/* roulang page: index */
:root{
 --ink:#241d2d;--deep:#30233b;--deep-2:#412e4e;--green:#39a889;--green-dark:#247f6d;
 --apricot:#e7a065;--cream:#fbf8f3;--mist:#f1edf3;--line:#ded6e2;--muted:#756b7b;
 --white:#fff;--radius:16px;--shadow:0 14px 38px rgba(45,31,55,.09);--max:1220px
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:rgba(48,35,59,.98);color:#fff;display:flex;align-items:center;position:sticky;top:0;z-index:20;box-shadow:0 5px 18px rgba(28,19,34,.12)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:12px;min-width:225px;font-weight:800;letter-spacing:.02em}
.logo-mark{width:38px;height:38px;border:2px solid var(--green);border-radius:11px;display:grid;place-items:center;color:var(--green);font-size:14px}
.logo-text{font-size:16px;white-space:nowrap}
.logo-text small{display:block;color:#bdb2c4;font-size:11px;font-weight:400;line-height:1.2;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:25px 13px 21px;color:#d8cfdd;font-size:14px;position:relative;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.active:after{content:"";position:absolute;bottom:12px;left:13px;right:13px;height:3px;background:var(--green);border-radius:3px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:10px;font-weight:700;font-size:14px;transition:.25s;border:1px solid transparent}
.btn-primary{background:var(--apricot);color:#352438}
.btn-primary:hover{background:#f1b477;transform:translateY(-2px);box-shadow:0 8px 18px rgba(231,160,101,.25)}
.btn-outline{border-color:#b9aabe;color:#fff}
.btn-outline:hover{border-color:var(--green);color:#b7f1e0}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-dark);transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
.hero{background:var(--deep);color:#fff;min-height:600px;display:flex;align-items:center;overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(57,168,137,.25);border-radius:50%;right:-140px;top:-130px}
.hero:after{content:"";position:absolute;width:680px;height:1px;background:rgba(231,160,101,.35);right:-100px;bottom:105px;transform:rotate(-25deg)}
.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:60px;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:#9fe1cf;font-size:13px;font-weight:700;margin-bottom:20px}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--apricot)}
.hero h1{font-size:clamp(40px,5vw,70px);line-height:1.15;letter-spacing:-.04em;max-width:650px}
.hero h1 em{font-style:normal;color:#a8ead9}
.hero-lead{color:#d1c7d7;max-width:580px;font-size:17px;margin:23px 0 30px}
.actions{display:flex;flex-wrap:wrap;gap:13px}
.stage-art{height:390px;position:relative}
.stage-card{position:absolute;background:#493653;border:1px solid rgba(255,255,255,.15);border-radius:18px;box-shadow:0 25px 45px rgba(18,10,25,.3)}
.stage-card.main{width:330px;height:360px;right:25px;top:8px;padding:25px}
.stage-card.small{width:190px;height:145px;left:0;bottom:20px;padding:20px;background:#3b806f}
.stage-line{height:7px;background:#78637f;border-radius:10px;margin:13px 0}
.stage-line.short{width:63%}
.stage-title{font-size:21px;font-weight:800;margin:20px 0;color:#fff}
.stage-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:25px}
.stage-tile{height:82px;background:#5a4261;border-radius:10px;padding:12px;color:#cfc3d4;font-size:12px}
.stage-tile b{display:block;color:#fff;font-size:17px;margin-bottom:5px}
.section{padding:92px 0}
.section.alt{background:var(--mist)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:35px}
.section-head h2{font-size:32px;line-height:1.3;letter-spacing:-.03em}
.section-head p{max-width:540px;color:var(--muted);font-size:15px}
.kicker{color:var(--green-dark);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:9px}
.signal-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:-1px}
.signal{background:var(--white);padding:28px 30px}
.signal strong{display:block;font-size:22px;color:var(--deep);margin-bottom:5px}
.signal span{font-size:13px;color:var(--muted)}
.feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.feature-card,.news-card,.notice-box,.story-box,.guide-box,.faq-box,.contact-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.feature-card{min-height:300px;padding:35px;background:linear-gradient(135deg,#eee4ef,#fff);position:relative;overflow:hidden}
.feature-card:after{content:"NG28";position:absolute;right:-16px;bottom:-38px;font-size:120px;font-weight:900;color:rgba(57,168,137,.1)}
.feature-card h3{font-size:27px;max-width:450px;position:relative;z-index:1}
.feature-card p{max-width:480px;color:var(--muted);margin:16px 0 25px;position:relative;z-index:1}
.mini-list{display:grid;gap:12px}
.news-card{padding:22px;display:grid;gap:10px}
.meta{display:flex;align-items:center;gap:10px;color:#8b7f90;font-size:12px}
.badge{display:inline-flex;padding:3px 9px;background:#e4f5ef;color:var(--green-dark);border-radius:5px;font-size:11px;font-weight:700}
.news-card h3{font-size:17px;line-height:1.45}
.news-card p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.text-link{color:var(--green-dark);font-weight:700;font-size:13px}
.text-link:hover{color:var(--apricot)}
.timeline{border-left:2px solid #cce8df;margin-left:10px;padding-left:27px;display:grid;gap:25px}
.timeline-item{position:relative}
.timeline-item:before{content:"";position:absolute;width:10px;height:10px;background:var(--green);border:3px solid var(--cream);border-radius:50%;left:-34px;top:8px;box-shadow:0 0 0 1px var(--green)}
.timeline-item time{font-size:12px;color:var(--green-dark);font-weight:700}
.timeline-item h3{font-size:18px;margin:4px 0}
.timeline-item p{font-size:14px;color:var(--muted)}
.notice-box{padding:25px 30px;display:flex;align-items:center;gap:20px;background:#fffaf2;border-color:#efdfc8}
.notice-icon{width:43px;height:43px;border-radius:12px;background:var(--apricot);display:grid;place-items:center;font-weight:900;color:#513327}
.notice-box h3{font-size:17px}.notice-box p{color:var(--muted);font-size:13px}
.download-panel{background:var(--deep);color:#fff;border-radius:22px;padding:48px 55px;display:grid;grid-template-columns:1fr .8fr;align-items:center;overflow:hidden}
.download-panel h2{font-size:35px;line-height:1.3}.download-panel p{color:#d5cbd9;margin:14px 0 24px;max-width:500px}
.version{color:#a6dccc;font-size:12px;margin-top:13px}
.device-stack{height:210px;position:relative}.device{position:absolute;background:#faf8f4;border-radius:17px;border:5px solid #1f1728;width:135px;height:220px;top:-5px;box-shadow:0 15px 25px #17101e}.device:first-child{right:120px;transform:rotate(-8deg)}.device:last-child{right:25px;transform:rotate(8deg);background:#e8f3ef}.screen-bar{height:18px;background:var(--green);margin:24px 12px 15px;border-radius:5px}.screen-row{height:10px;background:#ded5e1;margin:10px 13px;border-radius:4px}.screen-row.wide{height:48px;background:#c6e7de}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{padding:27px 24px;position:relative}.step:not(:last-child){border-right:1px solid var(--line)}.step-num{color:var(--apricot);font-size:13px;font-weight:900}.step h3{font-size:17px;margin:8px 0 5px}.step p{font-size:13px;color:var(--muted)}
