/* roulang page: index */
:root{--bg:#0c1014;--panel:#141a20;--panel-soft:#10161c;--text:#edf2f5;--muted:#9aa5b1;--accent:#c5f970;--line:#293139;--radius:20px;--shadow:0 22px 60px #0003}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input{font:inherit}button,a,input,summary{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a,button,input,summary{transition:color .2s,background .2s,border-color .2s,transform .2s,box-shadow .2s}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}::selection{background:var(--accent);color:var(--bg)}.container{width:min(1200px,calc(100% - 64px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:50;background:#0c1014ed;border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}.header-inner{min-height:78px;display:flex;align-items:center;gap:54px}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:38px;height:38px;background:var(--accent);color:var(--bg);font-size:17px;font-weight:900;border-radius:11px;transform:rotate(-5deg)}.brand-name{font-size:23px;font-weight:800;letter-spacing:2px}.brand small{font-size:11px;color:var(--muted);letter-spacing:1px;display:block;line-height:1}.nav{display:flex;align-items:center;gap:30px}.nav a{font-size:14px;color:var(--muted);padding:26px 0;border-bottom:2px solid transparent}.nav a:hover,.nav a.active{color:var(--accent)}.nav a.active{border-color:var(--accent)}.header-note{margin-left:auto;display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted)}.dot{width:6px;height:6px;display:inline-block;flex-shrink:0;border-radius:100%;background:var(--accent);box-shadow:0 0 14px #c5f94055}.menu-button{display:none;padding:8px 13px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--text)}section{padding:88px 0;border-bottom:1px solid var(--line)}.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:2px;color:var(--accent);font-weight:600;margin-bottom:19px}.section-title{font-size:clamp(27px,3.2vw,39px);line-height:1.35;font-weight:700;letter-spacing:-1px}.section-copy{font-size:14px;line-height:1.95;color:var(--muted);max-width:680px;margin-top:20px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;margin-bottom:36px}.index-number{font-size:12px;color:var(--muted);letter-spacing:1px;margin-bottom:14px}.hero{position:relative;isolation:isolate;padding:92px 0 70px;text-align:center;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;z-index:-2;background:url('/assets/images/d2ff4d38df77cf0c.png') center 45%/cover no-repeat;opacity:.18}.hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,#0c101440,#0c1014f7)}.hero .eyebrow{justify-content:center}.hero h1{max-width:900px;margin:0 auto;font-size:clamp(38px,5.5vw,68px);letter-spacing:-2.5px;font-weight:750;line-height:1.2}.hero h1 span{color:var(--accent)}.hero-copy{max-width:790px;margin:27px auto 31px;color:#b7c0c8;line-height:2;font-size:15px}.search-box{max-width:700px;margin:auto;display:flex;align-items:center;gap:14px;padding:8px 8px 8px 22px;background:#171e25;border:1px solid #495346;border-radius:13px;box-shadow:var(--shadow)}.search-box svg{flex-shrink:0;color:var(--accent)}.search-box input{width:100%;min-width:0;background:transparent;border:0;color:var(--text);padding:10px 0;font-size:14px;outline:none}.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #c5f97015}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;background:var(--accent);color:#131a0b;border:1px solid var(--accent);border-radius:9px;font-size:14px;font-weight:700;white-space:nowrap}.button:hover{background:#d7ff9e;transform:translateY(-2px)}.button:active{transform:translateY(1px)}.chip{display:inline-flex;align-items:center;padding:6px 13px;border:1px solid #364039;background:#151c17b8;border-radius:6px;color:#c3cbbb;font-size:12px}.chip:hover{border-color:var(--accent);color:var(--accent)}.hero-bottom{display:flex;justify-content:center;gap:26px;margin-top:35px;color:var(--muted);font-size:12px}.hero-bottom span{display:flex;align-items:center;gap:8px}.surface{background:var(--panel-soft)}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}.calendar-row{padding:25px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:95px 