/* roulang page: index */
:root{
  --bg:#f6f8fc;
  --surface:#ffffff;
  --navy:#0b1f3a;
  --navy-2:#132b4d;
  --navy-3:#1e3a5f;
  --gold:#d9a441;
  --gold-light:#f2c56b;
  --red:#e11d48;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e8edf4;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 10px 30px rgba(11,31,58,.08);
  --shadow-lg:0 24px 60px rgba(11,31,58,.14);
  --shadow-gold:0 10px 26px rgba(217,164,65,.35);
  --transition:.3s cubic-bezier(.4,0,.2,1);
  --sidebar-w:264px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button{font-family:inherit}
.container{max-width:1300px}
ul{list-style:none}
:focus-visible{outline:3px solid rgba(217,164,65,.55);outline-offset:2px;border-radius:6px}

/* ===== App Shell ===== */
.app-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  z-index:1040;
  background:linear-gradient(180deg,#081a2e 0%,#0f2544 55%,#142d4f 100%);
  display:flex;
  flex-direction:column;
  padding:30px 22px 26px;
  border-right:1px solid rgba(255,255,255,.06);
}
.sidebar-brand{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
  font-weight:800;
  font-size:21px;
  letter-spacing:.5px;
  margin-bottom:42px;
  padding:0 6px;
}
.brand-mark{
  width:44px;height:44px;
  flex:0 0 44px;
  background:linear-gradient(135deg,var(--gold) 0%,#b97f24 100%);
  border-radius:13px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--navy);
  font-size:21px;
  font-weight:900;
  box-shadow:var(--shadow-gold);
}
.brand-text{white-space:nowrap}
.sidebar-nav{display:flex;flex-direction:column;gap:6px}
.sidebar-nav .nav-link{
  display:flex;
  align-items:center;
  gap:13px;
  color:rgba(255,255,255,.72);
  font-weight:600;
  font-size:15px;
  padding:13px 16px;
  border-radius:12px;
  transition:var(--transition);
  position:relative;
}
.sidebar-nav .nav-link i{width:20px;text-align:center;font-size:16px}
.sidebar-nav .nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,.09);
  transform:translateX(3px);
}
.sidebar-nav .nav-link.active{
  color:var(--navy);
  background:linear-gradient(135deg,var(--gold) 0%,var(--gold-light) 100%);
  box-shadow:var(--shadow-gold);
}
.sidebar-foot{
  margin-top:auto;
  padding:16px 14px;
  border:1px solid rgba(255,255,255,.1);
  border-radius:14px;
  background:rgba(255,255,255,.04);
  color:rgba(255,255,255,.6);
  font-size:13px;
  line-height:1.7;
  text-align:center;
}
.sidebar-foot i{color:var(--gold-light);margin-right:4px}

.app-topbar{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(9,24,42,.97);
  backdrop-filter:blur(12px);
  padding:12px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.app-topbar .brand{
  color:#fff;
  font-weight:800;
  font-size:19px;
  display:flex;
  align-items:center;
  gap:10px;
}
.app-topbar .brand .brand-mark{width:36px;height:36px;flex-basis:36px;font-size:17px}
.btn-menu{
  background:linear-gradient(135deg,var(--gold),var(--gold-light));
  border:none;
  color:var(--navy);
  width:42px;height:42px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  box-shadow:var(--shadow-gold);
  transition:var(--transition);
}
.btn-menu:hover{transform:translateY(-2px);filter:brightness(1.06)}

.offcanvas-nav{
  background:linear-gradient(180deg,#081a2e 0%,#0f2544 100%);
  color:#fff;
  width:290px !important;
}
.offcanvas-nav .offcanvas-header{padding:22px 22px 8px;border-bottom:1px solid rgba(255,255,255,.08)}
.offcanvas-nav .offcanvas-body{padding:22px}
.offcanvas-nav .sidebar-nav .nav-link{color:rgba(255,255,255,.78)}
.offcanvas-nav .sidebar-nav .nav-link.active{color:var(--navy)}
.offcanvas-nav .sidebar-foot{margin-top:28px}
.btn-close-white{filter:invert(1) grayscale(100%) brightness(200%)}

.app-main{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:110px 0 130px;
  background:linear-gradient(135deg,rgba(7,20,36,.97) 0%,rgba(13,33,61,.9) 55%,rgba(23,45,78,.88) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;
  top:-120px;right:-80px;
  width:480px;height:480px;
  background:radial-gradient(circle,rgba(217,164,65,.22) 0%,transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:'';
  position:absolute;
  bottom:-160px;left:-100px;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(225,29,72,.16) 0%,transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:9px;
  background:rgba(217,164,65,.14);
  border:1px solid rgba(217,164,65,.45);
  color:var(--gold-light);
  padding:8px 20px;
  border-radius:100px;
  font-weight:600;
  font-size:13px;
  letter-spacing:1.5px;
  margin-bottom:26px;
  animation:fadeUp .7s ease both;
}
.hero h1{
  font-size:clamp(2.35rem,5vw,3.9rem);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-1px;
  margin-bottom:20px;
  animation:fadeUp .7s .1s ease both;
}
.hero-highlight{
  background:linear-gradient(120deg,var(--gold-light) 10%,var(--gold) 60%,#ffd98a 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  color:rgba(255,255,255,.82);
  font-size:clamp(1rem,1.6vw,1.2rem);
  max-width:680px;
  line-height:1.9;
  margin-bottom:34px;
  animation:fadeUp .7s .2s ease both;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:30px;
  animation:fadeUp .7s .3s ease both;
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:44px;
  animation:fadeUp .7s .4s ease both;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:rgba(255,255,255,.85);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  padding:8px 16px;
  border-radius:100px;
  font-size:13px;
  font-weight:600;
  transition:var(--transition);
}
.chip:hover{
  color:#fff;
  background:rgba(217,164,65,.18);
  border-color:rgba(217,164,65,.45);
  transform:translateY(-2px);
}
.countdown-label{
  display:block;
  font-size:13px;
  letter-spacing:3px;
  color:rgba(255,255,255,.6);
  font-weight:600;
  margin-bottom:14px;
}
.countdown-wrap{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  animation:fadeUp .7s .5s ease both;
}
.countdown-item{
  width:92px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:16px;
  padding:14px 8px 12px;
  text-align:center;
  backdrop-filter:blur(10px);
  transition:var(--transition);
}
.countdown-item:hover{border-color:rgba(217,164,65,.5);background:rgba(217,164,65,.12)}
.countdown-item .num{
  font-size:2.2rem;
  font-weight:800;
  color:var(--gold-light);
  line-height:1;
  font-variant-numeric:tabular-nums;
  display:block;
  margin-bottom:6px;
}
.countdown-item .label{
  font-size:.75rem;
  color:rgba(255,255,255,.68);
  letter-spacing:2px;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  margin-top:52px;
  padding-top:38px;
  border-top:1px solid rgba(255,255,255,.14);
  animation:fadeUp .7s .6s ease both;
}
.hero-stat-value{
  font-size:clamp(1.4rem,2.4vw,2rem);
  font-weight:800;
  color:var(--gold-light);
  line-height:1.2;
  display:block;
}
.hero-stat-label{
  font-size:13px;
  color:rgba(255,255,255,.62);
  letter-spacing:.5px;
}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(24px)}
  to{opacity:1;transform:translateY(0)}
}

