/* ===== STORM BLUE & MINT THEME ===== */
/* Colors: Navy #0c1445, Cyan #06b6d4, Amber #f59e0b, White #fff */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #0c1445;
  --navy2: #1a3a6b;
  --cyan: #06b6d4;
  --cyan2: #0891b2;
  --amber: #f59e0b;
  --amber2: #d97706;
  --white: #ffffff;
  --gray: #f1f5f9;
  --gray2: #e2e8f0;
  --text: #1e293b;
  --text2: #475569;
  --text3: #94a3b8;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(6,182,212,0.08);
  --shadow2: 0 8px 40px rgba(12,20,69,0.12);
}

html { scroll-behavior: smooth; }
body { font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; color: var(--text); background: #fff; line-height: 1.6; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; border: none; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:0.5; } }

/* ===== NAVBAR ===== */
.site-nav {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray2);
  box-shadow: 0 1px 12px rgba(12,20,69,0.06);
}
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 32px; height: 64px; }
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--navy); flex-shrink: 0; }
.nav-brand svg { flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { padding: 6px 16px; border-radius: 20px; font-size: 0.9rem; color: var(--text2); transition: all 0.2s; }
.nav-links a:hover { color: var(--navy); background: var(--gray); }
.nav-links a.active { color: var(--white); background: var(--navy); font-weight: 600; }
.nav-cta { margin-left: auto; }
.nav-mob { display: none; background: none; padding: 6px; border-radius: 8px; color: var(--navy); }

/* ===== BUTTONS ===== */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 8px; font-size: 0.95rem; font-weight: 600; transition: all 0.2s; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy2); transform: translateY(-1px); box-shadow: var(--shadow2); }
.btn-cyan { background: var(--cyan); color: #fff; }
.btn-cyan:hover { background: var(--cyan2); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(6,182,212,0.3); }
.btn-amber { background: var(--amber); color: #fff; }
.btn-amber:hover { background: var(--amber2); transform: translateY(-1px); }
.btn-outline { background: transparent; border: 2px solid var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-outline-w { background: transparent; border: 2px solid rgba(255,255,255,0.6); color: #fff; }
.btn-outline-w:hover { background: rgba(255,255,255,0.15); border-color: #fff; }
.btn-white { background: #fff; color: var(--navy); }
.btn-white:hover { background: var(--gray); }

/* ===== LAYOUT ===== */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.sec { padding: 80px 0; }
.sec-gray { background: var(--gray); }
.sec-navy { background: var(--navy); color: #fff; }
.sec-navy2 { background: var(--navy2); color: #fff; }
.sec-head { text-align: center; margin-bottom: 56px; }
.sec-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(6,182,212,0.1); color: var(--cyan2); border: 1px solid rgba(6,182,212,0.25); border-radius: 20px; padding: 4px 14px; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 16px; }
.sec-tag-amber { background: rgba(245,158,11,0.1); color: var(--amber2); border-color: rgba(245,158,11,0.25); }
.sec-tag-white { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.9); border-color: rgba(255,255,255,0.2); }
.sec-title { font-size: 2.2rem; font-weight: 800; line-height: 1.2; color: var(--navy); }
.sec-title-light { color: #fff; }
.sec-sub { font-size: 1.05rem; color: var(--text2); margin-top: 12px; }
.sec-sub-light { color: rgba(255,255,255,0.75); }

/* ===== HERO ===== */
.hero { background: linear-gradient(135deg, #060d2e 0%, #0c1445 40%, #1a3a6b 100%); padding: 100px 0 80px; overflow: hidden; position: relative; }
.hero::before { content:''; position:absolute; inset:0; background: radial-gradient(ellipse 60% 80% at 70% 40%, rgba(6,182,212,0.12) 0%, transparent 60%); pointer-events:none; }
.hero-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; position: relative; z-index:1; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; background: rgba(6,182,212,0.15); border: 1px solid rgba(6,182,212,0.3); color: var(--cyan); border-radius: 24px; padding: 6px 18px; font-size: 0.85rem; font-weight: 600; margin-bottom: 24px; }
.hero-eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); animation: pulse 2s infinite; flex-shrink:0; }
.hero-title { font-size: 3.2rem; font-weight: 900; line-height: 1.1; color: #fff; margin-bottom: 20px; }
.hero-title .hl { color: var(--cyan); }
.hero-title .hl2 { color: var(--amber); }
.hero-desc { font-size: 1.05rem; color: rgba(255,255,255,0.75); line-height: 1.7; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 24px; margin-top: 32px; flex-wrap: wrap; }
.hero-trust-item { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.6); font-size: 0.85rem; }
.hero-trust-item svg { color: var(--cyan); flex-shrink:0; }