.topic-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:17px}.topic{min-height:230px;padding:28px;border-radius:var(--radius);color:#fff;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}.topic:first-child{background:#3b806f}.topic:nth-child(2){background:#6b4a6e}.topic:nth-child(3){background:#bd7951}.topic:before{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.22);border-radius:50%;right:-55px;top:-45px}.topic h3,.topic p{position:relative}.topic h3{font-size:21px}.topic p{font-size:13px;color:rgba(255,255,255,.78);margin-top:6px}
.content-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.content-main{padding:33px;min-height:260px;background:var(--deep);color:#fff;border-radius:var(--radius)}.content-main h3{font-size:27px;max-width:560px}.content-main p{color:#d5cbd9;margin:15px 0}.content-side{display:grid;gap:14px}.side-item{background:#fff;border:1px solid var(--line);padding:20px;border-radius:13px}.side-item h3{font-size:16px}.side-item p{font-size:13px;color:var(--muted);margin-top:5px}
.story-box{padding:35px}.story-track{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.story-track div{border-top:3px solid var(--green);padding-top:15px}.story-track b{font-size:24px;color:var(--deep)}.story-track p{font-size:13px;color:var(--muted);margin-top:8px}
.guide-box{padding:33px;display:grid;grid-template-columns:.8fr 1.2fr;gap:30px}.guide-box h2{font-size:27px}.guide-box p{color:var(--muted)}.guide-points{display:grid;grid-template-columns:1fr 1fr;gap:14px}.guide-points div{background:var(--mist);padding:17px;border-radius:11px}.guide-points strong{display:block;font-size:15px}.guide-points span{font-size:12px;color:var(--muted)}
.faq-list{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;padding:20px 5px;background:none;text-align:left;display:flex;justify-content:space-between;font-weight:700;color:var(--ink)}.faq-q span{color:var(--green);font-size:22px}.faq-a{display:none;padding:0 35px 20px 5px;color:var(--muted);font-size:14px}.faq-item.open .faq-a{display:block}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:25px}.contact-box{padding:32px}.contact-box h2{font-size:27px}.contact-box p{color:var(--muted);margin-top:10px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field textarea{width:100%;border:1px solid var(--line);background:#fbf9fc;border-radius:9px;padding:12px 13px;outline:none}.field textarea{min-height:105px;resize:vertical}.field input:focus,.field textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(57,168,137,.12)}.form-note{font-size:11px;color:#8b7f90;margin-top:10px}.form-status{font-size:13px;color:var(--green-dark);margin-top:10px;display:none}
.bottom-cta{background:#eee4ef;padding:52px 0}.cta-row{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta-row h2{font-size:29px}.cta-row p{color:var(--muted);margin-top:5px}
.site-footer{background:var(--deep);color:#fff;padding:55px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.14)}.footer-brand p{color:#b9aebe;font-size:13px;max-width:280px;margin-top:13px}.footer-title{font-weight:700;margin-bottom:13px}.footer-links{display:grid;gap:8px}.footer-links a{color:#b9aebe;font-size:13px}.footer-links a:hover{color:#a7e6d4}.copyright{display:flex;justify-content:space-between;gap:20px;color:#9f93a5;font-size:12px;padding-top:20px}.mobile-nav{display:none}
@media(max-width:1024px){.nav-links a{padding-left:7px;padding-right:7px}.logo{min-width:195px}.hero-grid{gap:25px}.download-panel{padding:40px}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr)}}
@media(max-width:768px){.container{width:min(100% - 34px,var(--max))}.site-header{height:68px}.logo-text{font-size:14px}.logo-mark{width:34px;height:34px}.nav-links{display:none}.menu-toggle{display:block}.nav-wrap>.btn{margin-left:auto;min-height:40px;padding:0 13px;font-size:12px}.mobile-nav{position:absolute;display:none;top:68px;left:0;right:0;background:var(--deep-2);padding:15px 18px 22px;box-shadow:0 12px 20px rgba(0,0,0,.15)}.mobile-nav.open{display:grid}.mobile-nav a{padding:10px 4px;border-bottom:1px solid rgba(255,255,255,.1);color:#e7deea}.hero{min-height:auto;padding:72px 0 64px}.hero-grid{grid-template-columns:1fr}.stage-art{height:260px}.stage-card.main{width:260px;height:270px;right:12px}.stage-card.small{width:145px;height:110px;bottom:5px}.section{padding:65px 0}.section-head{display:block}.section-head p{margin-top:12px}.signal-bar{grid-template-columns:1fr 1fr}.feature-layout,.content-grid,.contact-grid,.guide-box,.download-panel{grid-template-columns:1fr}.topic-grid{grid-template-columns:1fr 1fr}.topic:first-child{grid-column:1/-1}.steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}.device-stack{margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:7px}.cta-row{display:block}.cta-row .btn{margin-top:20px}}
@media(max-width:520px){.hero h1{font-size:39px}.hero-lead{font-size:15px}.actions .btn{width:100%}.signal{padding:20px 16px}.signal strong{font-size:18px}.feature-card{padding:25px}.feature-card h3{font-size:23px}.topic-grid,.steps,.form-grid,.guide-points{grid-template-columns:1fr}.topic:first-child{grid-column:auto}.step:not(:last-child){border-right:0;border-bottom:1px solid var(--line)}.download-panel{padding:32px 24px}.download-panel h2{font-size:28px}.device-stack{transform:scale(.85);transform-origin:left top;margin-bottom:-25px}.story-track{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.logo-text small{display:none}}

/* roulang page: article */
:root{
 --ink:#241d2d;--deep:#30233b;--deep-2:#412e4e;--green:#39a889;--green-dark:#247f6d;
 --apricot:#e7a065;--cream:#fbf8f3;--mist:#f1edf3;--line:#ded6e2;--muted:#756b7b;
 --white:#fff;--radius:16px;--shadow:0 14px 38px rgba(45,31,55,.09);--max:1220px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.75}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid rgba(57,168,137,.38);outline-offset:3px}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:rgba(48,35,59,.98);color:#fff;display:flex;align-items:center;position:sticky;top:0;z-index:20;box-shadow:0 5px 18px rgba(28,19,34,.12)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:12px;min-width:225px;font-weight:800;letter-spacing:.02em}
.logo-mark{width:38px;height:38px;border:2px solid var(--green);border-radius:11px;display:grid;place-items:center;color:var(--green);font-size:14px}
.logo-text{font-size:16px;white-space:nowrap}
.logo-text small{display:block;color:#bdb2c4;font-size:11px;font-weight:400;line-height:1.2;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:25px 13px 21px;color:#d8cfdd;font-size:14px;position:relative;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.active:after{content:"";position:absolute;bottom:12px;left:13px;right:13px;height:3px;background:var(--green);border-radius:3px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:10px;font-weight:700;font-size:14px;transition:.25s;border:1px solid transparent}