1fr 100px;gap:24px;align-items:center}.calendar-label{font-size:12px;color:var(--accent)}.calendar-row h3{font-size:17px;font-weight:600;margin-bottom:7px}.calendar-row p{color:var(--muted);font-size:13px;max-width:700px}.tag{display:inline-block;font-size:11px;line-height:1.6;padding:4px 9px;border:1px solid #354139;border-radius:5px;color:#c0d1b1;white-space:nowrap}.topic-card{padding:30px;position:relative;overflow:hidden;min-height:245px}.topic-card:after{content:"";width:95px;height:95px;border:1px solid #c5f97015;position:absolute;right:-20px;top:-20px;border-radius:50%}.topic-card h3{font-size:21px;font-weight:650;margin:24px 0 12px}.topic-card p{color:var(--muted);font-size:14px}.topic-card:hover{border-color:#63764a;transform:translateY(-4px);box-shadow:var(--shadow)}.text-link{font-size:13px;color:var(--accent);white-space:nowrap}.text-link:hover{color:#e1ffbb}.feature-image{width:100%;height:350px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);filter:saturate(.7)}.quote{border-left:2px solid var(--accent);padding:4px 0 4px 22px;font-size:22px;line-height:1.7;margin:24px 0;color:#e1e9df}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:80px 1fr 24px;gap:22px;padding:27px 0;border-bottom:1px solid var(--line)}.news-item:hover h3{color:var(--accent)}.news-item:hover .arrow{transform:translate(3px,-3px)}.news-item h3{font-size:18px;line-height:1.6;font-weight:600;transition:color .2s}.news-item p{margin-top:9px;color:var(--muted);font-size:13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.news-date{color:var(--muted);font-size:11px;padding-top:7px;overflow-wrap:anywhere}.arrow{color:var(--accent);transition:transform .2s}.aside-note{padding:28px;height:fit-content;position:sticky;top:110px}.aside-note h3{font-size:19px;font-weight:600;margin:17px 0}.aside-note p{font-size:13px;color:var(--muted)}.mini-rule{height:1px;background:var(--line);margin:25px 0}.empty-state{padding:38px 22px;color:var(--muted);border:1px dashed var(--line);border-radius:12px;font-size:14px}.media-card{overflow:hidden}.image-wrap{overflow:hidden;position:relative}.image-wrap img{width:100%;height:245px;object-fit:cover;transition:transform .6s;filter:saturate(.7)}.media-card:hover img{transform:scale(1.035)}.image-wrap:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent,#10161c55)}.media-body{padding:26px}.media-body h3{font-size:21px;font-weight:600;margin:12px 0}.media-body p{font-size:14px;color:var(--muted)}.analysis-bar{height:5px;background:#2a333b;border-radius:4px;overflow:hidden;margin-top:16px}.analysis-bar span{display:block;height:100%;background:var(--accent);border-radius:4px}.device-card{padding:28px;border-top:2px solid #4e5b42;background:var(--panel-soft)}.device-card h3{font-size:18px;font-weight:650;margin:18px 0 12px}.device-card p{font-size:14px;color:var(--muted)}.device-icon{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:2px}.security-list li{padding:19px 0;display:flex;gap:15px;border-bottom:1px solid var(--line)}.security-list strong{font-size:16px;font-weight:600;display:block;margin-bottom:7px}.security-list p{font-size:13px;color:var(--muted)}.check{color:var(--accent);font-size:18px}.security-emblem{width:140px;height:160px;border:1px solid #566647;border-radius:60px 60px 65px 65px;display:grid;place-items:center;margin:0 auto 27px;background:#c5f97007;color:var(--accent);font-size:45px;box-shadow:inset 0 0 45px #c5f97008}.faq details{border-top:1px solid var(--line);padding:23px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{font-size:16px;font-weight:600;list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"＋";color:var(--accent);font-weight:400}.faq details[open] summary:after{content:"－"}.faq details p{font-size:14px;line-height:1.95;color:var(--muted);padding-top:16px;max-width:800px}.subscribe{background:#c5f970;color:#14200b}.subscribe .section-copy{color:#425235}.preference{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.preference label{display:flex;align-items:center;gap:8px;font-size:13px;padding:8px 12px;border:1px solid #708c4c;border-radius:6px;cursor:pointer}.preference input{accent-color:#14200b;width:15px;height:15px}.subscribe .button{color:var(--accent);background:var(--bg);border-color:var(--bg)}.subscribe .button:hover{background:#25311c}.status{font-size:12px;min-height:22px;margin-top:12px;color:#344a23}.site-footer{padding:46px 0 25px;background:#090d10}.footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:36px}.footer-copy{max-width:480px;font-size:12px;color:var(--muted);margin-top:20px}.footer-links{display:flex;gap:25px;align-items:flex-start;padding-top:10px;font-size:13px;color:var(--muted)}.footer-links a:hover{color:var(--accent)}.