/* roulang page: index */
:root{--bg:#0A0E13;--s1:#111820;--s2:#1A2230;--mc:#00E39C;--mb:#25FFB3;--pur:#7B6CFF;--t1:#F5F7FA;--t2:#9AA6B8;--t3:#5C6773;--bd:rgba(255,255,255,.07);--bdm:rgba(0,227,156,.15);--r-lg:22px;--r-md:16px;--r-sm:10px;--sh:0 8px 30px rgba(0,0,0,.35);--shg:0 0 0 1px rgba(0,227,156,.15),0 16px 40px rgba(0,227,156,.08);--f:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif}
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:var(--f);background:var(--bg);color:var(--t1);line-height:1.8;font-size:15.5px;overflow-x:hidden;-webkit-font-smoothing:antialiased}
    a{text-decoration:none;color:inherit;transition:all .25s ease}
    img{max-width:100%;display:block}
    .container{max-width:1280px}
    :focus-visible{outline:2px solid var(--mc);outline-offset:2px;border-radius:4px}
    /* ===== NAV ===== */
    .site-nav{position:fixed;top:0;left:0;right:0;z-index:1000;height:72px;background:rgba(10,14,19,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--bd);transition:all .3s ease}
    .site-nav::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,transparent,rgba(0,227,156,.4),transparent);opacity:.7}
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
    .brand{font-size:20px;font-weight:800;color:var(--t1);letter-spacing:.02em;display:flex;align-items:center;gap:10px;white-space:nowrap}
    .brand i{color:var(--mc);font-size:24px}
    .nav-menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
    .nav-menu .nav-link{position:relative;color:rgba(245,247,250,.72);font-size:15px;font-weight:500;padding:8px 14px;border-radius:var(--r-sm);transition:all .25s ease}
    .nav-menu .nav-link::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;background:var(--mc);transform:translateX(-50%);transition:all .3s ease;box-shadow:0 0 8px var(--mc)}
    .nav-menu .nav-link:hover{color:var(--t1)}
    .nav-menu .nav-link:hover::after{width:70%}
    .nav-menu .nav-link.active{color:var(--mc)}
    .nav-menu .nav-link.active::after{width:100%;box-shadow:0 0 12px var(--mc)}
    .nav-cta{background:var(--mc);color:#0A0E13;font-weight:600;font-size:14px;padding:10px 22px;border-radius:var(--r-sm);border:none;transition:all .3s ease;box-shadow:0 0 0 rgba(0,227,156,0)}
    .nav-cta:hover{background:var(--mb);color:#0A0E13;box-shadow:0 0 20px rgba(0,227,156,.35);transform:translateY(-1px)}
    .nav-cta:active{transform:translateY(1px)}
    .nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;z-index:1002}
    .nav-toggle span{display:block;width:24px;height:2px;background:var(--t1);margin:5px 0;transition:all .3s ease;border-radius:2px}
    .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .nav-toggle.open span:nth-child(2){opacity:0}
    .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    @media(max-width:991px){.nav-toggle{display:block}.nav-menu{position:fixed;top:0;right:-100%;width:78%;max-width:420px;height:100vh;background:rgba(10,14,19,.98);flex-direction:column;align-items:flex-start;justify-content:flex-start;padding:100px 32px 40px;gap:0;transition:right .4s cubic-bezier(.77,0,.18,1);backdrop-filter:blur(20px);z-index:999;border-left:1px solid var(--bd)}.nav-menu.open{right:0}.nav-menu .nav-link{font-size:22px;padding:16px 0;width:100%;border-bottom:1px solid rgba(255,255,255,.05)}.nav-menu .nav-link::after{display:none}.nav-menu .nav-link.active{color:var(--mc)}.nav-cta{display:none}}
    /* ===== HERO ===== */
    .hero{position:relative;min-height:92vh;display:flex;align-items:center;padding:120px 0 60px;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat fixed;overflow:hidden}
    .hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,14,19,.96) 30%,rgba(10,14,19,.78) 65%,rgba(10,14,19,.55));z-index:1}
    .hero::after{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 80% 30%,rgba(0,227,156,.08),transparent);z-index:1}
    .hero .container{position:relative;z-index:2}
    .hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(0,227,156,.08);border:1px solid var(--bdm);color:var(--mc);font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;margin-bottom:24px;animation:fadeUp .6s .08s both}
    .hero-title{font-size:clamp(38px,6.5vw,64px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:20px;animation:fadeUp .6s .16s both}
    .hero-title .accent{color:var(--mc);position:relative}
    .hero-sub{font-size:clamp(15px,1.6vw,18px);color:var(--t2);max-width:520px;margin-bottom:30px;line-height:1.8;animation:fadeUp .6s .24s both}
    .hero-ctas{display:flex;gap:14px;margin-bottom:36px;flex-wrap:wrap;animation:fadeUp .6s .32s both}
    .btn-mc{background:var(--mc);color:#0A0E13;font-weight:600;padding:14px 30px;border-radius:12px;border:none;display:inline-flex;align-items:center;gap:8px;transition:all .3s ease;font-size:15.5px}
    .btn-mc:hover{background:var(--mb);color:#0A0E13;box-shadow:0 0 28px rgba(0,227,156,.4);transform:translateY(-2px)}
    .btn-mc:active{transform:translateY(0)}
    .btn-ghost{background:transparent;border:1px solid rgba(0,227,156,.5);color:var(--mc);font-weight:600;padding:14px 30px;border-radius:12px;display:inline-flex;align-items:center;gap:8px;transition:all .3s ease;font-size:15.5px}
    .btn-ghost:hover{background:rgba(0,227,156,.08);border-color:var(--mc);color:var(--mb);transform:translateY(-2px)}
    .hero-badges{display:flex;gap:10px;flex-wrap:wrap;animation:fadeUp .6s .4s both}
    .badge-item{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--t2);border:1px solid rgba(255,255,255,.08);padding:5px 14px;border-radius:999px;background:rgba(255,255,255,.02)}
    .badge-item i{color:var(--mc);font-size:14px}
    @keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
    @keyframes breathe{0%,100%{opacity:.5}50%{opacity:1}}
    .hero-glow{position:absolute;bottom:8%;right:5%;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(123,108,255,.14),transparent 70%);animation:breathe 4s ease-in-out infinite;pointer-events:none;z-index:1}
    @media(max-width:767px){.hero{background-attachment:scroll;padding:96px 0 48px;min-height:auto}.hero-title{font-size:clamp(30px,9vw,42px)}.hero-sub{font-size:15px}}
    /* ===== SECTION COMMON ===== */
    .section{padding:88px 0}
    .section-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--mc);background:rgba(0,227,156,.06);border:1px solid var(--bdm);padding:4px 14px;border-radius:999px;margin-bottom:14px}
    .section-title{font-size:clamp(26px,3.6vw,40px);font-weight:700;line-height:1.25;letter-spacing:-.01em;margin-bottom:12px;color:var(--t1)}
    .section-title::after{content:"";display:block;width:60px;height:3px;background:linear-gradient(90deg,var(--mc),transparent);border-radius:2px;margin-top:14px}
    .section-title.center::after{margin-left:auto;margin-right:auto}
    .section-sub{color:var(--t2);font-size:15.5px;max-width:640px;line-height:1.8;margin-bottom:0}
    .section-head{margin-bottom:56px}
    .section-head.center{text-align:center}
    .section-head.center .section-sub{margin:0 auto}
    @media(max-width:767px){.section{padding:56px 0}.section-head{margin-bottom:36px}}
    /* ===== FEATURES ===== */
    .features{background:var(--bg);position:relative}
    .feature-card{background:var(--s1);border:1px solid var(--bd);border-radius:var(--r-lg);padding:36px 32px;position:relative;overflow:hidden;transition:all .35s ease;height:100%}
    .feature-card:hover{border-color:var(--bdm);box-shadow:var(--shg);transform:translateY(-4px)}
    .feature-main{background:linear-gradient(135deg,var(--s1) 60%,rgba(0,227,156,.04));padding-left:40px;padding-right:40px;min-height:320px}
    .feature-main .feature-img{position:absolute;right:0;bottom:0;width:55%;height:70%;object-fit:cover;border-radius:var(--r-md) 0 0 0;opacity:.35;border-left:1px solid var(--bdm)}
    .feature-num{position:absolute;top:20px;right:26px;font-size:48px;font-weight:200;color:rgba(255,255,255,.06);letter-spacing:-.02em;line-height:1}
    .feature-icon{width:52px;height:52px;border-radius:14px;background:rgba(0,227,156,.1);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:24px;color:var(--mc);border:1px solid var(--bdm);transition:all .3s ease}
    .feature-card:hover .feature-icon{background:var(--mc);color:#0A0E13;box-shadow:0 0 20px rgba(0,227,156,.3)}
    .feature-card h3{font-size:19px;font-weight:600;margin-bottom:12px;color:var(--t1)}
    .feature-card p{color:var(--t2);font-size:14.5px;line-height:1.75;margin-bottom:0}
    .feature-sub{padding:28px 28px 28px 32px}
    .feature-sub+.feature-sub{margin-top:20px}
    /* ===== HOWTO ===== */
    .howto{background:var(--s1);border-top:1px solid var(--bd);border-bottom:1px solid var(--bd)}
    .howto-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
    .step-item{position:relative;padding:0 0 36px 32px;border-left:1px solid rgba(255,255,255,.12)}
    .step-item:last-child{border-left-color:transparent;padding-bottom:0}
    .step-dot{position:absolute;left:-9px;top:0;width:17px;height:17px;border-radius:50%;background:var(--mc);box-shadow:0 0 12px rgba(0,227,156,.5);border:3px solid var(--s1)}
    .step-num{font-size:13px;color:var(--mc);font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}
    .step-item h3{font-size:18px;font-weight:600;color:var(--t1);margin-bottom:6px}
    .step-item p{color:var(--t2);font-size:14.5px;line-height:1.7;margin:0}
    .howto-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--bdm);box-shadow:0 0 30px rgba(0,227,156,.06)}
    .howto-visual img{width:100%;height:360px;object-fit:cover}
    .howto-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(10,14,19,.6),transparent 50%)}
    .howto-panel{position:absolute;left:20px;right:20px;bottom:20px;background:rgba(10,14,19,.88);backdrop-filter:blur(12px);border:1px solid var(--bd);border-radius:var(--r-md);padding:18px 24px;z-index:2}
    .howto-panel .panel-label{font-size:12px;color:var(--t3);letter-spacing:.04em;text-transform:uppercase;margin-bottom:4px}
    .howto-panel .panel-text{font-size:15px;color:var(--t1);font-weight:500}
    .howto-panel .panel-text i{color:var(--mc);margin-right:6px}
    @media(max-width:991px){.howto-grid{grid-template-columns:1fr;gap:40px}.howto-visual img{height:280px}}
    /* ===== NEWS ===== */
    .news{background:var(--bg)}
    .news-card{background:var(--s1);border:1px solid var(--bd);border-radius:var(--r-md);padding:28px 26px;transition:all .3s ease;height:100%;position:relative;overflow:hidden}
    .news-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--mc);transform:scaleY(0);transform-origin:center;transition:transform .35s ease;box-shadow:0 0 10px var(--mc)}
    .news-card:hover{transform:translateY(-4px);background:var(--s2);border-color:var(--bdm)}
    .news-card:hover::before{transform:scaleY(1)}
    .news-meta{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
    .news-cat{background:rgba(123,108,255,.12);color:var(--pur);font-size:12px;font-weight:600;padding:3px 12px;border-radius:999px;border:1px solid rgba(123,108,255,.2)}
    .news-date{color:var(--t3);font-size:12.5px;display:flex;align-items:center;gap:4px}
    .news-title{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;color:var(--t1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .news-title a:hover{color:var(--mc)}
    .news-summary{color:var(--t2);font-size:14px;line-height:1.7;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .news-link{color:var(--mc);font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;transition:gap .3s ease}
    .news-link:hover{color:var(--mb);gap:10px}
    .empty-state{border:1px dashed var(--bd);border-radius:var(--r-md);padding:48px 24px;text-align:center;color:var(--t3);background:rgba(255,255,255,.01)}
    .empty-state i{font-size:32px;margin-bottom:8px;color:var(--t3)}
    .empty-state p{margin:0;font-size:14.5px}
    @media(max-width:991px){.news-card{padding:22px 20px}}
    /* ===== SOCIAL ===== */
    .social{background:var(--s1);border-top:1px solid var(--bd);border-bottom:1px solid var(--bd)}
    .stats-row{border-top:1px solid var(--bd);border-bottom:1px solid var(--bd);padding:40px 0;margin-bottom:56px}
    .stat-cell{text-align:center;padding:12px 0}
    .stat-cell+.stat-cell{border-left:1px solid var(--bd)}
    .stat-num{font-size:clamp(34px,4vw,52px);font-weight:800;color:var(--mc);line-height:1.1;letter-spacing:-.02em;position:relative}
    .stat-label{color:var(--t2);font-size:14px;margin-top:6px;font-weight:400}
    .testimonial-card{background:transparent;border:1px solid var(--bd);border-radius:var(--r-lg);padding:34px 32px;position:relative;transition:all .3s ease;height:100%}
    .testimonial-card:hover{border-color:var(--bdm);background:rgba(17,24,32,.6)}
    .testimonial-card .quote{position:absolute;top:16px;right:24px;font-size:64px;color:rgba(0,227,156,.1);line-height:1;font-family:Georgia,serif}
    .stars{color:var(--pur);font-size:15px;margin-bottom:16px;letter-spacing:2px}
    .testimonial-text{color:var(--t2);font-size:14.5px;line-height:1.8;margin-bottom:24px;font-style:normal}
    .testimonial-author{display:flex;align-items:center;gap:12px}
    .author-avatar{width:40px;height:40px;border-radius:50%;background:rgba(123,108,255,.18);color:var(--pur);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;border:1px solid rgba(123,108,255,.3)}
    .author-name{font-size:14px;font-weight:600;color:var(--t1)}
    .author-role{font-size:12.5px;color:var(--t3)}
    @media(max-width:767px){.stat-cell+.stat-cell{border-left:none}.stats-row .col-6:nth-child(odd){border-right:1px solid var(--bd)}}
    /* ===== FAQ ===== */
    .faq{padding:88px 0}
    .faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:40px}
    .faq-sidebar .section-tag{margin-bottom:12px}
    .faq-sidebar .section-title{font-size:clamp(22px,2.6vw,30px);margin-bottom:16px}
    .faq-sidebar p{color:var(--t2);font-size:14.5px;line-height:1.75}
    .faq-accordion .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--bd);border-radius:0!important}
    .faq-accordion .accordion-button{background:transparent;color:var(--t1);font-size:16px;font-weight:600;padding:22px 0;box-shadow:none;position:relative;transition:color .25s}
    .faq-accordion .accordion-button::after{content:"+";background:none;font-size:22px;color:var(--mc);transform:none;width:auto;height:auto;font-weight:300}
    .faq-accordion .accordion-button:not(.collapsed){color:var(--mc);background:transparent;box-shadow:none}
    .faq-accordion .accordion-button:not(.collapsed)::after{content:"−";transform:none}
    .faq-accordion .accordion-button:hover{color:var(--mc)}
    .faq-accordion .accordion-body{padding:0 40px 22px 0;color:var(--t2);font-size:15px;line-height:1.8}
    @media(max-width:991px){.faq-layout{grid-template-columns:1fr;gap:24px}}
    /* ===== CTA BOTTOM ===== */
    .bottom-cta{position:relative;padding:96px 0;background:var(--s1);border-top:1px solid var(--bd);overflow:hidden;text-align:center}
    .bottom-cta::before{content:"";position:absolute;left:50%;top:50%;width:600px;height:300px;transform:translate(-50%,-50%);background:radial-gradient(ellipse,rgba(0,227,156,.1),transparent 70%);pointer-events:none}
    .bottom-cta .cta-title{font-size:clamp(24px,3.4vw,38px);font-weight:700;margin-bottom:16px;position:relative;z-index:2}
    .bottom-cta .cta-sub{color:var(--t2);font-size:15.5px;max-width:500px;margin:0 auto 32px;position:relative;z-index:2}
    .bottom-cta .btn-mc{position:relative;z-index:2}
    /* ===== FOOTER ===== */
    .footer{background:#070A0E;border-top:1px solid var(--bd);padding:64px 0 0}
    .footer-brand{font-size:19px;font-weight:800;color:var(--t1);margin-bottom:14px;display:flex;align-items:center;gap:8px}
    .footer-brand i{color:var(--mc);font-size:22px}
    .footer-desc{color:var(--t3);font-size:14px;line-height:1.75;max-width:280px;margin-bottom:22px}
    .footer-social{display:flex;gap:10px}
    .footer-social a{width:34px;height:34px;border-radius:50%;border:1px solid var(--bd);display:flex;align-items:center;justify-content:center;color:var(--t2);font-size:15px;transition:all .25s ease}
    .footer-social a:hover{color:var(--mc);border-color:var(--mc);box-shadow:0 0 12px rgba(0,227,156,.2)}
    .footer-col h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:18px;letter-spacing:.03em}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin-bottom:10px}
    .footer-links a{color:var(--t2);font-size:14px;line-height:1.6}
    .footer-links a:hover{color:var(--mc)}
    .footer-contact{list-style:none;padding:0;margin:0}
    .footer-contact li{color:var(--t2);font-size:14px;margin-bottom:10px;display:flex;align-items:flex-start;gap:8px}
    .footer-contact li i{color:var(--mc);margin-top:3px}
    .footer-bottom{border-top:1px solid var(--bd);padding:20px 0;margin-top:48px;color:var(--t3);font-size:12.5px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
    .footer-bottom a{color:var(--t2)}
    @media(max-width:767px){.footer{padding:48px 0 0}.footer-bottom{flex-direction:column;text-align:center}}
    /* ===== STICKY CTA ===== */
    .sticky-cta{position:fixed;left:0;right:0;bottom:0;background:rgba(10,14,19,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--bd);padding:14px 24px;z-index:900;transform:translateY(110%);transition:transform .4s cubic-bezier(.22,1,.36,1)}
    .sticky-cta.show{transform:translateY(0)}
    .sticky-cta-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .sticky-text{color:var(--t1);font-size:14.5px;font-weight:500;display:flex;align-items:center;gap:8px}
    .sticky-text i{color:var(--mc);font-size:16px}
    .sticky-cta .btn-mc{padding:10px 22px;font-size:14px;white-space:nowrap}
    @media(max-width:767px){.sticky-cta{padding:12px 16px}.sticky-text{font-size:13px}.sticky-text span{max-width:55%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}
    /* ===== REVEAL ===== */
    .reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
    .reveal.revealed{opacity:1;transform:translateY(0)}
    @media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.hero-title,.hero-sub,.hero-ctas,.hero-badges,.hero-eyebrow{animation:none}}

