@font-face{font-family:'Lato';font-style:normal;font-weight:300;font-display:swap;src:url('fonts/lato-v25-latin-300.woff2') format('woff2');}@font-face{font-family:'Lato';font-style:normal;font-weight:400;font-display:swap;src:url('fonts/lato-v25-latin-regular.woff2') format('woff2');}@font-face{font-family:'Lato';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/lato-v25-latin-700.woff2') format('woff2');}@font-face{font-family:'Lato';font-style:normal;font-weight:900;font-display:swap;src:url('fonts/lato-v25-latin-900.woff2') format('woff2');}@font-face{font-family:'Outfit';font-style:normal;font-weight:600;font-display:swap;src:url('fonts/outfit-v15-latin-600.woff2') format('woff2');}@font-face{font-family:'Outfit';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/outfit-v15-latin-700.woff2') format('woff2');}@font-face{font-family:'Outfit';font-style:normal;font-weight:800;font-display:swap;src:url('fonts/outfit-v15-latin-800.woff2') format('woff2');}:root{--primary:#3366cc;--primary-hover:#204d80;--primary-light:#ebf2fa;--primary-glow:rgba(51,102,204,0.15);--secondary:#64748b;--secondary-hover:#475569;--success:#3366cc;--success-light:#ebf2fa;--warning:#fbc02d;--warning-light:#fffde7;--bg-main:#f5f5f5;--surface:#ffffff;--surface-hover:#f8fafc;--border-color:#dddddd;--border-focus:#3366cc;--text-main:#333333;--text-muted:#666666;--text-inverse:#ffffff;--shadow-sm:0 1px 3px rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.05),0 2px 4px -1px rgba(0,0,0,0.02);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1);--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--radius-full:9999px;--transition-fast:0.15s ease;--transition-normal:0.25s ease;--font-heading:'Lato',-apple-system,BlinkMacSystemFont,sans-serif;--font-body:'Lato',-apple-system,BlinkMacSystemFont,sans-serif;}[data-theme="dark"]{--primary:#BFDAF8;--primary-hover:#d8e8fc;--primary-light:rgba(191,218,248,0.15);--primary-glow:rgba(191,218,248,0.25);--secondary:#94a3b8;--secondary-hover:#cbd5e1;--success:#BFDAF8;--success-light:rgba(191,218,248,0.15);--warning:#fde293;--warning-light:rgba(253,226,147,0.15);--bg-main:#0b0f19;--surface:#1e293b;--surface-hover:#293548;--border-color:#334155;--border-focus:#BFDAF8;--text-main:#f8fafc;--text-muted:#94a3b8;--text-inverse:#0b0f19;--shadow-sm:0 1px 3px rgba(0,0,0,0.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.4);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.5);}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html,body{overflow-x:hidden;}body{font-family:var(--font-body);background:var(--bg-main);color:var(--text-main);line-height:1.6;min-height:100vh;display:flex;flex-direction:column;transition:background var(--transition-normal),color var(--transition-normal);}.container{max-width:980px;margin:0 auto;padding:0 15px;width:100%;}a{color:var(--primary);text-decoration:none;font-weight:700;transition:color var(--transition-fast);}a:hover{color:var(--primary-hover);text-decoration:underline;}h1,h2,h3,h4{font-family:var(--font-heading);font-weight:700;letter-spacing:-0.01em;color:var(--text-main);}.navbar-wrapper{background:var(--surface);border-bottom:3px solid var(--primary);width:100%;z-index:100;position:sticky;top:0;box-shadow:var(--shadow-sm);transition:background var(--transition-normal),border-color var(--transition-normal);}.navbar-container{display:flex;justify-content:space-between;align-items:center;padding:10px 1rem;min-height:56px;max-width:950px;margin:0 auto;}.brand-logo-link{display:inline-flex;align-items:center;text-decoration:none;transition:transform var(--transition-fast);}.brand-logo-link:hover{transform:translateY(-1px);}.site-logo-svg{height:38px;width:auto;max-width:190px;display:block;}.site-logo-svg .sfu-bg{fill:#0092cf;}.site-logo-svg .sfu-white{fill:#ffffff;}.site-logo-svg .sfu-accent{fill:#0092cf;transition:fill var(--transition-normal);}[data-theme="dark"] .site-logo-svg .sfu-bg{fill:#0092cf;}[data-theme="dark"] .site-logo-svg .sfu-white{fill:#ffffff;}[data-theme="dark"] .site-logo-svg .sfu-accent{fill:#BFDAF8;}[data-theme="dark"] .navbar-wrapper{background:var(--surface);border-bottom:2px solid var(--primary);}.nav-actions{display:flex;align-items:center;gap:0.5rem;}[data-theme="dark"] .step-tab.active{color:#0b0f19;font-weight:800;}[data-theme="dark"] .step-tab.active .step-num{background:rgba(11,15,25,0.2);color:#0b0f19;}[data-theme="dark"] .step-tab.completed .step-num{background:var(--primary);color:#0b0f19;}[data-theme="dark"] .btn-primary{color:#0b0f19;font-weight:700;}[data-theme="dark"] .btn-success{color:#0b0f19;font-weight:700;}[data-theme="dark"] .choice-header-badge{color:#0b0f19;font-weight:800;}[data-theme="dark"] .checkmark{border-color:#64748b;background-color:rgba(255,255,255,0.05);}[data-theme="dark"] .custom-checkbox:hover input ~ .checkmark{border-color:var(--primary);}[data-theme="dark"] .custom-checkbox input:checked ~ .checkmark{background-color:var(--primary);border-color:var(--primary);}[data-theme="dark"] .custom-checkbox input:checked ~ .checkmark::after{border-color:#0b0f19;}[data-theme="dark"] .device-badge-active{color:#0b0f19;}[data-theme="dark"] .btn-copy{border-color:rgba(191,218,248,0.3);}[data-theme="dark"] .choice-btn-sfu:hover .choice-action-btn{color:#0b0f19;}[data-theme="dark"] #switch-device-btn,[data-theme="dark"] .btn-sfu{color:#0b0f19 !important;}[data-theme="dark"] .btn-secondary{background:var(--surface);color:var(--text-main);border-color:var(--border-color);}[data-theme="dark"] .btn-secondary:hover:not(:disabled){background:var(--surface-hover);border-color:var(--text-muted);color:var(--text-main);}@media (max-width:767px){.site-logo-svg{height:32px;max-width:155px;}.navbar-container{padding:8px 12px;min-height:50px;}}.hero-section{padding:2.5rem 0 1.5rem;}.hero-card{background:var(--surface);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:2rem;box-shadow:var(--shadow-sm);text-align:center;transition:background var(--transition-normal),border-color var(--transition-normal);}.hero-badge{display:inline-flex;align-items:center;gap:0.5rem;background:var(--primary-light);color:var(--primary);padding:0.4rem 0.8rem;border-radius:var(--radius-full);font-size:0.8rem;font-weight:700;margin-bottom:1rem;}.pulse-dot{width:8px;height:8px;background:var(--primary);border-radius:50%;animation:pulse 2s infinite;}@keyframes pulse{0%{transform:scale(0.9);opacity:0.6;}50%{transform:scale(1.15);opacity:1;}100%{transform:scale(0.9);opacity:0.6;}}.hero-title{font-size:1.85rem;color:var(--text-main);margin-bottom:0.75rem;line-height:1.3;}.hero-description{color:var(--text-muted);font-size:1rem;max-width:680px;margin:0 auto 2rem;}.progress-container{max-width:600px;margin:0 auto 2rem;}.progress-header{display:flex;justify-content:space-between;font-size:0.85rem;color:var(--text-muted);margin-bottom:0.4rem;}.progress-bar-bg{background:var(--border-color);height:6px;border-radius:var(--radius-full);overflow:hidden;}.progress-bar-fill{background:var(--primary);height:100%;width:0%;transition:width var(--transition-normal);}.stepper-nav{display:flex;align-items:center;justify-content:center;gap:0.5rem;max-width:720px;margin:0 auto;flex-wrap:wrap;}.step-tab{background:var(--surface);border:1px solid var(--border-color);padding:0.5rem 0.9rem;border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;gap:0.4rem;font-family:var(--font-heading);font-weight:700;color:var(--text-muted);transition:all var(--transition-fast);}.step-tab:hover{border-color:var(--primary);color:var(--primary);}.step-tab.active{background:var(--primary);color:var(--text-inverse);border-color:var(--primary);}.step-tab.completed{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}.step-tab.completed.active{background:var(--primary);color:var(--text-inverse);}.step-num{width:20px;height:20px;border-radius:50%;background:rgba(0,0,0,0.05);display:flex;align-items:center;justify-content:center;font-size:0.75rem;}.step-tab.active .step-num{background:rgba(255,255,255,0.2);}.step-line{flex-grow:1;height:1px;background:var(--border-color);max-width:45px;}@media (max-width:600px){.step-line{display:none;}.stepper-nav{gap:0.4rem;}}.main-content{margin-bottom:4rem;}.step-card{display:none;background:var(--surface);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden;transition:background var(--transition-normal),border-color var(--transition-normal);}.step-card.active{display:block;}.step-header{background:#fdfdfd;padding:1.25rem 2rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;gap:1rem;transition:background var(--transition-normal);}[data-theme="dark"] .step-header{background:rgba(255,255,255,0.01);}.step-tag{background:var(--primary-light);color:var(--primary);padding:0.25rem 0.5rem;border-radius:var(--radius-sm);font-size:0.75rem;font-weight:700;}[data-theme="dark"] .step-tag{background:var(--border-color);color:var(--text-main);}.step-title{font-size:1.35rem;color:var(--text-main);flex-grow:1;}.step-body{padding:2rem;display:grid;grid-template-columns:1.15fr 1fr;gap:2rem;align-items:center;}@media (max-width:900px){.step-body{grid-template-columns:1fr;gap:1.5rem;}}.step-instruction-box{display:flex;flex-direction:column;gap:1.25rem;}.checklist{list-style:none;display:flex;flex-direction:column;gap:0.85rem;}.checklist-item{display:flex;align-items:start;}.custom-checkbox{display:inline-flex;align-items:start;gap:0.75rem;cursor:pointer;font-size:0.95rem;user-select:none;width:100%;}.custom-checkbox input{position:absolute;opacity:0;cursor:pointer;height:0;width:0;}.checkmark{width:20px;height:20px;border:1px solid var(--border-color);border-radius:var(--radius-sm);display:inline-block;flex-shrink:0;position:relative;transition:all var(--transition-fast);margin-top:2px;}.custom-checkbox:hover input ~ .checkmark{border-color:var(--primary);}.custom-checkbox input:checked ~ .checkmark{background-color:var(--primary);border-color:var(--primary);}.checkmark::after{content:"";position:absolute;display:none;left:7px;top:3px;width:5px;height:9px;border:solid var(--text-inverse);border-width:0 2px 2px 0;transform:rotate(45deg);}.custom-checkbox input:checked ~ .checkmark::after{display:block;}.check-text{color:var(--text-main);transition:color var(--transition-fast);}.custom-checkbox input:checked ~ .check-text{color:var(--text-muted);}.link-highlight{font-weight:700;display:inline-flex;align-items:center;gap:0.2rem;}.btn-copy{background:var(--primary-light);border:1px solid rgba(51,102,204,0.25);color:var(--primary);width:26px;height:26px;border-radius:var(--radius-sm);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;margin:0 0.35rem;vertical-align:middle;transition:all var(--transition-fast);}.btn-copy:hover{background:var(--primary);color:var(--text-inverse);}.tip-box{background:var(--surface-hover);border-left:4px solid var(--primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:1rem;display:flex;gap:0.75rem;box-shadow:var(--shadow-sm);}.tip-icon{font-size:1.1rem;}.tip-text{font-size:0.85rem;color:var(--text-muted);}.tip-box.success-tip{border-left-color:var(--primary);background:var(--primary-light);}.step-image-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0.5rem;width:100%;}.image-wrapper{border:1px solid var(--border-color);border-radius:var(--radius-sm);overflow:hidden;position:relative;cursor:zoom-in;box-shadow:var(--shadow-sm);transition:transform var(--transition-normal);margin:0 auto;width:100%;max-width:520px;}.image-wrapper:hover{transform:translateY(-1px);}.image-wrapper img{width:100%;height:auto;display:block;}.image-overlay{position:absolute;inset:0;background:rgba(51,102,204,0.4);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity var(--transition-fast);}.image-wrapper:hover .image-overlay{opacity:1;}.zoom-badge{background:var(--surface);color:var(--text-main);padding:0.5rem 1rem;border-radius:var(--radius-full);font-weight:700;font-size:0.8rem;display:flex;align-items:center;gap:0.4rem;box-shadow:var(--shadow-md);}.image-caption{font-size:0.78rem;color:var(--text-muted);text-align:center;font-style:italic;}.step-footer{padding:1.25rem 2rem;border-top:1px solid var(--border-color);display:flex;justify-content:space-between;background:var(--surface);}.