/* roulang page: index */
:root{--primary:#142b27;--accent:#d5ed84;--paper:#f6f7f2;--white:#fff;--text:#172c28;--muted:#66736d;--border:#dfe5dd;--radius:20px;--shadow:0 18px 50px rgba(20,43,39,.07)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:104px}
body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}
button,input,select{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%;height:auto}
::selection{background:var(--accent);color:var(--primary)}
:focus-visible{outline:3px solid #7c9d2e;outline-offset:5px}
.container{width:min(1200px,calc(100% - 64px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,247,242,.96);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}
.header-inner{min-height:88px;display:flex;align-items:center;gap:48px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-icon{width:39px;height:39px;border:1px solid currentColor;display:grid;place-items:center;font-size:22px;font-weight:800;border-radius:12px;transform:rotate(-7deg)}
.brand-name{font-size:23px;font-weight:850;letter-spacing:-1px}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.main-nav a{font-size:14px;font-weight:600;padding:30px 0;position:relative;color:var(--muted)}
.main-nav a:hover,.main-nav a.active{color:var(--primary)}
.main-nav a.active:after{content:"";position:absolute;bottom:18px;left:0;width:18px;height:3px;background:var(--primary);border-radius:4px}
.language-switch{display:flex;padding:4px;border:1px solid var(--border);border-radius:100px;gap:2px}
.language-switch button{border:0;background:transparent;padding:5px 11px;font-size:12px;border-radius:100px;color:var(--muted)}
.language-switch button[aria-pressed="true"]{background:var(--primary);color:white}
.language-switch button:hover{box-shadow:inset 0 0 0 1px var(--border)}
.menu-toggle{display:none;border:1px solid var(--border);background:white;border-radius:10px;padding:6px 12px;font-size:14px}
section{position:relative;padding:88px 0}
.section-line{border-top:1px solid var(--border)}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;display:flex;align-items:center;gap:10px;margin-bottom:20px}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
h1,h2,h3,p{margin:0}
h2{font-size:clamp(27px,3.3vw,42px);line-height:1.35;letter-spacing:-1.6px;font-weight:750}
h3{font-size:19px;font-weight:700;line-height:1.5}
.section-copy{max-width:670px;color:var(--muted);font-size:15px;line-height:1.95;margin-top:22px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-index{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.hero{background:var(--primary);color:white;overflow:hidden;padding:92px 0 80px;min-height:670px}
.hero-image{position:absolute;inset:0 0 0 38%;background:url('/assets/images/38e730041f5727fc.png') center/cover;opacity:.3}
.hero:after{content:"";position:absolute;inset:0;background:#d5ed84;clip-path:polygon(83% 0,100% 0,100% 100%,61% 100%);opacity:.92}
.hero-shape{position:absolute;inset:0;background:var(--primary);clip-path:polygon(0 0,75% 0,51% 100%,0 100%);opacity:.95}
.hero-content{position:relative;z-index:2}
.hero h1{font-size:clamp(49px,7.6vw,94px);line-height:1.13;letter-spacing:-4px;font-weight:800;max-width:870px}
.hero h1 span{color:var(--accent)}
.hero-description{max-width:660px;color:#d1dbd5;font-size:15px;line-height:2;margin-top:30px}
.hero-bottom{display:flex;align-items:center;gap:25px;margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:30px;min-height:52px;padding:12px 24px;border-radius:100px;font-weight:700;font-size:14px;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
.btn-primary{background:var(--accent);color:var(--primary)}
.btn:hover{transform:translateY(-3px);box-shadow:0 8px 22px #0002}
.btn:active{transform:translateY(0)}
.hero-note{font-size:12px;color:#cfdbd4}
.hero-number{position:absolute;right:0;bottom:-22px;color:var(--primary);font-size:clamp(100px,16vw,190px);font-weight:800;letter-spacing:-13px;line-height:1;opacity:.85;z-index:-1}
