/* roulang page: index */
:root{
  --bg:#05080F;
  --bg-2:#0A1020;
  --panel:#101829;
  --brand:#2ED3FF;
  --brand-deep:#0B57C7;
  --violet:#7A5CFF;
  --amber:#FFC53D;
  --text:#EAF2FF;
  --text-2:#9FB3D1;
  --text-3:#6B7C99;
  --ok:#38E8A8;
  --line:rgba(120,190,255,0.14);
  --line-strong:rgba(46,211,255,0.4);
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --sh-near:0 2px 8px rgba(0,0,0,.4);
  --sh-mid:0 12px 32px -12px rgba(0,0,0,.6);
  --sh-glow:0 0 24px rgba(46,211,255,.35);
  --pad-section:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:72px;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(46,211,255,.015) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,211,255,.015) 1px,transparent 1px);
  background-size:8px 8px;
}
body.no-scroll{overflow:hidden;}
.mono{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;font-variant-numeric:tabular-nums;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease-out;}
a:hover{color:#7FE3FF;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 40px;position:relative;z-index:1;}
.container-wide{max-width:1320px;margin:0 auto;padding:0 40px;position:relative;z-index:1;}
.grid-x.grid-margin-x > .cell{margin-bottom:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s ease-out,box-shadow .24s ease-out,background-color .24s ease-out,filter .24s ease-out,border-color .24s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#2ED3FF,#0B57C7);
  color:#05080F;
  box-shadow:0 0 0 1px rgba(46,211,255,.35),0 10px 30px -8px rgba(46,211,255,.55);
}
.btn-primary:hover{color:#05080F;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(46,211,255,.55),0 16px 40px -10px rgba(46,211,255,.7);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.35);}
.btn-ghost{
  background:transparent;color:var(--text);border-color:rgba(46,211,255,.5);
}
.btn-ghost:hover{background:rgba(46,211,255,.12);color:#EAF2FF;border-color:rgba(46,211,255,.75);box-shadow:0 0 18px rgba(46,211,255,.22);}
.btn-text{
  background:none;border:none;padding:6px 2px;color:var(--text-2);font-size:14px;font-weight:500;cursor:pointer;
  border-bottom:1px solid transparent;border-radius:0;
}
.btn-text:hover{color:var(--brand);border-bottom-color:var(--brand);text-shadow:0 0 12px rgba(46,211,255,.5);}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.nav-top{
  background:rgba(10,16,32,.86);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-icon{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(46,211,255,.28),rgba(122,92,255,.22));
  border:1px solid rgba(46,211,255,.35);
  color:var(--brand);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{display:flex;flex-direction:column;line-height:1.14;}
.brand-line1{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.brand-line2{font-size:11px;font-weight:500;letter-spacing:.14em;color:var(--brand);}
.nav-search{
  flex:1 1 auto;max-width:460px;position:relative;display:flex;align-items:center;
}
.nav-search .search-icon{position:absolute;left:14px;color:var(--text-3);pointer-events:none;}
.nav-search input{
  width:100%;height:42px;padding:0 16px 0 42px;
  background:rgba(16,24,41,.7);
  border:1px solid var(--line);border-radius:var(--r-input);
  color:var(--text);font-size:14px;margin:0;
  transition:border-color .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{
  outline:none;border-color:var(--brand);background:rgba(16,24,41,.95);
  box-shadow:0 0 0 2px rgba(46,211,255,.35),0 0 22px rgba(46,211,255,.22);
}
.nav-cta{flex:0 0 auto;padding:11px 22px;font-size:14px;}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  background:rgba(16,24,41,.7);border:1px solid var(--line);
  padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .22s ease-out,opacity .22s ease-out;}
.nav-burger:hover{border-color:var(--line-strong);}
.nav-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.nav-tabs{
  background:rgba(5,8,15,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.tabs-scroll{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.tabs-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;position:relative;
  padding:6px 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text-2);
  border:1px solid transparent;
  transition:color .22s ease-out,border-color .22s ease-out,background-color .22s ease-out;
}
.pill:hover{color:var(--text);background:rgba(46,211,255,.08);border-color:var(--line);}
.pill.is-active{color:var(--text);border-color:rgba(46,211,255,.5);background:rgba(46,211,255,.08);}
.pill.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(46,211,255,.8);}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(5,8,15,.7);z-index:80;opacity:0;transition:opacity .22s ease-out;}
.drawer-mask.show{opacity:1;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:90;
  background:var(--bg-2);border-left:1px solid var(--line);
  padding:22px 22px 32px;overflow-y:auto;
  transform:translateX(102%);transition:transform .28s ease-out;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:36px;height:36px;border-radius:10px;background:rgba(16,24,41,.8);border:1px solid var(--line);color:var(--text-2);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;}
.drawer-close:hover{color:var(--brand);border-color:var(--line-strong);}
.drawer-search{margin-bottom:20px;}
.drawer-search input{
  width:100%;height:42px;padding:0 14px;background:rgba(16,24,41,.9);
  border:1px solid var(--line);border-radius:var(--r-input);color:var(--text);font-size:14px;
}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(46,211,255,.3);}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-links a{
  padding:11px 12px;border-radius:10px;color:var(--text-2);font-size:15px;
  border:1px solid transparent;transition:all .2s ease-out;
}
.drawer-links a:hover{color:var(--text);background:rgba(46,211,255,.08);border-color:var(--line);}
.drawer-links a.is-active{color:var(--text);border-color:rgba(46,211,255,.45);background:rgba(46,211,255,.1);}
.drawer-cta{width:100%;}

/* ---------- 板块 ---------- */
.section{padding:var(--pad-section) 0;position:relative;}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
section[id]{scroll-margin-top:132px;}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-label{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.sec-label .num{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.08em;}
.sec-label .txt{font-size:13px;color:var(--text-3);letter-spacing:.16em;}
.sec-label .bar{flex:1 1 auto;height:1px;background:linear-gradient(90deg,var(--line-strong),transparent);}
.sec-title{font-size:34px;line-height:1.25;font-weight:700;margin:0 0 14px;letter-spacing:-.01em;color:var(--text);}
.sec-desc{font-size:15.5px;line-height:1.85;color:var(--text-2);margin:0;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 84px;}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(900px 520px at 12% -10%,rgba(46,211,255,.16),transparent 62%),
    radial-gradient(700px 460px at 92% 8%,rgba(122,92,255,.16),transparent 65%),
    linear-gradient(180deg,rgba(11,87,199,.16),rgba(5,8,15,0));
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:repeating-linear-gradient(180deg,rgba(46,211,255,.03) 0 1px,transparent 1px 5px);
  opacity:.9;
}
.hero .container-wide{position:relative;z-index:1;}
.hero-grid{align-items:center;}
.hero-title{
  font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.01em;
  margin:0 0 18px;color:var(--text);
}
.hero-title .hl{
  background:linear-gradient(120deg,#2ED3FF,#7A5CFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);margin:0 0 30px;max-width:540px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.trust-bar{
  display:flex;align-items:stretch;gap:0;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:22px;
}
.trust-item{padding:0 22px;border-left:1px solid var(--line);}
.trust-item:first-child{padding-left:0;border-left:none;}
.trust-num{display:block;font-size:26px;font-weight:600;color:var(--text);line-height:1.2;}
.trust-num em{font-style:normal;font-size:13px;color:var(--text-3);margin-left:4px;}
.trust-label{display:block;font-size:12.5px;color:var(--text-3);margin-top:2px;}
.hero-visual{position:relative;}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:4/3;
  box-shadow:var(--sh-mid);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.35),rgba(5,8,15,.92));}
.hero-media-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:13px;color:var(--text);
  background:rgba(5,8,15,.7);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.dot-ok{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px rgba(56,232,168,.8);flex:0 0 auto;}

/* ---------- 玻璃卡 ---------- */
.glass{
  background:linear-gradient(160deg,rgba(46,211,255,.08),rgba(10,16,32,.72));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--sh-mid);
}
.feature-lead{padding:32px;height:100%;display:flex;flex-direction:column;gap:18px;}
.feature-lead .icon-box{
  width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(46,211,255,.2),rgba(122,92,255,.16));
  border:1px solid rgba(46,211,255,.3);color:var(--brand);
}
.feature-lead h3{font-size:22px;line-height:1.4;font-weight:600;margin:0;color:var(--text);}
.feature-lead p{margin:0;color:var(--text-2);font-size:15.5px;}
.lead-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--line);padding-top:18px;}
.lead-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text-2);}
.lead-list svg{flex:0 0 auto;margin-top:4px;color:var(--brand);}
.feature-stack{display:flex;flex-direction:column;gap:24px;height:100%;}
.feature-side{padding:24px;flex:1 1 auto;display:flex;flex-direction:column;gap:10px;transition:transform .24s ease-out,border-color .24s ease-out;}
.feature-side:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.feature-side .icon-box{
  width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:rgba(122,92,255,.16);border:1px solid rgba(122,92,255,.34);color:#B8A6FF;
}
.feature-side h3{font-size:18px;line-height:1.4;font-weight:600;margin:0;color:var(--text);}
.feature-side p{margin:0;font-size:14.5px;color:var(--text-2);}

