/* Chrome Forge — Industrial Precision Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
:root{--s9:#0f1218;--s8:#1a1f2e;--s7:#252b3b;--s6:#323848;--s5:#4a5168;--s4:#6b7394;--s3:#9ca3bf;--s2:#c8cde0;--s1:#e4e7f0;--s0:#f3f4f8;--blue:#3b82f6;--bluel:#60a5fa;--blued:#2563eb;--orange:#f97316;--amber:#f59e0b;--emerald:#10b981;--rose:#f43f5e;--violet:#8b5cf6;--cyan:#06b6d4;--white:#fff;--r:12px;--rs:8px;--rl:16px;--sh:0 4px 12px rgba(15,18,24,0.1);--shl:0 12px 40px rgba(15,18,24,0.15);--shx:0 20px 60px rgba(15,18,24,0.2)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--s8);background:var(--white);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.6}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
a{text-decoration:none;color:inherit}
.site-nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--s1);transition:box-shadow 0.3s}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--s9)}
.nav-brand svg{width:32px;height:32px}
.nav-brand .bd{color:var(--blue)}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none}
.nav-link{display:inline-flex;align-items:center;padding:8px 18px;font-size:14px;font-weight:600;color:var(--s5);border-radius:999px;transition:all 0.25s}
.nav-link:hover{color:var(--s8);background:var(--s0)}
.nav-link.on{color:var(--white);background:var(--blue);box-shadow:0 2px 8px rgba(59,130,246,0.35)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle svg{width:24px;height:24px;color:var(--s7)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;font-size:15px;font-weight:600;border:none;border-radius:999px;cursor:pointer;transition:all 0.3s;white-space:nowrap}
.btn:disabled{opacity:0.6;cursor:not-allowed}
.btn-blue{background:var(--blue);color:var(--white);box-shadow:0 2px 8px rgba(59,130,246,0.35)}
.btn-blue:hover{background:var(--blued);box-shadow:0 4px 16px rgba(59,130,246,0.45);transform:translateY(-1px)}
.btn-orange{background:var(--orange);color:var(--white);box-shadow:0 2px 8px rgba(249,115,22,0.35)}
.btn-orange:hover{background:#ea580c;box-shadow:0 4px 16px rgba(249,115,22,0.45);transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--blue);border:2px solid var(--blue)}
.btn-outline:hover{background:var(--blue);color:var(--white)}
.btn-outline-dark{background:transparent;color:var(--s7);border:2px solid var(--s3)}
.btn-outline-dark:hover{border-color:var(--s5);color:var(--s9)}
.btn-white{background:var(--white);color:var(--blue);box-shadow:var(--sh)}
.btn-white:hover{box-shadow:var(--shl);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--s5);padding:8px 16px}
.btn-ghost:hover{color:var(--s8);background:var(--s0)}
.btn-lg{padding:16px 36px;font-size:17px}
.btn-sm{padding:8px 18px;font-size:13px}
.btn svg{width:18px;height:18px;flex-shrink:0}
.sec{padding:80px 0}
.sec-white{background:var(--white)}
.sec-gray{background:var(--s0)}
.sec-dark{background:var(--s9);color:var(--s2)}
.sec-steel{background:var(--s8);color:var(--s2)}
.sec-blue{background:linear-gradient(135deg,var(--blued),var(--blue));color:var(--white)}
.sec-head{text-align:center;margin-bottom:56px}
.sec-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;font-size:13px;font-weight:600;border-radius:999px;margin-bottom:16px}
.sec-chip-blue{background:rgba(59,130,246,0.1);color:var(--blue)}
.sec-chip-orange{background:rgba(249,115,22,0.1);color:var(--orange)}
.sec-chip-white{background:rgba(255,255,255,0.15);color:var(--white)}
.sec-chip-dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.sec-title{font-size:36px;font-weight:800;line-height:1.2;margin-bottom:12px;color:var(--s9)}
.sec-title-lt{color:var(--white)}
.sec-sub{font-size:17px;color:var(--s4);max-width:640px;margin:0 auto;line-height:1.6}
.sec-sub-lt{color:var(--s3)}