/* Hero Visual — Product Mockup Panel */
.hero-visual { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: 16px; overflow: hidden; backdrop-filter: blur(8px); }
.hv-topbar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: rgba(0,0,0,0.25); border-bottom: 1px solid rgba(255,255,255,0.08); }
.hv-dot { width: 10px; height: 10px; border-radius: 50%; }
.hv-dot.r { background: #ef4444; }
.hv-dot.y { background: #f59e0b; }
.hv-dot.g { background: #22c55e; }
.hv-title { color: rgba(255,255,255,0.5); font-size: 0.8rem; margin-left: 8px; }
.hv-body { padding: 20px; }
.hv-tabs { display: flex; gap: 4px; margin-bottom: 16px; }
.hv-tab { padding: 6px 14px; border-radius: 6px; font-size: 0.8rem; color: rgba(255,255,255,0.5); cursor: default; }
.hv-tab.on { background: var(--cyan); color: #fff; }
.hv-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
.hv-card { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.08); border-radius: 8px; padding: 14px; }
.hv-card-label { font-size: 0.72rem; color: rgba(255,255,255,0.45); margin-bottom: 6px; }
.hv-card-val { font-size: 1.4rem; font-weight: 700; color: #fff; }
.hv-card-val.c { color: var(--cyan); }
.hv-card-val.a { color: var(--amber); }
.hv-bar-wrap { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.08); border-radius: 8px; padding: 14px; }
.hv-bar-label { font-size: 0.72rem; color: rgba(255,255,255,0.45); margin-bottom: 8px; }
.hv-bars { display: flex; flex-direction: column; gap: 6px; }
.hv-bar-row { display: flex; align-items: center; gap: 8px; }
.hv-bar-name { font-size: 0.72rem; color: rgba(255,255,255,0.6); width: 40px; flex-shrink:0; }
.hv-bar-track { flex: 1; height: 6px; background: rgba(255,255,255,0.08); border-radius: 3px; overflow: hidden; }
.hv-bar-fill { height: 100%; border-radius: 3px; }
.hv-bar-fill.c { background: var(--cyan); }
.hv-bar-fill.a { background: var(--amber); }
.hv-bar-fill.g { background: #22c55e; }
.hv-bar-pct { font-size: 0.7rem; color: rgba(255,255,255,0.4); width: 28px; text-align: right; }

/* ===== STATS STRIP ===== */
.stats-strip { background: var(--navy); padding: 0; }
.stats-row { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { padding: 32px 24px; text-align: center; border-right: 1px solid rgba(255,255,255,0.08); }
.stat-item:last-child { border-right: none; }
.stat-num { font-size: 2.4rem; font-weight: 900; color: var(--cyan); line-height: 1; }
.stat-lbl { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 6px; }