/* ---------- 演示 ---------- */
.browser-mock{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  background:rgba(10,16,32,.85);box-shadow:var(--sh-mid);
}
.browser-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:rgba(16,24,41,.8);}
.browser-bar i{width:10px;height:10px;border-radius:50%;background:rgba(120,190,255,.22);display:block;}
.browser-bar i:nth-child(1){background:rgba(255,197,61,.5);}
.browser-bar i:nth-child(2){background:rgba(122,92,255,.5);}
.browser-bar i:nth-child(3){background:rgba(46,211,255,.5);}
.browser-url{
  flex:1 1 auto;margin-left:8px;height:26px;display:flex;align-items:center;padding:0 12px;
  border-radius:6px;background:rgba(5,8,15,.7);border:1px solid var(--line);
  font-size:12px;color:var(--text-3);overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
}
.browser-body{aspect-ratio:16/9;overflow:hidden;}
.browser-body img{width:100%;height:100%;object-fit:cover;}
.steps{margin-top:40px;}
.step-item{position:relative;padding-right:24px;}
.step-dot{
  width:14px;height:14px;border-radius:50%;background:var(--bg);
  border:2px solid var(--brand);box-shadow:0 0 14px rgba(46,211,255,.7);
  margin-bottom:18px;
}
.step-rail{position:absolute;left:6px;top:7px;right:-14px;height:1px;background:linear-gradient(90deg,rgba(46,211,255,.5),rgba(46,211,255,.05));}
.step-item:last-child .step-rail{display:none;}
.step-num{display:block;font-size:13px;color:var(--brand);letter-spacing:.1em;margin-bottom:8px;}
.step-title{font-size:19px;font-weight:600;margin:0 0 8px;color:var(--text);line-height:1.4;}
.step-text{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ---------- 数据与评价 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-bottom:48px;
}
.stat-item{background:var(--panel);padding:24px 20px;text-align:center;}
.stat-value{display:block;font-size:30px;font-weight:600;color:var(--text);line-height:1.15;}
.stat-value .unit{font-size:13px;color:var(--text-3);margin-left:4px;font-style:normal;}
.stat-label{display:block;font-size:13px;color:var(--text-3);margin-top:6px;}
.review-card{padding:26px;display:flex;flex-direction:column;gap:14px;transition:transform .24s ease-out,border-color .24s ease-out;}
.review-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.review-card:nth-child(2){margin-top:26px;}
.review-card:nth-child(3){margin-top:10px;}
.stars{display:flex;gap:3px;color:var(--amber);}
.review-text{margin:0;font-size:15px;line-height:1.85;color:var(--text-2);}
.review-meta{display:flex;align-items:center;gap:10px;border-top:1px solid var(--line);padding-top:14px;margin-top:auto;}
.avatar{
  width:34px;height:34px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(46,211,255,.24),rgba(122,92,255,.2));
  border:1px solid var(--line);font-size:13px;color:var(--text);font-weight:600;flex:0 0 auto;
}
.review-name{font-size:13.5px;color:var(--text);display:block;line-height:1.4;}
.review-role{font-size:12px;color:var(--text-3);display:block;}

/* ---------- 最新信息 ---------- */
.news-lead{
  display:grid;grid-template-columns:1.05fr 1fr;gap:0;overflow:hidden;
  margin-bottom:28px;transition:border-color .24s ease-out;
}
.news-lead:hover{border-color:var(--line-strong);}
.news-lead-media{aspect-ratio:16/10;overflow:hidden;background:var(--panel);}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease-out;}
.news-lead:hover .news-lead-media img{transform:scale(1.03);}
.news-lead-body{padding:30px;}
.news-lead-body h3{font-size:24px;line-height:1.4;font-weight:600;margin:14px 0 12px;color:var(--text);}
.news-lead-body p{margin:0 0 18px;color:var(--text-2);font-size:15px;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;overflow:hidden;transition:transform .24s ease-out,border-color .24s ease-out;}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.news-cover{aspect-ratio:16/10;overflow:hidden;background:var(--panel);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease-out;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.news-body h3{
  font-size:17.5px;line-height:1.5;font-weight:600;margin:0;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  margin:0;font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  font-size:12px;font-weight:500;color:#C3B6FF;background:rgba(122,92,255,.12);
  border:1px solid rgba(122,92,255,.28);white-space:nowrap;
}
.tag.tag-brand{color:var(--brand);background:rgba(46,211,255,.1);border-color:rgba(46,211,255,.28);}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);padding-top:12px;margin-top:auto;
}
.meta-time{font-size:12.5px;color:var(--text-3);}
.news-link{font-size:13px;color:var(--brand);display:inline-flex;align-items:center;gap:5px;}
.news-link:hover{color:#7FE3FF;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
  background:rgba(16,24,41,.4);
}
.empty-state svg{color:var(--text-3);}
.empty-state p{margin:0;font-size:14px;color:var(--text-2);}

/* ---------- 方案 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.plan-card{padding:30px 26px;display:flex;flex-direction:column;gap:16px;position:relative;transition:transform .24s ease-out,border-color .24s ease-out;}
.plan-card:hover{transform:translateY(-4px);}
.plan-card.is-recommend{
  border-color:rgba(46,211,255,.5);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 0 26px rgba(46,211,255,.22),var(--sh-mid);
  margin-top:-6px;
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
}
.badge-amber{
  position:absolute;top:14px;right:14px;padding:3px 10px;border-radius:999px;
  font-size:12px;font-weight:600;color:#2A1E00;background:var(--amber);
}
.plan-num{font-size:13px;color:var(--text-3);letter-spacing:.1em;}
.plan-name{font-size:20px;font-weight:600;margin:0;color:var(--text);}
.plan-price{display:flex;align-items:baseline;gap:8px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.plan-price .big{font-size:38px;font-weight:600;line-height:1;color:var(--text);}
.plan-price .small{font-size:13px;color:var(--text-3);}
.plan-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7;}
.plan-list svg{flex:0 0 auto;margin-top:5px;color:var(--brand);}
.plan-note{font-size:12.5px;color:var(--text-3);margin:22px 0 0;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{overflow:hidden;transition:border-color .24s ease-out;position:relative;}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  opacity:0;transition:opacity .24s ease-out;box-shadow:0 0 14px rgba(46,211,255,.7);
}
.faq-item.open{border-color:rgba(46,211,255,.45);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;background:none;border:none;cursor:pointer;color:var(--text);
  font-size:16.5px;font-weight:500;line-height:1.6;margin:0;
}
.faq-q .idx{font-size:13px;color:var(--brand);letter-spacing:.08em;flex:0 0 auto;}
.faq-q .txt{flex:1 1 auto;}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--brand);
  transition:transform .24s ease-out;
}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a-inner{padding:0 24px 22px 58px;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-a-inner p{margin:0 0 10px;}
.faq-a-inner p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;padding:72px 0;border-top:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(11,87,199,.35),rgba(46,211,255,.14) 55%,rgba(122,92,255,.1)),
    var(--bg-2);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(46,211,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,211,255,.04) 1px,transparent 1px);
  background-size:32px 32px;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-text h2{font-size:30px;font-weight:700;margin:0 0 10px;color:var(--text);line-height:1.3;}
.cta-text p{margin:0;font-size:15.5px;color:var(--text-2);max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{padding-bottom:44px;}
.footer-brand p{margin:14px 0 0;font-size:14px;color:var(--text-3);line-height:1.85;max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin:0 0 16px;letter-spacing:.04em;}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-links a,.footer-links span{font-size:13.5px;color:var(--text-3);}
.footer-links a:hover{color:var(--brand);}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:var(--text-3);line-height:1.7;}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;text-align:center;
  font-size:13px;color:var(--text-3);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:flex;align-items:center;gap:10px;
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-top{
  width:44px;height:44px;border-radius:999px;padding:0;cursor:pointer;
  background:rgba(16,24,41,.9);border:1px solid var(--line);color:var(--text-2);
  display:flex;align-items:center;justify-content:center;
  transition:border-color .22s ease-out,color .22s ease-out,transform .22s ease-out;
}
.float-top:hover{border-color:var(--line-strong);color:var(--brand);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container,.container-wide{padding:0 40px;}
}
@media (max-width:1199px){
  :root{--pad-section:72px;}
  .hero-title{font-size:40px;}
  .sec-title{font-size:28px;}
  .news-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .container,.container-wide{padding:0 32px;}
  .nav-search{max-width:260px;}
  .hero{padding:56px 0 64px;}
  .hero-title{font-size:40px;}
  .hero-visual{margin-top:36px;}
  .plan-grid{grid-template-columns:repeat(2,1fr);}
  .plan-card.is-recommend{margin-top:0;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-lead{grid-template-columns:1fr;}
  .steps .step-item{margin-bottom:32px;}
}
@media (max-width:767px){
  :root{--pad-section:56px;}
  .container,.container-wide{padding:0 20px;}
  .nav-top-inner{height:56px;gap:12px;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .nav-burger{display:flex;}
  .tabs-scroll{height:44px;scroll-snap-type:x proximity;}
  .pill{scroll-snap-align:start;}
  .hero-title{font-size:32px;}
  .hero-sub{font-size:15.5px;}
  .hero-cta .btn{width:100%;}
  .trust-item{width:50%;padding:0 12px;margin-bottom:16px;border-left:none;}
  .trust-item:nth-child(odd){padding-left:0;}
  .sec-title{font-size:24px;}
  .feature-lead{padding:24px;}
  .feature-lead h3{font-size:19px;}
  .news-grid{grid-template-columns:1fr;}
  .news-lead-body{padding:22px;}
  .news-lead-body h3{font-size:20px;}
  .plan-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a-inner{padding:0 18px 18px 18px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-text h2{font-size:24px;}
  .cta-inner .btn{width:100%;}
  section[id]{scroll-margin-top:116px;}
  .float-cta{
    left:0;right:0;bottom:0;padding:10px 20px calc(10px + env(safe-area-inset-bottom));
    background:rgba(5,8,15,.92);border-top:1px solid var(--line);
    backdrop-filter:blur(12px);gap:10px;
  }
  .float-cta .btn{flex:1 1 auto;height:44px;padding:0 18px;}
  .float-top{width:44px;height:44px;}
  .review-grid-mobile{display:flex;overflow-x:auto;gap:16px;scroll-snap-type:x mandatory;padding-bottom:8px;}
  .review-grid-mobile::-webkit-scrollbar{display:none;}
  .review-grid-mobile .review-card{min-width:82%;scroll-snap-align:center;margin-top:0;}
}
@media (max-width:519px){
  .trust-num{font-size:22px;}
  .stat-value{font-size:24px;}
  .browser-url{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg:#05080F;
  --bg-soft:#0A1020;
  --panel:#101829;
  --cyan:#2ED3FF;
  --blue:#0B57C7;
  --violet:#7A5CFF;
  --amber:#FFC53D;
  --text:#EAF2FF;
  --text-2:#9FB3D1;
  --text-3:#6B7C99;
  --ok:#38E8A8;
  --line:rgba(120,190,255,.14);
  --line-strong:rgba(46,211,255,.4);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(0,0,0,.4);
  --sh-2:0 12px 32px -12px rgba(0,0,0,.6);
  --sh-glow:0 0 24px rgba(46,211,255,.35);
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --pad:40px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:0;
  background-image:
    linear-gradient(rgba(46,211,255,.015) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,211,255,.015) 1px,transparent 1px);
  background-size:8px 8px;
  padding-bottom:72px;
}
img{max-width:100%;display:block;border:0}
svg{display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out}
a:hover{color:#8AE6FF}
button,input{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}
.mono{font-family:var(--mono);font-feature-settings:"tnum";letter-spacing:.02em}
.container{max-width:1200px;margin:0 auto;padding:0 var(--pad)}
.container-wide{max-width:1320px;margin:0 auto;padding:0 var(--pad)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,#2ED3FF,#0B57C7);
  color:#05080F;
  box-shadow:0 0 0 1px rgba(46,211,255,.35),0 10px 30px -8px rgba(46,211,255,.55);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);color:#05080F;box-shadow:0 0 0 1px rgba(46,211,255,.5),0 16px 38px -10px rgba(46,211,255,.65)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(5,8,15,.45)}
.btn-ghost{background:transparent;border-color:rgba(46,211,255,.45);color:var(--text)}
.btn-ghost:hover{background:rgba(46,211,255,.12);color:var(--text);box-shadow:0 0 18px rgba(46,211,255,.22)}
.btn-text{background:none;border:0;padding:0;height:auto;color:var(--cyan);font-weight:600}
.btn-text:hover{border-bottom:1px solid var(--cyan);color:#8AE6FF}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:13px;line-height:1;font-weight:500;
}
.tag-violet{background:rgba(122,92,255,.12);color:#B9A9FF}
.tag-cyan{background:rgba(46,211,255,.1);color:var(--cyan)}
.tag-amber{background:rgba(255,197,61,.12);color:var(--amber)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,8,15,.84);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-top{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-icon{
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:var(--cyan);background:linear-gradient(140deg,rgba(46,211,255,.18),rgba(10,16,32,.8));
  border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-line1{font-size:16px;font-weight:800;letter-spacing:.01em}
.brand-line2{font-size:11.5px;color:var(--text-3);letter-spacing:.18em}
.header-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;
  height:40px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(16,24,41,.7);border:1px solid var(--line);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.header-search svg{color:var(--text-3);flex:0 0 auto}
.header-search input{
  flex:1 1 auto;background:transparent;border:0;outline:none;height:100%;
  color:var(--text);font-size:14.5px;
}
.header-search input::placeholder{color:var(--text-3)}
.header-search:focus-within{border-color:var(--cyan);box-shadow:0 0 0 2px rgba(46,211,255,.35)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.hamburger{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:rgba(16,24,41,.7);color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}
.hamburger:hover{border-color:var(--line-strong)}

