:root {
  --cg-base: #f3f4f6;
  --cg-surf: #ffffff;
  --cg-surf-gls: rgba(255, 255, 255, 0.85);
  --cg-text: #1e293b;
  --cg-sub: #475569;
  --cg-muted: #94a3b8;
  --cg-pri: #4f46e5;
  --cg-pri-hv: #4338ca;
  --cg-sec: #ec4899;
  --cg-ter: #14b8a6;
  --cg-bdr: #e2e8f0;
  --cg-rad-sm: 8px;
  --cg-rad: 16px;
  --cg-rad-lg: 24px;
  --cg-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
  --cg-shadow-hv: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--cg-base);
  color: var(--cg-text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; outline: none; }
img { max-width: 100%; display: block; }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes cgFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-15px); } }
@keyframes cgGlow { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }

.cg-wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.cg-sec { padding: 90px 0; }
.cg-sec-lt { background-color: var(--cg-surf); }

/* Buttons */
.cg-btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 28px; border-radius: 999px; font-weight: 600; font-size: 16px; transition: all 0.3s; }
.cg-btn-pri { background-color: var(--cg-pri); color: #fff; box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3); }
.cg-btn-pri:hover { background-color: var(--cg-pri-hv); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4); }
.cg-btn-sec { background-color: var(--cg-sec); color: #fff; box-shadow: 0 4px 14px rgba(236, 72, 153, 0.3); }
.cg-btn-sec:hover { background-color: #db2777; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(236, 72, 153, 0.4); }
.cg-btn-out { background-color: transparent; border: 2px solid var(--cg-bdr); color: var(--cg-text); }
.cg-btn-out:hover { border-color: var(--cg-pri); color: var(--cg-pri); background-color: rgba(79,70,229,0.05); }
.cg-btn-lg { padding: 16px 36px; font-size: 18px; }
.cg-btn svg { width: 20px; height: 20px; margin-right: 8px; fill: currentColor; }

/* Nav */
.cg-nav { position: fixed; top: 0; left: 0; right: 0; background: var(--cg-surf-gls); backdrop-filter: blur(12px); z-index: 1000; border-bottom: 1px solid rgba(0,0,0,0.05); }
.cg-nav-inner { display: flex; justify-content: space-between; align-items: center; height: 72px; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.cg-brand { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 700; letter-spacing: -0.5px; }
.cg-brand svg { width: 36px; height: 36px; }
.cg-menu { display: flex; gap: 8px; }
.cg-menu a { padding: 8px 16px; border-radius: 999px; font-weight: 500; color: var(--cg-sub); transition: all 0.2s; }
.cg-menu a:hover { color: var(--cg-pri); background: rgba(79,70,229,0.05); }
.cg-menu a.cg-act { color: #fff; background: var(--cg-pri); }
.cg-nav-end { display: flex; align-items: center; gap: 16px; }
.cg-menu-btn { display: none; background: none; border: none; color: var(--cg-text); cursor: pointer; }
.cg-menu-btn svg { width: 28px; height: 28px; stroke: currentColor; stroke-width: 2; fill: none; }

