/* roulang page: index */
:root{
  --pine:#174b42;--pine-dark:#103b34;--lime:#b8d84b;--ink:#1f2b28;--muted:#66736e;
  --paper:#f6f4ec;--white:#fff;--mist:#eaf0e8;--sand:#eee9dd;--warning:#b86132;
  --line:#dce3dc;--radius:18px;--radius-lg:26px;--shadow:0 12px 34px rgba(23,75,66,.08);
  --shadow-hover:0 18px 42px rgba(23,75,66,.15);--max:1240px;
}
*{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}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}.container{width:min(calc(100% - 48px),var(--max));margin:auto}.section{padding:94px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine);font-size:13px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:28px;height:2px;background:var(--lime)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(38px,4vw,52px);line-height:1.22;letter-spacing:-.045em}h2{font-size:clamp(28px,3vw,38px);line-height:1.3;letter-spacing:-.035em;margin-bottom:18px}h3{font-size:20px;line-height:1.45;margin-bottom:8px}.section-lead{max-width:680px;color:var(--muted);font-size:17px;margin-bottom:34px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 20px;border:1px solid transparent;border-radius:12px;font-weight:800;transition:transform .2s,background .2s,border .2s,box-shadow .2s}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(184,216,75,.75);outline-offset:3px}.btn-primary{background:var(--pine);color:#fff;box-shadow:0 7px 16px rgba(23,75,66,.17)}.btn-primary:hover{background:#286257}.btn-light{background:#fff;border-color:var(--line);color:var(--pine)}.btn-light:hover{border-color:var(--pine);box-shadow:var(--shadow)}.btn-lime{background:var(--lime);color:var(--pine-dark)}.btn-lime:hover{background:#c8e962}.text-link{color:var(--pine);font-weight:800;display:inline-flex;align-items:center;gap:8px}.text-link:hover{text-decoration:underline}.text-link:hover span{transform:translateX(4px)}.text-link span{transition:transform .2s}.badge{display:inline-flex;align-items:center;gap:6px;background:var(--mist);color:var(--pine);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800}.badge.lime{background:#eaf4c7}.site-header{position:sticky;top:0;z-index:100;background:rgba(246,244,236,.97);border-bottom:1px solid rgba(220,227,220,.8)}.head-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;max-width:310px;color:var(--pine);font-weight:900;font-size:15px;line-height:1.35}.brand-mark{position:relative;width:37px;height:37px;flex:0 0 37px;border-radius:11px;background:var(--pine)}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:3px solid var(--lime)}.brand-mark:before{width:16px;height:16px;left:8px;top:7px}.brand-mark:after{width:5px;height:5px;right:6px;bottom:6px;border-width:2px}.main-nav{display:flex;align-items:center;gap:3px}.main-nav a{padding:9px 11px;border-radius:9px;color:#45534e;font-size:14px;font-weight:700;white-space:nowrap}.main-nav a:hover,.main-nav a.active{color:var(--pine);background:var(--mist)}.header-action{font-size:14px;min-height:42px}.menu-btn{display:none;border:0;background:none;color:var(--pine);font-size:26px}.mobile-nav{display:none}.hero{padding:74px 0 44px;overflow:hidden;background:linear-gradient(180deg,#f6f4ec 0%,#eef2eb 100%)}.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:54px;align-items:center}.hero-copy p{font-size:18px;color:var(--muted);max-width:650px;margin-bottom:28px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.hero-notes{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;color:var(--muted);font-size:13px;font-weight:700}.hero-notes i{width:8px;height:8px;background:var(--lime);border-radius:50%;display:inline-block;margin-right:6px}.visual-stage{position:relative;min-height:400px;background:var(--pine);border-radius:var(--radius-lg);padding:28px;overflow:hidden;box-shadow:var(--shadow)}.visual-stage:before{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:-120px;top:-170px}.visual-stage:after{content:"";position:absolute;width:250px;height:250px;border:1px solid rgba(184,216,75,.35);border-radius:50%;left:-155px;bottom:-130px}.verify-panel{position:relative;z-index:1;background:#fff;border-radius:17px;padding:20px;max-width:332px;box-shadow:0 14px 32px rgba(0,0,0,.16)}.verify-panel h3{font-size:16px}.address-line{padding:12px;background:var(--mist);border-radius:10px;color:var(--pine);font-size:13px;font-weight:800;word-break:break-all}.verified{display:flex;align-items:center;gap:9px;margin-top:14px;color:var(--pine);font-size:14px;font-weight:800}.check{width:22px;height:22px;background:var(--lime);border-radius:50%;display:grid;place-items:center;font-size:13px}.phone-shape{position:absolute;z-index:2;right:34px;bottom:-32px;width:194px;height:356px;border:8px solid #293934;border-bottom-width:0;border-radius:28px 28px 0 0;background:#fbfbf8;padding:24px 12px 10px;box-shadow:0 18px 40px rgba(0,0,0,.28)}.phone-shape:before{content:"";position:absolute;top:9px;left:50%;transform:translateX(-50%);width:55px;height:5px;border-radius:8px;background:#293934}.app-title{font-size:11px;color:var(--muted);margin-bottom:18px}.app-block{height:80px;background:var(--pine);border-radius:12px;padding:13px;color:#fff}.app-block small{display:block;color:#d4e8e0;font-size:9px}.app-block strong{display:block;margin-top:4px;font-size:13px}.mini-chart{display:flex;gap:4px;align-items:end;height:32px;margin-top:8px}.mini-chart b{display:block;background:var(--lime);width:14%;border-radius:3px 3px 0 0}.app-list{margin-top:13px}.app-list div{height:10px;background:#e7ece7;border-radius:8px;margin:9px 0}.app-list div:nth-child(2){width:74%}.app-list div:nth-child(3){width:86%}.status-strip{padding:18px 0;background:#fff;border-bottom:1px solid var(--line)}.status-grid{display:grid;grid-template-columns:repeat(4,1fr)}.status-item{display:flex;align-items:center;gap:12px;padding:7px 24px;border-right:1px solid var(--line)}.status-item:last-child{border:0}.status-icon{width:38px;height:38px;border-radius:11px;background:var(--mist);display:grid;place-items:center;color:var(--pine);font-size:18px}.status-item b{display:block;font-size:14px}.status-item small{display:block;color:var(--muted);font-size:12px}.verify-section{background:var(--mist)}.verify-box{padding:38px;border:1px solid #d7e4d5;background:#f8fbf7;border-radius:var(--radius-lg);display:grid;grid-template-columns:.75fr 1.25fr;gap:36px;align-items:center}.verify-form{display:grid;grid-template-columns:1fr auto;gap:10px}.verify-form input{min-width:0;padding:13px 15px;border:1px solid #bdcec1;border-radius:12px;background:#fff;color:var(--ink)}.verify-form input::placeholder{color:#87928d}.result-row{display:flex;align-items:flex-start;gap:10px;margin-top:16px;color:var(--muted);font-size:14px}.result-row strong{color:var(--warning)}.download-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:64px;align-items:center}.download-display{min-height:410px;background:var(--sand);border-radius:var(--radius-lg);position:relative;overflow:hidden;display:flex;align-items:end;justify-content:center}.download-display:before{content:"";width:270px;height:270px;border:1px solid rgba(23,75,66,.18);border-radius:50%;position:absolute;top:50px}.download-phone{width:200px;height:342px;border-radius:26px 26px 0 0;background:#fff;border:7px solid var(--pine);border-bottom:0;padding:27px 15px 0;position:relative;z-index:1}.download-phone:before{content:"";position:absolute;top:9px;left:72px;width:48px;height:5px;border-radius:4px;background:var(--pine)}.app-logo{width:48px;height:48px;border-radius:15px;background:var(--pine);color:var(--lime);display:grid;place-items:center;font-weight:900;font-size:20px}.screen-name{font-weight:900;margin-top:13px;font-size:16px}.screen-card{margin-top:15px;padding:12px;background:var(--mist);border-radius:11px;font-size:11px;color:var(--pine)}.screen-card b{display:block;font-size:15px;margin:2px 0}.version-meta{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0}.version-meta span{padding:6px 10px;border-radius:8px;background:var(--sand);font-size:13px;color:#52605a}.get-grid{display:grid;grid-template-columns:1fr 116px;gap:17px;align-items:center}.platform-buttons{display:grid;gap:10px}.platform-buttons .btn{justify-content:flex-start}.qr-slot{aspect-ratio:1;border:1px dashed #9dac9f;border-radius:13px;background:#fff;display:grid;place-items:center;text-align:center;padding:10px;color:var(--muted);font-size:12px}.steps{background:#fff}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}.step{position:relative;padding:26px 20px;background:var(--paper);border-radius:16px;border:1px solid transparent}.step:hover{border-color:#bbd3c1;box-shadow:var(--shadow)}.step-num{display:grid;place-items:center;width:35px;height:35px;border-radius:50%;background:var(--pine);color:var(--lime);font-weight:900;margin-bottom:18px}.step p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}.channel-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;grid-template-rows:180px 180px;gap:16px}.channel-card{border-radius:18px;padding:25px;position:relative;overflow:hidden;transition:.22s;background:#fff;border:1px solid var(--line)}.channel-card:hover{transform:translateY(-3px);border-color:#94b6a1;box-shadow:var(--shadow-hover)}.channel-card h3{margin-top:12px}.channel-card p{font-size:14px;color:var(--muted);margin:0}.channel-card.large{grid-row:span 2;background:var(--pine);color:#fff}.channel-card.large p{color:#d8e5df}.channel-card.sand{background:var(--sand)}.channel-card.mist{background:var(--mist)}.channel-card .arrow{position:absolute;right:22px;bottom:18px;color:var(--pine);font-size:22px}.channel-card.large .arrow{color:var(--lime)}.news-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:30px}.news-board{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}.featured-news{display:grid;grid-template-columns:155px 1fr auto;gap:24px;align-items:center;padding:28px;background:var(--mist)}.date-block{color:var(--pine);font-weight:900;font-size:15px}.date-block b{display:block;font-size:38px;line-height:1}.news-summary{margin:7px 0 0;color:var(--muted);font-size:14px;line-height:1.7}.news-list{padding:0 28px}.news-item{display:grid;grid-template-columns:120px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border:0}.news-item time{font-size:13px;color:var(--muted)}.news-item h3{font-size:16px;margin:0}.news-item h3 a:hover{color:var(--pine)}.empty-state{text-align:center;padding:54px 