/* roulang page: index */
:root{
  --bg-0:#060B14;
  --bg-1:#0A111F;
  --bg-2:#0E1728;
  --line:rgba(140,170,220,.14);
  --hl:rgba(255,255,255,.08);
  --t1:#EAF2FF;
  --t2:#A9BBD6;
  --t3:#6E81A0;
  --brand:#2E86FF;
  --glow:#39E6C4;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-float:0 24px 60px rgba(0,0,0,.6);
  --container:1200px;
  --dur:.24s;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t2);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--dur) ease,border-color var(--dur) ease,background var(--dur) ease;}
a:hover{color:var(--glow);}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:650;line-height:1.3;letter-spacing:0;}
p{margin:0 0 20px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:8px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;position:relative;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(46,134,255,.12);border:1px solid var(--line);
  color:var(--glow);font-size:13px;font-weight:600;line-height:1.5;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--glow);box-shadow:0 0 10px rgba(57,230,196,.8);}
h2.section-title{font-size:32px;line-height:1.3;margin-bottom:16px;}
.section-title .hl{
  background-image:linear-gradient(transparent 62%,rgba(57,230,196,.32) 62%);
  background-repeat:no-repeat;background-size:100% 100%;padding:0 2px;
}
.section-desc{color:var(--t2);font-size:16px;line-height:1.85;}
.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease,color var(--dur) ease;
  white-space:nowrap;
}
.btn-sm{height:42px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(108deg,var(--brand) 0%,var(--glow) 100%);
  color:#04121A;
  box-shadow:0 0 20px rgba(57,230,196,.35);
}
.btn-primary:hover{color:#04121A;transform:translateY(-1px);box-shadow:0 0 26px rgba(57,230,196,.5);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(57,230,196,.3);}
.btn-ghost{
  background:transparent;color:var(--t1);border-color:var(--line);
}
.btn-ghost:hover{color:var(--t1);background:rgba(46,134,255,.12);border-color:var(--brand);}
.btn-ghost:active{background:rgba(46,134,255,.2);}
.btn-text{
  color:var(--brand);padding:0;height:auto;border:0;background:none;
  border-bottom:2px solid rgba(46,134,255,.5);border-radius:0;
}
.btn-text:hover{color:var(--glow);border-bottom-color:var(--glow);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-icon{width:18px;height:18px;flex:0 0 auto;}
.btn-stack{
  display:flex;align-items:center;gap:12px;width:100%;
  height:auto;padding:12px 16px;text-align:left;border-radius:var(--r-btn);
}
.btn-stack .st-label{display:block;font-size:15px;font-weight:600;line-height:1.3;}
.btn-stack .st-sub{display:block;font-size:12px;font-weight:400;opacity:.78;line-height:1.5;margin-top:2px;}
.btn-stack.btn-primary .st-sub{color:rgba(4,18,26,.72);}
.btn-stack.btn-ghost .st-sub{color:var(--t3);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background var(--dur) ease,box-shadow var(--dur) ease;
}
.site-header.is-scrolled{background:rgba(6,11,20,.94);box-shadow:0 10px 30px rgba(0,0,0,.45);}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--t1);}
.logo:hover{color:var(--t1);}
.logo-mark{
  position:relative;width:30px;height:30px;flex:0 0 auto;
  background:linear-gradient(120deg,var(--brand),var(--glow));
  clip-path:polygon(22% 0,100% 0,78% 100%,0 100%);
}
.logo-mark::after{
  content:"";position:absolute;right:4px;top:5px;width:6px;height:6px;border-radius:50%;
  background:#04121A;box-shadow:0 0 8px rgba(4,18,26,.6);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:0;line-height:1.2;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:38px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  color:var(--t2);font-size:14px;font-weight:500;
  transition:color var(--dur) ease,background var(--dur) ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:transparent;transition:background var(--dur) ease;
}
.nav-link:hover{color:var(--brand);background:rgba(255,255,255,.1);}
.nav-link:hover::after{background:rgba(46,134,255,.5);}
.nav-link.is-active{
  color:var(--t1);background:rgba(46,134,255,.2);
  padding-left:20px;
}
.nav-link.is-active::before{
  content:"";position:absolute;left:8px;top:50%;transform:translateY(-50%);
  width:4px;height:16px;border-radius:2px;background:var(--glow);box-shadow:0 0 10px rgba(57,230,196,.8);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;position:relative;transition:transform var(--dur) ease;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t1);border-radius:2px;transition:transform var(--dur) ease,top var(--dur) ease;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger.is-open span{background:transparent;}
.hamburger.is-open span::before{top:0;transform:rotate(45deg);}
.hamburger.is-open span::after{top:0;transform:rotate(-45deg);}
.drawer{
  position:fixed;inset:0;z-index:70;
  background:rgba(6,11,20,.98);
  backdrop-filter:blur(14px);
  display:flex;flex-direction:column;
  padding:88px 24px 32px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity var(--dur) ease,transform var(--dur) ease,visibility var(--dur) ease;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-close{
  position:absolute;top:18px;right:20px;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--t1);font-size:20px;line-height:1;
}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 16px;border-radius:var(--r-btn);
  color:var(--t1);font-size:16px;font-weight:500;
  border:1px solid transparent;
}
.drawer-link:hover,.drawer-link.is-active{background:rgba(46,134,255,.16);border-color:var(--line);color:var(--t1);}
.drawer-cta{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 88px;
  background-color:var(--bg-0);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(6,11,20,.92) 0%,rgba(6,11,20,.86) 45%,rgba(10,17,31,.94) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(140,170,220,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(140,170,220,.06) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.9;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(57,230,196,.1);border:1px solid rgba(57,230,196,.32);
  color:var(--glow);font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--glow);box-shadow:0 0 10px rgba(57,230,196,.9);}
h1.hero-title{
  font-size:52px;line-height:1.15;font-weight:700;margin-bottom:20px;
}
h1.hero-title .hl{
  background-image:linear-gradient(transparent 64%,rgba(57,230,196,.34) 64%);
  background-repeat:no-repeat;background-size:100% 100%;padding:0 2px;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--t2);max-width:560px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:36px;padding-top:28px;border-top:1px solid var(--line);}
.metric{min-width:110px;}
.metric-num{font-size:30px;font-weight:700;color:var(--t1);line-height:1.2;}
.metric-num small{font-size:14px;font-weight:600;color:var(--t3);margin-left:4px;}
.metric-label{font-size:13px;color:var(--t3);margin-top:4px;}
.device-wrap{position:relative;display:flex;justify-content:center;}
.device-wrap::before{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,196,.22) 0%,rgba(46,134,255,.14) 45%,transparent 72%);
  filter:blur(18px);
}
.device-frame{
  position:relative;width:100%;max-width:300px;
  padding:12px;border-radius:34px;
  background:linear-gradient(160deg,rgba(255,255,255,.12),rgba(255,255,255,.02));
  border:1px solid var(--hl);
  box-shadow:var(--shadow-float);
}
.device-frame img{
  width:100%;aspect-ratio:9/17;object-fit:cover;border-radius:24px;
  background:linear-gradient(150deg,#0E1728,#132540);
}
.device-tag{
  position:absolute;left:-18px;bottom:52px;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:var(--r-pill);
  background:rgba(10,17,31,.92);border:1px solid var(--line);
  color:var(--t1);font-size:13px;font-weight:600;box-shadow:var(--shadow-card);
}
.device-tag b{color:var(--warn);font-weight:700;}
.device-tag2{
  position:absolute;right:-14px;top:64px;
  padding:9px 14px;border-radius:var(--r-pill);
  background:rgba(10,17,31,.92);border:1px solid var(--line);
  color:var(--t2);font-size:13px;font-weight:500;box-shadow:var(--shadow-card);
}

/* ============ 计分带 ============ */
.ticker{
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:16px 0;overflow:hidden;
}
.ticker-track{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;}
.ticker-item{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:var(--bg-2);border:1px solid var(--line);
  font-size:13px;color:var(--t2);
}
.ticker-item .score{color:var(--t1);font-weight:700;}
.ticker-item .live{color:var(--danger);font-weight:600;}
.ticker-item .live::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--danger);margin-right:6px;vertical-align:middle;
  animation:pulse 1.6s infinite ease-in-out;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}

/* ============ 价值区 ============ */
.value-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px;align-items:start;}
.value-main{
  background:linear-gradient(160deg,rgba(46,134,255,.1),rgba(10,17,31,.6));
  border:1px solid var(--line);border-radius:var(--r-panel);
  padding:32px;box-shadow:var(--shadow-card);
}
.value-main h3{font-size:22px;margin-bottom:14px;}
.value-main .thumb{
  margin:22px 0 0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
}
.value-main .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.value-list{margin-top:20px;display:grid;gap:12px;}
.value-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--t2);
}
.value-list li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:2px;
  background:var(--glow);box-shadow:0 0 8px rgba(57,230,196,.7);
}
.value-side{display:grid;gap:24px;padding-top:32px;}
.mini-card{
  background:rgba(14,23,40,.82);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform var(--dur) ease,border-color var(--dur) ease;
}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(46,134,255,.5);}
.mini-card:nth-child(2){margin-left:28px;}
.mini-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:38px;height:26px;padding:0 10px;border-radius:8px;
  background:rgba(57,230,196,.12);border:1px solid rgba(57,230,196,.28);
  color:var(--glow);font-size:13px;font-weight:700;margin-bottom:14px;
}
.mini-card h3{font-size:18px;margin-bottom:10px;}
.mini-card p{font-size:14.5px;color:var(--t2);line-height:1.8;margin:0;}