.badge{display:inline-flex;border:1px solid var(--border);border-radius:100px;padding:5px 12px;font-size:12px;color:var(--muted);background:white}
.card{border:1px solid var(--border);border-radius:var(--radius);background:var(--white);padding:30px;transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b5c4ad}
.card p{font-size:14px;color:var(--muted);margin-top:13px;line-height:1.9}
.card-number{font-size:12px;color:#7d887f;display:block;margin-bottom:35px}
.dark-block{background:var(--primary);color:white}
.dark-block .section-copy{color:#b9c9c0}
.fit-list{list-style:none;padding:0;margin:24px 0 0}
.fit-list li{padding:18px 0;border-top:1px solid #ffffff25;display:flex;gap:14px;font-size:14px;color:#d4dfd8}
.fit-list .symbol{color:var(--accent);flex-shrink:0}
.fit-panel{border:1px solid #ffffff25;padding:30px;border-radius:var(--radius)}
.fit-panel.muted-panel{background:#ffffff06}
.matrix-row{display:grid;grid-template-columns:70px 220px 1fr;gap:28px;align-items:center;padding:27px 0;border-bottom:1px solid var(--border)}
.matrix-row:first-child{border-top:1px solid var(--border)}
.matrix-icon{height:48px;width:48px;display:grid;place-items:center;border:1px solid #cfd8cc;border-radius:14px;background:#edf1e7;font-size:20px}
.matrix-row p{color:var(--muted);font-size:14px}
.comparison-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius);background:white}
.comparison{width:100%;border-collapse:collapse;text-align:left;min-width:590px;font-size:14px}
.comparison th,.comparison td{padding:23px 26px;border-bottom:1px solid var(--border);vertical-align:top}
.comparison thead th{font-size:16px;background:#edf1e8}
.comparison .recommended{background:#e9f2d3}
.comparison tbody tr:last-child td{border-bottom:0}
.comparison td:not(:first-child){color:var(--muted)}
.image-card{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--primary);min-height:340px}
.image-card img{width:100%;height:340px;object-fit:cover;opacity:.58;transition:transform .5s}
.image-card:hover img{transform:scale(1.04)}
.image-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,#112c26f0)}
.image-caption{position:absolute;z-index:2;bottom:27px;left:28px;right:28px;color:white}
.image-caption p{font-size:14px;color:#e0e8e2;margin-top:10px;max-width:460px}
.topic-link{display:inline-flex;align-items:center;gap:20px;font-weight:650;font-size:14px;padding-bottom:5px;border-bottom:1px solid currentColor}
.topic-link:hover{color:#627f29;gap:28px}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin-top:40px}
.timeline-item{border-top:2px solid var(--primary);padding-top:23px}
.timeline-item span{font-size:12px;color:var(--muted)}
.timeline-item h3{margin:13px 0}
.timeline-item p{font-size:14px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.news-card{padding:27px;display:flex;flex-direction:column;min-height:260px}
.news-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:11px;color:var(--muted);margin-bottom:24px}
.news-card h3{font-size:19px}
.news-card h3 a:hover{color:#64812c}
.news-card p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}
.news-bottom{margin-top:auto;padding-top:25px;font-size:12px;display:flex;justify-content:space-between;color:#6b795e}
.empty-state{padding:40px;border:1px dashed #bfcbb9;background:white;border-radius:var(--radius);color:var(--muted)}
.safety-item{display:flex;gap:20px;padding:26px 0;border-bottom:1px solid var(--border)}
.safety-item:last-child{border-bottom:0}
.safety-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:#e9f0dd;flex-shrink:0;font-size:14px;font-weight:750}
.safety-item p{font-size:14px;color:var(--muted);margin-top:9px}
.side-note{background:var(--accent);border-radius:var(--radius);padding:36px;align-self:start}
.side-note .big{font-size:72px;font-weight:800;letter-spacing:-5px;line-height:1.2}
