/* roulang page: index */
:root{--brand:#1769e0;--brand-dark:#0e4fb7;--mint:#dff7ee;--ink:#142238;--muted:#63738b;--line:#dce6f2;--bg:#f5f8fc;--radius:22px;--shadow:0 16px 45px rgba(26,69,120,.10);--max:1200px;--space:clamp(72px,9vw,124px)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;object-fit:cover}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.section{padding:var(--space) 0}.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--brand);font-weight:700;text-transform:uppercase}.section-head{max-width:720px;margin-bottom:38px}.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 15px}.section-head p{color:var(--muted);margin:0;font-size:16px}.topline{height:58px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em}.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;box-shadow:0 8px 18px #1769e044}.top-contact{display:flex;align-items:center;gap:24px;color:var(--muted);font-size:14px}.navline{height:62px;border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:10}.navinner{height:100%;display:flex;align-items:center;justify-content:space-between}.navlinks{display:flex;align-items:center;gap:5px}.navlinks a{padding:9px 13px;border-radius:10px;font-size:14px;color:#52637c;transition:.2s}.navlinks a:hover,.navlinks a.active{color:var(--brand);background:#edf5ff}.navlinks a.active{font-weight:700}.mobile-toggle{display:none;width:44px;height:44px;background:none;border:0;color:var(--ink);font-size:22px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;gap:8px}.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px #1769e033}.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px #1769e044}.btn-secondary{background:#fff;border-color:#bcd1ed;color:var(--brand)}.btn-secondary:hover{background:#edf5ff;border-color:var(--brand)}.btn:focus,input:focus,select:focus,textarea:focus,button:focus{outline:3px solid #74aaf055;outline-offset:3px}.hero{background:#f1f6fc;padding:clamp(58px,8vw,100px) 0 80px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;inset:auto -8% -45% 42%;height:500px;background:radial-gradient(circle,#d9eaff,transparent 65%);pointer-events:none}.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:70px;align-items:center;position:relative;z-index:1}.hero h1{font-size:clamp(40px,5.6vw,70px);line-height:1.12;letter-spacing:-.065em;margin:14px 0 23px;max-width:690px}.hero-copy{font-size:17px;color:#53657d;max-width:650px;margin-bottom:30px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-visual{position:relative}.hero-image{height:440px;width:100%;border-radius:28px;box-shadow:var(--shadow);border:8px solid #fff}.dashboard{position:absolute;right:-25px;bottom:24px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;width:220px;box-shadow:var(--shadow)}.progress{height:7px;border-radius:9px;background:#e9eff7;overflow:hidden}.progress i{display:block;width:76%;height:100%;background:var(--brand);border-radius:9px}.dots{display:flex;gap:7px;margin-top:18px}.dot{width:8px;height:8px;border:0;border-radius:50%;padding:0;background:#b7c7dc}.dot.on{background:var(--brand);width:22px;border-radius:8px}.number-row{display:flex;gap:25px;margin-top:30px}.number-row strong{display:block;font-size:24px}.number-row span{display:block;color:var(--muted);font-size:12px}.feature-track{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}.feature{padding:30px;border-right:1px solid var(--line);background:#fff}.feature:last-child{border:0}.feature-num{color:var(--brand);font-weight:800;font-size:14px}.feature h3{font-size:21px;margin:12px 0 7px}.feature p,.card p,.scene p,.story p{color:var(--muted);font-size:14px;margin:0}.metric{color:#149b73;font-weight:800;font-size:13px;margin-top:17px}.product{background:var(--bg)}.product-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:70px;align-items:center}.report{background:#fff;padding:14px;border-radius:24px;box-shadow:var(--shadow);border:1px solid var(--line)}.report img{border-radius:15px;height:390px;width:100%}.tag{display:inline-flex;background:#edf5ff;color:var(--brand);padding:5px 10px;border-radius:8px;font-size:12px;margin:4px 3px 4px 0}.checklist{list-style:none;padding:0;margin:24px 0}.checklist li{padding:10px 0 10px 28px;border-bottom:1px solid var(--line);position:relative;font-size:15px}.checklist li:before{content:"✓";position:absolute;left:0;color:#15966e;font-weight:800}.scenes{display:grid;grid-template-columns:1.1fr .9fr;gap:26px}.scene-main{min-height:420px;border-radius:24px;padding:36px;background:url('/assets/images/backpic/back-3.webp') center/cover;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;position:relative;overflow:hidden}.scene-main:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#10233cdd,transparent 75%)}.scene-main>*{position:relative}.scene-list{display:grid;gap:12px}.scene-item{padding:22px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:.2s}.scene-item:hover,.card:hover,.story:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b9d2ef}.scene-item strong{display:block;margin-bottom:5px}.topic-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.topic{min-height:150px;padding:24px;border-radius:18px;border:1px solid var(--line);background:#fff;transition:.2s}.topic:hover{border-color:var(--brand);background:#f3f8ff}.topic span{font-size:12px;color:var(--brand)}.topic h3{font-size:18px;margin:10px 0}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}.timeline:before{content:"";position:absolute;top:24px;left:10%;right:10%;height:2px;background:#cfe0f4}.step{position:relative;padding:0 18px;text-align:center}.step b{display:grid;place-items:center;margin:auto;width:50px;height:50px;border-radius:50%;background:#fff;border:2px solid var(--brand);color:var(--brand);position:relative;z-index:1}.step h3{font-size:17px;margin:18px 0 6px}.step p{font-size:13px;color:var(--muted)}.dark-section{background:#13243a;color:#fff}.dark-section .section-head p{color:#afbed0}.compare{display:grid;grid-template-columns:1fr 1fr;border:1px solid #40536b;border-radius:20px;overflow:hidden}.compare>div{padding:28px}.compare>div+div{background:#1b527f;border-left:1px solid #40536b}.compare ul{padding:0;list-style:none;margin:14px 0 0}.compare li{padding:10px 0;border-bottom:1px solid #ffffff20;color:#c5d1df;font-size:14px}.stories{display:flex;gap:16px;overflow:auto;padding-bottom:10px}.story{min-width:310px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;transition:.2s}.story img{height:155px;border-radius:13px;margin-bottom:18px;width:100%}.story strong{display:block;margin:4px 0 10px}.stats{background:var(--brand);color:#fff}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}.stats strong{font-size:38px;display:block;letter-spacing:-.05em}.stats span{font-size:13px;color:#dceaff}.quote{max-width:850px;margin:auto;text-align:center}.quote-mark{font-size:64px;line-height:1;color:#9bc7ff}.quote blockquote{font-size:clamp(22px,3vw,32px);line-height:1.5;margin:8px 0 22px}.matrix{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;display:table}.matrix th,.matrix td{padding:17px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}.matrix th{background:#edf5ff;color:var(--brand)}.matrix td:not(:first-child){text-align:center;color:#1a9a73;font-weight:700}.news-layout{display:grid;grid-template-columns:1fr 330px;gap:24px}.news-list{border-top:1px solid var(--line)}.news-item{display:flex;justify-content:space-between;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.news-item h3{font-size:17px;margin:0 0 5px}.news-item p{font-size:13px;color:var(--muted);margin:0}.news-item time{white-space:nowrap;color:#8a9ab0;font-size:12px}.news-feature{padding:25px;border-radius:20px;background:#e9f6f1}.news-feature h3{font-size:21px;margin:15px 0}.objection{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.objection article{padding:24px;border:1px solid var(--line);border-radius:17px;background:#fff}.objection h3{font-size:17px;margin:0 0 9px}.faq{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;min-height:58px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink);padding:14px 0}.faq-q span:last-child{font-size:22px;color:var(--brand);transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s}.faq-item.open .faq-a{max-height:150px;padding:0 35px 18px 0}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}.contact{background:#edf5ff}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}.form{background:#fff;padding:30px;border-radius:22px;box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--ink);background:#fff}.field textarea{min-height:90px;resize:vertical}.footer{background:#102238;color:#c0ccda;padding:58px 0 90px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:35px}.footer h3{font-size:15px;color:#fff;margin:0 0 15px}.footer p,.footer a{font-size:13px;color:#aab9ca}.footer a{display:block;margin:8px 0}.footer a:hover{color:#fff}.footer-bottom{border-top:1px solid #ffffff1c;margin-top:40px;padding-top:22px;font-size:12px;color:#8fa1b5}.sticky{position:fixed;z-index:20;bottom:18px;left:50%;transform:translateX(-50%);width:min(720px,calc(100% - 30px));background:#fff;border:1px solid #cbdcf0;border-radius:16px;box-shadow:0 15px 40px #0e315333;padding:10px 13px 10px 20px;display:flex;justify-content:space-between;align-items:center;gap:15px}.sticky strong{font-size:14px}.sticky small{display:block;color:var(--muted)}.to-top{border:0;background:#eef5fd;color:var(--brand);border-radius:9px;width:42px;height:42px}
