/* roulang page: index */
:root{
  --bg-0:#050E12;
  --bg-1:#07181E;
  --bg-2:#0B252D;
  --primary:#2EE6C5;
  --primary-deep:#17B8A6;
  --copper:#F0B35C;
  --text:#E9F7F4;
  --text-2:#9CB6BC;
  --line:rgba(180,236,228,.16);
  --ok:#72E6A5;
  --warn:#F0B35C;
  --err:#FF8C7A;
  --glass:rgba(12,37,45,.64);
  --glass-soft:rgba(11,37,45,.42);
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 18px 48px rgba(0,0,0,.35);
  --shadow-soft:0 10px 28px rgba(0,0,0,.24);
  --container:1200px;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei','Noto Sans CJK SC',sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(46,230,197,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,230,197,.035) 1px,transparent 1px);
  background-size:72px 72px,72px 72px;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:92px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--primary);opacity:.7;}
.section-title{font-size:clamp(1.75rem,3vw,2.5rem);line-height:1.22;}
.section-sub{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.8;max-width:680px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(5,14,18,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.head-inner{
  min-height:72px;display:flex;align-items:center;gap:28px;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(140deg,rgba(46,230,197,.9),rgba(23,184,166,.55));
  display:grid;place-items:center;color:#04201D;
  box-shadow:0 0 0 1px rgba(46,230,197,.35),0 8px 24px rgba(46,230,197,.22);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0;}
.brand-name{font-size:16px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.brand-sub{font-size:11px;color:var(--text-2);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;display:inline-block;padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--text-2);transition:color var(--ease),background var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(46,230,197,.08);}
.nav-links a.is-active{color:var(--primary);background:rgba(46,230,197,.1);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:18px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(46,230,197,.7);
}
.head-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#2EE6C5,#17B8A6);
  color:#04201D;
  box-shadow:0 0 0 1px rgba(46,230,197,.35),0 12px 36px rgba(46,230,197,.28);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(46,230,197,.55),0 16px 44px rgba(46,230,197,.4);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(12,37,45,.6);color:var(--text);border-color:var(--line);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(46,230,197,.6);background:rgba(46,230,197,.08);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn .arrow{width:16px;height:16px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 96px;min-height:88vh;display:flex;align-items:center;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.55;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(60% 70% at 78% 22%,rgba(46,230,197,.16),transparent 62%),
    linear-gradient(180deg,rgba(5,14,18,.86) 0%,rgba(5,14,18,.92) 46%,rgba(5,14,18,.98) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.hero-copy{grid-column:span 7;}
.hero-panel{grid-column:span 5;}
.hero h1{
  font-size:clamp(2.5rem,5vw,4rem);line-height:1.1;letter-spacing:.005em;
  margin-bottom:22px;
}
.hero h1 .hl{
  background:linear-gradient(100deg,#2EE6C5,#8FF3E2 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text-2);max-width:600px;margin-bottom:32px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 0;align-items:center;color:var(--text-2);font-size:14px;}
.trust-row li{display:flex;align-items:center;gap:8px;padding-right:18px;margin-right:18px;border-right:1px solid var(--line);}
.trust-row li:last-child{border-right:0;margin-right:0;padding-right:0;}
.trust-row .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(46,230,197,.9);}

.glass-card{
  background:var(--glass);
  border:1px solid rgba(180,236,228,.18);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow);
}
.entry-card{padding:24px;position:relative;overflow:hidden;}
.entry-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,197,.8),transparent);
}
.entry-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.entry-head h2{font-size:16px;font-weight:700;}
.status-live{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--ok);}
.status-live i{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px rgba(114,230,165,.9);animation:breathe 2.4s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.45}}
.entry-cover{
  border-radius:12px;overflow:hidden;margin-bottom:18px;position:relative;
  border:1px solid var(--line);
}
.entry-cover img{width:100%;height:132px;object-fit:cover;filter:saturate(.9) brightness(.86);}
.entry-cover span{
  position:absolute;left:12px;bottom:10px;font-size:12px;color:var(--text);
  background:rgba(5,14,18,.72);border:1px solid var(--line);border-radius:999px;padding:3px 10px;
}
.steps{display:flex;flex-direction:column;gap:2px;margin-bottom:20px;}
.step{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px;background:rgba(7,24,30,.55);border:1px solid transparent;}
.step + .step{margin-top:8px;}
.step.is-on{border-color:rgba(46,230,197,.34);background:rgba(46,230,197,.07);}
.step-dot{width:22px;height:22px;flex:0 0 22px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;font-variant-numeric:tabular-nums;background:rgba(156,182,188,.16);color:var(--text-2);}
.step.is-on .step-dot{background:linear-gradient(135deg,#2EE6C5,#17B8A6);color:#04201D;}
.step-body{min-width:0;}
.step-title{font-size:14px;font-weight:600;}
.step-desc{font-size:12px;color:var(--text-2);line-height:1.5;}
.entry-card .btn{width:100%;}
.entry-foot{margin-top:12px;font-size:12px;color:var(--text-2);text-align:center;}

/* ---------- pillars ---------- */
.pillars{padding:96px 0 104px;}
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.pillar{
  padding:28px 26px 26px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(11,37,45,.72),rgba(7,24,30,.5));
  border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  position:relative;overflow:hidden;
}
.pillar:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.35);box-shadow:var(--shadow);}
.pillar:hover::before{opacity:1;}
.pillar::before{
  content:"";position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,197,.75),transparent);
  opacity:0;transition:opacity var(--ease);
}
.pillar:nth-child(2){margin-top:36px;}
.pillar:nth-child(3){margin-top:72px;}
.pillar-ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  border:1px solid rgba(46,230,197,.34);background:rgba(46,230,197,.08);color:var(--primary);
  margin-bottom:18px;
}
.pillar-ico svg{width:22px;height:22px;}
.pillar-no{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--copper);font-variant-numeric:tabular-nums;}
.pillar h3{font-size:21px;margin:10px 0 10px;}
.pillar p{color:var(--text-2);font-size:15px;line-height:1.8;margin-bottom:20px;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px solid transparent;transition:border-color var(--ease),gap var(--ease);}
.link-arrow svg{width:15px;height:15px;transition:transform var(--ease);}
.link-arrow:hover{border-bottom-color:rgba(46,230,197,.7);gap:12px;}

/* ---------- scenes ---------- */
.scenes{padding:96px 0;background:linear-gradient(180deg,rgba(7,24,30,0),rgba(7,24,30,.72) 40%,rgba(7,24,30,0));}
.scene-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:44px;align-items:center;}
.scene-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 22px;}
.scene-tab{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);
  background:rgba(12,37,45,.55);color:var(--text-2);font-size:14px;cursor:pointer;
  transition:all var(--ease);
}
.scene-tab:hover{color:var(--text);border-color:rgba(46,230,197,.5);}
.scene-tab.is-active{background:rgba(46,230,197,.14);border-color:rgba(46,230,197,.55);color:var(--primary);font-weight:600;}
.scene-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.scene-visual img{width:100%;height:420px;object-fit:cover;filter:saturate(.92) brightness(.82);}
.scene-overlay{position:absolute;inset:auto 0 0 0;padding:22px;background:linear-gradient(180deg,transparent,rgba(5,14,18,.92));}
.track{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.track span{
  font-size:12px;padding:6px 12px;border-radius:999px;
  background:rgba(12,37,45,.8);border:1px solid rgba(180,236,228,.24);color:var(--text);
}
.track span.on{background:rgba(46,230,197,.16);border-color:rgba(46,230,197,.6);color:var(--primary);}
.mini-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.mini{
  background:var(--glass);border:1px solid var(--line);border-radius:14px;padding:12px 14px;
  backdrop-filter:blur(12px);
}
.mini b{display:block;font-size:19px;font-variant-numeric:tabular-nums;color:var(--primary);line-height:1.4;}
.mini small{font-size:12px;color:var(--text-2);}

