*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0f1115;
  --bg-soft:#171a21;
  --card:#1d212a;
  --line:#2a2f3a;
  --text:#e8eaf0;
  --muted:#9aa1b0;
  --accent:#ff5a5f;
  --accent-soft:#ff8a8d;
  --gold:#f5b942;
  --radius:16px;
}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.7;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none}

/* ============ 吸顶导航 ============ */
.nav-wrap{
  position:sticky;top:0;z-index:100;padding:12px 20px;
  transition:padding .3s ease, background .3s ease;
}
.nav-bar{
  max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;
  background:rgba(29,33,42,.9);border:1px solid var(--line);border-radius:999px;
  padding:8px 10px 8px 16px;transition:all .3s ease;
  backdrop-filter:blur(0px);
}
.nav-wrap.shrink{padding:8px 20px}
.nav-wrap.shrink .nav-bar{
  background:rgba(20,23,30,.75);backdrop-filter:blur(14px);
  border-color:rgba(255,255,255,.08);box-shadow:0 8px 28px rgba(0,0,0,.35);
  padding:6px 8px 6px 14px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;white-space:nowrap}
.brand img{height:34px;width:auto;border-radius:8px;transition:height .3s ease}
.nav-wrap.shrink .brand img{height:28px}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
.nav-links a{
  font-size:14px;color:var(--muted);padding:7px 13px;border-radius:999px;
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:#fff;background:rgba(255,90,95,.16);font-weight:600}
.nav-cta{
  display:flex;align-items:center;gap:10px;
}
.btn-download{
  display:inline-block;background:var(--accent);color:#fff;font-weight:600;
  padding:9px 20px;border-radius:999px;font-size:14px;white-space:nowrap;
  transition:transform .2s, box-shadow .2s;
}
.btn-download:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(255,90,95,.35)}
.hamburger{
  display:none;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.06);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.hamburger span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;transition:.25s}
.hamburger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  display:none;position:fixed;top:0;left:0;right:0;bottom:0;z-index:99;
  background:rgba(10,12,16,.96);backdrop-filter:blur(10px);padding:90px 24px 24px;
}
.drawer.show{display:block}
.drawer a{
  display:block;padding:16px 8px;font-size:17px;color:var(--muted);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer a.active{color:var(--accent);font-weight:600}
.drawer .btn-download{display:block;text-align:center;margin-top:24px;padding:14px}

/* ============ 通用区块 ============ */
.section{max-width:1180px;margin:0 auto;padding:76px 20px}
.section-head{margin-bottom:34px}
.section-head h2{font-size:28px;font-weight:800;letter-spacing:.5px}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px}
.badge{display:inline-block;font-size:12px;color:var(--accent-soft);background:rgba(255,90,95,.12);padding:3px 12px;border-radius:999px;margin-bottom:12px;font-weight:600}

/* ============ Hero ============ */
.hero{
  max-width:1180px;margin:0 auto;padding:40px 20px 70px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.hero-text h1{font-size:44px;line-height:1.2;font-weight:900;letter-spacing:1px}
.hero-text h1 span{color:var(--accent)}
.hero-slogan{font-size:19px;color:var(--gold);font-weight:600;margin-top:16px}
.hero-desc{color:var(--muted);font-size:15px;margin-top:12px;max-width:480px}
.trust-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.trust-list li{
  font-size:13px;color:var(--text);background:var(--card);border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;display:flex;align-items:center;gap:6px;
}
.trust-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.btn-ghost{
  display:inline-block;padding:11px 24px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid var(--line);color:var(--text);transition:.2s;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-soft)}

