/* roulang page: index */
:root{
  --bg-0:#060A13;
  --bg-1:#0B1220;
  --glass:rgba(18,28,48,.55);
  --line:rgba(140,180,255,.12);
  --brand:#2FE3B0;
  --brand-2:#4C8DFF;
  --accent:#FFB020;
  --text-1:#EAF1FF;
  --text-2:#A9B7CE;
  --text-3:#6E7D96;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --font-cn:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:Inter,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bs-primary:#2FE3B0;
  --bs-body-bg:#060A13;
  --bs-body-color:#EAF1FF;
  --bs-border-color:rgba(140,180,255,.12);
  --bs-border-radius:14px;
  --bs-link-color:#2FE3B0;
  --bs-link-hover-color:#6BF0C6;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(140,180,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,180,255,.045) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(circle at 25% 5%,#000 0%,transparent 68%);
  mask-image:radial-gradient(circle at 25% 5%,#000 0%,transparent 68%);
}
main,header,footer{position:relative;z-index:1}
h1,h2,h3,h4,h5{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.01em}
p{margin:0}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:#6BF0C6}
ul{list-style:none;margin:0;padding:0}
button{font-family:inherit}

a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{
  outline:2px solid rgba(47,227,176,.85);
  outline-offset:2px;
  border-radius:8px;
}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--brand);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:14px;height:2px;background:var(--brand);border-radius:2px;display:block}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.section-title{font-size:clamp(23px,2.6vw,34px);line-height:1.25;margin-top:12px}
.section-desc{margin-top:14px;font-size:15px;color:var(--text-2);max-width:640px}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-plain{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;border-radius:999px;padding:12px 26px;cursor:pointer;transition:all 180ms cubic-bezier(.2,.7,.3,1);text-decoration:none;white-space:nowrap}
.btn-main{background:var(--brand);color:#04140F;border:1px solid transparent;box-shadow:0 0 0 1px rgba(47,227,176,.5),0 12px 34px -10px rgba(47,227,176,.45)}
.btn-main:hover{color:#04140F;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,227,176,.72),0 18px 44px -10px rgba(47,227,176,.6)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  border:1px solid rgba(255,255,255,.12);
  color:var(--text-1);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{color:var(--text-1);background:rgba(255,255,255,.07);border-color:rgba(47,227,176,.42)}
.btn-plain{background:transparent;border:1px solid rgba(140,180,255,.2);color:var(--text-2);padding:10px 22px}
.btn-plain:hover{color:var(--brand);border-color:rgba(47,227,176,.45)}
.link-cta{position:relative;font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-cta::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform 200ms cubic-bezier(.2,.7,.3,1)}
.link-cta:hover::after{transform:scaleX(1)}

.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  font-size:12px;
  line-height:1.6;
  color:var(--brand);
  background:rgba(47,227,176,.08);
  border:1px solid rgba(47,227,176,.3);
  border-radius:999px;
  white-space:nowrap;
}
.badge-pill.blue{color:var(--brand-2);background:rgba(76,141,255,.08);border-color:rgba(76,141,255,.3)}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(8,13,24,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-nav.scrolled{background:rgba(8,13,24,.92);box-shadow:0 14px 34px -22px rgba(0,0,0,.95)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
.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:hover{color:var(--text-1)}
.brand-mark{width:30px;height:30px;flex:0 0 30px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--text-2);border-radius:8px;transition:color .18s ease}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:center;transition:transform .2s ease}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:8px}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:230px;
  height:40px;
  padding:0 12px;
  border-radius:var(--radius-sm);
  background:var(--glass);
  border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(14px);
  transition:width .25s cubic-bezier(.2,.7,.3,1),border-color .2s,box-shadow .2s;
}
.cmd-search:focus-within{width:300px;border-color:rgba(47,227,176,.55);box-shadow:0 0 0 3px rgba(47,227,176,.14)}
.cmd-search svg{flex:0 0 16px;opacity:.7}
.cmd-search input{flex:1;min-width:0;background:transparent;border:none;outline:none;color:var(--text-1);font-size:14px}
.cmd-search input::placeholder{color:var(--text-3)}
.cmd-search kbd{
  font-family:var(--font-num);
  font-size:11px;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  white-space:nowrap;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--radius-sm);
  background:var(--glass);
  border:1px solid rgba(255,255,255,.12);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .22s ease,opacity .22s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;
  left:0;right:0;top:0;bottom:0;
  z-index:1029;
  padding:96px 24px 32px;
  background:rgba(6,10,19,.97);
  backdrop-filter:blur(18px);
  display:flex;
  flex-direction:column;
  opacity:0;
  transform:translateY(-10px);
  pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}
.drawer.open{opacity:1;transform:none;pointer-events:auto}
.drawer a.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:52px;
  font-size:16px;
  color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.drawer a.drawer-link span{color:var(--text-3);font-size:13px}
.drawer .drawer-cta{margin-top:auto}

/* ---------- Hero ---------- */
.hero{position:relative;padding:88px 0 96px;overflow:hidden}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(ellipse 900px 520px at 10% -5%,rgba(47,227,176,.12),transparent 56%),
    radial-gradient(ellipse 720px 460px at 92% 18%,rgba(76,141,255,.1),transparent 58%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.15;letter-spacing:-.02em;font-weight:800;margin:18px 0 18px}
.hero-sub{font-size:17px;color:var(--text-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 36px}
.trust-row{display:flex;flex-wrap:wrap;gap:0;align-items:stretch}
.trust-row li{padding:0 24px;border-left:1px solid var(--line)}
.trust-row li:first-child{padding-left:0;border-left:none}
.trust-row strong{display:block;font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--brand);line-height:1.25}
.trust-row span{font-size:13px;color:var(--text-3)}

