/* roulang page: index */
:root{
  --bg-base:#050A14;
  --bg-body:#091120;
  --bg-panel:#0C1626;
  --bg-card:#101B2E;
  --bg-card-hover:#14243C;
  --glass:rgba(17,28,45,.62);
  --stroke:rgba(160,200,255,.14);
  --stroke-strong:rgba(120,200,255,.38);
  --white-line:rgba(255,255,255,.08);
  --accent:#2F81F7;
  --aqua:#34E0C0;
  --gold:#E3C36B;
  --text:#EAF2FF;
  --text-2:#9DB0C8;
  --text-3:#67809C;
  --danger:#FF6B7A;
  --ok:#34E0C0;
  --radius-xs:8px;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-xl:28px;
  --shadow-1:0 16px 44px rgba(0,0,0,.38);
  --shadow-glow:0 8px 30px rgba(47,129,247,.30), 0 4px 18px rgba(52,224,192,.18);
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{
  background:var(--bg-base);
  background-image:radial-gradient(circle at 12% 8%,rgba(47,129,247,.10),transparent 34%),radial-gradient(circle at 88% 14%,rgba(52,224,192,.07),transparent 26%);
  color:var(--text);
  font-family:var(--font-family);
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease),transform .3s var(--ease)}
button,input,textarea{font-family:inherit}
.container{width:min(1200px,100% - 48px);margin-inline:auto}
.main{overflow:hidden}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.sec-head{max-width:880px;margin-bottom:42px}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--aqua);background:rgba(52,224,192,.08);border:1px solid rgba(52,224,192,.22);padding:6px 14px;border-radius:999px;margin-bottom:16px;font-weight:500}
.sec-kicker i{font-size:12px}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.sec-sub{margin-top:14px;color:var(--text-2);font-size:16px;max-width:720px}
.section-rule{border-top:1px solid rgba(160,200,255,.08)}
hr{display:block;border:0;border-top:1px solid var(--stroke);margin:0}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--radius-md);
  padding:14px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .35s var(--ease);
  white-space:nowrap;
  text-decoration:none;
  position:relative;
}
.btn i{font-size:14px;pointer-events:none}
.btn:focus-visible{outline:2px solid var(--aqua);outline-offset:3px}
.btn-primary{
  background:linear-gradient(135deg,#3D8BFF 0%,#34E0C0 150%);
  color:#031021;
  box-shadow:0 0 0 rgba(47,129,247,0);
}
.btn-primary:hover{background:linear-gradient(135deg,#59A1FF 0%,#5DE8CF 160%);color:#031021;transform:translateY(-2px);box-shadow:0 8px 34px rgba(47,129,247,.34),0 4px 16px rgba(52,224,192,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 10px rgba(47,129,247,.22)}
.btn-ghost{
  background:rgba(255,255,255,.015);color:var(--text);
  border-color:rgba(128,180,255,.30);
}
.btn-ghost:hover{border-color:var(--aqua);color:#fff;background:rgba(52,224,192,.055);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-gold{
  background:linear-gradient(135deg,#E3C36B,#F4D998);color:#1A1303;
  box-shadow:0 2px 18px rgba(227,195,107,.18);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(227,195,107,.35);color:#1A1303}
.btn-block{width:100%}
.btn-sm{font-size:13px;padding:9px 14px;border-radius:10px}

/* header */
.site-header{
  position:sticky;top:0;z-index:100;
  height:72px;
  border-bottom:1px solid rgba(160,200,255,.10);
  background:rgba(6,12,22,.66);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.header-inner{height:72px;display:flex;align-items:center;gap:18px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,#2F81F7,#34E0C0);
  display:grid;place-items:center;
  color:#061223;font-size:16px;
  box-shadow:0 2px 16px rgba(52,183,255,.34);
}
.brand-text{font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  position:relative;transition:color .25s var(--ease),background .25s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.045)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--aqua);border-radius:99px;
}
.search-command{
  display:flex;align-items:center;gap:8px;
  width:200px;height:37px;padding:0 10px;
  border:1px solid rgba(160,200,255,.18);
  border-radius:10px;
  background:rgba(255,255,255,.035);
  color:var(--text-3);
  transition:border-color .3s,bacground .3s;
  flex-shrink:0;
}
.search-command:hover{border-color:rgba(120,200,255,.38)}
.search-command i{font-size:12px}
.search-command input{
  border:0;background:transparent;color:var(--text);
  font-size:13px;width:100%;outline:none;
}
.search-command input::placeholder{color:#647A9C}
.search-command kbd{
  margin-left:auto;font-family:var(--mono);
  font-size:11px;color:#8BA0BD;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  padding:2px 6px;border-radius:6px;
  line-height:1.4;
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  display:grid;place-items:center;
  width:37px;height:37px;
  border-radius:10px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(160,200,255,.14);
  color:var(--text-2);font-size:14px;
  cursor:pointer;transition:all .25s var(--ease);
}
.icon-btn:hover{color:var(--gold);border-color:rgba(227,195,107,.45);background:rgba(227,195,107,.08)}
.nav-toggle{
  display:none;width:40px;height:40px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--stroke);
  border-radius:10px;
  color:var(--text);font-size:17px;
  align-items:center;justify-content:center;
  cursor:pointer;
}
.header-cta{padding:0 20px;height:40px;border-radius:13px;font-size:14px}

/* hero */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  padding:64px 0 40px;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;inset:0;z-index:-2;
  background:
    linear-gradient(90deg,rgba(5,10,20,.88) 0%,rgba(5,10,20,.55) 42%,rgba(5,10,20,.64) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::after{
  content:'';position:absolute;inset:0;z-index:-1;
  background:radial-gradient(circle at 66% 38%,rgba(52,224,192,.08) 0%,transparent 46%);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:48px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:500;letter-spacing:.04em;
  padding:7px 14px 7px 8px;border-radius:999px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(160,200,255,.20);
  color:var(--text-2);
  margin-bottom:28px;
}
.hero-eyebrow span{
  background:linear-gradient(135deg,#2F81F7,#34E0C0);
  border-radius:999px;color:#041224;font-weight:700;
  font-size:12px;padding:3px 10px;
}
.hero h1{
  font-size:clamp(34px,5.4vw,58px);
  line-height:1.16;font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:20px;
  max-width:620px;
}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,#fff 10%,#9FDBFF 90%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hero-sub{
  color:var(--text-2);font-size:17px;line-height:1.85;
  max-width:520px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:26px}
.hero-note{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:13px;color:var(--text-3)}
.hero-note i{color:var(--aqua);margin-right:7px}
.hero-visual{position:relative}
.hero-visual-card{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid rgba(160,200,255,.22);
  box-shadow:var(--shadow-1);
  background:#0E1C2C;
}
.hero-visual-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-visual-glass{
  position:absolute;left:16px;right:16px;bottom:16px;
  padding:18px 20px;
  border-radius:18px;
  background:var(--glass);
  backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.12);
}
.hero-visual-glass .hvg-label{font-size:12px;color:var(--aqua);margin-bottom:3px}
.hero-visual-glass p{font-size:15px;line-height:1.6}
.hvg-float{
  position:absolute;top:20px;right:20px;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;
  border-radius:12px;
  background:rgba(10,18,30,.7);
  backdrop-filter:blur(14px);
  border:1px solid rgba(227,195,107,.34);
  color:var(--gold);font-size:13px;font-weight:600;
}

/* feature rail */
.feature-rail{background:rgba(12,22,38,.28);border-bottom:1px solid var(--stroke)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-item{display:flex;gap:14px;padding:24px 4px 24px 0}
.feat-icon{
  width:44px;height:44px;flex:0 0 44px;
  border-radius:13px;
  display:grid;place-items:center;
  background:rgba(47,129,247,.09);
  border:1px solid rgba(47,129,247,.2);
  color:var(--accent);font-size:16px;
}
.feat-item:nth-child(2) .feat-icon{background:rgba(52,224,192,.08);border-color:rgba(52,224,192,.22);color:var(--aqua)}
.feat-item:nth-child(3) .feat-icon{background:rgba(227,195,107,.07);border-color:rgba(227,195,107,.22);color:var(--gold)}
.feat-item:nth-child(4) .feat-icon{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--text-2)}
.feat-item h3{font-size:15px;font-weight:600;margin-bottom:3px}
.feat-item p{font-size:13px;color:var(--text-2);line-height:1.6}