/* ===== Buttons ===== */
.btn{
  border-radius:11px;
  padding:13px 28px;
  font-weight:700;
  font-size:15px;
  transition:var(--transition);
  display:inline-flex;
  align-items:center;
  gap:9px;
  border:1.5px solid transparent;
}
.btn-gold{
  background:linear-gradient(135deg,var(--gold) 0%,var(--gold-light) 100%);
  color:var(--navy);
  box-shadow:var(--shadow-gold);
}
.btn-gold:hover,.btn-gold:focus{
  color:var(--navy);
  transform:translateY(-3px);
  box-shadow:0 16px 36px rgba(217,164,65,.48);
  filter:brightness(1.05);
}
.btn-ghost-light{
  border:1.5px solid rgba(255,255,255,.4);
  color:#fff;
  background:rgba(255,255,255,.06);
}
.btn-ghost-light:hover{
  color:#fff;
  background:rgba(255,255,255,.14);
  border-color:rgba(255,255,255,.65);
  transform:translateY(-3px);
}
.btn-navy{
  background:var(--navy);
  color:#fff;
  box-shadow:0 10px 24px rgba(11,31,58,.25);
}
.btn-navy:hover{background:var(--navy-3);color:#fff;transform:translateY(-3px)}

/* ===== Sections ===== */
.section{padding:96px 0;position:relative}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}
.section-eyebrow{
  display:inline-block;
  color:#a3701a;
  font-weight:800;
  font-size:13px;
  letter-spacing:3px;
  text-transform:uppercase;
  margin-bottom:12px;
  padding:6px 18px;
  border-radius:100px;
  background:rgba(217,164,65,.13);
  border:1px solid rgba(217,164,65,.3);
}
.section-title{
  font-size:clamp(1.85rem,3.4vw,2.7rem);
  font-weight:800;
  letter-spacing:-1px;
  line-height:1.25;
  margin-bottom:14px;
  color:var(--navy);
}
.section-sub{
  color:var(--muted);
  font-size:1.05rem;
  line-height:1.85;
}

/* ===== Feature Cards ===== */
.feature-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:34px 28px;
  height:100%;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.feature-card::after{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--gold),var(--red));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .45s ease;
}
.feature-card:hover::after{transform:scaleX(1)}
.feature-card:hover{
  transform:translateY(-7px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.feature-icon{
  width:58px;height:58px;
  border-radius:15px;
  background:linear-gradient(135deg,rgba(217,164,65,.18),rgba(225,29,72,.1));
  color:#b97919;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
  margin-bottom:22px;
  transition:var(--transition);
}
.feature-card:hover .feature-icon{
  background:linear-gradient(135deg,var(--gold),#e5b456);
  color:var(--navy);
  transform:rotate(-6deg) scale(1.06);
  box-shadow:var(--shadow-gold);
}
.feature-card h3{font-size:1.18rem;font-weight:700;margin-bottom:10px;color:var(--navy)}
.feature-card p{color:var(--muted);font-size:.94rem;line-height:1.75;margin:0}

/* ===== Topics Scroll ===== */
.topics-band{
  background:linear-gradient(180deg,#fff 0%,#f6f8fc 100%);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.scroll-row{
  display:flex;
  gap:24px;
  overflow-x:auto;
  padding:8px 4px 24px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
  scrollbar-color:var(--gold) #e4e8f0;
}
.scroll-row::-webkit-scrollbar{height:8px}
.scroll-row::-webkit-scrollbar-track{background:#e4e8f0;border-radius:100px}
.scroll-row::-webkit-scrollbar-thumb{background:linear-gradient(90deg,var(--gold),#b97919);border-radius:100px}
.scroll-card{
  flex:0 0 310px;
  scroll-snap-align:start;
  border-radius:18px;
  overflow:hidden;
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:var(--transition);
}
.scroll-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
}
.scroll-card-img{
  position:relative;
  overflow:hidden;
  height:180px;
}
.scroll-card-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.scroll-card:hover .scroll-card-img img{transform:scale(1.07)}
.scroll-card-img::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(8,26,46,.55) 100%);
}
.scroll-card-tag{
  position:absolute;
  left:14px;bottom:12px;
  z-index:2;
  color:#fff;
  background:rgba(217,164,65,.9);
  font-size:12px;
  font-weight:700;
  padding:4px 12px;
  border-radius:100px;
}
.scroll-card-body{padding:20px 22px 24px}
.scroll-card-body h3{font-size:1.1rem;font-weight:700;color:var(--navy);margin-bottom:8px}
.scroll-card-body p{color:var(--muted);font-size:.88rem;line-height:1.7;margin:0}

/* ===== Category Feature ===== */
.cat-feature-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.cat-feature-img{position:relative;min-height:320px;height:100%}
.cat-feature-img img{
  width:100%;height:100%;
  object-fit:cover;
  position:absolute;
  inset:0;
}
.cat-feature-img::after{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,26,46,.55) 0%,rgba(8,26,46,.08) 70%,transparent 100%);
}
.cat-feature-body{padding:46px 40px}
.cat-feature-body .section-eyebrow{margin-bottom:14px}
.cat-feature-body h2{font-size:1.75rem;font-weight:800;color:var(--navy);margin-bottom:14px;letter-spacing:-.5px}
.cat-feature-body>p{color:var(--muted);line-height:1.85;margin-bottom:22px}
.cat-points{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;margin-bottom:28px}
.cat-points li{
  display:flex;
  align-items:center;
  gap:10px;
  color:#334155;
  font-size:14px;
  font-weight:600;
}
.cat-points li i{color:var(--gold);font-size:14px;width:18px;text-align:center}

/* ===== Rank ===== */
.rank-panel{
  position:relative;
  background:linear-gradient(135deg,#0a1d35 0%,#123052 100%);
  border-radius:var(--radius-lg);
  padding:48px 52px 36px;
  color:#fff;
  overflow:hidden;
  box-shadow:0 24px 60px rgba(8,26,46,.35);
}
.rank-panel::before{
  content:'';
  position:absolute;
  top:-80px;right:-60px;
  width:300px;height:300px;
  background:radial-gradient(circle,rgba(217,164,65,.18) 0%,transparent 70%);
}
.rank-title{
  font-size:1.4rem;
  font-weight:800;
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:10px;
}
.rank-title i{color:var(--gold-light)}
.rank-subtitle{color:rgba(255,255,255,.55);font-size:14px;margin-bottom:28px}
.rank-row{
  display:flex;
  align-items:center;
  gap:18px;
  padding:16px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:var(--transition);
}
.rank-row:last-child{border-bottom:none}
.rank-row:hover{background:rgba(255,255,255,.04);padding-left:14px;padding-right:14px;border-radius:12px}
.rank-no{
  width:42px;height:42px;
  flex:0 0 42px;
  border-radius:11px;
  background:rgba(255,255,255,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:15px;
  color:rgba(255,255,255,.8);
}
.rank-row:nth-child(2) .rank-no{background:rgba(230,232,238,.92);color:var(--navy-2)}
.rank-row:nth-child(3) .rank-no{background:rgba(230,232,238,.6);color:var(--navy-2)}
.rank-name{flex:1;font-weight:600;font-size:15px}
.rank-progress{
  flex:0 0 34%;
  height:8px;
  background:rgba(255,255,255,.12);
  border-radius:100px;
  overflow:hidden;
}
.rank-progress span{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--gold),var(--red));
  border-radius:100px;
  transition:width 1.2s ease;
}
.rank-percent{
  width:54px;
  text-align:right;
  color:var(--gold-light);
  font-weight:800;
  font-variant-numeric:tabular-nums;
}

