/* roulang page: index */
:root {
  --primary: #3D6B99;
  --primary-dark: #2C5178;
  --primary-light: #EAF0F6;
  --secondary: #3FA97C;
  --secondary-dark: #2C8A63;
  --secondary-light: #E4F5ED;
  --accent: #F59E0B;
  --accent-dark: #D98E00;
  --ink: #23283A;
  --body-text: #3F4854;
  --muted: #6F7B8A;
  --bg: #F7F9FB;
  --card: #FFFFFF;
  --border: #E3EAF1;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(27,43,66,0.06);
  --shadow-hover: 0 8px 24px rgba(27,43,66,0.10);
  --font-stack: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-stack);font-size:16px;line-height:1.75;color:var(--body-text);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section-pad{padding:88px 0}
.text-center{text-align:center}
.text-muted{color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--radius-sm);font-size:16px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(61,107,153,.25)}
.btn-primary:focus{outline:2px solid var(--primary);outline-offset:2px}
.btn-secondary{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-secondary:hover{background:var(--primary-light);border-color:var(--primary-dark)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(245,158,11,.25)}
.btn-lg{height:54px;padding:0 40px;font-size:17px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:999;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow .3s ease}
.site-header.scrolled{box-shadow:0 4px 16px rgba(27,43,66,.06)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:76px;position:relative}
.logo{font-size:24px;font-weight:800;color:var(--ink);letter-spacing:-.5px;white-space:nowrap;z-index:2}
.logo .logo-dot{color:var(--secondary);font-size:28px}
.nav-left,.nav-right{display:flex;align-items:center;flex:1;min-width:0}
.nav-right{justify-content:flex-end}
.nav-left ul,.nav-right ul{display:flex;align-items:center;gap:6px}
.nav-left li a,.nav-right li a{display:block;padding:10px 14px;font-size:15px;font-weight:500;color:var(--body-text);border-radius:6px;transition:all .2s ease;position:relative}
.nav-left li a:hover,.nav-right li a:hover{color:var(--primary);background:var(--primary-light)}
.nav-left li a.active,.nav-right li a.active{color:var(--primary);font-weight:600}
.nav-left li a.active::after,.nav-right li a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;background:var(--secondary);border-radius:3px}
.menu-toggle{display:none;background:none;border:none;font-size:22px;color:var(--ink);cursor:pointer;padding:10px;z-index:3;line-height:1}

/* 移动端菜单 */
.mobile-nav{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(255,255,255,.98);z-index:998;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;opacity:0;visibility:hidden;transition:opacity .3s ease}
.mobile-nav.open{opacity:1;visibility:visible}
.mobile-nav a{font-size:22px;font-weight:600;color:var(--ink);padding:14px 24px;border-radius:8px;transition:background .2s}
.mobile-nav a:hover{background:var(--primary-light);color:var(--primary)}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.88) 45%,rgba(255,255,255,.6) 70%,rgba(255,255,255,.35) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;padding:120px 0 110px;border-bottom:1px solid var(--border)}
.hero-inner{max-width:680px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--secondary-light);color:var(--secondary-dark);font-size:14px;font-weight:600;padding:8px 18px;border-radius:999px;margin-bottom:24px}
.hero-badge i{font-size:15px}
.hero h1{font-size:46px;line-height:1.2;font-weight:800;color:var(--ink);letter-spacing:-1px;margin-bottom:18px}
.hero h1 .highlight{color:var(--primary);position:relative}
.hero-sub{font-size:19px;line-height:1.7;color:var(--body-text);margin-bottom:36px;max-width:540px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px}
.hero-data{display:flex;gap:48px;flex-wrap:wrap}
.hero-data .data-item .data-num{font-size:42px;font-weight:800;color:var(--ink);line-height:1.1}
.hero-data .data-item .data-num span{color:var(--secondary)}
.hero-data .data-item .data-label{font-size:14px;color:var(--muted);margin-top:4px}

/* ---------- 板块通用 ---------- */
.section-h2{font-size:34px;line-height:1.3;font-weight:800;color:var(--ink);margin-bottom:16px;letter-spacing:-.5px}
.section-desc{font-size:17px;color:var(--muted);max-width:640px;margin-bottom:48px}
.sec-head{text-align:center}
.sec-head .section-desc{margin-left:auto;margin-right:auto}

/* ---------- 卖点区 ---------- */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.feature-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:36px 32px;border:1px solid var(--border);transition:box-shadow .3s,transform .3s;position:relative;overflow:hidden}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.feature-card.wide{grid-column:1/-1;display:flex;gap:28px;align-items:center;padding:40px}
.feature-card.wide .feature-icon{width:88px;height:88px;flex-shrink:0}
.feature-icon{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:20px;color:#fff}
.feature-icon.teal{background:linear-gradient(135deg,#43A884,#2C8A63)}
.feature-icon.blue{background:linear-gradient(135deg,#4D7CAE,#3D6B99)}
.feature-icon.orange{background:linear-gradient(135deg,#F7B844,#F59E0B)}
.feature-card h3{font-size:21px;font-weight:700;color:var(--ink);margin-bottom:12px}
.feature-card p{font-size:15.5px;line-height:1.7;color:var(--muted)}
.feature-card .feature-tag{position:absolute;top:20px;right:20px;font-size:13px;font-weight:600;background:var(--secondary-light);color:var(--secondary-dark);padding:4px 14px;border-radius:999px}

/* ---------- 演示区 ---------- */
.showcase{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.showcase-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:96px 0}
.showcase-row + .showcase-row{border-top:1px solid var(--border)}
.showcase-media{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-hover)}
.showcase-media img{width:100%;height:360px;object-fit:cover;transition:transform .5s ease}
.showcase-media:hover img{transform:scale(1.03)}
.showcase-media::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(35,40,58,.25),transparent 45%)}
.showcase-info .sc-kicker{font-size:14px;font-weight:700;color:var(--secondary);letter-spacing:1px;text-transform:uppercase;margin-bottom:12px}
.showcase-info h3{font-size:26px;font-weight:800;color:var(--ink);margin-bottom:16px;line-height:1.35}
.showcase-info p{font-size:16px;line-height:1.75;color:var(--muted);margin-bottom:24px}
.showcase-info a.more{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--primary);transition:gap .2s}
.showcase-info a.more:hover{gap:14px;color:var(--primary-dark)}
.row-reverse .showcase-media{order:2}

