/* roulang page: index */
:root{--ink:#211d1d;--muted:#756d69;--paper:#fbf8f4;--cream:#f3ebe2;--line:#e4dcd5;--berry:#b94b55;--berry-dark:#873841;--coral:#d97869;--white:#fff;--dark:#292124;--shadow:0 16px 45px rgba(49,31,28,.09);--radius:10px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}a{color:inherit;text-decoration:none;transition:.25s ease}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(1200px,calc(100% - 48px));margin:0 auto}.site-header{height:78px;position:sticky;top:0;z-index:20;background:rgba(251,248,244,.96);border-bottom:1px solid var(--line)}.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{font-size:20px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}.brand-mark{display:inline-block;width:9px;height:9px;background:var(--berry);margin:0 9px 2px 0;border-radius:50%}.main-nav{display:flex;align-items:center;gap:27px;margin-left:auto}.main-nav a{font-size:14px;color:#615955;position:relative}.main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-9px;height:2px;background:var(--berry);transition:.25s}.main-nav a:hover,.main-nav a.active{color:var(--ink)}.main-nav a:hover:after,.main-nav a.active:after{right:0}.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:45px;padding:0 21px;border:1px solid var(--berry);background:var(--berry);color:#fff;font-weight:700;border-radius:4px;transition:.25s}.nav-cta:hover,.btn:hover{background:var(--berry-dark);border-color:var(--berry-dark);color:#fff;transform:translateY(-2px)}.btn.ghost{background:transparent;color:var(--berry)}.btn.ghost:hover{color:#fff}.menu-toggle{display:none;background:none;border:0;font-size:25px;color:var(--ink)}main{overflow:hidden}.hero{padding:92px 0 84px;background:var(--paper)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:76px;align-items:center}.eyebrow,.section-kicker{color:var(--berry);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.hero h1{font-size:clamp(42px,5.3vw,78px);line-height:1.13;letter-spacing:-.075em;margin:17px 0 23px;max-width:680px}.hero h1 em{color:var(--berry);font-style:normal;position:relative}.hero h1 em:after{content:"";position:absolute;left:0;right:0;bottom:-5px;height:5px;background:var(--coral);opacity:.35}.hero-copy{max-width:640px;color:var(--muted);font-size:17px;line-height:1.9}.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}.hero-meta{display:flex;gap:25px;margin-top:36px;padding-top:19px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.hero-meta strong{display:block;color:var(--ink);font-size:15px}.hero-visual{position:relative;min-height:470px;background:#ddd0c7;overflow:hidden}.hero-visual img{width:100%;height:470px;object-fit:cover;filter:saturate(.75)}.hero-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(37,24,24,.02),rgba(48,24,26,.48))}.archive-card{position:absolute;z-index:1;bottom:25px;left:-28px;background:var(--white);padding:23px 25px;width:255px;box-shadow:var(--shadow);border-left:4px solid var(--berry)}.archive-card small{color:var(--berry);font-weight:800}.archive-card h3{font-size:22px;line-height:1.35;margin:8px 0}.archive-card p{font-size:13px;color:var(--muted);margin:0}.section{padding:94px 0}.section.alt{background:var(--cream)}.section.dark{background:var(--dark);color:#fff}.section-head{display:flex;justify-content:space-between;gap:35px;align-items:end;margin-bottom:43px}.section-head h2{font-size:clamp(29px,3.6vw,48px);line-height:1.2;letter-spacing:-.055em;margin:10px 0 0}.section-intro{max-width:500px;color:var(--muted);font-size:15px;margin:0}.dark .section-intro{color:#c7bdbc}.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.kpi{padding:28px 25px;border-right:1px solid var(--line)}.kpi:last-child{border-right:0}.kpi-number{font-size:42px;line-height:1;color:var(--berry);font-weight:800;letter-spacing:-.06em}.kpi-number span{font-size:18px;margin-left:4px}.kpi h3{font-size:16px;margin:17px 0 4px}.kpi p{font-size:13px;color:var(--muted);margin:0}.service-list{border-top:1px solid var(--line)}.service-row{display:grid;grid-template-columns:72px 1.05fr 1.5fr 35px;align-items:center;gap:22px;padding:25px 0;border-bottom:1px solid var(--line);transition:.25s}.service-row:hover{padding-left:12px;background:rgba(255,255,255,.5)}.service-no{color:var(--berry);font-weight:800}.service-row h3{font-size:21px;margin:0}.service-row p{color:var(--muted);font-size:14px;margin:0}.arrow{font-size:25px;color:var(--berry)}.scene-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:22px}.scene-feature{min-height:385px;position:relative;overflow:hidden;color:#fff}.scene-feature img{width:100%;height:385px;object-fit:cover;filter:brightness(.65)}.scene-feature .scene-text{position:absolute;left:30px;bottom:25px;right:25px}.scene-feature h3{font-size:30px;margin:8px 0}.scene-small{display:grid;gap:22px}.scene-item{background:var(--white);padding:24px;border:1px solid var(--line);min-height:181px}.tag{display:inline-block;color:var(--berry);font-size:11px;font-weight:800;letter-spacing:.08em;border:1px solid #dfb7b2;padding:2px 8px}.scene-item h3{font-size:20px;margin:12px 0 4px}.scene-item p{font-size:13px;color:var(--muted);margin:0}.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#66565a;max-width:980px}.compare-col{padding:34px;background:#372c30}.compare-col.result{background:var(--berry-dark)}.compare-col h3{font-size:22px;margin:0 0 22px}.compare-row{padding:14px 0;border-top:1px solid rgba(255,255,255,.2);font-size:14px;color:#ddd1d0}.compare-row strong{display:block;color:#fff;font-size:13px;margin-bottom:3px}.