/* roulang page: index */
:root{
  --bg-900:#05080F;
  --bg-800:#0A1120;
  --bg-700:#101A2C;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.085);
  --brand:#2EE6C8;
  --brand-deep:#12A88F;
  --violet:#6E5BFF;
  --spark:#FF7A45;
  --text-1:#EAF1FF;
  --text-2:#A9B8D0;
  --text-3:#6F8099;
  --r-card:18px;
  --r-lg:24px;
  --r-img:14px;
  --r-input:12px;
  --sh-card:0 18px 48px rgba(2,6,16,.55);
  --sh-glow-cyan:0 10px 30px rgba(46,230,200,.28);
  --sh-glow-orange:0 12px 34px rgba(255,122,69,.32);
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-latin:'Space Grotesk','Segoe UI',Arial,sans-serif;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--bg-900);color:var(--text-2);
  font-family:var(--font-cn);font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;
}
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(720px 460px at 82% 6%, rgba(46,230,200,.08), transparent 70%),
    radial-gradient(620px 460px at 6% 42%, rgba(110,91,255,.06), transparent 72%);
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--text-1);font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
strong{color:var(--text-1);font-weight:700}
::selection{background:rgba(46,230,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 clamp(20px,3.4vw,32px);position:relative;z-index:2}
.section{padding:clamp(56px,7.6vw,96px) 0;position:relative;z-index:1}
.section--alt{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-latin);
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);font-weight:600;
}
.sec-head{max-width:760px;margin-bottom:clamp(32px,4vw,48px)}
.sec-title{font-size:clamp(24px,3.1vw,36px);line-height:1.25;font-weight:700;margin-top:12px;letter-spacing:.005em}
.sec-desc{font-size:16px;line-height:1.85;color:var(--text-2);margin-top:14px;max-width:680px}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand);
  padding-bottom:2px;border-bottom:1px dashed rgba(46,230,200,.45);transition:border-color .2s,color .2s;
}
.text-link i{font-size:12px;transition:transform .22s ease}
.text-link:hover{border-bottom-style:solid;border-bottom-color:var(--brand)}
.text-link:hover i{transform:translateX(4px)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;
  font-size:15px;font-weight:600;padding:13px 26px;line-height:1;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .26s ease,background .22s ease,color .22s ease,filter .2s ease;
  white-space:nowrap;
}
.btn:active{transform:scale(.985)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-spark{background:var(--spark);color:#1B0A00;box-shadow:var(--sh-glow-orange)}
.btn-spark:hover{filter:brightness(1.08);box-shadow:0 14px 40px rgba(255,122,69,.45);color:#1B0A00}
.btn-ghost{background:rgba(46,230,200,.06);border-color:rgba(46,230,200,.42);color:var(--brand)}
.btn-ghost:hover{background:rgba(46,230,200,.13);box-shadow:var(--sh-glow-cyan)}
.btn-block{width:100%}

.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:12px;font-weight:600;
  padding:4px 12px;border:1px solid rgba(46,230,200,.4);background:transparent;color:var(--brand);
  letter-spacing:.02em;line-height:1.6;
}
.badge-hot{border-color:transparent;background:var(--spark);color:#1B0A00}

.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:0 26px 60px rgba(2,6,16,.72)}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;height:var(--nav-h);
  display:flex;align-items:center;border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.8);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:26px;width:100%}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;font-size:17px;white-space:nowrap}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(46,230,200,.24),rgba(110,91,255,.24));
  border:1px solid rgba(46,230,200,.38);color:var(--brand);font-size:13px;
  box-shadow:0 0 18px rgba(46,230,200,.2);
}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:14px}
.nav-link{
  position:relative;color:var(--text-2);font-size:15px;font-weight:500;padding:6px 0;line-height:1.4;
}
.nav-link::after{
  content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);opacity:0;box-shadow:0 0 10px rgba(46,230,200,.75);transition:opacity .22s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after,.nav-link.active::after{opacity:1}
.nav-link.active{color:var(--brand)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:color .2s,border-color .2s,background .2s;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(46,230,200,.42);background:rgba(46,230,200,.08)}
.hamburger{display:none;width:38px;height:38px;border-radius:50%;place-items:center;background:var(--glass);border:1px solid var(--line);color:var(--text-1);font-size:15px}
.hamburger:hover{color:var(--brand);border-color:rgba(46,230,200,.42)}

.search-layer{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:88;
  background:rgba(10,17,32,.96);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);padding:0 clamp(20px,3.4vw,32px);
  max-height:0;overflow:hidden;transition:max-height .32s ease,padding .32s ease;
}
.search-layer.open{max-height:140px;padding:20px clamp(20px,3.4vw,32px)}
.search-form{max-width:1240px;margin:0 auto;display:flex;gap:12px}
.search-form input{
  flex:1;background:var(--bg-700);border:1px solid var(--line);border-radius:var(--r-input);
  padding:12px 16px;color:var(--text-1);outline:none;transition:border-color .2s,box-shadow .2s;
}
.search-form input::placeholder{color:var(--text-3)}
.search-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,230,200,.15)}

.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:95;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;z-index:96;
  background:rgba(10,17,32,.94);backdrop-filter:blur(18px);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .32s ease;padding:24px 22px;display:flex;flex-direction:column;gap:6px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer a.drawer-link{
  color:var(--text-1);font-size:16px;font-weight:500;padding:13px 12px;border-radius:12px;
  border:1px solid transparent;transition:background .2s,border-color .2s,color .2s;
}
.drawer a.drawer-link:hover,.drawer a.drawer-link.active{background:rgba(46,230,200,.08);border-color:rgba(46,230,200,.28);color:var(--brand)}
.drawer .btn{margin-top:auto}

/* ===== Hero ===== */
.hero{
  position:relative;padding-top:calc(var(--nav-h) + 28px);padding-bottom:clamp(56px,7vw,96px);
  overflow:hidden;
}
.grid-noise{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 55% 26%,#000,transparent 74%);
  mask-image:radial-gradient(circle at 55% 26%,#000,transparent 74%);
}
.arc{position:absolute;border:1px solid rgba(255,255,255,.13);border-radius:50%;pointer-events:none;z-index:0}
.arc-1{width:640px;height:640px;top:-260px;right:-180px}
.arc-2{width:420px;height:420px;top:-120px;right:60px;border-color:rgba(46,230,200,.16);border-style:dashed}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(28px,4vw,52px);align-items:center}
.hero-copy>*+*{margin-top:22px}
.hero-copy .eyebrow{margin-top:0}
.hero h1{
  font-size:clamp(30px,4.2vw,54px);line-height:1.15;font-weight:800;letter-spacing:.002em;color:var(--text-1);
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:flex;flex-wrap:wrap;gap:clamp(20px,3vw,42px);padding-top:10px}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-family:var(--font-latin);font-size:28px;line-height:1.2;color:var(--spark);font-weight:700;letter-spacing:.01em}
.hero-stats span{font-size:13px;color:var(--text-3);letter-spacing:.02em}

.hero-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:4/3;box-shadow:var(--sh-card);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:'';position:absolute;inset:0;background:rgba(46,230,200,.06);pointer-events:none}
.hero-badge{
  position:absolute;right:18px;bottom:18px;z-index:3;display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:16px;background:rgba(10,17,32,.72);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);max-width:min(300px,72%);
  box-shadow:0 16px 40px rgba(2,6,16,.6);
}
.hero-badge i{color:var(--brand);font-size:18px;flex:0 0 auto}
.hero-badge b{display:block;color:var(--text-1);font-size:13.5px;line-height:1.5;font-weight:600}
.hero-badge span{display:block;color:var(--text-3);font-size:12px;line-height:1.6;margin-top:2px}

/* ===== Highlights ===== */
.hl-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.hl-main{padding:clamp(24px,2.6vw,32px);display:flex;flex-direction:column;position:relative;overflow:hidden}
.hl-num{
  font-family:var(--font-latin);font-size:64px;line-height:1;font-weight:700;
  color:rgba(255,255,255,.1);letter-spacing:.02em;margin-bottom:8px;
}
.hl-main h3{font-size:22px;line-height:1.35;font-weight:600}
.hl-main p{margin-top:12px;font-size:15.5px;color:var(--text-2)}
.hl-main .text-link{margin-top:auto;padding-top:24px;align-self:flex-start}
.hl-side{display:flex;flex-direction:column;gap:20px}
.hl-strip{
  padding:22px 24px;display:flex;gap:16px;align-items:flex-start;flex:1;position:relative;overflow:hidden;
}
.hl-strip::before{
  content:'';position:absolute;left:0;top:14px;bottom:14px;width:2px;background:var(--brand);
  opacity:0;transition:opacity .25s ease;box-shadow:0 0 12px rgba(46,230,200,.7);
}
.hl-strip:hover::before{opacity:1}
.hl-strip i{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  background:rgba(46,230,200,.1);border:1px solid rgba(46,230,200,.28);color:var(--brand);font-size:15px;
}
.hl-strip h3{font-size:17px;font-weight:600}
.hl-strip p{font-size:14.5px;color:var(--text-2);margin-top:4px;line-height:1.75}

/* ===== Demo ===== */
.demo-grid{display:grid;grid-template-columns:6fr 6fr;gap:clamp(28px,4vw,52px);align-items:center}
.step-list{margin-top:32px;display:flex;flex-direction:column;gap:22px}
.step-list li{display:flex;gap:18px;align-items:flex-start;padding-bottom:22px;border-bottom:1px solid var(--line)}
.step-list li:last-child{border-bottom:0;padding-bottom:0}
.step-no{
  font-family:var(--font-latin);font-size:20px;font-weight:700;color:var(--brand);flex:0 0 auto;
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(46,230,200,.08);border:1px solid rgba(46,230,200,.3);
}
.step-list h3{font-size:18px;font-weight:600}
.step-list p{font-size:15px;color:var(--text-2);margin-top:6px}
.demo-visual{margin:0;position:relative}
.demo-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);
}
.demo-visual figcaption{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.7}

/* ===== Proof ===== */
.proof-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:28px 0 36px;
  border-bottom:1px solid var(--line);
}
.proof-stats div{display:flex;flex-direction:column;gap:6px}
.proof-stats strong{font-family:var(--font-latin);font-size:clamp(26px,3vw,38px);line-height:1.1;color:var(--spark);font-weight:700}
.proof-stats span{font-size:14px;color:var(--text-2)}
.logo-wall{display:flex;flex-wrap:wrap;gap:12px;padding:32px 0 8px}
.logo-wall span{
  font-size:13.5px;color:var(--text-2);border:1px solid var(--line);border-radius:999px;
  padding:8px 18px;background:var(--glass);transition:border-color .22s,color .22s;
}
.logo-wall span:hover{border-color:rgba(46,230,200,.35);color:var(--text-1)}
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:32px}
.case-item{padding:26px 28px;display:flex;flex-direction:column;gap:12px}
.case-item h3{font-size:18px;font-weight:600}
.case-item p{font-size:15px;color:var(--text-2)}
.case-item .case-meta{display:flex;gap:16px;font-size:13px;color:var(--text-3);font-family:var(--font-latin)}

/* ===== Pricing ===== */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  padding:30px 28px 28px;display:flex;flex-direction:column;position:relative;overflow:hidden;
  background:rgba(255,255,255,.08);
}
.price-card h3{font-size:19px;font-weight:600}
.price-card .price-desc{font-size:14px;color:var(--text-3);margin-top:8px;line-height:1.75}
.price-amount{display:flex;align-items:flex-end;gap:6px;margin:22px 0 6px}
.price-amount strong{font-family:var(--font-latin);font-size:40px;line-height:1;font-weight:700;color:var(--text-1)}
.price-amount em{font-style:normal;font-size:14px;color:var(--text-3);padding-bottom:4px}
.feature-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;font-size:14.5px}
.feature-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text-2)}
.feature-list i{color:var(--brand);font-size:12px;margin-top:7px;flex:0 0 auto}
.price-card .btn{margin-top:auto;margin-top:28px}
.price-card.featured{border-color:rgba(46,230,200,.5);box-shadow:var(--sh-card),0 0 40px rgba(46,230,200,.12)}
.price-card.featured::after{
  content:'';position:absolute;left:12%;right:12%;bottom:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(46,230,200,.85),transparent);
  filter:blur(1px);
}
.price-tag{position:absolute;top:20px;right:22px}

/* ===== News ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{padding:16px 16px 20px;display:flex;flex-direction:column;gap:14px}
.news-thumb{display:block;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;border:1px solid var(--line)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand)}
.news-sum{
  font-size:14.5px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;gap:12px;padding-top:12px;border-top:1px solid var(--line);
}
.news-date{font-family:var(--font-latin);font-size:13px;color:var(--text-3);margin-left:auto}
.news-arrow{color:var(--text-3);font-size:13px;transition:transform .22s ease,color .22s ease}
.news-card:hover .news-arrow{transform:translateX(4px);color:var(--brand)}
.news-empty{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:52px 24px;text-align:center;
  background:var(--glass);display:flex;flex-direction:column;align-items:center;gap:14px;
}
.news-empty i{font-size:26px;color:var(--brand);opacity:.8}
.news-empty p{font-size:15px;color:var(--text-2)}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:rgba(46,230,200,.28)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;padding:20px 22px;
  font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6;
}
.faq-q .q-text{flex:1}
.faq-icon{
  width:26px;height:26px;flex:0 0 auto;display:grid;place-items:center;border-radius:50%;
  border:1px solid var(--line);color:var(--text-2);font-size:12px;transition:transform .28s ease,color .25s ease,border-color .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--brand);border-color:rgba(46,230,200,.5)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a-inner{padding:0 22px 22px 22px;border-left:2px solid var(--brand);margin-left:22px;padding-left:18px}
.faq-a-inner p{font-size:15px;line-height:1.8;color:var(--text-2)}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:clamp(28px,4vw,48px);align-items:start}
.form-card{padding:clamp(24px,2.8vw,34px)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13.5px;color:var(--text-2);font-weight:500}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-700);border:1px solid var(--line);border-radius:var(--r-input);
  padding:12px 14px;color:var(--text-1);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,230,200,.15);
}
.form-note{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:14px}
.form-status{
  margin-top:16px;font-size:14px;padding:12px 16px;border-radius:12px;display:none;
  border:1px solid rgba(46,230,200,.4);background:rgba(46,230,200,.08);color:var(--brand);
}
.form-status.show{display:block}
.contact-info{display:flex;flex-direction:column;gap:18px}
.info-item{padding:22px 24px;display:flex;gap:16px;align-items:flex-start}
.info-item i{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  background:rgba(110,91,255,.14);border:1px solid rgba(110,91,255,.34);color:#A79CFF;font-size:15px;
}
.info-item h3{font-size:16px;font-weight:600}
.info-item p{font-size:14.5px;color:var(--text-2);margin-top:4px;line-height:1.75}

