/* roulang page: index */
:root{--ink:#171a18;--green:#123b32;--green2:#1b5546;--lime:#b8f23c;--paper:#f4f2ec;--mist:#dce4da;--white:#fff;--muted:#66716c;--line:#ced8cf;--radius:20px;--radius-sm:13px;--shadow:0 14px 30px rgba(18,59,50,.11);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit}button,a{outline:none}a:focus-visible,button:focus-visible{outline:3px solid var(--lime);outline-offset:3px}.container{width:min(calc(100% - 48px),var(--max));margin:auto}.section{padding:88px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--green);text-transform:uppercase}.eyebrow:before{content:"";width:22px;height:3px;background:var(--lime)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(37px,5vw,68px);line-height:1.12;letter-spacing:-.06em}h2{font-size:clamp(27px,3.1vw,42px);line-height:1.25;letter-spacing:-.04em;margin-bottom:14px}h3{font-size:19px;line-height:1.4;margin-bottom:8px}.lead{font-size:17px;color:var(--muted);max-width:650px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:36px}.section-head p{margin:0;color:var(--muted);max-width:500px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:800;transition:.22s ease;cursor:pointer}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--lime);color:#142412;box-shadow:0 10px 20px rgba(184,242,60,.18)}.btn-primary:hover{background:#cdf76c}.btn-outline{border-color:rgba(255,255,255,.55);color:#fff}.btn-outline:hover{background:#fff;color:var(--green)}.btn-dark{border-color:var(--green);color:var(--green)}.btn-dark:hover{background:var(--green);color:#fff}.arrow{font-size:20px;line-height:1}.site-header{position:sticky;top:0;z-index:20;background:rgba(244,242,236,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(18,59,50,.1)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:900;color:var(--green);white-space:nowrap}.brand-mark{position:relative;width:31px;height:31px;background:var(--green);border-radius:9px;overflow:hidden}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}.brand-mark:before{width:23px;height:23px;left:8px;top:-9px}.brand-mark:after{width:17px;height:17px;left:-7px;bottom:-5px}.nav-links{display:flex;align-items:center;gap:4px}.nav-links a{padding:9px 12px;border-radius:8px;color:#405048;font-size:14px;font-weight:700;transition:.2s}.nav-links a:hover,.nav-links a.active{background:var(--mist);color:var(--green)}.nav-download{min-height:42px;padding:0 16px;font-size:14px}.menu-toggle{display:none;border:0;background:transparent;font-size:26px;color:var(--green)}
.hero{position:relative;overflow:hidden;background:var(--green);color:#fff;min-height:640px;padding:76px 0 58px}.hero:before{content:"";position:absolute;width:860px;height:860px;border:1px solid rgba(184,242,60,.18);border-radius:50%;right:-280px;top:-420px}.hero:after{content:"";position:absolute;inset:0;opacity:.16;background-image:radial-gradient(var(--lime) 1px,transparent 1px);background-size:18px 18px;mask-image:linear-gradient(90deg,#000,transparent 68%)}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center}.hero .eyebrow{color:var(--lime)}.hero h1{max-width:710px;margin:15px 0 22px}.hero-copy{font-size:18px;color:#d6e2d8;max-width:620px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 24px}.hero-meta{display:flex;gap:10px;flex-wrap:wrap}.hero-meta span{font-size:13px;color:#dbe5dc;border:1px solid rgba(255,255,255,.22);border-radius:20px;padding:6px 10px}.device-stage{position:relative;height:470px;display:flex;justify-content:center;align-items:center}.pitch{position:absolute;width:440px;height:300px;border:1px solid rgba(184,242,60,.28);border-radius:50%;transform:rotate(-15deg)}.pitch:before{content:"";position:absolute;left:50%;top:0;width:1px;height:100%;background:rgba(184,242,60,.25)}.phone{position:relative;width:217px;height:440px;border:8px solid #0b211b;border-radius:35px;background:#eff3ed;padding:13px;box-shadow:22px 25px 0 rgba(0,0,0,.17),0 20px 45px rgba(0,0,0,.28);z-index:2}.notch{width:83px;height:18px;background:#0b211b;border-radius:0 0 12px 12px;margin:-13px auto 12px}.app-top{display:flex;justify-content:space-between;align-items:center;font-size:9px;color:var(--green);font-weight:900}.app-title{font-size:15px;font-weight:900;margin:16px 0 9px;color:var(--green)}.score-panel{padding:12px;background:var(--green);border-radius:13px;color:white}.score-panel small{color:var(--lime);font-size:8px}.teams{display:flex;justify-content:space-between;align-items:center;font-size:10px;margin-top:6px}.score{font-size:18px;font-weight:900;color:var(--lime)}.mini-tabs{display:flex;gap:5px;margin:12px 0}.mini-tabs span{font-size:8px;background:#dce4da;color:var(--green);padding:4px 6px;border-radius:5px}.mini-tabs span:first-child{background:var(--lime);font-weight:bold}.app-list{display:grid;gap:7px}.app-row{display:flex;align-items:center;gap:7px;padding:7px;background:#fff;border-radius:8px;font-size:8px;color:#516058}.app-icon{width:22px;height:22px;border-radius:6px;background:var(--mist)}.app-row b{display:block;color:var(--green);font-size:9px}.float-card{position:absolute;z-index:3;background:#fff;color:var(--green);padding:13px 15px;border-radius:13px;box-shadow:var(--shadow);font-size:11px;font-weight:800}.float-card small{display:block;color:var(--muted);font-weight:500}.float-one{left:3%;top:80px}.float-two{right:0;bottom:65px}.quick{position:relative;margin-top:-32px;z-index:3}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}.quick-item{padding:20px 24px;display:flex;gap:13px;align-items:center;border-right:1px solid var(--line);transition:.2s}.quick-item:last-child{border:0}.quick-item:hover{background:#f9faf6}.quick-icon{width:38px;height:38px;border-radius:11px;background:var(--mist);display:grid;place-items:center;color:var(--green);font-size:20px}.quick-item b{display:block;font-size:14px}.quick-item span{display:block;color:var(--muted);font-size:12px}
.preview-wrap{display:grid;grid-template-columns:250px 1fr;gap:20px;background:#e8ece5;padding:18px;border-radius:24px}.preview-tabs{padding:10px}.preview-tab{width:100%;border:0;background:transparent;text-align:left;padding:17px 15px;border-radius:12px;color:var(--muted);font-weight:800;cursor:pointer;transition:.2s;margin-bottom:5px}.preview-tab.active,.preview-tab:hover{background:var(--green);color:#fff}.preview-tab small{display:block;font-weight:500;font-size:12px;opacity:.75}.display-screen{background:#fcfcf9;border-radius:18px;padding:28px;min-height:385px;overflow:hidden}.screen-header{display:flex;justify-content:space-between;align-items:center}.screen-header b{font-size:22px;color:var(--green)}.live{background:#effad3;color:#406414;border-radius:20px;padding:5px 9px;font-size:11px;font-weight:900}.match-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;margin-top:22px}.match-feature{padding:22px;background:var(--green);color:#fff;border-radius:15px}.match-feature small{color:var(--lime)}.match-feature strong{font-size:24px;display:block;margin:12px 0}.data-stack{display:grid;gap:12px}.data-box{border:1px solid var(--line);border-radius:12px;padding:13px}.data-box b{color:var(--green);display:block}.progress{height:7px;background:var(--mist);border-radius:5px;margin-top:8px;overflow:hidden}.progress i{display:block;height:100%;width:68%;background:var(--lime)}.notice{margin-top:17px;padding:13px;border-radius:12px;background:#eff4eb;border-left:4px solid var(--lime);font-size:13px;color:#385046}
.download-area{background:var(--mist)}.download-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:38px;align-items:center}.download-panel{background:var(--green);color:white;border-radius:22px;padding:34px;display:flex;gap:24px;align-items:center}.download-panel h2{font-size:28px;margin-bottom:8px}.download-panel p{font-size:13px;color:#d2ddd4;margin-bottom:18px}.qr{width:104px;height:104px;flex:0 0 104px;background:repeating-linear-gradient(90deg,#fff 0 5px,#152a22 5px 9px),repeating-linear-gradient(#fff 0 4px,#152a22 4px 8px);border:7px solid #fff;border-radius:8px}.version{font-size:12px;color:#d1dfd4;margin-top:13px}.adapt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.adapt-card{background:#f9faf6;padding:20px;border:1px solid rgba(18,59,50,.13);border-radius:15px}.adapt-card .symbol{font-size:25px;color:var(--green)}.adapt-card b{display:block;margin:7px 0 4px}.adapt-card p{font-size:12px;line-height:1.55;color:var(--muted);margin:0}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.topic{display:flex;align-items:center;gap:15px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:15px;transition:.22s}.topic:hover{transform:translateY(-3px);border-color:#99b88c;box-shadow:var(--shadow)}.topic-no{color:#98a79d;font-weight:900;font-size:13px}.topic-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;background:var(--mist);color:var(--green)}.topic b{font-size:15px;flex:1}.topic .arrow{color:var(--green)}
