/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#060C18;
  --ink-800:#0A1424;
  --ink-700:#101E33;
  --glass:rgba(22,44,70,.55);
  --glass-2:rgba(16,32,54,.78);
  --line:rgba(120,200,255,.18);
  --line-2:rgba(120,200,255,.10);
  --mint:#2FE3B0;
  --azure:#5FA8FF;
  --amber:#FFB84D;
  --text:#E8F1FB;
  --muted:#9FB3C8;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.35);
  --mono:ui-monospace,SFMono-Regular,"Roboto Mono",Menlo,Consolas,monospace;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 12% -8%, rgba(47,227,176,.09), transparent 62%),
    radial-gradient(900px 520px at 88% 2%, rgba(95,168,255,.10), transparent 58%),
    var(--ink-900);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--mint);text-decoration:none;transition:color .2s ease;}
a:hover{color:#87f5d8;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;}
::selection{background:rgba(47,227,176,.32);color:#fff;}

/* ============ 布局容器 ============ */
.wrap{max-width:1160px;margin:0 auto;padding:0 .9375rem;}
.row{max-width:none;margin-left:-.9375rem;margin-right:-.9375rem;}
.row .row{margin-left:0;margin-right:0;}
.section{position:relative;padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{
  background:linear-gradient(180deg,rgba(10,20,36,.92) 0%,rgba(6,12,24,.98) 100%);
  border-top:1px solid var(--line-2);
  border-bottom:1px solid var(--line-2);
}
.section--mesh{overflow:hidden;}
.section--mesh::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 70%);
}
.section > .wrap{position:relative;z-index:1;}

/* ============ 通用标题 ============ */
.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mint);
  padding:6px 14px;
  border:1px solid rgba(47,227,176,.32);
  border-radius:999px;
  background:rgba(47,227,176,.07);
}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{
  font-size:clamp(22px,2.4vw,32px);
  margin:14px 0 14px;
  font-weight:750;
  letter-spacing:-.01em;
}
.sec-head p{color:var(--muted);font-size:15.5px;line-height:1.85;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  min-height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2FE3B0 0%,#1FB48C 100%);
  color:#04212A;
  box-shadow:0 0 0 1px rgba(47,227,176,.5),0 10px 30px rgba(47,227,176,.28);
}
.btn-primary:hover{
  color:#04212A;
  transform:translateY(-1px);
  background:linear-gradient(135deg,#5CF2C8 0%,#25C99B 100%);
  box-shadow:0 0 0 1px rgba(47,227,176,.72),0 16px 40px rgba(47,227,176,.42);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.045);
  color:var(--text);
  border:1px solid var(--line);
}
.btn-ghost:hover{
  color:#fff;
  background:rgba(47,227,176,.10);
  border-color:rgba(47,227,176,.55);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}

/* ============ 卡片 / 标签 ============ */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,176,.55);
  box-shadow:0 0 0 1px rgba(47,227,176,.22),0 26px 52px rgba(0,0,0,.46);
}
.tag{
  display:inline-block;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--azure);
  border:1px solid rgba(95,168,255,.32);
  background:rgba(95,168,255,.09);
  border-radius:999px;
  padding:3px 11px;
}
.tag--mint{color:var(--mint);border-color:rgba(47,227,176,.34);background:rgba(47,227,176,.09);}
.tag--amber{color:var(--amber);border-color:rgba(255,184,77,.34);background:rgba(255,184,77,.10);}
.rule{height:1px;background:linear-gradient(90deg,rgba(47,227,176,.7),rgba(120,200,255,.08));margin:18px 0 0;border-radius:2px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(100deg,#0B1B33 0%,#123A5E 52%,#0E2A44 100%);
  border-bottom:1px solid rgba(120,200,255,.24);
  box-shadow:0 10px 30px rgba(0,0,0,.38);
}
.nav-inner{
  max-width:1160px;
  margin:0 auto;
  padding:0 20px;
  min-height:72px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;color:#fff;}
.brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 12px var(--mint),0 0 24px rgba(47,227,176,.5);
  flex-shrink:0;
}
.brand-name{font-size:17px;font-weight:750;letter-spacing:.02em;color:#fff;white-space:nowrap;}
.brand-sub{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  color:rgba(232,241,251,.62);
  padding-left:12px;
  border-left:1px solid rgba(255,255,255,.2);
  white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.site-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 15px;
  border-radius:10px;
  font-size:15px;
  color:rgba(232,241,251,.84);
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.site-nav a::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:7px;
  height:2px;border-radius:2px;
  background:var(--mint);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.site-nav a:hover{background:rgba(255,255,255,.12);color:#fff;}
.site-nav a:hover::after,
.site-nav a.active::after{transform:scaleX(1);}
.site-nav a.active{background:rgba(255,255,255,.13);color:#fff;}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:650;
  color:#04212A;
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);
  box-shadow:0 0 0 1px rgba(47,227,176,.45),0 8px 22px rgba(47,227,176,.25);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
  flex-shrink:0;
}
.nav-cta:hover{
  color:#04212A;
  transform:translateY(-1px);
  background:linear-gradient(135deg,#5CF2C8,#25C99B);
  box-shadow:0 0 0 1px rgba(47,227,176,.7),0 12px 30px rgba(47,227,176,.4);
}
.nav-cta:active{transform:translateY(1px);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  margin-left:auto;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);
  color:#fff;
  font-size:18px;
  cursor:pointer;
  transition:background .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.18);}
.nav-mobile-cta{display:none;}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:74px 0 76px;
  background:linear-gradient(180deg,#081120 0%,#0A1626 58%,#060C18 100%);
  border-bottom:1px solid var(--line-2);
}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/95769a866313e7cf.webp') center/cover no-repeat;
  opacity:.18;
  filter:saturate(120%);
  pointer-events:none;
}
.hero-mesh{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse at 26% 12%, #000 8%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 26% 12%, #000 8%, transparent 70%);
}
.hero-glow{
  position:absolute;
  width:520px;height:520px;
  right:-140px;top:-180px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,227,176,.20),transparent 68%);
  filter:blur(20px);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:2;}
.hero-title{
  font-size:clamp(28px,3.9vw,44px);
  line-height:1.26;
  font-weight:800;
  letter-spacing:-.012em;
  margin:20px 0 20px;
  color:#F3F9FF;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,#2FE3B0,#5FA8FF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  max-width:640px;
  color:var(--muted);
  font-size:16.5px;
  line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 0;}
.trust-bar{
  display:flex;
  flex-wrap:wrap;
  gap:34px;
  margin:34px 0 0;
  padding:20px 0 0;
  border-top:1px solid var(--line-2);
}
.trust-bar li{display:flex;flex-direction:column;gap:2px;}
.trust-bar b{
  font-family:var(--mono);
  font-size:22px;
  font-weight:700;
  color:var(--mint);
  letter-spacing:.02em;
}
.trust-bar span{font-size:12px;letter-spacing:.1em;color:var(--muted);}

.hero-feature{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:visible;
  margin-top:8px;
}
.hero-feature-inner{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 28px 60px rgba(0,0,0,.5);
  background:var(--glass-2);
  backdrop-filter:blur(14px) saturate(130%);
}
.hero-feature-inner img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
}
.feature-overlay{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:24px 22px 22px;
  background:linear-gradient(180deg,transparent 0%,rgba(6,12,24,.72) 42%,rgba(6,12,24,.96) 100%);
}
.feature-overlay h3{font-size:18px;margin:10px 0 8px;color:#fff;}
.feature-overlay p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0;}
.float-chip{
  position:absolute;
  display:flex;
  align-items:center;
  gap:9px;
  padding:10px 15px;
  border-radius:12px;
  background:rgba(9,20,34,.9);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
  box-shadow:0 12px 28px rgba(0,0,0,.45);
  font-size:12.5px;
  color:var(--muted);
  z-index:3;
}
.float-chip b{font-family:var(--mono);font-size:15px;color:var(--mint);}
.float-chip.chip-a{top:20px;left:-16px;}
.float-chip.chip-b{bottom:110px;right:-16px;}

/* ============ 数据指标条 ============ */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.metric{
  background:rgba(10,20,36,.86);
  padding:30px 26px;
  transition:background .25s ease;
}
.metric:hover{background:rgba(22,44,70,.7);}
.metric b{
  display:block;
  font-family:var(--mono);
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  color:var(--mint);
  letter-spacing:.01em;
  line-height:1.2;
}
.metric span{
  display:block;
  margin-top:8px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--muted);
}

/* ============ 功能分组 ============ */
.feature-card{height:100%;display:flex;flex-direction:column;padding:0;overflow:hidden;}
.feature-media{overflow:hidden;}
.feature-media img{width:100%;height:230px;object-fit:cover;transition:transform .5s ease;}
.feature-card:hover .feature-media img{transform:scale(1.04);}
.feature-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.feature-body h3{font-size:19px;margin:12px 0 10px;}
.feature-body p{color:var(--muted);font-size:14.5px;line-height:1.8;}
.feature-ico{
  width:46px;height:46px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:13px;
  background:rgba(47,227,176,.1);
  border:1px solid rgba(47,227,176,.28);
  color:var(--mint);
  font-size:18px;
  margin-bottom:14px;
}
.feature-card--plain{padding:26px;}

/* ============ 使用场景 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:16px;
}
.scene{
  position:relative;
  padding:24px 20px 26px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(22,44,70,.5),rgba(10,20,36,.72));
  transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
  overflow:hidden;
}
.scene::after{
  content:"";
  position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--mint),transparent);
  opacity:0;
  transition:opacity .28s ease;
}
.scene:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,176,.6);
  box-shadow:0 0 0 1px rgba(47,227,176,.22),0 20px 44px rgba(0,0,0,.45);
}
.scene:hover::after{opacity:1;}
.scene i{font-size:20px;color:var(--azure);margin-bottom:14px;display:block;}
.scene h3{font-size:16px;margin-bottom:8px;color:#F1F8FF;}
.scene p{font-size:13.5px;color:var(--muted);line-height:1.72;margin:0;}

/* ============ 演示区 ============ */
.demo-stage{
  position:relative;
  min-height:420px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:0;
}
.phone{
  border-radius:26px;
  overflow:hidden;
  border:1px solid rgba(120,200,255,.28);
  box-shadow:0 24px 54px rgba(0,0,0,.55);
  background:#0A1424;
  transition:transform .35s ease;
}
.phone img{width:100%;height:100%;object-fit:cover;}
.phone-1{width:46%;aspect-ratio:9/16;transform:translateX(26px) rotate(-6deg);z-index:1;}
.phone-2{width:52%;aspect-ratio:9/16;z-index:3;transform:translateY(-14px);}
.phone-3{width:46%;aspect-ratio:9/16;transform:translateX(-26px) rotate(6deg);z-index:2;}
.demo-stage:hover .phone-1{transform:translateX(10px) rotate(-8deg);}
.demo-stage:hover .phone-3{transform:translateX(-10px) rotate(8deg);}
.demo-list{display:flex;flex-direction:column;gap:24px;}
.demo-item{display:flex;gap:18px;align-items:flex-start;}
.demo-num{
  font-family:var(--mono);
  font-size:14px;
  font-weight:700;
  color:var(--mint);
  border:1px solid rgba(47,227,176,.4);
  background:rgba(47,227,176,.08);
  border-radius:10px;
  padding:5px 11px;
  flex-shrink:0;
  letter-spacing:.06em;
}
.demo-item h3{font-size:16.5px;margin-bottom:7px;}
.demo-item p{font-size:14px;color:var(--muted);line-height:1.78;margin:0;}
.demo-progress{
  height:5px;
  border-radius:99px;
  background:rgba(120,200,255,.12);
  overflow:hidden;
  margin-top:8px;
}
.demo-progress i{
  display:block;height:100%;width:72%;
  border-radius:99px;
  background:linear-gradient(90deg,var(--mint),var(--azure));
}