/* ===== Process ===== */
.process-section{
  background:linear-gradient(rgba(246,248,252,.94),rgba(246,248,252,.96)),url('/assets/images/backpic/back-3.png') center/cover fixed no-repeat;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.step-cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
}
.step-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:34px 22px;
  text-align:center;
  transition:var(--transition);
}
.step-item:hover{
  transform:translateY(-7px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(217,164,65,.4);
}
.step-item:not(:last-child)::after{
  content:'→';
  position:absolute;
  right:-22px;top:50%;
  transform:translateY(-50%);
  font-size:24px;
  font-weight:700;
  color:var(--gold);
  z-index:3;
  background:var(--bg);
  width:28px;height:28px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 0 0 4px var(--bg);
}
.step-num{
  width:66px;height:66px;
  margin:0 auto 20px;
  background:linear-gradient(135deg,var(--navy),var(--navy-3));
  color:var(--gold-light);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:26px;
  font-weight:800;
  border:3px solid rgba(217,164,65,.45);
  box-shadow:0 0 0 7px rgba(217,164,65,.09);
}
.step-item h3{font-size:1.05rem;font-weight:700;color:var(--navy);margin-bottom:8px}
.step-item p{color:var(--muted);font-size:.87rem;line-height:1.7;margin:0}

/* ===== News ===== */
.news-card{
  display:block;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px 26px 24px;
  height:100%;
  text-decoration:none;
  color:var(--text);
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.news-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--gold),var(--gold-light));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .4s ease;
}
.news-card:hover::before{transform:scaleX(1)}
.news-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
  color:var(--text);
}
.news-card-top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:12px;
}
.news-badge{
  display:inline-flex;
  align-items:center;
  background:rgba(217,164,65,.14);
  color:#95630f;
  font-size:12px;
  font-weight:700;
  padding:5px 12px;
  border-radius:100px;
}
.news-date{color:var(--muted);font-size:13px;display:flex;align-items:center;gap:6px}
.news-card h3{
  font-size:1.08rem;
  font-weight:700;
  color:var(--navy);
  line-height:1.55;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card p{
  color:var(--muted);
  font-size:.9rem;
  line-height:1.75;
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.empty-state{
  background:var(--surface);
  border:1px dashed #cbd5e1;
  border-radius:var(--radius);
  padding:52px 24px;
  text-align:center;
  color:var(--muted);
  font-size:15px;
}
.more-wrap{text-align:center;margin-top:44px}

/* ===== FAQ ===== */
.faq-accordion .accordion-item{
  border:1px solid var(--border) !important;
  border-radius:14px !important;
  overflow:hidden;
  margin-bottom:16px;
  box-shadow:0 4px 16px rgba(11,31,58,.05) !important;
  background:var(--surface) !important;
}
.faq-accordion .accordion-button{
  font-weight:700;
  font-size:1.03rem;
  color:var(--navy);
  background:#fff;
  padding:22px 26px;
  box-shadow:none;
  transition:var(--transition);
}
.faq-accordion .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23d9a441'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
  background-size:1rem;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:linear-gradient(135deg,rgba(217,164,65,.1),rgba(225,29,72,.04));
  color:var(--navy);
  box-shadow:none;
}
.faq-accordion .accordion-button:focus{box-shadow:none}
.faq-accordion .accordion-body{
  color:var(--muted);
  line-height:1.85;
  padding:4px 26px 24px;
  font-size:.95rem;
}

/* ===== CTA ===== */
.cta-box{
  position:relative;
  background:linear-gradient(120deg,rgba(7,20,36,.95),rgba(16,38,68,.9)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-radius:var(--radius-lg);
  padding:76px 56px;
  color:#fff;
  text-align:center;
  overflow:hidden;
  box-shadow:0 24px 60px rgba(8,26,46,.35);
}
.cta-box::before{
  content:'';
  position:absolute;
  top:-100px;left:50%;
  transform:translateX(-50%);
  width:600px;height:300px;
  background:radial-gradient(ellipse,rgba(217,164,65,.25) 0%,transparent 70%);
  pointer-events:none;
}
.cta-box h2{
  font-size:clamp(1.7rem,3vw,2.6rem);
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:14px;
}
.cta-box p{
  color:rgba(255,255,255,.75);
  max-width:640px;
  margin:0 auto 34px;
  font-size:1.05rem;
  line-height:1.85;
}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-note{
  margin-top:22px;
  color:rgba(255,255,255,.5);
  font-size:13px;
}

/* ===== Footer ===== */
.site-footer{
  background:linear-gradient(180deg,#081a2e,#060f1e);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  margin-top:auto;
}
.footer-about .sidebar-brand{margin-bottom:18px}
.footer-about p{color:rgba(255,255,255,.58);font-size:14px;line-height:1.85;max-width:340px}
.footer-title{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:20px;
  position:relative;
  padding-bottom:10px;
}
.footer-title::after{
  content:'';
  position:absolute;
  left:0;bottom:0;
  width:30px;height:3px;
  background:linear-gradient(90deg,var(--gold),var(--gold-light));
  border-radius:100px;
}
.footer-links li{margin-bottom:12px}
.footer-links a{
  color:rgba(255,255,255,.65);
  font-size:14px;
  transition:var(--transition);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.footer-links a i{font-size:11px;color:var(--gold);opacity:.7}
.footer-links a:hover{color:var(--gold-light);transform:translateX(4px)}
.footer-security li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:rgba(255,255,255,.65);
  font-size:14px;
  margin-bottom:12px;
  line-height:1.6;
}
.footer-security li i{color:var(--gold);margin-top:4px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:24px 0;
  margin-top:56px;
  font-size:13px;
  color:rgba(255,255,255,.45);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}

