/* roulang page: index */
:root{
      --color-primary:#1769c2;--color-primary-dark:#0b4d99;--color-accent:#0b9caf;
      --color-ink:#172b4d;--color-muted:#60718a;--color-surface:#fff;--color-surface-soft:#f3f8fd;
      --color-border:#dce7f2;--shadow-card:0 10px 30px rgba(19,62,108,.09);--shadow-hover:0 18px 40px rgba(19,62,108,.16);
      --radius-sm:8px;--radius-md:14px;--radius-lg:20px;--container-width:1240px;
    }
    *{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:#fff;color:var(--color-ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.76} a{color:inherit;text-decoration:none} img{max-width:100%;display:block} button,input,textarea{font:inherit} button{cursor:pointer;border:0} ::selection{background:#cce6ff;color:#0b3e78}
    .shell{width:min(var(--container-width),calc(100% - 48px));margin:auto}.skip{position:absolute;left:-9999px;top:auto}.skip:focus{left:16px;top:14px;z-index:99;background:#fff;padding:10px 14px;border-radius:8px;outline:3px solid var(--color-accent)}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(220,231,242,.9);box-shadow:0 4px 18px rgba(20,61,102,.04);backdrop-filter:blur(10px)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--color-ink);white-space:nowrap}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--color-primary);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 7px 15px rgba(23,105,194,.24)}
    .nav-links{display:flex;align-items:center;gap:3px}.nav-links a{padding:9px 10px;border-radius:8px;font-size:14px;color:#435774;transition:.2s ease}.nav-links a:hover{color:var(--color-primary);background:#eef6ff;transform:translateY(-1px)}.nav-links a.active{color:var(--color-primary);font-weight:700;background:#eaf4ff}.nav-cta{margin-left:8px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:9px;font-size:15px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,color .2s}.btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #8cc8ff;outline-offset:3px}.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 17px rgba(23,105,194,.22)}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(23,105,194,.28)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:#fff;color:var(--color-primary);border:1px solid #aacfee}.btn-secondary:hover{background:#eef6ff;transform:translateY(-2px)}.btn-light{background:#fff;color:#104f96}.btn-light:hover{background:#e9f4ff;transform:translateY(-2px)}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);border-radius:9px;background:#fff;color:var(--color-primary);font-size:23px}
    .hero{position:relative;overflow:hidden;min-height:580px;color:#fff;background:#0d4f94 url('/assets/images/backpic/back-1.webp') center/cover no-repeat}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,48,92,.94) 0%,rgba(10,67,126,.82) 46%,rgba(9,74,136,.35) 100%)}.hero:after{content:"";position:absolute;right:-90px;bottom:-150px;width:470px;height:430px;border:45px solid rgba(255,255,255,.14);transform:rotate(-16deg);border-radius:42px}
    .hero-inner{position:relative;z-index:1;padding:76px 0 88px;max-width:850px}.flash{display:inline-flex;align-items:center;gap:9px;padding:7px 13px;border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.13);border-radius:8px;font-size:14px;font-weight:700}.flash b{color:#ffdf71}.hero h1{font-size:54px;line-height:1.25;margin:22px 0 18px;letter-spacing:0;font-weight:850}.hero p{max-width:760px;font-size:18px;line-height:1.95;color:#e7f3ff;margin:0}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.hero .btn-secondary{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7);color:#fff}.hero .btn-secondary:hover{background:#fff;color:var(--color-primary)}.hero-data{display:flex;gap:28px;flex-wrap:wrap;margin-top:40px}.hero-data div{padding-left:14px;border-left:2px solid #74d7e6}.hero-data strong{display:block;font-size:21px;line-height:1.25}.hero-data span{font-size:13px;color:#d3e9fc}.cut{position:absolute;z-index:2;bottom:-1px;left:0;width:100%;height:42px;background:#fff;clip-path:polygon(0 60%,100% 0,100% 100%,0 100%)}
    section{padding:86px 0}.eyebrow{display:inline-block;color:var(--color-primary);font-size:13px;font-weight:800;letter-spacing:.08em}.section-title{font-size:34px;line-height:1.35;margin:9px 0 13px;font-weight:800;color:var(--color-ink)}.lead{margin:0;color:var(--color-muted);max-width:760px;font-size:16px}.soft{background:var(--color-surface-soft)}.section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:35px}
    .feature-layout{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:stretch}.feature-intro{padding:28px 30px;background:#123f78;color:#fff;border-radius:var(--radius-lg);position:relative;overflow:hidden}.feature-intro:after{content:"01";position:absolute;right:18px;bottom:-32px;color:rgba(255,255,255,.1);font-size:150px;font-weight:900}.feature-intro h3{font-size:27px;line-height:1.42;position:relative}.feature-intro p{color:#d5eaff;position:relative}.feature-list{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden}.feature-row{display:grid;grid-template-columns:62px 1fr auto;gap:16px;padding:22px 24px;border-bottom:1px solid var(--color-border);align-items:center;transition:.2s}.feature-row:last-child{border:0}.feature-row:hover{background:#f7fbff}.num{font-size:14px;font-weight:800;color:var(--color-primary)}.feature-row h3{margin:0;font-size:18px}.feature-row p{margin:3px 0 0;color:var(--color-muted);font-size:14px}.arrow{color:var(--color-primary);font-size:21px}
    .trust-strip{padding:25px 0;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);background:#fff}.trust-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:18px;align-items:center}.trust-grid strong{font-size:17px}.trust-item{border-left:1px solid var(--color-border);padding-left:20px}.trust-item b{display:block;color:var(--color-primary);font-size:20px}.trust-item span{font-size:13px;color:var(--color-muted)}
    .scenes{display:grid;grid-template-columns:1.12fr .88fr;gap:28px}.scene-main{position:relative;overflow:hidden;min-height:430px;border-radius:var(--radius-lg);background:#123e73}.scene-main img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.72}.scene-copy{position:absolute;inset:auto 0 0;padding:35px;color:#fff;background:linear-gradient(transparent,rgba(8,38,76,.93))}.scene-copy h3{font-size:29px;margin:0 0 8px}.scene-copy p{margin:0;color:#e0efff}.scene-list{display:grid;gap:15px}.scene-item{display:grid;grid-template-columns:48px 1fr;gap:15px;padding:20px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:0 6px 18px rgba(19,62,108,.05);transition:.2s}.scene-item:hover{transform:translateX(4px);border-color:#9bc6ef}.scene-icon{width:43px;height:43px;display:grid;place-items:center;background:#eaf4ff;border-radius:10px;color:var(--color-primary);font-weight:900}.scene-item h3{margin:0;font-size:17px}.scene-item p{margin:4px 0 0;font-size:14px;color:var(--color-muted)}
    .story-grid{display:grid;grid-template-columns:7fr 5fr;gap:42px;align-items:center}.story-image{height:405px;border-radius:var(--radius-lg);overflow:hidden;background:#d9e8f8}.story-image img{height:100%;width:100%;object-fit:cover}.story-copy p{color:#536783;margin:0 0 17px}.quote{margin:25px 0;padding:19px 22px;background:#eef7ff;border-left:4px solid var(--color-accent);color:#254b73;font-size:16px}.check-list{list-style:none;padding:0;margin:18px 0}.check-list li{padding:9px 0 9px 27px;position:relative;border-bottom:1px dashed #d8e5f0;color:#405a79}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--color-primary);font-weight:900}
    .case-board{display:grid;grid-template-columns:1.1fr .9fr;gap:26px}.case-feature{padding:34px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--color-border);box-shadow:var(--shadow-card)}.case-tag,.tag{display:inline-block;padding:4px 9px;border-radius:6px;background:#e9f7f8;color:#087888;font-size:12px;font-weight:700}.case-feature h3{font-size:27px;margin:15px 0 10px}.case-feature p{color:var(--color-muted)}.case-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:25px}.case-meta div{padding:14px;background:#f5f9fd;border-radius:9px}.case-meta b{display:block;font-size:13px;color:var(--color-primary)}.case-meta span{display:block;font-size:13px;color:var(--color-muted);margin-top:4px}.case-stack{display:grid;gap:14px}.mini-case{padding:20px 22px;border-radius:var(--radius-md);background:#123f78;color:#fff}.mini-case:nth-child(2){background:#0d7e91}.mini-case h3{margin:7px 0;font-size:18px}.mini-case p{font-size:14px;color:#e2f2ff;margin:0}
    .testimonial{background:#0d3970;color:#fff;position:relative;overflow:hidden}.testimonial:before{content:"“";position:absolute;font-size:250px;line-height:1;left:6%;top:-28px;color:rgba(255,255,255,.07);font-family:serif}.testimonial-grid{position:relative;display:grid;grid-template-columns:4fr 8fr;gap:45px;align-items:center}.testimonial .section-title{color:#fff}.testimonial .lead{color:#c9ddf4}.quote-card{border-left:3px solid #5ed2de;padding:9px 0 9px 26px}.quote-card p{margin:0;font-size:21px;line-height:1.75}.quote-card footer{margin-top:18px;color:#a9c9e8;font-size:14px}
    .plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}.plan{background:#fff;border:1px solid var(--color-border);padding:28px;border-radius:var(--radius-md);box-shadow:var(--shadow-card);position:relative}.plan.recommend{border:2px solid var(--color-primary);transform:translateY(-10px)}.recommend-mark{position:absolute;right:15px;top:-14px;background:var(--color-primary);color:#fff;border-radius:6px;padding:4px 9px;font-size:12px;font-weight:800}.plan h3{margin:0;font-size:22px}.plan p{font-size:14px;color:var(--color-muted);min-height:49px}.plan ul{list-style:none;padding:0;margin:18px 0}.plan li{padding:8px 0;border-bottom:1px solid #e6eef6;font-size:14px;color:#405875}.plan li:before{content:"•";color:var(--color-accent);font-weight:bold;margin-right:8px}.plan .btn{width:100%;margin-top:8px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:36px}.step{padding:0 24px 0 0;position:relative}.step:not(:last-child):after{content:"";position:absolute;left:45px;right:0;top:21px;height:1px;background:#bcd8ef}.step-no{position:relative;z-index:1;display:grid;place-items:center;width:43px;height:43px;border-radius:50%;background:#fff;border:2px solid var(--color-primary);color:var(--color-primary);font-weight:800}.step h3{font-size:17px;margin:14px 0 7px}.step p{font-size:14px;color:var(--color-muted);margin:0}
    .news-layout{display:grid;grid-template-columns:8fr 4fr;gap:36px}.news-list{border-top:1px solid var(--color-border)}.news-item{display:grid;grid-template-columns:108px 1fr auto;gap:20px;padding:22px 0;border-bottom:1px solid var(--color-border);align-items:center}.news-date{color:var(--color-primary);font-weight:800;font-size:14px}.news-date small{display:block;color:var(--color-muted);font-weight:500}.news-item h3{font-size:18px;margin:0 0 4px}.news-item p{font-size:14px;color:var(--color-muted);margin:0}.news-link{color:var(--color-primary);font-size:14px;font-weight:700;white-space:nowrap}.news-link:hover{color:var(--color-primary-dark);text-decoration:underline}.news-side{padding:26px;background:#eaf6ff;border-radius:var(--radius-lg)}.news-side h3{margin-top:0;font-size:22px}.topic-link{display:block;padding:13px 0;border-bottom:1px solid #cfe3f3;color:#315578;font-weight:700}.topic-link:hover{color:var(--color-primary);padding-left:4px}
    .brand-copy{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}.brand-copy .section-title{position:sticky;top:100px}.copy-body p{margin:0 0 17px;color:#506680}.copy-body p:first-letter{color:var(--color-primary);font-size:30px;font-weight:800;float:left;line-height:1;padding:5px 7px 0 0}
