/* roulang page: index */
/* ==================== 01 设计变量 ==================== */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0E1E;
  --bg-2:#111731;
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.075);
  --stroke:rgba(124,140,255,.16);
  --stroke-2:rgba(124,140,255,.30);
  --primary:#5B4BFF;
  --primary-2:#8A7BFF;
  --accent:#26E6C8;
  --hot:#FF4D8D;
  --text-1:#E9EDFF;
  --text-2:#A7B0D0;
  --text-3:#6E7899;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.35);
  --sh-2:0 14px 40px rgba(0,0,0,.5);
  --glow:0 0 24px rgba(38,230,200,.25);
  --glow-primary:0 8px 24px rgba(91,75,255,.35);
  --mono:"SF Mono","JetBrains Mono",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --wrap:1200px;
  --sec-y:88px;

  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-border-color:var(--stroke);
  --bs-primary:var(--primary);
  --bs-primary-rgb:91,75,255;
  --bs-link-color:var(--accent);
  --bs-link-hover-color:var(--accent);
  --bs-border-radius:var(--r-md);
  --bs-font-sans-serif:var(--sans);
  --bs-body-font-family:var(--sans);
  --bs-emphasis-color:var(--text-1);
}

/* ==================== 02 reset / base ==================== */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background:
    radial-gradient(760px 560px at 6% 4%, rgba(91,75,255,.20), transparent 62%),
    radial-gradient(700px 540px at 97% 92%, rgba(38,230,200,.13), transparent 60%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.18;
  background-image:
    radial-gradient(rgba(233,237,255,.85) 1px, transparent 1px),
    radial-gradient(rgba(138,123,255,.7) 1px, transparent 1px);
  background-size:190px 190px, 290px 290px;
  background-position:20px 40px, 110px 150px;
}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;line-height:1.28;color:var(--text-1);letter-spacing:.2px;}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.15;font-weight:800;}
h2{font-size:clamp(23px,2.8vw,36px);line-height:1.25;}
h3{font-size:clamp(17px,1.5vw,21px);line-height:1.35;font-weight:700;}
p{margin:0 0 1.1em;color:var(--text-2);}
a{color:var(--accent);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out;}
a:hover{color:var(--accent);}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-md);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--r-sm);box-shadow:0 0 0 4px rgba(38,230,200,.18);}
::selection{background:rgba(91,75,255,.45);color:#fff;}

/* ==================== 03 容器与栅格 ==================== */
.container{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:20px;
}
@media (min-width:1400px){ .container{max-width:1320px;} }
@media (min-width:1600px){ .container{max-width:1360px;} }
.row{--bs-gutter-x:24px;--bs-gutter-y:24px;}
.section{padding-block:var(--sec-y);position:relative;}
.section-alt{background:linear-gradient(180deg,rgba(10,14,30,0),rgba(10,14,30,.72) 22%,rgba(10,14,30,.72) 78%,rgba(10,14,30,0));}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:38px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:12px;
}
.sec-kicker::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--accent),transparent);}
.sec-title{margin:0;}
.sec-desc{max-width:640px;margin:10px 0 0;font-size:15px;color:var(--text-2);}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.link-more:hover{color:var(--accent);border-bottom-color:var(--accent);}
.link-more i{font-size:12px;transition:transform .2s ease-out;}
.link-more:hover i{transform:translateX(4px);}

/* ==================== 04 按钮 / 标签 ==================== */
.btn{
  --bs-btn-focus-box-shadow:none;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  padding:15px 28px;
  border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,color .2s ease-out,filter .2s ease-out;
  cursor:pointer;
  white-space:nowrap;
}
.btn:focus,.btn:active{box-shadow:none;}
.btn-glow{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--glow-primary);
}
.btn-glow:hover{
  color:#fff;
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 12px 34px rgba(91,75,255,.5),0 0 26px rgba(38,230,200,.22);
}
.btn-glow:active{transform:translateY(-1px);}
.btn-ghost{
  background:var(--glass);
  color:var(--text-1);
  border:1px solid var(--stroke);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--glow);}
.btn-ghost:active{transform:translateY(-1px);}
.btn-sm{padding:11px 20px;font-size:14px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;color:var(--text-2);
  background:var(--glass);border:1px solid var(--stroke);
  transition:color .2s ease-out,border-color .2s ease-out;
}
.tag:hover{color:var(--accent);border-color:var(--stroke-2);}
.tag i{color:var(--accent);font-size:11px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:500;letter-spacing:.3px;
  color:var(--accent);
  background:rgba(38,230,200,.10);
  border:1px solid rgba(38,230,200,.24);
}
.badge-hot{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
  color:var(--hot);
  background:rgba(255,77,141,.12);
  border:1px solid rgba(255,77,141,.3);
}

/* ==================== 05 导航 ==================== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(5,7,15,.55);
  transition:background .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(5,7,15,.82);
  backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.nav-main{
  display:flex;align-items:center;gap:22px;
  padding-block:14px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#05070F;font-weight:800;font-size:19px;
  box-shadow:0 6px 18px rgba(91,75,255,.4);
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.15;
  font-size:17px;font-weight:800;letter-spacing:.4px;color:var(--text-1);
}
.brand-text small{font-size:11px;font-weight:500;letter-spacing:1.4px;color:var(--text-3);text-transform:uppercase;}
.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:52%;
  min-width:280px;
}
.nav-search i{
  position:absolute;left:19px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:15px;pointer-events:none;
  transition:color .2s ease-out;
}
.nav-search input{
  width:100%;height:48px;
  padding:0 20px 0 48px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--stroke);
  color:var(--text-1);
  font-size:14.5px;
  backdrop-filter:blur(12px);
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.nav-search input::placeholder{color:#7E8AB0;}
.nav-search input:hover{border-color:var(--stroke-2);}
.nav-search input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(38,230,200,.16);
  background:rgba(255,255,255,.06);
}
.nav-search:focus-within i{color:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:0 0 auto;}
.nav-text-link{font-size:14px;font-weight:600;color:var(--text-2);}
.nav-text-link:hover{color:var(--accent);}
.nav-toggle{
  display:none;
  width:46px;height:46px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--stroke);
  color:var(--text-1);font-size:17px;
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
.nav-pills{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding-bottom:14px;
}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--text-2);
  background:var(--glass);border:1px solid var(--stroke);
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.pill:hover{color:var(--text-1);border-color:var(--stroke-2);}
.pill.active{
  color:#fff;
  background:linear-gradient(135deg,rgba(91,75,255,.9),rgba(138,123,255,.65));
  border-color:rgba(255,255,255,.14);
  box-shadow:0 6px 18px rgba(91,75,255,.32);
}
.pill i{font-size:11px;color:var(--accent);}
.pill.active i{color:#fff;}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(10,14,30,.94);
  backdrop-filter:blur(18px);
  padding:18px 0 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .pill{width:100%;justify-content:flex-start;margin-bottom:10px;}
.drawer-note{font-size:12.5px;color:var(--text-3);margin:6px 0 0;}

/* ==================== 06 Hero ==================== */
.hero{
  position:relative;
  padding-block:96px 84px;
  overflow:hidden;
  isolation:isolate;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  z-index:-2;
}
.hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(5,7,15,.72),rgba(5,7,15,.88)),
    radial-gradient(700px 460px at 78% 22%, rgba(91,75,255,.28), transparent 62%);
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--stroke);
  font-size:12.5px;font-weight:500;color:var(--text-2);
  margin-bottom:22px;
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.hero-title{margin-bottom:20px;}
.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,var(--accent),var(--primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;max-width:600px;color:var(--text-2);margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-note{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px;}
.hero-note i{color:var(--accent);}

.glass-panel{
  position:relative;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.03));
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
  padding:28px;
}
.glass-panel .panel-badge{
  position:absolute;top:-12px;right:22px;
}
.panel-title{font-size:16px;font-weight:700;margin:0 0 4px;}
.panel-note{font-size:13px;color:var(--text-3);margin:0 0 20px;}
.stat-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  margin-bottom:22px;
}
.stat-cell{background:rgba(10,14,30,.72);padding:18px 16px;}
.stat-cell b{
  display:block;
  font-family:var(--mono);
  font-size:26px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-cell span{font-size:12.5px;color:var(--text-3);}
.panel-list{margin:0 0 22px;}
.panel-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13.5px;color:var(--text-2);
  padding:9px 0;border-bottom:1px dashed var(--line);
}
.panel-list li:last-child{border-bottom:0;}
.panel-list i{color:var(--accent);font-size:12px;margin-top:5px;}
.panel-actions{display:flex;flex-direction:column;gap:10px;}
.panel-actions .btn{width:100%;}

