/* roulang page: index */
:root{
  --amber:#E8A33D;
  --amber-dark:#C97F1F;
  --coral:#D94F3D;
  --ink:#221D16;
  --cream:#FFF9EF;
  --sand:#EADDC8;
  --gray:#6E7C75;
  --card:#FFFDF8;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 40px rgba(80,50,20,.10);
  --shadow-hover:0 24px 50px rgba(80,50,20,.16);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;padding-bottom:76px;font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--ink);background:var(--cream);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;object-fit:cover}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;line-height:1.25;letter-spacing:.2px}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
table{border-collapse:collapse;width:100%}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:88px 0}
.sec-alt{background:#FDF3E3}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-title{font-size:32px;color:var(--ink)}
.sec-sub{margin-top:10px;font-size:15px;color:var(--gray)}
.tag{display:inline-block;padding:4px 12px;border-radius:999px;background:rgba(232,163,61,.16);color:#8A5A10;font-size:13px;font-weight:600;letter-spacing:.4px}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;height:72px;background:rgba(255,249,239,.58);-webkit-backdrop-filter:saturate(180%) blur(16px);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid rgba(234,221,200,.75);box-shadow:0 6px 24px rgba(80,50,20,.06);transition:background .3s,box-shadow .3s}
.site-header.scrolled{background:rgba(255,249,239,.97);box-shadow:0 10px 30px rgba(80,50,20,.12);border-bottom-color:var(--sand)}
.header-inner{display:flex;align-items:center;gap:24px;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--amber),var(--coral));display:flex;align-items:center;justify-content:center;box-shadow:0 6px 14px rgba(217,79,61,.28)}
.brand-mark svg{width:20px;height:20px;fill:#FFF9EF}
.brand-name{font-family:var(--font-serif);font-weight:700;font-size:17px;letter-spacing:.3px;white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-desktop a{font-size:15px;color:#3B342A;padding:6px 0;position:relative;transition:color .2s}
.nav-desktop a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav-desktop a:hover{color:#8A5A10}
.nav-desktop a:hover::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid rgba(34,29,22,.12);transition:.25s}
.icon-btn:hover{background:rgba(232,163,61,.16);border-color:var(--amber)}
.icon-btn svg{width:18px;height:18px;stroke:var(--ink);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.menu-btn{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 28px;border-radius:999px;font-size:16px;font-weight:600;border:1px solid transparent;transition:background .25s,transform .25s,box-shadow .25s,border-color .25s}
.btn-primary{background:var(--amber);color:#2A2113;box-shadow:0 10px 24px rgba(232,163,61,.36)}
.btn-primary:hover{background:var(--amber-dark);transform:translateY(-2px);box-shadow:0 16px 32px rgba(201,127,31,.38)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(34,29,22,.28)}
.btn-ghost:hover{background:rgba(232,163,61,.12);border-color:var(--amber)}
.btn-sm{min-height:42px;padding:0 20px;font-size:15px}
.btn:focus-visible,.icon-btn:focus-visible,a:focus-visible{outline:3px solid rgba(232,163,61,.65);outline-offset:2px}