.schedule{background:var(--green);color:#fff}.schedule .eyebrow{color:var(--lime)}.schedule .section-head p{color:#d5e0d8}.schedule-list{display:grid;gap:10px}.schedule-row{display:grid;grid-template-columns:110px 1fr 160px 90px;align-items:center;gap:18px;padding:18px 22px;border-radius:13px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.13)}.schedule-row:nth-child(2){background:rgba(184,242,60,.13)}.schedule-time{font-weight:900;color:var(--lime)}.schedule-time small{display:block;color:#cbd8cf;font-weight:500}.schedule-name b{display:block}.schedule-name span{font-size:12px;color:#cad7ce}.status{font-size:12px;color:#d6e5d9}.status:before{content:"";display:inline-block;width:7px;height:7px;background:var(--lime);border-radius:50%;margin-right:7px}.schedule-link{font-size:13px;font-weight:800;color:var(--lime);text-align:right}
.feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.feature-main{position:relative;min-height:365px;padding:30px;display:flex;flex-direction:column;justify-content:end;background:linear-gradient(180deg,rgba(12,25,20,.08),rgba(12,25,20,.9)),url("https://images.unsplash.com/photo-1579952363873-27f3bade9f55?auto=format&fit=crop&w=1200&q=75") center/cover;border-radius:22px;color:#fff;overflow:hidden}.feature-main .tag{align-self:flex-start}.feature-main h3{font-size:29px;margin:14px 0 8px}.feature-main p{color:#dde5df;margin-bottom:16px}.text-link{font-size:14px;font-weight:900;color:var(--lime)}.compact-list{display:grid;gap:10px}.compact-card{padding:17px 18px;background:#fff;border:1px solid var(--line);border-radius:14px;transition:.2s}.compact-card:hover{border-color:#9ebf91;box-shadow:0 8px 18px rgba(18,59,50,.08)}.tag{display:inline-block;background:var(--mist);color:var(--green);border-radius:5px;padding:3px 7px;font-size:11px;font-weight:900}.compact-card h3{font-size:16px;margin:8px 0 5px}.compact-card p{color:var(--muted);font-size:12px;line-height:1.55;margin:0 0 6px}.time{font-size:11px;color:#849087}
.basket{background:#ecefe9}.basket-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.basket-card{background:#fff;border-radius:16px;overflow:hidden;border:1px solid var(--line);transition:.22s}.basket-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.cover{height:150px;background-size:cover;background-position:center}.cover.one{background-image:linear-gradient(0deg,rgba(18,59,50,.45),transparent),url("https://images.unsplash.com/photo-1546519638-68e109498ffc?auto=format&fit=crop&w=800&q=75")}.cover.two{background-image:linear-gradient(0deg,rgba(18,59,50,.35),transparent),url("https://images.unsplash.com/photo-1519861531473-9200262188bf?auto=format&fit=crop&w=800&q=75")}.cover.three{background-image:linear-gradient(0deg,rgba(18,59,50,.35),transparent),url("https://images.unsplash.com/photo-1504450758481-7338eba7524a?auto=format&fit=crop&w=800&q=75")}.basket-content{padding:17px}.basket-content h3{font-size:17px;margin:8px 0}.basket-content p{font-size:12px;color:var(--muted);line-height:1.6;margin:0 0 8px}
.news-list{border-top:1px solid var(--line)}.news-row{display:grid;grid-template-columns:105px 110px 1fr 28px;gap:18px;align-items:center;padding:22px 10px;border-bottom:1px solid var(--line);transition:.2s}.news-row:hover{background:#eef2e9;padding-left:18px;padding-right:18px}.news-date{font-weight:900;color:var(--green);font-size:14px}.news-date small{display:block;color:var(--muted);font-weight:500}.news-row h3{margin:0 0 5px;font-size:18px}.news-row p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}.news-arrow{font-size:23px;color:var(--green);text-align:right}.empty{padding:40px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:16px}.empty b{display:block;color:var(--green);font-size:18px;margin-bottom:5px}
.track-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center}.track-art{position:relative;background:var(--green);height:365px;border-radius:22px;overflow:hidden;padding:28px;color:#fff}.track-art:after{content:"";position:absolute;width:270px;height:270px;right:-80px;bottom:-95px;border:35px solid rgba(184,242,60,.2);border-radius:50%}.stat-card{position:absolute;z-index:1;background:#fff;color:var(--green);padding:17px;border-radius:14px;box-shadow:var(--shadow)}.stat-card b{display:block;font-size:24px}.stat-a{top:40px;left:32px}.stat-b{top:162px;right:28px}.track-lines{position:absolute;left:0;bottom:0;width:100%;height:110px;border-top:1px solid rgba(255,255,255,.25);transform:skewY(-10deg)}.track-points{display:grid;gap:18px}.track-point{display:flex;gap:16px;align-items:flex-start}.point-num{display:grid;place-items:center;flex:0 0 36px;height:36px;border-radius:50%;background:var(--lime);color:var(--green);font-size:13px;font-weight:900}.track-point p{margin:4px 0 0;color:var(--muted);font-size:14px}
.steps{background:#fff}.step-grid{display:grid;grid-template-columns:repeat(4,1fr);position:relative}.step-grid:before{content:"";position:absolute;left:12%;right:12%;top:27px;height:1px;background:var(--line)}.step{position:relative;padding:0 18px}.step-num{position:relative;z-index:1;width:55px;height:55px;display:grid;place-items:center;background:var(--green);color:var(--lime);border-radius:50%;font-size:17px;font-weight:900;margin-bottom:17px}.step p{font-size:13px;color:var(--muted);margin:0}
.update-card{background:#e4eadf;border:1px solid #cbd7c9;border-radius:21px;padding:30px;display:grid;grid-template-columns:180px 1fr auto;gap:25px;align-items:center}.update-version b{display:block;font-size:29px;color:var(--green)}.update-version span{font-size:12px;color:var(--muted)}.update-copy h3{margin-bottom:5px}.update-copy p{margin:0;color:var(--muted);font-size:14px}.compat-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.compat{font-size:12px;color:#466055}.compat:before{content:"✓";display:inline-grid;place-items:center;width:17px;height:17px;margin-right:6px;border-radius:50%;background:var(--lime);color:var(--green);font-weight:900}
.faq-wrap{max-width:900px;margin:auto}.faq{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;border:0;background:none;padding:20px 4px;text-align:left;display:flex;justify-content:space-between;gap:20px;color:var(--ink);font-weight:900;cursor:pointer;font-size:16px}.faq-q span:last-child{font-size:24px;color:var(--green);line-height:1}.faq-a{display:none;margin:0 0 19px;padding:14px 17px;background:var(--mist);border-radius:10px;color:#46574d;font-size:14px}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
.closing{padding:74px 0;background:var(--green);color:#fff;overflow:hidden;position:relative}.closing:before{content:"";position:absolute;width:490px;height:490px;border:1px solid rgba(184,242,60,.2);border-radius:50%;right:-140px;top:-220px}.closing-grid{position:relative;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}.closing h2{max-width:700px;margin:12px 0}.closing p{color:#d4dfd5;margin-bottom:22px}.closing-side{display:flex;align-items:center;gap:16px}.closing .qr{width:82px;height:82px;flex-basis:82px}.system-tags{display:flex;gap:7px;flex-wrap:wrap}.system-tags span{font-size:11px;border:1px solid rgba(255,255,255,.25);padding:5px 8px;border-radius:5px;color:#dce7de}
.footer{background:#0d2c24;color:#d5e1d7;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr .8fr;gap:32px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.16)}.footer .brand{color:#fff;margin-bottom:14px}.footer p{font-size:13px;color:#b8c9bc;max-width:340px}.footer h3{font-size:14px;color:var(--lime);margin-bottom:13px}.footer-links{display:grid;gap:8px}.footer-links a{font-size:13px;color:#d4e0d6}.footer-links a:hover{color:var(--lime)}.footer-qr{display:flex;gap:10px;align-items:center}.footer-qr .qr{width:58px;height:58px;flex-basis:58px;border-width:4px}.footer-qr span{font-size:12px;color:#b8c9bc}.copyright{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;padding-top:20px;font-size:12px;color:#9db1a2}