/* ---------- 证据区 ---------- */
.proof{background:var(--bg)}
.data-band{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-bottom:72px}
.data-band .data-cell{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow-sm)}
.data-band .data-cell .num{font-size:40px;font-weight:800;color:var(--primary);line-height:1.1}
.data-band .data-cell .num small{font-size:20px}
.data-band .data-cell .label{font-size:14px;color:var(--muted);margin-top:10px}
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.testimonial-card{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-sm);border:1px solid var(--border);display:flex;flex-direction:column}
.testimonial-card .stars{color:var(--accent);font-size:15px;margin-bottom:16px;letter-spacing:2px}
.testimonial-card blockquote{font-size:15px;line-height:1.7;color:var(--body-text);flex:1;margin-bottom:20px;border-left:3px solid var(--secondary);padding-left:16px}
.testimonial-card .who{display:flex;align-items:center;gap:12px}
.testimonial-card .who .avatar{width:42px;height:42px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700}
.testimonial-card .who .name{font-size:14px;font-weight:600;color:var(--ink)}
.testimonial-card .who .role{font-size:13px;color:var(--muted)}

/* ---------- 方案区 ---------- */
.pricing{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;align-items:stretch}
.price-card{background:#fff;border-radius:var(--radius);padding:40px 32px;box-shadow:var(--shadow-sm);border:1px solid var(--border);display:flex;flex-direction:column;position:relative;transition:transform .3s,box-shadow .3s}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.price-card.featured{border:2px solid var(--secondary);box-shadow:0 8px 30px rgba(63,169,124,.18);transform:scale(1.03)}
.price-card.featured:hover{transform:scale(1.03) translateY(-4px)}
.price-card .rec-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--secondary);color:#fff;font-size:13px;font-weight:700;padding:6px 20px;border-radius:999px;box-shadow:0 4px 12px rgba(63,169,124,.35)}
.price-card .plan-name{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:8px}
.price-card .plan-desc{font-size:14px;color:var(--muted);margin-bottom:24px}
.price-card .plan-price{font-size:44px;font-weight:800;color:var(--ink);margin-bottom:4px;line-height:1.1}
.price-card .plan-price small{font-size:16px;font-weight:400;color:var(--muted)}
.price-card .plan-period{font-size:14px;color:var(--muted);margin-bottom:28px}
.price-card ul{flex:1;margin-bottom:32px}
.price-card ul li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.65;padding:7px 0;color:var(--body-text)}
.price-card ul li i{color:var(--secondary);margin-top:4px;font-size:14px;flex-shrink:0}
.price-card .btn{width:100%}

/* ---------- FAQ ---------- */
.faq{background:#fff}
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;transition:border-color .3s}
.faq-item.open{border-color:var(--primary)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 28px;cursor:pointer;font-size:17px;font-weight:600;color:var(--ink);background:#fff;border:none;width:100%;text-align:left;transition:background .2s}
.faq-q:hover{background:#F9FBFC}
.faq-q .faq-icon{width:30px;height:30px;border-radius:50%;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:14px;transition:transform .35s,background .3s;flex-shrink:0}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);border-color:var(--primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 28px}
.faq-item.open .faq-a{max-height:500px;padding:0 28px 24px}
.faq-a p{font-size:15.5px;line-height:1.75;color:var(--muted)}

/* ---------- 资讯动态 ---------- */
.news{background:var(--bg)}
.news-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.news-feature{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:box-shadow .3s}
.news-feature:hover{box-shadow:var(--shadow-hover)}
.news-feature img{width:100%;height:260px;object-fit:cover}
.news-feature .nf-body{padding:28px}
.news-feature .nf-body h3{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:12px;line-height:1.45}
.news-feature .nf-body p{font-size:15px;color:var(--muted);margin-bottom:18px}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-row{background:#fff;border-radius:var(--radius);padding:22px 24px;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow .25s,transform .25s;display:block}
.news-row:hover{box-shadow:var(--shadow-hover);transform:translateX(4px)}
.news-row .row-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.news-tag{font-size:12px;font-weight:600;color:var(--secondary-dark);background:var(--secondary-light);padding:3px 10px;border-radius:999px}
.news-date{font-size:13px;color:var(--muted)}
.news-row h4{font-size:16.5px;font-weight:600;color:var(--ink);margin-bottom:8px;line-height:1.5}
.news-row p{font-size:14.5px;color:var(--muted);line-height:1.6;margin-bottom:6px}
.empty-tip{background:#fff;border:1px dashed var(--border);border-radius:var(--radius);padding:48px 24px;text-align:center;color:var(--muted);font-size:15px}

/* ---------- CTA ---------- */
.cta-section{background:linear-gradient(120deg,var(--primary) 0%,var(--primary-dark) 100%);padding:76px 0;color:#fff;position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;top:-40%;right:-10%;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.04)}
.cta-section::after{content:"";position:absolute;bottom:-60%;left:-10%;width:360px;height:360px;border-radius:50%;background:rgba(63,169,124,.18)}
.cta-inner{position:relative;z-index:2;max-width:720px}
.cta-inner h2{font-size:34px;font-weight:800;line-height:1.3;margin-bottom:16px}
.cta-inner p{font-size:17px;line-height:1.7;opacity:.92;margin-bottom:36px}
.cta-form{display:flex;gap:14px;max-width:520px;flex-wrap:wrap}
.cta-form input[type="text"],.cta-form input[type="tel"]{flex:1 1 220px;height:52px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.25);padding:0 18px;background:rgba(255,255,255,.16);color:#fff;font-size:15px;outline:none;transition:border .2s,background .2s}
.cta-form input::placeholder{color:rgba(255,255,255,.75)}
.cta-form input:focus{border-color:#fff;background:rgba(255,255,255,.24)}
.cta-form .btn-accent{background:var(--accent);color:#fff;border:none;height:52px}
.cta-form .btn-accent:hover{background:var(--accent-dark);box-shadow:0 8px 24px rgba(0,0,0,.18)}
.form-tip{font-size:13px;opacity:.8;margin-top:16px}