.hero-visual{position:relative;height:520px;display:flex;align-items:center;justify-content:center;perspective:1200px}
.collage{position:absolute;inset:0;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;opacity:.5;transform:scale(1.05)}
.collage img{width:100%;height:100%;object-fit:cover;border-radius:10px;filter:blur(1px) brightness(.6)}
.collage.theme-b img{filter:blur(1px) brightness(.6) hue-rotate(18deg)}
.phone-mock{
  position:relative;z-index:2;width:230px;height:470px;background:#000;
  border-radius:34px;border:8px solid #2a2f3a;box-shadow:0 30px 60px rgba(0,0,0,.6);
  transform:rotateY(-14deg) rotateX(4deg) rotateZ(2deg);
  overflow:hidden;
}
.phone-screen{position:absolute;inset:0;overflow:hidden;border-radius:26px;background:#181b22}
.strip{animation:scrollUp 22s linear infinite}
.strip img{width:100%;display:block}
@keyframes scrollUp{0%{transform:translateY(0)}100%{transform:translateY(-50%)}}

/* ============ 本周主推 ============ */
.weekly-grid{display:grid;grid-template-columns:7fr 5fr;gap:18px}
.big-card{
  position:relative;border-radius:var(--radius);overflow:hidden;background:var(--card);
  border:1px solid var(--line);min-height:460px;display:flex;flex-direction:column;
}
.big-card .cover{position:relative;flex:1;overflow:hidden}
.big-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.big-card:hover .cover img{transform:scale(1.05)}
.card-overlay{
  position:absolute;left:0;right:0;bottom:0;padding:20px;
  background:linear-gradient(transparent,rgba(10,12,16,.95));
}
.card-overlay .tag{font-size:12px;color:var(--gold);font-weight:600}
.card-overlay h3{font-size:22px;font-weight:800;margin:4px 0}
.card-overlay .hook{font-size:13px;color:var(--muted)}
.card-meta{display:flex;align-items:center;justify-content:space-between;margin-top:14px}
.card-meta .status{font-size:12px;color:var(--accent-soft)}
.follow-btn{
  font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;
  background:var(--accent);color:#fff;transition:.2s;
}
.follow-btn.done{background:rgba(255,255,255,.12);color:var(--muted)}
.small-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.small-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;display:flex;flex-direction:column;
}
.small-card .cover{position:relative;aspect-ratio:3/4;overflow:hidden}
.small-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.small-card:hover .cover img{transform:scale(1.06)}
.chapter-chip{
  position:absolute;left:8px;bottom:8px;font-size:11px;background:rgba(10,12,16,.82);
  padding:2px 8px;border-radius:6px;color:var(--gold);opacity:0;transform:translateY(4px);transition:.25s;
}
.small-card:hover .chapter-chip{opacity:1;transform:translateY(0)}
.small-card .info{padding:9px 10px 11px}
.small-card .info h4{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.small-card .info p{font-size:11px;color:var(--muted);margin-top:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ============ 题材矩阵 ============ */
.genre-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.genre-block{
  background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  text-align:left;transition:.25s;
}
.genre-block:hover{border-color:var(--accent)}
.genre-thumbs{display:grid;grid-template-columns:1fr 1fr;gap:2px;height:96px;overflow:hidden}
.genre-thumbs img{width:100%;height:100%;object-fit:cover}
.genre-info{padding:12px 14px 14px}
.genre-info h3{font-size:15px;font-weight:700}
.genre-info p{font-size:12px;color:var(--muted);margin-top:2px}
.genre-expand{
  grid-column:1/-1;display:none;background:var(--bg-soft);border:1px solid var(--line);
  border-radius:14px;padding:20px;position:relative;
}
.genre-expand.show{display:block}
.genre-expand h4{font-size:16px;margin-bottom:14px;font-weight:700}
.expand-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.expand-item{background:var(--card);border-radius:10px;overflow:hidden}
.expand-item img{width:100%;aspect-ratio:3/4;object-fit:cover}
.expand-item p{font-size:12px;padding:8px;font-weight:600}
.see-all{position:absolute;right:20px;top:18px;font-size:13px;color:var(--accent-soft);font-weight:600}