    .faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:44px}.faq-grid details{border-bottom:1px solid var(--color-border);padding:0}.faq-grid summary{list-style:none;padding:19px 38px 19px 0;position:relative;cursor:pointer;font-size:17px;font-weight:750;color:#274565}.faq-grid summary::-webkit-details-marker{display:none}.faq-grid summary:after{content:"+";position:absolute;right:7px;top:13px;font-size:25px;color:var(--color-primary);transition:.2s}.faq-grid details[open] summary{color:var(--color-primary)}.faq-grid details[open] summary:after{transform:rotate(45deg)}.faq-answer{padding:0 35px 20px 0;color:var(--color-muted);font-size:15px}
    .cta{padding:72px 0;background:#1673c9 url('/assets/images/backpic/back-3.webp') center/cover no-repeat;position:relative;color:#fff}.cta:before{content:"";position:absolute;inset:0;background:rgba(10,74,142,.88)}.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{font-size:34px;line-height:1.35;margin:0 0 10px}.cta p{margin:0;color:#e2f0ff;max-width:700px}.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}
    .float-bar{position:fixed;z-index:40;bottom:17px;left:50%;transform:translateX(-50%);width:min(920px,calc(100% - 28px));padding:10px 12px 10px 19px;border:1px solid #b6d6f2;background:rgba(255,255,255,.96);box-shadow:0 12px 30px rgba(17,53,92,.2);border-radius:12px;display:flex;justify-content:space-between;align-items:center;gap:15px;backdrop-filter:blur(9px)}.float-bar p{margin:0;color:#46617e;font-size:14px}.float-bar strong{color:var(--color-primary)}
    footer{background:#102f58;color:#d3e2f2;padding:64px 0 86px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:30px}.footer-brand{color:#fff}.footer-brand .brand{color:#fff}.footer-brand p{font-size:14px;color:#b7cce3;max-width:330px}.footer-title{color:#fff;font-size:15px;margin:5px 0 15px}.footer-links a{display:block;font-size:14px;color:#b7cce3;padding:4px 0}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(198,220,242,.2);margin-top:35px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:#aac1d9}.footer-bottom a{color:#d8ebfc}.footer-bottom a:hover{text-decoration:underline}
    @media(max-width:1100px){.nav-links a{padding:8px 7px;font-size:13px}.hero h1{font-size:46px}.feature-layout,.story-grid,.case-board,.news-layout{gap:24px}.footer-grid{grid-template-columns:2fr 1fr 1fr}.footer-grid>div:last-child{grid-column:1/-1}.trust-grid{grid-template-columns:1fr 1fr}.trust-grid strong{grid-column:1/-1}.plan{padding:22px}}
    @media(max-width:850px){section{padding:62px 0}.nav-links{display:none}.menu-toggle{display:block}.nav-links.open{display:flex;position:absolute;top:76px;left:0;right:0;padding:14px 24px 22px;background:#fff;box-shadow:0 14px 25px rgba(16,55,96,.12);flex-direction:column;align-items:stretch}.nav-links.open a{padding:12px}.nav-links.open .nav-cta{margin:8px 0 0}.hero{min-height:530px}.hero-inner{padding:57px 0 75px}.hero h1{font-size:39px}.feature-layout,.scenes,.story-grid,.case-board,.testimonial-grid,.news-layout,.brand-copy,.faq-grid{grid-template-columns:1fr}.section-head{display:block}.section-head .lead{margin-top:10px}.story-image{height:330px}.brand-copy .section-title{position:static}.faq-grid{gap:20px}.plan-grid{grid-template-columns:1fr}.plan.recommend{transform:none}.steps{grid-template-columns:1fr 1fr;gap:26px}.step{padding-right:10px}.step:not(:last-child):after{display:none}.cta-inner{display:block}.cta-actions{margin-top:24px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
    @media(max-width:560px){.shell{width:min(100% - 32px,var(--container-width))}.nav-wrap{height:66px}.brand{font-size:18px}.nav-links.open{top:66px;padding:12px 16px 18px}.hero h1{font-size:32px}.hero p{font-size:16px}.hero-data{gap:15px}.hero-data strong{font-size:18px}.section-title{font-size:27px}.feature-intro{padding:22px}.feature-row{grid-template-columns:38px 1fr;padding:18px}.feature-row .arrow{display:none}.trust-grid{grid-template-columns:1fr}.trust-item{border-left:0;border-top:1px solid var(--color-border);padding:13px 0 0}.scene-main{min-height:355px}.scene-copy{padding:23px}.scene-copy h3{font-size:24px}.case-meta{grid-template-columns:1fr}.news-item{grid-template-columns:1fr;padding:19px 0;gap:8px}.news-link{padding-top:3px}.steps{grid-template-columns:1fr}.cta h2{font-size:28px}.cta-actions .btn{width:100%}.float-bar{padding:10px 10px 10px 14px}.float-bar p{font-size:12px}.float-bar .btn{min-height:39px;padding:8px 12px;font-size:13px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{padding-bottom:30px}}

/* roulang page: category1 */
:root{
      --color-primary:#1769c2;--color-primary-dark:#0b4d99;--color-accent:#0b9caf;
      --color-ink:#172b4d;--color-muted:#60718a;--color-surface:#fff;--color-surface-soft:#f3f8fd;
      --color-border:#dce7f2;--shadow-card:0 10px 30px rgba(19,62,108,.09);--shadow-hover:0 18px 40px rgba(19,62,108,.16);
      --radius-sm:8px;--radius-md:14px;--radius-lg:20px;--container-width:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fff;color:var(--color-ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.76}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:#cce6ff;color:#083e78}
    .container{width:min(calc(100% - 48px),var(--container-width));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(220,231,242,.9);box-shadow:0 4px 18px rgba(20,61,102,.04);backdrop-filter:blur(10px)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--color-ink);white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--color-primary);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 7px 15px rgba(23,105,194,.24)}
    .nav-links{display:flex;align-items:center;gap:3px}
    .nav-links a{padding:9px 10px;border-radius:8px;font-size:14px;color:#435774;transition:.2s ease}
    .nav-links a:hover{color:var(--color-primary);background:#eef6ff;transform:translateY(-1px)}
    .nav-links a.active{color:var(--color-primary);font-weight:700;background:#eaf4ff}
    .nav-cta{margin-left:8px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:9px;font-size:15px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
    .btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible,.menu-toggle:focus-visible{outline:3px solid #8cc8ff;outline-offset:3px}
    .btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 17px rgba(23,105,194,.22)}
    .btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(23,105,194,.28)}
    .btn-primary:active{transform:translateY(0)}
    .btn-secondary{background:#fff;color:var(--color-primary);border:1px solid #aacfee}
    .btn-secondary:hover{background:#eef6ff;transform:translateY(-2px)}
    .btn-light{background:#fff;color:#104f96}
    .btn-light:hover{background:#e9f4ff;transform:translateY(-2px)}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);border-radius:9px;background:#fff;color:var(--color-primary);font-size:23px}
    section{padding:82px 0}
    .eyebrow{display:inline-block;color:var(--color-primary);font-size:13px;font-weight:800;letter-spacing:.08em}
    .section-title{font-size:34px;line-height:1.35;margin:9px 0 13px;font-weight:800;color:var(--color-ink)}
    .lead{margin:0;color:var(--color-muted);max-width:760px;font-size:16px}
    .section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:35px}
    .crumb{padding:18px 0;font-size:14px;color:var(--color-muted)}
    .crumb a{color:var(--color-primary);font-weight:700}
    .crumb span{margin:0 8px;color:#9badc2}
    .access-hero{position:relative;overflow:hidden;background:#103f78 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;color:#fff;min-height:530px}
    .access-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,43,82,.96),rgba(11,61,116,.88) 48%,rgba(11,71,132,.58))}
    .access-hero:after{content:"";position:absolute;width:430px;height:430px;border:50px solid rgba(137,215,234,.15);border-radius:50%;right:-105px;top:-135px}
    .access-hero .container{position:relative;z-index:1}
    .hero-grid{display:grid;grid-template-columns:6.5fr 5.5fr;gap:45px;align-items:center;padding:38px 0 70px}
    .hero-copy h1{margin:16px 0 18px;font-size:51px;line-height:1.25;font-weight:850}
    .hero-copy p{margin:0;max-width:640px;color:#dceeff;font-size:17px;line-height:1.95}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}
    .hero-copy .btn-secondary{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.7);color:#fff}
    .hero-copy .btn-secondary:hover{background:#fff;color:var(--color-primary)}
    .rank-panel{background:rgba(255,255,255,.96);color:var(--color-ink);border-radius:var(--radius-lg);box-shadow:0 24px 48px rgba(3,29,64,.25);padding:23px;border:1px solid rgba(255,255,255,.45)}
    .rank-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:15px;border-bottom:1px solid var(--color-border)}
    .rank-top strong{font-size:17px}.status{color:#078878;font-size:12px;font-weight:800;background:#e0f7f4;padding:4px 8px;border-radius:20px}
    .rank-row{display:grid;grid-template-columns:34px 1fr auto;gap:12px;align-items:center;padding:15px 0;border-bottom:1px solid #e9f0f7}
    .rank-row:last-child{border-bottom:0;padding-bottom:2px}
    .rank-num{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:#eef6ff;color:var(--color-primary);font-weight:850;font-size:13px}
    .rank-row b{display:block;font-size:14px}.rank-row small{display:block;color:var(--color-muted);font-size:12px;margin-top:1px}
    .rank-go{font-size:18px;color:var(--color-primary)}
    .notice-bar{background:#eaf6ff;border-top:1px solid #d7eaf9;border-bottom:1px solid #d7eaf9;padding:17px 0}
    .notice-inner{display:flex;gap:16px;align-items:flex-start;color:#345270;font-size:14px}.notice-dot{color:var(--color-accent);font-size:20px;line-height:1.2}
    .access-grid{display:grid;grid-template-columns:4.5fr 7.5fr;gap:32px;align-items:start}
    .side-intro{padding:30px;background:#f2f8fe;border-radius:var(--radius-lg);border:1px solid #dceaf7}
    .side-intro h3{font-size:25px;line-height:1.45;margin:12px 0}.side-intro p{color:var(--color-muted);margin:0}
    .mini-points{list-style:none;padding:0;margin:22px 0 0}.mini-points li{padding:11px 0;border-bottom:1px solid #d8e6f2;font-size:14px}.mini-points li:last-child{border:0}.mini-points li:before{content:"✓";color:var(--color-accent);font-weight:900;margin-right:9px}
    .step-list{border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card)}
    .step{display:grid;grid-template-columns:70px 1fr auto;gap:18px;padding:23px 26px;align-items:center;background:#fff;border-bottom:1px solid var(--color-border);transition:.2s}
    .step:last-child{border:0}.step:hover{background:#f7fbff}.step-no{font-size:25px;font-weight:850;color:#b5d6f5}.step h3{margin:0;font-size:18px}.step p{margin:4px 0 0;color:var(--color-muted);font-size:14px}.step-arrow{font-size:21px;color:var(--color-primary)}
    .soft{background:var(--color-surface-soft)}
    .check-layout{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
    .check-image{min-height:400px;overflow:hidden;border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}.check-image img{width:100%;height:400px;object-fit:cover}
    .check-list{list-style:none;margin:25px 0;padding:0}.check-list li{position:relative;padding:0 0 18px 30px;color:#435774}.check-list li:before{content:"";position:absolute;left:0;top:8px;width:12px;height:12px;background:#d9eff3;border:3px solid var(--color-accent);border-radius:50%}
    .tag{display:inline-block;padding:4px 9px;border-radius:20px;background:#eaf4ff;color:var(--color-primary);font-weight:700;font-size:12px}
    .scene-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:18px}
    .scene-card{min-height:250px;padding:25px;position:relative;overflow:hidden;border:1px solid var(--color-border);background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-card);transition:.25s}
