/* roulang page: index */
:root{
  --ink:#17142b;
  --ink-2:#282247;
  --violet:#46357a;
  --mint:#37e4be;
  --mint-deep:#13b991;
  --coral:#ff806d;
  --paper:#f7f7fb;
  --white:#ffffff;
  --line:#e5e5ef;
  --muted:#737087;
  --soft:#eeecf7;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 16px 42px rgba(35,28,68,.09);
  --container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.7}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img,svg{display:block;max-width:100%}
::selection{background:var(--mint);color:var(--ink)}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(23,20,43,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}
.nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;min-width:220px;color:#fff;font-weight:800;letter-spacing:.01em}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--ink);display:grid;place-items:center;box-shadow:0 0 0 5px rgba(55,228,190,.12)}
.brand-mark svg{width:20px;height:20px}
.brand small{display:block;font-size:10px;font-weight:600;letter-spacing:.12em;color:#aaa5c2;line-height:1.1}
.brand strong{display:block;font-size:15px;line-height:1.25}
.main-nav{display:flex;align-items:center;justify-content:center;gap:3px}
.main-nav a{position:relative;padding:9px 11px;color:#d2cee4;font-size:14px;white-space:nowrap;transition:.2s ease}
.main-nav a:after{content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;background:var(--mint);transform:scaleX(0);transition:transform .2s ease}
.main-nav a:hover,.main-nav a.active{color:#fff}
.main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:10px;font-weight:800;font-size:14px;line-height:1;transition:transform .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,.main-nav a:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(55,228,190,.55);outline-offset:3px}
.btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 22px rgba(55,228,190,.2)}
.btn-primary:hover{background:#65f0d0;box-shadow:0 12px 28px rgba(55,228,190,.27)}
.btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.05)}
.btn-ghost:hover{border-color:var(--mint);background:rgba(55,228,190,.12)}
.header-download{min-width:126px}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;color:#fff}
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:75px 0 70px}
.hero:before{content:"";position:absolute;width:520px;height:520px;right:-130px;top:-260px;border:1px solid rgba(55,228,190,.22);border-radius:50%;box-shadow:0 0 0 70px rgba(55,228,190,.035),0 0 0 140px rgba(55,228,190,.025)}
.hero:after{content:"";position:absolute;left:5%;bottom:34px;width:220px;height:1px;background:linear-gradient(90deg,transparent,var(--mint),transparent);transform:rotate(-12deg);opacity:.7}
.starfield{position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(circle at 12% 24%,#fff 0 1px,transparent 1.5px),radial-gradient(circle at 31% 65%,rgba(55,228,190,.8) 0 1px,transparent 1.5px),radial-gradient(circle at 77% 31%,#fff 0 1px,transparent 1.5px),radial-gradient(circle at 62% 75%,rgba(255,128,109,.85) 0 1.2px,transparent 1.8px),radial-gradient(circle at 91% 58%,#fff 0 1px,transparent 1.5px);opacity:.7}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.32fr) minmax(300px,.68fr);align-items:end;gap:55px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:24px;height:2px;background:currentColor}
.hero h1{max-width:760px;margin:14px 0 18px;font-size:clamp(38px,5vw,67px);letter-spacing:-.055em;line-height:1.13}
.hero h1 em{font-style:normal;color:var(--mint)}
.hero-copy{max-width:660px;margin:0;color:#c5c1d6;font-size:17px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-side{position:relative;border-left:1px solid rgba(255,255,255,.17);padding:18px 0 8px 30px}
.live-dot{display:flex;align-items:center;gap:8px;color:var(--mint);font-size:12px;font-weight:800;letter-spacing:.1em}
.live-dot i{width:8px;height:8px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 5px rgba(255,128,109,.15)}
.hero-side h2{margin:16px 0 10px;font-size:28px;line-height:1.35}
.hero-side p{margin:0;color:#bbb6cd;font-size:14px}
.hero-index{display:flex;gap:18px;margin-top:25px;padding-top:19px;border-top:1px solid rgba(255,255,255,.12)}
.hero-index span{font-size:12px;color:#a9a3c0}
.hero-index b{display:block;color:#fff;font-size:17px}
.section{padding:82px 0}
.section-tight{padding:55px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:28px}
.section-kicker{margin:0 0 4px;color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
.section-title{margin:0;font-size:clamp(25px,3vw,37px);line-height:1.25;letter-spacing:-.04em}
.section-desc{max-width:480px;margin:0;color:var(--muted);font-size:14px;text-align:right}
.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--violet);font-weight:800;font-size:14px}
.text-link:hover{color:var(--mint-deep)}
.text-link:after{content:"→";font-size:18px;line-height:1}
.live-ribbon{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ribbon-list{display:grid;grid-template-columns:1.1fr repeat(3,1fr);min-height:104px}
.ribbon-intro{display:flex;align-items:center;gap:13px;border-right:1px solid var(--line);padding-right:22px}
.ribbon-icon{display:grid;place-items:center;width:44px;height:44px;background:var(--ink);color:var(--mint);border-radius:13px}
.ribbon-intro strong{display:block;font-size:16px;line-height:1.25}
.ribbon-intro span{font-size:12px;color:var(--muted)}
.match-glance{padding:20px 18px;border-right:1px solid var(--line)}
.match-glance:last-child{border-right:0}
.match-glance small{color:var(--muted);font-size:12px}
.match-glance b{display:block;margin-top:4px;font-size:14px}
.status{display:inline-flex;align-items:center;gap:6px;margin-top:7px;color:var(--coral);font-size:12px;font-weight:800}
.status:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.schedule-panel{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
.day-tabs{display:flex;align-items:stretch;background:#f1f0f7;border-bottom:1px solid var(--line);overflow:auto}
.day-tabs button{flex:1;min-width:130px;padding:15px 18px;border:0;border-right:1px solid var(--line);background:transparent;color:var(--muted);font-weight:700}
.day-tabs button.active{background:var(--white);color:var(--ink);box-shadow:inset 0 -3px 0 var(--mint)}
.schedule-row{display:grid;grid-template-columns:95px 1fr 1fr auto;gap:18px;align-items:center;padding:17px 23px;border-bottom:1px solid var(--line)}
.schedule-row:last-child{border-bottom:0}
.schedule-time{font-weight:900;font-size:17px}
.schedule-event{color:var(--muted);font-size:14px}
.schedule-event b{display:block;color:var(--ink);font-size:15px}
.tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:999px;background:#e8f9f4;color:#198469;font-size:11px;font-weight:800;line-height:1.25}
.tag.dark{background:#eae7f7;color:var(--violet)}
.tag.warm{background:#fff0ec;color:#dc5a46}
.result-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:22px}
.result-intro{padding:32px;border-radius:var(--radius);background:var(--violet);color:#fff}
.result-intro h3{margin:10px 0;font-size:28px;line-height:1.25}
.result-intro p{margin:0;color:#d7d1ee;font-size:14px}
.result-list{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden}
.result-row{display:grid;grid-template-columns:100px 1fr auto;gap:18px;align-items:center;padding:19px 22px;border-bottom:1px solid var(--line)}
.result-row:last-child{border-bottom:0}
.result-row time{color:var(--muted);font-size:13px}
.result-row strong{font-size:15px}
.result-row small{display:block;color:var(--muted);font-size:12px}
.result-state{font-size:12px;color:var(--mint-deep);font-weight:800}
.channel-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:14px}
.channel-card{position:relative;min-height:190px;padding:23px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:.22s ease}
.channel-card:before{content:"";position:absolute;width:100px;height:100px;right:-32px;bottom:-42px;border-radius:50%;background:var(--soft)}
.channel-card:hover{transform:translateY(-4px);border-color:#bbb3df;box-shadow:var(--shadow)}
.channel-card:first-child{background:var(--ink);border-color:var(--ink);color:#fff}
.channel-card:first-child:before{background:rgba(55,228,190,.13)}
.channel-card h3{position:relative;margin:32px 0 8px;font-size:20px;line-height:1.25}
.channel-card p{position:relative;margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.channel-card:first-child p{color:#c4bfd6}
.channel-number{position:relative;color:var(--mint-deep);font-size:12px;font-weight:900;letter-spacing:.12em}
.channel-card:first-child .channel-number{color:var(--mint)}
.feature-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}
.feature-main{position:relative;min-height:355px;padding:36px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;border-radius:var(--radius);background:linear-gradient(145deg,#30265a,#17142b);color:#fff}
.feature-main:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 18%,rgba(55,228,190,.29),transparent 25%),linear-gradient(125deg,transparent 56%,rgba(255,255,255,.06) 56.2%,transparent 56.6%)}