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.7rem 1.2rem;font-size:0.9rem;font-weight:700;font-family:var(--font-heading);border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast);}.btn-primary{background:var(--primary);color:var(--text-inverse);}.btn-primary:hover{background:var(--primary-hover);box-shadow:0 4px 10px var(--primary-glow);}.btn-secondary{background:var(--surface);color:var(--text-main);border-color:var(--border-color);}.btn-secondary:hover:not(:disabled){background:var(--surface-hover);border-color:var(--text-muted);}.btn-secondary:disabled{opacity:0.5;cursor:not-allowed;}.btn-success{background:var(--primary);color:var(--text-inverse);}.btn-success:hover{background:var(--primary-hover);box-shadow:0 4px 10px var(--primary-glow);}.btn-ghost{background:transparent;color:var(--text-main);border:1px solid transparent;}.btn-ghost:hover{background:var(--primary-light);color:var(--primary);}.btn-icon{width:36px;height:36px;border-radius:var(--radius-sm);padding:0;background:transparent;border:1px solid var(--border-color);color:var(--text-main);}.btn-icon:hover{background:var(--surface-hover);border-color:var(--text-muted);}.icon-sun,.icon-moon{display:none;}[data-theme="light"] .icon-moon{display:block;}[data-theme="dark"] .icon-sun{display:block;}.thankyou-card{background:var(--surface);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:3rem 2rem;box-shadow:var(--shadow-lg);text-align:center;animation:fadeIn 0.3s ease-out;}@keyframes fadeIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}.thankyou-icon-wrapper{display:flex;justify-content:center;margin-bottom:1.5rem;}.thankyou-icon{background:var(--primary-light);color:var(--primary);width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 15px var(--primary-glow);}.thankyou-title{font-size:2rem;margin-bottom:0.75rem;color:var(--text-main);}.thankyou-subtitle{color:var(--text-muted);font-size:1.05rem;max-width:600px;margin:0 auto 1.5rem;}.thankyou-box{background:var(--primary-light);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.5rem;max-width:580px;margin:0 auto 2rem;}.heartfelt-text{font-family:var(--font-heading);font-size:1.1rem;font-weight:700;color:var(--primary);margin-top:0.75rem;}.thankyou-actions{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;}.lightbox-modal{position:fixed;inset:0;margin:auto;border:none;background:transparent;padding:1rem;max-width:100vw;max-height:100vh;width:100%;height:100%;outline:none;overflow:auto;box-sizing:border-box;}.lightbox-modal[open]{display:flex;align-items:center;justify-content:center;}.lightbox-modal::backdrop{position:fixed;inset:0;background:rgba(15,23,42,0.85);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);}.lightbox-content{background:var(--surface);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-lg);overflow:hidden;max-width:min(920px,92vw);max-height:90vh;width:fit-content;display:flex;flex-direction:column;margin:auto;}.lightbox-header{padding:0.85rem 1.25rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;background:var(--surface);flex-shrink:0;}.lightbox-title{font-size:1.1rem;}.lightbox-close{background:transparent;border:none;color:var(--text-muted);cursor:pointer;transition:color var(--transition-fast);}.lightbox-close:hover{color:var(--primary);}.lightbox-body{padding:1rem;display:flex;align-items:center;justify-content:center;text-align:center;overflow:auto;background:var(--surface-hover);}[data-theme="dark"] .lightbox-body{background:#0f172a;}.lightbox-body img{display:block;margin:0 auto;max-width:100%;max-height:75vh;width:auto;height:auto;object-fit:contain;border-radius:var(--radius-sm);}.toast-container{position:fixed;bottom:2rem;right:2rem;display:flex;flex-direction:column;gap:0.75rem;z-index:1000;}.toast{background:var(--surface);border:1px solid var(--border-color);border-left:4px solid var(--primary);border-radius:var(--radius-md);padding:0.75rem 1.25rem;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:0.5rem;color:var(--text-main);font-size:0.9rem;animation:slideIn 0.3s ease-out;}@keyframes