/* ---------- proof ---------- */
.proof{padding:96px 0;}
.metric-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-radius:var(--radius);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(16px);box-shadow:var(--shadow-soft);
  margin-bottom:44px;
}
.metric{padding:26px 24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric b{display:block;font-size:clamp(1.6rem,2.6vw,2.1rem);color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:.01em;}
.metric span{display:block;font-size:13px;color:var(--text-2);margin-top:6px;}
.logo-wall{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:18px 22px;border-radius:var(--radius);border:1px dashed rgba(180,236,228,.22);
  color:var(--text-2);font-size:13px;margin-bottom:44px;background:rgba(7,24,30,.42);
}
.logo-wall em{font-style:normal;color:var(--text);font-weight:600;letter-spacing:.04em;padding:6px 14px;border-radius:8px;background:rgba(12,37,45,.72);border:1px solid var(--line);}
.quote-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:24px;align-items:stretch;}
.quote-main{
  padding:32px;border-radius:var(--radius-lg);position:relative;
  background:linear-gradient(150deg,rgba(46,230,197,.12),rgba(11,37,45,.7) 55%);
  border:1px solid rgba(46,230,197,.28);
  backdrop-filter:blur(14px);
  display:flex;flex-direction:column;justify-content:space-between;
}
.quote-main::before{
  content:"“";position:absolute;top:6px;left:20px;font-size:74px;line-height:1;color:rgba(46,230,197,.28);font-family:Georgia,serif;
}
.quote-main p{position:relative;font-size:17px;line-height:1.9;margin:26px 0 24px;color:var(--text);}
.quote-who{font-size:13px;color:var(--text-2);}
.quote-side{
  padding:24px;border-radius:var(--radius);background:rgba(11,37,45,.6);
  border:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;gap:16px;
  transition:transform var(--ease),border-color var(--ease);
}
.quote-side:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.35);}
.quote-side p{font-size:14px;line-height:1.85;color:var(--text);}
.quote-side small{font-size:12px;color:var(--text-2);}

/* ---------- latest / cms ---------- */
.latest{padding:96px 0;}
.latest-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.post-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.post-card{
  display:grid;grid-template-columns:180px minmax(0,1fr);
  border-radius:var(--radius);overflow:hidden;
  background:rgba(11,37,45,.62);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(46,230,197,.35);box-shadow:var(--shadow);}
.post-card:hover .post-title{color:var(--primary);}
.post-thumb{position:relative;overflow:hidden;background:var(--bg-2);}
.post-thumb img{width:100%;height:100%;min-height:170px;object-fit:cover;transition:transform 320ms ease;filter:brightness(.86) saturate(.92);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px 20px 18px;display:flex;flex-direction:column;min-width:0;}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-2);margin-bottom:10px;flex-wrap:wrap;}
.badge{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;
  background:rgba(240,179,92,.14);color:var(--copper);border:1px solid rgba(240,179,92,.32);
}
.post-time{display:inline-flex;align-items:center;gap:5px;font-variant-numeric:tabular-nums;}
.post-time svg{width:12px;height:12px;color:var(--copper);}
.post-title{
  font-size:16px;line-height:1.55;font-weight:600;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.post-desc{
  font-size:13px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px;
}
.post-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--primary);font-weight:600;}
.post-more svg{width:14px;height:14px;transition:transform var(--ease);}
.post-card:hover .post-more svg{transform:translateX(3px);}
.empty-state{
  grid-column:1 / -1;
  padding:44px 24px;border-radius:var(--radius);border:1px dashed rgba(180,236,228,.3);
  background:rgba(11,37,45,.5);text-align:center;color:var(--text-2);
}
.empty-state svg{width:34px;height:34px;color:var(--primary);opacity:.7;margin:0 auto 12px;}
.empty-state p{font-size:14px;}

/* ---------- faq ---------- */
.faq{padding:96px 0;}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(11,37,45,.58);overflow:hidden;transition:border-color var(--ease),background var(--ease);
}
.faq-item.is-open{border-color:rgba(46,230,197,.4);background:rgba(12,37,45,.78);}
.faq-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;background:none;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-head:hover{color:var(--primary);}
.faq-plus{width:22px;height:22px;flex:0 0 22px;position:relative;transition:transform var(--ease);}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-plus{transform:rotate(45deg);}
.faq-body{max-height:0;overflow:hidden;transition:max-height 280ms ease;}
.faq-body-inner{padding:0 22px 18px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* ---------- cta ---------- */
.cta-band{padding:0 0 96px;}
.cta-panel{
  padding:40px;border-radius:var(--radius-lg);
  background:
    radial-gradient(80% 130% at 12% 0%,rgba(46,230,197,.18),transparent 62%),
    rgba(12,37,45,.72);
  border:1px solid rgba(46,230,197,.26);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-panel h2{font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.3;margin-bottom:8px;}
.cta-panel p{color:var(--text-2);font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-foot{
  position:relative;background:var(--bg-1);border-top:1px solid rgba(46,230,197,.22);
  padding:64px 0 30px;overflow:hidden;
}
.site-foot::before{
  content:"";position:absolute;left:50%;bottom:-160px;transform:translateX(-50%);
  width:900px;height:320px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(46,230,197,.09),transparent 72%);
  pointer-events:none;
}
.foot-grid{position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;margin-bottom:44px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:320px;}
.foot-col h4{font-size:14px;letter-spacing:.06em;margin-bottom:16px;color:var(--text);}
.foot-col ul li{margin-bottom:10px;}
.foot-col a{font-size:14px;color:var(--text-2);border-bottom:1px solid transparent;transition:all var(--ease);}
.foot-col a:hover{color:var(--primary);border-bottom-color:rgba(46,230,197,.6);}
.foot-col p{font-size:14px;color:var(--text-2);line-height:1.85;}
.foot-bottom{
  position:relative;border-top:1px solid var(--line);padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);
}

/* ---------- fixed bar ---------- */
.fixed-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;width:360px;
  padding:16px 18px;border-radius:var(--radius);
  background:rgba(12,37,45,.82);border:1px solid rgba(46,230,197,.3);
  backdrop-filter:blur(16px);box-shadow:var(--shadow);
  display:flex;align-items:center;gap:14px;
  transition:opacity var(--ease),transform var(--ease);
}
.fixed-cta.is-hidden{opacity:0;transform:translateY(12px);pointer-events:none;}
.fixed-cta p{font-size:13px;line-height:1.6;color:var(--text);flex:1;min-width:0;}
.fixed-cta .btn{height:40px;padding:0 16px;font-size:13px;}
.fixed-close{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;border:1px solid var(--line);
  background:transparent;color:var(--text-2);cursor:pointer;display:grid;place-items:center;
  transition:all var(--ease);
}
.fixed-close:hover{color:var(--primary);border-color:rgba(46,230,197,.5);}
.fixed-close svg{width:12px;height:12px;}

