* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif; color: #0F172A; background: #F8FAFC; line-height: 1.6; overflow-x: hidden; }
:root {
  --primary: #0EA5E9; --primary-dark: #0284C7; --primary-light: #38BDF8;
  --accent: #10B981; --success: #10B981; --warning: #F59E0B;
  --bg: #F8FAFC; --card-bg: #FFFFFF; --text: #0F172A; --text-secondary: #475569;
  --border: #E2E8F0; --radius: 16px; --shadow: 0 1px 3px rgba(0,0,0,0.08); --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
  --gradient: linear-gradient(135deg, #0EA5E9, #10B981);
  --gradient-light: linear-gradient(135deg, #38BDF8, #34D399);
}
a { text-decoration: none; }

.progress-bar { position: fixed; top: 0; left: 0; height: 3px; background: var(--gradient); z-index: 10001; transition: width 0.2s; width: 0; }
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 10000; padding: 12px 0; transition: all 0.3s; }
.header.scrolled { background: rgba(255,255,255,0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); box-shadow: 0 1px 3px rgba(0,0,0,0.08); border-bottom: 1px solid rgba(226,232,240,0.6); }
.header-inner { max-width: 1280px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 22px; font-weight: 700; color: var(--text); }
.logo img { height: 36px; width: auto; }
.nav { display: flex; align-items: center; gap: 26px; list-style: none; }
.nav a { text-decoration: none; color: var(--text-secondary); font-size: 15px; font-weight: 500; transition: color 0.2s; white-space: nowrap; }
.nav a:hover { color: var(--primary); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; border-radius: 8px; font-size: 15px; font-weight: 600; text-decoration: none; cursor: pointer; border: none; transition: all 0.2s; white-space: nowrap; }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 4px 15px rgba(14,165,233,0.35); }
.btn-primary:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 6px 25px rgba(14,165,233,0.5); }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-warning { background: linear-gradient(135deg, #F59E0B, #F97316); color: #fff; box-shadow: 0 4px 15px rgba(245,158,11,0.4); }
.btn-warning:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 8px 28px rgba(245,158,11,0.55); }
.btn-lg { padding: 16px 36px; font-size: 18px; border-radius: 12px; }
.btn-xl { padding: 20px 48px; font-size: 20px; border-radius: 14px; }
.btn-white { background: #fff; color: var(--primary); box-shadow: 0 4px 15px rgba(0,0,0,0.1); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.15); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.3s; }

.hero { min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; padding-top: 80px; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(ellipse at 25% 40%, rgba(14,165,233,0.12) 0%, transparent 65%), radial-gradient(ellipse at 75% 25%, rgba(16,185,129,0.1) 0%, transparent 65%); }
.hero-particles { position: absolute; inset: 0; }
.hero-particles canvas { width: 100%; height: 100%; }
.hero-inner { max-width: 1280px; margin: 0 auto; padding: 60px 24px; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; position: relative; z-index: 1; width: 100%; }
.hero-text h1 { font-size: clamp(38px, 4.8vw, 60px); font-weight: 800; line-height: 1.15; margin-bottom: 18px; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-text .subtitle { font-size: 18px; color: var(--text-secondary); margin-bottom: 28px; max-width: 540px; line-height: 1.7; }
.trust-banner { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; background: rgba(255,255,255,0.85); border: 1px solid var(--border); border-radius: 999px; padding: 8px 16px; font-size: 13px; color: var(--text-secondary); margin-bottom: 20px; }
.trust-banner .sep { color: #CBD5E1; }
.trust-banner .star { color: var(--warning); }
.hero-actions { display: flex; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.micro-badges { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 26px; }
.micro-badge { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-secondary); font-weight: 500; }
.micro-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
.hero-platforms { display: flex; gap: 16px; align-items: center; color: var(--text-secondary); font-size: 14px; flex-wrap: wrap; }
.hero-platforms span { display: inline-flex; align-items: center; gap: 6px; }
.hero-platforms .pdot { width: 5px; height: 5px; border-radius: 50%; background: #CBD5E1; }
.hero-visual { display: flex; align-items: center; justify-content: center; }

