/* roulang page: index */
:root{--ink:#121426;--muted:#6c7085;--paper:#f6f7fb;--line:#e4e5ee;--brand:#6951eb;--accent:#c9f5db;--radius:28px;--shadow:0 18px 60px rgba(25,22,66,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:112px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}img,svg{display:block;max-width:100%}button:disabled{cursor:not-allowed}a,button{transition:color .2s,background .2s,transform .2s,box-shadow .2s}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a790ff;outline-offset:5px}button:active,.btn:active{transform:translateY(1px)}::selection{background:#d8cffd}.container{width:min(1200px,calc(100% - 64px));margin-inline:auto}.masthead{background:rgba(246,247,251,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40;backdrop-filter:blur(18px)}.masthead-inner{min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:32px}.brand{display:flex;align-items:center;gap:19px;flex-shrink:0}.brand-mark{font-size:57px;line-height:1;letter-spacing:-5px;font-weight:900}.brand-caption{border-left:1px solid #cdd0df;padding-left:21px;font-size:14px;font-weight:700;line-height:1.6}.brand-caption small{display:block;font-size:10px;color:var(--muted);letter-spacing:3px;margin-top:3px}.nav{display:flex;align-items:center;gap:30px}.nav a{font-size:14px;font-weight:600;padding:12px 1px;position:relative;color:var(--muted)}.nav a:hover,.nav a.active{color:var(--brand)}.nav a.active:after{content:"";position:absolute;bottom:2px;height:3px;width:18px;border-radius:3px;left:calc(50% - 9px);background:var(--brand)}.edition{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:30px;padding:7px 12px}.section{padding:88px 0;border-bottom:1px solid var(--line)}.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:2px;margin-bottom:18px;color:var(--brand)}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}.section-title{font-size:clamp(28px,3.5vw,43px);font-weight:750;line-height:1.3;letter-spacing:-1.5px}.intro{font-size:15px;line-height:1.95;color:var(--muted);max-width:680px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:20px;border-radius:100px;padding:14px 25px;font-size:14px;font-weight:700;border:1px solid transparent;min-height:50px}.btn-primary{color:white;background:var(--brand)}.btn-primary:hover{background:#5840d8;box-shadow:0 8px 24px #6951eb33;transform:translateY(-2px)}.btn-light{background:white;color:var(--ink)}.btn-light:hover{background:#e8e1ff;transform:translateY(-2px)}.btn-outline{border-color:var(--line);background:transparent;color:var(--ink)}.btn-outline:hover{border-color:var(--brand);color:var(--brand)}.badge{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:40px;background:#eeebfc;font-size:11px;font-weight:600;color:#6049c3}.card{border-radius:var(--radius);border:1px solid var(--line);background:white;padding:28px;transition:transform .25s,box-shadow .25s,border-color .25s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c4b8f4}.card p{font-size:14px;color:var(--muted);line-height:1.9}.card h3{font-size:20px;font-weight:700;line-height:1.5}.hero-wrap{padding:24px 0 0}.hero{position:relative;isolation:isolate;overflow:hidden;background:#17152c;color:white;border-radius:32px;padding:66px 64px 30px;min-height:590px}.hero:before{content:"";position:absolute;inset:0;z-index:-2;background:radial-gradient(ellipse at 95% 20%,#7760dc99,transparent 45%),radial-gradient(ellipse at 70% 120%,#38878366,transparent 55%),linear-gradient(115deg,#17152c 20%,#302a5c 100%)}.hero-art{position:absolute;width:450px;height:450px;right:-120px;top:-80px;border:1px solid #ffffff20;border-radius:50%;z-index:-1;box-shadow:0 0 0 65px #ffffff05,0 0 0 130px #ffffff04,0 0 0 195px #ffffff03}.hero-word{position:absolute;right:55px;top:95px;font-size:240px;font-weight:900;line-height:1;letter-spacing:-24px;color:#ffffff06;transform:rotate(-12deg);z-index:-1}.hero h1{font-size:clamp(39px,5.3vw,68px);font-weight:800;letter-spacing:-2.5px;line-height:1.2}.hero h1 span{color:#d0c4ff}.hero-copy{max-width:775px;font-size:15px;line-height:2;color:#d2cee3;margin:24px 0 27px}.hero-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:25px;margin-top:43px;border-top:1px solid #ffffff20;font-size:12px;color:#bdb6d4}.hero .badge{background:#ffffff12;color:#e8e3ff;border:1px solid #ffffff25}.rail{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.index-number{font-size:12px;color:var(--brand);font-weight:700;letter-spacing:2px}.feature-card{background:linear-gradient(125deg,#e9e3fc,#edf4f5);padding:42px;border-radius:var(--radius);min-height:330px;position:relative;overflow:hidden}.feature-symbol{position:absolute;right:12px;bottom:-70px;font-size:240px;line-height:1;font-weight:900;letter-spacing:-20px;color:#6951eb0c}.detail-row{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}.detail-row:last-child{border-bottom:0}.detail-row p{font-size:14px;color:var(--muted);margin-top:5px}.step{position:relative;border-top:2px solid #d8d0f6;padding-top:21px}.step-number{height:34px;width:34px;display:grid;place-items:center;border-radius:50%;background:#eae5fd;color:var(--brand);font-size:12px;font-weight:700;margin-bottom:20px}.dark-panel{background:#181a2b;color:white;border-radius:32px;padding:48px}.metric{font-size:clamp(40px,5vw,65px);font-weight:800;line-height:1.1;letter-spacing:-3px}.metric small{font-size:18px;font-weight:500;letter-spacing:0;margin-left:5px}.metric-label{font-size:13px;margin-top:13px;color:#b6b8ce}.priority-list{counter-reset:priority}.priority-item{display:grid;grid-template-columns:52px 1fr auto;gap:20px;padding:24px 0;border-top:1px solid var(--line);align-items:center}.priority-item:before{counter-increment:priority;content:"0" counter(priority);font-size:22px;color:#b8b3cd;font-weight:700}.priority-item p{font-size:14px;color:var(--muted);margin-top:6px}.quote-card{padding:30px;background:#eeebf9;border-radius:24px}.quote-mark{font-family:Georgia,serif;font-size:66px;line-height:.7;color:#aa9be1}.news-row{display:grid;grid-template-columns:110px 1fr 36px;gap:26px;align-items:start;padding:28px 0;border-top:1px solid var(--line)}.news-row h3{font-size:19px;font-weight:700}.news-row p{font-size:14px;line-height:1.9;color:var(--muted);margin-top:9px}.news-category{font-size:12px;color:var(--brand);padding-top:5px}.fine-list li{padding:16px 0;border-bottom:1px solid var(--line);font-size:14px;display:flex;justify-content:space-between;gap:20px}.fine-list li:last-child{border:0}.privacy-icon{width:60px;height:60px;background:#e7f5ec;border-radius:20px;display:grid;place-items:center;color:#30724b}.closing{padding:54px;background:linear-gradient(120deg,#e9e2ff,#edf2f7 75%);border-radius:32px;display:flex;justify-content:space-between;align-items:center;gap:40px}.footer{padding:48px 0 28px;background:#edeef5}.footer-link{font-size:13px;color:var(--muted)}.footer-link:hover{color:var(--brand)}dialog{padding:0;border:1px solid var(--line);border-radius:28px;width:min(590px,calc(100% - 32px));max-height:90vh;color:var(--ink);background:var(--paper);box-shadow:0 30px 100px #0005}dialog::backdrop{background:#101123aa;backdrop-filter:blur(5px)}.dialog-content{padding:32px}.form-select{width:100%;padding:11px 14px;background:white;border:1px solid #d7d8e4;border-radius:12px;color:var(--ink)}.preview{padding:24px;border:1px solid var(--line);border-radius:18px;background:white;transition:background .2s,color .2s}.preview.night{background:#1d2035;color:#f4f0ff;border-color:#353854}.preview.compact{padding:16px;font-size:13px;line-height:1.6}.preview p{opacity:.75}.close-btn{width:36px;height:36px;display:grid;place-items:center;border-radius:50%;background:#e9e7f3;font-size:22px}.close-btn:hover{background:#dcd5f7}.status{font-size:13px;color:#416b53;min-height:24px}.skip{position:fixed;top:-100px;left:20px;z-index:100;padding:12px;background:white;border:2px solid var(--brand)}.skip:focus{top:12px}
@media(min-width:1440px){.hero{min-height:620px}}
@media(max-width:1024px){.container{width:calc(100% - 48px)}.hero{padding:48px 40px 28px}.edition{display:none}.section{padding:65px 0}.dark-panel{padding:36px}.closing{padding:38px}.hero-word{right:10px}}
@media(max-width:768px){.container{width:calc(100% - 36px)}.masthead-inner{min-height:80px;gap:16px}.brand-mark{font-size:45px}.brand-caption{padding-left:14px;font-size:12px}.brand{gap:14px}.brand-caption small{letter-spacing:1px}.nav{gap:20px}.nav a{font-size:13px}.hero{padding:38px 28px 24px;min-height:auto;border-radius:26px}.hero-copy{font-size:14px}.hero-bottom{margin-top:30px;align-items:flex-start}.hero-word{top:110px;font-size:180px}.rail{grid-template-columns:repeat(3,260px);overflow-x:auto;scroll-snap-type:x mandatory;padding:0 0 18px}.rail .card{scroll-snap-align:start}.section{padding:52px 0}.feature-card{padding:30px;min-height:300px}.dark-panel{padding:30px}.closing{flex-direction:column;align-items:flex-start;gap:25px}.news-row{grid-template-columns:80px 1fr;gap:16px}.news-row>span:last-child{display:none}.priority-item{grid-template-columns:35px 1fr;gap:14px}.priority-item>.badge{grid-column:2;justify-self:start}.hero-art{opacity:.5}}
