/* ===== 大话蜀山 · 官网样式 ===== */
:root{
  --gold:#f5c26b;
  --gold-l:#ffe3a8;
  --gold-d:#b98a3e;
  --cyan:#4fd8e0;
  --ink:#1a1620;
  --ink-2:#241e2e;
  --ink-3:#332a41;
  --red:#ff5566;
  --text:#e8e2f2;
  --text-dim:#a99cc2;
  --font-title:"华文行楷","STXingkai","楷体","KaiTi",serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  background:var(--ink);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:90px 0;position:relative}
[id]{scroll-margin-top:72px}

/* ===== 通用标题 ===== */
.section-head{text-align:center;margin-bottom:52px}
.section-head h2{
  font-size:clamp(28px,4.4vw,44px);
  font-weight:800;
  letter-spacing:.12em;
  color:var(--gold);
  text-shadow:0 0 22px rgba(245,194,107,.35);
  position:relative;
  display:inline-block;
}
.section-head h2::before,
.section-head h2::after{
  content:"◆";
  position:absolute;top:50%;transform:translateY(-50%);
  font-size:.5em;color:var(--gold-d);
}
.section-head h2::before{left:-1.4em}
.section-head h2::after{right:-1.4em}
.section-head p{margin-top:10px;color:var(--text-dim);letter-spacing:.35em;font-size:14px}
.section-head.light h2{color:#fff;text-shadow:0 0 26px rgba(255,255,255,.4)}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:999;
  padding:14px 0;
  transition:all .4s;
  background:linear-gradient(180deg,rgba(12,9,18,.85),transparent);
}
.site-header.scrolled{
  background:rgba(18,13,26,.94);
  box-shadow:0 6px 24px rgba(0,0,0,.45);
  backdrop-filter:blur(12px);
  padding:9px 0;
  border-bottom:1px solid rgba(245,194,107,.18);
}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 22px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px}
.brand-icon{width:40px;height:40px;border-radius:10px;object-fit:cover;box-shadow:0 0 14px rgba(245,194,107,.5)}
.brand-name{font-size:22px;font-weight:800;letter-spacing:.08em;color:var(--gold-l)}
.brand-badge{
  font-size:11px;color:#fff;background:linear-gradient(135deg,#ff8a3c,#ff3c5a);
  padding:2px 8px;border-radius:20px;font-weight:700;letter-spacing:.05em;
  box-shadow:0 0 10px rgba(255,80,90,.5);
}
.main-nav{display:flex;gap:4px;margin-left:auto}
.main-nav a{
  padding:8px 14px;border-radius:8px;color:#d9d0e8;font-size:15px;
  position:relative;transition:all .3s;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent);
  transition:width .3s;border-radius:2px;
}
.main-nav a:hover{color:var(--gold-l)}
.main-nav a:hover::after{width:70%}
.btn-download-nav{
  background:linear-gradient(135deg,var(--gold),var(--gold-d));
  color:#241400;font-weight:800;padding:9px 22px;border-radius:30px;font-size:15px;
  box-shadow:0 4px 18px rgba(245,194,107,.45);
  transition:all .3s;flex-shrink:0;
}
.btn-download-nav:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(245,194,107,.6)}
.nav-toggle{
  display:none;flex-direction:column;gap:5px;background:none;border:none;
  padding:8px;cursor:pointer;margin-left:auto;
}
.nav-toggle span{width:24px;height:2px;background:var(--gold-l);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)}