/* ---------- mobile tab ---------- */
.mobile-tab{display:none;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 620ms ease,transform 620ms ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .container{padding:0 20px;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .hero{min-height:auto;padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy,.hero-panel{grid-column:1 / -1;}
  .scene-grid{grid-template-columns:1fr;gap:32px;}
  .metric-bar{grid-template-columns:1fr 1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:nth-child(odd){border-right:1px solid var(--line);}
  .metric:nth-child(3),.metric:nth-child(4){border-bottom:0;}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .quote-main{grid-column:1 / -1;}
  .post-card{grid-template-columns:150px minmax(0,1fr);}
  .fixed-cta{right:16px;left:16px;width:auto;bottom:calc(64px + 12px + env(safe-area-inset-bottom,0px));}
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:85;
    height:calc(64px + env(safe-area-inset-bottom,0px));
    padding-bottom:env(safe-area-inset-bottom,0px);
    background:rgba(5,14,18,.92);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--line);
  }
  .mobile-tab a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;color:var(--text-2);transition:color var(--ease);
  }
  .mobile-tab a svg{width:20px;height:20px;}
  .mobile-tab a.is-active{color:var(--primary);}
  .mobile-tab a.is-active svg{filter:drop-shadow(0 0 6px rgba(46,230,197,.75));}
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom,0px) + 96px);}
  .section,.pillars,.scenes,.proof,.latest,.faq{padding:64px 0;}
  .cta-band{padding-bottom:64px;}
}
@media (max-width:768px){
  .hero h1{font-size:clamp(2.1rem,7vw,2.75rem);}
  .pillar-grid{grid-template-columns:1fr;gap:16px;}
  .pillar:nth-child(2),.pillar:nth-child(3){margin-top:0;}
  .post-grid{grid-template-columns:1fr;}
  .post-card{grid-template-columns:1fr;}
  .post-thumb img{height:180px;min-height:0;}
  .scene-visual img{height:300px;}
  .quote-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-panel{padding:26px;}
  .metric{padding:20px 16px;}
  .metric b{font-size:1.55rem;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .brand-name{font-size:15px;}
  .brand-sub{display:none;}
  .brand-mark{width:34px;height:34px;flex-basis:34px;}
  .hero-cta .btn{width:100%;}
  .hero-cta{gap:12px;}
  .trust-row li{padding-right:12px;margin-right:12px;font-size:13px;}
  .metric-bar{grid-template-columns:1fr;}
  .metric{border-right:0 !important;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .mini-metrics{grid-template-columns:1fr;}
  .post-body{padding:16px;}
  .faq-head{padding:14px 16px;font-size:15px;}
  .faq-body-inner{padding:0 16px 16px;font-size:14px;}
  .fixed-cta{padding:12px 14px;}
  .fixed-cta p{font-size:12px;}
  .foot-grid{grid-template-columns:1fr;}
  .mobile-tab a svg{width:18px;height:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg:#050E12;
  --bg-2:#07181E;
  --bg-3:#0B252D;
  --primary:#2EE6C5;
  --primary-deep:#17B8A6;
  --copper:#F0B35C;
  --text:#E9F7F4;
  --text-soft:#D5EAE6;
  --muted:#9CB6BC;
  --line:rgba(180,236,228,.16);
  --line-strong:rgba(180,236,228,.3);
  --glass:rgba(12,37,45,.64);
  --glass-soft:rgba(12,37,45,.42);
  --ok:#72E6A5;
  --warn:#F0B35C;
  --err:#FF8C7A;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --shadow-card:0 18px 48px rgba(0,0,0,.35);
  --shadow-cta:0 0 0 1px rgba(46,230,197,.35),0 12px 36px rgba(46,230,197,.28);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(180,236,228,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(180,236,228,.035) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--text-soft);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--primary)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--copper);outline-offset:3px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.2;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* header */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(5,14,18,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);
  background:linear-gradient(145deg,rgba(46,230,197,.16),rgba(12,37,45,.6));
  border:1px solid rgba(46,230,197,.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-mark svg{width:21px;height:21px}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-name{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;
  padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--muted);font-weight:500;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(46,230,197,.08)}
.nav-links a.is-active{color:var(--primary);background:rgba(46,230,197,.1)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:16px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(46,230,197,.8);
}
.head-actions{display:flex;align-items:center;gap:12px;margin-left:8px}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn .arrow{width:16px;height:16px;transition:transform .2s ease}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{
  color:#04201D;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:var(--shadow-cta);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(46,230,197,.5),0 16px 42px rgba(46,230,197,.38);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.97)}
.btn-ghost{
  color:var(--text);background:rgba(12,37,45,.55);
  border-color:var(--line);backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(46,230,197,.55);background:rgba(46,230,197,.08);color:var(--text)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.text-link .arrow{width:14px;height:14px}
.text-link:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}

/* banner */
.page-banner{
  position:relative;
  padding:56px 0 44px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg,rgba(5,14,18,.82) 0%,rgba(5,14,18,.96) 100%),
    url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::after{
  content:"";position:absolute;left:-10%;right:-10%;bottom:-160px;height:280px;
  background:radial-gradient(closest-side,rgba(46,230,197,.14),transparent 72%);
  pointer-events:none;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:rgba(156,182,188,.5)}
.crumbs .now{color:var(--text-soft);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px;font-size:13px;color:var(--muted)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--copper);
  background:rgba(240,179,92,.12);
  border:1px solid rgba(240,179,92,.32);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(156,182,188,.5)}
.page-banner h1{
  font-size:clamp(1.9rem,3.6vw,2.9rem);
  line-height:1.22;
  max-width:900px;
  margin-bottom:18px;
}
.article-lead{
  max-width:820px;font-size:16px;line-height:1.85;color:var(--muted);
}

/* layout */
.article-shell{padding:64px 0 80px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-main{min-width:0;max-width:780px}
.article-panel{
  background:rgba(7,24,30,.62);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:36px 40px 44px;
  box-shadow:var(--shadow-card);
}
.article-body{font-size:17px;line-height:1.9;color:var(--text-soft);word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;padding-left:16px;
  font-size:clamp(1.3rem,2.2vw,1.65rem);
  margin:2em 0 .8em;color:var(--text);scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 14px rgba(46,230,197,.5);
}
.article-body h3{font-size:1.14rem;margin:1.4em 0 .6em;color:var(--text);scroll-margin-top:96px}
.article-body h4{font-size:1.02rem;margin:1.2em 0 .5em;color:var(--text)}
.article-body a{color:var(--primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.article-body strong{color:#FFFFFF;font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding:0}
.article-body ul li{position:relative;padding-left:22px;margin:.5em 0}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--primary);opacity:.85;
}
.article-body ol{counter-reset:li;padding-left:0}
.article-body ol li{position:relative;padding-left:30px;margin:.5em 0;counter-increment:li}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-size:13px;font-weight:700;color:var(--copper);
  font-variant-numeric:tabular-nums;line-height:1.95;
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;
  border-left:3px solid var(--copper);
  border-radius:0 12px 12px 0;
  background:rgba(12,37,45,.6);
  color:#C8E3DE;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.4em 0;width:auto;max-width:100%}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:rgba(46,230,197,.08);color:var(--text);font-weight:600}
.article-body code{background:rgba(46,230,197,.1);color:var(--primary);padding:1px 6px;border-radius:6px;font-size:.9em}
.article-empty{
  border:1px dashed rgba(180,236,228,.34);
  border-radius:var(--radius);
  padding:48px 28px;text-align:center;
  background:rgba(12,37,45,.42);
}
.article-empty svg{width:44px;height:44px;color:var(--primary);margin:0 auto 18px}
.article-empty h2{font-size:1.2rem;margin-bottom:10px}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* aside */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 18px 48px rgba(0,0,0,.3);
}
.side-card h3{
  font-size:13px;letter-spacing:.12em;color:var(--muted);font-weight:600;
  text-transform:none;margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(46,230,197,.8)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--muted);
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.toc-list a.is-sub{padding-left:22px;font-size:13px}
.toc-list a:hover{color:var(--text);background:rgba(46,230,197,.08);border-left-color:rgba(46,230,197,.5)}
.toc-list a.is-active{color:var(--primary);border-left-color:var(--primary);background:rgba(46,230,197,.08)}
.toc-empty{font-size:13px;color:var(--muted);line-height:1.7}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{
  font-size:13px;padding:6px 12px;border-radius:999px;
  color:var(--text-soft);border:1px solid var(--line);background:rgba(7,24,30,.6);
}
.side-tags a:hover{color:var(--primary);border-color:rgba(46,230,197,.55);background:rgba(46,230,197,.1)}
.side-entry{display:flex;flex-direction:column;gap:10px}
.side-entry a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;border-radius:12px;
  border:1px solid var(--line);background:rgba(7,24,30,.55);
  font-size:14px;color:var(--text-soft);
  transition:transform .2s ease,border-color .2s ease,background-color .2s ease,color .2s ease;
}
.side-entry a span.arrow{color:var(--primary);font-size:15px;transition:transform .2s ease}
.side-entry a:hover{transform:translateX(3px);border-color:rgba(46,230,197,.5);color:var(--primary);background:rgba(46,230,197,.07)}
.side-entry a:hover span.arrow{transform:translateX(3px)}
.side-note{font-size:13px;color:var(--muted);line-height:1.8}