.side-note p{margin-top:20px;font-size:14px;line-height:2}
.answer-card{border-left:2px solid #bdce9b;padding:4px 0 4px 24px}
.answer-card p{font-size:14px;color:var(--muted);margin-top:15px;line-height:1.95}
.faq-list{border-top:1px solid var(--border)}
.faq-list details{border-bottom:1px solid var(--border);padding:23px 0}
.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;font-size:17px;font-weight:650}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";font-size:23px;font-weight:400}
.faq-list details[open] summary:after{content:"−"}
.faq-list details p{color:var(--muted);font-size:14px;max-width:850px;margin-top:18px;line-height:2}
.faq-list summary:hover{color:#64812c}
.site-footer{background:#10231f;color:#b9c8be;padding:56px 0 28px}
.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:38px}
.footer-top .brand{color:white}
.footer-description{font-size:13px;max-width:480px;margin-top:20px;color:#a7b9ae}
.footer-links{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start;font-size:13px}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff20;padding-top:25px;font-size:11px;color:#93a79b}
@media(min-width:1280px){.hero-description{max-width:680px}}
@media(max-width:1024px){.container{width:calc(100% - 48px)}.header-inner{gap:24px}.hero{min-height:630px}.hero-description{max-width:620px}.hero-number{opacity:.35}.matrix-row{grid-template-columns:55px 180px 1fr}.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}section{padding:70px 0}}
@media(max-width:768px){.header-inner{min-height:76px;flex-wrap:wrap;gap:15px}.brand-name{font-size:20px}.language-switch{margin-left:auto}.menu-toggle{display:block}.main-nav{display:none;width:100%;order:4;margin:0;padding:0 0 18px;gap:28px}.main-nav.is-open{display:flex}.main-nav a{padding:8px 0}.main-nav a.active:after{bottom:0}.hero{padding:70px 0;min-height:auto}.hero:after{clip-path:polygon(96% 0,100% 0,100% 100%,86% 100%)}.hero-shape{clip-path:none;opacity:.9}.hero h1{letter-spacing:-2px}.hero-description{padding-right:15px}.hero-number{display:none}.section-head{display:block}.section-index{display:none}.matrix-row{grid-template-columns:48px 1fr;gap:18px}.matrix-row p{grid-column:2}.timeline{grid-template-columns:1fr;gap:28px}.footer-top,.footer-bottom{flex-direction:column}.hero-note{max-width:160px}.news-grid{gap:16px}.card{padding:24px}}
@media(max-width:520px){.container{width:calc(100% - 36px)}section{padding:56px 0}.brand-icon{width:32px;height:32px;font-size:18px}.brand-name{font-size:19px}.language-switch button{padding:4px 7px;font-size:11px}.header-inner{gap:9px}.menu-toggle{padding:5px 9px;font-size:12px}.hero h1{font-size:50px}.hero-description{font-size:14px;line-height:1.95}.hero-bottom{align-items:flex-start;flex-direction:column;gap:15px}.hero-note{max-width:none}.news-grid{grid-template-columns:1fr}.news-card{min-height:235px}.fit-panel{padding:24px}.image-card,.image-card img{min-height:300px;height:300px}.section-copy{font-size:14px}.side-note{padding:28px}.faq-list summary{font-size:15px}.footer-links{gap:18px}.matrix-row h3{font-size:18px}.comparison th,.comparison td{padding:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* roulang page: article */
:root{--primary:#142b27;--accent:#d5ed84;--paper:#f6f7f2;--white:#fff;--text:#172c28;--muted:#66736d;--border:#dfe5dd;--radius:20px;--shadow:0 18px 50px rgba(20,43,39,.07)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}
button,input,select{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,p,figure,blockquote{margin:0}
h2{font-size:clamp(25px,3vw,36px);font-weight:750;line-height:1.4;letter-spacing:-1px}
h3{font-size:19px;font-weight:700;line-height:1.5}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #86a747;outline-offset:5px}
.container{width:min(1200px,calc(100% - 64px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,247,242,.96);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}