    .scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#a8cff0}.scene-card:first-child{background:#123f78;color:#fff}.scene-card:first-child p{color:#d5eaff}.scene-card h3{font-size:20px;margin:15px 0 8px}.scene-card p{font-size:14px;color:var(--color-muted);margin:0}.scene-card .num{font-size:38px;color:#a6d7f0;font-weight:850;line-height:1}.scene-card:first-child .num{color:#76d7e5}
    .article-layout{display:grid;grid-template-columns:8fr 4fr;gap:38px;align-items:start}
    .article-copy{font-size:16px;color:#405570}.article-copy p{margin:0 0 18px}.article-copy h3{color:var(--color-ink);font-size:22px;margin:30px 0 10px}.article-copy blockquote{border-left:4px solid var(--color-primary);margin:25px 0;padding:14px 20px;background:#f1f8ff;color:#345270;font-weight:700}
    .info-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:25px}.info-card h3{margin:0 0 12px;font-size:20px}.info-card dl{margin:0}.info-card div{padding:13px 0;border-bottom:1px solid var(--color-border)}.info-card div:last-child{border:0}.info-card dt{font-size:13px;color:var(--color-muted)}.info-card dd{margin:2px 0 0;color:var(--color-ink);font-weight:700;font-size:15px}
    .link-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}.link-card{display:flex;gap:16px;padding:18px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);transition:.2s}.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);border-color:#9cc8ee}.link-card b{display:block;font-size:16px}.link-card p{margin:3px 0 0;color:var(--color-muted);font-size:13px}.link-icon{width:40px;height:40px;flex:0 0 40px;display:grid;place-items:center;border-radius:10px;background:#eaf4ff;color:var(--color-primary);font-weight:850}
    .faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:46px;align-items:start}.faq-list{border-top:1px solid var(--color-border)}details{border-bottom:1px solid var(--color-border);background:#fff}summary{list-style:none;cursor:pointer;padding:20px 42px 20px 0;font-weight:750;position:relative;color:var(--color-ink)}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:6px;top:15px;color:var(--color-primary);font-size:25px;font-weight:400;transition:.2s}details[open] summary{color:var(--color-primary)}details[open] summary:after{transform:rotate(45deg)}.faq-answer{padding:0 25px 20px 0;color:var(--color-muted);font-size:15px}
    .cta{padding:0 0 82px}.cta-box{position:relative;overflow:hidden;padding:45px 52px;background:#103f78;color:#fff;border-radius:var(--radius-lg)}.cta-box:after{content:"";position:absolute;right:-72px;bottom:-110px;width:370px;height:300px;border-radius:50%;border:48px solid rgba(117,215,229,.16)}.cta-flex{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{font-size:30px;line-height:1.4;margin:0 0 8px}.cta p{margin:0;color:#d8ecff;max-width:680px}
    footer{background:#102b4c;color:#d3e0ef;padding:58px 0 26px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px;padding-bottom:35px}.footer-brand{color:#fff}.footer-brand .brand{color:#fff}.footer-brand p{color:#afc4da;max-width:380px;font-size:14px;margin:15px 0}.footer-title{color:#fff;font-size:15px;font-weight:800;margin:0 0 12px}.footer-links{display:grid;gap:7px}.footer-links a{color:#b9ccdf;font-size:14px;transition:.2s}.footer-links a:hover{color:#fff;padding-left:3px}.footer-bottom{border-top:1px solid rgba(196,218,239,.18);padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:#9db5cd}.footer-bottom a{color:#c9e1f7}.footer-bottom a:hover{color:#fff}
    @media(max-width:1024px){.nav-links a{padding:8px 7px;font-size:13px}.nav-cta{display:none}.hero-grid{gap:26px}.hero-copy h1{font-size:43px}.scene-grid{grid-template-columns:1fr 1fr}.scene-card:first-child{grid-column:span 2}.access-grid,.check-layout,.article-layout,.faq-wrap{gap:28px}}
    @media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container-width))}.nav-wrap{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:14px 16px 20px;background:#fff;border-bottom:1px solid var(--color-border);box-shadow:0 13px 20px rgba(19,62,108,.1);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 13px}.nav-links .nav-cta{display:inline-flex;margin:6px 0 0}.hero-grid,.access-grid,.check-layout,.article-layout,.faq-wrap{grid-template-columns:1fr}.access-hero{min-height:auto}.hero-grid{padding:24px 0 53px}.hero-copy h1{font-size:38px}.rank-panel{margin-top:4px}.section-head{display:block}.section-head .lead{margin-top:10px}section{padding:61px 0}.check-image,.check-image img{min-height:300px;height:300px}.faq-wrap>div:first-child{margin-bottom:2px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:span 2}.cta-box{padding:36px 28px}.cta-flex{display:block}.cta-flex .btn{margin-top:22px}}
    @media(max-width:520px){.hero-copy h1{font-size:32px}.hero-copy p{font-size:15px}.hero-actions .btn{width:100%}.rank-row{grid-template-columns:30px 1fr auto}.section-title{font-size:28px}.step{grid-template-columns:45px 1fr;padding:19px}.step-arrow{display:none}.scene-grid,.link-list,.footer-grid{grid-template-columns:1fr}.scene-card:first-child,.footer-brand{grid-column:auto}.scene-card{min-height:205px}.cta h2{font-size:25px}.footer-bottom{display:block;line-height:2}.footer-bottom span{display:block}.crumb{white-space:nowrap;overflow:auto}.notice-inner{font-size:13px}}

/* roulang page: category2 */
:root{
      --color-primary:#1769c2;--color-primary-dark:#0b4d99;--color-accent:#0b9caf;
      --color-ink:#172b4d;--color-muted:#60718a;--color-surface:#fff;--color-surface-soft:#f3f8fd;
      --color-border:#dce7f2;--shadow-card:0 10px 30px rgba(19,62,108,.09);--shadow-hover:0 18px 40px rgba(19,62,108,.16);
      --radius-sm:8px;--radius-md:14px;--radius-lg:20px;--container-width:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fff;color:var(--color-ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.76}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:#cce7ff;color:#123d70}
    .container{width:min(calc(100% - 48px),var(--container-width));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(220,231,242,.9);box-shadow:0 4px 18px rgba(20,61,102,.04);backdrop-filter:blur(10px)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--color-ink);white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--color-primary);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 7px 15px rgba(23,105,194,.24)}
    .nav-links{display:flex;align-items:center;gap:3px}
    .nav-links a{padding:9px 10px;border-radius:8px;font-size:14px;color:#435774;transition:.2s ease}
    .nav-links a:hover{color:var(--color-primary);background:#eef6ff;transform:translateY(-1px)}
    .nav-links a.active{color:var(--color-primary);font-weight:700;background:#eaf4ff}
    .nav-cta{margin-left:8px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:9px;font-size:15px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
    .btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible,.menu-toggle:focus-visible{outline:3px solid #8cc8ff;outline-offset:3px}
    .btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 17px rgba(23,105,194,.22)}
    .btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(23,105,194,.28)}
    .btn-primary:active{transform:translateY(0)}
    .btn-secondary{background:#fff;color:var(--color-primary);border:1px solid #aacfee}
    .btn-secondary:hover{background:#eef6ff;transform:translateY(-2px)}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);border-radius:9px;background:#fff;color:var(--color-primary);font-size:23px}
    .page-hero{position:relative;overflow:hidden;background:#eef6fd;border-bottom:1px solid var(--color-border)}
    .page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(243,248,253,.98),rgba(243,248,253,.82),rgba(243,248,253,.40));z-index:1}
    .page-hero .hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;opacity:.82}
    .hero-inner{position:relative;z-index:2;padding:52px 0 66px;max-width:790px}
    .breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:13px;color:#5f7693}
    .breadcrumb a:hover{color:var(--color-primary)}
    .breadcrumb span{color:#91a8c0}
    .eyebrow{display:inline-block;margin-top:27px;color:var(--color-primary);font-size:13px;font-weight:800;letter-spacing:.08em}
    h1{font-size:48px;line-height:1.25;margin:12px 0 16px;font-weight:850;letter-spacing:0}
    .hero-copy{margin:0;max-width:700px;font-size:17px;color:#445f7c}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}
    .hero-status{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:28px;color:#55718e;font-size:13px}
    .status-dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:#18a579;margin-right:7px;box-shadow:0 0 0 4px rgba(24,165,121,.12)}
    section{padding:82px 0}
    .soft-section{background:var(--color-surface-soft)}
    .eyebrow-block{color:var(--color-primary);font-size:13px;font-weight:800;letter-spacing:.08em}
    .section-title{font-size:34px;line-height:1.35;margin:8px 0 12px;font-weight:800;color:var(--color-ink)}
    .lead{margin:0;color:var(--color-muted);max-width:760px;font-size:16px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
    .tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:#e8f5fa;color:#087587;font-size:12px;font-weight:700}
    .feature-stage{display:grid;grid-template-columns:5fr 7fr;gap:30px;align-items:stretch}
    .feature-intro{padding:35px;border-radius:var(--radius-lg);background:#123f78;color:#fff;position:relative;overflow:hidden}
    .feature-intro:after{content:"功能";position:absolute;right:-15px;bottom:-38px;font-size:92px;font-weight:900;color:rgba(255,255,255,.09)}
    .feature-intro>*{position:relative;z-index:1}
    .feature-intro h2{font-size:29px;line-height:1.45;margin:18px 0 13px}
    .feature-intro p{color:#d7eafd;margin:0}
    .feature-intro .btn{margin-top:24px}
    .feature-list{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden}
    .feature-row{display:grid;grid-template-columns:58px 1fr auto;align-items:center;gap:17px;padding:21px 24px;border-bottom:1px solid var(--color-border);transition:.2s ease}
    .feature-row:last-child{border-bottom:0}
    .feature-row:hover{background:#f7fbff}
    .feature-number{width:42px;height:42px;display:grid;place-items:center;border-radius:10px;background:#eaf4ff;color:var(--color-primary);font-weight:800}
    .feature-row h3{margin:0;font-size:17px}
    .feature-row p{margin:3px 0 0;color:var(--color-muted);font-size:14px;line-height:1.6}
    .arrow{font-size:21px;color:var(--color-primary)}
    .filter-bar{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:25px}
    .filter-chip{padding:7px 13px;border:1px solid var(--color-border);border-radius:999px;color:#58718c;background:#fff;font-size:13px;font-weight:700;transition:.2s}
    .filter-chip:hover,.filter-chip.active{border-color:#9bc8f5;background:#eaf4ff;color:var(--color-primary)}
    .primary-function{display:grid;grid-template-columns:1.08fr .92fr;background:#fff;border:1px solid var(--color-border);box-shadow:var(--shadow-card);border-radius:var(--radius-lg);overflow:hidden}
    .primary-function img{width:100%;height:100%;min-height:350px;object-fit:cover}
    .primary-copy{padding:42px}
    .primary-copy h3{font-size:28px;line-height:1.4;margin:12px 0}
    .primary-copy p{color:var(--color-muted);margin:0}
    .check-list{list-style:none;padding:0;margin:22px 0}
    .check-list li{position:relative;padding:8px 0 8px 29px;border-bottom:1px dashed #dbe6f0;color:#36516e}
    .check-list li:before{content:"✓";position:absolute;left:0;color:#0b9caf;font-weight:900}
    .mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;margin-top:18px}
    .mini-card{padding:22px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);transition:.2s;box-shadow:0 4px 13px rgba(19,62,108,.04)}
    .mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#a9cdea}
    .mini-card b{display:block;font-size:16px;margin:11px 0 5px}
    .mini-card p{margin:0;color:var(--color-muted);font-size:14px;line-height:1.65}
    .scenario-layout{display:grid;grid-template-columns:4fr 8fr;gap:30px}
