/* ═══════════════════════════════════════════
   Midnight Forge / Copper-Steel Workshop
   Dark volcanic base + Copper + Cyan accents
   ═══════════════════════════════════════════ */

@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes ember-float{0%,100%{transform:translateY(0) scale(1);opacity:.6}50%{transform:translateY(-12px) scale(1.15);opacity:1}}
@keyframes glow-pulse{0%,100%{box-shadow:0 0 20px rgba(217,119,6,.15)}50%{box-shadow:0 0 40px rgba(217,119,6,.3)}}
@keyframes slide-up{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0c0a09;--bg2:#1c1917;--bg3:#292524;--bg4:#44403c;
  --border:#44403c;--border2:#57534e;
  --copper:#d97706;--copper-h:#b45309;--copper-l:#f59e0b;
  --cyan:#0891b2;--cyan-h:#0e7490;--cyan-l:#22d3ee;
  --red:#dc2626;--green:#16a34a;--amber:#fbbf24;
  --text:#fafaf9;--text2:#d6d3d1;--text3:#a8a29e;--text4:#78716c;
  --radius:10px;--radius2:16px;--radius3:24px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans SC",sans-serif;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font);background:var(--bg);color:var(--text2);line-height:1.7;overflow-x:hidden}
a{color:var(--copper-l);text-decoration:none;transition:color .2s}
a:hover{color:var(--cyan-l)}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ── Navigation ── */
.site-nav{position:sticky;top:0;z-index:100;background:rgba(12,10,9,.85);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.nav-inner{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:700;color:var(--text)}
.art-body h2,.art-body h3{scroll-margin-top:80px}
.nav-brand svg{width:32px;height:32px}
.nav-brand em{font-style:normal;color:var(--copper-l)}
.nav-links{display:flex;gap:4px;list-style:none}
.nav-links a{display:block;padding:8px 18px;border-radius:var(--radius);font-size:14px;font-weight:500;color:var(--text3);transition:all .25s}
.nav-links a:hover{color:var(--text);background:var(--bg2)}
.nav-links a.on{color:var(--copper-l);background:rgba(217,119,6,.12)}
.nav-cta{display:flex;align-items:center;gap:8px}
.nav-mob{display:none;background:none;border:none;color:var(--text2);cursor:pointer;padding:8px}
.nav-mob svg{width:24px;height:24px}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius);font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all .25s;text-decoration:none;line-height:1.4}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-copper{background:linear-gradient(135deg,var(--copper),var(--copper-h));color:#fff;box-shadow:0 4px 20px rgba(217,119,6,.3)}
.btn-copper:hover{background:linear-gradient(135deg,var(--copper-l),var(--copper));box-shadow:0 6px 30px rgba(217,119,6,.4);transform:translateY(-1px)}
.btn-cyan{background:linear-gradient(135deg,var(--cyan),var(--cyan-h));color:#fff;box-shadow:0 4px 20px rgba(8,145,178,.25)}
.btn-cyan:hover{background:linear-gradient(135deg,var(--cyan-l),var(--cyan));box-shadow:0 6px 30px rgba(8,145,178,.35);transform:translateY(-1px)}
.btn-outline{background:transparent;border:1.5px solid var(--border2);color:var(--text2)}
.btn-outline:hover{border-color:var(--copper);color:var(--copper-l);background:rgba(217,119,6,.06)}
.btn-outline-w{background:transparent;border:1.5px solid rgba(255,255,255,.25);color:#fff}
.btn-outline-w:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost{background:transparent;color:var(--text3);padding:8px 16px}
.btn-ghost:hover{color:var(--copper-l)}
.btn-white{background:#fff;color:var(--bg);font-weight:700}
.btn-white:hover{background:var(--copper-l);color:#fff}
.btn-lg{padding:16px 36px;font-size:17px;border-radius:var(--radius2)}
.btn-sm{padding:8px 18px;font-size:13px}

