/* roulang page: index */
:root{
  --bs-primary:#2EE6C8;
  --bs-body-bg:#060A11;
  --bs-body-color:#E8EEF6;
  --bs-border-color:rgba(255,255,255,.12);
  --bs-border-radius:12px;
  --bs-link-color:#2EE6C8;
  --bs-link-hover-color:#7BF3E0;
  --bs-font-sans-serif:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,sans-serif;

  --brand:#2EE6C8;
  --brand-dim:rgba(46,230,200,.14);
  --brand-line:rgba(46,230,200,.35);
  --gold:#F5B84B;
  --gold-dim:rgba(245,184,75,.14);
  --magenta:#FF4D8D;
  --bg-1:#060A11;
  --bg-2:#0A111B;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.12);
  --text:#E8EEF6;
  --text-2:#9BA9BA;
  --text-3:#667788;
  --r-lg:24px;
  --r:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow:0 16px 40px rgba(0,0,0,.38);
  --shadow-hover:0 24px 58px rgba(0,0,0,.52);
  --glow:0 0 0 1px rgba(46,230,200,.45),0 0 24px rgba(46,230,200,.32);
  --glow-strong:0 0 0 1px rgba(46,230,200,.6),0 0 34px rgba(46,230,200,.45);
  --sec-y:108px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(620px 420px at 12% -6%,rgba(46,230,200,.10),transparent 62%),
    radial-gradient(560px 400px at 92% 4%,rgba(245,184,75,.07),transparent 60%),
    radial-gradient(700px 520px at 50% 108%,rgba(46,230,200,.06),transparent 65%);
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:#7BF3E0;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--text);letter-spacing:-.01em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.site-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:var(--sec-y) 0;position:relative;z-index:1;}
.section-tight{padding:76px 0;}
.section-alt{background:linear-gradient(180deg,rgba(10,17,27,0),rgba(10,17,27,.85) 22%,rgba(10,17,27,.85) 78%,rgba(10,17,27,0));}
.lead-text{color:var(--text-2);max-width:660px;font-size:1.03rem;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.8;}
.sec-title{font-size:clamp(1.75rem,3vw,2.4rem);font-weight:700;margin-bottom:14px;}
.sec-sub{color:var(--text-2);max-width:640px;margin-bottom:0;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,10,17,.78);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;gap:18px;height:68px;}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,rgba(46,230,200,.95),rgba(46,230,200,.35));
  display:grid;place-items:center;color:#04140F;font-weight:800;font-size:1rem;
  box-shadow:0 0 0 1px rgba(46,230,200,.4),0 0 22px rgba(46,230,200,.28);
}
.logo-text{font-size:1.08rem;font-weight:800;color:var(--text);letter-spacing:-.01em;white-space:nowrap;}
.logo-text em{font-style:normal;color:var(--brand);}
.brand-row .spacer{flex:1 1 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:8px 12px;min-width:190px;
}
.nav-search i{color:var(--text-3);font-size:.85rem;}
.nav-search input{
  background:transparent;border:0;outline:none;color:var(--text);
  font-size:.9rem;width:100%;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search:focus-within{border-color:var(--brand-line);box-shadow:0 0 0 3px rgba(46,230,200,.12);}
.head-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-btn);
  background:var(--brand);color:#04140F;font-weight:700;font-size:.92rem;
  box-shadow:var(--glow);white-space:nowrap;
}
.head-cta:hover{color:#04140F;background:#57efd6;box-shadow:var(--glow-strong);transform:translateY(-1px);}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  align-items:center;justify-content:center;font-size:1rem;
}
.channel-row{
  border-top:1px solid rgba(255,255,255,.06);
  display:flex;align-items:center;gap:8px;
  height:52px;overflow-x:auto;scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex:0 0 auto;
  padding:7px 16px;border-radius:999px;
  color:var(--text-2);font-size:.94rem;font-weight:500;
  border:1px solid transparent;transition:all .2s ease;
}
.channel-link:hover{color:var(--text);background:var(--glass);border-color:var(--line);}
.channel-link.active{
  color:var(--brand);background:var(--brand-dim);border-color:var(--brand-line);
  box-shadow:0 0 18px rgba(46,230,200,.18);
}
.channel-link.active::after{
  content:"";position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 12px rgba(46,230,200,.8);
}
.offcanvas{background:var(--bg-2);color:var(--text);border-right:1px solid var(--line);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(1.6);}
.m-nav-link{
  display:block;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.07);
  color:var(--text-2);font-size:1rem;
}
.m-nav-link.active{color:var(--brand);}

/* ============ 按钮 ============ */
.btn-glow{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;border-radius:var(--r-btn);border:0;
  background:var(--brand);color:#04140F;font-weight:700;font-size:1rem;
  box-shadow:var(--glow);transition:all .2s ease;cursor:pointer;
}
.btn-glow:hover{background:#5af0d8;color:#04140F;transform:translateY(-2px);box-shadow:var(--glow-strong);}
.btn-glass{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  font-weight:600;font-size:1rem;transition:all .2s ease;cursor:pointer;
}
.btn-glass:hover{border-color:var(--brand-line);background:var(--glass-2);color:var(--text);transform:translateY(-2px);}
.txt-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand);}
.txt-link i{transition:transform .2s ease;}
.txt-link:hover i{transform:translateX(4px);}

/* ============ 玻璃卡 ============ */
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.045));
  border:1px solid var(--line);
  border-radius:var(--r);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.media-frame{
  position:relative;overflow:hidden;border-radius:var(--r);
  border:1px solid var(--line);background:var(--bg-2);
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,17,.05),rgba(6,10,17,.62));
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:.78rem;font-weight:600;
  background:var(--brand-dim);color:var(--brand);border:1px solid rgba(46,230,200,.24);
}
.tag.gold{background:var(--gold-dim);color:var(--gold);border-color:rgba(245,184,75,.28);}
.tag.pink{background:rgba(255,77,141,.13);color:var(--magenta);border-color:rgba(255,77,141,.28);}

/* ============ Hero ============ */
.hero{padding:78px 0 96px;position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.6rem);
  font-weight:800;letter-spacing:-.02em;line-height:1.18;margin-bottom:20px;
}
.hero h1 span{color:var(--brand);}
.hero-sub{font-size:1.08rem;color:var(--text-2);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.trust-bar{display:flex;flex-wrap:wrap;gap:28px;padding-top:24px;border-top:1px solid var(--line);}
.trust-item{min-width:96px;}
.trust-num{font-size:1.5rem;font-weight:800;color:var(--brand);letter-spacing:-.02em;line-height:1.2;}
.trust-label{font-size:.84rem;color:var(--text-3);}
.hero-visual{position:relative;}
.hero-visual .media-frame{height:420px;border-radius:var(--r-lg);}
.hero-visual .media-frame img{height:100%;}
.hero-visual .media-frame:hover img{transform:scale(1.04);}
.hero-float{
  position:absolute;left:-28px;bottom:-28px;width:262px;padding:20px;border-radius:var(--r);
  background:rgba(10,17,27,.82);border:1px solid var(--line);backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.hero-float h4{font-size:.92rem;color:var(--text-2);font-weight:500;margin-bottom:14px;}
.mini-row{display:flex;align-items:center;justify-content:space-between;font-size:.85rem;color:var(--text-2);margin-bottom:9px;}
.mini-row b{color:var(--text);font-weight:600;}
.bar{height:5px;border-radius:4px;background:rgba(255,255,255,.08);overflow:hidden;margin-bottom:13px;}
.bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand),rgba(46,230,200,.4));}
.bar.gold i{background:linear-gradient(90deg,var(--gold),rgba(245,184,75,.35));}

/* ============ 价值主张 ============ */
.value-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.kpi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:30px;}
.kpi{
  padding:22px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  transition:all .2s ease;
}
.kpi:hover{border-color:var(--brand-line);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.kpi b{display:block;font-size:1.7rem;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:-.02em;}
.kpi span{font-size:.86rem;color:var(--text-3);}
.value-list li{
  display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.09);
  color:var(--text-2);font-size:.98rem;
}
.value-list li:last-child{border-bottom:0;}
.value-list i{color:var(--brand);margin-top:6px;font-size:.85rem;}

/* ============ 功能分组 ============ */
.feature-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;}
.feature-grid .stack{display:flex;flex-direction:column;gap:24px;}
.feat-card{
  padding:32px;border-radius:var(--r);
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.04));
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
  transition:all .2s ease;height:100%;
}
.feat-card:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:var(--shadow-hover);}
.feat-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-dim);border:1px solid rgba(46,230,200,.28);
  color:var(--brand);font-size:1.1rem;margin-bottom:18px;
}
.feat-card h3{font-size:1.32rem;font-weight:600;margin-bottom:10px;}
.feat-card p{color:var(--text-2);font-size:.97rem;margin-bottom:16px;}
.point-list li{display:flex;gap:10px;color:var(--text-2);font-size:.92rem;padding:5px 0;}
.point-list i{color:var(--brand);font-size:.75rem;margin-top:7px;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{
  padding:5px 12px;border-radius:999px;font-size:.8rem;color:var(--text-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}

