/* roulang page: index */
:root{--ink:#121817;--ink-2:#1b2422;--paper:#f6f5f0;--surface:#fffefa;--line:#d9ddd5;--muted:#65706c;--mint:#39d5aa;--mint-dark:#0c6d58;--amber:#d89435;--coral:#bb604d;--soft-mint:#e5f8f0;--radius:14px;--shadow:0 16px 38px rgba(17,28,25,.08);--container:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}button{font:inherit}a:focus-visible,button:focus-visible{outline:3px solid var(--amber);outline-offset:3px}.container{width:min(calc(100% - 48px),var(--container));margin:auto}.notice{background:#26312e;color:#e6efeb;font-size:13px;line-height:1.55}.notice .container{padding:9px 0;display:flex;align-items:center;gap:10px}.notice i{width:8px;height:8px;flex:none;border-radius:50%;background:var(--amber)}.site-header{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}.nav-wrap{min-height:74px;display:flex;justify-content:space-between;align-items:center;gap:25px}.logo{font-weight:850;letter-spacing:-.04em;font-size:19px;line-height:1.2}.logo small{display:block;color:var(--mint-dark);font-size:11px;letter-spacing:.08em;font-weight:700;margin-top:3px}.logo-mark{display:inline-flex;align-items:center;justify-content:center;background:var(--mint);width:27px;height:27px;border-radius:8px;margin-right:8px;font-size:14px;color:#10211d}.nav-links{display:flex;align-items:center;gap:4px}.nav-links a{padding:9px 12px;border-radius:8px;color:#47534f;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s}.nav-links a:hover,.nav-links a.active{background:var(--soft-mint);color:#075542}.menu-button{display:none;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:8px 11px;color:var(--ink)}.hero{background:var(--ink);color:#f7fbf8;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 5%,rgba(57,213,170,.09) 48%,transparent 70%)}.hero-grid{position:relative;padding:77px 0 70px;display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:end}.eyebrow,.label{display:inline-flex;align-items:center;gap:7px;text-transform:none;font-size:12px;font-weight:800;letter-spacing:.07em}.eyebrow{color:#9cebd5}.eyebrow:before{content:"";width:21px;height:2px;background:var(--mint)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(34px,4vw,51px);line-height:1.22;letter-spacing:-.055em;margin:15px 0 20px;max-width:760px}.hero-copy{color:#c5d2cd;font-size:17px;max-width:670px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:800;font-size:14px;transition:transform .2s,background .2s,border .2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--mint);color:#10201c}.btn-ghost{border-color:#577067;color:#edf5f1}.btn-ghost:hover{border-color:var(--mint);color:var(--mint)}.signal-panel{border:1px solid #3c514b;border-radius:var(--radius);background:#18221f;padding:10px;box-shadow:var(--shadow)}.panel-top{padding:13px 15px;border-bottom:1px solid #34443f;display:flex;justify-content:space-between;color:#cdd9d4;font-size:13px}.live-dot{color:#93eace}.live-dot:before{content:"●";margin-right:6px;color:var(--mint)}.signal-list{padding:7px}.signal-row{display:flex;align-items:center;gap:14px;padding:15px 9px;border-bottom:1px solid #2d3c37}.signal-row:last-child{border:0}.signal-icon{width:31px;height:31px;border:1px solid #52746a;border-radius:50%;display:grid;place-items:center;color:var(--mint);font-weight:800}.signal-row b{display:block;font-size:14px}.signal-row span{font-size:12px;color:#93a59e}.section{padding:86px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}.section-head h2{font-size:clamp(26px,3vw,34px);line-height:1.25;letter-spacing:-.04em;margin:8px 0 0}.section-head p{color:var(--muted);max-width:560px;margin:0}.label{color:var(--mint-dark)}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.quick-card{padding:25px 21px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);min-height:220px;display:flex;flex-direction:column;transition:.2s}.quick-card:hover{background:#effaf5;transform:translateY(-4px)}.quick-no{font-weight:850;color:var(--amber);font-size:13px}.quick-card h3{font-size:19px;line-height:1.35;margin:26px 0 10px}.quick-card p{color:var(--muted);font-size:14px;line-height:1.7}.arrow-link{margin-top:auto;color:var(--mint-dark);font-size:14px;font-weight:800}.arrow-link:hover{color:var(--ink)}.safety{background:#e9ece6}.safety-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:36px}.checklist{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px}.checklist h2,.warning h2{font-size:28px;line-height:1.3;margin-bottom:9px}.checklist>p,.warning>p{color:var(--muted)}.steps{list-style:none;padding:0;margin:25px 0 0;counter-reset:step}.steps li{counter-increment:step;padding:0 0 22px 55px;position:relative}.steps li:before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--mint-dark);font-weight:900}.steps li:after{content:"";position:absolute;left:14px;top:31px;width:1px;height:calc(100% - 12px);background:var(--line)}.steps li:last-child:after{display:none}.steps b{display:block;line-height:1.4}.steps span{font-size:14px;color:var(--muted);line-height:1.65}.warning{background:#312722;color:#fff5ed;border-radius:var(--radius);padding:31px;border-left:5px solid var(--amber)}.warning>p{color:#dfcdc2}.risk-list{list-style:none;padding:0;margin:23px 0}.risk-list li{padding:12px 0;border-top:1px solid #584942;font-size:14px}.risk-list li:before{content:"×";color:#f0aa74;margin-right:11px;font-weight:900}.app-section{background:var(--ink);color:#f7fbf8}.app-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}.device{margin:auto;width:240px;border:8px solid #56615d;border-radius:30px;background:#101614;padding:13px;box-shadow:16px 16px 0 #2c3935}.device-screen{border-radius:17px;background:linear-gradient(155deg,#25423a,#17231f);padding:25px 18px;height:410px}.device-screen small{color:#9cebd5}.device-screen h3{font-size:28px;line-height:1.25;margin-top:40px}.screen-lines span{display:block;height:9px;background:#668078;border-radius:20px;margin:12px 0}.screen-lines span:nth-child(2){width:74%;background:var(--mint)}.app-content p{color:#b7c7c1;max-width:670px}.compatibility{display:flex;flex-wrap:wrap;gap:8px;margin:21px 0}.compatibility span{border:1px solid #476359;color:#cde6dd;padding:5px 10px;border-radius:30px;font-size:12px;font-weight:700}.app-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:13px;margin:27px 0}.app-step{border-top:1px solid #52645e;padding-top:13px;font-size:14px}.app-step b{color:var(--mint);display:block;margin-bottom:6px}.news-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px}.featured{background:var(--ink-2);color:#f7fbf8;border-radius:var(--radius);padding:34px;display:flex;flex-direction:column;min-height:355px}.featured p{color:#b7c8c1}.meta{display:flex;gap:9px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted)}.featured .meta{color:#a8b9b2}.tag{display:inline-block;padding:3px 