/* roulang page: index */
:root{--bg:#f4f6f4;--surface:#fff;--ink:#153237;--muted:#637575;--line:#dce5e0;--brand:#17675b;--brand-dark:#0d4c43;--mint:#d9eee3;--accent:#d5ef8b;--dark:#102d32;--radius:22px;--small:13px;--shadow:0 16px 45px #173c3210;--space:82px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:115px}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input{font:inherit}button{cursor:pointer}button,a,summary{touch-action:manipulation;-webkit-tap-highlight-color:transparent}a,button,summary{transition:color .2s,background .2s,transform .2s,box-shadow .2s}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #a0bb52;outline-offset:5px}a:active,button:active{transform:translateY(1px)}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.3;letter-spacing:-.035em}h1{font-size:clamp(38px,5.6vw,76px);font-weight:750}h2{font-size:clamp(26px,3vw,39px)}h3{font-size:20px}p{color:var(--muted)}.container{width:min(1180px,calc(100% - 64px));margin-inline:auto}.site-header{position:sticky;top:16px;z-index:40;height:88px;padding-top:12px;pointer-events:none}.dock{min-height:70px;max-width:1080px;margin:auto;padding:10px 15px 10px 20px;display:flex;align-items:center;gap:32px;border:1px solid #ffffffa6;border-radius:50px;background:#ffffffed;box-shadow:0 10px 35px #123d3020;backdrop-filter:blur(20px);pointer-events:auto}.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;white-space:nowrap}.brand-icon{display:grid;place-items:center;width:40px;height:40px;background:var(--brand);color:#fff;border-radius:50%;font-size:17px}.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}.nav-links a{font-size:14px;padding:9px 19px;border-radius:30px;color:var(--muted);font-weight:600}.nav-links a:hover,.nav-links a.active{background:var(--mint);color:var(--brand-dark)}.nav-note{padding:6px 15px;border-left:1px solid var(--line);font-size:12px;color:var(--brand);white-space:nowrap}.menu-toggle{display:none;border:0;background:var(--mint);border-radius:30px;padding:9px 14px;color:var(--brand)}main{overflow:hidden}section{padding:var(--space) 0;border-bottom:1px solid var(--line)}.eyebrow{font-size:13px;font-weight:700;letter-spacing:.13em;display:block;margin-bottom:18px;color:var(--brand)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:45px;margin-bottom:34px}.section-head>div{max-width:590px}.section-head p{max-width:510px;font-size:15px;margin-top:19px}.badge{display:inline-flex;align-items:center;gap:7px;padding:4px 12px;border-radius:30px;font-size:12px;line-height:1.8;background:var(--mint);color:var(--brand-dark);font-weight:600}.badge:before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}.btn{display:inline-flex;justify-content:center;align-items:center;gap:24px;padding:13px 23px;border-radius:40px;background:var(--brand);color:#fff;font-size:14px;font-weight:650;border:1px solid transparent;line-height:1.6;white-space:nowrap}.btn:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 20px #153b3920}.btn-light{background:var(--accent);color:var(--dark)}.btn-light:hover{background:#e6f5bc}.text-link{font-size:14px;white-space:nowrap;border-bottom:1px solid var(--brand);padding-bottom:4px;color:var(--brand)}.text-link:hover{color:var(--ink)}.hero{padding:28px 0 64px;border:0}.hero-stage{position:relative;min-height:670px;isolation:isolate;border-radius:32px;background:var(--dark);color:#fff;overflow:hidden;display:flex;align-items:flex-end;padding:65px}.hero-stage:before{content:"";position:absolute;inset:0;z-index:-2;background:url('/assets/images/073eebe36c402e03.jpg') center/cover no-repeat;opacity:.42}.hero-stage:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#092b30f2 0%,#0c2d32dc 40%,#122c3030 100%)}.hero-content{max-width:680px;z-index:2}.hero .eyebrow{color:var(--accent)}.hero h1 span{color:var(--accent);display:block}.hero p{margin:25px 0 28px;max-width:610px;font-size:16px;color:#d2e1dd}.hero-bottom{display:flex;align-items:center;gap:22px}.hero-bottom small{font-size:12px;color:#c5d6d1}.poster{position:absolute;right:46px;top:40px;width:215px;height:382px;border-radius:19px;overflow:hidden;transform:rotate(7deg);border:1px solid #ffffff4d;box-shadow:0 24px 50px #0004}.poster