.vpn-simulator { width: 100%; max-width: 430px; background: #0F172A; border-radius: 24px; box-shadow: 0 25px 60px rgba(15,23,42,0.35); overflow: hidden; border: 1px solid rgba(255,255,255,0.08); }
.sim-window-bar { padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; background: #1E293B; }
.sim-win-dots { display: flex; gap: 6px; }
.sim-win-dots span { width: 11px; height: 11px; border-radius: 50%; }
.sim-win-dots .r { background: #FF5F57; } .sim-win-dots .y { background: #FEBC2E; } .sim-win-dots .g { background: #28C840; }
.sim-win-title { font-size: 13px; color: #94A3B8; font-weight: 600; }
.sim-status-pill { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: #94A3B8; }
.sim-status-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: #64748B; transition: all 0.3s; }
.sim-status-pill .dot.connected { background: var(--success); box-shadow: 0 0 8px rgba(16,185,129,0.5); }
.sim-body { padding: 26px 24px; display: flex; flex-direction: column; align-items: center; gap: 22px; }
.sim-location { width: 100%; display: flex; flex-direction: column; gap: 8px; }
.sim-location label { font-size: 12px; color: #64748B; text-transform: uppercase; letter-spacing: 1px; }
.sim-node-select { width: 100%; padding: 12px 14px; border: 1px solid rgba(255,255,255,0.12); border-radius: 10px; font-size: 14px; color: #E2E8F0; background: #1E293B; cursor: pointer; outline: none; }
.sim-node-select:focus { border-color: var(--primary-light); }
.sim-connect-wrap { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.sim-connect-btn { width: 132px; height: 132px; border-radius: 50%; border: none; background: var(--gradient); color: #fff; font-size: 17px; font-weight: 700; cursor: pointer; transition: all 0.3s; box-shadow: 0 10px 35px rgba(14,165,233,0.5); display: flex; align-items: center; justify-content: center; position: relative; }
.sim-connect-btn:hover { transform: scale(1.05); }
.sim-connect-btn.connecting { background: linear-gradient(135deg, #F59E0B, #F97316); animation: pulse-ring 1.4s infinite; }
.sim-connect-btn.connected { background: linear-gradient(135deg, #10B981, #059669); animation: none; }
.sim-connect-btn .countdown { font-size: 34px; font-weight: 800; }
@keyframes pulse-ring { 0% { box-shadow: 0 0 0 0 rgba(245,158,11,0.55); } 70% { box-shadow: 0 0 0 22px rgba(245,158,11,0); } 100% { box-shadow: 0 0 0 0 rgba(245,158,11,0); } }
.sim-hint { font-size: 12px; color: #64748B; }
.sim-info { width: 100%; display: flex; flex-direction: column; gap: 8px; }
.sim-info-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: #1E293B; border-radius: 10px; font-size: 13px; }
.sim-info-row .label { color: #94A3B8; }
.sim-info-row .value { font-weight: 600; color: #E2E8F0; }
.sim-info-row .value.green { color: #34D399; }
.sim-meter { width: 100%; height: 6px; background: #1E293B; border-radius: 3px; overflow: hidden; }
.sim-meter-fill { height: 100%; width: 0; background: linear-gradient(90deg, #38BDF8, #34D399); border-radius: 3px; transition: width 0.6s; }

.section { padding: 90px 24px; }
.section-inner { max-width: 1280px; margin: 0 auto; }
.section-label { text-align: center; font-size: 14px; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
.section-title { text-align: center; font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; margin-bottom: 16px; color: var(--text); }
.section-desc { text-align: center; font-size: 18px; color: var(--text-secondary); max-width: 640px; margin: 0 auto 50px; }

.news-ticker { background: linear-gradient(135deg, rgba(14,165,233,0.05), rgba(16,185,129,0.05)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 12px 0; overflow: hidden; }
.news-ticker-inner { display: flex; gap: 48px; animation: ticker-scroll 28s linear infinite; white-space: nowrap; }
.news-ticker-item { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-secondary); }
.news-ticker-item .emoji { font-size: 16px; }
@keyframes ticker-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

.data-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.data-card { background: var(--card-bg); border-radius: var(--radius); padding: 30px 18px; border: 1px solid var(--border); text-align: center; box-shadow: var(--shadow); transition: all 0.3s; }
.data-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.data-card .d-icon { font-size: 30px; margin-bottom: 12px; }
.data-card .d-num { font-size: 40px; font-weight: 800; color: var(--primary); line-height: 1.1; }
.data-card .d-label { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }

.news-panel { display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px; align-items: stretch; }
.news-list { background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border); padding: 28px; }
.news-list h3 { font-size: 20px; font-weight: 700; margin-bottom: 18px; }
.news-list-item { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.news-list-item:last-child { border-bottom: none; }
.news-list-item .badge { flex-shrink: 0; background: rgba(14,165,233,0.1); color: var(--primary); font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 6px; height: fit-content; }
.news-list-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }
.news-list-item strong { color: var(--text); display: block; font-size: 15px; margin-bottom: 2px; }
.service-status { background: linear-gradient(135deg, #0EA5E9, #10B981); border-radius: var(--radius); padding: 28px; color: #fff; display: flex; flex-direction: column; justify-content: center; }
.service-status h3 { font-size: 20px; font-weight: 700; margin-bottom: 14px; }
.service-status p { font-size: 14px; opacity: 0.92; line-height: 1.7; margin-bottom: 10px; }
.service-status .status-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.18); border-radius: 999px; padding: 8px 16px; font-size: 13px; font-weight: 600; width: fit-content; margin-bottom: 14px; }
.service-status .status-tag .dot { width: 9px; height: 9px; border-radius: 50%; background: #34D399; box-shadow: 0 0 8px #34D399; }
.service-status a { color: #fff; font-weight: 700; font-size: 14px; }

.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--card-bg); border-radius: var(--radius); padding: 32px 28px; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all 0.3s; }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 28px; margin-bottom: 20px; transition: transform 0.3s; }
.feature-card:hover .feature-icon { transform: rotate(-6deg) scale(1.05); }
.feature-icon.blue { background: rgba(14,165,233,0.1); }
.feature-icon.purple { background: rgba(16,185,129,0.1); }
.feature-icon.green { background: rgba(16,185,129,0.1); }
.feature-icon.orange { background: rgba(245,158,11,0.1); }
.feature-icon.cyan { background: rgba(56,189,248,0.1); }
.feature-icon.pink { background: rgba(236,72,153,0.1); }
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; }
.feature-tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--primary); background: rgba(14,165,233,0.08); padding: 4px 12px; border-radius: 999px; }

.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.tech-card { background: var(--card-bg); border-radius: var(--radius); padding: 32px 28px; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all 0.3s; }
.tech-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.tech-card .t-num { font-size: 14px; font-weight: 800; color: var(--primary); background: rgba(14,165,233,0.08); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.tech-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.tech-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }
.tech-metric { margin-top: 16px; padding: 12px 16px; background: #F1F5F9; border-radius: 10px; font-size: 13px; color: var(--text-secondary); }
.tech-metric strong { color: var(--primary); font-size: 16px; }

.scenario-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.scenario-card { background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border); padding: 26px; box-shadow: var(--shadow); transition: all 0.3s; }
.scenario-card:hover { border-color: var(--primary-light); box-shadow: var(--shadow-lg); }
.scenario-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.scenario-head .s-icon { font-size: 34px; }
.scenario-head h3 { font-size: 18px; font-weight: 700; }
.scenario-head .pain { margin-left: auto; font-size: 12px; color: #DC2626; background: rgba(220,38,38,0.08); padding: 4px 10px; border-radius: 999px; }
.scenario-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; }
.scenario-sol { font-size: 14px; color: var(--text); font-weight: 500; }
.scenario-sol .arrow { color: var(--primary); font-weight: 700; margin-right: 6px; }
.scenario-effect { margin-top: 12px; font-size: 13px; color: var(--success); font-weight: 600; }

.node-area { display: flex; gap: 36px; align-items: stretch; flex-wrap: wrap; }
.node-map { flex: 1; min-width: 320px; background: linear-gradient(135deg, #0F172A, #1E293B); border-radius: var(--radius); padding: 36px; color: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; overflow: hidden; min-height: 380px; }
.node-map .globe { font-size: 90px; margin-bottom: 18px; }
.node-map .map-stats { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.node-map .map-stat { background: rgba(255,255,255,0.1); padding: 14px 22px; border-radius: 12px; text-align: center; }
.node-map .map-stat .num { font-size: 30px; font-weight: 800; }
.node-map .map-stat .lbl { font-size: 12px; opacity: 0.75; margin-top: 4px; }
.node-list { flex: 1; min-width: 300px; display: flex; flex-direction: column; gap: 14px; }
.node-row { background: var(--card-bg); border-radius: var(--radius); padding: 18px 20px; border: 1px solid var(--border); display: flex; align-items: center; gap: 14px; transition: all 0.3s; }
.node-row:hover { border-color: var(--primary-light); box-shadow: var(--shadow); }
.node-row .flag { font-size: 30px; }
.node-row .n-info { flex: 1; }
.node-row .n-info h4 { font-size: 16px; font-weight: 700; }
.node-row .n-info p { font-size: 13px; color: var(--text-secondary); }
.node-row .n-status { text-align: right; }
.node-row .n-status .lat { font-size: 18px; font-weight: 800; color: var(--primary); }
.node-row .n-status .st { font-size: 12px; color: var(--success); font-weight: 600; }

