/* roulang page: index */
:root{
  --coral:#ef684f;--coral-dark:#d9533d;--graphite:#24302f;--sage:#7d9b82;
  --cream:#f8f0e6;--paper:#fcfaf7;--mint:#edf3ed;--muted:#687370;
  --line:#e6e2db;--white:#fff;--danger:#b84e42;--radius:18px;--radius-sm:12px;
  --shadow:0 12px 32px rgba(51,47,40,.08);--shadow-soft:0 5px 18px rgba(51,47,40,.06);
  --container:1240px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--graphite);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(calc(100% - 48px),var(--container));margin:auto}.section{padding:88px 0}.section-tight{padding:58px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:20px;height:2px;background:var(--coral)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(35px,4.2vw,56px);line-height:1.2;letter-spacing:-.04em}h2{font-size:clamp(27px,3vw,38px);line-height:1.3;letter-spacing:-.03em}h3{font-size:20px;line-height:1.45}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}.section-head p{margin:8px 0 0;color:var(--muted);max-width:620px}.text-link{font-weight:800;color:var(--coral-dark);white-space:nowrap}.text-link:hover{text-decoration:underline}.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:.22s ease}.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}.btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(239,104,79,.25);outline-offset:3px}.btn-primary{background:var(--coral);color:#fff}.btn-primary:hover{background:var(--coral-dark)}.btn-secondary{border-color:var(--graphite);background:transparent}.btn-secondary:hover{background:var(--cream)}.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:8px;background:#fde5df;color:#a84736;font-size:12px;font-weight:800}.badge.green{background:#e4eee5;color:#55735b}.badge.cream{background:var(--cream);color:#715c45}
.site-header{position:sticky;top:0;z-index:50;background:rgba(252,250,247,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}.brand{display:flex;align-items:center;gap:10px;min-width:220px;font-size:17px;font-weight:900;line-height:1.25}.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--coral);position:relative;box-shadow:inset -6px -6px 0 rgba(0,0,0,.08)}.brand-mark:after{content:"";position:absolute;left:13px;top:9px;border-left:11px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent}.nav-links{display:flex;align-items:center;gap:4px}.nav-links a{padding:23px 12px 20px;position:relative;font-size:14px;font-weight:750;color:#4f5b58}.nav-links a:hover,.nav-links a.active{color:var(--coral-dark)}.nav-links a.active:after{content:"";position:absolute;bottom:13px;left:12px;right:12px;height:3px;border-radius:3px;background:var(--coral)}.nav-actions{display:flex;align-items:center;gap:12px}.status-dot{font-size:12px;color:var(--sage);font-weight:750}.status-dot:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--sage);margin-right:5px}.menu-toggle{display:none;border:0;background:transparent;font-size:25px;color:var(--graphite)}
.hero{padding:64px 0 52px;overflow:hidden}.hero-shell{position:relative;display:grid;grid-template-columns:1.04fr .96fr;min-height:510px;border-radius:28px;background:var(--cream);overflow:hidden}.hero-copy{padding:72px 7% 55px;position:relative;z-index:2}.hero-copy h1{max-width:680px;margin:16px 0 20px}.hero-copy p{max-width:570px;color:#52605c;font-size:17px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:31px}.mini-tag{padding:7px 11px;border:1px solid #e5d9cc;border-radius:9px;background:rgba(255,255,255,.58);font-size:13px;font-weight:700;color:#5d5d55}.hero-art{position:relative;min-height:430px;background:#f2dfcf}.hero-orb{position:absolute;width:330px;height:330px;border-radius:50%;background:#f8cdbd;right:-55px;top:-58px}.hero-square{position:absolute;width:130px;height:130px;background:#dce8dc;border-radius:28px;transform:rotate(15deg);bottom:42px;left:4%}.app-board{position:absolute;z-index:2;right:12%;top:49px;width:325px;padding:13px;border:7px solid var(--graphite);border-radius:33px;background:#fff;box-shadow:0 26px 40px rgba(57,45,35,.2)}.app-top{display:flex;justify-content:space-between;align-items:center;padding:3px 3px 12px;font-size:11px;font-weight:800}.app-banner{padding:19px;border-radius:18px;background:var(--coral);color:#fff}.app-banner small{opacity:.82}.app-banner strong{display:block;font-size:20px;line-height:1.3;margin-top:5px}.app-row{display:flex;gap:9px;margin:15px 0}.app-chip{flex:1;border-radius:11px;background:var(--cream);padding:10px;font-size:10px;font-weight:800}.app-chip i{display:block;width:16px;height:16px;border-radius:5px;background:var(--sage);margin-bottom:7px}.app-feed{display:grid;gap:8px}.feed-line{display:flex;gap:9px;padding:8px;border-radius:11px;background:#f7f6f3}.feed-line b{width:38px;height:38px;border-radius:9px;background:#d7e5d7}.feed-line span{display:block;flex:1;padding-top:4px}.feed-line span:before,.feed-line span:after{content:"";display:block;height:6px;border-radius:4px;background:#b7bdb9;margin-bottom:7px}.feed-line span:after{width:66%;background:#d8ddda}
.quick-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1.05fr;gap:14px}.quick-item{min-height:130px;padding:23px;border:1px solid var(--line);background:#fff;border-radius:var(--radius);transition:.2s}.quick-item:hover{border-color:#efb4a7;box-shadow:var(--shadow-soft);transform:translateY(-3px)}.quick-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:var(--cream);color:var(--coral-dark);font-size:18px;font-weight:900}.quick-item h3{margin:13px 0 3px;font-size:16px}.quick-item p{margin:0;font-size:13px;color:var(--muted);line-height:1.55}.quick-arrow{float:right;color:var(--coral);font-size:20px}
.status-bar{display:grid;grid-template-columns:1.3fr repeat(3,1fr);border:1px solid #d9e3da;border-radius:var(--radius);overflow:hidden;background:#f5f9f4}.status-main{padding:22px 27px;background:#e8f1e8}.status-main strong{display:block;font-size:17px}.status-main span{color:#54705a;font-size:13px}.status-stat{padding:21px 22px;border-left:1px solid #d9e3da}.status-stat b{display:block;font-size:15px}.status-stat span{font-size:13px;color:var(--muted)}
.news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}.feature-post{display:flex;flex-direction:column;min-height:390px;padding:30px;border-radius:22px;background:var(--graphite);color:#fff;position:relative;overflow:hidden}.feature-post:after{content:"";position:absolute;width:230px;height:230px;border-radius:50%;right:-60px;bottom:-75px;background:rgba(239,104,79,.7)}.feature-post .badge{width:max-content;position:relative;z-index:1}.feature-post h3{position:relative;z-index:1;font-size:28px;margin:23px 0 12px;max-width:460px}.feature-post p{position:relative;z-index:1;color:#d6dcda;max-width:470px}.post-meta{margin-top:auto;position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;color:#c2cbc7;font-size:13px}.post-list{display:grid;gap:12px}.post-item{display:grid;grid-template-columns:70px 1fr;gap:17px;padding:17px;border:1px solid var(--line);border-radius:15px;background:#fff;transition:.2s}.post-item:hover{box-shadow:var(--shadow-soft);border-color:#eeb3a7}.post-date{font-size:12px;color:var(--muted);border-right:1px solid var(--line)}.post-date b{display:block;font-size:22px;color:var(--coral-dark);line-height:1.2}.post-item h3{font-size:16px;margin:2px 0 4px}.post-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.empty{padding:55px 25px;text-align:center;border:1px dashed #d8d1c7;border-radius:18px;background:#fff;color:var(--muted)}
.topic-scroll{display:grid;grid-template-columns:1.35fr .85fr .85fr;gap:16px}.topic{position:relative;min-height:220px;padding:25px;border-radius:20px;overflow:hidden;color:#fff;transition:.2s}.topic:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.topic h3{font-size:23px;margin:12px 0 8px}.topic p{margin:0;max-width:250px;font-size:14px;line-height:1.6;opacity:.86}.topic:after{content:"";position:absolute;border-radius:50%;width:150px;height:150px;right:-36px;bottom:-48px;background:rgba(255,255,255,.18)}.topic-one{background:#40594f}.topic-two{background:#d16b55}.topic-three{background:#9b8369}.topic-four{display:none;background:#748f79}
.preview-area{background:var(--cream)}.screens{display:flex;align-items:end;justify-content:center;gap:18px;padding-top:18px}.screen-card{width:225px;padding:10px;border:5px solid var(--graphite);border-radius:26px;background:#fff;box-shadow:var(--shadow)}.screen-card:nth-child(1),.screen-card:nth-child(3){transform:translateY(26px) scale(.9);opacity:.88}.screen-head{height:16px;margin:4px 5px 13px;border-radius:5px;background:#e9e8e4}.screen-cover{height:105px;border-radius:13px;background:#f3b7a8}.screen-card:nth-child(2) .screen-cover{background:#a9c0ab}.screen-card:nth-child(3) .screen-cover{background:#d8c19f}.screen-lines{padding:13px 3px 3px}.screen-lines i{display:block;height:8px;margin:8px 0;border-radius:5px;background:#e5e4df}.screen-lines i:nth-child(2){width:70%}.screen-caption{text-align:center;margin-top:18px;font-size:14px;font-weight:800}