.hero-visual{position:relative;display:flex;justify-content:center;perspective:1400px}
.hero-card{
  position:relative;
  width:100%;
  max-width:460px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  transform:rotateY(-6deg);
  transition:transform .5s cubic-bezier(.2,.7,.3,1);
}
.hero-card:hover{transform:rotateY(0deg) translateY(-4px)}
.hero-card-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.3}
.hero-card-inner{position:relative}
.hero-card-media{aspect-ratio:16/10;overflow:hidden}
.hero-card-media img{width:100%;height:100%;object-fit:cover}
.hero-card-body{position:relative;padding:24px}
.hero-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.hero-card-time{font-family:var(--font-num);font-size:12px;color:var(--text-3)}
.hero-card-body h3{font-size:19px;line-height:1.45;font-weight:600}
.hero-card-body p{margin-top:12px;font-size:14px;color:var(--text-2)}
.progress-line{height:4px;border-radius:999px;background:rgba(140,180,255,.14);overflow:hidden;margin:18px 0 0}
.progress-line span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.float-tag{
  position:absolute;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  font-size:12.5px;
  color:var(--text-1);
  border-radius:999px;
  background:rgba(11,18,32,.82);
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 16px 30px -20px rgba(0,0,0,.95);
  backdrop-filter:blur(12px);
}
.float-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(47,227,176,.14)}
.float-tag .dot.blue{background:var(--brand-2);box-shadow:0 0 0 4px rgba(76,141,255,.14)}
.float-a{top:26px;left:-14px}
.float-b{bottom:34px;right:-10px}

/* ---------- 卖点三连 ---------- */
.point-row{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.point{position:relative;padding:38px 32px;transition:transform .22s ease}
.point+.point{border-left:1px solid var(--line)}
.point::before{content:"";position:absolute;top:-1px;left:32px;width:34px;height:2px;background:var(--brand);border-radius:2px}
.point:hover{transform:translateY(-2px)}
.point .num{font-family:var(--font-num);font-size:13px;letter-spacing:.16em;color:var(--text-3);transition:color .2s ease}
.point:hover .num{color:var(--brand)}
.point h3{margin:16px 0 10px;font-size:19px;font-weight:600}
.point p{font-size:14px;color:var(--text-2)}

/* ---------- 场景 ---------- */
.scene{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.scene+.scene{margin-top:88px}
.scene.flip .scene-media{order:2}
.scene-media{position:relative;border-radius:16px;overflow:hidden;border:1px solid rgba(47,227,176,.2);aspect-ratio:16/10;background:var(--bg-1)}
.scene-media img{width:100%;height:100%;object-fit:cover}
.scene h3{font-size:clamp(20px,2.1vw,26px);line-height:1.35}
.scene .scene-text{margin-top:16px;font-size:15px;color:var(--text-2)}
.check-list{display:grid;gap:10px;margin:22px 0 26px}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2)}
.check-list li::before{
  content:"✓";
  flex:0 0 18px;
  width:18px;height:18px;
  margin-top:6px;
  display:grid;
  place-items:center;
  font-size:11px;
  line-height:1;
  color:var(--brand);
  background:rgba(47,227,176,.14);
  border:1px solid rgba(47,227,176,.35);
  border-radius:50%;
}

/* ---------- 入口卡 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:28px;
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
  color:inherit;
  overflow:hidden;
  transition:transform .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-3px);border-color:rgba(47,227,176,.32);color:inherit}
.entry-card h3{font-size:21px;font-weight:600}
.entry-card p{font-size:14.5px;color:var(--text-2)}
.entry-card .entry-foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:14px;color:var(--brand);font-weight:600}
.entry-thumb{aspect-ratio:16/9;border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-1)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}

/* ---------- 资讯列表 ---------- */
.news-card{
  display:flex;
  flex-direction:column;
  height:100%;
  border-radius:var(--radius-lg);
  overflow:hidden;
  color:inherit;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(47,227,176,.3);color:inherit}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-1);position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{display:flex;flex-direction:column;gap:12px;padding:22px 24px 24px;flex:1}
.news-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body p{
  font-size:14px;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-num);
  font-size:13px;
  color:var(--text-3);
}
.news-meta .sep{opacity:.6}
.empty-state{
  min-height:220px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  text-align:center;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px dashed rgba(140,180,255,.22);
  color:var(--text-2);
  font-size:15px;
}
.empty-state svg{opacity:.75}

/* ---------- 社会认同 ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:32px;
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
}
.stat-band .num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand);line-height:1.2}
.stat-band .label{font-size:13px;color:var(--text-3);margin-top:4px}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.quote-card{
  position:relative;
  padding:26px;
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015)),var(--glass);
  border:1px solid rgba(255,255,255,.085);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
}
.quote-card .mark{font-family:var(--font-num);font-size:32px;line-height:1;color:rgba(47,227,176,.45)}
.quote-card p{margin:12px 0 18px;font-size:15px;color:var(--text-2)}
.quote-card .who{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.quote-card .who::before{content:"";width:16px;height:1px;background:var(--brand);display:block}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 0;
  background:none;
  border:none;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-ico{position:relative;flex:0 0 22px;width:22px;height:22px;transition:transform .25s ease}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--text-2);border-radius:2px;transition:background .2s ease}
.faq-ico::before{left:0;top:10px;width:22px;height:2px}
.faq-ico::after{left:10px;top:0;width:2px;height:22px}
.faq-q[aria-expanded="true"]{color:var(--brand)}
.faq-q[aria-expanded="true"] .faq-ico{transform:rotate(45deg)}
.faq-q[aria-expanded="true"] .faq-ico::before,.faq-q[aria-expanded="true"] .faq-ico::after{background:var(--brand)}
.faq-a{
  padding:0 0 24px 16px;
  margin-bottom:4px;
  border-left:3px solid var(--brand);
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  padding:56px 32px;
  text-align:center;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
}
.cta-panel::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0,rgba(47,227,176,.2),transparent 62%);pointer-events:none}
.cta-panel>*{position:relative}
.cta-panel h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.cta-panel p{margin:16px auto 28px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--text-1);font-size:17px;font-weight:700;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-2);max-width:320px}
.footer-title{font-size:12px;letter-spacing:.18em;color:var(--text-3);text-transform:uppercase;margin-bottom:16px}
.footer-link{display:block;font-size:14px;color:var(--text-2);padding:6px 0;transition:color .18s ease,transform .18s ease}
.footer-link:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact li{font-size:14px;color:var(--text-2);padding:6px 0;display:flex;align-items:center;gap:10px}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}
.social-row{display:flex;gap:12px}
.social-row a{display:grid;place-items:center;width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--line);background:rgba(255,255,255,.03);transition:.2s}
.social-row a:hover{border-color:rgba(47,227,176,.4);background:rgba(47,227,176,.08)}

