/* roulang page: index */
:root{--ink:#16221e;--muted:#68736d;--paper:#f5f6f0;--white:#fff;--dark:#111918;--accent:#d0f46d;--green:#376547;--line:#dce1d6;--radius:20px;--shadow:0 14px 40px #13251a0b;--space:88px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}a:hover{color:var(--green)}button,input{font:inherit}button{cursor:pointer}img,svg{max-width:100%;vertical-align:middle}::selection{background:var(--accent);color:var(--dark)}:focus-visible{outline:3px solid #71a63b;outline-offset:5px}h1,h2,h3,p{margin:0}h2{font-size:clamp(27px,3.1vw,40px);font-weight:750;letter-spacing:-1.3px;line-height:1.3}h3{font-size:20px;line-height:1.5;font-weight:700}p{color:var(--muted)}.container{max-width:1200px;padding-left:28px;padding-right:28px}.site-header{position:sticky;top:0;z-index:50;background:#f5f6f0f5;backdrop-filter:blur(18px);border-bottom:1px solid var(--line);transition:box-shadow .25s}.brand-row{height:80px;display:flex;align-items:center;justify-content:space-between;transition:height .25s}.brand{display:inline-flex;align-items:center;gap:12px;font-size:20px;font-weight:800;letter-spacing:-.7px}.brand-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--accent);font-size:22px;font-weight:900;transform:skew(-6deg)}.header-note{font-size:12px;letter-spacing:2px;color:var(--muted)}.nav-row{display:flex;align-items:center;gap:30px;height:48px;transition:height .25s}.nav-link{padding:10px 0;color:var(--muted);font-size:14px;position:relative}.nav-link.active{color:var(--ink);font-weight:700}.nav-link.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--green)}.nav-link:hover{color:var(--green)}.nav-note{margin-left:auto;font-size:12px;color:var(--muted)}.site-header.compact{box-shadow:var(--shadow)}.compact .header-inner{display:flex;align-items:center;gap:50px}.compact .brand-row{height:66px}.compact .header-note,.compact .nav-note{display:none}.compact .nav-row{height:66px;flex:1}.menu-toggle{display:none;border:1px solid var(--line);border-radius:10px;padding:4px 11px;background:transparent;font-size:22px;color:var(--ink)}main section{padding:var(--space) 0;border-bottom:1px solid var(--line)}.eyebrow{display:flex;align-items:center;gap:12px;font-size:12px;letter-spacing:2px;font-weight:700;color:var(--green);margin-bottom:22px}.eyebrow:before{content:"";width:22px;height:2px;background:currentColor}.section-head{display:flex;justify-content:space-between;gap:50px;align-items:flex-end;margin-bottom:36px}.section-head p{max-width:555px;font-size:15px}.lead-copy{font-size:16px;line-height:1.95}.btn{--bs-btn-border-radius:9px;padding:13px 24px;font-size:14px;font-weight:700;border:1px solid transparent;transition:all .2s;display:inline-flex;align-items:center;justify-content:center;gap:24px}.btn-main{background:var(--accent);color:var(--dark)}.btn-main:hover{background:#e0ff95;transform:translateY(-2px);color:var(--dark);box-shadow:0 8px 20px #a5cd4226}.btn-main:active{transform:translateY(0);background:#b6d956}.btn-outline{border-color:var(--line);color:var(--ink);background:transparent}.btn-outline:hover{background:var(--ink);color:white;border-color:var(--ink)}.tag{display:inline-block;padding:4px 10px;border:1px solid var(--line);border-radius:6px;font-size:11px;line-height:1.6;color:var(--muted)}.hero{position:relative;overflow:hidden;background:var(--dark);color:white;padding:88px 0 100px;isolation:isolate;min-height:640px;clip-path:polygon(0 0,100% 0,100% 94%,0 100%);border:0}.hero-art{position:absolute;z-index:-1;inset:0 0 0 35%;overflow:hidden;opacity:.75}.hero-art svg{height:100%;width:100%;object-fit:cover}.hero:after{content:"";position:absolute;z-index:-1;inset:0;background:linear-gradient(90deg,#111918 