.header-inner{min-height:88px;display:flex;align-items:center;gap:48px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-icon{width:39px;height:39px;border:1px solid currentColor;display:grid;place-items:center;font-size:22px;font-weight:800;border-radius:12px;transform:rotate(-7deg)}
.brand-name{font-size:23px;font-weight:850;letter-spacing:-1px}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.main-nav a{font-size:14px;font-weight:600;padding:30px 0;position:relative;color:var(--muted)}
.main-nav a:hover,.main-nav a.active{color:var(--primary)}
.main-nav a.active:after{content:"";position:absolute;bottom:18px;left:0;width:18px;height:3px;background:var(--primary);border-radius:4px}
.language-switch{display:flex;align-items:center;padding:4px;border:1px solid var(--border);border-radius:100px}
.language-switch button{border:0;background:transparent;padding:5px 11px;font-size:12px;border-radius:100px;color:var(--muted)}
.language-switch button[aria-pressed="true"]{background:var(--primary);color:white}
.language-switch button:hover{box-shadow:inset 0 0 0 1px var(--border)}
.menu-toggle{display:none;border:1px solid var(--border);background:white;border-radius:10px;padding:6px 12px;font-size:14px}
section{position:relative;padding:76px 0}
.section-line{border-top:1px solid var(--border)}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;display:flex;align-items:center;gap:10px;margin-bottom:20px}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.section-copy{max-width:670px;color:var(--muted);font-size:15px;line-height:1.95;margin-top:22px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-index{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:30px;min-height:52px;padding:12px 24px;border-radius:100px;font-weight:700;font-size:14px;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
.btn-primary{background:var(--accent);color:var(--primary)}
.btn-secondary{border-color:var(--border);background:var(--white);color:var(--primary)}
.btn:hover{transform:translateY(-3px);box-shadow:0 8px 22px #0002}
.btn:active{transform:translateY(0)}
.badge{display:inline-flex;border:1px solid var(--border);border-radius:100px;padding:5px 12px;font-size:12px;color:var(--muted);background:white}
.card{border:1px solid var(--border);border-radius:var(--radius);background:var(--white);padding:30px;transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b5c4ad}
.card p{font-size:14px;color:var(--muted);margin-top:13px;line-height:1.9}
.article-hero{padding:58px 0 48px}
.breadcrumb{display:flex;gap:10px;color:var(--muted);font-size:12px;margin-bottom:40px}
.breadcrumb a:hover{color:var(--primary)}
.article-title{max-width:1040px;font-size:clamp(34px,5vw,64px);line-height:1.26;letter-spacing:-2px;font-weight:800;overflow-wrap:anywhere}
.article-summary{max-width:850px;margin-top:26px;color:var(--muted);font-size:16px;line-height:2}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:15px;margin-top:30px;font-size:12px;color:var(--muted)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--muted)}
.cover-section{padding:0}
.article-cover{position:relative;overflow:hidden;background:var(--primary);min-height:330px;max-height:510px}
.article-cover img{width:100%;height:clamp(330px,38vw,510px);object-fit:cover;opacity:.73}
.article-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(20,43,39,.85),transparent 65%)}
.cover-caption{position:absolute;bottom:35px;left:max(32px,calc((100vw - 1200px)/2));z-index:1;color:white}
.cover-caption strong{display:block;font-size:24px;letter-spacing:1px}
.cover-caption span{font-size:12px;color:#d6e1d9}
.reading-layout{display:grid;grid-template-columns:200px minmax(0,790px);gap:70px;justify-content:space-between}
.reading-note{border-top:2px solid var(--primary);padding-top:20px;align-self:start}
.reading-note p{font-size:13px;color:var(--muted);margin-top:15px}