/* roulang page: article */
/* ============ Design Variables ============ */
        :root {
            --bg-primary: #0A0E13;
            --bg-surface: #111820;
            --bg-surface-2: #1A2230;
            --bg-footer: #070A0E;
            --accent: #00E39C;
            --accent-hover: #25FFB3;
            --accent-glow: rgba(0, 227, 156, 0.35);
            --accent-soft: rgba(0, 227, 156, 0.08);
            --accent-border: rgba(0, 227, 156, 0.35);
            --purple: #7B6CFF;
            --amber: #FFB24C;
            --text-main: #F5F7FA;
            --text-secondary: #9AA6B8;
            --text-muted: #5C6773;
            --border: rgba(255, 255, 255, 0.06);
            --border-light: rgba(255, 255, 255, 0.07);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 0 0 1px rgba(0, 227, 156, 0.15), 0 16px 40px rgba(0, 227, 156, 0.08);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        /* ============ Reset & Base ============ */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--accent-hover);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button, input, select, textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* ============ Navbar ============ */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            background: rgba(10, 14, 19, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            z-index: 1050;
        }
        .site-nav::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 227, 156, 0.4), transparent);
            pointer-events: none;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: color 0.25s ease;
        }
        .brand i {
            color: var(--accent);
            font-size: 24px;
        }
        .brand:hover {
            color: var(--accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu .nav-link {
            position: relative;
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(245, 247, 250, 0.7);
            border-radius: 8px;
            transition: color 0.25s ease, background 0.25s ease;
            white-space: nowrap;
        }
        .nav-menu .nav-link::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transform: translateX(-50%);
            transition: width 0.3s ease;
        }
        .nav-menu .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-menu .nav-link:hover::after {
            width: 60%;
        }
        .nav-menu .nav-link.active {
            color: var(--accent);
            font-weight: 600;
        }
        .nav-menu .nav-link.active::after {
            width: 80%;
            box-shadow: 0 0 8px rgba(0, 227, 156, 0.5);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--accent);
            color: #0A0E13;
            font-size: 14px;
            font-weight: 700;
            border-radius: 10px;
            border: 1px solid var(--accent);
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            color: #0A0E13;
            box-shadow: 0 0 20px var(--accent-glow);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-main);
            margin: 5px 0;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        /* ============ Breadcrumb ============ */
        .breadcrumb-section {
            padding-top: 120px;
            padding-bottom: 12px;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .breadcrumb-nav .sep {
            margin: 0 10px;
            color: rgba(255, 255, 255, 0.3);
        }
        .breadcrumb-nav .current {
            color: var(--text-secondary);
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ============ Article Header ============ */
        .article-header {
            padding: 32px 0 40px;
            border-bottom: 1px solid var(--border-light);
        }
        .article-header .article-title {
            font-size: clamp(28px, 4.4vw, 44px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-main);
            max-width: 900px;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .article-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta-item i {
            color: var(--accent);
            font-size: 14px;
        }
        .article-meta-item .badge-cat {
            display: inline-block;
            padding: 3px 12px;
            background: rgba(123, 108, 255, 0.15);
            color: #A79BFF;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
        }

