:root{
  --red:#9e1b1b; --red-2:#c0392b; --gold:#c9a227; --gold-2:#e3c25a;
  --paper:#f7f1e3; --ink:#2b2118; --ink-2:#6b5d4f; --line:#e3d8c2;
  --card:#fffdf8; --shadow:0 6px 24px rgba(60,40,20,.12);
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent;}
body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",serif;
  background:var(--paper);color:var(--ink);line-height:1.7;}
a{color:inherit;text-decoration:none;cursor:pointer;}
img{max-width:100%;}

/* 顶部导航（PC） */
.topbar{max-width:1180px;margin:0 auto;display:flex;align-items:center;
  justify-content:space-between;padding:14px 20px;position:sticky;top:0;z-index:30;
  background:linear-gradient(180deg,#fffdf8,#f7f1e3);border-bottom:1px solid var(--line);}
.brand{display:flex;align-items:center;gap:10px;cursor:pointer;}
.brand-mark{width:42px;height:42px;border-radius:8px;background:var(--red);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;
  box-shadow:0 3px 10px rgba(158,27,27,.4);}
.brand-text strong{font-size:20px;letter-spacing:2px;display:block;}
.brand-text em{font-size:12px;color:var(--ink-2);font-style:normal;}
.nav a{margin-left:22px;font-size:15px;color:var(--ink-2);padding:6px 2px;position:relative;}
.nav a.active,.nav a:hover{color:var(--red);}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--gold);}
.menu-btn{display:none;background:none;border:none;font-size:24px;color:var(--red);}

/* 视图容器 */
.view{max-width:1180px;margin:0 auto;padding:24px 20px 40px;min-height:60vh;}
.site-foot{text-align:center;color:var(--ink-2);font-size:12px;padding:20px;border-top:1px solid var(--line);}

/* Hero */
.hero{background:linear-gradient(135deg,var(--red),#6e1212);color:#fff;border-radius:16px;
  padding:34px 30px;box-shadow:var(--shadow);position:relative;overflow:hidden;}
.hero h1{margin:0 0 8px;font-size:30px;letter-spacing:3px;}
.hero p{margin:0;opacity:.92;font-size:15px;}
.hero .cta{margin-top:18px;display:inline-block;background:var(--gold);color:#3a2a00;
  padding:10px 22px;border-radius:30px;font-weight:700;}
.hero-deco{position:absolute;right:-30px;top:-30px;font-size:160px;opacity:.08;}

/* 区块标题 */
.section-title{display:flex;align-items:center;gap:10px;margin:30px 0 16px;}
.section-title b{font-size:19px;letter-spacing:1px;}
.section-title i{width:4px;height:18px;background:var(--gold);display:inline-block;border-radius:2px;}

/* 书架卡片 */
.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px;}
.book-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;
  box-shadow:var(--shadow);transition:.2s;cursor:pointer;}
.book-card:hover{transform:translateY(-4px);border-color:var(--gold);}
.book-cover{width:64px;height:84px;border-radius:8px;background:linear-gradient(160deg,var(--red),#5e0f0f);
  color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;font-size:16px;
  font-weight:700;line-height:1.3;white-space:pre;margin-bottom:12px;box-shadow:0 4px 12px rgba(0,0,0,.2);}
.book-card h3{margin:0 0 4px;font-size:18px;}
.book-card .author{color:var(--ink-2);font-size:13px;margin-bottom:8px;}
.book-card .desc{font-size:13px;color:var(--ink-2);height:42px;overflow:hidden;}
.tag{display:inline-block;font-size:12px;color:var(--red);background:#fbe9e7;padding:2px 10px;border-radius:20px;margin-top:10px;}

/* 详情页 */
.detail-head{display:flex;gap:20px;align-items:flex-start;background:var(--card);
  border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow);}
.chapter-list{margin-top:20px;}
.chapter-item{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;
  background:var(--card);border:1px solid var(--line);border-radius:10px;margin-bottom:10px;cursor:pointer;}
.chapter-item:hover{border-color:var(--gold);}
.chapter-item .lock{font-size:12px;color:#fff;background:var(--red);padding:2px 8px;border-radius:6px;}
.chapter-item .free{font-size:12px;color:#2e7d32;background:#e6f4ea;padding:2px 8px;border-radius:6px;}

/* 阅读页 */
.reader{max-width:740px;margin:0 auto;background:var(--card);border-radius:14px;padding:30px;box-shadow:var(--shadow);}
.reader h2{text-align:center;letter-spacing:2px;margin-top:0;}
.reader p{font-size:17px;text-indent:2em;margin:14px 0;}
.paywall{text-align:center;padding:30px 20px;background:linear-gradient(180deg,#fff,#fbf3e2);
  border:2px dashed var(--gold);border-radius:14px;margin-top:20px;}
.paywall .price{font-size:26px;color:var(--red);font-weight:700;}
.btn{display:inline-block;background:var(--red);color:#fff;border:none;padding:11px 26px;
  border-radius:30px;font-size:15px;cursor:pointer;font-weight:700;}
.btn.gold{background:var(--gold);color:#3a2a00;}
.btn.ghost{background:#fff;color:var(--red);border:1px solid var(--red);}
.btn:active{opacity:.85;}