/* collections directory */
.dir-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;perspective:1200px}
.dir-card{
  position:relative;background:linear-gradient(160deg,rgba(19,35,55,.7),rgba(12,22,38,.45));
  border:1px solid var(--stroke);border-radius:var(--radius-lg);
  padding:28px 22px 30px;
  overflow:hidden;
  transition:all .4s var(--ease);
}
.dir-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(52,224,192,.7),transparent);
  opacity:0;transition:opacity .4s;
}
.dir-card:hover{transform:translateY(-7px);border-color:var(--stroke-strong);background:#101D32}
.dir-card:hover::before{opacity:1}
.dir-num{
  font-family:var(--mono);font-size:13px;letter-spacing:.12em;
  color:rgba(227,195,107,.88);display:flex;justify-content:space-between;
  align-items:center;margin-bottom:28px;
}
.dir-num i{color:var(--text-3);font-size:11px;}
.dir-icon{
  width:52px;height:52px;border-radius:16px;
  background:rgba(47,129,247,.09);border:1px solid rgba(47,129,247,.15);
  display:grid;place-items:center;color:var(--accent);font-size:20px;
  margin-bottom:22px;
}
.dir-card:nth-child(2) .dir-icon{background:rgba(52,224,192,.08);border-color:rgba(52,224,192,.16);color:var(--aqua)}
.dir-card:nth-child(3) .dir-icon{background:rgba(227,195,107,.07);border-color:rgba(227,195,107,.16);color:var(--gold)}
.dir-card:nth-child(4) .dir-icon{background:rgba(255,255,255,.045);border-color:rgba(255,255,255,.1);color:var(--text-2)}
.dir-card h3{font-size:20px;font-weight:650;margin-bottom:9px}
.dir-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.dir-more{display:inline-flex;align-items:center;gap:7px;margin-top:22px;font-size:14px;color:var(--text)}
}
.dir-more i{font-size:12px;transition:transform .25s var(--ease)}
.dir-card:hover .dir-more i{transform:translateX(4px);color:var(--aqua)}

/* picks asym grid */
.pick-grid{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:minmax(170px,auto);gap:24px}
.pick-main{grid-column:span 3;grid-row:span 2}
.pick-stack{grid-column:span 3;grid-row:span 1}
.pick-stack2{grid-column:span 3;grid-row:span 1}
.pick-wide{grid-column:span 6}
.pick-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--stroke);min-height:220px;
  display:flex;align-items:flex-end;
  background:#101B2E;transition:all .38s var(--ease);
}
.pick-card:hover{transform:translateY(-5px);border-color:var(--stroke-strong);box-shadow:var(--shadow-1)}
.pick-card img.pick-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.pick-card::after{content:'';position:absolute;inset:50% 0 0;background:linear-gradient(0deg,rgba(3,7,15,.93) 10%,rgba(5,10,20,.44) 75%,transparent);z-index:1}
.pick-body{position:relative;z-index:2;padding:26px}
.pick-tag{display:inline-block;font-size:12px;font-weight:500;color:var(--aqua);background:rgba(52,224,192,.1);border:1px solid rgba(52,224,192,.2);padding:4px 10px;border-radius:99px;margin-bottom:12px}
.pick-main .pick-tag{color:var(--gold);background:rgba(227,195,107,.08);border-color:rgba(227,195,107,.22)}
.pick-card h3{font-size:22px;font-weight:700;line-height:1.3;margin-bottom:8px}
.pick-card p{font-size:14px;color:var(--text-2);line-height:1.65;max-width:480px}
.pick-main{min-height:360px}
.pick-stack{min-height:168px}
.pick-stack .pick-body{padding:20px}
.pick-stack h3{font-size:18px}
.pick-stack p{font-size:13px}
.pick-wide{min-height:210px}
.pick-wide .pick-tag{color:#97C7FF;border-color:rgba(47,129,247,.25);background:rgba(47,129,247,.1)}

/* latest CMS */
.latest-section{background:linear-gradient(180deg,transparent,rgba(15,26,42,.45),transparent)}
.latest-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:4.5%;align-items:start}
.latest-intro h3{font-size:26px;font-weight:700;margin-bottom:14px}
.latest-intro p{color:var(--text-2);font-size:15px}
.latest-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2);
  border:1px solid var(--stroke);padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.02);cursor:default;
}
.chip i{font-size:10px;opacity:.8}
.cms-list{list-style:none;background:rgba(12,22,38,.36);border:1px solid var(--stroke);border-radius:var(--radius-lg);overflow:hidden}
.cms-row{
  display:flex;align-items:center;gap:18px;
  padding:18px 22px;
  border-bottom:1px solid rgba(160,200,255,.075);
  background:transparent;
  transition:background .25s var(--ease);
}
.cms-row:last-child{border-bottom:0}
.cms-row:hover{background:rgba(47,129,247,.05)}
.cms-thumb{
  width:88px;height:88px;flex:0 0 88px;
  display:block;border-radius:13px;overflow:hidden;
  background:#16253A;border:1px solid rgba(160,200,255,.1);
}
.cms-thumb img{width:100%;height:100%;object-fit:cover;opacity:.9;transition:opacity .25s,transform .5s var(--ease)}
.cms-thumb:hover img{opacity:1;transform:scale(1.04)}
.cms-main{flex:1;min-width:0}
.cms-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px 13px;margin-bottom:5px}
.cms-cat{
  font-size:12px;color:var(--aqua);background:rgba(52,224,192,.07);
  border:1px solid rgba(52,224,192,.16);
  padding:3px 11px;border-radius:99px;line-height:1.4;
}
.cms-title{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:5px}
.cms-title a:hover{color:var(--aqua)}
.cms-excerpt{font-size:14px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:850px}
.cms-date{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3);flex:0 0 auto;font-variant-numeric:tabular-nums}
.cms-date i{font-size:11px;opacity:.8}
.empty-state{
  border:1px dashed rgba(160,200,255,.22);border-radius:var(--radius-lg);
  padding:48px 24px;text-align:center;color:var(--text-3);
}
.empty-state i{font-size:28px;display:block;margin-bottom:10px;opacity:.6}
.empty-state span{font-size:14px}

/* recommend rail */
.rail-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.rail-card{
  position:relative;
  background:#101B2E;
  border:1px solid var(--stroke);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:all .35s var(--ease);
  min-height:300px;
}
.rail-card:hover{transform:translateY(-6px);border-color:var(--stroke-strong);box-shadow:var(--shadow-1)}
.rail-media{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.85;transition:opacity .3s}
.rail-card:hover .rail-media{opacity:1}
.rail-body{padding:18px 20px 20px}
.rail-body h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:7px}
.rail-body p{font-size:13.5px;color:var(--text-2);line-height:1.6}
.rail-go{display:inline-flex;align-items:center;gap:6px;font-size:13px;margin-top:12px;color:var(--text-2)}
.rail-card:hover .rail-go{color:var(--aqua)}
.rail-go i{font-size:11px}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:rgba(255,255,255,.025);
  border:1px solid var(--stroke);
  border-radius:var(--radius-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .3s,background .3s;
}
.faq-item[open],.faq-item.open{border-color:rgba(52,224,192,.28);background:var(--glass)}
.faq-q{
  list-style:none;display:flex;align-items:center;gap:16px;
  cursor:pointer;padding:20px 24px;
  font-size:17px;font-weight:550;
  transition:background .25s var(--ease);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{background:rgba(255,255,255,.04)}
.faq-q .num{
  font-family:var(--mono);color:var(--gold);font-size:13px;
}
.faq-icon{margin-left:auto;flex:0 0 auto;display:grid;place-items:center;width:24px;height:24px;font-size:13px;color:var(--aqua);transition:transform .3s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 24px 22px 68px;color:var(--text-2);font-size:15px;line-height:1.8}
.faq-a a{color:var(--aqua);text-decoration:underline}
.faq-a a:hover{text-decoration:none}

/* CTA save/share */
.cta-save{padding:64px 0}
.cta-panel{
  position:relative;border-radius:var(--radius-xl);
  overflow:hidden;
  background:linear-gradient(140deg,rgba(47,129,247,.12),rgba(35,50,80,.16));
  backdrop-filter:blur(14px);
  border:1px solid rgba(140,190,255,.2);
  padding:60px 56px;
  display:grid;grid-template-columns:1.2fr .8fr;
  gap:48px;align-items:center;
}
.cta-panel::before{
  content:'';position:absolute;inset:0;background:
  radial-gradient(circle at 80% 20%,rgba(52,224,192,.11),transparent 34%),
  url('/assets/images/backpic/back-2.png') right center/cover no-repeat;
  mix-blend-mode:luminosity;
  opacity:.4;
}
.cta-panel .cta-inner{position:relative;z-index:2}
.cta-panel h2{font-size:clamp(24px,3.3vw,34px);font-weight:700;margin-bottom:15px;letter-spacing:-.01em}
.cta-panel p{max-width:560px;color:var(--text-2);margin-bottom:28px}
.cta-btns{display:flex;flex-wrap:wrap;gap:15px}
.cta-panel .cta-card-side{position:relative;z-index:2;justify-self:end}
.save-card{
  width:280px;border-radius:20px;background:var(--glass);
  backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.14);padding:24px;
  box-shadow:var(--shadow-1);
}
.save-card-head{display:flex;align-items:center;gap:12px;margin-bottom:15px}
.save-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(227,195,107,.11);border:1px solid rgba(227,195,107,.3);
  color:var(--gold);font-size:15px;
}
.save-card h3{font-size:16px;font-weight:600}
.save-card p{font-size:13.5px;color:var(--text-2);line-height:1.6}

/* footer */
.site-footer{
  background:rgba(2,6,12,.85);
  border-top:1px solid rgba(160,200,255,.08);
  padding:64px 0 30px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr 1.2fr;gap:44px;margin-bottom:50px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{color:var(--text-2);font-size:14px;line-height:1.75;max-width:300px}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:18px;color:#DDF}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .25s}
.footer-col a:hover{color:var(--aqua)}
.footer-note{
  border-top:1px solid rgba(160,200,255,.08);
  padding-top:28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--text-3);font-size:13px;
}
.footer-note a{color:var(--text-2)}
.footer-note a:hover{color:var(--aqua)}
.footer-note .dot{margin:0 7px;opacity:.5}

