* { margin: 0; padding: 0; box-sizing: border-box; }

    :root {
      --pink: #E3EDF8;
      --pink-light: #F5F8FE;
      --pink-deep: #C2D7F0;
      --yellow: #FFCC00;
      --yellow-dark: #E6B800;
      --text-dark: #16243D;
      --text-medium: #4A5B73;
      --text-light: #7A8BA1;
      --bg-white: #FFFFFF;
      --border: #D6E4F5;
      --shadow-sm: 0 2px 8px rgba(120, 160, 210, 0.18);
      --shadow-md: 0 6px 20px rgba(120, 160, 210, 0.25);
      --shadow-lg: 0 12px 40px rgba(120, 160, 210, 0.3);
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
      background: var(--pink-light);
      color: var(--text-dark);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* ========== 导航 ========== */
    .navbar {
      position: sticky;
      top: 0;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: var(--shadow-sm);
      z-index: 1000;
      padding: 14px 0;
    }
    .nav-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .logo { display: flex; align-items: center; gap: 12px; }
    .logo-icon {
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }
    .logo-icon img { height: 48px; width: auto; display: block; }
    .nav-menu { display: flex; gap: 32px; list-style: none; }
    .nav-menu a {
      color: var(--text-medium);
      text-decoration: none;
      font-weight: 500;
      font-size: 15px;
      transition: color .2s;
      position: relative;
    }
    .nav-menu a:hover { color: var(--text-dark); }
    .nav-menu a::after {
      content: '';
      position: absolute;
      left: 0; bottom: -6px;
      width: 0; height: 2px;
      background: var(--yellow);
      transition: width .25s;
    }
    .nav-menu a:hover::after { width: 100%; }
    .nav-cta {
      background: var(--yellow);
      color: var(--text-dark);
      padding: 10px 22px;
      border-radius: 24px;
      font-weight: 700;
      text-decoration: none;
      font-size: 14px;
      box-shadow: var(--shadow-sm);
      transition: all .25s;
    }
    .nav-cta:hover { background: var(--yellow-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }

    /* ========== 通用 ========== */
    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    section { padding: 80px 0; position: relative; }
    .section-header { text-align: center; margin-bottom: 56px; }
    .section-tag {
      display: inline-block;
      background: var(--pink);
      color: var(--text-dark);
      padding: 6px 18px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 38px;
      font-weight: 800;
      margin-bottom: 14px;
      line-height: 1.2;
    }
    .section-title .hl {
      background: linear-gradient(135deg, var(--yellow) 0%, var(--yellow-dark) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .section-subtitle { font-size: 16px; color: var(--text-light); max-width: 600px; margin: 0 auto; }

    /* ========== Hero ========== */
    .hero {
      padding: 80px 0 60px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: -120px; right: -120px;
      width: 420px; height: 420px;
      background: radial-gradient(circle, var(--yellow) 0%, transparent 65%);
      opacity: 0.35;
      border-radius: 50%;
    }
    .hero::after {
      content: '';
      position: absolute;
      bottom: -120px; left: -120px;
      width: 420px; height: 420px;
      background: radial-gradient(circle, var(--pink) 0%, transparent 65%);
      border-radius: 50%;
    }
    .hero-tag {
      display: inline-block;
      background: white;
      color: var(--text-dark);
      padding: 8px 20px;
      border-radius: 24px;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 28px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .hero h1 {
      font-size: 58px;
      font-weight: 800;
      line-height: 1.15;
      margin-bottom: 22px;
      position: relative;
      letter-spacing: -1px;
    }
    .hero h1 .hl {
      background: linear-gradient(135deg, var(--yellow) 0%, var(--yellow-dark) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-subtitle {
      font-size: 19px;
      color: var(--text-medium);
      margin-bottom: 44px;
      position: relative;
    }
    .hero-stats {
      display: flex;
      justify-content: center;
      gap: 64px;
      margin-bottom: 44px;
      position: relative;
    }
    .stat-item { text-align: center; }
    .stat-num { font-size: 40px; font-weight: 800; color: var(--text-dark); line-height: 1; }
    .stat-num .unit { font-size: 18px; color: var(--text-light); }
    .stat-label { font-size: 14px; color: var(--text-light); margin-top: 6px; }
    .hero-cta { display: inline-flex; gap: 16px; position: relative; }