@media(max-width:900px){.hero-grid,.product-grid,.scenes,.contact-grid,.news-layout{grid-template-columns:1fr;gap:35px}.hero-visual{max-width:650px}.dashboard{right:10px}.footer-grid{grid-template-columns:repeat(2,1fr)}.navlinks{position:absolute;display:none;left:20px;right:20px;top:61px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{padding:12px}.mobile-toggle{display:block}.navinner>.btn{display:none}.top-contact{gap:10px}.top-contact span{display:none}}
@media(max-width:620px){.container{width:min(100% - 28px,var(--max))}.topline{height:55px}.brand{font-size:14px}.brand-mark{width:31px;height:31px}.hero{padding-top:55px}.hero h1{font-size:40px}.hero-copy{font-size:15px}.hero-image{height:300px}.dashboard{width:185px;padding:13px;bottom:12px}.feature-track,.topic-wall,.objection,.stats-grid,.timeline{grid-template-columns:1fr}.feature{border-right:0;border-bottom:1px solid var(--line)}.timeline{gap:22px}.timeline:before{top:0;bottom:0;left:24px;width:2px;height:auto;right:auto}.step{text-align:left;padding-left:70px}.step b{position:absolute;left:0;top:0}.report img{height:280px}.compare{grid-template-columns:1fr}.compare>div+div{border-left:0;border-top:1px solid #40536b}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.sticky{bottom:8px;padding-left:13px}.sticky small{display:none}.sticky strong{font-size:12px}.sticky .btn{min-height:42px;padding:0 13px}.news-item{display:block}.news-item time{display:block;margin-top:6px}}

/* roulang page: category2 */
:root{--brand:#1769e0;--brand-dark:#0e4fb7;--mint:#dff7ee;--ink:#142238;--muted:#63738b;--line:#dce6f2;--bg:#f5f8fc;--radius:22px;--shadow:0 16px 45px rgba(26,69,120,.10);--max:1200px;--space:clamp(68px,8vw,112px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.section{padding:var(--space) 0}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--brand);font-weight:800}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.045em;margin:10px 0 15px}
.section-head p{color:var(--muted);margin:0;font-size:16px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;box-shadow:0 8px 18px #1769e044}
.topline{height:62px;border-bottom:1px solid var(--line);background:#fff}
.topinner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.top-actions{display:flex;align-items:center;gap:18px;color:var(--muted);font-size:13px}
.phone{font-weight:700;color:var(--ink)}
.navline{height:62px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20;box-shadow:0 4px 18px rgba(26,69,120,.04)}
.navinner{height:100%;display:flex;align-items:center;justify-content:space-between}
.navlinks{display:flex;align-items:center;gap:5px}
.navlinks a{padding:9px 13px;border-radius:10px;font-size:14px;color:#52637c;transition:.2s}
.navlinks a:hover,.navlinks a.active{color:var(--brand);background:#edf5ff}
.navlinks a.active{font-weight:700}
.mobile-toggle{display:none;width:44px;height:44px;background:none;border:0;color:var(--ink);font-size:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;gap:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px #1769e033}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px #1769e044}
.btn-secondary{background:#fff;border-color:#bcd1ed;color:var(--brand)}
.btn-secondary:hover{background:#edf5ff;border-color:var(--brand)}
.btn:focus,input:focus,select:focus,textarea:focus,button:focus{outline:3px solid #74aaf055;outline-offset:3px}
.page-intro{background:#f1f6fc;padding:76px 0 72px;position:relative;overflow:hidden}
.page-intro:after{content:"";position:absolute;width:420px;height:420px;right:-100px;top:-180px;border-radius:50%;background:#dcecff}
.intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center;position:relative;z-index:1}
.page-intro h1{font-size:clamp(38px,5.3vw,64px);line-height:1.12;letter-spacing:-.06em;margin:12px 0 20px}
.intro-copy{font-size:17px;color:#53657d;max-width:700px}
.data-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:25px;box-shadow:var(--shadow)}
.panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
.panel-title{font-weight:800}
.live{font-size:12px;color:#15966e;background:var(--mint);padding:4px 9px;border-radius:20px}
.skeleton{height:9px;background:#e9f0f8;border-radius:10px;margin:13px 0}
.skeleton.blue{background:#9fc5fa;width:78%}
.pose-line{height:120px;border:1px dashed #b8d3f0;border-radius:16px;margin:20px 0;position:relative;background:linear-gradient(90deg,transparent 49%,#e8f2fd 50%,transparent 51%),linear-gradient(0deg,transparent 49%,#e8f2fd 50%,transparent 51%);background-size:38px 38px}
.pose-line:before,.pose-line:after{content:"";position:absolute;border:3px solid var(--brand);border-radius:50%}
.pose-line:before{width:18px;height:18px;left:47%;top:23px}
.pose-line:after{width:72px;height:48px;left:38%;top:47px;border-radius:50% 50% 45% 45%}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.metric{background:#f5f8fc;border-radius:12px;padding:12px}
.metric strong{display:block;font-size:20px;color:var(--brand)}
.metric span{font-size:11px;color:var(--muted)}
.anchorbar{padding:17px 0;border-bottom:1px solid var(--line);background:#fff}
.anchor-list{display:flex;gap:10px;overflow:auto;scrollbar-width:none}
.anchor-list a{white-space:nowrap;padding:8px 14px;background:#f2f6fb;border-radius:10px;color:#52637c;font-size:13px}
.anchor-list a:hover,.anchor-list a.active{background:#e5f0ff;color:var(--brand)}
.capability-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.capability{padding:25px;border:1px solid var(--line);border-radius:18px;background:#fff;transition:.2s}
.capability:hover,.scene-card:hover,.choice:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b9d2ef}
.capability img{height:170px;width:100%;border-radius:13px;margin-bottom:18px}
.capability h3,.scene-card h3,.choice h3{font-size:20px;margin:0 0 8px}
.capability p,.scene-card p,.choice p{color:var(--muted);font-size:14px;margin:0}
.tag{display:inline-flex;background:#edf5ff;color:var(--brand);padding:5px 10px;border-radius:8px;font-size:12px;margin:4px 3px 13px 0}
.method{background:#f5f8fc}
.method-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:center}
.method-photo{height:390px;width:100%;border-radius:24px;box-shadow:var(--shadow)}
.steps{display:grid;gap:20px}
.step{display:grid;grid-template-columns:54px 1fr;gap:16px;align-items:start}
.step-num{width:46px;height:46px;border-radius:14px;background:#e7f1ff;color:var(--brand);display:grid;place-items:center;font-weight:800}
.step h3{margin:0 0 4px;font-size:18px}
.step p{margin:0;color:var(--muted);font-size:14px}
.scene-layout{display:grid;grid-template-columns:1fr 1fr;gap:25px}
.scene-card{border:1px solid var(--line);border-radius:20px;padding:25px;background:#fff;transition:.2s}
.scene-card .scene-meta{color:#15966e;font-size:12px;font-weight:700;margin-bottom:10px}
.scene-card ul{margin:15px 0 0;padding-left:18px;color:var(--muted);font-size:14px}
.choice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.choice{border:1px solid var(--line);border-radius:18px;padding:23px;background:#fff;transition:.2s}
.choice strong{display:block;color:var(--brand);font-size:25px;margin-bottom:8px}
.faq{max-width:850px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;min-height:60px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink);padding:14px 0}
.faq-q span:last-child{font-size:22px;color:var(--brand);transition:.2s}
.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s}