/* ===== Responsive ===== */
@media (max-width:1199.98px){
  .cat-points{grid-template-columns:1fr}
}
@media (max-width:991.98px){
  .app-sidebar{display:none}
  .app-main{margin-left:0}
  .section{padding:78px 0}
  .hero{padding:84px 0 100px}
  .step-cards{grid-template-columns:repeat(2,1fr);gap:30px 22px}
  .step-item:nth-child(2)::after{content:'↓';right:50%;top:auto;bottom:-34px;transform:translateX(50%);width:30px;height:30px}
  .step-item:nth-child(2)::after{content:'→';right:-20px;top:50%;transform:translateY(-50%)}
  .rank-panel{padding:36px 30px 26px}
}
@media (max-width:767.98px){
  .section{padding:60px 0}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero{text-align:center}
  .hero-actions,.hero-chips{justify-content:center}
  .countdown-wrap{justify-content:center}
  .cat-feature-body{padding:32px 24px}
  .cat-feature-img{min-height:220px}
  .cat-feature-img::after{background:linear-gradient(180deg,rgba(8,26,46,.1),rgba(8,26,46,.4))}
  .cta-box{padding:52px 24px}
  .rank-progress{flex-basis:45%}
  .step-cards{grid-template-columns:1fr}
  .step-item::after{display:none !important}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (max-width:575.98px){
  .scroll-card{flex-basis:268px}
  .countdown-item{width:76px;padding:12px 6px 10px}
  .countdown-item .num{font-size:1.8rem}
  .hero-stats{gap:14px;margin-top:38px;padding-top:28px}
  .hero-stat-value{font-size:1.3rem}
  .btn{padding:12px 22px;font-size:14px}
  .rank-row{flex-wrap:wrap;gap:10px}
  .rank-progress{flex-basis:100%;order:4}
  .rank-percent{width:auto}
  .hero-chips .chip{font-size:12px;padding:6px 12px}
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --nk-primary: #0e1a42;
            --nk-primary-light: #1b2f6e;
            --nk-gold: #e0ae4c;
            --nk-gold-light: #f2d48e;
            --nk-gold-dark: #c18f35;
            --nk-body-bg: #f4f6fb;
            --nk-surface: #ffffff;
            --nk-text: #1e293b;
            --nk-muted: #64748b;
            --nk-border: #e6eaf2;
            --nk-radius-sm: 10px;
            --nk-radius: 16px;
            --nk-radius-lg: 24px;
            --nk-shadow-sm: 0 2px 10px rgba(14, 26, 66, .05);
            --nk-shadow: 0 12px 30px rgba(14, 26, 66, .08);
            --nk-shadow-lg: 0 22px 50px rgba(14, 26, 66, .13);
            --nk-transition: all .3s cubic-bezier(.4, 0, .2, 1);
            --sidebar-w: 268px;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 15px;
            line-height: 1.75;
            background: var(--nk-body-bg);
            color: var(--nk-text);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--nk-transition);
        }

        a:hover {
            color: var(--nk-gold-dark);
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        /* ========== 移动端顶部栏 ========== */
        .mobile-topbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            background: rgba(14, 26, 66, .96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            box-shadow: 0 4px 20px rgba(14, 26, 66, .15);
        }

        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--nk-gold-light), var(--nk-gold));
            color: var(--nk-primary);
            font-size: 15px;
            font-weight: 800;
            letter-spacing: 0;
            box-shadow: 0 4px 14px rgba(224, 174, 76, .4);
        }

        .brand-text {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            letter-spacing: .5px;
        }

        .mobile-toggler {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 10px;
            color: #fff;
            font-size: 17px;
            transition: var(--nk-transition);
        }

        .mobile-toggler:hover {
            background: rgba(255, 255, 255, .2);
        }

        .mobile-toggler:focus-visible {
            outline: 2px solid var(--nk-gold);
            outline-offset: 2px;
        }

        /* ========== 移动端抽屉 ========== */
        .mobile-offcanvas {
            background: var(--nk-primary) !important;
            color: #fff !important;
            width: 300px !important;
        }

        .mobile-offcanvas .offcanvas-header {
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            padding: 18px 20px;
        }

        .mobile-offcanvas .btn-close {
            filter: invert(1) grayscale(100%) brightness(200%);
        }

        .mobile-offcanvas .offcanvas-body {
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .mobile-menu-footer {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 18px;
            margin-top: 24px;
        }

        /* ========== 桌面侧边栏 ========== */
        .sidebar {
            position: fixed;
            inset: 0 auto 0 0;
            width: var(--sidebar-w);
            z-index: 1030;
            background: linear-gradient(180deg, #0a1330 0%, var(--nk-primary) 100%);
            border-right: 1px solid rgba(255, 255, 255, .06);
            display: flex;
            flex-direction: column;
            padding: 28px 20px;
            overflow-y: auto;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 8px;
            margin-bottom: 36px;
        }

        .sidebar-brand .brand-mark {
            width: 44px;
            height: 44px;
            font-size: 16px;
            border-radius: 12px;
        }

        .sidebar-brand .brand-text {
            font-size: 20px;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }

        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            border-radius: 14px;
            color: rgba(255, 255, 255, .62);
            font-size: 15px;
            font-weight: 500;
            transition: var(--nk-transition);
            border: 1px solid transparent;
        }

        .sidebar-nav .nav-link i {
            width: 22px;
            text-align: center;
            font-size: 16px;
            transition: var(--nk-transition);
        }

        .sidebar-nav .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .06);
            border-color: rgba(255, 255, 255, .06);
            transform: translateX(4px);
        }

        .sidebar-nav .nav-link.active {
            color: var(--nk-primary);
            background: linear-gradient(135deg, var(--nk-gold-light), var(--nk-gold));
            box-shadow: 0 8px 22px rgba(224, 174, 76, .35);
            border-color: transparent;
            transform: none;
        }

        .sidebar-nav .nav-link.active i {
            color: var(--nk-primary);
        }

        .sidebar-tip {
            margin-top: 28px;
            padding: 18px 16px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 16px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: rgba(255, 255, 255, .5);
            font-size: 13px;
            line-height: 1.6;
        }

        .sidebar-tip i {
            color: var(--nk-gold);
            font-size: 16px;
            margin-top: 2px;
        }

        .sidebar-tip p {
            margin: 0;
        }

        /* ========== 主内容区 ========== */
        .main-wrapper {
            margin-left: var(--sidebar-w);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        main {
            flex: 1;
        }

        /* ========== 页面 Banner ========== */
        .page-hero {
            position: relative;
            padding: 110px 0 150px;
            background: var(--nk-primary) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(9, 17, 46, .94) 0%, rgba(14, 26, 66, .78) 50%, rgba(14, 26, 66, .35) 100%);
        }

        .page-hero::after {
            content: '';
            position: absolute;
            right: -120px;
            bottom: -160px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(224, 174, 76, .18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            background: rgba(224, 174, 76, .12);
            border: 1px solid rgba(224, 174, 76, .3);
            border-radius: 50px;
            color: var(--nk-gold-light);
            font-size: 13px;
            letter-spacing: 1px;
            font-weight: 600;
            margin-bottom: 22px;
        }

        .hero-badge i {
            font-size: 12px;
        }

        .hero-title {
            color: #fff;
            font-size: clamp(30px, 4.2vw, 44px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

        .hero-title span {
            color: var(--nk-gold-light);
        }

        .hero-lead {
            color: rgba(255, 255, 255, .72);
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 32px;
            max-width: 600px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--nk-gold-light), var(--nk-gold));
            color: var(--nk-primary) !important;
            border: none;
            border-radius: 50px;
            padding: 13px 30px;
            font-weight: 700;
            font-size: 14px;
            box-shadow: 0 8px 24px rgba(224, 174, 76, .35);
            transition: var(--nk-transition);
        }

