/* =========================================================
   拷贝漫画 AI · 赛博漫画主题样式
   风格：深墨蓝底 + 电光蓝/品红/薄荷撞色 + 网点/速度线漫画元素
   ========================================================= */

:root{
  --bg:#070b18;
  --bg-2:#0c1226;
  --bg-3:#111a36;
  --card:#0e1730;
  --card-2:#14203f;
  --line:rgba(122,150,255,.18);
  --line-strong:rgba(140,170,255,.32);
  --text:#eaf0ff;
  --text-2:#b7c3e6;
  --muted:#7c89b4;
  --blue:#2e7bff;
  --blue-2:#6ea8ff;
  --pink:#ff3d81;
  --pink-2:#ff7ab0;
  --mint:#21e6c1;
  --yellow:#ffd166;
  --purple:#a78bfa;
  --orange:#ff9f43;
  --radius:18px;
  --shadow:0 20px 50px rgba(3,8,25,.55);
  --shadow-glow:0 0 0 1px rgba(110,168,255,.25),0 24px 60px rgba(3,8,25,.6);
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer}
ul{list-style:none}

.container{width:min(1200px,92%);margin:0 auto}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;border-radius:999px;transition:.28s;white-space:nowrap;
  border:2px solid transparent;
}
.btn svg{flex:0 0 auto}
.btn-lg{padding:15px 34px;font-size:17px}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),#4f6bff);
  color:#fff;box-shadow:0 10px 28px rgba(46,123,255,.4);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(46,123,255,.55)}
.btn-ghost{
  background:rgba(110,168,255,.08);color:var(--text);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(110,168,255,.18);transform:translateY(-3px)}
.btn-outline{
  background:transparent;color:var(--text);border-color:var(--line-strong);
}
.btn-outline:hover{background:rgba(110,168,255,.12);border-color:var(--blue-2);transform:translateY(-3px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(7,11,24,.72);backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;transition:.3s;
}
.site-header.scrolled{background:rgba(7,11,24,.92);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{width:42px;height:42px;border-radius:12px;box-shadow:0 6px 18px rgba(46,123,255,.4)}
.brand-text{font-size:20px;font-weight:800;letter-spacing:.5px}
.brand-text em{font-style:normal;color:var(--blue);margin-left:3px;
  background:linear-gradient(135deg,var(--blue),var(--pink));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.main-nav{display:flex;gap:4px}
.nav-link{
  padding:9px 16px;border-radius:999px;font-size:15px;font-weight:600;color:var(--text-2);
  transition:.25s;position:relative;
}
.nav-link:hover{color:#fff;background:rgba(110,168,255,.12)}
.nav-link.active{color:#fff;background:linear-gradient(135deg,rgba(46,123,255,.3),rgba(255,61,129,.18))}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px}
.nav-toggle span{width:24px;height:2.5px;background:var(--text);border-radius:2px;transition:.3s}

/* ---------- 主视觉 ---------- */
.hero{position:relative;padding:150px 0 70px;overflow:hidden}
.hero-bg-dots{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(110,168,255,.22) 1.5px,transparent 1.5px);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(70% 60% at 70% 30%,#000 0%,transparent 75%);
  mask-image:radial-gradient(70% 60% at 70% 30%,#000 0%,transparent 75%);
}
.hero::before{
  content:"";position:absolute;top:-220px;right:-160px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(46,123,255,.35),transparent 65%);
  filter:blur(30px);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-160px;left:-140px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(255,61,129,.25),transparent 65%);
  filter:blur(30px);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.hero-copy{position:relative;z-index:3}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(110,168,255,.12);border:1px solid var(--line-strong);
  padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;color:var(--blue-2);
}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 12px var(--mint);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero-title{
  font-size:clamp(38px,6vw,64px);font-weight:900;line-height:1.16;margin:20px 0 18px;
  letter-spacing:1px;
}
.grad-blue{
  background:linear-gradient(135deg,var(--blue-2),var(--blue));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.grad-pink{
  background:linear-gradient(135deg,var(--pink-2),var(--pink));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.zap{color:var(--yellow);display:inline-block;animation:zap 1.4s infinite}
@keyframes zap{0%,100%{transform:rotate(0) scale(1)}50%{transform:rotate(12deg) scale(1.15)}}
.hero-sub{font-size:17px;color:var(--text-2);max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:38px}
.hero-stats{
  display:flex;gap:0;border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(14,23,48,.6);backdrop-filter:blur(8px);overflow:hidden;
}
.hero-stats li{flex:1;padding:16px 10px;text-align:center;border-right:1px solid var(--line)}
.hero-stats li:last-child{border-right:none}
.hero-stats strong{display:block;font-size:24px;font-weight:800;color:#fff}
.hero-stats strong{background:linear-gradient(135deg,var(--blue-2),var(--pink-2));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats span{font-size:13px;color:var(--muted)}