.faq-item.open .faq-a{max-height:160px;padding:0 35px 18px 0}
.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
.cta-section{background:#eaf5f1}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:55px;align-items:start}
.contact-points{display:grid;gap:12px;margin-top:25px}
.contact-point{padding:15px 18px;background:#fff;border-radius:14px;border:1px solid #d5ebe2}
.contact-point strong{display:block;font-size:15px}
.contact-point span{font-size:13px;color:var(--muted)}
.form{background:#fff;padding:30px;border-radius:22px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:700}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--ink);background:#fff}
.field textarea{min-height:92px;resize:vertical}
.form-note{font-size:12px;color:var(--muted);margin:12px 0 0}
.footer{background:#102238;color:#c0ccd9;padding:62px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:35px}
.footer .brand{color:#fff}
.footer p{font-size:13px;margin:14px 0 0;color:#aebdce}
.footer h3{font-size:14px;color:#fff;margin:0 0 15px}
.footer-grid>div>a:not(.brand){display:block;font-size:13px;color:#b5c4d5;margin:8px 0;transition:.2s}
.footer-grid>div>a:not(.brand):hover{color:#fff}
.footer-bottom{border-top:1px solid #30445a;margin-top:38px;padding-top:22px;font-size:12px;color:#899caf}
.footer-bottom a:hover{color:#fff}
@media(max-width:900px){
 .navlinks{gap:0}.navlinks a{padding:8px 8px;font-size:12px}
 .intro-grid,.method-grid,.contact-grid{grid-template-columns:1fr;gap:35px}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
 .container{width:min(100% - 28px,var(--max))}
 .topline{height:58px}.top-actions .phone{display:none}.top-actions .btn{min-height:40px;padding:0 12px;font-size:12px}
 .navline{height:58px}.navinner{position:relative}.mobile-toggle{display:block}
 .navlinks{display:none;position:absolute;left:0;right:0;top:58px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .navlinks.show{display:flex}.navlinks a{min-height:44px;display:flex;align-items:center}
 .brand{font-size:14px}.brand-mark{width:32px;height:32px}
 .page-intro{padding:55px 0 52px}.page-intro h1{font-size:40px}
 .capability-grid,.scene-layout,.choice-grid{grid-template-columns:1fr}
 .capability img{height:185px}.method-photo{height:270px}
 .form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}
 .footer-grid{grid-template-columns:1fr;gap:25px}.footer{padding-bottom:30px}
 .footer-bottom{line-height:2}
}

/* roulang page: category1 */
:root{--brand:#1769e0;--brand-dark:#0e4fb7;--mint:#dff7ee;--ink:#142238;--muted:#63738b;--line:#dce6f2;--bg:#f5f8fc;--radius:22px;--shadow:0 16px 45px rgba(26,69,120,.10);--max:1200px;--space:clamp(72px,9vw,124px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.section{padding:var(--space) 0}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--brand);font-weight:700}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em}
.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;box-shadow:0 8px 18px #1769e044}
.topline{height:68px;border-bottom:1px solid var(--line);background:#fff}
.topinner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.top-actions{display:flex;align-items:center;gap:22px;color:var(--muted);font-size:13px}
.top-actions a:hover{color:var(--brand)}
.navline{height:62px;border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:10}
.navinner{height:100%;display:flex;align-items:center;justify-content:space-between}
.navlinks{display:flex;align-items:center;gap:5px}
.navlinks a{padding:9px 13px;border-radius:10px;font-size:14px;color:#52637c;transition:.2s}
.navlinks a:hover,.navlinks a.active{color:var(--brand);background:#edf5ff}
.navlinks a.active{font-weight:700}
.mobile-toggle{display:none;width:44px;height:44px;background:none;border:0;color:var(--ink);font-size:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;gap:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px #1769e033}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px #1769e044}
.btn-secondary{background:#fff;border-color:#bcd1ed;color:var(--brand)}
.btn-secondary:hover{background:#edf5ff;border-color:var(--brand)}
.btn:focus,input:focus,select:focus,textarea:focus,button:focus{outline:3px solid #74aaf055;outline-offset:3px}
.page-intro{background:#f1f6fc;padding:65px 0 72px;position:relative;overflow:hidden}
.page-intro:after{content:"";position:absolute;width:430px;height:430px;right:-100px;top:-180px;border-radius:50%;background:#dcecff}
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center;position:relative;z-index:1}
.page-intro h1{font-size:clamp(38px,5vw,64px);line-height:1.15;letter-spacing:-.06em;margin:13px 0 20px}
.lead{font-size:17px;color:#53657d;max-width:670px}
.intro-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:25px;box-shadow:var(--shadow)}
.intro-panel img{width:100%;height:205px;border-radius:16px}
.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.mini-stats div{background:#f5f8fc;border-radius:13px;padding:12px}
.mini-stats strong{display:block;font-size:21px;color:var(--brand)}
.mini-stats span{font-size:12px;color:var(--muted)}
.anchor-bar{border-bottom:1px solid var(--line);background:#fff}
.anchor-list{display:flex;gap:9px;overflow:auto;padding:15px 0;white-space:nowrap}
.anchor-list a{padding:8px 15px;border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:13px}
.anchor-list a:hover,.anchor-list a.active{color:var(--brand);border-color:#a9c8ee;background:#edf5ff}
.section-head{max-width:700px;margin-bottom:38px}
.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 15px}
.section-head p{color:var(--muted);margin:0;font-size:16px}
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.plan-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.2s;box-shadow:0 8px 28px rgba(26,69,120,.05)}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9d2ef}
.plan-card img{width:100%;height:170px}
.card-body{padding:23px}
.tag{display:inline-flex;background:#edf5ff;color:var(--brand);padding:5px 10px;border-radius:8px;font-size:12px;margin:3px 3px 3px 0}
.plan-card h3{font-size:20px;margin:13px 0 7px;line-height:1.4}
.plan-card p{font-size:14px;color:var(--muted);margin:0 0 18px}
.text-link{color:var(--brand);font-weight:700;font-size:14px}
.text-link:hover{color:var(--brand-dark)}
.method{background:var(--bg)}
.method-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
.method-box{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.method-row{display:flex;gap:20px;padding:19px 0;border-bottom:1px solid var(--line)}
.method-row:last-child{border:0}
.method-num{width:34px;height:34px;flex:0 0 34px;border-radius:50%;background:#e8f1ff;color:var(--brand);display:grid;place-items:center;font-weight:800}
.method-row strong{display:block;margin-bottom:4px}.method-row span{font-size:13px;color:var(--muted)}
.bullet-list{padding:0;margin:25px 0;list-style:none}.bullet-list li{padding:10px 0 10px 27px;border-bottom:1px solid var(--line);position:relative}.bullet-list li:before{content:"✓";position:absolute;left:0;color:#15966e;font-weight:800}
.scene-layout{display:grid;grid-template-columns:1fr 1fr;gap:25px}.scene-item{padding:25px;background:#fff;border:1px solid var(--line);border-radius:18px;transition:.2s}.scene-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.scene-item h3{margin:10px 0 6px;font-size:19px}.scene-item p{margin:0;color:var(--muted);font-size:14px}
.criteria{display:grid;grid-template-columns:1fr 1fr;gap:18px}.criteria-item{padding:22px 25px;border-left:4px solid var(--brand);background:#f5f8fc;border-radius:0 15px 15px 0}.criteria-item strong{display:block;margin-bottom:5px}.criteria-item span{font-size:14px;color:var(--muted)}
.faq{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;min-height:58px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink);padding:14px 0}.faq-q span:last-child{font-size:22px;color:var(--brand);transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s}.faq-item.open .faq-a{max-height:180px;padding:0 35px 18px 0}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
.cta-section{background:#e9f6f1}.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:start}.form{background:#fff;padding:30px;border-radius:22px;box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--ink);background:#fff}.field textarea{min-height:90px;resize:vertical}.form-note{font-size:12px;color:var(--muted);margin:12px 0 0}
