:root {
    --orange: #ff7a00;
    --yellow: #ffd600;
    --deep-orange: #e65c00;
    --light-bg: #fff8eb;
    --card-bg: #ffffff;
    --text-dark: #2b1a0e;
    --text-muted: #6b5545;
    --glass-bg: rgba(255,255,255,0.7);
    --glass-border: rgba(255,122,0,0.25);
    --shadow: 0 8px 30px rgba(255,122,0,0.12);
    --radius: 16px;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
  }
  a { text-decoration: none; color: inherit; }
  img { max-width: 100%; display: block; }
  
  /* Header */
  .site-header {
    position: sticky; top: 0; z-index: 100;
    background: linear-gradient(135deg, #ff7a00 0%, #ffd600 100%);
    box-shadow: 0 2px 20px rgba(255,122,0,0.3);
    padding: 0 20px;
  }
  .header-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
  }
  .brand {
    display: flex; align-items: center; gap: 10px;
    font-size: 20px; font-weight: 800; color: #fff;
    text-shadow: 0 2px 8px rgba(0,0,0,0.15);
    white-space: nowrap;
  }
  .brand img { height: 34px; width: auto; border-radius: 8px; }
  .nav-links {
    display: flex; gap: 4px; list-style: none;
    overflow-x: auto; flex-wrap: nowrap;
    scrollbar-width: none;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a {
    color: #fff; font-size: 14px; padding: 6px 12px; border-radius: 20px;
    white-space: nowrap; font-weight: 500; transition: background 0.2s;
  }
  .nav-links a:hover { background: rgba(255,255,255,0.25); }
  .menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 26px; cursor: pointer; }

  /* Hero */
  .hero {
    position: relative;
    background: linear-gradient(160deg, #fff3d6 0%, #ffe0b2 40%, #ffcc80 100%);
    padding: 60px 20px 80px;
    overflow: hidden;
  }
  .hero::before {
    content: ''; position: absolute; top: -120px; right: -120px;
    width: 400px; height: 400px; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,214,0,0.4), transparent 70%);
    animation: floatOrb 6s ease-in-out infinite;
  }
  .hero::after {
    content: ''; position: absolute; bottom: -100px; left: -80px;
    width: 300px; height: 300px; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,122,0,0.3), transparent 70%);
    animation: floatOrb 8s ease-in-out infinite reverse;
  }
  @keyframes floatOrb {
    0%, 100% { transform: translate(0,0) scale(1); }
    50% { transform: translate(30px,-20px) scale(1.1); }
  }
  .hero-inner {
    max-width: 1100px; margin: 0 auto; position: relative; z-index: 2;
    display: flex; flex-direction: column; align-items: center; text-align: center;
  }
  .hero-badge {
    display: inline-block; background: #fff; color: var(--deep-orange);
    padding: 6px 18px; border-radius: 30px; font-size: 13px; font-weight: 700;
    box-shadow: 0 4px 15px rgba(255,122,0,0.2); margin-bottom: 20px;
    border: 1px solid rgba(255,122,0,0.15);
  }
  .hero h1 {
    font-size: 42px; font-weight: 900; line-height: 1.2; margin-bottom: 16px;
    background: linear-gradient(135deg, #e65c00 0%, #ff7a00 50%, #c94b00 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
  }
  .hero-sub {
    font-size: 17px; color: var(--text-muted); max-width: 700px; margin-bottom: 30px;
  }
  .hero-sub strong { color: var(--deep-orange); }

  /* Download buttons */
  .dl-group {
    display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-bottom: 20px;
  }
  .dl-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 26px; border-radius: 50px; font-size: 15px; font-weight: 700;
    color: #fff; border: none; cursor: pointer;
    box-shadow: 0 6px 20px rgba(255,122,0,0.3);
    transition: transform 0.2s, box-shadow 0.2s;
    text-align: center;
  }
  .dl-btn:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(255,122,0,0.4); }
  .dl-btn.android { background: linear-gradient(135deg, #ff7a00, #ff9a3c); }
  .dl-btn.ios { background: linear-gradient(135deg, #333, #555); }
  .dl-btn.other { background: linear-gradient(135deg, #e65c00, #ff8800); }
  .dl-btn .icon { font-size: 18px; }
  .dl-note { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

