/* roulang page: index */
:root{--bg:#fff7f0;--surface:#fff;--surface2:#fff1e6;--ink:#241a16;--ink2:#5c4a42;--ink3:#8c7a71;--line:#f0dfd2;--primary:#f0743a;--primary600:#d95a26;--primary100:#ffe6d8;--accent:#14a89a;--accent100:#d9f4f0;--shadow:0 8px 22px rgba(36,26,22,.07);--font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;--num:ui-monospace,SFMono-Regular,Menlo,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.8;letter-spacing:.01em}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;border:0;cursor:pointer}img{max-width:100%;display:block}.container{width:min(1200px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:16px;top:-60px;background:var(--ink);color:#fff;padding:8px 14px;z-index:20}.skip:focus{top:12px}.site-header{position:sticky;top:0;z-index:10;background:rgba(255,247,240,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.nav-wrap{height:72px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:10px;min-width:205px}.brand-mark{width:40px;height:40px;border-radius:8px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800}.brand-name{font-weight:800;font-size:17px;line-height:1.2}.brand-sub{display:block;color:var(--ink3);font-size:11px;margin-top:2px}.nav-links{display:flex;align-items:center;gap:20px;flex:1}.nav-links a{font-size:13px;color:var(--ink2);padding:22px 0;border-bottom:2px solid transparent;white-space:nowrap}.nav-links a:hover,.nav-links a.active{color:var(--primary600);border-color:var(--primary)}.nav-actions{display:flex;align-items:center;gap:10px}.version{font:12px var(--num);color:var(--accent);background:var(--accent100);padding:3px 7px;border-radius:4px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 18px;border-radius:8px;font-weight:700;transition:.18s ease}.btn-primary{background:var(--primary600);color:#fff}.btn-primary:hover{background:#b9471d;transform:translateY(-1px)}.btn-outline{border:1px solid var(--line);background:var(--surface);color:var(--ink)}.btn-outline:hover{background:var(--surface2);border-color:var(--primary)}.btn-white{background:#fff;color:var(--ink)}.btn-white:hover{background:var(--primary100);transform:translateY(-1px)}.btn-lg{min-height:48px;padding:0 22px}.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.menu-toggle{display:none;background:transparent;width:44px;height:44px}.menu-toggle span,.menu-toggle span:before,.menu-toggle span:after{display:block;width:22px;height:2px;background:var(--ink);content:"";margin:auto;position:relative;transition:.2s}.menu-toggle span:before{position:absolute;top:-7px}.menu-toggle span:after{position:absolute;top:7px}
main{overflow:hidden}.hero{padding:78px 0 66px;background-image:radial-gradient(var(--line) 1px,transparent 1px);background-size:18px 18px}.hero-inner{max-width:900px;margin:auto;text-align:center}.eyebrow{display:inline-block;color:var(--primary600);background:var(--primary100);border-radius:4px;padding:3px 9px;font-size:13px;font-weight:700;margin-bottom:16px}.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.2;margin:0 auto 18px;letter-spacing:.02em}.hero h1 em{font-style:normal;color:var(--primary600);border-bottom:4px solid var(--primary100)}.hero p{max-width:700px;margin:0 auto 26px;color:var(--ink2);font-size:17px}.hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.hero-search{margin:34px auto 0;max-width:650px;display:flex;background:#fff;border:1px solid var(--line);padding:6px;border-radius:10px;box-shadow:var(--shadow)}.hero-search input{flex:1;border:0;background:transparent;padding:10px 14px;min-width:0;color:var(--ink);font-size:15px;outline:0}.hero-search button{padding:0 20px;border-radius:7px;background:var(--ink);color:#fff}.quick-links{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:16px}.quick-links a{font-size:13px;color:var(--ink2);border-bottom:1px dashed var(--primary)}section{padding:70px 0;scroll-margin-top:88px}.section-alt{background:var(--surface2)}.sec-head{display:flex;align-items:end;gap:12px;margin-bottom:24px}.sec-head:before{content:"";width:4px;height:22px;background:var(--primary);border-radius:2px;flex:none}.sec-head