.footer{background:#102238;color:#c0ccd9;padding:65px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:35px}.footer .brand{color:#fff}.footer p{font-size:13px;color:#aebdce}.footer h3{font-size:14px;color:#fff;margin:0 0 14px}.footer-grid a:not(.brand){display:block;font-size:13px;color:#aebdce;margin:8px 0}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid #2d4056;margin-top:40px;padding-top:20px;font-size:12px;color:#8fa2b8}.footer-bottom a{color:#bcd7f5}
@media(max-width:900px){.intro-grid,.method-grid,.contact-grid{grid-template-columns:1fr;gap:35px}.footer-grid{grid-template-columns:1fr 1fr}.navlinks a{padding:8px 8px;font-size:13px}}
@media(max-width:700px){.topline{height:62px}.top-actions span{display:none}.top-actions{gap:8px}.navline{height:auto}.navinner{min-height:58px}.mobile-toggle{display:block}.navlinks{display:none;position:absolute;left:20px;right:20px;top:58px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{min-height:44px}.page-intro{padding:48px 0 55px}.page-intro h1{font-size:40px}.plan-grid,.scene-layout,.criteria{grid-template-columns:1fr}.mini-stats strong{font-size:18px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.container{width:min(var(--max),calc(100% - 30px))}.section{padding:68px 0}}

/* roulang page: category4 */
:root{--brand:#1769e0;--brand-dark:#0e4fb7;--mint:#dff7ee;--ink:#142238;--muted:#63738b;--line:#dce6f2;--bg:#f5f8fc;--radius:22px;--shadow:0 16px 45px rgba(26,69,120,.10);--max:1200px;--space:clamp(70px,9vw,118px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}img{display:block;max-width:100%;object-fit:cover}button,input,select,textarea{font:inherit}button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}.section{padding:var(--space) 0}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--brand);font-weight:800}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em}.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;box-shadow:0 8px 18px #1769e044}
.topline{height:70px;border-bottom:1px solid var(--line);background:#fff}.topinner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.top-contact{display:flex;align-items:center;gap:24px;color:var(--muted);font-size:13px}.top-contact strong{color:var(--ink);font-size:14px}
.navline{height:62px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20;box-shadow:0 4px 16px rgba(40,70,110,.04)}
.navinner{height:100%;display:flex;align-items:center;justify-content:space-between}.navlinks{display:flex;align-items:center;gap:5px}
.navlinks a{padding:9px 13px;border-radius:10px;font-size:14px;color:#52637c;transition:.2s}.navlinks a:hover,.navlinks a.active{color:var(--brand);background:#edf5ff}.navlinks a.active{font-weight:700}
.mobile-toggle{display:none;width:44px;height:44px;background:none;border:0;color:var(--ink);font-size:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;gap:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px #1769e033}.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px #1769e044}
.btn-secondary{background:#fff;border-color:#bcd1ed;color:var(--brand)}.btn-secondary:hover{background:#edf5ff;border-color:var(--brand)}
.btn:focus,input:focus,select:focus,textarea:focus,button:focus{outline:3px solid #74aaf055;outline-offset:3px}
.page-intro{background:#f1f6fc;padding:72px 0 78px;position:relative;overflow:hidden}.page-intro:after{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-170px;border-radius:50%;background:#dcecff}.intro-grid{display:grid;grid-template-columns:1fr 430px;gap:70px;align-items:center;position:relative;z-index:1}
.page-intro h1{font-size:clamp(38px,5vw,64px);line-height:1.15;letter-spacing:-.06em;margin:14px 0 20px}.intro-copy{font-size:17px;color:#53657d;max-width:650px}
.dashboard{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}.dash-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.dash-title{font-weight:800}.status{font-size:12px;color:#148362;background:var(--mint);border-radius:20px;padding:5px 10px}
.progress{height:8px;border-radius:8px;background:#e8eef6;overflow:hidden}.progress i{display:block;height:100%;width:72%;background:var(--brand);border-radius:8px}.dash-row{display:flex;justify-content:space-between;padding:15px 0;border-bottom:1px solid var(--line);font-size:13px}.dash-row:last-child{border:0}.dash-row span{color:var(--muted)}
.section-head{max-width:720px;margin-bottom:38px}.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 15px}.section-head p{color:var(--muted);margin:0;font-size:16px}
.anchorbar{display:flex;gap:10px;overflow:auto;padding:14px 0;border-bottom:1px solid var(--line);white-space:nowrap}.anchorbar a{padding:9px 15px;border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:13px;background:#fff}.anchorbar a:hover,.anchorbar a.current{color:var(--brand);border-color:#a9c9f2;background:#edf5ff}
.workspace-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.workspace-card{border:1px solid var(--line);border-radius:18px;padding:25px;background:#fff;transition:.25s}.workspace-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9d2ef}.workspace-card img{height:150px;width:100%;border-radius:13px;margin-bottom:18px}.workspace-card h3{font-size:20px;margin:0 0 8px}.workspace-card p{font-size:14px;color:var(--muted);margin:0 0 15px}.tag{display:inline-flex;background:#edf5ff;color:var(--brand);padding:5px 10px;border-radius:8px;font-size:12px;margin:3px 4px 3px 0}
.method{background:#f5f8fc}.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}.method-panel{background:#fff;padding:28px;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.metric{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:16px 0;font-size:14px}.metric:last-child{border:0}.metric b{color:var(--brand)}.checklist{list-style:none;padding:0;margin:24px 0}.checklist li{padding:11px 0 11px 28px;border-bottom:1px solid var(--line);position:relative;font-size:15px}.checklist li:before{content:"✓";position:absolute;left:0;color:#15966e;font-weight:800}
.scene-layout{display:grid;grid-template-columns:280px 1fr;gap:34px}.scene-tabs{display:grid;gap:10px}.scene-tabs button{text-align:left;border:1px solid var(--line);background:#fff;border-radius:14px;padding:16px;color:var(--muted);transition:.2s}.scene-tabs button:hover,.scene-tabs button.active{color:var(--brand);border-color:#a9c9f2;background:#edf5ff;font-weight:700}.scene-panel{border-radius:24px;overflow:hidden;min-height:330px;position:relative;color:#fff;background:url('/assets/images/backpic/back-5.webp') center/cover}.scene-panel:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#10233ce8,transparent)}.scene-content{position:relative;max-width:520px;padding:42px}.scene-content h3{font-size:29px;margin:10px 0}.scene-content p{color:#d7e1ed}.scene-content li{margin:8px 0}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid #bcd1ed}.step{position:relative;padding:28px 22px 0;border-right:1px solid var(--line)}.step:last-child{border:0}.step:before{content:"";position:absolute;top:-10px;left:22px;width:18px;height:18px;background:var(--brand);border:4px solid #fff;border-radius:50%;box-shadow:0 0 0 2px #bcd1ed}.step b{font-size:13px;color:var(--brand)}.step h3{font-size:19px;margin:12px 0 6px}.step p{font-size:14px;color:var(--muted);margin:0}
.matrix-wrap{overflow:auto;border:1px solid #29415d;border-radius:18px}.matrix{width:100%;min-width:680px;border-collapse:collapse}.matrix th,.matrix td{padding:16px 18px;text-align:left;border-bottom:1px solid #29415d;font-size:14px}.matrix th{color:#9ec5fa;font-weight:700}.matrix td:first-child{color:#fff;font-weight:700}.matrix td{color:#bdcad8}.matrix tr:last-child td{border:0}.dark-section{background:#13243a;color:#fff}.dark-section .section-head p{color:#afbed0}
.role-strip{display:grid;grid-template-columns:1.25fr .75fr;gap:28px;align-items:stretch}.quote-box{padding:36px;border-radius:22px;background:#e9f6f1}.quote-box blockquote{font-size:clamp(21px,3vw,31px);line-height:1.45;margin:18px 0;color:#163c42}.role-box{border:1px solid var(--line);border-radius:22px;padding:28px;background:#fff}.role-box h3{margin:0 0 14px}.role-box p{color:var(--muted);font-size:14px}
.faq{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;min-height:58px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink);padding:14px 0}.faq-q span:last-child{font-size:22px;color:var(--brand);transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s}.faq-item.open .faq-a{max-height:160px;padding:0 35px 18px 0}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
