:root{
  --bg:#181A1D;
  --panel:#1F2226;
  --card:#282C31;
  --hover:#343940;
  --line:#3A3F47;
  --text:#ECEDEF;
  --sub:#9CA1A8;
  --orange:#FF6B35;
  --blue:#4A9EFF;
  --green:#43C77D;
  --radius:10px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}

.top-line{height:3px;background:linear-gradient(90deg,var(--orange),var(--line) 60%,#2a2d32);}

/* header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(24,26,29,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1240px;margin:0 auto;
  display:flex;align-items:center;gap:20px;
  padding:0 20px;height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand img{height:32px;width:auto;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.5px;white-space:nowrap;}
.brand-name span{color:var(--orange);}
.main-nav{display:flex;gap:18px;flex-shrink:0;}
.main-nav a{font-size:14px;color:var(--sub);transition:color .2s;}
.main-nav a:hover{color:var(--text);}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-box{
  display:flex;align-items:center;gap:6px;
  background:var(--card);border:1px solid var(--line);
  border-radius:20px;padding:6px 14px;width:200px;
}
.search-box input{
  background:none;border:none;outline:none;color:var(--text);
  font-size:13px;width:100%;
}
.search-box input::placeholder{color:var(--sub);}
.line-status{
  display:flex;align-items:center;gap:6px;font-size:13px;color:var(--sub);
  cursor:pointer;white-space:nowrap;
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 6px var(--green);}
.btn-login{
  background:var(--orange);color:#fff;font-size:14px;font-weight:600;
  padding:8px 18px;border-radius:20px;border:none;cursor:pointer;
  transition:opacity .2s;
}
.btn-login:hover{opacity:.85;}
.shelf-btn{position:relative;font-size:13px;color:var(--sub);white-space:nowrap;}
.shelf-btn::after{
  content:"3";position:absolute;top:-6px;right:-12px;
  background:var(--orange);color:#fff;font-size:10px;
  width:16px;height:16px;border-radius:50%;display:flex;
  align-items:center;justify-content:center;
}
.notice-bar{
  background:var(--panel);border-bottom:1px solid var(--line);
  font-size:12px;color:var(--sub);overflow:hidden;
}
.notice-inner{
  max-width:1240px;margin:0 auto;padding:6px 20px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.notice-inner b{color:var(--orange);font-weight:600;}

/* layout */
.wrap{max-width:1240px;margin:0 auto;padding:0 20px;}
section{padding:52px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap;}
.section-title{
  font-size:22px;font-weight:700;position:relative;padding-left:14px;line-height:1.3;
}
.section-title::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;
  background:var(--orange);border-radius:2px;
}
.section-desc{font-size:13px;color:var(--sub);}
.more-link{font-size:13px;color:var(--blue);}
.more-link:hover{text-decoration:underline;}

/* hero */
.hero{padding:36px 0 90px;position:relative;}
.hero-grid{display:grid;grid-template-columns:62% 38%;gap:22px;}
.banner-carousel{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--card);}
.slide{display:none;position:relative;min-height:420px;}
.slide.active{display:block;animation:fadeIn .5s ease;}
@keyframes fadeIn{from{opacity:.4}to{opacity:1}}
.slide-media{position:absolute;inset:0;}
.slide-media img{width:100%;height:100%;object-fit:cover;filter:blur(1px) brightness(.42);}
.slide-body{position:relative;z-index:2;padding:38px 34px;display:flex;flex-direction:column;justify-content:flex-end;min-height:420px;}
.slide-tag{
  display:inline-block;align-self:flex-start;background:var(--orange);
  color:#fff;font-size:12px;font-weight:600;padding:3px 12px;border-radius:14px;margin-bottom:14px;
}
.slide-title{font-size:30px;font-weight:800;margin-bottom:10px;line-height:1.3;}
.slide-sub{font-size:14px;color:#d8dade;margin-bottom:10px;max-width:520px;}
.slide-meta{font-size:13px;color:var(--sub);margin-bottom:22px;}
.slide-btns{display:flex;gap:12px;flex-wrap:wrap;}
.btn-primary{
  background:var(--orange);color:#fff;font-size:14px;font-weight:600;
  padding:10px 26px;border-radius:22px;border:none;cursor:pointer;transition:transform .2s,opacity .2s;
}
.btn-primary:hover{transform:translateY(-2px);opacity:.9;}
.btn-ghost{
  background:transparent;color:var(--text);font-size:14px;
  padding:10px 24px;border-radius:22px;border:1px solid var(--line);cursor:pointer;transition:border-color .2s;
}
.btn-ghost:hover{border-color:var(--orange);}
.carousel-dots{position:absolute;right:20px;bottom:20px;z-index:3;display:flex;gap:8px;}
.carousel-dots button{
  width:9px;height:9px;border-radius:50%;border:none;background:rgba(255,255,255,.35);cursor:pointer;padding:0;
}
.carousel-dots button.active{background:var(--orange);width:22px;border-radius:5px;}