8px;border-radius:20px;background:var(--soft-mint);color:var(--mint-dark);font-weight:800}.featured .tag{background:#304a42;color:#a9ebd7}.featured h3{font-size:28px;line-height:1.35;margin:22px 0 12px}.news-list{border-top:1px solid var(--line)}.news-row{display:grid;grid-template-columns:92px 1fr 28px;gap:15px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line);transition:.2s}.news-row:hover{padding-left:10px;background:#f0f4ef}.news-row time{font-size:13px;font-weight:800;color:var(--mint-dark)}.news-row h3{font-size:16px;line-height:1.45;margin:7px 0 0}.news-row .go{color:var(--mint-dark);font-size:21px}.faq-wrap{max-width:900px}.faq{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;padding:21px 0;border:0;background:transparent;display:flex;justify-content:space-between;text-align:left;color:var(--ink);font-weight:800;font-size:17px;cursor:pointer}.faq-question span:last-child{color:var(--mint-dark);font-size:23px}.faq-answer{display:none;padding:0 34px 22px 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)}.cta{padding:0 0 85px}.cta-box{background:var(--mint);border-radius:var(--radius);padding:39px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-box h2{font-size:30px;line-height:1.3;margin:0}.cta-box p{margin:7px 0 0;color:#255b4d}.cta-box .btn{background:var(--ink);color:#f7fbf8;flex:none}.site-footer{background:#101614;color:#c0cec8;padding:54px 0 24px}.footer-top{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:38px;padding-bottom:35px;border-bottom:1px solid #33403b}.site-footer .logo{color:#fff}.footer-note{font-size:14px;line-height:1.75;max-width:440px;margin-top:16px}.footer-col h3{font-size:14px;color:#fff;margin-bottom:12px}.footer-col a{display:block;font-size:14px;padding:4px 0;color:#b4c3bc}.footer-col a:hover{color:var(--mint)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:12px;color:#81928a}
@media(max-width:1024px){.nav-links a{padding:8px 7px;font-size:13px}.hero-grid,.app-layout{gap:36px}.quick-card{padding:20px 16px}.section{padding:68px 0}}
@media(max-width:767px){.container{width:min(calc(100% - 32px),var(--container))}.notice .container{align-items:flex-start}.nav-wrap{min-height:65px}.menu-button{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:64px;padding:10px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:10px;flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:11px}.hero-grid,.safety-grid,.app-layout,.news-layout{grid-template-columns:1fr}.hero-grid{padding:54px 0 48px;gap:30px}.hero-copy{font-size:16px}.signal-panel{max-width:500px}.section{padding:55px 0}.section-head{display:block;margin-bottom:24px}.section-head p{margin-top:13px}.quick-grid{grid-template-columns:1fr 1fr}.quick-card{min-height:190px}.app-layout{gap:35px}.device{width:205px}.device-screen{height:340px}.app-steps{grid-template-columns:1fr}.cta-box{padding:30px;display:block}.cta-box .btn{margin-top:20px}.footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}}
@media(max-width:520px){h1{font-size:32px}.quick-grid{grid-template-columns:1fr}.quick-card{min-height:165px}.hero-actions .btn{width:100%}.checklist,.warning,.featured{padding:24px}.news-row{grid-template-columns:70px 1fr 20px;gap:8px}.news-row time{font-size:11px}.news-row h3{font-size:15px}.footer-top{grid-template-columns:1fr}.footer-top>div:first-child{grid-column:auto}.cta-box h2{font-size:26px}}

/* roulang page: article */
:root{--ink:#121817;--ink-2:#1b2422;--paper:#f6f5f0;--surface:#fffefa;--line:#d9ddd5;--muted:#65706c;--mint:#39d5aa;--mint-dark:#0c6d58;--amber:#d89435;--coral:#bb604d;--soft-mint:#e5f8f0;--radius:14px;--shadow:0 16px 38px rgba(17,28,25,.08);--container:1200px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8}
    img{max-width:100%;height:auto;display:block}
    a{color:inherit;text-decoration:none}
    button{font:inherit}
    a:focus-visible,button:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .notice{background:#e9efe9;border-bottom:1px solid #ccd8ce;color:#33413b;font-size:13px}
    .notice .container{padding:9px 0;display:flex;align-items:center;gap:10px}
    .notice strong{color:var(--coral);font-size:12px;white-space:nowrap}
    .site-header{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
    .nav-wrap{min-height:74px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .logo{font-weight:850;letter-spacing:-.04em;font-size:19px;line-height:1.2}
    .logo small{display:block;color:var(--mint-dark);font-size:11px;letter-spacing:.08em;font-weight:700;margin-top:3px}
    .logo-mark{display:inline-flex;align-items:center;justify-content:center;background:var(--mint);width:27px;height:27px;border-radius:8px;margin-right:8px;font-size:14px;color:#10211d}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:#47534f;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--soft-mint);color:#075542}
    .menu-button{display:none;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:8px 11px;color:var(--ink)}
    .article-hero{background:var(--ink);color:#f7fbf8;padding:62px 0 58px;position:relative;overflow:hidden}
    .article-hero:after{content:"";position:absolute;width:340px;height:340px;border:1px solid rgba(57,213,170,.23);border-radius:50%;right:7%;top:-170px;box-shadow:0 0 0 34px rgba(57,213,170,.035),0 0 0 68px rgba(57,213,170,.025)}
    .article-hero-inner{position:relative;z-index:1;max-width:900px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#9cebd5;font-size:12px;font-weight:800;letter-spacing:.07em}
    .eyebrow:before{content:"";width:21px;height:2px;background:var(--mint)}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;color:#9eafa8;font-size:13px;margin-bottom:23px}
    .breadcrumb a:hover{color:var(--mint)}
    .article-hero h1{font-size:clamp(32px,5vw,52px);line-height:1.2;letter-spacing:-.05em;margin:15px 0 21px;max-width:850px}
    .hero-summary{color:#c5d2cd;max-width:760px;font-size:17px;margin:0}
    .article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:27px;color:#a8b9b2;font-size:13px}
    .tag{display:inline-block;padding:3px 10px;border-radius:20px;background:var(--soft-mint);color:var(--mint-dark);font-weight:800}
    .article-hero .tag{background:#304a42;color:#a9ebd7}
    .article-layout{display:grid;grid-template-columns:220px minmax(0,800px) 220px;gap:34px;align-items:start;padding:68px 0 82px}
    .side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:sticky;top:102px}
    .side-card h2{font-size:15px;margin:0 0 14px;line-height:1.4}
    .side-card p{font-size:13px;color:var(--muted);line-height:1.7;margin:0}
    .side-card ul{list-style:none;padding:0;margin:0}
    .side-card li{border-top:1px solid var(--line);padding:10px 0;font-size:13px;color:var(--muted)}
    .side-card li:first-child{border-top:0;padding-top:0}
    .side-card a{color:var(--mint-dark);font-weight:700}
    .side-card a:hover{text-decoration:underline}