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.steps:before{content:"";position:absolute;top:23px;left:12%;right:12%;border-top:2px dashed #d9b8a6}.step{position:relative;z-index:1}.step-no{display:grid;place-items:center;width:48px;height:48px;margin-bottom:18px;border-radius:50%;background:#fff;border:2px solid var(--coral);color:var(--coral-dark);font-weight:900}.step h3{font-size:18px;margin:0 0 7px}.step p{margin:0;color:var(--muted);font-size:14px}.step-action{margin-top:30px}
.update-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:22px}.version-card{padding:31px;border-radius:20px;background:var(--mint);border:1px solid #d9e6da}.version-card h3{font-size:27px;margin:16px 0 7px}.version-card p{color:var(--muted)}.version-details{display:flex;gap:20px;margin:22px 0}.version-details span{font-size:13px;color:var(--muted)}.version-details b{display:block;color:var(--graphite);font-size:15px}.timeline{border-left:2px solid #dfded8;margin:4px 0 0 10px;padding-left:28px}.timeline-item{position:relative;padding:0 0 23px}.timeline-item:before{content:"";position:absolute;left:-35px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--coral);border:3px solid var(--paper)}.timeline-item time{font-size:12px;color:var(--muted)}.timeline-item h3{font-size:16px;margin:2px 0}.timeline-item p{font-size:14px;color:var(--muted);margin:0}
.activity-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.activity-main{padding:34px;border-radius:21px;background:#f3ded3;position:relative;overflow:hidden}.activity-main:after{content:"";position:absolute;width:190px;height:190px;border:24px solid rgba(239,104,79,.18);border-radius:50%;right:-45px;bottom:-65px}.activity-main h2{max-width:540px;margin:15px 0}.activity-main p{max-width:530px;color:#665a54}.activity-list{display:grid;gap:12px}.activity-mini{padding:20px;border:1px solid var(--line);border-radius:16px;background:#fff}.activity-mini h3{font-size:16px;margin:9px 0 5px}.activity-mini p{font-size:13px;color:var(--muted);margin:0}
.member-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}.rights-list{border-top:1px solid var(--line)}.right-row{display:grid;grid-template-columns:40px 1fr auto;gap:14px;align-items:center;padding:17px 4px;border-bottom:1px solid var(--line)}.right-row i{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--cream);font-style:normal;color:var(--coral-dark)}.right-row b{display:block}.right-row span{font-size:13px;color:var(--muted)}.support-card{padding:30px;border-radius:20px;background:var(--graphite);color:#fff}.support-card p{color:#d0d8d3}.support-card .support-time{padding:13px;margin:20px 0;border-radius:11px;background:rgba(255,255,255,.1);font-size:14px}.support-card .btn-secondary{border-color:#b7c5bd;color:#fff}
.security{background:var(--graphite);color:#fff}.security .section-head p{color:#c5cfca}.security-grid{display:grid;grid-template-columns:repeat(3,1fr) .9fr;gap:14px}.security-item{padding:20px;border-top:2px solid var(--coral);background:rgba(255,255,255,.06);border-radius:12px}.security-item b{display:block;margin-bottom:6px}.security-item p{font-size:13px;line-height:1.65;color:#c5cfca;margin:0}.security-note{padding:20px;color:#d9e5dc;font-size:14px}.security-note a{color:#ffae9d;font-weight:800}
.help-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px}.faq-list{border-top:1px solid var(--line)}.faq{border-bottom:1px solid var(--line)}.faq button{width:100%;display:flex;align-items:center;gap:16px;padding:20px 0;border:0;background:transparent;text-align:left;color:var(--graphite);font-weight:800}.faq-num{color:var(--coral);font-size:13px}.faq button em{margin-left:auto;font-style:normal;font-size:20px;transition:.2s}.faq-answer{display:none;padding:0 36px 19px;color:var(--muted);font-size:14px}.faq.open .faq-answer{display:block}.faq.open button em{transform:rotate(45deg)}.feedback-card{padding:28px;border:1px solid #e2ddd5;background:var(--cream);border-radius:20px}.feedback-card h3{font-size:24px}.feedback-card p{font-size:14px;color:var(--muted)}.feedback-card label{display:block;margin:14px 0 6px;font-size:13px;font-weight:800}.feedback-card select,.feedback-card textarea{width:100%;padding:11px 12px;border:1px solid #d9d4cb;border-radius:10px;background:#fff;color:var(--graphite)}.feedback-card textarea{height:86px;resize:vertical}.form-tip{font-size:12px!important;line-height:1.55;margin-top:12px!important}
.rules{background:#f1f4ef}.rule-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px}.rule-grid h2{margin-bottom:13px}.rule-grid p{color:var(--muted)}.rule-links{display:grid;gap:0;border-top:1px solid #d8dfd7}.rule-links a{padding:15px 0;border-bottom:1px solid #d8dfd7;font-weight:750}.rule-links a:hover{color:var(--coral-dark)}.rule-links a span{float:right;color:var(--coral)}
.download-cta{padding:34px 42px;border-radius:24px;background:var(--coral);color:#fff;display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:30px}.download-cta h2{margin:5px 0;font-size:30px}.download-cta p{margin:0;color:#fff0eb}.qr{width:78px;height:78px;padding:7px;background:#fff;border-radius:8px;display:grid;grid-template-columns:repeat(5,1fr);gap:3px}.qr i{background:var(--graphite)}.qr i:nth-child(3n){background:#fff}.download-cta small{display:block;color:#ffe5dd;font-size:12px;margin-top:5px}.download-cta .btn{background:#fff;color:var(--coral-dark)}
.footer{background:var(--graphite);color:#f2eee8;padding:55px 0 23px}.footer-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:45px;padding-bottom:38px}.footer .brand{color:#fff}.footer p{color:#bec9c3;font-size:14px;max-width:410px}.footer h3{font-size:14px;color:#fff;margin:0 0 13px}.footer-links{display:grid;gap:8px}.footer-links a{color:#bec9c3;font-size:14px}.footer-links a:hover{color:#ffaf9f}.footer-bottom{padding-top:21px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:18px;color:#aab6b0;font-size:12px}.footer-bottom span:last-child{max-width:550px}
@media(max-width:1024px){.nav-links a{padding-left:8px;padding-right:8px}.brand{min-width:170px;font-size:15px}.status-dot{display:none}.hero-shell{grid-template-columns:1fr .78fr}.app-board{right:7%}.quick-grid{grid-template-columns:repeat(2,1fr)}.security-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}.nav-wrap{height:68px}.nav-links,.nav-actions .btn{display:none}.menu-toggle{display:block}.nav-actions{margin-left:auto}.hero{padding:28px 0}.hero-shell{display:block}.hero-copy{padding:43px 26px 26px}.hero-copy p{font-size:16px}.hero-art{min-height:315px}.app-board{width:255px;top:24px;right:calc(50% - 128px);transform:none}.hero-orb{width:240px;height:240px}.section{padding:60px 0}.section-tight{padding:42px 0}.section-head{display:block;margin-bottom:24px}.section-head .text-link{display:inline-block;margin-top:13px}.status-bar,.news-layout,.update-grid,.activity-layout,.member-grid,.help-grid,.rule-grid{grid-template-columns:1fr}.status-stat{border-left:0;border-top:1px solid #d9e3da}.topic-scroll{grid-template-columns:1fr 1fr}.topic-one{grid-column:span 2}.topic-four{display:block}.screens{gap:8px}.screen-card{width:31%}.steps{grid-template-columns:1fr 1fr}.steps:before{display:none}.security-grid{grid-template-columns:1fr}.download-cta{grid-template-columns:1fr auto;padding:29px}.download-cta .btn{grid-column:span 2}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:span 2}}
@media(max-width:520px){h1{font-size:32px}.hero-actions,.hero-actions .btn{width:100%}.quick-grid,.topic-scroll,.steps{grid-template-columns:1fr}.topic-one{grid-column:auto}.post-item{grid-template-columns:54px 1fr;gap:11px;padding:14px}.post-date b{font-size:18px}.feature-post{padding:23px;min-height:320px}.feature-post h3{font-size:23px}.screens{align-items:end}.screen-card{width:33%;padding:6px;border-width:3px;border-radius:18px}.screen-cover{height:73px}.screen-lines{padding:7px 1px}.screen-lines i{height:5px;margin:5px}.screen-caption{font-size:12px}.download-cta{display:block;padding:26px}.download-cta h2{font-size:26px}.download-cta .qr{margin:20px 0 8px}.download-cta .btn{width:100%;margin-top:17px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin:6px 0}.right-row{grid-template-columns:35px 1fr}.right-row>a{grid-column:2}.activity-main{padding:25px}.version-card{padding:25px}}

/* roulang page: article */
:root{
  --coral:#ef684f;--coral-dark:#d9533d;--graphite:#24302f;--sage:#7d9b82;
  --cream:#f8f0e6;--paper:#fcfaf7;--mint:#edf3ed;--muted:#687370;
  --line:#e6e2db;--white:#fff;--danger:#b84e42;--radius:18px;--radius-sm:12px;
  --shadow:0 12px 32px rgba(51,47,40,.08);--shadow-soft:0 5px 18px rgba(51,47,40,.06);
  --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--graphite);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--container));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(252,250,247,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{display:flex;align-items:center;gap:10px;min-width:220px;font-size:17px;font-weight:900;line-height:1.25}
.brand-mark{flex:0 0 34px;width:34px;height:34px;border-radius:11px;background:var(--coral);position:relative;box-shadow:inset -6px -6px 0 rgba(0,0,0,.08)}
.brand-mark:after{content:"";position:absolute;left:13px;top:9px;border-left:11px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:23px 12px 20px;position:relative;font-size:14px;font-weight:750;color:#4f5b58;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--coral-dark)}