@media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:8px}.hero-grid,.download-grid,.track-grid{grid-template-columns:1fr}.hero{padding-top:60px}.device-stage{height:390px}.feature-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.4fr 1fr}.schedule-row{grid-template-columns:95px 1fr 120px}.schedule-link{display:none}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--max))}.section{padding:58px 0}.nav{height:65px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:65px;padding:13px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{text-align:center}.nav-download{display:none}.nav-links .mobile-download{display:inline-flex}.hero{min-height:auto;padding:55px 0 42px}.hero-copy{font-size:16px}.device-stage{height:355px}.phone{transform:scale(.8)}.float-one{left:1%;top:50px}.float-two{right:0;bottom:25px}.quick{margin-top:0;background:var(--green);padding:0 0 22px}.quick-grid{grid-template-columns:1fr 1fr;border-radius:14px}.quick-item:nth-child(2){border-right:0}.quick-item{padding:15px;border-bottom:1px solid var(--line)}.quick-item:nth-child(3),.quick-item:nth-child(4){border-bottom:0}.preview-wrap{grid-template-columns:1fr}.preview-tabs{display:flex;gap:6px;overflow:auto;padding:0}.preview-tab{min-width:142px;padding:11px;margin:0}.display-screen{padding:18px;min-height:auto}.match-grid{grid-template-columns:1fr}.download-panel{padding:24px;align-items:flex-start}.adapt-grid,.topic-grid,.basket-grid{grid-template-columns:1fr 1fr}.schedule-row{grid-template-columns:80px 1fr;gap:10px;padding:16px}.status{display:none}.feature-main{min-height:315px}.news-row{grid-template-columns:80px 1fr 22px;gap:10px}.news-row .tag{display:none}.news-row h3{font-size:16px}.news-row p{font-size:12px}.step-grid{grid-template-columns:1fr 1fr;gap:25px}.step-grid:before{display:none}.update-card{grid-template-columns:1fr;padding:24px;gap:13px}.compat-list{grid-template-columns:1fr}.closing-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){h1{font-size:37px}.section-head{display:block;margin-bottom:26px}.section-head p{margin-top:10px}.hero-actions .btn{width:100%}.device-stage{height:315px}.phone{transform:scale(.68)}.float-card{font-size:10px;padding:10px}.quick-grid,.adapt-grid,.topic-grid,.basket-grid,.footer-grid{grid-template-columns:1fr}.quick-item{border-right:0!important}.quick-item:nth-child(3){border-bottom:1px solid var(--line)}.download-panel{display:block}.download-panel .qr{margin-bottom:16px}.topic{padding:16px}.schedule-row{grid-template-columns:1fr}.schedule-time small{display:inline;margin-left:7px}.feature-main h3{font-size:24px}.news-row{grid-template-columns:62px 1fr 18px;padding:17px 3px}.news-row:hover{padding-left:9px;padding-right:9px}.track-art{height:280px}.step-grid{grid-template-columns:1fr}.closing-side{align-items:flex-start;flex-direction:column}.footer-grid{gap:24px}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}}

/* roulang page: article */
:root{--ink:#171a18;--green:#123b32;--green2:#1b5546;--lime:#b8f23c;--paper:#f4f2ec;--mist:#dce4da;--white:#fff;--muted:#66716c;--line:#ced8cf;--radius:20px;--radius-sm:13px;--shadow:0 14px 30px rgba(18,59,50,.11);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit}button,a{outline:none}a:focus-visible,button:focus-visible{outline:3px solid var(--lime);outline-offset:3px}.container{width:min(calc(100% - 48px),var(--max));margin:auto}.section{padding:78px 0}.site-header{position:sticky;top:0;z-index:20;background:rgba(244,242,236,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(18,59,50,.1)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:900;color:var(--green);white-space:nowrap}.brand-mark{position:relative;width:31px;height:31px;background:var(--green);border-radius:9px;overflow:hidden;flex:0 0 auto}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}.brand-mark:before{width:23px;height:23px;left:8px;top:-9px}.brand-mark:after{width:17px;height:17px;left:-7px;bottom:-5px}.nav-links{display:flex;align-items:center;gap:4px}.nav-links a{padding:9px 12px;border-radius:8px;color:#405048;font-size:14px;font-weight:700;transition:.2s}.nav-links a:hover,.nav-links a.active{background:var(--mist);color:var(--green)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:800;transition:.22s ease;cursor:pointer}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--lime);color:#142412;box-shadow:0 10px 20px rgba(184,242,60,.18)}.btn-primary:hover{background:#cdf76c}.btn-dark{border-color:var(--green);color:var(--green)}.btn-dark:hover{background:var(--green);color:#fff}.nav-download{min-height:42px;padding:0 16px;font-size:14px}.arrow{font-size:20px;line-height:1}.menu-toggle{display:none;border:0;background:transparent;font-size:26px;color:var(--green)}.mobile-download{display:none!important}
.article-hero{position:relative;overflow:hidden;background:var(--green);color:#fff;padding:58px 0 70px}.article-hero:before{content:"";position:absolute;width:620px;height:620px;border:1px solid rgba(184,242,60,.2);border-radius:50%;right:-190px;top:-330px}.article-hero:after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(184,242,60,.55) 1px,transparent 1px);background-size:18px 18px;opacity:.14;mask-image:linear-gradient(90deg,#000,transparent 75%)}.article-hero .container{position:relative;z-index:1}.breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:#c6d5cb;font-size:13px;margin-bottom:28px}.breadcrumb a{transition:.2s}.breadcrumb a:hover{color:var(--lime)}.breadcrumb i{font-style:normal;opacity:.55}.article-category,.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.11em;font-weight:900;text-transform:uppercase}.article-category{color:var(--lime)}.article-category:before{content:"";width:21px;height:3px;background:var(--lime)}.article-hero h1{max-width:900px;margin:16px 0 18px;font-size:clamp(30px,4vw,52px);line-height:1.22;letter-spacing:-.035em;font-weight:850}.article-summary{max-width:780px;margin:0;color:#d7e4da;font-size:17px}.article-meta{display:flex;align-items:center;gap:17px;flex-wrap:wrap;margin-top:25px;color:#c4d3c9;font-size:13px}.article-meta span{display:inline-flex;align-items:center;gap:7px}.article-meta b{color:var(--lime);font-weight:800}
.visual-section{padding:42px 0 0}.article-visual{height:300px;position:relative;overflow:hidden;border-radius:var(--radius);background:linear-gradient(125deg,#143d33 0%,#1f5b48 48%,#7f9f52 48.5%,#dce4da 100%);box-shadow:var(--shadow)}.article-visual:before{content:"";position:absolute;width:460px;height:460px;border:2px solid rgba(255,255,255,.3);border-radius:50%;left:6%;top:-310px}.article-visual:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 30px,rgba(255,255,255,.1) 31px 32px)}.visual-score{position:absolute;z-index:1;right:8%;top:50%;transform:translateY(-50%);width:220px;padding:20px;background:rgba(255,255,255,.92);border-radius:16px;color:var(--green);box-shadow:0 16px 30px rgba(10,36,29,.2)}.visual-score small{display:block;color:var(--muted);font-weight:800;letter-spacing:.08em}.visual-score b{display:block;font-size:29px;line-height:1.2;margin:5px 0}.visual-score span{font-size:13px;color:#526259}
.article-layout{display:grid;grid-template-columns:230px minmax(0,760px);gap:55px;justify-content:center;align-items:start}.toc{position:sticky;top:102px;padding:20px;border:1px solid var(--line);border-radius:16px;background:#f9faf6}.toc h2{font-size:15px;color:var(--green);margin:0 0 12px;font-weight:900}.toc a{display:block;padding:8px 0;border-top:1px solid rgba(18,59,50,.09);font-size:13px;color:var(--muted);transition:.2s}.toc a:hover{color:var(--green);padding-left:5px}.article-content{min-width:0}.article-content h2{font-size:27px;line-height:1.4;margin:43px 0 16px;color:var(--green);font-weight:850}.article-content h3{font-size:21px;line-height:1.45;margin:30px 0 12px;color:var(--ink);font-weight:850}.article-content p{margin:0 0 19px;color:#35423c}.article-content ul,.article-content ol{padding-left:24px;margin:0 0 22px;color:#35423c}.article-content li{padding-left:5px;margin-bottom:8px}.article-content blockquote{margin:28px 0;padding:18px 21px;border-left:4px solid var(--lime);background:#ebf0e8;border-radius:0 14px 14px 0;color:var(--green);font-weight:700}.article-content img{margin:28px 0;border-radius:16px;border:1px solid var(--line)}.article-content table{width:100%;border-collapse:separate;border-spacing:0;margin:25px 0;border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:14px}.article-content th,.article-content td{padding:12px 14px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);text-align:left}.article-content th{background:var(--mist);color:var(--green)}.article-content tr:last-child td{border-bottom:0}.article-content th:last-child,.article-content td:last-child{border-right:0}.notice{margin:38px 0;padding:24px;border:1px solid #b5cb9b;border-radius:16px;background:#f8fbec}.notice-top{display:flex;align-items:center;gap:10px;margin-bottom:8px;color:var(--green);font-weight:900}.notice-icon{display:inline-grid;place-items:center;width:27px;height:27px;border-radius:8px;background:var(--lime);color:var(--green)}.notice p{margin:0 0 16px!important;font-size:14px}.notice .btn{min-height:42px;font-size:14px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}.section-head h2{margin:7px 0 0;color:var(--green);font-size:30px;line-height:1.3;font-weight:850}.section-head p{margin:0;max-width:450px;color:var(--muted)}.eyebrow{color:var(--green)}.eyebrow:before{content:"";width:22px;height:3px;background:var(--lime)}.related{background:#e9ede5}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.related-card{display:flex;flex-direction:column;min-height:244px;padding:22px;background:var(--white);border:1px solid var(--line);border-radius:17px;transition:.22s}.related-card:hover{border-color:#96ba72;box-shadow:var(--shadow);transform:translateY(-3px)}.card-top{display:flex;justify-content:space-between;gap:10px;align-items:center}.tag{display:inline-flex;padding:4px 9px;border-radius:7px;background:var(--mist);color:var(--green);font-size:12px;font-weight:850}.date{color:var(--muted);font-size:12px}.related-card h3{font-size:18px;line-height:1.45;margin:18px 0 10px;color:var(--ink);font-weight:850}.related-card p{font-size:13px;line-height:1.65;color:var(--muted);margin:0 0 16px}.text-link{margin-top:auto;color:var(--green);font-size:14px;font-weight:900}.text-link:hover{color:var(--green2)}.article-bottom{padding:72px 0}.bottom-panel{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:31px 36px;border-radius:20px;background:var(--green);color:#fff}.bottom-panel h2{font-size:25px;margin:0 0 6px;font-weight:850}.bottom-panel p{margin:0;color:#d2ded4}.bottom-actions{display:flex;gap:12px;flex-wrap:wrap}.bottom-actions .btn-dark{border-color:rgba(255,255,255,.55);color:#fff}.bottom-actions .btn-dark:hover{background:#fff;color:var(--green)}
