/* ============ 基础变量 ============ */
  :root{
    --bg:        #08090e;
    --bg-2:      #0f1119;
    --card:      #141824;
    --card-hover:#1b2030;
    --line:      #23293a;
    --text:      #eef0f8;
    --text-2:    #868da6;
    --primary:   #ff2e63;
    --primary-2: #a855f7;
    --accent:    #22d3ee;
    --radius:    16px;
    --container: 1200px;
  }

  *{ margin:0; padding:0; box-sizing:border-box; }
  html{ scroll-behavior:smooth; }

  body{
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  a{ color:inherit; text-decoration:none; }
  ul{ list-style:none; }
  img{ display:block; max-width:100%; }
  button{ font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
  input{ font-family:inherit; }

  .container{
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ============ 顶部导航 ============ */
  .header{
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(8,9,14,.72);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid transparent;
    transition: background .3s, border-color .3s;
  }
  .header.scrolled{
    background: rgba(8,9,14,.95);
    border-bottom-color: var(--line);
  }
  .header-inner{
    display: flex;
    align-items: center;
    gap: 28px;
    height: 70px;
  }

  .logo{
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }
  .logo-img{
    width: 42px; height: 42px;
    border-radius: 12px;
    object-fit: cover;
    background: #141824;
    box-shadow: 0 4px 16px rgba(255,46,99,.25);
  }
  .logo-text{
    font-size: 18px;
    font-weight: 800;
    letter-spacing: .5px;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .nav{
    display: flex;
    gap: 4px;
  }
  .nav a{
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14.5px;
    color: var(--text-2);
    transition: color .2s, background .2s;
  }
  .nav a:hover{ color: var(--text); background: rgba(255,255,255,.05); }
  .nav a.active { color: var(--primary); font-weight: 600; }

  .header-actions{
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 40px;
    padding: 0 22px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: transform .22s, box-shadow .25s, background .25s, border-color .25s;
  }
  .btn-primary{
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    box-shadow: 0 6px 22px rgba(255,46,99,.35);
  }
  .btn-primary:hover{
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(255,46,99,.48);
  }
  .btn-outline{
    color: var(--text);
    border: 1px solid var(--line);
    background: rgba(255,255,255,.03);
  }
  .btn-outline:hover{
    border-color: #3d455c;
    background: rgba(255,255,255,.06);
  }

  /* ============ 二维码悬停组件 ============ */
  .btn-download{
    position: relative;
  }
  .qr-popover{
    position: absolute;
    width: 130px;
    padding: 10px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 12px 36px rgba(0,0,0,.6);
    opacity: 0;
    visibility: hidden;
    transition: all .3s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    z-index: 150;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
  .qr-popover img{
    width: 100%;
    border-radius: 8px;
    background: #f0f0f0;
  }
  .qr-popover span{
    font-size: 12px;
    color: #333;
    font-weight: 600;
    white-space: nowrap;
  }
  .qr-popover.down{
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
  }
  .btn-download:hover .qr-popover.down{
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }
  .qr-popover.up{
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
  }
  .btn-download:hover .qr-popover.up{
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }

  /* ============ 侧边栏与遮罩 ============ */
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(5px);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
  }
  .sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    height: 100%;
    background: var(--bg-2);
    border-right: 1px solid var(--line);
    z-index: 210;
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    box-shadow: 10px 0 40px rgba(0,0,0,0.5);
  }
  .sidebar.active {
    transform: translateX(0);
  }
  .sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 20px;
    border-bottom: 1px solid var(--line);
  }
  .sidebar-header h3 {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .sidebar-close {
    font-size: 20px;
    color: var(--text-2);
    transition: color 0.2s;
    padding: 4px;
  }
  .sidebar-close:hover {
    color: var(--text);
  }
  .sidebar-menu {
    padding: 16px 12px;
    flex: 1;
    overflow-y: auto;
  }
  .sidebar-menu li {
    margin-bottom: 6px;
  }
  .sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 15px;
    color: var(--text-2);
    transition: all 0.2s;
  }
  .sidebar-menu a:hover {
    background: rgba(255,255,255,0.06);
    color: var(--text);
  }
  .sidebar-menu a.active {
    background: rgba(255,46,99,0.12);
    color: var(--primary);
    font-weight: 600;
  }

  /* ============ Hero ============ */
  .hero{
    position: relative;
    padding: 160px 0 100px;
  }
  .hero::before{
    content:"";
    position: absolute;
    top: -240px; left: 50%;
    transform: translateX(-50%);
    width: 1000px; height: 800px;
    background: radial-gradient(circle, rgba(255,46,99,.16) 0%, rgba(168,85,247,.09) 40%, transparent 68%);
    pointer-events: none;
    z-index: 0;
  }
  .hero::after{
    content:"";
    position: absolute;
    bottom: -200px; right: -150px;
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(34,211,238,.06) 0%, transparent 65%);
    pointer-events: none;
    z-index: 0;
  }