.feature-main>*{position:relative}
.feature-main h3{max-width:480px;margin:11px 0;font-size:32px;line-height:1.25}
.feature-main p{max-width:510px;margin:0;color:#d2cee4}
.feature-stack{display:grid;gap:14px}
.story-line{display:block;padding:22px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white);transition:.2s ease}
.story-line:hover{border-color:#bdb4e0;box-shadow:var(--shadow)}
.story-line h3{margin:9px 0 7px;font-size:17px;line-height:1.4}
.story-line p{margin:0;color:var(--muted);font-size:13px}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:9px;color:var(--muted);font-size:12px}
.preview-layout{display:grid;grid-template-columns:.86fr 1.14fr;gap:40px;align-items:center}
.section-note{padding:28px;background:#ebe8f7;border-radius:var(--radius)}
.section-note h3{margin:10px 0;font-size:26px;line-height:1.3}
.section-note p{margin:0 0 20px;color:#5f5975;font-size:14px}
.preview-list{border-top:1px solid var(--line)}
.preview-item{display:grid;grid-template-columns:48px 1fr auto;gap:18px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line)}
.preview-num{font-size:20px;font-weight:900;color:#c2bddd}
.preview-item h3{margin:0 0 5px;font-size:17px;line-height:1.4}
.preview-item p{margin:0;color:var(--muted);font-size:13px}
.duel-band{background:#f0eff6}
.duel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
.duel-card{padding:23px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm)}
.duel-card:hover{border-color:#bdb4e0}
.duel-card header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}
.duel-card header span{color:var(--muted);font-size:12px}
.duel-teams{display:grid;grid-template-columns:1fr 36px 1fr;align-items:center;text-align:center;gap:7px}
.team-mark{width:43px;height:43px;margin:0 auto 8px;border:1px dashed #b7b1cf;border-radius:50%;background:#f6f5fa}
.duel-teams strong{font-size:13px;line-height:1.35}
.vs{font-size:11px;font-weight:900;color:var(--coral)}
.duel-card footer{margin-top:22px;padding-top:13px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;text-align:center}
.league-scroll{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.league-card{padding:22px 20px;border-left:4px solid var(--mint);background:var(--white);box-shadow:0 8px 22px rgba(35,28,68,.04)}
.league-card:nth-child(2){border-color:var(--coral)}
.league-card:nth-child(3){border-color:var(--violet)}
.league-card:nth-child(4){border-color:#f0be50}
.league-card b{display:block;font-size:17px}
.league-card span{display:block;margin-top:7px;color:var(--muted);font-size:13px}
.focus-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.focus-panel{padding:30px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white)}
.focus-panel.dark-panel{border-color:var(--ink);background:var(--ink);color:#fff}
.focus-panel h3{margin:9px 0 18px;font-size:26px}
.focus-list{list-style:none;margin:0;padding:0}
.focus-list li{padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}
.focus-list li:last-child{border-bottom:0}
.dark-panel .focus-list li{border-color:rgba(255,255,255,.13)}
.focus-list span{display:block;margin-top:3px;color:var(--muted);font-size:12px}
.dark-panel .focus-list span{color:#bbb6cd}
.data-strip{display:grid;grid-template-columns:1.12fr repeat(3,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white)}
.data-lead{padding:28px;background:#e8f9f4}
.data-lead h3{margin:8px 0;font-size:25px}
.data-lead p{margin:0;color:#43776a;font-size:13px}
.data-cell{padding:26px 22px;border-left:1px solid var(--line)}
.data-cell span{display:block;color:var(--muted);font-size:13px}
.data-cell b{display:block;margin-top:7px;font-size:18px}
.data-cell small{display:block;margin-top:4px;color:var(--mint-deep);font-size:12px;font-weight:700}
.news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
.news-major{padding:34px;border-radius:var(--radius);background:var(--white);border:1px solid var(--line)}
.news-major h3{margin:13px 0 10px;font-size:30px;line-height:1.3}
.news-major p{max-width:600px;margin:0 0 22px;color:var(--muted)}
.news-side{display:grid;gap:12px}
.mini-news{padding:19px 20px;background:#fff;border-left:3px solid var(--violet);box-shadow:0 6px 18px rgba(35,28,68,.04)}
.mini-news h3{margin:7px 0;font-size:16px;line-height:1.4}
.mini-news p{margin:0;color:var(--muted);font-size:13px}
.app-section{background:var(--ink);color:#fff;overflow:hidden}
.app-box{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:55px;align-items:center;padding:70px 0}
.app-box:after{content:"";position:absolute;width:450px;height:450px;right:-130px;bottom:-280px;border:55px solid rgba(55,228,190,.08);border-radius:50%}
.app-copy{position:relative;z-index:1}
.app-copy h2{margin:13px 0;font-size:clamp(30px,4vw,48px);line-height:1.2}
.app-copy p{max-width:570px;margin:0;color:#c5c1d6}
.app-tags{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 28px}
.app-tags span{padding:6px 10px;border:1px solid rgba(255,255,255,.2);border-radius:999px;color:#d9d6e6;font-size:12px}
.phone-wrap{position:relative;z-index:1;display:flex;justify-content:center}
.phone{width:260px;padding:10px;border:7px solid #393250;border-radius:33px;background:#151225;box-shadow:18px 24px 0 rgba(55,228,190,.16)}
.phone-screen{min-height:440px;padding:22px 16px;border-radius:22px;background:linear-gradient(160deg,#57468d,#201a39);overflow:hidden}
.phone-top{display:flex;justify-content:space-between;color:#fff;font-size:11px}
.phone-title{margin:29px 0 15px;font-size:19px;font-weight:900}
.phone-score{padding:15px;border-radius:14px;background:rgba(255,255,255,.13);color:#fff}
.phone-score small{color:#c8c1e6}
.phone-score b{display:block;margin:9px 0;font-size:17px}
.phone-row{height:12px;margin-top:12px;border-radius:8px;background:rgba(255,255,255,.16)}
.phone-row.short{width:65%}
.guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden}
.guide-step{position:relative;padding:28px 24px;border-right:1px solid var(--line)}
.guide-step:last-child{border-right:0}
.guide-step b{display:block;color:var(--mint-deep);font-size:12px;letter-spacing:.1em}
.guide-step h3{margin:12px 0 8px;font-size:19px}
.guide-step p{margin:0;color:var(--muted);font-size:13px}
.updates{background:#efedf6}
.update-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.update-card{display:flex;flex-direction:column;padding:23px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);transition:.2s ease}
.update-card:hover{transform:translateY(-3px);border-color:#bdb4e0;box-shadow:var(--shadow)}
.update-card h3{margin:10px 0 9px;font-size:18px;line-height:1.4}
.update-card p{display:-webkit-box;overflow:hidden;margin:0 0 18px;color:var(--muted);font-size:13px;line-height:1.7;-webkit-box-orient:vertical;-webkit-line-clamp:3}
.update-card .meta{margin-top:auto}
.empty-state{grid-column:1/-1;padding:38px;text-align:center;border:1px dashed #c9c4d9;border-radius:var(--radius-sm);color:var(--muted);background:rgba(255,255,255,.7)}
.center-action{text-align:center;margin-top:25px}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:45px;align-items:start}
.faq-layout h2{margin:8px 0;font-size:34px;line-height:1.3}
.faq-layout p{color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px 0;cursor:pointer;font-weight:800;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";color:var(--mint-deep);font-size:23px;font-weight:400}
.faq-item[open] summary:after{content:"−"}
.faq-item p{margin:0;padding:0 30px 19px 0;color:var(--muted);font-size:14px}
.site-footer{background:#111022;color:#d0cbe0;padding:56px 0 25px}
.footer-top{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:55px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{color:#fff}
.footer-brand .brand{min-width:0}
.footer-brand p{max-width:345px;margin:18px 0 0;color:#aaa5c2;font-size:13px}
.footer-group h3{margin:0 0 15px;color:#fff;font-size:14px}
.footer-group a{display:block;width:max-content;margin:8px 0;color:#aaa5c2;font-size:13px;transition:color .2s ease}
.footer-group a:hover{color:var(--mint)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#858096;font-size:12px}
.back-top{color:var(--mint)}
@media(max-width:1024px){
  .main-nav{gap:0}.main-nav a{padding:9px 7px;font-size:13px}.brand{min-width:190px}
  .hero-grid,.app-box{gap:32px}.channel-grid{grid-template-columns:repeat(2,1fr)}
  .league-scroll{grid-template-columns:repeat(2,1fr)}.schedule-row{grid-template-columns:80px 1fr auto}
  .schedule-event:nth-of-type(2){display:none}.data-strip{grid-template-columns:1fr 1fr}
  .data-lead{grid-column:1/-1}.data-cell:nth-child(2){border-left:0}
}
@media(max-width:768px){
  .container{width:min(100% - 32px,var(--container))}.nav-shell{height:68px}
  .main-nav{display:none}.menu-toggle{display:grid;place-items:center;margin-left:auto}.header-download{min-width:auto;padding:10px 12px;font-size:12px}
  .brand{min-width:0}.brand strong{font-size:13px}.brand small{font-size:9px}
