/* roulang page: index */
/* ===== 设计令牌 ===== */
:root{
  --bg-0:#060A12; --bg-1:#0A1120; --bg-2:#111A2E;
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.16);
  --brand-500:#24E0C8; --brand-600:#12B7A6; --brand-300:#7BF3E4;
  --blue-400:#6FA8FF; --amber-500:#FFB020;
  --ok:#3DDC97; --warn:#FFB020; --err:#FF6B6B;
  --text-0:#EAF2FF; --text-1:#A8B7CF; --text-2:#6C7C96;
  --r-lg:18px; --r-md:12px; --r-sm:6px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.75);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gap:24px;
  --sec:112px;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
/* ===== reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px; line-height:1.85; color:var(--text-0);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 6% -8%, rgba(36,224,200,.10), transparent 66%),
    radial-gradient(880px 620px at 102% 10%, rgba(111,168,255,.09), transparent 64%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  padding-bottom:0;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--blue-400);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-300);}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px;}
h1{font-size:clamp(30px,5vw,52px);line-height:1.15;}
h2{font-size:clamp(24px,3.2vw,34px);}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:16px;font-weight:600;}
p{margin:0 0 1em;color:var(--text-1);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;box-shadow:0 0 0 4px rgba(123,243,228,.22);border-radius:8px;}
::selection{background:rgba(36,224,200,.28);color:#fff;}
/* ===== 布局 ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section--tight{padding:72px 0;}
.text-1{color:var(--text-1);}
.text-2{color:var(--text-2);}
.mono-num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand-300);margin-bottom:16px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand-500);display:block;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.section-head p{margin:10px 0 0;max-width:62ch;}
.ghost-link{font-size:14px;color:var(--blue-400);white-space:nowrap;}
.ghost-link:hover{color:var(--brand-300);text-decoration:underline;text-underline-offset:4px;}
/* ===== 顶部状态条 ===== */
.topbar{
  position:relative;z-index:820;background:linear-gradient(90deg,rgba(36,224,200,.12),rgba(111,168,255,.08));
  border-bottom:1px solid var(--line);
}
.topbar__inner{display:flex;align-items:center;gap:14px;min-height:38px;font-size:13px;color:var(--text-1);}
.topbar__dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(61,220,151,.16);flex:0 0 auto;}
.topbar__label{color:var(--text-0);font-weight:600;}
.topbar__count{color:var(--amber-500);font-family:var(--mono);font-variant-numeric:tabular-nums;}
.topbar__close{margin-left:auto;color:var(--text-2);width:28px;height:28px;border-radius:8px;display:grid;place-items:center;transition:background .2s var(--ease),color .2s var(--ease);}
.topbar__close:hover{background:rgba(255,255,255,.06);color:var(--text-0);}
/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:810;
  background:rgba(10,17,32,.74);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:70px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-size:17px;font-weight:700;text-decoration:none;letter-spacing:.3px;flex:0 0 auto;}
.logo:hover{color:var(--text-0);}
.logo__mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-500),#0FA9D8);
  color:#04121A;font-size:14px;font-weight:800;letter-spacing:0;
  box-shadow:0 0 0 1px rgba(36,224,200,.45),0 8px 22px -12px rgba(36,224,200,.75);
}
.logo__text b{color:var(--brand-300);font-weight:700;}
.logo__sep{color:var(--text-2);margin:0 4px;font-weight:400;}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav__link{
  position:relative;display:inline-block;padding:9px 13px;border-radius:10px;
  font-size:14.5px;color:var(--text-1);text-decoration:none;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:var(--brand-500);transform:scaleX(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.nav__link:hover{color:var(--text-0);background:rgba(255,255,255,.04);}
.nav__link:active{background:rgba(255,255,255,.08);}
.nav__link.is-active{color:var(--text-0);}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__tail{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:var(--r-sm);font-size:12.5px;line-height:1.5;
  border:1px solid var(--line-strong);color:var(--text-1);background:rgba(255,255,255,.03);
}
.badge--live{border-color:rgba(61,220,151,.4);color:var(--ok);background:rgba(61,220,151,.08);}
.badge--amber{border-color:rgba(255,176,32,.4);color:var(--amber-500);background:rgba(255,176,32,.08);}
.badge__pulse{width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 1.8s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.8);}}
.nav__toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-md);
  border:1px solid var(--line-strong);color:var(--text-0);
  place-items:center;transition:background .2s var(--ease);
}
.nav__toggle:hover{background:rgba(255,255,255,.06);}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-md);font-size:15px;font-weight:600;
  text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);color:#04121A;
  box-shadow:0 0 0 1px rgba(36,224,200,.5),0 10px 30px -10px rgba(36,224,200,.55);
}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.6),0 16px 38px -10px rgba(36,224,200,.7);color:#04121A;}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{border-color:var(--line-strong);color:var(--text-0);background:transparent;}
.btn--ghost:hover{background:rgba(255,255,255,.06);color:var(--text-0);transform:translateY(-2px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--pill{border-radius:999px;}
.btn--block{width:100%;}
.btn--sm{padding:9px 18px;font-size:14px;}
/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:88px 0 96px;min-height:calc(88vh - 108px);display:flex;align-items:center;}
.hero__bg{
  position:absolute;inset:0;z-index:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center right;
  opacity:.16;filter:saturate(.85);
}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--bg-0) 12%,rgba(6,10,18,.72) 52%,rgba(6,10,18,.4) 100%),
             linear-gradient(180deg,rgba(6,10,18,.35),var(--bg-0) 94%);
}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero h1{margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--brand-300);}
.hero__sub{font-size:17px;line-height:1.9;color:var(--text-1);max-width:52ch;margin-bottom:30px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero__metrics{display:flex;flex-wrap:wrap;gap:14px 34px;border-top:1px solid var(--line);padding-top:24px;}
.metric{min-width:96px;}
.metric__num{display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--text-0);line-height:1.2;}
.metric__num span{font-size:14px;color:var(--brand-300);margin-left:2px;font-family:inherit;}
.metric__label{display:block;font-size:13px;color:var(--text-2);margin-top:2px;}
/* 设备框 */
.hero__device{position:relative;display:flex;justify-content:center;}
.device{
  position:relative;width:100%;max-width:320px;border-radius:32px;
  border:1px solid var(--line-strong);background:var(--bg-1);
  padding:12px;box-shadow:0 40px 90px -40px rgba(0,0,0,.95);
}
.device__screen{border-radius:24px;overflow:hidden;border:1px solid var(--line);background:var(--bg-2);}
.device__screen img{width:100%;aspect-ratio:9/16;object-fit:cover;}
.device__notch{position:absolute;top:20px;left:50%;transform:translateX(-50%);width:74px;height:6px;border-radius:6px;background:rgba(255,255,255,.14);}
.glass-card{
  position:absolute;right:-8px;bottom:44px;width:212px;padding:16px 18px;border-radius:var(--r-lg);
  background:rgba(17,26,46,.62);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
}
.glass-card__row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-1);}
.glass-card__row + .glass-card__row{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);}
.glass-card__val{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:16px;color:var(--brand-300);font-weight:700;}
.glass-card__val--amber{color:var(--amber-500);}
/* ===== 卖点区 ===== */
.features-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:28px;align-items:start;}
.panel{
  position:relative;border-radius:var(--r-lg);border:1px solid var(--line);
  background:rgba(255,255,255,.03);box-shadow:var(--shadow-card);
  padding:28px;transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.panel:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.panel--feature{padding:36px;}
.panel__index{
  font-family:var(--mono);font-size:44px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(36,224,200,.55);
  display:block;margin-bottom:20px;
}
.panel__icon{
  width:44px;height:44px;border-radius:var(--r-md);display:grid;place-items:center;
  background:rgba(36,224,200,.1);border:1px solid rgba(36,224,200,.28);color:var(--brand-300);
  margin-bottom:18px;
}
.panel h3{margin-bottom:12px;}
.panel p{margin-bottom:0;font-size:15px;}
.panel__divider{height:1px;background:var(--line);margin:22px 0;border:0;}
.feature-list{display:grid;gap:18px;}
.mini-card{display:flex;gap:16px;align-items:flex-start;padding:22px 24px;border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(255,255,255,.03);transition:border-color .22s var(--ease),transform .22s var(--ease);}
.mini-card:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.mini-card__icon{width:38px;height:38px;flex:0 0 auto;border-radius:var(--r-md);display:grid;place-items:center;background:rgba(111,168,255,.1);border:1px solid rgba(111,168,255,.26);color:var(--blue-400);}
.mini-card h4{margin-bottom:6px;font-size:16px;}
.mini-card p{margin:0;font-size:14.5px;line-height:1.75;}
/* ===== 演示区 ===== */
.demo-grid{display:grid;grid-template-columns:264px 1fr;gap:28px;align-items:start;}
.demo-thumbs{display:grid;gap:14px;}
.demo-thumb{
  display:flex;align-items:center;gap:14px;padding:12px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.03);text-align:left;width:100%;
  transition:border-color .22s var(--ease),background .22s var(--ease),transform .22s var(--ease);
}
.demo-thumb img{width:56px;height:56px;border-radius:10px;object-fit:cover;flex:0 0 auto;}
.demo-thumb span{font-size:14.5px;color:var(--text-1);line-height:1.5;}
.demo-thumb:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.demo-thumb[aria-selected="true"]{border-color:rgba(36,224,200,.5);background:rgba(36,224,200,.07);}
.demo-thumb[aria-selected="true"] span{color:var(--text-0);}
.demo-stage{border-radius:var(--r-lg);border:1px solid var(--line);background:var(--bg-1);padding:16px;box-shadow:var(--shadow-card);}
.demo-stage img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);}
.demo-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:28px;}
.demo-step{padding:16px 18px;border-radius:var(--r-md);border:1px solid var(--line);background:rgba(255,255,255,.03);transition:border-color .22s var(--ease);}
.demo-step b{display:block;font-family:var(--mono);font-size:13px;color:var(--brand-300);margin-bottom:6px;}
.demo-step span{font-size:14px;color:var(--text-1);}
.demo-step.is-active{border-color:rgba(36,224,200,.42);}
/* ===== 证据区 ===== */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:32px 0;}
.stat__num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:clamp(28px,3.4vw,40px);font-weight:700;line-height:1.1;color:var(--text-0);}
.stat__num span{font-size:15px;color:var(--brand-300);margin-left:4px;font-family:inherit;font-weight:600;}
.stat__label{font-size:13px;color:var(--text-2);margin-top:6px;}
.proof-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:32px;margin-top:44px;align-items:start;}
.review-card{display:flex;gap:16px;padding:24px;border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(255,255,255,.03);transition:border-color .22s var(--ease),transform .22s var(--ease);}
.review-card:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.review-card + .review-card{margin-top:16px;}
.avatar{width:48px;height:48px;flex:0 0 auto;border-radius:14px;display:grid;place-items:center;font-weight:700;font-size:16px;color:#04121A;background:linear-gradient(135deg,var(--brand-500),#0FA9D8);}
.avatar--b{background:linear-gradient(135deg,#6FA8FF,#3F6FD8);color:#04121A;}
.avatar--c{background:linear-gradient(135deg,#FFB020,#E08A00);color:#1A1206;}
.review-card__head{display:flex;align-items:center;gap:12px;margin-bottom:10px;}
.review-card__name{font-size:15px;font-weight:600;color:var(--text-0);}
.review-card__meta{font-size:13px;color:var(--text-2);}
.stars{color:var(--amber-500);font-size:13px;letter-spacing:2px;margin-left:auto;}
.review-card p{margin:0;font-size:14.5px;line-height:1.8;}
.timeline{position:relative;padding-left:26px;}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;background:var(--line-strong);}
.timeline__item{position:relative;padding-bottom:26px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item::before{content:"";position:absolute;left:-26px;top:8px;width:13px;height:13px;border-radius:50%;background:var(--bg-0);border:2px solid var(--brand-500);}
.timeline__item:last-child::before{border-color:var(--amber-500);}
.timeline__year{font-family:var(--mono);font-size:13px;color:var(--brand-300);margin-bottom:4px;}
.timeline__title{font-size:15px;font-weight:600;color:var(--text-0);margin-bottom:4px;}
.timeline__desc{font-size:14px;color:var(--text-2);margin:0;}
/* ===== 价格区 ===== */
.countdown{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:center;
  padding:16px 22px;margin-bottom:36px;border-radius:var(--r-md);
  border:1px solid rgba(255,176,32,.28);background:rgba(255,176,32,.06);
  font-size:14px;color:var(--text-1);text-align:center;
}
.countdown strong{color:var(--amber-500);font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:18px;letter-spacing:1px;}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{position:relative;display:flex;flex-direction:column;padding:30px 26px;border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(255,255,255,.03);box-shadow:var(--shadow-card);transition:border-color .22s var(--ease),transform .22s var(--ease);}
.price-card:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.price-card--hl{
  background:rgba(17,26,46,.62);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border-color:rgba(36,224,200,.36);
}
.price-card--hl::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;border-radius:2px 2px 0 0;background:linear-gradient(90deg,var(--brand-500),#0FA9D8);}
.price-card__tag{position:absolute;top:-12px;right:20px;padding:4px 12px;border-radius:var(--r-sm);background:linear-gradient(135deg,#24E0C8,#0FA9D8);color:#04121A;font-size:12.5px;font-weight:700;}
.price-card h3{margin-bottom:6px;}
.price-card__desc{font-size:13.5px;color:var(--text-2);margin-bottom:20px;}
.price-card__amount{display:flex;align-items:baseline;gap:6px;margin-bottom:6px;}
.price-card__amount b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:38px;line-height:1;font-weight:700;color:var(--text-0);}
.price-card__amount i{font-style:normal;font-size:15px;color:var(--text-2);}
.price-card__period{font-size:13px;color:var(--text-2);margin-bottom:22px;}
.feature-rows{display:grid;gap:12px;padding:22px 0;margin-bottom:auto;border-top:1px solid var(--line);}
.feature-row{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-1);line-height:1.7;}
.feature-row svg{flex:0 0 auto;margin-top:5px;color:var(--brand-500);}
.price-card .btn{margin-top:22px;}
/* ===== 资讯区 ===== */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:rgba(255,255,255,.03);box-shadow:var(--shadow-card);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.news-card:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.news-card__media{display:block;overflow:hidden;}
.news-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-card__media img{transform:scale(1.04);}
.news-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.news-card__title{font-size:17px;font-weight:600;line-height:1.55;color:var(--text-0);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__title:hover{color:var(--brand-300);}
.news-card__excerpt{font-size:14.5px;color:var(--text-1);line-height:1.75;margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2);}
.news-card__meta .badge{font-size:12px;padding:3px 8px;}
.news-card__more{margin-left:auto;color:var(--blue-400);font-size:13px;white-space:nowrap;}
.news-card__more:hover{color:var(--brand-300);text-decoration:underline;text-underline-offset:3px;}
.empty-state{
  grid-column:1/-1;display:grid;place-items:center;gap:12px;text-align:center;
  padding:64px 24px;border-radius:var(--r-lg);border:1px dashed var(--line-strong);background:rgba(255,255,255,.02);
}
.empty-state__icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;border:1px solid var(--line-strong);color:var(--text-2);}
.empty-state p{margin:0;color:var(--text-2);font-size:14.5px;}
/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.03);overflow:hidden;transition:border-color .22s var(--ease);}
.faq-item.is-open{border-color:rgba(36,224,200,.36);}
.faq-q{
  display:flex;align-items:center;gap:16px;width:100%;text-align:left;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text-0);line-height:1.6;
  transition:background .2s var(--ease);
}
.faq-q:hover{background:rgba(255,255,255,.035);}
.faq-q__idx{font-family:var(--mono);font-size:13px;color:var(--brand-300);flex:0 0 auto;}
.faq-q__icon{margin-left:auto;flex:0 0 auto;color:var(--text-2);transition:transform .3s var(--ease),color .3s var(--ease);}
.faq-item.is-open .faq-q__icon{transform:rotate(135deg);color:var(--brand-300);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a__inner{padding:0 24px 22px 61px;font-size:14.5px;line-height:1.9;color:var(--text-1);}
/* ===== CTA 带 ===== */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(10,17,32,.6);}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 300px at 22% 50%, rgba(36,224,200,.14), transparent 70%);
}
.cta-band__inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap;}
.cta-band h2{margin-bottom:8px;}
.cta-band p{margin:0;font-size:15px;}
/* ===== 页脚 ===== */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:36px;padding-bottom:48px;}
.site-footer h4{font-size:15px;color:var(--text-0);margin-bottom:18px;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14.5px;color:var(--text-1);}
.footer-links a:hover{color:var(--brand-300);}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:var(--text-2);max-width:34ch;margin-bottom:20px;}
.socials{display:flex;gap:10px;}
.socials a{width:38px;height:38px;border-radius:var(--r-md);border:1px solid var(--line);display:grid;place-items:center;color:var(--text-1);transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);}
.socials a:hover{border-color:var(--line-strong);color:var(--brand-300);transform:translateY(-2px);}
.footer-form{max-width:560px;}
.footer-form .field{margin-bottom:14px;}
.footer-form label{display:block;font-size:13.5px;color:var(--text-1);margin-bottom:7px;}
.footer-form input{
  width:100%;padding:11px 14px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-0);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.footer-form input::placeholder{color:var(--text-2);}
.footer-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(36,224,200,.16);}
.footer-form input.is-error{border-color:var(--err);}
.form-hint{font-size:13px;color:var(--err);margin-top:6px;display:none;}
.form-hint.is-visible{display:block;}
.form-success{display:none;align-items:center;gap:8px;font-size:13.5px;color:var(--ok);margin-top:10px;}
.form-success.is-visible{display:flex;}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;}
.footer-bottom p{margin:0;font-size:13.5px;color:var(--text-2);}
.footer-bottom ul{display:flex;flex-wrap:wrap;gap:20px;}
.footer-bottom a{font-size:13.5px;color:var(--text-2);}
.footer-bottom a:hover{color:var(--brand-300);}
/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:999px;
  background:rgba(17,26,46,.72);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border:1px solid rgba(36,224,200,.42);color:var(--text-0);font-size:14.5px;font-weight:600;
  box-shadow:0 18px 40px -18px rgba(0,0,0,.9);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{color:var(--text-0);border-color:rgba(36,224,200,.7);}
.float-cta__dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(61,220,151,.16);}
/* ===== 移动端抽屉 ===== */
.drawer{
  position:fixed;inset:0;z-index:1000;background:rgba(6,10,18,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:24px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);transition:transform .3s var(--ease);
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer__close{width:42px;height:42px;border-radius:var(--r-md);border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--text-0);}
.drawer__link{padding:16px 18px;border-radius:var(--r-md);border:1px solid var(--line);color:var(--text-1);font-size:16px;display:block;}
.drawer__link:hover{color:var(--text-0);border-color:var(--line-strong);background:rgba(255,255,255,.04);}
.drawer__link.is-active{color:var(--brand-300);border-color:rgba(36,224,200,.42);background:rgba(36,224,200,.07);}
.drawer .btn{margin-top:20px;}
/* ===== 响应式 ===== */
@media (max-width:1279px){
  :root{--sec:96px;}
  .hero__inner{gap:40px;}
}
@media (max-width:1023px){
  :root{--sec:80px;}
  .nav__links{display:none;}
  .nav__toggle{display:grid;}
  .nav__tail .btn{display:none;}
  .hero{min-height:auto;padding:64px 0 72px;}
  .hero__inner{grid-template-columns:1fr;gap:48px;}
  .hero__device{justify-content:flex-start;}
  .device{max-width:290px;}
  .glass-card{right:auto;left:180px;bottom:32px;}
  .features-grid{grid-template-columns:1fr;}
  .demo-grid{grid-template-columns:1fr;}
  .demo-thumbs{grid-template-columns:repeat(2,1fr);}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:28px;}
  .proof-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1/-1;}
  .footer-form{grid-column:1/-1;}
}
@media (max-width:767px){
  :root{--sec:56px;--gap:16px;}
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .nav{height:62px;}
  .logo{font-size:15.5px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px;}
  .hero{padding:52px 0 60px;}
  .hero__sub{font-size:15.5px;}
  .hero__actions{gap:12px;margin-bottom:30px;}
  .hero__metrics{gap:14px 24px;}
  .metric__num{font-size:22px;}
  .glass-card{left:auto;right:0;bottom:16px;width:184px;padding:14px;}
  .demo-steps{grid-template-columns:repeat(2,1fr);}
  .demo-thumbs{grid-template-columns:1fr;}
  .faq-a__inner{padding-left:24px;}
  .cta-band__inner{padding:44px 0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;
    padding:14px 16px calc(14px + env(safe-area-inset-bottom));
    justify-content:center;border-left:0;border-right:0;border-bottom:0;
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0);}
  body{padding-bottom:84px;}
}
@media (max-width:480px){
  .hero__actions .btn{width:100%;}
  .stat-bar{grid-template-columns:1fr;gap:22px;}
  .news-grid{grid-template-columns:1fr;}
  .topbar__inner{font-size:12.5px;gap:10px;}
  .glass-card{display:none;}
}