/* back top */
.totop{
  position:fixed;right:24px;bottom:24px;z-index:50;
  display:grid;place-items:center;
  width:42px;height:42px;border-radius:13px;
  background:#101B2E;border:1px solid var(--stroke-strong);
  color:var(--aqua);font-size:14px;opacity:0;pointer-events:none;
  transition:all .35s var(--ease);
  box-shadow:var(--shadow-1);
}
.totop.show{opacity:1;pointer-events:auto}
.totop:hover{background:#162840;transform:translateY(-4px)}
.totop:focus-visible{outline:2px solid var(--aqua);outline-offset:3px}

/* responsive */
@media (min-width:993px) and (max-width:1120px){
  .main-nav{display:flex}
  .nav-link{padding:8px 10px;font-size:14px}
  .search-command{width:155px}
  .search-command input{font-size:12px}
  .brand-text{font-size:16px}
  .dir-grid{gap:16px}
}
@media (max-width:992px){
  .main-nav,.search-command,.header-actions .icon-btn{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .header-cta{margin-left:auto}
  .hero{padding:60px 0 44px;min-height:auto}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-sub{max-width:640px}
  .hero-visual-card{max-width:640px}
  .feature-grid{grid-template-columns:repeat(2,1fr);gap:8px}
  .feat-item{padding:18px 4px}
  .dir-grid{grid-template-columns:repeat(2,1fr)}
  .rail-wrap{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr;padding:42px}
  .cta-panel .cta-card-side{justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .latest-layout{grid-template-columns:1fr;gap:18px}
}
@media (max-width:767px){
  .section{padding:60px 0}
  .container{width:min(100% - 32px,1200px)}
  .brand-text{font-size:15px}
  .brand-text span.full-text{display:none}
  .brand-text span.short-text{display:inline}
  .brand-mark{width:30px;height:30px;font-size:13px;border-radius:8px}
  .header-cta{height:36px;padding:0 15px;font-size:13px}
  .hero-grid{gap:28px}
  .hero h1{font-size:31px;line-height:1.25}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-note{gap:10px}
  .feature-grid{grid-template-columns:1fr}
  .feat-item{padding:16px 0}
  .dir-grid{grid-template-columns:1fr;gap:16px}
  .pick-grid{grid-template-columns:1fr;grid-auto-rows:auto}
  .pick-main{grid-column:1;grid-row:auto;min-height:240px}
  .pick-stack,.pick-stack2,.pick-wide{grid-column:1;min-height:170px}
  .rail-wrap{grid-template-columns:1fr}
  .cta-panel{padding:28px 20px;border-radius:22px}
  .cta-btns .btn{width:100%}
  .cta-panel .cta-card-side{justify-self:stretch;width:100%}
  .save-card{width:100%}
  .cms-row{flex-direction:row;flex-wrap:wrap;padding:16px}
  .cms-thumb{width:66px;height:66px;flex-basis:66px}
  .cms-date{width:100%;padding-left:84px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-note{flex-direction:column}
  .faq-q{font-size:15px;padding:17px 18px}
  .faq-a{padding:0 18px 20px 18px}
  .section-rule{padding:0}
  .icon-btn{display:none}
}
@media (max-width:420px){
  .header-cta{display:none}
  .brand-text{font-size:14px}
  .brand-mark{width:28px;height:28px}
  .nav-toggle{display:inline-flex}
}
.short-text{display:none}
@media (max-width:767px){
  .short-text{display:inline}
}

/* roulang page: article */
:root {
    --bg-deep: #050A14;
    --bg-base: #091120;
    --bg-section: #0C1626;
    --bg-card: #101B2E;
    --glass-bg: rgba(17, 28, 45, 0.65);
    --glass-border: rgba(255, 255, 255, 0.10);
    --primary-blue: #2F81F7;
    --cyan: #34E0C0;
    --gold: #E3C36B;
    --text-main: #EAF2FF;
    --text-sub: #9DB0C8;
    --text-mute: #5F7290;
    --line-card: rgba(160,200,255,0.14);
    --line-card-hover: rgba(120,200,255,0.35);
    --white-highlight: rgba(255,255,255,0.06);
    --radius-sm: 10px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-lift: 0 18px 46px rgba(0,0,0,0.42);
    --shadow-cta: 0 8px 30px rgba(35,233,196,0.30);
    --font-family: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,sans-serif;
    --container-w: 1200px;
    --transition-all: .25s cubic-bezier(.2,.5,.2,.9);
  }
  *,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    font-family:var(--font-family);
    background:var(--bg-deep);
    color:var(--text-main);
    line-height:1.75;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    background:
      radial-gradient(1200px 700px at 15% -5%, rgba(47,129,247,.14), transparent 60%),
      radial-gradient(900px 650px at 100% 25%, rgba(52,224,192,.06), transparent 50%),
      radial-gradient(1000px 700px at 50% 115%, rgba(227,195,107,.08), transparent 60%);
    pointer-events:none;
    z-index:0;
  }
  img{max-width:100%;display:block;border-radius:16px;}
  a{color:var(--cyan);text-decoration:none;transition:color .2s;}
  a:hover{color:var(--cyan);}
  ul{list-style:none;}
  button{font-family:var(--font-family);cursor:pointer;}
  input{font-family:var(--font-family);}
  .container{position:relative;z-index:1;max-width:var(--container-w);margin:0 auto;padding:0 24px;}
  .site-header{
    position:sticky;top:0;z-index:100;height:72px;
    background:rgba(6,12,23,.5);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid rgba(255,255,255,.06);
    transition:background .3s ease;
  }
  .site-header.scrolled{
    background:rgba(8,16,30,.85);
    border-bottom-color:rgba(255,255,255,.1);
  }
  .header-inner{display:flex;align-items:center;gap:24px;height:72px;}
  .brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
  .brand-mark{
    width:38px;height:38px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--primary-blue),var(--cyan));
    color:#08101B;font-size:17px;
    box-shadow:0 6px 18px rgba(47,129,247,.4);
  }
  .brand-text{font-weight:700;font-size:19px;letter-spacing:0.5px;color:var(--text-main);white-space:nowrap;}
  .brand-text .short-text{display:none;}
  .main-nav{display:flex;align-items:center;gap:30px;margin-left:20px;}
  .main-nav a{
    position:relative;font-size:15px;color:var(--text-sub);font-weight:500;
    padding:8px 2px;white-space:nowrap;transition:color .2s;
  }
  .main-nav a::after{
    content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
    background:var(--cyan);border-radius:2px;transition:width .3s ease;
  }
  .main-nav a:hover{color:var(--text-main);}
  .main-nav a.active{color:var(--text-main);}
  .main-nav a.active::after{width:24px;}
  .search-command{
    display:flex;align-items:center;gap:8px;margin-left:auto;
    width:200px;height:36px;padding:0 12px;
    background:rgba(255,255,255,0.045);
    border:1px solid rgba(255,255,255,.1);
    border-radius:24px;transition:border-color .2s,background .2s;
  }
  .search-command i{color:var(--text-mute);font-size:13px;}
  .search-command input{
    flex:1;background:transparent;border:none;outline:none;color:var(--text-main);
    font-size:13px;min-width:0;
  }
  .search-command input::placeholder{color:#71849F;}
  .search-command kbd{
    font-size:10px;padding:2px 7px;border-radius:5px;color:var(--text-sub);
    background:rgba(255,255,255,.07);
    border:1px solid rgba(255,255,255,.08);
    font-family:inherit;
  }
  .header-actions{display:flex;align-items:center;gap:10px;}
  .icon-btn{
    width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.1);
    background:transparent;color:var(--text-sub);display:flex;align-items:center;justify-content:center;
    transition:all .22s ease;
  }
  .icon-btn:hover{color:var(--gold);border-color:rgba(227,195,107,.5);transform:translateY(-1px);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:7px;
    border-radius:var(--radius-md);height:42px;padding:0 20px;
    font-size:15px;font-weight:600;transition:all .22s ease;white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--primary-blue),var(--cyan));
    color:#061013;box-shadow:0 8px 26px rgba(47,129,247,.4);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 9px 34px rgba(52,224,192,.36);color:#081018;}
  .btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px rgba(47,129,247,.3);}
  .header-cta{height:38px;padding:0 14px;font-size:13px;border-radius:8px;}
  .nav-toggle{
    display:none;width:40px;height:40px;border-radius:10px;
    background:rgba(255,255,255,.06);border:1px solid var(--line-card);color:var(--text-main);
    align-items:center;justify-content:center;font-size:18px;
  }
  .btn:focus-visible,.icon-btn:focus-visible,.nav-link:focus-visible,.search-command:has(input:focus){
    outline:2px solid var(--cyan);outline-offset:2px;
  }
  .main-nav a.active{display:inline-block;}
  @media (max-width: 1024px) {
    .main-nav{gap:20px;margin-left:8px;}
    .main-nav a{font-size:14px;}
    .search-command{width:160px;}
    .header-cta span{display:none;}
  }
  @media (max-width: 980px) {
    .site-header{height:auto;min-height:64px;}
    .header-inner{flex-wrap:nowrap;height:64px;gap:12px;}
    .main-nav{
      display:none;
      position:absolute;top:64px;left:0;right:0;flex-direction:column;
      gap:0;background:rgba(9,17,32,.96);backdrop-filter:blur(24px);
      border-bottom:1px solid var(--line-card);margin:0;padding:8px 16px;
      transition:height .2s ease;
    }
    .main-nav.open{display:flex;}
    .main-nav a{padding:13px 8px;width:100%;border-bottom:1px solid rgba(255,255,255,.04);}
    .main-nav a:last-child{border-bottom:none;}
    .nav-toggle{display:inline-flex;}
    .brand-text .full-text{display:none;}
    .brand-text .short-text{display:inline;font-size:16px;}
  }
  @media (max-width: 640px) {
    .container{padding:0 16px;}
    .header-actions .icon-btn{display:none;}
    .search-command{display:none;}
    .header-cta{height:36px;padding:0 10px;font-size:12px;}
  }

