@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Lora:ital,wght@0,400;0,600;1,400;1,600&display=swap";:root{--bg-deep: #0c0e1a;--bg-mid: #121528;--bg-surface: #1a1e35;--bg-card: rgba(26, 30, 53, .7);--bg-glass: rgba(255, 255, 255, .04);--bg-glass-hover:rgba(255, 255, 255, .08);--accent-gold: #f5c842;--accent-amber: #f59e0b;--accent-coral: #ff6b6b;--accent-teal: #2dd4bf;--accent-purple: #a78bfa;--accent-blue: #60a5fa;--text-primary: #f0eee8;--text-secondary: #9ca3c8;--text-muted: #5a6080;--text-highlight: #f5c842;--border-subtle: rgba(255, 255, 255, .06);--border-medium: rgba(255, 255, 255, .12);--border-gold: rgba(245, 200, 66, .3);--grad-bg: radial-gradient(ellipse at 20% 50%, rgba(100, 80, 200, .12) 0%, transparent 60%), radial-gradient(ellipse at 80% 20%, rgba(245, 200, 66, .06) 0%, transparent 50%), #0c0e1a;--grad-gold: linear-gradient(135deg, #f5c842, #f59e0b);--grad-story: linear-gradient(180deg, rgba(12,14,26,0) 0%, rgba(12,14,26,.9) 100%);--grad-card: linear-gradient(135deg, rgba(255,255,255,.06) 0%, rgba(255,255,255,.02) 100%);--shadow-sm: 0 2px 12px rgba(0,0,0,.3);--shadow-md: 0 8px 32px rgba(0,0,0,.4);--shadow-lg: 0 20px 60px rgba(0,0,0,.5);--shadow-gold: 0 0 30px rgba(245, 200, 66, .2);--shadow-glow: 0 0 60px rgba(100, 80, 200, .15);--font-ui: "Outfit", sans-serif;--font-story: "Lora", serif;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-xl: 28px;--radius-full: 999px;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--dur-fast: .15s;--dur-mid: .3s;--dur-slow: .5s}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-ui);background:var(--grad-bg);background-attachment:fixed;color:var(--text-primary);min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#fff3}h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;line-height:1.1;letter-spacing:-.02em}h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;line-height:1.2}h3{font-size:1.25rem;font-weight:600;line-height:1.3}h4{font-size:1rem;font-weight:600}p{line-height:1.7;color:var(--text-secondary)}.story-text{font-family:var(--font-story);font-size:1.125rem;line-height:1.9;color:var(--text-primary)}.screen{display:flex;flex-direction:column;min-height:100vh;animation:screenIn var(--dur-slow) var(--ease-out)}@keyframes 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var(--dur-fast)}.btn:hover:after{background:#ffffff0d}.btn:active{transform:scale(.97)}.account-password-label{display:flex;flex-direction:column;gap:6px;color:var(--text-secondary);font-size:.9rem}.account-password-input{width:100%;padding:11px 12px;border:1px solid var(--border-medium);border-radius:var(--radius-sm);color:var(--text-primary);background:var(--bg-glass);font:inherit}.account-password-input:focus{outline:2px solid rgba(245,200,66,.55);outline-offset:2px}.chapter-illustration{margin:0 0 22px;overflow:hidden;border:1px solid rgba(245,200,66,.28);border-radius:var(--radius-lg);background:#0a1427b8}.chapter-illustration img{display:block;width:100%;height:auto}.chapter-illustration figcaption{padding:8px 12px;color:var(--text-muted);font-size:.72rem;letter-spacing:.06em}.btn-primary{background:var(--grad-gold);color:#1a1200;box-shadow:0 4px 20px #f5c84259}.btn-primary:hover{box-shadow:0 6px 28px #f5c84280;transform:translateY(-1px)}.btn-secondary{background:var(--bg-glass);color:var(--text-primary);border:1px solid var(--border-medium)}.btn-secondary:hover{background:var(--bg-glass-hover);border-color:#fff3}.btn-ghost{background:transparent;color:var(--text-secondary);padding:10px 16px}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-glass)}.btn-lg{padding:16px 36px;font-size:1.05rem}.btn-sm{padding:8px 16px;font-size:.85rem}.