.hero{position:relative;overflow:hidden;padding:120px 0 80px;background:linear-gradient(160deg,var(--s9) 0%,var(--s8) 40%,#1e3a5f 70%,var(--blued) 100%);color:var(--white)}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(59,130,246,0.15) 0%,transparent 70%);border-radius:50%;animation:float 8s ease-in-out infinite}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(249,115,22,0.1) 0%,transparent 70%);border-radius:50%;animation:float 6s ease-in-out infinite 2s}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;background:rgba(59,130,246,0.2);border:1px solid rgba(59,130,246,0.3);border-radius:999px;font-size:13px;font-weight:600;color:var(--bluel);margin-bottom:24px;backdrop-filter:blur(8px)}
.hero-chip-dot{width:8px;height:8px;border-radius:50%;background:var(--emerald);animation:pulse 2s infinite}
.hero-h1{font-size:52px;font-weight:800;line-height:1.1;margin-bottom:20px;letter-spacing:-0.02em}
.hero-h1 .hl-b{background:linear-gradient(135deg,var(--bluel),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-h1 .hl-o{background:linear-gradient(135deg,var(--orange),var(--amber));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-p{font-size:18px;color:var(--s3);line-height:1.7;margin-bottom:32px;max-width:520px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:40px}
.hero-trust{display:flex;gap:24px;flex-wrap:wrap}
.hero-trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--s3)}
.hero-trust-item svg{width:18px;height:18px;color:var(--emerald);flex-shrink:0}
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center}
.bp-grid{width:100%;max-width:480px;aspect-ratio:1;background:rgba(255,255,255,0.03);border:1px solid rgba(59,130,246,0.2);border-radius:var(--rl);position:relative;overflow:hidden}
.bp-grid::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(59,130,246,0.08) 1px,transparent 1px),linear-gradient(90deg,rgba(59,130,246,0.08) 1px,transparent 1px);background-size:40px 40px}
.bp-card{position:absolute;background:rgba(255,255,255,0.06);border:1px solid rgba(59,130,246,0.2);border-radius:var(--rs);padding:16px;backdrop-filter:blur(8px);animation:float 6s ease-in-out infinite}
.bp-c1{top:12%;left:8%;animation-delay:0s}
.bp-c2{top:8%;right:10%;animation-delay:1.5s}
.bp-c3{bottom:15%;left:12%;animation-delay:3s}
.bp-c4{bottom:10%;right:8%;animation-delay:4.5s}
.bp-ico{width:36px;height:36px;border-radius:var(--rs);display:flex;align-items:center;justify-content:center;margin-bottom:8px}
.bp-ico.ib{background:rgba(59,130,246,0.2)}
.bp-ico.io{background:rgba(249,115,22,0.2)}
.bp-ico.ie{background:rgba(16,185,129,0.2)}
.bp-ico.iv{background:rgba(139,92,246,0.2)}
.bp-ico svg{width:20px;height:20px}
.bp-lbl{font-size:11px;color:var(--s4);margin-bottom:2px}
.bp-val{font-size:16px;font-weight:700;color:var(--white)}
.bp-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));display:flex;align-items:center;justify-content:center;box-shadow:0 0 40px rgba(59,130,246,0.4)}
.bp-center svg{width:40px;height:40px;color:var(--white)}
.stats-bar{padding:40px 0;background:var(--s0);border-top:1px solid var(--s1);border-bottom:1px solid var(--s1)}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center}
.stat-num{font-size:36px;font-weight:800;color:var(--blue);line-height:1.1}
.stat-num.co{color:var(--orange)}
.stat-num.ce{color:var(--emerald)}
.stat-num.cv{color:var(--violet)}
.stat-lbl{font-size:14px;color:var(--s4);margin-top:4px}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat-card{background:var(--white);border:1px solid var(--s1);border-radius:var(--rl);padding:32px;transition:all 0.3s;position:relative;overflow:hidden}
.feat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;transform:scaleX(0);transition:transform 0.3s;transform-origin:left}