/* ==================== 07 入口服务区 ==================== */
.entry-card{
  position:relative;
  height:100%;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.065),rgba(255,255,255,.022));
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
  overflow:hidden;
  padding:26px;
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.entry-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:.85;
}
.entry-card:hover{transform:translateY(-4px);border-color:var(--stroke-2);box-shadow:var(--sh-2);}
.entry-card h3{margin-bottom:10px;}
.entry-card .cover{border-radius:var(--r-md);overflow:hidden;margin-bottom:20px;}
.entry-card .cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease-out;}
.entry-card:hover .cover img{transform:scale(1.03);}
.icon-badge{
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;
  background:rgba(91,75,255,.16);
  border:1px solid var(--stroke);
  color:var(--accent);font-size:18px;
  margin-bottom:16px;
}
.point-list li{
  display:flex;align-items:flex-start;gap:9px;
  font-size:14px;color:var(--text-2);padding:6px 0;
}
.point-list i{color:var(--accent);font-size:11px;margin-top:7px;}

/* ==================== 08 优势数据区 ==================== */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.metric{
  padding:34px 22px;
  border-left:1px solid var(--line);
}
.metric:first-child{border-left:0;}
.metric b{
  display:block;
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3vw,42px);
  font-weight:700;line-height:1.05;
  color:var(--text-1);letter-spacing:-1px;
}
.metric b span{color:var(--accent);font-size:.6em;margin-left:3px;font-weight:600;}
.metric p{margin:10px 0 0;font-size:13.5px;color:var(--text-3);}

/* ==================== 09 内容卡片 / 资讯 ==================== */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.info-card{
  position:relative;
  display:flex;flex-direction:column;
  height:100%;
  padding:24px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.058),rgba(255,255,255,.02));
  border:1px solid var(--stroke);
  backdrop-filter:blur(12px);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.info-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--sh-2),0 0 0 1px rgba(38,230,200,.25);}
.info-card .badge-soft{align-self:flex-start;margin-bottom:14px;}
.info-title{font-size:17px;line-height:1.45;margin:0 0 10px;font-weight:700;}
.info-title a{color:var(--text-1);}
.info-title a:hover{color:var(--accent);}
.info-title a::after{content:"";position:absolute;inset:0;border-radius:var(--r-lg);}
.info-desc{
  font-size:14px;color:var(--text-2);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-meta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.info-meta time{font-family:var(--mono);font-variant-numeric:tabular-nums;}
.info-meta .meta-link{color:var(--text-2);font-weight:500;}
.info-card:hover .meta-link{color:var(--accent);}
.empty-state{
  min-height:360px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;
  border-radius:var(--r-lg);
  border:1px dashed var(--stroke);
  background:var(--glass);
  padding:40px 24px;
}
.empty-state i{font-size:34px;color:var(--text-3);}
.empty-state p{margin:0;font-size:15px;color:var(--text-2);}

/* ==================== 10 案例交错区 ==================== */
.case-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:38px 0;border-bottom:1px solid var(--line);
}
.case-row:last-child{border-bottom:0;}
.case-row.reverse .case-media{order:2;}
.case-num{
  font-family:var(--mono);
  font-size:52px;font-weight:700;line-height:1;
  color:transparent;
  -webkit-text-stroke:1px var(--stroke-2);
  margin-bottom:16px;
}
.case-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--stroke);}
.case-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;transition:transform .4s ease-out;}
.case-media:hover img{transform:scale(1.03);}
.case-body h3{margin-bottom:12px;}
.case-body p{font-size:14.5px;}
.case-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px;}

/* ==================== 11 方案步骤条 ==================== */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.steps::before{
  content:"";position:absolute;top:26px;left:8%;right:8%;
  border-top:1px dashed var(--stroke-2);z-index:0;
}
.step{
  position:relative;z-index:1;
  padding:0 4px;
}
.step-num{
  width:54px;height:54px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-weight:700;font-size:16px;
  color:var(--accent);
  background:var(--bg-2);
  border:1px solid var(--stroke-2);
  box-shadow:var(--glow);
  margin-bottom:18px;
}
.step h3{margin-bottom:8px;}
.step p{font-size:14px;margin:0;}

/* ==================== 12 FAQ ==================== */
.faq-wrap{max-width:860px;margin-inline:auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;
  background:transparent;border:0;
  color:var(--text-1);font-size:16px;font-weight:600;
  cursor:pointer;
  transition:color .2s ease-out,padding .2s ease-out;
}
.faq-q:hover{color:var(--accent);}
.faq-q i{color:var(--text-3);font-size:14px;transition:transform .25s ease-out,color .25s ease-out;flex:0 0 auto;}
.faq-item.open .faq-q{color:var(--accent);padding-left:16px;position:relative;}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  border-radius:3px;background:var(--accent);box-shadow:0 0 14px rgba(38,230,200,.6);
}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.faq-a p{padding:0 4px 22px;margin:0;font-size:14.5px;color:var(--text-2);}

/* ==================== 13 联系与表单 ==================== */
.contact-form{
  padding:30px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:10px;}
.form-control,.form-select{
  width:100%;height:48px;
  padding:0 16px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--stroke);
  color:var(--text-1);
  font-size:14.5px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
textarea.form-control{height:auto;min-height:118px;padding:13px 16px;line-height:1.7;resize:vertical;}
.form-control::placeholder{color:#7E8AB0;}
.form-control:hover,.form-select:hover{border-color:var(--stroke-2);}
.form-control:focus,.form-select:focus{
  outline:none;
  background:rgba(255,255,255,.06);
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(38,230,200,.16);
}
.form-select option{background:var(--bg-2);color:var(--text-1);}
.field{margin-bottom:20px;}
.form-hint{font-size:12.5px;color:var(--text-3);margin:12px 0 0;}
.info-bar{
  height:100%;
  padding:30px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
}
.info-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.info-item:last-child{border-bottom:0;padding-bottom:0;}
.info-item:first-child{padding-top:0;}
.info-item .icon-badge{margin-bottom:0;width:42px;height:42px;flex:0 0 42px;}
.info-item h3{font-size:15px;margin:0 0 4px;}
.info-item p{margin:0;font-size:14px;color:var(--text-2);}

/* ==================== 14 页脚 ==================== */
.site-footer{
  margin-top:var(--sec-y);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,14,30,.5),rgba(5,7,15,.95));
  padding-top:64px;
}
.footer-col{margin-bottom:34px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text-1);margin:0 0 18px;letter-spacing:.4px;}
.footer-about{font-size:14px;color:var(--text-2);margin:0 0 18px;max-width:320px;}
.footer-link{
  display:block;
  font-size:14px;color:var(--text-2);
  padding:6px 0;
  transition:color .2s ease-out,transform .2s ease-out;
}
.footer-link:hover{color:var(--accent);transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--accent);}
.footer-brand{display:inline-flex;align-items:center;gap:11px;margin-bottom:16px;}

/* ==================== 15 CTA 条 ==================== */
.cta-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:32px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(91,75,255,.18),rgba(38,230,200,.08));
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);margin:0 0 6px;}
.cta-bar p{margin:0;font-size:14.5px;}

