/* roulang page: index */
:root{
  --bg-0:#070B14;--bg-1:#0B1220;--bg-2:#101A2C;
  --glass:rgba(18,28,46,.55);--glass-strong:rgba(22,34,54,.78);
  --line:rgba(120,200,255,.14);--line-hot:rgba(22,224,200,.38);
  --brand:#16E0C8;--brand-ink:#04231F;--brand-2:#7A5CFF;
  --accent:#FF7A45;--accent-ink:#2A0E05;
  --text-1:#EAF2FF;--text-2:#A9BBD4;--text-3:#6E819C;
  --r-sm:10px;--r-md:14px;--r-lg:18px;--r-xl:26px;--r-pill:999px;
  --sh-1:0 6px 20px -10px rgba(0,0,0,.6);
  --sh-2:0 18px 44px -22px rgba(0,0,0,.75);
  --glow-brand:0 0 0 1px rgba(22,224,200,.35),0 10px 34px -10px rgba(22,224,200,.5);
  --glow-accent:0 0 0 1px rgba(255,122,69,.4),0 10px 30px -10px rgba(255,122,69,.55);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --nav-h:64px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;font-family:var(--font-cn);font-size:16px;line-height:1.75;
  color:var(--text-1);background-color:var(--bg-0);
  background-image:
    radial-gradient(720px 480px at 18% -6%,rgba(22,224,200,.16),transparent 70%),
    radial-gradient(600px 420px at 92% 4%,rgba(122,92,255,.13),transparent 72%),
    linear-gradient(180deg,#070B14 0%,#080D18 60%,#070B14 100%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .16s ease-out,background-color .16s ease-out,border-color .16s ease-out;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
::selection{background:rgba(22,224,200,.28);color:#fff;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.mono{font-variant-numeric:tabular-nums;}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(7,11,20,.86),rgba(7,11,20,.28));
  border-bottom:1px solid transparent;
  transition:height .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,backdrop-filter .18s ease-out;
}
.site-header.is-scrolled{
  height:52px;background:var(--glass-strong);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-hot);box-shadow:var(--sh-1);
}
.nav-wrap{display:flex;align-items:center;gap:28px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  color:#04231F;font-size:15px;box-shadow:var(--glow-brand);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-top{font-size:15px;font-weight:700;letter-spacing:.06em;color:var(--text-1);}
.brand-bottom{font-size:11px;font-weight:500;letter-spacing:.16em;color:var(--text-3);}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;min-width:0;}
.nav-link{
  position:relative;padding:9px 13px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--text-2);white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(22,224,200,.06);}
.nav-link.is-active{color:var(--text-1);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.nav-side{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  position:relative;display:flex;align-items:center;
  height:40px;width:210px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color .16s ease-out,box-shadow .16s ease-out,background-color .16s ease-out;
}
.search-box i{position:absolute;left:14px;font-size:13px;color:var(--text-3);}
.search-box input{
  width:100%;height:100%;padding:0 16px 0 36px;font-size:13.5px;
  color:var(--text-1);background:transparent;border:0;border-radius:var(--r-pill);
}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 4px rgba(22,224,200,.1);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  align-items:center;justify-content:center;font-size:17px;color:var(--text-1);
  background:var(--glass);border:1px solid var(--line);
}
.mobile-drawer{
  position:fixed;inset:0;z-index:1200;display:flex;flex-direction:column;
  padding:16px 20px 32px;background:rgba(7,11,20,.95);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transform:translateX(102%);transition:transform .24s ease-out;visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:6px 0 18px;border-bottom:1px solid var(--line);}
.drawer-close{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-size:17px;background:var(--glass);border:1px solid var(--line);}
.drawer-links{display:flex;flex-direction:column;padding:14px 0;flex:1;}
.drawer-link{padding:14px 4px;font-size:17px;font-weight:500;color:var(--text-2);border-bottom:1px solid rgba(120,200,255,.08);}
.drawer-link:hover,.drawer-link.is-active{color:var(--brand);}
.drawer-search{margin:12px 0 18px;}
.drawer-search .search-box{width:100%;height:46px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:14.5px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .14s ease-out,box-shadow .14s ease-out,background-color .14s ease-out,color .14s ease-out,border-color .14s ease-out;
}
.btn:active{transform:translateY(0);}
.btn-main{background:var(--accent);color:var(--accent-ink);box-shadow:var(--glow-accent);}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,122,69,.45),0 16px 40px -12px rgba(255,122,69,.7);filter:brightness(1.06);color:var(--accent-ink);}
.btn-brand{background:linear-gradient(120deg,var(--brand),#3ee6d4);color:var(--brand-ink);box-shadow:var(--glow-brand);}
.btn-brand:hover{transform:translateY(-2px);filter:brightness(1.06);color:var(--brand-ink);}
.btn-line{background:transparent;color:var(--text-1);border-color:var(--line);}
.btn-line:hover{transform:translateY(-2px);border-color:var(--line-hot);background:rgba(22,224,200,.06);color:var(--text-1);}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--text-1);border-color:var(--line);}
.btn-ghost:hover{background:rgba(255,255,255,.08);color:var(--text-1);}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;}
.btn-xs{height:32px;padding:0 12px;font-size:13px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ===== 通用板块 ===== */
.section{padding:96px 0;position:relative;}
.section-sm{padding:72px 0;}
.section-head{margin-bottom:28px;}
.section-tag{
  display:inline-flex;align-items:center;gap:7px;margin-bottom:12px;
  padding:5px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.24);
}
.section-title{font-size:clamp(22px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.section-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:720px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:500;color:var(--text-2);
  background:transparent;border:1px solid var(--line);transition:all .16s ease-out;
}
.chip:hover{color:var(--text-1);border-color:var(--line-hot);background:rgba(22,224,200,.06);}
.chip.is-on{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);font-weight:600;}
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:11.5px;font-weight:600;color:var(--brand);background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.2);
}
.badge-hot{
  display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:11.5px;font-weight:600;color:var(--accent);background:rgba(255,122,69,.06);border:1px solid rgba(255,122,69,.4);
}
.badge-time{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:var(--r-pill);
  font-size:11.5px;color:var(--text-1);background:rgba(7,11,20,.72);border:1px solid var(--line);
}

/* ===== Hero ===== */
.hero{padding:calc(var(--nav-h) + 32px) 0 72px;position:relative;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,200,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(70% 60% at 50% 20%,#000,transparent 78%);
  mask-image:radial-gradient(70% 60% at 50% 20%,#000,transparent 78%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.05fr .78fr;
  gap:48px;align-items:center;min-height:82vh;
}
.hero-copy{max-width:620px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;padding:6px 14px;
  border-radius:var(--r-pill);font-size:12.5px;font-weight:600;color:var(--brand);
  background:rgba(22,224,200,.08);border:1px solid rgba(22,224,200,.24);
}
.hero h1{font-size:clamp(28px,4.2vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.02em;}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--brand) 10%,var(--brand-2) 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:20px;font-size:17px;color:var(--text-2);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.stat-num{font-size:24px;font-weight:700;color:var(--text-1);letter-spacing:-.01em;}
.stat-num span{font-size:14px;color:var(--brand);margin-left:2px;}
.stat-label{margin-top:2px;font-size:12.5px;color:var(--text-3);letter-spacing:.04em;}

.hero-visual{position:relative;display:flex;justify-content:flex-end;}
.hero-card{
  position:relative;width:100%;max-width:352px;aspect-ratio:9/16;overflow:hidden;
  border-radius:var(--r-xl);border:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;box-shadow:var(--sh-2);
}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.55) 0%,rgba(7,11,20,.62) 45%,rgba(7,11,20,.9) 100%);
}
.hero-card-top{position:absolute;top:16px;left:16px;right:16px;z-index:2;display:flex;justify-content:space-between;align-items:flex-start;gap:10px;}
.play-ring{
  position:absolute;top:50%;left:50%;z-index:2;transform:translate(-50%,-50%);
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  font-size:16px;color:var(--brand);background:rgba(7,11,20,.6);
  border:1.5px solid rgba(22,224,200,.65);
  box-shadow:0 0 0 1px rgba(22,224,200,.2),0 0 30px -4px rgba(22,224,200,.5);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 1px rgba(22,224,200,.2),0 0 26px -6px rgba(22,224,200,.45);}
  50%{box-shadow:0 0 0 8px rgba(22,224,200,.06),0 0 42px -4px rgba(22,224,200,.6);}
}
.hero-card-body{position:absolute;left:18px;right:18px;bottom:18px;z-index:2;}
.hero-card-title{font-size:17px;font-weight:600;line-height:1.4;margin-top:12px;}
.hero-card-meta{margin-top:8px;font-size:12.5px;color:var(--text-2);}