.nav-tabs{border-top:1px solid var(--line);background:rgba(10,16,32,.55)}
.tabs-scroll{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x proximity;
}
.tabs-scroll::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 15px;border-radius:999px;
  font-size:14px;color:var(--text-2);background:rgba(16,24,41,.6);
  border:1px solid transparent;scroll-snap-align:start;
  transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out;
}
.pill:hover{color:var(--text);background:rgba(46,211,255,.1);border-color:var(--line)}
.pill.is-active{
  color:var(--text);border-color:var(--line-strong);
  background:rgba(46,211,255,.12);box-shadow:0 2px 0 0 var(--cyan),0 0 18px rgba(46,211,255,.28);
}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,8,15,.7);opacity:0;visibility:hidden;
  transition:opacity .2s ease-out,visibility .2s ease-out;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:290px;max-width:86vw;z-index:95;
  background:var(--bg-soft);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .24s ease-out;
  padding:22px 20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-title{font-size:13px;letter-spacing:.16em;color:var(--text-3);margin-bottom:12px}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:var(--r-btn);color:var(--text-2);
  background:rgba(16,24,41,.6);border:1px solid var(--line);font-size:15px;
}
.drawer-links a:hover{color:var(--text);border-color:var(--line-strong);background:rgba(46,211,255,.1)}
.drawer-close{
  position:absolute;top:16px;right:16px;width:34px;height:34px;border-radius:999px;
  background:rgba(16,24,41,.8);border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.drawer .header-search{max-width:none;margin-bottom:20px}

/* ============ 面包屑 ============ */
.breadcrumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);max-width:900px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:rgba(107,124,153,.6)}
.breadcrumb .current{color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:420px}

/* ============ 文章头部 ============ */
.article-hero{padding:26px 0 42px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(46,211,255,.06),rgba(5,8,15,0) 70%);
}
.article-hero .container-wide{position:relative;z-index:2}
.article-title{
  max-width:880px;font-size:40px;line-height:1.22;font-weight:800;letter-spacing:-.01em;
  padding-left:18px;border-left:3px solid var(--cyan);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;font-size:14px;color:var(--text-2)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta svg{color:var(--cyan)}
.meta-dot{width:1px;height:16px;background:var(--line);display:inline-block}

/* ============ 正文布局 ============ */
.article-main{padding:48px 0 72px}
.article-layout{align-items:flex-start}

.panel{
  background:linear-gradient(160deg,rgba(46,211,255,.08),rgba(10,16,32,.72));
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
}
.article-body{
  max-width:760px;font-size:17.5px;line-height:1.9;color:var(--text);
  word-break:break-word;
}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:26px;line-height:1.35;margin:2em 0 .6em;
  padding-left:14px;border-left:3px solid var(--cyan);scroll-margin-top:132px;
}
.article-body h3{font-size:20px;line-height:1.4;margin:1.8em 0 .6em;scroll-margin-top:132px;color:#D8E7FF}
.article-body h4{font-size:17.5px;margin:1.4em 0 .5em;color:var(--text-2)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;line-height:1.8}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.35em 0}
.article-body li::marker{color:var(--cyan)}
.article-body strong{color:#fff;font-weight:700}
.article-body a{color:var(--cyan);border-bottom:1px solid transparent}
.article-body a:hover{border-bottom-color:var(--cyan)}
.article-body blockquote{
  margin:1.4em 0;padding:15px 18px;border-left:3px solid var(--cyan);border-radius:0 12px 12px 0;
  background:rgba(46,211,255,.06);color:var(--text-2);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.4em auto}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body .table-wrap{overflow-x:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:12px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body th,.article-body td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-body thead th{background:rgba(46,211,255,.07);color:var(--text);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(46,211,255,.04)}
.article-body pre{
  background:#05080F;border:1px solid var(--line);border-radius:12px;
  padding:16px;overflow-x:auto;font-family:var(--mono);font-size:14px;line-height:1.75;margin:1.4em 0;
}
.article-body code{font-family:var(--mono);font-size:.9em;background:rgba(46,211,255,.08);padding:2px 6px;border-radius:6px}
.article-body pre code{background:none;padding:0;font-size:13.5px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* 侧栏 */
.article-side{position:relative}
.side-inner{position:sticky;top:140px;display:flex;flex-direction:column;gap:18px}
.side-panel{padding:20px 22px}
.side-title{font-size:13px;letter-spacing:.16em;color:var(--text-3);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:14px;height:2px;background:var(--cyan);border-radius:2px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow-y:auto}
.toc-link{
  display:block;padding:8px 12px;border-radius:8px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;line-height:1.5;
  transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out;
}
.toc-link.toc-sub{padding-left:26px;font-size:13.5px;color:var(--text-3)}
.toc-link:hover{color:var(--text);background:rgba(46,211,255,.07)}
.toc-link.is-current{color:var(--text);border-left-color:var(--cyan);background:rgba(46,211,255,.1)}
.toc-empty{font-size:13px;color:var(--text-3)}
.side-links{display:flex;flex-direction:column;gap:8px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:10px;font-size:14.5px;color:var(--text-2);
  background:rgba(16,24,41,.6);border:1px solid var(--line);
}
.side-links a:hover{color:var(--text);border-color:var(--line-strong);background:rgba(46,211,255,.1)}
.side-links a span{color:var(--text-3);font-family:var(--mono);font-size:12.5px}

/* 空态 */
.empty-state{
  max-width:760px;padding:52px 30px;text-align:center;border-radius:var(--r-card);
  border:1px dashed var(--line-strong);background:rgba(16,24,41,.55);
}
.empty-state .icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  color:var(--cyan);background:rgba(46,211,255,.1);border:1px solid var(--line);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{font-size:14.5px;color:var(--text-2);margin-bottom:22px}

/* ============ 文末区 ============ */
.end-section{padding:64px 0 0;border-top:1px solid var(--line);margin-top:64px}
.section-head{margin-bottom:34px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.16em;color:var(--text-3);margin-bottom:12px}
.eyebrow .num{font-family:var(--mono);color:var(--cyan);font-weight:600}
.section-head h2{font-size:28px;line-height:1.3}
.section-head .desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:720px}

.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(46,211,255,.08),rgba(10,16,32,.72));
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2)}
.rel-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.rel-card:hover .rel-cover img{transform:scale(1.03)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.rel-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body h3 a{color:var(--text)}
.rel-body h3 a:hover{color:var(--cyan)}
.rel-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}

.pager-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.pager-row .btn{flex:1 1 220px;justify-content:space-between;padding:0 18px}
.ghost-row{margin-top:18px}

/* FAQ */
.faq-section{padding:80px 0 0}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:rgba(16,24,41,.62);overflow:hidden;position:relative;
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background-color .2s ease-out}
.faq-item[open]{border-color:var(--line-strong);background:rgba(46,211,255,.06)}
.faq-item[open]::before{background:var(--cyan)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .num{font-family:var(--mono);font-size:13px;color:var(--cyan)}
.faq-item summary .ico{
  margin-left:auto;width:22px;height:22px;flex:0 0 auto;position:relative;color:var(--cyan);
}
.faq-item summary .ico::before,.faq-item summary .ico::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-item summary .ico::before{width:12px;height:1.6px}
.faq-item summary .ico::after{width:1.6px;height:12px}
.faq-item[open] summary .ico::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{padding:0 22px 20px 56px;font-size:15px;color:var(--text-2);line-height:1.8}