/* roulang page: article */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1120;
  --bg-2:#111A2E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand-500:#24E0C8;
  --brand-600:#12B7A6;
  --brand-300:#7BF3E4;
  --blue-400:#6FA8FF;
  --amber-500:#FFB020;
  --ok:#3DDC97;
  --warn:#FFB020;
  --err:#FF6B6B;
  --text-0:#EAF2FF;
  --text-1:#A8B7CF;
  --text-2:#6C7C96;
  --radius-lg:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.75);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:64px;
  --section-y:112px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-0);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 8% -6%, rgba(36,224,200,.10), transparent 62%),
    radial-gradient(760px 480px at 100% 12%, rgba(111,168,255,.09), transparent 60%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed;
  overflow-x:hidden;
  padding-bottom:0;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--blue-400);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-300)}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;box-shadow:0 0 0 4px rgba(123,243,228,.22);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:820;
  background:rgba(6,10,18,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:20px;min-height:var(--header-h)}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:700;letter-spacing:.2px;flex:0 0 auto}
.logo:hover{color:var(--text-0)}
.logo__mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  color:#04121A;font-weight:800;font-size:16px;
  box-shadow:0 0 0 1px rgba(36,224,200,.45),0 8px 22px -12px rgba(36,224,200,.7);
}
.logo__text{font-size:16px}
.logo__sep{color:var(--text-2);font-weight:400;margin:0 1px}
.logo__text b{color:var(--brand-300);font-weight:700}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:6px;flex:1 1 auto;min-width:0}
.nav__link{
  position:relative;display:inline-block;padding:9px 12px;border-radius:10px;
  font-size:14.5px;color:var(--text-1);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav__link:hover{color:var(--text-0);background:rgba(255,255,255,.05)}
.nav__link.is-active{color:var(--text-0)}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-500),var(--blue-400));
}
.nav__tail{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.nav__toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);color:var(--text-0);place-items:center;
  transition:background .22s var(--ease)
}
.nav__toggle:hover{background:rgba(255,255,255,.06)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:6px;font-size:12.5px;line-height:1.4;
  border:1px solid var(--line);color:var(--text-1);background:rgba(255,255,255,.03);
  white-space:nowrap;
}
.badge--live{color:var(--amber-500);border-color:rgba(255,176,32,.32);background:rgba(255,176,32,.08)}
.badge--cat{color:var(--brand-300);border-color:rgba(36,224,200,.3);background:rgba(36,224,200,.08)}
.badge__pulse{width:7px;height:7px;border-radius:50%;background:var(--amber-500);box-shadow:0 0 0 0 rgba(255,176,32,.6);animation:pulse 1.8s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,176,32,.55)}
  70%{box-shadow:0 0 0 8px rgba(255,176,32,0)}
  100%{box-shadow:0 0 0 0 rgba(255,176,32,0)}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:var(--radius-sm);font-size:14.5px;font-weight:600;
  border:1px solid transparent;transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
  text-align:center;
}
.btn--primary{
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(36,224,200,.5),0 10px 30px -10px rgba(36,224,200,.55);
}
.btn--primary:hover{
  color:#04121A;filter:brightness(1.06);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(36,224,200,.65),0 16px 40px -12px rgba(36,224,200,.75);
}
.btn--primary:active{transform:translateY(-1px)}
.btn--ghost{border-color:var(--line-strong);color:var(--text-0);background:transparent}
.btn--ghost:hover{background:rgba(255,255,255,.06);color:var(--text-0)}
.btn--pill{border-radius:var(--radius-pill)}
.btn--sm{padding:9px 16px;font-size:13.5px}
.btn--block{width:100%}
.link-ghost{color:var(--blue-400);font-weight:600;font-size:14px}
.link-ghost:hover{color:var(--brand-300);text-decoration:underline}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:900;display:none;
  background:rgba(6,10,18,.96);backdrop-filter:blur(14px);
  padding:88px 24px 32px;
}
.drawer.is-open{display:block}
.drawer__close{
  position:absolute;top:18px;right:20px;width:42px;height:42px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--text-0);
}
.drawer__links{display:flex;flex-direction:column;gap:6px}
.drawer__link{
  padding:14px 16px;border-radius:var(--radius-sm);color:var(--text-0);
  font-size:16px;font-weight:600;border:1px solid transparent;
}
.drawer__link:hover,.drawer__link.is-active{background:rgba(255,255,255,.05);border-color:var(--line)}
.drawer__cta{margin-top:20px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0}
.section--tight{padding:64px 0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section__head h2{font-size:clamp(24px,3.2vw,34px)}
.section__head p{margin:8px 0 0;color:var(--text-1);font-size:15px;max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--brand-300);
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-500),transparent)}
.card{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.panel{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(17,26,46,.86),rgba(10,17,32,.86));
  box-shadow:var(--shadow-card);
}

