:root{
  --bg:#0d0e12;
  --bg-soft:#14161d;
  --card:#181b24;
  --card-hover:#1f2330;
  --line:#282c3a;
  --text:#e8eaf0;
  --text-dim:#9aa0b4;
  --text-faint:#6c7288;
  --orange:#ff6a00;
  --orange-soft:#ff8a3d;
  --red:#f5455c;
  --neon:#ffd84d;
  --radius:14px;
  --radius-sm:9px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(ellipse 60% 40% at 12% -5%, rgba(255,106,0,.13), transparent 60%),
    radial-gradient(ellipse 50% 45% at 92% 8%, rgba(245,69,92,.10), transparent 60%);
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
ul,ol{list-style:none;}
button{font-family:inherit;}

/* ============ 通用 ============ */
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
.section{
  padding:64px 0;
  position:relative;
  z-index:1;
}
.section-alt{
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.017),transparent);
}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.sec-title{
  font-size:24px;
  font-weight:800;
  letter-spacing:.5px;
  display:flex;
  align-items:center;
  gap:10px;
}
.sec-title::before{
  content:"";
  width:5px;
  height:22px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--orange),var(--red));
  display:inline-block;
}
.sec-sub{
  color:var(--text-dim);
  font-size:13.5px;
}
.sec-more{
  font-size:13px;
  color:var(--text-dim);
  border:1px solid var(--line);
  border-radius:99px;
  padding:6px 16px;
  transition:.2s;
  white-space:nowrap;
}
.sec-more:hover,.sec-more:focus-visible{
  color:var(--orange);
  border-color:var(--orange);
  outline:none;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(13,14,18,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:62px;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:9px;
  font-weight:800;
  font-size:18px;
  letter-spacing:.4px;
  flex-shrink:0;
}
.brand img{
  height:30px;
  width:auto;
  border-radius:6px;
}
.brand-tag{
  font-size:10px;
  font-weight:700;
  color:var(--bg);
  background:var(--orange);
  border-radius:4px;
  padding:1px 5px;
  letter-spacing:.5px;
  transform:translateY(-6px);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:6px;
}
.main-nav a{
  font-size:14px;
  color:var(--text-dim);
  padding:7px 12px;
  border-radius:8px;
  transition:.18s;
  white-space:nowrap;
}
.main-nav a:hover,.main-nav a:focus-visible{
  color:var(--text);
  background:rgba(255,255,255,.06);
  outline:none;
}
.main-nav a.is-active{
  color:var(--orange);
  font-weight:700;
}
.nav-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  display:flex;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:99px;
  padding:0 4px 0 14px;
  height:36px;
  transition:.22s;
}
.search-box input{
  background:transparent;
  border:none;
  outline:none;
  color:var(--text);
  font-size:13.5px;
  width:118px;
  transition:width .25s;
}
.search-box input::placeholder{color:var(--text-faint);}
.search-box input:focus{width:160px;}
.search-box:focus-within{
  border-color:var(--orange);
  box-shadow:0 0 0 3px rgba(255,106,0,.16);
}
.search-btn{
  background:var(--orange);
  border:none;
  color:#fff;
  height:28px;
  padding:0 13px;
  border-radius:99px;
  font-size:12.5px;
  cursor:pointer;
  transition:.2s;
}
.search-btn:hover{background:var(--orange-soft);}