  .hero{padding:60px 0}.hero-grid,.feature-layout,.preview-layout,.result-grid,.focus-grid,.news-layout,.app-box,.faq-layout{grid-template-columns:1fr}
  .hero-side{padding:22px 0 0;border-left:0;border-top:1px solid rgba(255,255,255,.17)}
  .section{padding:60px 0}.section-head{display:block}.section-desc{text-align:left;margin-top:10px}
  .ribbon-list{grid-template-columns:1fr 1fr}.ribbon-intro{grid-column:1/-1;padding:16px;border-bottom:1px solid var(--line);border-right:0}
  .match-glance:nth-child(3){border-right:0}.match-glance:last-child{display:none}
  .duel-grid,.guide-grid{grid-template-columns:1fr 1fr}.guide-step:nth-child(2){border-right:0}.guide-step:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .guide-step:last-child{border-right:0}.update-list{grid-template-columns:1fr}.phone-wrap{justify-content:flex-start}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
}
@media(max-width:520px){
  body{font-size:15px}.header-download{display:none}.menu-toggle{margin-left:auto}
  .hero h1{font-size:38px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}
  .ribbon-list,.channel-grid,.duel-grid,.league-scroll,.guide-grid,.data-strip{grid-template-columns:1fr}
  .match-glance{border-right:0;border-bottom:1px solid var(--line)}.match-glance:last-child{display:block}
  .schedule-row{grid-template-columns:64px 1fr;padding:16px}.schedule-row .tag{grid-column:2}
  .result-row{grid-template-columns:1fr auto;gap:8px}.result-row time{grid-column:1/-1}
  .channel-card{min-height:155px}.feature-main{min-height:300px;padding:25px}.feature-main h3{font-size:27px}
  .preview-item{grid-template-columns:36px 1fr}.preview-item>.tag{display:none}.focus-panel{padding:23px}
  .data-cell{border-left:0;border-top:1px solid var(--line)}.data-lead{grid-column:auto}
  .guide-step,.guide-step:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.guide-step:last-child{border-bottom:0}
  .phone{width:235px}.phone-screen{min-height:400px}.section-title{font-size:28px}
  .footer-top{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom p{margin:0 0 9px}
}

/* roulang page: article */
:root{
  --ink:#17142b;
  --ink-2:#282247;
  --violet:#46357a;
  --mint:#37e4be;
  --mint-deep:#13b991;
  --coral:#ff806d;
  --paper:#f7f7fb;
  --white:#ffffff;
  --line:#e5e5ef;
  --muted:#737087;
  --soft:#eeecf7;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 16px 42px rgba(35,28,68,.09);
  --container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img,svg{display:block;max-width:100%}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(23,20,43,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}
.nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;min-width:220px;color:#fff;font-weight:800;letter-spacing:.01em}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--ink);display:grid;place-items:center;box-shadow:0 0 0 5px rgba(55,228,190,.12)}
.brand-mark svg{width:20px;height:20px}
.brand small{display:block;font-size:10px;font-weight:600;letter-spacing:.12em;color:#aaa5c2;line-height:1.1}
.brand strong{display:block;font-size:15px;line-height:1.25}
.main-nav{display:flex;align-items:center;justify-content:center;gap:3px}
.main-nav a{position:relative;padding:9px 11px;color:#d2cee4;font-size:14px;white-space:nowrap;transition:.2s ease}
.main-nav a:after{content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;background:var(--mint);transform:scaleX(0);transition:transform .2s ease}
.main-nav a:hover,.main-nav a.active{color:#fff}
.main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:10px;font-weight:800;font-size:14px;line-height:1;transition:transform .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible,.main-nav a:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(55,228,190,.55);outline-offset:3px}
.btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 22px rgba(55,228,190,.2)}
.btn-primary:hover{background:#65f0d0;box-shadow:0 12px 28px rgba(55,228,190,.27)}
.btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.05)}
.btn-ghost:hover{border-color:var(--mint);background:rgba(55,228,190,.12)}
.header-download{min-width:126px}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;color:#fff}
.article-hero{position:relative;overflow:hidden;padding:56px 0 48px;background:var(--ink);color:#fff}
.article-hero:before{content:"";position:absolute;width:460px;height:460px;right:-100px;top:-255px;border:1px solid rgba(55,228,190,.2);border-radius:50%;box-shadow:0 0 0 70px rgba(55,228,190,.03),0 0 0 140px rgba(55,228,190,.02)}
.article-hero:after{content:"";position:absolute;bottom:0;left:10%;width:280px;height:1px;background:linear-gradient(90deg,transparent,var(--mint),transparent);transform:rotate(-8deg)}
.breadcrumb{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 24px;color:#b7b2c9;font-size:13px}
.breadcrumb a{color:#e1ddec;transition:color .2s ease}
.breadcrumb a:hover{color:var(--mint)}
.breadcrumb i{font-style:normal;color:#706b86}
.article-category{position:relative;z-index:1;display:inline-flex;align-items:center;gap:8px;margin-bottom:13px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
.article-category:before{content:"";width:24px;height:2px;background:currentColor}
.article-hero h1{position:relative;z-index:1;max-width:900px;margin:0;font-size:clamp(31px,4.2vw,55px);line-height:1.22;letter-spacing:-.05em}
.article-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:11px 18px;margin-top:24px;color:#c2bdd1;font-size:14px}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta span:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint)}
.page-section{padding:48px 0}
.reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:44px;align-items:start}
.article-main{min-width:0}
.article-intro{padding:25px 29px;border-left:4px solid var(--mint);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:#eefff9;color:#39364e;font-size:17px;line-height:1.9}
.article-intro p{margin:0}
.article-body{margin-top:31px;padding:clamp(25px,4vw,48px);border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
.article-body>*:first-child{margin-top:0}
.article-body>*:last-child{margin-bottom:0}
.article-body h2{margin:1.8em 0 .75em;padding-bottom:.48em;border-bottom:1px solid var(--line);font-size:27px;line-height:1.35;letter-spacing:-.03em}
.article-body h3{margin:1.5em 0 .65em;font-size:21px;line-height:1.45}
.article-body p{margin:0 0 1.2em;color:#38354c}
.article-body ul,.article-body ol{margin:0 0 1.35em;padding-left:1.4em;color:#38354c}
.article-body li{margin:.45em 0}
.article-body blockquote{margin:1.7em 0;padding:18px 22px;border-left:3px solid var(--violet);border-radius:0 10px 10px 0;background:var(--soft);color:#4b4565}
.article-body img{height:auto;margin:1.7em auto;border-radius:var(--radius-sm)}
.article-body table{display:block;width:100%;margin:1.5em 0;overflow-x:auto;border-collapse:collapse}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{background:var(--soft);color:var(--ink)}
.article-body a{color:var(--violet);font-weight:700;text-decoration:underline;text-decoration-color:rgba(70,53,122,.28);text-underline-offset:3px}
.article-body a:hover{color:var(--mint-deep)}
.reading-aside{position:sticky;top:100px}
.aside-card{padding:22px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white)}
.aside-card+.aside-card{margin-top:16px}
.aside-card h2{margin:0 0 13px;font-size:16px;line-height:1.4}
.aside-card p{margin:0;color:var(--muted);font-size:14px}
.topic-list{display:grid;gap:2px;margin:0;padding:0;list-style:none}
.topic-list a{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px;font-weight:700;transition:color .2s ease}
.topic-list a:last-child{border-bottom:0}
.topic-list a:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);flex:none}
.topic-list a:hover{color:var(--mint-deep)}
.article-tools{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;margin-top:26px;padding:20px 22px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white)}
.info-line{color:var(--muted);font-size:13px}
.info-line strong{color:var(--ink)}
.tool-actions{display:flex;gap:10px}
.tool-button{min-height:39px;padding:8px 13px;border:1px solid var(--line);border-radius:9px;background:var(--white);color:var(--violet);font-size:13px;font-weight:800;transition:.2s ease}
.tool-button:hover{border-color:var(--mint-deep);background:#effff9;color:var(--mint-deep)}
.related-section{padding:28px 0 70px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:21px}
.section-kicker{margin:0 0 4px;color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
.section-title{margin:0;font-size:clamp(25px,3vw,34px);line-height:1.25;letter-spacing:-.04em}
.section-desc{max-width:410px;margin:0;color:var(--muted);font-size:14px;text-align:right}
.related-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:18px}
.related-card{position:relative;display:flex;flex-direction:column;min-height:186px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:transform .2s ease,border .2s ease,box-shadow .2s ease}
