/* ============================================
   dw-binance.com — Tivo-style purple landing
   ============================================ */
:root{
  --purple:#6c63ff;--purple-dark:#5a52d5;--purple-light:#f0eeff;
  --dark:#2d3436;--text:#636e72;--text2:#b2bec3;--bg:#fff;--bg2:#f8f9ff;
  --green:#00b894;--red:#e17055;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;color:var(--dark);background:#fff;line-height:1.7;font-size:16px}
a{color:var(--purple);text-decoration:none;transition:color .2s}
a:hover{color:var(--purple-dark)}
img{max-width:100%;height:auto}
.container{max-width:1140px;margin:0 auto;padding:0 24px}

/* --- Buttons --- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:8px;cursor:pointer;border:2px solid transparent;transition:all .25s;font-size:15px;padding:12px 28px;text-decoration:none;line-height:1.4}
.btn--primary{background:var(--purple);color:#fff;border-color:var(--purple);box-shadow:0 4px 14px rgba(108,99,255,.3)}
.btn--primary:hover{background:var(--purple-dark);border-color:var(--purple-dark);color:#fff;box-shadow:0 6px 20px rgba(108,99,255,.4);transform:translateY(-1px)}
.btn--outline{background:transparent;color:var(--purple);border-color:var(--purple)}
.btn--outline:hover{background:var(--purple);color:#fff}
.btn--white{background:#fff;color:var(--purple);border-color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.btn--white:hover{background:var(--purple-light);color:var(--purple-dark)}
.btn--outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn--outline-white:hover{background:rgba(255,255,255,.15);border-color:#fff;color:#fff}
.btn--sm{padding:8px 20px;font-size:13px}
.btn--lg{padding:14px 32px;font-size:16px}
.btn--full{width:100%}

/* --- Section --- */
.sec{padding:72px 0}
.sec--alt{background:var(--bg2)}
.sec-badge{display:inline-block;color:var(--purple);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:2px;margin-bottom:8px}
.sec-title{font-size:28px;font-weight:800;color:var(--dark);margin-bottom:10px;line-height:1.3}
.sec-desc{font-size:15px;color:var(--text);max-width:560px;line-height:1.7}
.sec-center{text-align:center}
.sec-center .sec-desc{margin:0 auto}

/* --- Header --- */
.hdr{position:sticky;top:0;z-index:100;background:#fff;transition:box-shadow .3s}
.hdr.scrolled{box-shadow:0 2px 16px rgba(0,0,0,.06)}
.hdr__inner{display:flex;align-items:center;height:64px;gap:24px}
.hdr__brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--purple);flex-shrink:0}
.hdr__brand svg{width:32px;height:32px}
.hdr__nav{display:flex;gap:6px;margin-left:auto}
.hdr__nav a{font-size:14px;color:var(--text);font-weight:500;padding:8px 14px;border-radius:6px;transition:all .2s}
.hdr__nav a:hover{color:var(--purple)}
.hdr__cta{padding:8px 22px;background:var(--purple);color:#fff;border-radius:8px;font-size:14px;font-weight:600;white-space:nowrap;transition:all .2s;box-shadow:0 2px 8px rgba(108,99,255,.25)}
.hdr__cta:hover{background:var(--purple-dark);color:#fff;box-shadow:0 4px 12px rgba(108,99,255,.35)}
.hdr__burger{display:none;background:none;border:none;color:var(--dark);cursor:pointer}
.hdr__burger svg{width:24px;height:24px}
.lang-switch{display:flex;gap:4px}
.lang-switch a{font-size:12px;padding:4px 8px;border-radius:4px;color:var(--text);font-weight:600;border:1px solid transparent;transition:all .15s}
.lang-switch a:hover,.lang-switch a.active{color:var(--purple);border-color:var(--purple-light);background:var(--purple-light)}
@media(max-width:768px){
  .hdr__nav,.lang-switch,.hdr__cta{display:none}
  .hdr__burger{display:block}
}

