/* roulang page: index */
:root{
  --ink-950:#05070D;
  --ink-900:#0A0F1C;
  --ink-800:#111A2E;
  --line:rgba(255,255,255,.10);
  --gold:#F2B01E;
  --gold-deep:#C98A05;
  --gold-light:#FFD470;
  --cyan:#2FE3C4;
  --flame:#FF5A36;
  --text-hi:#F2F6FF;
  --text-mid:#A9B6CC;
  --text-low:#6C7A93;
  --r-xl:22px;
  --r-lg:18px;
  --r-img:14px;
  --r-sm:12px;
  --shadow-card:0 20px 45px -22px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
.site-body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-mid);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{display:block;max-width:100%}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
::selection{background:rgba(242,176,30,.32);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--ink-950)}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(242,176,30,.45)}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:1024px){.wrap{padding-left:32px;padding-right:32px}}

.section{padding-block:56px}
@media(min-width:768px){.section{padding-block:72px}}
@media(min-width:1024px){.section{padding-block:96px}}

.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.12em;color:var(--gold);font-weight:600}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--gold);display:block}
.section-title{font-size:clamp(26px,3.2vw,36px);line-height:1.25;font-weight:700;color:var(--text-hi);letter-spacing:-.01em}
.section-desc{font-size:15.5px;color:var(--text-mid);max-width:58ch;margin-top:14px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px}
.micro{font-size:12px;letter-spacing:.12em;color:var(--text-low)}

.glass{
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
}
.card{transition:transform 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(242,176,30,.45);background:rgba(255,255,255,.07)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;white-space:nowrap;transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease)}
.btn-gold{background:linear-gradient(180deg,#F7C24A,var(--gold));color:#1A1206;box-shadow:0 0 0 1px rgba(242,176,30,.55),0 10px 30px -8px rgba(242,176,30,.45)}
.btn-gold:hover{transform:translateY(-1px);filter:brightness(1.07);box-shadow:0 0 0 1px rgba(242,176,30,.8),0 18px 40px -8px rgba(242,176,30,.6)}
.btn-gold:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(242,176,30,.5),0 6px 18px -8px rgba(242,176,30,.5)}
.btn-ghost{background:rgba(255,255,255,.05);border-color:rgba(242,176,30,.45);color:var(--gold);backdrop-filter:blur(14px)}
.btn-ghost:hover{background:rgba(242,176,30,.08);border-color:var(--gold);color:var(--gold-light);transform:translateY(-1px)}
.btn-sm{padding:9px 20px;font-size:14px}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--gold);font-size:14.5px;font-weight:600;transition:color 220ms var(--ease)}
.text-link svg{transition:transform 220ms var(--ease)}
.text-link:hover{color:var(--gold-light)}
.text-link:hover svg{transform:translateX(4px)}

/* ============ 导航 ============ */
.site-header{position:fixed;inset:0 0 auto 0;z-index:60;border-bottom:1px solid transparent;transition:background 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease)}
.site-header.is-scrolled{background:rgba(10,15,28,.8);backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);border-bottom-color:var(--line);box-shadow:0 12px 32px -24px rgba(0,0,0,.95)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:50%;background:rgba(242,176,30,.08);box-shadow:0 0 20px -6px rgba(242,176,30,.8)}
.brand-text{font-size:17px;font-weight:800;color:var(--text-hi);letter-spacing:.01em;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:2px}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--text-mid);transition:color 220ms var(--ease)}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--gold);transform:scaleX(0);transform-origin:left center;transition:transform 220ms var(--ease)}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--gold)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-mid);transition:color 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease)}
.icon-btn:hover{color:var(--gold);border-color:rgba(242,176,30,.5);background:rgba(242,176,30,.08)}
.nav-cta{display:none}
.hamburger{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-hi);transition:border-color 220ms var(--ease),color 220ms var(--ease)}
.hamburger:hover{border-color:rgba(242,176,30,.5);color:var(--gold)}
@media(min-width:1024px){
  .nav-links{display:flex}
  .nav-cta{display:inline-flex}
  .hamburger{display:none}
  .nav-inner{height:78px}
}
.search-panel{position:absolute;left:0;right:0;top:100%;max-height:0;overflow:hidden;background:rgba(10,15,28,.96);backdrop-filter:blur(16px) saturate(120%);border-bottom:1px solid transparent;transition:max-height 280ms var(--ease),border-color 280ms var(--ease)}
.search-panel.is-open{max-height:140px;border-bottom-color:var(--line)}
.search-form{display:flex;gap:12px;padding-top:16px;padding-bottom:18px}
.search-form input{flex:1;min-width:0;padding:12px 16px;border-radius:12px;background:#0C1220;border:1px solid var(--line);color:var(--text-hi);font-size:15px;font-family:inherit}
.search-form input::placeholder{color:var(--text-low)}
.search-form input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(242,176,30,.15)}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:80;display:flex;flex-direction:column;padding:18px 20px 24px;background:rgba(5,7,13,.95);backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);transform:translateY(-100%);opacity:0;pointer-events:none;transition:transform 300ms var(--ease),opacity 240ms var(--ease)}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:8px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:56px;font-size:18px;color:var(--text-hi);border-bottom:1px solid var(--line)}
.drawer-link.is-active{color:var(--gold)}
.drawer-link span:last-child{color:var(--text-low);font-size:15px}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-foot .btn{width:100%}
@media(min-width:1024px){.drawer{display:none}}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding-top:112px;padding-bottom:64px;background:radial-gradient(circle at 12% 6%,rgba(242,176,30,.16),transparent 46%),radial-gradient(circle at 88% 74%,rgba(47,227,196,.10),transparent 52%),var(--ink-950)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(circle at 50% 26%,#000 0%,transparent 72%);mask-image:radial-gradient(circle at 50% 26%,#000 0%,transparent 72%);opacity:.55}
@media(min-width:1024px){.hero{padding-top:156px;padding-bottom:104px}}
.hero-grid{position:relative;z-index:1;display:grid;gap:44px}
@media(min-width:1024px){.hero-grid{grid-template-columns:6fr 5fr;gap:56px;align-items:center}}
.hero h1{font-size:clamp(32px,5vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.01em;color:var(--text-hi);margin-top:18px}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero-sub{font-size:16.5px;line-height:1.85;color:var(--text-mid);max-width:46ch;margin-top:20px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.hero-stats strong{display:block;font-family:ui-monospace,"DIN Alternate",monospace;font-size:24px;font-weight:700;color:var(--cyan);letter-spacing:.02em;line-height:1.3}
.hero-stats span{display:block;font-size:12px;letter-spacing:.12em;color:var(--text-low)}
.hero-visual{position:relative;padding-bottom:26px}
.img-frame{position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);background:var(--ink-800);box-shadow:var(--shadow-card);aspect-ratio:4/3.3}
.img-frame img{width:100%;height:100%;object-fit:cover}
.img-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(5,7,13,.85))}
.data-card{position:absolute;right:14px;bottom:-6px;width:min(280px,86%);padding:16px 18px;border-radius:var(--r-lg)}
.data-card .micro{color:var(--text-mid)}
.bar{position:relative;height:8px;border-radius:999px;background:rgba(255,255,255,.08)}
.bar-fill{position:relative;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold-deep),var(--gold))}
.bar-fill::after{content:"";position:absolute;top:50%;right:0;width:10px;height:10px;border-radius:50%;background:var(--gold);transform:translate(50%,-50%);box-shadow:0 0 12px 2px rgba(242,176,30,.75)}
.data-stats{display:flex;gap:22px;margin-top:16px}
.data-stats strong{display:block;font-family:ui-monospace,"DIN Alternate",monospace;font-size:17px;color:var(--text-hi);line-height:1.4}
.data-stats span{display:block;font-size:11.5px;letter-spacing:.1em;color:var(--text-low)}
@media(max-width:1023px){
  .data-card{position:static;width:100%;margin-top:16px}
  .hero-visual{padding-bottom:0}
}

/* ============ 玩法 ============ */
.play-grid{display:grid;gap:32px;margin-top:44px}
@media(min-width:1024px){.play-grid{grid-template-columns:.82fr 1.18fr;gap:56px;align-items:start}}
.play-sticky{position:static}
@media(min-width:1024px){.play-sticky{position:sticky;top:110px}}
.play-item{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:22px 10px;border-top:1px solid var(--line);transition:background 220ms var(--ease)}
.play-item:last-child{border-bottom:1px solid var(--line)}
.play-item:hover{background:rgba(255,255,255,.03)}
.play-num{font-family:ui-monospace,"DIN Alternate",monospace;font-size:clamp(32px,4.2vw,54px);font-weight:800;line-height:1;letter-spacing:.02em;color:transparent;-webkit-text-stroke:1px rgba(242,176,30,.72)}
.play-body h3{font-size:20px;font-weight:600;color:var(--text-hi);line-height:1.4}
.play-body p{font-size:14.5px;line-height:1.7;color:var(--text-mid);margin-top:6px}
.play-arrow{color:var(--text-low);transition:transform 220ms var(--ease),color 220ms var(--ease)}
.play-item:hover .play-arrow{transform:translateX(4px);color:var(--gold)}

/* ============ 奖励阶梯 ============ */
.tier-grid{display:grid;gap:20px;margin-top:44px;align-items:stretch}
@media(min-width:768px){
  .tier-grid{grid-template-columns:repeat(3,1fr);gap:24px}
  .tier:nth-child(1){margin-top:32px}
  .tier:nth-child(3){margin-top:16px}
}
.tier{position:relative;padding:28px 24px 26px;border-radius:var(--r-xl);border:1px solid var(--line);background:rgba(255,255,255,.04);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);transition:transform 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease)}
.tier:hover{transform:translateY(-4px);border-color:rgba(242,176,30,.45);background:rgba(255,255,255,.07)}
.tier.is-featured{border-color:rgba(242,176,30,.55);background:linear-gradient(180deg,rgba(242,176,30,.10),rgba(255,255,255,.04));box-shadow:0 0 0 1px rgba(242,176,30,.28),0 26px 60px -30px rgba(242,176,30,.55)}
.tier-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;border:1px solid rgba(242,176,30,.35);background:rgba(242,176,30,.10);color:var(--gold);margin-bottom:18px}
.tier h3{font-size:22px;font-weight:600;color:var(--text-hi)}
.tier-sub{font-size:13px;letter-spacing:.1em;color:var(--text-low);margin-top:6px}
.tier-list{margin-top:20px}
.tier-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;line-height:1.7;color:var(--text-mid);padding:7px 0}
.tier-list svg{flex-shrink:0;margin-top:5px;color:var(--cyan)}
.tier .btn{width:100%;margin-top:22px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;letter-spacing:.06em;line-height:1.7;white-space:nowrap}
.badge-gold{color:var(--gold);border:1px solid rgba(242,176,30,.5);background:rgba(242,176,30,.08)}
.badge-cyan{color:var(--cyan);border:1px solid rgba(47,227,196,.45);background:rgba(47,227,196,.10)}
.badge-flame{color:#FFD3C7;border:1px solid rgba(255,90,54,.5);background:rgba(255,90,54,.16)}
.badge-muted{color:var(--text-low);border:1px solid var(--line);background:rgba(255,255,255,.04)}
.tier-badge{position:absolute;top:-13px;left:24px}

