:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}#root{width:100%;min-height:100vh;margin:0;padding:0;text-align:center}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 2em #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-reduced-motion: no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}:root{--primary-color: #4a6bff;--secondary-color: #6c757d;--light-color: #f8f9fa;--dark-color: #343a40;--success-color: #28a745;--danger-color: #dc3545;--warning-color: #ffc107;--info-color: #17a2b8;--border-color: #dee2e6;--border-radius: 4px;--box-shadow: 0 2px 5px rgba(0, 0, 0, .1);--transition: all .3s ease;--starchat-primary: #9966ff;--starchat-text: #ffffff;--starchat-bg: #1E122C;width:100%;height:auto}*{margin:0;padding:0;box-sizing:border-box}html,body{margin:0;padding:0;width:100%;height:100%;overflow-x:hidden;overflow-y:auto}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--dark-color);background-color:#f5f5f5}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 15px}a{color:var(--primary-color);text-decoration:none;transition:var(--transition)}a:hover{color:#3a53cc}.site-layout{display:flex;flex-direction:column;min-height:100vh;background-color:#fff}.site-content{flex:1;padding:60px 0 0}@media (max-width: 768px){.site-content{padding-top:90px}}.site-header{background-color:#ffffffd1;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);border-bottom:1px solid rgba(0,0,0,.05);padding:.75rem 0;position:fixed;top:0;left:0;right:0;z-index:1000;transition:all .3s ease}.site-header .container{display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:0 1.5rem}.site-header .logo-container{display:flex;align-items:center;gap:.5rem;z-index:1001}.site-header .logo-link{display:flex;align-items:center}.site-header .site-logo,.site-header .header-icon{max-height:32px;width:auto;border-radius:6px}.site-header .logo-text{font-size:1.1rem;font-weight:600;color:#1d1d1f;letter-spacing:-.01em}.site-header .site-nav ul{display:flex;list-style:none;gap:1.5rem;margin:0;padding:0}.site-header .site-nav a{font-weight:400;color:#1d1d1f;font-size:.9rem;transition:color .3s ease}.site-header .site-nav a:hover{color:#0071e3}.menu-toggle{display:none;z-index:1002;background:none;border:none;cursor:pointer;padding:10px;margin-right:-10px}.hamburger-box{width:24px;height:14px;display:inline-block;position:relative}.hamburger-inner{display:block;top:50%;margin-top:-1px}.hamburger-inner,.hamburger-inner:before,.hamburger-inner:after{width:20px;height:2px;background-color:#1d1d1f;position:absolute;transition:transform .2s ease,top .2s ease,bottom .2s ease,opacity .2s ease}.hamburger-inner:before,.hamburger-inner:after{content:"";display:block}.hamburger-inner:before{top:-6px}.hamburger-inner:after{bottom:-6px}.menu-toggle.active .hamburger-inner{transform:rotate(45deg)}.menu-toggle.active .hamburger-inner:before{top:0;opacity:0}.menu-toggle.active .hamburger-inner:after{bottom:0;transform:rotate(-90deg)}@media (max-width: 768px){.menu-toggle{display:block}.site-header .logo-text{display:none}.site-nav.tech-nav{position:fixed;top:57px;right:10px;width:280px;max-height:calc(100vh - 77px);background:#fff;border-radius:12px;box-shadow:0 10px 40px #00000026,0 2px 10px #0000001a;display:flex;flex-direction:column;align-items:stretch;padding:1rem 0;opacity:0;visibility:hidden;transform:translateY(-10px) scale(.95);transition:all .3s cubic-bezier(.4,0,.2,1);z-index:999;overflow-y:auto}.site-nav.tech-nav.active{opacity:1;visibility:visible;transform:translateY(0) scale(1)}.site-nav