/* ===== 轨道 ===== */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 22px;margin:0 -2px;scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:rgba(120,200,255,.18);border-radius:99px;}
.rail::-webkit-scrollbar-track{background:transparent;}
.clip-card{
  position:relative;flex:0 0 250px;scroll-snap-align:start;
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--glass);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.clip-card:hover{transform:translateY(-4px);border-color:var(--line-hot);box-shadow:var(--sh-2);}
.clip-cover{position:relative;aspect-ratio:9/16;overflow:hidden;}
.clip-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out;}
.clip-card:hover .clip-cover img{transform:scale(1.04);}
.clip-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.34) 0%,transparent 38%,rgba(7,11,20,.88) 100%);}
.clip-top{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:center;gap:8px;z-index:2;}
.clip-body{position:absolute;left:14px;right:14px;bottom:14px;z-index:2;}
.clip-title{font-size:14.5px;font-weight:600;line-height:1.42;margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clip-tag{margin-top:8px;font-size:12px;color:var(--text-3);}
.rail-nav{
  position:absolute;top:-58px;right:0;display:flex;gap:10px;
}
.rail-btn{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  font-size:14px;color:var(--text-1);background:var(--glass);
  border:1px solid var(--line);transition:all .16s ease-out;
}
.rail-btn:hover{border-color:var(--line-hot);color:var(--brand);background:rgba(22,224,200,.08);}
.rail-btn.is-off{opacity:.4;}

/* ===== 清单 ===== */
.pick-grid{display:grid;grid-template-columns:1.42fr 1fr;gap:34px;align-items:start;}
.pick-list{border-top:1px solid var(--line);}
.pick-item{
  display:flex;gap:22px;padding:26px 12px 26px 0;border-bottom:1px solid var(--line);
  transition:background-color .18s ease-out,transform .18s ease-out;
}
.pick-item:hover{background:rgba(22,224,200,.045);transform:translateX(4px);}
.pick-num{
  flex:0 0 62px;font-size:40px;line-height:1;font-weight:700;
  background:linear-gradient(160deg,var(--brand),rgba(122,92,255,.85));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.pick-title{font-size:17.5px;font-weight:600;}
.pick-text{margin-top:8px;font-size:14.5px;color:var(--text-2);}
.pick-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.pick-chips span{
  font-size:12px;padding:4px 10px;border-radius:var(--r-pill);
  color:var(--text-2);background:rgba(120,200,255,.06);border:1px solid var(--line);
}
.side-panel{
  position:sticky;top:96px;border-radius:var(--r-xl);padding:26px;
  background:var(--glass-strong);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:var(--sh-2);
}
.side-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,200,.7),transparent);
  border-radius:var(--r-xl) var(--r-xl) 0 0;
}
.side-panel{position:sticky;}
.side-title{font-size:18px;font-weight:700;}
.side-count{margin-top:6px;font-size:13px;color:var(--text-3);}
.side-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.side-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);}
.side-list li i{color:var(--brand);font-size:12px;margin-top:6px;}
.side-panel .btn{width:100%;margin-top:22px;}
.side-note{margin-top:14px;font-size:12.5px;color:var(--text-3);text-align:center;}

/* ===== 最新信息 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:var(--sh-2);}
.news-cover{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.news-title{margin-top:12px;font-size:16.5px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--brand);}
.news-excerpt{margin-top:10px;font-size:13.8px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.news-date{font-size:12.5px;color:var(--text-3);min-width:78px;}
.news-more{font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.news-more:hover{color:var(--accent);}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:56px 24px;border-radius:var(--r-xl);text-align:center;
  background:var(--glass);border:1px dashed var(--line);
}
.empty-state i{font-size:28px;color:var(--brand);margin-bottom:14px;}
.empty-state p{font-size:14.5px;color:var(--text-2);}
.empty-state .btn{margin-top:18px;}

/* ===== 口碑 ===== */
.voice-rail{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 2px 20px;}
.voice-card{
  position:relative;flex:0 0 320px;scroll-snap-align:start;padding:22px;
  border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line);
  min-height:170px;display:flex;flex-direction:column;gap:12px;
}
.voice-card::before{
  content:"";position:absolute;top:-7px;left:26px;width:14px;height:14px;
  background:var(--glass);border-left:1px solid var(--line);border-top:1px solid var(--line);
  transform:rotate(45deg);
}
.voice-head{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  font-size:14px;font-weight:700;color:var(--brand-ink);
  background:linear-gradient(140deg,var(--brand),#5fe9d9);
}
.voice-name{font-size:14.5px;font-weight:600;}
.stars{font-size:11.5px;color:var(--accent);letter-spacing:2px;}
.voice-text{font-size:14px;color:var(--text-2);line-height:1.75;}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:.85fr 1.3fr;gap:40px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--r-md);background:var(--glass);border:1px solid var(--line);
  overflow:hidden;transition:border-color .16s ease-out,background-color .16s ease-out;
}
.faq-item.is-open{border-color:var(--line-hot);background:var(--glass-strong);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;text-align:left;color:var(--text-1);
}
.faq-q i{font-size:13px;color:var(--brand);transition:transform .22s ease-out;flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out;}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--text-2);line-height:1.8;}
.faq-aside{border-radius:var(--r-xl);padding:26px;background:var(--glass);border:1px solid var(--line);}
.faq-aside h3{font-size:18px;font-weight:700;}
.faq-aside p{margin-top:12px;font-size:14px;color:var(--text-2);}
.faq-aside .btn{width:100%;margin-top:20px;}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  border:1px solid var(--line);padding:44px 44px;
  background-image:linear-gradient(90deg,rgba(7,11,20,.92),rgba(7,11,20,.62)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-band h2{font-size:clamp(21px,2.4vw,30px);font-weight:700;line-height:1.3;}
.cta-band p{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.sticky-bar{display:none;}

/* ===== 页脚 ===== */
.site-footer{margin-top:24px;padding:64px 0 28px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(11,18,32,.4),rgba(7,11,20,.9));}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{font-size:13.8px;color:var(--text-2);line-height:1.8;max-width:330px;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:13.8px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{font-size:13.8px;color:var(--text-2);display:flex;gap:9px;align-items:flex-start;}
.footer-contact i{color:var(--brand);font-size:12px;margin-top:6px;}
.footer-bottom{
  margin-top:44px;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:12.8px;color:var(--text-3);
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-links a:hover{color:var(--brand);}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .search-box{width:170px;}
  .clip-card{flex:0 0 230px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:40px;min-height:auto;}
  .hero-copy{max-width:none;}
  .hero-visual{justify-content:center;}
  .hero-card{max-width:100%;aspect-ratio:16/10;}
  .pick-grid{grid-template-columns:1fr;}
  .side-panel{position:static;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
  .rail-nav{position:static;justify-content:flex-end;margin-bottom:14px;}
}
@media (max-width:767.98px){
  .container{padding:0 18px;}
  .search-box{display:none;}
  .nav-side{gap:10px;}
  .hero{padding:calc(var(--nav-h) + 24px) 0 56px;}
  .hero-stats{gap:24px;}
  .stat-num{font-size:21px;}
  .clip-card{flex:0 0 62vw;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:56px 0;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
  .brand-bottom{letter-spacing:.1em;}
  .pick-num{flex:0 0 48px;font-size:32px;}
  .pick-item{gap:16px;}
  .voice-card{flex:0 0 82vw;}
  .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .sticky-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:900;
    gap:10px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:var(--glass-strong);border-top:1px solid var(--line-hot);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    transform:translateY(110%);transition:transform .22s ease-out;
  }
  .sticky-bar.is-show{transform:translateY(0);}
  .sticky-bar .btn{width:auto;flex:1;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#070B14;--bg-1:#0B1220;--bg-2:#101A2C;
  --glass:rgba(18,28,46,.55);--glass-strong:rgba(22,34,54,.78);
  --line:rgba(120,200,255,.14);--line-hot:rgba(22,224,200,.38);
  --brand:#16E0C8;--brand-ink:#04231F;--brand-2:#7A5CFF;
  --accent:#FF7A45;--accent-ink:#2A0E05;
  --text-1:#EAF2FF;--text-2:#A9BBD4;--text-3:#6E819C;
  --r-sm:10px;--r-md:14px;--r-lg:18px;--r-xl:26px;--r-pill:999px;
  --sh-1:0 6px 20px -10px rgba(0,0,0,.6);
  --sh-2:0 18px 44px -22px rgba(0,0,0,.75);
  --glow-brand:0 0 0 1px rgba(22,224,200,.35),0 10px 34px -10px rgba(22,224,200,.5);
  --glow-accent:0 0 0 1px rgba(255,122,69,.4),0 10px 30px -10px rgba(255,122,69,.55);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;color:var(--text-1);font-family:var(--font-cn);font-size:16px;line-height:1.75;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(720px 520px at 50% -180px, rgba(22,224,200,.16), transparent 70%),
    linear-gradient(rgba(120,200,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,255,.04) 1px, transparent 1px);
  background-size:auto,48px 48px,48px 48px;
  background-repeat:no-repeat,repeat,repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--text-1);text-decoration:none;transition:color .16s ease,background .16s ease;}
a:hover{color:var(--brand);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1320px;}}

