/* ============================================================
   AI幼儿绘本工厂 · style.css
   视觉风格：糖果缤纷 —— 高明度多彩 / 圆润形状 / 圆点装饰 / 轻快动效
   ============================================================ */

:root{
  --c-primary:#d6160a;
  --c-secondary:#26e331;
  --c-accent:#069af9;
  --c-bg:#fbf9f8;
  --c-card:#ffffff;
  --c-text:#2c1c1b;
  --c-muted:#7a5e5c;
  --c-border:#e6dcdb;
  --c-red-soft:#ffe9e6;
  --c-green-soft:#e0f9e2;
  --c-blue-soft:#e3f3ff;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 10px 30px rgba(44,28,27,.07);
  --shadow-lg:0 18px 50px rgba(44,28,27,.12);
  --font-head:'Quicksand','PingFang SC',system-ui,sans-serif;
  --font-body:system-ui,-apple-system,'PingFang SC','Microsoft YaHei','Segoe UI',sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* 圆点装饰背景 */
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 22px 26px, rgba(214,22,10,.045) 4px, transparent 5px),
    radial-gradient(circle at 64px 92px, rgba(6,154,249,.05) 4px, transparent 5px),
    radial-gradient(circle at 110px 44px, rgba(38,227,49,.05) 4px, transparent 5px),
    radial-gradient(circle at 150px 120px, rgba(214,22,10,.035) 3px, transparent 4px);
  background-size:180px 170px, 210px 200px, 240px 220px, 260px 240px;
}

h1,h2,h3,.brand-name{font-family:var(--font-head);line-height:1.25}
button{font-family:var(--font-body);cursor:pointer}
a{color:inherit}

/* ---------------- 按钮 ---------------- */
.btn{
  border:none;
  border-radius:16px;
  padding:11px 20px;
  font-size:15px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, filter .18s ease;
  white-space:nowrap;
}
.btn:active{transform:scale(.94)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(214,22,10,.28)}
.btn-primary:hover{transform:translateY(-2px) rotate(-.6deg);box-shadow:0 12px 26px rgba(214,22,10,.34)}
.btn-secondary{background:var(--c-secondary);color:#0b3d0f;box-shadow:0 8px 20px rgba(38,227,49,.3)}
.btn-secondary:hover{transform:translateY(-2px) rotate(.6deg)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(6,154,249,.3)}
.btn-accent:hover{transform:translateY(-2px) rotate(-.6deg)}
.btn-green{background:var(--c-green-soft);color:#0b5a12;border:2px solid rgba(38,227,49,.35)}
.btn-green:hover{background:var(--c-secondary);color:#0b3d0f}
.btn-ghost{background:var(--c-card);color:var(--c-text);border:2px solid var(--c-border)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn-big{padding:15px 26px;font-size:16px;border-radius:20px}
.btn-block{width:100%}
.btn-sm{padding:8px 14px;font-size:13px;border-radius:12px}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none!important}

/* ---------------- 顶部导航 ---------------- */
.topbar{
  position:sticky;top:14px;z-index:50;
  margin:0 auto;max-width:1180px;width:calc(100% - 28px);
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border:2px solid var(--c-border);
  border-radius:22px;
  padding:10px 16px;
  box-shadow:var(--shadow);
}
.brand{display:flex;align-items:center;gap:9px;background:none;border:none;font-size:17px;font-weight:700}
.brand-mark{font-size:26px;line-height:1;filter:drop-shadow(0 3px 6px rgba(214,22,10,.25));animation:wiggle 5s ease-in-out infinite}
@keyframes wiggle{0%,100%{transform:rotate(0)}10%{transform:rotate(-8deg)}20%{transform:rotate(7deg)}30%{transform:rotate(-4deg)}40%{transform:rotate(0)}}
.brand-name{font-size:17px;color:var(--c-text);letter-spacing:.3px}
.nav{display:flex;gap:4px;margin-left:8px;flex:1}
.nav-link{
  background:none;border:none;padding:9px 15px;border-radius:14px;
  font-size:14.5px;font-weight:600;color:var(--c-muted);
  transition:all .18s ease;
}
.nav-link:hover{background:var(--c-red-soft);color:var(--c-primary);transform:translateY(-1px)}
.nav-link.active{background:var(--c-primary);color:#fff;box-shadow:0 6px 14px rgba(214,22,10,.25)}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.burger{display:none;background:none;border:none;flex-direction:column;gap:5px;padding:8px}
.burger span{width:24px;height:3px;background:var(--c-text);border-radius:3px;transition:.25s}