  .hero-inner{
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 60px;
    align-items: center;
  }

  .hero-tag{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 16px;
    margin-bottom: 24px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: .5px;
    color: var(--accent);
    background: rgba(34,211,238,.08);
    border: 1px solid rgba(34,211,238,.2);
  }
  .hero-tag i{
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    animation: blink 1.6s infinite;
  }
  @keyframes blink{
    0%,100%{ opacity:1; }
    50%{ opacity:.3; }
  }

  .hero h1{
    font-size: 46px;
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -.5px;
    margin-bottom: 20px;
  }
  .hero h1 span{
    background: linear-gradient(100deg, var(--primary) 0%, var(--primary-2) 55%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .hero-desc{
    font-size: 16px;
    color: var(--text-2);
    max-width: 520px;
    margin-bottom: 34px;
    line-height: 1.75;
  }

  .hero-actions{
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 36px;
  }
  .hero-actions .btn{
    height: 52px;
    padding: 0 32px;
    font-size: 15px;
    border-radius: 14px;
  }

  .hero-stats{
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
  }
  .stat-item{ display: flex; flex-direction: column; }
  .stat-num{
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
  }
  .stat-label{
    font-size: 12.5px;
    color: var(--text-2);
    margin-top: 2px;
  }

  .hero-visual{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 480px;
  }

  .phone{
    position: relative;
    width: 230px;
    aspect-ratio: 9 / 19;
    border-radius: 32px;
    background: linear-gradient(160deg, #1c2030, #0f1118);
    border: 2px solid rgba(255,255,255,.08);
    box-shadow: 0 40px 80px rgba(0,0,0,.7);
    overflow: hidden;
    transition: transform .5s ease;
  }
  .phone-back{
    position: absolute;
    transform: translate(50px, 30px) rotate(6deg) scale(.9);
    opacity: .7;
    z-index: 0;
  }
  .phone-front{
    position: relative;
    z-index: 1;
    transform: rotate(-3deg);
  }
  .phone-front:hover{ transform: rotate(0deg) translateY(-8px); }

  .phone-notch{
    position: absolute;
    top: 10px; left: 50%;
    transform: translateX(-50%);
    width: 80px; height: 20px;
    border-radius: 999px;
    background: #08090e;
    z-index: 2;
  }
  .phone-screen{
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    background: radial-gradient(circle at 50% 30%, rgba(255,46,99,.1), transparent 60%),
                linear-gradient(180deg, #11131c, #08090e);
  }
  .phone-screen img{
    width: 100%; height: 100%;
    object-fit: cover;
    opacity: .85;
  }
  .phone-screen .ph-text{
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-size: 12px;
    color: #4a5169;
    text-align: center;
    padding: 30px;
    line-height: 1.8;
  }

  .visual-badge{
    position: absolute;
    padding: 8px 16px;
    border-radius: 12px;
    font-size: 12.5px;
    font-weight: 600;
    background: rgba(20,24,36,.85);
    border: 1px solid var(--line);
    backdrop-filter: blur(10px);
    white-space: nowrap;
    z-index: 2;
  }
  .visual-badge.b1{
    top: 10%; left: -10px;
    color: var(--accent);
    border-color: rgba(34,211,238,.25);
    animation: float 4s ease-in-out infinite;
  }
  .visual-badge.b2{
    bottom: 14%; right: -10px;
    color: var(--primary);
    border-color: rgba(255,46,99,.25);
    animation: float 4s ease-in-out .8s infinite;
  }
  @keyframes float{
    0%,100%{ transform: translateY(0); }
    50%{ transform: translateY(-10px); }
  }

  /* ============ 通用区块 ============ */
  .section{ padding: 90px 0; }
  .section-head{
    text-align: center;
    max-width: 640px;
    margin: 0 auto 52px;
  }
  .section-head .eyebrow{
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 14px;
  }
  .section-head h2{
    font-size: 34px;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -.3px;
    margin-bottom: 14px;
  }
  .section-head p{
    font-size: 15px;
    color: var(--text-2);
  }

  /* ============ 核心功能 ============ */
  .features-grid{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .feature-card{
    padding: 36px 30px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--line);
    transition: transform .3s, border-color .3s, background .3s, box-shadow .3s;
  }
  .feature-card:hover{
    transform: translateY(-6px);
    background: var(--card-hover);
    border-color: rgba(255,46,99,.3);
    box-shadow: 0 20px 44px rgba(0,0,0,.45);
  }