img{height:100%;width:100%;object-fit:cover}.poster:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 30%,#102d32df)}.poster-caption{position:absolute;bottom:22px;left:20px;right:20px;z-index:1}.poster-caption strong{font-size:25px;display:block}.poster-caption span{font-size:12px;color:#d5e7e0}.hero-index{position:absolute;top:35px;left:40px;font-size:12px;letter-spacing:.15em;color:#c5d8d0}.channel{padding-top:34px}.channel-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:55px;align-items:center}.channel p{margin-top:17px}.channel-link{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;justify-content:space-between;gap:20px;align-items:center;box-shadow:var(--shadow)}.channel-link:hover{border-color:var(--brand);transform:translateY(-3px)}.channel-link small{display:block;color:var(--muted);margin-top:10px;line-height:1.7}.arrow{display:grid;place-items:center;background:var(--mint);border-radius:50%;width:46px;height:46px;flex-shrink:0}.featured{background:#fff}.feature-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px}.feature-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg)}.image-wrap{height:245px;overflow:hidden;position:relative}.image-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.feature-card:hover img{transform:scale(1.035)}.image-wrap:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 60%,#102d3226)}.feature-copy{padding:27px 30px}.feature-copy h3{margin:12px 0}.feature-copy p{font-size:14px}.news{background:var(--bg)}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;min-width:0}.news-card a{display:flex;flex-direction:column;height:100%;padding:26px}.news-card:hover{border-color:#9fbfb0;box-shadow:var(--shadow)}.news-meta{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-bottom:20px}.news-meta span{color:var(--brand)}.news-card h3{font-size:18px;overflow-wrap:anywhere}.news-card p{font-size:14px;margin:13px 0 24px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}.read{font-size:13px;color:var(--brand);margin-top:auto}.empty-state{grid-column:1/-1;padding:40px;border:1px dashed #aebfb6;border-radius:18px;background:#ffffff80;color:var(--muted)}.rank-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.rank-intro p{margin-top:23px}.rank-note{font-size:12px;color:var(--muted);margin-top:25px;border-left:2px solid var(--brand);padding-left:15px}.rank-list{list-style:none;padding:0;margin:0}.rank-list li{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:17px;padding:23px 0;border-bottom:1px solid var(--line)}.rank-list li:first-child{padding-top:0}.rank-number{font-size:26px;font-weight:750;color:#89a49b;font-variant-numeric:tabular-nums}.rank-list h3{font-size:18px}.rank-list p{font-size:13px;margin-top:7px}.rank-tag{font-size:11px;color:var(--brand);border:1px solid #bdd0c5;border-radius:5px;padding:2px 7px;white-space:nowrap}.evidence{background:var(--dark);color:#fff}.evidence .eyebrow{color:var(--accent)}.evidence p{color:#b8cec8}.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid #ffffff26;border-radius:var(--radius);overflow:hidden;margin-top:32px}.evidence-item{padding:33px;border-right:1px solid #ffffff26}.evidence-item:last-child{border:0}.evidence-item strong{display:block;color:var(--accent);font-size:42px;line-height:1.2;margin-bottom:27px}.evidence-item h3{margin-bottom:13px}.evidence-item p{font-size:14px}.evidence-caption{font-size:12px;margin-top:20px!important}.partners{background:#fff}.partner-panel{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:start}.partner-panel p{margin-top:20px}.partner-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.partner-list li{padding:20px 0;border-bottom:1px solid var(--line);display:flex;gap:25px;align-items:flex-start}.partner-list strong{min-width:100px;font-size:15px}.partner-list span{font-size:14px;color:var(--muted)}.safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.safe-card{padding:26px 23px;background:var(--surface);border:1px solid var(--line);border-radius:18px}.safe-icon{display:grid;place-items:center;background:var(--mint);color:var(--brand);width:40px;height:40px;border-radius:12px;margin-bottom:25px;font-size:17px;font-weight:700}.safe-card h3{font-size:17px;margin-bottom:13px}.safe-card p{font-size:13px}.questions{background:#fff}.