/* ---------------- 页面容器 ---------------- */
main{max-width:1180px;margin:0 auto;padding:26px 14px 70px}
.view{display:none;animation:fadeUp .45s ease}
.view.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.page-head{text-align:center;margin:18px 0 26px}
.page-head h1{font-size:34px;margin-bottom:6px}
.page-head p{color:var(--c-muted)}

/* ---------------- 卡片 ---------------- */
.card{
  background:var(--c-card);
  border:2px solid var(--c-border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

/* ---------------- 首页 Hero ---------------- */
.hero{
  display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center;
  padding:44px 8px 30px;
}
.hero .pill{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-red-soft);color:var(--c-primary);
  border:2px dashed rgba(214,22,10,.35);
  padding:7px 14px;border-radius:999px;font-size:13.5px;font-weight:700;
  animation:floaty 3.4s ease-in-out infinite;
}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.hero h1{font-size:52px;margin:20px 0 14px;letter-spacing:.5px}
.grad-text{
  background:linear-gradient(100deg,var(--c-primary),var(--c-accent),var(--c-secondary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--c-muted);font-size:17px;margin-bottom:24px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.hero-stats{display:flex;gap:26px;flex-wrap:wrap}
.stat b{display:block;font-family:var(--font-head);font-size:24px;color:var(--c-primary)}
.stat span{font-size:13px;color:var(--c-muted)}

/* Hero 插画 */
.hero-art{position:relative;min-height:380px}
.blob{position:absolute;border-radius:50%;opacity:.5;animation:floaty 6s ease-in-out infinite}
.blob-a{width:190px;height:190px;background:var(--c-red-soft);top:6px;right:40px}
.blob-b{width:150px;height:150px;background:var(--c-blue-soft);bottom:20px;left:10px;animation-delay:.8s}
.blob-c{width:110px;height:110px;background:var(--c-green-soft);top:60%;left:52%;animation-delay:1.6s}
.mockbook{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-3deg);
  width:250px;z-index:2;
  transition:transform .35s ease;
}
.mockbook:hover{transform:translate(-50%,-50%) rotate(-3deg) scale(1.04)}
.mockbook-cover{
  background:#fff;border-radius:14px 26px 26px 14px;
  padding:20px 16px 16px;
  border:3px solid var(--c-border);
  box-shadow:10px 14px 30px rgba(44,28,27,.16), -4px 0 0 -1px #f0e6e4;
  aspect-ratio:4/5;
  position:relative;overflow:hidden;
}
.mockbook-cover::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:10px;
  background:repeating-linear-gradient(90deg,var(--c-primary),var(--c-primary) 2px,transparent 2px,transparent 5px);
  opacity:.85;border-radius:8px 0 0 8px;
}
.mk-sun{position:absolute;top:12px;right:14px;font-size:30px}
.mk-cloud{position:absolute;font-size:22px}
.mk-c1{top:26px;left:26px}
.mk-c2{top:52px;left:60px;font-size:16px;opacity:.8}
.mk-hill{position:absolute;border-radius:50% 50% 0 0;bottom:-20px}
.mk-h1{width:150px;height:80px;background:var(--c-green-soft);left:-20px;border:2px solid rgba(38,227,49,.3)}
.mk-h2{width:170px;height:95px;background:var(--c-blue-soft);right:-30px;bottom:-26px}
.mk-star{position:absolute;font-size:16px;animation:twinkle 2.2s ease-in-out infinite}
.mk-s1{top:70px;right:26px}
.mk-s2{top:104px;right:50px;animation-delay:.7s}
@keyframes twinkle{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
.mk-title{
  position:absolute;bottom:58px;left:20px;right:8px;
  font-family:var(--font-head);font-weight:700;font-size:21px;line-height:1.25;z-index:2;
}
.mk-title span{color:var(--c-accent)}
.mk-char{position:absolute;bottom:6px;left:20px;font-size:44px;z-index:2}
.mk-ribbon{
  position:absolute;top:-12px;right:-16px;
  background:var(--c-primary);color:#fff;font-size:11.5px;font-weight:700;
  padding:6px 10px;border-radius:10px;transform:rotate(6deg);
  box-shadow:0 6px 14px rgba(214,22,10,.3);white-space:nowrap;
}
.float-chip{
  position:absolute;z-index:3;background:#fff;border:2px solid var(--c-border);
  border-radius:14px;padding:8px 13px;font-size:13px;font-weight:700;
  box-shadow:var(--shadow);animation:floaty 4.5s ease-in-out infinite;
}
.fc-1{top:14px;left:6px;animation-delay:.4s}
.fc-2{top:44%;right:0;animation-delay:1.1s}
.fc-3{bottom:2px;left:28px;animation-delay:1.8s}
.fc-4{bottom:24%;right:8px;animation-delay:2.4s;display:none}
@media(min-width:1100px){.fc-4{display:block}}