h2{font-size:28px;line-height:1.3;margin:0;letter-spacing:.02em}.sec-head small{color:var(--ink3);font:12px var(--num);letter-spacing:.08em}.section-intro{max-width:680px;color:var(--ink2);margin:-8px 0 26px}.directory-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:20px}.directory-main,.index-box,.value-card,.step,.resource,.quote,.scenario,.faq details{background:var(--surface);border:1px solid var(--line);border-radius:6px}.directory-main{padding:24px}.directory-main h3{margin:0 0 12px;font-size:20px}.directory-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 28px;margin:0;padding:0;list-style:none}.directory-list li{border-bottom:1px dashed var(--line);padding:10px 0;color:var(--ink2)}.directory-list b{color:var(--primary600);font-family:var(--num);margin-right:8px}.index-box{padding:22px;background:var(--ink);color:#fff}.index-box h3{margin:0 0 12px;color:#fff}.index-box p{color:#d9ccc4;font-size:14px}.index-box a{display:inline-block;margin-top:8px;color:#9de3da;font-size:14px}.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.value-card{padding:22px}.value-icon{width:38px;height:38px;display:grid;place-items:center;background:var(--primary100);color:var(--primary600);border-radius:6px;font-weight:800;font-size:18px}.value-card h3{font-size:18px;margin:14px 0 6px}.value-card p,.scenario p,.resource p,.quote p{color:var(--ink2);font-size:14px;margin:0}.chart{background:var(--surface);border:1px solid var(--line);padding:24px;border-radius:6px}.chart-row{display:grid;grid-template-columns:130px 1fr 90px;align-items:center;gap:16px;margin:17px 0;color:var(--ink2);font-size:14px}.bar{height:10px;background:var(--accent100);border-radius:4px;overflow:hidden}.bar i{display:block;height:100%;background:var(--accent);border-radius:4px}.chart-row strong{color:var(--accent);font-family:var(--num);text-align:right}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.resource{padding:0;overflow:hidden;transition:.2s}.resource:hover,.value-card:hover,.scenario:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.resource-cover{height:108px;background:linear-gradient(135deg,var(--surface2),var(--primary100));display:grid;place-items:center;color:var(--primary600);font-size:28px;font-weight:800}.resource-body{padding:17px}.tag{display:inline-block;background:var(--accent100);color:var(--accent);font-size:12px;padding:2px 7px;border-radius:4px;margin-bottom:8px}.resource h3{font-size:17px;line-height:1.4;margin:0 0 7px}.resource-link{display:inline-block;margin-top:12px;color:var(--primary600);font-size:13px;font-weight:700}.rank-box{border:1px solid var(--line);background:var(--surface);border-radius:6px;overflow:auto}.rank-row{min-width:620px;display:grid;grid-template-columns:55px 1fr 160px 90px 90px;align-items:center;min-height:55px;padding:0 18px;border-bottom:1px solid var(--line);font-size:14px}.rank-row:last-child{border:0}.rank-row:nth-child(even){background:var(--surface2)}.rank-head{font-weight:700;color:var(--ink3);font-size:12px}.rank-num{font:18px var(--num);color:var(--primary600)}.rank-type{display:inline-block;background:var(--surface2);padding:2px 7px;border-radius:12px;font-size:12px;width:max-content}.rank-hot{color:var(--accent);font-weight:700}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.step{padding:20px;position:relative}.step:not(:last-child):after{content:"";position:absolute;top:36px;right:-21px;width:21px;border-top:2px dashed var(--line)}.step-no{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:#fff;font:14px var(--num)}.step h3{font-size:17px;margin:14px 0 5px}.step p{font-size:14px;color:var(--ink2);margin:0}.stats{display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface2);border:1px solid var(--line)}.stat{text-align:center;padding:25px 12px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat strong{display:block;color:var(--accent);font:700 26px var(--num)}.stat span{font-size:13px;color:var(--ink2)}.