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line);margin-top:25px}.milestone{position:relative;padding:28px 20px 0 0}.milestone:before{content:"";position:absolute;top:-7px;left:0;width:13px;height:13px;background:var(--berry);border:3px solid var(--paper);outline:1px solid var(--berry);border-radius:50%}.milestone:not(:last-child){border-right:1px solid var(--line);margin-right:20px}.milestone b{color:var(--berry);font-size:12px}.milestone h3{font-size:18px;margin:11px 0 5px}.milestone p{font-size:13px;color:var(--muted);margin:0}.news-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:65px}.lead-news{padding:30px;background:var(--white);border-left:5px solid var(--berry);box-shadow:var(--shadow)}.lead-news h3{font-size:28px;line-height:1.35;margin:15px 0}.lead-news p,.news-item p{color:var(--muted);font-size:14px}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:105px 1fr;gap:19px;padding:19px 0;border-bottom:1px solid var(--line)}.news-date{font-size:13px;color:var(--berry);font-weight:700}.news-item h3{font-size:17px;margin:0}.news-item p{margin:4px 0 0;font-size:13px}.assurance{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px;align-items:start}.assurance h2{font-size:39px;line-height:1.25;margin:10px 0}.assurance-list{border-top:1px solid var(--line)}.assurance-item{display:grid;grid-template-columns:80px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.assurance-item b{color:var(--berry)}.assurance-item h3{font-size:17px;margin:0}.assurance-item p{font-size:14px;color:var(--muted);margin:3px 0 0}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.quick details{background:var(--white);border:1px solid var(--line);padding:20px 22px}.quick summary{font-weight:700;cursor:pointer;list-style:none}.quick summary::-webkit-details-marker{display:none}.quick summary:after{content:"＋";float:right;color:var(--berry)}.quick details[open] summary:after{content:"－"}.quick details p{font-size:14px;color:var(--muted);margin:15px 0 0}.contact-section{background:var(--dark);color:#fff;padding:95px 0}.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px}.contact-copy h2{font-size:clamp(31px,4vw,52px);line-height:1.2;margin:12px 0 20px;letter-spacing:-.05em}.contact-copy p{color:#cfc2c1;max-width:430px}.contact-note{margin-top:45px;border-left:2px solid var(--coral);padding-left:17px;color:#d8ccca;font-size:13px}.faq-list{border-top:1px solid rgba(255,255,255,.22)}.faq-list details{border-bottom:1px solid rgba(255,255,255,.22);padding:18px 0}.faq-list summary{font-weight:700;cursor:pointer}.faq-list summary:after{content:"＋";float:right;color:#ef9c8e}.faq-list details[open] summary:after{content:"－"}.faq-list p{color:#cfc2c1;font-size:14px;margin:12px 0 0}.form-box{background:#fff;color:var(--ink);padding:30px;box-shadow:var(--shadow)}.form-box h3{font-size:22px;margin:0 0 20px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.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 #d9cfca;background:#fff;padding:11px 13px;border-radius:3px;outline:0;transition:.2s}.field textarea{min-height:105px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--berry);box-shadow:0 0 0 3px rgba(185,75,85,.14)}.form-actions{margin-top:20px;display:flex;align-items:center;gap:15px}.form-hint{font-size:12px;color:var(--muted)}.form-success,.form-error{display:none;font-size:13px;padding:10px 12px;margin-top:14px}.form-success{color:#356a4b;background:#e9f4ed}.form-error{color:#9d3737;background:#fae8e6}.site-footer{background:#211d1d;color:#ddd1cf;padding:56px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .8fr;gap:50px}.footer-brand{font-size:21px;font-weight:800;color:#fff}.footer-copy{font-size:13px;color:#a99c9a;max-width:300px;margin-top:15px}.footer-col h3{font-size:13px;color:#fff;margin:0 0 15px}.footer-col a{display:block;color:#b8abaa;font-size:13px;margin:7px 0}.footer-col a:hover{color:#f29c91}.copyright{border-top:1px solid #403638;margin-top:42px;padding-top:20px;font-size:12px;color:#918382;display:flex;justify-content:space-between;gap:20px}.reveal{animation:rise .7s 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h1{font-size:45px}.hero-copy{font-size:15px}.hero-visual,.hero-visual img{min-height:330px;height:330px}.archive-card{left:15px;bottom:15px}.section{padding:66px 0}.section-head{display:block;margin-bottom:30px}.section-intro{margin-top:15px}.service-row{grid-template-columns:35px 1fr 25px;gap:12px}.service-row p{grid-column:2/-1}.scene-grid,.compare-wrap,.news-layout,.assurance,.contact-grid{grid-template-columns:1fr}.scene-feature{min-height:300px}.scene-feature img{height:300px}.timeline{grid-template-columns:1fr;border-left:1px solid var(--line);border-top:0;margin-left:7px}.milestone{padding:0 0 28px 25px}.milestone:before{top:4px;left:-7px}.milestone:not(:last-child){border-right:0;border-bottom:0;margin:0}.quick-grid{grid-template-columns:1fr}.contact-grid{gap:45px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:6px}}@media(max-width:430px){.kpi-number{font-size:34px}.kpi{padding:23px 15px}.hero-actions .btn{width:100%}.hero-meta{gap:15px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}