/* roulang page: index */
:root{
      --cream:#fbf7ef;--paper:#fffdf9;--ink:#231f20;--muted:#716b65;--line:#e7ded2;
      --orange:#ed7544;--orange-dark:#c6532e;--berry:#752f3b;--deep:#292426;
      --soft:#f2e8dc;--shadow:0 18px 45px rgba(62,39,29,.08);--radius:16px;
    }
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;font-size:16px}
    img{max-width:100%;display:block}a{color:inherit;text-decoration:none;transition:.25s ease}button,input,select,textarea{font:inherit}button{cursor:pointer}
    .container{max-width:1240px;margin:0 auto;padding:0 28px}.site-header{position:sticky;top:0;z-index:20;background:rgba(251,247,239,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
    .nav-wrap{min-height:76px;display:flex;align-items:center;gap:26px}.brand{font-size:21px;font-weight:800;letter-spacing:-.04em;white-space:nowrap;color:var(--berry)}.brand-mark{display:inline-flex;width:25px;height:25px;border-radius:7px;background:var(--orange);margin-right:9px;vertical-align:-5px;position:relative}.brand-mark:after{content:"";position:absolute;width:9px;height:9px;border:2px solid #fff;border-radius:50%;left:8px;top:8px}
    .main-nav{display:flex;align-items:center;justify-content:center;gap:22px;flex:1}.main-nav a{font-size:14px;color:#5e5752;position:relative;white-space:nowrap}.main-nav a:hover,.main-nav a.active{color:var(--berry)}.main-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--orange)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;border:0;background:var(--orange);color:#fff;padding:12px 20px;border-radius:7px;font-weight:700;font-size:14px;box-shadow:0 8px 18px rgba(237,117,68,.2)}.nav-cta:hover,.button:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px)}.button.alt{background:transparent;color:var(--berry);border:1px solid var(--berry);box-shadow:none}.button.alt:hover{background:var(--berry);color:#fff}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);padding:8px 11px;border-radius:6px;color:var(--berry)}
    section{padding:94px 0}.eyebrow{font-size:12px;color:var(--orange-dark);letter-spacing:.16em;text-transform:uppercase;font-weight:800;margin-bottom:13px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:38px}.section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.15;letter-spacing:-.055em;margin:0;color:var(--berry)}.section-head p{max-width:470px;margin:0;color:var(--muted)}
    .hero{padding:90px 0 72px;background:var(--paper);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}.hero h1{font-size:clamp(44px,6vw,76px);line-height:1.08;letter-spacing:-.075em;color:var(--berry);margin:0 0 25px;max-width:720px}.hero-copy{font-size:18px;color:var(--muted);max-width:620px;margin-bottom:30px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-visual{position:relative;min-height:405px;background:var(--deep);border-radius:20px;padding:27px;color:#fff;overflow:hidden;box-shadow:var(--shadow)}.hero-visual:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(41,36,38,.86),rgba(41,36,38,.28)),url('/assets/images/95a8322388e2a4ce.jpg') center/cover;opacity:.78}.hero-visual>*{position:relative}.visual-top{display:flex;justify-content:space-between;font-size:12px;color:#f5c2a9}.visual-title{font-size:38px;line-height:1.16;max-width:330px;margin-top:135px;letter-spacing:-.05em}.visual-index{position:absolute;right:26px;bottom:27px;font-size:12px;border-left:1px solid rgba(255,255,255,.5);padding-left:12px}.hero-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);margin-top:54px;border:1px solid var(--line)}.metric{background:var(--paper);padding:22px 20px}.metric strong{display:block;font-size:30px;line-height:1;color:var(--berry);margin-bottom:7px}.metric span{font-size:13px;color:var(--muted)}
    .dashboard{background:var(--soft);padding-top:65px;padding-bottom:65px}.dash-grid{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:1px;background:#d9cbbd;border:1px solid #d9cbbd}.dash-item{background:var(--paper);padding:25px;min-height:150px}.dash-item:first-child{background:var(--berry);color:#fff}.dash-item strong{display:block;font-size:32px;line-height:1.1;margin:10px 0 8px}.dash-item p{font-size:13px;color:var(--muted);margin:0}.dash-item:first-child p{color:#f5dcd0}.bar{height:4px;background:#eadfd4;margin-top:22px}.bar i{display:block;height:100%;background:var(--orange)}
    .services{background:var(--paper)}.service-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.service-card{border:1px solid var(--line);padding:29px;border-radius:var(--radius);min-height:190px;position:relative;transition:.3s;background:#fff}.service-card:hover,.result:hover,.quality-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6a58c}.service-card.large{grid-row:span 2;background:var(--berry);color:#fff;min-height:398px}.service-card.large p{color:#efd5cc}.service-no{font-size:12px;color:var(--orange-dark);font-weight:800}.large .service-no{color:#ffc0a6}.service-card h3{font-size:25px;letter-spacing:-.04em;margin:25px 0 10px}.service-card p{color:var(--muted);font-size:14px;margin:0;max-width:460px}.service-link{position:absolute;right:26px;bottom:24px;color:var(--orange-dark);font-weight:700;font-size:13px}.large .service-link{color:#ffc0a6}
