:root{--vivid-orange:#FF6B35;--vivid-coral:#FF5252;--vivid-amber:#FFB627;--vivid-teal:#00C9A7;--vivid-blue:#4ECDC4;--vivid-pink:#FF6B9D;--vivid-purple:#A855F7;--vivid-green:#22C55E;--vivid-sky:#38BDF8;--vivid-rose:#FB7185;--bg-light:#FFFBF5;--bg-warm:#FFF5EB;--bg-peach:#FFF0E0;--text-dark:#1A1A2E;--text-mid:#5A5A72;--text-light:#8E8EA0;--card-bg:#FFF;--font-display:'Noto Serif SC','Georgia',serif;--font-body:'Noto Sans SC','Helvetica Neue',sans-serif}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--text-dark);background:var(--bg-light);line-height:1.7;overflow-x:hidden}
::selection{background:var(--vivid-amber);color:#fff}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,251,245,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,107,53,.1);transition:box-shadow .3s}
.nav.scrolled{box-shadow:0 2px 24px rgba(26,26,46,.08)}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:14px 24px}
.nav-logo{font-family:var(--font-display);font-size:1.3rem;font-weight:700;color:var(--vivid-orange);letter-spacing:.02em;display:flex;align-items:center;gap:8px}
.nav-logo-icon{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--vivid-orange),var(--vivid-coral));display:flex;align-items:center;justify-content:center}
.nav-logo-icon svg{width:18px;height:18px;fill:#fff}
.nav-logo span{color:var(--vivid-amber)}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{text-decoration:none;color:var(--text-mid);font-size:.9rem;font-weight:500;transition:color .2s;position:relative}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--vivid-orange);transition:width .3s}
.nav-links a:hover{color:var(--vivid-orange)}
.nav-links a:hover::after{width:100%}
.mobile-toggle{display:none;background:none;border:none;cursor:pointer;width:28px;height:20px;position:relative}
.mobile-toggle span{display:block;width:100%;height:2.5px;background:var(--text-dark);border-radius:2px;position:absolute;left:0;transition:all .3s}
.mobile-toggle span:nth-child(1){top:0}
.mobile-toggle span:nth-child(2){top:9px}
.mobile-toggle span:nth-child(3){bottom:0}
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;padding:120px 24px 80px}
.hero-bg{position:absolute;inset:0;z-index:0;background:linear-gradient(170deg,#FFFBF5 0%,#FFF5EB 40%,#FFF0E0 100%)}
.hero-orb{position:absolute;border-radius:50%;z-index:1;filter:blur(60px);will-change:transform}
.hero-orb:nth-child(2){width:500px;height:500px;top:-10%;left:-8%;background:radial-gradient(circle,rgba(255,107,53,.2),rgba(255,107,53,.05) 60%,transparent 70%);animation:orbDrift1 14s ease-in-out infinite}
.hero-orb:nth-child(3){width:400px;height:400px;top:30%;right:-5%;background:radial-gradient(circle,rgba(255,182,39,.18),rgba(255,182,39,.04) 60%,transparent 70%);animation:orbDrift2 18s ease-in-out infinite}
.hero-orb:nth-child(4){width:350px;height:350px;bottom:-5%;left:20%;background:radial-gradient(circle,rgba(0,201,167,.15),rgba(0,201,167,.03) 60%,transparent 70%);animation:orbDrift3 16s ease-in-out infinite}
.hero-orb:nth-child(5){width:280px;height:280px;top:5%;right:20%;background:radial-gradient(circle,rgba(78,205,196,.12),rgba(78,205,196,.02) 60%,transparent 70%);animation:orbDrift4 12s ease-in-out infinite}
.hero-orb:nth-child(6){width:200px;height:200px;bottom:20%;right:10%;background:radial-gradient(circle,rgba(168,85,247,.1),rgba(168,85,247,.02) 60%,transparent 70%);animation:orbDrift5 20s ease-in-out infinite}
@keyframes orbDrift1{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(60px,40px) scale(1.1)}50%{transform:translate(30px,80px) scale(.95)}75%{transform:translate(-20px,30px) scale(1.05)}}