/* ============ 截图轮播 ============ */
.shots-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.shots-nav{display:flex;gap:10px;}
.shots-nav button{
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--t1);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background var(--dur) ease,border-color var(--dur) ease,transform var(--dur) ease;
}
.shots-nav button:hover{background:rgba(46,134,255,.16);border-color:var(--brand);transform:translateY(-1px);}
.shots-nav button:active{transform:translateY(0);}
.shots-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 24px;margin:0 -4px;
  scrollbar-width:thin;scrollbar-color:rgba(140,170,220,.3) transparent;
}
.shots-track::-webkit-scrollbar{height:6px;}
.shots-track::-webkit-scrollbar-thumb{background:rgba(140,170,220,.28);border-radius:6px;}
.shot{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:14px;box-shadow:var(--shadow-card);
  transition:transform var(--dur) ease,border-color var(--dur) ease;
}
.shot:hover{transform:translateY(-4px);border-color:rgba(46,134,255,.5);}
.shot img{width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:14px;background:linear-gradient(150deg,#0E1728,#132540);}
.shot h3{font-size:16px;margin:16px 0 8px;}
.shot p{font-size:13.5px;color:var(--t3);line-height:1.7;margin:0;}
.shots-dots{display:flex;gap:8px;justify-content:center;margin-top:6px;}
.shots-dots button{
  width:8px;height:8px;border-radius:50%;background:rgba(140,170,220,.3);
  transition:background var(--dur) ease,width var(--dur) ease;
}
.shots-dots button.is-active{background:var(--glow);width:22px;border-radius:4px;box-shadow:0 0 10px rgba(57,230,196,.6);}

/* ============ 系统要求 Tab ============ */
.spec-panel{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-panel);
  overflow:hidden;box-shadow:var(--shadow-card);
}
.spec-tabs{display:flex;flex-wrap:wrap;gap:8px;padding:16px;border-bottom:1px solid var(--line);background:rgba(14,23,40,.6);}
.spec-tab{
  height:40px;padding:0 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--t2);font-size:14px;font-weight:600;
  transition:color var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease;
}
.spec-tab:hover{color:var(--t1);border-color:var(--brand);background:rgba(46,134,255,.12);}
.spec-tab.is-active{color:#04121A;background:linear-gradient(108deg,var(--brand),var(--glow));border-color:transparent;box-shadow:0 0 16px rgba(57,230,196,.3);}
.spec-body{padding:8px 16px 16px;}
.spec-row{
  display:grid;grid-template-columns:32px minmax(0,1fr) auto;
  gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line);
}
.spec-row:last-child{border-bottom:0;}
.spec-ico{
  width:32px;height:32px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(46,134,255,.14);border:1px solid var(--line);color:var(--brand);font-size:13px;font-weight:700;
}
.spec-name{color:var(--t1);font-size:15px;font-weight:500;}
.spec-val{color:var(--t2);font-size:14px;text-align:right;}
.spec-pane{display:none;}
.spec-pane.is-active{display:block;}

/* ============ 评价墙 ============ */
.review-wall{columns:2;column-gap:24px;}
.review{
  break-inside:avoid;margin-bottom:24px;
  background:rgba(14,23,40,.78);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform var(--dur) ease,border-color var(--dur) ease;
}
.review:hover{transform:translateY(-4px);border-color:rgba(46,134,255,.45);}
.review:nth-child(2n){margin-left:20px;}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(46,134,255,.4),rgba(57,230,196,.35));
  color:#04121A;font-weight:700;font-size:15px;
}
.review-name{color:var(--t1);font-size:15px;font-weight:600;line-height:1.4;}
.review-dev{font-size:12px;color:var(--t3);line-height:1.4;}
.stars{color:var(--warn);font-size:13px;letter-spacing:2px;margin-bottom:10px;}
.review p{font-size:14.5px;color:var(--t2);line-height:1.85;margin:0;}

/* ============ 资讯列表 ============ */
.news-card{
  display:flex;flex-direction:column;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--dur) ease,border-color var(--dur) ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(46,134,255,.55);}
.news-thumb{display:block;overflow:hidden;background:linear-gradient(150deg,#0E1728,#132540);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--dur) ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(46,134,255,.14);border:1px solid rgba(46,134,255,.26);
  color:#8CC0FF;font-size:12px;font-weight:600;
}
.tag.tag-alt{background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.3);color:var(--warn);}
.news-card h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.news-card h3 a{color:var(--t1);}
.news-card h3 a:hover{color:var(--glow);}
.news-card .excerpt{
  font-size:14px;color:var(--t2);line-height:1.8;margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t3);
}
.news-foot .arrow{transition:transform var(--dur) ease;color:var(--brand);font-weight:600;}
.news-card:hover .arrow{transform:translateX(3px);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  border:1px dashed var(--line);border-radius:var(--r-panel);background:rgba(14,23,40,.5);
}
.empty-state .icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  background:rgba(46,134,255,.12);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:22px;
}
.empty-state p{color:var(--t2);margin-bottom:18px;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color var(--dur) ease,background var(--dur) ease;
}
.faq-item.is-open{border-color:rgba(46,134,255,.5);background:rgba(14,23,40,.95);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 22px;text-align:left;
  color:var(--t1);font-size:16px;font-weight:600;line-height:1.5;
}
.faq-q:hover{color:var(--glow);}
.faq-icon{
  position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  transition:transform var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--t2);
  transform:translate(-50%,-50%);transition:background var(--dur) ease,transform var(--dur) ease;
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;}
.faq-item.is-open .faq-icon{background:rgba(57,230,196,.16);border-color:rgba(57,230,196,.45);transform:rotate(180deg);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--glow);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height var(--dur) ease;
}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--t2);}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(46,134,255,.16) 0%,rgba(10,17,31,.9) 55%,rgba(57,230,196,.12) 100%);
  border:1px solid var(--line);border-radius:var(--r-panel);
  padding:56px 40px;box-shadow:var(--shadow-float);
}
.cta-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(140,170,220,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(140,170,220,.06) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:40px;align-items:center;}
.cta-inner h2{font-size:30px;line-height:1.3;margin-bottom:14px;}
.cta-inner p{color:var(--t2);font-size:15.5px;line-height:1.85;margin:0;}
.download-group{display:grid;gap:12px;}
.qr-float{
  position:relative;
}
.qr-card{
  position:absolute;right:0;bottom:calc(100% + 12px);width:280px;
  background:rgba(10,17,31,.98);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-float);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--dur) ease,transform var(--dur) ease,visibility var(--dur) ease;
  z-index:5;
}
.qr-card.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.qr-code{
  width:130px;height:130px;margin:0 auto 14px;border-radius:14px;
  background:
    linear-gradient(135deg,rgba(46,134,255,.35),rgba(57,230,196,.3)),
    repeating-linear-gradient(45deg,rgba(255,255,255,.1) 0 6px,transparent 6px 12px);
  border:1px solid var(--hl);
  display:flex;align-items:center;justify-content:center;
  color:#04121A;font-weight:700;font-size:13px;text-align:center;line-height:1.5;
}
.qr-card h4{font-size:15px;margin-bottom:8px;text-align:center;}
.qr-card p{font-size:13px;color:var(--t3);line-height:1.7;text-align:center;margin:0;}