22px;color:var(--muted)}.empty-icon{font-size:30px;color:var(--pine);margin-bottom:8px}.updates-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.announcement-panel,.timeline-panel{background:#fff;padding:30px;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.notice-row{display:grid;grid-template-columns:68px 1fr;gap:16px;padding:17px 0;border-top:1px solid var(--line)}.notice-date{color:var(--pine);font-weight:900;font-size:13px}.notice-row p,.timeline-item p{margin:4px 0 0;color:var(--muted);font-size:13px;line-height:1.65}.timeline-item{position:relative;padding:0 0 22px 24px;border-left:2px solid #d9e5d8}.timeline-item:last-child{padding-bottom:0}.timeline-item:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--lime);left:-6px;top:5px}.timeline-item b{font-size:15px}.compat-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}.compat-item{padding:25px;border-right:1px solid var(--line)}.compat-item:last-child{border:0}.compat-icon{font-size:28px;color:var(--pine)}.compat-item h3{margin:12px 0 4px}.compat-item p{font-size:13px;color:var(--muted);margin:0}.ok{color:var(--pine);font-size:13px;font-weight:800}.recognition{background:var(--sand)}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.compare-card{border-radius:var(--radius);padding:32px;background:#fff;border:1px solid var(--line)}.compare-card.alert{background:#fffaf5;border-color:#e5c9ba}.compare-card ul{padding:0;margin:20px 0 0;list-style:none}.compare-card li{padding:13px 0;border-top:1px solid var(--line);font-size:15px}.compare-card li:before{content:"✓";display:inline-grid;place-items:center;width:21px;height:21px;border-radius:50%;margin-right:10px;background:var(--mist);color:var(--pine);font-size:12px;font-weight:900}.compare-card.alert li:before{content:"!";background:#f5dfd3;color:var(--warning)}.guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.guide-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.22s}.guide-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#9ab7a3}.guide-index{font-size:13px;font-weight:900;color:var(--pine)}.guide-card p{font-size:14px;color:var(--muted);min-height:68px}.readtime{display:block;margin-bottom:15px;font-size:12px;color:var(--muted)}.security-band{background:var(--pine);color:#fff}.security-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:45px;align-items:center}.security-band h2{color:#fff}.security-band p{color:#cfdfd8}.security-points{display:grid;grid-template-columns:1fr 1fr;gap:12px}.security-point{border:1px solid rgba(255,255,255,.16);border-radius:13px;padding:15px;background:rgba(255,255,255,.05);font-size:14px}.security-point b{color:var(--lime);display:block;margin-bottom:4px}.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:62px}.faq-intro p{color:var(--muted)}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;display:flex;justify-content:space-between;gap:18px;text-align:left;padding:19px 0;border:0;background:transparent;color:var(--ink);font-weight:800}.faq-question span:last-child{color:var(--pine);font-size:20px}.faq-answer{display:none;padding:0 28px 19px 0;color:var(--muted);font-size:15px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}.support-card{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:37px 42px;border:2px solid var(--pine);border-radius:var(--radius-lg);background:#fff}.support-card h2{margin-bottom:8px}.support-card p{margin:0;color:var(--muted)}.support-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.site-footer{background:var(--pine);color:#eef4e9;padding:65px 0 22px}.footer-top{display:grid;grid-template-columns:1.35fr repeat(3,.7fr);gap:36px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.16)}.footer-brand{font-size:18px;font-weight:900;margin-bottom:13px}.footer-desc{max-width:350px;color:#c7d8cf;font-size:14px;line-height:1.75}.footer-col h3{font-size:14px;color:var(--lime);margin-bottom:12px}.footer-col a{display:block;color:#d5e1da;font-size:14px;padding:4px 0}.footer-col a:hover{color:#fff;text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#b9ccc2;font-size:12px}.footer-bottom a{text-decoration:underline}.footer-bottom a:hover{color:#fff}
@media(max-width:1024px){.main-nav{display:none}.menu-btn{display:block}.header-action{margin-left:auto}.mobile-nav{position:absolute;top:78px;left:0;right:0;padding:15px 24px 20px;background:#f6f4ec;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.mobile-nav.open{display:grid}.mobile-nav a{padding:11px 5px;border-bottom:1px solid var(--line);font-weight:800;color:var(--pine)}.hero-grid,.download-layout,.verify-box,.security-grid,.faq-wrap{grid-template-columns:1fr}.visual-stage{max-width:600px;width:100%;margin:auto}.channel-grid{grid-template-columns:1fr 1fr}.channel-card.large{grid-row:span 2}.guide-grid{grid-template-columns:repeat(2,1fr)}.compat-grid{grid-template-columns:repeat(2,1fr)}.compat-item:nth-child(2){border-right:0}.compat-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.footer-top{grid-template-columns:1.4fr 1fr 1fr}.footer-top .footer-col:last-child{display:none}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--max))}.section{padding:67px 0}.hero{padding-top:53px}.hero-copy p{font-size:16px}.status-grid{grid-template-columns:1fr 1fr}.status-item{padding:12px;border-bottom:1px solid var(--line)}.status-item:nth-child(2){border-right:0}.status-item:nth-child(n+3){border-bottom:0}.verify-box{padding:27px}.steps-grid{grid-template-columns:1fr 1fr}.featured-news{grid-template-columns:1fr;padding:23px;gap:12px}.news-list{padding:0 20px}.news-item{grid-template-columns:1fr auto;gap:8px}.news-item time{grid-column:1/2}.news-item .badge{grid-column:2;grid-row:1}.updates-grid,.compare-grid{grid-template-columns:1fr}.support-card{padding:30px;align-items:flex-start;flex-direction:column}.support-actions{justify-content:flex-start}.footer-top{grid-template-columns:1fr 1fr}.footer-brand-wrap{grid-column:span 2}.footer-bottom{flex-direction:column}.get-grid{max-width:480px}.news-head{align-items:flex-start;flex-direction:column}}
@media(max-width:520px){h1{font-size:33px}.head-wrap{height:68px}.brand{font-size:13px;max-width:235px}.brand-mark{width:33px;height:33px;flex-basis:33px}.header-action{display:none}.mobile-nav{top:68px}.hero-actions,.support-actions{width:100%}.hero-actions .btn,.support-actions .btn{flex:1}.visual-stage{min-height:348px;padding:20px}.phone-shape{right:14px;width:163px;height:300px}.verify-panel{max-width:260px;padding:16px}.verify-form{grid-template-columns:1fr}.status-item{gap:8px}.status-icon{width:32px;height:32px}.status-item b{font-size:13px}.channel-grid{grid-template-columns:1fr;grid-template-rows:auto}.channel-card{min-height:154px}.channel-card.large{grid-row:auto;min-height:210px}.steps-grid,.guide-grid,.security-points{grid-template-columns:1fr}.compat-grid{grid-template-columns:1fr}.compat-item,.compat-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.compat-item:last-child{border-bottom:0}.download-display{min-height:340px}.download-phone{height:300px}.get-grid{grid-template-columns:1fr}.qr-slot{max-width:130px}.footer-top{grid-template-columns:1fr}.footer-brand-wrap{grid-column:auto}.footer-top .footer-col:last-child{display:block}.news-item{padding:16px 0}.news-item h3{font-size:15px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: article */
:root{
  --pine:#174b42;--pine-dark:#103b34;--lime:#b8d84b;--ink:#1f2b28;--muted:#66736e;
  --paper:#f6f4ec;--white:#fff;--mist:#eaf0e8;--sand:#eee9dd;--warning:#b86132;
  --line:#dce3dc;--radius:18px;--radius-lg:26px;--shadow:0 12px 34px rgba(23,75,66,.08);
  --shadow-hover:0 18px 42px rgba(23,75,66,.15);--max:1240px;
}
*{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}
button,input{font:inherit}
button{cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(calc(100% - 48px),var(--max));margin:auto}
.section{padding:88px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--lime)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 20px;border:1px solid transparent;border-radius:12px;font-weight:800;transition:transform .2s,background .2s,border .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(184,216,75,.75);outline-offset:3px}
.btn-primary{background:var(--pine);color:#fff;box-shadow:0 7px 16px rgba(23,75,66,.17)}
.btn-primary:hover{background:#286257}
.btn-light{background:#fff;border-color:var(--line);color:var(--pine)}
.btn-light:hover{border-color:var(--pine);box-shadow:var(--shadow)}
.btn-lime{background:var(--lime);color:var(--pine-dark)}
.btn-lime:hover{background:#c8e962}
.text-link{color:var(--pine);font-weight:800;display:inline-flex;align-items:center;gap:8px}
.text-link:hover{text-decoration:underline}
.text-link span{transition:transform .2s}
.text-link:hover span{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--mist);color:var(--pine);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800}
.badge.lime{background:#eaf4c7}
.site-header{position:sticky;top:0;z-index:100;background:rgba(246,244,236,.97);border-bottom:1px solid rgba(220,227,220,.8)}
.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:10px;max-width:310px;color:var(--pine);font-weight:900;font-size:15px;line-height:1.35}
.brand-mark{position:relative;width:37px;height:37px;flex:0 0 37px;border-radius:11px;background:var(--pine)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:3px solid var(--lime)}
.brand-mark:before{width:16px;height:16px;left:8px;top:7px}
.brand-mark:after{width:5px;height:5px;right:6px;bottom:6px;border-width:2px}
.main-nav{display:flex;align-items:center;gap:3px}
.main-nav a{padding:9px 11px;border-radius:9px;color:#45534e;font-size:14px;font-weight:700;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:var(--pine);background:var(--mist)}
.header-action{font-size:14px;min-height:42px}
.menu-btn{display:none;border:0;background:none;color:var(--pine);font-size:26px;line-height:1}
.mobile-nav{display:none}
.article-hero{padding:62px 0 48px;background:linear-gradient(180deg,#f6f4ec 0%,#edf2eb 100%);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:0 0 24px;color:var(--muted);font-size:14px}
.breadcrumb span{color:#9aa39f}
.article-head{max-width:930px}
.article-head h1{margin:15px 0 20px;color:var(--pine-dark);font-size:clamp(34px,4vw,46px);line-height:1.28;letter-spacing:-.025em;font-weight:850}
.article-meta{display:flex;flex-wrap:wrap;gap:11px 20px;color:var(--muted);font-size:14px}
.article-meta strong{color:var(--pine)}
.reading-layout{display:grid;grid-template-columns:minmax(0,810px) 270px;justify-content:space-between;gap:56px;align-items:start}