/* Hero */
.cg-hero { padding: 160px 0 80px; text-align: center; position: relative; overflow: hidden; background: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 50%, #fae8ff 100%); }
.cg-hero::before { content: ""; position: absolute; top: -20%; left: -10%; width: 50%; height: 50%; background: radial-gradient(circle, rgba(79,70,229,0.15) 0%, transparent 70%); border-radius: 50%; z-index: 0; }
.cg-hero::after { content: ""; position: absolute; bottom: -20%; right: -10%; width: 50%; height: 50%; background: radial-gradient(circle, rgba(236,72,153,0.15) 0%, transparent 70%); border-radius: 50%; z-index: 0; }
.cg-hero-box { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.cg-badge { display: inline-flex; align-items: center; padding: 6px 16px; background: rgba(255,255,255,0.8); border: 1px solid rgba(255,255,255,0.5); border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--cg-pri); margin-bottom: 24px; box-shadow: 0 4px 10px rgba(0,0,0,0.03); }
.cg-badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cg-pri); margin-right: 8px; animation: cgGlow 2s infinite alternate; }
.cg-h1 { font-size: 56px; font-weight: 800; letter-spacing: -1.5px; line-height: 1.1; margin-bottom: 24px; color: #0f172a; }
.cg-h1 span { background: linear-gradient(90deg, var(--cg-pri), var(--cg-sec)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.cg-hero-p { font-size: 20px; color: var(--cg-sub); margin-bottom: 40px; }
.cg-hero-acts { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cg-hero-meta { margin-top: 24px; font-size: 14px; color: var(--cg-muted); }
.cg-hero-vis { margin-top: 60px; position: relative; z-index: 1; animation: cgFloat 6s ease-in-out infinite; }
.cg-mock { background: rgba(255,255,255,0.9); border-radius: var(--cg-rad-lg); box-shadow: var(--cg-shadow-hv); border: 1px solid rgba(255,255,255,0.6); backdrop-filter: blur(10px); padding: 12px; overflow: hidden; }
.cg-mock-bar { display: flex; gap: 8px; padding: 8px 12px 16px; border-bottom: 1px solid var(--cg-bdr); }
.cg-mock-dot { width: 12px; height: 12px; border-radius: 50%; }
.cg-mock-dot.r { background: #ef4444; } .cg-mock-dot.y { background: #f59e0b; } .cg-mock-dot.g { background: #10b981; }
.cg-mock-body { height: 300px; background: #f8fafc; border-radius: var(--cg-rad); margin-top: 12px; position: relative; }

/* Section Headings */
.cg-shead { text-align: center; max-width: 600px; margin: 0 auto 50px; }
.cg-stag { display: inline-block; padding: 4px 12px; background: rgba(20,184,166,0.1); color: var(--cg-ter); font-weight: 600; font-size: 13px; border-radius: 999px; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px; }
.cg-h2 { font-size: 36px; font-weight: 700; margin-bottom: 16px; letter-spacing: -0.5px; }
.cg-sp { font-size: 18px; color: var(--cg-sub); }

/* Stats Strip */
.cg-dash { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; background: var(--cg-surf); border-radius: var(--cg-rad-lg); padding: 40px; box-shadow: var(--cg-shadow); margin-top: -40px; position: relative; z-index: 10; border: 1px solid var(--cg-bdr); }
.cg-dash-item { text-align: center; padding: 0 16px; border-right: 1px solid var(--cg-bdr); }
.cg-dash-item:last-child { border-right: none; }
.cg-dash-num { font-size: 36px; font-weight: 800; color: var(--cg-pri); margin-bottom: 8px; }
.cg-dash-num.pink { color: var(--cg-sec); } .cg-dash-num.teal { color: var(--cg-ter); }
.cg-dash-lbl { font-size: 15px; color: var(--cg-sub); font-weight: 500; }

/* Features Grid */
.cg-fgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.cg-fcard { background: var(--cg-surf); border-radius: var(--cg-rad); padding: 32px; box-shadow: var(--cg-shadow); transition: all 0.3s; border: 1px solid transparent; position: relative; overflow: hidden; }
.cg-fcard::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--cg-pri), var(--cg-sec)); opacity: 0; transition: opacity 0.3s; }
.cg-fcard:hover { transform: translateY(-5px); box-shadow: var(--cg-shadow-hv); border-color: rgba(79,70,229,0.1); }
.cg-fcard:hover::before { opacity: 1; }
.cg-fico { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.cg-fico svg { width: 28px; height: 28px; }
.cg-fico-i { background: rgba(79,70,229,0.1); color: var(--cg-pri); }
.cg-fico-p { background: rgba(236,72,153,0.1); color: var(--cg-sec); }
.cg-fico-t { background: rgba(20,184,166,0.1); color: var(--cg-ter); }
.cg-fico-y { background: rgba(245,158,11,0.1); color: #f59e0b; }
.cg-fico-r { background: rgba(239,68,68,0.1); color: #ef4444; }
.cg-fico-s { background: rgba(14,165,233,0.1); color: #0ea5e9; }
.cg-ftitle { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.cg-fdesc { font-size: 15px; color: var(--cg-sub); }