/* ==================== 16 响应式 ==================== */
@media (max-width:1199.98px){
  :root{--sec-y:64px;--wrap:100%;}
  .nav-search{max-width:44%;}
  .info-grid{grid-template-columns:repeat(2,1fr);}
  .case-row{gap:32px;}
}
@media (max-width:991.98px){
  :root{--sec-y:64px;}
  .nav-main{flex-wrap:wrap;gap:14px;}
  .nav-search{order:3;width:100%;max-width:100%;min-width:0;margin-top:6px;}
  .nav-actions .btn-glow{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-pills{display:none;}
  .hero{padding-block:72px 64px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric{border-left:1px solid var(--line);}
  .metric:nth-child(odd){border-left:0;}
  .metric:nth-child(n+3){border-top:1px solid var(--line);}
  .steps{grid-template-columns:1fr;gap:30px;}
  .steps::before{display:none;}
  .case-row{grid-template-columns:1fr;gap:24px;}
  .case-row.reverse .case-media{order:0;}
  .case-num{font-size:40px;}
}
@media (max-width:767.98px){
  :root{--sec-y:52px;}
  body{font-size:15.5px;}
  .info-grid{grid-template-columns:1fr;}
  .hero-title{font-size:clamp(26px,7vw,34px);}
  .hero-sub{font-size:15.5px;}
  .glass-panel{padding:22px;}
  .contact-form,.info-bar{padding:22px;}
  .entry-card{padding:22px;}
  .info-card{padding:20px;}
  .cta-bar{padding:22px;flex-direction:column;align-items:flex-start;}
  .sec-head{margin-bottom:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .metrics{grid-template-columns:1fr;}
  .metric{border-left:0;border-top:1px solid var(--line);padding:24px 4px;}
  .metric:first-child{border-top:0;}
  .stat-grid{grid-template-columns:1fr;}
  .hero-cta .btn{width:100%;}
  .brand-text{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0E1E;
  --bg-2:#111731;
  --glass:rgba(255,255,255,.045);
  --stroke:rgba(124,140,255,.16);
  --primary:#5B4BFF;
  --primary-2:#8A7BFF;
  --accent:#26E6C8;
  --hot:#FF4D8D;
  --text-1:#E9EDFF;
  --text-2:#A7B0D0;
  --text-3:#6E7899;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.35);
  --sh-2:0 14px 40px rgba(0,0,0,.5);
  --glow:0 0 24px rgba(38,230,200,.25);
  --ff:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --fm:"SF Mono","JetBrains Mono",Consolas,monospace;
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-primary:var(--primary);
  --bs-link-color:var(--accent);
  --bs-link-hover-color:var(--accent);
  --bs-border-color:var(--stroke);
  --bs-border-radius:var(--r-md);
  --bs-font-sans-serif:var(--ff);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.78;
  color:var(--text-1);
  background:var(--bg-0);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(1000px 620px at 10% -12%,rgba(91,75,255,.30),transparent 62%),
    radial-gradient(900px 620px at 102% 108%,rgba(38,230,200,.16),transparent 65%),
    var(--bg-0);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:34px 34px;
  opacity:.2;
}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  box-shadow:0 0 0 4px rgba(38,230,200,.16);
}
img{max-width:100%;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;}
p{margin:0 0 1em;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (min-width:1600px){.container{max-width:1400px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(5,7,15,.72);
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,border-color .24s ease-out,backdrop-filter .24s ease-out;
}
.site-header.scrolled{
  background:rgba(5,7,15,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-main{display:flex;align-items:center;gap:22px;padding:16px 0 10px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#05070F;font-weight:800;font-size:18px;
  box-shadow:0 0 18px rgba(91,75,255,.45);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.4px;color:var(--text-1);white-space:nowrap;}
.nav-search{position:relative;flex:1 1 auto;max-width:580px;min-width:180px;}
.nav-search input{
  width:100%;height:48px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--stroke);
  padding:0 20px 0 48px;color:var(--text-1);outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.nav-search input::placeholder{color:#7E8AB0;}
.nav-search input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(38,230,200,.14);background:rgba(255,255,255,.06);}
.nav-search .fa-magnifying-glass{position:absolute;left:20px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:15px;pointer-events:none;}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-text-link{font-size:14px;color:var(--text-2);}
.nav-text-link:hover{color:var(--accent);}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-size:14.5px;font-weight:600;white-space:nowrap;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 8px 24px rgba(91,75,255,.35);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 12px 32px rgba(91,75,255,.5),0 0 22px rgba(38,230,200,.28);color:#fff;}
.btn-glow:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--stroke);
  color:var(--text-1);font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--accent);}
.btn-ghost:active{transform:translateY(1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--stroke);color:var(--text-1);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
.nav-pills{
  display:flex;align-items:center;gap:10px;
  padding:6px 0 14px;
  overflow-x:auto;scrollbar-width:none;
}
.nav-pills::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--stroke);
  color:var(--text-2);font-size:14px;font-weight:500;white-space:nowrap;
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.pill i{font-size:12.5px;color:var(--text-3);transition:color .2s ease-out;}
.pill:hover{color:var(--accent);border-color:var(--accent);}
.pill:hover i{color:var(--accent);}
.pill.active{color:var(--accent);border-color:rgba(38,230,200,.55);background:rgba(38,230,200,.08);}
.pill.active i{color:var(--accent);}
.mobile-panel{display:none;padding:0 0 18px;}
.mobile-panel.open{display:block;}
.mobile-panel .nav-search{max-width:none;margin-bottom:12px;}
.mobile-panel .nav-pills{flex-wrap:wrap;overflow:visible;padding-bottom:0;}
.mobile-panel .nav-text-link{display:inline-block;margin-top:12px;}

/* ============ 面包屑与文章头部 ============ */
.article-hero{padding:30px 0 6px;}
.breadcrumb-nav{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb-nav a:hover{color:var(--accent);}
.breadcrumb-nav .crumb-sep{color:rgba(255,255,255,.22);}
.breadcrumb-nav .crumb-current{
  color:var(--text-2);max-width:60%;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-head{max-width:880px;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,77,141,.12);border:1px solid rgba(255,77,141,.35);
  color:#FF87B3;font-size:12.5px;font-weight:500;
}
.article-title{font-size:clamp(28px,4vw,42px);line-height:1.22;margin:16px 0 18px;color:#FFFFFF;}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--text-3);font-family:var(--fm);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;}

/* ============ 正文区 ============ */
.article-body-section{padding:26px 0 72px;}
.article-wrap{max-width:800px;margin:0 auto;}
.article-content{font-size:16px;line-height:1.85;color:#D5DBF5;}
.article-content p{margin:0 0 1.6em;}
.article-content h2{
  font-size:clamp(21px,2.2vw,26px);line-height:1.4;
  margin:1.9em 0 .8em;padding-left:14px;
  border-left:3px solid var(--accent);color:#FFFFFF;
}
.article-content h3{
  font-size:19px;line-height:1.45;
  margin:1.6em 0 .7em;padding-left:12px;
  border-left:3px solid rgba(38,230,200,.55);color:#FFFFFF;
}
.article-content h4{font-size:17px;margin:1.4em 0 .6em;color:#FFFFFF;}
.article-content ul,.article-content ol{margin:0 0 1.6em;padding-left:1.35em;list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:.7em;line-height:1.8;}
.article-content blockquote{
  margin:1.6em 0;padding:16px 20px;
  border-left:3px solid var(--accent);
  background:var(--glass);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--text-2);
  box-shadow:var(--glow);
}
.article-content img{border-radius:12px;margin:1.6em auto;}
.article-content figure{margin:1.6em 0;}
.article-content figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;}
.article-content pre{
  background:var(--bg-1);border:1px solid var(--stroke);
  border-radius:var(--r-md);padding:18px 20px;overflow-x:auto;
  font-family:var(--fm);font-size:13.5px;line-height:1.7;
  color:#C6D0F5;margin:0 0 1.6em;
}
.article-content code{
  font-family:var(--fm);font-size:.92em;
  background:rgba(91,75,255,.16);padding:2px 6px;border-radius:6px;
  color:#B9B2FF;
}
.article-content pre code{background:none;padding:0;color:inherit;}
.article-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:#FFFFFF;}
.article-content strong{color:#FFFFFF;}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-content table{width:100%;border-collapse:collapse;margin:0 0 1.6em;font-size:14.5px;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-content th{background:var(--glass);color:#FFFFFF;font-weight:600;}