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:16px;font-size:11px;color:#7f8a94}.search-message{font-size:13px;color:var(--accent);margin-bottom:18px}.hidden{display:none!important}
@media(min-width:1025px){.topic-card{transition:transform .25s,border-color .25s,box-shadow .25s}}
@media(max-width:1024px){.container{width:calc(100% - 48px)}.header-inner{gap:32px}.hero{padding-top:76px}.header-note{display:none}.feature-image{height:310px}section{padding:65px 0}.section-head{gap:25px}.topic-card{padding:24px}.nav{margin-left:auto}}
@media(max-width:768px){.container{width:calc(100% - 36px)}.header-inner{min-height:70px;flex-wrap:wrap;gap:0;justify-content:space-between}.menu-button{display:block}.nav{display:none;width:100%;padding:5px 0 16px;gap:25px}.nav.is-open{display:flex}.nav a{padding:10px 0}.hero{padding:62px 0 48px}.hero h1{letter-spacing:-1px}.hero-copy{font-size:14px;text-align:left}.hero-bottom{gap:15px;flex-wrap:wrap}.section-head{display:block}.section-head>.text-link{display:inline-block;margin-top:20px}.calendar-row{grid-template-columns:70px 1fr;gap:15px}.calendar-row>.tag{display:none}.feature-image{height:300px}.aside-note{position:static}.footer-top{flex-direction:column;gap:20px}.footer-bottom{flex-direction:column;gap:7px}.news-item{grid-template-columns:65px 1fr 18px;gap:14px}.security-emblem{width:110px;height:125px}}
@media(max-width:520px){section{padding:49px 0}.hero h1{font-size:36px}.hero .eyebrow{letter-spacing:1px;font-size:11px}.search-box{padding-left:13px;gap:10px}.search-box .button{padding:11px 15px}.search-box input{font-size:13px}.hero-bottom{font-size:11px}.calendar-row{grid-template-columns:1fr;gap:7px}.calendar-row h3{font-size:16px}.section-title{font-size:28px}.topic-card{min-height:auto}.feature-image{height:235px}.image-wrap img{height:215px}.news-item{grid-template-columns:1fr 18px}.news-date{grid-column:1/-1;padding:0}.news-item h3{font-size:17px}.quote{font-size:20px}.footer-links{flex-wrap:wrap;gap:18px}.subscribe .button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang page: article */
:root{--bg:#0c1014;--panel:#141a20;--panel-soft:#10161c;--text:#edf2f5;--muted:#9aa5b1;--accent:#c5f970;--line:#293139;--radius:20px;--shadow:0 22px 60px #0003}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:95px}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button,a,input,summary{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
a,button,input,summary{transition:color .2s,background .2s,border-color .2s,transform .2s,box-shadow .2s}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
.container{width:min(1200px,calc(100% - 64px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:#0c1014ed;border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
.header-inner{min-height:78px;display:flex;align-items:center;gap:54px}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;background:var(--accent);color:var(--bg);font-size:17px;font-weight:900;border-radius:11px;transform:rotate(-5deg)}
.brand-name{font-size:23px;font-weight:800;letter-spacing:2px}
.brand small{font-size:11px;color:var(--muted);letter-spacing:1px;display:block;line-height:1}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:14px;color:var(--muted);padding:26px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a.active{color:var(--accent)}
.nav a.active{border-color:var(--accent)}
.header-note{margin-left:auto;display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted)}
.status-dot{width:6px;height:6px;display:inline-block;border-radius:50%;background:var(--accent);box-shadow:0 0 12px #c5f97033}