/* ============ 按钮 / 徽章 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-md);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .14s ease-out,box-shadow .14s ease-out,background .14s ease-out,color .14s ease-out;white-space:nowrap;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-main{background:var(--accent);color:var(--accent-ink);box-shadow:var(--glow-accent);}
.btn-main:hover{color:var(--accent-ink);transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 38px -10px rgba(255,122,69,.7);}
.btn-main:active{transform:translateY(0);box-shadow:var(--glow-accent);}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line);}
.btn-ghost:hover{color:var(--brand);border-color:var(--line-hot);background:rgba(22,224,200,.06);transform:translateY(-2px);}
.btn-brand{background:transparent;color:var(--brand);border-color:var(--line-hot);}
.btn-brand:hover{background:rgba(22,224,200,.08);color:var(--brand);transform:translateY(-2px);}
.badge-cat{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:rgba(22,224,200,.1);color:var(--brand);border:1px solid rgba(22,224,200,.22);}
.chip{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;color:var(--text-2);border:1px solid var(--line);background:transparent;transition:all .16s ease;}
.chip:hover{color:var(--brand);border-color:var(--line-hot);}

/* ============ 导航 ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:64px;
  background:transparent;border-bottom:1px solid transparent;transition:height .18s ease,background .18s ease,border-color .18s ease;}
.site-header.is-scrolled{height:52px;background:var(--glass-strong);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-hot);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:100%;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(22,224,200,.22),rgba(122,92,255,.24));color:var(--brand);
  border:1px solid var(--line-hot);font-size:15px;}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-top{font-size:16px;font-weight:700;letter-spacing:1px;color:var(--text-1);}
.brand-bottom{font-size:11px;letter-spacing:2px;color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-sm);
  font-size:15px;color:var(--text-2);transition:color .16s ease,background .16s ease;}
.nav-link:hover{color:var(--text-1);background:rgba(22,224,200,.06);}
.nav-link.is-active{color:var(--text-1);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));}
.nav-side{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(11,18,32,.7);border:1px solid var(--line);transition:border-color .16s ease,box-shadow .16s ease;}
.search-box i{font-size:13px;color:var(--text-3);}
.search-box input{width:150px;background:transparent;border:0;outline:none;color:var(--text-1);font-size:14px;}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 3px rgba(22,224,200,.12);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-sm);background:transparent;border:1px solid var(--line);
  color:var(--text-1);font-size:16px;cursor:pointer;}
@media (max-width:1100px){.search-box input{width:110px;}}
@media (max-width:991px){
  .site-header{height:56px;background:var(--glass-strong);backdrop-filter:blur(12px);}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .search-box{display:none;}
  .nav-links{position:fixed;top:56px;left:0;right:0;bottom:0;flex-direction:column;align-items:stretch;gap:6px;
    padding:20px 24px 40px;background:var(--glass-strong);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    transform:translateY(-10px);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease,transform .18s ease,visibility .18s;overflow-y:auto;}
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto;}
  .nav-link{height:48px;font-size:17px;color:var(--text-1);}
  .nav-link.is-active::after{left:14px;right:auto;width:48px;}
}

/* ============ 内页 Hero ============ */
.page-hero{position:relative;margin-top:64px;padding:56px 0 48px;overflow:hidden;
  background:linear-gradient(140deg,rgba(122,92,255,.16),rgba(7,11,20,.96)),var(--bg-1);}
.page-hero::before{content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.22;}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.55),rgba(7,11,20,.96));}
.page-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--text-1);}
.crumbs .sep{opacity:.5;}
.crumb-current{max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2);}
.post-title{font-size:clamp(26px,3.6vw,44px);line-height:1.28;font-weight:700;max-width:900px;letter-spacing:.2px;}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin-top:22px;font-size:14px;color:var(--text-2);}
.meta-item{display:inline-flex;align-items:center;gap:7px;font-variant-numeric:tabular-nums;}
.meta-item i{color:var(--text-3);font-size:13px;}
@media (max-width:991px){.page-hero{margin-top:56px;padding:40px 0 34px;}}

/* ============ 正文布局 ============ */
.article-main{padding:72px 0 88px;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:48px;align-items:start;}
.reading{max-width:760px;}
.glass-panel{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);position:relative;}
.glass-panel::before{content:"";position:absolute;top:0;left:14px;right:14px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,200,.5),transparent);}
.article-body{font-size:17px;line-height:1.85;color:var(--text-2);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;color:var(--text-2);}
.article-body h2{font-size:24px;line-height:1.35;font-weight:700;color:var(--text-1);margin:36px 0 14px;padding-left:14px;position:relative;scroll-margin-top:90px;}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));}
.article-body h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--text-1);margin:26px 0 10px;}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 1.1em;}
.article-body ul li{list-style:square;margin-bottom:.5em;}
.article-body ol li{list-style:decimal;margin-bottom:.5em;}
.article-body li::marker{color:var(--brand);}
.article-body blockquote{margin:24px 0;padding:18px 22px;border-left:3px solid var(--brand);border-radius:var(--r-md);
  background:var(--glass);color:var(--text-2);}
.article-body img{border-radius:var(--r-md);margin:22px auto;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body th{color:var(--text-1);font-weight:600;}
.article-body td{color:var(--text-2);}
.article-body tr:first-child th{border-top:1px solid var(--line);}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent);}
.article-body strong{color:var(--text-1);font-weight:600;}

/* 目录 */
.toc{position:sticky;top:86px;padding:20px;}
.toc h3{font-size:13px;letter-spacing:1px;color:var(--text-3);font-weight:600;text-transform:uppercase;margin-bottom:14px;}
.toc ol{display:flex;flex-direction:column;gap:4px;}
.toc a{display:block;padding:7px 10px;border-left:2px solid transparent;border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:14px;color:var(--text-2);line-height:1.5;}
.toc a:hover{color:var(--text-1);background:rgba(22,224,200,.06);}
.toc a.is-current{color:var(--brand);border-left-color:var(--brand);background:rgba(22,224,200,.08);}
@media (max-width:991px){.toc-side{display:none;}.layout{grid-template-columns:minmax(0,1fr);gap:0;}}

/* 空态 */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--glass);}
.empty-state i{font-size:30px;color:var(--brand);}
.empty-state p{color:var(--text-2);font-size:15px;}

/* ============ 文末 ============ */
.post-foot{margin-top:44px;padding-top:28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:18px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.share-row{display:flex;align-items:center;gap:10px;}
.share-row span{font-size:13px;color:var(--text-3);}
.share-btn{width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:14px;transition:all .16s ease;}
.share-btn:hover{color:var(--brand);border-color:var(--line-hot);transform:translateY(-2px);}
.back-row{margin-top:36px;}

/* ============ 相关推荐 ============ */
.related{padding:0 0 88px;}
.sec-head{margin-bottom:28px;}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;color:var(--text-1);}
.sec-head p{margin-top:10px;color:var(--text-2);font-size:15px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);position:relative;}
.news-card::before{content:"";position:absolute;top:0;left:14px;right:14px;height:1px;z-index:3;
  background:linear-gradient(90deg,transparent,rgba(22,224,200,.45),transparent);}
.news-card:hover{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:var(--sh-2);}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-body h3{font-size:17px;line-height:1.5;color:var(--text-1);font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);
  padding-top:12px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums;}
.news-foot .read{color:var(--brand);display:inline-flex;align-items:center;gap:6px;font-weight:600;}
@media (max-width:991px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:600px){.card-grid{grid-template-columns:minmax(0,1fr);}}

/* ============ FAQ ============ */
.faq-sec{padding:0 0 88px;}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:820px;}
.faq-item{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text-1);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  color:var(--brand);transition:transform .2s ease;}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item .faq-ans{padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.8;}

/* ============ CTA 带 ============ */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);
  padding:44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;margin-bottom:96px;}
.cta-band::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.28;}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(7,11,20,.94),rgba(11,18,32,.82));}
.cta-band .cta-inner{position:relative;z-index:2;max-width:620px;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;color:var(--text-1);}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:15px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:991px){.cta-band{padding:32px 24px;border-radius:var(--r-lg);margin-bottom:72px;}}
@media (max-width:600px){.cta-actions{width:100%;}.cta-actions .btn{flex:1 1 auto;}}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px;}
.footer-col h4{font-size:14px;letter-spacing:1.5px;color:var(--text-3);text-transform:uppercase;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.footer-contact i{color:var(--brand);margin-top:4px;font-size:13px;}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:var(--text-3);}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{color:var(--text-3);font-size:13px;}
.footer-links a:hover{color:var(--brand);}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:600px){.footer-grid{grid-template-columns:1fr;}.site-footer{padding:48px 0 24px;}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
}