/* ===== Footer ===== */
.site-footer{background:var(--bg-800);border-top:1px solid var(--line);position:relative;overflow:hidden}
.footer-arc{
  position:absolute;width:520px;height:520px;border:1px solid rgba(255,255,255,.14);border-radius:50%;
  right:-220px;bottom:-320px;pointer-events:none;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding:clamp(48px,6vw,72px) 0 40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);line-height:1.7}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:center;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.to-top{
  margin-left:auto;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);
  border:1px solid var(--line);border-radius:999px;padding:8px 16px;transition:color .2s,border-color .2s;
}
.to-top:hover{color:var(--brand);border-color:rgba(46,230,200,.4)}

/* ===== Floating CTA ===== */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:80;display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:999px;background:var(--spark);color:#1B0A00;font-size:14px;font-weight:700;
  box-shadow:var(--sh-glow-orange);opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,filter .2s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{filter:brightness(1.08);color:#1B0A00}

@media (max-width:1024px){
  .nav-links{display:none}
  .hamburger{display:grid}
  .hero-grid{grid-template-columns:6fr 6fr;gap:32px}
  .hl-grid{grid-template-columns:1fr;gap:20px}
  .hl-side{flex-direction:row;flex-wrap:wrap}
  .hl-strip{flex:1 1 260px}
  .demo-grid{grid-template-columns:1fr;gap:36px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .case-row{grid-template-columns:1fr}
}
@media (max-width:768px){
  :root{--nav-h:56px}
  .hero-grid{grid-template-columns:1fr}
  .hero-copy>*+*{margin-top:18px}
  .price-grid{grid-template-columns:1fr}
  .proof-stats{grid-template-columns:1fr;gap:18px;padding-bottom:28px}
  .form-row{grid-template-columns:1fr}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:14px}
  .float-cta{
    left:16px;right:16px;bottom:0;border-radius:0;height:56px;justify-content:center;
    padding:0 20px;transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .hero-badge{position:static;margin-top:14px;max-width:none}
  .hero-visual{aspect-ratio:16/11}
}
@media (max-width:640px){
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:22px}
  .hero-stats strong{font-size:24px}
  .hl-num{font-size:52px}
  .footer-bottom .to-top{margin-left:0;width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg-900:#05080F;
  --bg-800:#0A1120;
  --bg-700:#101A2C;
  --glass:rgba(255,255,255,0.055);
  --line:rgba(255,255,255,0.085);
  --brand:#2EE6C8;
  --brand-deep:#12A88F;
  --violet:#6E5BFF;
  --spark:#FF7A45;
  --text-1:#EAF1FF;
  --text-2:#A9B8D0;
  --text-3:#6F8099;
  --r-card:18px;
  --r-big:24px;
  --r-img:14px;
  --r-input:12px;
  --sh-card:0 18px 48px rgba(2,6,16,.55);
  --sh-glow-cyan:0 10px 30px rgba(46,230,200,.28);
  --sh-glow-orange:0 12px 34px rgba(255,122,69,.32);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-2);
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#5BF0D8}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;line-height:1.25;letter-spacing:.005em}
h1{font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.15}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:clamp(19px,2vw,21px);font-weight:600}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.font-latin{font-family:'Space Grotesk','Sora','Inter',ui-sans-serif,sans-serif}
.eyebrow{
  font-family:'Space Grotesk','Sora','Inter',sans-serif;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7}
.lead{font-size:17px;color:var(--text-2);max-width:760px}
.muted{color:var(--text-3);font-size:13px;line-height:1.7}

/* ============ Header / Nav ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.scrolled{
  background:rgba(5,8,15,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;font-size:16.5px;letter-spacing:.01em}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(46,230,200,.22),rgba(110,91,255,.18));
  border:1px solid rgba(46,230,200,.35);
  color:var(--brand);font-size:14px;
  box-shadow:0 0 18px rgba(46,230,200,.18);
}
.nav-links{display:none;align-items:center;gap:28px}
.nav-link{
  position:relative;color:var(--text-2);font-size:15px;font-weight:500;
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--brand),rgba(46,230,200,0));
  border-radius:2px;transition:right .26s ease;box-shadow:0 0 10px rgba(46,230,200,.55);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{right:0}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{right:0}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:all .22s ease;backdrop-filter:blur(10px);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(46,230,200,.4);box-shadow:0 0 16px rgba(46,230,200,.2)}
.menu-toggle{display:inline-flex}
.nav-cta{display:none}
@media(min-width:1024px){
  .nav-links{display:flex}
  .menu-toggle{display:none}
  .nav-cta{display:inline-flex}
}
/* 搜索层 */
.search-layer{
  max-height:0;overflow:hidden;transition:max-height .32s ease;
  border-top:1px solid transparent;
  background:rgba(5,8,15,.92);backdrop-filter:blur(14px);
}
.search-layer.open{max-height:120px;border-top-color:var(--line)}
.search-inner{display:flex;gap:12px;padding:18px 0}
.search-inner input{
  flex:1;background:var(--bg-700);border:1px solid var(--line);border-radius:999px;
  padding:12px 20px;color:var(--text-1);font-size:15px;outline:none;
}
.search-inner input::placeholder{color:var(--text-3)}
.search-inner input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,230,200,.15)}
/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;z-index:70;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;z-index:80;
  background:rgba(10,17,32,.92);backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:22px 22px 0;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto}
.drawer-nav a{
  color:var(--text-2);font-size:16px;padding:13px 12px;border-radius:12px;
  border:1px solid transparent;transition:all .2s ease;
}
.drawer-nav a:hover{background:var(--glass);color:var(--text-1);border-color:var(--line)}
.drawer-nav a.active{color:var(--brand);background:rgba(46,230,200,.08);border-color:rgba(46,230,200,.3)}
.drawer-foot{padding:18px 0 22px}
@media(min-width:1024px){.drawer,.drawer-mask{display:none}}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn:active{transform:scale(.985)}
.btn-spark{
  background:linear-gradient(135deg,#FF8B57,#FF6A2E);color:#160B04;
  box-shadow:var(--sh-glow-orange);
}
.btn-spark:hover{color:#160B04;filter:brightness(1.08);box-shadow:0 14px 40px rgba(255,122,69,.42)}
.btn-ghost{
  background:var(--glass);border-color:rgba(46,230,200,.4);color:var(--brand);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:#6BF3DE;border-color:rgba(46,230,200,.75);box-shadow:0 0 22px rgba(46,230,200,.22)}
.btn-line{
  background:transparent;border-color:var(--line);color:var(--text-1);padding:11px 22px;font-size:14px;
}
.btn-line:hover{border-color:rgba(46,230,200,.45);color:var(--brand)}
.btn-block{width:100%}

/* ============ Badges ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.03em;
  border:1px solid rgba(46,230,200,.4);color:var(--brand);background:transparent;
}
.badge-spark{background:var(--spark);border-color:var(--spark);color:#1B0C04}
.badge-violet{border-color:rgba(110,91,255,.5);color:#9C8EFF}

/* ============ Hero band ============ */
.page-hero{
  position:relative;padding-top:calc(var(--nav-h) + 42px);padding-bottom:48px;
  overflow:hidden;border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(rgba(46,230,200,.06),rgba(5,8,15,.86)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.9;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:220px;z-index:1;
  background:linear-gradient(180deg,rgba(5,8,15,0),var(--bg-900));
}
.hero-arc{
  position:absolute;z-index:1;border:1px solid rgba(46,230,200,.14);border-radius:50%;
  pointer-events:none;
}
.hero-arc.a1{width:520px;height:520px;right:-160px;top:-180px}
.hero-arc.a2{width:760px;height:760px;right:-280px;top:-300px;border-color:rgba(110,91,255,.12)}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{opacity:.5}
.crumbs .current{color:var(--text-2)}
.page-hero h1{max-width:880px;margin-bottom:18px}
.hero-sub{max-width:720px;color:var(--text-2);font-size:16.5px;margin-bottom:26px}
.hero-cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;border-top:1px solid var(--line);padding-top:24px}
.hero-stat b{
  display:block;font-family:'Space Grotesk','Sora',sans-serif;
  font-size:30px;font-weight:700;color:var(--spark);line-height:1.15;
}
.hero-stat span{font-size:13px;color:var(--text-3)}

/* ============ Grid / layout utils ============ */
.grid{display:grid;gap:22px}
.g-2{grid-template-columns:1fr}
.g-3{grid-template-columns:1fr}
@media(min-width:768px){
  .g-2{grid-template-columns:repeat(2,1fr)}
  .g-3{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:1024px){.g-3{grid-template-columns:repeat(3,1fr)}}
.section-head{max-width:760px;margin-bottom:38px}
.section-head h2{margin-bottom:12px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ Cards ============ */
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;backdrop-filter:blur(14px);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--sh-card)}
.card h3{margin-bottom:10px}
.card p:last-child{margin-bottom:0}
.card-num{
  font-family:'Space Grotesk','Sora',sans-serif;font-size:34px;font-weight:700;
  color:rgba(234,241,255,.16);line-height:1;margin-bottom:12px;
}
.card-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;margin-top:6px}
.card-link i{transition:transform .22s ease}
.card-link:hover i{transform:translateX(4px)}

/* 图文交错 */
.alt-row{display:grid;gap:26px;align-items:center;padding:38px 0;border-bottom:1px solid var(--line)}
.alt-row:last-child{border-bottom:0}
@media(min-width:1024px){
  .alt-row{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;padding:52px 0}
  .alt-row.flip .alt-media{order:2}
  .alt-row.flip .alt-body{order:1}
}
.alt-media{position:relative}
.alt-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--r-img);
  box-shadow:var(--sh-card);
}
.alt-media .media-tag{
  position:absolute;left:14px;bottom:14px;
  background:rgba(5,8,15,.72);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;font-size:12px;color:var(--text-2);
}
.alt-body h3{margin-bottom:12px;font-size:22px}
.alt-body p{margin-bottom:14px}
.check-list{display:grid;gap:10px;margin:14px 0 18px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.check-list li i{color:var(--brand);font-size:13px;margin-top:7px;flex:0 0 14px}

/* 维度条 */
.dim-strip{display:grid;gap:16px}
@media(min-width:768px){.dim-strip{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.dim-strip{grid-template-columns:repeat(4,1fr)}}
.dim-item{
  position:relative;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 22px 22px 26px;
  transition:border-color .24s ease,transform .24s ease;
}
.dim-item::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:2px;
  background:var(--brand);opacity:0;border-radius:2px;transition:opacity .24s ease;
}
.dim-item:hover{transform:translateY(-3px);border-color:rgba(46,230,200,.32)}
.dim-item:hover::before{opacity:1}
.dim-item h4{font-size:16px;margin-bottom:8px;color:var(--text-1)}
.dim-item p{font-size:14.5px;color:var(--text-2);margin:0}

/* 数据条 */
.stat-band{
  display:grid;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-big);overflow:hidden;
}
@media(min-width:768px){.stat-band{grid-template-columns:repeat(3,1fr)}}
.stat-cell{background:var(--bg-800);padding:30px 26px}
.stat-cell b{
  display:block;font-family:'Space Grotesk','Sora',sans-serif;
  font-size:38px;font-weight:700;color:var(--spark);line-height:1.1;margin-bottom:8px;
}
.stat-cell span{font-size:14px;color:var(--text-2)}

/* 场景卡 */
.scene-card{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--sh-card)}
.scene-card i.scene-ico{font-size:20px;color:var(--brand);margin-bottom:14px;display:block}
.scene-card h3{font-size:18px;margin-bottom:8px}
.scene-card p{font-size:14.5px;margin:0;color:var(--text-2)}

/* 流程步骤 */
.steps{display:grid;gap:20px}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,1fr)}}
.step{
  position:relative;padding:26px 24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
}
.step b.step-no{
  font-family:'Space Grotesk','Sora',sans-serif;font-size:13px;letter-spacing:.14em;
  color:var(--brand);display:block;margin-bottom:12px;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14.5px;margin:0}

/* FAQ */
.faq-wrap{max-width:860px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;transition:border-color .24s ease;
}
.faq-item.open{border-color:rgba(46,230,200,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;color:var(--text-1);
  font-size:16px;font-weight:600;text-align:left;padding:20px 20px 20px 24px;cursor:pointer;
}
.faq-q .faq-ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:12px;
  transition:transform .28s ease,color .24s ease,border-color .24s ease;
}
.faq-item.open .faq-ico{transform:rotate(45deg);color:var(--brand);border-color:rgba(46,230,200,.5)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .34s ease;
}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{
  padding:0 24px 22px 26px;font-size:15px;line-height:1.8;color:var(--text-2);
  border-left:2px solid var(--brand);margin-left:24px;padding-left:18px;
}
.faq-a-inner p:last-child{margin-bottom:0}

/* 相关入口卡 */
.entry-grid{display:grid;gap:20px}
@media(min-width:640px){.entry-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.entry-grid{grid-template-columns:repeat(4,1fr)}}
.entry-card{
  display:block;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;color:var(--text-2);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--sh-card);color:var(--text-2)}
.entry-card h4{font-size:16px;margin-bottom:8px;color:var(--text-1)}
.entry-card p{font-size:14px;margin:0 0 12px;color:var(--text-2)}
.entry-card .go{font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.entry-card .go i{transition:transform .22s ease}
.entry-card:hover .go i{transform:translateX(4px)}

