/* roulang page: index */
:root{--ink:#173a34;--text:#304d47;--muted:#687c75;--paper:#fbfcf8;--white:#fff;--soft:#eff3eb;--line:#dce4d9;--accent:#d5e8a8;--green:#285e4d;--sand:#f3eddf;--radius:22px;--shadow:0 15px 40px rgba(24,57,45,.07);--width:1160px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:95px}
body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.85;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
a,button,summary{transition:background .2s,color .2s,transform .2s,box-shadow .2s}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #86ad55;outline-offset:5px}
a:active,button:active{transform:translateY(1px)}
::selection{background:var(--accent);color:var(--ink)}
h1,h2,h3,p{margin:0}
h1,h2,h3{color:var(--ink);line-height:1.4}
h2{font-size:32px;font-weight:650;letter-spacing:-.8px}
h3{font-size:19px;font-weight:650}
p{margin-top:15px}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:min(var(--width),calc(100% - 56px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(251,252,248,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
.header-inner{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--ink);font-size:21px;font-weight:750;white-space:nowrap;letter-spacing:1px}
.logo-mark{width:35px;height:40px;display:grid;place-items:center;background:var(--ink);color:var(--accent);clip-path:polygon(50% 0,95% 17%,90% 70%,50% 100%,10% 70%,5% 17%);font-size:20px}
nav{display:flex;align-items:center;gap:8px}
nav a{font-size:14px;padding:9px 17px;border-radius:100px;color:var(--muted)}
nav a:hover{background:var(--soft);color:var(--ink)}
nav a.active{background:var(--ink);color:white}
section{padding:80px 0;border-bottom:1px solid var(--line)}
.eyebrow{font-size:12px;letter-spacing:2px;color:var(--green);font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:17px}
.eyebrow:before{content:"";width:24px;height:1px;background:currentColor}
.hero{padding:58px 0 0;background:var(--soft);overflow:hidden}
.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:36px;display:flex;gap:12px}
.hero-content{position:relative;max-width:960px;margin:auto;text-align:center;padding:0 0 48px}
.hero .eyebrow{justify-content:center}
h1{font-size:clamp(34px,4.7vw,59px);letter-spacing:-2px;line-height:1.3;font-weight:650}
h1 span{display:block;color:var(--green)}
.hero-copy{max-width:790px;margin:24px auto 0;font-size:16px;line-height:2}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:49px;padding:11px 24px;border:1px solid var(--ink);border-radius:100px;background:var(--ink);color:white;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{background:var(--green);box-shadow:0 7px 20px #153a3420;transform:translateY(-2px)}
.hero .btn{margin-top:26px}
.check-strip{display:flex;justify-content:center;gap:48px;padding:23px 12px;border-top:1px solid #cfdac8;color:var(--ink);font-size:13px}
.check-strip span:before{content:"✓";margin-right:10px;color:var(--green);font-weight:800}
.heading-row{display:flex;justify-content:space-between;align-items:flex-end;gap:50px;margin-bottom:32px}
.section-intro{max-width:590px;font-size:14px;color:var(--muted);margin-top:16px}
.section-number{font-size:12px;color:var(--muted);letter-spacing:2px;white-space:nowrap}
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{padding:28px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.card:hover{border-color:#b4c8ab;box-shadow:var(--shadow)}
.card p{font-size:14px;color:var(--muted);line-height:1.9}
.badge{display:inline-flex;font-size:11px;background:var(--soft);color:var(--green);padding:4px 11px;border-radius:30px;margin-bottom:18px;letter-spacing:1px}
.calendar{display:grid;grid-template-columns:1.1fr 2fr;gap:65px;align-items:start}
.calendar-list{border-top:1px solid var(--line)}
.calendar-item{display:grid;grid-template-columns:90px 1fr;gap:22px;padding:22px 0;border-bottom:1px solid var(--line)}
.calendar-item strong{font-size:13px;color:var(--green);padding-top:3px}