/* ===== Hero 首屏 ===== */
.hero{
  min-height:100vh;position:relative;display:flex;align-items:center;
  justify-content:center;text-align:center;overflow:hidden;
  padding:120px 20px 60px;
}
.hero-bg{
  position:absolute;inset:-20px;background-size:cover;background-position:center;
  animation:kenburns 22s ease-in-out infinite alternate;
}
@keyframes kenburns{from{transform:scale(1)}to{transform:scale(1.12)}}
.hero-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 50% 45%,rgba(10,7,16,.25),rgba(10,7,16,.86) 75%),
    linear-gradient(180deg,rgba(10,7,16,.55),transparent 35%,transparent 60%,rgba(26,20,32,1));
}
.hero-content{position:relative;z-index:2;max-width:920px}
.hero-tag{
  display:inline-block;font-size:clamp(14px,2vw,17px);letter-spacing:.55em;
  color:var(--gold-l);background:rgba(245,194,107,.12);
  border:1px solid rgba(245,194,107,.5);border-radius:40px;padding:8px 26px 8px 32px;
  margin-bottom:26px;text-shadow:0 0 14px rgba(245,194,107,.6);
}
.hero-title{
  font-family:var(--font-title);
  font-size:clamp(58px,11vw,128px);
  font-weight:700;
  color:transparent;
  background:linear-gradient(180deg,#fff7e2 8%,var(--gold-l) 35%,var(--gold) 62%,#8a5a17 100%);
  -webkit-background-clip:text;background-clip:text;
  filter:drop-shadow(0 6px 30px rgba(245,194,107,.4));
  letter-spacing:.16em;line-height:1.12;
  animation:glowPulse 3.2s ease-in-out infinite;
}
@keyframes glowPulse{
  0%,100%{filter:drop-shadow(0 6px 26px rgba(245,194,107,.32))}
  50%{filter:drop-shadow(0 6px 40px rgba(245,194,107,.6))}
}
.hero-sub{margin-top:16px;color:#d8cfe8;font-size:clamp(15px,2.2vw,19px);letter-spacing:.12em;line-height:2}
.hero-meta{margin-top:24px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.badge-gold,.badge-line{
  font-size:14px;padding:7px 20px;border-radius:30px;letter-spacing:.1em;
}
.badge-gold{
  background:linear-gradient(135deg,#ffd27a,#ff9b3c);color:#351d00;font-weight:800;
  box-shadow:0 0 20px rgba(255,170,80,.55);animation:pulseTag 2s infinite;
}
@keyframes pulseTag{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
.badge-line{border:1px solid rgba(232,226,242,.35);color:#cfc4e2;background:rgba(0,0,0,.25)}
.hero-actions{margin-top:38px;display:flex;justify-content:center;gap:18px;flex-wrap:wrap}
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;gap:12px;font-size:17px;font-weight:800;
  padding:16px 44px;border-radius:50px;letter-spacing:.1em;transition:all .3s;
}
.btn-primary{
  color:#241400;
  background:linear-gradient(135deg,#ffe3a0,var(--gold) 45%,#c98f36);
  box-shadow:0 6px 26px rgba(245,194,107,.5),inset 0 1px 0 rgba(255,255,255,.7);
  position:relative;overflow:hidden;
}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-80%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  animation:shine 3s infinite;
}
@keyframes shine{0%{left:-80%}55%,100%{left:140%}}
.btn-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 12px 36px rgba(245,194,107,.7)}
.btn-ghost{
  color:var(--text);border:1px solid rgba(232,226,242,.4);
  background:rgba(20,14,30,.45);backdrop-filter:blur(6px);
}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-l);transform:translateY(-3px)}
.btn-primary.small{padding:13px 34px;font-size:15px}
/* 双平台下载按钮 */
.dl-btns{display:flex;gap:18px;justify-content:center;align-items:stretch;flex-wrap:wrap}
.btn-platform{
  display:flex;align-items:center;gap:16px;
  padding:16px 36px;border-radius:20px;min-width:224px;
  text-align:left;transition:all .3s;position:relative;overflow:hidden;
  box-shadow:0 12px 30px rgba(0,0,0,.38);
}
.btn-platform::before{
  content:"";position:absolute;top:0;left:-90%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.4),transparent);
  animation:shine 3.4s infinite;
}
.btn-platform:hover{transform:translateY(-4px) scale(1.02)}
.btn-platform svg{flex-shrink:0;filter:drop-shadow(0 2px 6px rgba(0,0,0,.3))}
.platform-text{display:flex;flex-direction:column;line-height:1.3;font-size:20px;font-weight:800;letter-spacing:.08em}
.platform-text small{font-size:12px;font-weight:500;letter-spacing:.14em;margin-top:4px}
.btn-platform.android{
  background:linear-gradient(135deg,#55e690,#0da656 70%);
  color:#043a1d;
}
.btn-platform.android::before{background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent)}
.btn-platform.android .platform-text small{color:rgba(4,58,29,.75)}
.btn-platform.ios{
  background:linear-gradient(135deg,#56a8ff,#1e6fe0 72%);
  color:#ffffff;
  box-shadow:0 12px 30px rgba(0,0,0,.38),0 6px 22px rgba(30,111,224,.4);
}
.btn-platform.ios .platform-text small{color:rgba(255,255,255,.8)}
.hero-marquee{
  margin-top:46px;overflow:hidden;border-radius:40px;
  background:rgba(12,8,20,.5);border:1px solid rgba(245,194,107,.22);
  backdrop-filter:blur(4px);padding:11px 0;
}
.marquee-inner{
  display:flex;gap:56px;white-space:nowrap;width:max-content;
  animation:marquee 26s linear infinite;
}
.marquee-inner span{
  color:var(--gold-l);font-size:14px;letter-spacing:.22em;
  display:inline-flex;align-items:center;gap:56px;
}
.marquee-inner span::after{content:"✦";color:var(--gold-d);font-size:10px}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.hero-scroll{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;
  width:26px;height:44px;border:2px solid rgba(245,194,107,.55);border-radius:16px;
}
.hero-scroll::after{
  content:"";position:absolute;top:8px;left:50%;transform:translateX(-50%);
  width:4px;height:8px;border-radius:4px;background:var(--gold);
  animation:scrollDot 1.6s infinite;
}
@keyframes scrollDot{0%{opacity:1;top:8px}70%{opacity:0;top:22px}100%{opacity:0;top:8px}}