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.quote{padding:22px}.quote-mark{font-size:30px;color:var(--primary);line-height:1}.quote p{font-size:15px;margin:8px 0 17px}.quote cite{font-style:normal;font-size:13px;color:var(--ink3)}.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.scenario{padding:18px}.scenario h3{font-size:16px;margin:0 0 5px}.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 28px;background:var(--surface);border:1px solid var(--line);padding:0 20px}.news-item{padding:18px 0;border-bottom:1px dashed var(--line)}.news-item h3{font-size:16px;line-height:1.45;margin:5px 0}.news-item p{font-size:13px;color:var(--ink2);margin:0}.news-date{font:12px var(--num);color:var(--ink3)}.faq{max-width:850px;margin:auto}.faq details{margin-top:-1px;border-radius:0;padding:0 20px}.faq details:first-child{border-radius:6px 6px 0 0}.faq details:last-child{border-radius:0 0 6px 6px}.faq summary{list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;font-weight:700}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--primary);font-size:22px;font-weight:400}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--ink2);font-size:14px;margin:0 0 17px}.cta{background:var(--ink);color:#fff;text-align:center;padding:68px 20px}.cta .mini{color:#9de3da;font:12px var(--num);letter-spacing:.08em}.cta h2{font-size:30px;line-height:1.35;margin:14px auto 10px}.cta p{color:#d9ccc4;max-width:560px;margin:0 auto 24px}.site-footer{background:var(--surface2);border-top:1px solid var(--line);padding:50px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:30px}.footer-brand p{font-size:13px;color:var(--ink2);max-width:260px}.footer-title{font-size:14px;font-weight:700;margin:0 0 10px}.footer-links{display:grid;gap:6px}.footer-links a{font-size:13px;color:var(--ink2)}.footer-links a:hover{color:var(--primary600)}.copyright{border-top:1px dashed var(--line);margin-top:35px;padding-top:16px;color:var(--ink3);font-size:12px;display:flex;justify-content:space-between}
@media(max-width:1024px){.nav-links{gap:11px}.nav-links a{font-size:12px}.brand{min-width:180px}.directory-grid{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.step:nth-child(2):after{display:none}}
@media(max-width:768px){.container{width:calc(100% - 32px)}.nav-wrap{height:64px}.brand{min-width:0;flex:1}.brand-name{font-size:15px}.brand-sub,.version,.nav-actions .btn{display:none}.menu-toggle{display:block}.nav-links{position:absolute;top:64px;left:0;right:0;background:var(--bg);display:block;max-height:0;overflow:hidden;transition:max-height .25s;border-bottom:1px solid transparent}.site-header.open .nav-links{max-height:420px;border-color:var(--line);padding:8px 16px}.nav-links a{display:block;padding:11px 8px;border-bottom:1px solid var(--line);font-size:14px}.nav-actions{gap:0}.hero{padding:54px 0 48px}.hero p{font-size:16px;text-align:left}.hero-search{margin-top:27px}.hero-search button{padding:0 13px}.sec-head h2{font-size:23px}.section-intro{font-size:15px}.value-grid,.resource-grid,.quote-grid{grid-template-columns:1fr}.directory-list{grid-template-columns:1fr}.chart-row{grid-template-columns:105px 1fr 65px;gap:9px}.steps{grid-template-columns:1fr}.step:not(:last-child):after{display:none}.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.scenario-grid{grid-template-columns:repeat(2,1fr)}.news-grid{grid-template-columns:1fr;padding:0 16px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1/-1}.copyright{display:block;text-align:center;line-height:2.1}.cta h2{font-size:24px}}
@media(max-width:480px){.hero h1{font-size:30px}.hero-actions .btn{width:100%}.hero-search input{width:100%;font-size:13px}.hero-search button{font-size:13px}.scenario-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.rank-row{grid-template-columns:40px 1fr 90px 70px 70px;padding:0 10px}.rank-head{font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}.resource:hover,.value-card:hover,.scenario:hover{transform:none}}