:root{--color-primary: #6366f1;--color-primary-dark: #4f46e5;--color-secondary: #8b5cf6;--color-accent: #ec4899;--color-success: #10b981;--color-warning: #f59e0b;--color-bg: #0f172a;--color-bg-secondary: #1e293b;--color-bg-card: #1e293b;--color-bg-card-hover: #334155;--color-text: #f1f5f9;--color-text-secondary: #cbd5e1;--color-text-muted: #94a3b8;--color-border: #334155;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-base: 16px;--font-size-sm: 14px;--font-size-lg: 18px;--font-size-xl: 24px;--font-size-2xl: 32px;--font-size-3xl: 48px;--line-height-base: 1.6;--line-height-tight: 1.2;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: 1rem;--radius-xl: 1.5rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);--shadow-glow: 0 0 20px rgba(99, 102, 241, .3);--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .35s ease;--z-base: 1;--z-dropdown: 10;--z-sticky: 100;--z-modal: 1000}*{margin:0;padding:0;box-sizing:border-box}html{font-size:var(--font-size-base);scroll-behavior:smooth}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-base);color:var(--color-text);background:linear-gradient(135deg,#0f172a,#1e293b);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{min-height:100vh;display:flex;flex-direction:column}.page-header{text-align:center;padding:var(--spacing-2xl) var(--spacing-md);background:linear-gradient(180deg,rgba(99,102,241,.1) 0%,transparent 100%);animation:fadeInDown .8s ease}.header-content{max-width:800px;margin:0 auto}.page-title{font-size:var(--font-size-3xl);font-weight:800;line-height:var(--line-height-tight);margin-bottom:var(--spacing-md);background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.page-description{font-size:var(--font-size-lg);color:var(--color-text-secondary);max-width:600px;margin:0 auto}.tencent-banner{display:block;max-width:970px;margin:0 auto var(--spacing-xl);padding:0 var(--spacing-md);transition:transform var(--transition-base),opacity var(--transition-base)}.tencent-banner:hover{transform:translateY(-4px);opacity:.9}.tencent-banner img{width:100%;height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);transition:box-shadow var(--transition-base)}.tencent-banner:hover img{box-shadow:var(--shadow-xl)}.models-container{flex:1;padding:var(--spacing-xl) var(--spacing-md);max-width:1400px;margin:0 auto;width:100%}.models-section{margin-bottom:var(--spacing-2xl)}.section-title{font-size:var(--font-size-2xl);font-weight:700;margin-bottom:var(--spacing-lg);color:var(--color-text);display:flex;align-items:center;gap:var(--spacing-sm)}.section-title .subtitle{font-size:var(--font-size-base);font-weight:400;color:var(--color-text-secondary);margin-left:var(--spacing-sm)}.featured-section{background:linear-gradient(135deg,#6366f10d,#8b5cf60d);border:2px solid rgba(99,102,241,.2);border-radius:var(--radius-xl);padding:var(--spacing-xl);position:relative;overflow:hidden}.featured-section:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary),var(--color-accent))}.featured-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--spacing-lg)}.models-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.model-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-lg);transition:all var(--transition-base);opacity:0;transform:translateY(30px);animation:fadeInUp .6s ease forwards;position:relative;overflow:hidden}.model-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));transform:scaleX(0);transition:transform var(--transition-base)}.model-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl),var(--shadow-glow);border-color:var(--color-primary);background:var(--color-bg-card-hover)}.model-card:hover:before{transform:scaleX(1)}.model-card-header{display:flex;align-items:center;gap:var(--spacing-md);margin-bottom:var(--spacing-md);position:relative}.model-icon{font-size:2rem;width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#6366f11a,#8b5cf61a);border-radius:var(--radius-lg);border:1px