/* roulang page: index */
:root{
      --ink:#171927;
      --muted:#737687;
      --soft:#a4a7b5;
      --line:#e7e8ee;
      --paper:#fbfbfd;
      --white:#fff;
      --violet:#6c4df6;
      --violet-deep:#4d32d4;
      --cyan:#24c7bd;
      --coral:#ff6f61;
      --yellow:#f6c84c;
      --navy:#1b1d36;
      --radius:22px;
      --small-radius:13px;
      --shadow:0 18px 45px rgba(31,29,70,.09);
      --shadow-hover:0 22px 55px rgba(31,29,70,.16);
      --max:1180px;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"Noto Sans SC","DM Sans",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px;overflow-x:hidden}
    img{display:block;width:100%;object-fit:cover}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(108,77,246,.32);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
    .eyebrow:before{content:"";width:22px;height:3px;border-radius:3px;background:var(--cyan)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-head h2{font-size:clamp(25px,3vw,39px);line-height:1.2;letter-spacing:0;font-weight:900}
    .section-head p{max-width:520px;color:var(--muted);font-size:14px}
    .more-link{font-weight:700;font-size:13px;color:var(--violet);white-space:nowrap}
    .more-link span{display:inline-block;margin-left:7px;transition:transform .2s}
    .more-link:hover span{transform:translateX(4px)}
    header{height:76px;display:flex;align-items:center;background:rgba(251,251,253,.9);border-bottom:1px solid rgba(231,232,238,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:900;white-space:nowrap}
    .brand-mark{width:34px;height:34px;background:var(--ink);color:#fff;border-radius:10px;display:grid;place-items:center;font-size:14px;font-weight:900;position:relative;overflow:hidden}
    .brand-mark:after{content:"";position:absolute;width:15px;height:15px;right:-4px;bottom:-4px;border-radius:50%;background:var(--cyan)}
    .brand-mark b{position:relative;z-index:1}
    nav{display:flex;align-items:center;gap:26px}
    nav a{font-size:13px;color:var(--muted);font-weight:600;transition:color .2s}
    nav a:hover,nav a.active{color:var(--ink)}
    .nav-action{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#fff!important;padding:10px 16px;border-radius:11px}
    .nav-action:hover{background:var(--violet)}
    .menu-toggle{display:none;background:none;color:var(--ink);font-size:24px}
    .hero{position:relative;min-height:650px;display:flex;align-items:center;color:#fff;overflow:hidden;background:#17182d}
    .hero-image{position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(17,18,39,.92) 0%,rgba(26,22,53,.77) 44%,rgba(29,26,58,.2) 100%),url("https://images.unsplash.com/photo-1538485399081-7c8977ef3f6b?auto=format&fit=crop&w=1800&q=88");background-size:cover;background-position:center}
    .hero:after{content:"";position:absolute;bottom:-110px;left:-5%;width:110%;height:185px;background:var(--paper);transform:rotate(-3deg)}
    .hero-content{position:relative;z-index:1;width:100%;padding:86px 0 125px}
    .hero-copy{max-width:690px}
    .hero .eyebrow{color:#a8fff1}
    .hero h1{font-size:clamp(37px,5.5vw,74px);line-height:1.12;letter-spacing:0;font-weight:900;margin:21px 0 20px}
    .hero h1 em{font-style:normal;color:#89f5e8}
    .hero-lead{max-width:680px;color:rgba(255,255,255,.82);font-size:16px;line-height:2;margin-bottom:30px}
    .hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 20px;border-radius:12px;font-size:14px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s}
    .btn:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(15,15,40,.2)}
    .btn-primary{background:var(--cyan);color:#102c30}
    .btn-light{background:#fff;color:var(--ink)}
    .btn-dark{background:var(--ink);color:#fff}
    .hero-foot{display:flex;align-items:center;gap:26px;margin-top:42px;color:rgba(255,255,255,.7);font-size:12px}
    .hero-foot strong{display:block;color:#fff;font-size:18px;line-height:1.2}
    main{overflow:hidden}
    section{padding:92px 0}
    .metrics{padding:0 0 74px;margin-top:-5px;position:relative;z-index:2}