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.faq-intro p{margin-top:22px}.faq-list details{border-bottom:1px solid var(--line);padding:23px 0}.faq-list details:first-child{padding-top:0}.faq-list summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:25px;font-weight:650;font-size:17px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";color:var(--brand);font-size:22px}.faq-list details[open] summary:after{content:"−"}.faq-list details[open] summary{color:var(--brand)}.faq-list p{font-size:14px;margin-top:16px;padding-right:35px}.closing{padding:64px 0;border:0}.closing-panel{display:flex;align-items:center;justify-content:space-between;gap:55px;border-radius:28px;background:var(--mint);padding:48px}.closing-panel p{max-width:750px;margin-top:20px;color:#4d6960;font-size:14px}.closing-panel h2{font-size:30px}.closing-panel small{display:block;margin-top:16px;color:var(--brand);font-size:12px}.site-footer{background:var(--dark);color:#fff;padding:55px 0 25px}.footer-top{display:flex;justify-content:space-between;gap:40px;align-items:flex-start;padding-bottom:35px;border-bottom:1px solid #ffffff20}.site-footer .brand-icon{background:var(--accent);color:var(--dark)}.footer-copy{max-width:550px;margin-top:18px;color:#b4c8c4;font-size:13px}.footer-links{display:flex;gap:25px;font-size:13px;color:#d0ded7}.footer-links a:hover{color:var(--accent)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#9eb9b1;font-size:12px;padding-top:24px;flex-wrap:wrap}.footer-domain{overflow-wrap:anywhere}@media(min-width:1400px){.hero-stage{min-height:720px}.poster{width:250px;height:440px;right:60px}}@media(max-width:1024px){:root{--space:65px}.container{width:calc(100% - 44px)}.dock{margin-inline:22px}.hero-stage{padding:45px;min-height:660px}.hero-content{max-width:590px}.poster{width:165px;height:294px;right:28px;opacity:.65}.hero h1{font-size:57px}.hero-content p{max-width:510px}.rank-layout,.faq-layout{gap:40px}.safety-grid{grid-template-columns:repeat(2,1fr)}.news-grid{grid-template-columns:repeat(2,1fr)}.evidence-item{padding:25px}.channel-layout{gap:30px}.closing-panel{padding:35px;gap:28px}}@media(max-width:768px){:root{--space:52px}.container{width:calc(100% - 32px)}.site-header{top:8px;height:80px}.dock{margin-inline:16px;gap:10px;flex-wrap:wrap;border-radius:26px;padding:10px 15px}.brand{font-size:20px}.brand-icon{width:35px;height:35px}.menu-toggle{display:block;margin-left:auto;font-size:13px}.nav-note{display:none}.nav-links{display:none;flex-basis:100%;margin:0;padding-top:8px;border-top:1px solid var(--line);gap:10px}.nav-links.open{display:flex}.nav-links a{flex:1;text-align:center;padding:10px}.hero{padding-top:17px}.hero-stage{min-height:720px;padding:35px 28px;align-items:flex-end}.hero h1{font-size:48px}.hero-content{max-width:100%}.hero-content p{font-size:15px;max-width:100%}.poster{top:28px;right:30px;width:124px;height:220px;opacity:.6;transform:rotate(8deg)}.poster-caption{left:12px;bottom:12px}.poster-caption strong{font-size:18px}.poster-caption span{font-size:10px}.hero-stage:after{background:linear-gradient(0deg,#092b30 5%,#092b30e8 60%,#092b3040)}.hero-index{left:28px;top:31px;max-width:120px}.section-head{align-items:start;gap:20px}.section-head p{font-size:14px}.feature-grid,.channel-layout,.rank-layout,.partner-panel,.faq-layout{grid-template-columns:1fr;gap:28px}.image-wrap{height:230px}.evidence-grid{grid-template-columns:1fr}.evidence-item{border-right:0;border-bottom:1px solid #ffffff26;display:grid;grid-template-columns:70px 1fr;column-gap:20px}.evidence-item strong{grid-row:span 2;margin:0;font-size:34px}.evidence-item h3{font-size:18px}.closing-panel{align-items:flex-start;flex-direction:column;gap:25px}.closing-panel .btn{width:100%}.footer-top{flex-direction:column;gap:25px}.footer-links{flex-wrap:wrap}}@media(max-width:520px){body{font-size:15px}.hero-stage{min-height:750px;border-radius:24px;padding:28px 23px}.hero h1{font-size:41px}.hero .eyebrow{font-size:12px;letter-spacing:.04em}.hero p{font-size:14px;line-height:1.95}.hero-bottom{align-items:flex-start;flex-direction:column;gap:13px}.hero-bottom 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/* roulang page: article */
