/* roulang page: index */
:root{--green:#193a35;--green-2:#102c28;--mint:#ddebe4;--orange:#d87555;--paper:#f7f4ee;--soft:#eef2ed;--ink:#202825;--muted:#69736d;--line:#d9e1da;--white:#fffdf9;--radius:20px;--shadow:0 16px 40px rgba(25,58,53,.09);--ease:220ms ease}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--paper);color:var(--ink);font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;height:auto}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 48px));margin:auto}
.site-header{height:78px;border-bottom:1px solid var(--line);background:rgba(247,244,238,.94);position:sticky;top:0;z-index:20}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:30px}
.logo{display:flex;align-items:center;gap:11px;color:var(--green);font-size:21px;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
.logo-mark{width:32px;height:25px;border:3px solid var(--green);border-radius:17px 17px 10px 10px;position:relative}
.logo-mark:after{content:"";position:absolute;width:10px;height:3px;background:var(--orange);right:-7px;bottom:2px;transform:rotate(-22deg);border-radius:4px}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:9px 16px;color:var(--muted);font-size:14px;font-weight:650;border-radius:9px;transition:var(--ease)}
.nav a:hover,.nav a.active{color:var(--green);background:var(--mint)}
.nav a.active{position:relative}
.nav a.active:after{content:"";position:absolute;left:16px;right:16px;bottom:3px;height:2px;background:var(--orange)}
.header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:12px 19px;font-weight:700;font-size:14px;transition:var(--ease)}
.header-action,.btn-primary{background:var(--green);color:var(--white);box-shadow:0 8px 18px rgba(25,58,53,.14)}
.header-action:hover,.btn-primary:hover{background:var(--green-2);transform:translateY(-2px)}
.btn-secondary{background:transparent;border-color:var(--green);color:var(--green)}
.btn-secondary:hover{background:var(--mint);transform:translateY(-2px)}
.btn:focus,.header-action:focus,.nav a:focus,button:focus{outline:3px solid rgba(216,117,85,.38);outline-offset:3px}
.btn:active,.header-action:active{transform:translateY(0)}
.menu-toggle{display:none;border:0;background:none;color:var(--green);font-size:26px}
.hero{padding:78px 0 54px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:72px;align-items:center}
.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:26px;height:2px;background:var(--orange)}
h1{font-size:clamp(38px,5vw,58px);line-height:1.18;letter-spacing:-.055em;color:var(--green);margin:18px 0 20px;font-weight:800}
.hero-copy{font-size:18px;color:var(--muted);max-width:560px}
.hero-actions{display:flex;gap:13px;align-items:center;margin-top:30px}
.text-link{font-weight:700;color:var(--green);padding:10px 4px;border-bottom:1px solid var(--orange)}
.hero-visual{position:relative}
.hero-visual img{height:430px;object-fit:cover;border-radius:26px 26px 26px 7px}
.hero-note{position:absolute;left:-26px;bottom:24px;background:var(--white);border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow);min-width:205px}
.hero-note small,.meta{display:block;color:var(--muted);font-size:12px}
.hero-note strong{display:block;color:var(--green);font-size:18px;margin-top:3px}
.keyword-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:13px 0;background:var(--soft)}
.keyword-inner{display:flex;gap:12px;align-items:center;overflow:auto;white-space:nowrap}
.keyword{border:1px solid var(--line);background:var(--white);border-radius:30px;padding:6px 15px;color:var(--green);font-size:13px;font-weight:650}
.section{padding:92px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-kicker{color:var(--orange);font-weight:800;font-size:13px;letter-spacing:.08em}
h2{color:var(--green);font-size:clamp(28px,3.5vw,38px);line-height:1.3;letter-spacing:-.04em;margin-top:7px}
.section-intro{color:var(--muted);max-width:510px}
.info-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:22px}
.feature-card,.side-card,.path-item,.topic-card,.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:var(--ease)}
.feature-card{overflow:hidden;display:grid;grid-template-columns:.86fr 1.14fr;min-height:310px}
.feature-card img{height:100%;object-fit:cover}
.feature-content{padding:34px}