/* ---------------- 通用 section ---------------- */
.section{padding:34px 6px;scroll-margin-top:80px}
.sec-head{text-align:center;margin-bottom:26px}
.sec-tag{
  display:inline-block;background:var(--c-blue-soft);color:var(--c-accent);
  font-family:var(--font-head);font-weight:700;font-size:12px;letter-spacing:2px;
  padding:5px 12px;border-radius:999px;margin-bottom:10px;
}
.sec-head h2{font-size:30px}

/* 三步 */
.steps{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:16px;align-items:center}
.step{position:relative;padding:26px 22px;text-align:center;overflow:hidden;transition:transform .22s ease}
.step:hover{transform:translateY(-6px) rotate(-.5deg)}
.step::after{
  content:"";position:absolute;right:16px;top:16px;width:44px;height:44px;border-radius:50%;
  background-image:radial-gradient(circle at 10px 10px, rgba(6,154,249,.18) 5px, transparent 6px);
  background-size:22px 22px;
}
.step-num{
  position:absolute;left:18px;top:16px;width:30px;height:30px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-weight:700;display:grid;place-items:center;font-size:14px;
}
.step-ico{font-size:46px;margin:6px 0 10px;display:block;animation:floaty 3.6s ease-in-out infinite}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--c-muted)}
.step-arrow{font-size:30px;color:var(--c-primary);animation:nudge 1.4s ease-in-out infinite;text-align:center}
@keyframes nudge{0%,100%{transform:translateX(0)}50%{transform:translateX(6px)}}

/* 功能网格 */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat{padding:24px;transition:transform .2s ease, box-shadow .2s ease}
.feat:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.feat-ico{
  width:56px;height:56px;border-radius:18px;background:var(--tint,var(--c-red-soft));
  display:grid;place-items:center;font-size:28px;margin-bottom:14px;
  transform:rotate(-4deg);transition:transform .25s ease;
}
.feat:hover .feat-ico{transform:rotate(4deg) scale(1.08)}
.feat h3{font-size:17.5px;margin-bottom:7px}
.feat p{font-size:13.5px;color:var(--c-muted)}

/* 示例条 */
.showcase{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.scard{
  background:var(--c-card);border:2px solid var(--c-border);border-radius:var(--radius);
  padding:22px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:6px;
  transition:transform .2s ease, box-shadow .2s ease;font-family:var(--font-body);
}
.scard:hover{transform:translateY(-6px) rotate(1deg);box-shadow:var(--shadow-lg);border-color:var(--c-primary)}
.scard-art{
  font-size:44px;width:92px;height:92px;border-radius:24px;
  background:linear-gradient(135deg,var(--c-red-soft),var(--c-blue-soft));
  display:grid;place-items:center;margin-bottom:8px;transform:rotate(-3deg);
}
.scard:nth-child(2) .scard-art{background:linear-gradient(135deg,var(--c-green-soft),var(--c-red-soft))}
.scard:nth-child(3) .scard-art{background:linear-gradient(135deg,var(--c-blue-soft),var(--c-green-soft))}
.scard-title{font-weight:700;font-size:16px}
.scard-meta{font-size:12.5px;color:var(--c-muted)}