.article-foot{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--stroke);
  transition:color .2s ease-out,border-color .2s ease-out;
}
.tag-pill:hover{color:var(--accent);border-color:var(--accent);}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.cta-bar{
  margin-top:36px;padding:26px 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(91,75,255,.16),rgba(38,230,200,.08));
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.cta-bar h3{font-size:19px;margin-bottom:6px;}
.cta-bar p{margin:0;font-size:14px;color:var(--text-2);}
.empty-state{
  text-align:center;padding:72px 24px;
  border:1px dashed var(--stroke);border-radius:var(--r-lg);
  background:var(--glass);
}
.empty-state i{font-size:34px;color:var(--text-3);margin-bottom:16px;display:block;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:14.5px;margin-bottom:22px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:64px;padding:64px 0 0;
  background:var(--bg-1);border-top:1px solid var(--line);
}
.footer-col{margin-bottom:28px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:17px;}
.footer-about{color:var(--text-2);font-size:14px;line-height:1.8;margin-bottom:10px;max-width:330px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:14px;letter-spacing:.4px;}
.footer-link{display:block;font-size:14px;color:var(--text-2);padding:6px 0;transition:color .2s ease-out;}
.footer-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:36px;border-top:1px solid var(--line);
  padding:20px 0 24px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-search{max-width:420px;}
}
@media (max-width:991px){
  .nav-main{gap:14px;}
  .nav-search,.nav-pills{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .site-header .nav-pills{display:none;}
  .mobile-panel .nav-pills{display:flex;}
  .nav-actions .nav-text-link{display:none;}
  .article-hero{padding:22px 0 4px;}
}
@media (max-width:767px){
  .article-body-section{padding:18px 0 56px;}
  .article-content{font-size:15.5px;line-height:1.8;}
  .article-content h2{font-size:20px;}
  .article-content h3{font-size:17.5px;}
  .breadcrumb-nav .crumb-current{max-width:100%;white-space:normal;}
  .cta-bar{padding:22px 20px;}
  .cta-bar .btn-glow{width:100%;}
  .site-footer{padding-top:48px;}
}
@media (max-width:575px){
  .container{padding:0 18px;}
  .brand-text{font-size:16px;}
  .brand-mark{width:32px;height:32px;font-size:16px;border-radius:10px;}
  .btn-glow,.btn-ghost{height:42px;padding:0 18px;font-size:14px;}
  .article-title{font-size:26px;}
  .article-actions .btn-glow,.article-actions .btn-ghost{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  body::after{display:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0E1E;
  --bg-2:#111731;
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.075);
  --stroke:rgba(124,140,255,.16);
  --stroke-2:rgba(124,140,255,.3);
  --primary:#5B4BFF;
  --primary-2:#8A7BFF;
  --accent:#26E6C8;
  --hot:#FF4D8D;
  --text-1:#E9EDFF;
  --text-2:#A7B0D0;
  --text-3:#6E7899;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.35);
  --sh-2:0 14px 40px rgba(0,0,0,.5);
  --glow:0 0 24px rgba(38,230,200,.25);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:"SF Mono","JetBrains Mono","Roboto Mono",Consolas,monospace;
  --bs-body-bg:#05070F;
  --bs-body-color:#E9EDFF;
  --bs-primary:#5B4BFF;
  --bs-secondary:#8A7BFF;
  --bs-border-color:rgba(124,140,255,.16);
  --bs-link-color:#A7B0D0;
  --bs-link-hover-color:#26E6C8;
  --bs-border-radius:14px;
  --bs-font-sans-serif:var(--font-sans);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.78;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 520px at 8% -6%, rgba(91,75,255,.22), transparent 68%),
    radial-gradient(680px 480px at 96% 12%, rgba(38,230,200,.14), transparent 70%),
    radial-gradient(560px 420px at 50% 108%, rgba(255,77,141,.08), transparent 72%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.5;
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(255,255,255,.32), transparent 100%),
    radial-gradient(1px 1px at 34% 68%, rgba(255,255,255,.24), transparent 100%),
    radial-gradient(1px 1px at 58% 16%, rgba(255,255,255,.28), transparent 100%),
    radial-gradient(1px 1px at 72% 52%, rgba(255,255,255,.2), transparent 100%),
    radial-gradient(1px 1px at 88% 78%, rgba(255,255,255,.26), transparent 100%),
    radial-gradient(1px 1px at 46% 88%, rgba(255,255,255,.18), transparent 100%);
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,opacity .2s ease-out;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.2px;color:var(--text-1);}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.15;}
h2{font-size:clamp(23px,2.8vw,36px);line-height:1.25;}
h3{font-size:clamp(17px,1.5vw,21px);line-height:1.35;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(91,75,255,.45);color:#fff;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;position:relative;z-index:2;}
@media(min-width:1400px){.container{max-width:1320px;}}
@media(min-width:1600px){.container{max-width:1400px;}}
.section{padding:88px 0;position:relative;z-index:2;}
.section-tight{padding:56px 0 88px;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:2px;text-transform:uppercase;
  color:var(--accent);font-family:var(--font-mono);margin-bottom:14px;
}
.section-eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block;}
.section-desc{color:var(--text-2);font-size:15.5px;margin-top:12px;line-height:1.8;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,7,15,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.is-scrolled{
  background:rgba(5,7,15,.92);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav-top{
  display:flex;align-items:center;gap:22px;
  padding:14px 0 10px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text-1);}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 6px 20px rgba(91,75,255,.45),inset 0 0 0 1px rgba(255,255,255,.12);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.5px;}
.brand-sub{font-size:11.5px;color:var(--text-3);letter-spacing:2.4px;font-family:var(--font-mono);}
.nav-search{
  flex:1 1 auto;max-width:620px;position:relative;margin:0 auto;
}
.nav-search .fa-magnifying-glass{
  position:absolute;left:20px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:15px;pointer-events:none;
}
.nav-search input{
  width:100%;height:48px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--stroke);
  color:var(--text-1);padding:0 22px 0 48px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.nav-search input::placeholder{color:#7E8AB0;}
.nav-search input:focus{
  outline:none;border-color:var(--accent);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 4px rgba(38,230,200,.14);
}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-link-text{font-size:14px;color:var(--text-2);white-space:nowrap;}
.nav-link-text:hover{color:var(--accent);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--stroke);color:var(--text-1);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
.nav-pills{
  display:flex;gap:10px;overflow-x:auto;padding:4px 0 14px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-pills::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:var(--glass);
  color:var(--text-2);font-size:14px;font-weight:500;white-space:nowrap;
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.pill i{font-size:12.5px;opacity:.85;}
.pill:hover{color:var(--accent);border-color:rgba(38,230,200,.5);background:rgba(38,230,200,.06);}
.pill.active{
  color:#fff;border-color:rgba(138,123,255,.6);
  background:linear-gradient(135deg,rgba(91,75,255,.92),rgba(138,123,255,.72));
  box-shadow:0 8px 24px rgba(91,75,255,.32);
}
.mobile-drawer{display:none;}
@media(max-width:991.98px){
  .nav-search{display:none;}
  .nav-actions .nav-link-text{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-top{padding:12px 0;}
  .mobile-drawer{display:block;padding:0 0 18px;}
  .mobile-drawer .nav-search{display:block;max-width:none;margin:0 0 14px;}
  .mobile-drawer .drawer-cta{display:flex;gap:12px;flex-wrap:wrap;}
}

/* ---------- 按钮 ---------- */
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;letter-spacing:.3px;
  cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-glow{
  color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 8px 24px rgba(91,75,255,.35),inset 0 0 0 1px rgba(255,255,255,.08);
}
.btn-glow:hover{
  color:#fff;transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(91,75,255,.5),0 0 22px rgba(38,230,200,.25),inset 0 0 0 1px rgba(255,255,255,.12);
  filter:brightness(1.08);
}
.btn-glow:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--text-1);background:var(--glass);border-color:var(--stroke);
}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent);background:rgba(38,230,200,.06);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 20px;font-size:13.5px;}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0;font-size:13.5px;color:var(--text-3);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0;padding:0;list-style:none;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--accent);}
.crumb li.current{color:var(--text-2);}
.crumb .sep{opacity:.5;}

/* ---------- 分类头部 ---------- */
.cat-hero{
  position:relative;margin-top:26px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--stroke);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--sh-2);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(5,7,15,.94) 6%,rgba(5,7,15,.8) 46%,rgba(5,7,15,.62) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:58px 52px 54px;max-width:820px;}
.cat-hero h1{margin:14px 0 18px;}
.cat-hero h1 .accent-line{
  display:block;width:64px;height:4px;border-radius:4px;margin-top:16px;
  background:linear-gradient(90deg,var(--accent),rgba(38,230,200,0));
  box-shadow:var(--glow);
}
.cat-hero p{color:var(--text-2);font-size:15.5px;line-height:1.85;max-width:720px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:var(--glass);
  font-size:12.5px;color:var(--text-2);
}
.tag i{color:var(--accent);font-size:11px;}

/* ---------- 统计条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:34px;
}
.stat-item{padding:26px 12px;text-align:center;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{font-family:var(--font-mono);font-size:clamp(24px,3vw,34px);font-weight:700;color:var(--accent);letter-spacing:1px;}
.stat-label{font-size:12.5px;color:var(--text-3);margin-top:6px;}

