/* roulang page: index */
:root {
      --deep-black: #0A0E17;
      --card-bg: #141B2D;
      --input-bg: #1C2438;
      --esports-red: #FF4655;
      --cyber-cyan: #00E5FF;
      --gold: #FFD700;
      --text-primary: #F3F4F6;
      --text-secondary: #9CA3AF;
      --border-cyan: rgba(0, 229, 255, 0.15);
      --border-cyan-strong: rgba(0, 229, 255, 0.4);
      --shadow-glow-red: 0 0 20px rgba(255, 70, 85, 0.6);
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-pill: 24px;
      --font-heading: 'Rajdhani', 'Noto Sans SC', sans-serif;
      --font-body: 'Inter', 'Noto Sans SC', sans-serif;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-body);
      background-color: var(--deep-black);
      color: var(--text-primary);
      line-height: 1.7;
      margin: 0;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    h1, h2, h3, h4 {
      font-family: var(--font-heading);
      font-weight: 700;
      letter-spacing: -0.5px;
    }
    h1 {
      font-size: 3.5rem;
      font-weight: 900;
      letter-spacing: -1px;
      line-height: 1.1;
    }
    h2 {
      font-size: 2.25rem;
      margin-bottom: 1rem;
    }
    h3 {
      font-size: 1.5rem;
      font-weight: 600;
    }
    a {
      text-decoration: none;
      color: var(--cyber-cyan);
      transition: color 0.2s;
    }
    a:hover {
      color: #fff;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      max-width: 1200px;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* 导航栏 - 搜索主导型 */
    .navbar-k1 {
      background: rgba(10, 14, 23, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 229, 255, 0.08);
      padding: 0.8rem 24px;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1050;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
    }
    .logo-brand {
      font-family: var(--font-heading);
      font-size: 1.8rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 6px;
      letter-spacing: -0.5px;
      text-decoration: none;
      position: relative;
    }
    .logo-brand span {
      color: var(--cyber-cyan);
      text-decoration: underline 2px solid var(--cyber-cyan);
      text-underline-offset: 6px;
    }
    .search-wrapper {
      flex: 1;
      max-width: 450px;
      margin: 0 2rem;
      position: relative;
    }
    .search-input {
      width: 100%;
      background: var(--input-bg);
      border: 1px solid var(--border-cyan-strong);
      border-radius: var(--radius-pill);
      padding: 0.7rem 1.2rem 0.7rem 3rem;
      font-size: 0.95rem;
      color: #fff;
      transition: all 0.25s ease;
      outline: none;
      font-family: var(--font-body);
    }
    .search-input::placeholder {
      color: #6B7280;
    }
    .search-input:focus {
      border-color: var(--esports-red);
      box-shadow: 0 0 12px rgba(255, 70, 85, 0.5);
    }
    .search-icon {
      position: absolute;
      left: 1.2rem;
      top: 50%;
      transform: translateY(-50%);
      color: var(--cyber-cyan);
      font-size: 1rem;
    }
    .nav-links {
      display: flex;
      gap: 2rem;
      align-items: center;
    }
    .nav-links a {
      color: #D1D5DB;
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      padding-bottom: 4px;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--cyber-cyan);
      transition: width 0.3s;
    }
    .nav-links a:hover {
      color: #fff;
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .hamburger {
      display: none;
      background: none;
      border: none;
      color: var(--cyber-cyan);
      font-size: 1.8rem;
      cursor: pointer;
    }
    /* Hero */
    .hero-k1 {
      height: 100vh;
      min-height: 700px;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      margin-top: 0;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at center, transparent 20%, #0A0E17 95%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      padding: 0 24px;
    }
    .hero-content h1 {
      color: #fff;
      text-shadow: 0 0 30px rgba(0,0,0,0.7);
      margin-bottom: 1.5rem;
    }
    .hero-sub {
      font-size: 1.25rem;
      color: var(--cyber-cyan);
      margin-bottom: 2.5rem;
      font-weight: 500;
    }
    .btn-group-hero {
      display: flex;
      gap: 1.5rem;
      justify-content: center;
      flex-wrap: wrap;
    }
    .btn-primary-k1 {