ul{flex-direction:column;width:100%;gap:0!important}.site-nav li{width:100%;border-bottom:1px solid rgba(0,0,0,.05)}.site-nav a{display:block;width:100%;padding:1rem 1.5rem;font-size:1rem!important;text-align:left}}.logo-container{flex:0 0 auto}.site-logo{max-height:40px;width:auto}.header-icon{max-height:40px;width:auto;margin-right:10px}.slogan-container{display:none}.site-nav ul{display:flex;list-style:none;gap:1.5rem}.site-footer{background-color:#f5f5f7;color:#86868b;padding:1.5rem 0;margin-top:auto;width:100%;font-size:.75rem;position:relative;z-index:10}.footer-content{display:flex;flex-direction:column;gap:.5rem;text-align:center;font-size:.8rem}.home-page{min-height:100vh;background-color:#fff;color:#222;position:relative;overflow-y:auto;display:flex;flex-direction:column}.home-page .scanline{display:none}.container{max-width:980px;margin:0 auto;padding:0 24px}.hero-section{padding:60px 24px 80px;text-align:center;background:linear-gradient(180deg,#fff,#f5f5f7)}.hero-content{max-width:600px;margin:0 auto}.hero-logo{width:96px;height:96px;border-radius:22px;margin-bottom:24px;box-shadow:0 8px 30px #2c1e741f}.hero-title{font-family:Outfit,DM Sans,sans-serif;font-size:80px;font-weight:500;line-height:1.1;letter-spacing:-.02em;margin:0 0 16px;color:#18181b}.hero-subtitle{font-family:DM Sans,sans-serif;font-size:24px;font-weight:400;line-height:1.5;color:#45515e;margin:0}.story-section{padding:80px 0;text-align:center}.story-text{font-family:DM Sans,sans-serif;font-size:20px;font-weight:500;line-height:1.5;color:#222;max-width:700px;margin:0 auto 24px}.story-goals{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;align-items:center}.story-goals li{font-family:DM Sans,sans-serif;font-size:16px;font-weight:400;color:#8e8e93;padding-left:24px;position:relative}.story-goals li:before{content:"→";position:absolute;left:0;color:#1456f0}.values-section{padding:80px 0;background-color:#f5f5f7}.section-title{font-family:Outfit,sans-serif;font-size:31px;font-weight:600;line-height:1.5;text-align:center;margin:0 0 40px;color:#18181b}.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.value-card{background:#fff;border-radius:20px;padding:32px 24px;text-align:center;box-shadow:#2c1e741c 6.5px 2px 17.5px;transition:transform .3s ease,box-shadow .3s ease}.value-card:hover{transform:translateY(-4px);box-shadow:#2c1e7429 0 0 15px}.value-icon{width:48px;height:48px;margin:0 auto 16px;color:#1456f0}.value-icon svg{width:100%;height:100%}.value-card h3{font-family:Outfit,sans-serif;font-size:24px;font-weight:500;color:#18181b;margin:0 0 12px}.value-card p{font-family:DM Sans,sans-serif;font-size:16px;font-weight:400;line-height:1.5;color:#45515e;margin:0}.nav-section{padding:80px 0}.nav-pills{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.nav-pill{font-family:DM Sans,sans-serif;font-size:14px;font-weight:500;line-height:1.5;padding:11px 20px;background:#0000000d;color:#18181b;border-radius:9999px;transition:all .3s ease}.nav-pill:hover{background:#1456f0;color:#fff}.belief-section{padding:80px 0;text-align:center;background:#fff}.belief-heading{font-family:Outfit,sans-serif;font-size:31px;font-weight:600;color:#18181b;margin:0 0 24px}.belief-text{font-family:DM Sans,sans-serif;font-size:24px;font-weight:500;line-height:1.5;color:#222;margin:0 0 24px}.belief-vision{font-family:DM Sans,sans-serif;font-size:16px;font-weight:400;line-height:1.5;color:#8e8e93;margin:0}.belief-vision strong{font-weight:700;color:#222}@media (max-width: 