/* ---------- 移动端底部条 ---------- */
.mobile-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(8,13,24,.88);
  backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(100%);
  opacity:0;
  transition:transform .2s ease,opacity .2s ease;
}
.mobile-bar.show{transform:none;opacity:1}
.mobile-bar span{font-size:13.5px;color:var(--text-2)}
.mobile-bar .btn-main{padding:10px 20px;font-size:14px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-inner{gap:40px}
  .hero-card{max-width:420px}
}
@media (max-width:991px){
  .shell{padding:0 20px}
  .section{padding:72px 0}
  .nav-links{display:none}
  .cmd-search{display:none}
  .nav-right{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:60px}
  .hero{padding:56px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-sub{max-width:none}
  .hero-card{transform:none;max-width:100%}
  .hero-card:hover{transform:translateY(-4px)}
  .float-a{left:8px;top:18px}
  .float-b{right:8px;bottom:24px}
  .point-row{grid-template-columns:1fr}
  .point+.point{border-left:none;border-top:1px solid var(--line)}
  .scene{grid-template-columns:1fr;gap:28px}
  .scene.flip .scene-media{order:0}
  .scene+.scene{margin-top:64px}
  .entry-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:repeat(2,1fr);padding:26px}
  .quote-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .mobile-bar{display:flex}
  .site-footer{padding-bottom:70px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  body{font-size:15.5px}
  .hero{padding:44px 0 60px}
  .hero h1{font-size:clamp(27px,7.4vw,34px)}
  .hero-actions .btn-main,.hero-actions .btn-ghost{flex:1 1 100%;justify-content:center}
  .trust-row{gap:12px 0}
  .trust-row li{padding:0 14px}
  .trust-row strong{font-size:22px}
  .section-head{margin-bottom:28px}
  .stat-band{grid-template-columns:1fr 1fr;gap:18px}
  .stat-band .num{font-size:24px}
  .cta-panel{padding:40px 20px;border-radius:18px}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{padding-bottom:26px}
  .mobile-bar span{max-width:54%;line-height:1.4}
  .cmd-search{display:none}
}
@media (max-width:520px){
  .shell{padding:0 16px}
  .brand{font-size:16px}
  .news-body{padding:18px 18px 20px}
  .entry-card{padding:22px}
  .faq-q{font-size:16px}
  .float-tag{font-size:11.5px;padding:6px 10px}
}

/* roulang page: article */
:root{
  --bg-0:#060A13;
  --bg-1:#0B1220;
  --glass:rgba(18,28,48,.55);
  --line:rgba(140,180,255,.12);
  --brand:#2FE3B0;
  --brand-2:#4C8DFF;
  --accent:#FFB020;
  --text-1:#EAF1FF;
  --text-2:#A9B7CE;
  --text-3:#6E7D96;
  --danger:#FF6B6B;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text-1);
  --bs-primary:var(--brand);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--radius-md);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:#63f0c7;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease)}
a:hover{color:var(--brand)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol{margin:0}
:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(47,227,176,.75),0 0 0 6px rgba(47,227,176,.18);border-radius:8px}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:Inter,ui-monospace,SFMono-Regular,Menlo,monospace}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:60;
  background:rgba(8,13,24,.72);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:17.5px;font-weight:700;letter-spacing:-.01em;color:var(--text-1);flex:0 0 auto}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand:hover{color:var(--text-1)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:6px}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;color:var(--text-2);
  border-radius:10px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;width:0;
  background:var(--brand);border-radius:2px;transition:width .22s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav-link:hover::after{width:16px}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{width:16px}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:236px;height:42px;padding:0 12px;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  background-color:var(--glass);
  border:1px solid rgba(255,255,255,.09);
  border-radius:999px;
  transition:width .25s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cmd-search:focus-within{width:316px;border-color:rgba(47,227,176,.55);box-shadow:0 0 0 3px rgba(47,227,176,.14)}
.cmd-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;font-size:14px;color:var(--text-1);
}
.cmd-search input::placeholder{color:var(--text-3)}
.cmd-search kbd{
  font-family:Inter,ui-monospace,monospace;font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;white-space:nowrap;
}
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-main{
  height:42px;padding:0 20px;font-size:15px;font-weight:600;color:#04140F;
  background:var(--brand);
  box-shadow:0 0 0 1px rgba(47,227,176,.5),0 12px 34px -10px rgba(47,227,176,.45);
}
.btn-main:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,227,176,.7),0 16px 40px -8px rgba(47,227,176,.6);color:#04140F}
.btn-main:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{
  height:42px;padding:0 18px;font-size:15px;color:var(--text-1);
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.12);
}
.btn-ghost:hover{background:rgba(255,255,255,.07);border-color:rgba(47,227,176,.4);color:var(--text-1)}
.btn-line{padding:0;font-size:15px;color:var(--brand);font-weight:600}
.btn-line span{border-bottom:1px solid rgba(47,227,176,.45);padding-bottom:2px;transition:border-color .2s var(--ease)}
.btn-line:hover span{border-color:var(--brand)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:1.8px;background:var(--text-1);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:60px 0 0;z-index:55;
  background:rgba(6,10,19,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:18px 24px 96px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  overflow-y:auto;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:52px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-link.active{color:var(--brand)}
.drawer-cta{position:fixed;left:24px;right:24px;bottom:calc(18px + env(safe-area-inset-bottom));display:flex}
.drawer-cta .btn-main{width:100%;height:48px}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:56px 0 40px;
  background:
    radial-gradient(900px 420px at 12% 0%,rgba(47,227,176,.10),transparent 55%),
    linear-gradient(180deg,rgba(255,255,255,.02),transparent 70%),
    var(--bg-0);
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.04;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:56px 56px;
}
.article-hero .shell{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:rgba(110,125,150,.6)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.18em;color:var(--text-2);text-transform:uppercase}
.eyebrow::before{content:"";width:14px;height:2px;background:var(--brand);border-radius:2px}
.article-title{
  margin:14px 0 0;
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.15;font-weight:800;letter-spacing:-.02em;
  max-width:22ch;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;font-size:13px;color:var(--text-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(110,125,150,.7)}
.meta-pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));background-color:var(--glass);
  border:1px solid rgba(47,227,176,.3);color:var(--brand)}