.btn-login{
  height:36px;
  padding:0 18px;
  border-radius:99px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text);
  font-size:13.5px;
  cursor:pointer;
  transition:.2s;
  white-space:nowrap;
}
.btn-login:hover{
  border-color:var(--orange);
  color:var(--orange);
}
.btn-download-nav{
  height:36px;
  padding:0 18px;
  border-radius:99px;
  border:none;
  background:linear-gradient(120deg,var(--orange),var(--red));
  color:#fff;
  font-size:13.5px;
  font-weight:700;
  cursor:pointer;
  transition:.2s;
  box-shadow:0 4px 16px rgba(255,106,0,.28);
  white-space:nowrap;
}
.btn-download-nav:hover{
  transform:translateY(-1px);
  box-shadow:0 6px 22px rgba(255,106,0,.42);
}
.nav-toggle{display:none;}
.nav-burger{display:none;}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 64px;
  z-index:1;
}
.hero-grid-bg{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(ellipse 75% 65% at 50% 30%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 75% 65% at 50% 30%,#000 20%,transparent 78%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--orange-soft);
  border:1px solid rgba(255,106,0,.35);
  background:rgba(255,106,0,.09);
  border-radius:99px;
  padding:5px 15px;
  margin-bottom:22px;
  letter-spacing:.4px;
}
.hero-badge .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--orange);
  box-shadow:0 0 8px var(--orange);
  animation:pulse 1.8s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.82);}
}
.hero h1{
  font-size:52px;
  line-height:1.18;
  font-weight:900;
  letter-spacing:1px;
  max-width:780px;
  margin-bottom:20px;
}
.hero h1 .hl{
  background:linear-gradient(100deg,var(--orange) 10%,var(--neon) 90%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero h1 .hl-red{
  background:linear-gradient(100deg,#ff8a3d,#f5455c);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero p.lead{
  color:var(--text-dim);
  font-size:16.5px;
  max-width:620px;
  margin-bottom:32px;
}
.hero-cta{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:44px;
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:50px;
  padding:0 30px;
  border-radius:12px;
  background:linear-gradient(120deg,var(--orange),var(--red));
  color:#fff;
  font-size:15.5px;
  font-weight:700;
  border:none;
  cursor:pointer;
  box-shadow:0 8px 28px rgba(255,106,0,.32);
  transition:.22s;
}
.btn-primary:hover,.btn-primary:focus-visible{
  transform:translateY(-2px);
  box-shadow:0 12px 36px rgba(255,106,0,.48);
  outline:none;
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 4px 14px rgba(255,106,0,.3);
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:50px;
  padding:0 28px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text);
  font-size:15.5px;
  font-weight:600;
  cursor:pointer;
  transition:.22s;
}
.btn-ghost:hover,.btn-ghost:focus-visible{
  border-color:var(--orange);
  color:var(--orange);
  background:rgba(255,106,0,.07);
  outline:none;
}
.hero-stats{
  display:flex;
  gap:44px;
  flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding-top:28px;
}
.hero-stat b{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--orange-soft);
  letter-spacing:.5px;
}
.hero-stat span{
  font-size:12.5px;
  color:var(--text-faint);
}