.summary-card{padding:28px 30px;background:var(--mist);border:1px solid #d4e0d3;border-radius:var(--radius-lg)}
.summary-card h2{margin:0 0 10px;font-size:21px;color:var(--pine)}
.summary-card p{margin:0;color:#4f5f58}
.summary-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.summary-points span{padding:6px 10px;border-radius:8px;background:#fff;color:var(--pine);font-size:13px;font-weight:700}
.article-content{margin-top:30px;padding:42px 50px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.article-content h2{margin:42px 0 16px;color:var(--pine);font-size:29px;line-height:1.35}
.article-content h2:first-child{margin-top:0}
.article-content h3{margin:30px 0 12px;color:var(--ink);font-size:21px;line-height:1.4}
.article-content p{margin:0 0 20px;color:#33413c}
.article-content ul,.article-content ol{padding-left:25px;margin:0 0 22px}
.article-content li{margin:7px 0;padding-left:4px}
.article-content blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--lime);background:#f7f8f3;border-radius:0 14px 14px 0;color:#475650}
.article-content table{width:100%;border-collapse:collapse;margin:26px 0;display:table}
.article-content th,.article-content td{padding:13px 15px;border:1px solid var(--line);text-align:left;vertical-align:top}
.article-content th{background:var(--mist);color:var(--pine)}
.article-content img{margin:26px auto;border-radius:14px}
.article-content a{color:var(--pine);font-weight:800;text-decoration:underline;text-decoration-color:rgba(23,75,66,.3)}
.content-empty{text-align:center;padding:34px 10px;color:var(--muted)}
.aside-card{padding:23px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.aside-card+.aside-card{margin-top:16px}
.aside-card h3{margin:0 0 14px;color:var(--pine);font-size:18px}
.aside-list{margin:0;padding:0;list-style:none}
.aside-list li{padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:#4b5b55}
.aside-list li:last-child{padding-bottom:0;border-bottom:0}
.aside-list i{display:inline-block;width:7px;height:7px;margin-right:9px;border-radius:50%;background:var(--lime)}
.download-note{margin-top:32px;padding:28px;background:var(--pine);color:#fff;border-radius:var(--radius-lg);position:relative;overflow:hidden}
.download-note:after{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(184,216,75,.36);border-radius:50%;right:-55px;bottom:-100px}
.download-note>*{position:relative;z-index:1}
.download-note h2{margin:0 0 8px;font-size:24px}
.download-note p{max-width:620px;margin:0;color:#dce8e1}
.download-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.checklist{margin-top:32px;padding:28px;background:var(--sand);border-radius:var(--radius-lg)}
.checklist h2{margin:0 0 18px;color:var(--pine);font-size:26px}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}
.check-item{display:flex;gap:12px;padding:16px;background:rgba(255,255,255,.72);border-radius:13px}
.check-icon{width:28px;height:28px;flex:0 0 28px;display:grid;place-items:center;background:var(--lime);border-radius:50%;color:var(--pine-dark);font-weight:900}
.check-item b{display:block;font-size:15px;color:var(--pine)}
.check-item p{margin:2px 0 0;font-size:13px;line-height:1.65;color:var(--muted)}
.related-section{padding-top:72px}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:27px}
.section-heading h2{margin:8px 0 0;color:var(--pine);font-size:31px;line-height:1.3}
.related-list{display:grid;gap:13px}
.related-card{display:grid;grid-template-columns:110px 1fr auto;gap:20px;align-items:center;padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:.22s}
.related-card:hover{transform:translateY(-2px);border-color:#9ab9a4;box-shadow:var(--shadow-hover)}
.related-card .date{font-size:13px;color:var(--muted)}
.related-card h3{margin:4px 0;font-size:18px;color:var(--ink)}
.related-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.return-panel{padding:34px 38px;border:1px solid #bfd0c2;border-radius:var(--radius-lg);background:linear-gradient(100deg,#fff 0%,#eaf0e8 100%);display:flex;justify-content:space-between;gap:28px;align-items:center}
.return-panel h2{margin:0 0 7px;font-size:25px;color:var(--pine)}
.return-panel p{margin:0;color:var(--muted)}
.return-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.maintenance{margin-top:19px;color:var(--muted);font-size:13px}
.site-footer{margin-top:88px;padding:62px 0 20px;background:var(--pine);color:#edf4ee}
.footer-top{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:38px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.17)}
.footer-brand{font-size:19px;font-weight:900;color:#fff;line-height:1.4}
.footer-desc{max-width:420px;margin:14px 0 0;color:#c8d8d0;font-size:14px;line-height:1.8}
.footer-col h3{margin:0 0 12px;color:var(--lime);font-size:15px}
.footer-col a{display:block;width:max-content;max-width:100%;margin:7px 0;color:#d6e3dc;font-size:14px;transition:color .2s,transform .2s}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:19px;color:#b7c9c0;font-size:13px}
.footer-bottom a:hover{color:var(--lime);text-decoration:underline}
@media(max-width:1024px){
  .main-nav{display:none}.menu-btn{display:block}.header-action{margin-left:auto}.mobile-nav{display:none;padding:8px 0 18px;border-top:1px solid var(--line)}
  .mobile-nav.open{display:grid}.mobile-nav a{padding:11px 3px;color:var(--pine);font-weight:800;border-bottom:1px solid var(--line)}
  .reading-layout{grid-template-columns:1fr}.article-aside{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.aside-card+.aside-card{margin-top:0}
  .footer-top{grid-template-columns:1.5fr repeat(3,1fr);gap:24px}
}
@media(max-width:768px){
  .container{width:min(calc(100% - 32px),var(--max))}.section{padding:62px 0}.header-inner{height:68px}.brand{font-size:13px;max-width:238px}
  .article-hero{padding:43px 0 35px}.article-head h1{font-size:34px}.article-content{padding:29px 23px;border-radius:20px}.article-content h2{font-size:25px}
  .article-content table{min-width:580px}.article-content{overflow:hidden}.article-content>div{overflow-x:auto}.check-grid{grid-template-columns:1fr}.related-card{grid-template-columns:1fr;gap:7px}.related-card>a{margin-top:6px}
  .return-panel{display:block;padding:28px}.return-actions{justify-content:flex-start;margin-top:20px}.footer-top{grid-template-columns:repeat(2,1fr)}.footer-brand-wrap{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin:6px 0}
}
@media(max-width:520px){
  body{font-size:15px}.header-action{display:none}.brand-mark{width:33px;height:33px;flex-basis:33px}.article-meta{gap:7px 14px}.summary-card{padding:22px}.article-content{padding:25px 18px}
  .download-note{padding:24px}.checklist{padding:22px}.section-heading{display:block}.section-heading h2{font-size:26px}.footer-top{grid-template-columns:1fr;gap:25px}.footer-brand-wrap{grid-column:auto}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
  --pine:#174b42;--pine-dark:#103b34;--lime:#b8d84b;--ink:#1f2b28;--muted:#66736e;
  --paper:#f6f4ec;--white:#fff;--mist:#eaf0e8;--sand:#eee9dd;--warning:#b86132;
  --line:#dce3dc;--radius:18px;--radius-lg:26px;--shadow:0 12px 34px rgba(23,75,66,.08);
  --shadow-hover:0 18px 42px rgba(23,75,66,.15);--max:1240px;
}
*{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{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--max));margin:auto}
.section{padding:94px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--lime)}
.section-title{margin:12px 0 14px;font-size:34px;line-height:1.28;letter-spacing:-.03em;color:var(--pine);font-weight:850}
.section-lead{max-width:710px;color:var(--muted);font-size:16px;margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:11px 20px;border:1px solid transparent;border-radius:12px;font-size:15px;font-weight:800;transition:transform .2s,background .2s,border .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(184,216,75,.75);outline-offset:3px}
.btn-primary{background:var(--pine);color:#fff;box-shadow:0 7px 16px rgba(23,75,66,.17)}
.btn-primary:hover{background:#286257;color:#fff}
.btn-light{background:#fff;border-color:var(--line);color:var(--pine)}
.btn-light:hover{border-color:var(--pine);box-shadow:var(--shadow)}
.btn-lime{background:var(--lime);color:var(--pine-dark)}
.btn-lime:hover{background:#c8e962}
.text-link{color:var(--pine);font-weight:800;display:inline-flex;align-items:center;gap:8px}
.text-link:hover{text-decoration:underline}
.text-link span{transition:transform .2s}
.text-link:hover span{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--mist);color:var(--pine);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800}
.badge.lime{background:#eaf4c7}
.site-header{position:sticky;top:0;z-index:100;background:rgba(246,244,236,.97);border-bottom:1px solid rgba(220,227,220,.9)}
.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:10px;max-width:312px;color:var(--pine);font-weight:900;font-size:15px;line-height:1.35}
.brand-mark{position:relative;width:37px;height:37px;flex:0 0 37px;border-radius:11px;background:var(--pine)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:3px solid var(--lime)}
.brand-mark:before{width:16px;height:16px;left:8px;top:7px}
.brand-mark:after{width:5px;height:5px;right:6px;bottom:6px;border-width:2px}
.main-nav{display:flex;align-items:center;gap:3px}
.main-nav a{padding:9px 11px;border-radius:9px;color:#45534e;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s}
.main-nav a:hover,.main-nav a.active{color:var(--pine);background:var(--mist)}
.header-action{font-size:14px;min-height:42px;white-space:nowrap}
.menu-btn{display:none;border:0;background:none;color:var(--pine);font-size:26px;line-height:1}
.mobile-nav{display:none}
.page-hero{position:relative;overflow:hidden;padding:76px 0 82px;background:linear-gradient(135deg,#f6f4ec 0%,#eaf0e8 100%)}
.page-hero:before{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(23,75,66,.12);border-radius:50%;right:-110px;top:-250px}
.page-hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(184,216,75,.65);border-radius:50%;left:-130px;bottom:-225px}
.breadcrumb{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:30px;color:var(--muted);font-size:13px;font-weight:700}
.breadcrumb span{color:#a0aaa5}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:end}
.page-hero h1{max-width:760px;margin:13px 0 20px;color:var(--pine);font-size:50px;line-height:1.2;letter-spacing:-.05em;font-weight:900}
.page-hero p{max-width:730px;margin:0;color:var(--muted);font-size:18px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-panel{padding:27px;border-radius:var(--radius-lg);background:var(--pine);color:#fff;box-shadow:var(--shadow)}
