/* roulang page: index */
:root{
  --void:#06090d;
  --base:#0b111a;
  --surface:#111b27;
  --raised:#172331;
  --line:#253342;
  --line-soft:rgba(226,242,255,.08);
  --text-title:#f0f3f6;
  --text-body:#bdc7d1;
  --text-muted:#7e8a9a;
  --gold:#d5a45b;
  --gold-light:#eec487;
  --cyan-dim:#7cc8c1;
  --danger:#d2766d;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-card:0 18px 46px rgba(0,0,0,.28);
  --shadow-gold:0 0 0 4px rgba(213,164,91,.15);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--void);color:var(--text-body);font-family:var(--font-sans);font-size:16px;line-height:1.75;overflow-x:hidden;background-image:radial-gradient(1px 1px at 14% 22%,rgba(226,242,255,.18),transparent 100%),radial-gradient(1px 1px at 72% 12%,rgba(226,242,255,.12),transparent 100%),radial-gradient(1px 1px at 38% 42%,rgba(226,242,255,.1),transparent 100%),radial-gradient(1.5px 1px at 91% 68%,rgba(238,196,135,.12),transparent 100%),radial-gradient(1px 1px at 18% 88%,rgba(226,242,255,.14),transparent 100%);}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(60% 50% at 15% 10%,rgba(76,110,150,.14),transparent 70%),radial-gradient(50% 40% at 85% 85%,rgba(213,164,91,.08),transparent 70%);}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;color:var(--text-title);font-weight:700;line-height:1.3;}
p{margin:0 0 1em;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul,ol{padding-left:1.2em;}
button{font-family:inherit;cursor:pointer;background:none;border:0;color:inherit;padding:0;}
.container{width:min(1180px,92%);margin-left:auto;margin-right:auto;}
.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.section{padding:104px 0;position:relative;background:var(--base);}
.section--raised{background:var(--void);}
.section-head{max-width:760px;margin-bottom:44px;position:relative;z-index:2;}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;color:var(--gold-light);text-transform:uppercase;margin-bottom:14px;}
.section-eyebrow::before{content:"";width:24px;height:1px;background:var(--gold);}
.section-head h2{font-size:clamp(28px,3.4vw,40px);margin-bottom:14px;}
.section-head .section-desc{font-size:16px;color:var(--text-body);max-width:640px;margin:0;}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:10px 26px;border-radius:999px;font-size:15px;font-weight:600;line-height:1.2;transition:background .22s,color .22s,border .22s,box-shadow .22s,transform .15s;border:1px solid transparent;}
.btn svg{width:15px;height:15px;flex:none;}
.btn--primary{background:linear-gradient(135deg,var(--gold-light) 0%,var(--gold) 100%);color:#14120c;border-color:rgba(238,196,135,.8);}
.btn--primary:hover{background:linear-gradient(135deg,#f7d295,#d8a85f);box-shadow:0 8px 26px rgba(213,164,91,.28);}
.btn--primary:active{transform:translateY(1px);box-shadow:none;}
.btn--outline{border-color:rgba(213,164,91,.56);color:var(--gold-light);background:transparent;}
.btn--outline:hover{background:rgba(213,164,91,.12);border-color:var(--gold-light);}
.btn--outline:active{transform:translateY(1px);}
.btn:focus-visible{outline:none;box-shadow:var(--shadow-gold),0 0 0 2px var(--gold);}
.btn--ghost{color:var(--text-body);border-color:var(--line);background:rgba(255,255,255,.02);}
.btn--ghost:hover{color:var(--text-title);border-color:var(--line);background:rgba(255,255,255,.05);}
.btn--lg{min-height:56px;padding:14px 38px;font-size:16px;}
.btn--sm{min-height:34px;padding:6px 16px;font-size:13px;}

/* Tags */
.tag,span.clr-tag{display:inline-flex;align-items:center;gap:6px;min-height:26px;padding:4px 12px;border-radius:999px;background:rgba(6,9,14,.6);border:1px solid var(--line);font-size:12px;letter-spacing:.04em;color:var(--cyan-dim);white-space:nowrap;}
.tag--gold{color:var(--gold-light);border-color:rgba(213,164,91,.35);background:rgba(213,164,91,.1);}
.tag--danger{color:#eaa49e;border-color:rgba(210,118,109,.35);background:rgba(210,118,109,.08);}
.tag--dark{color:var(--text-body);background:rgba(0,0,0,.4);border-color:transparent;}

/* Header */
.site-header{position:sticky;top:0;z-index:120;background:rgba(6,9,14,.78);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line-soft);}
.navbar{display:flex;align-items:center;justify-content:space-between;height:84px;gap:16px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex:none;}
.brand__mark{width:42px;height:42px;color:var(--gold-light);filter:drop-shadow(0 0 8px rgba(213,164,91,.2));}
.brand__text{display:flex;flex-direction:column;line-height:1.15;color:var(--text-title);font-size:18px;font-weight:800;letter-spacing:.01em;}
.brand__text small{font-size:11px;font-weight:400;color:var(--text-muted);letter-spacing:.14em;margin-top:4px;}
.brand__text .accent{color:var(--gold-light);}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{display:inline-flex;align-items:center;gap:7px;padding:11px 15px;font-size:15px;color:var(--text-body);border-radius:999px;transition:color .2s,background .2s;}
.nav-link:hover{color:var(--text-title);background:rgba(255,255,255,.04);}
.nav-link.is-active{color:var(--gold-light);background:rgba(213,164,91,.08);font-weight:600;}
.nav-link.is-active::before{content:"✦";font-size:11px;color:var(--gold);}
.nav-cta{margin-left:12px;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text-title);}
.nav-toggle svg{width:20px;height:20px;}
.nav-toggle:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}
.nav-veil{display:none;}
@media (max-width:1060px){
  .nav-toggle{display:inline-flex;}
  .main-nav{position:fixed;top:0;right:0;bottom:0;width:min(400px,88vw);background:linear-gradient(180deg,#0d131c,#090d13);border-left:1px solid var(--line);flex-direction:column;align-items:stretch;justify-content:flex-start;gap:8px;padding:96px 26px 28px;transform:translateX(104%);transition:transform .32s cubic-bezier(.22,.68,0,1);box-shadow:-26px 0 60px rgba(0,0,0,.42);overflow-y:auto;z-index:140;}
  .main-nav .nav-link{font-size:18px;padding:14px 18px;border-radius:12px;}
  .nav-cta{margin:14px 0 0;justify-content:center;min-height:52px;}
  .main-nav.is-open{transform:translateX(0);}
  .nav-veil.is-open{display:block;position:fixed;inset:0;z-index:130;background:rgba(3,5,8,.62);backdrop-filter:blur(5px);}
}

/* Hero */
.hero{position:relative;min-height:calc(100vh - 84px);display:flex;align-items:center;padding:100px 0;background:linear-gradient(100deg,rgba(6,9,14,.96) 0%,rgba(6,9,14,.6) 55%,rgba(6,9,14,.38) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;overflow:hidden;}
.hero__content{position:relative;z-index:2;max-width:830px;}
.hero__eyebrow{display:inline-flex;flex-wrap:wrap;gap:10px;align-items:center;background:rgba(11,17,26,.68);border:1px solid rgba(213,164,91,.4);border-radius:999px;padding:8px 20px;font-size:13px;color:var(--gold-light);letter-spacing:.1em;}
.hero__eyebrow em{font-style:normal;color:var(--text-title);}
.hero__title{font-size:clamp(34px,6.2vw,68px);font-weight:800;letter-spacing:-.02em;line-height:1.12;margin:28px 0 24px;color:#fff;}
.hero__title span{display:block;color:var(--gold-light);}
.hero__lead{font-size:clamp(16px,1.6vw,19px);line-height:1.85;color:var(--text-body);max-width:620px;margin:0 0 36px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-bottom:42px;}
.hero__hint{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-muted);}
.hero__hint .dot{width:6px;height:6px;border-radius:50%;background:var(--gold-light);box-shadow:0 0 0 4px rgba(213,164,91,.15);}
.hero__stars{position:absolute;inset:0;z-index:1;pointer-events:none;}
.hero__stars .star{position:absolute;border-radius:50%;background:#fff;animation:twinkle 3.6s infinite alternate;}
@keyframes twinkle{0%{opacity:.2}100%{opacity:.9}}

/* Quick check strip */
.quickcheck{background:var(--void);padding:76px 0 40px;}
.steps-band{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);}
.step-card{display:flex;gap:18px;align-items:flex-start;background:var(--surface);padding:30px 28px;transition:background .25s,transform .25s;}
.step-card:hover{background:var(--raised);}
.step-card__num{font-size:28px;font-weight:800;color:var(--gold);font-style:normal;line-height:1;font-family:Georgia,"Times New Roman",serif;opacity:.85;}
.step-card h3{font-size:17px;margin-bottom:7px;}
.step-card p{font-size:14px;color:var(--text-muted);margin:0;}
.step-card .url-code{color:var(--gold-light);font-weight:600;letter-spacing:.02em;}
@media(max-width:820px){.steps-band{grid-template-columns:1fr;padding:0;}}

/* Rail slider */
.slider-zone{background:var(--base);}
.rail-scroll{display:flex;gap:20px;overflow-x:auto;padding:12px 4px 32px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;}
.rail-scroll::-webkit-scrollbar{height:8px;}
.rail-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px;}
.rail-scroll::-webkit-scrollbar-track{background:transparent;}
.rail-card{flex:0 0 auto;width:280px;scroll-snap-align:start;position:relative;border-radius:var(--radius-lg);overflow:hidden;display:block;background:var(--surface);border:1px solid var(--line);transition:transform .28s,border .28s,box-shadow .28s;}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(213,164,91,.5);box-shadow:var(--shadow-card);}
.rail-card__media{position:relative;aspect-ratio:3/3.5;overflow:hidden;background:#0a0f15;}
.rail-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.3,1);}
.rail-card:hover img{transform:scale(1.05);}
.rail-card__cover{position:absolute;inset:0;background:linear-gradient(180deg,transparent 25%,rgba(5,8,12,.6) 62%,rgba(4,7,11,.92) 100%);}
.rail-card__tag{position:absolute;top:14px;left:14px;z-index:2;}
.rail-card__body{position:absolute;left:0;bottom:0;right:0;padding:16px 18px 18px;z-index:2;color:#e9edf1;}
.rail-card__body .rail-title{display:block;font-size:21px;font-weight:700;color:#fff;margin-bottom:6px;}
.rail-card__body .rail-desc{display:block;font-size:13px;line-height:1.6;color:rgba(226,238,248,.8);margin-bottom:12px;}
.text-arrow{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--gold-light);}
.text-arrow:hover{color:#fff;}

/* Hot area */
.hot-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:stretch;}
.hot-feature{position:relative;min-height:500px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);display:flex;align-items:flex-end;background:url('/assets/images/coverpic/cover-1.png') center/cover no-repeat;}
.hot-feature::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,12,.1) 30%,rgba(5,8,12,.78) 74%,rgba(5,8,12,.95) 100%);}
.hot-feature__content{position:relative;z-index:2;padding:36px;}
.hot-feature h3{color:#fff;font-size:30px;max-width:460px;margin-bottom:12px;}
.hot-feature p{color:rgba(220,230,240,.86);max-width:430px;margin-bottom:22px;font-size:15px;}
.hot-rank{list-style:none;padding:0;margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;}
.hot-rank__item{display:flex;align-items:center;gap:16px;padding:16px 22px;border-bottom:1px solid var(--line-soft);transition:background .2s;}
.hot-rank__item:last-child{border-bottom:none;}
.hot-rank__item:hover{background:var(--raised);}
.hot-rank__item .rank-no{width:28px;font-family:Georgia,serif;font-size:20px;font-weight:700;color:var(--gold);opacity:.85;flex:none;}
.hot-rank__item:nth-child(2) .rank-no{color:var(--text-muted);}
.hot-rank__item .rank-main{flex:1;min-width:0;}
.hot-rank__item .rank-main strong{display:block;color:var(--text-title);font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:2px;}
.hot-rank__item .rank-main small{color:var(--text-muted);font-size:12px;}
.hot-rank__item .rank-cat{flex:none;color:var(--gold-light);font-size:12px;border:1px solid rgba(213,164,91,.3);padding:3px 10px;border-radius:99px;background:rgba(213,164,91,.05);}
.hot-rank__item .rank-arrow{flex:none;color:var(--text-muted);}
.hot-rank__item:hover .rank-arrow{color:var(--gold-light);transform:translateX(3px);transition:transform .2s;}
@media(max-width:920px){.hot-grid{grid-template-columns:1fr;}.hot-feature{min-height:360px;}}