@keyframes orbDrift2{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(-50px,30px) scale(1.08)}50%{transform:translate(-30px,-40px) scale(.92)}75%{transform:translate(20px,-20px) scale(1.04)}}
@keyframes orbDrift3{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(40px,-50px) scale(1.12)}66%{transform:translate(-30px,-20px) scale(.9)}}
@keyframes orbDrift4{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-40px,60px) scale(1.15)}}
@keyframes orbDrift5{0%,100%{transform:translate(0,0) scale(1)}30%{transform:translate(50px,-30px) scale(1.1)}70%{transform:translate(-20px,40px) scale(.95)}}
.hero-particles{position:absolute;inset:0;z-index:1;pointer-events:none}
.particle{position:absolute;border-radius:50%;opacity:0;animation:particleFloat linear infinite}
@keyframes particleFloat{0%{opacity:0;transform:translateY(0) scale(0)}10%{opacity:1}90%{opacity:1}100%{opacity:0;transform:translateY(-100vh) scale(1)}}
.hero-content{position:relative;z-index:2;max-width:780px;text-align:center}
.hero-badge{display:inline-block;padding:6px 18px;border-radius:50px;background:rgba(255,107,53,.1);color:var(--vivid-orange);font-size:.82rem;font-weight:600;margin-bottom:24px;animation:fadeUp .8s ease both}
.hero-title{font-family:var(--font-display);font-size:clamp(2.2rem,5vw,3.6rem);font-weight:900;line-height:1.2;color:var(--text-dark);margin-bottom:20px;animation:fadeUp .8s .15s ease both}
.hero-title em{font-style:normal;background:linear-gradient(135deg,var(--vivid-orange),var(--vivid-coral));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.05rem;color:var(--text-mid);max-width:540px;margin:0 auto 36px;animation:fadeUp .8s .3s ease both}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:44px;animation:fadeUp .8s .38s ease both}
.hero-tag{padding:6px 16px;border-radius:50px;font-size:.82rem;font-weight:600;transition:all .3s;cursor:default;border:1.5px solid transparent}
.hero-tag:hover{transform:translateY(-2px) scale(1.05)}
.hero-tag.tag-e{background:rgba(255,107,53,.1);color:var(--vivid-orange);border-color:rgba(255,107,53,.2)}
.hero-tag.tag-i{background:rgba(78,205,196,.1);color:#2BA89C;border-color:rgba(78,205,196,.2)}
.hero-tag.tag-s{background:rgba(255,182,39,.1);color:#D49A1E;border-color:rgba(255,182,39,.2)}
.hero-tag.tag-n{background:rgba(168,85,247,.1);color:var(--vivid-purple);border-color:rgba(168,85,247,.2)}
.hero-tag.tag-t{background:rgba(56,189,248,.1);color:#0EA5E9;border-color:rgba(56,189,248,.2)}
.hero-tag.tag-f{background:rgba(255,107,157,.1);color:var(--vivid-pink);border-color:rgba(255,107,157,.2)}
.hero-tag.tag-j{background:rgba(34,197,94,.1);color:#16A34A;border-color:rgba(34,197,94,.2)}
.hero-tag.tag-p{background:rgba(251,113,133,.1);color:var(--vivid-rose);border-color:rgba(251,113,133,.2)}
.test-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;animation:fadeUp .8s .45s ease both}
.test-card{background:#fff;border-radius:20px;padding:32px 24px;text-align:center;border:1px solid rgba(255,107,53,.1);transition:all .4s cubic-bezier(.23,1,.32,1);cursor:pointer;position:relative;overflow:hidden}
.test-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;transition:height .3s}
.test-card:nth-child(1)::before{background:linear-gradient(90deg,var(--vivid-orange),var(--vivid-coral))}
.test-card:nth-child(2)::before{background:linear-gradient(90deg,var(--vivid-amber),var(--vivid-orange))}
.test-card:nth-child(3)::before{background:linear-gradient(90deg,var(--vivid-teal),var(--vivid-blue))}
.test-card:hover{transform:translateY(-6px);box-shadow:0 16px 48px rgba(255,107,53,.12)}