/* ============ 任务面板 ============ */
.task-panel{display:grid;gap:32px;padding:30px 24px;border-radius:var(--r-xl);margin-top:44px}
@media(min-width:1024px){.task-panel{grid-template-columns:.92fr 1.08fr;gap:48px;padding:44px;align-items:center}}
.task-list{margin-top:24px}
.task-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:16px 0;border-top:1px solid var(--line)}
.task-row:last-child{border-bottom:1px solid var(--line)}
.task-row h3{font-size:15.5px;font-weight:600;color:var(--text-hi)}
.task-row p{font-size:13.5px;color:var(--text-low);margin-top:2px}
.task-right{display:flex;align-items:center;gap:20px}
.ring{position:relative;width:88px;height:88px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--gold) 0 68%,rgba(255,255,255,.08) 68% 100%);flex-shrink:0}
.ring::before{content:"";position:absolute;inset:8px;border-radius:50%;background:var(--ink-900)}
.ring span{position:relative;font-family:ui-monospace,"DIN Alternate",monospace;font-size:18px;font-weight:700;color:var(--text-hi)}
.ring-note{font-size:12px;letter-spacing:.1em;color:var(--text-low);margin-top:10px;text-align:center}

/* ============ 资讯 ============ */
.news-grid{display:grid;gap:20px;margin-top:40px}
@media(min-width:1024px){.news-grid{grid-template-columns:1.22fr 1fr;gap:28px;align-items:start}}
.news-feature{border-radius:var(--r-xl);border:1px solid var(--line);background:rgba(255,255,255,.05);overflow:hidden;transition:transform 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease)}
.news-feature:hover{transform:translateY(-4px);border-color:rgba(242,176,30,.45);background:rgba(255,255,255,.07)}
.news-feature-img{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-800);border-bottom:1px solid var(--line)}
.news-feature-img img{width:100%;height:100%;object-fit:cover}
.news-feature-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(5,7,13,.85))}
.news-feature-body{padding:22px 24px 24px}
.news-feature-title{font-size:21px;font-weight:600;line-height:1.5;color:var(--text-hi);margin-top:14px}
.news-feature-desc{font-size:14.5px;line-height:1.75;color:var(--text-mid);margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-low);font-family:ui-monospace,"DIN Alternate",monospace;letter-spacing:.02em}
.news-side{display:flex;flex-direction:column}
.news-row{display:block;padding:20px 10px;border-top:1px solid var(--line);transition:background 220ms var(--ease)}
.news-row:last-child{border-bottom:1px solid var(--line)}
.news-row:hover{background:rgba(255,255,255,.03)}
.news-row-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.news-row-date{font-size:12.5px;color:var(--text-low);font-family:ui-monospace,"DIN Alternate",monospace;letter-spacing:.02em}
.news-row-title{font-size:16.5px;font-weight:600;line-height:1.6;color:var(--text-hi);margin-top:10px;transition:color 220ms var(--ease)}
.news-row:hover .news-row-title{color:var(--gold)}
.news-arrow{display:inline-flex;margin-top:10px;color:var(--text-low);transition:transform 220ms var(--ease),color 220ms var(--ease)}
.news-row:hover .news-arrow{transform:translateX(4px);color:var(--gold)}
.news-empty{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:56px 24px;border-radius:var(--r-xl);margin-top:40px}
.news-empty svg{color:var(--text-low)}
.news-empty-title{font-size:16px;font-weight:600;color:var(--text-hi)}
.news-empty-desc{font-size:14px;color:var(--text-low)}

/* ============ FAQ ============ */
.faq-list{margin-top:40px;max-width:920px}
.faq-item{border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(255,255,255,.05);backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);transition:border-color 220ms var(--ease),background 220ms var(--ease)}
.faq-item + .faq-item{margin-top:12px}
.faq-item.is-open{border-color:rgba(242,176,30,.42);background:rgba(255,255,255,.07)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text-hi);transition:color 220ms var(--ease)}
.faq-item.is-open .faq-q{color:var(--gold)}
.faq-icon{flex-shrink:0;color:var(--gold);transition:transform 200ms var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-mid)}

/* ============ 收尾 CTA ============ */
.cta-band{position:relative;padding-block:56px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:radial-gradient(circle at 50% -20%,rgba(242,176,30,.14),transparent 70%),var(--ink-900);text-align:center}
@media(min-width:1024px){.cta-band{padding-block:80px}}
.cta-inner{max-width:720px;margin:0 auto}
.cta-inner h2{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--text-hi);line-height:1.3;letter-spacing:-.01em}
.cta-inner p{font-size:15.5px;color:var(--text-mid);margin-top:14px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:20px;margin-top:30px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-950);border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;gap:36px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:40px}}
.footer-title{font-size:12px;letter-spacing:.12em;color:var(--text-low);margin-bottom:16px;font-weight:600}
.footer-text{font-size:14.5px;line-height:1.8;color:var(--text-mid);margin-top:16px;max-width:34ch}
.footer-link{display:block;padding:7px 0;font-size:14.5px;color:var(--text-mid);transition:color 220ms var(--ease)}
.footer-link:hover{color:var(--gold)}
.footer-note{font-size:14px;color:var(--text-mid);line-height:1.8}
.footer-note strong{color:var(--text-hi);font-weight:600}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:24px 0 28px;margin-top:48px;border-top:1px solid var(--line);font-size:13px;color:var(--text-low)}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ink-950:#05070D;
  --ink-900:#0A0F1C;
  --ink-800:#111A2E;
  --ink-700:#0C1220;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --gold:#F2B01E;
  --gold-bright:#F7C24A;
  --gold-deep:#C98A05;
  --cyan:#2FE3C4;
  --flame:#FF5A36;
  --text-hi:#F2F6FF;
  --text-mid:#A9B6CC;
  --text-low:#6C7A93;
  --radius-xl:22px;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 20px 45px -22px rgba(0,0,0,.85);
  --shadow-soft:0 1px 0 rgba(255,255,255,.06) inset;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"DIN Alternate","SF Mono",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-hi);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
input,textarea,select{font:inherit;color:inherit}
::selection{background:rgba(242,176,30,.32);color:#fff}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.wrap{padding:0 32px}}
.mono{font-family:var(--font-mono);letter-spacing:.02em}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  border-bottom:1px solid transparent;
  background:transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(10,15,28,.74);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -24px rgba(0,0,0,.95);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:rgba(242,176,30,.10);border:1px solid rgba(242,176,30,.28);
  box-shadow:0 0 0 1px rgba(255,255,255,.04) inset;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px}
}
.nav-link{
  position:relative;display:inline-block;padding:10px 12px;border-radius:10px;
  font-size:15px;color:var(--text-mid);
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--gold)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:none;place-items:center;width:42px;height:42px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text-mid);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
@media (min-width:1024px){.icon-btn{display:grid}}
.icon-btn:hover{color:var(--gold);border-color:rgba(242,176,30,.45);background:rgba(242,176,30,.08)}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex}}
.burger{
  display:grid;place-items:center;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text-hi);
}
@media (min-width:1024px){.burger{display:none}}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(5,7,13,.92);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
}
.drawer.is-open{display:flex;flex-direction:column}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:74px;padding:0 20px;border-bottom:1px solid var(--line)}
.drawer-close{
  display:grid;place-items:center;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);color:var(--text-hi);background:rgba(255,255,255,.05);
}
.drawer-nav{padding:8px 20px 20px;flex:1;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:18px;line-height:56px;color:var(--text-mid);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--gold)}
.drawer-bottom{padding:16px 20px 28px;border-top:1px solid var(--line)}
.drawer-bottom .btn{width:100%}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .24s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-gold{
  background:linear-gradient(180deg,var(--gold-bright),var(--gold));
  color:#1A1204;
  box-shadow:0 0 0 1px rgba(242,176,30,.55),0 10px 30px -8px rgba(242,176,30,.45);
}
.btn-gold:hover{
  transform:translateY(-1px);
  filter:brightness(1.07);
  box-shadow:0 0 0 1px rgba(242,176,30,.78),0 16px 40px -8px rgba(242,176,30,.6);
}
.btn-gold:active{
  transform:translateY(0);
  box-shadow:0 0 0 1px rgba(242,176,30,.6),0 6px 16px -8px rgba(242,176,30,.5);
}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(242,176,30,.45);
  color:var(--text-hi);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-soft);
}
.btn-ghost:hover{background:rgba(242,176,30,.08);border-color:var(--gold);color:#FFD98A}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--gold);
  transition:color .2s var(--ease);
}
.link-arrow .arw{transition:transform .2s var(--ease)}
.link-arrow:hover{color:#FFD98A}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ===== 阅读进度 ===== */
.read-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:130;background:transparent;pointer-events:none}
.read-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold-deep),var(--gold),var(--cyan));box-shadow:0 0 12px rgba(242,176,30,.6);transition:width .1s linear}

/* ===== 文章头 ===== */
.article-hero{position:relative;padding:118px 0 0;overflow:hidden;background:var(--ink-950)}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(680px 420px at 10% -6%,rgba(242,176,30,.16),transparent 72%),
    radial-gradient(560px 380px at 92% 6%,rgba(47,227,196,.10),transparent 74%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(to right,var(--text-hi) 1px,transparent 1px),linear-gradient(to bottom,var(--text-hi) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 50% 0%,#000,transparent 78%);
}
.article-hero .wrap{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12.5px;color:var(--text-low);margin-bottom:26px}
.breadcrumb a{color:var(--text-low);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--text-hi)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:var(--text-mid);min-width:0;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 14px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;font-weight:600;line-height:1;
}
.badge-gold{color:var(--gold);border:1px solid rgba(242,176,30,.55);background:rgba(242,176,30,.08)}
.badge-cyan{color:var(--cyan);background:rgba(47,227,196,.14);border:1px solid rgba(47,227,196,.32)}
.badge-flame{color:#FFD3C8;background:rgba(255,90,54,.18);border:1px solid rgba(255,90,54,.45)}
.article-head h1{
  margin-top:18px;
  font-size:clamp(28px,4.6vw,40px);
  line-height:1.24;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-hi);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  margin-top:20px;font-size:13px;color:var(--text-low);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-low);opacity:.7}
.article-meta .mono{color:var(--text-mid)}
.article-divider{height:1px;background:var(--line);margin:26px 0 0}

/* ===== 正文 ===== */
.article-main{position:relative;padding:0 0 72px;background:var(--ink-950)}
.article-shell{max-width:760px;margin:0 auto;padding-top:34px}
.article-body{
  color:#DCE5F5;
  font-size:16.5px;
  line-height:1.95;
  overflow-wrap:break-word;
}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{
  margin-top:2.2em;
  padding-left:12px;
  border-left:4px solid var(--gold);
  font-size:clamp(20px,2.4vw,26px);
  line-height:1.4;
  font-weight:700;
  color:var(--text-hi);
}
.article-body h3{
  margin-top:1.8em;
  font-size:20px;
  font-weight:600;
  line-height:1.5;
  color:var(--text-hi);
}
.article-body h4{margin-top:1.6em;font-size:17px;font-weight:600;color:var(--text-hi)}
.article-body ul{margin:1.2em 0;padding-left:0}
.article-body ul > li{position:relative;padding-left:20px;margin:.55em 0}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:2px;background:var(--gold);
}
.article-body ol{margin:1.2em 0;padding-left:0;counter-reset:artol}
.article-body ol > li{position:relative;padding-left:30px;margin:.6em 0;counter-increment:artol}
.article-body ol > li::before{
  content:counter(artol);
  position:absolute;left:0;top:.34em;
  display:grid;place-items:center;width:20px;height:20px;border-radius:50%;
  background:rgba(47,227,196,.14);color:var(--cyan);
  font-family:var(--font-mono);font-size:12px;line-height:1;
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  border-left:3px solid var(--gold);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:rgba(255,255,255,.04);
  color:var(--text-mid);
}
.article-body blockquote p{margin:0}
.article-body figure{margin:1.7em 0}
.article-body img{
  width:100%;height:auto;border-radius:var(--radius-md);
  border:1px solid var(--line);background:var(--ink-800);
}
.article-body figcaption{margin-top:12px;text-align:center;font-size:13px;color:var(--text-low)}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(47,227,196,.35);transition:color .2s var(--ease),border-color .2s var(--ease)}
.article-body a:hover{color:#8FF6E4;border-bottom-color:var(--cyan)}
.article-body strong{color:#FFFFFF;font-weight:700}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;display:block;overflow-x:auto;white-space:nowrap}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:rgba(255,255,255,.05);color:var(--text-hi);font-weight:600}
.article-body code{
  padding:2px 6px;border-radius:6px;background:rgba(47,227,196,.12);
  color:var(--cyan);font-family:var(--font-mono);font-size:.92em;
}