/* CTA 横幅 */
.cta-banner{
  margin:30px 6px 10px;padding:34px 30px;border-radius:var(--radius);
  background:linear-gradient(120deg,var(--c-primary),#f0452a 45%,var(--c-accent));
  color:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background-image:radial-gradient(circle at 14px 14px, rgba(255,255,255,.28) 6px, transparent 7px);
  background-size:28px 28px;
}
.cta-banner h2{font-size:26px;margin-bottom:6px}
.cta-banner p{font-size:14.5px;opacity:.92}

/* ---------------- 生成器 ---------------- */
.gen-layout{display:grid;grid-template-columns:390px 1fr;gap:22px;align-items:start}
.gen-form{padding:24px;position:relative;overflow:hidden}
.gen-form::after{
  content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;
  background-image:radial-gradient(circle at 12px 12px, rgba(214,22,10,.12) 5px, transparent 6px);
  background-size:24px 24px;
}
.field{margin-bottom:18px;position:relative;z-index:1}
.field label{display:block;font-weight:700;font-size:13.5px;margin-bottom:8px}
.field input,.field select{
  width:100%;border:2px solid var(--c-border);border-radius:var(--radius-sm);
  padding:12px 14px;font-size:14.5px;font-family:var(--font-body);background:#fff;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(214,22,10,.1);
}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hint{font-size:12.5px;color:var(--c-muted);text-align:center;margin-top:10px}

/* 主题 chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{
  border:2px solid var(--c-border);background:#fff;border-radius:999px;
  padding:6px 13px;font-size:13px;font-weight:600;color:var(--c-muted);
  transition:all .16s ease;
}
.chip:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-1px)}
.chip.active{background:var(--c-blue-soft);border-color:var(--c-accent);color:var(--c-accent)}

/* 模板选择 */
.tpl-pick{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.tpl-pick-btn{
  border:2px solid var(--c-border);background:#fff;border-radius:var(--radius-sm);
  padding:10px 6px;text-align:center;transition:all .16s ease;
}
.tpl-pick-btn:hover{border-color:var(--c-accent);transform:translateY(-2px)}
.tpl-pick-btn.active{border-color:var(--c-primary);background:var(--c-red-soft);box-shadow:0 0 0 3px rgba(214,22,10,.12)}
.tpl-pick-btn .tp-icon{font-size:24px;display:block;margin-bottom:4px}
.tpl-pick-btn .tp-name{font-size:12.5px;font-weight:700}

/* 生成结果区 */
.gen-out{min-height:520px}
.gen-empty{
  height:100%;min-height:520px;border:3px dashed var(--c-border);border-radius:var(--radius);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;
  background:rgba(255,255,255,.5);
}
.gen-empty-art{font-size:64px;animation:floaty 3.4s ease-in-out infinite}
.gen-empty h3{font-size:20px}
.gen-empty p{color:var(--c-muted);font-size:14px}