  .feature-icon{
    width: 54px; height: 54px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    margin-bottom: 24px;
    background: linear-gradient(135deg, rgba(255,46,99,.15), rgba(168,85,247,.1));
    border: 1px solid rgba(255,46,99,.15);
  }
  .feature-icon svg{
    width: 26px; height: 26px;
    stroke: var(--primary);
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .feature-card h3{
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
  }
  .feature-card p{
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.75;
  }

  /* ============ 热门直播 ============ */
  .live-grid{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
  }

  .live-card{
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .3s, box-shadow .3s, border-color .3s, background .3s;
  }
  .live-card:hover{
    transform: translateY(-5px);
    background: var(--card-hover);
    border-color: rgba(255,46,99,.35);
    box-shadow: 0 16px 36px rgba(0,0,0,.45);
  }

  .live-thumb{
    position: relative;
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: linear-gradient(135deg, #242a3a, #14171f);
  }
  .live-thumb img{
    width: 100%; height: 100%;
    object-fit: cover;
    background: linear-gradient(135deg, #242a3a, #14171f);
    transition: transform .45s ease;
  }
  .live-card:hover .live-thumb img{ transform: scale(1.06); }

  .badge-live{
    position: absolute;
    top: 10px; left: 10px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: rgba(255,46,99,.92);
    backdrop-filter: blur(4px);
  }
  .badge-live i{
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #fff;
    animation: pulse 1.4s infinite;
  }
  @keyframes pulse{
    0%,100%{ opacity:1; transform:scale(1); }
    50%{ opacity:.35; transform:scale(.75); }
  }

  .badge-views{
    position: absolute;
    right: 10px; bottom: 10px;
    padding: 3px 9px;
    border-radius: 8px;
    font-size: 12px;
    color: #dfe3ee;
    background: rgba(8,10,16,.68);
    backdrop-filter: blur(4px);
  }

  .live-body{ padding: 12px 14px 16px; }

  .live-title{
    font-size: 14.5px;
    font-weight: 600;
    line-height: 1.45;
    height: 42px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    transition: color .2s;
  }
  .live-card:hover .live-title{ color: var(--primary); }

  .live-meta{
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    font-size: 13px;
    color: var(--text-2);
  }
  .live-avatar{
    width: 24px; height: 24px;
    border-radius: 50%;
    object-fit: cover;
    background: linear-gradient(135deg,#3a4257,#242a3a);
    flex-shrink: 0;
  }
  .live-name{
    max-width: 90px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #b9bfd0;
  }
  .live-cat{
    margin-left: auto;
    padding: 2px 10px;
    border-radius: 6px;
    font-size: 11.5px;
    color: #9aa2b8;
    background: rgba(255,255,255,.06);
  }

  /* ============ 创作者榜单 ============ */
  .creator-list{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 14px;
  }

  .creator-item{
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--line);
    transition: transform .25s, background .25s, border-color .25s;
  }
  .creator-item:hover{
    transform: translateX(4px);
    background: var(--card-hover);
    border-color: rgba(168,85,247,.35);
  }

  .creator-rank{
    width: 28px;
    text-align: center;
    font-size: 18px;
    font-weight: 800;
    font-style: italic;
    color: #5b6379;
    flex-shrink: 0;
  }
  .creator-rank.top1{ color: #ffcf4d; }
  .creator-rank.top2{ color: #cfd6e6; }
  .creator-rank.top3{ color: #e08b52; }

  .creator-avatar{
    width: 48px; height: 48px;
    border-radius: 50%;
    object-fit: cover;
    background: linear-gradient(135deg,#3a4257,#242a3a);
    border: 2px solid rgba(255,255,255,.08);
    flex-shrink: 0;
  }

  .creator-info{ display: flex; flex-direction: column; min-width: 0; }
  .creator-info strong{ font-size: 15px; font-weight: 600; }
  .creator-info span{
    font-size: 12.5px;
    color: var(--text-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .creator-follow{
    margin-left: auto;
    padding: 5px 16px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--primary);
    border: 1px solid rgba(255,46,99,.35);
    background: rgba(255,46,99,.06);
    transition: all .22s;
    white-space: nowrap;
  }
  .creator-follow:hover{
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    border-color: transparent;
  }

  /* ============ 社区互动 ============ */
  .community-section{
    background: var(--bg-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .community-grid{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .community-card{
    display: flex;
    gap: 16px;
    padding: 24px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--line);
    transition: border-color .25s, transform .25s;
  }
  .community-card:hover{
    border-color: rgba(34,211,238,.3);
    transform: translateY(-3px);
  }