    .scenario-aside{padding:30px;background:#e8f3ff;border-radius:var(--radius-lg)}
    .scenario-aside h2{font-size:27px;line-height:1.42;margin:11px 0}
    .scenario-aside p{color:#536e89;margin:0}
    .scenario-list{display:grid;gap:1px;background:var(--color-border);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}
    .scenario-row{background:#fff;padding:24px 26px;display:grid;grid-template-columns:48px 1fr auto;gap:17px;align-items:center;transition:.2s}
    .scenario-row:hover{background:#f8fbff}
    .scenario-row strong{display:block;font-size:17px}
    .scenario-row p{margin:3px 0 0;color:var(--color-muted);font-size:14px}
    .step-num{width:37px;height:37px;border-radius:50%;display:grid;place-items:center;background:#1769c2;color:#fff;font-weight:800;font-size:14px}
    .content-story{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
    .story-image{position:relative}
    .story-image img{height:435px;width:100%;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}
    .story-note{position:absolute;right:-20px;bottom:25px;max-width:230px;padding:18px;background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-hover);border-left:4px solid var(--color-accent);font-size:14px;color:#48637f}
    .story-copy h2{font-size:32px;line-height:1.4;margin:9px 0 15px}
    .story-copy p{color:var(--color-muted);margin:0 0 15px}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .process-card{position:relative;padding:27px 23px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:0 5px 16px rgba(19,62,108,.05)}
    .process-card:not(:last-child):after{content:"→";position:absolute;right:-17px;top:42px;width:32px;text-align:center;color:#72a9dd;font-size:22px;z-index:2}
    .process-card span{font-size:13px;color:var(--color-primary);font-weight:800}
    .process-card h3{font-size:18px;margin:8px 0}
    .process-card p{font-size:14px;color:var(--color-muted);margin:0}
    .notice-wrap{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .notice-card{padding:30px;border-radius:var(--radius-lg);border:1px solid var(--color-border);background:#fff}
    .notice-card h3{font-size:20px;margin:0 0 13px}
    .notice-card p{color:var(--color-muted);margin:0}
    .notice-card ul{padding-left:20px;color:#4c6680;margin:15px 0 0}
    .notice-card li{padding:4px 0}
    .faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:50px;align-items:start}
    .faq-side h2{font-size:31px;line-height:1.4;margin:8px 0 13px}
    .faq-side p{margin:0;color:var(--color-muted)}
    .faq-list{border-top:1px solid var(--color-border)}
    details{border-bottom:1px solid var(--color-border);background:#fff}
    summary{list-style:none;padding:20px 34px 20px 0;position:relative;font-size:17px;font-weight:750;cursor:pointer}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:3px;top:16px;color:var(--color-primary);font-size:25px;font-weight:400;transition:.2s}
    details[open] summary{color:var(--color-primary)}
    details[open] summary:after{content:"−";transform:rotate(180deg)}
    .faq-answer{padding:0 25px 21px 0;color:var(--color-muted);font-size:15px}
    .cta-panel{position:relative;overflow:hidden;padding:52px 56px;border-radius:var(--radius-lg);background:#0e4e93;color:#fff}
    .cta-panel:after{content:"";position:absolute;width:310px;height:310px;border:45px solid rgba(128,217,229,.20);border-radius:50%;right:-100px;top:-130px}
    .cta-panel>*{position:relative;z-index:1}
    .cta-panel h2{font-size:34px;line-height:1.35;margin:8px 0 13px}
    .cta-panel p{max-width:700px;color:#d8ebfd;margin:0}
    .cta-panel .btn{margin-top:24px}
    footer{background:#122d50;color:#d6e2ef;padding:58px 0 22px;margin-top:0}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:36px}
    .footer-brand{color:#fff;font-size:21px;font-weight:800;display:flex;gap:10px;align-items:center}
    .footer-brand .brand-mark{background:#2b83db}
    .footer-desc{max-width:340px;color:#aebfd2;font-size:14px;margin:15px 0}
    .footer-col h3{color:#fff;font-size:15px;margin:0 0 13px}
    .footer-col a{display:block;color:#afc0d3;font-size:14px;padding:4px 0;transition:.2s}
    .footer-col a:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{border-top:1px solid rgba(214,226,239,.18);padding-top:20px;display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;color:#9db1c7;font-size:13px}
    .footer-bottom a:hover{color:#fff}
    @media(max-width:1024px){
      .nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:13px}.nav-cta{margin-left:3px}
      .feature-stage,.scenario-layout,.faq-layout{grid-template-columns:1fr}
      .content-story{gap:32px}.process-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:2fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container-width))}
      .nav-wrap{height:68px}.menu-toggle{display:grid;place-items:center}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:14px 16px 20px;background:#fff;border-bottom:1px solid var(--color-border);box-shadow:0 14px 25px rgba(19,62,108,.12);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{font-size:15px;padding:12px}.nav-cta{margin:8px 0 0}
      .hero-inner{padding:38px 0 50px}h1{font-size:38px}.section-title{font-size:29px}section{padding:62px 0}
      .primary-function,.content-story{grid-template-columns:1fr}.primary-function img{min-height:240px}.primary-copy{padding:29px}
      .mini-grid{grid-template-columns:1fr 1fr}.story-image img{height:330px}.story-note{right:12px;bottom:14px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:520px){
      .brand{font-size:18px}.brand-mark{width:31px;height:31px}.hero-copy{font-size:16px}h1{font-size:32px}
      .section-title,.story-copy h2,.faq-side h2{font-size:26px}.section-head{display:block;margin-bottom:25px}.section-head .btn{margin-top:18px}
      .feature-intro{padding:27px}.feature-row{grid-template-columns:43px 1fr;gap:12px;padding:18px}.feature-row .arrow{display:none}
      .mini-grid,.process-grid,.notice-wrap,.footer-grid{grid-template-columns:1fr}.scenario-row{grid-template-columns:40px 1fr;padding:19px}.scenario-row .arrow{display:none}
      .process-card:not(:last-child):after{content:"↓";right:50%;top:auto;bottom:-25px}.process-grid{gap:30px}
      .story-image img{height:270px}.story-note{position:static;max-width:none;margin-top:12px}.cta-panel{padding:35px 25px}.cta-panel h2{font-size:28px}
      .footer-bottom{display:block}.footer-bottom span,.footer-bottom a{display:inline-block;margin:4px 12px 4px 0}
    }

/* roulang page: category3 */
:root{
      --color-primary:#1769c2;
      --color-primary-dark:#0b4d99;
      --color-accent:#0b9caf;
      --color-ink:#172b4d;
      --color-muted:#60718a;
      --color-surface:#ffffff;
      --color-surface-soft:#f3f8fd;
      --color-border:#dce7f2;
      --shadow-card:0 10px 30px rgba(19,62,108,.09);
      --shadow-hover:0 18px 40px rgba(19,62,108,.16);
      --radius-sm:8px;
      --radius-md:14px;
      --radius-lg:20px;
      --container-width:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:#fff;color:var(--color-ink);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      line-height:1.76;-webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:#cfe7ff;color:#123f78}
    .container{width:min(calc(100% - 48px),var(--container-width));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
      border-bottom:1px solid rgba(220,231,242,.9);box-shadow:0 4px 18px rgba(20,61,102,.04);
      backdrop-filter:blur(10px);
    }
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--color-ink);white-space:nowrap}
    .brand-mark{
      width:34px;height:34px;border-radius:10px;background:var(--color-primary);
      display:grid;place-items:center;color:#fff;font-weight:900;
      box-shadow:0 7px 15px rgba(23,105,194,.24)
    }
    .nav-links{display:flex;align-items:center;gap:3px}
    .nav-links a{padding:9px 10px;border-radius:8px;font-size:14px;color:#435774;transition:.2s ease}
    .nav-links a:hover{color:var(--color-primary);background:#eef6ff;transform:translateY(-1px)}
    .nav-links a.active{color:var(--color-primary);font-weight:700;background:#eaf4ff}
    .nav-cta{margin-left:8px!important}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;
      padding:10px 18px;border-radius:9px;font-size:15px;font-weight:700;
      transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
    }
    .btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,textarea:focus-visible,
    select:focus-visible,summary:focus-visible,.menu-toggle:focus-visible{
      outline:3px solid #8cc8ff;outline-offset:3px;
    }
    .btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 17px rgba(23,105,194,.22)}
    .btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(23,105,194,.28)}
    .btn-primary:active{transform:translateY(0)}
    .btn-secondary{background:#fff;color:var(--color-primary);border:1px solid #aacfee}
    .btn-secondary:hover{background:#eef6ff;transform:translateY(-2px);border-color:#74afe2}
    .menu-toggle{
      display:none;width:44px;height:44px;border:1px solid var(--color-border);border-radius:9px;
      background:#fff;color:var(--color-primary);font-size:23px;line-height:1;
    }
    .breadcrumb{padding:22px 0 0;color:var(--color-muted);font-size:14px}
    .breadcrumb a{color:var(--color-primary)}
    .breadcrumb a:hover{text-decoration:underline}
    .breadcrumb span{margin:0 8px;color:#9aabc1}
    .page-hero{
      position:relative;overflow:hidden;min-height:530px;color:#fff;
      background:#0d4f94 url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    }
    .page-hero:before{
      content:"";position:absolute;inset:0;
      background:linear-gradient(90deg,rgba(7,45,87,.94) 0%,rgba(10,70,129,.82) 52%,rgba(11,74,136,.40) 100%);
    }
    .page-hero:after{
      content:"";position:absolute;right:7%;bottom:-108px;width:340px;height:340px;
      border:38px solid rgba(255,255,255,.13);border-radius:42px;transform:rotate(20deg);
    }
    .hero-inner{position:relative;z-index:1;padding:68px 0 78px;max-width:810px}
    .hero-kicker{
      display:inline-flex;align-items:center;gap:8px;padding:6px 11px;border-radius:99px;
      background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
      font-size:13px;font-weight:700;color:#e8f5ff;
    }
    .hero-kicker i{width:7px;height:7px;border-radius:50%;background:#70d7e4;display:inline-block}
    .page-hero h1{font-size:52px;line-height:1.26;margin:20px 0 16px;font-weight:850}
    .page-hero p{font-size:18px;line-height:1.92;color:#e3f1ff;margin:0;max-width:760px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:30px 0}
    .hero-points div{padding:12px 14px;border-left:2px solid #72d6e3;background:rgba(255,255,255,.08)}
    .hero-points strong{display:block;font-size:15px;color:#fff}
    .hero-points span{font-size:13px;color:#d1e9fb}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .page-hero .btn-secondary{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.67);color:#fff}
    .page-hero .btn-secondary:hover{background:#fff;color:var(--color-primary)}
    section{padding:82px 0}
    .soft-section{background:var(--color-surface-soft)}
    .eyebrow{display:inline-block;color:var(--color-primary);font-size:13px;font-weight:800;letter-spacing:.08em}
    .section-title{font-size:34px;line-height:1.38;margin:8px 0 12px;font-weight:800;color:var(--color-ink)}
    .lead{margin:0;color:var(--color-muted);max-width:760px;font-size:16px}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
    .section-head .lead{max-width:680px}
    .task-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:30px;align-items:stretch}
    .task-feature{
      position:relative;overflow:hidden;min-height:420px;padding:38px;
      border-radius:var(--radius-lg);background:#123f78;color:#fff;
    }
    .task-feature:after{