@media(max-width:520px){.container{width:calc(100% - 28px)}.masthead-inner{flex-wrap:wrap;gap:8px;padding:14px 0 10px;min-height:0}.brand{width:100%;justify-content:space-between}.brand-caption{border:0;text-align:right}.brand-caption small{display:none}.brand-mark{font-size:42px}.nav{width:100%;gap:28px;border-top:1px solid var(--line);margin-top:5px}.nav a{padding:10px 0 7px}.hero-wrap{padding-top:14px}.hero{padding:30px 22px 22px;border-radius:24px}.hero h1{font-size:36px;letter-spacing:-1px}.hero-copy{line-height:1.9}.hero-bottom{flex-direction:column;gap:10px}.hero .btn{width:100%}.section-title{font-size:28px;letter-spacing:-.8px}.card{padding:23px;border-radius:23px}.intro{font-size:14px}.dark-panel{padding:28px 22px;border-radius:24px}.closing{padding:28px 23px;border-radius:24px}.closing .btn{width:100%}.news-row{grid-template-columns:1fr;gap:8px}.dialog-content{padding:24px}.footer{padding-top:32px}.metric{font-size:43px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang page: category1 */
:root{--ink:#121426;--muted:#6c7085;--paper:#f6f7fb;--line:#e4e5ee;--brand:#6951eb;--accent:#c9f5db;--radius:28px;--shadow:0 18px 60px rgba(25,22,66,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
h1,h2,h3,p{margin:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img,svg{display:block;max-width:100%}button:disabled{cursor:not-allowed}ul{list-style:none;margin:0;padding:0}
a,button{transition:color .2s,background .2s,transform .2s,box-shadow .2s}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a790ff;outline-offset:5px}
button:active,.btn:active{transform:translateY(1px)}
.container{width:min(1200px,calc(100% - 64px));margin-inline:auto}
.masthead{background:#f6f7fbf5;border-bottom:1px solid var(--line)}
.masthead-inner{min-height:110px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;align-items:center;gap:19px;flex-shrink:0}
.brand-mark{font-size:57px;line-height:1;letter-spacing:-5px;font-weight:900}
.brand-caption{border-left:1px solid #cdd0df;padding-left:21px;font-size:14px;font-weight:700;line-height:1.6}
.brand-caption small{display:block;font-size:10px;color:var(--muted);letter-spacing:3px;margin-top:3px}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:14px;font-weight:600;padding:12px 1px;position:relative;color:var(--muted);white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--brand)}
.nav a.active:after{content:"";position:absolute;bottom:2px;height:3px;width:18px;border-radius:3px;left:calc(50% - 9px);background:var(--brand)}
.edition{border-left:1px solid var(--line);padding-left:26px;font-size:11px;color:var(--muted)}
.section{padding:80px 0;border-bottom:1px solid var(--line)}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:2px;margin-bottom:18px;color:var(--brand)}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;flex-shrink:0}
.section-title{font-size:clamp(28px,3.5vw,43px);font-weight:750;line-height:1.3;letter-spacing:-1.5px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:20px;border-radius:100px;padding:14px 25px;font-size:14px;font-weight:700;border:1px solid transparent;min-height:50px}
.btn-primary{color:white;background:var(--brand)}.btn-primary:hover{background:#5840d8;box-shadow:0 8px 24px #6951eb33;transform:translateY(-2px)}
.btn-light{background:white;color:var(--ink)}.btn-light:hover{background:#e8e1ff;transform:translateY(-2px)}
.btn-outline{border-color:var(--line);background:transparent;color:var(--ink)}.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.badge{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:40px;background:#eeebfc;font-size:11px;font-weight:600;color:#6049c3}
.card{border-radius:var(--radius);border:1px solid var(--line);background:white;padding:28px;transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c4b8f4}
.card p{font-size:14px;color:var(--muted);line-height:1.9}.card h3{font-size:20px;font-weight:700;line-height:1.5}
.feature-card{background:linear-gradient(125deg,#e9e3fc,#edf4f5);padding:42px;border-radius:var(--radius);position:relative;overflow:hidden}
