._sec-hero_1asad_1{padding:140px 0 60px;text-align:center;border-bottom:1px solid var(--border)}._back-link_1asad_5{display:inline-block;font-size:14px;font-weight:500;color:var(--accent-light);margin-bottom:24px;transition:color var(--transition-fast)}._back-link_1asad_5:hover{color:var(--text-primary)}._sec-hero_1asad_1 h1{font-size:clamp(32px,5vw,54px);font-weight:700;letter-spacing:-.035em;margin-bottom:16px}._sec-subtitle_1asad_15{font-size:18px;color:var(--text-secondary);max-width:560px;margin:0 auto;line-height:1.65}._sec-content_1asad_17{padding:88px 0}._section-header_1asad_18{text-align:center;max-width:680px;margin:0 auto 56px}._section-title_1asad_19{font-size:clamp(28px,3.6vw,40px);font-weight:700;letter-spacing:-.03em;line-height:1.12;margin-bottom:12px}._section-eyebrow_1asad_23{font-size:15px;font-weight:400;color:var(--text-muted);line-height:1.6;margin-bottom:12px}._section-desc_1asad_27{font-size:16px;color:var(--text-secondary);line-height:1.7}._flow-diagram_1asad_29{display:flex;align-items:center;justify-content:center;gap:0;margin-bottom:64px;flex-wrap:nowrap}._flow-node_1asad_30{flex:0 0 auto;width:200px;padding:24px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);text-align:center;transition:all var(--transition-base);cursor:default}._flow-node_1asad_30._active_1asad_36{border-color:var(--border-glow);box-shadow:var(--shadow-glow);transform:translateY(-4px)}._node-icon_1asad_37{width:48px;height:48px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;color:var(--accent-light);border-radius:var(--radius-md);background:var(--accent-glow)}._node-label_1asad_42{font-size:14px;font-weight:700;margin-bottom:8px}._node-detail_1asad_43{font-size:12px;color:var(--text-muted);line-height:1.6}._key-badge_1asad_44,._pub-badge_1asad_44,._cipher-badge_1asad_44,._db-badge_1asad_44{display:inline-block;padding:1px 6px;border-radius:4px;font-size:10px;font-weight:600;font-family:var(--font-mono)}._key-badge_1asad_44{background:#fbbf2426;color:#fbbf24}._pub-badge_1asad_44{background:#34d39926;color:#34d399}._cipher-badge_1asad_44{background:#3b82f626;color:var(--accent-light)}._db-badge_1asad_44{background:#fbbf2426;color:#fbbf24}._flow-arrow_1asad_53{display:flex;align-items:center;position:relative;width:80px;flex-shrink:0}._arrow-line_1asad_54{flex:1;height:1px;background:var(--border);transition:background var(--transition-base)}._flow-arrow_1asad_53._lit_1asad_55 ._arrow-line_1asad_54{background:var(--accent)}._arrow-label_1asad_56{position:absolute;top:-16px;left:50%;transform:translate(-50%);font-size:10px;color:var(--text-muted);white-space:nowrap;font-family:var(--font-mono)}._arrow-head_1asad_60{width:0;height:0;border-top:5px solid transparent;border-bottom:5px solid transparent;border-left:8px solid var(--border);transition:border-color var(--transition-base)}._flow-arrow_1asad_53._lit_1asad_55 ._arrow-head_1asad_60{border-left-color:var(--accent)}._flow-steps_1asad_67{display:flex;flex-direction:column;gap:16px;max-width:720px;margin:0 auto 64px}._flow-step_1asad_67{display:flex;gap:20px;padding:20px 24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:all var(--transition-base);cursor:default}._flow-step_1asad_67._active_1asad_36{border-color:var(--border-glow);background:var(--bg-card-hover)}._step-num_1asad_74{font-size:22px;font-weight:600;color:var(--accent-light);font-family:var(--font-mono);line-height:1;flex-shrink:0;opacity:.55;transition:opacity var(--transition-base)}._flow-step_1asad_67._active_1asad_36 ._step-num_1asad_74{opacity:1}._step-body_1asad_80 h4{font-size:16px;font-weight:700;margin-bottom:4px}._step-body_1asad_80 p{font-size:14px;color:var(--text-secondary);line-height:1.6}._invariant-grid_1asad_83{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:80px}._invariant-card_1asad_84{padding:28px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:all var(--transition-base)}._invariant-card_1asad_84:hover{border-color:var(--border-glow)}._invariant-card_1asad_84._invariant-main_1asad_89{grid-column:1 / -1;border-color:#3b82f633;background:linear-gradient(135deg,rgba(59,130,246,.06),var(--bg-card));padding:32px}._invariant-icon_1asad_94{color:var(--accent-light);margin-bottom:16px}._invariant-card_1asad_84 h3{font-size:16px;font-weight:700;margin-bottom:8px}._invariant-main_1asad_89 h3{font-size:21px;letter-spacing:-.02em}._invariant-card_1asad_84 p{font-size:14px;color:var(--text-secondary);line-height:1.7}._invariant-card_1asad_84 p._sync-reassure_1asad_98{margin-top:12px;color:var(--accent-light);font-weight:500}._invariant-lead_1asad_105{font-size:15px;color:var(--text-secondary);line-height:1.6;margin-bottom:4px}._invariant-list_1asad_106{list-style:none;display:grid;gap:14px;margin:22px 0 0;padding:0}._invariant-item_1asad_107{display:grid;grid-template-columns:168px 1fr;gap:18px;align-items:baseline}._invariant-badge_1asad_108{justify-self:start;display:inline-block;padding:5px 11px;border-radius:6px;font-size:12px;font-weight:600;font-family:var(--font-mono);white-space:nowrap}._badge-a_1asad_112{background:#34d39926;color:#34d399}._badge-b_1asad_113{background:#3b82f626;color:var(--accent-light)}._badge-c_1asad_114{background:#a78bfa26;color:#a78bfa}._invariant-item-desc_1asad_115{font-size:14px;color:var(--text-secondary);line-height:1.6}._invariant-never_1asad_116{display:flex;align-items:center;gap:10px;margin-top:24px;padding-top:18px;border-top:1px solid var(--border);font-size:14px;color:var(--text-primary);line-height:1.55}._invariant-never_1asad_116 svg{flex-shrink:0;color:#f87171}._invariant-never_1asad_116 strong{font-weight:700;color:#f87171}._s2s-section_1asad_124{border-top:1px solid var(--border);padding-top:80px}._s2s-card_1asad_125{max-width:640px;margin:0 auto;padding:32px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);text-align:center}._s2s-card_1asad_125 p{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:12px}._s2s-note_1asad_131{font-size:12px;color:var(--text-muted);font-style:italic}._s2s-badges_1asad_132{display:flex;gap:8px;justify-content:center;margin-top:16px}._s2s-badge_1asad_132{padding:4px 10px;border-radius:4px;font-size:11px;font-weight:600;font-family:var(--font-mono);background:#3b82f61a;color:var(--accent-light);border:1px solid rgba(59,130,246,.2)}@media(max-width:768px){._flow-diagram_1asad_29{flex-direction:column;gap:12px}._flow-arrow_1asad_53{width:auto;flex-direction:column;transform:rotate(90deg);margin:4px 0}._arrow-label_1asad_56{top:-14px}._invariant-grid_1asad_83{grid-template-columns:1fr}._invariant-item_1asad_107{grid-template-columns:1fr;gap:6px}._sec-hero_1asad_1{padding:120px 0 40px}._sec-content_1asad_17{padding:60px 0}}