/* ============ 178漫画 单页站 · 年轻化紫粉主题 · 移动端优先 ============ */
:root{
  --bg:#F6F4FF;
  --bg2:#EFECFF;
  --surface:#FFFFFF;
  --primary:#7B61FF;
  --primary-d:#5B3FE0;
  --primary-soft:#ECE6FF;
  --accent:#FF4D8D;
  --ink:#2A2350;
  --muted:#6B6486;
  --line:#E7E2FB;
  --gold:#FFB020;
  --grad:linear-gradient(135deg,#7B61FF 0%,#FF4D8D 100%);
  --shadow:0 12px 32px rgba(123,97,255,.16);
  --shadow-sm:0 4px 14px rgba(123,97,255,.12);
  --radius:20px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  padding-bottom:calc(76px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1080px;margin:0 auto;padding:0 16px}

/* ---------- 顶部导航 ---------- */
.topbar{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:56px}
.logo{display:flex;align-items:center;gap:9px;font-weight:900;font-size:18px;letter-spacing:.5px;padding:5px 6px;margin-left:-6px;border-radius:12px}
.logo-ico{width:34px;height:34px;border-radius:9px;object-fit:cover;display:block;box-shadow:var(--shadow-sm)}
.logo .kw{color:var(--primary)}
.btn-header{
  background:var(--grad);color:#fff;font-size:14px;font-weight:800;
  padding:11px 22px;border-radius:999px;min-height:44px;display:inline-flex;align-items:center;
  white-space:nowrap;flex:none;box-shadow:var(--shadow-sm);
}
.btn-header:active{transform:scale(.97)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--primary-soft) 0%,var(--bg2) 55%,var(--bg) 100%);
  padding:30px 0 36px;
}
.blob{position:absolute;border-radius:50%;filter:blur(46px);opacity:.5;z-index:0;pointer-events:none}
.blob-a{width:240px;height:240px;background:#B69BFF;top:-70px;right:-60px}
.blob-b{width:200px;height:200px;background:#FF9AC4;bottom:-80px;left:-50px}
.hero .container{position:relative;z-index:1;display:flex;flex-direction:column;gap:32px;align-items:center;text-align:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;background:#fff;color:var(--primary-d);
  font-size:12.5px;font-weight:700;padding:6px 13px;border-radius:999px;border:1px solid var(--line);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero-title{font-size:40px;font-weight:900;line-height:1.1;letter-spacing:.5px}
.hero-title .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--accent)}
.hero-sub{font-size:16px;color:var(--primary-d);font-weight:700}
.hero-desc{font-size:14px;color:var(--muted);max-width:340px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:22px}
.btn-primary{
  background:var(--grad);color:#fff;font-weight:800;font-size:16px;
  padding:14px 30px;border-radius:999px;min-height:48px;display:inline-flex;align-items:center;gap:8px;
  box-shadow:var(--shadow);white-space:nowrap;
}
.btn-primary:active{transform:scale(.97)}
.btn-ghost{
  background:#fff;color:var(--primary-d);font-weight:800;font-size:15px;
  padding:14px 26px;border-radius:999px;min-height:48px;display:inline-flex;align-items:center;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.btn-ghost:active{transform:scale(.97)}
.hero-meta{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;font-size:13px;color:var(--muted);margin-top:4px}
.hero-meta b{color:var(--ink)}
.stars{color:var(--gold);font-weight:800}
.stars .num{color:var(--primary-d);margin-left:4px}
.phone{
  width:230px;border:9px solid #fff;border-radius:34px;box-shadow:var(--shadow);overflow:hidden;background:#fff;
  aspect-ratio:9/16;
}
.phone img{width:100%;height:100%;object-fit:cover;object-position:center top}

