/* roulang page: index */
:root{
  --bg-deep:#080B0E;
  --bg-dark:#0E141B;
  --bg-panel:#111A23;
  --bg-card:#141E28;
  --bg-card2:#1A2530;
  --line:#22303E;
  --line-high:rgba(180,250,90,.35);
  --green:#9BFF2E;
  --green-hover:#B4FF5C;
  --red:#FF3B46;
  --cyan:#24D3C1;
  --text-main:#EAF2FF;
  --text-sub:#9DB0C7;
  --text-dim:#5E7188;
  --radius:10px;
  --radius-sm:6px;
  --shadow:0 10px 30px rgba(0,0,0,.25);
  --ring:0 0 0 3px rgba(155,255,46,.15);
  --header-h:68px;
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg-deep);color:var(--text-main);font-family:var(--font-cn);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background .22s ease}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
::selection{background:rgba(155,255,46,.28);color:#fff}
:focus-visible{outline:1px solid var(--green);outline-offset:3px;border-radius:3px}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:1.5rem;padding-right:1.5rem}
section{scroll-margin-top:calc(var(--header-h) + 18px)}
.section{padding:88px 0}
.section-alt{background:var(--bg-dark)}
.section-head{max-width:820px;margin-bottom:42px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-kicker{display:inline-flex;align-items:center;gap:.5rem;font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--green);margin-bottom:14px;text-transform:uppercase}
.section-kicker::before{content:"";width:20px;height:2px;background:var(--green);display:inline-block}
.section-head.center .section-kicker::after{content:"";width:20px;height:2px;background:var(--green);display:inline-block}
.section-title{font-size:clamp(1.65rem,3vw,2.5rem);line-height:1.2;font-weight:800;color:#fff}
.section-title span{color:var(--green)}
.section-sub{margin-top:14px;color:var(--text-sub);font-size:15px;max-width:760px;line-height:1.75}
.section-head.center .section-sub{margin-left:auto;margin-right:auto}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;min-height:44px;padding:.58rem 1.4rem;border-radius:var(--radius-sm);font-weight:700;font-size:15px;line-height:1.2;text-align:center;border:1px solid transparent;transition:transform .2s ease,border-color .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease,opacity .22s ease;white-space:nowrap}
.btn i{font-size:14px;transition:transform .2s ease}
.btn:hover i{transform:translateX(3px)}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--green);color:#08100A;box-shadow:0 6px 20px rgba(155,255,46,.16)}
.btn-primary:hover{background:var(--green-hover);box-shadow:0 9px 26px rgba(155,255,46,.28);transform:translateY(-1px);color:#08100A}
.btn-ghost{background:rgba(20,30,40,.55);border-color:#33455A;color:var(--text-main);backdrop-filter:blur(4px)}
.btn-ghost:hover{border-color:var(--green);color:var(--green);background:rgba(155,255,46,.06)}
.btn-danger{background:rgba(255,59,70,.08);border-color:rgba(255,59,70,.7);color:#FF8A92}
.btn-danger:hover{border-color:var(--red);color:#fff;background:rgba(255,59,70,.14)}
.text-link{display:inline-flex;align-items:center;gap:.4rem;font-weight:600;font-size:14px;color:var(--text-sub);transition:.2s}
.text-link i{transition:transform .2s}
.text-link:hover{color:var(--green)}
.text-link:hover i{transform:translateX(4px);color:var(--green)}
.tag{display:inline-block;padding:.18rem .7rem;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;border:1px solid transparent;white-space:nowrap}
.tag-green{color:var(--green);background:rgba(155,255,46,.08);border-color:rgba(155,255,46,.28)}
.tag-cyan{color:var(--cyan);background:rgba(36,211,193,.08);border-color:rgba(36,211,193,.28)}
.tag-red{color:#FF8890;background:rgba(255,59,70,.08);border-color:rgba(255,59,70,.3)}
.tag-dim{color:var(--text-sub);background:rgba(158,176,199,.06);border-color:var(--line)}

.site-header{position:sticky;top:0;z-index:999;background:rgba(8,11,14,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(34,48,62,.9);height:var(--header-h)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:1.5rem}
.brand{display:inline-flex;align-items:center;gap:.65rem;flex-shrink:0}
.brand-icon{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;background:rgba(155,255,46,.12);border:1px solid rgba(155,255,46,.4);color:var(--green);font-size:15px;box-shadow:0 0 18px rgba(155,255,46,.12)}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-text strong{font-size:20px;font-weight:900;letter-spacing:.02em;color:#fff}
.brand-text small{font-size:11px;color:var(--text-sub);letter-spacing:.06em;margin-top:3px}
.brand:hover .brand-text strong{color:var(--green)}
.site-nav{display:flex;align-items:center;gap:2rem}
.nav-link{position:relative;display:inline-flex;align-items:center;height:var(--header-h);font-size:15px;font-weight:500;color:var(--text-sub);border-bottom:2px solid transparent;transition:color .2s}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--green);box-shadow:0 4px 14px rgba(155,255,46,.35);opacity:0;transition:opacity .2s}
.nav-link:hover{color:var(--text-main)}
.nav-link:hover::after{opacity:1}
.nav-link.active{color:var(--green);text-shadow:0 0 14px rgba(155,255,46,.55)}
.nav-link.active::after{opacity:1}
.header-tools{display:flex;align-items:center;gap:.85rem}
.nav-login-mobile{display:none}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border-radius:6px;border:1px solid var(--line);background:rgba(20,30,40,.5);transition:.2s}
.nav-toggle:hover{border-color:var(--green)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-main);border-radius:2px;transition:.25s}
.nav-toggle.open span{background:var(--green)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.hero{position:relative;overflow:hidden;background:var(--bg-deep)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.24;filter:saturate(.85)}
.hero-overlay{position:absolute;inset:0;background:radial-gradient(circle at 80% 22%,rgba(155,255,46,.13),transparent 36%),linear-gradient(90deg,rgba(8,11,14,.94),rgba(8,11,14,.62) 45%,rgba(8,11,14,.9));z-index:1}
.hero-grid-bg{position:absolute;inset:0;z-index:0;opacity:.35;background-image:linear-gradient(rgba(155,255,46,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(155,255,46,.045) 1px,transparent 1px);background-size:44px 44px;mask:linear-gradient(to bottom,rgba(0,0,0,.8),transparent)}
.hero-lightline{position:absolute;height:1px;width:52%;bottom:96px;left:-20%;z-index:2;background:linear-gradient(90deg,transparent,rgba(155,255,46,.7),transparent);animation:heroFlow 7s linear infinite;opacity:.5}
@keyframes heroFlow{0%{transform:translateX(0)}100%{transform:translateX(170%)}}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);gap:3rem;align-items:center;min-height:calc(100vh - var(--header-h));padding-top:3.4rem;padding-bottom:2.8rem}
.hero-kicker{display:inline-flex;align-items:center;gap:.55rem;border:1px solid rgba(155,255,46,.35);background:rgba(155,255,46,.07);padding:.3rem .8rem;border-radius:999px;font-size:13px;font-weight:600;color:var(--green);margin-bottom:1.4rem;box-shadow:0 0 18px rgba(155,255,46,.08)}
.hero-kicker .pulse{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(155,255,46,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(155,255,46,.45)}70%{box-shadow:0 0 0 9px rgba(155,255,46,0)}100%{box-shadow:0 0 0 0 rgba(155,255,46,0)}}
.hero h1{font-size:clamp(2.35rem,5vw,4.15rem);line-height:1.1;font-weight:900;color:#fff;letter-spacing:-.01em}
.hero h1 .hl{color:var(--green);text-shadow:0 0 28px rgba(155,255,46,.25)}
.hero-lead{max-width:600px;margin-top:1.3rem;font-size:16px;color:var(--text-sub);line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}
.hero-chips{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.7rem}
.hero-chips li{color:var(--text-sub);font-size:13px;background:rgba(20,30,40,.5);border:1px solid var(--line);padding:.28rem .8rem;border-radius:6px}
.hero-panel{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid rgba(155,255,46,.22);background:rgba(20,30,40,.55);box-shadow:var(--shadow)}
.hero-panel img{width:100%;height:100%;min-height:300px;object-fit:cover;opacity:.75}
.hero-panel-meta{position:absolute;inset:auto 0 0 0;padding:2rem 1.3rem 1.3rem;background:linear-gradient(to top,rgba(6,9,12,.96),transparent)}
.hero-panel-meta .line{display:flex;align-items:center;gap:.5rem;font-size:13px;color:var(--text-sub)}
.hero-panel-meta .line i{color:var(--green)}
.hero-panel-meta .score-line{display:flex;gap:.6rem;margin-top:.85rem;flex-wrap:wrap}