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:var(--radius-full);font-size:.78rem;font-weight:600;letter-spacing:.03em}.badge-gold{background:#f5c8421f;color:var(--accent-gold);border:1px solid rgba(245,200,66,.2)}.badge-teal{background:#2dd4bf1a;color:var(--accent-teal);border:1px solid rgba(45,212,191,.2)}.badge-purple{background:#a78bfa1a;color:var(--accent-purple);border:1px solid rgba(167,139,250,.2)}.badge-coral{background:#ff6b6b1a;color:var(--accent-coral);border:1px solid 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var(--border-medium);font-size:.8rem;font-weight:700;color:var(--text-muted);flex-shrink:0;transition:all var(--dur-mid)}.choice-card:hover .choice-letter{background:#f5c84226;border-color:#f5c84266;color:var(--accent-gold)}.particles{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden;z-index:0}.particle{position:absolute;width:2px;height:2px;background:var(--accent-gold);border-radius:50%;opacity:0;animation:float linear infinite}@keyframes float{0%{opacity:0;transform:translateY(0) scale(0)}10%{opacity:.4}90%{opacity:.1}to{opacity:0;transform:translateY(-100vh) scale(1.5)}}.ambient{position:fixed;border-radius:50%;filter:blur(80px);pointer-events:none;z-index:0}.ambient-1{width:600px;height:600px;background:#6450c814;top:-200px;left:-200px;animation:ambientDrift 20s ease-in-out infinite alternate}.ambient-2{width:400px;height:400px;background:#f5c8420d;bottom:-100px;right:-100px;animation:ambientDrift 15s ease-in-out infinite alternate-reverse}@keyframes 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translateY(0)}.stat-num{font-size:2rem;font-weight:800;background:var(--grad-gold);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-6{gap:24px}.gap-8{gap:32px}.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}.mb-2{margin-bottom:8px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.w-full{width:100%}.text-center{text-align:center}.text-gold{color:var(--accent-gold)}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.font-story{font-family:var(--font-story)}.relative{position:relative}.z-1{z-index:1}.dk-home{--dk-ink:#15171a;--dk-muted:#656b73;--dk-line:#e3e6ea;--dk-paper:#f7f8fa;--dk-lime:#a9c96b;color:var(--dk-ink);background:var(--dk-paper);font-family:PingFang 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nav{display:flex;align-items:center;gap:28px;font-size:.78rem}.dk-nav a{color:#5d6269;text-decoration:none}.dk-nav nav button{min-height:38px;padding:0 17px;border:0;border-radius:99px;background:#17191b;color:#fff;font:inherit;cursor:pointer}.dk-kicker{font-family:Inter,system-ui,sans-serif;font-size:.68rem;font-weight:750;letter-spacing:.14em;color:#6e747b}.dk-hero-bg{position:absolute;inset:0 0 auto;height:820px;overflow:hidden;pointer-events:none;background:radial-gradient(circle at 77% 35%,rgba(169,201,107,.19),transparent 26%),radial-gradient(circle at 86% 63%,rgba(84,120,232,.13),transparent 25%),#f1f5fa}.dk-hero-bg:after{position:absolute;top:0;right:0;bottom:0;left:0;content:"";opacity:.22;background-image:radial-gradient(#8d98a5 1px,transparent 1px);background-size:22px 22px;-webkit-mask-image:linear-gradient(to bottom,#000,transparent 82%);mask-image:linear-gradient(to bottom,#000,transparent 82%)}.dk-code-rain{position:absolute;top:68px;left:-4%;width:108%;color:#afbac6;font:600 9px/2.2 monospace;letter-spacing:1.1em;word-spacing:3em;opacity:.16;animation:dkDrift 35s linear infinite}.dk-hero{position:relative;z-index:2;display:grid;grid-template-columns:.86fr 1.14fr;align-items:center;gap:58px;min-height:690px;padding:70px 0 100px}.dk-hero-copy h1{margin-top:22px;max-width:630px;font-size:clamp(3.3rem,5.1vw,4.7rem);font-weight:410;line-height:1.04;letter-spacing:-.065em}.dk-hero-copy h1 span{color:#769c44}.dk-hero-copy>p:not(.dk-kicker){max-width:555px;margin-top:28px;color:#5f666e;font-size:1.02rem;line-height:1.75}.dk-actions{display:flex;gap:12px;margin-top:31px}.dk-actions a{display:inline-flex;align-items:center;gap:30px;min-height:46px;padding:0 20px;border-radius:99px;font-size:.82rem;font-weight:650;text-decoration:none}.dk-primary{background:#17191b;color:#fff}.dk-secondary{border:1px