.btn-primary{background:var(--apricot);color:#352438}
.btn-primary:hover{background:#f1b477;transform:translateY(-2px);box-shadow:0 8px 18px rgba(231,160,101,.25)}
.btn-outline{border-color:#b9aabe;color:#fff}
.btn-outline:hover{border-color:var(--green);color:#b7f1e0}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-dark);transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
.article-hero{background:var(--deep);color:#fff;padding:78px 0 74px;position:relative;overflow:hidden}
.article-hero:before{content:"";position:absolute;width:460px;height:460px;border:1px solid rgba(57,168,137,.24);border-radius:50%;right:-150px;top:-250px}
.article-hero:after{content:"";position:absolute;width:570px;height:1px;background:rgba(231,160,101,.35);right:-80px;bottom:70px;transform:rotate(-22deg)}
.breadcrumbs{position:relative;z-index:1;color:#bdb2c4;font-size:13px;margin-bottom:25px}
.breadcrumbs a{color:#a8ead9}
.breadcrumbs span{margin:0 9px;color:#81718a}
.article-hero h1{position:relative;z-index:1;font-size:clamp(32px,4vw,56px);line-height:1.25;letter-spacing:-.04em;max-width:900px;margin:0}
.article-summary{position:relative;z-index:1;max-width:790px;color:#d5cbd9;font-size:17px;margin:23px 0 28px}
.article-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px 22px;color:#bdb2c4;font-size:13px}
.article-meta strong{color:#a8ead9;font-weight:700}
.badge{display:inline-flex;padding:3px 9px;background:#e4f5ef;color:var(--green-dark);border-radius:5px;font-size:11px;font-weight:700}
.section{padding:82px 0}
.section.alt{background:var(--mist)}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:42px;align-items:start}
.article-body{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:clamp(26px,4vw,56px)}
.article-body h2{font-size:29px;line-height:1.4;margin:35px 0 17px;color:var(--deep)}
.article-body h3{font-size:21px;line-height:1.45;margin:28px 0 12px;color:var(--deep)}
.article-body p{font-size:16px;color:#4d4352;margin:0 0 20px}
.article-body ul,.article-body ol{padding-left:25px;margin:14px 0 24px;color:#4d4352}
.article-body li{padding:4px 0}
.article-body blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--green);background:#eef8f4;color:#4b665e;border-radius:0 10px 10px 0}
.article-body img{border-radius:12px;margin:25px auto}
.article-body figure{margin:28px 0}
.article-body figcaption{text-align:center;color:var(--muted);font-size:13px;margin-top:-15px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 13px;text-align:left}
.article-body th{background:var(--mist);color:var(--deep)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.article-sidebar{position:sticky;top:104px}
.side-box,.feedback-box,.related-card,.faq-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.side-box{padding:23px;margin-bottom:17px}
.side-title{font-size:17px;font-weight:800;color:var(--deep);margin-bottom:15px}
.side-list{display:grid;gap:11px}
.side-list a{font-size:14px;color:var(--muted);padding-bottom:10px;border-bottom:1px solid #eee8ef;transition:.2s}
.side-list a:hover{color:var(--green-dark);padding-left:4px}
.article-tools{display:flex;justify-content:space-between;gap:16px;align-items:center;border-top:1px solid var(--line);margin-top:34px;padding-top:23px;color:var(--muted);font-size:13px}
.copy-btn{background:#f0ebf2;color:var(--deep);border-radius:8px;padding:8px 13px;font-size:12px;transition:.2s}
.copy-btn:hover{background:#dff2eb;color:var(--green-dark)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
.section-head h2{font-size:31px;line-height:1.3;letter-spacing:-.03em;margin:0}
.section-head p{max-width:540px;color:var(--muted);font-size:15px;margin:0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{padding:24px;transition:.25s}
.related-card:hover{transform:translateY(-4px);border-color:#afdcca;box-shadow:0 18px 40px rgba(45,31,55,.13)}
.related-card h3{font-size:18px;line-height:1.45;margin:14px 0 9px}
.related-card p{font-size:14px;color:var(--muted);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;gap:10px;color:#8b7f90;font-size:12px}
.text-link{color:var(--green-dark);font-weight:700;font-size:13px}
.text-link:hover{color:var(--apricot)}
.faq-list{display:grid;gap:12px;max-width:850px;margin:auto}
.faq-box{overflow:hidden}
.faq-box summary{list-style:none;cursor:pointer;padding:19px 22px;font-weight:700;color:var(--deep);display:flex;justify-content:space-between;gap:20px}
.faq-box summary::-webkit-details-marker{display:none}
.faq-box summary:after{content:"＋";color:var(--green);font-size:21px;line-height:1}
.faq-box[open] summary:after{content:"−"}
.faq-answer{padding:0 22px 20px;color:var(--muted);font-size:14px;border-top:1px solid #eee8ef}
.feedback-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch}
.feedback-intro{background:var(--deep);color:#fff;border-radius:var(--radius);padding:35px}
.feedback-intro h2{font-size:29px;line-height:1.35;margin:0 0 15px}
.feedback-intro p{color:#d5cbd9;font-size:15px}
.feedback-points{display:grid;gap:10px;margin-top:25px;color:#cbeee3;font-size:14px}
.feedback-points span:before{content:"✓";color:var(--apricot);margin-right:9px}
.feedback-box{padding:30px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:700;color:var(--deep)}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);background:#fcfafc;border-radius:9px;padding:11px 13px;color:var(--ink);transition:.2s}
.field textarea{min-height:115px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(57,168,137,.12);outline:0}
.form-note{font-size:12px;color:var(--muted);margin:14px 0 18px}
.empty-state{padding:42px;text-align:center;border:1px dashed #cdbfd2;border-radius:14px;color:var(--muted);background:#fcfafc}
.cta-strip{background:var(--deep-2);color:#fff;padding:38px 0}
.cta-content{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta-content h2{font-size:27px;margin:0 0 5px}
.cta-content p{color:#d5cbd9;margin:0;font-size:14px}
.site-footer{background:var(--deep);color:#fff;padding:58px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px}
.footer-brand p{max-width:310px;color:#bdb2c4;font-size:13px;margin:16px 0 0}
.footer-title{font-size:14px;font-weight:800;margin:4px 0 14px}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#bdb2c4;font-size:13px;transition:.2s}
.footer-links a:hover{color:#a8ead9;padding-left:3px}
.copyright{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:19px;color:#96899d;font-size:12px}
@media(max-width:1024px){
 .nav-links a{padding-left:8px;padding-right:8px;font-size:13px}
 .logo{min-width:200px}
 .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:24px}
}
@media(max-width:768px){
 .site-header{height:70px}
 .container{width:min(var(--max),calc(100% - 32px))}
 .nav-wrap{gap:12px}
 .logo{min-width:0}
 .logo-text{font-size:14px}
 .logo-text small{font-size:10px}