.service-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.service-card{position:relative;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px 26px;overflow:hidden;transition:transform .24s ease,border-color .24s ease,background .24s ease}
.service-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,var(--green),transparent 80%);opacity:0;transition:.24s}
.service-card:hover{transform:translateY(-3px);border-color:rgba(155,255,46,.38);background:var(--bg-card2)}
.service-card:hover::before{opacity:1}
.service-icon{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:10px;background:rgba(155,255,46,.1);color:var(--green);border:1px solid rgba(155,255,46,.25);font-size:20px;margin-bottom:20px}
.service-card:nth-child(2) .service-icon{color:var(--cyan);background:rgba(36,211,193,.08);border-color:rgba(36,211,193,.25)}
.service-card:nth-child(3) .service-icon{color:var(--green)}
.service-card:nth-child(4) .service-icon{color:#FF8890;background:rgba(255,59,70,.09);border-color:rgba(255,59,70,.2)}
.service-card h3{font-size:18px;font-weight:800;color:#fff;margin-bottom:12px;line-height:1.45}
.service-card p{font-size:14px;color:var(--text-sub);line-height:1.75}
.service-more{margin-top:28px;display:block}

.news{padding:88px 0;background:var(--bg-dark);border-top:1px solid rgba(34,48,62,.55);border-bottom:1px solid rgba(34,48,62,.55)}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1.2rem;margin-bottom:38px;flex-wrap:wrap}
.news-ribbon{display:inline-flex;align-items:center;gap:.55rem;color:var(--red);font-size:13px;font-weight:600;background:rgba(255,59,70,.08);padding:.22rem .7rem;border-radius:999px;border:1px solid rgba(255,59,70,.28);margin-bottom:14px}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.news-card{position:relative;display:flex;flex-direction:column;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 22px;transition:transform .22s,border-color .22s,box-shadow .22s}
.news-card::after{content:"";position:absolute;left:26px;right:26px;bottom:0;height:2px;background:var(--green);transform:scaleX(0);transform-origin:left;transition:.3s}
.news-card:hover{border-color:rgba(155,255,46,.33);transform:translateY(-3px);box-shadow:var(--shadow)}
.news-card:hover::after{transform:scaleX(1)}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:14px}
.news-date{font-size:13px;color:var(--text-dim)}
.news-title{font-size:17px;line-height:1.6;font-weight:700;margin-bottom:10px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-title a{color:var(--text-main)}
.news-title a:hover{color:var(--green)}
.news-desc{font-size:14px;color:var(--text-sub);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.news-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid rgba(34,48,62,.75)}
.news-empty{border:1px dashed #5E7188;border-radius:var(--radius);background:rgba(20,30,40,.3);padding:58px 24px;text-align:center;color:var(--text-dim);font-size:15px;grid-column:1/-1}

.stats{position:relative;padding:78px 0;overflow:hidden;background:var(--bg-panel)}
.stats::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(155,255,46,.045),transparent);opacity:.6}
.stat-list{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.stat-item{position:relative;padding:1.5rem 2rem;text-align:center;border-right:1px solid rgba(34,48,62,.9)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:clamp(2.2rem,4vw,3.4rem);font-weight:800;color:var(--green);font-family:Bahnschrift,"Arial Narrow","DIN Alternate","Arial",sans-serif;line-height:1.1;display:flex;justify-content:center;align-items:baseline;gap:.1rem;letter-spacing:-.03em}
.stat-num sup{font-size:1.1rem;color:var(--text-dim);font-weight:600}
.stat-label{display:block;margin-top:.7rem;color:var(--text-sub);font-size:14px;letter-spacing:.04em}
.stat-line{width:28px;height:2px;background:var(--green);opacity:.7;margin:.85rem auto 0}

.case-head{split-like}
.case-grid{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:24px;align-items:stretch}
.case-column{display:grid;gap:24px}
.case-card{display:flex;flex-direction:column;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .24s,border-color .24s}
.case-card:hover{border-color:rgba(155,255,46,.4);transform:translateY(-3px)}
.case-card .case-cover{position:relative;overflow:hidden}
.case-card .case-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .case-cover img{transform:scale(1.03)}
.case-main .case-cover{max-height:380px;min-height:250px}
.case-title-block{display:block;padding:1.25rem 1.5rem 1.5rem;border-top:1px solid rgba(34,48,62,.8);background:linear-gradient(to bottom,rgba(20,30,40,.2),rgba(20,30,40,.7))}
.case-tags{display:flex;gap:.5rem;margin-bottom:.9rem;flex-wrap:wrap}
.case-title-block h3{color:#fff;font-size:20px;line-height:1.5;font-weight:800}
.case-title-block p{color:var(--text-sub);font-size:14px;margin-top:.45rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.case-action{display:flex;align-items:center;gap:.5rem;color:var(--text-sub);font-weight:700;font-size:14px;margin-top:1rem}
.case-action i{transition:transform .2s;color:var(--green)}
.case-card:hover .case-action{color:var(--green)}
.case-card:hover .case-action i{transform:translateX(5px)}
.case-row{display:grid;grid-template-columns:128px minmax(0,1fr);gap:18px;align-items:center;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:12px;transition:.24s}
.case-row:hover{border-color:rgba(155,255,46,.4);background:var(--bg-card2);transform:translateX(3px)}
.case-row .thumb{width:128px;height:96px;border-radius:8px;overflow:hidden}
.case-row .thumb img{width:100%;height:100%;object-fit:cover}
.case-row .case-row-body h3{font-size:15px;color:#fff;line-height:1.5;font-weight:750}
.case-row .case-row-body p{font-size:13px;color:var(--text-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:.2rem}
.case-row .case-row-body .case-link-row{display:inline-flex;align-items:center;gap:.35rem;margin-top:.35rem;font-size:13px;color:var(--green);font-weight:600}
.case-row .case-row-body .case-link-row i{font-size:12px}

.plan{position:relative;background:linear-gradient(135deg,#111A23,#0B1118 70%);padding:86px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}
.plan::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(155,255,46,.08),transparent 46%)}
.plan-track{position:relative;display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:20px;align-items:center;padding:34px 8px 44px;margin-top:18px}
.plan-step{position:relative;text-align:center;padding:22px 20px}
.plan-step .step-num{position:absolute;top:-14px;left:50%;transform:translateX(-50%);display:flex;align-items:center;justify-content:center;width:42px;height:42px;background:#0E141B;border:2px solid rgba(155,255,46,.5);color:var(--green);font-weight:900;font-size:15px;border-radius:50%;box-shadow:0 0 18px rgba(155,255,46,.16)}
.plan-step h3{font-size:18px;font-weight:800;color:#fff;margin-top:1.6rem}
.plan-step p{font-size:14px;color:var(--text-sub);margin-top:.35rem}
.plan-arrow{display:flex;align-items:center;justify-content:center;color:var(--green);font-size:22px;opacity:.85}
.plan-footer{display:flex;justify-content:center;align-items:center;gap:.5rem;color:var(--text-dim);font-size:13px;margin-top:16px}
.plan-line{height:2px;width:100%;max-width:680px;margin:24px auto 0;background:linear-gradient(90deg,transparent,rgba(155,255,46,.6),transparent);position:relative;top:-8px}

.faq{padding:88px 0}
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid var(--line);border-radius:10px;padding:0 24px;margin-bottom:12px;overflow:hidden;transition:border-color .22s,background .22s}
.faq-item.open{border-color:rgba(155,255,46,.42);background:var(--bg-card2)}
.faq-question{min-height:58px;display:flex;justify-content:space-between;align-items:center;gap:1rem;text-align:left;width:100%;font-size:16px;font-weight:650;color:#fff;cursor:pointer;color:var(--text-main)}
.faq-question:hover{color:var(--green)}
.faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;border:1px solid var(--line);color:var(--text-sub);transition:.25s}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--green);border-color:rgba(155,255,46,.5)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-answer p{padding:0 0 22px;color:var(--text-sub);font-size:14px;line-height:1.8;max-width:760px}
.faq-more{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:center;color:var(--text-dim);font-size:14px;margin-top:22px}