.menu-button{display:none;padding:8px 13px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--text)}
section{padding:76px 0;border-bottom:1px solid var(--line)}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:2px;color:var(--accent);font-weight:600;margin-bottom:19px}
.section-title{font-size:clamp(26px,3vw,36px);line-height:1.4;font-weight:700;letter-spacing:-1px}
.section-copy{font-size:14px;line-height:1.95;color:var(--muted);max-width:680px;margin-top:20px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;background:var(--accent);color:#131a0b;border:1px solid var(--accent);border-radius:9px;font-size:14px;font-weight:700;white-space:nowrap}
.button:hover{background:#d7ff9e;transform:translateY(-2px)}
.button:active{transform:translateY(1px)}
.button-secondary{background:transparent;color:var(--text);border-color:var(--line)}
.button-secondary:hover{background:var(--panel);border-color:var(--accent);color:var(--accent)}
.tag{display:inline-block;font-size:11px;line-height:1.6;padding:4px 9px;border:1px solid #354139;border-radius:5px;color:#c0d1b1}
.text-link{font-size:13px;color:var(--accent)}
.text-link:hover{color:#e1ffbb}
.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding-top:30px;font-size:12px;color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.article-hero{padding:48px 0 44px;border-bottom:0}
.article-hero h1{font-size:clamp(32px,4.5vw,56px);font-weight:750;line-height:1.3;letter-spacing:-1.6px;max-width:1000px;overflow-wrap:anywhere}
.article-summary{font-size:16px;line-height:2;color:#b7c0c8;max-width:860px;margin-top:26px;overflow-wrap:anywhere}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px 22px;color:var(--muted);font-size:12px;margin-top:30px}
.article-meta time{font-variant-numeric:tabular-nums}
.cover-section{padding:0 0 45px}
.article-cover{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--panel)}
.article-cover img{width:100%;height:clamp(240px,35vw,450px);object-fit:cover;filter:saturate(.65);transition:transform .8s}
.article-cover:hover img{transform:scale(1.018)}
.article-cover:after{content:"";position:absolute;inset:40% 0 0;background:linear-gradient(transparent,#0c1014df);pointer-events:none}
.cover-caption{position:absolute;bottom:27px;left:30px;right:30px;z-index:1;display:flex;justify-content:space-between;align-items:center;font-size:12px;letter-spacing:2px;color:#e2e8df}
.cover-caption strong{font-size:22px;letter-spacing:3px}
.article-layout{display:grid;grid-template-columns:minmax(0,800px) minmax(0,260px);gap:64px;align-items:start}
.reading-section{padding:56px 0 72px}
.article-content{font-size:16px;line-height:2.1;color:#c5cdd4;overflow-wrap:anywhere}
.article-content>*:first-child{margin-top:0}
.article-content p{margin:0 0 24px}
.article-content h2{color:var(--text);font-size:28px;font-weight:700;line-height:1.5;margin:42px 0 20px;letter-spacing:-.5px}
.article-content h3{color:var(--text);font-size:21px;font-weight:650;line-height:1.5;margin:30px 0 15px}
.article-content h4{color:var(--text);font-size:18px;font-weight:650;margin:24px 0 12px}
.article-content a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.article-content a:hover{color:#e1ffbb}
.article-content ul,.article-content ol{padding-left:24px;margin:20px 0 28px}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{padding-left:5px;margin:8px 0}
.article-content strong{font-weight:650;color:var(--text)}
.article-content blockquote{margin:28px 0;padding:22px 26px;background:var(--panel-soft);border-left:3px solid var(--accent);border-radius:0 12px 12px 0}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:14px;margin:28px auto;max-width:100%}
.article-content figure{margin:28px 0}
.article-content figcaption{font-size:12px;color:var(--muted);text-align:center}
.article-content pre{padding:20px;overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--panel-soft);font-size:13px}
.article-content table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:14px;margin:24px 0}
.article-content th,.article-content td{border:1px solid var(--line);padding:12px 16px;text-align:left;min-width:100px}