/* ============ 使用场景 ============ */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:44px 0;}
.scene + .scene{border-top:1px solid rgba(255,255,255,.07);}
.scene.reverse .scene-media{order:2;}
.scene-media .media-frame{height:330px;border-radius:var(--r-lg);}
.scene-media .media-frame:hover img{transform:scale(1.05);}
.scene h3{font-size:1.5rem;font-weight:600;margin-bottom:12px;}
.scene p{color:var(--text-2);}
.scene-list li{
  display:flex;gap:12px;padding:10px 0;color:var(--text-2);font-size:.96rem;
}
.scene-list i{color:var(--gold);margin-top:7px;font-size:.7rem;}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:24px;}
.case-main{
  border-radius:var(--r);overflow:hidden;border:1px solid var(--line);
  background:var(--glass);box-shadow:var(--shadow);position:relative;
  transition:all .2s ease;
}
.case-main:hover{border-color:var(--brand-line);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.case-main .case-cover{height:250px;overflow:hidden;position:relative;}
.case-main .case-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case-main:hover .case-cover img{transform:scale(1.05);}
.case-main .case-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,17,.1),rgba(6,10,17,.85));
}
.case-body{padding:28px;}
.case-body h3{font-size:1.4rem;font-weight:600;margin-bottom:12px;}
.case-body p{color:var(--text-2);font-size:.97rem;}
.case-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line);}
.case-stats b{display:block;font-size:1.5rem;font-weight:800;color:var(--gold);letter-spacing:-.02em;}
.case-stats span{font-size:.83rem;color:var(--text-3);}
.case-side{display:flex;flex-direction:column;gap:24px;}
.case-mini{
  padding:24px;border-radius:var(--r-sm);background:var(--glass);border:1px solid var(--line);
  transition:all .2s ease;flex:1;
}
.case-mini:hover{border-color:var(--brand-line);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.case-mini .tag{margin-bottom:12px;}
.case-mini h4{font-size:1.05rem;font-weight:600;margin-bottom:8px;}
.case-mini p{font-size:.9rem;color:var(--text-2);margin:0;}
.case-mini b{color:var(--brand);font-weight:700;}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  padding:32px;border-radius:var(--r);display:flex;flex-direction:column;
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.03));
  border:1px solid var(--line);box-shadow:var(--shadow);
  transition:all .2s ease;
}
.price-card:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:var(--shadow-hover);}
.price-card.recommend{
  background:linear-gradient(165deg,rgba(46,230,200,.12),rgba(255,255,255,.04));
  border-color:rgba(46,230,200,.45);
  box-shadow:0 0 0 1px rgba(46,230,200,.35),0 24px 60px rgba(0,0,0,.5),0 0 40px rgba(46,230,200,.14);
  transform:translateY(-14px);
}
.price-card.recommend:hover{transform:translateY(-18px);}
.price-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.price-card h3{font-size:1.2rem;font-weight:600;margin:0;}
.price-for{font-size:.86rem;color:var(--text-3);margin-bottom:20px;}
.price-num{font-size:2.1rem;font-weight:800;color:var(--text);letter-spacing:-.02em;line-height:1.15;}
.price-num small{font-size:.9rem;font-weight:500;color:var(--text-3);margin-left:4px;}
.price-note{font-size:.84rem;color:var(--text-3);margin:8px 0 22px;}
.price-list{flex:1;border-top:1px solid var(--line);padding-top:20px;margin-bottom:26px;}
.price-list li{display:flex;gap:10px;padding:7px 0;font-size:.93rem;color:var(--text-2);}
.price-list i{color:var(--brand);margin-top:7px;font-size:.72rem;}
.price-card.recommend .price-list i{color:var(--gold);}

/* ============ 最新信息 ============ */
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.info-card{
  border-radius:var(--r);overflow:hidden;background:var(--glass);
  border:1px solid var(--line);box-shadow:var(--shadow);
  display:flex;flex-direction:column;transition:all .2s ease;height:100%;
}
.info-card:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:var(--shadow-hover);}
.info-cover{height:158px;overflow:hidden;position:relative;background:var(--bg-2);}
.info-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.info-card:hover .info-cover img{transform:scale(1.06);}
.info-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.info-body h3{
  font-size:1.05rem;font-weight:600;line-height:1.5;margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-body h3 a{color:var(--text);}
.info-body h3 a:hover{color:var(--brand);}
.info-body p{
  font-size:.9rem;color:var(--text-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.info-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:.8rem;color:var(--text-3);border-top:1px solid rgba(255,255,255,.07);padding-top:13px;
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border-radius:var(--r);
  background:var(--glass);border:1px dashed rgba(255,255,255,.16);
}
.empty-state i{font-size:1.7rem;color:var(--text-3);margin-bottom:14px;display:block;}
.empty-state p{color:var(--text-2);margin-bottom:12px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--r-sm);background:var(--glass);border:1px solid var(--line);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;position:relative;
}
.faq-item:has(.collapse.show){border-color:var(--brand-line);box-shadow:0 0 24px rgba(46,230,200,.1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;color:var(--text);
  font-size:1.02rem;font-weight:600;text-align:left;cursor:pointer;transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q i{color:var(--text-3);font-size:.85rem;transition:transform .25s ease,color .25s ease;flex:0 0 auto;}
.faq-q[aria-expanded="true"]{color:var(--brand);}
.faq-q[aria-expanded="true"] i{transform:rotate(45deg);color:var(--brand);}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--brand);opacity:0;transition:opacity .25s ease;box-shadow:0 0 14px rgba(46,230,200,.8);
}
.faq-q[aria-expanded="true"]::before{opacity:1;}
.faq-a{padding:0 24px 22px 24px;color:var(--text-2);font-size:.96rem;line-height:1.8;}

/* ============ CTA ============ */
.cta-banner{
  padding:56px;border-radius:var(--r-lg);text-align:center;
  background:
    radial-gradient(520px 260px at 50% 0%,rgba(46,230,200,.16),transparent 68%),
    linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
  border:1px solid rgba(46,230,200,.24);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
}
.cta-banner h2{font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:700;margin-bottom:14px;}
.cta-banner p{color:var(--text-2);max-width:620px;margin:0 auto 28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,27,.4),rgba(6,10,17,.95));
  padding:72px 0 28px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand p{color:var(--text-2);font-size:.93rem;margin:16px 0 18px;max-width:320px;}
.footer-contact li{display:flex;gap:10px;color:var(--text-2);font-size:.92rem;padding:5px 0;}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:.82rem;}
.footer-col h4{font-size:.96rem;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-col a{display:block;color:var(--text-2);font-size:.92rem;padding:6px 0;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.84rem;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec-y:92px;}
  .hero-grid{gap:40px;}
  .info-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1.2fr;gap:32px;}
}
@media (max-width:991.98px){
  :root{--sec-y:78px;--container:960px;}
  .nav-search{display:none;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:52px;}
  .hero-float{position:static;width:100%;margin-top:18px;}
  .hero-visual .media-frame{height:320px;}
  .value-grid{grid-template-columns:1fr;gap:34px;}
  .feature-grid{grid-template-columns:1fr;}
  .scene{grid-template-columns:1fr;gap:28px;padding:34px 0;}
  .scene.reverse .scene-media{order:0;}
  .case-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;gap:20px;}
  .price-card.recommend{transform:none;}
  .price-card.recommend:hover{transform:translateY(-4px);}
}
@media (max-width:767.98px){
  :root{--sec-y:62px;}
  body{font-size:16px;}
  .site-container{padding:0 18px;}
  .brand-row{height:62px;gap:12px;}
  .logo-text{font-size:.98rem;}
  .head-cta{display:none;}
  .menu-btn{display:inline-flex;}
  .channel-row{height:48px;}
  .channel-link{padding:6px 14px;font-size:.88rem;}
  .hero h1{font-size:clamp(1.85rem,7vw,2.5rem);}
  .hero-visual .media-frame{height:250px;}
  .trust-bar{gap:18px;}
  .kpi-grid{grid-template-columns:1fr 1fr;gap:14px;padding:0;}
  .info-grid{grid-template-columns:1fr;}
  .feat-card{padding:24px;}
  .case-body{padding:22px;}
  .case-stats{gap:22px;}
  .cta-banner{padding:36px 22px;}
  .btn-glow,.btn-glass{width:100%;justify-content:center;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1/-1;}
  .scene-media .media-frame{height:230px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .kpi-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .case-stats{flex-direction:column;gap:14px;}
}