/* Platform Cards */
.cg-pgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cg-pcard { background: var(--cg-surf); border-radius: var(--cg-rad); padding: 24px; text-align: center; border: 1px solid var(--cg-bdr); transition: all 0.3s; }
.cg-pcard:hover { border-color: var(--cg-pri); box-shadow: 0 10px 25px rgba(79,70,229,0.1); }
.cg-pico { margin: 0 auto 16px; width: 48px; height: 48px; color: var(--cg-text); }
.cg-ptitle { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.cg-pdesc { font-size: 14px; color: var(--cg-sub); margin-bottom: 20px; min-height: 44px; }

/* Deep Dive */
.cg-dive { display: flex; align-items: center; gap: 60px; margin-bottom: 80px; }
.cg-dive.rev { flex-direction: row-reverse; }
.cg-dive-box { flex: 1; }
.cg-dtit { font-size: 32px; font-weight: 700; margin-bottom: 20px; line-height: 1.2; }
.cg-ddesc { font-size: 17px; color: var(--cg-sub); margin-bottom: 24px; }
.cg-dlist li { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; font-size: 16px; color: var(--cg-text); }
.cg-dlist li svg { width: 24px; height: 24px; color: var(--cg-ter); flex-shrink: 0; }
.cg-dive-img { flex: 1; position: relative; }
.cg-panel { background: var(--cg-surf); border-radius: var(--cg-rad-lg); padding: 32px; box-shadow: var(--cg-shadow-hv); border: 1px solid rgba(255,255,255,0.5); }
.cg-pv-row { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.cg-pv-lbl { width: 60px; font-size: 14px; font-weight: 600; color: var(--cg-sub); }
.cg-pv-trk { flex: 1; height: 12px; background: var(--cg-bdr); border-radius: 6px; overflow: hidden; }
.cg-pv-fil { height: 100%; border-radius: 6px; }
.cg-pv-fil.i { background: var(--cg-pri); width: 85%; }
.cg-pv-fil.p { background: var(--cg-sec); width: 65%; }
.cg-pv-fil.t { background: var(--cg-ter); width: 95%; }

/* Reviews */
.cg-rgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cg-rcard { background: var(--cg-surf); border-radius: var(--cg-rad); padding: 28px; box-shadow: var(--cg-shadow); border: 1px solid var(--cg-bdr); }
.cg-rstars { color: #f59e0b; margin-bottom: 16px; display: flex; gap: 4px; }
.cg-rstars svg { width: 18px; height: 18px; fill: currentColor; }
.cg-rtext { font-size: 15px; color: var(--cg-text); margin-bottom: 24px; font-style: italic; }
.cg-ruser { display: flex; align-items: center; gap: 12px; }
.cg-rav { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 18px; }
.cg-rname { font-weight: 600; font-size: 15px; }
.cg-rrole { font-size: 13px; color: var(--cg-muted); }

/* Compare */
.cg-cmp { background: var(--cg-surf); border-radius: var(--cg-rad-lg); overflow: hidden; box-shadow: var(--cg-shadow); border: 1px solid var(--cg-bdr); }
.cg-table { width: 100%; border-collapse: collapse; text-align: center; }
.cg-table th, .cg-table td { padding: 16px; border-bottom: 1px solid var(--cg-bdr); }
.cg-table th { background: #f8fafc; font-weight: 700; font-size: 16px; }
.cg-table th:first-child, .cg-table td:first-child { text-align: left; padding-left: 32px; font-weight: 600; }
.cg-table tr:last-child td { border-bottom: none; }
.cg-thl { background: rgba(79,70,229,0.05); }
.cg-cy svg { width: 24px; height: 24px; color: var(--cg-ter); margin: 0 auto; }
.cg-cn svg { width: 24px; height: 24px; color: var(--cg-muted); margin: 0 auto; }