/* ── Sections ── */
.sec{padding:80px 0}
.sec-alt{background:var(--bg2)}
.sec-dark{background:var(--bg)}
.sec-copper{background:linear-gradient(180deg,rgba(217,119,6,.06) 0%,transparent 100%)}
.sec-cyan{background:linear-gradient(180deg,rgba(8,145,178,.06) 0%,transparent 100%)}
.sec-head{text-align:center;margin-bottom:56px}
.sec-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:16px}
.sec-pill-copper{background:rgba(217,119,6,.12);color:var(--copper-l)}
.sec-pill-cyan{background:rgba(8,145,178,.12);color:var(--cyan-l)}
.sec-pill-white{background:rgba(255,255,255,.08);color:var(--text2)}
.pill-dot{width:6px;height:6px;border-radius:50%}
.pill-dot-copper{background:var(--copper-l)}
.pill-dot-cyan{background:var(--cyan-l)}
.sec-title{font-size:36px;font-weight:800;color:var(--text);line-height:1.25;margin-bottom:12px}
.sec-title-light{color:var(--text)}
.sec-sub{font-size:17px;color:var(--text3);max-width:640px;margin:0 auto}
.sec-sub-light{color:var(--text3)}

/* ── Hero ── */
.hero{position:relative;overflow:hidden;padding:100px 0 80px;background:linear-gradient(160deg,var(--bg) 0%,#1a0f00 40%,#0c1a1f 100%)}
.hero::before{content:'';position:absolute;top:-200px;right:-200px;width:600px;height:600px;background:radial-gradient(circle,rgba(217,119,6,.12) 0%,transparent 70%);pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-150px;left:-150px;width:500px;height:500px;background:radial-gradient(circle,rgba(8,145,178,.08) 0%,transparent 70%);pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-text{animation:slide-up .6s ease}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:20px;background:rgba(217,119,6,.12);color:var(--copper-l);font-size:13px;font-weight:600;margin-bottom:20px}
.hero-eyebrow-dot{width:8px;height:8px;border-radius:50%;background:var(--copper-l);animation:ember-float 2s ease-in-out infinite}
.hero-title{font-size:52px;font-weight:900;line-height:1.15;color:var(--text);margin-bottom:20px}
.hero-title .hl{background:linear-gradient(135deg,var(--copper-l),var(--copper));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-title .hl2{background:linear-gradient(135deg,var(--cyan-l),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:18px;color:var(--text3);margin-bottom:32px;line-height:1.7}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:32px}
.hero-trust{display:flex;gap:24px;flex-wrap:wrap}
.hero-trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text3)}
.hero-trust-item svg{width:18px;height:18px;color:var(--copper-l);flex-shrink:0}

/* Hero Visual - Forge Panel */
.hero-visual{position:relative;animation:slide-up .6s ease .15s both}
.forge-panel{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);overflow:hidden;animation:glow-pulse 4s ease-in-out infinite}
.forge-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--bg3);border-bottom:1px solid var(--border)}
.forge-dot{width:10px;height:10px;border-radius:50%}
.forge-dot.r{background:#ef4444}.forge-dot.y{background:#fbbf24}.forge-dot.g{background:#22c55e}
.forge-bar-title{font-size:12px;color:var(--text4);margin-left:8px}
.forge-body{padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.forge-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;transition:all .3s}
.forge-card:hover{border-color:var(--copper);transform:translateY(-2px)}
.forge-card-ico{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.forge-card-ico.copper{background:rgba(217,119,6,.15);color:var(--copper-l)}
.forge-card-ico.cyan{background:rgba(8,145,178,.15);color:var(--cyan-l)}
.forge-card-ico.red{background:rgba(220,38,38,.15);color:#f87171}
.forge-card-ico.green{background:rgba(22,163,74,.15);color:#4ade80}
.forge-card-lbl{font-size:12px;color:var(--text4);margin-bottom:4px}
.forge-card-val{font-size:20px;font-weight:700;color:var(--text)}
.forge-card-val.copper{color:var(--copper-l)}.forge-card-val.cyan{color:var(--cyan-l)}

