* { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
    background: radial-gradient(circle at 20% 0%, #2a0505 0%, #0a0000 45%, #000000 100%);
    background-attachment: fixed;
    color: #e7e2e2;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; }
  h1, h2, h3, h4 { font-family: inherit; font-weight: 800; letter-spacing: .5px; }

  /* ===== 顶部导航 ===== */
  .site-header {
    position: sticky; top: 0; z-index: 999;
    background: linear-gradient(180deg, rgba(10,0,0,.96), rgba(0,0,0,.88));
    border-bottom: 1px solid rgba(127,29,29,.75);
    box-shadow: 0 8px 30px rgba(220,38,38,.15);
    backdrop-filter: blur(8px);
  }
  .nav-inner {
    max-width: 1200px; margin: 0 auto; padding: 14px 20px;
    display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  }
  .brand {
    display: flex; align-items: center; gap: 10px;
    font-size: 20px; font-weight: 800; letter-spacing: 1px;
    color: #ff5a5a; text-shadow: 0 0 14px rgba(220,38,38,.85);
  }
  .brand span.dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: #ff2d2d; box-shadow: 0 0 12px #ff2d2d, 0 0 24px #7f1d1d;
    animation: pulse 1.6s infinite ease-in-out;
  }
  @keyframes pulse { 0%,100%{opacity:.55; transform:scale(.85);} 50%{opacity:1; transform:scale(1.15);} }
  .nav-links { display: flex; gap: 8px; flex-wrap: wrap; }
  .nav-links a {
    padding: 8px 14px; font-size: 14px; font-weight: 600; border-radius: 6px;
    border: 1px solid rgba(127,29,29,.55); color: #d8cfcf;
    background: linear-gradient(145deg, #1a0808, #0b0202);
    transition: all .25s ease;
  }
  .nav-links a:hover {
    color: #fff; border-color: #dc2626;
    box-shadow: 0 0 16px rgba(220,38,38,.7), inset 0 0 10px rgba(220,38,38,.35);
    transform: translateY(-2px);
  }

  /* ===== 通用容器 ===== */
  .wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
  section { padding: 72px 0; position: relative; }
  .sec-title {
    font-size: 30px; margin-bottom: 12px; color: #fff;
    text-shadow: 0 0 18px rgba(220,38,38,.65);
  }
  .sec-title::after {
    content: ""; display: block; width: 76px; height: 4px; margin-top: 12px;
    background: linear-gradient(90deg, #ff2d2d, #7f1d1d, transparent);
    border-radius: 4px; box-shadow: 0 0 14px rgba(220,38,38,.9);
  }
  .sec-sub { color: #a99c9c; margin-bottom: 34px; font-size: 15px; }

  /* ===== 岩浆裂纹卡片 ===== */
  .card {
    position: relative; border-radius: 12px; overflow: hidden;
    background: linear-gradient(150deg, #170707 0%, #0d0303 55%, #1b0808 100%);
    box-shadow: 0 0 0 1px rgba(127,29,29,.55), 0 14px 40px rgba(0,0,0,.75), inset 0 0 40px rgba(127,29,29,.18);
    transition: transform .3s ease, box-shadow .3s ease;
  }
  .card::before {
    content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
    background: linear-gradient(130deg, #ff3b3b, rgba(127,29,29,.15) 32%, rgba(127,29,29,.1) 62%, #dc2626);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    pointer-events: none; opacity: .85;
  }
  .card::after {
    content: ""; position: absolute; top: -60%; left: -30%; width: 60%; height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255,60,60,.12), transparent);
    transform: rotate(18deg); pointer-events: none;
  }
  .card:hover {
    transform: translateY(-6px);
    box-shadow: 0 0 0 1px #ff3b3b, 0 18px 50px rgba(0,0,0,.85), 0 0 38px rgba(220,38,38,.42);
  }