/* ---------- 正文布局 ---------- */
.section{padding:72px 0}
.article-section{padding:56px 0 40px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-body{max-width:760px;min-width:0;font-size:16px;line-height:1.9;color:#DCE6F7}
.article-body>*+*{margin-top:1.05em}
.article-body h2{
  position:relative;
  margin-top:2em;
  padding-left:14px;
  font-size:clamp(20px,2.2vw,25px);
  line-height:1.35;font-weight:700;color:var(--text-1);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;background:var(--brand);border-radius:2px}
.article-body h3{font-size:19px;line-height:1.4;font-weight:600;color:var(--text-1);margin-top:1.6em}
.article-body p{color:#D3DEF0}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(47,227,176,.35)}
.article-body a:hover{border-color:var(--brand)}
.article-body ul,.article-body ol{padding-left:1.25em;color:#D3DEF0}
.article-body li{margin:.45em 0}
.article-body li::marker{color:var(--brand)}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));background-color:var(--glass);
  border-left:3px solid var(--brand);border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--text-2);font-size:15.5px;
}
.article-body img{border-radius:16px;margin:1.4em 0;border:1px solid var(--line);width:100%;object-fit:cover}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{color:var(--text-1);font-weight:600;background:rgba(255,255,255,.03)}
.article-body td{color:var(--text-2)}
.article-body code{font-family:ui-monospace,monospace;font-size:14px;background:rgba(47,227,176,.10);color:#8CF3D4;padding:2px 6px;border-radius:6px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:260px;padding:36px 24px;text-align:center;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));background-color:var(--glass);
  border:1px solid rgba(255,255,255,.09);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
}
.empty-state h2{font-size:22px;font-weight:700}
.empty-state p{color:var(--text-2);font-size:15px}
.empty-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;border:1px solid rgba(47,227,176,.35);background:rgba(47,227,176,.08)}

/* 侧栏 */
.article-side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}
.side-card{
  padding:22px;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));background-color:var(--glass);
  border:1px solid rgba(255,255,255,.09);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.side-title{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:14px;height:2px;background:var(--brand);border-radius:2px}
.hot-list{list-style:none;padding:0;margin:0}
.hot-list li+li{border-top:1px solid var(--line)}
.hot-list a{display:flex;gap:12px;align-items:flex-start;padding:12px 0;font-size:14.5px;color:var(--text-2);line-height:1.6}
.hot-list a:hover{color:var(--brand)}
.hot-list .idx{font-family:Inter,ui-monospace,monospace;font-size:13px;color:var(--brand);flex:0 0 auto;padding-top:2px}
.cta-card{
  padding:24px;border-radius:var(--radius-lg);
  background:radial-gradient(420px 200px at 80% 0%,rgba(47,227,176,.16),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  background-color:var(--glass);
  border:1px solid rgba(47,227,176,.24);
  box-shadow:var(--shadow-card);
}
.cta-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.cta-card p{font-size:14px;color:var(--text-2);margin-bottom:18px}

/* 标签与相关 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;font-size:12.5px;
  color:var(--brand-2);border:1px solid rgba(76,141,255,.3);background:rgba(76,141,255,.07);
}
.tag:hover{color:#9CBCFF;border-color:rgba(76,141,255,.6)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.section-head h2{font-size:clamp(23px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-top:12px}
.section-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:62ch}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;height:100%;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));background-color:var(--glass);
  border:1px solid rgba(255,255,255,.09);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(47,227,176,.3)}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0d1526}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-cat{align-self:flex-start;height:24px;display:inline-flex;align-items:center;padding:0 11px;border-radius:999px;font-size:12px;color:var(--brand);border:1px solid rgba(47,227,176,.3);background:rgba(47,227,176,.07)}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--text-1)}
.rel-body p{font-size:14px;color:var(--text-2);line-height:1.7}
.rel-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);font-family:Inter,ui-monospace,monospace}
.rel-foot .arrow{color:var(--brand)}
.back-row{display:flex;justify-content:center;margin-top:38px}

/* 底部 CTA */
.cta-panel{
  position:relative;overflow:hidden;
  padding:56px 40px;border-radius:24px;text-align:center;
  background:radial-gradient(700px 320px at 50% 0%,rgba(47,227,176,.14),transparent 62%),
    linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  background-color:var(--glass);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(23px,2.6vw,32px);font-weight:700;line-height:1.3}
.cta-panel p{color:var(--text-2);font-size:15.5px;margin:14px auto 26px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* 页脚 */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);margin-top:72px;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:34ch}
.footer-title{font-size:12px;letter-spacing:.18em;color:var(--text-3);margin-bottom:14px}
.footer-link{display:block;font-size:14px;color:var(--text-2);padding:6px 0;transition:transform .18s var(--ease),color .18s var(--ease)}
.footer-link:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.social-row{display:flex;gap:12px}
.social-row a{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;border:1px solid var(--line);color:var(--text-3)}
.social-row a:hover{border-color:rgba(47,227,176,.45);color:var(--brand)}