:root{--bg:#f4f6f4;--surface:#fff;--ink:#153237;--muted:#637575;--line:#dce5e0;--brand:#17675b;--brand-dark:#0d4c43;--mint:#d9eee3;--accent:#d5ef8b;--dark:#102d32;--radius:22px;--small:13px;--shadow:0 16px 45px #173c3210;--space:82px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:125px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{cursor:pointer}
button,a,summary{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
a,button,summary{transition:color .2s,background .2s,transform .2s,box-shadow .2s}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #a0bb52;outline-offset:5px}
a:active,button:active{transform:translateY(1px)}
h1,h2,h3,p{margin:0}
h1,h2,h3{line-height:1.45}
.container{width:min(1180px,calc(100% - 64px));margin-inline:auto}
.site-header{position:sticky;top:16px;z-index:40;height:88px;padding-top:12px;pointer-events:none}
.nav-dock{display:flex;align-items:center;gap:22px;padding:13px 20px;background:#ffffffed;border:1px solid var(--line);border-radius:60px;box-shadow:var(--shadow);backdrop-filter:blur(18px);pointer-events:auto}
.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;white-space:nowrap}
.brand-icon{display:grid;place-items:center;width:40px;height:40px;background:var(--brand);color:#fff;border-radius:50%;font-size:17px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{font-size:14px;padding:9px 19px;border-radius:30px;color:var(--muted);font-weight:600}
.nav-links a:hover,.nav-links a.active{background:var(--mint);color:var(--brand-dark)}
.nav-note{padding:6px 15px;border-left:1px solid var(--line);font-size:12px;color:var(--brand);white-space:nowrap}
.menu-toggle{display:none;border:0;background:var(--mint);border-radius:30px;padding:9px 14px;color:var(--brand)}
main{overflow:hidden}
section{padding:var(--space) 0;border-bottom:1px solid var(--line)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.13em;display:block;margin-bottom:18px;color:var(--brand)}
.badge{display:inline-flex;align-items:center;gap:7px;padding:4px 12px;border-radius:30px;font-size:12px;line-height:1.8;background:var(--mint);color:var(--brand-dark);font-weight:600}
.badge:before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}
.btn{display:inline-flex;justify-content:center;align-items:center;gap:24px;padding:13px 23px;border-radius:40px;background:var(--brand);color:#fff;font-size:14px;font-weight:650;border:1px solid transparent;line-height:1.6;white-space:nowrap}
.btn:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 20px #153b3920}
.btn-light{background:var(--accent);color:var(--dark)}
.btn-light:hover{background:#e6f5bc}
.text-link{font-size:14px;border-bottom:1px solid var(--brand);padding-bottom:4px;color:var(--brand)}
.text-link:hover{color:var(--ink)}
.article-hero{padding:48px 0 42px}
.breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:30px}
.breadcrumb a:hover{color:var(--brand)}
.hero-grid{display:grid;grid-template-columns:minmax(0,720px) 1fr;gap:64px;align-items:end}
.article-hero h1{font-size:clamp(29px,3.5vw,45px);letter-spacing:-.035em;margin:20px 0 24px;overflow-wrap:anywhere}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;font-size:13px;color:var(--muted)}
.hero-mark{border-left:1px solid var(--line);padding:16px 0 16px 28px}
.hero-mark strong{display:block;font-size:32px;letter-spacing:-1px}
.hero-mark p{font-size:13px;color:var(--muted);margin-top:8px}
.article-layout{display:grid;grid-template-columns:minmax(0,720px) minmax(230px,1fr);gap:64px;align-items:start;padding-top:42px;padding-bottom:64px}
.reading-column{min-width:0}
.article-summary{padding:26px 30px;background:var(--mint);border-radius:var(--radius);border:1px solid #c4ddcf}
.article-summary h2{font-size:16px;margin-bottom:12px}
.article-summary p{font-size:15px;color:#365b52;line-height:1.95;overflow-wrap:anywhere}
.article-cover{margin:28px 0 0;border-radius:var(--radius);overflow:hidden;background:var(--line);border:1px solid var(--line)}
.article-cover img{width:100%;max-height:390px;object-fit:cover}
.article-cover figcaption{font-size:12px;padding:12px 19px;color:var(--muted);background:var(--surface)}
.article-body{padding:35px 0 36px;overflow-wrap:anywhere;color:#314b4c;font-size:16px;line-height:2}