/* CTA 表单区 */
.cta-panel{
  position:relative;border:1px solid var(--line);border-radius:var(--r-big);
  background:
    radial-gradient(600px 300px at 12% 0%,rgba(46,230,200,.10),transparent 70%),
    radial-gradient(520px 300px at 92% 100%,rgba(110,91,255,.10),transparent 70%),
    var(--bg-800);
  padding:34px 24px;overflow:hidden;
}
@media(min-width:768px){.cta-panel{padding:48px 44px}}
.cta-grid{display:grid;gap:34px}
@media(min-width:1024px){.cta-grid{grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:56px}}
.form-grid{display:grid;gap:16px}
@media(min-width:640px){.form-grid{grid-template-columns:repeat(2,1fr)}.form-grid .full{grid-column:1/-1}}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:7px;font-weight:500}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-700);border:1px solid var(--line);
  border-radius:var(--r-input);padding:12px 15px;color:var(--text-1);
  font-size:15px;font-family:inherit;outline:none;transition:border-color .22s ease,box-shadow .22s ease;
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,230,200,.15);
}
.form-note{font-size:12px;color:var(--text-3);margin-top:12px;line-height:1.7}
.form-alert{
  display:none;margin-top:14px;padding:11px 16px;border-radius:12px;font-size:14px;
  border:1px solid rgba(46,230,200,.4);color:var(--brand);background:rgba(46,230,200,.08);
}
.form-alert.show{display:block}
.contact-list{display:grid;gap:16px;margin-top:22px}
.contact-item{display:flex;gap:14px;align-items:flex-start}
.contact-item .ci{
  flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--brand);font-size:14px;
}
.contact-item b{display:block;color:var(--text-1);font-size:15px;font-weight:600}
.contact-item span{font-size:14px;color:var(--text-2)}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:55;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 22px;border-radius:999px;
  background:linear-gradient(135deg,#FF8B57,#FF6A2E);color:#160B04;font-weight:600;font-size:14.5px;
  box-shadow:var(--sh-glow-orange);
  transform:translateY(140%);opacity:0;transition:transform .3s ease,opacity .3s ease,filter .24s ease;
}
.float-cta.show{transform:translateY(0);opacity:1}
.float-cta:hover{color:#160B04;filter:brightness(1.08)}
@media(max-width:767px){
  .float-cta{
    right:16px;left:16px;bottom:16px;justify-content:center;
    height:56px;border-radius:14px;padding:0;
  }
}

/* Footer */
.site-footer{position:relative;background:var(--bg-800);border-top:1px solid var(--line);margin-top:20px;overflow:hidden}
.footer-arc{
  position:absolute;left:-160px;top:-220px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(46,230,200,.12);pointer-events:none;
}
.footer-grid{display:grid;gap:32px;padding:56px 0 40px;position:relative;z-index:1}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,3fr));gap:44px}}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col li a,.footer-col li span{font-size:14px;color:var(--text-3)}
.footer-col li a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  position:relative;z-index:1;
}
.footer-bottom p{font-size:13px;color:var(--text-3);margin:0}
.to-top{font-size:13px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px}
.to-top:hover{color:var(--brand)}

@media(max-width:520px){
  .hero-stats{gap:22px}
  .hero-stat b{font-size:25px}
  .alt-row{padding:30px 0}
  .stat-cell{padding:24px 20px}
  .stat-cell b{font-size:30px}
}

/* roulang page: article */
:root{
    --bg-900:#05080F;
    --bg-800:#0A1120;
    --bg-700:#101A2C;
    --glass:rgba(255,255,255,.055);
    --glass-strong:rgba(255,255,255,.075);
    --line:rgba(255,255,255,.085);
    --brand:#2EE6C8;
    --brand-deep:#12A88F;
    --violet:#6E5BFF;
    --spark:#FF7A45;
    --text-1:#EAF1FF;
    --text-2:#A9B8D0;
    --text-3:#6F8099;
    --r-card:18px;
    --r-lg:24px;
    --r-img:14px;
    --r-input:12px;
    --sh-card:0 18px 48px rgba(2,6,16,.55);
    --sh-glow-cyan:0 10px 30px rgba(46,230,200,.28);
    --sh-glow-orange:0 12px 34px rgba(255,122,69,.32);
    --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    --latin:"Sora","PingFang SC",system-ui,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}

  html{scroll-behavior:smooth;scroll-padding-top:96px;}

  body{
    margin:0;
    background-color:var(--bg-900);
    color:var(--text-2);
    font-family:var(--sans);
    font-size:16.5px;
    line-height:1.85;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  .page-bg{
    position:fixed;
    inset:0;
    z-index:-1;
    pointer-events:none;
    background:
      radial-gradient(920px 540px at 10% -10%, rgba(46,230,200,.09), transparent 68%),
      radial-gradient(780px 520px at 94% 2%, rgba(110,91,255,.07), transparent 70%),
      linear-gradient(180deg,#05080F 0%,#070B14 60%,#05080F 100%);
  }
  .page-bg::after{
    content:"";
    position:absolute;
    inset:0;
    opacity:.55;
    background-image:
      linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size:64px 64px;
    -webkit-mask-image:radial-gradient(1100px 620px at 50% 0%, #000 20%, transparent 78%);
    mask-image:radial-gradient(1100px 620px at 50% 0%, #000 20%, transparent 78%);
  }

  img{max-width:100%;height:auto;display:block;}
  a{color:var(--brand);text-decoration:none;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 32px;
  }

  .accent{color:var(--spark);font-family:var(--latin);font-weight:700;}
  .muted{color:var(--text-3);}

  /* ============ HEADER ============ */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:60;
    height:64px;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  }
  .site-header.scrolled{
    background:rgba(5,8,15,.76);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom-color:var(--line);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:64px;
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:var(--text-1);
    font-size:17px;
    font-weight:700;
    letter-spacing:.01em;
    white-space:nowrap;
  }
  .brand-mark{
    width:34px;height:34px;
    display:grid;place-items:center;
    border-radius:10px;
    color:#04120F;
    font-size:15px;
    background:linear-gradient(135deg,var(--brand),var(--brand-deep));
    box-shadow:var(--sh-glow-cyan);
  }
  .nav-links{display:flex;align-items:center;gap:28px;}
  .nav-link{
    position:relative;
    padding:6px 0;
    color:var(--text-2);
    font-size:15px;
    font-weight:500;
    transition:color .2s ease;
  }
  .nav-link:hover{color:var(--text-1);}
  .nav-link.active{color:var(--brand);}
  .nav-link.active::after{
    content:"";
    position:absolute;left:0;right:0;bottom:-5px;
    height:2px;border-radius:2px;
    background:var(--brand);
    box-shadow:0 0 10px rgba(46,230,200,.75);
  }
  .nav-right{display:flex;align-items:center;gap:12px;}
  .icon-btn{
    width:38px;height:38px;
    display:grid;place-items:center;
    border-radius:999px;
    border:1px solid var(--line);
    background:var(--glass);
    color:var(--text-2);
    cursor:pointer;
    transition:.22s ease;
  }
  .icon-btn:hover{color:var(--brand);border-color:rgba(46,230,200,.45);box-shadow:var(--sh-glow-cyan);}
  .menu-btn{display:none;}
  .nav-cta{padding:10px 20px;font-size:14.5px;}

  .search-layer{
    position:fixed;
    left:0;right:0;top:64px;
    padding:20px 0 24px;
    background:rgba(5,8,15,.94);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    transform:translateY(-14px);
    opacity:0;
    visibility:hidden;
    transition:.25s ease;
  }
  .search-layer.open{transform:none;opacity:1;visibility:visible;}
  .search-box{
    display:flex;align-items:center;gap:12px;
    background:var(--bg-700);
    border:1px solid var(--line);
    border-radius:999px;
    padding:10px 18px;
  }
  .search-box input{
    flex:1;background:transparent;border:0;outline:none;
    color:var(--text-1);padding:6px 0;
  }
  .search-box input::placeholder{color:var(--text-3);}

  .drawer-mask{
    position:fixed;inset:0;z-index:70;
    background:rgba(0,0,0,.6);
    opacity:0;visibility:hidden;transition:.28s ease;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;z-index:71;
    width:84%;
    max-width:360px;
    padding:22px 22px 28px;
    background:rgba(10,17,32,.94);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border-left:1px solid var(--line);
    transform:translateX(102%);
    transition:transform .3s ease;
    display:flex;flex-direction:column;gap:6px;
  }
  .drawer.open{transform:none;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
  .drawer a.drawer-link{
    padding:13px 4px;
    color:var(--text-2);
    font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .drawer a.drawer-link:hover{color:var(--brand);}
  .drawer-foot{margin-top:auto;padding-top:18px;}

  /* ============ BUTTONS / BADGES ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border-radius:999px;
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:transform .18s ease, box-shadow .25s ease, filter .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  }
  .btn:active{transform:scale(.985);}
  .btn-spark{
    background:linear-gradient(135deg,#FF925F,var(--spark));
    color:#200A02;
    box-shadow:var(--sh-glow-orange);
  }
  .btn-spark:hover{filter:brightness(1.08);box-shadow:0 14px 40px rgba(255,122,69,.42);}
  .btn-ghost{
    background:var(--glass);
    border-color:rgba(46,230,200,.45);
    color:var(--brand);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
  }
  .btn-ghost:hover{border-color:var(--brand);box-shadow:var(--sh-glow-cyan);}
  .btn-line{background:transparent;border-color:var(--line);color:var(--text-2);}
  .btn-line:hover{border-color:rgba(46,230,200,.45);color:var(--brand);}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;
    border-radius:999px;
    border:1px solid rgba(46,230,200,.4);
    color:var(--brand);
    font-size:12px;
    letter-spacing:.04em;
    background:rgba(46,230,200,.06);
  }
  .badge-solid{
    border-color:transparent;
    background:linear-gradient(135deg,#FF925F,var(--spark));
    color:#200A02;
    font-weight:700;
  }
  .eyebrow{
    font-family:var(--latin);
    font-size:12px;
    font-weight:600;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--brand);
  }

  /* ============ POST HERO ============ */
  .post-hero{
    position:relative;
    padding:calc(64px + 56px) 0 44px;
    overflow:hidden;
  }
  .post-hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center 30%;
    opacity:.3;
  }
  .post-hero-bg::before{
    content:"";
    position:absolute;inset:0;
    background:rgba(46,230,200,.07);
  }
  .post-hero-bg::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(5,8,15,.55) 0%, rgba(5,8,15,.9) 62%, #05080F 100%);
  }
  .post-hero-inner{position:relative;z-index:2;max-width:900px;}

  .crumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px;
    font-size:13px;color:var(--text-3);
    margin-bottom:22px;
  }
  .crumb a{color:var(--text-3);}
  .crumb a:hover{color:var(--brand);}
  .crumb .sep{opacity:.5;}
  .crumb .current{color:var(--text-2);}

  .post-title{
    margin:16px 0 0;
    color:var(--text-1);
    font-size:clamp(26px,4vw,42px);
    line-height:1.22;
    font-weight:800;
    letter-spacing:.005em;
  }
  .post-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:14px;
    margin-top:20px;
    font-size:13px;
    line-height:1.7;
    color:var(--text-3);
  }
  .post-meta span{display:inline-flex;align-items:center;gap:6px;}
  .post-meta .divider{width:1px;height:12px;background:var(--line);}

  /* ============ ARTICLE LAYOUT ============ */
  .article-wrap{
    display:grid;
    grid-template-columns:minmax(0,1fr) 250px;
    gap:56px;
    align-items:start;
    padding:56px 0 96px;
  }
  .post-main{min-width:0;max-width:820px;}
  .post-toc{position:sticky;top:96px;}
  .toc-card{
    padding:22px;
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:var(--glass);
    box-shadow:var(--sh-card);
  }
  .toc-card h4{
    margin:0 0 14px;
    font-size:14px;
    font-weight:600;
    color:var(--text-1);
    letter-spacing:.06em;
  }
  .toc-card ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
  .toc-card li a{
    display:block;
    padding:7px 10px;
    border-radius:8px;
    font-size:13.5px;
    color:var(--text-3);
    line-height:1.6;
    transition:.2s ease;
  }
  .toc-card li a:hover{color:var(--brand);background:rgba(46,230,200,.07);}

  .post-body{
    color:var(--text-2);
    font-size:16.5px;
    line-height:1.88;
  }
  .post-body > *:first-child{margin-top:0;}
  .post-body p{margin:0 0 22px;}
  .post-body h2{
    margin:56px 0 22px;
    padding-left:14px;
    border-left:3px solid var(--brand);
    color:var(--text-1);
    font-size:clamp(21px,2.4vw,26px);
    line-height:1.35;
    font-weight:700;
  }
  .post-body h3{
    margin:38px 0 16px;
    color:var(--text-1);
    font-size:20px;
    line-height:1.4;
    font-weight:600;
  }
  .post-body h4{
    margin:28px 0 12px;
    color:var(--text-1);
    font-size:17px;
    font-weight:600;
  }
  .post-body a{
    color:var(--brand);
    border-bottom:1px dashed rgba(46,230,200,.55);
  }
  .post-body a:hover{border-bottom-style:solid;}
  .post-body ul,.post-body ol{
    margin:0 0 24px;
    padding-left:22px;
  }
  .post-body li{margin-bottom:10px;}
  .post-body li::marker{color:var(--brand);}
  .post-body blockquote{
    margin:30px 0;
    padding:18px 22px;
    border-left:2px solid rgba(46,230,200,.6);
    border-radius:0 12px 12px 0;
    background:rgba(255,255,255,.045);
    color:var(--text-1);
  }
  .post-body blockquote p:last-child{margin-bottom:0;}
  .post-body img{
    width:100%;
    height:auto;
    border-radius:var(--r-img);
    border:1px solid var(--line);
    margin:28px 0 10px;
  }
  .post-body figure{margin:28px 0;}
  .post-body figcaption{
    margin-top:10px;
    font-size:13px;
    color:var(--text-3);
    text-align:center;
  }
  .post-body table{
    width:100%;
    border-collapse:collapse;
    margin:26px 0;
    font-size:15px;
    display:block;
    overflow-x:auto;
    white-space:nowrap;
  }
  .post-body thead th{
    background:rgba(255,255,255,.06);
    color:var(--text-1);
    font-weight:600;
  }
  .post-body th,.post-body td{
    padding:12px 16px;
    border:1px solid var(--line);
    text-align:left;
  }
  .post-body code{
    background:rgba(255,255,255,.07);
    border-radius:6px;
    padding:2px 6px;
    font-size:14px;
    color:var(--brand);
  }
  .post-body hr{
    margin:44px 0;
    border:0;
    border-top:1px solid var(--line);
  }