      content:"场景";position:absolute;right:-8px;bottom:-38px;font-size:108px;font-weight:900;
      color:rgba(255,255,255,.08);line-height:1;
    }
    .task-feature h3{position:relative;margin:18px 0 12px;font-size:30px;line-height:1.38}
    .task-feature p{position:relative;margin:0;color:#d6eafd}
    .task-feature .btn{position:relative;margin-top:26px}
    .number-tag{
      display:grid;place-items:center;width:38px;height:38px;border-radius:10px;
      background:#dff5f7;color:#087888;font-weight:900;font-size:14px;
    }
    .task-list{display:grid;gap:12px}
    .task-item{
      display:grid;grid-template-columns:43px 1fr 22px;gap:15px;align-items:center;padding:19px 20px;
      border-radius:var(--radius-md);background:#fff;border:1px solid var(--color-border);
      box-shadow:0 6px 18px rgba(19,62,108,.05);transition:.22s ease;
    }
    .task-item:hover{transform:translateX(4px);border-color:#9bc6ef;box-shadow:var(--shadow-card)}
    .task-item h3{margin:0;font-size:17px;line-height:1.4}
    .task-item p{margin:3px 0 0;font-size:14px;line-height:1.65;color:var(--color-muted)}
    .task-arrow{font-size:22px;color:var(--color-primary)}
    .journey{display:grid;grid-template-columns:250px 1fr;gap:48px;align-items:start}
    .journey-intro{position:sticky;top:100px}
    .journey-intro p{margin:14px 0 0;color:var(--color-muted)}
    .journey-steps{position:relative}
    .journey-steps:before{content:"";position:absolute;left:24px;top:28px;bottom:28px;border-left:1px dashed #9ec8eb}
    .journey-step{
      position:relative;display:grid;grid-template-columns:50px 1fr;gap:20px;padding:0 0 29px;
    }
    .journey-step:last-child{padding-bottom:0}
    .step-no{
      position:relative;z-index:1;width:50px;height:50px;display:grid;place-items:center;border-radius:50%;
      background:#eaf4ff;border:1px solid #b5d7f2;color:var(--color-primary);font-weight:900;
    }
    .step-content{padding:4px 0 0}
    .step-content h3{margin:0 0 5px;font-size:20px}
    .step-content p{margin:0;color:var(--color-muted)}
    .people-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:20px}
    .person-main{
      min-height:390px;position:relative;overflow:hidden;border-radius:var(--radius-lg);background:#0c4a8d;color:#fff;
    }
    .person-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62}
    .person-main:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,45,87,.92),rgba(8,45,87,.08) 72%)}
    .person-main-content{position:absolute;z-index:1;left:30px;right:30px;bottom:28px}
    .person-main-content h3{font-size:25px;margin:10px 0 8px}
    .person-main-content p{margin:0;color:#dceefe;font-size:15px}
    .person-card{
      padding:28px;border:1px solid var(--color-border);background:#fff;border-radius:var(--radius-md);
      box-shadow:var(--shadow-card);transition:.22s ease;display:flex;flex-direction:column;
    }
    .person-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .person-icon{
      width:48px;height:48px;display:grid;place-items:center;border-radius:13px;background:#eaf4ff;
      color:var(--color-primary);font-size:21px;font-weight:900;
    }
    .person-card h3{margin:20px 0 9px;font-size:20px}
    .person-card p{margin:0;color:var(--color-muted);font-size:15px}
    .person-card a{margin-top:auto;padding-top:18px;color:var(--color-primary);font-weight:700;font-size:14px}
    .person-card a:hover{color:var(--color-primary-dark)}
    .detail-layout{display:grid;grid-template-columns:5fr 7fr;gap:54px;align-items:center}
    .detail-image{position:relative}
    .detail-image img{width:100%;height:425px;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}
    .image-note{
      position:absolute;right:-18px;bottom:26px;max-width:230px;padding:17px 19px;background:#fff;
      box-shadow:var(--shadow-card);border-radius:var(--radius-md);border-left:4px solid var(--color-accent);
      color:var(--color-ink);font-size:14px;
    }
    .check-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:13px}
    .check-list li{position:relative;padding-left:31px;color:#405673}
    .check-list li:before{
      content:"✓";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;
      display:grid;place-items:center;background:#dff4f6;color:#058396;font-size:12px;font-weight:900;
    }
    .case-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:0;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid var(--color-border)}
    .case-side{padding:36px;background:#123f78;color:#fff}
    .case-side h2{font-size:29px;line-height:1.4;margin:14px 0}
    .case-side p{color:#d5eaff;margin:0}
    .case-side .btn{margin-top:25px}
    .case-list{background:#fff;padding:14px 30px}
    .case-row{padding:21px 0;border-bottom:1px solid var(--color-border)}
    .case-row:last-child{border-bottom:0}
    .case-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--color-muted)}
    .badge{display:inline-flex;align-items:center;padding:3px 8px;border-radius:99px;background:#eaf4ff;color:var(--color-primary);font-weight:700}
    .case-row h3{font-size:18px;margin:8px 0 5px}
    .case-row p{font-size:14px;color:var(--color-muted);margin:0}
    .resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .resource-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;box-shadow:0 7px 22px rgba(19,62,108,.06);transition:.22s ease}
    .resource-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .resource-card img{height:165px;width:100%;object-fit:cover}
    .resource-card-body{padding:20px}
    .resource-card h3{font-size:18px;line-height:1.45;margin:8px 0}
    .resource-card p{font-size:14px;color:var(--color-muted);margin:0 0 16px}
    .resource-card a{font-size:14px;font-weight:800;color:var(--color-primary)}
    .resource-card a:hover{color:var(--color-primary-dark)}
    .notice-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .notice-item{padding:23px 20px;border-top:3px solid #8cc8ff;background:#fff;border-radius:0 0 var(--radius-md) var(--radius-md);box-shadow:0 7px 19px rgba(19,62,108,.05)}
    .notice-item strong{display:block;font-size:16px;margin-bottom:6px}
    .notice-item span{font-size:14px;color:var(--color-muted)}
    .faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start}
    .faq-list{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);transition:.2s}
    details[open]{border-color:#9dc7eb;box-shadow:0 8px 22px rgba(19,62,108,.07)}
    summary{list-style:none;cursor:pointer;padding:19px 52px 19px 20px;font-weight:800;position:relative;line-height:1.5}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:20px;top:15px;color:var(--color-primary);font-size:26px;font-weight:400;transition:.2s}
    details[open] summary:after{transform:rotate(45deg)}
    .faq-answer{padding:0 20px 20px;color:var(--color-muted);font-size:15px}
    .faq-answer p{margin:0}
    .cta-band{padding:0 0 82px}
    .cta-box{
      padding:52px 58px;border-radius:var(--radius-lg);background:#0f4c91;color:#fff;position:relative;
      overflow:hidden;display:grid;grid-template-columns:1fr auto;gap:35px;align-items:center;
    }
    .cta-box:after{content:"";position:absolute;width:290px;height:290px;border-radius:50%;right:-108px;top:-135px;border:42px solid rgba(116,215,230,.18)}
    .cta-box h2{position:relative;font-size:32px;line-height:1.36;margin:0 0 10px}
    .cta-box p{position:relative;margin:0;color:#d8eafd;max-width:700px}
    .cta-box .hero-actions{position:relative;margin:0}
    .cta-box .btn-secondary{border-color:rgba(255,255,255,.7);background:rgba(255,255,255,.1);color:#fff}
    .cta-box .btn-secondary:hover{background:#fff;color:var(--color-primary)}
    footer{background:#132b4a;color:#d0deed;padding:60px 0 26px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:36px;padding-bottom:42px}
    .footer-brand{font-size:21px;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px}
    .footer-brand .brand-mark{width:32px;height:32px;font-size:15px}
    .footer-desc{font-size:14px;line-height:1.8;color:#aebfd2;margin:15px 0 0;max-width:310px}
    .footer-title{font-weight:800;color:#fff;font-size:15px;margin:3px 0 14px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{font-size:14px;color:#b7c8da;transition:.2s}
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .footer-bottom{padding-top:23px;border-top:1px solid rgba(206,225,244,.16);display:flex;justify-content:space-between;gap:18px;align-items:center;flex-wrap:wrap;font-size:13px;color:#aebfd2}
    .footer-bottom a{color:#cfe7ff}
    .footer-bottom a:hover{color:#fff;text-decoration:underline}
    .footer-record{font-size:13px;color:#9db3ca;margin-top:13px}
    @media(max-width:1100px){
      .nav-links a{padding:8px 7px;font-size:13px}
      .nav-cta{padding:9px 12px!important}
      .people-grid{grid-template-columns:1fr 1fr}
      .person-main{grid-column:span 2}
    }
    @media(max-width:900px){
      .menu-toggle{display:grid;place-items:center}
      .nav-links{
        display:none;position:absolute;top:76px;left:0;right:0;padding:14px 24px 20px;background:#fff;
        border-bottom:1px solid var(--color-border);box-shadow:0 16px 24px rgba(19,62,108,.1);align-items:stretch;
      }
      .nav-links.open{display:flex;flex-direction:column}
      .nav-links a{padding:11px 12px;font-size:15px}
      .nav-cta{margin:8px 0 0!important}
      .page-hero h1{font-size:43px}
      .task-grid,.detail-layout,.faq-layout{grid-template-columns:1fr}
      .journey{grid-template-columns:1fr;gap:30px}
      .journey-intro{position:static}
      .case-panel{grid-template-columns:1fr}
      .resource-grid{grid-template-columns:1fr 1fr}
      .notice-grid{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-grid>div:first-child{grid-column:span 3}
    }
    @media(max-width:640px){
      .container{width:min(calc(100% - 32px),var(--container-width))}
      .nav-wrap{height:68px}
      .nav-links{top:68px;padding-left:16px;padding-right:16px}
      .brand{font-size:18px}
      .page-hero{min-height:auto}
      .hero-inner{padding:48px 0 58px}
      .page-hero h1{font-size:34px;line-height:1.32}
      .page-hero p{font-size:16px}
      .hero-points{grid-template-columns:1fr;gap:8px;margin:24px 0}
      section{padding:58px 0}
      .section-head{display:block;margin-bottom:27px}
      .section-title{font-size:27px}
      .section-head .lead{margin-top:10px}
      .task-feature{min-height:340px;padding:28px 23px}
      .task-feature h3{font-size:25px}
      .task-item{grid-template-columns:39px 1fr 18px;padding:16px}
      .journey-step{gap:14px}
      .people-grid,.resource-grid,.notice-grid{grid-template-columns:1fr}
      .person-main{grid-column:auto;min-height:330px}
      .detail-image img{height:300px}
      .image-note{position:relative;right:auto;bottom:auto;margin:-22px 16px 0}
      .case-side{padding:28px 23px}
      .case-list{padding:10px 22px}
      .cta-band{padding-bottom:58px}
      .cta-box{padding:35px 25px;grid-template-columns:1fr}
      .cta-box h2{font-size:27px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:first-child{grid-column:span 2}
      .footer-bottom{align-items:flex-start;flex-direction:column}
    }

/* roulang page: category5 */
:root{
      --color-primary:#1769c2;--color-primary-dark:#0b4d99;--color-accent:#0b9caf;
      --color-ink:#172b4d;--color-muted:#60718a;--color-surface:#fff;--color-surface-soft:#f3f8fd;
      --color-border:#dce7f2;--shadow-card:0 10px 30px rgba(19,62,108,.09);--shadow-hover:0 18px 40px rgba(19,62,108,.16);
      --radius-sm:8px;--radius-md:14px;--radius-lg:20px;--container-width:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fff;color:var(--color-ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.76}
    a{color:inherit;text-decoration:none} img{max-width:100%;display:block}
    button,input,textarea{font:inherit} button{cursor:pointer;border:0}