/* 主视觉图 + 贴纸 */
.hero-visual{position:relative;min-height:480px}
.hero-art-wrap{position:relative;border-radius:28px;overflow:hidden;
  box-shadow:var(--shadow-glow);transform:rotate(2deg);
  border:3px solid var(--line-strong);
}
.hero-art{width:100%;height:100%;object-fit:cover}
.sticker{
  position:absolute;font-size:13px;font-weight:800;padding:8px 16px;border-radius:999px;
  color:#081022;box-shadow:0 10px 24px rgba(0,0,0,.4);z-index:3;letter-spacing:.5px;
  border:2px solid #081022;
}
.sticker-top{top:18px;left:18px;background:var(--mint);transform:rotate(-8deg)}
.sticker-right{top:32%;right:-14px;background:var(--pink);transform:rotate(6deg)}
.sticker-bottom{bottom:22px;right:20px;background:var(--yellow);transform:rotate(-5deg)}

/* 手机浮层 */
.phone{
  position:absolute;width:132px;border-radius:22px;padding:7px;
  background:#0a1022;border:2px solid var(--line-strong);
  box-shadow:0 22px 44px rgba(0,0,0,.5);z-index:4;overflow:hidden;
}
.phone img{width:100%;border-radius:16px;display:block}
.phone-notch{position:absolute;top:12px;left:50%;transform:translateX(-50%);width:44px;height:6px;border-radius:4px;background:rgba(0,0,0,.6);z-index:2}
.phone-a{left:-26px;bottom:-10px;transform:rotate(-9deg);animation:floatA 5s ease-in-out infinite}
.phone-b{right:-20px;top:-6px;transform:rotate(8deg);animation:floatB 6s ease-in-out infinite}
@keyframes floatA{0%,100%{transform:rotate(-9deg) translateY(0)}50%{transform:rotate(-6deg) translateY(-12px)}}
@keyframes floatB{0%,100%{transform:rotate(8deg) translateY(0)}50%{transform:rotate(5deg) translateY(-10px)}}

/* 跑马灯 */
.hero-marquee{
  position:relative;z-index:2;margin-top:70px;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:16px 0;background:rgba(12,18,38,.6);
}
.marquee-track{display:flex;gap:34px;white-space:nowrap;width:max-content;animation:marquee 30s linear infinite}
.marquee-track span{font-size:16px;font-weight:700;color:var(--text-2);letter-spacing:2px}
.marquee-track i{font-style:normal;color:var(--pink)}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-2)}
.section-head{text-align:center;max-width:640px;margin:0 auto 52px}
.section-tag{
  display:inline-block;padding:6px 18px;border-radius:999px;font-size:13px;font-weight:700;
  color:var(--blue-2);background:rgba(46,123,255,.12);border:1px solid var(--line-strong);
  letter-spacing:2px;margin-bottom:16px;
}
.section-title{font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.3;margin-bottom:12px}
.section-sub{color:var(--muted);font-size:16px}

/* ---------- AI 功能 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  background:linear-gradient(160deg,var(--card),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;
  transition:.3s;position:relative;overflow:hidden;
}
.feature-card::before{
  content:"";position:absolute;top:-60px;right:-60px;width:150px;height:150px;
  border-radius:50%;background:radial-gradient(circle,rgba(110,168,255,.16),transparent 70%);
}
.feature-card:hover{transform:translateY(-8px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.feature-icon{
  width:60px;height:60px;border-radius:18px;display:flex;align-items:center;justify-content:center;
  font-size:26px;font-weight:900;color:#081022;margin-bottom:20px;transform:rotate(-4deg);
  box-shadow:0 10px 22px rgba(0,0,0,.35);border:2px solid #081022;
}
.icon-blue{background:var(--blue)}
.icon-pink{background:var(--pink)}
.icon-mint{background:var(--mint)}
.icon-yellow{background:var(--yellow)}
.icon-purple{background:var(--purple)}
.icon-orange{background:var(--orange)}
.feature-card h3{font-size:19px;font-weight:800;margin-bottom:10px}
.feature-card p{color:var(--text-2);font-size:15px}

/* ---------- 漫画大厅 ---------- */
.comic-tabs{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:40px}
.comic-tab{
  padding:10px 26px;border-radius:999px;border:1px solid var(--line-strong);
  background:transparent;color:var(--text-2);font-size:15px;font-weight:600;transition:.25s;
}
.comic-tab:hover{color:#fff;border-color:var(--blue-2)}
.comic-tab.active{
  background:linear-gradient(135deg,var(--blue),#4f6bff);color:#fff;border-color:transparent;
  box-shadow:0 10px 24px rgba(46,123,255,.4);
}
.comic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.comic-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;transition:.3s;
}
.comic-card:hover{transform:translateY(-8px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.comic-card.hide{display:none}
.comic-card.pop{animation:popIn .4s ease both}
@keyframes popIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}
.comic-cover{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:3/4.2;margin-bottom:14px}
.comic-cover img{width:100%;height:100%;object-fit:cover;transition:.5s}
.comic-card:hover .comic-cover img{transform:scale(1.06)}
.comic-badge{
  position:absolute;top:10px;left:10px;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:800;color:#081022;background:var(--yellow);
  border:1.5px solid #081022;
}
.comic-name{font-size:17px;font-weight:800;margin-bottom:4px}
.comic-meta{font-size:13px;color:var(--muted)}
.comic-more{text-align:center;margin-top:44px}