    .safety-card{background:#fff5e8;border-color:#efd3ae}
    .safety-card h2{color:#8c5923}
    .article-content{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,5vw,55px);box-shadow:var(--shadow)}
    .article-content h2{font-size:clamp(25px,3vw,32px);line-height:1.35;margin:34px 0 14px;letter-spacing:-.035em}
    .article-content h3{font-size:21px;line-height:1.45;margin:28px 0 10px}
    .article-content p{color:#3e4945;margin:0 0 20px;line-height:1.95}
    .article-content ul,.article-content ol{color:#3e4945;padding-left:1.5em;margin:10px 0 24px}
    .article-content li{padding:3px 0}
    .article-content blockquote{margin:27px 0;padding:18px 22px;border-left:4px solid var(--mint);background:var(--soft-mint);color:#255b4d}
    .article-content table{width:100%;border-collapse:collapse;margin:25px 0;display:block;overflow-x:auto}
    .article-content th,.article-content td{border:1px solid var(--line);padding:10px 13px;text-align:left;white-space:nowrap}
    .article-content th{background:#edf5ef}
    .article-content hr{border:0;border-top:1px solid var(--line);margin:34px 0}
    .not-found{text-align:center;padding:55px 20px}
    .not-found h2{margin-top:0}
    .not-found p{color:var(--muted)}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:800;font-size:14px;transition:transform .2s,background .2s,border .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--mint);color:#10201c}
    .btn-primary:hover{background:#63e3c0}
    .related{padding:0 0 85px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:25px}
    .section-head h2{font-size:clamp(26px,3vw,34px);line-height:1.25;letter-spacing:-.04em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:560px;margin:0}
    .related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .related-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:23px;transition:.2s}
    .related-card:hover{border-color:var(--mint);transform:translateY(-3px);box-shadow:var(--shadow)}
    .related-card h3{font-size:18px;line-height:1.45;margin:14px 0 8px}
    .related-card p{color:var(--muted);font-size:14px;margin:0 0 14px}
    .meta{display:flex;gap:9px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted)}
    .cta{padding:0 0 85px}
    .cta-box{background:var(--mint);border-radius:var(--radius);padding:39px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-box h2{font-size:30px;line-height:1.3;margin:0}
    .cta-box p{margin:7px 0 0;color:#255b4d}
    .cta-box .btn{background:var(--ink);color:#f7fbf8;flex:none}
    .site-footer{background:#101614;color:#c0cec8;padding:54px 0 24px}
    .footer-top{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:38px;padding-bottom:35px;border-bottom:1px solid #33403b}
    .site-footer .logo{color:#f2faf5}
    .footer-note{color:#8fa099;font-size:13px;line-height:1.8;max-width:470px;margin:18px 0 0}
    .footer-col{display:flex;flex-direction:column;gap:8px}
    .footer-col h3{font-size:14px;color:#f0f8f3;margin:2px 0 9px}
    .footer-col a{font-size:13px;color:#97a9a1;transition:.2s}
    .footer-col a:hover{color:var(--mint)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#71817a;font-size:12px}
    @media(max-width:1050px){
      .article-layout{grid-template-columns:190px minmax(0,1fr);gap:24px}
      .safety-card{grid-column:1 / -1;position:static}
      .safety-card p{max-width:700px}
    }
    @media(max-width:767px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .notice .container{align-items:flex-start;line-height:1.55;padding:10px 0}
      .nav-wrap{min-height:66px}
      .menu-button{display:block}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:70px;padding:9px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .article-hero{padding:43px 0 42px}
      .article-hero h1{font-size:34px}
      .hero-summary{font-size:15px}
      .article-layout{display:block;padding:37px 0 58px}
      .side-card{position:static;margin-bottom:16px}
      .article-content{padding:25px 20px}
      .article-content p{font-size:15px}
      .related-grid{grid-template-columns:1fr}
      .related{padding-bottom:58px}
      .cta{padding-bottom:58px}
      .cta-box{padding:28px 24px;display:block}
      .cta-box h2{font-size:25px}
      .cta-box .btn{margin-top:19px}
      .footer-top{grid-template-columns:1fr;gap:28px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .article-meta{display:block}
      .article-meta span{display:inline-block;margin:4px 9px 4px 0}
      .breadcrumb{font-size:12px}
    }

/* roulang page: category1 */
:root{--ink:#121817;--ink-2:#1b2422;--paper:#f6f5f0;--surface:#fffefa;--line:#d9ddd5;--muted:#65706c;--mint:#39d5aa;--mint-dark:#0c6d58;--amber:#d89435;--coral:#bb604d;--soft-mint:#e5f8f0;--radius:14px;--shadow:0 16px 38px rgba(17,28,25,.08);--container:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}button{font:inherit}a:focus-visible,button:focus-visible{outline:3px solid var(--amber);outline-offset:3px}.container{width:min(calc(100% - 48px),var(--container));margin:auto}
.notice{background:#25312e;color:#d8e8e1;font-size:13px}.notice .container{padding:9px 0;display:flex;align-items:center;gap:10px}.notice strong{color:var(--mint)}
.site-header{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}.nav-wrap{min-height:74px;display:flex;justify-content:space-between;align-items:center;gap:25px}.logo{font-weight:850;letter-spacing:-.04em;font-size:19px;line-height:1.2}.logo small{display:block;color:var(--mint-dark);font-size:11px;letter-spacing:.08em;font-weight:700;margin-top:3px}.logo-mark{display:inline-flex;align-items:center;justify-content:center;background:var(--mint);width:27px;height:27px;border-radius:8px;margin-right:8px;font-size:14px;color:#10211d}.nav-links{display:flex;align-items:center;gap:4px}.nav-links a{padding:9px 12px;border-radius:8px;color:#47534f;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s}.nav-links a:hover,.nav-links a.active{background:var(--soft-mint);color:#075542}.menu-button{display:none;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:8px 11px;color:var(--ink)}
.hero{background:var(--ink);color:#f7fbf8;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 5%,rgba(57,213,170,.09) 48%,transparent 70%)}.hero-grid{position:relative;padding:75px 0 68px;display:grid;grid-template-columns:1.1fr .9fr;gap:65px;align-items:center}.eyebrow,.label{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;letter-spacing:.07em}.eyebrow{color:#9cebd5}.eyebrow:before{content:"";width:21px;height:2px;background:var(--mint)}h1{font-size:clamp(38px,5vw,56px);line-height:1.16;letter-spacing:-.055em;margin:18px 0 20px}.hero-copy{color:#c5d2cd;font-size:17px;max-width:680px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:800;font-size:14px;transition:transform .2s,background .2s,border .2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--mint);color:#10201c}.btn-ghost{border-color:#577067;color:#edf5f1}.btn-ghost:hover{border-color:var(--mint);color:var(--mint)}