/* roulang page: article */
:root{
  --bg:#060A11;
  --bg-soft:#0A111B;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.12);
  --line-strong:rgba(255,255,255,.2);
  --brand:#2EE6C8;
  --brand-soft:rgba(46,230,200,.12);
  --gold:#F5B84B;
  --magenta:#FF4D8D;
  --text:#E8EEF6;
  --body-text:#D5DEE9;
  --muted:#9BA9BA;
  --weak:#667788;
  --r-lg:24px;
  --r:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow:0 16px 40px rgba(0,0,0,.38);
  --shadow-strong:0 24px 60px rgba(0,0,0,.52);
  --gap-section:clamp(56px,7vw,110px);
  --bs-body-bg:#060A11;
  --bs-body-color:#E8EEF6;
  --bs-primary:#2EE6C8;
  --bs-border-color:rgba(255,255,255,.12);
  --bs-border-radius:18px;
  --bs-link-color:#2EE6C8;
  --bs-link-hover-color:#6ff0da;
  --bs-font-sans-serif:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--bs-font-sans-serif);font-size:16.5px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -12%,rgba(46,230,200,.10),transparent 62%),
    radial-gradient(720px 520px at 92% -4%,rgba(245,184,75,.07),transparent 60%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:#6ff0da}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
button,input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
::selection{background:rgba(46,230,200,.3);color:#04140f}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media (min-width:1400px){.site-container{max-width:1280px}}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,10,17,.86);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;padding-top:8px;padding-bottom:8px}
.logo{display:inline-flex;align-items:center;gap:11px;text-decoration:none}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#2EE6C8,#12a892 70%);
  color:#04140f;font-weight:800;font-size:1.1rem;
  box-shadow:0 0 0 1px rgba(46,230,200,.4),0 10px 26px rgba(46,230,200,.25);
}
.logo-text{font-size:1.06rem;font-weight:800;color:var(--text);letter-spacing:-.01em;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand);margin-left:2px}
.brand-actions{display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;align-items:center;gap:9px;height:40px;width:230px;padding:0 15px;
  border-radius:999px;background:var(--glass);border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box i{color:var(--weak);font-size:.85rem}
.search-box input{flex:1;background:transparent;border:0;outline:none;color:var(--text);font-size:.88rem;min-width:0}
.search-box input::placeholder{color:var(--weak)}
.search-box:focus-within{border-color:rgba(46,230,200,.5);box-shadow:0 0 0 3px rgba(46,230,200,.13);background:rgba(255,255,255,.07)}

.btn-primary-glow{
  display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:var(--r-btn);
  background:var(--brand);color:#04140f;font-weight:700;font-size:.94rem;border:1px solid transparent;
  box-shadow:0 0 0 1px rgba(46,230,200,.45),0 0 24px rgba(46,230,200,.35);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;white-space:nowrap;
}
.btn-primary-glow:hover{background:#57f0d7;color:#04140f;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(46,230,200,.6),0 0 34px rgba(46,230,200,.55)}
.btn-primary-glow:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--line);color:var(--text);font-weight:600;font-size:.94rem;
  transition:border-color .2s ease,background .2s ease,color .2s ease,transform .2s ease;white-space:nowrap;
}
.btn-ghost:hover{border-color:rgba(46,230,200,.55);background:rgba(46,230,200,.08);color:var(--brand);transform:translateY(-2px);text-decoration:none}

.channel-row{
  display:flex;gap:8px;align-items:center;overflow-x:auto;padding:4px 0 14px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{
  flex:0 0 auto;padding:8px 17px;border-radius:999px;font-size:.92rem;font-weight:500;
  color:var(--muted);border:1px solid transparent;white-space:nowrap;
  transition:color .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.channel-link:hover{color:var(--text);background:var(--glass);border-color:var(--line);text-decoration:none}
.channel-link.active{
  color:var(--brand);background:var(--brand-soft);border-color:rgba(46,230,200,.35);
  box-shadow:0 0 18px rgba(46,230,200,.18);
}

/* ============ article hero ============ */
.article-hero{
  position:relative;padding:46px 0 62px;overflow:hidden;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,17,.84) 0%,rgba(6,10,17,.93) 58%,rgba(6,10,17,1) 100%);
}
.article-hero::after{
  content:"";position:absolute;top:-32%;right:-12%;width:62%;height:130%;pointer-events:none;
  background:radial-gradient(circle at 58% 42%,rgba(46,230,200,.2),transparent 62%);
}
.article-hero .site-container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:.86rem;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--weak)}
.crumbs .current{color:var(--text);max-width:min(100%,420px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:clamp(1.9rem,4.4vw,3.15rem);font-weight:800;letter-spacing:-.02em;max-width:900px;margin-bottom:22px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px}
.meta-pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);font-size:.85rem;color:var(--muted);
}
.meta-pill i{color:var(--weak);font-size:.8rem}
.meta-pill.is-brand{color:var(--brand);background:var(--brand-soft);border-color:rgba(46,230,200,.32)}
.meta-pill.is-brand i{color:var(--brand)}

/* ============ article layout ============ */
.article-main{padding:var(--gap-section) 0 calc(var(--gap-section) * .8)}
.section-head{margin-bottom:34px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:600;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.6rem,3vw,2.25rem);font-weight:700;margin-bottom:10px}
.section-head p{color:var(--muted);max-width:640px;margin:0}

.article-body{max-width:780px;font-size:17px;line-height:1.85;color:var(--body-text)}
.article-body > *:first-child{margin-top:0}
.article-body h2{font-size:clamp(1.4rem,2.4vw,1.8rem);font-weight:700;color:var(--text);margin:2em 0 .7em}
.article-body h3{font-size:1.22rem;font-weight:600;color:var(--text);margin:1.7em 0 .6em}
.article-body h4{font-size:1.05rem;font-weight:600;color:var(--text);margin:1.5em 0 .5em}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.45em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--brand)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#6ff0da;text-decoration-thickness:2px}
.article-body strong{color:#fff;font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--brand);
  background:var(--glass);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--muted);font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-sm);margin:1.6em 0;box-shadow:var(--shadow);background:var(--bg-soft)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:.85rem;color:var(--weak);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.95rem;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:rgba(46,230,200,.08);color:var(--text);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body code{
  background:rgba(255,255,255,.07);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:.9em;color:#8ff2df;
}

.article-empty{
  padding:40px 32px;border-radius:var(--r);text-align:left;
  background:linear-gradient(160deg,var(--glass-strong),var(--glass));
  border:1px solid var(--line);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
}
.article-empty h2{font-size:1.5rem;margin-bottom:12px}
.article-empty p{color:var(--muted);max-width:520px}
.article-empty .btn-primary-glow{margin-top:8px}

.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.article-foot .tag-row{display:flex;flex-wrap:wrap;gap:8px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:.76rem;font-weight:600;
  border:1px solid rgba(46,230,200,.28);
}
.badge-hot{background:rgba(255,77,141,.14);color:var(--magenta);border-color:rgba(255,77,141,.34)}
.badge-gold{background:rgba(245,184,75,.14);color:var(--gold);border-color:rgba(245,184,75,.34)}
.back-link{display:inline-flex;align-items:center;gap:9px;font-weight:600;color:var(--text)}
.back-link:hover{color:var(--brand);text-decoration:none}
.back-link i{color:var(--brand);transition:transform .2s ease}
.back-link:hover i{transform:translateX(-3px)}

/* ============ sidebar ============ */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px}
.glass-card{
  padding:24px;border-radius:var(--r);
  background:linear-gradient(160deg,var(--glass-strong),var(--glass));
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--shadow-strong)}
.glass-card h3{font-size:1.05rem;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.glass-card h3 i{color:var(--brand);font-size:.95rem}
.point-list li{
  position:relative;padding-left:20px;margin-bottom:12px;font-size:.92rem;color:var(--muted);line-height:1.7;
}
.point-list li:last-child{margin-bottom:0}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(46,230,200,.6);
}
.link-list li{border-bottom:1px dashed var(--line)}
.link-list li:last-child{border-bottom:0}
.link-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;color:var(--text);font-size:.93rem;font-weight:500;
}
.link-list a i{color:var(--weak);font-size:.78rem;transition:transform .2s ease,color .2s ease}
.link-list a:hover{color:var(--brand);text-decoration:none}
.link-list a:hover i{color:var(--brand);transform:translateX(3px)}
.side-note{font-size:.85rem;color:var(--weak);margin:0}

/* ============ recommend ============ */
.recommend-section{padding:0 0 var(--gap-section)}
.rec-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;padding:0;
  border-radius:var(--r);background:linear-gradient(160deg,var(--glass-strong),var(--glass));
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--shadow-strong)}
.rec-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.rec-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,17,.05),rgba(6,10,17,.7))}
.rec-card:hover .rec-thumb img{transform:scale(1.06)}
.rec-badge{position:absolute;top:14px;left:14px;z-index:2}
.rec-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:1.12rem;font-weight:600;margin:0;line-height:1.5}
.rec-body h3 a{color:var(--text)}
.rec-body h3 a:hover{color:var(--brand);text-decoration:none}
.rec-body p{font-size:.92rem;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:.82rem;color:var(--weak);padding-top:6px}
.rec-foot .more{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.rec-foot .more i{transition:transform .2s ease}
.rec-card:hover .rec-foot .more i{transform:translateX(3px)}