/* hero */
.hero{position:relative;overflow:hidden;padding:132px 0 84px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,249,239,.94) 0%,rgba(255,249,239,.86) 45%,rgba(255,249,239,.97) 100%)}
.hero-glow{position:absolute;top:-160px;right:-120px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(232,163,61,.30),rgba(232,163,61,0) 68%);z-index:0}
.hero .container{position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;background:rgba(255,253,248,.9);border:1px solid var(--sand);font-size:13px;font-weight:600;color:#8A5A10;margin-bottom:20px}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--coral)}
.hero h1{font-size:60px;line-height:1.14;letter-spacing:1px}
.hl{background:linear-gradient(transparent 64%,rgba(232,163,61,.52) 64%)}
.hero-lead{margin-top:18px;font-size:20px;font-weight:500;color:#3B342A;font-family:var(--font-serif)}
.hero-desc{margin-top:16px;font-size:16px;line-height:1.75;color:#4C443A;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;font-size:14px;color:var(--gray)}
.hero-trust li{display:flex;align-items:center;gap:8px}
.hero-trust li::before{content:"✓";display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:rgba(232,163,61,.22);color:#8A5A10;font-size:11px;font-weight:700}
.hero-stage{position:relative}
.player-card{background:var(--card);border:1px solid var(--sand);border-radius:22px;padding:12px;box-shadow:var(--shadow);position:relative}
.player-screen{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/9;background:#2A2113}
.player-screen img{width:100%;height:100%}
.player-screen::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,14,6,.05),rgba(20,14,6,.55))}
.play-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:62px;height:62px;border-radius:50%;background:rgba(255,249,239,.92);display:flex;align-items:center;justify-content:center;box-shadow:0 12px 28px rgba(20,14,6,.32);z-index:2;transition:transform .25s}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.06)}
.play-btn svg{width:22px;height:22px;fill:#C97F1F;margin-left:3px}
.q-badge{position:absolute;top:12px;left:12px;z-index:2;padding:2px 10px;border-radius:999px;background:rgba(34,29,22,.78);color:#FFF3DD;font-size:12px;font-weight:700;letter-spacing:.5px}
.player-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 6px 4px}
.player-bar h2{font-size:17px}
.player-bar span{font-size:13px;color:var(--gray)}
.hero-thumbs{display:flex;gap:12px;margin-top:16px}
.hero-thumbs figure{margin:0;flex:1;border-radius:12px;overflow:hidden;border:1px solid var(--sand);box-shadow:0 10px 22px rgba(80,50,20,.10);position:relative;aspect-ratio:16/9;background:#EFE3CF}
.hero-thumbs img{width:100%;height:100%}
.hero-thumbs figcaption{position:absolute;left:0;right:0;bottom:0;padding:4px 8px;font-size:11px;color:#FFF6E6;background:linear-gradient(transparent,rgba(20,14,6,.72));white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why-card{background:var(--card);border:1px solid var(--sand);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s}
.why-card:hover{transform:translateY(-4px);border-color:rgba(232,163,61,.6);box-shadow:var(--shadow-hover)}
.why-icon{width:48px;height:48px;border-radius:14px;background:rgba(232,163,61,.18);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.why-icon svg{width:22px;height:22px;stroke:#C97F1F;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.why-card h3{font-size:18px;margin-bottom:10px}
.why-card p{font-size:15px;color:#4C443A;line-height:1.7}

/* mv grid */
.mv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.mv-card{display:block;background:var(--card);border:1px solid var(--sand);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s}
.mv-card:hover{transform:translateY(-4px);border-color:rgba(232,163,61,.7);box-shadow:var(--shadow-hover)}
.mv-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFE3CF;border-bottom:1px solid var(--sand)}
.mv-cover img{width:100%;height:100%;transition:transform .35s ease}
.mv-card:hover .mv-cover img{transform:scale(1.03)}
.mv-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,14,6,0),rgba(20,14,6,.42));opacity:0;transition:opacity .3s}
.mv-card:hover .mv-cover::after{opacity:1}
.dur{position:absolute;right:8px;bottom:8px;z-index:2;padding:1px 8px;border-radius:6px;background:rgba(20,14,6,.76);color:#FFF6E6;font-size:12px;letter-spacing:.4px}
.play-ico{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.86);z-index:2;width:46px;height:46px;border-radius:50%;background:rgba(255,249,239,.94);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s,transform .3s}
.play-ico svg{width:16px;height:16px;fill:#C97F1F;margin-left:2px}
.mv-card:hover .play-ico{opacity:1;transform:translate(-50%,-50%) scale(1)}
.mv-body{padding:14px 16px 18px}
.mv-body h3{font-size:16px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:45px}
.mv-meta{margin-top:8px;font-size:13px;color:var(--gray);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.mv-meta em{font-style:normal;color:#B4701C;font-weight:600}