/* ===== 一句话卖点 ===== */
.one-liner{
  background:linear-gradient(90deg,transparent,rgba(245,194,107,.16),transparent);
  border-top:1px solid rgba(245,194,107,.18);
  border-bottom:1px solid rgba(245,194,107,.18);
  padding:22px 0;text-align:center;
}
.one-liner-text{
  color:var(--gold-l);font-size:clamp(16px,2.6vw,21px);font-weight:700;
  letter-spacing:.3em;animation:pulseTag 2.4s infinite;
}
.icon-sword{color:var(--gold-d);margin:0 8px}

/* ===== 玩法特色 ===== */
.features{background:linear-gradient(180deg,var(--ink),#241b2f)}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid rgba(245,194,107,.14);
  border-radius:20px;padding:34px 28px;text-align:center;
  transition:all .4s;position:relative;overflow:hidden;
}
.feature-card::before{
  content:"";position:absolute;top:-70px;right:-70px;width:160px;height:160px;
  background:radial-gradient(circle,rgba(245,194,107,.18),transparent 70%);
}
.feature-card:hover{
  transform:translateY(-10px);border-color:rgba(245,194,107,.6);
  box-shadow:0 18px 44px rgba(0,0,0,.5),0 0 26px rgba(245,194,107,.14);
}
.feature-ico{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  font-size:30px;font-weight:900;color:#1c1206;
  transform:rotate(-6deg);transition:transform .4s;
  box-shadow:0 8px 22px rgba(0,0,0,.35);
}
.feature-card:hover .feature-ico{transform:rotate(6deg) scale(1.1)}
.feature-ico.gold{background:linear-gradient(135deg,#ffe3a0,#c98f36)}
.feature-ico.cyan{background:linear-gradient(135deg,#a8f0f4,#3aa8b4);color:#08353a}
.feature-ico.red{background:linear-gradient(135deg,#ff9aa4,#d6384e);color:#40050c}
.feature-card h3{font-size:20px;color:var(--gold-l);margin-bottom:10px;letter-spacing:.06em}
.feature-card p{font-size:14.5px;color:var(--text-dim);line-height:1.85}

