/* roulang page: index */
:root{
  --bg:#0B0718;
  --bg-deep:#0A0616;
  --panel:#140E2A;
  --panel-2:#1A1235;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(123,63,228,.55);
  --text:#E8E6F5;
  --muted:#A79FC7;
  --purple:#7B3FE4;
  --cyan:#00E5C0;
  --magenta:#FF3D7F;
  --lemon:#F5D547;
  --success:#35D07F;
  --warn:#FFB020;
  --error:#FF5C5C;
  --grad-brand:linear-gradient(135deg,#7B3FE4 0%,#FF3D7F 52%,#00E5C0 100%);
  --grad-btn:linear-gradient(120deg,#7B3FE4 0%,#C13BDC 48%,#FF3D7F 100%);
  --radius-lg:28px;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 18px 40px rgba(12,6,32,.55);
  --shadow-hover:0 24px 60px rgba(123,63,228,.35);
  --inner:inset 0 1px 0 rgba(255,255,255,.06);
  --container:1280px;
  --ease:180ms ease-out;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"SFMono-Regular",ui-monospace,Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;box-shadow:0 0 0 4px rgba(0,229,192,.18);border-radius:8px}
::selection{background:rgba(123,63,228,.5);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(11,7,24,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background-color var(--ease),box-shadow var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(123,63,228,.85),rgba(0,229,192,.85),transparent);
}
.site-header.is-scrolled{background:rgba(10,6,22,.94);box-shadow:0 14px 30px rgba(5,2,16,.6)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:700}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:grid;place-items:center;flex:none;
  box-shadow:0 10px 24px rgba(123,63,228,.45),var(--inner);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:6px 2px;
  transition:color var(--ease),text-shadow var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:var(--grad-brand);opacity:0;transform:scaleX(.35);
  transition:opacity var(--ease),transform var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link.is-active{color:#fff;text-shadow:0 0 18px rgba(0,229,192,.45)}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color var(--ease),background-color var(--ease);
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(123,63,228,.12)}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:linear-gradient(90deg,#7B3FE4,#00E5C0);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-cta{display:none}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),filter var(--ease);
}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 14px 32px rgba(255,61,127,.28),var(--inner)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 20px 46px rgba(123,63,228,.45)}
.btn-ghost{background:rgba(255,255,255,.02);border-color:rgba(0,229,192,.5);color:var(--cyan)}
.btn-ghost:hover{background:rgba(0,229,192,.08);transform:translateY(-2px);box-shadow:0 14px 34px rgba(0,229,192,.18)}
.btn:active{transform:scale(.98)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- Section base ---------- */
.section{padding:96px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(26,18,53,.55),rgba(11,7,24,0))}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--cyan);margin-bottom:12px}
.section-head h2{font-size:clamp(24px,2.6vw,36px);font-weight:700;letter-spacing:-.01em;line-height:1.35}
.section-head p{color:var(--muted);margin-top:14px;font-size:16px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 80px;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,7,24,.76),rgba(11,7,24,.95)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 340px at 10% 16%,rgba(123,63,228,.42),transparent 70%),
    radial-gradient(520px 320px at 90% 26%,rgba(0,229,192,.22),transparent 72%),
    radial-gradient(460px 320px at 66% 94%,rgba(255,61,127,.22),transparent 75%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cyan);
  border:1px solid rgba(0,229,192,.4);border-radius:999px;padding:6px 14px;background:rgba(0,229,192,.06);
}
.hero h1{font-size:clamp(32px,4.6vw,56px);font-weight:800;letter-spacing:-.02em;line-height:1.22;margin:22px 0 18px}
.hero-sub{color:var(--muted);font-size:17px;max-width:44em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:14px;color:var(--muted)}
.hero-points li{position:relative;padding-left:18px}
.hero-points li::before{
  content:"";position:absolute;left:0;top:.75em;width:6px;height:6px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px var(--cyan);
}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;border-radius:24px;border:1px solid var(--line);
  box-shadow:var(--shadow);object-fit:cover;aspect-ratio:4/3;
}
.hero-float{
  position:absolute;left:-16px;bottom:22px;display:flex;align-items:center;gap:12px;
  background:rgba(20,14,42,.94);border:1px solid var(--line-strong);border-radius:16px;
  padding:14px 18px;box-shadow:var(--shadow);backdrop-filter:blur(8px);max-width:260px;
}
.hero-float strong{display:block;font-size:14px}
.hero-float span{display:block;font-size:12px;color:var(--muted);line-height:1.5}
.pulse-dot{
  flex:none;width:10px;height:10px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 4px rgba(0,229,192,.16),0 0 14px var(--cyan);
}

/* ---------- Stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{
  position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 24px;overflow:hidden;
  box-shadow:var(--shadow),var(--inner);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-brand)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.stat-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:clamp(34px,3.6vw,46px);font-weight:700;letter-spacing:-.02em;line-height:1.1;
}
.stat-num small{font-size:14px;font-weight:500;color:var(--muted);margin-left:4px}
.stat-label{font-size:13px;color:var(--muted);margin-top:8px}
.stat-tag{
  position:absolute;top:18px;right:18px;font-size:12px;padding:3px 10px;border-radius:999px;
  background:rgba(53,208,127,.12);color:var(--success);border:1px solid rgba(53,208,127,.3);
}
.stat-tag.warn{background:rgba(255,176,32,.12);color:var(--warn);border-color:rgba(255,176,32,.3)}
.stat-tag.info{background:rgba(0,229,192,.1);color:var(--cyan);border-color:rgba(0,229,192,.32)}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:1.12fr 1fr;gap:22px}
.bento-main{
  grid-row:span 2;display:flex;flex-direction:column;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow),var(--inner);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.bento-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.bento-main img{width:100%;height:236px;object-fit:cover}
.bento-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.bento-body h3{font-size:20px;font-weight:600}
.bento-body p{font-size:15px;color:var(--muted)}
.bento-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:14px;font-weight:600;transition:gap var(--ease)}
.bento-main:hover .bento-link{color:#fff}
.bento-item{
  display:flex;gap:16px;align-items:flex-start;background:var(--panel-2);
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow),var(--inner);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.bento-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.bento-icon{
  flex:none;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(123,63,228,.16);border:1px solid rgba(123,63,228,.4);color:var(--cyan);
}
.bento-icon svg{width:20px;height:20px}
.bento-item h3{font-size:18px;font-weight:600;margin-bottom:6px}
.bento-item p{font-size:14px;color:var(--muted)}
.quick-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px}
.quick-pill{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:18px 24px;border-radius:999px;background:rgba(123,63,228,.1);
  border:1px solid rgba(123,63,228,.35);font-size:15px;font-weight:600;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.quick-pill span{color:var(--cyan);transition:transform var(--ease)}
.quick-pill:hover{transform:translateY(-3px);background:rgba(123,63,228,.2);border-color:var(--line-strong);box-shadow:0 16px 36px rgba(123,63,228,.28)}
.quick-pill:hover span{transform:translateX(4px)}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:44px;display:grid;gap:22px}
.timeline::before{
  content:"";position:absolute;left:13px;top:10px;bottom:10px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(123,63,228,.9),rgba(0,229,192,.55),rgba(255,61,127,.3));
}
.tl-item{
  position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow),var(--inner);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.tl-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.tl-num{
  position:absolute;left:-44px;top:22px;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;background:var(--panel-2);border:1px solid var(--line-strong);
  font-family:var(--mono);font-size:13px;color:var(--cyan);
}
.tl-item h3{font-size:18px;font-weight:600;margin-bottom:6px}
.tl-item p{font-size:14px;color:var(--muted)}