slideIn{from{transform:translateX(100%);opacity:0;}to{transform:translateX(0);opacity:1;}}.footer{margin-top:auto;padding:2.5rem 0;border-top:1px solid var(--border-color);background:rgba(255,255,255,0.4);backdrop-filter:blur(8px);font-size:0.85rem;color:var(--text-muted);}[data-theme="dark"] .footer{background:rgba(15,23,42,0.4);}.footer-container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;}.footer-links{display:flex;gap:0.75rem;align-items:center;}@media print{body{background:white !important;color:black !important;}.navbar-wrapper,.hero-badge,.progress-container,.stepper-nav,.step-footer,.thankyou-actions,.btn-copy,.toast-container{display:none !important;}.step-card{border:none !important;box-shadow:none !important;background:transparent !important;display:block !important;padding:0 !important;margin-bottom:3rem !important;page-break-inside:avoid;}.hero-title{font-size:24pt !important;margin-bottom:2rem !important;}.step-body{grid-template-columns:1.2fr 1fr !important;padding:0 !important;gap:1.5rem !important;}.step-header{border-bottom:2px solid black !important;padding:1rem 0 !important;background:transparent !important;}.checkmark{border-color:black !important;}.custom-checkbox input:checked ~ .checkmark{background-color:black !important;border-color:black !important;}.custom-checkbox input:checked ~ .checkmark::after{border-color:white !important;}.custom-checkbox input:checked ~ .check-text{color:black !important;}}.mode-all .step-card{display:block !important;margin-bottom:2rem;}.mode-all .step-footer{display:none !important;}.mode-all .stepper-nav{display:none !important;}.mode-all .progress-container{display:none !important;}.sfu-choice-box{background:linear-gradient(180deg,var(--surface) 0%,var(--primary-light) 100%);border:1px solid var(--border-color);border-top:4px solid var(--primary);border-radius:var(--radius-lg);padding:3rem 2rem;box-shadow:var(--shadow-lg);text-align:center;}[data-theme="dark"] .sfu-choice-box{background:linear-gradient(180deg,var(--surface) 0%,rgba(51,102,204,0.2) 100%);}.choice-header-badge{display:inline-flex;align-items:center;gap:0.5rem;background-color:var(--primary);color:#ffffff;font-size:0.775rem;font-weight:800;letter-spacing:0.08em;padding:0.35rem 0.9rem;border-radius:var(--radius-full);margin-bottom:1.25rem;box-shadow:0 4px 12px var(--primary-glow);}.choice-btn-sfu{position:relative;background:var(--surface);border:2px solid var(--border-color);border-radius:var(--radius-lg);padding:2.25rem 1.5rem 1.75rem;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);display:flex;flex-direction:column;align-items:center;gap:0.85rem;box-shadow:var(--shadow-sm);text-align:center;}.choice-btn-sfu:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:0 12px 30px rgba(51,102,204,0.2);}.choice-badge{font-size:0.7rem;font-weight:800;letter-spacing:0.05em;padding:0.2rem 0.65rem;border-radius:var(--radius-sm);margin-bottom:0.25rem;}.badge-sfu{background-color:var(--primary-light);color:var(--primary);}.badge-sfu-dark{background-color:#204d80;color:#ffffff;}.choice-icon.icon-sfu{background:var(--primary-light);color:var(--primary);padding:0.85rem;border-radius:50%;border:2px solid rgba(51,102,204,0.2);}.choice-icon.icon-sfu-dark{background:#ebf2fa;color:#204d80;padding:0.85rem;border-radius:50%;border:2px solid rgba(32,77,128,0.2);}.choice-action-btn{margin-top:0.5rem;font-size:0.85rem;font-weight:700;padding:0.5rem 1.1rem;border-radius:var(--radius-md);transition:all var(--transition-fast);width:100%;}.btn-sfu{background-color:var(--primary);color:var(--text-inverse);box-shadow:0 4px 12px var(--primary-glow);}.btn-sfu:hover{background-color:var(--primary-hover);}.btn-sfu-dark{background-color:#204d80;color:#ffffff;box-shadow:0 4px 12px rgba(32,77,128,0.3);}.btn-sfu-dark:hover{background-color:#16365c;}.store-links{display:inline-flex;gap:0.4rem;margin-top:0.4rem;flex-wrap:wrap;width:100%;}.btn-store{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.75rem;font-weight:600;padding:0.25rem 0.6rem;border-radius:var(--radius-sm);background-color:var(--surface-hover);color:var(--text-main);border:1px solid