.lab-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lab-step { background: var(--card-bg); border-radius: var(--radius); padding: 32px 28px; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all 0.3s; position: relative; overflow: hidden; }
.lab-step:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.lab-step .step-time { font-size: 42px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.lab-step h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.lab-step p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }
.lab-step .step-bar { height: 6px; background: #E2E8F0; border-radius: 3px; margin: 16px 0 0; overflow: hidden; }
.lab-step .step-bar-fill { height: 100%; width: 0; background: var(--gradient); transition: width 1.2s; }
.lab-step:hover .step-bar-fill { width: var(--fill); }

.pulse-map { background: linear-gradient(135deg, #0F172A, #1E293B); border-radius: var(--radius); padding: 32px; color: #fff; display: flex; flex-direction: column; gap: 16px; }
.pulse-map h3 { font-size: 20px; font-weight: 700; color: #fff; }
.pulse-map .pulse-sub { font-size: 13px; color: #94A3B8; }
.pulse-node { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.08); font-size: 14px; }
.pulse-node:last-child { border-bottom: none; }
.pulse-node .pulse-name { display: flex; align-items: center; gap: 10px; }
.pulse-node .pulse-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--success); box-shadow: 0 0 10px var(--success); animation: pulse-dot 1.8s infinite; }
.pulse-node .pulse-lat { font-weight: 700; color: #67E8F9; }
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.story-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.story-card { background: var(--card-bg); border-radius: var(--radius); padding: 28px; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all 0.3s; display: flex; flex-direction: column; gap: 14px; }
.story-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.story-card .story-role { font-size: 12px; font-weight: 700; color: var(--primary); background: rgba(14,165,233,0.08); padding: 4px 12px; border-radius: 999px; width: fit-content; }
.story-card .story-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.story-card .story-author { font-size: 13px; font-weight: 600; color: var(--text); }
.story-card .story-meta { font-size: 12px; color: #94A3B8; }

.reviews-area { max-width: 1000px; margin: 0 auto; }
.review-stats { display: flex; justify-content: center; gap: 48px; margin-bottom: 40px; flex-wrap: wrap; }
.review-stat { text-align: center; }
.review-stat .r-num { font-size: 46px; font-weight: 800; color: var(--primary); }
.review-stat .r-lbl { font-size: 14px; color: var(--text-secondary); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card { background: var(--card-bg); border-radius: var(--radius); padding: 24px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.review-card .stars { color: #F59E0B; font-size: 16px; margin-bottom: 12px; }
.review-card .review-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 14px; }
.review-card .review-author { font-size: 13px; font-weight: 600; color: var(--text); }
.review-card .review-role { font-size: 12px; color: #94A3B8; }
.cert-badges { display: flex; justify-content: center; gap: 24px; margin-top: 40px; flex-wrap: wrap; }
.cert-badge { display: flex; align-items: center; gap: 10px; background: var(--card-bg); border: 1px solid var(--border); border-radius: 999px; padding: 12px 22px; font-size: 14px; font-weight: 600; color: var(--text-secondary); box-shadow: var(--shadow); }
.cert-badge .icon { font-size: 22px; }

.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pricing-card { background: var(--card-bg); border-radius: var(--radius); padding: 34px 26px; border: 2px solid var(--border); text-align: center; transition: all 0.3s; position: relative; }
.pricing-card:hover { box-shadow: var(--shadow-lg); }
.pricing-card.featured { border-color: var(--warning); box-shadow: 0 0 0 1px var(--warning), var(--shadow-lg); }
.pricing-card .badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, #F59E0B, #F97316); color: #fff; padding: 6px 18px; border-radius: 999px; font-size: 12px; font-weight: 700; white-space: nowrap; }
.pricing-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.pricing-card .p-sub { font-size: 13px; color: var(--text-secondary); margin-bottom: 14px; }
.pricing-card .price { font-size: 34px; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.pricing-card .price span { font-size: 15px; font-weight: 500; color: var(--text-secondary); }
.pricing-card .periods { display: flex; flex-direction: column; gap: 6px; margin: 16px 0; }
.pricing-card .period { font-size: 13px; color: var(--text-secondary); }
.pricing-features { list-style: none; text-align: left; margin: 16px 0 22px; }
.pricing-features li { padding: 6px 0; font-size: 14px; color: var(--text-secondary); }
.pricing-features li::before { content: '✓ '; color: var(--success); font-weight: 700; }
.pricing-features li.no::before { content: '✗ '; color: #F59E0B; }
.pricing-note { text-align: center; color: var(--text-secondary); font-size: 14px; margin-top: 26px; max-width: 720px; margin-left: auto; margin-right: auto; }