/* ── Stats Ribbon ── */
.stats-ribbon{padding:40px 0;background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stats-row{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;text-align:center}
.stat-item{padding:12px}
.stat-num{font-size:32px;font-weight:800;line-height:1.2}
.stat-num.copper{background:linear-gradient(135deg,var(--copper-l),var(--copper));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-num.cyan{background:linear-gradient(135deg,var(--cyan-l),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-lbl{font-size:14px;color:var(--text4);margin-top:4px}

/* ── Feature Grid ── */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:28px 24px;transition:all .3s;position:relative;overflow:hidden}
.feat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--copper);transform:scaleX(0);transition:transform .3s;transform-origin:left}
.feat-card:hover::before{transform:scaleX(1)}
.feat-card:hover{border-color:var(--border2);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.feat-card.fc-copper::before{background:var(--copper)}
.feat-card.fc-cyan::before{background:var(--cyan)}
.feat-card.fc-red::before{background:var(--red)}
.feat-card.fc-green::before{background:var(--green)}
.feat-card.fc-amber::before{background:var(--amber)}
.feat-card.fc-violet::before{background:#8b5cf6}
.feat-card.fc-rose::before{background:#f43f5e}
.feat-card.fc-sky::before{background:#0ea5e9}
.feat-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.fi-copper{background:rgba(217,119,6,.12);color:var(--copper-l)}
.fi-cyan{background:rgba(8,145,178,.12);color:var(--cyan-l)}
.fi-red{background:rgba(220,38,38,.12);color:#f87171}
.fi-green{background:rgba(22,163,74,.12);color:#4ade80}
.fi-amber{background:rgba(251,191,36,.12);color:var(--amber)}
.fi-violet{background:rgba(139,92,246,.12);color:#a78bfa}
.fi-rose{background:rgba(244,63,94,.12);color:#fb7185}
.fi-sky{background:rgba(14,165,233,.12);color:#38bdf8}
.feat-name{font-size:17px;font-weight:700;color:var(--text);margin-bottom:8px}
.feat-desc{font-size:14px;color:var(--text3);line-height:1.6}

/* ── Product Tabs ── */
.prod-section{padding:80px 0;background:var(--bg2)}
.prod-tabs{display:flex;gap:4px;justify-content:center;margin-bottom:40px;flex-wrap:wrap}
.prod-tab{padding:10px 24px;border-radius:var(--radius);font-size:14px;font-weight:600;color:var(--text3);background:var(--bg);border:1px solid var(--border);cursor:pointer;transition:all .25s}
.prod-tab:hover{color:var(--text);border-color:var(--border2)}
.prod-tab.on{color:var(--copper-l);background:rgba(217,119,6,.1);border-color:var(--copper)}
.prod-panel{display:none}
.prod-panel.on{display:block}
.prod-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.prod-info{padding:20px 0}
.prod-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:16px;font-size:12px;font-weight:600;margin-bottom:16px}
.pb-copper{background:rgba(217,119,6,.12);color:var(--copper-l)}
.pb-cyan{background:rgba(8,145,178,.12);color:var(--cyan-l)}
.pb-green{background:rgba(22,163,74,.12);color:#4ade80}
.pb-red{background:rgba(220,38,38,.12);color:#f87171}
.prod-title{font-size:28px;font-weight:800;color:var(--text);margin-bottom:12px}
.prod-desc{font-size:16px;color:var(--text3);margin-bottom:24px;line-height:1.7}
.prod-feats{list-style:none;display:grid;gap:12px}
.prod-feat{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text2)}
.prod-feat-dot{width:6px;height:6px;border-radius:50%;margin-top:7px;flex-shrink:0}
.pfd-copper{background:var(--copper-l)}.pfd-cyan{background:var(--cyan-l)}.pfd-green{background:var(--green)}.pfd-red{background:var(--red)}
.prod-visual{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius2);padding:32px;min-height:300px;display:flex;align-items:center;justify-content:center}
.pv-writer{position:relative;width:100%;height:240px}
.pv-line{height:10px;border-radius:5px;margin-bottom:10px;background:var(--bg3)}
.pv-line.w100{width:100%}.pv-line.w80{width:80%}.pv-line.w60{width:60%}.pv-line.w45{width:45%}.pv-line.hl{background:rgba(217,119,6,.2);border:1px solid rgba(217,119,6,.3)}
.pv-sheet{width:100%;display:grid;grid-template-columns:repeat(5,1fr);gap:4px}
.pv-cell{height:28px;border-radius:4px;background:var(--bg3)}
.pv-cell.hd{background:rgba(217,119,6,.15);border:1px solid rgba(217,119,6,.25)}
.pv-cell.cy{background:rgba(8,145,178,.12);border:1px solid rgba(8,145,178,.2)}
.pv-slide{width:100%;aspect-ratio:16/9;border-radius:8px;background:linear-gradient(135deg,rgba(217,119,6,.1),rgba(8,145,178,.1));border:1px solid var(--border);display:flex;align-items:center;justify-content:center;position:relative}
.pv-slide-text{font-size:24px;font-weight:700;color:var(--text)}
.pv-slide-bar{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:flex;gap:6px}
.pv-slide-dot{width:8px;height:8px;border-radius:50%;background:var(--text4)}
.pv-slide-dot.on{background:var(--copper-l)}