/* latest */
.latest-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px}
.latest-item{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--sand);border-radius:var(--radius-sm);padding:12px;box-shadow:0 10px 24px rgba(80,50,20,.07);transition:transform .25s,border-color .25s,box-shadow .25s}
.latest-item:hover{transform:translateY(-3px);border-color:rgba(232,163,61,.7);box-shadow:var(--shadow)}
.latest-thumb{position:relative;flex:0 0 148px;aspect-ratio:16/9;border-radius:8px;overflow:hidden;background:#EFE3CF}
.latest-thumb img{width:100%;height:100%}
.latest-info{min-width:0}
.latest-info h3{font-size:16px;line-height:1.4;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.latest-info p{margin-top:6px;font-size:13px;color:var(--gray)}
.latest-info p b{color:#B4701C;font-weight:600}

/* demo */
.demo-wrap{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.steps li{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--sand)}
.steps li:last-child{border-bottom:0}
.step-num{flex:0 0 40px;width:40px;height:40px;border-radius:12px;background:rgba(232,163,61,.2);color:#8A5A10;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}
.steps h3{font-size:17px;margin-bottom:5px}
.steps p{font-size:15px;color:#4C443A}
.demo-stage{position:relative;background:var(--card);border:1px solid var(--sand);border-radius:22px;padding:14px;box-shadow:var(--shadow)}
.demo-screen{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/9;background:#2A2113}
.demo-screen img{width:100%;height:100%}
.demo-screen::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,14,6,.06),rgba(20,14,6,.58))}
.demo-meta{position:absolute;left:16px;right:16px;bottom:14px;z-index:2;color:#FFF6E6;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px}
.demo-meta strong{font-family:var(--font-serif);font-size:16px;display:block}
.demo-tags{display:flex;gap:8px;padding:14px 6px 2px;flex-wrap:wrap}
.chip{padding:4px 12px;border-radius:999px;border:1px solid var(--sand);font-size:13px;color:#5A5148;background:#FFFDF8}
.chip-on{background:rgba(232,163,61,.18);border-color:rgba(232,163,61,.55);color:#8A5A10;font-weight:600}

/* category */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{position:relative;display:block;background:#FFF7E9;border:1px solid var(--sand);border-radius:var(--radius);padding:26px 24px 24px;box-shadow:0 12px 28px rgba(80,50,20,.07);transition:border-color .25s,box-shadow .25s;overflow:hidden}
.cat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--amber)}
.cat-card:nth-child(2)::before,.cat-card:nth-child(5)::before{background:var(--coral)}
.cat-card:nth-child(3)::before,.cat-card:nth-child(6)::before{background:var(--gray)}
.cat-card:hover{border-color:rgba(232,163,61,.85);box-shadow:var(--shadow-hover)}
.cat-card h3{font-size:19px;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.cat-card h3 span{font-size:13px;font-weight:600;color:#8A5A10;background:rgba(232,163,61,.2);padding:2px 10px;border-radius:999px;font-family:var(--font-sans)}
.cat-card p{font-size:15px;color:#4C443A}

/* rank */
.rank-wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px}
.rank-item{display:grid;grid-template-columns:44px 1fr auto auto;gap:12px;align-items:center;padding:15px 6px;border-bottom:1px solid rgba(234,221,200,.85);transition:background .2s}
.rank-item:hover{background:rgba(232,163,61,.08)}
.rank-no{font-family:"DIN Alternate","Roboto Condensed",var(--font-sans);font-size:22px;font-weight:700;color:#5A5148;text-align:center}
.rank-item.top .rank-no{color:var(--amber-dark);font-size:28px}
.rank-title{font-size:16px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-play{font-size:13px;color:var(--gray);white-space:nowrap}
.rank-cat{font-size:12px;color:#8A5A10;background:rgba(232,163,61,.16);border-radius:999px;padding:2px 10px;white-space:nowrap}

/* proof */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}
.stat{background:var(--card);border:1px solid var(--sand);border-radius:var(--radius);padding:26px;text-align:center;box-shadow:0 12px 28px rgba(80,50,20,.07)}
.stat b{display:block;font-family:"DIN Alternate","Roboto Condensed",var(--font-sans);font-size:40px;line-height:1.1;color:var(--amber-dark)}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--gray)}
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.review{background:var(--card);border:1px solid var(--sand);border-radius:var(--radius);padding:22px;box-shadow:0 12px 28px rgba(80,50,20,.07)}
.review p{font-size:15px;color:#4C443A;line-height:1.7}
.review-user{display:flex;align-items:center;gap:10px;margin-top:16px}
.avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#FFF9EF;background:linear-gradient(135deg,var(--amber),var(--coral))}
.review-user span{font-size:13px;color:var(--gray)}