 .nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;background:var(--deep);padding:10px;border-radius:0 0 13px 13px;box-shadow:0 15px 25px rgba(28,19,34,.2);flex-direction:column;align-items:stretch}
 .nav-links.open{display:flex}
 .nav-links a{padding:13px 15px;border-bottom:1px solid rgba(255,255,255,.08)}
 .nav-links a.active:after{left:15px;right:auto;width:28px;bottom:7px}
 .menu-toggle{display:block}
 .nav-wrap>.btn{min-height:40px;padding:0 13px;font-size:12px}
 .article-hero{padding:52px 0 50px}
 .article-hero h1{font-size:34px}
 .article-summary{font-size:15px}
 .article-layout{display:block}
 .article-sidebar{position:static;margin-top:20px}
 .section{padding:58px 0}
 .section-head{display:block}
 .section-head h2{font-size:27px;margin-bottom:9px}
 .related-grid{grid-template-columns:1fr}
 .feedback-wrap{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .footer-brand{grid-column:1/-1}
 .cta-content{display:block}
 .cta-content .btn{margin-top:20px}
}
@media(max-width:520px){
 .logo-mark{width:34px;height:34px;font-size:12px}
 .logo-text{font-size:12px}
 .logo-text small{font-size:9px}
 .nav-wrap>.btn{display:none}
 .article-body{padding:23px 18px}
 .article-body h2{font-size:24px}
 .article-body p{font-size:15px}
 .article-tools{display:block}
 .copy-btn{margin-top:12px}
 .form-grid{grid-template-columns:1fr}
 .field.full{grid-column:auto}
 .feedback-box,.feedback-intro{padding:24px 20px}
 .footer-grid{grid-template-columns:1fr}
 .copyright{display:block}
 .copyright span{display:block;margin-bottom:6px}
}

/* roulang page: category2 */
:root{
 --ink:#241d2d;--deep:#30233b;--deep-2:#412e4e;--green:#39a889;--green-dark:#247f6d;
 --apricot:#e7a065;--cream:#fbf8f3;--mist:#f1edf3;--line:#ded6e2;--muted:#756b7b;
 --white:#fff;--radius:16px;--shadow:0 14px 38px rgba(45,31,55,.09);--max:1220px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:rgba(48,35,59,.98);color:#fff;display:flex;align-items:center;position:sticky;top:0;z-index:20;box-shadow:0 5px 18px rgba(28,19,34,.12)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:12px;min-width:225px;font-weight:800;letter-spacing:.02em}
.logo-mark{width:38px;height:38px;border:2px solid var(--green);border-radius:11px;display:grid;place-items:center;color:var(--green);font-size:14px}
.logo-text{font-size:16px;white-space:nowrap}
.logo-text small{display:block;color:#bdb2c4;font-size:11px;font-weight:400;line-height:1.2;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:25px 13px 21px;color:#d8cfdd;font-size:14px;position:relative;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.active:after{content:"";position:absolute;bottom:12px;left:13px;right:13px;height:3px;background:var(--green);border-radius:3px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:10px;font-weight:700;font-size:14px;transition:.25s;border:1px solid transparent}
.btn-primary{background:var(--apricot);color:#352438}
.btn-primary:hover{background:#f1b477;transform:translateY(-2px);box-shadow:0 8px 18px rgba(231,160,101,.25)}
.btn-outline{border-color:#b9aabe;color:#fff}
.btn-outline:hover{border-color:var(--green);color:#b7f1e0}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-dark);transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
.page-hero{background:var(--deep);color:#fff;padding:76px 0 82px;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(57,168,137,.24);border-radius:50%;right:-180px;top:-260px}
.page-hero:after{content:"";position:absolute;width:520px;height:1px;background:rgba(231,160,101,.45);right:-60px;bottom:55px;transform:rotate(-19deg)}
.hero-inner{position:relative;z-index:1;max-width:850px}
.crumbs{display:flex;gap:9px;align-items:center;color:#bdb2c4;font-size:13px;margin-bottom:25px}
.crumbs a:hover{color:#a8ead9}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:#9fe1cf;font-size:13px;font-weight:700;margin-bottom:16px}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--apricot)}
.page-hero h1{font-size:clamp(38px,5vw,64px);line-height:1.18;letter-spacing:-.04em;margin:0 0 20px}
.page-hero p{color:#d1c7d7;font-size:17px;max-width:720px;margin:0}
.section{padding:84px 0}
.section.alt{background:var(--mist)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
.section-head h2{font-size:32px;line-height:1.3;letter-spacing:-.03em;margin:0}
.section-head p{max-width:540px;color:var(--muted);font-size:15px;margin:0}
.intro-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 32px;display:flex;justify-content:space-between;gap:28px;align-items:center}
.intro-panel strong{font-size:19px}
.intro-panel p{color:var(--muted);margin:6px 0 0}
.topic-tags{display:flex;flex-wrap:wrap;gap:9px;justify-content:flex-end}
.badge{display:inline-flex;padding:4px 10px;background:#e4f5ef;color:var(--green-dark);border-radius:5px;font-size:11px;font-weight:700;white-space:nowrap}
.news-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}
.news-feature{background:var(--deep);color:#fff;border-radius:var(--radius);padding:36px;min-height:330px;position:relative;overflow:hidden}
.news-feature:after{content:"资讯";position:absolute;right:-5px;bottom:-35px;color:rgba(255,255,255,.06);font-size:130px;font-weight:900}
.news-feature>*{position:relative;z-index:1}
.news-feature h3{font-size:28px;line-height:1.35;margin:25px 0 12px;max-width:520px}
.news-feature p{color:#d5cbd9;max-width:520px}
.news-feature .badge{background:rgba(57,168,137,.2);color:#a8ead9}
.news-list{display:grid;gap:12px}
.news-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:21px 23px;transition:.25s}
.news-item:hover{transform:translateY(-3px);border-color:var(--green);box-shadow:var(--shadow)}
.news-item h3{font-size:18px;line-height:1.45;margin:8px 0 4px}
.news-item p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;gap:10px;color:#8b7f90;font-size:12px}
.index-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.index-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:25px;min-height:190px}
.index-card .number{color:var(--apricot);font-size:28px;font-weight:800;line-height:1}
.index-card h3{font-size:19px;margin:17px 0 7px}
.index-card p{color:var(--muted);font-size:14px;margin:0}
.timeline{border-left:2px solid #c9e5dc;padding-left:31px;display:grid;gap:28px;max-width:850px}
.timeline-item{position:relative}
.timeline-item:before{content:"";position:absolute;width:11px;height:11px;background:var(--green);border:3px solid var(--cream);border-radius:50%;left:-38px;top:9px;box-shadow:0 0 0 1px var(--green)}
.timeline-item time{font-size:12px;color:var(--green-dark);font-weight:700}
.timeline-item h3{font-size:20px;margin:4px 0}
.timeline-item p{font-size:14px;color:var(--muted);margin:0}
.theme-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.theme-tag{border:1px solid var(--line);background:#fff;border-radius:10px;padding:15px 16px;color:var(--deep-2);font-weight:700;transition:.25s}
.theme-tag:hover{border-color:var(--green);color:var(--green-dark);transform:translateY(-2px)}