/* ============ 更新日历 ============ */
.calendar-row{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
.day-col{
  background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 10px;min-height:210px;
}
.day-col.today{border-color:var(--accent);background:rgba(255,90,95,.07)}
.day-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px}
.day-head strong{font-size:14px}
.day-head span{font-size:11px;color:var(--muted)}
.slot-label{font-size:11px;color:var(--gold);margin:8px 0 4px;font-weight:600}
.day-col .work{display:flex;align-items:center;justify-content:space-between;gap:4px;margin-bottom:4px}
.day-col .work span{font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.day-col .work button{
  font-size:10px;color:var(--accent-soft);border:1px solid rgba(255,90,95,.35);
  border-radius:999px;padding:1px 7px;flex-shrink:0;transition:.2s;
}
.day-col .work button.done{color:var(--muted);border-color:var(--line)}

/* ============ 榜单 ============ */
.tab-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.tab-btn{
  font-size:14px;padding:8px 20px;border-radius:999px;border:1px solid var(--line);
  color:var(--muted);transition:.2s;
}
.tab-btn.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.rank-list{display:grid;gap:10px}
.rank-item{
  display:flex;align-items:center;gap:16px;background:var(--card);border:1px solid var(--line);
  border-radius:12px;padding:10px 18px 10px 14px;animation:fadeUp .35s ease both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.rank-num{font-family:"SF Mono",Consolas,monospace;font-size:30px;font-weight:700;color:var(--muted);min-width:44px;text-align:center;letter-spacing:-1px}
.rank-item:nth-child(-n+3) .rank-num{color:var(--gold)}
.rank-item img{width:46px;height:62px;object-fit:cover;border-radius:6px;flex-shrink:0}
.rank-text{flex:1;min-width:0}
.rank-text h3{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-text p{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-score{font-size:13px;font-weight:700;color:var(--accent-soft);white-space:nowrap}

/* ============ 阅读器体验 ============ */
.reader-layout{display:grid;grid-template-columns:1fr 300px;gap:48px;align-items:center}
.feature-list{display:grid;gap:8px}
.feature-item{
  display:flex;gap:14px;padding:14px 16px;border-radius:12px;text-align:left;
  border:1px solid transparent;transition:.22s;
}
.feature-item:hover,.feature-item.active{background:var(--card);border-color:var(--line)}
.feature-icon{
  width:40px;height:40px;border-radius:10px;background:rgba(255,90,95,.13);
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.feature-item h3{font-size:15px;font-weight:700}
.feature-item p{font-size:12.5px;color:var(--muted);margin-top:2px}
.reader-phone{
  width:230px;height:440px;background:#000;border-radius:32px;border:8px solid #2a2f3a;
  justify-self:center;overflow:hidden;position:relative;box-shadow:0 24px 50px rgba(0,0,0,.55);
}
.reader-screen{position:absolute;inset:0;overflow:hidden;border-radius:24px;background:#13161c}
.reader-strip{animation:scrollUp 18s linear infinite}
.reader-strip img{width:100%;display:block}
.reader-strip.paused{animation-play-state:paused}
.reader-screen.night{background:#0a0a10;filter:sepia(.35) brightness(.62) hue-rotate(-12deg)}
.reader-screen.zoom .reader-strip{transform:scale(1.35);animation-play-state:paused}

/* ============ 书架 ============ */
.shelf-card{
  background:linear-gradient(160deg,#1e222c,#151820);
  border:1px solid var(--line);border-radius:20px;padding:30px;position:relative;
}
.shelf-books{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.shelf-book img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:8px}
.shelf-book .bar{height:4px;border-radius:4px;background:rgba(255,255,255,.1);margin-top:8px;overflow:hidden}
.shelf-book .bar i{display:block;height:100%;background:var(--accent);border-radius:4px}
.shelf-book p{font-size:11px;color:var(--muted);margin-top:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.float-tag{
  position:absolute;font-size:12px;background:var(--card);border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;box-shadow:0 6px 20px rgba(0,0,0,.4);color:var(--text);
}
.float-tag.t1{top:-14px;right:12%}
.float-tag.t2{bottom:-12px;left:8%}
.float-tag.t3{bottom:-12px;right:14%}