        /* ============ Article Body ============ */
        .article-wrapper {
            padding: 48px 0 64px;
        }
        .article-body {
            max-width: 860px;
            margin: 0 auto;
        }
        .article-body p {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(245, 247, 250, 0.85);
            margin-bottom: 24px;
        }
        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-main);
            margin: 44px 0 18px;
            line-height: 1.3;
            position: relative;
            padding-left: 16px;
        }
        .article-body h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 3px;
            background: var(--accent);
            border-radius: 3px;
            box-shadow: 0 0 10px rgba(0, 227, 156, 0.3);
        }
        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            margin: 32px 0 14px;
            line-height: 1.4;
        }
        .article-body ul,
        .article-body ol {
            font-size: 16px;
            color: rgba(245, 247, 250, 0.82);
            padding-left: 24px;
            margin-bottom: 24px;
            line-height: 1.8;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body li::marker {
            color: var(--accent);
        }
        .article-body blockquote {
            position: relative;
            margin: 32px 0;
            padding: 20px 24px;
            background: var(--bg-surface);
            border-radius: 14px;
            border-left: 3px solid var(--accent);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .article-body blockquote p {
            margin-bottom: 0;
            color: var(--text-secondary);
        }
        .article-body img {
            border-radius: 16px;
            margin: 28px 0;
            border: 1px solid var(--border);
        }
        .article-body code {
            background: rgba(0, 227, 156, 0.08);
            color: var(--accent);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 14px;
        }
        .article-body pre {
            background: #0D131B;
            padding: 24px;
            border-radius: 14px;
            overflow-x: auto;
            border: 1px solid var(--border);
            margin: 28px 0;
        }
        .article-body pre code {
            background: none;
            color: var(--text-main);
            padding: 0;
        }
        .article-body table {
            width: 100%;
            margin: 28px 0;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--bg-surface);
            border-radius: 14px;
            overflow: hidden;
            font-size: 15px;
        }
        .article-body table th,
        .article-body table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border);
            color: rgba(245, 247, 250, 0.85);
        }
        .article-body table th {
            background: var(--bg-surface-2);
            font-weight: 600;
            color: var(--text-main);
        }
        .article-body table tr:last-child td {
            border-bottom: none;
        }

        /* ============ Not Found ============ */
        .article-not-found {
            max-width: 620px;
            margin: 60px auto;
            text-align: center;
            padding: 60px 32px;
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            border: 1px dashed rgba(255, 255, 255, 0.12);
        }
        .article-not-found i {
            font-size: 48px;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }
        .article-not-found h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ============ Article Tags & Footer Nav ============ */
        .article-tags {
            max-width: 860px;
            margin: 0 auto 40px;
            padding-top: 32px;
            border-top: 1px solid var(--border-light);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }
        .article-tags .tag-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            margin-right: 6px;
        }
        .tag-item {
            display: inline-block;
            padding: 6px 14px;
            background: var(--bg-surface);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            transition: all 0.25s ease;
        }
        .tag-item:hover {
            color: var(--accent);
            border-color: var(--accent-border);
            background: var(--accent-soft);
        }
        .article-bottom-nav {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding: 20px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .btn-back-list {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.25s ease;
        }
        .btn-back-list:hover {
            color: var(--accent);
            border-color: var(--accent-border);
            background: var(--accent-soft);
        }
        .article-prev-next {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-prev-next a {
            font-size: 14px;
            color: var(--text-secondary);
            padding: 8px 14px;
            border-radius: 8px;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }
        .article-prev-next a:hover {
            color: var(--accent);
            background: var(--accent-soft);
        }