/* roulang page: category2 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --bg-2:#101A2C;
  --glass:rgba(18,28,46,.55);
  --glass-strong:rgba(22,34,54,.78);
  --line:rgba(120,200,255,.14);
  --line-hot:rgba(22,224,200,.38);
  --brand:#16E0C8;
  --brand-ink:#04231F;
  --brand-2:#7A5CFF;
  --accent:#FF7A45;
  --accent-ink:#2A0E05;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6E819C;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:26px;
  --r-pill:999px;
  --sh-1:0 6px 20px -10px rgba(0,0,0,.6);
  --sh-2:0 18px 44px -22px rgba(0,0,0,.75);
  --glow-brand:0 0 0 1px rgba(22,224,200,.35),0 10px 34px -10px rgba(22,224,200,.5);
  --glow-accent:0 0 0 1px rgba(255,122,69,.4),0 10px 30px -10px rgba(255,122,69,.55);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --header-h:64px;
  --pad-x:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-0);
  background-image:
    radial-gradient(720px 420px at 78% -6%,rgba(22,224,200,.14),transparent 68%),
    radial-gradient(620px 420px at 8% 12%,rgba(122,92,255,.12),transparent 70%),
    linear-gradient(rgba(120,200,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,255,.04) 1px,transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--text-1);}
button{font-family:inherit;}
h1,h2,h3,h4{font-weight:700;color:var(--text-1);margin:0;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.6vw,34px);line-height:1.25;}
.section-head p{color:var(--text-2);margin-top:12px;font-size:15px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand);
  letter-spacing:.16em;text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7;}
.num-mono{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:transform .14s ease-out,box-shadow .14s ease-out,background-color .14s ease-out,color .14s ease-out,border-color .14s ease-out;
  white-space:nowrap;
}
.btn-main{background:var(--accent);color:var(--accent-ink);box-shadow:var(--glow-accent);}
.btn-main:hover{background:#ff8c5c;color:var(--accent-ink);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 38px -10px rgba(255,122,69,.7);}
.btn-main:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(255,122,69,.45),0 6px 18px -10px rgba(255,122,69,.6);}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line);}
.btn-ghost:hover{background:rgba(255,255,255,.05);color:var(--text-1);border-color:rgba(120,200,255,.3);transform:translateY(-2px);}
.btn-line{background:rgba(22,224,200,.06);color:var(--brand);border-color:var(--line-hot);}
.btn-line:hover{background:rgba(22,224,200,.12);color:var(--brand);transform:translateY(-2px);box-shadow:var(--glow-brand);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-md{height:38px;padding:0 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;
  transition:background-color .18s ease,border-color .18s ease,backdrop-filter .18s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:var(--glass-strong);
  backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
}
.nav-wrap{
  height:var(--header-h);
  display:flex;align-items:center;gap:28px;
  transition:height .18s ease;
}
.site-header.is-scrolled .nav-wrap{height:52px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  color:#04231F;font-size:15px;
  box-shadow:0 8px 22px -12px rgba(22,224,200,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-top{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.04em;}
.brand-bottom{font-size:11px;color:var(--text-3);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;}
.nav-link{
  position:relative;
  padding:8px 12px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--text-2);
  transition:color .16s ease,background-color .16s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(22,224,200,.06);}
.nav-link.is-active{color:var(--text-1);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-4px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.nav-side{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.search-box i{color:var(--text-3);font-size:13px;}
.search-box input{
  width:150px;border:0;background:transparent;color:var(--text-1);
  font-size:13.5px;font-family:inherit;outline:none;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 3px rgba(22,224,200,.12);}
.nav-toggle{
  display:none;
  width:38px;height:38px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-1);font-size:15px;cursor:pointer;
  align-items:center;justify-content:center;
}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(20px);
  padding:20px var(--pad-x) 40px;
  display:flex;flex-direction:column;gap:20px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-1);font-size:16px;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:17px;color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-nav a i{font-size:12px;color:var(--text-3);}
.drawer-foot{display:flex;flex-direction:column;gap:12px;margin-top:auto;}
.drawer-search{height:44px;}
.drawer-search input{width:100%;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--text-1);}
.crumb i{font-size:9px;opacity:.7;}
.crumb .now{color:var(--text-2);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding-top:calc(var(--header-h) + 56px);
  padding-bottom:80px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.28;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 92%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 92%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.72),rgba(7,11,20,.94) 70%,var(--bg-0));
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(28px,4.2vw,50px);line-height:1.15;margin-bottom:18px;
}
.hero-copy h1 span{
  background:linear-gradient(100deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:36px;margin-top:40px;
  padding-top:26px;border-top:1px solid var(--line);
}
.stat b{display:block;font-size:26px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat span{font-size:13px;color:var(--text-3);}
.hero-visual{position:relative;}
.phone-card{
  position:relative;aspect-ratio:9/16;max-width:330px;margin-left:auto;
  border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.phone-card img{width:100%;height:100%;object-fit:cover;}
.phone-card .veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.32),rgba(7,11,20,.88));
}
.play-ring{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(11,18,32,.6);
  border:1.5px solid var(--brand);color:var(--brand);font-size:15px;
  box-shadow:0 0 0 1px rgba(22,224,200,.3),0 10px 34px -8px rgba(22,224,200,.55);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 1px rgba(22,224,200,.3),0 10px 34px -8px rgba(22,224,200,.5);}
  50%{box-shadow:0 0 0 8px rgba(22,224,200,.08),0 14px 42px -8px rgba(22,224,200,.7);}
}
.badge-time{
  position:absolute;top:14px;right:14px;
  padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(7,11,20,.72);border:1px solid var(--line);
  font-size:12px;color:var(--text-1);font-variant-numeric:tabular-nums;
}
.phone-meta{position:absolute;left:16px;right:16px;bottom:16px;}
.chip-cat{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(22,224,200,.1);color:var(--brand);
  font-size:12px;margin-bottom:10px;
}
.phone-meta p{font-size:15px;font-weight:600;line-height:1.4;}

/* ---------- 筛选 chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 16px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--line);
  color:var(--text-2);font-size:13.5px;cursor:pointer;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .16s ease;
}
.chip:hover{color:var(--text-1);border-color:var(--line-hot);transform:translateY(-1px);}
.chip.is-on{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);font-weight:600;}

/* ---------- 对比矩阵 ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.matrix-card{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 26px 22px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  overflow:hidden;
}
.matrix-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,200,.6),transparent);
  opacity:.7;
}
.matrix-card:hover{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:var(--sh-2);}
.matrix-card.is-hidden{display:none;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.tag{
  padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;border:1px solid var(--line);color:var(--text-2);
}
.tag.hot{border-color:rgba(255,122,69,.4);color:var(--accent);background:rgba(255,122,69,.06);}
.matrix-card h3{font-size:20px;line-height:1.4;margin-bottom:10px;}
.matrix-card .desc{font-size:14.5px;color:var(--text-2);margin-bottom:18px;}
.matrix-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);
  padding:9px 0;border-bottom:1px solid var(--line);
}
.matrix-list li:last-child{border-bottom:0;}
.matrix-list i{color:var(--brand);font-size:13px;margin-top:5px;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
}
.card-foot a{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.card-foot a:hover{color:var(--accent);}
.card-foot .idx{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.1em;}

/* ---------- 横向对比条 ---------- */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.rail{
  display:flex;gap:16px;overflow-x:auto;padding:6px 2px 18px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:rgba(22,224,200,.3);border-radius:6px;}
.rail-item{
  flex:0 0 280px;scroll-snap-align:start;
  background:var(--glass-strong);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;backdrop-filter:blur(16px);
  transition:border-color .2s ease,transform .2s ease;
}
.rail-item:hover{border-color:var(--line-hot);transform:translateY(-3px);}
.rail-item h4{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.rail-item h4 i{color:var(--brand);font-size:14px;}
.rail-row{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--text-2);
  padding:8px 0;border-bottom:1px dashed var(--line);
}
.rail-row:last-child{border-bottom:0;}
.rail-row b{color:var(--text-1);font-weight:600;font-variant-numeric:tabular-nums;}
.lvl{display:inline-flex;gap:4px;}
.lvl i{width:8px;height:8px;border-radius:2px;background:rgba(120,200,255,.18);display:inline-block;}
.lvl i.on{background:var(--brand);}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.flow-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);aspect-ratio:4/5;
}
.flow-media img{width:100%;height:100%;object-fit:cover;}
.flow-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.1),rgba(7,11,20,.75));
}
.flow-media .cap{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  font-size:14px;color:var(--text-2);
}
.steps{display:flex;flex-direction:column;}
.step{
  display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);
  transition:background-color .2s ease,transform .2s ease;
}
.step:last-child{border-bottom:0;}
.step:hover{background:rgba(22,224,200,.04);transform:translateX(4px);}
.step .no{
  font-size:32px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  min-width:56px;
}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{font-size:14.5px;color:var(--text-2);}