/* ---------- 文章头 ---------- */
.article-hero{
  padding:40px 0 28px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(36,224,200,.05),transparent 70%);
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;font-size:13px;color:var(--text-2);margin-bottom:20px}
.breadcrumb a{color:var(--text-1);white-space:nowrap}
.breadcrumb a:hover{color:var(--brand-300)}
.breadcrumb span.sep{color:var(--text-2);opacity:.7}
.breadcrumb .crumb-current{color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46ch}
.article-title{
  font-size:clamp(26px,4vw,40px);
  line-height:1.25;
  letter-spacing:-.2px;
  max-width:900px;
}
.article-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:22px;font-size:13.5px;color:var(--text-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-2);opacity:.6}
.article-author{display:inline-flex;align-items:center;gap:8px;color:var(--text-1)}
.article-author .avatar{
  width:26px;height:26px;border-radius:50%;
  background:linear-gradient(135deg,rgba(36,224,200,.9),rgba(111,168,255,.9));
  display:grid;place-items:center;color:#04121A;font-size:12px;font-weight:800;
}

/* ---------- 正文 ---------- */
.article-wrap{padding:44px 0 var(--section-y)}
.article-cover{
  margin:0 0 40px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{
  padding:12px 18px;font-size:13px;color:var(--text-2);text-align:center;
  border-top:1px solid var(--line);background:rgba(255,255,255,.02);
}
.article-content{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--text-0)}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 1.1em;color:#DCE7F7}
.article-content h2{
  position:relative;
  margin:48px 0 16px;
  padding-left:14px;
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
  color:var(--text-0);
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand-500),rgba(36,224,200,.15));
}
.article-content h3{margin:32px 0 12px;font-size:18px;font-weight:600;color:#D5E3F7}
.article-content h4{margin:24px 0 10px;font-size:16px;font-weight:600;color:var(--text-1)}
.article-content ul{margin:0 0 1.2em;padding-left:2px}
.article-content ul li{position:relative;padding-left:20px;margin-bottom:8px;color:#DCE7F7}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand-500);box-shadow:0 0 8px rgba(36,224,200,.5);
}
.article-content ol{margin:0 0 1.2em;padding-left:22px;color:#DCE7F7}
.article-content ol li{margin-bottom:8px}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--brand-500);
  background:rgba(255,255,255,.03);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-1);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:14px;margin:24px 0;border:1px solid var(--line)}
.article-content figure{margin:24px 0}
.article-content figcaption{font-size:13px;color:var(--text-2);text-align:center;margin-top:10px}
.article-content a{color:var(--blue-400);border-bottom:1px solid rgba(111,168,255,.35)}
.article-content a:hover{color:var(--brand-300);border-bottom-color:var(--brand-300)}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13.5px;padding:2px 6px;border-radius:6px;
  background:rgba(255,255,255,.06);color:var(--brand-300);
}
.article-content pre{
  margin:24px 0;padding:18px 20px;border-radius:var(--radius-sm);
  background:var(--bg-1);border:1px solid var(--line);
  overflow-x:auto;font-size:13.5px;line-height:1.7;
}
.article-content pre code{background:none;padding:0;color:#CBDAF0}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px}
.article-content th,.article-content td{padding:10px 14px;border:1px solid var(--line);text-align:left}
.article-content th{background:rgba(255,255,255,.04);color:var(--text-1);font-weight:600}
.article-content hr{border:0;height:1px;background:var(--line);margin:36px 0}

/* ---------- 空态 ---------- */
.empty{
  max-width:760px;margin:0 auto;padding:52px 28px;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.02);
}
.empty__icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:14px;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--brand-300);background:rgba(36,224,200,.06);
}
.empty h2{font-size:20px;margin-bottom:10px}
.empty p{color:var(--text-1);font-size:14.5px;margin-bottom:22px}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px}
.tag{
  display:inline-flex;align-items:center;padding:7px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:13px;color:var(--text-1);transition:border-color .22s var(--ease),color .22s var(--ease)
}
.tag:hover{border-color:var(--brand-500);color:var(--brand-300)}

/* ---------- 上下篇 ---------- */
.prev-next{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:56px}
.pn-card{display:block;padding:22px 24px;color:var(--text-0)}
.pn-card span{display:block;font-size:12.5px;color:var(--text-2);margin-bottom:8px}
.pn-card strong{display:block;font-size:15.5px;font-weight:600;line-height:1.6}
.pn-card:hover{color:var(--brand-300)}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:14px;color:var(--blue-400);font-weight:600}
.back-link:hover{color:var(--brand-300);text-decoration:underline}