/* 正文内 CTA 玻璃卡 */
.inline-cta{
  position:relative;
  margin-top:44px;
  padding:28px;
  border-radius:var(--radius-xl);
  border:1px solid rgba(242,176,30,.36);
  background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card),var(--shadow-soft);
  overflow:hidden;
}
.inline-cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 220px at 88% -20%,rgba(242,176,30,.18),transparent 70%);
}
.inline-cta > *{position:relative;z-index:1}
.inline-cta h2{
  font-size:clamp(20px,2.4vw,24px);line-height:1.4;font-weight:700;color:var(--text-hi);
}
.inline-cta p{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--text-mid)}
.inline-cta .cta-actions{margin-top:20px;display:flex;flex-wrap:wrap;gap:12px}

/* 空态 */
.empty-panel{
  padding:48px 28px;text-align:center;
  border-radius:var(--radius-xl);border:1px dashed rgba(255,255,255,.18);
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);
}
.empty-panel .empty-icon{
  display:grid;place-items:center;width:56px;height:56px;margin:0 auto 16px;
  border-radius:16px;border:1px solid rgba(242,176,30,.32);background:rgba(242,176,30,.10);color:var(--gold);
}
.empty-panel h2{font-size:20px;font-weight:700;color:var(--text-hi)}
.empty-panel p{margin-top:10px;font-size:14.5px;color:var(--text-mid)}
.empty-panel .btn{margin-top:22px}

/* ===== 继续了解 ===== */
.more-section{padding:0 0 88px;background:var(--ink-950)}
.more-shell{max-width:860px;margin:0 auto}
.section-eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--text-low);text-transform:uppercase;
}
.more-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:8px}
.more-head h2{font-size:clamp(20px,2.6vw,26px);font-weight:700;color:var(--text-hi);margin-top:8px}
.more-list{margin-top:16px;border-top:1px solid var(--line)}
.more-item{
  display:flex;align-items:center;gap:16px;
  padding:18px 6px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease),padding-left .2s var(--ease);
}
.more-item:hover{background:rgba(255,255,255,.03);padding-left:12px}
.more-item .mi-title{font-size:16px;font-weight:600;color:var(--text-hi);line-height:1.5}
.more-item .mi-sub{margin-top:4px;font-size:12.5px;color:var(--text-low)}
.more-item .mi-time{margin-left:auto;font-family:var(--font-mono);font-size:12px;color:var(--text-low);white-space:nowrap}
.more-item .mi-arw{color:var(--gold);flex-shrink:0;transition:transform .2s var(--ease)}
.more-item:hover .mi-arw{transform:translateX(4px)}
.back-link{margin-top:28px}

/* ===== 收尾 CTA ===== */
.closing{padding:88px 0;background:var(--ink-900);border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.closing::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(560px 300px at 50% 120%,rgba(242,176,30,.16),transparent 72%);
}
.closing .inner{position:relative;z-index:1;max-width:720px;margin:0 auto;text-align:center}
.closing h2{font-size:clamp(24px,3.4vw,32px);line-height:1.3;font-weight:800;color:var(--text-hi)}
.closing p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--text-mid)}
.closing .row{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-950);padding:72px 0 28px;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr .8fr .8fr 1fr;gap:32px}}
.site-footer .brand{margin-bottom:16px}
.footer-text{font-size:14px;line-height:1.8;color:var(--text-mid);max-width:34ch}
.footer-title{font-size:12px;letter-spacing:.12em;color:var(--text-low);margin-bottom:14px;font-weight:600}
.footer-link{display:block;font-size:14px;color:var(--text-mid);padding:6px 0;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-link:hover{color:var(--gold);transform:translateX(3px)}
.footer-note{font-size:13.5px;color:var(--text-mid);line-height:1.8;margin-bottom:8px}
.footer-note strong{color:var(--text-hi);font-weight:600}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:12.5px;color:var(--text-low);
}
@media (max-width:519px){
  .article-hero{padding-top:104px}
  .article-meta{font-size:12.5px}
  .inline-cta{padding:22px}
  .empty-panel{padding:36px 20px}
  .closing{padding:64px 0}
  .site-footer{padding-top:56px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
    --ink-950:#05070D;
    --ink-900:#0A0F1C;
    --ink-800:#111A2E;
    --line:rgba(255,255,255,.10);
    --gold:#F2B01E;
    --gold-deep:#C98A05;
    --cyan:#2FE3C4;
    --flame:#FF5A36;
    --text-hi:#F2F6FF;
    --text-mid:#A9B6CC;
    --text-low:#6C7A93;
    --r-xl:22px;
    --r-lg:18px;
    --r-md:14px;
    --r-sm:12px;
    --shadow-card:0 20px 45px -22px rgba(0,0,0,.85);
    --glass-bg:rgba(255,255,255,.05);
    --glass-hi:inset 0 1px 0 rgba(255,255,255,.08);
    --ease:cubic-bezier(.2,.7,.3,1);
    --pad:20px;
    --section-y:60px;
  }
  @media (min-width:1024px){
    :root{ --pad:32px; --section-y:96px; }
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--ink-950);
    color:var(--text-hi);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.no-scroll{ overflow:hidden; }
  img{ display:block; max-width:100%; }
  a{ color:inherit; text-decoration:none; }
  button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
  h1,h2,h3,h4,p,figure,blockquote{ margin:0; }
  ul,ol{ list-style:none; margin:0; padding:0; }
  :focus-visible{ outline:2px solid var(--gold); outline-offset:2px; border-radius:4px; }
  ::selection{ background:rgba(242,176,30,.28); color:#fff; }
  ::-webkit-scrollbar{ width:10px; height:10px; }
  ::-webkit-scrollbar-track{ background:#070A12; }
  ::-webkit-scrollbar-thumb{ background:#1B2438; border-radius:999px; border:2px solid #070A12; }
  ::-webkit-scrollbar-thumb:hover{ background:#2A3652; }

  .wrap{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:var(--pad);
    padding-right:var(--pad);
  }
  .section{ padding:var(--section-y) 0; position:relative; }
  .section--alt{ background:var(--ink-900); }
  .section--line-top{ border-top:1px solid var(--line); }

  /* ============ 头部导航 ============ */
  .site-header{
    position:fixed; top:0; left:0; right:0; z-index:80;
    border-bottom:1px solid transparent;
    transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(5,7,13,.76);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    border-bottom-color:var(--line);
    box-shadow:0 14px 34px -26px rgba(0,0,0,.95);
  }
  .header-inner{
    display:flex; align-items:center; justify-content:space-between;
    gap:20px; height:74px;
  }
  .brand{ display:inline-flex; align-items:center; gap:10px; flex-shrink:0; }
  .brand-mark{
    display:inline-flex; align-items:center; justify-content:center;
    width:38px; height:38px; border-radius:999px;
    background:rgba(242,176,30,.10);
    border:1px solid rgba(242,176,30,.28);
    box-shadow:var(--glass-hi);
  }
  .brand-text{ font-size:17px; font-weight:800; letter-spacing:.01em; color:var(--text-hi); }
  .nav-links{ display:none; align-items:center; gap:26px; }
  @media (min-width:1024px){ .nav-links{ display:flex; } }
  .nav-link{
    position:relative; display:inline-block;
    font-size:15px; line-height:1.6; color:var(--text-mid);
    padding:6px 0; transition:color .22s var(--ease);
  }
  .nav-link::after{
    content:""; position:absolute; left:0; bottom:0; height:2px; width:0;
    background:var(--gold); border-radius:2px; transition:width .22s var(--ease);
  }
  .nav-link:hover{ color:var(--text-hi); }
  .nav-link:hover::after{ width:100%; }
  .nav-link.is-active{ color:var(--gold); }
  .nav-link.is-active::after{ width:100%; }

  .header-actions{ display:flex; align-items:center; gap:10px; }
  .icon-btn{
    display:none; align-items:center; justify-content:center;
    width:40px; height:40px; border-radius:999px;
    color:var(--text-mid);
    background:var(--glass-bg);
    border:1px solid var(--line);
    backdrop-filter:blur(14px) saturate(120%);
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  }
  @media (min-width:1024px){ .icon-btn{ display:inline-flex; } }
  .icon-btn:hover{ color:var(--gold); border-color:rgba(242,176,30,.45); background:rgba(242,176,30,.08); }
  .header-cta{ display:none; }
  @media (min-width:1024px){ .header-cta{ display:inline-flex; } }

  .burger{
    display:inline-flex; align-items:center; justify-content:center;
    flex-direction:column; gap:5px;
    width:44px; height:44px; border-radius:12px;
    border:1px solid var(--line); background:var(--glass-bg);
    backdrop-filter:blur(14px) saturate(120%);
    transition:border-color .2s var(--ease);
  }
  @media (min-width:1024px){ .burger{ display:none; } }
  .burger span{ display:block; width:18px; height:2px; border-radius:2px; background:var(--text-hi); transition:transform .22s var(--ease),opacity .22s var(--ease); }
  .burger:hover{ border-color:rgba(242,176,30,.45); }

  /* ============ 移动抽屉 ============ */
  .drawer{
    position:fixed; inset:0; z-index:120;
    background:rgba(5,7,13,.94);
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    display:flex; flex-direction:column;
    opacity:0; visibility:hidden; transform:translateY(-8px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  }
  .drawer.is-open{ opacity:1; visibility:visible; transform:translateY(0); }
  .drawer-top{
    display:flex; align-items:center; justify-content:space-between;
    height:74px; padding:0 var(--pad);
    border-bottom:1px solid var(--line);
  }
  .drawer-close{
    display:inline-flex; align-items:center; justify-content:center;
    width:44px; height:44px; border-radius:12px;
    border:1px solid var(--line); background:var(--glass-bg);
    color:var(--text-hi); font-size:22px; line-height:1;
    transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .drawer-close:hover{ border-color:rgba(242,176,30,.5); color:var(--gold); }
  .drawer-nav{ flex:1; overflow-y:auto; padding:8px var(--pad); }
  .drawer-link{
    display:flex; align-items:center; justify-content:space-between;
    min-height:56px; font-size:18px; color:var(--text-hi);
    border-bottom:1px solid var(--line);
  }
  .drawer-link span{ color:var(--text-low); font-size:14px; }
  .drawer-link.is-active{ color:var(--gold); }
  .drawer-foot{ padding:20px var(--pad) 32px; border-top:1px solid var(--line); }
  .drawer-foot .btn{ width:100%; }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    border-radius:999px; font-weight:700; letter-spacing:.02em;
    white-space:nowrap;
    transition:transform .2s var(--ease),box-shadow .24s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .btn-primary{
    padding:14px 28px;
    background:linear-gradient(180deg,#F7C24A,var(--gold));
    color:#141005;
    box-shadow:0 0 0 1px rgba(242,176,30,.55),0 10px 30px -8px rgba(242,176,30,.45);
  }
  .btn-primary:hover{
    transform:translateY(-1px);
    filter:brightness(1.08);
    box-shadow:0 0 0 1px rgba(242,176,30,.72),0 16px 40px -8px rgba(242,176,30,.62);
  }
  .btn-primary:active{
    transform:translateY(0);
    box-shadow:0 0 0 1px rgba(242,176,30,.5),0 6px 16px -8px rgba(242,176,30,.5);
  }
  .btn-ghost{
    padding:14px 28px;
    background:var(--glass-bg);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    border:1px solid rgba(242,176,30,.45);
    color:var(--gold);
    box-shadow:var(--glass-hi);
  }
  .btn-ghost:hover{
    transform:translateY(-1px);
    background:rgba(242,176,30,.10);
    border-color:var(--gold);
    color:#F7C24A;
  }
  .btn-ghost:active{ transform:translateY(0); }
  .btn-sm{ padding:10px 20px; font-size:14px; }