.calendar-item p{font-size:14px;margin-top:7px;color:var(--muted)}
.soft-section{background:var(--soft)}
.topic-feature{grid-column:span 2;background:var(--ink);color:#dbe5dc;position:relative;overflow:hidden;padding:36px}
.topic-feature h3{color:white;font-size:27px;max-width:370px}
.topic-feature p{color:#cfdbd0;max-width:460px}
.topic-feature .badge{background:#ffffff12;color:var(--accent)}
.topic-feature:after{content:"";position:absolute;width:180px;height:180px;border:35px solid #ffffff07;border-radius:50%;right:-70px;bottom:-90px;pointer-events:none}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.reading{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.quote-box{background:var(--sand);border-radius:var(--radius);padding:42px}
.quote-symbol{font-family:Georgia,serif;font-size:76px;line-height:.9;color:#8d9e75}
.quote-box blockquote{margin:14px 0 22px;font-size:27px;line-height:1.65;color:var(--ink)}
.quote-box small{color:var(--muted);font-size:12px}
.mini-list{margin-top:24px}
.mini-list li{padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
.mini-list strong{color:var(--ink);margin-right:10px}
.article-list{border-top:1px solid var(--line)}
.article-row{padding:25px 0;display:grid;grid-template-columns:120px 1fr 100px;gap:25px;border-bottom:1px solid var(--line);align-items:start}
.article-row .label{font-size:12px;color:var(--green);padding-top:3px}
.article-row p{font-size:14px;color:var(--muted);margin-top:9px;max-width:760px}
.article-row .type{font-size:12px;color:var(--muted);text-align:right;padding-top:4px}
.text-link{font-size:13px;border-bottom:1px solid currentColor;padding-bottom:3px;color:var(--green)}
.text-link:hover{color:#71893f}
.resource-card{display:flex;flex-direction:column;align-items:flex-start}
.resource-card .text-link{margin-top:24px}
.resource-icon{display:grid;place-items:center;width:43px;height:43px;border:1px solid var(--line);border-radius:12px;color:var(--green);margin-bottom:22px;font-size:20px}
.dark-section{background:var(--ink);color:#d6e0d8}
.dark-section h2,.dark-section h3{color:#fff}
.dark-section .eyebrow{color:var(--accent)}
.dark-section .section-intro{color:#c2d1c6}
.risk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:35px;border-top:1px solid #ffffff24}
.risk{padding:29px 30px 0 0}
.risk+.risk{padding-left:30px;border-left:1px solid #ffffff24}
.risk b{font-size:38px;font-weight:500;color:var(--accent);line-height:1.4}
.risk p{font-size:14px;color:#c2d1c6}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;margin-top:34px}
.step{position:relative;padding-top:22px;border-top:2px solid #b5c6a6}
.step .num{font-size:12px;letter-spacing:2px;color:var(--green);display:block;margin-bottom:15px}
.step p{font-size:14px;color:var(--muted)}
.guard-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}
.guard{display:flex;gap:18px;padding:24px;background:white;border:1px solid var(--line);border-radius:16px}
.guard i{font-style:normal;color:var(--green);font-size:20px}
.guard p{font-size:14px;color:var(--muted);margin-top:7px}
.final-panel{background:var(--sand);padding:45px;border-radius:26px;display:grid;grid-template-columns:1.25fr 1fr;gap:55px}
.final-panel p{font-size:14px;color:var(--muted)}
.contact-links{display:flex;flex-direction:column;justify-content:center;gap:12px}
.contact-link{padding:16px 20px;display:flex;justify-content:space-between;align-items:center;border:1px solid #d5d7c8;border-radius:12px;font-size:14px;background:#ffffff70}
.contact-link:hover{background:white;border-color:var(--green)}
.notice{font-size:12px!important;padding-top:22px;border-top:1px solid var(--line);margin-top:26px!important}
footer{padding:45px 0 25px;background:#f1f4ed}
.footer-top{display:flex;justify-content:space-between;gap:40px;align-items:flex-start}
.footer-top p{font-size:13px;color:var(--muted);max-width:520px}
.footer-note{max-width:300px;font-size:12px;color:var(--muted)}