.feat-card:hover{box-shadow:var(--shl);transform:translateY(-4px);border-color:transparent}
.feat-card:hover::before{transform:scaleX(1)}
.fc-b::before{background:var(--blue)}
.fc-o::before{background:var(--orange)}
.fc-e::before{background:var(--emerald)}
.fc-v::before{background:var(--violet)}
.fc-r::before{background:var(--rose)}
.fc-c::before{background:var(--cyan)}
.fc-a::before{background:var(--amber)}
.fc-b2::before{background:var(--bluel)}
.fc-e2::before{background:#34d399}
.feat-icon{width:48px;height:48px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.fi-b{background:rgba(59,130,246,0.1);color:var(--blue)}
.fi-o{background:rgba(249,115,22,0.1);color:var(--orange)}
.fi-e{background:rgba(16,185,129,0.1);color:var(--emerald)}
.fi-v{background:rgba(139,92,246,0.1);color:var(--violet)}
.fi-r{background:rgba(244,63,94,0.1);color:var(--rose)}
.fi-c{background:rgba(6,182,212,0.1);color:var(--cyan)}
.fi-a{background:rgba(245,158,11,0.1);color:var(--amber)}
.fi-b2{background:rgba(96,165,250,0.1);color:var(--bluel)}
.fi-e2{background:rgba(52,211,153,0.1);color:#34d399}
.feat-icon svg{width:24px;height:24px}
.feat-name{font-size:18px;font-weight:700;margin-bottom:8px;color:var(--s9)}
.feat-desc{font-size:14px;color:var(--s4);line-height:1.7}
.plat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.plat-card{background:var(--white);border:1px solid var(--s1);border-radius:var(--rl);padding:28px;text-align:center;transition:all 0.3s}
.plat-card:hover{box-shadow:var(--sh);transform:translateY(-2px)}
.plat-card.featured{background:var(--s9);border-color:var(--s7);color:var(--white)}
.plat-card.featured .plat-name{color:var(--white)}
.plat-card.featured .plat-ver{color:var(--s3)}
.plat-badge{display:inline-block;padding:4px 12px;font-size:11px;font-weight:700;border-radius:999px;margin-bottom:12px;background:var(--orange);color:var(--white)}
.plat-icon{width:48px;height:48px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;border-radius:var(--r);background:var(--s0)}
.plat-card.featured .plat-icon{background:rgba(59,130,246,0.15)}
.plat-icon svg{width:28px;height:28px}
.plat-name{font-size:17px;font-weight:700;margin-bottom:4px;color:var(--s9)}
.plat-ver{font-size:13px;color:var(--s4);margin-bottom:16px}
.dive-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding:60px 0;border-bottom:1px solid var(--s1)}
.dive-row.flip{direction:rtl}
.dive-row.flip>*{direction:ltr}
.dive-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;font-size:12px;font-weight:700;border-radius:999px;margin-bottom:16px}
.dive-chip.dcb{background:rgba(59,130,246,0.1);color:var(--blue)}
.dive-chip.dco{background:rgba(249,115,22,0.1);color:var(--orange)}
.dive-chip.dce{background:rgba(16,185,129,0.1);color:var(--emerald)}
.dive-chip.dcv{background:rgba(139,92,246,0.1);color:var(--violet)}
.dive-chip-dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.dive-title{font-size:28px;font-weight:800;margin-bottom:12px;color:var(--s9)}
.dive-desc{font-size:15px;color:var(--s4);line-height:1.7;margin-bottom:20px}
.dive-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.dive-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--s6)}
.dive-list li svg{width:18px;height:18px;color:var(--emerald);flex-shrink:0;margin-top:2px}
.dive-visual{background:var(--s0);border:1px solid var(--s1);border-radius:var(--rl);padding:32px}
.dv-gauge{margin-bottom:20px}
.dv-gauge-label{font-size:13px;font-weight:600;color:var(--s5);margin-bottom:8px}
.dv-gauge-track{height:10px;background:var(--s2);border-radius:99px;overflow:hidden}
.dv-gauge-fill{height:100%;border-radius:99px;transition:width 0.6s}
.gf-b{background:linear-gradient(90deg,var(--blue),var(--cyan))}
.gf-o{background:linear-gradient(90deg,var(--orange),var(--amber))}