/* CTA 转换条 */
.cta-strip{padding:80px 0 0}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(110deg,rgba(11,87,199,.34),rgba(46,211,255,.14) 55%,rgba(122,92,255,.18));
  padding:52px 44px;text-align:center;
}
.cta-inner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(46,211,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(46,211,255,.06) 1px,transparent 1px);
  background-size:22px 22px;opacity:.55;
}
.cta-inner>*{position:relative;z-index:2}
.cta-inner h2{font-size:30px;line-height:1.3}
.cta-inner p{margin:14px auto 26px;font-size:15.5px;color:#C6D8F2;max-width:620px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;background:var(--bg-soft);border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{row-gap:34px}
.footer-brand .brand{margin-bottom:16px;cursor:default}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--cyan)}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--text-2)}
.footer-contact svg{margin-top:5px;color:var(--cyan);flex:0 0 auto}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  text-align:center;font-size:13px;color:var(--text-3);
}

/* 浮动 CTA */
.float-bar{
  position:fixed;right:28px;bottom:28px;z-index:70;display:flex;align-items:center;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out;
}
.float-bar.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-bar .btn{padding:0 22px}
.float-icon{
  width:44px;height:44px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(16,24,41,.85);color:var(--text);cursor:pointer;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.float-icon:hover{border-color:var(--line-strong);color:var(--cyan)}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  :root{--pad:32px}
  .header-search{display:none}
  .hamburger{display:flex}
  .article-title{font-size:32px}
  .article-side .side-inner{position:static}
  .side-panel{padding:18px}
  .toc-list{max-height:none}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .faq-answer{padding-left:22px}
  .cta-inner{padding:44px 28px}
  .cta-inner h2{font-size:26px}
}
@media screen and (max-width:767px){
  :root{--pad:20px}
  body{font-size:16px}
  .header-top{height:56px;gap:12px}
  .brand-line1{font-size:15px}
  .brand-line2{font-size:10.5px}
  .tabs-scroll{height:44px;gap:8px}
  .article-hero{padding:18px 0 32px}
  .article-title{font-size:26px;padding-left:14px}
  .article-meta{gap:10px;font-size:13px;margin-top:18px}
  .meta-dot{display:none}
  .breadcrumb .current{max-width:180px}
  .article-main{padding:34px 0 56px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .rel-grid{grid-template-columns:1fr}
  .end-section,.faq-section,.cta-strip{padding-top:56px}
  .section-head h2{font-size:23px}
  .pager-row .btn{flex:1 1 100%}
  .cta-inner h2{font-size:22px}
  .float-bar{
    left:0;right:0;bottom:0;transform:translateY(100%);
    background:rgba(5,8,15,.92);border-top:1px solid var(--line);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  }
  .float-bar.is-visible{transform:translateY(0)}
  .float-bar .btn{flex:1 1 auto}
  .site-footer{padding:48px 0 24px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important}
  .rel-card:hover{transform:none}
  .btn-primary:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#05080F;
  --bg-panel:#0A1020;
  --bg-card:#101829;
  --primary:#2ED3FF;
  --primary-deep:#0B57C7;
  --violet:#7A5CFF;
  --amber:#FFC53D;
  --text:#EAF2FF;
  --text-2:#9FB3D1;
  --text-3:#6B7C99;
  --ok:#38E8A8;
  --line:rgba(120,190,255,.14);
  --line-strong:rgba(46,211,255,.42);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-near:0 2px 8px rgba(0,0,0,.4);
  --sh-mid:0 12px 32px -12px rgba(0,0,0,.6);
  --sh-glow:0 0 24px rgba(46,211,255,.35);
  --pad-x:40px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  padding-bottom:72px;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(46,211,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,211,255,.028) 1px,transparent 1px);
  background-size:8px 8px;
  pointer-events:none;
  z-index:0;
}
header,main,footer{position:relative;z-index:1;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:#7FE3FF;}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font-family:inherit;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
section[id],div[id]{scroll-margin-top:132px;}
.container-wide{width:100%;max-width:1320px;margin:0 auto;padding:0 var(--pad-x);}
.container-mid{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad-x);}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;}
.nav-main{background:rgba(10,16,32,.86);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--line);}
.nav-main-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-icon{width:36px;height:36px;flex:0 0 36px;border-radius:11px;display:grid;place-items:center;color:var(--primary);background:linear-gradient(125deg,rgba(46,211,255,.22),rgba(122,92,255,.16));border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-line1{font-size:16px;font-weight:800;letter-spacing:.01em;}
.brand-line2{font-size:11.5px;color:var(--text-2);letter-spacing:.14em;}
.nav-search{position:relative;flex:1 1 auto;max-width:400px;margin:0 auto;}
.nav-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-3);pointer-events:none;}
.nav-search input{width:100%;height:42px;padding:0 16px 0 42px;border-radius:999px;background:rgba(16,24,41,.9);border:1px solid var(--line);color:var(--text);font-size:14px;outline:none;transition:border-color .22s ease-out,box-shadow .22s ease-out;}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,211,255,.18);}
.nav-main-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto;}
.hamburger{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);place-items:center;gap:4px;flex-direction:column;background:rgba(16,24,41,.8);}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:.2s ease-out;}
.hamburger:hover span{background:var(--primary);}
.nav-tabs{background:rgba(5,8,15,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);}
.tabs-scroll{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;scroll-snap-type:x proximity;}
.tabs-scroll::-webkit-scrollbar{display:none;}
.pill{flex:0 0 auto;padding:6px 16px;border-radius:999px;font-size:14px;color:var(--text-2);border:1px solid transparent;scroll-snap-align:start;transition:.22s ease-out;white-space:nowrap;}
.pill:hover{color:var(--text);background:rgba(46,211,255,.08);}
.pill.is-active{color:var(--text);border-color:rgba(46,211,255,.45);background:rgba(46,211,255,.1);box-shadow:inset 0 -2px 0 rgba(46,211,255,.85),0 0 18px rgba(46,211,255,.2);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out,filter .22s ease-out;}
.btn-primary{background:linear-gradient(120deg,#2ED3FF,#0B57C7);color:#05080F;box-shadow:0 0 0 1px rgba(46,211,255,.35),0 10px 30px -8px rgba(46,211,255,.55);}
.btn-primary:hover{color:#05080F;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(46,211,255,.55),0 16px 38px -10px rgba(46,211,255,.72);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(5,8,15,.45);}
.btn-ghost{background:transparent;border-color:rgba(46,211,255,.5);color:var(--text);}
.btn-ghost:hover{background:rgba(46,211,255,.12);box-shadow:0 0 18px rgba(46,211,255,.28);color:var(--text);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;}
.btn-text:hover{color:#7FE3FF;text-decoration:underline 1px;text-underline-offset:4px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(10,16,32,.5);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:12px 0;font-size:13px;color:var(--text-3);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li::after{content:"/";color:var(--text-3);opacity:.55;}
.crumb li:last-child::after{content:"";}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb li:last-child{color:var(--text-2);}

/* ---------- 页头 banner ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(5,8,15,.4),rgba(5,8,15,.94)),url("/assets/images/backpic/back-2.png") center/cover no-repeat;}
.page-hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(46,211,255,.03) 0 1px,transparent 1px 4px);pointer-events:none;}
.page-hero-inner{position:relative;z-index:2;padding:66px 0 56px;max-width:860px;}
.sec-label{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--primary);}
.sec-label .num{display:inline-grid;place-items:center;min-width:28px;height:22px;padding:0 6px;border-radius:6px;background:rgba(46,211,255,.12);border:1px solid rgba(46,211,255,.3);font-size:12px;}
.page-hero h1{font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.01em;margin:18px 0 18px;}
.page-hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:720px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-bar{display:flex;flex-wrap:wrap;margin-top:38px;padding-top:22px;border-top:1px solid var(--line);}
.trust-bar li{flex:1 1 22%;min-width:130px;display:flex;flex-direction:column;gap:2px;padding:0 18px;border-left:1px solid var(--line);}
.trust-bar li:first-child{border-left:0;padding-left:0;}
.trust-bar .mono{font-size:26px;font-weight:600;color:var(--primary);line-height:1.3;}
.trust-bar li > span:last-child{font-size:13px;color:var(--text-3);}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-alt{background:linear-gradient(180deg,rgba(10,16,32,.55),rgba(5,8,15,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;flex-direction:column;gap:14px;margin-bottom:40px;max-width:780px;}
.section-head h2{font-size:34px;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.section-head p{font-size:15.5px;color:var(--text-2);}
.section-head-tight{margin-bottom:30px;}

/* ---------- 侧边目录 ---------- */
.side-nav{position:sticky;top:132px;padding:24px 22px;border-radius:var(--r-card);border:1px solid var(--line);background:linear-gradient(180deg,rgba(46,211,255,.07),rgba(10,16,32,.72));backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--sh-mid);}
.side-nav-title{font-size:13px;letter-spacing:.14em;color:var(--text-3);font-family:var(--mono);margin-bottom:16px;}
.side-links{display:flex;flex-direction:column;gap:4px;}
.side-links a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:9px;color:var(--text-2);font-size:14.5px;border-left:3px solid transparent;transition:.22s ease-out;}
.side-links a .mono{font-size:12.5px;color:var(--text-3);}
.side-links a:hover{color:var(--text);background:rgba(46,211,255,.07);}
.side-links a.is-active{color:var(--text);border-left-color:var(--primary);background:rgba(46,211,255,.1);box-shadow:inset 0 0 18px rgba(46,211,255,.1);}
.side-links a.is-active .mono{color:var(--primary);}
.side-nav-cta{width:100%;margin-top:20px;}

/* ---------- 入口清单 ---------- */
.entry-list{border-top:1px solid var(--line);}
.entry{display:flex;gap:20px;padding:24px 14px;border-bottom:1px solid var(--line);transition:background .24s ease-out,transform .24s ease-out;}
.entry:hover{background:rgba(46,211,255,.05);transform:translateX(4px);}
.entry-index{flex:0 0 46px;font-family:var(--mono);font-size:20px;font-weight:600;color:var(--primary);opacity:.9;padding-top:2px;}
.entry-body{flex:1 1 auto;min-width:0;}
.entry-title{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.entry-desc{font-size:14.5px;line-height:1.8;color:var(--text-2);margin-bottom:12px;}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{font-size:12.5px;line-height:1.6;padding:3px 11px;border-radius:999px;background:rgba(122,92,255,.12);color:#BCACFF;border:1px solid rgba(122,92,255,.24);}
.entry-action{flex:0 0 auto;align-self:center;}
.pager{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;}
.pager a,.pager span{min-width:42px;height:42px;display:grid;place-items:center;padding:0 14px;border-radius:10px;border:1px solid var(--line);color:var(--text-2);font-family:var(--mono);font-size:14px;transition:.2s ease-out;}
.pager a:hover{border-color:var(--line-strong);color:var(--text);background:rgba(46,211,255,.08);}
.pager .is-current{color:var(--primary);border-color:var(--line-strong);background:rgba(46,211,255,.08);box-shadow:0 0 18px rgba(46,211,255,.22);}