/* related */
.related-block{padding:0 0 88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2rem)}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{
  display:flex;flex-direction:column;
  background:rgba(7,24,30,.62);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  box-shadow:0 12px 32px rgba(0,0,0,.24);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.related-card:hover,.related-card:focus-within{transform:translateY(-4px);border-color:rgba(46,230,197,.35);box-shadow:0 20px 48px rgba(0,0,0,.36)}
.related-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-3)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.related-card:hover .related-thumb img{transform:scale(1.03)}
.related-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-kicker{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--copper)}
.related-kicker .tag{color:var(--copper);background:rgba(240,179,92,.12);border:1px solid rgba(240,179,92,.3);padding:2px 9px;border-radius:999px}
.related-body h3{font-size:16px;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-body p{font-size:13px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-more{margin-top:auto;padding-top:8px;display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--primary)}
.related-more .arrow{width:14px;height:14px}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}

/* cta */
.cta-block{padding:0 0 96px}
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  padding:40px 44px;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(46,230,197,.12),rgba(12,37,45,.72) 55%,rgba(240,179,92,.08));
  border:1px solid rgba(46,230,197,.26);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 24px 60px rgba(0,0,0,.4);
  backdrop-filter:blur(16px);
}
.cta-panel h2{font-size:clamp(1.4rem,2.4vw,1.9rem);margin-bottom:10px}
.cta-panel p{font-size:14px;color:var(--muted);line-height:1.8;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.site-foot{position:relative;background:#040B0E;border-top:1px solid var(--line);padding:64px 0 28px;overflow:hidden}
.site-foot::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-140px;
  width:900px;height:280px;
  background:radial-gradient(closest-side,rgba(46,230,197,.1),transparent 70%);
  pointer-events:none;
}
.foot-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand p{font-size:13px;color:var(--muted);line-height:1.85;margin-top:18px;max-width:330px}
.foot-col h4{font-size:14px;color:var(--text);margin-bottom:16px;font-weight:600;letter-spacing:.04em}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a,.foot-col p{font-size:13px;color:var(--muted);line-height:1.8}
.foot-col ul li{margin:0}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{
  position:relative;z-index:1;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12px;color:rgba(156,182,188,.78);
}

/* float cta */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:360px;max-width:calc(100% - 48px);
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;border-radius:16px;
  background:var(--glass);border:1px solid rgba(46,230,197,.26);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
  transition:opacity .25s ease,transform .25s ease;
}
.float-cta p{font-size:13px;color:var(--text-soft);line-height:1.6;flex:1}
.float-cta .btn{height:40px;padding:0 16px;font-size:13px}
.float-cta .close{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--muted);cursor:pointer;transition:color .2s ease,background-color .2s ease;
}
.float-cta .close:hover{color:var(--text);background:rgba(255,255,255,.12)}
.float-cta.is-hidden{opacity:0;transform:translateY(12px);pointer-events:none}

/* mobile tab */
.mobile-tab{display:none}
@media (max-width:1024px){
  .nav-links{display:none}
  .head-inner{height:64px;gap:14px}
  .head-actions{margin-left:auto}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;padding:32px 28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    height:64px;padding-bottom:env(safe-area-inset-bottom);
    background:rgba(5,14,18,.9);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-top:1px solid var(--line);
  }
  .mobile-tab a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:11px;color:var(--muted);transition:color .2s ease;
  }
  .mobile-tab a svg{width:20px;height:20px}
  .mobile-tab a:hover{color:var(--text)}
  .mobile-tab a.is-active{color:var(--primary)}
  .mobile-tab a.is-active svg{filter:drop-shadow(0 0 6px rgba(46,230,197,.7))}
  body{padding-bottom:140px}
  .float-cta{left:16px;right:16px;bottom:76px;width:auto;max-width:none}
}
@media (max-width:768px){
  .page-banner{padding:36px 0 32px}
  .article-shell{padding:40px 0 56px}
  .article-panel{padding:24px 20px 30px}
  .article-body{font-size:16px;line-height:1.85}
  .related-grid{grid-template-columns:1fr}
  .related-block{padding-bottom:56px}
  .cta-block{padding-bottom:64px}
  .site-foot{padding:48px 0 24px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:8px}
  .float-cta p{font-size:12px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .head-actions .btn{height:38px;padding:0 15px;font-size:13px}
  .article-meta{font-size:12px;gap:8px}
  .article-body h2{font-size:1.2rem}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .back-row .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* roulang page: category1 */
:root{
  --ink-900:#050E12;
  --ink-800:#07181E;
  --ink-700:#0B252D;
  --main:#2EE6C5;
  --main-deep:#17B8A6;
  --copper:#F0B35C;
  --text:#E9F7F4;
  --muted:#9CB6BC;
  --line:rgba(180,236,228,0.16);
  --glass:rgba(12,37,45,0.64);
  --glass-line:rgba(180,236,228,0.18);
  --success:#72E6A5;
  --error:#FF8C7A;
  --r-sm:12px;
  --r:18px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow:0 18px 48px rgba(0,0,0,0.35);
  --shadow-glow:0 0 0 1px rgba(46,230,197,0.35), 0 12px 36px rgba(46,230,197,0.28);
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --font:-apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    repeating-linear-gradient(0deg, rgba(180,236,228,0.035) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(180,236,228,0.035) 0 1px, transparent 1px 64px);
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:600;letter-spacing:.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:50px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),filter var(--ease),color var(--ease);
}
.btn .arrow{width:16px;height:16px;transition:transform var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{
  background:linear-gradient(135deg,#2EE6C5,#17B8A6);
  color:#04201D;
  font-weight:700;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.07);box-shadow:0 0 0 1px rgba(46,230,197,.55), 0 16px 44px rgba(46,230,197,.34)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.98)}
.btn-ghost{
  background:rgba(12,37,45,0.6);
  border:1px solid var(--glass-line);
  color:var(--text);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(46,230,197,.55);background:rgba(46,230,197,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,14,18,0.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:none;
  display:grid;place-items:center;
  border-radius:12px;
  color:var(--main);
  background:linear-gradient(135deg,rgba(46,230,197,.2),rgba(23,184,166,.06));
  border:1px solid rgba(46,230,197,.3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.16;min-width:0}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;
  padding:8px 15px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--muted);
}
.nav-links a:hover{color:var(--text);background:rgba(46,230,197,.08)}
.nav-links a.is-active{color:var(--main);background:rgba(46,230,197,.1);box-shadow:inset 0 0 0 1px rgba(46,230,197,.22)}
.head-actions{display:flex;align-items:center;gap:12px}