.cta{position:relative;padding:84px 0;background:var(--bg-deep);border-top:1px solid var(--line)}
.cta-strip{height:4px;background:linear-gradient(90deg,var(--green),var(--cyan),var(--green));background-size:200% 100%;animation:stripMove 6s linear infinite;margin-bottom:70px;border-radius:99px}
@keyframes stripMove{0%{background-position:0% 0}100%{background-position:200% 0}}
.cta-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:4rem;align-items:start}
.cta-title{font-size:clamp(1.8rem,3vw,2.55rem);line-height:1.3;font-weight:800;color:#fff}
.cta-title em{color:var(--green);font-style:normal}
.cta-desc{margin-top:1rem;color:var(--text-sub);font-size:15px;max-width:480px}
.cta-list{margin-top:1.6rem;display:grid;gap:.7rem}
.cta-list li{display:flex;gap:.6rem;color:var(--text-sub);font-size:14px}
.cta-list i{color:var(--green);margin-top:.4rem;font-size:13px}
.cta-button{margin-top:1.8rem}
.form-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.form-title{font-size:19px;font-weight:800;color:#fff;margin-bottom:5px}
.form-sub{color:var(--text-dim);font-size:13px;margin-bottom:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px}
.form-group.full{grid-column:1/-1}
.form-label{display:block;font-size:13px;color:var(--text-sub);margin-bottom:8px;letter-spacing:.03em}
.form-control{width:100%;background:var(--bg-dark);border:1px solid var(--line);border-radius:6px;padding:.7rem .9rem;color:var(--text-main);font-size:15px;transition:border-color .2s,box-shadow .2s;min-height:44px}
.form-control::placeholder{color:#54677b}
.form-control:focus{outline:none;border-color:var(--green);box-shadow:var(--ring)}
textarea.form-control{resize:vertical;min-height:104px}
.form-submit{display:flex;justify-content:flex-end;margin-top:6px}
.form-status{margin-top:12px;font-size:14px;color:var(--green);min-height:20px;text-align:right}

.site-footer{background:#07090B;border-top:1px solid rgba(34,48,62,.7);padding-top:70px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:3.2rem;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-about{color:var(--text-sub);font-size:14px;line-height:1.9;max-width:360px}
.footer-col-title{font-size:14px;color:#fff;font-weight:800;letter-spacing:.08em;margin-bottom:18px;display:flex;align-items:center;gap:.5rem}
.footer-col-title::before{content:"";width:4px;height:14px;background:var(--green);border-radius:99px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--text-sub);font-size:14px;display:inline-flex;align-items:center;gap:.35rem}
.footer-col a:hover{color:var(--green);padding-left:4px}
.footer-col a i{font-size:11px;opacity:.7}
.footer-support li{color:var(--text-sub);font-size:14px;display:flex;gap:.5rem;margin-bottom:10px}
.footer-support i{color:var(--green)}
.footer-bottom{border-top:1px solid rgba(34,48,62,.6);padding:22px 0;text-align:center;color:var(--text-dim);font-size:13px}
.footer-bottom .domain{color:var(--text-sub);font-weight:600}

@media(max-width:1189px){
  .service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-nav{position:fixed;top:var(--header-h);left:0;right:0;z-index:998;background:rgba(8,11,14,.98);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:1rem 1.5rem 1.5rem;flex-direction:column;align-items:stretch;gap:0;opacity:0;visibility:hidden;transform:translateY(-10px);transition:.25s}
  .site-nav.open{opacity:1;visibility:visible;transform:none}
  .nav-link{height:50px;border-bottom:1px solid rgba(34,48,62,.6);font-size:15px}
  .nav-link.active{background:rgba(155,255,46,.05);padding-left:12px;border-left:2px solid var(--green)}
  .nav-link::after{display:none}
  .nav-login-mobile{display:inline-flex;margin-top:16px;justify-content:center}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:minmax(0,1fr);min-height:auto}
  .hero-panel{max-width:640px}
  .hero h1{font-size:clamp(2.2rem,7vw,3.4rem)}
  .case-grid{grid-template-columns:minmax(0,1fr)}
  .plan-track{grid-template-columns:1fr;text-align:left}
  .plan-arrow{transform:rotate(90deg)}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:2.2rem}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2.2rem}
}
@media(max-width:767px){
  .section{padding:64px 0}
  .container{padding-left:1rem;padding-right:1rem}
  .service-grid{grid-template-columns:minmax(0,1fr)}
  .stats{padding:58px 0}
  .stat-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 0}
  .stat-item{padding:1rem .3rem;border-right:0}
  .stat-item:nth-child(2){border-right:0}
  .news{background:var(--bg-dark)}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .news-head{flex-direction:column;align-items:flex-start}
  .case-column{grid-template-columns:minmax(0,1fr)}
  .case-row{grid-template-columns:90px minmax(0,1fr);gap:12px;padding:10px}
  .case-row .thumb{width:90px;height:76px}
  .plan-start{padding:20px 6px 24px;grid-template-columns:1fr;gap:6px}
  .plan-step{text-align:center}
  .cta-strip{margin-bottom:44px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px 18px}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .btn{width:100%}
  .hero-kicker{font-size:12px}
  .hero-actions .btn{width:auto;flex:1 1 47%}
  .section-title{font-size:1.6rem}
}
@media(max-width:420px){
  .case-row .case-row-body p{display:none}
  .case-row{grid-template-columns:76px minmax(0,1fr)}
  .case-row .thumb{width:76px;height:70px}
}

/* roulang page: category1 */
:root {
            --bg-page: #080B0E;
            --bg-secondary: #0E141B;
            --bg-panel: #111A23;
            --bg-card: #141E28;
            --bg-card-hover: #1A2530;
            --bg-input: #121C26;
            --border-low: #22303E;
            --border-mid: #2A3A4A;
            --primary: #9BFF2E;
            --primary-hover: #B4FF5C;
            --accent-red: #FF3B46;
            --accent-cyan: #24D3C1;
            --text-main: #EAF2FF;
            --text-sub: #9DB0C7;
            --text-mute: #5E7188;
            --text-button: #08100A;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.25);
            --font-display: "Bahnschrift", "DIN Alternate", "Arial Narrow", sans-serif;
            --font-body: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container-w: 1240px;
        }

        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
        }

        ul,
        ol {
            list-style: none;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(8, 11, 14, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(34, 48, 62, 0.8);
        }

        .header-inner {
            height: 68px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--text-button);
            border-radius: 8px;
            font-size: 17px;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .brand-text strong {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.02em;
        }

        .brand-text small {
            font-size: 11px;
            color: var(--text-sub);
            letter-spacing: 0.14em;
            margin-top: 2px;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .site-nav .nav-link {
            position: relative;
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: 6px;
            transition: color 0.25s ease;
        }

        .site-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
            box-shadow: 0 4px 14px rgba(155, 255, 46, 0.3);
        }

        .site-nav .nav-link:hover,
        .site-nav .nav-link.active {
            color: var(--primary);
        }

        .site-nav .nav-link:hover::after,
        .site-nav .nav-link.active::after {
            transform: scaleX(1);
        }

        .site-nav .nav-link.active {
            text-shadow: 0 0 12px rgba(155, 255, 46, 0.6);
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: all 0.25s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--text-button);
            box-shadow: 0 0 0 rgba(155, 255, 46, 0);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(155, 255, 46, 0.18);
            color: #000;
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.03);
            border-color: var(--border-mid);
            color: var(--text-main);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border: 1px solid var(--border-low);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.02);
            transition: border-color 0.25s;
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .nav-login-mobile {
            display: none;
        }

        .category-banner {
            position: relative;
            padding: 72px 0 66px;
            background: linear-gradient(135deg, #0A1118 0%, #0D1620 55%, #111E2A 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border-low);
        }

        .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(155, 255, 46, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(155, 255, 46, 0.04) 1px, transparent 1px);
            background-size: 42px 42px;
            pointer-events: none;
        }

        .category-banner::after {
            content: "";
            position: absolute;
            right: -120px;
            top: -100px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(155, 255, 46, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .banner-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-mute);
            margin-bottom: 18px;
        }

        .breadcrumb a {
            color: var(--text-sub);
            transition: color 0.25s;
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb i {
            font-size: 10px;
            color: var(--text-mute);
        }

        .page-h1 {
            font-size: clamp(2rem, 4.2vw, 3.2rem);
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
        }