/* ── Platform Cards ── */
.plat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.plat-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:28px 24px;text-align:center;transition:all .3s}
.plat-card:hover{border-color:var(--border2);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.plat-card.featured{border-color:var(--copper);background:linear-gradient(180deg,rgba(217,119,6,.06),var(--bg2));position:relative}
.plat-card.featured::after{content:'推荐';position:absolute;top:16px;right:16px;padding:3px 10px;border-radius:10px;font-size:11px;font-weight:700;background:var(--copper);color:#fff}
.plat-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;background:var(--bg3)}
.plat-icon svg{width:24px;height:24px}
.plat-name{font-size:18px;font-weight:700;color:var(--text);margin-bottom:4px}
.plat-ver{font-size:13px;color:var(--text4);margin-bottom:16px}
.plat-btn{width:100%}

/* ── Deep Dive Rows ── */
.dive-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding:60px 0}
.dive-row+.dive-row{border-top:1px solid var(--border)}
.dive-row.rev{direction:rtl}
.dive-row.rev>*{direction:ltr}
.dive-content{min-width:0}
.dive-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:16px;font-size:12px;font-weight:600;margin-bottom:16px}
.db-copper{background:rgba(217,119,6,.12);color:var(--copper-l)}
.db-cyan{background:rgba(8,145,178,.12);color:var(--cyan-l)}
.db-amber{background:rgba(251,191,36,.12);color:var(--amber)}
.db-green{background:rgba(22,163,74,.12);color:#4ade80}
.dive-title{font-size:28px;font-weight:800;color:var(--text);margin-bottom:12px}
.dive-desc{font-size:16px;color:var(--text3);margin-bottom:20px;line-height:1.7}
.dive-list{list-style:none;display:grid;gap:10px}
.dive-list-item{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text2)}
.dive-list-dot{width:6px;height:6px;border-radius:50%;margin-top:7px;flex-shrink:0;background:var(--copper-l)}
.dive-visual{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:32px;min-height:260px}
.dv-header{font-size:13px;font-weight:600;color:var(--text4);margin-bottom:20px;text-transform:uppercase;letter-spacing:1px}
.dv-bar-row{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.dv-bar-label{font-size:13px;color:var(--text3);width:80px;flex-shrink:0}
.dv-bar-track{flex:1;height:8px;border-radius:4px;background:var(--bg)}
.dv-bar-fill{height:100%;border-radius:4px;transition:width .6s ease}
.dvbf-copper{background:linear-gradient(90deg,var(--copper),var(--copper-l))}
.dvbf-cyan{background:linear-gradient(90deg,var(--cyan),var(--cyan-l))}
.dvbf-green{background:linear-gradient(90deg,var(--green),#4ade80)}
.dvbf-amber{background:linear-gradient(90deg,var(--amber),#fde68a)}
.dv-bar-val{font-size:13px;font-weight:600;color:var(--text);width:40px;text-align:right}
.dv-stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.dv-stat{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:14px;text-align:center}
.dv-stat-num{font-size:22px;font-weight:700;color:var(--text)}
.dv-stat-num.copper{color:var(--copper-l)}.dv-stat-num.cyan{color:var(--cyan-l)}
.dv-stat-lbl{font-size:12px;color:var(--text4);margin-top:2px}