.footer{background:var(--green);color:#fff;padding:65px 0 20px}.footer .brand{color:#fff}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr .9fr;gap:36px;padding-bottom:42px}.footer p{margin:16px 0 0;color:#cbd9cf;font-size:14px;max-width:320px}.footer h3{font-size:14px;color:var(--lime);margin:3px 0 16px;font-weight:900}.footer-links{display:grid;gap:9px}.footer-links a{font-size:14px;color:#d9e5dc;transition:.2s}.footer-links a:hover{color:var(--lime);padding-left:4px}.footer-qr{display:flex;align-items:center;gap:12px;color:#d9e5dc;font-size:12px;line-height:1.5}.qr{width:66px;height:66px;background:repeating-linear-gradient(90deg,#fff 0 4px,transparent 4px 8px),repeating-linear-gradient(0deg,#fff 0 4px,transparent 4px 8px);background-color:var(--lime);border:5px solid #fff;border-radius:5px}.copyright{padding-top:20px;border-top:1px solid rgba(255,255,255,.18);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#b9c9be;font-size:12px}
.not-found{max-width:760px;margin:0 auto;padding:60px 32px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:20px}.not-found h2{font-size:28px;color:var(--green);margin:0 0 12px}.not-found p{color:var(--muted);margin:0 0 22px}
@media(max-width:960px){.nav{gap:14px}.nav-links a{padding:8px}.article-layout{grid-template-columns:1fr;gap:25px}.toc{position:relative;top:auto;display:grid;grid-template-columns:repeat(2,1fr);gap:0}.toc h2{grid-column:1/-1}.article-content{max-width:760px;margin:auto}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--max))}.section{padding:55px 0}.nav{height:68px}.nav-download{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;padding:14px;background:#f4f2ec;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:11px 12px}.nav-links .mobile-download{display:flex!important;margin-top:6px}.article-hero{padding:42px 0 52px}.article-summary{font-size:16px}.article-visual{height:230px}.visual-score{right:22px;width:185px;padding:15px}.visual-score b{font-size:23px}.related-grid{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:10px}.bottom-panel{display:block;padding:27px}.bottom-actions{margin-top:20px}.footer-grid{gap:28px}}
@media(max-width:520px){body{font-size:15px}.brand{font-size:15px}.article-hero h1{font-size:31px}.article-meta{gap:10px}.visual-section{padding-top:27px}.article-visual{height:185px;border-radius:15px}.visual-score{right:15px;width:150px;padding:12px}.visual-score small,.visual-score span{font-size:10px}.visual-score b{font-size:18px}.toc{grid-template-columns:1fr;padding:16px}.article-content h2{font-size:23px;margin-top:34px}.article-content h3{font-size:19px}.article-content table{font-size:12px}.article-content th,.article-content td{padding:9px}.footer{padding-top:48px}.footer-grid{grid-template-columns:1fr}.copyright{display:grid}.bottom-panel h2{font-size:22px}.bottom-actions .btn{width:100%}}

/* roulang page: category1 */
:root{--ink:#171a18;--green:#123b32;--green2:#1b5546;--lime:#b8f23c;--paper:#f4f2ec;--mist:#dce4da;--white:#fff;--muted:#66716c;--line:#ced8cf;--radius:20px;--radius-sm:13px;--shadow:0 14px 30px rgba(18,59,50,.11);--max:1240px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    button,a{outline:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--max));margin:auto}
    .section{padding:88px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--green);text-transform:uppercase}
    .eyebrow:before{content:"";width:22px;height:3px;background:var(--lime)}
    .lead{font-size:17px;color:var(--muted);max-width:690px;margin:14px 0 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-head h2{margin:7px 0 0}
    .section-head p{margin:0;color:var(--muted);max-width:490px}
    h1,h2,h3,p{overflow-wrap:anywhere}
    h1{font-size:clamp(36px,5vw,62px);line-height:1.16;letter-spacing:-.045em;font-weight:850}
    h2{font-size:clamp(28px,3.2vw,42px);line-height:1.25;letter-spacing:-.035em;font-weight:850}
    h3{font-size:19px;line-height:1.4;font-weight:850}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:800;transition:.22s ease;cursor:pointer}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--lime);color:#142412;box-shadow:0 10px 20px rgba(184,242,60,.18)}
    .btn-primary:hover{background:#cdf76c}
    .btn-dark{border-color:var(--green);color:var(--green);background:transparent}
    .btn-dark:hover{background:var(--green);color:#fff}
    .btn-outline{border-color:rgba(255,255,255,.55);color:#fff}
    .btn-outline:hover{background:#fff;color:var(--green)}
    .arrow{font-size:20px;line-height:1}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(244,242,236,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(18,59,50,.1)}
    .nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:900;color:var(--green);white-space:nowrap}
    .brand-mark{position:relative;width:31px;height:31px;background:var(--green);border-radius:9px;overflow:hidden;flex:none}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}
    .brand-mark:before{width:23px;height:23px;left:8px;top:-9px}
    .brand-mark:after{width:17px;height:17px;left:-7px;bottom:-5px}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:#405048;font-size:14px;font-weight:700;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--mist);color:var(--green)}
    .nav-download{min-height:42px;padding:0 16px;font-size:14px}
    .mobile-download{display:none!important}
    .menu-toggle{display:none;border:0;background:transparent;font-size:26px;color:var(--green);line-height:1}
    .channel-head{position:relative;overflow:hidden;padding:68px 0 61px;background:var(--white);border-bottom:1px solid var(--line)}
    .channel-head:before{content:"";position:absolute;width:570px;height:570px;border:1px solid rgba(18,59,50,.12);border-radius:50%;right:-170px;top:-385px}
    .channel-head:after{content:"";position:absolute;width:360px;height:360px;border:28px solid rgba(184,242,60,.24);border-radius:50%;right:9%;bottom:-260px}
    .breadcrumb{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--muted);font-size:13px;font-weight:700;margin-bottom:24px}
    .breadcrumb span{color:#9ba69f}
    .channel-head h1{position:relative;z-index:1;max-width:850px;margin:10px 0 0;color:var(--green)}
    .channel-head .lead{position:relative;z-index:1}
    .head-stats{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;margin-top:27px}
    .head-stats span{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border:1px solid var(--line);border-radius:20px;background:#fafbf7;color:#526159;font-size:13px;font-weight:700}
    .head-stats i{width:7px;height:7px;background:var(--lime);border-radius:50%;display:inline-block}
    .download-panel{display:grid;grid-template-columns:.92fr 1.08fr;gap:45px;align-items:center;padding:42px;background:var(--green);border-radius:24px;color:#fff;box-shadow:var(--shadow);overflow:hidden;position:relative}
    .download-panel:after{content:"";position:absolute;width:410px;height:410px;border:1px solid rgba(184,242,60,.22);border-radius:50%;right:-200px;top:-230px}
    .download-copy{position:relative;z-index:1}
    .download-copy h2{margin:10px 0 12px}
    .download-copy p{color:#d7e3d9;margin:0;max-width:530px}
    .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}
    .version-line{display:flex;flex-wrap:wrap;gap:10px;margin-top:21px}
    .version-line span{border:1px solid rgba(255,255,255,.22);border-radius:20px;padding:6px 10px;color:#d7e3d9;font-size:12px;font-weight:700}
    .scan-box{position:relative;z-index:1;display:flex;justify-content:center;align-items:center;gap:24px;padding:24px}
    .qr-large{width:148px;height:148px;background-color:#fff;border:11px solid #fff;border-radius:10px;box-shadow:0 12px 28px rgba(0,0,0,.18);background-image:linear-gradient(90deg,#123b32 10%,transparent 10%,transparent 35%,#123b32 35%,#123b32 46%,transparent 46%,transparent 60%,#123b32 60%,#123b32 71%,transparent 71%),linear-gradient(#123b32 10%,transparent 10%,transparent 28%,#123b32 28%,#123b32 42%,transparent 42%,transparent 57%,#123b32 57%,#123b32 68%,transparent 68%);background-size:25px 25px}
    .scan-note{max-width:150px;font-size:14px;font-weight:800;line-height:1.55}
    .scan-note small{display:block;margin-top:6px;color:#d7e3d9;font-size:12px;font-weight:500}