        .page-h1 .text-gradient {
            color: var(--primary);
            text-shadow: 0 0 18px rgba(155, 255, 46, 0.35);
        }

        .banner-desc {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.9;
            max-width: 540px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 28px;
            margin-top: 28px;
        }

        .banner-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-sub);
            font-size: 14px;
        }

        .banner-meta-item i {
            color: var(--primary);
            font-size: 13px;
        }

        .banner-figure {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-low);
            min-height: 300px;
            box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
        }

        .banner-figure img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .banner-figure::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, transparent 40%, rgba(8, 11, 14, 0.6) 100%);
        }

        .banner-figure-badge {
            position: absolute;
            left: 16px;
            bottom: 16px;
            z-index: 2;
            background: rgba(8, 11, 14, 0.8);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(155, 255, 46, 0.4);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 12px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-main);
        }

        .page-main {
            background: var(--bg-page);
        }

        .anchor-layout {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 0;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 64px 32px 80px;
        }

        .anchor-nav {
            position: sticky;
            top: 100px;
            align-self: start;
            border-right: 1px solid var(--border-low);
            padding-right: 28px;
            display: block;
        }

        .anchor-nav h3 {
            font-size: 14px;
            color: var(--text-mute);
            font-weight: 600;
            margin-bottom: 18px;
            padding-left: 4px;
            letter-spacing: 0.08em;
        }

        .anchor-nav ul li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 9px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: 8px;
            border-left: 2px solid transparent;
            transition: all 0.25s ease;
        }

        .anchor-nav ul li a i {
            font-size: 11px;
            color: var(--text-mute);
            transition: color 0.2s;
        }

        .anchor-nav ul li a:hover,
        .anchor-nav ul li a.active {
            color: var(--primary);
            background: rgba(155, 255, 46, 0.04);
            border-left-color: var(--primary);
        }

        .anchor-content {
            padding-left: 56px;
            min-width: 0;
        }

        .section-block {
            margin-bottom: 42px;
        }

        .section-block-title {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
        }

        .section-block-title .bar {
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(155, 255, 46, 0.5);
            flex-shrink: 0;
        }

        .para-lead {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-main);
            font-weight: 500;
            margin-bottom: 16px;
        }

        .para-text {
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 18px;
        }

        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin: 22px 0;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background: var(--bg-panel);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.7;
            transition: border-color 0.25s ease, transform 0.25s;
        }

        .feature-list li:hover {
            border-color: rgba(155, 255, 46, 0.35);
            transform: translateX(4px);
        }

        .feature-list li i {
            color: var(--primary);
            margin-top: 5px;
            flex-shrink: 0;
        }

        .card-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 22px;
            margin-top: 20px;
        }

        .sport-card {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            gap: 16px;
            flex-direction: column;
            transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s;
        }

        .sport-card:hover {
            transform: translateY(-4px);
            border-color: rgba(155, 255, 46, 0.4);
            background: var(--bg-card-hover);
        }

        .sport-card .icon-box {
            width: 46px;
            height: 46px;
            flex: 0 0 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(155, 255, 46, 0.08);
            border: 1px solid rgba(155, 255, 46, 0.2);
            color: var(--primary);
            font-size: 18px;
        }

        .sport-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-top: 8px;
        }

        .sport-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 10px;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            border-radius: 20px;
            background: rgba(36, 211, 193, 0.08);
            border: 1px solid rgba(36, 211, 193, 0.25);
            color: var(--accent-cyan);
            font-size: 12px;
            font-weight: 500;
        }

        .tag-item.red {
            background: rgba(255, 59, 70, 0.08);
            border-color: rgba(255, 59, 70, 0.3);
            color: #FF6B74;
        }

        .tag-item.green {
            background: rgba(155, 255, 46, 0.08);
            border-color: rgba(155, 255, 46, 0.25);
            color: var(--primary);
        }

        .step-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 20px;
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-panel);
        }

        .step-list .step-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 22px 26px;
            border-bottom: 1px solid var(--border-low);
            transition: background 0.3s ease;
        }

        .step-list .step-item:last-child {
            border-bottom: none;
        }

        .step-list .step-item:hover {
            background: rgba(155, 255, 46, 0.02);
        }

        .step-num {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.85;
            min-width: 48px;
            line-height: 1;
            margin-top: 4px;
        }

        .step-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .step-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 16px;
        }

        .hot-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: rgba(20, 30, 40, 0.6);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            transition: border-color 0.25s, background 0.25s;
        }

        .hot-item:hover {
            border-color: rgba(155, 255, 46, 0.35);
            background: var(--bg-card);
        }

        .hot-rank {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 800;
            color: var(--accent-red);
            margin-right: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 59, 70, 0.08);
            border: 1px solid rgba(255, 59, 70, 0.14);
        }

        .hot-item:nth-child(2) .hot-rank {
            color: var(--accent-cyan);
            background: rgba(36, 211, 193, 0.08);
            border-color: rgba(36, 211, 193, 0.16);
        }

        .hot-item:nth-child(3) .hot-rank {
            color: var(--primary);
            background: rgba(155, 255, 46, 0.07);
            border-color: rgba(155, 255, 46, 0.16);
        }

        .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .hot-info p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.5;
            margin-top: 2px;
        }

        .hot-item .date {
            font-size: 12px;
            color: var(--text-mute);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .cover-row {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            margin-top: 18px;
        }

        .cover-link-card {
            display: flex;
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 100px;
            transition: border-color 0.3s ease, transform 0.3s ease;
        }

        .cover-link-card:hover {
            border-color: rgba(155, 255, 46, 0.4);
            transform: translateY(-2px);
        }

        .cover-thumb {
            width: 100px;
            flex-shrink: 0;
            overflow: hidden;
        }

        .cover-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .cover-link-card:hover .cover-thumb img {
            transform: scale(1.05);
        }

        .cover-info {
            padding: 14px 16px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            justify-content: center;
            min-width: 0;
        }

        .cover-info .cat {
            font-size: 11px;
            color: var(--accent-cyan);
            font-weight: 500;
        }

        .cover-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .cta-banner {
            background: linear-gradient(90deg, rgba(155, 255, 46, 0.07) 0%, rgba(36, 211, 193, 0.04) 50%, transparent 100%);
            border: 1px solid rgba(155, 255, 46, 0.2);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .cta-banner h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .cta-banner h4 i {
            color: var(--primary);
        }

        .cta-banner p {
            font-size: 13px;
            color: var(--text-mute);
            margin-top: 2px;
        }

        .guide-alert {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: rgba(255, 59, 70, 0.06);
            border-left: 3px solid var(--accent-red);
            padding: 18px 22px;
            border-radius: 8px;
            margin-top: 28px;
        }

        .guide-alert i {
            color: var(--accent-red);
            margin-top: 5px;
            flex-shrink: 0;
        }

        .guide-alert p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
        }

        .guide-alert strong {
            color: var(--text-main);
        }

        .faq-list {
            border-top: 1px solid var(--border-low);
            margin-top: 24px;
        }

        .faq-list details {
            border-bottom: 1px solid var(--border-low);
            background: transparent;
            transition: background 0.3s ease;
        }

        .faq-list details[open] {
            background: rgba(155, 255, 46, 0.02);
        }

        .faq-list summary {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            transition: color 0.25s;
            list-style: none;
        }

        .faq-list summary::-webkit-details-marker {
            display: none;
        }

        .faq-list summary .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .faq-list summary .faq-icon::before,
        .faq-list summary .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .faq-list summary .faq-icon::before {
            left: 0;
            top: 9px;
            width: 20px;
            height: 2px;
        }

        .faq-list summary .faq-icon::after {
            top: 0;
            left: 9px;
            width: 2px;
            height: 20px;
        }

        .faq-list details[open] summary .faq-icon::after {
            transform: scaleY(0);
        }

        .faq-list details[open] summary {
            color: var(--primary);
        }

        .faq-list details .faq-body {
            padding: 0 20px 20px 20px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.85;
        }

        .relevant-section {
            border-top: 1px solid var(--border-low);
            margin-top: 48px;
            padding-top: 36px;
            scroll-margin-top: 90px;
        }

        .relevant-section h2 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .relevant-section h2 .dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 8px rgba(155, 255, 46, 0.8);
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-low);
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding: 56px 0 40px;
        }

        .footer-brand .brand {
            display: inline-flex;
            margin-bottom: 12px;
        }