/* ============ subscribe ============ */
.subscribe-band{
  display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:center;
  padding:clamp(28px,4vw,46px);border-radius:var(--r-lg);
  background:linear-gradient(140deg,rgba(46,230,200,.12),rgba(255,255,255,.05) 46%,rgba(10,17,27,.92));
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.1);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.subscribe-band h2{font-size:clamp(1.45rem,2.6vw,2rem);margin-bottom:10px}
.subscribe-band p{color:var(--muted);margin:0;max-width:520px}
.subscribe-form{display:flex;gap:12px}
.field{
  flex:1;min-width:0;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-btn);padding:13px 16px;color:var(--text);font-size:.95rem;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field::placeholder{color:var(--weak)}
.field:focus{outline:none;border-color:rgba(46,230,200,.55);box-shadow:0 0 0 4px rgba(46,230,200,.14);background:rgba(255,255,255,.07)}
.form-msg{font-size:.86rem;color:var(--brand);min-height:20px;margin:12px 0 0}
.form-hint{font-size:.82rem;color:var(--weak);margin:6px 0 0}

/* ============ CTA ============ */
.cta-section{padding:0 0 var(--gap-section)}
.cta-band{
  position:relative;overflow:hidden;text-align:center;border-radius:var(--r-lg);
  padding:clamp(34px,5vw,60px) clamp(24px,4vw,56px);
  background:linear-gradient(140deg,rgba(46,230,200,.15),rgba(255,255,255,.05) 48%,rgba(10,17,27,.94));
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.1);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.cta-band::after{
  content:"";position:absolute;top:-50%;left:50%;transform:translateX(-50%);
  width:520px;height:320px;pointer-events:none;
  background:radial-gradient(circle,rgba(46,230,200,.22),transparent 66%);
}
.cta-band h2{font-size:clamp(1.6rem,3.2vw,2.4rem);margin-bottom:14px;position:relative;z-index:1}
.cta-band p{color:var(--muted);max-width:620px;margin:0 auto 28px;position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;position:relative;z-index:1}

/* ============ footer ============ */
.site-footer{
  position:relative;z-index:1;background:var(--bg-soft);
  border-top:1px solid var(--line);padding:66px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;padding-bottom:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:.92rem;max-width:340px;margin-bottom:18px}
.footer-contact li{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.88rem;margin-bottom:9px}
.footer-contact i{color:var(--brand);font-size:.85rem;width:16px}
.footer-col h4{font-size:.98rem;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col a{display:block;color:var(--muted);font-size:.9rem;padding:6px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--brand);transform:translateX(3px);text-decoration:none}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:22px;border-top:1px solid var(--line);font-size:.84rem;color:var(--weak);
}
.footer-bottom a{color:var(--weak)}
.footer-bottom a:hover{color:var(--brand)}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .search-box{width:190px}
}
@media (max-width:991.98px){
  .side-stack{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .subscribe-band{grid-template-columns:1fr;gap:24px}
  .search-box{display:none}
  .article-main{padding-top:clamp(44px,6vw,72px)}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .brand-row{min-height:62px}
  .logo-text{font-size:1rem}
  .btn-ghost{display:none}
  .article-hero{padding:32px 0 44px}
  .article-body{font-size:16px;line-height:1.8}
  .article-body h2{margin-top:1.7em}
  .article-foot{flex-direction:column;align-items:flex-start}
  .cta-actions .btn-primary-glow,.cta-actions .btn-ghost{width:100%;justify-content:center}
  .subscribe-form{flex-direction:column}
}
@media (max-width:575.98px){
  .site-container{padding:0 16px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
  .article-title{font-size:1.72rem}
  .meta-pill{font-size:.8rem;padding:6px 12px}
  .glass-card{padding:20px}
}

/* roulang page: category1 */
:root{
  --bg:#060A11;
  --bg-2:#0A111B;
  --primary:#2EE6C8;
  --primary-soft:rgba(46,230,200,.14);
  --accent:#F5B84B;
  --pink:#FF4D8D;
  --text:#E8EEF6;
  --muted:#9BA9BA;
  --weak:#667788;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.085);
  --line:rgba(255,255,255,.12);
  --line-strong:rgba(46,230,200,.35);
  --r-lg:24px;
  --r:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow:0 16px 40px rgba(0,0,0,.38);
  --shadow-strong:0 22px 54px rgba(0,0,0,.5);
  --bs-primary:#2EE6C8;
  --bs-body-bg:#060A11;
  --bs-body-color:#E8EEF6;
  --bs-border-color:rgba(255,255,255,.12);
  --bs-border-radius:18px;
  --bs-link-color:#2EE6C8;
  --bs-link-hover-color:#7BF3DF;
  --bs-font-sans-serif:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease;}
a:hover{color:#7BF3DF;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.site-container{max-width:1280px;}}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.topbar{
  background:rgba(6,10,17,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:70px;}
.logo{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-weight:800;letter-spacing:-.02em;}
.logo:hover{color:var(--text);}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,#2EE6C8,#159c88);
  color:#04201B;font-weight:900;font-size:1.05rem;
  box-shadow:0 0 0 1px rgba(46,230,200,.45),0 0 22px rgba(46,230,200,.32);
}
.logo-text{font-size:1.06rem;}
.logo-text em{font-style:normal;color:var(--primary);}
.topbar-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:9px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:8px 13px;min-width:210px;
}
.search-box i{color:var(--weak);font-size:.85rem;}
.search-box input{
  border:0;background:transparent;color:var(--text);font-size:.9rem;width:100%;outline:none;
}
.search-box input::placeholder{color:var(--weak);}
.search-box:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(46,230,200,.12);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  padding:9px 16px;font-size:.9rem;color:var(--text);background:var(--glass);
  transition:all .2s ease;
}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--text);background:var(--glass-2);transform:translateY(-1px);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  border:0;border-radius:var(--r-btn);padding:10px 18px;
  background:var(--primary);color:#04201B;font-weight:700;font-size:.9rem;
  box-shadow:0 0 0 1px rgba(46,230,200,.45),0 0 24px rgba(46,230,200,.35);
  transition:all .2s ease;
}
.btn-glow:hover{background:#5AF0D6;color:#04201B;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(46,230,200,.6),0 0 34px rgba(46,230,200,.5);}
.menu-toggle{display:none;background:var(--glass);border:1px solid var(--line);color:var(--text);border-radius:11px;width:40px;height:40px;}

/* ---------- 频道行 ---------- */
.channel-row{
  display:flex;gap:8px;overflow-x:auto;white-space:nowrap;
  padding:10px 24px;
  max-width:1280px;margin:0 auto;
  background:rgba(10,17,27,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  padding:8px 16px;border-radius:999px;font-size:.92rem;color:var(--muted);
  border:1px solid transparent;transition:all .2s ease;
}
.channel-link:hover{color:var(--text);background:var(--glass);border-color:var(--line);}
.channel-link.active{
  color:var(--primary);background:var(--primary-soft);border-color:rgba(46,230,200,.32);
  box-shadow:0 0 18px rgba(46,230,200,.18);
}
.mobile-drawer{display:none;background:rgba(10,17,27,.96);border-bottom:1px solid var(--line);padding:14px 24px;}
.mobile-drawer a{display:block;padding:11px 0;color:var(--muted);border-bottom:1px solid rgba(255,255,255,.06);font-size:.95rem;}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.active{color:var(--primary);}
.mobile-drawer.open{display:block;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(6,10,17,.96) 0%,rgba(6,10,17,.86) 45%,rgba(6,10,17,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:auto -10% -55% 45%;height:520px;
  background:radial-gradient(circle,rgba(46,230,200,.16),transparent 62%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:82px 0 76px;max-width:760px;}
.crumbs{display:flex;align-items:center;gap:9px;font-size:.85rem;color:var(--weak);margin-bottom:20px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs span.sep{color:var(--weak);opacity:.6;}
.page-hero h1{
  font-size:clamp(2.1rem,4.6vw,3.3rem);font-weight:800;letter-spacing:-.02em;margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{color:var(--muted);font-size:1.06rem;max-width:640px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.btn-primary-glow{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--primary);color:#04201B;font-weight:700;
  border-radius:var(--r-btn);padding:13px 26px;font-size:.98rem;
  box-shadow:0 0 0 1px rgba(46,230,200,.45),0 0 24px rgba(46,230,200,.35);
  transition:all .2s ease;
}
.btn-primary-glow:hover{background:#5AF0D6;color:#04201B;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(46,230,200,.6),0 0 36px rgba(46,230,200,.5);}
.btn-outline-glass{
  display:inline-flex;align-items:center;gap:9px;
  border:1px solid var(--line);background:var(--glass);color:var(--text);
  border-radius:var(--r-btn);padding:13px 26px;font-size:.98rem;font-weight:600;
  transition:all .2s ease;
}
.btn-outline-glass:hover{border-color:var(--line-strong);background:var(--glass-2);color:var(--text);transform:translateY(-2px);}
.trust-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;max-width:700px;}
.trust-item .num{font-size:1.5rem;font-weight:800;color:var(--primary);letter-spacing:-.02em;}
.trust-item .label{font-size:.82rem;color:var(--weak);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.sec-head{max-width:660px;margin-bottom:46px;}
.sec-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.78rem;color:var(--primary);background:var(--primary-soft);
  border:1px solid rgba(46,230,200,.26);border-radius:999px;padding:5px 13px;margin-bottom:16px;
  letter-spacing:.02em;
}
.sec-tag.hot{color:var(--pink);background:rgba(255,77,141,.12);border-color:rgba(255,77,141,.3);}
.sec-head h2{font-size:clamp(1.7rem,3vw,2.3rem);font-weight:700;margin-bottom:14px;}
.sec-head p{color:var(--muted);font-size:1rem;}

