/* ─── 衍枢 首页样式 ─── */

/* Hero */
.ys-hero{position:relative;min-height:88vh;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#050505;margin:-1.5rem -1rem 0;padding:1rem;text-align:center}
.ys-hero-bg{position:absolute;inset:0;background:linear-gradient(180deg,#050505 0%,#0a0a0a 40%,#050505 100%)}
.ys-hero-content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;max-width:680px}
.ys-hero-title{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:5rem;font-weight:bold;color:#c8a46c;letter-spacing:12px;margin-bottom:.5rem}
.ys-hero-char{display:inline-block}
.ys-hero-sub{font-size:.75rem;letter-spacing:6px;color:rgba(200,164,108,0.5);opacity:.5;margin-bottom:1rem}
.ys-hero-text{margin:1.5rem 0 0}
.ys-hero-slogan{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:1.4rem;color:#d4c4a0;line-height:1.8}
.ys-divider{width:8rem;height:1px;margin:.8rem auto;background:linear-gradient(90deg,transparent,#c8a46c,transparent)}
.ys-hero-desc{font-size:.88rem;color:#9a8a70;line-height:1.9;margin-top:.5rem}
.ys-hero-actions{display:flex;gap:12px;margin-top:2.5rem;flex-wrap:wrap;justify-content:center}
.ys-btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 32px;border-radius:12px;font-size:.92rem;font-weight:500;transition:all .2s;text-decoration:none;cursor:pointer;font-family:inherit}
.ys-btn--primary{background:#d4c4a0;color:#0a0e0e;box-shadow:0 4px 20px rgba(200,164,108,.25)}
.ys-btn--primary:hover{background:#c8b490;box-shadow:0 6px 28px rgba(200,164,108,.35);transform:translateY(-1px)}
.ys-btn--ghost{border:1px solid rgba(212,196,160,.25);color:#c8b898}
.ys-btn--ghost:hover{border-color:#c8a46c;background:rgba(200,164,108,.08);color:#d4c4a0}

/* Ticker */
.ys-ticker{border-top:1px solid rgba(200,164,108,.06);border-bottom:1px solid rgba(200,164,108,.06);padding:.9rem 0;overflow:hidden;background:#050505;margin:0 -1rem}
.ys-ticker-track{display:flex;overflow:hidden}
.ys-ticker-group{display:flex;animation:ys-scroll 80s linear infinite;white-space:nowrap}
.ys-ticker-item{font-size:1.1rem;color:rgba(200,164,108,0.55);display:inline-flex;align-items:center;gap:6px;margin:0 8px}
.ys-ticker-item em{font-style:normal;color:#b8a880}
.ys-ticker-dot{color:rgba(200,164,108,0.3);font-weight:bold}
@keyframes ys-scroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* Stats */
.ys-stats{background:#050505;padding:2.5rem 1rem;margin:0}
.ys-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;overflow:hidden;border-radius:16px;border:1px solid rgba(212,196,160,.08)}
.ys-stat-card{display:flex;flex-direction:column;align-items:center;gap:6px;padding:1.8rem .5rem;background:#111;text-align:center}
.ys-stat-num{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:2.4rem;font-weight:bold;color:#c8a46c}
.ys-stat-label{font-size:.72rem;letter-spacing:2px;color:#8a7a60;text-transform:uppercase}

/* Features */
.ys-features{padding:3.5rem 0 2rem}
.ys-section-title{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:1.5rem;font-weight:bold;text-align:center;color:#d4c4a0}
.ys-section-desc{font-size:.85rem;text-align:center;color:#8a7a60;margin-bottom:1.5rem}
.ys-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:1000px;margin:0 auto}
.ys-feature-card{background:linear-gradient(135deg,#111,#111818);border:1px solid rgba(212,196,160,.08);border-radius:16px;padding:2rem 1.5rem;text-align:center;transition:all .25s;display:flex;flex-direction:column;align-items:center;gap:10px;text-decoration:none}
.ys-feature-card:hover{border-color:rgba(200,164,108,.2);transform:translateY(-3px);box-shadow:0 8px 30px rgba(0,0,0,.3)}
.ys-feature-icon{font-size:1.8rem;line-height:1}
.ys-feature-img{width:90px;height:90px;object-fit:contain;margin-top:4px}
.ys-feature-card h3{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:1.1rem;color:#d4c4a0;font-weight:600}
.ys-feature-card p{font-size:.82rem;color:#9a8a70;line-height:1.7;flex:1}
.ys-feature-link{font-size:.78rem;color:#c8a46c;opacity:.7;margin-top:auto}