/* ---------- 口碑 ---------- */
.voice-rail{display:flex;gap:16px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory;}
.voice{
  position:relative;flex:0 0 320px;scroll-snap-align:start;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;backdrop-filter:blur(16px);
}
.voice::before{
  content:"";position:absolute;top:-1px;left:26px;width:14px;height:14px;
  background:var(--glass);border-left:1px solid var(--line);border-top:1px solid var(--line);
  transform:rotate(45deg) translateY(-9px);
}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(22,224,200,.28),rgba(122,92,255,.3));
  border:1px solid var(--line);font-size:14px;color:var(--text-1);
}
.voice-head b{font-size:14.5px;font-weight:600;display:block;}
.stars{font-size:11px;color:var(--accent);letter-spacing:2px;}
.voice p{font-size:14.5px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:flex-start;}
.faq-aside{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;backdrop-filter:blur(16px);
  position:sticky;top:96px;
}
.faq-aside h3{font-size:19px;margin-bottom:12px;}
.faq-aside p{font-size:14.5px;color:var(--text-2);margin-bottom:20px;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:border-color .2s ease,background-color .2s ease;
}
.faq-item.is-open{border-color:var(--line-hot);background:var(--glass-strong);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;
  color:var(--text-1);font-size:16px;font-weight:600;text-align:left;
}
.faq-q i{color:var(--brand);font-size:13px;transition:transform .25s ease;flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  padding:44px 40px;
  backdrop-filter:blur(16px);
  background:var(--glass-strong);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.3;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,11,20,.92),rgba(7,11,20,.7));
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(20px,2.4vw,30px);margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--text-2);max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(7,11,20,.95));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--text-2);max-width:340px;}
.footer-col h4{
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-3);font-weight:600;margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-2);}
.footer-contact i{color:var(--brand);font-size:12px;margin-top:5px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-links a{color:var(--text-3);font-size:13px;}
.footer-links a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-link{padding:8px 9px;font-size:14px;}
  .search-box input{width:110px;}
}
@media (max-width:991px){
  :root{--pad-x:20px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .nav-links,.nav-side .search-box,.nav-side .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .phone-card{max-width:280px;margin:0 auto;}
  .matrix-grid{grid-template-columns:1fr;}
  .flow-grid,.faq-wrap{grid-template-columns:1fr;gap:32px;}
  .flow-media{aspect-ratio:16/10;}
  .faq-aside{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:34px 24px;}
  .site-footer{margin-top:72px;}
}
@media (max-width:575px){
  :root{--header-h:56px;--pad-x:16px;}
  .section{padding:56px 0;}
  .hero-copy h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-stats{gap:24px;}
  .stat b{font-size:22px;}
  .rail-item,.voice{flex:0 0 84%;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner{align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .brand-bottom{letter-spacing:.1em;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms;animation-iteration-count:1;transition-duration:.001ms;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --bg-2:#101A2C;
  --glass:rgba(18,28,46,.55);
  --glass-strong:rgba(22,34,54,.78);
  --line:rgba(120,200,255,.14);
  --line-hot:rgba(22,224,200,.38);
  --brand:#16E0C8;
  --brand-ink:#04231F;
  --brand-2:#7A5CFF;
  --accent:#FF7A45;
  --accent-ink:#2A0E05;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6E819C;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:26px;
  --r-pill:999px;
  --sh-1:0 6px 20px -10px rgba(0,0,0,.6);
  --sh-2:0 18px 44px -22px rgba(0,0,0,.75);
  --glow-brand:0 0 0 1px rgba(22,224,200,.35),0 10px 34px -10px rgba(22,224,200,.5);
  --glow-accent:0 0 0 1px rgba(255,122,69,.4),0 10px 30px -10px rgba(255,122,69,.55);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto 0;
  height:720px;
  background:radial-gradient(60% 100% at 22% 0%,rgba(22,224,200,.16),rgba(22,224,200,0) 70%),
             radial-gradient(46% 80% at 88% 6%,rgba(122,92,255,.13),rgba(122,92,255,0) 72%);
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(120,200,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,200,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
a{color:inherit;text-decoration:none;transition:color .16s ease,background .16s ease,border-color .16s ease;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
@media (min-width:1440px){.container{max-width:1320px;}}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  height:64px;
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .18s ease,background .18s ease,border-color .18s ease;
}
.site-header.is-scrolled{
  height:52px;
  background:var(--glass-strong);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-hot);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:26px;
  width:100%;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,rgba(22,224,200,.9),rgba(122,92,255,.85));
  color:#04231F;
  font-size:16px;
  box-shadow:var(--glow-brand);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-top{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--brand);font-weight:600;}
.brand-bottom{font-size:15px;font-weight:700;color:var(--text-1);}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-link{
  position:relative;
  padding:8px 12px;
  border-radius:var(--r-sm);
  font-size:14.5px;
  color:var(--text-2);
  font-weight:500;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(22,224,200,.06);}
.nav-link.is-active{color:var(--text-1);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(22,224,200,.7);
}
.nav-side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.search-box i{color:var(--text-3);font-size:13px;}
.search-box input{
  border:0;background:transparent;outline:none;
  color:var(--text-1);font-size:14px;width:150px;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 3px rgba(22,224,200,.12);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:var(--r-sm);
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-1);
  cursor:pointer;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-md);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .14s ease-out,background .14s ease-out,box-shadow .14s ease-out,color .14s ease-out;
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-main{background:var(--accent);color:var(--accent-ink);box-shadow:var(--glow-accent);}
.btn-main:hover{background:#ff8b5c;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,122,69,.55),0 16px 38px -12px rgba(255,122,69,.7);}
.btn-brand{background:transparent;color:var(--brand);border-color:var(--line-hot);}
.btn-brand:hover{background:rgba(22,224,200,.08);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line);}
.btn-ghost:hover{background:rgba(120,200,255,.06);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-lg{height:50px;padding:0 26px;font-size:16px;}

/* ============ 面包屑 & Hero ============ */
.hero-cat{
  position:relative;
  padding:calc(64px + 56px) 0 72px;
  background-image:linear-gradient(180deg,rgba(7,11,20,.62) 0%,rgba(7,11,20,.86) 58%,var(--bg-0) 100%),
                   url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-cat::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(70% 90% at 12% 20%,rgba(22,224,200,.14),transparent 68%);
  pointer-events:none;
}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:22px;
}
.crumb a:hover{color:var(--text-1);}
.crumb span.sep{opacity:.55;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(22,224,200,.1);
  border:1px solid var(--line-hot);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.hero-cat h1{
  font-size:clamp(28px,4.2vw,50px);
  line-height:1.15;
  max-width:15em;
  margin-bottom:16px;
}
.hero-cat h1 em{font-style:normal;color:var(--brand);}
.hero-sub{
  color:var(--text-2);
  font-size:17px;
  max-width:44em;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.stat-row{
  display:flex;flex-wrap:wrap;gap:14px 44px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat{min-width:118px;}
.stat b{
  display:block;
  font-size:26px;
  font-weight:700;
  color:var(--text-1);
  font-variant-numeric:tabular-nums;
  line-height:1.3;
}
.stat span{font-size:13px;color:var(--text-3);}

/* ============ 筛选 chips ============ */
.chip-row{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:28px 0 0;
}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  font-size:14px;
  font-weight:500;
}
.chip:hover{color:var(--text-1);border-color:var(--line-hot);}
.chip.is-on{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);font-weight:600;}

/* ============ 主体分栏 ============ */
.main-sec{padding:72px 0 56px;}
.split{
  display:grid;
  grid-template-columns:270px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.side-toc{
  position:sticky;
  top:88px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
}
.side-toc::before{
  content:"";
  position:absolute;
  top:0;left:14px;right:14px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,200,.55),transparent);
}
.side-toc{overflow:hidden;}
.toc-title{
  font-size:13px;
  letter-spacing:.16em;
  color:var(--text-3);
  text-transform:uppercase;
  margin-bottom:14px;
  font-weight:600;
}
.toc-link{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--r-sm);
  font-size:14.5px;
  color:var(--text-2);
  border-left:2px solid transparent;
}
.toc-link i{font-size:11px;color:var(--text-3);}
.toc-link:hover{color:var(--text-1);background:rgba(22,224,200,.06);}
.toc-link.is-cur{color:var(--brand);background:rgba(22,224,200,.08);border-left-color:var(--brand);}
.toc-link.is-cur i{color:var(--brand);}
.toc-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
}
.toc-cta{
  margin-top:16px;
  width:100%;
}

/* 清单 */
.list-main{min-width:0;}
.list-group{margin-bottom:48px;}
.group-head{
  display:flex;align-items:center;gap:14px;
  margin-bottom:20px;
}
.group-head h2{font-size:clamp(22px,2.6vw,30px);}
.group-head .g-line{flex:1;height:1px;background:var(--line);}
.num-list{
  border-top:1px solid var(--line);
}
.num-item{
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:20px;
  padding:24px 16px 24px 12px;
  border-bottom:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:background .18s ease,transform .18s ease;
}
.num-item:hover{background:rgba(120,200,255,.05);transform:translateX(4px);}
.num-index{
  font-size:40px;
  font-weight:700;
  line-height:1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(160deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.num-body h3{font-size:20px;margin-bottom:8px;}
.num-body p{color:var(--text-2);font-size:15.5px;margin-bottom:12px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 11px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  background:rgba(22,224,200,.1);
  color:var(--brand);
  border:1px solid rgba(22,224,200,.22);
}
.tag--warm{background:rgba(255,122,69,.1);color:var(--accent);border-color:rgba(255,122,69,.28);}