  /* page hero */
  .page-hero{
    position:relative;padding:60px 0 44px;overflow:hidden;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(135deg, rgba(12,22,38,.92), rgba(5,10,20,.86)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    opacity:0.7;z-index:0;
  }
  .page-hero .container{position:relative;z-index:2;}
  .breadcrumb{
    display:flex;align-items:center;gap:12px;margin-bottom:24px;
    font-size:13px;color:var(--text-mute);
  }
  .breadcrumb a{color:var(--text-sub);}
  .breadcrumb a:hover{color:var(--cyan);}
  .breadcrumb .separator{color:#4a5c77;}
  .breadcrumb .current{color:var(--text-main);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:300px;}
  @media(max-width:640px){.breadcrumb .current{max-width:180px;}}
  .article-hero-content h1{
    font-size:clamp(28px, 4.2vw, 42px);line-height:1.25;font-weight:700;
    color:var(--text-main);letter-spacing:0.3px;max-width:860px;
  }
  .article-meta{
    display:flex;align-items:center;flex-wrap:wrap;gap:12px 22px;margin-top:20px;
    color:var(--text-sub);font-size:14px;
  }
  .meta-item{display:inline-flex;align-items:center;gap:7px;}
  .meta-item i{color:var(--gold);opacity:.8;}
  .meta-cat{
    padding:4px 12px;border-radius:20px;background:rgba(47,129,247,.12);
    border:1px solid rgba(47,129,247,.4);color:var(--primary-blue);
    font-size:12px;font-weight:600;
  }
  .article-layer{position:relative;z-index:2;padding-bottom:30px;}

  .article-main-layout{
    display:grid;grid-template-columns:minmax(0,830px) minmax(0,290px);
    gap:52px;align-items:start;
  }
  .article-content-body{min-width:0;}
  .article-panel{
    background:rgba(255,255,255,0.025);
    border:1px solid var(--line-card);padding:42px 46px;
    border-radius:var(--radius-xl);
    backdrop-filter:blur(6px);
    box-shadow:0 24px 54px rgba(0,0,0,.22);
  }
  .article-text{
    font-size:16.5px;line-height:1.95;color:var(--text-main);
  }
  .article-text p{margin:0 0 22px;}
  .article-text h2{
    font-size:1.55rem;font-weight:700;color:var(--text-main);margin:42px 0 18px;
    padding-left:14px;border-left:4px solid var(--cyan);line-height:1.4;
  }
  .article-text h3{
    font-size:1.25rem;font-weight:600;margin:30px 0 14px;color:var(--text-main);
  }
  .article-text img{
    border-radius:16px;margin:26px 0;width:100%;height:auto;
  }
  .article-text blockquote{
    margin:28px 0;padding:18px 26px;background:rgba(47,129,247,.09);
    border-left:4px solid var(--primary-blue);border-radius:0 14px 14px 0;
    color:var(--text-sub);font-size:1.02rem;
  }
  .article-text blockquote p{margin:0;}
  .article-text ol,.article-text ul{margin:0 0 24px;padding-left:22px;}
  .article-text li{margin-bottom:8px;}
  .article-text ul li{list-style:disc;}
  .article-text ol li{list-style:decimal;}
  .article-text a{color:var(--primary-blue);text-decoration:underline;text-underline-offset:4px;}
  .article-text a:hover{color:var(--cyan);}
  .article-text code{
    background:rgba(47,129,247,.08);padding:3px 9px;border-radius:6px;
    font-size:14px;color:var(--cyan);
  }
  .article-text pre{
    background:#0A1322;border:1px solid var(--line-card);padding:20px 24px;
    border-radius:14px;overflow-x:auto;margin-bottom:24px;line-height:1.6;
  }
  .article-text pre code{background:none;padding:0;color:#B7C9E3;}
  .article-text table{width:100%;border-collapse:collapse;margin:26px 0;}
  .article-text th,.article-text td{
    padding:12px 15px;border:1px solid var(--line-card);text-align:left;
  }
  .article-text th{background:rgba(255,255,255,.05);color:var(--cyan);font-weight:600;}
  .article-text td{color:var(--text-sub);}

  .article-sidebar{display:flex;flex-direction:column;gap:28px;}
  .side-widget{
    background:rgba(255,255,255,0.025);
    padding:24px;border-radius:var(--radius-lg);
    border:1px solid var(--line-card);
  }
  .side-widget h3{
    font-size:15px;font-weight:600;color:var(--text-main);margin-bottom:18px;
    display:flex;align-items:center;gap:8px;
  }
  .side-widget h3 i{color:var(--gold);font-size:14px;}
  .widget-tag-list{display:flex;flex-wrap:wrap;gap:9px;}
  .tag{
    display:inline-block;padding:5px 13px;border-radius:20px;
    background:rgba(255,255,255,.045);border:1px solid var(--line-card);
    color:var(--text-sub);font-size:13px;transition:all .2s;
  }
  .tag:hover{color:var(--cyan);border-color:var(--cyan);}
  .side-links{display:flex;flex-direction:column;}
  .side-links a{
    padding:11px 0;border-bottom:1px solid rgba(255,255,255,.05);
    color:var(--text-sub);font-size:14px;
    display:flex;justify-content:space-between;align-items:center;gap:8px;
  }
  .side-links a:last-child{border-bottom:none;}
  .side-links a i{font-size:11px;transition:transform .2s;}
  .side-links a:hover{color:var(--cyan);}
  .side-links a:hover i{transform:translateX(3px);}
  .widget-cta-tip{background:linear-gradient(145deg, rgba(28,40,65,.7), rgba(10,18,33,.8));}
  .widget-cta-tip p{font-size:13px;color:var(--text-sub);line-height:1.8;margin-bottom:14px;}
  .widget-cta-link{font-size:14px;color:var(--cyan);display:inline-flex;gap:6px;align-items:center;font-weight:500;}
  @media(max-width:1000px){
    .article-main-layout{grid-template-columns:minmax(0,1fr);gap:30px;}
    .article-sidebar{flex-direction:row;flex-wrap:wrap;}
    .side-widget{flex:1;min-width:220px;}
  }
  @media(max-width:768px){
    .article-panel{padding:26px 20px;border-radius:20px;}
    .article-text{font-size:16px;line-height:1.85;}
    .article-text h2{font-size:1.3rem;}
    .side-widget{flex:1 1 100%;}
  }

  /* tag */
  .article-footer-nav{
    margin-top:40px;padding-top:30px;border-top:1px solid var(--line-card);
  }
  .tag-section-title{
    display:flex;align-items:flex-start;justify-content:space-between;
    gap:20px;margin-bottom:24px;
  }
  .tag-section-title .title-wrap h2{font-size:clamp(24px,3vw,34px);font-weight:700;color:var(--text-main);}
  .tag-section-title .title-wrap p{font-size:14px;color:var(--text-sub);margin-top:7px;}
  .tag-related-grid{
    display:grid;grid-template-columns:1fr;gap:22px;
  }
  .related-card-row{
    display:flex;align-items:flex-start;gap:20px;padding:22px 0;
    border-bottom:1px solid rgba(255,255,255,.06);transition:all .22s;
  }
  .related-card-row:last-child{border-bottom:none;}
  .related-card-img{
    flex-shrink:0;width:112px;height:75px;border-radius:12px;
    position:relative;overflow:hidden;background:#0d1930;
  }
  .related-card-img img{width:100%;height:100%;object-fit:cover;border-radius:12px;}
  .related-card-info h3{font-size:16px;font-weight:600;color:var(--text-main);line-height:1.5;margin-bottom:6px;}
  .related-card-info h3 a{color:inherit;transition:color .2s;}
  .related-card-info h3 a:hover{color:var(--cyan);}
  .related-card-info p{font-size:14px;color:var(--text-sub);}
  .more-link{color:var(--cyan);font-size:14px;font-weight:500;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
  @media(max-width:600px){
    .related-card-img{width:90px;height:70px;}
    .related-card-info h3{font-size:14px;}
    .related-card-info p{display:none;}
  }