/* ============ 表单 ============ */
.subscribe{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px;}
.subscribe input{
  flex:1 1 240px;height:44px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(6,11,20,.7);border:1px solid var(--line);color:var(--t1);
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.subscribe input::placeholder{color:var(--t3);}
.subscribe input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,134,255,.18);}
.subscribe input.is-error{border-color:var(--danger);}
.form-hint{font-size:13px;color:var(--t3);margin-top:10px;}
.form-hint.is-error{color:var(--danger);}
.form-hint.is-ok{color:var(--glow);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t3);line-height:1.85;margin:0 0 16px;max-width:320px;}
.footer-col h4{font-size:15px;color:var(--t1);margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--t2);font-size:14px;}
.footer-col a:hover{color:var(--glow);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--t3);
}
.footer-bottom a{color:var(--t3);}
.footer-bottom a:hover{color:var(--glow);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  h1.hero-title{font-size:46px;}
  .hero-grid{gap:40px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .hamburger{display:inline-flex;}
  .hero{padding:72px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:48px;}
  h1.hero-title{font-size:40px;}
  .hero-sub{max-width:100%;}
  .device-wrap{margin-top:8px;}
  .value-grid{grid-template-columns:1fr;}
  .value-side{padding-top:0;grid-template-columns:repeat(2,minmax(0,1fr));display:grid;}
  .mini-card:nth-child(2){margin-left:0;transform:translateY(20px);}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .review-wall{columns:1;}
  .review:nth-child(2n){margin-left:0;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  h1.hero-title{font-size:32px;line-height:1.2;}
  h2.section-title{font-size:24px;}
  .hero{padding:56px 0 48px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:24px;}
  .metric-num{font-size:26px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .value-side{grid-template-columns:1fr;}
  .mini-card:nth-child(2){transform:none;}
  .shot{flex:0 0 82%;}
  .shots-nav{display:none;}
  .spec-row{grid-template-columns:28px minmax(0,1fr);}
  .spec-val{grid-column:2;text-align:left;}
  .cta-panel{padding:36px 20px;}
  .cta-inner h2{font-size:24px;}
  .qr-card{position:static;width:100%;opacity:1;visibility:visible;transform:none;display:none;margin-top:12px;}
  .qr-card.is-open{display:block;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  h1.hero-title{font-size:29px;}
  .logo-text{font-size:16px;}
  .device-tag,.device-tag2{font-size:12px;padding:7px 11px;}
  .ticker-track{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;animation-iteration-count:1 !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060B14;
  --bg-1:#0A111F;
  --bg-2:#0E1728;
  --line:rgba(140,170,220,.14);
  --hairline:rgba(255,255,255,.08);
  --t1:#EAF2FF;
  --t2:#A9BBD6;
  --t3:#6E81A0;
  --brand:#2E86FF;
  --glow:#39E6C4;
  --warn:#FFB020;
  --accent:#39E6C4;
  --accent-soft:rgba(57,230,196,.14);
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-float:0 24px 60px rgba(0,0,0,.6);
  --gap:24px;
  --section-y:96px;
  --ease:240ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease),transform var(--ease)}
a:hover{color:var(--glow)}
img{max-width:100%;display:block;border:0}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px}
::selection{background:rgba(57,230,196,.28);color:#fff}
.num,.stat-value,.time{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-y) 0}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);letter-spacing:.06em;margin-bottom:14px}
.section-head .eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px}
.section-head h2{font-size:32px;margin-bottom:14px}
.section-head p{color:var(--t2);max-width:680px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,11,20,.66);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:rgba(6,11,20,.88);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.nav-bar{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--t1);font-weight:700;font-size:17px;letter-spacing:.01em}
.logo:hover{color:var(--t1)}
.logo-mark{
  position:relative;width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),var(--glow));
  clip-path:polygon(22% 0,100% 0,78% 100%,0 100%);
}
.logo-mark::after{content:"";position:absolute;right:4px;bottom:5px;width:6px;height:6px;border-radius:50%;background:#04121A;box-shadow:0 0 8px rgba(57,230,196,.9)}
.logo-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1 1 auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--t2);font-weight:500;white-space:nowrap;
}
.nav-link:hover{color:var(--glow)}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--glow);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
  box-shadow:0 0 8px rgba(57,230,196,.8);
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--t1);background:rgba(255,255,255,.06)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-pill{background:rgba(255,255,255,.06)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--radius-btn);
  background:linear-gradient(110deg,var(--brand),var(--glow));color:#04121A;font-weight:600;font-size:15px;
  box-shadow:0 0 20px rgba(57,230,196,.35);transition:transform var(--ease),box-shadow var(--ease);
}
.nav-cta:hover{color:#04121A;transform:translateY(-1px);box-shadow:0 0 26px rgba(57,230,196,.5)}
.nav-cta:active{transform:translateY(0);box-shadow:0 0 14px rgba(57,230,196,.3)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;background:rgba(255,255,255,.04);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;inset:0 0 0 0;z-index:90;background:rgba(6,11,20,.97);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  display:flex;flex-direction:column;padding:20px 24px 28px;
  transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease);
}
.mobile-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--t1);font-size:20px;line-height:1}
.drawer-links{display:flex;flex-direction:column;margin-top:20px;flex:1 1 auto;overflow-y:auto}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 4px;
  color:var(--t1);font-size:16px;border-bottom:1px solid var(--line);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--glow)}
.drawer-bottom{padding-top:20px;border-top:1px solid var(--line)}
.drawer-bottom .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
  border:1px solid transparent;
}
.btn-primary{background:linear-gradient(110deg,var(--brand),var(--glow));color:#04121A;box-shadow:0 0 20px rgba(57,230,196,.35)}
.btn-primary:hover{color:#04121A;transform:translateY(-1px);box-shadow:0 0 26px rgba(57,230,196,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 12px rgba(57,230,196,.28)}
.btn-primary[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(46,134,255,.12);color:var(--t1)}
.btn-ghost:active{background:rgba(46,134,255,.18)}
.btn-text{
  height:auto;padding:2px 0;border-radius:0;color:var(--t1);font-weight:600;
  border-bottom:2px solid rgba(57,230,196,.5);
}
.btn-text:hover{color:var(--glow);border-bottom-color:var(--glow)}
.btn svg{flex:0 0 auto}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;padding:72px 0 76px;
  background:linear-gradient(180deg,rgba(6,11,20,.9),rgba(6,11,20,.96)),url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(140,170,220,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(140,170,220,.06) 1px,transparent 1px);
  background-size:48px 48px;opacity:.5;pointer-events:none;
}
.cat-hero::after{
  content:"";position:absolute;width:620px;height:620px;right:-180px;top:-260px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,196,.20),transparent 62%);filter:blur(28px);pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.hero-inner{max-width:820px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--t3);margin-bottom:22px}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb .sep{color:var(--t3)}
.breadcrumb .current{color:var(--t1)}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:500;color:var(--t1);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
}
.badge--accent{color:var(--glow);border-color:rgba(57,230,196,.4);background:rgba(57,230,196,.1)}
.badge--warn{color:var(--warn);border-color:rgba(255,176,32,.38);background:rgba(255,176,32,.09)}
.cat-hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.16;margin-bottom:20px}
.cat-hero h1 .hl{position:relative;color:var(--glow);white-space:nowrap}
.cat-hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:4px;border-radius:3px;
  background:linear-gradient(90deg,var(--glow),rgba(57,230,196,0));box-shadow:0 0 14px rgba(57,230,196,.6);
}
.cat-hero .lead{font-size:17px;color:var(--t2);max-width:640px;margin-bottom:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.stat-chip{
  min-width:168px;flex:1 1 168px;padding:16px 18px;border-radius:var(--radius-card);
  background:rgba(14,23,40,.72);border:1px solid var(--hairline);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.stat-chip .stat-value{display:block;font-size:28px;font-weight:700;color:var(--t1);line-height:1.2}
.stat-chip .stat-label{display:block;font-size:13px;color:var(--t3);margin-top:4px}

/* ---------- 图文双栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split--reverse .split-media{order:2}
.split-body h2{font-size:32px;margin-bottom:18px}
.split-body p{margin-bottom:18px}
.split-body p:last-child{margin-bottom:0}
.split-media{
  position:relative;border-radius:var(--radius-panel);overflow:hidden;
  border:1px solid var(--hairline);box-shadow:var(--shadow-card);
  background:linear-gradient(135deg,var(--bg-2),#0b1526);
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.05),rgba(6,11,20,.55));
  pointer-events:none;
}
.media-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:rgba(6,11,20,.72);border:1px solid rgba(57,230,196,.4);color:var(--glow);font-size:13px;
  backdrop-filter:blur(10px);
}
.media-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--glow);box-shadow:0 0 10px var(--glow)}

/* ---------- 编号要点 ---------- */
.point-list{display:grid;gap:16px}
.point-item{
  display:grid;grid-template-columns:52px 1fr;gap:18px;align-items:start;
  padding:20px 22px;border-radius:var(--radius-card);
  background:rgba(14,23,40,.6);border:1px solid var(--hairline);
  transition:border-color var(--ease),transform var(--ease),background-color var(--ease);
}
.point-item:hover{border-color:rgba(57,230,196,.42);transform:translateY(-3px);background:rgba(14,23,40,.86)}
.point-index{
  display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;
  background:rgba(57,230,196,.12);border:1px solid rgba(57,230,196,.34);
  color:var(--glow);font-weight:700;font-size:17px;
}
.point-item h3{font-size:19px;margin-bottom:6px}
.point-item p{font-size:15px;color:var(--t2)}

/* ---------- 卡片矩阵 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.card{
  display:flex;flex-direction:column;padding:24px;border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(14,23,40,.9),rgba(10,17,31,.9));
  border:1px solid var(--hairline);box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(57,230,196,.4)}
.card .icon-box{
  display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  background:rgba(46,134,255,.14);border:1px solid rgba(46,134,255,.3);color:var(--brand);margin-bottom:16px;
}
.card h3{font-size:19px;margin-bottom:10px}
.card p{font-size:15px;color:var(--t2)}
.card .card-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--t3)}

/* ---------- 数据条 ---------- */
.meter{display:grid;gap:14px}
.meter-row{display:grid;grid-template-columns:132px 1fr 64px;gap:16px;align-items:center;font-size:14px}
.meter-row .name{color:var(--t2)}
.meter-track{height:8px;border-radius:999px;background:rgba(140,170,220,.14);overflow:hidden}
.meter-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));box-shadow:0 0 12px rgba(57,230,196,.5)}
.meter-row .val{text-align:right;color:var(--t1);font-weight:600}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{
  border-radius:var(--radius-card);background:rgba(14,23,40,.62);
  border:1px solid var(--hairline);overflow:hidden;transition:border-color var(--ease),background-color var(--ease);
}
.faq-item[open],.faq-item:hover{border-color:rgba(57,230,196,.36)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;cursor:pointer;list-style:none;
  color:var(--t1);font-weight:600;font-size:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--t2);animation:faqIn var(--ease) both}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ---------- 相关入口 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.rel-card{
  display:flex;gap:16px;align-items:center;padding:18px;border-radius:var(--radius-card);
  background:rgba(14,23,40,.6);border:1px solid var(--hairline);color:var(--t1);
  transition:transform var(--ease),border-color var(--ease),background-color var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(57,230,196,.42);color:var(--t1);background:rgba(14,23,40,.9)}
.rel-card img{width:88px;height:72px;flex:0 0 88px;border-radius:12px;object-fit:cover}
.rel-card h3{font-size:16px;margin-bottom:6px}
.rel-card span{font-size:13px;color:var(--t3)}
.rel-card .arrow{margin-left:auto;color:var(--accent);transition:transform var(--ease)}
.rel-card:hover .arrow{transform:translateX(4px)}