.feature-content h3,.topic-card h3{color:var(--green);font-size:23px;line-height:1.4;margin:12px 0}
.feature-content p,.topic-card p{color:var(--muted);font-size:15px}
.badge{background:var(--mint);padding:5px 10px;border-radius:20px;letter-spacing:0;color:var(--green)}
.side-list{display:flex;flex-direction:column;gap:12px}
.side-card{padding:22px 24px;display:flex;gap:16px;align-items:flex-start}
.side-card:hover,.feature-card:hover,.topic-card:hover,.path-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b8cec3}
.side-number{color:var(--orange);font-size:20px;font-weight:800}
.side-card h3{font-size:17px;color:var(--green);margin-bottom:2px}
.side-card p{font-size:14px;color:var(--muted)}
.path-section{background:var(--soft)}
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.path-item{position:relative;border-radius:0;padding:26px 22px;background:var(--white)}
.path-item:first-child{border-radius:18px 0 0 18px}.path-item:last-child{border-radius:0 18px 18px 0}
.path-item:not(:last-child):after{content:"→";position:absolute;right:-13px;top:42px;width:25px;height:25px;border-radius:50%;background:var(--orange);color:white;text-align:center;line-height:24px;z-index:2}
.path-no{font-size:13px;color:var(--orange);font-weight:800}.path-item h3{font-size:18px;color:var(--green);margin:10px 0 5px}.path-item p{font-size:14px;color:var(--muted)}
.updates{background:var(--paper)}
.filter-row{display:flex;gap:8px}.filter{border:1px solid var(--line);background:transparent;color:var(--muted);padding:7px 13px;border-radius:20px;font-size:13px}.filter.active,.filter:hover{background:var(--mint);color:var(--green);border-color:var(--mint)}
.update-list{border-top:1px solid var(--line)}
.update-item{display:grid;grid-template-columns:145px 1fr 100px;gap:25px;align-items:center;padding:22px 10px;border-bottom:1px solid var(--line);transition:var(--ease)}
.update-item:hover{background:var(--white);padding-left:18px;padding-right:18px}
.update-date,.update-cat{font-size:13px;color:var(--muted)}.update-cat{color:var(--orange);font-weight:750}
.update-item h3{font-size:18px;color:var(--green);margin-bottom:3px}.update-item p{font-size:14px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.update-arrow{text-align:right;color:var(--orange);font-size:22px}
.empty-state{padding:26px 10px;color:var(--muted);border-bottom:1px solid var(--line)}
.topic-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.topic-main{background:var(--green);color:var(--white);border-radius:22px;padding:38px;position:relative;overflow:hidden}
.topic-main:before{content:"";position:absolute;right:-70px;bottom:-80px;width:240px;height:240px;border:38px solid rgba(221,235,228,.15);border-radius:50%}
.topic-main h3{font-size:27px;line-height:1.35;margin:14px 0}.topic-main p{color:#d7e6df;max-width:500px}.topic-main .btn{margin-top:24px;background:var(--white);color:var(--green)}
.topic-list{background:var(--white);border:1px solid var(--line);border-radius:22px;padding:10px 26px}
.topic-row{display:flex;gap:16px;padding:19px 0;border-bottom:1px solid var(--line)}.topic-row:last-child{border:0}.topic-row b{color:var(--orange);font-size:14px}.topic-row strong{display:block;color:var(--green);font-size:16px}.topic-row span{display:block;color:var(--muted);font-size:13px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
.faq-item{overflow:hidden}.faq-question{width:100%;border:0;background:none;text-align:left;padding:20px 22px;color:var(--green);font-weight:750;display:flex;justify-content:space-between;align-items:center}.faq-question span{font-size:22px;color:var(--orange);transition:var(--ease)}.faq-answer{display:none;padding:0 22px 20px;color:var(--muted);font-size:14px}.faq-item.open{background:var(--mint);border-color:#c8ddd2}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span{transform:rotate(45deg)}
.cta{padding:30px 0 94px}.cta-inner{background:var(--green);border-radius:22px;padding:38px 44px;display:flex;justify-content:space-between;align-items:center;gap:25px;color:var(--white)}.cta h2{color:var(--white);font-size:29px}.cta p{color:#d7e6df;margin-top:5px}.cta-actions{display:flex;gap:12px;flex-shrink:0}.cta .btn-primary{background:var(--white);color:var(--green)}.cta .btn-secondary{border-color:#b9d0c5;color:var(--white)}