/* ---------- 步骤 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.steps::before{content:"";position:absolute;left:28px;right:28px;top:28px;height:1px;background:linear-gradient(90deg,rgba(46,211,255,.55),rgba(122,92,255,.4),rgba(46,211,255,.1));}
.step{position:relative;}
.step-num{display:inline-grid;place-items:center;width:56px;height:56px;border-radius:999px;font-family:var(--mono);font-size:18px;font-weight:600;color:var(--primary);background:rgba(10,16,32,.96);border:1px solid rgba(46,211,255,.4);box-shadow:0 0 22px rgba(46,211,255,.25);margin-bottom:20px;}
.step h3{font-size:19px;font-weight:600;margin-bottom:8px;line-height:1.4;}
.step p{font-size:14.5px;line-height:1.8;color:var(--text-2);}

/* ---------- 场景卡片 ---------- */
.scene-card{position:relative;height:100%;border-radius:var(--r-card);border:1px solid var(--line);background:linear-gradient(180deg,rgba(46,211,255,.08),rgba(10,16,32,.72));backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--sh-mid);overflow:hidden;clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 18px 40px -14px rgba(46,211,255,.35);}
.scene-card-figure{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);}
.scene-card-figure img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
.scene-card:hover .scene-card-figure img{transform:scale(1.03);}
.scene-card-body{padding:24px 24px 26px;}
.scene-card-body h3{font-size:20px;font-weight:600;margin-bottom:10px;line-height:1.4;}
.scene-card-body p{font-size:14.5px;line-height:1.8;color:var(--text-2);}
.scene-card-sm{margin-bottom:24px;}
.scene-card-sm:last-child{margin-bottom:0;}
.scene-card-sm .scene-card-body{padding:22px 24px;}

/* ---------- 拦截处理对比列表 ---------- */
.fix-list{border-radius:var(--r-card);border:1px solid var(--line);background:rgba(10,16,32,.6);overflow:hidden;}
.fix-row{display:flex;align-items:center;gap:18px;padding:20px 24px;border-bottom:1px solid var(--line);transition:background .22s ease-out;}
.fix-row:last-child{border-bottom:0;}
.fix-row:hover{background:rgba(46,211,255,.05);}
.fix-sym{flex:1 1 40%;font-size:15.5px;font-weight:600;color:var(--text);}
.fix-arrow{flex:0 0 28px;color:var(--primary);font-family:var(--mono);text-align:center;}
.fix-act{flex:1 1 50%;font-size:14.5px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{position:relative;border-radius:var(--r-card);border:1px solid var(--line);background:linear-gradient(180deg,rgba(46,211,255,.06),rgba(10,16,32,.72));backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);overflow:hidden;}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);box-shadow:0 0 14px rgba(46,211,255,.8);opacity:0;transition:opacity .24s ease-out;}
.faq-item.is-open::before{opacity:1;}
.faq-q{display:flex;align-items:center;gap:16px;width:100%;padding:20px 24px;text-align:left;color:var(--text);font-size:17px;font-weight:600;line-height:1.5;}
.faq-q .mono{font-size:13px;color:var(--primary);flex:0 0 auto;}
.faq-q:hover{color:#fff;}
.faq-sign{position:relative;flex:0 0 20px;width:20px;height:20px;margin-left:auto;}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .24s ease-out;}
.faq-sign::before{left:2px;right:2px;top:9px;height:2px;}
.faq-sign::after{top:2px;bottom:2px;left:9px;width:2px;}
.faq-item.is-open .faq-sign::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a-inner{padding:0 24px 22px 62px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- CTA 条 ---------- */
.cta-band{position:relative;border-radius:18px;border:1px solid var(--line);padding:54px 44px;overflow:hidden;background:linear-gradient(120deg,rgba(11,87,199,.4),rgba(46,211,255,.12) 55%,rgba(122,92,255,.2));box-shadow:var(--sh-mid);}
.cta-band::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(46,211,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(46,211,255,.06) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;}
.cta-inner h2{font-size:30px;line-height:1.3;font-weight:700;margin-bottom:10px;}
.cta-inner p{font-size:15.5px;color:var(--text-2);max-width:620px;}
.cta-note{position:relative;z-index:2;margin-top:22px;font-size:12.5px;color:var(--text-3);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-panel);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{padding-bottom:12px;}
.footer-brand .brand{margin-bottom:6px;}
.footer-brand p{font-size:14px;color:var(--text-3);margin-top:14px;max-width:320px;line-height:1.8;}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--text-2);line-height:1.7;}
.footer-contact svg{flex:0 0 15px;margin-top:6px;color:var(--primary);}
.footer-bottom{border-top:1px solid var(--line);margin-top:48px;padding:22px 0 88px;text-align:center;font-size:13px;color:var(--text-3);line-height:1.9;}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(5,8,15,.7);z-index:190;opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:320px;max-width:88vw;background:var(--bg-panel);border-left:1px solid var(--line);z-index:200;transform:translateX(100%);transition:transform .26s ease-out;padding:24px 22px 32px;overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-head span{font-size:15px;font-weight:600;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);color:var(--text-2);font-size:18px;line-height:1;display:grid;place-items:center;}
.drawer-close:hover{color:var(--primary);border-color:var(--line-strong);}
.drawer-search{margin-bottom:22px;max-width:100%;}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:24px;}
.drawer-links a{display:block;padding:11px 14px;border-radius:10px;font-size:15px;color:var(--text-2);border:1px solid transparent;}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--text);background:rgba(46,211,255,.1);border-color:rgba(46,211,255,.3);}
.drawer-cta{width:100%;}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:28px;bottom:28px;z-index:150;display:flex;align-items:center;gap:10px;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out;}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top{width:46px;height:46px;border-radius:999px;border:1px solid var(--line);background:rgba(10,16,32,.92);color:var(--text-2);display:grid;place-items:center;transition:.22s ease-out;}
.to-top:hover{color:var(--primary);border-color:var(--line-strong);box-shadow:var(--sh-glow);}
.float-pill{padding:0 22px;height:46px;border-radius:999px;box-shadow:0 0 0 1px rgba(46,211,255,.35),0 14px 34px -12px rgba(46,211,255,.6);}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container-wide{max-width:1200px;}
}
@media (max-width:1023px){
  :root{--pad-x:32px;}
  .page-hero h1{font-size:40px;}
  .section{padding:72px 0;}
  .section-head h2{font-size:28px;}
  .side-nav{position:static;margin-bottom:32px;padding:18px 18px;}
  .side-links{flex-direction:row;overflow-x:auto;scrollbar-width:none;gap:6px;}
  .side-links::-webkit-scrollbar{display:none;}
  .side-links a{border-left:0;border-bottom:3px solid transparent;white-space:nowrap;}
  .side-links a.is-active{border-left:0;border-bottom-color:var(--primary);}
  .side-nav-cta{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .steps::before{display:none;}
  .scene-card-sm{margin-bottom:24px;}
  .cta-band{padding:44px 30px;}
  .cta-inner h2{font-size:26px;}
  .footer-grid > .cell{margin-bottom:34px;}
}
@media (max-width:767px){
  :root{--pad-x:20px;}
  body{font-size:16px;}
  .nav-main-inner{height:56px;gap:12px;}
  .nav-search{display:none;}
  .hamburger{display:flex;}
  .nav-cta{display:none;}
  .tabs-scroll{height:44px;}
  .page-hero-inner{padding:44px 0 40px;}
  .page-hero h1{font-size:32px;}
  .page-hero-sub{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .trust-bar li{flex:1 1 50%;padding:12px 14px;border-left:1px solid var(--line);}
  .trust-bar li:first-child{padding-left:14px;border-left:0;}
  .trust-bar li:nth-child(odd){border-left:0;padding-left:0;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .entry{flex-direction:column;gap:10px;padding:20px 4px;}
  .entry-index{flex:0 0 auto;}
  .entry-action{align-self:flex-start;}
  .steps{grid-template-columns:1fr;gap:28px;}
  .fix-row{flex-direction:column;align-items:flex-start;gap:8px;}
  .fix-arrow{display:none;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 20px 18px;}
  .cta-band{padding:34px 22px;border-radius:16px;}
  .cta-inner h2{font-size:23px;}
  .cta-inner .btn{width:100%;}
  .footer-bottom{padding:20px 0 96px;}
  .float-cta{left:0;right:0;bottom:0;gap:10px;padding:10px 20px calc(10px + env(safe-area-inset-bottom));background:rgba(10,16,32,.96);border-top:1px solid var(--line);transform:translateY(100%);}
  .float-cta.is-visible{transform:translateY(0);}
  .float-pill{flex:1 1 auto;}
}
@media (max-width:519px){
  .brand-line1{font-size:15px;}
  .page-hero h1{font-size:29px;}
  .trust-bar li{flex:1 1 100%;padding-left:0;border-left:0;border-bottom:1px solid var(--line);padding-bottom:12px;}
  .trust-bar li:last-child{border-bottom:0;}
  .scene-card-body{padding:20px 18px 22px;}
  .pager a,.pager span{min-width:38px;height:38px;padding:0 10px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .entry:hover,.btn-primary:hover,.scene-card:hover{transform:none;}
  .scene-card:hover .scene-card-figure img{transform:none;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1020;
  --bg-2:#101829;
  --brand:#2ED3FF;
  --brand-deep:#0B57C7;
  --violet:#7A5CFF;
  --amber:#FFC53D;
  --ok:#38E8A8;
  --text:#EAF2FF;
  --text-2:#9FB3D1;
  --text-3:#6B7C99;
  --line:rgba(120,190,255,.14);
  --line-soft:rgba(120,190,255,.08);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(0,0,0,.4);
  --sh-2:0 12px 32px -12px rgba(0,0,0,.6);
  --sh-glow:0 0 24px rgba(46,211,255,.35);
  --grad-btn:linear-gradient(120deg,#2ED3FF,#0B57C7);
  --grad-glass:linear-gradient(160deg,rgba(46,211,255,.08),rgba(10,16,32,.72));
  --ease:cubic-bezier(.2,.7,.2,1);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(46,211,255,.012) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,211,255,.012) 1px,transparent 1px);
  background-size:8px 8px;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ============ 容器 ============ */
.container{max-width:1200px;margin:0 auto;padding:0 40px;position:relative;z-index:1}
.container-wide{max-width:1320px;margin:0 auto;padding:0 40px;position:relative;z-index:1}
section[id]{scroll-margin-top:132px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,8,15,.84);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-icon{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(46,211,255,.22),rgba(122,92,255,.18));
  border:1px solid var(--line);
  color:var(--brand);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-line1{font-size:16px;font-weight:800;letter-spacing:.02em}
.brand-line2{font-size:10.5px;color:var(--text-2);letter-spacing:.18em}
.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:400px;
  margin:0 auto;
}
.nav-search svg{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  color:var(--text-3);
}
.nav-search input{
  width:100%;
  height:42px;
  padding:0 16px 0 42px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:rgba(16,24,41,.72);
  color:var(--text);
  font-size:14.5px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{
  outline:none;
  border-color:rgba(46,211,255,.6);
  box-shadow:0 0 0 2px rgba(46,211,255,.28),0 0 18px rgba(46,211,255,.25);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-burger{
  display:none;
  width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);
  color:var(--text);
  place-items:center;
  background:rgba(16,24,41,.7);
}
.nav-tabs{
  background:rgba(10,16,32,.62);
  border-top:1px solid var(--line-soft);
}
.tabs-scroll{
  display:flex;
  align-items:center;
  gap:10px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.tabs-scroll::-webkit-scrollbar{display:none}
.pill{
  position:relative;
  flex:0 0 auto;
  padding:7px 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  border:1px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.pill:hover{color:var(--text);background:rgba(46,211,255,.08);border-color:var(--line)}
.pill.is-active{
  color:var(--text);
  background:rgba(46,211,255,.1);
  border-color:rgba(46,211,255,.5);
  box-shadow:0 0 16px rgba(46,211,255,.2);
}
.pill.is-active::after{
  content:"";
  position:absolute;left:16px;right:16px;bottom:-12px;height:2px;
  background:var(--brand);
  box-shadow:0 0 10px var(--brand);
  border-radius:2px;
}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(5,8,15,.7);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:71;
  width:min(320px,84vw);
  padding:24px 22px 32px;
  background:linear-gradient(180deg,#0A1020,#05080F);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .26s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-title{font-size:15px;font-weight:700;color:var(--text-2);letter-spacing:.06em}
.drawer-close{
  width:36px;height:36px;border-radius:999px;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--text);
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-nav a{
  padding:12px 14px;border-radius:var(--r-btn);
  border:1px solid transparent;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.drawer-nav a:hover{background:rgba(46,211,255,.08);color:var(--text)}
.drawer-nav a.is-active{
  color:var(--text);border-color:rgba(46,211,255,.42);background:rgba(46,211,255,.1);
}
.drawer-search{position:relative;margin-bottom:18px}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;
  border-radius:var(--r-btn);border:1px solid var(--line);
  background:rgba(16,24,41,.8);color:var(--text);font-size:14.5px;
}
.drawer-search input:focus{outline:none;border-color:rgba(46,211,255,.6);box-shadow:0 0 0 2px rgba(46,211,255,.25)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:var(--grad-btn);
  color:#05080F;
  box-shadow:0 0 0 1px rgba(46,211,255,.35),0 10px 30px -8px rgba(46,211,255,.55);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(46,211,255,.5),0 16px 38px -10px rgba(46,211,255,.7);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.35)}
.btn-secondary{
  background:transparent;
  border-color:rgba(46,211,255,.5);
  color:var(--text);
}
.btn-secondary:hover{
  background:rgba(46,211,255,.12);
  box-shadow:0 0 18px rgba(46,211,255,.25);
  transform:translateY(-2px);
}
.btn-secondary:active{transform:translateY(0)}
.btn-ghost{
  height:auto;padding:2px 2px;
  color:var(--text-2);
  border-bottom:1px solid transparent;
  border-radius:0;
}
.btn-ghost:hover{color:var(--text);border-bottom-color:var(--brand);text-shadow:0 0 12px rgba(46,211,255,.6)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}

