/* =========================================================
   batoto漫画 · 站点主样式
   风格：清爽「纸感 + 分镜」漫画阅读调性（浅色主题）
   ========================================================= */
:root{
  --brand:#6C4EFF;
  --brand-d:#5334e0;
  --brand-soft:#EFEBFF;
  --accent:#FF6B4A;
  --accent-soft:#FFEDE7;
  --gold:#FFB300;

  --ink:#1F1B2E;
  --ink-2:#3B3552;
  --muted:#6B6580;
  --muted-2:#8B85A0;

  --paper:#FFFBF7;
  --card:#FFFFFF;
  --line:#ECE7F5;
  --line-2:#F4F1FA;

  --ok:#12B886;

  --r-sm:10px;
  --r:16px;
  --r-lg:22px;
  --r-xl:30px;

  --sh-sm:0 2px 10px rgba(31,27,46,.05);
  --sh:0 10px 30px rgba(31,27,46,.08);
  --sh-lg:0 24px 60px rgba(83,52,224,.16);

  --wrap:1180px;
  --head:70px;

  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,"Noto Sans SC",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--paper);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;color:var(--ink)}
p{margin:0}
button{font-family:inherit}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:800;font-size:16px;line-height:1;
  padding:15px 30px;border-radius:999px;border:0;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
  white-space:nowrap;
}
.btn i{font-size:15px}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  box-shadow:0 12px 26px rgba(108,78,255,.32);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,107,74,.36)}
.btn-ghost{
  color:var(--brand);background:#fff;border:2px solid var(--brand-soft);
  box-shadow:var(--sh-sm);
}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px)}
.btn-lg{padding:18px 40px;font-size:17px}
.btn-sm{padding:11px 22px;font-size:14px}

/* ---------- 顶部导航 ---------- */
.head{
  position:sticky;top:0;z-index:60;
  background:rgba(255,251,247,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-in{
  height:var(--head);display:flex;align-items:center;gap:26px;
  width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand img{width:42px;height:42px;border-radius:12px;box-shadow:0 6px 16px rgba(108,78,255,.3)}
.brand-name{font-size:21px;font-weight:900;letter-spacing:.2px}
.brand-name b{background:linear-gradient(120deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{
  padding:9px 15px;border-radius:999px;font-weight:700;font-size:15px;color:var(--ink-2);
  transition:background .16s,color .16s;
}
.nav a:hover{background:var(--brand-soft);color:var(--brand)}
.nav a.on{background:var(--brand-soft);color:var(--brand)}
.head .btn{margin-left:14px}
.burger{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);border:0;font-size:19px;cursor:pointer;
}

/* 移动端抽屉 */
.drawer{
  display:none;flex-direction:column;gap:2px;padding:10px 18px 20px;
  border-top:1px solid var(--line);background:#fff;
}
.drawer a{padding:13px 14px;border-radius:12px;font-weight:700;color:var(--ink-2)}
.drawer a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer .btn{margin-top:8px}
.drawer.open{display:flex}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(680px 420px at 88% 6%,rgba(255,107,74,.16),transparent 62%),
    radial-gradient(760px 460px at 6% 12%,rgba(108,78,255,.18),transparent 60%),
    var(--paper);
  padding:70px 0 76px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(108,78,255,.14) 1px,transparent 1.4px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 78%);
          mask-image:linear-gradient(180deg,#000,transparent 78%);
}
.hero-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;
  gap:52px;align-items:center;
}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 16px;font-size:13.5px;font-weight:700;color:var(--brand);
  box-shadow:var(--sh-sm);margin-bottom:20px;
}
.tag i{color:var(--accent)}
.hero h1{font-size:clamp(30px,4vw,46px);letter-spacing:-.5px;margin-bottom:16px}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lead{font-size:17px;color:var(--muted);max-width:560px}
.hero-pts{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 28px}
.hero-pts span{
  display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);
  padding:8px 14px;border-radius:999px;font-size:14px;font-weight:700;color:var(--ink-2);
  box-shadow:var(--sh-sm);
}
.hero-pts i{color:var(--ok)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{display:flex;align-items:center;gap:9px;margin-top:18px;font-size:13.5px;color:var(--muted)}
.hero-note i{color:var(--ok)}