    .metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
    .metric{padding:25px 27px;border-right:1px solid var(--line)}
    .metric:last-child{border-right:0}
    .metric strong{display:block;font-size:29px;line-height:1.2}
    .metric span{display:block;margin-top:5px;color:var(--muted);font-size:13px}
    .live-section{padding-top:52px}
    .live-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:30px;align-items:stretch}
    .live-cover{min-height:390px;border-radius:var(--radius);overflow:hidden;position:relative;background:url("https://images.unsplash.com/photo-1492684223066-81342ee5ff30?auto=format&fit=crop&w=1100&q=85") center/cover}
    .live-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(14,16,37,.83),transparent 65%)}
    .live-info{position:absolute;z-index:1;bottom:28px;left:30px;right:30px;color:#fff}
    .live-info h3{font-size:30px;line-height:1.25;margin:10px 0}
    .live-info p{color:rgba(255,255,255,.78);font-size:13px}
    .live-tag{display:inline-block;padding:5px 9px;border-radius:7px;background:var(--coral);font-weight:800;font-size:11px}
    .countdown-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;justify-content:space-between}
    .countdown-panel h3{font-size:25px;line-height:1.35}
    .countdown-panel p{color:var(--muted);font-size:14px;margin-top:10px}
    .countdown{display:flex;gap:9px;margin:25px 0}
    .time-box{background:#f3f2ff;border-radius:13px;padding:13px 10px;min-width:66px;text-align:center}
    .time-box b{display:block;color:var(--violet);font-size:25px;line-height:1.1}
    .time-box small{font-size:11px;color:var(--muted)}
    .collection{background:#f2f1ff}
    .collection-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
    .content-card{background:#fff;border-radius:16px;overflow:hidden;border:1px solid rgba(231,232,238,.9);transition:transform .25s,box-shadow .25s}
    .content-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
    .card-image{height:205px;position:relative;overflow:hidden}
    .card-image img{height:100%;transition:transform .4s}
    .content-card:hover .card-image img{transform:scale(1.05)}
    .badge{position:absolute;top:12px;left:12px;background:var(--ink);color:#fff;border-radius:7px;padding:4px 8px;font-size:10px;font-weight:800}
    .badge.cyan{background:var(--cyan);color:#112e2e}
    .badge.coral{background:var(--coral)}
    .card-body{padding:17px}
    .card-top{display:flex;justify-content:space-between;gap:8px;align-items:center;color:var(--muted);font-size:11px}
    .card-body h3{font-size:17px;line-height:1.4;margin:7px 0 6px}
    .card-body p{font-size:12px;color:var(--muted);line-height:1.7}
    .rating{color:#d49118;font-weight:800;white-space:nowrap}
    .related{background:#fff}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .related-card{display:grid;grid-template-columns:132px 1fr;gap:17px;padding:14px;border:1px solid var(--line);border-radius:15px;transition:box-shadow .2s,transform .2s}
    .related-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
    .related-card img{height:132px;border-radius:11px}
    .related-card h3{font-size:16px;line-height:1.4;margin:8px 0}
    .related-card p{color:var(--muted);font-size:12px;line-height:1.7}
    .news-section{background:var(--navy);color:#fff}
    .news-section .section-head p{color:#adafc0}
    .news-section .eyebrow{color:#92f3e7}
    .news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.15)}
    .news-item{display:grid;grid-template-columns:112px 1fr;gap:16px;padding:18px;background:var(--navy);transition:background .2s}
    .news-item:hover{background:#262943}
    .news-item img{height:90px;border-radius:10px}
    .news-item time{font-size:11px;color:#8d91aa}
    .news-item h3{font-size:15px;line-height:1.5;margin-top:5px}
    .save-section{background:#fff}
    .save-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:65px;align-items:center}
    .save-layout h2{font-size:clamp(27px,3vw,40px);line-height:1.3;margin:17px 0}
