/* roulang page: index */
:root{--ink:#122f35;--muted:#657876;--accent:#187b70;--bg:#f5f7f5;--line:#dce5df;--radius:20px;--shadow:0 12px 36px #122f3508}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8}a{color:inherit;text-decoration:none;transition:color .2s,background .2s}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img{display:block;width:100%;object-fit:cover}h1,h2,h3,p{margin:0}h2{font-size:clamp(24px,3vw,32px);line-height:1.4;font-weight:750;letter-spacing:-.6px}h3{font-weight:700;font-size:18px;line-height:1.5}p{color:var(--muted)}:focus-visible{outline:3px solid #74bca3;outline-offset:5px}a:hover{color:var(--accent)}button:active,.btn:active{transform:translateY(1px)}.container{width:min(1180px,calc(100% - 48px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:#ffffffed;backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav-wrap{display:flex;align-items:center;gap:32px;min-height:86px}.brand{display:flex;gap:10px;align-items:center;font-size:20px;font-weight:800;white-space:nowrap}.brand-icon{display:grid;place-items:center;width:36px;height:36px;background:var(--ink);color:#d8ed96;border-radius:10px;font-size:20px}.nav-search{flex:1;max-width:490px;margin:auto;display:flex;align-items:center;gap:12px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:8px 14px}.nav-search input{width:100%;min-width:0;background:transparent;border:0;outline:none;font-size:14px}.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #187b7012}.nav-links{display:flex;align-items:center;gap:24px;white-space:nowrap;font-size:14px;font-weight:600}.nav-links a{padding:8px 0}.nav-links .active{color:var(--accent);border-bottom:2px solid var(--accent)}.hero{position:relative;overflow:hidden;background:var(--ink);color:white;padding:76px 0 64px}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#102b32eF,#102b32d9),url('/assets/images/bf3e43c4b85ad24a.png') center/cover}.hero .container{position:relative}.hero p{color:#c6d7d5}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--accent);margin-bottom:15px}.hero .eyebrow{color:#d8ed96}.hero-search{display:flex;gap:10px;background:white;border:1px solid #ffffff40;padding:8px;border-radius:15px;margin:30px auto 18px;max-width:720px;box-shadow:0 16px 40px #0002}.hero-search input{width:100%;min-width:0;color:var(--ink);padding:10px 14px;border:0;background:transparent;outline:none}.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;padding:11px 22px;border:1px solid transparent;border-radius:10px;background:var(--accent);color:white;font-weight:650;font-size:14px;white-space:nowrap;transition:.2s}.btn:hover{background:#105f55;color:white;box-shadow:0 6px 18px #187b7020}.btn.light{background:#d8ed96;color:var(--ink)}.badge{display:inline-flex;align-items:center;border-radius:6px;font-size:12px;font-weight:600;background:#e8f2ec;color:#286851;padding:4px 9px}.hero-links{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;font-size:13px;color:#dae5e3}.hero-links a{padding:4px 12px;border:1px solid #ffffff30;border-radius:6px}.hero-links a:hover{background:#ffffff18;color:white}.section{padding:64px 0;border-bottom:1px solid var(--line)}.section.white{background:white}.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:36px;margin-bottom:28px}.section-head>p{max-width:620px;font-size:15px}.card{border:1px solid var(--line);background:white;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-3px);box-shadow:0 14px 35px #122f3510}.card p{font-size:14px;margin-top:12px}.metric{border-right:1px solid var(--line);padding:8px 28px}.metric:last-child{border:0}.metric strong{display:block;font-size:28px;line-height:1.4;font-weight:750}.metric p{font-size:13px;margin-top:9px}.metric span{display:block;color:var(--accent);font-size:12px;margin-bottom:9px}.icon{width:42px;height:42px;display:grid;place-items:center;background:#edf4ed;border-radius:12px;color:var(--accent);font-weight:800;margin-bottom:22px}.matrix{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:white}.matrix-row{display:grid;grid-template-columns:1fr 1.45fr 1.35fr;gap:24px;padding:21px 25px;border-bottom:1px solid var(--line);font-size:14px;align-items:center}.matrix-row:last-child{border:0}.matrix-row.heading{background:#eaf0e9;font-weight:700;font-size:12px;color:#526762}.matrix-row p{font-size:14px}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.step{border-top:2px solid var(--line);padding-top:22px}.step b{color:var(--accent);font-size:13px}.step h3{margin:12px 0}.step p{font-size:14px}.cover{aspect-ratio:16/9;transition:transform .4s}.cover-wrap{overflow:hidden;border-radius:15px;margin-bottom:20px}.article:hover .cover{transform:scale(1.035)}.dark{background:var(--ink);color:white}.dark p{color:#bccfcb}.proof{border:1px solid #ffffff25;border-radius:14px;padding:22px}.proof