  /* Parallax wall */
  .section-title-wrap { text-align: center; margin-bottom: 36px; }
  .section-tag {
    display: inline-block; background: rgba(255,122,0,0.1); color: var(--deep-orange);
    padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 700;
    margin-bottom: 10px;
  }
  .section-title { font-size: 28px; font-weight: 900; color: var(--text-dark); line-height: 1.3; }
  .section-title em { font-style: normal; color: var(--orange); }
  .section-desc { font-size: 15px; color: var(--text-muted); max-width: 640px; margin: 8px auto 0; }

  .hot-section {
    padding: 80px 20px; background: #fff; overflow: hidden;
  }
  .parallax-wall {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1200px; margin: 0 auto;
    perspective: 1000px;
  }
  .wall-card {
    background: #fff; border-radius: 14px; overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    border: 1px solid rgba(255,122,0,0.1);
    cursor: pointer;
    position: relative;
  }
  .wall-card:nth-child(odd) { transform: translateY(20px) rotateX(4deg); }
  .wall-card:nth-child(even) { transform: translateY(-10px) rotateX(-4deg); }
  .wall-card:hover { transform: translateY(-8px) rotateX(0) scale(1.03); box-shadow: 0 18px 40px rgba(255,122,0,0.18); z-index: 2; }
  .wall-card img { width: 100%; height: 220px; object-fit: cover; }
  .wall-card-info { padding: 12px 14px; }
  .wall-card-info h3 { font-size: 16px; font-weight: 800; margin-bottom: 4px; }
  .wall-card-info p { font-size: 12px; color: var(--text-muted); }
  .wall-card-rank {
    position: absolute; top: 10px; left: 10px;
    background: linear-gradient(135deg, #ff7a00, #ffd600);
    color: #fff; font-size: 12px; font-weight: 800; padding: 3px 10px; border-radius: 12px;
  }

  /* Exclusive film strip */
  .exclusive-section {
    padding: 80px 20px;
    background: linear-gradient(180deg, #fff5e6 0%, #ffe8cc 100%);
  }
  .film-strip {
    max-width: 1100px; margin: 0 auto;
    display: flex; flex-direction: column; gap: 24px;
  }
  .film-row {
    display: flex; align-items: center; gap: 28px;
    background: var(--card-bg); border-radius: var(--radius);
    box-shadow: var(--shadow); overflow: hidden;
    border: 1px solid rgba(255,122,0,0.1);
  }
  .film-row:nth-child(even) { flex-direction: row-reverse; }
  .film-poster { flex-shrink: 0; width: 220px; height: 300px; overflow: hidden; }
  .film-poster img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
  .film-row:hover .film-poster img { transform: scale(1.06); }
  .film-info { padding: 20px 24px; flex: 1; min-width: 0; }
  .film-info .film-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
  .film-tags span {
    background: rgba(255,122,0,0.1); color: var(--deep-orange);
    font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 12px;
  }
  .film-info h3 { font-size: 20px; font-weight: 800; margin-bottom: 8px; }
  .film-info p { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; }
  .film-date { font-size: 12px; color: #999; display: flex; align-items: center; gap: 6px; }
  .film-date::before { content: '📅'; }

