/* roulang page: index */
:root{--bg:#081322;--surface:#0d1c30;--surface2:#10243c;--ink:#f0f6ff;--muted:#9db1c9;--blue:#62aaff;--cyan:#67efdf;--border:rgba(151,188,232,.17);--radius:20px;--shadow:0 20px 55px rgba(0,0,0,.22);--space:80px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:150px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.8}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-family:inherit;color:var(--ink);font-weight:700;line-height:1.35}
h1{font-size:clamp(34px,5.2vw,66px);letter-spacing:-2px}
h2{font-size:clamp(26px,3vw,38px);letter-spacing:-.8px}
h3{font-size:20px}
p{color:var(--muted)}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}
a:hover{color:var(--cyan)}
button,input,select{font:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}
a:active,button:active{transform:translateY(1px)}
img,svg{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
.container{max-width:1200px;padding:0 28px;margin:auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(8,19,34,.94);backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
.brand-row{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;gap:12px;align-items:center;font-size:21px;font-weight:800;white-space:nowrap}
.logo-mark{width:36px;height:36px;border:1px solid var(--blue);border-radius:11px;display:grid;place-items:center;color:var(--cyan);background:#153350;box-shadow:inset 0 0 14px #346fa833}
.brand-note{font-size:12px;color:var(--muted);letter-spacing:1px}
.nav-grid{display:grid;grid-template-columns:repeat(2,minmax(0,190px));gap:8px;padding-bottom:12px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 16px;border:1px solid transparent;border-radius:10px;color:var(--muted);font-size:14px}
.nav-item:hover{background:#152b45;color:white}
.nav-item.active{color:var(--cyan);background:rgba(71,138,207,.14);border-color:var(--border)}
.nav-icon{font-size:19px;line-height:1}
section{padding:var(--space) 0;border-bottom:1px solid var(--border)}
section.alt{background:rgba(16,36,60,.36)}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:2px;color:var(--cyan);margin-bottom:17px;font-weight:700}
.eyebrow:before{content:"";height:2px;width:24px;background:var(--cyan)}
.section-head{max-width:820px;margin-bottom:32px}
.section-head p{margin-top:18px}
.hero{padding:30px 0 52px;overflow:hidden}
.hero-cover{position:relative;border-radius:26px;overflow:hidden;border:1px solid #36537b;background:#0c203b;min-height:510px;padding:55px 50px;box-shadow:var(--shadow)}
.hero-art{position:absolute;right:-60px;top:-90px;width:760px;height:760px;opacity:.38;pointer-events:none}
.hero-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0c203bf2 8%,#0c203b85 65%,transparent);pointer-events:none}
.hero-copy{position:relative;z-index:2;max-width:860px}
.hero-copy h1 span{display:block;color:var(--blue);font-size:.63em;letter-spacing:0;margin-top:14px}
.hero-copy p{max-width:770px;margin-top:24px;color:#c2d0e1;line-height:1.95}
.badge{background:#17384b;border:1px solid #326773;color:var(--cyan);padding:5px 11px;border-radius:7px;font-size:12px;font-weight:500}
.hero-status{position:relative;z-index:3;display:flex;gap:28px;align-items:center;justify-content:space-between;margin:30px 20px 0;padding:24px 28px;background:rgba(18,41,68,.86);backdrop-filter:blur(18px);border:1px solid var(--border);border-radius:16px}
.countdown-label{font-size:12px;color:var(--muted)}
.countdown{font-size:20px;font-weight:700;letter-spacing:2px}
.status-note{font-size:12px;color:var(--muted);margin-top:3px}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--cyan);margin-right:7px;box-shadow:0 0 12px #67efdf80}
.button{margin:0;border-radius:10px;background:var(--blue);color:#061526;padding:15px 23px;border:1px solid var(--blue);font-size:14px;font-weight:700;line-height:1.3;transition:.2s;box-shadow:0 0 25px #408eff28}
.button:hover,.button:focus{background:#8fc4ff;color:#061526;box-shadow:0 0 30px #408eff50}
.button.secondary{background:transparent;color:var(--ink);border-color:#456184;box-shadow:none}