    .btn-primary {
      background: #FFCC00;
      color: var(--text-dark);
      padding: 16px 40px;
      border-radius: 32px;
      font-size: 16px;
      font-weight: 700;
      text-decoration: none;
      box-shadow: var(--shadow-md);
      transition: all .25s;
      border: 0;
      cursor: pointer;
      display: inline-block;
      position: relative;
      z-index: 100;
    }
    .btn-primary:hover { background: var(--yellow-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
    .btn-secondary {
      background: white;
      color: var(--text-dark);
      padding: 16px 40px;
      border-radius: 32px;
      font-size: 16px;
      font-weight: 700;
      text-decoration: none;
      border: 2px solid var(--pink);
      transition: all .25s;
      display: inline-block;
    }
    .btn-secondary:hover { background: var(--pink-light); transform: translateY(-2px); }

    /* ========== 什么是切片 ========== */
    .what-section { background: white; }
    .what-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .what-content h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .what-content .icon {
      width: 52px; height: 52px;
      background: linear-gradient(135deg, var(--yellow) 0%, var(--pink) 100%);
      border-radius: 14px;
      display: flex; align-items: center; justify-content: center;
      font-size: 26px;
      box-shadow: var(--shadow-sm);
    }
    .what-content p {
      color: var(--text-medium);
      font-size: 16px;
      line-height: 1.85;
      margin-bottom: 18px;
    }
    .what-content p:last-child { margin-bottom: 0; }
    .what-visual {
      position: relative;
      height: 420px;
    }
    .visual-card-main {
      position: absolute;
      top: 0; left: 0;
      width: 70%; height: 70%;
      background: linear-gradient(135deg, var(--yellow) 0%, var(--pink) 100%);
      border-radius: 24px;
      padding: 32px;
      color: var(--text-dark);
      box-shadow: var(--shadow-md);
      display: flex; flex-direction: column; justify-content: space-between;
    }
    .visual-card-sub {
      position: absolute;
      bottom: 0; right: 0;
      width: 55%; height: 55%;
      background: white;
      border-radius: 20px;
      padding: 24px;
      box-shadow: var(--shadow-lg);
      border: 3px solid var(--yellow);
    }
    .visual-card-main .num {
      font-size: 64px;
      font-weight: 800;
      line-height: 1;
    }
    .visual-card-main .label {
      font-size: 18px;
      font-weight: 700;
      margin-top: 8px;
    }
    .visual-card-main .desc { font-size: 13px; opacity: 0.85; margin-top: 4px; }
    .visual-card-sub .icon-circle {
      width: 44px; height: 44px;
      background: var(--yellow);
      border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      font-size: 22px;
      margin-bottom: 12px;
    }
    .visual-card-sub h5 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
    .visual-card-sub p { font-size: 12px; color: var(--text-light); }

    /* ========== 平台提供 ========== */
    .provide-section { background: var(--pink-light); }
    .provide-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .provide-card {
      background: white;
      border-radius: 20px;
      padding: 36px 30px;
      box-shadow: var(--shadow-sm);
      transition: all .3s;
      border: 2px solid transparent;
      position: relative;
      overflow: hidden;
    }
    .provide-card::before {
      content: '';
      position: absolute;
      top: 0; right: 0;
      width: 80px; height: 80px;
      background: var(--yellow);
      opacity: 0.12;
      border-radius: 0 0 0 100%;
      transition: all .3s;
    }
    .provide-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: var(--yellow); }
    .provide-card:hover::before { width: 120px; height: 120px; opacity: 0.2; }
    .provide-icon {
      width: 68px; height: 68px;
      background: linear-gradient(135deg, var(--yellow) 0%, var(--pink) 100%);
      border-radius: 18px;
      display: flex; align-items: center; justify-content: center;
      font-size: 34px;
      margin-bottom: 22px;
      position: relative;
      z-index: 1;
    }
    .provide-tag {
      display: inline-block;
      background: var(--yellow);
      color: var(--text-dark);
      padding: 4px 12px;
      border-radius: 10px;
      font-size: 12px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .provide-card h4 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
    .provide-card p { color: var(--text-medium); font-size: 15px; line-height: 1.7; }