/* ---------- Posts (CMS) ---------- */
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.post-card{
  display:grid;grid-template-columns:184px 1fr;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow),var(--inner);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.post-thumb{overflow:hidden;background:var(--panel-2)}
.post-thumb img{width:100%;height:100%;min-height:158px;object-fit:cover;transition:transform .4s ease-out}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge-neon{
  font-size:12px;padding:3px 10px;border-radius:999px;
  border:1px solid rgba(0,229,192,.45);color:var(--cyan);background:rgba(0,229,192,.06);
}
.post-time{font-family:var(--mono);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.post-body h3{
  font-size:18px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-more{margin-top:auto;font-size:14px;color:var(--cyan);transition:transform var(--ease)}
.post-card:hover .post-more{transform:translateX(4px)}
.empty-state{
  display:grid;justify-items:center;gap:16px;text-align:center;
  padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-lg);
  background:rgba(20,14,42,.6);color:var(--muted);font-size:15px;
}
.empty-icon{
  width:46px;height:46px;border-radius:50%;
  border:2px solid rgba(0,229,192,.5);border-top-color:transparent;
}
.skeleton{
  border-radius:var(--radius);height:158px;
  background:linear-gradient(90deg,rgba(255,255,255,.04),rgba(255,255,255,.09),rgba(255,255,255,.04));
  background-size:200% 100%;animation:skeletonMove 1.4s linear infinite;
}
@keyframes skeletonMove{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- Compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow),var(--inner);
}
.compare-col.is-cyan{border-color:rgba(0,229,192,.35)}
.compare-col.is-magenta{border-color:rgba(255,61,127,.32)}
.compare-col h3{font-size:18px;font-weight:600;margin-bottom:6px}
.compare-col .compare-sub{font-size:13px;color:var(--muted);margin-bottom:22px}
.bar-row{margin-bottom:18px}
.bar-head{display:flex;justify-content:space-between;gap:12px;font-size:14px;margin-bottom:8px}
.bar-head b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:600}
.bar-track{height:10px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden;box-shadow:inset 0 1px 3px rgba(0,0,0,.55)}
.bar-fill{height:100%;border-radius:999px;box-shadow:inset 0 1px 0 rgba(255,255,255,.35)}
.bar-fill.is-cyan{background:linear-gradient(90deg,#0E7F6F,#00E5C0)}
.bar-fill.is-magenta{background:linear-gradient(90deg,#7B3FE4,#FF3D7F)}
.compare-note{
  margin-top:24px;padding:18px 22px;border-radius:var(--radius);
  border-left:3px solid var(--lemon);background:rgba(245,213,71,.07);
  font-size:14px;color:var(--text);
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:18px;background:none;border:0;padding:20px 26px;font-size:17px;font-weight:600;
  text-align:left;cursor:pointer;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:15px;bottom:15px;width:3px;border-radius:3px;
  background:var(--grad-brand);opacity:0;transition:opacity var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;color:var(--cyan);font-size:16px;line-height:1;
  transition:transform var(--ease),background-color var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(0,229,192,.1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 26px 22px;font-size:15px;line-height:1.9;color:var(--muted)}