/* 移动转化条 */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  align-items:center;justify-content:space-between;gap:14px;
  padding:10px 18px calc(10px + env(safe-area-inset-bottom));
  background:rgba(8,13,24,.86);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(110%);opacity:0;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.mobile-bar.show{transform:translateY(0);opacity:1}
.mobile-bar span{font-size:13.5px;color:var(--text-2)}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--text-1);cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto;transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--text-2);border-radius:2px;transition:background-color .22s var(--ease)}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(135deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--brand)}
.faq-answer{padding:0 0 22px 14px;border-left:3px solid var(--brand);font-size:15px;line-height:1.85;color:var(--text-2)}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 300px}
  .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:991px){
  .nav-links,.cmd-search{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:60px}
  .nav-right .btn-main{display:none}
  .mobile-bar{display:flex}
  .section{padding:56px 0}
  .article-hero{padding:40px 0 32px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-panel{padding:44px 24px}
}
@media (max-width:767px){
  .shell{padding:0 16px}
  body{font-size:15.2px}
  .article-title{max-width:none}
  .article-side{flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .article-body{font-size:15.6px;line-height:1.85}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:575px){
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%}
  .article-meta{gap:8px}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A13;
  --bg-1:#0B1220;
  --glass:rgba(18,28,48,.55);
  --line:rgba(140,180,255,.12);
  --brand:#2FE3B0;
  --brand-2:#4C8DFF;
  --accent:#FFB020;
  --text-1:#EAF1FF;
  --text-2:#A9B7CE;
  --text-3:#6E7D96;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#2FE3B0;
  --bs-body-bg:transparent;
  --bs-body-color:#EAF1FF;
  --bs-border-color:rgba(140,180,255,.12);
  --bs-border-radius:14px;
  --bs-link-color:#2FE3B0;
  --bs-link-hover-color:#5AF0C4;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.55;
  background-image:
    linear-gradient(rgba(140,180,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,180,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:#5AF0C4}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(47,227,176,.75);outline-offset:2px}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.site-nav,.site-main,.site-footer,.mobile-bar{position:relative;z-index:2}

/* ============ 导航 ============ */
.site-nav{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(8,13,24,.72);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:16px;height:68px}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
  font-size:17.5px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--text-1)}
.brand-mark{width:28px;height:28px;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-link{
  position:relative;
  padding:8px 12px 10px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;
  bottom:2px;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:238px;
  height:40px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:width .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.cmd-search:focus-within{
  width:318px;
  border-color:rgba(47,227,176,.55);
  box-shadow:0 0 0 3px rgba(47,227,176,.14);
}
.cmd-search input{
  flex:1;
  min-width:0;
  background:none;
  border:0;
  outline:none;
  color:var(--text-1);
  font-size:14px;
}
.cmd-search input::placeholder{color:var(--text-3)}
.cmd-search kbd{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:11px;
  color:var(--text-3);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  white-space:nowrap;
}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 22px;
  border:0;
  border-radius:999px;
  background:var(--brand);
  color:#04140F;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  cursor:pointer;
  box-shadow:0 0 0 1px rgba(47,227,176,.5),0 12px 34px -10px rgba(47,227,176,.45);
  transition:transform .18s var(--ease),filter .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-main:hover{
  color:#04140F;
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(47,227,176,.6),0 18px 42px -10px rgba(47,227,176,.62);
}
.btn-main:active{transform:none}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 22px;
  border-radius:999px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.12);
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-ghost:hover{
  color:var(--text-1);
  background:rgba(255,255,255,.06);
  border-color:rgba(47,227,176,.4);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;
  height:42px;
  padding:0 11px;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  cursor:pointer;
  flex:0 0 auto;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text-1);transition:transform .24s var(--ease),opacity .24s var(--ease)}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--brand);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--brand)}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-head h2{
  margin-top:14px;
  font-size:clamp(23px,2.6vw,34px);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  color:var(--brand);
  background:rgba(47,227,176,.08);
  border:1px solid rgba(47,227,176,.3);
}
.badge-pill.blue{color:var(--brand-2);background:rgba(76,141,255,.09);border-color:rgba(76,141,255,.3)}

/* ============ 分类页 Hero ============ */
.cat-hero{
  position:relative;
  padding:118px 0 106px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
  background-image:
    linear-gradient(90deg,rgba(6,10,19,.94) 0%,rgba(6,10,19,.78) 44%,rgba(6,10,19,.62) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center right;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:-20% -10% auto -20%;
  height:130%;
  pointer-events:none;
  background:radial-gradient(50% 55% at 18% 22%,rgba(47,227,176,.14),transparent 62%);
}
.cat-hero .shell{max-width:1200px}
.cat-hero h1{
  margin-top:20px;
  max-width:820px;
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
}
.hero-sub{
  max-width:660px;
  margin-top:18px;
  font-size:clamp(16px,1.5vw,18px);
  color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:30px;
  font-size:13px;
  color:var(--text-3);
}
.hero-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--text-3);display:inline-block}
.hero-meta .num{color:var(--brand);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:15px;font-weight:700}

/* 面包屑 */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{opacity:.6}
.crumb .current{color:var(--text-2)}

/* ============ 图文分栏 ============ */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:52px;
  align-items:center;
}
.split h2{
  margin-top:14px;
  font-size:clamp(23px,2.6vw,34px);
  font-weight:700;
  line-height:1.25;
}
.split p{margin-top:16px;color:var(--text-2)}
.point-list{margin-top:26px;display:grid;gap:14px}
.point-list li{
  display:flex;
  gap:12px;
  padding-left:2px;
  font-size:15.5px;
  color:var(--text-2);
}
.point-list li strong{color:var(--text-1);font-weight:600}
.tick{
  flex:0 0 auto;
  width:20px;
  height:20px;
  margin-top:5px;
}
.img-frame{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid rgba(47,227,176,.2);
  box-shadow:var(--shadow-card);
}
.img-frame img{width:100%;height:100%;object-fit:cover}
.float-tag{
  position:absolute;
  left:16px;
  bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--text-1);
  background:rgba(11,18,32,.72);
  border:1px solid rgba(255,255,255,.12);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(47,227,176,.18)}