    /* ========== 适合人群 ========== */
    .crowd-section { background: white; }
    .crowd-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .crowd-card {
      background: linear-gradient(135deg, var(--pink-light) 0%, white 100%);
      border-radius: 20px;
      padding: 32px;
      border: 2px solid var(--border);
      display: flex;
      gap: 22px;
      align-items: flex-start;
      transition: all .3s;
    }
    .crowd-card:hover { border-color: var(--yellow); transform: translateX(4px); box-shadow: var(--shadow-md); }
    .crowd-avatar {
      width: 80px; height: 80px;
      background: var(--yellow);
      border-radius: 20px;
      display: flex; align-items: center; justify-content: center;
      font-size: 38px;
      flex-shrink: 0;
      box-shadow: var(--shadow-sm);
    }
    .crowd-content h4 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
    .crowd-content p { color: var(--text-medium); font-size: 15px; line-height: 1.7; }
    .crowd-content .meta {
      display: inline-block;
      background: white;
      color: var(--text-dark);
      padding: 4px 12px;
      border-radius: 8px;
      font-size: 12px;
      font-weight: 600;
      margin-top: 10px;
    }

    /* ========== 合作模式 ========== */
    .model-section { background: var(--pink-light); }
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
      margin-bottom: 48px;
    }
    .process-timeline::before {
      content: '';
      position: absolute;
      top: 44px;
      left: 12%;
      right: 12%;
      height: 3px;
      background: repeating-linear-gradient(90deg, var(--yellow) 0 8px, transparent 8px 16px);
      z-index: 0;
    }
    .process-step { text-align: center; position: relative; z-index: 1; }
    .step-circle {
      width: 88px; height: 88px;
      background: white;
      border: 4px solid var(--yellow);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 18px;
      font-size: 36px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .step-num {
      position: absolute;
      top: -4px; right: -4px;
      background: var(--pink);
      color: var(--text-dark);
      width: 30px; height: 30px;
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 14px;
      font-weight: 800;
      border: 2px solid white;
    }
    .process-step h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
    .process-step p { font-size: 13px; color: var(--text-light); line-height: 1.5; }

    .model-highlight {
      background: white;
      border-radius: 20px;
      padding: 40px;
      box-shadow: var(--shadow-sm);
      border-left: 6px solid var(--yellow);
      max-width: 900px;
      margin: 0 auto;
    }
    .model-highlight h4 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 14px;
      display: flex; align-items: center; gap: 10px;
    }
    .model-highlight p {
      color: var(--text-medium);
      font-size: 16px;
      line-height: 1.85;
    }
    .model-highlight .key {
      background: var(--yellow);
      padding: 2px 8px;
      border-radius: 6px;
      font-weight: 700;
    }

    /* ========== 注意事项 ========== */
    .notice-section { background: white; }
    .notice-list { max-width: 960px; margin: 0 auto; }
    .notice-item {
      display: flex;
      gap: 22px;
      padding: 24px 28px;
      background: var(--pink-light);
      border-radius: 16px;
      margin-bottom: 16px;
      border-left: 5px solid var(--yellow);
      transition: all .25s;
    }
    .notice-item:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); }
    .notice-num {
      width: 40px; height: 40px;
      background: var(--yellow);
      color: var(--text-dark);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
      font-size: 16px;
    }
    .notice-content { flex: 1; }
    .notice-content h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
    .notice-content p { color: var(--text-medium); font-size: 15px; line-height: 1.7; }