/* hot list */
.hot-list{background:var(--panel);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;}
.hot-list-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.hot-list-head h2{font-size:17px;font-weight:700;}
.hot-list-head h2::before{content:"TOP";font-size:11px;color:var(--orange);margin-right:6px;}
.hot-items{flex:1;display:flex;flex-direction:column;gap:2px;}
.hot-item{
  display:flex;align-items:center;gap:10px;padding:8px;border-radius:8px;transition:background .2s;
}
.hot-item:hover{background:var(--hover);}
.hot-rank{font-size:15px;font-weight:800;width:20px;text-align:center;color:var(--sub);flex-shrink:0;}
.hot-item:nth-child(-n+3) .hot-rank{color:var(--orange);}
.hot-cover{width:38px;height:50px;border-radius:4px;overflow:hidden;flex-shrink:0;background:var(--card);}
.hot-cover img{width:100%;height:100%;object-fit:cover;}
.hot-info{min-width:0;}
.hot-title{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.hot-meta{font-size:11.5px;color:var(--sub);}
.hot-more{display:block;text-align:center;font-size:13px;color:var(--blue);padding-top:12px;border-top:1px solid var(--line);margin-top:8px;}

/* quick bar */
.quick-bar{
  margin-top:-56px;position:relative;z-index:5;
}
.quick-grid{
  display:grid;grid-template-columns:repeat(6,1fr);gap:12px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:14px;padding:16px;
  box-shadow:0 14px 30px rgba(0,0,0,.45);
}
.quick-card{
  padding:14px 12px;border-radius:10px;background:var(--card);
  transition:transform .2s,background .2s;
}
.quick-card:hover{transform:translateY(-3px);background:var(--hover);}
.quick-icon{font-size:20px;margin-bottom:8px;display:block;}
.quick-title{font-size:14px;font-weight:700;margin-bottom:4px;}
.quick-desc{font-size:11.5px;color:var(--sub);line-height:1.5;}

/* cards generic */
.card{
  background:var(--card);border-radius:var(--radius);overflow:hidden;
  transition:transform .2s,border-color .2s;
  border:1px solid transparent;
}
.card:hover{transform:translateY(-3px);border-color:var(--orange);}
.cover{position:relative;overflow:hidden;background:var(--panel);}
.cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s;}
.card:hover .cover img{transform:scale(1.03);}

/* editor picks */
.editor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.editor-card .cover{aspect-ratio:3/4;}
.badge{
  position:absolute;left:10px;top:10px;background:var(--orange);color:#fff;
  font-size:11px;font-weight:600;padding:3px 10px;border-radius:12px;
}
.editor-body{padding:16px;}
.editor-title{font-size:16px;font-weight:700;margin-bottom:4px;}
.editor-author{font-size:12px;color:var(--sub);margin-bottom:8px;}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px;}
.tag{font-size:11px;color:var(--sub);border:1px solid var(--line);padding:1px 8px;border-radius:10px;}
.editor-note{font-size:13px;color:#c8cbd0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.editor-foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:12px;color:var(--sub);}
.btn-shelf{
  font-size:12.5px;color:var(--orange);border:1px solid var(--orange);
  background:transparent;padding:5px 14px;border-radius:16px;cursor:pointer;transition:all .2s;
}
.btn-shelf:hover,.btn-shelf.followed{background:rgba(67,199,125,.18);color:var(--green);border-color:var(--green);}
.editor-comment{font-size:11.5px;color:var(--sub);margin-top:10px;border-top:1px solid var(--line);padding-top:8px;}