    .method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .method-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:25px;min-height:265px;transition:.22s ease}
    .method-card:hover{border-color:#aeca72;box-shadow:var(--shadow);transform:translateY(-3px)}
    .method-icon{width:50px;height:50px;display:grid;place-items:center;background:var(--mist);border-radius:14px;color:var(--green);font-size:22px;font-weight:900}
    .method-card h3{margin:18px 0 8px}
    .method-card p{margin:0;color:var(--muted);font-size:14px}
    .mini-steps{display:grid;gap:6px;margin:17px 0 0;padding:0;list-style:none;color:#405048;font-size:13px;font-weight:700}
    .mini-steps li:before{content:"✓";display:inline-grid;place-items:center;width:17px;height:17px;margin-right:8px;border-radius:50%;background:var(--lime);color:var(--green);font-size:11px}
    .install-wrap{background:var(--mist)}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .timeline:before{content:"";position:absolute;left:9%;right:9%;top:28px;height:1px;background:#aebfb4}
    .step{position:relative;z-index:1}
    .step-num{width:57px;height:57px;display:grid;place-items:center;background:var(--green);color:var(--lime);border:5px solid var(--mist);border-radius:50%;font-size:14px;font-weight:900}
    .step h3{margin:18px 0 7px;font-size:18px}
    .step p{margin:0;color:#516058;font-size:14px;max-width:235px}
    .notice-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}
    .notice-main{padding:30px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
    .notice-main h2{margin:8px 0 11px}
    .notice-main p{color:var(--muted);margin:0}
    .notice-list{display:grid;gap:10px;margin-top:22px}
    .notice-item{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:14px;color:#46564d}
    .notice-item:first-child{border-top:0}
    .notice-dot{width:22px;height:22px;display:grid;place-items:center;flex:none;border-radius:50%;background:var(--lime);color:var(--green);font-size:12px;font-weight:900;margin-top:2px}
    .safe-card{padding:30px;border-radius:var(--radius);background:var(--green);color:#fff}
    .safe-card h3{margin:8px 0 15px;font-size:25px}
    .safe-card p{color:#d4e0d7;margin:0}
    .safe-list{list-style:none;padding:0;margin:20px 0 0}
    .safe-list li{padding:11px 0;border-top:1px solid rgba(255,255,255,.18);font-size:14px}
    .safe-list li:before{content:"●";color:var(--lime);font-size:10px;margin-right:9px}
    .guide-list{display:grid;gap:12px}
    .guide-row{display:grid;grid-template-columns:86px 1fr auto;align-items:center;gap:22px;background:var(--white);border:1px solid var(--line);border-radius:16px;padding:17px 20px;transition:.22s ease}
    .guide-row:hover{border-color:#aeca72;box-shadow:0 9px 22px rgba(18,59,50,.07)}
    .guide-date{font-size:12px;font-weight:900;color:var(--green);line-height:1.35}
    .guide-date span{display:block;color:var(--muted);font-weight:600}
    .guide-content{min-width:0}
    .guide-label{display:inline-flex;padding:3px 8px;background:var(--mist);border-radius:5px;color:var(--green);font-size:11px;font-weight:800}
    .guide-content h3{margin:6px 0 3px;font-size:17px}
    .guide-content p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}
    .text-link{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-size:14px;font-weight:900;white-space:nowrap}
    .text-link:hover{color:var(--green2)}
    .more-line{display:flex;justify-content:flex-end;margin-top:20px}
    .compatibility{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start}
    .compatibility-copy h2{margin:9px 0 12px}
    .compatibility-copy p{margin:0;color:var(--muted)}
    .compatibility-copy .btn{margin-top:22px}
    .compat-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white)}
    .compat-row{display:grid;grid-template-columns:.8fr .8fr 1.4fr;gap:10px;padding:15px 18px;border-top:1px solid var(--line);font-size:14px;align-items:center}
    .compat-row:first-child{border-top:0;background:var(--green);color:#fff;font-weight:800}
    .compat-row:not(:first-child) span:first-child{font-weight:850;color:var(--green)}
    .compat-row span:last-child{color:var(--muted)}
    .compat-row:first-child span:last-child{color:#fff}
    .faq-wrap{max-width:900px;margin:auto}
    .faq-wrap .section-head{display:block;text-align:center}
    .faq-wrap .section-head p{margin:11px auto 0}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:var(--white);border:1px solid var(--line);border-radius:14px;overflow:hidden}
    .faq-question{display:flex;width:100%;align-items:center;justify-content:space-between;gap:20px;padding:19px 21px;border:0;background:transparent;color:var(--ink);text-align:left;font-weight:850;cursor:pointer}
    .faq-question:hover{color:var(--green)}
    .faq-sign{display:grid;place-items:center;width:25px;height:25px;flex:none;border-radius:50%;background:var(--mist);color:var(--green);font-size:20px;line-height:1}
    .faq-answer{display:none;padding:0 21px 20px;color:var(--muted);font-size:14px}
    .faq-item.open{border-color:#b6cb9f;background:#fbfcf8}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-sign:before{content:"−"}
    .faq-item.open .faq-sign{font-size:0;background:var(--lime)}
    .faq-item.open .faq-sign:before{font-size:20px}
    .bottom-help{padding:43px;background:var(--green);border-radius:24px;display:flex;align-items:center;justify-content:space-between;gap:30px;color:#fff}
    .bottom-help h2{margin:8px 0 6px}
    .bottom-help p{margin:0;color:#d4e0d7}
    .bottom-help .eyebrow{color:var(--lime)}
    .bottom-help-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none}
    .footer{padding:66px 0 24px;background:var(--green);color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.45fr .9fr .9fr .8fr;gap:42px;padding-bottom:42px}
    .footer .brand{color:#fff}
    .footer p{margin:17px 0 0;max-width:330px;color:#cfdbd2;font-size:14px;line-height:1.7}
    .footer h3{font-size:15px;margin:4px 0 16px;color:var(--lime)}
    .footer-links{display:grid;gap:9px}
    .footer-links a{font-size:14px;color:#d8e3da;transition:.2s}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-qr{display:flex;gap:12px;align-items:center;color:#d8e3da;font-size:13px;line-height:1.5}
    .qr{width:64px;height:64px;flex:none;border:5px solid #fff;border-radius:5px;background-color:#fff;background-image:linear-gradient(90deg,#123b32 12%,transparent 12%,transparent 38%,#123b32 38%,#123b32 54%,transparent 54%,transparent 69%,#123b32 69%),linear-gradient(#123b32 12%,transparent 12%,transparent 35%,#123b32 35%,#123b32 53%,transparent 53%,transparent 70%,#123b32 70%);background-size:13px 13px}
    .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);color:#b8c8bd;font-size:12px}
    @media(max-width:1024px){
      .download-panel,.compatibility{grid-template-columns:1fr}
      .scan-box{justify-content:flex-start;padding:0}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:1/-1}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--max))}
      .section{padding:62px 0}
      .nav{height:68px;gap:12px}
      .nav-download{display:none}
      .menu-toggle{display:block}
      .nav-links{position:absolute;top:68px;left:0;right:0;display:none;align-items:stretch;flex-direction:column;gap:4px;padding:14px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 14px 25px rgba(18,59,50,.08)}
      .nav-links.open{display:flex}
      .nav-links a{padding:11px 12px}
      .mobile-download{display:inline-flex!important;margin-top:8px}
      .channel-head{padding:48px 0}
      .download-panel{padding:29px}
      .method-grid{grid-template-columns:1fr}
      .method-card{min-height:auto}
      .timeline{grid-template-columns:1fr;gap:0}
      .timeline:before{left:28px;top:29px;bottom:29px;right:auto;width:1px;height:auto}
      .step{display:grid;grid-template-columns:57px 1fr;column-gap:17px;padding-bottom:27px}
      .step:last-child{padding-bottom:0}
      .step h3{margin:7px 0 5px}
      .step p{grid-column:2}
      .notice-grid{grid-template-columns:1fr}
      .guide-row{grid-template-columns:72px 1fr;gap:13px}
      .guide-row .text-link{grid-column:2}
      .compat-row{grid-template-columns:.78fr .72fr 1.25fr;padding:13px;font-size:12px}
      .bottom-help{display:block;padding:31px}
      .bottom-help-actions{margin-top:23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:32px 22px}
      .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:1/-1}
      .copyright{display:grid}
    }
    @media(max-width:520px){
      body{font-size:15px}
      .brand{font-size:15px}
      .brand-mark{width:28px;height:28px}
      .section-head{display:block;margin-bottom:25px}
      .section-head p{margin-top:12px}
      .channel-head h1{font-size:36px}
      .head-stats{margin-top:20px}
      .download-actions,.bottom-help-actions{display:grid;grid-template-columns:1fr}
      .download-actions .btn,.bottom-help-actions .btn{width:100%}
      .scan-box{gap:16px}