/* ── Reviews ── */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rev-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:24px;transition:all .3s}
.rev-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.rev-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.rev-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;color:#fff;flex-shrink:0}
.av-copper{background:linear-gradient(135deg,var(--copper),var(--copper-h))}
.av-cyan{background:linear-gradient(135deg,var(--cyan),var(--cyan-h))}
.av-green{background:linear-gradient(135deg,#16a34a,#15803d)}
.av-amber{background:linear-gradient(135deg,#d97706,#b45309)}
.av-violet{background:linear-gradient(135deg,#8b5cf6,#7c3aed)}
.av-rose{background:linear-gradient(135deg,#f43f5e,#e11d48)}
.rev-info{flex:1}
.rev-name{font-size:14px;font-weight:600;color:var(--text)}
.rev-role{font-size:12px;color:var(--text4)}
.rev-stars{display:flex;gap:2px;margin-bottom:10px;color:var(--amber)}
.rev-stars svg{width:14px;height:14px;fill:var(--amber)}
.rev-text{font-size:14px;color:var(--text3);line-height:1.7}

/* ── Comparison Table ── */
.cmp-wrap{overflow-x:auto;margin:0 -24px;padding:0 24px}
.cmp-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--bg2);border-radius:var(--radius2);overflow:hidden;border:1px solid var(--border);min-width:700px}
.cmp-table th,.cmp-table td{padding:14px 18px;text-align:center;font-size:14px;border-bottom:1px solid var(--border)}
.cmp-table th{background:var(--bg3);color:var(--text);font-weight:700;white-space:nowrap}
.cmp-table td{color:var(--text2)}
.cmp-table td:first-child{text-align:left;font-weight:600;color:var(--text)}
.cmp-hl{background:rgba(217,119,6,.06)}
.cmp-yes{color:var(--green);font-weight:700}
.cmp-no{color:var(--text4)}
.cmp-part{color:var(--amber);font-weight:600}

/* ── FAQ ── */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px;overflow:hidden;transition:border-color .25s}
.faq-item:hover{border-color:var(--border2)}
.faq-item.open{border-color:var(--copper)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;cursor:pointer;font-size:15px;font-weight:600;color:var(--text);background:var(--bg2);transition:background .25s;gap:12px}
.faq-q:hover{background:var(--bg3)}
.faq-chevron{width:20px;height:20px;flex-shrink:0;color:var(--text4);transition:transform .3s}
.faq-item.open .faq-chevron{transform:rotate(180deg);color:var(--copper-l)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 20px 18px;font-size:14px;color:var(--text3);line-height:1.8}
.faq-item.open .faq-a{max-height:600px}

/* ── CTA Banner ── */
.cta-banner{padding:80px 0;background:linear-gradient(135deg,#1a0f00 0%,var(--bg) 50%,#001a1f 100%);text-align:center;position:relative;overflow:hidden}
.cta-banner::before{content:'';position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:600px;height:400px;background:radial-gradient(circle,rgba(217,119,6,.1) 0%,transparent 70%);pointer-events:none}
.cta-inner{position:relative;z-index:1}
.cta-eyebrow{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:16px;font-size:12px;font-weight:600;background:rgba(217,119,6,.12);color:var(--copper-l);margin-bottom:16px}
.cta-title{font-size:36px;font-weight:800;color:var(--text);margin-bottom:12px}
.cta-desc{font-size:17px;color:var(--text3);margin-bottom:32px;max-width:560px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ── Download Hero ── */
.dl-hero{padding:60px 0 40px;background:linear-gradient(160deg,var(--bg) 0%,#1a0f00 50%,var(--bg) 100%);text-align:center}
.dl-hero-tag{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:16px;font-size:12px;font-weight:600;background:rgba(217,119,6,.12);color:var(--copper-l);margin-bottom:16px}
.dl-hero-title{font-size:40px;font-weight:800;color:var(--text);margin-bottom:10px}
.dl-hero-title .copper{color:var(--copper-l)}
.dl-hero-sub{font-size:17px;color:var(--text3)}