/* ---------- 推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rec-card{display:flex;flex-direction:column;overflow:hidden}
.rec-card__thumb{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line)}
.rec-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rec-card:hover .rec-card__thumb img{transform:scale(1.04)}
.rec-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-card__body h3{font-size:16px;line-height:1.55;font-weight:600;color:var(--text-0);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card__meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-2);margin-top:auto}
.rec-card:hover h3{color:var(--brand-300)}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(255,255,255,.03);overflow:hidden;transition:border-color .22s var(--ease)}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(36,224,200,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:18px 20px;font-size:15.5px;font-weight:600;color:var(--text-0);
}
.faq-q .idx{color:var(--brand-300);font-size:13px;font-variant-numeric:tabular-nums;flex:0 0 auto}
.faq-q .plus{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .3s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--text-1);border-radius:2px;
  transition:transform .3s var(--ease),background .3s var(--ease)
}
.faq-q .plus::before{left:50%;top:4px;bottom:4px;width:2px;transform:translateX(-50%)}
.faq-q .plus::after{top:50%;left:4px;right:4px;height:2px;transform:translateY(-50%)}
.faq-item.is-open .faq-q .plus::before{transform:translateX(-50%) scaleY(0);background:var(--brand-500)}
.faq-item.is-open .faq-q .plus::after{background:var(--brand-500)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a__inner{padding:0 20px 20px 54px;font-size:14.5px;line-height:1.9;color:var(--text-1)}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:radial-gradient(700px 220px at 18% 50%, rgba(36,224,200,.14), transparent 70%);
}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:56px 0;flex-wrap:wrap}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);margin-bottom:8px}
.cta-band p{color:var(--text-1);font-size:14.5px;margin:0;max-width:520px}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);padding:72px 0 34px;background:rgba(6,10,18,.7)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--text-1);font-size:14px;max-width:320px}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{
  width:36px;height:36px;border-radius:var(--radius-sm);display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-1);background:rgba(255,255,255,.03);
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease)
}
.socials a:hover{border-color:var(--brand-500);color:var(--brand-300);transform:translateY(-2px)}
.site-footer h4{font-size:14px;margin-bottom:16px;color:var(--text-0)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-1);font-size:14px}
.footer-links a:hover{color:var(--brand-300)}
.footer-form{max-width:420px;display:flex;flex-direction:column;gap:12px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--text-1)}
.field input{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:var(--text-0);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease)
}
.field input::placeholder{color:var(--text-2)}
.field input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(36,224,200,.16);background:rgba(255,255,255,.06)}
.field.is-error input{border-color:var(--err);box-shadow:0 0 0 4px rgba(255,107,107,.14)}
.field.is-ok input{border-color:var(--ok)}
.form-hint{font-size:13px;color:var(--text-2)}
.field.is-error .form-hint{color:var(--err)}
.field.is-ok .form-hint{color:var(--ok)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:var(--radius-pill);
  background:rgba(10,17,32,.82);backdrop-filter:blur(14px);
  border:1px solid rgba(36,224,200,.45);
  color:var(--text-0);font-size:14px;font-weight:600;
  box-shadow:0 0 0 1px rgba(36,224,200,.18),0 18px 44px -20px rgba(36,224,200,.65);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease),color .22s var(--ease)
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{color:var(--brand-300)}
.float-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:910;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(6,10,18,.92);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  align-items:center;gap:12px;
}
.float-bar .btn{flex:1 1 auto}
.float-bar .icon-btn{
  flex:0 0 auto;width:46px;height:46px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--text-1)
}
.float-bar .icon-btn:hover{color:var(--brand-300);border-color:var(--brand-500)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--section-y:96px}
}
@media (max-width:1023px){
  .nav__links{display:none}
  .nav__toggle{display:grid}
  .nav__tail .badge{display:none}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .article-wrap{padding-top:32px}
}
@media (max-width:767px){
  :root{--section-y:56px;--header-h:58px}
  .container{padding:0 16px}
  body{font-size:15.5px;padding-bottom:84px}
  .section--tight{padding:44px 0}
  .section__head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .article-hero{padding:26px 0 22px}
  .article-title{font-size:24px;line-height:1.35}
  .breadcrumb{font-size:12.5px}
  .breadcrumb .crumb-current{max-width:24ch}
  .article-content{font-size:15.5px;line-height:1.9}
  .article-content h2{margin-top:36px;padding-left:12px}
  .prev-next{grid-template-columns:1fr;gap:14px}
  .rec-grid{grid-template-columns:1fr;gap:16px}
  .faq-q{padding:16px;font-size:15px}
  .faq-a__inner{padding:0 16px 18px 16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .cta-band__inner{padding:44px 0;flex-direction:column;align-items:flex-start;gap:20px}
  .float-cta{display:none}
  .float-bar{display:flex}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:520px){
  .rec-card__body{padding:18px}
  .btn{width:100%}
  .nav__tail .btn--sm{width:auto}
  .float-bar .btn{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .article-meta{gap:10px;font-size:13px}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1120;
  --bg-2:#111A2E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand-500:#24E0C8;
  --brand-600:#12B7A6;
  --brand-300:#7BF3E4;
  --blue-400:#6FA8FF;
  --amber-500:#FFB020;
  --ok:#3DDC97;
  --warn:#FFB020;
  --err:#FF6B6B;
  --text-0:#EAF2FF;
  --text-1:#A8B7CF;
  --text-2:#6C7C96;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.75);
  --ease:cubic-bezier(.22,.61,.36,1);
  --panel:rgba(255,255,255,.03);
  --panel-2:rgba(255,255,255,.045);
  --section-y:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-0);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 10% -6%, rgba(36,224,200,.10), transparent 62%),
    radial-gradient(820px 600px at 94% 4%, rgba(111,168,255,.09), transparent 64%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(circle at 50% 26%, #000 36%, transparent 84%);
  mask-image:radial-gradient(circle at 50% 26%, #000 36%, transparent 84%);
}
body > *{position:relative;z-index:1;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--text-0);}
h1{font-size:clamp(30px,5vw,52px);line-height:1.15;}
h2{font-size:clamp(24px,3.2vw,34px);}
h3{font-size:20px;font-weight:600;line-height:1.4;}
h4{font-size:15px;font-weight:600;letter-spacing:.02em;color:var(--text-1);}
p{margin:0 0 1em;color:var(--text-1);}
p:last-child{margin-bottom:0;}
a{color:var(--blue-400);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-300);}
img{max-width:100%;display:block;border-style:none;}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(36,224,200,.28);color:#fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(36,224,200,.5),0 10px 30px -10px rgba(36,224,200,.55);
}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.6),0 16px 38px -10px rgba(36,224,200,.62);color:#04121A;}
.btn--primary:active{transform:translateY(-1px);}
.btn--ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text-0);
}
.btn--ghost:hover{background:rgba(255,255,255,.06);color:var(--text-0);}
.btn--ghost:active{transform:translateY(1px);}
.btn--pill{border-radius:var(--radius-pill);}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn--block{width:100%;}
.btn:focus-visible,a:focus-visible,input:focus-visible,button:focus-visible{
  outline:2px solid var(--brand-300);
  outline-offset:2px;
  box-shadow:0 0 0 4px rgba(36,224,200,.22);
}
.link-ghost{color:var(--blue-400);font-weight:600;font-size:14.5px;display:inline-flex;align-items:center;gap:6px;}
.link-ghost:hover{color:var(--brand-300);text-decoration:underline;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 10px;
  border-radius:6px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:12.5px;
  line-height:1.5;
  color:var(--text-1);
  white-space:nowrap;
}
.badge--live{color:var(--brand-300);border-color:rgba(36,224,200,.32);background:rgba(36,224,200,.08);}
.badge--amber{color:var(--amber-500);border-color:rgba(255,176,32,.3);background:rgba(255,176,32,.08);}
.badge--soft{color:var(--text-1);}
.badge__pulse{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-500);
  box-shadow:0 0 0 0 rgba(36,224,200,.6);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(36,224,200,.55);}
  70%{box-shadow:0 0 0 8px rgba(36,224,200,0);}
  100%{box-shadow:0 0 0 0 rgba(36,224,200,0);}
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:800;
  background:rgba(10,17,32,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-0);
  flex-shrink:0;
}
.logo:hover{color:var(--text-0);}
.logo__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;height:32px;
  border-radius:10px;
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  color:#04121A;
  font-weight:700;
  font-size:16px;
  box-shadow:0 0 0 1px rgba(36,224,200,.45),0 8px 20px -10px rgba(36,224,200,.6);
}
.logo__text{font-size:16px;font-weight:600;letter-spacing:.01em;white-space:nowrap;}
.logo__text b{font-weight:700;color:var(--brand-300);}
.logo__sep{color:var(--text-2);margin:0 2px;}
.nav__links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;}
.nav__link{
  position:relative;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--text-1);
  border-radius:var(--radius-sm);
  white-space:nowrap;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,#24E0C8,#0FA9D8);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav__link:hover{color:var(--text-0);background:rgba(255,255,255,.04);}
.nav__link.is-active{color:var(--text-0);font-weight:600;}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__tail{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav__toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:transparent;
  color:var(--text-0);
  cursor:pointer;
  transition:background-color .22s var(--ease),border-color .22s var(--ease);
}
.nav__toggle:hover{background:rgba(255,255,255,.06);border-color:var(--line-strong);}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:1000;
  background:rgba(6,10,18,.97);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  display:flex;
  flex-direction:column;
  padding:20px 20px 32px;
  overflow-y:auto;
}
.drawer[hidden]{display:none;}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer__links{display:flex;flex-direction:column;gap:4px;margin-bottom:28px;}
.drawer__links a{
  padding:15px 14px;
  border-radius:var(--radius-md);
  color:var(--text-0);
  font-size:16.5px;
  font-weight:600;
  border:1px solid transparent;
  transition:background-color .22s var(--ease),border-color .22s var(--ease);
}
.drawer__links a:hover{background:rgba(255,255,255,.05);border-color:var(--line);}
.drawer__links a.is-active{color:var(--brand-300);background:rgba(36,224,200,.08);border-color:rgba(36,224,200,.26);}
.drawer__note{font-size:13px;color:var(--text-2);margin-top:16px;}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
  flex-wrap:wrap;
}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--brand-300);}
.crumbs__sep{color:var(--text-2);opacity:.6;}
.crumbs__now{color:var(--text-1);}

/* ---------- Banner ---------- */
.banner{
  position:relative;
  padding:88px 0 72px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.16;
  z-index:-1;
}
.banner::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.55) 0%,rgba(6,10,18,.92) 78%,var(--bg-0) 100%);
  z-index:-1;
}
.banner__inner{max-width:820px;}
.banner .crumbs{margin-bottom:22px;}
.banner h1{margin-bottom:18px;}
.banner h1 em{
  font-style:normal;
  background:linear-gradient(135deg,#24E0C8,#6FA8FF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.banner__lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-1);
  max-width:700px;
  margin-bottom:28px;
}
.banner__actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.banner__meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}

/* ---------- 板块通用 ---------- */
.section{padding:var(--section-y) 0;}
.section--tight{padding:72px 0;}
.section--alt{background:linear-gradient(180deg,rgba(17,26,46,.55),rgba(10,17,32,.2));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:24px;
  margin-bottom:44px;
}
.section-head__txt{max-width:720px;}
.section-head h2{margin-bottom:12px;}
.section-head p{margin-bottom:0;font-size:15.5px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--brand-300);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:18px;height:1px;
  background:var(--brand-500);
  opacity:.8;
}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat{
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--panel);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.stat:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.stat__num{
  font-size:34px;
  line-height:1.1;
  font-weight:700;
  color:var(--text-0);
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:baseline;
  gap:4px;
}
.stat__num span{font-size:15px;font-weight:600;color:var(--brand-300);}
.stat__label{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.6;}

/* ---------- 图文交替 ---------- */
.splits{display:flex;flex-direction:column;gap:72px;}
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split--reverse .split__media{order:2;}
.split__media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--bg-2);
}
.split__media img{
  width:100%;
  height:auto;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.split__media:hover img{transform:scale(1.03);}
.split__tag{
  position:absolute;
  top:16px;left:16px;
  padding:5px 10px;
  border-radius:6px;
  font-size:12.5px;
  color:#04121A;
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  font-weight:600;
}
.split__body h3{margin-bottom:8px;}
.split__idx{
  font-size:13px;
  font-weight:700;
  color:var(--brand-300);
  letter-spacing:.18em;
  margin-bottom:12px;
  display:block;
  font-variant-numeric:tabular-nums;
}
.split__body p{font-size:15.5px;}
.split__body .link-ghost{margin-top:14px;}

/* ---------- 面板卡 ---------- */
.cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  padding:26px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--panel);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:var(--panel-2);}
.card__icon{
  width:40px;height:40px;
  border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;
  background:rgba(36,224,200,.1);
  border:1px solid rgba(36,224,200,.24);
  color:var(--brand-300);
  margin-bottom:18px;
}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;line-height:1.8;}

/* ---------- 状态列表 ---------- */
.status-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px 32px;
}
.status-item{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:16px 18px;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:rgba(255,255,255,.02);
}
.status-item__dot{
  flex:0 0 auto;
  width:8px;height:8px;
  margin-top:8px;
  border-radius:2px;
  background:var(--brand-500);
  box-shadow:0 0 0 3px rgba(36,224,200,.14);
}
.status-item h4{color:var(--text-0);font-size:15px;margin-bottom:4px;}
.status-item p{font-size:13.5px;color:var(--text-2);margin:0;}