.test-card:hover::before{height:6px}
.test-card-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.5rem}
.test-card:nth-child(1) .test-card-icon{background:rgba(255,107,53,.1)}
.test-card:nth-child(2) .test-card-icon{background:rgba(255,182,39,.1)}
.test-card:nth-child(3) .test-card-icon{background:rgba(0,201,167,.1)}
.test-card-title{font-family:var(--font-display);font-size:1.15rem;font-weight:700;margin-bottom:8px}
.test-card-desc{font-size:.85rem;color:var(--text-mid);margin-bottom:16px;line-height:1.6}
.test-card-meta{font-size:.78rem;color:var(--text-light);margin-bottom:18px}
.test-card-btn{display:inline-block;padding:10px 28px;border-radius:50px;font-size:.88rem;font-weight:600;text-decoration:none;transition:all .3s}
.test-card:nth-child(1) .test-card-btn{background:var(--vivid-orange);color:#fff}
.test-card:nth-child(2) .test-card-btn{background:var(--vivid-amber);color:#fff}
.test-card:nth-child(3) .test-card-btn{background:var(--vivid-teal);color:#fff}
.test-card-btn:hover{transform:scale(1.05);filter:brightness(1.08)}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.section{padding:100px 24px}
.section-inner{max-width:1200px;margin:0 auto}
.section-label{display:inline-block;padding:5px 16px;border-radius:50px;font-size:.78rem;font-weight:600;margin-bottom:12px}
.section-title{font-family:var(--font-display);font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:900;line-height:1.25;margin-bottom:16px}
.section-desc{font-size:1rem;color:var(--text-mid);max-width:600px;line-height:1.8;margin-bottom:48px}
.part2{background:#fff}
.part2 .section-label{background:rgba(255,107,53,.1);color:var(--vivid-orange)}
.part2 .section-desc{max-width:680px}
.types-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.type-card{border-radius:16px;padding:20px 16px;border:1.5px solid transparent;transition:all .35s cubic-bezier(.23,1,.32,1);position:relative;overflow:hidden;cursor:default}
.type-card:hover{transform:translateY(-4px);box-shadow:0 10px 32px rgba(26,26,46,.08)}
.type-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.type-code{font-family:var(--font-display);font-size:1.2rem;font-weight:900}
.type-percent{font-size:.72rem;padding:2px 8px;border-radius:50px;font-weight:600}
.type-name{font-size:.88rem;font-weight:600;margin-bottom:8px}
.type-desc{font-size:.8rem;line-height:1.6}
.type-analyst{--tc:var(--vivid-coral);--tc-bg:#FFF5F5;--tc-light:rgba(255,82,82,.12);--tc-border:rgba(255,82,82,.15);background:#FFF5F5;border-color:var(--tc-border)}
.type-diplomat{--tc:var(--vivid-teal);--tc-bg:#F0FDF9;--tc-light:rgba(0,201,167,.12);--tc-border:rgba(0,201,167,.15);background:#F0FDF9;border-color:var(--tc-border)}
.type-sentinel{--tc:var(--vivid-sky);--tc-bg:#F0F9FF;--tc-light:rgba(56,189,248,.12);--tc-border:rgba(56,189,248,.15);background:#F0F9FF;border-color:var(--tc-border)}
.type-explorer{--tc:var(--vivid-amber);--tc-bg:#FFFBEB;--tc-light:rgba(255,182,39,.12);--tc-border:rgba(255,182,39,.15);background:#FFFBEB;border-color:var(--tc-border)}
.type-card .type-code{color:var(--tc)}
.type-card .type-percent{background:var(--tc-light);color:var(--tc)}
.type-card .type-desc{color:var(--text-mid)}
.type-card:hover{border-color:var(--tc)}
.part3{background:var(--bg-warm)}
.part3 .section-label{background:rgba(255,182,39,.15);color:#D49A1E}
.compare-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.compare-card{background:#fff;border-radius:20px;padding:32px 24px;border:2px solid transparent;transition:all .4s cubic-bezier(.23,1,.32,1);position:relative;overflow:hidden}