.hero-panel .panel-kicker{color:var(--lime);font-weight:800;font-size:13px;letter-spacing:.08em}
.hero-panel h2{margin:10px 0 18px;font-size:24px;line-height:1.35;font-weight:850}
.panel-line{display:flex;gap:11px;padding:13px 0;border-top:1px solid rgba(255,255,255,.16);font-size:14px;color:#d9e5df}
.panel-dot{width:10px;height:10px;flex:0 0 10px;margin-top:8px;border-radius:50%;background:var(--lime)}
.verify-section{background:var(--mist)}
.verify-shell{display:grid;grid-template-columns:.86fr 1.14fr;gap:45px;align-items:center}
.verify-card{padding:28px;background:#fff;border:1px solid #d5e0d5;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.verify-card h2{margin:0 0 8px;font-size:27px;line-height:1.35;color:var(--pine);font-weight:850}
.verify-card p{margin:0 0 20px;color:var(--muted);font-size:14px}
.verify-form{display:grid;grid-template-columns:1fr auto;gap:10px}
.verify-form input{min-width:0;padding:13px 15px;border:1px solid #bdcec1;border-radius:12px;background:#fff;color:var(--ink);outline:none}
.verify-form input::placeholder{color:#87928d}
.verify-result{display:flex;gap:10px;margin-top:16px;padding:13px 14px;border-radius:12px;background:#fff8f1;color:#79563f;font-size:13px;line-height:1.65}
.verify-result strong{color:var(--warning)}
.verify-note{display:grid;gap:14px}
.mini-point{display:flex;align-items:flex-start;gap:13px;padding:15px 0;border-bottom:1px solid rgba(23,75,66,.13)}
.mini-point:last-child{border-bottom:0}
.mini-icon{width:38px;height:38px;display:grid;place-items:center;flex:0 0 38px;border-radius:12px;background:#fff;color:var(--pine);font-size:18px;font-weight:900}
.mini-point b{display:block;color:var(--pine);font-size:15px}
.mini-point p{margin:2px 0 0;color:var(--muted);font-size:14px;line-height:1.65}
.points-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.point-card{padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.22s}
.point-card:hover{transform:translateY(-3px);border-color:#94b6a1;box-shadow:var(--shadow-hover)}
.point-num{display:inline-grid;place-items:center;width:35px;height:35px;border-radius:50%;background:var(--mist);color:var(--pine);font-weight:900;font-size:14px}
.point-card h3{margin:17px 0 8px;color:var(--pine);font-size:20px;font-weight:850}
.point-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
.update-band{padding:0 0 94px}
.update-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:25px;padding:31px 35px;border:1px solid #d8ded4;border-radius:var(--radius-lg);background:var(--sand)}
.update-main{display:flex;gap:18px;align-items:flex-start}
.update-symbol{display:grid;place-items:center;width:50px;height:50px;flex:0 0 50px;border-radius:16px;background:var(--pine);color:var(--lime);font-size:23px;font-weight:900}
.update-main h2{margin:0 0 6px;color:var(--pine);font-size:23px;font-weight:850}
.update-main p{margin:0;color:var(--muted);font-size:14px}
.update-info{display:grid;grid-template-columns:repeat(2,1fr);gap:11px}
.update-info div{padding:11px 14px;background:rgba(255,255,255,.7);border-radius:12px}
.update-info small{display:block;color:var(--muted);font-size:12px}
.update-info b{display:block;color:var(--pine);font-size:14px}
.content-section{background:#fff}
.content-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:34px}
.content-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article-card{display:flex;flex-direction:column;min-height:255px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.22s}
.article-card:hover{transform:translateY(-3px);border-color:#94b6a1;box-shadow:var(--shadow-hover)}
.article-card .date{margin-top:16px;color:var(--muted);font-size:13px}
.article-card h3{margin:12px 0 10px;color:var(--pine);font-size:20px;line-height:1.45;font-weight:850}
.article-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
.article-card .text-link{margin-top:auto;padding-top:16px;font-size:14px}
.faq-section{background:var(--paper)}
.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:72px;align-items:start}
.faq-side{position:sticky;top:106px}
.faq-side p{color:var(--muted);margin:0 0 22px}
.faq-list{display:grid;gap:10px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 20px;border:0;background:#fff;color:var(--pine);font-weight:850;text-align:left}
.faq-question i{font-style:normal;font-size:24px;font-weight:400;transition:.2s}
.faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.8}
.faq-item.open{border-color:#a7c1ad}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question i{transform:rotate(45deg)}
.support-section{padding:92px 0}
.support-card{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:39px 42px;border:2px solid var(--pine);border-radius:var(--radius-lg);background:#fff}
.support-card h2{margin:0 0 9px;color:var(--pine);font-size:30px;font-weight:850}
.support-card p{margin:0;color:var(--muted);max-width:700px}
.support-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px}
.site-footer{padding:62px 0 23px;background:var(--pine);color:#edf4ed}
.footer-top{display:grid;grid-template-columns:1.65fr repeat(3,.72fr);gap:38px;padding-bottom:42px}
.footer-brand{max-width:320px;color:#fff;font-size:20px;font-weight:900;line-height:1.4}
.footer-desc{max-width:420px;margin:14px 0 0;color:#c9d8d0;font-size:14px;line-height:1.8}
.footer-col h3{margin:0 0 12px;color:var(--lime);font-size:14px;font-weight:850}
.footer-col a{display:block;width:max-content;max-width:100%;margin:8px 0;color:#d6e3dc;font-size:14px;transition:.2s}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid rgba(255,255,255,.17);color:#bdd0c6;font-size:12px}
.footer-bottom a:hover{color:#fff;text-decoration:underline}
@media (max-width:1024px){
  .main-nav{gap:0}.main-nav a{padding:8px 7px;font-size:13px}
  .hero-grid,.verify-shell,.faq-layout{gap:35px}
  .page-hero h1{font-size:42px}
  .footer-top{grid-template-columns:1.35fr repeat(3,.8fr);gap:22px}
}
@media (max-width:768px){
  .container{width:min(calc(100% - 32px),var(--max))}
  .section{padding:64px 0}
  .header-inner{min-height:68px}
  .brand{font-size:13px;max-width:260px}
  .main-nav,.header-action{display:none}
  .menu-btn{display:block}
  .mobile-nav{padding:0 16px 16px;background:var(--paper);border-top:1px solid var(--line)}
  .mobile-nav.open{display:grid}
  .mobile-nav a{padding:11px 13px;border-radius:10px;color:var(--pine);font-weight:800;font-size:14px}
  .mobile-nav a.active{background:var(--mist)}
  .page-hero{padding:56px 0 62px}
  .hero-grid,.verify-shell,.faq-layout{grid-template-columns:1fr}
  .page-hero h1{font-size:34px}
  .page-hero p{font-size:16px}
  .hero-panel{padding:23px}
  .points-grid,.content-list{grid-template-columns:1fr 1fr}
  .update-inner{grid-template-columns:1fr;padding:27px}
  .faq-side{position:static}
  .support-card{grid-template-columns:1fr;padding:30px}
  .support-actions{justify-content:flex-start}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand-wrap{grid-column:1/-1}
}
@media (max-width:520px){
  body{font-size:15px}
  .container{width:min(calc(100% - 28px),var(--max))}
  .section{padding:56px 0}
  .section-title{font-size:28px}
  .page-hero h1{font-size:31px}
  .verify-form{grid-template-columns:1fr}
  .points-grid,.content-list,.update-info{grid-template-columns:1fr}
  .content-head{display:block}
  .content-head .text-link{margin-top:16px}
  .support-card{padding:25px}
  .support-card h2{font-size:25px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .footer-brand-wrap{grid-column:auto}
  .footer-bottom{display:grid;gap:10px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category2 */
:root{
      --pine:#174b42;--pine-dark:#103b34;--lime:#b8d84b;--ink:#1f2b28;--muted:#66736e;
      --paper:#f6f4ec;--white:#fff;--mist:#eaf0e8;--sand:#eee9dd;--warning:#b86132;
      --line:#dce3dc;--radius:18px;--radius-lg:26px;--shadow:0 12px 34px rgba(23,75,66,.08);
      --shadow-hover:0 18px 42px rgba(23,75,66,.15);--max:1240px;
    }
    *{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}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(calc(100% - 48px),var(--max));margin:auto}
    .section{padding:92px 0}
    .section-soft{background:var(--mist)}
    .section-sand{background:var(--sand)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--lime)}
    .section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-heading h2{margin:8px 0 0;font-size:34px;line-height:1.3;letter-spacing:-.03em;font-weight:850}
    .section-lead{max-width:660px;margin:0;color:var(--muted);font-size:16px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:11px 20px;border:1px solid transparent;border-radius:12px;font-weight:800;transition:transform .2s,background .2s,border .2s,box-shadow .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(184,216,75,.78);outline-offset:3px}
    .btn-primary{background:var(--pine);color:#fff;box-shadow:0 7px 16px rgba(23,75,66,.16)}
    .btn-primary:hover{background:#286257;color:#fff}
    .btn-light{background:#fff;border-color:var(--line);color:var(--pine)}
    .btn-light:hover{border-color:var(--pine);box-shadow:var(--shadow)}
    .btn-lime{background:var(--lime);color:var(--pine-dark)}
    .btn-lime:hover{background:#c8e962;color:var(--pine-dark)}
    .badge{display:inline-flex;align-items:center;gap:6px;background:var(--mist);color:var(--pine);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800}
    .badge.lime{background:#eaf4c7}
    .text-link{color:var(--pine);font-weight:800;display:inline-flex;align-items:center;gap:8px}
    .text-link span{transition:transform .2s}
    .text-link:hover{text-decoration:underline}
    .text-link:hover span{transform:translateX(4px)}
    .site-header{position:sticky;top:0;z-index:100;background:rgba(246,244,236,.97);border-bottom:1px solid rgba(220,227,220,.9)}
    .header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;max-width:315px;color:var(--pine);font-weight:900;font-size:15px;line-height:1.35}
    .brand-mark{position:relative;width:37px;height:37px;flex:0 0 37px;border-radius:11px;background:var(--pine)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:3px solid var(--lime)}
    .brand-mark:before{width:16px;height:16px;left:8px;top:7px}
    .brand-mark:after{width:5px;height:5px;right:6px;bottom:6px;border-width:2px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{padding:9px 11px;border-radius:9px;color:#45534e;font-size:14px;font-weight:700;white-space:nowrap}