    .scenes{background:#f3ebe2}.scene-list{border-top:1px solid var(--line)}.scene-row{display:grid;grid-template-columns:190px 1fr 150px;gap:22px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}.scene-row strong{color:var(--berry)}.scene-row p{margin:0;color:var(--muted);font-size:14px}.scene-tag{font-size:12px;color:var(--orange-dark);font-weight:700}
    .comparison{background:var(--paper)}.compare-grid{display:grid;grid-template-columns:1fr 70px 1fr;gap:16px;align-items:stretch}.compare-panel{padding:34px;border-radius:var(--radius);border:1px solid var(--line)}.compare-panel.after{background:var(--berry);color:#fff}.compare-panel h3{margin:0 0 22px;font-size:24px}.compare-panel p{font-size:14px;color:var(--muted);margin:12px 0;padding-bottom:12px;border-bottom:1px solid var(--line)}.after p{color:#f2d9d0;border-color:rgba(255,255,255,.2)}.compare-arrow{align-self:center;text-align:center;font-size:28px;color:var(--orange)}
    .results{background:var(--soft)}.result-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}.featured-result{min-height:360px;padding:34px;border-radius:var(--radius);background:linear-gradient(120deg,rgba(41,36,38,.92),rgba(41,36,38,.55)),url('/assets/images/0c1d5554e5501467.jpg') center/cover;color:#fff;display:flex;flex-direction:column;justify-content:end}.featured-result h3{font-size:34px;line-height:1.2;max-width:480px;margin:10px 0}.featured-result p{color:#ead8d1;max-width:520px}.result-index{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:14px 25px}.result-line{display:grid;grid-template-columns:70px 1fr auto;gap:16px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line)}.result-line:last-child{border:0}.result-line small{color:var(--orange-dark);font-weight:700}.result-line p{margin:0;font-size:14px}.result-line b{color:var(--berry);font-size:13px}
    .timeline{background:var(--paper)}.timeline-grid{display:grid;grid-template-columns:repeat(5,1fr);position:relative}.timeline-grid:before{content:"";position:absolute;top:15px;left:4%;right:4%;height:1px;background:var(--line)}.step{position:relative;padding:47px 18px 0 0}.step-dot{position:absolute;top:8px;left:0;width:15px;height:15px;border-radius:50%;background:var(--orange);border:4px solid var(--paper);box-shadow:0 0 0 1px var(--orange)}.step b{font-size:13px;color:var(--orange-dark)}.step h3{font-size:18px;margin:12px 0 7px}.step p{font-size:13px;color:var(--muted);margin:0;padding-right:15px}
    .process{background:#f3ebe2}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.process-item{padding:25px 24px 25px 0;border-right:1px solid var(--line);margin-right:24px}.process-item:last-child{border:0}.process-item span{font-size:30px;color:var(--orange);font-weight:800}.process-item h3{font-size:19px;margin:7px 0}.process-item p{font-size:13px;color:var(--muted);margin:0}
    .news{background:var(--paper)}.news-feature{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px;padding-bottom:31px;border-bottom:1px solid var(--line);margin-bottom:0}.news-feature-image{min-height:240px;background:url('/assets/images/9d5b38fd59b95589.jpg') center/cover;border-radius:var(--radius)}.news-feature h3{font-size:34px;line-height:1.25;margin:12px 0}.news-feature p{color:var(--muted)}.news-list{border-bottom:1px solid var(--line)}.news-row{display:grid;grid-template-columns:110px 115px 1fr 25px;gap:18px;align-items:center;padding:20px 0;border-top:1px solid var(--line)}.news-row time,.news-label{font-size:12px;color:var(--orange-dark);font-weight:700}.news-row h4{font-size:17px;margin:0}.news-row p{font-size:13px;color:var(--muted);margin:0}.news-row em{font-style:normal;font-size:24px;color:var(--orange)}
    .topics{background:var(--soft)}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.topic{min-height:180px;padding:23px;border:1px solid var(--line);background:var(--paper);border-radius:12px;display:flex;flex-direction:column;justify-content:space-between}.topic:nth-child(2){background:var(--berry);color:#fff}.topic:nth-child(2) p{color:#efd5cc}.topic h3{font-size:22px;margin:0}.topic p{font-size:13px;color:var(--muted);margin:0}
    .security{background:var(--deep);color:#fff}.security .section-head h2{color:#fff}.security .section-head p{color:#d3c2bb}.security-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#4a3c3c}.security-item{background:var(--deep);padding:26px;min-height:170px}.security-icon{color:#ff9a70;font-size:24px}.security-item h3{font-size:18px;margin:17px 0 7px}.security-item p{font-size:13px;color:#cdbbb5;margin:0}
    .quality{background:var(--paper)}.quality-list{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.quality-item{padding:25px 18px 25px 0;margin-right:18px;border-right:1px solid var(--line);transition:.3s}.quality-item:last-child{border:0}.quality-item b{font-size:12px;color:var(--orange-dark)}.quality-item h3{font-size:17px;margin:14px 0 7px}.quality-item p{font-size:13px;color:var(--muted);margin:0}