        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(224, 174, 76, .45);
            color: var(--nk-primary) !important;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
            border-radius: 50px;
            padding: 13px 28px;
            font-weight: 600;
            font-size: 14px;
            backdrop-filter: blur(6px);
            transition: var(--nk-transition);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .2);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-gold:focus-visible,
        .btn-ghost:focus-visible {
            outline: 3px solid rgba(224, 174, 76, .5);
            outline-offset: 2px;
        }

        /* ========== 数据条 ========== */
        .stats-bar {
            position: relative;
            z-index: 3;
            margin-top: -62px;
            padding-bottom: 70px;
        }

        .stat-card {
            background: var(--nk-surface);
            border-radius: var(--nk-radius-lg);
            padding: 28px 18px 24px;
            text-align: center;
            box-shadow: var(--nk-shadow-lg);
            border: 1px solid rgba(230, 234, 242, .8);
            height: 100%;
            position: relative;
            overflow: hidden;
            transition: var(--nk-transition);
        }

        .stat-card::after {
            content: '';
            position: absolute;
            left: 28px;
            right: 28px;
            bottom: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--nk-gold), transparent);
            opacity: 0;
            transition: var(--nk-transition);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--nk-shadow);
        }

        .stat-card:hover::after {
            opacity: 1;
        }

        .stat-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 14px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(224, 174, 76, .15), rgba(224, 174, 76, .25));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--nk-gold-dark);
            font-size: 20px;
        }

        .stat-num {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--nk-primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--nk-muted);
            font-weight: 500;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: 80px 0;
        }

        .section-head {
            max-width: 640px;
            margin-bottom: 48px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(224, 174, 76, .12);
            border: 1px solid rgba(224, 174, 76, .25);
            border-radius: 50px;
            color: var(--nk-gold-dark);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .section-title {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            color: var(--nk-primary);
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .section-text {
            color: var(--nk-muted);
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* ========== 图文概览 ========== */
        .overview-section {
            background: var(--nk-surface);
            border-top: 1px solid var(--nk-border);
            border-bottom: 1px solid var(--nk-border);
        }

        .overview-media {
            position: relative;
            border-radius: var(--nk-radius-lg);
            overflow: hidden;
            box-shadow: var(--nk-shadow-lg);
        }

        .overview-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 340px;
        }

        .overview-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(14, 26, 66, .3));
            pointer-events: none;
        }

        .overview-media .media-badge {
            position: absolute;
            left: 18px;
            bottom: 18px;
            z-index: 2;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(8px);
            border-radius: 12px;
            padding: 10px 18px;
            font-size: 13px;
            font-weight: 600;
            color: var(--nk-primary);
            box-shadow: 0 6px 18px rgba(14, 26, 66, .18);
        }

        .overview-content {
            padding-left: 10px;
        }

        .feature-list {
            margin-top: 28px;
            display: grid;
            gap: 18px;
        }

        .feature-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 20px;
            background: var(--nk-body-bg);
            border-radius: var(--nk-radius);
            border: 1px solid var(--nk-border);
            transition: var(--nk-transition);
        }

        .feature-item:hover {
            border-color: rgba(224, 174, 76, .4);
            box-shadow: var(--nk-shadow-sm);
            background: #fff;
        }

        .feature-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--nk-gold-light), var(--nk-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--nk-primary);
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(224, 174, 76, .3);
        }

        .feature-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--nk-primary);
            margin-bottom: 4px;
        }

        .feature-item p {
            font-size: 14px;
            color: var(--nk-muted);
            margin: 0;
            line-height: 1.65;
        }

        /* ========== 核心模块卡片 ========== */
        .modules-section {
            background: var(--nk-body-bg);
        }

        .module-card {
            background: var(--nk-surface);
            border-radius: var(--nk-radius-lg);
            overflow: hidden;
            border: 1px solid var(--nk-border);
            box-shadow: var(--nk-shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--nk-transition);
        }

        .module-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--nk-shadow-lg);
            border-color: rgba(224, 174, 76, .3);
        }

        .module-media {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .module-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .module-card:hover .module-media img {
            transform: scale(1.06);
        }

        .module-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(14, 26, 66, .35));
            pointer-events: none;
        }

        .module-body {
            padding: 24px 24px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .module-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--nk-primary);
            margin-bottom: 8px;
        }

        .module-body p {
            font-size: 14px;
            color: var(--nk-muted);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }

        .module-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-soft {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(224, 174, 76, .1);
            border-radius: 50px;
            color: var(--nk-gold-dark);
            font-size: 12px;
            font-weight: 600;
            border: 1px solid rgba(224, 174, 76, .2);
        }

        /* ========== 操作步骤时间线 ========== */
        .steps-section {
            background: var(--nk-surface);
            border-top: 1px solid var(--nk-border);
            border-bottom: 1px solid var(--nk-border);
        }

        .steps-list {
            position: relative;
            max-width: 880px;
            margin: 0 auto;
            padding-left: 0;
        }

        .steps-list::before {
            content: '';
            position: absolute;
            left: 34px;
            top: 30px;
            bottom: 30px;
            width: 2px;
            background: linear-gradient(180deg, var(--nk-gold), rgba(224, 174, 76, .15));
            border-radius: 2px;
        }

        .step-item {
            position: relative;
            display: flex;
            gap: 28px;
            padding: 26px 0;
        }

        .step-num {
            flex-shrink: 0;
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--nk-gold-light), var(--nk-gold));
            color: var(--nk-primary);
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(224, 174, 76, .35);
            position: relative;
            z-index: 2;
            border: 4px solid var(--nk-surface);
        }

        .step-content {
            padding-top: 8px;
            padding-bottom: 8px;
        }

        .step-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--nk-primary);
            margin-bottom: 8px;
        }

        .step-content p {
            font-size: 15px;
            color: var(--nk-muted);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 640px;
        }

        .step-content .step-meta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--nk-gold-dark);
            background: rgba(224, 174, 76, .1);
            padding: 4px 12px;
            border-radius: 50px;
            margin-top: 10px;
            font-weight: 600;
        }

        /* ========== 安全提示深色区 ========== */
        .safe-section {
            position: relative;
            padding: 90px 0;
            background: var(--nk-primary) url('/assets/images/backpic/back-3.png') center/cover fixed no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .safe-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(9, 17, 46, .94) 30%, rgba(14, 26, 66, .7) 100%);
        }

        .safe-section .container {
            position: relative;
            z-index: 2;
        }

        .safe-section .section-title {
            color: #fff;
        }

        .safe-section .section-text {
            color: rgba(255, 255, 255, .65);
        }

        .safe-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .safe-item {
            display: flex;
            gap: 16px;
            padding: 22px 22px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--nk-radius-lg);
            backdrop-filter: blur(6px);
            transition: var(--nk-transition);
        }

        .safe-item:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-3px);
            border-color: rgba(224, 174, 76, .3);
        }

        .safe-icon {
            flex-shrink: 0;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(224, 174, 76, .15);
            border: 1px solid rgba(224, 174, 76, .25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--nk-gold-light);
            font-size: 18px;
        }