.site-footer{background:var(--green-2);color:#d9e5df;padding:56px 0 22px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}.footer-logo{color:var(--white);margin-bottom:13px}.footer-desc{font-size:14px;color:#aabeb5;max-width:270px}.footer-col h3{font-size:14px;color:var(--white);margin-bottom:14px}.footer-col a{display:block;color:#aabeb5;font-size:14px;margin:8px 0;transition:var(--ease)}.footer-col a:hover{color:var(--white);transform:translateX(3px)}.copyright{border-top:1px solid rgba(217,229,223,.16);margin-top:40px;padding-top:18px;color:#91aaa0;font-size:12px;display:flex;justify-content:space-between;gap:15px}
@media(max-width:992px){.hero-grid{gap:35px}.info-layout,.topic-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.2fr 1fr 1fr}.path-grid{grid-template-columns:repeat(2,1fr);gap:12px}.path-item,.path-item:first-child,.path-item:last-child{border-radius:16px}.path-item:not(:last-child):after{display:none}}
@media(max-width:768px){.container{width:min(100% - 40px,600px)}.site-header{height:68px}.header-action{display:none}.menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:20px;right:20px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:8px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.show{display:flex}.nav a{padding:12px 15px}.hero{padding:55px 0 38px}.hero-grid{grid-template-columns:1fr}.hero-visual img{height:310px}.hero-note{left:15px}.section{padding:65px 0}.section-head{display:block}.section-intro{margin-top:12px}.filter-row{margin-top:18px;overflow:auto}.feature-card{grid-template-columns:1fr}.feature-card img{height:220px}.path-grid{grid-template-columns:1fr}.update-item{grid-template-columns:90px 1fr 25px;gap:12px}.update-item p{display:none}.faq-grid{grid-template-columns:1fr}.cta{padding-bottom:65px}.cta-inner{display:block;padding:30px 25px}.cta-actions{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
@media(max-width:520px){h1{font-size:36px}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn,.hero-actions .text-link{text-align:center}.feature-content,.topic-main{padding:26px}.update-item{grid-template-columns:1fr 25px}.update-date{display:none}.footer-grid{gap:25px}.logo{font-size:18px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{--green:#193a35;--green-2:#102c28;--mint:#ddebe4;--orange:#d87555;--paper:#f7f4ee;--soft:#eef2ed;--ink:#202825;--muted:#69736d;--line:#d9e1da;--white:#fffdf9;--radius:20px;--shadow:0 16px 40px rgba(25,58,53,.09);--ease:220ms ease}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;height:auto}
    button{font:inherit;cursor:pointer}
    .container{width:min(1180px,calc(100% - 48px));margin:auto}
    .site-header{height:78px;border-bottom:1px solid var(--line);background:rgba(247,244,238,.96);position:sticky;top:0;z-index:20}
    .header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--green);font-size:21px;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
    .logo-mark{width:32px;height:25px;border:3px solid var(--green);border-radius:17px 17px 10px 10px;position:relative}
    .logo-mark:after{content:"";position:absolute;width:10px;height:3px;background:var(--orange);right:-7px;bottom:2px;transform:rotate(-22deg);border-radius:4px}
    .nav{display:flex;align-items:center;gap:5px}
    .nav a{padding:9px 16px;color:var(--muted);font-size:14px;font-weight:650;border-radius:9px;transition:var(--ease)}
    .nav a:hover,.nav a.active{color:var(--green);background:var(--mint)}
    .nav a.active{position:relative}
    .nav a.active:after{content:"";position:absolute;left:16px;right:16px;bottom:3px;height:2px;background:var(--orange)}
    .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:12px 19px;font-weight:700;font-size:14px;transition:var(--ease)}
    .header-action,.btn-primary{background:var(--green);color:var(--white);box-shadow:0 8px 18px rgba(25,58,53,.14)}
    .header-action:hover,.btn-primary:hover{background:var(--green-2);transform:translateY(-2px)}
    .btn-secondary{background:transparent;border-color:var(--green);color:var(--green)}
    .btn-secondary:hover{background:var(--mint);transform:translateY(-2px)}
    .btn:focus,.header-action:focus,.nav a:focus,.menu-toggle:focus,.faq-question:focus{outline:3px solid rgba(216,117,85,.38);outline-offset:3px}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--green);font-size:27px}