/* ---------- Footer ---------- */
.site-footer{background:#1F2433;color:#9AA5B5;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px}
.footer-brand .f-logo{font-size:24px;font-weight:800;color:#fff;margin-bottom:16px;display:block}
.footer-brand .f-logo span{color:var(--secondary)}
.footer-brand p{font-size:14px;line-height:1.8;color:#8B96A6}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px;letter-spacing:.5px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:#9AA5B5;transition:color .2s,padding-left .2s;display:inline-block}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-col .contact-item{font-size:14px;line-height:1.7;margin-bottom:14px;display:flex;gap:10px;align-items:flex-start}
.footer-col .contact-item i{color:var(--secondary);margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:24px 0;text-align:center;font-size:13px;color:#7E8998}
.footer-bottom a{color:#9AA5B5}
.footer-bottom a:hover{color:#fff}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:900;display:flex;align-items:center;gap:10px;background:var(--accent);color:#fff;border:none;height:52px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;box-shadow:0 8px 24px rgba(245,158,11,.4);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(20px);transition:all .4s ease}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(245,158,11,.45)}
.float-cta .close-float{margin-left:8px;width:20px;height:20px;border-radius:50%;background:rgba(255,255,255,.2);border:none;color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;cursor:pointer;line-height:1}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section-pad{padding:72px 0}
  .feature-card.wide{flex-direction:column;align-items:flex-start}
  .showcase-row{padding:72px 0;gap:40px}
  .data-band{grid-template-columns:repeat(2,1fr);gap:20px}
  .testimonial-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:repeat(3,1fr);gap:16px}
  .price-card{padding:32px 22px}
  .price-card .plan-price{font-size:36px}
  .news-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-left,.nav-right{display:none}
  .menu-toggle{display:block}
  .nav-wrap{height:64px}
  .logo{font-size:20px}
  .hero{padding:80px 0 70px;background:linear-gradient(180deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.85) 60%,rgba(255,255,255,.7) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .hero-cta{gap:12px;margin-bottom:40px}
  .hero-data{gap:28px}
  .hero-data .data-item .data-num{font-size:32px}
  .section-h2{font-size:26px}
  .section-desc{font-size:15px}
  .feature-grid{grid-template-columns:1fr}
  .feature-card.wide{grid-column:1}
  .showcase-row{grid-template-columns:1fr;padding:56px 0}
  .row-reverse .showcase-media{order:1}
  .showcase-media img{height:260px}
  .data-band{grid-template-columns:repeat(2,1fr)}
  .testimonial-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr;max-width:420px;margin:0 auto}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{font-size:12px}
  .float-cta{left:16px;right:16px;bottom:16px;justify-content:center;border-radius:12px}
  .cta-form .btn-accent{flex:1 1 100%}
}
@media (max-width:520px){
  .hero h1{font-size:28px}
  .hero-data{gap:16px}
  .hero-data .data-item .data-num{font-size:26px}
  .data-band{grid-template-columns:1fr 1fr;padding:16px}
  .data-band .data-cell{padding:20px 12px}
  .data-band .data-cell .num{font-size:30px}
  .faq-q{font-size:15px;padding:18px 18px}
  .faq-a{padding:0 18px}
  .faq-item.open .faq-a{padding:0 18px 20px}
  .news-feature .nf-body{padding:20px}
  .news-row{padding:18px}
  .cta-section{padding:60px 0}
  .cta-inner h2{font-size:26px}
}

/* roulang page: category1 */
:root {
            --primary: #3E7CB1;
            --primary-dark: #2D5F8A;
            --primary-light: #EAF2F8;
            --accent: #3FA47A;
            --accent-light: #E8F5EF;
            --warm: #F2994A;
            --warm-dark: #E07F2E;
            --ink: #1F2A37;
            --text: #33404D;
            --text-light: #6B7A89;
            --bg: #F7F9FB;
            --white: #FFFFFF;
            --border: #E6ECF2;
            --radius: 12px;
            --shadow: 0 2px 8px rgba(27, 43, 66, 0.06);
            --shadow-hover: 0 8px 24px rgba(27, 43, 66, 0.10);
            --space-section: 88px;
            --space-section-mobile: 60px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        ul,
        ol {
            padding: 0;
            margin: 0;
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--space-section) 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--space-section-mobile) 0;
            }
        }

        .section-head {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 48px;
        }

        .section-head.left {
            text-align: left;
            margin: 0 0 32px;
        }

        .section-head h2 {
            font-size: 34px;
            line-height: 1.3;
            color: var(--ink);
            margin: 0 0 12px;
            letter-spacing: -0.5px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-light);
            margin: 0;
        }

        @media (max-width: 768px) {
            .section-head h2 {
                font-size: 26px;
            }
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 46px;
            padding: 0 26px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(62, 124, 177, 0.25);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-warm {
            background: var(--warm);
            color: #fff;
            border-color: var(--warm);
        }

        .btn-warm:hover {
            background: var(--warm-dark);
            border-color: var(--warm-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(242, 153, 74, 0.3);
        }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(27, 43, 66, 0.07);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            position: relative;
        }

        .nav-left,
        .nav-right {
            flex: 1;
            display: flex;
            align-items: center;
        }

        .nav-left ul,
        .nav-right ul {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-left li a,
        .nav-right li a {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 8px;
            position: relative;
            transition: color 0.2s ease, background 0.2s ease;
        }

        .nav-left li a:hover,
        .nav-right li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-left li a.active,
        .nav-right li a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-left li a.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 0;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 2;
            line-height: 1.2;
        }

        .logo span {
            color: var(--accent);
            margin: 0 2px;
        }

        /* 右侧下拉 */
        .nav-right {
            justify-content: flex-end;
            gap: 10px;
        }

        .dropdown {
            position: relative;
        }

        .dropdown-toggle {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 40px;
            padding: 0 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .dropdown-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .dropdown-menu {
            position: absolute;
            right: 0;
            top: calc(100% + 8px);
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            min-width: 150px;
            padding: 8px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-6px);
            transition: all 0.25s ease;
            z-index: 50;
        }

        .dropdown.open .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-menu a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text);
            border-radius: 8px;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .dropdown-menu a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .dropdown-menu a i {
            color: var(--accent);
            font-size: 12px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: var(--white);
            color: var(--ink);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        .mobile-menu {
            display: none;
        }