        /* ============ Related Section ============ */
        .related-section {
            padding: 80px 0;
            background: var(--bg-primary);
        }
        .related-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 36px;
        }
        .related-header h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }
        .related-header .section-line {
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
            margin-top: 10px;
            box-shadow: 0 0 10px rgba(0, 227, 156, 0.4);
        }
        .related-header .related-more {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .related-header .related-more:hover {
            color: var(--accent);
        }
        .related-card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            height: 100%;
            display: block;
            color: inherit;
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 227, 156, 0.2);
            box-shadow: var(--shadow-hover);
            color: inherit;
        }
        .related-card .cover {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .related-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .cover img {
            transform: scale(1.04);
        }
        .related-card .cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 19, 0) 50%, rgba(10, 14, 19, 0.6) 100%);
        }
        .related-card .card-body-pad {
            padding: 24px;
        }
        .related-card .badge {
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
            display: inline-block;
        }
        .related-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.45;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .related-card .meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* ============ CTA Section ============ */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #0D141C 0%, #111820 60%, #0D141C 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(0, 227, 156, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: clamp(26px, 3.6vw, 38px);
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .btn-mc {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--accent);
            color: #0A0E13;
            font-size: 15px;
            font-weight: 700;
            border-radius: 12px;
            border: 1px solid var(--accent);
            transition: all 0.3s ease;
        }
        .btn-mc:hover {
            background: var(--accent-hover);
            color: #0A0E13;
            box-shadow: 0 0 24px var(--accent-glow);
            transform: translateY(-2px);
        }
        .btn-mc:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-outline-mc {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: var(--accent);
            font-size: 15px;
            font-weight: 600;
            border-radius: 12px;
            border: 1px solid var(--accent-border);
            transition: all 0.3s ease;
        }
        .btn-outline-mc:hover {
            background: var(--accent-soft);
            color: var(--accent-hover);
            border-color: var(--accent);
        }

        /* ============ Footer ============ */
        .footer {
            background: var(--bg-footer);
            padding: 60px 0 0;
            border-top: 1px solid var(--border);
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-brand i {
            color: var(--accent);
            font-size: 22px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--bg-surface);
            color: var(--text-secondary);
            font-size: 15px;
            transition: all 0.25s ease;
        }
        .footer-social a:hover {
            background: var(--accent-soft);
            color: var(--accent);
            border-color: var(--accent-border);
        }
        .footer h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.25s ease;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .footer-contact li i {
            color: var(--accent);
            font-size: 14px;
        }
        .footer-bottom {
            margin-top: 40px;
            padding: 20px 0;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ============ Bottom Bar ============ */
        .bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 64px;
            background: rgba(10, 14, 19, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-light);
            z-index: 1040;
            display: flex;
            align-items: center;
            transform: translateY(100%);
            transition: transform 0.35s ease, opacity 0.35s ease;
            opacity: 0;
        }
        .bottom-bar.show {
            transform: translateY(0);
            opacity: 1;
        }
        .bottom-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .bottom-bar .bb-text {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(245, 247, 250, 0.85);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .bottom-bar .bb-text i {
            color: var(--accent);
            font-size: 16px;
            flex-shrink: 0;
        }
        .bottom-bar .btn-mc {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
            flex-shrink: 0;
        }
        body {
            padding-bottom: 64px;
        }

        /* ============ Responsive ============ */
        @media (max-width: 1199px) {
            .nav-menu .nav-link {
                padding: 10px 10px;
                font-size: 14px;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }
        }
        @media (max-width: 991px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
            .nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #0A0E13;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                max-height: calc(100vh - 72px);
                overflow-y: auto;
                display: none;
            }
            .nav-menu.open {
                transform: translateY(0);
                display: flex;
            }
            .nav-menu .nav-link {
                padding: 14px 12px;
                font-size: 16px;
                border-radius: 10px;
            }
            .nav-menu .nav-link::after {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
                margin-left: auto;
            }
            .nav-toggle.open span:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }
            .nav-toggle.open span:nth-child(2) {
                opacity: 0;
            }
            .nav-toggle.open span:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }
            .article-title {
                font-size: 28px !important;
            }
            .bottom-bar .bb-text {
                font-size: 13px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-nav {
                height: 64px;
            }
            .nav-wrap {
                height: 64px;
            }
            .breadcrumb-section {
                padding-top: 100px;
            }
            .article-header {
                padding: 24px 0 32px;
            }
            .article-header .article-title {
                font-size: 24px !important;
                line-height: 1.3;
            }
            .article-meta {
                gap: 12px;
                font-size: 12px;
            }
            .article-body p {
                font-size: 15px;
                line-height: 1.85;
            }
            .article-body h2 {
                font-size: 22px;
            }
            .article-topics {
                padding: 56px 0;
            }
            .related-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .bottom-bar {
                height: 58px;
            }
            .bottom-bar .bb-text {
                max-width: 55%;
            }
            .bottom-bar .btn-mc {
                padding: 6px 12px;
                font-size: 12px;
                max-width: 40%;
                white-space: nowrap;
            }
            .article-bottom-nav {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .breadcrumb-nav .current {
                max-width: 140px;
            }
            .related-card .cover {
                height: 160px;
            }
        }

/* roulang page: category1 */
:root {
    --bg-primary: #0A0E13;
    --bg-surface: #111820;
    --bg-surface-2: #1A2230;
    --bg-footer: #070A0E;
    --accent: #00E39C;
    --accent-hover: #25FFB3;
    --accent-dim: rgba(0, 227, 156, 0.15);
    --accent-glow: rgba(0, 227, 156, 0.35);
    --purple: #7B6CFF;
    --purple-dim: rgba(123, 108, 255, 0.12);
    --amber: #FFB24C;
    --text-primary: #F5F7FA;
    --text-secondary: #9AA6B8;
    --text-muted: #5C6773;
    --border-color: rgba(255, 255, 255, 0.07);
    --border-strong: rgba(255, 255, 255, 0.12);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --shadow-base: 0 8px 30px rgba(0, 0, 0, 0.35);
    --shadow-accent: 0 0 0 1px rgba(0, 227, 156, 0.15), 0 16px 40px rgba(0, 227, 156, 0.08);
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
*,
*::before,
*::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 15.5px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.25s ease;
}
a:hover {
    color: var(--accent-hover);
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.container {
    max-width: 1280px;
    padding-left: 32px;
    padding-right: 32px;
}
@media (max-width: 767px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
}
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        padding-left: 24px;
        padding-right: 24px;
    }
}

/* ===== NAVIGATION ===== */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1050;
    background: rgba(10, 14, 19, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}
.site-nav::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(0, 227, 156, 0.5), transparent);
    pointer-events: none;
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
    position: relative;
}
.brand {
    font-size: 21px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.01em;
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}
.brand i {
    font-size: 26px;
    color: var(--accent);
    filter: drop-shadow(0 0 8px rgba(0, 227, 156, 0.4));
}
.brand:hover {
    color: var(--accent-hover);
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-menu .nav-link {
    display: inline-block;
    padding: 8px 14px;
    font-size: 15px;
    font-weight: 500;
    color: rgba(245, 247, 250, 0.72);
    border-radius: 8px;
    transition: color 0.25s, background 0.25s, text-shadow 0.25s;
    position: relative;
    letter-spacing: 0.02em;
}
.nav-menu .nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.04);
}
.nav-menu .nav-link.active {
    color: var(--accent);
    font-weight: 600;
    text-shadow: 0 0 14px rgba(0, 227, 156, 0.35);
    background: rgba(0, 227, 156, 0.06);
}
.nav-menu .nav-link.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 32px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(0, 227, 156, 0.6);
}
.nav-cta {
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 700;
    border-radius: 10px;
    background: var(--accent);
    color: #0A0E13;
    border: none;
    white-space: nowrap;
    transition: background 0.25s, box-shadow 0.25s, transform 0.15s;
    display: inline-block;
}
.nav-cta:hover {
    background: var(--accent-hover);
    color: #0A0E13;
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-1px);
}
.nav-cta:active {
    transform: translateY(1px);
}
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    position: relative;
    z-index: 1060;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px auto;
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}
@media (max-width: 991px) {
    .nav-toggle {
        display: block;
    }
    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: min(320px, 82vw);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        background: rgba(7, 10, 14, 0.98);
        backdrop-filter: blur(20px);
        padding: 100px 32px 40px;
        gap: 8px;
        transform: translateX(100%);
        transition: transform 0.35s ease;
        box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
        overflow-y: auto;
        border-left: 1px solid var(--border-color);
    }
    .nav-menu.open {
        transform: translateX(0);
    }
    .nav-menu .nav-link {
        width: 100%;
        font-size: 20px;
        padding: 14px 10px;
        border-radius: 10px;
    }
    .nav-menu .nav-link.active::after {
        left: 10px;
        width: 3px;
        height: 22px;
        bottom: auto;
        top: 50%;
        transform: translateY(-50%);
        border-radius: 3px;
    }
    .nav-cta {
        margin-left: auto;
        margin-right: 46px;
    }
}
@media (max-width: 575px) {
    .nav-cta {
        display: none;
    }
    .nav-wrap {
        height: 66px;
    }
    .brand {
        font-size: 18px;
    }
    .brand i {
        font-size: 22px;
    }
}

