/* roulang page: index */
:root{--primary:#2463df;--primary-dark:#1748aa;--ink:#172b4d;--muted:#697991;--bg:#f5f8fd;--surface:#fff;--line:#e2eaf5;--soft:#edf4ff;--mint:#168573;--radius:22px;--shadow:0 12px 36px rgba(28,65,125,.07);--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-size:15px;line-height:1.8}a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s,box-shadow .2s}button{font:inherit;cursor:pointer}img{display:block;width:100%;height:auto}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35}ul{padding:0;margin:0;list-style:none}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #7ba9ff;outline-offset:5px}a:active,.button:active{transform:translateY(1px)}.container{width:min(var(--max),calc(100% - 64px));margin-inline:auto}.site-header{padding:24px 0 0}.nav-panel{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.brand{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;white-space:nowrap}.brand-mark{width:39px;height:39px;display:grid;place-items:center;background:var(--primary);color:#fff;border-radius:12px;box-shadow:0 5px 12px #2463df26}.brand-mark svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8}.nav-links{display:flex;gap:8px;align-items:center}.nav-links a{padding:9px 20px;border-radius:11px;color:var(--muted);font-weight:600}.nav-links a:hover{color:var(--primary);background:var(--bg)}.nav-links a.active{background:var(--soft);color:var(--primary)}.nav-cta{color:var(--primary);font-size:13px;font-weight:700;border:1px solid #d6e4ff;padding:8px 15px;border-radius:10px}.nav-cta:hover{background:var(--soft)}main section{padding:76px 0;border-bottom:1px solid var(--line)}.hero{padding:66px 0 46px;background:radial-gradient(ellipse at 50% 20%,#e9f2ff 0,transparent 65%);text-align:center}.eyebrow{font-size:12px;font-weight:750;letter-spacing:2px;color:var(--primary);display:block;margin-bottom:15px}.hero h1{font-size:clamp(34px,4.6vw,58px);letter-spacing:-1.6px;font-weight:800}.hero h1 span{color:var(--primary)}.hero-copy{max-width:820px;margin:22px auto 0;color:var(--muted);font-size:16px;line-height:1.95}.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:12px 23px;border:1px solid transparent;border-radius:12px;background:var(--primary);color:#fff;font-weight:650;box-shadow:0 6px 16px #2463df20}.button:hover{background:var(--primary-dark);transform:translateY(-2px)}.button.secondary{background:white;border-color:var(--line);color:var(--ink);box-shadow:none}.button.secondary:hover{border-color:#aac6f7;color:var(--primary)}.icon-matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:850px;margin:38px auto 24px;text-align:left}.mini-card{display:flex;gap:12px;align-items:center;padding:17px;background:#ffffffde;border:1px solid var(--line);border-radius:16px;box-shadow:0 6px 20px #274e8705}.icon{width:42px;height:42px;flex-shrink:0;display:grid;place-items:center;background:var(--soft);color:var(--primary);border-radius:13px;font-size:22px;font-weight:700}.mini-card strong{display:block;font-size:14px}.mini-card small{color:var(--muted);font-size:11px}.status-bar{display:flex;justify-content:center;align-items:center;gap:10px;color:var(--muted);font-size:12px;flex-wrap:wrap}.status-dot{height:7px;width:7px;border-radius:50%;background:var(--mint)}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:48px;margin-bottom:32px}.section-head h2{font-size:30px;letter-spacing:-.5px}.section-head>p{max-width:590px;color:var(--muted);font-size:14px}.white{background:#fff}.kpi-section{padding:37px 0}.kpi-intro{display:flex;align-items:center;gap:25px;margin-bottom:23px}.kpi-intro h2{font-size:20px;flex-shrink:0}.kpi-intro p{font-size:13px;color:var(--muted)}.