        @media (max-width: 1024px) {
            .nav-left li a,
            .nav-right li a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .logo {
                font-size: 19px;
            }
        }

        @media (max-width: 860px) {
            .nav-wrap {
                height: 64px;
            }
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
                margin-left: auto;
            }
            .logo {
                margin: 0 auto;
            }
            .mobile-menu {
                display: block;
                max-height: 0;
                overflow: hidden;
                background: var(--white);
                border-bottom: 1px solid var(--border);
                transition: max-height 0.4s ease;
            }
            .mobile-menu.open {
                max-height: 480px;
                overflow-y: auto;
            }
            .mobile-menu ul {
                padding: 12px 24px 20px;
                display: flex;
                flex-direction: column;
                gap: 4px;
            }
            .mobile-menu ul li a {
                display: block;
                padding: 12px 14px;
                font-size: 16px;
                color: var(--ink);
                border-radius: 10px;
                font-weight: 500;
            }
            .mobile-menu ul li a:hover {
                background: var(--primary-light);
                color: var(--primary);
            }
            .mobile-menu ul li a.active {
                background: var(--primary-light);
                color: var(--primary);
                font-weight: 600;
            }
            .mobile-menu .mobile-divider {
                height: 1px;
                background: var(--border);
                margin: 8px 0;
            }
        }

        /* ===== 分类 Hero ===== */
        .category-hero {
            position: relative;
            padding: 96px 0 84px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(247, 249, 251, 0.97) 0%, rgba(247, 249, 251, 0.9) 45%, rgba(247, 249, 251, 0.6) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(63, 164, 122, 0.25);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .hero-title {
            font-size: 46px;
            line-height: 1.2;
            color: var(--ink);
            margin: 0 0 18px;
            font-weight: 800;
            letter-spacing: -1px;
        }

        .hero-title span {
            color: var(--primary);
            display: inline-block;
            position: relative;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: var(--text);
            margin: 0 0 28px;
            max-width: 560px;
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 36px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            font-size: 14px;
            color: var(--text-light);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-meta i {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 56px 0 60px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-cta {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta .btn {
                width: 100%;
            }
        }

        /* ===== 子主题卡片 ===== */
        .sub-topics {
            background: var(--white);
        }

        .feature-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .feature-card-lg {
            border-top: 4px solid var(--accent);
        }

        .feature-card-sm {
            border-top: 4px solid transparent;
        }

        .feature-card-sm:hover {
            border-top-color: var(--primary);
        }

        .card-media {
            overflow: hidden;
            background: #EAF0F4;
            aspect-ratio: 16 / 9;
        }

        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .feature-card:hover .card-media img {
            transform: scale(1.03);
        }

        .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-body h3 {
            font-size: 20px;
            color: var(--ink);
            margin: 10px 0 8px;
            line-height: 1.4;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0 0 16px;
        }

        .card-link {
            margin-top: auto;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
        }

        .card-link i {
            transition: transform 0.2s ease;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        .card-tag {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            padding: 4px 12px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
        }

        .card-tag.accent {
            background: var(--accent-light);
            color: var(--accent);
        }

        .card-tag.warm {
            background: rgba(242, 153, 74, 0.12);
            color: var(--warm-dark);
        }

        .grid-x.grid-margin-x .cell {
            margin-bottom: 24px;
        }

        @media (max-width: 768px) {
            .card-body {
                padding: 20px;
            }
        }

        /* ===== 价值点 ===== */
        .values {
            background: var(--bg);
        }

        .values-intro h3 {
            font-size: 28px;
            color: var(--ink);
            line-height: 1.35;
            margin: 0 0 12px;
        }

        .values-intro p {
            font-size: 16px;
            color: var(--text-light);
            margin: 0 0 24px;
        }

        .value-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .value-item {
            display: flex;
            gap: 18px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 24px;
            box-shadow: var(--shadow);
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .value-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(62, 124, 177, 0.3);
        }

        .value-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            min-width: 44px;
            margin-top: 4px;
        }

        .value-content h4 {
            font-size: 18px;
            color: var(--ink);
            margin: 0 0 6px;
        }

        .value-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 768px) {
            .values-intro {
                margin-bottom: 28px;
            }
            .value-item {
                padding: 18px 20px;
            }
        }

        /* ===== 覆盖领域 ===== */
        .coverage {
            background: var(--white);
        }

        .coverage-media img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-hover);
            aspect-ratio: 4 / 3;
            object-fit: cover;
            width: 100%;
        }

        .coverage-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .coverage-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 20px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all 0.25s ease;
        }

        .coverage-item:hover {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding-left: 17px;
        }

        .coverage-item > i {
            font-size: 22px;
            color: var(--accent);
            width: 30px;
            text-align: center;
            margin-top: 2px;
        }

        .coverage-item strong {
            display: block;
            font-size: 16px;
            color: var(--ink);
            margin-bottom: 2px;
        }

        .coverage-item span {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .coverage-media {
                margin-bottom: 28px;
            }
        }

        /* ===== 数据证据 ===== */
        .stats-section {
            background: var(--ink);
            padding: 72px 0;
        }

        .stats-section .stat-item {
            padding: 24px 12px;
        }

        .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }

        @media (max-width: 640px) {
            .stat-num {
                font-size: 34px;
            }
        }

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

        .faq-list {
            max-width: 960px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: transparent;
            border: none;
            padding: 20px 24px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            transition: color 0.2s ease;
        }

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

        .faq-q i {
            font-size: 16px;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-q i {
            transform: rotate(45deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.open .faq-a {
            max-height: 200px;
        }

        .faq-a p {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== CTA 区 ===== */
        .cta-bar {
            background: var(--white);
            padding: 40px 0 80px;
        }

        .cta-inner {
            background: linear-gradient(135deg, var(--primary) 0%, #4A8FBF 100%);
            border-radius: 20px;
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: 0 12px 40px rgba(62, 124, 177, 0.2);
        }

        .cta-text {
            max-width: 480px;
        }

        .cta-text h2 {
            font-size: 28px;
            color: #fff;
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .cta-text p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            flex: 1;
            max-width: 460px;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            height: 46px;
            padding: 0 18px;
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: 8px;
            background: #fff;
            color: var(--ink);
            font-size: 15px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .cta-form input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(63, 164, 122, 0.2);
        }