    .main-nav a:hover,.main-nav a.active{color:var(--pine);background:var(--mist)}
    .header-action{font-size:14px;min-height:42px}
    .menu-btn{display:none;border:0;background:transparent;color:var(--pine);font-size:27px;line-height:1}
    .mobile-nav{display:none}
    .breadcrumb-bar{padding:22px 0 0;color:var(--muted);font-size:14px}
    .breadcrumb-bar a:hover{color:var(--pine);text-decoration:underline}
    .breadcrumb-bar span{padding:0 8px;color:#a0aaa5}
    .download-intro{padding:48px 0 58px;background:linear-gradient(135deg,var(--paper) 0%,#edf2e9 100%);overflow:hidden}
    .intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
    .intro-copy h1{max-width:700px;margin:13px 0 18px;color:var(--pine);font-size:48px;line-height:1.22;letter-spacing:-.045em;font-weight:850}
    .intro-copy p{max-width:670px;margin:0;color:var(--muted);font-size:18px}
    .intro-notes{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
    .intro-notes span{display:inline-flex;align-items:center;gap:7px;padding:6px 10px;background:#fff;border:1px solid var(--line);border-radius:9px;color:#52605a;font-size:13px;font-weight:700}
    .intro-notes i{width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .download-mini-panel{position:relative;padding:26px;border-radius:var(--radius-lg);background:var(--pine);color:#fff;box-shadow:var(--shadow)}
    .download-mini-panel:after{content:"";position:absolute;width:250px;height:250px;border:1px solid rgba(184,216,75,.32);border-radius:50%;right:-110px;top:-140px}
    .panel-top{position:relative;z-index:1;display:flex;align-items:center;gap:14px}
    .app-logo{display:grid;place-items:center;width:52px;height:52px;border-radius:16px;background:var(--lime);color:var(--pine-dark);font-size:21px;font-weight:900}
    .panel-top b{display:block;font-size:18px}
    .panel-top small{display:block;color:#c9d8d1;font-size:13px}
    .panel-lines{position:relative;z-index:1;margin:26px 0 20px}
    .panel-lines span{display:block;height:10px;margin-top:11px;border-radius:99px;background:rgba(255,255,255,.18)}
    .panel-lines span:nth-child(2){width:78%}
    .panel-lines span:nth-child(3){width:56%;background:rgba(184,216,75,.63)}
    .panel-status{position:relative;z-index:1;display:flex;justify-content:space-between;padding-top:16px;border-top:1px solid rgba(255,255,255,.16);color:#d8e5df;font-size:13px}
    .download-card{display:grid;grid-template-columns:300px 1fr;gap:42px;align-items:center;padding:38px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
    .phone-shell{position:relative;width:225px;height:430px;margin:auto;padding:13px;border:8px solid #263a35;border-radius:38px;background:#172521;box-shadow:14px 18px 0 rgba(23,75,66,.08)}
    .phone-speaker{width:72px;height:7px;margin:0 auto 9px;border-radius:99px;background:#40514c}
    .phone-screen{height:374px;padding:18px 15px;border-radius:24px;background:#f5f8f0;overflow:hidden}
    .phone-screen .app-logo{width:42px;height:42px;border-radius:13px;font-size:17px}
    .phone-screen h3{margin:14px 0 3px;color:var(--pine);font-size:17px;font-weight:850}
    .phone-screen p{margin:0;color:var(--muted);font-size:11px}
    .screen-banner{height:82px;margin:18px 0 13px;border-radius:13px;background:var(--pine);position:relative;overflow:hidden}
    .screen-banner:before{content:"";position:absolute;width:86px;height:86px;right:-15px;top:-26px;border:1px solid rgba(184,216,75,.65);border-radius:50%}
    .screen-banner:after{content:"";position:absolute;left:13px;bottom:15px;width:80px;height:8px;border-radius:9px;background:var(--lime)}
    .screen-item{display:flex;align-items:center;justify-content:space-between;margin-top:10px;padding:10px;background:#fff;border-radius:10px;color:var(--pine);font-size:11px;font-weight:800}
    .screen-item em{font-style:normal;color:#6f7e77;font-weight:600}
    .download-content h2{margin:10px 0 12px;font-size:31px;color:var(--pine);line-height:1.32;font-weight:850}
    .download-content>p{color:var(--muted);margin:0 0 20px}
    .version-meta{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}
    .version-meta span{padding:6px 10px;border-radius:8px;background:var(--sand);font-size:13px;color:#52605a}
    .download-action-grid{display:grid;grid-template-columns:1fr 126px;gap:20px;align-items:center;margin-top:24px}
    .platform-buttons{display:grid;gap:10px}
    .platform-buttons .btn{justify-content:flex-start}
    .qr-box{padding:10px;background:#fff;border:1px dashed #a7b9aa;border-radius:15px;text-align:center}
    .qr-pattern{width:92px;height:92px;margin:auto;background:
      linear-gradient(90deg,#174b42 10%,transparent 10% 20%,#174b42 20% 32%,transparent 32% 40%,#174b42 40% 48%,transparent 48% 60%,#174b42 60% 75%,transparent 75% 83%,#174b42 83%),
      linear-gradient(#174b42 10%,transparent 10% 20%,#174b42 20% 31%,transparent 31% 42%,#174b42 42% 53%,transparent 53% 63%,#174b42 63% 76%,transparent 76% 86%,#174b42 86%);
      background-size:18px 18px;border:7px solid #fff;outline:1px solid #dce3dc}
    .qr-box small{display:block;margin-top:9px;color:var(--muted);font-size:12px}
    .safety-tip{display:flex;gap:10px;margin-top:22px;padding:12px 14px;border-radius:12px;background:#fff7ee;color:#7f4b2e;font-size:13px}
    .safety-tip strong{color:var(--warning)}
    .platform-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .platform-card{padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:transform .22s,border .22s,box-shadow .22s}
    .platform-card:hover{transform:translateY(-4px);border-color:#91b09b;box-shadow:var(--shadow-hover)}
    .platform-icon{display:grid;place-items:center;width:46px;height:46px;margin-bottom:18px;border-radius:14px;background:var(--mist);color:var(--pine);font-weight:900;font-size:18px}
    .platform-card h3{margin:0 0 9px;font-size:21px;color:var(--pine);font-weight:850}
    .platform-card p{min-height:84px;margin:0;color:var(--muted);font-size:14px}
    .platform-card .badge{margin:17px 0}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:12px}
    .timeline:before{content:"";position:absolute;top:27px;left:7%;right:7%;height:1px;background:#a9c0ad}
    .timeline-step{position:relative;padding:0 8px;text-align:center}
    .step-no{position:relative;z-index:1;display:grid;place-items:center;width:54px;height:54px;margin:0 auto 18px;border-radius:50%;background:var(--pine);border:6px solid var(--mist);color:var(--lime);font-weight:900}
    .timeline-step h3{margin:0 0 7px;color:var(--pine);font-size:18px;font-weight:850}
    .timeline-step p{margin:0;color:var(--muted);font-size:14px}
    .update-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:34px;align-items:start}
    .update-summary{padding:28px;border-radius:var(--radius-lg);background:var(--pine);color:#fff}
    .update-summary h2{margin:13px 0;color:#fff;font-size:31px;line-height:1.3;font-weight:850}
    .update-summary p{color:#d4e2dc;font-size:15px}
    .update-summary .btn{margin-top:8px}
    .version-list{display:grid;gap:13px}
    .version-item{display:grid;grid-template-columns:112px 1fr auto;gap:18px;align-items:center;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:border .2s,box-shadow .2s}
    .version-item:hover{border-color:#94b6a1;box-shadow:var(--shadow)}
    .version-code{font-size:18px;line-height:1.3;color:var(--pine);font-weight:900}
    .version-code small{display:block;margin-top:4px;color:var(--muted);font-size:12px;font-weight:600}
    .version-item h3{margin:0 0 4px;color:var(--ink);font-size:16px;font-weight:850}
    .version-item p{margin:0;color:var(--muted);font-size:13px}
    .compat-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .compat-card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
    .compat-card h3{margin:0 0 14px;color:var(--pine);font-size:22px;font-weight:850}
    .check-list{padding:0;margin:0;list-style:none}
    .check-list li{position:relative;padding:10px 0 10px 28px;border-bottom:1px solid #edf0ec;color:#50605a;font-size:14px}
    .check-list li:last-child{border-bottom:0}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--pine);font-weight:900}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .article-card{display:flex;flex-direction:column;min-height:245px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:transform .22s,border .22s,box-shadow .22s}
    .article-card:hover{transform:translateY(-4px);border-color:#94b6a1;box-shadow:var(--shadow-hover)}
    .article-card h3{margin:16px 0 10px;color:var(--ink);font-size:20px;line-height:1.45;font-weight:850}
    .article-card:hover h3{color:var(--pine)}
    .article-card p{margin:0;color:var(--muted);font-size:14px}
    .article-card .text-link{margin-top:auto;padding-top:17px;font-size:14px}
    .faq-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:48px;align-items:start}
    .faq-copy{padding:10px 0}
    .faq-copy h2{margin:10px 0 14px;color:var(--pine);font-size:34px;line-height:1.3;font-weight:850}
    .faq-copy p{color:var(--muted)}
    .faq-list{display:grid;gap:10px}
    .faq-item{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:14px}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 20px;border:0;background:#fff;color:var(--ink);text-align:left;font-size:16px;font-weight:850}
    .faq-question:hover{color:var(--pine)}
    .faq-question b{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--mist);color:var(--pine);transition:transform .2s}
    .faq-item.open .faq-question b{transform:rotate(45deg);background:var(--lime)}
    .faq-answer{display:none;padding:0 20px 19px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .support-card{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:32px 36px;border:2px solid var(--pine);border-radius:var(--radius-lg);background:#fff}
    .support-card h2{margin:0 0 8px;color:var(--pine);font-size:28px;font-weight:850}
    .support-card p{max-width:680px;margin:0;color:var(--muted)}
    .support-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
    .site-footer{padding:62px 0 25px;background:var(--pine);color:#edf4ef}
    .footer-top{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:36px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.17)}
    .footer-brand{max-width:340px;font-size:20px;line-height:1.4;font-weight:900}
    .footer-desc{max-width:410px;margin:14px 0 0;color:#c8d8d1;font-size:14px;line-height:1.8}
    .footer-col h3{margin:0 0 13px;color:var(--lime);font-size:14px;font-weight:850}