.hero-panel{border:1px solid #3b514a;border-radius:var(--radius);background:#19231f;padding:25px}.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #34443e;padding-bottom:17px;color:#b9cbc3;font-size:13px}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--mint);display:inline-block;margin-right:7px;box-shadow:0 0 0 5px rgba(57,213,170,.12)}.signal-row{display:flex;align-items:center;gap:14px;padding:17px 5px;border-bottom:1px solid #2d3c37}.signal-row:last-child{border:0}.signal-row b{display:block;font-size:14px}.signal-row span{font-size:12px;color:#93a59e}.signal-icon{width:34px;height:34px;border:1px solid #46655a;border-radius:9px;display:grid;place-items:center;color:var(--mint);font-weight:800}
.section{padding:82px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:31px}.section-head h2{font-size:clamp(27px,3vw,35px);line-height:1.25;letter-spacing:-.04em;margin:8px 0 0}.section-head p{color:var(--muted);max-width:570px;margin:0}.label{color:var(--mint-dark)}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px}.intro-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:31px}.intro-card h3{font-size:22px;margin:0 0 13px}.intro-card p{color:var(--muted);margin:0}.accent-card{background:var(--soft-mint);border-color:#b9e8d6}.accent-card strong{color:var(--mint-dark)}
.check-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start}.checklist{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:31px}.checklist h2,.warning h2{font-size:28px;line-height:1.3;margin:0 0 10px}.checklist>p,.warning>p{color:var(--muted)}.steps{list-style:none;padding:0;margin:25px 0 0}.steps li{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:18px 0;border-top:1px solid var(--line)}.step-no{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--mint);font-weight:800}.steps b{display:block;margin-bottom:3px}.steps span{color:var(--muted);font-size:14px}.warning{background:#332923;color:#fff1e7;border-radius:var(--radius);padding:31px}.warning p{color:#d9c5b9}.risk-list{list-style:none;padding:0;margin:23px 0}.risk-list li{padding:12px 0;border-top:1px solid #584942;font-size:14px}.risk-list li:before{content:"×";color:#f0aa74;margin-right:11px;font-weight:900}
.list-section{background:#ecece5}.article-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:38px}.feature-article{background:var(--ink);border-radius:var(--radius);padding:34px;color:#f7fbf8;min-height:300px;display:flex;flex-direction:column}.feature-article h3{font-size:27px;line-height:1.35;margin:22px 0 12px}.feature-article p{color:#b7c8c1}.meta{display:flex;gap:9px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted)}.feature-article .meta{color:#a8b9b2}.tag{display:inline-block;padding:3px 8px;border-radius:20px;background:var(--soft-mint);color:var(--mint-dark);font-weight:800}.feature-article .tag{background:#304a42;color:#a9ebd7}.read-link{margin-top:auto;color:var(--mint);font-weight:800}.news-list{border-top:1px solid var(--line)}.news-row{display:grid;grid-template-columns:90px 1fr 28px;gap:15px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line);transition:.2s}.news-row:hover{padding-left:9px;background:#f5f7f1}.news-row time{font-size:13px;font-weight:800;color:var(--mint-dark)}.news-row h3{font-size:16px;line-height:1.45;margin:6px 0 0}.news-row p{font-size:13px;color:var(--muted);margin:2px 0}.news-row .go{color:var(--mint-dark);font-size:21px}
.faq-wrap{max-width:900px}.faq{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;padding:21px 0;border:0;background:transparent;display:flex;justify-content:space-between;text-align:left;color:var(--ink);font-weight:800;font-size:17px;cursor:pointer}.faq-question span:last-child{color:var(--mint-dark);font-size:23px;transition:.2s}.faq-answer{display:none;padding:0 34px 22px 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)}
.cta{padding:0 0 85px}.cta-box{background:var(--mint);border-radius:var(--radius);padding:39px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-box h2{font-size:30px;line-height:1.3;margin:0}.cta-box p{margin:7px 0 0;color:#255b4d}.cta-box .btn{background:var(--ink);color:#f7fbf8;flex:none}
.site-footer{background:#101614;color:#c0cec8;padding:54px 0 24px}.footer-top{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:38px;padding-bottom:35px;border-bottom:1px solid #33403b}.site-footer .logo{color:#f4faf7}.footer-note{max-width:450px;color:#8fa29a;font-size:13px;margin:17px 0 0}.footer-col{display:flex;flex-direction:column;gap:9px}.footer-col h3{color:#eff8f4;font-size:15px;margin:0 0 7px}.footer-col a{font-size:13px;color:#9bad a4;transition:.2s}.footer-col a:hover{color:var(--mint)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#7f9189;font-size:12px}
@media(max-width:900px){.hero-grid,.check-grid,.article-layout{grid-template-columns:1fr;gap:32px}.quick-grid{grid-template-columns:repeat(2,1fr)}.footer-top{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.container{width:min(calc(100% - 30px),var(--container))}.notice .container{align-items:flex-start}.menu-button{display:block}.nav-links{display:none;position:absolute;left:15px;right:15px;top:68px;padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.hero-grid{padding:57px 0 52px}h1{font-size:36px}.hero-copy{font-size:16px}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:13px}.quick-grid{grid-template-columns:1fr}.intro-grid{grid-template-columns:1fr}.cta-box{display:block;padding:29px 25px}.cta-box h2{font-size:25px}.cta-box .btn{margin-top:20px}.footer-top{grid-template-columns:1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}.news-row{grid-template-columns:72px 1fr 20px;gap:9px}.feature-article{padding:27px}.checklist,.warning{padding:25px}}

/* roulang page: category3 */
:root{--ink:#121817;--ink-2:#1b2422;--paper:#f6f5f0;--surface:#fffefa;--line:#d9ddd5;--muted:#65706c;--mint:#39d5aa;--mint-dark:#0c6d58;--amber:#d89435;--coral:#bb604d;--soft-mint:#e5f8f0;--radius:14px;--shadow:0 16px 38px rgba(17,28,25,.08);--container:1200px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8}
    img{max-width:100%;display:block} a{color:inherit;text-decoration:none} button{font:inherit}
    a:focus-visible,button:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .notice{background:#e8eee8;color:#34423d;font-size:13px;border-bottom:1px solid #d1d9d1}
    .notice .container{padding:9px 0;display:flex;align-items:center;gap:10px}
    .notice strong{color:var(--coral);font-size:12px;white-space:nowrap}
    .site-header{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
    .nav-wrap{min-height:74px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .logo{font-weight:850;letter-spacing:-.04em;font-size:19px;line-height:1.2}