/* 会员页 */
.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;}
.plan-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;
  text-align:center;box-shadow:var(--shadow);position:relative;}
.plan-card.hot{border:2px solid var(--gold);}
.plan-card .hot-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--gold);color:#3a2a00;font-size:12px;padding:3px 12px;border-radius:20px;font-weight:700;}
.plan-card .pname{font-size:18px;font-weight:700;}
.plan-card .pprice{font-size:34px;color:var(--red);font-weight:800;margin:8px 0;}
.plan-card .pprice small{font-size:14px;color:var(--ink-2);font-weight:400;}
.plan-card .pdesc{font-size:13px;color:var(--ink-2);min-height:40px;}

/* 收款码弹层 */
.qr-tabs{display:flex;gap:8px;margin-bottom:14px;justify-content:center;}
.qr-tabs button{flex:1;padding:8px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:14px;}
.qr-tabs button.on{background:var(--red);color:#fff;border-color:var(--red);}
.qr-img{width:220px;height:220px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:10px;margin:0 auto;display:block;}
.qr-tip{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;line-height:1.6;}
.proof-box{margin-top:14px;text-align:center;}
.proof-box textarea{width:100%;height:60px;border:1px solid var(--line);border-radius:8px;padding:8px;font-size:13px;resize:none;}

/* 推广页 */
.spread-hero{background:linear-gradient(135deg,var(--gold),#a8821a);color:#3a2a00;border-radius:14px;
  padding:24px;box-shadow:var(--shadow);}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0;}
.stat-box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center;}
.stat-box b{display:block;font-size:24px;color:var(--red);}
.stat-box span{font-size:12px;color:var(--ink-2);}
.poster{width:100%;max-width:340px;border-radius:12px;box-shadow:var(--shadow);display:block;margin:0 auto;}
.code-pill{display:inline-block;background:#fff;border:1px dashed var(--red);color:var(--red);
  padding:6px 14px;border-radius:8px;font-size:16px;letter-spacing:2px;font-weight:700;}

/* 我的 */
.mine-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow);}
.mine-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);}
.mine-row:last-child{border-bottom:none;}

/* 弹层 */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:50;padding:16px;}
.modal-mask.show{display:flex;}
.modal{background:var(--card);border-radius:16px;padding:24px;max-width:420px;width:100%;max-height:88vh;overflow:auto;}
.modal h3{margin:0 0 14px;letter-spacing:1px;}

/* ====== 移动端底部 Tab（H5 底部菜单栏） ====== */
.tabbar{
  position:fixed;bottom:0;left:0;right:0;width:100%;
  height:calc(60px + env(safe-area-inset-bottom,0px));
  padding-bottom:env(safe-area-inset-bottom,0px);
  background:#fff;border-top:1px solid var(--line);
  display:flex;z-index:40;box-sizing:border-box;
}
.tabbar a{
  flex:1;min-width:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;font-size:20px;line-height:1;color:#9a9a9a;cursor:pointer;
}
.tabbar a span{font-size:11px;line-height:1.2;}
.tabbar a.active{color:var(--red);font-weight:700;}

/* ====== 移动端（H5）自适应 ====== */
@media (max-width:768px){
  .topbar{padding:10px 14px;}
  .nav{display:none;position:absolute;top:58px;left:0;right:0;flex-direction:column;
    background:#fffdf8;border-bottom:1px solid var(--line);padding:8px 0;}
  .nav.open{display:flex;}
  .nav a{margin:0;padding:12px 20px;}
  .menu-btn{display:block;}
  .view{padding:16px 14px 80px;}
  .hero{padding:24px 20px;}
  .hero h1{font-size:24px;}
  .detail-head{flex-direction:column;gap:12px;}
  .book-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;}
  .reader{padding:20px 16px;}
  .reader p{font-size:16px;}
  .tabbar{display:flex;}
  .site-foot{display:none;}
}
@media (min-width:769px){ .tabbar{display:none;} }