.article-body>:first-child{margin-top:0}
.article-body p{margin:0 0 23px}
.article-body h2{font-size:25px;color:var(--ink);margin:36px 0 18px}
.article-body h3{font-size:20px;color:var(--ink);margin:26px 0 14px}
.article-body h4{font-size:17px;margin:24px 0 12px}
.article-body ul,.article-body ol{padding-left:25px;margin:20px 0}
.article-body li{padding:5px 0}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:var(--brand-dark)}
.article-body img{border-radius:15px;margin:25px auto}
.article-body blockquote{margin:26px 0;border-left:3px solid var(--brand);padding:20px 25px;background:var(--mint);border-radius:0 15px 15px 0}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:14px;margin:26px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:13px 18px;text-align:left}
.article-body th{background:var(--mint);color:var(--brand-dark)}
.article-body pre{overflow:auto;padding:20px;border-radius:13px;background:var(--dark);color:#e0ece7;line-height:1.7}
.article-body iframe,.article-body video{max-width:100%}
.article-note{padding:23px 26px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}
.article-note h2{font-size:18px;margin-bottom:10px}
.article-note p{font-size:14px;color:var(--muted)}
.sidebar{position:sticky;top:125px}
.side-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:27px;margin-bottom:20px}
.side-card h2{font-size:19px;margin:15px 0 12px}
.side-card p{font-size:14px;color:var(--muted)}
.side-list{padding:0;list-style:none;margin:21px 0 0}
.side-list li{display:flex;gap:12px;padding:15px 0;border-top:1px solid var(--line);font-size:13px}
.side-list span{font-weight:700;color:var(--brand)}
.side-dark{background:var(--dark);border-color:var(--dark);color:#fff}
.side-dark .eyebrow{color:var(--accent)}
.side-dark p{color:#c1d4ce}
.side-dark .text-link{color:var(--accent);border-color:#6b8977;display:inline-block;margin-top:22px}
.questions{background:#fff;padding:58px 0}
.section-heading{display:grid;grid-template-columns:1fr 1.3fr;gap:70px;margin-bottom:28px}
.section-heading h2{font-size:29px}
.section-heading p{color:var(--muted);font-size:14px;align-self:end}
.faq-list{max-width:900px;margin-left:auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 0;cursor:pointer;list-style:none;font-size:17px;font-weight:650}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:23px;font-weight:400;color:var(--brand);flex-shrink:0}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--brand)}
.faq-item p{font-size:14px;color:var(--muted);padding:0 40px 25px 0;max-width:740px}
.closing{padding:50px 0}
.closing-panel{background:var(--dark);border-radius:var(--radius);color:#fff;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.closing-panel .eyebrow{color:var(--accent);margin-bottom:10px}
.closing-panel h2{font-size:25px}
.closing-panel p{color:#c6d9d1;font-size:14px;margin-top:10px;max-width:640px}
.empty-state{padding:85px 24px;text-align:center;border:1px solid var(--line);border-radius:var(--radius);background:#fff;min-height:320px;display:grid;align-content:center;justify-items:center;gap:24px}
.empty-state h2{font-size:26px}
.empty-wrap{padding:45px 0 85px}
.site-footer{padding:55px 0 22px;background:#ecf0ec}
.footer-top{display:grid;grid-template-columns:1fr auto;gap:60px;padding-bottom:38px}
.footer-copy{max-width:640px;font-size:13px;color:var(--muted);margin-top:18px}
.footer-links{display:flex;flex-wrap:wrap;gap:24px;align-content:start;padding-top:9px;font-size:13px}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid #d2ddd5;padding-top:22px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:12px}
.footer-domain{overflow-wrap:anywhere}
@media(min-width:1600px){.article-hero{padding-top:65px}}
@media(max-width:1024px){:root{--space:60px}.nav-note{display:none}.hero-grid{gap:32px;grid-template-columns:minmax(0,1fr) 220px}.article-layout{gap:32px;grid-template-columns:minmax(0,1fr) 255px}.side-card{padding:22px}.section-heading{gap:32px}}