.cta-section{background:#edf5ff}.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:start}.form{background:#fff;padding:30px;border-radius:22px;box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--ink);background:#fff}.field textarea{min-height:90px;resize:vertical}.form-note{font-size:12px;color:var(--muted);margin-top:12px}
.footer{background:#102238;color:#c0ccd9;padding:62px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:35px}.footer .brand{color:#fff}.footer p{font-size:13px;color:#aebdce}.footer h3{font-size:14px;color:#fff;margin:0 0 15px}.footer-grid>div>a:not(.brand){display:block;font-size:13px;margin:8px 0;color:#b9c8d8}.footer-grid>div>a:not(.brand):hover{color:#fff}.footer-bottom{border-top:1px solid #29415d;margin-top:42px;padding-top:20px;font-size:12px;color:#91a4b9}.footer-bottom a:hover{color:#fff}
.sticky-cta{position:fixed;bottom:18px;right:22px;z-index:30;background:#fff;border:1px solid var(--line);box-shadow:0 12px 35px rgba(20,55,100,.18);border-radius:16px;padding:10px 12px;display:flex;align-items:center;gap:14px}.sticky-cta small{color:var(--muted);font-size:12px}
@media(max-width:900px){.intro-grid,.method-grid,.role-strip,.contact-grid{grid-template-columns:1fr;gap:30px}.workspace-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.navlinks{display:none}.mobile-toggle{display:block}.navlinks.open{display:flex;position:absolute;top:62px;left:0;right:0;background:#fff;box-shadow:var(--shadow);padding:12px 20px;flex-wrap:wrap}.timeline{grid-template-columns:1fr 1fr;gap:24px;border-top:0}.step{border-right:0;border-top:2px solid #bcd1ed;padding-top:24px}.step:before{top:-10px;left:20px}}
@media(max-width:560px){.container{width:min(var(--max),calc(100% - 28px))}.topline{height:62px}.top-contact{display:none}.topinner{justify-content:space-between}.navline{height:56px}.navlinks.open{top:56px;display:grid;grid-template-columns:1fr 1fr}.navlinks.open a{padding:12px}.page-intro{padding:52px 0 58px}.page-intro h1{font-size:40px}.workspace-grid{grid-template-columns:1fr}.scene-layout{grid-template-columns:1fr}.scene-tabs{display:flex;overflow:auto}.scene-tabs button{white-space:nowrap}.scene-content{padding:28px}.timeline{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.sticky-cta{left:12px;right:12px;bottom:10px;justify-content:space-between}.sticky-cta .btn{min-height:44px;padding:0 14px}}

/* roulang page: category3 */
:root{--brand:#1769e0;--brand-dark:#0e4fb7;--mint:#dff7ee;--ink:#142238;--muted:#63738b;--line:#dce6f2;--bg:#f5f8fc;--radius:22px;--shadow:0 16px 45px rgba(26,69,120,.1);--max:1200px;--space:clamp(68px,8vw,112px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit} img{display:block;max-width:100%;object-fit:cover} button,input,select,textarea{font:inherit} button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}.section{padding:var(--space) 0}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--brand);font-weight:800}
.section-head{max-width:720px;margin-bottom:38px}.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 15px}.section-head p{color:var(--muted);margin:0;font-size:16px}
.topline{height:58px;border-bottom:1px solid var(--line);background:#fff}.topinner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:25px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em}.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;box-shadow:0 8px 18px #1769e044}
.top-actions{display:flex;align-items:center;gap:22px;font-size:13px;color:var(--muted)}.top-actions a:hover{color:var(--brand)}
.navline{height:62px;border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:20}.navinner{height:100%;display:flex;align-items:center;justify-content:flex-end}
.navlinks{display:flex;align-items:center;gap:5px}.navlinks a{padding:9px 13px;border-radius:10px;font-size:14px;color:#52637c;transition:.2s}.navlinks a:hover,.navlinks a.active{color:var(--brand);background:#edf5ff}.navlinks a.active{font-weight:700}
.mobile-toggle{display:none;width:44px;height:44px;background:none;border:0;color:var(--ink);font-size:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;gap:8px}.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px #1769e033}.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px)}.btn-secondary{background:#fff;border-color:#bcd1ed;color:var(--brand)}.btn-secondary:hover{background:#edf5ff;border-color:var(--brand)}
.btn:focus,input:focus,select:focus,textarea:focus,button:focus{outline:3px solid #74aaf055;outline-offset:3px}
.category-intro{background:#f1f6fc;padding:70px 0 65px;position:relative;overflow:hidden}.category-intro:after{content:"";position:absolute;width:430px;height:430px;right:-130px;top:-150px;border-radius:50%;background:#dcecff}.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center;position:relative;z-index:1}.category-intro h1{font-size:clamp(38px,5vw,64px);line-height:1.15;letter-spacing:-.06em;margin:14px 0 20px}.intro-copy{font-size:17px;color:#53657d;max-width:650px}.metric-panel{background:#13243a;color:#fff;border-radius:24px;padding:28px;box-shadow:var(--shadow)}.metric-panel small{color:#aebed0}.metric-panel strong{display:block;font-size:38px;line-height:1.2;margin:8px 0}.metric-line{height:7px;border-radius:9px;background:#2b4058;margin:17px 0 22px;overflow:hidden}.metric-line i{display:block;height:100%;background:#55c89c;border-radius:9px}.metric-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}.metric-list b{font-size:20px;display:block}.topicbar{padding:18px 0;border-bottom:1px solid var(--line);background:#fff}.topiclinks{display:flex;gap:10px;overflow:auto;scrollbar-width:none}.topiclinks a{white-space:nowrap;padding:9px 16px;border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:13px}.topiclinks a:hover,.topiclinks a.active{color:var(--brand);border-color:#9ec2ef;background:#edf5ff}
.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.data-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.25s;box-shadow:0 8px 25px rgba(26,69,120,.04)}.data-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9d2ef}.data-card img{width:100%;height:180px}.data-body{padding:23px}.data-body h3{font-size:20px;line-height:1.35;margin:0 0 9px}.data-body p{font-size:14px;color:var(--muted);margin:0 0 15px}.tag{display:inline-flex;background:#edf5ff;color:var(--brand);padding:5px 10px;border-radius:8px;font-size:12px;margin:3px 3px 3px 0}.data-more{margin-top:30px;text-align:center}
.method{background:var(--bg)}.method-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}.method-img{height:390px;border-radius:24px;box-shadow:var(--shadow);width:100%}.method-list{display:grid;gap:18px}.method-item{display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start}.method-number{width:42px;height:42px;border-radius:13px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800}.method-item h3{margin:0 0 4px;font-size:18px}.method-item p{margin:0;color:var(--muted);font-size:14px}
.scene-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}.scene-block{padding:28px;border-radius:20px;background:#fff;border:1px solid var(--line)}.scene-block h3{margin:10px 0 8px;font-size:21px}.scene-block p{color:var(--muted);font-size:14px;margin:0}.scene-block ul{padding-left:20px;margin:18px 0 0;color:#52637c;font-size:14px}.scene-block li{margin:6px 0}
.choice-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.choice{padding:23px;border:1px solid var(--line);border-radius:17px;background:#fff}.choice b{display:block;font-size:16px;margin-bottom:7px}.choice span{font-size:13px;color:var(--muted)}
.faq{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;min-height:58px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink);padding:14px 0}.faq-q span:last-child{font-size:22px;color:var(--brand);transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s}.faq-item.open .faq-a{max-height:160px;padding:0 35px 18px 0}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
.cta-box{background:#e9f6f1;border-radius:26px;padding:42px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta-box h2{margin:8px 0;font-size:clamp(26px,3vw,38px);line-height:1.25}.cta-box p{margin:0;color:#536d70}.footer{background:#102238;color:#c0ccd9;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:35px}.footer .brand{color:#fff}.footer p{font-size:13px;margin:10px 0;color:#aebdcd}.footer h3{color:#fff;font-size:15px;margin:0 0 15px}.footer-grid>div>a:not(.brand){display:block;font-size:13px;margin:9px 0;color:#b9c7d6}.footer-grid>div>a:not(.brand):hover{color:#fff}.footer-bottom{border-top:1px solid #294057;margin-top:38px;padding-top:20px;font-size:12px;color:#8fa2b8}.footer-bottom a{color:#bcd8f7}