/* 加载/空态 */
.loading{text-align:center;color:var(--ink-2);padding:40px;}

/* ====== 听书播放器 ====== */
.audio-tag{font-size:13px;margin-left:4px;}
.audio-player{display:flex;align-items:center;gap:12px;background:linear-gradient(135deg,#3a7bd5,#2c5aa0);color:#fff;border-radius:12px;padding:12px 16px;margin-bottom:20px;box-shadow:0 4px 14px rgba(44,90,160,.3);}
.audio-player .ap-btn{width:42px;height:42px;border-radius:50%;background:#fff;color:#2c5aa0;border:none;font-size:18px;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:700;}
.audio-player .ap-info{flex:1;min-width:0;}
.audio-player .ap-title{font-size:14px;font-weight:700;margin-bottom:6px;}
.audio-player .ap-bar{height:5px;background:rgba(255,255,255,.3);border-radius:3px;overflow:hidden;}
.audio-player .ap-progress{height:100%;width:0;background:var(--gold2);border-radius:3px;transition:width .2s;}
.audio-player .ap-time{font-size:12px;opacity:.9;font-variant-numeric:tabular-nums;}

/* ====== 专题栏目（首页轮播） ====== */
.topic-carousel{position:relative;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);}
.topic-track{display:flex;transition:transform .5s ease;}
.topic-slide{min-width:100%;position:relative;cursor:pointer;}
.topic-slide img{width:100%;height:260px;object-fit:cover;display:block;}
.topic-slide-mask{position:absolute;left:0;right:0;bottom:0;padding:18px 20px;
  background:linear-gradient(transparent,rgba(0,0,0,.72));color:#fff;}
.topic-slide-mask h3{margin:4px 0;font-size:20px;}
.topic-slide-mask p{margin:0;font-size:13px;opacity:.9;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topic-dots{position:absolute;bottom:10px;right:16px;display:flex;gap:6px;}
.topic-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;}
.topic-dot.on{background:var(--gold);}
.topic-type{display:inline-block;font-size:11px;padding:2px 10px;border-radius:20px;background:var(--gold);color:#3a2a00;font-weight:700;}
.topic-type.online{background:#3b6fd4;color:#fff;}

/* 专题列表 */
.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:18px;}
.topic-card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);cursor:pointer;transition:.2s;}
.topic-card:hover{transform:translateY(-4px);border-color:var(--gold);}
.topic-card-img{position:relative;}
.topic-card-img img{width:100%;height:180px;object-fit:cover;display:block;}
.topic-card-img .topic-type{position:absolute;top:12px;left:12px;}
.topic-card-body{padding:16px;}
.topic-card-body h3{margin:0 0 8px;font-size:18px;}
.t-desc{font-size:13px;color:var(--ink-2);margin:0 0 10px;line-height:1.6;min-height:40px;}
.t-meta{display:flex;gap:14px;font-size:12px;color:var(--ink-2);flex-wrap:wrap;}
.t-meta.big{font-size:14px;gap:18px;margin:14px 0;}
.t-foot{display:flex;justify-content:space-between;margin-top:12px;align-items:center;}
.t-status{font-size:12px;color:var(--red);background:#fbe9e7;padding:2px 10px;border-radius:20px;}
.t-fee{font-size:13px;font-weight:700;color:var(--ink);}

/* 专题详情 */
.topic-detail .topic-detail-cover img{width:100%;height:260px;object-fit:cover;border-radius:14px;}
.topic-detail h2{margin:16px 0 10px;}
.t-badges{display:flex;gap:10px;margin-bottom:6px;}

/* ====== 书友交流圈 ====== */
.post-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px;box-shadow:var(--shadow);cursor:pointer;}
.post-card:hover{border-color:var(--gold);}
.post-head{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.post-avatar{width:36px;height:36px;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;}
.post-head b{font-size:15px;}
.post-time{font-size:12px;color:var(--ink-2);margin-left:auto;}
.post-card h3{margin:0 0 6px;font-size:16px;}
.post-content{font-size:14px;line-height:1.7;margin:0 0 10px;white-space:pre-wrap;}
.post-foot{display:flex;gap:18px;font-size:13px;color:var(--ink-2);}
.comment-list{max-height:200px;overflow:auto;border-top:1px solid var(--line);padding-top:8px;}
.comment-item{font-size:13px;padding:8px 0;border-bottom:1px dashed var(--line);}
.comment-item b{color:var(--red);margin-right:6px;}
.comment-item em{display:block;font-size:11px;color:var(--ink-2);margin-top:2px;}
.btn.sm{padding:7px 16px;font-size:13px;}

/* ====== 积分商城 ====== */
.points-hero{background:linear-gradient(135deg,var(--red),#6e1212);color:#fff;border-radius:16px;padding:26px;text-align:center;box-shadow:var(--shadow);}
.points-num{font-size:46px;font-weight:800;color:var(--gold-2);}
.points-label{font-size:15px;opacity:.9;margin-top:2px;}
.points-hero p{font-size:13px;opacity:.85;margin:10px 0 0;}
.good-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;}
.good-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;text-align:center;box-shadow:var(--shadow);}
.good-cover{font-size:40px;margin-bottom:8px;}
.good-card h3{font-size:15px;margin:0 0 6px;}
.good-desc{font-size:12px;color:var(--ink-2);min-height:32px;margin:0 0 8px;}
.good-price{font-size:22px;color:var(--red);font-weight:800;}
.good-price small{font-size:12px;color:var(--ink-2);font-weight:400;}
.good-stock{font-size:12px;color:var(--ink-2);margin:4px 0 10px;}
.good-card .btn{width:100%;}
.tip{font-size:12px;color:var(--ink-2);line-height:1.6;}