.gf-e{background:linear-gradient(90deg,var(--emerald),#34d399)}
.gf-v{background:linear-gradient(90deg,var(--violet),#a78bfa)}
.dv-gauge-val{font-size:13px;font-weight:700;color:var(--s7);margin-top:4px;text-align:right}
.dv-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.dv-stat{background:var(--white);border:1px solid var(--s1);border-radius:var(--rs);padding:14px;text-align:center}
.dv-stat-num{font-size:22px;font-weight:800;color:var(--blue)}
.dv-stat-num.co{color:var(--orange)}
.dv-stat-num.ce{color:var(--emerald)}
.dv-stat-num.cv{color:var(--violet)}
.dv-stat-lbl{font-size:12px;color:var(--s4);margin-top:2px}
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rev-card{background:var(--white);border:1px solid var(--s1);border-radius:var(--rl);padding:28px;transition:all 0.3s}
.rev-card:hover{box-shadow:var(--sh)}
.rev-top{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.rev-avatar{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;color:var(--white);flex-shrink:0}
.av-b{background:var(--blue)}
.av-o{background:var(--orange)}
.av-e{background:var(--emerald)}
.av-v{background:var(--violet)}
.av-r{background:var(--rose)}
.av-c{background:var(--cyan)}
.rev-name{font-size:15px;font-weight:700;color:var(--s9)}
.rev-role{font-size:12px;color:var(--s4)}
.rev-stars{display:flex;gap:2px;margin-bottom:12px}
.rev-stars svg{width:16px;height:16px;fill:var(--amber);color:var(--amber)}
.rev-text{font-size:14px;color:var(--s5);line-height:1.7}
.cmp-wrap{overflow-x:auto;margin:0 -24px;padding:0 24px}
.cmp-table{width:100%;border-collapse:collapse;background:var(--white);border-radius:var(--r);overflow:hidden;border:1px solid var(--s1);min-width:700px}
.cmp-table th{background:var(--s9);color:var(--white);padding:14px 18px;font-size:13px;font-weight:700;text-align:left}
.cmp-table td{padding:14px 18px;font-size:14px;border-bottom:1px solid var(--s1);color:var(--s6)}
.cmp-table tr:hover td{background:var(--s0)}
.cmp-hl{color:var(--blue);font-weight:700}
.yes{color:var(--emerald);font-weight:600}
.no{color:var(--rose);font-weight:600}
.part{color:var(--amber);font-weight:600}
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--white);border:1px solid var(--s1);border-radius:var(--r);overflow:hidden;transition:all 0.3s}
.faq-item:hover{border-color:var(--s2)}
.faq-item.open{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;cursor:pointer;font-size:15px;font-weight:600;color:var(--s8);gap:12px}
.faq-chevron{width:20px;height:20px;color:var(--s4);transition:transform 0.3s;flex-shrink:0}
.faq-item.open .faq-chevron{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.35s ease}
.faq-a-inner{padding:0 24px 20px;font-size:14px;color:var(--s5);line-height:1.8}
.faq-item.open .faq-a{max-height:500px}
.cta-banner{padding:80px 0;background:linear-gradient(135deg,var(--s9),var(--s8),#1e3a5f);color:var(--white);text-align:center;position:relative;overflow:hidden}
.cta-banner::before{content:'';position:absolute;top:-50%;right:-20%;width:500px;height:500px;background:radial-gradient(circle,rgba(59,130,246,0.12) 0%,transparent 70%);border-radius:50%}
.cta-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;background:rgba(59,130,246,0.2);border:1px solid rgba(59,130,246,0.3);border-radius:999px;font-size:13px;font-weight:600;color:var(--bluel);margin-bottom:20px}
.cta-chip-dot{width:6px;height:6px;border-radius:50%;background:var(--emerald);animation:pulse 2s infinite}
.cta-h2{font-size:36px;font-weight:800;margin-bottom:12px;position:relative;z-index:1}
.cta-p{font-size:17px;color:var(--s3);margin-bottom:32px;max-width:560px;margin-left:auto;margin-right:auto;position:relative;z-index:1}
.cta-btns{display:flex;gap:12px;justify-content:center;position:relative;z-index:1;flex-wrap:wrap}