.related-card:hover{transform:translateY(-4px);border-color:#c8c1e2;box-shadow:var(--shadow)}
.related-card.featured{background:var(--ink);border-color:var(--ink);color:#fff}
.related-card.featured:after{content:"";position:absolute;right:20px;top:18px;width:60px;height:60px;border:1px solid rgba(55,228,190,.35);border-radius:50%;box-shadow:0 0 0 15px rgba(55,228,190,.06)}
.card-label{display:inline-flex;width:max-content;padding:4px 9px;border-radius:999px;background:#e8f9f4;color:#198469;font-size:11px;font-weight:800}
.featured .card-label{background:rgba(55,228,190,.14);color:var(--mint)}
.related-card h3{max-width:88%;margin:14px 0 10px;font-size:20px;line-height:1.42}
.related-card p{max-width:92%;margin:0;color:var(--muted);font-size:14px}
.featured p{color:#c7c2d6}
.card-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:18px;color:var(--muted);font-size:12px}
.card-link{color:var(--violet);font-weight:800;font-size:14px}
.featured .card-link{color:var(--mint)}
.return-strip{padding:0 0 82px}
.return-box{display:flex;justify-content:space-between;align-items:center;gap:25px;padding:30px 34px;border-radius:var(--radius);background:var(--violet);color:#fff}
.return-box h2{margin:0 0 5px;font-size:24px}
.return-box p{margin:0;color:#d5d0e7;font-size:14px}
.site-footer{padding:58px 0 24px;background:var(--ink);color:#fff}
.footer-top{display:grid;grid-template-columns:1.7fr .8fr .8fr;gap:55px;padding-bottom:42px}
.footer-brand .brand{min-width:0}
.footer-brand p{max-width:420px;margin:17px 0 0;color:#b8b3c9;font-size:14px}
.footer-group h3{margin:3px 0 13px;color:#aaa5c2;font-size:12px;font-weight:800;letter-spacing:.09em}
.footer-group a{display:block;width:max-content;margin:7px 0;color:#f1eff7;font-size:14px;transition:color .2s ease}
.footer-group a:hover{color:var(--mint)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);color:#aaa5c2;font-size:13px}
.footer-bottom p{margin:0}
.back-top{color:var(--mint);font-weight:800}
.empty-state{padding:55px 25px;text-align:center;border:1px dashed #cfcbe0;border-radius:var(--radius);background:var(--white)}
.empty-state h2{margin:0 0 8px;font-size:25px}
.empty-state p{margin:0 0 20px;color:var(--muted)}
@media (max-width:1024px){
  .main-nav{gap:0}
  .main-nav a{padding-inline:8px}
  .reading-layout{grid-template-columns:minmax(0,1fr) 220px;gap:25px}
  .footer-top{gap:30px}
}
@media (max-width:768px){
  .container{width:min(var(--container),calc(100% - 32px))}
  .nav-shell{height:68px;gap:11px}
  .brand{min-width:0;gap:8px}
  .brand small{display:none}
  .brand strong{font-size:13px}
  .brand-mark{width:31px;height:31px}
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.1);background:var(--ink);flex-direction:column;align-items:stretch}
  .main-nav.open{display:flex}
  .main-nav a{padding:11px 4px}
  .main-nav a:after{left:0;right:auto;width:26px;bottom:5px}
  .menu-toggle{display:grid;place-items:center;flex:none}
  .header-download{min-width:auto;padding:10px 12px;font-size:12px}
  .article-hero{padding:38px 0 36px}
  .article-hero h1{font-size:32px}
  .article-meta{margin-top:18px}
  .page-section{padding:32px 0}
  .reading-layout{grid-template-columns:1fr}
  .reading-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .aside-card+.aside-card{margin-top:0}
  .article-body{margin-top:23px;padding:25px 20px}
  .article-body h2{font-size:24px}
  .related-grid{grid-template-columns:1fr}
  .section-head{align-items:start;flex-direction:column}
  .section-desc{text-align:left}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:520px){
  body{font-size:15px}
  .container{width:calc(100% - 28px)}
  .header-download{display:none}
  .article-hero{padding-top:31px}
  .breadcrumb{margin-bottom:18px}
  .article-hero h1{font-size:28px}
  .article-intro{padding:20px;font-size:16px}
  .reading-aside{grid-template-columns:1fr}
  .article-tools{align-items:flex-start;flex-direction:column}
  .tool-actions{width:100%}
  .tool-button{flex:1}
  .related-card{min-height:165px;padding:21px}
  .return-box{align-items:flex-start;flex-direction:column;padding:25px}
  .return-box .btn{width:100%}
  .footer-top{grid-template-columns:1fr;gap:23px}
  .footer-brand{grid-column:auto}
  .footer-bottom{align-items:flex-start;flex-direction:column}
}

/* roulang page: category1 */
:root{
      --ink:#17142b;
      --ink-2:#282247;
      --violet:#46357a;
      --violet-dark:#30245e;
      --mint:#37e4be;
      --mint-deep:#13b991;
      --coral:#ff806d;
      --paper:#f7f7fb;
      --white:#fff;
      --line:#e5e5ef;
      --muted:#737087;
      --soft:#eeecf7;
      --radius:18px;
      --radius-sm:12px;
      --shadow:0 16px 42px rgba(35,28,68,.09);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img,svg{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,20,43,.97);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}
    .nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:220px;color:#fff;font-weight:800;letter-spacing:.01em}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--ink);display:grid;place-items:center;box-shadow:0 0 0 5px rgba(55,228,190,.12)}
    .brand-mark svg{width:20px;height:20px}
    .brand small{display:block;font-size:10px;font-weight:600;letter-spacing:.12em;color:#aaa5c2;line-height:1.1}
    .brand strong{display:block;font-size:15px;line-height:1.25}
    .main-nav{display:flex;align-items:center;justify-content:center;gap:3px}
    .main-nav a{position:relative;padding:9px 11px;color:#d2cee4;font-size:14px;white-space:nowrap;transition:.2s ease}
    .main-nav a:after{content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;background:var(--mint);transform:scaleX(0);transition:transform .2s ease}
    .main-nav a:hover,.main-nav a.active{color:#fff}
    .main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:10px;font-weight:800;font-size:14px;line-height:1;transition:transform .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(55,228,190,.55);outline-offset:3px}
    .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 22px rgba(55,228,190,.2)}
    .btn-primary:hover{background:#65f0d0;box-shadow:0 12px 28px rgba(55,228,190,.27)}
    .btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.05)}
    .btn-ghost:hover{border-color:var(--mint);background:rgba(55,228,190,.12)}
    .header-download{min-width:126px}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;color:#fff}
    .page-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:64px 0 58px}
    .page-hero:before{content:"";position:absolute;width:520px;height:520px;right:-150px;top:-280px;border:1px solid rgba(55,228,190,.23);border-radius:50%;box-shadow:0 0 0 70px rgba(55,228,190,.035),0 0 0 140px rgba(55,228,190,.025)}
    .page-hero:after{content:"";position:absolute;left:8%;bottom:30px;width:250px;height:1px;background:linear-gradient(90deg,transparent,var(--mint),transparent);transform:rotate(-12deg)}
    .hero-inner{position:relative;z-index:1;max-width:850px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:currentColor}
    .page-hero h1{margin:15px 0 16px;font-size:clamp(36px,5vw,62px);line-height:1.15;letter-spacing:-.05em}
    .page-hero h1 em{font-style:normal;color:var(--mint)}
    .hero-copy{max-width:720px;margin:0;color:#c5c1d6;font-size:17px;line-height:1.85}
    .breadcrumb{padding:18px 0 0;color:var(--muted);font-size:13px}
    .breadcrumb a:hover{color:var(--violet)}
    .breadcrumb span{margin:0 8px;color:#b6b2c5}
    .section{padding:72px 0}
    .section-tight{padding:44px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:28px}
    .section-kicker{margin:0 0 4px;color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    .section-title{margin:0;font-size:clamp(25px,3vw,37px);line-height:1.25;letter-spacing:-.04em}
    .section-desc{max-width:500px;margin:0;color:var(--muted);font-size:14px;text-align:right}
    .filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:16px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .filter-bar button{padding:9px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:13px;font-weight:700;transition:.2s ease}
    .filter-bar button:hover,.filter-bar button.active{background:var(--ink);border-color:var(--ink);color:#fff}
    .feature-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
    .feature-card{position:relative;min-height:330px;padding:34px;background:linear-gradient(140deg,#29204e,#46357a);border-radius:var(--radius);color:#fff;overflow:hidden;box-shadow:var(--shadow)}
    .feature-card:after{content:"";position:absolute;right:-65px;bottom:-90px;width:270px;height:270px;border:1px solid rgba(55,228,190,.4);border-radius:50%;box-shadow:0 0 0 35px rgba(55,228,190,.08),0 0 0 70px rgba(55,228,190,.05)}
    .feature-card > *{position:relative;z-index:1}
    .feature-card h3{max-width:570px;margin:24px 0 14px;font-size:clamp(25px,3vw,39px);line-height:1.3}