/* Mobile overlay */
.mob{display:none;position:fixed;inset:0;background:rgba(255,255,255,.98);z-index:200;flex-direction:column;align-items:center;justify-content:center;gap:24px}
.mob--open{display:flex}
.mob__close{position:absolute;top:16px;right:16px;background:none;border:none;cursor:pointer;color:var(--dark)}
.mob__close svg{width:28px;height:28px}
.mob a{font-size:1.2rem;color:var(--dark);font-weight:500}
.mob a:hover{color:var(--purple)}
.mob__lang{display:flex;gap:8px;margin-top:12px}
.mob__lang a{font-size:.85rem;padding:6px 12px;border-radius:4px;color:var(--text)}
.mob__lang a.on{background:var(--purple-light);color:var(--purple)}

/* --- Hero (Tivo: purple gradient, left text) --- */
.hero{background:linear-gradient(135deg,#6c63ff 0%,#5a52d5 50%,#4834d4 100%);color:#fff;padding:80px 0 64px;position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;right:-100px;bottom:-100px;width:400px;height:400px;background:rgba(255,255,255,.05);border-radius:50%}
.hero::before{content:'';position:absolute;left:50%;top:-50px;width:300px;height:300px;background:rgba(255,255,255,.04);border-radius:50%}
.hero .container{position:relative;z-index:1}
.hero__content{max-width:600px}
.hero__title{font-size:clamp(28px,5vw,44px);font-weight:800;line-height:1.2;margin-bottom:16px}
.hero__desc{font-size:17px;opacity:.9;margin-bottom:32px;line-height:1.8}
.hero__btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}

/* --- Ticker (live prices, scrolling) --- */
.ticker{background:var(--dark);color:#fff;padding:14px 0;overflow:hidden}
.ticker__track{overflow:hidden;position:relative}
.ticker__scroll{display:flex;gap:36px;animation:tickerScroll 30s linear infinite;width:max-content}
.ticker__scroll:hover{animation-play-state:paused}
@keyframes tickerScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.ticker__item{display:flex;align-items:center;gap:10px;font-size:14px;white-space:nowrap;padding:0 4px}
.ticker__name{font-weight:700;color:#fff;min-width:40px}
.ticker__price{color:var(--text2);min-width:70px}
.ticker__change{font-weight:600;font-size:13px;padding:2px 8px;border-radius:4px;min-width:65px;text-align:center}
.ticker__change--up{color:var(--green);background:rgba(0,184,148,.1)}
.ticker__change--down{color:var(--red);background:rgba(225,112,85,.1)}

/* --- Features (3 cards) --- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:40px}
@media(max-width:768px){.feat-grid{grid-template-columns:1fr;gap:20px}}
.feat-card{text-align:center;padding:36px 24px;background:#fff;border-radius:16px;box-shadow:0 2px 20px rgba(0,0,0,.04);transition:all .3s;border:2px solid transparent}
.feat-card:hover{border-color:var(--purple);box-shadow:0 8px 28px rgba(108,99,255,.1);transform:translateY(-4px)}
.feat-card__icon{width:64px;height:64px;background:var(--purple-light);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;color:var(--purple)}
.feat-card__title{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:8px}
.feat-card__desc{font-size:14px;color:var(--text);line-height:1.7}

/* --- Advantages (2-col alternating) --- */
.adv{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-top:40px}
@media(max-width:768px){.adv{grid-template-columns:1fr;gap:24px}}
.adv--reverse .adv__visual{order:-1}
@media(max-width:768px){.adv--reverse .adv__visual{order:0}}
.adv__visual{background:var(--purple-light);border-radius:20px;padding:40px;display:flex;align-items:center;justify-content:center;min-height:240px;color:var(--purple)}
.adv__content h3{font-size:24px;font-weight:800;color:var(--dark);margin-bottom:12px;line-height:1.3}
.adv__content p{font-size:15px;color:var(--text);margin-bottom:16px;line-height:1.8}
.adv__list{list-style:none;margin-bottom:20px}
.adv__list li{padding:6px 0;font-size:14px;color:var(--text);display:flex;align-items:center;gap:8px}
.adv__list li::before{content:'';width:6px;height:6px;background:var(--purple);border-radius:50%;flex-shrink:0}

