:root{--bg-base: #050811;--bg-surface: #0b1120;--bg-elevated: #111a2e;--bg-glass: rgba(15, 23, 42, .78);--border-subtle: rgba(148, 163, 184, .14);--border-accent: rgba(16, 185, 129, .42);--primary: #10b981;--primary-hover: #059669;--primary-glow: rgba(16, 185, 129, .28);--cyan: #06b6d4;--amber: #f59e0b;--danger: #ef4444;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--radius-xl: 20px;--radius-lg: 16px;--radius-md: 12px;--radius-sm: 8px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;max-width:100%;overflow-x:hidden;scroll-behavior:smooth;font-family:Be Vietnam Pro,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-base);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background-image:radial-gradient(ellipse 80% 45% at 50% -10%,rgba(16,185,129,.16),transparent),radial-gradient(ellipse 60% 40% at 90% 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12px;border-radius:999px;margin-bottom:10px}.section-tag.danger{color:#f87171;background:#ef44441f;border-color:#ef444447}.section-title{font-size:clamp(1.3rem,3.8vw,1.9rem);font-weight:800;color:#fff;margin-bottom:8px;line-height:1.3;letter-spacing:-.015em}.section-desc{color:var(--text-muted);font-size:.9rem;line-height:1.55}.compact-features-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}@media(min-width:640px){.compact-features-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}}@media(min-width:980px){.compact-features-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}}.c-feature-card{display:flex;align-items:flex-start;gap:13px;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:15px 16px;min-width:0;transition:border-color .2s 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20px}.compare-row.header{display:grid;background:var(--bg-elevated);font-weight:800;font-size:.88rem;color:#fff}}.audience-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}@media(min-width:600px){.audience-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}}@media(min-width:960px){.audience-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}.audience-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:18px;min-width:0}.a-icon-box{width:38px;height:38px;border-radius:10px;background:#10b98124;color:#34d399;display:flex;align-items:center;justify-content:center;margin-bottom:10px}.audience-card h3{font-size:.94rem;font-weight:800;color:#34d399;margin-bottom:6px}.audience-card p{font-size:.84rem;color:var(--text-secondary);line-height:1.5}.checkout-wrap{max-width:620px;margin:0 auto;width:100%}.checkout-card{background:linear-gradient(180deg,#111a2e,#0b1120);border:1.5px solid 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rgba(148,163,184,.28);border-radius:10px;overflow:hidden}.step-btn{width:40px;height:40px;background:#ffffff0d;color:#fff;border:none;font-size:1.2rem;font-weight:700;cursor:pointer}.step-btn:hover{background:#10b98140}.qty-input{width:48px;height:40px;text-align:center;background:transparent;border:none;color:#fff;font-size:.98rem;font-weight:800}.preset-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.preset-chip{padding:8px 6px;border-radius:9px;border:1px solid var(--border-subtle);background:#ffffff08;color:var(--text-secondary);font-size:.78rem;font-weight:700;cursor:pointer;text-align:center;transition:border-color .15s ease,background .15s ease}.preset-chip.active{background:#10b98133;border-color:var(--primary);color:#34d399}.summary-box{background:#10b98114;border:1px solid rgba(16,185,129,.26);border-radius:12px;padding:12px 14px;margin-bottom:16px}.sum-row{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:.84rem;color:var(--text-secondary);margin-bottom:6px}.sum-row.total{margin-bottom:0;padding-top:8px;border-top:1px dashed rgba(148,163,184,.25);font-size:.98rem;font-weight:800;color:#fff}.sum-total-price{color:#34d399;font-size:1.16rem}.form-group{margin-bottom:12px}.form-label{display:block;font-size:.82rem;font-weight:700;color:var(--text-secondary);margin-bottom:6px}.req{color:#f87171}.form-input{width:100%;min-height:46px;padding:11px 13px;border-radius:11px;border:1px solid rgba(148,163,184,.26);background:var(--bg-base);color:#fff;font-size:.92rem;transition:border-color .15s ease,box-shadow .15s ease}.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #10b98126}.error-msg{background:#ef444424;border:1px solid rgba(239,68,68,.4);color:#fca5a5;padding:10px 13px;border-radius:10px;font-size:.84rem;margin-bottom:14px}.vietqr-box{text-align:center}.vq-status-pill{display:inline-flex;align-items:center;gap:8px;background:#f59e0b26;border:1px solid rgba(245,158,11,.4);color:#fbbf24;font-size:.8rem;font-weight:700;padding:6px 13px;border-radius:999px;margin-bottom:12px}.pulse-dot{width:8px;height:8px;border-radius:50%;background:#fbbf24;animation:pulse 1.2s infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(1.25)}}.qr-frame{background:#fff;padding:12px;border-radius:16px;display:inline-block;margin:0 auto 14px;box-shadow:0 12px 30px #0006}.qr-frame img{width:220px;height:220px}.qr-actions-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:14px}.btn-outline{background:#ffffff0f;border:1px solid var(--border-subtle);color:#e2e8f0;padding:9px 13px;border-radius:10px;font-size:.8rem;font-weight:700;cursor:pointer}.btn-outline:hover{background:#ffffff1f}.bank-details-card{background:var(--bg-base);border:1px solid var(--border-subtle);border-radius:12px;padding:12px 14px;text-align:left;margin-bottom:14px}.bd-row{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:7px 0;border-bottom:1px dashed rgba(148,163,184,.16);font-size:.84rem}.bd-row:last-child{border-bottom:none}.bd-label{color:var(--text-muted);flex-shrink:0}.bd-val{color:#fff;font-weight:700;display:flex;align-items:center;gap:6px;cursor:pointer;text-align:right;word-break:break-word}.bd-val.highlight{color:#34d399;font-size:.92rem}.copy-mini{background:#06b6d429;color:#22d3ee;font-size:.7rem;padding:2px 7px;border-radius:5px;flex-shrink:0}.bank-apps-box{margin-top:12px;text-align:left}.bank-apps-title{font-size:.8rem;font-weight:700;color:var(--text-secondary);margin-bottom:8px;text-align:center}.bank-apps-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.bank-app-btn{display:flex;align-items:center;justify-content:center;min-height:40px;padding:8px 4px;background:#1e293bd9;border:1px solid rgba(148,163,184,.22);border-radius:9px;color:#f8fafc;font-size:.76rem;font-weight:700;text-decoration:none;text-align:center;transition:border-color .15s ease,background .15s ease}.bank-app-btn:hover{border-color:var(--primary);background:#10b98126}.sticky-bottom{position:fixed;bottom:0;left:0;right:0;width:100%;background:#080d1af0;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid rgba(16,185,129,.35);padding:10px 14px calc(10px + env(safe-area-inset-bottom,0px));z-index:60}.sticky-inner{max-width:1120px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:10px}.sticky-price-col{display:flex;flex-direction:column;min-width:0}.sticky-price{font-size:1.12rem;font-weight:800;color:#34d399;line-height:1.2}.sticky-sub{font-size:.72rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sticky-btn{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#10b981,#059669);color:#fff;font-weight:800;font-size:.84rem;padding:11px 15px;border-radius:11px;border:none;cursor:pointer;text-decoration:none;white-space:nowrap;flex-shrink:0;box-shadow:0 4px 14px #10b98159}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}