    .inner-hero{padding:62px 0 70px}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumb a:hover{color:var(--green)}
    .breadcrumb span{color:var(--orange)}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:26px;height:2px;background:var(--orange)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:54px;line-height:1.18;letter-spacing:-.045em;color:var(--green);margin:14px 0 20px;font-weight:800}
    h2{font-size:34px;line-height:1.3;color:var(--green);letter-spacing:-.025em;margin-bottom:14px}
    h3{color:var(--green);line-height:1.4}
    .hero-copy{font-size:18px;color:var(--muted);max-width:600px}
    .hero-actions{display:flex;gap:13px;margin-top:28px}
    .hero-image{position:relative}
    .hero-image img{height:300px;object-fit:cover;border-radius:26px 8px 26px 26px}
    .image-caption{font-size:12px;color:var(--muted);margin-top:10px}
    .section{padding:84px 0}
    .section-soft{background:var(--soft)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-kicker{color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em}
    .section-intro{max-width:510px;color:var(--muted);margin-bottom:0}
    .index-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}
    .index-list,.fact-box,.guide-panel,.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
    .index-list{padding:10px 28px}
    .index-item{display:grid;grid-template-columns:52px 1fr 25px;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:var(--ease)}
    .index-item:last-child{border-bottom:0}
    .index-item:hover{padding-left:8px;color:var(--green)}
    .index-number{font-size:22px;font-weight:800;color:var(--orange)}
    .index-item h3{font-size:18px;margin:0 0 3px}
    .index-item p{font-size:14px;color:var(--muted);margin:0}
    .index-arrow{font-size:21px;color:var(--orange)}
    .fact-box{padding:30px}
    .fact-box h3{font-size:21px;margin-bottom:20px}
    .fact-row{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
    .fact-row:last-child{border-bottom:0}
    .fact-row span{color:var(--muted)}
    .fact-row strong{color:var(--green);font-weight:700;text-align:right}
    .guide-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:24px}
    .guide-panel{padding:34px}
    .guide-panel h3{font-size:24px;margin:12px 0}
    .guide-panel p{color:var(--muted);max-width:650px}
    .guide-points{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:24px 0 28px;padding:0;list-style:none}
    .guide-points li{position:relative;padding-left:21px;color:var(--ink);font-size:14px}
    .guide-points li:before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--orange)}
    .mini-card{padding:25px;background:var(--green);border-radius:20px;color:var(--white);min-height:100%}
    .mini-card .badge{background:rgba(221,235,228,.16);color:var(--mint)}
    .mini-card h3{color:var(--white);font-size:23px;margin:15px 0 10px}
    .mini-card p{color:#d7e6df;font-size:14px}
    .mini-card a{display:inline-block;margin-top:18px;color:var(--white);border-bottom:1px solid var(--orange);font-weight:700}
    .scenario-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
    .scenario-wide{position:relative;overflow:hidden;min-height:270px;border-radius:22px;background:var(--green);color:var(--white);padding:34px}
    .scenario-wide img{position:absolute;inset:0;height:100%;object-fit:cover;opacity:.36}
    .scenario-wide div{position:relative;max-width:470px}
    .scenario-wide h3{color:var(--white);font-size:27px;margin:14px 0 9px}
    .scenario-wide p{color:#e0ece6;font-size:15px}
    .scenario-side{display:grid;gap:20px}
    .scenario-card{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:25px;transition:var(--ease)}
    .scenario-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b8cec3}
    .scenario-card h3{font-size:19px;margin:10px 0 5px}
    .scenario-card p{color:var(--muted);font-size:14px;margin:0}
    .badge{background:var(--mint);padding:5px 10px;border-radius:20px;letter-spacing:0;color:var(--green)}
    .faq-list{max-width:860px;margin:0 auto}
    .faq-item{margin-bottom:12px;overflow:hidden}
    .faq-question{width:100%;border:0;background:transparent;color:var(--green);display:flex;justify-content:space-between;text-align:left;gap:20px;padding:21px 24px;font-weight:750;font-size:16px}
