/* 数字能量学智能体 — Phase 1 产品介绍 PPT */
/* Brand: #4A148C (深紫) + #7B2DC8 (中紫) + #FFD700 (金色) */

:root {
  --brand: #4A148C;
  --brand-light: #7B2DC8;
  --brand-lighter: #9C5CD8;
  --brand-bg: #F8F4FF;
  --accent-gold: #FFD700;
  --accent-gold-dark: #E6C200;
  --bg: #ffffff;
  --bg-soft: #f5f7fa;
  --surface: #ffffff;
  --surface-2: #f0f3f7;
  --border: rgba(74,20,140,.12);
  --text-1: #1a1a2e;
  --text-2: #425466;
  --text-3: #8898aa;
  --grad: linear-gradient(135deg, #4A148C, #7B2DC8);
  --grad-soft: linear-gradient(135deg, #F8F4FF, #EDE4FF);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 16px rgba(74,20,140,.10), 0 1px 4px rgba(74,20,140,.06);
  --shadow-lg: 0 12px 40px rgba(74,20,140,.14), 0 4px 12px rgba(74,20,140,.08);
  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Inter', 'Noto Sans SC', sans-serif;
  --ease: cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text-1);
  font-family:var(--font-sans);font-weight:400;line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

/* === SLIDE SYSTEM === */
.deck{position:relative;width:100vw;height:100vh;overflow:hidden;background:var(--bg)}
.slide{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:center;
  padding:72px 96px;
  box-sizing:border-box;
  opacity:0;pointer-events:none;
  transition:opacity .5s var(--ease), transform .5s var(--ease);
  transform:translateX(30px);
  overflow:hidden;
}
.slide.is-active{opacity:1;pointer-events:auto;transform:translateX(0);z-index:2}
.slide.is-prev{transform:translateX(-30px)}
.slide.center{justify-content:center;align-items:center}
.slide-inner{max-width:1100px;width:100%;margin:0 auto}

/* === TYPOGRAPHY === */
.kicker{font-size:14px;font-weight:600;color:var(--brand-light);letter-spacing:.08em;text-transform:uppercase;margin:0 0 8px}
h1,.h1{font-family:var(--font-display);font-size:64px;line-height:1.1;font-weight:800;letter-spacing:-.03em;margin:0 0 16px;color:var(--text-1)}
h2,.h2{font-family:var(--font-display);font-size:48px;line-height:1.15;font-weight:700;letter-spacing:-.02em;margin:0 0 12px}
h4,.h4{font-size:20px;line-height:1.3;font-weight:600;margin:0 0 6px}
.lede{font-size:20px;line-height:1.55;color:var(--text-2);font-weight:300}
.dim{color:var(--text-2);font-size:15px;line-height:1.5}
.dim2{color:var(--text-3)}
.tc{text-align:center}
.centered{margin-left:auto;margin-right:auto}
.mt-l{margin-top:32px}
.mt-m{margin-top:20px}
.mb-m{margin-bottom:12px}

/* === DECORATIVE === */
.deck-footer{position:absolute;bottom:24px;left:96px;right:96px;display:flex;justify-content:space-between;
  font-size:13px;color:var(--text-3);pointer-events:none;z-index:3}
.slide-number::before{content:attr(data-current)}
.slide-number:not([data-total])::after{content:""}
.slide-number[data-total]::after{content:" / " attr(data-total)}

/* === COVER SLIDE === */
.cover{justify-content:center;align-items:center;text-align:center;padding:0}
.cover-bg{
  position:absolute;inset:0;
  background:linear-gradient(135deg,#4A148C 0%,#7B2DC8 40%,#9C5CD8 70%,#B388DD 100%);
  z-index:0
}
.cover-content{position:relative;z-index:1;color:#fff;padding:40px}
.cover-content .kicker{color:var(--accent-gold)}
.cover-content .h1{color:#fff;font-size:72px}
.cover-content .lede{color:rgba(255,255,255,.9);font-size:24px;font-weight:500;margin-bottom:16px}
.cover-sub{color:rgba(255,255,255,.7);font-size:16px}
.cover-meta{display:flex;gap:24px;justify-content:center;margin-top:24px;flex-wrap:wrap}
.cover-meta span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  border-radius:20px;padding:6px 16px;font-size:14px;color:rgba(255,255,255,.85)}
.cover .deck-footer{color:rgba(255,255,255,.5)}