/* ===== 养龙空战 ===== */
.dragon{
  background:
    radial-gradient(1200px 500px at 88% 20%,rgba(79,216,224,.12),transparent 60%),
    radial-gradient(900px 460px at 6% 90%,rgba(245,194,107,.1),transparent 55%),
    #1b1522;
  overflow:hidden;
}
.dragon-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.dragon-text h2{
  font-size:clamp(28px,4.4vw,44px);color:#fff;letter-spacing:.1em;
  font-weight:800;line-height:1.3;
}
.dragon-text h2 span{color:var(--cyan);text-shadow:0 0 24px rgba(79,216,224,.55)}
.dragon-lead{margin:16px 0 26px;color:var(--cyan);font-size:17px;letter-spacing:.12em;font-weight:600}
.dragon-list{list-style:none;margin-bottom:34px}
.dragon-list li{
  padding:10px 0 10px 30px;position:relative;color:#d5cce8;font-size:16px;
}
.dragon-list li::before{
  content:"❖";position:absolute;left:0;top:10px;color:var(--gold);
  text-shadow:0 0 12px rgba(245,194,107,.8);
}
.dragon-visual{
  border-radius:24px;overflow:hidden;position:relative;
  border:1px solid rgba(79,216,224,.3);
  box-shadow:0 30px 70px rgba(0,0,0,.55),0 0 50px rgba(79,216,224,.16);
}
.dragon-visual img{width:100%;height:430px;object-fit:cover;transition:transform .8s}
.dragon-visual:hover img{transform:scale(1.06)}
.dragon-visual::after{
  content:"养龙空战 · 御龙九天";position:absolute;left:0;right:0;bottom:0;
  padding:46px 22px 16px;text-align:center;color:#fff;letter-spacing:.3em;font-size:15px;
  background:linear-gradient(transparent,rgba(8,5,12,.9));
}

/* ===== 职业轮播 ===== */
.classes{background:linear-gradient(180deg,#241b2f,#1a1620)}
.class-slider{position:relative;max-width:960px;margin:0 auto}
.class-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;border-radius:24px}
.class-track::-webkit-scrollbar{display:none}
.class-slide{flex:0 0 100%;scroll-snap-align:center;padding:6px}
.class-card{
  display:grid;grid-template-columns:.92fr 1.08fr;overflow:hidden;border-radius:24px;
  border:1px solid rgba(245,194,107,.2);background:linear-gradient(150deg,#2a2136,#1d1626);
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.class-img{min-height:320px;position:relative}
.class-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.class-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent 55%,#1d1626);
}
.class-info{padding:44px 38px;display:flex;flex-direction:column;justify-content:center}
.class-info h3{font-size:clamp(22px,3vw,30px);color:var(--gold-l);letter-spacing:.08em;margin-bottom:14px}
.class-info h3::before{content:"✦ ";color:var(--gold-d)}
.class-info p{color:var(--text-dim);font-size:15.5px;line-height:2}
.slider-btn{
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;
  width:46px;height:46px;border-radius:50%;border:1px solid rgba(245,194,107,.5);
  background:rgba(16,10,24,.7);color:var(--gold);font-size:26px;line-height:1;
  cursor:pointer;transition:all .3s;backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;
}
.slider-btn:hover{background:var(--gold);color:#241400;box-shadow:0 0 22px rgba(245,194,107,.6)}
.slider-btn.prev{left:-62px}
.slider-btn.next{right:-62px}
.slider-dots{display:flex;justify-content:center;gap:10px;margin-top:24px}
.slider-dots .dot{
  width:9px;height:9px;border-radius:50%;border:none;cursor:pointer;
  background:rgba(232,226,242,.25);transition:all .3s;
}
.slider-dots .dot.active{width:28px;border-radius:6px;background:var(--gold);box-shadow:0 0 12px rgba(245,194,107,.7)}