        .safe-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            color: #fff;
        }

        .safe-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--nk-body-bg);
        }

        .faq-wrapper {
            max-width: 880px;
            margin: 0 auto;
        }

        .accordion {
            --bs-accordion-border-radius: var(--nk-radius);
            --bs-accordion-inner-border-radius: var(--nk-radius);
            --bs-accordion-bg: var(--nk-surface);
            --bs-accordion-border-color: var(--nk-border);
            --bs-accordion-color: var(--nk-text);
            --bs-accordion-btn-color: var(--nk-primary);
            --bs-accordion-btn-bg: var(--nk-surface);
            --bs-accordion-active-color: #fff;
            --bs-accordion-active-bg: var(--nk-primary);
        }

        .accordion-item {
            margin-bottom: 16px !important;
            border: 1px solid var(--nk-border) !important;
            border-radius: var(--nk-radius) !important;
            overflow: hidden;
            box-shadow: var(--nk-shadow-sm);
        }

        .accordion-button {
            font-size: 15px;
            font-weight: 600;
            padding: 20px 24px;
        }

        .accordion-button:not(.collapsed) {
            background: var(--nk-primary);
            color: #fff;
            box-shadow: none;
        }

        .accordion-button::after {
            background-size: 14px;
            transition: var(--nk-transition);
        }

        .accordion-button:not(.collapsed)::after {
            filter: brightness(0) invert(1);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(224, 174, 76, .25);
            border-radius: var(--nk-radius);
        }

        .accordion-body {
            padding: 22px 24px;
            color: var(--nk-muted);
            font-size: 14px;
            line-height: 1.85;
            background: #fff;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 0 0 80px;
            background: var(--nk-body-bg);
        }

        .cta-card {
            background: linear-gradient(135deg, var(--nk-primary) 0%, var(--nk-primary-light) 100%);
            border-radius: var(--nk-radius-lg);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--nk-shadow-lg);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(224, 174, 76, .2) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            left: -40px;
            bottom: -100px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(224, 174, 76, .12) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-card .cta-title {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .cta-card .cta-text {
            color: rgba(255, 255, 255, .7);
            font-size: 15px;
            max-width: 560px;
            margin-bottom: 28px;
            position: relative;
            z-index: 2;
        }

        .cta-actions {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0a1230;
            color: #aab4cc;
            padding: 60px 0 0;
            border-top: 3px solid var(--nk-gold);
        }

        .site-footer .row {
            margin-bottom: 40px;
        }

        .footer-about .sidebar-brand {
            margin-bottom: 16px;
            padding: 0;
        }

        .footer-about p {
            color: #8894ad;
            font-size: 14px;
            line-height: 1.85;
            max-width: 400px;
            margin: 0;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 3px;
            background: var(--nk-gold);
            border-radius: 3px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: #8894ad;
            font-size: 14px;
            transition: var(--nk-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a i {
            font-size: 10px;
            color: var(--nk-gold);
        }

        .footer-links a:hover {
            color: var(--nk-gold-light);
            transform: translateX(4px);
        }

        .footer-security {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-security li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: #8894ad;
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .footer-security li i {
            color: var(--nk-gold);
            font-size: 13px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            color: #5e6a85;
            font-size: 13px;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1199.98px) {
            .section {
                padding: 64px 0;
            }

            .page-hero {
                padding: 90px 0 130px;
            }
        }

        @media (max-width: 991.98px) {
            .sidebar {
                display: none !important;
            }

            .main-wrapper {
                margin-left: 0;
            }

            body {
                padding-top: 64px;
            }

            .page-hero {
                padding: 70px 0 120px;
                margin-top: 0;
            }

            .stats-bar {
                margin-top: -52px;
            }

            .section {
                padding: 56px 0;
            }

            .overview-content {
                padding-left: 0;
                margin-top: 32px;
            }

            .safe-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 767.98px) {
            .page-hero {
                padding: 56px 0 100px;
            }

            .hero-title {
                font-size: 28px;
            }

            .hero-lead {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-gold,
            .btn-ghost {
                justify-content: center;
                text-align: center;
            }

            .stats-bar {
                margin-top: -40px;
                padding-bottom: 48px;
            }

            .stat-card {
                padding: 20px 14px;
            }

            .stat-num {
                font-size: 22px;
            }

            .section {
                padding: 48px 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .steps-list::before {
                left: 24px;
            }

            .step-item {
                gap: 18px;
                padding: 18px 0;
            }

            .step-num {
                width: 50px;
                height: 50px;
                font-size: 17px;
            }

            .step-content h3 {
                font-size: 17px;
            }

            .step-content p {
                font-size: 14px;
            }

            .safe-section {
                padding: 56px 0;
                background-attachment: scroll;
            }

            .cta-card {
                padding: 40px 24px;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-actions .btn-gold,
            .cta-actions .btn-ghost {
                justify-content: center;
            }

            .site-footer {
                padding-top: 44px;
            }
        }

        @media (max-width: 520px) {
            .mobile-topbar {
                height: 58px;
                padding: 0 16px;
            }

            .brand-text {
                font-size: 16px;
            }

            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 13px;
            }

            .page-hero {
                padding: 44px 0 84px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 6px 14px;
            }

            .hero-title {
                font-size: 25px;
                line-height: 1.35;
            }

            .hero-lead {
                font-size: 14px;
                line-height: 1.75;
            }

            .stat-card {
                padding: 16px 10px;
            }

            .stat-icon {
                width: 42px;
                height: 42px;
                font-size: 16px;
                margin-bottom: 10px;
            }

            .stat-num {
                font-size: 20px;
            }

            .stat-label {
                font-size: 12px;
            }

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

            .section-text {
                font-size: 14px;
            }

            .module-media {
                height: 150px;
            }

            .module-body {
                padding: 18px 16px;
            }

            .module-body h3 {
                font-size: 16px;
            }

            .module-body p {
                font-size: 13px;
            }

            .safe-item {
                padding: 16px;
            }

            .safe-icon {
                width: 38px;
                height: 38px;
                font-size: 15px;
            }

            .safe-item h4 {
                font-size: 15px;
            }

            .safe-item p {
                font-size: 13px;
            }

            .accordion-button {
                font-size: 14px;
                padding: 16px 18px;
            }

            .accordion-body {
                padding: 16px 18px;
                font-size: 13px;
            }

            .cta-card {
                padding: 32px 18px;
                border-radius: var(--nk-radius);
            }

            .footer-about p {
                font-size: 13px;
            }

            .footer-links a,
            .footer-security li {
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0d1b2e;
            --primary-soft: #16293f;
            --primary-deep: #081422;
            --accent: #d4a655;
            --accent-strong: #b8873a;
            --accent-soft: #f4e8d0;
            --body-bg: #f5f6fa;
            --surface: #ffffff;
            --surface-soft: #f7f8fc;
            --text-main: #1d2333;
            --text-secondary: #5e6b82;
            --text-muted: #8a94a6;
            --border-color: #e5e8ef;
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-xs: 0 2px 6px rgba(13, 27, 46, .04);
            --shadow-sm: 0 4px 16px rgba(13, 27, 46, .06);
            --shadow-md: 0 8px 28px rgba(13, 27, 46, .08);
            --shadow-lg: 0 16px 44px rgba(13, 27, 46, .12);
            --sidebar-width: 252px;
            --header-h: 64px;
            --trans: .28s ease;
            --font-main: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-main);
            background: var(--body-bg);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; }
        a:hover { color: inherit; }
        img { max-width: 100%; display: block; }
        button { border: none; background: none; cursor: pointer; font-family: inherit; }
        ul, ol { list-style: none; }