/* ---------- FAQ ---------- */
.faq{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--panel);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.faq__item + .faq__item{border-top:1px solid var(--line);}
.faq__q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:22px 26px;
  background:transparent;
  border:0;
  text-align:left;
  color:var(--text-0);
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.faq__q:hover{background:rgba(255,255,255,.04);}
.faq__q:focus-visible{outline-offset:-2px;}
.faq__idx{
  flex:0 0 auto;
  font-size:13px;
  font-weight:700;
  color:var(--brand-300);
  letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
}
.faq__text{flex:1 1 auto;}
.faq__icon{
  position:relative;
  flex:0 0 auto;
  width:18px;height:18px;
  border:1px solid var(--line-strong);
  border-radius:50%;
  transition:transform .3s var(--ease),background-color .3s var(--ease),border-color .3s var(--ease);
}
.faq__icon::before,
.faq__icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  width:8px;height:1.5px;
  background:var(--text-1);
  transform:translate(-50%,-50%);
  transition:opacity .3s var(--ease),background-color .3s var(--ease);
}
.faq__icon::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq__q[aria-expanded="true"] .faq__icon{
  transform:rotate(180deg);
  background:rgba(36,224,200,.14);
  border-color:rgba(36,224,200,.4);
}
.faq__q[aria-expanded="true"] .faq__icon::before,
.faq__q[aria-expanded="true"] .faq__icon::after{background:var(--brand-300);}
.faq__q[aria-expanded="true"] .faq__icon::after{opacity:0;}
.faq__a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq__a-inner{
  padding:0 26px 24px 60px;
  font-size:14.5px;
  line-height:1.9;
  color:var(--text-1);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  padding:56px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(520px 220px at 18% 50%, rgba(36,224,200,.13), transparent 70%),
    rgba(10,17,32,.6);
}
.cta-band__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:8px;}
.cta-band p{margin:0;font-size:14.5px;color:var(--text-2);}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 交叉链接 ---------- */
.crosslinks{padding:64px 0;}
.crosslinks__title{font-size:14px;color:var(--text-2);margin-bottom:18px;letter-spacing:.06em;}
.crosslinks__row{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-1);
  font-size:14px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background-color .22s var(--ease);
}
.chip:hover{transform:translateY(-2px);border-color:var(--line-strong);color:var(--text-0);background:rgba(255,255,255,.06);}
.chip.is-current{
  color:#04121A;
  border-color:transparent;
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  font-weight:600;
  cursor:default;
}
.chip.is-current:hover{transform:none;color:#04121A;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(10,17,32,.7);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand p{font-size:14px;color:var(--text-2);margin:18px 0 20px;max-width:320px;line-height:1.8;}
.socials{display:flex;gap:10px;}
.socials a{
  width:36px;height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  color:var(--text-1);
  background:rgba(255,255,255,.03);
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.socials a:hover{color:var(--brand-300);border-color:var(--line-strong);transform:translateY(-2px);}
.footer-links{display:flex;flex-direction:column;gap:12px;margin-top:18px;}
.footer-links a{font-size:14px;color:var(--text-1);}
.footer-links a:hover{color:var(--brand-300);}
.footer-form{margin-top:18px;max-width:340px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--text-1);margin-bottom:8px;}
.field input{
  width:100%;
  padding:12px 14px;
  border-radius:var(--radius-md);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text-0);
  font-size:14.5px;
  font-family:inherit;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.field input::placeholder{color:var(--text-2);}
.field input:focus{
  outline:none;
  border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(36,224,200,.16);
  background:rgba(255,255,255,.06);
}
.field.is-error input{border-color:var(--err);box-shadow:0 0 0 4px rgba(255,107,107,.14);}
.form-hint{font-size:13px;color:var(--text-2);margin-top:8px;line-height:1.6;}
.field.is-error .form-hint{color:var(--err);}
.field.is-ok .form-hint{color:var(--ok);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-2);
}
.footer-bottom a{color:var(--text-2);}
.footer-bottom a:hover{color:var(--brand-300);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:900;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .btn{
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  padding:14px 26px;
  font-size:15px;
}
.mobile-bar{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--section-y:88px;}
  .nav__links{gap:2px;}
  .nav__link{padding:8px 9px;font-size:14px;}
}
@media (max-width:1023px){
  :root{--section-y:76px;}
  .nav__links{display:none;}
  .nav__toggle{display:inline-flex;}
  .nav__tail .badge{display:none;}
  .nav__tail .btn--primary{display:none;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .cards{grid-template-columns:1fr 1fr;}
  .split{gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  :root{--section-y:60px;}
  body{padding-bottom:84px;font-size:15.5px;}
  .container{padding:0 16px;}
  .nav{height:62px;}
  .logo__text{font-size:15px;}
  .banner{padding:60px 0 52px;}
  .banner__lead{font-size:15.5px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .splits{gap:52px;}
  .split{grid-template-columns:1fr;gap:22px;}
  .split--reverse .split__media{order:0;}
  .stats{grid-template-columns:1fr 1fr;gap:16px;}
  .stat{padding:20px;}
  .stat__num{font-size:28px;}
  .cards{grid-template-columns:1fr;}
  .status-list{grid-template-columns:1fr;}
  .faq__q{padding:18px 18px;font-size:15px;gap:12px;}
  .faq__a-inner{padding:0 18px 20px 46px;font-size:14px;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;gap:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:900;
    gap:12px;
    align-items:center;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));
    background:rgba(10,17,32,.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
  }
  .mobile-bar .btn{flex:1 1 auto;}
  .mobile-bar .icon-btn{
    flex:0 0 auto;
    width:46px;height:46px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:var(--radius-md);
    border:1px solid var(--line-strong);
    color:var(--text-0);
    background:transparent;
  }
}
@media (max-width:480px){
  .stats{grid-template-columns:1fr;}
  .banner__actions{flex-direction:column;align-items:stretch;}
  .banner__actions .btn{width:100%;}
  .cta-band__actions{flex-direction:column;align-items:stretch;width:100%;}
  .cta-band__actions .btn{width:100%;}
  .chip{padding:9px 15px;font-size:13.5px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1120;
  --bg-2:#111A2E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand-500:#24E0C8;
  --brand-600:#12B7A6;
  --brand-300:#7BF3E4;
  --blue-400:#6FA8FF;
  --amber-500:#FFB020;
  --ok:#3DDC97;
  --warn:#FFB020;
  --err:#FF6B6B;
  --text-0:#EAF2FF;
  --text-1:#A8B7CF;
  --text-2:#6C7C96;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:6px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.75);
  --ease:cubic-bezier(.22,.61,.36,1);
  --space-section:112px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0 0 0;
  background-color:var(--bg-0);
  color:var(--text-0);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 600px at 8% -6%,rgba(36,224,200,.10),transparent 65%),
    radial-gradient(900px 700px at 102% 24%,rgba(111,168,255,.09),transparent 62%),
    linear-gradient(0deg,rgba(255,255,255,.03) 1px,transparent 1px) 0 0/48px 48px,
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px) 0 0/48px 48px;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--blue-400);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-300)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-0);letter-spacing:.005em}
h1{font-size:clamp(30px,5vw,52px);line-height:1.15}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:16px;line-height:1.5;font-weight:600}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;box-shadow:0 0 0 4px rgba(123,243,228,.22);border-radius:6px}
::selection{background:rgba(36,224,200,.28);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:var(--space-section) 0}
.section--tight{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;color:var(--brand-300);
  letter-spacing:.08em;text-transform:uppercase;
  padding:6px 12px;border:1px solid rgba(36,224,200,.28);border-radius:999px;
  background:rgba(36,224,200,.06);
}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head p{color:var(--text-1);font-size:15.5px;max-width:640px;margin:10px 0 0}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(36,224,200,.5),0 10px 30px -10px rgba(36,224,200,.55);
}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.6),0 16px 40px -12px rgba(36,224,200,.7);color:#04121A}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{
  background:transparent;border-color:var(--line-strong);color:var(--text-0);
}
.btn--ghost:hover{background:rgba(255,255,255,.06);border-color:var(--line-strong);color:var(--text-0)}
.btn--ghost:active{transform:translateY(1px)}
.btn--pill{border-radius:999px}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--block{width:100%}
.link-ghost{color:var(--blue-400);font-weight:600;font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
.link-ghost:hover{color:var(--brand-300);text-decoration:underline;text-underline-offset:4px}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:var(--radius-sm);
  font-size:12.5px;line-height:1.5;font-weight:600;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);
}
.badge--live{color:var(--amber-500);border-color:rgba(255,176,32,.28);background:rgba(255,176,32,.08)}
.badge--brand{color:var(--brand-300);border-color:rgba(36,224,200,.28);background:rgba(36,224,200,.07)}
.badge__pulse{width:7px;height:7px;border-radius:50%;background:var(--amber-500);box-shadow:0 0 0 0 rgba(255,176,32,.6);animation:pulse 2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,176,32,.55)}
  70%{box-shadow:0 0 0 8px rgba(255,176,32,0)}
  100%{box-shadow:0 0 0 0 rgba(255,176,32,0)}
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:800;
  background:rgba(8,13,24,.72);
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:700;font-size:16.5px;letter-spacing:.01em}
.logo:hover{color:var(--text-0)}
.logo__mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  color:#04121A;font-size:17px;font-weight:800;
  box-shadow:0 0 0 1px rgba(36,224,200,.45),0 8px 22px -12px rgba(36,224,200,.8);
}
.logo__text{display:inline-flex;align-items:baseline;gap:2px}
.logo__text b{font-weight:800;color:var(--brand-300)}
.logo__sep{color:var(--text-2);margin:0 2px}
.nav__links{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1}
.nav__link{
  position:relative;padding:10px 12px;border-radius:10px;
  color:var(--text-1);font-size:14.5px;font-weight:500;white-space:nowrap;
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav__link:hover{color:var(--text-0);background:rgba(255,255,255,.05)}
.nav__link.is-active{color:var(--text-0);font-weight:600}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,#24E0C8,#0FA9D8);
}
.nav__tail{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav__toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);color:var(--text-0);
  align-items:center;justify-content:center;
}
.nav__toggle:hover{background:rgba(255,255,255,.06)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:900;display:none;
  background:rgba(4,8,16,.86);backdrop-filter:blur(16px);
}
.drawer.is-open{display:block}
.drawer__inner{padding:24px;max-width:520px;margin:0 auto}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer__close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--text-0)}
.drawer__links{display:flex;flex-direction:column;gap:6px;margin-bottom:28px}
.drawer__links a{
  padding:14px 16px;border-radius:12px;color:var(--text-0);font-size:16px;font-weight:500;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.drawer__links a.is-active{border-color:rgba(36,224,200,.4);color:var(--brand-300)}

/* ---------- banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
  background-color:var(--bg-1);
}
.page-banner__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-banner__mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.72) 0%,rgba(6,10,18,.94) 78%,var(--bg-0) 100%);
}
.page-banner__inner{position:relative;z-index:1;max-width:820px}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-2);margin-bottom:20px;
}
.breadcrumb a{color:var(--text-1)}
.breadcrumb a:hover{color:var(--brand-300)}
.breadcrumb span[aria-current]{color:var(--text-2)}
.page-banner h1{margin:14px 0 0;max-width:16em}
.page-banner__lead{margin-top:16px;color:var(--text-1);font-size:16.5px;max-width:660px}

/* ---------- stat bar ---------- */
.statbar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.statbar__item{padding:24px;border-right:1px solid var(--line)}
.statbar__item:last-child{border-right:0}
.statbar__num{
  font-size:clamp(26px,3.4vw,36px);line-height:1.1;font-weight:700;color:var(--text-0);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.statbar__num em{font-style:normal;font-size:.55em;color:var(--brand-300);margin-left:4px}
.statbar__label{margin-top:8px;font-size:13px;color:var(--text-2)}