/* ===== MODULE TABS ===== */
.mod-section { padding: 80px 0; background: var(--gray); }
.mod-tabs { display: flex; gap: 4px; background: rgba(12,20,69,0.06); border-radius: 12px; padding: 6px; margin-bottom: 40px; flex-wrap: wrap; }
.mod-tab { padding: 10px 24px; border-radius: 8px; font-size: 0.9rem; font-weight: 600; color: var(--text2); cursor: pointer; border: none; background: transparent; transition: all 0.2s; display: flex; align-items: center; gap: 8px; }
.mod-tab:hover { color: var(--navy); background: rgba(255,255,255,0.7); }
.mod-tab.active { background: var(--navy); color: #fff; box-shadow: var(--shadow2); }
.mod-tab.active svg { color: var(--cyan); }
.mod-panel { display: none; }
.mod-panel.active { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; animation: fadeUp 0.3s ease; }
.mod-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(6,182,212,0.12); color: var(--cyan2); border-radius: 6px; padding: 4px 12px; font-size: 0.8rem; font-weight: 600; margin-bottom: 16px; }
.mod-title { font-size: 1.8rem; font-weight: 800; color: var(--navy); margin-bottom: 12px; }
.mod-desc { color: var(--text2); line-height: 1.7; margin-bottom: 24px; }
.mod-feats { display: flex; flex-direction: column; gap: 12px; }
.mod-feat { display: flex; align-items: flex-start; gap: 12px; }
.mod-feat-ico { width: 32px; height: 32px; border-radius: 8px; background: rgba(6,182,212,0.12); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--cyan2); }
.mod-feat-title { font-weight: 700; font-size: 0.9rem; color: var(--navy); }
.mod-feat-desc { font-size: 0.85rem; color: var(--text2); margin-top: 2px; }
.mod-visual { background: #fff; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow2); }
.mv-bar { height: 40px; background: linear-gradient(90deg, var(--navy), var(--navy2)); display: flex; align-items: center; padding: 0 16px; gap: 8px; }
.mv-bar-btn { background: rgba(255,255,255,0.12); border-radius: 4px; padding: 4px 10px; font-size: 0.72rem; color: rgba(255,255,255,0.7); }
.mv-body { padding: 20px; }
.mv-doc-title { font-weight: 700; font-size: 0.9rem; color: var(--navy); margin-bottom: 12px; padding-bottom: 12px; border-bottom: 2px solid var(--gray2); }
.mv-lines { display: flex; flex-direction: column; gap: 8px; }
.mv-line { height: 8px; background: var(--gray2); border-radius: 4px; }
.mv-line.full { width: 100%; }
.mv-line.w90 { width: 90%; }
.mv-line.w75 { width: 75%; }
.mv-line.w60 { width: 60%; }
.mv-line.w45 { width: 45%; }
.mv-line.hl { background: rgba(6,182,212,0.2); }
.mv-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 6px; margin-top: 12px; }
.mv-cell { height: 28px; background: var(--gray); border-radius: 4px; }
.mv-cell.hd { background: linear-gradient(90deg, var(--navy), var(--navy2)); }
.mv-cell.cy { background: rgba(6,182,212,0.2); }

/* ===== FEATURE STRIP ===== */
.feat-strip { padding: 80px 0; background: #fff; }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feat-card { background: #fff; border: 1px solid var(--gray2); border-radius: var(--radius); padding: 32px 28px; transition: all 0.25s; position: relative; overflow: hidden; }
.feat-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background: var(--cyan); transform: scaleX(0); transform-origin: left; transition: transform 0.3s; }
.feat-card:hover { box-shadow: var(--shadow2); transform: translateY(-3px); border-color: transparent; }
.feat-card:hover::before { transform: scaleX(1); }
.feat-card.ac::before { background: var(--amber); }
.feat-card.ag::before { background: #22c55e; }
.feat-card.av::before { background: #8b5cf6; }
.feat-card.ar::before { background: #ef4444; }
.feat-icon { width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.fi-cyan { background: rgba(6,182,212,0.1); color: var(--cyan2); }
.fi-amber { background: rgba(245,158,11,0.1); color: var(--amber2); }
.fi-green { background: rgba(34,197,94,0.1); color: #16a34a; }
.fi-violet { background: rgba(139,92,246,0.1); color: #7c3aed; }
.fi-red { background: rgba(239,68,68,0.1); color: #dc2626; }
.fi-navy { background: rgba(12,20,69,0.08); color: var(--navy); }
.feat-name { font-weight: 800; font-size: 1.05rem; color: var(--navy); margin-bottom: 10px; }
.feat-desc { font-size: 0.9rem; color: var(--text2); line-height: 1.65; }