/* Dynamic feed */
.feed{background:var(--base);position:relative;overflow:hidden;}
.feed-bg{position:absolute;inset:0;pointer-events:none;background:radial-gradient(50% 40% at 90% 5%,rgba(213,164,91,.06),transparent 70%);}
.feed-filters{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:38px;}
.feed-filter{display:inline-flex;align-items:center;min-height:38px;padding:7px 20px;border:1px solid var(--line);border-radius:999px;color:var(--text-body);font-size:14px;transition:all .2s;}
.feed-filter:hover{color:var(--gold-light);border-color:rgba(213,164,91,.5);}
.feed-filter.is-active,span.clr-filter--active{color:#101010;background:linear-gradient(135deg,var(--gold-light),var(--gold));border-color:transparent;font-weight:600;}
.feed-stack{position:relative;z-index:1;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;}
.feed-feature{display:grid;grid-template-columns:340px 1fr;gap:0;}
.feed-feature__thumb{position:relative;min-height:300px;overflow:hidden;}
.feed-feature__thumb img{position:absolute;inset:0;height:100%;width:100%;object-fit:cover;}
.feed-feature__thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 40%,rgba(17,27,39,1));}
.feed-feature__main{padding:32px 38px;display:flex;flex-direction:column;justify-content:center;gap:10px;}
.feed-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;color:var(--text-muted);font-size:13px;}
.feed-meta time{color:var(--cyan-dim);}
.feed-feature__main h3{font-size:clamp(19px,2.2vw,27px);color:var(--text-title);}
.feed-feature__excerpt{color:var(--text-muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.8;}
.feed-list li{display:flex;align-items:center;gap:14px;padding:17px 34px 17px 26px;border-top:1px solid var(--line-soft);transition:background .2s;}
.feed-list li:hover{background:var(--raised);}
.feed-list .feed-info{flex:1;min-width:0;display:flex;align-items:center;gap:16px;}
.feed-list .feed-title{flex:1;min-width:0;color:var(--text-title);font-size:15px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.feed-list .feed-desc{display:block;color:var(--text-muted);font-size:13px;line-height:1.5;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:560px;}
.feed-list .feed-date{color:var(--text-muted);font-size:13px;white-space:nowrap;flex:none;}
.feed-list .feed-date i{color:var(--cyan-dim);font-style:normal;}
.feed-list .go{margin-left:auto;color:var(--gold-light);font-size:15px;flex:none;padding:3px 8px;border-radius:6px;transition:all .2s;}
.feed-list li:hover .go{background:rgba(213,164,91,.1);}
.feed-empty{padding:70px 20px;text-align:center;color:var(--text-muted);position:relative;z-index:1;}
.feed-empty svg{width:38px;height:38px;margin:0 auto 18px;color:var(--gold);}
.feed-empty p{font-size:16px;margin-bottom:22px;}
@media(max-width:900px){.feed-feature{grid-template-columns:1fr;}.feed-feature__thumb{min-height:220px;}.feed-feature__thumb::after{background:linear-gradient(180deg,transparent 40%,rgba(17,27,39,1));}.feed-list .feed-desc{display:none;}.feed-list .feed-title{white-space:normal;}}

/* FAQ */
.faq{background:var(--void);}
.faq-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:54px;}
.faq-side .help-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 30px;margin-top:0;}
.faq-side .help-card h3{font-size:21px;color:var(--text-title);}
.faq-side .help-card p{font-size:14px;color:var(--text-muted);}
.accordion-list{border-top:1px solid var(--line-soft);}
.accordion-item{border-bottom:1px solid var(--line-soft);}
.accordion-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:24px 4px;text-align:left;color:var(--text-title);}
.accordion-trigger .at{font-size:17px;font-weight:600;flex:1;line-height:1.6;}
.accordion-trigger .ico{flex:none;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);position:relative;transition:border .25s,transform .25s;background:rgba(255,255,255,.02);}
.accordion-trigger .ico::before,.accordion-trigger .ico::after{content:"";position:absolute;top:50%;left:50%;width:11px;height:1.5px;background:var(--gold-light);transform:translate(-50%,-50%);transition:all .25s;}
.accordion-trigger .ico::after{transform:translate(-50%,-50%) rotate(90deg);}
.accordion-item.is-open .accordion-trigger .ico{transform:rotate(45deg);border-color:rgba(213,164,91,.6);}
.accordion-item.is-open .accordion-trigger .ico::after{transform:translate(-50%,-50%) rotate(90deg);}
.accordion-item.is-open .accordion-trigger .ico::before{opacity:0;}
.accordion-trigger:hover .at{color:var(--gold-light);}
.accordion-panel{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.accordion-item.is-open .accordion-panel{max-height:520px;}
.accordion-panel p{margin:0;padding:0 22px 24px 4px;color:var(--text-muted);font-size:14.5px;line-height:1.9;text-align:left;}
@media(max-width:900px){.faq-grid{grid-template-columns:1fr;gap:34px;}.accordion-panel p{padding-bottom:20px;}}

/* CTA */
.cta-block{position:relative;background:linear-gradient(115deg,rgba(6,9,13,.98),rgba(15,23,35,.9)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:96px 0;overflow:hidden;border-top:1px solid var(--line-soft);}
.cta-block .container{position:relative;z-index:2;}
.cta-inner{max-width:800px;margin:0 auto;text-align:center;background:rgba(11,17,26,.55);border:1px solid var(--line-soft);border-radius:28px;padding:60px 34px;backdrop-filter:blur(8px);}
.cta-inner .cta-badge{color:var(--gold-light);font-size:13px;letter-spacing:.12em;margin-bottom:16px;display:inline-flex;align-items:center;gap:9px;}
.cta-inner h2{font-size:clamp(30px,4vw,46px);color:#fff;}
.cta-inner p{font-size:15px;color:var(--text-muted);margin-bottom:30px;}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}
.cta-glow{position:absolute;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(213,164,91,.16),transparent 70%);top:-180px;left:50%;transform:translateX(-50%);pointer-events:none;}

/* Footer */
.site-footer{background:#05070b;border-top:1px solid var(--line);padding:74px 0 0;color:var(--text-muted);font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:46px;}
.footer-brand p{color:var(--text-muted);font-size:13.5px;line-height:1.9;}
.footer-brand .brand{color:var(--text-title);margin-bottom:14px;font-size:17px;font-weight:700;display:inline-flex;}
.footer-title{font-size:15px;font-weight:700;color:var(--text-title);margin-bottom:18px;position:relative;padding-bottom:10px;}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:22px;height:2px;background:var(--gold);border-radius:2px;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{transition:all .2s;}
.footer-links a:hover{color:var(--gold-light);padding-left:4px;}
.footer-tip{border:1px solid rgba(213,164,91,.24);border-radius:12px;padding:16px 18px;background:rgba(213,164,91,.05);font-size:13px;color:var(--text-body);display:flex;gap:11px;}
.footer-tip svg{flex:none;color:var(--gold-light);margin-top:3px;}
.footer-tip strong{color:var(--gold-light);font-weight:600;}
.site-footer .foot-bottom{border-top:1px solid var(--line);padding:23px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;}
.site-footer .foot-bottom a{color:var(--text-muted);}
.site-footer .foot-bottom a:hover{color:var(--gold-light);}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr;}}

/* misc responsive */
@media(max-width:1060px){.navbar{height:74px;}.hero{min-height:auto;padding:80px 0;}}
@media(max-width:760px){.section{padding:60px 0;}.hero{padding:64px 0;}.hero__title{font-size:34px;}.hero__lead{font-size:15px;}.hot-feature h3{font-size:24px;}.feed-feature__main{padding:26px 24px;}.feed-list li{padding:15px 16px;}.feed-list .feed-date{display:none;}.section-head h2{font-size:27px;}}
@media(max-width:520px){.step-card{padding:22px 18px;}.rail-card{width:250px;}.cta-inner{padding:38px 22px;}.btn--lg{width:100%;}.cta-actions .btn--outline{width:100%;}}

/* roulang page: article */
:root{
  --void:#06090d;
  --base:#0b111a;
  --surface:#111b27;
  --raised:#172331;
  --line:#253342;
  --line-soft:rgba(226,242,255,.08);
  --text-title:#f0f3f6;
  --text-body:#bdc7d1;
  --text-muted:#7e8a9a;
  --gold:#d5a45b;
  --gold-light:#eec487;
  --cyan-dim:#7cc8c1;
  --danger:#d2766d;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-gold:0 8px 34px rgba(213,164,91,.18);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{font-size:16px;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--void);
  color:var(--text-body);
  font-family:var(--font-sans);
  line-height:1.75;
  background-image:
    radial-gradient(1px 1px at 12% 18%,rgba(238,196,135,.32),transparent),
    radial-gradient(1px 1px at 32% 8%,rgba(255,255,255,.22),transparent),
    radial-gradient(1px 1px at 48% 24%,rgba(238,196,135,.22),transparent),
    radial-gradient(1px 1px at 71% 16%,rgba(255,255,255,.16),transparent),
    radial-gradient(1px 1px at 84% 10%,rgba(124,200,193,.22),transparent),
    radial-gradient(1px 1px at 66% 32%,rgba(255,255,255,.12),transparent),
    radial-gradient(1px 1px at 22% 42%,rgba(238,196,135,.16),transparent),
    radial-gradient(2px 2px at 92% 52%,rgba(238,196,135,.14),transparent);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
button,input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--gold-light);outline-offset:3px;border-radius:4px;}
.skip-link{
  position:fixed;left:16px;top:-60px;z-index:1000;background:var(--surface);
  color:var(--text-title);padding:10px 20px;border-radius:8px;border:1px solid var(--line);
  transition:top .2s ease;
}
.skip-link:focus{top:16px;color:#fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(6,9,13,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.navbar{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;}
.brand__mark{width:40px;height:40px;flex:0 0 auto;color:var(--gold-light);}
.brand__text{
  color:var(--text-title);font-size:18px;font-weight:700;letter-spacing:.03em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.2;
}
.brand__text small{display:block;font-size:10px;letter-spacing:.34em;font-weight:400;color:var(--text-muted);margin-top:3px;text-transform:uppercase;}
.main-nav{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;color:var(--text-body);font-size:15px;font-weight:500;
  padding:12px 2px;line-height:1;letter-spacing:.02em;
}
.nav-link:hover,.nav-link.is-active{color:var(--gold-light);}
.nav-link.is-active::after{
  content:"✦";
  position:absolute;
  left:50%;bottom:2px;transform:translateX(-50%);
  font-size:11px;color:var(--gold);line-height:1;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  color:var(--text-body);cursor:pointer;transition:all .2s ease;
}
.nav-toggle:hover{color:var(--gold-light);border-color:rgba(213,164,91,.5);}
.nav-toggle svg{width:22px;height:22px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;text-align:center;white-space:nowrap;
  border:1px solid transparent;transition:all .2s cubic-bezier(.2,.7,.3,1);
  gap:8px;
}
.btn--primary{
  background:linear-gradient(135deg,#c69350 0%,var(--gold) 45%,var(--gold-light) 100%);
  color:#1d1506;box-shadow:var(--shadow-gold);
}
.btn--primary:hover{
  background:linear-gradient(135deg,#d8aa63 0%,var(--gold-light) 100%);
  box-shadow:0 10px 42px rgba(213,164,91,.34);
  transform:translateY(-2px);color:#1d1506;
}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 16px rgba(213,164,91,.2);}
.btn--outline{
  background:transparent;border-color:rgba(213,164,91,.55);color:var(--gold);
}
.btn--outline:hover{
  background:rgba(213,164,91,.08);border-color:var(--gold-light);color:var(--gold-light);
  box-shadow:0 4px 22px rgba(213,164,91,.1);
}
.btn--outline:active{transform:translateY(1px);}
.btn:focus-visible{outline:2px solid var(--gold-light);outline-offset:3px;}

nav-cta{margin-left:8px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;line-height:1.4;
  background:rgba(213,164,91,.1);border:1px solid rgba(213,164,91,.2);color:var(--gold-light);
}
.tag--dark{background:rgba(255,255,255,.04);border-color:rgba(226,242,255,.08);color:var(--text-muted);}

.article-banner{
  position:relative;
  padding:72px 0 52px;
  background:linear-gradient(90deg,rgba(6,9,13,.88) 20%,rgba(9,14,20,.66) 60%,rgba(6,9,13,.8) 100%),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line-soft);
}
.article-banner__inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
  font-size:13px;color:var(--text-muted);margin-bottom:20px;
}
.breadcrumb a:hover{color:var(--gold-light);}
.breadcrumb .sep{color:#48566a;opacity:.7;}
.breadcrumb .current{color:var(--text-body);}
.tag-line{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.article-banner h1{
  margin:0 0 18px;max-width:900px;
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;color:var(--text-title);
  font-weight:800;letter-spacing:.01em;
  word-break:break-word;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:14px;color:var(--text-muted);
}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#52627a;}
.meta-row .meta-time{display:inline-flex;align-items:center;gap:6px;}
.meta-row .meta-cat{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--cyan-dim);border:1px solid rgba(124,200,193,.22);
  background:rgba(124,200,193,.06);
  padding:2px 10px;border-radius:999px;font-size:13px;
}
.meta-row .meta-cat:hover{color:#9cdbd5;border-color:rgba(124,200,193,.5);}