/* ---------- 左侧目录 + 右侧内容 ---------- */
.doc-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:48px;align-items:start;}
.toc{
  position:sticky;top:150px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 20px;backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--shadow);
}
.toc h3{font-size:.92rem;color:var(--weak);font-weight:600;letter-spacing:.05em;margin-bottom:14px;}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:11px;color:var(--muted);font-size:.92rem;
  border-left:2px solid transparent;transition:all .2s ease;
}
.toc a:hover{background:var(--glass-2);color:var(--text);border-left-color:var(--line-strong);}
.toc a.active{background:var(--primary-soft);color:var(--primary);border-left-color:var(--primary);}
.toc .toc-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:.82rem;color:var(--weak);}

.content-block{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r);
  padding:30px;backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--shadow);
  margin-bottom:26px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.content-block:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-strong);}
.content-block:last-child{margin-bottom:0;}
.block-split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:center;}
.block-split.flip .block-media{order:-1;}
.block-media img{border-radius:var(--r-sm);border:1px solid var(--line);box-shadow:0 14px 34px rgba(0,0,0,.4);}
.content-block h3{font-size:1.32rem;font-weight:600;margin-bottom:12px;}
.content-block p.body{color:var(--muted);font-size:.98rem;margin-bottom:16px;}
.check-list li{display:flex;gap:11px;align-items:flex-start;color:var(--muted);font-size:.94rem;padding:6px 0;}
.check-list i{color:var(--primary);font-size:.85rem;margin-top:6px;}
.mini-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:20px;}
.mini-metrics div{
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px;
}
.mini-metrics .v{font-size:1.24rem;font-weight:800;color:var(--accent);letter-spacing:-.02em;}
.mini-metrics .k{font-size:.78rem;color:var(--weak);}

/* ---------- 能力网格 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.cap-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r);padding:26px;
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;height:100%;
}
.cap-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-strong);}
.cap-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--primary-soft);border:1px solid rgba(46,230,200,.28);color:var(--primary);
  font-size:1.05rem;margin-bottom:16px;
}
.cap-card h3{font-size:1.14rem;font-weight:600;margin-bottom:10px;}
.cap-card p{color:var(--muted);font-size:.93rem;}
.cap-card.wide{grid-column:span 2;}
.cap-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  font-size:.78rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;
  padding:4px 11px;background:rgba(255,255,255,.04);
}
.tag.gold{color:var(--accent);border-color:rgba(245,184,75,.32);background:rgba(245,184,75,.1);}
.tag.pink{color:var(--pink);border-color:rgba(255,77,141,.3);background:rgba(255,77,141,.1);}

/* ---------- 使用场景 ---------- */
.scene{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;align-items:center;margin-bottom:56px;}
.scene:last-child{margin-bottom:0;}
.scene.flip .scene-media{order:-1;}
.scene-media img{border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--shadow);}
.scene-text h3{font-size:1.42rem;font-weight:600;margin-bottom:14px;}
.scene-text p{color:var(--muted);margin-bottom:16px;font-size:.98rem;}
.scene-text .check-list li{font-size:.95rem;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{
  position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 22px;backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.step .idx{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--primary-soft);border:1px solid rgba(46,230,200,.3);color:var(--primary);
  font-weight:800;font-size:.92rem;margin-bottom:14px;
}
.step h3{font-size:1.04rem;font-weight:600;margin-bottom:8px;}
.step p{color:var(--muted);font-size:.9rem;}

/* ---------- 方案 ---------- */
.plan-table{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--shadow);
}
.plan-row{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;align-items:center;}
.plan-row + .plan-row{border-top:1px solid var(--line);}
.plan-row.head{background:rgba(255,255,255,.05);}
.plan-row.head > div{font-size:.86rem;color:var(--weak);font-weight:600;letter-spacing:.03em;}
.plan-row > div{padding:18px 22px;font-size:.94rem;color:var(--muted);}
.plan-row > div:first-child{color:var(--text);font-weight:600;}
.plan-row.reco{background:rgba(46,230,200,.06);}
.plan-row.reco > div:first-child{color:var(--primary);}
.plan-row .price{color:var(--accent);font-weight:800;font-size:1.06rem;}
.plan-foot{padding:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-color:#9BA9BA;--bs-accordion-border-color:rgba(255,255,255,.12);
  --bs-accordion-btn-color:#E8EEF6;--bs-accordion-active-color:#2EE6C8;--bs-accordion-active-bg:rgba(46,230,200,.05);
  --bs-accordion-btn-focus-box-shadow:none;--bs-accordion-border-radius:18px;--bs-accordion-inner-border-radius:18px;}
.accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r) !important;
  margin-bottom:14px;overflow:hidden;backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  background:transparent !important;color:var(--text) !important;font-weight:600;font-size:1rem;
  padding:20px 22px;box-shadow:none !important;position:relative;
}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--primary);font-size:.82rem;width:auto;height:auto;transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:none;}
.accordion-button:not(.collapsed){color:var(--primary) !important;}
.accordion-body{color:var(--muted);font-size:.95rem;padding:0 22px 22px;line-height:1.8;}
.accordion-item{border-left:2px solid transparent;transition:border-color .25s ease;}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left-color:var(--primary);box-shadow:0 0 24px rgba(46,230,200,.12);}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(46,230,200,.12),rgba(10,17,27,.9) 58%),var(--glass);
  border:1px solid rgba(46,230,200,.28);
  backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);padding:48px;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}
.cta-banner::after{
  content:"";position:absolute;right:-8%;top:-40%;width:420px;height:420px;
  background:radial-gradient(circle,rgba(46,230,200,.2),transparent 68%);pointer-events:none;
}
.cta-banner h2{font-size:clamp(1.6rem,2.8vw,2.15rem);font-weight:700;margin-bottom:14px;position:relative;z-index:2;}
.cta-banner p{color:var(--muted);position:relative;z-index:2;}
.cta-form{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px;}
.cta-form input{
  background:rgba(6,10,17,.6);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:13px 16px;color:var(--text);font-size:.94rem;outline:none;transition:all .2s ease;
}
.cta-form input::placeholder{color:var(--weak);}
.cta-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,230,200,.16);}
.cta-form .hint{font-size:.78rem;color:var(--weak);}
.cta-form button{border:0;cursor:pointer;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:16px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,27,.7),rgba(6,10,17,1));
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-brand p{color:var(--muted);font-size:.92rem;margin:16px 0 18px;max-width:340px;}
.footer-contact li{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:.88rem;padding:5px 0;}
.footer-contact i{color:var(--primary);font-size:.82rem;}
.footer-col h4{font-size:.94rem;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-col a{display:block;color:var(--muted);font-size:.9rem;padding:6px 0;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--weak);font-size:.84rem;
}
.footer-bottom a{color:var(--weak);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .doc-layout{grid-template-columns:224px minmax(0,1fr);gap:32px;}
  .cap-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cap-card.wide{grid-column:span 2;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .search-box,.topbar-contact{display:none;}
  .menu-toggle{display:inline-grid;place-items:center;}
  .doc-layout{grid-template-columns:1fr;}
  .toc{position:static;margin-bottom:26px;}
  .hero-inner{padding:66px 0 60px;}
  .cta-banner{grid-template-columns:1fr;padding:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.72;}
  .section{padding:56px 0;}
  .site-container{padding:0 18px;}
  .channel-row{padding:8px 18px;}
  .block-split,.scene{grid-template-columns:1fr;gap:22px;}
  .block-split.flip .block-media,.scene.flip .scene-media{order:0;}
  .trust-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cap-grid,.steps{grid-template-columns:1fr;}
  .cap-card.wide{grid-column:span 1;}
  .content-block{padding:22px;}
  .plan-row{grid-template-columns:1fr;padding:6px 0;}
  .plan-row.head{display:none;}
  .plan-row > div{padding:8px 20px;}
  .plan-row > div:first-child{padding-top:18px;}
  .mini-metrics{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .topbar-inner{height:62px;}
  .logo-text{font-size:.98rem;}
  .page-hero h1{font-size:1.72rem;}
  .hero-actions .btn-primary-glow,.hero-actions .btn-outline-glass{width:100%;justify-content:center;}
  .cta-banner{padding:26px 20px;}
}