  .empty-state{
    padding:60px 28px;
    text-align:center;
    border-radius:var(--r-lg);
    border:1px solid var(--line);
    background:var(--glass);
    box-shadow:var(--sh-card);
  }
  .empty-state i{font-size:34px;color:var(--brand);}
  .empty-state p{margin:16px 0 6px;color:var(--text-1);font-size:19px;font-weight:600;}
  .empty-state .muted{margin-bottom:22px;font-size:14px;font-weight:400;}

  /* ============ POST FOOT ============ */
  .tag-row{
    display:flex;flex-wrap:wrap;gap:10px;
    margin:44px 0 0;
    padding-top:28px;
    border-top:1px solid var(--line);
  }
  .tag{
    padding:6px 14px;
    border-radius:999px;
    border:1px solid var(--line);
    background:var(--glass);
    font-size:13px;
    color:var(--text-2);
    transition:.2s ease;
  }
  .tag:hover{border-color:rgba(46,230,200,.45);color:var(--brand);}

  .back-row{margin-top:32px;}

  /* ============ SECTIONS ============ */
  .section{padding:96px 0;}
  .section-alt{background:var(--bg-800);}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:28px;
    margin-bottom:40px;
    flex-wrap:wrap;
  }
  .section-title{
    margin:12px 0 0;
    color:var(--text-1);
    font-size:clamp(24px,3vw,34px);
    line-height:1.25;
    font-weight:700;
  }
  .section-sub{margin:12px 0 0;max-width:640px;font-size:15.5px;}
  .text-link{
    display:inline-flex;align-items:center;gap:8px;
    color:var(--brand);font-size:14.5px;font-weight:600;
  }
  .text-link i{transition:transform .2s ease;}
  .text-link:hover i{transform:translateX(4px);}

  .related-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .card{
    display:flex;
    flex-direction:column;
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:var(--glass);
    box-shadow:var(--sh-card);
    overflow:hidden;
    transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  }
  .card:hover{
    transform:translateY(-4px);
    border-color:rgba(46,230,200,.35);
    box-shadow:0 24px 56px rgba(2,6,16,.65);
  }
  .card-media{
    position:relative;
    aspect-ratio:16/10;
    overflow:hidden;
    background:var(--bg-700);
  }
  .card-media img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .4s ease;
  }
  .card:hover .card-media img{transform:scale(1.04);}
  .card-media::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(5,8,15,.05), rgba(5,8,15,.45));
  }
  .card-media .badge{position:absolute;left:14px;top:14px;z-index:2;}
  .card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .card-title{
    margin:0;
    color:var(--text-1);
    font-size:18px;
    line-height:1.45;
    font-weight:600;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .card-text{
    margin:0;
    font-size:14.5px;
    line-height:1.75;
    color:var(--text-2);
    display:-webkit-box;
    -webkit-line-clamp:3;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .card-foot{
    margin-top:auto;
    padding-top:14px;
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--text-3);
  }
  .card-foot .arrow{color:var(--text-3);transition:.22s ease;}
  .card:hover .card-foot .arrow{color:var(--brand);transform:translateX(4px);}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
  .faq-item{
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:var(--glass);
    overflow:hidden;
    transition:border-color .25s ease;
  }
  .faq-item.open{border-color:rgba(46,230,200,.35);}
  .faq-q{
    width:100%;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 22px;
    background:transparent;
    border:0;
    text-align:left;
    color:var(--text-1);
    font-size:16px;
    font-weight:600;
    line-height:1.6;
    cursor:pointer;
  }
  .faq-q i{
    color:var(--text-3);
    transition:transform .28s ease, color .25s ease;
    flex-shrink:0;
  }
  .faq-item.open .faq-q i{transform:rotate(45deg);color:var(--brand);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .32s ease;
  }
  .faq-a-inner{
    padding:0 22px 22px 24px;
    border-left:2px solid var(--brand);
    margin-left:22px;
    padding-left:18px;
    font-size:15px;
    line-height:1.8;
    color:var(--text-2);
  }

  /* ============ CTA / FORM ============ */
  .cta-panel{
    position:relative;
    border-radius:var(--r-lg);
    border:1px solid var(--line);
    background:var(--glass);
    overflow:hidden;
    box-shadow:var(--sh-card);
  }
  .cta-panel-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;
    background-position:center;
    opacity:.16;
  }
  .cta-panel-bg::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(120deg, rgba(5,8,15,.9), rgba(10,17,32,.72));
  }
  .cta-inner{
    position:relative;z-index:2;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:48px;
    padding:52px;
  }
  .cta-title{
    margin:14px 0 0;
    color:var(--text-1);
    font-size:clamp(23px,2.8vw,30px);
    line-height:1.3;
    font-weight:700;
  }
  .contact-list{list-style:none;margin:26px 0 0;padding:0;display:flex;flex-direction:column;gap:14px;}
  .contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;}
  .contact-list i{color:var(--brand);margin-top:5px;}

  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .field{display:flex;flex-direction:column;gap:8px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:13.5px;color:var(--text-3);}
  .field input,.field select,.field textarea{
    width:100%;
    padding:12px 14px;
    border-radius:var(--r-input);
    border:1px solid var(--line);
    background:var(--bg-700);
    color:var(--text-1);
    outline:none;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .field textarea{min-height:96px;resize:vertical;}
  .field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
  .field input:focus,.field select:focus,.field textarea:focus{
    border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(46,230,200,.15);
  }
  .form-note{margin:14px 0 0;font-size:12px;color:var(--text-3);}
  .form-status{
    display:none;
    margin-top:14px;
    padding:10px 14px;
    border-radius:10px;
    font-size:13.5px;
    border:1px solid rgba(46,230,200,.4);
    background:rgba(46,230,200,.08);
    color:var(--brand);
  }
  .form-status.show{display:block;}

  /* ============ FOOTER ============ */
  .site-footer{
    position:relative;
    margin-top:20px;
    padding:72px 0 28px;
    border-top:1px solid var(--line);
    background:linear-gradient(180deg, rgba(10,17,32,.65), rgba(5,8,15,.95));
    overflow:hidden;
  }
  .footer-arc{
    position:absolute;
    left:50%;top:-260px;
    width:900px;height:900px;
    transform:translateX(-50%);
    border-radius:50%;
    border:1px solid rgba(46,230,200,.14);
    pointer-events:none;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:40px;
  }
  .footer-brand p{margin:16px 0 0;font-size:14px;line-height:1.85;color:var(--text-3);max-width:320px;}
  .footer-col h4{
    margin:0 0 18px;
    font-size:14px;
    font-weight:600;
    color:var(--text-1);
    letter-spacing:.04em;
  }
  .footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
  .footer-col li a,.footer-col li span{font-size:14px;color:var(--text-3);}
  .footer-col li a:hover{color:var(--brand);}
  .footer-bottom{
    margin-top:56px;
    padding-top:22px;
    border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--text-3);
  }
  .to-top{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;color:var(--text-2);
  }
  .to-top:hover{color:var(--brand);}

  /* ============ FLOAT CTA ============ */
  .float-cta{
    position:fixed;
    right:24px;bottom:24px;
    z-index:55;
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 22px;
    border-radius:999px;
    background:linear-gradient(135deg,#FF925F,var(--spark));
    color:#200A02;
    font-size:14.5px;
    font-weight:700;
    box-shadow:var(--sh-glow-orange);
    transform:translateY(18px);
    opacity:0;
    visibility:hidden;
    transition:.28s ease;
  }
  .float-cta.show{transform:none;opacity:1;visibility:visible;}
  .float-cta:hover{filter:brightness(1.07);}

  /* ============ RESPONSIVE ============ */
  @media (max-width:1280px){
    .article-wrap{gap:40px;}
  }
  @media (max-width:1024px){
    .nav-links{display:none;}
    .menu-btn{display:grid;}
    .article-wrap{grid-template-columns:minmax(0,1fr);}
    .post-toc{display:none;}
    .post-main{max-width:none;}
    .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .cta-inner{grid-template-columns:1fr;gap:36px;padding:40px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  }
  @media (max-width:768px){
    body{font-size:16px;line-height:1.82;}
    .container{padding:0 20px;}
    .section{padding:72px 0;}
    .post-hero{padding:calc(56px + 36px) 0 32px;}
    .article-wrap{padding:36px 0 72px;}
    .related-grid{grid-template-columns:1fr;}
    .cta-inner{padding:28px;}
    .form-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:30px;}
    .nav-cta{display:none;}
    .float-cta{
      right:0;left:0;bottom:0;
      width:100%;
      border-radius:0;
      height:56px;
      justify-content:center;
    }
    .site-footer{padding-bottom:80px;}
    .header-inner{height:56px;}
    .site-header{height:56px;}
    .search-layer{top:56px;}
  }
  @media (max-width:520px){
    .post-title{font-size:26px;}
    .post-body{font-size:16px;}
    .post-body h2{font-size:21px;}
    .post-body h3{font-size:18.5px;}
    .badge{font-size:11.5px;}
  }

/* roulang page: category3 */
:root{
  --bg-900:#05080F;
  --bg-800:#0A1120;
  --bg-700:#101A2C;
  --glass:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.085);
  --brand:#2EE6C8;
  --brand-deep:#12A88F;
  --violet:#6E5BFF;
  --spark:#FF7A45;
  --text-1:#EAF1FF;
  --text-2:#A9B8D0;
  --text-3:#6F8099;
  --sh-card:0 18px 48px rgba(2,6,16,.55);
  --sh-glow-cyan:0 10px 30px rgba(46,230,200,.28);
  --sh-glow-orange:0 12px 34px rgba(255,122,69,.32);
  --r-card:18px;
  --r-lg:24px;
  --r-img:14px;
  --font-latin:'Space Grotesk','PingFang SC','Microsoft YaHei',sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body.page-body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-2);
  font-family:'PingFang SC','HarmonyOS Sans SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.page-body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(46,230,200,.08), transparent 62%),
    radial-gradient(760px 480px at 92% 8%, rgba(110,91,255,.07), transparent 64%),
    linear-gradient(rgba(255,255,255,.017) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.017) 1px, transparent 1px);
  background-size:auto,auto,72px 72px,72px 72px;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:#7ff3de;}
h1,h2,h3,h4{margin:0;color:var(--text-1);letter-spacing:.005em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{max-width:1240px;margin:0 auto;padding:0 32px;position:relative;z-index:2;}
.section{padding:96px 0;position:relative;z-index:2;}
.section.tight{padding:72px 0;}
.band{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.eyebrow{
  font-family:var(--font-latin);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--brand),transparent);}
.h1{
  font-size:52px;
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.h2{
  font-size:34px;
  line-height:1.25;
  font-weight:700;
  margin-bottom:16px;
}
.h3{
  font-size:21px;
  line-height:1.35;
  font-weight:600;
  margin-bottom:10px;
}
.lead{font-size:17px;color:var(--text-2);max-width:820px;}
.small{font-size:13px;line-height:1.7;color:var(--text-3);}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:44px;}
.section-head .texts{max-width:720px;}
.link-more{
  font-size:14px;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
  border-bottom:1px dashed rgba(46,230,200,.45);
  padding-bottom:2px;
}
.link-more:hover{border-bottom-style:solid;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  transition:transform .2s ease, box-shadow .25s ease, filter .2s ease, background .2s ease, border-color .2s ease;
  will-change:transform;
}
.btn-primary{
  background:linear-gradient(135deg,#FF8C5C,var(--spark));
  color:#1B0D06;
  box-shadow:var(--sh-glow-orange);
}
.btn-primary:hover{color:#1B0D06;filter:brightness(1.08);box-shadow:0 14px 40px rgba(255,122,69,.42);}
.btn-ghost{
  background:var(--glass);
  border:1px solid rgba(46,230,200,.4);
  color:var(--brand);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{background:rgba(46,230,200,.1);color:#8df6e5;border-color:rgba(46,230,200,.7);}
.btn-mini{height:42px;padding:0 20px;font-size:14px;}
.btn:active{transform:scale(.985);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  line-height:1;
  padding:7px 12px;
  border-radius:999px;
  border:1px solid rgba(46,230,200,.4);
  color:var(--brand);
  background:rgba(46,230,200,.06);
  letter-spacing:.04em;
}
.badge-hot{
  border-color:transparent;
  background:var(--spark);
  color:#1B0D06;
  font-weight:700;
}
.badge-violet{border-color:rgba(110,91,255,.45);color:#B4AAFF;background:rgba(110,91,255,.09);}

/* 导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  height:64px;
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(6,10,20,.78);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.nav-left{display:flex;align-items:center;gap:34px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-latin);
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.01em;
}
.brand:hover{color:#fff;}
.brand-mark{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(46,230,200,.22),rgba(110,91,255,.22));
  border:1px solid rgba(46,230,200,.4);
  color:var(--brand);
  font-size:14px;
  box-shadow:0 0 18px rgba(46,230,200,.18);
}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  position:relative;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(46,230,200,.2));
  box-shadow:0 0 10px rgba(46,230,200,.6);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.nav-right{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;
  border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(46,230,200,.45);background:rgba(46,230,200,.08);}
.nav-cta{height:42px;padding:0 20px;font-size:14px;}
.burger{display:none;}
.nav-mask{
  position:fixed;inset:0;background:rgba(3,6,14,.6);
  opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:70;
}
.nav-mask.open{opacity:1;pointer-events:auto;}

/* 搜索层 */
.search-layer{
  position:fixed;top:64px;left:0;right:0;z-index:79;
  background:rgba(6,10,20,.92);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transform:translateY(-14px);
  opacity:0;pointer-events:none;
  transition:opacity .25s ease, transform .25s ease;
}
.search-layer.open{opacity:1;transform:translateY(0);pointer-events:auto;}
.search-inner{max-width:1240px;margin:0 auto;padding:18px 32px;display:flex;gap:12px;align-items:center;}
.search-inner input{
  flex:1;height:48px;border-radius:12px;
  background:var(--bg-700);
  border:1px solid var(--line);
  color:var(--text-1);
  padding:0 18px;font-size:15px;
}
.search-inner input::placeholder{color:var(--text-3);}
.search-inner input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,230,200,.15);}