@media(max-width:1024px){.navlinks a{padding:9px 8px}.intro-grid,.method-grid{gap:35px}.choice-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.topline{height:64px}.top-actions span{display:none}.top-actions{gap:8px}.navline{height:54px}.navinner{justify-content:flex-end}.mobile-toggle{display:block}.navlinks{display:none;position:absolute;top:54px;left:20px;right:20px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.navlinks.show{display:flex}.navlinks a{min-height:44px}.intro-grid,.method-grid,.scene-layout{grid-template-columns:1fr}.category-intro{padding:55px 0}.data-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta-box{align-items:flex-start;flex-direction:column}}
@media(max-width:520px){.container{width:min(var(--max),calc(100% - 28px))}.brand{font-size:14px}.brand-mark{width:32px;height:32px}.category-intro h1{font-size:39px}.data-grid,.choice-grid{grid-template-columns:1fr}.metric-panel{padding:22px}.method-img{height:270px}.cta-box{padding:28px 22px}.footer-grid{grid-template-columns:1fr}.footer-bottom{line-height:2}.top-actions .btn{padding:0 12px;font-size:12px}}

/* roulang page: category5 */
:root{--brand:#1769e0;--brand-dark:#0e4fb7;--mint:#dff7ee;--ink:#142238;--muted:#63738b;--line:#dce6f2;--bg:#f5f8fc;--radius:22px;--shadow:0 16px 45px rgba(26,69,120,.10);--max:1200px;--space:clamp(72px,9vw,124px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.section{padding:var(--space) 0}
.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--brand);font-weight:700}
.section-head{max-width:720px;margin-bottom:38px}
.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 15px}
.section-head p{color:var(--muted);margin:0;font-size:16px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em}
.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;box-shadow:0 8px 18px #1769e044}
.topline{height:68px;border-bottom:1px solid var(--line);background:#fff}
.navline{min-height:62px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20;box-shadow:0 4px 18px rgba(28,71,120,.04)}
.navinner{min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.topinner{height:100%;display:flex;align-items:center;justify-content:space-between}
.top-contact{display:flex;align-items:center;gap:24px;color:var(--muted);font-size:13px}
.navlinks{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
.navlinks a{padding:9px 13px;border-radius:10px;font-size:14px;color:#52637c;transition:.2s}
.navlinks a:hover,.navlinks a.active{color:var(--brand);background:#edf5ff}
.navlinks a.active{font-weight:700}
.mobile-toggle{display:none;width:44px;height:44px;background:none;border:0;color:var(--ink);font-size:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;gap:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px #1769e033}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px #1769e044}
.btn-secondary{background:#fff;border-color:#bcd1ed;color:var(--brand)}
.btn-secondary:hover{background:#edf5ff;border-color:var(--brand)}
.btn:focus,input:focus,select:focus,textarea:focus,button:focus{outline:3px solid #74aaf055;outline-offset:3px}
.page-intro{background:#f1f6fc;padding:78px 0 70px;position:relative;overflow:hidden}
.page-intro:after{content:"";position:absolute;width:430px;height:430px;border-radius:50%;right:-120px;top:-180px;background:#dcecff}
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center;position:relative;z-index:1}
.page-intro h1{font-size:clamp(38px,5vw,62px);line-height:1.15;letter-spacing:-.06em;margin:12px 0 20px}
.lead{font-size:17px;color:#53657d;max-width:680px}
.metric-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:25px;box-shadow:var(--shadow)}
.metric-panel img{height:180px;width:100%;border-radius:15px;margin-bottom:20px}
.metric-row{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}
.metric{background:#f5f8fc;border-radius:13px;padding:14px}
.metric strong{display:block;font-size:24px;color:var(--brand)}
.metric span{font-size:12px;color:var(--muted)}
.anchorbar{padding:18px 0;border-bottom:1px solid var(--line);background:#fff}
.anchorlinks{display:flex;gap:10px;overflow:auto;white-space:nowrap;padding-bottom:3px}
.anchorlinks a{border:1px solid var(--line);border-radius:30px;padding:8px 16px;color:var(--muted);font-size:13px;transition:.2s}
.anchorlinks a:hover,.anchorlinks a.active{color:var(--brand);border-color:#a8c8ef;background:#edf5ff}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene-card{border:1px solid var(--line);border-radius:20px;background:#fff;overflow:hidden;transition:.25s;box-shadow:0 8px 25px rgba(26,69,120,.05)}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9d2ef}
.scene-card img{height:180px;width:100%}
.scene-body{padding:23px}
.scene-body h3{font-size:20px;margin:0 0 9px}
.scene-body p{color:var(--muted);font-size:14px;margin:0 0 16px}
.tag{display:inline-flex;background:#edf5ff;color:var(--brand);padding:5px 10px;border-radius:8px;font-size:12px;margin:3px 4px 3px 0}
.more-row{margin-top:28px;text-align:center}
.method-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:start}
.method-image{border-radius:23px;height:350px;width:100%;box-shadow:var(--shadow)}
.step-list{display:grid;gap:0}
.step{display:grid;grid-template-columns:62px 1fr;gap:20px;padding:0 0 25px;position:relative}
.step:not(:last-child):after{content:"";position:absolute;left:30px;top:48px;width:1px;height:calc(100% - 25px);background:#bfd5ee}
.step-num{width:60px;height:60px;border-radius:50%;background:#edf5ff;color:var(--brand);display:grid;place-items:center;font-weight:800;position:relative;z-index:1}
.step h3{margin:4px 0 4px;font-size:19px}
.step p{margin:0;color:var(--muted);font-size:14px}
.role-band{background:#f5f8fc}
.role-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.role{padding:24px;border-radius:18px;background:#fff;border:1px solid var(--line)}
.role h3{margin:0 0 7px;font-size:18px}
.role p{margin:0;color:var(--muted);font-size:14px}
.check-panel{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.check-item{border:1px solid var(--line);border-radius:17px;padding:21px;background:#fff}
.check-item strong{display:block;margin-bottom:7px}
.check-item p{margin:0;color:var(--muted);font-size:14px}
.faq{max-width:850px;margin:auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;min-height:58px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink);padding:14px 0}
.faq-q span:last-child{font-size:22px;color:var(--brand);transition:.2s}
.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s}
.faq-item.open .faq-a{max-height:160px;padding:0 35px 18px 0}
.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
.cta-section{background:#edf5ff}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}
.form{background:#fff;padding:30px;border-radius:22px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:700}
.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--ink);background:#fff;width:100%}
.field textarea{min-height:90px;resize:vertical}
.full{grid-column:1/-1}
.form-note{font-size:12px;color:var(--muted);margin:13px 0 0}
.footer{background:#102238;color:#c0ccd9;padding:60px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:35px}
.footer .brand{color:#fff}
.footer p{font-size:13px;color:#aebdcd}
.footer h3{color:#fff;font-size:14px;margin:0 0 15px}
.footer a:not(.brand){display:block;color:#b7c5d4;font-size:13px;margin:9px 0;transition:.2s}
.footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid #31435a;margin-top:35px;padding-top:20px;font-size:12px;color:#91a4b8}
.footer-bottom a{display:inline!important}
@media(max-width:1024px){.navlinks a{padding:8px 8px}.intro-grid,.method-layout,.contact-grid{gap:35px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.topline{height:62px}.top-contact{display:none}.navinner{position:relative}.mobile-toggle{display:block}.navlinks{display:none;position:absolute;left:0;right:0;top:62px;background:#fff;padding:12px;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 16px 16px;flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{padding:12px 14px}.intro-grid,.method-layout,.contact-grid{grid-template-columns:1fr}.page-intro{padding:58px 0}.scene-grid,.role-grid{grid-template-columns:1fr 1fr}.method-image{height:280px}}