/* ============ 城市专题横滑 ============ */
.city-scroll{
  display:flex;
  gap:18px;
  overflow-x:auto;
  padding:4px 4px 20px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.city-scroll::-webkit-scrollbar{height:6px;}
.city-scroll::-webkit-scrollbar-track{background:rgba(120,200,255,.08);border-radius:99px;}
.city-scroll::-webkit-scrollbar-thumb{background:rgba(47,227,176,.4);border-radius:99px;}
.city-card{
  flex:0 0 272px;
  scroll-snap-align:start;
  padding:24px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(130%);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.city-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,176,.55);
  box-shadow:0 0 0 1px rgba(47,227,176,.2),0 22px 46px rgba(0,0,0,.44);
}
.city-card h3{font-size:17px;margin-bottom:6px;display:flex;align-items:center;justify-content:space-between;gap:8px;}
.city-card h3 em{font-style:normal;font-family:var(--mono);font-size:11.5px;color:var(--mint);letter-spacing:.08em;}
.city-card p{font-size:13.5px;color:var(--muted);line-height:1.75;margin:0 0 16px;}
.city-tags{display:flex;flex-wrap:wrap;gap:7px;}

/* ============ 成功案例 ============ */
.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
.story{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .28s ease,border-color .28s ease;
}
.story:hover{transform:translateY(-5px);border-color:rgba(47,227,176,.5);}
.story:nth-child(2){margin-top:34px;}
.story:nth-child(3){margin-top:14px;}
.story img{width:100%;height:172px;object-fit:cover;}
.story-body{padding:22px;}
.story-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.avatar{
  width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,rgba(47,227,176,.35),rgba(95,168,255,.35));
  border:1px solid rgba(120,200,255,.35);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#fff;
  flex-shrink:0;
}
.story-top span{font-size:13px;color:var(--muted);}
.story-body h3{font-size:16.5px;margin-bottom:10px;}
.story-body p{font-size:14px;color:var(--muted);line-height:1.78;margin:0 0 14px;}
.story-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--mono);font-size:11.5px;color:rgba(159,179,200,.75);letter-spacing:.06em;
  border-top:1px solid var(--line-2);padding-top:12px;
}

/* ============ 安全与隐私 ============ */
.guard-list{display:flex;flex-direction:column;gap:16px;}
.guard-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;
  border-radius:14px;
  border:1px solid var(--line-2);
  background:rgba(22,44,70,.34);
  transition:border-color .25s ease,background .25s ease;
}
.guard-item:hover{border-color:rgba(47,227,176,.42);background:rgba(22,44,70,.54);}
.guard-check{
  width:26px;height:26px;flex-shrink:0;
  border-radius:8px;
  border:1px solid rgba(47,227,176,.5);
  background:rgba(47,227,176,.12);
  color:var(--mint);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;
  margin-top:2px;
}
.guard-item h3{font-size:15.5px;margin-bottom:6px;}
.guard-item p{font-size:13.5px;color:var(--muted);line-height:1.75;margin:0;}
.guard-panel{
  border-radius:var(--radius-lg);
  border:1px solid rgba(47,227,176,.32);
  background:linear-gradient(160deg,rgba(22,44,70,.85),rgba(10,20,36,.9));
  padding:32px 28px;
  box-shadow:0 0 0 1px rgba(47,227,176,.1),0 24px 54px rgba(0,0,0,.45);
  height:100%;
}
.guard-panel h3{font-size:19px;margin-bottom:14px;}
.guard-panel p{font-size:14.5px;color:var(--muted);line-height:1.85;margin-bottom:16px;}
.guard-note{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(159,179,200,.8);
  border-left:2px solid rgba(47,227,176,.6);
  padding-left:12px;
  margin-bottom:22px;
}

/* ============ 套餐价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
.price-card{
  position:relative;
  padding:32px 26px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.price-card:hover{transform:translateY(-4px);border-color:rgba(120,200,255,.4);}
.price-card--hot{
  border-color:rgba(47,227,176,.62);
  background:linear-gradient(170deg,rgba(24,52,80,.85),rgba(10,22,38,.92));
  box-shadow:0 0 0 1px rgba(47,227,176,.32),0 26px 58px rgba(0,0,0,.5);
  transform:translateY(-10px);
}
.price-card--hot:hover{transform:translateY(-14px);}
.hot-badge{
  position:absolute;top:-12px;right:22px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;
  color:#04212A;
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);
  border-radius:999px;
  padding:5px 14px;
  box-shadow:0 8px 20px rgba(47,227,176,.35);
}
.price-card h3{font-size:17px;margin-bottom:6px;}
.price-card .price-desc{font-size:13.5px;color:var(--muted);margin-bottom:20px;line-height:1.7;}
.price-num{
  font-family:var(--mono);
  font-size:42px;
  font-weight:700;
  color:var(--mint);
  line-height:1.1;
  letter-spacing:-.02em;
}
.price-num small{font-size:14px;font-weight:500;color:var(--muted);letter-spacing:.04em;margin-left:4px;}
.price-list{margin:22px 0 26px;display:flex;flex-direction:column;gap:11px;}
.price-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13.8px;color:var(--muted);line-height:1.7;
}
.price-list li i{color:var(--mint);font-size:12px;margin-top:5px;}
.price-card .btn{width:100%;}

/* ============ 评价墙 ============ */
.review-wall{column-count:2;column-gap:20px;}
.review{
  break-inside:avoid;
  margin-bottom:20px;
  padding:24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(130%);
  position:relative;
  overflow:hidden;
  transition:transform .28s ease,border-color .28s ease;
}
.review::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,rgba(47,227,176,.9),rgba(95,168,255,.2));
}
.review:hover{transform:translateY(-3px);border-color:rgba(47,227,176,.45);}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.review-head strong{display:block;font-size:14.5px;color:#F1F8FF;}
.review-head em{
  font-style:normal;
  font-family:var(--mono);
  font-size:11.5px;
  color:rgba(159,179,200,.8);
  letter-spacing:.08em;
}
.stars{color:var(--amber);font-size:12px;letter-spacing:.14em;margin-bottom:10px;}
.review p{font-size:14.2px;color:var(--muted);line-height:1.85;margin:0 0 14px;}

/* ============ 口碑横幅 ============ */
.buzz{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(18,58,94,.75),rgba(10,20,36,.92));
  padding:44px 40px 36px;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.buzz::after{
  content:"";
  position:absolute;right:-80px;top:-80px;width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,227,176,.18),transparent 70%);
  pointer-events:none;
}
.buzz h2{font-size:clamp(20px,2.2vw,28px);margin:14px 0 14px;max-width:560px;}
.buzz > p{color:var(--muted);font-size:15px;line-height:1.85;max-width:600px;}
.buzz-nums{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:12px;}
.buzz-num{
  padding:18px 16px;
  border-radius:14px;
  border:1px solid var(--line-2);
  background:rgba(6,12,24,.4);
}
.buzz-num b{
  display:block;
  font-family:var(--mono);
  font-size:24px;
  color:var(--mint);
  line-height:1.2;
}
.buzz-num span{display:block;margin-top:6px;font-size:12px;letter-spacing:.12em;color:var(--muted);}
.buzz-bar{height:5px;border-radius:99px;background:rgba(120,200,255,.12);margin-top:26px;overflow:hidden;}
.buzz-bar i{display:block;height:100%;width:64%;background:linear-gradient(90deg,var(--mint),var(--azure));border-radius:99px;}

/* ============ 资讯列表 ============ */
.news-card{
  height:100%;
  display:flex;
  flex-direction:column;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(130%);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,176,.55);
  box-shadow:0 0 0 1px rgba(47,227,176,.2),0 24px 50px rgba(0,0,0,.45);
}
.news-thumb{display:block;overflow:hidden;}
.news-thumb img{width:100%;height:172px;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:16.5px;line-height:1.55;margin:12px 0 10px;}
.news-body h3 a{color:#F1F8FF;}
.news-body h3 a:hover{color:var(--mint);}
.news-body p{font-size:13.8px;color:var(--muted);line-height:1.78;margin:0 0 16px;}
.news-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line-2);
  padding-top:14px;
  font-family:var(--mono);font-size:11.5px;color:rgba(159,179,200,.78);letter-spacing:.06em;
}
.news-more{color:var(--mint);font-size:12.5px;}
.news-more:hover{color:#87f5d8;}
.empty-state{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius-lg);
  background:rgba(10,20,36,.6);
}
.empty-state i{font-size:26px;color:rgba(47,227,176,.65);display:block;margin-bottom:14px;}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:18px;}

/* ============ FAQ ============ */
.accordion{
  border:none;
  background:transparent;
  margin:0;
}
.accordion-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(130%);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.accordion-item:hover{border-color:rgba(47,227,176,.42);}
.accordion-item.is-active{border-color:rgba(47,227,176,.55);background:rgba(24,48,78,.68);}
.accordion-title{
  position:relative;
  display:block;
  border:none;
  background:transparent;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  padding:20px 58px 20px 22px;
  transition:background .22s ease,color .22s ease;
}
.accordion-title::before{
  content:"";
  position:absolute;
  right:24px;
  top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--mint);
  border-bottom:2px solid var(--mint);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .28s ease;
}
.accordion-title[aria-expanded="true"]::before{
  transform:translateY(-30%) rotate(-135deg);
}
.accordion-title:hover{background:rgba(47,227,176,.08);color:#fff;}
.accordion-content{
  border:none;
  background:transparent;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.85;
  padding:0 22px 22px;
}
.accordion-content p{margin:0;}

/* ============ 收口 CTA ============ */
.cta-band{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  padding:52px 46px;
  background:linear-gradient(115deg,#0B1B33 0%,#123A5E 48%,#0E2A44 100%);
  border:1px solid rgba(47,227,176,.32);
  box-shadow:0 0 0 1px rgba(47,227,176,.12),0 30px 66px rgba(0,0,0,.5);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 80% 0%, #000 5%, transparent 68%);
  -webkit-mask-image:radial-gradient(ellipse at 80% 0%, #000 5%, transparent 68%);
  pointer-events:none;
}
.cta-band .row{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);margin:16px 0 16px;color:#fff;}
.cta-band p{color:rgba(232,241,251,.78);font-size:15px;line-height:1.85;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-visual{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid rgba(120,200,255,.3);
  box-shadow:0 22px 50px rgba(0,0,0,.5);
}
.cta-visual img{width:100%;height:100%;object-fit:cover;}
.cta-foot{
  margin-top:30px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;
  color:rgba(232,241,251,.6);
  line-height:1.8;
}