/* ---------- layout with sticky aside ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.panel{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
  padding:22px;
  transition:border-color .22s var(--ease),transform .22s var(--ease)
}
.panel:hover{border-color:var(--line-strong)}
.panel__title{font-size:14px;color:var(--text-2);letter-spacing:.06em;margin-bottom:14px;font-weight:600}
.toc{display:flex;flex-direction:column;gap:2px}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;color:var(--text-1);font-size:14.5px;
}
.toc a::before{content:"";width:5px;height:5px;border-radius:2px;background:var(--text-2);flex:0 0 5px}
.toc a:hover{background:rgba(255,255,255,.05);color:var(--text-0)}
.toc a:hover::before{background:var(--brand-500)}
.point-list{display:flex;flex-direction:column;gap:12px}
.point-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-1);line-height:1.7}
.point-list svg{flex:0 0 18px;color:var(--brand-500);margin-top:4px}
.aside-cta{
  border:1px solid rgba(36,224,200,.28);
  border-radius:var(--radius-lg);
  padding:22px;
  background:
    radial-gradient(320px 180px at 100% 0,rgba(36,224,200,.14),transparent 70%),
    rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
}
.aside-cta h3{font-size:18px;margin-bottom:8px}
.aside-cta p{font-size:14.5px;color:var(--text-1);margin-bottom:16px}
.aside-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-top:14px}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card__media img{transform:scale(1.04)}
.card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.05),rgba(6,10,18,.55))}
.card__tag{position:absolute;left:14px;top:14px;z-index:1}
.card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body h3{font-size:18px}
.card__body p{color:var(--text-1);font-size:14.8px;margin:0}
.card__foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--text-2);font-size:13px}

/* ---------- scene list ---------- */
.scene-list{display:flex;flex-direction:column;gap:16px}
.scene{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;
  padding:24px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.03);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.scene:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.scene__no{
  font-size:26px;font-weight:700;color:var(--brand-500);
  font-variant-numeric:tabular-nums;line-height:1;padding-top:4px;
  opacity:.9;
}
.scene h3{font-size:17.5px;margin-bottom:6px}
.scene p{color:var(--text-1);font-size:14.8px;margin:0}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(255,255,255,.03);overflow:hidden;box-shadow:var(--shadow-card)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item:last-child{border-bottom:0}
.faq__q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:20px 22px;color:var(--text-0);font-size:16px;font-weight:600;
  transition:background-color .22s var(--ease);
}
.faq__q:hover{background:rgba(255,255,255,.04)}
.faq__idx{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:12.5px;font-weight:700;
  color:var(--brand-300);background:rgba(36,224,200,.1);border:1px solid rgba(36,224,200,.25);
}
.faq__icon{margin-left:auto;flex:0 0 18px;color:var(--text-2);transition:transform .3s var(--ease)}
.faq__q[aria-expanded="true"] .faq__icon{transform:rotate(45deg);color:var(--brand-300)}
.faq__a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq__a p{
  padding:0 22px 22px 62px;color:var(--text-1);font-size:14.5px;line-height:1.9;margin:0;
}

/* ---------- cross links ---------- */
.xlinks{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:24px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.03);
}
.xlinks__label{font-size:13px;color:var(--text-2);margin-right:6px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--text-1);font-size:14px;
  transition:border-color .22s var(--ease),color .22s var(--ease),background-color .22s var(--ease);
}
.chip:hover{color:var(--text-0);border-color:var(--brand-500);background:rgba(36,224,200,.07)}
.chip.is-current{color:#04121A;background:linear-gradient(135deg,#24E0C8,#0FA9D8);border-color:transparent;font-weight:600}

/* ---------- cta band ---------- */
.cta-band{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:
    radial-gradient(560px 220px at 12% 50%,rgba(36,224,200,.14),transparent 70%),
    rgba(255,255,255,.03);
}
.cta-band h2{font-size:clamp(20px,2.6vw,26px);margin-bottom:8px}
.cta-band p{color:var(--text-1);font-size:14.8px;margin:0}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);margin-top:0;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr 1.1fr;gap:40px}
.footer-brand p{color:var(--text-2);font-size:14px;margin:16px 0 18px;max-width:320px}
.socials{display:flex;gap:10px}
.socials a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-1);
  transition:border-color .22s var(--ease),color .22s var(--ease),background-color .22s var(--ease);
}
.socials a:hover{border-color:var(--brand-500);color:var(--brand-300);background:rgba(36,224,200,.08)}
.site-footer h4{font-size:14px;color:var(--text-0);letter-spacing:.04em;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-1);font-size:14px}
.footer-links a:hover{color:var(--brand-300)}
.footer-form{display:flex;flex-direction:column;gap:14px;max-width:340px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--text-1)}
.field input{
  width:100%;padding:12px 14px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text-0);font-size:14.5px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field input::placeholder{color:var(--text-2)}
.field input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(36,224,200,.16)}
.field.is-error input{border-color:var(--err);box-shadow:0 0 0 4px rgba(255,107,107,.14)}
.form-hint{font-size:13px;color:var(--text-2);line-height:1.6}
.field.is-error .form-hint{color:var(--err)}
.form-note{font-size:13px;color:var(--ok);min-height:18px}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--text-2);font-size:13px;
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--brand-300)}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:flex;align-items:center;gap:10px;
  padding:10px 12px 10px 20px;border-radius:999px;
  background:rgba(10,17,32,.72);
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  border:1px solid var(--line-strong);
  box-shadow:0 20px 50px -20px rgba(0,0,0,.85);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta span{font-size:13.5px;color:var(--text-1)}
.mobile-bar{display:none}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .layout{grid-template-columns:minmax(0,1fr) 288px;gap:32px}
}
@media (max-width:1023px){
  :root{--space-section:72px}
  .nav__links{display:none}
  .nav__toggle{display:flex}
  .layout{grid-template-columns:minmax(0,1fr)}
  .aside{position:static;order:2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .statbar{grid-template-columns:repeat(2,1fr)}
  .statbar__item:nth-child(2){border-right:0}
  .statbar__item:nth-child(1),.statbar__item:nth-child(2){border-bottom:1px solid var(--line)}
}
@media (max-width:767px){
  :root{--space-section:56px}
  body{padding-bottom:84px}
  .container{padding:0 16px}
  .nav{height:64px;gap:12px}
  .nav__tail .badge{display:none}
  .badge--live{display:none}
  .card-grid{grid-template-columns:1fr}
  .scene{grid-template-columns:44px minmax(0,1fr);gap:16px;padding:20px}
  .scene__no{font-size:22px}
  .faq__q{padding:18px 16px;font-size:15px}
  .faq__a p{padding:0 16px 20px 56px}
  .cta-band{padding:26px 20px;flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .float-cta{display:none}
  .mobile-bar{
    display:flex;align-items:center;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:900;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(10,17,32,.9);
    backdrop-filter:blur(14px) saturate(150%);
    -webkit-backdrop-filter:blur(14px) saturate(150%);
    border-top:1px solid var(--line-strong);
  }
  .mobile-bar .btn{flex:1}
  .icon-btn{
    width:44px;height:44px;flex:0 0 44px;border-radius:12px;
    display:grid;place-items:center;border:1px solid var(--line-strong);color:var(--text-1);
  }
  .icon-btn:hover{color:var(--brand-300);border-color:var(--brand-500)}
  .page-banner{padding:44px 0 40px}
}
@media (max-width:480px){
  .btn{padding:12px 18px;font-size:14.5px}
  .statbar{grid-template-columns:1fr}
  .statbar__item{border-right:0;border-bottom:1px solid var(--line)}
  .statbar__item:last-child{border-bottom:0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .xlinks{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
/* ============ 设计令牌 ============ */
:root{
  --bg-0:#060A12;--bg-1:#0A1120;--bg-2:#111A2E;
  --line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.16);
  --brand-500:#24E0C8;--brand-600:#12B7A6;--brand-300:#7BF3E4;
  --blue-400:#6FA8FF;--amber-500:#FFB020;
  --ok:#3DDC97;--warn:#FFB020;--err:#FF6B6B;
  --text-0:#EAF2FF;--text-1:#A8B7CF;--text-2:#6C7C96;
  --r-card:18px;--r-sm:12px;--r-badge:6px;
  --shadow:0 20px 50px -24px rgba(0,0,0,.75);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section:112px;
  --maxw:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;
  overflow-x:hidden;
  min-height:100vh;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(760px 520px at 8% -6%, rgba(36,224,200,.10), transparent 70%),
    radial-gradient(820px 560px at 104% 104%, rgba(111,168,255,.09), transparent 72%),
    linear-gradient(180deg,var(--bg-0),var(--bg-1) 55%,var(--bg-0));
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(circle at 50% 20%,#000 20%,transparent 82%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 20%,transparent 82%);
}
img{max-width:100%;display:block}
a{color:var(--blue-400);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-300)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-0);letter-spacing:.2px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:3px;box-shadow:0 0 0 4px rgba(36,224,200,.22);border-radius:8px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部倒计时/状态微条 ============ */
.topline{background:linear-gradient(90deg,rgba(36,224,200,.10),rgba(111,168,255,.06));border-bottom:1px solid var(--line)}
.topline__in{display:flex;align-items:center;gap:14px;min-height:36px;font-size:13px;color:var(--text-1);flex-wrap:wrap}
.topline__in b{color:var(--amber-500);font-variant-numeric:tabular-nums;font-weight:600}
.topline__in span{white-space:nowrap}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:800;
  background:rgba(10,17,32,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:24px;min-height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:700}
.logo:hover{color:var(--text-0)}
.logo__mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-500),#0FA9D8);color:#04121A;
  font-weight:800;font-size:16px;box-shadow:0 0 0 1px rgba(36,224,200,.5),0 8px 22px -12px rgba(36,224,200,.7)
}
.logo__text{font-size:16px;letter-spacing:.4px;white-space:nowrap}
.logo__text b{font-weight:700;color:var(--brand-300)}
.logo__sep{color:var(--text-2);margin:0 3px;font-weight:400}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1}
.nav__link{
  position:relative;padding:10px 12px;border-radius:var(--r-sm);
  color:var(--text-1);font-size:14.5px;white-space:nowrap;transition:color .22s var(--ease),background .22s var(--ease)
}
.nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-500),var(--brand-300));opacity:0;transform:scaleX(.4);
  transition:opacity .22s var(--ease),transform .22s var(--ease)
}
.nav__link:hover{color:var(--text-0);background:rgba(255,255,255,.05)}
.nav__link.is-active{color:var(--text-0)}
.nav__link.is-active::after{opacity:1;transform:scaleX(1)}
.nav__tail{display:flex;align-items:center;gap:12px}
.nav__toggle{
  display:none;width:40px;height:40px;border-radius:12px;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line-strong);color:var(--text-0);cursor:pointer
}
.nav__toggle:hover{background:rgba(255,255,255,.08)}

/* ============ 徽章 / 按钮 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:var(--r-badge);
  font-size:12.5px;line-height:1.4;border:1px solid var(--line-strong);color:var(--text-1);
  background:rgba(255,255,255,.03);white-space:nowrap
}
.badge--live{color:var(--ok);border-color:rgba(61,220,151,.35);background:rgba(61,220,151,.08)}
.badge--amber{color:var(--amber-500);border-color:rgba(255,176,32,.32);background:rgba(255,176,32,.08)}
.badge--brand{color:var(--brand-300);border-color:rgba(36,224,200,.32);background:rgba(36,224,200,.08)}
.badge__pulse{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(61,220,151,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(61,220,151,.55)}70%{box-shadow:0 0 0 8px rgba(61,220,151,0)}100%{box-shadow:0 0 0 0 rgba(61,220,151,0)}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),filter .22s var(--ease)
}
.btn--sm{padding:9px 16px;font-size:14px}
.btn--pill{border-radius:999px}
.btn--primary{
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);color:#04121A;
  box-shadow:0 0 0 1px rgba(36,224,200,.5),0 10px 30px -10px rgba(36,224,200,.55)
}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.65),0 16px 42px -12px rgba(36,224,200,.7);color:#04121A}
.btn--primary:active{transform:translateY(0);filter:brightness(.98)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text-0)}
.btn--ghost:hover{background:rgba(255,255,255,.06);transform:translateY(-2px);color:var(--text-0)}
.btn--ghost:active{transform:translateY(0)}
.btn--block{width:100%}
.link-ghost{color:var(--blue-400);font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-ghost:hover{color:var(--brand-300);text-decoration:underline}
.link-ghost svg{transition:transform .22s var(--ease)}
.link-ghost:hover svg{transform:translateX(3px)}

