:root{--ink:#20211f;--muted:#71716e;--line:#e7e7e3;--accent:#e64d24;--soft:#f6f6f3;--radius:16px;--header:84px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:155px}body{margin:0;font-family:Arial,'Noto Sans KR','Apple SD Gothic Neo','Malgun Gothic',sans-serif;color:var(--ink);background:#fff;font-size:16px;line-height:1.65;word-break:keep-all;overflow-wrap:break-word}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}img{display:block;max-width:100%;height:auto}button:disabled{cursor:default}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{line-height:1.4;letter-spacing:-.045em}h2{font-size:32px;font-weight:800}h3{font-size:21px}p{line-height:1.85}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #a33bd3;outline-offset:5px}[hidden]{display:none!important}.container{width:calc(100% - 96px);max-width:1200px;margin-inline:auto}.icon{width:22px;height:22px;flex-shrink:0;vertical-align:middle}.flip{transform:rotate(180deg)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-100px;left:12px;z-index:200;background:var(--ink);color:#fff;padding:10px 20px}.skip-link:focus{top:10px}.announcement{height:35px;background:#20211f;color:#e8e8e5;text-align:center;font-size:12px;letter-spacing:-.01em;display:flex;align-items:center;justify-content:center;gap:6px}.announcement strong{color:#ffc19f}.announcement>span{font-size:10px;letter-spacing:1.4px;margin-left:20px;opacity:.58}.site-header{position:sticky;top:0;background:rgba(255,255,255,.97);z-index:40;border-bottom:1px solid var(--line)}.header-inner{height:var(--header);display:flex;align-items:center;gap:54px}.brand{display:inline-flex;align-items:center;gap:10px;font-size:23px;font-weight:900;letter-spacing:-1px;white-space:nowrap;line-height:1.3}.brand>span:last-child{display:flex;flex-direction:column}.brand small{font-size:8px;font-weight:700;letter-spacing:2.05px;margin-top:4px}.brand-mark{background:var(--accent);color:#fff;width:41px;height:43px;border-radius:12px 12px 12px 3px;display:flex;align-items:center;justify-content:center;font-size:32px;letter-spacing:-3px;font-family:Arial,sans-serif;font-weight:800;padding-right:3px;padding-bottom:6px}.brand-mark>span{color:#ffcbb5}.desktop-nav{display:flex;gap:30px;font-weight:600;font-size:15px}.desktop-nav a:hover,.footer-links a:hover{color:var(--accent)}.header-contact{margin-left:auto;display:flex;align-items:center;gap:12px;font-size:14px;font-weight:600}.header-contact .icon{width:18px}.hero-section{padding-top:28px}.hero-slides{border-radius:20px;overflow:hidden}.hero-slide{position:relative;min-height:418px;overflow:hidden;background:#f1b089}.hero-image{position:absolute;inset:0}.hero-image img{height:100%;width:100%;object-fit:cover;object-position:70% 49%}.hero-slide.theme-orange .hero-image:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#f1b38c 0%,rgba(240,177,137,.92) 28%,transparent 64%)}.hero-copy{position:relative;padding:52px 48px 62px;max-width:650px}.eyebrow{display:block;font-size:13px;letter-spacing:.01em;font-weight:700;margin-bottom:19px}.hero-copy h1{font-size:43px;line-height:1.35;font-weight:900;letter-spacing:-.058em}.hero-copy p{font-size:15px;margin-top:19px;line-height:1.85;opacity:.8}.hero-link{display:inline-flex;align-items:center;gap:30px;font-weight:700;font-size:14px;margin-top:27px;padding:11px 20px;background:var(--ink);color:#fff;border-radius:7px}.hero-link:hover{background:#000}.hero-edition{position:absolute;right:26px;bottom:21px;font-size:11px;letter-spacing:2px;opacity:.7}.theme-green{--product-accent:#157750;--product-soft:#eff7f2;background:#103c2e;color:#fff}.theme-purple{--product-accent:#7955b5;--product-soft:#f6f2fc;background:#261f3b;color:#fff}.theme-orange{--product-accent:#d44d29;--product-soft:#fdf0e8}.hero-slide.theme-green .hero-image:after,.hero-slide.theme-purple .hero-image:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,36,28,.94),rgba(11,36,28,.75) 35%,transparent 75%)}.hero-slide.theme-purple .hero-image:after{background:linear-gradient(90deg,rgba(31,22,51,.98),rgba(31,22,51,.7) 35%,transparent 75%)}.theme-green .hero-link,.theme-purple .hero-link{background:#fff;color:#20211f}.hero-bottom{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);margin-top:3px}.hero-tabs{display:flex;gap:26px}.hero-tabs button{background:none;border:0;border-bottom:2px solid transparent;color:#8c8c88;padding:20px 0 17px;font-size:14px}.hero-tabs button[aria-pressed=true]{color:var(--ink);border-color:var(--ink);font-weight:700}.slide-controls{display:flex;align-items:center;gap:12px;font-size:13px}.slide-controls>span{margin-right:12px;font-weight:700;letter-spacing:1px}.slide-controls>span span{color:#aaa}.slide-controls button{border:0;background:transparent;padding:6px;display:grid;place-items:center}.slide-controls .icon{width:17px;height:17px}.section{padding-block:76px 0}.section-label{color:var(--accent);font-size:11px;font-weight:800;letter-spacing:1.8px;display:block;margin-bottom:9px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-heading p{color:var(--muted);margin-top:10px;font-size:15px}.section-heading h2{font-size:29px}.product-search{display:flex;align-items:center;gap:10px;background:var(--soft);border:1px solid #eeeeea;border-radius:8px;padding:11px 14px;min-width:265px;color:#878781}.product-search .icon{width:18px;height:18px}.product-search input{width:100%;max-width:220px;border:0;background:transparent;outline:0;font-size:13px;min-width:0;color:var(--ink)}.product-search input:focus-visible{outline:2px solid var(--accent);outline-offset:6px}.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}.product-card{min-width:0}.product-link{display:block}.product-art{aspect-ratio:1.43;position:relative;overflow:hidden;border-radius:12px;background:#edb394}.product-art img{height:100%;width:100%;object-fit:cover;transition:transform .35s ease;object-position:66% center}.product-link:hover .product-art img{transform:scale(1.035)}.art-label{position:absolute;top:24px;left:24px;font-size:8px;font-weight:700;letter-spacing:1.3px;color:#25231f;display:flex;flex-direction:column;max-width:48%;line-height:1.5}.art-label span{font-size:24px;letter-spacing:-1.3px;font-weight:900;line-height:1.35;margin-top:12px}.theme-green .art-label,.theme-purple .art-label{color:white}.art-number{position:absolute;bottom:16px;left:24px;font-size:10px;font-weight:700;color:inherit;letter-spacing:2px}.product-card-copy{padding:20px 2px 0}.product-card h3{font-size:19px;font-weight:800}.product-card p{font-size:14px;color:var(--muted);margin-top:7px;line-height:1.6}.product-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:19px}.product-bottom strong{font-size:16px}.product-bottom>span{border:1px solid #ddd;border-radius:50%;width:31px;height:31px;display:grid;place-items:center}.product-bottom .icon{width:17px;height:17px}.small-note{margin-top:26px;padding:17px 20px;background:var(--soft);font-size:13px;color:#777770;border-radius:8px;display:flex;align-items:center;justify-content:center;gap:8px}.small-note .icon{width:17px;color:#8a8a82}.search-empty{padding:45px;text-align:center;background:var(--soft);border-radius:10px}.lab-banner{position:relative;margin-top:77px;min-height:242px;background:#222521;color:white;border-radius:16px;display:flex;align-items:center;justify-content:space-between;padding:38px 45px;overflow:hidden;gap:40px}.lab-banner .section-label{color:#ff9870;font-size:10px}.lab-banner h2{font-size:33px}.lab-banner p{font-size:14px;color:#c7cac2;position:relative;z-index:1;margin-right:80px;line-height:2}.banner-monogram{position:absolute;right:16px;bottom:-20px;font-size:160px;font-weight:900;letter-spacing:-18px;color:#424b3e;line-height:1;opacity:.55}.