  /* empty */
  .empty-post{
    background:rgba(255,255,255,0.02);border:1px solid var(--line-card);
    border-radius:var(--radius-lg);padding:64px 24px;text-align:center;
  }
  .empty-post h2{font-size:24px;margin-bottom:10px;color:var(--text-main);}
  .empty-post p{color:var(--text-sub);font-size:15px;margin-bottom:22px;}
  .empty-cta{display:inline-flex;gap:10px;align-items:center;color:var(--cyan);background:rgba(52,224,192,.1);padding:10px 20px;border-radius:8px;font-weight:500;transition:all .2s;}
  .empty-cta:hover{background:rgba(52,224,192,.2);transform:translateX(3px);}

  /* footer */
  .site-footer{
    background:#050b15;border-top:1px solid var(--line-card);
    margin-top:60px;padding:64px 0 20px;position:relative;z-index:1;
  }
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:10%;right:10%;height:1px;
    background:linear-gradient(90deg,transparent,rgba(47,129,247,.6),transparent);
  }
  .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;}
  .footer-brand .brand-text{font-size:18px;}
  .footer-brand .brand-text:hover{color:var(--text-main);}
  .footer-desc{font-size:14px;line-height:1.9;color:var(--text-mute);margin:15px 0 0;max-width:330px;}
  .footer-col h4{
    font-size:15px;font-weight:600;color:var(--text-main);margin-bottom:18px;
    position:relative;padding-bottom:10px;
  }
  .footer-col h4::after{
    content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;
    background:linear-gradient(90deg,var(--primary-blue),var(--cyan));
    border-radius:2px;
  }
  .footer-col ul li{margin-bottom:11px;}
  .footer-col ul li a{font-size:14px;color:var(--text-sub);transition:color .2s,padding-left .2s;}
  .footer-col ul li a:hover{color:var(--cyan);padding-left:5px;}
  .footer-note{
    margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.06);
    display:flex;justify-content:space-between;align-items:flex-start;gap:14px;flex-wrap:wrap;
    color:var(--text-mute);font-size:13px;
  }
  .footer-note a{color:var(--text-mute);}
  .footer-note a:hover{color:var(--cyan);}
  .footer-note .dot{margin:0 8px;}
  @media(max-width:900px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  }
  @media(max-width:640px){
    .footer-grid{grid-template-columns:1fr;gap:24px;}
    .footer-note{flex-direction:column;}
  }

  @media (max-width: 600px) {
    .brand-text{letter-spacing:0;}
    .search-command{display:none;}
  }
  @media (max-width: 480px){
    .header-inner{gap:8px;}
    .brand-text{font-size:15px;}
    .brand-mark{width:34px;height:34px;}
    .main-nav a{font-size:14px;padding:14px 4px;}
    .header-cta{font-size:11px;padding:0 9px;height:34px;}
  }

/* roulang page: category1 */
:root {
  --bg: #050A14;
  --bg-elev: #0C1626;
  --bg-card: #101B2E;
  --blue: #2F81F7;
  --cyan: #34E0C0;
  --gold: #E3C36B;
  --text: #EAF2FF;
  --muted: #9DB0C8;
  --muted-2: #5F7290;
  --border: rgba(160, 200, 255, 0.14);
  --border-strong: rgba(120, 200, 255, 0.35);
  --glass: rgba(17, 28, 45, 0.55);
  --gradient: linear-gradient(135deg, #2F81F7 0%, #34E0C0 100%);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --header-h: 72px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(circle at 80% -10%, rgba(47, 129, 247, 0.13), transparent 34rem),
    radial-gradient(circle at 10% 118%, rgba(52, 224, 192, 0.07), transparent 26rem),
    var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input { font: inherit; color: inherit; }
button { border: none; background: none; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 6px;
}
::selection { background: rgba(52, 224, 192, 0.28); color: #fff; }
.container { width: min(1200px, 92%); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  height: var(--header-h);
  background: rgba(5, 10, 20, 0.7);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.site-header.scrolled {
  background: rgba(11, 20, 35, 0.76);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 22px;
  height: var(--header-h);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(145deg, #2F81F7, #15B7AA);
  box-shadow: 0 0 18px rgba(52, 224, 192, 0.24), inset 0 0 0 1px rgba(255, 255, 255, 0.16);
  color: #061A26;
  font-size: 18px;
}
.brand-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.4px;
  white-space: nowrap;
}
.brand .short-text { display: none; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 14px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 12px 12px;
  color: var(--muted);
  font-size: 15px;
  position: relative;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 7px;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.22s ease, opacity 0.22s ease;
  opacity: 0;
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link.active::after, .nav-link:hover::after { transform: scaleX(1); opacity: 1; }
.search-command {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 212px;
  height: 38px;
  padding: 0 13px;
  background: rgba(13, 23, 40, 0.92);
  border: 1px solid rgba(160, 200, 255, 0.12);
  border-radius: 999px;
  color: var(--muted);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-command:focus-within {
  border-color: rgba(52, 224, 192, 0.55);
  box-shadow: 0 0 0 3px rgba(52, 224, 192, 0.1);
}
.search-command i { font-size: 14px; opacity: 0.9; }
.search-command input {
  width: 100%;
  border: 0;
  background: transparent;
  outline: none;
  color: var(--text);
  font-size: 14px;
}
.search-command input::placeholder { color: #71849F; }
.search-command kbd {
  background: rgba(160, 200, 255, 0.1);
  border: 1px solid rgba(160, 200, 255, 0.16);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 0 6px;
  font-size: 11px;
  color: #AFC6E4;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.icon-btn {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(160, 200, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.icon-btn:hover { color: var(--gold); border-color: rgba(227, 195, 107, 0.42); transform: translateY(-1px); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 11px 20px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}
.btn-primary {
  background: var(--gradient);
  color: #02151C;
  box-shadow: 0 8px 24px rgba(47, 129, 247, 0.28);
}
.btn-primary:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(52, 224, 192, 0.24);
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  border: 1px solid rgba(160, 200, 255, 0.26);
  color: #CDDDF2;
}
.btn-outline:hover { border-color: var(--cyan); color: #fff; background: rgba(52, 224, 192, 0.06); }
.btn-ghost { background: rgba(255, 255, 255, 0.04); color: var(--muted); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); color: var(--text); }
.header-cta { height: 40px; padding: 0 18px; }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid rgba(160, 200, 255, 0.14);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
}

/* banner */
.category-banner {
  position: relative;
  padding: 96px 0;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.category-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 10, 20, 0.97), rgba(5, 10, 20, 0.72) 48%, rgba(5, 10, 20, 0.38)),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  z-index: 0;
}
.category-banner::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -90px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(52, 224, 192, 0.16), transparent 68%);
  z-index: 0;
}
.banner-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  padding: 46px 48px;
  border-radius: 28px;
  background: rgba(10, 17, 28, 0.55);
  border: 1px solid rgba(160, 200, 255, 0.18);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb .sep { opacity: 0.55; }
.banner-content h1 {
  font-size: clamp(32px, 5vw, 50px);
  line-height: 1.18;
  margin: 20px 0 16px;
  font-weight: 700;
}
.banner-lead {
  max-width: 630px;
  color: #C6D6EA;
  font-size: 17px;
}
.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(52, 224, 192, 0.28);
  background: rgba(52, 224, 192, 0.07);
  color: #9FD8CE;
  font-size: 13px;
}

/* main layout */
.category-layout { padding: 76px 0 24px; }
.cat-grid {
  display: grid;
  grid-template-columns: 288px minmax(0, 1fr);
  gap: 38px;
  align-items: start;
}
.cat-sidebar { position: sticky; top: 100px; display: flex; flex-direction: column; gap: 18px; }
.side-card {
  background: rgba(16, 27, 46, 0.78);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 22px 20px;
}
.side-card h3 {
  font-size: 15px;
  color: #C4D6EF;
  letter-spacing: 0.4px;
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 8px;
}
.side-card h3 i { color: var(--cyan); font-size: 14px; }
.anchor-nav {
  display: flex;
  flex-direction: column;
  margin-top: 6px;
}
.anchor-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 10px;
  margin: 0 -10px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 14px;
  transition: background 0.2s ease, color 0.2s ease;
}
.anchor-nav a .num { color: var(--gold); font-variant-numeric: tabular-nums; width: 24px; }
.anchor-nav a:hover, .anchor-nav a.active { background: rgba(160, 200, 255, 0.06); color: var(--text); }
.sidebar-divider { height: 1px; background: var(--border); margin: 18px 0 16px; }
.side-card p { font-size: 14px; color: var(--muted); margin-bottom: 14px; }
.side-card .btn { width: 100%; }
.cat-main { display: flex; flex-direction: column; gap: 30px; }
.cat-item {
  position: relative;
  display: grid;
  grid-template-columns: 46% 54%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.cat-item:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.cat-item-media {
  min-height: 300px;
  background: #0B1624;
  overflow: hidden;
}
.cat-item-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.cat-item:hover .cat-item-media img { transform: scale(1.03); }
.cat-item:nth-child(even) .cat-item-media { order: 2; }
.cat-item-body {
  padding: 30px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}
.cat-item-index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 700;
}
.cat-item-index span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(52, 224, 192, 0.1);
  border: 1px solid rgba(52, 224, 192, 0.24);
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}
.cat-item-body h3 { margin: 13px 0 10px; font-size: clamp(21px, 2vw, 26px); line-height: 1.3; }
.cat-item-body > p { color: var(--muted); font-size: 15px; margin-bottom: 14px; }
.check-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  width: 100%;
  margin: 6px 0 18px;
  color: #C4D6EF;
  font-size: 14px;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
}
.check-list li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 12px;
  color: var(--cyan);
  margin-top: 4px;
}
.item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
  font-size: 15px;
  font-weight: 600;
}
.card-link:hover { color: #8CF0DD; }
.card-link i { font-size: 13px; transition: transform 0.2s ease; }
.card-link:hover i { transform: translateX(4px); }