    .footer-col a{display:block;width:max-content;max-width:100%;margin:7px 0;color:#d8e5df;font-size:14px}
    .footer-col a:hover{color:#fff;text-decoration:underline}
    .footer-bottom{display:flex;justify-content:space-between;gap:24px;padding-top:22px;color:#c3d3cc;font-size:13px}
    .footer-bottom a:hover{color:#fff;text-decoration:underline}
    @media (max-width:1100px){
      .main-nav a{padding:8px 7px;font-size:13px}
      .intro-grid,.download-card{gap:28px}
      .footer-top{grid-template-columns:1.5fr repeat(3,1fr);gap:22px}
    }
    @media (max-width:1024px){
      .main-nav,.header-action{display:none}
      .menu-btn{display:block}
      .mobile-nav{padding:0 24px 18px}
      .mobile-nav.open{display:grid;gap:6px}
      .mobile-nav a{padding:11px 13px;border-radius:10px;color:#43524c;font-weight:800}
      .mobile-nav a.active,.mobile-nav a:hover{background:var(--mist);color:var(--pine)}
      .intro-grid{grid-template-columns:1fr .75fr}
      .download-card{grid-template-columns:240px 1fr}
      .phone-shell{transform:scale(.9);transform-origin:center}
      .platform-grid,.article-list{grid-template-columns:repeat(2,1fr)}
      .article-card:last-child{grid-column:span 2}
      .faq-layout{gap:30px}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--max))}
      .section{padding:64px 0}
      .header-inner{min-height:68px}
      .brand{max-width:270px;font-size:13px}
      .breadcrumb-bar{padding-top:16px}
      .intro-grid,.download-card,.update-layout,.faq-layout{grid-template-columns:1fr}
      .download-intro{padding:35px 0 44px}
      .intro-copy h1{font-size:34px}
      .intro-copy p{font-size:16px}
      .download-mini-panel{max-width:570px}
      .phone-shell{transform:none}
      .download-card{padding:28px 22px}
      .download-action-grid{grid-template-columns:1fr}
      .qr-box{display:grid;grid-template-columns:92px 1fr;align-items:center;gap:14px;text-align:left}
      .qr-box small{margin:0}
      .section-heading{display:block;margin-bottom:28px}
      .section-heading h2,.faq-copy h2{font-size:28px}
      .section-lead{margin-top:13px}
      .timeline{grid-template-columns:1fr;gap:22px;margin-left:10px}
      .timeline:before{top:12px;bottom:12px;left:26px;right:auto;width:1px;height:auto}
      .timeline-step{display:grid;grid-template-columns:54px 1fr;column-gap:17px;text-align:left;padding:0}
      .step-no{grid-row:span 2;margin:0}
      .timeline-step h3{align-self:end}
      .timeline-step p{align-self:start}
      .version-item{grid-template-columns:1fr auto;gap:10px}
      .version-item>div:nth-child(2){grid-column:span 2}
      .compat-grid{grid-template-columns:1fr}
      .support-card{display:block;padding:28px}
      .support-actions{justify-content:flex-start;margin-top:20px}
      .footer-top{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand-wrap{grid-column:span 2}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .container{width:min(calc(100% - 28px),var(--max))}
      .brand-mark{width:34px;height:34px;flex-basis:34px}
      .intro-copy h1{font-size:31px}
      .intro-notes{gap:7px}
      .download-card{padding:23px 16px}
      .phone-shell{width:210px;height:407px;padding:12px}
      .phone-screen{height:354px}
      .platform-grid,.article-list{grid-template-columns:1fr}
      .article-card:last-child{grid-column:auto}
      .platform-card p{min-height:0}
      .version-item{padding:17px}
      .faq-question{padding:16px;font-size:15px}
      .faq-answer{padding:0 16px 16px}
      .support-card h2{font-size:24px}
      .support-actions .btn{width:100%}
      .footer-top{grid-template-columns:1fr;gap:22px}
      .footer-brand-wrap{grid-column:auto}
    }
    @media (prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}
    }

/* roulang page: category3 */
:root{
      --pine:#174b42;--pine-dark:#103b34;--lime:#b8d84b;--ink:#1f2b28;--muted:#66736e;
      --paper:#f6f4ec;--white:#fff;--mist:#eaf0e8;--sand:#eee9dd;--warning:#b86132;
      --line:#dce3dc;--radius:18px;--radius-lg:26px;--shadow:0 12px 34px rgba(23,75,66,.08);
      --shadow-hover:0 18px 42px rgba(23,75,66,.15);--max:1240px;
    }
    *{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}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(calc(100% - 48px),var(--max));margin:auto}
    .section{padding:94px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--lime)}
    .section-title{max-width:760px;margin:10px 0 14px;font-size:34px;line-height:1.28;letter-spacing:-.03em;color:var(--pine);font-weight:850}
    .section-lead{max-width:720px;margin:0;color:var(--muted);font-size:17px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 20px;border:1px solid transparent;border-radius:12px;font-weight:800;transition:transform .2s,background .2s,border .2s,box-shadow .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(184,216,75,.75);outline-offset:3px}
    .btn-primary{background:var(--pine);color:#fff;box-shadow:0 7px 16px rgba(23,75,66,.17)}
    .btn-primary:hover{background:#286257}
    .btn-light{background:#fff;border-color:var(--line);color:var(--pine)}
    .btn-light:hover{border-color:var(--pine);box-shadow:var(--shadow)}
    .text-link{color:var(--pine);font-weight:800;display:inline-flex;align-items:center;gap:8px}
    .text-link:hover{text-decoration:underline}
    .text-link:hover span{transform:translateX(4px)}
    .text-link span{transition:transform .2s}
    .badge{display:inline-flex;align-items:center;gap:6px;background:var(--mist);color:var(--pine);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800}
    .badge.lime{background:#eaf4c7}
    .badge.sand{background:var(--sand);color:#5e5949}
    .site-header{position:sticky;top:0;z-index:100;background:rgba(246,244,236,.97);border-bottom:1px solid rgba(220,227,220,.8)}
    .header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;max-width:310px;color:var(--pine);font-weight:900;font-size:15px;line-height:1.35}
    .brand-mark{position:relative;width:37px;height:37px;flex:0 0 37px;border-radius:11px;background:var(--pine)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:3px solid var(--lime)}
    .brand-mark:before{width:16px;height:16px;left:8px;top:7px}
    .brand-mark:after{width:5px;height:5px;right:6px;bottom:6px;border-width:2px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{padding:9px 11px;border-radius:9px;color:#45534e;font-size:14px;font-weight:700;white-space:nowrap}
    .main-nav a:hover,.main-nav a.active{color:var(--pine);background:var(--mist)}
    .header-action{font-size:14px;min-height:42px}
    .menu-btn{display:none;border:0;background:none;color:var(--pine);font-size:26px;line-height:1}
    .mobile-nav{display:none}
    .news-hero{position:relative;overflow:hidden;padding:72px 0 64px;background:linear-gradient(135deg,#eef2eb 0%,#f6f4ec 53%,#e7eee6 100%);border-bottom:1px solid var(--line)}
    .news-hero:before{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(23,75,66,.13);border-radius:50%;right:-150px;top:-250px}
    .news-hero:after{content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(184,216,75,.55);border-radius:50%;left:-110px;bottom:-165px}
    .breadcrumb{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;color:var(--muted);font-size:14px}
    .breadcrumb span{color:#98a29d}
    .news-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:end}
    h1{max-width:760px;margin:12px 0 20px;color:var(--pine);font-size:50px;line-height:1.2;letter-spacing:-.045em;font-weight:850}
    .hero-copy{font-size:18px;color:var(--muted);max-width:690px;margin:0}
    .hero-meta{display:flex;flex-wrap:wrap;gap:11px;margin-top:28px}
    .meta-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:rgba(255,255,255,.74);border:1px solid var(--line);border-radius:10px;color:#52605a;font-size:13px;font-weight:700}
    .meta-dot{width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .news-panel{padding:24px;border-radius:var(--radius-lg);background:var(--pine);color:#fff;box-shadow:var(--shadow)}
    .panel-kicker{display:flex;align-items:center;justify-content:space-between;color:#d6e4dc;font-size:13px;font-weight:700}
    .pulse{width:9px;height:9px;background:var(--lime);border-radius:50%;box-shadow:0 0 0 5px rgba(184,216,75,.15)}
    .panel-line{height:1px;background:rgba(255,255,255,.16);margin:18px 0}
    .panel-item{display:flex;gap:14px;padding:12px 0}
    .panel-icon{width:38px;height:38px;display:grid;place-items:center;flex:0 0 38px;border-radius:12px;background:rgba(184,216,75,.16);color:var(--lime);font-size:17px;font-weight:900}
    .panel-item b{display:block;font-size:15px}
    .panel-item small{display:block;margin-top:2px;color:#cfddd6;font-size:12px;line-height:1.55}
    .feature-wrap{margin-top:-30px;position:relative;z-index:2}
    .feature-card{display:grid;grid-template-columns:160px 1fr auto;gap:28px;align-items:center;padding:30px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
    .feature-date{padding:18px;border-radius:16px;text-align:center;background:var(--mist);color:var(--pine)}
    .feature-date b{display:block;font-size:28px;line-height:1.05}
    .feature-date span{font-size:13px;font-weight:800}
    .feature-content h2{margin:9px 0 8px;color:var(--pine);font-size:25px;line-height:1.35;font-weight:850}
    .feature-content p{margin:0;color:var(--muted)}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
    .topic-card{padding:20px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.22s}
    .topic-card:hover{border-color:#94b6a1;box-shadow:var(--shadow);transform:translateY(-3px)}
    .topic-card strong{display:block;margin:10px 0 5px;color:var(--pine);font-size:17px}
    .topic-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .timeline-area{background:var(--white)}
    .timeline{position:relative;max-width:1000px;margin:42px auto 0;padding-left:44px}
    .timeline:before{content:"";position:absolute;left:12px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--lime),var(--line))}
    .news-item{position:relative;display:grid;grid-template-columns:128px 1fr;gap:30px;padding:0 0 30px}
    .news-item:before{content:"";position:absolute;left:-39px;top:9px;width:12px;height:12px;border:3px solid var(--pine);border-radius:50%;background:var(--paper)}
    .news-time{font-size:14px;color:var(--muted);font-weight:800;padding-top:1px}
    .news-entry{padding:22px 24px;background:var(--paper);border:1px solid transparent;border-radius:16px;transition:.22s}