/* hot scroll */
.scroll-row{display:flex;gap:16px;overflow-x:auto;padding-bottom:10px;scrollbar-width:thin;}
.scroll-row::-webkit-scrollbar{height:6px;}
.scroll-row::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px;}
.scroll-card{flex:0 0 168px;}
.scroll-card .cover{aspect-ratio:3/4;border-radius:8px;}
.rank-badge{
  position:absolute;left:8px;top:8px;background:rgba(0,0,0,.7);color:var(--orange);
  font-size:12px;font-weight:800;padding:1px 8px;border-radius:8px;
}
.scroll-body{padding:10px 2px 0;}
.scroll-title{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.scroll-meta{font-size:11.5px;color:var(--sub);margin-top:2px;}
.heat-bar{height:4px;background:var(--line);border-radius:2px;margin-top:6px;overflow:hidden;}
.heat-fill{height:100%;background:linear-gradient(90deg,var(--orange),#ff9b6b);border-radius:2px;}

/* new releases */
.new-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.new-card .cover{aspect-ratio:3/4;}
.new-body{padding:12px;}
.new-title{font-size:14px;font-weight:700;margin-bottom:3px;}
.new-meta{font-size:11.5px;color:var(--sub);margin-bottom:8px;}
.new-foot{display:flex;align-items:center;justify-content:space-between;}
.btn-small{
  font-size:12px;background:var(--orange);color:#fff;border:none;
  padding:4px 12px;border-radius:14px;cursor:pointer;transition:opacity .2s;
}
.btn-small:hover{opacity:.85;}

/* completed list */
.done-list{display:flex;flex-direction:column;gap:12px;}
.done-item{
  display:flex;gap:16px;background:var(--panel);border-radius:var(--radius);
  padding:14px;transition:background .2s;align-items:center;
}
.done-item:hover{background:var(--hover);}
.done-cover{width:80px;height:106px;border-radius:6px;overflow:hidden;flex-shrink:0;background:var(--card);}
.done-cover img{width:100%;height:100%;object-fit:cover;}
.done-main{flex:1;min-width:0;}
.done-title{font-size:15px;font-weight:700;}
.done-meta{font-size:12px;color:var(--sub);margin:2px 0 6px;}
.done-desc{font-size:12.5px;color:#c2c6cc;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.done-side{text-align:right;flex-shrink:0;font-size:12px;color:var(--sub);}
.done-side .btn-ghost{padding:6px 16px;font-size:12.5px;margin-top:6px;}

/* categories */
.cat-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.cat-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  padding:8px 18px;font-size:13.5px;transition:border-color .2s,background .2s;position:relative;
}
.cat-tag:hover{border-color:var(--orange);background:var(--hover);}
.cat-tag em{font-style:normal;color:var(--sub);font-size:11.5px;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;}
.step-card{background:var(--card);border-radius:var(--radius);padding:22px;position:relative;}
.step-num{font-size:26px;font-weight:800;color:var(--orange);opacity:.9;line-height:1;}
.step-title{font-size:15.5px;font-weight:700;margin:10px 0 8px;}
.step-desc{font-size:12.5px;color:var(--sub);line-height:1.65;}
.step-arrow{position:absolute;right:-13px;top:50%;transform:translateY(-50%);color:var(--line);font-size:18px;}