solid #d6dae0;color:#2b2e32;background:#ffffffb3}.dk-hero-stack{position:relative;height:500px}.dk-hero-stack>.dk-alphax-window{position:absolute;top:38px;right:0;width:87%;transform:rotate(.4deg);animation:dkFloat 10s ease-in-out infinite}.dk-hero-stack>.dk-curio-window{position:absolute;bottom:25px;left:0;width:47%;transform:rotate(-2deg);animation:dkFloat 12s ease-in-out -3s infinite}.dk-hero-stack>.dk-kevin-system{position:absolute;right:5%;bottom:0;width:36%;animation:dkFloat 13s ease-in-out -7s infinite}.dk-product-window{overflow:hidden;border:1px solid rgba(33,36,41,.11);border-radius:14px;background:#fff;box-shadow:0 2px 5px #1a202c0a,0 28px 65px #38455b21}.dk-window-bar{display:flex;align-items:center;gap:5px;height:30px;padding:0 10px;border-bottom:1px solid #ebecef;background:#fbfbfa;color:#8b9096;font:600 8px Inter,system-ui,sans-serif}.dk-window-bar i{width:6px;height:6px;border-radius:50%;background:#d5d7da}.dk-window-bar i:first-child{background:#e88969}.dk-window-bar i:nth-child(2){background:#e7bd54}.dk-window-bar i:nth-child(3){background:#70b76d}.dk-window-bar span{margin-left:5px}.dk-product-window img{display:block;width:100%;height:auto}.dk-alphax-window.is-compact img{max-height:310px;object-fit:cover;object-position:top left}.dk-curio-window{color:#f2eee7;background:radial-gradient(circle at 80% 15%,rgba(227,184,77,.16),transparent 32%),#101423}.dk-curio-window .dk-window-bar{border-color:#ffffff14;background:#171b2b;color:#9098ad}.dk-curio-ui{padding:32px}.dk-curio-kicker{color:#e3b84d;font-size:.63rem;letter-spacing:.1em}.dk-curio-title{margin-top:11px;font-family:Georgia,serif;font-size:1.55rem}.dk-curio-ui p{margin-top:13px;color:#aeb4c4;font:400 .78rem/1.65 Georgia,serif}.dk-curio-line{display:flex;flex-wrap:wrap;gap:6px;margin-top:19px}.dk-curio-line span{padding:4px 8px;border:1px solid rgba(227,184,77,.25);border-radius:99px;color:#e8ca7b;font-size:.59rem}.dk-curio-choice{display:flex;justify-content:space-between;gap:10px;margin-top:24px;padding:12px;border-left:2px solid #e3b84d;background:#ffffff0a;font-size:.6rem}.dk-curio-choice span{color:#939bad}.dk-kevin-system{position:relative;aspect-ratio:1.17;overflow:hidden;border:1px solid #efdcd7;border-radius:16px;background:#fff4f0;box-shadow:0 20px 55px #5d332e1a}.dk-kevin-grid{position:absolute;top:0;right:0;bottom:0;left:0;opacity:.34;background-image:linear-gradient(#eadbd7 1px,transparent 1px),linear-gradient(90deg,#eadbd7 1px,transparent 1px);background-size:25px 25px}.dk-kevin-core{position:absolute;z-index:3;top:50%;left:50%;display:grid;width:70px;height:70px;place-items:center;border-radius:50%;transform:translate(-50%,-50%);color:#fff;background:#292426;box-shadow:0 0 0 12px #d965571a}.dk-kevin-core b{font:500 2rem Georgia,serif;line-height:1}.dk-kevin-core span{margin-top:-18px;font:700 7px Inter,sans-serif;letter-spacing:.15em;color:#e8aaa1}.dk-kevin-ring{position:absolute;top:50%;left:50%;border:1px solid rgba(143,106,229,.25);border-radius:50%;transform:translate(-50%,-50%)}.dk-ring-one{width:62%;height:62%;animation:dkSpin 18s linear infinite}.dk-ring-two{width:86%;height:86%;border-style:dashed;animation:dkSpin 28s linear reverse infinite}.dk-kevin-node{position:absolute;z-index:2;padding:5px 8px;border:1px solid #eadbd7;border-radius:99px;background:#fffc;color:#7b5a58;font-size:.55rem}.node-1{top:14%;left:40%}.node-2{top:30%;right:8%}.node-3{right:12%;bottom:20%}.node-4{bottom:10%;left:39%}.node-5{bottom:24%;left:8%}.node-6{top:27%;left:7%}.dk-kevin-caption{position:absolute;right:12px;bottom:10px;display:flex;align-items:center;gap:5px;color:#a27b75;font:700 7px Inter,sans-serif;letter-spacing:.09em}.dk-live-dot{width:5px;height:5px;border-radius:50%;background:#d96557;box-shadow:0 0 0 3px #d9655721}.dk-theme-strip{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #dfe4ea;border-bottom:1px solid #dfe4ea;background:#fff6}.dk-theme-strip