.article-main{padding:46px 0 18px;background:linear-gradient(180deg,rgba(6,9,13,.2),transparent 220px);}
.article-shell{max-width:880px;}
.article-card{
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  padding:clamp(22px,5vw,50px);
  box-shadow:0 24px 80px rgba(0,0,0,.22);
}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--text-body);
  word-wrap:break-word;
}
.article-body>*:first-child{margin-top:0;}
.article-body>*:last-child{margin-bottom:0;}
.article-body p{margin:0 0 1.35em;}
.article-body h2,.article-body h3,.article-body h4{
  color:var(--text-title);font-weight:700;line-height:1.35;margin:1.8em 0 .7em;letter-spacing:.01em;
}
.article-body h2{font-size:24px;padding-left:14px;border-left:3px solid var(--gold);}
.article-body h3{font-size:19px;}
.article-body h4{font-size:17px;}
.article-body a{color:var(--gold);border-bottom:1px solid rgba(213,164,91,.35);}
.article-body a:hover{color:var(--gold-light);border-color:var(--gold-light);}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em;}
.article-body li{margin-bottom:.4em;}
.article-body img{border-radius:14px;border:1px solid var(--line-soft);}
.article-body blockquote{
  margin:1.6em 0;padding:16px 24px;border-left:3px solid var(--gold);
  background:rgba(255,255,255,.03);border-radius:0 12px 12px 0;
  color:var(--text-title);font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--text-muted);text-align:center;margin-top:.6em;}
.article-body pre{
  background:var(--void);border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;overflow-x:auto;margin:1.4em 0;
}
.article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-size:.92em;
  background:rgba(255,255,255,.06);border-radius:6px;padding:.1em .4em;
  color:var(--gold-light);
}
.article-body pre code{background:transparent;padding:0;color:#c9d4df;}
.article-body hr{border:none;border-top:1px solid var(--line-soft);margin:2em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.4em;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--raised);color:var(--text-title);}

.empty-state{
  text-align:center;padding:42px 16px 20px;color:var(--text-muted);
}
.empty-state .empty-icon{
  width:72px;height:72px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--raised);border:1px solid var(--line);
  color:var(--gold);
}
.empty-state h2{color:var(--text-title);font-size:24px;margin:0 0 10px;}
.empty-state p{margin:0 0 24px;font-size:15px;max-width:520px;margin-left:auto;margin-right:auto;}

.article-footer-note{
  margin:30px 0 0;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
}
.article-footer-note span{font-size:13px;color:var(--text-muted);}

.related-zone{padding:30px 0 36px;}
.related-head{
  display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:12px;
  margin-bottom:24px;
}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;
  color:var(--gold);text-transform:uppercase;margin-bottom:8px;
}
.section-title{color:var(--text-title);font-size:clamp(23px,3vw,32px);margin:0;font-weight:800;letter-spacing:.01em;}
.related-panel{
  background:var(--raised);border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);overflow:hidden;
}
.related-visual{position:relative;min-height:260px;background:var(--surface);}
.related-visual img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
}
.related-visual .related-visual__mask{
  position:absolute;inset:0;background:linear-gradient(200deg,rgba(6,9,13,.15) 0%,rgba(6,9,13,.86) 100%);
}
.related-visual__tag{
  position:absolute;left:18px;bottom:16px;color:#fff;font-weight:700;font-size:20px;line-height:1.35;z-index:2;
  max-width:240px;
}
.related-links{padding:30px 30px 26px;}
.related-links h3{color:var(--text-title);font-size:20px;margin:0 0 14px;}
.related-item{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 0;border-bottom:1px solid var(--line-soft);
  transition:padding .2s ease;
}
.related-item:first-of-type{padding-top:8px;}
.related-item:last-of-type{border-bottom:none;}
.related-item:hover{padding-left:10px;}
.related-item__media{flex:0 0 auto;color:var(--gold);}
.related-item__title{flex:1 1 auto;color:var(--text-title);font-weight:600;font-size:15px;}
.related-item__meta{flex:0 0 auto;font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:8px;}
.related-item__arrow{
  width:30px;height:30px;border-radius:50%;background:rgba(213,164,91,.08);
  display:flex;align-items:center;justify-content:center;color:var(--gold);
  flex:0 0 auto;
}
.related-item:hover .related-item__arrow{background:rgba(213,164,91,.2);}

.security-tip-zone{padding:6px 0 30px;}
.security-tip{
  display:flex;align-items:flex-start;gap:14px;padding:18px 22px;
  background:rgba(210,118,109,.05);
  border:1px solid rgba(210,118,109,.22);
  border-radius:var(--radius-md);
  color:var(--text-body);font-size:14px;
}
.security-tip svg{flex:0 0 auto;margin-top:4px;color:var(--danger);}
.security-tip strong{color:var(--text-title);}
.security-tip code{
  background:rgba(255,255,255,.06);padding:.1em .5em;border-radius:6px;
  color:var(--gold-light);font-size:.95em;
}

.cta-band{padding:40px 0 70px;}
.cta-card{
  position:relative;overflow:hidden;
  background:linear-gradient(105deg,rgba(6,9,13,.9) 0%,rgba(11,17,26,.85) 55%,rgba(23,35,49,.9) 100%),url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border:1px solid var(--line-soft);border-radius:24px;
  padding:48px clamp(24px,5vw,62px);
  display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;
}
.cta-card::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,#c69350,var(--gold-light));
}
.cta-text{flex:1 1 360px;}
.cta-text h2{color:var(--text-title);font-size:clamp(25px,3.4vw,38px);line-height:1.3;margin:0 0 12px;font-weight:800;}
.cta-text p{margin:0;font-size:15px;color:var(--text-muted);max-width:620px;}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;flex:0 0 auto;}

.site-footer{
  background:#070c12;border-top:1px solid var(--line-soft);
  padding:60px 0 28px;position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:10%;right:10%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(213,164,91,.6),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:34px;
  margin-bottom:38px;
}
.footer-brand p{margin:16px 0;font-size:14px;color:var(--text-muted);line-height:1.8;}
.footer-title{
  color:var(--text-title);font-size:16px;font-weight:700;
  margin:0 0 16px;padding-bottom:12px;position:relative;
}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--gold);}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-links a{ color:var(--text-muted);font-size:14px;display:inline-flex;align-items:center;gap:8px; }
.footer-links a:hover{color:var(--gold-light);}
.footer-links a::before{content:"›";color:var(--gold);opacity:.7;font-size:16px;line-height:1;}
.footer-tip{
  display:flex;align-items:flex-start;gap:10px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(226,242,255,.08);border-radius:12px;
  color:var(--text-muted);font-size:13px;padding:14px;
  line-height:1.7;
}
.footer-tip svg{flex:0 0 auto;color:var(--gold);margin-top:2px;}
.footer-tip strong{color:var(--text-title);}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid var(--line-soft);padding-top:24px;
  font-size:13px;color:#5f6c7d;flex-wrap:wrap;
}
.foot-bottom a{color:#5f6c7d;}
.foot-bottom a:hover{color:var(--gold-light);}

@media(max-width:1023px){
  .main-nav{
    position:fixed;top:84px;left:16px;right:16px;z-index:180;
    background:rgba(10,15,22,.96);backdrop-filter:blur(16px);
    border:1px solid var(--line-soft);border-radius:16px;
    box-shadow:0 30px 80px rgba(0,0,0,.5);
    padding:22px 24px;
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    opacity:0;pointer-events:none;transform:translateY(-14px);
    transition:opacity .2s ease,transform .2s ease;
  }
  .main-nav.is-open{opacity:1;pointer-events:auto;transform:translateY(0);}
  .nav-link{
    padding:13px 4px;display:flex;align-items:center;font-size:16px;
    border-bottom:1px solid rgba(226,242,255,.05);
  }
  .nav-link.is-active::after{content:"·";left:auto;right:-10px;top:50%;bottom:auto;transform:translateY(-50%);font-size:20px;}
  .nav-toggle{
    display:inline-flex;
  }
  .nav-cta{
    width:100%;justify-content:center;margin-top:12px;
  }
  .article-banner{padding:52px 0 38px;}
  .cta-card{padding:34px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}

@media(max-width:767px){
  .article-card{padding:22px 18px;}
  .article-body{font-size:16px;line-height:1.85;}
  .related-links{padding:22px 18px;}
  .related-visual{min-height:200px;}
  .security-tip{padding:15px 16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .navbar{min-height:66px;}
  .brand__mark{width:36px;height:36px;}
}

@media(max-width:520px){
  .brand__text{font-size:16px;}
  .brand__text small{letter-spacing:.2em;}
  .container{padding:0 18px;}
  .article-banner h1{font-size:26px;}
  .meta-row{font-size:13px;}
  .related-panel .related-item{flex-wrap:wrap;}
}

/* roulang page: category1 */
:root {
  --void: #06090d;
  --base: #0b111a;
  --surface: #111b27;
  --raised: #172331;
  --line: #253342;
  --line-soft: rgba(226,242,255,.08);
  --text-title: #f0f3f6;
  --text-body: #bdc7d1;
  --text-muted: #7e8a9a;
  --gold: #d5a45b;
  --gold-light: #eec487;
  --cyan-dim: #7cc8c1;
  --danger: #d2766d;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --transition: 200ms ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background-color: var(--void);
  background-image:
    radial-gradient(circle at 15% 15%, rgba(213,164,91,.06), transparent 20%),
    radial-gradient(circle at 85% 75%, rgba(124,200,193,.04), transparent 16%),
    radial-gradient(rgba(255,255,255,.02) 1px, transparent 1.3px);
  background-size: auto, auto, 220px 220px;
  background-repeat: no-repeat, no-repeat, repeat;
  color: var(--text-body);
  font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4,h5,h6 { font-family: inherit; color: var(--text-title); margin: 0; line-height: 1.3; }
h1 { font-size: clamp(34px, 5vw, 62px); font-weight: 800; letter-spacing: -.01em; }
h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 800; letter-spacing: -.01em; margin-bottom: 16px; }
h3 { font-size: 20px; font-weight: 700; }
h4 { font-size: 16px; font-weight: 700; }
p { margin: 0 0 14px; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition); }
ul,ol { margin: 0; padding: 0; }
li { list-style: none; }
button { font-family: inherit; cursor: pointer; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid rgba(238,196,135,.75);
  outline-offset: 3px;
  border-radius: 8px;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.row {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
.row .columns { padding-left: 16px; padding-right: 16px; }
.section { padding: clamp(56px, 8vw, 108px) 0; position: relative; }
.section--dim {
  background: rgba(255,255,255,.012);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--gold);
  display: block;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(213,164,91,.14);
}
.section-summary {
  max-width: 680px;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.85;
  margin-top: 6px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(9,14,20,.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-soft);
}
.navbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 1 auto;
  min-width: 0;
}
.brand__mark { width: 44px; height: 44px; color: var(--gold); flex: 0 0 auto; filter: drop-shadow(0 0 9px rgba(213,164,91,.26)); }
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.12;
  font-size: 17px;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: .02em;
  white-space: nowrap;
}
.brand__text small {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--text-muted);
  margin-top: 4px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  position: relative;
  padding: 9px 14px;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--text-title);
  background: rgba(255,255,255,.035);
}
.nav-link.is-active {
  color: var(--gold-light);
  font-weight: 600;
}
.nav-link.is-active::before {
  content: "";
  position: absolute;
  top: 1px;
  left: 50%;
  transform: translateX(-50%);
  width: 5px;
  height: 5px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--gold);
}
.nav-cta { margin-left: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn--lg { min-height: 52px; padding: 0 30px; font-size: 16px; }
.btn--primary {
  color: #15100a;
  background: linear-gradient(135deg, var(--gold), var(--gold-light) 55%, var(--gold));
  box-shadow: 0 0 0 0 rgba(213,164,91,0);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(213,164,91,.28);
}
.btn--primary:active { transform: translateY(0); }
.btn--ghost {
  color: var(--gold-light);
  background: rgba(213,164,91,.06);
  border-color: rgba(213,164,91,.42);
}
.btn--ghost:hover {
  background: rgba(213,164,91,.13);
  border-color: rgba(238,196,135,.7);
  color: var(--gold-light);
}
.btn svg { width: 16px; height: 16px; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(255,255,255,.045);
  border: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
}
.tag--gold {
  color: var(--gold-light);
  border-color: rgba(213,164,91,.34);
  background: rgba(213,164,91,.07);
}
.tag--dark {
  background: rgba(255,255,255,.04);
  border-color: rgba(224,231,238,.12);
  color: var(--text-body);
}