      background: var(--esports-red);
      border: none;
      color: #fff;
      padding: 14px 36px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 1rem;
      transition: all 0.25s;
      box-shadow: 0 4px 15px rgba(255,70,85,0.3);
      display: inline-block;
    }
    .btn-primary-k1:hover {
      transform: scale(1.05);
      box-shadow: var(--shadow-glow-red);
      color: #fff;
    }
    .btn-outline-cyan {
      background: transparent;
      border: 2px solid var(--cyber-cyan);
      color: var(--cyber-cyan);
      padding: 12px 34px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: 0.25s;
    }
    .btn-outline-cyan:hover {
      background: var(--cyber-cyan);
      color: #0A0E17;
    }
    .scroll-indicator {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      color: var(--cyber-cyan);
      font-size: 1.8rem;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { opacity: 0.6; transform: translateX(-50%) translateY(0); }
      50% { opacity: 1; transform: translateX(-50%) translateY(8px); }
      100% { opacity: 0.6; transform: translateX(-50%) translateY(0); }
    }
    /* 通用板块 */
    section {
      padding: 100px 0;
    }
    .section-title {
      text-align: center;
      margin-bottom: 3.5rem;
    }
    .section-title h2 {
      color: #fff;
    }
    .card-k1 {
      background: var(--card-bg);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-card);
      padding: 2rem;
      transition: all 0.3s ease;
      height: 100%;
      box-shadow: var(--shadow-card);
    }
    .card-k1:hover {
      border-color: var(--cyber-cyan);
      transform: translateY(-6px);
      box-shadow: 0 16px 40px rgba(0,0,0,0.6);
    }
    /* 痛点卡片 */
    .pain-point .card-k1 {
      border-left: 4px solid var(--esports-red);
      background: #0F1525;
    }
    /* 解决方案卡片图片 */
    .solution-img {
      height: 200px;
      background-size: cover;
      background-position: center;
      border-radius: 8px 8px 0 0;
      margin: -2rem -2rem 1.5rem -2rem;
      width: calc(100% + 4rem);
      transition: transform 0.4s;
    }
    .card-k1:hover .solution-img {
      transform: scale(1.03);
    }
    /* 数据计数器 */
    .stats-section {
      background: #0A0E17;
    }
    .stat-number {
      font-family: var(--font-heading);
      font-size: 3.8rem;
      font-weight: 700;
      color: var(--gold);
    }
    /* 证言卡片 */
    .testimonial-scroll {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      padding-bottom: 20px;
      scroll-snap-type: x mandatory;
    }
    .testimonial-card {
      min-width: 300px;
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 1.8rem;
      border-left: 4px solid var(--cyber-cyan);
      scroll-snap-align: start;
    }
    /* FAQ */
    .accordion-k1 .accordion-item {
      background: transparent;
      border: 1px solid var(--border-cyan);
      margin-bottom: 12px;
      border-radius: var(--radius-card);
    }
    .accordion-k1 .accordion-button {
      background: var(--card-bg);
      color: #fff;
      font-weight: 600;
      border-radius: var(--radius-card);
      padding: 1.2rem 1.5rem;
    }
    .accordion-k1 .accordion-button:not(.collapsed) {
      background: #1C2438;
      color: var(--cyber-cyan);
    }
    .accordion-k1 .accordion-body {
      background: #1C2438;
      color: #D1D5DB;
    }
    /* CTA 底部 */
    .cta-final {
      background: linear-gradient(180deg, #FF4655 0%, #0A0E17 100%);
      text-align: center;
      padding: 80px 0;
    }
    .footer-k1 {
      background: #0A0E17;
      border-top: 1px solid rgba(255,255,255,0.05);
      padding: 3rem 0 2rem;
    }
    @media (max-width: 992px) {
      .search-wrapper {
        max-width: 250px;
        margin: 0 1rem;
      }
      h1 { font-size: 2.8rem; }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 1rem;
        padding: 1rem 0;
      }
      .nav-links.active {
        display: flex;
      }
      .hamburger {
        display: block;
      }
      .navbar-k1 {
        flex-wrap: wrap;
      }
      .search-wrapper {
        order: 3;
        margin: 0.8rem 0 0;
        max-width: 100%;
        width: 100%;
      }
      .hero-content h1 {
        font-size: 2.4rem;
      }
      section {
        padding: 60px 0;
      }
      .stat-number {
        font-size: 2.5rem;
      }
    }