/* 手机模型 */
.phone-wrap{display:flex;justify-content:center;position:relative}
.phone{
  position:relative;width:270px;border-radius:38px;padding:12px;
  background:linear-gradient(160deg,#2a2540,#15121f);
  box-shadow:var(--sh-lg),0 0 0 1px rgba(0,0,0,.05);
}
.phone::before{
  content:"";position:absolute;top:12px;left:50%;transform:translateX(-50%);
  width:88px;height:20px;background:#15121f;border-radius:0 0 14px 14px;z-index:3;
}
.phone img{border-radius:28px;width:100%}
.phone-f{position:absolute;border-radius:16px;background:#fff;box-shadow:var(--sh);
  padding:10px 14px;display:flex;align-items:center;gap:9px;font-size:13.5px;font-weight:800;z-index:4}
.phone-f i{font-size:16px}
.pf-1{top:38px;left:-24px;color:var(--brand)}
.pf-1 i{color:var(--brand)}
.pf-2{bottom:80px;right:-26px;color:var(--accent)}
.pf-2 i{color:var(--accent)}
.pf-3{bottom:16px;left:-14px;color:var(--ok)}
.pf-3 i{color:var(--ok)}

/* ---------- 数据条 ---------- */
.stats{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-in{
  display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:30px 0;
}
.stat{text-align:center;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:14%;height:72%;width:1px;background:var(--line)}
.stat b{display:block;font-size:clamp(24px,3vw,34px);font-weight:900;
  background:linear-gradient(120deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:14px;color:var(--muted);font-weight:700}

/* ---------- 区块通用 ---------- */
.sec{padding:74px 0}
.sec.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:1px;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.kicker::before,.kicker::after{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;opacity:.5}
.sec-head h2{font-size:clamp(24px,3.2vw,34px);letter-spacing:-.4px;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:16px}

/* ---------- 卖点卡片 ---------- */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px;box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--sh);border-color:var(--brand-soft)}
.card .ic{
  width:52px;height:52px;border-radius:15px;display:flex;align-items:center;justify-content:center;
  font-size:22px;margin-bottom:16px;
  background:var(--brand-soft);color:var(--brand);
}
.card:nth-child(2n) .ic{background:var(--accent-soft);color:var(--accent)}
.card:nth-child(3n) .ic{background:#E7F7F1;color:var(--ok)}
.card h3{font-size:18.5px;margin-bottom:9px}
.card p{color:var(--muted);font-size:15px}

/* ---------- 截图画廊 ---------- */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.shot{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:14px;
  box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s;
}
.shot:hover{transform:translateY(-6px);box-shadow:var(--sh)}
.shot .ph{border-radius:14px;overflow:hidden;background:#12101c;padding:8px}
.shot .ph img{border-radius:10px;width:100%;height:auto;display:block}
.shot figcaption{padding:14px 6px 4px}
.shot b{display:block;font-size:16px;margin-bottom:3px}
.shot span{font-size:13.5px;color:var(--muted)}

/* ---------- 深度模块入口 ---------- */
.deep{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.deep-a{
  position:relative;display:flex;gap:20px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--sh-sm);transition:transform .2s,box-shadow .2s,border-color .2s;overflow:hidden;
}
.deep-a::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:130px;height:130px;border-radius:50%;
  background:var(--brand-soft);opacity:.55;transition:transform .3s;
}
.deep-a:hover{transform:translateY(-5px);box-shadow:var(--sh);border-color:var(--brand-soft)}
.deep-a:hover::after{transform:scale(1.22)}
.deep-a .di{
  position:relative;z-index:2;flex-shrink:0;width:54px;height:54px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;font-size:23px;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--accent));
}
.deep-a .db{position:relative;z-index:2}
.deep-a h3{font-size:19px;margin-bottom:8px}
.deep-a p{color:var(--muted);font-size:14.5px;margin-bottom:12px}
.deep-a .more{font-size:14px;font-weight:800;color:var(--brand);display:inline-flex;align-items:center;gap:7px}
.deep-a:hover .more i{transform:translateX(4px)}
.deep-a .more i{transition:transform .2s}