/* ---------- 内页头部 ---------- */
.page-hero{
  position:relative;
  padding:56px 0 60px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
  background:
    radial-gradient(900px 340px at 12% -10%, rgba(46,230,197,.14), transparent 70%),
    radial-gradient(700px 300px at 96% 0%, rgba(240,179,92,.08), transparent 72%),
    linear-gradient(180deg, #07181E 0%, #050E12 100%);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-160px;top:-120px;
  width:520px;height:520px;
  border-radius:50%;
  border:1px solid rgba(46,230,197,.1);
  box-shadow:0 0 0 60px rgba(46,230,197,.03), 0 0 0 140px rgba(46,230,197,.02);
  opacity:.7;
  pointer-events:none;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
.crumbs a:hover{color:var(--main)}
.crumbs .sep{opacity:.45}
.crumbs .now{color:var(--text)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--copper);
  background:rgba(240,179,92,.12);
  border:1px solid rgba(240,179,92,.28);
}
.page-hero h1{
  margin:18px 0 0;
  font-size:clamp(2rem,4vw,3.1rem);
  line-height:1.14;
  font-weight:700;
  max-width:22ch;
}
.page-hero h1 em{font-style:normal;color:var(--main)}
.hero-lead{
  margin-top:20px;
  max-width:720px;
  color:var(--muted);
  font-size:16.5px;
  line-height:1.85;
}
.pill-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.pill-nav a{
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--glass-line);
  background:rgba(12,37,45,.5);
  font-size:14px;
  color:var(--muted);
  transition:all var(--ease);
}
.pill-nav a:hover{color:var(--main);border-color:rgba(46,230,197,.5);background:rgba(46,230,197,.08);transform:translateY(-1px)}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0}
.section-tight{padding:56px 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head .kicker{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.2em;
  color:var(--copper);
  margin-bottom:14px;
}
.sec-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.24}
.sec-head p{margin-top:14px;color:var(--muted);font-size:15.5px}

/* ---------- 能力索引主体 ---------- */
.cap-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:52px;align-items:start}
.rail{
  position:sticky;
  top:96px;
  padding:22px;
  border-radius:var(--r);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
}
.rail h2{font-size:13px;letter-spacing:.18em;color:var(--copper);font-weight:600;margin-bottom:16px}
.rail ol{display:flex;flex-direction:column;gap:2px}
.rail li a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;
  border-radius:10px;
  font-size:14px;
  color:var(--muted);
  transition:all var(--ease);
}
.rail li a span{font-variant-numeric:tabular-nums;font-size:12px;color:rgba(156,182,188,.6)}
.rail li a:hover{color:var(--main);background:rgba(46,230,197,.08);transform:translateX(2px)}
.rail .rail-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);line-height:1.7;
}
.cap-list{display:flex;flex-direction:column}
.cap-item{
  display:grid;
  grid-template-columns:64px 54px minmax(0,1fr) 178px;
  gap:22px;
  align-items:center;
  padding:26px 18px;
  margin:0 -18px;
  border-bottom:1px solid var(--line);
  border-radius:14px;
  scroll-margin-top:100px;
  transition:background var(--ease),border-color var(--ease);
}
.cap-item:hover{background:rgba(46,230,197,.055)}
.cap-num{
  font-size:26px;font-weight:700;
  color:rgba(156,182,188,.42);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  transition:color var(--ease);
}
.cap-item:hover .cap-num{color:var(--main)}
.cap-icon{
  width:54px;height:54px;
  display:grid;place-items:center;
  border-radius:14px;
  color:var(--main);
  background:linear-gradient(135deg,rgba(46,230,197,.16),rgba(12,37,45,.4));
  border:1px solid rgba(46,230,197,.24);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
.cap-icon svg{width:22px;height:22px}
.cap-body h3{font-size:20px;font-weight:600}
.cap-body p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.78;max-width:56ch}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  padding:4px 11px;
  border-radius:8px;
  font-size:12.5px;
  color:#BFEDE4;
  background:rgba(46,230,197,.1);
  border:1px solid rgba(46,230,197,.2);
}
.tag.warm{color:var(--copper);background:rgba(240,179,92,.1);border-color:rgba(240,179,92,.24)}
.cap-thumb img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:12px;
  border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease);
}
.cap-item:hover .cap-thumb img{transform:scale(1.02);border-color:rgba(46,230,197,.4)}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.stat{background:linear-gradient(180deg,#0B252D,#07181E);padding:26px 24px}
.stat b{
  display:block;
  font-size:30px;font-weight:700;color:var(--main);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  letter-spacing:.01em;
}
.stat b i{font-style:normal;font-size:15px;color:var(--muted);margin-left:4px;font-weight:500}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}

/* ---------- 接入资料 ---------- */
.access-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;
  border-radius:var(--r-sm);
  background:rgba(12,37,45,.5);
  border:1px solid var(--line);
  transition:border-color var(--ease),background var(--ease),transform var(--ease);
}
.check-list li:hover{border-color:rgba(46,230,197,.4);background:rgba(46,230,197,.06);transform:translateY(-2px)}
.check-list .dot{
  flex:none;width:20px;height:20px;margin-top:3px;
  display:grid;place-items:center;
  border-radius:6px;
  background:rgba(46,230,197,.14);
  border:1px solid rgba(46,230,197,.34);
  color:var(--main);
}
.check-list .dot svg{width:12px;height:12px}
.check-list strong{display:block;font-size:15px;font-weight:600}
.check-list p{margin-top:4px;font-size:14px;color:var(--muted);line-height:1.7}
.access-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
}
.access-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.access-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,14,18,.05) 30%,rgba(5,14,18,.82) 100%);
}
.access-caption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:13.5px;color:#CFE9E4;line-height:1.7;
}

/* ---------- 转化面板 ---------- */
.cta-wrap{padding:64px 0 88px}
.cta-panel{
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
  padding:44px;
  border-radius:24px;
  background:
    radial-gradient(600px 220px at 8% 0%, rgba(46,230,197,.16), transparent 70%),
    linear-gradient(135deg, rgba(12,37,45,.92), rgba(7,24,30,.86));
  border:1px solid rgba(46,230,197,.26);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.07);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.cta-panel h2{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.28;max-width:24ch}
.cta-panel p{margin-top:12px;color:var(--muted);font-size:15px;max-width:46ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-foot{
  background:#04090C;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  position:relative;
  overflow:hidden;
}
.site-foot::before{
  content:"";
  position:absolute;left:50%;bottom:-260px;transform:translateX(-50%);
  width:900px;height:420px;border-radius:50%;
  background:radial-gradient(circle, rgba(46,230,197,.08), transparent 70%);
  pointer-events:none;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;position:relative;z-index:1}
.foot-brand p{margin-top:16px;color:var(--muted);font-size:14px;line-height:1.8;max-width:320px}
.foot-col h4{font-size:14px;letter-spacing:.1em;color:var(--text);margin-bottom:16px;font-weight:600}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{color:var(--muted);font-size:14px}
.foot-col a:hover{color:var(--main)}
.foot-col p{color:var(--muted);font-size:14px;line-height:1.8;margin-bottom:8px}
.foot-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;
  border-top:1px solid var(--line);
  color:var(--muted);font-size:13px;
  position:relative;z-index:1;
}