/* 页头带 */
.page-hero{
  position:relative;
  padding:calc(64px + 24px) 0 0;
  z-index:2;
}
.hero-strip{
  position:relative;
  min-height:300px;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  background-image:linear-gradient(90deg, rgba(46,230,200,.06), rgba(46,230,200,.06)), url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  display:flex;
  align-items:flex-end;
}
.hero-strip::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(5,8,15,.45) 0%, rgba(5,8,15,.86) 62%, rgba(5,8,15,.96) 100%);
}
.hero-strip-inner{position:relative;z-index:3;padding:44px 44px 40px;width:100%;}
.hero-top-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:18px;}
.breadcrumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .current{color:var(--brand);}
.hero-strip .h1{font-size:46px;max-width:900px;margin-bottom:16px;}
.hero-strip .lead{max-width:760px;color:#C6D3E6;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* 数据条 */
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  margin-top:34px;
}
.stat{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  backdrop-filter:blur(14px);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
}
.stat .num{
  font-family:var(--font-latin);
  font-size:34px;font-weight:700;
  color:var(--spark);
  line-height:1;
  display:block;
  margin-bottom:8px;
  letter-spacing:-.01em;
}
.stat .lab{font-size:13.5px;color:var(--text-3);}

/* 卡片通用 */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  backdrop-filter:blur(14px);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,230,200,.35);
  box-shadow:var(--sh-card);
}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card-num{
  font-family:var(--font-latin);
  font-size:30px;font-weight:700;
  color:rgba(46,230,200,.22);
  line-height:1;
  margin-bottom:14px;
  display:block;
}
.card p.comp{font-size:15px;color:var(--text-2);margin-bottom:16px;}
.card-line{height:1px;background:var(--line);margin:0 0 16px;}

/* 时间轴 */
.timeline{position:relative;padding-left:38px;}
.timeline::before{
  content:"";
  position:absolute;left:11px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg, rgba(46,230,200,.6), rgba(46,230,200,.12) 60%, rgba(110,91,255,.18));
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-38px;top:6px;
  width:23px;height:23px;border-radius:999px;
  background:var(--bg-900);
  border:1px solid rgba(46,230,200,.55);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-latin);
  font-size:10px;font-weight:700;color:var(--brand);
  box-shadow:0 0 14px rgba(46,230,200,.25);
}
.tl-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 28px;
  backdrop-filter:blur(14px);
  transition:border-color .25s ease, transform .25s ease;
}
.tl-card:hover{border-color:rgba(46,230,200,.35);transform:translateX(4px);}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:10px;}
.tl-step{
  font-family:var(--font-latin);
  font-size:13px;font-weight:700;
  letter-spacing:.14em;
  color:var(--spark);
}
.tl-card p{font-size:15.2px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* 负荷分布 */
.load-list{display:flex;flex-direction:column;gap:16px;}
.load-item{
  display:grid;
  grid-template-columns:120px 1fr 96px;
  align-items:center;
  gap:20px;
  padding:18px 22px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.028);
  transition:border-color .25s ease, background .25s ease;
}
.load-item:hover{border-color:rgba(46,230,200,.32);background:rgba(46,230,200,.045);}
.load-day{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--text-1);font-weight:600;}
.load-day i{color:var(--brand);font-size:13px;}
.load-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;}
.load-bar span{display:block;height:100%;border-radius:999px;}
.bar-low{background:linear-gradient(90deg, rgba(46,230,200,.4), rgba(46,230,200,.75));}
.bar-mid{background:linear-gradient(90deg, rgba(110,91,255,.45), rgba(110,91,255,.85));}
.bar-high{background:linear-gradient(90deg,#FFB07A,var(--spark));box-shadow:0 0 16px rgba(255,122,69,.4);}
.load-val{font-family:var(--font-latin);font-size:14px;color:var(--text-3);text-align:right;}

/* 场景卡 */
.scene-card{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--glass);
  backdrop-filter:blur(14px);
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--sh-card);}
.scene-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.scene-card:hover .scene-media img{transform:scale(1.04);}
.scene-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(46,230,200,.06), rgba(46,230,200,.06));
}
.scene-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.scene-body p{font-size:15px;}
.scene-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}

/* 检查清单 */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 26px;margin-top:26px;}
.check-list li{display:flex;gap:12px;font-size:15.2px;color:var(--text-2);}
.check-list i{color:var(--brand);margin-top:6px;font-size:12px;}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--glass);
  backdrop-filter:blur(14px);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item.open{border-color:rgba(46,230,200,.4);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:999px;
  border:1px solid rgba(46,230,200,.4);
  color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;
  transition:transform .28s ease, border-color .28s ease, color .28s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:var(--brand);color:#7ff3de;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-a-inner{
  padding:0 24px 22px 38px;
  position:relative;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.faq-a-inner::before{
  content:"";position:absolute;left:24px;top:4px;bottom:24px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(46,230,200,.15));
  border-radius:2px;
}

/* 表单 */
.cta-band{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(135deg, rgba(46,230,200,.07), rgba(110,91,255,.06)), var(--bg-800);
  padding:44px;
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:44px;
  box-shadow:var(--sh-card);
}
.contact-list{display:flex;flex-direction:column;gap:16px;margin-top:26px;}
.contact-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2);align-items:center;}
.contact-list i{color:var(--brand);width:18px;}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-3);letter-spacing:.02em;}
.field input,.field select,.field textarea{
  height:48px;
  border-radius:12px;
  background:var(--bg-700);
  border:1px solid var(--line);
  color:var(--text-1);
  padding:0 16px;
  font-size:15px;
  transition:border-color .2s ease, box-shadow .2s ease;
  width:100%;
}
.field textarea{height:104px;padding:14px 16px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(46,230,200,.15);
}
.form-foot{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px;}
.form-note{font-size:12px;color:var(--text-3);}
.form-msg{
  grid-column:1 / -1;
  display:none;
  font-size:14px;
  padding:12px 16px;
  border-radius:12px;
  border:1px solid rgba(46,230,200,.4);
  background:rgba(46,230,200,.08);
  color:#9bf3e3;
}
.form-msg.show{display:block;}

/* 相关入口 */
.entry-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.entry-card{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--glass);
  padding:22px;
  display:flex;flex-direction:column;gap:10px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--sh-card);}
.entry-card i{color:var(--brand);font-size:16px;}
.entry-card strong{color:var(--text-1);font-size:16px;font-weight:600;}
.entry-card span{font-size:13.5px;color:var(--text-3);line-height:1.7;}
.entry-card .arrow{margin-top:auto;color:var(--brand);font-size:13px;transition:transform .2s ease;}
.entry-card:hover .arrow{transform:translateX(4px);}

/* 浮动 CTA */
.float-cta{
  position:fixed;
  right:28px;bottom:28px;
  z-index:75;
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 24px;
  border-radius:999px;
  background:linear-gradient(135deg,#FF8C5C,var(--spark));
  color:#1B0D06;
  font-size:14.5px;font-weight:700;
  box-shadow:var(--sh-glow-orange);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .3s ease, transform .3s ease, filter .2s ease;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{color:#1B0D06;filter:brightness(1.08);}

/* 页脚 */
.site-footer{
  position:relative;
  background:var(--bg-800);
  border-top:1px solid var(--line);
  padding:72px 0 26px;
  overflow:hidden;
  z-index:2;
}
.footer-arc{
  position:absolute;
  top:-140px;right:-120px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(46,230,200,.13);
  pointer-events:none;
}
.footer-arc::after{
  content:"";
  position:absolute;inset:56px;
  border-radius:50%;
  border:1px solid rgba(110,91,255,.1);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:42px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:320px;}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text-1);
  margin-bottom:16px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li,.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}
.to-top{
  font-size:13px;color:var(--text-2);
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  transition:color .2s ease,border-color .2s ease;
}
.to-top:hover{color:var(--brand);border-color:rgba(46,230,200,.45);}

/* 响应式 */
@media (max-width:1280px){
  .h1{font-size:48px;}
  .hero-strip .h1{font-size:42px;}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .h1{font-size:40px;}
  .h2{font-size:28px;}
  .hero-strip .h1{font-size:36px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .nav-links{gap:20px;}
  .nav-link{font-size:14px;}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;
    top:0;right:0;bottom:0;
    width:84%;
    max-width:340px;
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
    padding:88px 26px 30px;
    background:rgba(8,13,24,.94);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(102%);
    transition:transform .32s ease;
    z-index:78;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-link{width:100%;padding:12px 0;font-size:16px;}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--brand);}
  .burger{display:inline-flex;}
  .nav-cta{display:none;}
}
@media (max-width:768px){
  body.page-body{font-size:16px;}
  .container{padding:0 20px;}
  .nav-inner{padding:0 20px;}
  .site-header{height:56px;}
  .search-layer{top:56px;}
  .section{padding:56px 0;}
  .h1{font-size:31px;}
  .h2{font-size:24px;}
  .h3{font-size:19px;}
  .hero-strip{min-height:280px;border-radius:var(--r-card);}
  .hero-strip-inner{padding:28px 22px 26px;}
  .hero-strip .h1{font-size:30px;}
  .stat-row{grid-template-columns:1fr;gap:14px;}
  .grid-3,.grid-2,.entry-grid,.check-list{grid-template-columns:1fr;}
  .load-item{grid-template-columns:1fr;gap:12px;align-items:flex-start;}
  .load-val{text-align:left;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .form-grid{grid-template-columns:1fr;}
  .timeline{padding-left:30px;}
  .tl-dot{left:-30px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .float-cta{
    left:0;right:0;bottom:0;
    height:56px;border-radius:0;
    justify-content:center;
    transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .site-footer{padding-bottom:76px;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .cta-band{padding:26px;}
  .card{padding:22px;}
  .tl-card{padding:22px;}
}

/* roulang page: category2 */
:root{
  --bg-900:#05080F;
  --bg-800:#0A1120;
  --bg-700:#101A2C;
  --glass:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.085);
  --brand:#2EE6C8;
  --brand-deep:#12A88F;
  --violet:#6E5BFF;
  --spark:#FF7A45;
  --text-1:#EAF1FF;
  --text-2:#A9B8D0;
  --text-3:#6F8099;
  --sh-card:0 18px 48px rgba(2,6,16,.55);
  --sh-glow-cyan:0 10px 30px rgba(46,230,200,.28);
  --sh-glow-orange:0 12px 34px rgba(255,122,69,.32);
  --latin:'Space Grotesk','Sora','Segoe UI',system-ui,sans-serif;
  --r-card:18px;
  --r-block:24px;
  --r-img:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
h1,h2,h3,h4{color:var(--text-1);margin:0;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(46,230,200,.28);color:#fff}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

.page-bg{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(760px 440px at 82% 4%, rgba(46,230,200,.085), transparent 68%),
    radial-gradient(640px 460px at 8% 34%, rgba(110,91,255,.06), transparent 70%);
}
.page-bg::after{content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.026) 1px, transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(1000px 600px at 70% 0%, #000 10%, transparent 78%);
  mask-image:radial-gradient(1000px 600px at 70% 0%, #000 10%, transparent 78%);
}
header,main,footer{position:relative;z-index:1}

/* ---------- skip link ---------- */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#03221C;padding:10px 18px;border-radius:0 0 12px 0;z-index:99}
.skip-link:focus{left:0}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;height:64px;z-index:60;
  background:transparent;transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(5,8,15,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom-color:var(--line)}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;font-size:17px;letter-spacing:.02em;text-decoration:none;white-space:nowrap}
.brand-mark{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:13px;color:#03221C;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));box-shadow:var(--sh-glow-cyan)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;display:inline-block;color:var(--text-2);font-size:15px;font-weight:500;padding:6px 0;transition:color .2s ease}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(46,230,200,.7)}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:var(--text-2);cursor:pointer;
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);transition:.22s}
.icon-btn:hover{color:var(--brand);border-color:rgba(46,230,200,.4);transform:translateY(-1px)}
.menu-btn{display:none;width:38px;height:38px;border-radius:12px;align-items:center;justify-content:center;color:var(--text-1);
  background:var(--glass);border:1px solid var(--line);cursor:pointer}
.search-layer{position:fixed;top:64px;left:0;right:0;z-index:55;padding:18px 0;
  background:rgba(5,8,15,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);
  transform:translateY(-14px);opacity:0;pointer-events:none;transition:.25s}
.search-layer.open{transform:translateY(0);opacity:1;pointer-events:auto}
.search-layer form{display:flex;gap:12px}
.search-layer input{flex:1;height:46px;border-radius:12px;padding:0 16px;font-size:15px;color:var(--text-1);
  background:var(--bg-700);border:1px solid var(--line)}
.search-layer input::placeholder{color:var(--text-3)}
.search-layer input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,230,200,.15)}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;pointer-events:none;transition:.3s;z-index:70}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;width:84%;max-width:360px;height:100%;z-index:80;
  background:rgba(10,17,32,.94);backdrop-filter:blur(18px);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:22px 22px 26px;gap:6px}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer a.drawer-link{color:var(--text-2);font-size:16px;font-weight:500;padding:13px 4px;border-bottom:1px solid rgba(255,255,255,.06)}
.drawer a.drawer-link.active{color:var(--brand)}
.drawer-cta{margin-top:auto;padding-top:20px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;
  font-size:15px;font-weight:600;padding:13px 28px;border:1px solid transparent;cursor:pointer;
  text-decoration:none;transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,background .2s ease,color .2s ease}
.btn:active{transform:scale(.985)}
.btn-spark{background:var(--spark);color:#1D0900;box-shadow:var(--sh-glow-orange)}
.btn-spark:hover{filter:brightness(1.08);box-shadow:0 16px 44px rgba(255,122,69,.45);transform:translateY(-2px)}
.btn-ghost{background:var(--glass);border-color:rgba(46,230,200,.42);color:var(--brand);backdrop-filter:blur(14px)}
.btn-ghost:hover{background:rgba(46,230,200,.1);border-color:var(--brand);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}

/* ---------- badges ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--latin);font-size:12px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--brand)}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;
  color:var(--brand);border:1px solid rgba(46,230,200,.38);background:rgba(46,230,200,.06);white-space:nowrap}
.badge-spark{background:var(--spark);color:#1D0900;border-color:transparent;font-weight:600}

/* ---------- page hero ---------- */
.page-hero{position:relative;margin-top:64px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center}
.page-hero-bg::after{content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(5,8,15,.95) 0%, rgba(5,8,15,.78) 44%, rgba(5,8,15,.44) 100%),
    linear-gradient(180deg, rgba(5,8,15,.6) 0%, rgba(5,8,15,.92) 100%),
    rgba(46,230,200,.06)}
.hero-inner{position:relative;z-index:2;padding:88px 32px 56px;max-width:1240px;margin:0 auto}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--text-2)}
.page-hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.16;max-width:880px;letter-spacing:.005em}
.hero-lead{margin-top:20px;max-width:660px;font-size:17px;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:42px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stat b{display:block;font-family:var(--latin);font-size:30px;font-weight:700;color:var(--spark);line-height:1.2}
.hero-stat span{font-size:13px;color:var(--text-3)}