/* ---------- 用户评价 ---------- */
.revs{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rev{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-sm);
  display:flex;flex-direction:column;gap:14px;
}
.stars{color:var(--gold);font-size:14px;letter-spacing:2px}
.rev p{font-size:15px;color:var(--ink-2)}
.rev-u{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:8px;border-top:1px solid var(--line-2)}
.rev-a{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#fff;background:linear-gradient(135deg,var(--brand),var(--accent));font-size:16px}
.rev-u b{display:block;font-size:14.5px}
.rev-u span{font-size:12.5px;color:var(--muted-2)}

/* ---------- FAQ 手风琴 ---------- */
.faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.qi{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh-sm);transition:border-color .2s}
.qi.open{border-color:var(--brand-soft)}
.qh{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:19px 22px;background:none;border:0;cursor:pointer;font-size:16.5px;font-weight:800;color:var(--ink);
}
.qh .qn{flex-shrink:0;width:28px;height:28px;border-radius:9px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:900}
.qh .qi-c{margin-left:auto;color:var(--muted);transition:transform .25s;font-size:14px}
.qi.open .qh .qi-c{transform:rotate(180deg);color:var(--brand)}
.qb{max-height:0;overflow:hidden;transition:max-height .3s ease}
.qb-in{padding:0 22px 22px 64px;color:var(--muted);font-size:15px}
.qb-in a{color:var(--brand);font-weight:700;border-bottom:1px dashed var(--brand)}

/* ---------- 底部下载通道 ---------- */
.dl{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#5A38F0 0%,#7C4DFF 45%,#FF6B4A 100%);
  color:#fff;text-align:center;padding:66px 22px;border-radius:var(--r-xl);
  margin:0 auto;box-shadow:var(--sh-lg);
}
.dl::before{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1.5px);
  background-size:22px 22px;
}
.dl>*{position:relative;z-index:2}
.dl h2{color:#fff;font-size:clamp(24px,3.4vw,36px);margin-bottom:14px}
.dl p{color:rgba(255,255,255,.9);max-width:640px;margin:0 auto 28px;font-size:16px}
.dl .btn{background:#fff;color:var(--brand);box-shadow:0 16px 34px rgba(0,0,0,.2)}
.dl .btn:hover{transform:translateY(-3px)}
.dl-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:22px;margin-top:22px;font-size:14px;color:rgba(255,255,255,.92)}
.dl-meta span{display:inline-flex;align-items:center;gap:8px}

/* ---------- 页脚 ---------- */
.foot{background:#1B1830;color:#C9C4DE;padding:56px 0 26px;margin-top:74px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.foot h4{color:#fff;font-size:15.5px;margin-bottom:16px}
.foot p{font-size:14px;color:#A7A1C0;line-height:1.8}
.foot .brand-name{color:#fff;font-size:19px}
.foot .brand-name b{background:linear-gradient(120deg,#A78BFF,#FF9A7B);-webkit-background-clip:text;background-clip:text;color:transparent}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.foot-brand img{width:40px;height:40px;border-radius:12px}
.foot ul li{margin-bottom:11px}
.foot ul a{font-size:14px;color:#A7A1C0;transition:color .16s}
.foot ul a:hover{color:#fff}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px}
.foot-tags span{font-size:12.5px;background:rgba(255,255,255,.08);padding:5px 11px;border-radius:999px;color:#C9C4DE}
.disc{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8F89AB;line-height:1.9;
}
.copy{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;margin-top:16px;font-size:13px;color:#7E789A}

/* ---------- 内页 ---------- */
.page-head{
  background:
    radial-gradient(600px 320px at 90% 0%,rgba(255,107,74,.14),transparent 60%),
    radial-gradient(640px 360px at 4% 10%,rgba(108,78,255,.16),transparent 60%),
    var(--paper);
  padding:56px 0 40px;border-bottom:1px solid var(--line);
}
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.crumb a{color:var(--brand);font-weight:700}
.page-head h1{font-size:clamp(26px,3.6vw,40px);letter-spacing:-.4px;margin-bottom:14px}
.page-head .sub{color:var(--muted);font-size:16.5px;max-width:780px}
.page-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px;font-size:13.5px;color:var(--muted)}
.page-meta span{display:inline-flex;align-items:center;gap:8px}
.page-meta i{color:var(--brand)}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;padding:56px 0 0;align-items:start}
.article{min-width:0}
.article h2{
  font-size:24px;margin:44px 0 16px;padding-left:16px;position:relative;
}
.article h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--accent))}
.article h2:first-child{margin-top:0}
.article h3{font-size:18.5px;margin:26px 0 10px;color:var(--ink)}
.article p{margin-bottom:15px;color:var(--ink-2)}
.article ul.dot{margin:0 0 16px;padding-left:0}
.article ul.dot li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--ink-2)}
.article ul.dot li::before{content:"";position:absolute;left:6px;top:11px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--accent))}
.article a{color:var(--brand);font-weight:700;border-bottom:1px dashed rgba(108,78,255,.45)}
.article a:hover{color:var(--accent);border-color:var(--accent)}
.article strong{color:var(--ink)}