        .footer-about {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 360px;
            margin-bottom: 14px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: var(--text-sub);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.25s;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-col ul li a i {
            font-size: 10px;
            opacity: 0.6;
        }

        .footer-col .footer-support li {
            color: var(--text-sub);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-col .footer-support li i {
            color: var(--text-mute);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-low);
            padding: 20px 0;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-mute);
        }

        .domain {
            font-family: var(--font-display);
            letter-spacing: 0.04em;
        }

        @media (max-width: 1189px) {
            .anchor-layout {
                grid-template-columns: 1fr;
                gap: 0;
                padding-top: 48px;
            }

            .anchor-nav {
                display: none;
            }

            .anchor-content {
                padding-left: 0;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 767px) {
            .site-header {
                height: auto;
            }

            .header-inner {
                height: 60px;
            }

            .site-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: #0b1117;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 22px;
                gap: 4px;
                border-bottom: 1px solid var(--border-low);
                transform: translateY(-110%);
                transition: transform 0.3s ease;
                z-index: 99;
                display: flex;
            }

            .site-nav.open {
                transform: translateY(0);
            }

            .site-nav .nav-link {
                padding: 14px 16px;
                border-radius: 8px;
                border-left: 3px solid transparent;
            }

            .site-nav .nav-link.active,
            .site-nav .nav-link:hover {
                border-left-color: var(--primary);
                background: rgba(155, 255, 46, 0.04);
            }

            .site-nav .nav-link::after {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .brand-text strong {
                font-size: 19px;
            }

            .brand-text small {
                font-size: 10px;
            }

            .header-cta {
                display: none;
            }

            .category-banner {
                padding: 48px 0 44px;
            }

            .banner-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .banner-figure {
                min-height: 220px;
            }

            .banner-desc {
                font-size: 15px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .anchor-layout {
                padding: 40px 16px 60px;
                max-width: 100%;
            }

            .section-block-title {
                font-size: 22px;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .sport-card {
                padding: 20px;
            }

            .step-list .step-item {
                padding: 16px 16px 16px 14px;
                gap: 14px;
            }

            .step-num {
                font-size: 24px;
                min-width: 38px;
            }

            .cover-row {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .cover-thumb {
                width: 84px;
            }

            .hot-item {
                flex-direction: row;
                align-items: flex-start;
                padding: 12px;
            }

            .hot-rank {
                min-width: 34px;
                height: 34px;
                font-size: 18px;
            }

            .hot-item .date {
                font-size: 11px;
                margin-left: auto;
            }

            .cta-banner {
                padding: 22px 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                padding: 40px 0 24px;
                gap: 28px;
            }

            .footer-bottom .container {
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
  --bg: #080B0E;
  --bg-2: #0E141B;
  --bg-3: #111A23;
  --card-bg: #141E28;
  --card-bg-2: #1A2530;
  --line: #22303E;
  --line-glow: rgba(180, 250, 90, .32);
  --main: #9BFF2E;
  --main-hover: #B4FF5C;
  --danger: #FF3B46;
  --cyan: #24D3C1;
  --text: #EAF2FF;
  --text-2: #9DB0C7;
  --text-3: #5E7188;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .25);
  --font: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .02em;
  cursor: pointer;
  transition: border-color .25s ease, background-color .25s ease, color .25s ease, transform .25s ease, box-shadow .25s ease;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--main);
  color: #08100A;
  box-shadow: 0 0 0 rgba(155, 255, 46, 0);
}

.btn-primary:hover {
  background: var(--main-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(155, 255, 46, .22);
}

.btn-outline {
  background: rgba(255, 255, 255, .03);
  border-color: var(--line);
  color: #EAF2FF;
}

.btn-outline:hover {
  border-color: var(--main);
  color: var(--main);
}

.btn-danger-line {
  background: transparent;
  border-color: rgba(255, 59, 70, .55);
  color: #FFB9BD;
}

.btn-danger-line:hover {
  border-color: var(--danger);
  color: #fff;
  background: rgba(255, 59, 70, .08);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--main);
  outline-offset: 3px;
}

::selection {
  background: rgba(155, 255, 46, .28);
  color: #fff;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 11, 14, .82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(34, 48, 62, .64);
}

.header-inner {
  display: flex;
  align-items: center;
  min-height: 68px;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: linear-gradient(135deg, rgba(155, 255, 46, .9), rgba(36, 211, 193, .6));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #08100A;
  font-size: 1.05rem;
  box-shadow: 0 0 22px rgba(155, 255, 46, .38);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text strong {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: .02em;
}

.brand-text small {
  font-size: .72rem;
  color: var(--text-2);
  letter-spacing: .08em;
  margin-top: 3px;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 68px;
  padding: 0 10px;
  font-weight: 500;
  font-size: .95rem;
  color: var(--text-2);
  border-bottom: 2px solid transparent;
  transition: color .25s ease, border-color .25s ease, text-shadow .25s ease;
}

.nav-link:hover {
  color: var(--text);
  border-bottom-color: var(--main);
  box-shadow: 0 4px 14px rgba(155, 255, 46, .18);
}

.nav-link.active {
  color: var(--main);
  text-shadow: 0 0 12px rgba(155, 255, 46, .5);
  border-bottom-color: var(--main);
}

.nav-login-mobile {
  display: none;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-cta {
  margin-left: 8px;
  min-height: 40px;
  padding: 0 18px;
  font-size: .92rem;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04);
  border-radius: 8px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  transition: transform .25s ease, opacity .25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Article Hero ===== */
.page-article {
  background: var(--bg);
}

.article-hero {
  position: relative;
  background: linear-gradient(118deg, rgba(8, 11, 14, .92) 0%, rgba(14, 20, 27, .58) 60%, rgba(10, 17, 24, .78) 100%), url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
  padding: 84px 0 92px;
}

.article-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--main), transparent);
  opacity: .5;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: .88rem;
  color: var(--text-2);
  gap: 8px;
  margin-bottom: 26px;
}

.breadcrumbs a {
  color: var(--text-2);
  transition: color .2s ease;
}

.breadcrumbs a:hover {
  color: var(--main);
}

.breadcrumbs i {
  font-size: .7rem;
  color: var(--text-3);
}

.article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(155, 255, 46, .12);
  border: 1px solid rgba(155, 255, 46, .25);
  color: var(--main);
  padding: 5px 11px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .03em;
}

.article-hero h1 {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  line-height: 1.18;
  color: #fff;
  max-width: 860px;
  margin-bottom: 22px;
}

.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  font-size: .9rem;
  color: var(--text-2);
}

.article-meta-row .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-3);
}

.article-meta-row i {
  color: var(--main);
  margin-right: 6px;
  font-size: .85rem;
}

/* ===== Article Section ===== */
.article-section {
  padding: 56px 0 72px;
  background: var(--bg);
}

.article-card {
  max-width: 820px;
  margin: 0 auto;
  background: #F7FAFD;
  border-radius: 18px;
  border: 1px solid #E4EAF1;
  padding: 52px 42px 48px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .28);
}

.article-body {
  max-width: 780px;
  margin: 0 auto;
  color: #202A34;
  font-size: 1.04rem;
  line-height: 1.85;
}

.article-body p {
  margin: 0 0 1.5em;
  letter-spacing: .02em;
}

.article-body strong {
  color: #111820;
  font-weight: 700;
}

.article-body em {
  color: #45505B;
}

.article-body a {
  color: #0E7E8F;
  border-bottom: 1px solid rgba(14, 126, 143, .3);
  transition: color .2s ease, border-color .2s ease;
}

.article-body a:hover {
  color: var(--main);
  border-color: var(--main);
}

.article-body h2 {
  font-size: 1.5rem;
  line-height: 1.4;
  color: #111820;
  margin: 1.9em 0 .8em;
  padding-left: 14px;
  position: relative;
}

.article-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: .24em;
  width: 5px;
  height: 1.2em;
  background: var(--main);
  border-radius: 3px;
  box-shadow: 0 0 12px rgba(155, 255, 46, .55);
}

.article-body h3 {
  font-size: 1.22rem;
  color: #172029;
  margin: 1.7em 0 .6em;
  line-height: 1.4;
}

.article-body blockquote {
  margin: 1.6em 0;
  padding: 16px 20px;
  background: rgba(155, 255, 46, .05);
  border-left: 4px solid var(--main);
  border-radius: 0 8px 8px 0;
  color: #4B5967;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.6em;
  padding-left: 1.4em;
}

