/* ============================================
   热血江湖2.0 - 官方移动端官网
   暗黑武侠 · 猩红 · 金
   Mobile-first
============================================ */

/* 设计 tokens */
:root{
  --bg:#0a0806;
  --bg-2:#14100b;
  --bg-card:#1c1610;
  --line:rgba(212,175,55,.18);
  --scarlet:#c41230;
  --scarlet-light:#e6364f;
  --gold:#d4af37;
  --gold-light:#f0c75e;
  --ink:#f4ead8;
  --ink-dim:#b8a88e;
  --ink-faint:#8d7c63;
  --hero-h:min(100svh,900px);
  --radius:16px;
  --shadow:0 12px 40px rgba(0,0,0,.55);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;scroll-padding-top:64px}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
em{font-style:normal}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}

/* scrollbar 隐藏 */
::-webkit-scrollbar{width:0;height:0}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:60px;
  transition:background .3s,border .3s;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(10,8,6,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  height:100%;padding:0 16px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:8px}
.brand-img{height:44px;width:auto;display:block;object-fit:contain}
.brand-logo{
  width:34px;height:34px;border-radius:8px;
  display:grid;place-items:center;
  font-size:18px;font-weight:900;color:#fff;
  background:linear-gradient(135deg,var(--scarlet),#7a0a1c);
  box-shadow:0 0 14px rgba(196,18,48,.6);
}
.brand-name{font-size:18px;font-weight:800;letter-spacing:1px}
.brand-name em{color:var(--gold-light);font-weight:900}

.nav-toggle{
  width:42px;height:42px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{
  width:22px;height:2px;background:var(--ink);
  border-radius:2px;transition:.3s;
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.site-nav{
  position:fixed;top:60px;right:0;bottom:0;width:268px;z-index:99;
  background:linear-gradient(180deg,#1a120b,#0c0906);
  border-left:1px solid var(--line);
  padding:24px 20px calc(28px + env(safe-area-inset-bottom));
  transform:translateX(105%);
  transition:transform .35s cubic-bezier(.22,.8,.3,1);
  display:flex;flex-direction:column;gap:20px;
}
.site-nav.open{transform:translateX(0)}
.nav-list{display:flex;flex-direction:column;gap:6px}
.nav-list a{
  padding:12px 6px;font-size:17px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(212,175,55,.08);
  transition:.2s;
}
.nav-list a:active{color:var(--gold-light);padding-left:12px}
.nav-download{margin-top:auto}
.btn-download{
  display:block;text-align:center;
  padding:14px;border-radius:12px;
  font-weight:800;font-size:16px;color:#fff;
  background:linear-gradient(135deg,var(--scarlet),#8a0f22);
  box-shadow:var(--shadow);
}
.nav-overlay{
  position:fixed;inset:0;top:60px;z-index:98;
  background:rgba(0,0,0,.6);
  opacity:0;pointer-events:none;transition:.3s;
}
.nav-overlay.show{opacity:1;pointer-events:auto}