.nav-links a.active:after{content:"";position:absolute;bottom:13px;left:12px;right:12px;height:3px;border-radius:3px;background:var(--coral)}
.nav-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{display:none;border:0;background:transparent;font-size:25px;color:var(--graphite)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:10px 19px;border:1px solid transparent;border-radius:12px;font-weight:800;transition:.22s ease}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
.btn:focus,a:focus,input:focus,textarea:focus,select:focus,button:focus{outline:3px solid rgba(239,104,79,.25);outline-offset:3px}
.btn-primary{background:var(--coral);color:#fff}
.btn-primary:hover{background:var(--coral-dark);color:#fff}
.btn-secondary{border-color:var(--graphite);background:transparent;color:var(--graphite)}
.btn-secondary:hover{background:var(--cream);color:var(--graphite)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:8px;background:#fde5df;color:#a84736;font-size:12px;font-weight:800}
.badge.green{background:#e4eee5;color:#55735b}
.badge.cream{background:var(--cream);color:#715c45}
.progress-line{position:fixed;top:0;left:0;width:100%;height:3px;z-index:90;background:transparent}
.progress-line span{display:block;width:0;height:100%;background:var(--coral);transition:width .1s linear}
.article-main{padding-bottom:88px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:30px 0 23px;color:#808986;font-size:13px}
.breadcrumb a:hover{color:var(--coral-dark);text-decoration:underline}
.breadcrumb strong{font-weight:700;color:var(--graphite);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:500px}
.article-intro{padding:36px 0 56px;border-bottom:1px solid var(--line)}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 250px;justify-content:space-between;gap:58px}
.article-meta{display:flex;flex-wrap:wrap;gap:11px 19px;align-items:center;color:var(--muted);font-size:14px;margin-top:17px}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-title{margin:15px 0 0;max-width:850px;font-size:clamp(31px,4vw,50px);line-height:1.28;letter-spacing:-.035em;font-weight:850}
.article-summary{margin:27px 0 0;padding:22px 24px;border-left:4px solid var(--coral);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:var(--cream);color:#4d5855;font-size:16px;line-height:1.9}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:24px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.info-cell{padding:14px 16px;background:var(--white)}
.info-cell small{display:block;color:var(--muted);font-size:12px;line-height:1.4}
.info-cell strong{display:block;margin-top:4px;font-size:14px;line-height:1.5}
.cover-visual{position:relative;margin:39px 0 38px;min-height:280px;border-radius:22px;background:linear-gradient(135deg,#f3ddcd 0%,#f8f0e6 48%,#e5eee5 100%);overflow:hidden;border:1px solid #eadcd1}
.cover-visual:before{content:"";position:absolute;width:280px;height:280px;right:6%;top:-70px;border-radius:48px;background:rgba(239,104,79,.17);transform:rotate(24deg)}
.cover-visual:after{content:"";position:absolute;width:160px;height:160px;left:8%;bottom:-68px;border-radius:50%;background:rgba(125,155,130,.22)}
.cover-inner{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;height:100%;min-height:280px;padding:36px}
.cover-copy{max-width:500px}
.cover-copy b{display:block;font-size:12px;letter-spacing:.1em;color:var(--coral-dark)}
.cover-copy strong{display:block;margin-top:8px;font-size:25px;line-height:1.4}
.cover-window{width:210px;padding:14px;border-radius:18px;background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow-soft)}
.cover-window i{display:block;width:35px;height:8px;border-radius:8px;background:var(--coral);margin-bottom:15px}
.cover-window span{display:block;height:9px;margin:8px 0;border-radius:8px;background:#e6e1da}
.cover-window span:nth-child(3){width:78%;background:#ccdbce}
.cover-window span:nth-child(4){width:58%}
.article-content{font-size:16px;line-height:1.95;color:#34413e}
.article-content>*:first-child{margin-top:0}
.article-content h2{margin:48px 0 19px;color:var(--graphite);font-size:28px;line-height:1.4;font-weight:850;letter-spacing:-.02em}
.article-content h3{margin:33px 0 13px;color:var(--graphite);font-size:21px;line-height:1.5;font-weight:800}
.article-content p{margin:0 0 20px}
.article-content ul,.article-content ol{padding-left:24px;margin:0 0 22px}
.article-content li{margin:8px 0;padding-left:4px}
.article-content a{color:var(--coral-dark);font-weight:700;text-decoration:underline;text-underline-offset:3px}
.article-content blockquote{margin:28px 0;padding:17px 21px;border-radius:0 12px 12px 0;border-left:4px solid var(--sage);background:var(--mint);color:#465e4c}
.article-content img{margin:26px auto;border-radius:15px;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.article-content table{width:100%;margin:25px 0;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;font-size:14px}
.article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);text-align:left;vertical-align:top}
.article-content th{background:var(--cream);color:var(--graphite)}
.toc{position:sticky;top:106px;align-self:start;padding:19px;border:1px solid var(--line);border-radius:16px;background:#fff}
.toc-title{margin:0 0 11px;font-size:14px;font-weight:850}
.toc-list{display:grid;gap:4px;padding:0;margin:0;list-style:none}
.toc-list a{display:block;padding:6px 8px;border-radius:8px;color:var(--muted);font-size:13px;line-height:1.5;transition:.2s}
.toc-list a:hover,.toc-list a.current{color:var(--coral-dark);background:var(--cream)}
.toc-list .toc-h3{padding-left:19px;font-size:12px}
.article-tip{display:flex;gap:18px;align-items:center;margin:43px 0;padding:24px 25px;border:1px solid #dce8dc;border-radius:18px;background:var(--mint)}
.tip-icon{display:grid;place-items:center;flex:0 0 46px;width:46px;height:46px;border-radius:14px;background:var(--sage);color:#fff;font-size:21px}
.article-tip h3{margin:0;font-size:17px}
.article-tip p{margin:3px 0 0;color:#5c6b61;font-size:14px;line-height:1.65}
.article-tip .btn{margin-left:auto;white-space:nowrap}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:68px 0 21px}
.section-heading h2{margin:0;font-size:28px;font-weight:850}
.section-heading p{margin:0;color:var(--muted);font-size:14px}
.related-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:15px}
.related-card{display:flex;flex-direction:column;min-height:205px;padding:21px;border:1px solid var(--line);border-radius:17px;background:#fff;transition:.22s}
.related-card:hover{border-color:#efb4a7;box-shadow:var(--shadow-soft);transform:translateY(-3px)}
.related-card:first-child{background:var(--graphite);border-color:var(--graphite);color:#fff}
.related-card h3{margin:14px 0 9px;font-size:17px;line-height:1.5}
.related-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.related-card:first-child p{color:#ced8d3}
.related-card footer{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:18px;color:var(--muted);font-size:12px}
.related-card:first-child footer{color:#c9d0cd}
.related-arrow{font-size:20px;color:var(--coral)}
.feedback-box{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:53px;padding:27px 30px;border-radius:20px;background:var(--cream)}
.feedback-box h2{margin:0;font-size:21px;font-weight:850}
.feedback-box p{margin:4px 0 0;color:var(--muted);font-size:14px}
.feedback-actions{display:flex;flex-wrap:wrap;gap:10px}
.feedback-actions button{padding:8px 14px;border:1px solid #d8cfc4;border-radius:10px;background:#fff;color:var(--graphite);font-weight:750;transition:.2s}
.feedback-actions button:hover,.feedback-actions button.selected{border-color:var(--coral);background:#fde5df;color:var(--coral-dark)}
.not-found{padding:75px 25px;text-align:center;border:1px dashed #d9d2c9;border-radius:20px;background:#fff}
.not-found i{display:grid;place-items:center;width:56px;height:56px;margin:0 auto 18px;border-radius:17px;background:var(--cream);color:var(--coral);font-style:normal;font-size:25px}
.not-found h1{margin:0;font-size:29px}
.not-found p{margin:9px 0 22px;color:var(--muted)}
.footer{margin-top:0;padding:62px 0 24px;background:var(--graphite);color:#f2eee8}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:55px}
.footer .brand{color:#fff}
.footer p{margin:17px 0 0;max-width:350px;color:#bfc8c4;font-size:14px;line-height:1.75}
.footer h3{margin:0 0 15px;font-size:15px;color:#fff}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#bfc8c4;font-size:14px;transition:.2s}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:27px;margin-top:47px;border-top:1px solid rgba(255,255,255,.14);color:#aeb8b4;font-size:12px}
@media(max-width:1024px){
  .nav-links{gap:0}.nav-links a{padding-left:8px;padding-right:8px}
  .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:32px}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .related-card:first-child{grid-column:span 2}
}
@media(max-width:768px){
  .container{width:min(calc(100% - 32px),var(--container))}
  .nav-wrap{height:68px}
  .brand{min-width:0;font-size:15px}.brand-mark{width:31px;height:31px}.brand-mark:after{left:12px;top:8px}
  .menu-toggle{display:block}