h3{font-size:16px;color:#dfedb9}.notice{padding:16px 20px;border-left:3px solid var(--accent);background:#edf3ed;border-radius:0 10px 10px 0;font-size:14px;color:#4c645d}.quick-row{padding:22px 0;display:grid;grid-template-columns:230px 1fr;gap:32px;border-bottom:1px solid var(--line)}.quick-row:last-child{border:0}.quick-row p{font-size:15px}details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;font-weight:650;gap:20px}summary:after{content:"＋";color:var(--accent)}details[open] summary:after{content:"−"}details p{margin-top:14px;font-size:15px;max-width:850px}.form-field{display:flex;flex-direction:column;gap:9px;font-size:14px;font-weight:600}.form-field select{width:100%;border:1px solid #cfdbd1;background:white;padding:12px;border-radius:10px;color:var(--ink)}.site-footer{padding:40px 0;background:#edf1ed;font-size:13px;color:var(--muted)}.footer-line{display:flex;justify-content:space-between;gap:24px;align-items:center}.search-results{display:none;background:white;color:var(--ink);padding:20px;border:1px solid var(--line);border-radius:14px;max-width:720px;margin:20px auto;text-align:left}.search-results.show{display:block}.search-results a{display:block;padding:9px 0;border-bottom:1px solid var(--line)}.search-results p{color:var(--muted);font-size:14px}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#b4cd71;margin-right:8px}
@media(max-width:1024px){.nav-wrap{gap:20px}.nav-search{max-width:360px}.section-head{flex-direction:column;gap:15px}.section-head>p{max-width:850px}.metric{padding:8px 18px}.timeline{gap:18px}}
@media(max-width:768px){.container{width:calc(100% - 32px)}.nav-wrap{flex-wrap:wrap;padding:14px 0;gap:12px}.nav-search{order:3;max-width:none;flex-basis:100%}.nav-links{margin-left:auto;gap:18px}.hero{padding:48px 0}.section{padding:44px 0}.timeline{grid-template-columns:repeat(2,1fr);gap:28px}.metric:nth-child(2){border:0}.metric{margin:12px 0}.matrix-row{gap:14px;padding:18px;font-size:13px}.quick-row{grid-template-columns:1fr;gap:10px}.footer-line{flex-direction:column;align-items:flex-start}}
@media(max-width:520px){.brand{font-size:17px}.brand-icon{width:30px;height:30px}.nav-links{gap:13px;font-size:13px}.hero-search{padding:6px;gap:2px}.hero-search input{font-size:13px;padding:8px}.btn{padding:11px 15px}.matrix-row{grid-template-columns:1fr;gap:8px}.matrix-row.heading{display:none}.card{padding:22px}.metric strong{font-size:22px}.timeline{grid-template-columns:1fr}.hero-links{gap:8px}.section-head{gap:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* roulang page: category1 */
:root{--ink:#122f35;--muted:#657876;--accent:#187b70;--bg:#f5f7f5;--line:#dce5df;--radius:20px;--shadow:0 12px 36px #122f3508}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:115px}body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8}a{color:inherit;text-decoration:none;transition:color .2s,background .2s}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img{display:block;width:100%;object-fit:cover}a:hover{color:var(--accent)}button:active,.btn:active{transform:translateY(1px)}:focus-visible{outline:3px solid #91bd8d;outline-offset:4px}p{color:var(--muted)}h1,h2,h3{font-weight:750;line-height:1.4}h2{font-size:28px}h3{font-size:18px}.container{width:min(1180px,calc(100% - 48px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:#ffffffed;backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav-wrap{display:flex;align-items:center;gap:32px;min-height:86px}.brand{display:flex;gap:10px;align-items:center;font-size:20px;font-weight:800;white-space:nowrap}.brand-icon{display:grid;place-items:center;width:36px;height:36px;background:var(--ink);color:#d8ed96;border-radius:10px;font-size:20px}.nav-search{flex:1;max-width:490px;margin:auto;display:flex;align-items:center;gap:12px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:8px 14px}.nav-search input{width:100%;min-width:0;background:transparent;border:0;outline:none;font-size:14px}.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #187b7012}.nav-links{display:flex;align-items:center;gap:24px;white-space:nowrap;font-size:14px;font-weight:600}.nav-links a{padding:8px 0}.nav-links .active{color:var(--accent);border-bottom:2px solid var(--accent)}.hero{padding:46px 0 44px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--accent);margin-bottom:15px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;padding:11px 22px;border:1px solid transparent;border-radius:10px;background:var(--accent);color:white;font-weight:650;font-size:14px;white-space:nowrap;transition:.2s}.btn:hover{background:#105f55;color:white;box-shadow:0 6px 18px #187b7020}.btn.light{background:#d8ed96;color:var(--ink)}.badge{display:inline-flex;align-items:center;border-radius:6px;font-size:12px;font-weight:600;background:#e8f2ec;color:#286851;padding:4px 9px}.section{padding:60px 0;border-bottom:1px solid var(--line)}.section.white{background:white}.