/* 场景卡 */
.scene-sec{padding:56px 0;}
.sec-head{margin-bottom:28px;}
.sec-head h2{font-size:clamp(22px,2.6vw,34px);margin-bottom:10px;}
.sec-head p{color:var(--text-2);font-size:15.5px;max-width:60em;}
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.scene-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-hot);box-shadow:var(--sh-2);}
.scene-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.scene-body{padding:20px;}
.scene-body h3{font-size:18px;margin-bottom:8px;}
.scene-body p{font-size:14.5px;color:var(--text-2);}
.scene-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.scene-meta a{color:var(--brand);font-weight:600;}
.scene-meta a:hover{color:var(--accent);}

/* 流程 */
.flow-sec{padding:56px 0;}
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.flow-step{
  padding:24px 22px;
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(22,224,200,.06),rgba(22,224,200,0) 60%),var(--bg-1);
  border:1px solid var(--line);
}
.flow-step b{
  display:block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14.5px;color:var(--text-2);}

/* 口碑 */
.voice-sec{padding:56px 0;}
.voice-track{
  display:flex;
  gap:18px;
  overflow-x:auto;
  padding:4px 4px 18px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.voice-track::-webkit-scrollbar{height:6px;}
.voice-track::-webkit-scrollbar-thumb{background:rgba(120,200,255,.18);border-radius:99px;}
.voice-card{
  position:relative;
  flex:0 0 320px;
  scroll-snap-align:start;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  backdrop-filter:blur(14px);
}
.voice-card::before{
  content:"";
  position:absolute;
  top:-7px;left:28px;
  width:14px;height:14px;
  background:var(--glass-strong);
  border-left:1px solid var(--line);
  border-top:1px solid var(--line);
  transform:rotate(45deg);
}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(22,224,200,.85),rgba(122,92,255,.85));
  color:#04231F;font-weight:700;font-size:15px;
  flex:0 0 auto;
}
.voice-who b{display:block;font-size:14.5px;}
.voice-who span{font-size:12.5px;color:var(--text-3);}
.stars{color:var(--accent);font-size:12px;letter-spacing:2px;margin-bottom:8px;}
.voice-card p{font-size:14.5px;color:var(--text-2);}

/* CTA 带 */
.cta-band{
  margin:56px 0 80px;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  overflow:hidden;
  background-image:linear-gradient(100deg,rgba(7,11,20,.92) 0%,rgba(7,11,20,.72) 55%,rgba(7,11,20,.88) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:40px 38px;
}
.cta-inner h2{font-size:clamp(20px,2.2vw,28px);margin-bottom:8px;}
.cta-inner p{color:var(--text-2);font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.4),var(--bg-1));
  padding:64px 0 26px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{color:var(--text-2);font-size:14.5px;max-width:34em;}
.footer-col h4{
  font-size:14px;
  letter-spacing:.12em;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--text-2);font-size:14.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{
  display:flex;gap:10px;
  color:var(--text-2);
  font-size:14px;
  align-items:flex-start;
}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:12px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  color:var(--text-3);
  font-size:13.5px;
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-links a{color:var(--text-3);}
.footer-links a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .split{grid-template-columns:230px minmax(0,1fr);gap:28px;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;
    top:56px;left:0;right:0;bottom:0;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:22px 20px 40px;
    background:var(--glass-strong);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--line);
    transform:translateY(-10px);
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease,transform .18s ease;
    overflow-y:auto;
  }
  .nav-links.is-open{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{height:48px;display:flex;align-items:center;font-size:17px;padding:0 14px;}
  .nav-link.is-active::after{left:0;right:auto;width:2px;top:10px;bottom:10px;height:auto;bottom:10px;}
  .nav-toggle{display:inline-flex;}
  .site-header{height:56px;}
  .site-header.is-scrolled{height:56px;}
  .split{grid-template-columns:minmax(0,1fr);}
  .side-toc{position:static;}
  .hero-cat{padding:calc(56px + 40px) 0 56px;}
  .main-sec{padding:56px 0 40px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .search-box{display:none;}
  .scene-grid{grid-template-columns:minmax(0,1fr);}
  .flow{grid-template-columns:minmax(0,1fr);}
  .num-item{grid-template-columns:46px minmax(0,1fr);gap:14px;padding:20px 8px 20px 4px;}
  .num-index{font-size:30px;}
  .voice-card{flex:0 0 82vw;}
  .stat-row{gap:18px 28px;}
  .stat b{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .brand-bottom{font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg-0:#070B14;--bg-1:#0B1220;--bg-2:#101A2C;
  --glass:rgba(18,28,46,.55);--glass-strong:rgba(22,34,54,.78);
  --line:rgba(120,200,255,.14);--line-hot:rgba(22,224,200,.38);
  --brand:#16E0C8;--brand-ink:#04231F;--brand-2:#7A5CFF;
  --accent:#FF7A45;--accent-ink:#2A0E05;
  --text-1:#EAF2FF;--text-2:#A9BBD4;--text-3:#6E819C;
  --r-sm:10px;--r-md:14px;--r-lg:18px;--r-xl:26px;--r-pill:999px;
  --sh-1:0 6px 20px -10px rgba(0,0,0,.6);
  --sh-2:0 18px 44px -22px rgba(0,0,0,.75);
  --glow-brand:0 0 0 1px rgba(22,224,200,.35),0 10px 34px -10px rgba(22,224,200,.5);
  --glow-accent:0 0 0 1px rgba(255,122,69,.4),0 10px 30px -10px rgba(255,122,69,.55);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-cn);background-color:var(--bg-0);color:var(--text-1);
  font-size:16px;line-height:1.75;overflow-x:hidden;
  background-image:
    radial-gradient(720px 640px at 10% -10%,rgba(22,224,200,.15),transparent 62%),
    radial-gradient(620px 560px at 94% 2%,rgba(122,92,255,.13),transparent 60%),
    linear-gradient(rgba(120,200,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,200,255,.04) 1px,transparent 1px);
  background-size:auto,auto,58px 58px,58px 58px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px}
p{margin:0}
::selection{background:rgba(22,224,200,.28)}
.container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:24px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ===== 通用组件 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-md);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .14s ease-out,box-shadow .14s ease-out,background .14s ease-out,border-color .14s ease-out,color .14s ease-out}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn-main{background:var(--accent);color:var(--accent-ink);box-shadow:var(--glow-accent)}
.btn-main:hover{transform:translateY(-2px);filter:brightness(1.06);color:var(--accent-ink);
  box-shadow:0 0 0 1px rgba(255,122,69,.5),0 16px 40px -12px rgba(255,122,69,.7)}
.btn-sub{background:transparent;color:var(--brand);border-color:rgba(22,224,200,.5)}
.btn-sub:hover{background:rgba(22,224,200,.08);color:var(--brand);transform:translateY(-2px);box-shadow:var(--glow-brand)}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--line-hot);transform:translateY(-2px);color:var(--text-1)}

.chip{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;border:1px solid var(--line);color:var(--text-2);background:rgba(18,28,46,.4)}
.chip-brand{background:rgba(22,224,200,.1);border-color:rgba(22,224,200,.28);color:var(--brand)}
.chip-accent{background:rgba(255,122,69,.1);border-color:rgba(255,122,69,.32);color:#FFB394}
.mono{font-variant-numeric:tabular-nums}

.section{padding:96px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:15px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(22,224,200,.8)}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--sh-1);position:relative}
.glass::before{content:"";position:absolute;inset:0 0 auto 0;height:1px;border-radius:var(--r-lg) var(--r-lg) 0 0;
  background:linear-gradient(90deg,transparent,rgba(22,224,200,.5),transparent)}

/* ===== 导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1030;height:64px;background:transparent;
  border-bottom:1px solid transparent;
  transition:height .18s ease,background .18s ease,border-color .18s ease,backdrop-filter .18s ease}
.site-header.is-scrolled{height:52px;background:var(--glass-strong);backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);border-bottom-color:rgba(22,224,200,.35)}
.nav-wrap{display:flex;align-items:center;height:100%;gap:26px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));color:#04121A;font-size:16px;
  box-shadow:0 8px 24px -10px rgba(22,224,200,.85)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-top{font-size:15px;font-weight:700;letter-spacing:.06em;color:var(--text-1)}
.brand-bottom{font-size:11px;letter-spacing:.22em;color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:8px 12px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);
  transition:color .18s ease,background .18s ease;white-space:nowrap}
.nav-link:hover{color:var(--text-1);background:rgba(22,224,200,.06)}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-4px;height:2px;
  border-radius:2px;background:var(--brand);box-shadow:0 0 12px rgba(22,224,200,.75)}
.nav-side{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);color:var(--text-3);transition:border-color .2s,box-shadow .2s}
.search-box input{width:148px;background:none;border:0;outline:none;color:var(--text-1);font-size:13px;font-family:inherit}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 3px rgba(22,224,200,.12)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);color:var(--text-1);font-size:16px}