    /* ========== 玩法 ========== */
    .play-section { background: var(--pink-light); }
    .play-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .play-card {
      background: white;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all .3s;
    }
    .play-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
    .play-header {
      background: linear-gradient(135deg, var(--yellow) 0%, var(--pink) 100%);
      padding: 24px 28px;
      color: var(--text-dark);
      display: flex; align-items: center; gap: 14px;
    }
    .play-header .play-icon {
      width: 48px; height: 48px;
      background: white;
      border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      font-size: 24px;
    }
    .play-header h4 { font-size: 20px; font-weight: 800; }
    .play-body { padding: 24px 28px; }
    .play-body ul { list-style: none; }
    .play-body li {
      padding: 12px 0;
      border-bottom: 1px dashed var(--border);
      color: var(--text-medium);
      font-size: 15px;
      display: flex;
      align-items: flex-start;
      gap: 10px;
      line-height: 1.65;
    }
    .play-body li:last-child { border-bottom: none; }
    .play-body li::before {
      content: '●';
      color: var(--yellow);
      flex-shrink: 0;
      font-size: 12px;
      margin-top: 7px;
    }

    /* ========== 规则详情 ========== */
    .rules-section { background: white; }
    .rule-block {
      background: var(--pink-light);
      border-radius: 18px;
      padding: 32px 36px;
      margin-bottom: 24px;
    }
    .rule-block h4 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 18px;
      display: flex; align-items: center; gap: 12px;
    }
    .rule-block h4 .num-badge {
      background: var(--yellow);
      color: var(--text-dark);
      padding: 4px 14px;
      border-radius: 10px;
      font-size: 14px;
    }
    .rule-block p, .rule-block li {
      color: var(--text-medium);
      font-size: 15px;
      line-height: 1.85;
    }
    .rule-block ul { padding-left: 20px; margin: 12px 0; }
    .rule-block ul li { margin-bottom: 6px; }
    .hl-danger { color: #D32F2F; font-weight: 800; }
    .hl-ok { color: #2E7D32; font-weight: 700; }

    .quota-table {
      width: 100%;
      border-collapse: collapse;
      margin: 14px 0 8px;
      background: white;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .quota-table th, .quota-table td {
      padding: 14px 18px;
      text-align: left;
      border-bottom: 1px solid var(--border);
    }
    .quota-table th { background: var(--yellow); color: var(--text-dark); font-weight: 800; }
    .quota-table tr:last-child td { border-bottom: none; }
    .quota-table tr:hover td { background: var(--pink-light); }
    .quota-table .quota-num { font-size: 20px; font-weight: 800; color: var(--text-dark); }

    .danger-box {
      background: #FFEBEE;
      border-left: 4px solid #D32F2F;
      padding: 16px 20px;
      border-radius: 10px;
      margin: 14px 0;
    }
    .danger-box p { color: #B71C1C; font-weight: 600; }

    /* ========== CTA ========== */
    .cta-section {
      background: linear-gradient(135deg, var(--yellow) 0%, var(--pink) 100%);
      border-radius: 32px;
      padding: 72px 48px;
      text-align: center;
      color: var(--text-dark);
      position: relative;
      overflow: hidden;
      margin: 0 auto;
      max-width: 1200px;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      top: -80px; right: -80px;
      width: 240px; height: 240px;
      background: rgba(255,255,255,0.3);
      border-radius: 50%;
    }
    .cta-section::after {
      content: '';
      position: absolute;
      bottom: -100px; left: -100px;
      width: 280px; height: 280px;
      background: rgba(255,255,255,0.2);
      border-radius: 50%;
    }
    .cta-section h2 {
      font-size: 42px;
      font-weight: 800;
      margin-bottom: 16px;
      position: relative;
    }
    .cta-section p { font-size: 18px; margin-bottom: 36px; opacity: 0.9; position: relative; }
    .cta-buttons { display: flex; justify-content: center; gap: 16px; position: relative; }
    .btn-white {
      background: white;
      color: var(--text-dark);
      padding: 16px 40px;
      border-radius: 32px;
      font-size: 16px;
      font-weight: 700;
      text-decoration: none;
      box-shadow: var(--shadow-md);
      transition: all .25s;
      display: inline-block;
    }
    .btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
    .btn-outline-dark {
      background: transparent;
      color: var(--text-dark);
      padding: 16px 40px;
      border-radius: 32px;
      font-size: 16px;
      font-weight: 700;
      text-decoration: none;
      border: 2px solid var(--text-dark);
      transition: all .25s;
      display: inline-block;
    }
    .btn-outline-dark:hover { background: var(--text-dark); color: white; }