    .logo small{display:block;color:var(--mint-dark);font-size:11px;letter-spacing:.08em;font-weight:700;margin-top:3px}
    .logo-mark{display:inline-flex;align-items:center;justify-content:center;background:var(--mint);width:27px;height:27px;border-radius:8px;margin-right:8px;font-size:14px;color:#10211d}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:#47534f;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--soft-mint);color:#075542}
    .menu-button{display:none;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:8px 11px;color:var(--ink)}
    .page-hero{background:var(--ink);color:#f7fbf8;position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(57,213,170,.18);border-radius:50%;right:-130px;top:-190px;box-shadow:0 0 0 34px rgba(57,213,170,.035),0 0 0 70px rgba(57,213,170,.025)}
    .page-hero .container{position:relative;z-index:1;padding:76px 0 72px}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;color:#9cebd5;font-size:12px;font-weight:800;letter-spacing:.07em}
    .eyebrow:before{content:"";width:21px;height:2px;background:var(--mint)}
    h1{font-size:clamp(36px,5vw,56px);line-height:1.16;letter-spacing:-.055em;max-width:760px;margin:18px 0 18px}
    .hero-intro{color:#c5d2cd;max-width:700px;font-size:17px;margin:0}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:27px}
    .hero-meta span{border:1px solid #40534b;border-radius:30px;padding:5px 12px;color:#b8d1c7;font-size:13px}
    .section{padding:82px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:clamp(27px,3vw,35px);line-height:1.25;letter-spacing:-.04em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:560px;margin:0}
    .label{display:inline-flex;color:var(--mint-dark);font-size:12px;font-weight:800;letter-spacing:.07em}
    .intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
    .intro-copy h2{font-size:32px;line-height:1.3;letter-spacing:-.04em;margin:9px 0 16px}
    .intro-copy p{color:var(--muted);margin:0 0 17px}
    .note-box{background:var(--soft-mint);border-left:4px solid var(--mint-dark);padding:18px 21px;border-radius:0 var(--radius) var(--radius) 0;color:#24493e;font-size:14px}
    .device-stage{min-height:330px;background:#e9eee7;border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
    .device-stage:before,.device-stage:after{content:"";position:absolute;border:1px solid #bfd8cb;border-radius:50%}
    .device-stage:before{width:300px;height:300px}.device-stage:after{width:210px;height:210px}
    .device{position:relative;z-index:1;width:172px;height:285px;border:7px solid var(--ink);border-radius:25px;background:#fbfff9;box-shadow:12px 17px 0 rgba(18,24,23,.12);padding:25px 15px 15px}
    .device-notch{position:absolute;top:7px;left:50%;transform:translateX(-50%);width:62px;height:8px;border-radius:8px;background:var(--ink)}
    .device-header{height:28px;border-bottom:2px solid var(--mint);font-size:11px;font-weight:800}.device-line{height:10px;background:#dce8df;border-radius:8px;margin-top:17px}.device-line.short{width:65%;margin-top:9px}
    .device-panel{height:82px;background:var(--soft-mint);border-radius:10px;margin-top:18px;border:1px solid #c9e7d9}
    .compat{position:absolute;right:24px;top:24px;background:var(--surface);padding:12px 15px;border:1px solid var(--line);border-radius:10px;font-size:12px;box-shadow:var(--shadow)}
    .compat b{display:block;color:var(--mint-dark);font-size:17px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
    .step{background:var(--surface);padding:27px 22px;min-height:215px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:.2s}
    .step:hover{background:#effaf5;transform:translateY(-4px)}
    .step-num{display:flex;width:35px;height:35px;align-items:center;justify-content:center;border-radius:50%;background:var(--ink);color:var(--mint);font-weight:850}
    .step h3{font-size:19px;line-height:1.35;margin:23px 0 9px}.step p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
    .dark-section{background:var(--ink);color:#f7fbf8}
    .dark-section .section-head p{color:#aebfb8}.dark-section .label{color:#9cebd5}
    .security-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .security-card{padding:29px;border-radius:var(--radius);border:1px solid #34453f;background:var(--ink-2);min-height:250px}
    .security-card.warning{border-color:#65493b;background:#28211e}
    .security-card h3{font-size:22px;margin:0 0 13px}.security-card p{color:#b8c8c1;font-size:14px;margin:0 0 14px}
    .security-list{padding:0;margin:0;list-style:none}.security-list li{padding:10px 0;border-top:1px solid #3a4943;font-size:14px;color:#d3ded9}.security-list li:before{content:"✓";color:var(--mint);font-weight:900;margin-right:10px}
    .warning .security-list li:before{content:"!";color:#f0aa74}
    .update-strip{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:20px 24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-top:26px}
    .update-strip strong{display:block;font-size:16px}.update-strip span{color:var(--muted);font-size:13px}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:800;font-size:14px;transition:transform .2s,background .2s,border .2s}
    .btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--mint);color:#10201c}.btn-primary:hover{background:#67e2c0}.btn-ghost{border-color:#577067;color:#edf5f1}.btn-ghost:hover{border-color:var(--mint);color:var(--mint)}
    .faq-wrap{max-width:900px}.faq{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;padding:21px 0;border:0;background:transparent;display:flex;justify-content:space-between;text-align:left;color:var(--ink);font-weight:800;font-size:17px;cursor:pointer}
    .faq-question span:last-child{color:var(--mint-dark);font-size:23px;transition:.2s}.faq-answer{display:none;padding:0 34px 22px 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)}
    .cta{padding:0 0 85px}.cta-box{background:var(--mint);border-radius:var(--radius);padding:39px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-box h2{font-size:30px;line-height:1.3;margin:0}.cta-box p{margin:7px 0 0;color:#255b4d}.cta-box .btn{background:var(--ink);color:#f7fbf8;flex:none}
    .site-footer{background:#101614;color:#c0cec8;padding:54px 0 24px}.footer-top{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:38px;padding-bottom:35px;border-bottom:1px solid #33403b}.site-footer .logo{color:#f4faf6}.site-footer .logo small{color:#8fd9c3}.footer-note{font-size:13px;line-height:1.8;color:#94a69e;max-width:430px;margin:17px 0 0}.footer-col h3{font-size:14px;color:#f2f8f4;margin:0 0 13px}.footer-col a{display:block;color:#9eafa8;font-size:13px;padding:3px 0;transition:.2s}.footer-col a:hover{color:var(--mint)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#74857d;font-size:12px}