/* ---------- 通用 section ---------- */
.section{padding:48px 0}
.section-alt{background:var(--bg2)}
.sec-head{text-align:center;margin-bottom:26px}
.sec-title{font-size:26px;font-weight:900;letter-spacing:.5px}
.sec-title .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--accent)}
.sec-sub{font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- 核心功能 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.feat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm);transition:transform .2s ease}
.feat-card:active{transform:translateY(2px)}
.feat-ico{font-size:30px;margin-bottom:8px}
.feat-card h3{font-size:16px;margin-bottom:5px}
.feat-card p{font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 真实阅读界面（横向画廊） ---------- */
.shots{
  display:flex;gap:12px;overflow-x:auto;padding:4px 16px 12px;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;max-width:1080px;margin:0 auto;
}
.shot{flex:0 0 auto;width:200px;scroll-snap-align:start;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);background:#fff}
.shot img{width:100%;height:auto;display:block}

/* ---------- 题材标签 ---------- */
.tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tag{background:var(--surface);border:1px solid var(--line);color:var(--primary-d);font-weight:700;font-size:14px;padding:8px 18px;border-radius:999px;box-shadow:var(--shadow-sm)}
.tags-note{margin:18px auto 0;max-width:680px;text-align:center;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- 用户评价 ---------- */
.review-grid{display:grid;grid-template-columns:1fr;gap:14px}
.review-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}
.r-stars{color:var(--gold);font-size:15px;margin-bottom:6px}
.review-card p{font-size:14px;line-height:1.7;margin-bottom:8px}
.r-name{font-size:13px;color:var(--muted);font-weight:700}

/* ---------- UGC ---------- */
.ugc{display:flex;flex-direction:column;gap:10px;max-width:560px;margin:0 auto}
.ugc-item{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:10px 14px;box-shadow:var(--shadow-sm);animation:fade .4s ease}
.u-ava{width:34px;height:34px;border-radius:50%;color:#fff;font-weight:800;display:inline-flex;align-items:center;justify-content:center;flex:none;font-size:14px}
.u-txt{flex:1;font-size:13.5px;line-height:1.4}
.u-txt b{color:var(--primary-d)}
.u-time{font-size:11px;color:var(--muted);flex:none}
@keyframes fade{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- 安装教程 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:12px;max-width:620px;margin:0 auto}
.step{display:flex;gap:14px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-sm)}
.s-num{width:30px;height:30px;border-radius:50%;background:var(--grad);color:#fff;font-weight:900;display:inline-flex;align-items:center;justify-content:center;flex:none;font-size:15px}
.step h3{font-size:15px;margin-bottom:3px}
.step p{font-size:13px;color:var(--muted)}

/* ---------- 使用技巧 ---------- */
.tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.tip-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-sm)}
.tip-card h3{font-size:15px;margin-bottom:5px;color:var(--primary-d)}
.tip-card p{font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 更新日志 ---------- */
.changelog{max-width:620px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.cl-item{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow-sm)}
.cl-date{flex:none;font-size:12.5px;font-weight:800;color:#fff;background:var(--grad);padding:4px 10px;border-radius:8px;height:fit-content}
.cl-body{font-size:13.5px;color:var(--muted);line-height:1.6}
.cl-body b{color:var(--primary-d)}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:10px;max-width:760px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item summary{list-style:none;cursor:pointer;padding:15px 16px;font-weight:800;font-size:15px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--primary);font-size:22px;font-weight:400;flex:none}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 16px 15px;font-size:13.5px;color:var(--muted);line-height:1.7}
.faq-link{display:inline-block;margin-top:10px;background:var(--primary-soft);color:var(--primary-d);font-weight:800;font-size:13.5px;border:none;border-radius:999px;padding:9px 18px;min-height:44px;cursor:pointer;box-shadow:var(--shadow-sm)}
.faq-link:active{transform:scale(.97)}

/* ---------- 安全说明 ---------- */
.safe-note{text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 20px;box-shadow:var(--shadow)}
.safe-note h2{font-size:20px;margin-bottom:8px}
.safe-note p{font-size:14px;color:var(--muted);margin-bottom:16px}