  .link-more{
    display:inline-flex; align-items:center; gap:8px;
    font-size:14px; font-weight:600; color:var(--gold);
    transition:color .2s var(--ease);
  }
  .link-more svg{ transition:transform .2s var(--ease); }
  .link-more:hover{ color:#F7C24A; }
  .link-more:hover svg{ transform:translateX(4px); }

  /* ============ 徽章 ============ */
  .badge{
    display:inline-flex; align-items:center; gap:6px;
    padding:5px 12px; border-radius:999px;
    font-size:12px; letter-spacing:.06em; line-height:1.7;
  }
  .badge-gold{ border:1px solid rgba(242,176,30,.55); color:var(--gold); background:rgba(242,176,30,.07); }
  .badge-cyan{ border:1px solid rgba(47,227,196,.4); color:var(--cyan); background:rgba(47,227,196,.10); }
  .badge-flame{ border:1px solid rgba(255,90,54,.5); color:var(--flame); background:rgba(255,90,54,.10); }

  /* ============ 通用排版 ============ */
  .eyebrow{
    font-size:12px; letter-spacing:.12em; text-transform:none;
    color:var(--text-low); font-weight:600;
  }
  .eyebrow strong{ color:var(--gold); font-weight:700; }
  .h1{
    font-size:clamp(30px,4.6vw,50px);
    line-height:1.14; font-weight:800; letter-spacing:-.01em;
    color:var(--text-hi);
  }
  .h2{
    font-size:clamp(24px,3vw,34px);
    line-height:1.28; font-weight:700; letter-spacing:-.005em;
    color:var(--text-hi);
  }
  .h3{ font-size:20px; line-height:1.5; font-weight:600; color:var(--text-hi); }
  .lede{ font-size:clamp(15px,1.6vw,17px); line-height:1.85; color:var(--text-mid); }
  .body-text{ font-size:16px; line-height:1.85; color:var(--text-mid); }
  .mono{ font-family:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace; letter-spacing:.02em; }

  /* ============ Hero（分类小 Hero） ============ */
  .hero-cat{
    position:relative; overflow:hidden;
    padding-top:118px; padding-bottom:44px;
    border-bottom:1px solid var(--line);
  }
  .hero-cat::before{
    content:""; position:absolute; inset:0; pointer-events:none;
    background:
      radial-gradient(800px 380px at 14% 8%, rgba(242,176,30,.16), transparent 70%),
      radial-gradient(680px 320px at 88% 20%, rgba(47,227,196,.10), transparent 72%);
  }
  .hero-cat::after{
    content:""; position:absolute; inset:0; pointer-events:none; opacity:.06;
    background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(600px 320px at 50% 0%,#000,transparent 78%);
    -webkit-mask-image:radial-gradient(600px 320px at 50% 0%,#000,transparent 78%);
  }
  .hero-cat .wrap{ position:relative; z-index:1; }
  @media (min-width:1024px){
    .hero-cat{ padding-top:148px; padding-bottom:56px; }
  }
  .crumb{
    display:flex; align-items:center; flex-wrap:wrap; gap:8px;
    font-size:13px; color:var(--text-low); margin-bottom:20px;
  }
  .crumb a{ color:var(--text-mid); transition:color .2s var(--ease); }
  .crumb a:hover{ color:var(--gold); }
  .crumb .sep{ color:var(--text-low); opacity:.6; }
  .crumb .current{ color:var(--text-low); }
  .hero-cat h1{ margin-top:14px; max-width:18em; }
  .hero-cat .lede{ margin-top:18px; max-width:620px; }
  .hero-meta{ display:flex; flex-wrap:wrap; align-items:center; gap:12px; margin-top:22px; }
  .hero-actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }

  /* ============ 卡片与面板 ============ */
  .card{
    position:relative;
    background:var(--glass-bg);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--shadow-card),var(--glass-hi);
    transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
  }
  .card:hover{
    transform:translateY(-4px);
    border-color:rgba(242,176,30,.45);
    background:rgba(255,255,255,.07);
  }
  .panel{
    background:var(--glass-bg);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    border:1px solid var(--line);
    border-radius:var(--r-xl);
    box-shadow:var(--shadow-card),var(--glass-hi);
  }

  .media{
    position:relative; overflow:hidden;
    border-radius:var(--r-md);
    background:var(--ink-800);
    border:1px solid var(--line);
  }
  .media img{
    width:100%; height:100%; object-fit:cover;
    transition:transform .5s var(--ease);
  }
  .media::after{
    content:""; position:absolute; inset:0; pointer-events:none;
    background:linear-gradient(180deg,transparent 45%,rgba(5,7,13,.85));
  }

  /* ============ 两栏介绍 ============ */
  .split{
    display:grid; gap:32px; grid-template-columns:1fr;
    align-items:start;
  }
  @media (min-width:1024px){
    .split{ grid-template-columns:1.05fr .95fr; gap:56px; }
  }
  .split-right{ display:flex; flex-direction:column; gap:20px; }
  .split-right .media{ aspect-ratio:16/11; }

  .check-list{ display:flex; flex-direction:column; gap:16px; margin-top:26px; }
  .check-item{ display:flex; gap:14px; align-items:flex-start; }
  .check-mark{
    flex-shrink:0; display:inline-flex; align-items:center; justify-content:center;
    width:22px; height:22px; margin-top:5px; border-radius:999px;
    background:rgba(47,227,196,.14); color:var(--cyan);
    border:1px solid rgba(47,227,196,.35);
  }
  .check-item h3{ font-size:16px; font-weight:600; color:var(--text-hi); }
  .check-item p{ font-size:14.5px; line-height:1.7; color:var(--text-mid); margin-top:4px; }

  /* ============ 流程步骤 ============ */
  .steps{
    display:grid; gap:18px; grid-template-columns:1fr;
    margin-top:40px;
  }
  @media (min-width:640px){ .steps{ grid-template-columns:repeat(2,1fr); } }
  @media (min-width:1024px){ .steps{ grid-template-columns:repeat(4,1fr); gap:24px; } }
  .step{
    position:relative; padding-top:22px;
    border-top:1px solid var(--line);
  }
  .step::before{
    content:""; position:absolute; top:-1px; left:0; width:56px; height:2px;
    background:linear-gradient(90deg,var(--gold),rgba(242,176,30,0));
    border-radius:2px;
  }
  .step-num{
    font-family:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace;
    font-size:13px; letter-spacing:.12em; color:var(--gold);
  }
  .step h3{ font-size:17px; font-weight:600; margin-top:10px; color:var(--text-hi); }
  .step p{ font-size:14.5px; line-height:1.7; color:var(--text-mid); margin-top:8px; }

  /* ============ 玩法模块（非对称） ============ */
  .module-grid{
    display:grid; gap:22px; grid-template-columns:1fr; margin-top:40px;
  }
  @media (min-width:1024px){
    .module-grid{ grid-template-columns:1.25fr .75fr; gap:24px; align-items:stretch; }
  }
  .module-big{ display:flex; flex-direction:column; overflow:hidden; }
  .module-big .media{ border-radius:calc(var(--r-lg) - 2px); aspect-ratio:16/9; margin:0; border:0; }
  .module-body{ padding:22px 24px 24px; }
  .module-body .h3{ margin-top:12px; }
  .module-body p{ font-size:14.5px; line-height:1.7; color:var(--text-mid); margin-top:10px; }
  .module-side{ display:grid; gap:22px; grid-template-columns:1fr; }
  .module-small{ display:flex; flex-direction:column; overflow:hidden; }
  .module-small .media{ border-radius:calc(var(--r-lg) - 2px); aspect-ratio:16/8; margin:0; border:0; }
  .module-small .module-body{ padding:18px 20px 20px; }
  .module-small .h3{ font-size:18px; margin-top:10px; }

  .wide-card{
    display:grid; grid-template-columns:1fr; gap:22px;
    margin-top:22px; overflow:hidden; padding:0;
  }
  @media (min-width:768px){
    .wide-card{ grid-template-columns:.42fr .58fr; align-items:center; }
  }
  .wide-card .media{ border-radius:0; height:100%; min-height:200px; margin:0; border:0; }
  .wide-card .module-body{ padding:24px 26px; }
  .module-foot{ display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:14px; margin-top:18px; }

  /* ============ 数据面板 ============ */
  .data-grid{
    display:grid; gap:24px; grid-template-columns:1fr; margin-top:36px;
  }
  @media (min-width:1024px){
    .data-grid{ grid-template-columns:1.02fr .98fr; gap:40px; align-items:center; }
  }
  .stat-row{ display:grid; gap:14px; grid-template-columns:repeat(3,1fr); margin-top:26px; }
  @media (max-width:520px){ .stat-row{ grid-template-columns:1fr; } }
  .stat{
    padding:16px 16px 14px;
    border:1px solid var(--line); border-radius:var(--r-md);
    background:rgba(255,255,255,.035);
  }
  .stat dt{ font-size:12px; letter-spacing:.06em; color:var(--text-low); }
  .stat dd{
    margin:6px 0 0; font-size:22px; font-weight:700; color:var(--cyan);
    font-family:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace; letter-spacing:.02em;
  }
  .stat dd span{ font-size:13px; color:var(--text-mid); margin-left:4px; font-weight:500; }

  .progress-head{ display:flex; align-items:baseline; justify-content:space-between; gap:12px; }
  .progress-head strong{ font-size:14.5px; color:var(--text-hi); font-weight:600; }
  .progress-head em{
    font-style:normal; font-size:20px; font-weight:700; color:var(--gold);
    font-family:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace;
  }
  .progress-track{
    position:relative; height:8px; margin-top:14px; border-radius:999px;
    background:rgba(255,255,255,.08); overflow:visible;
  }
  .progress-fill{
    position:relative; height:100%; border-radius:999px;
    background:linear-gradient(90deg,var(--gold-deep),var(--gold));
    box-shadow:0 0 18px -4px rgba(242,176,30,.8);
  }
  .progress-fill::after{
    content:""; position:absolute; right:-5px; top:50%; transform:translateY(-50%);
    width:10px; height:10px; border-radius:999px; background:#FFD77A;
    box-shadow:0 0 14px 2px rgba(242,176,30,.85);
  }
  .progress-scale{
    display:flex; justify-content:space-between; margin-top:12px;
    font-size:12px; color:var(--text-low);
    font-family:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace;
  }
  .panel-inner{ padding:26px 24px; }
  @media (min-width:768px){ .panel-inner{ padding:32px 32px; } }
  .state-list{ display:flex; flex-direction:column; gap:12px; margin-top:22px; }
  .state-item{
    display:flex; align-items:center; justify-content:space-between; gap:14px;
    padding:12px 14px; border-radius:var(--r-sm);
    border:1px solid var(--line); background:rgba(255,255,255,.03);
    transition:background .2s var(--ease);
  }
  .state-item:hover{ background:rgba(255,255,255,.06); }
  .state-item p{ font-size:14px; color:var(--text-mid); }
  .state-item strong{ display:block; font-size:14.5px; color:var(--text-hi); font-weight:600; }