/* ===== 移动抽屉 ===== */
.nav-drawer{position:fixed;inset:0;z-index:1060;background:rgba(7,11,20,.9);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  transform:translateY(-102%);transition:transform .3s ease;padding:18px 20px 32px;display:flex;flex-direction:column}
.nav-drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;
  border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:transparent;
  color:var(--text-1);font-size:18px}
.drawer-links{display:flex;flex-direction:column;margin-top:18px}
.drawer-links a{padding:14px 4px;font-size:18px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid rgba(120,200,255,.08)}
.drawer-links a.is-active{color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:24px}

/* ===== 内页 Hero ===== */
.page-hero{position:relative;padding:128px 0 72px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.34}
.page-hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,11,20,.86),rgba(7,11,20,.96))}
.breadcrumb-nav{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:26px}
.breadcrumb-nav a{color:var(--text-3);transition:color .18s}
.breadcrumb-nav a:hover{color:var(--text-1)}
.breadcrumb-nav .sep{color:rgba(120,200,255,.3)}
.breadcrumb-nav .is-current{color:var(--text-2)}
.hero-split{display:grid;grid-template-columns:1.35fr .9fr;gap:48px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.28);color:var(--brand);
  font-size:13px;font-weight:500;margin-bottom:20px}
.page-hero h1{font-size:clamp(28px,4.2vw,52px);line-height:1.15;margin-bottom:18px;letter-spacing:.4px}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{color:var(--text-2);font-size:16px;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-card{padding:24px;border-radius:var(--r-xl)}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.hero-card-head .mono{font-size:13px;color:var(--text-3)}
.spec-list{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.spec-list li{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;
  border-bottom:1px solid rgba(120,200,255,.09);font-size:14px}
.spec-list li:last-child{border-bottom:0}
.spec-list span{color:var(--text-3)}
.spec-list strong{font-weight:600;color:var(--text-1);font-size:13.5px;text-align:right}

/* ===== 版本对照 ===== */
.version-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.version-card{padding:24px;border-radius:var(--r-lg);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.version-card:hover{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:var(--sh-2)}
.version-icon{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;
  background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.24);color:var(--brand);font-size:18px;margin-bottom:16px}
.version-card h3{font-size:17px;margin-bottom:8px}
.version-card p{font-size:14px;color:var(--text-2);margin-bottom:14px}
.version-points{display:flex;flex-direction:column;gap:8px}
.version-points li{display:flex;gap:8px;font-size:13px;color:var(--text-3);line-height:1.6}
.version-points li i{color:var(--brand);font-size:11px;margin-top:6px}

/* ===== 图墙 ===== */
.wall{columns:4;column-gap:18px}
.wall-item{break-inside:avoid;margin-bottom:18px}
.wall-card{position:relative;display:block;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--bg-2);box-shadow:var(--sh-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.wall-card:hover,.wall-card:focus-visible{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:var(--sh-2)}
.wall-card:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.ratio-tall{aspect-ratio:9/16}
.ratio-mid{aspect-ratio:3/4}
.wall-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.wall-card:hover img{transform:scale(1.05)}
.wall-badge{position:absolute;top:10px;left:10px;z-index:2;height:26px;padding:0 10px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;font-size:12px;background:rgba(10,18,32,.72);
  border:1px solid rgba(22,224,200,.34);color:var(--brand);backdrop-filter:blur(8px)}
.wall-dur{position:absolute;top:10px;right:10px;z-index:2;height:26px;padding:0 10px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;font-size:12px;font-variant-numeric:tabular-nums;
  background:rgba(10,18,32,.72);border:1px solid rgba(255,122,69,.34);color:#FFB394;backdrop-filter:blur(8px)}
.wall-info{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:14px;
  background:linear-gradient(180deg,rgba(7,11,20,0),rgba(7,11,20,.9) 58%);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transform:translateY(14px);opacity:0;transition:transform .28s ease,opacity .28s ease}
.wall-card:hover .wall-info,.wall-card:focus-visible .wall-info{transform:translateY(0);opacity:1}
.wall-title{font-size:14px;font-weight:600;line-height:1.45;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wall-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3)}
.wall-meta .tag{color:var(--brand)}
@media (hover:none){.wall-info{transform:translateY(0);opacity:1}}

/* ===== 安装流程 ===== */
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.step-card{padding:26px 22px;border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(16,26,44,.5);
  transition:border-color .2s ease,transform .2s ease,background .2s ease}
.step-card:hover{border-color:var(--line-hot);transform:translateY(-3px);background:var(--glass)}
.step-no{font-size:38px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;margin-bottom:14px;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.step-card h3{font-size:16px;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-2)}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{border-radius:var(--r-md);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);overflow:hidden;transition:border-color .2s ease}
.faq-item.is-open{border-color:var(--line-hot)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;
  background:none;border:0;color:var(--text-1);text-align:left;font-size:16px;font-weight:600;cursor:pointer}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq-q i{flex:0 0 auto;font-size:13px;color:var(--brand);transition:transform .28s ease}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--text-2)}

/* ===== CTA 带 ===== */
.cta-band{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:34px;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat}
.cta-band::before{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,11,20,.95),rgba(7,11,20,.7))}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(20px,2.4vw,30px);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:rgba(9,14,24,.75);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-about{font-size:14px;color:var(--text-3);line-height:1.8;max-width:340px}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:var(--text-1);margin-bottom:18px;text-transform:uppercase}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .18s}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--text-3);line-height:1.7}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:12px}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(120,200,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3)}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{color:var(--text-3);transition:color .18s}
.footer-links a:hover{color:var(--brand)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .wall{columns:3}
  .version-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .search-box{display:none}
  .section{padding:72px 0}
  .hero-split{grid-template-columns:1fr;gap:32px}
  .page-hero{padding:112px 0 56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
}
@media (max-width:767px){
  .container{padding-inline:16px}
  .wall{columns:2;column-gap:12px}
  .wall-item{margin-bottom:12px}
  .version-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .glass{backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
  .faq-q{font-size:15px;padding:16px}
  .faq-a p{padding:0 16px 16px}
}
@media (max-width:520px){
  .brand-bottom{letter-spacing:.14em}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --bg-0:#070B14; --bg-1:#0B1220; --bg-2:#101A2C;
  --glass:rgba(18,28,46,.55); --glass-strong:rgba(22,34,54,.78);
  --line:rgba(120,200,255,.14); --line-hot:rgba(22,224,200,.38);
  --brand:#16E0C8; --brand-ink:#04231F; --brand-2:#7A5CFF;
  --accent:#FF7A45; --accent-ink:#2A0E05;
  --text-1:#EAF2FF; --text-2:#A9BBD4; --text-3:#6E819C;
  --r-sm:10px; --r-md:14px; --r-lg:18px; --r-xl:26px; --r-pill:999px;
  --sh-1:0 6px 20px -10px rgba(0,0,0,.6);
  --sh-2:0 18px 44px -22px rgba(0,0,0,.75);
  --glow-brand:0 0 0 1px rgba(22,224,200,.35), 0 10px 34px -10px rgba(22,224,200,.5);
  --glow-accent:0 0 0 1px rgba(255,122,69,.4), 0 10px 30px -10px rgba(255,122,69,.55);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --gap-block:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;font-family:var(--font-cn);font-size:16px;line-height:1.75;
  color:var(--text-1);background:var(--bg-0);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(720px 420px at 16% -6%, rgba(22,224,200,.16), transparent 62%),
    radial-gradient(620px 380px at 90% 2%, rgba(122,92,255,.13), transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(120,200,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,200,255,.045) 1px, transparent 1px);
  background-size:52px 52px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px}
h1{font-size:clamp(28px,4.2vw,50px);line-height:1.15}
h2{font-size:clamp(22px,2.6vw,34px)}
h3{font-size:20px;line-height:1.4}
h4{font-size:15px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(22,224,200,.3);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}
.section{padding:var(--gap-block) 0;position:relative;z-index:1}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:28px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7}
.section-head p{color:var(--text-2);margin-top:12px;font-size:16px}
.muted{color:var(--text-2)}
.tiny{font-size:13px;color:var(--text-3)}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg, rgba(7,11,20,.86), rgba(7,11,20,.42));
  border-bottom:1px solid transparent;
  transition:height .18s ease,background .18s ease,border-color .18s ease;
}
.site-header.is-scrolled{
  background:var(--glass-strong);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-hot);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:64px;transition:height .18s ease}
.site-header.is-scrolled .nav-wrap{height:52px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--brand),var(--brand-2));
  color:#04191A;font-size:16px;box-shadow:var(--glow-brand);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-top{font-size:13px;letter-spacing:.22em;color:var(--brand);text-transform:uppercase;font-weight:600}
.brand-bottom{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-sm);
  font-size:15px;color:var(--text-2);transition:color .16s ease,background .16s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(22,224,200,.06)}
.nav-link.is-active{color:var(--text-1);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-side{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.search-box i{color:var(--text-3);font-size:13px}
.search-box input{
  border:0;background:transparent;outline:none;color:var(--text-1);
  font-size:14px;width:150px;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{border-color:var(--line-hot);box-shadow:0 0 0 3px rgba(22,224,200,.12)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--glass);color:var(--text-1);
  font-size:16px;cursor:pointer;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .14s ease-out,background .14s ease-out,box-shadow .14s ease-out,color .14s ease-out,border-color .14s ease-out;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-main{background:var(--accent);color:var(--accent-ink);box-shadow:var(--glow-accent)}
.btn-main:hover{background:#ff8a5b;color:var(--accent-ink);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,122,69,.5),0 14px 38px -12px rgba(255,122,69,.75)}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-brand{border-color:var(--line-hot);color:var(--brand);background:transparent}
.btn-brand:hover{background:rgba(22,224,200,.08);color:var(--brand);transform:translateY(-2px);box-shadow:var(--glow-brand)}
.btn-line{border-color:var(--line);color:var(--text-1);background:var(--glass)}
.btn-line:hover{border-color:var(--line-hot);color:var(--text-1);background:rgba(22,224,200,.06);transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ===== 通用标签 / 徽章 ===== */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  color:var(--brand);background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.22);
}
.badge-num{
  display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:26px;
  padding:0 8px;border-radius:var(--r-pill);font-size:12px;
  color:var(--accent);border:1px solid rgba(255,122,69,.45);background:rgba(255,122,69,.06);
  font-variant-numeric:tabular-nums;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:var(--glass);
  color:var(--text-2);font-size:14px;transition:transform .14s ease-out,color .14s ease-out,border-color .14s ease-out,background .14s ease-out;
}
.chip i{font-size:12px;color:var(--brand)}
.chip:hover{color:var(--text-1);border-color:var(--line-hot);transform:translateY(-2px)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:var(--brand-ink);font-weight:600}
.chip.is-active i{color:var(--brand-ink)}