/* ============ 页头 banner ============ */
.crumb-bar{
  border-bottom:1px solid var(--line-soft);
  background:rgba(10,16,32,.5);
}
.crumb-bar .container-wide{height:44px;display:flex;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(120,190,255,.32)}
.breadcrumb .current{color:var(--text-2);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-banner{
  position:relative;
  padding:84px 0 76px;
  text-align:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg,rgba(5,8,15,.74),rgba(5,8,15,.93)),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
}
.page-banner::after{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(180deg,rgba(46,211,255,.03) 0 1px,transparent 1px 4px);
  opacity:.7;
}
.page-banner .container-wide{position:relative;z-index:2}
.banner-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 15px;margin-bottom:22px;
  border-radius:999px;
  border:1px solid rgba(46,211,255,.34);
  background:rgba(46,211,255,.08);
  font-size:13px;color:var(--brand);
  letter-spacing:.06em;
}
.banner-eyebrow .dot{
  width:6px;height:6px;border-radius:999px;background:var(--ok);
  box-shadow:0 0 10px var(--ok);
}
.page-banner h1{
  font-size:52px;line-height:1.15;font-weight:800;
  letter-spacing:-.01em;
  max-width:900px;margin:0 auto 20px;
}
.page-banner h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#2ED3FF,#7A5CFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-banner .banner-sub{
  font-size:17px;color:var(--text-2);
  max-width:640px;margin:0 auto 30px;
  line-height:1.9;
}
.banner-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* ============ 筛选行 ============ */
.filter-wrap{
  padding:26px 0 8px;
}
.filter-bar{
  display:flex;gap:10px;
  overflow-x:auto;
  scrollbar-width:none;
  padding-bottom:4px;
}
.filter-bar::-webkit-scrollbar{display:none}
.filter-pill{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(16,24,41,.66);
  color:var(--text-2);
  font-size:14px;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.filter-pill:hover{color:var(--text);transform:translateY(-2px);border-color:rgba(46,211,255,.34)}
.filter-pill.is-active{
  color:#05080F;
  background:linear-gradient(120deg,rgba(46,211,255,.95),rgba(46,211,255,.7));
  border-color:rgba(46,211,255,.8);
  box-shadow:0 0 18px rgba(46,211,255,.35);
  font-weight:600;
}

/* ============ 板块通用 ============ */
.section{padding:96px 0;position:relative;z-index:1}
.section-head{margin-bottom:40px}
.section-head.center{text-align:center}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);
  letter-spacing:.14em;
  margin-bottom:14px;
}
.section-head.center .eyebrow{justify-content:center}
.eyebrow .num{font-family:var(--mono);color:var(--brand);font-weight:600}
.section h2{font-size:34px;line-height:1.25}
.section-head p{
  margin-top:14px;color:var(--text-2);font-size:16px;max-width:660px;
}
.section-head.center p{margin-left:auto;margin-right:auto}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 卡片网格（双列不等高） ============ */
.tile-mosaic{padding-bottom:96px}
.tile-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:32px 26px;
  align-items:start;
}
.tile{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--grad-glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.tile:nth-child(even){margin-top:54px}
.tile:nth-child(3n){margin-top:26px}
.tile:hover{
  transform:translateY(-4px);
  border-color:rgba(46,211,255,.4);
  box-shadow:0 18px 40px -16px rgba(0,0,0,.75),0 0 26px rgba(46,211,255,.14),inset 0 1px 0 rgba(255,255,255,.08);
}
.tile-link{display:block;padding:22px 24px 24px}
.tile-media{
  position:relative;
  aspect-ratio:16/10;
  border-radius:var(--r-img);
  overflow:hidden;
  margin-bottom:20px;
  background:var(--bg-2);
}
.tile-media img{
  width:100%;height:100%;object-fit:cover;border-radius:0;
  transition:transform .24s ease-out;
}
.tile:hover .tile-media img{transform:scale(1.03)}
.tile-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.2),rgba(5,8,15,.72));
}
.tile-tag{
  position:absolute;left:12px;top:12px;z-index:2;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;
  background:rgba(122,92,255,.16);
  border:1px solid rgba(122,92,255,.42);
  color:#C6B8FF;
  backdrop-filter:blur(6px);
}
.tile-body h3{font-size:22px;line-height:1.4;margin-bottom:10px}
.tile-body p{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:16px}
.tile-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:14px;
  border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}
.tile-meta .ver{font-family:var(--mono);color:var(--text-2)}
.tile-arrow{color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.tile:hover .tile-arrow{gap:10px}

/* ============ 步骤条 ============ */
.steps-band{
  background:linear-gradient(180deg,rgba(10,16,32,.86),rgba(5,8,15,.9));
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
  position:relative;
  margin-top:34px;
}
.steps::before{
  content:"";
  position:absolute;left:8%;right:8%;top:22px;height:1px;
  background:linear-gradient(90deg,rgba(46,211,255,.05),rgba(46,211,255,.5),rgba(122,92,255,.4),rgba(46,211,255,.05));
}
.step{position:relative;padding-top:64px}
.step-dot{
  position:absolute;left:0;top:14px;
  width:18px;height:18px;border-radius:999px;
  background:var(--bg-0);
  border:2px solid var(--brand);
  box-shadow:0 0 16px rgba(46,211,255,.6);
}
.step-num{
  font-family:var(--mono);font-size:26px;font-weight:600;
  color:rgba(46,211,255,.85);display:block;margin-bottom:8px;
}
.step h3{font-size:20px;margin-bottom:10px}
.step p{font-size:15px;color:var(--text-2);line-height:1.8;margin:0}

/* ============ 数据条 ============ */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(46,211,255,.06),rgba(10,16,32,.66));
  backdrop-filter:blur(14px) saturate(140%);
  overflow:hidden;
}
.stat{
  padding:28px 24px;
  border-right:1px solid var(--line-soft);
  text-align:center;
}
.stat:last-child{border-right:0}
.stat .value{
  font-family:var(--mono);font-size:34px;font-weight:600;
  color:var(--text);line-height:1.1;display:block;margin-bottom:8px;
}
.stat .value small{font-size:14px;color:var(--text-2);margin-left:4px;font-family:inherit}
.stat .label{font-size:13.5px;color:var(--text-3)}