  /* ============ FAQ ============ */
  .faq-list{ display:flex; flex-direction:column; gap:12px; margin-top:36px; }
  .faq-item{
    background:var(--glass-bg);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--glass-hi);
    transition:border-color .22s var(--ease),background .22s var(--ease);
  }
  .faq-item:hover{ border-color:rgba(242,176,30,.35); }
  .faq-q{
    display:flex; align-items:center; justify-content:space-between; gap:16px;
    width:100%; text-align:left; padding:18px 20px;
    font-size:16px; font-weight:600; color:var(--text-hi);
    transition:color .2s var(--ease);
  }
  .faq-q:hover{ color:#F7C24A; }
  .faq-item.is-open .faq-q{ color:var(--gold); }
  .faq-icon{
    flex-shrink:0; position:relative;
    width:22px; height:22px; border-radius:999px;
    border:1px solid rgba(242,176,30,.5);
    transition:transform .2s var(--ease);
  }
  .faq-icon::before,.faq-icon::after{
    content:""; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
    background:var(--gold); border-radius:2px;
  }
  .faq-icon::before{ width:10px; height:1.5px; }
  .faq-icon::after{ width:1.5px; height:10px; transition:opacity .2s var(--ease); }
  .faq-item.is-open .faq-icon{ transform:rotate(90deg); }
  .faq-item.is-open .faq-icon::after{ opacity:0; }
  .faq-a{
    display:grid; grid-template-rows:0fr;
    transition:grid-template-rows .28s var(--ease);
  }
  .faq-item.is-open .faq-a{ grid-template-rows:1fr; }
  .faq-a-inner{ overflow:hidden; }
  .faq-a p{
    padding:0 20px 20px; font-size:14.5px; line-height:1.8; color:var(--text-mid);
  }

  /* ============ CTA 条 ============ */
  .cta-band{
    position:relative; overflow:hidden;
    border-top:1px solid var(--line); border-bottom:1px solid var(--line);
    background:var(--ink-900);
  }
  .cta-band::before{
    content:""; position:absolute; inset:0; pointer-events:none;
    background:radial-gradient(560px 260px at 50% 30%, rgba(242,176,30,.16), transparent 72%);
  }
  .cta-band .inner{
    position:relative; z-index:1;
    max-width:720px; margin:0 auto; text-align:center;
    padding:64px 0;
  }
  @media (min-width:1024px){ .cta-band .inner{ padding:88px 0; } }
  .cta-band p{ margin-top:14px; font-size:15.5px; color:var(--text-mid); }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:14px; justify-content:center; align-items:center; margin-top:28px; }

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--ink-950);
    border-top:1px solid var(--line);
    padding:56px 0 0;
  }
  @media (min-width:1024px){ .site-footer{ padding-top:72px; } }
  .footer-grid{
    display:grid; gap:32px; grid-template-columns:1fr;
    padding-bottom:40px;
  }
  @media (min-width:640px){ .footer-grid{ grid-template-columns:repeat(2,1fr); } }
  @media (min-width:1024px){ .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; } }
  .footer-text{ margin-top:16px; font-size:14px; line-height:1.8; color:var(--text-mid); max-width:34em; }
  .footer-title{
    font-size:12px; letter-spacing:.12em; color:var(--text-low);
    font-weight:700; margin-bottom:14px;
  }
  .footer-link{
    display:block; font-size:14.5px; color:var(--text-mid);
    padding:6px 0; transition:color .2s var(--ease),transform .2s var(--ease);
  }
  .footer-link:hover{ color:var(--gold); transform:translateX(2px); }
  .footer-note{ font-size:14px; line-height:1.8; color:var(--text-mid); margin-bottom:8px; }
  .footer-note strong{ color:var(--text-hi); font-weight:600; }
  .footer-bottom{
    display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between;
    border-top:1px solid var(--line);
    padding:20px 0 28px;
    font-size:12.5px; color:var(--text-low);
  }

  /* 通用小工具 */
  .stack-24 > * + *{ margin-top:24px; }
  .muted{ color:var(--text-low); }
  .divider{ height:1px; background:var(--line); border:0; margin:0; }

/* roulang page: category2 */
:root{
  --ink-950:#05070D;
  --ink-900:#0A0F1C;
  --ink-800:#111A2E;
  --line:rgba(255,255,255,.10);
  --gold:#F2B01E;
  --gold-deep:#C98A05;
  --gold-soft:#F7C24A;
  --cyan:#2FE3C4;
  --flame:#FF5A36;
  --text-hi:#F2F6FF;
  --text-mid:#A9B6CC;
  --text-low:#6C7A93;
  --glass:rgba(255,255,255,.05);
  --glass-hi:rgba(255,255,255,.07);
  --radius-lg:22px;
  --radius:18px;
  --radius-sm:14px;
  --radius-xs:12px;
  --shadow-card:0 20px 45px -22px rgba(0,0,0,.85);
  --shadow-soft:0 14px 34px -26px rgba(0,0,0,.95);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.site-body{
  margin:0;min-height:100vh;overflow-x:hidden;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;
  background:var(--ink-950);color:var(--text-hi);
  -webkit-font-smoothing:antialiased;
}
.site-body img{display:block;max-width:100%}
.site-body a{color:inherit;text-decoration:none}
.site-body button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.site-body ul,.site-body ol{margin:0;padding:0;list-style:none}
.site-body :focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.wrap{padding:0 32px}}
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:92px 0}}
.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--gold);font-weight:700;margin:0 0 12px}
.h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin:0}
.h3{font-size:20px;line-height:1.45;font-weight:600;margin:0}
.lead{color:var(--text-mid);font-size:16px;line-height:1.85;margin:14px 0 0;max-width:64ch}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;border-bottom:1px solid transparent;transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease)}
.site-header.is-scrolled{background:rgba(10,15,28,.78);backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);border-bottom-color:var(--line);box-shadow:var(--shadow-soft)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;width:38px;height:38px;align-items:center;justify-content:center;border-radius:12px;background:rgba(242,176,30,.10);border:1px solid rgba(242,176,30,.32)}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--text-hi);white-space:nowrap}
.nav-links{display:none}
@media(min-width:1024px){.nav-links{display:flex;align-items:center;gap:28px}}
.nav-link{position:relative;font-size:15px;color:var(--text-mid);padding:6px 0;transition:color .2s var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:var(--gold);transition:width .22s var(--ease)}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--gold)}
.nav-link.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);color:var(--text-mid);transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.icon-btn:hover{color:var(--gold);border-color:rgba(242,176,30,.45);background:rgba(242,176,30,.06)}
.menu-btn{display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);color:var(--text-hi)}
.menu-btn:hover{border-color:rgba(242,176,30,.45);color:var(--gold)}
.header-actions .btn-primary{display:none}
@media(min-width:768px){.header-actions .btn-primary{display:inline-flex}}
@media(min-width:1024px){.menu-btn{display:none}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:700;letter-spacing:.02em;white-space:nowrap;transition:transform .2s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease)}
.btn-primary{padding:13px 28px;background:linear-gradient(180deg,var(--gold-soft),var(--gold));color:#1A1204;box-shadow:0 0 0 1px rgba(242,176,30,.55),0 10px 30px -8px rgba(242,176,30,.45)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(242,176,30,.72),0 14px 40px -8px rgba(242,176,30,.60);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(242,176,30,.6),0 6px 18px -10px rgba(242,176,30,.5)}
.btn-ghost{padding:13px 28px;background:var(--glass);border:1px solid rgba(242,176,30,.45);color:var(--gold);backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%)}
.btn-ghost:hover{background:rgba(242,176,30,.08);border-color:var(--gold);color:var(--gold-soft);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 20px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--gold);font-size:14px;font-weight:600;transition:color .2s var(--ease)}
.text-link .arrow{display:inline-block;transition:transform .2s var(--ease)}
.text-link:hover{color:var(--gold-soft)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 13px;border-radius:999px;font-size:12px;letter-spacing:.06em;line-height:1.9;font-weight:600}
.badge-gold{border:1px solid rgba(242,176,30,.55);color:var(--gold);background:rgba(242,176,30,.08)}
.badge-cyan{border:1px solid rgba(47,227,196,.40);color:var(--cyan);background:rgba(47,227,196,.12)}
.badge-mute{border:1px solid var(--line);color:var(--text-low);background:rgba(255,255,255,.04)}
.badge-solid-gold{background:linear-gradient(180deg,var(--gold-soft),var(--gold));color:#1A1204;border:1px solid rgba(242,176,30,.6)}
.badge-flame{background:rgba(255,90,54,.16);border:1px solid rgba(255,90,54,.5);color:#FF8465}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:calc(76px + 52px) 0 56px;background:
  radial-gradient(62% 72% at 84% 6%,rgba(242,176,30,.15),transparent 62%),
  radial-gradient(52% 62% at 6% 0%,rgba(47,227,196,.10),transparent 60%),
  var(--ink-950)}
.page-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:56px 56px;opacity:.55;
  -webkit-mask-image:radial-gradient(circle at 46% 28%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 46% 28%,#000,transparent 78%)}
.page-hero .wrap{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:20px}
.breadcrumb a{color:var(--text-mid);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--text-hi)}
.breadcrumb .sep{opacity:.65}
.page-hero h1{font-size:clamp(28px,4.2vw,44px);line-height:1.16;font-weight:800;letter-spacing:-.01em;margin:16px 0 16px}
.page-hero-sub{color:var(--text-mid);font-size:17px;line-height:1.8;margin:0;max-width:58ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.hero-meta div{min-width:96px}
.hero-meta strong{display:block;font-family:ui-monospace,"DIN Alternate",Menlo,monospace;font-size:22px;letter-spacing:.02em;color:var(--cyan);font-weight:700}
.hero-meta span{font-size:12px;letter-spacing:.1em;color:var(--text-low)}

/* ---------- cards ---------- */
.card{position:relative;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(242,176,30,.45);background:var(--glass-hi)}
.media{position:relative;overflow:hidden;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--ink-800)}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.media::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,transparent 45%,rgba(5,7,13,.85))}

/* ---------- task grid ---------- */
.task-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:700px){.task-grid{grid-template-columns:repeat(2,1fr)}}
.task-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.task-card .media{border-radius:16px 16px 0 0;border:0;border-bottom:1px solid var(--line);height:172px}
.task-card:hover .media img{transform:scale(1.03)}
.task-card-body{display:flex;flex-direction:column;gap:12px;padding:22px 24px 24px;flex:1}
.task-card-body .badge{align-self:flex-start}
.task-card-desc{color:var(--text-mid);font-size:14.5px;line-height:1.75;margin:0}
.task-card-foot{margin-top:auto;padding-top:6px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.task-count{font-family:ui-monospace,"DIN Alternate",Menlo,monospace;font-size:12px;letter-spacing:.02em;color:var(--text-low)}

/* ---------- panel ---------- */
.panel{border-radius:var(--radius-lg);background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  padding:28px}
@media(min-width:1024px){.panel{padding:40px}}
.panel-split{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:900px){.panel-split{grid-template-columns:0.95fr 1.05fr;align-items:center}}
.progress-track{position:relative;height:8px;border-radius:999px;background:rgba(255,255,255,.08);margin:6px 0 8px}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--gold-deep),var(--gold));position:relative}
.progress-fill::after{content:"";position:absolute;right:-5px;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:50%;background:var(--gold);box-shadow:0 0 14px rgba(242,176,30,.9)}
.progress-legend{display:flex;align-items:center;justify-content:space-between;font-size:12px;letter-spacing:.06em;color:var(--text-low)}
.progress-legend strong{font-family:ui-monospace,"DIN Alternate",Menlo,monospace;color:var(--gold);font-size:14px;letter-spacing:.02em}
.status-list{margin-top:26px;border-top:1px solid var(--line)}
.status-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.status-row:last-child{border-bottom:0}
.status-row p{margin:0;font-size:15px;color:var(--text-hi);font-weight:600}
.status-row small{display:block;font-weight:400;font-size:13px;color:var(--text-low);margin-top:2px;letter-spacing:.01em}