    .faq-question span:last-child{color:var(--orange);font-size:23px;line-height:1;transition:var(--ease)}
    .faq-answer{display:none;padding:0 24px 22px;color:var(--muted);font-size:14px;max-width:780px}
    .faq-item.open{background:var(--mint)}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:55px 0;background:var(--green);color:var(--white)}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{color:var(--white);font-size:31px;margin-bottom:8px}
    .cta p{color:#d7e6df;margin:0}
    .cta-actions{display:flex;gap:12px;flex-shrink:0}
    .cta .btn-primary{background:var(--white);color:var(--green)}
    .cta .btn-secondary{border-color:var(--mint);color:var(--white)}
    .site-footer{background:var(--green-2);color:var(--mint);padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-logo{color:var(--white);margin-bottom:15px}
    .footer-desc{color:#b9cec4;font-size:14px;max-width:280px}
    .footer-col{display:flex;flex-direction:column;gap:8px}
    .footer-col h3{color:var(--white);font-size:15px;margin:0 0 7px}
    .footer-col a{color:#b9cec4;font-size:14px;transition:var(--ease)}
    .footer-col a:hover{color:var(--white);padding-left:4px}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(221,235,228,.18);margin-top:42px;padding-top:18px;color:#9eb8ad;font-size:12px}
    @media(max-width:992px){
      .header-action{display:none}.hero-grid,.index-layout,.guide-layout{grid-template-columns:1fr;gap:30px}
      .hero-image img{height:340px}.scenario-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 40px,620px)}.site-header{height:70px}.menu-toggle{display:block}
      .nav{display:none;position:absolute;left:20px;right:20px;top:66px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:9px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.show{display:flex}.nav a{padding:12px 14px}.nav a.active:after{left:14px;right:auto;width:28px}
      .inner-hero{padding:42px 0 55px}h1{font-size:39px}.hero-copy{font-size:16px}.hero-actions{flex-wrap:wrap}
      .section{padding:62px 0}.section-head{display:block}.section-intro{margin-top:10px}
      .index-list{padding:8px 20px}.guide-points{grid-template-columns:1fr}.guide-panel,.fact-box{padding:25px}
      .cta-inner{display:block}.cta-actions{margin-top:24px;flex-wrap:wrap}.cta-actions .btn{flex:1}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.copyright{display:block}.copyright span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}h1{font-size:34px}.hero-image img{height:245px}
      .index-item{grid-template-columns:38px 1fr 20px;gap:10px}.index-number{font-size:19px}
      .scenario-wide{padding:25px;min-height:250px}.cta-actions{display:grid;grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}.copyright{margin-top:30px}
    }
    @media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: article */
:root{--green:#193a35;--green-2:#102c28;--mint:#ddebe4;--orange:#d87555;--paper:#f7f4ee;--soft:#eef2ed;--ink:#202825;--muted:#69736d;--line:#d9e1da;--white:#fffdf9;--radius:20px;--radius-sm:10px;--shadow:0 16px 40px rgba(25,58,53,.09);--ease:220ms ease;--safe:clamp(16px,2vw,24px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--paper);color:var(--ink);font-size:16px;line-height:1.8;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;height:auto}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid rgba(216,117,85,.38);outline-offset:3px}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:40;background:rgba(247,244,238,.94);backdrop-filter:saturate(1.1) blur(10px);border-bottom:1px solid var(--line)}
.header-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{display:flex;align-items:center;gap:11px;color:var(--green);font-size:21px;font-weight:800;letter-spacing:0;white-space:nowrap;flex:0 0 auto}
.logo-mark{width:32px;height:25px;border:3px solid var(--green);border-radius:17px 17px 10px 10px;position:relative;flex:0 0 auto}
.logo-mark:after{content:"";position:absolute;width:10px;height:3px;background:var(--orange);right:-7px;bottom:2px;transform:rotate(-22deg);border-radius:4px}
.nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav a{padding:9px 15px;color:var(--muted);font-size:14px;font-weight:650;border-radius:9px;transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease)}