/* --- Steps --- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
@media(max-width:900px){.steps-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:500px){.steps-grid{grid-template-columns:1fr}}
.step{background:#fff;border-radius:14px;padding:28px 20px;text-align:center;box-shadow:0 2px 16px rgba(0,0,0,.04);position:relative;transition:all .3s}
.step:hover{box-shadow:0 8px 24px rgba(108,99,255,.1);transform:translateY(-3px)}
.step__num{width:40px;height:40px;background:var(--purple);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;margin:0 auto 14px;box-shadow:0 4px 10px rgba(108,99,255,.3)}
.step__title{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:8px}
.step__desc{font-size:13px;color:var(--text);line-height:1.6}

/* --- CTA Banner --- */
.cta-banner{background:linear-gradient(135deg,#6c63ff,#4834d4);border-radius:20px;padding:52px 40px;text-align:center;color:#fff;box-shadow:0 8px 32px rgba(108,99,255,.3)}
.cta-banner h2{font-size:26px;font-weight:800;margin-bottom:12px}
.cta-banner p{opacity:.9;margin-bottom:24px;font-size:16px;max-width:500px;margin-left:auto;margin-right:auto}
.cta-banner__btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* --- FAQ --- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:32px}
@media(max-width:768px){.faq-grid{grid-template-columns:1fr}}
.faq-item{background:#fff;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.04);overflow:hidden;border:1px solid #f0f0f0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:none;border:none;cursor:pointer;font-size:15px;font-weight:600;color:var(--dark);text-align:left;gap:12px}
.faq-q svg{flex-shrink:0;transition:transform .3s;color:var(--purple)}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:200px}
.faq-a p{padding:0 20px 16px;font-size:14px;color:var(--text);line-height:1.7}

/* FAQ open cards (no collapse) */
.faq-open-card{background:#fff;border-radius:14px;padding:24px 28px;box-shadow:0 2px 16px rgba(0,0,0,.04);border-left:4px solid var(--purple)}
.faq-open-card__q{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:10px;line-height:1.5}
.faq-open-card__a{font-size:14px;color:var(--text);line-height:1.8}

/* --- Footer --- */
.ftr{background:#1e1e2f;color:#a0a3bd;padding:48px 0 24px}
.ftr__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
@media(max-width:768px){.ftr__grid{grid-template-columns:1fr 1fr;gap:24px}}
@media(max-width:480px){.ftr__grid{grid-template-columns:1fr}}
.ftr__brand{font-size:18px;font-weight:800;color:#fff;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.ftr__brand svg{width:24px;height:24px}
.ftr__desc{font-size:13px;line-height:1.7;color:#6c6f85}
.ftr__col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.ftr__col ul{list-style:none}
.ftr__col li{margin-bottom:8px}
.ftr__col a{color:#6c6f85;font-size:13px;transition:color .2s}
.ftr__col a:hover{color:var(--purple)}
.ftr__lang{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.ftr__lang a{display:inline-block;padding:4px 10px;font-size:12px;color:#6c6f85;border:1px solid #2d2d44;border-radius:6px;transition:all .2s}
.ftr__lang a:hover,.ftr__lang a.active{color:#fff;border-color:var(--purple);background:rgba(108,99,255,.2)}
.ftr__bottom{border-top:1px solid #2d2d44;padding-top:20px;font-size:12px;color:#4a4a6a}
.ftr__risk{margin-bottom:8px;line-height:1.7}
.ftr__risk strong{color:#6c6f85}