  /* Timeline / New update */
  .new-section {
    padding: 80px 20px; background: #1a1206; color: #fff; position: relative; overflow: hidden;
  }
  .new-section .section-tag { background: rgba(255,122,0,0.2); color: var(--yellow); }
  .new-section .section-title { color: #fff; }
  .new-section .section-title em { color: var(--yellow); }
  .new-section .section-desc { color: #bba88f; }
  .energy-timeline {
    max-width: 800px; margin: 0 auto; position: relative;
    padding-left: 40px;
  }
  .energy-timeline::before {
    content: ''; position: absolute; left: 15px; top: 0; bottom: 0;
    width: 3px; background: linear-gradient(180deg, #ff7a00, #ffd600, #ff7a00);
    background-size: 100% 200%; animation: flowDown 3s linear infinite;
    border-radius: 3px;
  }
  @keyframes flowDown { 0% { background-position: 0 0; } 100% { background-position: 0 200px; } }
  .tl-item {
    position: relative; margin-bottom: 28px;
    background: rgba(255,255,255,0.05); border-radius: 12px;
    padding: 16px 20px; border: 1px solid rgba(255,214,0,0.15);
    display: flex; align-items: flex-start; gap: 16px;
    transition: background 0.3s;
  }
  .tl-item:hover { background: rgba(255,122,0,0.12); }
  .tl-dot {
    position: absolute; left: -32px; top: 22px;
    width: 14px; height: 14px; border-radius: 50%;
    background: var(--yellow);
    box-shadow: 0 0 0 0 rgba(255,214,0,0.6);
    animation: breathe 2s ease-in-out infinite;
  }
  @keyframes breathe {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255,214,0,0.5); }
    50% { box-shadow: 0 0 0 10px rgba(255,214,0,0); }
  }
  .tl-time {
    flex-shrink: 0; font-size: 18px; font-weight: 900; color: var(--yellow);
    min-width: 70px; font-variant-numeric: tabular-nums;
  }
  .tl-content h3 { font-size: 15px; font-weight: 700; margin-bottom: 2px; }
  .tl-content p { font-size: 13px; color: #bba88f; }

  /* Bubble / ranking */
  .rank-section {
    padding: 80px 20px; background: linear-gradient(180deg, #ffe8cc, #fff5e6);
  }
  .bubble-grid {
    max-width: 1100px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  }
  .bubble-card {
    background: var(--glass-bg); backdrop-filter: blur(12px);
    border-radius: 24px; padding: 20px; position: relative;
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 24px rgba(255,122,0,0.08);
    transition: transform 0.3s;
  }
  .bubble-card:hover { transform: translateY(-6px); }
  .bubble-card.top3 {
    border: 2px solid transparent;
    background-clip: padding-box;
    box-shadow: 0 0 20px rgba(255,122,0,0.35), 0 0 40px rgba(255,214,0,0.2);
    position: relative;
  }
  .bubble-card.top3::before {
    content: ''; position: absolute; inset: -2px; border-radius: 26px;
    background: linear-gradient(135deg, #ff7a00, #ffd600, #ff7a00);
    z-index: -1;
    background-size: 200% 200%;
    animation: borderFlow 3s linear infinite;
  }
  @keyframes borderFlow { 0% { background-position: 0 0; } 100% { background-position: 200% 0; } }
  .bubble-card img { width: 100%; height: 180px; object-fit: cover; border-radius: 16px; margin-bottom: 12px; }
  .bubble-card .bubble-badge {
    position: absolute; top: 12px; right: 12px;
    background: linear-gradient(135deg, #ff7a00, #ffd600);
    color: #fff; font-size: 12px; font-weight: 800;
    padding: 4px 12px; border-radius: 14px;
  }
  .bubble-card h3 { font-size: 16px; font-weight: 800; margin-bottom: 4px; }
  .bubble-card p { font-size: 13px; color: var(--text-muted); }