/* ---------- 固定转化条 ---------- */
.float-bar{
  position:fixed;
  right:24px;bottom:24px;
  z-index:65;
  width:360px;
  display:flex;align-items:center;gap:12px;
  padding:14px 14px 14px 18px;
  border-radius:16px;
  background:rgba(12,37,45,.86);
  border:1px solid rgba(46,230,197,.28);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:opacity var(--ease),transform var(--ease);
}
.float-bar.is-hidden{opacity:0;transform:translateY(12px);pointer-events:none}
.float-bar .fb-text{flex:1;min-width:0;font-size:13.5px;line-height:1.55;color:#D7EEEA}
.float-bar .fb-text b{display:block;color:var(--text);font-weight:600;font-size:14px}
.float-bar .btn{height:40px;padding:0 16px;font-size:13.5px;flex:none}
.fb-close{
  width:26px;height:26px;flex:none;
  display:grid;place-items:center;border-radius:8px;
  color:var(--muted);
  transition:color var(--ease),background var(--ease);
}
.fb-close:hover{color:var(--text);background:rgba(180,236,228,.1)}
.fb-close svg{width:14px;height:14px}

/* ---------- 移动底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:none;
  height:calc(64px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(5,14,18,.9);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
}
.tabbar nav{display:flex;height:64px}
.tabbar a{
  flex:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;
  color:var(--muted);
  transition:color var(--ease);
}
.tabbar a svg{width:20px;height:20px}
.tabbar a:hover{color:var(--text)}
.tabbar a.is-active{color:var(--main)}
.tabbar a.is-active svg{filter:drop-shadow(0 0 6px rgba(46,230,197,.6))}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .cap-layout{grid-template-columns:220px minmax(0,1fr);gap:36px}
  .cap-item{grid-template-columns:56px 50px minmax(0,1fr) 150px;gap:18px}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .head-actions{margin-left:auto}
  .tabbar{display:block}
  body{padding-bottom:150px}
  .float-bar{
    right:16px;left:16px;width:auto;
    bottom:calc(64px + env(safe-area-inset-bottom) + 12px);
  }
  .cap-layout{grid-template-columns:1fr;gap:28px}
  .rail{position:static;display:none}
  .access-grid{grid-template-columns:1fr;gap:32px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
}
@media (max-width:768px){
  .head-inner{height:64px;gap:14px}
  .brand-name{font-size:15px}
  .brand-sub{font-size:10px;letter-spacing:.1em}
  .brand-mark{width:34px;height:34px;border-radius:10px}
  .page-hero{padding:36px 0 44px}
  .page-hero h1{font-size:clamp(1.7rem,7vw,2.2rem);max-width:none}
  .hero-lead{font-size:15px;margin-top:16px}
  .pill-nav{gap:8px;margin-top:22px}
  .pill-nav a{font-size:13px;padding:7px 13px}
  .section{padding:52px 0}
  .cap-item{
    grid-template-columns:44px minmax(0,1fr);
    gap:14px;
    padding:22px 14px;
    margin:0 -14px;
    align-items:start;
  }
  .cap-num{font-size:20px;grid-row:1}
  .cap-icon{display:none}
  .cap-body{grid-column:2}
  .cap-thumb{display:none}
  .cap-body h3{font-size:17.5px}
  .cap-body p{font-size:14.5px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat{padding:20px 18px}
  .stat b{font-size:24px}
  .cta-panel{padding:28px 22px;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-width:140px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .head-actions .btn{height:38px;padding:0 14px;font-size:13px}
  .cta-actions .btn{width:100%;flex:none}
  .float-bar{height:auto;padding:10px 10px 10px 14px}
  .float-bar .fb-text b{font-size:13px}
  .float-bar .fb-text span{display:none}
  .tag{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* roulang page: category2 */
:root{
  --ink:#050E12;
  --ink-2:#07181E;
  --ink-3:#0B252D;
  --brand:#2EE6C5;
  --brand-deep:#17B8A6;
  --copper:#F0B35C;
  --text:#E9F7F4;
  --muted:#9CB6BC;
  --line:rgba(180,236,228,.16);
  --line-strong:rgba(180,236,228,.28);
  --glass:rgba(12,37,45,.64);
  --glass-soft:rgba(12,37,45,.42);
  --ok:#72E6A5;
  --warn:#F0B35C;
  --err:#FF8C7A;
  --focus:#F0B35C;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --shadow-card:0 18px 48px rgba(0,0,0,.35);
  --shadow-btn:0 0 0 1px rgba(46,230,197,.35),0 12px 36px rgba(46,230,197,.28);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--ink);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    repeating-linear-gradient(to right,rgba(180,236,228,.05) 0 1px,transparent 1px 88px),
    repeating-linear-gradient(to bottom,rgba(180,236,228,.05) 0 1px,transparent 1px 88px);
  opacity:.55;
}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.2}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:2;
}
/* ============ 头部导航 ============ */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,14,18,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.head-inner{
  display:flex;
  align-items:center;
  gap:32px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  color:var(--brand);
  background:linear-gradient(150deg,rgba(46,230,197,.18),rgba(46,230,197,.04));
  border:1px solid rgba(46,230,197,.32);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-mark svg{width:21px;height:21px}
.brand-text{display:flex;flex-direction:column;line-height:1.18}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  padding:10px 16px;
  font-size:15px;
  color:var(--muted);
  border-radius:999px;
  transition:color var(--ease),background var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(46,230,197,.07)}
.nav-links a.is-active{color:var(--brand);background:rgba(46,230,197,.10)}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  transform:translateX(-50%);
  width:18px;height:2px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(46,230,197,.75);
}
.head-actions{display:flex;align-items:center;gap:12px}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  border:none;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn .arrow{width:17px;height:17px;transition:transform var(--ease)}
.btn-primary{
  color:#04201D;
  background:linear-gradient(135deg,#2EE6C5,#17B8A6);
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{
  color:#04201D;
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(46,230,197,.5),0 16px 44px rgba(46,230,197,.4);
}
.btn-primary:hover .arrow{transform:translateX(3px)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.97)}
.btn-ghost{
  color:var(--text);
  background:rgba(12,37,45,.55);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{
  color:var(--brand);
  border-color:rgba(46,230,197,.55);
  background:rgba(46,230,197,.08);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
/* ============ 页面头部 ============ */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 320px at 18% -10%,rgba(46,230,197,.14),transparent 70%),
    linear-gradient(180deg,var(--ink-3) 0%,var(--ink) 100%);
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-160px;top:-140px;
  width:560px;height:560px;
  border-radius:50%;
  border:1px solid rgba(46,230,197,.14);
  box-shadow:0 0 120px rgba(46,230,197,.06) inset;
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-40px;top:40px;
  width:360px;height:360px;
  border-radius:50%;
  border:1px solid rgba(240,179,92,.10);
  pointer-events:none;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{opacity:.5}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--copper);
  background:rgba(240,179,92,.12);
  border:1px solid rgba(240,179,92,.32);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;
  align-items:end;
}
.page-hero h1{
  margin:18px 0 20px;
  font-size:clamp(2rem,3.6vw,3rem);
  line-height:1.14;
  max-width:16em;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--brand);
}
.lede{
  max-width:640px;
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
}