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.kpi{border-left:2px solid #dbe8ff;padding-left:24px}.kpi strong{font-size:32px;line-height:1.4;color:var(--primary);font-weight:750}.kpi strong span{font-size:14px;margin-left:7px}.kpi p{font-size:13px;color:var(--muted)}.grid{display:grid;gap:22px}.grid.four{grid-template-columns:repeat(4,1fr)}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-3px);box-shadow:0 16px 35px #244c8510}.card .icon{margin-bottom:22px}.card h3{font-size:18px;margin-bottom:12px}.card p{font-size:14px;color:var(--muted)}.tag{display:inline-block;border-radius:6px;background:var(--soft);color:var(--primary);padding:3px 9px;font-size:11px;font-weight:650}.card .tag{margin-top:20px}.text-link{display:inline-flex;align-items:center;gap:16px;font-size:14px;font-weight:650;color:var(--primary);margin-top:22px}.text-link:hover{color:var(--primary-dark);gap:22px}.compare-layout{display:grid;grid-template-columns:.85fr 1.6fr;gap:55px;align-items:start}.intro h2{font-size:30px;margin-bottom:18px}.intro>p{color:var(--muted);font-size:14px}.compare-list{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.compare-row{display:grid;grid-template-columns:100px 1fr 1fr;gap:18px;padding:20px 24px;border-bottom:1px solid var(--line);font-size:13px;align-items:center;background:#fff}.compare-row:last-child{border:0}.compare-row.heading{background:var(--soft);font-weight:700;color:var(--primary)}.compare-row span{color:var(--muted)}.compare-row strong{font-weight:600}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.timeline article{position:relative;border-top:2px solid #d5e3fc;padding:25px 0 0}.timeline article:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--primary);top:-6px;left:0;box-shadow:0 0 0 5px var(--bg)}.step{font-size:12px;color:var(--primary);font-weight:700;display:block;margin-bottom:12px}.timeline h3{font-size:18px;margin-bottom:10px}.timeline p{font-size:14px;color:var(--muted)}.note{margin-top:26px;font-size:12px;color:var(--muted);padding:12px 16px;border:1px dashed #d2deed;border-radius:10px}.story-band{background:#153367 url('/assets/images/869254e0a8d1f9d7.png') center/cover;position:relative;color:#fff}.story-band:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,33,71,.97),rgba(14,39,77,.84))}.story-band .container{position:relative;display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:70px}.story-band .eyebrow{color:#9cc7ff}.story-band h2{font-size:32px;margin-bottom:20px}.story-band p{color:#c5d5ed;font-size:15px}.quote-panel{padding:28px;border:1px solid #ffffff2b;border-radius:20px;background:#ffffff09}.quote-panel strong{font-size:21px;display:block;margin-bottom:14px}.data-points{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}.data-points span{font-size:12px;padding:5px 12px;background:#ffffff12;border:1px solid #ffffff1c;border-radius:8px}.news-card{padding:0;overflow:hidden}.cover{aspect-ratio:16/9;overflow:hidden;background:#eaf0f8;position:relative}.cover img{height:100%;object-fit:cover;transition:transform .4s}.news-card:hover .cover img{transform:scale(1.035)}.cover:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 60%,#132f5c20);pointer-events:none}.news-body{padding:25px}.news-body .tag{margin:0 0 15px}.news-body h3{font-size:19px}.news-list{display:flex;flex-direction:column;justify-content:space-between;padding:8px 0}.news-item{border-bottom:1px solid var(--line);padding:18px 0}.news-item:first-child{padding-top:0}.news-item:last-child{border:0}.news-item small{color:var(--primary);font-size:12px}.news-item h3{font-size:17px;margin:7px 0}.news-item p{font-size:13px;color:var(--muted)}.source-links{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.source-link{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px;border-radius:16px;background:var(--bg);border:1px