/* 加载动画 */
.loader{
  background:var(--c-card);border:2px solid var(--c-border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:40px 26px;text-align:center;
}
.loader-rocket{font-size:64px;display:inline-block;animation:rocket 1.1s ease-in-out infinite}
@keyframes rocket{0%,100%{transform:translateY(0) rotate(-6deg)}50%{transform:translateY(-16px) rotate(8deg)}}
.loader-title{font-size:22px;margin:14px 0 4px}
.loader-step{color:var(--c-muted);min-height:24px;margin-bottom:18px}
.loader-dots{display:flex;gap:10px;justify-content:center}
.loader-dots i{
  width:16px;height:16px;border-radius:50%;display:block;
  background:var(--c-primary);animation:bounce .6s ease-in-out infinite;
}
.loader-dots i:nth-child(2){background:var(--c-accent);animation-delay:.15s}
.loader-dots i:nth-child(3){background:var(--c-secondary);animation-delay:.3s}
.loader-dots i:nth-child(4){background:#ffb300;animation-delay:.45s}
.loader-dots i:nth-child(5){background:var(--c-primary);animation-delay:.6s}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* 结果 */
.result-head{display:flex;align-items:center;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.result-title{font-size:22px;margin-right:auto}
.result-actions{display:flex;gap:8px;flex-wrap:wrap}
.book-cover{
  display:flex;align-items:center;gap:18px;padding:22px;margin-bottom:18px;
  background:linear-gradient(120deg,var(--c-red-soft),#fff 60%,var(--c-blue-soft));
  border:2px solid var(--c-border);border-radius:var(--radius);
}
.book-cover-art{
  width:96px;height:128px;border-radius:12px 20px 20px 12px;background:#fff;border:3px solid var(--c-border);
  display:grid;place-items:center;font-size:44px;flex-shrink:0;box-shadow:6px 8px 18px rgba(44,28,27,.12);
  position:relative;overflow:hidden;
}
.book-cover-art::before{content:"";position:absolute;left:0;top:0;bottom:0;width:8px;background:var(--c-primary)}
.book-cover-info h3{font-size:22px}
.book-cover-info p{color:var(--c-muted);font-size:13.5px;margin-top:4px}
.pages-scroll{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.page-card{
  background:var(--c-card);border:2px solid var(--c-border);border-radius:var(--radius);
  overflow:hidden;transition:transform .18s ease, box-shadow .18s ease;
}
.page-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.page-art{position:relative;height:150px;display:grid;place-items:center;font-size:44px;overflow:hidden}
.page-art .pg-no{
  position:absolute;top:8px;left:10px;background:rgba(255,255,255,.85);
  border-radius:8px;font-size:11px;font-weight:700;padding:2px 8px;color:var(--c-muted);
}
.page-art .pg-reroll{
  position:absolute;bottom:8px;right:8px;border:none;border-radius:9px;
  background:rgba(255,255,255,.9);padding:4px 9px;font-size:11.5px;font-weight:700;color:var(--c-muted);
  box-shadow:0 2px 8px rgba(0,0,0,.08);transition:all .15s ease;
}
.page-art .pg-reroll:hover{background:var(--c-primary);color:#fff}
.page-body{padding:12px 14px}
.page-text{
  width:100%;border:1px dashed var(--c-border);border-radius:12px;padding:9px 10px;
  font-size:13.5px;line-height:1.7;font-family:var(--font-body);background:var(--c-bg);
  resize:vertical;min-height:74px;color:var(--c-text);transition:border-color .16s ease;
}
.page-text:focus{outline:none;border-color:var(--c-accent);background:#fff}
.page-desc{
  margin-top:8px;font-size:11.5px;color:var(--c-muted);
  background:var(--c-blue-soft);border-radius:10px;padding:7px 10px;line-height:1.55;
}

/* ---------------- 绘本库 ---------------- */
.lib-toolbar{display:flex;align-items:center;gap:16px;padding:14px 18px;margin-bottom:22px;flex-wrap:wrap}
.search-box{
  flex:1;min-width:220px;display:flex;align-items:center;gap:8px;
  background:var(--c-bg);border:2px solid var(--c-border);border-radius:14px;padding:9px 14px;
}
.search-box:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(6,154,249,.1)}
.search-box input{border:none;background:none;outline:none;flex:1;font-size:14px;font-family:var(--font-body)}
.lib-count{font-size:13px;color:var(--c-muted);font-weight:600}
.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.lib-card{
  background:var(--c-card);border:2px solid var(--c-border);border-radius:var(--radius);
  overflow:hidden;transition:transform .18s ease, box-shadow .18s ease;position:relative;
}
.lib-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.lib-fav{
  position:absolute;top:10px;right:10px;z-index:2;border:none;background:rgba(255,255,255,.9);
  border-radius:12px;width:36px;height:36px;font-size:17px;box-shadow:0 3px 10px rgba(0,0,0,.1);
  transition:transform .15s ease;
}
.lib-fav:hover{transform:scale(1.12)}
.lib-fav.on{background:#fff5c4}
.lib-cover{
  height:150px;position:relative;display:grid;place-items:center;font-size:50px;overflow:hidden;
}
.lib-cover .tpl-badge{
  position:absolute;bottom:8px;left:10px;background:rgba(255,255,255,.9);border-radius:8px;
  font-size:11px;font-weight:700;padding:3px 8px;color:var(--c-muted);
}
.lib-body{padding:14px 16px}
.lib-body h3{font-size:16.5px;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lib-meta{font-size:12.5px;color:var(--c-muted);margin-bottom:12px}
.lib-actions{display:flex;gap:7px;flex-wrap:wrap}
.lib-actions .btn{flex:1;padding:8px 6px;font-size:12.5px}
.lib-empty{
  text-align:center;padding:60px 20px;border:3px dashed var(--c-border);border-radius:var(--radius);
  background:rgba(255,255,255,.55);
}
.lib-empty-art{font-size:60px;animation:floaty 3.2s ease-in-out infinite;display:block;margin-bottom:10px}
.lib-empty h3{font-size:20px;margin-bottom:6px}
.lib-empty p{color:var(--c-muted);margin-bottom:16px}