  .nav-actions .btn{display:none}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav-links.open{display:grid}
  .nav-links a{padding:10px 9px}
  .nav-links a.active:after{bottom:5px}
  .article-intro{padding:23px 0 40px}.breadcrumb{padding:21px 0 14px}
  .article-layout{display:block}.toc{position:relative;top:auto;margin:26px 0 0}
  .toc-list{max-height:160px;overflow:auto}
  .cover-visual{min-height:235px;margin:30px 0}
  .cover-inner{min-height:235px;padding:25px}.cover-window{display:none}
  .article-content h2{font-size:25px;margin-top:39px}
  .article-tip{align-items:flex-start;flex-wrap:wrap}.article-tip .btn{margin-left:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:35px}.footer-grid>div:first-child{grid-column:span 2}
}
@media(max-width:520px){
  body{font-size:15px}.container{width:min(calc(100% - 28px),var(--container))}
  .brand{font-size:13px}.brand-mark{flex-basis:29px;width:29px;height:29px;border-radius:9px}.brand-mark:after{left:11px;top:7px;border-left-width:9px;border-top-width:7px;border-bottom-width:7px}
  .article-title{font-size:30px}.article-summary{padding:18px;font-size:15px}
  .info-grid{grid-template-columns:1fr 1fr}.info-cell{padding:12px}
  .cover-copy strong{font-size:20px}
  .article-content{font-size:15px}.article-content h2{font-size:23px}.article-content h3{font-size:19px}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap}
  .article-tip{padding:20px}.article-tip .btn{width:100%;margin-left:0}
  .section-heading{display:block;margin-top:49px}.section-heading p{margin-top:5px}
  .related-grid{grid-template-columns:1fr}.related-card:first-child{grid-column:auto}
  .feedback-box{display:block;padding:22px}.feedback-actions{margin-top:17px}
  .footer{padding-top:48px}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-grid>div:first-child{grid-column:auto}
  .footer-bottom{display:block;margin-top:33px;padding-top:19px}.footer-bottom span{display:block;margin:6px 0}
}

/* roulang page: category1 */
:root{
      --coral:#ef684f;--coral-dark:#d9533d;--graphite:#24302f;--sage:#7d9b82;
      --cream:#f8f0e6;--paper:#fcfaf7;--mint:#edf3ed;--muted:#687370;
      --line:#e6e2db;--white:#fff;--danger:#b84e42;--radius:18px;--radius-sm:12px;
      --shadow:0 12px 32px rgba(51,47,40,.08);--shadow-soft:0 5px 18px rgba(51,47,40,.06);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--graphite);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,4vw,52px);line-height:1.24;letter-spacing:-.035em;font-weight:900}
    h2{font-size:clamp(27px,3vw,36px);line-height:1.35;letter-spacing:-.025em;font-weight:900}
    h3{font-weight:850;line-height:1.45}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .section{padding:84px 0}
    .section-soft{background:var(--cream)}
    .section-mint{background:var(--mint)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:850;letter-spacing:.08em}
    .eyebrow:before{content:"";width:21px;height:2px;background:var(--coral)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}
    .section-head p{max-width:640px;margin:8px 0 0;color:var(--muted)}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:48px;padding:11px 20px;border:1px solid transparent;border-radius:12px;font-weight:850;line-height:1.3;transition:transform .22s ease,background .22s ease,box-shadow .22s ease,border-color .22s ease}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
    .btn:active{transform:translateY(0)}
    .btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(239,104,79,.25);outline-offset:3px}
    .btn-primary{background:var(--coral);color:#fff}
    .btn-primary:hover{background:var(--coral-dark)}
    .btn-secondary{background:#fff;border-color:var(--graphite)}
    .btn-secondary:hover{background:var(--cream)}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:8px;background:#fde5df;color:#a84736;font-size:12px;font-weight:850;line-height:1.3}
    .badge.green{background:#e4eee5;color:#55735b}
    .badge.cream{background:var(--cream);color:#715c45}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(252,250,247,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:flex;align-items:center;gap:10px;min-width:220px;font-size:17px;font-weight:900;line-height:1.25}
    .brand-mark{position:relative;width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:var(--coral);box-shadow:inset -6px -6px 0 rgba(0,0,0,.08)}
    .brand-mark:after{content:"";position:absolute;left:13px;top:9px;border-left:11px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{position:relative;padding:23px 12px 20px;color:#4f5b58;font-size:14px;font-weight:750;white-space:nowrap}
    .nav-links a:hover,.nav-links a.active{color:var(--coral-dark)}
    .nav-links a.active:after{content:"";position:absolute;left:12px;right:12px;bottom:13px;height:3px;border-radius:3px;background:var(--coral)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--graphite);font-size:25px}
    .breadcrumb-wrap{padding:28px 0 0}
    .breadcrumb{display:flex;align-items:center;gap:10px;margin:0;padding:0;background:transparent;color:var(--muted);font-size:14px}
    .breadcrumb li{list-style:none}
    .breadcrumb li+li:before{content:"/";margin-right:10px;color:#a9b0ad}
    .breadcrumb .current{color:var(--graphite);font-weight:750}
    .page-intro{padding:38px 0 64px}
    .intro-shell{position:relative;overflow:hidden;padding:54px 6%;border:1px solid #eddfd2;border-radius:28px;background:var(--cream)}
    .intro-shell:before{content:"";position:absolute;width:270px;height:270px;right:-82px;top:-108px;border-radius:50%;background:#f5cbbd}
    .intro-shell:after{content:"";position:absolute;width:108px;height:108px;right:15%;bottom:-42px;border-radius:24px;background:#dce9dd;transform:rotate(17deg)}
    .intro-copy{position:relative;z-index:1;max-width:790px}
    .intro-copy h1{margin:13px 0 17px}
    .intro-copy p{max-width:720px;margin:0;color:#55615e;font-size:17px}
    .intro-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
    .meta-pill{padding:7px 11px;border:1px solid #ead8c9;border-radius:9px;background:rgba(255,255,255,.66);color:#5e655f;font-size:13px;font-weight:750}
    .info-strip{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:1px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--line);box-shadow:var(--shadow-soft)}
    .strip-cell{padding:23px 26px;background:#fff}
    .strip-cell strong{display:block;margin-bottom:4px;font-size:17px}
    .strip-cell span{display:block;color:var(--muted);font-size:14px;line-height:1.65}
    .strip-icon{display:inline-grid;place-items:center;width:34px;height:34px;margin-bottom:12px;border-radius:10px;background:#fde6df;color:var(--coral-dark);font-weight:900}
    .feature-card{display:grid;grid-template-columns:42% 58%;overflow:hidden;border-radius:22px;background:var(--graphite);color:#fff;box-shadow:var(--shadow)}
    .feature-visual{position:relative;min-height:330px;overflow:hidden;background:#d9e5db}
    .feature-visual:before{content:"";position:absolute;width:240px;height:240px;left:50%;top:45px;border-radius:44px;background:#f4c7b7;transform:translateX(-50%) rotate(12deg)}
    .feature-visual:after{content:"";position:absolute;width:164px;height:208px;left:50%;top:70px;border:8px solid var(--graphite);border-radius:27px;background:#fff;transform:translateX(-50%) rotate(-7deg);box-shadow:0 18px 24px rgba(36,48,47,.22)}
    .feature-screen{position:absolute;z-index:2;left:50%;top:101px;width:120px;transform:translateX(-50%) rotate(-7deg)}
    .feature-screen b{display:block;width:55px;height:8px;margin:0 auto 13px;border-radius:4px;background:#dfe9df}
    .feature-screen span{display:block;height:12px;margin:8px 12px;border-radius:5px;background:#f5ece3}
    .feature-screen span:nth-child(3){width:66%;background:#f3b8a7}
    .feature-copy{display:flex;flex-direction:column;align-items:flex-start;padding:42px 48px}
    .feature-copy h2{margin:17px 0 14px;font-size:32px}
    .feature-copy p{max-width:600px;margin:0;color:#d4dcda}
    .feature-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:25px 0;color:#bdc8c4;font-size:13px}
    .feature-copy .btn{margin-top:auto}
    .news-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.78fr);gap:26px;align-items:start}
    .news-stack{display:grid;gap:15px}
    .news-card{display:grid;grid-template-columns:155px 1fr;gap:21px;padding:17px;border:1px solid var(--line);border-radius:17px;background:#fff;transition:.22s ease}
    .news-card:hover{transform:translateY(-3px);border-color:#edb1a4;box-shadow:var(--shadow-soft)}
    .news-art{position:relative;min-height:142px;overflow:hidden;border-radius:12px;background:var(--cream)}
    .news-art.one:after,.news-art.two:after,.news-art.three:after,.news-art.four:after{content:"";position:absolute;border-radius:24px}
    .news-art.one:after{width:90px;height:90px;left:31px;top:25px;background:#f1b6a5;transform:rotate(18deg)}
    .news-art.two{background:#e5eee5}
    .news-art.two:after{width:75px;height:105px;left:39px;top:20px;border:7px solid #7d9b82;background:#fff}
    .news-art.three{background:#f6eadc}
    .news-art.three:after{width:100px;height:64px;left:26px;top:39px;background:#ef684f;box-shadow:18px -16px 0 #d6e2d6}
    .news-art.four{background:#ecebe5}