.reading-note .label{font-size:11px;letter-spacing:2px;color:var(--muted)}
.reading-note strong{display:block;margin-top:10px;font-size:20px}
.article-content{font-size:17px;line-height:2.05;min-width:0;overflow-wrap:anywhere}
.article-content p{margin:0 0 24px}
.article-content h2{margin:42px 0 20px;font-size:29px}
.article-content h3{margin:30px 0 15px;font-size:22px}
.article-content h2:first-child,.article-content h3:first-child{margin-top:0}
.article-content ul,.article-content ol{padding-left:1.5em;margin:20px 0 28px}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{padding:4px 0}
.article-content a{color:#466821;text-decoration:underline;text-underline-offset:4px}
.article-content a:hover{color:var(--primary)}
.article-content img{border-radius:16px;margin:30px auto}
.article-content blockquote{padding:22px 28px;border-left:3px solid #9cb557;background:#edf1e5;margin:28px 0}
.article-content table{display:block;width:100%;overflow:auto;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-content th,.article-content td{padding:14px;border:1px solid var(--border);text-align:left}
.article-content th{background:#eaf0e3}
.article-content pre{overflow:auto;background:var(--primary);color:#edf1e5;padding:20px;border-radius:12px;font-size:14px}
.article-content hr{border:0;border-top:1px solid var(--border);margin:36px 0}
.quote-section{padding:58px 0;background:var(--primary);color:white}
.quote-grid{display:grid;grid-template-columns:200px 1fr;gap:70px}
.quote-mark{color:var(--accent);font-family:serif;font-size:100px;line-height:1}
.pull-quote{font-size:clamp(23px,3.2vw,36px);line-height:1.65;font-weight:650;max-width:900px;letter-spacing:-.6px}
.quote-source{font-size:12px;color:#b7c8be;margin-top:20px}
.safety-item{display:flex;gap:20px;padding:26px 0;border-bottom:1px solid var(--border)}
.safety-item:first-child{padding-top:0}
.safety-item:last-child{border-bottom:0}
.safety-item p{font-size:14px;color:var(--muted);margin-top:9px}
.safety-number{font-size:12px;color:var(--muted);padding-top:6px}
.faq-list{border-top:1px solid var(--border)}
.faq-list details{border-bottom:1px solid var(--border);padding:23px 0}
.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;font-size:17px;font-weight:650}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"＋";color:var(--muted);flex-shrink:0}
.faq-list details[open] summary:after{content:"−"}
.faq-list details[open] summary{color:#55752f}
.faq-list details p{font-size:14px;line-height:1.95;color:var(--muted);padding:16px 45px 0 0}
.faq-section{background:#edf1e8}
.article-end{padding:52px 0 70px}
.end-panel{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:36px 40px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius)}
.end-panel p{color:var(--muted);font-size:14px;margin-top:10px}
.not-found{padding:80px 0 100px;text-align:center}
.not-found h2{margin-bottom:26px}
.site-footer{background:var(--primary);color:#e6eee7;padding:60px 0 24px}
.footer-top{display:grid;grid-template-columns:1fr auto;gap:80px;padding-bottom:42px}
.footer-description{max-width:510px;color:#acbfb4;font-size:13px;line-height:1.95;margin-top:24px}
.footer-links{display:grid;grid-template-columns:repeat(2,auto);gap:18px 38px;align-content:start;font-size:13px;padding-top:8px}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff20;padding-top:24px;color:#a8b9ae;font-size:11px}
@media(min-width:769px){.main-nav{display:flex!important}}
@media(max-width:1024px){.header-inner{gap:24px}.main-nav{gap:22px}.reading-layout,.quote-grid{grid-template-columns:160px minmax(0,1fr);gap:40px}.container{width:calc(100% - 48px)}.footer-top{gap:35px}}