.article-body ul li,
.article-body ol li {
  margin-bottom: .55em;
  padding-left: .2em;
}

.article-body ul li::marker {
  color: var(--main);
}

.article-body ol li::marker {
  color: var(--main);
  font-weight: 700;
}

.article-body img {
  border-radius: 8px;
  margin: 0 0 1.5em;
  box-shadow: 0 12px 30px rgba(20, 30, 40, .15);
}

.article-body figure {
  margin: 1.6em 0;
}

.article-body figcaption {
  text-align: center;
  font-size: .85rem;
  color: #6C7A8A;
  margin-top: .6em;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
}

.article-body th,
.article-body td {
  border: 1px solid #DDE5EC;
  padding: 10px 12px;
  text-align: left;
}

.article-body th {
  background: rgba(155, 255, 46, .1);
}

.not-found {
  padding: 40px 10px 20px;
  text-align: center;
}

.not-found .icon-ring {
  width: 76px;
  height: 76px;
  margin: 0 auto 24px;
  border-radius: 50%;
  border: 2px dashed rgba(155, 255, 46, .45);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--main);
  font-size: 1.7rem;
}

.not-found h2 {
  font-size: 1.8rem;
  color: #14202A;
  margin-bottom: 10px;
}

.not-found p {
  color: #6C7A8A;
  margin-bottom: 26px;
}

.article-end-nav {
  border-top: 1px solid #E2E7EC;
  margin-top: 40px;
  padding-top: 28px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.empty-article-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  background: #0D141C;
  color: #fff;
  border-radius: 6px;
  font-weight: 600;
  border: 1px solid var(--line);
  transition: all .25s ease;
}

.empty-article-btn:hover {
  border-color: var(--main);
  color: var(--main);
}

/* ===== Related Section ===== */
.related-section {
  background: var(--bg-2);
  padding: 68px 0 84px;
  border-top: 1px solid rgba(34, 48, 62, .58);
}

.section-heading {
  margin-bottom: 40px;
}

.section-heading h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  color: #fff;
  line-height: 1.25;
}

.section-heading p {
  color: var(--text-2);
  margin-top: 8px;
  max-width: 640px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  display: grid;
  grid-template-columns: 150px 1fr;
  min-height: 132px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.related-card:hover {
  border-color: rgba(155, 255, 46, .45);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .22);
}

.related-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.related-card-body {
  padding: 15px 15px 12px;
  display: flex;
  flex-direction: column;
}

.related-card-body .rel-label {
  font-size: .72rem;
  color: var(--cyan);
  letter-spacing: .06em;
  font-weight: 700;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.related-card-body h3 {
  font-size: .98rem;
  color: #EAF2FF;
  line-height: 1.45;
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card-body .rel-go {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--main);
  font-size: .82rem;
  font-weight: 600;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity .25s ease, transform .25s ease;
}

.related-card:hover .rel-go {
  opacity: 1;
  transform: translateX(0);
}

/* ===== Footer ===== */
.site-footer {
  background: #0A0F14;
  border-top: 1px solid rgba(34, 48, 62, .62);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding: 60px 0 40px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-about {
  color: var(--text-2);
  font-size: .92rem;
  line-height: 1.8;
  max-width: 360px;
}

.footer-col-title {
  font-size: .95rem;
  color: #fff;
  margin-bottom: 20px;
  font-weight: 700;
  position: relative;
  padding-bottom: 10px;
}

.footer-col-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--main);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-col ul li a,
.footer-col ul li {
  display: inline-flex;
  align-items: center;
  color: var(--text-2);
  font-size: .9rem;
  padding: 7px 0;
  transition: color .2s ease;
}

.footer-col ul li a:hover {
  color: var(--main);
}

.footer-col ul li a i {
  margin-left: 8px;
  font-size: .75rem;
  transition: transform .2s ease;
}

.footer-col ul li a:hover i {
  transform: translateX(3px);
}

.footer-col ul li i.fa-envelope,
.footer-col ul li i.fa-clock {
  color: var(--main);
  width: 24px;
  margin-right: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(34, 48, 62, .5);
  padding: 22px 0;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: .84rem;
  color: var(--text-3);
}

.footer-bottom .domain {
  color: #6B7E93;
  letter-spacing: .03em;
  font-weight: 500;
}

/* ===== Responsive ===== */
@media (max-width: 1190px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

@media (max-width: 900px) {
  .header-inner {
    min-height: 64px;
  }
  .site-nav {
    opacity: 0;
    visibility: hidden;
    position: absolute;
    top: calc(100% + 10px);
    left: 12px;
    right: 12px;
    margin: 0;
    background: rgba(10, 15, 21, .98);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 24px 50px rgba(0, 0, 0, .5);
    padding: 12px 14px 18px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    transform: translateY(-8px);
    transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
  }
  .site-nav.nav-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-link {
    min-height: 48px;
    padding: 8px 10px;
    border-bottom: 1px solid rgba(34, 48, 62, .7);
    border-left: 3px solid transparent;
    border-radius: 0;
    font-size: 1rem;
  }
  .nav-link:hover {
    border-bottom-color: rgba(34, 48, 62, .7);
    box-shadow: none;
    color: var(--main);
  }
  .nav-link.active {
    border-left-color: var(--main);
    border-bottom-color: rgba(34, 48, 62, .7);
    color: var(--main);
  }
  .nav-login-mobile {
    display: flex;
    justify-content: center;
    margin-top: 14px;
  }
  .header-cta {
    display: inline-flex;
  }
  .nav-toggle {
    display: flex;
  }
  .article-card {
    padding: 36px 24px;
  }
}

@media (max-width: 767px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .brand-text strong {
    font-size: 1.15rem;
  }
  .brand-text small {
    font-size: .65rem;
  }
  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: .95rem;
  }
  .header-inner {
    gap: 12px;
  }
  .header-cta {
    display: none;
  }
  .article-hero {
    padding: 66px 0 70px;
  }
  .article-meta-row {
    gap: 12px;
  }
  .article-meta-row .dot {
    display: none;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .related-card {
    grid-template-columns: 150px 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 44px 0 32px;
  }
  .footer-bottom .container {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
  .article-card {
    padding: 28px 18px;
    border-radius: 12px;
  }
  .article-body {
    font-size: .98rem;
  }
  .article-body table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

@media (max-width: 420px) {
  .related-card {
    grid-template-columns: 1fr;
  }
  .related-card img {
    height: 140px;
  }
  .article-hero h1 {
    font-size: 1.6rem;
  }
}

/* roulang page: category2 */
:root{
  --bg:#080B0E;
  --bg2:#0E141B;
  --bg3:#111A23;
  --card:#141E28;
  --card2:#1A2530;
  --line:#22303E;
  --line-hi:rgba(180,250,90,.35);
  --green:#9BFF2E;
  --green-hi:#B4FF5C;
  --red:#FF3B46;
  --cyan:#24D3C1;
  --text:#EAF2FF;
  --text2:#9DB0C7;
  --text3:#5E7188;
  --radius:10px;
  --shadow:0 10px 30px rgba(0,0,0,.25);
  --font:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --container:1240px;
  --pad:5rem;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{list-style:none}
input,textarea,select{font-family:inherit;font-size:1rem;color:var(--text)}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;border-radius:4px}
.container{max-width:var(--container);margin:0 auto;padding-left:1.25rem;padding-right:1.25rem}
.section-pad{padding:96px 0}
.text-green{color:var(--green)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55rem;min-height:44px;padding:.65rem 1.4rem;font-weight:700;font-size:.95rem;line-height:1;border-radius:6px;border:1px solid transparent;transition:all .25s ease;white-space:nowrap;cursor:pointer}
.btn i{font-size:.85em}
.btn-primary{background:var(--green);color:#08100A;border-color:var(--green)}
.btn-primary:hover{background:var(--green-hi);border-color:var(--green-hi);transform:translateY(-1px);box-shadow:0 8px 24px rgba(155,255,46,.2)}
.btn-ghost{background:rgba(10,15,22,.6);color:var(--text);border-color:rgba(233,242,255,.28)}
.btn-ghost:hover{border-color:var(--green);color:var(--green);box-shadow:0 0 0 1px rgba(155,255,46,.2)}
.section-kicker{display:inline-flex;align-items:center;gap:.45rem;font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--green);border:1px solid rgba(155,255,46,.3);padding:.3rem .9rem;border-radius:999px;background:rgba(155,255,46,.06)}
.section-head{margin-bottom:2.6rem}
.section-head.center{text-align:center;max-width:760px;margin-left:auto;margin-right:auto}
.section-head h2{font-size:clamp(1.7rem,3.2vw,2.5rem);line-height:1.2;margin-top:.8rem;letter-spacing:.02em}
.section-head p{margin-top:.9rem;color:var(--text2);max-width:680px}
.section-head.center p{margin-left:auto;margin-right:auto}