.button.secondary:hover{background:#17314e}
.card{margin:0;height:100%;background:linear-gradient(135deg,rgba(29,53,83,.64),rgba(13,28,48,.85));border:1px solid var(--border);border-radius:var(--radius);color:var(--ink);padding:28px;box-shadow:var(--shadow);overflow:hidden;transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-3px);border-color:rgba(98,170,255,.45)}
.card p{font-size:14px;margin-top:13px}
.card .number{font-size:12px;color:var(--cyan);letter-spacing:2px;margin-bottom:22px;display:block}
.grid-margin-x>.cell{margin-bottom:24px}
.split-copy{padding-right:40px}
.stack{display:grid;gap:16px}
.issue{border-left:2px solid #487db6;padding:6px 0 6px 24px}
.issue h3{font-size:18px}
.issue p{font-size:14px;margin-top:8px}
.inline-note{font-size:13px;color:var(--muted);padding:15px 18px;background:#091a2d;border-radius:10px;border:1px solid var(--border)}
.directory{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.directory a{padding:9px 15px;border:1px solid var(--border);border-radius:8px;background:#142b46;font-size:14px}
.demo-panel{border:1px solid #355981;border-radius:22px;background:#0b1c31;overflow:hidden}
.panel-bar{padding:17px 25px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:15px;font-size:13px;color:var(--muted)}
.demo-content{padding:30px}
.scenario{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:center}
.scenario-side{padding:24px;border-radius:14px;background:#112b45}
.scenario-side:last-child{background:#112e37}
.scenario-side h3{margin:10px 0}
.vs{color:#6f8aa8;font-weight:700}
.choice-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}
.choice{padding:12px 20px;border:1px solid #3a5777;color:var(--ink);background:#10263f;border-radius:10px;transition:.2s}
.choice:hover,.choice[aria-pressed="true"]{border-color:var(--cyan);background:#173d47;color:var(--cyan)}
.result{min-height:30px;margin-top:16px;font-size:14px;color:var(--cyan)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:30px}
.step{padding-top:20px;border-top:1px solid #315376}
.step b{font-size:30px;color:var(--blue);font-weight:500}
.step h3{font-size:17px;margin:13px 0 10px}
.step p{font-size:14px}
.quote-band{padding:32px;border-left:3px solid var(--cyan);background:rgba(70,124,178,.09);border-radius:0 16px 16px 0}
.quote-band blockquote{border:0;padding:0;margin:0;font-size:25px;line-height:1.6;color:var(--ink)}
.quote-band p{font-size:13px;margin-top:18px}
.proof-list{display:grid;gap:16px}
.proof-list li{padding:20px;border-bottom:1px solid var(--border)}
.proof-list b{display:block;margin-bottom:6px}
.proof-list span{font-size:14px;color:var(--muted)}
.audience{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:18px;overflow:hidden}
.audience article{padding:28px;background:#0e2035}
.audience p{font-size:14px;margin-top:10px}
.news-list{display:grid;gap:15px}
.news-item{display:grid;grid-template-columns:75px 1fr;gap:25px;padding:28px;background:#0e2036;border:1px solid var(--border);border-radius:16px}
.news-index{font-size:32px;color:#547ea8;line-height:1.3}
.news-tag{display:block;font-size:12px;color:var(--cyan);margin-bottom:7px}
.news-item p{font-size:14px;margin-top:12px}
.compare .card{box-shadow:none}
.compare .featured{border-color:#5ca0dd;background:linear-gradient(145deg,#173657,#0d253a)}
.price{font-size:30px;color:var(--blue);margin:20px 0 8px;font-weight:700}
.feature-list li{padding:12px 0;font-size:14px;border-bottom:1px solid var(--border);color:#bed0e3}
.feature-list li:last-child{border:0}
.feature-list li:before{content:"·";color:var(--cyan);margin-right:10px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--border);border-radius:18px;overflow:hidden}
.metric{padding:28px;background:#10253d;border-right:1px solid var(--border)}
.metric:last-child{border:0}
.metric strong{display:block;font-size:37px;color:var(--cyan);line-height:1.2}
.metric span{font-size:14px;display:block;margin-top:12px}
.metric small{font-size:12px;color:var(--muted)}