/* FAQ */
.cg-faq { max-width: 800px; margin: 0 auto; }
.cg-faq-item { background: var(--cg-surf); border: 1px solid var(--cg-bdr); border-radius: var(--cg-rad); margin-bottom: 16px; overflow: hidden; transition: all 0.3s; }
.cg-faq-head { padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; font-size: 17px; }
.cg-faq-head svg { width: 20px; height: 20px; color: var(--cg-sub); transition: transform 0.3s; }
.cg-faq-body { max-height: 0; padding: 0 24px; color: var(--cg-sub); font-size: 15px; transition: all 0.3s ease-in-out; opacity: 0; }
.cg-faq-item.cg-open { border-color: var(--cg-pri); box-shadow: 0 4px 15px rgba(79,70,229,0.05); }
.cg-faq-item.cg-open .cg-faq-head { color: var(--cg-pri); }
.cg-faq-item.cg-open .cg-faq-head svg { transform: rotate(180deg); color: var(--cg-pri); }
.cg-faq-item.cg-open .cg-faq-body { max-height: 500px; padding-bottom: 20px; opacity: 1; }

/* DL Specific */
.cg-dl-hero { padding: 140px 0 60px; background: linear-gradient(to bottom, #1e293b, #0f172a); color: #fff; text-align: center; }
.cg-dl-hero .cg-h1 { color: #fff; margin-bottom: 16px; font-size: 48px; }
.cg-dl-hero .cg-sp { color: #94a3b8; }
.cg-dl-main { max-width: 800px; margin: -40px auto 60px; position: relative; z-index: 10; }
.cg-dl-card { background: var(--cg-surf); border-radius: var(--cg-rad-lg); padding: 40px; box-shadow: var(--cg-shadow-hv); border: 1px solid var(--cg-bdr); text-align: center; }
.cg-dl-ico { width: 80px; height: 80px; margin: 0 auto 20px; color: var(--cg-pri); }
.cg-dl-name { font-size: 28px; font-weight: 800; margin-bottom: 8px; color: var(--cg-text); }
.cg-dl-meta { display: flex; justify-content: center; gap: 16px; margin-bottom: 32px; color: var(--cg-sub); font-size: 14px; }
.cg-dl-meta span { background: var(--cg-base); padding: 4px 12px; border-radius: 999px; }
.cg-dl-reqs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; text-align: left; background: var(--cg-base); padding: 24px; border-radius: var(--cg-rad); }
.cg-req { font-size: 14px; }
.cg-req b { display: block; color: var(--cg-text); margin-bottom: 4px; }
.cg-req span { color: var(--cg-sub); }
.cg-dl-acts { display: flex; justify-content: center; gap: 16px; }

/* Guides */
.cg-ggrid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 60px; }
.cg-gcol { background: var(--cg-surf); padding: 32px; border-radius: var(--cg-rad); border: 1px solid var(--cg-bdr); }
.cg-gtit { font-size: 24px; font-weight: 700; margin-bottom: 24px; display: flex; align-items: center; gap: 12px; }
.cg-gtit svg { color: var(--cg-pri); width: 28px; height: 28px; }
.cg-step { display: flex; gap: 16px; margin-bottom: 20px; }
.cg-snum { width: 32px; height: 32px; border-radius: 50%; background: rgba(79,70,229,0.1); color: var(--cg-pri); font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cg-sinfo h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.cg-sinfo p { font-size: 14px; color: var(--cg-sub); }

/* Timeline */
.cg-ver { border-left: 2px solid var(--cg-bdr); margin-left: 20px; padding-left: 30px; }
.cg-vitem { position: relative; margin-bottom: 32px; }
.cg-vdot { position: absolute; left: -39px; top: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--cg-pri); border: 4px solid var(--cg-surf); }
.cg-vhead { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.cg-vnum { font-size: 18px; font-weight: 700; }
.cg-vdate { font-size: 14px; color: var(--cg-muted); }
.cg-vtag { padding: 2px 8px; background: rgba(20,184,166,0.1); color: var(--cg-ter); font-size: 12px; font-weight: 600; border-radius: 4px; }
.cg-vdesc { font-size: 15px; color: var(--cg-sub); }