.notice-box{padding:28px 32px;background:#fffaf4;border-left:4px solid var(--apricot)}
.notice-box h3{font-size:21px;margin:0 0 8px}
.notice-box p{color:var(--muted);margin:0}
.faq-list{max-width:900px}
.faq-item{border-bottom:1px solid var(--line);background:#fff}
.faq-item:first-child{border-radius:13px 13px 0 0}
.faq-item:last-child{border-radius:0 0 13px 13px;border-bottom:0}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;padding:20px 23px;background:transparent;color:var(--ink);font-weight:700}
.faq-question span:last-child{color:var(--green);font-size:24px;font-weight:400}
.faq-answer{display:none;padding:0 23px 20px;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{display:block}
.cta-band{background:var(--deep-2);color:#fff;padding:46px 0}
.cta-flex{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta-flex h2{font-size:28px;margin:0 0 6px}
.cta-flex p{color:#d2c6d7;margin:0}
.site-footer{background:var(--deep);color:#fff;padding:56px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.footer-brand p{color:#bdb2c4;font-size:13px;max-width:300px;margin-top:18px}
.footer-title{font-weight:700;margin-bottom:15px}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#bdb2c4;font-size:13px;transition:.2s}
.footer-links a:hover{color:#a8ead9}
.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#9f91a7;font-size:12px}
@media(max-width:1024px){.nav-links a{padding-left:8px;padding-right:8px;font-size:13px}.logo{min-width:205px}.news-layout{grid-template-columns:1fr}.theme-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){
 .container{width:min(var(--max),calc(100% - 32px))}
 .site-header{height:68px}.nav-wrap{gap:12px}.logo{min-width:0}.logo-text{font-size:14px}.logo-text small{font-size:10px}
 .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--deep);padding:13px 16px 20px;flex-direction:column;align-items:stretch;box-shadow:0 12px 20px rgba(28,19,34,.2)}
 .nav-links.open{display:flex}.nav-links a{padding:12px 8px}.nav-links a.active:after{left:8px;right:auto;width:30px;bottom:5px}
 .menu-toggle{display:block}.header-action{display:none}
 .page-hero{padding:58px 0 64px}.page-hero h1{font-size:42px}.page-hero p{font-size:15px}
 .section{padding:62px 0}.section-head{display:block}.section-head h2{font-size:27px;margin-bottom:12px}
 .intro-panel,.cta-flex{display:block}.topic-tags{justify-content:flex-start;margin-top:20px}
 .index-list{grid-template-columns:1fr}.theme-grid{grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}
}
@media(max-width:520px){
 .theme-grid{grid-template-columns:1fr}.news-feature{padding:26px;min-height:280px}.news-feature h3{font-size:23px}
 .footer-grid{grid-template-columns:1fr}.page-hero h1{font-size:35px}.btn{width:100%;margin-top:18px}
}

/* roulang page: category1 */
:root{
 --ink:#241d2d;--deep:#30233b;--deep-2:#412e4e;--green:#39a889;--green-dark:#247f6d;
 --apricot:#e7a065;--cream:#fbf8f3;--mist:#f1edf3;--line:#ded6e2;--muted:#756b7b;
 --white:#fff;--radius:16px;--shadow:0 14px 38px rgba(45,31,55,.09);--max:1220px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:var(--cream);line-height:1.75}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(57,168,137,.35);outline-offset:3px}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:rgba(48,35,59,.98);color:#fff;display:flex;align-items:center;position:sticky;top:0;z-index:20;box-shadow:0 5px 18px rgba(28,19,34,.12)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:12px;min-width:225px;font-weight:800;letter-spacing:.02em}
.logo-mark{width:38px;height:38px;border:2px solid var(--green);border-radius:11px;display:grid;place-items:center;color:var(--green);font-size:14px}
.logo-text{font-size:16px;white-space:nowrap}
.logo-text small{display:block;color:#bdb2c4;font-size:11px;font-weight:400;line-height:1.2;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:25px 13px 21px;color:#d8cfdd;font-size:14px;position:relative;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.active:after{content:"";position:absolute;bottom:12px;left:13px;right:13px;height:3px;background:var(--green);border-radius:3px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:10px;font-weight:700;font-size:14px;transition:.25s;border:1px solid transparent}
.btn-primary{background:var(--apricot);color:#352438}
.btn-primary:hover{background:#f1b477;transform:translateY(-2px);box-shadow:0 8px 18px rgba(231,160,101,.25)}
.btn-outline{border-color:#b9aabe;color:#fff}
.btn-outline:hover{border-color:var(--green);color:#b7f1e0}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-dark);transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
.page-hero{background:var(--deep);color:#fff;padding:78px 0 86px;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(57,168,137,.28);border-radius:50%;right:-90px;top:-160px}
.page-hero:after{content:"";position:absolute;width:580px;height:1px;background:rgba(231,160,101,.4);right:-60px;bottom:65px;transform:rotate(-23deg)}
.breadcrumb{position:relative;z-index:1;color:#bdb3c5;font-size:13px;margin-bottom:30px}
.breadcrumb a:hover{color:#a8ead9}
.page-hero-content{max-width:790px;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:#9fe1cf;font-size:13px;font-weight:700;margin-bottom:17px}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--apricot)}
.page-hero h1{font-size:clamp(38px,5vw,64px);line-height:1.18;letter-spacing:-.04em;margin:0 0 20px}
.page-hero p{color:#d5cbd9;font-size:17px;max-width:680px;margin:0}
.section{padding:86px 0}
.section.alt{background:var(--mist)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
.section-head h2{font-size:32px;line-height:1.3;letter-spacing:-.03em;margin:0}
.section-head p{max-width:560px;color:var(--muted);font-size:15px;margin:0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.tag{display:inline-flex;padding:7px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--green-dark);font-size:13px;font-weight:700}
.update-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}
.feature-card,.update-card,.archive-card,.faq-box,.notice-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.feature-card{padding:36px;min-height:300px;background:linear-gradient(135deg,#eee4ef,#fff);position:relative;overflow:hidden}
.feature-card:after{content:"NG28";position:absolute;right:-18px;bottom:-34px;font-size:116px;font-weight:900;color:rgba(57,168,137,.1)}
.feature-card>*{position:relative;z-index:1}
.badge{display:inline-flex;padding:4px 10px;background:#e4f5ef;color:var(--green-dark);border-radius:5px;font-size:11px;font-weight:700}
.feature-card h3{font-size:27px;line-height:1.4;margin:20px 0 12px;max-width:500px}
.feature-card p{color:var(--muted);max-width:510px;margin:0 0 25px}
.update-list{display:grid;gap:13px}
.update-card{padding:22px 24px;display:grid;grid-template-columns:92px 1fr auto;align-items:center;gap:20px;transition:.25s}