/* compare */
.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius);border:1px solid var(--sand);background:var(--card);box-shadow:var(--shadow)}
.compare-table{min-width:660px;font-size:15px}
.compare-table th,.compare-table td{padding:16px 20px;text-align:left;border-bottom:1px solid rgba(234,221,200,.9)}
.compare-table thead th{font-family:var(--font-serif);font-size:16px;background:#FDF3E3}
.compare-table thead th:last-child{color:#8A5A10}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody th{font-weight:600;color:#3B342A;width:22%}
.compare-table td{color:#4C443A}
.yes{color:#2F7A4F;font-weight:700}
.no{color:#A79C8B}
.compare-table td .cell-txt{display:inline-block}

/* topic */
.topic-grid{display:grid;grid-template-columns:1.35fr 1fr;grid-template-rows:repeat(2,1fr);gap:24px}
.topic-card{position:relative;display:block;border-radius:var(--radius);overflow:hidden;border:1px solid var(--sand);box-shadow:var(--shadow);min-height:220px;transition:transform .25s,box-shadow .25s}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.topic-card img{position:absolute;inset:0;width:100%;height:100%}
.topic-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,14,6,.06),rgba(20,14,6,.78))}
.topic-card.big{grid-row:span 2;min-height:460px}
.topic-body{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding:26px;color:#FFF6E6}
.topic-body h3{font-size:22px;margin-bottom:8px}
.topic-body p{font-size:14px;line-height:1.65;color:rgba(255,246,230,.86);max-width:420px}
.topic-card.big .topic-body h3{font-size:26px}

/* news */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px}
.news-item{display:flex;gap:14px;align-items:flex-start;padding:14px;border:1px solid var(--sand);border-radius:var(--radius-sm);background:var(--card);box-shadow:0 10px 24px rgba(80,50,20,.06);transition:transform .25s,border-color .25s}
.news-item:hover{transform:translateY(-3px);border-color:rgba(232,163,61,.7)}
.news-thumb{flex:0 0 132px;aspect-ratio:16/9;border-radius:8px;overflow:hidden;background:#EFE3CF}
.news-thumb img{width:100%;height:100%}
.news-info h3{font-size:16px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-info time{display:block;margin-top:8px;font-size:12px;color:#A79C8B}

/* faq */
.faq-wrap{max-width:880px}
.faq-item{background:var(--card);border:1px solid var(--sand);border-radius:var(--radius-sm);margin-bottom:12px;box-shadow:0 8px 20px rgba(80,50,20,.06);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:600;font-family:var(--font-serif);display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-family:var(--font-sans);font-size:20px;color:var(--amber-dark);transition:transform .25s}
.faq-item[open] summary::after{content:"−"}
.faq-item[open]{border-color:rgba(232,163,61,.65)}
.faq-item p{padding:0 22px 20px;font-size:15px;color:#4C443A}

/* guarantee */
.guarantee{background:#2A2113;color:#FFF6E6}
.guarantee .sec-title{color:#FFF6E6}
.guarantee .sec-sub{color:rgba(255,246,230,.68)}
.guarantee-row{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.g-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;flex:1 1 620px}
.g-item{display:flex;align-items:center;gap:12px}
.g-icon{flex:0 0 42px;width:42px;height:42px;border-radius:12px;background:rgba(232,163,61,.2);display:flex;align-items:center;justify-content:center}
.g-icon svg{width:20px;height:20px;stroke:#E8A33D;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.g-item span{font-size:15px;color:rgba(255,246,230,.92)}
.g-cta{flex:0 0 auto}