.dl-hero{padding:100px 0 60px;background:linear-gradient(160deg,var(--s9),var(--s8),#1e3a5f);color:var(--white);text-align:center}
.dl-hero-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;background:rgba(59,130,246,0.2);border:1px solid rgba(59,130,246,0.3);border-radius:999px;font-size:13px;font-weight:600;color:var(--bluel);margin-bottom:20px}
.dl-hero-chip-dot{width:8px;height:8px;border-radius:50%;background:var(--emerald);animation:pulse 2s infinite}
.dl-hero-title{font-size:40px;font-weight:800;margin-bottom:12px}
.dl-hero-sub{font-size:17px;color:var(--s3);max-width:600px;margin:0 auto}
.dl-main{max-width:900px;margin:-40px auto 0;position:relative;z-index:2}
.dl-card{background:var(--white);border-radius:var(--rl);box-shadow:var(--shx);overflow:hidden}
.dl-card-head{display:flex;align-items:center;gap:20px;padding:32px;background:var(--s0);border-bottom:1px solid var(--s1)}
.dl-card-icon{width:64px;height:64px;border-radius:var(--r);background:rgba(59,130,246,0.1);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.dl-card-icon svg{width:36px;height:36px;color:var(--blue)}
.dl-card-info{flex:1}
.dl-card-name{font-size:22px;font-weight:800;color:var(--s9)}
.dl-card-meta{font-size:14px;color:var(--s4);margin-top:4px}
.dl-specs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:28px 32px}
.dl-spec{padding:12px;background:var(--s0);border-radius:var(--rs)}
.dl-spec-label{font-size:12px;color:var(--s4);margin-bottom:2px}
.dl-spec-val{font-size:15px;font-weight:700;color:var(--s8)}
.dl-sec-badge{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:rgba(16,185,129,0.1);color:var(--emerald);font-size:13px;font-weight:600;border-radius:999px;margin:0 32px 20px}
.dl-sec-badge svg{width:16px;height:16px}
.dl-card-btns{display:flex;gap:12px;padding:0 32px 28px}
.op-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.op-card{background:var(--white);border:1px solid var(--s1);border-radius:var(--rl);padding:28px}
.op-icon{width:44px;height:44px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;margin-bottom:12px;background:var(--s0)}
.op-icon svg{width:24px;height:24px}
.op-name{font-size:17px;font-weight:700;color:var(--s9);margin-bottom:4px}
.op-ver{font-size:13px;color:var(--s4);margin-bottom:12px}
.op-steps{list-style:none;display:flex;flex-direction:column;gap:8px}
.op-steps li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--s5)}
.op-steps li span{width:22px;height:22px;border-radius:50%;background:var(--blue);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.guide-col-title{font-size:20px;font-weight:800;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.guide-col-dot{width:10px;height:10px;border-radius:50%}
.guide-col-dot.gd-b{background:var(--blue)}
.guide-col-dot.gd-o{background:var(--orange)}
.guide-steps{display:flex;flex-direction:column;gap:16px}
.gstep{display:flex;gap:16px;align-items:flex-start}
.gstep-num{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;color:var(--white);flex-shrink:0}
.gn-b{background:var(--blue)}
.gn-o{background:var(--orange)}
.gstep-body{flex:1}
.gstep-title{font-size:15px;font-weight:700;color:var(--s9);margin-bottom:4px}
.gstep-desc{font-size:13px;color:var(--s4);line-height:1.6}
.req-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.req-card{background:var(--white);border:1px solid var(--s1);border-radius:var(--r);padding:24px;text-align:center}
.req-icon{width:40px;height:40px;margin:0 auto 10px;display:flex;align-items:center;justify-content:center;border-radius:var(--rs);background:var(--s0)}
.req-icon svg{width:22px;height:22px}
.req-title{font-size:15px;font-weight:700;color:var(--s9);margin-bottom:4px}
.req-val{font-size:13px;color:var(--s4);line-height:1.5}
.ver-list{display:flex;flex-direction:column;gap:0;position:relative}