.update-card:hover,.archive-card:hover{transform:translateY(-3px);border-color:#a9d8ca;box-shadow:0 18px 38px rgba(45,31,55,.12)}
.update-date{color:var(--green-dark);font-weight:800;font-size:13px;line-height:1.35}
.update-date span{display:block;color:var(--muted);font-weight:400;font-size:11px;margin-top:3px}
.update-card h3{font-size:17px;margin:0 0 4px;line-height:1.45}
.update-card p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.text-link{color:var(--green-dark);font-weight:700;font-size:13px;white-space:nowrap}
.text-link:hover{color:var(--apricot)}
.archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.archive-card{padding:26px;min-height:195px;transition:.25s}
.archive-icon{width:43px;height:43px;border-radius:12px;background:#e4f5ef;color:var(--green-dark);display:grid;place-items:center;font-weight:800;font-size:18px;margin-bottom:18px}
.archive-card h3{font-size:19px;margin:0 0 9px}
.archive-card p{font-size:14px;color:var(--muted);margin:0}
.notice-box{padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:var(--deep);color:#fff}
.notice-box h2{font-size:25px;margin:0 0 7px}
.notice-box p{color:#d5cbd9;margin:0;font-size:14px}
.notice-mark{width:54px;height:54px;border-radius:14px;background:rgba(57,168,137,.18);color:#9fe1cf;display:grid;place-items:center;font-size:24px;font-weight:800;flex:none}
.timeline{border-left:1px solid #c9bfce;margin:10px 0 0 14px;padding-left:35px;display:grid;gap:30px}
.timeline-item{position:relative}
.timeline-item:before{content:"";position:absolute;width:10px;height:10px;background:var(--green);border:3px solid var(--mist);border-radius:50%;left:-41px;top:8px;box-shadow:0 0 0 1px var(--green)}
.timeline-item time{font-size:12px;color:var(--green-dark);font-weight:700}
.timeline-item h3{font-size:19px;margin:5px 0}
.timeline-item p{font-size:14px;color:var(--muted);margin:0;max-width:700px}
.faq-list{display:grid;gap:11px;max-width:900px}
.faq-box{overflow:hidden}
.faq-box summary{list-style:none;cursor:pointer;padding:20px 24px;font-weight:700;position:relative;padding-right:55px}
.faq-box summary::-webkit-details-marker{display:none}
.faq-box summary:after{content:"+";position:absolute;right:23px;color:var(--green);font-size:24px;font-weight:400;top:14px}
.faq-box[open] summary:after{content:"−"}
.faq-answer{padding:0 24px 21px;color:var(--muted);font-size:14px}
.cta-band{padding:50px 0;background:#e8f3ef}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta-inner h2{margin:0 0 8px;font-size:28px}
.cta-inner p{margin:0;color:var(--muted)}
.site-footer{background:var(--deep);color:#fff;padding:58px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}
.footer-brand p{color:#bdb2c4;max-width:310px;font-size:13px;margin-top:17px}
.footer-title{font-weight:700;margin-bottom:15px}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#c9bfce;font-size:13px;transition:.2s}
.footer-links a:hover{color:#9fe1cf}
.copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#9f94a7;font-size:12px}
@media(max-width:1024px){
 .nav-links a{padding-left:8px;padding-right:8px;font-size:13px}
 .nav-links a.active:after{left:8px;right:8px}
 .logo{min-width:210px}
 .update-card{grid-template-columns:75px 1fr}
 .update-card .text-link{grid-column:2}
}
@media(max-width:768px){
 .container{width:min(var(--max),calc(100% - 32px))}
 .site-header{height:70px}
 .logo{min-width:0}
 .logo-text{font-size:14px}
 .nav-links{display:none;position:absolute;left:0;right:0;top:70px;background:var(--deep);padding:12px 20px 20px;flex-direction:column;align-items:stretch;box-shadow:0 12px 20px rgba(28,19,34,.2)}
 .nav-links.open{display:flex}
 .nav-links a{padding:12px 8px}
 .nav-links a.active:after{left:8px;right:auto;width:35px;bottom:5px}
 .menu-toggle{display:block}
 .header-action{display:none}
 .page-hero{padding:55px 0 62px}
 .section{padding: sixtypx 0}
 .section-head,.cta-inner{display:block}
 .section-head p{margin-top:12px}
 .update-layout,.archive-grid{grid-template-columns:1fr}
 .update-card{grid-template-columns:70px 1fr}
 .notice-box{align-items:flex-start}
 .notice-box .btn{margin-top:10px}
 .footer-grid{grid-template-columns:1fr 1fr}
 .copyright{display:block}
 .copyright span{display:block;margin-top:7px}
}
@media(max-width:520px){
 .page-hero h1{font-size:38px}
 .page-hero p{font-size:15px}
 .feature-card{padding:27px 23px}
 .feature-card h3{font-size:23px}
 .update-card{padding:18px;gap:13px}
 .update-card h3{font-size:15px}
 .update-card p{font-size:12px}
 .update-date{font-size:12px}
 .notice-box{padding:24px;display:block}
 .notice-mark{margin-bottom:16px}
 .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category3 */
:root{
 --ink:#241d2d;
 --deep:#30233b;
 --deep-2:#412e4e;
 --green:#39a889;
 --green-dark:#247f6d;
 --apricot:#e7a065;
 --cream:#fbf8f3;
 --mist:#f1edf3;
 --line:#ded6e2;
 --muted:#756b7b;
 --white:#fff;
 --radius:16px;
 --shadow:0 14px 38px rgba(45,31,55,.09);
 --shadow-lg:0 22px 60px rgba(45,31,55,.16);
 --max:1220px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 color:var(--ink);
 background:var(--cream);
 font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
 line-height:1.75;
 -webkit-font-smoothing:antialiased
}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
 outline:3px solid rgba(57,168,137,.35);
 outline-offset:3px
}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.site-header{
 height:78px;
 background:rgba(48,35,59,.98);
 color:#fff;
 display:flex;
 align-items:center;
 position:sticky;
 top:0;
 z-index:20;
 box-shadow:0 5px 18px rgba(28,19,34,.12)
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:12px;min-width:225px;font-weight:800;letter-spacing:.02em}
.logo-mark{
 width:38px;height:38px;border:2px solid var(--green);border-radius:11px;
 display:grid;place-items:center;color:var(--green);font-size:14px;flex:none
}
.logo-text{font-size:16px;white-space:nowrap}
.logo-text small{display:block;color:#bdb2c4;font-size:11px;font-weight:400;line-height:1.2;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
 padding:25px 13px 21px;color:#d8cfdd;font-size:14px;position:relative;transition:.25s
}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.active:after{
 content:"";position:absolute;bottom:12px;left:13px;right:13px;
 height:3px;background:var(--green);border-radius:3px
}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:46px;padding:0 21px;border-radius:10px;font-weight:700;
 font-size:14px;transition:.25s;border:1px solid transparent
}
.btn-primary{background:var(--apricot);color:#352438}
.btn-primary:hover{background:#f1b477;transform:translateY(-2px);box-shadow:0 8px 18px rgba(231,160,101,.25)}
.btn-outline{border-color:#b9aabe;color:#fff;background:transparent}
.btn-outline:hover{border-color:var(--green);color:#b7f1e0}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-dark);transform:translateY(-2px)}
.btn-soft{background:#e4f5ef;color:var(--green-dark)}
.btn-soft:hover{background:#d1eee5}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;padding:7px}