      .qr-large{width:124px;height:124px}
      .scan-note{font-size:13px}
      .method-card{padding:21px}
      .guide-row{padding:16px}
      .guide-content h3{font-size:16px}
      .guide-content p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
      .compat-table{overflow:auto}
      .compat-row{min-width:460px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:auto}
    }

/* roulang page: category2 */
:root{--ink:#171a18;--green:#123b32;--green2:#1b5546;--lime:#b8f23c;--paper:#f4f2ec;--mist:#dce4da;--white:#fff;--muted:#66716c;--line:#ced8cf;--radius:20px;--radius-sm:13px;--shadow:0 14px 30px rgba(18,59,50,.11);--max:1240px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    button,a{outline:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--max));margin:auto}
    .section{padding:88px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--green);text-transform:uppercase}
    .eyebrow:before{content:"";width:22px;height:3px;background:var(--lime)}
    .lead{font-size:17px;color:var(--muted);max-width:680px;margin:13px 0 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-head h2{margin:8px 0 0;font-size:34px;line-height:1.3;color:var(--green);font-weight:850}
    .section-head p{margin:0;color:var(--muted);max-width:470px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:800;transition:.22s ease;cursor:pointer}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--lime);color:#142412;box-shadow:0 10px 20px rgba(184,242,60,.18)}
    .btn-primary:hover{background:#cdf76c}
    .btn-outline{border-color:rgba(255,255,255,.55);color:#fff}
    .btn-outline:hover{background:#fff;color:var(--green)}
    .btn-dark{border-color:var(--green);color:var(--green)}
    .btn-dark:hover{background:var(--green);color:#fff}
    .arrow{font-size:20px;line-height:1}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(244,242,236,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(18,59,50,.1)}
    .nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:900;color:var(--green);white-space:nowrap}
    .brand-mark{position:relative;width:31px;height:31px;background:var(--green);border-radius:9px;overflow:hidden;flex:none}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}
    .brand-mark:before{width:23px;height:23px;left:8px;top:-9px}
    .brand-mark:after{width:17px;height:17px;left:-7px;bottom:-5px}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:#405048;font-size:14px;font-weight:700;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--mist);color:var(--green)}
    .nav-download{min-height:42px;padding:0 16px;font-size:14px}
    .mobile-download{display:none!important}
    .menu-toggle{display:none;border:0;background:transparent;font-size:26px;color:var(--green);line-height:1}

    .page-intro{padding:64px 0 48px;background:linear-gradient(180deg,#e8ece3 0%,var(--paper) 100%);border-bottom:1px solid var(--line)}
    .crumbs{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:26px}
    .crumbs span{color:#98a49c}
    .page-intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:end}
    h1{font-size:clamp(36px,5vw,61px);letter-spacing:-.045em;line-height:1.13;color:var(--green);margin:12px 0 0;font-weight:900}
    .intro-note{border-left:3px solid var(--lime);padding:8px 0 8px 21px;color:#4e5c54;font-size:15px;max-width:390px}
    .update-stamp{display:flex;align-items:center;gap:10px;margin-top:22px;color:var(--muted);font-size:13px}
    .status-dot{width:10px;height:10px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(184,242,60,.2)}

    .focus-layout{display:grid;grid-template-columns:1.18fr .82fr;gap:20px}
    .focus-main{min-height:415px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:end;padding:34px;border-radius:var(--radius);background:var(--green);color:#fff;isolation:isolate}
    .focus-main:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 76% 20%,rgba(184,242,60,.27),transparent 22%),linear-gradient(135deg,transparent 40%,rgba(255,255,255,.06) 40% 41%,transparent 41%),repeating-radial-gradient(circle at 90% 20%,transparent 0 28px,rgba(255,255,255,.08) 29px 30px);z-index:-1}
    .focus-main:after{content:"MATCH DAY";position:absolute;top:25px;right:27px;font-size:12px;letter-spacing:.18em;font-weight:900;color:rgba(255,255,255,.35)}
    .tag{display:inline-flex;align-items:center;width:max-content;border-radius:20px;padding:5px 10px;font-size:12px;font-weight:800;line-height:1.2;background:rgba(184,242,60,.18);color:var(--lime)}
    .focus-main h2{font-size:clamp(26px,3vw,39px);line-height:1.24;max-width:620px;margin:16px 0 12px;font-weight:850}
    .focus-main p{margin:0;max-width:590px;color:#d7e4d8}
    .article-link{display:inline-flex;align-items:center;gap:9px;margin-top:20px;width:max-content;font-weight:850;transition:.2s}
    .article-link:hover{gap:14px;color:var(--lime)}
    .brief-stack{display:grid;gap:20px}
    .brief-card{position:relative;min-height:197px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden;transition:.22s}
    .brief-card:hover{border-color:#9fc982;box-shadow:var(--shadow);transform:translateY(-3px)}
    .brief-card:after{content:"";position:absolute;width:95px;height:95px;border:18px solid var(--mist);border-radius:50%;right:-30px;bottom:-39px}
    .brief-card h3{position:relative;font-size:20px;line-height:1.4;color:var(--green);margin:14px 0 8px;font-weight:850}
    .brief-card p{position:relative;margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .brief-card .article-link{position:relative;color:var(--green);font-size:14px;margin-top:11px}

    .news-section{padding-top:30px}
    .news-shell{display:grid;grid-template-columns:1fr 285px;gap:26px;align-items:start}
    .news-list{border-top:1px solid var(--line)}
    .news-row{display:grid;grid-template-columns:104px 1fr auto;gap:22px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line);transition:.2s}
    .news-row:hover{padding-left:12px;padding-right:12px;background:#f9faf6}
    .news-date{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--green);font-weight:900;font-size:14px;line-height:1.35}
    .news-date small{display:block;color:var(--muted);font-family:inherit;font-weight:600;font-size:11px}
    .news-content .tag{font-size:11px;padding:4px 8px;background:var(--mist);color:var(--green)}
    .news-content h3{font-size:20px;line-height:1.4;margin:8px 0 5px;color:var(--green);font-weight:850}
    .news-content p{margin:0;color:var(--muted);font-size:14px;line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .round-arrow{display:grid;place-items:center;width:39px;height:39px;border:1px solid var(--line);border-radius:50%;font-size:20px;color:var(--green);transition:.2s}
    .news-row:hover .round-arrow{background:var(--green);border-color:var(--green);color:var(--lime)}
    .schedule-panel{position:sticky;top:100px;border-radius:var(--radius);background:var(--green);color:#fff;padding:24px}
    .schedule-panel .eyebrow{color:var(--lime)}
    .schedule-panel h3{font-size:22px;margin:10px 0 18px;font-weight:850}
    .schedule-mini{padding:15px 0;border-top:1px solid rgba(255,255,255,.18)}
    .schedule-mini:first-of-type{border-top:0}
    .schedule-mini time{color:var(--lime);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;font-weight:800}
    .schedule-mini b{display:block;margin:4px 0;font-size:14px;line-height:1.45}
    .schedule-mini span{font-size:12px;color:#cbd8cd}

    .topic-band{background:var(--mist)}
    .topic-layout{display:grid;grid-template-columns:250px 1fr;gap:28px;align-items:start}
    .topic-copy h2{font-size:34px;line-height:1.3;color:var(--green);margin:8px 0 13px;font-weight:850}
    .topic-copy p{margin:0;color:var(--muted)}
    .football-track{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .story-card{min-height:260px;position:relative;padding:20px;display:flex;flex-direction:column;justify-content:end;overflow:hidden;border-radius:16px;background:#345f53;color:#fff;isolation:isolate;transition:.22s}
    .story-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .story-card:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(7,22,16,.02),rgba(7,22,16,.88)),radial-gradient(circle at 74% 13%,rgba(184,242,60,.7),transparent 0 14%,transparent 15%),linear-gradient(128deg,transparent 51%,rgba(255,255,255,.2) 51% 52%,transparent 52%)}
    .story-card:nth-child(2){background:#45695d}
    .story-card:nth-child(2):before{background:linear-gradient(180deg,rgba(7,22,16,.04),rgba(7,22,16,.9)),repeating-radial-gradient(circle at 100% 0,transparent 0 17px,rgba(184,242,60,.22) 18px 19px)}
    .story-card:nth-child(3){background:#284d42}
    .story-card .tag{background:rgba(255,255,255,.16);color:#fff}
    .story-card h3{font-size:19px;line-height:1.42;margin:11px 0 4px;font-weight:850}
    .story-card time{font-size:12px;color:#d7e3d9}
    .story-card .article-link{font-size:13px;margin-top:10px}

    .basketball-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px}