/* ===== 面包屑 ===== */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding-top:26px}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--text-1)}
.crumbs .sep{color:rgba(110,129,156,.6)}
.crumbs .now{color:var(--text-2)}

/* ===== Hero ===== */
.hero{padding:34px 0 8px;position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center}
.hero h1{margin:16px 0 16px;max-width:15em}
.hero h1 .hl{
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-2);font-size:17px;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:34px;padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-stats .stat b{
  display:block;font-size:24px;font-weight:700;color:var(--text-1);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.hero-stats .stat span{font-size:13px;color:var(--text-3)}

.panel-visual{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  aspect-ratio:9/16;max-height:520px;
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.panel-visual img{width:100%;height:100%;object-fit:cover}
.panel-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(7,11,20,.32) 0%, rgba(7,11,20,.72) 58%, rgba(7,11,20,.92) 100%);
}
.visual-top{position:absolute;top:16px;right:16px;z-index:2}
.visual-body{position:absolute;left:20px;right:20px;bottom:20px;z-index:2}
.visual-body h3{font-size:18px;margin-bottom:6px}
.visual-body p{font-size:13px;color:var(--text-2);line-height:1.6}
.play-ring{
  position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);z-index:2;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  background:rgba(10,18,30,.6);border:1.5px solid var(--brand);color:var(--brand);
  box-shadow:0 0 0 1px rgba(22,224,200,.25),0 0 26px -4px rgba(22,224,200,.55);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(22,224,200,.34),0 0 26px -6px rgba(22,224,200,.5)}50%{box-shadow:0 0 0 14px rgba(22,224,200,0),0 0 26px -6px rgba(22,224,200,.5)}}

/* ===== 快速入口条 ===== */
.quick-bar{
  margin-top:40px;padding:20px 22px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.quick-bar .qb-title{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px}
.quick-bar .qb-title i{color:var(--brand)}

/* ===== 场景卡 ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.glass-card{
  position:relative;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);box-shadow:var(--sh-1);overflow:hidden;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,200,.45),transparent);
}
.glass-card:hover{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:var(--sh-2)}
.scene-card{padding:22px}
.scene-card .icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(22,224,200,.1);border:1px solid rgba(22,224,200,.22);
  color:var(--brand);font-size:17px;margin-bottom:14px;
}
.scene-card h3{font-size:17px;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.scene-card ul{margin-top:12px;display:flex;flex-direction:column;gap:6px}
.scene-card ul li{
  position:relative;padding-left:16px;font-size:13px;color:var(--text-3);
}
.scene-card ul li::before{
  content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:2px;
  background:var(--brand);opacity:.8;
}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:.62fr 1.38fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:96px}
.faq-aside h2{margin-bottom:14px}
.faq-aside p{color:var(--text-2);font-size:15px}
.faq-aside .aside-list{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.faq-aside .aside-list a{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);
  padding:10px 12px;border-radius:var(--r-sm);border:1px solid transparent;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.faq-aside .aside-list a i{color:var(--brand);font-size:12px}
.faq-aside .aside-list a:hover{background:rgba(22,224,200,.06);color:var(--text-1);border-color:var(--line)}

.accordion.faq-acc{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent;display:flex;flex-direction:column;gap:14px}
.faq-acc .accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){border-color:var(--line-hot);box-shadow:var(--sh-2)}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 20px;background:transparent;border:0;
  color:var(--text-1);font-size:16px;font-weight:600;text-align:left;
  box-shadow:none;transition:color .16s ease,background .16s ease;
}
.faq-acc .accordion-button::after{display:none}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:rgba(22,224,200,.05)}
.faq-acc .accordion-button:hover{background:rgba(22,224,200,.05)}
.faq-acc .accordion-button:focus{box-shadow:none}
.faq-ico{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);font-size:11px;
  transition:transform .22s ease,color .16s ease,border-color .16s ease;
}
.faq-acc .accordion-button:not(.collapsed) .faq-ico{transform:rotate(180deg);color:var(--brand);border-color:var(--line-hot)}
.faq-acc .accordion-body{
  padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.85;
}
.faq-acc .accordion-body strong{color:var(--text-1);font-weight:600}
.faq-acc .accordion-body .steps{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.faq-acc .accordion-body .steps li{
  position:relative;padding-left:22px;font-size:14px;color:var(--text-2);
}
.faq-acc .accordion-body .steps li::before{
  content:attr(data-i);position:absolute;left:0;top:2px;
  font-size:12px;color:var(--brand);font-variant-numeric:tabular-nums;font-weight:600;
}

/* ===== 资讯卡 ===== */
.news-card{display:flex;flex-direction:column;height:100%}
.news-card .cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.news-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .cover img{transform:scale(1.04)}
.news-card .cover .mask{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.05),rgba(7,11,20,.55));
}
.news-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card h3{font-size:17px;line-height:1.45}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.news-card .foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);
}
.news-card .foot .read{display:inline-flex;align-items:center;gap:6px;color:var(--brand)}
.news-card .foot .read i{transition:transform .16s ease}
.news-card:hover .foot .read i{transform:translateX(3px)}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.cta-band .bg{position:absolute;inset:0}
.cta-band .bg img{width:100%;height:100%;object-fit:cover}
.cta-band .bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,11,20,.94) 8%,rgba(7,11,20,.72) 62%,rgba(16,26,44,.6) 100%);
}
.cta-inner{
  position:relative;z-index:2;padding:44px 42px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(21px,2.3vw,30px);margin-bottom:10px}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:44em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;z-index:1;margin-top:24px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(7,11,20,.96));
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-about{font-size:14px;color:var(--text-2);line-height:1.8;max-width:34em}
.footer-col h4{
  font-size:14px;letter-spacing:.1em;color:var(--text-1);margin-bottom:16px;
  text-transform:uppercase;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul li a{font-size:14px;color:var(--text-2);transition:color .16s ease}
.footer-col ul li a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:13px;color:var(--text-2);line-height:1.7}
.footer-contact li i{color:var(--brand);margin-top:5px;font-size:12px}
.footer-bottom{
  margin-top:44px;padding-top:20px;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-3);
}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{color:var(--text-3)}
.footer-links a:hover{color:var(--brand)}

/* ===== 移动抽屉 ===== */
@media (max-width:991px){
  :root{--gap-block:72px}
  .nav-links{
    position:fixed;inset:0;z-index:80;flex-direction:column;justify-content:center;align-items:stretch;
    gap:6px;padding:88px 24px 32px;background:rgba(8,13,24,.96);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;
  }
  .nav-links.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-link{font-size:19px;line-height:48px;padding:0 14px;border-radius:var(--r-md)}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:rgba(22,224,200,.1);color:var(--brand)}
  .nav-toggle{display:grid;place-items:center}
  .search-box{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .panel-visual{aspect-ratio:16/10;max-height:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:30px}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{padding:34px 26px}
}
@media (max-width:767px){
  :root{--gap-block:56px}
  .container{padding:0 16px}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .hero-stats{gap:22px}
  .hero-stats .stat b{font-size:20px}
  .news-card .body{padding:16px}
  .cta-band{border-radius:var(--r-lg)}
  .faq-acc .accordion-button{font-size:15px;padding:16px}
}
@media (max-width:520px){
  .grid-4{grid-template-columns:1fr}
  .brand-bottom{font-size:13px}
  .footer-grid{grid-template-columns:1fr}
  .quick-bar{padding:16px}
  .hero-actions .btn{flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}