/* CTA */
.cat-cta { padding: 64px 0 16px; }
.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  padding: 38px 42px;
  border-radius: var(--radius-lg);
  background: linear-gradient(115deg, rgba(16, 27, 46, 0.9), rgba(12, 22, 38, 0.7));
  border: 1px solid var(--border);
}
.cta-panel h2 { font-size: clamp(21px, 2.5vw, 28px); margin-bottom: 8px; }
.cta-panel p { color: var(--muted); max-width: 560px; }
.cta-panel .btn-group { display: flex; flex-wrap: wrap; gap: 12px; flex-shrink: 0; }

/* FAQ */
.faq-section {
  padding: 76px 0 70px;
  background: rgba(10, 17, 28, 0.35);
  border-top: 1px solid rgba(160, 200, 255, 0.08);
}
.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 34px;
}
.section-kicker { color: var(--gold); font-size: 13px; letter-spacing: 1px; flex-shrink: 0; }
.section-head h2 { font-size: clamp(24px, 3vw, 34px); }
.faq-wrap { max-width: 860px; margin-inline: auto; }
.faq-item {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(12, 22, 38, 0.5);
  overflow: hidden;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.faq-item.open {
  background: var(--glass);
  border-color: rgba(52, 224, 192, 0.35);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  padding: 20px 24px;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}
.faq-q:hover { color: #fff; }
.faq-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(160, 200, 255, 0.26);
  border-radius: 50%;
  color: var(--cyan);
  transition: transform 0.28s ease, background 0.28s ease, color 0.28s ease;
}
.faq-item.open .faq-icon { transform: rotate(135deg); background: rgba(52, 224, 192, 0.12); border-color: var(--cyan); }
.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-a-inner { overflow: hidden; }
.faq-a p { padding: 0 24px 22px; color: var(--muted); font-size: 15px; line-height: 1.9; }

/* neighbor */
.neighbor-section { padding: 68px 0 72px; }
.neighbor-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  padding: 32px 36px;
  border-radius: 20px;
  background: var(--glass);
  border: 1px solid rgba(160, 200, 255, 0.16);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}
.neighbor-panel h3 { font-size: 22px; margin-bottom: 6px; }
.neighbor-panel p { color: var(--muted); font-size: 15px; }

/* Footer */
.site-footer {
  background: #060B14;
  border-top: 1px solid rgba(160, 200, 255, 0.1);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 36px;
  padding: 56px 0 32px;
}
.footer-brand .brand-text { color: var(--text); }
.footer-desc { color: var(--muted); font-size: 14px; margin-top: 13px; max-width: 340px; }
.footer-col h4 { color: #C6D6EA; font-size: 15px; margin-bottom: 15px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--muted); font-size: 14px; transition: color 0.2s ease; }
.footer-col a:hover { color: var(--cyan); }
.footer-note {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid rgba(160, 200, 255, 0.08);
  padding: 20px 0;
  color: var(--muted-2);
  font-size: 13px;
}
.footer-note a { color: var(--muted); transition: color 0.2s ease; }
.footer-note a:hover { color: var(--cyan); }
.footer-note .dot { margin: 0 8px; }

/* Responsive */
@media (max-width: 1120px) {
  .search-command { display: none; }
  .header-actions { margin-left: auto; }
  .nav-toggle { display: grid; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(6, 12, 23, 0.98);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin: 0;
    padding: 16px 24px 24px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    visibility: hidden;
    transition: opacity 0.24s ease, transform 0.24s ease, visibility 0.24s;
  }
  body.nav-open .main-nav {
    opacity: 1;
    pointer-events: auto;
    transform: none;
    visibility: visible;
  }
  .main-nav .nav-link { width: 100%; padding: 13px 0; font-size: 16px; border-bottom: 1px solid rgba(160, 200, 255, 0.1); }
  .main-nav .nav-link::after { display: none; }
  .cta-panel, .neighbor-panel { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 992px) {
  .category-banner { padding: 64px 0; }
  .banner-content { padding: 34px 28px; }
  .cat-grid { grid-template-columns: 1fr; gap: 28px; }
  .cat-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: stretch; }
  .cat-main { gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .banner-content h1 { font-size: 32px; }
  .cat-sidebar { grid-template-columns: 1fr; }
  .cat-item { grid-template-columns: 1fr; }
  .cat-item:nth-child(even) .cat-item-media { order: 0; }
  .cat-item-media { min-height: 220px; max-height: 260px; }
  .cat-item-body { padding: 24px 22px; }
  .cta-panel { padding: 28px 24px; }
  .btn-group .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-top: 44px; }
  .footer-note { flex-direction: column; }
  .full-text { display: none; }
  .brand .short-text { display: inline; }
  .header-cta { height: 38px; padding: 0 13px; font-size: 14px; }
}