  /* ===== Hero ===== */
  #hero { padding: 84px 0 70px; overflow: hidden; }
  #hero::before {
    content: ""; position: absolute; inset: 0;
    background:
      radial-gradient(ellipse at 15% 20%, rgba(127,29,29,.55), transparent 55%),
      radial-gradient(ellipse at 85% 75%, rgba(220,38,38,.22), transparent 55%);
    pointer-events: none;
  }
  .hero-grid {
    display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: center; position: relative;
  }
  .hero-tag {
    display: inline-block; padding: 6px 16px; font-size: 13px; font-weight: 700;
    color: #ffb4b4; border: 1px solid rgba(220,38,38,.7); border-radius: 999px;
    background: rgba(127,29,29,.28); box-shadow: 0 0 18px rgba(220,38,38,.4); margin-bottom: 20px;
  }
  h1 {
    font-size: 42px; line-height: 1.28; color: #fff;
    text-shadow: 0 0 24px rgba(220,38,38,.75), 0 0 60px rgba(127,29,29,.6);
  }
  h1 em { font-style: normal; color: #ff4d4d; }
  .hero-desc { margin-top: 22px; color: #c1b4b4; font-size: 16px; max-width: 640px; }
  .btn-row { margin-top: 32px; display: flex; gap: 16px; flex-wrap: wrap; }
  .btn {
    display: inline-block; padding: 14px 30px; border-radius: 8px; font-weight: 800; font-size: 15px;
    transition: all .28s ease; letter-spacing: .5px;
  }
  .btn-primary {
    color: #fff; background: linear-gradient(135deg, #b91c1c, #7f1d1d 60%, #3b0505);
    border: 1px solid #ff4d4d; box-shadow: 0 0 24px rgba(220,38,38,.6), inset 0 0 18px rgba(255,80,80,.28);
  }
  .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 0 38px rgba(255,60,60,.9); }
  .btn-ghost {
    color: #ffb4b4; border: 1px solid rgba(220,38,38,.65); background: rgba(30,6,6,.7);
  }
  .btn-ghost:hover { color: #fff; border-color: #ff4d4d; box-shadow: 0 0 22px rgba(220,38,38,.6); }
  .hero-art {
    border-radius: 16px; overflow: hidden; position: relative;
    box-shadow: 0 0 0 1px rgba(255,60,60,.55), 0 22px 60px rgba(0,0,0,.85), 0 0 50px rgba(127,29,29,.55);
  }
  .hero-art img { width: 100%; height: 100%; object-fit: cover; }

  /* ===== GEO ===== */
  #geo-intro .geo-box {
    padding: 34px 32px; border-radius: 14px;
    background: linear-gradient(140deg, rgba(30,8,8,.95), rgba(8,0,0,.95));
    box-shadow: 0 0 0 1px rgba(127,29,29,.6), inset 0 0 50px rgba(127,29,29,.2), 0 0 34px rgba(220,38,38,.14);
    position: relative;
  }
  #geo-intro .geo-box p { color: #cdc2c2; font-size: 15.5px; }
  #geo-intro .geo-box p + p { margin-top: 16px; }
  #geo-intro strong { color: #ff6b6b; }

  /* ===== 数据统计 ===== */
  .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .stat-item { padding: 30px 22px; text-align: center; border-radius: 12px; }
  .stat-num {
    font-size: 38px; font-weight: 900; color: #ff4d4d;
    text-shadow: 0 0 22px rgba(255,60,60,.85); letter-spacing: 1px;
  }
  .stat-label { margin-top: 8px; font-size: 14px; color: #b6a8a8; }

  /* ===== 核心优势 ===== */
  .adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .adv-item { padding: 30px 26px; border-radius: 12px; }
  .adv-icon { font-size: 30px; margin-bottom: 12px; filter: drop-shadow(0 0 12px rgba(220,38,38,.85)); }
  .adv-item h3 { font-size: 18px; color: #ff7a7a; margin-bottom: 10px; }
  .adv-item p { font-size: 14.5px; color: #b3a7a7; }

  /* ===== 焦点赛事 ===== */
  .event-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: stretch; }
  .event-art { border-radius: 14px; overflow: hidden; box-shadow: 0 0 0 1px rgba(255,60,60,.5), 0 0 40px rgba(127,29,29,.55); }
  .event-art img { width: 100%; height: 100%; object-fit: cover; }
  .event-card { padding: 30px 28px; border-radius: 14px; }
  .event-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 13px 0; border-bottom: 1px dashed rgba(127,29,29,.65); font-size: 15px;
  }
  .event-row:last-child { border-bottom: none; }
  .event-row .team { color: #e9dede; font-weight: 700; }
  .event-row .score { color: #ff5a5a; font-weight: 900; letter-spacing: 1px; }