/* ============ 页脚 ============ */
.site-footer{
  background:#04080F;
  border-top:1px solid rgba(120,200,255,.2);
  padding:66px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,176,.8),rgba(95,168,255,.5),transparent);
}
.footer-grid{padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:17px;color:#fff;letter-spacing:.02em;}
.footer-brand .brand-dot{width:9px;height:9px;}
.footer-desc{font-size:13.5px;color:var(--muted);line-height:1.8;max-width:260px;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row a{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  border:1px solid var(--line-2);
  background:rgba(255,255,255,.03);
  color:rgba(232,241,251,.72);
  font-size:15px;
  transition:all .22s ease;
}
.social-row a:hover{
  color:#04212A;
  background:var(--mint);
  border-color:var(--mint);
  transform:translateY(-2px);
}
.site-footer h4{
  font-size:13px;
  letter-spacing:.16em;
  color:rgba(232,241,251,.62);
  margin-bottom:18px;
  font-family:var(--mono);
  font-weight:600;
}
.footer-links li{margin-bottom:11px;}
.footer-links a{
  font-size:14px;
  color:rgba(232,241,251,.78);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:var(--mint);padding-left:4px;}
.footer-contact li{
  font-size:13.8px;
  color:var(--muted);
  line-height:1.8;
  margin-bottom:10px;
  display:flex;
  gap:9px;
  align-items:flex-start;
}
.footer-contact i{color:var(--mint);font-size:12px;margin-top:6px;}
.footer-bottom{
  border-top:1px solid rgba(120,200,255,.12);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  align-items:center;
  font-size:12.5px;
  color:rgba(159,179,200,.72);
  font-family:var(--mono);
  letter-spacing:.04em;
}
.footer-bottom a{color:rgba(159,179,200,.72);}
.footer-bottom a:hover{color:var(--mint);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:68px 0;}
  .hero{padding:56px 0 62px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(3,1fr);}
  .story-grid{grid-template-columns:repeat(2,1fr);}
  .story:nth-child(3){display:none;}
  .price-grid{grid-template-columns:repeat(2,1fr);}
  .price-card--hot{transform:none;}
  .price-card--hot:hover{transform:translateY(-4px);}
  .hero-feature{margin-top:36px;}
  .float-chip.chip-a{left:0;}
  .float-chip.chip-b{right:0;}
  .buzz{padding:36px 28px 30px;}
  .buzz-nums{grid-template-columns:repeat(3,1fr);}
  .brand-sub{display:none;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-cta{display:none;}
  .site-nav{
    position:fixed;
    top:72px;
    left:0;right:0;
    z-index:79;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:16px 20px 22px;
    background:linear-gradient(180deg,#0B1B33,#0E2A44);
    border-bottom:1px solid var(--line);
    box-shadow:0 22px 44px rgba(0,0,0,.5);
    transform:translateY(-14px);
    opacity:0;
    pointer-events:none;
    transition:transform .26s ease,opacity .26s ease;
    max-height:calc(100vh - 72px);
    overflow-y:auto;
  }
  .site-nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .site-nav a{height:50px;justify-content:flex-start;font-size:15.5px;}
  .site-nav a::after{display:none;}
  .nav-mobile-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:48px;
    margin-top:10px;
    border-radius:999px;
    font-size:15px;
    font-weight:650;
    color:#04212A;
    background:linear-gradient(135deg,#2FE3B0,#1FB48C);
    box-shadow:0 0 0 1px rgba(47,227,176,.45),0 10px 26px rgba(47,227,176,.28);
  }
  .nav-mobile-cta:hover{color:#04212A;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .sec-head{margin-bottom:32px;}
  .hero-title{font-size:clamp(25px,6.4vw,32px);}
  .hero-lead{font-size:15.5px;}
  .trust-bar{gap:22px;}
  .trust-bar b{font-size:19px;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .story-grid{grid-template-columns:1fr;}
  .story:nth-child(2){margin-top:0;}
  .story:nth-child(3){display:block;margin-top:0;}
  .price-grid{grid-template-columns:1fr;}
  .review-wall{column-count:1;}
  .buzz-nums{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .demo-stage{min-height:340px;margin-bottom:34px;}
  .float-chip{font-size:11.5px;padding:8px 12px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .nav-inner{padding:0 16px;min-height:66px;}
  .brand-name{font-size:15.5px;}
  .site-nav{top:66px;}
  .hero{padding:44px 0 52px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .metrics{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .brand-dot{width:8px;height:8px;}
  .card{padding:22px;}
  .feature-body{padding:20px 20px 22px;}
  .price-num{font-size:34px;}
  .buzz{padding:28px 20px 24px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .float-chip{display:none;}
  .news-body{padding:18px 18px 20px;}
  .site-footer{padding-top:52px;}
  .guard-panel{padding:24px 20px;}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#060C18;
  --ink-800:#0A1424;
  --ink-700:#101E33;
  --glass:rgba(22,44,70,.55);
  --glass-2:rgba(16,32,54,.78);
  --line:rgba(120,200,255,.18);
  --line-2:rgba(120,200,255,.10);
  --mint:#2FE3B0;
  --azure:#5FA8FF;
  --amber:#FFB84D;
  --text:#E8F1FB;
  --muted:#9FB3C8;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.35);
  --mono:ui-monospace,SFMono-Regular,"Roboto Mono",Menlo,Consolas,monospace;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 12% -8%, rgba(47,227,176,.09), transparent 62%),
    radial-gradient(900px 520px at 88% 2%, rgba(95,168,255,.10), transparent 58%),
    var(--ink-900);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--mint);text-decoration:none;transition:color .2s ease;}
a:hover{color:#87f5d8;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;color:#fff;}
ul,ol{margin:0;padding:0;list-style:none;}
.row{max-width:none;margin-left:-.9375rem;margin-right:-.9375rem;}
.row .row{margin-left:0;margin-right:0;}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px;}
.button{background:transparent;color:inherit;border:0;border-radius:0;padding:0;margin:0;}
.button:hover,.button:focus{background:transparent;color:inherit;}
/* ============ 板块 ============ */
.section{position:relative;padding:88px 0;}
.section--tight{padding:60px 0;}
.section--alt{
  background:linear-gradient(180deg,rgba(10,20,36,.92) 0%,rgba(6,12,24,.98) 100%);
  border-top:1px solid var(--line-2);
  border-bottom:1px solid var(--line-2);
}
.section--mesh{overflow:hidden;}
.section--mesh::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 72%);
}
.section > .wrap{position:relative;z-index:1;}
/* ============ 通用组件 ============ */
.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mint);
  padding:6px 14px;
  border:1px solid rgba(47,227,176,.32);
  border-radius:999px;
  background:rgba(47,227,176,.07);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  min-height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2FE3B0 0%,#1FB48C 100%);
  color:#04212A;
  box-shadow:0 0 0 1px rgba(47,227,176,.5),0 10px 30px rgba(47,227,176,.28);
}
.btn-primary:hover{
  color:#04212A;
  transform:translateY(-1px);
  background:linear-gradient(135deg,#5CF2C8 0%,#25C99B 100%);
  box-shadow:0 0 0 1px rgba(47,227,176,.72),0 16px 40px rgba(47,227,176,.42);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.045);
  color:var(--text);
  border:1px solid var(--line);
}
.btn-ghost:hover{
  color:#fff;
  background:rgba(47,227,176,.10);
  border-color:rgba(47,227,176,.55);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}
.btn:focus-visible,.nav-cta:focus-visible,.nav-toggle:focus-visible,.site-nav a:focus-visible{
  outline:2px solid var(--mint);
  outline-offset:3px;
}
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,176,.55);
  box-shadow:0 0 0 1px rgba(47,227,176,.22),0 26px 52px rgba(0,0,0,.46);
}
.tag{
  display:inline-block;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--azure);
  border:1px solid rgba(95,168,255,.32);
  background:rgba(95,168,255,.09);
  border-radius:999px;
  padding:3px 11px;
}
.tag--mint{color:var(--mint);border-color:rgba(47,227,176,.34);background:rgba(47,227,176,.09);}
.tag--amber{color:var(--amber);border-color:rgba(255,184,77,.34);background:rgba(255,184,77,.10);}
/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(100deg,#0B1B33 0%,#123A5E 52%,#0E2A44 100%);
  border-bottom:1px solid rgba(120,200,255,.24);
  box-shadow:0 10px 30px rgba(0,0,0,.38);
}
.nav-inner{
  max-width:1160px;
  margin:0 auto;
  padding:0 20px;
  min-height:72px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;color:#fff;}
.brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 12px var(--mint),0 0 24px rgba(47,227,176,.5);
  flex-shrink:0;
}
.brand-name{font-size:17px;font-weight:750;letter-spacing:.02em;color:#fff;white-space:nowrap;}
.brand-sub{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  color:rgba(232,241,251,.62);
  padding-left:12px;
  border-left:1px solid rgba(255,255,255,.2);
  white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.site-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 15px;
  border-radius:10px;
  font-size:15px;
  color:rgba(232,241,251,.84);
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.site-nav a::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:7px;
  height:2px;border-radius:2px;
  background:var(--mint);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.site-nav a:hover{background:rgba(255,255,255,.12);color:#fff;}
.site-nav a:hover::after,
.site-nav a.active::after{transform:scaleX(1);}
.site-nav a.active{background:rgba(255,255,255,.13);color:#fff;}
.nav-mobile-cta{display:none;}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:650;
  color:#04212A;
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);
  box-shadow:0 0 0 1px rgba(47,227,176,.45),0 8px 22px rgba(47,227,176,.25);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-cta:hover{
  color:#04212A;
  transform:translateY(-1px);
  background:linear-gradient(135deg,#5CF2C8,#25C99B);
  box-shadow:0 0 0 1px rgba(47,227,176,.7),0 12px 30px rgba(47,227,176,.4);
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  margin-left:auto;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);
  color:#fff;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(47,227,176,.18);border-color:rgba(47,227,176,.5);}
/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:56px 0 44px;
  border-bottom:1px solid var(--line-2);
  background:
    radial-gradient(760px 320px at 18% 0%, rgba(47,227,176,.12), transparent 65%),
    radial-gradient(680px 300px at 82% 8%, rgba(95,168,255,.13), transparent 62%),
    linear-gradient(180deg,rgba(10,20,36,.7),rgba(6,12,24,.95));
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--muted);
  margin-bottom:24px;
}
.crumb a{color:rgba(232,241,251,.78);}
.crumb a:hover{color:var(--mint);}
.crumb span.sep{color:rgba(159,179,200,.5);}
.crumb .current{color:var(--mint);}
.article-head{max-width:900px;}
.article-head .tag{margin-bottom:18px;}
.article-h1{
  font-size:clamp(28px,3.6vw,46px);
  line-height:1.26;
  letter-spacing:.005em;
  margin-bottom:22px;
}
.article-lead{
  max-width:760px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
  margin-bottom:26px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--muted);
  padding-top:20px;
  border-top:1px solid var(--line-2);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:8px;}
.meta-row i{color:var(--mint);font-size:12px;}
.meta-row .dot{width:5px;height:5px;border-radius:50%;background:rgba(159,179,200,.4);}
/* ============ 正文 ============ */
.article-stage{padding:72px 0 80px;}
.article-shell{
  max-width:820px;
  margin:0 auto;
  background:var(--glass-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:44px 48px 52px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
}
.article-body{
  max-width:760px;
  font-size:16px;
  line-height:1.9;
  color:#DCE8F5;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.2vw,27px);
  line-height:1.4;
  margin:2em 0 .8em;
  padding-left:16px;
  color:#fff;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;bottom:.28em;
  width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--mint),rgba(47,227,176,.25));
  box-shadow:0 0 12px rgba(47,227,176,.5);
}
.article-body h3{
  position:relative;
  font-size:18px;
  margin:1.7em 0 .7em;
  padding-left:14px;
  color:#F4F9FF;
}
.article-body h3::before{
  content:"";
  position:absolute;
  left:0;top:.4em;bottom:.4em;
  width:3px;border-radius:3px;
  background:rgba(95,168,255,.75);
}
.article-body ul,
.article-body ol{
  margin:0 0 1.2em;
  padding-left:0;
}
.article-body ul li{
  position:relative;
  padding-left:22px;
  margin-bottom:.55em;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--mint);
  box-shadow:0 0 8px rgba(47,227,176,.5);
}
.article-body ol{counter-reset:artnum;}
.article-body ol li{
  position:relative;
  padding-left:30px;
  margin-bottom:.6em;
  counter-increment:artnum;
}
.article-body ol li::before{
  content:counter(artnum,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  font-family:var(--mono);
  font-size:12px;
  color:var(--mint);
  letter-spacing:.06em;
}
.article-body blockquote{
  margin:1.6em 0;
  padding:20px 24px;
  border-radius:var(--radius);
  background:rgba(22,44,70,.6);
  border-left:3px solid var(--mint);
  color:#CFE0F0;
  font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--radius);
  margin:1.6em 0 .6em;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--muted);
  text-align:center;
  margin-top:.6em;
}
.article-body a{border-bottom:1px dashed rgba(47,227,176,.5);}
.article-body a:hover{border-bottom-color:var(--mint);}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:14.5px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.article-body th,
.article-body td{
  padding:12px 14px;
  border-bottom:1px solid var(--line-2);
  text-align:left;
}
.article-body th{background:rgba(95,168,255,.12);color:#fff;font-weight:650;}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{
  border:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--line),transparent);
  margin:2em 0;
}
/* ============ 空状态 ============ */
.empty-state{text-align:center;padding:20px 0 8px;}
.empty-state i{font-size:34px;color:var(--mint);margin-bottom:18px;display:block;}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--muted);max-width:480px;margin:0 auto 24px;}
/* ============ 提示卡 ============ */
.notice-card{
  display:flex;
  gap:20px;
  align-items:flex-start;
  max-width:820px;
  margin:0 auto;
}
.notice-icon{
  flex:0 0 auto;
  width:56px;height:56px;
  border-radius:16px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(47,227,176,.1);
  border:1px solid rgba(47,227,176,.35);
  color:var(--mint);
  font-size:20px;
  box-shadow:0 0 22px rgba(47,227,176,.18) inset;
}
.notice-card h3{font-size:18px;margin-bottom:8px;}
.notice-card p{color:var(--muted);font-size:14.5px;margin:0;}
.notice-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px 26px;
  margin-top:16px;
}
.notice-list li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--muted);
}
.notice-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--mint);
}
/* ============ 版块标题 ============ */
.block-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:38px;
}
.block-head h2{font-size:clamp(22px,2.4vw,31px);line-height:1.35;}
.block-head p{color:var(--muted);font-size:14.5px;margin:8px 0 0;max-width:600px;}
/* ============ 相关推荐 ============ */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,176,.55);
  box-shadow:0 0 0 1px rgba(47,227,176,.2),0 26px 52px rgba(0,0,0,.46);
}
.rel-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(140deg,rgba(95,168,255,.2),rgba(47,227,176,.12));
}
.rel-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
  opacity:.92;
}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.rel-body .tag{margin-bottom:12px;align-self:flex-start;}
.rel-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.rel-body p{color:var(--muted);font-size:14px;line-height:1.7;margin:0 0 16px;}
.rel-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(159,179,200,.85);
}
.rel-meta a{font-family:inherit;font-size:13px;color:var(--mint);}
.rel-meta a:hover{color:#87f5d8;}
/* ============ 上下篇 ============ */
.pager{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  max-width:820px;
  margin:0 auto;
}
.pager a{
  display:block;
  padding:22px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(22,44,70,.45);
  transition:border-color .24s ease,background .24s ease,transform .24s ease;
}
.pager a:hover{
  border-color:rgba(47,227,176,.55);
  background:rgba(47,227,176,.08);
  transform:translateY(-2px);
}
.pager .pager-label{
  display:block;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--mint);
  margin-bottom:8px;
}
.pager strong{display:block;color:#fff;font-size:15.5px;font-weight:650;}
.pager span.pager-desc{display:block;color:var(--muted);font-size:13.5px;margin-top:6px;}
/* ============ 页尾 CTA ============ */
.cta-banner{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(47,227,176,.32);
  background:
    radial-gradient(700px 300px at 12% 0%, rgba(47,227,176,.2), transparent 62%),
    linear-gradient(120deg,#0C1F38 0%,#123A5E 55%,#0B2237 100%);
  box-shadow:0 0 0 1px rgba(47,227,176,.14),0 30px 60px rgba(0,0,0,.45);
  padding:48px;
  display:grid;
  grid-template-columns:1.35fr .65fr;
  gap:36px;
  align-items:center;
}
.cta-banner::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 78% 30%, #000 10%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 78% 30%, #000 10%, transparent 70%);
}
.cta-banner > *{position:relative;z-index:1;}
.cta-banner h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-banner p{color:rgba(232,241,251,.8);font-size:15px;margin-bottom:24px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-side{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(6,12,24,.55);
  padding:24px;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.cta-side .stat{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  padding:10px 0;
  border-bottom:1px dashed rgba(120,200,255,.16);
}
.cta-side .stat:last-child{border-bottom:0;}
.cta-side .stat b{
  font-family:var(--mono);
  font-size:20px;
  color:var(--mint);
  letter-spacing:.02em;
}
.cta-side .stat span{font-size:13px;color:var(--muted);}
/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,#04080F 0%,#081220 100%);
  border-top:1px solid var(--line);
  padding:60px 0 26px;
  margin-top:8px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,176,.75),rgba(95,168,255,.6),transparent);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;color:#fff;font-weight:700;}
.footer-desc{color:var(--muted);font-size:14px;line-height:1.75;max-width:320px;margin:14px 0 18px;}
.social-row{display:flex;gap:10px;flex-wrap:wrap;}
.social-row a{
  width:40px;height:40px;
  border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.social-row a:hover{
  color:#04212A;
  background:var(--mint);
  border-color:var(--mint);
  transform:translateY(-2px);
}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:var(--muted);font-size:14px;}
.footer-links a:hover{color:var(--mint);}
.footer-contact li{
  display:flex;
  gap:10px;
  color:var(--muted);
  font-size:13.5px;
  line-height:1.65;
  margin-bottom:12px;
}
.footer-contact i{color:var(--mint);margin-top:4px;flex-shrink:0;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
  padding-top:22px;
  border-top:1px solid var(--line-2);
  font-size:13px;
  color:var(--muted);
}
.footer-bottom p{margin:0;}
.footer-bottom p:last-child{font-family:var(--mono);letter-spacing:.06em;color:rgba(159,179,200,.7);}
/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .cta-banner{padding:40px;}
}
@media screen and (max-width:1024px){
  .section{padding:72px 0;}
  .article-shell{padding:36px 32px 42px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-banner{grid-template-columns:1fr;}
  .cta-side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;}
  .brand-sub{display:none;}
}
@media screen and (max-width:860px){
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .site-nav{
    position:fixed;
    top:72px;right:0;bottom:0;
    width:min(300px,84vw);
    margin-left:0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:22px 18px 32px;
    background:linear-gradient(170deg,#0B1B33 0%,#123A5E 60%,#0A1B2E 100%);
    border-left:1px solid rgba(120,200,255,.24);
    box-shadow:-18px 0 40px rgba(0,0,0,.5);
    transform:translateX(105%);
    transition:transform .3s ease;
    overflow-y:auto;
  }
  .site-nav.is-open{transform:translateX(0);}
  .site-nav a{height:50px;padding:0 16px;font-size:15.5px;}
  .site-nav a::after{left:16px;right:16px;bottom:9px;}
  .nav-mobile-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    margin-top:16px;
    min-height:48px;
    border-radius:999px;
    font-weight:650;
    color:#04212A !important;
    background:linear-gradient(135deg,#2FE3B0,#1FB48C);
    box-shadow:0 0 0 1px rgba(47,227,176,.45),0 10px 26px rgba(47,227,176,.3);
  }
  .nav-mobile-cta::after{display:none;}
  .article-hero{padding:44px 0 36px;}
  .article-stage{padding:52px 0 60px;}
}
@media screen and (max-width:768px){
  .section{padding:60px 0;}
  .section--tight{padding:48px 0;}
  .article-shell{padding:28px 22px 34px;border-radius:var(--radius);}
  .article-body{font-size:15.5px;line-height:1.85;}
  .notice-card{flex-direction:column;gap:16px;}
  .notice-list{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;}
  .cta-banner{padding:30px 24px;}
  .cta-side{grid-template-columns:1fr;}
  .meta-row{gap:8px 16px;font-size:12px;}
  .block-head{margin-bottom:28px;}
}
@media screen and (max-width:520px){
  .wrap{padding:0 16px;}
  .nav-inner{padding:0 16px;min-height:66px;}
  .site-nav{top:66px;}
  .brand-name{font-size:15.5px;}
  .btn{width:100%;padding:0 20px;}
  .cta-actions{flex-direction:column;}
  .article-h1{font-size:25px;}
  .article-lead{font-size:14.5px;}
  .article-shell{padding:24px 18px 30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --ink-900:#060C18;
  --ink-800:#0A1424;
  --ink-700:#101E33;
  --glass:rgba(22,44,70,.55);
  --glass-2:rgba(16,32,54,.78);
  --line:rgba(120,200,255,.18);
  --line-2:rgba(120,200,255,.10);
  --mint:#2FE3B0;
  --azure:#5FA8FF;
  --amber:#FFB84D;
  --text:#E8F1FB;
  --muted:#9FB3C8;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.35);
  --mono:ui-monospace,SFMono-Regular,"Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 12% -8%, rgba(47,227,176,.09), transparent 62%),
    radial-gradient(900px 520px at 88% 2%, rgba(95,168,255,.10), transparent 58%),
    var(--ink-900);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--mint);text-decoration:none;transition:color .2s ease;}
a:hover{color:#87f5d8;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:8px;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.3;font-weight:700;color:#fff;}
h1{font-size:clamp(28px,3.6vw,42px);line-height:1.22;letter-spacing:-.01em;}
h2{font-size:clamp(22px,2.4vw,32px);}
h3{font-size:19px;}
p{margin:0 0 1em;color:var(--muted);}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px;}
.row{max-width:none;margin-left:-.9375rem;margin-right:-.9375rem;}
.row .row{margin-left:0;margin-right:0;}
.section{position:relative;padding:80px 0;}
.section--tight{padding:58px 0;}
.section--alt{
  background:linear-gradient(180deg,rgba(10,20,36,.92) 0%,rgba(6,12,24,.98) 100%);
  border-top:1px solid var(--line-2);
  border-bottom:1px solid var(--line-2);
}
.section--mesh{overflow:hidden;}
.section--mesh::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 72%);
}
.section > .wrap{position:relative;z-index:1;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head p{max-width:46em;}
.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mint);
  padding:6px 14px;
  border:1px solid rgba(47,227,176,.32);
  border-radius:999px;
  background:rgba(47,227,176,.07);
  margin-bottom:16px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:48px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2FE3B0 0%,#1FB48C 100%);
  color:#04212A;
  box-shadow:0 0 0 1px rgba(47,227,176,.5),0 10px 30px rgba(47,227,176,.28);
}
.btn-primary:hover{
  color:#04212A;transform:translateY(-1px);
  background:linear-gradient(135deg,#5CF2C8 0%,#25C99B 100%);
  box-shadow:0 0 0 1px rgba(47,227,176,.72),0 16px 40px rgba(47,227,176,.42);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.045);color:var(--text);border:1px solid var(--line);
}
.btn-ghost:hover{
  color:#fff;background:rgba(47,227,176,.10);
  border-color:rgba(47,227,176,.55);transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,227,176,.55);
  box-shadow:0 0 0 1px rgba(47,227,176,.22),0 26px 52px rgba(0,0,0,.46);
}
.tag{
  display:inline-block;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--azure);border:1px solid rgba(95,168,255,.32);
  background:rgba(95,168,255,.09);border-radius:999px;padding:3px 11px;
}
.tag--mint{color:var(--mint);border-color:rgba(47,227,176,.34);background:rgba(47,227,176,.09);}
.tag--amber{color:var(--amber);border-color:rgba(255,184,77,.34);background:rgba(255,184,77,.10);}
/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(100deg,#0B1B33 0%,#123A5E 52%,#0E2A44 100%);
  border-bottom:1px solid rgba(120,200,255,.24);
  box-shadow:0 10px 30px rgba(0,0,0,.38);
}
.nav-inner{
  max-width:1160px;margin:0 auto;padding:0 20px;min-height:72px;
  display:flex;align-items:center;gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;color:#fff;}
.brand-dot{
  width:10px;height:10px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 12px var(--mint),0 0 24px rgba(47,227,176,.5);flex-shrink:0;
}
.brand-name{font-size:17px;font-weight:750;letter-spacing:.02em;color:#fff;white-space:nowrap;}
.brand-sub{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:rgba(232,241,251,.62);
  padding-left:12px;border-left:1px solid rgba(255,255,255,.2);white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.site-nav a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 15px;
  border-radius:10px;font-size:15px;color:rgba(232,241,251,.84);
  transition:background .2s ease,color .2s ease;white-space:nowrap;
}
.site-nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:7px;height:2px;border-radius:2px;
  background:var(--mint);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.site-nav a:hover{background:rgba(255,255,255,.12);color:#fff;}
.site-nav a:hover::after,.site-nav a.active::after{transform:scaleX(1);}
.site-nav a.active{background:rgba(255,255,255,.13);color:#fff;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;
  border-radius:999px;font-size:14px;font-weight:650;color:#04212A;
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);
  box-shadow:0 0 0 1px rgba(47,227,176,.45),0 8px 22px rgba(47,227,176,.28);
  transition:transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-cta:hover{color:#04212A;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,227,176,.7),0 14px 32px rgba(47,227,176,.4);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;border-radius:12px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:18px;cursor:pointer;
}
.nav-mobile-cta{display:none;}
/* 分类标题带 */
.cat-hero{
  position:relative;overflow:hidden;
  padding:56px 0 44px;
  border-bottom:1px solid var(--line-2);
  background:
    linear-gradient(180deg,rgba(11,27,51,.86) 0%,rgba(6,12,24,.96) 100%),
    url('/assets/images/95769a866313e7cf.webp') center/cover no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse at 20% 0%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 20% 0%,#000 10%,transparent 78%);
}
.cat-hero .wrap{position:relative;z-index:2;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;color:var(--muted);
  margin-bottom:18px;
}
.crumb a{color:rgba(232,241,251,.78);}
.crumb a:hover{color:var(--mint);}
.crumb .sep{color:rgba(159,179,200,.5);}
.crumb .now{color:var(--mint);}
.cat-hero h1{max-width:14em;margin-bottom:14px;}
.cat-hero .lead{font-size:16px;max-width:620px;color:rgba(232,241,251,.82);margin-bottom:24px;}
.cat-meta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.cat-meta div{
  display:flex;flex-direction:column;gap:2px;
  padding:10px 18px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  min-width:132px;
}
.cat-meta span{font-size:12px;color:var(--muted);letter-spacing:.06em;}
.cat-meta strong{font-family:var(--mono);font-size:14.5px;color:#fff;letter-spacing:.04em;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  min-height:40px;padding:0 18px;border-radius:999px;font-size:14px;cursor:pointer;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--muted);
  display:inline-flex;align-items:center;transition:all .22s ease;
}
.chip:hover{color:#fff;border-color:rgba(47,227,176,.5);background:rgba(47,227,176,.09);}
.chip.is-active{
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);color:#04212A;font-weight:650;
  border-color:transparent;box-shadow:0 8px 22px rgba(47,227,176,.3);
}
/* 主体两栏 */
.feature-card{
  overflow:hidden;padding:0;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease;
}
.feature-card:hover{transform:translateY(-3px);border-color:rgba(47,227,176,.5);box-shadow:0 0 0 1px rgba(47,227,176,.2),0 26px 52px rgba(0,0,0,.46);}
.feature-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.feature-card:hover .thumb img{transform:scale(1.04);}
.feature-card .thumb .badge{
  position:absolute;top:16px;left:16px;
  background:rgba(6,12,24,.78);border:1px solid rgba(47,227,176,.5);
  color:var(--mint);font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;
  padding:5px 12px;border-radius:999px;backdrop-filter:blur(6px);
}
.feature-body{padding:24px 26px 28px;}
.feature-body h2{font-size:clamp(20px,2vw,26px);margin-bottom:10px;}
.feature-body p{font-size:15px;margin-bottom:16px;}
.meta-line{
  display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:20px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;color:var(--muted);
}
.meta-line i{color:var(--azure);margin-right:5px;}
.feature-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
/* 紧凑列表 */
.mini-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.mini-item{
  display:flex;gap:16px;align-items:center;padding:14px;
  background:rgba(16,32,54,.55);border:1px solid var(--line-2);border-radius:14px;
  transition:border-color .24s ease,background .24s ease,transform .24s ease;
}
.mini-item:hover{border-color:rgba(47,227,176,.45);background:rgba(22,44,70,.7);transform:translateX(3px);}
.mini-item img{width:92px;height:72px;object-fit:cover;border-radius:10px;flex-shrink:0;}
.mini-item .mini-body{min-width:0;}
.mini-item h3{font-size:16px;margin-bottom:4px;}
.mini-item p{font-size:13.5px;margin:0 0 6px;line-height:1.6;}
.mini-item .mini-tags{display:flex;flex-wrap:wrap;gap:8px;}
.mini-item time{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.06em;}
/* 侧栏 */
.side-stack{display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:var(--glass-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);box-shadow:var(--shadow);
}
.side-card h3{font-size:16px;display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-card h3 i{color:var(--mint);}
.filter-group{margin-bottom:16px;}
.filter-group:last-child{margin-bottom:0;}
.filter-group span{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;color:var(--muted);margin-bottom:8px;}
.filter-group .chip-row{gap:8px;}
.filter-group .chip{min-height:34px;padding:0 13px;font-size:13px;}
.side-note{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.side-note li{position:relative;padding-left:20px;font-size:14px;color:var(--muted);line-height:1.65;}
.side-note li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;
  background:var(--mint);box-shadow:0 0 10px rgba(47,227,176,.7);
}
/* 标签墙 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag-cloud a{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;font-size:14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  transition:all .22s ease;
}
.tag-cloud a:hover{background:rgba(47,227,176,.1);border-color:rgba(47,227,176,.55);color:#fff;transform:translateY(-2px);}
.tag-cloud a i{color:var(--azure);font-size:12px;}
/* 速览榜 */
.rank-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line-2);}
.rank-item{
  display:flex;align-items:center;gap:18px;padding:18px 6px;
  border-bottom:1px solid var(--line-2);
  transition:background .22s ease,padding-left .22s ease;
}
.rank-item:hover{background:rgba(47,227,176,.05);padding-left:14px;}
.rank-no{
  font-family:var(--mono);font-size:20px;font-weight:700;color:rgba(47,227,176,.8);
  min-width:46px;letter-spacing:.04em;
}
.rank-body{flex:1;min-width:0;}
.rank-body h3{font-size:16.5px;margin-bottom:4px;}
.rank-body p{font-size:13.5px;margin:0;line-height:1.6;}
.rank-side{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0;}
.rank-side .heat{font-family:var(--mono);font-size:12px;color:var(--amber);letter-spacing:.08em;}
/* 专题卡 */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.topic-card{
  display:flex;flex-direction:column;overflow:hidden;padding:0;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:transform .28s ease,border-color .28s ease;
}
.topic-card:hover{transform:translateY(-4px);border-color:rgba(47,227,176,.5);}
.topic-card img{aspect-ratio:16/10;width:100%;object-fit:cover;}
.topic-card .topic-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.topic-card h3{font-size:17px;margin-bottom:8px;}
.topic-card p{font-size:14px;margin:0 0 14px;flex:1;}
.topic-card .go{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;color:var(--mint);}
.topic-card .go i{margin-left:6px;transition:transform .2s ease;}
.topic-card:hover .go i{transform:translateX(4px);}
/* 三步 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step;}
.step-item{
  position:relative;padding:28px 24px 24px;
  background:linear-gradient(180deg,rgba(22,44,70,.6),rgba(10,20,36,.6));
  border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .25s ease,transform .25s ease;
}
.step-item:hover{border-color:rgba(47,227,176,.5);transform:translateY(-3px);}
.step-item .num{
  font-family:var(--mono);font-size:13px;letter-spacing:.2em;color:var(--mint);
  display:block;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--line-2);
}
.step-item h3{font-size:17px;margin-bottom:8px;}
.step-item p{font-size:14px;margin:0;}
/* 安全 */
.safety-list{list-style:none;margin:0 0 26px;padding:0;display:flex;flex-direction:column;gap:16px;}
.safety-list li{
  display:flex;gap:14px;align-items:flex-start;padding:16px 18px;
  background:rgba(16,32,54,.5);border:1px solid var(--line-2);border-radius:14px;
  transition:border-color .22s ease;
}
.safety-list li:hover{border-color:rgba(47,227,176,.45);}
.safety-list .ico{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(47,227,176,.12);color:var(--mint);font-size:14px;
  border:1px solid rgba(47,227,176,.3);
}
.safety-list h3{font-size:15.5px;margin-bottom:4px;}
.safety-list p{font-size:13.5px;margin:0;line-height:1.65;}
/* 评价 */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.quote-card{
  position:relative;padding:26px 24px 22px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);border-top:2px solid rgba(47,227,176,.55);
  transition:transform .26s ease,border-color .26s ease;
}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(47,227,176,.5);}
.quote-card p{font-size:14.5px;color:rgba(232,241,251,.9);line-height:1.75;margin-bottom:16px;}
.quote-card .who{display:flex;align-items:center;gap:10px;}
.quote-card .avatar{
  width:36px;height:36px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,rgba(47,227,176,.35),rgba(95,168,255,.35));
  border:1px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;color:#fff;
}
.quote-card .who strong{display:block;font-size:14px;color:#fff;}
.quote-card .who span{font-size:12px;color:var(--muted);font-family:var(--mono);letter-spacing:.06em;}
.stars{color:var(--amber);font-size:12px;letter-spacing:2px;margin-bottom:14px;}
/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:860px;}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color .24s ease,background .24s ease;
}
.faq-item[open]{border-color:rgba(47,227,176,.5);background:rgba(22,44,70,.72);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 56px 20px 22px;position:relative;
  font-size:16px;font-weight:650;color:#fff;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--mint);transition:transform .26s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg);}
.faq-item .faq-answer{padding:0 22px 20px;font-size:14.5px;line-height:1.8;color:var(--muted);}
/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  padding:52px 44px;
  background:linear-gradient(115deg,rgba(18,58,94,.95) 0%,rgba(11,27,51,.96) 48%,rgba(16,58,52,.92) 100%);
  border:1px solid rgba(47,227,176,.35);
  box-shadow:0 0 0 1px rgba(47,227,176,.12),0 26px 60px rgba(0,0,0,.5);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 80% 20%,#000 5%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 80% 20%,#000 5%,transparent 70%);
}
.cta-band .inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;max-width:15em;}
.cta-band p{max-width:34em;margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* 页脚 */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,#050A14 0%,#03070F 100%);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,176,.7),transparent);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:16px;color:#fff;letter-spacing:.02em;}
.footer-desc{font-size:13.5px;color:var(--muted);max-width:26em;margin-bottom:18px;line-height:1.7;}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted);font-size:14px;
  transition:all .22s ease;
}
.social-row a:hover{color:var(--mint);border-color:rgba(47,227,176,.55);background:rgba(47,227,176,.1);transform:translateY(-2px);}
.site-footer h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.06em;}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--mint);}
.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.footer-contact li{font-size:13px;color:var(--muted);line-height:1.7;display:flex;gap:9px;align-items:flex-start;}
.footer-contact i{color:var(--mint);margin-top:4px;flex-shrink:0;}
.footer-bottom{
  margin-top:44px;padding:20px 0 26px;border-top:1px solid var(--line-2);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;align-items:center;
}
.footer-bottom p{margin:0;font-size:12.5px;color:rgba(159,179,200,.7);font-family:var(--mono);letter-spacing:.04em;}
@media screen and (max-width:1024px){
  .brand-sub{display:none;}
  .nav-inner{gap:12px;}
  .site-nav a{padding:0 11px;font-size:14px;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .section{padding:64px 0;}
}
@media screen and (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .site-nav{
    position:fixed;top:72px;right:0;width:min(320px,86vw);height:calc(100vh - 72px);
    flex-direction:column;align-items:stretch;gap:6px;margin-left:0;
    background:linear-gradient(160deg,#0B1B33 0%,#0E2A44 100%);
    padding:20px;border-left:1px solid var(--line);
    transform:translateX(110%);transition:transform .3s ease;
    box-shadow:-20px 0 44px rgba(0,0,0,.55);
    overflow-y:auto;
  }
  .site-nav.is-open{transform:translateX(0);}
  .site-nav a{height:48px;padding:0 16px;width:100%;border-radius:12px;}
  .site-nav a::after{display:none;}
  .nav-mobile-cta{
    display:inline-flex;margin-top:12px;justify-content:center;
    background:linear-gradient(135deg,#2FE3B0,#1FB48C)!important;color:#04212A!important;font-weight:650;
  }
  .cat-hero{padding:40px 0 34px;}
  .cat-meta div{min-width:118px;padding:9px 14px;}
}
@media screen and (max-width:768px){
  .feature-body{padding:20px;}
  .topic-grid{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .rank-item{flex-wrap:wrap;gap:10px;}
  .rank-side{flex-direction:row;align-items:center;width:100%;justify-content:space-between;}
  .mini-item{align-items:flex-start;}
  .mini-item img{width:76px;height:64px;}
}
@media screen and (max-width:520px){
  .wrap{padding:0 16px;}
  .brand-name{font-size:15px;}
  h1{font-size:26px;}
  .btn{width:100%;}
  .feature-actions .btn,.cta-actions .btn{width:100%;}
  .cat-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
  .cat-meta div{min-width:0;}
  .section{padding:52px 0;}
  .tag-cloud a{padding:8px 14px;font-size:13px;}
  .rank-no{font-size:17px;min-width:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --ink-900:#060C18;
  --ink-800:#0A1424;
  --ink-700:#101E33;
  --glass:rgba(22,44,70,.55);
  --glass-2:rgba(16,32,54,.78);
  --line:rgba(120,200,255,.18);
  --line-2:rgba(120,200,255,.10);
  --mint:#2FE3B0;
  --azure:#5FA8FF;
  --amber:#FFB84D;
  --text:#E8F1FB;
  --muted:#9FB3C8;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.35);
  --mono:ui-monospace,SFMono-Regular,"Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 12% -8%, rgba(47,227,176,.09), transparent 62%),
    radial-gradient(900px 520px at 88% 2%, rgba(95,168,255,.10), transparent 58%),
    var(--ink-900);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--mint);text-decoration:none;transition:color .2s ease;}
a:hover{color:#87f5d8;}
h1,h2,h3,h4{margin:0 0 .55em;line-height:1.3;font-weight:750;color:#fff;letter-spacing:.01em;}
p{margin:0 0 1em;}
.row{max-width:none;margin-left:-.9375rem;margin-right:-.9375rem;}
.row .row{margin-left:0;margin-right:0;}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px;}