        .cta-form .btn {
            height: 46px;
        }

        .form-success {
            width: 100%;
            color: #E8F5EF;
            font-size: 15px;
            background: rgba(255, 255, 255, 0.15);
            padding: 12px 18px;
            border-radius: 8px;
            display: none;
        }

        .form-success.show {
            display: block;
        }

        @media (max-width: 768px) {
            .cta-inner {
                padding: 32px 24px;
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form {
                max-width: 100%;
            }
            .cta-form input {
                min-width: 100%;
            }
            .cta-form .btn {
                width: 100%;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, 0.7);
            padding-top: 68px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding-bottom: 44px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin: 16px 0 0;
            max-width: 320px;
        }

        .f-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .f-logo span {
            color: var(--accent);
        }

        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            margin: 0 0 16px;
            font-weight: 600;
        }

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.6);
        }

        .contact-item i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 22px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        @media (max-width: 860px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-brand,
            .footer-col {
                grid-column: auto;
            }
        }

        /* ===== 浮动 CTA ===== */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 90;
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: all 0.35s ease;
        }

        .float-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .float-cta .btn {
            box-shadow: 0 8px 28px rgba(31, 42, 55, 0.25);
            padding: 0 22px;
        }

        .float-close {
            position: absolute;
            top: -8px;
            right: -8px;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--ink);
            color: #fff;
            border: 2px solid #fff;
            font-size: 12px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease;
        }

        .float-close:hover {
            background: var(--warm);
        }

        @media (max-width: 640px) {
            .float-cta {
                left: 0;
                right: 0;
                bottom: 0;
                padding: 12px 16px;
                background: rgba(255, 255, 255, 0.95);
                backdrop-filter: blur(8px);
                border-top: 1px solid var(--border);
                transform: translateY(100%);
                box-shadow: 0 -4px 24px rgba(27, 43, 66, 0.08);
            }
            .float-cta.show {
                transform: translateY(0);
            }
            .float-cta .btn {
                width: 100%;
                height: 48px;
            }
            .float-close {
                top: -10px;
                right: 12px;
            }
        }

        /* Foundation 修正与增强 */
        .grid-margin-x > .cell {
            margin-bottom: 24px;
        }

        .align-middle {
            align-items: center;
        }

        .text-center {
            text-align: center;
        }

        @media (max-width: 768px) {
            .large-offset-1 {
                margin-left: 0 !important;
            }
        }

/* roulang page: article */
:root{
  --primary:#3B6C9D;
  --primary-hover:#2F5A85;
  --primary-light:#E7EFF6;
  --primary-border:#B9CCDE;
  --secondary:#439A6E;
  --secondary-dark:#357F5A;
  --secondary-light:#E0F0E8;
  --accent:#E8843C;
  --accent-dark:#D9722A;
  --ink:#1E2934;
  --ink-soft:#4A5B6B;
  --muted:#7A8A99;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --border:#E6ECF2;
  --border-dark:#D0DAE4;
  --radius:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow:0 2px 8px rgba(27,43,66,.06);
  --shadow-lg:0 8px 24px rgba(27,43,66,.10);
  --space-xl:88px;
  --space-lg:64px;
  --space-md:40px;
  --space-sm:24px;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --transition:all .25s ease
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-main);font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-hover)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.3;color:var(--ink);font-weight:700}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{position:sticky;top:0;z-index:1000;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 1px 4px rgba(27,43,66,.04);transition:var(--transition)}
.site-header.scrolled{box-shadow:0 4px 16px rgba(27,43,66,.08)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:72px;position:relative}
.logo-center{position:absolute;left:50%;transform:translateX(-50%);font-size:23px;font-weight:800;color:var(--ink);text-decoration:none;letter-spacing:.5px;z-index:10;white-space:nowrap}
.logo-center .logo-dot{color:var(--secondary);font-weight:900}
.logo-center .brand-blue{color:var(--primary)}
.logo-center:hover{color:var(--ink)}
.nav-left,.nav-right{display:flex;align-items:center}
.nav-left ul,.nav-right ul{display:flex;align-items:center;gap:8px;list-style:none;margin:0;padding:0}
.nav-left a,.nav-right a{display:inline-block;padding:10px 14px;font-size:15px;font-weight:500;color:var(--ink-soft);border-radius:var(--radius-sm);text-decoration:none;transition:var(--transition);position:relative}
.nav-left a:hover,.nav-right a:hover{color:var(--primary);background:var(--primary-light)}
.nav-left a.active,.nav-right a.active{color:var(--primary);font-weight:600}
.nav-left a.active::after,.nav-right a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;background:var(--primary);border-radius:2px}
.menu-toggle{display:none}

/* Breadcrumb */
.breadcrumb-area{background:#fff;border-bottom:1px solid var(--border);padding:16px 0}
.breadcrumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--primary)}
.breadcrumbs .sep{color:#C4D0DC}
.breadcrumbs .current{color:var(--ink-soft);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:320px;font-weight:500}

/* Article */
.article-section{padding:var(--space-lg) 0}
.article-detail{max-width:800px;margin:0 auto;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:48px 52px}
.article-head{margin-bottom:36px;border-bottom:1px solid var(--border);padding-bottom:32px}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;margin-bottom:20px}
.meta-item{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--muted)}
.meta-item i{color:var(--secondary)}
.meta-item .meta-cat{display:inline-block;background:var(--secondary-light);color:var(--secondary-dark);padding:2px 12px;border-radius:var(--radius-pill);font-size:13px;font-weight:600}
.article-head h1{font-size:38px;line-height:1.25;letter-spacing:.4px;margin-bottom:16px;color:var(--ink);font-weight:800}
.article-summary{font-size:16.5px;color:var(--ink-soft);line-height:1.85;border-left:4px solid var(--secondary);background:var(--secondary-light);padding:18px 24px;border-radius:0 10px 10px 0;margin-bottom:4px}