/* ---------- 卡片网格 ---------- */
.card-grid .col-lg-4{margin-bottom:0;}
.entry-card{
  height:100%;display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--stroke);
  border-radius:var(--r-md);overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.entry-card::before{
  content:"";display:block;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:.75;
}
.entry-card:hover{
  transform:translateY(-5px);
  border-color:rgba(38,230,200,.55);
  box-shadow:var(--sh-2),0 0 22px rgba(38,230,200,.16);
}
.entry-thumb{display:block;overflow:hidden;background:var(--bg-2);}
.entry-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease-out;}
.entry-card:hover .entry-thumb img{transform:scale(1.03);}
.entry-body{padding:24px;display:flex;flex-direction:column;flex:1 1 auto;gap:12px;}
.badge-tag{
  align-self:flex-start;
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;color:var(--accent);
  background:rgba(38,230,200,.08);border:1px solid rgba(38,230,200,.26);
}
.badge-tag.hot{color:var(--hot);background:rgba(255,77,141,.08);border-color:rgba(255,77,141,.3);}
.entry-title{font-size:18px;line-height:1.4;font-weight:700;}
.entry-title a{color:var(--text-1);}
.entry-title a:hover{color:var(--accent);}
.entry-desc{
  color:var(--text-2);font-size:14.5px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);font-family:var(--font-mono);
}
.entry-meta .more{color:var(--primary-2);font-family:var(--font-sans);}
.entry-card:hover .entry-meta .more{color:var(--accent);}

/* ---------- 场景列表（横向卡） ---------- */
.scene-list{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.scene-row{
  display:grid;grid-template-columns:78px 1fr;gap:24px;align-items:flex-start;
  padding:26px 22px;border-bottom:1px solid var(--line);
  transition:background .22s ease-out,border-color .22s ease-out;
}
.scene-row:hover{background:rgba(255,255,255,.03);border-color:var(--stroke-2);}
.scene-icon{
  width:62px;height:62px;border-radius:var(--r-md);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:22px;color:var(--accent);
  background:rgba(38,230,200,.07);border:1px solid rgba(38,230,200,.22);
}
.scene-row h3{font-size:18px;margin-bottom:8px;}
.scene-row p{color:var(--text-2);font-size:14.5px;margin:0;}

/* ---------- 步骤条 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:14px;}
.steps::before{
  content:"";position:absolute;top:26px;left:8%;right:8%;height:1px;
  background:repeating-linear-gradient(90deg,var(--stroke-2) 0 8px,transparent 8px 16px);
}
.step{position:relative;padding-top:0;}
.step-num{
  width:52px;height:52px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-weight:700;font-size:17px;color:var(--accent);
  background:var(--bg-0);border:1px solid rgba(38,230,200,.4);
  box-shadow:0 0 18px rgba(38,230,200,.18);position:relative;z-index:2;
}
.step h3{margin:18px 0 10px;font-size:18px;}
.step p{color:var(--text-2);font-size:14.5px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion-item{
  background:var(--glass);border:0;border-bottom:1px solid var(--line);
  border-radius:0!important;
}
.accordion-item:first-of-type{border-top:1px solid var(--line);}
.accordion-button{
  background:transparent;color:var(--text-1);
  font-size:16.5px;font-weight:600;padding:22px 8px 22px 20px;
  box-shadow:none!important;border-radius:0!important;
  transition:color .2s ease-out;
}
.accordion-button::after{
  filter:invert(85%) sepia(20%) saturate(600%) hue-rotate(120deg);
  transition:transform .22s ease-out;
}
.accordion-button:not(.collapsed){color:var(--accent);background:transparent;}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.accordion-button:hover{color:var(--accent);}
.accordion-button:focus{outline:2px solid var(--accent);outline-offset:-4px;}
.accordion-body{
  color:var(--text-2);font-size:14.8px;padding:0 24px 24px 20px;line-height:1.85;
}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-left:3px solid var(--accent);
  box-shadow:-6px 0 18px rgba(38,230,200,.12);
}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--r-lg);border:1px solid var(--stroke);
  background:linear-gradient(120deg,rgba(91,75,255,.16),rgba(38,230,200,.08));
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:46px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-1);
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,14,30,.6),rgba(5,7,15,.95));
  padding:64px 0 0;position:relative;z-index:2;
}
.footer-col{margin-bottom:34px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
.footer-brand .brand-text{font-size:16px;font-weight:800;letter-spacing:.4px;}
.footer-about{color:var(--text-2);font-size:14px;line-height:1.8;margin-bottom:10px;}
.footer-title{font-size:14px;font-weight:600;letter-spacing:1px;color:var(--text-1);margin-bottom:16px;}
.footer-link{
  display:block;font-size:14px;color:var(--text-2);margin-bottom:10px;
  text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;
  transition:color .2s ease-out,text-decoration-color .2s ease-out;
}
.footer-link:hover{color:var(--accent);text-decoration-color:var(--accent);}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:14px;padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);font-family:var(--font-mono);
}

/* ---------- 响应式 ---------- */
@media(max-width:1199.98px){
  .cat-hero-inner{padding:48px 36px;}
}
@media(max-width:991.98px){
  .section{padding:64px 0;}
  .steps{grid-template-columns:1fr;gap:22px;}
  .steps::before{display:none;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-band{padding:36px 28px;}
}
@media(max-width:767.98px){
  .section{padding:52px 0;}
  .cat-hero-inner{padding:38px 22px;}
  .entry-body{padding:20px;}
  .scene-row{grid-template-columns:1fr;gap:14px;padding:22px 6px;}
  .cta-band{padding:30px 22px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0E1E;
  --bg-2:#111731;
  --glass:rgba(255,255,255,.045);
  --stroke:rgba(124,140,255,.16);
  --primary:#5B4BFF;
  --primary-2:#8A7BFF;
  --accent:#26E6C8;
  --hot:#FF4D8D;
  --text-1:#E9EDFF;
  --text-2:#A7B0D0;
  --text-3:#6E7899;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.35);
  --sh-2:0 14px 40px rgba(0,0,0,.5);
  --glow:0 0 24px rgba(38,230,200,.25);
  --mono:"SF Mono","JetBrains Mono",Consolas,"Courier New",monospace;
  --bs-primary:#5B4BFF;
  --bs-body-bg:#05070F;
  --bs-body-color:#E9EDFF;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#A7B0D0;
  --bs-link-hover-color:#26E6C8;
  --bs-border-radius:14px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:hidden;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-0);
  color:var(--text-1);
  font-size:16px;
  line-height:1.78;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 620px at 6% -4%, rgba(91,75,255,.24), transparent 62%),
    radial-gradient(820px 640px at 100% 78%, rgba(38,230,200,.13), transparent 66%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(1.2px 1.2px at 8% 12%, rgba(255,255,255,.30), transparent 62%),
    radial-gradient(1px 1px at 26% 38%, rgba(255,255,255,.22), transparent 62%),
    radial-gradient(1.4px 1.4px at 44% 8%, rgba(255,255,255,.30), transparent 62%),
    radial-gradient(1px 1px at 62% 46%, rgba(255,255,255,.20), transparent 62%),
    radial-gradient(1.2px 1.2px at 78% 22%, rgba(255,255,255,.28), transparent 62%),
    radial-gradient(1px 1px at 92% 58%, rgba(255,255,255,.18), transparent 62%),
    radial-gradient(1.1px 1.1px at 16% 74%, rgba(255,255,255,.22), transparent 62%),
    radial-gradient(1px 1px at 70% 86%, rgba(255,255,255,.18), transparent 62%);
  background-size:620px 620px;
}
img{max-width:100%;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out;}
a:hover{color:var(--accent);}
button,input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:0 0 0 4px rgba(38,230,200,.18);}
h1,h2,h3,h4{color:#fff;font-weight:800;letter-spacing:-.3px;margin:0;}
p{margin:0 0 16px;}
[id]{scroll-margin-top:104px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:2;}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (min-width:1600px){.container{max-width:1400px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,border-color .24s ease-out;
}
.site-header.is-scrolled{background:rgba(5,7,15,.92);border-bottom-color:var(--line);}
.header-main{display:flex;align-items:center;gap:20px;padding:14px 0 8px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-size:18px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 8px 22px rgba(91,75,255,.38);
}
.brand-text{font-size:19px;font-weight:800;color:var(--text-1);letter-spacing:.4px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--accent);}
.nav-search{position:relative;flex:1 1 420px;max-width:560px;}
.nav-search i{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:#7E8AB0;font-size:15px;pointer-events:none;}
.nav-search input{
  width:100%;height:48px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--stroke);color:var(--text-1);
  font-size:14px;padding:0 20px 0 48px;outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.nav-search input::placeholder{color:#7E8AB0;}
.nav-search input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(38,230,200,.14);background:rgba(255,255,255,.06);}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;}
.link-quiet{font-size:14px;color:var(--text-2);padding:6px 2px;border-bottom:1px solid transparent;}
.link-quiet:hover{color:var(--accent);border-bottom-color:rgba(38,230,200,.55);}
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;line-height:1;
  transition:transform .2s ease-out,box-shadow .2s ease-out,color .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
}
.btn-glow{
  color:#fff;background:linear-gradient(135deg,var(--primary),#6E5CFF);
  box-shadow:0 8px 24px rgba(91,75,255,.35),inset 0 0 0 1px rgba(255,255,255,.08);
}
.btn-glow:hover{
  transform:translateY(-2px);filter:brightness(1.08);color:#fff;
  box-shadow:0 12px 32px rgba(91,75,255,.5),0 0 24px rgba(38,230,200,.25),inset 0 0 0 1px rgba(255,255,255,.12);
}
.btn-glow:active{transform:translateY(1px);}
.btn-ghost{color:var(--text-1);background:transparent;border-color:var(--stroke);}
.btn-ghost:hover{color:var(--accent);border-color:var(--accent);box-shadow:var(--glow);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:14px;border:1px solid var(--stroke);
  background:var(--glass);color:var(--text-1);cursor:pointer;
  align-items:center;justify-content:center;font-size:16px;
  transition:border-color .2s ease-out,color .2s ease-out;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
.nav-pills{display:flex;gap:10px;overflow-x:auto;padding:0 0 14px;scrollbar-width:none;}
.nav-pills::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:var(--glass);color:var(--text-2);
  font-size:14px;white-space:nowrap;
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.pill i{font-size:13px;color:var(--text-3);transition:color .2s ease-out;}
.pill:hover{color:var(--text-1);border-color:rgba(38,230,200,.45);background:rgba(255,255,255,.07);transform:translateY(-1px);}
.pill:hover i{color:var(--accent);}
.pill.active{
  color:#fff;border-color:rgba(138,123,255,.75);
  background:linear-gradient(135deg,rgba(91,75,255,.95),rgba(91,75,255,.55));
  box-shadow:0 8px 22px rgba(91,75,255,.35);
}
.pill.active i{color:#fff;}
.mobile-drawer{display:none;border-top:1px solid var(--line);padding:14px 0 18px;}
.mobile-drawer.open{display:block;}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:12px;font-size:15px;color:var(--text-2);}
.drawer-links a:hover,.drawer-links a.active{background:var(--glass);color:var(--accent);}