  /* Danmaku / comments */
  .danmaku-section {
    padding: 80px 20px; background: linear-gradient(180deg, #fff, #fff5e6);
    overflow: hidden;
  }
  .danmaku-flow {
    max-width: 1100px; margin: 0 auto;
    display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
  }
  .danmaku-item {
    display: flex; align-items: flex-start; gap: 10px;
    background: #fff; border-radius: 40px; padding: 10px 18px 10px 10px;
    box-shadow: 0 4px 15px rgba(255,122,0,0.1);
    border: 1px solid rgba(255,122,0,0.12);
    max-width: 500px;
    animation: danmakuIn 0.6s ease both;
  }
  .danmaku-item:nth-child(1) { animation-delay: 0.05s; }
  .danmaku-item:nth-child(2) { animation-delay: 0.1s; }
  .danmaku-item:nth-child(3) { animation-delay: 0.15s; }
  .danmaku-item:nth-child(4) { animation-delay: 0.2s; }
  .danmaku-item:nth-child(5) { animation-delay: 0.25s; }
  .danmaku-item:nth-child(6) { animation-delay: 0.3s; }
  .danmaku-item:nth-child(7) { animation-delay: 0.35s; }
  .danmaku-item:nth-child(8) { animation-delay: 0.4s; }
  .danmaku-item:nth-child(9) { animation-delay: 0.45s; }
  .danmaku-item:nth-child(10) { animation-delay: 0.5s; }
  @keyframes danmakuIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
  }
  .danmaku-avatar {
    width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
    object-fit: cover; background: #ffd600;
  }
  .danmaku-text { font-size: 13px; line-height: 1.5; color: var(--text-dark); }
  .danmaku-text strong { color: var(--deep-orange); font-weight: 700; }

  /* FAQ accordion */
  .faq-section {
    padding: 80px 20px; background: linear-gradient(180deg, #ffe8cc, #fff);
  }
  .faq-grid {
    max-width: 1000px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
  }
  .faq-item {
    background: #fff; border-radius: 12px; overflow: hidden;
    box-shadow: 0 4px 16px rgba(255,122,0,0.08);
    border: 1px solid rgba(255,122,0,0.1);
  }
  .faq-q {
    width: 100%; text-align: left; background: none; border: none;
    padding: 16px 20px; font-size: 15px; font-weight: 700; color: var(--text-dark);
    cursor: pointer; display: flex; justify-content: space-between; align-items: center;
    font-family: inherit;
  }
  .faq-q::after { content: '+'; font-size: 20px; color: var(--orange); transition: transform 0.3s; }
  .faq-item.open .faq-q::after { transform: rotate(45deg); }
  .faq-a {
    max-height: 0; overflow: hidden; transition: max-height 0.35s ease;
    padding: 0 20px; font-size: 14px; color: var(--text-muted);
  }
  .faq-item.open .faq-a { max-height: 200px; padding: 0 20px 16px; }

  /* Install steps */
  .install-section {
    padding: 80px 20px; background: #fff;
  }
  .install-steps {
    max-width: 900px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
    margin-bottom: 40px;
  }
  .step-card {
    background: linear-gradient(160deg, #fff8eb, #ffe8cc);
    border-radius: 16px; padding: 24px 20px; text-align: center;
    border: 1px solid rgba(255,122,0,0.15);
    position: relative;
  }
  .step-num {
    width: 44px; height: 44px; border-radius: 50%;
    background: linear-gradient(135deg, #ff7a00, #ffd600);
    color: #fff; font-size: 20px; font-weight: 900;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 14px;
    box-shadow: 0 4px 12px rgba(255,122,0,0.3);
  }
  .step-card h3 { font-size: 16px; font-weight: 800; margin-bottom: 6px; }
  .step-card p { font-size: 13px; color: var(--text-muted); }

  .final-dl {
    max-width: 800px; margin: 0 auto; text-align: center;
    background: linear-gradient(135deg, #fff5e6, #ffe8cc);
    border-radius: 24px; padding: 40px 24px;
    border: 1px solid rgba(255,122,0,0.15);
  }
  .final-dl h2 { font-size: 24px; font-weight: 900; margin-bottom: 8px; }
  .final-dl p { font-size: 14px; color: var(--text-muted); margin-bottom: 22px; }