/* ---------- Contact ---------- */
.contact-card{
  display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;
  background:linear-gradient(180deg,rgba(26,18,53,.92),rgba(20,14,42,.96));
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px;
  box-shadow:var(--shadow),var(--inner);
}
.contact-intro h2{font-size:clamp(24px,2.4vw,32px);font-weight:700;line-height:1.35;margin-bottom:14px}
.contact-intro p{color:var(--muted);font-size:15px}
.contact-points{margin-top:24px;display:grid;gap:12px}
.contact-points li{position:relative;padding-left:20px;font-size:14px;color:var(--muted)}
.contact-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;
  background:linear-gradient(135deg,#7B3FE4,#00E5C0);box-shadow:0 0 10px rgba(0,229,192,.6);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;color:var(--muted)}
.field input,.field select,.field textarea{
  background:#140E2A;border:1px solid var(--line);border-radius:14px;
  padding:13px 16px;font-size:15px;color:var(--text);width:100%;
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.field textarea{resize:vertical;min-height:110px;line-height:1.7}
.field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(255,255,255,.16)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,229,192,.18);background:#151030;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--error)}
.field .field-error{display:none;font-size:12px;color:var(--error)}
.field.has-error .field-error{display:block}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.7}
.form-note.is-success{color:var(--success)}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-deep);padding-top:64px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:32em}
.footer-title{font-size:14px;font-weight:600;margin-bottom:16px;color:#fff}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14px;color:var(--muted);transition:color var(--ease),transform var(--ease)}
.footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-links li span{font-size:14px;color:var(--muted)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px}
  .post-card{grid-template-columns:158px 1fr}
  .contact-card{gap:34px;padding:34px}
}
@media (max-width:1024px){
  .section{padding:76px 0}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{order:-1;max-width:620px}
  .hero-float{left:14px;bottom:14px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:1fr}
  .bento-main{grid-row:auto}
  .post-grid{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .contact-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav-links{
    position:fixed;left:0;right:0;top:72px;bottom:0;z-index:88;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(11,7,24,.98);backdrop-filter:blur(18px);
    padding:24px;overflow-y:auto;
    transform:translateY(-14px);opacity:0;visibility:hidden;
    transition:transform var(--ease),opacity var(--ease),visibility var(--ease);
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-link{font-size:17px;width:100%;padding:16px 0;border-bottom:1px solid var(--line);color:var(--text)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--cyan)}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn{display:none}
  .drawer-cta{display:inline-flex;margin-top:24px}
  .timeline{padding-left:36px}
  .tl-num{left:-36px}
  .quick-row{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:64px 0}
  .hero{padding:64px 0 56px}
  .hero-visual img{aspect-ratio:16/11}
  .hero-float{position:static;margin-top:16px;max-width:none}
  .stats-grid{gap:16px}
  .stat-card{padding:20px 18px;border-radius:var(--radius-sm)}
  .post-card{grid-template-columns:1fr}
  .post-thumb img{min-height:172px;height:172px}
  .contact-card{padding:24px 20px;border-radius:var(--radius)}
  .form-grid{grid-template-columns:1fr}
  .faq-q{padding:18px 18px;font-size:16px}
  .faq-a p{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .brand-text{font-size:15px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:30px}
  .hero-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg:#0B0718;
  --panel:#140E2A;
  --panel-2:#1A1235;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(123,63,228,.55);
  --text:#E8E6F5;
  --muted:#A79FC7;
  --purple:#7B3FE4;
  --cyan:#00E5C0;
  --magenta:#FF3D7F;
  --lemon:#F5D547;
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF5C5C;
  --grad:linear-gradient(135deg,#7B3FE4 0%,#FF3D7F 50%,#00E5C0 100%);
  --grad-btn:linear-gradient(120deg,#FF3D7F 0%,#7B3FE4 60%,#00E5C0 130%);
  --r-card:24px;
  --r-img:18px;
  --r-pill:999px;
  --shadow:0 18px 40px rgba(12,6,32,.55), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-hover:0 24px 60px rgba(123,63,228,.35), inset 0 1px 0 rgba(255,255,255,.08);
  --t:180ms ease-out;
  --container:1280px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(123,63,228,.5);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-pill);
  border:1px solid transparent;cursor:pointer;font-size:15px;font-weight:600;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),border-color var(--t),color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 12px 30px rgba(255,61,127,.28);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 18px 40px rgba(255,61,127,.38);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;color:var(--text);border-color:rgba(0,229,192,.45);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,229,192,.18);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:14px;font-weight:600;}
.link-arrow svg{transition:transform var(--t);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,7,24,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background-color var(--t),box-shadow var(--t);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(123,63,228,0),#7B3FE4 30%,#00E5C0 70%,rgba(0,229,192,0));
  opacity:.85;
}
.site-header.is-stuck{background:rgba(11,7,24,.94);box-shadow:0 10px 30px rgba(6,3,16,.6);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.01em;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad);box-shadow:0 8px 20px rgba(123,63,228,.4);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;stroke:#0B0718;}
.brand-text{font-size:17px;color:#fff;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:12px;font-size:15px;color:var(--muted);
  transition:color var(--t),background-color var(--t);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:#fff;text-shadow:0 0 14px rgba(0,229,192,.55);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#7B3FE4,#00E5C0);box-shadow:0 0 10px rgba(0,229,192,.7);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.drawer-cta{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:transparent;
  border:1px solid var(--line);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:linear-gradient(90deg,#7B3FE4,#00E5C0);transition:transform var(--t),opacity var(--t);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);padding:28px 0 0;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--cyan);}
.crumb .sep{opacity:.45;}
.crumb-current{color:var(--text);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article head ---------- */
.article-head{padding:20px 0 36px;position:relative;}
.article-head::before{
  content:"";position:absolute;top:-60px;left:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,63,228,.28),transparent 68%);pointer-events:none;
}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cyan);
  border:1px solid rgba(0,229,192,.32);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:18px;
}
.article-title{
  font-size:clamp(28px,3.6vw,46px);font-weight:800;line-height:1.28;letter-spacing:-.02em;
  max-width:26ch;position:relative;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13px;color:var(--muted);}
.meta-item{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;}
.meta-divider{width:1px;height:14px;background:var(--line);}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;color:#fff;border:1px solid rgba(123,63,228,.6);background:rgba(123,63,228,.14);
}

/* ---------- cover ---------- */
.cover-figure{margin:0 0 52px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative;}
.cover-figure img{width:100%;height:clamp(220px,38vw,420px);object-fit:cover;}
.cover-figure::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,7,24,.1),rgba(11,7,24,.62));pointer-events:none;}
.cover-caption{position:absolute;left:24px;bottom:20px;font-size:13px;color:var(--text);background:rgba(11,7,24,.6);padding:6px 14px;border-radius:var(--r-pill);border:1px solid var(--line);}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px);gap:48px;justify-content:center;
  padding-bottom:64px;
}
.prose{min-width:0;font-size:17px;line-height:1.9;color:var(--text);}
.prose p{margin:0 0 1.4em;max-width:42em;}
.prose h2{
  position:relative;font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.4;
  margin:2.2em 0 .9em;padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,#7B3FE4,#00E5C0);box-shadow:0 0 14px rgba(0,229,192,.5);
}
.prose h3{font-size:20px;font-weight:600;margin:1.8em 0 .7em;}
.prose h4{font-size:17px;font-weight:600;margin:1.5em 0 .6em;color:var(--muted);}
.prose ul,.prose ol{margin:0 0 1.4em;padding-left:2px;}
.prose li{position:relative;padding-left:22px;margin-bottom:.6em;}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:50%;
  background:linear-gradient(135deg,#00E5C0,#7B3FE4);box-shadow:0 0 10px rgba(0,229,192,.6);
}
.prose ol{counter-reset:li;}
.prose ol li{counter-increment:li;}
.prose ol li::before{
  content:counter(li);position:absolute;left:0;top:.34em;width:20px;height:20px;border-radius:6px;
  font-size:12px;line-height:20px;text-align:center;color:#0B0718;font-weight:700;
  background:linear-gradient(135deg,#F5D547,#00E5C0);
}
.prose blockquote{
  margin:0 0 1.6em;padding:16px 22px;border-left:3px solid var(--cyan);
  background:rgba(0,229,192,.06);border-radius:0 16px 16px 0;color:var(--text);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:16px;margin:1.6em auto;box-shadow:var(--shadow);}
.prose figure{margin:0 0 1.8em;}
.prose figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px;}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(0,229,192,.4);}
.prose a:hover{color:#fff;border-bottom-color:#fff;}
.prose code{background:rgba(123,63,228,.18);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:.92em;}
.prose pre{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px;overflow-x:auto;margin:0 0 1.6em;}
.prose pre code{background:none;border:0;padding:0;}
.prose .table-wrap{overflow-x:auto;margin:0 0 1.8em;border:1px solid var(--line);border-radius:16px;}
.prose table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px;}
.prose th,.prose td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);}
.prose thead th{background:var(--panel-2);font-weight:600;color:#fff;}
.prose tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.prose hr{border:0;height:1px;background:var(--line);margin:2.4em 0;}

/* ---------- aside ---------- */
.article-aside{display:none;}
.aside-inner{position:sticky;top:96px;display:grid;gap:20px;}
.aside-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.aside-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);
}
.aside-title{font-size:15px;font-weight:700;margin-bottom:14px;}
.aside-list li{margin-bottom:10px;font-size:14px;color:var(--muted);}
.aside-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:12px;transition:background-color var(--t),color var(--t);}
.aside-list a:hover{background:rgba(255,255,255,.05);color:#fff;}
.aside-list span.dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px rgba(0,229,192,.7);flex:0 0 auto;}
.aside-note{font-size:13px;color:var(--muted);margin-bottom:16px;}

