/* roulang page: index */
:root{--ink:#202522;--ink-2:#343b36;--paper:#f7f8f3;--white:#fffefa;--lime:#c7f34a;--lime-deep:#9fc72b;--mist:#e9eee5;--line:#dbe2d7;--muted:#687169;--plum:#735a7d;--coral:#d97c65;--shadow:0 16px 38px rgba(32,37,34,.08);--shadow-hover:0 22px 46px rgba(32,37,34,.14);--radius:20px;--radius-sm:13px;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.65;font-size:15px}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}.section{padding:88px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);font-size:12px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:20px;height:2px;background:var(--lime-deep)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(38px,5vw,68px);line-height:1.12;letter-spacing:-.055em}h2{font-size:clamp(27px,3.4vw,42px);line-height:1.2;letter-spacing:-.04em;margin-bottom:16px}h3{font-size:18px;line-height:1.4;margin-bottom:8px}p{color:var(--muted)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:36px}.section-head p{max-width:570px;margin:0}.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:100px;background:#e7eddc;color:#46502d;font-size:12px;font-weight:700}.badge.purple{background:#eee7f0;color:var(--plum)}.badge.coral{background:#f8e9e4;color:#a45442}.btn{min-height:48px;display:inline-flex;justify-content:center;align-items:center;gap:10px;padding:11px 18px;border:1px solid var(--ink);border-radius:12px;font-weight:800;transition:.22s ease}.btn:hover{transform:translateY(-2px)}.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(159,199,43,.45);outline-offset:3px}.btn-main{background:var(--lime);color:var(--ink)}.btn-main:hover{background:var(--ink);color:var(--lime)}.btn-outline{background:transparent;color:var(--ink)}.btn-outline:hover{background:var(--ink);color:var(--white)}.arrow{font-size:19px;line-height:1}.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid transparent;background:rgba(247,248,243,.94);backdrop-filter:blur(10px)}.site-header.scrolled{border-color:var(--line);box-shadow:0 5px 18px rgba(32,37,34,.05)}.nav-wrap{height:76px;display:flex;align-items:center;gap:28px}.brand{min-width:224px;font-size:15px;font-weight:900;letter-spacing:-.04em;line-height:1.15}.brand small{display:block;margin-top:3px;color:var(--muted);font-size:10px;letter-spacing:.06em}.main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}.main-nav a{position:relative;padding:12px 10px;color:#495149;font-size:14px;font-weight:700}.main-nav a:after{content:"";position:absolute;left:10px;right:10px;bottom:5px;height:3px;border-radius:5px;background:var(--lime);transform:scaleX(0);transition:.2s}.main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}.nav-action{white-space:nowrap}.menu-toggle{display:none;border:0;background:none;padding:10px;font-size:22px}
.hero{padding:62px 0 32px;overflow:hidden}.hero-grid{position:relative;display:grid;grid-template-columns:1.13fr .87fr;gap:48px;align-items:center;min-height:545px;padding:54px;border-radius:30px;background:var(--ink);color:var(--white);isolation:isolate}.hero-grid:before{content:"";position:absolute;inset:0;opacity:.13;background-image:linear-gradient(90deg,transparent 49%,#d9e7c2 50%,transparent 51%),linear-gradient(#d9e7c2 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 80%);z-index:-1}.hero h1{max-width:650px;margin:18px 0}.hero h1 strong{color:var(--lime);font-weight:900}.hero p{max-width:560px;color:#d5dacf;font-size:17px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.hero-meta{display:flex;gap:10px;flex-wrap:wrap}.hero-meta .badge{background:#313a32;color:#dce5cd;border:1px solid #4b554a}.phone-stage{position:relative;height:420px}.phone{position:absolute;right:48px;bottom:-54px;width:240px;height:474px;padding:12px;border:7px solid #889087;border-radius:34px;background:#141814;box-shadow:16px 22px 0 rgba(199,243,74,.19)}.phone-top{width:74px;height:16px;border-radius:0 0 11px 11px;background:#0e110f;margin:auto}.screen{height:423px;margin-top:7px;padding:18px;border-radius:22px;background:#eef1e8;color:var(--ink);overflow:hidden}.screen-name{font-size:11px;font-weight:900}.screen-block{margin-top:17px;padding:13px;border-radius:13px;background:var(--ink);color:#fff}.screen-block b{display:block;font-size:13px}.screen-block span{font-size:10px;color:#d4dacd}.screen-line{height:7px;margin-top:9px;border-radius:5px;background:#d5dbcf}.screen-line.short{width:60%}.screen-tile{height:84px;margin-top:13px;border-radius:13px;background:linear-gradient(145deg,#c7f34a,#dde8b9);padding:13px;font-size:11px;font-weight:800}.screen-list{display:flex;align-items:center;gap:8px;margin-top:13px;font-size:10px}.screen-dot{width:28px;height:28px;border-radius:9px;background:#d7a193}.float-card{position:absolute;padding:13px 15px;border:1px solid #d5dfc6;border-radius:14px;background:var(--white);color:var(--ink);box-shadow:var(--shadow);font-size:12px}.float-card b{display:block;font-size:14px}.float-card.one{left:8px;top:82px}.float-card.two{left:0;bottom:49px}.status-bar{padding:0 0 28px}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--white)}.status-item{display:flex;align-items:center;gap:12px;padding:19px 21px;border-right:1px solid var(--line)}.status-item:last-child{border:0}.status-icon{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:#edf2df;font-weight:900}.status-item b,.status-item span{display:block}.status-item span{font-size:12px;color:var(--muted)}
.topic-grid{display:grid;grid-template-columns:1.1fr .9fr 1.1fr;gap:16px}.topic-card{min-height:158px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:.25s}.topic-card:hover{transform:translateY(-4px);border-color:#bbd96c;box-shadow:var(--shadow-hover)}.topic-card.dark{background:var(--ink);color:#fff;border-color:var(--ink)}.topic-card.lime{background:var(--lime);border-color:var(--lime)}.topic-card:nth-child(1){grid-row:span 2}.topic-card:nth-child(5){grid-row:span 2}.topic-card p{margin:8px 0 17px;font-size:13px}.topic-card.dark p{color:#cbd4c6}.topic-card .arrow-link{font-weight:800}.download-zone{background:var(--ink);color:var(--white);position:relative;overflow:hidden}.download-zone:after{content:"";position:absolute;width:390px;height:390px;right:-110px;top:-160px;border:1px solid rgba(199,243,74,.25);border-radius:50%}.download-grid{position:relative;z-index:1;display:grid;grid-template-columns:.85fr 1.15fr;gap:75px;align-items:center}.device-board{display:flex;justify-content:center;gap:15px;align-items:end}.mini-phone{width:160px;height:300px;padding:8px;border:5px solid #737b74;border-radius:27px;background:#111}.mini-phone.secondary{width:130px;height:246px;opacity:.8}.mini-screen{height:100%;padding:16px;border-radius:17px;background:#eff3e8;color:var(--ink)}.qr{width:86px;height:86px;padding:7px;background:var(--white);display:grid;grid-template-columns:repeat(5,1fr);gap:3px}.qr i{background:var(--ink)}.qr i:nth-child(2n){background:var(--lime-deep)}.download-zone p{color:#cad2c4}.version-row{display:flex;gap:9px;flex-wrap:wrap;margin:18px 0}.version-row span{padding:5px 9px;border:1px solid #4a5549;border-radius:100px;color:#d9e1d4;font-size:12px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin:25px 0}.step{padding:14px 0;border-top:1px solid #566053}.step b{color:var(--lime);font-size:12px}.step span{display:block;margin-top:5px;color:#e5eae0;font-size:13px}.trial-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:36px}.flow-item{position:relative;padding:20px 24px 18px;border-left:1px solid var(--line)}.flow-item:first-child{border-left:0}.flow-no{display:grid;place-items:center;width:34px;height:34px;margin-bottom:18px;border-radius:50%;background:var(--ink);color:var(--lime);font-size:12px;font-weight:900}.flow-item p{font-size:13px;margin:0}.verify-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center}.number-list{display:grid;gap:2px}.number-item{display:grid;grid-template-columns:56px 1fr;gap:17px;padding:18px 0;border-bottom:1px solid var(--line)}.number-item strong{font-size:26px;color:var(--lime-deep);line-height:1}.number-item p{font-size:13px;margin:4px 0 0}.check-card{padding:30px;border:1px solid var(--line);border-radius:24px;background:var(--white);box-shadow:var(--shadow)}.check-card h3{margin-bottom:16px}.check-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--mist)}.check-row:last-child{border:0}.tick{color:#527019;font-weight:900}.check-row span:last-child{font-size:12px;color:var(--muted)}
.news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}.news-feature,.news-item{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);overflow:hidden;transition:.22s}.news-feature:hover,.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.news-cover{height:190px;padding:20px;display:flex;align-items:end;background:linear-gradient(135deg,#29302b,#54614f);color:var(--white);position:relative}.news-cover:before{content:"";position:absolute;inset:16px;border:1px solid rgba(199,243,74,.45);border-radius:13px}.news-cover b{position:relative;font-size:23px;max-width:260px;line-height:1.25}.news-body{padding:22px}.news-body h3{font-size:20px}.news-body p{font-size:13px}.news-info{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px}.news-list{display:grid;gap:10px}.news-item{padding:16px 18px;display:grid;grid-template-columns:1fr auto;gap:8px}.news-item h3{font-size:15px;margin:5px 0}.news-item p{font-size:12px;margin:0}.empty-state{grid-column:1/-1;text-align:center;padding:64px 20px;border:1px dashed #bfcbb7;border-radius:var(--radius);background:var(--white)}.empty-icon{width:54px;height:54px;display:grid;place-items:center;margin:0 auto 15px;border:1px solid var(--line);border-radius:17px;font-size:25px}.checklist-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.checklist-item{display:flex;gap:14px;padding:20px;border-radius:16px;background:#eef2e9}.circle{flex:0 0 25px;height:25px;border:2px solid var(--lime-deep);border-radius:50%;position:relative}.circle:after{content:"";position:absolute;width:7px;height:4px;left:6px;top:7px;border-left:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(-45deg)}.checklist-item p{margin:3px 0 0;font-size:13px}.timeline{position:relative;margin-left:10px;padding-left:31px;border-left:2px solid var(--line)}.timeline-item{position:relative;padding:0 0 27px}.timeline-item:before{content:"";position:absolute;left:-39px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--paper);border:3px solid var(--lime-deep)}.timeline-item.current:before{background:var(--lime)}.timeline-date{font-size:12px;color:var(--muted)}.timeline-item p{font-size:13px;margin:5px 0}.scenes{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.scene{min-height:255px;padding:30px;position:relative;border-radius:var(--radius);overflow:hidden;background:#e6ede1}.scene:nth-child(2){background:#f1e8e5}.scene-art{position:absolute;right:24px;bottom:0;width:150px;height:155px;border:6px solid var(--ink);border-bottom:0;border-radius:20px 20px 0 0;background:#f8faf4;transform:rotate(8deg)}.scene-art:before,.scene-art:after{content:"";position:absolute;left:16px;right:16px;height:12px;border-radius:8px;background:#dce5d4}.scene-art:before{top:35px}.scene-art:after{top:60px;width:68%}.scene p{max-width:55%;font-size:13px}.tag-search{display:grid;grid-template-columns:.75fr 1.25fr;gap:40px;padding:36px;border:1px solid var(--line);border-radius:24px;background:var(--white)}.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:19px}.tag-cloud span{padding:8px 12px;border:1px solid var(--line);border-radius:100px;font-size:13px}.search-ui{display:flex;align-items:center;gap:9px;padding:7px 8px 7px 16px;border:1px solid var(--line);border-radius:13px}.search-ui input{width:100%;border:0;outline:0;background:transparent;color:var(--ink)}.search-ui button{min-height:38px;border:0;border-radius:9px;background:var(--ink);color:var(--lime);padding:0 15px;font-weight:700}.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:65px}.faq-list{display:grid;gap:9px}.faq{border:1px solid var(--line);border-radius:14px;background:var(--white)}.faq button{width:100%;min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 17px;border:0;background:transparent;text-align:left;font-weight:800}.faq button span:last-child{color:var(--lime-deep);font-size:22px}.faq-answer{display:none;padding:0 17px 17px;color:var(--muted);font-size:13px}.faq.open .faq-answer{display:block}.faq.open{border-color:#c3db78}.feedback{display:grid;grid-template-columns:.75fr 1.25fr;gap:45px;padding:40px;border-radius:26px;background:#e7ede0}.feedback p{font-size:14px}.feedback-tags{display:flex;flex-wrap:wrap;gap:8px}.feedback-tags span{padding:6px 10px;border-radius:100px;background:var(--white);font-size:12px}.feedback-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:12px;font-weight:800}.field em{color:#a65142;font-style:normal}.field input,.field select,.field textarea{width:100%;min-height:48px;padding:12px;border:1px solid #cfd8c9;border-radius:11px;background:var(--white);outline:0}.field textarea{min-height:104px;resize:vertical}.form-note{grid-column:1/-1;margin:0;color:var(--muted);font-size:12px}.submit-btn{border:0}.end-cta{padding:35px 0 82px}.end-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:31px 36px;border-radius:22px;background:var(--ink);color:var(--white)}.end-inner h2{margin:0;font-size:29px}.end-inner p{margin:6px 0 0;color:#ccd4c5}.end-actions{display:flex;align-items:center;gap:15px}.qr-small{width:54px;height:54px;padding:5px;background:#fff;display:grid;grid-template-columns:repeat(4,1fr);gap:2px}.qr-small i{background:var(--ink)}.qr-small i:nth-child(3n){background:var(--lime-deep)}footer{background:#18201b;color:#e7ede0}.footer-top{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:35px;padding:54px 0 34px}.footer-brand{font-size:19px;font-weight:900}.footer-brand p{max-width:390px;color:#aeb8ae;font-size:13px;margin-top:12px}.footer-title{margin-bottom:11px;color:var(--lime);font-size:12px;font-weight:900;letter-spacing:.08em}.footer-links{display:grid;gap:8px}.footer-links a{color:#c6cec3;font-size:13px}.footer-links a:hover{color:var(--lime)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:19px 0;border-top:1px solid #374139;color:#9ba69b;font-size:12px}.footer-bottom div:last-child{max-width:590px;text-align:right}
@media(max-width:1024px){.nav-wrap{gap:12px}.brand{min-width:180px}.main-nav a{padding:11px 7px;font-size:13px}.hero-grid{gap:20px;padding:40px}.download-grid,.verify-grid,.faq-wrap{gap:32px}.section{padding:72px 0}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--max))}.nav-wrap{height:66px}.brand{font-size:13px;min-width:0}.main-nav,.nav-action{display:none}.menu-toggle{display:block;margin-left:auto}.site-header.menu-open .main-nav{position:absolute;display:grid;gap:0;top:66px;left:0;right:0;padding:12px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 14px 22px rgba(32,37,34,.09)}.site-header.menu-open .main-nav a{padding:13px 4px}.hero{padding-top:28px}.hero-grid{grid-template-columns:1fr;padding:34px 26px;min-height:auto}.hero p{font-size:15px}.phone-stage{height:275px}.phone{right:calc(50% - 105px);bottom:-36px;width:205px;height:373px}.screen{height:327px}.float-card.one{left:4%;top:30px}.float-card.two{left:3%;bottom:10px}.status-grid{grid-template-columns:repeat(2,1fr)}.status-item:nth-child(2){border-right:0}.status-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.topic-grid{grid-template-columns:1fr 1fr}.topic-card:nth-child(1),.topic-card:nth-child(5){grid-row:auto}.download-grid,.verify-grid,.news-layout,.tag-search,.faq-wrap,.feedback{grid-template-columns:1fr}.download-grid{gap:32px}.device-board{order:-1}.steps{grid-template-columns:1fr}.trial-flow{grid-template-columns:1fr 1fr}.flow-item:nth-child(odd){border-left:0}.flow-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.section-head{display:block}.section-head p{margin-top:8px}.scenes,.checklist-grid{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}.end-inner{align-items:flex-start;flex-direction:column}.footer-bottom{display:block}.footer-bottom div:last-child{text-align:left;margin-top:7px}}
@media(max-width:520px){.section{padding:54px 0}h1{font-size:36px}.hero-grid{border-radius:22px}.hero-actions{display:grid}.btn{width:100%}.status-grid{grid-template-columns:1fr}.status-item,.status-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.status-item:last-child{border-bottom:0}.topic-grid{grid-template-columns:1fr}.topic-card{min-height:135px}.phone-stage{height:250px}.download-zone{padding:54px 0}.mini-phone{width:138px;height:255px}.mini-phone.secondary{width:110px;height:208px}.trial-flow{grid-template-columns:1fr}.flow-item,.flow-item:nth-child(odd){border-left:0;border-bottom:1px solid var(--line)}.flow-item:last-child{border-bottom:0}.news-feature,.news-item{border-radius:15px}.news-item{grid-template-columns:1fr}.feedback{padding:25px 18px}.feedback-form{grid-template-columns:1fr}.field.full{grid-column:auto}.end-inner{padding:26px}.end-actions{width:100%;align-items:stretch;flex-direction:column}.end-actions .btn{width:100%}.footer-top{grid-template-columns:1fr}.footer-top>div:first-child{grid-column:auto}.footer-bottom{font-size:11px}}

/* roulang page: category1 */
:root{--ink:#202522;--ink-2:#343b36;--paper:#f7f8f3;--white:#fffefa;--lime:#c7f34a;--lime-deep:#9fc72b;--mist:#e9eee5;--line:#dbe2d7;--muted:#687169;--plum:#735a7d;--coral:#d97c65;--shadow:0 16px 38px rgba(32,37,34,.08);--shadow-hover:0 22px 46px rgba(32,37,34,.14);--radius:20px;--radius-sm:13px;--max:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:15px;line-height:1.65}
a{color:inherit;text-decoration:none}
a,button,input,select,textarea{transition:.22s ease}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:78px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:2px;background:var(--lime-deep)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:32px}
.section-head h2{margin:9px 0 0;font-size:31px;line-height:1.25;font-weight:850;letter-spacing:-.04em}
.section-head p{max-width:535px;margin:0;color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:100px;background:#e7eddc;color:#46502d;font-size:12px;font-weight:800;line-height:1.3}
.badge.purple{background:#eee7f0;color:var(--plum)}
.badge.coral{background:#f8e9e4;color:#a45442}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:10px 18px;border:1px solid var(--ink);border-radius:12px;font-weight:800}
.btn:hover{transform:translateY(-2px)}
.btn-main{background:var(--lime);color:var(--ink)}
.btn-main:hover{background:var(--ink);color:var(--lime)}
.btn-outline{background:transparent;color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--white)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(159,199,43,.48);outline-offset:3px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,243,.94);border-bottom:1px solid transparent;backdrop-filter:blur(12px)}
.site-header.scrolled{border-color:var(--line);box-shadow:0 5px 18px rgba(32,37,34,.05)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:28px}
.brand{min-width:224px;font-size:15px;font-weight:900;letter-spacing:-.04em;line-height:1.15}
.brand small{display:block;margin-top:4px;color:var(--muted);font-size:10px;letter-spacing:.06em;font-weight:700}
.main-nav{display:flex;flex:1;align-items:center;justify-content:center;gap:4px}
.main-nav a{position:relative;padding:12px 10px;color:#495149;font-size:14px;font-weight:700}
.main-nav a:after{content:"";position:absolute;right:10px;bottom:5px;left:10px;height:3px;border-radius:5px;background:var(--lime);transform:scaleX(0);transition:.2s}
.main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
.nav-action{white-space:nowrap}
.menu-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:23px}
.page-hero{padding:44px 0 34px;border-bottom:1px solid var(--line);background:linear-gradient(110deg,#eef2e6 0%,var(--paper) 55%,#f5f1ed 100%)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:18px;color:var(--muted);font-size:13px}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.breadcrumb i{font-style:normal;color:#a5aea2}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:45px;align-items:end}
.page-hero h1{max-width:760px;margin:13px 0 14px;font-size:43px;line-height:1.16;font-weight:900;letter-spacing:-.06em}
.page-hero p{max-width:710px;margin:0;color:#586159;font-size:16px}
.hero-index{padding:24px;border:1px solid #cad5bd;border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
.hero-index strong{display:block;margin-bottom:13px;font-size:13px}
.hero-index span{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--mist);color:var(--muted);font-size:13px}
.hero-index span:last-child{border-bottom:0}
.dot{width:8px;height:8px;border-radius:50%;background:var(--lime-deep);display:inline-block}
.signal-bar{padding:26px 0;background:var(--ink);color:var(--white)}
.signal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.signal-item{min-height:68px;display:flex;align-items:center;gap:14px;padding:0 27px;border-right:1px solid #485148}
.signal-item:first-child{padding-left:0}
.signal-item:last-child{border:0}
.signal-icon{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:#333c34;color:var(--lime);font-weight:900}
.signal-item b{display:block;font-size:14px}
.signal-item span{display:block;color:#bac4b5;font-size:12px}
.feature-card{display:grid;grid-template-columns:.9fr 1.1fr;gap:0;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:var(--white);box-shadow:var(--shadow)}
.feature-art{position:relative;min-height:300px;padding:26px;background:var(--ink);overflow:hidden}
.feature-art:before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(199,243,74,.13) 1px,transparent 1px),linear-gradient(rgba(199,243,74,.13) 1px,transparent 1px);background-size:30px 30px;opacity:.6}
.feature-window{position:absolute;right:30px;bottom:0;left:55px;padding:18px;border:1px solid #66705f;border-radius:18px 18px 0 0;background:#2d342e;color:#edf2e7;box-shadow:0 -12px 28px rgba(0,0,0,.16)}
.window-line{height:8px;margin:9px 0;border-radius:10px;background:#5a6559}
.window-line.short{width:56%;background:var(--lime)}
.window-chip{display:inline-block;padding:4px 8px;border-radius:20px;background:#465143;color:var(--lime);font-size:10px}
.feature-copy{padding:38px}
.feature-copy h2{margin:13px 0;font-size:28px;font-weight:850;line-height:1.28}
.feature-copy p{margin:0 0 23px;color:var(--muted)}
.meta-row{display:flex;flex-wrap:wrap;gap:14px;margin:21px 0;color:var(--muted);font-size:13px}
.meta-row time{font-variant-numeric:tabular-nums}
.article-list{border-top:1px solid var(--line)}
.article-row{display:grid;grid-template-columns:116px minmax(0,1fr) auto;align-items:center;gap:26px;padding:23px 0;border-bottom:1px solid var(--line)}
.article-date{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}
.article-date b{display:block;color:var(--ink);font-size:17px}
.article-body h3{margin:5px 0 6px;font-size:18px;font-weight:850;line-height:1.4}
.article-body p{margin:0;color:var(--muted);font-size:13px}
.article-link{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line);border-radius:50%;font-size:19px}
.article-row:hover .article-link{background:var(--lime);border-color:var(--lime);transform:translateX(3px)}
.dynamic-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.dynamic-card{position:relative;min-height:205px;padding:29px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden}
.dynamic-card:after{content:"";position:absolute;right:-26px;bottom:-42px;width:150px;height:150px;border:22px solid #edf2e6;border-radius:50%}
.dynamic-card.dark{background:var(--ink);border-color:var(--ink);color:var(--white)}
.dynamic-card.dark:after{border-color:#3b463b}
.dynamic-card h3{position:relative;z-index:1;margin:16px 0 7px;font-size:21px;font-weight:850}
.dynamic-card p{position:relative;z-index:1;max-width:390px;margin:0;color:var(--muted)}
.dynamic-card.dark p{color:#c7d0c3}
.version-panel{padding:30px;border:1px solid var(--line);border-radius:24px;background:#f1f4eb}
.timeline{position:relative;padding-left:27px}
.timeline:before{content:"";position:absolute;top:6px;bottom:6px;left:6px;width:1px;background:#bfcbb4}
.timeline-item{position:relative;padding:0 0 23px 20px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item:before{content:"";position:absolute;top:5px;left:-1px;width:14px;height:14px;border:3px solid #f1f4eb;border-radius:50%;background:var(--lime-deep)}
.timeline-item b{display:block;margin-bottom:2px;font-size:15px}
.timeline-item p{margin:3px 0 0;color:var(--muted);font-size:13px}
.timeline-item time{color:var(--plum);font-size:12px;font-weight:800;font-variant-numeric:tabular-nums}
.notice-box{display:grid;grid-template-columns:62px 1fr;gap:21px;padding:33px;border:1px solid #cfdcc1;border-radius:22px;background:#eaf0df}
.notice-num{display:grid;place-items:center;width:56px;height:56px;border-radius:17px;background:var(--lime);font-size:20px;font-weight:900}
.notice-box h2{margin:0 0 8px;font-size:23px;font-weight:850}
.notice-box p{max-width:820px;margin:0;color:#556052}
.notice-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:17px}
.notice-points span{padding:5px 9px;border:1px solid #c4d2b8;border-radius:20px;color:#56614f;font-size:12px;font-weight:700}
.more-area{padding:26px 30px;border-top:1px solid var(--line);text-align:center}
.more-link{display:inline-flex;align-items:center;gap:9px;font-weight:850}
.more-link:hover{color:#5c7912}
.more-link .arrow{font-size:20px}
.footer-top{display:grid;grid-template-columns:1.45fr .7fr .7fr;gap:50px;padding:58px 0 40px}
footer{margin-top:28px;background:var(--ink);color:var(--white)}
.footer-brand{margin-bottom:12px;font-size:18px;font-weight:900;letter-spacing:-.04em}
.footer-top p{max-width:410px;margin:0;color:#bfc8ba;font-size:13px}
.footer-title{margin-bottom:12px;color:var(--lime);font-size:13px;font-weight:850}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#d5ddd0;font-size:13px}
.footer-links a:hover{color:var(--lime)}
.footer-bottom{display:flex;justify-content:space-between;gap:30px;padding:19px 0;border-top:1px solid #414a42;color:#aeb8aa;font-size:12px}
.footer-bottom div:last-child{max-width:560px;text-align:right}
@media(max-width:1024px){
 .brand{min-width:180px}.nav-wrap{gap:14px}.main-nav a{padding:12px 7px;font-size:13px}.page-hero-grid{grid-template-columns:1fr 260px}.section{padding:66px 0}
}
@media(max-width:768px){
 .container{width:min(100% - 32px,var(--max))}.nav-wrap{height:68px;justify-content:space-between}.brand{min-width:0;font-size:14px}.nav-action{display:none}.menu-toggle{display:block}.main-nav{position:absolute;top:68px;right:16px;left:16px;display:none;align-items:stretch;padding:10px;border:1px solid var(--line);border-radius:16px;background:var(--white);box-shadow:var(--shadow)}.main-nav.open{display:flex;flex-direction:column}.main-nav a{width:100%;padding:11px 12px}.main-nav a:after{right:auto;bottom:8px;left:12px;width:28px}
 .page-hero{padding:34px 0 30px}.page-hero-grid{grid-template-columns:1fr;gap:24px}.page-hero h1{font-size:35px}.hero-index{padding:19px}.signal-grid{grid-template-columns:1fr}.signal-item,.signal-item:first-child{padding:14px 0;border-right:0;border-bottom:1px solid #485148}.signal-item:last-child{border:0}
 .section{padding:56px 0}.section-head{display:block;margin-bottom:25px}.section-head h2{font-size:27px}.section-head p{margin-top:11px}.feature-card{grid-template-columns:1fr}.feature-art{min-height:240px}.feature-copy{padding:28px}.dynamic-grid{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr 1fr;gap:34px}.footer-top>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom div:last-child{margin-top:8px;text-align:left}
}
@media(max-width:520px){
 body{font-size:14px}.container{width:calc(100% - 28px)}.page-hero h1{font-size:30px}.page-hero p{font-size:14px}.feature-copy h2{font-size:24px}.feature-art{min-height:215px}.feature-window{right:20px;left:25px}.article-row{grid-template-columns:1fr auto;gap:12px;padding:19px 0}.article-date{grid-column:1/-1;display:flex;gap:10px;align-items:center}.article-date b{font-size:13px}.article-body h3{font-size:16px}.article-body p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.article-link{width:40px;height:40px}.notice-box{grid-template-columns:1fr;padding:25px;gap:14px}.footer-top{grid-template-columns:1fr;padding:42px 0 30px}.footer-top>div:first-child{grid-column:auto}
}

/* roulang page: article */
:root{--ink:#202522;--ink-2:#343b36;--paper:#f7f8f3;--white:#fffefa;--lime:#c7f34a;--lime-deep:#9fc72b;--mist:#e9eee5;--line:#dbe2d7;--muted:#687169;--plum:#735a7d;--coral:#d97c65;--shadow:0 16px 38px rgba(32,37,34,.08);--shadow-hover:0 22px 46px rgba(32,37,34,.14);--radius:20px;--radius-sm:13px;--max:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:15px;line-height:1.65}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:42px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:2px;background:var(--lime-deep)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:100px;background:#e7eddc;color:#46502d;font-size:12px;font-weight:700}
.badge.purple{background:#eee7f0;color:var(--plum)}
.badge.coral{background:#f8e9e4;color:#a45442}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:10px 18px;border:1px solid var(--ink);border-radius:12px;font-weight:800;transition:.22s ease}
.btn:hover{transform:translateY(-2px)}
.btn-main{background:var(--lime);color:var(--ink)}
.btn-main:hover{background:var(--ink);color:var(--lime)}
.btn-outline{background:transparent;color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--white)}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{outline:3px solid rgba(159,199,43,.48);outline-offset:3px}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(219,226,215,.8);background:rgba(247,248,243,.94);backdrop-filter:blur(10px)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:28px}
.brand{min-width:224px;font-size:15px;font-weight:900;letter-spacing:-.04em;line-height:1.15}
.brand small{display:block;margin-top:3px;color:var(--muted);font-size:10px;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}
.main-nav a{position:relative;padding:12px 10px;color:#495149;font-size:14px;font-weight:700}
.main-nav a:after{content:"";position:absolute;left:10px;right:10px;bottom:5px;height:3px;border-radius:5px;background:var(--lime);transform:scaleX(0);transition:.2s}
.main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
.nav-action{white-space:nowrap}
.menu-toggle{display:none;border:0;background:none;padding:10px;font-size:22px;color:var(--ink)}
.article-hero{padding:48px 0 26px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:24px;color:var(--muted);font-size:13px}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline}
.breadcrumb i{font-style:normal;color:#9aa39b}
.article-intro{padding:42px 48px;border:1px solid var(--line);border-radius:28px;background:var(--white);box-shadow:var(--shadow)}
.article-intro h1{max-width:900px;margin:15px 0 18px;font-size:clamp(30px,4.5vw,52px);line-height:1.22;letter-spacing:-.045em;font-weight:900}
.article-summary{max-width:820px;margin:0;color:#576057;font-size:17px}
.article-meta{display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:25px;color:var(--muted);font-size:13px}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta b{color:var(--ink)}
.read-layout{display:grid;grid-template-columns:minmax(0,800px) 260px;gap:50px;align-items:start;padding-top:28px}
.article-body{min-width:0;padding:42px 48px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 10px 30px rgba(32,37,34,.04)}
.article-body h2{margin:42px 0 18px;padding-top:8px;font-size:27px;line-height:1.35;font-weight:900}
.article-body h2:first-child{margin-top:0}
.article-body h3{margin:30px 0 13px;font-size:20px;font-weight:850}
.article-body p{margin:0 0 20px;font-size:17px;line-height:1.95;color:#303831}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px}
.article-body li{padding-left:5px;margin:8px 0;font-size:16px;line-height:1.8}
.article-body blockquote{margin:26px 0;padding:18px 22px;border-left:4px solid var(--lime-deep);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:#f3f6eb;color:#3d473e}
.article-body img{margin:26px auto;border-radius:14px;border:1px solid var(--line)}
.article-body table{width:100%;margin:24px 0;border-collapse:collapse;font-size:14px}
.article-body th,.article-body td{padding:12px;border:1px solid var(--line);text-align:left}
.article-body th{background:var(--mist);font-weight:800}
.toc{position:sticky;top:103px;padding:21px;border:1px solid var(--line);border-radius:16px;background:var(--white)}
.toc strong{display:block;margin-bottom:11px;font-size:14px}
.toc a{display:block;padding:8px 0;border-bottom:1px solid var(--mist);color:var(--muted);font-size:13px;transition:.2s}
.toc a:last-child{border:0}
.toc a:hover{padding-left:5px;color:var(--ink)}
.info-card{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin:30px 0;border:1px solid var(--line);border-left:4px solid var(--lime-deep);border-radius:var(--radius-sm);overflow:hidden;background:var(--line)}
.info-cell{padding:17px;background:#fbfcf8}
.info-cell span{display:block;margin-bottom:4px;color:var(--muted);font-size:12px}
.info-cell b{font-size:14px}
.steps-panel{margin-top:32px;padding:29px;border-radius:var(--radius);background:var(--ink);color:var(--white)}
.steps-panel h2{margin:0 0 22px;color:var(--white);font-size:24px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step{padding:18px;border:1px solid #4a5449;border-radius:14px;background:#29302a}
.step-no{display:block;margin-bottom:14px;color:var(--lime);font-size:12px;font-weight:900;letter-spacing:.1em}
.step h3{margin:0 0 7px;font-size:16px}
.step p{margin:0;color:#d4dbcf;font-size:13px;line-height:1.7}
.tag-panel{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:30px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tag-panel strong{margin-right:4px;font-size:14px}
.tag{padding:5px 10px;border-radius:100px;background:var(--mist);color:#505b50;font-size:12px;font-weight:700}
.related{padding:50px 0}
.section-title{margin:0 0 23px;font-size:28px;font-weight:900;letter-spacing:-.03em}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{display:flex;flex-direction:column;min-height:220px;padding:23px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:.24s}
.related-card:hover{transform:translateY(-4px);border-color:#bbd96c;box-shadow:var(--shadow-hover)}
.related-card h3{margin:14px 0 10px;font-size:18px;line-height:1.45;font-weight:850}
.related-card p{margin:0;color:var(--muted);font-size:13px}
.related-card .card-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:18px;color:var(--muted);font-size:12px}
.related-card .go{color:var(--ink);font-size:18px;font-weight:900}
.return-panel{display:flex;align-items:center;justify-content:space-between;gap:25px;margin:0 0 80px;padding:27px 31px;border-radius:var(--radius);background:#e9eee5}
.return-panel h2{margin:0 0 5px;font-size:20px;font-weight:900}
.return-panel p{margin:0;color:var(--muted);font-size:14px}
.return-actions{display:flex;flex-wrap:wrap;gap:10px}
.empty-content{text-align:center;padding:40px 10px}
.empty-content h2{margin:0 0 10px}
.empty-content p{margin:0 0 20px;color:var(--muted)}
footer{padding:58px 0 25px;background:var(--ink);color:#f0f3eb}
.footer-top{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:50px;padding-bottom:42px}
.footer-brand{margin-bottom:11px;font-size:18px;font-weight:900}
.footer-top p{max-width:380px;margin:0;color:#bfc8b9;font-size:13px}
.footer-title{margin-bottom:12px;color:var(--lime);font-size:13px;font-weight:900}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#d6ddd0;font-size:13px;transition:.2s}
.footer-links a:hover{color:var(--lime);padding-left:3px}
.footer-bottom{display:flex;justify-content:space-between;gap:30px;padding-top:21px;border-top:1px solid #3d463d;color:#aeb8a8;font-size:12px}
.footer-bottom div:last-child{max-width:560px;text-align:right}
@media(max-width:1024px){.main-nav{gap:0}.nav-wrap{gap:14px}.brand{min-width:190px}.read-layout{grid-template-columns:minmax(0,1fr) 220px;gap:24px}.article-body{padding:34px}.info-card{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--max))}.nav-wrap{height:68px;justify-content:space-between}.brand{min-width:0;max-width:230px}.main-nav{display:none;position:absolute;top:68px;left:16px;right:16px;flex-direction:column;align-items:stretch;padding:10px;border:1px solid var(--line);border-radius:16px;background:var(--white);box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:12px}.nav-action{display:none}.menu-toggle{display:block}.article-hero{padding-top:30px}.article-intro{padding:30px 24px;border-radius:20px}.article-intro h1{font-size:34px}.article-summary{font-size:16px}.read-layout{display:block}.toc{position:relative;top:auto;margin:0 0 16px}.toc-links{display:none}.toc.open .toc-links{display:block}.article-body{padding:29px 23px}.article-body p{font-size:16px}.steps{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr}.return-panel{display:block}.return-actions{margin-top:18px}.footer-top{grid-template-columns:1fr 1fr;gap:28px}.footer-top>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom div:last-child{margin-top:9px;text-align:left}}
@media(max-width:520px){.article-intro h1{font-size:29px}.article-meta{gap:8px 14px}.article-body{padding:25px 18px}.article-body h2{font-size:23px}.info-card{grid-template-columns:1fr}.steps-panel{padding:22px 18px}.footer-top{grid-template-columns:1fr}.footer-top>div:first-child{grid-column:auto}.btn{width:100%}.return-actions .btn{width:100%}}

/* roulang page: category2 */
:root{--ink:#202522;--ink-2:#343b36;--paper:#f7f8f3;--white:#fffefa;--lime:#c7f34a;--lime-deep:#9fc72b;--mist:#e9eee5;--line:#dbe2d7;--muted:#687169;--plum:#735a7d;--coral:#d97c65;--shadow:0 16px 38px rgba(32,37,34,.08);--shadow-hover:0 22px 46px rgba(32,37,34,.14);--radius:20px;--radius-sm:13px;--max:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:15px;line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:82px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:2px;background:var(--lime-deep)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
.section-head h2{margin:8px 0 0;font-size:30px;line-height:1.25;font-weight:850;letter-spacing:-.045em}
.section-head p{max-width:560px;margin:0;color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:100px;background:#e7eddc;color:#46502d;font-size:12px;font-weight:800}
.badge.purple{background:#eee7f0;color:var(--plum)}
.badge.coral{background:#f8e9e4;color:#a45442}
.btn{min-height:48px;display:inline-flex;justify-content:center;align-items:center;gap:10px;padding:11px 18px;border:1px solid var(--ink);border-radius:12px;font-weight:800;transition:.22s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(159,199,43,.5);outline-offset:3px}
.btn-main{background:var(--lime);color:var(--ink)}
.btn-main:hover{background:var(--ink);color:var(--lime)}
.btn-outline{background:transparent;color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--white)}
.arrow{font-size:19px;line-height:1}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid transparent;background:rgba(247,248,243,.94);backdrop-filter:blur(10px);transition:.2s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 5px 18px rgba(32,37,34,.05)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:28px}
.brand{min-width:224px;font-size:15px;font-weight:900;letter-spacing:-.04em;line-height:1.15}
.brand small{display:block;margin-top:3px;color:var(--muted);font-size:10px;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}
.main-nav a{position:relative;padding:12px 10px;color:#495149;font-size:14px;font-weight:700}
.main-nav a:after{content:"";position:absolute;left:10px;right:10px;bottom:5px;height:3px;border-radius:5px;background:var(--lime);transform:scaleX(0);transition:.2s}
.main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
.nav-action{white-space:nowrap}
.menu-toggle{display:none;border:0;background:none;padding:10px;font-size:22px}
.page-intro{padding:48px 0 38px;background:var(--white);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:23px}
.breadcrumb span{color:#a5ada4}
.intro-content{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:60px;align-items:end}
.intro-content h1{max-width:730px;margin:13px 0 16px;font-size:48px;line-height:1.16;letter-spacing:-.065em;font-weight:900}
.intro-content p{max-width:750px;margin:0;color:var(--muted);font-size:16px}
.intro-note{padding:20px 22px;border-left:4px solid var(--lime-deep);background:var(--mist);border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.intro-note b{display:block;margin-bottom:4px;font-size:13px}
.intro-note span{display:block;color:var(--muted);font-size:13px}
.channel-strip{padding:18px 0;background:var(--ink)}
.channel-list{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.channel-list a{display:flex;align-items:center;justify-content:space-between;min-height:54px;padding:10px 16px;border:1px solid #495349;border-radius:12px;color:#dce5d4;font-size:14px;font-weight:800;transition:.2s}
.channel-list a:hover,.channel-list a.current{border-color:var(--lime);background:#303a31;color:var(--lime)}
.channel-list i{font-style:normal;font-size:18px}
.prep-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.prep-card{position:relative;padding:25px 22px 23px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden;transition:.25s}
.prep-card:before{content:"";position:absolute;left:0;top:0;width:4px;height:0;background:var(--lime);transition:.25s}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.prep-card:hover:before{height:100%}
.prep-icon{display:grid;place-items:center;width:38px;height:38px;margin-bottom:22px;border-radius:11px;background:var(--mist);font-size:18px;font-weight:900}
.prep-card h3{margin:0 0 8px;font-size:17px;font-weight:850}
.prep-card p{margin:0;color:var(--muted);font-size:13px}
.guide-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:58px;align-items:start}
.guide-aside{position:sticky;top:104px;padding:29px;border-radius:var(--radius);background:var(--ink);color:var(--white)}
.guide-aside h2{margin:12px 0;font-size:29px;line-height:1.28;font-weight:850}
.guide-aside p{margin:0;color:#ccd4c8}
.guide-aside .badge{margin-top:22px;background:#303a31;color:var(--lime);border:1px solid #4e594d}
.steps-stack{display:grid;gap:14px}
.step-card{display:grid;grid-template-columns:68px 1fr;gap:21px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:.22s}
.step-card:hover{border-color:#b7d76c;box-shadow:var(--shadow)}
.step-number{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:var(--lime);font-size:16px;font-weight:900}
.step-card h3{margin:2px 0 7px;font-size:19px;font-weight:850}
.step-card p{margin:0;color:var(--muted)}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
.article-card{display:flex;flex-direction:column;min-height:278px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:.25s}
.article-card:hover{transform:translateY(-4px);border-color:#bcd96b;box-shadow:var(--shadow-hover)}
.article-meta{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:12px}
.article-card h3{margin:24px 0 10px;font-size:18px;line-height:1.45;font-weight:850}
.article-card p{margin:0;color:var(--muted);font-size:13px}
.article-link{display:inline-flex;align-items:center;gap:7px;margin-top:auto;padding-top:20px;font-weight:850}
.article-link:hover{color:#6a8521}
.rules-box{display:grid;grid-template-columns:180px 1fr;gap:36px;padding:34px 38px;border:1px solid var(--plum);border-radius:var(--radius);background:#faf7fa}
.rules-title{padding-right:25px;border-right:1px solid #dbd0df}
.rules-title b{display:block;color:var(--plum);font-size:13px}
.rules-title h2{margin:8px 0 0;font-size:25px;font-weight:900;line-height:1.3}
.rules-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rule-item{font-size:13px;color:#555b56}
.rule-item strong{display:flex;align-items:center;gap:8px;margin-bottom:7px;color:var(--ink);font-size:14px}
.rule-item em{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:#eadfea;color:var(--plum);font-style:normal;font-size:12px}
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.faq-intro{padding-top:8px}
.faq-intro h2{margin:10px 0 13px;font-size:31px;line-height:1.25;font-weight:900}
.faq-intro p{color:var(--muted)}
.faq-list{display:grid;gap:10px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:var(--white);overflow:hidden}
.faq-question{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:61px;padding:16px 19px;border:0;background:transparent;color:var(--ink);text-align:left;font-weight:850}
.faq-question span:last-child{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--mist);font-size:18px;transition:.2s}
.faq-answer{display:none;padding:0 19px 18px;color:var(--muted);font-size:14px}
.faq-item.open{border-color:#bfdc72}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{background:var(--lime);transform:rotate(45deg)}
.more-bar{padding:34px;border-top:1px solid var(--line);text-align:center}
.more-bar a{display:inline-flex;align-items:center;gap:10px;padding:12px 17px;border-bottom:2px solid var(--lime-deep);font-weight:900;transition:.2s}
.more-bar a:hover{color:#6a8521;transform:translateY(-2px)}
.notice-panel{display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;padding:34px 39px;border-radius:24px;background:var(--ink);color:var(--white)}
.notice-panel h2{margin:8px 0;font-size:27px;font-weight:900}
.notice-panel p{max-width:700px;margin:0;color:#cbd3c6}
.notice-panel .btn{flex:none}
footer{margin-top:0;padding:62px 0 0;background:#1d221f;color:#e4e9df}
.footer-top{display:grid;grid-template-columns:1.45fr .7fr .7fr;gap:64px;padding-bottom:48px}
.footer-brand{margin-bottom:12px;color:var(--lime);font-size:18px;font-weight:900;letter-spacing:-.04em}
.footer-top p{max-width:390px;margin:0;color:#b9c1b5;font-size:13px}
.footer-title{margin-bottom:13px;color:#fff;font-weight:850}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#b9c1b5;font-size:13px;transition:.2s}
.footer-links a:hover{color:var(--lime);padding-left:3px}
.footer-bottom{display:flex;justify-content:space-between;gap:28px;padding:20px 0;border-top:1px solid #3b443d;color:#9da69b;font-size:12px}
.footer-bottom div:last-child{max-width:560px;text-align:right}
@media(max-width:1024px){.intro-content{gap:30px}.intro-content h1{font-size:42px}.guide-layout,.faq-wrap{gap:32px}.prep-grid{grid-template-columns:repeat(2,1fr)}.article-grid{grid-template-columns:repeat(2,1fr)}.rules-list{grid-template-columns:1fr}.rules-box{grid-template-columns:150px 1fr}.footer-top{gap:34px}}
@media(max-width:768px){.container{width:min(var(--max),calc(100% - 32px))}.nav-wrap{height:68px;gap:10px}.brand{min-width:0;font-size:13px}.brand small{font-size:9px}.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;top:68px;left:16px;right:16px;flex-direction:column;align-items:stretch;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:12px}.nav-action{display:none}.page-intro{padding:34px 0}.intro-content{display:block}.intro-content h1{font-size:36px}.intro-note{margin-top:25px}.channel-list{grid-template-columns:repeat(2,1fr)}.section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:12px}.guide-layout,.faq-wrap{grid-template-columns:1fr}.guide-aside{position:relative;top:auto}.rules-box{grid-template-columns:1fr;padding:27px}.rules-title{padding:0 0 19px;border-right:0;border-bottom:1px solid #dbd0df}.notice-panel{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom div:last-child{margin-top:8px;text-align:left}}
@media(max-width:520px){body{font-size:14px}.section{padding:48px 0}.intro-content h1{font-size:30px}.channel-list,.prep-grid,.article-grid{grid-template-columns:1fr}.channel-list a{min-height:48px}.step-card{grid-template-columns:52px 1fr;padding:19px;gap:14px}.step-number{width:42px;height:42px;font-size:13px}.step-card h3{font-size:17px}.rules-box{padding:23px}.rules-list{gap:14px}.notice-panel{padding:27px}.notice-panel h2{font-size:23px}.footer-top{grid-template-columns:1fr;gap:28px}.footer-top>div:first-child{grid-column:auto}.footer-bottom{font-size:11px}}

/* roulang page: category3 */
:root{--ink:#202522;--ink-2:#343b36;--paper:#f7f8f3;--white:#fffefa;--lime:#c7f34a;--lime-deep:#9fc72b;--mist:#e9eee5;--line:#dbe2d7;--muted:#687169;--plum:#735a7d;--coral:#d97c65;--shadow:0 16px 38px rgba(32,37,34,.08);--shadow-hover:0 22px 46px rgba(32,37,34,.14);--radius:20px;--radius-sm:13px;--max:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.65;font-size:15px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:82px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:2px;background:var(--lime-deep)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head h2{margin:8px 0 0;font-size:30px;line-height:1.25;letter-spacing:-.04em;font-weight:850}
.section-head p{max-width:550px;margin:0;color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:100px;background:#e7eddc;color:#46502d;font-size:12px;font-weight:800}
.badge.purple{background:#eee7f0;color:var(--plum)}
.badge.coral{background:#f8e9e4;color:#a45442}
.badge.dark{background:#303732;color:#e2edcf}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:11px 18px;border:1px solid var(--ink);border-radius:12px;font-weight:800;transition:transform .22s ease,background .22s ease,color .22s ease,border-color .22s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-main{background:var(--lime);color:var(--ink)}
.btn-main:hover{background:var(--ink);color:var(--lime)}
.btn-outline{background:transparent;color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--white)}
.btn-dark{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.btn-dark:hover{background:var(--lime);color:var(--ink)}
.arrow{font-size:19px;line-height:1}
:focus-visible{outline:3px solid rgba(159,199,43,.55);outline-offset:3px}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid transparent;background:rgba(247,248,243,.95);backdrop-filter:blur(10px);transition:.25s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 5px 18px rgba(32,37,34,.05)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:28px}
.brand{min-width:224px;font-size:15px;font-weight:900;letter-spacing:-.04em;line-height:1.15}
.brand small{display:block;margin-top:3px;color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}
.main-nav a{position:relative;padding:12px 10px;color:#495149;font-size:14px;font-weight:700}
.main-nav a:after{content:"";position:absolute;left:10px;right:10px;bottom:5px;height:3px;border-radius:5px;background:var(--lime);transform:scaleX(0);transition:.2s}
.main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
.main-nav a.active{color:var(--ink)}
.nav-action{white-space:nowrap}
.menu-toggle{display:none;border:0;background:none;padding:10px;font-size:22px;color:var(--ink)}
.page-intro{padding:54px 0 0}
.intro-shell{position:relative;overflow:hidden;padding:37px 42px 40px;border:1px solid var(--line);border-radius:26px;background:var(--white)}
.intro-shell:after{content:"";position:absolute;right:-44px;top:-58px;width:220px;height:220px;border:30px solid rgba(199,243,74,.32);border-radius:50%}
.breadcrumb{display:flex;align-items:center;gap:9px;margin-bottom:15px;color:var(--muted);font-size:13px}
.breadcrumb span{color:#a0a89f}
.page-intro h1{position:relative;z-index:1;max-width:820px;margin:12px 0 14px;font-size:42px;line-height:1.18;letter-spacing:-.055em;font-weight:900}
.page-intro p{position:relative;z-index:1;max-width:720px;margin:0;color:var(--muted);font-size:16px}
.info-overview{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--white);box-shadow:0 8px 24px rgba(32,37,34,.035)}
.info-unit{min-height:128px;padding:22px;border-right:1px solid var(--line)}
.info-unit:last-child{border-right:0}
.info-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;margin-bottom:12px;border-radius:10px;background:var(--mist);font-size:15px;font-weight:900}
.info-unit:nth-child(2) .info-icon{background:#edf4d9}
.info-unit:nth-child(3) .info-icon{background:#f3eaf3;color:var(--plum)}
.info-unit:nth-child(4) .info-icon{background:#faebe5;color:var(--coral)}
.info-unit b{display:block;font-size:15px}
.info-unit span{display:block;margin-top:3px;color:var(--muted);font-size:13px}
.download-panel{overflow:hidden;border-radius:26px;background:var(--ink);color:var(--white)}
.download-top{display:grid;grid-template-columns:.93fr 1.07fr;min-height:355px}
.code-zone{position:relative;display:flex;align-items:center;justify-content:center;padding:42px;background:#2d342f}
.code-zone:before{content:"";position:absolute;inset:0;opacity:.11;background-image:linear-gradient(90deg,transparent 49%,#e8f5c7 50%,transparent 51%),linear-gradient(#e8f5c7 1px,transparent 1px);background-size:28px 28px}
.qr-card{position:relative;width:205px;padding:18px;border-radius:18px;background:var(--white);color:var(--ink);box-shadow:0 20px 40px rgba(0,0,0,.18)}
.qr-grid{display:grid;grid-template-columns:repeat(9,1fr);gap:3px;aspect-ratio:1;padding:10px;border-radius:10px;background:#fff}
.qr-grid i{display:block;border-radius:1px;background:#202522}
.qr-grid i:nth-child(4n),.qr-grid i:nth-child(7n+2),.qr-grid i:nth-child(11n+1){background:transparent}
.qr-grid i:nth-child(3n+1){opacity:.92}
.qr-card p{margin:11px 0 0;text-align:center;font-size:12px;font-weight:800}
.download-detail{padding:43px 48px}
.download-detail h2{margin:12px 0;font-size:29px;letter-spacing:-.04em}
.download-detail>p{max-width:570px;margin:0;color:#cad4c4}
.step-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:28px}
.step-strip div{position:relative;padding:0 16px 0 0}
.step-strip div:not(:last-child):after{content:"";position:absolute;left:37px;right:10px;top:13px;height:1px;background:#66735f}
.step-strip b{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:27px;height:27px;margin-bottom:9px;border-radius:50%;background:var(--lime);color:var(--ink);font-size:12px}
.step-strip span{display:block;color:#d0d9cd;font-size:12px}
.download-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.check-layout{display:grid;grid-template-columns:.76fr 1.24fr;gap:58px;align-items:start}
.sticky-note{padding:30px;border-radius:20px;background:#eaf0df;border:1px solid #d7e3bf}
.sticky-note h2{margin:10px 0;font-size:27px;line-height:1.3;letter-spacing:-.04em}
.sticky-note p{margin:0;color:#596351}
.install-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.install-item{position:relative;min-height:155px;padding:23px 24px 22px;border:1px solid var(--line);border-radius:18px;background:var(--white);transition:.22s ease}
.install-item:hover{transform:translateY(-4px);border-color:#bfdc72;box-shadow:var(--shadow)}
.install-item:before{content:"✓";display:flex;align-items:center;justify-content:center;width:30px;height:30px;margin-bottom:16px;border-radius:50%;background:var(--lime);font-weight:900}
.install-item h3{margin:0 0 5px;font-size:17px;font-weight:850}
.install-item p{margin:0;color:var(--muted);font-size:13px}
.preview-band{padding:44px;border:1px solid var(--line);border-radius:26px;background:var(--white)}
.preview-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:32px}
.preview-head h2{margin:8px 0 0;font-size:28px;letter-spacing:-.04em}
.preview-head p{max-width:450px;margin:0;color:var(--muted)}
.screen-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;max-width:850px;margin:0 auto}
.mini-phone{position:relative;min-height:370px;padding:13px;border:7px solid #2c332e;border-radius:30px;background:#1c211e;box-shadow:0 16px 28px rgba(32,37,34,.14)}
.mini-phone:before{content:"";position:absolute;top:6px;left:50%;width:54px;height:7px;border-radius:10px;background:#4c5750;transform:translateX(-50%)}
.mini-screen{height:100%;min-height:334px;overflow:hidden;padding:24px 15px 15px;border-radius:19px;background:#f5f7ef}
.mini-screen b{font-size:12px}
.mini-screen small{display:block;margin-top:4px;color:var(--muted);font-size:9px}
.ui-line{height:9px;margin-top:15px;border-radius:8px;background:#dce4d7}
.ui-line.short{width:62%}
.ui-card{margin-top:12px;padding:11px;border-radius:10px;background:var(--white);border:1px solid var(--line)}
.ui-card.lime{background:var(--lime);border-color:var(--lime)}
.ui-card span{display:block;color:#596457;font-size:9px}
.ui-card strong{display:block;margin-top:5px;font-size:11px}
.ui-toggle{display:flex;justify-content:space-between;align-items:center;margin:13px 0;padding-bottom:11px;border-bottom:1px solid var(--line);font-size:10px}
.ui-toggle i{display:block;width:22px;height:12px;border-radius:10px;background:var(--lime)}
.article-list{display:grid;gap:12px}
.article-row{display:grid;grid-template-columns:126px 1fr auto;align-items:center;gap:22px;padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:var(--white);transition:.22s ease}
.article-row:hover{transform:translateX(4px);border-color:#bcd870;box-shadow:0 12px 26px rgba(32,37,34,.07)}
.article-date{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);font-size:12px}
.article-row h3{margin:0 0 4px;font-size:17px;font-weight:850}
.article-row p{margin:0;color:var(--muted);font-size:13px}
.article-arrow{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:50%;font-size:20px;transition:.2s}
.article-row:hover .article-arrow{background:var(--lime);border-color:var(--lime)}
.update-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.timeline-card,.feedback-card{padding:31px;border:1px solid var(--line);border-radius:22px;background:var(--white)}
.timeline-card h2,.feedback-card h2{margin:8px 0 21px;font-size:24px;letter-spacing:-.03em}
.timeline{position:relative;margin-left:8px;padding-left:25px;border-left:1px solid var(--line)}
.timeline-item{position:relative;padding:0 0 22px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item:before{content:"";position:absolute;left:-31px;top:5px;width:11px;height:11px;border:2px solid var(--white);border-radius:50%;background:var(--lime-deep);box-shadow:0 0 0 1px var(--lime-deep)}
.timeline-item b{display:block;font-size:14px}
.timeline-item span{display:block;margin-top:2px;color:var(--muted);font-size:12px}
.feedback-card{background:#f0f3ea}
.feedback-card p{color:#5c675d}
.feedback-types{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 24px}
.more-line{display:flex;justify-content:center;padding-top:31px}
.more-line a{display:inline-flex;align-items:center;gap:10px;padding-bottom:4px;border-bottom:2px solid var(--lime-deep);font-weight:850;transition:.2s}
.more-line a:hover{color:var(--lime-deep);transform:translateX(3px)}
.download-cta{padding:0 0 88px}
.cta-shell{display:flex;align-items:center;justify-content:space-between;gap:34px;padding:31px 36px;border-radius:22px;background:var(--ink);color:var(--white)}
.cta-shell h2{margin:0 0 5px;font-size:25px;letter-spacing:-.04em}
.cta-shell p{margin:0;color:#cbd5c7}
.cta-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.cta-mini-code{display:grid;grid-template-columns:repeat(5,5px);gap:2px;padding:7px;border-radius:7px;background:#fff}
.cta-mini-code i{display:block;width:5px;height:5px;background:#202522}
.cta-mini-code i:nth-child(3n){background:transparent}
footer{padding:52px 0 0;background:#e9eee5;border-top:1px solid var(--line)}
.footer-top{display:grid;grid-template-columns:1.4fr .7fr .7fr;gap:55px;padding-bottom:42px}
.footer-brand{font-size:18px;font-weight:900;letter-spacing:-.04em}
.footer-top p{max-width:390px;margin:10px 0 0;color:var(--muted);font-size:13px}
.footer-title{margin-bottom:13px;font-weight:850}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#566057;font-size:13px;transition:.2s}
.footer-links a:hover{color:var(--ink);transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;gap:30px;padding:18px 0;border-top:1px solid #d4dcd0;color:#697269;font-size:12px}
.footer-bottom div:last-child{max-width:550px;text-align:right}
@media (max-width:1024px){
 .nav-wrap{gap:14px}.brand{min-width:190px}.main-nav a{padding:12px 7px;font-size:13px}
 .download-top,.check-layout,.update-grid{gap:30px}.download-detail{padding:36px}
 .page-intro h1{font-size:37px}
}
@media (max-width:768px){
 .container{width:min(var(--max),calc(100% - 32px))}
 .section{padding:60px 0}.site-header{position:sticky}.nav-wrap{height:68px;justify-content:space-between}
 .brand{min-width:0;font-size:14px}.main-nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .main-nav.open{display:flex}.main-nav a{padding:12px}.main-nav a:after{left:12px;right:auto;width:28px}
 .menu-toggle{display:block}.nav-action{display:none}
 .page-intro{padding-top:32px}.intro-shell{padding:29px 25px}.page-intro h1{font-size:32px}.page-intro p{font-size:15px}
 .info-overview{grid-template-columns:repeat(2,1fr)}.info-unit:nth-child(2){border-right:0}.info-unit:nth-child(-n+2){border-bottom:1px solid var(--line)}
 .download-top,.check-layout,.update-grid{grid-template-columns:1fr}.code-zone{min-height:280px}.download-detail{padding:33px 26px}
 .install-list{grid-template-columns:1fr 1fr}.preview-band{padding:30px 22px}.screen-gallery{gap:14px}.mini-phone{min-height:315px;border-width:5px;border-radius:24px}.mini-screen{min-height:285px;padding:21px 11px 11px}
 .article-row{grid-template-columns:105px 1fr auto;gap:14px}.footer-top{grid-template-columns:1fr 1fr;gap:30px}.footer-top>div:first-child{grid-column:1/-1}
 .footer-bottom{flex-direction:column;gap:5px}.footer-bottom div:last-child{text-align:left}
}
@media (max-width:520px){
 body{font-size:14px}.section{padding:48px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}
 .page-intro h1{font-size:28px}.intro-shell:after{right:-90px;top:-72px;width:180px;height:180px}.breadcrumb{font-size:12px}
 .info-unit{min-height:112px;padding:17px}.info-unit b{font-size:14px}.info-unit span{font-size:12px}
 .download-detail h2{font-size:25px}.step-strip div{padding-right:8px}.step-strip div:not(:last-child):after{right:4px;left:32px}.step-strip span{font-size:11px}
 .download-actions,.cta-actions{flex-direction:column;align-items:stretch}.download-actions .btn,.cta-actions .btn{width:100%}
 .sticky-note{padding:24px}.install-list{grid-template-columns:1fr}.install-item{min-height:0}
 .preview-head{display:block}.preview-head p{margin-top:12px}.screen-gallery{gap:9px}.mini-phone{min-height:254px;padding:8px;border-width:4px;border-radius:20px}.mini-phone:before{top:4px;width:39px;height:5px}.mini-screen{min-height:230px;padding:17px 8px 8px;border-radius:13px}.ui-card{padding:8px}.ui-line{height:6px;margin-top:11px}
 .article-row{grid-template-columns:1fr auto;gap:10px;padding:17px}.article-date{grid-column:1/-1}.article-row h3{font-size:15px}.article-row p{font-size:12px}.article-arrow{width:38px;height:38px}
 .timeline-card,.feedback-card{padding:24px}.cta-shell{display:block;padding:27px 23px}.cta-actions{margin-top:20px}.cta-mini-code{display:none}
 .footer-top{grid-template-columns:1fr;gap:25px}.footer-top>div:first-child{grid-column:auto}
}

/* roulang page: category4 */
:root{--ink:#202522;--ink-2:#343b36;--paper:#f7f8f3;--white:#fffefa;--lime:#c7f34a;--lime-deep:#9fc72b;--mist:#e9eee5;--line:#dbe2d7;--muted:#687169;--plum:#735a7d;--coral:#d97c65;--shadow:0 16px 38px rgba(32,37,34,.08);--shadow-hover:0 22px 46px rgba(32,37,34,.14);--radius:20px;--radius-sm:13px;--max:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:15px;line-height:1.65}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:84px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:2px;background:var(--lime-deep)}
.section-title{max-width:740px;margin:14px 0 10px;font-size:34px;line-height:1.25;letter-spacing:-.045em;font-weight:850}
.section-copy{max-width:700px;margin:0;color:var(--muted);font-size:15px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:100px;background:#e7eddc;color:#46502d;font-size:12px;font-weight:750;line-height:1}
.badge.purple{background:#eee7f0;color:var(--plum)}
.badge.coral{background:#f8e9e4;color:#a45442}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:11px 18px;border:1px solid var(--ink);border-radius:12px;font-weight:800;transition:transform .22s ease,background .22s ease,color .22s ease,border-color .22s ease}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-main{background:var(--lime);color:var(--ink)}
.btn-main:hover{background:var(--ink);border-color:var(--ink);color:var(--lime)}
.btn-outline{background:transparent;color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--white)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(159,199,43,.48);outline-offset:3px}
.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid transparent;background:rgba(247,248,243,.94);backdrop-filter:blur(10px)}
.site-header.scrolled{border-color:var(--line);box-shadow:0 5px 18px rgba(32,37,34,.05)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:28px}
.brand{min-width:224px;font-size:15px;font-weight:900;letter-spacing:-.04em;line-height:1.15}
.brand small{display:block;margin-top:3px;color:var(--muted);font-size:10px;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}
.main-nav a{position:relative;padding:12px 10px;color:#495149;font-size:14px;font-weight:700;white-space:nowrap}
.main-nav a:after{content:"";position:absolute;left:10px;right:10px;bottom:5px;height:3px;border-radius:5px;background:var(--lime);transform:scaleX(0);transition:.2s}
.main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
.nav-action{white-space:nowrap}
.menu-toggle{display:none;border:0;background:none;padding:10px;color:var(--ink);font-size:22px}
.page-hero{padding:44px 0 30px}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:13px}
.crumb span{color:#a1a89f}
.hero-panel{position:relative;overflow:hidden;margin-top:18px;padding:38px 44px;border:1px solid #384039;border-radius:28px;background:var(--ink);color:var(--white)}
.hero-panel:before{content:"";position:absolute;right:-10px;top:-80px;width:360px;height:360px;border:1px solid rgba(199,243,74,.25);border-radius:50%;box-shadow:0 0 0 35px rgba(199,243,74,.04),0 0 0 70px rgba(199,243,74,.03)}
.hero-panel:after{content:"";position:absolute;right:92px;bottom:30px;width:150px;height:88px;background-image:radial-gradient(circle,rgba(199,243,74,.5) 1px,transparent 1.5px);background-size:12px 12px;opacity:.35}
.hero-inner{position:relative;z-index:1;max-width:770px}
.hero-panel .badge{background:#303a2e;color:#dce7c3;border:1px solid #4b5746}
.hero-panel h1{margin:15px 0 12px;font-size:42px;line-height:1.18;letter-spacing:-.055em;font-weight:900}
.hero-panel p{max-width:710px;margin:0;color:#d2d9ce;font-size:16px}
.hero-note{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-note span{padding:6px 10px;border-left:2px solid var(--lime);color:#dce3d8;font-size:12px}
.summary-strip{display:grid;grid-template-columns:repeat(4,1fr);margin-top:24px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--white)}
.summary-item{min-height:100px;padding:19px 20px;border-right:1px solid var(--line)}
.summary-item:last-child{border-right:0}
.summary-num{display:block;margin-bottom:4px;color:var(--lime-deep);font-size:20px;font-weight:900;line-height:1}
.summary-item b{display:block;font-size:14px}
.summary-item span{display:block;margin-top:4px;color:var(--muted);font-size:12px}
.check-compare{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.compare-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
.compare-head{display:flex;align-items:center;gap:12px;padding:20px 23px;border-bottom:1px solid var(--line)}
.compare-head i{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--lime);font-style:normal;font-weight:900}
.compare-card.alert .compare-head i{background:#f4ddd6;color:#9e5241}
.compare-head h3{margin:0;font-size:18px;font-weight:850}
.check-list{padding:5px 23px 18px;margin:0;list-style:none}
.check-list li{position:relative;padding:16px 0 16px 30px;border-bottom:1px solid var(--mist);color:#4b544d}
.check-list li:last-child{border-bottom:0}
.check-list li:before{content:"✓";position:absolute;left:0;top:16px;display:grid;place-items:center;width:19px;height:19px;border-radius:50%;background:#e8f0d8;color:#56721a;font-size:12px;font-weight:900}
.alert .check-list li:before{content:"!";background:#f9e8e3;color:#a95a47}
.version-shell{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px;margin-top:34px}
.version-card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white)}
.version-card.dark{position:relative;overflow:hidden;background:var(--ink);border-color:var(--ink);color:var(--white)}
.version-card.dark:after{content:"";position:absolute;right:-25px;bottom:-25px;width:160px;height:160px;border:22px solid rgba(199,243,74,.15);border-radius:50%}
.version-card h3{position:relative;z-index:1;margin:0 0 18px;font-size:20px;font-weight:850}
.version-main{position:relative;z-index:1;margin:8px 0 5px;color:var(--lime);font-size:38px;line-height:1;font-weight:900;letter-spacing:-.06em}
.version-card.dark p{position:relative;z-index:1;margin:12px 0 0;color:#d1d8cc;font-size:13px}
.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--line)}
.info-cell{padding:17px;background:var(--white)}
.info-cell span{display:block;color:var(--muted);font-size:12px}
.info-cell b{display:block;margin-top:5px;font-size:14px}
.advice-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}
.advice-card{position:relative;min-height:185px;padding:23px;border:1px solid var(--line);border-radius:18px;background:var(--white);transition:.24s ease}
.advice-card:hover{transform:translateY(-4px);border-color:#bfdc76;box-shadow:var(--shadow-hover)}
.advice-card .count{display:block;margin-bottom:25px;color:var(--plum);font-size:13px;font-weight:900;letter-spacing:.08em}
.advice-card h3{margin:0 0 8px;font-size:17px;font-weight:850}
.advice-card p{margin:0;color:var(--muted);font-size:13px}
.article-list{display:grid;gap:12px;margin-top:34px}
.article-row{display:grid;grid-template-columns:112px 1fr auto;align-items:center;gap:24px;padding:19px 22px;border:1px solid var(--line);border-radius:16px;background:var(--white);transition:.22s ease}
.article-row:hover{transform:translateX(4px);border-color:#bbd96c;box-shadow:var(--shadow)}
.article-date{color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}
.article-body{min-width:0}
.article-body .badge{margin-bottom:7px}
.article-body h3{margin:0 0 4px;font-size:17px;font-weight:850}
.article-body p{overflow:hidden;margin:0;color:var(--muted);font-size:13px;text-overflow:ellipsis;white-space:nowrap}
.article-arrow{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--mist);font-size:20px;font-weight:700;transition:.2s}
.article-row:hover .article-arrow{background:var(--lime)}
.feedback-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:center;padding:36px 40px;border:1px solid #d5dfc6;border-radius:26px;background:#edf2e7}
.feedback-panel h2{margin:10px 0;font-size:30px;line-height:1.25;font-weight:900;letter-spacing:-.04em}
.feedback-panel p{margin:0;color:#59635b}
.feedback-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.feedback-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field{min-height:50px;padding:13px 14px;border:1px solid #cbd5c6;border-radius:12px;background:var(--white);color:#667068;font-size:13px}
.field.full{grid-column:1/-1;min-height:74px}
.feedback-form .btn{grid-column:1/-1}
.more-line{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:27px;padding-top:24px;border-top:1px solid var(--line)}
.more-line p{margin:0;color:var(--muted);font-size:13px}
.more-link{display:inline-flex;align-items:center;gap:8px;font-weight:850}
.more-link:hover{color:#627d1e}
footer{margin-top:34px;background:var(--ink);color:#eef2e8}
.footer-top{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:50px;padding:58px 0 42px}
.footer-brand{margin-bottom:10px;color:var(--lime);font-size:20px;font-weight:900;letter-spacing:-.05em}
.footer-top p{max-width:410px;margin:0;color:#bfc8bb;font-size:13px}
.footer-title{margin-bottom:12px;color:#fff;font-size:14px;font-weight:850}
.footer-links{display:grid;gap:9px}
.footer-links a{width:max-content;max-width:100%;color:#bdc6b9;font-size:13px;transition:.2s}
.footer-links a:hover{color:var(--lime);transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;gap:28px;padding:20px 0;border-top:1px solid #3b443c;color:#aeb8aa;font-size:12px}
.footer-bottom div:last-child{max-width:520px;text-align:right}
@media(max-width:1024px){
.nav-wrap{gap:16px}.brand{min-width:185px}.main-nav a{padding:12px 7px;font-size:13px}.hero-panel{padding:34px}.summary-item{padding:16px}.advice-grid{grid-template-columns:repeat(2,1fr)}.footer-top{gap:28px}
}
@media(max-width:768px){
.container{width:min(var(--max),calc(100% - 32px))}.section{padding:58px 0}.nav-wrap{height:68px;justify-content:space-between}.brand{min-width:0;font-size:14px}.main-nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:10px;border:1px solid var(--line);border-radius:16px;background:var(--white);box-shadow:var(--shadow)}.main-nav.open{display:grid}.main-nav a{padding:12px}.nav-action{display:none}.menu-toggle{display:block}.page-hero{padding:28px 0 18px}.hero-panel{padding:29px 25px;border-radius:22px}.hero-panel h1{font-size:32px}.summary-strip{grid-template-columns:repeat(2,1fr)}.summary-item:nth-child(2){border-right:0}.summary-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.check-compare,.version-shell,.feedback-panel{grid-template-columns:1fr}.feedback-panel{gap:26px;padding:30px 24px}.article-row{grid-template-columns:92px 1fr auto;gap:15px}.footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom div:last-child{margin-top:8px;text-align:left}
}
@media(max-width:520px){
body{font-size:14px}.section-title{font-size:28px}.hero-panel h1{font-size:29px}.hero-panel p{font-size:14px}.hero-note{display:grid}.summary-strip{grid-template-columns:1fr}.summary-item,.summary-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.summary-item:last-child{border-bottom:0}.advice-grid{grid-template-columns:1fr}.article-row{grid-template-columns:1fr auto;gap:12px;padding:17px}.article-date{grid-column:1/-1}.article-body p{white-space:normal}.article-arrow{grid-column:2;grid-row:2;width:38px;height:38px}.feedback-form{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr;gap:28px}.footer-top>div:first-child{grid-column:auto}.more-line{align-items:flex-start;flex-direction:column}.info-grid{grid-template-columns:1fr}.version-card{padding:23px}
}