    .container{width:min(calc(100% - 48px),var(--container-width));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(220,231,242,.9);box-shadow:0 4px 18px rgba(20,61,102,.04);backdrop-filter:blur(10px)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--color-ink);white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--color-primary);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 7px 15px rgba(23,105,194,.24)}
    .nav-links{display:flex;align-items:center;gap:3px}
    .nav-links a{padding:9px 10px;border-radius:8px;font-size:14px;color:#435774;transition:.2s ease}
    .nav-links a:hover{color:var(--color-primary);background:#eef6ff;transform:translateY(-1px)}
    .nav-links a.active{color:var(--color-primary);font-weight:700;background:#eaf4ff}
    .nav-cta{margin-left:8px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:9px;font-size:15px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
    .btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible,.menu-toggle:focus-visible{outline:3px solid #8cc8ff;outline-offset:3px}
    .btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 17px rgba(23,105,194,.22)}
    .btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(23,105,194,.28)}
    .btn-secondary{background:#fff;color:var(--color-primary);border:1px solid #aacfee}
    .btn-secondary:hover{background:#eef6ff;transform:translateY(-2px)}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);border-radius:9px;background:#fff;color:var(--color-primary);font-size:22px}
    section{padding:82px 0}.soft{background:var(--color-surface-soft)}
    .eyebrow{display:inline-block;color:var(--color-primary);font-size:13px;font-weight:800;letter-spacing:.08em}
    .section-title{font-size:34px;line-height:1.35;margin:9px 0 13px;font-weight:800;color:var(--color-ink)}
    .lead{margin:0;color:var(--color-muted);max-width:760px;font-size:16px}
    .section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:34px}
    .crumb{padding:22px 0 0;font-size:14px;color:var(--color-muted)}.crumb a{color:var(--color-primary)}.crumb span{padding:0 8px;color:#9baabd}
    .guide-hero{padding:48px 0 72px;background:#f7fbff url('/assets/images/backpic/back-2.webp') right center/auto 100% no-repeat;position:relative;overflow:hidden}
    .guide-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#f7fbff 0%,rgba(247,251,255,.94) 48%,rgba(247,251,255,.42) 100%)}
    .guide-hero .container{position:relative}.guide-hero h1{max-width:780px;font-size:50px;line-height:1.25;margin:18px 0;color:var(--color-ink);font-weight:850}
    .guide-hero p{max-width:720px;font-size:17px;color:#526986;margin:0}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .quick-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}.guide-panel{background:#123f78;color:#fff;border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-card)}
    .guide-panel h2{font-size:26px;line-height:1.4;margin:0 0 12px}.guide-panel p{margin:0;color:#d8eafa}.guide-panel ul{list-style:none;padding:0;margin:22px 0 0}.guide-panel li{padding:12px 0;border-top:1px solid rgba(255,255,255,.18);display:flex;justify-content:space-between;gap:10px}
    .guide-panel li b{color:#7ee3ed}.search-box{border:1px solid var(--color-border);background:#fff;border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;justify-content:center}
    .search-box label{font-weight:800;font-size:19px}.search-box p{color:var(--color-muted);font-size:14px}.search-row{display:flex;gap:10px}.search-row input{min-width:0;flex:1;height:46px;border:1px solid #b9cee1;border-radius:8px;padding:0 13px;color:var(--color-ink)}.search-row input::placeholder{color:#8b9bae}
    .topic-layout{display:grid;grid-template-columns:300px 1fr;gap:38px}.side-nav{border-top:1px solid var(--color-border)}.side-nav a{display:block;padding:14px 8px;border-bottom:1px solid var(--color-border);font-weight:700;color:#4d607b;transition:.2s}.side-nav a:hover{padding-left:14px;color:var(--color-primary);background:#f5faff}
    .article-list{border-top:1px solid var(--color-border)}.article{display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;padding:23px 0;border-bottom:1px solid var(--color-border)}.article .time{font-size:13px;color:var(--color-muted)}.article h3{font-size:19px;margin:0 0 5px}.article p{font-size:14px;color:var(--color-muted);margin:0}.read-link{color:var(--color-primary);font-weight:800;white-space:nowrap}
    .featured{display:grid;grid-template-columns:5fr 7fr;gap:34px;align-items:center}.featured figure{height:350px;margin:0;overflow:hidden;border-radius:var(--radius-lg);background:#dce9f5}.featured img{width:100%;height:100%;object-fit:cover}.tag{display:inline-block;padding:4px 9px;border-radius:6px;background:#e6f5f6;color:#087485;font-size:12px;font-weight:800}.featured h2{font-size:30px;line-height:1.45;margin:14px 0}.featured p{color:var(--color-muted)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.step{padding:25px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:#fff;box-shadow:0 6px 18px rgba(19,62,108,.05);transition:.2s}.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.step b{display:block;color:var(--color-accent);font-size:13px}.step h3{font-size:18px;margin:13px 0 8px}.step p{margin:0;color:var(--color-muted);font-size:14px}
    .note-grid{display:grid;grid-template-columns:7fr 5fr;gap:45px;align-items:start}.prose h2{font-size:30px;margin-top:0}.prose p{color:#4d607b;margin:0 0 17px}.check-list{list-style:none;padding:0;margin:20px 0}.check-list li{padding:11px 0 11px 29px;border-bottom:1px solid var(--color-border);position:relative}.check-list li:before{content:"✓";position:absolute;left:2px;color:var(--color-accent);font-weight:900}
    .info-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:28px}.info-card h3{margin-top:0;font-size:22px}.info-card dl{margin:0}.info-card div{padding:13px 0;border-bottom:1px solid var(--color-border)}.info-card dt{font-weight:800}.info-card dd{margin:4px 0 0;color:var(--color-muted);font-size:14px}
    .faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:50px}.faq-wrap .lead{max-width:360px}details{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-sm);margin-bottom:12px;padding:0 19px;transition:.2s}details[open]{border-color:#94c4ed;box-shadow:0 8px 22px rgba(19,62,108,.07)}summary{padding:17px 26px 17px 0;cursor:pointer;font-weight:800;list-style:none;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:0;font-size:23px;line-height:1;color:var(--color-primary)}details[open] summary:after{content:"−"}details p{margin:0 0 18px;color:var(--color-muted);font-size:15px}
    .cta{padding:0 0 82px}.cta-box{padding:46px 52px;border-radius:var(--radius-lg);background:#0f4f94;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;box-shadow:var(--shadow-card)}.cta-box h2{margin:0 0 8px;font-size:31px}.cta-box p{margin:0;color:#d8ebff;max-width:690px}.cta-box .btn{flex:none}
    footer{background:#102c50;color:#d3e2f1;padding:58px 0 26px}footer .brand{color:#fff}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:36px}.footer-text{font-size:14px;color:#a9c0d8;margin-top:14px}.footer-title{font-weight:800;color:#fff;margin:0 0 13px}.footer-links{display:grid;gap:8px}.footer-links a{font-size:14px;color:#b8cde1}.footer-links a:hover{color:#fff}.footer-bottom{padding-top:21px;border-top:1px solid rgba(255,255,255,.16);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#a9c0d8}.footer-bottom a{color:#d5eaff}.footer-bottom a:hover{color:#fff}
    @media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:13px}.nav-cta{display:none}.guide-hero h1{font-size:43px}.steps{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container-width))}.nav-wrap{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:0;right:0;top:68px;background:#fff;padding:13px 16px 18px;box-shadow:0 14px 25px rgba(19,62,108,.14);border-bottom:1px solid var(--color-border);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{font-size:15px;padding:12px}.guide-hero{padding:35px 0 58px;background-position:75% center}.guide-hero h1{font-size:37px}.section-title{font-size:29px}.quick-grid,.topic-layout,.featured,.note-grid,.faq-wrap{grid-template-columns:1fr;gap:27px}.article{grid-template-columns:80px 1fr}.article .read-link{grid-column:2}.featured figure{height:260px}.cta-box{padding:34px 28px;display:block}.cta-box .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}}
    @media(max-width:520px){section{padding:58px 0}.guide-hero h1{font-size:31px}.guide-hero p{font-size:15px}.hero-actions,.search-row{flex-direction:column}.hero-actions .btn,.search-row .btn{width:100%}.steps{grid-template-columns:1fr}.article{grid-template-columns:1fr;gap:7px}.article .read-link{grid-column:auto;margin-top:5px}.guide-panel,.search-box{padding:24px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom div+div{margin-top:8px}}

/* roulang page: category4 */
:root{
      --color-primary:#1769c2;--color-primary-dark:#0b4d99;--color-accent:#0b9caf;
      --color-ink:#172b4d;--color-muted:#60718a;--color-surface:#fff;--color-surface-soft:#f3f8fd;
      --color-border:#dce7f2;--shadow-card:0 10px 30px rgba(19,62,108,.09);--shadow-hover:0 18px 40px rgba(19,62,108,.16);
      --radius-sm:8px;--radius-md:14px;--radius-lg:20px;--container-width:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fff;color:var(--color-ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.76}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:#cce8ff;color:#103965}
    .container{width:min(calc(100% - 48px),var(--container-width));margin:auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(220,231,242,.9);box-shadow:0 4px 18px rgba(20,61,102,.04);backdrop-filter:blur(10px)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--color-ink);white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--color-primary);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 7px 15px rgba(23,105,194,.24)}
    .nav-links{display:flex;align-items:center;gap:3px}
    .nav-links a{padding:9px 10px;border-radius:8px;font-size:14px;color:#435774;transition:.2s ease}
    .nav-links a:hover{color:var(--color-primary);background:#eef6ff;transform:translateY(-1px)}
    .nav-links a.active{color:var(--color-primary);font-weight:700;background:#eaf4ff}
    .nav-cta{margin-left:8px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:9px;font-size:15px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
    .btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible,.menu-toggle:focus-visible{outline:3px solid #8cc8ff;outline-offset:3px}
    .btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 17px rgba(23,105,194,.22)}
    .btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(23,105,194,.28)}
    .btn-primary:active{transform:translateY(0)}
    .btn-secondary{background:#fff;color:var(--color-primary);border:1px solid #aacfee}
    .btn-secondary:hover{background:#eef6ff;transform:translateY(-2px)}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);border-radius:9px;background:#fff;color:var(--color-primary);font-size:23px}
    .breadcrumb{padding:22px 0 0;font-size:14px;color:var(--color-muted)}
    .breadcrumb a{color:var(--color-primary);font-weight:700}
    .breadcrumb span{padding:0 8px;color:#9aaabe}
    .case-hero{position:relative;overflow:hidden;background:#0f559d;color:#fff;min-height:470px}
    .case-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,48,92,.94),rgba(11,74,139,.76),rgba(9,74,136,.38)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat}
    .case-hero:after{content:"";position:absolute;right:8%;top:54px;width:250px;height:250px;border:28px solid rgba(255,255,255,.13);border-radius:50%}
    .case-hero .container{position:relative;z-index:1}
    .hero-content{padding:52px 0 76px;max-width:780px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#bce9ff;font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:28px;height:2px;background:#73d7e7}