.page-banner {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  padding: 96px 0 104px;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
}
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,9,13,.95) 0%, rgba(8,13,20,.82) 38%, rgba(9,14,21,.42) 100%);
}
.page-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 78% 32%, rgba(213,164,91,.16), transparent 30%);
  pointer-events: none;
}
.page-banner__content {
  position: relative;
  z-index: 2;
  width: 100%;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 22px;
}
.breadcrumb a:hover { color: var(--gold-light); }
.bc-sep { opacity: .45; }
.bc-current { color: var(--text-body); }
.banner-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--gold-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.banner-kicker .kicker-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(213,164,91,.16), 0 0 18px var(--gold);
}
.banner-desc {
  max-width: 720px;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.8;
  color: #d6dee7;
  margin: 16px 0 28px;
}
.banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.section--guide {
  background: linear-gradient(180deg, rgba(17,27,39,.35), rgba(6,9,13,0));
  border-bottom: 1px solid var(--line-soft);
}
.guide-grid { align-items: flex-start; }
.guide-main,
.guide-aside { margin-top: 24px; }
.guide-heading h2 { margin-bottom: 12px; }
.step-router { margin: 38px 0 16px; }
.step-item {
  position: relative;
  padding: 0 0 42px 74px;
}
.step-item:last-child { padding-bottom: 0; }
.step-item::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 56px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(to bottom, rgba(213,164,91,.46), rgba(213,164,91,.03));
}
.step-item:last-child::before { display: none; }
.step-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 49px;
  height: 49px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--raised);
  border: 1px solid rgba(213,164,91,.32);
  color: var(--gold);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .02em;
  box-shadow: 0 0 0 5px rgba(11,17,26,.82), 0 0 0 6px rgba(213,164,91,.06);
}
.step-card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 24px 26px 22px;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.step-card:hover {
  transform: translateY(-3px);
  border-color: rgba(213,164,91,.38);
  background: rgba(23,35,49,.86);
}
.step-card h3 {
  font-size: 19px;
  color: var(--text-title);
  margin-bottom: 8px;
}
.step-card p {
  margin: 0;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.85;
}
.step-card .tag { margin-top: 16px; }
.guide-callout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 28px 0 0 74px;
  padding: 16px 18px;
  border-left: 2px solid var(--gold);
  border-radius: 0 12px 12px 0;
  background: rgba(213,164,91,.05);
  color: var(--text-body);
}
.guide-callout svg { flex: 0 0 auto; width: 20px; height: 20px; color: var(--gold); margin-top: 3px; }
.guide-callout p { margin: 0; font-size: 14px; line-height: 1.8; }

.aside-sticky {
  position: sticky;
  top: 100px;
  display: grid;
  gap: 14px;
}
.help-card {
  position: relative;
  overflow: hidden;
  padding: 30px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(213,164,91,.12), rgba(17,27,39,.65)), var(--surface);
  border: 1px solid rgba(213,164,91,.32);
}
.help-card::before {
  content: "";
  position: absolute;
  right: -54px;
  top: -44px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  border: 1px solid rgba(213,164,91,.2);
  box-shadow: 0 0 0 24px rgba(213,164,91,.04);
  pointer-events: none;
}
.help-card > * { position: relative; z-index: 1; }
.help-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(213,164,91,.14);
  border: 1px solid rgba(213,164,91,.36);
  color: var(--gold-light);
  margin-bottom: 18px;
}
.help-symbol svg { width: 22px; height: 22px; }
.help-card h3 { color: var(--text-title); font-size: 22px; margin-bottom: 10px; }
.help-card p { color: var(--text-body); font-size: 15px; line-height: 1.85; margin-bottom: 20px; }
.help-card .btn { width: 100%; margin-top: 4px; }
.help-meta {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,.08);
  color: var(--text-muted);
  font-size: 13px;
  display: grid;
  gap: 4px;
}
.entry-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  padding: 16px;
  transition: border-color var(--transition), transform var(--transition);
}
.entry-card:hover {
  transform: translateY(-2px);
  border-color: rgba(213,164,91,.32);
}
.entry-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(124,200,193,.1);
  border: 1px solid rgba(124,200,193,.25);
  color: var(--cyan-dim);
}
.entry-icon svg { width: 18px; height: 18px; }
.entry-card h4 { color: var(--text-title); font-size: 15px; margin-bottom: 2px; }
.entry-card p { margin: 0; color: var(--text-muted); font-size: 13px; line-height: 1.6; }
.entry-arrow { color: var(--gold); font-size: 17px; font-weight: 700; padding-right: 4px; }
.security-chip {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px;
  border-radius: 14px;
  background: rgba(217,118,109,.045);
  border: 1px solid rgba(217,118,109,.2);
  color: var(--text-body);
  font-size: 13px;
  line-height: 1.75;
}
.security-chip svg { flex: 0 0 auto; width: 20px; height: 20px; color: var(--danger); margin-top: 2px; }
.security-chip strong { color: var(--text-title); }

.note-panel {
  background: rgba(255,255,255,.018);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 52px);
}
.note-inner { align-items: center; }
.note-copy { padding-right: 20px; }
.note-copy h2 { margin-top: 6px; }
.note-copy > p { color: var(--text-muted); }
.check-items { display: grid; gap: 20px; margin-top: 26px; }
.check-items li { display: flex; gap: 13px; align-items: flex-start; }
.check-mark {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #16120c;
  font-size: 15px;
  font-weight: 800;
  margin-top: 4px;
  box-shadow: 0 0 14px rgba(213,164,91,.22);
}
.check-items strong { color: var(--text-title); font-size: 15px; display: block; margin-bottom: 3px; }
.check-items p { margin: 0; color: var(--text-muted); font-size: 14px; line-height: 1.75; }
.note-media { position: relative; }
.media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  box-shadow: 0 18px 44px rgba(0,0,0,.34);
}
.media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.media-ribbon {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(6,9,13,.74);
  border: 1px solid rgba(213,164,91,.3);
  color: var(--gold-light);
  font-size: 13px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.section--faq {
  background: rgba(255,255,255,.014);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.faq-wrap { align-items: flex-start; }
.faq-intro h2 { margin: 8px 0 14px; }
.faq-intro p {
  color: var(--text-muted);
  max-width: 420px;
}
.faq-intro .btn { margin-top: 10px; }
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color var(--transition), background var(--transition);
}
.faq-item[open] {
  border-color: rgba(213,164,91,.35);
  background: rgba(23,35,49,.56);
}
.faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 19px 20px 19px 22px;
  cursor: pointer;
  color: var(--text-title);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-toggle {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(213,164,91,.3);
  color: var(--gold);
  background: rgba(213,164,91,.06);
  transition: transform var(--transition), background var(--transition), color var(--transition);
}
.faq-toggle svg { width: 15px; height: 15px; }
.faq-item[open] .faq-toggle {
  transform: rotate(135deg);
  background: var(--gold);
  color: #12100a;
}
.faq-body {
  padding: 0 22px 22px;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.8;
}

.section--cta { padding-top: clamp(56px, 8vw, 96px); }
.cta-banner {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 20% 20%, rgba(213,164,91,.15), transparent 28%),
    linear-gradient(115deg, rgba(6,9,13,.94), rgba(11,17,26,.9)),
    url('/assets/images/backpic/back-2.png') center / cover;
  border: 1px solid rgba(213,164,91,.24);
}
.cta-content { max-width: 560px; }
.cta-content h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 10px; }
.cta-content p { color: var(--text-muted); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.site-footer {
  background: #05080c;
  border-top: 1px solid var(--line-soft);
  padding: 72px 0 24px;
  margin-top: clamp(56px, 8vw, 100px);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: 48px 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.footer-brand p { color: var(--text-muted); font-size: 14px; line-height: 1.85; margin: 18px 0 16px; }
.footer-brand .brand { margin-bottom: 8px; }
.footer-title {
  color: var(--text-title);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: .02em;
}
.footer-links { display: grid; gap: 9px; }
.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
}
.footer-links a:hover { color: var(--gold-light); }
.footer-tip {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-radius: 12px;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(124,200,193,.16);
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.8;
}
.footer-tip svg { flex: 0 0 auto; color: var(--cyan-dim); margin-top: 2px; }
.footer-tip strong { color: var(--text-body); font-weight: 600; }
.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 22px;
  color: #5f6c7b;
  font-size: 13px;
}
.foot-bottom a { color: var(--text-muted); }
.foot-bottom a:hover { color: var(--gold-light); }
.nav-toggle {
  display: none;
}
.nav-toggle {
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid var(--line-soft);
  background: transparent;
  color: var(--text-title);
}
.nav-toggle svg { width: 22px; height: 22px; }

@media (max-width: 1100px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 42px 28px; }
}
@media (max-width: 1024px) {
  .nav-toggle {
    display: inline-flex;
    position: relative;
    z-index: 20;
  }
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 18px;
    background: rgba(6,9,13,.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .28s ease, visibility .28s ease;
  }
  .main-nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .main-nav .nav-link {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-body);
    padding: 10px 0;
  }
  .main-nav .nav-link:hover { color: var(--gold-light); background: transparent; }
  .main-nav .nav-link.is-active { color: var(--gold-light); }
  .main-nav .nav-link.is-active::before {
    top: 6px;
    left: 50%;
  }
  .nav-cta { margin: 14px 0 0; min-width: 180px; justify-content: center; }
  .aside-sticky { position: static; top: auto; }
}
@media (max-width: 820px) {
  .container { padding: 0 20px; }
  .page-banner { min-height: 460px; padding: 80px 0 84px; }
  .page-banner::before { background: linear-gradient(120deg, rgba(6,9,13,.95), rgba(9,14,21,.78)); }
  .step-item { padding-left: 64px; }
  .step-num { width: 45px; height: 45px; font-size: 13px; }
  .step-item::before { left: 22px; }
  .guide-callout { margin-left: 64px; }
  .note-copy { padding-right: 0; margin-bottom: 28px; }
  .note-inner > .columns:nth-child(1) { order: 1; }
  .note-inner > .columns:nth-child(2) { order: 2; }
  .faq-intro { margin-bottom: 28px; }
  .cta-banner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .navbar { min-height: 66px; }
  .brand__mark { width: 38px; height: 38px; }
  .brand__text { font-size: 14px; }
  .brand__text small { font-size: 8px; letter-spacing: .14em; }
  .page-banner { min-height: auto; padding: 60px 0 64px; }
  .banner-kicker { letter-spacing: .08em; }
  .banner-desc { font-size: 16px; }
  .banner-actions .btn { width: 100%; }
  .step-item { padding: 0 0 36px 54px; }
  .step-num { width: 40px; height: 40px; font-size: 13px; }
  .step-item::before { left: 20px; top: 48px; }
  .step-card { padding: 18px; }
  .step-card h3 { font-size: 17px; }
  .guide-callout { margin-left: 54px; padding: 14px; }
  .help-card { padding: 22px; }
  .entry-card { grid-template-columns: auto 1fr; }
  .entry-arrow { display: none; }
  .note-panel { padding: 24px; }
  .media-ribbon { left: 12px; bottom: 12px; font-size: 12px; }
  .faq-item summary { padding: 16px 16px 16px 18px; font-size: 15px; }
  .faq-body { padding: 0 18px 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand p { margin-bottom: 12px; }
  .foot-bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 420px) {
  .brand__mark { width: 34px; height: 34px; }
  .brand__text { font-size: 13px; }
  .brand__text small { display: none; }
  .navbar { gap: 10px; }
  .cta-banner { padding: 28px 20px; }
  .btn--lg { width: 100%; }
  .step-card p { font-size: 14px; }
}

/* roulang page: category2 */
@charset "UTF-8";
:root{
  --void:#06090d;
  --base:#0b111a;
  --surface:#111b27;
  --raised:#172331;
  --line:#253342;
  --line-soft:rgba(226,242,255,.08);
  --text-title:#f0f3f6;
  --text-body:#bdc7d1;
  --text-muted:#7e8a9a;
  --gold:#d5a45b;
  --gold-light:#eec487;
  --cyan-dim:#7cc8c1;
  --danger:#d2766d;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-card:0 16px 36px rgba(0,0,0,.35);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-body);
  background-color:var(--void);
  background-image:
    radial-gradient(circle at 18% 8%, rgba(213,164,91,.05), transparent 24%),
    radial-gradient(circle at 88% 16%, rgba(124,200,193,.05), transparent 20%),
    radial-gradient(rgba(255,255,255,.14) 1px, transparent 1px);
  background-size:auto,auto,2px 2px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;border:0;background:transparent;cursor:pointer}
ul{list-style:none}
p{margin:0}
h1,h2,h3,h4{line-height:1.35;color:var(--text-title);font-weight:700}
h1{font-size:clamp(34px,5vw,58px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:20px}
.container{max-width:1200px;margin:0 auto;padding-left:clamp(16px,4vw,40px);padding-right:clamp(16px,4vw,40px)}
.section{padding:96px 0}
@media (max-width:768px){.section{padding:62px 0}}