    .save-layout>div>p{color:var(--muted);line-height:1.9}
    .save-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .step{padding:23px;background:#f7f7fb;border-radius:16px;border:1px solid var(--line)}
    .step-no{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--violet);color:#fff;font-weight:900;font-size:13px;margin-bottom:14px}
    .step h3{font-size:16px;margin-bottom:5px}
    .step p{color:var(--muted);font-size:12px}
    .topics{background:#f5f5f8}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .topic{min-height:174px;border-radius:18px;padding:23px;color:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:end}
    .topic:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(17,18,39,.75),transparent)}
    .topic>*{position:relative;z-index:1}
    .topic h3{font-size:21px}
    .topic p{font-size:12px;color:rgba(255,255,255,.75);margin-top:4px}
    .topic-kr{background:url("https://images.unsplash.com/photo-1538485399081-7c8977ef3f6b?auto=format&fit=crop&w=700&q=80") center/cover}
    .topic-eu{background:url("https://images.unsplash.com/photo-1499856871958-5b9627545d1a?auto=format&fit=crop&w=700&q=80") center/cover}
    .topic-asia{background:url("https://images.unsplash.com/photo-1536098561742-ca998e48cbcc?auto=format&fit=crop&w=700&q=80") center/cover}
    .topic-jp{background:url("https://images.unsplash.com/photo-1528360983277-13d401cdc186?auto=format&fit=crop&w=700&q=80") center/cover}
    .ranking{background:#fff}
    .ranking-layout{display:grid;grid-template-columns:1fr .86fr;gap:30px}
    .rank-list{border-top:1px solid var(--line)}
    .rank-row{display:grid;grid-template-columns:45px 1fr 115px 62px;gap:15px;align-items:center;padding:14px 4px;border-bottom:1px solid var(--line)}
    .rank-row:hover{background:#faf9ff}
    .rank-number{font-size:22px;font-weight:900;color:#c4c5ce}
    .rank-row:first-child .rank-number{color:var(--coral)}
    .rank-name{font-weight:700;font-size:14px}
    .rank-type{display:inline-block;color:var(--violet);font-size:11px;background:#f0edff;padding:3px 7px;border-radius:5px;margin-left:8px}
    .heat{font-size:12px;color:var(--muted)}
    .score{font-weight:800;color:#d49118;text-align:right}
    .rank-note{background:linear-gradient(135deg,#6c4df6,#3b269e);color:#fff;border-radius:var(--radius);padding:31px;display:flex;flex-direction:column;justify-content:end;min-height:355px}
    .rank-note h3{font-size:27px;line-height:1.35}
    .rank-note p{color:rgba(255,255,255,.76);font-size:13px;margin-top:12px}
    .voices{background:#edfdfa}
    .voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .voice{background:#fff;padding:24px;border-radius:17px;border:1px solid #d8f0ed}
    .voice-head{display:flex;align-items:center;gap:12px;margin-bottom:15px}
    .avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:900;color:#fff;background:var(--coral)}
    .voice:nth-child(2) .avatar{background:var(--violet)}
    .voice:nth-child(3) .avatar{background:#1f9e9a}
    .voice-head strong{display:block;font-size:14px}
    .voice-head small{color:var(--muted);font-size:11px}
    .voice p{font-size:13px;color:#555866;line-height:1.85}
    .assurance{background:#fff}
    .assurance-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .assure{padding:25px;border:1px solid var(--line);border-radius:16px}
    .assure-icon{width:39px;height:39px;border-radius:11px;background:#f0edff;color:var(--violet);display:grid;place-items:center;font-size:19px;margin-bottom:15px}
    .assure h3{font-size:17px;margin-bottom:7px}
    .assure p{font-size:13px;color:var(--muted);line-height:1.8}
    .faq-section{background:#f5f5f8}
    .faq-list{max-width:850px;margin:0 auto;border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:20px 0}
    summary{cursor:pointer;list-style:none;font-size:16px;font-weight:800;display:flex;justify-content:space-between;gap:16px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:var(--violet);font-size:23px;font-weight:400;line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:13px;line-height:1.9;padding:12px 35px 0 0}