        .app-shell { display: flex; min-height: 100vh; }

        /* ===== Sidebar ===== */
        .sidebar {
            width: var(--sidebar-width);
            position: fixed;
            top: 0;
            left: 0;
            height: 100vh;
            background: linear-gradient(180deg, var(--primary) 0%, var(--primary-deep) 100%);
            display: flex;
            flex-direction: column;
            z-index: 1050;
            padding: 28px 20px 24px;
            border-right: 1px solid rgba(255, 255, 255, .06);
            box-shadow: 4px 0 24px rgba(8, 20, 34, .2);
            overflow-y: auto;
        }
        .sidebar-brand-wrap { margin-bottom: 12px; }
        .sidebar-brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; }
        .brand-mark {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
            color: #fff;
            font-size: 16px;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 18px rgba(212, 166, 85, .35);
            flex-shrink: 0;
        }
        .brand-text { color: #fff; font-size: 18px; letter-spacing: .5px; }

        .sidebar-nav { display: flex; flex-direction: column; gap: 6px; margin-top: 40px; }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, .7);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--trans);
            position: relative;
        }
        .nav-link i { width: 20px; text-align: center; font-size: 16px; color: rgba(255, 255, 255, .5); transition: color var(--trans); }
        .nav-link:hover { background: rgba(255, 255, 255, .06); color: #fff; transform: translateX(3px); }
        .nav-link.active {
            background: rgba(212, 166, 85, .14);
            color: var(--accent);
            box-shadow: inset 0 0 0 1px rgba(212, 166, 85, .25);
        }
        .nav-link.active::before {
            content: '';
            position: absolute;
            left: -20px;
            width: 4px;
            height: 22px;
            border-radius: 0 4px 4px 0;
            background: var(--accent);
        }
        .nav-link.active i { color: var(--accent); }

        .sidebar-foot { margin-top: auto; padding-top: 24px; }
        .sidebar-badge {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-badge i { color: var(--accent); font-size: 16px; }
        .sidebar-badge span { color: rgba(255, 255, 255, .65); font-size: 12px; line-height: 1.4; }

        .sidebar-close {
            display: none;
            position: absolute;
            top: 18px;
            right: 14px;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            align-items: center;
            justify-content: center;
            z-index: 2;
            transition: background var(--trans);
        }
        .sidebar-close:hover { background: rgba(255, 255, 255, .16); }

        /* ===== Main ===== */
        .main-content { flex: 1; margin-left: var(--sidebar-width); min-width: 0; display: flex; flex-direction: column; }

        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            height: var(--header-h);
            background: rgba(13, 27, 46, .96);
            backdrop-filter: blur(12px);
            z-index: 1040;
            align-items: center;
            padding: 0 20px;
            gap: 14px;
        }
        .sidebar-toggle {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background var(--trans);
            font-size: 16px;
        }
        .sidebar-toggle:hover { background: rgba(255, 255, 255, .16); }
        .mobile-brand { color: #fff; font-weight: 700; font-size: 18px; flex: 1; }
        .mobile-tag {
            font-size: 12px;
            color: var(--accent);
            background: rgba(212, 166, 85, .12);
            padding: 5px 14px;
            border-radius: 99px;
            border: 1px solid rgba(212, 166, 85, .3);
            white-space: nowrap;
        }
        .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(8, 20, 34, .55); z-index: 1045; }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 88px 0 120px;
            color: #fff;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 20, 34, .93) 15%, rgba(13, 27, 46, .8) 55%, rgba(13, 27, 46, .45) 100%);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a { color: rgba(255, 255, 255, .82); transition: color var(--trans); }
        .breadcrumb-nav a:hover { color: var(--accent); }
        .breadcrumb-nav i.fa-angle-right { font-size: 12px; color: rgba(255, 255, 255, .4); }
        .breadcrumb-nav span { color: var(--accent); }
        .hero-cat {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 166, 85, .16);
            border: 1px solid rgba(212, 166, 85, .35);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 99px;
            margin-bottom: 16px;
        }
        .article-title {
            font-size: clamp(2rem, 4vw, 3.1rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -.02em;
            margin-bottom: 14px;
            max-width: 820px;
        }
        .article-desc {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, .78);
            max-width: 680px;
            line-height: 1.7;
        }

        /* ===== Section ===== */
        .section { padding: 80px 0; }
        .bg-soft { background: var(--surface-soft); }
        .section-head { margin-bottom: 44px; }
        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .08em;
            color: var(--accent-strong);
            text-transform: uppercase;
            margin-bottom: 8px;
            padding: 4px 14px;
            border-radius: 99px;
            background: var(--accent-soft);
        }
        .section-title { font-size: 2rem; font-weight: 800; margin: 10px 0 10px; color: var(--text-main); letter-spacing: -.01em; }
        .section-sub { color: var(--text-secondary); font-size: 1.04rem; max-width: 600px; margin: 0 auto; }

        /* ===== Article Card ===== */
        .article-card {
            background: var(--surface);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: 44px;
            border: 1px solid var(--border-color);
            margin-top: -72px;
            position: relative;
            z-index: 3;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            margin-bottom: 28px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 14px;
        }
        .article-meta span { display: inline-flex; align-items: center; gap: 8px; }
        .article-meta i { color: var(--accent-strong); font-size: 14px; }

        .article-cover { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 30px; box-shadow: var(--shadow-sm); }
        .article-cover img { width: 100%; height: auto; object-fit: cover; aspect-ratio: 16 / 7; transition: transform .5s ease; }
        .article-cover:hover img { transform: scale(1.02); }

        /* ===== Article Body ===== */
        .article-body { font-size: 1.03rem; color: #2b3345; }
        .article-body h2,
        .article-body h3,
        .article-body h4 { color: #141b2d; font-weight: 700; margin: 2rem 0 1rem; line-height: 1.4; }
        .article-body h2 {
            font-size: 1.55rem;
            margin-top: 2.4rem;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border-color);
        }
        .article-body h3 { font-size: 1.3rem; }
        .article-body p { line-height: 1.9; margin-bottom: 1.15rem; }
        .article-body ul,
        .article-body ol { margin: 0 0 1.25rem; padding-left: 1.5rem; }
        .article-body li { line-height: 1.85; margin-bottom: 6px; }
        .article-body ul li::marker { color: var(--accent-strong); }
        .article-body a { color: var(--accent-strong); border-bottom: 1px solid rgba(212, 166, 85, .4); }
        .article-body a:hover { border-color: var(--accent-strong); }
        .article-body blockquote {
            background: var(--surface-soft);
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 1.5rem 0;
            color: var(--text-secondary);
            font-size: .98rem;
        }
        .article-body img { border-radius: var(--radius-md); margin: 1.5rem 0; max-width: 100%; height: auto; }
        .article-body code {
            background: rgba(13, 27, 46, .06);
            padding: 3px 8px;
            border-radius: 6px;
            font-family: ui-monospace, Consolas, monospace;
            font-size: .9em;
            color: var(--accent-strong);
        }
        .article-body table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
        .article-body th,
        .article-body td { border: 1px solid var(--border-color); padding: 10px 14px; text-align: left; }
        .article-body th { background: var(--surface-soft); font-weight: 600; }