solid var(--line)}.source-link strong{display:block;font-size:16px}.source-link small{display:block;color:var(--muted);margin-top:5px}.source-link>span{color:var(--primary)}.source-link:hover{background:var(--soft);border-color:#bdd3fb}.download-panel{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;align-items:start}.download-options{display:grid;gap:12px}.download-option{display:grid;grid-template-columns:44px 1fr;align-items:start;gap:18px;padding:20px;border:1px solid var(--line);border-radius:15px;background:#fff}.download-option h3{font-size:16px;margin:2px 0 6px}.download-option p{font-size:13px;color:var(--muted)}.callout{margin-top:25px;border-left:3px solid var(--primary);padding:13px 18px;background:#eaf2ff;color:#41618b;font-size:13px}.safety-row{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.safety-item{display:flex;gap:16px}.safety-item h3{font-size:17px;margin:4px 0 9px}.safety-item p{font-size:13px;color:var(--muted)}.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:64px}.faq-list{display:grid;gap:12px}details{background:white;border:1px solid var(--line);border-radius:14px;overflow:hidden}summary{padding:20px 23px;cursor:pointer;font-weight:650;list-style:none;display:flex;justify-content:space-between;gap:20px;font-size:15px}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--primary);font-size:21px;line-height:1.2}details[open] summary:after{content:"−"}details[open]{box-shadow:var(--shadow)}details p{padding:0 23px 23px;color:var(--muted);font-size:14px}summary:hover{color:var(--primary)}footer{padding:44px 0 24px;background:#edf2fa}.footer-top{display:flex;justify-content:space-between;gap:40px;margin-bottom:28px}.footer-description{max-width:520px;color:var(--muted);font-size:13px;margin-top:15px}.footer-links{display:flex;gap:22px;align-items:start;font-size:13px;color:var(--muted)}.footer-links a:hover{color:var(--primary)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted);padding-top:20px;border-top:1px solid #d9e3f0}
@media(min-width:1440px){.hero{padding-top:80px}}
@media(max-width:1024px){.grid.four{grid-template-columns:repeat(2,1fr)}.section-head{gap:25px}.section-head>p{max-width:50%}.grid.three{grid-template-columns:repeat(2,1fr)}.news-list{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.news-item{padding:0;border:0}.compare-layout{gap:30px;grid-template-columns:1fr 1.6fr}.story-band .container{gap:35px}.faq-layout{gap:30px}.nav-panel{gap:15px}.nav-links a{padding:9px 14px}}
@media(max-width:768px){.container{width:calc(100% - 40px)}.nav-panel{flex-wrap:wrap;gap:12px}.nav-links{order:3;width:100%;border-top:1px solid var(--line);padding-top:12px}.nav-links a{flex:1;text-align:center}.hero{padding-top:45px}.hero h1{letter-spacing:-1px}.hero-copy{font-size:14px}.icon-matrix{grid-template-columns:repeat(2,1fr);gap:10px}.section-head{display:block}.section-head>p{max-width:none;margin-top:18px}.section-head h2,.intro h2{font-size:26px}main section{padding:52px 0}.kpi-section{padding:30px 0}.kpi-intro{display:block}.kpi-intro p{margin-top:12px}.kpis{grid-template-columns:repeat(2,1fr);row-gap:23px}.compare-layout,.story-band .container,.download-panel,.faq-layout{grid-template-columns:1fr;gap:30px}.timeline{grid-template-columns:repeat(2,1fr);gap:35px 25px}.source-links{grid-template-columns:1fr}.safety-row{grid-template-columns:1fr;gap:25px}.footer-top{display:block}.footer-links{margin-top:25px}.footer-bottom{flex-direction:column;gap:8px}.story-band h2{font-size:27px}.news-list{grid-template-columns:1fr}.news-item{border-bottom:1px solid var(--line);padding-bottom:20px}}