/* ===== PLATFORM GRID ===== */
.plat-sec { padding: 80px 0; background: var(--gray); }
.plat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.plat-card { background: #fff; border-radius: var(--radius); padding: 32px 24px; text-align: center; border: 2px solid transparent; transition: all 0.25s; box-shadow: 0 2px 12px rgba(0,0,0,0.04); }
.plat-card:hover { border-color: var(--cyan); box-shadow: 0 8px 32px rgba(6,182,212,0.15); transform: translateY(-4px); }
.plat-card.featured { border-color: var(--navy); background: var(--navy); }
.plat-icon { width: 56px; height: 56px; margin: 0 auto 16px; background: var(--gray); border-radius: 14px; display: flex; align-items: center; justify-content: center; }
.plat-card.featured .plat-icon { background: rgba(6,182,212,0.15); }
.plat-name { font-weight: 800; font-size: 1.05rem; color: var(--navy); margin-bottom: 4px; }
.plat-card.featured .plat-name { color: #fff; }
.plat-ver { font-size: 0.82rem; color: var(--text3); margin-bottom: 16px; }
.plat-card.featured .plat-ver { color: rgba(255,255,255,0.55); }
.plat-badge { display: inline-block; background: var(--amber); color: #fff; font-size: 0.72rem; font-weight: 700; padding: 2px 8px; border-radius: 10px; margin-bottom: 12px; letter-spacing: 0.04em; text-transform: uppercase; }
.plat-card .btn { width: 100%; justify-content: center; }

/* ===== SHOWCASE ROWS ===== */
.showcase-sec { padding: 0; }
.showcase-row { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding: 72px 0; }
.showcase-row:nth-child(even) { direction: rtl; }
.showcase-row:nth-child(even) > * { direction: ltr; }
.showcase-row:nth-child(odd) { background: #fff; }
.showcase-row:nth-child(even) { background: var(--gray); }
.sc-inner { padding: 0 24px; max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.sc-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(6,182,212,0.1); color: var(--cyan2); border-radius: 6px; padding: 4px 12px; font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; }
.sc-badge.amber { background: rgba(245,158,11,0.1); color: var(--amber2); }
.sc-badge.green { background: rgba(34,197,94,0.1); color: #16a34a; }
.sc-badge.violet { background: rgba(139,92,246,0.1); color: #7c3aed; }
.sc-title { font-size: 1.9rem; font-weight: 800; color: var(--navy); margin-bottom: 14px; line-height: 1.25; }
.sc-desc { color: var(--text2); line-height: 1.75; margin-bottom: 20px; }
.sc-list { display: flex; flex-direction: column; gap: 10px; }
.sc-list-item { display: flex; align-items: flex-start; gap: 10px; font-size: 0.9rem; color: var(--text2); }
.sc-list-item::before { content:''; width: 18px; height: 18px; border-radius: 50%; background: rgba(6,182,212,0.15); border: 1.5px solid var(--cyan2); flex-shrink:0; margin-top:1px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%230891b2' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: center; }
.sc-visual { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow2); background: linear-gradient(135deg, #e8f4fd, #f0fafb); min-height: 260px; display: flex; flex-direction: column; padding: 24px; }
.sc-visual-title { font-size: 0.78rem; font-weight: 700; color: var(--navy); opacity: 0.5; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; }
.sc-visual-content { flex: 1; display: flex; flex-direction: column; gap: 10px; justify-content: center; }
.sc-v-row { display: flex; align-items: center; gap: 10px; }
.sc-v-label { font-size: 0.78rem; color: var(--text3); width: 64px; flex-shrink:0; }
.sc-v-bar { flex: 1; height: 10px; background: var(--gray2); border-radius: 5px; overflow: hidden; }
.sc-v-fill { height: 100%; border-radius: 5px; background: linear-gradient(90deg, var(--cyan), var(--cyan2)); }
.sc-v-fill.a { background: linear-gradient(90deg, var(--amber), var(--amber2)); }
.sc-v-fill.g { background: linear-gradient(90deg, #22c55e, #16a34a); }
.sc-v-val { font-size: 0.78rem; font-weight: 700; color: var(--navy); width: 32px; text-align: right; }
.sc-v-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.sc-v-chip { padding: 6px 14px; border-radius: 20px; font-size: 0.78rem; font-weight: 600; }
.sc-v-chip.c { background: rgba(6,182,212,0.12); color: var(--cyan2); }
.sc-v-chip.a { background: rgba(245,158,11,0.12); color: var(--amber2); }
.sc-v-chip.g { background: rgba(34,197,94,0.12); color: #16a34a; }
.sc-v-chip.n { background: rgba(12,20,69,0.08); color: var(--navy); }