768px){.hero-section{padding:40px 24px 60px}.hero-title{font-size:48px}.hero-subtitle{font-size:18px}.hero-logo{width:80px;height:80px;border-radius:18px}.values-grid{grid-template-columns:1fr;gap:16px}.value-card{padding:24px 20px}.nav-pills{gap:8px}.nav-pill{font-size:13px;padding:9px 16px}.story-text{font-size:18px}.belief-text{font-size:20px}.section-title,.belief-heading{font-size:24px}}.home-content{min-height:calc(100vh - 60px);display:flex;flex-direction:column;padding-top:60px}.mobile-layout{display:flex;flex-direction:column;align-items:center;padding:2rem 1rem;text-align:center;padding-top:16px}.app-logo-container{margin-top:1rem;margin-bottom:1.5rem}.app-logo{width:100px;height:100px;border-radius:20px}.brand-container{margin-bottom:2rem}.brand-name{font-size:2rem;font-weight:600;margin-bottom:.5rem;color:#1d1d1f;letter-spacing:-.02em}.brand-slogan{font-size:1.1rem;color:#86868b;font-weight:400;margin-bottom:1.5rem}.download-buttons{display:flex;gap:1rem;margin-bottom:2rem;justify-content:flex-start}.download-button{display:flex;align-items:center;justify-content:center;gap:.5rem;background-color:#0071e3;color:#fff;border-radius:12px;padding:.75rem 1.5rem;font-weight:400;font-size:.95rem;transition:all .3s ease}.download-button:hover{background-color:#0077ed}.download-button .icon{display:flex;align-items:center;justify-content:center}.download-button .icon svg{width:20px;height:20px}.app-preview{margin-bottom:2rem;max-width:100%}.phone-preview{max-width:100%;height:auto;max-height:600px;margin-top:0}.footer-info{display:flex;flex-direction:column;gap:.75rem;text-align:center;font-size:.8rem;opacity:.8}.contact{display:flex;align-items:center;justify-content:center;gap:.5rem}.email-icon svg{width:16px;height:16px}.legal{display:flex;align-items:center;justify-content:center;gap:.5rem;flex-wrap:wrap}.privacy-link{color:#0071e3}.privacy-link:hover{color:#0077ed;text-decoration:underline}.separator{margin:0 .25rem}.icp{font-size:.75rem}.desktop-layout{display:flex;min-height:calc(100vh - 60px);max-width:1200px;margin:0 auto;align-items:flex-start;padding-top:0}.left-content{flex:1;display:flex;flex-direction:column;justify-content:start;padding:3rem 3rem 3rem 6rem;gap:1rem}.right-content{flex:1;display:flex;align-items:flex-start;justify-content:center;padding-top:3rem}.desktop-layout .app-logo-container,.desktop-layout .brand-container,.desktop-layout .download-buttons{padding-left:0;text-align:left}.app-logo{max-width:150px;max-height:150px;width:auto;height:auto;object-fit:contain}.desktop-layout .brand-name{font-size:2.8rem;text-align:left;letter-spacing:-.03em}.desktop-layout .brand-slogan{font-size:1.25rem;text-align:left;margin-bottom:2rem}.desktop-layout .app-preview{margin-bottom:0}.desktop-layout .footer-info{margin-top:auto;padding-top:2rem}.desktop-layout .download-buttons{justify-content:flex-start;margin-left:0}@media (max-width: 768px){.desktop-layout{flex-direction:column;padding:0 1rem}.left-content{padding-top:16px;text-align:center}.right-content{order:-1;padding-top:40px}.app-logo-container{margin-top:1.5rem;margin-bottom:1.5rem}}.document-container{background-color:#fff;border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:2rem;margin:2rem auto;max-width:800px;min-height:auto;overflow:visible}.document-container h1{margin-bottom:2rem;text-align:center}.document-container h2{margin:1.5rem 0 1rem;color:var(--primary-color)}.document-container ul{margin-left:2rem}.site-selector{padding:3rem 