/* ============ Hero（主视觉背景） ============ */
.hero{position:relative;overflow:hidden;background:var(--bg)}
/* 竖版主视觉在手机端完整展示，不做裁剪 */
.hero-media{position:relative;width:100%;line-height:0}
.hero-media img{width:100%;height:auto;display:block;object-fit:cover}
/* 底部渐变过渡，衔接下方正文 */
.hero-shade{
  position:absolute;left:0;right:0;bottom:0;height:55%;z-index:1;
  background:linear-gradient(to top,
    var(--bg) 0%,
    rgba(10,8,6,.55) 50%,
    rgba(10,8,6,0) 100%);
  pointer-events:none;
}
.hero-content{
  position:absolute;left:0;right:0;
  z-index:2;text-align:center;
  display:flex;flex-direction:column;justify-content:space-between;
  top:0;bottom:0;padding:0 22px;
}
.hero-top{padding-top:calc(70px + env(safe-area-inset-top))}
.hero-bottom{padding-bottom:calc(28px + env(safe-area-inset-bottom))}
.hero-badge{
  display:inline-block;margin:0 auto 12px;
  padding:5px 14px;border-radius:100px;
  font-size:12px;letter-spacing:2px;color:#fff;
  border:1px solid rgba(255,255,255,.4);background:rgba(0,0,0,.35);
  backdrop-filter:blur(6px);
}
.hero-title{margin:0 0 8px;line-height:1.1}
.title-logo{
  font-size:clamp(38px,11vw,72px);font-weight:900;
  letter-spacing:2px;display:inline-block;
  background:linear-gradient(180deg,#fffbe6 0%,#ffdd9e 45%,#e6364f 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 3px 12px rgba(0,0,0,.55));
}
.title-logo em{font-weight:900}
.hero-slogan{
  font-size:18px;font-weight:700;letter-spacing:3px;
  color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.6);
}
.hero-sub{margin-top:4px;font-size:13px;color:rgba(255,255,255,.85);letter-spacing:1px;text-shadow:0 1px 4px rgba(0,0,0,.5)}
.hero-actions{margin-top:24px;display:flex;justify-content:center;gap:16px;width:100%}
.medal{
  flex:1;max-width:200px;display:flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 14px;border-radius:999px;color:#fff;text-align:left;
  background:linear-gradient(135deg,#4f8ef7,#2f6beb);
  box-shadow:0 10px 26px rgba(47,107,235,.45),inset 0 1px 0 rgba(255,255,255,.28);
  transition:transform .15s,box-shadow .25s;
}
.medal:active{transform:scale(.96)}
.medal:hover{box-shadow:0 14px 34px rgba(79,142,247,.6),inset 0 1px 0 rgba(255,255,255,.34)}
.medal-ring{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
}
.medal-core img{width:16px;height:16px;object-fit:contain;display:block;filter:drop-shadow(0 1px 2px rgba(0,0,0,.3))}
.medal-tag{font-size:14px;font-weight:800;letter-spacing:1px;white-space:nowrap}

/* 移动端：Hero 内容垂直居中，下载按钮上移并居中 */
@media (max-width:700px){
  .hero-content{justify-content:center;gap:5vh}
  .hero-top{padding-top:calc(60px + env(safe-area-inset-top))}
  .hero-bottom{padding-bottom:4px}
  .hero-actions{max-width:320px;margin-left:auto;margin-right:auto}
  .medal{padding:11px 12px;gap:8px}
  .medal-ring{width:26px;height:26px;border-radius:8px}
  .medal-core img{width:14px;height:14px}
  .medal-tag{font-size:13px}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:120px;padding:13px 22px;border-radius:12px;
  font-weight:800;font-size:15px;letter-spacing:1px;color:#fff;
  transition:transform .15s,box-shadow .2s;
  -webkit-user-select:none;user-select:none;
}
.btn:active{transform:scale(.96)}
.btn-primary{
  background:linear-gradient(135deg,var(--scarlet),#8a0f22);
  box-shadow:0 6px 20px rgba(196,18,48,.5);
}
.btn-ghost{
  background:rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.7);color:#fff;
  backdrop-filter:blur(6px);
}

/* ============ 通用 section ============ */
.section{padding:44px 20px}
.section-head{margin-bottom:24px;position:relative}
.section-title{
  font-size:24px;font-weight:900;letter-spacing:1px;text-align:center;
}
.section-title::after{
  content:"";display:block;width:44px;height:3px;margin:10px auto 0;
  border-radius:3px;background:linear-gradient(90deg,var(--scarlet),var(--gold));
}
.section-sub{text-align:center;color:var(--ink-faint);font-size:13px;margin-top:6px}
.more-link{
  position:absolute;right:0;top:6px;font-size:13px;
  color:var(--gold-light);
}