/* ===== REVIEWS ===== */
.reviews-sec { padding: 80px 0; background: #fff; }
.rev-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.rev-card { background: var(--gray); border-radius: var(--radius); padding: 28px; border: 1px solid var(--gray2); }
.rev-top { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.rev-avatar { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.95rem; color: #fff; flex-shrink: 0; }
.av-c { background: linear-gradient(135deg, var(--cyan), var(--cyan2)); }
.av-a { background: linear-gradient(135deg, var(--amber), var(--amber2)); }
.av-n { background: linear-gradient(135deg, var(--navy), var(--navy2)); }
.av-g { background: linear-gradient(135deg, #22c55e, #16a34a); }
.av-v { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.av-r { background: linear-gradient(135deg, #ef4444, #dc2626); }
.rev-name { font-weight: 700; font-size: 0.95rem; color: var(--navy); }
.rev-role { font-size: 0.8rem; color: var(--text3); }
.rev-stars { color: var(--amber); font-size: 0.9rem; margin-bottom: 10px; letter-spacing: 1px; }
.rev-text { font-size: 0.9rem; color: var(--text2); line-height: 1.65; }

/* ===== COMPARISON ===== */
.cmp-sec { padding: 80px 0; background: var(--gray); }
.cmp-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); }
.cmp-table { width: 100%; border-collapse: collapse; background: #fff; }
.cmp-table th, .cmp-table td { padding: 14px 20px; text-align: center; font-size: 0.9rem; border-bottom: 1px solid var(--gray2); }
.cmp-table th { background: var(--navy); color: #fff; font-weight: 700; }
.cmp-table th:first-child { text-align: left; }
.cmp-table td:first-child { text-align: left; font-weight: 600; color: var(--navy); }
.cmp-table tr:last-child td { border-bottom: none; }
.cmp-table tr:nth-child(even) td { background: var(--gray); }
.cmp-hl th:nth-child(2) { background: var(--cyan2); }
.cmp-hl td:nth-child(2) { font-weight: 700; color: var(--cyan2); background: rgba(6,182,212,0.05); }
.yes { color: #16a34a; font-weight: 700; }
.no { color: #dc2626; }
.part { color: var(--amber2); }

/* ===== FAQ ===== */
.faq-sec { padding: 80px 0; background: #fff; }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--gray); border-radius: 10px; border: 1px solid var(--gray2); overflow: hidden; transition: border-color 0.2s; }
.faq-item.open { border-color: var(--cyan); }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; cursor: pointer; font-weight: 700; font-size: 0.95rem; color: var(--navy); gap: 12px; }
.faq-chevron { width: 20px; height: 20px; border-radius: 50%; background: var(--gray2); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: all 0.25s; }
.faq-chevron svg { transition: transform 0.25s; }
.faq-item.open .faq-chevron { background: var(--cyan); color: #fff; }
.faq-item.open .faq-chevron svg { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a-inner { padding: 0 22px 18px; font-size: 0.9rem; color: var(--text2); line-height: 1.7; }