.nav a:hover,.nav a.active{color:var(--green);background:var(--mint)}
.nav a.active{position:relative}
.nav a.active:after{content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;background:var(--orange);border-radius:2px}
.header-action,.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:12px 18px;font-weight:700;font-size:14px;transition:transform var(--ease),background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease)}
.header-action,.btn-primary-x{background:var(--green);color:var(--white);box-shadow:0 8px 18px rgba(25,58,53,.14)}
.header-action:hover,.btn-primary-x:hover{background:var(--green-2);transform:translateY(-2px)}
.btn-secondary-x{background:transparent;border-color:var(--green);color:var(--green)}
.btn-secondary-x:hover{background:var(--mint);transform:translateY(-2px)}
.menu-toggle{display:none;border:1px solid var(--line);background:var(--white);color:var(--green);width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center;font-size:22px;line-height:1;transition:var(--ease)}
.menu-toggle:hover{transform:translateY(-1px);border-color:#bed2c7;box-shadow:var(--shadow)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:var(--white)}
.mobile-panel .container{padding:14px 0 18px}
.mobile-panel .nav{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.mobile-panel .nav a{justify-content:center;padding:14px 16px;background:var(--soft)}
.mobile-panel .header-action{width:100%;margin-top:12px}
body.menu-open .mobile-panel{display:block}
.page-shell{padding:24px 0 0}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted)}
.breadcrumbs a{color:var(--green);font-weight:650}
.sep{color:#96a29b}
.hero{padding:26px 0 18px}
.hero-panel{background:linear-gradient(180deg,rgba(221,235,228,.66),rgba(247,244,238,.92));border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:28px;align-items:center}
.page-kicker{display:inline-flex;align-items:center;gap:10px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:none}
.page-kicker:before{content:"";width:26px;height:2px;background:var(--orange);border-radius:2px}
.hero h1{margin:14px 0 14px;font-size:clamp(32px,4vw,56px);line-height:1.16;letter-spacing:0;color:var(--green)}
.hero-lead{max-width:640px;font-size:17px;line-height:1.95;color:var(--muted);margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-actions .btn-x{min-height:46px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.badge-x{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:var(--white);border:1px solid var(--line);color:var(--green);font-size:13px;font-weight:700}
.badge-x.mint{background:var(--mint)}
.badge-x.orange{background:rgba(216,117,85,.12);border-color:rgba(216,117,85,.22);color:var(--orange)}
.hero-visual{position:relative}
.hero-media{position:relative;overflow:hidden;border-radius:24px 24px 24px 10px;border:1px solid var(--line);background:var(--soft);box-shadow:var(--shadow)}
.hero-media img{height:420px;object-fit:cover}
.figure-caption{margin-top:10px;font-size:13px;color:var(--muted)}
.info-grid{padding:24px 0 8px}
.info-strip{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:stretch}
.info-main,.info-side,.content-card,.sidebar-box,.related-card,.cta-band,.faq-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 26px rgba(25,58,53,.05)}
.info-main{padding:28px}
.info-main h2,.content-card h2,.related-head h2,.faq-head h2,.cta-band h2{margin:0 0 12px;font-size:clamp(24px,2.6vw,34px);line-height:1.28;color:var(--green)}
.info-main p{margin:0;color:var(--muted);font-size:15px;line-height:1.95}
.info-side{padding:24px;display:flex;flex-direction:column;gap:14px}
.info-side .row-item{display:flex;justify-content:space-between;gap:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.info-side .row-item:last-child{padding-bottom:0;border-bottom:0}
.info-side .label{color:var(--muted);font-size:13px}
.info-side .value{color:var(--green);font-weight:750;text-align:right}
.link-line{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.index-band{padding:18px 0 8px}
.index-rail{display:flex;gap:10px;flex-wrap:nowrap;overflow:auto;padding-bottom:8px;scrollbar-width:none}
.index-rail::-webkit-scrollbar{display:none}