/* ====== 会员推广专题页 ====== */
.promo-hero{background:linear-gradient(135deg,#9a2b25 0%,#6e1212 55%,#c69a4f 130%);color:#fff;border-radius:18px;padding:40px 28px;text-align:center;box-shadow:var(--shadow);position:relative;overflow:hidden;}
.promo-badge{display:inline-block;background:#c69a4f;color:#3a2a00;font-size:13px;font-weight:700;padding:4px 16px;border-radius:20px;margin-bottom:14px;}
.promo-hero h1{font-size:30px;margin:0 0 8px;letter-spacing:1px;}
.promo-sub{font-size:15px;opacity:.92;margin:0 0 16px;}
.promo-price{font-size:52px;font-weight:800;color:#e3c25a;margin-bottom:18px;}
.promo-price small{font-size:18px;font-weight:400;color:#fff;opacity:.8;margin-left:4px;}
.promo-cta{display:inline-block;background:#fff;color:#9a2b25;font-size:16px;font-weight:800;padding:14px 34px;border-radius:40px;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.2);}
.promo-cta:hover{background:#fdf6e9;}
.promo-note{font-size:12px;opacity:.8;margin:14px 0 0;}
.gift-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;}
.gift-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center;box-shadow:var(--shadow);cursor:pointer;transition:.2s;}
.gift-card:hover{border-color:var(--gold);transform:translateY(-3px);}
.gift-icon{font-size:44px;margin-bottom:8px;}
.gift-card h4{font-size:16px;margin:0 0 6px;color:var(--red);}
.gift-card p{font-size:13px;color:var(--ink-2);margin:0;line-height:1.6;}
.kids-banner{display:flex;gap:20px;align-items:center;background:linear-gradient(135deg,#fdf6e9,#fff);border:1px solid var(--gold);border-radius:16px;padding:22px;box-shadow:var(--shadow);}
.kids-cover{flex:0 0 90px;height:126px;border-radius:10px;background:linear-gradient(160deg,#3b6fd4,#274b8f);color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:700;text-align:center;white-space:pre-line;}
.kids-banner h3{font-size:20px;color:var(--red);margin:0 0 6px;}
.kids-banner p{font-size:14px;color:var(--ink-2);margin:0 0 10px;line-height:1.6;}
.benefit-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;}
.benefit{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;font-size:14px;font-weight:600;text-align:center;box-shadow:var(--shadow);}
@media(max-width:600px){
  .promo-hero h1{font-size:24px;}
  .promo-price{font-size:42px;}
  .kids-banner{flex-direction:column;text-align:center;}
}

/* ====== 我的礼品记录 ====== */
.gift-claim-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px;box-shadow:var(--shadow);}
.gc-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;}
.gc-head b{font-size:15px;color:var(--red);}
.badge.pending{background:#fbe9e7;color:#9a2b25;}
.badge.shipped{background:#e7f3e7;color:#2e7d32;}
.gc-info{font-size:13px;color:var(--ink-2);margin:0;}

/* ---------- TTS 听书（浏览器本地朗读） ---------- */
.tts-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:linear-gradient(135deg,#7b4b2a,#5a3216);color:#fff;border-radius:12px;padding:10px 14px;margin-bottom:20px;box-shadow:0 4px 14px rgba(90,50,22,.3);}
.tts-bar .tts-btn{width:38px;height:38px;border-radius:50%;background:#fff;color:#5a3216;border:none;font-size:15px;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:700;}
.tts-bar .tts-info{flex:1;min-width:120px;}
.tts-bar .tts-title{font-size:13px;font-weight:700;}
.tts-bar .tts-state{font-size:12px;opacity:.85;margin-top:2px;}
.tts-bar select{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.35);border-radius:8px;padding:5px 8px;font-size:12px;}
.tts-bar select option{color:#333;}
.reader p.tts-cur{background:#fdf3d7;border-radius:6px;box-shadow:0 0 0 6px #fdf3d7;transition:background .3s;}
.reader p.tts-done{color:#a89f92;}

/* 创始名额进度条 */
.founders-bar{height:7px;background:rgba(158,27,27,.12);border-radius:4px;overflow:hidden;margin:8px 0 4px;}
.founders-fill{height:100%;background:linear-gradient(90deg,var(--gold),#e3c25a);border-radius:4px;transition:width .5s;}
.founders-note{font-size:12px;color:var(--ink-2);margin-bottom:8px;}