.compare-card::before{content:'';position:absolute;top:0;left:0;right:0;height:5px}
.compare-card:hover{transform:translateY(-6px);box-shadow:0 16px 48px rgba(26,26,46,.08)}
.compare-card:nth-child(1){border-color:rgba(255,107,53,.15);background:linear-gradient(180deg,#FFF8F3 0%,#fff 30%)}
.compare-card:nth-child(1)::before{background:linear-gradient(90deg,var(--vivid-orange),var(--vivid-coral))}
.compare-card:nth-child(2){border-color:rgba(0,201,167,.15);background:linear-gradient(180deg,#F0FDF9 0%,#fff 30%)}
.compare-card:nth-child(2)::before{background:linear-gradient(90deg,var(--vivid-teal),var(--vivid-blue))}
.compare-card:nth-child(3){border-color:rgba(255,182,39,.15);background:linear-gradient(180deg,#FFFBEB 0%,#fff 30%)}
.compare-card:nth-child(3)::before{background:linear-gradient(90deg,var(--vivid-amber),var(--vivid-orange))}
.compare-card-header{text-align:center;margin-bottom:24px;padding-bottom:20px;border-bottom:1px dashed rgba(26,26,46,.08)}
.compare-card-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:1.6rem}
.compare-card:nth-child(1) .compare-card-icon{background:rgba(255,107,53,.1)}
.compare-card:nth-child(2) .compare-card-icon{background:rgba(0,201,167,.1)}
.compare-card:nth-child(3) .compare-card-icon{background:rgba(255,182,39,.1)}
.compare-card-name{font-family:var(--font-display);font-size:1.2rem;font-weight:900}
.compare-card:nth-child(1) .compare-card-name{color:var(--vivid-orange)}
.compare-card:nth-child(2) .compare-card-name{color:var(--vivid-teal)}
.compare-card:nth-child(3) .compare-card-name{color:#D49A1E}
.compare-card-sub{font-size:.78rem;color:var(--text-light);margin-top:4px}
.compare-rows{display:flex;flex-direction:column;gap:16px}
.compare-row{display:flex;align-items:flex-start;gap:10px}
.compare-row-icon{width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.75rem;flex-shrink:0;margin-top:2px}
.compare-card:nth-child(1) .compare-row-icon{background:rgba(255,107,53,.08);color:var(--vivid-orange)}
.compare-card:nth-child(2) .compare-row-icon{background:rgba(0,201,167,.08);color:var(--vivid-teal)}
.compare-card:nth-child(3) .compare-row-icon{background:rgba(255,182,39,.08);color:#D49A1E}
.compare-row-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:2px}
.compare-card:nth-child(1) .compare-row-label{color:var(--vivid-orange)}
.compare-card:nth-child(2) .compare-row-label{color:var(--vivid-teal)}
.compare-card:nth-child(3) .compare-row-label{color:#D49A1E}
.compare-row-text{font-size:.82rem;color:var(--text-mid);line-height:1.6}
.part4{background:#fff}
.part4 .section-label{background:rgba(168,85,247,.1);color:var(--vivid-purple)}
.apps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.app-card{border-radius:20px;padding:28px 24px;position:relative;overflow:hidden;transition:all .35s;border:2px solid transparent}
.app-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(26,26,46,.06)}
.app-card:nth-child(1){background:linear-gradient(135deg,#FFF5F3,#FFF0E8);border-color:rgba(255,107,53,.12)}
.app-card:nth-child(2){background:linear-gradient(135deg,#F0FDF9,#E8FAF5);border-color:rgba(0,201,167,.12)}
.app-card:nth-child(3){background:linear-gradient(135deg,#FFF5F7,#FFEEF2);border-color:rgba(255,107,157,.12)}
.app-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.app-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}
.app-card:nth-child(1) .app-icon{background:rgba(255,107,53,.12)}
.app-card:nth-child(2) .app-icon{background:rgba(0,201,167,.12)}
.app-card:nth-child(3) .app-icon{background:rgba(255,107,157,.12)}