.footer-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-top:20px;margin-top:30px;font-size:11px;color:var(--muted)}
@media(min-width:1500px){.hero-content{padding-top:20px;padding-bottom:64px}}
@media(max-width:1024px){.container{width:calc(100% - 44px)}section{padding:65px 0}.calendar{gap:35px;grid-template-columns:1fr 1.4fr}.reading{gap:35px}.grid-4{grid-template-columns:repeat(2,1fr)}.topic-feature{padding:28px}.final-panel{gap:30px;padding:32px}h2{font-size:29px}}
@media(max-width:768px){.header-inner{min-height:74px}.logo{font-size:18px;gap:8px}nav{gap:2px}nav a{padding:8px 12px;font-size:12px}section{padding:50px 0}.hero{padding-top:30px}.hero-content{text-align:left;padding-bottom:32px}.hero .eyebrow{justify-content:flex-start}h1{font-size:39px;letter-spacing:-1px}.hero-copy{font-size:15px}.breadcrumb{margin-bottom:27px}.check-strip{gap:16px;justify-content:space-between;font-size:11px}.calendar,.reading,.final-panel{grid-template-columns:1fr;gap:28px}.grid-3,.topic-grid{grid-template-columns:1fr 1fr}.topic-feature{grid-column:span 2}.heading-row{gap:20px}.section-intro{max-width:100%}.article-row{grid-template-columns:80px 1fr;gap:15px}.article-row .type{display:none}.steps{grid-template-columns:1fr 1fr;gap:28px}.risk{padding-right:18px}.risk+.risk{padding-left:18px}.risk b{font-size:30px}.footer-top{flex-direction:column;gap:22px}.footer-note{max-width:100%}}
@media(max-width:520px){.container{width:calc(100% - 32px)}.header-inner{gap:8px;min-height:70px}.logo{font-size:16px;letter-spacing:0}.logo-mark{width:26px;height:31px;font-size:17px}nav a{padding:7px 10px;font-size:11px}h1{font-size:32px}h2{font-size:26px}h3{font-size:18px}.hero-copy{font-size:14px}.check-strip{flex-wrap:wrap;justify-content:flex-start;gap:8px 20px;padding:18px 0}.grid-3,.grid-4,.topic-grid,.guard-grid{grid-template-columns:1fr}.topic-feature{grid-column:auto}.card{padding:24px}.heading-row{align-items:flex-start}.section-number{display:none}.calendar-item{grid-template-columns:66px 1fr;gap:12px}.quote-box{padding:28px}.quote-box blockquote{font-size:24px}.article-row{grid-template-columns:1fr;gap:7px}.risk-grid{grid-template-columns:1fr}.risk,.risk+.risk{border-left:0;padding:22px 0;border-bottom:1px solid #ffffff24}.risk p{margin-top:9px}.risk b{font-size:30px}.steps{gap:24px 18px}.step h3{font-size:17px}.final-panel{padding:25px}.footer-bottom{flex-direction:column;gap:5px}.btn{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* roulang page: category1 */
:root{--ink:#173a34;--text:#304d47;--muted:#687c75;--paper:#fbfcf8;--white:#fff;--soft:#eff3eb;--line:#dce4d9;--accent:#d5e8a8;--green:#285e4d;--sand:#f3eddf;--radius:22px;--shadow:0 15px 40px rgba(24,57,45,.07);--width:1160px}
*{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",system-ui,sans-serif;line-height:1.85;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,ul,ol{margin:0}
h1,h2,h3{color:var(--ink);line-height:1.4}
h1{font-size:clamp(32px,4.4vw,54px);font-weight:750;letter-spacing:-1px}
h2{font-size:clamp(25px,3vw,35px);font-weight:700}
h3{font-size:19px}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
a,button,summary{transition:background .2s,color .2s,transform .2s,box-shadow .2s}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #86ad55;outline-offset:5px}
a:active,button:active{transform:translateY(1px)}
.container{width:min(var(--width),calc(100% - 56px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(251,252,248,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
.header-inner{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--ink);font-size:21px;font-weight:750;white-space:nowrap;letter-spacing:1px}
.logo-mark{width:35px;height:40px;display:grid;place-items:center;background:var(--ink);color:var(--accent);clip-path:polygon(50% 0,95% 17%,90% 70%,50% 100%,10% 70%,5% 17%);font-size:20px}
nav{display:flex;align-items:center;gap:8px}
nav a{font-size:14px;padding:9px 17px;border-radius:100px;color:var(--muted);white-space:nowrap}