    .feature-card p{max-width:570px;color:#d3cee3;margin:0}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:999px;background:#e8f9f4;color:#198469;font-size:11px;font-weight:800;line-height:1.25}
    .tag.dark{background:#eae7f7;color:var(--violet)}
    .tag.warm{background:#fff0ec;color:#dc5a46}
    .feature-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}
    .side-stack{display:grid;gap:22px}
    .info-card{padding:26px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .info-card h3{margin:13px 0 8px;font-size:21px}
    .info-card p{margin:0;color:var(--muted);font-size:14px}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .topic-card{padding:24px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);transition:.2s ease}
    .topic-card:hover{transform:translateY(-4px);border-color:var(--mint-deep);box-shadow:var(--shadow)}
    .topic-number{color:var(--coral);font-size:13px;font-weight:900;letter-spacing:.08em}
    .topic-card h3{margin:12px 0 8px;font-size:19px}
    .topic-card p{margin:0;color:var(--muted);font-size:14px}
    .timeline{border-left:2px solid #d8d4eb;margin:10px 0 0 10px;padding-left:28px}
    .timeline-item{position:relative;padding:0 0 26px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item:before{content:"";position:absolute;left:-36px;top:8px;width:13px;height:13px;border:3px solid var(--paper);border-radius:50%;background:var(--mint-deep);box-shadow:0 0 0 1px var(--mint-deep)}
    .timeline time{color:var(--violet);font-size:13px;font-weight:800}
    .timeline h3{margin:5px 0 4px;font-size:18px}
    .timeline p{margin:0;color:var(--muted);font-size:14px}
    .notice-strip{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;background:var(--soft);border:1px solid #ddd8f0;border-radius:var(--radius)}
    .notice-strip strong{font-size:18px}
    .notice-strip p{margin:3px 0 0;color:var(--muted);font-size:14px}
    .app-panel{display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;padding:38px;background:var(--ink);border-radius:var(--radius);color:#fff;overflow:hidden}
    .app-panel h2{margin:8px 0 10px;font-size:30px}
    .app-panel p{max-width:680px;margin:0;color:#c5c1d6}
    .device-shape{width:118px;height:190px;border:7px solid #70649c;border-radius:22px;padding:8px;background:#27203e;box-shadow:0 0 0 8px rgba(55,228,190,.08);transform:rotate(7deg)}
    .device-screen{height:100%;border-radius:12px;background:linear-gradient(160deg,var(--mint),#52418c 56%,#19152c);position:relative}
    .device-screen:after{content:"赛事\n更新";white-space:pre;position:absolute;left:14px;bottom:18px;color:#fff;font-size:14px;font-weight:800;line-height:1.35}
    .faq-list{display:grid;gap:12px;max-width:900px}
    .faq-list details{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px}
    .faq-list summary{cursor:pointer;font-weight:800;list-style:none;padding-right:20px;position:relative}
    .faq-list summary::-webkit-details-marker{display:none}
    .faq-list summary:after{content:"+";position:absolute;right:0;color:var(--violet);font-size:22px;line-height:1}
    .faq-list details[open] summary:after{content:"−"}
    .faq-list details p{margin:12px 0 0;color:var(--muted);font-size:14px}
    .cta-band{padding:54px 0;background:var(--violet);color:#fff}
    .cta-flex{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-band h2{margin:0 0 8px;font-size:30px}
    .cta-band p{margin:0;color:#d8d3e8}
    .site-footer{background:#121022;color:#fff;padding:54px 0 22px}
    .footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding-bottom:42px}
    .footer-brand p{max-width:390px;margin:18px 0 0;color:#aaa5bd;font-size:14px}
    .footer-group{display:flex;flex-direction:column;gap:8px}
    .footer-group h3{margin:4px 0 9px;color:#fff;font-size:15px}
    .footer-group a{color:#aaa5bd;font-size:14px;transition:.2s ease}
    .footer-group a:hover{color:var(--mint)}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#8e899f;font-size:13px}
    .footer-bottom p{margin:0}
    .back-top:hover{color:var(--mint)}
    @media(max-width:1024px){
      .main-nav a{padding-left:7px;padding-right:7px;font-size:13px}
      .brand{min-width:195px}
      .feature-grid{grid-template-columns:1fr}
      .topic-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .nav-shell{height:68px}
      .header-download{display:none}
      .menu-toggle{display:block}
      .main-nav{display:none;position:absolute;left:16px;right:16px;top:76px;padding:12px;align-items:stretch;flex-direction:column;background:var(--ink-2);border:1px solid rgba(255,255,255,.12);border-radius:14px}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .page-hero{padding:52px 0 48px}
      .section{padding:55px 0}
      .section-head{display:block}
      .section-desc{text-align:left;margin-top:10px}
      .topic-grid{grid-template-columns:1fr}
      .app-panel{grid-template-columns:1fr}
      .device-shape{justify-self:end}
      .notice-strip,.cta-flex{align-items:flex-start;flex-direction:column}
      .footer-top{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .brand{min-width:0}
      .brand strong{font-size:13px}
      .brand small{font-size:8px}
      .page-hero h1{font-size:38px}
      .feature-card{padding:25px;min-height:350px}
      .info-card{padding:22px}
      .footer-top{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .back-top{display:block;margin-top:10px}
    }

/* roulang page: category2 */
:root{
      --ink:#17142b;
      --ink-2:#282247;
      --violet:#46357a;
      --violet-deep:#30235f;
      --mint:#37e4be;
      --mint-deep:#13b991;
      --coral:#ff806d;
      --paper:#f7f7fb;
      --white:#fff;
      --line:#e5e5ef;
      --muted:#737087;
      --soft:#eeecf7;
      --radius:18px;
      --radius-sm:12px;
      --shadow:0 16px 42px rgba(35,28,68,.09);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img,svg{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,20,43,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}
    .nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:220px;color:#fff;font-weight:800}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--ink);display:grid;place-items:center;box-shadow:0 0 0 5px rgba(55,228,190,.12)}
    .brand-mark svg{width:20px;height:20px}
    .brand small{display:block;font-size:10px;font-weight:600;letter-spacing:.12em;color:#aaa5c2;line-height:1.1}
    .brand strong{display:block;font-size:15px;line-height:1.25}
    .main-nav{display:flex;align-items:center;justify-content:center;gap:3px}
    .main-nav a{position:relative;padding:9px 11px;color:#d2cee4;font-size:14px;white-space:nowrap;transition:.2s ease}
    .main-nav a:after{content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;background:var(--mint);transform:scaleX(0);transition:transform .2s ease}
    .main-nav a:hover,.main-nav a.active{color:#fff}
    .main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:10px;font-weight:800;font-size:14px;line-height:1;transition:transform .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(55,228,190,.55);outline-offset:3px}
    .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 22px rgba(55,228,190,.2)}
    .btn-primary:hover{background:#65f0d0;box-shadow:0 12px 28px rgba(55,228,190,.27)}
    .btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.05)}
    .btn-ghost:hover{border-color:var(--mint);background:rgba(55,228,190,.12)}
    .header-download{min-width:126px}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;color:#fff}
    .page-hero{position:relative;overflow:hidden;padding:72px 0 68px;background:var(--ink);color:#fff}
    .page-hero:before{content:"";position:absolute;width:520px;height:520px;right:-170px;top:-310px;border:1px solid rgba(55,228,190,.22);border-radius:50%;box-shadow:0 0 0 70px rgba(55,228,190,.035),0 0 0 140px rgba(55,228,190,.025)}
    .page-hero:after{content:"";position:absolute;left:8%;bottom:28px;width:240px;height:1px;background:linear-gradient(90deg,transparent,var(--mint),transparent);transform:rotate(-10deg)}
    .hero-content{position:relative;max-width:790px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:currentColor}
    .page-hero h1{margin:15px 0 17px;font-size:clamp(38px,5vw,64px);line-height:1.14;letter-spacing:-.055em}
    .page-hero h1 em{font-style:normal;color:var(--mint)}
    .hero-copy{max-width:700px;margin:0;color:#c5c1d6;font-size:17px;line-height:1.85}
    .crumbs{padding:22px 0 0;color:var(--muted);font-size:13px}
    .crumbs a:hover{color:var(--violet)}
    .section{padding:78px 0}
    .section-tight{padding:48px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:28px}
    .section-kicker{margin:0 0 4px;color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    .section-title{margin:0;font-size:clamp(25px,3vw,37px);line-height:1.25;letter-spacing:-.04em}
    .section-desc{max-width:500px;margin:0;color:var(--muted);font-size:14px;text-align:right}
    .surface{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .index-bar{display:flex;flex-wrap:wrap;gap:10px;padding:14px}