6%,#111918e8 36%,#11191828 100%)}.hero .eyebrow{color:var(--accent)}.hero h1{font-size:clamp(43px,5.7vw,76px);font-weight:800;line-height:1.16;letter-spacing:-3px;max-width:820px;margin-bottom:27px}.hero h1 span{display:block;color:var(--accent)}.hero p{color:#b6c2b9;max-width:670px;font-size:15px;line-height:2}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:32px}.hero small{color:#a3b1a8;font-size:12px}.poster-mark{position:absolute;right:6%;bottom:80px;display:flex;align-items:center;gap:14px;color:#c5d4c8;writing-mode:vertical-rl;font-size:12px;letter-spacing:5px}.status-dot{width:7px;height:7px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 5px #d0f46d12;display:inline-block}.schedule{padding:42px 0 48px}.schedule-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;align-items:center}.schedule h2{font-size:24px;margin-bottom:12px}.schedule p{font-size:14px}.count-box{border-left:1px solid var(--line);padding-left:30px}.count-box strong{display:block;font-size:26px;letter-spacing:-1px}.count-box span{font-size:12px;color:var(--muted)}.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;height:100%;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}.card:hover{transform:translateY(-4px);box-shadow:0 18px 45px #13251a12}.card p{font-size:14px;margin-top:14px}.card-number{font-size:12px;letter-spacing:2px;color:var(--green);margin-bottom:35px;font-weight:700}.card-icon{font-size:28px;line-height:1;width:52px;height:52px;background:#edf2e5;border-radius:14px;display:grid;place-items:center;margin-bottom:24px}.band-white{background:white}.benefit-panel{background:#e9efdf;border-radius:var(--radius);padding:38px}.benefit-panel .price{font-size:64px;font-weight:800;line-height:1.1;letter-spacing:-4px;margin:20px 0}.benefit-panel .price small{font-size:14px;letter-spacing:0;font-weight:400}.clean-list{list-style:none;margin:0;padding:0}.clean-list li{padding:18px 0;border-bottom:1px solid var(--line);display:flex;gap:20px;align-items:flex-start}.clean-list li:last-child{border-bottom:0}.tick{color:var(--green);font-size:18px}.clean-list strong{display:block;font-size:15px}.clean-list p{font-size:14px;margin-top:3px}.step-track{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:35px}.step{border-top:2px solid var(--line);padding-top:20px}.step b{display:block;font-size:13px;color:var(--green);margin-bottom:20px}.step h3{font-size:18px}.step p{font-size:14px;margin-top:12px}.demo{background:var(--dark);color:white}.demo .eyebrow{color:var(--accent)}.demo p{color:#aab9af}.demo-panel{border:1px solid #3a463d;border-radius:var(--radius);padding:35px;background:#1a2420;box-shadow:0 25px 60px #0002}.demo-top{display:flex;justify-content:space-between;gap:15px;border-bottom:1px solid #344036;padding-bottom:23px;margin-bottom:26px}.demo .tag{border-color:#4e5a50;color:#c8d1ca}.demo h3{margin:12px 0 25px;font-size:25px}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.choice{border:1px solid #455347;color:#ecf3ed;background:#202e25;border-radius:12px;padding:24px;text-align:left;transition:all .2s}.choice strong{display:block;margin-bottom:6px;font-size:17px}.choice span{font-size:12px;color:#9eafa1}.choice:hover{border-color:var(--accent);background:#2d3d2c}.choice[aria-pressed=true]{border-color:var(--accent);background:#d0f46d;color:var(--dark)}.choice[aria-pressed=true] span{color:#3d522f}.result-line{min-height:48px;margin-top:20px;font-size:13px!important}.demo-aside{padding:24px 0 24px 30px}.demo-aside h2{margin-bottom:24px}.reward-strip{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:32px}.reward-item{padding:32px;background:white;border-right:1px