/* ============ 提示卡组 ============ */
.note-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:26px;
  align-items:start;
}
.note-main{
  padding:30px 30px 32px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(46,211,255,.09),rgba(10,16,32,.72));
  backdrop-filter:blur(14px);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
}
.note-main h3{font-size:24px;margin-bottom:14px}
.note-main p{color:var(--text-2);font-size:15.5px;line-height:1.9}
.note-list{display:flex;flex-direction:column;gap:16px}
.note-item{
  display:flex;gap:14px;
  padding:20px 22px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(16,24,41,.6);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.note-item:hover{border-color:rgba(46,211,255,.36);transform:translateX(4px)}
.note-item .ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:10px;
  display:grid;place-items:center;
  background:rgba(46,211,255,.1);
  border:1px solid rgba(46,211,255,.28);
  color:var(--brand);
}
.note-item h4{font-size:16.5px;margin-bottom:6px;font-weight:600}
.note-item p{font-size:14px;color:var(--text-2);margin:0;line-height:1.8}

/* ============ 转换条 ============ */
.cta-band{
  position:relative;
  padding:72px 0;
  overflow:hidden;
  background:
    linear-gradient(115deg,rgba(11,87,199,.34),rgba(46,211,255,.14) 62%,rgba(122,92,255,.22)),
    var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(46,211,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,211,255,.028) 1px,transparent 1px);
  background-size:8px 8px;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-copy h2{font-size:30px;margin-bottom:12px}
.cta-copy p{color:var(--text-2);font-size:15.5px;margin:0;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid !important;
  grid-template-columns:1.7fr 1fr 1.25fr 1.4fr;
  gap:40px;
}
.footer-grid > .cell{width:100% !important;float:none !important}
.site-footer .brand{gap:10px;margin-bottom:16px}
.site-footer .brand .brand-icon{width:34px;height:34px}
.site-footer p{font-size:14px;color:var(--text-3);line-height:1.85;max-width:300px}
.footer-title{font-size:14px;font-weight:700;color:var(--text);letter-spacing:.06em;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--text-3);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-links a:hover{color:var(--brand);padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-3);line-height:1.7}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--brand)}
.footer-bottom{
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid var(--line-soft);
  text-align:center;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:28px;bottom:28px;
  z-index:55;
  display:flex;align-items:center;gap:10px;
  padding:10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(10,16,32,.88);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;
  transform:translateY(14px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta .btn{height:40px;padding:0 16px;font-size:14px}
.float-top{
  width:40px;height:40px;border-radius:999px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.float-top:hover{color:var(--brand);border-color:rgba(46,211,255,.5);background:rgba(46,211,255,.1)}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container-wide{max-width:1200px}
}
@media (max-width:1023px){
  .container,.container-wide{padding:0 32px}
  .nav-search{display:none}
  .nav-burger{display:grid}
  .nav-cta{display:none}
  .page-banner{padding:68px 0 60px}
  .page-banner h1{font-size:40px}
  .section{padding:72px 0}
  .section h2{font-size:28px}
  .tile-grid{gap:26px 22px}
  .tile:nth-child(even),
  .tile:nth-child(3n){margin-top:24px}
  .steps{grid-template-columns:1fr;gap:8px}
  .steps::before{display:none}
  .step{padding-top:44px;padding-left:0}
  .step-dot{top:6px}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line-soft)}
  .note-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr !important;gap:32px}
  .cta-copy h2{font-size:26px}
}
@media (max-width:767px){
  .container,.container-wide{padding:0 20px}
  body{font-size:16px}
  .nav-top-inner{height:56px;gap:12px}
  .brand-line1{font-size:15px}
  .brand-line2{font-size:10px;letter-spacing:.14em}
  .tabs-scroll{height:44px}
  .pill.is-active::after{bottom:-9px}
  .page-banner{padding:52px 0 48px}
  .page-banner h1{font-size:32px}
  .page-banner .banner-sub{font-size:15.5px}
  .section{padding:56px 0}
  .section h2{font-size:24px}
  .section-head p{font-size:15px}
  .tile-grid{grid-template-columns:1fr}
  .tile:nth-child(even),
  .tile:nth-child(3n){margin-top:0}
  .tile-link{padding:18px 18px 20px}
  .tile-body h3{font-size:19px}
  .stat-band{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line-soft)}
  .stat:last-child{border-bottom:0}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr !important}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;
    padding:10px 20px calc(10px + env(safe-area-inset-bottom));
    justify-content:space-between;
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .float-cta .btn{flex:1 1 auto}
  .site-footer{padding-bottom:72px}
  .banner-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
  .tile:hover{transform:none}
  .tile:hover .tile-media img{transform:none}
}

/* roulang page: category3 */
:root{
  --bg:#05080F;
  --bg-2:#0A1020;
  --panel:#101829;
  --primary:#2ED3FF;
  --primary-deep:#0B57C7;
  --violet:#7A5CFF;
  --amber:#FFC53D;
  --text:#EAF2FF;
  --text-2:#9FB3D1;
  --text-3:#6B7C99;
  --ok:#38E8A8;
  --line:rgba(120,190,255,0.14);
  --line-strong:rgba(46,211,255,0.4);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-near:0 2px 8px rgba(0,0,0,0.4);
  --shadow-mid:0 12px 32px -12px rgba(0,0,0,0.6);
  --shadow-glow:0 0 24px rgba(46,211,255,0.35);
  --font:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Heiti SC',sans-serif;
  --mono:'SFMono-Regular','JetBrains Mono','Roboto Mono',Consolas,'Courier New',monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(46,211,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,211,255,0.022) 1px, transparent 1px);
  background-size:8px 8px;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out}
a:hover{color:#7FE3FF}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);font-family:var(--font);letter-spacing:-0.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.container-wide{width:100%;max-width:1320px;margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
[id]{scroll-margin-top:132px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--panel);color:var(--text);padding:10px 18px;border-radius:0 0 var(--r-btn) 0;
}
.skip-link:focus{left:0}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(5,8,15,0.88);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-main{height:68px;display:flex;align-items:center;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-icon{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:grid;place-items:center;color:var(--primary);
  background:linear-gradient(140deg,rgba(46,211,255,0.16),rgba(122,92,255,0.14));
  border:1px solid rgba(46,211,255,0.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.06);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-line1{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--text)}
.brand-line2{font-size:10.5px;letter-spacing:.22em;color:var(--primary);font-weight:500}
.header-search{position:relative;flex:1 1 auto;max-width:420px;margin-left:auto}
.header-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--text-3);pointer-events:none}
.header-search input{
  width:100%;height:40px;padding:0 14px 0 40px;border-radius:var(--r-btn);
  background:rgba(16,24,41,0.82);border:1px solid var(--line);color:var(--text);
  font-size:14px;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.header-search input::placeholder{color:var(--text-3)}
.header-search input:focus{
  outline:none;border-color:rgba(46,211,255,0.7);
  box-shadow:0 0 0 2px rgba(46,211,255,0.22),0 0 18px rgba(46,211,255,0.18);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);color:var(--text);place-items:center;
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(46,211,255,0.08)}

.nav-tabs{background:rgba(10,16,32,0.72);border-bottom:1px solid var(--line)}
.tabs-scroll{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.tabs-scroll::-webkit-scrollbar{display:none}
.pill{
  position:relative;flex:0 0 auto;padding:6px 16px;border-radius:999px;
  font-size:14px;color:var(--text-2);border:1px solid transparent;white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.pill:hover{color:var(--text);background:rgba(46,211,255,0.08)}
.pill.is-active{
  color:var(--text);border-color:rgba(46,211,255,0.5);background:rgba(46,211,255,0.1);
}
.pill.is-active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:-1px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(46,211,255,0.8);
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,filter .2s ease-out;
}
.btn-primary{
  background:linear-gradient(120deg,#2ED3FF,#0B57C7);
  color:#05080F;
  box-shadow:0 0 0 1px rgba(46,211,255,0.35),0 10px 30px -8px rgba(46,211,255,0.55);
}
.btn-primary:hover{
  color:#05080F;transform:translateY(-2px);filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(46,211,255,0.5),0 16px 38px -10px rgba(46,211,255,0.7);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,0.35)}
.btn-line{
  background:transparent;border-color:rgba(46,211,255,0.5);color:var(--text);
}
.btn-line:hover{
  background:rgba(46,211,255,0.12);color:var(--text);
  box-shadow:0 0 18px rgba(46,211,255,0.25);
}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:border-color .2s ease-out,color .2s ease-out;
}
.link-arrow:hover{color:#8FE8FF;border-bottom-color:rgba(46,211,255,0.8)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.14em;color:var(--text-2);
}
.eyebrow b{font-family:var(--mono);font-weight:600;font-size:13px;color:var(--primary);letter-spacing:.05em}

/* ===== Page head ===== */
.page-head{
  position:relative;overflow:hidden;
  padding:64px 0 68px;text-align:center;
  background:
    radial-gradient(900px 380px at 50% -50%, rgba(46,211,255,0.16), transparent 72%),
    radial-gradient(700px 300px at 82% 120%, rgba(122,92,255,0.14), transparent 70%),
    var(--bg);
}
.page-head::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(46,211,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,211,255,0.035) 1px, transparent 1px);
  background-size:26px 26px;
  mask-image:radial-gradient(600px 300px at 50% 30%, #000, transparent 78%);
  -webkit-mask-image:radial-gradient(600px 300px at 50% 30%, #000, transparent 78%);
}
.page-head::after{
  content:'';position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:min(760px,86%);height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,255,0.85),transparent);
  box-shadow:0 0 18px rgba(46,211,255,0.7);
}
.page-head .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:26px;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(120,190,255,0.35)}
.breadcrumb .current{color:var(--text-2)}
.page-head h1{
  font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-0.01em;
  max-width:900px;margin:14px auto 0;
}
.page-head .lead{
  max-width:720px;margin:20px auto 0;font-size:17px;line-height:1.85;color:var(--text-2);
}
.head-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:28px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;
  font-size:13px;color:#C6B8FF;background:rgba(122,92,255,0.12);
  border:1px solid rgba(122,92,255,0.26);
}