/* ===== CTA BANNER ===== */
.cta-banner { background: linear-gradient(135deg, var(--navy) 0%, var(--navy2) 60%, var(--cyan2) 100%); padding: 80px 0; text-align: center; position: relative; overflow: hidden; }
.cta-banner::before { content:''; position:absolute; inset:0; background: radial-gradient(circle at 50% 120%, rgba(6,182,212,0.25) 0%, transparent 60%); }
.cta-wrap { position: relative; z-index:1; }
.cta-title { font-size: 2.4rem; font-weight: 900; color: #fff; margin-bottom: 14px; }
.cta-desc { font-size: 1.05rem; color: rgba(255,255,255,0.75); margin-bottom: 36px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== DOWNLOAD PAGE ===== */
.dl-hero { background: linear-gradient(135deg, #060d2e 0%, var(--navy) 50%, var(--navy2) 100%); padding: 80px 0 60px; text-align: center; }
.dl-hero-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(6,182,212,0.15); border: 1px solid rgba(6,182,212,0.3); color: var(--cyan); border-radius: 20px; padding: 5px 16px; font-size: 0.82rem; font-weight: 600; margin-bottom: 20px; }
.dl-hero-title { font-size: 2.6rem; font-weight: 900; color: #fff; margin-bottom: 12px; }
.dl-hero-sub { font-size: 1rem; color: rgba(255,255,255,0.65); }
.dl-main { padding: 60px 0; background: var(--gray); }
.dl-win-card { background: #fff; border-radius: 16px; box-shadow: var(--shadow2); overflow: hidden; max-width: 680px; margin: 0 auto 40px; }
.dl-win-top { background: linear-gradient(90deg, var(--navy), var(--navy2)); padding: 24px 32px; display: flex; align-items: center; gap: 16px; }
.dl-win-icon { width: 52px; height: 52px; border-radius: 12px; background: rgba(6,182,212,0.2); display: flex; align-items: center; justify-content: center; flex-shrink:0; }
.dl-win-name { font-size: 1.3rem; font-weight: 800; color: #fff; }
.dl-win-meta { font-size: 0.82rem; color: rgba(255,255,255,0.55); margin-top: 2px; }
.dl-win-body { padding: 28px 32px; }
.dl-specs { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 24px; }
.dl-spec { background: var(--gray); border-radius: 10px; padding: 14px 16px; }
.dl-spec-label { font-size: 0.75rem; color: var(--text3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.dl-spec-val { font-size: 0.9rem; font-weight: 700; color: var(--navy); }
.dl-sec-badge { background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.25); border-radius: 8px; padding: 10px 16px; display: flex; align-items: center; gap: 8px; color: #16a34a; font-size: 0.85rem; margin-bottom: 24px; }
.dl-sec-badge svg { flex-shrink:0; }
.dl-win-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.dl-win-btns .btn { flex: 1; justify-content: center; min-width: 140px; }

.op-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; max-width: 680px; margin: 0 auto; }
.op-card { background: #fff; border-radius: 14px; padding: 24px; text-align: center; border: 1px solid var(--gray2); box-shadow: 0 2px 12px rgba(0,0,0,0.04); transition: all 0.2s; }
.op-card:hover { box-shadow: var(--shadow2); transform: translateY(-2px); }
.op-icon { width: 48px; height: 48px; background: var(--gray); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; }
.op-name { font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.op-ver { font-size: 0.8rem; color: var(--text3); margin-bottom: 14px; }
.op-card .btn { width: 100%; justify-content: center; }

/* Guide Section */
.guide-sec { padding: 64px 0; background: #fff; }
.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.guide-title { font-size: 1.2rem; font-weight: 800; color: var(--navy); margin-bottom: 24px; display: flex; align-items: center; gap: 10px; }
.guide-steps { display: flex; flex-direction: column; gap: 16px; }
.gstep { display: flex; gap: 16px; align-items: flex-start; }
.gstep-num { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.85rem; color: #fff; flex-shrink: 0; }
.gstep-num.navy { background: var(--navy); }
.gstep-num.cyan { background: var(--cyan); }
.gstep-title { font-weight: 700; font-size: 0.9rem; color: var(--navy); }
.gstep-desc { font-size: 0.85rem; color: var(--text2); margin-top: 4px; }

/* Requirements */
.req-sec { padding: 64px 0; background: var(--gray); }
.req-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.req-card { background: #fff; border-radius: 12px; padding: 24px; border: 1px solid var(--gray2); }
.req-icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(6,182,212,0.1); display: flex; align-items: center; justify-content: center; color: var(--cyan2); margin-bottom: 14px; }
.req-title { font-weight: 800; font-size: 0.95rem; color: var(--navy); margin-bottom: 10px; }
.req-val { font-size: 0.85rem; color: var(--text2); line-height: 1.55; }