    .index-bar button{border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);padding:9px 16px;font-size:13px;font-weight:700;transition:.2s ease}
    .index-bar button:hover,.index-bar button.active{border-color:var(--mint-deep);background:#e8f9f4;color:#147d68}
    .feature-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
    .feature-card{position:relative;min-height:320px;overflow:hidden;padding:32px;background:linear-gradient(135deg,var(--violet-deep),#17142b);color:#fff}
    .feature-card:after{content:"";position:absolute;right:-70px;bottom:-110px;width:290px;height:290px;border:1px solid rgba(55,228,190,.35);border-radius:50%;box-shadow:0 0 0 36px rgba(55,228,190,.05),0 0 0 76px rgba(55,228,190,.04)}
    .feature-card>*{position:relative;z-index:1}
    .feature-card h3{max-width:530px;margin:22px 0 12px;font-size:29px;line-height:1.35}
    .feature-card p{max-width:540px;margin:0;color:#c9c5d9}
    .feature-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:999px;background:#e8f9f4;color:#198469;font-size:11px;font-weight:800;line-height:1.25}
    .tag.dark{background:#eae7f7;color:var(--violet)}
    .tag.warm{background:#fff0ec;color:#dc5a46}
    .side-note{padding:28px}
    .side-note h3{margin:0 0 13px;font-size:22px}
    .side-note p{margin:0 0 21px;color:var(--muted);font-size:14px}
    .note-list{margin:0;padding:0;list-style:none}
    .note-list li{display:flex;gap:12px;padding:13px 0;border-top:1px solid var(--line);font-size:14px}
    .note-list b{color:var(--mint-deep);font-size:13px}
    .reading-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .reading-card{padding:24px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;transition:.2s ease}
    .reading-card:hover{transform:translateY(-4px);border-color:#c9c2e7;box-shadow:var(--shadow)}
    .reading-card .number{color:var(--coral);font-size:13px;font-weight:900}
    .reading-card h3{margin:17px 0 9px;font-size:19px}
    .reading-card p{margin:0;color:var(--muted);font-size:14px}
    .timeline{position:relative;padding-left:30px}
    .timeline:before{content:"";position:absolute;left:7px;top:5px;bottom:5px;width:2px;background:#d7d2e8}
    .timeline-item{position:relative;padding:0 0 28px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-item:before{content:"";position:absolute;left:-28px;top:8px;width:11px;height:11px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px #e2faf4}
    .timeline-item h3{margin:0 0 5px;font-size:18px}
    .timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .app-strip{display:grid;grid-template-columns:1fr auto;align-items:center;gap:28px;padding:34px 38px;background:var(--ink-2);color:#fff;border-radius:var(--radius)}
    .app-strip h2{margin:0 0 8px;font-size:27px}
    .app-strip p{margin:0;color:#c7c2d9;font-size:14px}
    .app-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}
    .app-pills span{padding:6px 11px;border:1px solid rgba(255,255,255,.18);border-radius:999px;color:#d9d5e6;font-size:12px}
    .faq-list{max-width:850px;margin:0 auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-question{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;padding:20px 0;border:0;background:none;color:var(--ink);text-align:left;font-weight:800}
    .faq-question span:last-child{color:var(--violet);font-size:23px;transition:.2s ease}
    .faq-answer{display:none;padding:0 45px 20px 0;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta-band{padding:58px 0;background:#e9e6f6;text-align:center}
    .cta-band h2{margin:0 0 10px;font-size:32px}
    .cta-band p{max-width:610px;margin:0 auto 24px;color:var(--muted)}
    .site-footer{padding:54px 0 23px;background:var(--ink);color:#fff}
    .footer-top{display:grid;grid-template-columns:1.5fr .7fr .7fr;gap:60px;padding-bottom:40px}
    .footer-brand p{max-width:380px;margin:18px 0 0;color:#aaa5bd;font-size:14px}
    .footer-group{display:flex;flex-direction:column;gap:9px}
    .footer-group h3{margin:0 0 8px;color:#fff;font-size:14px}
    .footer-group a{color:#aaa5bd;font-size:14px;transition:.2s ease}
    .footer-group a:hover{color:var(--mint)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#878198;font-size:13px}
    .footer-bottom p{margin:0}
    .back-top{color:#c5c1d6}.back-top:hover{color:var(--mint)}
    @media(max-width:1024px){
      .main-nav a{padding-left:7px;padding-right:7px;font-size:13px}
      .brand{min-width:190px}
      .feature-layout{grid-template-columns:1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .nav-shell{height:68px}
      .brand{min-width:0}
      .header-download{display:none}
      .menu-toggle{display:block}
      .main-nav{display:none;position:absolute;left:17px;right:17px;top:75px;flex-direction:column;align-items:stretch;padding:10px;background:var(--ink-2);border:1px solid rgba(255,255,255,.15);border-radius:14px;box-shadow:var(--shadow)}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .page-hero{padding:55px 0 54px}
      .page-hero h1{font-size:42px}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-desc{margin-top:10px;text-align:left}
      .reading-grid{grid-template-columns:1fr}
      .app-strip{grid-template-columns:1fr;padding:28px}
      .footer-top{grid-template-columns:1fr 1fr;gap:32px}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .page-hero h1{font-size:35px}
      .hero-copy{font-size:15px}
      .crumbs{font-size:12px}
      .feature-card{min-height:350px;padding:25px}
      .feature-card h3{font-size:24px}
      .side-note{padding:23px}
      .footer-top{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .footer-bottom{display:block}
      .back-top{display:inline-block;margin-top:9px}
      .cta-band h2{font-size:27px}
    }

/* roulang page: category3 */
:root{
      --ink:#17142b;
      --ink-2:#282247;
      --violet:#46357a;
      --mint:#37e4be;
      --mint-deep:#13b991;
      --coral:#ff806d;
      --paper:#f7f7fb;
      --white:#fff;
      --line:#e5e5ef;
      --muted:#737087;
      --soft:#eeecf7;
      --radius:18px;
      --radius-sm:12px;
      --shadow:0 16px 42px rgba(35,28,68,.09);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img,svg{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,20,43,.97);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}
    .nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:220px;color:#fff;font-weight:800}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--ink);display:grid;place-items:center;box-shadow:0 0 0 5px rgba(55,228,190,.12)}
    .brand-mark svg{width:20px;height:20px}
    .brand small{display:block;font-size:10px;font-weight:600;letter-spacing:.12em;color:#aaa5c2;line-height:1.1}
    .brand strong{display:block;font-size:15px;line-height:1.25}
    .main-nav{display:flex;align-items:center;justify-content:center;gap:3px}
    .main-nav a{position:relative;padding:9px 11px;color:#d2cee4;font-size:14px;white-space:nowrap;transition:.2s ease}
    .main-nav a:after{content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;background:var(--mint);transform:scaleX(0);transition:transform .2s ease}
    .main-nav a:hover,.main-nav a.active{color:#fff}
    .main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:10px;font-weight:800;font-size:14px;line-height:1;transition:transform .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(55,228,190,.55);outline-offset:3px}
    .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 22px rgba(55,228,190,.2)}
    .btn-primary:hover{background:#65f0d0;box-shadow:0 12px 28px rgba(55,228,190,.27)}
    .btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.05)}
    .btn-ghost:hover{border-color:var(--mint);background:rgba(55,228,190,.12)}
    .header-download{min-width:126px}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;color:#fff}
    .page-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:62px 0 58px}
    .page-hero:before{content:"";position:absolute;width:430px;height:430px;right:-100px;top:-220px;border:1px solid rgba(55,228,190,.24);border-radius:50%;box-shadow:0 0 0 60px rgba(55,228,190,.035),0 0 0 120px rgba(55,228,190,.025)}
    .hero-inner{position:relative;max-width:850px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:currentColor}
    .page-hero h1{margin:15px 0 15px;font-size:clamp(36px,5vw,62px);letter-spacing:-.055em;line-height:1.15}
    .page-hero h1 em{font-style:normal;color:var(--mint)}
    .page-hero p{max-width:720px;margin:0;color:#c8c4d8;font-size:17px;line-height:1.85}
    .crumbs{margin-top:27px;color:#aaa5bf;font-size:13px}
    .crumbs a:hover{color:var(--mint)}
    .crumbs span{margin:0 9px;color:#615b7a}
    .section{padding:76px 0}
    .section-tight{padding:50px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:28px}
    .section-kicker{margin:0 0 5px;color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    .section-title{margin:0;font-size:clamp(26px,3vw,38px);line-height:1.25;letter-spacing:-.04em}