.faq-section { max-width: 860px; margin: 0 auto; }
.faq-category { margin-bottom: 30px; }
.faq-cat-title { font-size: 21px; font-weight: 700; margin-bottom: 16px; color: var(--text); padding-bottom: 10px; border-bottom: 2px solid var(--primary-light); }
.faq-item { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; }
.faq-q { padding: 18px 20px; font-size: 16px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: all 0.2s; }
.faq-q:hover { color: var(--primary); }
.faq-q .arrow { transition: transform 0.3s; font-size: 12px; }
.faq-q.open .arrow { transform: rotate(180deg); }
.faq-a { padding: 0 20px; max-height: 0; overflow: hidden; transition: all 0.3s; color: var(--text-secondary); font-size: 15px; line-height: 1.7; }
.faq-a.open { padding: 0 20px 20px; max-height: 800px; }
.faq-a .step { display: flex; gap: 10px; margin-bottom: 8px; }
.faq-a .step-num { font-weight: 700; color: var(--primary); min-width: 22px; }

.bottom-cta { background: var(--gradient); text-align: center; padding: 80px 24px; color: #fff; }
.bottom-cta h2 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; margin-bottom: 12px; }
.bottom-cta p { font-size: 18px; opacity: 0.92; margin-bottom: 28px; }
.bottom-cta .platforms { display: flex; justify-content: center; gap: 28px; margin-top: 24px; flex-wrap: wrap; }
.bottom-cta .platforms span { font-size: 15px; font-weight: 600; opacity: 0.95; }
.bottom-cta .trust-mini { margin-top: 16px; font-size: 13px; opacity: 0.85; }

.footer { background: #0F172A; color: #CBD5E1; padding: 60px 24px 30px; }
.footer-inner { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr; gap: 40px; }
.footer h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer a { color: #94A3B8; text-decoration: none; font-size: 14px; display: block; margin-bottom: 8px; transition: color 0.2s; }
.footer a:hover { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin: 12px 0; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; }
.footer-brand .footer-logo img { height: 32px; }
.footer-brand .footer-logo span { color: #fff; font-size: 20px; font-weight: 700; }
.footer-warning { margin-top: 18px; padding: 12px 16px; background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.3); border-radius: 8px; font-size: 13px; color: #FCD34D; line-height: 1.6; }
.footer-bottom { max-width: 1280px; margin: 40px auto 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: 13px; color: #64748B; }
.footer-bottom a { color: #94A3B8; display: inline; }
.friend-links { margin-top: 20px; padding: 16px 0; text-align: center; }
.friend-links a { display: inline !important; margin: 0 8px; }

.sticky-cta { position: fixed; bottom: 24px; right: 24px; z-index: 9999; }
.sticky-cta .btn-circle { width: 60px; height: 60px; border-radius: 50%; background: linear-gradient(135deg, #F59E0B, #F97316); color: #fff; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 24px; box-shadow: 0 6px 25px rgba(245,158,11,0.5); animation: float 2s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.sticky-cta .btn-circle:hover { transform: scale(1.1); }

@media (max-width: 1024px) {
  .features-grid, .tech-grid, .reviews-grid, .lab-steps, .story-grid { grid-template-columns: repeat(2, 1fr); }
  .data-wall { grid-template-columns: repeat(3, 1fr); }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .news-panel { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(255,255,255,0.97); backdrop-filter: blur(20px); padding: 20px; gap: 16px; border-bottom: 1px solid var(--border); }
  .nav.open { display: flex; }
  .hamburger { display: flex; }
  .nav-cta { display: none; }
  .features-grid, .tech-grid, .reviews-grid, .scenario-grid, .lab-steps, .story-grid { grid-template-columns: 1fr; }
  .data-wall { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}