/* ---------- sections ---------- */
.section{padding:80px 0;position:relative}
.section-alt{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;margin-top:10px}
.section-head p{max-width:620px;margin-top:12px;font-size:16px;color:var(--text-2)}
.text-link{color:var(--brand);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:.2s}
.text-link:hover{gap:12px}
.lead-text{max-width:820px;font-size:17px;color:var(--text-2)}

/* ---------- spec table ---------- */
.spec-wrap{border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  backdrop-filter:blur(14px);overflow:hidden;box-shadow:var(--sh-card)}
.spec-scroll{overflow-x:auto}
table.spec{width:100%;min-width:900px;border-collapse:collapse;font-size:15px}
.spec thead th{background:rgba(255,255,255,.05);color:var(--text-1);font-weight:600;font-size:14px;
  text-align:left;padding:16px 20px;white-space:nowrap;border-bottom:1px solid var(--line);letter-spacing:.02em}
.spec tbody td{padding:17px 20px;border-bottom:1px solid rgba(255,255,255,.05);vertical-align:top;color:var(--text-2)}
.spec tbody tr:last-child td{border-bottom:none}
.spec tbody tr{transition:background .2s}
.spec tbody tr:hover{background:rgba(46,230,200,.045)}
.spec .proj{color:var(--text-1);font-weight:600;white-space:nowrap}
.spec .num{font-family:var(--latin);color:var(--text-1);font-weight:500;white-space:nowrap}
.figcaption{font-size:13px;color:var(--text-3);margin-top:14px;line-height:1.7}

/* ---------- meters ---------- */
.meter-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
.meter-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);transition:.25s}
.meter-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--sh-card)}
.meter-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:16px}
.meter-head span{font-size:14px;color:var(--text-3)}
.meter-head strong{font-family:var(--latin);font-size:22px;color:var(--spark);font-weight:700}
.meter-track{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.meter-fill{display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--brand-deep),var(--brand));box-shadow:0 0 18px rgba(46,230,200,.4)}
.meter-note{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- compare table ---------- */
.compare-wrap{margin-top:36px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  backdrop-filter:blur(14px);overflow:hidden;box-shadow:var(--sh-card)}
table.compare{width:100%;min-width:760px;border-collapse:collapse;font-size:15px}
.compare thead th{padding:18px 20px;font-size:14px;font-weight:600;color:var(--text-1);text-align:center;
  background:rgba(255,255,255,.05);border-bottom:1px solid var(--line)}
.compare thead th:first-child{text-align:left}
.compare thead th.reco{color:var(--spark)}
.compare tbody td{padding:15px 20px;text-align:center;border-bottom:1px solid rgba(255,255,255,.05);transition:background .2s}
.compare tbody td:first-child{text-align:left;color:var(--text-2)}
.compare tbody tr:hover td{background:rgba(46,230,200,.045)}
.compare .yes{color:var(--brand);font-size:15px}
.compare .no{color:var(--text-3);opacity:.6}
.figure-block{margin-top:36px;display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center}
.figure-block img{border-radius:var(--r-img);border:1px solid var(--line);width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.figure-block h3{font-size:20px;font-weight:600;margin-bottom:12px}
.figure-block p{font-size:15.5px;color:var(--text-2)}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:36px}
.check-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  backdrop-filter:blur(14px);transition:.25s}
.check-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--sh-card)}
.check-card h3{font-size:18px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.check-card h3 i{color:var(--brand);font-size:15px}
.check-list li{position:relative;padding-left:22px;margin-bottom:11px;font-size:15px;color:var(--text-2);line-height:1.75}
.check-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(46,230,200,.6)}
.check-list li:last-child{margin-bottom:0}

/* ---------- faq ---------- */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;
  backdrop-filter:blur(14px);overflow:hidden;transition:.25s}
.faq-item:hover{border-color:rgba(46,230,200,.3)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;
  background:transparent;border:0;color:var(--text-1);font-size:16px;font-weight:600;padding:20px 24px;cursor:pointer;transition:.2s}
.faq-q:hover{color:var(--brand)}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:12px;
  color:var(--brand);border:1px solid rgba(46,230,200,.4);transition:transform .3s ease,background .3s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(46,230,200,.14)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a-inner{padding:0 24px 22px 24px;border-left:2px solid var(--brand);margin-left:24px;padding-left:18px;
  font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- CTA / form ---------- */
.cta-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
.form-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-block);padding:30px;
  backdrop-filter:blur(14px);box-shadow:var(--sh-card)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;border-radius:12px;padding:13px 15px;font-size:15px;
  color:var(--text-1);background:var(--bg-700);border:1px solid var(--line);font-family:inherit;transition:.2s}
.field textarea{min-height:110px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(46,230,200,.15)}
.privacy-note{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.7}
.form-msg{display:none;margin-top:16px;padding:12px 16px;border-radius:12px;font-size:14px;
  background:rgba(46,230,200,.12);border:1px solid rgba(46,230,200,.4);color:var(--brand)}
.form-msg.show{display:block}
.contact-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-block);padding:30px;backdrop-filter:blur(14px)}
.contact-card h3{font-size:20px;margin-bottom:18px}
.contact-list li{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px;font-size:15px;color:var(--text-2)}
.contact-list li i{color:var(--brand);margin-top:5px;width:16px;text-align:center}
.contact-list li:last-child{margin-bottom:0}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:36px}
.related-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  backdrop-filter:blur(14px);transition:.28s;display:flex;flex-direction:column}
.related-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.35);box-shadow:var(--sh-card)}
.related-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-bottom:1px solid var(--line)}
.related-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-body h3{font-size:17px;font-weight:600}
.related-body p{font-size:14px;color:var(--text-3);line-height:1.7;flex:1}
.related-body .go{font-size:13px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:7px;transition:.2s}
.related-card:hover .go{gap:11px}

/* ---------- floating cta ---------- */
.float-cta{position:fixed;right:26px;bottom:26px;z-index:50;display:inline-flex;align-items:center;gap:9px;
  padding:14px 24px;border-radius:999px;background:var(--spark);color:#1D0900;font-weight:700;font-size:15px;
  box-shadow:var(--sh-glow-orange);opacity:0;transform:translateY(16px);pointer-events:none;transition:.3s}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{filter:brightness(1.08);box-shadow:0 16px 44px rgba(255,122,69,.5)}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--bg-800);border-top:1px solid var(--line);padding:64px 0 0;overflow:hidden}
.footer-arc{position:absolute;top:-120px;right:-80px;width:460px;height:460px;border-radius:50%;
  border:1px solid rgba(46,230,200,.14);pointer-events:none}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;position:relative;z-index:2}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--text-3);line-height:1.8;max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:18px;color:var(--text-1)}
.footer-col li{margin-bottom:11px;font-size:14px;color:var(--text-3);line-height:1.7}
.footer-col a{color:var(--text-3);transition:.2s}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{margin-top:52px;padding:22px 0;border-top:1px solid var(--line);display:flex;
  align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;position:relative;z-index:2}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.to-top{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:8px;transition:.2s}
.to-top:hover{color:var(--brand);gap:12px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .menu-btn{display:flex}
  .meter-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .figure-block{grid-template-columns:1fr}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .hero-inner{padding:76px 20px 48px}
  .hero-stats{gap:28px}
  .hero-stat b{font-size:26px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .check-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .meter-grid{grid-template-columns:1fr}
  .float-cta{right:0;left:0;bottom:0;width:100%;height:56px;border-radius:0;justify-content:center;
    padding:0;font-size:15px;transform:translateY(100%)}
  .float-cta.show{transform:translateY(0)}
  .site-footer{padding-top:52px;padding-bottom:56px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .related-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .brand{font-size:16px}
  .page-hero h1{font-size:28px}
  .faq-q{font-size:15px;padding:18px}
  .faq-a-inner{margin-left:18px;padding-left:14px;padding-right:18px}
}

/* roulang page: category4 */
:root{
  --bg-900:#05080F;
  --bg-800:#0A1120;
  --bg-700:#101A2C;
  --glass:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.085);
  --brand:#2EE6C8;
  --brand-deep:#12A88F;
  --violet:#6E5BFF;
  --spark:#FF7A45;
  --text-1:#EAF1FF;
  --text-2:#A9B8D0;
  --text-3:#6F8099;
  --r-card:18px;
  --r-lg:24px;
  --r-img:14px;
  --r-input:12px;
  --sh-card:0 18px 48px rgba(2,6,16,.55);
  --sh-glow-cyan:0 10px 30px rgba(46,230,200,.28);
  --sh-glow-orange:0 12px 34px rgba(255,122,69,.32);
  --nav-h:64px;
  --font-latin:"Sora","Space Grotesk","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.7;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
h1,h2,h3,h4{color:var(--text-1);margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
input,textarea,select,button{font-family:inherit}
::selection{background:rgba(46,230,200,.28);color:#04110E}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}
.section{padding:96px 0;position:relative}
.section.alt{background:var(--bg-800)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-block;
  font-family:var(--font-latin);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand);
  margin-bottom:14px;
}
.section-head h2{font-size:34px;line-height:1.25;font-weight:700;margin-bottom:16px}
.section-head p{font-size:16px;color:var(--text-2);max-width:680px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:var(--nav-h);
  background:transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(5,8,15,.84);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:var(--nav-h);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text-1);font-weight:700;font-size:17px;letter-spacing:.01em;
  white-space:nowrap;
}
.brand-mark{
  width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(46,230,200,.18),rgba(110,91,255,.2));
  border:1px solid rgba(46,230,200,.4);
  color:var(--brand);font-size:13px;
  box-shadow:0 0 18px rgba(46,230,200,.18);
}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  color:var(--text-2);
  font-size:15px;font-weight:500;
  padding:6px 0;
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;
  background:var(--brand);border-radius:2px;
  box-shadow:0 0 12px rgba(46,230,200,.85);
}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text-2);
  cursor:pointer;font-size:14px;
  transition:.25s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(46,230,200,.45);box-shadow:var(--sh-glow-cyan)}
.menu-toggle{display:none}

.search-layer{
  background:rgba(10,17,32,.95);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:16px 0;
}
.search-layer[hidden]{display:none}
.search-form{
  display:flex;align-items:center;gap:14px;
  background:var(--bg-700);
  border:1px solid var(--line);
  border-radius:999px;
  padding:10px 12px 10px 22px;
  color:var(--text-3);
}
.search-form input{
  flex:1;background:transparent;border:0;color:var(--text-1);
  font-size:15px;outline:none;
}
.search-form input::placeholder{color:var(--text-3)}

.nav-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:.3s ease;z-index:85;
}
.nav-mask.show{opacity:1;visibility:visible}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  padding:13px 26px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,filter .25s ease,border-color .25s ease,color .25s ease,background .25s ease;
  text-align:center;
}
.btn:active{transform:scale(.985)}
.btn-spark{
  background:linear-gradient(135deg,#FF8F63,#FF6A33);
  color:#220C02;
  box-shadow:var(--sh-glow-orange);
}
.btn-spark:hover{filter:brightness(1.08);box-shadow:0 14px 42px rgba(255,122,69,.48)}
.btn-cyan{
  background:var(--glass);
  border-color:rgba(46,230,200,.45);
  color:var(--brand);
  backdrop-filter:blur(10px);
}
.btn-cyan:hover{border-color:var(--brand);box-shadow:var(--sh-glow-cyan)}
.btn-ghost{
  background:transparent;border-color:var(--line);color:var(--text-2);
}
.btn-ghost:hover{border-color:rgba(46,230,200,.5);color:var(--brand)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:calc(var(--nav-h) + 62px) 0 68px;
  overflow:hidden;
  background:var(--bg-800);
}
.page-hero-bg{position:absolute;inset:0;z-index:0}
.page-hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.34}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.6),rgba(5,8,15,.95)),rgba(46,230,200,.06);
}
.hero-arc{
  position:absolute;right:-140px;top:-80px;
  width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(46,230,200,.14);
  z-index:0;pointer-events:none;
}
.hero-arc::after{
  content:"";position:absolute;inset:70px;border-radius:50%;
  border:1px solid rgba(110,91,255,.12);
}
.page-hero-inner{position:relative;z-index:2;max-width:880px}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--text-2)}
.page-hero h1{
  font-size:50px;line-height:1.15;font-weight:800;letter-spacing:-.01em;
  margin-bottom:20px;
}
.page-hero .lead{font-size:17px;line-height:1.9;max-width:720px;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ---------- filter bar ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--glass);
  backdrop-filter:blur(14px);
  margin-bottom:32px;
}
.filter-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 20px;border-radius:999px;
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  cursor:pointer;transition:.22s ease;
  white-space:nowrap;
}
.filter-chip:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.filter-chip.is-active{
  color:var(--brand);
  border-color:rgba(46,230,200,.5);
  background:rgba(46,230,200,.08);
  box-shadow:0 0 18px rgba(46,230,200,.14);
}

/* ---------- venue grid ---------- */
.venue-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;
}
.venue-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.venue-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,230,200,.35);
  box-shadow:0 24px 58px rgba(2,6,16,.7);
}
.venue-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-700)}
.venue-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.venue-card:hover .venue-thumb img{transform:scale(1.05)}
.venue-badge{
  position:absolute;left:14px;top:14px;
  padding:5px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;
  background:rgba(5,8,15,.72);
  border:1px solid rgba(46,230,200,.45);
  color:var(--brand);
  backdrop-filter:blur(8px);
}
.venue-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.venue-body h3{font-size:20px;line-height:1.35;font-weight:600}
.venue-body p{font-size:15px;line-height:1.8;color:var(--text-2)}
.spec-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.spec-list li{
  display:flex;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--text-3);
  padding-bottom:8px;border-bottom:1px dashed rgba(255,255,255,.06);
}
.spec-list li:last-child{border-bottom:0;padding-bottom:0}
.spec-list strong{color:var(--text-2);font-weight:500}
.venue-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding:16px 22px 20px;
}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.text-link i{transition:transform .25s ease}
.text-link:hover i{transform:translateX(4px)}

