/* roulang page: index */
:root{--primary:#122823;--accent:#d8f36a;--bg:#f5f6f0;--text:#182c26;--muted:#68736e;--line:#dce1d8;--radius:20px;--shadow:0 16px 40px #1228230b}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:115px}body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}img,svg{display:block;max-width:100%}::selection{background:var(--accent);color:var(--primary)}:focus-visible{outline:3px solid #769732;outline-offset:5px}a,button,.card{transition:background .2s,color .2s,transform .2s,box-shadow .2s}button:active,.btn:active{transform:translateY(1px)}.container{width:min(1180px,calc(100% - 64px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:40;background:#f5f6f0f5;backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-main{min-height:84px;display:flex;align-items:center;gap:42px}.brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:850;white-space:nowrap;letter-spacing:-.5px}.brand-mark{width:35px;height:35px;background:var(--primary);color:var(--accent);border-radius:10px;display:grid;place-items:center;font-size:22px}.nav{display:flex;align-items:center;gap:28px;margin-left:auto}.nav a{font-size:14px;font-weight:650;padding:29px 0 24px;border-bottom:3px solid transparent}.nav a:hover,.nav a.active{color:#42600e;border-color:#8bae38}.header-chip{font-size:12px;padding:7px 12px;border:1px solid var(--line);border-radius:7px;white-space:nowrap}.header-chip:hover{background:#e6eadf}
section{padding:76px 0;border-bottom:1px solid var(--line)}.hero{padding:52px 0 66px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:2px;text-transform:uppercase;color:#607741;display:flex;align-items:center;gap:10px}.eyebrow:before{content:"";width:23px;height:2px;background:currentColor}h1,h2,h3,p{margin:0}h1{font-size:clamp(38px,4.7vw,64px);line-height:1.14;letter-spacing:-2px;font-weight:850}h2{font-size:clamp(27px,3vw,37px);line-height:1.35;font-weight:800;letter-spacing:-1px}h3{font-size:19px;font-weight:750;line-height:1.5}.intro{color:var(--muted);font-size:15px;line-height:1.95;max-width:720px}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:flex-end;margin-bottom:32px}.section-head .intro{max-width:555px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:22px;padding:13px 22px;border-radius:8px;font-weight:700;font-size:14px;border:1px solid var(--primary);background:var(--primary);color:white}.btn:hover{background:#2b483d;box-shadow:var(--shadow);transform:translateY(-2px)}.btn-light{background:transparent;color:var(--primary);border-color:#b6c1b3}.btn-light:hover{background:#e5eada}.pill{display:inline-flex;align-items:center;gap:7px;border-radius:30px;padding:4px 10px;font-size:11px;font-weight:650;background:#e9eddc;color:#4c623a}.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:28px}.card:hover{box-shadow:var(--shadow);border-color:#b8c6a8}.card p{color:var(--muted);font-size:14px;margin-top:12px}.feature{background:var(--primary);color:white;overflow:hidden;border-radius:var(--radius);position:relative;min-height:420px;display:flex;flex-direction:column;justify-content:space-between;padding:30px}.feature-art{position:absolute;right:-20px;top:28px;width:280px;height:260px;opacity:.65}.feature-content{position:relative;z-index:1}.feature p{color:#c0cfc4}.metric{padding:24px 30px;border-left:1px solid var(--line)}.metric:first-child{border:0}.metric strong{display:block;font-size:39px;font-weight:700;letter-spacing:-2px;line-height:1.2}.metric span{display:block;color:var(--muted);font-size:13px;margin-top:12px}.num{font-size:12px;color:#799060;font-family:monospace}.iconbox{width:43px;height:43px;display:grid;place-items:center;border-radius:11px;background:#edf1e4;font-size:21px;margin-bottom:25px}.dark{background:var(--primary);color:white}.dark .intro{color:#b7c8bd}.dark .eyebrow{color:var(--accent)}.demo{background:#1c352c;border:1px