/* ---------- FAQ ---------- */
.section{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.35;}
.section-head p{color:var(--muted);font-size:15px;margin-top:12px;}
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--cyan);}
.faq-icon{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(0,229,192,.45);color:var(--cyan);font-size:16px;line-height:1;
  transition:transform var(--t),background-color var(--t);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(0,229,192,.12);}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--muted);}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.related-card{
  display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:16px;
  box-shadow:var(--shadow);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.related-card .thumb{border-radius:16px;overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line);}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;}
.related-card h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card p{font-size:14px;color:var(--muted);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card .link-arrow{margin-top:12px;}

/* ---------- back bar ---------- */
.back-bar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0;}

/* ---------- CTA / form ---------- */
.cta-card{
  position:relative;overflow:hidden;background:var(--panel-2);border:1px solid var(--line);
  border-radius:28px;padding:clamp(24px,4vw,48px);box-shadow:var(--shadow);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:44px;
}
.cta-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);}
.cta-card::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,229,192,.22),transparent 70%);pointer-events:none;
}
.cta-copy h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.35;}
.cta-copy p{color:var(--muted);margin-top:16px;font-size:15px;max-width:42ch;}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);}
.cta-points i{width:18px;height:18px;border-radius:50%;background:rgba(0,229,192,.14);border:1px solid rgba(0,229,192,.5);flex:0 0 auto;margin-top:4px;position:relative;}
.cta-points i::after{content:"";position:absolute;left:5px;top:5px;width:6px;height:6px;border-radius:50%;background:var(--cyan);}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;position:relative;z-index:1;}
.field{display:grid;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--muted);}
.field input,.field select,.field textarea{
  width:100%;background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:12px 14px;font-size:15px;color:var(--text);transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(167,159,199,.7);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,229,192,.16);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err);box-shadow:0 0 0 3px rgba(255,92,92,.14);}
.field-error{font-size:13px;color:var(--err);display:none;}
.field.has-error .field-error{display:block;}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;grid-column:1 / -1;}
.form-success{
  grid-column:1 / -1;display:none;align-items:center;gap:10px;font-size:14px;color:var(--ok);
  background:rgba(53,208,127,.1);border:1px solid rgba(53,208,127,.4);border-radius:14px;padding:12px 16px;
}
.form-success.is-visible{display:flex;}

/* ---------- empty state ---------- */
.state-empty{
  text-align:center;padding:64px 24px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--panel);max-width:640px;margin:0 auto;
}
.state-empty .ico{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;display:flex;align-items:center;justify-content:center;
  background:rgba(123,63,228,.16);border:1px solid rgba(123,63,228,.5);color:var(--cyan);font-size:24px;
}
.state-empty h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.state-empty p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- skeleton ---------- */
.skeleton{background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(255,255,255,.12),rgba(255,255,255,.05));background-size:200% 100%;animation:sk 1.4s linear infinite;border-radius:12px;}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--panel);margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:60px 0 40px;}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:36ch;}
.footer-title{font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;font-size:14px;color:var(--muted);}
.footer-links a{color:var(--muted);transition:color var(--t);}
.footer-links a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);padding:20px 0 32px;font-size:13px;color:var(--muted);
}

/* ---------- responsive ---------- */
@media (min-width:1200px){
  .article-layout{grid-template-columns:760px 300px;gap:56px;}
  .article-aside{display:block;}
  .related-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (min-width:1440px){
  .container{padding:0 32px;}
  .section{padding:80px 0;}
}
@media (max-width:1199px){
  .cta-card{grid-template-columns:minmax(0,1fr);gap:32px;}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;inset:72px 0 0 0;background:rgba(11,7,24,.98);backdrop-filter:blur(16px);
    flex-direction:column;align-items:stretch;gap:6px;padding:24px 24px 40px;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity var(--t),transform var(--t);
    overflow-y:auto;z-index:55;
  }
  .nav-links.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-link{padding:14px 16px;font-size:16px;border:1px solid var(--line);border-radius:14px;}
  .nav-link.is-active::after{display:none;}
  .drawer-cta{display:inline-flex;margin-top:16px;width:100%;}
  .nav-actions .btn-primary.btn-sm:not(.drawer-cta){display:none;}
  .nav-toggle{display:flex;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding:48px 0 32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .article-title{max-width:none;}
  .cover-figure{margin-bottom:36px;}
  .article-layout{gap:36px;padding-bottom:48px;}
  .prose{font-size:16px;}
  .form-grid{grid-template-columns:minmax(0,1fr);}
  .related-card{grid-template-columns:96px minmax(0,1fr);}
  .btn-block-sm{width:100%;}
}
@media (max-width:480px){
  .brand-text{font-size:15px;}
  .meta-divider{display:none;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .crumb-current{max-width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg:#0B0718;
  --panel:#140E2A;
  --panel-2:#1A1235;
  --panel-3:#201740;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(123,63,228,.55);
  --text:#E8E6F5;
  --muted:#A79FC7;
  --purple:#7B3FE4;
  --cyan:#00E5C0;
  --magenta:#FF3D7F;
  --lemon:#F5D547;
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF5C5C;
  --grad:linear-gradient(135deg,#7B3FE4 0%,#FF3D7F 52%,#00E5C0 100%);
  --grad-soft:linear-gradient(135deg,rgba(123,63,228,.9),rgba(255,61,127,.85));
  --radius-card:24px;
  --radius-lg:28px;
  --radius-img:18px;
  --shadow:0 18px 40px rgba(12,6,32,.55), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-hover:0 24px 60px rgba(123,63,228,.35), inset 0 1px 0 rgba(255,255,255,.08);
  --shadow-btn:0 12px 30px rgba(255,61,127,.28);
  --ease:180ms ease-out;
  --gap:24px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(720px 520px at 88% -6%, rgba(123,63,228,.20), transparent 62%),
    radial-gradient(560px 460px at 4% 20%, rgba(0,229,192,.10), transparent 60%);
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(123,63,228,.55);color:#fff}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-head{margin-bottom:38px;max-width:820px}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--cyan);
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(0,229,192,.35);
  background:rgba(0,229,192,.07);
  margin-bottom:16px;
}
.section-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
h2.section-title{font-size:clamp(24px,2.6vw,36px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.section-desc{color:var(--muted);font-size:16px;margin-top:14px;max-width:660px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,7,24,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:var(--grad);opacity:.75;
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:0 8px 22px rgba(123,63,228,.45);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-weight:800;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  padding:10px 14px;border-radius:999px;
  font-size:15px;color:var(--muted);
  transition:color var(--ease),background var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad);
  box-shadow:0 0 12px rgba(0,229,192,.7);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  cursor:pointer;
  transition:border-color var(--ease),background var(--ease);
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(123,63,228,.14)}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:linear-gradient(90deg,#7B3FE4,#00E5C0)}
.nav-toggle span:nth-child(2){width:70%}
.drawer-cta{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;
  border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#7B3FE4,#FF3D7F);
  color:#fff;box-shadow:var(--shadow-btn);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(255,61,127,.42);filter:brightness(1.08)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:transparent;border-color:rgba(0,229,192,.55);color:#7CF3DE;
}
.btn-ghost:hover{
  background:rgba(0,229,192,.1);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(0,229,192,.35),0 14px 30px rgba(0,229,192,.18);
}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{min-height:38px;padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{transition:color var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:var(--text)}