@media(max-width:768px){.container{width:calc(100% - 40px)}.header-inner{min-height:76px;gap:14px;flex-wrap:wrap}.brand-name{font-size:21px}.language-switch{margin-left:auto}.menu-toggle{display:block}.main-nav{display:none;order:4;flex-basis:100%;margin:0;gap:28px;border-top:1px solid var(--border)}.main-nav.is-open{display:flex}.main-nav a{padding:16px 0}.main-nav a.active:after{bottom:8px}.article-hero{padding:38px 0}.breadcrumb{margin-bottom:28px}.article-title{letter-spacing:-1px}.article-summary{font-size:15px}.reading-layout,.quote-grid{grid-template-columns:1fr;gap:30px}.reading-note{display:none}section{padding:52px 0}.cover-caption{left:20px;bottom:25px}.quote-mark{font-size:65px;height:40px}.section-head{display:block;margin-bottom:28px}.section-index{display:block;margin-top:12px}.end-panel{padding:28px;align-items:flex-start;flex-direction:column}.footer-top{grid-template-columns:1fr;gap:30px}.footer-links{justify-content:start}.footer-bottom{flex-direction:column;gap:10px}}
@media(max-width:520px){.container{width:calc(100% - 32px)}.header-inner{gap:10px}.brand-icon{width:33px;height:33px;font-size:19px}.brand-name{font-size:20px}.language-switch button{padding:4px 7px;font-size:11px}.menu-toggle{padding:5px 9px;font-size:12px}.article-title{font-size:33px}.article-content{font-size:16px}.article-content h2{font-size:25px}.article-meta{gap:10px}.article-cover,.article-cover img{min-height:270px;height:270px}.pull-quote{font-size:24px}.card{padding:24px}.btn{gap:20px}.end-panel .btn{width:100%}.footer-bottom{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang page: category1 */
:root{--primary:#142b27;--accent:#d5ed84;--paper:#f6f7f2;--white:#fff;--text:#172c28;--muted:#66736d;--border:#dfe5dd;--radius:20px;--shadow:0 18px 50px rgba(20,43,39,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}button,input,select{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}button,a,input,select,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #8ba84a;outline-offset:5px}::selection{background:var(--accent);color:var(--primary)}
.container{width:min(1200px,calc(100% - 64px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(246,247,242,.96);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}.header-inner{min-height:88px;display:flex;align-items:center;gap:40px}.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}.brand-icon{width:39px;height:39px;border:1px solid currentColor;display:grid;place-items:center;font-size:22px;font-weight:800;border-radius:12px;transform:rotate(-7deg)}.brand-name{font-size:23px;font-weight:850;letter-spacing:-1px}.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}.main-nav a{font-size:14px;font-weight:600;padding:30px 0;position:relative;color:var(--muted)}.main-nav a:hover,.main-nav a.active{color:var(--primary)}.main-nav a.active:after{content:"";position:absolute;bottom:18px;left:0;width:18px;height:3px;background:var(--primary);border-radius:4px}.language-switch{border:1px solid var(--border);border-radius:100px;padding:3px;display:flex}.language-switch button{border:0;background:transparent;padding:5px 11px;font-size:12px;border-radius:100px;color:var(--muted)}.language-switch button[aria-pressed="true"]{background:var(--primary);color:white}.language-switch button:hover{box-shadow:inset 0 0 0 1px var(--border)}.menu-toggle{display:none;border:1px solid var(--border);background:white;border-radius:10px;padding:6px 12px;font-size:14px}
section{position:relative;padding:84px 0}.section-line{border-top:1px solid var(--border)}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;display:flex;align-items:center;gap:10px;margin-bottom:20px}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}h1,h2,h3,p{margin:0}h2{font-size:clamp(28px,3.3vw,44px);line-height:1.35;font-weight:750;letter-spacing:-1.5px}h3{font-size:19px;font-weight:700;line-height:1.6}.section-copy{max-width:670px;color:var(--muted);font-size:15px;line-height:1.95;margin-top:22px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}.section-index{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:30px;min-height:52px;padding:12px 