:root{
      --theme:#0B3D91;
      --deep:#071b49;
      --blue:#1769c2;
      --wave:#2f9eea;
      --pale:#edf7ff;
      --ink:#12213d;
      --muted:#687792;
      --line:#dce8f5;
      --white:#fff;
      --shadow:0 16px 45px rgba(7,44,104,.12);
      --radius:18px;
      --container:min(1180px,calc(100% - 40px));
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:#f8fbff;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:var(--container);margin:0 auto}
    .topbar{background:var(--deep);color:#c8d9f2;font-size:13px}
    .topbar-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar a{color:#fff}
    .topbar-right{display:flex;gap:22px;flex-wrap:wrap}
    .header{position:relative;z-index:30;background:#fff;border-bottom:1px solid #edf2f8}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--deep);white-space:nowrap}
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{list-style:none;display:flex;align-items:stretch;justify-content:center;gap:4px;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:25px 13px;color:#293a59;font-size:14px;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .has-arrow:after{content:"⌄";font-size:14px;color:#8ca0bc}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);visibility:hidden;opacity:0;pointer-events:none;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 16px 16px;transition:.2s;z-index:40}
    .nav-item:hover .dropdown-panel,.nav-item:focus-within .dropdown-panel,
    .nav-item:hover .mega-menu,.nav-item:focus-within .mega-menu{visibility:visible;opacity:1;pointer-events:auto}
    .dropdown-panel{width:310px;padding:16px}
    .dropdown-panel a{display:block;padding:10px 12px;border-radius:8px;font-size:14px}
    .dropdown-panel a:hover{background:var(--pale);color:var(--theme)}
    .mega-menu{width:min(850px,calc(100vw - 30px));padding:22px}
    .mega-menu:before,.dropdown-panel:before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px}
    .mega-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
    .mega-heading strong{font-size:16px;color:var(--deep)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .mega-card{display:flex;gap:10px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fbfdff}
    .mega-card:hover{border-color:#9fc8ef;transform:translateY(-2px)}
    .mega-card img{width:42px;height:42px;object-fit:contain;border-radius:8px}
    .mega-card b{display:block;font-size:13px;color:var(--deep)}
    .mega-card small{display:block;color:var(--muted);font-size:12px;line-height:1.45}
    .mega-footer{display:inline-block;margin-top:16px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .member-link{color:var(--theme);font-size:14px;font-weight:700}
    .open-account{background:var(--theme);color:#fff;padding:9px 15px;border-radius:8px;font-size:13px}
    .hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;background:var(--deep);margin:5px 0;transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(3,19,49,.48);z-index:80}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:-360px;width:min(350px,88vw);height:100vh;background:#fff;z-index:90;overflow:auto;transition:right .25s;box-shadow:-12px 0 35px rgba(0,0,0,.18)}
    .mobile-drawer.open{right:0}
    .drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line);color:var(--theme);font-weight:700}
    .drawer-head>a{margin-left:auto;color:var(--theme)}
    .drawer-close{border:0;background:none;font-size:27px;color:var(--muted);cursor:pointer}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf2f7;background:none;text-align:left;color:var(--ink);font-weight:600;cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:var(--theme)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:5px 12px;background:#f6faff}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;font-size:13px;color:var(--muted)}
    .hero{overflow:hidden}
    .hero-layout-36{position:relative;padding:84px 0 0;background:linear-gradient(180deg,#f6fbff 0%,#eaf6ff 100%);text-align:center}
    .hero-layout-36:before{content:"";position:absolute;width:560px;height:560px;left:-220px;top:-230px;border-radius:50%;background:rgba(67,164,232,.1)}
    .hero-kicker{position:relative;display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:2px}
    .hero-kicker:before{content:"";width:26px;height:2px;background:var(--wave)}
    .hero-layout-36 h1{position:relative;max-width:850px;margin:15px auto 12px;color:var(--deep);font-size:clamp(37px,5.5vw,72px);line-height:1.12;letter-spacing:-2px}
    .hero-layout-36 .hero-copy{position:relative;max-width:690px;margin:0 auto;color:var(--muted);font-size:17px}
    .hero-number{position:relative;display:flex;justify-content:center;align-items:baseline;gap:10px;margin:26px 0 14px;color:var(--theme)}
    .hero-number strong{font-size:clamp(42px,6vw,76px);line-height:1;font-weight:900;letter-spacing:-3px}
    .hero-number span{font-size:14px;color:var(--muted)}
    .wave-chart{position:relative;width:100%;height:270px;margin-top:42px;padding:0 max(20px,calc((100% - 1180px)/2));display:flex;align-items:flex-end;justify-content:space-between;gap:9px;background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(47,158,234,.13));border-top:1px solid rgba(47,158,234,.25)}
    .wave-chart:before{content:"";position:absolute;left:0;right:0;top:47%;border-top:1px dashed rgba(11,61,145,.22)}
    .wave-chart:after{content:"";position:absolute;left:0;right:0;bottom:0;height:90px;background:linear-gradient(0deg,rgba(11,61,145,.12),transparent);pointer-events:none}
    .bar-wrap{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:center;width:100%;height:100%}
