/* roulang page: index */
:root{
            --ink:#18202b;
            --muted:#69727f;
            --soft:#f5f7f9;
            --paper:#ffffff;
            --line:#e7ebef;
            --night:#151b25;
            --orange:#e97842;
            --orange-dark:#c95c2b;
            --teal:#2e8580;
            --blue:#486e9d;
            --radius:16px;
            --shadow:0 16px 40px rgba(27,39,51,.08);
            --container:1180px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{display:block;width:100%;object-fit:cover}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--orange-dark);font-size:12px;font-weight:800;letter-spacing:1px;text-transform:uppercase}
        .eyebrow::before{content:"";width:22px;height:2px;background:var(--orange)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}
        .section-head h2{margin:7px 0 0;font-size:30px;line-height:1.25;letter-spacing:0;font-weight:800}
        .section-head p{max-width:540px;margin:0;color:var(--muted)}
        .more{font-size:13px;font-weight:700;color:var(--orange-dark);white-space:nowrap}
        .more:hover{color:var(--ink)}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(231,235,239,.9);backdrop-filter:blur(16px)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:850;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:11px;background:var(--night);color:#fff;display:grid;place-items:center;font-size:15px;letter-spacing:-1px;box-shadow:0 8px 16px rgba(21,27,37,.18)}
        .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
        .nav-links a{padding:9px 13px;border-radius:9px;color:#59636f;font-size:14px;font-weight:650;transition:.2s}
        .nav-links a:hover,.nav-links a.active{color:var(--ink);background:#f2f4f6}
        .nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;height:38px;padding:0 11px;gap:7px;background:#fff}
        .nav-search span{font-size:15px;color:#8e98a3}
        .nav-search input{border:0;outline:0;width:105px;color:var(--ink);background:transparent;font-size:13px}
        .menu-toggle{display:none;border:0;background:transparent;font-size:25px;color:var(--ink)}
        .hero{background:#f4f6f7;padding:68px 0 62px;border-bottom:1px solid var(--line)}
        .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
        .hero h1{font-size:clamp(38px,5vw,65px);line-height:1.12;letter-spacing:0;margin:15px 0 20px;max-width:680px}
        .hero h1 em{font-style:normal;color:var(--orange)}
        .hero-copy{max-width:650px;color:#5d6874;font-size:16px;line-height:1.9;margin:0 0 28px}
        .hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 19px;font-size:14px;font-weight:750;transition:.2s}
        .btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(233,120,66,.22)}
        .btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px)}
        .btn-ghost{border-color:#d8dee4;background:#fff;color:var(--ink)}
        .btn-ghost:hover{border-color:var(--orange);color:var(--orange-dark);transform:translateY(-2px)}
        .hero-board{position:relative;min-height:320px;padding:27px;border-radius:22px;background:var(--night);color:#fff;box-shadow:var(--shadow);overflow:hidden}
        .hero-board::after{content:"";position:absolute;right:-70px;bottom:-80px;width:230px;height:230px;border:1px solid rgba(255,255,255,.12);border-radius:50%}
        .board-top{display:flex;justify-content:space-between;align-items:center;color:#aab5c1;font-size:12px;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:17px}
        .live-dot{display:inline-flex;align-items:center;gap:7px;color:#e7f5e9}
        .live-dot i{width:7px;height:7px;background:#72c989;border-radius:50%;display:block;box-shadow:0 0 0 4px rgba(114,201,137,.13)}
        .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:28px 0}
        .matrix-item{height:78px;border:1px solid rgba(255,255,255,.12);border-radius:12px;background:rgba(255,255,255,.05);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;color:#e9edf0}
        .matrix-item b{font-size:22px;font-weight:500}.matrix-item small{font-size:11px;color:#aab5c1}
        .board-bottom{display:flex;justify-content:space-between;align-items:end;color:#aab5c1;font-size:12px}
        .board-bottom strong{display:block;color:#fff;font-size:18px;margin-top:3px}
        section{padding:76px 0}
        .pain{background:#fff}
        .pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .pain-item{padding:25px 24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.2s}