.article-body{font-size:17px;line-height:2;color:var(--ink)}
.article-body p{margin-bottom:1.6em}
.article-body h2{font-size:26px;margin:1.6em 0 .7em;font-weight:700;color:var(--ink)}
.article-body h3{font-size:21px;margin:1.4em 0 .6em;font-weight:700}
.article-body img{border-radius:var(--radius);margin:1.6em auto;box-shadow:var(--shadow)}
.article-body blockquote{border-left:4px solid var(--primary);background:var(--primary-light);padding:18px 24px;border-radius:0 10px 10px 0;color:var(--ink-soft);margin:1.6em 0}
.article-body ul,.article-body ol{padding-left:26px;margin-bottom:1.6em}
.article-body ul li{list-style:disc;margin-bottom:.55em}
.article-body ol li{list-style:decimal;margin-bottom:.55em}
.article-body a{color:var(--primary);border-bottom:1px solid var(--primary-border);text-decoration:none}
.article-body a:hover{border-color:var(--primary)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0}
.article-body table th,.article-body table td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-body table th{background:var(--primary-light);font-weight:600}

.article-empty{text-align:center;padding:70px 24px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow)}
.article-empty .empty-icon{font-size:48px;color:var(--primary-border);margin-bottom:18px}
.article-empty p{font-size:20px;color:var(--ink-soft);margin-bottom:24px}
.btn{border-radius:var(--radius-sm);padding:13px 30px;font-size:16px;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:var(--transition);border:2px solid transparent;cursor:pointer;text-decoration:none;line-height:1.2}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(59,108,157,.25)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary-hover);color:var(--primary-hover);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(232,132,60,.28)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* Article Footer Bar */
.article-footer-bar{border-top:1px solid var(--border);margin-top:40px;padding-top:28px}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.tag{display:inline-block;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;padding:4px 14px;border-radius:var(--radius-pill);text-decoration:none;transition:var(--transition)}
.tag:hover{background:var(--primary);color:#fff}
.article-pager{display:flex;justify-content:space-between;gap:16px}
.pager-link{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-weight:500;color:var(--ink-soft);text-decoration:none;transition:var(--transition)}
.pager-link:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}

/* Related */
.related-section{padding:var(--space-lg) 0;background:var(--bg)}
.related-title{font-size:30px;font-weight:800;text-align:center;margin-bottom:16px;letter-spacing:.5px}
.related-sub{text-align:center;color:var(--muted);margin-bottom:40px;font-size:15px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:8px}
.related-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;transition:var(--transition);border:1px solid var(--border);height:100%}
.related-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:var(--primary-border)}
.related-img{aspect-ratio:16/9;overflow:hidden;background:var(--primary-light)}
.related-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-img img{transform:scale(1.04)}
.related-content{padding:22px 24px;display:flex;flex-direction:column;flex:1}
.related-cat{display:inline-block;background:var(--secondary-light);color:var(--secondary-dark);font-size:12.5px;font-weight:600;padding:3px 12px;border-radius:var(--radius-pill);margin-bottom:10px;align-self:flex-start}
.related-content h3{font-size:18px;font-weight:700;margin-bottom:8px;color:var(--ink);line-height:1.45}
.related-content p{font-size:14.5px;color:var(--muted);line-height:1.7;margin-bottom:14px;flex:1}
.related-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.related-meta i{color:var(--primary)}

.related-empty{text-align:center;padding:40px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow)}
.related-empty a{color:var(--primary);font-weight:600}

/* CTA Bar */
.cta-bar{background:var(--primary);padding:56px 0;color:#fff;position:relative;overflow:hidden}
.cta-bar::before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.14;mix-blend-mode:overlay}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:700px;margin:0 auto}
.cta-inner h2{font-size:30px;font-weight:800;color:#fff;margin-bottom:10px}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:28px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-bar .btn-accent{background:#fff;color:var(--primary)}
.cta-bar .btn-accent:hover{background:var(--secondary-light);color:var(--primary);transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,0,0,.12)}
.cta-bar .btn-outline{border-color:rgba(255,255,255,.7);color:#fff}
.cta-bar .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* Floating CTA */
.floating-cta{position:fixed;right:24px;bottom:24px;z-index:900;background:var(--accent);color:#fff;padding:14px 24px;border-radius:var(--radius-pill);box-shadow:0 8px 24px rgba(232,132,60,.35);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px;text-decoration:none;opacity:0;visibility:hidden;transform:translateY(20px);transition:var(--transition)}
.floating-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.floating-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px) scale(1.02)}
.floating-cta .close-cta{background:transparent;border:none;color:rgba(255,255,255,.7);font-size:18px;cursor:pointer;margin-left:4px;padding:0 2px;line-height:1}
.floating-cta .close-cta:hover{color:#fff}

/* Footer */
.site-footer{background:#1F2A34;color:#A7B4C2;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px}
.footer-brand .f-logo{font-size:22px;font-weight:800;color:#fff;text-decoration:none;display:inline-block;margin-bottom:16px}
.footer-brand .f-logo span{color:var(--secondary)}
.footer-brand p{font-size:14px;line-height:1.85;color:#8B99A8}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.5px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:#8B99A8;font-size:14px;text-decoration:none;transition:var(--transition)}
.footer-col ul li a:hover{color:#fff}
.contact-item{display:flex;align-items:center;gap:10px;font-size:14px;color:#8B99A8;margin-bottom:12px}
.contact-item i{color:var(--secondary)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;text-align:center;font-size:13px;color:#6B7887}
.footer-bottom a{color:#8B99A8}
.footer-bottom a:hover{color:#fff}