@media(max-width:768px){.container{width:calc(100% - 40px)}.nav-dock{gap:10px;padding:11px 15px}.brand{font-size:20px}.nav-links a{padding:9px 13px}.hero-grid{grid-template-columns:1fr}.hero-mark{display:none}.article-layout{grid-template-columns:1fr;gap:30px}.reading-column{max-width:720px;width:100%;margin:auto}.sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}.side-card{margin:0}.article-hero{padding-top:32px}.section-heading{grid-template-columns:1fr;gap:16px}.section-heading h2{font-size:25px}.closing-panel{align-items:flex-start;flex-direction:column;padding:30px}.footer-top{grid-template-columns:1fr;gap:22px}.footer-bottom{flex-direction:column;gap:8px}}
@media(max-width:520px){.container{width:calc(100% - 28px)}.site-header{top:7px;height:82px}.nav-dock{position:relative;border-radius:30px}.brand-icon{width:35px;height:35px}.brand{font-size:19px}.menu-toggle{display:block;margin-left:auto;font-size:13px}.nav-links{display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);padding:12px;background:#fff;border:1px solid var(--line);border-radius:21px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.is-open{display:flex}.nav-links a{padding:12px 17px}.article-hero{padding:24px 0 30px}.breadcrumb{margin-bottom:22px;font-size:12px}.article-hero h1{font-size:29px;margin-top:16px}.article-meta{font-size:12px;gap:8px 15px}.article-layout{padding-top:24px;padding-bottom:38px}.article-summary{padding:21px}.article-summary p{font-size:14px}.article-body{font-size:16px}.article-body h2{font-size:23px}.article-body h3{font-size:19px}.sidebar{grid-template-columns:1fr}.article-cover{margin-top:20px}.article-cover img{min-height:180px}.questions{padding:40px 0}.faq-item summary{font-size:16px;padding:21px 0}.closing{padding:30px 0}.closing-panel{padding:25px}.closing-panel h2{font-size:22px}.closing-panel .btn{width:100%}.footer-links{gap:19px}.site-footer{padding-top:38px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}

/* roulang page: category1 */
:root{--bg:#f4f6f4;--surface:#fff;--ink:#153237;--muted:#637575;--line:#dce5e0;--brand:#17675b;--brand-dark:#0d4c43;--mint:#d9eee3;--accent:#d5ef8b;--dark:#102d32;--radius:22px;--small:13px;--shadow:0 16px 45px #173c3210;--space:82px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35}h2{font-size:clamp(26px,3vw,38px);letter-spacing:-.035em}h3{font-size:19px}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input{font:inherit}button{cursor:pointer}
button,a,summary{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
a,button,summary{transition:color .2s,background .2s,transform .2s,box-shadow .2s}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #a0bb52;outline-offset:5px}
a:active,button:active{transform:translateY(1px)}
.container{width:min(1180px,calc(100% - 64px));margin-inline:auto}
.site-header{position:sticky;top:16px;z-index:40;height:88px;padding-top:12px;pointer-events:none}
.nav-dock{display:flex;align-items:center;gap:24px;min-height:72px;padding:12px 20px;background:#fffffff2;border:1px solid var(--line);border-radius:50px;box-shadow:var(--shadow);backdrop-filter:blur(18px);pointer-events:auto}
.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;white-space:nowrap}
.brand-icon{display:grid;place-items:center;width:40px;height:40px;background:var(--brand);color:#fff;border-radius:50%;font-size:17px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{font-size:14px;padding:9px 19px;border-radius:30px;color:var(--muted);font-weight:600}
.nav-links a:hover,.nav-links a.active{background:var(--mint);color:var(--brand-dark)}
.nav-note{padding:6px 15px;border-left:1px solid var(--line);font-size:12px;color:var(--brand);white-space:nowrap}
.menu-toggle{display:none;border:0;background:var(--mint);border-radius:30px;padding:9px 14px;color:var(--brand)}
main{overflow:hidden}
section{padding:var(--space) 0;border-bottom:1px solid var(--line)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.13em;display:block;margin-bottom:18px;color:var(--brand)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:45px;margin-bottom:34px}
.section-head>div{max-width:640px}.section-head p{max-width:460px;font-size:15px;color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:7px;padding:4px 12px;border-radius:30px;font-size:12px;line-height:1.8;background:var(--mint);color:var(--brand-dark);font-weight:600}
.badge:before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}