solid var(--color-border);overflow:hidden;font-weight:700;color:var(--color-primary)}.model-icon img{width:60px;height:60px;object-fit:contain}.model-info{flex:1}.model-name{font-size:var(--font-size-xl);font-weight:700;margin-bottom:var(--spacing-xs);color:var(--color-text)}.model-provider{font-size:var(--font-size-sm);color:var(--color-text-muted)}.featured-badge{position:absolute;top:0;right:0;background:linear-gradient(135deg,var(--color-accent),var(--color-secondary));color:#fff;padding:.25rem .75rem;border-radius:var(--radius-md);font-size:12px;font-weight:600;box-shadow:var(--shadow-md)}.model-description{color:var(--color-text-secondary);margin-bottom:var(--spacing-md);line-height:1.6}.model-advantages{margin-bottom:var(--spacing-md)}.model-advantages h4{font-size:var(--font-size-base);font-weight:600;margin-bottom:var(--spacing-sm);color:var(--color-primary)}.advantages-list{list-style:none}.advantage-item{padding:var(--spacing-xs) 0;padding-left:var(--spacing-md);position:relative;color:var(--color-text-secondary);font-size:var(--font-size-sm)}.advantage-item:before{content:"✓";position:absolute;left:0;color:var(--color-success);font-weight:700}.model-pricing{background:#6366f10d;border:1px solid rgba(99,102,241,.2);border-radius:var(--radius-md);padding:var(--spacing-md);margin-bottom:var(--spacing-md)}.pricing-type{display:inline-block;padding:.25rem .75rem;border-radius:var(--radius-sm);font-size:12px;font-weight:600;margin-bottom:var(--spacing-xs);text-transform:uppercase}.pricing-type.free{background:var(--color-success);color:#fff}.pricing-type.freemium{background:var(--color-primary);color:#fff}.pricing-type.paid{background:var(--color-warning);color:#fff}.pricing-type.enterprise{background:var(--color-secondary);color:#fff}.pricing-description{color:var(--color-text-secondary);font-size:var(--font-size-sm)}.cta-button{display:flex;align-items:center;justify-content:center;gap:var(--spacing-xs);width:100%;padding:var(--spacing-md);background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:#fff;text-decoration:none;border-radius:var(--radius-md);font-weight:600;transition:all var(--transition-base);border:none;cursor:pointer;font-size:var(--font-size-base)}.cta-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.cta-button:active{transform:translateY(0)}.cta-button .arrow{transition:transform var(--transition-fast)}.cta-button:hover .arrow{transform:translate(4px)}.page-footer{background:var(--color-bg-secondary);border-top:1px solid var(--color-border);padding:var(--spacing-xl) var(--spacing-md);margin-top:auto}.footer-content{max-width:1400px;margin:0 auto;text-align:center}.footer-links{display:flex;justify-content:center;gap:var(--spacing-lg);margin-bottom:var(--spacing-md);flex-wrap:wrap}.footer-links a{color:var(--color-text-secondary);text-decoration:none;transition:color var(--transition-fast)}.footer-links a:hover{color:var(--color-primary)}.copyright{color:var(--color-text-muted);font-size:var(--font-size-sm);margin-bottom:var(--spacing-xs)}.disclaimer{color:var(--color-text-muted);font-size:12px}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.reveal{opacity:1!important;transform:translateY(0)!important}@media(max-width:768px){.page-title{font-size:var(--font-size-2xl)}.page-description{font-size:var(--font-size-base)}.tencent-banner{margin-bottom:var(--spacing-md)}.section-title{font-size:var(--font-size-xl);flex-direction:column;align-items:flex-start;gap:var(--spacing-xs)}.section-title .subtitle{margin-left:0;font-size:var(--font-size-sm)}.featured-section{padding:var(--spacing-md)}.models-grid,.featured-grid{grid-template-columns:1fr;gap:var(--spacing-md)}.model-card{padding:var(--spacing-md)}.model-icon{width:60px;height:60px;font-size:2rem}.cta-button{min-height:44px;min-width:44px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}