    .news-art.four:after{width:90px;height:90px;left:33px;top:24px;border-radius:50%;border:18px solid #f1c3b3}
    .news-content{display:flex;flex-direction:column;align-items:flex-start;min-width:0}
    .news-content h3{margin:10px 0 6px;font-size:19px}
    .news-content h3 a:hover{color:var(--coral-dark)}
    .news-content p{display:-webkit-box;overflow:hidden;margin:0;color:var(--muted);font-size:14px;line-height:1.7;-webkit-line-clamp:2;-webkit-box-orient:vertical}
    .news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;margin-top:auto;padding-top:12px;color:#7a8581;font-size:13px}
    .sidebar-panel{padding:27px;border:1px solid var(--line);border-radius:18px;background:#fff}
    .sidebar-panel h3{margin:0 0 15px;font-size:20px}
    .rank-list{display:grid;gap:3px}
    .rank-item{display:grid;grid-template-columns:29px 1fr;gap:10px;padding:13px 0;border-bottom:1px solid var(--line)}
    .rank-item:last-child{border-bottom:0}
    .rank-no{display:grid;place-items:center;width:27px;height:27px;border-radius:8px;background:var(--cream);color:var(--coral-dark);font-size:12px;font-weight:900}
    .rank-item a{font-size:14px;font-weight:750;line-height:1.55}
    .rank-item a:hover{color:var(--coral-dark)}
    .notice-list{position:relative;margin:0;padding:0 0 0 19px;border-left:2px solid #d8e4d8}
    .notice-list:before{content:"";position:absolute;left:-4px;top:0;width:6px;height:6px;border-radius:50%;background:var(--sage)}
    .notice-item{position:relative;display:grid;grid-template-columns:115px 1fr;gap:20px;padding:0 0 28px 20px}
    .notice-item:last-child{padding-bottom:0}
    .notice-item:before{content:"";position:absolute;left:-25px;top:8px;width:10px;height:10px;border:2px solid var(--sage);border-radius:50%;background:var(--paper)}
    .notice-date{color:#6e8172;font-size:14px;font-weight:850}
    .notice-item h3{margin:0 0 5px;font-size:18px}
    .notice-item p{margin:0;color:var(--muted);font-size:14px}
    .notice-item a:hover{color:var(--coral-dark)}
    .topic-grid{display:grid;grid-template-columns:1.25fr .85fr .85fr;gap:18px}
    .topic-card{position:relative;min-height:225px;overflow:hidden;padding:28px;border:1px solid var(--line);border-radius:18px;background:#fff;transition:.22s ease}
    .topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-soft)}
    .topic-card h3{position:relative;z-index:1;margin:52px 0 8px;font-size:22px}
    .topic-card p{position:relative;z-index:1;max-width:300px;margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .topic-card:after{content:"";position:absolute;right:-18px;top:-20px;width:120px;height:120px;border-radius:35px;background:#fde1d8;transform:rotate(19deg)}
    .topic-card.mint:after{background:#dce9dd;border-radius:50%}
    .topic-card.dark{border-color:var(--graphite);background:var(--graphite);color:#fff}
    .topic-card.dark p{color:#d0dad6}
    .topic-card.dark:after{background:#ef684f}
    .service-box{display:grid;grid-template-columns:1.2fr .8fr;gap:35px;align-items:center;padding:42px 48px;border-radius:22px;background:#263433;color:#fff}
    .service-box h2{margin:12px 0}
    .service-box p{max-width:680px;margin:0;color:#d2dcda}
    .service-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:12px}
    .service-box .btn-secondary{border-color:#b8c7c2;background:transparent;color:#fff}
    .service-box .btn-secondary:hover{background:rgba(255,255,255,.1)}
    .footer{padding:68px 0 24px;background:var(--graphite);color:#f6f1ea}
    .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:50px;padding-bottom:47px}
    .footer .brand{color:#fff}
    .footer p{max-width:380px;margin:18px 0 0;color:#bfc9c5;font-size:14px}
    .footer h3{margin:2px 0 14px;color:#fff;font-size:16px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c4ceca;font-size:14px;transition:color .2s}
    .footer-links a:hover{color:#ffab98}
    .footer-bottom{display:flex;justify-content:space-between;gap:28px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);color:#aebbb6;font-size:13px}
    @media (max-width:1024px){
      .nav-links{gap:0}
      .nav-links a{padding-left:8px;padding-right:8px}
      .brand{min-width:190px;font-size:15px}
      .feature-copy{padding:35px}
      .news-layout{grid-template-columns:1fr}
      .sidebar-panel{display:grid;grid-template-columns:160px 1fr;gap:20px;align-items:start}
      .sidebar-panel h3{margin:0}
      .rank-list{grid-template-columns:1fr 1fr;column-gap:18px}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .section{padding:62px 0}
      .nav-wrap{height:68px}
      .nav-actions .btn{display:none}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 20px;border-bottom:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow)}
      .nav-links.open{display:grid}
      .nav-links a{padding:13px 10px}
      .nav-links a.active:after{bottom:7px}
      .intro-shell{padding:42px 28px}
      .intro-copy p{font-size:16px}
      .info-strip,.feature-card,.service-box{grid-template-columns:1fr}
      .feature-visual{min-height:260px}
      .feature-copy{padding:32px 28px}
      .feature-copy .btn{margin-top:25px}
      .news-card{grid-template-columns:120px 1fr}
      .news-art{min-height:120px}
      .topic-grid{grid-template-columns:1fr 1fr}
      .topic-card:first-child{grid-column:1/-1}
      .service-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1.25fr 1fr;gap:35px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:grid;gap:7px}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .container{width:min(calc(100% - 28px),var(--container))}
      .section{padding:50px 0}
      .section-head{display:block;margin-bottom:25px}
      .section-head p{margin-top:8px}
      .breadcrumb-wrap{padding-top:20px}
      .page-intro{padding:27px 0 45px}
      .intro-shell{padding:34px 22px;border-radius:20px}
      .intro-shell:before{width:180px;height:180px;right:-80px;top:-80px}
      .intro-shell:after{display:none}
      .intro-copy h1{font-size:32px}
      .intro-meta{gap:8px}
      .info-strip{display:block;border-radius:15px}
      .strip-cell{border-bottom:1px solid var(--line)}
      .strip-cell:last-child{border-bottom:0}
      .feature-visual{min-height:215px}
      .feature-copy h2{font-size:27px}
      .feature-copy{padding:28px 22px}
      .news-card{grid-template-columns:1fr;padding:13px}
      .news-art{min-height:135px}
      .news-content{padding:4px 3px 2px}
      .news-content h3{font-size:17px}
      .sidebar-panel{display:block;padding:22px}
      .sidebar-panel h3{margin-bottom:14px}
      .rank-list{grid-template-columns:1fr}
      .notice-item{grid-template-columns:1fr;gap:4px;padding-left:15px}
      .notice-date{font-size:13px}
      .topic-grid{grid-template-columns:1fr}
      .topic-card:first-child{grid-column:auto}
      .service-box{padding:32px 24px}
      .service-actions{display:grid;grid-template-columns:1fr}
      .footer{padding-top:50px}
      .footer-grid{grid-template-columns:1fr;gap:30px}
      .footer-grid>div:first-child{grid-column:auto}
    }

/* roulang page: category2 */
:root{
      --coral:#ef684f;--coral-dark:#d9533d;--graphite:#24302f;--sage:#7d9b82;
      --cream:#f8f0e6;--paper:#fcfaf7;--mint:#edf3ed;--muted:#687370;
      --line:#e6e2db;--white:#fff;--danger:#b84e42;--radius:18px;--radius-sm:12px;
      --shadow:0 12px 32px rgba(51,47,40,.08);--shadow-soft:0 5px 18px rgba(51,47,40,.06);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--graphite);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--coral-dark)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,4.2vw,52px);line-height:1.2;letter-spacing:-.03em;margin-bottom:18px}
    h2{font-size:clamp(27px,3vw,36px);line-height:1.3;margin-bottom:12px;letter-spacing:-.02em}
    h3{line-height:1.4}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .section{padding:84px 0}
    .section-tight{padding:56px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:20px;height:2px;background:var(--coral)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
    .section-head p{margin:7px 0 0;color:var(--muted);max-width:680px}
    .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:.22s ease}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
    .btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(239,104,79,.25);outline-offset:3px}
    .btn-primary{background:var(--coral);color:#fff}
    .btn-primary:hover{background:var(--coral-dark);color:#fff}
    .btn-secondary{border-color:var(--graphite);background:transparent}
    .btn-secondary:hover{background:var(--cream);color:var(--graphite)}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:8px;background:#fde5df;color:#a84736;font-size:12px;font-weight:800}
    .badge.green{background:#e4eee5;color:#55735b}
    .badge.cream{background:var(--cream);color:#715c45}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(252,250,247,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:flex;align-items:center;gap:10px;min-width:220px;font-size:17px;font-weight:900;line-height:1.25}
    .brand:hover{color:var(--graphite)}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--coral);position:relative;box-shadow:inset -6px -6px 0 rgba(0,0,0,.08);flex:0 0 auto}