/* ============ 公告 ============ */
.news-tabs{display:flex;gap:10px;justify-content:center;margin-bottom:18px}
.tab{
  padding:8px 22px;border-radius:100px;font-size:14px;color:var(--ink-dim);
  border:1px solid var(--line);transition:.2s;
}
.tab.active{
  color:#fff;background:linear-gradient(135deg,var(--scarlet),#8a0f22);
  border-color:transparent;
}
.news-list{display:flex;flex-direction:column;gap:10px}
.news-item{
  display:flex;align-items:center;gap:10px;
  padding:13px 14px;border-radius:12px;
  background:var(--bg-card);border:1px solid rgba(255,255,255,.04);
}
.news-item.hide{display:none}
.news-tag{
  flex-shrink:0;font-size:11px;padding:2px 8px;border-radius:4px;
  color:#fff;background:#3a3327;
}
.news-tag.hot{background:linear-gradient(135deg,var(--scarlet),#8a0f22)}
.news-tag.act{background:linear-gradient(135deg,var(--gold),#a87d1a)}
.news-item p{
  flex:1;font-size:14px;color:var(--ink);
  overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
}
.news-item time{font-size:12px;color:var(--ink-faint);flex-shrink:0}

/* ============ 简介 ============ */
.intro-card{
  background:linear-gradient(160deg,#1e1710,#150f0a);
  border:1px solid var(--line);border-radius:20px;
  padding:26px 22px;box-shadow:var(--shadow);
}
.intro-text{font-size:15px;color:var(--ink);text-align:justify;margin-bottom:20px}
.intro-points{list-style:none;display:grid;gap:12px}
.intro-points li{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-dim);
}
.dot{
  width:8px;height:8px;border-radius:2px;flex-shrink:0;
  background:linear-gradient(135deg,var(--gold),var(--scarlet));
  transform:rotate(45deg);
}

/* ============ 职业 ============ */
.class-tabs{
  display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:20px;
}
.classtab{
  min-width:0;display:flex;flex-direction:column;
  align-items:center;gap:6px;padding:8px 4px;border-radius:12px;
  transition:.25s;
}
.cls-icon{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  font-size:17px;font-weight:900;color:var(--gold-light);
  border:1px solid var(--line);background:var(--bg-card);
  transition:.25s;
}
.cls-label{font-size:12px;color:var(--ink-dim)}
.classtab.active .cls-icon{
  background:linear-gradient(135deg,var(--scarlet),#8a0f22);
  color:#fff;border-color:transparent;box-shadow:0 0 14px rgba(196,18,48,.5);
}
.classtab.active .cls-label{color:var(--gold-light);font-weight:700}

.class-stage{position:relative;min-height:420px}
.class-card{
  position:absolute;inset:0;
  background:linear-gradient(160deg,#1e1710,#120d08);
  border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow);
  opacity:0;pointer-events:none;transform:translateY(20px);
  transition:opacity .4s,transform .4s;
}
.class-card.active{opacity:1;pointer-events:auto;transform:none}
.class-img{
  height:220px;overflow:hidden;position:relative;
}
.class-img img{width:100%;height:100%;object-fit:cover;object-position:top center}
.class-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,#1e1710 4%,transparent 45%);
}
.class-info{padding:6px 22px 26px;position:relative}
.class-name{font-size:26px;font-weight:900;color:var(--gold-light)}
.class-tagline{font-size:13px;color:var(--scarlet-light);letter-spacing:2px;margin:2px 0 12px}
.class-desc{font-size:14px;color:var(--ink-dim);margin-bottom:16px}
.class-role{
  display:inline-block;font-size:12px;padding:5px 12px;border-radius:100px;
  color:var(--gold-light);border:1px solid var(--line);
}

/* ============ 特色玩法 ============ */
.feature-list{display:grid;gap:18px}
.feature-card{
  background:var(--bg-card);border:1px solid rgba(255,255,255,.04);
  border-radius:18px;overflow:hidden;box-shadow:var(--shadow);
}
.feature-media{position:relative;height:190px;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.feature-card:active .feature-media img{transform:scale(1.05)}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,var(--bg-card) 3%,transparent 40%);
}
.feature-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:6px;
  color:#fff;background:linear-gradient(135deg,var(--scarlet),#8a0f22);
}
.feature-body{padding:2px 18px 20px}
.feature-body h3{font-size:18px;font-weight:800;margin-bottom:6px}
.feature-body h3::before{content:"",border-left:3px solid var(--gold);margin-right:8px}
.feature-body p{font-size:13px;color:var(--ink-dim)}