/* ===== 特色亮点 ===== */
.highlights{
  background:
    radial-gradient(800px 420px at 50% 0%,rgba(255,140,60,.16),transparent 65%),
    linear-gradient(180deg,#241b2f,#1a1620);
}
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.hl-item{
  border-radius:18px;padding:30px 24px;text-align:center;position:relative;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
  transition:all .35s;overflow:hidden;
}
.hl-item:hover{transform:translateY(-8px);border-color:rgba(245,194,107,.55);background:rgba(245,194,107,.07)}
.hl-num{
  position:absolute;top:6px;right:14px;font-size:52px;font-weight:900;
  color:rgba(245,194,107,.14);line-height:1;font-style:italic;
}
.hl-item h3{color:#fff;font-size:19px;margin:6px 0 8px;letter-spacing:.08em}
.hl-item p{color:var(--text-dim);font-size:13.5px;line-height:1.85}

/* ===== 上线福利 ===== */
.welfare{background:linear-gradient(180deg,#1a1620,#241b2f)}
.welfare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.welfare-card{
  text-align:center;padding:38px 26px;border-radius:20px;position:relative;
  background:linear-gradient(165deg,rgba(245,194,107,.1),rgba(245,194,107,.02));
  border:1px solid rgba(245,194,107,.22);transition:all .4s;
}
.welfare-card::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:0;height:3px;background:linear-gradient(90deg,transparent,var(--gold),transparent);
  transition:width .45s;
}
.welfare-card:hover{transform:translateY(-8px);border-color:rgba(245,194,107,.6)}
.welfare-card:hover::before{width:86%}
.welfare-ico{
  width:58px;height:58px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;color:var(--gold-l);
  border:1px dashed rgba(245,194,107,.6);
  animation:rot 12s linear infinite;
}
@keyframes rot{to{transform:rotate(360deg)}}
.welfare-card h3{color:var(--gold-l);font-size:20px;margin-bottom:10px;letter-spacing:.1em}
.welfare-card p{color:var(--text-dim);font-size:14px;line-height:1.9}

/* ===== 精彩截图 ===== */
.media{background:linear-gradient(180deg,#241b2f,#1a1620)}
.media-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.media-item{
  border-radius:16px;overflow:hidden;cursor:pointer;position:relative;
  border:1px solid rgba(255,255,255,.09);transition:all .4s;
}
.media-item img{width:100%;height:230px;object-fit:cover;transition:transform .7s}
.media-item::after{
  content:"＋";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:44px;color:var(--gold-l);background:rgba(12,7,18,.55);
  opacity:0;transition:opacity .35s;
}
.media-item:hover{transform:translateY(-8px);box-shadow:0 20px 44px rgba(0,0,0,.55);border-color:rgba(245,194,107,.5)}
.media-item:hover img{transform:scale(1.12)}
.media-item:hover::after{opacity:1}
.lightbox{
  position:fixed;inset:0;z-index:2000;display:none;
  align-items:center;justify-content:center;
  background:rgba(6,4,10,.93);backdrop-filter:blur(6px);
}
.lightbox.open{display:flex}
.lightbox img{max-width:90vw;max-height:86vh;border-radius:12px;box-shadow:0 30px 90px rgba(0,0,0,.7);border:1px solid rgba(245,194,107,.3)}
.lightbox-close{
  position:absolute;top:22px;right:30px;font-size:40px;color:var(--gold-l);
  background:none;border:none;cursor:pointer;transition:.3s;line-height:1;
}
.lightbox-close:hover{transform:rotate(90deg);color:#fff}
.lightbox-caption{position:absolute;bottom:24px;left:0;right:0;text-align:center;color:var(--gold-l);letter-spacing:.2em;font-size:14px}