/* ===== PAGE HERO ===== */
.page-hero {
    position: relative;
    min-height: 380px;
    display: flex;
    align-items: center;
    padding: 120px 0 70px;
    background: linear-gradient(135deg, rgba(10, 14, 19, 0.96) 0%, rgba(10, 14, 19, 0.82) 60%, rgba(17, 24, 32, 0.75) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
    border-bottom: 1px solid var(--border-color);
}
.page-hero .hero-inner {
    position: relative;
    z-index: 2;
}
.crumb {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.crumb a {
    color: var(--text-secondary);
    transition: color 0.2s;
}
.crumb a:hover {
    color: var(--accent);
}
.crumb .sep {
    color: var(--text-muted);
}
.crumb .current {
    color: var(--accent);
    font-weight: 500;
}
.page-hero h1 {
    font-size: clamp(34px, 5.4vw, 52px);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin: 0 0 16px;
    color: var(--text-primary);
}
.page-hero h1 .text-accent {
    color: var(--accent);
    text-shadow: 0 0 24px rgba(0, 227, 156, 0.3);
}
.page-hero .lead {
    font-size: 16.5px;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 0 24px;
    line-height: 1.8;
}
.hero-badges {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.hero-badges .badge-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    padding: 5px 14px;
    letter-spacing: 0.02em;
}
.hero-badges .badge-item i {
    color: var(--accent);
    font-size: 14px;
}
@media (max-width: 767px) {
    .page-hero {
        min-height: 340px;
        padding: 96px 0 48px;
    }
}

/* ===== SECTION BASE ===== */
.section {
    padding: 92px 0;
}
.section-sm {
    padding: 64px 0;
}
.section-header {
    margin-bottom: 48px;
}
.section-header .tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-dim);
    border-radius: 999px;
    padding: 4px 14px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.section-header h2 {
    font-size: clamp(26px, 3.6vw, 38px);
    font-weight: 700;
    line-height: 1.25;
    margin: 0 0 12px;
    letter-spacing: -0.01em;
}
.section-header p {
    color: var(--text-secondary);
    font-size: 15.5px;
    max-width: 560px;
    margin: 0;
}
.section-header.center {
    text-align: center;
}
.section-header.center p {
    margin-left: auto;
    margin-right: auto;
}
.neon-line {
    width: 48px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    box-shadow: 0 0 12px rgba(0, 227, 156, 0.5);
    margin-bottom: 20px;
}
.section-header.center .neon-line {
    margin-left: auto;
    margin-right: auto;
}

/* ===== TIMELINE ===== */
.timeline-wrap {
    position: relative;
}
.timeline-item {
    display: flex;
    gap: 32px;
    padding: 32px 0;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}
.timeline-item:last-child {
    border-bottom: none;
}
.timeline-num {
    flex: 0 0 64px;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--bg-surface);
    border: 1px solid rgba(0, 227, 156, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: var(--accent);
    box-shadow: 0 0 16px rgba(0, 227, 156, 0.15);
    position: relative;
    z-index: 2;
}
.timeline-item::before {
    content: "";
    position: absolute;
    left: 31px;
    top: 72px;
    bottom: 0;
    width: 1px;
    background: rgba(0, 227, 156, 0.2);
}
.timeline-item:last-child::before {
    display: none;
}
.timeline-body {
    flex: 1;
    padding-top: 6px;
}
.timeline-body h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--text-primary);
}
.timeline-body p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.8;
}
@media (max-width: 767px) {
    .timeline-item {
        gap: 20px;
        padding: 24px 0;
    }
    .timeline-num {
        flex: 0 0 50px;
        width: 50px;
        height: 50px;
        font-size: 18px;
    }
    .timeline-item::before {
        left: 24px;
        top: 58px;
    }
}

/* ===== INFO CARDS ===== */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.info-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
}
.info-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--accent);
    transition: height 0.35s;
}
.info-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 227, 156, 0.2);
    box-shadow: var(--shadow-accent);
}
.info-card:hover::before {
    height: 100%;
}
.info-card .card-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--accent-dim);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 18px;
    transition: background 0.3s, color 0.3s, transform 0.3s;
}
.info-card:hover .card-icon {
    background: var(--accent);
    color: #0A0E13;
    transform: scale(1.05);
}
.info-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 10px;
}
.info-card p {
    font-size: 14.5px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.75;
}
@media (max-width: 767px) {
    .info-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* ===== INTERNAL LINKS ===== */
.internal-links {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}
.link-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.link-block {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.link-block:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 227, 156, 0.2);
    box-shadow: var(--shadow-accent);
}
.link-block .link-label {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}
.link-block .link-label i {
    color: var(--purple);
}
.link-block h3 {
    font-size: 19px;
    font-weight: 700;
    margin: 0;
}
.link-block p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.7;
    flex: 1;
}
.link-block .link-more {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.25s;
}
.link-block .link-more:hover {
    gap: 10px;
    color: var(--accent-hover);
}
@media (max-width: 991px) {
    .link-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* ===== FAQ ===== */
.faq-section {
    background: var(--bg-primary);
}
.faq-wrap {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 48px;
}
.faq-side h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 10px;
}
.faq-side p {
    font-size: 14.5px;
    color: var(--text-secondary);
    margin: 0;
}
.faq-list .faq-item {
    border-bottom: 1px solid var(--border-color);
}
.faq-list .faq-item:last-child {
    border-bottom: none;
}
.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 4px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.25s;
    position: relative;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary:hover {
    color: var(--accent);
}
.faq-item summary .icon {
    flex: 0 0 26px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--border-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--accent);
    transition: transform 0.3s, background 0.3s;
}
.faq-item[open] summary .icon {
    transform: rotate(45deg);
    background: var(--accent-dim);
}
.faq-item .answer {
    padding: 0 4px 24px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}
@media (max-width: 991px) {
    .faq-wrap {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* ===== CTA SECTION ===== */
.cta-section {
    position: relative;
    padding: 80px 0;
    background: var(--bg-surface);
    text-align: center;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(0, 227, 156, 0.08) 0%, transparent 70%);
    pointer-events: none;
}
.cta-section h2 {
    font-size: clamp(26px, 3.6vw, 38px);
    font-weight: 700;
    margin: 0 0 16px;
    position: relative;
}
.cta-section p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 32px;
    position: relative;
}
.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}
.btn-mc {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent);
    color: #0A0E13;
    font-weight: 700;
    font-size: 15px;
    padding: 13px 28px;
    border-radius: 10px;
    border: 1px solid transparent;
    transition: background 0.25s, box-shadow 0.25s, transform 0.15s;
    cursor: pointer;
}
.btn-mc:hover {
    background: var(--accent-hover);
    color: #0A0E13;
    box-shadow: 0 0 22px var(--accent-glow);
    transform: translateY(-1px);
}
.btn-mc:active {
    transform: translateY(1px);
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    color: var(--accent);
    font-weight: 600;
    font-size: 15px;
    padding: 12px 26px;
    border-radius: 10px;
    border: 1px solid rgba(0, 227, 156, 0.5);
    transition: background 0.25s, border-color 0.25s, color 0.25s, transform 0.15s;
    cursor: pointer;
}
.btn-ghost:hover {
    background: rgba(0, 227, 156, 0.08);
    border-color: var(--accent);
    color: var(--accent-hover);
    transform: translateY(-1px);
}
.btn-ghost:active {
    transform: translateY(1px);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-footer);
    padding: 64px 0 24px;
    border-top: 1px solid var(--border-color);
}
.footer-brand {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}
.footer-brand i {
    color: var(--accent);
    font-size: 24px;
}
.footer-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 18px;
    max-width: 320px;
}
.footer-social {
    display: flex;
    gap: 10px;
}
.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 16px;
    transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.footer-social a:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-dim);
}
.footer h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 18px;
    letter-spacing: 0.02em;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.25s, padding-left 0.25s;
    display: inline-block;
}
.footer-links a:hover {
    color: var(--accent);
    padding-left: 4px;
}
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-contact li {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}
.footer-contact li i {
    color: var(--accent);
    font-size: 15px;
}
.footer-bottom {
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 12px;
    color: var(--text-muted);
}
@media (max-width: 767px) {
    .footer {
        padding: 48px 0 20px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== FIXED CTA BAR ===== */
.fixed-cta-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1040;
    background: rgba(10, 14, 19, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 13px 0;
    transform: translateY(100%);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.4s ease;
    pointer-events: none;
}
.fixed-cta-bar.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}
.fixed-cta-bar .bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.fixed-cta-bar .bar-text {
    font-size: 14px;
    color: rgba(245, 247, 250, 0.85);
    display: flex;
    align-items: center;
    gap: 10px;
}
.fixed-cta-bar .bar-text i {
    color: var(--accent);
    font-size: 16px;
}
.fixed-cta-bar .btn-mc {
    padding: 9px 20px;
    font-size: 14px;
    border-radius: 9px;
}
@media (max-width: 575px) {
    .fixed-cta-bar .bar-text {
        font-size: 12.5px;
        gap: 6px;
    }
    .fixed-cta-bar .bar-text i {
        display: none;
    }
    .fixed-cta-bar .btn-mc {
        padding: 8px 14px;
        font-size: 13px;
        max-width: 45%;
        white-space: nowrap;
    }
}