0;text-align:center;background-color:var(--starchat-bg);min-height:100vh;color:var(--starchat-text)}.site-selector h1{margin-bottom:2rem}.sites-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:2rem;padding:0 2rem}.site-card{display:block;background-color:#ffffff1a;border-radius:12px;box-shadow:0 4px 20px #0003;padding:2rem;transition:var(--transition);color:var(--starchat-text)}.site-card:hover{transform:translateY(-5px);background-color:#ffffff26}.site-card .site-logo{margin-bottom:1rem;height:80px;width:auto}.loading-container,.error-container{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;font-size:1.2rem;color:#1d1d1f;background-color:#fff;padding:2rem;text-align:center;width:100%;position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000}.loading-spinner{width:60px;height:60px;border:6px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:var(--starchat-primary);animation:spin 1s ease-in-out infinite;margin-bottom:2rem}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{margin-top:1rem;font-size:1.5rem;font-weight:700;margin-bottom:1rem}.loading-tips{opacity:.7;font-size:1rem;max-width:300px;line-height:1.5}.error-container{color:#ff6b6b}.error-container h2{font-size:2rem;margin-bottom:1rem}.error-container p{margin-bottom:1rem;max-width:600px}.error-container button{background-color:var(--starchat-primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;font-size:1rem;cursor:pointer;margin-top:1rem;transition:all .3s ease}.error-container button:hover{background-color:#8a5ae0}.not-found-page{text-align:center;padding:5rem 0;background-color:var(--starchat-bg);color:var(--starchat-text);min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center}.not-found-page h1{font-size:6rem;color:var(--starchat-primary)}.not-found-page h2{font-size:2rem;margin-bottom:1rem}.not-found-page p{margin-bottom:2rem}.back-home{display:inline-block;padding:.75rem 1.5rem;background-color:var(--starchat-primary);color:#fff;border-radius:var(--border-radius);font-weight:500}.back-home:hover{background-color:#8a5ae0;color:#fff}.debug-info{margin-top:2rem;padding:1.5rem;background-color:#0000004d;border-radius:8px;text-align:left;max-width:600px;width:100%}.debug-info h3{margin-bottom:1rem;color:#fc0}.debug-info p{margin-bottom:.5rem;font-family:monospace;font-size:.9rem}.privacy-policy-page,.user-agreement-page{min-height:100vh;height:auto;overflow:visible;display:flex;flex-direction:column;padding-top:80px;background-color:#fff;color:#333}.document-container{min-height:auto;overflow:visible;padding:2rem 0;flex:1;display:flex;flex-direction:column}.markdown-content{padding:0 2rem;text-align:left;font-size:16px;line-height:1.8;color:#333}.markdown-content h1{font-size:2.2rem;margin:2rem 0 1.5rem;color:#1a1a1a;border-bottom:2px solid #eee;padding-bottom:.5rem}.markdown-content h2{font-size:1.8rem;margin:1.8rem 0 1.2rem;color:#2c2c2c}.markdown-content h3{font-size:1.5rem;margin:1.5rem 0 1rem;color:#3c3c3c}.markdown-content p{margin:1rem 0;line-height:1.8;color:#444}.markdown-content ul,.markdown-content ol{margin:1rem 0;padding-left:2rem}.markdown-content li{margin:.5rem 0;line-height:1.6}.markdown-content ul li{list-style-type:disc}.markdown-content ol li{list-style-type:decimal}.markdown-content strong{font-weight:600;color:#1a1a1a}.markdown-content em{font-style:italic}.markdown-content blockquote{margin:1rem 0;padding:.5rem 1rem;border-left:4px solid #ddd;background-color:#f9f9f9;color:#666}.markdown-content code{background-color:#f5f5f5;padding:.2rem .4rem;border-radius:3px;font-family:monospace;font-size:.9em}.markdown-content