/* ============ 截图 ============ */
.gallery-scroll{
  display:flex;gap:12px;overflow-x:auto;
  padding-bottom:14px;margin:0 -20px;padding-left:20px;padding-right:20px;
  scroll-snap-type:x mandatory;
}
.shot{
  flex:0 0 auto;width:70%;border-radius:14px;overflow:hidden;
  scroll-snap-align:center;
  border:1px solid rgba(255,255,255,.06);
}
.shot img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.shot-single{width:100%}

/* ============ 下载 CTA ============ */
.download{position:relative;overflow:hidden;text-align:center;padding-top:56px;padding-bottom:64px}
.download-bg{
  position:absolute;inset:0;
  background:radial-gradient(circle at 50% 0%,rgba(196,18,48,.25),transparent 60%),
             radial-gradient(circle at 50% 100%,rgba(212,175,55,.12),transparent 50%);
}
.download-content{position:relative;z-index:2}
.download-title{
  font-size:30px;font-weight:900;letter-spacing:2px;
  background:linear-gradient(180deg,#fff,var(--gold-light));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.download-sub{margin:10px 0 26px;color:var(--ink-dim);font-size:14px}
.download-actions{display:flex;gap:16px;justify-content:center}
.btn-store{
  display:flex;align-items:center;gap:12px;min-width:164px;
  padding:12px 18px;border-radius:14px;color:#fff;text-align:left;
  background:linear-gradient(160deg,#2a2118,#1a140d);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 6px 18px rgba(0,0,0,.35);
  transition:transform .15s,border-color .2s;
}
.btn-store:active{transform:scale(.96)}
.btn-store.android{border-color:rgba(124,198,93,.4)}
.btn-store.android:hover{border-color:rgba(124,198,93,.8)}
.btn-store.ios{border-color:rgba(240,199,94,.4)}
.btn-store.ios:hover{border-color:rgba(240,199,94,.8)}
.btn-icon{
  flex-shrink:0;width:42px;height:42px;border-radius:10px;overflow:hidden;
  background:linear-gradient(160deg,#241b12,#17110b);
  border:1px solid rgba(255,255,255,.1);
  display:grid;place-items:center;
}
.btn-icon img{width:32px;height:32px;object-fit:contain;display:block}
.btn-meta{display:flex;flex-direction:column;line-height:1.15}
.btn-meta small{font-size:11px;color:var(--gold);letter-spacing:.5px;opacity:.85}
.btn-meta b{font-size:16px;font-weight:800}
.download-note{margin-top:18px;font-size:12px;color:var(--ink-faint)}

/* ============ 页脚 ============ */
.site-footer{
  text-align:center;padding:32px 20px calc(92px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);color:var(--ink-faint);font-size:12px;
  background:#070504;
}
.footer-logo{font-size:20px;font-weight:900;color:var(--ink)}
.footer-logo em{color:var(--gold-light)}
.footer-links{display:flex;gap:20px;justify-content:center;margin:14px 0}
.footer-links a{color:var(--ink-dim);font-size:13px}
.footer-crew{margin-top:6px;line-height:1.9}
.footer-copy{margin-top:10px}

/* ============ 底部固定下载条 ============ */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(12,9,6,.92);backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  opacity:0;transform:translateY(110%);
  transition:.4s;
}
.bottom-bar.show{opacity:1;transform:none}
.bottom-txt{font-size:14px;font-weight:700}
.bottom-txt em{color:var(--gold-light)}
.btn-sm{
  min-width:110px;padding:11px 18px;font-size:15px;
  -webkit-user-select:none;user-select:none;
}