solid #42604e;border-radius:18px;overflow:hidden}.demo-top{padding:17px 24px;border-bottom:1px solid #42604e;display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#c1d1c6}.team{border:1px solid #587060;border-radius:12px;padding:22px;background:#254035;color:white;text-align:left;width:100%}.team:hover{border-color:var(--accent);background:#304c3e}.team.selected{border-color:var(--accent);background:#354a2b;box-shadow:inset 0 0 0 1px var(--accent)}.team strong{display:block;font-size:20px;margin-bottom:7px}.team span{font-size:12px;color:#c6d2c8}.demo-message{padding:18px 24px;background:#142b23;color:#d8f36a;font-size:13px;min-height:60px}.compare-row{display:grid;grid-template-columns:120px 1fr 1fr;gap:25px;padding:23px 0;border-top:1px solid var(--line);font-size:14px}.compare-row p{color:var(--muted)}.compare-head{font-size:12px;font-weight:700;color:#71815c}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:40px}.timeline-item{border-top:2px solid #c6d2b3;padding-top:22px;position:relative}.timeline-item:before{content:"";position:absolute;top:-6px;left:0;background:#719342;width:10px;height:10px;border-radius:50%}.timeline-item p{font-size:13px;color:var(--muted);margin-top:12px}.news-item{display:grid;grid-template-columns:70px 1fr 32px;gap:22px;padding:26px 0;border-top:1px solid var(--line)}.news-item summary{cursor:pointer;list-style:none}.news-item summary::-webkit-details-marker{display:none}.news-item p{font-size:14px;color:var(--muted);margin-top:9px}.news-item .read{font-size:22px;color:#718644}.article-body{padding:18px 0 0;border-top:1px dashed var(--line);margin-top:20px!important}.guarantee{border-left:2px solid #8eaa64;padding-left:24px}.faq details{border-bottom:1px solid var(--line);padding:23px 0}.faq summary{font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:25px}.faq summary:after{content:"＋";color:#688044}.faq details[open] summary:after{content:"－"}.faq details p{max-width:840px;font-size:14px;line-height:1.9;color:var(--muted);padding-top:15px}.cta{background:var(--accent);border-radius:22px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta p{color:#42572c;font-size:14px;margin-top:10px}.site-footer{background:#eceedf;padding:42px 0 24px}.footer-links{display:flex;gap:24px;font-size:13px;flex-wrap:wrap}.footer-links a:hover{color:#64852c}.footer-bottom{margin-top:30px;padding-top:20px;border-top:1px solid #cfd6c1;color:#6a7561;font-size:12px;display:flex;justify-content:space-between;gap:20px}.notice{font-size:12px;color:#748064;line-height:1.9}
@media(min-width:1025px){.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:65px}}
@media(max-width:1024px){.container{width:calc(100% - 48px)}.header-main{gap:24px}.header-chip{display:none}.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:30px}.feature{min-height:450px;padding:24px}.section-head{align-items:flex-start;gap:25px}.section-head .intro{max-width:50%}.metric{padding:20px}.brand{font-size:17px}}
@media(max-width:768px){section{padding:52px 0}.hero-grid{grid-template-columns:1fr}.feature{min-height:330px}.feature-art{right:20px;top:0}.header-main{flex-wrap:wrap;gap:0;padding-top:16px}.nav{margin-left:0;width:100%;gap:26px}.nav a{padding:15px 0 12px}.section-head{display:block}.section-head .intro{max-width:100%;margin-top:20px}.timeline{grid-template-columns:repeat(2,1fr);gap:32px}.metric:nth-child(3){border:0}.cta{padding:30px;align-items:flex-start;flex-direction:column}.footer-bottom{flex-direction:column}.compare-row{grid-template-columns:80px 1fr 1fr;gap:15px;font-size:13px}}
@media(max-width:520px){.container{width:calc(100% - 36px)}h1{font-size:42px}.hero{padding-top:34px}.hero .intro{font-size:14px}.feature{min-height:320px}.metric{padding:20px 15px}.metric strong{font-size:32px}.card{padding:23px}.news-item{grid-template-columns:38px 1fr 18px;gap:10px}.compare-row{grid-template-columns:1fr 1fr}.compare-row>:first-child{grid-column:1/-1}.timeline{gap:24px}.btn{padding:12px 17px}.brand{font-size:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* roulang page: category1 */