/* ============ 页面头 ============ */
.page-hero{position:relative;overflow:hidden;padding:56px 0 58px;border-bottom:1px solid var(--line);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.38;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.72),rgba(5,7,15,.94));
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb-nav a{color:var(--text-2);}
.breadcrumb-nav a:hover{color:var(--accent);}
.breadcrumb-nav .sep{color:var(--text-3);opacity:.55;}
.breadcrumb-nav .current{color:var(--text-1);}
.hero-title{font-size:clamp(30px,4.2vw,50px);line-height:1.15;margin:0 0 20px;}
.hero-title-soft{display:block;font-size:.56em;font-weight:700;color:var(--accent);letter-spacing:.5px;margin-bottom:8px;}
.hero-lead{max-width:820px;color:var(--text-2);font-size:15.5px;margin:0 0 24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag-chip{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:var(--glass);
  font-size:13px;color:var(--text-2);font-weight:500;
}
.tag-chip i{color:var(--accent);font-size:12px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-tight{padding:44px 0 0;}
.section-head{margin-bottom:40px;max-width:780px;}
.section-eyebrow{display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--accent);margin-bottom:12px;font-weight:600;}
.section-title{font-size:clamp(23px,2.8vw,36px);line-height:1.25;margin:0 0 12px;}
.section-desc{color:var(--text-2);font-size:15px;margin:0;}

/* 数据横条 */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0));
}
.stat-item{padding:30px 22px;text-align:center;border-left:1px solid var(--line);}
.stat-item:first-child{border-left:none;}
.stat-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3vw,38px);font-weight:700;color:var(--accent);line-height:1.1;letter-spacing:-1px;
}
.stat-label{font-size:13.5px;color:var(--text-2);margin-top:10px;}

/* 横向图文列表 */
.media-list{border-top:1px solid var(--line);}
.media-item{position:relative;padding:28px 0;border-bottom:1px solid var(--line);}
.media-item::before{
  content:"";position:absolute;left:0;top:-1px;height:1px;width:0;
  background:linear-gradient(90deg,var(--accent),rgba(38,230,200,0));
  transition:width .32s ease-out;
}
.media-item:hover::before{width:100%;}
.media-thumb{border-radius:var(--r-md);overflow:hidden;background:var(--bg-2);aspect-ratio:16/10;}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.media-item:hover .media-thumb img{transform:scale(1.03);}
.media-badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;color:var(--accent);
  background:rgba(38,230,200,.10);border:1px solid rgba(38,230,200,.26);
}
.media-badge.hot{color:var(--hot);background:rgba(255,77,141,.10);border-color:rgba(255,77,141,.28);}
.media-title{font-size:19px;line-height:1.4;margin:12px 0 8px;color:#fff;}
.media-item:hover .media-title{color:var(--accent);}
.media-text{
  color:var(--text-2);font-size:14.5px;margin:0 0 14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.media-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--text-3);font-family:var(--mono);
}
.media-meta .meta-link{color:var(--text-2);font-family:inherit;font-size:13px;}
.media-meta .meta-link:hover{color:var(--accent);}

/* 场景列表 */
.scene-list{border-top:1px solid var(--line);}
.scene-item{
  display:grid;grid-template-columns:240px 1fr;gap:28px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.scene-key{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:700;color:#fff;}
.scene-key .num{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:1px;}
.scene-val{color:var(--text-2);font-size:15px;margin:0;}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;margin-top:10px;}
.steps::before{
  content:"";position:absolute;top:22px;left:7%;right:7%;
  border-top:1px dashed rgba(124,140,255,.35);z-index:0;
}
.step{position:relative;z-index:1;}
.step-dot{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--mono);font-weight:700;font-size:14px;color:var(--accent);
  background:var(--bg-1);border:1px solid var(--stroke);
  box-shadow:0 0 0 6px var(--bg-0);
}
.step h3{font-size:17px;line-height:1.4;margin:16px 0 8px;}
.step p{font-size:14px;color:var(--text-2);margin:0;}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-wrap .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line);}
.faq-wrap .accordion-button{
  position:relative;background:transparent;color:var(--text-1);
  font-size:16px;font-weight:600;line-height:1.55;
  padding:22px 46px 22px 0;box-shadow:none;
  transition:color .2s ease-out,padding .2s ease-out;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--accent);padding-left:16px;box-shadow:inset 3px 0 0 var(--accent);}
.faq-wrap .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-wrap .accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}
.faq-wrap .accordion-button::after{
  content:"";position:absolute;right:8px;top:50%;width:9px;height:9px;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  background-image:none;
  transform:translateY(-70%) rotate(45deg);
  transition:transform .24s ease-out;
}
.faq-wrap .accordion-button:not(.collapsed)::after{transform:translateY(-35%) rotate(-135deg);}
.faq-wrap .accordion-body{color:var(--text-2);font-size:14.5px;padding:0 46px 24px 16px;}
.faq-wrap .accordion-button:not(.collapsed)+.accordion-collapse .accordion-body{padding-left:16px;}