    .quick{background:#f3ebe2}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.quick-item{padding:24px;background:var(--paper);border-left:4px solid var(--orange);border-radius:8px}.quick-item h3{margin:0 0 9px;font-size:18px}.quick-item p{font-size:14px;color:var(--muted);margin:0}
    .faq{background:var(--paper)}.accordion{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-btn{width:100%;display:flex;justify-content:space-between;text-align:left;background:none;border:0;padding:22px 0;color:var(--ink);font-weight:700;font-size:17px}.faq-btn:focus{outline:3px solid rgba(237,117,68,.25);outline-offset:3px}.faq-btn span:last-child{color:var(--orange);font-size:22px}.faq-answer{display:none;color:var(--muted);font-size:14px;max-width:760px;padding:0 40px 22px 0}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-btn span:last-child{transform:rotate(45deg)}
    .contact{background:var(--berry);color:#fff}.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:75px;align-items:start}.contact h2{font-size:clamp(34px,4vw,55px);line-height:1.14;letter-spacing:-.06em;margin:0 0 20px;color:#fff}.contact p{color:#efd8d0}.contact-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:28px}.contact-tags span{font-size:12px;border:1px solid rgba(255,255,255,.35);padding:5px 10px;border-radius:30px}.form-box{background:var(--paper);padding:28px;border-radius:14px;color:var(--ink)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field.full{grid-column:1/-1}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);background:#fff;padding:12px 13px;border-radius:6px;outline:0}.field textarea{min-height:108px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(237,117,68,.14)}.form-note{font-size:12px;color:var(--muted);margin:14px 0}.form-message{font-size:13px;color:var(--orange-dark);display:none;margin-top:12px}
    footer{background:#211d1e;color:#fff;padding:53px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}.footer-brand{font-size:22px;font-weight:800;color:#fff}.footer-desc{color:#bcaeaa;font-size:13px;max-width:310px;margin-top:15px}.footer h3{font-size:14px;margin:0 0 16px;color:#ffad8d}.footer a{display:block;color:#c9bbb6;font-size:13px;margin:8px 0}.footer a:hover{color:#fff}.copyright{border-top:1px solid #44383a;padding-top:20px;color:#968681;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:1024px){.main-nav{gap:13px}.main-nav a{font-size:13px}.hero-grid{gap:35px}.service-grid,.result-layout{grid-template-columns:1fr}.hero-visual{min-height:330px}.timeline-grid{grid-template-columns:repeat(5,1fr)}}
    @media(max-width:768px){.container{padding:0 20px}.site-header{position:relative}.nav-wrap{min-height:68px}.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:16px 20px;flex-direction:column;align-items:stretch;gap:0}.main-nav.show{display:flex}.main-nav a{padding:12px 0;border-bottom:1px solid var(--line)}.main-nav a.active:after{display:none}.nav-cta{display:none}section{padding:68px 0}.hero{padding:62px 0}.hero-grid,.contact-grid{grid-template-columns:1fr}.hero h1{font-size:45px}.hero-copy{font-size:16px}.hero-visual{min-height:310px}.visual-title{margin-top:95px;font-size:32px}.hero-metrics{grid-template-columns:repeat(2,1fr);margin-top:30px}.dash-grid{grid-template-columns:repeat(2,1fr)}.section-head{display:block}.section-head p{margin-top:16px}.service-card.large{min-height:300px}.scene-row{grid-template-columns:110px 1fr 80px;gap:12px}.compare-grid{grid-template-columns:1fr}.compare-arrow{transform:rotate(90deg)}.timeline-grid{display:block}.timeline-grid:before{top:0;bottom:0;left:6px;width:1px;height:auto}.step{padding:0 0 27px 35px}.step-dot{top:5px;left:0}.process-grid{grid-template-columns:repeat(2,1fr)}.process-item:nth-child(2){border-right:0;margin-right:0}.process-item:nth-child(3),.process-item:nth-child(4){border-top:1px solid var(--line);padding-top:20px}.news-feature{grid-template-columns:1fr}.news-row{grid-template-columns:80px 90px 1fr 18px;gap:9px}.news-row p{display:none}.topic-grid,.security-grid,.quality-list,.quick-grid{grid-template-columns:repeat(2,1fr)}.quality-item:nth-child(2){border-right:0}.quality-item:nth-child(n+3){border-top:1px solid var(--line);padding-top:20px}.contact-grid{gap:35px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:520px){.brand{font-size:18px}.hero h1{font-size:39px}.hero-visual{min-height:275px}.visual-title{font-size:27px;margin-top:85px}.metric{padding:16px}.metric strong{font-size:25px}.dash-grid,.topic-grid,.security-grid,.quality-list,.quick-grid,.process-grid{grid-template-columns:1fr}.dash-item{min-height:125px}.scene-row{grid-template-columns:1fr;gap:5px}.scene-row a{justify-self:start}.news-row{grid-template-columns:70px 1fr 18px}.news-label{display:none}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}