:root{--primary:#122823;--accent:#d8f36a;--bg:#f5f6f0;--text:#182c26;--muted:#68736e;--line:#dce1d8;--radius:20px;--shadow:0 16px 40px #1228230b}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:112px}body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img,svg{display:block;max-width:100%}a,button,.card{transition:background .2s,color .2s,transform .2s,box-shadow .2s}button:active,.btn:active{transform:translateY(1px)}:focus-visible{outline:3px solid #82a340;outline-offset:5px}h1,h2,h3,p{margin:0}h2{font-size:clamp(25px,3vw,35px);font-weight:800;line-height:1.4;letter-spacing:-1px}h3{font-size:18px;font-weight:750;line-height:1.5}.container{width:min(1180px,calc(100% - 64px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:40;background:#f5f6f0f5;backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-main{min-height:84px;display:flex;align-items:center;gap:42px}.brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:850;white-space:nowrap;letter-spacing:-.5px}.brand-mark{width:35px;height:35px;background:var(--primary);color:var(--accent);border-radius:10px;display:grid;place-items:center;font-size:22px}.nav{display:flex;align-items:center;gap:28px;margin-left:auto}.nav a{font-size:14px;font-weight:650;padding:29px 0 24px;border-bottom:3px solid transparent}.nav a:hover,.nav a.active{color:#42600e;border-color:#8bae38}.header-chip{font-size:12px;padding:7px 12px;border:1px solid var(--line);border-radius:7px;white-space:nowrap}.header-chip:hover{background:#e6eadf}section{padding:76px 0;border-bottom:1px solid var(--line)}.hero{padding:32px 0 58px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:2px;color:#607741;display:flex;align-items:center;gap:10px}.eyebrow:before{content:"";width:23px;height:2px;background:currentColor}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:flex-end;margin-bottom:32px}.section-head .intro{max-width:480px;color:var(--muted);font-size:14px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:22px;padding:13px 22px;border-radius:8px;font-weight:700;font-size:14px;border:1px solid var(--primary);background:var(--primary);color:white}.btn:hover{background:#2b483d;box-shadow:var(--shadow);transform:translateY(-2px)}.btn-light{background:transparent;color:var(--primary);border-color:#b6c1b3}.btn-light:hover{background:#e5eada}.pill{display:inline-flex;align-items:center;gap:7px;border-radius:30px;padding:4px 10px;font-size:11px;font-weight:650;background:#e9eddc;color:#4c623a}.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:28px}.card:hover{box-shadow:var(--shadow);border-color:#b8c6a8}.card p{color:var(--muted);font-size:14px;margin-top:12px}.dark{background:var(--primary);color:#fff}.dark .eyebrow{color:var(--accent)}.dark .intro{color:#b9c9bf}.notice{font-size:13px;color:var(--muted)}.cta{background:var(--accent);border-radius:22px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta p{color:#42572c;font-size:14px;margin-top:10px}.site-footer{background:#eceedf;padding:42px 0 24px}.footer-links{display:flex;gap:24px;font-size:13px;flex-wrap:wrap}.footer-links a:hover{color:#64852c}.footer-bottom{margin-top:30px;padding-top:20px;border-top:1px solid #cfd6c1;color:#6a7561;font-size:12px;display:flex;justify-content:space-between;gap:20px}
.breadcrumb{display:flex;gap:12px;align-items:center;font-size:12px;color:var(--muted);margin-bottom:35px}.breadcrumb a:hover{color:#42600e}.hero-title{font-size:clamp(36px,5vw,62px);font-weight:850;letter-spacing:-2px;line-height:1.18;margin:20px 0}.hero-copy{font-size:16px;color:var(--muted);max-width:620px}.status-strip{display:flex;gap:24px;align-items:center;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:23px;margin-top:36px;font-size:12px;color:var(--muted)}.status-dot{width:7px;height:7px;display:inline-block;background:#7d993a;border-radius:50%;margin-right:7px}.icon-tile{border:1px solid var(--line);border-radius:14px;background:#edf0e5;padding:20px}.icon-tile svg{width:25px;height:25px;color:#52683a;margin-bottom:14px}.icon-tile strong{display:block;font-size:14px}.icon-tile span{font-size:11px;color:var(--muted)}.number{font-size:12px;font-weight:700;color:#6f8450;letter-spacing:1px}.accent-card{background:#e9efdb}.topic-row{display:grid;grid-template-columns:55px 180px 1fr;gap:20px;padding:25px 0;border-top:1px solid var(--line);align-items:start}.topic-row p{font-size:14px;color:var(--muted)}.topic-row:last-child{border-bottom:1px solid var(--line)}.bracket{border:1px solid #446055;border-radius:20px;padding:28px;background:#1b362d}.bracket-node{border:1px solid #496254;background:#244133;padding:16px 18px;border-radius:10px}.bracket-node small{color:#c2d3b3;display:block;font-size:11px;margin-bottom:5px}.bracket-line{height:30px;width:1px;background:#8faa67;margin:auto}.bracket-end{background:var(--accent);color:var(--primary);text-align:center;padding:17px;border-radius:10px;font-weight:700}.evidence-list{list-style:none;padding:0;margin:0}.evidence-list li{padding:18px 0;border-bottom:1px solid #345043;display:flex;gap:15px;font-size:14px;color:#cedacf}.evidence-list b{color:var(--accent);font-weight:500}.review-band{display:grid;grid-template-columns:1fr 1.6fr;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff}.review-label{padding:34px;background:#e7ecdb}.review-content{padding:34px}.check-row{padding:18px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;font-size:14px}.check-row:last-child{border:0}.text-link{font-size:14px;font-weight:650;text-decoration:underline;text-underline-offset:5px;text-decoration-color:#a5b488}.text-link:hover{color:#668b26}.news-item{display:grid;grid-template-columns:70px 1fr;gap:22px;padding:26px 0;border-top:1px solid var(--line)}.news-item p{font-size:14px;color:var(--muted);margin-top:9px}.news-item summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;font-weight:700;font-size:18px}.news-item summary::-webkit-details-marker{display:none}.news-item summary:after{content:"＋";color:#718644}.news-item details[open] summary:after{content:"－"}.article-body{padding-top:18px;border-top:1px dashed var(--line);margin-top:18px!important}.safety-box{border-left:3px solid #86a53f;padding-left:22px}.safety-box p{font-size:14px;color:var(--muted);margin-top:10px}
@media(max-width:1024px){.container{width:calc(100% - 48px)}.header-main{gap:24px}.header-chip{display:none}.brand{font-size:17px}.section-head{gap:25px}.section-head .intro{max-width:45%}.icon-tile{padding:16px}}
@media(max-width:768px){section{padding:52px 0}.header-main{flex-wrap:wrap;gap:0;padding-top:16px}.nav{margin-left:0;width:100%;gap:26px}.nav a{padding:15px 0 12px}.section-head{display:block}.section-head .intro{max-width:100%;margin-top:20px}.cta{padding:30px;align-items:flex-start;flex-direction:column}.footer-bottom{flex-direction:column}.topic-row{grid-template-columns:35px 1fr;gap:12px}.topic-row p{grid-column:2}.review-band{grid-template-columns:1fr}.hero-title{letter-spacing:-1px}.status-strip{gap:12px 20px}}
@media(max-width:520px){.container{width:calc(100% - 36px)}.hero{padding-top:24px}.card{padding:23px}.news-item{grid-template-columns:34px 1fr;gap:12px}.news-item summary{font-size:16px}.btn{padding:12px 17px}.brand{font-size:18px}.review-label,.review-content,.bracket{padding:24px}.check-row{flex-direction:column;gap:5px}.status-strip{align-items:flex-start;flex-direction:column}.footer-links{gap:18px}.hero-copy{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}