.assurance{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.assurance h3{font-size:17px;color:var(--cyan);margin-bottom:12px}
.assurance p{font-size:14px}
.subscription{background:radial-gradient(ellipse at 100% 100%,#17497066,transparent 65%),#0c1b2e}
.form-box{padding:30px;border:1px solid #335579;background:rgba(23,46,73,.65);border-radius:20px}
label{color:var(--ink);font-size:14px}
select,input[type="text"]{background:#081a2d;border:1px solid #38536e;color:var(--ink);border-radius:9px;box-shadow:none;height:48px;padding:10px 13px;margin:8px 0 20px}
select:focus,input[type="text"]:focus{background:#0a2035;border-color:var(--blue);box-shadow:none;color:var(--ink)}
option{background:#10253d;color:var(--ink)}
.check-label{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:13px;margin:8px 0 22px}
input[type="checkbox"]{accent-color:var(--blue);margin:6px 0 0;flex-shrink:0}
.form-actions{display:flex;gap:12px;flex-wrap:wrap}
.site-footer{padding:43px 0 25px;background:#06101d}
.footer-top{display:flex;justify-content:space-between;gap:30px;padding-bottom:25px}
.footer-top p{font-size:13px;max-width:650px;margin-top:15px}
.footer-links{display:flex;gap:20px;align-items:flex-start;font-size:13px;color:var(--muted)}
.copyright{font-size:12px;color:#839ab3;border-top:1px solid var(--border);padding-top:23px;display:flex;justify-content:space-between;gap:20px}
@media(min-width:1025px){.grid-x.align-middle>.cell{margin-bottom:0}}
@media(max-width:1024px){:root{--space:62px}.container{padding:0 24px}.hero-cover{padding:40px 35px}.split-copy{padding-right:15px}.steps{gap:18px}.card{padding:23px}.hero-art{right:-220px}}
@media(max-width:768px){:root{--space:50px}.brand-row{min-height:65px}.brand-note{display:none}.hero-cover{min-height:auto;padding:34px 26px}.hero-copy p{font-size:14px}.hero-status{margin:18px 0 0;flex-wrap:wrap;padding:22px;gap:18px}.hero-art{opacity:.25}.split-copy{padding:0;margin-bottom:26px}.steps{grid-template-columns:repeat(2,1fr)}.assurance{grid-template-columns:1fr;gap:24px}.metrics{grid-template-columns:repeat(2,1fr)}.metric{border-bottom:1px solid var(--border)}.audience{grid-template-columns:1fr}.footer-top{flex-direction:column}.copyright{flex-direction:column;gap:7px}.scenario{gap:12px}.scenario-side{padding:18px}.quote-band{margin-bottom:24px}h1{letter-spacing:-1px}}
@media(max-width:520px){.container{padding:0 17px}.logo{font-size:18px}.nav-grid{grid-template-columns:1fr 1fr}.nav-item{justify-content:center;padding:9px 6px;font-size:13px}.hero{padding-top:18px}.hero-cover{padding:28px 22px;border-radius:18px}.hero-copy h1{font-size:34px}.hero-status{align-items:flex-start}.hero-status .button{width:100%}.countdown{font-size:17px}.scenario{grid-template-columns:1fr}.vs{text-align:center}.demo-content{padding:20px}.panel-bar{padding:15px;align-items:flex-start}.steps{gap:20px}.step p{font-size:13px}.news-item{grid-template-columns:35px 1fr;gap:13px;padding:21px}.news-index{font-size:25px}.metric{padding:22px 18px}.metric strong{font-size:31px}.form-box{padding:23px}.form-actions .button{width:100%}.quote-band blockquote{font-size:21px}.footer-links{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang page: category1 */
:root{--bg:#081322;--surface:#0d1c30;--surface2:#10243c;--ink:#f0f6ff;--muted:#9db1c9;--blue:#62aaff;--cyan:#67efdf;--border:rgba(151,188,232,.17);--radius:20px;--shadow:0 20px 55px rgba(0,0,0,.22);--space:80px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:160px}body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}a:hover{color:var(--cyan)}button,input,select{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}a:active,button:active{transform:translateY(1px)}img,svg{max-width:100%;display:block}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:inherit;color:var(--ink);font-weight:750;line-height:1.35}h1{font-size:clamp(32px,4.1vw,52px);letter-spacing:-1px}h2{font-size:30px}h3{font-size:20px}p{color:var(--muted)}ul{margin:0;list-style:none}.container{max-width:1200px;padding:0 