/* ============ 版块 ============ */
.section{position:relative;padding:84px 0;}
.section--tight{padding:56px 0;}
.section--alt{
  background:linear-gradient(180deg,rgba(10,20,36,.92) 0%,rgba(6,12,24,.98) 100%);
  border-top:1px solid var(--line-2);
  border-bottom:1px solid var(--line-2);
}
.section--mesh{overflow:hidden;}
.section--mesh::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 70%);
}
.section > .wrap{position:relative;z-index:1;}
.sec-head{max-width:760px;margin-bottom:38px;}
.sec-head h2{font-size:clamp(22px,2.4vw,32px);}
.sec-head p{color:var(--muted);font-size:15.5px;max-width:720px;margin-bottom:0;}
.eyebrow{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--mint);padding:6px 14px;margin-bottom:16px;
  border:1px solid rgba(47,227,176,.32);border-radius:999px;background:rgba(47,227,176,.07);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:48px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:650;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2FE3B0 0%,#1FB48C 100%);
  color:#04212A;
  box-shadow:0 0 0 1px rgba(47,227,176,.5),0 10px 30px rgba(47,227,176,.28);
}
.btn-primary:hover{
  color:#04212A;transform:translateY(-1px);
  background:linear-gradient(135deg,#5CF2C8 0%,#25C99B 100%);
  box-shadow:0 0 0 1px rgba(47,227,176,.72),0 16px 40px rgba(47,227,176,.42);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:rgba(255,255,255,.045);color:var(--text);border:1px solid var(--line);}
.btn-ghost:hover{color:#fff;background:rgba(47,227,176,.10);border-color:rgba(47,227,176,.55);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px;}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}