.article-content th{background:var(--panel);color:var(--text)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:35px 0}
.side-note{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:26px;position:sticky;top:110px}
.side-note h2{font-size:17px;font-weight:650;margin:20px 0 12px}
.side-note p{font-size:13px;color:var(--muted);line-height:1.95}
.side-note .note-bottom{margin-top:25px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:#c1cbb9}
.notice-section{background:var(--panel-soft)}
.notice-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
.security-list{list-style:none;padding:0;margin:0}
.security-list li{padding:20px 0;display:flex;gap:18px;border-bottom:1px solid var(--line)}
.security-list li:first-child{padding-top:0}
.security-list strong{font-size:16px;font-weight:600;display:block;margin-bottom:7px}
.security-list p{font-size:13px;color:var(--muted);line-height:1.9}
.list-number{color:var(--accent);font-size:12px;padding-top:4px;font-variant-numeric:tabular-nums}
.faq details{border-top:1px solid var(--line);padding:23px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;list-style:none;font-size:16px;font-weight:600}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--accent);font-size:23px;font-weight:400}
.faq details[open] summary:after{content:"−"}
.faq summary:hover{color:var(--accent)}
.faq details p{padding-top:15px;padding-right:30px;color:var(--muted);font-size:14px;line-height:2}
.cta-section{padding:44px 0;background:var(--panel-soft)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-inner h2{font-size:23px;font-weight:650}
.cta-inner p{font-size:13px;color:var(--muted);margin-top:9px}
.site-footer{padding:55px 0 24px;background:#090d10}
.footer-top{display:flex;justify-content:space-between;gap:70px;padding-bottom:40px}
.footer-copy{max-width:550px;margin-top:22px;font-size:13px;color:var(--muted);line-height:1.95}
.footer-links{display:flex;flex-wrap:wrap;gap:25px;align-content:flex-start;padding-top:9px;font-size:13px;color:var(--muted)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}
.empty-state{min-height:55vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:70px 24px;gap:28px}
.empty-state h1{font-size:clamp(30px,5vw,48px);font-weight:700}
@media(min-width:1025px){.article-hero h1{max-width:88%}}
@media(max-width:1024px){.header-inner{gap:30px}.header-note{font-size:11px}.article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:35px}.notice-grid{gap:35px}.footer-top{gap:35px}.footer-links{max-width:250px}}
@media(max-width:768px){.container{width:calc(100% - 40px)}.header-inner{min-height:72px;gap:20px;flex-wrap:wrap}.header-note{display:none}.menu-button{display:block;margin-left:auto}.nav{display:none;width:100%;gap:26px;padding-bottom:12px}.nav.is-open{display:flex}.nav a{padding:10px 0}.article-hero{padding-top:35px}.article-hero h1{letter-spacing:-.8px}.article-summary{font-size:15px}.article-layout{grid-template-columns:1fr}.side-note{position:static;display:none}.reading-section{padding:38px 0 50px}.notice-grid{grid-template-columns:1fr;gap:30px}section{padding:52px 0}.article-content h2{font-size:25px}.footer-top{flex-direction:column;gap:25px}.footer-links{max-width:none}.footer-bottom{flex-direction:column;gap:7px}.cta-inner{align-items:flex-start;flex-direction:column}.cover-section{padding-bottom:30px}}
@media(max-width:520px){.container{width:calc(100% - 32px)}.brand-name{font-size:21px}.brand-mark{width:34px;height:34px}.brand small{font-size:10px}.breadcrumb{font-size:11px;gap:8px;padding-top:24px}.article-hero h1{font-size:31px}.article-summary{line-height:1.9}.article-meta{gap:10px 15px}.article-cover img{height:235px}.cover-caption{bottom:20px;left:20px;right:20px;letter-spacing:1px}.cover-caption strong{font-size:19px}.cover-caption span{font-size:10px}.article-content{font-size:15px}.article-content h2{font-size:23px}.article-content blockquote{padding:18px}.section-title{font-size:27px}.faq summary{font-size:15px}.footer-links{gap:18px}.cta-inner .button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{--bg:#0c1014;--panel:#141a20;--panel-soft:#10161c;--text:#edf2f5;--muted:#9aa5b1;--accent:#c5f970;--line:#293139;--radius:20px;--shadow:0 22px 60px #0003}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:100px}