.btn{display:inline-flex;justify-content:center;align-items:center;gap:24px;padding:13px 23px;border-radius:40px;background:var(--brand);color:#fff;font-size:14px;font-weight:650;border:1px solid transparent;line-height:1.6;white-space:nowrap}
.btn:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 8px 20px #153b3920}
.btn-light{background:var(--accent);color:var(--dark)}.btn-light:hover{background:#e6f5bc}
.text-link{font-size:14px;border-bottom:1px solid var(--brand);padding-bottom:4px;color:var(--brand)}.text-link:hover{color:var(--ink)}
.hero{padding:28px 0 58px;border:0}
.entry-stage{position:relative;isolation:isolate;overflow:hidden;border-radius:32px;background:var(--dark);color:#fff;padding:54px;display:grid;grid-template-columns:1.25fr .75fr;gap:54px;align-items:center}
.entry-stage:before{content:"";position:absolute;inset:0;z-index:-2;background:url('/assets/images/073eebe36c402e03.jpg') center/cover;opacity:.12}
.entry-stage:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,#102d32f5,#102d32b5)}
.hero .eyebrow{color:var(--accent)}.hero h1{font-size:clamp(35px,4.4vw,55px);letter-spacing:-.04em;margin:20px 0}.hero h1 span{display:block;color:var(--accent);font-size:.55em;letter-spacing:0;margin-top:16px}
.hero-copy>p{color:#cbddd7;font-size:16px;max-width:610px;margin:22px 0 28px}
.hero-bottom{display:flex;gap:20px;align-items:center}.hero-bottom small{color:#c5d6d1;font-size:12px}
.poster{border:1px solid #ffffff30;border-radius:20px;overflow:hidden;background:#173b3c;box-shadow:0 20px 40px #0003}
.poster img{width:100%;height:245px;object-fit:cover;opacity:.85}.poster-caption{padding:20px 23px}.poster-caption strong{display:block;font-size:18px;margin:8px 0}.poster-caption p{color:#bdcdc8;font-size:13px}.poster .badge{background:#ffffff12;color:var(--accent)}
.risk-strip{display:flex;align-items:center;gap:25px;padding:23px 0 0;color:var(--muted);font-size:14px}.risk-strip strong{color:var(--brand);white-space:nowrap}
.featured{background:var(--surface)}.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:start}.lead{color:var(--muted);margin-top:22px}
.rank-list{list-style:none;padding:0;margin:0}
.rank-list li{display:grid;grid-template-columns:44px 1fr;align-items:start;gap:17px;padding:23px 0;border-bottom:1px solid var(--line)}
.rank-list li:first-child{padding-top:0}.rank-list h3{font-size:18px}.rank-list p{font-size:14px;margin-top:7px;color:var(--muted)}
.number{display:grid;place-items:center;width:37px;height:37px;border-radius:12px;background:var(--mint);font-size:13px;color:var(--brand);font-weight:700}
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:30px;transition:transform .2s,box-shadow .2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.feature-card h3{margin:22px 0 13px}.feature-card p{color:var(--muted);font-size:14px}
.card-mark{display:inline-block;font-size:12px;border-bottom:2px solid var(--brand);color:var(--brand);padding-bottom:8px}
.check-section{background:#fff}.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.check-item{padding:28px;border-right:1px solid var(--line)}.check-item:last-child{border:0}.check-item>span{font-size:32px;color:#95afa2;font-weight:300}.check-item h3{font-size:17px;margin:20px 0 12px}.check-item p{color:var(--muted);font-size:14px}
.evidence{background:var(--dark);color:#fff}.evidence .eyebrow{color:var(--accent)}.evidence .section-head p{color:#bfd1cb}
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid #ffffff26;border-radius:var(--radius);overflow:hidden}
.evidence-item{padding:33px;border-right:1px solid #ffffff26}.evidence-item:last-child{border:0}.evidence-item strong{display:block;color:var(--accent);font-size:40px;line-height:1.2;margin-bottom:24px}.evidence-item h3{margin-bottom:13px;font-size:18px}.evidence-item p{font-size:14px;color:#bfd1cb}
.evidence-note{margin-top:22px;font-size:13px;color:#adc5bd}
.scene-layout{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:start}.scene-intro{position:relative;border-radius:var(--radius);background:var(--mint);padding:36px}.scene-intro p{color:var(--muted);margin-top:20px;font-size:15px}.scene-intro .badge{background:#fff9;margin-top:27px}
.partner-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.partner-list li{padding:22px 0;border-bottom:1px solid var(--line);display:flex;gap:25px;align-items:flex-start}