nav a:hover{background:var(--soft);color:var(--ink)}
nav a.active{background:var(--ink);color:white}
.breadcrumb-bar{border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:17px 0;font-size:12px;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:12px;list-style:none}
.breadcrumb li+li:before{content:"/";margin-right:12px;color:#a7b6aa}
.breadcrumb a:hover{color:var(--ink)}
section{padding:76px 0;border-bottom:1px solid var(--line)}
.eyebrow{font-size:12px;letter-spacing:2px;color:var(--green);font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:17px}
.eyebrow:before{content:"";width:24px;height:1px;background:currentColor}
.hero{background:var(--soft);padding:65px 0}
.hero-layout{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:center}
.hero-copy{font-size:15px;line-height:2;margin-top:23px;max-width:440px}
.hero-brand{display:block;font-size:13px;color:var(--green);margin-bottom:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:49px;padding:11px 24px;border:1px solid var(--ink);border-radius:100px;background:var(--ink);color:white;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{background:var(--green);box-shadow:0 7px 20px #153a3420;transform:translateY(-2px)}
.hero .btn{margin-top:27px}
.hero-note{font-size:12px;color:var(--muted);margin-top:20px}
.visual{position:relative;margin-top:35px;border-radius:100px 22px 22px 22px;background:#dce5d8;overflow:hidden;min-height:350px}
.visual svg{width:100%;height:350px;object-fit:cover}
.visual-caption{position:absolute;left:24px;right:24px;bottom:22px;background:#fbfcf8ee;border:1px solid #fff;border-radius:16px;padding:18px 22px;backdrop-filter:blur(8px)}
.visual-caption strong{display:block;color:var(--ink);font-size:18px}
.visual-caption span{font-size:12px;color:var(--muted)}
.heading-row{display:flex;justify-content:space-between;align-items:flex-end;gap:50px;margin-bottom:32px}
.section-intro{max-width:590px;font-size:14px;color:var(--muted);margin-top:16px}
.section-number{font-size:12px;color:var(--muted);letter-spacing:2px;white-space:nowrap}
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{padding:28px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:box-shadow .2s,border-color .2s}
.card:hover{border-color:#b4c8ab;box-shadow:var(--shadow)}
.card p{font-size:14px;color:var(--muted);line-height:1.9;margin-top:12px}
.badge{display:inline-flex;font-size:11px;background:var(--soft);color:var(--green);padding:4px 11px;border-radius:30px;margin-bottom:18px;letter-spacing:1px}
.soft-section{background:var(--soft)}
.dark-section{background:var(--ink);color:#d6e0d8}
.dark-section h2,.dark-section h3{color:#fff}
.dark-section .eyebrow{color:var(--accent)}
.dark-section .section-intro{color:#c2d1c6}
.rights-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:80px;align-items:start}
.rights-list{list-style:none;border-top:1px solid #ffffff30}
.rights-list li{display:grid;grid-template-columns:48px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid #ffffff30}
.rights-list b{color:var(--accent);font-size:24px;font-weight:500}
.rights-list p{font-size:14px;color:#c2d1c6;margin-top:6px}
.process{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.process li{counter-increment:step;border-top:2px solid var(--line);padding-top:22px}
.process li:before{content:"0" counter(step);display:block;font-size:29px;color:var(--green);margin-bottom:17px}
.process p{font-size:14px;color:var(--muted);margin-top:12px}
.notice{margin-top:30px;padding:18px 22px;border-radius:14px;background:var(--sand);font-size:13px}
.case-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:22px}
.case-feature{background:var(--sand)}
.case-feature h3{font-size:25px}
.case-stack{display:grid;gap:18px}
.case-stack .card{padding:24px}
.article-list{border-top:1px solid var(--line)}
.article-row{padding:25px 0;display:grid;grid-template-columns:110px 1fr 32px;gap:25px;border-bottom:1px solid var(--line);align-items:start}