/* ===== MISC ===== */
section + section {
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}
.btn-group-flex {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
@media (max-width: 575px) {
    .btn-group-flex {
        flex-direction: column;
        width: 100%;
    }
    .btn-group-flex .btn-mc,
    .btn-group-flex .btn-ghost {
        width: 100%;
    }
}

/* roulang page: category2 */
:root {
            --bg-dark: #0A0E13;
            --surface-1: #111820;
            --surface-2: #1A2230;
            --primary: #00E39C;
            --primary-hover: #25FFB3;
            --secondary: #7B6CFF;
            --text-light: #F5F7FA;
            --text-muted: #9AA6B8;
            --text-dim: #5C6773;
            --divider: rgba(255, 255, 255, 0.07);
            --border: rgba(255, 255, 255, 0.06);
            --radius-lg: 22px;
            --radius-md: 15px;
            --radius-sm: 10px;
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-primary: 0 0 0 1px rgba(0, 227, 156, 0.15), 0 16px 40px rgba(0, 227, 156, 0.08);
            --container-max: 1280px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.25s ease;
        }

        a:hover {
            color: var(--primary-hover);
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 32px;
            padding-right: 32px;
        }

        .section-padding {
            padding: 100px 0;
        }

        /* ===== 导航 ===== */
        .site-nav {
            background: rgba(10, 14, 19, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: 73px;
            border-bottom: 1px solid var(--divider);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

        .site-nav::after {
            content: "";
            display: block;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 227, 156, 0.4), transparent);
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .brand {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.01em;
        }

        .brand i {
            font-size: 24px;
            color: var(--primary);
        }

        .brand:hover {
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu .nav-link {
            color: rgba(245, 247, 250, 0.72);
            font-size: 15.5px;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            letter-spacing: 0.01em;
            transition: color 0.25s;
        }

        .nav-menu .nav-link::after {
            content: "";
            display: block;
            height: 2px;
            width: 0;
            background: var(--primary);
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            transition: width 0.3s ease;
            box-shadow: 0 0 8px rgba(0, 227, 156, 0.5);
        }

        .nav-menu .nav-link:hover {
            color: var(--text-light);
        }

        .nav-menu .nav-link:hover::after {
            width: 60%;
        }

        .nav-menu .nav-link.active {
            color: var(--primary);
        }

        .nav-menu .nav-link.active::after {
            width: 100%;
        }

        .nav-cta {
            padding: 9px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #0A0E13;
            border: none;
            transition: all 0.25s;
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            color: #0A0E13;
            box-shadow: 0 0 20px rgba(0, 227, 156, 0.35);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            padding: 0;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-light);
            transition: all 0.3s;
        }

        /* ===== 按钮 ===== */
        .btn-mc {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            background: var(--primary);
            color: #0A0E13;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: all 0.25s ease;
            cursor: pointer;
        }

        .btn-mc:hover {
            background: var(--primary-hover);
            color: #0A0E13;
            box-shadow: 0 0 20px rgba(0, 227, 156, 0.35);
            transform: translateY(-2px);
        }

        .btn-mc:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 13px 30px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(0, 227, 156, 0.45);
            transition: all 0.25s ease;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(0, 227, 156, 0.08);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }

        .btn-sm-mc {
            padding: 8px 20px;
            font-size: 14px;
            border-radius: 8px;
        }

        /* ===== 页面横幅 ===== */
        .page-hero {
            padding: 150px 0 70px;
            background: linear-gradient(rgba(10, 14, 19, 0.92), rgba(10, 14, 19, 0.78)),
                url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--divider);
            position: relative;
        }

        .page-hero::after {
            content: "";
            display: block;
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 227, 156, 0.3), transparent);
        }

        .page-hero h1 {
            font-size: clamp(32px, 4.5vw, 48px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
        }

        .page-hero p {
            color: var(--text-muted);
            font-size: 17px;
            max-width: 680px;
            margin-bottom: 18px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-dim);
            margin-top: 16px;
            margin-bottom: 0;
            padding: 0;
        }

        .breadcrumb a {
            color: var(--text-muted);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .active {
            color: var(--text-dim);
        }

        /* ===== 板块标题 ===== */
        .section-title-wrap {
            margin-bottom: 48px;
            position: relative;
        }

        .section-title-wrap h2 {
            font-size: clamp(26px, 3.6vw, 40px);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .section-title-wrap p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 620px;
        }

        .section-title-wrap::after {
            content: "";
            display: block;
            width: 72px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
            border-radius: 99px;
            margin-top: 18px;
        }

        .text-center .section-title-wrap::after {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 服务概览 ===== */
        .service-overview {
            background: var(--bg-dark);
        }

        .info-rows {
            display: flex;
            flex-direction: column;
            max-width: 860px;
            margin: 0 auto;
        }

        .info-row {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 28px 0;
            border-bottom: 1px solid var(--divider);
            transition: all 0.3s;
        }

        .info-row:first-child {
            border-top: 1px solid var(--divider);
        }

        .info-row:hover {
            background: rgba(255, 255, 255, 0.02);
            padding-left: 12px;
        }

        .info-icon {
            width: 52px;
            height: 52px;
            background: rgba(0, 227, 156, 0.08);
            border: 1px solid rgba(0, 227, 156, 0.15);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            flex-shrink: 0;
        }

        .info-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-light);
        }

        .info-body p {
            color: var(--text-muted);
            font-size: 14.5px;
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ===== 对比表格 ===== */
        .compare-section {
            background: var(--surface-1);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }

        .compare-table-wrapper {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--surface-1);
        }

        .compare-table thead th {
            background: var(--surface-2);
            color: var(--text-light);
            font-weight: 600;
            font-size: 15px;
            padding: 20px 24px;
            border-bottom: 1px solid var(--divider);
            text-align: left;
            white-space: nowrap;
        }

        .compare-table thead th:first-child {
            width: 26%;
        }

        .compare-table tbody td {
            padding: 18px 24px;
            font-size: 14.5px;
            color: var(--text-muted);
            border-bottom: 1px solid var(--divider);
            line-height: 1.75;
            vertical-align: top;
        }

        .compare-table tbody tr:last-child td {
            border-bottom: none;
        }

        .compare-table tbody tr:hover {
            background: rgba(0, 227, 156, 0.03);
        }