/* ============ 页头 banner ============ */
.page-banner{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  padding:64px 0 56px;
}
.page-banner__bg{
  position:absolute;inset:0;z-index:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.18;filter:saturate(.8)
}
.page-banner::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(6,10,18,.55),rgba(6,10,18,.92) 78%,var(--bg-0));
}
.page-banner .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-1)}
.breadcrumb a:hover{color:var(--brand-300)}
.breadcrumb .sep{color:var(--text-2)}
.breadcrumb .current{color:var(--text-1)}
.page-banner h1{font-size:clamp(30px,5vw,46px);line-height:1.15;font-weight:700;max-width:820px}
.page-banner .lead{margin-top:16px;max-width:720px;color:var(--text-1);font-size:16px}
.banner-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}

/* ============ 通用板块 ============ */
.section{padding:var(--section) 0}
.section--tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700}
.section-head p{color:var(--text-1);font-size:15px;margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-300);letter-spacing:1.4px;text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-500)}

/* ============ 数据条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden
}
.metric{background:var(--bg-1);padding:26px 22px}
.metric__num{font-size:34px;font-weight:700;line-height:1.1;color:var(--text-0);font-variant-numeric:tabular-nums}
.metric__num small{font-size:15px;color:var(--brand-300);margin-left:4px;font-weight:600}
.metric__label{margin-top:8px;font-size:13px;color:var(--text-2)}

/* ============ 时间线 ============ */
.timeline-wrap{position:relative}
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:24px;top:14px;bottom:26px;width:1px;
  background:linear-gradient(180deg,rgba(36,224,200,.7),rgba(36,224,200,.22) 45%,rgba(255,255,255,.06))
}
.step{position:relative;padding:0 0 46px 74px}
.step:last-child{padding-bottom:0}
.step__node{
  position:absolute;left:0;top:2px;width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--brand-300);
  background:var(--bg-2);border:1px solid var(--line-strong);
  font-variant-numeric:tabular-nums;
  box-shadow:0 12px 30px -18px rgba(0,0,0,.9)
}
.step.is-current .step__node{
  background:linear-gradient(135deg,rgba(36,224,200,.22),rgba(15,169,216,.12));
  border-color:rgba(36,224,200,.5);color:var(--brand-300)
}
.step__body{
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--shadow);
  transition:border-color .22s var(--ease),transform .22s var(--ease)
}
.step__body:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.step__head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.step__body h3{font-size:20px;line-height:1.4;font-weight:600}
.step__body p{color:var(--text-1);font-size:15.5px;margin-top:10px}
.step__figure{margin-top:18px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--bg-2)}
.step__figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.step__meta{display:flex;gap:16px;flex-wrap:wrap;margin-top:16px;font-size:13px;color:var(--text-2)}
.step__meta b{color:var(--amber-500);font-weight:600;font-variant-numeric:tabular-nums}

/* ============ 风险卡 ============ */
.risk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
  transition:border-color .22s var(--ease),transform .22s var(--ease)
}
.card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.card p{color:var(--text-1);font-size:15px}
.card__icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(111,168,255,.10);border:1px solid rgba(111,168,255,.24);color:var(--blue-400)
}
.card__icon--warn{background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.28);color:var(--amber-500)}
.card__icon--ok{background:rgba(61,220,151,.10);border-color:rgba(61,220,151,.28);color:var(--ok)}

/* ============ FAQ ============ */
.faq{max-width:860px}
.faq__item{border:1px solid var(--line);border-radius:var(--r-card);background:rgba(255,255,255,.03);margin-bottom:14px;overflow:hidden;transition:border-color .22s var(--ease)}
.faq__item.is-open{border-color:var(--line-strong)}
.faq__q{
  width:100%;display:flex;align-items:center;gap:16px;padding:20px 24px;background:none;border:0;
  color:var(--text-0);font-size:16px;font-weight:600;text-align:left;cursor:pointer;line-height:1.6
}
.faq__q:hover{background:rgba(255,255,255,.03)}
.faq__idx{color:var(--brand-500);font-variant-numeric:tabular-nums;font-size:14px;min-width:26px}
.faq__sign{margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative}
.faq__sign::before,.faq__sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-1);border-radius:2px;transition:transform .3s var(--ease),background .3s var(--ease)
}
.faq__sign::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.faq__sign::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.faq__item.is-open .faq__sign::before,.faq__item.is-open .faq__sign::after{background:var(--brand-300)}
.faq__item.is-open .faq__sign::after{transform:translate(-50%,-50%) scaleY(0)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq__a-in{padding:0 24px 22px 66px;color:var(--text-1);font-size:14.5px;line-height:1.9}

/* ============ 交叉链接带 ============ */
.cross{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.cross__in{display:flex;align-items:center;gap:16px;padding:26px 0;flex-wrap:wrap}
.cross__label{font-size:13px;color:var(--text-2);letter-spacing:1px}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--text-1);font-size:14px;
  background:rgba(255,255,255,.03);transition:all .22s var(--ease)
}
.pill:hover{color:var(--text-0);border-color:rgba(36,224,200,.5);background:rgba(36,224,200,.08);transform:translateY(-2px)}
.pill.is-current{color:#04121A;background:linear-gradient(135deg,var(--brand-500),#0FA9D8);border-color:transparent;font-weight:600}
.pill.is-current:hover{color:#04121A;transform:none}

/* ============ 结尾 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:radial-gradient(560px 240px at 12% 20%, rgba(36,224,200,.14), transparent 70%), var(--bg-1);
  flex-wrap:wrap
}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);line-height:1.35;font-weight:700}
.cta-band p{color:var(--text-1);font-size:15px;margin-top:10px;max-width:560px}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:rgba(6,10,18,.72)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 44px}
.site-footer h4{font-size:14px;color:var(--text-0);margin-bottom:18px;font-weight:600;letter-spacing:.6px}
.footer-brand p{color:var(--text-1);font-size:14.5px;margin-top:16px;max-width:320px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--text-1);font-size:14.5px}
.footer-links a:hover{color:var(--brand-300)}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-1);background:rgba(255,255,255,.03)
}
.socials a:hover{color:var(--brand-300);border-color:rgba(36,224,200,.4);transform:translateY(-2px)}
.footer-form{max-width:560px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;color:var(--text-1);margin-bottom:8px}
.field input{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line-strong);
  color:var(--text-0);font-size:14.5px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease)
}
.field input::placeholder{color:var(--text-2)}
.field input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(36,224,200,.14)}
.field.is-error input{border-color:var(--err)}
.field.is-ok input{border-color:var(--ok)}
.form-hint{font-size:13px;color:var(--text-2);margin-top:8px}
.field.is-error .form-hint{color:var(--err)}
.field.is-ok .form-hint{color:var(--ok)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0 26px;font-size:13px;color:var(--text-2)
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--brand-300)}

/* ============ 抽屉 + 浮动 CTA ============ */
.drawer{
  position:fixed;inset:0;z-index:1000;background:rgba(6,10,18,.96);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:24px;display:flex;flex-direction:column;gap:8px;
  transform:translateY(-12px);opacity:0;visibility:hidden;transition:all .25s var(--ease)
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__close{
  width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);color:var(--text-0);cursor:pointer;display:grid;place-items:center
}
.drawer a.drawer__link{
  padding:16px 18px;border-radius:var(--r-sm);border:1px solid var(--line);
  color:var(--text-0);font-size:16px;font-weight:600;background:rgba(255,255,255,.03)
}
.drawer a.drawer__link:hover,.drawer a.drawer__link.is-active{border-color:rgba(36,224,200,.45);color:var(--brand-300)}
.drawer .btn{margin-top:18px}
body.is-locked{overflow:hidden}

.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:999px;
  background:rgba(17,26,46,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(36,224,200,.35);color:var(--text-0);font-size:14.5px;font-weight:600;
  box-shadow:0 0 0 1px rgba(36,224,200,.22),0 18px 40px -18px rgba(0,0,0,.9);
  opacity:0;transform:translateY(12px);pointer-events:none;transition:all .28s var(--ease)
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{color:var(--brand-300);border-color:rgba(36,224,200,.6)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--section:96px}
  .metrics{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  :root{--section:72px}
  .nav__links{display:none}
  .nav__toggle{display:inline-flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .risk-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--section:56px}
  body{font-size:15.5px;padding-bottom:84px}
  .container{padding:0 16px}
  .nav{min-height:60px;gap:12px}
  .logo__text{font-size:15px}
  .nav__tail .badge{display:none}
  .page-banner{padding:48px 0 42px}
  .step{padding-left:60px}
  .timeline::before{left:20px}
  .step__node{width:40px;height:40px;border-radius:12px;font-size:14px}
  .step__body{padding:20px}
  .step__body h3{font-size:18px}
  .risk-grid{grid-template-columns:1fr}
  .faq__a-in{padding-left:24px}
  .cta-band{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 30px}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom));
    border-left:0;border-right:0;border-bottom:0
  }
  .metrics{grid-template-columns:1fr}
  .metric{padding:22px 20px}
}
@media (max-width:480px){
  .btn{width:100%}
  .btn--sm{width:auto}
  .section-head{align-items:flex-start}
  .metric__num{font-size:28px}
}