/* ============ 内页首屏 ============ */
.page-hero{position:relative;overflow:hidden;padding:64px 0 84px;border-bottom:1px solid var(--line)}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.24;
}
.page-hero .hero-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(620px 460px at 78% 12%, rgba(255,61,127,.24), transparent 62%),
    radial-gradient(560px 420px at 10% 86%, rgba(0,229,192,.16), transparent 58%),
    linear-gradient(180deg,rgba(11,7,24,.62),rgba(11,7,24,.94));
}
.page-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
h1.hero-title{
  font-size:clamp(32px,4.6vw,56px);
  line-height:1.16;font-weight:800;letter-spacing:-.02em;
  margin-bottom:20px;
}
h1.hero-title em{
  font-style:normal;
  background:linear-gradient(135deg,#B58BFF,#FF3D7F 55%,#00E5C0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;color:var(--muted);max-width:620px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:13px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.meta-pill i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);display:inline-block}

.hero-visual{position:relative}
.hero-card{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.hero-card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.hero-card-media img{width:100%;height:100%;object-fit:cover}
.hero-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,7,24,.05),rgba(20,14,42,.85))}
.hero-card-body{padding:20px 24px 24px;display:grid;gap:12px}
.status-line{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:11px 14px;border-radius:14px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  font-size:13.5px;
}
.status-line strong{font-weight:600;color:var(--text)}
.status-tag{
  font-size:12px;padding:3px 10px;border-radius:999px;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.status-tag.ok{background:rgba(53,208,127,.14);color:#7DEBB1;border:1px solid rgba(53,208,127,.35)}
.status-tag.warn{background:rgba(255,176,32,.14);color:#FFD180;border:1px solid rgba(255,176,32,.35)}
.status-tag.info{background:rgba(0,229,192,.12);color:#7CF3DE;border:1px solid rgba(0,229,192,.32)}

/* ============ 标签筛选 ============ */
.chip-bar{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(26,18,53,.9),rgba(20,14,42,.9));
  padding:22px 24px;
  box-shadow:var(--shadow);
  display:grid;gap:16px;
}
.chip-bar-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px}
.chip-bar-head h2{font-size:18px;font-weight:700}
.chip-bar-head p{font-size:13.5px;color:var(--muted)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:14px;color:var(--muted);
  transition:transform var(--ease),border-color var(--ease),color var(--ease),background var(--ease);
}
.chip:hover{transform:translateY(-2px);border-color:var(--line-strong);color:var(--text)}
.chip.is-on{
  background:var(--grad-soft);color:#fff;border-color:transparent;
  box-shadow:0 10px 26px rgba(255,61,127,.3);
}

/* ============ 卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}

.card{
  position:relative;
  display:flex;flex-direction:column;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad);opacity:.9;z-index:2;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease-out}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-tag{
  align-self:flex-start;
  font-size:12px;padding:4px 12px;border-radius:999px;
  border:1px solid rgba(0,229,192,.35);color:#7CF3DE;
  background:rgba(0,229,192,.08);
  font-variant-numeric:tabular-nums;
}
.card-title{font-size:19px;font-weight:600;line-height:1.5}
.card-text{font-size:14.5px;color:var(--muted);line-height:1.8}
.card-link{
  margin-top:auto;padding-top:6px;
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:#7CF3DE;
  transition:color var(--ease);
}
.card-link svg{width:16px;height:16px;transition:transform var(--ease)}
.card:hover .card-link svg{transform:translateX(5px)}
.card-link:hover{color:#fff}

/* ============ 指标条 ============ */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.stat{
  position:relative;overflow:hidden;
  border-radius:22px;border:1px solid var(--line);
  background:var(--panel);
  padding:24px 24px 22px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.stat::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);opacity:.85}
.stat:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.stat-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.stat-num{
  font-size:clamp(30px,3.2vw,44px);font-weight:800;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;line-height:1.1;
  background:linear-gradient(135deg,#B58BFF,#00E5C0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-unit{font-size:14px;font-weight:600;color:var(--muted);margin-left:4px;-webkit-text-fill-color:var(--muted)}
.stat-label{font-size:13px;color:var(--muted);margin-top:10px}

/* ============ 双栏说明 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel-card{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--panel-2);
  padding:30px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.panel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.panel-card.tone-cyan{background:linear-gradient(170deg,rgba(0,229,192,.09),rgba(20,14,42,.92) 62%)}
.panel-card.tone-magenta{background:linear-gradient(170deg,rgba(255,61,127,.1),rgba(20,14,42,.92) 62%)}
.panel-card h3{font-size:20px;font-weight:600;margin-bottom:8px}
.panel-card .panel-sub{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.check-list{list-style:none;display:grid;gap:14px}
.check-list li{
  position:relative;padding-left:24px;
  font-size:15px;color:var(--muted);line-height:1.8;
}
.check-list li strong{color:var(--text);font-weight:600}
.check-list li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(0,229,192,.8);
}
.panel-card.tone-magenta .check-list li::before{background:var(--magenta);box-shadow:0 0 10px rgba(255,61,127,.8)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px}
.faq-item{
  position:relative;
  border-radius:20px;border:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);opacity:0;transition:opacity var(--ease);
}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);cursor:pointer;
  transition:color var(--ease);
}
.faq-q:hover{color:#fff}
.faq-icon{
  flex-shrink:0;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  transition:transform var(--ease),border-color var(--ease),color var(--ease);
  color:var(--cyan);font-size:18px;line-height:1;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:rgba(0,229,192,.5);background:rgba(0,229,192,.1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease-out}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--muted)}
.faq-a-inner p+p{margin-top:10px}