/* ============ 卡片 / 标签 ============ */
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  backdrop-filter:blur(14px) saturate(130%);-webkit-backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{
  transform:translateY(-4px);border-color:rgba(47,227,176,.55);
  box-shadow:0 0 0 1px rgba(47,227,176,.22),0 26px 52px rgba(0,0,0,.46);
}
.tag{
  display:inline-block;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--azure);border:1px solid rgba(95,168,255,.32);background:rgba(95,168,255,.09);
  border-radius:999px;padding:3px 11px;white-space:nowrap;
}
.tag--mint{color:var(--mint);border-color:rgba(47,227,176,.34);background:rgba(47,227,176,.09);}
.tag--amber{color:var(--amber);border-color:rgba(255,184,77,.34);background:rgba(255,184,77,.10);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(100deg,#0B1B33 0%,#123A5E 52%,#0E2A44 100%);
  border-bottom:1px solid rgba(120,200,255,.24);
  box-shadow:0 10px 30px rgba(0,0,0,.38);
}
.nav-inner{
  max-width:1160px;margin:0 auto;padding:0 20px;min-height:72px;
  display:flex;align-items:center;gap:20px;position:relative;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;color:#fff;}
.brand-dot{
  width:10px;height:10px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 12px var(--mint),0 0 24px rgba(47,227,176,.5);flex-shrink:0;
}
.brand-name{font-size:17px;font-weight:750;letter-spacing:.02em;color:#fff;white-space:nowrap;}
.brand-sub{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:rgba(232,241,251,.62);
  padding-left:12px;border-left:1px solid rgba(255,255,255,.2);white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.site-nav a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 15px;
  border-radius:10px;font-size:15px;color:rgba(232,241,251,.84);white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.site-nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:7px;height:2px;border-radius:2px;
  background:var(--mint);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.site-nav a:hover{background:rgba(255,255,255,.12);color:#fff;}
.site-nav a:hover::after,.site-nav a.active::after{transform:scaleX(1);}
.site-nav a.active{background:rgba(255,255,255,.13);color:#fff;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;
  border-radius:999px;font-size:14px;font-weight:650;color:#04212A;
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);
  box-shadow:0 0 0 1px rgba(47,227,176,.45),0 8px 22px rgba(47,227,176,.26);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-cta:hover{color:#04212A;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,227,176,.7),0 14px 30px rgba(47,227,176,.36);}
.nav-cta:active{transform:translateY(1px);}
.nav-mobile-cta{display:none;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;
  align-items:center;justify-content:center;font-size:18px;cursor:pointer;
}
.nav-toggle:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}