        .compare-table .td-title {
            color: var(--text-light);
            font-weight: 600;
            font-size: 15px;
        }

        .compare-table .check-icon {
            color: var(--primary);
            margin-right: 6px;
        }

        .compare-table .dash-icon {
            color: var(--text-dim);
        }

        /* ===== 注记块 ===== */
        .notice-block {
            background: rgba(123, 108, 255, 0.05);
            border: 1px solid rgba(123, 108, 255, 0.12);
            border-left: 3px solid var(--secondary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 28px 32px;
            margin-top: 48px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .notice-block h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .notice-block p {
            color: var(--text-muted);
            font-size: 14.5px;
            line-height: 1.8;
            margin-bottom: 8px;
        }

        .notice-block p:last-child {
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-dark);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--divider);
            transition: background 0.25s;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--divider);
        }

        .faq-item:hover {
            background: rgba(255, 255, 255, 0.015);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 12px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-light);
            transition: color 0.2s;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            font-size: 22px;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-question .faq-icon.rotate {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            margin: 0 12px;
            padding: 0 0;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-answer.open {
            max-height: 320px;
            padding: 0 0 22px 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 227, 156, 0.05), transparent 60%);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-section p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 28px;
            font-size: 15.5px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #070A0E;
            padding: 72px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .footer-brand {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand i {
            color: var(--primary);
            font-size: 22px;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all 0.25s;
        }

        .footer-social a:hover {
            background: rgba(0, 227, 156, 0.1);
            border-color: var(--primary);
            color: var(--primary);
        }

        .footer h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: all 0.2s;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 12px;
        }

        .footer-contact li i {
            color: var(--primary);
            font-size: 14px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--divider);
            padding-top: 20px;
            margin-top: 40px;
            color: var(--text-dim);
            font-size: 12.5px;
        }

        /* ===== 底部固定转化条 ===== */
        .sticky-cta {
            position: fixed;
            bottom: -80px;
            left: 0;
            right: 0;
            background: rgba(10, 14, 19, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 14px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 1040;
            transition: bottom 0.4s ease;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
        }

        .sticky-cta.visible {
            bottom: 0;
        }

        .sticky-cta.hide {
            bottom: -80px;
        }

        .sticky-cta-text {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(245, 247, 250, 0.85);
            font-size: 14.5px;
        }

        .sticky-cta-text i {
            color: var(--primary);
        }

        .sticky-cta .btn-mc {
            padding: 10px 22px;
            font-size: 14px;
            white-space: nowrap;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .nav-menu {
                gap: 20px;
            }

            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        @media (max-width: 991.98px) {
            .page-hero {
                padding: 130px 0 56px;
            }

            .nav-menu {
                display: none;
            }

            .nav-menu.open {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 73px;
                left: 0;
                right: 0;
                background: rgba(10, 14, 19, 0.98);
                padding: 32px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--divider);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                align-items: flex-start;
            }

            .nav-menu.open .nav-link {
                font-size: 18px;
                padding: 12px 0;
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }

            .nav-menu.open .nav-link::after {
                display: none;
            }

            .nav-menu.open .nav-link.active {
                padding-left: 8px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta {
                display: none;
            }

            .section-padding {
                padding: 72px 0;
            }

            .compare-table thead th,
            .compare-table tbody td {
                padding: 16px 18px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-hero {
                padding: 110px 0 44px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero p {
                font-size: 15px;
            }

            .breadcrumb {
                flex-wrap: wrap;
                font-size: 12px;
            }

            .section-padding {
                padding: 56px 0;
            }

            .section-title-wrap {
                margin-bottom: 32px;
            }

            .info-row {
                flex-direction: column;
                gap: 14px;
                padding: 22px 0;
            }

            .info-row:hover {
                padding-left: 0;
            }

            .compare-table-wrapper {
                border-radius: var(--radius-md);
            }

            .compare-table thead {
                display: none;
            }

            .compare-table,
            .compare-table tbody,
            .compare-table tr,
            .compare-table td {
                display: block;
                width: 100%;
            }

            .compare-table tbody tr {
                border-bottom: 12px solid var(--bg-dark);
                padding: 8px 0;
            }

            .compare-table tbody tr:last-child {
                border-bottom: none;
            }

            .compare-table tbody td {
                border-bottom: 1px solid var(--divider);
                padding: 12px 18px;
                display: flex;
                gap: 10px;
            }

            .compare-table tbody td:last-child {
                border-bottom: none;
            }

            .compare-table tbody td::before {
                content: attr(data-label);
                font-weight: 600;
                color: var(--text-light);
                min-width: 80px;
                flex-shrink: 0;
                font-size: 14px;
            }

            .compare-table tbody td.td-title::before,
            .compare-table tbody td[data-label=""]::before {
                display: none;
            }

            .notice-block {
                padding: 22px 18px;
                margin-top: 32px;
            }

            .faq-question {
                font-size: 15px;
                padding: 18px 8px;
            }

            .faq-answer {
                font-size: 14px;
            }

            .cta-section h2 {
                font-size: 22px;
            }

            .cta-section .btn-mc {
                width: 100%;
                max-width: 320px;
            }

            .footer {
                padding: 48px 0 20px;
            }

            .sticky-cta {
                padding: 12px 16px;
            }

            .sticky-cta-text {
                font-size: 13px;
            }

            .sticky-cta .btn-mc {
                padding: 9px 14px;
                font-size: 13px;
                max-width: 55%;
            }
        }

        @media (max-width: 520px) {
            .sticky-cta-text i {
                display: none;
            }

            .sticky-cta .btn-mc {
                font-size: 12.5px;
                padding: 8px 12px;
            }