/* ---------- steps ---------- */
.steps{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:820px){.steps{grid-template-columns:repeat(3,1fr)}}
.step{position:relative;padding:26px 24px;border-radius:var(--radius);background:rgba(255,255,255,.03);border:1px solid var(--line);transition:border-color .22s var(--ease),background .22s var(--ease)}
.step:hover{border-color:rgba(242,176,30,.40);background:rgba(255,255,255,.055)}
.step-no{font-family:ui-monospace,"DIN Alternate",Menlo,monospace;font-size:13px;letter-spacing:.16em;color:var(--gold);margin:0 0 10px}
.step p{margin:10px 0 0;color:var(--text-mid);font-size:14.5px;line-height:1.75}

/* ---------- faq ---------- */
.faq-list{max-width:880px}
.faq-item{margin-bottom:12px;border-radius:var(--radius-sm);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease)}
.faq-item:hover{border-color:rgba(242,176,30,.35);background:rgba(255,255,255,.06)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text-hi);transition:color .2s var(--ease)}
.faq-item.is-open .faq-q{color:var(--gold)}
.faq-icon{flex:0 0 auto;display:inline-flex;width:22px;height:22px;align-items:center;justify-content:center;color:var(--gold);transition:transform .2s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(90deg)}
.faq-icon .bar-v{transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-icon .bar-v{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{margin:0;padding:0 22px 20px;color:var(--text-mid);font-size:15px;line-height:1.85}

/* ---------- cta ---------- */
.cta-strip{padding:60px 0;text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:radial-gradient(62% 130% at 50% 0%,rgba(242,176,30,.11),transparent 72%),var(--ink-900)}
.cta-inner{max-width:720px;margin:0 auto}
.cta-inner p{color:var(--text-mid);font-size:16px;line-height:1.85;margin:14px 0 0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding:60px 0 26px}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.footer-title{font-size:12px;letter-spacing:.12em;color:var(--text-low);margin:0 0 14px;font-weight:600}
.footer-link{display:block;color:var(--text-mid);font-size:14.5px;padding:5px 0;transition:color .2s var(--ease)}
.footer-link:hover{color:var(--gold)}
.footer-text{color:var(--text-mid);font-size:14.5px;line-height:1.8;margin:14px 0 0;max-width:36ch}
.footer-note{color:var(--text-mid);font-size:14px;margin:0 0 8px;line-height:1.7}
.footer-note strong{color:var(--text-hi);font-weight:600}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;border-top:1px solid var(--line);margin-top:42px;padding-top:22px;font-size:13px;color:var(--text-low)}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none;flex-direction:column;
  background:rgba(5,7,13,.97);backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);
  padding:18px 20px 26px;overflow-y:auto}
.drawer.is-open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);color:var(--text-hi);transition:border-color .2s var(--ease),color .2s var(--ease)}
.drawer-close:hover{border-color:rgba(242,176,30,.5);color:var(--gold)}
.search-box{display:flex;align-items:center;gap:10px;background:#0C1220;border:1px solid var(--line);border-radius:var(--radius-xs);padding:11px 14px;margin-bottom:18px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-box:focus-within{border-color:var(--gold);box-shadow:0 0 0 3px rgba(242,176,30,.15)}
.search-box input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:var(--text-hi);font-size:15px}
.search-box input::placeholder{color:var(--text-low)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{padding:17px 0;font-size:18px;color:var(--text-mid);border-bottom:1px solid var(--line);transition:color .2s var(--ease)}
.drawer-nav a:hover{color:var(--text-hi)}
.drawer-nav a.is-active{color:var(--gold)}
.drawer-cta{margin-top:auto;padding-top:26px}
.drawer-cta .btn{width:100%}
.nav-locked{overflow:hidden}

/* roulang page: category3 */
:root{
    --ink-950:#05070D;
    --ink-900:#0A0F1C;
    --ink-800:#111A2E;
    --line:rgba(255,255,255,.10);
    --gold:#F2B01E;
    --gold-deep:#C98A05;
    --gold-soft:#F7C24A;
    --cyan:#2FE3C4;
    --flame:#FF5A36;
    --text-hi:#F2F6FF;
    --text-mid:#A9B6CC;
    --text-low:#6C7A93;
    --glass:rgba(255,255,255,.05);
    --glass-hover:rgba(255,255,255,.07);
    --r-xl:22px;
    --r-lg:18px;
    --r-img:14px;
    --r-sm:12px;
    --sh-card:0 20px 45px -22px rgba(0,0,0,.85);
    --sh-inset:inset 0 1px 0 rgba(255,255,255,.08);
    --ease:cubic-bezier(.2,.7,.3,1);
    --header-h:76px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--ink-950);
    color:var(--text-hi);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.no-scroll{overflow:hidden;}
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:
      linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:64px 64px;
    opacity:.06;
    -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 72%);
    mask-image:linear-gradient(180deg,#000 0%,transparent 72%);
  }
  h1,h2,h3,h4,p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
  :focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:8px;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
  @media (min-width:1024px){.wrap{padding:0 32px;}}

  .section{padding:56px 0;position:relative;z-index:1;}
  @media (min-width:1024px){.section{padding:92px 0;}}
  .section-tight{padding:48px 0;}
  @media (min-width:1024px){.section-tight{padding:72px 0;}}

  .num{font-family:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace;letter-spacing:.02em;font-variant-numeric:tabular-nums;}

  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-size:12px;letter-spacing:.12em;font-weight:700;
    color:var(--gold);text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:26px;height:1px;background:var(--gold);opacity:.75;}

  .h2{font-size:28px;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
  @media (min-width:1024px){.h2{font-size:34px;}}
  .h3{font-size:20px;line-height:1.4;font-weight:600;}
  .lede{color:var(--text-mid);font-size:16px;line-height:1.85;max-width:60ch;}

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:80;
    border-bottom:1px solid transparent;
    transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),backdrop-filter .24s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(10,15,28,.74);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    backdrop-filter:blur(14px) saturate(120%);
    border-bottom-color:var(--line);
    box-shadow:0 14px 34px -26px rgba(0,0,0,.95);
  }
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--header-h);}
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:rgba(242,176,30,.08);border:1px solid rgba(242,176,30,.28);}
  .brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text-hi);white-space:nowrap;}
  @media (max-width:359px){.brand-text{font-size:15px;}}

  .nav-links{display:none;}
  @media (min-width:1024px){.nav-links{display:flex;align-items:center;gap:4px;}}
  .nav-link{
    position:relative;display:inline-block;
    padding:10px 14px;border-radius:999px;
    font-size:15px;color:var(--text-mid);
    transition:color .22s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
    background:var(--gold);transform:scaleX(0);transform-origin:left center;
    transition:transform .22s var(--ease);
  }
  .nav-link:hover{color:var(--text-hi);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--gold);}
  .nav-link.is-active::after{transform:scaleX(1);}

  .nav-actions{display:flex;align-items:center;gap:10px;}
  .icon-btn{
    width:44px;height:44px;display:grid;place-items:center;
    border-radius:12px;border:1px solid var(--line);
    background:rgba(255,255,255,.04);color:var(--text-mid);
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  }
  .icon-btn:hover{color:var(--gold);border-color:rgba(242,176,30,.45);background:rgba(242,176,30,.08);}
  .menu-btn{display:grid;}
  @media (min-width:1024px){.menu-btn{display:none;}}
  @media (max-width:1023px){.search-btn{display:none;}}
  @media (max-width:639px){.nav-actions .btn{display:none;}}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:999px;
    font-size:15px;font-weight:700;letter-spacing:.01em;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  }
  .btn-gold{
    background:linear-gradient(180deg,#F7C24A 0%,#E0A012 55%,#C98A05 100%);
    color:#191003;
    box-shadow:0 0 0 1px rgba(242,176,30,.55),0 10px 30px -8px rgba(242,176,30,.45);
  }
  .btn-gold:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(242,176,30,.75),0 16px 40px -8px rgba(242,176,30,.58);}
  .btn-gold:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(242,176,30,.6),0 6px 16px -8px rgba(242,176,30,.4);}
  .btn-ghost{
    background:var(--glass);color:var(--text-hi);
    border-color:rgba(242,176,30,.42);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--sh-inset);
  }
  .btn-ghost:hover{color:#FFD98A;border-color:var(--gold);background:rgba(242,176,30,.10);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-sm{padding:9px 18px;font-size:14px;}

  .text-link{
    display:inline-flex;align-items:center;gap:8px;
    font-size:14.5px;font-weight:600;color:var(--text-hi);
    transition:color .22s var(--ease);
  }
  .text-link .arrow{display:inline-block;transition:transform .22s var(--ease);font-size:14px;color:var(--gold);}
  .text-link:hover{color:var(--gold);}
  .text-link:hover .arrow{transform:translateX(4px);}

  /* ---------- Badges ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;
    font-size:12px;font-weight:600;letter-spacing:.06em;line-height:1.6;
    white-space:nowrap;
  }
  .badge-gold{border:1px solid rgba(242,176,30,.55);color:#F7C24A;background:rgba(242,176,30,.08);}
  .badge-cyan{background:rgba(47,227,196,.12);color:#8FF4E1;border:1px solid rgba(47,227,196,.30);}
  .badge-flame{background:rgba(255,90,54,.14);color:#FF8A6B;border:1px solid rgba(255,90,54,.42);}

  /* ---------- Cards ---------- */
  .card{
    position:relative;
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-card),var(--sh-inset);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    backdrop-filter:blur(14px) saturate(120%);
    transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
  }
  .card:hover{transform:translateY(-4px);border-color:rgba(242,176,30,.45);background:var(--glass-hover);}

  .media{position:relative;overflow:hidden;border-radius:var(--r-img);background:var(--ink-800);border:1px solid var(--line);}
  .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
  .media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,transparent 45%,rgba(5,7,13,.85) 100%);
    pointer-events:none;
  }
  .media-hover:hover img{transform:scale(1.03);}

  /* ---------- Progress ---------- */
  .bar-track{position:relative;height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:visible;}
  .bar-fill{
    position:relative;height:100%;border-radius:999px;
    background:linear-gradient(90deg,var(--gold-deep),var(--gold) 55%,var(--gold-soft));
    box-shadow:0 0 14px rgba(242,176,30,.5);
  }
  .bar-fill::after{
    content:"";position:absolute;right:-2px;top:50%;transform:translateY(-50%);
    width:10px;height:10px;border-radius:50%;background:var(--gold-soft);
    box-shadow:0 0 12px 2px rgba(242,176,30,.7);
  }