/* ── Download Main Card ── */
.dl-main{max-width:680px;margin:0 auto 40px}
.dl-card{background:var(--bg2);border:2px solid var(--copper);border-radius:var(--radius2);overflow:hidden;animation:glow-pulse 4s ease-in-out infinite}
.dl-card-head{display:flex;align-items:center;gap:16px;padding:24px 28px;background:linear-gradient(135deg,rgba(217,119,6,.08),rgba(217,119,6,.02));border-bottom:1px solid var(--border)}
.dl-card-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(217,119,6,.15);color:var(--copper-l);flex-shrink:0}
.dl-card-icon svg{width:28px;height:28px}
.dl-card-info{flex:1}
.dl-card-name{font-size:22px;font-weight:800;color:var(--text)}
.dl-card-meta{font-size:13px;color:var(--text4);margin-top:2px}
.dl-specs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:24px 28px}
.dl-spec{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:12px;text-align:center}
.dl-spec-label{font-size:11px;color:var(--text4);margin-bottom:4px}
.dl-spec-val{font-size:14px;font-weight:600;color:var(--text)}
.dl-sec-badge{display:flex;align-items:center;gap:8px;padding:12px 28px;background:rgba(22,163,74,.06);border-top:1px solid var(--border);font-size:13px;color:var(--green)}
.dl-sec-badge svg{width:16px;height:16px;flex-shrink:0}
.dl-card-btns{display:flex;gap:12px;padding:20px 28px;border-top:1px solid var(--border)}

/* ── Other Platforms ── */
.op-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:60px}
.op-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:24px;text-align:center;transition:all .3s}
.op-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.op-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;background:var(--bg3)}
.op-icon svg{width:22px;height:22px}
.op-name{font-size:16px;font-weight:700;color:var(--text);margin-bottom:4px}
.op-ver{font-size:12px;color:var(--text4);margin-bottom:14px}
.op-steps{text-align:left;margin-top:12px}
.op-step{display:flex;align-items:flex-start;gap:8px;font-size:12px;color:var(--text3);margin-bottom:6px}
.op-step-num{width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;background:rgba(217,119,6,.12);color:var(--copper-l);flex-shrink:0;margin-top:1px}

/* ── Install Guide ── */
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:60px}
.guide-col-title{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);margin-bottom:20px}
.guide-col-dot{width:10px;height:10px;border-radius:50%}
.guide-col-dot.copper{background:var(--copper-l)}.guide-col-dot.cyan{background:var(--cyan-l)}
.guide-steps{list-style:none;counter-reset:gstep}
.gstep{counter-increment:gstep;display:flex;gap:16px;margin-bottom:20px;position:relative}
.gstep-num{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;flex-shrink:0}
.gstep-num.copper{background:rgba(217,119,6,.15);color:var(--copper-l);border:1px solid rgba(217,119,6,.3)}
.gstep-num.cyan{background:rgba(8,145,178,.15);color:var(--cyan-l);border:1px solid rgba(8,145,178,.3)}
.gstep-body{flex:1;padding-top:4px}
.gstep-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:4px}
.gstep-desc{font-size:13px;color:var(--text3);line-height:1.6}

/* ── System Requirements ── */
.req-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:60px}
.req-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-align:center}
.req-icon{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;background:var(--bg3);color:var(--text3)}
.req-icon svg{width:18px;height:18px}
.req-title{font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}
.req-val{font-size:12px;color:var(--text4)}