/* ---------- 下载 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-panel);
  padding:48px 44px;border:1px solid rgba(57,230,196,.28);
  background:linear-gradient(120deg,rgba(10,17,31,.96),rgba(14,23,40,.92)),
             radial-gradient(circle at 88% 12%,rgba(57,230,196,.22),transparent 58%);
  box-shadow:var(--shadow-float);
}
.cta-band h2{font-size:30px;margin-bottom:12px}
.cta-band p{max-width:620px;margin-bottom:28px}
.dl-group{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:800px}
.dl-btn{
  display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--t1);text-align:left;
  transition:transform var(--ease),border-color var(--ease),background-color var(--ease),box-shadow var(--ease);
}
.dl-btn:hover{transform:translateY(-2px);border-color:rgba(57,230,196,.5);background:rgba(57,230,196,.08);color:var(--t1)}
.dl-btn:active{transform:translateY(0)}
.dl-btn .dl-ico{
  display:flex;align-items:center;justify-content:center;width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  background:rgba(46,134,255,.16);border:1px solid rgba(46,134,255,.3);color:var(--brand);
}
.dl-btn .dl-title{display:block;font-size:15px;font-weight:600;line-height:1.4}
.dl-btn .dl-note{display:block;font-size:12px;color:var(--t3);line-height:1.5}
.dl-btn--primary{background:linear-gradient(110deg,var(--brand),var(--accent));border-color:transparent;color:#04121A;box-shadow:0 0 20px rgba(57,230,196,.35)}
.dl-btn--primary:hover{color:#04121A;box-shadow:0 0 26px rgba(57,230,196,.5);background:linear-gradient(110deg,var(--brand),var(--accent))}
.dl-btn--primary .dl-ico{background:rgba(4,18,26,.22);border-color:rgba(4,18,26,.3);color:#04121A}
.dl-btn--primary .dl-note{color:rgba(4,18,26,.72)}
.qr-pop{
  margin-top:20px;display:flex;align-items:center;gap:16px;padding:16px 18px;border-radius:var(--radius-card);
  border:1px dashed var(--line);background:rgba(6,11,20,.6);max-width:420px;
}
.qr-box{
  width:78px;height:78px;flex:0 0 78px;border-radius:10px;
  background-image:linear-gradient(45deg,rgba(255,255,255,.9) 25%,transparent 25% 75%,rgba(255,255,255,.9) 75%),
                   linear-gradient(45deg,rgba(255,255,255,.9) 25%,transparent 25% 75%,rgba(255,255,255,.9) 75%);
  background-size:16px 16px;background-position:0 0,8px 8px;background-color:#0E1728;border:1px solid var(--line);
}
.qr-pop p{font-size:13.5px;color:var(--t2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand p{font-size:14.5px;color:var(--t2);margin:16px 0 20px;max-width:330px}
.footer-col h4{font-size:15px;color:var(--t1);margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:var(--t2);font-size:14.5px}
.footer-col a:hover{color:var(--glow)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--section-y:72px;--gap:20px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-bar{height:64px}
  .split{gap:36px;grid-template-columns:1fr}
  .split--reverse .split-media{order:0}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .rel-grid{grid-template-columns:1fr}
  .split-body h2{font-size:26px}
}
@media (max-width:767px){
  :root{--section-y:56px;--gap:16px}
  .container{padding:0 16px}
  .logo-text{font-size:16px}
  .nav-cta{display:none}
  .cat-hero{padding:48px 0 52px}
  .cat-hero .lead{font-size:16px}
  .section-head h2{font-size:24px}
  .split-body h2{font-size:23px}
  .card-grid{grid-template-columns:1fr}
  .dl-group{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
  .cta-band h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:8px;padding-bottom:28px}
  .footer-col{border-bottom:1px solid var(--line);padding-bottom:12px}
  .footer-col h4{margin:0;padding:14px 0 6px;cursor:default}
  .footer-col ul{gap:8px;margin-bottom:10px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .point-item{grid-template-columns:44px 1fr;gap:14px;padding:18px}
  .point-index{width:44px;height:44px;border-radius:12px;font-size:15px}
  .meter-row{grid-template-columns:96px 1fr 48px;gap:10px;font-size:13px}
  .hero-stats{gap:10px}
  .stat-chip{min-width:140px;flex:1 1 140px}
  .stat-chip .stat-value{font-size:23px}
}
@media (max-width:480px){
  .badge{height:28px;padding:0 12px;font-size:12px}
  .btn{height:44px;padding:0 18px;font-size:14.5px}
  .rel-card{flex-direction:column;align-items:flex-start}
  .rel-card img{width:100%;height:140px;flex:0 0 auto}
  .rel-card .arrow{display:none}
  .qr-pop{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg-0:#060B14;
  --bg-1:#0A111F;
  --bg-2:#0E1728;
  --line:rgba(140,170,220,.14);
  --hl:rgba(255,255,255,.08);
  --t1:#EAF2FF;
  --t2:#A9BBD6;
  --t3:#6E81A0;
  --brand:#2E86FF;
  --glow:#39E6C4;
  --warn:#FFB020;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-pop:0 24px 60px rgba(0,0,0,.6);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  font-variant-numeric:tabular-nums;
  -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(140,170,220,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,170,220,.055) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .24s ease,border-color .24s ease,background-color .24s ease}
a:hover{color:var(--glow)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:650;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
hr{border:0;border-top:1px solid var(--line);margin:0}
:where(a,button,summary,input):focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.site-header,.site-main,.site-footer{position:relative;z-index:2}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;white-space:nowrap;text-align:center;
  transition:transform .24s ease,box-shadow .24s ease,background-color .24s ease,border-color .24s ease,color .24s ease;
}
.btn-primary{
  background:linear-gradient(115deg,var(--brand) 8%,var(--glow) 96%);
  color:#04121A;box-shadow:0 0 20px rgba(57,230,196,.35);
}
.btn-primary:hover{color:#04121A;transform:translateY(-1px);box-shadow:0 0 26px rgba(57,230,196,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 12px rgba(57,230,196,.3)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{background:rgba(46,134,255,.12);border-color:var(--brand);color:var(--t1)}
.btn-text{
  height:auto;padding:0 0 3px;border:0;border-bottom:2px solid rgba(46,134,255,.45);
  border-radius:0;background:none;color:var(--brand);font-size:14.5px;
}
.btn-text:hover{color:var(--glow);border-bottom-color:var(--glow)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{background:rgba(6,11,20,.9);box-shadow:0 12px 30px rgba(0,0,0,.45)}
.header-inner{display:flex;align-items:center;gap:16px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--t1);font-weight:700;font-size:18px;letter-spacing:.01em}
.logo:hover{color:var(--t1)}
.logo-mark{
  position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:4px;
  background:linear-gradient(135deg,var(--brand),var(--glow));
  clip-path:polygon(22% 0,100% 0,78% 100%,0 100%);
  box-shadow:0 0 16px rgba(57,230,196,.45);
}
.logo-mark::after{content:"";position:absolute;right:3px;bottom:3px;width:6px;height:6px;border-radius:50%;background:#04121A}
.logo-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;
  padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.05);
  color:var(--t2);font-size:14.5px;
  transition:color .24s ease,background-color .24s ease,border-color .24s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--glow));
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-link:hover{color:var(--t1);background:rgba(46,134,255,.14);border-color:rgba(46,134,255,.35)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--t1);background:rgba(46,134,255,.16);border-color:rgba(46,134,255,.35);padding-left:18px}
.nav-link.is-active::before{
  content:"";position:absolute;left:6px;top:9px;bottom:9px;width:4px;border-radius:3px;
  background:var(--glow);box-shadow:0 0 12px rgba(57,230,196,.6);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--t1);transition:transform .24s ease,opacity .24s ease}
.nav-toggle:hover{border-color:var(--brand);background:rgba(46,134,255,.14)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none;background:rgba(4,8,15,.72);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.drawer.is-open{display:block}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(364px,88vw);height:100%;
  background:rgba(10,17,31,.98);border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:6px;overflow:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:10px}
.drawer-title{font-size:13px;color:var(--t3);letter-spacing:.08em}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:transparent;cursor:pointer;color:var(--t1);font-size:18px;line-height:1}
.drawer-close:hover{border-color:var(--glow);color:var(--glow)}
.drawer-link{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;color:var(--t2);font-size:15.5px;border:1px solid transparent}
.drawer-link:hover,.drawer-link.is-active{background:rgba(46,134,255,.12);border-color:rgba(46,134,255,.3);color:var(--t1)}
.drawer-note{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--t3)}
.drawer-cta{margin-top:12px}

/* ---------- 文章头部横幅 ---------- */
.article-banner{position:relative;overflow:hidden;background:var(--bg-1);border-bottom:1px solid var(--line)}
.article-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;opacity:.34;
}
.article-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.72) 0%,rgba(6,11,20,.94) 100%);
}
.article-banner .container{padding-top:34px;padding-bottom:46px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--t3)}
.breadcrumb a{color:var(--t3)}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb .sep{color:rgba(110,129,160,.6)}
.breadcrumb .current{color:var(--t1);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  margin-top:18px;font-size:clamp(30px,4vw,48px);line-height:1.18;
  max-width:20em;letter-spacing:.002em;
}
.title-underline{display:block;width:76px;height:4px;border-radius:2px;margin-top:20px;background:linear-gradient(90deg,var(--glow),rgba(57,230,196,0))}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px}
.pill{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;background:rgba(46,134,255,.14);color:#9CC7FF;border:1px solid rgba(46,134,255,.3);
}
.pill-warn{background:rgba(255,176,32,.14);color:#FFD08A;border-color:rgba(255,176,32,.3)}
.pill-glow{background:rgba(57,230,196,.12);color:#8BF3DD;border-color:rgba(57,230,196,.3)}
.meta-item{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--t3)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(110,129,160,.6)}