/* Books */
.ys-books{padding:2.5rem 0}
.ys-book-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;max-width:900px;margin:0 auto}
.ys-book-cat{background:rgba(18,18,18,.6);border:1px solid rgba(212,196,160,.06);border-radius:12px;padding:1.2rem 1.5rem}
.ys-book-cat h4{font-size:.95rem;color:#c8a46c;margin-bottom:.5rem;font-weight:600;font-family:"PingFang SC","Microsoft YaHei",sans-serif}
.ys-book-item{display:block;padding:5px 0;font-size:.85rem;color:#9a8a70;text-decoration:none;border-bottom:1px solid rgba(212,196,160,.04)}
.ys-book-item:last-child{border:none}
.ys-book-item:hover{color:#d4c4a0}

/* Pricing */
.ys-pricing{padding:2.5rem 0 1rem;text-align:center}
.ys-pricing-cta{display:flex;flex-direction:column;align-items:center;gap:10px}
.ys-pricing-note{font-size:.78rem;color:#7a6a50}

/* Responsive */
@media(max-width:768px){
  .ys-hero-title{font-size:3.5rem}
  .ys-hero-slogan{font-size:1.1rem}
  .ys-stats-grid{grid-template-columns:repeat(2,1fr)}
  .ys-feature-grid{grid-template-columns:1fr}
  .ys-book-grid{grid-template-columns:1fr}
  .ys-stat-num{font-size:1.8rem}
}

/* ─── 移动端顶栏：两行布局 + 安全区适配 ─── */
@media(max-width:768px){
  .hnav{height:auto;padding-top:env(safe-area-inset-top,0px);padding-bottom:2px}
  .hnav-inner{flex-direction:column;align-items:stretch;gap:2px;padding:.4rem .8rem .2rem}
  .hnav-brand{font-size:1rem;letter-spacing:2px;text-align:center;padding:2px 0}
  .hnav-links{overflow-x:auto;-webkit-overflow-scrolling:touch;justify-content:flex-start;
    -ms-overflow-style:none;scrollbar-width:none;padding-bottom:2px;
    padding-left:.4rem;padding-right:.4rem;box-sizing:border-box}
  .hnav-links::-webkit-scrollbar{display:none}
  .hnav-links a{padding:4px 8px;font-size:.75rem;white-space:nowrap;flex:0 0 auto}
  .main{padding-top:calc(env(safe-area-inset-top,0px) + 86px)}
}

/* Hnav */
.hnav{position:fixed;top:0;left:0;right:0;z-index:100;height:56px;background:rgba(5,5,5,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(200,164,108,.06)}
.hnav-inner{max-width:1100px;margin:0 auto;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 1.2rem}
.hnav-brand{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:1.2rem;font-weight:bold;color:#c8a46c;text-decoration:none;letter-spacing:4px}
.hnav-links{display:flex;gap:2px;align-items:center}
.hnav-links a{color:#8a7a60;padding:6px 12px;font-size:.8rem;border-radius:6px;text-decoration:none;transition:all .15s}
.hnav-links a:hover{color:#d4c4a0;background:rgba(200,164,108,.08)}
.main{padding-top:56px;background:#050505;color:#b8a880;min-height:calc(100vh - 56px)}
.ys-flash{max-width:800px;margin:0 auto 1rem;padding-top:1rem}
.qfooter{background:#050505;border-top:1px solid rgba(200,164,108,.06);padding:2rem 1rem;text-align:center;color:#6a5a40;font-size:.75rem}
.qfooter-sub{color:#5a4a30;margin-top:4px;font-size:.7rem}

/* ─── Hero 大字逐字入场（墨迹落纸） ─── */
@keyframes char-in{from{opacity:0;transform:translateY(18px);filter:blur(4px)}to{opacity:1;transform:none;filter:none}}
.ys-hero-char{animation:char-in .7s cubic-bezier(.22,1,.36,1) both}
.ys-hero-char:nth-child(1){animation-delay:.05s}
.ys-hero-char:nth-child(2){animation-delay:.15s}
.ys-hero-char:nth-child(3){animation-delay:.25s}
.ys-hero-char:nth-child(4){animation-delay:.35s}