/* ── Version Timeline ── */
.ver-list{max-width:700px;margin:0 auto}
.ver-item{display:flex;gap:20px;margin-bottom:0;position:relative}
.ver-dot-col{display:flex;flex-direction:column;align-items:center;width:20px;flex-shrink:0}
.ver-dot{width:14px;height:14px;border-radius:50%;border:2px solid var(--bg);flex-shrink:0;z-index:1}
.vd-copper{background:var(--copper-l);box-shadow:0 0 8px rgba(217,119,6,.4)}
.vd-cyan{background:var(--cyan-l);box-shadow:0 0 8px rgba(8,145,178,.4)}
.vd-amber{background:var(--amber);box-shadow:0 0 8px rgba(251,191,36,.4)}
.vd-green{background:var(--green);box-shadow:0 0 8px rgba(22,163,74,.4)}
.vd-violet{background:#8b5cf6;box-shadow:0 0 8px rgba(139,92,246,.4)}
.ver-line{width:2px;flex:1;background:var(--border);min-height:20px}
.ver-body{flex:1;padding-bottom:24px}
.ver-head{display:flex;align-items:center;gap:10px;margin-bottom:6px;flex-wrap:wrap}
.ver-num{font-size:15px;font-weight:700;color:var(--text)}
.ver-tag{padding:2px 10px;border-radius:10px;font-size:11px;font-weight:700}
.vt-stable{background:rgba(22,163,74,.12);color:#4ade80}
.vt-lts{background:rgba(217,119,6,.12);color:var(--copper-l)}
.vt-beta{background:rgba(139,92,246,.12);color:#a78bfa}
.ver-date{font-size:12px;color:var(--text4)}
.ver-desc{font-size:13px;color:var(--text3);line-height:1.6}

/* ── Security Banner ── */
.sec-banner{display:flex;align-items:center;gap:16px;padding:20px 28px;background:rgba(22,163,74,.06);border:1px solid rgba(22,163,74,.2);border-radius:var(--radius2);margin-bottom:40px}
.sec-banner-ico{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(22,163,74,.15);color:var(--green);flex-shrink:0}
.sec-banner-ico svg{width:22px;height:22px}
.sec-banner-text{flex:1}
.sec-banner-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:2px}
.sec-banner-desc{font-size:13px;color:var(--text3)}

/* ── Article Page ── */
.art-hero{padding:80px 0 60px;background:linear-gradient(160deg,var(--bg) 0%,#1a0f00 40%,#0c1a1f 100%);text-align:center}
.art-hero-title{font-size:40px;font-weight:800;color:var(--text);margin-bottom:10px;line-height:1.3}
.art-hero-title .copper{color:var(--copper-l)}
.art-hero-title .cyan{color:var(--cyan-l)}
.art-hero-sub{font-size:17px;color:var(--text3);max-width:600px;margin:0 auto 20px}
.kw-strip{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.kw{padding:5px 14px;border-radius:16px;font-size:12px;font-weight:500;background:var(--bg2);border:1px solid var(--border);color:var(--text3);transition:all .2s}
.kw:hover{border-color:var(--copper);color:var(--copper-l)}
.art-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;padding:60px 0}
.art-body{min-width:0}
.art-body h2{font-size:24px;font-weight:800;color:var(--text);margin:40px 0 16px;padding-bottom:10px;border-bottom:2px solid var(--border)}
.art-body h2:first-child{margin-top:0}
.art-body h3{font-size:18px;font-weight:700;color:var(--text);margin:28px 0 12px}
.art-body p{font-size:15px;color:var(--text3);line-height:1.8;margin-bottom:14px}
.art-body ul,.art-body ol{margin:0 0 14px 20px;font-size:15px;color:var(--text3);line-height:1.8}
.art-body li{margin-bottom:4px}
.art-body strong{color:var(--text);font-weight:600}
.art-body .highlight{color:var(--copper-l);font-weight:600}
.inline-cta{background:linear-gradient(135deg,rgba(217,119,6,.08),rgba(8,145,178,.06));border:1px solid var(--border);border-radius:var(--radius2);padding:28px;margin:32px 0;text-align:center}
.inline-cta-title{font-size:20px;font-weight:700;color:var(--text);margin-bottom:8px}
.inline-cta-desc{font-size:14px;color:var(--text3);margin-bottom:16px}
.tips-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:16px 0}
.tip-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.tip-num{font-size:12px;font-weight:700;color:var(--copper-l);margin-bottom:4px}
.tip-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:4px}
.tip-desc{font-size:13px;color:var(--text3);line-height:1.5}