/* ============ 勾选清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px}
.check-item{
  display:flex;
  gap:14px;
  padding:20px 22px;
  border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.check-item:hover{transform:translateY(-2px);border-color:rgba(47,227,176,.3)}
.check-item .tick{margin-top:4px}
.check-item h3{font-size:16.5px;font-weight:600;line-height:1.5}
.check-item p{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.75}
.check-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.08em;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-list .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.faq-list .accordion-item:first-of-type{border-top:1px solid var(--line)}
.faq-list .accordion-header{margin:0}
.faq-list .accordion-button{
  position:relative;
  display:block;
  width:100%;
  padding:24px 56px 24px 0;
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  text-align:left;
}
.faq-list .accordion-button:not(.collapsed){
  color:var(--brand);
  background:transparent;
  box-shadow:none;
}
.faq-list .accordion-button:focus{box-shadow:none;outline:none}
.faq-list .accordion-button::before{
  content:"";
  position:absolute;
  right:16px;
  top:50%;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--text-2);
  transform:translateY(-50%);
  transition:background .24s var(--ease);
}
.faq-list .accordion-button::after{
  content:"";
  position:absolute;
  right:23px;
  top:50%;
  width:2px;
  height:16px;
  border-radius:2px;
  background:var(--text-2);
  background-image:none;
  margin:0;
  transform:translateY(-50%);
  transition:transform .28s var(--ease),background .24s var(--ease);
}
.faq-list .accordion-button:not(.collapsed)::before{background:var(--brand)}
.faq-list .accordion-button:not(.collapsed)::after{background:var(--brand);transform:translateY(-50%) rotate(90deg)}
.faq-list .accordion-body{
  padding:0 56px 26px 18px;
  border-left:3px solid var(--brand);
  margin-left:0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;
  overflow:hidden;
  padding:56px 40px;
  border-radius:24px;
  text-align:center;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow-card);
}
.cta-panel::before{
  content:"";
  position:absolute;
  inset:-40% -10% auto -10%;
  height:160%;
  pointer-events:none;
  background:radial-gradient(45% 50% at 50% 20%,rgba(47,227,176,.16),transparent 65%);
}
.cta-panel > *{position:relative}
.cta-panel h2{
  font-size:clamp(23px,2.6vw,34px);
  font-weight:700;
  line-height:1.25;
}
.cta-panel p{max-width:620px;margin:16px auto 0;color:var(--text-2)}
.cta-panel .hero-actions{justify-content:center;margin-top:30px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.01em}
.footer-desc{margin-top:16px;max-width:340px;font-size:14px;color:var(--text-2);line-height:1.8}
.footer-title{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--text-3);
  margin-bottom:18px;
  text-transform:uppercase;
}
.footer-link{
  display:block;
  margin-bottom:12px;
  font-size:14px;
  color:var(--text-2);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-link:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact li{
  display:flex;
  gap:10px;
  margin-bottom:14px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.footer-contact svg{flex:0 0 auto;margin-top:4px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:52px;
  padding:22px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.social-row{display:flex;align-items:center;gap:14px}
.social-row a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.social-row a:hover{border-color:rgba(47,227,176,.45);background:rgba(47,227,176,.08)}

/* ============ 移动端固定转化条 ============ */
.mobile-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:130;
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  height:60px;
  padding:0 16px calc(0px + env(safe-area-inset-bottom));
  background:rgba(8,13,24,.86);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(16px);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mobile-bar.show{opacity:1;transform:none;visibility:visible}
.mobile-bar span{font-size:14px;color:var(--text-2)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .cmd-search:focus-within{width:260px}
  .split{gap:40px}
}
@media (max-width:991px){
  .nav-inner{height:60px}
  .nav-toggle{display:flex;margin-left:auto;order:3}
  .nav-right{order:2;margin-left:0}
  .nav-right .cmd-search{display:none}
  .nav-links{
    position:fixed;
    top:60px;
    left:0;
    right:0;
    bottom:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:12px 16px 40px;
    overflow-y:auto;
    background:rgba(8,13,24,.94);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
  }
  body.drawer-open .nav-links{opacity:1;visibility:visible;transform:none}
  .nav-link{
    display:flex;
    align-items:center;
    height:52px;
    padding:0 6px;
    font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{left:6px;bottom:10px}
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:32px}
  .cat-hero{padding:76px 0 68px}
  .cat-hero::after{inset:-30% -20% auto -20%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .mobile-bar{display:flex}
  .site-footer{padding-bottom:60px}
}
@media (max-width:767px){
  .shell{padding:0 16px}
  body{font-size:15.5px}
  .section{padding:56px 0}
  .cat-hero{padding:60px 0 56px;background-position:center}
  .cta-panel{padding:40px 22px;border-radius:20px}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .faq-list .accordion-button{padding:20px 48px 20px 0;font-size:16px}
  .faq-list .accordion-button::before{right:12px}
  .faq-list .accordion-button::after{right:19px}
  .faq-list .accordion-body{padding:0 24px 22px 14px}
  .hero-meta{gap:10px}
}
@media (max-width:575px){
  .brand span{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-main,
  .hero-actions .btn-ghost{width:100%}
  .cta-panel .hero-actions{flex-direction:column}
  .mobile-bar span{font-size:13px}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A13;
  --bg-1:#0B1220;
  --glass:rgba(18,28,48,.55);
  --line:rgba(140,180,255,.12);
  --brand:#2FE3B0;
  --brand-2:#4C8DFF;
  --accent:#FFB020;
  --text-1:#EAF1FF;
  --text-2:#A9B7CE;
  --text-3:#6E7D96;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --shadow-brand:0 12px 34px -10px rgba(47,227,176,.45);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --bs-primary:#2FE3B0;
  --bs-body-bg:#060A13;
  --bs-body-color:#EAF1FF;
  --bs-border-color:rgba(140,180,255,.12);
  --bs-border-radius:14px;
  --bs-link-color:#2FE3B0;
  --bs-link-hover-color:#5CF0C4;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text-1)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(47,227,176,.28)}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:Inter,ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(8,13,24,.72);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:17.5px;font-weight:700;letter-spacing:-.01em;color:var(--text-1);white-space:nowrap}
.brand-mark{width:28px;height:28px;flex:none}
.brand:hover{color:#fff}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;transition:color var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-1px;width:0;height:2px;border-radius:2px;
  background:var(--brand);transition:width var(--t);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{width:16px}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{width:16px}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:9px;height:40px;padding:0 12px;
  width:238px;border-radius:999px;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  border:1px solid rgba(255,255,255,.09);
  transition:width var(--t),border-color var(--t),box-shadow var(--t);
}
.cmd-search input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;
  color:var(--text-1);font-size:13.5px;
}
.cmd-search input::placeholder{color:var(--text-3)}
.cmd-search kbd{
  font-family:Inter,ui-monospace,monospace;font-size:10.5px;color:var(--text-3);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
  border-radius:6px;padding:2px 6px;white-space:nowrap;
}
.cmd-search:focus-within{width:320px;border-color:rgba(47,227,176,.5);box-shadow:0 0 0 3px rgba(47,227,176,.15)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:999px;
  background:var(--brand);color:#04140F;font-size:14.5px;font-weight:700;
  box-shadow:0 0 0 1px rgba(47,227,176,.5),var(--shadow-brand);
  transition:transform var(--t),filter var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-main:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,227,176,.6),0 16px 40px -10px rgba(47,227,176,.6);color:#04140F}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  border:1px solid rgba(255,255,255,.12);color:var(--text-1);
  font-size:15px;font-weight:600;transition:all var(--t);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(47,227,176,.4);color:#fff;transform:translateY(-1px)}
.nav-toggle{
  display:none;width:40px;height:36px;border-radius:10px;background:transparent;
  border:1px solid rgba(255,255,255,.12);padding:8px 9px;margin-left:6px;
}
.nav-toggle span{display:block;height:1.6px;background:var(--text-1);border-radius:2px;margin:4px 0;transition:all var(--t)}
:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(47,227,176,.75),0 0 0 6px rgba(47,227,176,.2);border-radius:8px}