/* ---------- 正文布局 ---------- */
.article-section{padding:56px 0 72px}
.article-layout{
  max-width:1120px;margin:0 auto;
  display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:44px;align-items:start;
}
.article-layout.is-single{grid-template-columns:minmax(0,780px);justify-content:center}
.article-main{min-width:0}
.cover-figure{
  margin:0 0 34px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--hl);box-shadow:var(--shadow-card);background:var(--bg-2);
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-body{max-width:780px;font-size:17px;line-height:1.9;color:var(--t2);word-wrap:break-word}
.article-body>*+*{margin-top:20px}
.article-body h2{
  position:relative;font-size:26px;line-height:1.35;color:var(--t1);
  padding-left:16px;margin-top:42px;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--glow),var(--brand));
}
.article-body h3{font-size:20px;color:var(--t1);margin-top:32px;scroll-margin-top:96px}
.article-body p{color:var(--t2)}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(46,134,255,.4)}
.article-body a:hover{color:var(--glow);border-bottom-color:var(--glow)}
.article-body strong{color:var(--t1);font-weight:650}
.article-body img{border-radius:12px;margin-top:24px}
.article-body figure{margin:0}
.article-body figcaption{font-size:13px;color:var(--t3);margin-top:10px;text-align:center}
.article-body blockquote{
  border-left:3px solid var(--brand);background:rgba(46,134,255,.07);
  border-radius:0 12px 12px 0;padding:16px 22px;color:var(--t2);
}
.article-body ul>li,.article-body ol>li{position:relative;padding-left:24px;margin-top:10px}
.article-body ul>li::before{
  content:"";position:absolute;left:6px;top:.72em;width:6px;height:6px;border-radius:2px;
  background:var(--glow);transform:rotate(45deg);
}
.article-body ol{counter-reset:cmslist}
.article-body ol>li{counter-increment:cmslist}
.article-body ol>li::before{
  content:counter(cmslist);
  position:absolute;left:0;top:0;width:16px;text-align:left;color:var(--glow);
  font-size:14px;font-weight:700;
}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin-top:24px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body th{background:rgba(46,134,255,.1);color:var(--t1);font-weight:600}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-body tr:last-child td{border-bottom:0}
.article-body pre{
  background:#070E19;border:1px solid var(--line);border-radius:12px;
  padding:16px;overflow:auto;font-size:14px;line-height:1.7;color:#BCD2EF;
}
.article-body code{background:rgba(140,170,220,.14);border-radius:6px;padding:2px 6px;font-size:14px;color:#CFE3FF}
.article-body pre code{background:none;padding:0}

/* ---------- 目录 ---------- */
.article-aside{min-width:0}
.toc{
  position:sticky;top:96px;border:1px solid var(--hl);border-radius:var(--r-card);
  background:rgba(14,23,40,.62);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:18px;box-shadow:var(--shadow-card);
}
.toc summary{
  list-style:none;cursor:pointer;font-size:13px;color:var(--t3);letter-spacing:.08em;
  display:flex;align-items:center;justify-content:space-between;
}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:"＋";color:var(--t3)}
.toc[open] summary::after{content:"－"}
.toc-list{margin-top:12px;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;line-height:1.55;color:var(--t2);
  padding:7px 0 7px 12px;border-left:2px solid rgba(140,170,220,.22);
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.toc-list a:hover{color:var(--glow);border-left-color:var(--glow);background:rgba(57,230,196,.06)}
.toc-tip{font-size:12.5px;color:var(--t3);margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--r-panel);background:rgba(14,23,40,.5);
}
.empty-state h2{font-size:24px;margin-bottom:12px}
.empty-state p{margin-bottom:22px;font-size:15px;color:var(--t3)}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:32px}
.section-head p{font-size:15px;color:var(--t3);margin-top:10px;max-width:60ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--glow);letter-spacing:.06em;margin-bottom:12px}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--glow)}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--hl);border-radius:var(--r-card);
  box-shadow:0 10px 26px rgba(0,0,0,.3);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(46,134,255,.6);box-shadow:var(--shadow-card)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#13213A,#0A1424)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{
  font-size:17px;line-height:1.5;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;color:var(--t2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3)}
.card-foot .arrow{transition:transform .24s ease;color:var(--brand)}
.card:hover .card-foot .arrow{transform:translateX(3px);color:var(--glow)}
.card-link{display:block;color:inherit}
.card-link:hover{color:inherit}

/* ---------- CTA 下载区 ---------- */
.cta-wrap{padding:0 0 80px}
.cta-panel{
  position:relative;overflow:hidden;border:1px solid var(--hl);border-radius:var(--r-panel);
  padding:44px;background:linear-gradient(135deg,rgba(46,134,255,.16),rgba(57,230,196,.08));
  box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";position:absolute;right:-90px;top:-110px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,196,.3),transparent 68%);
}
.cta-panel h2{font-size:30px;position:relative}
.cta-panel p{margin-top:12px;font-size:15.5px;color:var(--t2);max-width:64ch;position:relative}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:26px;position:relative}
.btn-download{
  display:flex;align-items:center;gap:12px;height:auto;padding:14px 18px;text-align:left;
  border-radius:var(--r-btn);border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--t1);cursor:pointer;
  transition:transform .24s ease,border-color .24s ease,background-color .24s ease,box-shadow .24s ease;
}
.btn-download:hover{transform:translateY(-1px);border-color:var(--brand);background:rgba(46,134,255,.12);color:var(--t1)}
.btn-download.is-main{
  background:linear-gradient(115deg,var(--brand) 8%,var(--glow) 96%);
  border-color:transparent;color:#04121A;box-shadow:0 0 20px rgba(57,230,196,.35);
}
.btn-download.is-main:hover{color:#04121A;box-shadow:0 0 26px rgba(57,230,196,.5)}
.btn-download .ico{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.09);font-size:15px;font-weight:700;
}
.btn-download.is-main .ico{background:rgba(4,18,26,.16)}
.btn-download strong{display:block;font-size:15px;font-weight:600}
.btn-download em{display:block;font-style:normal;font-size:12.5px;color:var(--t3);margin-top:2px}
.btn-download.is-main em{color:rgba(4,18,26,.72)}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--t3);max-width:36ch;margin-bottom:16px}
.footer-col h4{font-size:15px;color:var(--t1);margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--t2);font-size:14px}
.footer-col a:hover{color:var(--glow)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);max-width:820px}
  .article-aside{order:-1}
  .toc{position:static}
  .article-body{max-width:100%}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .header-inner{height:68px;justify-content:space-between}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:60px 0}
  .section-head h2{font-size:27px}
  .download-grid{grid-template-columns:1fr}
  .cta-panel{padding:34px 26px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-banner .container{padding-top:26px;padding-bottom:34px}
  .article-title{font-size:30px}
  .article-section{padding:40px 0 56px}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:22px;margin-top:34px}
  .article-body h3{font-size:18px}
  .grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:6px}
  .footer-col{border-bottom:1px solid var(--line);padding-bottom:6px}
  .footer-col h4{display:flex;align-items:center;justify-content:space-between;cursor:pointer;margin:14px 0 0;padding:6px 0}
  .footer-col h4::after{content:"＋";color:var(--t3);font-weight:400}
  .footer-col.is-open h4::after{content:"－"}
  .footer-col ul{max-height:0;overflow:hidden;transition:max-height .24s ease}
  .footer-col.is-open ul{max-height:420px;margin-top:12px}
  .footer-col li{margin-bottom:12px}
  .cta-panel{padding:28px 20px}
  .cta-panel h2{font-size:24px}
  .section-head h2{font-size:24px}
  .footer-bottom{margin-top:26px}
}
@media (max-width:479px){
  .logo{font-size:16.5px}
  .article-title{font-size:26px}
  .meta-row{gap:8px}
  .pill{height:26px;padding:0 10px;font-size:12px}
  .btn-download{padding:12px 14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg-0:#060B14;
  --bg-1:#0A111F;
  --bg-2:#0E1728;
  --line:rgba(140,170,220,.14);
  --hl:rgba(255,255,255,.08);
  --t1:#EAF2FF;
  --t2:#A9BBD6;
  --t3:#6E81A0;
  --brand:#2E86FF;
  --glow:#39E6C4;
  --accent:#FFB020;
  --accent-soft:rgba(255,176,32,.14);
  --danger:#FF6B6B;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-card:0 18px 40px rgba(0,0,0,.45);
  --sh-float:0 24px 60px rgba(0,0,0,.6);
  --d:240ms;
  --ff:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.8;
  color:var(--t2);
  background:var(--bg-0);
  background-image:
    linear-gradient(rgba(140,170,220,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,170,220,.055) 1px,transparent 1px);
  background-size:64px 64px;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4{margin:0;color:var(--t1);line-height:1.3;font-weight:650;letter-spacing:0;}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--d) ease,border-color var(--d) ease,background-color var(--d) ease;}
a:hover{color:var(--glow);}
img{max-width:100%;display:block;border:0;}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:32px;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--t2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1;color:var(--accent);
  background:var(--accent-soft);
  border:1px solid rgba(255,176,32,.28);
  padding:8px 14px;border-radius:var(--r-pill);
  margin-bottom:18px;
}
.eyebrow i{font-size:12px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background-color var(--d) ease,box-shadow var(--d) ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,20,.88);
  box-shadow:0 12px 34px rgba(0,0,0,.5);
}
.nav-bar{
  display:flex;align-items:center;gap:20px;
  height:72px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--t1);font-weight:700;font-size:17px;letter-spacing:0;
  flex-shrink:0;
}
.logo:hover{color:var(--t1);}
.logo-mark{
  position:relative;width:24px;height:24px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--glow));
  clip-path:polygon(22% 0,100% 0,78% 100%,0 100%);
  box-shadow:0 0 18px rgba(57,230,196,.35);
}
.logo-mark::after{
  content:"";position:absolute;right:-2px;top:-2px;
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 12px rgba(255,176,32,.8);
}
.logo-text{white-space:nowrap;}
.nav-links{
  display:flex;align-items:center;gap:6px;
  margin-left:auto;
}
.nav-link{
  display:inline-flex;align-items:center;
  height:38px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:15px;color:var(--t2);
  border:1px solid transparent;
  position:relative;
  transition:all var(--d) ease;
}
.nav-link:hover{
  color:var(--brand);
  background:rgba(255,255,255,.05);
}
.nav-link.is-active{
  color:var(--t1);
  background:rgba(255,255,255,.06);
  border-color:var(--line);
}
.nav-link.is-active::before{
  content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%);
  width:4px;height:16px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),#ff8a00);
  box-shadow:0 0 12px rgba(255,176,32,.6);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:9px;
  height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:#04121A;
  background:linear-gradient(110deg,var(--brand),var(--glow));
  box-shadow:0 0 20px rgba(57,230,196,.32);
  margin-left:10px;
  transition:all var(--d) ease;
}
.nav-cta:hover{
  color:#04121A;transform:translateY(-1px);
  box-shadow:0 0 26px rgba(57,230,196,.48);
}
.nav-cta:active{transform:translateY(0);box-shadow:0 0 14px rgba(57,230,196,.3);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);
  color:var(--t1);font-size:18px;
  align-items:center;justify-content:center;
  margin-left:auto;
}
.nav-toggle:hover{background:rgba(46,134,255,.12);border-color:var(--brand);}