/* ---------------- 模板市场 ---------------- */
.tpl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.tpl-card{
  background:var(--c-card);border:2px solid var(--c-border);border-radius:var(--radius);
  overflow:hidden;transition:transform .18s ease, box-shadow .18s ease;display:flex;flex-direction:column;
}
.tpl-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.tpl-preview{position:relative;background:var(--c-bg);padding:26px 18px;display:grid;place-items:center;overflow:hidden}
.tpl-preview::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 18px 18px, rgba(6,154,249,.08) 4px, transparent 5px);
  background-size:36px 36px;
}
.tpl-mock{position:relative;z-index:1;background:#fff;border:2px solid var(--c-border);border-radius:6px;box-shadow:var(--shadow);overflow:hidden}
.tpl-mock .tm-art{background:linear-gradient(135deg,var(--c-red-soft),var(--c-blue-soft));display:grid;place-items:center;font-size:26px}
.tpl-mock .tm-line{height:6px;border-radius:4px;background:var(--c-border);margin:3px 0}
.tpl-mock .tm-line.w{width:70%}
.tpl-mock .tm-line.l{width:90%}
.tpl-mock .tm-line.c{width:45%;background:var(--c-primary);opacity:.5}
.tm-a4{width:150px;aspect-ratio:4/3;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:6px;padding:8px}
.tm-a4 .tm-art{grid-row:span 2}
.tm-square{width:110px;aspect-ratio:1;display:grid;grid-template-rows:1fr auto;gap:6px;padding:8px}
.tm-flip{width:140px;aspect-ratio:4/3;position:relative;border-radius:6px}
.tm-flip::before{content:"";position:absolute;inset:0;background:#fff;border:2px solid var(--c-border);transform:translateX(8px) skewY(2deg);border-radius:6px}
.tm-flip .tm-art{position:absolute;inset:0;transform:translateX(-6px)}
.tm-roll{width:120px;height:150px;display:flex;flex-direction:column;gap:5px;padding:8px}
.tm-roll .tm-seg{flex:1;background:linear-gradient(90deg,var(--c-red-soft),var(--c-blue-soft));border-radius:5px}
.tm-sticker{width:120px;height:140px;display:grid;gap:6px;padding:8px}
.tm-sticker .tm-art{border-radius:10px}
.tpl-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.tpl-body h3{font-size:17px}
.tpl-body p{font-size:13px;color:var(--c-muted);flex:1}
.tpl-tags{display:flex;gap:6px;flex-wrap:wrap}
.tpl-tags span{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--c-blue-soft);color:var(--c-accent)}
.tpl-tags span:nth-child(2){background:var(--c-green-soft);color:#0b5a12}