/* nav */
.site-header{position:sticky;top:0;z-index:120;height:68px;background:rgba(8,11,14,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(34,48,62,.7)}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:inline-flex;align-items:center;gap:.72rem;flex-shrink:0}
.brand-icon{width:38px;height:38px;display:flex;align-items:center;justify-content:center;background:var(--green);color:#08100A;border-radius:8px;font-size:1.15rem;transform:rotate(-2deg);box-shadow:0 0 18px rgba(155,255,46,.16)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.25rem;letter-spacing:.01em}
.brand-text small{color:var(--green);font-size:.68rem;letter-spacing:.18em}
.site-nav{display:flex;align-items:center;gap:1.5rem}
.nav-link{position:relative;font-size:.92rem;font-weight:500;color:var(--text2);padding:.55rem .1rem;transition:color .2s ease}
.nav-link:after{content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--green);box-shadow:0 0 14px rgba(155,255,46,.5);transform:scaleX(0);transform-origin:left;transition:transform .28s ease}
.nav-link:hover{color:var(--text)}
.nav-link:hover:after{transform:scaleX(1)}
.nav-link.active{color:var(--green);text-shadow:0 0 12px rgba(155,255,46,.6)}
.nav-link.active:after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:.85rem}
.header-cta{min-height:40px;padding:.5rem 1.25rem;font-size:.88rem}
.nav-login-mobile{display:none}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:46px;height:44px;align-items:center}
.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:all .25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* category hero */
.cat-hero{position:relative;padding:92px 0 80px;background:linear-gradient(105deg,rgba(8,11,14,.98) 0%,rgba(8,11,14,.88) 48%,rgba(8,11,14,.55) 100%),url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;border-bottom:1px solid rgba(155,255,46,.2)}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:.55rem;font-size:.85rem;color:var(--text3);margin-bottom:1.5rem}
.breadcrumb a{color:var(--text2);transition:color .2s}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb i{font-size:.72rem;color:#5e7188}
.breadcrumb span{color:var(--text2)}
.cat-flag{display:inline-flex;align-items:center;gap:.4rem;font-size:.8rem;letter-spacing:.08em;color:var(--cyan);border:1px solid rgba(36,211,193,.4);background:rgba(36,211,193,.08);padding:.3rem 1rem;border-radius:4px;margin-bottom:1.2rem}
.cat-flag i{font-size:.8em}
.cat-hero h1{font-size:clamp(2.2rem,4.6vw,3.6rem);line-height:1.16;letter-spacing:.01em;color:var(--text);font-weight:800}
.cat-hero h1 .text-symbol{color:var(--green);margin:0 .15em}
.cat-hero .lead-text{max-width:660px;margin-top:1.2rem;font-size:1.08rem;color:var(--text2)}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:.85rem;margin-top:1.9rem}
.cat-hero-bar{position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,var(--green) 0%,var(--green) 30%,transparent 78%);opacity:.5}

/* check section double-column split */
.check-section{background:var(--bg)}
.section-divider{background:linear-gradient(180deg,var(--bg),var(--bg2))}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.check-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:2.1rem 2rem;position:relative;overflow:hidden;box-shadow:var(--shadow);transition:border-color .28s,transform .28s,background .28s}
.check-card:before{content:"";position:absolute;top:0;left:0;width:3px;height:56px;background:var(--green)}
.check-card:nth-child(2):before{background:var(--cyan)}
.check-card:hover{border-color:var(--line-hi);transform:translateY(-2px);background:var(--card2)}
.check-card-head{display:flex;align-items:center;gap:.85rem;margin-bottom:1.2rem}
.icon-ic{width:44px;height:44px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:rgba(155,255,46,.1);color:var(--green);border:1px solid rgba(155,255,46,.3);border-radius:8px;font-size:1.1rem}
.icon-ic.cyan{background:rgba(36,211,193,.1);color:var(--cyan);border-color:rgba(36,211,193,.3)}
.check-card h3{font-size:1.22rem;letter-spacing:.02em}
.check-card ul{margin-top:.4rem}
.check-card ul li{position:relative;padding:.42rem 0 .42rem 2rem;color:var(--text2);font-size:.96rem;border-bottom:1px dashed rgba(34,48,62,.7)}
.check-card ul li:last-child{border-bottom:0}
.check-card ul li:before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:.55rem;color:var(--green);font-size:.8rem}
.check-card:nth-child(2) ul li:before{color:var(--cyan)}

/* steps belt */
.steps-section{background:var(--bg2);border-top:1px solid rgba(34,48,62,.5);border-bottom:1px solid rgba(34,48,62,.5);position:relative}
.steps-belt{display:flex;align-items:stretch;background:linear-gradient(115deg,rgba(20,30,40,.9),rgba(26,37,48,.9));border:1px solid var(--line);border-radius:12px;overflow:hidden;position:relative;box-shadow:var(--shadow)}
.step-item{flex:1;padding:2.4rem 2rem 2.2rem;position:relative;z-index:2}
.step-item + .step-arrow{position:relative;display:flex;align-items:center;justify-content:center}
.step-arrow{width:56px;color:var(--green);font-size:1.15rem;background:rgba(155,255,46,.04);border-left:1px solid rgba(34,48,62,.7);border-right:1px solid rgba(34,48,62,.7)}
.step-arrow i{animation:pushArrow 1.6s ease-in-out infinite}
.step-no{font-family:"Bahnschrift","Arial Narrow",sans-serif;font-size:2.6rem;font-weight:800;color:var(--green);display:block;line-height:1;margin-bottom:.7rem;letter-spacing:.02em}
.step-item h3{font-size:1.1rem;margin-bottom:.4rem;color:#fff}
.step-item p{color:var(--text2);font-size:.93rem}
.belt-glow{height:3px;margin-top:1.4rem;background:linear-gradient(90deg,var(--green) 0%,var(--green-hi) 34%,rgba(36,211,193,.6) 72%,transparent 100%);box-shadow:0 0 16px rgba(155,255,46,.35)}

/* device cards */
.device-section{background:var(--bg3)}
.device-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.device-card{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .3s,border-color .3s}
.device-card:hover{transform:translateY(-3px);border-color:var(--line-hi)}
.device-thumb{position:relative;padding-top:52%;overflow:hidden}
.device-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.85)}
.device-thumb:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,11,14,0) 30%,rgba(8,11,14,.75) 100%);pointer-events:none}
.device-info{padding:1.5rem 1.8rem 1.8rem;display:flex;flex-direction:column;gap:.65rem;flex:1}
.device-info h3{font-size:1.2rem;display:flex;align-items:center;gap:.55rem}
.device-info h3 i{color:var(--green);font-size:.9rem}
.device-info p{color:var(--text2);font-size:.98rem}
.device-info ul{margin-top:.2rem;display:grid;gap:.35rem}
.device-info ul li{position:relative;padding-left:1.35rem;color:var(--text2);font-size:.92rem}
.device-info ul li:before{content:"\e0a4";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:.05rem;color:var(--cyan);font-size:.72rem}
.device-tag{position:absolute;left:16px;bottom:14px;z-index:2;font-size:.75rem;letter-spacing:.1em;color:var(--green);background:rgba(8,11,14,.72);border:1px solid rgba(155,255,46,.3);padding:.25rem .7rem;border-radius:4px;backdrop-filter:blur(4px)}

/* security note */
.security-notice{background:#0b1015}
.security-box{display:grid;grid-template-columns:1.1fr 1.7fr;gap:2.2rem;align-items:center;background:var(--card);border:1px solid rgba(255,59,70,.5);border-radius:12px;padding:2.4rem 2.6rem;position:relative;overflow:hidden;box-shadow:0 0 40px rgba(255,59,70,.06)}
.security-box:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--red)}
.security-box .red-pill{background:rgba(255,59,70,.14);color:#ff8d93;display:inline-flex;align-items:center;gap:.45rem;font-size:.8rem;letter-spacing:.14em;padding:.3rem .8rem;border:1px solid rgba(255,59,70,.35);border-radius:4px;margin-bottom:1.2rem}
.security-box h2{font-size:1.6rem;line-height:1.3}
.security-list{display:grid;gap:1rem}
.security-list li{display:flex;gap:.8rem;align-items:flex-start;color:var(--text2);line-height:1.65;font-size:.96rem}
.security-list li i{color:var(--red);margin-top:.27rem}
.security-list li strong{color:var(--text)}