/* ============ 弹幕区 ============ */
.danmaku-stage{
  position:relative;
  height:96px;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.022),transparent);
}
.danmaku-track{
  position:absolute;
  white-space:nowrap;
  display:flex;
  gap:34px;
  will-change:transform;
}
.danmaku-track span{
  font-size:14px;
  color:rgba(232,234,240,.76);
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.07);
  border-radius:99px;
  padding:5px 15px;
  white-space:nowrap;
}
.danmaku-track span.accent{
  color:var(--neon);
  border-color:rgba(255,216,77,.28);
  background:rgba(255,216,77,.07);
}
.danmaku-track span.hot{
  color:#ffb08a;
  border-color:rgba(255,106,0,.3);
  background:rgba(255,106,0,.08);
}
.track-1{top:22px;animation:scroll-left 38s linear infinite;}
.track-2{top:56px;animation:scroll-left 52s linear infinite reverse;}
@keyframes scroll-left{
  from{transform:translateX(0);}
  to{transform:translateX(-50%);}
}

/* ============ 排行榜 Tab ============ */
.rank-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.rank-tabs{
  display:flex;
  gap:4px;
  padding:14px 18px 0;
  border-bottom:1px solid var(--line);
  flex-wrap:wrap;
}
.rank-tabs input[type="radio"]{
  position:absolute;
  opacity:0;
  pointer-events:none;
}
.rank-tabs label{
  cursor:pointer;
  font-size:14px;
  padding:9px 20px;
  border-radius:9px 9px 0 0;
  color:var(--text-dim);
  transition:.18s;
  border-bottom:2px solid transparent;
  user-select:none;
}
.rank-tabs label:hover{color:var(--text);background:rgba(255,255,255,.04);}
.rank-tabs input:checked + label{
  color:var(--orange);
  font-weight:700;
  border-bottom-color:var(--orange);
  background:rgba(255,106,0,.06);
}
.rank-tabs input:focus-visible + label{
  outline:2px solid var(--orange);
  outline-offset:-2px;
}
.rank-body{padding:10px 18px 18px;}
.rank-item{
  display:none;
}
#tab-anime:checked ~ .rank-body .rank-anime,
#tab-game:checked ~ .rank-body .rank-game,
#tab-origin:checked ~ .rank-body .rank-origin,
#tab-live:checked ~ .rank-body .rank-live{
  display:block;
}
.rank-row{
  display:flex;
  align-items:center;
  gap:16px;
  padding:13px 4px;
  border-bottom:1px dashed rgba(255,255,255,.06);
  transition:.18s;
}
.rank-row:last-child{border-bottom:none;}
.rank-row:hover{
  background:rgba(255,255,255,.03);
  border-radius:8px;
}
.rank-num{
  width:30px;
  text-align:center;
  font-size:17px;
  font-weight:800;
  color:var(--text-faint);
  flex-shrink:0;
  font-style:italic;
}
.rank-num.top1{color:#ffd84d;}
.rank-num.top2{color:#c9d0e0;}
.rank-num.top3{color:#e8a06a;}
.rank-info{flex:1;min-width:0;}
.rank-info b{
  display:block;
  font-size:14.5px;
  font-weight:600;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.rank-info small{
  color:var(--text-faint);
  font-size:12px;
}
.rank-hot{
  font-size:12.5px;
  color:var(--orange-soft);
  flex-shrink:0;
  font-weight:600;
}
.tag-pill{
  display:inline-block;
  font-size:11px;
  color:var(--text-dim);
  border:1px solid var(--line);
  border-radius:99px;
  padding:1px 9px;
  margin-left:8px;
  vertical-align:1px;
}

/* ============ 通用卡片网格 ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.grid-4{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .24s cubic-bezier(.2,.7,.3,1),border-color .24s,box-shadow .24s;
}
.card:hover{
  transform:translateY(-5px);
  border-color:rgba(255,106,0,.42);
  box-shadow:0 14px 34px rgba(0,0,0,.45);
}
.card-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#101219;
}
.card-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.card:hover .card-cover img{transform:scale(1.055);}
.cover-badge{
  position:absolute;
  left:10px;
  top:10px;
  font-size:11px;
  font-weight:700;
  color:#fff;
  background:rgba(245,69,92,.92);
  border-radius:5px;
  padding:2px 9px;
  letter-spacing:.3px;
  backdrop-filter:blur(4px);
}
.cover-badge.is-orange{background:rgba(255,106,0,.92);}
.cover-badge.is-dark{background:rgba(10,11,15,.76);color:#e8eaf0;}
.cover-badge.is-live{background:rgba(245,69,92,.92);}
.cover-badge.is-live::before{
  content:"";
  display:inline-block;
  width:5px;height:5px;
  border-radius:50%;
  background:#fff;
  margin-right:5px;
  vertical-align:1px;
  animation:pulse 1.4s infinite;
}
.card-body{padding:14px 15px 16px;}
.card-body h3,.card-body h4{
  font-size:14.5px;
  font-weight:700;
  line-height:1.45;
  margin-bottom:7px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:12px;
  color:var(--text-faint);
  flex-wrap:wrap;
}
.card-meta .up{color:var(--text-dim);}
.card-actions{
  display:flex;
  gap:8px;
  margin-top:12px;
}
.mini-btn{
  flex:1;
  font-size:12.5px;
  height:30px;
  border-radius:8px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-dim);
  cursor:pointer;
  transition:.18s;
}
.mini-btn:hover,.mini-btn:focus-visible{
  color:var(--orange);
  border-color:var(--orange);
  background:rgba(255,106,0,.08);
  outline:none;
}
.mini-btn:active{transform:scale(.97);}
.mini-btn.primary{
  color:#fff;
  background:linear-gradient(120deg,var(--orange),var(--red));
  border-color:transparent;
}
.mini-btn.primary:hover{
  box-shadow:0 4px 14px rgba(255,106,0,.4);
  color:#fff;
}

/* 直播卡片 */
.live-card .card-cover{aspect-ratio:16/10;}
.live-tag{
  position:absolute;
  right:10px;
  bottom:10px;
  font-size:11px;
  color:#fff;
  background:rgba(10,11,15,.72);
  border-radius:5px;
  padding:2px 8px;
  backdrop-filter:blur(4px);
}