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}.note-art{border-radius:12px;height:184px;position:relative;padding:23px 24px;overflow:hidden}.note-art>span:first-child{font-size:9px;letter-spacing:1.5px;font-weight:700;opacity:.6;display:block}.note-art>strong{font-size:26px;line-height:1.45;letter-spacing:-1px;display:block;margin-top:14px;position:relative;z-index:1}.note-decoration{position:absolute;right:15px;bottom:-10px;font-size:120px;font-weight:900;line-height:1;opacity:.13;letter-spacing:-12px}.note-orange{background:#f9ede5;color:#914225}.note-green{background:#edf3ee;color:#365f48}.note-purple{background:#f0edf7;color:#695189}.note-card h3{font-size:18px;line-height:1.6;margin-top:19px}.note-card>p{font-size:14px;color:var(--muted);margin-top:8px}.text-link{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;margin-top:16px}.text-link .icon{width:17px}.note-card:hover h3{color:var(--accent)}.review-section{margin-top:84px;background:#f6f6f3;padding:55px 0}.review-inner{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.review-inner h2{font-size:28px}.review-inner>div>p{font-size:14px;color:var(--muted);margin-top:12px}.review-empty{background:#fff;padding:29px;border:1px solid #ecece6;border-radius:14px;text-align:center}.review-empty>.icon{color:#a3a59a;width:28px;height:28px;margin-bottom:13px}.review-empty h3{font-size:18px}.review-empty p{font-size:14px!important;color:var(--muted);margin-top:8px!important}.notice-section{padding-block:45px 56px;display:grid;grid-template-columns:160px 1fr;align-items:start}.notice-section h2{font-size:21px;grid-row:span 2}.notice-section>a{display:flex;justify-content:space-between;gap:16px;padding:14px 0;font-size:14px;border-bottom:1px solid var(--line)}.notice-section>a>span:last-child{color:#888;font-size:12px;display:flex;align-items:center;gap:10px}.notice-section .icon{width:15px;height:15px}.site-footer{border-top:1px solid var(--line);background:#fafaf8;padding:43px 0 100px}.footer-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.site-footer .brand{font-size:21px}.site-footer .brand-mark{width:36px;height:38px;font-size:28px;background:#363933}.site-footer>.container>p{font-size:14px;color:#686b64}.footer-links{display:flex;gap:22px;font-size:13px;font-weight:600}.footer-description{margin-top:12px;font-size:12px!important;color:#8d8f88!important}.seller-info{font-size:12px;color:#777;margin-top:16px;display:flex;gap:5px 15px;flex-wrap:wrap;max-width:700px}.footer-bottom{border-top:1px solid var(--line);margin-top:28px;padding-top:22px;display:flex;justify-content:space-between;font-size:11px;color:#93958d;letter-spacing:.15px}.floating-nav{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:rgba(255,255,255,.96);border:1px solid #e4e5df;box-shadow:0 5px 30px #25272214;border-radius:16px;display:flex;z-index:45;padding:10px 15px;gap:4px;backdrop-filter:blur(16px)}.floating-nav a{display:flex;align-items:center;gap:7px;padding:6px 15px;border-radius:8px;white-space:nowrap;font-size:12px;font-weight:600;color:#61645b}.floating-nav a:hover{background:#f7eee9;color:var(--accent)}.floating-nav .icon{width:18px;height:18px}.back-top{position:fixed;bottom:25px;right:24px;background:#fff;border:1px solid #deded7;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;z-index:44;box-shadow:0 2px 10px #2221}.back-top .icon{width:19px}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;border:0;border-radius:8px;padding:15px 20px;line-height:1.5;font-size:15px;font-weight:700;transition:background .2s}.primary{background:var(--accent);color:#fff}.primary:hover{background:#c93c17}.pending{background:var(--ink);color:#fff}.pending:hover{background:#393c35}.button.full{width:100%}.button .icon{width:19px;height:19px}dialog{border:0;padding:0;border-radius:19px;width:calc(100% - 36px);max-width:390px;color:var(--ink);box-shadow:0 20px 80px #0002}dialog::backdrop{background:#161b186b;backdrop-filter:blur(3px)}.dialog-inner{position:relative;text-align:center;padding:38px 30px 30px}.dialog-close{position:absolute;top:14px;right:14px;border:0;background:transparent;padding:5px;display:grid;place-items:center}.dialog-close .icon{width:20px;height:20px}.dialog-symbol{width:62px;height:62px;border-radius:50%;background:#fceddf;display:grid;place-items:center;margin:4px auto 22px;color:var(--accent)}.dialog-symbol .icon{width:30px;height:30px}.dialog-inner h2{font-size:25px}.dialog-inner p{font-size:15px;color:var(--muted);margin:16px 0 26px}.dialog-inner .button{width:100%}
/* Product detail */
.product-page{--product-accent:var(--accent);--product-soft:#fcf1e9}.product-page.color-green{--product-accent:#14754e;--product-soft:#eff7f1}.product-page.color-purple{--product-accent:#7550b1;--product-soft:#f5f0fc}.product-hero{position:relative;background:#f1b38c;overflow:hidden;min-height:425px}.product-hero>.hero-image{left:35%}.product-hero .hero-image img{object-position:66% 49%}.product-hero:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#f1b38c 16%,#f1b38c 35%,transparent 78%);pointer-events:none}.product-hero.theme-green{background:#0e3226}.product-hero.theme-green:after{background:linear-gradient(90deg,#0e3226 16%,#0e3226 35%,transparent 85%)}.product-hero.theme-purple{background:#22152f}.product-hero.theme-purple:after{background:linear-gradient(90deg,#22152f 16%,#22152f 35%,transparent 85%)}.product-hero-content{position:relative;z-index:1;padding-block:35px 47px}.breadcrumb{display:flex;gap:10px;align-items:center;font-size:12px;opacity:.65;margin-bottom:33px}.breadcrumb .icon{width:12px;height:12px}.product-hero h1{font-size:43px;max-width:660px;font-weight:900;line-height:1.4}.product-hero .hero-description{font-size:15px;max-width:570px;line-height:1.9;margin-top:19px;opacity:.85}.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:25px;font-size:12px;font-weight:600}.hero-points span{display:flex;gap:6px;align-items:center}.hero-points .icon{width:15px;height:15px}.detail-nav{position:sticky;top:var(--header);z-index:35;background:#fff;border-bottom:1px solid var(--line)}.detail-nav .container{display:flex;gap:34px}.detail-nav a{padding:19px 0 16px;font-size:14px;font-weight:700;border-bottom:3px solid transparent;color:#7a7b75}.detail-nav a.active{border-color:var(--product-accent);color:var(--product-accent)}.detail-background{background:#f7f7f5}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 335px;gap:34px;align-items:start;padding-block:34px 65px}.detail-main{min-width:0}.detail-section{margin-bottom:28px;scroll-margin-top:163px;background:#fff;border:1px solid #e9e9e3;border-radius:12px;padding:38px 32px}.detail-section>h2{font-size:24px;margin-bottom:15px}.detail-section>p{font-size:15px;color:var(--muted)}.draft-notice{background:#f5f5f1;padding:13px 