    .contact{padding:72px 0;background:var(--violet);color:#fff}
    .contact-inner{display:flex;justify-content:space-between;align-items:center;gap:40px}
    .contact h2{font-size:32px;line-height:1.3;margin-top:13px}
    .contact p{color:rgba(255,255,255,.76);font-size:14px;margin-top:9px}
    .contact .eyebrow{color:#a8fff1}
    .contact-form{display:flex;gap:9px;min-width:405px}
    .contact-form input{min-width:0;flex:1;border:0;border-radius:11px;padding:13px 15px;background:#fff;color:var(--ink)}
    .contact-form .btn{background:var(--cyan);white-space:nowrap}
    footer{background:#171927;color:#fff;padding:62px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:46px}
    .footer-brand p{color:#999bad;max-width:270px;font-size:13px;line-height:1.9;margin-top:17px}
    footer h3{font-size:13px;margin-bottom:15px}
    footer ul{list-style:none}
    footer li{margin:9px 0;color:#999bad;font-size:12px}
    footer li a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;color:#777b90;font-size:11px;display:flex;justify-content:space-between;gap:20px}
    @media (max-width:1024px){
      .collection-grid{grid-template-columns:repeat(3,1fr)}
      .topic-grid{grid-template-columns:repeat(2,1fr)}
      .news-list{grid-template-columns:repeat(2,1fr)}
      .related-grid{grid-template-columns:repeat(2,1fr)}
      .ranking-layout{grid-template-columns:1fr}
      .rank-note{min-height:250px}
    }
    @media (max-width:768px){
      .container{width:min(var(--max),calc(100% - 34px))}
      header{height:68px}
      nav{position:absolute;left:17px;right:17px;top:61px;background:#fff;padding:17px;display:none;flex-direction:column;align-items:stretch;gap:0;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow)}
      nav.open{display:flex}
      nav a{padding:11px 8px;border-bottom:1px solid #f0f0f3}
      nav a:last-child{border-bottom:0}
      .nav-action{justify-content:center;margin-top:8px}
      .menu-toggle{display:block}
      .hero{min-height:620px}
      .hero-content{padding:68px 0 125px}
      .hero h1{font-size:45px}
      .hero-lead{font-size:14px}
      .metrics-grid{grid-template-columns:repeat(2,1fr)}
      .metric{border-bottom:1px solid var(--line)}
      .metric:nth-child(2){border-right:0}
      .live-grid,.save-layout{grid-template-columns:1fr}
      .live-cover{min-height:320px}
      .save-layout{gap:32px}
      .collection-grid{grid-template-columns:repeat(2,1fr)}
      .card-image{height:180px}
      .voice-grid,.assurance-grid{grid-template-columns:1fr}
      .contact-inner{display:block}
      .contact-form{min-width:0;margin-top:25px}
      .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:520px){
      section{padding:67px 0}
      .section-head{display:block;margin-bottom:24px}
      .section-head p{margin-top:12px}
      .more-link{display:inline-block;margin-top:15px}
      .hero h1{font-size:38px}
      .hero-actions .btn{width:100%}
      .hero-foot{gap:16px}
      .metric{padding:19px 17px}
      .metric strong{font-size:23px}
      .collection-grid,.related-grid,.news-list{grid-template-columns:1fr}
      .card-image{height:215px}
      .related-card{grid-template-columns:112px 1fr}
      .related-card img{height:112px}
      .news-item{grid-template-columns:95px 1fr}
      .news-item img{height:78px}
      .topic-grid{grid-template-columns:1fr 1fr}
      .topic{min-height:145px;padding:16px}
      .topic h3{font-size:17px}
      .rank-row{grid-template-columns:34px 1fr 50px}
      .rank-row .heat{display:none}
      .rank-type{display:block;width:max-content;margin:4px 0 0}
      .contact h2{font-size:27px}
      .contact-form{display:block}
      .contact-form input,.contact-form .btn{width:100%}
      .contact-form .btn{margin-top:9px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-bottom{display:block;line-height:1.8}
      .footer-bottom span{display:block;margin-top:6px}
    }