/* ---------- Breadcrumb ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--t3);
  padding:18px 0 0;
}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--accent);}
.crumb i{font-size:10px;color:var(--t3);}
.crumb .current{color:var(--t2);}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 84px;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.42;z-index:0;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(720px 380px at 82% 12%,rgba(255,176,32,.16),transparent 68%),
    linear-gradient(180deg,rgba(6,11,20,.72) 0%,rgba(6,11,20,.93) 62%,var(--bg-0) 100%);
}
.cat-hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
  margin-top:22px;
}
.cat-hero h1{
  font-size:50px;
  line-height:1.16;
  margin:8px 0 20px;
  letter-spacing:0;
}
.cat-hero h1 .mark{
  position:relative;white-space:nowrap;
}
.cat-hero h1 .mark::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;
  background:linear-gradient(90deg,rgba(255,176,32,.55),rgba(255,176,32,0));
  border-radius:4px;z-index:-1;
}
.hero-lead{
  font-size:17px;line-height:1.85;color:var(--t2);
  max-width:600px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:all var(--d) ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04121A;
  background:linear-gradient(110deg,var(--brand),var(--glow));
  box-shadow:0 0 20px rgba(57,230,196,.32);
}
.btn-primary:hover{
  color:#04121A;transform:translateY(-1px);
  box-shadow:0 0 26px rgba(57,230,196,.5);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(57,230,196,.3);}
.btn-ghost{
  color:var(--t1);
  border-color:var(--line);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{
  color:var(--t1);
  border-color:var(--brand);
  background:rgba(46,134,255,.12);
}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  padding:0;height:auto;
  color:var(--brand);font-size:15px;font-weight:600;
  border-bottom:2px solid rgba(46,134,255,.35);
  border-radius:0;
  transition:all var(--d) ease;
}
.btn-text:hover{color:var(--accent);border-bottom-color:var(--accent);}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";position:absolute;left:50%;top:50%;
  width:18px;height:18px;margin:-9px 0 0 -9px;
  border:2px solid rgba(4,18,26,.35);
  border-top-color:#04121A;border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

.hero-facts{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;max-width:640px;
}
.fact{
  background:rgba(14,23,40,.72);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px 18px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 var(--hl);
}
.fact .v{
  display:block;font-size:26px;font-weight:700;color:var(--t1);
  font-variant-numeric:tabular-nums;
}
.fact .v small{font-size:13px;color:var(--accent);margin-left:3px;font-weight:600;}
.fact .k{font-size:13px;color:var(--t3);}

.hero-panel{
  position:relative;
  border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(14,23,40,.9),rgba(10,17,31,.72));
  padding:22px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-float);
  overflow:hidden;
}
.hero-panel::before{
  content:"";position:absolute;inset:-1px;
  border-radius:inherit;
  background:radial-gradient(420px 220px at 78% 0%,rgba(255,176,32,.22),transparent 70%);
  pointer-events:none;
}
.hero-panel-head{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;margin-bottom:16px;position:relative;z-index:1;
}
.hero-panel-head span{font-size:14px;color:var(--t3);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;
  padding:7px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,176,32,.3);
  background:var(--accent-soft);
  color:var(--accent);font-weight:600;
}
.hero-panel img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:14px;border:1px solid var(--hl);
  position:relative;z-index:1;
}
.stat-rows{position:relative;z-index:1;margin-top:18px;}
.stat-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.stat-row:last-child{border-bottom:0;}
.stat-row .name{color:var(--t2);}
.stat-row .val{color:var(--t1);font-weight:700;font-variant-numeric:tabular-nums;}
.stat-row .val.accent{color:var(--accent);}

/* ---------- Intro two column ---------- */
.intro-grid{
  display:grid;grid-template-columns:1.08fr .92fr;
  gap:52px;align-items:center;
}
.intro-copy h2{font-size:32px;margin-bottom:18px;}
.intro-copy p{margin-bottom:20px;line-height:1.9;}
.intro-copy p:last-of-type{margin-bottom:0;}
.intro-media{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-card);
}
.intro-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .5s ease;
}
.intro-media:hover img{transform:scale(1.03);}
.intro-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:36px 20px 16px;
  font-size:13px;color:var(--t2);
  background:linear-gradient(180deg,transparent,rgba(6,11,20,.92));
}
.check-list{margin-top:26px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--t2);
}
.check-list i{
  color:var(--accent);font-size:14px;margin-top:6px;flex-shrink:0;
}

/* ---------- Timeline long bars ---------- */
.timeline{position:relative;padding-left:8px;}
.timeline::before{
  content:"";position:absolute;left:29px;top:12px;bottom:12px;width:1px;
  background:linear-gradient(180deg,rgba(255,176,32,.5),rgba(140,170,220,.12));
}
.tl-item{
  position:relative;
  display:grid;grid-template-columns:60px 1fr;
  gap:24px;
  padding:0 0 26px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-index{
  position:relative;z-index:1;
  width:44px;height:44px;margin-left:6px;
  display:flex;align-items:center;justify-content:center;
  border-radius:14px;
  font-size:15px;font-weight:700;
  color:var(--accent);
  background:var(--bg-2);
  border:1px solid rgba(255,176,32,.32);
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 18px rgba(255,176,32,.14);
}
.tl-body{
  background:linear-gradient(150deg,rgba(14,23,40,.86),rgba(10,17,31,.6));
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 26px;
  box-shadow:inset 0 1px 0 var(--hl);
  transition:border-color var(--d) ease,transform var(--d) ease,box-shadow var(--d) ease;
}
.tl-body:hover{
  border-color:rgba(255,176,32,.4);
  transform:translateX(4px);
  box-shadow:var(--sh-card);
}
.tl-body h3{
  font-size:20px;margin-bottom:10px;
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.tl-body h3 .chip{
  font-size:12px;font-weight:600;color:var(--accent);
  border:1px solid rgba(255,176,32,.3);
  background:var(--accent-soft);
  padding:5px 10px;border-radius:var(--r-pill);
}
.tl-body p{font-size:15.5px;line-height:1.88;margin-bottom:14px;}
.tl-points{display:grid;gap:8px;}
.tl-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--t2);
}
.tl-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--accent);margin-top:9px;flex-shrink:0;
  box-shadow:0 0 10px rgba(255,176,32,.7);
}

/* ---------- Metric bands ---------- */
.metric-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.metric{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-2);
  padding:24px 22px;
  box-shadow:inset 0 1px 0 var(--hl);
  transition:border-color var(--d) ease,transform var(--d) ease;
}
.metric:hover{border-color:rgba(255,176,32,.4);transform:translateY(-4px);}
.metric i{color:var(--accent);font-size:18px;margin-bottom:14px;display:block;}
.metric .m-val{
  font-size:32px;font-weight:700;color:var(--t1);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.metric .m-val span{font-size:15px;color:var(--t3);font-weight:600;margin-left:2px;}
.metric .m-name{font-size:15px;color:var(--t1);font-weight:600;margin-top:10px;}
.metric .m-desc{font-size:13.5px;color:var(--t3);margin-top:6px;line-height:1.7;}