/* ============ 动画：滚动进入 ============ */
.fade-up{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.fade-up.in{opacity:1;transform:none}

/* ============ 桌面端增强（>768px） ============ */
@media(min-width:768px){
  .section{padding:60px clamp(24px,8vw,120px)}
  .gallery-scroll{margin:0;padding:0 clamp(24px,8vw,120px)}
  .class-stage{min-height:560px}
  .class-img{height:340px}
  /* 桌面端将竖版主视觉裁切为满屏背景 */
  .hero{height:100vh;min-height:640px}
  .hero-media{position:absolute;inset:0}
  .hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 20%}
  .hero-content{bottom:52px}
  .hero-shade{height:46%}
  .feature-list{grid-template-columns:repeat(3,1fr);gap:20px}
  .intro-card{max-width:760px;margin:0 auto}
  .news{max-width:760px;margin:0 auto}
  .nav-toggle{display:none}
  .site-nav{
    position:static;transform:none;flex-direction:row;align-items:center;
    width:auto;background:none;border:none;padding:0;
  }
  .nav-list{flex-direction:row;gap:24px;align-items:center}
  .nav-list a{border:none;padding:8px 0;font-size:14px}
  .nav-download{margin:0}
  .nav-download .btn-download{display:none}
  .section-title{font-size:30px}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto}
}

/* ============ iOS 安装引导弹窗 ============ */
.ios-guide{
  position:fixed;inset:0;z-index:300;
  display:flex;align-items:center;justify-content:center;
  padding:20px;opacity:0;pointer-events:none;transition:opacity .25s;
}
.ios-guide.open{opacity:1;pointer-events:auto}
.ios-guide-mask{
  position:absolute;inset:0;background:rgba(0,0,0,.68);
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
}
.ios-guide-card{
  position:relative;width:100%;max-width:400px;
  background:linear-gradient(160deg,#241b12,#140e08);
  border:1px solid var(--line);border-radius:20px;
  padding:26px 22px 24px;box-shadow:0 24px 70px rgba(0,0,0,.6);
  transform:translateY(16px) scale(.98);transition:transform .28s cubic-bezier(.22,.8,.3,1);
}
.ios-guide.open .ios-guide-card{transform:none}
.ios-guide-close{
  position:absolute;top:12px;right:14px;
  width:32px;height:32px;border-radius:50%;
  font-size:22px;line-height:1;color:var(--ink-dim);
  background:rgba(255,255,255,.06);
}
.ios-guide-close:active{background:rgba(255,255,255,.15)}
.ios-guide-icon{
  width:52px;height:52px;margin:0 auto 12px;object-fit:contain;display:block;
  filter:drop-shadow(0 4px 12px rgba(0,0,0,.5));
}
.ios-guide-title{
  text-align:center;font-size:20px;font-weight:900;
  letter-spacing:2px;color:var(--gold-light);margin-bottom:16px;
}
.ios-guide-steps{list-style:none;counter-reset:g;display:grid;gap:12px;margin-bottom:22px}
.ios-guide-steps li{
  position:relative;padding-left:34px;font-size:14px;color:var(--ink-dim);line-height:1.6;
}
.ios-guide-steps li::before{
  counter-increment:g;content:counter(g);
  position:absolute;left:0;top:2px;
  width:22px;height:22px;border-radius:50%;
  display:grid;place-items:center;
  font-size:12px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--scarlet),#8a0f22);
}
.ios-guide-steps li span{color:var(--ink);font-weight:700}
.ios-guide-btn{
  display:block;width:100%;padding:14px;border-radius:12px;
  font-size:16px;font-weight:800;letter-spacing:2px;color:#fff;
  background:linear-gradient(135deg,var(--scarlet),#8a0f22);
  box-shadow:0 8px 24px rgba(196,18,48,.45);
  transition:transform .15s;
}
.ios-guide-btn:active{transform:scale(.97)}
.ios-guide-tip{margin-top:14px;text-align:center;font-size:12px;color:var(--ink-faint)}