/* ---------------- 阅读预览弹窗 ---------------- */
.modal{
  position:fixed;inset:0;z-index:100;display:grid;place-items:center;
  background:rgba(44,28,27,.5);backdrop-filter:blur(4px);padding:18px;
}
.modal[hidden]{display:none}
.modal-box{
  width:min(920px,100%);max-height:92vh;overflow:auto;
  background:var(--c-bg);border-radius:24px;padding:20px;box-shadow:var(--shadow-lg);
  border:2px solid var(--c-border);animation:fadeUp .3s ease;
}
.modal-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.modal-head h3{font-size:20px;margin-right:auto}
.modal-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.modal-close{
  width:38px;height:38px;border-radius:12px;border:2px solid var(--c-border);background:#fff;
  font-size:16px;transition:all .15s ease;
}
.modal-close:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:rotate(90deg)}
.book-stage{
  background:var(--c-card);border:2px solid var(--c-border);border-radius:var(--radius);
  min-height:340px;display:grid;place-items:center;overflow:hidden;position:relative;perspective:1400px;
}
.book-page{
  width:min(560px,100%);aspect-ratio:4/3;background:#fff;
  border-radius:12px;border:2px solid var(--c-border);box-shadow:var(--shadow-lg);
  display:grid;grid-template-rows:1fr auto;overflow:hidden;transform-style:preserve-3d;
  transition:transform .4s ease;animation:pageIn .4s ease;
}
@keyframes pageIn{from{opacity:0;transform:translateX(30px) rotateY(-8deg)}to{opacity:1;transform:none}}
.book-page.flipping{transform:rotateY(-40deg)}
.book-page .bp-art{position:relative;display:grid;place-items:center;font-size:70px;overflow:hidden}
.book-page .bp-art .bp-no{position:absolute;top:10px;left:12px;font-size:11.5px;font-weight:700;color:var(--c-muted);background:rgba(255,255,255,.85);border-radius:8px;padding:3px 9px}
.book-page .bp-art .bp-bubble{
  position:absolute;bottom:10px;right:12px;font-size:12px;font-weight:700;color:#fff;
  background:rgba(44,28,27,.45);border-radius:999px;padding:4px 11px;
}
.book-page .bp-text{padding:18px 22px;font-size:16px;line-height:1.8;font-weight:600;text-align:center;display:flex;align-items:center;justify-content:center}
.pager{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:16px}
.pager-now{font-weight:700;font-size:15px;color:var(--c-muted);min-width:60px;text-align:center}

/* ---------------- 页脚 ---------------- */
.footer{background:#fff;border-top:2px solid var(--c-border);margin-top:40px}
.footer-inner{
  max-width:1180px;margin:0 auto;padding:30px 18px;display:flex;align-items:flex-start;gap:40px;flex-wrap:wrap;
}
.footer-brand{flex:1;min-width:220px}
.footer-brand b{font-family:var(--font-head);font-size:18px;vertical-align:middle;margin-left:6px}
.footer-brand p{font-size:13px;color:var(--c-muted);margin-top:8px}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links button{background:none;border:none;color:var(--c-muted);font-size:14px;text-align:left;padding:2px 0}
.footer-links button:hover{color:var(--c-primary)}
.footer-note{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--c-muted);text-align:right}

/* ---------------- Toast ---------------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%);
  background:var(--c-text);color:#fff;padding:12px 22px;border-radius:999px;
  font-size:14px;font-weight:600;box-shadow:var(--shadow-lg);z-index:200;
  animation:toastIn .3s ease;
}
.toast[hidden]{display:none}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,20px)}to{opacity:1;transform:translate(-50%,0)}}

/* ---------------- 响应式 ---------------- */
@media(max-width:960px){
  .gen-layout{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr;gap:12px}
  .step-arrow{transform:rotate(90deg)}
  .hero{grid-template-columns:1fr;text-align:center}
  .hero-cta,.hero-stats{justify-content:center}
  .hero-art{min-height:320px}
}
@media(max-width:720px){
  .nav{
    position:fixed;top:74px;right:14px;left:14px;z-index:49;display:none;flex-direction:column;
    background:#fff;border:2px solid var(--c-border);border-radius:18px;padding:10px;box-shadow:var(--shadow-lg);
  }
  .nav.open{display:flex}
  .nav-link{padding:12px;font-size:15px}
  .burger{display:flex}
  .topbar .nav-cta{display:none}
  .feature-grid{grid-template-columns:1fr}
  .showcase{grid-template-columns:1fr}
  .hero h1{font-size:38px}
  .tpl-pick{grid-template-columns:repeat(3,1fr)}
  .row2{grid-template-columns:1fr}
  .cta-banner{flex-direction:column;text-align:center}
  .book-page .bp-art{font-size:52px}
  .modal-actions{width:100%}
  .modal-head h3{margin-right:0}
}

/* ---------------- PDF 导出舞台（打印用） ---------------- */
.pdf-stage{position:fixed;left:-9999px;top:0;width:297mm;background:#fff}
.pdf-page{
  width:297mm;height:210mm;display:grid;grid-template-rows:1fr auto;overflow:hidden;
  background:#fff;border:none;margin:0;
}
.pdf-page .pdf-art{display:grid;place-items:center;font-size:120mm}
.pdf-page .pdf-text{font-family:var(--font-body);text-align:center;padding:14mm 22mm;font-size:16mm;line-height:1.8;font-weight:600}