.ver-item{display:grid;grid-template-columns:40px 1fr;gap:16px;align-items:start}
.ver-dot-col{display:flex;flex-direction:column;align-items:center}
.ver-dot{width:14px;height:14px;border-radius:50%;border:3px solid var(--white);box-shadow:0 0 0 2px var(--s3);flex-shrink:0}
.vd-b{background:var(--blue);box-shadow:0 0 0 2px var(--blue)}
.vd-o{background:var(--orange);box-shadow:0 0 0 2px var(--orange)}
.vd-e{background:var(--emerald);box-shadow:0 0 0 2px var(--emerald)}
.vd-v{background:var(--violet);box-shadow:0 0 0 2px var(--violet)}
.vd-a{background:var(--amber);box-shadow:0 0 0 2px var(--amber)}
.ver-line{width:2px;height:100%;min-height:30px;background:var(--s1);flex-shrink:0}
.ver-body{padding-bottom:24px}
.ver-head{display:flex;align-items:center;gap:10px;margin-bottom:4px}
.ver-num{font-size:15px;font-weight:700;color:var(--s9)}
.ver-tag{padding:3px 10px;font-size:11px;font-weight:700;border-radius:999px}
.vt-stable{background:rgba(16,185,129,0.1);color:var(--emerald)}
.vt-lts{background:rgba(59,130,246,0.1);color:var(--blue)}
.vt-beta{background:rgba(249,115,22,0.1);color:var(--orange)}
.ver-date{font-size:12px;color:var(--s4)}
.ver-desc{font-size:13px;color:var(--s5);line-height:1.6}
.sec-banner{display:flex;align-items:center;gap:16px;padding:24px 32px;background:rgba(16,185,129,0.06);border:1px solid rgba(16,185,129,0.2);border-radius:var(--rl)}
.sec-banner-ico{width:48px;height:48px;border-radius:50%;background:rgba(16,185,129,0.1);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sec-banner-ico svg{width:24px;height:24px;color:var(--emerald)}
.sec-banner-title{font-size:16px;font-weight:700;color:var(--s9);margin-bottom:4px}
.sec-banner-desc{font-size:14px;color:var(--s4);line-height:1.6}
.art-hero{padding:100px 0 60px;background:linear-gradient(160deg,var(--s9),var(--s8),#1e3a5f);color:var(--white);text-align:center}
.art-hero-title{font-size:40px;font-weight:800;margin-bottom:12px}
.art-hero-sub{font-size:17px;color:var(--s3);max-width:600px;margin:0 auto 24px}
.kw-strip{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.kw{padding:6px 14px;background:rgba(59,130,246,0.15);border:1px solid rgba(59,130,246,0.25);border-radius:999px;font-size:12px;font-weight:600;color:var(--bluel)}
.art-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.art-body{font-size:15px;color:var(--s6);line-height:1.9}
.art-body h2{font-size:24px;font-weight:800;color:var(--s9);margin:40px 0 16px;padding-top:20px;border-top:2px solid var(--s1)}
.art-body h2:first-child{margin-top:0;border-top:none}
.art-body h3{font-size:18px;font-weight:700;color:var(--s8);margin:24px 0 12px}
.art-body p{margin-bottom:16px}
.art-body ul{margin:0 0 16px 20px}
.art-body li{margin-bottom:8px}
.art-body strong{color:var(--s9);font-weight:700}
.inline-cta{background:linear-gradient(135deg,rgba(59,130,246,0.08),rgba(249,115,22,0.08));border:1px solid rgba(59,130,246,0.2);border-radius:var(--rl);padding:28px;margin:32px 0;text-align:center}
.inline-cta-title{font-size:18px;font-weight:700;color:var(--s9);margin-bottom:8px}
.inline-cta-desc{font-size:14px;color:var(--s4);margin-bottom:16px}
.tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:16px 0}
.tip-card{background:var(--s0);border:1px solid var(--s1);border-radius:var(--r);padding:20px}
.tip-num{width:28px;height:28px;border-radius:50%;background:var(--blue);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;margin-bottom:8px}
.tip-title{font-size:14px;font-weight:700;color:var(--s9);margin-bottom:4px}
.tip-desc{font-size:13px;color:var(--s4);line-height:1.6}
.sidebar{position:sticky;top:80px;display:flex;flex-direction:column;gap:20px}
.sbox{background:var(--white);border:1px solid var(--s1);border-radius:var(--rl);padding:24px}