    .section-desc{max-width:500px;margin:0;color:var(--muted);font-size:14px}
    .filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
    .filter-label{margin-right:5px;color:var(--muted);font-size:13px;font-weight:700}
    .filter-btn{padding:9px 15px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:13px;font-weight:700;transition:.2s ease}
    .filter-btn:hover,.filter-btn.active{border-color:var(--mint-deep);background:#e8f9f4;color:#147e68}
    .result-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:24px;align-items:start}
    .result-panel,.side-panel,.feature-card,.guide-card,.faq-wrap{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
    .result-panel{overflow:hidden}
    .panel-top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 25px;border-bottom:1px solid var(--line)}
    .panel-top h2{margin:0;font-size:20px}
    .panel-top small{color:var(--muted)}
    .empty-state{padding:58px 28px;text-align:center;background:linear-gradient(135deg,#fff,#f7f6fc)}
    .empty-icon{width:58px;height:58px;margin:0 auto 16px;border-radius:17px;background:var(--soft);color:var(--violet);display:grid;place-items:center;font-size:25px;font-weight:900}
    .empty-state h3{margin:0 0 8px;font-size:20px}
    .empty-state p{max-width:430px;margin:0 auto;color:var(--muted);font-size:14px}
    .side-panel{padding:24px}
    .side-panel h3{margin:0 0 18px;font-size:19px}
    .side-list{margin:0;padding:0;list-style:none}
    .side-list li{display:flex;justify-content:space-between;gap:18px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
    .side-list li:last-child{border-bottom:0;padding-bottom:0}
    .side-list span{color:var(--muted)}
    .side-list b{color:var(--violet);font-size:13px}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:999px;background:#e8f9f4;color:#198469;font-size:11px;font-weight:800;line-height:1.25}
    .tag.warm{background:#fff0ec;color:#dc5a46}
    .feature-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
    .feature-card{padding:28px;position:relative;overflow:hidden}
    .feature-card.primary{background:var(--ink);color:#fff;border-color:var(--ink)}
    .feature-card.primary:after{content:"";position:absolute;right:-50px;bottom:-80px;width:210px;height:210px;border:1px solid rgba(55,228,190,.35);border-radius:50%;box-shadow:0 0 0 35px rgba(55,228,190,.06)}
    .feature-card h3{position:relative;margin:17px 0 10px;font-size:25px;line-height:1.35}
    .feature-card p{position:relative;margin:0;color:var(--muted);font-size:14px}
    .feature-card.primary p{color:#c9c4d8}
    .feature-number{color:var(--mint);font-size:12px;font-weight:900;letter-spacing:.1em}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .topic-card{padding:22px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;transition:.2s ease}
    .topic-card:hover{transform:translateY(-4px);border-color:#c9c3e4;box-shadow:var(--shadow)}
    .topic-card h3{margin:13px 0 7px;font-size:17px}
    .topic-card p{margin:0;color:var(--muted);font-size:13px}
    .update-strip{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:24px 28px;border-radius:var(--radius);background:var(--soft)}
    .update-strip h2{margin:0 0 5px;font-size:22px}
    .update-strip p{margin:0;color:var(--muted);font-size:14px}
    .app-section{background:var(--ink);color:#fff}
    .app-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
    .app-section .section-kicker{color:var(--mint)}
    .app-section .section-title{color:#fff}
    .app-copy{color:#c6c1d6;font-size:15px;line-height:1.85}
    .app-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:23px 0}
    .app-point{padding:13px 15px;border:1px solid rgba(255,255,255,.13);border-radius:10px;color:#ddd9e7;font-size:13px}
    .device-card{min-height:280px;padding:30px;position:relative;border:1px solid rgba(255,255,255,.14);border-radius:22px;background:linear-gradient(145deg,#292342,#1e1a35);overflow:hidden}
    .device-card:before{content:"";position:absolute;right:-50px;top:-60px;width:240px;height:240px;border:1px solid rgba(55,228,190,.32);border-radius:50%}
    .device-screen{position:relative;max-width:290px;margin:16px auto 0;padding:18px;border-radius:18px;background:#fff;color:var(--ink);box-shadow:0 18px 40px rgba(0,0,0,.25)}
    .screen-line{height:9px;margin:9px 0;border-radius:8px;background:#ebe9f5}
    .screen-line.short{width:58%}
    .screen-score{display:flex;justify-content:space-between;margin:18px 0;padding:12px;border-radius:10px;background:#e8f9f4;font-weight:800}
    .faq-wrap{overflow:hidden}
    .faq-wrap details{padding:20px 24px;border-bottom:1px solid var(--line)}
    .faq-wrap details:last-child{border-bottom:0}
    .faq-wrap summary{cursor:pointer;font-weight:800;list-style:none}
    .faq-wrap summary::-webkit-details-marker{display:none}
    .faq-wrap summary:after{content:"+";float:right;color:var(--mint-deep);font-size:22px;line-height:1}
    .faq-wrap details[open] summary:after{content:"−"}
    .faq-wrap details p{margin:13px 28px 0 0;color:var(--muted);font-size:14px}
    .cta-band{padding:42px 0;background:#e8f9f4}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:24px}
    .cta-inner h2{margin:0 0 6px;font-size:27px}
    .cta-inner p{margin:0;color:#53756e;font-size:14px}
    .site-footer{padding:57px 0 24px;background:var(--ink);color:#fff}
    .footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:45px;padding-bottom:40px}
    .footer-brand p{max-width:390px;margin:18px 0 0;color:#aaa5bd;font-size:13px}
    .footer-group{display:flex;flex-direction:column;gap:9px}
    .footer-group h3{margin:4px 0 8px;font-size:14px;color:#fff}
    .footer-group a{color:#aaa5bd;font-size:13px;transition:.2s ease}
    .footer-group a:hover{color:var(--mint)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#88839f;font-size:12px}
    .footer-bottom p{margin:0}
    .back-top:hover{color:var(--mint)}
    @media (max-width:1024px){
      .nav-shell{gap:12px}
      .brand{min-width:190px}
      .main-nav a{padding-left:7px;padding-right:7px;font-size:13px}
      .main-nav a:after{left:7px;right:7px}
      .result-layout,.feature-grid{grid-template-columns:1fr}
      .app-grid{gap:32px}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .nav-shell{height:68px}
      .main-nav{display:none;position:absolute;left:16px;right:16px;top:76px;padding:10px;flex-direction:column;align-items:stretch;background:var(--ink-2);border:1px solid rgba(255,255,255,.12);border-radius:14px}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .main-nav a:after{display:none}
      .header-download{display:none}
      .menu-toggle{display:block}
      .page-hero{padding:48px 0}
      .page-hero h1{font-size:42px}
      .section{padding:58px 0}
      .section-head,.cta-inner{display:block}
      .section-desc{margin-top:12px}
      .topic-grid{grid-template-columns:1fr 1fr}
      .app-grid{grid-template-columns:1fr}
      .footer-top{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:520px){
      .page-hero h1{font-size:35px}
      .page-hero p{font-size:15px}
      .filter-bar{align-items:stretch}
      .filter-label{width:100%}
      .filter-btn{flex:1}
      .topic-grid,.app-points{grid-template-columns:1fr}
      .panel-top{display:block}
      .panel-top small{display:block;margin-top:5px}
      .update-strip{display:block;padding:22px}
      .update-strip .btn{margin-top:18px}
      .footer-top{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .footer-bottom{display:block}
      .back-top{display:block;margin-top:8px}
    }

/* roulang page: category4 */
:root{
      --ink:#17142b;
      --ink-2:#282247;
      --violet:#46357a;
      --violet-deep:#30245c;
      --mint:#37e4be;
      --mint-deep:#13b991;
      --coral:#ff806d;
      --paper:#f7f7fb;
      --white:#fff;
      --line:#e5e5ef;
      --muted:#737087;
      --soft:#eeecf7;
      --radius:18px;
      --radius-sm:12px;
      --shadow:0 16px 42px rgba(35,28,68,.09);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img,svg{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,20,43,.96);border-bottom:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px)}
    .nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:220px;color:#fff;font-weight:800;letter-spacing:.01em}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--ink);display:grid;place-items:center;box-shadow:0 0 0 5px rgba(55,228,190,.12)}
    .brand-mark svg{width:20px;height:20px}
    .brand small{display:block;font-size:10px;font-weight:600;letter-spacing:.12em;color:#aaa5c2;line-height:1.1}
    .brand strong{display:block;font-size:15px;line-height:1.25}
    .main-nav{display:flex;align-items:center;justify-content:center;gap:3px}
    .main-nav a{position:relative;padding:9px 11px;color:#d2cee4;font-size:14px;white-space:nowrap;transition:.2s ease}
    .main-nav a:after{content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;background:var(--mint);transform:scaleX(0);transition:transform .2s ease}