solid var(--line)}.reward-item:last-child{border:0}.reward-symbol{display:block;font-size:32px;color:var(--green);margin-bottom:20px}.reward-item p{font-size:14px;margin-top:12px}.topic-entry{display:flex;align-items:center;justify-content:space-between;gap:35px;background:#e4ecd9;padding:32px 38px;border-radius:var(--radius);margin-top:32px}.topic-entry h3{margin-bottom:7px}.topic-entry p{font-size:14px;max-width:650px}.text-link{font-size:14px;font-weight:700;white-space:nowrap;border-bottom:1px solid var(--ink);padding:5px 0}.article-list{border-top:1px solid var(--line)}.article-row{display:grid;grid-template-columns:70px 1fr 150px;gap:25px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start}.article-number{font-size:28px;line-height:1.5;color:#9baa92;font-weight:300}.article-row h3{font-size:20px;margin-bottom:10px}.article-row p{font-size:14px;max-width:780px}.article-meta{text-align:right;color:var(--muted);font-size:12px;padding-top:5px}.views{display:grid;grid-template-columns:1fr 1.2fr;gap:50px}.view-item{padding:22px 0;border-bottom:1px solid var(--line);display:flex;gap:18px}.view-item:first-child{padding-top:0}.avatar{width:38px;height:38px;flex-shrink:0;border-radius:50%;background:#e4ebdb;display:grid;place-items:center;font-size:13px;color:var(--green);font-weight:700}.view-item p{font-size:14px;margin-top:6px}.view-item strong{font-size:16px}.safety{padding:56px 0;background:#eaf0e3}.safety-grid{display:grid;grid-template-columns:1fr 2fr;gap:65px}.safety h2{font-size:28px}.safety p{font-size:14px}.safety-labels{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.safety .tag{border-color:#bac9b0;color:var(--green)}.closing{text-align:center;background:var(--paper);padding:80px 0}.closing .eyebrow{justify-content:center}.closing p{max-width:720px;margin:24px auto 28px;font-size:15px}.closing .btn{min-width:220px}.site-footer{background:var(--dark);color:#e8eee8;padding:50px 0 24px}.footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:50px;padding-bottom:34px}.footer-top p{font-size:13px;color:#98a99d;max-width:520px;margin-top:18px}.footer-notes{text-align:right;color:#98a99d;font-size:13px}.footer-bottom{border-top:1px solid #344037;padding-top:22px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#98a99d}.site-footer a:hover{color:var(--accent)}.site-footer .brand-icon{background:var(--accent);color:var(--dark)}
@media(min-width:1400px){.hero{min-height:690px;padding-top:108px}}
@media(max-width:1024px){:root{--space:66px}.header-note{letter-spacing:0}.section-head{gap:30px}.section-head p{max-width:470px}.hero h1{font-size:58px}.hero p{max-width:620px}.poster-mark{display:none}.views{gap:30px}.demo-aside{padding-left:0}.compact .header-inner{gap:30px}.article-row{grid-template-columns:45px 1fr 95px}.step-track{gap:20px}}
@media(max-width:768px){.container{padding-left:22px;padding-right:22px}.brand-row,.compact .brand-row{height:66px;width:100%}.header-note,.nav-note{display:none}.menu-toggle{display:block}.compact .header-inner{display:block}.nav-row,.compact .nav-row{height:auto;display:none;padding:0 0 15px;gap:25px}.nav-row.open{display:flex}.hero{min-height:0;padding:68px 0 92px}.hero h1{font-size:48px;letter-spacing:-2px}.hero-art{left:0;opacity:.4}.hero:after{background:#11191880}.hero p{font-size:14px}.section-head{display:block}.section-head p{max-width:none;margin-top:20px}.schedule-grid{grid-template-columns:1fr 1fr}.schedule-grid>div:first-child{grid-column:1/-1}.count-box{padding-left:20px}.step-track{grid-template-columns:1fr 