/* ── Sidebar ── */
.sidebar{position:sticky;top:84px;align-self:start}
.sbox{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:20px;margin-bottom:16px}
.sbox-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.sdl-btn{display:flex;align-items:center;gap:10px;width:100%;padding:12px 16px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg);color:var(--text2);font-size:14px;font-weight:500;cursor:pointer;transition:all .25s;margin-bottom:8px;text-align:left}
.sdl-btn:hover{border-color:var(--copper);color:var(--copper-l);background:rgba(217,119,6,.04)}
.sdl-btn.primary{background:linear-gradient(135deg,var(--copper),var(--copper-h));border-color:var(--copper);color:#fff;font-weight:600}
.sdl-btn.primary:hover{background:linear-gradient(135deg,var(--copper-l),var(--copper))}
.sdl-btn svg{width:18px;height:18px;flex-shrink:0}
.stoc{list-style:none}
.stoc li{margin-bottom:6px}
.stoc a{font-size:13px;color:var(--text4);display:block;padding:4px 0;transition:color .2s}
.stoc a:hover{color:var(--copper-l)}
.sstat{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.sstat-item{text-align:center;padding:10px;background:var(--bg);border-radius:8px}
.sstat-num{font-size:18px;font-weight:700;color:var(--copper-l)}
.sstat-lbl{font-size:11px;color:var(--text4);margin-top:2px}
.side-security{display:flex;align-items:flex-start;gap:10px;padding:14px;background:rgba(22,163,74,.06);border:1px solid rgba(22,163,74,.15);border-radius:var(--radius);font-size:12px;color:var(--text3);line-height:1.6}
.side-security svg{width:18px;height:18px;color:var(--green);flex-shrink:0;margin-top:2px}

/* ── Footer ── */
.site-footer{padding:40px 0;background:var(--bg);border-top:1px solid var(--border)}
.footer-inner{text-align:center}
.footer-brand{font-size:18px;font-weight:700;color:var(--text);margin-bottom:8px}
.footer-brand em{font-style:normal;color:var(--copper-l)}
.footer-security{font-size:14px;color:var(--green);margin-bottom:6px;display:flex;align-items:center;justify-content:center;gap:6px}
.footer-security svg{width:16px;height:16px;flex-shrink:0}
.footer-note{font-size:12px;color:var(--text4);line-height:1.6}

/* ── Responsive ── */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:500px;margin:0 auto}
  .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.rev{direction:ltr}
  .prod-inner{grid-template-columns:1fr}
  .rev-grid{grid-template-columns:repeat(2,1fr)}
  .art-layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .guide-grid{grid-template-columns:1fr}
  .op-grid{grid-template-columns:1fr 1fr}
  .req-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .hero-title{font-size:36px}
  .sec-title{font-size:28px}
  .stats-row{grid-template-columns:repeat(3,1fr)}
  .feat-grid{grid-template-columns:1fr}
  .plat-grid{grid-template-columns:1fr 1fr}
  .rev-grid{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--border);flex-direction:column;padding:16px;gap:4px}
  .nav-links.show{display:flex}
  .nav-mob{display:block}
  .nav-cta .btn{display:none}
  .op-grid{grid-template-columns:1fr}
  .dl-specs{grid-template-columns:repeat(2,1fr)}
  .req-grid{grid-template-columns:1fr 1fr}
  .tips-grid{grid-template-columns:1fr}
  .sstat{grid-template-columns:1fr 1fr}
  .forge-body{grid-template-columns:1fr}
}
@media(max-width:480px){
  .hero-title{font-size:28px}
  .sec-title{font-size:24px}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .plat-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:center}
  .cta-actions .btn{width:100%;max-width:320px}
  .dl-specs{grid-template-columns:1fr 1fr}
  .req-grid{grid-template-columns:1fr}
}