.app-title{font-family:var(--font-display);font-size:1.05rem;font-weight:700}
.app-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:8px}
.app-list li{font-size:.84rem;color:var(--text-mid);line-height:1.6;padding-left:18px;position:relative}
.app-list li::before{content:'';position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%}
.app-card:nth-child(1) .app-list li::before{background:var(--vivid-orange)}
.app-card:nth-child(2) .app-list li::before{background:var(--vivid-teal)}
.app-card:nth-child(3) .app-list li::before{background:var(--vivid-pink)}
.part5{background:var(--bg-warm)}
.part5 .section-label{background:rgba(0,201,167,.1);color:var(--vivid-teal)}
.groups-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.group-card{background:#fff;border-radius:20px;padding:28px 24px;border:2px solid transparent;transition:all .35s;text-align:center}
.group-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(26,26,46,.06)}
.group-card:nth-child(1){border-color:rgba(255,107,53,.12)}
.group-card:nth-child(2){border-color:rgba(255,182,39,.12)}
.group-card:nth-child(3){border-color:rgba(56,189,248,.12)}
.group-icon{width:52px;height:52px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin:0 auto 16px}
.group-card:nth-child(1) .group-icon{background:rgba(255,107,53,.1)}
.group-card:nth-child(2) .group-icon{background:rgba(255,182,39,.1)}
.group-card:nth-child(3) .group-icon{background:rgba(56,189,248,.1)}
.group-title{font-family:var(--font-display);font-size:1.05rem;font-weight:700;margin-bottom:8px}
.group-text{font-size:.84rem;color:var(--text-mid);line-height:1.7}
.part6{background:#fff}
.part6 .section-label{background:rgba(168,85,247,.1);color:var(--vivid-purple)}
.part6 .section-inner{text-align:center}
.part6 .section-desc{margin-left:auto;margin-right:auto}
.faq-list{max-width:720px;margin:0 auto}
.faq-item{background:var(--bg-warm);border-radius:16px;margin-bottom:12px;overflow:hidden;border:1.5px solid transparent;transition:all .3s}
.faq-item:hover{border-color:rgba(168,85,247,.15)}
.faq-q{padding:18px 22px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;font-weight:600;font-size:.92rem;user-select:none;text-align:left}
.faq-q:hover{color:var(--vivid-purple)}
.faq-arrow{width:22px;height:22px;display:flex;align-items:center;justify-content:center;transition:transform .3s;flex-shrink:0;margin-left:12px;color:var(--text-light);font-size:.7rem}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--vivid-purple)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.23,1,.32,1),padding .3s;padding:0 22px}
.faq-item.open .faq-a{max-height:300px;padding:0 22px 18px}
.faq-a p{font-size:.85rem;color:var(--text-mid);line-height:1.8;text-align:left}
.cta-section{padding:80px 24px;background:linear-gradient(135deg,#1A1A2E 0%,#2D1B4E 50%,#1A1A2E 100%);position:relative;overflow:hidden;text-align:center}
.cta-section::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%,rgba(255,107,53,.12) 0%,transparent 50%),radial-gradient(ellipse at 70% 50%,rgba(0,201,167,.08) 0%,transparent 50%)}
.cta-inner{position:relative;z-index:1;max-width:640px;margin:0 auto}
.cta-title{font-family:var(--font-display);font-size:clamp(1.6rem,3vw,2.2rem);font-weight:900;color:#fff;margin-bottom:12px}
.cta-title em{font-style:normal;background:linear-gradient(135deg,var(--vivid-amber),var(--vivid-orange));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.cta-desc{font-size:.95rem;color:rgba(255,255,255,.55);margin-bottom:36px;line-height:1.8}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-size:.92rem;font-weight:600;text-decoration:none;transition:all .3s}