/* === GRID === */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:1fr 1fr 1fr}

/* === FEATURE CARDS === */
.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);text-align:center}
.feature-icon{font-size:36px;color:var(--brand);margin-bottom:12px}

/* === PROBLEM STACK === */
.problem-stack{display:flex;flex-direction:column;gap:16px;max-width:700px}
.problem-item{display:flex;gap:16px;align-items:flex-start;padding:16px 20px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.problem-num{font-size:24px;font-weight:700;color:var(--brand);line-height:1.3;min-width:36px}
.problem-item h4{margin:0 0 4px;font-size:16px}
.problem-item p{margin:0;font-size:14px}

/* === ROLE CARDS === */
.role-card{flex:1;padding:32px 24px;border-radius:var(--radius-lg);text-align:center;
  box-shadow:var(--shadow)}
.role-card.free{background:var(--surface);border:2px solid var(--border)}
.role-card.pro{background:linear-gradient(135deg,#F8F4FF,#EDE4FF);border:2px solid var(--brand)}
.role-badge{display:inline-block;background:var(--grad);color:#fff;padding:4px 16px;
  border-radius:20px;font-size:14px;font-weight:600;margin-bottom:8px}
.role-card.free .role-badge{background:var(--text-3)}
.role-price{font-size:36px;font-weight:800;color:var(--text-1);margin-bottom:16px}
.role-card ul{list-style:none;padding:0;margin:0;text-align:left;font-size:15px;line-height:2;color:var(--text-2)}
.role-card ul li.highlight{color:var(--brand);font-weight:600}
.arrow-col{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;flex:0 0 100px}
.arrow-icon{font-size:36px;color:var(--brand)}
.arrow-label{font-size:13px;color:var(--text-3);text-align:center}

/* === PHONE MOCKUPS === */
.page-layout{display:flex;gap:48px;align-items:flex-start}
.page-desc{flex:1}
.page-desc .lede{font-size:17px;margin-bottom:20px}
.page-features{list-style:none;padding:0;margin:0}
.page-features li{padding:10px 0;border-bottom:1px solid var(--border);font-size:15px;line-height:1.5;color:var(--text-2)}
.page-features li:last-child{border-bottom:none}
.page-features li strong{color:var(--text-1);font-weight:600}

.phone-mock{flex:0 0 320px}
.phone-frame{width:300px;margin:0 auto;background:#1a1a2e;border-radius:32px;padding:10px;
  box-shadow:0 8px 40px rgba(0,0,0,.3)}
.mock-status{text-align:center;font-size:12px;color:#fff;padding:4px 0 2px;font-weight:500}
.mock-header{text-align:center;font-size:14px;font-weight:600;color:#fff;padding:6px 0 10px;border-bottom:1px solid rgba(255,255,255,.1)}
.mock-body{background:#f5f5f5;min-height:440px;border-radius:0 0 22px 22px;padding:16px;font-size:13px;color:var(--text-2)}