/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:300;
  background:rgba(8,13,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.navbar{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
.brand__mark{width:38px;height:38px;flex:0 0 38px;color:var(--gold)}
.brand__text{display:flex;flex-direction:column;line-height:1.25;font-weight:800;color:var(--text-title);letter-spacing:.02em;white-space:nowrap}
.brand__text small{font-size:11px;letter-spacing:.3em;color:var(--text-muted);font-weight:600;margin-top:3px}
.main-nav{display:flex;align-items:center;justify-content:flex-end;gap:4px}
.nav-link{
  position:relative;
  padding:9px 13px;
  font-size:15px;
  font-weight:500;
  color:var(--text-body);
  border-radius:8px;
  white-space:nowrap;
  transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--text-title);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--gold-light);font-weight:700}
.nav-link.is-active::before{
  content:"✦";
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  top:-7px;
  font-size:11px;
  color:var(--gold);
  opacity:.85;
}
.nav-btn{padding:9px 15px;font-size:15px;white-space:nowrap}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  color:var(--text-title);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:10px;
}
.nav-toggle svg{width:22px;height:22px}
@media (max-width:899px){
  .brand__text{font-size:16px}
  .brand__text small{display:none}
  .nav-toggle{display:inline-flex}
  .main-nav{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    position:absolute;
    top:76px;
    left:0;
    right:0;
    padding:18px 20px 24px;
    background:rgba(7,11,17,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px rgba(0,0,0,.42);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:10px}
  .nav-link.is-active{background:rgba(213,164,91,.1)}
  .nav-link.is-active::before{display:none}
  .nav-cta{margin-top:14px;justify-content:center}
}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 22px;
  font-size:15px;
  font-weight:700;
  border-radius:999px;
  border:1px solid transparent;
  transition:transform .2s,box-shadow .2s,border-color .2s,background .2s,color .2s;
}
.btn--primary{
  color:#160f07;
  background:linear-gradient(135deg,#eec487,#d5a45b);
  border-color:var(--gold-light);
}
.btn--primary:hover{
  background:linear-gradient(135deg,#f6d497,#e6b975);
  color:#0d0905;
  box-shadow:0 0 0 4px rgba(213,164,91,.15),0 10px 26px rgba(213,164,91,.2);
  transform:translateY(-2px);
}
.btn--secondary{
  color:var(--gold-light);
  background:rgba(213,164,91,.08);
  border-color:rgba(213,164,91,.65);
}
.btn--secondary:hover{
  background:rgba(213,164,91,.16);
  color:#f7d6a1;
  box-shadow:0 0 0 4px rgba(213,164,91,.1);
  transform:translateY(-2px);
}
.btn--ghost{
  color:#dfe7ee;
  background:rgba(255,255,255,.03);
  border-color:var(--line);
}
.btn--ghost:hover{color:#fff;border-color:var(--gold);background:rgba(213,164,91,.08)}
.btn:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.btn:active{transform:translateY(0)}

/* hero inner */
.cat-banner{
  position:relative;
  padding:86px 0 88px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(6,9,13,.96) 0%,rgba(6,9,13,.9) 36%,rgba(6,9,13,.62) 72%,rgba(6,9,13,.22) 100%);
}
.cat-banner__content{position:relative;z-index:2;max-width:820px}
.cat-banner__eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.28em;
  color:var(--gold-light);
  text-transform:uppercase;
  background:rgba(0,0,0,.25);
  border:1px solid rgba(213,164,91,.35);
  padding:7px 14px;
  border-radius:999px;
}
.cat-banner h1{
  margin:24px 0 18px;
  color:#f8f3ec;
  text-shadow:0 4px 30px rgba(0,0,0,.55);
  max-width:680px;
}
.cat-banner__lead{
  font-size:18px;
  line-height:1.9;
  color:rgba(232,239,246,.92);
  max-width:620px;
  text-shadow:0 2px 8px rgba(0,0,0,.4);
}
.cat-banner__actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:16px}
.cat-banner__note{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  margin-top:22px;
  gap:12px 18px;
  color:var(--text-body);
  font-size:14px;
}
.cat-banner__note strong{
  color:#f3dab2;
  padding:3px 10px;
  border:1px solid rgba(238,196,135,.5);
  border-radius:6px;
  background:rgba(213,164,91,.1);
  font-size:14px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:38px;
  font-size:13px;
  color:var(--text-muted);
}
.breadcrumb a{color:var(--text-body)}
.breadcrumb a:hover{color:var(--gold-light)}
.breadcrumb span[aria-current="page"]{color:var(--gold-light)}
@media(max-width:768px){
  .cat-banner{padding:52px 0 56px}
  .cat-banner__lead{font-size:16px;line-height:1.8}
  .cat-banner__actions .btn{width:100%}
  .cat-banner__note{align-items:flex-start}
}

/* section head */
.section-head{margin-bottom:34px}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:7px;
  margin-bottom:10px;
  font-size:13px;
  letter-spacing:.24em;
  font-weight:700;
  color:var(--gold);
  text-transform:uppercase;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--gold)}
.section-head p{max-width:680px;color:var(--text-body);margin-top:14px}

/* notice */
.notice-card{
  display:flex;
  align-items:flex-start;
  gap:18px;
  padding:20px 24px;
  background:rgba(213,164,91,.07);
  border:1px solid rgba(213,164,91,.28);
  border-radius:var(--radius-md);
  color:var(--text-body);
  margin:30px 0 18px;
}
.notice-card svg{width:24px;height:24px;color:var(--gold);flex:0 0 24px;margin-top:4px}
.notice-card strong{color:#f2d9ac}
@media(max-width:640px){.notice-card{padding:16px 18px}}

/* timeline */
.timeline-wrap{
  position:relative;
  margin-top:46px;
}
.timeline{
  position:relative;
  margin-left:10px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:229px;
  top:14px;
  bottom:4px;
  width:1px;
  background:linear-gradient(180deg,var(--gold),rgba(124,200,193,.4),transparent);
}
.timeline-item{
  display:grid;
  grid-template-columns:210px minmax(0,1fr);
  gap:0 38px;
  position:relative;
  margin-bottom:28px;
}
.timeline-item__date{
  position:relative;
  padding-top:18px;
  text-align:right;
}
.timeline-item__date span{
  color:var(--text-muted);
  font-size:14px;
  letter-spacing:.08em;
  line-height:1.6;
}
.timeline-item__date small{display:block;font-size:12px;color:#5c6a7b;margin-top:4px}
.timeline-item__date::after{
  content:"";
  position:absolute;
  width:14px;
  height:14px;
  right:-24px;
  top:33px;
  border-radius:50%;
  background:var(--raised);
  border:2px solid var(--gold);
  background-clip:padding-box;
  box-shadow:0 0 0 4px rgba(213,164,91,.12);
  z-index:3;
}
.timeline-card{
  position:relative;
  background:linear-gradient(180deg,var(--raised),var(--surface));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 30px;
  transition:border-color .25s,transform .25s,box-shadow .25s;
}
.timeline-card:hover{
  border-color:rgba(213,164,91,.55);
  box-shadow:0 18px 40px rgba(0,0,0,.35);
  transform:translateY(-3px);
}
.timeline-card--latest{
  border-color:rgba(238,196,135,.48);
  background:linear-gradient(180deg,rgba(213,164,91,.14),rgba(11,17,26,.2)),var(--raised);
  box-shadow:0 0 0 1px rgba(238,196,135,.08),0 24px 55px rgba(0,0,0,.42);
}
.timeline-card__head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-bottom:10px}
.timeline-card__head h3{
  margin:0;
  font-size:21px;
  color:var(--text-title);
  font-weight:800;
}
.timeline-card__desc{color:var(--text-body);font-size:15px;line-height:1.85}
.timeline-card__list{
  display:flex;
  flex-wrap:wrap;
  gap:8px 14px;
  margin-top:16px;
  font-size:13px;
}
.timeline-card__list li{
  color:var(--text-muted);
}
.timeline-card__list li::before{
  content:"·";
  color:var(--gold);
  font-weight:900;
  margin-right:7px;
}
.timeline-card__foot{
  margin-top:20px;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--text-muted);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  font-size:12px;
  font-weight:600;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  color:var(--text-body);
  border:1px solid var(--line);
}
.tag--gold{
  color:#1c150b;
  background:linear-gradient(120deg,var(--gold-light),var(--gold));
  border-color:var(--gold-light);
}
.tag--cyan{color:var(--cyan-dim);border-color:rgba(124,200,193,.4);background:rgba(124,200,193,.08)}
.tag--muted{color:var(--text-muted)}
@media(max-width:760px){
  .timeline::before{display:none}
  .timeline-item{display:block;padding-left:20px;border-left:1px solid var(--line);margin-bottom:20px}
  .timeline-item__date{text-align:left;padding-top:0;border:0}
  .timeline-item__date span{color:var(--gold-light)}
  .timeline-item__date small{display:none}
  .timeline-item__date::after{left:-38px;right:auto;top:8px;width:11px;height:11px}
  .timeline-card{padding:20px 16px}
  .timeline-card__head h3{font-size:18px}
}

/* feature split */
.change-block{
  display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:60px;
  align-items:stretch;
}
.change-media{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  min-height:400px;
  max-height:540px;
  background:var(--surface);
}
.change-media img{width:100%;height:100%;object-fit:cover}
.change-media::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,transparent 55%,rgba(6,9,13,.55))}
.change-list{display:flex;flex-direction:column;gap:10px}
.change-list__item{
  display:flex;
  gap:18px;
  align-items:flex-start;
  padding:18px 0;
  border-top:1px solid var(--line-soft);
}
.change-list__item:last-child{border-bottom:1px solid var(--line-soft)}
.change-list__icon{
  flex:0 0 40px;
  width:40px;
  height:40px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(213,164,91,.1);
  border:1px solid rgba(213,164,91,.3);
  color:var(--gold-light);
}
.change-list__icon svg{width:20px;height:20px}
.change-list__body h3{font-size:17px;margin-bottom:6px}
.change-list__body p{font-size:14px;color:var(--text-muted);line-height:1.8;margin:0}
.change-list__muted{margin-top:14px;text-align:right;font-size:13px;color:var(--text-muted)}
@media(max-width:900px){
  .change-block{grid-template-columns:1fr;gap:28px}
  .change-media{min-height:280px}
}

/* steps */
.guide-steps{display:flex;flex-direction:column;gap:2px;margin-top:16px}
.step-item{display:flex;gap:20px;padding:18px 0;border-bottom:1px solid var(--line-soft)}
.step-item__num{
  flex:0 0 62px;
  font-size:26px;
  font-weight:800;
  color:var(--gold);
  letter-spacing:.02em;
  line-height:1.2;
}
.step-item__num small{display:block;font-size:12px;color:var(--text-muted)}
.step-item__body h3{font-size:17px;margin-bottom:6px}
.step-item__body p{font-size:14px;color:var(--text-muted);margin:0}
.help-card{
  position:sticky;
  top:100px;
  background:linear-gradient(180deg,var(--raised),var(--surface));
  border:1px solid var(--line);
  border-radius:20px;
  padding:34px 28px 30px;
}
.help-card__icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:14px;background:rgba(124,200,193,.1);color:var(--cyan-dim);margin-bottom:16px}
.help-card h3{font-size:20px;margin-bottom:12px}
.help-card p{font-size:14px;color:var(--text-muted);margin-bottom:22px}
.line-links{display:flex;gap:24px;margin-top:46px;flex-wrap:wrap}
.line-links a{font-weight:600;color:var(--gold-light);font-size:14px}
.line-links a:hover{color:#fbd99d}
@media(max-width:900px){
  .help-card{position:relative;top:0;margin-top:28px}
}

/* faq */
.faq-section{background:rgba(9,15,23,.7);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-layout{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:58px}
.faq-intro p{margin-top:16px;color:var(--text-muted);line-height:1.9}
.faq-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.custom-accordion{display:flex;flex-direction:column}
.acc-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:0;margin-bottom:10px;overflow:hidden}
.acc-trigger{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 22px;
  width:100%;
  text-align:left;
  color:var(--text-title);
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  background:transparent;
  transition:background .2s;
}
.acc-trigger:hover,.acc-open .acc-trigger{background:rgba(213,164,91,.08)}
.acc-icon{
  flex:0 0 24px;
  width:24px;
  height:24px;
  position:relative;
  transition:transform .22s ease;
}
.acc-icon::before,.acc-icon::after{
  content:"";
  position:absolute;
  left:6px;
  top:11px;
  width:12px;
  height:2px;
  border-radius:2px;
  background:var(--gold-light);
}
.acc-icon::after{transform:rotate(90deg)}
.acc-open .acc-icon{transform:rotate(180deg)}
.acc-open .acc-icon::after{opacity:0}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .28s ease;color:var(--text-body)}
.acc-panel p{padding:0 22px 22px;font-size:14px;line-height:1.9;color:var(--text-muted)}
@media(max-width:900px){
  .faq-layout{grid-template-columns:1fr;gap:32px}
}