    .news-entry:hover{border-color:#aac5b2;box-shadow:var(--shadow)}
    .news-entry h3{margin:10px 0 8px;color:var(--ink);font-size:20px;line-height:1.4;font-weight:850;transition:color .2s}
    .news-entry:hover h3{color:var(--pine)}
    .news-entry p{margin:0;color:var(--muted);font-size:15px}
    .filter-section{padding:68px 0;background:var(--sand)}
    .filter-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:38px;align-items:center}
    .filter-tags{display:flex;flex-wrap:wrap;gap:10px}
    .filter-tags button{padding:10px 15px;border:1px solid #d8d0bc;border-radius:999px;background:#f8f5ed;color:#59635f;font-size:14px;font-weight:800;transition:.2s}
    .filter-tags button:hover,.filter-tags button.active{background:var(--pine);border-color:var(--pine);color:#fff}
    .version-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:stretch}
    .version-board{padding:32px;border-radius:var(--radius-lg);background:var(--pine);color:#fff;box-shadow:var(--shadow)}
    .version-board h2{margin:12px 0;color:#fff;font-size:30px;line-height:1.32;font-weight:850}
    .version-board p{color:#d5e2dc;margin:0 0 22px}
    .version-list{display:grid;gap:11px}
    .version-row{display:grid;grid-template-columns:82px 1fr auto;gap:13px;align-items:center;padding:13px 0;border-top:1px solid rgba(255,255,255,.15)}
    .version-row b{color:var(--lime);font-size:14px}
    .version-row span{font-size:14px}
    .version-row small{color:#c8d8d0;font-size:12px}
    .update-note{display:flex;flex-direction:column;justify-content:center;padding:32px;border-radius:var(--radius-lg);background:var(--mist);border:1px solid #d5e1d4}
    .update-note h3{margin:12px 0;font-size:25px;line-height:1.35;color:var(--pine);font-weight:850}
    .update-note p{color:var(--muted);margin:0 0 20px}
    .check-list{display:grid;gap:13px;margin:0;padding:0;list-style:none}
    .check-list li{display:flex;gap:10px;color:#46564f;font-size:14px}
    .check-list li:before{content:"✓";display:grid;place-items:center;flex:0 0 20px;width:20px;height:20px;margin-top:3px;border-radius:50%;background:#d9ebbd;color:var(--pine);font-weight:900;font-size:12px}
    .reading-section{background:#fff}
    .reading-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:34px}
    .reading-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .reading-card{position:relative;min-height:266px;padding:24px;display:flex;flex-direction:column;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:18px;transition:.22s}
    .reading-card:hover{transform:translateY(-4px);background:#fff;border-color:#91b39e;box-shadow:var(--shadow-hover)}
    .reading-no{margin-top:auto;color:#a1aca5;font-size:13px;font-weight:900;letter-spacing:.08em}
    .reading-card h3{margin:16px 0 9px;color:var(--pine);font-size:20px;line-height:1.42;font-weight:850}
    .reading-card p{margin:0;color:var(--muted);font-size:14px}
    .reading-card .text-link{margin-top:18px;font-size:14px}
    .notice-section{padding:0 0 94px;background:#fff}
    .notice-card{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:36px 42px;border-radius:var(--radius-lg);background:var(--mist);border:1px solid #d1dfd0}
    .notice-copy h2{margin:9px 0;font-size:28px;line-height:1.35;color:var(--pine);font-weight:850}
    .notice-copy p{margin:0;color:var(--muted);max-width:760px}
    .notice-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
    .site-footer{padding:64px 0 24px;background:var(--pine);color:#eef4eb}
    .footer-top{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:35px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.16)}
    .footer-brand{font-size:19px;font-weight:900;line-height:1.45;color:#fff}
    .footer-desc{max-width:410px;margin:13px 0 0;color:#c4d5cd;font-size:14px;line-height:1.75}
    .footer-col h3{margin:0 0 12px;color:var(--lime);font-size:14px;font-weight:850}
    .footer-col a{display:block;margin:7px 0;color:#d6e1db;font-size:14px;transition:color .2s,transform .2s}
    .footer-col a:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;padding-top:20px;color:#b7c9c0;font-size:12px}
    .footer-bottom a{color:#e7f1e8}
    .footer-bottom a:hover{text-decoration:underline}
    @media (max-width:1100px){
      .main-nav a{padding:8px 8px;font-size:13px}
      .feature-card{grid-template-columns:128px 1fr}
      .feature-card>.btn{grid-column:2}
      .topic-grid{grid-template-columns:repeat(2,1fr)}
      .footer-top{grid-template-columns:1.4fr repeat(3,1fr);gap:22px}
    }
    @media (max-width:850px){
      .header-inner{min-height:68px}
      .main-nav,.header-action{display:none}
      .menu-btn{display:block}
      .mobile-nav{padding:0 24px 18px}
      .mobile-nav.open{display:grid;gap:6px}
      .mobile-nav a{padding:11px 13px;border-radius:10px;color:var(--pine);font-size:14px;font-weight:800}
      .mobile-nav a.active,.mobile-nav a:hover{background:var(--mist)}
      .news-hero{padding:52px 0 60px}
      .news-hero-grid,.filter-layout,.version-grid{grid-template-columns:1fr}
      h1{font-size:42px}
      .news-panel{max-width:620px}
      .section{padding:72px 0}
      .reading-grid{grid-template-columns:1fr 1fr}
      .notice-card{grid-template-columns:1fr}
      .notice-actions{justify-content:flex-start}
      .footer-top{grid-template-columns:1fr 1fr}
      .footer-brand-wrap{grid-column:1/-1}
    }
    @media (max-width:560px){
      body{font-size:15px}
      .container{width:min(calc(100% - 32px),var(--max))}
      .section{padding:58px 0}
      .section-title{font-size:28px}
      .section-lead,.hero-copy{font-size:16px}
      h1{font-size:33px;line-height:1.27}
      .news-hero{padding:42px 0 54px}
      .breadcrumb{font-size:13px;margin-bottom:20px}
      .meta-chip{font-size:12px}
      .news-panel{padding:20px}
      .feature-wrap{margin-top:-24px}
      .feature-card{grid-template-columns:1fr;gap:18px;padding:21px}
      .feature-date{width:116px}
      .feature-card>.btn{grid-column:auto;width:100%}
      .feature-content h2{font-size:22px}
      .topic-grid{grid-template-columns:1fr;gap:11px}
      .topic-card{padding:17px}
      .timeline{padding-left:29px;margin-top:30px}
      .timeline:before{left:7px}
      .news-item{grid-template-columns:1fr;gap:10px;padding-bottom:22px}
      .news-item:before{left:-27px}
      .news-entry{padding:18px}
      .news-entry h3{font-size:18px}
      .filter-section{padding:52px 0}
      .version-board,.update-note{padding:24px}
      .version-board h2{font-size:26px}
      .version-row{grid-template-columns:72px 1fr}
      .version-row small{grid-column:2}
      .reading-head{display:block}
      .reading-head .text-link{margin-top:14px}
      .reading-grid{grid-template-columns:1fr}
      .reading-card{min-height:220px}
      .notice-section{padding-bottom:58px}
      .notice-card{padding:26px 22px}
      .notice-copy h2{font-size:24px}
      .footer-top{grid-template-columns:1fr;gap:25px}
      .footer-brand-wrap{grid-column:auto}
      .footer-bottom{display:block;line-height:1.8}
      .footer-bottom span{display:block;margin-bottom:9px}
    }
    @media (prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}
    }

/* roulang page: category4 */
:root{
      --pine:#174b42;--pine-dark:#103b34;--lime:#b8d84b;--ink:#1f2b28;--muted:#66736e;
      --paper:#f6f4ec;--white:#fff;--mist:#eaf0e8;--sand:#eee9dd;--warning:#b86132;
      --line:#dce3dc;--radius:18px;--radius-lg:26px;--shadow:0 12px 34px rgba(23,75,66,.08);
      --shadow-hover:0 18px 42px rgba(23,75,66,.15);--max:1240px;
    }
    *{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}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(calc(100% - 48px),var(--max));margin:auto}
    .section{padding:94px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pine);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--lime)}
    .section-title{margin:10px 0 14px;font-size:34px;line-height:1.3;letter-spacing:-.03em;color:var(--pine);font-weight:850}
    .section-lead{max-width:720px;color:var(--muted);font-size:17px;margin:0 0 34px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 20px;border:1px solid transparent;border-radius:12px;font-weight:800;transition:transform .2s,background .2s,border .2s,box-shadow .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(184,216,75,.75);outline-offset:3px}
    .btn-primary{background:var(--pine);color:#fff;box-shadow:0 7px 16px rgba(23,75,66,.17)}
    .btn-primary:hover{background:#286257}
    .btn-light{background:#fff;border-color:var(--line);color:var(--pine)}
    .btn-light:hover{border-color:var(--pine);box-shadow:var(--shadow)}
    .btn-lime{background:var(--lime);color:var(--pine-dark)}
    .btn-lime:hover{background:#c8e962}
    .text-link{color:var(--pine);font-weight:800;display:inline-flex;align-items:center;gap:8px}
    .text-link:hover{text-decoration:underline}
    .text-link:hover span{transform:translateX(4px)}
    .text-link span{transition:transform .2s}
    .badge{display:inline-flex;align-items:center;gap:6px;background:var(--mist);color:var(--pine);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800}
    .badge.lime{background:#eaf4c7}
    .site-header{position:sticky;top:0;z-index:100;background:rgba(246,244,236,.97);border-bottom:1px solid rgba(220,227,220,.8)}
    .header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{display:flex;align-items:center;gap:10px;max-width:310px;color:var(--pine);font-weight:900;font-size:15px;line-height:1.35}
    .brand-mark{position:relative;width:37px;height:37px;flex:0 0 37px;border-radius:11px;background:var(--pine)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:50%;border:3px solid var(--lime)}
    .brand-mark:before{width:16px;height:16px;left:8px;top:7px}
    .brand-mark:after{width:5px;height:5px;right:6px;bottom:6px;border-width:2px}
    .main-nav{display:flex;align-items:center;gap:3px}
    .main-nav a{padding:9px 11px;border-radius:9px;color:#45534e;font-size:14px;font-weight:700;white-space:nowrap}
    .main-nav a:hover,.main-nav a.active{color:var(--pine);background:var(--mist)}
    .header-action{font-size:14px;min-height:42px}
    .menu-btn{display:none;border:0;background:none;color:var(--pine);font-size:26px;line-height:1}
    .mobile-nav{display:none}
    .page-hero{position:relative;overflow:hidden;padding:78px 0 82px;background:var(--mist);border-bottom:1px solid rgba(23,75,66,.08)}
    .page-hero:before{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(23,75,66,.12);border-radius:50%;right:-130px;top:-270px}