/* roulang page: category2 */
:root{
  --base:#050A14;
  --panel:#0C1626;
  --panel-light:#101B2E;
  --teal:#34E0C0;
  --blue:#2F81F7;
  --gold:#E3C36B;
  --text:#EAF2FF;
  --text-soft:#9DB0C8;
  --muted:#71849F;
  --line:rgba(160,200,255,.14);
  --line-hover:rgba(120,200,255,.35);
  --glass-bg:rgba(17,28,45,.55);
  --card-bg:rgba(255,255,255,.04);
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:24px;
  --container:1200px;
  --section-y:88px;
  --shadow:0 18px 50px rgba(0,0,0,.28);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
[id]{scroll-margin-top:110px}
body{
  background:
    radial-gradient(800px at 80% -5%, rgba(47,129,247,.16), transparent 60%),
    radial-gradient(700px at -5% 25%, rgba(52,224,192,.09), transparent 55%),
    var(--base);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
a,button,input,summary{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--teal);
  outline-offset:3px;
  border-radius:6px;
}
img{display:block;max-width:100%;height:auto}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.25;text-wrap:balance}
.container{width:min(var(--container),100% - 48px);margin-inline:auto}
img::selection{background:rgba(52,224,192,.3)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--teal);
  padding:7px 14px;
  border:1px solid rgba(52,224,192,.28);
  border-radius:999px;
  background:rgba(52,224,192,.06);
  margin-bottom:22px;
}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:34px;
}
.section-kicker{
  display:block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--gold);
  margin-bottom:10px;
  text-transform:none;
}
.section-head h2,.section-title{
  font-size:clamp(26px,3.4vw,36px);
  font-weight:700;
  color:var(--text);
  letter-spacing:0;
}
.section-lead{
  max-width:640px;
  color:var(--text-soft);
  font-size:15px;
}
.section-lead a,.text-link{
  color:var(--teal);
  text-decoration:underline;
  text-decoration-color:rgba(52,224,192,.5);
  text-underline-offset:5px;
  transition:color .2s,text-decoration-color .2s;
}
.section-lead a:hover,.text-link:hover{color:var(--gold);text-decoration-color:var(--gold)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:44px;
  padding:.75rem 1.4rem;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  font-family:inherit;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn i{font-size:15px}
.btn:active{transform:translateY(1px)}
.btn-primary{
  color:#03162d;
  background:linear-gradient(135deg,var(--blue),var(--teal));
  box-shadow:0 10px 30px rgba(47,129,247,.25),0 8px 28px rgba(52,224,192,.14);
}
.btn-primary:hover{
  filter:brightness(1.08);
  box-shadow:0 14px 38px rgba(47,129,247,.32),0 12px 34px rgba(52,224,192,.2);
  transform:translateY(-2px);
}
.btn-secondary{
  background:rgba(47,129,247,.05);
  border-color:rgba(92,160,255,.42);
  color:var(--text);
}
.btn-secondary:hover{
  border-color:var(--teal);
  color:var(--teal);
  background:rgba(52,224,192,.08);
  transform:translateY(-2px);
  box-shadow:0 12px 30px rgba(52,224,192,.12);
}
.btn-gold{
  background:linear-gradient(135deg,var(--gold),#ce9f3c);
  color:#201a08;
  box-shadow:0 10px 30px rgba(227,195,107,.18);
}
.btn-gold:hover{
  filter:brightness(1.05);
  transform:translateY(-2px);
  box-shadow:0 14px 34px rgba(227,195,107,.28);
}
.btn-sm{min-height:38px;padding:.4rem .95rem;font-size:14px}
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  height:72px;
  background:rgba(5,10,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(160,200,255,.08);
  transition:background .3s,border-color .3s,box-shadow .3s;
}
.site-header.is-scrolled{
  background:rgba(6,13,25,.92);
  border-bottom-color:rgba(160,200,255,.14);
  box-shadow:0 12px 28px rgba(0,0,0,.22);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;
  height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--blue),var(--teal));
  color:#03162d;
  font-size:16px;
  box-shadow:0 8px 24px rgba(47,129,247,.25),inset 0 1px 0 rgba(255,255,255,.3);
}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  letter-spacing:0;
  white-space:nowrap;
}
.brand-text .full-text{color:inherit}
.brand-text .short-text{display:none}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:20px;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  padding:.5rem .78rem;
  border-radius:10px;
  color:var(--text-soft);
  font-weight:500;
  font-size:15px;
  position:relative;
  transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.active{
  color:var(--teal);
  font-weight:600;
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:1rem;
  right:1rem;
  bottom:.2rem;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--teal),transparent);
}
.search-command{
  display:flex;
  align-items:center;
  gap:8px;
  height:38px;
  width:200px;
  padding:0 12px;
  border:1px solid rgba(160,200,255,.15);
  border-radius:12px;
  background:rgba(10,18,32,.72);
  color:var(--muted);
  cursor:text;
  transition:border-color .2s,box-shadow .2s;
}
.search-command:focus-within{
  border-color:rgba(52,224,192,.55);
  box-shadow:0 0 0 3px rgba(52,224,192,.15);
}
.search-command i{font-size:13px}
.search-command input{
  flex:1;
  min-width:0;
  border:none;
  background:transparent;
  font-size:13px;
  color:var(--text);
  font-family:inherit;
}
.search-command input:focus{outline:none}
.search-command input::placeholder{color:#5A718C}
.search-command kbd{
  font-family:inherit;
  font-size:11px;
  color:#91A5BD;
  border:1px solid rgba(160,200,255,.18);
  border-radius:5px;
  padding:2px 6px;
  background:rgba(255,255,255,.04);
  font-weight:500;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
}
.icon-btn{
  width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  color:var(--text-soft);
  background:rgba(255,255,255,.03);
  border:1px solid rgba(160,200,255,.14);
  cursor:pointer;
  transition:color .2s,border-color .2s,background .2s,transform .2s;
}
.icon-btn:hover{
  color:var(--gold);
  border-color:rgba(227,195,107,.45);
  background:rgba(227,195,107,.1);
  transform:translateY(-2px);
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(160,200,255,.16);
  color:var(--text);
  font-size:18px;
  cursor:pointer;
}
.hero-section{
  position:relative;
  min-height:88vh;
  display:flex;
  align-items:center;
  padding:150px 0 90px;
  isolation:isolate;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  z-index:-2;
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(5,10,20,.88) 0%,rgba(5,10,20,.64) 45%,rgba(5,10,20,.34) 100%),
    linear-gradient(0deg,rgba(5,10,20,.92) 0%,transparent 45%);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) 360px;
  align-items:center;
  gap:70px;
}
.hero-copy{max-width:760px}
.hero-copy h1{
  font-size:clamp(32px,5vw,52px);
  font-weight:700;
  line-height:1.15;
  color:var(--text);
  margin-bottom:24px;
  letter-spacing:0;
  text-shadow:0 12px 34px rgba(0,0,0,.3);
}
.hero-copy h1 .dot{color:var(--gold);padding:0 .12em}
.hero-sub{
  color:var(--text-soft);
  font-size:17px;
  line-height:1.85;
  max-width:640px;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:42px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-stats li{
  background:rgba(12,22,38,.6);
  backdrop-filter:blur(10px);
  border:1px solid rgba(160,200,255,.16);
  border-radius:14px;
  padding:12px 20px;
  display:flex;
  align-items:baseline;
  gap:8px;
  min-width:112px;
}
.hero-stats strong{
  font-size:26px;
  font-weight:700;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.hero-stats span{font-size:13px;color:var(--text-soft)}
.hero-aside{
  position:relative;
}
.hero-floating-card{
  background:rgba(17,28,45,.55);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:20px;
  padding:12px;
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.hero-floating-card .img-wrap{
  border-radius:14px;
  overflow:hidden;
  background:#0B1424;
}
.hero-floating-card img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
}
.floating-info{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 8px 6px;
}
.floating-info strong{
  font-size:15px;
  font-weight:600;
}
.floating-info span{
  font-size:12px;
  color:var(--gold);
  border:1px solid rgba(227,195,107,.3);
  background:rgba(227,195,107,.07);
  border-radius:999px;
  padding:2px 9px;
  white-space:nowrap;
}
.chapter-section{
  padding:var(--section-y) 0 70px;
  position:relative;
}
.chapter-section::before{
  content:"";
  position:absolute;
  top:0;
  left:50%;
  transform:translateX(-50%);
  width:60%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(52,224,192,.18),transparent);
  pointer-events:none;
}
.chapter-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:42px;
  align-items:start;
}
.chapter-copy h2{
  font-size:clamp(28px,3.4vw,36px);
  color:var(--text);
  line-height:1.3;
  margin-bottom:18px;
}
.chapter-copy p{
  color:var(--text-soft);
  font-size:16px;
  line-height:1.9;
}
.chapter-copy .notice{
  margin-top:20px;
  display:flex;
  gap:12px;
  color:var(--text-soft);
  font-size:14px;
  background:rgba(52,224,192,.06);
  border:1px dashed rgba(52,224,192,.28);
  padding:14px 16px;
  border-radius:14px;
}
.chapter-copy .notice i{color:var(--teal);margin-top:4px}
.chapter-list{
  display:grid;
  gap:14px;
}
.chapter-item{
  display:flex;
  align-items:center;
  gap:16px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(160,200,255,.13);
  border-radius:16px;
  padding:15px 18px;
  transition:border-color .2s,background .2s,transform .2s;
  color:var(--text);
}
.chapter-item:hover{
  transform:translateX(4px);
  border-color:rgba(52,224,192,.42);
  background:rgba(52,224,192,.06);
}
.chapter-item .num{
  font-size:22px;
  font-weight:700;
  color:var(--gold);
  line-height:1;
  font-variant-numeric:tabular-nums;
  min-width:34px;
}
.chapter-item i{
  margin-left:auto;
  color:var(--text-soft);
  transition:transform .2s,color .2s;
}
.chapter-item:hover i{
  color:var(--teal);
  transform:translateX(3px);
}
.chapter-item .chapter-title strong{
  display:block;
  font-size:15px;
  font-weight:600;
  color:var(--text);
}
.chapter-item .chapter-title small{
  display:block;
  color:var(--muted);
  font-size:12px;
  line-height:1.6;
  margin-top:3px;
}
.master-section{
  padding:30px 0 var(--section-y);
  position:relative;
}
.master-section::before{
  content:"";
  position:absolute;
  width:260px;
  height:260px;
  top:80px;
  left:-120px;
  border-radius:50%;
  background:rgba(47,129,247,.12);
  filter:blur(90px);
  pointer-events:none;
}
.deck-stack{
  display:grid;
  gap:32px;
}
.large-cover-card{
  position:relative;
  display:flex;
  align-items:flex-end;
  min-height:clamp(430px,68vh,620px);
  border-radius:24px;
  overflow:hidden;
  isolation:isolate;
  background:linear-gradient(140deg,#0B1626,#060E1B);
  border:1px solid rgba(160,200,255,.16);
  box-shadow:0 24px 60px rgba(0,0,0,.3);
  transition:border-color .25s,box-shadow .25s;
}