  /* Footer */
  .site-footer {
    background: #2b1a0e; color: #c4b3a3; padding: 50px 20px 30px;
  }
  .footer-inner {
    max-width: 1100px; margin: 0 auto;
    display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px;
  }
  .footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
  .footer-brand img { height: 32px; border-radius: 8px; }
  .footer-brand span { font-size: 18px; font-weight: 800; color: #fff; }
  .footer-about p { font-size: 13px; line-height: 1.8; color: #a89482; }
  .footer-col h4 { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 12px; }
  .footer-col ul { list-style: none; }
  .footer-col li { margin-bottom: 8px; }
  .footer-col a { font-size: 13px; color: #a89482; transition: color 0.2s; }
  .footer-col a:hover { color: var(--yellow); }
  .footer-bottom {
    max-width: 1100px; margin: 30px auto 0; padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    text-align: center; font-size: 12px; color: #7a6859;
  }
  .footer-bottom .update-time { display: block; margin-top: 6px; font-size: 11px; color: #6b5a4c; }

  /* Baidu modal */
  .copy-modal {
    display: none; position: fixed; inset: 0; z-index: 999;
    background: rgba(0,0,0,0.5); align-items: center; justify-content: center;
    padding: 20px;
  }
  .copy-modal.active { display: flex; }
  .copy-modal-box {
    background: #fff; border-radius: 20px; padding: 28px 24px;
    max-width: 360px; width: 100%; text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  }
  .copy-modal-box h3 { font-size: 16px; font-weight: 800; margin-bottom: 14px; color: var(--text-dark); line-height: 1.5; }
  .copy-url {
    background: #fff8eb; border: 1px dashed var(--orange); border-radius: 10px;
    padding: 10px 12px; font-size: 12px; color: var(--deep-orange);
    word-break: break-all; margin-bottom: 16px; user-select: all;
  }
  .copy-btn {
    background: linear-gradient(135deg, #ff7a00, #ffd600);
    color: #fff; border: none; border-radius: 30px;
    padding: 12px 32px; font-size: 15px; font-weight: 700; cursor: pointer;
    width: 100%; font-family: inherit;
  }
  .copy-close {
    margin-top: 12px; background: none; border: none; color: #999;
    font-size: 13px; cursor: pointer; font-family: inherit;
  }

  /* Responsive */
  @media (max-width: 1024px) {
    .parallax-wall { grid-template-columns: repeat(3, 1fr); }
    .bubble-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 34px; }
  }
  @media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.open {
      display: flex; flex-direction: column; position: absolute;
      top: 64px; left: 0; right: 0; background: linear-gradient(135deg, #ff7a00, #ffd600);
      padding: 12px 20px; gap: 4px;
    }
    .menu-toggle { display: block; }
    .header-inner { position: relative; }
    .parallax-wall { grid-template-columns: repeat(2, 1fr); }
    .wall-card:nth-child(odd), .wall-card:nth-child(even) { transform: none; }
    .film-row, .film-row:nth-child(even) { flex-direction: column; }
    .film-poster { width: 100%; height: 240px; }
    .bubble-grid { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .install-steps { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 24px; }
    .hero h1 { font-size: 28px; }
    .section-title { font-size: 23px; }
    .energy-timeline { padding-left: 32px; }
    .tl-item { flex-direction: column; gap: 6px; }
    .tl-time { font-size: 16px; }
    .dl-group { gap: 10px; }
    .dl-btn { padding: 11px 20px; font-size: 14px; }
  }
  @media (max-width: 480px) {
    .parallax-wall { grid-template-columns: 1fr; }
    .hero h1 { font-size: 24px; }
    .danmaku-flow { flex-direction: column; align-items: stretch; }
    .danmaku-item { max-width: 100%; }
  }