1fr;gap:30px}.demo-aside{margin-top:30px}.reward-strip{grid-template-columns:1fr}.reward-item{border-right:0;border-bottom:1px solid var(--line)}.reward-symbol{float:left;margin-right:25px;margin-bottom:45px}.topic-entry{align-items:flex-start;padding:28px;flex-direction:column;gap:20px}.views,.safety-grid{grid-template-columns:1fr;gap:30px}.footer-top{display:block}.footer-notes{text-align:left;margin-top:24px}.footer-bottom{flex-direction:column;gap:8px}.article-row{grid-template-columns:40px 1fr}.article-meta{grid-column:2;text-align:left;padding:0}.article-row{gap:8px 18px}}
@media(max-width:520px){:root{--space:52px}.brand{font-size:17px;gap:9px}.brand-icon{width:32px;height:32px}.hero h1{font-size:38px;letter-spacing:-1.5px}.hero-actions{align-items:flex-start;flex-direction:column;gap:15px}.hero .eyebrow{font-size:10px;letter-spacing:1px}.card,.benefit-panel{padding:25px}.card-number{margin-bottom:24px}.demo-panel{padding:23px}.choice-grid{grid-template-columns:1fr}.choice{padding:18px}.demo-top{font-size:13px;align-items:center}.demo h3{font-size:21px}.count-box strong{font-size:23px}.step-track{gap:28px 20px}.step h3{font-size:16px}.step p{font-size:13px}.article-row h3{font-size:18px}.reward-symbol{margin-bottom:60px}.section-head{margin-bottom:28px}.closing{padding:58px 0}.footer-top .brand{font-size:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{--ink:#16221e;--muted:#68736d;--paper:#f5f6f0;--white:#fff;--dark:#111918;--accent:#d0f46d;--green:#376547;--line:#dce1d6;--radius:20px;--shadow:0 14px 40px #13251a0b;--space:88px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:95px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}
a:hover{color:var(--green)}
button,input{font:inherit}button{cursor:pointer}img,svg{max-width:100%;vertical-align:middle}
:focus-visible{outline:3px solid var(--green);outline-offset:5px}
.container{max-width:1200px;padding-left:28px;padding-right:28px}
h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:800;line-height:1.3}
h2{font-size:clamp(27px,3vw,38px);letter-spacing:-1px}h3{font-size:20px}p{color:var(--muted);margin-bottom:0}
.site-header{position:sticky;top:0;z-index:50;background:#f5f6f0f5;backdrop-filter:blur(18px);border-bottom:1px solid var(--line);transition:box-shadow .25s}
.brand-row{height:80px;display:flex;align-items:center;justify-content:space-between;transition:height .25s}
.brand{display:inline-flex;align-items:center;gap:12px;font-size:20px;font-weight:800;letter-spacing:-.7px}
.brand-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--accent);font-size:22px;font-weight:900;transform:skew(-6deg)}
.header-note{font-size:12px;letter-spacing:2px;color:var(--muted)}
.nav-row{display:flex;align-items:center;gap:30px;height:48px;transition:height .25s}
.nav-link{padding:10px 0;color:var(--muted);font-size:14px;position:relative}
.nav-link.active{color:var(--ink);font-weight:700}
.nav-link.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--green)}
.nav-link:hover{color:var(--green)}
.nav-note{margin-left:auto;font-size:12px;color:var(--muted)}
.site-header.compact{box-shadow:var(--shadow)}
.compact .header-inner{display:flex;align-items:center;gap:50px}
.compact .brand-row{height:66px}
.compact .header-note,.compact .nav-note{display:none}
.compact .nav-row{height:66px;flex:1}
.menu-toggle{display:none;border:1px solid var(--line);border-radius:10px;padding:4px 11px;background:transparent;font-size:22px;color:var(--ink)}
main section{padding:var(--space) 0;border-bottom:1px solid var(--line)}
.eyebrow{display:flex;align-items:center;gap:12px;font-size:12px;letter-spacing:2px;font-weight:700;color:var(--green);margin-bottom:22px}