/* ============ 话题讨论区 ============ */
.topic-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.topic-card{
  display:flex;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:14px;
  transition:.22s;
}
.topic-card:hover{
  border-color:rgba(255,106,0,.4);
  background:var(--card-hover);
  transform:translateY(-3px);
}
.topic-thumb{
  width:148px;
  flex-shrink:0;
  aspect-ratio:4/3;
  border-radius:var(--radius-sm);
  overflow:hidden;
  background:#101219;
}
.topic-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .45s;
}
.topic-card:hover .topic-thumb img{transform:scale(1.06);}
.topic-main{flex:1;min-width:0;display:flex;flex-direction:column;}
.topic-main h3{
  font-size:15px;
  font-weight:700;
  margin-bottom:6px;
  line-height:1.42;
}
.topic-main p{
  font-size:12.8px;
  color:var(--text-dim);
  line-height:1.55;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.topic-foot{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:12px;
  color:var(--text-faint);
  margin-top:auto;
  flex-wrap:wrap;
}
.topic-foot .author{color:var(--text-dim);}
.topic-reacts{
  display:flex;
  gap:8px;
  margin-left:auto;
}
.react-btn{
  font-size:11.5px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-dim);
  border-radius:99px;
  padding:3px 10px;
  cursor:pointer;
  transition:.18s;
}
.react-btn:hover,.react-btn:focus-visible{
  color:var(--orange);
  border-color:var(--orange);
  background:rgba(255,106,0,.08);
  outline:none;
}
.react-btn:active{transform:scale(.95);}

/* ============ 评论区 ============ */
.comment-box{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
}
.comment-input-row{
  display:flex;
  gap:12px;
  align-items:flex-start;
  margin-bottom:24px;
  flex-wrap:wrap;
}
.avatar{
  width:38px;height:38px;
  border-radius:50%;
  background:linear-gradient(140deg,var(--orange),var(--red));
  flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#fff;
}
.comment-input{
  flex:1;
  min-width:180px;
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--text);
  font-size:14px;
  font-family:inherit;
  padding:10px 14px;
  resize:vertical;
  min-height:52px;
  outline:none;
  transition:.2s;
}
.comment-input::placeholder{color:var(--text-faint);}
.comment-input:focus{
  border-color:var(--orange);
  box-shadow:0 0 0 3px rgba(255,106,0,.15);
  background:#181b24;
}
.comment-tools{
  display:flex;
  gap:8px;
  align-items:center;
  flex-wrap:wrap;
  padding-top:10px;
}
.emoji-btn{
  width:36px;height:36px;
  border-radius:9px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-dim);
  font-size:16px;
  cursor:pointer;
  transition:.18s;
}
.emoji-btn:hover,.emoji-btn:focus-visible{
  border-color:var(--orange);
  color:var(--orange);
  outline:none;
}
.send-btn{
  margin-left:auto;
  height:36px;
  padding:0 24px;
  border-radius:9px;
  border:none;
  background:linear-gradient(120deg,var(--orange),var(--red));
  color:#fff;
  font-size:13.5px;
  font-weight:700;
  cursor:pointer;
  transition:.2s;
}
.send-btn:hover{box-shadow:0 5px 18px rgba(255,106,0,.4);}
.send-btn:active{transform:scale(.97);}
.comment-item{
  display:flex;
  gap:12px;
  padding:16px 0;
  border-top:1px solid rgba(255,255,255,.055);
}
.comment-item:first-of-type{border-top:none;}
.comment-name{
  font-size:13px;
  color:var(--orange-soft);
  font-weight:600;
  margin-bottom:3px;
}
.comment-name small{
  color:var(--text-faint);
  font-weight:400;
  margin-left:8px;
  font-size:11.5px;
}
.comment-text{
  font-size:13.5px;
  color:var(--text-dim);
  line-height:1.6;
}
.comment-actions{
  display:flex;
  gap:14px;
  margin-top:8px;
  font-size:12px;
  color:var(--text-faint);
}

/* ============ 投票区 ============ */
.vote-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.vote-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
}
.vote-card h3{
  font-size:16px;
  font-weight:700;
  margin-bottom:5px;
}
.vote-card .vote-note{
  font-size:12.5px;
  color:var(--text-faint);
  margin-bottom:18px;
}
.vote-option{margin-bottom:14px;}
.vote-option:last-child{margin-bottom:0;}
.vote-option-top{
  display:flex;
  justify-content:space-between;
  font-size:13.5px;
  margin-bottom:6px;
  color:var(--text-dim);
}
.vote-option-top b{color:var(--text);font-weight:600;}
.vote-bar{
  height:9px;
  border-radius:99px;
  background:rgba(255,255,255,.06);
  overflow:hidden;
}
.vote-bar span{
  display:block;
  height:100%;
  border-radius:99px;
  background:linear-gradient(90deg,var(--orange),var(--red));
}
.vote-bar span.alt{
  background:linear-gradient(90deg,#4d8dff,#8b5cf6);
}