        .pain-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
        .pain-icon{width:38px;height:38px;display:grid;place-items:center;background:#fff2ec;border-radius:10px;color:var(--orange-dark);font-size:20px;margin-bottom:15px}
        .pain-item h3{margin:0 0 7px;font-size:17px}.pain-item p{margin:0;color:var(--muted);font-size:14px}
        .solution{background:var(--soft)}
        .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
        .solution-item{padding:4px 0 4px 22px;border-left:2px solid var(--orange)}
        .solution-item .num{font-size:12px;color:var(--orange-dark);font-weight:800}.solution-item h3{margin:7px 0;font-size:18px}.solution-item p{margin:0;color:var(--muted);font-size:14px}
        .showcase{background:#fff}
        .showcase-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:stretch}
        .showcase-image{min-height:355px;border-radius:18px;overflow:hidden;position:relative;background:#18202b}
        .showcase-image img{height:100%;filter:saturate(.85)}
        .showcase-image::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,21,30,.72),transparent 60%)}
        .showcase-caption{position:absolute;z-index:1;left:28px;bottom:24px;color:#fff}.showcase-caption small{color:#f8b08e}.showcase-caption h3{font-size:27px;margin:5px 0 0}
        .showcase-list{display:grid;gap:12px}
        .showcase-row{display:flex;gap:17px;align-items:center;padding:15px;border:1px solid var(--line);border-radius:13px;transition:.2s}
        .showcase-row:hover{border-color:#e6ad91;box-shadow:0 8px 22px rgba(27,39,51,.06)}
        .showcase-row img{width:92px;height:68px;border-radius:9px;flex:none}
        .showcase-row h3{font-size:16px;margin:0 0 3px}.showcase-row p{font-size:13px;color:var(--muted);margin:0}
        .recognition{background:var(--night);color:#fff}
        .recognition .section-head p{color:#aeb8c4}.recognition .eyebrow{color:#f4a27d}
        .recognition-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.13)}
        .recognition-stat{background:var(--night);padding:28px 22px}.recognition-stat strong{font-size:34px;display:block;color:#fff}.recognition-stat span{color:#aeb8c4;font-size:13px}
        .latest{background:#fff}
        .content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
        .content-card{min-width:0}.cover{position:relative;aspect-ratio:16/10;border-radius:13px;overflow:hidden;background:#d9dde1}.cover img{height:100%;transition:.35s}.content-card:hover .cover img{transform:scale(1.05)}
        .badge{position:absolute;left:10px;top:10px;padding:3px 8px;border-radius:6px;background:rgba(21,27,37,.82);color:#fff;font-size:11px;font-weight:700}.badge.orange{background:var(--orange)}
        .content-info{padding:12px 2px}.content-info h3{font-size:16px;margin:0 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.rating{color:#d1773e;font-weight:700}
        .categories{background:#f7f8f8}
        .category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
        .category{padding:22px 18px;background:#fff;border:1px solid var(--line);border-radius:13px;min-height:155px;transition:.2s}.category:hover{border-color:#e5a487;transform:translateY(-3px)}
        .category span{font-size:24px;color:var(--teal)}.category h3{font-size:17px;margin:10px 0 6px}.category p{font-size:13px;color:var(--muted);margin:0}
        .ranking{background:#fff}
        .rank-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;border-top:1px solid var(--line)}
        .rank-item{display:grid;grid-template-columns:34px 1fr auto auto;gap:12px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}
        .rank-no{font-size:18px;font-weight:800;color:#a3adb6}.rank-item:nth-child(-n+3) .rank-no{color:var(--orange)}.rank-name{font-weight:700}.rank-type{font-size:11px;padding:3px 7px;border-radius:5px;background:#eef4f3;color:var(--teal)}.rank-score{font-size:13px;color:var(--orange-dark);font-weight:700}
        .news{background:var(--soft)}
        .news-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:30px}.news-feature{display:grid;grid-template-columns:1fr 1fr;gap:22px;background:#fff;border:1px solid var(--line);padding:15px;border-radius:15px}.news-feature img{height:190px;border-radius:10px}.news-feature h3{font-size:20px;line-height:1.4;margin:8px 0}.news-feature p,.news-item p{font-size:13px;color:var(--muted);margin:0}.news-date{color:var(--orange-dark);font-size:12px}.news-list{display:grid;gap:12px}.news-item{display:grid;grid-template-columns:86px 1fr;gap:14px;align-items:center;background:#fff;padding:10px;border-radius:11px}.news-item img{height:66px;border-radius:8px}.news-item h3{font-size:14px;line-height:1.45;margin:2px 0}