.eyebrow:before{content:"";width:22px;height:2px;background:currentColor}
.section-head{display:flex;justify-content:space-between;gap:50px;align-items:flex-end;margin-bottom:36px}
.section-head p{max-width:510px;font-size:15px}
.btn{--bs-btn-border-radius:9px;padding:13px 24px;font-size:14px;font-weight:700;border:1px solid transparent;transition:all .2s;display:inline-flex;align-items:center;justify-content:center;gap:24px}
.btn-main{background:var(--accent);color:var(--dark)}
.btn-main:hover{background:#e0ff95;transform:translateY(-2px);color:var(--dark);box-shadow:0 8px 20px #a5cd4226}
.btn-main:active{transform:translateY(0);background:#b6d956}
.btn-outline{border-color:var(--line);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:white;border-color:var(--ink)}
.tag{display:inline-block;padding:4px 10px;border:1px solid var(--line);border-radius:6px;font-size:11px;line-height:1.6;color:var(--muted)}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;height:100%;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 45px #13251a12}
.card p{font-size:14px;margin-top:14px}
.card-number{font-size:12px;letter-spacing:2px;color:var(--green);margin-bottom:35px;font-weight:700}
.clean-list{list-style:none;margin:0;padding:0}
.clean-list li{padding:18px 0;border-bottom:1px solid var(--line);display:flex;gap:20px;align-items:flex-start}
.clean-list li:last-child{border-bottom:0}
.clean-list strong{display:block;font-size:15px}
.clean-list p{font-size:14px;margin-top:3px}
.article-list{border-top:1px solid var(--line)}
.article-row{display:grid;grid-template-columns:70px 1fr 150px;gap:25px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start}
.article-row h3{font-size:20px;margin-bottom:10px}
.article-row p{font-size:14px;max-width:780px}
.article-meta{text-align:right;color:var(--muted);font-size:12px;padding-top:5px}
.safety-grid{display:grid;grid-template-columns:1fr 2fr;gap:65px}
.safety .tag{border-color:#bac9b0;color:var(--green)}
.site-footer{background:var(--dark);color:#e8eee8;padding:50px 0 24px}
.footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:50px;padding-bottom:34px}
.footer-top p{font-size:13px;color:#98a99d;max-width:520px;margin-top:18px}
.footer-notes{text-align:right;font-size:13px;line-height:2.2;color:#a9b8ae}
.footer-notes a{color:var(--accent)}
.footer-bottom{border-top:1px solid #334039;padding-top:22px;display:flex;justify-content:space-between;gap:24px;font-size:11px;color:#98a99d}
.footer-top .brand-icon{background:#29372d}
.topic-hero{padding:64px 0 70px;background:var(--paper)}
.breadcrumb-line{font-size:12px;color:var(--muted);margin-bottom:32px}
.topic-hero h1{font-size:clamp(38px,4.9vw,64px);letter-spacing:-2px;margin-bottom:24px}
.topic-hero h1 span{color:var(--green)}
.hero-copy{max-width:590px;font-size:16px;line-height:2}
.topic-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}
.session-panel{padding:30px;background:var(--dark);color:white;border-radius:var(--radius);position:relative;overflow:hidden}
.session-panel:before{content:"";position:absolute;right:-50px;top:-65px;width:190px;height:190px;border:1px solid #45533c;border-radius:50%;pointer-events:none}
.session-panel .eyebrow{color:var(--accent)}
.session-panel p{font-size:13px;color:#a5b2a9}
.session-panel h2{font-size:25px}
.session-slots{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:24px 0}
.slot{border:1px solid #435047;border-radius:9px;padding:12px 5px;text-align:center;font-size:13px}
.slot small{display:block;font-size:10px;color:#a5b2a9}
.slot.active{border-color:var(--accent);color:var(--accent);background:#d0f46d0a}