.sbox-title{font-size:15px;font-weight:700;color:var(--s9);margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--s1)}
.sdl-btn{display:flex;align-items:center;gap:12px;width:100%;padding:12px 16px;border:1px solid var(--s1);border-radius:var(--r);background:var(--white);cursor:pointer;transition:all 0.3s;margin-bottom:10px;text-align:left}
.sdl-btn:hover{border-color:var(--blue);background:var(--s0)}
.sdl-btn.primary{background:var(--blue);border-color:var(--blue);color:var(--white)}
.sdl-btn.primary:hover{background:var(--blued)}
.sdl-btn-icon{width:32px;height:32px;border-radius:var(--rs);display:flex;align-items:center;justify-content:center;flex-shrink:0;background:rgba(59,130,246,0.1)}
.sdl-btn.primary .sdl-btn-icon{background:rgba(255,255,255,0.2)}
.sdl-btn-icon svg{width:18px;height:18px;color:var(--blue)}
.sdl-btn.primary .sdl-btn-icon svg{color:var(--white)}
.sdl-btn-info{flex:1}
.sdl-btn-name{font-size:14px;font-weight:700;color:var(--s9)}
.sdl-btn.primary .sdl-btn-name{color:var(--white)}
.sdl-btn-ver{font-size:11px;color:var(--s4)}
.sdl-btn.primary .sdl-btn-ver{color:var(--s3)}
.stoc{list-style:none;display:flex;flex-direction:column;gap:6px}
.stoc li a{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--s4);padding:6px 0;transition:color 0.2s}
.stoc li a:hover{color:var(--blue)}
.stoc li a::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--s3);flex-shrink:0}
.sstat{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.sstat-item{text-align:center;padding:10px;background:var(--s0);border-radius:var(--rs)}
.sstat-num{font-size:18px;font-weight:800;color:var(--blue)}
.sstat-lbl{font-size:11px;color:var(--s4);margin-top:2px}
.side-security{display:flex;align-items:center;gap:8px;padding:14px;background:rgba(16,185,129,0.06);border:1px solid rgba(16,185,129,0.2);border-radius:var(--r);font-size:12px;color:var(--emerald)}
.side-security svg{width:16px;height:16px;flex-shrink:0}
.site-footer{background:var(--s9);color:var(--s3);padding:40px 0;border-top:1px solid var(--s7)}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 24px;text-align:center}
.footer-brand{font-size:18px;font-weight:800;color:var(--white);margin-bottom:12px}
.footer-brand .bd{color:var(--bluel)}
.footer-security{font-size:14px;color:var(--emerald);margin-bottom:8px;display:flex;align-items:center;justify-content:center;gap:6px}
.footer-security svg{width:16px;height:16px}
.footer-note{font-size:12px;color:var(--s5);line-height:1.6}
@media(max-width:1024px){
.hero-inner{grid-template-columns:1fr;text-align:center}
.hero-p{margin:0 auto 32px}
.hero-btns{justify-content:center}
.hero-trust{justify-content:center}
.hero-visual{display:none}
.feat-grid{grid-template-columns:repeat(2,1fr)}
.plat-grid{grid-template-columns:repeat(2,1fr)}
.dive-row{grid-template-columns:1fr;gap:32px}
.dive-row.flip{direction:ltr}
.rev-grid{grid-template-columns:repeat(2,1fr)}
.guide-grid{grid-template-columns:1fr}
.req-grid{grid-template-columns:repeat(2,1fr)}
.art-layout{grid-template-columns:1fr}
.sidebar{position:static}
}
@media(max-width:768px){
.hero-h1{font-size:36px}
.hero{padding:100px 0 60px}
.sec{padding:56px 0}
.sec-title{font-size:28px}
.feat-grid{grid-template-columns:1fr}
.plat-grid{grid-template-columns:1fr}
.rev-grid{grid-template-columns:1fr}
.op-grid{grid-template-columns:1fr}
.dl-specs{grid-template-columns:repeat(2,1fr)}
.stats-row{grid-template-columns:repeat(2,1fr)}
.nav-menu{display:none;position:absolute;top:64px;left:0;right:0;background:var(--white);flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--s1);box-shadow:var(--sh)}
.nav-menu.active{display:flex}
.nav-toggle{display:block}
.tips-grid{grid-template-columns:1fr}
.req-grid{grid-template-columns:1fr}
}