@media(max-width:520px){.container{width:calc(100% - 28px)}.site-header{padding-top:14px}.nav-panel{padding:13px}.brand{font-size:17px}.brand-mark{width:33px;height:33px}.nav-cta{font-size:11px;padding:7px 10px}.hero h1{font-size:35px}.hero-copy{text-align:left}.mini-card{padding:12px;gap:9px}.mini-card .icon{width:33px;height:33px;font-size:18px}.mini-card small{font-size:10px}.mini-card strong{font-size:13px}.grid.four,.grid.three,.grid.two{grid-template-columns:1fr}.card{padding:23px}.news-card{padding:0}.news-list{grid-column:auto}.compare-row{grid-template-columns:63px 1fr 1fr;padding:15px 12px;gap:10px;font-size:12px}.kpi{padding-left:15px}.kpi strong{font-size:29px}.timeline{gap:30px 20px}.timeline p{font-size:13px}.actions .button{flex:1;padding:12px 14px;font-size:14px}.footer-links{gap:17px;flex-wrap:wrap}.status-bar{font-size:11px}.quote-panel{padding:23px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang page: category1 */
:root{--primary:#2463df;--primary-dark:#1748aa;--ink:#172b4d;--muted:#697991;--bg:#f5f8fd;--surface:#fff;--line:#e2eaf5;--soft:#edf4ff;--mint:#168573;--radius:22px;--shadow:0 12px 36px rgba(28,65,125,.07);--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-size:15px;line-height:1.8}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s,box-shadow .2s}
button{font:inherit;cursor:pointer}img{display:block;width:100%;height:auto}
a:focus-visible,button:focus-visible{outline:3px solid #7ba9ff;outline-offset:5px}
.container{width:min(var(--max),calc(100% - 64px));margin-inline:auto}
.site-header{padding:24px 0 0}.nav-panel{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
.brand{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;white-space:nowrap}.brand-mark{width:39px;height:39px;display:grid;place-items:center;background:var(--primary);color:#fff;border-radius:12px;box-shadow:0 5px 12px #2463df26}.brand-mark svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8}
.nav-links{display:flex;gap:8px;align-items:center}.nav-links a{padding:9px 20px;border-radius:11px;color:var(--muted);font-weight:600}.nav-links a:hover{color:var(--primary);background:var(--bg)}.nav-links a.active{background:var(--soft);color:var(--primary)}
.nav-cta{color:var(--primary);font-size:13px;font-weight:700;border:1px solid #d6e4ff;padding:8px 15px;border-radius:10px}.nav-cta:hover{background:var(--soft)}
main section{padding:76px 0;border-bottom:1px solid var(--line)}.hero{padding:76px 0 68px;background:radial-gradient(ellipse at 75% 15%,#e8f1ff 0,transparent 62%)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:62px;align-items:center}.eyebrow{font-size:12px;font-weight:750;letter-spacing:2px;color:var(--primary);display:block;margin-bottom:15px}.hero h1{font-size:clamp(34px,4.6vw,58px);letter-spacing:-1.6px;line-height:1.2;margin:0}.hero h1 span{color:var(--primary)}.hero-copy{margin:22px 0 0;color:var(--muted);font-size:16px;line-height:1.95}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:12px 23px;border:1px solid transparent;border-radius:12px;background:var(--primary);color:#fff;font-weight:650;box-shadow:0 6px 16px #2463df20}.button:hover{background:var(--primary-dark);transform:translateY(-2px)}.button.secondary{background:white;border-color:var(--line);color:var(--ink);box-shadow:none}.button.secondary:hover{border-color:#aac6f7;color:var(--primary)}
.hero-visual{position:relative;min-height:350px;border-radius:28px;overflow:hidden;box-shadow:0 20px 50px #234b8b1c;background:#17345f}.hero-visual img{height:350px;object-fit:cover;opacity:.83}.visual-panel{position:absolute;left:24px;right:24px;bottom:22px;padding:18px 20px;background:#ffffffed;border:1px solid #fff;border-radius:17px}.visual-panel strong{display:block;font-size:20px}.visual-panel small{color:var(--muted)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:48px;margin-bottom:32px}.section-head h2{font-size:30px;letter-spacing:-.5px;margin:0}.section-head p{max-width:590px;color:var(--muted);font-size:14px;margin:0}