/* ============ 分类标题带 ============ */
.page-hero{
  position:relative;overflow:hidden;padding:64px 0 52px;
  border-bottom:1px solid var(--line-2);
  background-image:
    linear-gradient(115deg,rgba(11,27,51,.95) 0%,rgba(14,42,68,.86) 58%,rgba(6,12,24,.94) 100%),
    url(/assets/images/c1d4cbabcaf934b7.webp);
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,#000 0%,transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 85%);
}
.page-hero .wrap{position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--mint);}
.crumbs .sep{opacity:.45;}
.page-hero h1{font-size:clamp(26px,3.6vw,44px);max-width:900px;margin-bottom:14px;}
.page-hero .lede{max-width:700px;color:var(--muted);font-size:16px;margin-bottom:0;}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.chip{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;
  border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.045);
  color:var(--muted);font-size:14px;transition:background .2s,border-color .2s,color .2s,transform .2s;
}
.chip:hover{color:#fff;border-color:rgba(47,227,176,.55);background:rgba(47,227,176,.10);}
.chip.is-active{
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);color:#04212A;border-color:transparent;
  font-weight:650;box-shadow:0 0 0 1px rgba(47,227,176,.45),0 8px 22px rgba(47,227,176,.22);
}
.chip:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}

/* ============ 频道入口 ============ */
.chan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.chan{
  display:block;padding:26px;border-radius:var(--radius);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);color:var(--text);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.chan:hover{transform:translateY(-4px);border-color:rgba(47,227,176,.55);color:var(--text);box-shadow:0 0 0 1px rgba(47,227,176,.2),0 26px 52px rgba(0,0,0,.46);}
.chan i{font-size:20px;color:var(--mint);margin-bottom:14px;display:block;}
.chan strong{display:block;font-size:17px;color:#fff;margin-bottom:6px;}
.chan span{display:block;font-size:14px;color:var(--muted);line-height:1.7;}
.chan.is-current{border-color:rgba(47,227,176,.5);background:var(--glass-2);}

/* ============ 双列错落卡片流 ============ */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.duo__col{display:grid;gap:24px;min-width:0;}
.duo__col--offset{padding-top:52px;}
.post-card{padding:20px;}
.post-card__media{
  position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:14px;margin-bottom:18px;
  background:rgba(255,255,255,.04);
}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.post-card:hover .post-card__media img{transform:scale(1.05);}
.post-card__media .tag{position:absolute;top:12px;left:12px;background:rgba(6,12,24,.78);backdrop-filter:blur(6px);}
.post-card h3{font-size:19px;margin-bottom:8px;}
.post-card p{color:var(--muted);font-size:14.5px;margin-bottom:12px;}
.post-card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid var(--line-2);padding-top:12px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;color:var(--muted);
}
.post-card__foot a{font-size:13.5px;font-family:inherit;letter-spacing:0;}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat{
  padding:24px 22px;border-radius:var(--radius);border:1px solid var(--line);
  background:var(--glass-2);box-shadow:var(--shadow);
}
.stat .num{
  font-family:var(--mono);font-size:clamp(24px,3vw,34px);letter-spacing:.04em;
  color:var(--mint);line-height:1.2;display:block;
}
.stat .num small{font-size:.5em;color:var(--muted);margin-left:4px;letter-spacing:.1em;}
.stat .lbl{display:block;margin-top:8px;font-size:12px;letter-spacing:.16em;color:var(--muted);}
.scale{
  height:8px;border-radius:4px;margin-top:28px;
  border:1px solid var(--line-2);
  background:repeating-linear-gradient(90deg,rgba(47,227,176,.6) 0 2px,transparent 2px 16px);
}