@media(max-width:520px){.container{width:min(var(--max),calc(100% - 28px))}.section{padding:68px 0}.page-intro h1{font-size:39px}.hero-actions .btn{width:100%}.scene-grid,.role-grid,.check-panel,.form-grid{grid-template-columns:1fr}.full{grid-column:auto}.footer-grid{grid-template-columns:1fr;gap:22px}.footer{padding-bottom:35px}.metric-panel{padding:17px}.metric-panel img{height:150px}}

/* roulang page: category6 */
:root{--brand:#1769e0;--brand-dark:#0e4fb7;--mint:#dff7ee;--ink:#142238;--muted:#63738b;--line:#dce6f2;--bg:#f5f8fc;--radius:22px;--shadow:0 16px 45px rgba(26,69,120,.10);--max:1200px;--space:clamp(72px,9vw,124px)}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}
    a{text-decoration:none;color:inherit}
    img{display:block;max-width:100%;object-fit:cover}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 40px));margin:auto}
    .section{padding:var(--space) 0}
    .eyebrow{font-size:12px;letter-spacing:.16em;color:var(--brand);font-weight:700}
    .section-head{max-width:720px;margin-bottom:38px}
    .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 15px}
    .section-head p{color:var(--muted);margin:0;font-size:16px}
    .brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;box-shadow:0 8px 18px #1769e044}
    .topline{height:68px;border-bottom:1px solid var(--line);background:#fff}
    .topinner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .top-contact{display:flex;align-items:center;gap:20px;color:var(--muted);font-size:13px}
    .navline{height:62px;border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:10}
    .navinner{height:100%;display:flex;align-items:center;justify-content:space-between}
    .navlinks{display:flex;align-items:center;gap:5px}
    .navlinks a{padding:9px 13px;border-radius:10px;font-size:14px;color:#52637c;transition:.2s}
    .navlinks a:hover,.navlinks a.active{color:var(--brand);background:#edf5ff}
    .navlinks a.active{font-weight:700}
    .mobile-toggle{display:none;width:44px;height:44px;background:none;border:0;color:var(--ink);font-size:22px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;gap:8px}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px #1769e033}
    .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px #1769e044}
    .btn-secondary{background:#fff;border-color:#bcd1ed;color:var(--brand)}
    .btn-secondary:hover{background:#edf5ff;border-color:var(--brand)}
    .btn:focus,input:focus,select:focus,textarea:focus,button:focus{outline:3px solid #74aaf055;outline-offset:3px}
    .category-hero{background:#f1f6fc;padding:72px 0 68px;position:relative;overflow:hidden}
    .category-hero:after{content:"";position:absolute;width:420px;height:420px;right:-100px;top:-160px;border-radius:50%;background:#dcecff}
    .intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center;position:relative;z-index:1}
    h1{font-size:clamp(38px,5vw,64px);line-height:1.14;letter-spacing:-.06em;margin:12px 0 20px}
    .lead{font-size:17px;color:var(--muted);max-width:700px}
    .metric-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}
    .metric-panel img{height:175px;width:100%;border-radius:15px;margin-bottom:20px}
    .metric-row{display:flex;justify-content:space-between;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
    .metric-row:last-child{border:0}
    .metric-row strong{color:var(--brand)}
    .filterbar{display:flex;gap:10px;flex-wrap:wrap;padding:17px 0;border-bottom:1px solid var(--line)}
    .filterbar a{padding:8px 15px;border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:13px;transition:.2s}
    .filterbar a:hover,.filterbar a.active{color:var(--brand);border-color:#a9c9f2;background:#edf5ff}
    .card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s;box-shadow:0 8px 25px rgba(26,69,120,.05)}
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9d2ef}
    .card img{height:170px;width:100%}
    .card-body{padding:23px}
    .card h3{font-size:20px;line-height:1.35;margin:12px 0 9px}
    .card p{font-size:14px;color:var(--muted);margin:0 0 17px}
    .tag{display:inline-flex;background:#edf5ff;color:var(--brand);padding:5px 10px;border-radius:8px;font-size:12px;margin:4px 3px 4px 0}
    .card-link{font-size:14px;color:var(--brand);font-weight:700}
    .method{background:var(--bg)}
    .method-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
    .method-copy h2{font-size:34px;line-height:1.25;margin:10px 0 15px}
    .step-list{border-left:2px solid #b9d5f5;padding-left:28px;display:grid;gap:25px}
    .step{position:relative}
    .step:before{content:"";position:absolute;left:-39px;top:6px;width:18px;height:18px;border-radius:50%;background:var(--brand);border:4px solid #e2efff}
    .step b{color:var(--brand);font-size:13px}
    .step h3{margin:5px 0;font-size:19px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .scene-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:45px;align-items:center}
    .scene-image{height:370px;border-radius:24px;box-shadow:var(--shadow)}
    .scene-list{display:grid;gap:15px}
    .scene-item{padding:19px 21px;border:1px solid var(--line);border-radius:15px;background:#fff}
    .scene-item strong{display:block;margin-bottom:4px}
    .scene-item span{font-size:14px;color:var(--muted)}
    .choice-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .choice{padding:22px;background:#fff;border:1px solid var(--line);border-radius:17px}
    .choice b{display:block;font-size:17px;margin-bottom:8px}
    .choice p{margin:0;color:var(--muted);font-size:13px}
    .faq{max-width:850px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-q{width:100%;min-height:58px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink);padding:14px 0}
    .faq-q span:last-child{font-size:22px;color:var(--brand);transition:.2s}
    .faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s}
    .faq-item.open .faq-a{max-height:150px;padding:0 35px 18px 0}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
    .cta-section{background:#eaf3ff}
    .contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:start}
    .contact-copy h2{font-size:36px;line-height:1.25;margin:10px 0 14px}
    .contact-copy p{color:var(--muted)}
    .trust-list{list-style:none;padding:0;margin:24px 0}
    .trust-list li{padding:9px 0 9px 27px;position:relative;font-size:14px}
    .trust-list li:before{content:"✓";position:absolute;left:0;color:#15966e;font-weight:800}
    .form{background:#fff;padding:30px;border-radius:22px;box-shadow:var(--shadow)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .field{display:flex;flex-direction:column;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:13px;font-weight:700}
    .field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--ink);background:#fff}
    .field textarea{min-height:90px;resize:vertical}
    .form-note{font-size:12px;color:var(--muted);margin-top:12px}
    .footer{background:#102238;color:#c0ccd9;padding:58px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:35px}
    .footer .brand{color:#fff}
    .footer p{font-size:13px;color:#aebdcd;margin:13px 0 0}
    .footer h3{font-size:14px;color:#fff;margin:0 0 15px}
    .footer a:not(.brand){display:block;font-size:13px;color:#aebdcd;margin:9px 0;transition:.2s}
    .footer a:not(.brand):hover{color:#fff}
    .footer-bottom{border-top:1px solid #2d4056;margin-top:42px;padding-top:20px;font-size:12px;color:#8fa1b5}
    .footer-bottom a{display:inline!important;color:#b9d5f5!important}
    @media(max-width:1024px){.navlinks a{padding:8px 8px}.intro-grid,.method-grid,.scene-layout,.contact-grid{gap:35px}.card-grid{grid-template-columns:repeat(2,1fr)}.choice-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.topline{height:60px}.top-contact{display:none}.navline{height:auto}.navinner{min-height:58px}.mobile-toggle{display:block}.navlinks{display:none;position:absolute;left:20px;right:20px;top:58px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.navlinks.show{display:flex}.navlinks a{min-height:44px}.intro-grid,.method-grid,.scene-layout,.contact-grid{grid-template-columns:1fr}.category-hero{padding:58px 0}.metric-panel{max-width:520px}.scene-image{height:280px}.contact-copy h2{font-size:30px}}
    @media(max-width:520px){.container{width:min(var(--max),calc(100% - 28px))}.brand{font-size:14px}.brand-mark{width:32px;height:32px}.hero-actions,.form-grid{display:flex;flex-direction:column}.btn{width:100%}.card-grid,.choice-grid,.footer-grid{grid-template-columns:1fr}.section{padding:64px 0}h1{font-size:39px}.section-head h2{font-size:30px}.form{padding:21px}.footer{padding-bottom:90px}.footer-bottom{line-height:2}}