/* Mock internal elements */
.mock-referrer{text-align:center;font-size:12px;color:#7B2DC8;padding:6px;background:#EDE4FF;border-radius:8px;margin-bottom:10px}
.mock-referrer strong{font-weight:700}
.mock-hero{text-align:center;font-size:32px;color:var(--brand);margin:8px 0 4px}
.mock-title{text-align:center;font-size:18px;font-weight:700;color:var(--text-1);margin-bottom:4px}
.mock-sub{text-align:center;font-size:12px;color:var(--text-3);margin-bottom:16px}
.mock-inputs{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}
.mock-field label{display:block;font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:4px}
.mock-input{background:#fff;border:1px solid #ddd;border-radius:8px;padding:8px 12px;font-size:13px;color:#999;min-height:36px}
.mock-field-row{display:flex;gap:8px}
.mock-field.sm{flex:1}
.mock-btn{background:var(--grad);color:#fff;text-align:center;padding:10px;border-radius:10px;font-size:15px;font-weight:600;margin-bottom:8px}
.mock-btn.sm{padding:8px;font-size:13px;border-radius:8px}
.mock-btn.outline{background:#fff;color:var(--brand);border:1px solid var(--brand);font-weight:500}
.mock-btn.primary{background:var(--grad);color:#fff}
.mock-quota{text-align:center;font-size:11px;color:var(--text-3)}
.mock-actions{display:flex;gap:8px;margin-top:10px}
.mock-actions.sec{justify-content:center;gap:16px;margin-top:8px;font-size:12px;color:var(--text-3)}
.mock-actions.sec span{cursor:default}

/* Triangle inside mock */
.mock-triangle{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 0}
.tri-row{display:flex;gap:4px}
.tri-cell{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#fff}
.t1{background:#4A148C;width:34px;height:34px;font-size:15px}
.t2{background:#7B2DC8}
.t3{background:#9C5CD8}
.t4{background:#B388DD;color:var(--text-1)}
.t5{background:#D1C4E9;color:var(--text-1)}

/* AI Reading mock */
.mock-section{border:1px solid #ddd;border-radius:8px;margin-bottom:6px;overflow:hidden}
.mock-section-header{padding:8px 10px;background:#fff;font-size:12px;font-weight:600;color:var(--text-1);display:flex;justify-content:space-between}
.mock-section-body{padding:8px 10px;background:#FAFAFA}
.mock-digit{display:inline-block;width:24px;height:24px;border-radius:50%;background:var(--brand);color:#fff;text-align:center;line-height:24px;font-size:12px;font-weight:700;margin-bottom:6px}
.mock-text{font-size:11px;line-height:1.5;color:var(--text-2)}
.mock-lock{color:#ccc;font-size:11px}
.mock-section.locked .mock-section-header{color:#bbb}
.mock-upgrade{text-align:center;font-size:12px;font-weight:600;color:var(--brand);padding:10px;background:#EDE4FF;border-radius:8px;margin-top:8px}

/* Price area mock */
.mock-price-area{text-align:center;padding:12px 0;border-bottom:1px solid #eee;margin-bottom:12px}
.mock-price{font-size:36px;font-weight:800;color:var(--brand);line-height:1}
.mock-per{font-size:12px;color:var(--text-3)}
.mock-benefits{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.mock-benefit{font-size:12px;padding:4px 8px;background:#F8F4FF;border-radius:6px}
.mock-compare{font-size:11px;margin-bottom:12px}
.comp-row{display:flex;justify-content:space-between;padding:4px 6px;border-bottom:1px solid #eee}
.comp-row.head{font-weight:600;background:#f0f0f0;border-radius:4px 4px 0 0}
.comp-row span{flex:1;text-align:center}
.comp-row span:first-child{text-align:left;flex:1.5}