/* ---------- 页脚 ---------- */
.footer{background:var(--surface);border-top:1px solid var(--line);padding:24px 0 8px}
.footer-nav{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:14px}
.footer-nav a{color:var(--muted);font-size:13.5px;padding:9px 12px;border-radius:10px;min-height:44px;display:inline-flex;align-items:center}
.footer-nav a:active{background:var(--primary-soft)}
.footer-beian{text-align:center;font-size:12px;color:var(--muted);line-height:1.8}
.beian-dl{display:inline-block;background:var(--grad);color:#fff;font-weight:800;font-size:13.5px;padding:9px 20px;border-radius:999px;margin-top:6px;min-height:44px}

/* ---------- 吸底下载条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:8px 14px calc(8px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.96);border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(123,97,255,.12);
}
.sticky-bar .mini{display:flex;align-items:center;gap:9px;min-width:0}
.sticky-bar .mini img{width:38px;height:38px;border-radius:9px;object-fit:cover;flex:none;box-shadow:var(--shadow-sm)}
.mini-t{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.mini-t b{font-size:14px}
.mini-t .s{font-size:10.5px;color:var(--muted)}
.btn-sticky{background:var(--grad);color:#fff;font-weight:800;font-size:14px;padding:11px 22px;border-radius:999px;min-height:44px;display:inline-flex;align-items:center;white-space:nowrap;flex:none;box-shadow:var(--shadow-sm)}
.btn-sticky:active{transform:scale(.97)}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:14px;bottom:84px;z-index:65;width:44px;height:44px;border-radius:50%;
  border:none;background:var(--grad);color:#fff;font-size:20px;font-weight:900;cursor:pointer;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;
}
.to-top.show{opacity:1;visibility:visible}

/* ---------- 响应式：PC ---------- */
@media (min-width:768px){
  .hero .container{flex-direction:row;text-align:left;gap:64px;justify-content:center;align-items:center;padding-top:24px;padding-bottom:24px}
  .hero-left{max-width:480px}
  .hero-badge{margin:0 auto 0 0}
  .hero-title{font-size:52px}
  .hero-btns{justify-content:flex-start}
  .hero-meta{justify-content:flex-start}
  .phone{width:300px;border-radius:38px}
  .feat-grid{grid-template-columns:repeat(3,1fr)}
  .review-grid{grid-template-columns:repeat(3,1fr)}
  .tips-grid{grid-template-columns:repeat(3,1fr)}
  .sec-title{font-size:30px}
  .section{padding:56px 0}
  .sticky-bar{display:none}
  .topbar .container{height:64px}
  .logo{font-size:20px}
  .shots{justify-content:center}
}
/* 中等宽度 PC：避免 hero 溢出 */
@media (min-width:768px) and (max-width:1024px){
  .hero .container{gap:44px}
  .hero-left{max-width:420px}
  .phone{width:260px}
}

/* ---------- 极小屏微调 ---------- */
@media (max-width:480px){
  .ugc-item .u-time{font-size:11px}
  .cl-date{font-size:12px}
  .footer-beian{font-size:12px}
  .hero-title{font-size:36px}
  .sec-title{font-size:23px}
}

/* ---------- 无障碍：减少动画 ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* ---------- 平台选择卡（长尾专题） ---------- */
.plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:18px 0 6px}
.plat-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 16px;box-shadow:var(--shadow)}
.plat-card h3{font-size:16px;margin-bottom:8px;color:var(--ink)}
.plat-card p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:10px}
.plat-link{display:inline-block;color:var(--primary);font-weight:600;font-size:13px;text-decoration:none}
.plat-note{margin-top:14px;font-size:14px;color:var(--muted);line-height:1.8;background:var(--primary-soft);border-radius:14px;padding:14px 16px}
.plat-note a{color:var(--primary);font-weight:600}

/* ---------- 长尾词云（大家还在搜） ---------- */
.kwcloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;justify-content:center}
.kw-chip{display:inline-block;font-size:13px;color:var(--primary-d);background:var(--primary-soft);border:1px solid var(--line);border-radius:999px;padding:7px 14px;line-height:1.2}

@media (max-width:768px){
  .plat-grid{grid-template-columns:1fr;gap:12px}
  .kwcloud{justify-content:flex-start}
}