.hero-side{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:22px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.hero-side p{font-size:13px;color:var(--muted);line-height:1.7}
.side-stat{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-variant-numeric:tabular-nums;
}
.side-stat strong{font-size:28px;font-weight:700;color:var(--brand);line-height:1}
.side-stat span{font-size:13px;color:var(--muted)}
/* ============ 场景切换胶囊 ============ */
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:34px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  background:rgba(12,37,45,.55);
  border:1px solid var(--line);
  cursor:pointer;
  transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(46,230,197,.45);transform:translateY(-1px)}
.chip.is-active{
  color:#04201D;
  background:linear-gradient(135deg,#2EE6C5,#17B8A6);
  border-color:transparent;
  box-shadow:0 8px 26px rgba(46,230,197,.28);
}
.chip .dot{
  width:6px;height:6px;border-radius:50%;
  background:currentColor;opacity:.7;
}
/* ============ 场景主体 ============ */
.section{padding:88px 0;position:relative;z-index:1}
.section-tight{padding-top:0}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{font-size:clamp(1.6rem,2.6vw,2.2rem);margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:15.5px;line-height:1.85}
.scene-layout{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:32px;
  align-items:stretch;
}
.scene-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--ink-2);
  box-shadow:var(--shadow-card);
  min-height:420px;
}
.scene-media img{
  width:100%;height:100%;
  object-fit:cover;
  position:absolute;inset:0;
  transition:transform 500ms ease;
}
.scene-media:hover img{transform:scale(1.03)}
.scene-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,14,18,.1) 0%,rgba(5,14,18,.55) 58%,rgba(5,14,18,.92) 100%);
}
.media-caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:26px 26px 24px;
  z-index:2;
}
.media-caption .cap-label{
  display:inline-block;
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--copper);
  margin-bottom:10px;
}
.media-caption h3{font-size:20px;margin-bottom:8px}
.media-caption p{font-size:13.5px;color:var(--muted);line-height:1.7;max-width:34em}
.media-metrics{
  display:flex;
  gap:10px;
  margin-top:16px;
  flex-wrap:wrap;
}
.metric-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  font-size:12.5px;
  color:var(--text);
  border-radius:999px;
  background:rgba(12,37,45,.72);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(10px);
  font-variant-numeric:tabular-nums;
}
.metric-pill b{color:var(--brand);font-weight:700}
/* 时间线 */
.timeline-card{
  padding:30px 28px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  display:flex;
  flex-direction:column;
  gap:6px;
}
.timeline-card > h3{font-size:16px;color:var(--text);margin-bottom:6px;letter-spacing:.02em}
.timeline-card > .tl-note{font-size:13px;color:var(--muted);margin-bottom:14px}
.timeline{position:relative;padding-left:34px;display:flex;flex-direction:column;gap:26px}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;top:6px;bottom:6px;
  width:1px;
  background:linear-gradient(180deg,rgba(46,230,197,.6),rgba(46,230,197,.06));
}
.step{position:relative}
.step-num{
  position:absolute;
  left:-34px;top:0;
  width:24px;height:24px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:11.5px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--brand);
  background:rgba(46,230,197,.12);
  border:1px solid rgba(46,230,197,.45);
  box-shadow:0 0 16px rgba(46,230,197,.22);
}
.step h4{font-size:15.5px;margin-bottom:6px;font-weight:600}
.step p{font-size:13.8px;color:var(--muted);line-height:1.75}
.step-list[hidden]{display:none}
.tl-cta{margin-top:auto;padding-top:22px}
/* ============ 场景入口网格 ============ */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.entry-card{
  position:relative;
  padding:28px 28px 24px;
  border-radius:var(--r-md);
  background:rgba(11,37,45,.55);
  border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
  display:flex;
  flex-direction:column;
  gap:12px;
  overflow:hidden;
}
.entry-card::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,197,.6),transparent);
  opacity:0;
  transition:opacity var(--ease);
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,230,197,.35);
  background:rgba(12,37,45,.78);
  box-shadow:var(--shadow-card);
}
.entry-card:hover::before{opacity:1}
.entry-top{display:flex;align-items:center;gap:12px}
.entry-icon{
  width:40px;height:40px;
  border-radius:12px;
  display:grid;place-items:center;
  color:var(--brand);
  background:rgba(46,230,197,.08);
  border:1px solid rgba(46,230,197,.26);
  flex-shrink:0;
}
.entry-icon svg{width:20px;height:20px}
.entry-num{
  margin-left:auto;
  font-size:13px;
  font-weight:700;
  color:var(--copper);
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
}
.entry-card h3{font-size:18px;margin-top:2px}
.entry-card p{font-size:14px;color:var(--muted);line-height:1.8}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 11px;
  border-radius:8px;
  font-size:12px;
  color:var(--muted);
  background:rgba(180,236,228,.06);
  border:1px solid var(--line);
}
.entry-link{
  margin-top:auto;
  padding-top:8px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13.5px;
  font-weight:600;
  color:var(--brand);
}
.entry-link svg{width:14px;height:14px;transition:transform var(--ease)}
.entry-card:hover .entry-link svg{transform:translateX(3px)}
/* ============ 指标条 ============ */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--line);
}
.stat{
  padding:26px 24px;
  background:rgba(7,24,30,.9);
  transition:background var(--ease);
}
.stat:hover{background:rgba(12,37,45,.9)}
.stat b{
  display:block;
  font-size:clamp(1.5rem,2.4vw,2rem);
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  margin-bottom:6px;
}
.stat span{font-size:13px;color:var(--muted);line-height:1.6;display:block}
/* ============ 提示条 ============ */
.notice{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:18px 22px;
  margin-top:26px;
  border-radius:var(--r-md);
  background:rgba(240,179,92,.08);
  border:1px solid rgba(240,179,92,.28);
}
.notice-icon{color:var(--copper);flex-shrink:0;margin-top:2px}
.notice-icon svg{width:18px;height:18px}
.notice p{font-size:13.8px;color:var(--text);line-height:1.75;opacity:.9}
/* ============ FAQ ============ */
.faq-wrap{
  max-width:900px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq-item{
  border-radius:var(--r-md);
  background:var(--glass-soft);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(46,230,197,.28)}
.faq-item.is-open{
  border-color:rgba(46,230,197,.32);
  background:rgba(12,37,45,.72);
}
.faq-q{
  width:100%;
  min-height:56px;
  padding:14px 22px;
  display:flex;
  align-items:center;
  gap:16px;
  text-align:left;
  background:none;
  border:none;
  color:var(--text);
  font-size:15.5px;
  font-weight:600;
  line-height:1.6;
  cursor:pointer;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-plus{
  margin-left:auto;
  flex-shrink:0;
  width:20px;height:20px;
  position:relative;
  transition:transform var(--ease);
  color:var(--brand);
}
.faq-plus::before,.faq-plus::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:currentColor;
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-plus::before{width:14px;height:2px}
.faq-plus::after{width:2px;height:14px}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-a{
  display:none;
  padding:0 22px 18px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--muted);
}
.faq-item.is-open .faq-a{display:block}
/* ============ 表单 ============ */
.form-section{
  position:relative;
  padding:88px 0;
  overflow:hidden;
}
.form-section::before{
  content:"";
  position:absolute;
  left:50%;top:-40%;
  transform:translateX(-50%);
