:root{--bg-main: #070B14;--bg-card: #0D1527;--bg-card-hover: #131E38;--bg-subtle: #111A30;--border-subtle: rgba(255, 255, 255, .08);--border-focus: rgba(56, 189, 248, .5);--text-primary: #F8FAFC;--text-secondary: #94A3B8;--text-muted: #64748B;--accent-cyan: #38BDF8;--accent-blue: #3B82F6;--accent-indigo: #6366F1;--accent-emerald: #10B981;--accent-gradient: linear-gradient(135deg, #38BDF8 0%, #3B82F6 50%, #6366F1 100%);--glow-cyan: rgba(56, 189, 248, .15);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-xl: 26px;--transition-fast: .2s ease;--transition-normal: .3s cubic-bezier(.16, 1, .3, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;color-scheme:dark}body{background-color:var(--bg-main);color:var(--text-primary);font-family:var(--font-sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;position:relative;width:100%}.bg-grid-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(to right,rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.02) 1px,transparent 1px);background-size:48px 48px;pointer-events:none;z-index:0}.bg-radial-glow{position:fixed;top:-240px;left:50%;transform:translate(-50%);width:1200px;height:700px;background:radial-gradient(circle,rgba(56,189,248,.12) 0%,rgba(99,102,241,.06) 50%,transparent 70%);pointer-events:none;z-index:0}.container{width:92%;max-width:1720px;margin-left:auto;margin-right:auto;padding-left:16px;padding-right:16px;position:relative;z-index:1}.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background-color:#070b14e0;border-bottom:1px solid var(--border-subtle);transition:all var(--transition-fast)}.nav-container{display:flex;align-items:center;justify-content:space-between;height:76px}.brand-link{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text-primary);font-weight:700;font-size:1.35rem;letter-spacing:-.02em}.brand-logo-img{width:40px;height:40px;border-radius:10px;object-fit:cover;box-shadow:0 2px 10px #38bdf840}.brand-accent{background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.nav-links{display:flex;align-items:center;gap:36px;list-style:none}.nav-link{color:var(--text-secondary);text-decoration:none;font-size:.95rem;font-weight:500;transition:color var(--transition-fast)}.nav-link:hover,.nav-link:focus-visible{color:var(--accent-cyan)}.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:#38bdf81a;border:1px solid rgba(56,189,248,.25);border-radius:var(--radius-sm);color:var(--accent-cyan);text-decoration:none;font-size:.9rem;font-weight:600;transition:all var(--transition-fast)}.nav-cta:hover{background:#38bdf833;border-color:var(--accent-cyan);transform:translateY(-1px)}.mobile-toggle{display:none;background:transparent;border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:8px;color:var(--text-primary);cursor:pointer}.mobile-toggle svg{display:block;width:24px;height:24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 26px;border-radius:var(--radius-md);font-size:.95rem;font-weight:600;text-decoration:none;cursor:pointer;transition:all var(--transition-normal);border:1px solid transparent}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 18px #38bdf840}.btn-primary:hover{box-shadow:0 6px 26px #38bdf873;transform:translateY(-2px)}.btn-secondary{background:#ffffff0d;border-color:var(--border-subtle);color:var(--text-primary)}.btn-secondary:hover{background:#ffffff17;border-color:#ffffff40;transform:translateY(-2px)}.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:9999px;font-size:.85rem;font-weight:600;letter-spacing:.02em;background:#38bdf814;border:1px solid rgba(56,189,248,.2);color:var(--accent-cyan);margin-bottom:24px}.badge-dot{width:7px;height:7px;border-radius:50%;background-color:var(--accent-emerald);box-shadow:0 0 10px var(--accent-emerald)}.hero-section{padding:70px 0 90px;text-align:center}.hero-content{width:100%;margin:0 auto}.hero-headline{font-size:clamp(2.6rem,5vw + 1rem,4.25rem);font-weight:800;line-height:1.15;letter-spacing:-.03em;margin-bottom:24px;max-width:1100px;margin-left:auto;margin-right:auto}.hero-subtitle{font-size:clamp(1.1rem,1.6vw,1.35rem);color:var(--text-secondary);max-width:950px;margin:0 auto 36px;line-height:1.65}.hero-actions{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;margin-bottom:60px}.hero-preview{width:100%;margin:0 auto;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);overflow:hidden;box-shadow:0 25px 70px -10px #000000a6,0 0 50px #38bdf814;text-align:left}.preview-window-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:#ffffff05;border-bottom:1px solid var(--border-subtle)}.window-dots{display:flex;gap:9px}.window-dot{width:11px;height:11px;border-radius:50%;background:#334155}.window-dot:nth-child(1){background:#ef4444;opacity:.75}.window-dot:nth-child(2){background:#f59e0b;opacity:.75}.window-dot:nth-child(3){background:#10b981;opacity:.75}.window-title{font-size:.85rem;color:var(--text-muted);font-family:var(--font-mono)}.window-badge{font-size:.78rem;padding:3px 10px;border-radius:var(--radius-sm);background:#38bdf81a;color:var(--accent-cyan);font-family:var(--font-mono)}.preview-tabs{display:flex;background:#00000040;border-bottom:1px solid var(--border-subtle);overflow-x:auto}.preview-tab{padding:14px 28px;background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);font-size:.92rem;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:10px;white-space:nowrap;transition:all var(--transition-fast)}.preview-tab:hover{color:var(--text-primary);background:#ffffff08}.preview-tab.active{color:var(--accent-cyan);border-bottom-color:var(--accent-cyan);background:#38bdf80d}.preview-panel{display:none;padding:36px}.preview-panel.active{display:block}.diagram-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:32px}.diagram-side{padding:28px;border-radius:var(--radius-lg);border:1px solid var(--border-subtle);background:#0d152799;display:flex;flex-direction:column}.diagram-side.highlighted{border-color:#38bdf859;background:#38bdf808}.diagram-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.diagram-header-title{font-size:1rem;font-weight:700;display:flex;align-items:center;gap:10px}.diagram-tag{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;padding:4px 10px;border-radius:var(--radius-sm)}.tag-raw{background:#ef444426;color:#f87171}.tag-visual{background:#10b98126;color:#34d399}.diagram-content-box{background:#080d1a;border-radius:var(--radius-md);padding:20px;border:1px solid rgba(255,255,255,.06);flex-grow:1;display:flex;flex-direction:column;justify-content:center}.code-snippet{font-family:var(--font-mono);font-size:.875rem;line-height:1.65;color:var(--text-secondary)}.code-keyword{color:#f472b6}.code-prop{color:#38bdf8}.code-str{color:#fde047}.code-comment{color:#64748b;font-style:italic}.flow-diagram{display:flex;flex-direction:column;gap:14px}.flow-step{display:flex;align-items:center;gap:14px;padding:12px 18px;border-radius:var(--radius-sm);background:#ffffff08;border:1px solid rgba(255,255,255,.07);font-size:.875rem}.flow-step-icon{width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.flow-arrow{text-align:center;color:var(--accent-cyan);font-size:.8rem;line-height:.5;font-weight:500}.section{padding:100px 0;position:relative;border-top:1px solid var(--border-subtle)}.section-header{text-align:center;max-width:820px;margin:0 auto 60px}.section-tag{font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.09em;color:var(--accent-cyan);margin-bottom:14px;display:inline-block}.section-title{font-size:clamp(2.1rem,3.5vw,2.9rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin-bottom:18px}.section-desc{font-size:1.15rem;color:var(--text-secondary);line-height:1.65}.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}.intro-text h3{font-size:2rem;font-weight:800;margin-bottom:22px;line-height:1.3}.intro-text p{color:var(--text-secondary);margin-bottom:22px;font-size:1.05rem}.intro-features{display:flex;flex-direction:column;gap:18px;margin-top:32px}.intro-feature-item{display:flex;align-items:flex-start;gap:16px}.feature-check-icon{width:24px;height:24px;border-radius:50%;background:#10b98126;color:#34d399;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.feature-check-icon svg{width:15px;height:15px}.intro-visual-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:40px;position:relative;overflow:hidden}.intro-visual-card:before{content:"";position:absolute;top:0;right:0;width:220px;height:220px;background:radial-gradient(circle,rgba(56,189,248,.15) 0%,transparent 70%);pointer-events:none}.topics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.topic-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:36px 32px;transition:all var(--transition-normal);display:flex;flex-direction:column;height:100%;position:relative}.topic-card:hover{background:var(--bg-card-hover);border-color:#38bdf859;transform:translateY(-4px);box-shadow:0 18px 36px -8px #0000008c,0 0 24px #38bdf814}.topic-icon-wrap{width:56px;height:56px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:22px;background:#38bdf81a;border:1px solid rgba(56,189,248,.2);color:var(--accent-cyan)}.topic-title{font-size:1.35rem;font-weight:700;margin-bottom:14px;letter-spacing:-.01em}.topic-desc{font-size:1rem;color:var(--text-secondary);line-height:1.65;margin-bottom:24px;flex-grow:1}.topic-tags{display:flex;flex-wrap:wrap;gap:8px;padding-top:18px;border-top:1px solid rgba(255,255,255,.06)}.topic-tag-pill{font-size:.78rem;padding:4px 10px;background:#ffffff0a;border-radius:var(--radius-sm);color:var(--text-muted);font-family:var(--font-mono)}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;position:relative}.step-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:40px 34px;position:relative}.step-number{font-family:var(--font-mono);font-size:2.8rem;font-weight:800;color:#38bdf840;line-height:1;margin-bottom:18px}.step-title{font-size:1.35rem;font-weight:700;margin-bottom:14px}.step-desc{color:var(--text-secondary);font-size:1rem;line-height:1.65}.content-banner{background:linear-gradient(135deg,#0d1527f2,#131e38a6);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:60px 56px;display:grid;grid-template-columns:1.25fr .85fr;gap:56px;align-items:center}.content-banner-text h3{font-size:2.1rem;font-weight:800;margin-bottom:18px;line-height:1.25}.content-banner-text p{color:var(--text-secondary);font-size:1.05rem;line-height:1.68;margin-bottom:26px}.format-badges{display:flex;flex-wrap:wrap;gap:12px}.format-badge{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;background:#ffffff0d;border:1px solid var(--border-subtle);border-radius:var(--radius-md);font-size:.875rem;font-weight:600;color:var(--text-primary)}.format-badge svg{width:17px;height:17px;color:var(--accent-cyan)}.content-mockup-frame{background:#080d1a;border-radius:var(--radius-lg);border:1px solid var(--border-subtle);padding:24px;box-shadow:0 16px 36px #00000073}.about-box{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:56px 48px;width:100%;margin:0 auto;text-align:center}.about-quote{font-size:1.55rem;font-weight:500;line-height:1.6;color:var(--text-primary);margin-bottom:26px;font-style:normal;max-width:1100px;margin-left:auto;margin-right:auto}.about-clarification{color:var(--text-muted);font-size:1.05rem;line-height:1.65;max-width:900px;margin:0 auto}.site-footer{border-top:1px solid var(--border-subtle);padding:70px 0 45px;background:#04070d}.footer-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:50px;flex-wrap:wrap;gap:40px}.footer-brand{max-width:480px}.footer-desc{color:var(--text-muted);font-size:.92rem;margin-top:14px;line-height:1.55}.footer-links-group{display:flex;gap:60px}.footer-col h4{font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.09em;color:var(--text-secondary);margin-bottom:18px}.footer-nav{list-style:none;display:flex;flex-direction:column;gap:12px}.footer-nav a{color:var(--text-muted);text-decoration:none;font-size:.92rem;transition:color var(--transition-fast)}.footer-nav a:hover{color:var(--accent-cyan)}.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:36px;border-top:1px solid rgba(255,255,255,.05);font-size:.875rem;color:var(--text-muted);flex-wrap:wrap;gap:20px}.footer-bottom-links{display:flex;gap:24px}.footer-bottom-links a{color:var(--text-muted);text-decoration:none;transition:color var(--transition-fast)}.footer-bottom-links a:hover{color:var(--text-primary)}.mobile-drawer{display:none;position:fixed;top:76px;left:0;right:0;background:var(--bg-card);border-bottom:1px solid var(--border-subtle);padding:24px;z-index:49;flex-direction:column;gap:16px}.mobile-drawer.open{display:flex}.mobile-drawer .nav-link{font-size:1.1rem;padding:8px 0}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media (max-width: 1200px){.topics-grid{grid-template-columns:repeat(2,1fr)}.content-banner{grid-template-columns:1fr;gap:40px}.diagram-grid{grid-template-columns:1fr}}@media (max-width: 800px){.container{width:94%;padding-left:12px;padding-right:12px}.nav-links,.nav-cta{display:none}.mobile-toggle{display:block}.hero-headline{font-size:2.3rem}.topics-grid,.steps-grid{grid-template-columns:1fr}.intro-grid{grid-template-columns:1fr;gap:36px}.hero-actions{flex-direction:column;width:100%}.hero-actions .btn{width:100%}.footer-top{flex-direction:column;gap:32px}.footer-links-group{flex-direction:column;gap:24px}.content-banner{padding:32px 24px}.about-box{padding:36px 20px}}