  .comm-avatar{
    width: 44px; height: 44px;
    border-radius: 50%;
    object-fit: cover;
    background: linear-gradient(135deg,#3a4257,#242a3a);
    flex-shrink: 0;
  }

  .comm-content{ min-width: 0; }
  .comm-header{
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
  }
  .comm-header strong{ font-size: 14px; font-weight: 600; }
  .comm-header span{ font-size: 12px; color: var(--text-2); }
  .comm-text{
    font-size: 13.5px;
    color: var(--text-2);
    line-height: 1.6;
  }
  .comm-text em{
    color: var(--accent);
    font-style: normal;
  }

  /* ============ 下载 CTA ============ */
  .download-section{
    padding: 100px 0;
    position: relative;
    overflow: hidden;
  }
  .download-section::before{
    content:"";
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 800px; height: 500px;
    background: radial-gradient(ellipse, rgba(255,46,99,.12), transparent 70%);
    pointer-events: none;
  }

  .download-inner{
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
  }

  .download-content h2{
    font-size: 36px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 16px;
  }
  .download-content h2 span{
    background: linear-gradient(100deg, var(--primary), var(--primary-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .download-content p{
    font-size: 15px;
    color: var(--text-2);
    margin-bottom: 32px;
    max-width: 460px;
  }

  .download-btns{
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }
  .download-btns .btn{
    height: 54px;
    padding: 0 32px;
    font-size: 15px;
    border-radius: 14px;
  }
  .download-btns .btn svg{
    width: 20px; height: 20px;
    fill: currentColor;
  }

  /* ============ 页脚 ============ */
  .footer{
    padding: 48px 0 32px;
    border-top: 1px solid var(--line);
    background: var(--bg-2);
  }
  .footer-inner{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 32px;
  }
  .footer-brand p{
    margin-top: 12px;
    font-size: 13px;
    color: var(--text-2);
    max-width: 280px;
    line-height: 1.7;
  }
  .footer-links{
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
  }
  .footer-links a{
    font-size: 13.5px;
    color: var(--text-2);
    transition: color .2s;
  }
  .footer-links a:hover{ color: var(--primary); }

  .footer-bottom{
    margin-top: 36px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    font-size: 12.5px;
    color: #5a6178;
  }

  /* ============ 返回顶部 ============ */
  .to-top{
    position: fixed;
    right: 26px;
    bottom: 26px;
    z-index: 90;
    width: 46px; height: 46px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    box-shadow: 0 8px 24px rgba(255,46,99,.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all .3s;
  }
  .to-top.show{ opacity: 1; visibility: visible; transform: translateY(0); }

  /* ============ 响应式 ============ */
  @media (max-width: 1024px){
    .hero-inner{ grid-template-columns: 1fr; gap: 50px; text-align: center; }
    .hero-desc{ margin-left: auto; margin-right: auto; }
    .hero-actions{ justify-content: center; }
    .hero-stats{ justify-content: center; }
    .hero h1{ font-size: 38px; }
    .hero-visual{ order: -1; min-height: 380px; }
    .phone{ width: 190px; }
    .phone-back{ transform: translate(40px, 24px) rotate(6deg) scale(.88); }
    .features-grid{ grid-template-columns: 1fr 1fr; }
    .nav{ display: none; }
    .download-inner{ grid-template-columns: 1fr; text-align: center; }
    .download-content p{ margin-left: auto; margin-right: auto; }
    .download-btns{ justify-content: center; }
    .community-grid{ grid-template-columns: 1fr 1fr; }
  }

  @media (max-width: 640px){
    .header-inner{ height: 60px; gap: 12px; }
    .hero{ padding: 120px 0 64px; }
    .hero h1{ font-size: 30px; }
    .hero-desc{ font-size: 14.5px; }
    .hero-actions{ flex-direction: column; align-items: stretch; }
    .hero-actions .btn{ width: 100%; }
    .hero-stats{ gap: 24px; }
    .stat-num{ font-size: 20px; }
    .section{ padding: 64px 0; }
    .section-head h2{ font-size: 26px; }
    .features-grid{ grid-template-columns: 1fr; }
    .live-grid{ grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
    .live-body{ padding: 10px 12px 14px; }
    .live-title{ font-size: 13.5px; height: 40px; }
    .community-grid{ grid-template-columns: 1fr; }
    .download-content h2{ font-size: 26px; }
    .footer-inner{ flex-direction: column; }
    .download-btns{ flex-direction: column; }
    .download-btns .btn{ width: 100%; }
    .qr-popover{ width: 110px; }
  }