    .page-hero:after{content:"";position:absolute;width:250px;height:250px;border:42px solid rgba(184,216,75,.25);border-radius:50%;left:-100px;bottom:-160px}
    .hero-wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:end}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;color:var(--muted);font-size:14px}
    .breadcrumb span:last-child{color:var(--pine);font-weight:700}
    h1{margin:10px 0 18px;max-width:760px;color:var(--pine);font-size:50px;line-height:1.2;letter-spacing:-.045em;font-weight:850}
    .hero-copy p{max-width:730px;margin:0;color:var(--muted);font-size:18px}
    .hero-status{padding:27px;background:var(--pine);border-radius:var(--radius-lg);color:#fff;box-shadow:var(--shadow)}
    .hero-status h2{margin:0 0 15px;font-size:19px;font-weight:800}
    .hero-status p{margin:0;color:#d7e4de;font-size:14px;line-height:1.75}
    .status-lines{display:grid;gap:11px;margin-top:21px}
    .status-line{display:flex;align-items:center;gap:10px;padding-top:11px;border-top:1px solid rgba(255,255,255,.16);font-size:14px}
    .status-dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(184,216,75,.13)}
    .route-section{padding-top:86px}
    .route-board{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
    .route-item{position:relative;min-height:222px;padding:25px 21px;border-right:1px solid var(--line);transition:.22s}
    .route-item:last-child{border-right:0}
    .route-item:hover{background:var(--mist)}
    .route-num{display:block;margin-bottom:26px;color:var(--pine);font-size:13px;font-weight:900}
    .route-icon{display:grid;place-items:center;width:44px;height:44px;margin-bottom:17px;border-radius:13px;background:var(--mist);color:var(--pine);font-size:20px;font-weight:900}
    .route-item:nth-child(2) .route-icon,.route-item:nth-child(4) .route-icon{background:#eaf4c7}
    .route-item h3{margin:0 0 8px;font-size:18px;color:var(--pine);font-weight:850}
    .route-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .guide-bg{background:#fff}
    .guide-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
    .guide-list{display:grid;gap:14px}
    .guide-card{display:flex;align-items:flex-start;gap:18px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.22s}
    .guide-card:hover{border-color:#92b3a0;box-shadow:var(--shadow);transform:translateY(-2px)}
    .guide-index{display:grid;place-items:center;flex:0 0 42px;width:42px;height:42px;border-radius:12px;background:var(--pine);color:var(--lime);font-size:14px;font-weight:900}
    .guide-card h3{margin:0 0 5px;color:var(--pine);font-size:19px;font-weight:850}
    .guide-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .guide-card .text-link{margin-top:9px;font-size:14px}
    .guide-panel{display:flex;flex-direction:column;justify-content:space-between;padding:32px;border-radius:var(--radius-lg);background:var(--sand)}
    .guide-panel h3{margin:13px 0 12px;color:var(--pine);font-size:25px;line-height:1.35;font-weight:850}
    .guide-panel p{margin:0;color:#5e6964;font-size:15px}
    .guide-panel .btn{align-self:flex-start;margin-top:26px}
    .check-section{background:var(--pine);color:#fff}
    .check-section .eyebrow{color:var(--lime)}
    .check-section .section-title{color:#fff}
    .check-section .section-lead{color:#d4e0da}
    .check-layout{display:grid;grid-template-columns:.84fr 1.16fr;gap:50px;align-items:start}
    .security-seal{padding:30px;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-lg);background:rgba(255,255,255,.06)}
    .seal-circle{display:grid;place-items:center;width:92px;height:92px;margin-bottom:22px;border:1px solid rgba(184,216,75,.75);border-radius:50%;color:var(--lime);font-size:37px}
    .security-seal h3{margin:0 0 11px;font-size:25px;font-weight:850}
    .security-seal p{margin:0;color:#d4e0da;font-size:15px}
    .check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}
    .check-item{display:flex;align-items:flex-start;gap:13px;padding:19px;border:1px solid rgba(255,255,255,.16);border-radius:15px;background:rgba(255,255,255,.05)}
    .check-symbol{display:grid;place-items:center;flex:0 0 25px;width:25px;height:25px;border-radius:50%;background:var(--lime);color:var(--pine-dark);font-size:14px;font-weight:900}
    .check-item b{display:block;margin-bottom:3px;font-size:15px}
    .check-item span{display:block;color:#d4e0da;font-size:13px;line-height:1.65}
    .device-layout{display:grid;grid-template-columns:.93fr 1.07fr;gap:25px}
    .device-panel{padding:31px;border-radius:var(--radius-lg);background:var(--mist)}
    .device-panel h3{margin:10px 0 12px;color:var(--pine);font-size:25px;font-weight:850}
    .device-panel p{margin:0;color:var(--muted);font-size:15px}
    .signal-list{display:grid;gap:12px;margin-top:24px}
    .signal-line{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px solid rgba(23,75,66,.12);font-size:14px}
    .signal-line:last-child{border-bottom:0}
    .signal-line strong{color:var(--pine)}
    .signal-line span{color:var(--muted);text-align:right}
    .support-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .support-card{padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.22s}
    .support-card:hover{border-color:#92b3a0;box-shadow:var(--shadow-hover)}
    .support-icon{display:grid;place-items:center;width:43px;height:43px;margin-bottom:17px;border-radius:12px;background:var(--sand);color:var(--pine);font-size:20px;font-weight:900}
    .support-card h3{margin:0 0 8px;color:var(--pine);font-size:18px;font-weight:850}
    .support-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .faq-area{background:#fff}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:60px;align-items:start}
    .faq-side{position:sticky;top:104px}
    .faq-side .section-title{font-size:32px}
    .faq-side p{color:var(--muted);margin:0}
    .faq-list{display:grid;gap:12px}
    .faq-item{border:1px solid var(--line);border-radius:15px;overflow:hidden;background:#fff}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:19px 21px;border:0;background:#fff;color:var(--pine);text-align:left;font-weight:850;font-size:16px}
    .faq-question:hover{background:var(--mist)}
    .faq-question span:last-child{font-size:23px;line-height:1;font-weight:400;transition:transform .2s}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;padding:0 21px 20px;color:var(--muted);font-size:14px;line-height:1.8}
    .faq-item.open .faq-answer{display:block}
    .feedback-section{padding-top:0}
    .feedback-box{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;padding:38px 42px;border:1px solid #b9cbbd;border-radius:var(--radius-lg);background:linear-gradient(120deg,#fff 0%,#edf3e9 100%);box-shadow:var(--shadow)}
    .feedback-box h2{margin:8px 0 9px;color:var(--pine);font-size:29px;font-weight:850}
    .feedback-box p{max-width:680px;margin:0;color:var(--muted);font-size:15px}
    .feedback-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px}
    .site-footer{margin-top:94px;padding:62px 0 22px;background:var(--pine);color:#f6f4ec}
    .footer-top{display:grid;grid-template-columns:1.8fr repeat(3,1fr);gap:38px;padding-bottom:44px}
    .footer-brand{font-size:18px;font-weight:900;line-height:1.4}
    .footer-desc{max-width:410px;margin:15px 0 0;color:#cbdad3;font-size:14px;line-height:1.8}
    .footer-col{display:flex;flex-direction:column;gap:8px}
    .footer-col h3{margin:0 0 6px;color:var(--lime);font-size:14px;font-weight:850}
    .footer-col a{color:#dbe6e1;font-size:14px;transition:color .2s,transform .2s}
    .footer-col a:hover{color:var(--lime);transform:translateX(3px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);color:#c2d0c9;font-size:12px}
    .footer-bottom a:hover{color:var(--lime);text-decoration:underline}
    @media (max-width:1024px){
      .main-nav{display:none}
      .menu-btn{display:block}
      .mobile-nav.open{display:flex;flex-direction:column;gap:5px;padding:0 24px 20px;border-top:1px solid var(--line)}
      .mobile-nav a{padding:11px 12px;border-radius:9px;font-size:14px;font-weight:750;color:#45534e}
      .mobile-nav a.active,.mobile-nav a:hover{background:var(--mist);color:var(--pine)}
      .hero-wrap,.guide-grid,.check-layout,.device-layout,.faq-layout{grid-template-columns:1fr}
      .hero-status{max-width:670px}
      .faq-side{position:static}
      .route-board{grid-template-columns:repeat(3,1fr)}
      .route-item:nth-child(3){border-right:0}
      .route-item:nth-child(-n+3){border-bottom:1px solid var(--line)}
      .route-item:last-child{border-right:1px solid var(--line)}
      .footer-top{grid-template-columns:1.5fr repeat(3,1fr);gap:25px}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--max))}
      .section{padding:66px 0}
      .page-hero{padding:55px 0 61px}
      h1{font-size:35px}
      .section-title{font-size:28px}
      .section-lead,.hero-copy p{font-size:16px}
      .header-inner{min-height:68px}
      .brand{max-width:245px;font-size:13px}
      .header-action{display:none}
      .route-board{grid-template-columns:repeat(2,1fr)}
      .route-item{border-right:1px solid var(--line)!important;border-bottom:1px solid var(--line)}
      .route-item:nth-child(2n){border-right:0!important}
      .route-item:last-child{border-bottom:0}
      .guide-panel{padding:27px}
      .check-list,.support-cards{grid-template-columns:1fr}
      .feedback-box{grid-template-columns:1fr;padding:30px}
      .feedback-actions{justify-content:flex-start}
      .site-footer{margin-top:66px}
      .footer-top{grid-template-columns:repeat(2,1fr)}
      .footer-brand-wrap{grid-column:span 2}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .container{width:min(calc(100% - 26px),var(--max))}
      .brand-mark{width:34px;height:34px;flex-basis:34px}
      .brand-mark:before{left:7px;top:6px}
      .page-hero{padding:45px 0 49px}
      h1{font-size:31px}
      .section-title{font-size:26px}
      .route-board{grid-template-columns:1fr}
      .route-item,.route-item:nth-child(2n){border-right:0!important}
      .route-item:last-child{border-bottom:0}
      .guide-card{padding:18px;gap:13px}
      .guide-index{width:37px;height:37px;flex-basis:37px}
      .feedback-box{padding:25px}
      .feedback-box h2{font-size:25px}
      .footer-top{grid-template-columns:1fr}
      .footer-brand-wrap{grid-column:auto}
      .footer-bottom{font-size:11px}
    }
    @media (prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
    }