  /* ---------- Page hero ---------- */
  .page-hero{
    position:relative;
    padding:calc(var(--header-h) + 48px) 0 52px;
    overflow:hidden;
    background-image:linear-gradient(180deg,rgba(5,7,13,.88) 0%,rgba(5,7,13,.96) 65%,var(--ink-950) 100%),url('/assets/images/backpic/back-1.webp');
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:
      radial-gradient(60% 70% at 12% 0%,rgba(242,176,30,.16),transparent 68%),
      radial-gradient(50% 60% at 88% 20%,rgba(47,227,196,.10),transparent 70%);
  }
  @media (min-width:1024px){.page-hero{padding:calc(var(--header-h) + 68px) 0 76px;}}
  .page-hero .wrap{position:relative;z-index:2;}
  .hero-inner{max-width:820px;}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--text-low);letter-spacing:.02em;}
  .crumbs a{color:var(--text-mid);transition:color .2s var(--ease);}
  .crumbs a:hover{color:var(--text-hi);}
  .crumbs .sep{opacity:.6;}
  .crumbs .current{color:var(--text-low);}
  .hero-badges{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;}
  .hero-title{
    margin-top:18px;
    font-size:clamp(30px,4.6vw,46px);
    line-height:1.14;
    font-weight:800;
    letter-spacing:-.01em;
  }
  .hero-desc{
    margin-top:16px;
    max-width:60ch;
    color:var(--text-mid);
    font-size:16px;
    line-height:1.85;
  }
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

  /* ---------- Overview ---------- */
  .overview-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
  @media (min-width:1024px){.overview-grid{grid-template-columns:5fr 6fr;gap:56px;}}
  .stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:28px;}
  .stat{border-top:1px solid var(--line);padding-top:14px;}
  .stat-num{font-family:ui-monospace,"DIN Alternate",Menlo,monospace;font-size:26px;font-weight:700;color:var(--cyan);letter-spacing:.02em;line-height:1.2;}
  .stat-label{font-size:12px;letter-spacing:.08em;color:var(--text-low);margin-top:6px;}
  @media (max-width:520px){.stat-row{grid-template-columns:1fr;gap:14px;} .stat{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}}

  .overview-visual{position:relative;}
  .overview-visual .media{aspect-ratio:16/11;}
  .overview-visual .media img{height:100%;}
  .float-card{
    position:absolute;right:14px;bottom:14px;left:14px;
    padding:16px 18px;border-radius:var(--r-lg);
    background:rgba(10,15,28,.72);
    border:1px solid var(--line);
    -webkit-backdrop-filter:blur(16px) saturate(130%);
    backdrop-filter:blur(16px) saturate(130%);
    box-shadow:0 18px 40px -24px rgba(0,0,0,.95),var(--sh-inset);
  }
  @media (min-width:640px){.float-card{left:auto;width:290px;right:18px;bottom:18px;}}
  .float-head{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;letter-spacing:.1em;color:var(--text-low);}
  .float-vals{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-top:12px;}
  .float-vals .v{font-family:ui-monospace,"DIN Alternate",Menlo,monospace;font-size:18px;font-weight:700;color:var(--text-hi);}
  .float-vals .v small{display:block;font-size:11.5px;font-weight:500;letter-spacing:.06em;color:var(--text-low);margin-top:2px;font-family:inherit;}
  .float-vals .v.cyan{color:var(--cyan);}

  /* ---------- Spec table ---------- */
  .table-shell{
    margin-top:28px;
    border-radius:var(--r-xl);
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    box-shadow:var(--sh-card),var(--sh-inset);
    overflow:hidden;
  }
  .table-scroll{overflow-x:auto;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;}
  .table-scroll::-webkit-scrollbar{height:8px;}
  .table-scroll::-webkit-scrollbar-track{background:rgba(255,255,255,.05);}
  .table-scroll::-webkit-scrollbar-thumb{background:rgba(242,176,30,.45);border-radius:999px;}
  table.spec{width:100%;min-width:840px;border-collapse:separate;border-spacing:0;font-size:15px;text-align:left;}
  .spec thead th{
    background:var(--ink-900);
    color:var(--text-low);
    font-size:12px;font-weight:700;letter-spacing:.1em;
    padding:18px 20px;
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  .spec thead th.tier{color:var(--text-hi);font-size:14px;letter-spacing:.02em;}
  .spec thead th.tier span{display:block;font-size:11.5px;letter-spacing:.08em;color:var(--text-low);font-weight:600;margin-top:4px;}
  .spec thead th.is-feature{background:#131C31;color:var(--gold);}
  .spec tbody th[scope="row"]{
    position:sticky;left:0;z-index:2;
    background:var(--ink-800);
    color:var(--text-mid);
    font-weight:600;font-size:14px;
    padding:15px 20px;
    border-bottom:1px solid var(--line);
    border-right:1px solid var(--line);
    white-space:nowrap;
  }
  .spec tbody td{
    padding:15px 20px;
    border-bottom:1px solid var(--line);
    color:var(--text-hi);
    background:rgba(255,255,255,.012);
    white-space:nowrap;
  }
  .spec tbody td.is-feature{background:rgba(242,176,30,.07);color:#FFE0A0;}
  .spec tbody tr:last-child th,.spec tbody tr:last-child td{border-bottom:none;}
  .spec tbody tr:hover td{background:rgba(255,255,255,.035);}
  .spec tbody tr:hover td.is-feature{background:rgba(242,176,30,.10);}
  .spec .muted{color:var(--text-low);font-size:13.5px;}
  .spec .val{font-family:ui-monospace,"DIN Alternate",Menlo,monospace;letter-spacing:.02em;}
  .table-hint{margin-top:14px;font-size:12.5px;color:var(--text-low);}
  .legend{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}

  /* ---------- Source list ---------- */
  .two-col{display:grid;grid-template-columns:1fr;gap:36px;}
  @media (min-width:1024px){.two-col{grid-template-columns:4fr 7fr;gap:60px;align-items:start;}}
  .sticky-col{position:static;}
  @media (min-width:1024px){.sticky-col{position:sticky;top:calc(var(--header-h) + 32px);}}
  .source-list{border-top:1px solid var(--line);}
  .source-item{
    display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
    padding:20px 16px;border-bottom:1px solid var(--line);
    transition:background .22s var(--ease);
  }
  .source-item:hover{background:rgba(255,255,255,.03);}
  .source-name{font-size:16px;font-weight:600;color:var(--text-hi);}
  .source-desc{font-size:14.5px;line-height:1.7;color:var(--text-mid);margin-top:4px;max-width:52ch;}
  .source-val{flex-shrink:0;font-family:ui-monospace,"DIN Alternate",Menlo,monospace;font-size:16px;font-weight:700;color:var(--cyan);padding-top:2px;}
  .source-val small{display:block;font-size:11.5px;color:var(--text-low);font-weight:500;letter-spacing:.06em;text-align:right;margin-top:2px;}

  /* ---------- Check panel ---------- */
  .check-panel{
    padding:28px;
    border-radius:var(--r-xl);
    background:rgba(255,255,255,.05);
    border:1px solid var(--line);
    box-shadow:var(--sh-card),var(--sh-inset);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    backdrop-filter:blur(14px) saturate(120%);
  }
  @media (min-width:1024px){.check-panel{padding:40px;}}
  .check-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px;}
  @media (min-width:768px){.check-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}}
  .check-item{
    padding:20px;border-radius:var(--r-lg);
    background:rgba(255,255,255,.03);
    border:1px solid var(--line);
    transition:border-color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
  }
  .check-item:hover{border-color:rgba(47,227,196,.38);background:rgba(255,255,255,.05);transform:translateY(-3px);}
  .check-mark{
    display:grid;place-items:center;width:26px;height:26px;border-radius:8px;
    background:rgba(47,227,196,.14);color:var(--cyan);border:1px solid rgba(47,227,196,.32);
    font-size:13px;font-weight:800;
  }
  .check-item h3{font-size:16px;font-weight:600;margin-top:14px;}
  .check-item p{font-size:14px;line-height:1.75;color:var(--text-mid);margin-top:8px;}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;margin-top:28px;}
  .faq-item{
    border-radius:var(--r-lg);
    border:1px solid var(--line);
    background:rgba(255,255,255,.05);
    box-shadow:var(--sh-inset);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    backdrop-filter:blur(14px) saturate(120%);
    overflow:hidden;
    transition:border-color .22s var(--ease),background .22s var(--ease);
  }
  .faq-item:hover{border-color:rgba(242,176,30,.35);background:rgba(255,255,255,.065);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 22px;text-align:left;
    font-size:16px;font-weight:600;color:var(--text-hi);
    transition:color .2s var(--ease);
  }
  .faq-item.is-open .faq-q{color:var(--gold);}
  .faq-icon{
    flex-shrink:0;display:grid;place-items:center;
    width:26px;height:26px;border-radius:50%;
    border:1px solid rgba(242,176,30,.4);color:var(--gold);
    font-size:15px;line-height:1;
    transition:transform .2s var(--ease),background .2s var(--ease);
  }
  .faq-item.is-open .faq-icon{transform:rotate(90deg);background:rgba(242,176,30,.12);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
  .faq-a p{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--text-mid);}

  /* ---------- CTA band ---------- */
  .cta-band{
    position:relative;
    padding:64px 0;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    background:
      radial-gradient(60% 120% at 50% 0%,rgba(242,176,30,.16),transparent 70%),
      radial-gradient(50% 90% at 80% 100%,rgba(47,227,196,.08),transparent 70%);
    overflow:hidden;
  }
  @media (min-width:1024px){.cta-band{padding:88px 0;}}
  .cta-inner{max-width:720px;margin:0 auto;text-align:center;}
  .cta-inner .lede{margin:16px auto 0;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center;margin-top:28px;}

  /* ---------- Footer ---------- */
  .site-footer{
    position:relative;z-index:1;
    background:var(--ink-900);
    border-top:1px solid var(--line);
    padding:56px 0 28px;
  }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px;}}
  .footer-title{font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--text-low);margin-bottom:14px;}
  .footer-link{display:block;font-size:14.5px;color:var(--text-mid);padding:5px 0;transition:color .2s var(--ease),transform .2s var(--ease);}
  .footer-link:hover{color:var(--gold);transform:translateX(3px);}
  .footer-text{font-size:14.5px;line-height:1.8;color:var(--text-mid);margin-top:16px;max-width:34ch;}
  .footer-note{font-size:14px;color:var(--text-mid);padding:4px 0;}
  .footer-note strong{color:var(--text-hi);font-weight:600;}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:12.5px;color:var(--text-low);
  }

  /* ---------- Mobile drawer ---------- */
  .mobile-drawer{
    position:fixed;inset:0;z-index:90;
    display:flex;flex-direction:column;
    padding:20px 20px 24px;
    background:rgba(5,7,13,.92);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    backdrop-filter:blur(18px) saturate(120%);
    opacity:0;visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .24s var(--ease),visibility .24s var(--ease),transform .24s var(--ease);
  }
  .mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1px solid var(--line);}
  .drawer-links{margin-top:8px;flex:1;overflow-y:auto;}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    font-size:18px;color:var(--text-mid);
    line-height:56px;min-height:56px;
    border-bottom:1px solid var(--line);
    transition:color .2s var(--ease);
  }
  .drawer-link:hover,.drawer-link.is-active{color:var(--gold);}
  .drawer-bottom{padding-top:18px;border-top:1px solid var(--line);}
  .drawer-bottom .btn{width:100%;}

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  }

/* roulang page: category4 */
:root{
  --ink-950:#05070D;
  --ink-900:#0A0F1C;
  --ink-800:#111A2E;
  --line:rgba(255,255,255,.10);
  --gold:#F2B01E;
  --gold-deep:#C98A05;
  --gold-soft:#F7C24A;
  --cyan:#2FE3C4;
  --flame:#FF5A36;
  --text-hi:#F2F6FF;
  --text-mid:#A9B6CC;
  --text-low:#6C7A93;
  --glass:rgba(255,255,255,.05);
  --glass-hover:rgba(255,255,255,.07);
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
  --sh-card:0 20px 45px -22px rgba(0,0,0,.85);
  --sh-glow:0 0 0 1px rgba(242,176,30,.55),0 10px 30px -8px rgba(242,176,30,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sect-y:60px;
}
@media (min-width:1024px){ :root{ --sect-y:96px; } }