/* ---------- 界面预览 ---------- */
.screen-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.screen-item{text-align:center}
.screen-frame{
  border-radius:26px;padding:9px;background:linear-gradient(160deg,#0d1530,#0a0f22);
  border:2px solid var(--line-strong);box-shadow:var(--shadow);
  margin-bottom:16px;transition:.3s;
}
.screen-item:hover .screen-frame{transform:translateY(-8px);border-color:var(--blue-2)}
.screen-frame img{border-radius:18px;width:100%}
.screen-item figcaption{font-size:15px;font-weight:700;color:var(--text-2)}

/* ---------- 下载专区 ---------- */
.section-download{padding:80px 0}
.download-panel{
  position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  background:linear-gradient(150deg,var(--bg-3),var(--card));
  border:1px solid var(--line-strong);border-radius:32px;padding:56px;overflow:hidden;
}
.halftone{
  position:absolute;inset:0;opacity:.4;pointer-events:none;
  background-image:radial-gradient(rgba(110,168,255,.2) 2px,transparent 2px);
  background-size:20px 20px;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 60%);
  mask-image:linear-gradient(90deg,#000,transparent 60%);
}
.download-info{position:relative;z-index:2}
.download-logo{width:84px;height:84px;border-radius:22px;margin-bottom:20px;box-shadow:0 14px 34px rgba(46,123,255,.45)}
.download-title{font-size:34px;font-weight:900;margin-bottom:6px}
.download-version{color:var(--blue-2);font-weight:700;margin-bottom:16px;letter-spacing:1px}
.download-desc{color:var(--text-2);margin-bottom:20px;max-width:420px}
.download-points{margin-bottom:28px}
.download-points li{color:var(--mint);font-weight:600;font-size:15px;margin-bottom:8px}
.download-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.download-safe{color:var(--muted);font-size:13px}
.download-art{position:relative;display:flex;justify-content:center}
.phone-big{position:relative;width:220px;transform:none;animation:none;border-radius:30px;padding:10px}
.phone-big img{border-radius:22px}
.phone-big::after{
  content:"";position:absolute;inset:auto -40px -30px -40px;height:60px;
  background:radial-gradient(ellipse,rgba(110,168,255,.5),transparent 70%);filter:blur(8px);
}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  margin-bottom:14px;overflow:hidden;transition:.3s;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;position:relative;
  background:rgba(110,168,255,.14);transition:.3s;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--blue-2);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-icon::before{width:12px;height:2.5px}
.faq-icon::after{width:2.5px;height:12px;transition:.3s}
.faq-item[open] .faq-icon{background:rgba(255,61,129,.2)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item p{padding:0 24px 22px;color:var(--text-2);font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:#050812;border-top:1px solid var(--line)}
.footer-inner{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:60px 0 40px;
}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:14px;max-width:320px}
.footer-col h4{font-size:16px;font-weight:800;margin-bottom:18px;color:#fff}
.footer-col a{display:block;color:var(--muted);font-size:14px;margin-bottom:10px;transition:.2s}
.footer-col a:hover{color:var(--blue-2)}
.footer-col p{color:var(--muted);font-size:14px;margin-bottom:8px}
.footer-bar{border-top:1px solid var(--line);padding:20px 0;text-align:center}
.footer-bar p{color:var(--muted);font-size:13px}

/* ---------- 回到顶部 ---------- */
.back-top{
  position:fixed;right:26px;bottom:30px;z-index:90;width:52px;height:52px;border-radius:16px;
  background:linear-gradient(135deg,var(--blue),#4f6bff);color:#fff;border:none;
  display:flex;align-items:center;justify-content:center;box-shadow:0 12px 30px rgba(46,123,255,.45);
  opacity:0;visibility:hidden;transform:translateY(16px);transition:.3s;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{transform:translateY(-4px)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:.7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .screen-row{grid-template-columns:repeat(2,1fr)}
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{margin-top:10px;min-height:auto;max-width:560px;margin-left:auto;margin-right:auto}
  .phone-a{left:-6px}
  .phone-b{right:-6px}
  .download-panel{grid-template-columns:1fr;padding:40px 28px}
  .download-art{order:-1}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .main-nav{
    position:fixed;top:72px;left:0;right:0;flex-direction:column;gap:2px;
    background:rgba(7,11,24,.98);padding:16px 20px 24px;
    border-bottom:1px solid var(--line);transform:translateY(-16px);opacity:0;
    visibility:hidden;transition:.3s;z-index:99;
  }
  .main-nav.open{transform:none;opacity:1;visibility:visible}
  .nav-link{padding:13px 16px}
  .nav-toggle{display:flex}
  .header-download{display:none}
  .hero{padding-top:120px}
  .hero-stats{flex-wrap:wrap}
  .hero-stats li{flex:1 1 45%;border-bottom:1px solid var(--line)}
  .feature-grid{grid-template-columns:1fr}
  .comic-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .screen-row{grid-template-columns:1fr}
  .download-panel{padding:32px 20px}
  .footer-inner{grid-template-columns:1fr}
  .back-top{right:16px;bottom:20px}
}