    @media(max-width:900px){.nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:13px}.intro-grid,.security-grid{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:767px){.container{width:min(calc(100% - 32px),var(--container))}.notice .container{align-items:flex-start;line-height:1.55;padding:10px 0}.nav-wrap{min-height:68px}.menu-button{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;padding:9px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px}.page-hero .container{padding:58px 0 55px}h1{font-size:35px}.hero-intro{font-size:15px}.section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:12px}.intro-copy h2{font-size:27px}.device-stage{min-height:300px}.compat{right:12px;top:13px}.steps{grid-template-columns:1fr}.step{min-height:auto}.update-strip,.cta-box{display:block;padding:25px}.update-strip .btn{margin-top:17px;width:100%}.cta-box h2{font-size:25px}.cta-box .btn{margin-top:20px;width:100%}.footer-top{grid-template-columns:1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}}
    @media(max-width:520px){.hero-meta span{font-size:12px}.security-card{padding:23px}.page-hero:after{right:-250px}.device{transform:scale(.9)}}

/* roulang page: category2 */
:root{
      --ink:#121817;
      --ink-2:#1b2422;
      --paper:#f6f5f0;
      --surface:#fffefa;
      --line:#d9ddd5;
      --muted:#65706c;
      --mint:#39d5aa;
      --mint-dark:#0c6d58;
      --amber:#d89435;
      --coral:#bb604d;
      --soft-mint:#e5f8f0;
      --soft-amber:#fff1dc;
      --soft-coral:#f8e9e4;
      --radius:14px;
      --shadow:0 16px 38px rgba(17,28,25,.08);
      --container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8}
    img{max-width:100%;height:auto;display:block}
    a{color:inherit;text-decoration:none}
    button{font:inherit}
    a:focus-visible,button:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .notice{background:#eaf3ee;color:#34534a;border-bottom:1px solid #cedfd5;font-size:13px}
    .notice .container{padding:9px 0;display:flex;align-items:center;gap:10px}
    .notice-mark{width:20px;height:20px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--amber);color:#fff;font-size:12px;font-weight:900;flex:none}
    .site-header{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
    .nav-wrap{min-height:74px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .logo{font-weight:850;letter-spacing:-.04em;font-size:19px;line-height:1.2}
    .logo small{display:block;color:var(--mint-dark);font-size:11px;letter-spacing:.08em;font-weight:700;margin-top:3px}
    .logo-mark{display:inline-flex;align-items:center;justify-content:center;background:var(--mint);width:27px;height:27px;border-radius:8px;margin-right:8px;font-size:14px;color:#10211d}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:#47534f;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--soft-mint);color:#075542}
    .menu-button{display:none;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:8px 11px;color:var(--ink);cursor:pointer}
    .hero{background:var(--ink);color:#f7fbf8;position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;right:-90px;bottom:-120px;width:390px;height:390px;border:1px solid rgba(57,213,170,.18);border-radius:50%;box-shadow:0 0 0 34px rgba(57,213,170,.035),0 0 0 70px rgba(57,213,170,.025)}
    .hero-grid{position:relative;z-index:1;padding:76px 0 70px;display:grid;grid-template-columns:1.06fr .94fr;gap:70px;align-items:center}
    .eyebrow,.label{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;letter-spacing:.07em}
    .eyebrow{color:#9cebd5}
    .eyebrow:before{content:"";width:21px;height:2px;background:var(--mint)}
    h1,h2,h3,p{overflow-wrap:anywhere}
    h1{font-size:clamp(36px,4.4vw,54px);line-height:1.18;letter-spacing:-.05em;margin:17px 0 20px;max-width:700px}
    .hero-copy{color:#c5d2cd;font-size:17px;max-width:670px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:800;font-size:14px;transition:transform .2s,background .2s,border .2s,color .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--mint);color:#10201c}
    .btn-primary:hover{background:#6ce6c4;color:#10201c}
    .btn-ghost{border-color:#577067;color:#edf5f1}
    .btn-ghost:hover{border-color:var(--mint);color:var(--mint)}
    .verify-board{border:1px solid #3d514b;background:var(--ink-2);padding:25px;border-radius:var(--radius);box-shadow:var(--shadow)}
    .board-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #35443f;padding-bottom:17px;margin-bottom:3px}
    .board-title{font-weight:850;font-size:17px}
    .board-status{color:#9cebd5;font-size:12px;font-weight:800}
    .signal-row{display:flex;align-items:center;gap:14px;padding:17px 5px;border-bottom:1px solid #2d3c37}
    .signal-row:last-child{border:0}
    .signal-icon{width:28px;height:28px;border:1px solid #53776b;color:var(--mint);border-radius:8px;display:grid;place-items:center;font-weight:900;font-size:13px;flex:none}
    .signal-row b{display:block;font-size:14px}
    .signal-row span{font-size:12px;color:#93a59e}
    .section{padding:86px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-kicker{color:var(--mint-dark);font-size:12px;font-weight:900;letter-spacing:.08em}
    .section-head h2{font-size:clamp(27px,3vw,35px);line-height:1.25;letter-spacing:-.04em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:560px;margin:0}
    .warning-band{background:var(--soft-coral);border-top:1px solid #ead1c9;border-bottom:1px solid #ead1c9}
    .warning-layout{display:grid;grid-template-columns:1fr 1.35fr;gap:45px;align-items:center}
    .warning-layout h2{font-size:31px;line-height:1.3;margin:8px 0 12px}
    .warning-layout p{color:#6d554d;margin:0}
    .warning-points{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .warning-point{background:rgba(255,254,250,.75);border:1px solid #e6d1c8;border-radius:10px;padding:17px 18px}
    .warning-point strong{display:block;font-size:15px;margin-bottom:4px}
    .warning-point span{display:block;color:#79645c;font-size:13px;line-height:1.65}
    .steps-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:50px}
    .step-track{position:relative;padding-left:42px}
    .step-track:before{content:"";position:absolute;left:13px;top:11px;bottom:18px;width:1px;background:#b7d9cc}
    .step-item{position:relative;padding:0 0 29px}
    .step-item:last-child{padding-bottom:0}
    .step-number{position:absolute;left:-42px;top:0;width:28px;height:28px;background:var(--mint);color:#10201c;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:900}
    .step-item h3{font-size:19px;margin:0 0 5px}
    .step-item p{font-size:14px;color:var(--muted);margin:0;max-width:620px}
    .check-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:29px;box-shadow:var(--shadow)}
    .check-panel h3{font-size:22px;margin:0 0 17px}
    .check-list{list-style:none;padding:0;margin:0}
    .check-list li{display:flex;gap:11px;border-top:1px solid var(--line);padding:13px 0;font-size:14px}