/* CTA */
.cta-band{
  border-radius:var(--r-lg);border:1px solid var(--stroke);
  background:linear-gradient(135deg,rgba(91,75,255,.18),rgba(38,230,200,.08)),var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-1);
}
.cta-band h2{font-size:clamp(21px,2.4vw,29px);line-height:1.32;margin:0 0 10px;}
.cta-band p{color:var(--text-2);font-size:14.5px;margin:0;max-width:640px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.back-home{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.back-home:hover{color:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:56px 0 0;position:relative;z-index:2;}
.footer-col{margin-bottom:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px;letter-spacing:.5px;}
.footer-about{color:var(--text-2);font-size:14px;margin:0 0 10px;max-width:330px;}
.footer-link{display:block;color:var(--text-2);font-size:14px;padding:5px 0;transition:color .2s ease-out;}
.footer-link:hover{color:var(--accent);text-underline-offset:4px;text-decoration:underline;text-decoration-thickness:1px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0;font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-search{max-width:440px;}
}
@media (max-width:991.98px){
  .header-main{flex-wrap:wrap;padding:12px 0 10px;gap:14px;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .header-actions{display:none;}
  .nav-search{order:4;flex:1 0 100%;max-width:none;}
  .nav-pills{display:none;}
  .section{padding:64px 0;}
  .section-tight{padding:34px 0 0;}
  .cta-band{padding:32px;}
  .scene-item{grid-template-columns:190px 1fr;gap:20px;}
}
@media (max-width:767.98px){
  .section{padding:52px 0;}
  .page-hero{padding:38px 0 44px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .stat-item{padding:22px 16px;border-top:1px solid var(--line);}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-top:none;}
  .stat-item:nth-child(odd){border-left:none;}
  .media-item{padding:24px 0;}
  .media-text{-webkit-line-clamp:3;}
  .scene-item{grid-template-columns:1fr;gap:10px;padding:22px 0;}
  .steps{grid-template-columns:1fr;gap:26px;}
  .steps::before{display:none;}
  .step{display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;}
  .step h3{margin:6px 0 6px;}
  .step h3,.step p{grid-column:2;}
  .step-dot{grid-row:1/3;box-shadow:none;}
  .cta-band{padding:26px;flex-direction:column;align-items:flex-start;}
  .faq-wrap .accordion-button{font-size:15px;padding:18px 40px 18px 0;}
  .faq-wrap .accordion-body{padding:0 34px 20px 14px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:519.98px){
  .brand-text{font-size:17px;}
  .hero-tags{gap:8px;}
  .tag-chip{font-size:12px;padding:6px 12px;}
  .btn-glow,.btn-ghost{height:42px;padding:0 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0E1E;
  --bg-2:#111731;
  --glass:rgba(255,255,255,0.045);
  --glass-2:rgba(255,255,255,0.07);
  --stroke:rgba(124,140,255,0.16);
  --stroke-soft:rgba(255,255,255,0.08);
  --primary:#5B4BFF;
  --primary-2:#8A7BFF;
  --accent:#26E6C8;
  --hot:#FF4D8D;
  --text-1:#E9EDFF;
  --text-2:#A7B0D0;
  --text-3:#6E7899;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.35);
  --sh-2:0 14px 40px rgba(0,0,0,.5);
  --glow:0 0 24px rgba(38,230,200,.25);
  --mono:"SF Mono","JetBrains Mono",Consolas,"Liberation Mono",monospace;
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-border-color:var(--stroke);
  --bs-link-color:var(--text-2);
  --bs-link-hover-color:var(--accent);
  --bs-primary:var(--primary);
  --bs-border-radius:var(--r-md);
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 620px at 8% -6%, rgba(91,75,255,.20), transparent 62%),
    radial-gradient(760px 560px at 96% 108%, rgba(38,230,200,.14), transparent 60%),
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,.35), transparent 60%),
    radial-gradient(1.6px 1.6px at 68% 18%, rgba(255,255,255,.28), transparent 60%),
    radial-gradient(1.4px 1.4px at 42% 72%, rgba(255,255,255,.22), transparent 60%),
    radial-gradient(1.8px 1.8px at 84% 62%, rgba(255,255,255,.24), transparent 60%);
  opacity:.9;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{color:var(--text-1);font-weight:800;margin:0;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:0 0 0 4px rgba(38,230,200,.18);border-radius:6px;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;position:relative;z-index:1;}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (min-width:1600px){.container{max-width:1440px;}}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,7,15,.78);
  transition:background .24s ease-out,border-color .24s ease-out,backdrop-filter .24s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(5,7,15,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--stroke-soft);
}
.nav-top{
  display:flex;align-items:center;gap:20px;
  padding:14px 0 12px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--primary),#3B2EDB);
  box-shadow:0 8px 22px rgba(91,75,255,.4),inset 0 0 0 1px rgba(255,255,255,.14);
}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.4px;color:var(--text-1);}
.brand-name:hover{color:var(--text-1);}
.nav-search{
  flex:1 1 auto;max-width:560px;min-width:240px;position:relative;display:flex;align-items:center;
  height:48px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:0 10px 0 18px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search i{color:var(--text-3);font-size:15px;margin-right:10px;}
.nav-search input{
  flex:1;background:transparent;border:0;outline:none;height:100%;
  color:var(--text-1);font-size:14.5px;
}
.nav-search input::placeholder{color:#7E8AB0;}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px rgba(38,230,200,.14);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;margin-left:auto;}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:0;cursor:pointer;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--primary),#4636E0);
  box-shadow:0 8px 24px rgba(91,75,255,.35),inset 0 0 0 1px rgba(255,255,255,.08);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
  white-space:nowrap;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 14px 34px rgba(91,75,255,.48),inset 0 0 0 1px rgba(255,255,255,.1);color:#fff;}
.btn-glow:active{transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-pill);
  border:1px solid var(--stroke);background:transparent;
  color:var(--text-1);font-size:15px;font-weight:600;cursor:pointer;
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
  white-space:nowrap;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.menu-toggle{
  display:none;width:46px;height:46px;border-radius:14px;margin-left:auto;
  border:1px solid var(--stroke);background:var(--glass);color:var(--text-1);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-pills{
  display:flex;gap:10px;flex-wrap:nowrap;overflow-x:auto;
  padding:6px 0 12px;
  scrollbar-width:none;
}
.nav-pills::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:500;color:var(--text-2);
  border:1px solid var(--stroke-soft);background:rgba(255,255,255,.02);
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.pill i{font-size:12px;color:var(--text-3);transition:color .2s ease-out;}
.pill:hover{color:var(--accent);border-color:rgba(38,230,200,.4);background:rgba(38,230,200,.06);}
.pill:hover i{color:var(--accent);}
.pill.active{
  color:#fff;border-color:rgba(138,123,255,.55);
  background:linear-gradient(135deg,rgba(91,75,255,.32),rgba(38,230,200,.14));
  box-shadow:0 6px 18px rgba(91,75,255,.24);
}
.pill.active i{color:#fff;}
.mobile-search{display:none;}
.drawer{display:none;}

/* ============ 页面主体通用 ============ */
main{position:relative;z-index:1;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:38px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:1.6px;font-weight:600;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(23px,2.8vw,36px);line-height:1.25;}
.section-head .lead{color:var(--text-2);font-size:15.5px;max-width:640px;margin-top:12px;}
.section-head.row-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid transparent;
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}

/* ============ 分类头部 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  border-bottom:1px solid var(--stroke-soft);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(5,7,15,.94) 8%,rgba(5,7,15,.72) 60%,rgba(10,14,30,.88) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:rgba(255,255,255,.2);}
.crumbs .current{color:var(--text-2);}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.15;letter-spacing:.5px;margin-bottom:18px;
}
.page-hero h1 .hl{
  background:linear-gradient(120deg,var(--accent),var(--primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero .intro{max-width:820px;color:var(--text-2);font-size:15.5px;line-height:1.85;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:500;color:var(--text-2);
  background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.tag:hover{color:var(--accent);border-color:rgba(38,230,200,.45);}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--hot);box-shadow:0 0 10px rgba(255,77,141,.7);}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:34px;
  border-top:1px solid var(--stroke-soft);padding-top:22px;
}
.hero-stats .stat{padding-right:34px;margin-right:34px;border-right:1px solid var(--stroke-soft);}
.hero-stats .stat:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-stats .num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--accent);line-height:1.2;}
.hero-stats .num small{font-size:13px;color:var(--text-2);margin-left:4px;font-weight:500;}
.hero-stats .cap{font-size:12.5px;color:var(--text-3);margin-top:4px;}