    .brand-mark:after{content:"";position:absolute;left:13px;top:9px;border-left:11px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:23px 12px 20px;position:relative;font-size:14px;font-weight:750;color:#4f5b58;white-space:nowrap}
    .nav-links a:hover,.nav-links a.active{color:var(--coral-dark)}
    .nav-links a.active:after{content:"";position:absolute;bottom:13px;left:12px;right:12px;height:3px;border-radius:3px;background:var(--coral)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .nav-actions .btn{min-height:42px;padding:8px 15px;font-size:14px}
    .menu-toggle{display:none;border:0;background:transparent;font-size:25px;color:var(--graphite)}
    .breadcrumb-wrap{padding:30px 0 0}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin:0}
    .breadcrumb span:last-child{color:var(--graphite);font-weight:700}
    .page-intro{padding:42px 0 58px}
    .intro-shell{display:grid;grid-template-columns:1.2fr .8fr;gap:38px;align-items:end}
    .intro-shell p{max-width:700px;color:var(--muted);font-size:17px;margin-bottom:0}
    .intro-note{padding:22px 24px;border-radius:var(--radius);background:var(--cream);border:1px solid #eee0d1}
    .intro-note strong{display:block;font-size:24px;margin-bottom:4px}
    .intro-note span{color:#6e665d;font-size:14px}
    .info-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;box-shadow:var(--shadow-soft)}
    .info-cell{padding:23px 25px;border-right:1px solid var(--line)}
    .info-cell:last-child{border-right:0}
    .info-cell strong{display:block;font-size:18px;margin-bottom:3px}
    .info-cell span{color:var(--muted);font-size:13px}
    .download-panel{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;padding:34px;border-radius:24px;background:var(--cream);border:1px solid #ecded0}
    .download-panel h2{margin-top:15px}
    .download-panel p{color:#5f625d;max-width:570px}
    .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .version-line{display:flex;flex-wrap:wrap;gap:9px;margin-top:23px}
    .qr-box{display:flex;align-items:center;justify-content:center;min-height:236px;border-radius:18px;background:#fff;border:1px dashed #d8c9b9;position:relative}
    .qr-pattern{width:142px;height:142px;border:9px solid var(--graphite);background:
      linear-gradient(90deg,var(--graphite) 12px,transparent 12px 24px,var(--graphite) 24px 38px,transparent 38px 53px,var(--graphite) 53px 68px,transparent 68px),
      linear-gradient(var(--graphite) 12px,transparent 12px 25px,var(--graphite) 25px 39px,transparent 39px 56px,var(--graphite) 56px 73px,transparent 73px);
      opacity:.9}
    .qr-box small{position:absolute;bottom:13px;color:var(--muted);font-size:12px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{position:relative;padding:28px 24px 10px;border-right:1px solid var(--line)}
    .step:last-child{border-right:0}
    .step-number{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--coral);color:#fff;font-weight:900;margin-bottom:17px}
    .step h3{font-size:18px;margin-bottom:7px}
    .step p{font-size:14px;color:var(--muted);margin-bottom:0}
    .updates{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}
    .update-card{padding:29px;border-radius:var(--radius);background:var(--graphite);color:#fff;min-height:245px;position:relative;overflow:hidden}
    .update-card:after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;right:-85px;bottom:-100px;background:rgba(239,104,79,.65)}
    .update-card h3,.update-card p,.update-card .badge{position:relative;z-index:1}
    .update-card h3{font-size:28px;margin:22px 0 10px}
    .update-card p{color:#d6dcda;max-width:510px}
    .update-list{display:grid;gap:12px}
    .update-row{display:grid;grid-template-columns:108px 1fr;gap:15px;align-items:start;padding:19px 20px;border:1px solid var(--line);background:#fff;border-radius:15px;transition:.2s}
    .update-row:hover{border-color:#efb4a7;box-shadow:var(--shadow-soft);transform:translateX(3px)}
    .update-row time{font-size:13px;color:var(--muted);padding-top:2px}
    .update-row h3{font-size:16px;margin:0 0 4px}
    .update-row p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}
    .support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .support-card{padding:24px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
    .support-icon{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;background:var(--mint);color:var(--sage);font-weight:900;font-size:19px;margin-bottom:18px}
    .support-card h3{font-size:18px;margin-bottom:7px}
    .support-card p{margin:0;color:var(--muted);font-size:14px}
    .faq-list{max-width:860px;margin:auto;display:grid;gap:11px}
    .faq-item{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
    .faq-item summary{padding:18px 21px;font-weight:800;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--coral);font-size:20px;line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 21px 20px;color:var(--muted);font-size:14px}
    .feedback{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center;padding:35px;border-radius:24px;background:var(--mint)}
    .feedback p{color:#5a685d;max-width:500px}
    .footer{padding:58px 0 23px;background:var(--graphite);color:#f6f1e9}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding-bottom:42px}
    .footer .brand{color:#fff;margin-bottom:16px}
    .footer p{color:#bfc9c5;font-size:14px;max-width:310px}
    .footer h3{font-size:15px;margin:4px 0 15px;color:#fff}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:14px;color:#bfc9c5;transition:.2s}
    .footer-links a:hover{color:#fff;padding-left:3px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.13);padding-top:19px;color:#9eaaa5;font-size:12px}
    @media(max-width:1024px){
      .nav-links a{padding-left:8px;padding-right:8px}
      .intro-shell,.download-panel,.updates{grid-template-columns:1fr}
      .info-strip{grid-template-columns:repeat(2,1fr)}
      .info-cell:nth-child(2){border-right:0}.info-cell:nth-child(-n+2){border-bottom:1px solid var(--line)}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-wrap{height:68px}.brand{min-width:0;font-size:15px}
      .nav-actions .btn{display:none}.menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;flex-direction:column;align-items:stretch;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 15px}.nav-links a.active:after{left:15px;right:auto;width:28px;bottom:7px}
      .section{padding:62px 0}.page-intro{padding:32px 0 40px}
      .steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .support-grid{grid-template-columns:1fr 1fr}
      .feedback{grid-template-columns:1fr;padding:27px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:5px}
    }
    @media(max-width:520px){
      h1{font-size:32px}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:12px}
      .info-strip,.support-grid{grid-template-columns:1fr}
      .info-cell{border-right:0!important;border-bottom:1px solid var(--line)}
      .info-cell:last-child{border-bottom:0}
      .download-panel{padding:23px}.qr-box{min-height:200px}
      .steps{grid-template-columns:1fr}.step{border-right:0!important;border-bottom:1px solid var(--line)!important;padding:22px 17px}
      .step:last-child{border-bottom:0!important}.update-row{grid-template-columns:1fr;gap:4px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .footer{padding-top:42px}
    }

/* roulang page: category3 */
:root{
      --coral:#ef684f;--coral-dark:#d9533d;--graphite:#24302f;--sage:#7d9b82;
      --cream:#f8f0e6;--paper:#fcfaf7;--mint:#edf3ed;--muted:#687370;
      --line:#e6e2db;--white:#fff;--danger:#b84e42;--radius:18px;--radius-sm:12px;
      --shadow:0 12px 32px rgba(51,47,40,.08);--shadow-soft:0 5px 18px rgba(51,47,40,.06);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--graphite);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--coral-dark)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .section{padding:86px 0}
    .section-tight{padding:52px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:20px;height:2px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,4vw,52px);line-height:1.22;letter-spacing:-.04em;font-weight:800}
    h2{font-size:clamp(26px,3vw,34px);line-height:1.3;letter-spacing:-.025em;font-weight:800}
    h3{font-size:20px;line-height:1.4}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
    .section-head p{margin:8px 0 0;color:var(--muted);max-width:650px}
    .text-link{font-weight:800;color:var(--coral-dark);white-space:nowrap}
    .text-link:hover{text-decoration:underline}
    .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:.22s ease}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
    .btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(239,104,79,.25);outline-offset:3px}
    .btn-primary{background:var(--coral);color:#fff}
    .btn-primary:hover{background:var(--coral-dark);color:#fff}
    .btn-secondary{border-color:var(--graphite);background:transparent}
    .btn-secondary:hover{background:var(--cream);color:var(--graphite)}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:8px;background:#fde5df;color:#a84736;font-size:12px;font-weight:800}
    .badge.green{background:#e4eee5;color:#55735b}