    h1{font-size:50px;line-height:1.25;margin:18px 0;color:#fff;font-weight:850}
    .hero-content p{font-size:18px;line-height:1.95;color:#e1f0ff;margin:0;max-width:720px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .hero-actions .btn-secondary{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);color:#fff}
    .hero-actions .btn-secondary:hover{background:#fff;color:var(--color-primary)}
    .hero-meta{display:flex;gap:28px;flex-wrap:wrap;margin-top:34px}
    .hero-meta div{border-left:2px solid #74d7e6;padding-left:13px}
    .hero-meta strong{display:block;font-size:19px;line-height:1.3}
    .hero-meta span{font-size:13px;color:#d3e9fc}
    section{padding:82px 0}
    .soft-section{background:var(--color-surface-soft)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
    .section-title{font-size:34px;line-height:1.35;margin:8px 0 10px;font-weight:800;color:var(--color-ink)}
    .lead{margin:0;color:var(--color-muted);font-size:16px;max-width:760px}
    .label{display:inline-flex;align-items:center;padding:4px 10px;border-radius:99px;background:#e6f7f8;color:#087989;font-size:12px;font-weight:800}
    .case-index{display:grid;grid-template-columns:1.08fr .92fr;gap:26px;align-items:stretch}
    .featured-case{position:relative;min-height:440px;overflow:hidden;border-radius:var(--radius-lg);background:#123f78;color:#fff}
    .featured-case img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.54}
    .featured-case:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,39,77,.96),rgba(9,58,108,.18))}
    .featured-inner{position:absolute;z-index:1;inset:auto 38px 35px}
    .featured-inner h3{font-size:28px;line-height:1.4;margin:14px 0 10px}
    .featured-inner p{margin:0;color:#dceeff}
    .case-stack{display:grid;gap:14px}
    .mini-case{display:grid;grid-template-columns:50px 1fr auto;gap:15px;align-items:center;padding:21px 20px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:0 6px 18px rgba(19,62,108,.05);transition:.2s}
    .mini-case:hover{transform:translateX(4px);border-color:#9bc6ef;box-shadow:var(--shadow-card)}
    .mini-number{width:42px;height:42px;border-radius:10px;background:#eaf4ff;color:var(--color-primary);display:grid;place-items:center;font-weight:850}
    .mini-case h3{margin:0;font-size:17px;line-height:1.45}
    .mini-case p{margin:3px 0 0;color:var(--color-muted);font-size:14px;line-height:1.6}
    .arrow{font-size:22px;color:var(--color-primary)}
    .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow-card)}
    .process-item{padding:27px 24px;border-right:1px solid var(--color-border);min-height:220px}
    .process-item:last-child{border-right:0}
    .process-no{display:block;color:var(--color-accent);font-weight:850;font-size:14px}
    .process-item h3{font-size:19px;margin:14px 0 8px}
    .process-item p{color:var(--color-muted);font-size:14px;margin:0}
    .evidence-layout{display:grid;grid-template-columns:5fr 7fr;gap:50px;align-items:center}
    .image-frame{overflow:hidden;border-radius:var(--radius-lg);background:#d9e9f6;box-shadow:var(--shadow-card)}
    .image-frame img{width:100%;height:435px;object-fit:cover}
    .evidence-copy h2{font-size:34px;line-height:1.38;margin:0 0 16px}
    .evidence-copy p{color:var(--color-muted);margin:0 0 16px}
    .check-list{list-style:none;padding:0;margin:22px 0 0}
    .check-list li{position:relative;padding:12px 0 12px 29px;border-bottom:1px solid var(--color-border);font-size:15px}
    .check-list li:before{content:"✓";position:absolute;left:0;top:12px;width:19px;height:19px;line-height:19px;text-align:center;border-radius:50%;background:#dff5f6;color:#087e8b;font-size:12px;font-weight:900}
    .result-strip{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:20px;align-items:center;padding:31px 34px;background:#0f4d91;border-radius:var(--radius-lg);color:#fff}
    .result-strip h2{font-size:25px;line-height:1.4;margin:0}
    .result-strip p{margin:6px 0 0;color:#cfe7ff;font-size:14px}
    .result-stat{border-left:1px solid rgba(255,255,255,.25);padding-left:21px}
    .result-stat b{display:block;color:#8fe3ed;font-size:24px}
    .result-stat span{font-size:13px;color:#d5e8fa}
    .case-detail{display:grid;grid-template-columns:280px 1fr;gap:38px;border-top:1px solid var(--color-border);padding-top:8px}
    .case-nav{padding-top:20px}
    .case-nav h2{font-size:24px;line-height:1.45;margin:0 0 14px}
    .case-nav p{font-size:14px;color:var(--color-muted);margin:0}
    .case-article{display:grid;gap:0}
    .article-row{display:grid;grid-template-columns:145px 1fr auto;gap:23px;align-items:start;padding:27px 0;border-bottom:1px solid var(--color-border)}
    .article-row time{font-size:14px;color:var(--color-primary);font-weight:800}
    .article-row h3{font-size:20px;line-height:1.45;margin:0 0 8px}
    .article-row p{font-size:15px;color:var(--color-muted);margin:0}
    .text-link{color:var(--color-primary);font-size:14px;font-weight:800;white-space:nowrap}
    .text-link:hover{color:var(--color-primary-dark);text-decoration:underline}
    .insight-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:stretch}
    .insight-panel{padding:38px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}
    .insight-panel h2{font-size:29px;line-height:1.42;margin:0 0 15px}
    .insight-panel p{color:var(--color-muted);margin:0 0 14px}
    .quote-panel{padding:38px;background:#e7f4ff;border-radius:var(--radius-lg);border-left:5px solid var(--color-primary)}
    .quote-panel blockquote{font-size:20px;line-height:1.8;font-weight:700;margin:0;color:#19416d}
    .quote-panel cite{display:block;margin-top:20px;font-style:normal;color:var(--color-muted);font-size:14px}
    .faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px}
    .faq-intro h2{font-size:32px;line-height:1.4;margin:8px 0 12px}
    .faq-intro p{color:var(--color-muted);margin:0}
    details{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:12px;transition:.2s}
    details[open]{border-color:#9bc6ef;box-shadow:0 8px 22px rgba(19,62,108,.07)}
    summary{list-style:none;position:relative;padding:19px 52px 19px 21px;font-weight:800;cursor:pointer}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:20px;top:15px;color:var(--color-primary);font-size:25px;font-weight:400}
    details[open] summary:after{content:"−"}
    .faq-answer{padding:0 21px 20px;color:var(--color-muted);font-size:15px}
    .consult{background:#103f76;color:#fff}
    .consult-grid{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
    .consult h2{font-size:34px;line-height:1.35;margin:0 0 10px}
    .consult p{margin:0;color:#d5eaff;max-width:700px}
    .consult .btn-light{min-width:142px}
    footer{background:#102c50;color:#d5e4f4;padding:60px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:40px;padding-bottom:38px;border-bottom:1px solid rgba(214,232,249,.18)}
    .footer-brand{color:#fff;font-size:20px;font-weight:850;display:flex;align-items:center;gap:10px}
    .footer-copy{font-size:14px;color:#aec5dc;max-width:360px;margin:14px 0 0}
    .footer-col h3{font-size:15px;color:#fff;margin:0 0 14px}
    .footer-col a{display:block;font-size:14px;color:#b9cee2;padding:4px 0;transition:.2s}
    .footer-col a:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:22px;font-size:13px;color:#9fb8d1}
    .footer-bottom a:hover{color:#fff;text-decoration:underline}
    @media(max-width:1024px){
      .nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:13px}.nav-cta{margin-left:3px}
      .process-grid{grid-template-columns:repeat(2,1fr)}.process-item:nth-child(2){border-right:0}.process-item:nth-child(-n+2){border-bottom:1px solid var(--color-border)}
      .case-detail,.faq-wrap{grid-template-columns:1fr;gap:24px}.case-nav{padding-top:0}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container-width))}
      .menu-toggle{display:grid;place-items:center}.nav-links{display:none;position:absolute;top:76px;left:0;right:0;padding:16px;background:#fff;border-bottom:1px solid var(--color-border);box-shadow:0 14px 28px rgba(19,62,108,.12);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px;font-size:15px}.nav-cta{margin:6px 0 0;text-align:center}
      h1{font-size:38px}.hero-content{padding:40px 0 60px}.hero-content p{font-size:16px}.case-hero{min-height:440px}
      section{padding:60px 0}.section-title,.evidence-copy h2,.faq-intro h2,.consult h2{font-size:28px}.section-head{display:block;margin-bottom:26px}.section-head .btn{margin-top:17px}
      .case-index,.evidence-layout,.insight-grid{grid-template-columns:1fr;gap:22px}.featured-case{min-height:390px}.image-frame img{height:310px}
      .result-strip{grid-template-columns:1fr 1fr}.result-strip h2{grid-column:1/-1}.result-stat{padding-left:14px}.article-row{grid-template-columns:1fr;gap:8px}.article-row .text-link{margin-top:4px}
      .consult-grid{grid-template-columns:1fr;align-items:start}.consult .btn-light{width:max-content}.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:520px){
      .nav-wrap{height:68px}.nav-links{top:68px}.brand{font-size:18px}.brand-mark{width:32px;height:32px}
      .breadcrumb{font-size:13px}.case-hero:after{display:none}h1{font-size:32px}.hero-actions,.hero-actions .btn{width:100%}.hero-meta{gap:15px}.hero-meta div{width:calc(50% - 8px)}
      .section-title,.evidence-copy h2,.faq-intro h2,.consult h2{font-size:25px}.process-grid,.result-strip{grid-template-columns:1fr}.process-item,.process-item:nth-child(2){border-right:0;border-bottom:1px solid var(--color-border)}.process-item:last-child{border-bottom:0}
      .featured-inner{inset:auto 22px 24px}.featured-inner h3{font-size:23px}.mini-case{grid-template-columns:43px 1fr}.mini-case .arrow{display:none}.result-stat{border-left:0;border-top:1px solid rgba(255,255,255,.25);padding:14px 0 0}
      .insight-panel,.quote-panel{padding:27px 23px}.quote-panel blockquote{font-size:18px}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{display:block}.footer-bottom div+div{margin-top:8px}
    }

/* roulang page: category6 */
:root{
      --color-primary:#1769c2;--color-primary-dark:#0b4d99;--color-accent:#0b9caf;
      --color-ink:#172b4d;--color-muted:#60718a;--color-surface:#fff;--color-surface-soft:#f3f8fd;
      --color-border:#dce7f2;--shadow-card:0 10px 30px rgba(19,62,108,.09);--shadow-hover:0 18px 40px rgba(19,62,108,.16);
      --radius-sm:8px;--radius-md:14px;--radius-lg:20px;--container-width:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fff;color:var(--color-ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.76}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%}
    button,input,textarea,select{font:inherit} button{cursor:pointer;border:0}
    ::selection{background:#cce6ff;color:#123a69}
    .container{width:min(var(--container-width),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(220,231,242,.9);box-shadow:0 4px 18px rgba(20,61,102,.04);backdrop-filter:blur(10px)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--color-ink);white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--color-primary);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 7px 15px rgba(23,105,194,.24)}
    .nav-links{display:flex;align-items:center;gap:3px}
    .nav-links a{padding:9px 10px;border-radius:8px;font-size:14px;color:#435774;transition:.2s ease}
    .nav-links a:hover{color:var(--color-primary);background:#eef6ff;transform:translateY(-1px)}
    .nav-links a.active{color:var(--color-primary);font-weight:700;background:#eaf4ff}
    .nav-cta{margin-left:8px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 18px;border-radius:9px;font-size:15px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
    .btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible,.menu-toggle:focus-visible{outline:3px solid #8cc8ff;outline-offset:3px}
