0868ed}.contact-popover .contact-popover-note{margin:14px 0 0;color:#8795a7;font-size:12px;line-height:20px}.contact-wechat-code{display:block;width:180px;height:200px;object-fit:contain;margin:0 auto}.contact-dock:has(.contact-dock-qq[aria-expanded=true]) .contact-popover:after{bottom:80px}body:has(dialog[open]) .contact-dock{visibility:hidden}
@media(max-width:640px){.contact-dock{right:12px;bottom:calc(18px + env(safe-area-inset-bottom));flex-direction:row;gap:8px;padding:6px;border:1px solid #edf0f4;border-radius:36px;background:#fffffff2;box-shadow:0 4px 18px #0b1b3312}.contact-dock-button{width:44px;height:44px;box-shadow:none}.contact-dock-button i{font-size:23px}.contact-popover{right:0;bottom:calc(100% + 12px);width:min(252px,calc(100vw - 32px));padding:22px 20px 18px}.contact-popover:after{right:22px;bottom:-6px;border-top:0;border-right:1px solid #e5ebf0;border-bottom:1px solid #e5ebf0}.contact-dock:has(.contact-dock-qq[aria-expanded=true]) .contact-popover:after{right:72px;bottom:-6px}.contact-dock-button>span{display:none}}
@media(prefers-reduced-motion:reduce){.contact-dock-button{transition:none}}

@media(min-width:1081px) and (max-width:1680px){body:has(.contact-dock) .stage-deco .dot-4{display:none}}