.detail-row{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}.detail-row:last-child{border-bottom:0}.detail-row p{font-size:14px;color:var(--muted);margin-top:5px}
.priority-list{counter-reset:priority}.priority-item{display:grid;grid-template-columns:52px 1fr auto;gap:20px;padding:24px 0;border-top:1px solid var(--line);align-items:center}.priority-item:before{counter-increment:priority;content:"0" counter(priority);font-size:22px;color:#b8b3cd;font-weight:700}.priority-item p{font-size:14px;color:var(--muted);margin-top:6px}
.quote-card{padding:36px;background:#eeebf9;border-radius:24px}
.news-row{display:grid;grid-template-columns:110px 1fr 36px;gap:26px;align-items:start;padding:28px 0;border-top:1px solid var(--line)}.news-row h3{font-size:19px;font-weight:700}.news-row p{font-size:14px;line-height:1.9;color:var(--muted);margin-top:9px}
.fine-list li{padding:16px 0;border-bottom:1px solid var(--line);font-size:14px;display:flex;justify-content:space-between;gap:20px}.fine-list li:last-child{border:0}
.footer{padding:48px 0 28px;background:#edeef5}.footer-link{font-size:13px;color:var(--muted)}.footer-link:hover{color:var(--brand)}
.topic-hero{padding:42px 0 64px}.breadcrumb{font-size:12px;color:var(--muted);display:flex;gap:12px;margin-bottom:32px}.breadcrumb a:hover{color:var(--brand)}
.topic-heading{font-size:clamp(38px,5vw,64px);line-height:1.2;letter-spacing:-2px;font-weight:800}
.topic-deck{max-width:630px;color:var(--muted);font-size:16px;margin-top:22px;line-height:2}
.preview-panel{position:relative;isolation:isolate;overflow:hidden;background:#17152c;color:white;border-radius:32px;padding:32px}
.preview-panel:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse at 100% 0%,#7760dc80,transparent 65%),linear-gradient(130deg,transparent,#38878325)}
.progress-ring{width:136px;height:136px;flex-shrink:0;position:relative;display:grid;place-items:center}.progress-ring svg{position:absolute;inset:0;transform:rotate(-90deg)}.progress-ring circle{fill:none;stroke-width:5}.ring-label{text-align:center;font-size:11px;color:#c5bfd8}.ring-label strong{display:block;color:white;font-size:23px}
.preview-tier{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #ffffff20;padding:15px 0;font-size:13px}
.preview-tier span:last-child{color:#c9c1ec;font-size:11px}
.stat-number{display:block;font-size:48px;line-height:1.15;font-weight:800;letter-spacing:-2px;color:var(--brand)}
.mini-stat{padding:26px 0;border-top:1px solid var(--line)}
.method-line{position:relative;padding-left:28px;border-left:2px solid #dcd5f8}
.method-line:before{content:"";width:10px;height:10px;background:var(--brand);position:absolute;left:-6px;top:8px;border-radius:50%}
.quote-mark{font-size:80px;font-family:Georgia,serif;line-height:.8;color:#b2a3e8}
.topic-cta{border-radius:28px;background:linear-gradient(120deg,#e7e0fb,#eef7f0);padding:36px 40px}
#support-message{min-height:24px;font-size:12px;color:#d7d1e9;margin-top:12px}
@media(min-width:1025px){.preview-panel{transform:rotate(1deg)}}
@media(max-width:1024px){.container{width:calc(100% - 48px)}.edition{display:none}.section{padding:64px 0}.brand-mark{font-size:50px}.preview-panel{padding:26px}}
@media(max-width:768px){.container{width:calc(100% - 36px)}.masthead-inner{min-height:94px;gap:20px}.brand{gap:14px}.brand-mark{font-size:45px}.brand-caption{padding-left:14px;font-size:12px}.brand-caption small{letter-spacing:1px}.nav{gap:20px}.nav a{font-size:13px}.section{padding:52px 0}.topic-hero{padding-top:28px}.feature-card{padding:30px}.news-row{grid-template-columns:85px 1fr;gap:18px}.news-row>span:last-child{display:none}.topic-cta{padding:30px}.topic-heading{letter-spacing:-1.5px}}
@media(max-width:520px){.masthead-inner{padding:20px 0 12px;align-items:flex-start;flex-direction:column;gap:14px}.masthead-inner>div{width:100%}.nav{width:100%;gap:30px;border-top:1px solid var(--line);padding-top:5px}.brand-caption small{letter-spacing:2px}.section-title{letter-spacing:-1px}.card{padding:24px}.priority-item{grid-template-columns:32px 1fr;gap:12px}.priority-item .badge{grid-column:2;width:fit-content}.preview-panel{border-radius:24px;padding:24px}.news-row{grid-template-columns:1fr;gap:10px}.quote-card{padding:28px}.topic-cta .btn{width:100%}.progress-ring{width:116px;height:116px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}