/* ============ 移动抽屉 ============ */
.nav-drawer{
  position:fixed;inset:0;z-index:1040;display:none;
  background:rgba(6,10,19,.9);backdrop-filter:blur(18px);
  padding:96px 24px 24px;
}
.nav-drawer.open{display:flex;flex-direction:column}
.nav-drawer a{
  display:flex;align-items:center;height:52px;font-size:16.5px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.active{color:var(--brand)}
.nav-drawer .btn-main{margin-top:auto;height:48px;width:100%}

/* ============ Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:420px;display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(6,10,19,.94) 0%,rgba(6,10,19,.78) 55%,rgba(6,10,19,.6) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 12% 8%,rgba(47,227,176,.14),transparent 52%),
    linear-gradient(rgba(140,180,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,180,255,.045) 1px,transparent 1px);
  background-size:auto,44px 44px,44px 44px;
}
.cat-hero .shell{position:relative;z-index:2;padding-top:56px;padding-bottom:56px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumb a{color:var(--text-3);transition:color var(--t)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{opacity:.6}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.18em;
  color:var(--brand);text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:14px;height:1.5px;background:var(--brand);border-radius:2px}
.cat-hero h1{font-size:clamp(28px,4.2vw,46px);line-height:1.16;font-weight:800;letter-spacing:-.02em;max-width:14em}
.cat-hero .lead{margin-top:16px;max-width:640px;color:var(--text-2);font-size:16.5px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px}
.hero-meta div{font-size:13px;color:var(--text-3)}
.hero-meta b{display:block;font-family:Inter,ui-monospace,monospace;font-size:26px;color:var(--brand);font-weight:700;line-height:1.3}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--brand);border:1px solid rgba(47,227,176,.3);
  background:rgba(47,227,176,.07);
}
.tag.blue{color:var(--brand-2);border-color:rgba(76,141,255,.3);background:rgba(76,141,255,.08)}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(23px,2.6vw,34px);line-height:1.25}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:15.5px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ 步骤流 ============ */
.steps{position:relative;margin-top:8px}
.steps::before{
  content:"";position:absolute;left:23px;top:18px;bottom:26px;width:1px;
  background:linear-gradient(180deg,rgba(47,227,176,.6),rgba(76,141,255,.35),rgba(140,180,255,.08));
}
.step{position:relative;display:flex;gap:26px;padding-bottom:38px}
.step:last-child{padding-bottom:0}
.step-dot{
  position:relative;z-index:2;flex:none;width:47px;height:47px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,ui-monospace,monospace;font-size:14.5px;font-weight:700;color:var(--brand);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),rgba(11,18,32,.92);
  border:1px solid rgba(47,227,176,.35);box-shadow:0 0 0 5px rgba(6,10,19,.9);
}
.step-body{
  flex:1;padding:22px 26px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform var(--t),border-color var(--t);
}
.step-body:hover{transform:translateY(-2px);border-color:rgba(47,227,176,.3)}
.step-body h3{font-size:19px;font-weight:600;letter-spacing:-.01em}
.step-body p{margin-top:10px;color:var(--text-2);font-size:15px}
.step-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.step-points span{
  font-size:12.5px;color:var(--text-2);padding:4px 11px;border-radius:999px;
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);
}
.step-time{
  display:inline-flex;align-items:center;gap:7px;margin-top:14px;
  font-size:12.5px;color:var(--accent);
}
.step-time::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(255,176,32,.8)}

/* ============ 参数表 ============ */
.table-card{
  border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015)),var(--glass);
  border:1px solid rgba(255,255,255,.09);box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
}
.spec-row{
  display:grid;grid-template-columns:180px 1fr 160px;gap:20px;
  padding:20px 26px;border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.spec-row:last-child{border-bottom:0}
.spec-row:hover{background:rgba(47,227,176,.045)}
.spec-row.head{
  font-size:12px;letter-spacing:.16em;color:var(--text-3);
  background:rgba(255,255,255,.03);text-transform:uppercase;
}
.spec-key{font-size:15px;font-weight:600;color:var(--text-1)}
.spec-val{font-size:14.5px;color:var(--text-2)}
.spec-time{font-size:13.5px;color:var(--brand-2);font-family:Inter,ui-monospace,monospace}
.spec-row.head .spec-key,.spec-row.head .spec-val,.spec-row.head .spec-time{font-weight:500}