/* ---------- feature rows ---------- */
.feature-row{
  display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;
  padding:36px 0;
}
.feature-row.reverse{grid-template-columns:7fr 5fr}
.feature-row.reverse .feature-media{order:2}
.feature-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/11;border:1px solid var(--line);
}
.feature-media img{width:100%;height:100%;object-fit:cover}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(46,230,200,.1),rgba(5,8,15,.5));
}
.feature-num{
  font-family:var(--font-latin);
  font-size:14px;letter-spacing:.16em;color:var(--spark);
  margin-bottom:12px;display:block;
}
.feature-text h3{font-size:24px;line-height:1.35;font-weight:600;margin-bottom:14px}
.feature-text p{font-size:16px;line-height:1.9;margin-bottom:12px}
.feature-text ul{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.feature-text ul li{
  position:relative;padding-left:22px;font-size:15px;color:var(--text-2);
}
.feature-text ul li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:rgba(46,230,200,.85);
  box-shadow:0 0 10px rgba(46,230,200,.6);
}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{
  position:relative;
  padding:26px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform .28s ease,border-color .28s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(46,230,200,.3)}
.step-card .num{
  font-family:var(--font-latin);font-size:32px;font-weight:800;
  color:rgba(255,255,255,.16);display:block;margin-bottom:14px;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.step-card p{font-size:14.5px;line-height:1.8;color:var(--text-2)}

/* ---------- stats strip ---------- */
.stats-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
  padding:32px;
  background:linear-gradient(120deg,rgba(46,230,200,.07),rgba(110,91,255,.06));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  margin-bottom:40px;
}
.stat-item .val{
  font-family:var(--font-latin);font-size:34px;font-weight:800;
  color:var(--spark);line-height:1.1;
}
.stat-item .lab{font-size:13.5px;color:var(--text-3);margin-top:6px}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item.open{border-color:rgba(46,230,200,.34)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;
  background:transparent;border:0;cursor:pointer;
  color:var(--text-1);font-size:16px;font-weight:600;line-height:1.6;text-align:left;
}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform .3s ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{top:7px;left:0;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{
  margin:0 22px 20px;padding-left:16px;
  border-left:2px solid rgba(46,230,200,.55);
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- cta / form ---------- */
.cta-panel{
  display:grid;grid-template-columns:7fr 5fr;gap:40px;
  padding:44px;
  background:linear-gradient(140deg,rgba(46,230,200,.07),rgba(110,91,255,.05));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-card);
}
.cta-panel h2{font-size:30px;line-height:1.3;font-weight:700;margin-bottom:14px}
.cta-panel > div > p{font-size:16px;margin-bottom:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--text-3)}
.field input,.field select,.field textarea{
  background:var(--bg-700);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:12px 14px;
  color:var(--text-1);font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field textarea{resize:vertical;min-height:96px}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(46,230,200,.15);
}
.field.full{grid-column:1 / -1}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px;line-height:1.7}
.contact-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  display:flex;flex-direction:column;gap:16px;
  align-self:start;
}
.contact-card h3{font-size:18px;font-weight:600}
.contact-card ul{display:flex;flex-direction:column;gap:14px}
.contact-card li{display:flex;gap:12px;font-size:14.5px;color:var(--text-2)}
.contact-card li i{color:var(--brand);margin-top:5px}

/* ---------- related entries ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.entry-card{
  display:flex;flex-direction:column;gap:14px;
  padding:22px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  color:var(--text-2);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,230,200,.35);
  box-shadow:0 22px 52px rgba(2,6,16,.6);
}
.entry-card i.ico{color:var(--brand);font-size:18px}
.entry-card h3{font-size:17px;font-weight:600;color:var(--text-1)}
.entry-card p{font-size:14px;line-height:1.75;color:var(--text-3)}
.entry-card .arrow{margin-top:auto;font-size:13px;color:var(--brand);display:inline-flex;align-items:center;gap:8px}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background:var(--bg-800);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  overflow:hidden;
  margin-top:0;
}
.footer-arc{
  position:absolute;left:-120px;bottom:-160px;
  width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(46,230,200,.1);
  pointer-events:none;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px;
  padding-bottom:44px;
  position:relative;z-index:1;
}
.footer-brand p{font-size:14px;color:var(--text-3);margin-top:16px;max-width:320px;line-height:1.8}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  position:relative;z-index:1;
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.to-top{
  font-size:13px;color:var(--text-2);
  display:inline-flex;align-items:center;gap:8px;
}
.to-top:hover{color:var(--brand)}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 22px;border-radius:999px;
  background:linear-gradient(135deg,#FF8F63,#FF6A33);
  color:#220C02;font-size:14px;font-weight:700;
  box-shadow:var(--sh-glow-orange);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{filter:brightness(1.07)}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .page-hero h1{font-size:44px}
  .venue-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .menu-toggle{display:grid}
  .nav-links{
    position:fixed;top:0;right:0;
    height:100vh;width:84%;max-width:340px;
    background:rgba(10,17,32,.94);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:4px;
    padding:84px 24px 32px;
    transform:translateX(100%);
    transition:transform .32s ease;
    z-index:90;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{width:100%;padding:14px 6px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link.active::after{display:none}
  .nav-link.active{color:var(--brand)}
  .page-hero h1{font-size:36px}
  .section-head h2{font-size:28px}
  .feature-row,.feature-row.reverse{grid-template-columns:1fr;gap:24px}
  .feature-row.reverse .feature-media{order:0}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;padding:32px}
  .stats-strip{grid-template-columns:1fr 1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .venue-grid,.entry-grid{grid-template-columns:1fr}
  .page-hero{padding:calc(var(--nav-h) + 44px) 0 52px}
  .page-hero h1{font-size:30px}
  .page-hero .lead{font-size:16px}
  .filter-bar{border-radius:18px;padding:12px}
  .stats-strip{grid-template-columns:1fr;padding:24px}
  .form-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .float-cta{
    right:0;left:0;bottom:0;
    width:100%;border-radius:0;
    justify-content:center;
    height:56px;padding:0;
  }
  .site-footer{padding-bottom:56px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .page-hero h1{font-size:26px}
  .section-head h2{font-size:22px}
  .cta-panel{padding:24px}
  .footer-grid{grid-template-columns:1fr}
  .brand span:not(.brand-mark){font-size:16px}
}

/* roulang page: category5 */
:root{
        --bg-900:#05080F;
        --bg-800:#0A1120;
        --bg-700:#101A2C;
        --glass:rgba(255,255,255,.055);
        --line:rgba(255,255,255,.085);
        --brand:#2EE6C8;
        --brand-deep:#12A88F;
        --violet:#6E5BFF;
        --spark:#FF7A45;
        --text-1:#EAF1FF;
        --text-2:#A9B8D0;
        --text-3:#6F8099;
        --r-card:18px;
        --r-lg:24px;
        --r-img:14px;
        --r-pill:999px;
        --sh-card:0 18px 48px rgba(2,6,16,.55);
        --sh-glow-cyan:0 10px 30px rgba(46,230,200,.28);
        --sh-glow-orange:0 12px 34px rgba(255,122,69,.32);
        --font-latin:"Space Grotesk","PingFang SC","Microsoft YaHei",sans-serif;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
    body{
        margin:0;
        background:var(--bg-900);
        color:var(--text-2);
        font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
        font-size:16px;
        line-height:1.85;
        letter-spacing:.01em;
        overflow-x:hidden;
    }
    body::before{
        content:"";
        position:fixed;
        inset:0;
        pointer-events:none;
        z-index:0;
        background:
            radial-gradient(680px 420px at 10% -8%,rgba(46,230,200,.08),transparent 62%),
            radial-gradient(620px 460px at 94% 6%,rgba(110,91,255,.06),transparent 60%);
    }
    img{max-width:100%;display:block;height:auto}
    a{color:var(--brand);text-decoration:none;transition:color .22s ease,border-color .22s ease}
    a:hover{color:#7ff3e0}
    p{margin:0 0 16px}
    ul{margin:0;padding:0;list-style:none}
    h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.3}
    button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
    input,textarea,select{font:inherit;color:inherit}
    :focus-visible{outline:2px solid var(--brand);outline-offset:2px}
    .skip-link{
        position:absolute;left:-9999px;top:0;z-index:200;
        background:var(--bg-700);color:var(--text-1);
        padding:10px 18px;border-radius:0 0 12px 0;
    }
    .skip-link:focus{left:0}

    .container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
    @media (min-width:768px){.container{padding:0 32px}}

    .eyebrow{
        display:inline-block;
        font-family:var(--font-latin);
        font-size:12px;
        letter-spacing:.14em;
        text-transform:uppercase;
        color:var(--brand);
        margin-bottom:10px;
    }

    /* ---------------- 导航 ---------------- */
    .site-header{
        position:sticky;
        top:0;
        z-index:80;
        border-bottom:1px solid transparent;
        transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
    }
    .site-header.is-scrolled{
        background:rgba(5,8,15,.86);
        backdrop-filter:blur(14px);
        border-bottom-color:var(--line);
    }
    .header-inner{display:flex;align-items:center;gap:22px;height:64px}
    .brand{
        display:inline-flex;align-items:center;gap:10px;
        color:var(--text-1);font-weight:700;font-size:17px;letter-spacing:.01em;
        flex-shrink:0;
    }
    .brand:hover{color:var(--text-1)}
    .brand-mark{
        width:34px;height:34px;border-radius:12px;
        display:grid;place-items:center;
        background:linear-gradient(140deg,rgba(46,230,200,.22),rgba(110,91,255,.18));
        border:1px solid rgba(46,230,200,.35);
        color:var(--brand);font-size:15px;
        box-shadow:0 0 18px rgba(46,230,200,.18);
    }
    .nav-links{display:flex;align-items:center;gap:28px;margin-left:14px}
    .nav-link{
        position:relative;
        color:var(--text-2);
        font-size:15px;
        font-weight:500;
        padding:6px 0;
        white-space:nowrap;
    }
    .nav-link:hover{color:var(--text-1)}
    .nav-link.active{color:var(--brand)}
    .nav-link.active::after{
        content:"";
        position:absolute;left:0;right:0;bottom:-2px;height:2px;
        border-radius:2px;background:var(--brand);
        box-shadow:0 0 12px rgba(46,230,200,.7);
    }
    .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
    .icon-btn{
        width:40px;height:40px;border-radius:50%;
        display:inline-flex;align-items:center;justify-content:center;
        background:var(--glass);
        border:1px solid var(--line);
        color:var(--text-2);
        transition:color .2s ease,border-color .2s ease,background .2s ease;
    }
    .icon-btn:hover{color:var(--brand);border-color:rgba(46,230,200,.4);background:rgba(46,230,200,.08)}
    .menu-toggle{
        width:42px;height:42px;border-radius:14px;
        display:none;align-items:center;justify-content:center;
        background:var(--glass);border:1px solid var(--line);color:var(--text-1);
    }
    .menu-toggle:hover{color:var(--brand)}

    .search-layer{
        max-height:0;overflow:hidden;
        background:rgba(10,17,32,.96);
        border-bottom:1px solid transparent;
        transition:max-height .32s ease,border-color .32s ease;
    }
    .search-layer.open{max-height:110px;border-bottom-color:var(--line)}
    .search-inner{display:flex;align-items:center;gap:14px;height:74px}
    .search-inner>i{color:var(--text-3)}
    .search-inner input{
        flex:1;min-width:0;
        background:var(--bg-700);
        border:1px solid var(--line);
        border-radius:12px;
        padding:12px 16px;
        color:var(--text-1);
        transition:border-color .2s ease,box-shadow .2s ease;
    }
    .search-inner input::placeholder{color:var(--text-3)}
    .search-inner input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,230,200,.15)}

    .drawer-mask{
        position:fixed;inset:0;background:rgba(0,0,0,.6);
        opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s;z-index:90;
    }
    .drawer-mask.open{opacity:1;visibility:visible}
    .mobile-drawer{
        position:fixed;top:0;right:0;bottom:0;width:84%;max-width:380px;
        background:rgba(10,17,32,.96);
        backdrop-filter:blur(16px);
        border-left:1px solid var(--line);
        transform:translateX(100%);
        transition:transform .34s cubic-bezier(.4,0,.2,1);
        z-index:100;
        display:flex;flex-direction:column;
        padding:22px 22px 26px;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
    .drawer-nav{display:flex;flex-direction:column;gap:4px}
    .drawer-nav a{
        color:var(--text-2);font-size:16px;font-weight:500;
        padding:13px 12px;border-radius:12px;
        border-left:2px solid transparent;
    }
    .drawer-nav a:hover{background:rgba(255,255,255,.04);color:var(--text-1)}
    .drawer-nav a.active{color:var(--brand);background:rgba(46,230,200,.08);border-left-color:var(--brand)}
    .drawer-cta{margin-top:auto;width:100%}

    /* ---------------- 按钮 ---------------- */
    .btn{
        display:inline-flex;align-items:center;justify-content:center;gap:8px;
        border-radius:var(--r-pill);
        padding:13px 26px;
        font-size:15px;font-weight:600;letter-spacing:.02em;
        border:1px solid transparent;
        transition:transform .18s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease,filter .25s ease;
    }
    .btn:active{transform:scale(.985)}
    .btn-sm{padding:10px 20px;font-size:14px}
    .btn-spark{
        background:linear-gradient(135deg,#FF8C5A,#FF6A33);
        color:#1A0A03;
        box-shadow:var(--sh-glow-orange);
    }
    .btn-spark:hover{color:#180800;filter:brightness(1.08);box-shadow:0 16px 44px rgba(255,122,69,.42)}
    .btn-ghost{
        background:var(--glass);
        border-color:rgba(46,230,200,.42);
        color:var(--brand);
        backdrop-filter:blur(10px);
    }
    .btn-ghost:hover{color:#8df6e6;background:rgba(46,230,200,.1);box-shadow:var(--sh-glow-cyan)}
    .btn-quiet{
        background:rgba(255,255,255,.05);
        border-color:var(--line);
        color:var(--text-1);
    }
    .btn-quiet:hover{color:var(--text-1);border-color:rgba(46,230,200,.35);background:rgba(46,230,200,.08)}