/* Article Layout */
.cg-art-wrap { display: flex; gap: 40px; align-items: flex-start; }
.cg-main { flex: 1; min-width: 0; }
.cg-side { width: 320px; flex-shrink: 0; position: sticky; top: 100px; }
.cg-box { background: var(--cg-surf); border: 1px solid var(--cg-bdr); border-radius: var(--cg-rad); padding: 24px; margin-bottom: 24px; box-shadow: 0 4px 10px rgba(0,0,0,0.02); }
.cg-boxtit { font-size: 18px; font-weight: 700; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--cg-bdr); }
.cg-art-hero { padding: 140px 0 60px; background: #fff; border-bottom: 1px solid var(--cg-bdr); }
.cg-art-hero .cg-h1 { font-size: 42px; margin-bottom: 20px; }
.cg-kw { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.cg-kw span { padding: 6px 14px; background: var(--cg-base); border-radius: 999px; font-size: 13px; color: var(--cg-sub); border: 1px solid var(--cg-bdr); }
.cg-art-body h2 { font-size: 28px; font-weight: 700; margin: 40px 0 20px; color: var(--cg-text); }
.cg-art-body h3 { font-size: 22px; font-weight: 600; margin: 30px 0 16px; }
.cg-art-body p { font-size: 16px; color: var(--cg-sub); margin-bottom: 16px; line-height: 1.8; }
.cg-art-body ul { margin-bottom: 24px; padding-left: 20px; }
.cg-art-body li { margin-bottom: 10px; font-size: 16px; color: var(--cg-sub); position: relative; }
.cg-art-body li::before { content: "•"; color: var(--cg-pri); position: absolute; left: -16px; font-weight: bold; }
.cg-toc a { display: block; padding: 8px 0; color: var(--cg-sub); font-size: 15px; border-bottom: 1px dashed var(--cg-bdr); }
.cg-toc a:hover { color: var(--cg-pri); padding-left: 5px; transition: all 0.2s; }
.cg-side-btn { display: flex; align-items: center; gap: 12px; padding: 12px; background: var(--cg-base); border-radius: var(--cg-rad-sm); margin-bottom: 12px; font-weight: 600; color: var(--cg-text); transition: all 0.2s; border: 1px solid var(--cg-bdr); }
.cg-side-btn:hover { border-color: var(--cg-pri); color: var(--cg-pri); }
.cg-side-btn svg { width: 24px; height: 24px; }
.cg-cta-block { background: linear-gradient(135deg, var(--cg-pri), var(--cg-sec)); border-radius: var(--cg-rad-lg); padding: 40px; text-align: center; color: #fff; margin-top: 40px; }
.cg-cta-block h3 { color: #fff; margin-bottom: 12px; }
.cg-cta-block p { color: rgba(255,255,255,0.9); margin-bottom: 24px; }
.cg-cta-btn { display: inline-block; padding: 14px 32px; background: #fff; color: var(--cg-pri); font-weight: 700; border-radius: 999px; transition: transform 0.3s; }
.cg-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }

/* Footer */
.cg-foot { background: #0f172a; color: #94a3b8; padding: 60px 0 30px; text-align: center; }
.cg-fsafe { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; background: rgba(20,184,166,0.1); color: var(--cg-ter); border-radius: 999px; font-weight: 600; margin-bottom: 30px; border: 1px solid rgba(20,184,166,0.2); }
.cg-fsafe svg { width: 20px; height: 20px; }
.cg-fnote { font-size: 14px; max-width: 600px; margin: 0 auto; line-height: 1.6; }

/* Responsive */
@media (max-width: 992px) {
  .cg-menu { display: none; position: absolute; top: 72px; left: 0; right: 0; background: var(--cg-surf); flex-direction: column; padding: 20px; border-bottom: 1px solid var(--cg-bdr); box-shadow: var(--cg-shadow); }
  .cg-menu.cg-show { display: flex; }
  .cg-menu-btn { display: block; }
  .cg-h1 { font-size: 40px; }
  .cg-fgrid, .cg-pgrid, .cg-dash { grid-template-columns: repeat(2, 1fr); }
  .cg-dive, .cg-dive.rev { flex-direction: column; gap: 30px; }
  .cg-rgrid { grid-template-columns: 1fr; }
  .cg-art-wrap { flex-direction: column; }
  .cg-side { width: 100%; position: static; }
  .cg-dl-reqs { grid-template-columns: 1fr; }
  .cg-ggrid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .cg-fgrid, .cg-pgrid, .cg-dash { grid-template-columns: 1fr; }
  .cg-hero-acts { flex-direction: column; }
  .cg-btn { width: 100%; }
}