    body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button,a,input,summary{-webkit-tap-highlight-color:transparent}
    button{cursor:pointer}
    a,button,input,summary{transition:color .2s,background .2s,border-color .2s,transform .2s,box-shadow .2s}
    a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
    ::selection{background:var(--accent);color:var(--bg)}
    .container{width:min(1200px,calc(100% - 64px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:50;background:#0c1014ed;border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:54px}
    .brand{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .brand-mark{display:grid;place-items:center;width:38px;height:38px;background:var(--accent);color:var(--bg);font-size:17px;font-weight:900;border-radius:11px;transform:rotate(-5deg)}
    .brand-name{font-size:23px;font-weight:800;letter-spacing:2px}
    .brand small{font-size:11px;color:var(--muted);letter-spacing:1px;display:block;line-height:1}
    .nav{display:flex;align-items:center;gap:30px}
    .nav a{font-size:14px;color:var(--muted);padding:26px 0;border-bottom:2px solid transparent}
    .nav a:hover,.nav a.active{color:var(--accent)}
    .nav a.active{border-color:var(--accent)}
    .header-note{margin-left:auto;display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted)}
    .status-dot{width:6px;height:6px;display:inline-block;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px #c5f9700d;flex-shrink:0}
    .menu-button{display:none;padding:8px 13px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--text)}
    .menu-button:hover{border-color:var(--accent);color:var(--accent)}
    main{overflow:hidden}
    section{padding:88px 0;border-bottom:1px solid var(--line)}
    .eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:2px;color:var(--accent);font-weight:600;margin-bottom:19px}
    .section-title{font-size:clamp(27px,3.2vw,39px);line-height:1.35;font-weight:700;letter-spacing:-1px}
    .section-copy{font-size:14px;line-height:1.95;color:var(--muted);max-width:680px;margin-top:20px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;margin-bottom:36px}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;background:var(--accent);color:#131a0b;border:1px solid var(--accent);border-radius:9px;font-size:14px;font-weight:700;white-space:nowrap}
    .button:hover{background:#d7ff9e;transform:translateY(-2px);box-shadow:0 8px 30px #c5f97012}
    .button:active{transform:translateY(1px)}
    .button.secondary{background:transparent;border-color:#45503e;color:var(--text)}
    .button.secondary:hover{border-color:var(--accent);background:#c5f97008}
    .chip{display:inline-flex;align-items:center;padding:6px 13px;border:1px solid #364039;background:#151c17b8;border-radius:6px;color:#c3cbbb;font-size:12px}
    .tag{display:inline-block;font-size:11px;line-height:1.6;padding:4px 9px;border:1px solid #354139;border-radius:5px;color:#c0d1b1;white-space:nowrap}
    .text-link{font-size:13px;color:var(--accent);white-space:nowrap}
    .text-link:hover{color:#e1ffbb}
    .card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);transition:transform .25s,border-color .25s,box-shadow .25s}
    .card:hover{border-color:#526144;box-shadow:var(--shadow)}
    .topic-card{padding:29px;position:relative;overflow:hidden;min-height:235px}
    .topic-card:after{content:"";width:95px;height:95px;border:1px solid #c5f97015;position:absolute;right:-20px;top:-20px;border-radius:50%}
    .topic-card h3{font-size:20px;font-weight:650;margin:24px 0 12px}
    .topic-card p{color:var(--muted);font-size:14px}
    .topic-card:hover{transform:translateY(-4px)}
    .hero{position:relative;isolation:isolate;padding:35px 0 60px}
    .breadcrumb{display:flex;gap:12px;align-items:center;font-size:12px;color:var(--muted);margin-bottom:46px}
    .breadcrumb a:hover{color:var(--accent)}
    .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:70px}