.session-panel .btn{width:100%}
.panel-note{display:block;margin-top:14px;color:#a5b2a9;font-size:11px}
.white-section{background:white}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature-grid .card{background:var(--paper);box-shadow:none}
.scenario-heading{position:sticky;top:110px}
.scenario-num{font-size:13px;color:var(--green);min-width:32px;padding-top:2px}
.demo{background:var(--dark);color:white}
.demo .eyebrow{color:var(--accent)}
.demo p{color:#a9b8ae}
.demo .tag{border-color:#4e5a50;color:#c8d1ca}
.prediction-panel{border:1px solid #3e4b43;background:#1a2420;padding:30px;border-radius:var(--radius)}
.prediction-panel h3{font-size:23px;margin:20px 0}
.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.choice{padding:20px;text-align:left;border:1px solid #47574b;border-radius:12px;background:transparent;color:white;transition:background .2s,border-color .2s}
.choice:hover{border-color:var(--accent)}
.choice span{display:block;font-size:12px;color:#a9b8ae;margin-top:6px}
.choice[aria-pressed=true]{border-color:var(--accent);background:var(--accent);color:var(--dark)}
.choice[aria-pressed=true] span{color:#3d522f}
.demo :focus-visible{outline-color:var(--accent)}
.result-note{min-height:50px;font-size:13px;padding-top:20px}
.reset-button{background:none;border:0;padding:4px 0;color:#ccd6ce;font-size:12px;border-bottom:1px solid #758378}
.review-box{border-left:3px solid var(--green);background:#e9eddf;padding:30px;border-radius:0 14px 14px 0}
.review-box strong{font-size:21px;display:block;margin:10px 0}
.review-box p{font-size:14px}
.access-strip{margin-top:28px;display:flex;align-items:center;gap:20px;padding:24px 28px;border:1px solid var(--line);border-radius:14px}
.access-strip b{font-size:36px;line-height:1.2;white-space:nowrap;letter-spacing:-1px}
.access-strip p{font-size:13px}
.closing{background:#e8eddf}
.closing-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}
.closing p{max-width:650px;margin-top:15px;font-size:14px}
@media(min-width:1025px){.topic-hero .row{--bs-gutter-x:4rem}}
@media(max-width:1024px){:root{--space:66px}.feature-grid{grid-template-columns:repeat(2,1fr)}.compact .header-inner{gap:30px}.hero-copy{font-size:15px}.session-panel{padding:24px}.safety-grid{gap:35px}.section-head{gap:28px}}
@media(max-width:768px){:root{--space:52px}.brand-row,.compact .brand-row{height:68px;width:100%}.header-note,.nav-note{display:none}.menu-toggle{display:block}.compact .header-inner{display:block}.nav-row,.compact .nav-row{display:none;height:auto;padding:10px 0 18px}.nav-row.open{display:flex}.brand{font-size:18px}.section-head{display:block}.section-head p{margin-top:18px}.scenario-heading{position:static}.topic-hero{padding:36px 0 48px}.session-panel{margin-top:12px}.article-row{grid-template-columns:35px 1fr;gap:15px}.article-meta{grid-column:2;text-align:left;padding:0}.safety-grid{grid-template-columns:1fr;gap:22px}.footer-top,.footer-bottom,.closing-inner{flex-direction:column;align-items:flex-start;gap:24px}.footer-notes{text-align:left}.prediction-panel{margin-top:15px}.topic-hero h1{letter-spacing:-1px}}
@media(max-width:520px){.container{padding-left:20px;padding-right:20px}.feature-grid{grid-template-columns:1fr}.feature-grid .card{padding:24px}.card-number{margin-bottom:18px}.choice-grid{grid-template-columns:1fr}.prediction-panel{padding:22px}.section-head{margin-bottom:25px}.access-strip{align-items:flex-start;padding:22px;gap:15px}.access-strip b{font-size:29px}.brand{font-size:17px;gap:9px}.brand-icon{width:31px;height:31px;font-size:19px}.closing .btn{width:100%}.footer-bottom{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}