/* ===== 下载区 ===== */
.download{position:relative;overflow:hidden;padding:110px 0}
.download-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.download-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,10,22,.95) 0%,rgba(15,10,22,.85) 45%,rgba(15,10,22,.6) 100%);
}
.download-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.download-logo{width:96px;height:96px;border-radius:22px;margin-bottom:20px;box-shadow:0 0 40px rgba(245,194,107,.55);object-fit:cover}
.download-info h2{font-size:clamp(30px,5vw,50px);color:#fff;letter-spacing:.12em;font-weight:800}
.download-info p{color:var(--gold-l);margin-top:8px;letter-spacing:.1em;font-size:16px}
.download-meta{margin-top:20px;display:flex;gap:10px;flex-wrap:wrap}
.download-meta span{
  font-size:13px;padding:6px 14px;border-radius:20px;
  border:1px solid rgba(232,226,242,.3);color:#c9bede;background:rgba(0,0,0,.25);
}
.download-action{text-align:center}
.download-tip{margin-top:18px;color:#c9bede;font-size:13.5px;letter-spacing:.05em}
.download-tip b{color:var(--gold-l)}
/* ===== 首屏下载按钮二维码浮层（仅支持悬停的电脑端显示） ===== */
.hero-qr-wrap{position:relative;display:inline-block}
.hero-qr-pop{
  position:absolute;top:calc(100% + 16px);left:50%;
  transform:translateX(-50%) translateY(8px);
  background:#fff;border-radius:14px;padding:10px 10px 8px;
  box-shadow:0 18px 46px rgba(0,0,0,.6),0 0 0 1px rgba(245,194,107,.45);
  opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s;
  z-index:30;
}
.hero-qr-pop::before{
  content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) rotate(45deg);
  width:14px;height:14px;background:#fff;
}
.hero-qr-wrap:hover .hero-qr-pop,
.hero-qr-wrap:focus-within .hero-qr-pop{
  opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);
}
.hero-qr-title{
  display:block;text-align:center;color:#444;font-size:11px;
  letter-spacing:.16em;margin:2px 4px 7px;white-space:nowrap;font-weight:700;
}

/* ===== 二维码容器 ===== */
.qrcode-box{margin:22px auto 0;width:170px;padding:12px;border-radius:14px;background:#fff}
.qr-hint{display:block;text-align:center;font-size:11px;color:#888;letter-spacing:.2em;margin-bottom:7px}
.qr-box{position:relative;width:100%;aspect-ratio:1;border-radius:8px;overflow:hidden;background:#fff}
.qr-box canvas,.qr-box img,.qr-box table{margin:0 auto;display:block}
.qr-box-hero{width:150px}
.qr-box-download{width:144px}
/* 库加载失败时的占位回退 */
.qr-fallback{
  width:100%;height:100%;border-radius:8px;
  background-color:#f6f6f6;
  background-image:
    linear-gradient(45deg,#ddd 25%,transparent 25%,transparent 75%,#ddd 75%,#ddd),
    linear-gradient(45deg,#ddd 25%,transparent 25%,transparent 75%,#ddd 75%,#ddd);
  background-size:22px 22px;background-position:0 0,11px 11px;
  display:flex;align-items:center;justify-content:center;
  flex-direction:column;gap:4px;color:#888;font-size:11px;
  text-align:center;padding:0 8px;line-height:1.5;
}
.qr-fallback b{color:#c98f36}

/* ===== 页脚 ===== */
.site-footer{
  background:#140f1c;border-top:1px solid rgba(245,194,107,.15);
  padding:0 0 30px;text-align:center;
}
.footer-links{
  padding:15px 20px 17px;
  border-bottom:1px solid rgba(245,194,107,.12);
}
.footer-links-label{
  color:#9a8db3;font-size:13px;letter-spacing:.2em;margin-right:8px;
}
.footer-links a{
  display:inline-block;color:#b3a7c9;font-size:13px;
  margin:3px 9px;transition:color .3s;position:relative;
}
.footer-links a:hover{color:var(--gold-l);text-shadow:0 0 10px rgba(245,194,107,.4)}
.site-footer .container{padding-top:32px}
.footer-brand{display:flex;align-items:center;justify-content:center;gap:12px}
.footer-brand img{width:34px;height:34px;border-radius:8px}
.footer-brand span{font-size:20px;font-weight:800;color:var(--gold-l);letter-spacing:.1em}
.footer-slogan{margin-top:10px;color:#b3a7c9;font-size:14px;letter-spacing:.15em}
.footer-legal{
  max-width:900px;margin:18px auto 0;color:#7c7192;font-size:11.5px;
  line-height:1.9;padding:0 20px;
}
.footer-copy{margin-top:12px;color:#6a5f80;font-size:12px}