/* Version log */
.ver-sec { padding: 64px 0; background: #fff; }
.ver-list { display: flex; flex-direction: column; gap: 0; max-width: 760px; margin: 0 auto; }
.ver-item { display: flex; gap: 20px; position: relative; }
.ver-dot-col { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; }
.ver-dot { width: 14px; height: 14px; border-radius: 50%; flex-shrink: 0; margin-top: 4px; }
.ver-dot.cy { background: var(--cyan); box-shadow: 0 0 0 3px rgba(6,182,212,0.2); }
.ver-dot.am { background: var(--amber); box-shadow: 0 0 0 3px rgba(245,158,11,0.2); }
.ver-dot.gr { background: #22c55e; box-shadow: 0 0 0 3px rgba(34,197,94,0.2); }
.ver-line { flex: 1; width: 2px; background: var(--gray2); margin: 6px 0; }
.ver-body { padding-bottom: 32px; flex: 1; }
.ver-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.ver-num { font-weight: 800; font-size: 0.95rem; color: var(--navy); }
.ver-tag { font-size: 0.72rem; font-weight: 700; padding: 2px 8px; border-radius: 4px; text-transform: uppercase; letter-spacing: 0.05em; }
.ver-tag.stable { background: rgba(6,182,212,0.12); color: var(--cyan2); }
.ver-tag.lts { background: rgba(34,197,94,0.12); color: #16a34a; }
.ver-tag.beta { background: rgba(245,158,11,0.12); color: var(--amber2); }
.ver-date { font-size: 0.8rem; color: var(--text3); }
.ver-desc { font-size: 0.88rem; color: var(--text2); line-height: 1.6; }

/* ===== ARTICLE PAGE ===== */
.art-hero { background: linear-gradient(135deg, #060d2e, var(--navy), var(--navy2)); padding: 72px 0 56px; text-align: center; }
.art-hero-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(6,182,212,0.15); border: 1px solid rgba(6,182,212,0.3); color: var(--cyan); border-radius: 20px; padding: 5px 16px; font-size: 0.82rem; font-weight: 600; margin-bottom: 20px; }
.art-hero-title { font-size: 2.4rem; font-weight: 900; color: #fff; margin-bottom: 14px; }
.art-hero-sub { font-size: 1rem; color: rgba(255,255,255,0.65); max-width: 560px; margin: 0 auto; }
.kw-strip { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 28px; }
.kw { padding: 5px 14px; border-radius: 16px; font-size: 0.78rem; font-weight: 600; background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.8); border: 1px solid rgba(255,255,255,0.15); }
.art-layout { max-width: 1200px; margin: 0 auto; padding: 56px 24px; display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
.art-body h2 { font-size: 1.5rem; font-weight: 800; color: var(--navy); margin: 36px 0 14px; padding-top: 36px; border-top: 1px solid var(--gray2); }
.art-body h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.art-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--navy); margin: 20px 0 10px; }
.art-body p { color: var(--text2); line-height: 1.75; margin-bottom: 14px; font-size: 0.95rem; }
.art-body strong { color: var(--navy); }
.art-body ul, .art-body ol { padding-left: 20px; margin-bottom: 14px; }
.art-body li { color: var(--text2); line-height: 1.7; font-size: 0.95rem; margin-bottom: 6px; }
.inline-cta { background: linear-gradient(135deg, rgba(6,182,212,0.08), rgba(12,20,69,0.06)); border: 1px solid rgba(6,182,212,0.2); border-radius: 12px; padding: 24px 28px; margin: 28px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.inline-cta-title { font-weight: 700; font-size: 1rem; color: var(--navy); }
.inline-cta-desc { font-size: 0.85rem; color: var(--text2); margin-top: 4px; }
.tips-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 16px 0; }
.tip-card { background: var(--gray); border-radius: 10px; padding: 16px 18px; border: 1px solid var(--gray2); }
.tip-card strong { display: block; font-size: 0.9rem; color: var(--navy); margin-bottom: 4px; }
.tip-card p { font-size: 0.85rem; color: var(--text2); margin: 0; }
.sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 20px; }
.sbox { background: #fff; border: 1px solid var(--gray2); border-radius: 12px; padding: 24px; box-shadow: 0 2px 12px rgba(0,0,0,0.04); }
.sbox-title { font-size: 0.9rem; font-weight: 800; color: var(--navy); margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--gray2); }
.sdl-btn { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 8px; font-size: 0.88rem; font-weight: 600; color: #fff; margin-bottom: 8px; cursor: pointer; border: none; width: 100%; background: var(--navy); transition: all 0.2s; }
.sdl-btn:last-child { margin-bottom: 0; }
.sdl-btn:hover { background: var(--navy2); }
.sdl-btn.cy { background: var(--cyan2); }
.sdl-btn.cy:hover { background: var(--cyan); }
.stoc { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.stoc li a { font-size: 0.85rem; color: var(--text2); padding: 4px 0; display: block; border-left: 2px solid transparent; padding-left: 10px; transition: all 0.2s; }
.stoc li a:hover { color: var(--cyan2); border-left-color: var(--cyan2); }
.sstat { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sstat-item { background: var(--gray); border-radius: 8px; padding: 12px; text-align: center; }
.sstat-num { font-size: 1.4rem; font-weight: 900; color: var(--navy); }
.sstat-lbl { font-size: 0.72rem; color: var(--text3); margin-top: 2px; }
.side-security { background: rgba(34,197,94,0.06); border: 1px solid rgba(34,197,94,0.2); border-radius: 8px; padding: 12px 14px; font-size: 0.8rem; color: #16a34a; display: flex; align-items: flex-start; gap: 8px; line-height: 1.5; }
.side-security svg { flex-shrink:0; margin-top:1px; }