.index-pill{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;padding:10px 14px;border-radius:999px;border:1px solid var(--line);background:var(--white);color:var(--green);font-size:14px;font-weight:650;transition:var(--ease)}
.index-pill:hover{transform:translateY(-2px);border-color:#bfd0c6;box-shadow:0 10px 22px rgba(25,58,53,.06)}
.index-pill.hot{background:var(--mint)}
.reading-section{padding:26px 0 16px}
.reading-shell{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;align-items:start}
.content-card{padding:30px;min-width:0}
.content-card .article-top{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:18px}
.content-card .article-top .badge-x{background:var(--soft)}
.article-content{max-width:780px;font-size:17px;line-height:1.95;color:var(--ink)}
.article-content > *:first-child{margin-top:0}
.article-content h2{margin:32px 0 14px;padding-left:14px;border-left:4px solid var(--orange);font-size:26px;line-height:1.32;color:var(--green)}
.article-content h3{margin:24px 0 12px;padding-bottom:8px;border-bottom:1px solid var(--line);font-size:22px;line-height:1.36;color:var(--green)}
.article-content p{margin:0 0 16px}
.article-content ul,.article-content ol{padding-left:1.2em;margin:0 0 18px}
.article-content li{margin:0 0 8px}
.article-content blockquote{margin:22px 0;padding:18px 20px;border-left:4px solid var(--orange);background:var(--soft);border-radius:14px;color:var(--green)}
.article-content strong{color:var(--green)}
.article-content img{margin:18px 0;border-radius:18px;border:1px solid var(--line);box-shadow:0 10px 24px rgba(25,58,53,.04)}
.article-content figure{margin:18px 0}
.article-content figcaption{margin-top:8px;font-size:13px;color:var(--muted)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:24px 0}
.article-content table{width:100%;border-collapse:collapse;margin:20px 0;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-content th{background:var(--soft);color:var(--green)}
.article-content code{padding:2px 6px;border-radius:6px;background:#edf3ef;color:#24544d}
.article-content pre{padding:18px;border-radius:16px;background:#1f2623;color:#eff6f2;overflow:auto}
.article-content a{color:var(--green);text-decoration:underline;text-decoration-color:rgba(216,117,85,.55);text-underline-offset:3px}
.article-content a:hover{color:var(--orange)}
.note-box{padding:16px 18px;border-radius:16px;background:rgba(221,235,228,.68);border:1px solid #cddcd3;margin:20px 0;color:var(--green)}
.empty-box{padding:28px;border-radius:18px;background:var(--soft);border:1px dashed #c3d0c7;color:var(--muted)}
.empty-box h2{margin:0 0 10px;color:var(--green)}
.sidebar{display:flex;flex-direction:column;gap:18px;position:sticky;top:102px}
.sidebar-box{padding:22px}
.sidebar-box h3{margin:0 0 14px;font-size:20px;line-height:1.35;color:var(--green)}
.toc-list{display:flex;flex-direction:column;gap:8px}
.toc-item{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border-radius:12px;color:var(--muted);border:1px solid transparent;transition:var(--ease)}
.toc-item:hover{background:var(--soft);color:var(--green)}
.toc-item.active{background:var(--mint);color:var(--green);border-color:#c4d6cd}
.toc-dot{flex:0 0 auto;width:8px;height:8px;margin-top:8px;border-radius:50%;background:var(--orange)}
.toc-item small{display:block;color:inherit;opacity:.82}
.side-meta{display:grid;grid-template-columns:1fr;gap:12px}
.meta-row{padding:13px 14px;border-radius:14px;background:var(--soft);border:1px solid var(--line)}
.meta-row span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.meta-row strong{display:block;color:var(--green);font-size:15px}
.side-links{display:flex;flex-direction:column;gap:10px}
.side-link{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:var(--white);transition:var(--ease)}
.side-link:hover{transform:translateY(-2px);border-color:#bdd0c5;box-shadow:var(--shadow)}
.side-link span{color:var(--green);font-weight:700}
.side-link em{font-style:normal;color:var(--muted);font-size:13px}
.related-section{padding:22px 0 12px}
.related-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
.related-head p,.faq-head p,.cta-band p{margin:0;color:var(--muted);max-width:620px;font-size:15px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{overflow:hidden;transition:var(--ease)}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#bfcec6}