    .hero h1{font-size:clamp(36px,4.5vw,58px);line-height:1.22;font-weight:750;letter-spacing:-2px;margin:0}
    .hero h1 span{display:block;color:var(--accent);margin-top:12px}
    .hero-copy{max-width:580px;margin:25px 0 28px;color:#b7c0c8;line-height:2;font-size:15px}
    .hero-checks{display:flex;flex-wrap:wrap;gap:10px 20px;margin-bottom:32px;font-size:12px;color:#c1cab8}
    .hero-checks b{color:var(--accent);margin-right:6px;font-weight:500}
    .hero-actions{display:flex;align-items:center;gap:15px;flex-wrap:wrap}
    .hero-note{font-size:12px;color:var(--muted);margin-top:20px}
    .hero-visual{position:relative;padding:12px;border:1px solid var(--line);border-radius:24px;background:var(--panel-soft)}
    .image-wrap{overflow:hidden;position:relative;border-radius:14px}
    .image-wrap img{width:100%;height:305px;object-fit:cover;filter:saturate(.55) brightness(.65);transition:transform .6s}
    .hero-visual:hover img{transform:scale(1.025)}
    .image-wrap:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#0c1014d9,transparent 70%);pointer-events:none}
    .image-caption{position:absolute;bottom:24px;left:23px;right:23px;z-index:1}
    .image-caption strong{font-size:23px;font-weight:650;display:block;margin-top:12px}
    .visual-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 12px 10px}
    .visual-bottom p{color:var(--muted);font-size:12px}
    .visual-bottom strong{display:block;color:var(--text);font-weight:500;font-size:14px;margin-bottom:3px}
    .visual-symbol{width:40px;height:40px;border:1px solid #4c5c3e;border-radius:50%;display:grid;place-items:center;color:var(--accent);font-size:19px;flex-shrink:0}
    .alternate{background:var(--panel-soft)}
    .matrix-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .card-number{color:var(--accent);font-size:12px;letter-spacing:2px}
    .standards-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px}
    .standards-intro{align-self:start;position:sticky;top:120px}
    .standards-intro .section-copy{max-width:350px}
    .standard-row{display:grid;grid-template-columns:40px 1fr;gap:20px;border-top:1px solid var(--line);padding:25px 0}
    .standard-row:last-child{border-bottom:1px solid var(--line)}
    .standard-row .number{color:var(--accent);font-size:13px;padding-top:4px}
    .standard-row h3{font-size:18px;font-weight:600;margin-bottom:9px}
    .standard-row p{font-size:14px;color:var(--muted)}
    .notice{border-left:2px solid var(--accent);padding:4px 0 4px 18px;margin-top:30px;font-size:13px;color:#bac5b4}
    .scenario-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .scenario-card{padding:32px 34px;display:flex;gap:24px;align-items:flex-start}
    .scenario-icon{width:43px;height:43px;border-radius:12px;background:#c5f9700c;border:1px solid #c5f97024;color:var(--accent);display:grid;place-items:center;flex-shrink:0}
    .scenario-icon svg{width:21px;height:21px}
    .scenario-card h3{font-size:20px;font-weight:600;margin-bottom:12px}
    .scenario-card p{font-size:14px;color:var(--muted)}
    .scenario-card .tag{margin-top:20px}
    .security-band{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
    .security-display{padding:40px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
    .security-display .large-symbol{color:var(--accent);margin-bottom:30px}
    .security-display h3{font-size:29px;font-weight:650;line-height:1.45;letter-spacing:-.5px}
    .security-display p{font-size:14px;color:var(--muted);margin:18px 0 25px}
    .privacy-tags{display:flex;gap:8px;flex-wrap:wrap}
    .security-list{list-style:none;padding:0;margin:24px 0 0}
    .security-list li{padding:20px 0;display:flex;gap:15px;border-bottom:1px solid var(--line)}
    .security-list strong{font-size:16px;font-weight:600;display:block;margin-bottom:7px}
    .security-list p{font-size:13px;color:var(--muted)}
    .security-list .check{color:var(--accent);font-size:16px}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:90px}
    .faq details{border-top:1px solid var(--line);padding:23px 0}
    .faq details:last-child{border-bottom:1px solid var(--line)}