/* ===== SECURITY BANNER ===== */
.sec-banner { background: rgba(34,197,94,0.06); border: 1px solid rgba(34,197,94,0.2); border-radius: 12px; padding: 20px 24px; display: flex; align-items: flex-start; gap: 16px; margin: 24px 0; }
.sec-banner-ico { color: #16a34a; flex-shrink: 0; }
.sec-banner-title { font-weight: 700; font-size: 0.95rem; color: #16a34a; margin-bottom: 4px; }
.sec-banner-desc { font-size: 0.85rem; color: var(--text2); line-height: 1.55; }

/* ===== FOOTER ===== */
.site-footer { background: var(--navy); padding: 40px 0 28px; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: #fff; font-size: 1.05rem; margin-bottom: 16px; }
.footer-security { color: rgba(255,255,255,0.6); font-size: 0.82rem; line-height: 1.6; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); }
.footer-security strong { color: rgba(255,255,255,0.85); }
.footer-note { color: rgba(255,255,255,0.35); font-size: 0.78rem; margin-top: 8px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .mod-panel.active, .guide-grid, .art-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .plat-grid { grid-template-columns: repeat(2,1fr); }
  .feat-grid { grid-template-columns: repeat(2,1fr); }
  .req-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-title { font-size: 2.2rem; }
  .hero-visual { display: none; }
  .stats-row { grid-template-columns: repeat(2,1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .mod-tabs { overflow-x: auto; }
  .sc-inner { grid-template-columns: 1fr; gap: 32px; }
  .rev-grid { grid-template-columns: 1fr 1fr; }
  .op-grid { grid-template-columns: 1fr; }
  .dl-specs { grid-template-columns: repeat(2,1fr); }
  .tips-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-mob { display: flex; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--gray2); padding: 12px 24px; gap: 4px; box-shadow: var(--shadow2); }
  .plat-grid { grid-template-columns: 1fr 1fr; }
  .feat-grid { grid-template-columns: 1fr; }
  .sec-title { font-size: 1.7rem; }
  .cta-title { font-size: 1.8rem; }
}
@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
  .rev-grid { grid-template-columns: 1fr; }
  .plat-grid { grid-template-columns: 1fr; }
  .req-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; }
  .dl-win-btns { flex-direction: column; }
  .cta-actions { flex-direction: column; align-items: center; }
}