/* ============ 移动客户端内页预览 ============ */
.app-preview{
  background:
    radial-gradient(ellipse 55% 60% at 18% 12%,rgba(255,106,0,.13),transparent 65%),
    radial-gradient(ellipse 50% 55% at 88% 82%,rgba(245,69,92,.11),transparent 65%),
    var(--bg-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:1;
}
.phone-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  margin-bottom:40px;
}
.phone-frame{
  background:#0a0b0f;
  border:6px solid #23262f;
  border-radius:26px;
  overflow:hidden;
  box-shadow:0 18px 44px rgba(0,0,0,.55);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),border-color .3s;
  position:relative;
}
.phone-frame:hover{
  transform:translateY(-8px);
  border-color:rgba(255,106,0,.5);
}
.phone-screen{
  aspect-ratio:9/16;
  overflow:hidden;
  background:#12141b;
  position:relative;
}
.phone-screen img{
  width:100%;height:100%;object-fit:cover;
}
.phone-caption{
  text-align:center;
  font-size:12.5px;
  color:var(--text-dim);
  padding:12px 6px 14px;
  border-top:1px solid rgba(255,255,255,.055);
  background:#0a0b0f;
}
.phone-caption b{
  display:block;
  color:var(--text);
  font-size:13.5px;
  margin-bottom:2px;
}
.app-download-panel{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:28px;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px;
  align-items:center;
}
.app-download-panel h3{
  font-size:21px;
  font-weight:800;
  margin-bottom:10px;
}
.app-download-panel p{
  color:var(--text-dim);
  font-size:14px;
  margin-bottom:18px;
  max-width:440px;
}
.app-feats{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
  margin-bottom:22px;
}
.app-feats li{
  font-size:13px;
  color:var(--text-dim);
}
.app-feats li::before{
  content:"";
  display:inline-block;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--orange);
  margin-right:7px;
  vertical-align:2px;
  transform:rotate(45deg);
}
.qr-side{
  text-align:center;
  border-left:1px dashed var(--line);
  padding-left:26px;
}
.qr-box{
  width:132px;
  height:132px;
  margin:0 auto 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:
    linear-gradient(90deg,rgba(255,255,255,.07) 50%,transparent 50%),
    linear-gradient(rgba(255,255,255,.07) 50%,transparent 50%),
    #12141b;
  background-size:16px 16px,16px 16px,auto;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  color:var(--text-faint);
  letter-spacing:.5px;
}
.qr-side small{
  color:var(--text-faint);
  font-size:11.5px;
  line-height:1.6;
  display:block;
}
.qr-side small b{color:var(--text-dim);}

/* ============ 数据条 ============ */
.data-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.data-cell{
  background:var(--card);
  padding:26px 20px;
  text-align:center;
  transition:.22s;
}
.data-cell:hover{background:var(--card-hover);}
.data-cell b{
  display:block;
  font-size:28px;
  font-weight:900;
  color:var(--orange-soft);
  letter-spacing:.5px;
  margin-bottom:4px;
}
.data-cell span{
  font-size:12.5px;
  color:var(--text-faint);
}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  padding:44px 0 30px;
  position:relative;
  z-index:1;
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  margin-bottom:34px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:9px;
  font-weight:800;
  font-size:17px;
  margin-bottom:12px;
}
.footer-brand img{height:28px;width:auto;border-radius:5px;}
.footer-desc{
  font-size:12.8px;
  color:var(--text-faint);
  line-height:1.75;
  max-width:300px;
}
.footer-col h4{
  font-size:13px;
  color:var(--text-dim);
  font-weight:700;
  margin-bottom:12px;
  letter-spacing:.4px;
}
.footer-col a{
  display:block;
  font-size:12.8px;
  color:var(--text-faint);
  margin-bottom:8px;
  transition:.18s;
}
.footer-col a:hover{color:var(--orange);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.06);
  padding-top:20px;
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:11.8px;
  color:var(--text-faint);
  line-height:1.8;
}
.footer-bottom a{color:var(--text-faint);}
.footer-bottom a:hover{color:var(--text-dim);}
.footer-time{opacity:.78;}
.top-link{
  color:var(--text-dim);
  border:1px solid var(--line);
  border-radius:99px;
  padding:3px 14px;
  transition:.18s;
}
.top-link:hover{color:var(--orange);border-color:var(--orange);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero h1{font-size:42px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .phone-row{grid-template-columns:repeat(4,1fr);gap:16px;}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-col:last-child{display:none;}
  .app-download-panel{grid-template-columns:1fr;}
  .qr-side{border-left:none;border-top:1px dashed var(--line);padding-left:0;padding-top:24px;}
}