/* cta */
.cta-band{
  position:relative;
  padding:96px 0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-position:center;
  background-size:cover;
  isolation:isolate;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(6,9,13,.96) 10%,rgba(6,9,13,.86) 45%,rgba(6,9,13,.55));
  z-index:-1;
}
.cta-band__inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-band__copy{max-width:650px}
.cta-band__copy h2{color:#f7efe3;font-size:clamp(28px,4vw,38px);margin-bottom:12px}
.cta-band__copy p{color:var(--text-body);font-size:16px}
.cta-band__copy .eyebrow{display:inline-flex;align-items:center;gap:8px;letter-spacing:.2em;margin-bottom:16px;font-weight:700;color:var(--gold);font-size:13px}
.verify-tip{
  display:flex;
  gap:12px;
  align-items:center;
  margin-top:20px;
  padding:13px 18px;
  max-width:640px;
  background:rgba(213,164,91,.08);
  border:1px solid rgba(213,164,91,.3);
  border-radius:12px;
  font-size:13px;
  color:#d7e0e8;
}
.verify-tip svg{color:var(--danger);width:18px;height:18px;flex:0 0 18px}
@media (max-width:768px){
  .cta-band{padding:60px 0}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
  .cta-band__actions .btn{width:100%}
}

/* footer */
.site-footer{background:#070a0f;border-top:1px solid var(--line);padding-top:62px}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .8fr 1.2fr;gap:44px 34px}
.footer-brand p{font-size:14px;color:var(--text-muted);margin:18px 0 14px;max-width:360px}
.footer-title{font-size:15px;color:var(--text-title);font-weight:700;margin-bottom:12px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:6px}
.footer-links a{font-size:14px;color:var(--text-body);display:inline-flex;align-items:center;gap:6px}
.footer-links a::before{content:"›";color:var(--gold)}
.footer-links a:hover{color:var(--gold-light)}
.footer-tips{display:flex;gap:14px;align-items:flex-start;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:12px;font-size:13px;color:var(--text-muted)}
.footer-tips svg{color:var(--gold);flex:0 0 20px;width:20px;height:20px;margin-top:3px}
.foot-bottom{
  border-top:1px solid var(--line);
  margin-top:48px;
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-muted);
}
.foot-bottom a{color:var(--text-body)}
.foot-bottom a:hover{color:var(--gold-light)}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column}
}

/* utilities */
.py-40{padding-top:40px;padding-bottom:40px}
.mt-20{margin-top:20px}
.mt-30{margin-top:30px}
.mt-40{margin-top:40px}
.mb-10{margin-bottom:10px}

/* roulang page: category3 */
:root {
            --void: #06090d;
            --base: #0b111a;
            --surface: #111b27;
            --raised: #172331;
            --line: #253342;
            --line-soft: rgba(226, 242, 255, 0.08);
            --text-title: #f0f3f6;
            --text-body: #bdc7d1;
            --text-muted: #7e8a9a;
            --gold: #d5a45b;
            --gold-light: #eec487;
            --cyan-dim: #7cc8c1;
            --danger: #d2766d;
            --radius: 16px;
            --radius-s: 10px;
            --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
        }
        *,
        *:before,
        *:after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background:
                radial-gradient(1px 1px at 12% 18%, rgba(255, 255, 255, 0.6), transparent),
                radial-gradient(1px 1px at 38% 9%, rgba(238, 196, 135, 0.35), transparent),
                radial-gradient(1.5px 1.5px at 64% 24%, rgba(255, 255, 255, 0.4), transparent),
                radial-gradient(1px 1px at 84% 12%, rgba(255, 255, 255, 0.55), transparent),
                radial-gradient(1px 1px at 28% 62%, rgba(255, 255, 255, 0.28), transparent),
                radial-gradient(1.5px 1.5px at 72% 44%, rgba(238, 196, 135, 0.25), transparent),
                radial-gradient(1px 1px at 95% 74%, rgba(255, 255, 255, 0.4), transparent),
                var(--void);
            color: var(--text-body);
            line-height: 1.75;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        ul {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(7, 11, 17, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 78px;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: var(--text-title);
            flex-shrink: 0;
        }
        .brand__mark {
            width: 42px;
            height: 42px;
            color: var(--gold);
        }
        .brand__text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text-title);
            display: flex;
            flex-direction: column;
            line-height: 1.2;
            white-space: nowrap;
        }
        .brand__text small {
            font-size: 10px;
            letter-spacing: 0.28em;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 4px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            color: var(--text-body);
            padding: 8px 0;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:before {
            content: "";
            position: absolute;
            width: 5px;
            height: 5px;
            background: var(--gold);
            border-radius: 50%;
            top: 0;
            left: 50%;
            transform: translateX(-50%) scale(0);
            transition: transform 0.2s ease;
            box-shadow: 0 0 10px var(--gold);
        }
        .nav-link:hover {
            color: var(--gold-light);
        }
        .nav-link.is-active {
            color: var(--gold);
        }
        .nav-link.is-active:before {
            transform: translateX(-50%) scale(1);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            border: 0;
            cursor: pointer;
            font-weight: 700;
            transition: all 0.2s ease;
            letter-spacing: 0.02em;
            line-height: 1;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }
        .btn--primary {
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            color: #14100a;
            box-shadow: 0 6px 24px rgba(213, 164, 91, 0.22);
        }
        .btn--primary:hover {
            filter: brightness(1.07);
            box-shadow: 0 10px 32px rgba(213, 164, 91, 0.36);
            transform: translateY(-1px);
        }
        .btn--primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn--ghost {
            background: transparent;
            border: 1px solid rgba(213, 164, 91, 0.75);
            color: var(--gold-light);
        }
        .btn--ghost:hover {
            background: rgba(213, 164, 91, 0.1);
            border-color: var(--gold-light);
        }
        .nav-cta {
            height: 42px;
            padding: 0 24px;
            font-size: 14px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            color: #14100a;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--line);
            width: 44px;
            height: 44px;
            border-radius: var(--radius-s);
            color: var(--text-title);
            align-items: center;
            justify-content: center;
        }
        .banner {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center 30% / cover no-repeat;
            border-bottom: 1px solid var(--line);
            padding: 108px 0 96px;
        }
        .banner:before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(6, 9, 13, 0.96) 20%, rgba(6, 9, 13, 0.66) 55%, rgba(6, 9, 13, 0.35));
        }
        .banner .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            font-size: 14px;
            color: var(--text-muted);
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }
        .breadcrumb a:hover {
            color: var(--gold-light);
        }
        .banner-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--gold-light);
            font-size: 14px;
            letter-spacing: 0.18em;
            margin-bottom: 18px;
        }
        .banner-eyebrow:before {
            content: "";
            width: 26px;
            height: 1px;
            background: var(--gold);
        }
        .banner h1 {
            font-size: clamp(36px, 6vw, 62px);
            line-height: 1.18;
            margin: 0 0 22px;
            color: var(--text-title);
            font-weight: 900;
            letter-spacing: 0.02em;
            max-width: 760px;
        }
        .banner h1 span {
            color: var(--gold-light);
        }
        .banner-intro {
            font-size: 17px;
            line-height: 1.9;
            color: #c9d2dd;
            max-width: 690px;
        }
        .banner-ctas {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 34px;
        }
        .btn--lg {
            height: 48px;
            padding: 0 30px;
            font-size: 15px;
        }
        .page-section {
            padding: 96px 0;
            position: relative;
        }
        .section-head {
            max-width: 760px;
            margin-bottom: 42px;
        }
        .section-head .kicker {
            color: var(--gold);
            font-size: 14px;
            letter-spacing: 0.18em;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-head .kicker:before {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--gold);
        }
        .section-head h2 {
            font-size: clamp(28px, 4vw, 40px);
            line-height: 1.3;
            color: var(--text-title);
            margin: 0 0 16px;
            font-weight: 800;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.9;
            margin: 0;
        }
        .security-ribbon {
            background: linear-gradient(0deg, rgba(210, 118, 109, 0.04), rgba(210, 118, 109, 0.04)), var(--surface);
            border: 1px solid rgba(210, 118, 109, 0.3);
            border-left: 4px solid var(--danger);
            border-radius: var(--radius);
            padding: 22px 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            margin-bottom: 52px;
            box-shadow: var(--shadow);
        }
        .security-ribbon svg {
            width: 26px;
            height: 26px;
            flex-shrink: 0;
            color: var(--danger);
            margin-top: 3px;
        }
        .security-ribbon h3 {
            font-size: 18px;
            margin: 0 0 8px;
            color: var(--text-title);
            font-weight: 800;
        }
        .security-ribbon p {
            margin: 0;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.85;
        }
        .security-ribbon strong {
            color: var(--gold-light);
            font-weight: 700;
        }
        .notice-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 52px;
        }
        .notices-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .notice-item {
            display: grid;
            grid-template-columns: 150px minmax(0, 1fr);
            gap: 28px;
            background: var(--surface);
            border: 1px solid var(--line-soft);
            border-radius: var(--radius);
            padding: 28px 32px;
            transition: border-color 0.25s, transform 0.25s, background 0.25s;
            position: relative;
            overflow: hidden;
        }
        .notice-item:hover {
            border-color: rgba(213, 164, 91, 0.45);
            background: var(--raised);
            transform: translateY(-2px);
        }
        .notice-item--top {
            border-left: 4px solid var(--gold);
        }
        .notice-item--risk {
            border-left: 4px solid var(--danger);
        }
        .notice-side-num {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.12em;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .notice-side-num time {
            font-size: 13px;
            color: var(--text-body);
            letter-spacing: 0;
        }
        .notice-side-num .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            line-height: 1.6;
            font-weight: 600;
            letter-spacing: 0.02em;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-body);
            border: 1px solid rgba(255, 255, 255, 0.07);
        }
        .tag--danger {
            background: rgba(210, 118, 109, 0.12);
            color: #e5a49d;
            border-color: rgba(210, 118, 109, 0.28);
        }
        .tag--gold {
            background: rgba(213, 164, 91, 0.1);
            color: var(--gold-light);
            border-color: rgba(213, 164, 91, 0.28);
        }
        .tag--cyan {
            background: rgba(124, 200, 193, 0.08);
            color: var(--cyan-dim);
            border-color: rgba(124, 200, 193, 0.24);
        }
        .notice-content h3 {
            color: var(--text-title);
            font-size: 19px;
            line-height: 1.55;
            margin: 0 0 10px;
            font-weight: 800;
        }
        .notice-content p {
            margin: 0;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
        }
        .notice-content .notice-link {
            margin-top: 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--gold);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s;
        }
        .notice-content .notice-link:hover {
            gap: 10px;
            color: var(--gold-light);
        }
        .safe-checklist {
            background: linear-gradient(180deg, var(--surface), var(--raised));
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px;
            position: sticky;
            top: 110px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
        }
        .safe-checklist-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 800;
            color: var(--text-title);
            margin-bottom: 20px;
        }
        .safe-checklist-title .shield {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: rgba(213, 164, 91, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
        }
        .check-item {
            display: flex;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--line-soft);
            align-items: flex-start;
        }
        .check-item:last-of-type {
            border-bottom: 0;
        }
        .check-item .c-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(213, 164, 91, 0.12);
            color: var(--gold-light);
            border: 1px solid rgba(213, 164, 91, 0.28);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 700;
        }
        .check-item b {
            font-size: 15px;
            color: var(--text-title);
            font-weight: 700;
            display: block;
            line-height: 1.5;
        }
        .check-item span {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        .safe-actions {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }
        .protection-section {
            background: var(--base);
            border-top: 1px solid var(--line-soft);
        }
        .protect-grid {
            display: grid;
            grid-template-columns: 1.18fr 0.82fr;
            gap: 30px;
            margin-top: 26px;
        }
        .protect-main {
            background: linear-gradient(135deg, var(--raised), var(--surface));
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 36px;
            position: relative;
            overflow: hidden;
        }
        .protect-main:after {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(213, 164, 91, 0.12), rgba(213, 164, 91, 0));
        }
        .protect-main h3 {
            color: var(--text-title);
            font-size: 21px;
            margin: 0 0 14px;
            font-weight: 800;
        }
        .protect-main p {
            color: var(--text-body);
            font-size: 15px;
            margin-bottom: 18px;
            max-width: 620px;
        }
        .protect-main ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin: 24px 0 28px;
        }
        .protect-main li {
            display: flex;
            gap: 12px;
            color: var(--text-body);
            font-size: 15px;
        }
        .protect-main li:before {
            content: "";
            width: 7px;
            height: 7px;
            border-radius: 50%;
            flex-shrink: 0;
            background: var(--gold);
            margin-top: 10px;
            box-shadow: 0 0 8px var(--gold);
        }
        .protect-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .mini-card {
            border-radius: var(--radius);
            background: var(--surface);
            border: 1px solid var(--line-soft);
            padding: 28px;
            flex: 1;
        }
        .mini-card h4 {
            color: var(--text-title);
            font-size: 16px;
            font-weight: 800;
            margin: 0 0 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mini-card h4 .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan-dim);
        }
        .mini-card p {
            margin: 0;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.85;
        }
        .faq-wrap {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 60px;
            align-items: start;
        }
        .faq-intro {
            position: sticky;
            top: 130px;
        }
        .faq-intro h2 {
            font-size: clamp(28px, 4vw, 40px);
            color: var(--text-title);
            line-height: 1.3;
            margin: 0 0 16px;
            font-weight: 800;
        }
        .faq-intro p {
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 26px;
        }
        .faq-list details {
            border-bottom: 1px solid var(--line);
        }
        .faq-list details:first-child {
            border-top: 1px solid var(--line);
        }
        .faq-list summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 22px 4px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            transition: color 0.2s;
            position: relative;
        }
        .faq-list summary::-webkit-details-marker {
            display: none;
        }
        .faq-list summary:hover {
            color: var(--gold-light);
        }
        .faq-list summary .faq-icon {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            border-radius: 50%;
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            transition: transform 0.2s, background 0.2s;
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-list details[open] summary {
            color: var(--gold-light);
        }
        .faq-list details[open] summary .faq-icon {
            transform: rotate(45deg);
            background: rgba(213, 164, 91, 0.14);
        }
        .faq-list details .faq-answer {
            padding: 0 48px 24px 4px;
            color: #9dabba;
            font-size: 15px;
            line-height: 1.9;
        }
        .cta-banner {
            background: url('/assets/images/backpic/back-2.png') center 45% / cover no-repeat;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            position: relative;
        }
        .cta-banner:before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(6, 9, 13, 0.92), rgba(6, 9, 13, 0.68), rgba(6, 9, 13, 0.75));
        }
        .cta-banner .container {
            position: relative;
            z-index: 2;
            padding: 96px 24px;
            text-align: center;
        }
        .cta-banner h2 {
            color: var(--text-title);
            font-size: clamp(28px, 5vw, 48px);
            font-weight: 900;
            margin: 0 0 18px;
        }
        .cta-banner h2 em {
            color: var(--gold-light);
            font-style: normal;
        }
        .cta-banner p {
            color: #aeb9c6;
            max-width: 620px;
            margin: 0 auto 34px;
            font-size: 16px;
            line-height: 1.9;
        }
        .cta-banner .btn-row {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .site-footer {
            background: var(--void);
            border-top: 1px solid var(--line);
            padding: 88px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr 0.8fr 1.2fr;
            gap: 48px;
            padding-bottom: 56px;
        }
        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-muted);
            margin: 0 0 18px;
        }
        .footer-title {
            color: var(--text-title);
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 24px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--gold-light);
        }
        .footer-tip {
            border: 1px solid var(--line);
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius-s);
            padding: 16px;
            display: flex;
            gap: 12px;
            color: var(--text-muted);
            align-items: flex-start;
            font-size: 13px;
            line-height: 1.8;
        }
        .footer-tip svg {
            flex-shrink: 0;
            color: var(--gold);
        }
        .foot-bottom {
            border-top: 1px solid var(--line-soft);
            display: flex;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            padding: 24px 0 30px;
            color: var(--text-muted);
            font-size: 13px;
        }
        .foot-bottom a {
            color: var(--text-muted);
        }
        .foot-bottom a:hover {
            color: var(--gold-light);
        }
        @media (max-width: 1100px) {
            .main-nav {
                gap: 20px;
            }
            .notice-layout {
                grid-template-columns: minmax(0, 1fr) 320px;
                gap: 30px;
            }
        }
        @media (max-width: 900px) {
            .navbar {
                height: 70px;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                right: 0;
                bottom: 0;
                background: rgba(7, 11, 17, 0.98);
                backdrop-filter: blur(16px);
                width: min(80vw, 350px);
                flex-direction: column;
                align-items: stretch;
                padding: 44px 30px;
                gap: 16px;
                transform: translateX(105%);
                transition: transform 0.3s ease;
                border-left: 1px solid var(--line);
                box-shadow: -20px 0 50px rgba(0, 0, 0, 0.4);
            }
            .main-nav.is-open {
                transform: translateX(0);
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-link {
                font-size: 17px;
                padding: 8px 0;
                border-bottom: 1px solid var(--line-soft);
            }
            .nav-cta {
                margin-top: 24px;
                height: 48px;
                width: 100%;
                border-radius: 12px;
            }
            .protection-section {
                padding: 72px 0;
            }
            .protect-grid {
                grid-template-columns: 1fr;
            }
            .notice-layout {
                grid-template-columns: 1fr;
            }
            .safe-checklist {
                position: static;
            }
            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .faq-intro {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
            .banner {
                padding: 76px 0 72px;
            }
            .page-section {
                padding: 72px 0;
            }
            .notice-item {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 24px;
            }
        }
        @media (max-width: 600px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .brand__text {
                font-size: 17px;
            }
            .brand__text small {
                font-size: 9px;
            }
            .brand__mark {
                width: 36px;
                height: 36px;
            }
            .banner {
                padding: 58px 0 56px;
            }
            .banner h1 {
                font-size: 34px;
            }
            .banner-intro {
                font-size: 15px;
            }
            .security-ribbon {
                padding: 18px;
                flex-direction: column;
            }
            .page-section {
                padding: 56px 0;
            }
            .cta-banner .container {
                padding: 60px 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .foot-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn--lg {
                width: 100%;
            }
            .banner-ctas {
                flex-direction: column;
            }
            .sect-row-responsive {
                grid-template-columns: 1fr !important;
            }
        }