/* ============ CTA 表单 ============ */
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(123,63,228,.35);
  background:
    radial-gradient(560px 320px at 88% 0%, rgba(255,61,127,.2), transparent 62%),
    radial-gradient(460px 320px at 4% 100%, rgba(0,229,192,.14), transparent 60%),
    linear-gradient(160deg,rgba(123,63,228,.16),rgba(20,14,42,.95));
  padding:38px;
  box-shadow:var(--shadow);
}
.cta-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.cta-head{max-width:640px;margin-bottom:30px}
.cta-head h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.35}
.cta-head p{color:var(--muted);font-size:15.5px;margin-top:12px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--muted)}
.field input,.field select,.field textarea{
  width:100%;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  padding:13px 16px;
  font-size:15px;
  color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{min-height:118px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:rgba(167,159,199,.62)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(0,229,192,.7);
  box-shadow:0 0 0 3px rgba(0,229,192,.16);
  background:#160F2E;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--err);
  box-shadow:0 0 0 3px rgba(255,92,92,.14);
}
.field .err-text{font-size:12.5px;color:var(--err);display:none}
.field.has-error .err-text{display:block}
.form-actions{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.form-note{font-size:13px;color:var(--muted);line-height:1.7}
.form-success{
  display:none;margin-top:18px;padding:12px 16px;border-radius:14px;
  font-size:14px;
  background:rgba(53,208,127,.12);
  border:1px solid rgba(53,208,127,.38);
  color:#7DEBB1;
}
.form-success.is-show{display:block}

/* ============ 骨架 / 空态（状态样式） ============ */
.skeleton{
  border-radius:16px;
  background:linear-gradient(90deg,#1A1235 25%,#261B4D 37%,#1A1235 63%);
  background-size:400% 100%;
  animation:shimmer 1.5s infinite linear;
}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
.skeleton-card{height:280px;border-radius:var(--radius-card)}
.empty-state{
  display:grid;place-items:center;gap:12px;
  padding:56px 24px;text-align:center;
  border-radius:var(--radius-card);
  border:1px dashed rgba(255,255,255,.14);
  background:rgba(255,255,255,.02);
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  border:1px solid rgba(0,229,192,.35);background:rgba(0,229,192,.08);
  color:var(--cyan);font-size:22px;
}
.empty-state p{color:var(--muted);font-size:14.5px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(20,14,42,.6),rgba(11,7,24,.98));
  padding:64px 0 28px;
}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:var(--grad);opacity:.7}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{font-size:14px;color:var(--muted);margin-top:16px;max-width:340px;line-height:1.8}
.footer-title{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-links{list-style:none;display:grid;gap:11px;font-size:14px;color:var(--muted)}
.footer-links a{transition:color var(--ease)}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);
  margin-top:48px;padding-top:22px;
  font-size:13px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{max-width:1200px}
}
@media (max-width:1199px){
  .section{padding:80px 0}
  h1.hero-title{font-size:clamp(30px,4.2vw,46px)}
  .hero-grid{gap:36px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:991px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-sm{padding:52px 0}

  .nav-links{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    flex-direction:column;align-items:stretch;gap:8px;
    margin-left:0;
    padding:26px 20px 32px;
    background:rgba(11,7,24,.98);
    backdrop-filter:blur(20px);
    border-top:1px solid var(--line);
    transform:translateY(-10px);
    opacity:0;pointer-events:none;
    transition:opacity .22s ease-out,transform .22s ease-out;
    overflow-y:auto;
  }
  .nav-links.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav-link{
    padding:16px 18px;font-size:17px;border-radius:16px;
    border:1px solid transparent;
  }
  .nav-link.is-active{
    background:rgba(123,63,228,.16);
    border-color:rgba(123,63,228,.42);
  }
  .nav-link.is-active::after{display:none}
  .drawer-cta{display:inline-flex;margin-top:20px;width:100%}
  .nav-actions .btn-primary{display:none}
  .nav-toggle{display:flex}

  .page-hero{padding:44px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .split{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .cta-card{padding:30px 24px}
  .panel-card{padding:26px 24px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .grid-3{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .card-body{padding:20px 20px 22px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .stat{padding:18px 18px 16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .chip-bar{padding:20px 18px}
  .faq-q{padding:18px 18px;font-size:16px}
  .faq-a-inner{padding:0 18px 18px}
  .cta-card{padding:26px 18px}
  .cta-head{margin-bottom:24px}
}
@media (max-width:480px){
  .brand-text{font-size:15.5px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-num{font-size:28px}
  .hero-meta{gap:8px}
  .meta-pill{font-size:12.5px;padding:6px 11px}
  .footer-grid{grid-template-columns:1fr}
  .btn{min-height:46px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg:#0B0718;
  --panel:#140E2A;
  --panel-2:#1A1235;
  --line:rgba(255,255,255,.08);
  --text:#E8E6F5;
  --muted:#A79FC7;
  --purple:#7B3FE4;
  --cyan:#00E5C0;
  --magenta:#FF3D7F;
  --lemon:#F5D547;
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF5C5C;
  --grad:linear-gradient(135deg,#7B3FE4 0%,#FF3D7F 52%,#00E5C0 100%);
  --grad-soft:linear-gradient(135deg,rgba(123,63,228,.55),rgba(255,61,127,.45),rgba(0,229,192,.4));
  --radius-lg:28px;
  --radius-md:22px;
  --radius-sm:16px;
  --shadow:0 18px 40px rgba(12,6,32,.55), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-hover:0 24px 60px rgba(123,63,228,.35), inset 0 1px 0 rgba(255,255,255,.08);
  --ease:180ms ease-out;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(560px 360px at 12% -6%, rgba(123,63,228,.22), transparent 70%),
    radial-gradient(520px 340px at 92% 4%, rgba(0,229,192,.14), transparent 72%),
    radial-gradient(680px 420px at 50% 108%, rgba(255,61,127,.12), transparent 70%);
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(123,63,228,.5);color:#fff}