28px;margin:auto}.site-header{position:sticky;top:0;z-index:30;background:rgba(8,19,34,.94);backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}.brand-row{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{display:flex;gap:12px;align-items:center;font-size:21px;font-weight:800;white-space:nowrap}.logo-mark{width:36px;height:36px;border:1px solid var(--blue);border-radius:11px;display:grid;place-items:center;color:var(--cyan);background:#153350;box-shadow:inset 0 0 14px #346fa833}.brand-note{font-size:12px;color:var(--muted);letter-spacing:1px}.dot{display:inline-block;width:6px;height:6px;background:var(--cyan);border-radius:50%;margin-right:8px}.nav-grid{display:grid;grid-template-columns:repeat(2,minmax(0,190px));gap:8px;padding-bottom:12px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 16px;border:1px solid transparent;border-radius:10px;color:var(--muted);font-size:14px}.nav-item:hover{background:#152b45;color:white}.nav-item.active{color:var(--cyan);background:rgba(71,138,207,.14);border-color:var(--border)}.nav-icon{font-size:19px;line-height:1}section{padding:var(--space) 0;border-bottom:1px solid var(--border)}section.alt{background:rgba(16,36,60,.36)}.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:2px;color:var(--cyan);margin-bottom:17px;font-weight:700}.eyebrow:before{content:"";height:2px;width:24px;background:var(--cyan)}.section-head{max-width:820px;margin-bottom:32px}.section-head p{margin-top:18px}.badge{display:inline-block;background:#17384b;border:1px solid #326773;color:var(--cyan);padding:5px 11px;border-radius:7px;font-size:12px;font-weight:500}.button{display:inline-block;margin:0;border-radius:10px;background:var(--blue);color:#061526;padding:15px 23px;border:1px solid var(--blue);font-size:14px;font-weight:700;line-height:1.3;transition:.2s;box-shadow:0 0 25px #408eff28}.button:hover,.button:focus{background:#8fc4ff;color:#061526;box-shadow:0 0 30px #408eff50}.button.secondary{background:transparent;color:var(--ink);border-color:#456184;box-shadow:none}.button.secondary:hover{background:#17314e}.card{margin:0;height:100%;background:linear-gradient(135deg,rgba(29,53,83,.64),rgba(13,28,48,.85));border:1px solid var(--border);border-radius:var(--radius);color:var(--ink);padding:28px;box-shadow:var(--shadow);overflow:hidden;transition:transform .2s,border-color .2s}.card:hover{transform:translateY(-3px);border-color:rgba(98,170,255,.45)}.card p{font-size:14px;margin-top:13px}.card .number{font-size:12px;color:var(--cyan);letter-spacing:2px;margin-bottom:22px;display:block}.grid-margin-x>.cell{margin-bottom:24px}.site-footer{padding:43px 0 25px;background:#06101d}.footer-top{display:flex;justify-content:space-between;gap:30px;padding-bottom:25px}.footer-top p{font-size:13px;max-width:650px;margin-top:15px}.footer-links{display:flex;gap:20px;align-items:flex-start;font-size:13px;color:var(--muted);white-space:nowrap}.copyright{font-size:12px;color:#839ab3;border-top:1px solid var(--border);padding-top:23px;display:flex;justify-content:space-between;gap:20px}
.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:30px}.breadcrumb span{margin:0 10px;color:#59708e}.hero{padding:30px 0 60px;background:radial-gradient(ellipse at 80% 50%,#16375b70,transparent 60%)}.hero-copy{padding-right:45px}.hero-copy h1 span{color:var(--blue);display:block}.hero-copy>p{margin-top:24px;font-size:17px;max-width:660px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero-note{font-size:12px!important}.vertical-visual{position:relative;width:270px;min-height:390px;margin:auto;border:1px solid #456689;border-radius:24px;padding:24px;background:linear-gradient(160deg,#173c5e,#0b1a2b 75%);box-shadow:var(--shadow);overflow:hidden}.visual-grid{position:absolute;inset:0;opacity:.18;background-image:linear-gradient(#62aaff55 1px,transparent 1px),linear-gradient(90deg,#62aaff55 1px,transparent 1px);background-size:30px 