/* ===== Section head ===== */
.section-head{max-width:780px;margin:0 auto 44px;text-align:center}
.section-head h2{font-size:34px;line-height:1.25;font-weight:700;margin:14px 0 16px}
.section-desc{font-size:16px;line-height:1.85;color:var(--text-2)}
.section-head.left{text-align:left;margin-left:0}

/* ===== Timeline ===== */
.timeline-section{position:relative}
.timeline{position:relative;max-width:1080px;margin:0 auto;padding:8px 0 0}
.timeline::before{
  content:'';position:absolute;left:50%;top:0;bottom:0;width:1px;transform:translateX(-50%);
  background:linear-gradient(180deg,transparent,rgba(46,211,255,0.5) 10%,rgba(46,211,255,0.5) 90%,transparent);
  box-shadow:0 0 14px rgba(46,211,255,0.45);
}
.tl-item{
  position:relative;display:grid;grid-template-columns:1fr 1fr;column-gap:72px;
  padding-bottom:34px;
}
.tl-item:last-child{padding-bottom:0}
.tl-card{
  position:relative;
  padding:22px 26px;
  background:linear-gradient(150deg,rgba(46,211,255,0.08),rgba(10,16,32,0.72));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-near),inset 0 1px 0 rgba(255,255,255,0.06);
  clip-path:polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-mid),0 0 24px rgba(46,211,255,0.18);
}
.tl-item.is-left .tl-card{grid-column:1;text-align:right}
.tl-item.is-right .tl-card{grid-column:2;text-align:left}
.tl-num{
  display:block;font-family:var(--mono);font-size:13px;font-weight:600;
  letter-spacing:.14em;color:var(--primary);margin-bottom:8px;
}
.tl-card h3{font-size:22px;line-height:1.4;font-weight:600;margin-bottom:10px}
.tl-card p{font-size:15px;line-height:1.8;color:var(--text-2);margin-bottom:14px}
.tl-dot{
  position:absolute;left:50%;top:28px;width:12px;height:12px;transform:translateX(-50%);
  border-radius:50%;background:var(--bg);border:2px solid var(--primary);
  box-shadow:0 0 14px rgba(46,211,255,0.85);
}
.tl-dot::after{
  content:'';position:absolute;inset:2px;border-radius:50%;background:var(--primary);opacity:.55;
}

/* ===== Checklist ===== */
.check-section{
  position:relative;
  background:linear-gradient(180deg,rgba(10,16,32,0.6),rgba(5,8,15,0)) , var(--bg-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.check-grid{align-items:center}
.check-grid > .cell{padding-bottom:20px}
.figure-frame{
  position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-mid);aspect-ratio:16/10;background:var(--panel);
}
.figure-frame img{width:100%;height:100%;object-fit:cover}
.figure-frame::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,0.2),rgba(5,8,15,0.85));
}
.figure-caption{
  position:absolute;left:20px;right:20px;bottom:16px;z-index:1;
  font-size:13px;color:var(--text-2);
}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-bottom:1px solid var(--line);font-size:15.5px;color:var(--text-2);
}
.check-list li:first-child{padding-top:0}
.check-list li:last-child{border-bottom:none}
.check-list svg{flex:0 0 20px;margin-top:5px;color:var(--primary)}
.check-list strong{color:var(--text);font-weight:600}
.check-actions{margin-top:26px}

/* ===== FAQ ===== */
.faq-section{position:relative}
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  position:relative;
  background:linear-gradient(150deg,rgba(46,211,255,0.06),rgba(10,16,32,0.7));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-near),inset 0 1px 0 rgba(255,255,255,0.05);
  clip-path:polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition:border-color .24s ease-out,box-shadow .24s ease-out;
}
.faq-item:hover{border-color:rgba(46,211,255,0.32)}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--shadow-mid),0 0 24px rgba(46,211,255,0.14)}
.faq-item.is-open::before{
  content:'';position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);box-shadow:0 0 14px rgba(46,211,255,0.7);
}
.faq-trigger{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:20px 24px;color:var(--text);
}
.faq-q{font-size:17px;font-weight:600;line-height:1.5}
.faq-num{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--primary);letter-spacing:.08em;flex:0 0 auto}
.faq-text{flex:1 1 auto}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;color:var(--primary)}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transition:transform .24s ease-out,opacity .24s ease-out;
}
.faq-icon::before{width:14px;height:1.5px;transform:translate(-50%,-50%)}
.faq-icon::after{width:1.5px;height:14px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .28s ease-out,opacity .24s ease-out,padding .24s ease-out;
}
.faq-item.is-open .faq-a{max-height:420px;opacity:1}
.faq-a-inner{padding:0 24px 22px 51px;font-size:15.5px;line-height:1.85;color:var(--text-2)}

/* ===== CTA band ===== */
.cta-band{
  position:relative;overflow:hidden;
  padding:72px 0;
  background:
    linear-gradient(120deg,rgba(11,87,199,0.32),rgba(46,211,255,0.12) 60%,rgba(122,92,255,0.16)),
    var(--bg-2);
  border-top:1px solid var(--line);
}
.cta-band::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(46,211,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,211,255,0.05) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.6;
}
.cta-inner{position:relative;z-index:1;max-width:760px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:30px;line-height:1.3;font-weight:700;margin-bottom:14px}
.cta-inner p{font-size:16px;color:var(--text-2);margin-bottom:28px}

/* ===== Footer ===== */
.site-footer{
  background:var(--bg-2);border-top:1px solid var(--line);
  padding:72px 0 0;font-size:14px;
}
.footer-grid{margin-bottom:0}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-2);max-width:320px}
.footer-title{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text)}
.footer-links li{margin-bottom:12px}
.footer-links a{color:var(--text-2);font-size:14px}
.footer-links a:hover{color:var(--primary)}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;color:var(--text-2);font-size:14px}
.footer-contact svg{flex:0 0 15px;margin-top:6px;color:var(--primary)}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--line);
  text-align:center;font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* ===== Drawer ===== */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:120;
  background:rgba(10,16,32,0.97);backdrop-filter:blur(16px);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .26s ease-out;
  padding:22px 22px 32px;overflow-y:auto;display:flex;flex-direction:column;gap:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;z-index:110;background:rgba(5,8,15,0.7);
  opacity:0;pointer-events:none;transition:opacity .26s ease-out;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:36px;height:36px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);
}
.drawer-close:hover{border-color:var(--line-strong);color:var(--text)}
.drawer-search{position:relative}
.drawer-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-3)}
.drawer-search input{
  width:100%;height:42px;padding:0 14px 0 38px;border-radius:var(--r-btn);
  background:rgba(16,24,41,0.9);border:1px solid var(--line);color:var(--text);font-size:14px;
}
.drawer-search input:focus{outline:none;border-color:rgba(46,211,255,0.7);box-shadow:0 0 0 2px rgba(46,211,255,0.2)}
.drawer-links{display:flex;flex-direction:column;gap:2px}
.drawer-links a{
  display:block;padding:12px 4px;color:var(--text-2);font-size:15px;
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover{color:var(--primary)}
.drawer-links a.is-active{color:var(--text);font-weight:600}

/* ===== Floating CTA ===== */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:90;
  display:flex;align-items:center;gap:10px;padding:8px;
  border-radius:999px;border:1px solid var(--line);
  background:rgba(10,16,32,0.88);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-mid);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-top{
  width:36px;height:36px;border-radius:999px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);transition:all .2s ease-out;
}
.float-top:hover{border-color:var(--line-strong);color:var(--text);background:rgba(46,211,255,0.08)}

/* ===== Responsive ===== */
@media screen and (max-width:1023px){
  .container,.container-wide{padding:0 32px}
  .section{padding:72px 0}
  .page-head{padding:52px 0 56px}
  .page-head h1{font-size:40px}
  .section-head h2{font-size:28px}
  .header-search{display:none}
  .nav-toggle{display:grid}
  .header-actions .btn{display:none}
  .tl-item{column-gap:48px}
  .tl-card h3{font-size:20px}
  .cta-inner h2{font-size:26px}
}

@media screen and (max-width:767px){
  body{font-size:16px}
  .container,.container-wide{padding:0 20px}
  .section{padding:56px 0}
  .header-main{height:56px}
  .tabs-scroll{height:44px}
  [id]{scroll-margin-top:118px}
  .page-head{padding:40px 0 46px}
  .page-head h1{font-size:32px}
  .page-head .lead{font-size:15.5px;margin-top:16px}
  .head-tags{gap:8px;margin-top:22px}
  .breadcrumb{margin-bottom:18px;justify-content:flex-start;text-align:left}
  .section-head h2{font-size:24px}
  .section-desc{font-size:15px}
  .timeline::before{left:12px;transform:none}
  .tl-item{grid-template-columns:1fr;column-gap:0;padding-left:44px;padding-bottom:26px}
  .tl-item.is-left .tl-card,
  .tl-item.is-right .tl-card{grid-column:1;text-align:left}
  .tl-dot{left:12px;top:24px;transform:translateX(-50%)}
  .tl-card{padding:20px 20px}
  .tl-card h3{font-size:19px}
  .tl-card p{font-size:14.5px}
  .faq-a-inner{padding:0 20px 20px 20px}
  .faq-trigger{padding:18px 20px}
  .faq-q{font-size:16px}
  .footer-col{margin-bottom:34px}
  .footer-brand p{max-width:none}
  .cta-band{padding:56px 0}
  .cta-inner h2{font-size:23px}
  .cta-inner p{font-size:15px}
}

@media screen and (max-width:575px){
  .page-head h1{font-size:29px;line-height:1.28}
  .btn{height:46px;width:100%}
  .btn-sm{height:40px;width:100%}
  .check-actions .btn{width:100%}
  .cta-inner .btn{width:100%}
  .float-cta{
    left:0;right:0;bottom:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    border-radius:0;border-left:none;border-right:none;border-bottom:none;
    background:rgba(5,8,15,0.95);transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .float-cta .btn{width:auto;flex:1}
  .float-top{flex:0 0 40px;height:40px;width:40px}
  body{padding-bottom:76px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
  .tl-card:hover{transform:none}
  .btn-primary:hover{transform:none}
}