.container{
  width:100%;
  max-width:1280px;
  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;
  min-height:44px;
  padding:12px 24px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  cursor:pointer;
  transition:transform var(--ease), box-shadow var(--ease), background-color var(--ease), color var(--ease), border-color var(--ease), filter var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#7B3FE4,#FF3D7F);
  color:#fff;
  box-shadow:0 12px 28px rgba(123,63,228,.34), inset 0 1px 0 rgba(255,255,255,.18);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 18px 38px rgba(255,61,127,.34), inset 0 1px 0 rgba(255,255,255,.22)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:transparent;
  border-color:rgba(0,229,192,.55);
  color:#9CF4E5;
  box-shadow:inset 0 0 0 rgba(0,229,192,0);
}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(0,229,192,.09);box-shadow:0 12px 30px rgba(0,229,192,.18)}
.btn-ghost:active{transform:scale(.98)}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--cyan);
  font-weight:600;
  font-size:15px;
  padding:4px 0;
  transition:gap var(--ease), color var(--ease);
}
.btn-link span{transition:transform var(--ease)}
.btn-link:hover{gap:12px;color:#fff}
.btn-link:hover span{transform:translateX(3px)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:13px;
  line-height:1.5;
  border:1px solid rgba(123,63,228,.55);
  color:#CDBBFF;
  background:rgba(123,63,228,.12);
  white-space:nowrap;
}
.badge-cyan{border-color:rgba(0,229,192,.5);color:#8DF2E1;background:rgba(0,229,192,.1)}
.badge-magenta{border-color:rgba(255,61,127,.5);color:#FFAECB;background:rgba(255,61,127,.1)}
.badge-ok{border-color:rgba(53,208,127,.45);color:#8BE8B7;background:rgba(53,208,127,.12)}
.badge-warn{border-color:rgba(255,176,32,.45);color:#FFD489;background:rgba(255,176,32,.12)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,7,24,.76);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background-color var(--ease), box-shadow var(--ease);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--grad);
  opacity:.65;
}
.site-header.is-scrolled{background:rgba(9,5,20,.94);box-shadow:0 14px 34px rgba(6,3,16,.6)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:0 10px 24px rgba(123,63,228,.4);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.02em;color:#fff}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;
  padding:10px 15px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  transition:color var(--ease), background-color var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.is-active{
  color:#fff;
  background:rgba(123,63,228,.18);
  box-shadow:inset 0 0 0 1px rgba(123,63,228,.5);
  text-shadow:0 0 14px rgba(123,63,228,.7);
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,#7B3FE4,#00E5C0);
  box-shadow:0 0 12px rgba(0,229,192,.85);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.drawer-cta{display:none}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  padding:0 11px;
  cursor:pointer;
  flex-direction:column;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:linear-gradient(90deg,#7B3FE4,#00E5C0);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.crumb a{color:var(--muted);transition:color var(--ease)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{opacity:.45}
.crumb .now{color:#DCD7F5}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 88px;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.26;
  filter:saturate(1.1);
}
.hero-veil{
  position:absolute;
  inset:0;
  background:
    radial-gradient(720px 420px at 18% 20%, rgba(123,63,228,.4), transparent 68%),
    radial-gradient(560px 380px at 88% 62%, rgba(0,229,192,.2), transparent 70%),
    linear-gradient(180deg, rgba(11,7,24,.72) 0%, rgba(11,7,24,.92) 62%, var(--bg) 100%);
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:56px;
  align-items:center;
  margin-top:28px;
}
.hero h1{
  font-size:clamp(32px,4.6vw,56px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.02em;
  margin:20px 0 0;
  color:#fff;
}
.hero h1 .hl{
  background:linear-gradient(120deg,#00E5C0,#7B3FE4 55%,#FF3D7F);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:22px;
  font-size:17px;
  line-height:1.9;
  color:var(--muted);
  max-width:42ch;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-visual .frame::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:3px;
  background:var(--grad);
  z-index:2;
}
.hero-visual img{width:100%;height:390px;object-fit:cover}
.hero-visual .float-card{
  position:absolute;
  left:-24px;
  bottom:-26px;
  background:rgba(20,14,42,.94);
  border:1px solid rgba(0,229,192,.35);
  border-radius:20px;
  padding:16px 20px;
  box-shadow:0 20px 44px rgba(8,4,22,.7);
  backdrop-filter:blur(10px);
  max-width:250px;
}
.hero-visual .float-card .num{
  font-size:30px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--cyan);
  line-height:1.2;
}
.hero-visual .float-card .txt{font-size:13px;color:var(--muted);line-height:1.6;margin-top:4px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative}
.section + .section{padding-top:0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--cyan);
  margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#7B3FE4,#00E5C0);
}
.section-head h2{
  font-size:clamp(24px,2.6vw,36px);
  font-weight:700;
  line-height:1.32;
  letter-spacing:-.01em;
  color:#fff;
}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;max-width:60ch}

/* ---------- 指标徽章条 ---------- */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.metric-card{
  position:relative;
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:24px 22px 22px;
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.metric-card::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--grad);
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(123,63,228,.55)}
.metric-card .top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.metric-card .num{
  font-size:clamp(32px,3.4vw,46px);
  font-weight:800;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:#fff;
  letter-spacing:-.02em;
}
.metric-card .num small{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px}
.metric-card .label{margin-top:10px;font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:24px;
  padding-bottom:24px;
}
.tl-item::before{
  content:"";
  position:absolute;
  left:31px;
  top:60px;
  bottom:-4px;
  width:2px;
  background:linear-gradient(180deg,rgba(123,63,228,.7),rgba(0,229,192,.35));
}
.tl-item:last-child::before{display:none}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  width:62px;height:62px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:18px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:#fff;
  background:linear-gradient(160deg,#241a4d,#140E2A);
  border:1px solid rgba(123,63,228,.6);
  box-shadow:0 12px 28px rgba(10,5,26,.7);
  z-index:1;
}
.tl-item.is-key .tl-dot{
  background:var(--grad);
  border-color:transparent;
  color:#0B0718;
  box-shadow:0 14px 32px rgba(255,61,127,.32);
}
.tl-body{
  background:linear-gradient(180deg,rgba(26,18,53,.9),rgba(20,14,42,.92));
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px 26px;
  box-shadow:var(--shadow);
  transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(0,229,192,.4)}
.tl-body h3{font-size:20px;font-weight:600;color:#fff}
.tl-body p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.85}
.tl-body .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ---------- 双栏对照卡 ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.compare-card{
  position:relative;
  border-radius:var(--radius-lg);
  padding:28px;
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.compare-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px}
.compare-card.cyan::before{background:linear-gradient(90deg,#00E5C0,#7B3FE4)}
.compare-card.magenta::before{background:linear-gradient(90deg,#FF3D7F,#7B3FE4)}
.compare-card.cyan:hover{border-color:rgba(0,229,192,.5);box-shadow:0 24px 60px rgba(0,229,192,.2), inset 0 1px 0 rgba(255,255,255,.08);transform:translateY(-4px)}
.compare-card.magenta:hover{border-color:rgba(255,61,127,.5);box-shadow:0 24px 60px rgba(255,61,127,.22), inset 0 1px 0 rgba(255,255,255,.08);transform:translateY(-4px)}
.compare-card h3{font-size:20px;font-weight:600;color:#fff;margin-top:10px}
.compare-card .lead{margin-top:10px;font-size:14px;color:var(--muted)}
.compare-list{margin-top:20px;display:grid;gap:12px}
.compare-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:14px 16px;
  font-size:14px;
  line-height:1.75;
  color:var(--text);
  transition:background-color var(--ease), border-color var(--ease);
}
.compare-list li:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16)}
.compare-list .dot{
  flex:0 0 auto;
  width:8px;height:8px;border-radius:50%;
  margin-top:9px;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(0,229,192,.9);
}
.compare-card.magenta .compare-list .dot{background:var(--magenta);box-shadow:0 0 10px rgba(255,61,127,.9)}
.compare-list strong{display:block;color:#fff;font-weight:600;font-size:15px;margin-bottom:2px}