pre{background-color:#f5f5f5;padding:1rem;border-radius:5px;overflow-x:auto;margin:1rem 0}.markdown-content pre code{background-color:transparent;padding:0}.markdown-content a{color:#06c;text-decoration:none;border-bottom:1px solid transparent;transition:border-color .3s}.markdown-content a:hover{border-bottom-color:#06c}.markdown-content img{max-width:100%;height:auto;margin:1rem 0;border-radius:5px}.markdown-content hr{border:none;border-top:2px solid #eee;margin:2rem 0}.markdown-content table{width:100%;border-collapse:collapse;margin:1rem 0}.markdown-content th,.markdown-content td{padding:.75rem;border:1px solid #ddd;text-align:left}.markdown-content th{background-color:#f5f5f5;font-weight:600}.markdown-content tr:nth-child(2n){background-color:#f9f9f9}@media (max-width: 768px){.document-container{margin:1rem;padding:1.5rem}.markdown-content{padding:0 1rem;font-size:15px}.markdown-content h1{font-size:1.8rem}.markdown-content h2{font-size:1.5rem}.markdown-content h3{font-size:1.3rem}}.content-wrapper{display:flex;flex-direction:column;gap:.5rem}.qa-page{min-height:100vh;background-color:#fff;color:#333;padding-top:80px;padding-bottom:2rem}.qa-page .container{max-width:800px}.qa-page .page-header{text-align:center;margin-bottom:2rem;padding:2rem 0}.qa-page .page-header h1{font-size:2.5rem;color:#1a1a1a;margin-bottom:.5rem}.qa-page .page-subtitle{font-size:1.1rem;color:#666}.qa-page .qa-list{display:flex;flex-direction:column;gap:1.5rem}.qa-page .qa-item{background-color:#f9f9f9;border-radius:8px;padding:1.5rem;border-left:4px solid var(--primary-color)}.qa-page .qa-question{margin-bottom:1rem}.qa-page .qa-answer{color:#555;line-height:1.8}.qa-page .qa-label{font-weight:700;color:var(--primary-color);margin-right:.5rem}.qa-page .qa-text{color:#333}.brand-intro-page{min-height:100vh;background-color:#fff;color:#333;padding-top:80px;padding-bottom:2rem}.brand-intro-page .container{max-width:900px}.brand-intro-page .page-header{text-align:center;margin-bottom:3rem;padding:2rem 0}.brand-intro-page .page-header h1{font-size:2.5rem;color:#1a1a1a;margin-bottom:.5rem}.brand-intro-page .page-subtitle{font-size:1.2rem;color:#666}.brand-intro-page .brand-content{text-align:left}.brand-intro-page .brand-image{text-align:center;margin-bottom:2rem}.brand-intro-page .brand-image img{max-width:100%;height:auto;border-radius:8px}.brand-intro-page .brand-text{line-height:1.8}.brand-intro-page .brand-intro-text{font-size:1.1rem;margin-bottom:1.5rem;color:#333}.brand-intro-page .brand-goals{list-style:none;padding:0;margin:1.5rem 0}.brand-intro-page .brand-goals li{padding:.5rem 0 .5rem 1.5rem;position:relative}.brand-intro-page .brand-goals li:before{content:"👉";position:absolute;left:0}.brand-intro-page .brand-section-title{font-size:1.5rem;color:#1a1a1a;margin:2rem 0 1rem;padding-top:1rem;border-top:1px solid #eee}.brand-intro-page .brand-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin:1.5rem 0}.brand-intro-page .brand-feature-item{background-color:#f9f9f9;padding:1.5rem;border-radius:8px}.brand-intro-page .brand-feature-item h3{color:var(--primary-color);margin-bottom:.5rem}.offline-events-page{min-height:100vh;background-color:#fff;color:#333;padding-top:80px;padding-bottom:2rem}.offline-events-page .container{max-width:900px}.offline-events-page .page-header{text-align:center;margin-bottom:2rem;padding:2rem 0}.offline-events-page .page-header h1{font-size:2.5rem;color:#1a1a1a;margin-bottom:.5rem}.offline-events-page .page-subtitle{font-size:1.2rem;color:#666}.offline-events-page .store-info{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:2rem}.offline-events-page .store-image{text-align:center}.offline-events-page .store-image img{max-width:100%;height:auto;border-radius:8px}.offline-events-page .store-address{font-size:1.1rem;margin-bottom:1rem}.offline-events-page .store-description{line-height:1.8;color:#555}.offline-events-page .store-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-top:2rem}.offline-events-page .feature-item{background-color:#f9f9f9;padding:1.5rem;border-radius:8px}.offline-events-page .feature-item h3{color:var(--primary-color);margin-bottom:.5rem}.offline-events-page .feature-item p{color:#555;line-height:1.6}.offline-teaching-page{min-height:100vh;background-color:#fff;color:#333;padding-top:80px;padding-bottom:2rem}.offline-teaching-page .container{max-width:900px}.offline-teaching-page .page-header{text-align:center;margin-bottom:2rem;padding:2rem 0}.offline-teaching-page .page-header h1{font-size:2.5rem;color:#1a1a1a;margin-bottom:.5rem}.offline-teaching-page .page-subtitle{font-size:1.2rem;color:#666}.offline-teaching-page .city-info{display:flex;flex-wrap:wrap;gap:2rem;justify-content:center;margin-bottom:2rem}.offline-teaching-page .city-section{text-align:center}.offline-teaching-page .city-section h3{margin-bottom:1rem;color:#333}.offline-teaching-page .city-tags{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center}.offline-teaching-page .city-tag{padding:.5rem 1rem;border-radius:20px;font-size:.95rem}.offline-teaching-page .city-tag.open{background-color:var(--primary-color);color:#fff}.offline-teaching-page .city-tag.coming-soon{background-color:#e0e0e0;color:#666}.offline-teaching-page .contact-info{text-align:center;padding:1.5rem;background-color:#f9f9f9;border-radius:8px;margin-bottom:2rem;line-height:1.8}.offline-teaching-page .teaching-gallery{display:flex;flex-direction:column;gap:1rem}.offline-teaching-page .gallery-item{overflow:hidden;border-radius:8px}.offline-teaching-page .gallery-item img{width:100%;height:auto;display:block;transition:transform .3s ease}.offline-teaching-page .gallery-item img:hover{transform:scale(1.02)}.business-cooperation-page{min-height:100vh;background-color:#fff;color:#333;padding-top:80px;padding-bottom:2rem}.business-cooperation-page .container{max-width:800px}.business-cooperation-page .page-header{text-align:center;margin-bottom:2rem;padding:2rem 0}.business-cooperation-page .page-header h1{font-size:2.5rem;color:#1a1a1a;margin-bottom:.5rem}.business-cooperation-page .page-subtitle{font-size:1.2rem;color:#666}.business-cooperation-page .cooperation-content{text-align:center}.business-cooperation-page .cooperation-image{margin-bottom:2rem}.business-cooperation-page .cooperation-image img{max-width:100%;height:auto;border-radius:8px}.business-cooperation-page .cooperation-text{font-size:1.2rem;line-height:1.8}.business-cooperation-page .cooperation-note{color:#666;font-size:1rem;margin-top:.5rem}@media (max-width: 768px){.qa-page .qa-item,.brand-intro-page .brand-feature-item,.offline-events-page .feature-item,.offline-teaching-page .feature-item{padding:1rem}.qa-page .page-header h1,.brand-intro-page .page-header h1,.offline-events-page .page-header h1,.offline-teaching-page .page-header h1,.business-cooperation-page .page-header h1{font-size:2rem}.brand-intro-page .brand-features,.offline-events-page .store-features,.offline-teaching-page .teaching-gallery{grid-template-columns:1fr}}