/* --- Download page --- */
.dl-hero{background:linear-gradient(135deg,#6c63ff,#4834d4);color:#fff;padding:56px 0;text-align:center}
.dl-hero h1{font-size:2rem;font-weight:800;margin-bottom:12px}
.dl-hero p{font-size:1rem;opacity:.9;max-width:480px;margin:0 auto}
.dl-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dl-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.dl-grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.dl-card{background:#fff;border-radius:14px;padding:28px;text-align:center;box-shadow:0 2px 16px rgba(0,0,0,.05);border:2px solid transparent;transition:all .3s}
.dl-card:hover{border-color:var(--purple);box-shadow:0 8px 24px rgba(108,99,255,.1)}
.dl-badge{display:inline-block;color:#fff;font-size:.75rem;font-weight:700;padding:4px 14px;border-radius:20px;margin-bottom:16px;letter-spacing:1px}
.dl-card h2{font-size:1.1rem;font-weight:700;color:var(--dark);margin-bottom:14px}
.dl-card ul{list-style:none;text-align:left;margin-bottom:20px;padding:0}
.dl-card li{padding:6px 0;font-size:.88rem;color:var(--text);border-bottom:1px solid #f5f5f5}
.dl-card li:last-child{border-bottom:none}
.dl-step{background:#fff;border-radius:12px;padding:24px 16px;text-align:center;box-shadow:0 1px 8px rgba(0,0,0,.04)}
.dl-step__num{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;margin:0 auto 12px}
.dl-step h3{font-size:.88rem;font-weight:700;color:var(--dark);margin-bottom:8px}
.dl-step p{font-size:.8rem;color:var(--text);line-height:1.6}
@media(max-width:768px){
  .dl-grid3{grid-template-columns:1fr}
  .dl-grid4,.dl-grid5{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){.dl-grid4,.dl-grid5{grid-template-columns:1fr}}

/* --- Back to top --- */
.back-top{position:fixed;bottom:24px;right:24px;width:40px;height:40px;background:var(--purple);color:#fff;border:none;border-radius:10px;cursor:pointer;opacity:0;transform:translateY(10px);transition:all .3s;box-shadow:0 2px 10px rgba(108,99,255,.3);z-index:50;display:flex;align-items:center;justify-content:center}
.back-top--show{opacity:1;transform:translateY(0)}
.back-top svg{width:20px;height:20px}

/* --- Post Layout with Sidebar --- */
.post-layout{display:grid;grid-template-columns:1fr 280px;gap:40px;align-items:start}
.post-main{min-width:0}
.post-sidebar{position:sticky;top:80px}
.sidebar-block{background:var(--gray1,#f8f9fa);border:1px solid var(--gray2,#e9ecef);border-radius:12px;padding:20px;margin-bottom:20px}
.sidebar-block__title{font-size:15px;font-weight:700;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--purple)}
.sidebar-list{list-style:none;padding:0;margin:0}
.sidebar-list li{padding:6px 0;border-bottom:1px solid var(--gray2,#e9ecef)}
.sidebar-list li:last-child{border-bottom:none}
.sidebar-list a{font-size:13px;color:var(--dark,#1c1917);text-decoration:none;line-height:1.5;display:block}
.sidebar-list a:hover{color:var(--purple)}
.sidebar-tags{display:flex;flex-wrap:wrap;gap:6px}
.sidebar-tag{font-size:12px;padding:4px 10px;border-radius:20px;background:var(--purple-light,#f0eeff);color:var(--purple);text-decoration:none;transition:all .2s}
.sidebar-tag:hover{background:var(--purple);color:#fff}
@media(max-width:768px){.post-layout{grid-template-columns:1fr}.post-sidebar{position:static}}

/* --- Post Body --- */
.post-body h2{font-size:22px;font-weight:700;margin:28px 0 14px;padding-bottom:8px;border-bottom:1px solid var(--gray2,#e9ecef)}
.post-body h3{font-size:18px;font-weight:600;margin:22px 0 10px}
.post-body p{margin-bottom:14px;line-height:1.8}
.post-body ul,.post-body ol{margin-bottom:14px;padding-left:24px}
.post-body li{margin-bottom:6px;line-height:1.7}
.post-body table{width:100%;border-collapse:collapse;margin-bottom:16px}
.post-body th,.post-body td{border:1px solid var(--gray2,#e9ecef);padding:8px 12px;font-size:14px}
.post-body th{background:var(--gray1,#f8f9fa);font-weight:600}
.post-body img{max-width:100%;border-radius:8px;margin:16px 0}
.post-body a{color:var(--purple);text-decoration:underline}

/* --- Utility --- */
.text-center{text-align:center}
.mt-40{margin-top:40px}