.cta-btn-primary{background:linear-gradient(135deg,var(--vivid-amber),#FF8C42);color:#fff;box-shadow:0 6px 24px rgba(255,182,39,.3)}
.cta-btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(255,182,39,.4)}
.cta-btn-secondary{background:linear-gradient(135deg,#38BDF8,#818CF8);color:#fff;box-shadow:0 6px 24px rgba(56,189,248,.2)}
.cta-btn-secondary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(56,189,248,.3)}
.footer{background:var(--text-dark);color:rgba(255,255,255,.7);padding:56px 24px 36px;text-align:center}
.footer-logo{font-family:var(--font-display);font-size:1.4rem;font-weight:700;color:var(--vivid-amber);margin-bottom:8px;display:flex;align-items:center;justify-content:center;gap:8px}
.footer-logo-icon{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--vivid-orange),var(--vivid-coral));display:flex;align-items:center;justify-content:center}
.footer-logo-icon svg{width:16px;height:16px;fill:#fff}
.footer-sub{font-size:.95rem;color:rgba(255,255,255,.5);margin-bottom:20px;font-weight:500}
.footer-desc{font-size:.82rem;line-height:1.8;max-width:440px;margin:0 auto 28px;color:rgba(255,255,255,.45)}
.footer-divider{width:60px;height:1px;background:rgba(255,255,255,.12);margin:0 auto 20px}
.footer-copy{font-size:.75rem;color:rgba(255,255,255,.3)}
.float-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:90;background:rgba(255,251,245,.96);backdrop-filter:blur(16px);border-top:1px solid rgba(255,107,53,.1);padding:12px 16px;justify-content:center;gap:12px;box-shadow:0 -4px 20px rgba(26,26,46,.06)}
.float-bar-btn{flex:1;max-width:200px;display:flex;align-items:center;justify-content:center;gap:6px;padding:12px 16px;border-radius:50px;font-size:.85rem;font-weight:600;text-decoration:none;transition:all .3s;text-align:center}
.float-bar-btn-full{background:linear-gradient(135deg,var(--vivid-amber),#FF8C42);color:#fff;box-shadow:0 4px 16px rgba(255,182,39,.25)}
.float-bar-btn-adv{background:linear-gradient(135deg,#38BDF8,#818CF8);color:#fff;box-shadow:0 4px 16px rgba(56,189,248,.2)}
.float-bar-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.back-top{position:fixed;right:24px;bottom:32px;z-index:90;width:48px;height:48px;border-radius:50%;background:#fff;border:2px solid rgba(255,107,53,.2);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s;opacity:0;transform:translateY(12px);pointer-events:none;box-shadow:0 4px 16px rgba(26,26,46,.08)}
.back-top.show{opacity:1;transform:translateY(0);pointer-events:auto}
.back-top:hover{border-color:var(--vivid-orange);box-shadow:0 4px 20px rgba(255,107,53,.15);transform:translateY(-2px)}
.back-top svg{width:20px;height:20px;stroke:var(--vivid-orange);fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:1024px){.types-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.nav-links{display:none}.mobile-toggle{display:block}.test-cards{grid-template-columns:1fr;max-width:400px;margin:0 auto}.types-grid{grid-template-columns:repeat(2,1fr)}.compare-cards,.apps-grid,.groups-grid{grid-template-columns:1fr}.hero{padding:100px 20px 60px}.section{padding:64px 20px}.hero-tags{gap:8px}.back-top{right:16px;bottom:90px;width:42px;height:42px}.float-bar{display:flex}body{padding-bottom:72px}}
@media(max-width:480px){.types-grid{grid-template-columns:repeat(2,1fr);gap:10px}.type-card{padding:14px 12px}.type-code{font-size:1rem}.hero-title{font-size:1.9rem}.cta-btns{flex-direction:column;align-items:center}}
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}