/* footer */
.site-footer{background:#1D1811;color:rgba(255,246,230,.78);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px}
.footer-brand span{font-family:var(--font-serif);font-size:16px;color:#FFF6E6;font-weight:700}
.footer-about{font-size:14px;line-height:1.75;color:rgba(255,246,230,.62)}
.footer-col h4{font-size:15px;color:#FFF6E6;margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,246,230,.65);transition:color .2s}
.footer-col a:hover{color:var(--amber)}
.footer-col p{font-size:14px;line-height:1.75;color:rgba(255,246,230,.62)}
.copyright{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,246,230,.14);font-size:13px;color:rgba(255,246,230,.5);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* sticky bar */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:95;background:rgba(255,249,239,.95);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--sand);box-shadow:0 -10px 28px rgba(80,50,20,.10);padding:12px 0 calc(12px + env(safe-area-inset-bottom));opacity:0;transform:translateY(100%);pointer-events:none;transition:opacity .3s,transform .3s}
.sticky-bar.show{opacity:1;transform:none;pointer-events:auto}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.sticky-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-weight:700;font-size:15px}
.sticky-brand .dot{width:10px;height:10px;border-radius:50%;background:var(--coral)}

/* mobile menu */
.mobile-menu{position:fixed;inset:0;z-index:120;background:var(--cream);transform:translateX(100%);transition:transform .32s ease;display:flex;flex-direction:column;padding:0 24px 32px;overflow-y:auto}
body.menu-open .mobile-menu{transform:none}
.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;height:60px;border-bottom:1px solid var(--sand)}
.mobile-menu-head .brand-name{font-size:16px}
.mobile-menu nav{display:flex;flex-direction:column;padding-top:12px}
.mobile-menu nav a{display:flex;align-items:center;min-height:48px;font-size:16px;border-bottom:1px solid rgba(234,221,200,.8);color:#3B342A}
.mobile-menu .btn{margin-top:24px;width:100%}

@media (max-width:1024px){
  .hero{padding:120px 0 72px}
  .hero h1{font-size:46px}
  .mv-grid{grid-template-columns:repeat(3,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .demo-wrap{grid-template-columns:1fr;gap:32px}
  .sec{padding:72px 0}
  .nav-desktop{display:none}
  .menu-btn{display:flex}
  .g-list{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .site-header{height:60px}
  .header-inner{gap:12px}
  .brand-name{font-size:15px;white-space:normal;line-height:1.15;max-width:150px}
  .header-actions .btn{display:none}
  .hero{padding:104px 0 60px}
  .hero h1{font-size:38px}
  .hero-lead{font-size:18px}
  .hero-desc{font-size:15px}
  .hero-cta{gap:12px}
  .hero-cta .btn{flex:1 1 auto;padding:0 20px}
  .hero-trust{gap:16px;font-size:13px}
  .sec-title{font-size:26px}
  .mv-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .latest-list,.news-list{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr;gap:16px}
  .review-grid{grid-template-columns:1fr}
  .rank-wrap{grid-template-columns:1fr}
  .topic-grid{grid-template-columns:1fr;grid-template-rows:none}
  .topic-card.big{grid-row:auto;min-height:300px}
  .topic-card{min-height:240px}
  .guarantee-row{flex-direction:column;align-items:flex-start}
  .g-list{grid-template-columns:1fr 1fr;width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .sticky-bar{opacity:1;transform:none;pointer-events:auto}
  .sticky-brand{font-size:13px}
  .sticky-inner .btn{min-height:44px;padding:0 18px;font-size:14px}
  .demo-wrap{gap:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .sec{padding:52px 0}
  .hero h1{font-size:34px}
  .hero-badge{font-size:12px;padding:5px 12px}
  .hero-cta .btn{width:100%}
  .hero-thumbs{gap:8px}
  .mv-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .mv-body{padding:12px 12px 14px}
  .mv-body h3{font-size:14px;min-height:40px}
  .mv-meta{font-size:12px;gap:6px}
  .cat-grid{grid-template-columns:1fr}
  .latest-thumb{flex:0 0 112px}
  .news-thumb{flex:0 0 104px}
  .rank-item{grid-template-columns:34px 1fr auto;gap:8px}
  .rank-play{display:none}
  .rank-no{font-size:18px}
  .rank-item.top .rank-no{font-size:22px}
  .stat b{font-size:34px}
  .sticky-brand span{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .g-list{grid-template-columns:1fr}
  .footer-grid{gap:24px}
  .copyright{flex-direction:column;gap:6px}
}