/* roulang page: category2 */
:root{
  --bg:#060A11;
  --bg-2:#0A111B;
  --glass:rgba(255,255,255,0.055);
  --glass-2:rgba(255,255,255,0.08);
  --line:rgba(255,255,255,0.12);
  --line-soft:rgba(255,255,255,0.07);
  --text:#E8EEF6;
  --text-2:#9BA9BA;
  --text-3:#667788;
  --primary:#2EE6C8;
  --primary-dim:rgba(46,230,200,0.12);
  --primary-line:rgba(46,230,200,0.35);
  --gold:#F5B84B;
  --pink:#FF4D8D;
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --radius-lg:24px;
  --shadow:0 16px 40px rgba(0,0,0,0.38);
  --shadow-lift:0 24px 56px rgba(0,0,0,0.5);
  --gap:24px;

  --bs-primary:#2EE6C8;
  --bs-body-bg:#060A11;
  --bs-body-color:#E8EEF6;
  --bs-border-color:rgba(255,255,255,0.12);
  --bs-border-radius:14px;
  --bs-link-color:#2EE6C8;
  --bs-link-hover-color:#7CF3E0;
  --bs-font-sans-serif:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(46,230,200,0.10), transparent 62%),
    radial-gradient(760px 460px at 92% 6%, rgba(245,184,75,0.07), transparent 60%);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:#7CF3E0;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;letter-spacing:.16em;color:var(--primary);
  background:var(--primary-dim);border:1px solid var(--primary-line);
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
}
.section-title{font-size:clamp(1.75rem,3vw,2.4rem);font-weight:700;line-height:1.3;margin-bottom:16px;}
.section-sub{color:var(--text-2);max-width:640px;font-size:1rem;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,10,17,0.84);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;height:70px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:1.125rem;letter-spacing:-0.01em;}
.logo:hover{color:var(--text);}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(46,230,200,0.9),rgba(46,230,200,0.35));
  color:#04201B;font-weight:900;font-size:1.05rem;
  box-shadow:0 0 0 1px rgba(46,230,200,0.45),0 0 22px rgba(46,230,200,0.3);
}
.logo-text em{font-style:normal;color:var(--primary);margin-left:2px;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search i{position:absolute;left:12px;color:var(--text-3);font-size:.85rem;}
.nav-search input{
  width:210px;height:40px;padding:0 14px 0 34px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-btn);
  color:var(--text);font-size:.875rem;transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search input:focus{outline:none;border-color:var(--primary-line);box-shadow:0 0 0 3px rgba(46,230,200,0.14);}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border:0;border-radius:var(--radius-btn);
  background:var(--primary);color:#04201B;font-weight:700;font-size:.9375rem;
  box-shadow:0 0 0 1px rgba(46,230,200,0.45),0 0 24px rgba(46,230,200,0.35);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-glow:hover{color:#04201B;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(46,230,200,0.6),0 0 34px rgba(46,230,200,0.5);}
.btn-glow:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid var(--line);color:var(--text);font-size:.9375rem;font-weight:600;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-ghost:hover{color:var(--text);border-color:var(--primary-line);background:var(--glass);transform:translateY(-2px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-btn);
  background:var(--glass);border:1px solid var(--line);color:var(--text);font-size:1rem;
}
.channel-wrap{border-top:1px solid var(--line-soft);}
.channel-row{display:flex;gap:8px;overflow-x:auto;padding:10px 0;scrollbar-width:none;}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;font-size:.9375rem;
  color:var(--text-2);white-space:nowrap;border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.channel-link:hover{color:var(--text);background:var(--glass);}
.channel-link.active{
  color:var(--primary);background:rgba(46,230,200,0.1);
  border-color:var(--primary-line);box-shadow:0 0 18px rgba(46,230,200,0.18);
}
.mobile-panel{display:none;padding:12px 0 18px;border-top:1px solid var(--line-soft);}
.mobile-panel a{
  display:block;padding:11px 4px;color:var(--text-2);font-size:.9375rem;border-bottom:1px solid var(--line-soft);
}
.mobile-panel a:last-child{border-bottom:0;}
.mobile-panel a.active{color:var(--primary);}
.mobile-panel.open{display:block;}

/* ============ 首屏横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:78px 0 70px;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(6,10,17,0.96) 0%,rgba(6,10,17,0.88) 46%,rgba(10,17,27,0.72) 100%);
}
.page-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-120px;top:-180px;
  background:radial-gradient(circle,rgba(46,230,200,0.22),transparent 66%);
  pointer-events:none;
}
.page-hero .site-container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.875rem;color:var(--text-3);margin-bottom:20px;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs span.sep{color:var(--text-3);}
.page-hero h1{
  font-size:clamp(2rem,4.4vw,3.2rem);font-weight:800;line-height:1.22;
  letter-spacing:-0.02em;max-width:820px;margin-bottom:20px;
}
.page-hero h1 .hl{color:var(--primary);}
.hero-lead{color:var(--text-2);max-width:680px;font-size:1.0625rem;line-height:1.8;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:.875rem;
}
.pill i{color:var(--primary);font-size:.8rem;}

/* ============ 指标卡 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.stat-card{
  background:linear-gradient(180deg,var(--glass-2),var(--glass));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.08);
  backdrop-filter:blur(16px) saturate(140%);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--primary-line);box-shadow:var(--shadow-lift);}
.stat-num{font-size:2rem;font-weight:800;color:var(--primary);line-height:1.2;letter-spacing:-0.02em;}
.stat-num.gold{color:var(--gold);}
.stat-label{font-size:.9375rem;color:var(--text);margin-top:6px;font-weight:600;}
.stat-desc{font-size:.875rem;color:var(--text-3);margin-top:4px;}

/* ============ 场景交替图文 ============ */
.scene{display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:center;}
.scene + .scene{margin-top:88px;}
.scene.reverse .scene-media{order:2;}
.scene.reverse .scene-copy{order:1;}
.media-frame{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,17,0.06),rgba(6,10,17,0.5));
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.media-frame:hover img{transform:scale(1.045);}
.scene-copy h3{font-size:1.5rem;font-weight:700;margin-bottom:14px;line-height:1.4;}
.scene-copy p{color:var(--text-2);margin-bottom:18px;}
.tick-list li{
  display:flex;gap:12px;align-items:flex-start;padding:10px 0;
  border-bottom:1px dashed var(--line-soft);color:var(--text-2);font-size:.9375rem;
}
.tick-list li:last-child{border-bottom:0;}
.tick-list i{color:var(--primary);margin-top:5px;font-size:.8rem;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  font-size:.8125rem;padding:5px 12px;border-radius:999px;
  background:var(--primary-dim);color:var(--primary);border:1px solid var(--primary-line);
}
.tag.gold{background:rgba(245,184,75,0.12);color:var(--gold);border-color:rgba(245,184,75,0.32);}
.tag.pink{background:rgba(255,77,141,0.12);color:var(--pink);border-color:rgba(255,77,141,0.3);}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-top:44px;position:relative;}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--glass-2),var(--glass));
  border:1px solid var(--line);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.08);
  backdrop-filter:blur(16px) saturate(140%);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--primary-line);box-shadow:var(--shadow-lift);}
.step-no{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:var(--primary-dim);border:1px solid var(--primary-line);
  color:var(--primary);font-weight:800;margin-bottom:14px;
}
.step h3{font-size:1.125rem;font-weight:600;margin-bottom:8px;}
.step p{font-size:.9375rem;color:var(--text-2);}