.page-intro{
 background:var(--deep);
 color:var(--white);
 padding:72px 0 78px;
 position:relative;
 overflow:hidden
}
.page-intro:before{
 content:"";
 position:absolute;
 width:480px;height:480px;
 border:1px solid rgba(57,168,137,.25);
 border-radius:50%;
 right:-160px;top:-240px
}
.page-intro:after{
 content:"";
 position:absolute;
 width:420px;height:1px;
 background:rgba(231,160,101,.4);
 right:4%;bottom:58px;
 transform:rotate(-24deg)
}
.breadcrumb{
 position:relative;z-index:1;
 display:flex;align-items:center;gap:10px;
 color:#bdb2c4;font-size:13px;margin-bottom:28px
}
.breadcrumb a:hover{color:#a8ead9}
.breadcrumb .current{color:#fff}
.intro-grid{
 position:relative;z-index:1;
 display:grid;grid-template-columns:1fr .72fr;gap:60px;align-items:end
}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 color:#9fe1cf;font-size:13px;font-weight:700;margin-bottom:17px
}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--apricot)}
.page-intro h1{
 margin:0;max-width:700px;font-size:clamp(36px,5vw,62px);
 line-height:1.18;letter-spacing:-.04em
}
.page-intro h1 em{font-style:normal;color:#a8ead9}
.intro-copy{color:#d1c7d7;font-size:16px;margin:20px 0 0;max-width:620px}
.intro-note{
 border-left:3px solid var(--apricot);
 padding:17px 0 17px 20px;
 color:#e1d7e4;font-size:14px;max-width:330px
}
.section{padding:88px 0}
.section.alt{background:var(--mist)}
.section-head{
 display:flex;justify-content:space-between;align-items:end;
 gap:25px;margin-bottom:34px
}
.section-kicker{
 color:var(--green-dark);font-size:12px;font-weight:800;
 letter-spacing:.12em;text-transform:uppercase;margin-bottom:8px
}
.section-head h2{font-size:32px;line-height:1.3;letter-spacing:-.03em;margin:0}
.section-head p{max-width:540px;color:var(--muted);font-size:15px;margin:0}
.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.tag{
 display:inline-flex;align-items:center;min-height:30px;padding:3px 11px;
 border-radius:6px;background:#e4f5ef;color:var(--green-dark);
 font-size:12px;font-weight:700
}
.tag.warm{background:#fff0df;color:#9a5e2f}
.tag.neutral{background:#ebe6ed;color:#65596b}
.download-shell{
 background:var(--white);border:1px solid var(--line);border-radius:20px;
 box-shadow:var(--shadow-lg);overflow:hidden
}
.download-grid{display:grid;grid-template-columns:1.08fr .92fr;min-height:440px}
.download-info{padding:46px 48px}
.download-info h2{font-size:34px;line-height:1.3;margin:10px 0 15px}
.download-info>p{color:var(--muted);max-width:570px;margin:0 0 25px}
.status-line{
 display:flex;align-items:center;gap:10px;color:var(--green-dark);
 font-size:13px;font-weight:700;margin:20px 0 26px
}
.status-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px #e1f4ee}
.platforms{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:22px}
.platform{
 border:1px solid var(--line);border-radius:12px;padding:17px;
 background:#fcfafc;transition:.25s
}
.platform:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:var(--shadow)}
.platform strong{display:block;font-size:16px;margin-bottom:3px}
.platform span{display:block;color:var(--muted);font-size:12px}
.download-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.download-message{font-size:12px;color:var(--muted);min-height:22px;margin-top:12px}
.download-visual{
 background:var(--deep);position:relative;display:grid;place-items:center;
 overflow:hidden;min-height:440px
}
.download-visual:before,.download-visual:after{
 content:"";position:absolute;border:1px solid rgba(57,168,137,.25);border-radius:50%
}
.download-visual:before{width:430px;height:430px;right:-130px;top:-100px}
.download-visual:after{width:270px;height:270px;left:-115px;bottom:-90px}
.phone-stack{position:relative;width:310px;height:365px;z-index:1}
.phone{
 position:absolute;border:8px solid #1e1725;background:#f7f4f8;
 border-radius:30px;box-shadow:0 25px 50px rgba(10,6,15,.35);
 overflow:hidden
}
.phone.main{width:205px;height:350px;right:18px;top:8px;z-index:2}
.phone.back{width:168px;height:285px;left:12px;bottom:5px;transform:rotate(-8deg);opacity:.92}
.phone-top{height:35px;background:#493653;display:flex;align-items:center;justify-content:center}
.phone-notch{width:62px;height:7px;border-radius:8px;background:#20182a}
.phone-body{padding:15px}
.phone-brand{font-weight:900;color:var(--deep);font-size:17px;margin-bottom:12px}
.phone-banner{height:76px;background:#d9eee8;border-radius:12px;padding:12px;color:var(--green-dark);font-size:12px;font-weight:700}
.phone-row{height:12px;background:#ddd5e0;border-radius:6px;margin-top:12px}
.phone-row.short{width:64%}
.phone-list{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:18px}
.phone-tile{height:62px;border-radius:9px;background:#eee8ef;padding:9px;font-size:10px;color:#756b7b}
.phone-tile b{display:block;font-size:13px;color:var(--deep)}
.info-strip{padding:24px 0;background:#fff;border-bottom:1px solid var(--line);border-top:1px solid var(--line)}
.info-strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.info-point{padding:8px 24px;border-right:1px solid var(--line)}
.info-point:first-child{padding-left:0}
.info-point:last-child{border-right:0}
.info-point strong{display:block;color:var(--deep);font-size:20px;line-height:1.3}
.info-point span{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.feature-card,.update-card,.step-box,.faq-box,.feedback-box,.version-box{
 background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow)
}
.feature-card{padding:32px;min-height:285px;position:relative;overflow:hidden}
.feature-card:after{
 content:"NG28";position:absolute;right:-12px;bottom:-38px;
 font-size:115px;font-weight:900;color:rgba(57,168,137,.09)
}
.feature-card h3,.feature-card p,.feature-card .tag-row{position:relative;z-index:1}
.feature-card h3{font-size:25px;max-width:430px;margin:12px 0}
.feature-card p{color:var(--muted);max-width:470px}
.update-list{display:grid;gap:13px}
.update-card{padding:20px 22px;display:flex;justify-content:space-between;align-items:center;gap:18px;transition:.25s}
.update-card:hover{border-color:var(--green);transform:translateX(3px)}
.update-card h3{font-size:16px;line-height:1.45;margin:7px 0 3px}
.update-card p{font-size:13px;color:var(--muted);margin:0}
.update-arrow{width:34px;height:34px;border-radius:50%;background:#e4f5ef;color:var(--green-dark);display:grid;place-items:center;flex:none;font-size:18px}
.timeline-wrap{max-width:900px;margin:auto;position:relative}
.timeline-wrap:before{
 content:"";position:absolute;left:104px;top:12px;bottom:14px;width:1px;background:var(--line)
}
.timeline-item{display:grid;grid-template-columns:105px 1fr;gap:30px;position:relative;padding-bottom:32px}
.timeline-date{font-size:13px;color:var(--green-dark);font-weight:800;padding-top:3px}
.timeline-content{position:relative;padding-left:25px}
.timeline-content:before{
 content:"";position:absolute;width:11px;height:11px;border-radius:50%;