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:36px;margin-bottom:28px}.section-head>p{max-width:580px;font-size:15px}.card{border:1px solid var(--line);background:white;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-3px);box-shadow:0 14px 35px #122f3510}.card p{font-size:14px;margin-top:12px}.matrix-row{display:grid;grid-template-columns:1fr 1.45fr 1.35fr;gap:24px;padding:21px 25px;border-bottom:1px solid var(--line);font-size:14px;align-items:center}.matrix-row:last-child{border:0}.matrix-row.heading{background:#eaf0e9;font-weight:700;font-size:12px;color:#526762}.quick-row{padding:22px 0;display:grid;grid-template-columns:230px 1fr;gap:32px;border-bottom:1px solid var(--line)}.quick-row:last-child{border:0}.quick-row p{font-size:15px}.form-field{display:flex;flex-direction:column;gap:9px;font-size:14px;font-weight:600}.form-field select{width:100%;border:1px solid #cfdbd1;background:white;padding:12px;border-radius:10px;color:var(--ink)}.site-footer{padding:40px 0;background:#edf1ed;font-size:13px;color:var(--muted)}.footer-line{display:flex;justify-content:space-between;gap:24px;align-items:center}.search-results{display:none;background:white;color:var(--ink);padding:20px;border:1px solid var(--line);border-radius:14px;margin:18px auto}.search-results.show{display:block}.search-results a{display:block;padding:9px 0;border-bottom:1px solid var(--line)}.search-results p{font-size:14px}
.bento{display:grid;grid-template-columns:1.6fr 1fr;gap:18px}.hero-main{grid-row:span 2;background:var(--ink);color:white;border-radius:24px;padding:40px;position:relative;overflow:hidden}.hero-main:before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,#122f35f5,#122f35d9),url('/assets/images/bf3e43c4b85ad24a.png') center/cover}.hero-main>*{position:relative}.hero-main p{color:#c6d7d5}.hero-main .eyebrow{color:#d8ed96}.hero-mini{padding:25px 28px;border:1px solid var(--line);border-radius:20px;background:white}.hero-mini strong{font-size:23px}.hero-cta{grid-column:1/-1;border-radius:14px;background:#e8eee3;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.metric-line{display:flex;gap:30px;border-top:1px solid #ffffff25;margin-top:30px;padding-top:22px}.metric-line strong{display:block;font-size:24px;color:#d8ed96}.metric-line span{font-size:12px;color:#c6d7d5}.step{position:relative;padding:0 22px;border-left:2px solid var(--line)}.step b{display:block;color:var(--accent);font-size:13px;margin-bottom:14px}.step p{font-size:14px;margin-top:12px}.article-image{border-radius:18px;height:270px}.news-item{padding:20px 0;border-bottom:1px solid var(--line)}.news-item:first-child{padding-top:0}.news-item p{font-size:14px;margin-top:8px}.assurance{background:var(--ink);color:white;border-radius:24px;padding:36px}.assurance p{color:#c6d7d5}.faq details{background:white;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:0 22px}.faq summary{cursor:pointer;font-weight:650;padding:20px 0;display:flex;justify-content:space-between;gap:20px;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--accent)}.faq details[open] summary:after{content:"−"}.faq details[open]{border-color:#9bbcaf}.faq details p{padding-bottom:22px;font-size:14px}.preference-result{border-left:3px solid var(--accent);padding:16px 20px;background:#edf4ed;margin-top:22px;border-radius:0 12px 12px 0;font-size:14px}.index-tag{font-size:12px;padding:6px 12px;border:1px solid var(--line);border-radius:8px;background:white}.index-tag:hover{border-color:var(--accent)}
@media(max-width:1024px){.nav-wrap{gap:20px}.nav-search{max-width:360px}.section-head{flex-direction:column;gap:15px}.hero-main{padding:30px}.bento{grid-template-columns:1.3fr 1fr}}
@media(max-width:768px){.container{width:calc(100% - 32px)}.nav-wrap{flex-wrap:wrap;padding:14px 0;gap:12px}.nav-search{order:3;max-width:none;flex-basis:100%}.nav-links{margin-left:auto;gap:18px}.hero{padding:30px 0}.section{padding:44px 0}.bento{grid-template-columns:1fr 1fr}.hero-main{grid-column:1/-1;grid-row:auto}.hero-mini{padding:20px}.hero-cta{align-items:flex-start;flex-direction:column}.matrix-row{gap:14px;padding:18px}.quick-row{grid-template-columns:1fr;gap:10px}.footer-line{flex-direction:column;align-items:flex-start}html{scroll-padding-top:145px}}
@media(max-width:520px){.brand{font-size:17px}.brand-icon{width:30px;height:30px}.nav-links{gap:13px;font-size:13px}.btn{padding:11px 15px}.matrix-row{grid-template-columns:1fr;gap:8px}.matrix-row.heading{display:none}.card{padding:22px}.hero-main{padding:26px}.hero-mini strong{font-size:19px}.hero-mini{padding:17px}.metric-line{gap:24px}.assurance{padding:26px}h2{font-size:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}