/* ============ 设备对比 ============ */
.compare{
  margin-top:40px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,var(--glass-2),var(--glass));
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.08);
  backdrop-filter:blur(16px) saturate(140%);overflow:hidden;
}
.compare-row{
  display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr 0.9fr;
  gap:16px;padding:18px 24px;align-items:center;
  border-bottom:1px solid var(--line-soft);
  transition:background .2s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:not(.compare-head):hover{background:rgba(255,255,255,0.035);}
.compare-head{background:rgba(255,255,255,0.045);font-size:.875rem;color:var(--text-3);letter-spacing:.03em;}
.compare-name{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--text);font-size:.9375rem;}
.compare-name i{color:var(--primary);}
.compare-cell{color:var(--text-2);font-size:.9375rem;}
.compare-cell strong{color:var(--gold);font-weight:700;}
.badge-ok{
  display:inline-flex;align-items:center;gap:6px;font-size:.8125rem;padding:4px 11px;border-radius:999px;
  background:var(--primary-dim);color:var(--primary);border:1px solid var(--primary-line);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:40px auto 0;}
.faq-item{
  border-bottom:1px solid var(--line-soft);position:relative;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 44px 22px 20px;
  font-size:1.0625rem;font-weight:600;color:var(--text);position:relative;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:.8rem;color:var(--text-3);transition:transform .25s ease,color .25s ease;
}
.faq-item[open] summary{color:var(--primary);}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg);color:var(--primary);}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:transparent;transition:background .25s ease,box-shadow .25s ease;
}
.faq-item[open] summary::before{background:var(--primary);box-shadow:0 0 14px rgba(46,230,200,0.7);}
.faq-item summary:hover{color:var(--primary);}
.faq-body{padding:0 44px 24px 20px;color:var(--text-2);font-size:.9375rem;line-height:1.85;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);padding:56px 48px;
  background:linear-gradient(120deg,rgba(46,230,200,0.10),rgba(255,255,255,0.05) 55%,rgba(245,184,75,0.08));
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,0.08);
  backdrop-filter:blur(16px) saturate(140%);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{font-size:clamp(1.6rem,2.6vw,2.1rem);font-weight:700;margin-bottom:12px;}
.cta-band p{color:var(--text-2);max-width:560px;}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);background:var(--bg-2);
  padding:64px 0 28px;margin-top:20px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{color:var(--text-2);font-size:.9375rem;margin:16px 0 18px;max-width:340px;}
.footer-contact li{display:flex;gap:10px;align-items:center;color:var(--text-2);font-size:.875rem;margin-bottom:8px;}
.footer-contact i{color:var(--primary);font-size:.85rem;width:16px;}
.footer-col h4{font-size:1rem;font-weight:600;margin-bottom:16px;}
.footer-col a{display:block;color:var(--text-2);font-size:.9375rem;padding:6px 0;transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--primary);padding-left:4px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--text-3);font-size:.875rem;
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .site-container{max-width:1000px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .nav-search{display:none;}
  .scene{grid-template-columns:1fr;gap:28px;}
  .scene.reverse .scene-media{order:0;}
  .scene.reverse .scene-copy{order:0;}
  .scene + .scene{margin-top:60px;}
  .compare-row{grid-template-columns:1fr 1fr;padding:16px 18px;row-gap:8px;}
  .compare-head{display:none;}
  .compare-name{grid-column:1 / -1;font-size:1rem;}
  .compare-cell::before{content:attr(data-label);display:block;font-size:.75rem;color:var(--text-3);letter-spacing:.04em;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .brand-actions .btn-ghost{display:none;}
  .brand-actions .btn-glow{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .page-hero{padding:56px 0 52px;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;}
  .stat-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:38px 24px;}
  .faq-body{padding-right:24px;}
}
@media (max-width:520px){
  .site-container{padding:0 16px;}
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .logo{font-size:1rem;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .compare-row{grid-template-columns:1fr;}
}

/* roulang page: category3 */
:root{
  --bg:#060A11;
  --bg-2:#0A111B;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.12);
  --line-strong:rgba(255,255,255,.2);
  --primary:#2EE6C8;
  --primary-dim:rgba(46,230,200,.14);
  --gold:#F5B84B;
  --magenta:#FF4D8D;
  --text:#E8EEF6;
  --text-2:#9BA9BA;
  --text-3:#667788;
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --radius-lg:24px;
  --shadow:0 16px 40px rgba(0,0,0,.38);
  --shadow-lg:0 26px 60px rgba(0,0,0,.5);
  --font:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --bs-body-bg:#060A11;
  --bs-body-color:#E8EEF6;
  --bs-border-color:rgba(255,255,255,.12);
  --bs-border-radius:14px;
  --bs-link-color:#2EE6C8;
  --bs-link-hover-color:#5ff0d8;
  --bs-primary:#2EE6C8;
  --bs-font-sans-serif:var(--font);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(900px 520px at 12% -8%, rgba(46,230,200,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(245,184,75,.07), transparent 60%);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:#5ff0d8;}
button,input,textarea,select{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
::selection{background:rgba(46,230,200,.28);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:1440px){.site-container{max-width:1280px;}}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,10,17,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.brand-row{height:70px;display:flex;align-items:center;}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:1.12rem;letter-spacing:.01em;}
.logo:hover{color:var(--text);}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,#2EE6C8,#1aa892);
  color:#04120F;font-weight:900;font-size:1.05rem;
  box-shadow:0 0 22px rgba(46,230,200,.4);
}
.logo-text em{font-style:normal;color:var(--primary);margin-left:2px;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.site-search{
  display:flex;align-items:center;gap:8px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 12px;height:40px;min-width:200px;transition:border-color .2s ease,box-shadow .2s ease;
}
.site-search i{color:var(--text-3);font-size:.85rem;}
.site-search input{
  background:transparent;border:0;color:var(--text);font-size:.9rem;width:100%;outline:none;
}
.site-search input::placeholder{color:var(--text-3);}
.site-search:focus-within{border-color:rgba(46,230,200,.55);box-shadow:0 0 0 3px rgba(46,230,200,.12);}
.menu-toggle{
  display:none;align-items:center;gap:8px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  border-radius:var(--radius-btn);height:40px;padding:0 14px;font-size:.9rem;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.menu-toggle:hover{border-color:rgba(46,230,200,.45);background:var(--glass-2);}

/* buttons */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(135deg,#2EE6C8,#1fc9ae);
  color:#04120F;font-weight:700;font-size:.95rem;
  border:0;border-radius:var(--radius-btn);padding:11px 22px;
  box-shadow:0 0 0 1px rgba(46,230,200,.45),0 0 24px rgba(46,230,200,.32);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  cursor:pointer;
}
.btn-glow:hover{color:#04120F;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(46,230,200,.6),0 0 34px rgba(46,230,200,.5);}
.btn-glow:active{transform:translateY(0);}
.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  border-radius:var(--radius-btn);padding:11px 22px;font-weight:600;font-size:.95rem;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-glass:hover{color:var(--text);border-color:rgba(46,230,200,.5);background:var(--glass-2);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:.88rem;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary);}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* channel row */
.channel-bar{border-top:1px solid rgba(255,255,255,.06);}
.channel-row{
  display:flex;align-items:center;gap:8px;
  padding:9px 0;overflow-x:auto;scrollbar-width:none;white-space:nowrap;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex:0 0 auto;
  padding:7px 15px;border-radius:999px;
  color:var(--text-2);font-size:.92rem;font-weight:500;
  border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.channel-link:hover{color:var(--text);background:var(--glass);border-color:var(--line);}
.channel-link.active{
  color:#04120F;font-weight:700;
  background:linear-gradient(135deg,#2EE6C8,#22c2a8);
  box-shadow:0 0 18px rgba(46,230,200,.34);
}
.channel-link.active:hover{color:#04120F;}

/* offcanvas */
.offcanvas.dark-drawer{background:#0A111B;color:var(--text);border-right:1px solid var(--line);}
.dark-drawer .offcanvas-header{border-bottom:1px solid var(--line);}
.dark-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7;}
.dark-drawer .drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.07);
  color:var(--text);font-size:1rem;
}
.dark-drawer .drawer-link:hover{color:var(--primary);}

/* ============ hero banner ============ */
.page-main{padding:34px 0 0;}
.banner{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:54px 46px;
  background:
    linear-gradient(120deg,rgba(6,10,17,.94) 8%,rgba(6,10,17,.78) 52%,rgba(6,10,17,.62) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border:1px solid var(--line);
  box-shadow:var(--shadow-lg);
}
.banner::after{
  content:"";position:absolute;inset:auto -120px -160px auto;
  width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,200,.30),transparent 66%);
  pointer-events:none;
}
.banner-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
.crumb{display:flex;align-items:center;gap:8px;font-size:.86rem;color:var(--text-3);margin-bottom:18px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb i{font-size:.62rem;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
  background:var(--primary-dim);border:1px solid rgba(46,230,200,.3);
  color:var(--primary);font-size:.82rem;font-weight:600;letter-spacing:.02em;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.banner h1{
  font-size:clamp(2.1rem,4.4vw,3.35rem);
  font-weight:800;letter-spacing:-.02em;line-height:1.22;margin-bottom:18px;
}
.banner h1 span{color:var(--primary);}
.banner-lead{max-width:620px;color:var(--text-2);font-size:1.02rem;line-height:1.85;margin-bottom:26px;}
.banner-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.banner-facts{display:flex;flex-wrap:wrap;gap:26px;padding-top:22px;border-top:1px solid var(--line);}
.fact-item strong{display:block;font-size:1.5rem;font-weight:800;color:var(--primary);line-height:1.2;}
.fact-item span{font-size:.84rem;color:var(--text-3);}