/* roulang page: category7 */
:root{--brand:#1769e0;--brand-dark:#0e4fb7;--mint:#dff7ee;--ink:#142238;--muted:#63738b;--line:#dce6f2;--bg:#f5f8fc;--radius:22px;--shadow:0 16px 45px rgba(26,69,120,.10);--max:1200px;--space:clamp(68px,8vw,112px)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;object-fit:cover}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.section{padding:var(--space) 0}.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--brand);font-weight:800}.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em}.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;box-shadow:0 8px 18px #1769e044}.topline{height:60px;border-bottom:1px solid var(--line);background:#fff}.topinner{height:100%;display:flex;align-items:center;justify-content:space-between}.top-actions{display:flex;align-items:center;gap:22px;color:var(--muted);font-size:13px}.top-actions strong{color:var(--ink)}.navline{height:62px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20;box-shadow:0 4px 18px rgba(28,64,112,.04)}.navinner{height:100%;display:flex;align-items:center;justify-content:flex-end}.navlinks{display:flex;align-items:center;gap:5px}.navlinks a{padding:9px 13px;border-radius:10px;font-size:14px;color:#52637c;transition:.2s}.navlinks a:hover,.navlinks a.active{color:var(--brand);background:#edf5ff}.navlinks a.active{font-weight:700}.mobile-toggle{display:none;width:44px;height:44px;background:none;border:0;color:var(--ink);font-size:22px}.mobile-panel{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:.2s;gap:8px}.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px #1769e033}.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 26px #1769e044}.btn-secondary{background:#fff;border-color:#bcd1ed;color:var(--brand)}.btn-secondary:hover{background:#edf5ff;border-color:var(--brand)}.btn:focus,input:focus,select:focus,textarea:focus,button:focus{outline:3px solid #74aaf055;outline-offset:3px}.intro{background:#f1f6fc;padding:74px 0}.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}.intro h1{font-size:clamp(38px,5vw,62px);line-height:1.15;letter-spacing:-.06em;margin:14px 0 20px}.intro p{font-size:17px;color:var(--muted);max-width:650px}.metric-board{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow);position:relative}.metric-board img{height:220px;width:100%;border-radius:15px;margin-bottom:22px}.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.metric{padding:12px;background:#f5f8fc;border-radius:12px}.metric b{font-size:21px;display:block;color:var(--brand)}.metric small{font-size:12px;color:var(--muted)}.anchorbar{padding:17px 0;border-bottom:1px solid var(--line);background:#fff}.anchorlinks{display:flex;gap:10px;overflow:auto;white-space:nowrap}.anchorlinks a{padding:8px 15px;border-radius:20px;color:var(--muted);background:#f5f8fc;font-size:13px;transition:.2s}.anchorlinks a:hover,.anchorlinks a.current{color:var(--brand);background:#e7f1ff}.section-head{max-width:720px;margin-bottom:38px}.section-head h2{font-size:clamp(28px,4vw,43px);line-height:1.2;letter-spacing:-.04em;margin:10px 0 15px}.section-head p{color:var(--muted);margin:0;font-size:16px}.assessment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{border:1px solid var(--line);border-radius:20px;background:#fff;overflow:hidden;transition:.25s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9d2ef}.card img{height:175px;width:100%}.card-body{padding:23px}.card h3{font-size:20px;line-height:1.35;margin:0 0 9px}.card p{font-size:14px;color:var(--muted);margin:0 0 16px}.tag{display:inline-flex;background:#edf5ff;color:var(--brand);padding:5px 10px;border-radius:8px;font-size:12px;margin:4px 3px 0 0}.more-row{margin-top:30px;text-align:center}.method{background:var(--bg)}.method-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}.method-copy{background:#fff;border-radius:20px;padding:30px;border:1px solid var(--line);box-shadow:var(--shadow)}.method-copy h3{margin:0 0 12px;font-size:24px}.method-copy p{color:var(--muted);font-size:14px}.method-list{display:grid;gap:14px}.method-item{display:grid;grid-template-columns:70px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.method-item strong{font-size:28px;color:var(--brand)}.method-item h3{margin:0 0 4px;font-size:19px}.method-item p{margin:0;color:var(--muted);font-size:14px}.scene-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}.scene-image{min-height:390px;border-radius:24px;background:url('/assets/images/backpic/back-6.webp') center/cover;position:relative;overflow:hidden}.scene-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#10233cd9,transparent 65%)}.scene-caption{position:absolute;z-index:1;bottom:28px;left:30px;right:30px;color:#fff}.scene-caption h3{font-size:28px;margin:10px 0 5px}.scene-caption p{margin:0;color:#d9e4f0}.role-list{display:grid;gap:12px}.role{padding:22px;border:1px solid var(--line);border-radius:16px;background:#fff}.role:hover{border-color:#9ebfe8;box-shadow:var(--shadow)}.role b{display:block;font-size:18px;margin-bottom:5px}.role span{font-size:14px;color:var(--muted)}.criteria{background:#f1f6fc}.criteria-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.criteria-item{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px}.criteria-item b{display:block;margin-bottom:9px}.criteria-item p{font-size:13px;color:var(--muted);margin:0}.faq{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;min-height:62px;border:0;background:none;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:700;color:var(--ink);padding:14px 0}.faq-q span:last-child{font-size:22px;color:var(--brand);transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s}.faq-item.open .faq-a{max-height:160px;padding:0 35px 18px 0}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}.cta-section{background:var(--mint)}.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:start}.cta-copy h2{font-size:clamp(29px,4vw,44px);line-height:1.2;margin:12px 0}.cta-copy p{color:var(--muted)}.form{background:#fff;padding:29px;border-radius:22px;box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--ink);background:#fff}.field textarea{min-height:85px;resize:vertical}.form-note{font-size:12px;color:var(--muted);margin:13px 0}.footer{background:#102238;color:#c0ccd8;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1.15fr;gap:35px}.footer .brand{color:#fff}.footer p{font-size:13px;line-height:1.8}.footer h3{color:#fff;font-size:15px;margin:0 0 13px}.footer-grid a:not(.brand){display:block;font-size:13px;margin:8px 0;color:#c0ccd8}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid #31445a;margin-top:38px;padding-top:20px;font-size:12px;color:#94a6ba}.footer-bottom a{color:#cbd7e5}.sticky-cta{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 25px #183b6316;z-index:30;padding:12px 0}.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}.sticky-inner strong{font-size:15px}.sticky-inner span{color:var(--muted);font-size:13px;margin-left:12px}.backtop{color:var(--brand);font-size:13px;font-weight:700}@media(max-width:900px){.navlinks{display:none}.navinner{justify-content:flex-end}.mobile-toggle{display:block}.mobile-panel{position:absolute;top:122px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:15px 20px;box-shadow:var(--shadow);z-index:19}.mobile-panel.show{display:grid}.mobile-panel a{padding:12px;border-radius:9px}.mobile-panel a:hover{background:#edf5ff;color:var(--brand)}.intro-grid,.method-grid,.scene-layout,.cta-grid{grid-template-columns:1fr;gap:32px}.assessment-grid{grid-template-columns:repeat(2,1fr)}.criteria-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.container{width:min(var(--max),calc(100% - 28px))}.topline{height:58px}.top-actions{gap:8px;font-size:12px}.top-actions .btn{display:none}.navline{height:58px}.mobile-panel{top:116px}.intro{padding:54px 0}.intro h1{font-size:39px}.metric-board{padding:18px}.metric-board img{height:175px}.assessment-grid,.criteria-grid,.form-grid{grid-template-columns:1fr}.section{padding:66px 0}.section-head{margin-bottom:27px}.method-item{grid-template-columns:50px 1fr;gap:12px}.scene-image{min-height:300px}.footer-grid{grid-template-columns:1fr;gap:20px}.sticky-inner strong{font-size:13px}.sticky-inner span,.backtop{display:none}.sticky-inner .btn{min-height:44px;padding:0 14px}.sticky-cta{padding:9px 0}.form{padding:20px}}