 background:var(--green);left:-6px;top:8px;box-shadow:0 0 0 5px var(--cream)
}
.timeline-content h3{font-size:19px;margin:0 0 5px}
.timeline-content p{color:var(--muted);font-size:14px;margin:0;max-width:650px}
.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
.device-card{background:var(--white);border:1px solid var(--line);border-radius:15px;padding:25px;transition:.25s}
.device-card:hover{transform:translateY(-4px);border-color:var(--green);box-shadow:var(--shadow)}
.device-icon{
 width:42px;height:42px;border-radius:12px;background:var(--deep);
 color:#a8ead9;display:grid;place-items:center;font-weight:900;margin-bottom:17px
}
.device-card h3{font-size:18px;margin:0 0 6px}
.device-card p{font-size:13px;color:var(--muted);margin:0}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step-box{padding:25px;position:relative}
.step-num{font-size:34px;line-height:1;color:var(--apricot);font-weight:900;margin-bottom:22px}
.step-box h3{font-size:17px;margin:0 0 7px}
.step-box p{font-size:13px;color:var(--muted);margin:0}
.version-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:20px;align-items:stretch}
.version-box{padding:31px}
.version-box.dark{background:var(--deep);color:#fff;border-color:var(--deep)}
.version-box h3{font-size:24px;margin:0 0 13px}
.version-box p{color:var(--muted);font-size:14px;margin:0}
.version-box.dark p{color:#d1c7d7}
.version-number{font-size:54px;line-height:1;font-weight:900;color:var(--green);margin:18px 0 10px;letter-spacing:-.05em}
.version-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.version-meta span{font-size:12px;padding:5px 9px;border-radius:6px;background:#493653;color:#d8cfdd}
.faq-box{padding:12px 24px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
 list-style:none;cursor:pointer;padding:20px 38px 20px 0;
 font-weight:800;font-size:16px;position:relative
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{
 content:"+";position:absolute;right:4px;top:17px;
 width:25px;height:25px;border-radius:50%;background:#eee8ef;
 color:var(--green-dark);display:grid;place-items:center;font-size:20px;font-weight:400
}
.faq-item[open] summary:after{content:"−";background:#e4f5ef}
.faq-answer{color:var(--muted);font-size:14px;padding:0 38px 20px 0;max-width:840px}
.feedback-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:20px}
.feedback-box{padding:34px}
.feedback-box.dark{background:var(--deep);color:#fff;border-color:var(--deep)}
.feedback-box.dark p{color:#d1c7d7}
.feedback-box h2{font-size:27px;line-height:1.35;margin:0 0 13px}
.feedback-box p{color:var(--muted);font-size:14px;margin:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:700}
.field input,.field textarea,.field select{
 width:100%;border:1px solid var(--line);border-radius:9px;
 background:#fcfafc;color:var(--ink);padding:11px 13px;
 transition:.2s;min-height:45px
}
.field textarea{min-height:112px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
 border-color:var(--green);box-shadow:0 0 0 4px rgba(57,168,137,.12);outline:0
}
.form-note{font-size:12px;color:var(--muted);margin:13px 0 0}
.form-message{font-size:13px;color:var(--green-dark);min-height:22px;margin-top:10px}
.cta-band{background:var(--deep);color:#fff;padding:45px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-inner h2{font-size:28px;line-height:1.35;margin:0 0 8px}
.cta-inner p{color:#d1c7d7;margin:0;font-size:14px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none}
.site-footer{background:#241b2d;color:#fff;padding:58px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr .8fr;gap:40px;padding-bottom:42px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{color:#bdb2c4;font-size:13px;max-width:330px;margin:0}
.footer-title{font-size:14px;font-weight:800;margin-bottom:15px;color:#fff}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#bdb2c4;font-size:13px;transition:.2s}
.footer-links a:hover{color:#9fe1cf;padding-left:3px}
.copyright{
 border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
 display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;
 color:#8f8395;font-size:12px
}
@media (max-width:1024px){
 .nav-links a{padding-left:8px;padding-right:8px;font-size:13px}
 .nav-links a.active:after{left:8px;right:8px}
 .logo{min-width:205px}
 .intro-grid{gap:35px}
 .download-info{padding:38px}
 .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
 .footer-grid>div:last-child{grid-column:2}
}
@media (max-width:768px){
 .container{width:min(var(--max),calc(100% - 34px))}
 .site-header{height:70px}
 .nav-wrap{gap:12px}
 .logo{min-width:0;gap:9px}
 .logo-text{font-size:14px}
 .logo-text small{font-size:10px}
 .logo-mark{width:35px;height:35px;font-size:12px}
 .nav-links{
  display:none;position:absolute;left:0;right:0;top:70px;
  background:var(--deep);padding:8px 17px 18px;
  flex-direction:column;align-items:stretch;gap:0;
  box-shadow:0 15px 24px rgba(28,19,34,.2)
 }
 .nav-links.open{display:flex}
 .nav-links a{padding:13px 10px;border-bottom:1px solid rgba(255,255,255,.08)}
 .nav-links a.active:after{left:10px;right:auto;width:28px;bottom:6px}
 .menu-toggle{display:block}
 .header-download{display:none}
 .page-intro{padding:47px 0 55px}
 .intro-grid{grid-template-columns:1fr;gap:25px}
 .intro-note{max-width:none}
 .section{padding:64px 0}
 .section-head{display:block;margin-bottom:26px}
 .section-head p{margin-top:12px}
 .download-grid{grid-template-columns:1fr}
 .download-visual{min-height:370px}
 .download-info{padding:30px 25px}
 .download-info h2{font-size:28px}
 .info-strip-grid{grid-template-columns:1fr 1fr;gap:18px}
 .info-point{padding:3px 14px;border-right:0}
 .info-point:first-child{padding-left:0}
 .feature-layout,.version-layout,.feedback-wrap{grid-template-columns:1fr}
 .device-grid{grid-template-columns:1fr 1fr}
 .steps{grid-template-columns:1fr 1fr}
 .timeline-wrap:before{left:82px}
 .timeline-item{grid-template-columns:83px 1fr;gap:18px}
 .timeline-content{padding-left:21px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .footer-grid>div:last-child{grid-column:auto}
 .cta-inner{display:block}
 .cta-actions{margin-top:22px}
}
@media (max-width:520px){
 .container{width:calc(100% - 28px)}
 .page-intro h1{font-size:38px}
 .intro-copy{font-size:15px}
 .platforms,.device-grid,.steps,.form-grid{grid-template-columns:1fr}
 .field.full{grid-column:auto}
 .phone-stack{transform:scale(.86)}
 .download-visual{min-height:330px}
 .info-strip-grid{grid-template-columns:1fr 1fr;gap:12px}
 .info-point strong{font-size:17px}
 .feature-card,.version-box,.feedback-box{padding:25px}
 .faq-box{padding:8px 18px}
 .faq-item summary{font-size:15px}
 .timeline-wrap:before{left:69px}
 .timeline-item{grid-template-columns:70px 1fr;gap:12px}
 .timeline-content{padding-left:15px}
 .timeline-content h3{font-size:17px}
 .update-card{align-items:flex-start;padding:17px}
 .cta-inner h2{font-size:24px}
 .copyright{display:block}
 .copyright span{display:block;margin-bottom:5px}
}