    .check-list li:before{content:"✓";width:21px;height:21px;border-radius:50%;background:var(--soft-mint);color:var(--mint-dark);display:grid;place-items:center;font-weight:900;flex:none;font-size:12px}
    .scenario-section{background:#ebece6}
    .scenario-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .scenario-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:25px;min-height:188px;transition:.2s}
    .scenario-card:hover{transform:translateY(-4px);border-color:#a2cdbd;box-shadow:var(--shadow)}
    .scenario-card .tag{margin-bottom:18px}
    .tag{display:inline-block;padding:3px 9px;border-radius:20px;background:var(--soft-mint);color:var(--mint-dark);font-weight:800;font-size:12px}
    .scenario-card h3{font-size:19px;line-height:1.4;margin:0 0 8px}
    .scenario-card p{color:var(--muted);font-size:14px;margin:0}
    .privacy-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:54px;align-items:start}
    .privacy-copy h2{font-size:31px;line-height:1.3;margin:8px 0 13px}
    .privacy-copy p{color:var(--muted)}
    .privacy-note{border-left:3px solid var(--amber);padding:7px 0 7px 18px;color:#6b5b45;font-size:14px}
    .privacy-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .privacy-item{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:19px}
    .privacy-item b{display:block;font-size:15px;margin-bottom:5px}
    .privacy-item span{font-size:13px;color:var(--muted);line-height:1.65}
    .faq-wrap{max-width:900px}
    .faq{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;padding:21px 0;border:0;background:transparent;display:flex;justify-content:space-between;text-align:left;color:var(--ink);font-weight:800;font-size:17px;cursor:pointer}
    .faq-question span:last-child{color:var(--mint-dark);font-size:23px;line-height:1;transition:.2s}
    .faq-answer{display:none;padding:0 34px 22px 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)}
    .cta{padding:0 0 85px}
    .cta-box{background:var(--mint);border-radius:var(--radius);padding:39px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-box h2{font-size:30px;line-height:1.3;margin:0}
    .cta-box p{margin:7px 0 0;color:#255b4d}
    .cta-box .btn{background:var(--ink);color:#f7fbf8;flex:none}
    .cta-box .btn:hover{background:#26332f}
    .site-footer{background:#101614;color:#c0cec8;padding:54px 0 24px}
    .footer-top{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:38px;padding-bottom:35px;border-bottom:1px solid #33403b}
    .site-footer .logo{color:#f5faf7}
    .site-footer .logo small{color:#8edfc8}
    .footer-note{font-size:13px;line-height:1.8;color:#91a39b;max-width:450px;margin:19px 0 0}
    .footer-col{display:flex;flex-direction:column;gap:7px}
    .footer-col h3{font-size:14px;color:#f0f7f3;margin:0 0 9px}
    .footer-col a{font-size:13px;color:#91a39b;transition:.2s}
    .footer-col a:hover{color:var(--mint)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#71817a;font-size:12px}
    .breadcrumb-bar{background:#ebece6;border-bottom:1px solid var(--line)}
    .breadcrumb{margin:0;padding:17px 0;font-size:13px;color:var(--muted)}
    .breadcrumb a{color:var(--mint-dark);font-weight:700}
    @media(max-width:1024px){
      .hero-grid{gap:38px}
      .warning-layout,.steps-layout,.privacy-layout{gap:28px}
      .nav-links a{padding-left:8px;padding-right:8px}
    }
    @media(max-width:767px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .notice .container{align-items:flex-start;padding:9px 0;font-size:12px;line-height:1.6}
      .nav-wrap{min-height:68px}
      .menu-button{display:block}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;padding:9px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px}
      .hero-grid{grid-template-columns:1fr;padding:54px 0 51px;gap:34px}
      h1{font-size:35px}
      .hero-copy{font-size:15px}
      .hero-actions{align-items:stretch;flex-direction:column}
      .hero-actions .btn{width:100%}
      .section{padding:59px 0}
      .section-head{display:block;margin-bottom:24px}
      .section-head p{margin-top:13px;font-size:14px}
      .warning-layout,.steps-layout,.privacy-layout{grid-template-columns:1fr}
      .warning-layout h2,.privacy-copy h2{font-size:27px}
      .warning-points,.privacy-list,.scenario-grid{grid-template-columns:1fr}
      .check-panel{padding:23px}
      .cta{padding-bottom:60px}
      .cta-box{display:block;padding:28px 24px}
      .cta-box h2{font-size:25px}
      .cta-box .btn{width:100%;margin-top:20px}
      .footer-top{grid-template-columns:1fr;gap:28px}
      .footer-bottom{display:block;line-height:1.8}
      .footer-bottom span{display:block;margin-top:5px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }

/* roulang page: category4 */
:root{--ink:#121817;--ink-2:#1b2422;--paper:#f6f5f0;--surface:#fffefa;--line:#d9ddd5;--muted:#65706c;--mint:#39d5aa;--mint-dark:#0c6d58;--amber:#d89435;--coral:#bb604d;--soft-mint:#e5f8f0;--radius:14px;--shadow:0 16px 38px rgba(17,28,25,.08);--container:1200px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8}
    img{max-width:100%;height:auto;display:block}
    a{color:inherit;text-decoration:none}
    button{font:inherit}
    a:focus-visible,button:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .notice{background:#202b27;color:#dce9e3;font-size:13px}
    .notice .container{padding:9px 0;display:flex;align-items:center;gap:10px}
    .notice strong{color:#a9ebd7}
    .notice-mark{width:19px;height:19px;border-radius:50%;display:inline-flex;justify-content:center;align-items:center;background:var(--amber);color:#1e211c;font-weight:900;flex:none}
    .site-header{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}
    .nav-wrap{min-height:74px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .logo{font-weight:850;letter-spacing:-.04em;font-size:19px;line-height:1.2}
    .logo small{display:block;color:var(--mint-dark);font-size:11px;letter-spacing:.08em;font-weight:700;margin-top:3px}
    .logo-mark{display:inline-flex;align-items:center;justify-content:center;background:var(--mint);width:27px;height:27px;border-radius:8px;margin-right:8px;font-size:14px;color:#10211d}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:8px;color:#47534f;font-size:14px;font-weight:700;white-space:nowrap;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--soft-mint);color:#075542}
    .menu-button{display:none;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:8px 11px;color:var(--ink)}
    .hero{background:var(--ink);color:#f7fbf8;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 5%,rgba(57,213,170,.09) 48%,transparent 70%)}
    .hero-grid{position:relative;padding:74px 0 68px;display:grid;grid-template-columns:1fr .84fr;gap:70px;align-items:center}
    .eyebrow,.label{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;letter-spacing:.07em}
    .eyebrow{color:#9cebd5}.eyebrow:before{content:"";width:21px;height:2px;background:var(--mint)}