/* ============ 三步流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.step{
  position:relative;padding:26px;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px) saturate(130%);-webkit-backdrop-filter:blur(14px) saturate(130%);
  transition:transform .28s ease,border-color .28s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(95,168,255,.5);}
.step .no{font-family:var(--mono);font-size:30px;letter-spacing:.08em;color:rgba(95,168,255,.55);display:block;}
.step h3{font-size:18px;margin:12px 0 8px;}
.step p{color:var(--muted);font-size:14.5px;margin-bottom:0;}
.step::after{content:"";position:absolute;left:26px;right:26px;bottom:16px;height:1px;background:var(--line-2);}

/* ============ 标签墙 ============ */
.cloud{display:flex;flex-wrap:wrap;gap:12px;max-width:900px;}
.cloud span{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text);font-size:14px;transition:border-color .2s,background .2s,box-shadow .2s,transform .2s;
}
.cloud span:hover{
  border-color:rgba(47,227,176,.6);background:rgba(47,227,176,.10);
  box-shadow:0 0 0 1px rgba(47,227,176,.22),0 10px 24px rgba(47,227,176,.16);transform:translateY(-2px);
}
.cloud span.hot{border-color:rgba(255,184,77,.45);color:var(--amber);background:rgba(255,184,77,.09);}

/* ============ 安全边界 ============ */
.safety{display:grid;grid-template-columns:1.12fr .88fr;gap:30px;align-items:start;}
.check{list-style:none;padding:0;margin:0;display:grid;gap:18px;}
.check li{display:grid;grid-template-columns:12px 1fr;gap:16px;font-size:14.5px;color:var(--muted);}
.check li::before{
  content:"";width:10px;height:10px;margin-top:9px;border-radius:2px;background:var(--mint);
  box-shadow:0 0 10px rgba(47,227,176,.65);
}
.check strong{display:block;color:#fff;font-size:15.5px;margin-bottom:2px;font-weight:650;}
.safety-card{padding:28px;border-radius:var(--radius-lg);border:1px solid rgba(47,227,176,.32);background:var(--glass-2);box-shadow:var(--shadow);}
.safety-card h3{font-size:18px;}
.safety-card p{color:var(--muted);font-size:14.5px;}

/* ============ 常见问题 ============ */
.faq{display:grid;gap:14px;max-width:920px;}
.faq details{
  border:1px solid var(--line);border-radius:14px;background:var(--glass);
  padding:0 22px;transition:border-color .25s,background .25s;
  backdrop-filter:blur(14px) saturate(130%);-webkit-backdrop-filter:blur(14px) saturate(130%);
}
.faq details[open]{border-color:rgba(47,227,176,.5);background:var(--glass-2);}
.faq summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-weight:650;color:#fff;font-size:16px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:focus-visible{outline:2px solid var(--mint);outline-offset:4px;border-radius:6px;}
.faq summary i{color:var(--mint);transition:transform .25s ease;font-size:14px;}
.faq details[open] summary i{transform:rotate(180deg);}
.faq .a{padding:0 0 20px;color:var(--muted);font-size:15px;max-width:760px;}

/* ============ 资讯 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{display:flex;flex-direction:column;padding:24px;}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;}
.news-card__date{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.06em;}
.news-card h3{font-size:17px;line-height:1.5;}
.news-card h3 a{color:#fff;}
.news-card h3 a:hover{color:var(--mint);}
.news-card p{color:var(--muted);font-size:14px;margin-bottom:18px;}
.news-card__link{margin-top:auto;font-size:14px;display:inline-flex;align-items:center;gap:8px;}
.empty-state{
  padding:44px 24px;border-radius:var(--radius);border:1px dashed var(--line);
  background:rgba(255,255,255,.03);text-align:center;color:var(--muted);
}
.empty-state i{font-size:26px;color:var(--azure);margin-bottom:12px;display:block;}
.empty-state p{margin:0;font-size:15px;}

/* ============ 收口 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid rgba(47,227,176,.35);
  background-image:
    linear-gradient(115deg,rgba(18,58,94,.94) 0%,rgba(10,20,36,.96) 100%),
    url(/assets/images/d3849dfd1282c187.webp);
  background-size:cover;background-position:center;
  padding:46px;box-shadow:0 0 0 1px rgba(47,227,176,.14),0 30px 60px rgba(0,0,0,.5);
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);}
.cta-band p{color:var(--muted);font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px;}
.cta-panel{
  border-radius:var(--radius);border:1px solid var(--line);background:rgba(6,12,24,.55);
  padding:24px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.cta-panel ul{list-style:none;padding:0;margin:0;display:grid;gap:12px;}
.cta-panel li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--muted);}
.cta-panel li i{color:var(--mint);margin-top:5px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:#04080F;padding:64px 0 28px;
  border-top:1px solid transparent;
  background-image:linear-gradient(#04080F,#04080F),linear-gradient(90deg,rgba(47,227,176,0),rgba(47,227,176,.7),rgba(95,168,255,.5),rgba(47,227,176,0));
  background-origin:border-box;background-clip:padding-box,border-box;
}
.site-footer .wrap{max-width:1160px;margin:0 auto;padding:0 20px;}
.site-footer .row{max-width:none;margin-left:0;margin-right:0;}
.site-footer .columns{padding-left:0;padding-right:28px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:16px;color:#fff;}
.footer-desc{color:var(--muted);font-size:14px;max-width:300px;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row a{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--muted);
  transition:color .2s,border-color .2s,background .2s,transform .2s;
}
.social-row a:hover{color:var(--mint);border-color:rgba(47,227,176,.55);background:rgba(47,227,176,.1);transform:translateY(-2px);}
.site-footer h4{font-size:14px;letter-spacing:.08em;color:#fff;margin-bottom:16px;}
.footer-links,.footer-contact{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.footer-links a{color:var(--muted);font-size:14px;}
.footer-links a:hover{color:var(--mint);}
.footer-contact li{color:var(--muted);font-size:13.5px;display:flex;gap:10px;align-items:flex-start;line-height:1.65;}
.footer-contact i{color:var(--azure);margin-top:4px;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line-2);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
.footer-bottom p{margin:0;font-size:12.5px;color:rgba(159,179,200,.8);font-family:var(--mono);letter-spacing:.04em;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .stats{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .chan-grid{gap:18px;}
  .duo{gap:20px;}
  .duo__col--offset{padding-top:36px;}
}
@media (max-width:980px){
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-inner{flex-wrap:wrap;gap:12px;padding-top:10px;padding-bottom:10px;}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:linear-gradient(160deg,#0B1B33,#123A5E);border-bottom:1px solid var(--line);
    box-shadow:0 24px 48px rgba(0,0,0,.55);padding:14px 16px 18px;margin-left:0;
  }
  .site-header.nav-open .site-nav{display:flex;}
  .site-nav a{height:46px;padding:0 14px;font-size:15px;}
  .site-nav a::after{display:none;}
  .nav-mobile-cta{
    display:inline-flex !important;justify-content:center;align-items:center;margin-top:10px;
    background:linear-gradient(135deg,#2FE3B0,#1FB48C);color:#04212A !important;
    font-weight:700;border-radius:999px;height:48px;
  }
}
@media (max-width:768px){
  .section{padding:58px 0;}
  .section--tight{padding:44px 0;}
  .chan-grid{grid-template-columns:1fr;}
  .duo{grid-template-columns:1fr;}
  .duo__col--offset{padding-top:0;}
  .steps{grid-template-columns:1fr;}
  .safety{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:28px;gap:24px;}
  .brand-sub{display:none;}
  .footer-grid .columns{padding-right:0;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .page-hero{padding:48px 0 40px;}
  .page-hero h1{font-size:27px;}
  .chips{gap:8px;}
  .chip{height:38px;padding:0 15px;font-size:13px;}
  .stats{grid-template-columns:1fr;}
  .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .social-row a{width:44px;height:44px;}
}

/* roulang page: category3 */
:root{
  --ink-900:#060C18;
  --ink-800:#0A1424;
  --ink-700:#101E33;
  --glass:rgba(22,44,70,.55);
  --glass-2:rgba(16,32,54,.78);
  --line:rgba(120,200,255,.18);
  --line-2:rgba(120,200,255,.10);
  --mint:#2FE3B0;
  --azure:#5FA8FF;
  --amber:#FFB84D;
  --text:#E8F1FB;
  --muted:#9FB3C8;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 40px rgba(0,0,0,.35);
  --mono:ui-monospace,SFMono-Regular,"Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 12% -8%, rgba(47,227,176,.09), transparent 62%),
    radial-gradient(900px 520px at 88% 2%, rgba(95,168,255,.10), transparent 58%),
    var(--ink-900);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--mint);text-decoration:none;transition:color .2s ease;}
a:hover{color:#87f5d8;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0 0 .55em;line-height:1.28;font-weight:750;letter-spacing:.01em;color:var(--text);}
h2{font-size:clamp(22px,2.4vw,32px);}
h3{font-size:19px;}
p{margin:0 0 1em;}
.row{max-width:none;margin-left:-.9375rem;margin-right:-.9375rem;}
.row .row{margin-left:0;margin-right:0;}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px;}
.section{position:relative;padding:84px 0;}
.section--tight{padding:60px 0;}
.section--alt{
  background:linear-gradient(180deg,rgba(10,20,36,.92) 0%,rgba(6,12,24,.98) 100%);
  border-top:1px solid var(--line-2);
  border-bottom:1px solid var(--line-2);
}
.section--mesh{overflow:hidden;}
.section--mesh::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%, #000 5%, transparent 70%);
}
.section > .wrap{position:relative;z-index:1;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{color:var(--muted);margin:0;}
.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mint);
  padding:6px 14px;
  border:1px solid rgba(47,227,176,.32);
  border-radius:999px;
  background:rgba(47,227,176,.07);
  margin-bottom:18px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  text-align:center;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2FE3B0 0%,#1FB48C 100%);
  color:#04212A;
  box-shadow:0 0 0 1px rgba(47,227,176,.5),0 10px 30px rgba(47,227,176,.28);
}
.btn-primary:hover{
  color:#04212A;transform:translateY(-1px);
  background:linear-gradient(135deg,#5CF2C8 0%,#25C99B 100%);
  box-shadow:0 0 0 1px rgba(47,227,176,.72),0 16px 40px rgba(47,227,176,.42);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:rgba(255,255,255,.045);color:var(--text);border:1px solid var(--line);}
.btn-ghost:hover{color:#fff;background:rgba(47,227,176,.10);border-color:rgba(47,227,176,.55);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:3px;}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;backdrop-filter:blur(14px) saturate(130%);-webkit-backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(47,227,176,.55);box-shadow:0 0 0 1px rgba(47,227,176,.22),0 26px 52px rgba(0,0,0,.46);}
.tag{
  display:inline-block;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--azure);border:1px solid rgba(95,168,255,.32);background:rgba(95,168,255,.09);
  border-radius:999px;padding:3px 11px;
}
.tag--mint{color:var(--mint);border-color:rgba(47,227,176,.34);background:rgba(47,227,176,.09);}
.tag--amber{color:var(--amber);border-color:rgba(255,184,77,.34);background:rgba(255,184,77,.10);}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(100deg,#0B1B33 0%,#123A5E 52%,#0E2A44 100%);
  border-bottom:1px solid rgba(120,200,255,.24);
  box-shadow:0 10px 30px rgba(0,0,0,.38);
}
.nav-inner{
  position:relative;
  max-width:1160px;margin:0 auto;padding:0 20px;min-height:72px;
  display:flex;align-items:center;gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;color:#fff;}
.brand-dot{
  width:10px;height:10px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 12px var(--mint),0 0 24px rgba(47,227,176,.5);flex-shrink:0;
}
.brand-name{font-size:17px;font-weight:750;letter-spacing:.02em;color:#fff;white-space:nowrap;}
.brand-sub{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:rgba(232,241,251,.62);
  padding-left:12px;border-left:1px solid rgba(255,255,255,.2);white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.site-nav a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 15px;
  border-radius:10px;font-size:15px;color:rgba(232,241,251,.84);white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.site-nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:7px;height:2px;border-radius:2px;
  background:var(--mint);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.site-nav a:hover{background:rgba(255,255,255,.12);color:#fff;}
.site-nav a:hover::after,.site-nav a.active::after{transform:scaleX(1);}
.site-nav a.active{background:rgba(255,255,255,.13);color:#fff;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;
  border-radius:999px;font-size:14px;font-weight:650;color:#04212A;
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);
  box-shadow:0 0 0 1px rgba(47,227,176,.45),0 8px 22px rgba(47,227,176,.26);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-cta:hover{color:#04212A;transform:translateY(-1px);background:linear-gradient(135deg,#5CF2C8,#25C99B);box-shadow:0 0 0 1px rgba(47,227,176,.7),0 12px 28px rgba(47,227,176,.4);}
.nav-cta:focus-visible{outline:2px solid #fff;outline-offset:3px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.2);
  color:#fff;font-size:18px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-mobile-cta{display:none;}