.steps{counter-reset:s;display:flex;flex-direction:column;gap:16px;margin:22px 0}
.step{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;box-shadow:var(--sh-sm)}
.step::before{
  counter-increment:s;content:counter(s);
  flex-shrink:0;width:40px;height:40px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-weight:900;color:#fff;font-size:17px;background:linear-gradient(135deg,var(--brand),var(--accent));
}
.step b{display:block;font-size:16.5px;margin-bottom:5px}
.step p{margin:0;color:var(--muted);font-size:14.5px}

.callout{
  background:linear-gradient(135deg,var(--brand-soft),#fff);border:1px solid var(--line);
  border-left:5px solid var(--brand);border-radius:var(--r);padding:20px 24px;margin:22px 0;
}
.callout b{display:block;margin-bottom:6px;color:var(--brand)}
.callout p{margin:0;color:var(--ink-2);font-size:14.5px}

.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:20px 0}
.mini{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--sh-sm)}
.mini h4{font-size:16.5px;margin-bottom:8px;display:flex;align-items:center;gap:9px}
.mini h4 i{color:var(--brand)}
.mini p{font-size:14.5px;color:var(--muted);margin:0}

/* 侧栏 */
.side{position:sticky;top:calc(var(--head) + 20px);display:flex;flex-direction:column;gap:20px}
.scard{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-sm)}
.scard h3{font-size:16.5px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.scard h3 i{color:var(--accent)}
.scard ul li{border-bottom:1px dashed var(--line);padding:11px 0}
.scard ul li:last-child{border-bottom:0}
.scard ul a{font-size:14.5px;color:var(--ink-2);font-weight:600;display:flex;gap:9px;align-items:flex-start}
.scard ul a:hover{color:var(--brand)}
.scard ul a i{color:var(--brand);margin-top:5px;font-size:12px}
.scard .btn{width:100%;margin-top:6px}
.scard .toc a{display:block;font-size:14.5px;color:var(--muted);padding:8px 0;border-bottom:1px dashed var(--line)}
.scard .toc a:last-child{border-bottom:0}
.scard .toc a:hover{color:var(--brand)}

/* 返回顶部 */
.top{
  position:fixed;right:24px;bottom:26px;width:48px;height:48px;border-radius:14px;border:0;cursor:pointer;
  background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-size:17px;
  box-shadow:var(--sh);opacity:0;visibility:hidden;transform:translateY(12px);transition:.25s;z-index:50;
}
.top.show{opacity:1;visibility:visible;transform:none}

/* 滚动显现（仅在 JS 可用时启用，避免无脚本时内容被隐藏） */
.js .rv{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.js .rv.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .hero-grid{gap:34px}
  .layout{grid-template-columns:1fr;gap:34px}
  .side{position:static}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .nav{display:none}
  .head .btn{display:none}
  .burger{display:flex;align-items:center;justify-content:center}
  .hero{padding:48px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero .lead{max-width:100%}
  .phone-wrap{order:2}
  .phone{width:250px}
  .pf-1{left:-8px}.pf-2{right:-8px}.pf-3{left:0}
  .stats-in{grid-template-columns:repeat(2,1fr);gap:22px 10px}
  .stat:nth-child(3)::before{display:none}
  .feat,.gal,.revs{grid-template-columns:repeat(2,1fr)}
  .deep{grid-template-columns:1fr}
}
@media(max-width:640px){
  body{font-size:15.5px}
  .sec{padding:56px 0}
  .feat,.gal,.revs,.grid2{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .dl{padding:48px 20px;border-radius:var(--r-lg)}
  .hero-cta .btn{width:100%}
  .phone-f{display:none}
  .qb-in{padding-left:22px}
  .step{flex-direction:column;gap:12px}
}