/* ---------- 能力卡片 ---------- */
.cards-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(123,63,228,.55)}
.card::after{
  content:"";
  position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--grad);
  opacity:0;
  transition:opacity var(--ease);
}
.card:hover::after{opacity:1}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.card:hover .card-media img{transform:scale(1.05)}
.card-media::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,7,24,0) 30%,rgba(11,7,24,.82) 100%);
  z-index:1;
}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:19px;font-weight:600;color:#fff}
.card-body p{margin-top:10px;color:var(--muted);font-size:14px;line-height:1.85}
.card-body .card-foot{margin-top:auto;padding-top:18px}
.card:hover .btn-link span{transform:translateX(3px)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:linear-gradient(180deg,rgba(26,18,53,.86),rgba(20,14,42,.9));
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:border-color var(--ease), box-shadow var(--ease);
}
.faq-item.is-open{border-color:rgba(0,229,192,.5);box-shadow:0 18px 44px rgba(0,229,192,.14)}
.faq-q{
  width:100%;
  background:none;
  border:0;
  text-align:left;
  padding:20px 22px 20px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  font-size:17px;
  font-weight:600;
  color:#fff;
  cursor:pointer;
  position:relative;
  transition:background-color var(--ease);
}
.faq-q:hover{background:rgba(255,255,255,.03)}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--grad);
  opacity:0;
  transition:opacity var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-icon{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:9px;
  border:1px solid rgba(0,229,192,.5);
  display:grid;place-items:center;
  color:var(--cyan);
  font-size:17px;
  line-height:1;
  transition:transform var(--ease), color var(--ease), border-color var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:#fff;border-color:rgba(255,61,127,.7)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms ease-out;
}
.faq-a-inner{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
  border-top:1px solid var(--line);
  padding-top:18px;
  margin:0 22px 0 24px;
  padding-left:0;
  padding-right:0;
}

/* ---------- CTA 表单 ---------- */
.cta-wrap{
  position:relative;
  border-radius:var(--radius-lg);
  border:1px solid rgba(123,63,228,.4);
  background:
    radial-gradient(520px 300px at 8% 0%, rgba(123,63,228,.32), transparent 68%),
    radial-gradient(480px 280px at 96% 100%, rgba(0,229,192,.18), transparent 70%),
    linear-gradient(180deg,#1A1235,#120C26);
  padding:44px;
  box-shadow:0 26px 60px rgba(9,5,22,.65), inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.cta-wrap::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--grad);
}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.cta-copy h2{font-size:clamp(24px,2.4vw,32px);font-weight:700;color:#fff;line-height:1.34}
.cta-copy p{margin-top:16px;color:var(--muted);font-size:15px;line-height:1.9}
.cta-points{margin-top:24px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
.cta-points li i{
  flex:0 0 auto;
  width:20px;height:20px;border-radius:50%;
  margin-top:5px;
  background:rgba(0,229,192,.14);
  border:1px solid rgba(0,229,192,.5);
  display:grid;place-items:center;
  font-style:normal;font-size:11px;color:var(--cyan);
}
.form-card{
  background:rgba(11,7,24,.6);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:26px;
  backdrop-filter:blur(6px);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--muted)}
.field input,.field select,.field textarea{
  width:100%;
  background:#140E2A;
  border:1px solid var(--line);
  border-radius:14px;
  padding:12px 14px;
  font-size:15px;
  color:var(--text);
  transition:border-color var(--ease), box-shadow var(--ease), background-color var(--ease);
  -webkit-appearance:none;
  appearance:none;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.75}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,#A79FC7 50%),linear-gradient(135deg,#A79FC7 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
  padding-right:44px;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(167,159,199,.6)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(255,255,255,.18)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(0,229,192,.75);
  box-shadow:0 0 0 4px rgba(0,229,192,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err);box-shadow:0 0 0 4px rgba(255,92,92,.12)}
.field .err-msg{font-size:12.5px;color:var(--err);display:none}
.field.has-error .err-msg{display:block}
.form-actions{margin-top:20px}
.form-note{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.7}
.form-feedback{margin-top:14px;font-size:14px;display:none;align-items:center;gap:8px}
.form-feedback.is-ok{display:flex;color:var(--ok)}
.form-feedback.is-err{display:flex;color:var(--err)}
.form-feedback i{font-style:normal}

/* ---------- 结论条 ---------- */
.note-bar{
  margin-top:24px;
  display:flex;
  gap:14px;
  align-items:flex-start;
  border:1px solid rgba(245,213,71,.35);
  background:rgba(245,213,71,.08);
  border-radius:var(--radius-sm);
  padding:16px 20px;
  font-size:14.5px;
  color:#F2E6B8;
  line-height:1.8;
}
.note-bar i{
  flex:0 0 auto;
  font-style:normal;
  color:var(--lemon);
  font-weight:700;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  padding:64px 0 28px;
  background:linear-gradient(180deg,rgba(11,7,24,0),rgba(20,14,42,.75));
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:var(--grad);
  opacity:.5;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:16px;color:var(--muted);font-size:14px;line-height:1.85;max-width:34ch}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:grid;gap:11px}
.footer-links a,.footer-links span{font-size:14px;color:var(--muted);transition:color var(--ease)}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}

/* ---------- 滚动显现 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity 520ms ease-out, transform 520ms ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px}
  .hero-visual img{height:340px}
  .section{padding:80px 0}
  .cta-wrap{padding:36px}
  .cta-grid{gap:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;
    left:0;right:0;
    top:72px;
    bottom:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:24px;
    background:rgba(9,5,20,.98);
    backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity 220ms ease-out, transform 220ms ease-out, visibility 220ms;
    overflow-y:auto;
    z-index:55;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:none;pointer-events:auto}
  .nav-link{padding:15px 16px;font-size:16px;border-radius:14px}
  .nav-link.is-active::after{left:16px;right:16px;bottom:6px}
  .drawer-cta{display:inline-flex;margin-top:14px;width:100%}
  .nav-actions .btn-primary{display:none}
  .nav-toggle{display:flex}
  .hero{padding:36px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual img{height:300px}
  .hero-visual .float-card{left:12px;bottom:-20px}
  .hero-sub{max-width:none}
  .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cards-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:64px 0}
  .hero{padding:28px 0 60px}
  .hero h1{font-size:clamp(28px,7vw,40px)}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .cards-3{grid-template-columns:1fr}
  .tl-item{grid-template-columns:48px minmax(0,1fr);gap:16px}
  .tl-dot{width:48px;height:48px;font-size:16px}
  .tl-item::before{left:23px;top:48px}
  .tl-body{padding:18px 18px}
  .compare-card{padding:22px}
  .cta-wrap{padding:26px 20px}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .brand-text{font-size:16px}
}
@media (max-width:480px){
  .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .metric-card{padding:18px 16px}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a-inner{margin:0 18px;padding-top:16px}
  .hero-visual img{height:230px}
  .hero-visual .float-card{padding:13px 16px;max-width:210px}
  .cta-points li{font-size:13.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}