            .footer-social a {
                width: 32px;
                height: 32px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A0E13;
            --bg-surface: #111820;
            --bg-surface-2: #1A2230;
            --accent: #00E39C;
            --accent-hover: #25FFB3;
            --accent-dim: rgba(0, 227, 156, 0.12);
            --purple: #7B6CFF;
            --purple-dim: rgba(123, 108, 255, 0.12);
            --amber: #FFB24C;
            --text-primary: #F5F7FA;
            --text-secondary: #9AA6B8;
            --text-muted: #5C6773;
            --divider: rgba(255, 255, 255, 0.07);
            --border-light: rgba(255, 255, 255, 0.06);
            --glow: 0 0 20px rgba(0, 227, 156, 0.35);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 0 0 1px rgba(0, 227, 156, 0.15), 0 16px 40px rgba(0, 227, 156, 0.08);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: 74px;
            background: rgba(10, 14, 19, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--divider);
            transition: box-shadow 0.3s ease;
        }
        .site-nav::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 227, 156, 0.7), transparent);
            opacity: 0.5;
            pointer-events: none;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand i {
            color: var(--accent);
            font-size: 24px;
        }
        .brand:hover {
            color: var(--accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: rgba(245, 247, 250, 0.7);
            padding: 8px 2px;
            letter-spacing: 0.02em;
            transition: color 0.25s ease;
        }
        .nav-menu .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: var(--glow);
            transition: width 0.3s ease;
        }
        .nav-menu .nav-link:hover {
            color: var(--text-primary);
        }
        .nav-menu .nav-link.active {
            color: var(--accent);
        }
        .nav-menu .nav-link.active::after {
            width: 100%;
        }
        .btn-mc {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #0A0E13;
            font-weight: 600;
            border-radius: 10px;
            padding: 12px 26px;
            border: none;
            font-size: 15px;
            transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-mc:hover {
            background: var(--accent-hover);
            box-shadow: var(--glow);
            color: #0A0E13;
        }
        .btn-mc:active {
            transform: translateY(1px);
        }
        .btn-mc:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .nav-cta {
            padding: 10px 20px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        @media (max-width: 991px) {
            .nav-menu {
                display: none;
                position: fixed;
                top: 74px;
                left: 0;
                right: 0;
                background: #0A0E13;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 32px;
                gap: 0;
                border-bottom: 1px solid var(--divider);
                z-index: 1040;
                min-height: calc(100vh - 74px);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu .nav-link {
                width: 100%;
                font-size: 20px;
                padding: 14px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-menu .nav-link::after {
                left: 0;
                transform: none;
                width: 0;
            }
            .nav-menu .nav-link.active::after {
                width: 48px;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
        }
        .page-banner {
            position: relative;
            margin-top: 74px;
            padding: 100px 0 90px;
            background: linear-gradient(120deg, rgba(10, 14, 19, 0.92), rgba(10, 14, 19, 0.7)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 227, 156, 0.15), transparent 70%);
            pointer-events: none;
        }
        .page-banner .crumbs {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .page-banner .crumbs a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .page-banner .crumbs a:hover {
            color: var(--accent);
        }
        .page-banner .crumbs i {
            font-size: 12px;
        }
        .page-banner h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .page-banner h1 span {
            color: var(--accent);
        }
        .page-banner .banner-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 28px;
        }
        .banner-meta .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 6px 14px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .banner-meta .chip i {
            color: var(--accent);
            font-size: 14px;
        }
        .section-block {
            padding: 90px 0;
        }
        .section-block+.section-block {
            border-top: 1px solid var(--divider);
        }
        .section-head {
            max-width: 720px;
            margin-bottom: 50px;
        }
        .section-head .label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3.6vw, 38px);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        .section-head p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .search-panel {
            background: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 36px;
            position: relative;
            margin-bottom: 0;
        }
        .search-panel .search-input-wrap {
            display: flex;
            align-items: center;
            background: var(--bg-primary);
            border: 1px solid var(--divider);
            border-radius: var(--radius-sm);
            padding: 4px 6px 4px 18px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .search-panel .search-input-wrap:focus-within {
            border-color: rgba(0, 227, 156, 0.4);
            box-shadow: 0 0 0 3px rgba(0, 227, 156, 0.08);
        }
        .search-panel .search-input-wrap i {
            color: var(--text-muted);
            font-size: 18px;
            margin-right: 10px;
        }
        .search-panel .search-input-wrap input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 15px;
            padding: 12px 0;
        }
        .search-panel .search-input-wrap input::placeholder {
            color: var(--text-muted);
        }
        .search-panel .search-input-wrap .btn-search {
            background: var(--accent);
            color: #0A0E13;
            border: none;
            border-radius: 8px;
            padding: 10px 24px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: background 0.25s ease, box-shadow 0.25s ease;
        }
        .search-panel .search-input-wrap .btn-search:hover {
            background: var(--accent-hover);
            box-shadow: var(--glow);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .tag-cloud .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            cursor: pointer;
        }
        .tag-cloud .tag:hover {
            border-color: rgba(0, 227, 156, 0.4);
            color: var(--accent);
            background: var(--accent-dim);
        }
        .tag-cloud .tag i {
            font-size: 12px;
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 50px;
        }
        @media (max-width: 991px) {
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .faq-sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        @media (max-width: 991px) {
            .faq-sidebar {
                position: static;
            }
        }
        .faq-sidebar h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
        }
        .faq-sidebar .faq-nav-cats {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .faq-sidebar .faq-nav-cats a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            transition: background 0.2s ease, color 0.2s ease;
        }
        .faq-sidebar .faq-nav-cats a i {
            font-size: 16px;
            width: 20px;
            text-align: center;
        }
        .faq-sidebar .faq-nav-cats a:hover {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-primary);
        }
        .faq-sidebar .faq-nav-cats a.active {
            background: var(--accent-dim);
            color: var(--accent);
        }
        .accordion-custom {
            display: flex;
            flex-direction: column;
        }
        .accordion-custom .acc-item {
            border-bottom: 1px solid var(--divider);
        }
        .accordion-custom .acc-item:last-child {
            border-bottom: none;
        }
        .accordion-custom .acc-btn {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
            background: transparent;
            border: none;
            padding: 24px 4px;
            text-align: left;
            cursor: pointer;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: color 0.2s ease;
        }
        .accordion-custom .acc-btn:hover {
            color: var(--accent);
        }
        .accordion-custom .acc-btn .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--divider);
            color: var(--accent);
            font-size: 16px;
            transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
        }
        .accordion-custom .acc-item.open .acc-btn .icon {
            transform: rotate(45deg);
            background: var(--accent-dim);
            border-color: rgba(0, 227, 156, 0.3);
        }
        .accordion-custom .acc-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .accordion-custom .acc-panel .acc-content {
            padding: 0 40px 24px 4px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        .accordion-custom .acc-panel .acc-content p {
            margin-bottom: 12px;
        }
        .accordion-custom .acc-panel .acc-content ul {
            padding-left: 18px;
            margin-bottom: 12px;
        }
        .support-cards {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 991px) {
            .support-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 575px) {
            .support-cards {
                grid-template-columns: 1fr;
            }
        }
        .support-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
        }
        .support-card:hover {
            background: var(--bg-surface-2);
            border-color: rgba(0, 227, 156, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .support-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
            background: var(--accent-dim);
            color: var(--accent);
        }
        .support-card .card-icon.purple {
            background: var(--purple-dim);
            color: var(--purple);
        }
        .support-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .support-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .support-card .card-link {
            font-size: 14px;
            color: var(--accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s ease;
        }
        .support-card .card-link:hover {
            gap: 8px;
            color: var(--accent-hover);
        }
        .cta-section {
            padding: 90px 0;
            position: relative;
            background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(17, 24, 32, 0.8) 100%);
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 680px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(ellipse, rgba(0, 227, 156, 0.1), transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .cta-inner h2 {
            font-size: clamp(26px, 4vw, 40px);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .cta-inner h2 span {
            color: var(--accent);
        }
        .cta-inner p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .cta-inner .btn-group-custom {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-outline-mc {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(0, 227, 156, 0.5);
            color: var(--accent);
            font-weight: 600;
            border-radius: 10px;
            padding: 12px 26px;
            font-size: 15px;
            transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
            cursor: pointer;
        }
        .btn-outline-mc:hover {
            background: rgba(0, 227, 156, 0.08);
            border-color: var(--accent);
            color: var(--accent-hover);
        }
        .footer {
            background: #070A0E;
            padding: 70px 0 0;
            border-top: 1px solid var(--divider);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-brand i {
            color: var(--accent);
            font-size: 24px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 16px;
            transition: all 0.25s ease;
        }
        .footer-social a:hover {
            background: var(--accent-dim);
            border-color: rgba(0, 227, 156, 0.3);
            color: var(--accent);
        }
        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .footer-contact li i {
            color: var(--accent);
            font-size: 16px;
        }
        .footer-bottom {
            border-top: 1px solid var(--divider);
            padding: 24px 0;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .mobile-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: rgba(10, 14, 19, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--divider);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transform: translateY(110%);
            transition: transform 0.3s ease;
        }
        .mobile-cta-bar.show {
            transform: translateY(0);
        }
        .mobile-cta-bar.hide-on-up {
            transform: translateY(110%);
        }
        .mobile-cta-bar .bar-text {
            font-size: 14px;
            color: rgba(245, 247, 250, 0.85);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .mobile-cta-bar .bar-text i {
            color: var(--accent);
            font-size: 16px;
            flex-shrink: 0;
        }
        .mobile-cta-bar .bar-btn {
            background: var(--accent);
            color: #0A0E13;
            border: none;
            border-radius: 8px;
            padding: 10px 20px;
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            cursor: pointer;
            transition: background 0.2s ease, box-shadow 0.2s ease;
        }
        .mobile-cta-bar .bar-btn:hover {
            background: var(--accent-hover);
            box-shadow: var(--glow);
        }
        @media (max-width: 575px) {
            .mobile-cta-bar .bar-btn {
                max-width: 40%;
                padding: 10px 14px;
                font-size: 13px;
            }
            .mobile-cta-bar .bar-text {
                font-size: 13px;
            }
        }
        .notice-strip {
            background: linear-gradient(90deg, rgba(0, 227, 156, 0.08), rgba(123, 108, 255, 0.06));
            border: 1px solid rgba(0, 227, 156, 0.12);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin: 40px 0 0;
        }
        .notice-strip i {
            font-size: 20px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .notice-strip p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }
        .notice-strip strong {
            color: var(--text-primary);
            font-weight: 600;
        }
        @media (max-width: 767px) {
            .section-block {
                padding: 60px 0;
            }
            .page-banner {
                padding: 70px 0 60px;
            }
            .search-panel {
                padding: 24px 20px;
            }
            .search-panel .search-input-wrap {
                flex-wrap: wrap;
            }
            .search-panel .search-input-wrap input {
                min-width: 120px;
            }
            .search-panel .search-input-wrap .btn-search {
                width: 100%;
                margin-top: 8px;
            }
            .accordion-custom .acc-btn {
                font-size: 15px;
                padding: 18px 2px;
            }
            .accordion-custom .acc-content {
                padding: 0 20px 18px 2px;
                font-size: 14px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }