/* roulang page: index */
:root{
  --ink:#183d35;--ink-2:#245248;--orange:#f36a32;--orange-dark:#d95420;
  --mint:#b9d9be;--sage:#eff4ed;--sand:#f4eee4;--paper:#faf8f3;
  --white:#fffdf9;--text:#21352f;--muted:#687870;--line:#dce4dd;
  --radius:18px;--radius-sm:11px;--shadow:0 12px 32px rgba(24,61,53,.09);
  --shadow-lg:0 22px 52px rgba(24,61,53,.16);--max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid rgba(243,106,50,.46);outline-offset:3px}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:96px 0;position:relative}
.section-soft{background:var(--sage)}
.section-sand{background:var(--sand)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5vw,60px);letter-spacing:-.045em;line-height:1.2;margin-bottom:22px}
h2{font-size:clamp(30px,3.2vw,42px);letter-spacing:-.035em;line-height:1.28;margin:12px 0}
h3{font-size:20px;line-height:1.35;margin-bottom:8px}
.lead{color:var(--muted);font-size:17px;line-height:1.9;max-width:620px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:42px}
.section-head p{margin:0;color:var(--muted);max-width:510px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:11px;background:var(--ink);color:#fff;font-weight:800;transition:.22s ease}
.btn:hover{transform:translateY(-2px);background:var(--ink-2);box-shadow:0 10px 20px rgba(24,61,53,.19)}
.btn:active{transform:translateY(0)}
.btn-orange{background:var(--orange)}
.btn-orange:hover{background:var(--orange-dark)}
.btn-outline{background:transparent;color:var(--ink);border-color:#a9bbb0}
.btn-outline:hover{background:#fff}
.arrow{font-size:20px;line-height:1}
.tag{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:50px;background:#e3eee4;color:var(--ink);font-size:12px;font-weight:800}
.site-header{height:72px;background:rgba(255,253,249,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
.site-header.compact{height:60px;box-shadow:0 4px 18px rgba(24,61,53,.06)}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--ink);font-weight:900;line-height:1.25}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);position:relative;overflow:hidden;flex:0 0 auto}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:50%}
.logo-mark:before{width:21px;height:21px;left:5px;top:5px}.logo-mark:after{width:9px;height:9px;right:3px;bottom:3px;background:var(--orange);border:0}
.nav{display:flex;align-items:center;gap:25px}
.nav a{font-size:14px;color:#4d625b;font-weight:700;position:relative;white-space:nowrap}
.nav a:after{content:"";height:2px;width:0;background:var(--orange);position:absolute;left:0;bottom:-8px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--ink)}
.nav a:hover:after,.nav a.active:after{width:100%}
.nav-actions{display:flex;align-items:center;gap:10px}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:21px}
.hero{padding:72px 0 46px;overflow:hidden;background:linear-gradient(110deg,#faf8f3 0%,#f2f5ed 63%,#e7eee2 100%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:58px;min-height:545px}
.hero-copy .lead{margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:34px}
.hero-art{min-height:450px;position:relative}
.orbit{position:absolute;border:1px solid #b5cbb9;border-radius:50%;width:440px;height:440px;right:0;top:5px}
.orbit:after{content:"";position:absolute;width:12px;height:12px;border-radius:50%;background:var(--orange);left:38px;top:77px;box-shadow:182px 317px 0 var(--ink)}
.phone{position:absolute;width:215px;height:415px;right:134px;top:20px;border:10px solid var(--ink);border-radius:33px;background:#f9faf3;box-shadow:var(--shadow-lg);overflow:hidden;transform:rotate(4deg)}
.phone-top{height:42px;background:var(--ink);border-radius:0 0 17px 17px;width:105px;margin:0 auto}
.phone-inner{padding:18px}
.app-pill{height:72px;border-radius:14px;background:var(--sage);padding:13px;display:flex;align-items:center;gap:10px;margin-bottom:13px}
.app-icon{width:40px;height:40px;border-radius:12px;background:var(--orange);position:relative}.app-icon:after{content:"";position:absolute;width:18px;height:18px;border:2px solid white;border-radius:6px;left:9px;top:9px}
.app-lines{flex:1}.app-lines b,.app-lines i{display:block;height:7px;border-radius:6px;background:#2a554b;margin:6px 0}.app-lines i{width:58%;background:#a9c6ad}
.app-banner{height:138px;border-radius:16px;background:var(--ink);padding:18px;color:#fff;position:relative;overflow:hidden}.app-banner:after{content:"";position:absolute;width:100px;height:100px;border-radius:50%;background:var(--orange);right:-28px;bottom:-35px}.app-banner strong{display:block;font-size:16px;position:relative;z-index:1}.app-banner span{font-size:11px;color:#d7ead8;position:relative;z-index:1}
.app-list{display:flex;gap:8px;margin-top:13px}.app-list span{height:50px;flex:1;border-radius:12px;background:#e6eee5}
.float-card{position:absolute;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:13px 15px;z-index:3}
.float-card strong{display:block;font-size:14px}.float-card small{color:var(--muted);font-size:12px}
.card-a{right:0;top:93px}.card-b{left:8px;bottom:48px}.card-c{right:22px;bottom:15px}
.hero-ribbon{height:48px;margin-top:18px;border-top:1px solid #cddbcf;position:relative}.hero-ribbon:before{content:"";width:72%;height:76px;border:1px solid #c0d4c3;border-bottom:0;border-radius:50% 50% 0 0;position:absolute;right:-5%;top:13px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.quick-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;min-height:164px;display:flex;flex-direction:column;transition:.22s}
.quick-card:hover{transform:translateY(-4px);border-color:#a8c1ac;box-shadow:var(--shadow)}
.icon{width:42px;height:42px;border-radius:13px;background:var(--sage);display:grid;place-items:center;color:var(--ink);font-size:21px;margin-bottom:16px}
.quick-card p{font-size:13px;color:var(--muted);line-height:1.65;margin:0}.quick-card .arrow{margin-top:auto;color:var(--orange);padding-top:10px}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);position:relative;gap:22px}
.timeline:before{content:"";height:1px;background:#b8cabc;position:absolute;top:27px;left:8%;right:8%}
.step{position:relative;padding-top:62px}.step-no{position:absolute;top:0;width:55px;height:55px;background:var(--ink);color:#fff;border:5px solid var(--paper);border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:900;z-index:1}.step:nth-child(even) .step-no{background:var(--orange)}
.step p{margin:0;color:var(--muted);font-size:14px}
.mosaic{display:grid;grid-template-columns:1.15fr .85fr;grid-template-rows:1fr;gap:22px}
.scene-large{min-height:410px;border-radius:22px;background:linear-gradient(145deg,#245248,#183d35);padding:35px;color:#fff;position:relative;overflow:hidden}
.scene-large:before{content:"";position:absolute;width:260px;height:260px;border:1px solid #739a83;border-radius:50%;right:-55px;bottom:-70px}.scene-large:after{content:"";position:absolute;width:110px;height:110px;border-radius:25px;background:var(--orange);right:80px;bottom:60px;transform:rotate(25deg)}
.scene-large h2{max-width:400px;position:relative;z-index:1}.scene-large p{max-width:365px;color:#d4e6d6;position:relative;z-index:1}
.scene-stat{position:absolute;left:35px;bottom:31px;z-index:1;display:flex;gap:17px}.scene-stat b{font-size:24px;display:block}.scene-stat span{font-size:12px;color:#c1d9c4}
.mini-scenes{display:grid;grid-template-rows:repeat(3,1fr);gap:15px}
.mini-scene{background:#fffdf9;border:1px solid var(--line);border-radius:17px;padding:19px;display:flex;align-items:center;gap:14px;transition:.2s}
.mini-scene:hover{box-shadow:var(--shadow);transform:translateX(3px)}
.mini-scene p{font-size:13px;line-height:1.6;margin:4px 0 0;color:var(--muted)}
.app-section{background:var(--ink);color:#fff;overflow:hidden}
.app-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:65px;align-items:center}
.device-stage{height:420px;position:relative;border-radius:24px;background:#29584d;overflow:hidden}
.device-stage:before{content:"";position:absolute;width:330px;height:330px;border:1px solid #719883;border-radius:50%;left:-90px;top:50px}
.device-card{position:absolute;width:215px;height:347px;background:var(--paper);border:8px solid #102f29;border-radius:29px;right:16%;top:36px;transform:rotate(-6deg);padding:14px;color:var(--ink);box-shadow:0 22px 35px rgba(0,0,0,.2)}
.device-card .bar{height:12px;width:50%;background:#d8e7d9;border-radius:9px;margin-bottom:16px}.device-card .poster{height:150px;background:var(--orange);border-radius:15px;position:relative;overflow:hidden}.device-card .poster:after{content:"";position:absolute;width:120px;height:120px;border:3px solid #ffe0cc;border-radius:50%;right:-24px;bottom:-31px}.device-card .row{height:38px;background:#e8efe5;border-radius:10px;margin-top:11px}
.app-section .lead{color:#d1e0d2}
.download-box{display:grid;grid-template-columns:76px 1fr;gap:15px;margin:25px 0;padding:16px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);border-radius:16px}
.big-app-icon{width:76px;height:76px;border-radius:20px;background:var(--orange);display:grid;place-items:center;font-size:30px}
.download-box p{font-size:13px;color:#d1e0d2;margin:4px 0}.qr{width:92px;height:92px;border-radius:9px;background:repeating-linear-gradient(45deg,#fff 0 4px,#d5e6d7 4px 8px);border:6px solid #fff}
.app-download-row{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.app-notice{font-size:12px;color:#c5d9c7;margin-top:16px}
.changelog{display:grid;grid-template-columns:1.15fr .85fr;gap:32px}
.feature-update{background:var(--ink);border-radius:21px;padding:34px;color:white;min-height:350px;position:relative;overflow:hidden}.feature-update:after{content:"";position:absolute;width:190px;height:190px;border:1px solid #79a187;border-radius:50%;right:-35px;bottom:-45px}.feature-update p{color:#d1e2d3;max-width:420px}.feature-update .tag{background:rgba(255,255,255,.13);color:#fff}
.log-list{border-top:1px solid var(--line)}.log-item{display:grid;grid-template-columns:80px 1fr auto;gap:15px;align-items:start;border-bottom:1px solid var(--line);padding:17px 0}.log-date{color:var(--orange);font-size:13px;font-weight:800}.log-item p{font-size:13px;line-height:1.6;color:var(--muted);margin:3px 0 0}.text-link{font-size:14px;font-weight:800;color:var(--ink);white-space:nowrap}.text-link:hover{color:var(--orange)}
.experience-track{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.experience-card{background:var(--white);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.22s}.experience-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.exp-img{height:175px;background:#d8e5d8;position:relative;overflow:hidden}.exp-img:before{content:"";position:absolute;width:180px;height:180px;border-radius:40px;background:var(--ink);transform:rotate(35deg);right:-35px;top:25px}.exp-img.orange:before{background:var(--orange)}.exp-img.sand:before{background:#b69771}.exp-num{position:absolute;left:18px;bottom:13px;color:#fff;font-size:28px;font-weight:900;z-index:1}
.exp-copy{padding:20px}.exp-copy p{font-size:14px;color:var(--muted);margin-bottom:16px}
.news-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}
.news-feature{border-radius:21px;background:var(--white);border:1px solid var(--line);overflow:hidden;transition:.2s}.news-feature:hover{box-shadow:var(--shadow)}
.news-cover{height:245px;background:#345f53;position:relative;overflow:hidden}.news-cover:before{content:"";position:absolute;border:2px solid #9fc2a5;width:245px;height:245px;border-radius:50%;right:-50px;top:-75px}.news-cover:after{content:"";width:90px;height:90px;border-radius:17px;background:var(--orange);position:absolute;bottom:28px;left:34px;transform:rotate(15deg)}
.news-copy{padding:24px}.meta{color:var(--muted);font-size:12px;display:flex;gap:10px;align-items:center}.meta time{white-space:nowrap}.news-copy p{color:var(--muted);font-size:14px;margin-bottom:15px}
.news-list{display:flex;flex-direction:column}.news-item{display:grid;grid-template-columns:116px 1fr;gap:17px;padding:0 0 16px;margin-bottom:16px;border-bottom:1px solid var(--line)}.news-thumb{height:92px;background:#d7e4d6;border-radius:12px;position:relative;overflow:hidden}.news-thumb:after{content:"";width:68px;height:68px;background:var(--orange);position:absolute;right:-17px;bottom:-19px;border-radius:18px;transform:rotate(25deg)}.news-item h3{font-size:16px;margin:6px 0}.news-item p{margin:3px 0 0;font-size:13px;line-height:1.55;color:var(--muted)}
.empty-news{border:1px dashed #b9c9bb;border-radius:18px;padding:50px 24px;text-align:center;background:#fffdf9;color:var(--muted)}.empty-news .icon{margin:0 auto 12px}
.center-link{text-align:center;margin-top:32px}
.solutions{display:grid;grid-template-columns:300px 1fr;gap:28px}
.solution-tabs{display:flex;flex-direction:column;gap:9px}.solution-tab{border:1px solid var(--line);background:#fffdf9;border-radius:12px;padding:16px;text-align:left;color:var(--text);font-weight:800;transition:.2s}.solution-tab:hover,.solution-tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}.solution-panel{background:var(--white);border:1px solid var(--line);border-radius:22px;padding:38px;min-height:310px;position:relative;overflow:hidden}.solution-panel:after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;border:1px solid #c4d6c6;right:-80px;bottom:-100px}.solution-panel p{max-width:520px;color:var(--muted)}.check-list{padding:0;margin:24px 0;list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:10px;max-width:600px}.check-list li:before{content:"✓";color:var(--orange);font-weight:900;margin-right:8px}
.optimise-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:38px}.needs{display:flex;flex-wrap:wrap;align-content:start;gap:10px}.need{padding:13px 15px;border-radius:11px;background:#fffdf9;border:1px solid var(--line);font-weight:800}.opt-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.opt-item{background:rgba(255,255,255,.68);border:1px solid #d4e2d5;border-radius:16px;padding:18px}.opt-item p{font-size:13px;color:var(--muted);margin:7px 0 0}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.trust{padding:23px 18px;border:1px solid var(--line);border-radius:17px;background:#fffdf9}.trust .icon{margin-bottom:13px}.trust p{color:var(--muted);font-size:13px;line-height:1.65;margin:0}
.guide-grid{display:grid;grid-template-columns:1fr .95fr;gap:60px;align-items:center}.guide-steps{display:grid;gap:17px}.guide-step{display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start}.guide-no{width:42px;height:42px;border-radius:50%;background:var(--orange);color:white;display:grid;place-items:center;font-size:13px;font-weight:900}.guide-step p{font-size:14px;color:var(--muted);margin:4px 0 0}.guide-download{border-radius:24px;background:var(--ink);padding:30px;color:#fff;position:relative;overflow:hidden}.guide-download:after{content:"";position:absolute;width:210px;height:210px;border:1px solid #729a80;border-radius:50%;right:-90px;top:-60px}.guide-download .qr{position:absolute;right:33px;bottom:32px}.guide-download p{color:#d3e4d4;max-width:240px}.guide-download .tag{background:#2e5c51;color:#e9f1e9}
.faq-wrap{max-width:900px;margin:auto}.faq{background:#fffdf9;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden}.faq button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:19px 20px;border:0;background:transparent;color:var(--ink);font-weight:800;text-align:left}.faq-symbol{font-size:25px;color:var(--orange);line-height:1;transition:.22s}.faq-content{display:grid;grid-template-rows:0fr;transition:.25s}.faq-content>div{overflow:hidden}.faq-content p{padding:0 20px 19px;color:var(--muted);font-size:14px;margin:0}.faq.open .faq-content{grid-template-rows:1fr}.faq.open .faq-symbol{transform:rotate(45deg)}
.final-cta{background:var(--ink);color:white;overflow:hidden}.final-inner{padding:74px 0;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative}.final-inner:after{content:"";position:absolute;width:360px;height:360px;border:1px solid #6e9780;border-radius:50%;right:-130px;top:-145px}.final-inner p{color:#cce0cf;margin:0}.final-inner h2{margin:9px 0;position:relative;z-index:1}.final-inner>div{position:relative;z-index:1}
.footer{background:#122e28;color:#d6e1d8;padding:62px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:30px}.footer .logo{color:#fff}.footer p{font-size:13px;line-height:1.7;color:#a9beb0;max-width:270px}.footer h3{font-size:14px;color:#fff;margin-bottom:14px}.footer ul{list-style:none;padding:0;margin:0}.footer li{margin:8px 0}.footer a{font-size:13px;color:#b8cbbd}.footer a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.13);margin-top:42px;padding-top:17px;color:#91a89a;font-size:12px;display:flex;justify-content:space-between;gap:15px}
@media(max-width:1050px){.nav{gap:14px}.nav a{font-size:13px}.hero-grid,.app-grid{gap:32px}.quick-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.5fr repeat(2,1fr)}}
@media(max-width:780px){.container{width:min(100% - 32px,var(--max))}.section{padding:64px 0}.site-header{height:64px}.nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fffdf9;border-bottom:1px solid var(--line);padding:18px 16px;grid-template-columns:repeat(2,1fr);gap:8px}.nav.show{display:grid}.nav a{padding:11px;border-radius:8px;background:var(--sage)}.nav a:after{display:none}.menu-toggle{display:grid;place-items:center}.nav-actions .btn{min-height:42px;padding:0 13px;font-size:13px}.logo{min-width:0;font-size:14px}.hero{padding-top:48px}.hero-grid,.app-grid,.guide-grid,.optimise-grid,.changelog,.news-grid,.solutions{grid-template-columns:1fr}.hero-art{min-height:370px;max-width:520px;width:100%;margin:auto}.phone{right:22%;transform:rotate(3deg)}.timeline{grid-template-columns:1fr;gap:18px}.timeline:before{width:1px;height:calc(100% - 40px);left:27px;top:27px}.step{padding:4px 0 4px 74px;min-height:65px}.step-no{top:0}.mosaic{grid-template-columns:1fr}.scene-large{min-height:340px}.mini-scenes{grid-template-columns:repeat(3,1fr);grid-template-rows:none}.mini-scene{display:block}.mini-scene .icon{margin-bottom:8px}.experience-track,.trust-grid{grid-template-columns:repeat(2,1fr)}.section-head{display:block}.section-head p{margin-top:12px}.check-list{grid-template-columns:1fr}.guide-download{min-height:255px}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:520px){body{font-size:15px}.hero-actions .btn{width:100%}.hero-art{min-height:330px}.orbit{width:320px;height:320px}.phone{width:180px;height:348px;right:17%;top:15px}.card-a{right:0;top:54px}.card-b{left:0;bottom:15px}.card-c{display:none}.quick-grid,.experience-track,.trust-grid,.opt-list{grid-template-columns:1fr}.mini-scenes{grid-template-columns:1fr}.scene-large{padding:25px}.news-item{grid-template-columns:88px 1fr}.news-thumb{height:76px}.log-item{grid-template-columns:58px 1fr}.log-item .text-link{display:none}.guide-download .qr{right:20px;bottom:20px;width:76px;height:76px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}}

/* roulang page: article */
:root{
  --ink:#183d35;--ink-2:#245248;--orange:#f36a32;--orange-dark:#d95420;
  --mint:#b9d9be;--sage:#eff4ed;--sand:#f4eee4;--paper:#faf8f3;
  --white:#fffdf9;--text:#21352f;--muted:#687870;--line:#dce4dd;
  --radius:18px;--radius-sm:11px;--shadow:0 12px 32px rgba(24,61,53,.09);
  --shadow-lg:0 22px 52px rgba(24,61,53,.16);--max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.section{padding:84px 0;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:11px;background:var(--ink);color:#fff;font-weight:800;transition:.22s ease}
.btn:hover{transform:translateY(-2px);background:var(--ink-2);box-shadow:0 10px 20px rgba(24,61,53,.19)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(243,106,50,.4);outline-offset:3px}
.btn-orange{background:var(--orange)}
.btn-orange:hover{background:var(--orange-dark)}
.btn-outline{background:transparent;color:var(--ink);border-color:#a9bbb0}
.btn-outline:hover{background:#fff}
.site-header{height:72px;background:rgba(255,253,249,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
.site-header.compact{height:60px;box-shadow:0 4px 18px rgba(24,61,53,.06)}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--ink);font-weight:900;line-height:1.25}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);position:relative;overflow:hidden;flex:0 0 auto}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:50%}
.logo-mark:before{width:21px;height:21px;left:5px;top:5px}
.logo-mark:after{width:9px;height:9px;right:3px;bottom:3px;background:var(--orange);border:0}
.nav{display:flex;align-items:center;gap:25px}
.nav a{font-size:14px;color:#4d625b;font-weight:700;position:relative;white-space:nowrap}
.nav a:after{content:"";height:2px;width:0;background:var(--orange);position:absolute;left:0;bottom:-8px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--ink)}
.nav a:hover:after,.nav a.active:after{width:100%}
.nav-actions{display:flex;align-items:center;gap:10px}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:21px}

.article-hero{padding:72px 0 54px;background:linear-gradient(110deg,#faf8f3 0%,#f1f5ed 68%,#e6eee3 100%);border-bottom:1px solid var(--line)}
.article-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:55px;align-items:end}
.article-category{display:inline-flex;padding:5px 11px;border-radius:50px;background:#e0ece1;color:var(--ink);font-size:13px;font-weight:800}
.article-hero h1{max-width:900px;margin:16px 0 18px;color:var(--ink);font-size:clamp(34px,4.5vw,58px);line-height:1.24;letter-spacing:-.035em}
.article-hero p{max-width:790px;margin:0;color:var(--muted);font-size:17px;line-height:1.9}
.article-symbol{height:205px;border-radius:22px;background:var(--ink);position:relative;overflow:hidden}
.article-symbol:before{content:"";position:absolute;width:165px;height:165px;border:1px solid #81a98c;border-radius:50%;top:20px;left:37px}
.article-symbol:after{content:"";position:absolute;width:90px;height:90px;border-radius:22px;background:var(--orange);right:-25px;bottom:-18px;transform:rotate(24deg)}
.symbol-line{position:absolute;width:170px;height:1px;background:#9ebca3;left:29px;top:100px;transform:rotate(-28deg);z-index:2}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 23px;margin-top:27px;color:#53675f;font-size:14px}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-dot{width:6px;height:6px;border-radius:50%;background:var(--orange)}
.breadcrumb-wrap{padding:20px 0;border-bottom:1px solid var(--line);background:var(--white)}
.breadcrumbs{display:flex;align-items:center;gap:10px;overflow:auto;white-space:nowrap;color:var(--muted);font-size:14px}
.breadcrumbs a{color:var(--ink);font-weight:700}
.breadcrumbs a:hover{color:var(--orange)}
.breadcrumbs b{font-weight:400;color:#9aa7a0}
.article-layout{display:grid;grid-template-columns:minmax(0,800px) 250px;justify-content:space-between;gap:52px}
.article-intro{padding:27px 30px;border:1px solid #e2d6c5;border-left:4px solid var(--orange);border-radius:0 var(--radius) var(--radius) 0;background:var(--sand);color:#4e5c55;font-size:17px}
.article-intro strong{color:var(--ink)}
.reading-content{padding-top:38px;font-size:17px;line-height:1.95}
.reading-content>*:first-child{margin-top:0}
.reading-content h2{margin:54px 0 17px;color:var(--ink);font-size:30px;line-height:1.35}
.reading-content h3{margin:34px 0 13px;color:var(--ink);font-size:22px;line-height:1.45}
.reading-content p{margin:0 0 22px}
.reading-content ul,.reading-content ol{padding-left:1.5em;margin:0 0 24px}
.reading-content li{margin:8px 0;padding-left:4px}
.reading-content blockquote{margin:31px 0;padding:20px 24px;border-radius:0 14px 14px 0;border-left:3px solid var(--mint);background:var(--sage);color:#40554d}
.reading-content img{margin:30px 0;border-radius:var(--radius);border:1px solid var(--line)}
.reading-content table{width:100%;margin:28px 0;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:15px}
.reading-content th,.reading-content td{padding:13px 15px;border-bottom:1px solid var(--line);text-align:left}
.reading-content th{background:var(--sage);color:var(--ink)}
.reading-content tr:last-child td{border-bottom:0}
.article-aside{padding-top:4px}
.aside-card{position:sticky;top:92px;padding:23px;border-radius:var(--radius);border:1px solid var(--line);background:var(--white);box-shadow:var(--shadow)}
.aside-card h2{margin:0 0 13px;color:var(--ink);font-size:18px}
.aside-card p{margin:0 0 16px;color:var(--muted);font-size:14px;line-height:1.75}
.aside-card a{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-top:1px solid var(--line);color:var(--ink);font-size:14px;font-weight:700}
.aside-card a:hover{color:var(--orange)}
.info-card{margin:54px 0;padding:29px 31px;border-radius:var(--radius);background:var(--sage);border:1px solid #d3e1d3}
.info-card h2{margin:0 0 18px;font-size:23px}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.info-item{padding:16px;background:rgba(255,253,249,.75);border:1px solid #d8e4d8;border-radius:12px}
.info-item span{display:block;margin-bottom:5px;color:var(--orange);font-size:12px;font-weight:900;letter-spacing:.06em}
.info-item p{margin:0;color:#52635c;font-size:14px;line-height:1.65}
.download-strip{margin:30px 0 10px;padding:22px 25px;border-radius:var(--radius);background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:22px}
.download-strip-main{display:flex;align-items:center;gap:15px}
.app-icon{width:46px;height:46px;border-radius:13px;background:var(--orange);position:relative;flex:0 0 auto}
.app-icon:before{content:"";position:absolute;inset:12px;border:2px solid #fff5ed;border-radius:7px}
.download-strip h2{margin:0;font-size:18px}
.download-strip p{margin:2px 0 0;color:#d3e3d5;font-size:13px}
.download-strip .btn{min-width:144px;background:var(--orange)}
.related-section{background:var(--sand);border-top:1px solid #e4dbcf;border-bottom:1px solid #e4dbcf}
.section-title{margin:0;color:var(--ink);font-size:clamp(28px,3vw,38px);line-height:1.3}
.section-desc{margin:10px 0 32px;color:var(--muted)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{display:flex;flex-direction:column;min-height:245px;padding:24px;border:1px solid #dddcd3;border-radius:var(--radius);background:var(--white);transition:.22s}
.related-card:hover{transform:translateY(-4px);border-color:#a8c1ac;box-shadow:var(--shadow)}
.related-card .tag{width:max-content;margin-bottom:16px}
.related-card time{color:var(--muted);font-size:13px}
.related-card h3{margin:9px 0 10px;color:var(--ink);font-size:20px;line-height:1.45}
.related-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.related-card a{margin-top:auto;padding-top:17px;color:var(--orange);font-weight:800;font-size:14px}
.return-section{padding:74px 0;background:var(--paper)}
.return-box{padding:38px 42px;border-radius:22px;background:var(--ink);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:32px;position:relative;overflow:hidden}
.return-box:after{content:"";position:absolute;width:220px;height:220px;border:1px solid #789c82;border-radius:50%;right:-50px;top:-82px}
.return-box h2{position:relative;z-index:1;margin:0 0 8px;font-size:29px}
.return-box p{position:relative;z-index:1;margin:0;color:#caddcd}
.return-links{position:relative;z-index:1;display:flex;gap:11px;flex-wrap:wrap}
.return-links .btn{background:#fffdf9;color:var(--ink)}
.return-links .btn:hover{background:var(--mint)}
.return-links .btn-orange{background:var(--orange);color:#fff}
.empty-content{padding:50px 28px;border:1px dashed #b7c7b9;border-radius:var(--radius);background:var(--white);text-align:center}
.empty-icon{width:54px;height:54px;margin:0 auto 15px;border-radius:16px;background:var(--sage);display:grid;place-items:center;color:var(--ink);font-size:24px}
.empty-content h2{margin:0 0 7px;color:var(--ink);font-size:23px}
.empty-content p{margin:0 0 20px;color:var(--muted)}
.footer{background:#13342e;color:#d7e3d9;padding:66px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.65fr repeat(4,1fr);gap:32px}
.footer .logo{color:#fff;min-width:0}
.footer .logo-mark{background:#eff4ed}
.footer .logo-mark:before{border-color:var(--ink)}
.footer p{margin:18px 0 0;max-width:270px;color:#afc5b5;font-size:14px;line-height:1.75}
.footer h3{margin:4px 0 15px;color:#fff;font-size:15px}
.footer ul{margin:0;padding:0;list-style:none}
.footer li{margin:7px 0}
.footer li a{color:#b9cdbd;font-size:14px;transition:.2s}
.footer li a:hover{color:#fff}
.copyright{display:flex;justify-content:space-between;gap:20px;margin-top:46px;padding-top:19px;border-top:1px solid rgba(222,234,228,.18);color:#9eb7a6;font-size:13px}

@media(max-width:1024px){
  .nav{gap:15px}
  .article-hero-grid{grid-template-columns:1fr 190px;gap:28px}
  .article-layout{grid-template-columns:minmax(0,1fr) 210px;gap:30px}
  .footer-grid{grid-template-columns:1.5fr repeat(2,1fr)}
}
@media(max-width:767px){
  .container{width:min(100% - 32px,var(--max))}
  .section{padding:58px 0}
  .site-header{height:66px}
  .logo{min-width:0;font-size:13px}
  .logo-mark{width:31px;height:31px}
  .nav{display:none;position:absolute;left:0;right:0;top:65px;padding:16px;background:var(--white);border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-wrap:wrap;gap:0}
  .nav.open{display:grid;grid-template-columns:1fr 1fr}
  .nav a{padding:12px 10px}
  .nav a:after{display:none}
  .nav-actions .btn{min-height:42px;padding:0 12px;font-size:13px}
  .menu-toggle{display:block}
  .article-hero{padding:50px 0 38px}
  .article-hero-grid{display:block}
  .article-hero h1{font-size:35px}
  .article-hero p{font-size:16px}
  .article-symbol{display:none}
  .breadcrumb-wrap{padding:15px 0}
  .article-layout{display:block}
  .article-aside{display:none}
  .article-intro{padding:22px;font-size:16px}
  .reading-content{font-size:16px}
  .reading-content h2{font-size:26px;margin-top:42px}
  .reading-content h3{font-size:20px}
  .info-card{padding:23px 20px}
  .info-grid{grid-template-columns:1fr}
  .download-strip{padding:20px;align-items:flex-start;flex-direction:column}
  .download-strip .btn{width:100%}
  .related-grid{grid-template-columns:1fr}
  .return-box{padding:30px 24px;display:block}
  .return-box h2{font-size:25px}
  .return-links{margin-top:22px}
  .footer{padding-top:51px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px}
  .footer-grid>div:first-child{grid-column:1/-1}
  .copyright{display:block;margin-top:35px}
  .copyright span{display:block;margin:4px 0}
}
@media(max-width:420px){
  .nav-actions .btn{display:none}
  .article-hero h1{font-size:31px}
  .meta-row{gap:8px 15px}
  .return-links{display:grid}
  .return-links .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-grid>div:first-child{grid-column:auto}
}

/* roulang page: category1 */
:root{
      --ink:#183d35;--ink-2:#245248;--orange:#f36a32;--orange-dark:#d95420;
      --mint:#b9d9be;--sage:#eff4ed;--sand:#f4eee4;--paper:#faf8f3;
      --white:#fffdf9;--text:#21352f;--muted:#687870;--line:#dce4dd;
      --radius:18px;--radius-sm:11px;--shadow:0 12px 32px rgba(24,61,53,.09);
      --shadow-lg:0 22px 52px rgba(24,61,53,.16);--max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
    .section{padding:94px 0;position:relative}
    .section-soft{background:var(--sage)}
    .section-sand{background:var(--sand)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
    .lead{color:var(--muted);font-size:17px;line-height:1.9;max-width:660px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px}
    .section-head h2{margin:8px 0 0;font-size:38px;line-height:1.28;letter-spacing:-.03em;color:var(--ink)}
    .section-head p{margin:0;max-width:500px;color:var(--muted)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:11px;background:var(--ink);color:#fff;font-weight:800;transition:.22s ease}
    .btn:hover{transform:translateY(-2px);background:var(--ink-2);box-shadow:0 10px 20px rgba(24,61,53,.19);color:#fff}
    .btn:focus-visible,.menu-toggle:focus-visible,.faq-q:focus-visible{outline:3px solid rgba(243,106,50,.35);outline-offset:3px}
    .btn:active{transform:translateY(0)}
    .btn-orange{background:var(--orange)}
    .btn-orange:hover{background:var(--orange-dark)}
    .btn-outline{background:transparent;color:var(--ink);border-color:#a9bbb0}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .tag{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:50px;background:#e3eee4;color:var(--ink);font-size:12px;font-weight:800}
    .site-header{height:72px;background:rgba(255,253,249,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
    .site-header.compact{height:60px;box-shadow:0 4px 18px rgba(24,61,53,.06)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--ink);font-weight:900;line-height:1.25}
    .logo-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);position:relative;overflow:hidden;flex:0 0 auto}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:50%}
    .logo-mark:before{width:21px;height:21px;left:5px;top:5px}
    .logo-mark:after{width:9px;height:9px;right:3px;bottom:3px;background:var(--orange);border:0}
    .nav{display:flex;align-items:center;gap:25px}
    .nav a{font-size:14px;color:#4d625b;font-weight:700;position:relative;white-space:nowrap}
    .nav a:after{content:"";height:2px;width:0;background:var(--orange);position:absolute;left:0;bottom:-8px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--ink)}
    .nav a:hover:after,.nav a.active:after{width:100%}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:21px}
    .topic-hero{padding:76px 0 70px;background:linear-gradient(120deg,#f8f6ef 0%,#eff4ed 56%,#e2ece2 100%);overflow:hidden}
    .topic-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:58px;align-items:center}
    .crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:25px}
    .crumb span:last-child{color:var(--ink);font-weight:800}
    .topic-hero h1{margin:14px 0 20px;font-size:56px;line-height:1.17;letter-spacing:-.05em;color:var(--ink)}
    .topic-hero .lead{margin:0}
    .topic-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .meta-pill{display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border:1px solid #c9d9ca;border-radius:50px;background:rgba(255,253,249,.7);color:var(--ink);font-size:13px;font-weight:700}
    .node-board{min-height:328px;position:relative;border-radius:26px;background:var(--ink);overflow:hidden;box-shadow:var(--shadow-lg)}
    .node-board:before{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(185,217,190,.48);border-radius:50%;right:-110px;top:-105px}
    .node-board:after{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(185,217,190,.32);border-radius:50%;left:-105px;bottom:-120px}
    .node-line{position:absolute;height:1px;background:rgba(185,217,190,.55);transform-origin:left center}
    .line-one{width:175px;left:91px;top:102px;transform:rotate(28deg)}
    .line-two{width:128px;left:142px;top:189px;transform:rotate(-25deg)}
    .node{position:absolute;z-index:1;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:900}
    .node-main{width:110px;height:110px;left:70px;top:106px;background:var(--orange);color:#fff;box-shadow:0 0 0 10px rgba(243,106,50,.15)}
    .node-small{width:74px;height:74px;background:#f9f5eb;color:var(--ink)}
    .node-a{right:63px;top:55px}
    .node-b{right:47px;bottom:50px;background:var(--mint)}
    .node-c{left:96px;bottom:30px;background:#2d6155;color:#fff;border:1px solid #84ad8d}
    .board-caption{position:absolute;left:28px;top:28px;color:#dcebdd;font-size:13px;letter-spacing:.08em}
    .channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .channel-link{min-height:146px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);display:flex;flex-direction:column;justify-content:space-between;transition:.22s}
    .channel-link:hover{transform:translateY(-4px);border-color:#a8c1ac;box-shadow:var(--shadow)}
    .channel-num{color:var(--orange);font-size:13px;font-weight:900}
    .channel-link strong{font-size:20px;color:var(--ink)}
    .channel-link small{color:var(--muted);font-size:13px}
    .editorial-list{display:grid;gap:18px}
    .story-card{display:grid;grid-template-columns:230px 1fr auto;gap:26px;align-items:center;padding:17px;background:var(--white);border:1px solid var(--line);border-radius:20px;transition:.22s}
    .story-card:hover{transform:translateY(-3px);border-color:#a7bfa9;box-shadow:var(--shadow)}
    .story-visual{height:150px;border-radius:13px;position:relative;overflow:hidden;background:#dceadd}
    .story-visual:before,.story-visual:after{content:"";position:absolute;border-radius:50%}
    .story-visual:before{width:155px;height:155px;border:18px solid rgba(24,61,53,.15);right:-43px;bottom:-62px}
    .story-visual:after{width:58px;height:58px;background:var(--orange);left:27px;top:28px;box-shadow:80px 36px 0 -12px var(--ink)}
    .story-visual.v2{background:#efe5d6}.story-visual.v2:after{background:var(--ink);box-shadow:78px 42px 0 -12px var(--orange)}
    .story-visual.v3{background:#dbe9e2}.story-visual.v3:after{background:#77a985;box-shadow:78px 42px 0 -12px var(--orange)}
    .story-visual.v4{background:#e8edf1}.story-visual.v4:after{background:var(--orange);box-shadow:78px 42px 0 -12px #709c91}
    .story-visual.v5{background:#f3e7da}.story-visual.v5:after{background:#355e54;box-shadow:78px 42px 0 -12px var(--orange)}
    .story-visual.v6{background:#dfeee6}.story-visual.v6:after{background:var(--orange);box-shadow:78px 42px 0 -12px #35675a}
    .story-body{min-width:0}
    .story-top{display:flex;align-items:center;gap:11px;margin-bottom:7px}
    .story-date{font-size:13px;color:var(--muted)}
    .story-body h3{margin:0 0 7px;font-size:21px;line-height:1.35;color:var(--ink)}
    .story-body p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .text-link{display:inline-flex;align-items:center;gap:7px;color:var(--ink);font-size:14px;font-weight:900;white-space:nowrap}
    .text-link:hover{color:var(--orange)}
    .all-link{margin-top:27px;display:flex;justify-content:center}
    .process-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:72px;align-items:start}
    .process-note{position:sticky;top:95px}
    .process-note h2{font-size:38px;line-height:1.28;margin:12px 0 17px;color:var(--ink)}
    .process-list{position:relative;padding-left:48px}
    .process-list:before{content:"";position:absolute;left:16px;top:14px;bottom:14px;width:1px;background:#b7cdb9}
    .process-item{position:relative;padding:0 0 40px}
    .process-item:last-child{padding-bottom:0}
    .process-index{position:absolute;left:-48px;top:0;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:var(--ink);color:#fff;font-size:13px;font-weight:900;z-index:1}
    .process-item:nth-child(2) .process-index{background:var(--orange)}
    .process-item:nth-child(3) .process-index{background:#618f69}
    .process-item h3{margin:0 0 7px;font-size:23px;color:var(--ink)}
    .process-item p{margin:0;color:var(--muted)}
    .experience-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .experience-card{padding:28px 22px;border-radius:var(--radius);background:var(--white);border:1px solid var(--line);transition:.22s}
    .experience-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#a5bda8}
    .experience-icon{width:48px;height:48px;margin-bottom:22px;border-radius:14px;background:var(--sage);color:var(--ink);display:grid;place-items:center;font-size:22px;font-weight:900}
    .experience-card:nth-child(2) .experience-icon{background:#fee8dc;color:var(--orange)}
    .experience-card:nth-child(3) .experience-icon{background:#dfece1}
    .experience-card:nth-child(4) .experience-icon{background:#ece5d8}
    .experience-card h3{font-size:20px;margin:0 0 8px;color:var(--ink)}
    .experience-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
    .faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:62px;align-items:start}
    .faq-copy h2{font-size:38px;line-height:1.28;margin:11px 0 16px;color:var(--ink)}
    .faq-list{display:grid;gap:11px}
    .faq-item{background:var(--white);border:1px solid var(--line);border-radius:14px;overflow:hidden}
    .faq-q{width:100%;min-height:67px;padding:18px 20px;border:0;background:transparent;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;color:var(--ink);font-size:16px;font-weight:800}
    .faq-q i{width:26px;height:26px;border-radius:50%;background:var(--sage);font-style:normal;display:grid;place-items:center;font-size:20px;font-weight:400;transition:.25s}
    .faq-q[aria-expanded="true"] i{background:var(--orange);color:#fff;transform:rotate(45deg)}
    .faq-a{display:none;padding:0 52px 20px 20px;color:var(--muted);font-size:14px;line-height:1.8}
    .faq-item.open .faq-a{display:block}
    .closing{padding:73px 0;background:var(--ink);overflow:hidden;color:#fff}
    .closing-box{display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative}
    .closing-box:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(185,217,190,.35);border-radius:50%;right:-80px;bottom:-155px}
    .closing h2{margin:10px 0;font-size:38px;line-height:1.28;color:#fff}
    .closing p{margin:0;color:#cbdcd0;max-width:650px}
    .closing .eyebrow{color:var(--mint)}
    .footer{background:#173a32;color:#d6e3d9;padding:68px 0 20px}
    .footer .logo{color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.55fr repeat(4,1fr);gap:36px;padding-bottom:48px}
    .footer p{margin:17px 0 0;max-width:290px;font-size:14px;color:#b9cec0;line-height:1.8}
    .footer h3{margin:0 0 15px;font-size:14px;color:#fff}
    .footer ul{padding:0;margin:0;list-style:none}
    .footer li{margin:8px 0}
    .footer li a{font-size:13px;color:#b9cec0;transition:.2s}
    .footer li a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(220,228,221,.18);padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:13px;color:#acc2b4}
    @media (max-width:1024px){
      .topic-hero h1{font-size:48px}
      .topic-hero-grid,.process-wrap,.faq-layout{gap:38px}
      .story-card{grid-template-columns:190px 1fr}
      .story-card .text-link{grid-column:2}
      .channel-grid,.experience-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.5fr repeat(2,1fr)}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,var(--max))}
      .section{padding:64px 0}
      .site-header{height:66px}
      .logo{min-width:0;font-size:14px}
      .nav{display:none;position:absolute;left:0;right:0;top:66px;padding:18px 16px 22px;background:var(--white);border-bottom:1px solid var(--line);box-shadow:0 12px 22px rgba(24,61,53,.08);grid-template-columns:repeat(2,1fr);gap:6px}
      .nav.show{display:grid}
      .nav a{padding:10px 7px}
      .nav a:after{bottom:4px}
      .nav-actions .btn{min-height:42px;padding:0 12px;font-size:13px}
      .menu-toggle{display:block}
      .topic-hero{padding:51px 0 56px}
      .topic-hero-grid,.process-wrap,.faq-layout{grid-template-columns:1fr}
      .topic-hero h1{font-size:39px}
      .node-board{min-height:285px}
      .section-head{display:block;margin-bottom:30px}
      .section-head h2,.process-note h2,.faq-copy h2,.closing h2{font-size:31px}
      .section-head p{margin-top:13px}
      .process-note{position:static}
      .story-card{grid-template-columns:155px 1fr;gap:17px}
      .story-visual{height:126px}
      .story-body h3{font-size:18px}
      .story-body p{font-size:13px}
      .closing-box{display:block}
      .closing .btn{margin-top:24px}
      .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .nav-actions .btn{display:none}
      .topic-hero h1{font-size:34px}
      .lead{font-size:15px}
      .node-board{min-height:238px}
      .node-main{left:37px;top:75px;width:90px;height:90px}
      .node-small{width:58px;height:58px;font-size:10px}
      .node-a{right:33px;top:35px}.node-b{right:26px;bottom:33px}.node-c{left:55px;bottom:18px}
      .line-one{left:78px;top:91px;width:145px}.line-two{left:106px;top:157px;width:112px}
      .channel-grid,.experience-grid{grid-template-columns:1fr}
      .channel-link{min-height:125px}
      .story-card{display:block;padding:13px}
      .story-visual{height:160px;margin-bottom:16px}
      .story-card .text-link{margin-top:13px}
      .process-list{padding-left:43px}
      .process-index{left:-43px}
      .faq-q{font-size:15px;padding:16px}
      .faq-a{padding:0 18px 18px}
      .footer{padding-top:52px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .copyright{display:block}
      .copyright span{display:block;margin:4px 0}
    }

/* roulang page: category2 */
:root{
      --ink:#183d35;--ink-2:#245248;--orange:#f36a32;--orange-dark:#d95420;
      --mint:#b9d9be;--sage:#eff4ed;--sand:#f4eee4;--paper:#faf8f3;
      --white:#fffdf9;--text:#21352f;--muted:#687870;--line:#dce4dd;
      --radius:18px;--radius-sm:11px;--shadow:0 12px 32px rgba(24,61,53,.09);
      --shadow-lg:0 22px 52px rgba(24,61,53,.16);--max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
    .section{padding:94px 0;position:relative}
    .section-soft{background:var(--sage)}
    .section-sand{background:var(--sand)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
    .lead{margin:15px 0 0;color:var(--muted);font-size:17px;line-height:1.9;max-width:670px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:38px}
    .section-head h2,.section-title{margin:10px 0 0;color:var(--ink);font-size:38px;line-height:1.28;font-weight:900;letter-spacing:-.03em}
    .section-head p{max-width:510px;margin:0;color:var(--muted)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:11px;background:var(--ink);color:#fff;font-weight:800;transition:.22s ease}
    .btn:hover{transform:translateY(-2px);background:var(--ink-2);box-shadow:0 10px 20px rgba(24,61,53,.19);color:#fff}
    .btn:focus,.menu-toggle:focus,.faq-question:focus{outline:3px solid rgba(243,106,50,.3);outline-offset:3px}
    .btn:active{transform:translateY(0)}
    .btn-orange{background:var(--orange)}
    .btn-orange:hover{background:var(--orange-dark)}
    .btn-outline{background:transparent;color:var(--ink);border-color:#a9bbb0}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .tag{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:50px;background:#e3eee4;color:var(--ink);font-size:12px;font-weight:800}
    .site-header{height:72px;background:rgba(255,253,249,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
    .site-header.compact{height:60px;box-shadow:0 4px 18px rgba(24,61,53,.06)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--ink);font-weight:900;line-height:1.25}
    .logo-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);position:relative;overflow:hidden;flex:0 0 auto}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:50%}
    .logo-mark:before{width:21px;height:21px;left:5px;top:5px}
    .logo-mark:after{width:9px;height:9px;right:3px;bottom:3px;background:var(--orange);border:0}
    .nav{display:flex;align-items:center;gap:25px}
    .nav a{font-size:14px;color:#4d625b;font-weight:700;position:relative;white-space:nowrap}
    .nav a:after{content:"";height:2px;width:0;background:var(--orange);position:absolute;left:0;bottom:-8px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--ink)}
    .nav a:hover:after,.nav a.active:after{width:100%}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:21px}
    .page-hero{padding:64px 0 70px;background:linear-gradient(135deg,#eff4ed 0%,#faf8f3 57%,#f4eee4 100%);overflow:hidden}
    .page-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
    .crumb{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:24px;font-size:13px;color:var(--muted)}
    .crumb span:last-child{color:var(--ink);font-weight:800}
    h1{margin:14px 0 18px;color:var(--ink);font-size:56px;line-height:1.18;letter-spacing:-.05em;font-weight:900}
    .hero-copy .lead{max-width:620px}
    .version-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:28px}
    .version-chip{padding:6px 12px;background:var(--white);border:1px solid var(--line);border-radius:50px;color:var(--ink);font-size:13px;font-weight:800}
    .app-composition{height:385px;position:relative}
    .device-shell{position:absolute;width:218px;height:355px;right:20%;top:6px;padding:14px;border:8px solid #15372f;border-radius:32px;background:var(--white);box-shadow:var(--shadow-lg);transform:rotate(5deg)}
    .device-notch{width:76px;height:13px;margin:0 auto 15px;border-radius:0 0 10px 10px;background:#15372f}
    .phone-topline{height:9px;width:52%;border-radius:50px;background:#d7e7d8;margin:0 0 14px}
    .phone-banner{height:126px;padding:17px;border-radius:16px;background:var(--orange);color:#fff;position:relative;overflow:hidden}
    .phone-banner:after{content:"";width:130px;height:130px;position:absolute;right:-47px;bottom:-52px;border:2px solid #ffe0cf;border-radius:50%}
    .phone-banner b{display:block;position:relative;z-index:1;font-size:18px;line-height:1.3}
    .phone-banner small{position:relative;z-index:1;font-size:11px}
    .phone-line{height:36px;border-radius:10px;background:#edf3ea;margin-top:11px}
    .phone-line.short{width:68%}
    .floating-label{position:absolute;padding:12px 15px;background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);font-size:13px;font-weight:800;color:var(--ink)}
    .floating-label small{display:block;font-weight:500;color:var(--muted);font-size:11px}
    .label-one{top:53px;left:12px}
    .label-two{right:0;bottom:44px}
    .orbit{position:absolute;width:340px;height:340px;right:1%;top:21px;border:1px solid #bfd4c0;border-radius:50%}
    .orbit:after{content:"";position:absolute;width:12px;height:12px;left:13px;top:52px;border-radius:50%;background:var(--orange)}
    .capability-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white)}
    .capability{padding:27px 25px;border-right:1px solid var(--line);min-height:176px}
    .capability:last-child{border:0}
    .icon-box{width:42px;height:42px;display:grid;place-items:center;margin-bottom:18px;border-radius:12px;background:var(--sage);color:var(--ink)}
    .icon-box svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
    .capability h3{margin:0 0 8px;font-size:18px;font-weight:900}
    .capability p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .content-layout{display:grid;grid-template-columns:1fr;gap:18px}
    .content-card{display:grid;grid-template-columns:255px 1fr auto;gap:28px;align-items:center;padding:16px 20px 16px 16px;border:1px solid var(--line);border-radius:18px;background:var(--white);transition:.22s ease}
    .content-card:hover{transform:translateY(-3px);border-color:#9fbdA5;box-shadow:var(--shadow)}
    .content-image{height:155px;border-radius:13px;overflow:hidden;position:relative;background:#dae9da}
    .content-image:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(24,61,53,.12),transparent)}
    .image-a{background:linear-gradient(135deg,#b9d9be,#e9eee2)}
    .image-b{background:linear-gradient(135deg,#f7c4a9,#f4eee4)}
    .image-c{background:linear-gradient(135deg,#c7ddd0,#dfe9e0)}
    .image-d{background:linear-gradient(135deg,#eed6bd,#fff5ea)}
    .image-e{background:linear-gradient(135deg,#c7dfe2,#edf5f3)}
    .image-f{background:linear-gradient(135deg,#d5e5cb,#f5efe5)}
    .abstract-shape{position:absolute;width:106px;height:106px;right:15px;bottom:-24px;border:2px solid rgba(24,61,53,.3);border-radius:30px;transform:rotate(28deg)}
    .abstract-dot{position:absolute;width:44px;height:44px;left:28px;top:31px;border-radius:50%;background:var(--orange)}
    .content-meta{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px}
    .content-card h3{margin:11px 0 7px;color:var(--ink);font-size:21px;font-weight:900;line-height:1.4}
    .content-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .text-link{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;color:var(--ink);font-size:14px;font-weight:900}
    .text-link:hover{color:var(--orange)}
    .list-more{text-align:center;margin-top:34px}
    .install-panel{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
    .steps{display:grid;gap:17px;margin-top:32px}
    .step{display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start}
    .step-num{width:48px;height:48px;display:grid;place-items:center;border-radius:50%;background:var(--ink);color:#fff;font-size:15px;font-weight:900}
    .step h3{margin:2px 0 5px;font-size:19px;font-weight:900}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .download-card{padding:30px;border-radius:22px;background:var(--ink);color:#fff;position:relative;overflow:hidden}
    .download-card:before{content:"";position:absolute;width:210px;height:210px;border:1px solid #709785;border-radius:50%;right:-58px;top:-56px}
    .qr-wrap{display:flex;align-items:center;gap:22px;position:relative;z-index:1}
    .qr{width:132px;height:132px;flex:0 0 auto;padding:11px;border-radius:13px;background:#fff;display:grid;grid-template-columns:repeat(7,1fr);grid-template-rows:repeat(7,1fr);gap:3px}
    .qr i{background:#183d35;border-radius:1px}
    .qr i:nth-child(3n),.qr i:nth-child(5n+1){visibility:hidden}
    .download-card h3{margin:0 0 8px;font-size:24px;font-weight:900}
    .download-card p{margin:0;color:#d6e3d7;font-size:14px;line-height:1.75}
    .download-card .btn{margin-top:20px}
    .device-track{display:grid;grid-template-columns:.85fr 1.2fr;gap:62px;align-items:center}
    .device-copy-list{display:grid;gap:13px;margin-top:28px}
    .device-copy-item{display:flex;gap:13px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line)}
    .device-copy-item:last-child{border:0}
    .device-copy-item b{color:var(--orange);font-size:14px}
    .device-copy-item p{margin:0;color:var(--muted);font-size:14px}
    .devices{height:306px;position:relative}
    .desktop-device{position:absolute;right:2%;top:17px;width:335px;height:215px;padding:14px;border:8px solid var(--ink);border-radius:15px 15px 5px 5px;background:#fff}
    .desktop-device:after{content:"";position:absolute;width:93px;height:12px;left:50%;bottom:-19px;transform:translateX(-50%);border-radius:0 0 10px 10px;background:var(--ink)}
    .screen-nav{height:11px;width:38%;border-radius:50px;background:#d7e7d8}
    .screen-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:9px;margin-top:13px}
    .screen-main{height:144px;border-radius:9px;background:var(--sage)}
    .screen-side{display:grid;gap:9px}
    .screen-side span{border-radius:9px;background:#f5dfd0}
    .tablet-device{position:absolute;left:11%;bottom:0;width:179px;height:227px;padding:10px;border:7px solid #224c42;border-radius:19px;background:#fff;transform:rotate(-9deg);box-shadow:var(--shadow)}
    .tablet-device div{height:100%;border-radius:8px;background:linear-gradient(145deg,#e8f0e4 45%,#f7b18c 45%)}
    .tip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .tip-card{padding:25px;border:1px solid var(--line);border-radius:16px;background:var(--white)}
    .tip-card h3{margin:15px 0 8px;font-size:19px;font-weight:900}
    .tip-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .tip-card .icon-box{margin:0}
    .download-cta{padding:0}
    .download-cta-inner{padding:52px 62px;border-radius:24px;background:var(--ink);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:32px;position:relative;overflow:hidden}
    .download-cta-inner:after{content:"";width:310px;height:310px;border:1px solid #5f8978;border-radius:50%;position:absolute;right:-86px;bottom:-180px}
    .download-cta h2{margin:10px 0 9px;color:#fff;font-size:34px;font-weight:900;line-height:1.25;position:relative;z-index:1}
    .download-cta p{margin:0;color:#d6e3d7;position:relative;z-index:1}
    .download-cta .eyebrow{color:var(--mint);position:relative;z-index:1}
    .download-cta-actions{display:flex;gap:13px;align-items:center;flex-wrap:wrap;position:relative;z-index:1}
    .download-cta-actions .service-link{font-size:14px;color:#d8e5d9;text-decoration:underline;text-underline-offset:4px}
    .footer{margin-top:94px;padding:70px 0 22px;background:#16352e;color:#d3e0d4}
    .footer-grid{display:grid;grid-template-columns:1.55fr repeat(4,1fr);gap:34px;padding-bottom:48px}
    .footer .logo{color:#fff;margin-bottom:19px}
    .footer p{max-width:285px;margin:0;color:#b9cbc0;font-size:14px;line-height:1.8}
    .footer h3{margin:0 0 15px;color:#fff;font-size:15px;font-weight:900}
    .footer ul{margin:0;padding:0;list-style:none}
    .footer li{margin:0 0 9px}
    .footer li a{color:#b9cbc0;font-size:14px;transition:.2s}
    .footer li a:hover{color:#fff}
    .copyright{padding-top:20px;border-top:1px solid rgba(215,233,218,.18);display:flex;justify-content:space-between;gap:20px;color:#a6bcae;font-size:13px}
    @media(max-width:1050px){
      .nav{gap:16px}
      .nav a{font-size:13px}
      .page-hero-grid,.install-panel,.device-track{gap:34px}
      .content-card{grid-template-columns:210px 1fr}
      .content-card .text-link{grid-column:2}
      .capability{padding:22px 17px}
      .footer-grid{grid-template-columns:repeat(3,1fr)}
      .footer-grid>div:first-child{grid-column:span 3}
    }
    @media(max-width:780px){
      .container{width:min(var(--max),calc(100% - 32px))}
      .section{padding:66px 0}
      .site-header{height:66px}
      .nav{display:none;position:absolute;left:0;right:0;top:65px;padding:18px 24px 23px;background:var(--white);border-bottom:1px solid var(--line);box-shadow:0 12px 22px rgba(24,61,53,.08);grid-template-columns:1fr 1fr;gap:5px}
      .nav.open{display:grid}
      .nav a{padding:10px 5px;font-size:14px}
      .nav a:after{bottom:4px}
      .menu-toggle{display:inline-grid;place-items:center}
      .nav-actions .btn{min-height:42px;padding:0 13px;font-size:13px}
      .logo{min-width:0;font-size:14px}
      .page-hero{padding:44px 0 48px}
      .page-hero-grid,.install-panel,.device-track{grid-template-columns:1fr}
      h1{font-size:42px}
      .app-composition{max-width:470px;width:100%;margin:0 auto;height:350px}
      .section-head{display:block;margin-bottom:30px}
      .section-head p{margin-top:14px}
      .section-head h2,.section-title{font-size:31px}
      .capability-grid{grid-template-columns:1fr 1fr}
      .capability:nth-child(2){border-right:0}
      .capability:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .content-card{grid-template-columns:185px 1fr;gap:18px}
      .devices{max-width:510px;width:100%;margin:0 auto}
      .tip-grid{grid-template-columns:1fr}
      .download-cta-inner{display:block;padding:39px 30px}
      .download-cta-actions{margin-top:23px}
      .footer{margin-top:66px}
      .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
      .footer-grid>div:first-child{grid-column:span 2}
    }
    @media(max-width:520px){
      body{font-size:15px}
      .container{width:calc(100% - 28px)}
      .nav-actions .btn{display:none}
      .page-hero{padding-top:36px}
      h1{font-size:35px}
      .lead{font-size:15px}
      .app-composition{height:305px}
      .device-shell{width:185px;height:300px;right:12%;padding:11px;border-width:7px}
      .phone-banner{height:105px;padding:13px}
      .phone-banner b{font-size:15px}
      .phone-line{height:28px;margin-top:8px}
      .label-one{left:0;top:30px}
      .label-two{right:0;bottom:16px}
      .floating-label{padding:9px 11px;font-size:11px}
      .orbit{width:270px;height:270px;right:-7%;top:19px}
      .capability-grid{grid-template-columns:1fr}
      .capability{border-right:0!important;border-bottom:1px solid var(--line)!important}
      .capability:last-child{border-bottom:0!important}
      .content-card{display:block;padding:13px}
      .content-image{height:158px;margin-bottom:16px}
      .content-card h3{font-size:19px}
      .content-card .text-link{margin-top:13px}
      .qr-wrap{display:block}
      .qr{margin-bottom:20px}
      .download-card{padding:25px}
      .devices{height:257px}
      .desktop-device{width:245px;height:160px;right:0}
      .screen-main{height:96px}
      .tablet-device{width:130px;height:168px;left:1%;bottom:7px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:span 2}
      .copyright{display:block}
      .copyright span{display:block;margin-bottom:5px}
    }

/* roulang page: category3 */
:root{
      --ink:#183d35;--ink-2:#245248;--orange:#f36a32;--orange-dark:#d95420;
      --mint:#b9d9be;--sage:#eff4ed;--sand:#f4eee4;--paper:#faf8f3;
      --white:#fffdf9;--text:#21352f;--muted:#687870;--line:#dce4dd;
      --radius:18px;--radius-sm:11px;--shadow:0 12px 32px rgba(24,61,53,.09);
      --shadow-lg:0 22px 52px rgba(24,61,53,.16);--max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--max),calc(100% - 48px));margin:0 auto}
    .section{padding:94px 0;position:relative}
    .section-soft{background:var(--sage)}
    .section-sand{background:var(--sand)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--orange)}
    .section-title{margin:12px 0 14px;color:var(--ink);font-size:clamp(31px,4vw,45px);line-height:1.25;letter-spacing:-.035em}
    .lead{margin:0;color:var(--muted);font-size:17px;line-height:1.9;max-width:680px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:25px;margin-bottom:42px}
    .section-head .lead{max-width:530px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border:1px solid transparent;border-radius:11px;background:var(--ink);color:#fff;font-weight:800;transition:.22s ease}
    .btn:hover{transform:translateY(-2px);background:var(--ink-2);box-shadow:0 10px 20px rgba(24,61,53,.19);color:#fff}
    .btn:active{transform:translateY(0)}
    .btn-orange{background:var(--orange)}
    .btn-orange:hover{background:var(--orange-dark)}
    .btn-outline{background:transparent;color:var(--ink);border-color:#a9bbb0}
    .btn-outline:hover{background:#fff;color:var(--ink)}
    .tag{display:inline-flex;align-items:center;min-height:27px;padding:3px 10px;border-radius:50px;background:#e3eee4;color:var(--ink);font-size:12px;font-weight:800}
    .site-header{height:72px;background:rgba(255,253,249,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;transition:.25s}
    .site-header.compact{height:60px;box-shadow:0 4px 18px rgba(24,61,53,.06)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--ink);font-weight:900;line-height:1.25}
    .logo-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);position:relative;overflow:hidden;flex:0 0 auto}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;border:2px solid var(--mint);border-radius:50%}
    .logo-mark:before{width:21px;height:21px;left:5px;top:5px}
    .logo-mark:after{width:9px;height:9px;right:3px;bottom:3px;background:var(--orange);border:0}
    .nav{display:flex;align-items:center;gap:25px}
    .nav a{font-size:14px;color:#4d625b;font-weight:700;position:relative;white-space:nowrap}
    .nav a:after{content:"";height:2px;width:0;background:var(--orange);position:absolute;left:0;bottom:-8px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--ink)}
    .nav a:hover:after,.nav a.active:after{width:100%}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:21px}
    .page-intro{padding:64px 0 72px;background:linear-gradient(115deg,#f8f4ec 0%,#edf3e9 55%,#dce8dc 100%);overflow:hidden}
    .intro-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:58px;align-items:center}
    .page-intro h1{margin:13px 0 20px;font-size:clamp(39px,5.2vw,61px);line-height:1.16;letter-spacing:-.055em;color:var(--ink)}
    .intro-note{display:flex;align-items:center;gap:13px;margin-top:28px;font-size:14px;color:var(--muted)}
    .pulse-dot{width:11px;height:11px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 7px rgba(243,106,50,.14)}
    .editor-board{height:342px;border-radius:24px;background:var(--ink);padding:24px;position:relative;overflow:hidden;box-shadow:var(--shadow-lg)}
    .editor-board:before{content:"";position:absolute;width:250px;height:250px;border:1px solid rgba(185,217,190,.45);border-radius:50%;right:-70px;top:-76px}
    .editor-board:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(185,217,190,.35);border-radius:50%;left:-92px;bottom:-90px}
    .board-top{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1;color:#d5e5d7;font-size:12px;letter-spacing:.08em}
    .board-date{padding:5px 10px;background:rgba(255,255,255,.11);border-radius:30px;color:#fff;font-weight:800}
    .cover-sheet{position:absolute;z-index:2;left:36px;right:36px;top:78px;height:206px;border-radius:17px;background:var(--white);padding:19px;box-shadow:0 13px 24px rgba(0,0,0,.17);transform:rotate(-2deg)}
    .cover-lines{display:grid;gap:9px;margin-top:19px}
    .cover-lines span{height:10px;border-radius:20px;background:#dce8dc}
    .cover-lines span:nth-child(1){width:45%;background:var(--orange)}
    .cover-lines span:nth-child(3){width:75%}
    .cover-squares{display:grid;grid-template-columns:1.3fr .7fr;gap:11px;margin-top:19px}
    .cover-squares span{display:block;height:62px;border-radius:12px;background:#d3e4d4}
    .cover-squares span:last-child{background:var(--sand)}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .topic-card{padding:23px 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);min-height:182px;display:flex;flex-direction:column;transition:.22s ease}
    .topic-card:hover{transform:translateY(-4px);border-color:#a9c3ae;box-shadow:var(--shadow)}
    .topic-icon{width:42px;height:42px;border-radius:12px;background:var(--sage);display:grid;place-items:center;color:var(--ink);font-weight:900;font-size:17px;margin-bottom:16px}
    .topic-card h3{font-size:18px;margin:0 0 8px;color:var(--ink)}
    .topic-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
    .topic-card .small-arrow{margin-top:auto;padding-top:11px;color:var(--orange);font-weight:900}
    .timeline-shell{position:relative}
    .timeline-shell:before{content:"";width:1px;background:#bfd0c1;position:absolute;top:22px;bottom:74px;left:50%;transform:translateX(-.5px)}
    .news-row{position:relative;display:grid;grid-template-columns:1fr 66px 1fr;gap:26px;align-items:center;margin-bottom:27px}
    .news-row:nth-child(even) .news-card{grid-column:3}
    .news-row:nth-child(even) .news-date{grid-column:1;grid-row:1;text-align:right}
    .news-date{font-size:13px;color:var(--muted);font-weight:800;letter-spacing:.04em}
    .news-node{grid-column:2;grid-row:1;width:20px;height:20px;justify-self:center;border:5px solid var(--paper);background:var(--orange);border-radius:50%;position:relative;z-index:1}
    .news-card{grid-column:1;grid-row:1;display:grid;grid-template-columns:132px 1fr;gap:19px;padding:14px;border:1px solid var(--line);background:var(--white);border-radius:var(--radius);transition:.22s}
    .news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#acc4b0}
    .thumb{height:105px;border-radius:12px;background:#d8e8d9;position:relative;overflow:hidden}
    .thumb:before{content:"";position:absolute;width:102px;height:102px;border:2px solid rgba(24,61,53,.26);border-radius:50%;left:-29px;top:-21px}
    .thumb:after{content:"";position:absolute;width:49px;height:49px;border-radius:13px;background:var(--orange);right:11px;bottom:11px;opacity:.85}
    .thumb.t2{background:#f0ddcf}.thumb.t2:after{background:#6f9d79}.thumb.t3{background:#dbe8e5}.thumb.t3:after{background:#e5b759}.thumb.t4{background:#e4ecd9}.thumb.t4:after{background:#466e63}
    .thumb.t5{background:#eddfd4}.thumb.t5:after{background:#f36a32}.thumb.t6{background:#d8e8df}.thumb.t6:after{background:#60917b}.thumb.t7{background:#e6e1d3}.thumb.t7:after{background:#df8558}.thumb.t8{background:#d9e5d8}.thumb.t8:after{background:#57796a}
    .news-content .tag{margin-bottom:7px;font-size:11px;min-height:23px}
    .news-content h3{font-size:18px;line-height:1.45;margin:0 0 6px;color:var(--ink)}
    .news-content p{font-size:13px;line-height:1.65;color:var(--muted);margin:0 0 8px}
    .article-link{font-size:13px;color:var(--ink);font-weight:800;display:inline-flex;align-items:center;gap:7px}
    .article-link:hover{color:var(--orange)}
    .more-wrap{text-align:center;padding-top:18px}
    .feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:23px}
    .feature-card{min-height:290px;border-radius:20px;padding:31px;position:relative;overflow:hidden;background:var(--white);border:1px solid var(--line);display:flex;flex-direction:column}
    .feature-card.feature-dark{background:var(--ink);border-color:var(--ink);color:#fff}
    .feature-card.feature-dark p{color:#c9dbcd}
    .feature-card:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(185,217,190,.58);border-radius:50%;right:-65px;bottom:-74px}
    .feature-number{font-size:13px;color:var(--orange);font-weight:900;letter-spacing:.1em}
    .feature-card h3{position:relative;z-index:1;margin:17px 0 12px;font-size:26px;line-height:1.35}
    .feature-card p{position:relative;z-index:1;color:var(--muted);margin:0;max-width:410px}
    .feature-card .article-link{position:relative;z-index:1;margin-top:auto;padding-top:24px}
    .feature-dark .article-link{color:#fff}
    .cadence-grid{display:grid;grid-template-columns:.84fr 1.16fr;gap:54px;align-items:center}
    .calendar-card{background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:23px}
    .calendar-head{display:flex;justify-content:space-between;align-items:center;padding-bottom:16px;border-bottom:1px solid var(--line);font-weight:900;color:var(--ink)}
    .calendar-head span:last-child{color:var(--orange);font-size:13px}
    .calendar-days{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;padding-top:18px}
    .calendar-days span{height:34px;display:grid;place-items:center;border-radius:9px;font-size:12px;color:var(--muted)}
    .calendar-days .active-day{background:var(--ink);color:#fff;font-weight:800}
    .calendar-days .orange-day{background:#ffe2d4;color:var(--orange-dark);font-weight:900}
    .cadence-list{display:grid;gap:14px}
    .cadence-item{display:grid;grid-template-columns:58px 1fr;gap:18px;align-items:start;padding:15px 0;border-bottom:1px solid #d8e1d8}
    .cadence-item:last-child{border-bottom:0}
    .cadence-label{display:grid;place-items:center;width:58px;height:47px;border-radius:12px;background:var(--ink);color:#fff;font-size:13px;font-weight:900}
    .cadence-item:nth-child(2) .cadence-label{background:var(--orange)}
    .cadence-item:nth-child(3) .cadence-label{background:#76a27e}
    .cadence-item h3{margin:0 0 3px;font-size:17px;color:var(--ink)}
    .cadence-item p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}
    .reading-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .reading-card{border-radius:18px;padding:27px;background:var(--white);border:1px solid var(--line);min-height:210px}
    .reading-card .read-index{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--sage);color:var(--ink);font-size:13px;font-weight:900;margin-bottom:17px}
    .reading-card h3{font-size:19px;margin:0 0 9px;color:var(--ink)}
    .reading-card p{font-size:14px;line-height:1.75;color:var(--muted);margin:0}
    .download-panel{padding:55px 60px;border-radius:24px;background:var(--ink);position:relative;overflow:hidden;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:35px}
    .download-panel:before{content:"";position:absolute;right:9%;top:-130px;width:300px;height:300px;border:1px solid rgba(185,217,190,.4);border-radius:50%}
    .download-panel:after{content:"";position:absolute;right:24%;bottom:-125px;width:245px;height:245px;border:1px solid rgba(185,217,190,.25);border-radius:50%}
    .download-panel h2{position:relative;z-index:1;margin:10px 0;font-size:clamp(28px,3vw,39px);line-height:1.25}
    .download-panel p{position:relative;z-index:1;max-width:590px;margin:0;color:#c9dbcd}
    .download-actions{position:relative;z-index:1;display:flex;align-items:center;gap:12px;flex-wrap:wrap;flex:0 0 auto}
    .download-actions .btn-outline{border-color:#829c89;color:#fff}
    .download-actions .btn-outline:hover{background:#fff;color:var(--ink)}
    .footer{padding:71px 0 21px;background:#132f29;color:#d9e4dc}
    .footer .logo{color:#fff;margin-bottom:18px}
    .footer .logo-mark{background:#f0f4ec}
    .footer .logo-mark:before{border-color:var(--ink)}
    .footer p{font-size:14px;line-height:1.8;color:#b8c9bc;max-width:255px;margin:0}
    .footer-grid{display:grid;grid-template-columns:1.55fr repeat(4,1fr);gap:28px}
    .footer h3{font-size:14px;color:#fff;margin:4px 0 16px}
    .footer ul{list-style:none;padding:0;margin:0}
    .footer li{margin:0 0 9px}
    .footer li a{font-size:13px;color:#b8c9bc;transition:.2s}
    .footer li a:hover{color:#fff}
    .copyright{margin-top:53px;padding-top:19px;border-top:1px solid rgba(221,234,228,.18);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12px;color:#93a99a}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(243,106,50,.45);outline-offset:3px}
    @media(max-width:1024px){
      .nav{gap:16px}.nav a{font-size:13px}.nav-actions .btn{padding:0 14px}
      .intro-grid,.cadence-grid{gap:34px}.topic-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}
    }
    @media(max-width:767px){
      .container{width:min(100% - 32px,var(--max))}.section{padding:61px 0}
      .site-header{height:65px}.nav-wrap{gap:11px}.logo{min-width:0;font-size:13px;gap:8px}.logo-mark{width:31px;height:31px}.nav-actions .btn{display:none}
      .menu-toggle{display:grid;place-items:center}.nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--white);padding:18px 20px 21px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);grid-template-columns:repeat(2,1fr);gap:6px}
      .nav.open{display:grid}.nav a{padding:11px 4px;font-size:14px}.nav a:after{bottom:5px}
      .page-intro{padding:46px 0 52px}.intro-grid{grid-template-columns:1fr;gap:30px}.page-intro h1{font-size:40px}.editor-board{height:272px}.cover-sheet{left:24px;right:24px;top:59px;height:174px}
      .section-head{display:block;margin-bottom:30px}.section-head .lead{margin-top:10px}.topic-grid,.feature-grid,.reading-grid{grid-template-columns:1fr}
      .topic-card{min-height:153px}.timeline-shell:before{left:10px;top:17px;bottom:48px}.news-row,.news-row:nth-child(even){display:grid;grid-template-columns:22px 1fr;gap:13px;margin-bottom:19px}.news-node{grid-column:1;grid-row:1;align-self:start;margin-top:21px}.news-date,.news-row:nth-child(even) .news-date{grid-column:2;grid-row:1;text-align:left;margin:0 0 -6px;padding-left:0}.news-card,.news-row:nth-child(even) .news-card{grid-column:2;grid-row:2;grid-template-columns:96px 1fr;gap:13px}.thumb{height:82px}.news-content h3{font-size:16px}.news-content p{display:none}
      .cadence-grid{grid-template-columns:1fr;gap:30px}.download-panel{padding:38px 25px;display:block}.download-actions{margin-top:24px}.footer{padding-top:54px}.footer-grid{grid-template-columns:repeat(2,1fr);gap:28px 18px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{margin-top:37px}
    }
    @media(max-width:420px){
      .page-intro h1{font-size:35px}.calendar-days{gap:5px}.calendar-days span{height:30px}.news-card,.news-row:nth-child(even) .news-card{grid-template-columns:1fr}.thumb{height:125px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
    }