    .main-nav a:hover,.main-nav a.active{color:#fff}
    .main-nav a:hover:after,.main-nav a.active:after{transform:scaleX(1)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:10px;font-weight:800;font-size:14px;line-height:1;transition:transform .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(55,228,190,.55);outline-offset:3px}
    .btn-primary{background:var(--mint);color:var(--ink);box-shadow:0 8px 22px rgba(55,228,190,.2)}
    .btn-primary:hover{background:#65f0d0;box-shadow:0 12px 28px rgba(55,228,190,.27)}
    .btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;background:rgba(255,255,255,.05)}
    .btn-ghost:hover{border-color:var(--mint);background:rgba(55,228,190,.12)}
    .header-download{min-width:126px}
    .menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;color:#fff}
    .page-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:68px 0 74px}
    .page-hero:before{content:"";position:absolute;width:480px;height:480px;right:-150px;top:-260px;border:1px solid rgba(55,228,190,.22);border-radius:50%;box-shadow:0 0 0 70px rgba(55,228,190,.035),0 0 0 140px rgba(55,228,190,.025)}
    .page-hero:after{content:"";position:absolute;left:8%;bottom:34px;width:230px;height:1px;background:linear-gradient(90deg,transparent,var(--mint),transparent);transform:rotate(-12deg)}
    .hero-content{position:relative;z-index:1;max-width:790px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:currentColor}
    .page-hero h1{margin:16px 0 18px;font-size:clamp(38px,5vw,66px);line-height:1.12;letter-spacing:-.055em}
    .page-hero h1 em{font-style:normal;color:var(--mint)}
    .hero-copy{max-width:700px;color:#c5c1d6;font-size:17px;line-height:1.85;margin:0}
    .crumbs{margin-top:26px;display:flex;gap:10px;align-items:center;color:#aaa5c2;font-size:13px}
    .crumbs a:hover{color:var(--mint)}
    .crumbs span:last-child{color:#fff}
    .section{padding:78px 0}
    .section-tight{padding:48px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:28px}
    .section-kicker{margin:0 0 4px;color:var(--violet);font-size:12px;font-weight:800;letter-spacing:.1em}
    .section-title{margin:0;font-size:clamp(25px,3vw,37px);line-height:1.25;letter-spacing:-.04em}
    .section-desc{max-width:500px;margin:0;color:var(--muted);font-size:14px;text-align:right}
    .filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
    .filter-bar button{border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);padding:9px 17px;font-size:13px;font-weight:700;transition:.2s ease}
    .filter-bar button:hover,.filter-bar button.active{border-color:var(--violet);background:var(--violet);color:#fff}
    .feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
    .feature-card{position:relative;min-height:310px;padding:32px;border-radius:var(--radius);overflow:hidden;background:linear-gradient(135deg,var(--violet-deep),#1d1938);color:#fff;box-shadow:var(--shadow)}
    .feature-card:after{content:"";position:absolute;width:220px;height:220px;right:-55px;bottom:-80px;border:1px solid rgba(55,228,190,.35);border-radius:50%;box-shadow:0 0 0 35px rgba(55,228,190,.05),0 0 0 70px rgba(55,228,190,.04)}
    .feature-card > *{position:relative;z-index:1}
    .feature-card h3{max-width:560px;margin:21px 0 13px;font-size:30px;line-height:1.35}
    .feature-card p{max-width:550px;margin:0;color:#c9c4d9}
    .feature-meta{display:flex;gap:10px;flex-wrap:wrap;color:#aaa5c2;font-size:13px}
    .feature-side{display:grid;gap:14px}
    .brief-card{padding:23px 24px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;transition:.2s ease}
    .brief-card:hover{transform:translateY(-3px);border-color:#c9c2e6;box-shadow:var(--shadow)}
    .brief-card h3{margin:12px 0 6px;font-size:19px}
    .brief-card p{margin:0;color:var(--muted);font-size:14px}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:999px;background:#e8f9f4;color:#198469;font-size:11px;font-weight:800;line-height:1.25}
    .tag.dark{background:#eae7f7;color:var(--violet)}
    .tag.warm{background:#fff0ec;color:#dc5a46}
    .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .news-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);min-height:210px;transition:.2s ease}
    .news-card:hover{transform:translateY(-4px);border-color:#c8c0e5;box-shadow:var(--shadow)}
    .news-card h3{margin:17px 0 9px;font-size:20px;line-height:1.45}
    .news-card p{margin:0;color:var(--muted);font-size:14px}
    .news-card .arrow{display:block;margin-top:22px;color:var(--violet);font-size:13px;font-weight:800}
    .news-card .arrow:after{content:" →"}
    .topic-band{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .topic-item{padding:25px;background:#fff}
    .topic-item b{display:block;color:var(--coral);font-size:28px;line-height:1;margin-bottom:14px}
    .topic-item h3{margin:0 0 7px;font-size:18px}
    .topic-item p{margin:0;color:var(--muted);font-size:14px}
    .update-strip{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;border-radius:var(--radius);background:#e9f8f4;border:1px solid #c8eee4}
    .update-strip strong{display:block;font-size:18px}
    .update-strip p{margin:3px 0 0;color:#4e766d;font-size:14px}
    .app-panel{display:grid;grid-template-columns:1fr .9fr;gap:30px;align-items:center;padding:38px;border-radius:var(--radius);background:var(--ink);color:#fff;overflow:hidden}
    .app-panel h2{margin:11px 0 12px;font-size:clamp(27px,3vw,40px);line-height:1.25}
    .app-panel p{margin:0;color:#c5c1d6}
    .app-points{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0}
    .app-points span{padding:7px 11px;border:1px solid rgba(255,255,255,.15);border-radius:999px;color:#d8d4e5;font-size:12px}
    .device-art{min-height:220px;display:grid;place-items:center;position:relative}
    .device-art:before{content:"";width:148px;height:238px;border:7px solid #3a345b;border-radius:27px;background:linear-gradient(155deg,#423874,#17142b);box-shadow:0 0 0 1px rgba(55,228,190,.35),0 22px 36px rgba(0,0,0,.28);transform:rotate(8deg)}
    .device-art:after{content:"赛事资讯  ·  赛程中心";position:absolute;z-index:1;padding:12px 9px;border-radius:8px;background:var(--mint);color:var(--ink);font-size:12px;font-weight:800;transform:rotate(8deg)}
    .faq-list{max-width:850px;margin:0 auto}
    .faq-list details{border-bottom:1px solid var(--line);padding:18px 0}
    .faq-list summary{cursor:pointer;list-style:none;font-weight:800;font-size:17px;position:relative;padding-right:30px}
    .faq-list summary::-webkit-details-marker{display:none}
    .faq-list summary:after{content:"+";position:absolute;right:3px;color:var(--violet);font-size:23px;line-height:1}
    .faq-list details[open] summary:after{content:"−"}
    .faq-list p{margin:12px 30px 0 0;color:var(--muted);font-size:14px}
    .site-footer{background:var(--ink);color:#fff;padding:54px 0 22px}
    .footer-top{display:grid;grid-template-columns:1.6fr .7fr .7fr;gap:50px;padding-bottom:40px}
    .footer-brand p{max-width:440px;margin:18px 0 0;color:#aaa5c2;font-size:14px}
    .footer-group{display:flex;flex-direction:column;gap:9px}
    .footer-group h3{margin:0 0 8px;color:#fff;font-size:15px}
    .footer-group a{color:#aaa5c2;font-size:14px;transition:.2s ease}
    .footer-group a:hover{color:var(--mint);transform:translateX(2px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#858099;font-size:13px}
    .footer-bottom p{margin:0}
    .back-top:hover{color:var(--mint)}
    @media(max-width:1024px){
      .main-nav a{padding-left:7px;padding-right:7px;font-size:13px}
      .brand{min-width:205px}
      .feature-layout,.app-panel{grid-template-columns:1fr}
      .device-art{min-height:190px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .nav-shell{height:68px}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 18px;flex-direction:column;align-items:stretch;background:var(--ink);border-top:1px solid rgba(255,255,255,.1)}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 10px}
      .main-nav a:after{left:10px;right:auto;width:28px;bottom:5px}
      .header-download{display:none}
      .menu-toggle{display:grid;place-items:center}
      .page-hero{padding:54px 0 58px}
      .page-hero h1{font-size:clamp(35px,11vw,52px)}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-desc{text-align:left;margin-top:12px}
      .news-grid,.topic-band{grid-template-columns:1fr}
      .feature-side{grid-template-columns:1fr 1fr}
      .footer-top{grid-template-columns:1fr 1fr;gap:32px}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .feature-side{grid-template-columns:1fr}
      .feature-card{padding:25px;min-height:280px}
      .feature-card h3{font-size:25px}
      .filter-bar{padding:12px}
      .filter-bar button{flex:1 1 auto}
      .app-panel{padding:27px 22px}
      .footer-top{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .footer-bottom{display:block}
      .back-top{display:inline-block;margin-top:10px}
    }