article{min-height:190px;padding:35px 30px;border-right:1px solid #e1e5ea}.dk-theme-strip article:last-child{border:0}.dk-theme-strip span{font:700 .6rem Inter,sans-serif;letter-spacing:.12em;color:#8b9198}.dk-theme-strip h3{margin-top:24px;font-size:1.5rem;font-weight:500}.dk-theme-strip article:nth-child(1) h3{color:#c59122}.dk-theme-strip article:nth-child(2) h3{color:#5274ce}.dk-theme-strip article:nth-child(3) h3{color:#cf6759}.dk-theme-strip p{max-width:270px;margin-top:10px;color:#747a82;font-size:.79rem;line-height:1.65}.dk-project-intro{display:grid;grid-template-columns:1.1fr .8fr;gap:50px;align-items:end;padding:145px 0 95px}.dk-project-intro .dk-kicker{grid-column:1/-1}.dk-project-intro h2{font-size:clamp(3rem,5vw,4.5rem);font-weight:410;line-height:1.03;letter-spacing:-.06em}.dk-project-intro>p:last-child{max-width:390px;color:#747a82;font-size:1rem;line-height:1.75}.dk-project-section{padding:130px 0}.dk-project-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:85px;align-items:center}.dk-project-layout.is-reversed{grid-template-columns:1.22fr .78fr}.dk-project-meta{display:flex;align-items:center;gap:12px;font:700 .61rem Inter,sans-serif;letter-spacing:.1em;color:#7b8087}.dk-project-meta b{font-size:.72rem;color:#24272a}.dk-project-meta em{display:flex;align-items:center;gap:6px;margin-left:auto;font-style:normal}.dk-project-meta em i{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 0 4px currentColor;opacity:.55}.dk-project-copy h2{margin-top:30px;font-size:clamp(2.45rem,4vw,3.75rem);font-weight:420;line-height:1.08;letter-spacing:-.055em}.dk-project-copy>p:not(.dk-boundary){max-width:535px;margin-top:25px;color:#666d75;font-size:.96rem;line-height:1.78}.dk-tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:26px}.dk-tag-row span{padding:6px 10px;border:1px solid currentColor;border-radius:99px;font-size:.65rem;opacity:.68}.dk-boundary{margin-top:23px;padding-top:18px;border-top:1px solid currentColor;color:#858a90;font-size:.72rem;line-height:1.6}.dk-arrow-link{margin-top:28px;padding:0 0 7px;border:0;border-bottom:1px solid currentColor;background:none;color:inherit;font:650 .8rem inherit;cursor:pointer}.dk-arrow-link b{margin-left:25px}.dk-project-visual{position:relative}.dk-curio-section{background:#fff9e9}.dk-curio-section .dk-project-copy{color:#332a18}.dk-curio-section .dk-project-meta,.dk-curio-section 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var(--dur-fast)}.streak-sim-btn:hover{background:var(--bg-glass-hover);border-color:var(--border-medium);color:var(--text-primary)}.streak-sim-btn.active{background:#f5c84226;border-color:var(--border-gold);color:var(--accent-gold)}.stats-card-mini{background:var(--bg-glass);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:20px}.mini-stat-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0}.mini-stat-row:not(:last-child){border-bottom:1px solid var(--border-subtle)}.mini-stat-label{font-size:.82rem;color:var(--text-secondary)}.mini-stat-val{font-size:.95rem;font-weight:700;color:var(--text-primary)}#reader{flex-direction:column;min-height:100vh}.reader-nav{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border-subtle);background:#0c0e1ad9;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);position:sticky;top:0;z-index:50}.reader-progress-bar{position:absolute;bottom:0;left:0;right:0}.reader-body{flex:1;max-width:680px;width:100%;margin:0 auto;padding:48px 24px 80px}.chapter-badge{margin-bottom:24px}.chapter-title{font-size:1.6rem;font-weight:700;margin-bottom:12px}#story-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:36px}#story-content{margin-bottom:16px}.word-tip-hint{display:flex;align-items:center;gap:6px;font-size:.78rem;color:var(--text-muted);margin-bottom:24px;padding:8px 12px;background:var(--bg-glass);border-radius:var(--radius-full);width:fit-content}.choice-focus-banner{margin:8px 0 