.partner-list strong{min-width:100px;font-size:15px}.partner-list span{font-size:14px;color:var(--muted)}
.questions{background:#fff}.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:65px}.faq-intro p{font-size:15px;color:var(--muted);margin-top:20px}
.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{position:relative;list-style:none;cursor:pointer;padding:23px 38px 23px 0;font-size:17px;font-weight:650}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:3px;top:20px;font-size:25px;color:var(--brand);font-weight:400}details[open] summary:after{content:"−"}summary:hover{color:var(--brand)}details p{font-size:14px;color:var(--muted);padding:0 30px 24px 0}
.cta-section{border:0}.cta-box{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:42px;background:var(--mint);border:1px solid #c8dfd1;border-radius:var(--radius)}.cta-box h2{font-size:29px}.cta-box p{margin-top:14px;color:var(--muted);max-width:700px;font-size:14px}
.site-footer{background:#eaf0eb;padding:54px 0 24px;border-top:1px solid var(--line)}.footer-top{display:grid;grid-template-columns:1fr auto;gap:80px;padding-bottom:37px}.footer-copy{font-size:13px;color:var(--muted);max-width:660px;margin-top:18px}.footer-links{display:flex;gap:25px;align-items:start;font-size:14px;padding-top:10px}.footer-links a:hover{color:var(--brand);text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;gap:22px;border-top:1px solid #d1ddd3;padding-top:22px;font-size:12px;color:var(--muted)}.footer-domain{overflow-wrap:anywhere}
@media(min-width:1500px){.entry-stage{min-height:510px}}
@media(max-width:1024px){:root{--space:65px}.nav-note{display:none}.entry-stage{padding:38px;gap:30px;grid-template-columns:1.2fr .8fr}.poster img{height:215px}.hero-bottom{align-items:start;flex-direction:column;gap:13px}.split,.faq-layout{gap:38px}.check-item{padding:22px}.footer-top{gap:35px}.footer-links{gap:17px}.scene-layout{gap:30px}}
@media(max-width:768px){:root{--space:52px}.container{width:calc(100% - 36px)}.site-header{top:8px;height:85px}.nav-dock{position:relative;padding:10px 15px;gap:12px;min-height:65px}.brand{font-size:20px}.brand-icon{width:36px;height:36px}.menu-toggle{display:block;margin-left:auto;font-size:13px}.nav-links{display:none;position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;padding:12px;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.nav-links.is-open{display:flex}.nav-links a{padding:12px 18px}.entry-stage{grid-template-columns:1fr;padding:32px;gap:30px}.hero{padding-top:17px}.poster{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center}.poster img{height:180px}.poster-caption{padding:18px}.hero-bottom{flex-direction:row;align-items:center}.section-head{flex-direction:column;align-items:start;gap:18px}.split,.scene-layout,.faq-layout{grid-template-columns:1fr;gap:32px}.solution-grid{grid-template-columns:1fr}.feature-card{padding:27px}.feature-card h3{margin-top:17px}.check-grid{grid-template-columns:repeat(2,1fr)}.check-item:nth-child(2){border-right:0}.check-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.evidence-item{padding:24px}.evidence-item strong{font-size:30px}.footer-top{grid-template-columns:1fr;gap:23px}.footer-links{padding:0}.cta-box{padding:30px;align-items:start;flex-direction:column;gap:25px}.footer-bottom{flex-direction:column;gap:8px}.risk-strip{align-items:start;gap:16px}.risk-strip strong{font-size:13px}}
@media(max-width:520px){.container{width:calc(100% - 28px)}.entry-stage{padding:28px 23px;border-radius:24px}.hero h1{font-size:34px}.hero-copy>p{font-size:14px}.hero-bottom{align-items:start;flex-direction:column}.poster{grid-template-columns:1fr}.poster img{height:165px}.poster-caption{padding:19px}.risk-strip{flex-direction:column;gap:6px}.check-item{padding:22px 18px}.check-item h3{font-size:16px}.check-item p{font-size:13px}.evidence-grid{grid-template-columns:1fr}.evidence-item{border-right:0;border-bottom:1px solid #ffffff26}.evidence-item strong{margin-bottom:15px}.partner-list li{flex-direction:column;gap:7px}.scene-intro{padding:27px}.footer-links{flex-wrap:wrap;gap:12px 23px}.cta-box h2{font-size:25px}summary{font-size:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}