/* ===== 视频弹窗 ===== */
.video-modal{
  position:fixed;inset:0;z-index:2000;display:none;
  align-items:center;justify-content:center;
  background:rgba(5,3,9,.92);backdrop-filter:blur(8px);padding:20px;
}
.video-modal.open{display:flex}
.video-modal-box{position:relative;width:min(960px,94vw)}
.video-modal-box video{width:100%;max-height:82vh;border-radius:14px;background:#000;outline:none}
.video-close{
  position:absolute;top:-48px;right:0;background:none;border:none;
  color:var(--gold-l);font-size:34px;cursor:pointer;transition:.3s;line-height:1;
}
.video-close:hover{transform:rotate(90deg)}

/* ===== 返回顶部 ===== */
.back-top{
  position:fixed;right:24px;bottom:28px;z-index:900;
  width:46px;height:46px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--gold),var(--gold-d));color:#241400;
  font-size:20px;font-weight:900;box-shadow:0 8px 24px rgba(245,194,107,.45);
  opacity:0;visibility:hidden;transform:translateY(16px);transition:all .35s;
}
.back-top.show{opacity:1;visibility:visible;transform:none}
.back-top:hover{transform:translateY(-4px)}

/* ===== 滚动显现动画 ===== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s ease,transform .8s ease;transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .slider-btn.prev{left:-8px}
  .slider-btn.next{right:-8px}
  .dragon-inner{grid-template-columns:1fr;gap:34px}
  .dragon-visual img{height:340px}
  .hl-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .main-nav{
    position:fixed;top:0;right:-100%;height:100vh;width:78%;max-width:330px;
    flex-direction:column;background:rgba(16,11,24,.98);padding:90px 30px 30px;
    transition:right .4s ease;gap:6px;box-shadow:-20px 0 60px rgba(0,0,0,.6);
    border-left:1px solid rgba(245,194,107,.2);
  }
  .main-nav.open{right:0}
  .main-nav a{padding:15px 12px;font-size:17px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-toggle{display:flex}
  .btn-download-nav{margin-left:auto}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .welfare-grid{grid-template-columns:repeat(2,1fr)}
  .download-inner{grid-template-columns:1fr;text-align:center}
  .download-meta{justify-content:center}
  .section{padding:66px 0}
  .btn-download-nav{display:none;}
}
@media (hover:none){.hero-qr-pop{display:none}}
@media (max-width:640px){
  .feature-grid{grid-template-columns:1fr}
  .welfare-grid{grid-template-columns:1fr}
  .hl-grid{grid-template-columns:1fr 1fr;gap:14px}
  .media-gallery{grid-template-columns:repeat(2,1fr);gap:12px}
  .media-item img{height:150px}
  .class-card{grid-template-columns:1fr}
  .class-img{min-height:230px}
  .class-info{padding:24px 22px}
  .class-img::after{background:linear-gradient(transparent 60%,#1d1626)}
  .hero-title{letter-spacing:.1em}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{padding:14px 30px;font-size:15px}
  .section-head h2::before,.section-head h2::after{display:none}
  .download{text-align:center}
  .dl-btns{flex-direction:column;width:100%;max-width:340px;margin:0 auto}
  .btn-platform{width:100%;min-width:0;justify-content:center;text-align:center;padding:14px 24px}
  .platform-text{align-items:flex-start;text-align:left}
  .brand-name{font-size:18px}
  .back-top{right:14px;bottom:16px}
  .hero-marquee{margin-top:32px}
}