/* Responsive */
@media (max-width:1024px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .article-detail{padding:40px 32px}
}
@media (max-width:768px){
  :root{--space-xl:56px;--space-lg:48px}
  .header-inner{height:64px;padding:0 16px;display:flex;flex-wrap:wrap;align-items:center}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;background:transparent;color:var(--ink);font-size:18px;cursor:pointer;border-radius:var(--radius-sm);order:1;z-index:15}
  .menu-toggle:hover{background:var(--primary-light);color:var(--primary)}
  .logo-center{order:2;position:static;transform:none;font-size:20px;margin:0 auto}
  .nav-left,.nav-right{display:none;width:100%;order:10;background:#fff;border-top:1px solid var(--border);padding:8px 8px 12px;flex-direction:column;align-items:flex-start}
  .nav-left.show,.nav-right.show{display:flex}
  .nav-right{order:11;border-top:none;padding-top:0}
  .nav-left ul,.nav-right ul{flex-direction:column;gap:0;width:100%}
  .nav-left a,.nav-right a{display:block;width:100%;padding:12px 12px;border-radius:var(--radius-sm)}
  .nav-left a.active::after,.nav-right a.active::after{display:none}
  .breadcrumbs .current{max-width:200px}
  .article-section{padding:32px 0}
  .article-detail{padding:28px 20px;border-radius:0;box-shadow:none;background:var(--bg)}
  .article-head h1{font-size:28px}
  .article-body{font-size:16px}
  .article-pager{flex-direction:column}
  .pager-link{justify-content:center}
  .floating-cta{right:16px;left:16px;bottom:16px;justify-content:center;border-radius:10px}
  .floating-cta .close-cta{margin-left:12px}
  .cta-bar{padding:40px 16px}
  .cta-inner h2{font-size:24px}
}
@media (max-width:640px){
  .related-grid{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .article-meta{flex-direction:column;gap:8px}
  .article-head h1{font-size:26px}
  .cta-btns{flex-direction:column}
  .cta-btns .btn{width:100%;justify-content:center}
  .body{padding-bottom:80px}
}

/* roulang page: category2 */
:root{
  --c-primary:#2E6B9B;
  --c-primary-dark:#245a84;
  --c-primary-light:#eaf1f7;
  --c-accent:#55A680;
  --c-accent-light:#e8f5ef;
  --c-orange:#F29A3E;
  --c-ink:#1C2B36;
  --c-text:#2d3b45;
  --c-muted:#667a88;
  --c-border:#E2E8EF;
  --c-bg:#F7F9FB;
  --c-card:#ffffff;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 2px 8px rgba(27,43,66,.06);
  --shadow-hover:0 8px 24px rgba(27,43,66,.10);
  --space-section:88px;
  --space-section-m:60px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px;}

/* Header */
.site-header{
  position:sticky;top:0;width:100%;z-index:1000;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(27,43,66,.07);}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;height:72px;}
.nav-left,.nav-right{display:flex;align-items:center;}
.nav-left ul,.nav-right ul{display:flex;align-items:center;list-style:none;gap:28px;margin:0;padding:0;}
.nav-left a,.nav-right a:not(.btn){
  font-size:15px;font-weight:500;color:var(--c-text);
  padding:8px 2px;position:relative;text-decoration:none;white-space:nowrap;
}
.nav-left a::after,.nav-right a:not(.btn)::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;
  background:var(--c-accent);opacity:0;transform:scaleX(.4);transition:opacity .2s,transform .2s;
}
.nav-left a:hover,.nav-right a:not(.btn):hover{color:var(--c-primary);}
.nav-left a.active::after,.nav-right a.active::after{opacity:1;transform:scaleX(1);}
.nav-right{justify-content:flex-end;}
.site-logo{
  position:absolute;left:50%;transform:translateX(-50%);
  font-size:22px;font-weight:800;color:var(--c-ink);letter-spacing:1px;
  text-decoration:none;white-space:nowrap;
}
.site-logo span{color:var(--c-accent);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid var(--c-border);border-radius:var(--radius-sm);
  background:#fff;cursor:pointer;color:var(--c-ink);font-size:18px;
  transition:border-color .2s,color .2s;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(46,107,155,.28);}
.btn-accent{background:var(--c-orange);color:#fff;}
.btn-accent:hover{background:#e0872c;color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(242,154,62,.30);}
.btn-outline{border-color:#C7D6E2;color:var(--c-primary);background:#fff;}
.btn-outline:hover{border-color:var(--c-primary);background:var(--c-primary-light);color:var(--c-primary-dark);}
.btn-outline-light{border-color:rgba(255,255,255,.8);color:#fff;background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* Section */
.section-pad{padding-top:var(--space-section);padding-bottom:var(--space-section);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--c-accent);
  background:var(--c-accent-light);border-radius:999px;padding:4px 14px;margin-bottom:14px;
}
.section-head h2{font-size:32px;line-height:1.3;color:var(--c-ink);font-weight:800;margin-bottom:14px;}
.section-head p{font-size:17px;color:var(--c-muted);max-width:680px;line-height:1.7;}
.text-primary{color:var(--c-primary);}

/* Hero */
.hero{
  position:relative;
  padding:96px 0 88px;
  background:linear-gradient(90deg,rgba(247,249,251,.97) 0%,rgba(247,249,251,.86) 42%,rgba(247,249,251,.40) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--c-border);
}
.hero-content{max-width:640px;position:relative;z-index:1;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;color:var(--c-accent);
  font-size:14px;font-weight:700;background:rgba(255,255,255,.85);
  border:1px solid rgba(85,166,128,.25);border-radius:999px;padding:6px 16px;margin-bottom:20px;
}
.hero h1{
  font-size:46px;line-height:1.2;color:var(--c-ink);font-weight:900;
  margin-bottom:18px;letter-spacing:1px;
}
.hero-sub{font-size:19px;color:var(--c-text);line-height:1.7;margin-bottom:30px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:42px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;border-top:1px solid rgba(46,107,155,.15);padding-top:24px;}
.hero-stats strong{display:block;font-size:34px;font-weight:800;color:var(--c-primary);line-height:1.1;}
.hero-stats span{font-size:14px;color:var(--c-muted);}

/* Features */
.features{background:#fff;}
.feature-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px;}
.feature-card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.feature-main{border-top:4px solid var(--c-accent);}
.feature-icon{
  width:52px;height:52px;border-radius:12px;background:var(--c-primary-light);
  color:var(--c-primary);font-size:22px;display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
}
.feature-card h3{font-size:20px;color:var(--c-ink);font-weight:700;margin-bottom:10px;}
.feature-card p{font-size:15px;color:var(--c-muted);line-height:1.7;margin-bottom:16px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.text-link i{transition:transform .2s;}
.text-link:hover i{transform:translateX(4px);}