    .basketball-intro{padding:31px;border-radius:var(--radius);background:var(--green);color:#fff}
    .basketball-intro .eyebrow{color:var(--lime)}
    .basketball-intro h2{font-size:32px;line-height:1.3;margin:12px 0;font-weight:850}
    .basketball-intro p{margin:0;color:#d3dfd5}
    .basketball-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .basketball-card{display:grid;grid-template-columns:61px 1fr;gap:14px;padding:20px;background:var(--white);border:1px solid var(--line);border-radius:16px;transition:.22s}
    .basketball-card:hover{border-color:#9fc982;box-shadow:var(--shadow)}
    .ball-icon{width:61px;height:61px;border-radius:15px;background:var(--mist);position:relative;overflow:hidden}
    .ball-icon:before,.ball-icon:after{content:"";position:absolute;border:2px solid var(--green);border-radius:50%}
    .ball-icon:before{width:54px;height:54px;left:4px;top:4px}
    .ball-icon:after{width:70px;height:35px;left:-5px;top:13px;border-left:0;border-right:0}
    .basketball-card .tag{font-size:10px;padding:4px 7px;background:var(--mist);color:var(--green)}
    .basketball-card h3{font-size:16px;line-height:1.43;color:var(--green);margin:6px 0;font-weight:850}
    .basketball-card time{font-size:12px;color:var(--muted)}

    .reading-section{background:#fff}
    .reading-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .reading-card{padding:25px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fbfcf8;transition:.22s}
    .reading-card:hover{border-color:#9fc982;box-shadow:var(--shadow);transform:translateY(-3px)}
    .reading-num{display:block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--green);font-size:13px;font-weight:900}
    .reading-card b{display:block;margin:11px 0 7px;color:var(--green);font-size:18px}
    .reading-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .reading-card .article-link{font-size:13px;color:var(--green);margin-top:16px}

    .data-callout{padding:0 0 88px}
    .data-callout-inner{display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border-radius:var(--radius);background:var(--green)}
    .callout-visual{min-height:325px;position:relative;padding:30px;background:#1d5144;color:#fff;overflow:hidden}
    .callout-visual:before{content:"";position:absolute;width:310px;height:310px;border:1px solid rgba(184,242,60,.35);border-radius:50%;left:-110px;bottom:-160px}
    .score-lines{position:absolute;right:27px;top:38px;width:160px;display:grid;gap:11px}
    .score-lines span{height:10px;border-radius:10px;background:rgba(255,255,255,.18)}
    .score-lines span:nth-child(2){width:75%;background:rgba(184,242,60,.65)}
    .score-lines span:nth-child(3){width:52%}
    .callout-visual b{position:relative;display:block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--lime);font-size:13px;letter-spacing:.15em}
    .callout-visual strong{position:relative;display:block;max-width:310px;margin-top:15px;font-size:29px;line-height:1.35}
    .callout-copy{padding:44px;color:#fff;display:flex;flex-direction:column;justify-content:center}
    .callout-copy h2{margin:10px 0 14px;font-size:34px;line-height:1.3;font-weight:850}
    .callout-copy p{margin:0;color:#d5e0d7;max-width:500px}
    .callout-copy .eyebrow{color:var(--lime)}
    .callout-copy .btn{margin-top:23px;width:max-content}

    .download-lite{padding-top:0}
    .download-card{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:34px 42px;border:1px solid var(--line);border-radius:var(--radius);background:#e8eee3}
    .download-card:after{content:"";position:absolute;width:220px;height:220px;right:-76px;top:-105px;border:26px solid rgba(18,59,50,.09);border-radius:50%}
    .download-copy{position:relative;z-index:1}
    .download-copy h2{margin:6px 0 8px;color:var(--green);font-size:30px;line-height:1.3;font-weight:850}
    .download-copy p{margin:0;color:var(--muted)}
    .download-actions{position:relative;z-index:1;display:flex;align-items:center;gap:15px;flex-wrap:wrap}
    .system-tags{display:flex;gap:7px;flex-wrap:wrap}
    .system-tags span{padding:4px 9px;border:1px solid #b7c8b9;border-radius:20px;color:var(--green);font-size:11px;font-weight:800}

    .footer{background:var(--green);color:#fff;padding:64px 0 24px}
    .footer .brand{color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr .9fr;gap:38px;padding-bottom:45px}
    .footer p{max-width:350px;margin:16px 0 0;color:#cedbd0;font-size:14px;line-height:1.7}
    .footer h3{font-size:14px;letter-spacing:.04em;margin:5px 0 16px;color:var(--lime);font-weight:850}
    .footer-links{display:grid;gap:9px}
    .footer-links a{width:max-content;color:#d8e2d9;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-qr{display:flex;gap:12px;align-items:center;color:#d8e2d9;font-size:13px;line-height:1.5}
    .qr{width:58px;height:58px;background-color:#fff;background-image:linear-gradient(90deg,transparent 44%,var(--green) 44% 56%,transparent 56%),linear-gradient(transparent 44%,var(--green) 44% 56%,transparent 56%);background-size:14px 14px;border:5px solid #fff}
    .copyright{padding-top:20px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:20px;color:#bfcfc2;font-size:12px}

    @media (max-width:1024px){
      .page-intro-grid,.focus-layout,.news-shell,.topic-layout,.basketball-grid,.data-callout-inner{grid-template-columns:1fr}
      .intro-note{max-width:620px}
      .schedule-panel{position:static}
      .topic-copy{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px;align-items:end}
      .football-track{grid-template-columns:repeat(3,1fr)}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:span 3}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--max))}
      .section{padding:62px 0}
      .nav{height:68px;gap:12px}
      .nav-download{display:none}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;padding:13px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);align-items:stretch;flex-direction:column}
      .nav-links.open{display:flex}
      .nav-links a{padding:11px 12px}
      .mobile-download{display:inline-flex!important;margin-top:5px}
      .page-intro{padding:42px 0 36px}
      .section-head{display:block;margin-bottom:25px}
      .section-head p{margin-top:10px}
      .section-head h2{font-size:28px}
      .focus-main{min-height:345px;padding:26px}
      .brief-stack{grid-template-columns:repeat(2,1fr)}
      .news-row{grid-template-columns:80px 1fr auto;gap:13px}
      .news-content h3{font-size:17px}
      .football-track{grid-template-columns:1fr 1fr}
      .story-card:last-child{grid-column:span 2;min-height:205px}
      .topic-copy{display:block}
      .basketball-list,.reading-grid{grid-template-columns:1fr 1fr}
      .callout-copy{padding:34px 28px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:span 2}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .container{width:min(calc(100% - 28px),var(--max))}
      .brand{font-size:15px}
      .brand-mark{width:28px;height:28px}
      h1{font-size:36px}
      .lead{font-size:16px}
      .brief-stack,.football-track,.basketball-list,.reading-grid{grid-template-columns:1fr}
      .brief-card{min-height:174px}
      .story-card:last-child{grid-column:auto}
      .news-row{grid-template-columns:1fr auto;gap:10px;padding:19px 0}
      .news-date{grid-column:span 2}
      .news-row:hover{padding-left:6px;padding-right:6px}
      .news-content p{font-size:13px}
      .round-arrow{width:34px;height:34px}
      .basketball-card{grid-template-columns:52px 1fr;padding:17px}
      .ball-icon{width:52px;height:52px}
      .download-card{padding:28px 23px;display:block}
      .download-copy h2{font-size:26px}
      .download-actions{margin-top:20px;align-items:flex-start;flex-direction:column}
      .callout-visual{min-height:250px}
      .callout-copy h2{font-size:28px}
      .footer{padding-top:48px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:auto}
      .copyright{display:grid;gap:5px}
    }

/* roulang page: category3 */
:root{--ink:#171a18;--green:#123b32;--green2:#1b5546;--lime:#b8f23c;--paper:#f4f2ec;--mist:#dce4da;--white:#fff;--muted:#66716c;--line:#ced8cf;--radius:20px;--radius-sm:13px;--shadow:0 14px 30px rgba(18,59,50,.11);--max:1240px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    a:focus-visible,button:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--max));margin:auto}
    .section{padding:82px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--green)}
    .eyebrow:before{content:"";width:22px;height:3px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,62px);line-height:1.14;letter-spacing:-.04em;font-weight:850}
    h2{font-size:clamp(27px,3vw,42px);line-height:1.2;letter-spacing:-.03em;font-weight:850}
    h3{font-size:20px;line-height:1.35;font-weight:800}
    .lead{font-size:17px;color:var(--muted);max-width:680px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-head p{margin:0;color:var(--muted);max-width:520px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:11px;border:1px solid transparent;font-weight:800;transition:.22s ease;cursor:pointer}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--lime);color:#142412;box-shadow:0 10px 20px rgba(184,242,60,.18)}