.related-card img{height:150px;object-fit:cover}
.related-body{padding:18px}
.related-body .tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:var(--mint);color:var(--green);font-size:12px;font-weight:700;margin-bottom:10px}
.related-body h3{margin:0 0 10px;color:var(--green);font-size:18px;line-height:1.4}
.related-body p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
.related-foot{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:14px;font-size:13px;color:var(--muted)}
.related-foot a{color:var(--orange);font-weight:700}
.faq-section{padding:16px 0 28px}
.faq-box{padding:28px}
.faq-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:18px}
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
details.faq-item{background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:var(--ease)}
details.faq-item[open]{border-color:#bccfc6;box-shadow:var(--shadow)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 18px 18px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--green);font-weight:750}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--soft);color:var(--orange);font-size:18px;font-weight:700;transition:var(--ease)}
details.faq-item[open] summary:after{content:"−";background:var(--mint)}
.faq-item .answer{padding:0 18px 18px 20px;color:var(--muted);font-size:15px;line-height:1.9}
.cta-section{padding:12px 0 58px}
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:28px 30px;background:var(--green);color:var(--white);overflow:hidden;position:relative}
.cta-band:before{content:"";position:absolute;right:-60px;bottom:-70px;width:240px;height:240px;border-radius:50%;border:34px solid rgba(221,235,228,.12)}
.cta-band h2{color:var(--white);margin-bottom:10px}
.cta-band p{color:#d8e5df;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
.cta-band .btn-secondary-x{border-color:rgba(255,255,255,.7);color:var(--white)}
.cta-band .btn-secondary-x:hover{background:rgba(255,255,255,.12)}
.site-footer{background:var(--green);color:#e0ece7;padding:52px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr .8fr;gap:24px}
.footer-logo{color:var(--white)}
.footer-desc{margin:14px 0 0;max-width:320px;color:#c9ddd5;font-size:14px;line-height:1.9}
.footer-col h3{margin:0 0 14px;font-size:15px;color:var(--white)}
.footer-col a{display:block;color:#d4e3de;font-size:14px;padding:6px 0;transition:var(--ease)}
.footer-col a:hover{color:#fff}
.copyright{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:28px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#bfd3cc;font-size:13px}
.copy-btn{white-space:nowrap}
@media (max-width: 1199.98px){
.container{width:min(1120px,calc(100% - 40px))}
.hero-grid,.info-strip,.reading-shell{grid-template-columns:1fr}
.sidebar{position:static}
.hero-media img{height:360px}
.related-grid{grid-template-columns:repeat(2,1fr)}
.faq-list{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1.2fr 1fr 1fr 1fr}
}
@media (max-width: 991.98px){
.nav{display:none}
.menu-toggle{display:inline-flex}
.header-action{display:none}
.hero-panel{padding:22px}
.hero{padding-top:20px}
.content-card,.sidebar-box,.faq-box{padding:22px}
.cta-band{flex-direction:column;align-items:flex-start}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 767.98px){
.container{width:min(100% - 32px,1200px)}
.header-inner{min-height:70px}
.logo{font-size:18px}
.hero h1{font-size:clamp(30px,8vw,38px)}
.hero-lead{font-size:16px}
.hero-media img{height:260px}
.index-band,.related-section,.faq-section,.cta-section{padding-top:12px}
.related-grid{grid-template-columns:1fr}
.article-content{font-size:16px}
.article-content h2{font-size:23px}
.article-content h3{font-size:19px}
.cta-band{padding:22px}
}
@media (max-width: 575.98px){
.container{width:min(100% - 24px,1200px)}
.hero-panel{padding:18px;border-radius:20px}
.hero-actions,.link-line,.cta-actions{width:100%}
.hero-actions .btn-x,.cta-actions .btn-x,.link-line .btn-x{width:100%}
.badge-x{padding:6px 10px}
.info-main,.info-side,.content-card,.sidebar-box,.faq-box,.cta-band{padding:18px}
.faq-item summary{padding:16px}
.mobile-panel .nav{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.copyright{flex-direction:column}
}