/* ---------- Use case cards ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.case-card{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(14,23,40,.9),rgba(10,17,31,.6));
  overflow:hidden;
  display:flex;flex-direction:column;
  box-shadow:inset 0 1px 0 var(--hl);
  transition:transform var(--d) ease,border-color var(--d) ease,box-shadow var(--d) ease;
}
.case-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,134,255,.45);
  box-shadow:var(--sh-card);
}
.case-card .thumb{overflow:hidden;aspect-ratio:16/9;}
.case-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .45s ease;
}
.case-card:hover .thumb img{transform:scale(1.04);}
.case-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.case-body h3{font-size:19px;margin-bottom:10px;}
.case-body p{font-size:15px;line-height:1.85;flex:1;margin-bottom:16px;}
.case-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--accent);
  border-bottom:2px solid rgba(255,176,32,.3);
  align-self:flex-start;padding-bottom:2px;
}
.case-link:hover{color:var(--glow);border-bottom-color:var(--glow);gap:12px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg-1);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--d) ease,background-color var(--d) ease;
}
.faq-item:hover{border-color:rgba(255,176,32,.32);}
.faq-item[open]{border-color:rgba(255,176,32,.42);background:var(--bg-2);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 22px;
  font-size:16.5px;font-weight:600;color:var(--t1);
  cursor:pointer;
  list-style:none;
  transition:color var(--d) ease;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q:hover{color:var(--accent);}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  color:var(--accent);font-size:12px;
  transition:transform var(--d) ease,background-color var(--d) ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--accent-soft);}
.faq-a{
  padding:0 22px 20px;
  font-size:15.5px;line-height:1.88;color:var(--t2);
  animation:fadeIn var(--d) ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  border-radius:var(--r-panel);
  border:1px solid rgba(255,176,32,.26);
  background:
    radial-gradient(560px 260px at 12% 0%,rgba(255,176,32,.16),transparent 70%),
    linear-gradient(150deg,rgba(14,23,40,.94),rgba(10,17,31,.8));
  padding:52px 48px;
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.cta-panel h2{font-size:30px;margin-bottom:14px;}
.cta-panel > p{font-size:16px;max-width:660px;margin-bottom:32px;}
.dl-group{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;max-width:860px;
}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  padding:16px 18px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--t1);
  text-align:left;
  transition:all var(--d) ease;
}
.dl-btn:hover{
  color:var(--t1);border-color:var(--brand);
  background:rgba(46,134,255,.12);
  transform:translateY(-1px);
}
.dl-btn.is-main{
  background:linear-gradient(110deg,var(--brand),var(--glow));
  color:#04121A;border-color:transparent;
  box-shadow:0 0 20px rgba(57,230,196,.32);
}
.dl-btn.is-main:hover{
  color:#04121A;transform:translateY(-1px);
  box-shadow:0 0 26px rgba(57,230,196,.5);
}
.dl-btn i{font-size:20px;flex-shrink:0;}
.dl-btn .dl-txt{display:flex;flex-direction:column;min-width:0;}
.dl-btn .dl-txt strong{font-size:15.5px;font-weight:700;display:block;}
.dl-btn .dl-txt small{font-size:12px;opacity:.78;line-height:1.5;}
.qr-box{
  margin-top:18px;
  display:none;
  align-items:center;gap:18px;
  border:1px dashed rgba(255,176,32,.4);
  background:rgba(255,176,32,.06);
  border-radius:var(--r-card);
  padding:18px 20px;
  max-width:520px;
}
.qr-box.is-open{display:flex;}
.qr-code{
  width:88px;height:88px;flex-shrink:0;border-radius:12px;
  border:1px solid var(--line);
  background:
    repeating-linear-gradient(45deg,rgba(255,255,255,.14) 0 6px,transparent 6px 12px),
    var(--bg-2);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:26px;
}
.qr-box p{font-size:14px;line-height:1.8;}

/* ---------- Related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rel-card{
  display:flex;align-items:center;gap:16px;
  padding:20px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-2);
  color:var(--t1);
  transition:all var(--d) ease;
}
.rel-card:hover{
  color:var(--t1);
  border-color:var(--brand);
  transform:translateY(-4px);
  box-shadow:var(--sh-card);
}
.rel-card .rel-ico{
  width:46px;height:46px;flex-shrink:0;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(46,134,255,.14);
  border:1px solid rgba(46,134,255,.28);
  color:var(--brand);font-size:18px;
}
.rel-card .rel-txt strong{display:block;font-size:16px;margin-bottom:4px;}
.rel-card .rel-txt small{font-size:13px;color:var(--t3);line-height:1.6;}
.rel-card .rel-arrow{margin-left:auto;color:var(--t3);transition:transform var(--d) ease,color var(--d) ease;}
.rel-card:hover .rel-arrow{transform:translateX(3px);color:var(--accent);}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.85;color:var(--t3);margin-bottom:18px;max-width:340px;}
.footer-col h4{
  font-size:15px;color:var(--t1);margin-bottom:18px;font-weight:650;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14.5px;color:var(--t2);}
.footer-col a:hover{color:var(--glow);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;
  align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--t3);
}

/* ---------- Mobile drawer ---------- */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;
    top:72px;left:0;right:0;bottom:0;
    z-index:70;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:20px 20px 96px;
    background:rgba(6,11,20,.97);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    overflow-y:auto;
    transform:translateY(-8px);
    opacity:0;visibility:hidden;
    transition:opacity var(--d) ease,transform var(--d) ease,visibility var(--d) ease;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:none;}
  .nav-link{
    height:48px;border-radius:12px;font-size:16px;
    border:1px solid transparent;
  }
  .nav-link.is-active{background:rgba(255,255,255,.06);border-color:var(--line);}
  .nav-cta{
    position:fixed;
    left:20px;right:20px;bottom:20px;
    margin:0;justify-content:center;height:48px;
    z-index:71;
  }
  .nav-links:not(.is-open) ~ .nav-cta{display:none;}
}

@media (max-width:1024px){
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .cat-hero h1{font-size:40px;}
  .cat-hero{padding:56px 0 64px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .case-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .related-grid{grid-template-columns:1fr;}
  .cta-panel{padding:40px 32px;}
  .dl-group{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head h2{font-size:26px;}
  .intro-copy h2{font-size:26px;}
  .cta-panel h2{font-size:24px;}
}

@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .nav-bar{height:64px;}
  .nav-links{top:64px;}
  .logo-text{font-size:15.5px;}
  .cat-hero h1{font-size:32px;line-height:1.25;}
  .cat-hero{padding:44px 0 52px;}
  .hero-lead{font-size:16px;}
  .hero-facts{grid-template-columns:1fr;gap:10px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{justify-content:center;height:46px;}
  .timeline{padding-left:0;}
  .timeline::before{left:21px;}
  .tl-item{grid-template-columns:44px 1fr;gap:14px;padding-bottom:20px;}
  .tl-index{width:36px;height:36px;margin-left:4px;border-radius:12px;font-size:13px;}
  .tl-body{padding:18px 18px 20px;}
  .tl-body h3{font-size:18px;}
  .metric-grid{grid-template-columns:1fr;gap:14px;}
  .case-grid{grid-template-columns:1fr;}
  .dl-group{grid-template-columns:1fr;}
  .cta-panel{padding:32px 20px;border-radius:16px;}
  .faq-q{font-size:15.5px;padding:14px 16px;min-height:52px;}
  .faq-a{padding:0 16px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:12px;}
  .footer-col{border-bottom:1px solid var(--line);padding:18px 0;}
  .footer-col h4{margin-bottom:0;cursor:pointer;display:flex;align-items:center;justify-content:space-between;}
  .footer-col h4::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--t3);transition:transform var(--d) ease;}
  .footer-col.is-open h4::after{transform:rotate(180deg);}
  .footer-col ul{max-height:0;overflow:hidden;transition:max-height var(--d) ease;gap:0;}
  .footer-col.is-open ul{max-height:280px;padding-top:14px;gap:12px;}
  .footer-brand{border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:6px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .qr-box{flex-direction:column;align-items:flex-start;}
}

@media (max-width:480px){
  .cat-hero h1{font-size:28px;}
  .fact .v{font-size:22px;}
  .metric .m-val{font-size:26px;}
  .btn{font-size:14.5px;padding:0 18px;}
  .rel-card{flex-wrap:wrap;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category3 */
:root{
  --bg-0:#060B14;
  --bg-1:#0A111F;
  --bg-2:#0E1728;
  --line:rgba(140,170,220,.14);
  --hl:rgba(255,255,255,.08);
  --t1:#EAF2FF;
  --t2:#A9BBD6;
  --t3:#6E81A0;
  --brand:#2E86FF;
  --glow:#39E6C4;
  --warn:#FFB020;
  --accent:#6FD2FF;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-float:0 24px 60px rgba(0,0,0,.6);
  --ease:240ms cubic-bezier(.4,0,.2,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{color:var(--t1);margin:0;font-weight:700;letter-spacing:0}
h1{font-size:48px;line-height:1.16}
h2{font-size:32px;line-height:1.3}
h3{font-size:20px;line-height:1.45}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{scroll-margin-top:96px}
.section{padding:96px 0}
.section-alt{background:var(--bg-1)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--accent);margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);
}
.section-head p{margin-top:14px;color:var(--t2);font-size:16px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,11,20,.7);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,11,20,.86);
  box-shadow:0 12px 32px rgba(0,0,0,.45);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  position:relative;width:20px;height:20px;flex:0 0 20px;
  background:linear-gradient(120deg,var(--brand),var(--accent));
  clip-path:polygon(22% 0,100% 0,78% 100%,0 100%);
}
.logo-mark::after{
  content:"";position:absolute;right:-3px;top:-3px;width:7px;height:7px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px var(--accent);
}
.logo-text{color:var(--t1);font-size:18px;font-weight:700;letter-spacing:.01em}
.logo:hover .logo-text{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:38px;padding:0 16px;border-radius:999px;
  color:var(--t2);font-size:15px;font-weight:500;
  transition:color var(--ease),background var(--ease);
}
.nav-links .nav-link:nth-child(2),
.nav-links .nav-link:nth-child(3){background:rgba(255,255,255,.06)}
.nav-link:hover{color:var(--brand);background:rgba(46,134,255,.10)}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;
  background:var(--accent);opacity:0;transform:scaleX(.3);
  transition:opacity var(--ease),transform var(--ease);
}
.nav-link:hover::after{opacity:1;transform:scaleX(1)}
.nav-link.is-active{
  color:var(--t1);background:rgba(255,255,255,.08);
}
.nav-link.is-active::before{
  content:"";position:absolute;left:5px;top:50%;transform:translateY(-50%);
  width:4px;height:15px;border-radius:2px;background:var(--accent);
  box-shadow:0 0 10px var(--accent);
}
.nav-link.is-active::after{opacity:0}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--t1);font-size:17px;cursor:pointer;
  transition:background var(--ease),border-color var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);background:rgba(46,134,255,.12)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease),opacity var(--ease);
}
.btn-primary{
  background:linear-gradient(100deg,var(--brand),var(--accent));
  color:#04121A;
  box-shadow:0 0 20px rgba(111,210,255,.32);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 0 26px rgba(111,210,255,.5);
  color:#04121A;
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(111,210,255,.32)}
.btn-ghost{
  background:transparent;border-color:var(--line);color:var(--t1);
}
.btn-ghost:hover{
  background:rgba(46,134,255,.12);border-color:var(--brand);color:var(--t1);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-text{
  height:auto;padding:0;border:0;border-radius:0;background:none;
  color:var(--accent);border-bottom:2px solid rgba(111,210,255,.45);
  font-weight:600;
}
.btn-text:hover{color:var(--glow);border-bottom-color:var(--glow)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed}