/* guide */
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.guide-panel{background:var(--panel);border-radius:var(--radius);padding:24px;}
.guide-panel h3{font-size:16px;margin-bottom:14px;padding-left:10px;border-left:3px solid var(--orange);}
.guide-list li{font-size:13px;color:#c8cbd0;margin-bottom:12px;padding-left:14px;position:relative;}
.guide-list li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--orange);}
.mock-search{
  background:var(--card);border-radius:8px;padding:10px 14px;
  display:flex;align-items:center;gap:8px;color:var(--sub);font-size:13px;margin-top:6px;
}
.mock-results{margin-top:10px;display:flex;flex-direction:column;gap:8px;}
.mock-result{
  display:flex;gap:10px;align-items:center;background:var(--card);
  border-radius:8px;padding:8px;
}
.mock-result img{width:34px;height:44px;object-fit:cover;border-radius:4px;}
.mock-result span{font-size:12.5px;}

/* download & lines */
.dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px;}
.dl-card{background:var(--card);border-radius:var(--radius);padding:18px;}
.dl-card h3{font-size:14.5px;margin-bottom:8px;color:var(--orange);}
.dl-card p{font-size:12.5px;color:var(--sub);}
.line-panel{
  display:grid;grid-template-columns:1.4fr 1fr;gap:22px;align-items:start;
}
.line-table{width:100%;border-collapse:collapse;font-size:13px;background:var(--panel);border-radius:var(--radius);overflow:hidden;}
.line-table th,.line-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.line-table th{color:var(--sub);font-weight:600;font-size:12.5px;background:var(--card);}
.line-table td{color:#d6d8dc;}
.line-table tr:last-child td{border-bottom:none;}
.state{font-size:12px;white-space:nowrap;}
.state.g{color:var(--green);}
.state.y{color:#E8B44A;}
.mock-dropdown{background:var(--card);border-radius:var(--radius);padding:16px;border:1px solid var(--line);}
.mock-dropdown .current{font-size:13px;color:var(--sub);margin-bottom:10px;}
.mock-dropdown .current b{color:var(--text);}
.mock-item{background:var(--panel);border-radius:8px;padding:10px 14px;font-size:13px;margin-bottom:6px;display:flex;justify-content:space-between;}
.mock-item.active{border:1px solid var(--orange);color:var(--orange);}

/* reader features */
.reader-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.reader-card{background:var(--panel);border-radius:var(--radius);padding:22px;}
.reader-icon{font-size:24px;margin-bottom:10px;}
.reader-card h3{font-size:14.5px;margin-bottom:6px;}
.reader-card p{font-size:12.5px;color:var(--sub);}

/* ranking */
.rank-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rank-col{background:var(--panel);border-radius:var(--radius);padding:20px;}
.rank-col h3{font-size:15px;margin-bottom:12px;color:var(--orange);}
.rank-line{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line);font-size:13px;gap:10px;}
.rank-line:last-child{border-bottom:none;}
.rank-line .name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.rank-line .val{font-size:12px;color:var(--sub);flex-shrink:0;}
.rank-line .up{color:var(--green);}
.rank-line .down{color:#E05A5A;}
.rank-foot{font-size:12.5px;color:var(--blue);text-align:right;padding-top:10px;}

/* calendar */
.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;}
.cal-day{background:var(--card);border-radius:10px;padding:12px;min-height:150px;}
.cal-day.today{border:1px solid var(--orange);}
.cal-head{font-size:13px;font-weight:700;margin-bottom:4px;display:flex;justify-content:space-between;align-items:center;}
.cal-head em{font-style:normal;font-size:11px;color:var(--sub);font-weight:400;}
.cal-item{font-size:11.5px;color:#c2c6cc;margin-top:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.cal-item.mine{color:var(--orange);}
.cal-note{font-size:12px;color:var(--sub);margin-top:14px;text-align:center;}