    .badge.cream{background:var(--cream);color:#715c45}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(252,250,247,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:flex;align-items:center;gap:10px;min-width:220px;font-size:17px;font-weight:900;line-height:1.25}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--coral);position:relative;box-shadow:inset -6px -6px 0 rgba(0,0,0,.08);flex:0 0 auto}
    .brand-mark:after{content:"";position:absolute;left:13px;top:9px;border-left:11px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:23px 12px 20px;position:relative;font-size:14px;font-weight:750;color:#4f5b58}
    .nav-links a:hover,.nav-links a.active{color:var(--coral-dark)}
    .nav-links a.active:after{content:"";position:absolute;bottom:13px;left:12px;right:12px;height:3px;border-radius:3px;background:var(--coral)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{display:none;border:0;background:transparent;font-size:25px;color:var(--graphite)}
    .page-intro{padding:58px 0 42px;background:var(--cream)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:28px}
    .breadcrumb span:last-child{color:var(--graphite);font-weight:700}
    .intro-row{display:flex;justify-content:space-between;align-items:end;gap:40px}
    .intro-copy{max-width:720px}
    .intro-copy h1{margin:15px 0 16px}
    .intro-copy p{color:#58645f;font-size:17px;margin:0}
    .intro-note{width:260px;padding:20px;border:1px solid #e6d8ca;border-radius:16px;background:rgba(255,255,255,.55)}
    .intro-note strong{display:block;font-size:25px;color:var(--coral-dark);line-height:1.2}
    .intro-note span{display:block;color:var(--muted);font-size:13px;margin-top:6px}
    .anchor-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;padding:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
    .anchor-item{background:#fff;padding:20px 22px;display:flex;align-items:center;gap:14px;transition:.2s}
    .anchor-item:hover{background:var(--mint)}
    .anchor-num{width:32px;height:32px;border-radius:10px;background:var(--cream);color:var(--coral-dark);display:grid;place-items:center;font-weight:900}
    .anchor-item strong{display:block;font-size:15px}
    .anchor-item small{display:block;color:var(--muted);font-size:12px}
    .guide-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .guide-feature{padding:34px;border-radius:22px;background:var(--graphite);color:#fff;min-height:360px;position:relative;overflow:hidden}
    .guide-feature:after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;right:-90px;bottom:-95px;background:rgba(239,104,79,.75)}
    .guide-feature h2,.guide-feature p,.guide-feature .badge{position:relative;z-index:1}
    .guide-feature h2{max-width:450px;margin:23px 0 15px}
    .guide-feature p{color:#d8dfdc;max-width:450px}
    .guide-feature .btn{position:relative;z-index:2;margin-top:22px}
    .guide-list{display:grid;gap:12px}
    .guide-list a{display:grid;grid-template-columns:48px 1fr auto;align-items:center;gap:15px;padding:19px;border:1px solid var(--line);border-radius:15px;background:#fff;transition:.2s}
    .guide-list a:hover{border-color:#edb1a5;box-shadow:var(--shadow-soft);transform:translateX(3px)}
    .guide-icon{width:48px;height:48px;border-radius:14px;background:var(--cream);display:grid;place-items:center;font-size:20px}
    .guide-list strong{display:block;font-size:16px}
    .guide-list span{display:block;color:var(--muted);font-size:13px;line-height:1.5}
    .guide-list em{font-style:normal;color:var(--coral);font-size:22px}
    .map-section{background:var(--mint)}
    .feature-map{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .map-card{padding:24px;background:#fff;border:1px solid #dce6dd;border-radius:18px;min-height:170px}
    .map-card .map-symbol{font-size:25px;color:var(--coral);margin-bottom:18px}
    .map-card h3{margin-bottom:6px;font-size:18px}
    .map-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .doc-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .doc-step{position:relative;padding:28px 24px 15px;border-right:1px solid var(--line)}
    .doc-step:last-child{border-right:0}
    .doc-step:before{content:"";position:absolute;top:-8px;left:24px;width:15px;height:15px;border:4px solid var(--paper);border-radius:50%;background:var(--coral)}
    .doc-step b{color:var(--coral-dark);font-size:13px}
    .doc-step h3{margin:12px 0 7px;font-size:18px}
    .doc-step p{margin:0;color:var(--muted);font-size:14px}
    .faq-wrap{max-width:850px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;background:transparent;border:0;padding:20px 4px;color:var(--graphite);font-weight:800}
    .faq-question span:last-child{font-size:24px;color:var(--coral);transition:.2s}
    .faq-question[aria-expanded="true"] span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;padding:0 42px 20px 4px;color:var(--muted);font-size:14px}
    .faq-answer.open{display:block}
    .support-band{background:var(--cream);border-radius:24px;padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .support-band h2{margin:0 0 8px;font-size:28px}
    .support-band p{margin:0;color:var(--muted)}
    .support-actions{display:flex;gap:11px;flex-wrap:wrap}
    .footer{padding:58px 0 24px;background:var(--graphite);color:#f7f4ee}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:42px}
    .footer .brand{color:#fff;margin-bottom:18px}
    .footer .brand-mark{background:var(--coral)}
    .footer p{color:#b9c2bd;max-width:330px;font-size:14px}
    .footer h3{font-size:15px;margin:5px 0 15px;color:#fff}
    .footer-links{display:grid;gap:7px}
    .footer-links a{color:#b9c2bd;font-size:14px}
    .footer-links a:hover{color:#fff;text-decoration:underline}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#aeb8b2;font-size:12px}
    @media(max-width:1024px){
      .nav-links a{padding-left:8px;padding-right:8px}
      .brand{min-width:195px}
      .guide-layout{grid-template-columns:1fr}
      .feature-map{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-wrap{height:68px}
      .menu-toggle{display:block}
      .nav-actions .btn{display:none}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
      .nav-links.show{display:grid}
      .nav-links a{padding:11px 10px}
      .nav-links a.active:after{left:0;right:auto;bottom:5px;width:28px}
      .intro-row{display:block}
      .intro-note{width:100%;margin-top:25px}
      .anchor-bar{grid-template-columns:repeat(2,1fr)}
      .doc-steps{grid-template-columns:1fr 1fr}
      .doc-step:nth-child(2){border-right:0}
      .doc-step:nth-child(3),.doc-step:nth-child(4){border-top:1px solid var(--line)}
      .support-band{display:block;padding:28px}
      .support-actions{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .section{padding:62px 0}
      .section-head{display:block}
      .section-head .text-link{display:inline-block;margin-top:14px}
      h1{font-size:32px}
      .anchor-bar,.feature-map,.doc-steps{grid-template-columns:1fr}
      .doc-step{border-right:0!important;border-top:1px solid var(--line)}
      .doc-step:first-child{border-top:0}
      .guide-feature{padding:26px}
      .guide-list a{grid-template-columns:42px 1fr auto;padding:15px}
      .guide-icon{width:42px;height:42px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }

/* roulang page: category4 */
:root{
  --coral:#ef684f;--coral-dark:#d9533d;--graphite:#24302f;--sage:#7d9b82;
  --cream:#f8f0e6;--paper:#fcfaf7;--mint:#edf3ed;--muted:#687370;
  --line:#e6e2db;--white:#fff;--danger:#b84e42;--radius:18px;--radius-sm:12px;
  --shadow:0 12px 32px rgba(51,47,40,.08);--shadow-soft:0 5px 18px rgba(51,47,40,.06);
  --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--graphite);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--container));margin:auto}
.section{padding:82px 0}
.section-soft{background:var(--cream)}
.section-mint{background:var(--mint)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:2px;background:var(--coral)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2,.page-hero h1{margin:10px 0 0;font-weight:800;letter-spacing:-.03em}
.section-head h2{font-size:32px}
.section-head p{max-width:580px;margin:8px 0 0;color:var(--muted)}
.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,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
.btn:focus,a:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(239,104,79,.25);outline-offset:3px}
.btn-primary{background:var(--coral);color:#fff}
.btn-primary:hover{background:var(--coral-dark)}
.btn-secondary{border-color:var(--graphite);background:transparent;color:var(--graphite)}
.btn-secondary:hover{background:var(--cream)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:8px;background:#fde5df;color:#a84736;font-size:12px;font-weight:800}
.badge.green{background:#e4eee5;color:#55735b}
.badge.cream{background:var(--cream);color:#715c45}
.site-header{position:sticky;top:0;z-index:50;background:rgba(252,250,247,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{display:flex;align-items:center;gap:10px;min-width:220px;font-size:17px;font-weight:900;line-height:1.25}
.brand-mark{flex:none;width:34px;height:34px;border-radius:11px;background:var(--coral);position:relative;box-shadow:inset -6px -6px 0 rgba(0,0,0,.08)}