    /* ---------------- 页头图带 ---------------- */
    .page-band{
        position:relative;
        min-height:290px;
        display:flex;
        align-items:flex-end;
        padding:96px 0 30px;
        overflow:hidden;
        background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    }
    .page-band::after{
        content:"";
        position:absolute;inset:0;
        background:linear-gradient(180deg,rgba(5,8,15,.58) 0%,rgba(5,8,15,.9) 100%),rgba(46,230,200,.06);
    }
    .band-inner{position:relative;z-index:2}
    .breadcrumb{
        display:flex;align-items:center;gap:8px;
        font-size:13px;color:var(--text-3);margin-top:8px;
    }
    .breadcrumb a{color:var(--text-3)}
    .breadcrumb a:hover{color:var(--brand)}
    .breadcrumb .sep{color:rgba(255,255,255,.2)}

    /* ---------------- 板块 ---------------- */
    .section{padding:96px 0;position:relative;z-index:1}
    .section-alt{background:var(--bg-800)}
    .section-head{max-width:780px;margin-bottom:44px}
    .section-title{font-size:clamp(24px,3vw,34px);line-height:1.25}
    .section-sub{margin-top:14px;color:var(--text-2);font-size:16px}
    .divider{height:1px;background:var(--line);border:0;margin:0}

    /* ---------------- 首屏简介 ---------------- */
    .intro-grid{
        display:grid;
        grid-template-columns:1.12fr .88fr;
        gap:48px;
        align-items:start;
    }
    h1.intro-title{
        font-size:clamp(30px,4.4vw,52px);
        line-height:1.15;
        font-weight:800;
        letter-spacing:-.01em;
        margin-bottom:20px;
    }
    .lead{font-size:17px;line-height:1.9;color:var(--text-2);max-width:640px}
    .intro-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
    .intro-stats{
        display:grid;
        grid-template-columns:1fr;
        gap:16px;
    }
    .stat-card{
        padding:22px 24px;
        border-radius:var(--r-card);
        background:var(--glass);
        border:1px solid var(--line);
        box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
        transition:transform .25s ease,border-color .25s ease;
    }
    .stat-card:hover{transform:translateY(-3px);border-color:rgba(46,230,200,.32)}
    .stat-num{
        font-family:var(--font-latin);
        font-size:34px;font-weight:700;color:var(--spark);line-height:1.1;
    }
    .stat-num span{font-size:16px;color:var(--text-3);font-weight:500;margin-left:4px}
    .stat-label{font-size:13px;color:var(--text-3);margin-top:6px}

    /* ---------------- 引言块 ---------------- */
    .quote-block{
        position:relative;
        padding:34px 36px;
        border-radius:var(--r-lg);
        background:var(--glass);
        border:1px solid var(--line);
        box-shadow:var(--sh-card);
        overflow:hidden;
    }
    .quote-block::before{
        content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
        background:linear-gradient(180deg,var(--brand),var(--brand-deep));
    }
    .quote-text{
        font-size:clamp(19px,2.2vw,25px);
        line-height:1.6;
        color:var(--text-1);
        font-weight:600;
        margin:0;
    }
    .quote-meta{margin-top:16px;font-size:13px;color:var(--text-3);font-family:var(--font-latin)}

    /* ---------------- 画廊 ---------------- */
    .gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
    .gallery-item{
        position:relative;
        grid-column:span 3;
        min-height:280px;
        border-radius:var(--r-lg);
        overflow:hidden;
        border:1px solid var(--line);
        background:var(--bg-700);
    }
    .gallery-item.g-4{grid-column:span 4}
    .gallery-item.g-2{grid-column:span 2}
    .gallery-item img{
        width:100%;height:100%;min-height:280px;
        object-fit:cover;
        transition:transform .6s ease;
    }
    .gallery-item:hover img{transform:scale(1.045)}
    .g-caption{
        position:absolute;left:0;right:0;bottom:0;
        padding:22px 22px 18px;
        background:linear-gradient(180deg,rgba(5,8,15,0),rgba(5,8,15,.92));
    }
    .g-caption h3{font-size:17px;margin-bottom:6px}
    .g-caption p{margin:0;font-size:13px;color:var(--text-3)}
    .g-badge{
        position:absolute;top:16px;left:16px;
        font-size:12px;padding:5px 12px;border-radius:var(--r-pill);
        background:rgba(5,8,15,.7);
        border:1px solid rgba(46,230,200,.4);
        color:var(--brand);
        backdrop-filter:blur(8px);
    }

    /* ---------------- 指标卡 ---------------- */
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
    .metric-card{
        padding:26px 24px;
        border-radius:var(--r-card);
        background:var(--glass);
        border:1px solid var(--line);
        box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
        transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
    }
    .metric-card:hover{
        transform:translateY(-4px);
        border-color:rgba(46,230,200,.35);
        box-shadow:var(--sh-card);
    }
    .metric-icon{
        width:42px;height:42px;border-radius:13px;
        display:grid;place-items:center;
        background:rgba(46,230,200,.1);
        border:1px solid rgba(46,230,200,.28);
        color:var(--brand);font-size:16px;margin-bottom:18px;
    }
    .metric-card h3{font-size:18px;margin-bottom:10px}
    .metric-card p{margin:0;font-size:14px;line-height:1.8;color:var(--text-2)}

    /* ---------------- 图文区 ---------------- */
    .split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
    .split-media{
        border-radius:var(--r-lg);
        overflow:hidden;
        border:1px solid var(--line);
        background:var(--bg-700);
    }
    .split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
    .check-list li{
        position:relative;
        padding-left:28px;
        margin-bottom:14px;
        font-size:15.5px;
        color:var(--text-2);
    }
    .check-list li:last-child{margin-bottom:0}
    .check-list li::before{
        content:"\f00c";
        font-family:"Font Awesome 6 Free";
        font-weight:900;
        position:absolute;left:0;top:2px;
        font-size:13px;color:var(--brand);
    }
    .check-list strong{color:var(--text-1);font-weight:600}

    /* ---------------- FAQ ---------------- */
    .faq-wrap{max-width:860px;margin:0 auto}
    .faq-item{
        border-radius:var(--r-card);
        background:var(--glass);
        border:1px solid var(--line);
        margin-bottom:14px;
        overflow:hidden;
        transition:border-color .25s ease,background .25s ease;
    }
    .faq-item.open{border-color:rgba(46,230,200,.38);background:rgba(46,230,200,.05)}
    .faq-q{
        width:100%;
        display:flex;align-items:center;justify-content:space-between;gap:18px;
        text-align:left;
        padding:20px 22px 20px 24px;
        font-size:16px;font-weight:600;color:var(--text-1);
    }
    .faq-q i{
        color:var(--text-3);font-size:14px;
        transition:transform .3s ease,color .3s ease;
        flex-shrink:0;
    }
    .faq-item.open .faq-q i{transform:rotate(45deg);color:var(--brand)}
    .faq-a{
        max-height:0;
        overflow:hidden;
        transition:max-height .35s ease;
    }
    .faq-a-inner{
        padding:0 24px 22px 24px;
        border-left:2px solid rgba(46,230,200,.55);
        margin-left:24px;
        padding-left:18px;
    }
    .faq-a p{margin:0;font-size:15px;line-height:1.85;color:var(--text-2)}

    /* ---------------- CTA / 表单 ---------------- */
    .cta-panel{
        border-radius:var(--r-lg);
        background:linear-gradient(160deg,rgba(16,26,44,.9),rgba(10,17,32,.92));
        border:1px solid var(--line);
        padding:44px;
        box-shadow:var(--sh-card);
    }
    .cta-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:40px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .form-field{display:flex;flex-direction:column;gap:8px}
    .form-field.full{grid-column:span 2}
    .form-field label{font-size:13px;color:var(--text-3)}
    .form-field input,
    .form-field select,
    .form-field textarea{
        background:var(--bg-700);
        border:1px solid var(--line);
        border-radius:12px;
        padding:12px 14px;
        color:var(--text-1);
        transition:border-color .2s ease,box-shadow .2s ease;
    }
    .form-field textarea{min-height:110px;resize:vertical}
    .form-field input::placeholder,
    .form-field textarea::placeholder{color:var(--text-3)}
    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus{
        outline:none;
        border-color:var(--brand);
        box-shadow:0 0 0 3px rgba(46,230,200,.15);
    }
    .form-note{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.7}
    .form-status{
        display:none;
        margin-top:14px;
        padding:11px 16px;
        border-radius:12px;
        font-size:13.5px;
        border:1px solid rgba(46,230,200,.4);
        background:rgba(46,230,200,.1);
        color:#9ff6e8;
    }
    .form-status.show{display:block}
    .contact-box{
        border-radius:var(--r-card);
        background:var(--glass);
        border:1px solid var(--line);
        padding:28px 26px;
    }
    .contact-box h3{font-size:18px;margin-bottom:16px}
    .contact-list li{
        display:flex;gap:12px;align-items:flex-start;
        padding:12px 0;
        border-bottom:1px dashed rgba(255,255,255,.08);
        font-size:14.5px;color:var(--text-2);
    }
    .contact-list li:last-child{border-bottom:0}
    .contact-list i{color:var(--brand);margin-top:5px;width:16px;text-align:center}
    .contact-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
    .tag{
        font-size:12px;
        padding:5px 12px;
        border-radius:var(--r-pill);
        border:1px solid rgba(46,230,200,.35);
        color:var(--brand);
        background:transparent;
    }
    .tag-spark{
        border-color:transparent;
        background:linear-gradient(135deg,#FF8C5A,#FF6A33);
        color:#1A0A03;
        font-weight:600;
    }

    /* ---------------- 相关入口 ---------------- */
    .entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
    .entry-card{
        display:block;
        border-radius:var(--r-card);
        background:var(--glass);
        border:1px solid var(--line);
        overflow:hidden;
        transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
    }
    .entry-card:hover{
        transform:translateY(-4px);
        border-color:rgba(46,230,200,.35);
        box-shadow:var(--sh-card);
    }
    .entry-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
    .entry-body{padding:22px}
    .entry-body h3{font-size:17px;margin-bottom:10px;color:var(--text-1)}
    .entry-card:hover h3{color:var(--brand)}
    .entry-body p{margin:0;font-size:14px;color:var(--text-2);line-height:1.8}
    .entry-meta{
        display:flex;align-items:center;justify-content:space-between;
        margin-top:16px;font-size:13px;color:var(--text-3);
    }
    .entry-meta i{transition:transform .25s ease,color .25s ease}
    .entry-card:hover .entry-meta i{transform:translateX(4px);color:var(--brand)}

    /* ---------------- 页脚 ---------------- */
    .site-footer{
        position:relative;
        padding:72px 0 0;
        background:var(--bg-800);
        border-top:1px solid var(--line);
        overflow:hidden;
        z-index:1;
    }
    .footer-arc{
        position:absolute;top:-170px;right:-130px;
        width:460px;height:460px;border-radius:50%;
        border:1px solid rgba(46,230,200,.14);
        pointer-events:none;
    }
    .footer-grid{
        display:grid;
        grid-template-columns:1.45fr 1fr 1fr 1.25fr;
        gap:32px;
        padding-bottom:48px;
    }
    .footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-3);max-width:330px}
    .footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
    .footer-col li{margin-bottom:11px;font-size:14px;color:var(--text-3)}
    .footer-col a{color:var(--text-2);font-size:14px}
    .footer-col a:hover{color:var(--brand)}
    .footer-bottom{
        display:flex;align-items:center;justify-content:space-between;gap:16px;
        padding:20px 0 24px;
        border-top:1px solid var(--line);
        font-size:13px;color:var(--text-3);
    }
    .footer-bottom p{margin:0}
    .to-top{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
    .to-top:hover{color:var(--brand)}

    /* ---------------- 浮动 CTA ---------------- */
    .float-cta{
        position:fixed;right:24px;bottom:28px;z-index:70;
        display:inline-flex;align-items:center;gap:10px;
        padding:14px 22px;
        border-radius:var(--r-pill);
        background:linear-gradient(135deg,#FF8C5A,#FF6A33);
        color:#1A0A03;
        font-weight:700;font-size:14px;
        box-shadow:var(--sh-glow-orange);
        opacity:0;visibility:hidden;transform:translateY(14px);
        transition:opacity .28s ease,transform .28s ease,visibility .28s ease,filter .25s ease;
    }
    .float-cta.is-visible{opacity:1;visibility:visible;transform:none}
    .float-cta:hover{color:#180800;filter:brightness(1.08)}

    /* ---------------- 响应式 ---------------- */
    @media (max-width:1180px){
        .nav-links{gap:20px}
        .nav-link{font-size:14.5px}
    }
    @media (max-width:1024px){
        .section{padding:72px 0}
        .nav-links{display:none}
        .menu-toggle{display:inline-flex}
        .intro-grid{grid-template-columns:1fr;gap:36px}
        .metric-grid{grid-template-columns:1fr 1fr}
        .cta-grid{grid-template-columns:1fr;gap:32px}
        .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
        .entry-grid{grid-template-columns:1fr 1fr}
        .cta-panel{padding:34px}
    }
    @media (max-width:900px){
        .gallery-item,
        .gallery-item.g-4,
        .gallery-item.g-2{grid-column:span 3}
        .split{grid-template-columns:1fr;gap:28px}
    }
    @media (max-width:768px){
        .section{padding:56px 0}
        .header-inner{height:56px;gap:14px}
        .brand{font-size:16px}
        .header-actions .btn-spark{display:none}
        .page-band{padding:84px 0 24px;min-height:250px}
        .gallery{grid-template-columns:1fr}
        .gallery-item,
        .gallery-item.g-4,
        .gallery-item.g-2{grid-column:span 1;min-height:230px}
        .gallery-item img{min-height:230px}
        .metric-grid{grid-template-columns:1fr}
        .entry-grid{grid-template-columns:1fr}
        .footer-grid{grid-template-columns:1fr;gap:26px}
        .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;padding-bottom:76px}
        .form-grid{grid-template-columns:1fr}
        .form-field.full{grid-column:span 1}
        .cta-panel{padding:26px 20px}
        .quote-block{padding:26px 22px}
        .faq-a-inner{margin-left:16px}
        .float-cta{
            left:0;right:0;bottom:0;width:100%;height:56px;
            justify-content:center;border-radius:0;
            transform:translateY(100%);
            padding:0;
        }
        .float-cta.is-visible{transform:none}
        .site-footer{padding-bottom:0}
    }
    @media (max-width:520px){
        h1.intro-title{font-size:30px}
        .section-title{font-size:24px}
        .stat-num{font-size:30px}
        .search-inner{height:64px;gap:10px}
        .search-inner .btn{display:none}
    }