.btn-group{display:flex;flex-wrap:wrap;gap:14px}
.btn-group .btn{min-width:186px;flex-direction:column;height:auto;padding:12px 20px;gap:3px}
.btn-group .btn i{font-size:16px}
.btn-group .btn span{font-size:15px;font-weight:600;line-height:1.3}
.btn-group .btn small{font-size:12px;font-weight:400;opacity:.75;line-height:1.4}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 13px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.01em;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--t2);
}
.badge-accent{color:var(--accent);border-color:rgba(111,210,255,.36);background:rgba(111,210,255,.10)}
.badge-warn{color:var(--warn);border-color:rgba(255,176,32,.32);background:rgba(255,176,32,.10)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--t3);margin-bottom:22px}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--t3);opacity:.7}
.breadcrumb .current{color:var(--accent)}

/* ---------- 分类 Hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.86) 0%,rgba(6,11,20,.93) 62%,var(--bg-0) 100%);
}
.page-hero-bg::before{
  content:"";position:absolute;inset:0;z-index:1;
  background-image:linear-gradient(rgba(140,170,220,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(140,170,220,.055) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero-inner{position:relative;z-index:2;padding:82px 0 88px}
.page-hero h1{margin:18px 0 18px;max-width:900px}
.page-hero h1 em{
  font-style:normal;color:var(--accent);
  box-shadow:inset 0 -0.28em 0 rgba(111,210,255,.18);
}
.lede{max-width:720px;font-size:17px;line-height:1.85;color:var(--t2)}
.page-hero .btn-group{margin-top:32px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;
}
.hero-stats li{
  flex:1 1 170px;min-width:150px;
  padding:16px 18px;border-radius:var(--r-card);
  border:1px solid var(--line);background:rgba(14,23,40,.6);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-stats .k{display:block;font-size:12.5px;color:var(--t3);margin-bottom:4px}
.hero-stats .v{display:block;font-size:22px;font-weight:700;color:var(--t1);line-height:1.25}
.hero-stats .v.accent{color:var(--accent)}

/* ---------- 通用卡片 ---------- */
.card{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:linear-gradient(165deg,rgba(14,23,40,.92),rgba(10,17,31,.78));
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.card:hover{transform:translateY(-4px);border-color:rgba(111,210,255,.44);box-shadow:0 24px 52px rgba(0,0,0,.55)}
.card-body{padding:24px}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}

/* ---------- 图文双栏 ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
}
.split-media{
  border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);background:var(--bg-2);
}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-text h2{margin-bottom:18px}
.split-text p+p{margin-top:18px}
.check-list{margin-top:24px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--t2);font-size:15.5px}
.check-list i{
  flex:0 0 22px;width:22px;height:22px;border-radius:7px;margin-top:5px;
  display:grid;place-items:center;font-size:11px;
  color:var(--accent);background:rgba(111,210,255,.12);border:1px solid rgba(111,210,255,.3);
}

/* ---------- 横向分区 ---------- */
.band-stack{display:grid;gap:22px}
.band{
  display:grid;grid-template-columns:236px 1fr;gap:30px;
  padding:28px;border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(14,23,40,.94),rgba(10,17,31,.72));
  box-shadow:var(--shadow-card);
  transition:border-color var(--ease);
}
.band:hover{border-color:rgba(111,210,255,.34)}
.band-side h3{margin-bottom:10px;display:flex;align-items:center;gap:10px}
.band-side h3 i{color:var(--accent);font-size:18px}
.band-side p{font-size:14px;color:var(--t3);line-height:1.7}
.band-side .badge{margin-top:14px}
.band-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mini-card{
  padding:18px;border-radius:14px;
  border:1px solid var(--line);background:rgba(6,11,20,.5);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(111,210,255,.4);background:rgba(46,134,255,.08)}
.mini-card .step{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:8px;margin-bottom:12px;
  font-size:12.5px;font-weight:700;color:#04121A;
  background:linear-gradient(120deg,var(--brand),var(--accent));
}
.mini-card h4{font-size:15.5px;margin-bottom:8px}
.mini-card p{font-size:14px;line-height:1.72;color:var(--t2)}

/* ---------- 规格行 ---------- */
.spec-list{
  border:1px solid var(--line);border-radius:var(--r-panel);
  background:rgba(10,17,31,.7);overflow:hidden;
}
.spec-row{
  display:grid;grid-template-columns:210px 1fr auto;gap:20px;align-items:center;
  padding:18px 26px;border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.spec-row:last-child{border-bottom:0}
.spec-row:hover{background:rgba(46,134,255,.07)}
.spec-name{display:flex;align-items:center;gap:11px;color:var(--t1);font-weight:600;font-size:15px}
.spec-name i{color:var(--accent);font-size:15px;width:18px;text-align:center}
.spec-value{color:var(--t2);font-size:15px}
.spec-tag{
  font-size:12.5px;font-weight:600;color:var(--warn);
  padding:4px 12px;border-radius:999px;
  background:rgba(255,176,32,.1);border:1px solid rgba(255,176,32,.28);
  white-space:nowrap;
}

/* ---------- 要点卡片矩阵 ---------- */
.tip-card{padding:26px;display:flex;flex-direction:column;height:100%}
.tip-card .icon{
  width:44px;height:44px;border-radius:13px;margin-bottom:16px;
  display:grid;place-items:center;font-size:18px;color:var(--accent);
  background:rgba(111,210,255,.11);border:1px solid rgba(111,210,255,.3);
}
.tip-card h3{margin-bottom:10px}
.tip-card p{font-size:15px;line-height:1.78}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(14,23,40,.7);overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(111,210,255,.32)}
.faq-item.is-open{border-color:rgba(111,210,255,.46);background:rgba(14,23,40,.9)}
.faq-q{
  width:100%;min-height:56px;padding:14px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;cursor:pointer;text-align:left;
  color:var(--t1);font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:9px;
  display:grid;place-items:center;font-size:12px;color:var(--accent);
  border:1px solid rgba(111,210,255,.34);background:rgba(111,210,255,.08);
  transition:transform var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height var(--ease);
}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{padding:0 22px 22px;font-size:15.5px;line-height:1.85;color:var(--t2)}

/* ---------- 相关入口卡 ---------- */
.link-card{display:flex;flex-direction:column;overflow:hidden;height:100%}
.link-card .thumb{overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;background:var(--bg-2)}
.link-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--ease)}
.link-card:hover .thumb img{transform:scale(1.04)}
.link-card .card-body{display:flex;flex-direction:column;gap:12px;flex:1}
.link-card .row{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;font-size:13.5px;color:var(--t3)}
.link-card .arrow{color:var(--accent);transition:transform var(--ease)}
.link-card:hover .arrow{transform:translateX(3px)}
.link-card p{font-size:14.5px;line-height:1.75}

/* ---------- 底部 CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid rgba(111,210,255,.26);
  background:linear-gradient(120deg,rgba(14,23,40,.96),rgba(6,11,20,.9));
  padding:56px 48px;
  box-shadow:var(--shadow-float);
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,210,255,.22),transparent 68%);
}
.cta-panel .cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.cta-panel h2{margin-bottom:14px}
.cta-panel p{max-width:560px}
.qr-pop{
  margin-top:20px;padding:18px 22px;border-radius:14px;
  border:1px dashed rgba(111,210,255,.4);background:rgba(111,210,255,.06);
  font-size:14px;color:var(--t2);max-width:420px;
}
.qr-pop strong{color:var(--t1)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;padding:72px 0 28px;
  background:var(--bg-1);border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14.5px;line-height:1.8;color:var(--t2);max-width:340px}
.footer-brand .btn-text{margin-top:18px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--t1)}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:var(--t2);font-size:14.5px}
.footer-col a:hover{color:var(--glow)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  h1{font-size:44px}
  .spec-row{grid-template-columns:180px 1fr auto}
}
@media (max-width:1023px){
  h1{font-size:38px}
  h2{font-size:28px}
  .section{padding:72px 0}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .band{grid-template-columns:1fr;gap:20px}
  .band-cards{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{order:-1}
  .cta-panel{padding:44px 32px}
  .cta-panel .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;left:0;right:0;top:64px;bottom:0;z-index:70;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:20px 20px 110px;margin:0;
    background:rgba(6,11,20,.97);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    overflow-y:auto;
    transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-link{height:48px;border-radius:12px;padding:0 18px;font-size:16px;width:100%}
  .nav-link::after{display:none}
  .nav-link.is-active::before{left:6px;height:18px}
  .nav-toggle{display:inline-grid;place-items:center}
  .header-inner{height:64px}
  .header-cta .btn-sm{display:none}
  .site-header{
    position:sticky;
  }
}
@media (max-width:767px){
  .container{padding:0 16px}
  h1{font-size:31px}
  h2{font-size:24px}
  h3{font-size:18.5px}
  body{font-size:15.5px}
  .section{padding:56px 0}
  .page-hero-inner{padding:56px 0 62px}
  .lede{font-size:16px}
  .grid-3,.grid-2,.band-cards{grid-template-columns:1fr}
  .btn-group{flex-direction:column;align-items:stretch}
  .btn-group .btn{width:100%;min-width:0}
  .hero-stats li{flex:1 1 100%}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:16px 18px}
  .spec-tag{justify-self:start}
  .cta-panel{padding:34px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}