    .btn-primary:hover{background:#cdf76c}
    .btn-dark{border-color:var(--green);color:var(--green)}
    .btn-dark:hover{background:var(--green);color:#fff}
    .arrow{font-size:20px;line-height:1}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(244,242,236,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(18,59,50,.1)}
    .nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:900;color:var(--green);white-space:nowrap}
    .brand-mark{position:relative;width:31px;height:31px;background:var(--green);border-radius:9px;overflow:hidden;display:inline-block}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:2px solid var(--lime);border-radius:50%}
    .brand-mark:before{width:23px;height:23px;left:8px;top:-9px}
    .brand-mark:after{width:17px;height:17px;left:-7px;bottom:-5px}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:#405048;font-size:14px;font-weight:700;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--mist);color:var(--green)}
    .nav-download{min-height:42px;padding:0 16px;font-size:14px}
    .menu-toggle{display:none;border:0;background:transparent;font-size:26px;color:var(--green)}
    .page-intro{padding:58px 0 54px;background:#fff;border-bottom:1px solid var(--line)}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:end}
    .page-intro h1{max-width:760px;margin:14px 0 18px}
    .intro-note{background:var(--green);color:#fff;border-radius:18px;padding:25px 28px;position:relative;overflow:hidden}
    .intro-note:after{content:"03";position:absolute;right:18px;bottom:-22px;font-size:100px;line-height:1;color:rgba(184,242,60,.15);font-weight:900}
    .intro-note b{color:var(--lime);font-size:28px;display:block}
    .intro-note span{display:block;color:#d6e2d8;margin-top:4px}
    .anchor-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .anchor-nav a{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;display:flex;align-items:center;gap:14px;font-weight:800;transition:.2s}
    .anchor-nav a:hover{border-color:var(--green);box-shadow:var(--shadow);transform:translateY(-2px)}
    .anchor-nav strong{color:var(--green);font-size:22px}
    .tutorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .tutorial-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:25px;min-height:230px;display:flex;flex-direction:column;transition:.22s}
    .tutorial-card:hover{border-color:#94b79d;box-shadow:var(--shadow);transform:translateY(-3px)}
    .card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}
    .number{color:var(--green);font:800 25px/1 Georgia,serif}
    .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:var(--mist);color:var(--green);font-size:12px;font-weight:800}
    .tutorial-card h3{margin-bottom:8px}
    .tutorial-card p{color:var(--muted);font-size:14px;margin-bottom:18px}
    .card-link{margin-top:auto;color:var(--green);font-weight:800;font-size:14px}
    .path-section{background:var(--green);color:#fff}
    .path-section .eyebrow{color:var(--lime)}
    .path-section .section-head p{color:#d4e0d7}
    .path{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(255,255,255,.2)}
    .path-item{padding:27px 25px 12px;border-right:1px solid rgba(255,255,255,.2);position:relative}
    .path-item:last-child{border:0}
    .path-item:before{content:"";position:absolute;top:-6px;left:25px;width:11px;height:11px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(184,242,60,.14)}
    .path-item b{display:block;color:var(--lime);font-size:13px;margin-bottom:13px}
    .path-item h3{margin-bottom:8px}
    .path-item p{color:#c9d9ce;font-size:14px;margin:0}
    .update-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px 32px;box-shadow:var(--shadow)}
    .update-row{display:grid;grid-template-columns:145px 150px 1fr 150px;gap:24px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
    .update-row:last-child{border-bottom:0}
    .version{font-size:23px;font-weight:900;color:var(--green)}
    .date{color:var(--muted);font-size:14px}
    .update-row p{margin:0;color:#4e5d54;font-size:14px}
    .compat{display:flex;gap:9px;flex-wrap:wrap;margin-top:25px}
    .compat span{padding:7px 12px;border:1px solid var(--line);border-radius:8px;color:var(--green);font-size:13px;font-weight:700}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-item summary{cursor:pointer;list-style:none;padding:20px 4px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";font-size:25px;color:var(--green);line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 45px 20px 4px;color:var(--muted);font-size:15px}
    .screen-info{display:grid;grid-template-columns:.75fr 1.25fr;gap:25px;align-items:stretch}
    .screen-visual{background:var(--green);border-radius:20px;min-height:320px;padding:28px;color:#fff;position:relative;overflow:hidden}
    .screen-visual:before{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(184,242,60,.3);border-radius:50%;right:-70px;top:-70px}
    .mini-phone{width:170px;height:260px;border:7px solid #273f36;border-radius:24px;background:#f8faf5;margin:18px auto 0;padding:14px;color:var(--green);position:relative;z-index:1;box-shadow:0 15px 25px rgba(0,0,0,.2)}
    .mini-phone:before{content:"";display:block;width:42px;height:5px;background:#b7c8b8;border-radius:5px;margin:0 auto 15px}
    .mini-line{height:10px;background:var(--mist);border-radius:4px;margin:9px 0}
    .mini-line.dark{width:70%;background:var(--green)}
    .info-points{display:grid;gap:12px}
    .info-point{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px 23px;display:flex;gap:16px;align-items:flex-start}
    .info-point i{font-style:normal;background:var(--lime);color:var(--green);width:32px;height:32px;border-radius:9px;display:grid;place-items:center;font-weight:900}
    .info-point h3{font-size:17px;margin-bottom:4px}
    .info-point p{font-size:14px;color:var(--muted);margin:0}
    .download-cta{background:var(--green);color:#fff;border-radius:22px;padding:38px 45px;display:flex;justify-content:space-between;align-items:center;gap:25px;position:relative;overflow:hidden}
    .download-cta:after{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(184,242,60,.2);border-radius:50%;right:-125px;top:-160px}
    .download-cta h2{margin-bottom:10px}
    .download-cta p{color:#d4e0d7;margin:0}
    .footer{background:var(--green);color:#fff;padding:62px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
    .footer .brand{color:#fff;margin-bottom:16px}
    .footer p{color:#c8d7cc;font-size:14px;max-width:320px}
    .footer h3{font-size:15px;color:var(--lime);margin-bottom:15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:14px;color:#d4e0d7;transition:.2s}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-qr{display:flex;align-items:center;gap:13px;color:#c8d7cc;font-size:13px}
    .qr{width:66px;height:66px;background-color:#fff;background-image:linear-gradient(45deg,#123b32 25%,transparent 25%,transparent 75%,#123b32 75%),linear-gradient(45deg,#123b32 25%,transparent 25%,transparent 75%,#123b32 75%);background-size:14px 14px;background-position:0 0,7px 7px;border:6px solid #fff}
    .copyright{border-top:1px solid rgba(255,255,255,.18);padding-top:20px;margin-top:45px;display:flex;justify-content:space-between;gap:20px;color:#b7c9bb;font-size:12px}
    @media(max-width:960px){.nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:13px}.intro-grid,.screen-info{grid-template-columns:1fr}.tutorial-grid{grid-template-columns:repeat(2,1fr)}.path{grid-template-columns:repeat(2,1fr)}.path-item:nth-child(2){border-right:0}.path-item:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.2)}.update-row{grid-template-columns:130px 120px 1fr}.update-row .tag{grid-column:3}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
    @media(max-width:768px){.container{width:min(calc(100% - 34px),var(--max))}.nav{height:68px}.nav-download{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:13px 17px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-links .mobile-download{display:flex;margin-top:8px}.section{padding:60px 0}.page-intro{padding:43px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}.anchor-nav{grid-template-columns:repeat(2,1fr)}.download-cta{padding:30px 25px;display:block}.download-cta .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:6px}}
    @media(max-width:520px){h1{font-size:36px}.tutorial-grid,.path{grid-template-columns:1fr}.anchor-nav{grid-template-columns:1fr}.path-item{border-right:0!important;border-bottom:1px solid rgba(255,255,255,.2)!important}.path-item:last-child{border-bottom:0!important}.update-panel{padding:18px}.update-row{grid-template-columns:1fr 1fr;gap:8px}.update-row p{grid-column:1/-1}.update-row .tag{grid-column:auto}.footer-grid{grid-template-columns:1fr}.footer{padding-top:45px}.screen-visual{min-height:285px}}