        .plans{background:#fff}
        .plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.plan{padding:28px;border:1px solid var(--line);border-radius:16px;position:relative}.plan.featured{border:2px solid var(--orange);padding:27px;box-shadow:var(--shadow)}.plan-label{position:absolute;right:18px;top:17px;font-size:11px;color:var(--orange-dark);font-weight:800}.plan h3{margin:0;font-size:19px}.plan-price{font-size:31px;font-weight:850;margin:13px 0}.plan-price small{font-size:12px;color:var(--muted);font-weight:400}.plan ul{padding:0;margin:18px 0 22px;list-style:none;border-top:1px solid var(--line)}.plan li{padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}.plan li::before{content:"✓";color:var(--teal);font-weight:bold;margin-right:7px}
        .guarantee{background:#f7f8f8}.guarantee-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.guarantee-item{padding:21px;border:1px solid var(--line);background:#fff;border-radius:13px}.guarantee-item strong{display:block;font-size:16px;margin-bottom:5px}.guarantee-item span{font-size:13px;color:var(--muted)}
        .conversion{padding:72px 0;background:#fff4ef}.conversion-grid{display:grid;grid-template-columns:1fr .85fr;gap:55px;align-items:center}.conversion h2{font-size:34px;line-height:1.25;margin:10px 0 14px}.conversion p{color:var(--muted);max-width:560px}.conversion-form{background:#fff;padding:25px;border-radius:16px;box-shadow:var(--shadow)}.field{display:grid;gap:7px;margin-bottom:13px}.field label{font-size:12px;font-weight:700;color:#58636d}.field input,.field textarea{border:1px solid var(--line);border-radius:9px;padding:10px 12px;outline:0;background:#fafbfb;color:var(--ink)}.field textarea{height:78px;resize:vertical}.field input:focus,.field textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(233,120,66,.12)}
        footer{background:var(--night);color:#fff;padding:52px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:45px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.14)}footer .brand{margin-bottom:13px}footer .brand-mark{background:var(--orange)}.footer-intro{color:#aeb8c4;font-size:13px;max-width:280px;margin:0}.footer-col h3{font-size:14px;margin:0 0 14px}.footer-col a{display:block;color:#aeb8c4;font-size:13px;margin:8px 0}.footer-col a:hover{color:#fff}.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:18px;color:#7f8b98;font-size:12px}
        @media(max-width:1024px){.hero-grid{gap:35px}.content-grid{grid-template-columns:repeat(3,1fr)}.category-grid{grid-template-columns:repeat(3,1fr)}.nav-links a{padding:8px 8px}.nav-search{display:none}}
        @media(max-width:768px){.container{width:min(100% - 34px,var(--container))}.nav-wrap{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:17px;right:17px;top:68px;padding:10px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px;flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:11px 13px}.hero{padding:48px 0}.hero-grid,.showcase-layout,.news-grid,.conversion-grid{grid-template-columns:1fr}.hero-board{min-height:280px}.hero-copy{font-size:15px}.pain-grid,.solution-grid,.plan-grid{grid-template-columns:1fr}.recognition-grid{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}.rank-grid{grid-template-columns:1fr}.news-feature{grid-template-columns:1fr}.news-feature img{height:210px}.guarantee-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
        @media(max-width:520px){section{padding:55px 0}.brand{font-size:15px}.brand-mark{width:34px;height:34px}.section-head{display:block}.section-head h2{font-size:25px}.section-head p{margin-top:10px}.hero h1{font-size:40px}.hero-actions .btn{width:100%}.matrix{gap:7px}.matrix-item{height:68px}.matrix-item b{font-size:19px}.content-grid{gap:14px}.content-info h3{font-size:14px}.category-grid{grid-template-columns:1fr 1fr;gap:10px}.category{min-height:145px;padding:17px 14px}.rank-item{grid-template-columns:27px 1fr auto}.rank-type{display:none}.showcase-image{min-height:265px}.guarantee-grid{grid-template-columns:1fr 1fr}.conversion h2{font-size:28px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}}