    .btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 8px 17px rgba(23,105,194,.22)}
    .btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(23,105,194,.28)}
    .btn-primary:active,.btn-secondary:active{transform:translateY(0)}
    .btn-secondary{background:#fff;color:var(--color-primary);border:1px solid #aacfee}.btn-secondary:hover{background:#eef6ff;transform:translateY(-2px)}
    .btn-light{background:#fff;color:#104f96}.btn-light:hover{background:#e9f4ff;transform:translateY(-2px)}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);border-radius:9px;background:#fff;color:var(--color-primary);font-size:22px}
    section{padding:82px 0}.eyebrow{display:inline-block;color:var(--color-primary);font-size:13px;font-weight:800;letter-spacing:.08em}
    .section-title{margin:8px 0 12px;font-size:34px;line-height:1.36;font-weight:800;color:var(--color-ink)}
    .lead{max-width:780px;margin:0;color:var(--color-muted);font-size:16px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
    .breadcrumb{padding:19px 0 14px;font-size:13px;color:var(--color-muted)}.breadcrumb a{color:var(--color-primary)}.breadcrumb span{padding:0 8px;color:#9aabc0}
    .inner-hero{position:relative;overflow:hidden;min-height:470px;background:#104f91 url('/assets/images/backpic/back-3.webp') center/cover no-repeat;color:#fff}
    .inner-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,52,96,.95),rgba(11,73,135,.79) 52%,rgba(10,66,125,.34))}
    .inner-hero .container{position:relative;z-index:1}.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:50px;align-items:center;padding:53px 0 66px}
    .hero-copy h1{margin:13px 0 18px;font-size:50px;line-height:1.24;font-weight:850}.hero-copy p{max-width:700px;margin:0;color:#e3f1ff;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.inner-hero .btn-secondary{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.68)}.inner-hero .btn-secondary:hover{background:#fff;color:var(--color-primary)}
    .progress-panel{padding:25px;background:rgba(255,255,255,.97);border-radius:var(--radius-lg);box-shadow:0 18px 42px rgba(5,33,70,.2);color:var(--color-ink)}
    .progress-panel h2{margin:0 0 6px;font-size:21px;line-height:1.4}.progress-panel p{margin:0;color:var(--color-muted);font-size:14px}
    .progress-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:22px 0 8px;font-size:13px;font-weight:700}.progress-top strong{color:var(--color-primary);font-size:16px}
    .progress-track{height:10px;overflow:hidden;border-radius:99px;background:#dfeefb}.progress-bar{width:72%;height:100%;border-radius:inherit;background:var(--color-accent)}
    .progress-list{display:grid;gap:12px;margin:21px 0 24px}.progress-list div{display:flex;gap:10px;align-items:center;font-size:14px;color:#415875}.progress-list b{display:grid;place-items:center;flex:none;width:22px;height:22px;border-radius:50%;background:#e4f6f8;color:#087e91;font-size:12px}
    .notice-strip{padding:20px 0;background:#eaf6ff;border-bottom:1px solid #d7eaf8}.notice-grid{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:16px}.notice-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#d3eff4;color:#087b8b;font-size:20px}.notice-grid p{margin:0;color:#49617e;font-size:14px}.notice-grid strong{display:block;color:var(--color-ink);font-size:15px}
    .choice-grid{display:grid;grid-template-columns:4fr 8fr;gap:32px}.choice-intro{padding:30px;border-radius:var(--radius-lg);background:var(--color-surface-soft);border:1px solid var(--color-border)}.choice-intro h3{margin:6px 0 13px;font-size:25px;line-height:1.43}.choice-intro p{color:var(--color-muted);font-size:15px}
    .service-list{border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card)}.service-row{display:grid;grid-template-columns:70px 1fr auto;align-items:center;gap:18px;padding:23px 26px;background:#fff;border-bottom:1px solid var(--color-border);transition:.2s}.service-row:last-child{border-bottom:0}.service-row:hover{background:#f7fbff}.service-num{font-size:24px;font-weight:800;color:#9cc7ee}.service-row h3{margin:0;font-size:18px}.service-row p{margin:4px 0 0;color:var(--color-muted);font-size:14px}.text-link{color:var(--color-primary);font-weight:700;font-size:14px;white-space:nowrap}.text-link:hover{color:var(--color-primary-dark)}
    .soft-bg{background:var(--color-surface-soft)}.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.plan-card{position:relative;display:flex;flex-direction:column;padding:29px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);transition:.22s}.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.plan-card.featured{border:2px solid var(--color-primary);padding:28px}.plan-badge{position:absolute;top:-14px;left:25px;padding:4px 11px;border-radius:20px;background:var(--color-primary);color:#fff;font-size:12px;font-weight:700}.plan-card h3{margin:0 0 8px;font-size:23px}.plan-card>p{min-height:76px;margin:0;color:var(--color-muted);font-size:14px}.plan-card ul{padding:0;margin:22px 0;list-style:none}.plan-card li{position:relative;padding:8px 0 8px 23px;border-bottom:1px dashed #dbe6f0;font-size:14px}.plan-card li:before{content:"✓";position:absolute;left:0;color:var(--color-accent);font-weight:900}.plan-card .btn{margin-top:auto}
    .editorial-grid{display:grid;grid-template-columns:6fr 6fr;gap:46px;align-items:center}.photo-frame{overflow:hidden;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);background:#d8e5f0}.photo-frame img{width:100%;height:420px;object-fit:cover}.article-copy h2{margin:8px 0 16px;font-size:32px;line-height:1.4}.article-copy p{color:var(--color-muted);font-size:16px}.bullet-columns{display:grid;grid-template-columns:1fr 1fr;gap:10px 25px;margin-top:23px}.bullet-columns div{padding:10px 0;border-bottom:1px solid var(--color-border);font-size:14px}.bullet-columns b{color:var(--color-primary);margin-right:8px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{position:relative;padding:25px 22px 22px;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:0 6px 18px rgba(19,62,108,.05)}.step-no{display:block;margin-bottom:20px;color:var(--color-accent);font-size:13px;font-weight:900;letter-spacing:.1em}.step h3{margin:0 0 8px;font-size:18px}.step p{margin:0;color:var(--color-muted);font-size:14px}
    .support-grid{display:grid;grid-template-columns:5fr 7fr;gap:34px}.support-side{padding:32px;border-radius:var(--radius-lg);background:#123f78;color:#fff}.support-side h2{margin:8px 0 14px;font-size:30px;line-height:1.4}.support-side p{color:#d8eafc}.support-side a{margin-top:12px}.support-list{display:grid;gap:0;border-top:1px solid var(--color-border)}.support-item{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:19px 0;border-bottom:1px solid var(--color-border)}.support-item b{color:var(--color-primary);font-size:14px}.support-item p{margin:0;color:var(--color-muted);font-size:14px}
    .faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:50px}.faq-side p{color:var(--color-muted)}details{border-bottom:1px solid var(--color-border);background:#fff}summary{position:relative;padding:19px 42px 19px 0;list-style:none;color:var(--color-ink);font-size:17px;font-weight:700;cursor:pointer}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:5px;top:14px;color:var(--color-primary);font-size:25px;font-weight:400;transition:.2s}details[open] summary{color:var(--color-primary)}details[open] summary:after{content:"−";transform:rotate(180deg)}.faq-answer{padding:0 22px 20px 0;color:var(--color-muted);font-size:15px}
    .consult-section{padding:0 0 84px}.consult-box{display:grid;grid-template-columns:5fr 7fr;overflow:hidden;border-radius:var(--radius-lg);background:#103e75;box-shadow:var(--shadow-hover)}.consult-copy{padding:42px;color:#fff;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;position:relative}.consult-copy:before{content:"";position:absolute;inset:0;background:rgba(10,54,102,.82)}.consult-copy>*{position:relative}.consult-copy h2{margin:8px 0 14px;font-size:32px;line-height:1.36}.consult-copy p{color:#dceefe}.consult-copy ul{list-style:none;padding:0;margin:24px 0 0}.consult-copy li{padding:7px 0;font-size:14px}.consult-copy li:before{content:"✓";margin-right:9px;color:#76dce7;font-weight:900}.consult-form{padding:32px;background:#fff}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}.field label{font-size:14px;font-weight:700;color:#334d70}.field input,.field textarea,.field select{width:100%;border:1px solid #cbddeb;border-radius:8px;background:#fbfdff;color:var(--color-ink);padding:11px 12px;outline:none;transition:.2s}.field textarea{min-height:104px;resize:vertical}.field input::placeholder,.field textarea::placeholder{color:#9aabc0}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(23,105,194,.13)}.form-check{display:flex;align-items:flex-start;gap:9px;margin:16px 0;color:var(--color-muted);font-size:13px}.form-check input{width:16px;height:16px;margin-top:4px;accent-color:var(--color-primary)}.form-status{display:none;margin-top:14px;padding:10px 12px;border-radius:8px;background:#e6f7f1;color:#0a7563;font-size:14px}
    footer{padding:58px 0 25px;background:#102c50;color:#cfdeee}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:42px;padding-bottom:37px}.footer-brand{color:#fff}.footer-brand .brand{color:#fff}.footer-brand p{max-width:390px;color:#b5c9df;font-size:14px}.footer-col h3{margin:4px 0 14px;color:#fff;font-size:15px}.footer-col a{display:block;padding:4px 0;color:#bfd0e1;font-size:14px;transition:.2s}.footer-col a:hover{color:#fff;transform:translateX(3px)}.footer-bottom{display:flex;justify-content:space-between;gap:18px;padding-top:21px;border-top:1px solid rgba(215,231,247,.18);color:#aabfd5;font-size:13px;flex-wrap:wrap}.footer-bottom a{color:#d9ebfb}.footer-bottom a:hover{color:#fff}
    @media(max-width:1024px){.nav-links a{padding:8px 7px;font-size:13px}.nav-cta{margin-left:3px}.hero-grid{gap:28px}.hero-copy h1{font-size:43px}.plan-grid{gap:14px}.support-grid,.faq-layout{gap:28px}}
    @media(max-width:768px){.container{width:min(100% - 32px,var(--container-width))}.nav-wrap{height:68px}.menu-toggle{display:grid;place-items:center}.nav-links{display:none;position:absolute;left:0;right:0;top:68px;padding:14px 16px 18px;background:#fff;border-bottom:1px solid var(--color-border);box-shadow:0 14px 24px rgba(19,62,108,.12);align-items:stretch;flex-direction:column}.nav-links.open{display:flex}.nav-links a{padding:11px 12px;font-size:15px}.nav-cta{margin:7px 0 0}.hero-grid,.choice-grid,.editorial-grid,.support-grid,.faq-layout,.consult-box{grid-template-columns:1fr}.inner-hero{min-height:auto}.hero-grid{padding:35px 0 47px}.hero-copy h1{font-size:38px}.progress-panel{max-width:560px}.section-head{display:block}.section-head .lead{margin-top:10px}section{padding:62px 0}.section-title{font-size:29px}.plan-grid{grid-template-columns:1fr}.plan-card>p{min-height:0}.steps{grid-template-columns:1fr 1fr}.photo-frame img{height:320px}.support-item{grid-template-columns:118px 1fr}.consult-section{padding-bottom:62px}.footer-grid{grid-template-columns:1.5fr 1fr;gap:26px}.footer-brand{grid-column:1/-1}}
    @media(max-width:520px){.brand{font-size:18px}.brand-mark{width:32px;height:32px}.breadcrumb{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hero-copy h1{font-size:32px}.hero-copy p{font-size:16px}.hero-actions .btn{width:100%}.section-title{font-size:27px}.service-row{grid-template-columns:44px 1fr;padding:20px 17px}.service-row .text-link{grid-column:2}.choice-intro{padding:24px}.steps{grid-template-columns:1fr}.bullet-columns,.form-grid{grid-template-columns:1fr}.photo-frame img{height:250px}.support-side{padding:26px}.support-item{grid-template-columns:1fr;gap:3px}.consult-copy,.consult-form{padding:25px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom div+div{margin-top:8px}}