    h1{font-size:clamp(38px,5vw,58px);line-height:1.16;letter-spacing:-.055em;margin:18px 0 21px}
    .hero-copy{color:#c5d2cd;font-size:17px;max-width:680px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:800;font-size:14px;transition:transform .2s,background .2s,border .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:var(--mint);color:#10201c}.btn-primary:hover{background:#70e7c6}
    .btn-ghost{border-color:#577067;color:#edf5f1}.btn-ghost:hover{border-color:var(--mint);color:var(--mint)}
    .hero-panel{border:1px solid #3a4b45;border-radius:var(--radius);padding:25px;background:#18221f}
    .panel-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid #32413c}
    .panel-top b{font-size:18px}.panel-top span{font-size:12px;color:#9cebd5}
    .signal-list{padding:7px}
    .signal-row{display:flex;align-items:center;gap:14px;padding:15px 9px;border-bottom:1px solid #2d3c37}
    .signal-row:last-child{border:0}.signal-dot{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(57,213,170,.1);flex:none}
    .signal-row b{display:block;font-size:14px}.signal-row span{font-size:12px;color:#93a59e}
    .section{padding:82px 0}.section.alt{background:#eeeee8}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:clamp(27px,3vw,35px);line-height:1.25;letter-spacing:-.04em;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:570px;margin:0}
    .label{color:var(--mint-dark)}
    .news-layout{display:grid;grid-template-columns:.88fr 1.12fr;gap:48px}
    .featured{background:var(--ink);color:#f7fbf8;border-radius:var(--radius);padding:34px;display:flex;flex-direction:column;min-height:365px;position:relative;overflow:hidden}
    .featured:after{content:"资讯";position:absolute;right:-8px;bottom:-30px;color:rgba(57,213,170,.08);font-size:130px;font-weight:900;line-height:1}
    .featured p{color:#b7c8c1;position:relative;z-index:1}.meta{display:flex;gap:9px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted)}
    .featured .meta{color:#a8b9b2}.tag{display:inline-block;padding:3px 8px;border-radius:20px;background:var(--soft-mint);color:var(--mint-dark);font-weight:800}.featured .tag{background:#304a42;color:#a9ebd7}
    .featured h3{font-size:28px;line-height:1.35;margin:22px 0 12px;position:relative;z-index:1}.featured .arrow-link{position:relative;z-index:1}
    .arrow-link{margin-top:auto;color:var(--mint-dark);font-size:14px;font-weight:800}.featured .arrow-link{color:var(--mint)}
    .news-list{border-top:1px solid var(--line)}.news-row{display:grid;grid-template-columns:88px 1fr 28px;gap:15px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line);transition:.2s}
    .news-row:hover{padding-left:10px;background:#f0f4ef}.news-row time{font-size:13px;font-weight:800;color:var(--mint-dark)}.news-row h3{font-size:16px;line-height:1.45;margin:7px 0 0}.news-row p{margin:4px 0 0;color:var(--muted);font-size:13px}.news-row .go{color:var(--mint-dark);font-size:21px}
    .filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}.filter{border:1px solid var(--line);background:var(--surface);border-radius:30px;padding:8px 16px;color:var(--muted);font-weight:700;font-size:13px;cursor:pointer;transition:.2s}.filter:hover,.filter.selected{background:var(--ink);border-color:var(--ink);color:var(--mint)}
    .timeline{position:relative;margin-left:10px;border-left:2px solid #bdd8cd;padding-left:32px}.timeline-item{position:relative;padding:0 0 34px}.timeline-item:last-child{padding-bottom:0}.timeline-item:before{content:"";position:absolute;left:-41px;top:7px;width:15px;height:15px;border:4px solid var(--paper);border-radius:50%;background:var(--mint-dark)}
    .timeline-item time{font-size:12px;color:var(--mint-dark);font-weight:800}.timeline-item h3{font-size:20px;line-height:1.4;margin:5px 0 5px}.timeline-item p{color:var(--muted);margin:0;max-width:780px;font-size:14px}
    .info-band{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.2s}.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#a5d8c7}.info-card .number{font-size:28px;color:var(--mint-dark);font-weight:900}.info-card h3{font-size:18px;margin:8px 0}.info-card p{font-size:14px;color:var(--muted);margin:0}
    .faq-wrap{max-width:900px}.faq{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;padding:21px 0;border:0;background:transparent;display:flex;justify-content:space-between;text-align:left;color:var(--ink);font-weight:800;font-size:17px;cursor:pointer}.faq-question span:last-child{color:var(--mint-dark);font-size:23px;transition:.2s}.faq-answer{display:none;padding:0 34px 22px 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)}
    .cta{padding:0 0 85px}.cta-box{background:var(--mint);border-radius:var(--radius);padding:39px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-box h2{font-size:30px;line-height:1.3;margin:0}.cta-box p{margin:7px 0 0;color:#255b4d}.cta-box .btn{background:var(--ink);color:#f7fbf8;flex:none}
    .site-footer{background:#101614;color:#c0cec8;padding:54px 0 24px}.footer-top{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:38px;padding-bottom:35px;border-bottom:1px solid #33403b}.site-footer .logo{color:#f2f7f3}.site-footer .logo small{color:#8bd9c2}.footer-note{color:#91a19a;font-size:13px;max-width:430px;margin-top:19px}.footer-col h3{color:#f1f6f2;font-size:15px;margin:0 0 12px}.footer-col a{display:block;color:#9aa9a3;font-size:13px;padding:4px 0;transition:.2s}.footer-col a:hover{color:var(--mint)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#75847d;font-size:12px}
    @media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:38px;padding-top:58px}.news-layout{grid-template-columns:1fr;gap:35px}.nav-links{gap:0}.nav-links a{padding-left:8px;padding-right:8px}.footer-top{grid-template-columns:1fr 1fr}.info-band{grid-template-columns:1fr 1fr}}
    @media(max-width:767px){.container{width:min(calc(100% - 32px),var(--container))}.notice .container{align-items:flex-start}.site-header{position:relative}.nav-wrap{min-height:68px}.menu-button{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.hero-grid{padding:50px 0 52px}.hero-copy{font-size:16px}h1{font-size:36px}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:12px}.featured{min-height:320px;padding:27px}.featured h3{font-size:24px}.news-row{grid-template-columns:1fr 24px;gap:8px}.news-row time{grid-column:1/-1}.news-row p{font-size:13px}.info-band{grid-template-columns:1fr}.cta-box{display:block;padding:29px 25px}.cta-box h2{font-size:25px}.cta-box .btn{margin-top:21px;width:100%}.footer-top{grid-template-columns:1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}.filter-bar{margin-bottom:25px}}
    @media(max-width:520px){.logo{font-size:17px}.logo-mark{width:24px;height:24px}.hero-actions .btn{width:100%}.timeline{padding-left:25px}.timeline-item:before{left:-34px}.timeline-item h3{font-size:18px}}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}