.large-cover-card:hover{
  border-color:rgba(120,200,255,.35);
  box-shadow:0 30px 76px rgba(0,0,0,.35),0 0 0 1px rgba(52,224,192,.06);
}
.large-cover-card img.large-cover-img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:-2;
}
.large-cover-card .large-gradient{
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(0deg,rgba(5,10,20,.94) 12%,rgba(5,10,20,.44) 52%,rgba(5,10,20,.08) 100%);
}
.large-cover-card--center{
  align-items:center;
}
.large-cover-card--center .large-gradient{
  background:linear-gradient(90deg,rgba(5,10,20,.65),rgba(5,10,20,.18),rgba(5,10,20,.65)),linear-gradient(0deg,rgba(5,10,20,.86),transparent 70%);
}
.large-cover-card--center .card-body{
  justify-content:center;
  text-align:center;
  width:100%;
}
.large-cover-card--center .card-inner{
  max-width:720px;
  margin-inline:auto;
}
.large-cover-card--right .card-body{
  justify-content:flex-end;
}
.large-cover-card--right .card-inner{
  max-width:680px;
}
.card-body{
  width:100%;
  display:flex;
  padding:28px clamp(16px,4vw,42px);
}
.card-inner{
  max-width:720px;
}
.card-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gold);
  border:1px solid rgba(227,195,107,.35);
  background:rgba(7,14,25,.42);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:16px;
  backdrop-filter:blur(8px);
}
.card-tag i{
  font-size:10px;
  color:var(--teal);
}
.card-inner h3{
  font-size:clamp(24px,3.2vw,32px);
  font-weight:700;
  color:var(--text);
  margin-bottom:14px;
  line-height:1.3;
}
.card-inner p{
  color:#C6D5E8;
  font-size:16px;
  line-height:1.9;
  margin-bottom:16px;
}
.card-features{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:20px;
}
.card-features li{
  display:inline-block;
  font-size:12px;
  color:var(--text-soft);
  border:1px solid rgba(160,200,255,.2);
  border-radius:999px;
  padding:4px 10px;
  background:rgba(10,18,32,.5);
  backdrop-filter:blur(6px);
}
.card-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}
.note-line{
  font-size:13px;
  color:var(--text-soft);
  margin-top:18px;
}
.note-line a{
  color:var(--teal);
  text-decoration:underline;
  text-underline-offset:4px;
}
.quick-section{
  padding:0 0 var(--section-y);
}
.quick-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:26px;
}
.quick-card{
  border-radius:20px;
  background:var(--panel);
  border:1px solid var(--line);
  padding:30px;
  position:relative;
  overflow:hidden;
  transition:border-color .25s,transform .25s;
}
.quick-card:hover{
  border-color:rgba(52,224,192,.38);
  transform:translateY(-3px);
}
.quick-card::before{
  content:"";
  position:absolute;
  top:0;
  left:30px;
  width:90px;
  height:3px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--blue),var(--teal));
}
.quick-card .quick-icon{
  width:46px;
  height:46px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  background:rgba(52,224,192,.12);
  color:var(--teal);
  font-size:19px;
  margin-bottom:18px;
}
.quick-card--gold .quick-icon{
  background:rgba(227,195,107,.12);
  color:var(--gold);
}
.quick-card h3{
  font-size:20px;
  font-weight:600;
  color:var(--text);
  margin-bottom:10px;
}
.quick-card p{
  color:var(--text-soft);
  font-size:15px;
  margin-bottom:18px;
  line-height:1.85;
}
.quick-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:18px;
}
.pill{
  font-size:12px;
  color:var(--text-soft);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(160,200,255,.18);
  padding:4px 11px;
  border-radius:999px;
}
.pill--teal{color:var(--teal);border-color:rgba(52,224,192,.32);background:rgba(52,224,192,.06)}
.pill--gold{color:var(--gold);border-color:rgba(227,195,107,.32);background:rgba(227,195,107,.06)}
.glass-quote{
  background:rgba(17,28,45,.5);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;
  padding:20px 22px;
  display:flex;
  gap:14px;
  margin-bottom:18px;
}
.glass-quote i{color:var(--gold);font-size:18px;margin-top:3px}
.glass-quote p{font-size:14px;color:#C9D8EC;line-height:1.85;margin:0}
.faq-section{
  padding:0 0 var(--section-y);
}
.faq-container{
  max-width:860px;
  margin-inline:auto;
}
.faq-item{
  border:1px solid rgba(160,200,255,.15);
  background:rgba(255,255,255,.025);
  border-radius:18px;
  margin-bottom:14px;
  overflow:hidden;
  transition:background .25s,border-color .25s;
}
.faq-item[open]{
  background:rgba(17,28,45,.55);
  border-color:rgba(52,224,192,.35);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--teal)}
.faq-icon{
  min-width:30px;
  height:30px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:rgba(47,129,247,.12);
  color:var(--blue);
  font-size:15px;
  transition:transform .3s,background .3s,color .3s;
}
.faq-item[open] .faq-icon{
  transform:rotate(45deg);
  background:rgba(52,224,192,.14);
  color:var(--teal);
}
.faq-answer{
  padding:0 22px 20px;
  color:var(--text-soft);
  font-size:15px;
  line-height:1.9;
}
.faq-answer a{
  color:var(--teal);
  text-decoration:underline;
  text-underline-offset:4px;
}
.share-section{
  padding:0 0 var(--section-y);
}
.share-panel{
  position:relative;
  overflow:hidden;
  background:rgba(17,28,45,.55);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:24px;
  padding:clamp(32px,6vw,64px);
  display:grid;
  grid-template-columns:1fr auto;
  align-items:center;
  gap:36px;
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.share-panel::before{
  content:"";
  position:absolute;
  width:350px;
  height:350px;
  right:-80px;
  top:-140px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(52,224,192,.2),transparent 65%);
  pointer-events:none;
}
.share-panel h2{
  font-size:clamp(24px,3.3vw,34px);
  color:var(--text);
  line-height:1.3;
  margin-bottom:12px;
  position:relative;
}
.share-panel .share-copy{
  color:var(--text-soft);
  max-width:620px;
  font-size:15px;
  line-height:1.85;
  margin-bottom:24px;
  position:relative;
}
.share-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  position:relative;
}
.share-illustration{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:18px;
  position:relative;
  min-width:300px;
}
.share-icon-stack{
  width:64px;
  height:64px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:20px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(8,15,28,.6);
  color:var(--gold);
  font-size:25px;
  transform:rotate(-4deg);
  transition:transform .3s;
}
.share-icon-stack:last-child{color:var(--teal);transform:rotate(5deg) translateY(10px)}
.share-icon-stack:hover{transform:rotate(0) translateY(-4px)}
.site-footer{
  background:#04080F;
  border-top:1px solid rgba(160,200,255,.12);
  padding:54px 0 28px;
  color:var(--text-soft);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr .8fr .8fr 1fr;
  gap:34px;
  padding-bottom:30px;
  border-bottom:1px solid rgba(160,200,255,.1);
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{font-size:18px}
.footer-desc{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
  margin-top:12px;
  max-width:340px;
}
.footer-col h4{
  color:var(--text);
  font-size:15px;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:9px}
.footer-col li a,.footer-col a{
  color:var(--text-soft);
  font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-col li a:hover,.footer-col a:hover{
  color:var(--teal);
  padding-left:4px;
}
.footer-note{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  font-size:12px;
  color:var(--muted);
}
.footer-note a{
  color:var(--text-soft);
  transition:color .2s;
}
.footer-note a:hover{color:var(--teal)}
.footer-note .dot{opacity:.4;margin:0 6px}
@media(max-width:1080px){
  .main-nav{gap:2px}
  .nav-link{padding-inline:.56rem;font-size:14px}
  .search-command{width:160px}
  .header-cta span{display:none}
}
@media(max-width:992px){
  .main-nav{
    position:fixed;
    left:16px;
    right:16px;
    top:72px;
    z-index:99;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    background:rgba(6,13,25,.95);
    backdrop-filter:blur(20px);
    border:1px solid rgba(160,200,255,.2);
    border-radius:18px;
    padding:10px;
    box-shadow:0 22px 60px rgba(0,0,0,.45);
  }
  .main-nav.open{display:flex}
  .nav-link{
    padding:.82rem 1rem;
    justify-content:flex-start;
    border-radius:12px;
  }
  .nav-link.active::after{display:none}
  .nav-link.active{background:rgba(52,224,192,.1)}
  .nav-toggle{display:inline-flex}
  .search-command{width:150px}
  .hero-grid{
    grid-template-columns:1fr;
    gap:34px;
  }
  .hero-section{min-height:auto;padding-top:150px;padding-bottom:70px}
  .hero-floating-card{
    max-width:340px;
  }
  .floating-info strong{
    font-size:14px;
  }
  .hero-floating-card img{
    aspect-ratio:16/8;
  }
  .chapter-grid,.quick-grid,.share-panel{
    grid-template-columns:1fr;
  }
  .section-lead{max-width:none}
}
@media(max-width:767px){
  :root{--section-y:64px}
  .container{width:min(100% - 32px,1200px)}
  .header-inner{gap:8px}
  .brand-text{font-size:17px}
  .search-command{
    width:36px;
    height:36px;
    justify-content:center;
    padding:0;
    border-radius:11px;
  }
  .search-command input,.search-command kbd{display:none}
  .icon-btn{display:none}
  .header-cta{
    min-height:38px;
    font-size:13px;
    padding:.4rem .75rem;
  }
  .header-cta i{margin-right:0}
  .header-cta span{display:none}
  .btn{padding-inline:1rem}
  .hero-copy h1{
    font-size:clamp(28px,8vw,36px);
    line-height:1.25;
  }
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stats{width:100%}
  .hero-stats li{flex:1;min-width:92px;padding:10px 12px}
  .hero-stats strong{font-size:20px}
  .hero-stats span{font-size:11px}
  .chapter-grid{gap:24px}
  .section-title{font-size:26px}
  .section-head{gap:10px}
  .large-cover-card{min-height:auto;border-radius:18px}
  .large-cover-card img.large-cover-img{position:absolute;height:100%}
  .card-body{padding:24px 18px}
  .large-cover-card--center{min-height:500px}
  .card-inner h3{font-size:23px}
  .card-inner p{font-size:14px}
  .card-features li{font-size:11px}
  .card-actions .btn{width:100%}
  .quick-card{padding:22px}
  .quick-grid{gap:16px}
  .share-panel{padding:28px 20px}
  .share-actions{flex-direction:column}
  .share-illustration{
    min-width:0;
    justify-content:flex-start;
  }
  .share-icon-stack{
    width:52px;
    height:52px;
    font-size:20px;
  }
  .faq-item summary{font-size:15px;padding:17px 16px}
  .faq-item .faq-answer{padding:0 16px 18px;font-size:14px}
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:28px 20px;
  }
  .footer-brand{grid-column:1/-1}
  .footer-desc{max-width:none}
  .footer-col h4{margin-bottom:12px}
  .footer-note{align-items:flex-start;flex-direction:column}
  .share-panel h2{line-height:1.3}
}
@media(max-width:420px){
  .brand-text .full-text{display:none}
  .brand-text .short-text{display:inline}
  .brand-text{font-size:17px}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:8px}
  .hero-stats li{width:calc(50% - 4px)}
  .large-cover-card--center{min-height:520px}
}