    /* ========== Footer ========== */
    footer {
      background: var(--text-dark);
      color: white;
      padding: 36px 0 28px;
      text-align: center;
      margin-top: 80px;
    }
    footer .foot-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 14px;
    }
    footer .foot-logo .name { font-size: 18px; font-weight: 800; letter-spacing: 1px; }
    footer p { opacity: 0.65; font-size: 13px; margin: 4px 0; }
    footer .copyright { margin-top: 14px; opacity: 0.5; }
    footer .copyright a {
      color: white;
      text-decoration: none;
      border-bottom: 1px solid rgba(255, 255, 255, 0.5);
      transition: color .2s, border-color .2s;
    }
    footer .copyright a:hover { color: #FFCC00; border-color: #FFCC00; }

    /* ========== 申请弹窗 ========== */
    .qr-modal-mask {
      position: fixed;
      inset: 0;
      background: rgba(22, 36, 61, 0.6);
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 9999;
      opacity: 0;
      visibility: hidden;
      transition: opacity .25s, visibility .25s;
    }
    .qr-modal-mask.show {
      opacity: 1;
      visibility: visible;
    }
    .qr-modal {
      background: white;
      border-radius: 24px;
      padding: 36px 36px 28px;
      max-width: 380px;
      width: calc(100% - 48px);
      text-align: center;
      position: relative;
      box-shadow: 0 24px 60px rgba(0,0,0,0.35);
      transform: scale(0.92);
      transition: transform .25s;
    }
    .qr-modal-mask.show .qr-modal { transform: scale(1); }
    .qr-modal-close {
      position: absolute;
      top: 14px; right: 14px;
      width: 32px; height: 32px;
      border: 0;
      background: var(--pink-light);
      color: var(--text-dark);
      border-radius: 50%;
      font-size: 18px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background .2s;
    }
    .qr-modal-close:hover { background: var(--pink); }
    .qr-modal h3 {
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .qr-modal .qr-sub {
      font-size: 14px;
      color: var(--text-light);
      margin-bottom: 22px;
    }
    .qr-modal .qr-img-wrap {
      width: 240px; height: 240px;
      margin: 0 auto 18px;
      border-radius: 16px;
      background: white;
      padding: 8px;
      border: 2px solid var(--yellow);
      box-shadow: var(--shadow-md);
    }
    .qr-modal .qr-img-wrap img {
      width: 100%;
      height: 100%;
      display: block;
      border-radius: 10px;
      object-fit: contain;
    }
    .qr-modal .qr-tip {
      font-size: 13px;
      color: var(--text-medium);
    }
    .qr-modal .qr-tip strong {
      color: var(--text-dark);
    }
    @media (max-width: 540px) {
      .qr-modal { padding: 28px 22px 22px; }
      .qr-modal .qr-img-wrap { width: 200px; height: 200px; }
    }

    /* ========== 响应式 ========== */
    @media (max-width: 960px) {
      .nav-menu { display: none; }
      .hero h1 { font-size: 40px; }
      .section-title { font-size: 28px; }
      .what-grid, .crowd-grid, .play-grid { grid-template-columns: 1fr; gap: 32px; }
      .provide-grid { grid-template-columns: 1fr; }
      .process-timeline { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
      .process-timeline::before { display: none; }
      .hero-stats { gap: 28px; flex-wrap: wrap; }
      .what-visual { height: 360px; }
      .cta-section { padding: 48px 24px; }
      .cta-section h2 { font-size: 30px; }
    }
    @media (max-width: 540px) {
      .hero h1 { font-size: 32px; }
      .section-title { font-size: 24px; }
      .process-timeline { grid-template-columns: 1fr; }
      .cta-buttons { flex-direction: column; align-items: center; }
    }