    .faq summary{display:flex;justify-content:space-between;align-items:center;gap:25px;cursor:pointer;list-style:none;font-weight:600;font-size:16px}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";color:var(--accent);font-size:23px;font-weight:400;flex-shrink:0}
    .faq details[open] summary:after{content:"−"}
    .faq summary:hover{color:var(--accent)}
    .faq details p{font-size:14px;color:var(--muted);line-height:1.95;margin-top:17px;padding-right:30px}
    .cta-section{padding:56px 0;background:var(--panel-soft)}
    .cta-panel{display:flex;align-items:center;justify-content:space-between;gap:45px;padding:36px 42px;border:1px solid #3b4733;border-radius:var(--radius);background:#151c17}
    .cta-panel h2{font-size:27px;font-weight:650;line-height:1.4}
    .cta-panel p{font-size:14px;color:var(--muted);margin-top:12px;max-width:690px}
    .site-footer{padding:58px 0 24px;background:var(--bg)}
    .footer-top{display:grid;grid-template-columns:1fr auto;gap:65px;padding-bottom:42px}
    .footer-copy{font-size:13px;line-height:1.9;color:var(--muted);max-width:540px;margin-top:22px}
    .footer-links{display:flex;align-items:flex-start;gap:28px;padding-top:10px;font-size:13px;color:var(--muted)}
    .footer-links a:hover{color:var(--accent)}
    .footer-bottom{display:flex;justify-content:space-between;gap:24px;padding-top:24px;border-top:1px solid var(--line);color:var(--muted);font-size:11px}
    @media(min-width:1025px){.nav{display:flex!important}}
    @media(max-width:1024px){
      .header-inner{gap:32px}.header-note{font-size:11px}
      .hero-grid{gap:36px}.hero h1{font-size:44px}.image-wrap img{height:290px}
      .matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .standards-layout,.faq-layout{gap:50px}
      .security-band{gap:35px}.security-display{padding:30px}
      .footer-top{gap:30px}.footer-links{gap:20px}
    }
    @media(max-width:768px){
      .container{width:calc(100% - 40px)}
      .header-inner{min-height:72px;gap:20px;flex-wrap:wrap}
      .header-note{display:none}.menu-button{display:block;margin-left:auto}
      .nav{display:none;flex-basis:100%;order:3;gap:26px;border-top:1px solid var(--line)}
      .nav.is-open{display:flex}.nav a{padding:15px 0}
      section{padding:62px 0}.hero{padding:25px 0 50px}
      .breadcrumb{margin-bottom:32px}.hero-grid{grid-template-columns:1fr;gap:36px}
      .hero h1{font-size:43px}.hero-copy{max-width:none}
      .hero-visual{max-width:100%}.image-wrap img{height:280px}
      .section-head{align-items:flex-start;flex-direction:column;gap:15px;margin-bottom:28px}
      .standards-layout,.faq-layout,.security-band{grid-template-columns:1fr;gap:32px}
      .standards-intro{position:static}.standards-intro .section-copy{max-width:none}
      .scenario-layout{grid-template-columns:1fr}.scenario-card{padding:27px}
      .security-display{padding:32px}.cta-panel{align-items:flex-start;flex-direction:column;gap:25px;padding:30px}
      .footer-top{grid-template-columns:1fr;gap:25px}.footer-links{flex-wrap:wrap;padding-top:0}
      .footer-bottom{flex-direction:column;gap:10px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}
      .brand-name{font-size:21px}.brand-mark{width:35px;height:35px}
      .brand small{font-size:10px}
      .hero h1{font-size:36px;letter-spacing:-1px}.hero-copy{font-size:14px}
      .hero-checks{gap:8px 13px;font-size:11px}.hero-actions .button{padding:12px 17px}
      .image-wrap img{height:245px}.image-caption strong{font-size:21px}
      .matrix-grid{grid-template-columns:1fr}.topic-card{min-height:0;padding:25px}
      .topic-card h3{margin-top:18px}
      .standard-row{grid-template-columns:28px 1fr;gap:12px}
      .section-title{font-size:28px}.scenario-card{gap:16px;padding:23px}
      .scenario-icon{width:35px;height:35px;border-radius:9px}
      .scenario-card h3{font-size:18px}
      .security-display{padding:25px}.security-display h3{font-size:26px}
      .faq summary{font-size:15px;gap:15px}.faq details p{padding-right:0}
      .cta-panel{padding:25px}.cta-panel h2{font-size:24px}
      .footer-links{gap:18px 25px}
    }
    @media(prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}
    }