/* ============ 推荐卡 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform var(--t),border-color var(--t);
}
.rec-card:hover{transform:translateY(-3px);border-color:rgba(47,227,176,.3)}
.rec-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1220}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.rec-card:hover .rec-media img{transform:scale(1.04)}
.rec-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,19,.1),rgba(6,10,19,.72))}
.rec-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  font-size:12px;padding:5px 12px;border-radius:999px;color:var(--brand);
  background:rgba(11,18,32,.72);border:1px solid rgba(47,227,176,.32);backdrop-filter:blur(8px);
}
.rec-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.rec-body h3{font-size:18.5px;font-weight:600;line-height:1.45}
.rec-body p{margin-top:10px;font-size:14px;color:var(--text-2);flex:1}
.rec-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);font-family:Inter,ui-monospace,monospace;
}
.rec-foot .go{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-family:inherit;font-size:13px}

/* ============ 指标带 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.metric{background:var(--bg-1);padding:28px 24px;transition:background var(--t)}
.metric:hover{background:#101a2c}
.metric b{display:block;font-family:Inter,ui-monospace,monospace;font-size:30px;font-weight:700;color:var(--brand);line-height:1.2}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}

/* ============ 清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 30px}
.check-item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
.check-item svg{flex:none;margin-top:4px}
.check-item strong{display:block;font-size:15.5px;font-weight:600}
.check-item em{display:block;font-style:normal;margin-top:4px;font-size:14px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;color:var(--text-1);text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 22px 18px;font-size:17px;font-weight:600;
  border-left:3px solid transparent;transition:all var(--t);
}
.faq-q:hover{color:var(--brand)}
.faq-q .icon{
  flex:none;width:26px;height:26px;border-radius:50%;position:relative;
  border:1px solid rgba(255,255,255,.14);transition:all var(--t);
}
.faq-q .icon::before,.faq-q .icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-2);border-radius:2px;
  transform:translate(-50%,-50%);transition:all var(--t);
}
.faq-q .icon::before{width:11px;height:1.6px}
.faq-q .icon::after{width:1.6px;height:11px}
.faq-item.open .faq-q{color:var(--brand);border-left-color:var(--brand)}
.faq-item.open .faq-q .icon{border-color:rgba(47,227,176,.5);transform:rotate(135deg)}
.faq-item.open .faq-q .icon::before,.faq-item.open .faq-q .icon::after{background:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s cubic-bezier(.2,.7,.3,1)}
.faq-a-inner{
  padding:0 0 24px 21px;border-left:3px solid var(--brand);
  color:var(--text-2);font-size:15px;line-height:1.85;
}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:24px;
  padding:64px 40px;text-align:center;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02)),var(--glass);
  border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
}
.cta-panel::before{
  content:"";position:absolute;left:50%;top:-40%;width:520px;height:360px;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(47,227,176,.22),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{position:relative;font-size:clamp(23px,2.6vw,32px)}
.cta-panel p{position:relative;margin:14px auto 30px;max-width:600px;color:var(--text-2);font-size:15.5px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ============ 表单 ============ */
.form-panel{
  border-radius:var(--r-lg);padding:28px;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018)),var(--glass);
  border:1px solid rgba(255,255,255,.09);box-shadow:var(--shadow-card);
}
.form-panel label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.form-control-glass{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  color:var(--text-1);font-size:15px;outline:none;transition:all var(--t);
}
.form-control-glass::placeholder{color:var(--text-3)}
.form-control-glass:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,227,176,.18)}
.form-field{margin-bottom:18px}
.form-hint{margin-top:12px;font-size:13px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text-1)}
.footer-desc{margin-top:14px;color:var(--text-2);font-size:14px;max-width:330px}
.footer-title{font-size:12px;letter-spacing:.18em;color:var(--text-3);margin-bottom:16px}
.footer-link{display:block;font-size:14px;color:var(--text-2);padding:6px 0;transition:all var(--t)}
.footer-link:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);padding:6px 0}
.footer-contact svg{flex:none;margin-top:4px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.social-row{display:flex;gap:12px}
.social-row a{
  width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.1);transition:all var(--t);
}
.social-row a:hover{border-color:rgba(47,227,176,.5);background:rgba(47,227,176,.08);transform:translateY(-2px)}

/* ============ 移动固定条 ============ */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1035;display:none;
  align-items:center;justify-content:space-between;gap:14px;
  height:60px;padding:0 16px calc(0px + env(safe-area-inset-bottom,0px));
  background:rgba(8,13,24,.82);backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(110%);opacity:0;transition:all .28s cubic-bezier(.2,.7,.3,1);
}
.mobile-bar.show{transform:translateY(0);opacity:1}
.mobile-bar span{font-size:13.5px;color:var(--text-2)}
.mobile-bar a{
  height:38px;padding:0 18px;border-radius:999px;display:inline-flex;align-items:center;
  background:var(--brand);color:#04140F;font-size:14px;font-weight:700;white-space:nowrap;
  box-shadow:0 0 0 1px rgba(47,227,176,.5),var(--shadow-brand);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .metrics{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:991px){
  .nav-links,.cmd-search{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .nav-right{margin-left:0}
  .nav-right .btn-main{display:none}
  .section{padding:72px 0}
  .cat-hero{min-height:auto}
  .cat-hero .shell{padding-top:44px;padding-bottom:48px}
  .rec-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:18px 20px}
  .spec-row.head{display:none}
  .cta-panel{padding:48px 24px}
  .mobile-bar{display:flex}
  .site-footer{padding-bottom:88px}
}
@media (max-width:767px){
  .shell{padding:0 16px}
  body{font-size:15.4px}
  .section{padding:56px 0}
  .metrics{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .steps::before{left:19px}
  .step{gap:16px}
  .step-dot{width:39px;height:39px;font-size:13px}
  .step-body{padding:18px 18px}
  .hero-meta{gap:18px}
  .cat-hero h1{font-size:26px}
}
@media (max-width:575px){
  .cta-actions{flex-direction:column}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%}
  .nav-right .btn-ghost{display:none}
}