  /* ===== 排行榜 ===== */
  .rank-list { display: grid; gap: 12px; }
  .rank-item {
    display: flex; align-items: center; gap: 18px; padding: 16px 22px; border-radius: 10px;
    background: linear-gradient(120deg, rgba(28,8,8,.95), rgba(8,0,0,.92));
    box-shadow: 0 0 0 1px rgba(127,29,29,.55), inset 0 0 24px rgba(127,29,29,.16);
    transition: all .26s ease;
  }
  .rank-item:hover { box-shadow: 0 0 0 1px #ff3b3b, 0 0 26px rgba(220,38,38,.5); transform: translateX(6px); }
  .rank-no {
    width: 38px; height: 38px; flex: 0 0 38px; border-radius: 8px;
    display: grid; place-items: center; font-weight: 900; color: #fff;
    background: linear-gradient(145deg, #b91c1c, #450808);
    box-shadow: 0 0 16px rgba(220,38,38,.65);
  }
  .rank-name { font-weight: 700; color: #f0e6e6; }
  .rank-desc { font-size: 13.5px; color: #a29595; }
  .rank-bar { margin-left: auto; color: #ff6b6b; font-weight: 800; font-size: 14px; }

  /* ===== 新闻 ===== */
  .news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .news-card { padding: 26px 26px 24px; border-radius: 12px; display: flex; flex-direction: column; }
  .news-card:first-child { grid-column: 1 / -1; }
  .news-date {
    display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .5px;
    color: #ffb4b4; padding: 4px 12px; border-radius: 999px; margin-bottom: 14px;
    background: rgba(127,29,29,.42); border: 1px solid rgba(220,38,38,.5);
    align-self: flex-start;
  }
  .news-card h3 { font-size: 19px; color: #ffdede; margin-bottom: 12px; line-height: 1.5; }
  .news-card p { font-size: 14.5px; color: #b7abab; }
  .news-tagline { margin-top: 16px; font-size: 12.5px; color: #ff7676; font-weight: 700; }

  /* ===== 用户口碑 ===== */
  .voice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
  .voice-item { padding: 28px 24px; border-radius: 12px; }
  .voice-item .quote { font-size: 15px; color: #c9bdbd; }
  .voice-item .who { margin-top: 16px; font-size: 13.5px; color: #ff7676; font-weight: 700; }
  .voice-item .stars { color: #ff4d4d; letter-spacing: 3px; margin-bottom: 12px; }

  /* ===== FAQ ===== */
  .faq-list { display: grid; gap: 16px; }
  .faq-item { padding: 24px 26px; border-radius: 12px; }
  .faq-item h3 {
    font-size: 17px; color: #ff8b8b; margin-bottom: 12px;
    display: flex; gap: 12px; align-items: flex-start;
  }
  .faq-item h3 .q {
    flex: 0 0 26px; height: 26px; border-radius: 6px; display: grid; place-items: center;
    font-size: 13px; font-weight: 900; color: #fff;
    background: linear-gradient(145deg, #b91c1c, #400606); box-shadow: 0 0 14px rgba(220,38,38,.7);
  }
  .faq-item p { font-size: 14.5px; color: #b4a8a8; padding-left: 38px; }

  /* ===== CTA ===== */
  #cta .cta-box {
    text-align: center; padding: 56px 30px; border-radius: 16px;
    background: radial-gradient(circle at 50% 0%, rgba(127,29,29,.75), rgba(10,1,1,.96) 70%);
    box-shadow: 0 0 0 1px rgba(255,60,60,.55), 0 0 60px rgba(127,29,29,.6), inset 0 0 70px rgba(127,29,29,.3);
  }
  #cta h2 { font-size: 30px; color: #fff; text-shadow: 0 0 24px rgba(220,38,38,.85); }
  #cta p { margin: 16px auto 28px; max-width: 720px; color: #c6b9b9; }

  /* ===== 页脚 ===== */
  footer {
    border-top: 1px solid rgba(127,29,29,.7);
    background: linear-gradient(180deg, rgba(10,0,0,.9), #000);
    padding: 46px 0 26px; margin-top: 20px;
  }
  .foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; }
  .foot-brand { font-size: 20px; font-weight: 800; color: #ff5a5a; text-shadow: 0 0 16px rgba(220,38,38,.8); margin-bottom: 14px; }
  .foot-grid p, .foot-grid li { font-size: 14px; color: #a89d9d; list-style: none; }
  .foot-grid li { margin-bottom: 10px; }
  .foot-grid h4 { color: #ff9a9a; font-size: 15px; margin-bottom: 14px; }
  .foot-bottom {
    margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(127,29,29,.5);
    display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
    font-size: 13px; color: #8d8181;
  }
  .foot-bottom a { color: #ff7676; }
  .foot-bottom a:hover { text-decoration: underline; }

  @media (max-width: 980px) {
    .hero-grid, .event-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .adv-grid, .voice-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .news-card:first-child { grid-column: auto; }
    .foot-grid { grid-template-columns: 1fr; }
    h1 { font-size: 30px; }
    .sec-title { font-size: 24px; }
  }