/* roulang page: category4 */
:root {
  --void:#06090d;
  --base:#0b111a;
  --surface:#111b27;
  --raised:#172331;
  --line:#253342;
  --line-soft: rgba(226,242,255,0.08);
  --text-title:#f0f3f6;
  --text-body:#bdc7d1;
  --text-muted:#7e8a9a;
  --gold:#d5a45b;
  --gold-light:#eec487;
  --cyan-dim:#7cc8c1;
  --danger:#d2766d;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 50px -20px rgba(0,0,0,.75);
}

*,*::before,*::after { box-sizing:border-box; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body {
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-body);
  background-color:var(--void);
  background-image:
    radial-gradient(2px 2px at 14% 22%, rgba(238,196,135,.18), transparent 100%),
    radial-gradient(1px 1px at 88% 33%, rgba(255,255,255,.18), transparent 100%),
    radial-gradient(1.5px 1.5px at 34% 88%, rgba(124,200,193,.15), transparent 100%),
    radial-gradient(1px 1px at 67% 63%, rgba(238,196,135,.12), transparent 100%),
    linear-gradient(180deg,var(--void) 0%,var(--base) 60%,var(--base) 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img { max-width:100%; display:block; }
a { color:inherit; text-decoration:none; }
ul,ol { margin:0; padding:0; list-style:none; }
p { margin:0 0 1rem; }
button, input, select, textarea { font:inherit; color:inherit; }
::selection { background:rgba(213,164,91,.28); color:#fff; }
:focus-visible { outline:2px solid var(--gold); outline-offset:3px; }

.container { width:min(1240px, calc(100% - 48px)); margin-inline:auto; }
.text-gold { color:var(--gold); }
.section { padding:96px 0; position:relative; }
.section-head { margin-bottom:42px; max-width:800px; }
.section-head.center { margin-inline:auto; text-align:center; }
.eyebrow {
  display:inline-flex; align-items:center; gap:10px;
  font-size:13px; font-weight:600; letter-spacing:.18em;
  color:var(--gold); text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before {
  content:""; width:26px; height:1px; background:var(--gold);
}
.section-head h2 {
  font-size:clamp(26px,3.6vw,38px);
  line-height:1.28;
  color:var(--text-title);
  font-weight:800;
  letter-spacing:-.01em;
  margin:.25rem 0 .75rem;
}
.section-head p { color:var(--text-muted); font-size:16px; max-width:720px; }

/* Button system */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  height:46px; padding:0 28px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px; font-weight:600; line-height:1;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  letter-spacing:.02em; white-space:nowrap;
}
.btn svg { width:18px; height:18px; flex:none; }
.btn--primary {
  background:linear-gradient(135deg, #e4bd78 0%, var(--gold) 52%, #c38c42 100%);
  color:#071016;
  box-shadow:0 14px 30px -18px rgba(213,164,91,.72), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn--primary:hover {
  transform:translateY(-2px);
  background:linear-gradient(135deg, var(--gold-light) 0%, #ddb26b 60%, #d0a257 100%);
  box-shadow:0 18px 34px -18px rgba(213,164,91,.8), inset 0 1px 0 rgba(255,255,255,.4);
}
.btn--primary:active { transform:translateY(0); box-shadow:0 8px 22px -15px rgba(213,164,91,.9); }
.btn--ghost {
  border-color:rgba(213,164,91,.55);
  color:var(--gold-light);
  background:rgba(213,164,91,.04);
}
.btn--ghost:hover {
  background:rgba(213,164,91,.12);
  border-color:var(--gold-light);
  transform:translateY(-2px);
  color:#fff;
}
.btn--default {
  border-color:var(--line);
  color:var(--text-body);
  background:rgba(255,255,255,.02);
}
.btn--default:hover { border-color:var(--gold); color:var(--gold-light); background:rgba(213,164,91,.05); transform:translateY(-2px); }

/* Header + nav */
.site-header {
  position:sticky; top:0; z-index:100;
  background:rgba(6,9,13,.82);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.navbar { min-height:74px; display:flex; align-items:center; justify-content:space-between; }
.brand { display:inline-flex; align-items:center; gap:12px; }
.brand__mark { width:42px; height:42px; color:var(--gold); flex:none; filter:drop-shadow(0 0 12px rgba(213,164,91,.35)); }
.brand__text {
  display:flex; flex-direction:column; justify-content:center;
  font-size:20px; font-weight:800; line-height:1.1;
  color:var(--text-title); letter-spacing:.01em; white-space:nowrap;
}
.brand__text small {
  margin-top:5px;
  font-size:9px; font-weight:500; letter-spacing:.26em;
  color:var(--text-muted); opacity:.78;
}
.main-nav { display:flex; align-items:center; gap:2px; }
.nav-link {
  position:relative;
  display:inline-flex; align-items:center;
  padding:10px 14px;
  border-radius:16px;
  font-size:15px; font-weight:500;
  color:var(--text-body);
  transition:color .2s ease, background .2s ease;
}
.nav-link:hover { color:var(--gold-light); background:rgba(213,164,91,.07); }
.nav-link.is-active { color:var(--gold); font-weight:700; }
.nav-link.is-active::after {
  content:""; position:absolute; left:50%; bottom:3px;
  width:5px; height:5px; border-radius:50%;
  transform:translateX(-50%);
  background:var(--gold);
  box-shadow:0 0 12px var(--gold);
}
.nav-cta { margin-left:12px; height:42px; padding:0 22px; font-size:14px; }
.nav-toggle {
  display:none;
  width:46px; height:46px; padding:0;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.03);
  color:var(--text-title);
  cursor:pointer;
  align-items:center; justify-content:center;
}
.nav-toggle svg { width:22px; height:22px; }

/* Footer */
.site-footer {
  background:var(--void);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  position:relative;
}
.footer-grid {
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(170px,.72fr) minmax(170px,.72fr) minmax(240px,1fr);
  gap:44px;
  padding-bottom:36px;
}
.footer-brand p { font-size:14px; color:var(--text-muted); margin:16px 0 18px; max-width:360px; }
.tag {
  display:inline-flex; align-items:center;
  height:30px; padding:0 13px;
  border-radius:999px;
  font-size:12px; font-weight:500;
  border:1px solid var(--line);
  color:var(--text-muted);
  background:rgba(255,255,255,.025);
}
.tag--dark { border-color:var(--line-soft); color:var(--text-muted); }
.tag--gold { border-color:rgba(213,164,91,.35); color:var(--gold-light); background:rgba(213,164,91,.07); }
.footer-title {
  font-size:14px; margin:0 0 16px;
  color:var(--text-title); letter-spacing:.08em; font-weight:700;
}
.footer-links { display:grid; gap:11px; }
.footer-links a {
  font-size:14px; color:var(--text-muted);
  transition:color .2s ease, padding-left .2s ease;
}
.footer-links a:hover { color:var(--gold-light); padding-left:4px; }
.footer-tip {
  display:flex; gap:12px;
  padding:16px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.018);
  color:var(--text-muted);
  font-size:13px;
}
.footer-tip svg { color:var(--gold); flex:none; margin-top:3px; }
.foot-bottom {
  display:flex; justify-content:space-between; gap:18px;
  flex-wrap:wrap;
  padding-top:24px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--text-muted);
}
.foot-bottom a { color:var(--text-muted); }
.foot-bottom a:hover { color:var(--gold-light); }