@media (max-width:768px){
  .section{padding:46px 0;}
  .main-nav{display:none;}
  .search-box{display:none;}
  .btn-login{display:none;}
  .btn-download-nav{height:32px;padding:0 14px;font-size:12.5px;}
  .nav-burger{
    display:flex;
    flex-direction:column;
    justify-content:center;
    gap:4px;
    width:36px;height:36px;
    border-radius:9px;
    border:1px solid var(--line);
    cursor:pointer;
    padding:0 9px;
    order:-1;
  }
  .nav-burger span{
    display:block;
    height:2px;
    background:var(--text-dim);
    border-radius:2px;
    transition:.22s;
  }
  .nav-toggle:checked ~ .nav-mobile{display:block;}
  .nav-toggle:checked ~ .nav-burger span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle:checked ~ .nav-burger span:nth-child(2){opacity:0;}
  .nav-toggle:checked ~ .nav-burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
  .nav-mobile{
    display:none;
    position:absolute;
    top:62px;left:0;right:0;
    background:rgba(16,18,24,.98);
    border-bottom:1px solid var(--line);
    padding:12px 20px 18px;
    backdrop-filter:blur(12px);
  }
  .nav-mobile a{
    display:block;
    padding:11px 4px;
    font-size:14.5px;
    color:var(--text-dim);
    border-bottom:1px solid rgba(255,255,255,.05);
  }
  .nav-mobile a:last-child{border-bottom:none;}
  .nav-mobile a:active{color:var(--orange);}
  .nav-mobile .m-search{
    display:flex;
    align-items:center;
    gap:8px;
    margin-top:14px;
  }
  .nav-mobile .m-search input{
    flex:1;
    height:36px;
    border-radius:99px;
    border:1px solid var(--line);
    background:var(--card);
    color:var(--text);
    padding:0 14px;
    outline:none;
    font-size:13.5px;
  }
  .nav-mobile .m-search input:focus{border-color:var(--orange);}

  .hero{padding:52px 0 44px;}
  .hero h1{font-size:31px;letter-spacing:.4px;}
  .hero p.lead{font-size:14.5px;}
  .hero-cta{gap:10px;}
  .btn-primary,.btn-ghost{
    height:46px;padding:0 22px;font-size:14.5px;flex:1;
    justify-content:center;
  }
  .hero-stats{gap:26px;padding-top:22px;}
  .hero-stat b{font-size:21px;}
  .hero-stat span{font-size:11.5px;}

  .sec-title{font-size:20px;}
  .grid-4,.grid-3,.topic-list,.vote-grid{grid-template-columns:1fr;}
  .phone-row{
    display:flex;
    overflow-x:auto;
    gap:14px;
    padding-bottom:12px;
    scroll-snap-type:x mandatory;
    -webkit-overflow-scrolling:touch;
  }
  .phone-frame{
    min-width:63%;
    scroll-snap-align:start;
  }
  .phone-caption{font-size:12px;}
  .topic-card{flex-direction:row;}
  .topic-thumb{width:110px;}
  .data-strip{
    grid-template-columns:repeat(2,1fr);
  }
  .data-cell{padding:20px 12px;}
  .data-cell b{font-size:23px;}
  .rank-tabs label{padding:8px 14px;font-size:13px;}
  .rank-info small{display:block;}
  .footer-top{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{display:block;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .app-download-panel{padding:22px;}
  .app-download-panel h3{font-size:18px;}
  .danmaku-stage{height:80px;}
  .danmaku-track span{font-size:12.5px;padding:4px 12px;}
  .track-1{top:16px;}
  .track-2{top:48px;}
  .comment-input-row{gap:10px;}
  .avatar{width:32px;height:32px;font-size:12px;}
}
@media (max-width:768px){
  .hero h1{font-size:29px;}
  .phone-frame{min-width:74%;}
  .topic-thumb{width:96px;}
}