    .bar{position:relative;width:clamp(18px,4vw,52px);height:var(--h);border-radius:10px 10px 0 0;background:linear-gradient(180deg,#58baf0,#1265b8);box-shadow:0 8px 18px rgba(23,105,194,.18)}
    .bar:nth-child(odd){background:linear-gradient(180deg,#8bd5f5,#2879c7)}
    .bar-label{position:absolute;top:-33px;left:50%;transform:translateX(-50%);white-space:nowrap;color:var(--deep);font-size:11px;font-weight:800}
    .bar-date{position:absolute;bottom:-28px;left:50%;transform:translateX(-50%);font-size:11px;color:#6f87a7}
    .hero-actions{position:relative;display:flex;justify-content:center;gap:12px;padding:50px 20px 58px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 23px;border-radius:8px;font-size:14px;font-weight:700;transition:.2s}
    .btn-primary{background:var(--theme);color:#fff;box-shadow:0 8px 18px rgba(11,61,145,.22)}
    .btn-primary:hover{background:#082e70;transform:translateY(-2px)}
    .btn-light{color:var(--theme);border:1px solid #a9cae9;background:#fff}
    .section{padding:78px 0}
    .section-heading{text-align:center;max-width:650px;margin:0 auto 34px}
    .section-heading .eyebrow{color:var(--theme);font-size:12px;font-weight:800;letter-spacing:2px}
    .section-heading h2{margin:7px 0 8px;color:var(--deep);font-size:32px;line-height:1.25}
    .section-heading p{margin:0;color:var(--muted)}
    .trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
    .trust-item{background:#fff;text-align:center;padding:20px}
    .trust-item strong{display:block;color:var(--theme);font-size:25px}
    .trust-item span{font-size:13px;color:var(--muted)}
    .feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 8px 25px rgba(12,65,120,.05)}
    .feature-card .icon{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:var(--pale);color:var(--theme);font-size:22px}
    .feature-card h3{margin:17px 0 6px;font-size:17px;color:var(--deep)}
    .feature-card p{margin:0;color:var(--muted);font-size:13px}
    .broker-grid,.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .broker-card,.video-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px}
    .broker-top{display:flex;align-items:center;gap:12px}
    .broker-top img{width:48px;height:48px;object-fit:contain;border-radius:10px;background:#f5f9fd}
    .broker-card h3,.video-card h3{margin:0;font-size:16px;color:var(--deep)}
    .broker-card p,.video-card p{font-size:13px;color:var(--muted);margin:10px 0}
    .rating{color:#ee9b18;font-size:13px}
    .data-list{display:flex;justify-content:space-between;border-top:1px solid #edf2f7;padding-top:12px;font-size:12px;color:var(--muted)}
    .article-layout{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
    .article-list{background:#fff;border:1px solid var(--line);border-radius:15px;padding:8px 22px}
    .article-item{display:grid;grid-template-columns:130px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid #edf2f7}
    .article-item:last-child{border-bottom:0}
    .article-item img{width:130px;height:84px;object-fit:cover;border-radius:9px}
    .article-item h3{font-size:15px;margin:0 0 5px;color:var(--deep)}
    .article-item p{font-size:12px;color:var(--muted);margin:0}
    .side-panel{background:var(--deep);border-radius:15px;padding:30px;color:#fff}
    .side-panel h3{font-size:22px;line-height:1.35;margin:0 0 12px}
    .side-panel p{color:#c9d8ef;font-size:14px}
    .side-panel .btn{margin-top:15px;background:#fff;color:var(--theme)}
    .faq{background:var(--pale)}
    .faq-list{max-width:850px;margin:auto;display:grid;gap:10px}
    .faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px}
    .faq summary{font-weight:700;color:var(--deep);cursor:pointer}
    .faq p{color:var(--muted);font-size:14px;margin:10px 0 0}
    .footer{background:#061737;color:#b8c9e1;padding:52px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:35px}
    .footer-brand{color:#fff;font-size:20px;font-weight:800}
    .footer h3{color:#fff;font-size:15px;margin:0 0 13px}
    .footer p,.footer a{font-size:13px;color:#b8c9e1}
    .footer a{display:block;margin:6px 0}
    .footer a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:16px;text-align:center;font-size:12px;color:#8195b3}
    @media(max-width:1050px){
      .main-nav{display:none}.hamburger{display:block}.header-btns{margin-left:auto}
      .feature-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:720px){
      .container{width:calc(100% - 28px)}
      .topbar-inner{padding:7px 0;display:block;text-align:center}.topbar-right{justify-content:center;margin-top:2px;gap:12px}
      .header-inner{min-height:65px}.open-account{display:none}
      .hero-layout-36{padding-top:58px}.hero-layout-36 h1{letter-spacing:-1px}.hero-layout-36 .hero-copy{font-size:14px;padding:0 10px}
      .hero-number{margin-top:22px}.wave-chart{height:210px;gap:4px;padding:0 10px}.bar{width:clamp(10px,5vw,25px)}.bar-label{font-size:9px;top:-27px}.bar-date{font-size:9px}
      .hero-actions{padding:42px 14px 45px;flex-wrap:wrap}.btn{min-height:42px;padding:0 16px}
      .section{padding:54px 0}.section-heading h2{font-size:26px}
      .trust-strip{grid-template-columns:repeat(2,1fr)}.feature-grid,.broker-grid,.video-grid{grid-template-columns:1fr 1fr}
      .article-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}
    }
    @media(max-width:480px){
      .feature-grid,.broker-grid,.video-grid{grid-template-columns:1fr}
      .article-item{grid-template-columns:95px 1fr;gap:12px}.article-item img{width:95px;height:72px}
      .footer-grid{grid-template-columns:1fr}.hero-layout-36 h1{font-size:38px}
    }