30px;transform:rotate(-20deg) scale(1.5)}.visual-content{position:relative;z-index:1}.visual-top{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}.emblem{margin:32px auto;width:136px;height:136px;display:grid;place-items:center;border:1px solid #62aaff88;transform:rotate(45deg);border-radius:26px;box-shadow:0 0 45px #438aff26,inset 0 0 35px #62aaff20}.emblem span{transform:rotate(-45deg);font-size:40px;font-weight:800;color:var(--cyan)}.visual-content h2{font-size:23px}.visual-content p{font-size:13px;margin-top:8px}.visual-progress{display:flex;gap:5px;margin-top:20px}.visual-progress i{height:3px;flex:1;background:#34506d}.visual-progress i:first-child{background:var(--cyan)}.insight-row{display:grid;grid-template-columns:1fr 1fr;gap:24px}.insight{padding:28px;border-left:2px solid var(--blue);background:var(--surface)}.insight p{font-size:14px;margin-top:12px}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;margin-top:32px}.step{border-top:1px solid #3c5c7b;padding-top:20px}.step b{color:var(--cyan);font-size:13px}.step h3{margin:14px 0 10px;font-size:18px}.step p{font-size:14px}.metric-list{border:1px solid var(--border);border-radius:20px;overflow:hidden;background:var(--surface)}.metric-row{display:grid;grid-template-columns:150px 1fr 1fr;gap:24px;padding:23px 26px;border-bottom:1px solid var(--border);font-size:14px}.metric-row:last-child{border:0}.metric-row p{font-size:14px}.metric-row strong{color:var(--blue)}.metric-row.heading{color:var(--muted);background:#142b45;font-size:12px}.side-copy{padding-right:34px}.side-copy p{margin-top:20px}.editor-note{padding:34px;border:1px solid #3a587c;border-radius:20px;background:linear-gradient(125deg,#173351,#0c1c30)}.editor-note blockquote{padding:0;margin:20px 0;border:0;color:var(--ink);font-size:22px;line-height:1.7}.editor-note p{font-size:13px}.news-list{display:grid;gap:16px}.news-item{display:grid;grid-template-columns:70px 1fr;gap:24px;padding:26px;background:#0e2036;border:1px solid var(--border);border-radius:16px}.news-index{font-size:30px;color:#5985b8;font-weight:700}.news-tag{display:block;font-size:12px;color:var(--cyan);margin-bottom:7px}.news-item p{font-size:14px;margin-top:12px}.safety-box{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;border:1px solid var(--border);padding:35px;border-radius:20px;background:#10243c}.safety-box p{font-size:14px;margin-top:14px}.disclosure{border-left:1px solid var(--border);padding-left:30px}.cta{margin-top:30px;display:flex;align-items:center;justify-content:space-between;gap:24px}.cta strong{font-size:20px}.cta p{font-size:14px;margin-top:6px}
@media(max-width:1024px){:root{--space:60px}.container{padding:0 24px}.hero-copy{padding-right:20px}.timeline{grid-template-columns:repeat(2,1fr)}.footer-top{flex-direction:column}.metric-row{grid-template-columns:120px 1fr 1fr}}
@media(max-width:768px){:root{--space:48px}.brand-note{display:none}.brand-row{min-height:65px}.hero-copy{padding-right:0}.vertical-visual{margin-top:30px;width:240px;min-height:350px}.emblem{width:115px;height:115px;margin:26px auto}.insight-row,.safety-box{grid-template-columns:1fr}.side-copy{padding:0 0 25px}.metric-row{gap:15px;padding:20px}.disclosure{border-left:0;border-top:1px solid var(--border);padding:24px 0 0}.copyright{flex-direction:column;gap:7px}.cta{align-items:flex-start;flex-direction:column}h2{font-size:26px}}
@media(max-width:520px){.container{padding:0 18px}.logo{font-size:18px}.nav-grid{grid-template-columns:1fr 1fr}.nav-item{padding:10px;font-size:13px}.timeline{grid-template-columns:1fr}.metric-row{grid-template-columns:1fr;gap:8px}.metric-row.heading{display:none}.metric-row p:first-of-type:before{content:"观察重点：";color:var(--ink)}.metric-row p:last-of-type:before{content:"判断边界：";color:var(--ink)}.news-item{grid-template-columns:34px 1fr;gap:15px;padding:20px}.news-index{font-size:23px}.safety-box,.editor-note,.card{padding:24px}.actions .button{flex:1;text-align:center;padding:14px 12px}.footer-links{flex-wrap:wrap}.hero-copy>p{font-size:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}