/* community */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px;}
.stat-card{background:var(--card);border-radius:var(--radius);padding:20px;text-align:center;}
.stat-num{font-size:22px;font-weight:800;color:var(--orange);}
.stat-label{font-size:12.5px;color:var(--sub);margin-top:2px;}
.community-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.post-list li{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13.5px;}
.post-list li:last-child{border-bottom:none;}
.post-tag{font-size:11px;color:var(--orange);border:1px solid rgba(255,107,53,.4);border-radius:10px;padding:1px 8px;margin-left:8px;white-space:nowrap;}
.post-reply{font-size:12px;color:var(--sub);flex-shrink:0;}
.review{background:var(--panel);border-radius:var(--radius);padding:16px;margin-bottom:12px;}
.review-head{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--card);display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--orange);flex-shrink:0;}
.review-name{font-size:13px;font-weight:600;}
.review-score{font-size:12px;color:var(--orange);}
.review-text{font-size:13px;color:#c8cbd0;}
.review-book{font-size:11.5px;color:var(--sub);margin-top:6px;}

/* faq */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:10px;}
.faq-item{background:var(--panel);border-radius:10px;overflow:hidden;}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;
  background:none;border:none;color:var(--text);font-size:14px;font-weight:600;
  padding:16px 20px;cursor:pointer;text-align:left;font-family:inherit;
}
.faq-q span{color:var(--orange);transition:transform .2s;}
.faq-item.open .faq-q span{transform:rotate(45deg);}
.faq-a{display:none;padding:0 20px 16px;font-size:13px;color:var(--sub);}
.faq-item.open .faq-a{display:block;}
.faq-more{text-align:center;margin-top:20px;font-size:13px;color:var(--blue);}

/* CTA download */
.cta-download{
  background:linear-gradient(120deg,#282C31,#1F2226);
  border:1px solid var(--line);border-radius:16px;padding:36px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-download h2{font-size:22px;margin-bottom:8px;}
.cta-download p{font-size:13.5px;color:var(--sub);}
.btn-download{
  display:inline-block;background:var(--orange);color:#fff;font-size:15px;font-weight:600;
  padding:13px 34px;border-radius:26px;transition:transform .2s,opacity .2s;white-space:nowrap;
}
.btn-download:hover{transform:translateY(-2px);opacity:.9;}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--panel);padding:40px 0 24px;font-size:12.5px;color:var(--sub);}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;margin-bottom:26px;}
.footer-col h4{font-size:13px;color:var(--text);margin-bottom:10px;font-weight:600;}
.footer-col li{margin-bottom:7px;}
.footer-col a:hover{color:var(--orange);}
.footer-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12px;}
.footer-bottom a{color:var(--sub);}
.footer-bottom a:hover{color:var(--orange);}

/* responsive */
@media (max-width:1024px){
  .main-nav{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .quick-grid{grid-template-columns:repeat(3,1fr);}
  .editor-grid{grid-template-columns:repeat(2,1fr);}
  .new-grid{grid-template-columns:repeat(3,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step-arrow{display:none;}
  .guide-grid{grid-template-columns:1fr;}
  .dl-grid{grid-template-columns:repeat(2,1fr);}
  .line-panel{grid-template-columns:1fr;}
  .reader-grid{grid-template-columns:repeat(2,1fr);}
  .rank-cols{grid-template-columns:1fr;}
  .calendar{grid-template-columns:repeat(4,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .community-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  section{padding:38px 0;}
  .nav-wrap{height:58px;gap:12px;padding:0 14px;}
  .brand-name{font-size:15px;}
  .search-box{display:none;}
  .line-status{font-size:12px;}
  .shelf-btn{display:none;}
  .hero{padding:20px 0 80px;}
  .slide-body{padding:24px 20px;min-height:340px;}
  .slide-title{font-size:22px;}
  .hot-list{margin-top:0;}
  .quick-grid{grid-template-columns:repeat(3,1fr);padding:10px;gap:8px;}
  .quick-card{padding:10px 8px;}
  .editor-grid,.new-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
  .done-item{flex-wrap:wrap;}
  .done-side{text-align:left;width:100%;display:flex;align-items:center;justify-content:space-between;}
  .steps{grid-template-columns:1fr;}
  .dl-grid,.reader-grid{grid-template-columns:1fr;}
  .calendar{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .cta-download{padding:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section-title{font-size:18px;}
  .line-table{font-size:12px;}
  .line-table th,.line-table td{padding:9px 8px;}
}