/* ===== 分类标题带 ===== */
.cat-hero{
  position:relative;overflow:hidden;
  padding:56px 0 48px;
  background:
    radial-gradient(720px 320px at 82% 0%, rgba(47,227,176,.16), transparent 62%),
    linear-gradient(160deg,rgba(11,27,51,.96),rgba(9,20,38,.98));
  border-bottom:1px solid var(--line-2);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(ellipse at 30% 0%, #000 8%, transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 0%, #000 8%, transparent 72%);
}
.cat-hero .wrap{position:relative;z-index:1;}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--muted);margin-bottom:20px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--mint);}
.crumb .sep{opacity:.42;}
.cat-hero h1{font-size:clamp(28px,3.6vw,44px);margin-bottom:14px;max-width:820px;}
.cat-sub{color:var(--muted);font-size:16px;max-width:620px;margin:0;}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 18px;
  border-radius:999px;font-size:14px;color:var(--muted);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.chip:hover{color:#fff;border-color:rgba(47,227,176,.5);background:rgba(47,227,176,.1);transform:translateY(-1px);}
.chip.is-active{
  color:#04212A;font-weight:650;
  background:linear-gradient(135deg,#2FE3B0,#1FB48C);border-color:transparent;
  box-shadow:0 8px 22px rgba(47,227,176,.26);
}

/* ===== 图文条目 + 编号刻度 ===== */
.topic-list{display:grid;gap:22px;}
.topic-item{
  display:grid;grid-template-columns:300px 1fr;gap:0;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(130%);-webkit-backdrop-filter:blur(14px) saturate(130%);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.topic-item:hover{transform:translateY(-4px);border-color:rgba(47,227,176,.5);box-shadow:0 0 0 1px rgba(47,227,176,.2),0 26px 52px rgba(0,0,0,.45);}
.topic-thumb{position:relative;min-height:230px;background:var(--ink-700);}
.topic-thumb img{width:100%;height:100%;object-fit:cover;}
.topic-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,12,24,0) 42%,rgba(6,12,24,.86));
}
.topic-body{padding:26px 30px;display:flex;flex-direction:column;}
.topic-no{
  font-family:var(--mono);font-size:12px;letter-spacing:.22em;color:var(--mint);
  display:flex;align-items:center;gap:12px;
}
.topic-no::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,rgba(47,227,176,.5),transparent);max-width:120px;}
.topic-body h3{font-size:19px;margin:12px 0 10px;}
.topic-body p{color:var(--muted);font-size:15px;margin:0 0 16px;}
.topic-meta{
  margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.06em;
}
.topic-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(159,179,200,.6);}

/* ===== 频道矩阵 ===== */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.channel-card{
  display:block;padding:26px;border-radius:var(--radius);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  color:var(--text);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
}
.channel-card:hover{
  transform:translateY(-4px);color:var(--text);
  border-color:rgba(47,227,176,.5);background:rgba(47,227,176,.07);
  box-shadow:0 0 0 1px rgba(47,227,176,.2),0 20px 44px rgba(0,0,0,.4);
}
.channel-card h3{font-size:17px;margin:14px 0 8px;}
.channel-card p{color:var(--muted);font-size:14px;margin:0;}
.channel-arrow{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:50%;background:rgba(47,227,176,.14);color:var(--mint);font-size:13px;
}

/* ===== 守护清单 ===== */
.guard-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:start;}
.guard-list{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
.guard-list li{
  display:flex;gap:16px;padding:18px 20px;border-radius:14px;
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.guard-list li:hover{border-color:rgba(47,227,176,.5);background:rgba(47,227,176,.07);transform:translateX(3px);}
.guard-mark{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(47,227,176,.14);color:var(--mint);font-size:14px;
  border:1px solid rgba(47,227,176,.35);
}
.guard-list h3{font-size:16px;margin:0 0 6px;}
.guard-list p{color:var(--muted);font-size:14px;margin:0;}
.guard-aside{
  background:var(--glass-2);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.guard-aside h3{font-size:18px;margin-bottom:12px;}
.guard-aside p{color:var(--muted);font-size:14.5px;}
.guard-aside .btn{margin-top:10px;width:100%;}

/* ===== 三步流程 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step{
  position:relative;padding:28px 24px;border-radius:var(--radius);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(47,227,176,.5);box-shadow:0 0 0 1px rgba(47,227,176,.18),0 22px 46px rgba(0,0,0,.4);}
.step-no{
  font-family:var(--mono);font-size:13px;letter-spacing:.2em;color:var(--azure);margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{color:var(--muted);font-size:14.5px;margin:0;}

/* ===== 标签云 ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag-cloud .chip{font-family:var(--mono);letter-spacing:.06em;}

/* ===== 最新发布 ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{
  display:flex;flex-direction:column;padding:26px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.post-card:hover{
  transform:translateY(-4px);color:var(--text);
  border-color:rgba(47,227,176,.5);
  box-shadow:0 0 0 1px rgba(47,227,176,.2),0 24px 50px rgba(0,0,0,.44);
}
.post-card h3{font-size:17px;margin:14px 0 10px;}
.post-card p{color:var(--muted);font-size:14px;margin:0 0 18px;}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.06em;
}
.post-meta .more{color:var(--mint);}
.empty-state{
  text-align:center;padding:48px 24px;border-radius:var(--radius);
  border:1px dashed var(--line);background:rgba(255,255,255,.025);color:var(--muted);
}
.empty-state i{display:block;font-size:26px;color:var(--azure);margin-bottom:14px;}

/* ===== FAQ ===== */
.faq-list{max-width:820px;display:grid;gap:14px;}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:rgba(47,227,176,.45);background:rgba(28,54,82,.6);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;font-weight:600;font-size:16px;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--mono);font-size:19px;color:var(--mint);
  transition:transform .25s ease;line-height:1;
}
.faq-item[open] summary::after{content:"–";transform:rotate(180deg);}
.faq-item .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:15px;}

/* ===== 收口 CTA ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:52px 44px;
  background:
    radial-gradient(620px 300px at 88% 10%, rgba(47,227,176,.22), transparent 62%),
    linear-gradient(120deg,#0B1B33 0%,#123A5E 55%,#0E2A44 100%);
  border:1px solid rgba(47,227,176,.34);
  box-shadow:0 0 0 1px rgba(47,227,176,.12),0 24px 60px rgba(0,0,0,.45);
  display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-band p{color:rgba(232,241,251,.8);margin:0 0 22px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-side{
  border:1px solid rgba(120,200,255,.26);border-radius:var(--radius);
  padding:22px;background:rgba(6,12,24,.42);text-align:center;
}
.cta-side .num{font-family:var(--mono);font-size:26px;color:var(--mint);letter-spacing:.05em;}
.cta-side .lbl{font-size:12.5px;color:var(--muted);letter-spacing:.1em;}

/* ===== 页脚 ===== */
.site-footer{
  background:linear-gradient(180deg,#050A14 0%,#03070F 100%);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:8px;
}
.footer-grid{display:block;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:16px;color:#fff;}
.footer-desc{color:var(--muted);font-size:14px;max-width:280px;margin-bottom:18px;}
.social-row{display:flex;gap:10px;}
.social-row a{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:10px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--muted);font-size:14px;transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.social-row a:hover{color:var(--mint);border-color:rgba(47,227,176,.5);background:rgba(47,227,176,.1);}
.site-footer h4{font-size:14px;letter-spacing:.08em;color:#fff;margin-bottom:16px;}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-links a{color:var(--muted);font-size:14px;}
.footer-links a:hover{color:var(--mint);}
.footer-contact{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
.footer-contact li{display:flex;gap:10px;color:var(--muted);font-size:13.5px;line-height:1.7;}
.footer-contact i{color:var(--mint);margin-top:5px;flex-shrink:0;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding:22px 0;margin-top:24px;border-top:1px solid var(--line-2);
  font-size:13px;color:var(--muted);
}
.footer-bottom p{margin:0;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .section{padding:68px 0;}
  .guard-grid{grid-template-columns:1fr;}
  .channel-grid{grid-template-columns:repeat(2,1fr);}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;}
}
@media (max-width:980px){
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .brand-sub{display:none;}
  .site-nav{
    position:absolute;top:72px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    margin-left:0;padding:12px 16px 20px;
    background:linear-gradient(160deg,#0B1B33,#0E2A44);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 50px rgba(0,0,0,.5);
    display:none;
  }
  .site-nav.is-open{display:flex;}
  .site-nav a{height:46px;padding:0 14px;}
  .site-nav a::after{left:14px;right:14px;bottom:6px;}
  .nav-mobile-cta{
    display:inline-flex;justify-content:center;margin-top:10px;
    background:linear-gradient(135deg,#2FE3B0,#1FB48C);color:#04212A;
    border-radius:999px;font-weight:650;
  }
  .nav-mobile-cta:hover{color:#04212A;background:linear-gradient(135deg,#5CF2C8,#25C99B);}
  .nav-mobile-cta::after{display:none;}
}
@media (max-width:768px){
  .cat-hero{padding:40px 0 36px;}
  .topic-item{grid-template-columns:1fr;}
  .topic-thumb{min-height:190px;}
  .topic-body{padding:22px;}
  .channel-grid{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .footer-desc{max-width:none;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .cat-hero h1{font-size:26px;}
  .cat-sub{font-size:15px;}
  .filter-bar .chip{min-height:38px;padding:0 14px;font-size:13px;}
  .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .guard-list li{padding:16px;}
  .topic-body{padding:20px 18px;}
  .cta-band{padding:32px 22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}