/* roulang page: category4 */
:root{
  --bg-0:#060A12;
  --bg-1:#0A1120;
  --bg-2:#111A2E;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand-500:#24E0C8;
  --brand-600:#12B7A6;
  --brand-300:#7BF3E4;
  --blue-400:#6FA8FF;
  --amber-500:#FFB020;
  --ok:#3DDC97;
  --warn:#FFB020;
  --err:#FF6B6B;
  --text-0:#EAF2FF;
  --text-1:#A8B7CF;
  --text-2:#6C7C96;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:6px;
  --shadow-card:0 20px 50px -24px rgba(0,0,0,.75);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100%;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text-0);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(58% 42% at 10% 0%, rgba(36,224,200,.10), transparent 70%),
    radial-gradient(52% 42% at 100% 100%, rgba(111,168,255,.09), transparent 70%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
  background-attachment:fixed,fixed,scroll,scroll;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--blue-400);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease);}
a:hover{color:var(--brand-300);}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
input{font:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
h1{font-size:clamp(30px,5vw,52px);line-height:1.15;}
h2{font-size:clamp(24px,3.2vw,34px);}
h3{font-size:20px;font-weight:600;line-height:1.4;}
h4{font-size:15px;font-weight:600;color:var(--text-1);letter-spacing:.04em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;box-shadow:0 0 0 4px rgba(36,224,200,.18);border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* ---------- 顶部状态条 ---------- */
.status-bar{
  background:linear-gradient(90deg,rgba(36,224,200,.14),rgba(111,168,255,.10));
  border-bottom:1px solid var(--line);
  font-size:13px;
}
.status-bar .container{display:flex;align-items:center;gap:12px;min-height:36px;}
.status-bar__dot{width:7px;height:7px;border-radius:50%;background:var(--amber-500);box-shadow:0 0 0 4px rgba(255,176,32,.16);}
.status-bar__text{color:var(--text-1);}
.status-bar__text b{color:var(--amber-500);font-variant-numeric:tabular-nums;}
.status-bar__close{margin-left:auto;color:var(--text-2);display:inline-flex;padding:4px;border-radius:var(--r-sm);}
.status-bar__close:hover{color:var(--text-0);background:rgba(255,255,255,.06);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:800;
  background:rgba(8,13,24,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:24px;min-height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);flex-shrink:0;}
.logo__mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  font-size:16px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  box-shadow:0 0 0 1px rgba(36,224,200,.5);
}
.logo__text{font-size:16px;font-weight:600;letter-spacing:.01em;}
.logo__sep{color:var(--text-2);margin:0 2px;}
.logo__text b{font-weight:700;color:var(--brand-300);}
.nav__links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav__link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 12px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--text-1);
  white-space:nowrap;
}
.nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:linear-gradient(90deg,#24E0C8,#12B7A6);
  border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav__link:hover{color:var(--text-0);background:rgba(255,255,255,.05);}
.nav__link.is-active{color:var(--text-0);}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__tail{display:flex;align-items:center;gap:12px;margin-left:auto;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 10px;border-radius:var(--r-sm);
  font-size:12.5px;line-height:1.5;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text-1);
  white-space:nowrap;
}
.badge--live{color:var(--ok);border-color:rgba(61,220,151,.32);background:rgba(61,220,151,.08);}
.badge--live .badge__pulse{width:7px;height:7px;border-radius:50%;background:var(--ok);animation:pulse 1.8s infinite;}
.badge--amber{color:var(--amber-500);border-color:rgba(255,176,32,.32);background:rgba(255,176,32,.08);}
.badge--brand{color:var(--brand-300);border-color:rgba(36,224,200,.34);background:rgba(36,224,200,.10);}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.nav__toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-md);
  border:1px solid var(--line-strong);
  align-items:center;justify-content:center;
  color:var(--text-0);
}
.nav__toggle:hover{background:rgba(255,255,255,.06);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
}
.btn--pill{border-radius:999px;}
.btn--sm{padding:9px 16px;font-size:13.5px;}
.btn--primary{
  background:linear-gradient(135deg,#24E0C8,#0FA9D8);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(36,224,200,.5),0 10px 30px -10px rgba(36,224,200,.55);
}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.6),0 14px 38px -10px rgba(36,224,200,.7);color:#04121A;}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text-0);}
.btn--ghost:hover{background:rgba(255,255,255,.06);color:var(--text-0);}
.btn--ghost:active{transform:translateY(1px);}
.link-ghost{color:var(--blue-400);font-size:14.5px;display:inline-flex;align-items:center;gap:6px;}
.link-ghost:hover{color:var(--brand-300);text-decoration:underline;}

/* ---------- 页头 banner ---------- */
.page-banner{
  position:relative;
  padding:56px 0 52px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.86),rgba(6,10,18,.94)),radial-gradient(60% 80% at 15% 20%,rgba(36,224,200,.12),transparent 70%);
}
.page-banner .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-1);}
.breadcrumb a:hover{color:var(--brand-300);}
.breadcrumb span[aria-current]{color:var(--text-2);}
.page-banner h1{max-width:820px;}
.page-banner__lead{margin-top:16px;max-width:720px;color:var(--text-1);font-size:15.5px;}
.page-banner__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 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{margin-bottom:14px;}
.section-head p{color:var(--text-1);margin-bottom:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--brand-300);
  letter-spacing:.14em;text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand-500);border-radius:2px;}

/* 指标条 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.metric{
  padding:24px;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.metric__value{font-size:32px;font-weight:700;line-height:1.1;color:var(--brand-300);font-variant-numeric:tabular-nums;}
.metric__value small{font-size:14px;color:var(--text-1);font-weight:600;margin-left:4px;}
.metric__label{margin-top:10px;font-size:13px;color:var(--text-2);}

/* 对比表 */
.compare-figure{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
  margin-bottom:32px;
  box-shadow:var(--shadow-card);
}
.compare-figure img{width:100%;aspect-ratio:16/7;object-fit:cover;opacity:.9;}
.compare-figure figcaption{padding:14px 22px;font-size:13px;color:var(--text-2);border-top:1px solid var(--line);}
.table-wrap{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
  overflow-x:auto;
}
table.compare{width:100%;min-width:680px;border-collapse:collapse;font-size:15px;}
table.compare caption{
  text-align:left;padding:22px 24px 6px;font-size:13px;color:var(--text-2);
}
table.compare th,table.compare td{
  padding:16px 24px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);
}
table.compare thead th{
  font-size:13px;letter-spacing:.06em;color:var(--text-1);font-weight:600;
  background:rgba(255,255,255,.03);
  border-bottom:1px solid var(--line-strong);
}
table.compare tbody tr:nth-child(even){background:rgba(255,255,255,.02);}
table.compare tbody tr:hover{background:rgba(36,224,200,.05);}
table.compare tbody th{
  font-weight:600;color:var(--text-0);font-size:15px;width:24%;
}
table.compare tbody th small{display:block;font-weight:400;color:var(--text-2);font-size:12.5px;margin-top:4px;}
table.compare td{color:var(--text-1);}
table.compare td em{font-style:normal;color:var(--brand-300);}
.table-note{margin-top:16px;font-size:13px;color:var(--text-2);}

/* 折叠面板 */
.panel-list{display:grid;gap:12px;max-width:900px;}
.panel{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:rgba(255,255,255,.03);
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.panel:hover{border-color:var(--line-strong);}
.panel.is-open{border-color:rgba(36,224,200,.36);background:rgba(36,224,200,.05);}
.panel__btn{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-0);
}
.panel__idx{
  flex-shrink:0;width:28px;height:28px;border-radius:8px;
  display:grid;place-items:center;
  font-size:13px;color:var(--brand-300);
  border:1px solid rgba(36,224,200,.34);
  background:rgba(36,224,200,.10);
  font-variant-numeric:tabular-nums;
}
.panel__icon{
  margin-left:auto;flex-shrink:0;width:22px;height:22px;
  display:grid;place-items:center;color:var(--text-1);
  transition:transform .3s var(--ease),color .22s var(--ease);
}
.panel.is-open .panel__icon{transform:rotate(45deg);color:var(--brand-300);}
.panel__body{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.panel__inner{padding:0 22px 22px 64px;color:var(--text-1);font-size:14.5px;line-height:1.9;}
.panel__inner p{margin-bottom:.7em;}

/* 交叉链接带 */
.cross-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--bg-1);
  padding:36px 0;
}
.cross-band__inner{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.cross-band__title{font-size:13px;color:var(--text-2);letter-spacing:.1em;}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  border:1px solid var(--line-strong);
  font-size:14px;color:var(--text-1);
  background:rgba(255,255,255,.03);
  transition:transform .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.chip:hover{color:var(--text-0);border-color:var(--brand-500);background:rgba(36,224,200,.10);transform:translateY(-2px);}
.chip.is-current{color:#04121A;background:linear-gradient(135deg,#24E0C8,#0FA9D8);border-color:transparent;font-weight:600;}
.chip.is-current::after{content:"当前";font-size:11px;opacity:.75;}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;
  padding:56px 0;
  border-top:1px solid var(--line);
  background:radial-gradient(70% 180% at 12% 50%,rgba(36,224,200,.14),transparent 70%);
}
.cta-band__inner{display:flex;align-items:center;gap:24px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--text-1);margin:0;max-width:640px;}
.cta-band__action{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{color:var(--text-1);font-size:14px;max-width:320px;}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials a{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--text-1);
  background:rgba(255,255,255,.03);
}
.socials a:hover{color:var(--brand-300);border-color:rgba(36,224,200,.4);background:rgba(36,224,200,.10);}
.site-footer h4{margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:var(--text-1);font-size:14px;}
.footer-links a:hover{color:var(--brand-300);}
.footer-form{display:grid;gap:12px;max-width:420px;}
.field{display:grid;gap:8px;}
.field label{font-size:13px;color:var(--text-1);}
.field input{
  width:100%;padding:12px 14px;border-radius:var(--r-md);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-strong);
  color:var(--text-0);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field input::placeholder{color:var(--text-2);}
.field input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(36,224,200,.16);}
.field.is-error input{border-color:var(--err);box-shadow:0 0 0 4px rgba(255,107,107,.14);}
.form-hint{font-size:13px;color:var(--text-2);}
.field.is-error .form-hint{color:var(--err);}
.field.is-ok .form-hint{color:var(--ok);}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 20px;border-radius:999px;
  background:rgba(10,17,32,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(36,224,200,.42);
  color:var(--text-0);font-size:14.5px;font-weight:600;
  box-shadow:0 18px 40px -22px rgba(0,0,0,.9);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{color:var(--brand-300);transform:translateY(-3px);}
.mobile-bar{display:none;}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:950;
  background:rgba(6,10,18,.96);
  backdrop-filter:blur(10px);
  padding:28px 24px calc(28px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer__close{width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--text-0);}
.drawer__link{
  display:block;padding:16px 4px;font-size:17px;color:var(--text-0);
  border-bottom:1px solid var(--line);
}
.drawer__link.is-active{color:var(--brand-300);}
.drawer .btn{margin-top:24px;width:100%;}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .nav__links{gap:2px;}
  .nav__link{padding:8px 10px;font-size:14px;}
}
@media (max-width:1023px){
  .nav__links{display:none;}
  .nav__toggle{display:inline-flex;}
  .nav{gap:16px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .compare-figure img{aspect-ratio:16/9;}
}
@media (max-width:767px){
  body{font-size:15.5px;padding-bottom:84px;}
  .container{padding:0 16px;}
  .status-bar .container{min-height:34px;}
  .badge--live{display:none;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .metrics{grid-template-columns:1fr 1fr;gap:12px;}
  .metric{padding:18px;}
  .metric__value{font-size:26px;}
  .page-banner{padding:40px 0 36px;background-attachment:scroll;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;align-items:center;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:900;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(10,17,32,.86);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-top:1px solid var(--line-strong);
  }
  .mobile-bar .btn--primary{flex:1;}
  .mobile-bar__icon{
    width:44px;height:44px;border-radius:var(--r-md);
    border:1px solid var(--line-strong);
    display:grid;place-items:center;color:var(--text-1);flex-shrink:0;
  }
  .panel__inner{padding-left:22px;}
  .cta-band__action{margin-left:0;width:100%;}
  .cta-band__action .btn{width:100%;}
}
@media (max-width:520px){
  .metrics{grid-template-columns:1fr;}
  .page-banner h1{font-size:30px;}
  .btn{padding:12px 18px;font-size:14.5px;}
  .logo__text{font-size:15px;}
  .status-bar__text{font-size:12.5px;}
}