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-mid);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
html a{color:inherit;text-decoration:none}
html button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
html img{display:block;max-width:100%}
html h1,html h2,html h3,html h4,html p{margin:0}
html ul,html ol{margin:0;padding:0;list-style:none}
html input,html select,html textarea{font:inherit}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){ .wrap{padding-left:32px;padding-right:32px} }

.section{padding-top:var(--sect-y);padding-bottom:var(--sect-y)}
.section-alt{background:var(--ink-900);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.micro{
  font-family:ui-monospace,"DIN Alternate",monospace;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--gold);
  text-transform:uppercase;
}
.section-title{
  font-size:clamp(26px,3.2vw,36px);
  line-height:1.25;
  font-weight:700;
  color:var(--text-hi);
  letter-spacing:-.01em;
}
.section-lead{
  margin-top:14px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-mid);
  max-width:640px;
}

/* ============ 导航 ============ */
.header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  border-bottom:1px solid transparent;
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.header.is-scrolled{
  background:rgba(10,15,28,.80);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -26px rgba(0,0,0,.95);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  height:74px;
}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{display:inline-flex;filter:drop-shadow(0 0 10px rgba(242,176,30,.32))}
.brand-text{font-size:17px;font-weight:800;color:var(--text-hi);letter-spacing:.01em}

.nav-links{display:none;align-items:center;gap:4px}
@media (min-width:1024px){ .nav-links{display:flex} }
.nav-link{
  position:relative;
  padding:9px 13px;
  font-size:14.5px;
  color:var(--text-mid);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--text-hi);background:rgba(255,255,255,.03)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--gold)}
.nav-link.is-active::after{transform:scaleX(1)}

.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(255,255,255,.05);
  color:var(--text-mid);
  transition:color .2s,border-color .2s,background .2s;
}
.icon-btn:hover{color:var(--gold);border-color:rgba(242,176,30,.45);background:rgba(242,176,30,.08)}
.btn-nav{display:none}
@media (min-width:1024px){ .btn-nav{display:inline-flex} }

.burger{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(255,255,255,.05);
  color:var(--text-hi);
}
@media (min-width:1024px){ .burger{display:none} }

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;
  z-index:95;
  display:flex;flex-direction:column;
  padding:18px 20px 26px;
  background:rgba(5,7,13,.94);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  opacity:0;
  visibility:hidden;
  transform:translateY(-12px);
  transition:opacity .26s ease,transform .26s var(--ease),visibility .26s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px}
.drawer-close{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text-hi);
}
.drawer-nav{margin-top:18px;border-top:1px solid var(--line)}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;
  font-size:18px;
  color:var(--text-mid);
  border-bottom:1px solid var(--line);
  transition:color .2s;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--gold)}
.drawer-foot{margin-top:auto;padding-top:22px}
.drawer-foot .btn{width:100%}

/* ============ 按钮 / 徽章 / 文本链 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  padding:14px 28px;
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s,color .2s,border-color .2s,filter .2s;
}
.btn-gold{
  background:linear-gradient(180deg,var(--gold-soft),#EBA50F);
  color:#1A1204;
  box-shadow:var(--sh-glow);
}
.btn-gold:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(242,176,30,.72),0 14px 40px -8px rgba(242,176,30,.60)}
.btn-gold:active{transform:none;box-shadow:0 0 0 1px rgba(242,176,30,.5),0 6px 16px -10px rgba(242,176,30,.5)}
.btn-ghost{
  background:var(--glass);
  color:var(--gold);
  border:1px solid rgba(242,176,30,.45);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{background:rgba(242,176,30,.08);color:var(--gold-soft);border-color:rgba(242,176,30,.78)}
.btn-sm{padding:11px 20px;font-size:13.5px}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--gold);outline-offset:2px;
}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--gold);
  transition:color .2s;
}
.link-arrow .ar{display:inline-block;transition:transform .22s var(--ease)}
.link-arrow:hover{color:var(--gold-soft)}
.link-arrow:hover .ar{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12px;letter-spacing:.06em;
  line-height:1.6;
}
.badge-gold{color:var(--gold);border:1px solid rgba(242,176,30,.55);background:rgba(242,176,30,.07)}
.badge-cyan{color:var(--cyan);border:1px solid rgba(47,227,196,.30);background:rgba(47,227,196,.12)}
.badge-flame{color:#FFD3C7;border:1px solid rgba(255,90,54,.45);background:rgba(255,90,54,.16)}

/* ============ 小 Hero ============ */
.page-hero{
  position:relative;
  padding-top:126px;
  padding-bottom:56px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(760px 380px at 12% 0%,rgba(242,176,30,.16),transparent 70%),
    radial-gradient(620px 340px at 88% 24%,rgba(47,227,196,.10),transparent 72%),
    var(--ink-950);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
  -webkit-mask-image:radial-gradient(70% 70% at 50% 30%,#000,transparent);
  mask-image:radial-gradient(70% 70% at 50% 30%,#000,transparent);
}
.page-hero .wrap{position:relative;z-index:2}

.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:var(--text-low);
}
.crumb a{color:var(--text-low);transition:color .2s}
.crumb a:hover{color:var(--text-hi)}
.crumb .sep{opacity:.55}
.crumb .now{color:var(--text-mid)}

.hero-badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px}
.hero-title{
  margin-top:16px;
  font-size:clamp(30px,4.6vw,50px);
  line-height:1.14;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-hi);
}
.hero-desc{
  margin-top:16px;
  max-width:660px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text-mid);
}
.hero-meta{
  margin-top:26px;
  display:flex;flex-wrap:wrap;gap:14px 28px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.hero-meta-item{display:flex;flex-direction:column;gap:2px}
.hero-meta-item .num{
  font-family:ui-monospace,"DIN Alternate",monospace;
  font-size:20px;font-weight:700;color:var(--cyan);letter-spacing:.02em;
}
.hero-meta-item .lbl{font-size:12px;letter-spacing:.1em;color:var(--text-low)}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:56px;margin-top:8px}
.timeline::before{
  content:"";
  position:absolute;left:19px;top:10px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(242,176,30,.8),rgba(47,227,196,.34) 62%,rgba(255,255,255,0));
}
.step{position:relative;padding-bottom:30px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";
  position:absolute;left:-46px;top:9px;
  width:20px;height:20px;
  border-radius:50%;
  background:var(--ink-950);
  border:2px solid var(--gold);
  box-shadow:0 0 0 4px rgba(242,176,30,.10),0 0 18px rgba(242,176,30,.35);
}
.step-micro{
  font-family:ui-monospace,"DIN Alternate",monospace;
  font-size:11.5px;letter-spacing:.12em;color:var(--gold);opacity:.92;
}
.step-title{margin-top:6px;font-size:20px;font-weight:600;color:var(--text-hi);line-height:1.45}
.step-desc{margin-top:8px;font-size:14.8px;line-height:1.8;color:var(--text-mid);max-width:620px}

/* ============ 规则面板 ============ */
.rule-grid{display:grid;gap:28px;grid-template-columns:1fr;margin-top:36px}
@media (min-width:1024px){ .rule-grid{grid-template-columns:1.15fr .85fr;gap:34px;align-items:start} }

.rule-list{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--ink-800);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.rule-item{
  padding:20px 22px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.rule-item:last-child{border-bottom:0}
.rule-item:hover{background:rgba(255,255,255,.03)}
.rule-item h3{
  font-size:16.5px;font-weight:600;color:var(--text-hi);
  display:flex;align-items:center;gap:10px;
}
.rule-item h3::before{
  content:"";
  width:7px;height:7px;border-radius:2px;background:var(--cyan);
  flex:none;
  box-shadow:0 0 10px rgba(47,227,196,.55);
}
.rule-item p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--text-mid)}

.rule-figure{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--ink-800);
  box-shadow:var(--sh-card);
}
.rule-figure img{width:100%;height:320px;object-fit:cover}
.rule-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 42%,rgba(5,7,13,.88));
  pointer-events:none;
}
.rule-figure figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:13.5px;line-height:1.75;color:var(--text-hi);
}
.rule-figure figcaption span{display:block;font-size:12px;letter-spacing:.1em;color:var(--gold);margin-bottom:4px}

/* ============ FAQ ============ */
.faq-list{margin-top:34px;max-width:900px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 1px 0 rgba(255,255,255,.06),var(--sh-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:rgba(242,176,30,.35)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text-hi);
  line-height:1.6;
  transition:color .2s ease;
}
.faq-item.is-open .faq-q{color:var(--gold)}
.faq-icon{flex:none;display:inline-flex;color:var(--text-low);transition:transform .2s ease,color .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(90deg);color:var(--gold)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a-inner{
  padding:0 22px 20px;
  font-size:14.8px;
  line-height:1.9;
  color:var(--text-mid);
  border-top:1px solid var(--line);
  padding-top:16px;
  margin-top:0;
}

/* ============ 联系面板 ============ */
.contact-panel{
  margin-top:34px;
  display:grid;
  gap:30px;
  grid-template-columns:1fr;
  padding:28px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 1px 0 rgba(255,255,255,.06),var(--sh-card);
}
@media (min-width:1024px){ .contact-panel{grid-template-columns:.95fr 1.05fr;gap:40px;padding:36px} }
.contact-panel h3{font-size:21px;font-weight:600;color:var(--text-hi)}
.contact-panel .contact-lead{margin-top:12px;font-size:14.8px;line-height:1.85;color:var(--text-mid)}
.contact-info{margin-top:22px;border-top:1px solid var(--line)}
.contact-info li{
  display:flex;flex-wrap:wrap;gap:6px 14px;
  padding:13px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.contact-info .k{color:var(--text-low);min-width:96px;letter-spacing:.04em}
.contact-info .v{color:var(--text-hi);font-weight:600}

.form-row{display:grid;gap:16px;grid-template-columns:1fr}
@media (min-width:640px){ .form-row.two{grid-template-columns:1fr 1fr} }
.field{display:flex;flex-direction:column;gap:8px}
.label{font-size:12px;letter-spacing:.1em;color:var(--text-low)}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 16px;
  border-radius:var(--r-xs);
  border:1px solid var(--line);
  background:#0C1220;
  color:var(--text-hi);
  font-size:14.5px;
  line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:112px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-low)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-low) 50%),linear-gradient(135deg,var(--text-low) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--gold);
  box-shadow:0 0 0 3px rgba(242,176,30,.15);
  outline:none;
}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px}
.form-msg{font-size:13.5px;color:var(--cyan);min-height:20px}
.form-msg.is-error{color:var(--flame)}

/* ============ 收尾 CTA ============ */
.cta-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(560px 260px at 50% 0%,rgba(242,176,30,.12),transparent 70%),
    var(--ink-900);
  padding-top:64px;
  padding-bottom:64px;
}
.cta-inner{max-width:720px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--text-hi);line-height:1.3}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--text-mid)}
.cta-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-950);
  border-top:1px solid var(--line);
  padding-top:60px;
  padding-bottom:26px;
}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media (min-width:640px){ .footer-grid{grid-template-columns:1fr 1fr} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr .8fr .8fr 1fr;gap:40px} }
.footer-title{
  font-size:12px;letter-spacing:.12em;color:var(--text-low);
  margin-bottom:14px;
}
.footer-link{
  display:block;
  font-size:14.5px;
  color:var(--text-mid);
  padding:5px 0;
  transition:color .2s ease;
}
.footer-link:hover{color:var(--gold)}
.footer-text,.footer-note{
  margin-top:14px;
  font-size:13.5px;
  line-height:1.85;
  color:var(--text-low);
}
.footer-note strong{color:var(--text-mid);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:38px;padding-top:20px;
  border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-low);
}