20px;padding:16px 18px 15px;border:1px solid rgba(245,200,66,.45);border-left:4px solid var(--accent-gold);border-radius:var(--radius-md);background:linear-gradient(135deg,#f5c84229,#f5c8420a);box-shadow:0 8px 28px #f5c84214}.choice-focus-kicker{display:flex;align-items:center;gap:8px;color:var(--accent-gold);font-size:.82rem;font-weight:800;letter-spacing:.06em}.choice-focus-icon{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:#f5c8422e;border:1px solid rgba(245,200,66,.5);font-size:.95rem}.choice-focus-words{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 8px 34px}.choice-focus-word{padding:4px 10px;border-radius:999px;background:var(--accent-gold);color:#17130a;font-size:1rem;font-weight:800;letter-spacing:.02em}.choice-focus-question{margin-left:34px;color:var(--text-primary);font-size:.96rem;font-weight:700;line-height:1.55}.choice-focus-hint{margin:5px 0 0 34px;color:var(--text-secondary);font-size:.76rem;line-height:1.5}.branch-story-container{background:linear-gradient(135deg,#ff6b6b14,#1a1e35e6 60%);border:1px solid rgba(255,107,107,.2);border-radius:var(--radius-lg);padding:24px;margin-top:24px;font-family:var(--font-story);font-size:1rem;line-height:1.8;animation:screenIn var(--dur-slow) var(--ease-out)}.branch-header{font-family:var(--font-ui);font-size:.78rem;color:var(--accent-coral);font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;display:flex;align-items:center;gap:6px}#vocab-screen{flex-direction:column;min-height:100vh}.vocab-header{padding:24px 24px 0;max-width:680px;margin:0 auto;width:100%}#vocab-list{max-width:680px;margin:24px auto;padding:0 24px 60px;display:flex;flex-direction:column;gap:14px}.vocab-scene-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:20px 24px;transition:all var(--dur-mid)}.vocab-scene-card:hover{border-color:var(--border-gold);transform:translateY(-2px)}.vocab-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.vocab-word-title{font-size:1.3rem;font-weight:800;color:var(--accent-gold)}.vocab-word-phonetic{font-size:.78rem;color:var(--text-muted);margin-left:8px}.vocab-word-meaning{font-size:.92rem;color:var(--text-primary);margin-top:4px}.vocab-quote-box{background:#ffffff05;border-left:2px solid var(--border-gold);padding:10px 14px;font-family:var(--font-story);font-size:.88rem;font-style:italic;color:var(--text-secondary);line-height:1.6;border-radius:0 var(--radius-sm) var(--radius-sm) 0}.vocab-scene-tag{display:inline-flex;align-items:center;gap:4px;font-size:.72rem;color:var(--accent-purple);margin-top:10px;font-weight:600}#parent-screen{flex-direction:column;min-height:100vh}.parent-container{max-width:680px;margin:0 auto;padding:24px 24px 60px;width:100%}.parent-report-card{background:linear-gradient(135deg,rgba(45,212,191,.04) 0%,var(--bg-card) 100%);border:1px solid rgba(45,212,191,.2);border-radius:var(--radius-xl);padding:28px;margin-bottom:24px}.parent-title-group{text-align:center;margin-bottom:28px}.parent-title-group h2{font-size:1.4rem;color:var(--text-primary)}.parent-title-group p{font-size:.82rem;color:var(--text-muted);margin-top:4px}.report-stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:28px}.report-stat-item{background:var(--bg-glass);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:16px 8px;text-align:center}.report-stat-num{font-size:1.6rem;font-weight:800;color:var(--accent-teal)}.report-stat-label{font-size:.72rem;color:var(--text-muted);margin-top:6px;line-height:1.3}.report-card-list{display:flex;flex-direction:column;gap:12px}.report-detail-row{display:flex;justify-content:space-between;padding:10px 0;font-size:.88rem}.report-detail-row:not(:last-child){border-bottom:1px solid var(--border-subtle)}.sharing-cta-box{background:#6450c814;border:1px dashed rgba(167,139,250,.3);border-radius:var(--radius-lg);padding:20px;text-align:center;margin-top:24px}@media (max-width: 480px){.report-stat-grid{grid-template-columns:1fr}}