/* Topics */
.topics{background:var(--c-bg);}
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.topic-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--c-border);box-shadow:var(--shadow);
  transition:transform .25s,box-shadow .25s;
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.topic-img{position:relative;display:block;overflow:hidden;}
.topic-img img{width:100%;height:180px;object-fit:cover;transition:transform .4s ease;}
.topic-card:hover .topic-img img{transform:scale(1.04);}
.topic-tag{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);
  color:var(--c-primary);font-size:13px;font-weight:600;
  padding:4px 12px;border-radius:999px;box-shadow:0 2px 8px rgba(27,43,66,.08);
}
.topic-body{padding:22px;}
.topic-body h3{font-size:18px;color:var(--c-ink);font-weight:700;margin-bottom:8px;}
.topic-body p{font-size:14px;color:var(--c-muted);line-height:1.65;margin-bottom:14px;}
.topic-link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.topic-link i{transition:transform .2s;}
.topic-link:hover i{transform:translateX(4px);}

/* Path */
.path{background:#fff;border-bottom:1px solid var(--c-border);}
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:var(--radius);
  padding:30px 24px;position:relative;transition:transform .25s,box-shadow .25s;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-num{font-size:30px;font-weight:800;color:var(--c-accent);line-height:1;margin-bottom:16px;display:block;}
.step h3{font-size:18px;color:var(--c-ink);font-weight:700;margin-bottom:8px;}
.step p{font-size:14px;color:var(--c-muted);line-height:1.65;}

/* Proof */
.proof{background:var(--c-bg);}
.proof-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center;}
.proof-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.stat{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);
  padding:28px;text-align:center;box-shadow:var(--shadow);
}
.stat strong{display:block;font-size:36px;font-weight:800;color:var(--c-primary);line-height:1.1;margin-bottom:4px;}
.stat span{font-size:14px;color:var(--c-muted);}
.proof-quote{
  background:var(--c-ink);color:#fff;border-radius:var(--radius);padding:40px 36px;
  box-shadow:0 8px 24px rgba(27,43,66,.16);
}
.proof-quote i{font-size:28px;color:var(--c-accent);margin-bottom:16px;display:block;}
.proof-quote p{font-size:18px;line-height:1.8;color:rgba(255,255,255,.92);margin-bottom:18px;}
.proof-quote span{font-size:14px;color:rgba(255,255,255,.65);}

/* FAQ */
.faq{background:#fff;}
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);
  margin-bottom:14px;transition:border-color .25s,box-shadow .25s;overflow:hidden;
}
.faq-item.active{border-color:var(--c-primary);box-shadow:0 4px 16px rgba(46,107,155,.10);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-ink);
  cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-q::after{
  content:'+';font-size:24px;font-weight:400;color:var(--c-accent);
  flex:0 0 auto;transition:transform .3s ease;
}
.faq-item.active .faq-q::after{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;padding:0 24px;transition:max-height .35s ease,padding .35s ease;}
.faq-item.active .faq-a{max-height:420px;padding:0 24px 22px;}
.faq-a p{font-size:15px;color:var(--c-text);line-height:1.75;}

/* CTA */
.cta{background:var(--c-bg);}
.cta-box{
  background:linear-gradient(135deg,var(--c-primary) 0%,#3a7ca6 100%);
  border-radius:20px;padding:64px 56px;text-align:center;
  position:relative;overflow:hidden;
}
.cta-box::after{
  content:'';position:absolute;right:-40px;bottom:-40px;width:240px;height:240px;border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-box h2{font-size:34px;color:#fff;font-weight:800;line-height:1.3;margin-bottom:14px;}
.cta-box p{font-size:17px;color:rgba(255,255,255,.82);max-width:520px;margin:0 auto 32px;line-height:1.7;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* Footer */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:70px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px;}
.footer-brand .f-logo{font-size:22px;font-weight:800;color:#fff;display:inline-block;margin-bottom:16px;}
.footer-brand .f-logo span{color:var(--c-accent);}
.footer-brand p{font-size:14px;line-height:1.75;max-width:340px;}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a,.contact-item{font-size:14px;color:rgba(255,255,255,.68);text-decoration:none;transition:color .2s;}
.footer-col ul a:hover{color:var(--c-accent);}
.contact-item{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.contact-item i{width:16px;color:var(--c-accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding-top:24px;
  font-size:13px;color:rgba(255,255,255,.48);
}
.footer-bottom a{color:rgba(255,255,255,.60);}
.footer-bottom a:hover{color:#fff;}

/* Responsive */
@media (max-width:1024px){
  .feature-grid{grid-template-columns:1fr 1fr;}
  .feature-main{grid-column:1/-1;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .path-grid{grid-template-columns:repeat(2,1fr);}
  .proof-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .section-pad{padding-top:var(--space-section-m);padding-bottom:var(--space-section-m);}
  .header-inner{height:60px;}
  .site-logo{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:19px;}
  .nav-toggle{display:inline-flex;position:relative;z-index:95;order:1;}
  .nav-left{
    position:fixed;top:0;left:0;width:100%;
    height:calc(100% - 110px);z-index:90;display:block;
    background:rgba(255,255,255,.98);padding:96px 32px 60px;
    transform:translateX(-100%);transition:transform .35s ease;
    overflow-y:auto;pointer-events:none;
  }
  .nav-right{
    position:fixed;bottom:0;left:0;width:100%;
    height:110px;z-index:91;display:flex;align-items:center;
    background:rgba(255,255,255,.98);padding:16px 32px;
    border-top:1px solid var(--c-border);
    transform:translateX(100%);transition:transform .35s ease;pointer-events:none;
  }
  .nav-left ul,.nav-right ul{flex-direction:column;align-items:flex-start;gap:22px;width:100%;}
  .nav-left ul{margin-top:8px;}
  .nav-right ul{gap:12px;}
  .site-header.nav-open .nav-left,
  .site-header.nav-open .nav-right{transform:translateX(0);pointer-events:auto;}
  .nav-left a{font-size:18px;}
  .nav-right .btn{width:100%;}
  .hero{padding:64px 0 56px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:17px;}
  .hero-stats{gap:24px;}
  .hero-stats strong{font-size:28px;}
  .cta-box{padding:48px 28px;}
  .cta-box h2{font-size:26px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-main{grid-column:auto;}
  .topic-grid{grid-template-columns:1fr;}
  .path-grid{grid-template-columns:1fr;}
  .proof-stats{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:26px;}
  .section-head p{font-size:15px;}
}