.brand-mark:after{content:"";position:absolute;left:13px;top:9px;border-left:11px solid #fff;border-top:8px solid transparent;border-bottom:8px solid transparent}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:23px 12px 20px;position:relative;font-size:14px;font-weight:750;color:#4f5b58;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--coral-dark)}
.nav-links a.active:after{content:"";position:absolute;bottom:13px;left:12px;right:12px;height:3px;border-radius:3px;background:var(--coral)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-actions .btn{min-height:42px;padding:8px 15px;font-size:14px}
.menu-toggle{display:none;border:0;background:transparent;font-size:25px;color:var(--graphite)}
.breadcrumb{padding:28px 0 0;color:#84908c;font-size:14px}
.breadcrumb span{margin:0 8px;color:#b0b6b2}
.breadcrumb strong{color:var(--graphite);font-weight:700}
.page-hero{padding:34px 0 50px}
.page-hero-inner{position:relative;overflow:hidden;padding:52px 6%;border:1px solid #eaded0;border-radius:28px;background:var(--cream)}
.page-hero-inner:before{content:"";position:absolute;right:-72px;top:-105px;width:300px;height:300px;border-radius:50%;background:#f5cfbd}
.page-hero-inner:after{content:"";position:absolute;right:14%;bottom:-45px;width:130px;height:130px;border-radius:28px;background:#dce8dc;transform:rotate(18deg)}
.page-hero-content{position:relative;z-index:1;max-width:780px}
.page-hero h1{font-size:47px;line-height:1.25}
.page-hero p{max-width:690px;margin:17px 0 0;color:#54605d;font-size:17px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.hero-meta span{padding:7px 11px;border:1px solid #e5d9cc;border-radius:9px;background:rgba(255,255,255,.65);font-size:13px;font-weight:700}
.overview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.security-card{padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:.2s}
.security-card:hover{transform:translateY(-4px);border-color:#eeb3a7;box-shadow:var(--shadow)}
.icon-box{display:grid;place-items:center;width:47px;height:47px;border-radius:14px;background:#fde5df;color:var(--coral-dark);font-size:22px;font-weight:900}
.security-card:nth-child(2) .icon-box{background:#e4eee5;color:#55735b}
.security-card:nth-child(3) .icon-box{background:#f8f0e6;color:#715c45}
.security-card h3{margin:17px 0 8px;font-size:20px;font-weight:800}
.security-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
.doc-layout{display:grid;grid-template-columns:.84fr 1.16fr;gap:28px;align-items:start}
.doc-intro{padding:34px;border-radius:22px;background:var(--graphite);color:#fff;position:sticky;top:108px}
.doc-intro h2{margin:14px 0 12px;font-size:29px;line-height:1.35}
.doc-intro p{margin:0;color:#d3dcda}
.doc-intro .badge{margin-top:24px}
.doc-list{display:grid;gap:13px}
.doc-item{display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;padding:21px 22px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.2s}
.doc-item:hover{border-color:#eeb3a7;box-shadow:var(--shadow-soft)}
.doc-number{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:var(--cream);font-size:13px;font-weight:900;color:var(--coral-dark)}
.doc-item h3{margin:0;font-size:17px;font-weight:800}
.doc-item p{margin:4px 0 0;color:var(--muted);font-size:13px;line-height:1.6}
.doc-arrow{font-size:23px;color:var(--coral);transition:.2s}
.doc-item:hover .doc-arrow{transform:translateX(4px)}
.process{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;align-items:center;gap:14px}
.process-step{min-height:190px;padding:25px 21px;border:1px solid var(--line);border-radius:18px;background:#fff}
.process-step b{display:grid;place-items:center;width:35px;height:35px;margin-bottom:18px;border-radius:50%;background:var(--coral);color:#fff;font-size:14px}
.process-step h3{margin:0 0 8px;font-size:18px;font-weight:800}
.process-step p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.process-line{height:2px;width:30px;background:#d6dfd7;position:relative}
.process-line:after{content:"";position:absolute;right:0;top:-4px;width:9px;height:9px;border-top:2px solid var(--sage);border-right:2px solid var(--sage);transform:rotate(45deg)}
.support-layout{display:grid;grid-template-columns:1.18fr .82fr;gap:28px}
.form-card,.support-card{padding:34px;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow-soft)}
.form-card h2,.support-card h2{margin:10px 0 7px;font-size:28px;font-weight:800}
.form-card>p,.support-card>p{margin:0 0 24px;color:var(--muted);font-size:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:800}
.field input,.field select,.field textarea{width:100%;border:1px solid #dcd9d3;border-radius:11px;background:#fff;padding:11px 13px;color:var(--graphite);line-height:1.5;transition:border-color .2s,box-shadow .2s}
.field textarea{height:120px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--coral);box-shadow:0 0 0 4px rgba(239,104,79,.1);outline:0}
.form-note{margin:15px 0 0;color:#79827f;font-size:12px;line-height:1.7}
.form-result{display:none;margin-top:15px;padding:12px 14px;border-radius:10px;background:#e4eee5;color:#45684c;font-size:14px;font-weight:700}
.support-card{background:var(--mint)}
.support-list{display:grid;gap:13px;margin-top:22px}
.support-row{display:flex;gap:13px;padding:14px 0;border-bottom:1px solid #d7e2d8}
.support-row:last-child{border-bottom:0}
.support-row i{font-style:normal;color:var(--sage);font-weight:900}
.support-row strong{display:block;font-size:15px}
.support-row span{display:block;color:#62706a;font-size:13px;line-height:1.55}
.rules-box{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;padding:42px;border:1px solid #e9ddce;border-radius:24px;background:#fff8ef}
.rules-box h2{margin:10px 0 12px;font-size:30px;font-weight:800}
.rules-box p{margin:0;color:#5d655f}
.rule-points{display:grid;gap:13px}
.rule-points div{display:flex;gap:11px;align-items:flex-start;padding:13px 0;border-bottom:1px solid #eadfd2;font-size:14px;color:#535b56}
.rule-points div:last-child{border-bottom:0}
.rule-points b{color:var(--coral-dark)}
.faq-wrap{max-width:920px;margin:auto}
.faq-item{border-bottom:1px solid var(--line);background:#fff}
.faq-question{width:100%;display:flex;align-items:center;gap:15px;padding:21px 23px;border:0;background:transparent;text-align:left;color:var(--graphite);font-weight:800}
.faq-index{color:var(--coral-dark);font-size:13px}
.faq-question span:nth-child(2){flex:1}
.faq-symbol{font-size:22px;font-weight:400;color:var(--coral);transition:.2s}
.faq-answer{display:none;padding:0 58px 23px;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-symbol{transform:rotate(45deg)}
.faq-item:first-child{border-radius:16px 16px 0 0}
.faq-item:last-child{border-radius:0 0 16px 16px}
.footer{padding:62px 0 26px;background:var(--graphite);color:#eef1ef}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr;gap:54px;padding-bottom:45px}
.footer .brand{color:#fff;min-width:0}
.footer p{max-width:380px;margin:18px 0 0;color:#b9c2be;font-size:14px;line-height:1.7}
.footer h3{margin:5px 0 17px;font-size:15px;color:#fff}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#bac3be;font-size:14px;transition:.2s}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{display:flex;justify-content:space-between;gap:25px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);color:#aeb8b3;font-size:12px}
@media(max-width:1024px){
  .nav-links a{padding-left:8px;padding-right:8px}
  .brand{min-width:190px;font-size:15px}
  .doc-layout,.support-layout{grid-template-columns:1fr}
  .doc-intro{position:relative;top:auto}
  .process{grid-template-columns:1fr 1fr;gap:16px}
  .process-line{display:none}
}
@media(max-width:768px){
  .container{width:min(calc(100% - 32px),var(--container))}
  .nav-wrap{height:68px}
  .nav-actions .btn{display:none}
  .menu-toggle{display:block}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:10px 16px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav-links.show{display:grid}
  .nav-links a{padding:11px 9px}
  .nav-links a.active:after{bottom:5px}
  .breadcrumb{padding-top:19px}
  .page-hero{padding:24px 0 38px}
  .page-hero-inner{padding:38px 25px}
  .page-hero h1{font-size:33px}
  .page-hero p{font-size:15px}
  .section{padding:60px 0}
  .section-head{display:block;margin-bottom:25px}
  .section-head h2{font-size:26px}
  .overview-grid{grid-template-columns:1fr}
  .process{grid-template-columns:1fr 1fr}
  .rules-box{grid-template-columns:1fr;padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:520px){
  body{font-size:15px}
  .brand{font-size:14px;min-width:0}
  .brand-mark{width:31px;height:31px}
  .brand-mark:after{left:12px;top:8px}
  .page-hero h1{font-size:29px}
  .hero-meta{gap:7px}
  .hero-meta span{font-size:12px}
  .section{padding:50px 0}
  .security-card,.form-card,.support-card{padding:23px}
  .doc-item{grid-template-columns:44px 1fr;gap:13px;padding:17px}
  .doc-arrow{display:none}
  .process{grid-template-columns:1fr}
  .process-step{min-height:auto}
  .form-grid{grid-template-columns:1fr}
  .field.full{grid-column:auto}
  .faq-question{padding:17px 16px;gap:10px}
  .faq-answer{padding:0 16px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-grid>div:first-child{grid-column:auto}
  .footer-bottom{display:grid;gap:8px}
}