.grid{display:grid;gap:22px}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-3px);box-shadow:0 16px 35px #244c8510}.card h3{font-size:18px;margin:0 0 12px}.card p{font-size:14px;color:var(--muted);margin:0}.tag{display:inline-block;border-radius:6px;background:var(--soft);color:var(--primary);padding:3px 9px;font-size:11px;font-weight:650;margin-bottom:15px}
.feature{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}.feature img{height:310px;object-fit:cover;border-radius:22px;box-shadow:var(--shadow)}.feature h2{font-size:31px;line-height:1.35;margin:0 0 16px}.feature p{color:var(--muted)}
.timeline{display:grid;gap:0;border-left:2px solid #cfe0fb;margin-left:10px}.timeline-item{position:relative;padding:0 0 28px 30px}.timeline-item:before{content:"";position:absolute;left:-8px;top:8px;width:14px;height:14px;background:var(--primary);border:3px solid var(--bg);border-radius:50%}.timeline-item strong{display:block;font-size:17px}.timeline-item span{color:var(--primary);font-size:12px}.timeline-item p{color:var(--muted);font-size:14px;margin:5px 0 0}
.scoreboard{background:#17345f;color:#fff;border-radius:24px;padding:30px;box-shadow:0 18px 45px #17345f26}.scoreboard .section-head{margin-bottom:18px}.scoreboard .section-head h2{color:#fff}.scoreboard .section-head p{color:#b7cae9}.match{display:grid;grid-template-columns:1fr 90px 1fr;align-items:center;gap:18px;padding:20px 0;border-top:1px solid #ffffff20}.team{text-align:center;font-weight:700}.team small{display:block;color:#a9c1e5;font-weight:400;font-size:12px}.result{text-align:center;color:#9cc7ff;font-weight:800;font-size:20px}
.news-card{padding:0;overflow:hidden}.news-card img{height:180px;object-fit:cover}.news-body{padding:23px}.news-body h3{font-size:18px;margin:0 0 9px}.news-body p{margin:0;color:var(--muted);font-size:13px}
.notice{display:flex;justify-content:space-between;gap:30px;align-items:center;background:var(--soft);border:1px solid #d7e6ff;border-radius:22px;padding:28px 32px}.notice h2{margin:0;font-size:24px}.notice p{margin:5px 0 0;color:var(--muted);font-size:14px}
footer{padding:44px 0 24px;background:#edf2fa}.footer-top{display:flex;justify-content:space-between;gap:40px;margin-bottom:28px}.footer-description{max-width:520px;color:var(--muted);font-size:13px;margin-top:15px}.footer-links{display:flex;gap:22px;align-items:start;font-size:13px;color:var(--muted)}.footer-links a:hover{color:var(--primary)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted);padding-top:20px;border-top:1px solid #d9e3f0}
@media(max-width:900px){.hero-grid,.feature{grid-template-columns:1fr}.grid.three{grid-template-columns:repeat(2,1fr)}.nav-cta{display:none}.section-head{align-items:flex-start;flex-direction:column;gap:12px}}
@media(max-width:600px){.container{width:min(var(--max),calc(100% - 32px))}.site-header{padding-top:14px}.nav-panel{gap:10px}.brand{font-size:16px}.brand-mark{width:34px;height:34px}.nav-links a{padding:7px 9px;font-size:12px}.hero{padding:52px 0}.hero h1{font-size:36px}.hero-visual,.hero-visual img{min-height:270px;height:270px}.grid.three,.grid.two{grid-template-columns:1fr}main section{padding:54px 0}.section-head h2{font-size:26px}.match{grid-template-columns:1fr 62px 1fr;gap:7px}.notice{display:block;padding:24px}.notice .button{margin-top:18px}.footer-top,.footer-bottom{display:block}.footer-links{margin-top:22px;flex-wrap:wrap}.footer-bottom span{display:block;margin-top:8px}}