/* ============ 主体双栏：筛选 + 列表 ============ */
.layout-row{padding-top:64px;}
.filter-panel{
  position:sticky;top:132px;
  border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:24px;
  box-shadow:var(--sh-1);
}
.filter-panel h2{
  font-size:15px;font-weight:700;letter-spacing:.5px;margin-bottom:18px;
  display:flex;align-items:center;gap:8px;
}
.filter-panel h2 i{color:var(--accent);font-size:13px;}
.filter-list{display:flex;flex-direction:column;gap:8px;margin-bottom:26px;}
.filter-btn{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  width:100%;text-align:left;cursor:pointer;
  padding:11px 14px;border-radius:var(--r-md);
  font-size:14px;font-weight:500;color:var(--text-2);
  background:rgba(255,255,255,.02);border:1px solid transparent;
  transition:color .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.filter-btn .count{font-family:var(--mono);font-size:12.5px;color:var(--text-3);}
.filter-btn:hover{color:var(--accent);background:rgba(38,230,200,.06);}
.filter-btn.active{
  color:#fff;border-color:rgba(138,123,255,.5);
  background:linear-gradient(135deg,rgba(91,75,255,.3),rgba(38,230,200,.1));
}
.filter-btn.active .count{color:#fff;}
.filter-note{
  margin-top:22px;padding-top:20px;border-top:1px solid var(--stroke-soft);
  font-size:13px;color:var(--text-3);line-height:1.7;
}
.filter-panel .btn-glow{width:100%;margin-top:18px;height:44px;font-size:14px;}

.list-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-bottom:16px;margin-bottom:6px;border-bottom:1px solid var(--stroke-soft);
}
.list-head h2{font-size:19px;font-weight:700;}
.list-head .meta{font-size:13px;color:var(--text-3);font-family:var(--mono);}
.entry-list{display:flex;flex-direction:column;}
.entry{
  display:flex;gap:22px;align-items:flex-start;
  padding:24px 0;border-bottom:1px solid var(--stroke-soft);
  transition:transform .2s ease-out;
}
.entry:hover{transform:translateX(4px);}
.entry .thumb{
  flex:0 0 220px;max-width:220px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--stroke);background:var(--bg-2);
}
.entry .thumb img{width:100%;height:136px;object-fit:cover;transition:transform .35s ease-out;}
.entry:hover .thumb img{transform:scale(1.03);}
.entry .body{flex:1 1 auto;min-width:0;}
.entry .badges{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;color:var(--accent);
  background:rgba(38,230,200,.1);border:1px solid rgba(38,230,200,.28);
}
.badge-soft.purple{color:var(--primary-2);background:rgba(91,75,255,.14);border-color:rgba(138,123,255,.32);}
.badge-soft.hot{color:var(--hot);background:rgba(255,77,141,.12);border-color:rgba(255,77,141,.3);}
.entry h3{font-size:18px;line-height:1.4;margin-bottom:8px;}
.entry h3 a{color:var(--text-1);}
.entry h3 a:hover{color:var(--accent);}
.entry .desc{
  color:var(--text-2);font-size:14.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry .meta-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  margin-top:14px;font-size:12.5px;color:var(--text-3);font-family:var(--mono);
}
.entry .meta-row .go{font-family:inherit;color:var(--text-2);font-weight:600;font-size:13px;}
.entry .meta-row .go:hover{color:var(--accent);}
.empty-state{
  display:none;min-height:360px;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;gap:14px;border:1px dashed var(--stroke);border-radius:var(--r-lg);
  background:var(--glass);color:var(--text-2);padding:40px 20px;
}
.empty-state i{font-size:30px;color:var(--text-3);}
.empty-state p{font-size:14.5px;}

/* ============ 学习路径（步骤条） ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;margin-top:12px;}
.steps::before{
  content:"";position:absolute;top:27px;left:6%;right:6%;height:1px;
  background:repeating-linear-gradient(90deg,rgba(124,140,255,.4) 0 8px,transparent 8px 16px);
  z-index:0;
}
.step{
  position:relative;z-index:1;padding:26px 24px;
  border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.step:hover{border-color:rgba(38,230,200,.42);transform:translateY(-3px);}
.step .num{
  width:54px;height:54px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:17px;font-weight:700;color:var(--accent);
  border:1px solid rgba(38,230,200,.35);background:rgba(38,230,200,.08);
  margin-bottom:18px;
}
.step h3{font-size:18px;margin-bottom:10px;}
.step p{color:var(--text-2);font-size:14.5px;line-height:1.75;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--stroke-soft);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 8px 20px 18px;font-size:16.5px;font-weight:600;color:var(--text-1);
  transition:color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:3px;
  background:var(--accent);opacity:0;box-shadow:0 0 12px rgba(38,230,200,.7);
  transition:opacity .2s ease-out;
}
.faq-item summary i{color:var(--text-3);font-size:14px;transition:transform .24s ease-out,color .2s ease-out;flex:0 0 auto;}
.faq-item summary:hover{color:var(--accent);}
.faq-item[open] summary{color:var(--accent);}
.faq-item[open] summary::before{opacity:1;}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--accent);}
.faq-body{padding:0 8px 22px 18px;color:var(--text-2);font-size:15px;line-height:1.8;}

/* ============ CTA 条 ============ */
.cta-band{
  border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:40px 42px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 220px at 12% 10%,rgba(91,75,255,.24),transparent 65%),
             radial-gradient(420px 200px at 92% 100%,rgba(38,230,200,.16),transparent 65%);
  pointer-events:none;
}
.cta-band .txt{position:relative;z-index:1;max-width:640px;}
.cta-band h2{font-size:clamp(21px,2.3vw,30px);line-height:1.3;margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;}
.cta-band .acts{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;padding:64px 0 0;
  background:var(--bg-1);border-top:1px solid var(--stroke-soft);
  position:relative;z-index:1;
}
.site-footer .row{padding-bottom:44px;}
.footer-col{margin-bottom:28px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px;}
.footer-brand .brand-text{font-size:16px;font-weight:800;color:var(--text-1);}
.footer-about{color:var(--text-2);font-size:14px;line-height:1.75;margin-bottom:10px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.4px;}
.footer-link{display:block;color:var(--text-2);font-size:14px;line-height:1.6;padding:5px 0;border-bottom:1px solid transparent;}
.footer-link:hover{color:var(--accent);border-bottom-color:rgba(38,230,200,.5);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--stroke-soft);padding:20px 0 26px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom span{font-family:var(--mono);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .entry .thumb{flex-basis:190px;max-width:190px;}
  .entry .thumb img{height:120px;}
}
@media (max-width:991.98px){
  .nav-top{flex-wrap:wrap;gap:12px;}
  .nav-search{order:3;flex-basis:100%;max-width:100%;min-width:0;}
  .nav-actions{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-pills{display:none;}
  .mobile-search{display:none;}
  .drawer{
    display:none;flex-direction:column;gap:12px;
    padding:18px;margin-bottom:14px;border-radius:var(--r-lg);
    background:var(--glass);border:1px solid var(--stroke);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  }
  .drawer.open{display:flex;}
  .drawer .pill{width:100%;justify-content:flex-start;padding:12px 16px;font-size:14px;}
  .drawer .btn-glow{width:100%;}
  .filter-panel{position:static;margin-bottom:28px;}
  .filter-list{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .filter-btn{width:auto;padding:9px 14px;}
  .filter-btn .count{display:none;}
  .steps{grid-template-columns:1fr;}
  .steps::before{display:none;}
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .layout-row{padding-top:48px;}
  .page-hero{padding:48px 0 42px;}
  .cta-band{padding:32px 26px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:767.98px){
  .entry{flex-direction:column;gap:16px;padding:20px 0;}
  .entry .thumb{flex-basis:auto;max-width:100%;width:100%;}
  .entry .thumb img{height:190px;}
  .entry:hover{transform:none;}
  .hero-stats{gap:18px 0;}
  .hero-stats .stat{padding-right:20px;margin-right:20px;}
  .hero-stats .num{font-size:22px;}
  .section{padding:52px 0;}
  .cta-band .acts{width:100%;}
  .cta-band .acts .btn-glow,.cta-band .acts .btn-ghost{flex:1 1 auto;}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px;}
  .brand-name{font-size:15px;}
  .hero-stats .stat{width:50%;border-right:0;margin-right:0;padding-right:0;margin-bottom:14px;}
  .entry h3{font-size:16.5px;}
  .btn-glow,.btn-ghost{height:44px;font-size:14px;padding:0 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}