.price-card{
  background:linear-gradient(150deg,rgba(255,255,255,.08),rgba(255,255,255,.04));
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  padding:26px 24px;
}
.price-card h3{font-size:1.05rem;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.price-card h3 i{color:var(--primary);}
.price-line{display:flex;align-items:baseline;justify-content:space-between;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.1);}
.price-line:last-of-type{border-bottom:0;}
.price-line .name{color:var(--text-2);font-size:.92rem;}
.price-line .num{font-weight:800;color:var(--text);font-size:1.05rem;}
.price-line .num em{font-style:normal;font-size:.78rem;color:var(--text-3);font-weight:500;margin-left:3px;}
.price-line .num.gold{color:var(--gold);}
.price-note{margin-top:16px;font-size:.82rem;color:var(--text-3);display:flex;gap:8px;align-items:flex-start;}
.price-note i{color:var(--primary);margin-top:4px;}

/* badge */
.tag{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 10px;border-radius:999px;font-size:.75rem;font-weight:600;
  background:var(--primary-dim);color:var(--primary);border:1px solid rgba(46,230,200,.26);
}
.tag-hot{background:rgba(255,77,141,.14);color:var(--magenta);border-color:rgba(255,77,141,.3);}
.tag-gold{background:rgba(245,184,75,.14);color:var(--gold);border-color:rgba(245,184,75,.3);}

/* ============ sections ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:clamp(1.7rem,3vw,2.35rem);font-weight:700;line-height:1.35;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:1rem;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.overline{
  display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:12px;
}
.glass-panel{
  background:linear-gradient(150deg,rgba(255,255,255,.072),rgba(255,255,255,.035));
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}

/* compare table */
.table-wrap{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.02));}
.table-scroll{overflow-x:auto;}
table.compare{width:100%;min-width:760px;border-collapse:collapse;}
table.compare th,table.compare td{
  padding:16px 18px;text-align:left;font-size:.94rem;
  border-bottom:1px solid rgba(255,255,255,.08);
  vertical-align:middle;
}
table.compare thead th{
  background:rgba(46,230,200,.07);color:var(--text);
  font-weight:700;font-size:.95rem;white-space:nowrap;
}
table.compare thead th.hl{color:var(--gold);background:rgba(245,184,75,.09);}
table.compare tbody th{font-weight:600;color:var(--text-2);width:210px;background:rgba(255,255,255,.02);}
table.compare tbody tr{transition:background .2s ease;}
table.compare tbody tr:hover{background:rgba(255,255,255,.035);}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td{color:var(--text);}
table.compare td .ok{color:var(--primary);font-weight:600;}
table.compare td .muted{color:var(--text-3);}
.table-foot{padding:16px 20px;font-size:.85rem;color:var(--text-3);border-top:1px solid var(--line);display:flex;gap:10px;align-items:center;}
.table-foot i{color:var(--primary);}

/* asymmetric two column */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;align-items:start;}
.split h2{font-size:clamp(1.6rem,2.6vw,2.15rem);font-weight:700;line-height:1.38;margin-bottom:16px;}
.split .desc{color:var(--text-2);font-size:1rem;line-height:1.85;}
.mini-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px;}
.mini-stat{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 18px;transition:transform .2s ease,border-color .2s ease;
}
.mini-stat:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);}
.mini-stat strong{display:block;font-size:1.35rem;font-weight:800;color:var(--primary);}
.mini-stat.gold strong{color:var(--gold);}
.mini-stat span{font-size:.83rem;color:var(--text-3);}
.benefit-list{list-style:none;padding:0;margin:0;display:grid;gap:14px;}
.benefit-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;border-radius:var(--radius-sm);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.benefit-list li:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--shadow);}
.benefit-list .ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:var(--primary-dim);color:var(--primary);font-size:.95rem;
}
.benefit-list h4{font-size:1.02rem;font-weight:600;margin-bottom:4px;}
.benefit-list p{font-size:.9rem;color:var(--text-2);margin:0;line-height:1.7;}

/* cases */
.case-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:stretch;}
.case-main{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);min-height:380px;display:flex;flex-direction:column;justify-content:flex-end;}
.case-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.case-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,17,.34) 0%,rgba(6,10,17,.9) 72%,rgba(6,10,17,.97) 100%);}
.case-main:hover img{transform:scale(1.04);}
.case-body{position:relative;z-index:2;padding:32px 30px;}
.case-body h3{font-size:1.35rem;font-weight:700;margin:12px 0 10px;}
.case-body p{color:var(--text-2);font-size:.95rem;max-width:560px;}
.case-metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:20px;}
.case-metrics div strong{display:block;font-size:1.55rem;font-weight:800;color:var(--gold);line-height:1.2;}
.case-metrics div span{font-size:.82rem;color:var(--text-3);}
.case-side{display:grid;gap:24px;}
.case-mini{
  display:flex;gap:16px;padding:18px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.case-mini:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--shadow);}
.case-mini .thumb{flex:0 0 84px;height:84px;border-radius:var(--radius-sm);overflow:hidden;}
.case-mini .thumb img{width:100%;height:100%;object-fit:cover;}
.case-mini h4{font-size:1rem;font-weight:600;margin-bottom:6px;line-height:1.45;}
.case-mini p{font-size:.85rem;color:var(--text-2);margin:0;line-height:1.65;}
.case-mini .num{color:var(--primary);font-weight:700;font-size:.85rem;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);}
.step .no{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--primary-dim);border:1px solid rgba(46,230,200,.3);
  color:var(--primary);font-weight:800;font-size:.95rem;margin-bottom:14px;
}
.step h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;}
.step p{font-size:.9rem;color:var(--text-2);margin:0;line-height:1.72;}

/* faq */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:var(--glass);overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:rgba(46,230,200,.28);}
.faq-item.open{border-color:rgba(46,230,200,.42);background:var(--glass-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;color:var(--text);
  padding:20px 22px;font-size:1rem;font-weight:600;text-align:left;cursor:pointer;
}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-4px;border-radius:var(--radius-sm);}
.faq-q .chev{flex:0 0 auto;color:var(--text-3);transition:transform .25s ease,color .25s ease;}
.faq-item.open .faq-q .chev{transform:rotate(180deg);color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a-inner{
  padding:0 22px 22px 22px;color:var(--text-2);font-size:.94rem;line-height:1.8;
  border-left:2px solid transparent;transition:border-color .25s ease;
}
.faq-item.open .faq-a-inner{border-left-color:var(--primary);box-shadow:inset 2px 0 12px -6px rgba(46,230,200,.9);}

/* cta banner */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:52px 46px;border:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(6,10,17,.92),rgba(6,10,17,.74)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  box-shadow:var(--shadow-lg);
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;left:-90px;bottom:-150px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,200,.26),transparent 68%);pointer-events:none;
}
.cta-band h2{position:relative;z-index:2;font-size:clamp(1.6rem,2.6vw,2.15rem);font-weight:700;margin-bottom:10px;}
.cta-band p{position:relative;z-index:2;color:var(--text-2);max-width:560px;margin:0;}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* footer */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:rgba(10,17,27,.72);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{color:var(--text-2);font-size:.9rem;margin:18px 0 18px;max-width:340px;line-height:1.78;}
.footer-contact{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.footer-contact li{display:flex;gap:10px;align-items:center;color:var(--text-2);font-size:.88rem;}
.footer-contact i{color:var(--primary);font-size:.85rem;width:16px;}
.footer-col h4{font-size:.95rem;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col a{display:block;color:var(--text-2);font-size:.89rem;padding:6px 0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--primary);transform:translateX(3px);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--text-3);font-size:.83rem;
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* responsive */
@media(max-width:1199.98px){
  .banner{padding:46px 34px;}
  .banner-grid{gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:34px;}
  .steps{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:991.98px){
  .site-search{display:none;}
  .banner-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:30px;}
  .case-grid{grid-template-columns:1fr;}
  .case-main{min-height:320px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
}
@media(max-width:767.98px){
  .brand-row{height:62px;}
  .menu-toggle{display:inline-flex;}
  .brand-actions .btn-glass,.brand-actions .btn-glow{display:none;}
  .logo{font-size:1rem;}
  .logo-mark{width:32px;height:32px;border-radius:10px;font-size:.95rem;}
  .banner{padding:34px 22px;border-radius:var(--radius);}
  .banner h1{font-size:clamp(1.85rem,7vw,2.4rem);}
  .banner-facts{gap:20px;}
  .fact-item strong{font-size:1.25rem;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .mini-stats{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;border-radius:var(--radius);}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}
@media(max-width:520px){
  .site-container{padding:0 16px;}
  .banner-cta .btn-glow,.banner-cta .btn-glass{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn-glow,.cta-actions .btn-glass{width:100%;}
  .case-body{padding:24px 20px;}
  .case-metrics{gap:18px;}
  .case-mini{flex-direction:column;}
  .case-mini .thumb{flex:0 0 140px;height:120px;}
}