        /* ===== Tags ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 26px;
            margin-top: 30px;
            border-top: 1px solid var(--border-color);
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-soft);
            color: var(--accent-strong);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 99px;
            border: 1px solid rgba(212, 166, 85, .25);
        }
        .tag-item i { font-size: 11px; }

        /* ===== Pager ===== */
        .article-pager {
            display: flex;
            gap: 16px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .pager-link {
            flex: 1;
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--surface-soft);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            transition: all var(--trans);
            min-width: 0;
        }
        .pager-link:hover { border-color: rgba(212, 166, 85, .5); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
        .pager-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--accent-soft);
            color: var(--accent-strong);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .pager-label { color: var(--text-muted); font-size: 12px; display: block; margin-bottom: 3px; }
        .pager-title { color: var(--text-main); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
        .pager-next { justify-content: flex-end; text-align: right; }
        .pager-next .pager-icon { order: 2; }

        /* ===== Not Found ===== */
        .not-found-card {
            background: var(--surface);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: 64px 40px;
            border: 1px dashed var(--border-color);
            margin-top: -72px;
            position: relative;
            z-index: 3;
        }
        .not-found-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: var(--accent-soft);
            color: var(--accent-strong);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
        }
        .not-found-card h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
        .not-found-card p { color: var(--text-secondary); margin-bottom: 24px; }

        /* ===== Related Card ===== */
        .related-card {
            display: block;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: all var(--trans);
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 166, 85, .5);
        }
        .related-card .rc-img { overflow: hidden; }
        .related-card img { width: 100%; height: 190px; object-fit: cover; transition: transform .4s ease; }
        .related-card:hover img { transform: scale(1.05); }
        .related-body { padding: 22px 24px 24px; }
        .badge-soft {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent-strong);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 99px;
            margin-bottom: 10px;
        }
        .related-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-body p {
            font-size: .92rem;
            color: var(--text-secondary);
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .read-more {
            font-size: 13px;
            color: var(--accent-strong);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .read-more i { transition: transform var(--trans); }
        .related-card:hover .read-more i { transform: translateX(4px); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--trans), box-shadow var(--trans);
        }
        .faq-item:hover { border-color: rgba(212, 166, 85, .4); }
        .faq-item.open { border-color: rgba(212, 166, 85, .5); box-shadow: var(--shadow-sm); }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            transition: color var(--trans);
        }
        .faq-q i { color: var(--accent-strong); transition: transform var(--trans); font-size: 14px; flex-shrink: 0; }
        .faq-item.open .faq-q i { transform: rotate(45deg); }
        .faq-item.open .faq-q { color: var(--accent-strong); }
        .faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
        .faq-a-inner { padding: 0 22px 20px; color: var(--text-secondary); font-size: 14px; line-height: 1.75; }

        /* ===== CTA ===== */
        .cta-card {
            position: relative;
            border-radius: var(--radius-xl);
            background-size: cover;
            background-position: center;
            padding: 72px 48px;
            text-align: center;
            color: #fff;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 20, 34, .92) 0%, rgba(13, 27, 46, .78) 100%);
        }
        .cta-content { position: relative; z-index: 2; }
        .cta-content h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 12px; }
        .cta-content p { color: rgba(255, 255, 255, .78); font-size: 1.04rem; margin-bottom: 26px; max-width: 520px; margin-left: auto; margin-right: auto; }

        /* ===== Buttons ===== */
        .btn-accent {
            --bs-btn-bg: var(--accent);
            --bs-btn-border-color: var(--accent);
            --bs-btn-color: #fff;
            --bs-btn-hover-bg: var(--accent-strong);
            --bs-btn-hover-border-color: var(--accent-strong);
            --bs-btn-hover-color: #fff;
            --bs-btn-active-bg: var(--accent-strong);
            --bs-btn-active-border-color: var(--accent-strong);
            --bs-btn-active-color: #fff;
            --bs-btn-padding-x: 28px;
            --bs-btn-padding-y: 12px;
            --bs-btn-border-radius: 12px;
            --bs-btn-font-weight: 600;
            box-shadow: 0 6px 20px rgba(212, 166, 85, .3);
            transition: all var(--trans);
        }
        .btn-accent:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(212, 166, 85, .4); }
        .btn-outline-light {
            --bs-btn-padding-x: 28px;
            --bs-btn-padding-y: 12px;
            --bs-btn-border-radius: 12px;
            --bs-btn-font-weight: 600;
            transition: all var(--trans);
        }
        .btn-outline-light:hover { transform: translateY(-2px); }

        /* ===== Footer ===== */
        .site-footer {
            background: #0a1526;
            color: rgba(255, 255, 255, .7);
            padding: 64px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, .05);
            margin-top: auto;
        }
        .site-footer .footer-about p { margin-top: 18px; font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .6); max-width: 360px; }
        .site-footer .sidebar-brand { margin-bottom: 0; }
        .footer-title { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 18px; }
        .footer-links { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: all var(--trans);
        }
        .footer-links a:hover { color: var(--accent); transform: translateX(2px); }
        .footer-links i { font-size: 10px; color: var(--accent); }
        .footer-security { display: flex; flex-direction: column; gap: 12px; }
        .footer-security li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.5;
        }
        .footer-security i { color: var(--accent); width: 18px; padding-top: 2px; font-size: 13px; }
        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform .32s ease;
                box-shadow: none;
            }
            .sidebar.open { transform: translateX(0); box-shadow: 8px 0 32px rgba(0, 0, 0, .25); }
            .main-content { margin-left: 0; }
            .mobile-topbar { display: flex; }
            .sidebar-close { display: inline-flex; }
            .sidebar-overlay.show { display: block; }
            .article-card { padding: 32px 28px; }
            .not-found-card { padding: 48px 28px; }
        }

        @media (max-width: 767.98px) {
            .section { padding: 60px 0; }
            .article-hero { padding: 60px 0 100px; }
            .article-card,
            .not-found-card { padding: 24px 18px; margin-top: -52px; }
            .article-meta { gap: 14px; }
            .article-title { font-size: 1.7rem; }
            .article-desc { font-size: .98rem; }
            .cta-card { padding: 48px 24px; }
            .related-body { padding: 18px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .article-pager { flex-direction: column; }
        }

        @media (max-width: 575.98px) {
            .article-meta { gap: 10px; font-size: 13px; }
            .cta-card { padding: 40px 20px; }
            .article-card,
            .not-found-card { padding: 20px 14px; }
            .section-head { margin-bottom: 32px; }
            .section-title { font-size: 1.6rem; }
        }