/* ============ 多端下载 ============ */
.download-layout{display:grid;grid-template-columns:1fr 210px;gap:26px;align-items:start}
.dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.dl-btn{
  display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);
  border-radius:12px;padding:14px;transition:.2s;
}
.dl-btn:hover{border-color:var(--accent);transform:translateY(-2px)}
.dl-icon{font-size:20px;width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.05);border-radius:8px;flex-shrink:0}
.dl-btn strong{display:block;font-size:13.5px}
.dl-btn small{font-size:11px;color:var(--muted)}
.qr-box{
  background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center;
}
.qr-fake{
  width:100%;aspect-ratio:1;border-radius:8px;margin-bottom:10px;
  background:
    repeating-linear-gradient(0deg,#e8eaf0 0 4px,transparent 4px 8px),
    repeating-linear-gradient(90deg,#e8eaf0 0 4px,transparent 4px 8px);
  background-color:#fff;
}
.qr-box p{font-size:11.5px;color:var(--muted)}
.install-tips{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.install-tips div{font-size:13px;color:var(--muted)}
.install-tips strong{display:block;color:var(--text);font-size:14px;margin-bottom:2px}
.faq{margin-top:30px;display:grid;gap:10px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:15px 18px;font-size:14.5px;font-weight:600;text-align:left;
}
.faq-q i{font-style:normal;color:var(--accent-soft);transition:transform .25s;display:inline-block}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 18px 16px;font-size:13px;color:var(--muted)}

/* ============ 品牌故事 ============ */
.brand-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:start}
.brand-story p{font-size:14.5px;color:var(--muted);margin-bottom:16px;max-width:560px}
.brand-story p strong{color:var(--text)}
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat-box{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.stat-box b{display:block;font-size:26px;font-weight:800;color:var(--gold)}
.stat-box span{font-size:12.5px;color:var(--muted)}

/* ============ 页脚 ============ */
footer{border-top:1px solid var(--line);margin-top:20px;padding:52px 20px 26px}
.foot-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:14px}
.foot-col a,.foot-col p{display:block;font-size:12.5px;color:var(--muted);margin-bottom:9px;line-height:1.6}
.foot-col a:hover{color:var(--accent-soft)}
.foot-bottom{
  max-width:1180px;margin:36px auto 0;padding-top:20px;border-top:1px solid var(--line);
  font-size:11.5px;color:#6b7180;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
}
.foot-bottom a{color:#6b7180}
.foot-bottom a:hover{color:var(--muted)}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .hero{grid-template-columns:1fr;gap:20px;text-align:left}
  .hero-text h1{font-size:36px}
  .hero-visual{height:440px}
  .weekly-grid{grid-template-columns:1fr}
  .genre-grid{grid-template-columns:repeat(3,1fr)}
  .expand-list{grid-template-columns:repeat(4,1fr)}
  .reader-layout{grid-template-columns:1fr;gap:30px}
  .download-layout{grid-template-columns:1fr}
  .qr-box{max-width:200px}
  .brand-layout{grid-template-columns:1fr;gap:30px}
  .calendar-row{grid-template-columns:repeat(4,1fr)}
  .shelf-books{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{display:none}
  .nav-cta .btn-download{display:none}
  .hamburger{display:flex}
  .hero{padding-top:20px;padding-bottom:40px}
  .hero-text h1{font-size:30px}
  .hero-slogan{font-size:16px}
  .hero-visual{height:380px}
  .phone-mock{width:180px;height:370px}
  .small-grid{grid-template-columns:1fr 1fr}
  .genre-grid{grid-template-columns:repeat(2,1fr)}
  .expand-list{grid-template-columns:repeat(2,1fr)}
  .calendar-row{grid-template-columns:1fr 1fr}
  .dl-grid{grid-template-columns:1fr 1fr}
  .install-tips{grid-template-columns:1fr 1fr}
  .rank-item{padding:8px 10px;gap:10px}
  .rank-num{font-size:22px;min-width:32px}
  .rank-item img{width:36px;height:48px}
  .stats-grid{gap:10px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
  .section{padding:52px 16px}
  .section-head h2{font-size:22px}
  .float-tag{display:none}
}