/* faq */
.faq-section{background:var(--bg)}
.faq-container{max-width:900px}
.faq-list{display:grid;gap:12px;margin-top:2.4rem}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:10px;transition:border-color .3s,box-shadow .3s;overflow:hidden}
.faq-item.open,.faq-item:hover{border-color:rgba(155,255,46,.4)}
.faq-item.open{box-shadow:0 0 24px rgba(155,255,46,.06)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;text-align:left;min-height:56px;padding:1rem 1.5rem;font-size:1.02rem;font-weight:600;color:#f1f7ff;transition:color .2s}
.faq-q:hover{color:var(--green)}
.faq-icon{width:26px;height:26px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid rgba(155,255,46,.5);color:var(--green);transition:all .3s ease}
.faq-icon i{transition:transform .3s ease;font-size:.85rem}
.faq-item.open .faq-icon{background:var(--green);color:#08100a}
.faq-item.open .faq-icon i{transform:rotate(45deg)}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .35s ease,opacity .3s ease}
.faq-item.open .faq-a{max-height:280px;opacity:1}
.faq-inner{padding:0 1.5rem 1.35rem;color:var(--text2);font-size:.96rem;border-top:1px dashed rgba(34,48,62,.7);margin-top:0}
.faq-item.open .faq-inner{padding-top:1rem}
.faq-foot{margin-top:2rem;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:.6rem;color:var(--text3);font-size:.95rem;text-align:center}
.faq-foot a{color:var(--green);font-weight:600}
.faq-foot a:hover{text-decoration:underline}

/* related links */
.related-section{background:var(--bg2);border-top:1px solid rgba(34,48,62,.5)}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.related-card{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;position:relative;transition:transform .3s,border-color .3s;box-shadow:var(--shadow)}
.related-card:hover{border-color:var(--line-hi);transform:translateY(-3px)}
.related-thumb{height:170px;overflow:hidden;position:relative;background:#0e141b}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-thumb:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(8,11,14,.85) 100%)}
.related-body{padding:1.4rem 1.6rem 1.6rem;display:flex;flex-direction:column;flex:1;gap:.55rem}
.related-tag{align-self:flex-start;font-size:.76rem;letter-spacing:.08em;color:var(--green);border:1px solid rgba(155,255,46,.35);background:rgba(155,255,46,.08);padding:.18rem .65rem;border-radius:4px}
.related-tag.cyan{color:var(--cyan);border-color:rgba(36,211,193,.35);background:rgba(36,211,193,.07)}
.related-body h3{font-size:1.18rem;line-height:1.35}
.related-body p{color:var(--text2);font-size:.93rem;max-width:44ch}
.text-link{display:inline-flex;align-items:center;gap:.45rem;color:var(--text);font-weight:600;font-size:.92rem;margin-top:.5rem;transition:color .2s,gap .2s}
.text-link:hover{color:var(--green);gap:.7rem}
.text-link i{font-size:.8rem}

/* support bar */
.support-bar{border-top:1px solid rgba(155,255,46,.25);background:linear-gradient(90deg,#0b120a,#101b0f 45%,#0a1510)}

/* footer */
.site-footer{background:#0a0e13;border-top:1px solid rgba(155,255,46,.24)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:3.5rem;padding-top:4.5rem;padding-bottom:3rem}
.footer-brand .brand{margin-bottom:1rem}
.footer-about{color:var(--text2);font-size:.95rem;line-height:1.9;max-width:46ch;margin-top:1.2rem}
.footer-col-title{font-size:.85rem;letter-spacing:.16em;text-transform:uppercase;color:var(--text);margin-bottom:1.15rem;padding-bottom:.6rem;border-bottom:1px solid rgba(34,48,62,.8);display:flex;align-items:center;gap:.5rem}
.footer-col-title:before{content:"";width:6px;height:6px;background:var(--green);transform:skewX(-14deg)}
.footer-col ul li{margin-bottom:.7rem}
.footer-col ul li a{color:var(--text2);font-size:.95rem;display:flex;justify-content:space-between;align-items:center;transition:color .2s,padding-left .2s}
.footer-col ul li a:hover{color:var(--green);padding-left:4px}
.footer-col ul li a i{font-size:.72rem;color:var(--text3);transition:color .2s}
.footer-col ul li a:hover i{color:var(--green)}
.footer-support li{color:var(--text2);font-size:.95rem;display:flex;align-items:center;gap:.6rem}
.footer-support li i{color:var(--cyan);width:18px;text-align:center;font-size:.85rem}
.footer-support a{margin-top:.6rem}
.footer-bottom{border-top:1px solid rgba(34,48,62,.6);padding:1.15rem 0}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.footer-bottom p{color:var(--text3);font-size:.85rem}
.footer-bottom .domain{font-family:"Bahnschrift","DIN Alternate",sans-serif;color:#6f849d;letter-spacing:.05em}

/* fake legacy no old template lines */
@keyframes pushArrow{
  0%,100%{transform:translateX(-3px);opacity:.6}
  50%{transform:translateX(3px);opacity:1}
}

/* responsiveness */
@media (max-width:1190px){
  :root{--pad:3rem}
  .container{padding-left:2rem;padding-right:2rem}
  .section-pad{padding:76px 0}
}
@media (max-width:989px){
  .steps-belt{flex-direction:column}
  .step-arrow{width:100%;height:42px;border-left:0;border-right:0;border-top:1px solid rgba(34,48,62,.7);border-bottom:1px solid rgba(34,48,62,.7)}
  .step-arrow i{transform:rotate(90deg)}
  .step-arrow i{animation:none}
}
@media (max-width:767px){
  .site-header{height:60px}
  .header-inner{height:60px}
  .site-header{background:rgba(8,11,14,.98)}
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .nav-login-mobile{display:flex;margin-top:1.2rem}
  .site-nav{position:fixed;top:60px;right:-300px;width:294px;height:calc(100vh - 60px);background:rgba(10,14,20,.99);backdrop-filter:blur(14px);flex-direction:column;align-items:stretch;gap:0;padding:1.5rem 1.6rem 2rem;border-left:1px solid var(--line);transition:right .32s ease;overflow-y:auto}
  .site-nav.open{right:0}
  .nav-link{padding:1.05rem .25rem;border-bottom:1px solid rgba(34,48,62,.6);font-size:1rem;color:var(--text)}
  .nav-link:after{display:none}
  .nav-link.active{color:var(--green);padding-left:.6rem;border-left:3px solid var(--green);text-shadow:0 0 12px rgba(155,255,46,.45);border-bottom-color:transparent}
  .nav-link:hover{color:var(--green)}
  .btn-primary.nav-login-mobile{justify-content:center;border-radius:6px}
  .cat-hero{padding:64px 0 58px}
  .cat-hero h1{font-size:clamp(1.8rem,6.4vw,2.8rem)}
  .section-pad{padding:58px 0}
  .check-grid,.device-grid,.related-grid{grid-template-columns:1fr}
  .device-thumb{padding-top:62%}
  .security-box{grid-template-columns:1fr;padding:1.8rem 1.4rem}
  .footer-grid{grid-template-columns:1fr;gap:2.2rem;padding-top:3rem}
  .footer-bottom .container{justify-content:center;text-align:center}
  .faq-q{font-size:.98rem;padding:.85rem 1.2rem}
  .faq-inner{padding:0 1.2rem 1.2rem}
  .faq-item.open .faq-inner{padding-top:.9rem}
  .cat-hero-actions .btn{width:auto}
}
@media (max-width:520px){
  .container{padding-left:1rem;padding-right:1rem}
  .cat-hero-actions .btn{width:100%}
  .check-card{padding:1.5rem 1.2rem}
  .device-info{padding:1.15rem 1.2rem 1.4rem}
  .related-body{padding:1.15rem 1.2rem 1.3rem}
  .step-item{padding:1.8rem 1.3rem}
  .security-box{padding:1.6rem 1.2rem}
  .security-box h2{font-size:1.35rem}
  .btn{font-size:.92rem;padding:.6rem 1.1rem}
}