.article-row .label{font-size:12px;color:var(--green);padding-top:3px}
.article-row p{font-size:14px;color:var(--muted);margin-top:9px}
.article-row .arrow{color:var(--green);font-size:22px}
.article-row:hover h3{color:#568344}
.resource-note{font-size:12px;color:var(--muted);margin-top:21px}
.faq-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:70px}
details{border-bottom:1px solid var(--line);padding:21px 0}
details:first-child{border-top:1px solid var(--line)}
summary{position:relative;list-style:none;cursor:pointer;font-weight:600;color:var(--ink);padding-right:35px}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";position:absolute;right:4px;font-size:22px;line-height:1.4;color:var(--green)}
details[open] summary:after{content:"−"}
summary:hover{color:#568344}
details p{font-size:14px;color:var(--muted);padding-top:15px}
.contact-panel{display:flex;justify-content:space-between;gap:45px;align-items:center;background:var(--ink);padding:38px 42px;border-radius:var(--radius);color:#d6e0d8}
.contact-panel h2{color:white;font-size:29px}
.contact-panel p{font-size:14px;max-width:650px;margin-top:12px}
.contact-panel .btn{background:var(--accent);color:var(--ink);border-color:var(--accent);white-space:nowrap}
.contact-panel .btn:hover{background:#e6f3c7}
footer{padding:45px 0 25px;background:#f1f4ed}
.footer-top{display:flex;justify-content:space-between;gap:40px;align-items:flex-start}
.footer-top p{font-size:13px;color:var(--muted);max-width:520px;margin-top:14px}
.footer-note{max-width:300px;font-size:12px;color:var(--muted)}
.footer-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--line);padding-top:20px;margin-top:30px;font-size:11px;color:var(--muted)}
.footer-bottom a:hover{color:var(--ink)}
@media(min-width:1600px){.hero{padding:85px 0}}
@media(max-width:1024px){
.hero-layout{gap:32px}.visual{min-height:320px}.visual svg{height:320px}
.rights-layout,.faq-layout{gap:40px}.process{grid-template-columns:repeat(2,1fr)}
section{padding:62px 0}.card{padding:23px}.grid-3{gap:14px}
}
@media(max-width:768px){
.container{width:calc(100% - 40px)}.header-inner{min-height:74px}.logo{font-size:18px;gap:8px}
nav{gap:2px}nav a{padding:8px 12px;font-size:12px}
.hero-layout{grid-template-columns:1fr 1fr;gap:24px}h1{font-size:35px}
.visual-caption{left:14px;right:14px;padding:15px}.visual-caption strong{font-size:16px}
.grid-3{grid-template-columns:1fr}.rights-layout,.faq-layout{grid-template-columns:1fr;gap:28px}
.heading-row{gap:20px}.case-grid{grid-template-columns:1fr 1fr}.contact-panel{padding:30px;flex-direction:column;align-items:flex-start;gap:25px}
.footer-top{flex-direction:column;gap:22px}.footer-note{max-width:100%}
}
@media(max-width:520px){
.container{width:calc(100% - 32px)}.header-inner{gap:8px;min-height:92px;flex-wrap:wrap;padding:12px 0}
.logo{font-size:17px}.logo-mark{width:26px;height:31px;font-size:16px}nav{margin-left:auto}nav a{padding:7px 10px}
.breadcrumb{padding:12px 0;font-size:11px}.breadcrumb>a{white-space:nowrap}
section{padding:44px 0}.hero{padding:35px 0}.hero-layout{grid-template-columns:1fr}
h1{font-size:36px;letter-spacing:0}.hero-copy{max-width:none}.visual{margin-top:0;min-height:260px;border-top-left-radius:64px}.visual svg{height:260px}
.heading-row{display:block}.section-number{display:block;margin-top:14px}
.process{grid-template-columns:1fr;gap:20px}.process li{display:grid;grid-template-columns:42px 1fr;gap:4px 12px}
.process li:before{grid-row:span 2;margin:0}.process p{margin-top:4px}
.case-grid{grid-template-columns:1fr}.article-row{grid-template-columns:1fr 24px;gap:8px}
.article-row .label{grid-column:1/-1}.article-row h3{font-size:17px}.article-row .arrow{grid-column:2;grid-row:2}
.contact-panel{padding:26px}.contact-panel h2{font-size:25px}.contact-panel .btn{width:100%}
.footer-bottom{flex-direction:column;gap:8px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}a,button,summary,.card{transition:none}}