24px;border-radius:100px;font-weight:700;font-size:14px;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}.btn-primary{background:var(--accent);color:var(--primary)}.btn:hover{transform:translateY(-3px);box-shadow:0 8px 22px #0002}.btn:active{transform:translateY(0)}.badge{display:inline-flex;border:1px solid var(--border);border-radius:100px;padding:5px 12px;font-size:12px;color:var(--muted);background:white}.card{border:1px solid var(--border);border-radius:var(--radius);background:var(--white);padding:30px;transition:transform .25s,box-shadow .25s,border-color .25s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b5c4ad}.card p{font-size:14px;color:var(--muted);margin-top:13px;line-height:1.9}.card-number{font-size:12px;color:#7d887f;display:block;margin-bottom:35px}
.topic-hero{padding:70px 0 0;text-align:center;background:white;overflow:hidden}.topic-hero .eyebrow{justify-content:center}.topic-hero h1{font-size:clamp(38px,5.8vw,72px);font-weight:800;letter-spacing:-3px;line-height:1.2}.hero-intro{max-width:680px;margin:24px auto 28px;color:var(--muted);font-size:15px}.topic-search{max-width:660px;margin:auto;display:flex;align-items:center;background:var(--paper);border:1px solid var(--border);border-radius:100px;padding:7px 7px 7px 24px;box-shadow:var(--shadow)}.topic-search input{width:100%;min-width:0;background:transparent;border:0;outline:none;padding:9px 10px;color:var(--text)}.topic-search:focus-within{border-color:#8ba84a}.topic-search .btn{flex-shrink:0;min-height:44px;background:var(--primary);color:white;padding:9px 23px}.hot-topics{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin:20px 0 40px}.hot-topics a{border:1px solid var(--border);border-radius:100px;padding:5px 13px;font-size:12px;color:var(--muted)}.hot-topics a:hover{background:var(--accent);color:var(--primary)}.indicator-bar{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--border);text-align:left}.indicator{padding:26px 30px;border-right:1px solid var(--border)}.indicator:first-child{padding-left:0}.indicator:last-child{border-right:0}.indicator strong{display:block;font-size:24px;font-weight:750}.indicator span{font-size:12px;color:var(--muted)}
.matrix-row{display:grid;grid-template-columns:65px 220px 1fr auto;gap:28px;align-items:center;padding:26px 0;border-bottom:1px solid var(--border)}.matrix-row:first-child{border-top:1px solid var(--border)}.matrix-row p{color:var(--muted);font-size:14px}.matrix-row .number{font-size:13px;color:var(--muted)}.compare-panel{border-radius:var(--radius);padding:32px;border:1px solid var(--border);background:white}.compare-panel.emphasis{background:var(--primary);color:white;border-color:var(--primary)}.compare-list{padding:0;margin:25px 0 0;list-style:none}.compare-list li{padding:17px 0;border-top:1px solid var(--border);font-size:14px;display:flex;gap:15px}.emphasis .compare-list li{border-color:#ffffff25;color:#d8e1dc}.compare-list span{flex-shrink:0;color:#879b6b}.timeline-item{border-top:2px solid var(--primary);padding-top:23px}.timeline-item span{font-size:12px;color:var(--muted)}.timeline-item h3{margin:13px 0}.timeline-item p{font-size:14px;color:var(--muted)}
.image-card{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--primary);min-height:360px}.image-card img{width:100%;height:100%;min-height:360px;object-fit:cover;opacity:.55;transition:transform .5s}.image-card:hover img{transform:scale(1.04)}.image-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,#112c26ed)}.image-caption{position:absolute;left:30px;right:30px;bottom:30px;z-index:1;color:white}.image-caption p{font-size:13px;margin-top:8px;color:#d1dbd5}.update-note{padding:22px 0;border-bottom:1px solid var(--border)}.update-note:first-child{padding-top:0}.update-note p{font-size:14px;color:var(--muted);margin-top:9px}.update-note .badge{margin-bottom:9px}