/* Profile mock */
.mock-profile-card{display:flex;gap:10px;align-items:center;padding:10px;background:#fff;border-radius:8px;margin-bottom:8px}
.mock-avatar{width:36px;height:36px;border-radius:50%;background:var(--grad)}
.mock-badge{display:inline-block;font-size:10px;background:#EDE4FF;color:var(--brand);padding:1px 8px;border-radius:10px;font-weight:600;margin-top:2px}
.mock-distro-entry{padding:10px;background:linear-gradient(135deg,#F8F4FF,#EDE4FF);border-radius:8px;margin-bottom:8px;cursor:pointer}
.distro-title{font-size:13px;font-weight:600;color:var(--brand);margin-bottom:4px}
.distro-stats{display:flex;gap:12px;font-size:11px;color:var(--text-2)}
.mock-history{display:flex;flex-direction:column;gap:4px;margin-bottom:8px}
.mock-hist-item{padding:6px 10px;background:#fff;border-radius:6px;font-size:12px}
.mock-actions-list{display:flex;flex-direction:column;gap:2px}
.mock-actions-list div{padding:8px 10px;font-size:13px;border-bottom:1px solid #eee;display:flex;justify-content:space-between}

/* === DISTRIBUTION FLOW === */
.distro-flow{display:flex;gap:24px;justify-content:center;flex-wrap:wrap}
.distro-level{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px 24px;box-shadow:var(--shadow);min-width:280px;flex:1;max-width:400px}
.distro-user{font-weight:700;color:var(--brand);font-size:16px;margin-bottom:4px}
.distro-arrow{color:var(--text-3);font-size:13px;margin:4px 0}
.distro-action{font-size:14px;color:var(--text-2);margin:4px 0}
.distro-commission{font-size:14px;color:var(--good);margin-top:8px;padding-top:8px;border-top:1px solid var(--border)}
.distro-commission strong{font-size:18px}
.distro-rules{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.distro-rules span{background:var(--brand-bg);border:1px solid var(--border);border-radius:20px;
  padding:6px 14px;font-size:13px;color:var(--text-2)}

/* === PRICING BREAKDOWN === */
.pricing-breakdown{display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap}
.pb-item{text-align:center;padding:24px 32px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);box-shadow:var(--shadow);min-width:160px}
.pb-item:first-child{border-color:var(--brand);background:var(--brand-bg)}
.pb-value{font-size:32px;font-weight:800;color:var(--text-1)}
.pb-item:first-child .pb-value{color:var(--brand)}
.pb-label{font-size:13px;color:var(--text-3);margin-top:4px}
.pb-plus{font-size:28px;color:var(--text-3);font-weight:300}
.pricing-meta{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.meta-item{padding:8px 16px;background:var(--surface-2);border-radius:8px;font-size:14px;color:var(--text-2)}

/* === ROADMAP === */
.roadmap{display:flex;gap:12px;align-items:flex-start;justify-content:center;flex-wrap:wrap}
.rm-phase{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px 24px;box-shadow:var(--shadow);flex:1;min-width:180px;max-width:240px;text-align:center}
.rm-week{display:inline-block;background:var(--grad);color:#fff;font-size:12px;font-weight:600;
  padding:3px 12px;border-radius:12px;margin-bottom:8px}
.rm-title{font-size:18px;font-weight:700;color:var(--text-1);margin-bottom:6px}
.rm-items{font-size:13px;color:var(--text-2);line-height:1.5}
.rm-connector{font-size:24px;color:var(--brand-lighter);padding-top:40px;font-weight:300}

/* === CTA GRID === */
.cta-grid{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.cta-card{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);
  border-radius:var(--radius);padding:24px 20px;backdrop-filter:blur(8px);min-width:180px;max-width:220px}
.cta-icon{font-size:32px;margin-bottom:8px}
.cta-card div{font-size:14px;color:rgba(255,255,255,.85);line-height:1.6}

/* === PAGE-SLIDE SHARED === */
.page-slide{padding:48px 64px}
.page-slide .h2{font-size:36px}

/* === RESPONSIVE === */
@media(max-width:900px){
  .slide{padding:40px 24px}
  .h1{font-size:42px}
  .h2{font-size:32px}
  .page-layout{flex-direction:column;align-items:center}
  .phone-mock{flex:0 0 auto;order:-1;margin-bottom:16px}
  .roadmap{flex-direction:column;align-items:center}
  .rm-connector{transform:rotate(90deg);padding:4px}
}