var(--border-color);transition:all var(--transition-fast);text-decoration:none !important;}.btn-store:hover{background-color:var(--primary-light);color:var(--primary);border-color:var(--primary);}.step-image-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}@media (max-width:600px){.step-image-grid{grid-template-columns:1fr;}}.choice-section{padding:3.5rem 0 2.5rem;margin-top:1.5rem;}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.75rem;max-width:760px;margin:0 auto;}@media (max-width:768px){.choice-grid{grid-template-columns:1fr;gap:1.25rem;}.choice-section{padding:1.5rem 0;margin-top:0.5rem;}}.choice-subtitle{color:var(--text-muted);margin-bottom:2.75rem !important;font-size:1rem;}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.75rem;max-width:760px;margin:1.5rem auto 0;}@media (max-width:768px){.choice-subtitle{margin-bottom:2rem !important;}}.choice-badge-recommended{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.75rem;font-weight:800;padding:0.3rem 0.65rem;border-radius:var(--radius-sm);margin-bottom:0.5rem;background-color:var(--primary);color:#ffffff;box-shadow:0 2px 8px var(--primary-glow);}[data-theme="dark"] .choice-badge-recommended{background-color:var(--primary);color:#0b0f19;}.choice-btn-sfu.choice-recommended{border:2px solid var(--primary) !important;box-shadow:0 8px 24px rgba(51,102,204,0.22) !important;transform:translateY(-2px);}[data-theme="dark"] .choice-btn-sfu.choice-recommended{box-shadow:0 8px 24px rgba(191,218,248,0.25) !important;}@media (min-width:769px){#choose-computer-btn{order:1;}#choose-gsm-btn{order:2;}}@media (max-width:768px){.choice-grid{grid-template-columns:1fr;gap:1.25rem;}#choose-gsm-btn{order:1;}#choose-computer-btn{order:2;}}.device-switch-banner{background-color:var(--primary-light);border-bottom:1px solid var(--border-color);padding:0.75rem 0;font-size:0.9rem;color:var(--text-main);margin-bottom:1.5rem;}.switch-container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:0.75rem;}#switch-device-btn{background-color:var(--primary);color:var(--text-inverse) !important;border:1px solid var(--primary);font-weight:700;padding:0.45rem 1rem;border-radius:var(--radius-md);transition:all var(--transition-fast);cursor:pointer;box-shadow:0 2px 6px var(--primary-glow);}#switch-device-btn:hover{background-color:var(--primary-hover);border-color:var(--primary-hover);transform:translateY(-1px);}.btn-sm{padding:0.35rem 0.75rem;font-size:0.8rem;}.step-image-item{display:flex;flex-direction:column;align-items:center;width:100%;}@media (max-width:768px){.stepper-nav{justify-content:flex-start !important;padding:0.5rem 0.25rem;gap:0.35rem;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none;-webkit-overflow-scrolling:touch;}.stepper-nav::-webkit-scrollbar{display:none;}.step-tab{padding:0.4rem 0.65rem;font-size:0.8rem;gap:0.35rem;flex-shrink:0;white-space:nowrap;}.step-line{display:none;}.image-wrapper{max-width:360px;}.step-image-item.is-collapsed .image-wrapper{display:none !important;}.step-image-item.is-collapsed{padding:0.25rem 0;}.step-image-container.all-collapsed .image-caption{display:none !important;}.step-image-container.is-collapsed .image-wrapper,.step-image-container.is-collapsed .step-image-grid,.step-image-container.is-collapsed .image-caption{display:none !important;}.step-image-container.is-collapsed{padding:0.25rem 0;}}.btn-toggle-step-img{display:none;align-items:center;justify-content:center;gap:0.45rem;background-color:var(--surface-hover);color:var(--primary);border:1px solid var(--border-color);padding:0.45rem 1rem;border-radius:var(--radius-full);font-size:0.825rem;font-weight:700;cursor:pointer;transition:all var(--transition-fast);margin:0.35rem auto;box-shadow:0 1px 3px rgba(0,0,0,0.1);}.btn-toggle-step-img:hover{background-color:var(--primary-light);border-color:var(--primary);transform:translateY(-1px);}[data-theme="dark"] .btn-toggle-step-img{background-color:var(--surface);border-color:var(--border-color);color:var(--primary);}[data-theme="dark"] .btn-toggle-step-img:hover{background-color:var(--surface-hover);}