.dark-block{background:var(--primary);color:white}.dark-block .section-copy{color:#b9c9c0}.safety-item{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid #ffffff25}.safety-item:last-child{border-bottom:0}.safety-item p{font-size:14px;color:#b9c9c0;margin-top:9px}.safety-number{color:var(--accent);font-size:13px;padding-top:4px}
.faq-list{border-top:1px solid var(--border)}.faq-list details{border-bottom:1px solid var(--border);padding:23px 0}.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;font-size:17px;font-weight:650}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";font-size:22px;font-weight:400;line-height:1.4}.faq-list details[open] summary:after{content:"−"}.faq-list details[open] summary{color:#526c29}.faq-list details p{color:var(--muted);font-size:14px;line-height:2;margin-top:18px;max-width:820px}.search-message{font-size:14px;color:var(--muted);margin-bottom:20px}.cta-panel{background:var(--accent);padding:48px;border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:35px}.cta-panel p{font-size:14px;margin-top:15px;max-width:680px;color:#435734}.cta-panel .btn{background:var(--primary);color:white;white-space:nowrap}
.site-footer{padding:60px 0 22px;background:var(--primary);color:white}.footer-top{display:grid;grid-template-columns:1.4fr 1fr;gap:80px;padding-bottom:45px}.footer-description{max-width:540px;color:#b9c9c0;font-size:13px;margin-top:22px;line-height:2}.footer-links{display:flex;justify-content:flex-end;align-content:flex-start;flex-wrap:wrap;gap:18px 26px;padding-top:10px;font-size:13px;color:#d6dfd9}.footer-links a:hover{color:var(--accent)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff25;padding-top:24px;font-size:11px;color:#aebfb5}
@media(min-width:1024px){.matrix-row:hover{background:#edf1e5}.matrix-row{transition:background .2s}}
@media(max-width:1024px){.header-inner{gap:24px}.matrix-row{grid-template-columns:40px 180px 1fr;gap:20px}.matrix-row .badge{display:none}.footer-top{gap:40px}.topic-hero h1{letter-spacing:-2px}}
@media(max-width:768px){.container{width:calc(100% - 40px)}section{padding:60px 0}.header-inner{min-height:76px;gap:15px;flex-wrap:wrap}.brand-name{font-size:21px}.menu-toggle{display:block;margin-left:auto}.language-switch{margin-left:0}.main-nav{display:none;order:4;width:100%;margin:0;gap:25px;border-top:1px solid var(--border)}.main-nav.is-open{display:flex}.main-nav a{padding:16px 0}.main-nav a.active:after{bottom:7px}.section-head{display:block;margin-bottom:28px}.section-index{display:none}.topic-hero{padding-top:55px}.indicator{padding:22px 16px}.indicator strong{font-size:20px}.matrix-row{grid-template-columns:30px 1fr;gap:10px 20px}.matrix-row p{grid-column:2}.footer-top{grid-template-columns:1fr;gap:25px}.footer-links{justify-content:flex-start}.footer-bottom{flex-direction:column;gap:8px}.cta-panel{padding:32px;align-items:flex-start;flex-direction:column}}
@media(max-width:520px){.container{width:calc(100% - 32px)}.brand-icon{width:32px;height:32px;font-size:18px}.brand-name{font-size:19px}.language-switch button{padding:4px 8px;font-size:11px}.header-inner{gap:11px}.menu-toggle{font-size:12px;padding:5px 9px}.topic-hero h1{font-size:36px;letter-spacing:-1.8px}.hero-intro{font-size:14px}.topic-search{padding-left:12px}.topic-search input{font-size:13px}.topic-search .btn{padding:9px 15px;font-size:13px}.indicator-bar{grid-template-columns:1fr;text-align:left}.indicator,.indicator:first-child{padding:16px 0;border-right:0;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:15px}.indicator:last-child{border-bottom:0}.indicator strong{font-size:18px}.indicator span{font-size:11px}.card,.compare-panel{padding:24px}.image-card,.image-card img{min-height:300px}.faq-list summary{font-size:15px}.cta-panel{padding:26px}.footer-bottom{font-size:10px}h2{letter-spacing:-.8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}