/* Hero */
.page-hero {
  position:relative;
  padding:104px 0 72px;
  background:linear-gradient(180deg, rgba(6,9,13,.88) 0%, rgba(6,9,13,.65) 100%),
              url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.page-hero::before {
  content:""; position:absolute; inset:0;
  background:linear-gradient(115deg, rgba(6,9,13,.94) 4%, rgba(6,9,13,.82) 42%, rgba(6,9,13,.5) 75%, rgba(6,9,13,.32) 100%);
  pointer-events:none;
}
.page-hero .container { position:relative; z-index:2; }
.breadcrumb {
  display:flex; align-items:center; gap:8px;
  font-size:13px; color:var(--text-muted);
  margin-bottom:22px;
  letter-spacing:.02em;
}
.breadcrumb a:hover { color:var(--gold-light); }
.breadcrumb span { opacity:.6; }
.page-hero h1 {
  margin:.5rem 0 1rem;
  font-size:clamp(32px,5vw,54px);
  line-height:1.18;
  color:var(--text-title);
  font-weight:900;
  letter-spacing:-.01em;
}
.hero-lead {
  color:var(--gold-light);
  font-size:clamp(18px,2.4vw,22px);
  font-weight:600;
  margin:.4rem 0 .75rem;
}
.hero-desc {
  max-width:680px;
  color:var(--text-body);
  font-size:16px;
}
.hero-actions { display:flex; flex-wrap:wrap; gap:14px; margin-top:32px; }
.hero-check {
  display:flex; flex-wrap:wrap; align-items:center; gap:12px 24px;
  margin-top:38px;
  padding:18px 20px;
  width:fit-content;
  border:1px solid rgba(213,164,91,.18);
  border-radius:var(--radius-sm);
  background:rgba(6,9,13,.42);
}
.hero-check .label { font-size:13px; color:var(--text-muted); text-align:left; }
.hero-check strong { color:var(--gold-light); font-weight:600; font-size:14px; }

/* Page quick strip */
.quick-note { padding:40px 0; border-bottom:1px solid var(--line-soft); }
.quick-note .container {
  display:flex; flex-wrap:wrap; align-items:center; gap:24px 40px;
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:26px 32px;
  background:rgba(17,27,39,.58);
}
.quick-note h3 { font-size:20px; margin:0 0 4px; color:var(--text-title); }
.quick-note p { margin:0; font-size:14px; color:var(--text-muted); }
.quick-note .step-mark {
  display:flex; align-items:center; justify-content:center; flex:none;
  width:54px; height:54px; border-radius:18px;
  border:1px solid rgba(213,164,91,.3);
  color:var(--gold-light);
  background:rgba(213,164,91,.07);
  font-size:22px; font-weight:800;
}

/* Split support section */
.support-section { padding:96px 0 80px; }
.split-layout {
  display:grid;
  grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);
  gap:48px;
  align-items:start;
}
.panel-card {
  background:rgba(17,27,39,.78);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:36px;
  box-shadow:var(--shadow);
}
.panel-card .panel-title { font-size:21px; color:var(--text-title); font-weight:800; margin:.2rem 0 .45rem; }
.panel-card .panel-lead { font-size:14px; color:var(--text-muted); margin-bottom:22px; }
.faq-list { border-top:1px solid var(--line-soft); }
.faq-item { border-bottom:1px solid var(--line-soft); }
.faq-question {
  display:flex; align-items:center; justify-content:space-between; gap:18px;
  width:100%; text-align:left;
  padding:19px 0 17px;
  background:none; border:none;
  cursor:pointer;
  color:var(--text-title);
  font-size:16px; font-weight:600;
  transition:color .2s ease;
}
.faq-question:hover { color:var(--gold-light); }
.faq-qtext { flex:1; }
.faq-icon {
  position:relative; flex:none;
  width:28px; height:28px;
  border:1px solid var(--line);
  border-radius:50%;
  transition:transform .25s ease, border-color .25s ease, background .25s ease;
}
.faq-icon::before, .faq-icon::after {
  content:""; position:absolute; top:50%; left:50%;
  transform:translate(-50%,-50%);
  background:var(--gold);
  border-radius:1px;
  transition:transform .25s ease;
}
.faq-icon::before { width:11px; height:1.6px; }
.faq-icon::after { width:1.6px; height:11px; }
.faq-item.is-open .faq-icon { border-color:var(--gold); background:rgba(213,164,91,.09); }
.faq-item.is-open .faq-icon::after { transform:translate(-50%,-50%) rotate(90deg); }
.faq-answer {
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .3s ease;
}
.faq-answer-inner { overflow:hidden; }
.faq-answer p {
  padding:0 44px 22px 0;
  margin:0;
  color:var(--text-muted);
  font-size:14px;
  line-height:1.85;
}
.faq-item.is-open .faq-answer { grid-template-rows:1fr; }

/* Form card */
.form-card {
  background:linear-gradient(180deg, rgba(23,35,49,.9), rgba(17,27,39,.9));
  border:1px solid rgba(213,164,91,.22);
  border-radius:var(--radius);
  padding:36px;
  box-shadow:var(--shadow);
}
.form-card h3 { font-size:22px; color:var(--text-title); margin:.4rem 0 .3rem; }
.form-card .form-lead { font-size:14px; color:var(--text-muted); margin-bottom:24px; }
.form-row { margin-bottom:18px; }
.form-row label {
  display:block; font-size:14px; color:var(--text-body);
  margin-bottom:8px; font-weight:500;
}
.field {
  width:100%;
  height:48px;
  padding:0 15px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:11px;
  color:var(--text-title);
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
textarea.field { height:auto; padding:13px 15px; resize:vertical; min-height:112px; }
.field::placeholder { color:#5d6a7a; }
.field:hover { border-color:rgba(213,164,91,.35); }
.field:focus {
  outline:none;
  border-color:var(--gold);
  box-shadow:0 0 0 3px rgba(213,164,91,.13);
  background:rgba(255,255,255,.06);
}
select.field option { background:var(--raised); color:var(--text-body); }
.check-row {
  display:flex; align-items:flex-start; gap:10px;
  font-size:13px; color:var(--text-muted);
  margin:8px 0 22px;
}
.check-row input { margin-top:5px; accent-color:var(--gold); }
.form-privacy { margin-top:12px; font-size:12px; color:var(--text-muted); }
.form-success {
  display:none;
  margin-top:18px; padding:14px 16px;
  border:1px solid rgba(124,200,193,.3);
  border-radius:10px;
  background:rgba(124,200,193,.06);
  color:var(--cyan-dim);
  font-size:14px;
}
.form-success.is-show { display:block; }

/* Contact channel section */
.contact-wrap { padding:40px 0 96px; }
.contact-grid {
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:stretch;
}
.channel-info {
  border:1px solid var(--line-soft);
  background:var(--surface);
  border-radius:var(--radius);
  padding:36px;
}
.channel-info h2 { font-size:clamp(22px,3vw,29px); color:var(--text-title); margin:.2rem 0 .9rem; font-weight:800; }
.channel-row { display:flex; gap:14px; align-items:flex-start; padding:16px 0; border-bottom:1px solid var(--line-soft); }
.channel-row:last-child { border-bottom:none; }
.channel-icon {
  flex:none; width:38px; height:38px;
  display:flex; align-items:center; justify-content:center;
  border-radius:12px;
  border:1px solid rgba(213,164,91,.3);
  background:rgba(213,164,91,.06);
  color:var(--gold-light);
}
.channel-txt h4 { font-size:16px; color:var(--text-title); margin:0 0 3px; font-weight:700; }
.channel-txt p { margin:0; font-size:14px; color:var(--text-muted); }
.security-note {
  border:1px solid rgba(210,118,109,.28);
  background:rgba(210,118,109,.05);
  border-radius:var(--radius);
  padding:28px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.security-note .note-mark { width:48px; height:48px; margin-bottom:14px; color:var(--danger); }
.security-note h3 { font-size:19px; color:var(--text-title); margin:0 0 10px; }
.security-note p { font-size:14px; color:var(--text-muted); margin-bottom:0; }
.security-note li { position:relative; padding-left:16px; margin-top:8px; font-size:13px; color:var(--text-muted); }
.security-note li::before { content:""; position:absolute; left:2px; top:9px; width:4px; height:4px; border-radius:50%; background:var(--danger); }

/* Process section */
.process-section { padding:96px 0; background:var(--base); border-top:1px solid var(--line-soft); }
.process-grid {
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:56px;
  align-items:center;
}
.process-list { counter-reset:step; }
.process-step {
  counter-increment:step;
  display:flex; gap:20px;
  padding:22px 0;
  border-bottom:1px solid var(--line-soft);
}
.process-step:last-child { border-bottom:none; }
.process-num {
  position:relative; flex:none;
  width:42px; height:42px;
  border-radius:50%;
  background:rgba(213,164,91,.1);
  border:1px solid rgba(213,164,91,.35);
  color:var(--gold-light);
  display:flex; align-items:center; justify-content:center;
  font-size:12px; font-weight:800;
}
.process-num::before { counter-increment:step; content:counter(step) ""; }
.process-body h4 { margin:0 0 4px; color:var(--text-title); font-size:17px; font-weight:700; }
.process-body p { margin:0; color:var(--text-muted); font-size:14px; max-width:520px; }
.process-media { position:relative; }
.process-media img { width:100%; aspect-ratio:4/3.2; object-fit:cover; border-radius:var(--radius); border:1px solid var(--line-soft); background:var(--raised); box-shadow:var(--shadow); }
.process-media-caption {
  position:absolute; left:16px; bottom:16px; right:16px;
  background:rgba(6,9,13,.72);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.1);
  color:#e8f0f8;
  padding:10px 14px;
  border-radius:11px;
  font-size:12px;
  letter-spacing:.03em;
}

/* CTA banner */
.cta-banner {
  position:relative;
  padding:96px 0;
  text-align:center;
  background:
    linear-gradient(180deg, rgba(6,9,13,.92) 0%, rgba(11,17,26,.74) 100%),
    url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.cta-banner .inner { position:relative; z-index:2; max-width:760px; margin:0 auto; padding:0 24px; }
.cta-banner h2 { font-size:clamp(26px,4.6vw,44px); color:var(--text-title); font-weight:900; line-height:1.3; margin:0 0 14px; }
.cta-banner p { color:var(--text-muted); font-size:16px; margin-bottom:30px; }
.cta-banner .cta-actions { display:flex; justify-content:center; gap:14px; flex-wrap:wrap; }

@media (max-width:1023px) {
  .site-header .navbar { min-height:68px; }
  .nav-toggle { display:inline-flex; }
  .main-nav {
    position:fixed; top:0; right:0; bottom:0;
    width:min(86vw,420px);
    height:100dvh;
    padding:110px 36px 40px;
    flex-direction:column;
    align-items:flex-start;
    background:rgba(6,9,13,.96);
    border-left:1px solid var(--line);
    transform:translateX(102%);
    visibility:hidden;
    opacity:0;
    transition:transform .3s ease, opacity .3s ease, visibility .3s ease;
    overflow-y:auto;
    z-index:999;
  }
  .main-nav.opened { transform:translateX(0); visibility:visible; opacity:1; }
  .main-nav .nav-link { width:100%; font-size:19px; padding:14px 12px; border-radius:14px; }
  .nav-cta { width:100%; margin:22px 0 0; justify-content:center; }
  .split-layout, .contact-grid { grid-template-columns:1fr; gap:36px; }
  .process-grid { grid-template-columns:1fr; gap:40px; }
  .footer-grid { grid-template-columns:1fr 1fr; row-gap:40px; }
}

@media (max-width:767px) {
  .section, .support-section { padding:64px 0 52px; }
  .page-hero { padding:72px 0 52px; }
  .container { width:min(100% - 30px, 1240px); }
  .section-head h2 { font-size:27px; }
  .hero-actions { flex-direction:column; align-items:stretch; }
  .hero-actions .btn { width:100%; }
  .panel-card, .form-card, .channel-info, .security-note { padding:24px 20px; }
  .security-note { margin-top:-6px; }
  .footer-grid { grid-template-columns:1fr; row-gap:34px; }
  .quick-note .container { padding:22px 20px; }
  .step-mark { margin-bottom:4px; }
}

@media (max-width:520px) {
  body { font-size:15px; }
  .brand__text { font-size:17px; }
  .brand__text small { font-size:8px; letter-spacing:.17em; }
  .brand__mark { width:36px; height:36px; }
  .page-hero h1 { font-size:30px; }
  .hero-desc { font-size:15px; }
  .hero-check { align-items:flex-start; gap:10px; }
  .faq-question { font-size:15px; }
  .faq-answer p { padding-right:12px; }
  .cta-actions { flex-direction:column; align-items:stretch; }
  .cta-actions .btn { width:100%; }
  .process-step { flex-direction:column; padding:20px 0; }
}