17px;font-size:12px;line-height:1.85;color:#787970;border-radius:7px;margin-bottom:29px}.intro-title{font-size:30px!important;margin-top:10px!important;line-height:1.5}.intro-body{font-size:16px!important;line-height:2!important;margin-top:20px}.intro-visual{margin:30px -32px -38px;position:relative;overflow:hidden;aspect-ratio:1.8;border-radius:0 0 12px 12px}.intro-visual img{width:100%;height:100%;object-fit:cover}.intro-visual .art-label{top:30px;left:30px}.intro-visual .art-label>span{font-size:28px;max-width:230px}.story-panel{padding:48px 36px;background:#242824;border:0;color:#fff}.story-panel .section-label{color:#c0c7b3}.story-panel h2{font-size:30px;line-height:1.55;margin-bottom:24px}.story-panel>p{font-size:16px;color:#bcc2b7;line-height:2}.step-list{margin-top:34px;display:grid;gap:16px}.step{display:grid;grid-template-columns:34px 1fr;gap:15px;border-top:1px solid #ffffff26;padding-top:18px}.step>span{color:#ffa27a;font-size:13px;padding-top:4px;font-weight:700}.step h3{font-size:18px;letter-spacing:-.5px}.step p{font-size:14px;color:#aeb8aa;margin-top:5px}.audience-list{list-style:none;padding:0;margin:25px 0 0;display:grid;gap:13px}.audience-list li{display:flex;align-items:flex-start;gap:11px;font-size:15px;background:var(--product-soft);padding:16px;border-radius:8px}.audience-list .icon{color:var(--product-accent);width:19px;height:19px;margin-top:4px}.section-kicker{font-size:11px;letter-spacing:1.5px;color:var(--product-accent);font-weight:800;display:block;margin-bottom:10px}.curriculum{margin-top:25px}.curriculum details{border:1px solid #e6e7e0;border-radius:9px;margin-top:12px;overflow:hidden}.curriculum summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:20px 18px;font-size:16px;font-weight:700}.curriculum summary::-webkit-details-marker,.faq-list summary::-webkit-details-marker{display:none}.chapter-number{font-size:11px;font-weight:700;color:var(--product-accent);letter-spacing:.5px;flex-shrink:0}.curriculum summary>.icon{margin-left:auto;width:17px;height:17px;flex-shrink:0;transition:transform .2s}.curriculum details[open] summary>.icon{transform:rotate(45deg)}.curriculum ul{padding:4px 24px 19px 66px;margin:0;color:#72756c;font-size:14px;line-height:2.2}.detail-small{font-size:12px!important;margin-top:20px;color:#92938c!important}.delivery-grid{display:grid;grid-template-columns:repeat(2,1fr);margin-top:24px;border:1px solid var(--line);border-radius:8px;overflow:hidden}.delivery-grid>div{padding:21px 18px}.delivery-grid>div+div{border-left:1px solid var(--line)}.delivery-grid span{font-size:12px;color:var(--muted);display:block}.delivery-grid strong{font-size:15px;display:block;margin-top:5px}.faq-list{margin-top:15px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{list-style:none;display:flex;gap:12px;align-items:center;padding:22px 0;font-size:15px;font-weight:700;cursor:pointer}.faq-list summary:before{content:'Q';font-family:Arial,sans-serif;font-size:15px;color:var(--product-accent);margin-right:2px}.faq-list summary .icon{width:17px;height:17px;margin-left:auto}.faq-list details[open] summary .icon{transform:rotate(45deg)}.faq-list details>p{font-size:14px;color:var(--muted);line-height:1.95;padding:0 26px 22px}.product-review{padding:35px 15px;text-align:center;background:#f8f8f5;border-radius:8px;margin-top:25px}.product-review h3{font-size:18px}.product-review p{font-size:14px;color:var(--muted);margin-top:9px}.purchase-sidebar{position:sticky;top:calc(var(--header) + 84px);background:#fff;border:1px solid #e4e5dd;border-radius:12px;padding:26px 25px;box-shadow:0 6px 24px #33360405}.purchase-topline{display:flex;justify-content:space-between;font-size:11px;letter-spacing:1px;color:#999b93}.purchase-topline>span:last-child{letter-spacing:0;color:var(--product-accent);background:var(--product-soft);padding:2px 8px;border-radius:4px}.purchase-sidebar h2{font-size:23px;line-height:1.5;margin:21px 0 9px}.purchase-sidebar>p{font-size:13px;color:var(--muted);line-height:1.8}.price-box{margin:25px 0 20px;padding-bottom:21px;border-bottom:1px solid var(--line)}.price-box span{display:block;font-size:12px;color:#7b7e73;margin-bottom:5px}.price-box strong{font-size:25px;letter-spacing:-1px;font-weight:800}.purchase-details{display:grid;gap:11px;margin:0 0 25px}.purchase-details>div{display:flex;justify-content:space-between;font-size:12px;gap:15px}.purchase-details dt{color:#93948c}.purchase-details dd{margin:0;text-align:right}.purchase-sidebar .button{font-size:14px}.purchase-sidebar .payment-note{text-align:center;font-size:11px;margin-top:12px;color:#a0a197}.purchase-contact{border-top:1px solid var(--line);margin-top:22px;padding-top:18px;text-align:center;font-size:12px;color:#707568}.purchase-contact a{border-bottom:1px solid #a2a59c;padding-bottom:2px}.mobile-purchase{display:none}.related-products{padding-block:60px 70px}.related-products .product-grid{grid-template-columns:repeat(2,minmax(0,1fr));max-width:785px}.related-products .section-heading{align-items:center}.related-products .section-heading>a{font-size:14px;display:flex;align-items:center;gap:10px}.product-page .back-top{bottom:24px}
/* Reading and service pages */
.reading-container{max-width:800px;padding:54px 0 80px}.reading-container>.section-label{margin-top:25px}.reading-container>h1{font-size:38px;margin-top:12px;margin-bottom:17px;line-height:1.5}.reading-lead{font-size:17px;color:var(--muted);margin-bottom:40px}.reading-block{margin-top:32px;padding-top:28px;border-top:1px solid var(--line);scroll-margin-top:110px}.reading-block h2{font-size:24px;margin-bottom:17px}.reading-block h3{font-size:19px;margin:24px 0 12px}.reading-block p,.reading-block li{font-size:16px;color:#61655b;line-height:2}.reading-block p+p{margin-top:17px}.reading-block ul,.reading-block ol{padding-left:23px}.reading-callout{background:var(--soft);border-radius:12px;padding:28px;margin-top:32px}.reading-callout h2{font-size:21px;margin-bottom:10px}.reading-callout p{font-size:15px;color:var(--muted)}.reading-callout .button{margin-top:20px}.contact-value{color:var(--accent)!important;font-weight:700}.article-meta{font-size:12px;color:#999;margin:20px 0 30px}.article-back{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#888}.article-back .icon{width:15px}.error-page{text-align:center;padding:100px 20px}.error-page h1{font-size:32px}.error-page p{margin:20px 0;color:var(--muted)}
@media(min-width:1600px){.hero-slide{min-height:440px}.hero-copy{padding-top:59px}}
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@media(max-width:560px){.hero-tabs{min-width:0;gap:6px}.hero-tabs button{font-size:0;width:23px;flex-shrink:0;padding:20px 0 17px;border:0;display:grid;place-items:center}.hero-tabs button:after{content:'';height:5px;width:5px;border-radius:5px;background:#c4c4bd}.hero-tabs button[aria-pressed=true]:after{width:19px;background:#30332d}.slide-controls{flex-shrink:0;gap:8px}.slide-controls>span{white-space:nowrap;margin-right:6px;font-size:11px}.slide-controls button{min-width:28px;min-height:36px}.hero-bottom{min-height:49px}}
.hero-slide .hero-image{left:35%}
@media(max-width:560px){.hero-slide .hero-image{left:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}