  width:900px;height:900px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,197,.10),transparent 62%);
  pointer-events:none;
}
.form-shell{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:40px;
  align-items:start;
}
.form-intro h2{font-size:clamp(1.6rem,2.6vw,2.1rem);margin-bottom:16px}
.form-intro p{color:var(--muted);font-size:15px;line-height:1.85}
.form-points{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.form-points li{
  display:flex;
  gap:12px;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}
.form-points .pt-dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(46,230,197,.7);
  flex-shrink:0;
  margin-top:9px;
}
.form-panel{
  padding:34px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{
  font-size:13px;
  font-weight:600;
  color:var(--text);
  letter-spacing:.02em;
}
.field label .req{color:var(--copper);margin-left:2px}
.field input,.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  font-family:inherit;
  font-size:14.5px;
  color:var(--text);
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{
  height:auto;
  min-height:118px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(156,182,188,.55)}
.field input:hover,.field textarea:hover{border-color:rgba(180,236,228,.34)}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:var(--ink-3);
  box-shadow:0 0 0 3px rgba(46,230,197,.12);
}
.field.is-error input,.field.is-error textarea{
  border-color:var(--err);
  box-shadow:0 0 0 3px rgba(255,140,122,.10);
}
.err-msg{
  min-height:16px;
  font-size:12.5px;
  color:var(--err);
  line-height:1.4;
}
.form-foot{
  margin-top:22px;
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}
.form-foot .hint{font-size:12.5px;color:var(--muted);line-height:1.6}
.form-alert{
  display:none;
  margin-top:20px;
  padding:14px 18px;
  border-radius:var(--r-sm);
  font-size:13.5px;
  line-height:1.7;
  color:var(--ok);
  background:rgba(114,230,165,.10);
  border:1px solid rgba(114,230,165,.38);
}
.form-alert.is-show{display:block}
/* ============ 底部转化区 ============ */
.cta-band{
  padding:0 0 96px;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:38px 40px;
  border-radius:var(--r-lg);
  background:
    radial-gradient(600px 200px at 88% 0%,rgba(46,230,197,.16),transparent 70%),
    rgba(12,37,45,.7);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.cta-inner h2{font-size:clamp(1.4rem,2.2vw,1.85rem);margin-bottom:10px}
.cta-inner p{font-size:14.5px;color:var(--muted);line-height:1.7;max-width:34em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}
/* ============ 页脚 ============ */
.site-foot{
  position:relative;
  padding:72px 0 32px;
  background:#04090C;
  border-top:1px solid rgba(46,230,197,.18);
  overflow:hidden;
}
.site-foot::before{
  content:"";
  position:absolute;
  left:-140px;bottom:-240px;
  width:620px;height:620px;
  border-radius:50%;
  border:1px solid rgba(46,230,197,.07);
  box-shadow:0 0 160px rgba(46,230,197,.05) inset;
  pointer-events:none;
}
.site-foot::after{
  content:"";
  position:absolute;
  right:-100px;bottom:-200px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(180,236,228,.06);
  pointer-events:none;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
  position:relative;
  z-index:2;
}
.foot-brand p{
  margin-top:18px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.8;
  max-width:32em;
}
.foot-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:13.5px;color:var(--muted)}
.foot-col a:hover{color:var(--brand)}
.foot-col p{font-size:13.5px;color:var(--muted);line-height:1.85;margin-bottom:8px}
.foot-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(180,236,228,.10);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(156,182,188,.75);
  position:relative;
  z-index:2;
}
/* ============ 固定转化条 ============ */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  width:360px;
  max-width:calc(100vw - 48px);
  padding:16px 18px;
  border-radius:var(--r-md);
  background:rgba(10,32,40,.88);
  border:1px solid rgba(46,230,197,.28);
  box-shadow:0 18px 48px rgba(0,0,0,.5);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  z-index:70;
  display:flex;
  align-items:center;
  gap:14px;
  transition:opacity var(--ease),transform var(--ease);
}
.float-cta.is-hidden{opacity:0;transform:translateY(14px);pointer-events:none}
.float-cta .fc-text{font-size:13.5px;line-height:1.55;color:var(--text);flex:1}
.float-cta .fc-text b{color:var(--brand);display:block;font-size:13.5px;margin-bottom:2px}
.float-cta .fc-close{
  position:absolute;
  top:6px;right:6px;
  width:22px;height:22px;
  display:grid;place-items:center;
  background:none;border:none;
  color:var(--muted);
  cursor:pointer;
  border-radius:6px;
  transition:color var(--ease),background var(--ease);
}
.float-cta .fc-close:hover{color:var(--text);background:rgba(255,255,255,.08)}
.float-cta .fc-close svg{width:12px;height:12px}
/* ============ 移动底部 Tab ============ */
.m-tab{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  height:calc(64px + env(safe-area-inset-bottom,0px));
  padding-bottom:env(safe-area-inset-bottom,0px);
  background:rgba(5,14,18,.92);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-top:1px solid var(--line);
  z-index:80;
}
.m-tab-inner{
  height:64px;
  display:grid;
  grid-template-columns:repeat(5,1fr);
  align-items:center;
}
.m-tab a{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  font-size:11px;
  color:var(--muted);
  height:100%;
  transition:color var(--ease);
}
.m-tab a svg{width:20px;height:20px}
.m-tab a.is-active{color:var(--brand)}
.m-tab a.is-active svg{filter:drop-shadow(0 0 6px rgba(46,230,197,.7))}
/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{display:none}
  .head-actions{margin-left:auto}
  .m-tab{display:block}
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom,0px))}
  .hero-grid{grid-template-columns:1fr;gap:32px;align-items:start}
  .page-hero{padding:44px 0 52px}
  .scene-layout{grid-template-columns:1fr}
  .scene-media{min-height:340px}
  .form-shell{grid-template-columns:1fr;gap:32px}
  .entry-grid{grid-template-columns:1fr 1fr}
  .section{padding:64px 0}
  .form-section{padding:64px 0}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px}
  .float-cta{
    right:16px;left:16px;
    bottom:calc(64px + env(safe-area-inset-bottom,0px) + 12px);
    width:auto;
    max-width:none;
  }
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .site-foot{padding:56px 0 120px}
  .cta-band{padding-bottom:72px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .head-inner{min-height:64px;gap:16px}
  .brand-name{font-size:15px}
  .brand-mark{width:34px;height:34px;border-radius:10px}
  .page-hero h1{font-size:clamp(1.75rem,6.4vw,2.3rem);max-width:none}
  .lede{font-size:15px}
  .chip{height:38px;padding:0 16px;font-size:13.5px}
  .entry-grid{grid-template-columns:1fr}
  .stats-band{grid-template-columns:1fr 1fr}
  .stat{padding:22px 18px}
  .timeline-card{padding:24px 20px}
  .form-panel{padding:24px 20px}
  .form-grid{grid-template-columns:1fr}
  .faq-q{font-size:14.5px;padding:14px 18px;min-height:54px}
  .faq-a{padding:0 18px 16px;font-size:14px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:560px){
  .section{padding:48px 0}
  .form-section{padding:52px 0}
  .head-actions .btn{padding:0 16px;font-size:13.5px;height:38px}
  .brand-sub{display:none}
  .m-tab a svg{width:18px;height:18px}
  .m-tab a{font-size:10.5px}
  .btn{height:48px;padding:0 22px;font-size:14.5px}
  .btn-block-sm{width:100%}
  .scene-media{min-height:300px}
  .media-caption{padding:20px 18px}
  .media-caption h3{font-size:17px}
  .entry-card{padding:22px 20px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .float-cta .fc-text{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}