/* roulang page: index */
:root {
      --deep-green: #1B5E20;
      --gold: #D4AF37;
      --warm-stone: #F5F0E8;
      --burst-orange: #FF6D00;
      --dark-bg: #121212;
      --text-heading: #1B1B1B;
      --text-body: #3A3A3A;
      --text-muted: #6B6B6B;
      --white: #FFFFFF;
      --card-shadow: 0 4px 20px rgba(0,0,0,0.06);
      --card-hover-shadow: 0 12px 28px rgba(0,0,0,0.1);
      --radius: 8px;
      --nav-height: 64px;
      --font-heading: 'PingFang SC','Microsoft YaHei','Heiti SC',sans-serif;
      --font-body: 'Noto Serif SC','STSong','Songti SC',serif;
      --font-number: 'Oswald','Impact',sans-serif;
    }
    * {
      box-sizing: border-box;
    }
    body {
      margin: 0;
      font-family: var(--font-body);
      background-color: var(--warm-stone);
      color: var(--text-body);
      line-height: 1.6;
      font-weight: 400;
      padding-top: var(--nav-height);
    }
    h1, h2, h3, h4, .nav-logo, .btn, .number-stat, .price-number {
      font-family: var(--font-heading);
      font-weight: 700;
      letter-spacing: -0.2px;
    }
    h2 {
      font-size: 2.2rem;
      color: var(--text-heading);
      margin-bottom: 0.5rem;
      font-weight: 800;
    }
    h3.subtitle {
      font-family: var(--font-body);
      font-weight: 400;
      color: var(--text-muted);
      font-size: 1.2rem;
      margin-bottom: 2.5rem;
    }
    h4 {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--deep-green);
    }
    .container-custom {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }
    /* 导航 dark neon */
    .navbar {
      background: var(--dark-bg);
      height: var(--nav-height);
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 99;
      box-shadow: 0 2px 10px rgba(0,0,0,0.3);
      display: flex;
      align-items: center;
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }
    .nav-logo {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--gold);
      text-decoration: none;
      transition: text-shadow 0.2s ease;
    }
    .nav-logo:hover {
      text-shadow: 0 0 12px var(--gold);
      color: var(--gold);
    }
    .nav-links {
      display: flex;
      gap: 2rem;
      align-items: center;
      list-style: none;
      margin: 0;
    }
    .nav-links a {
      color: var(--white);
      text-decoration: none;
      font-family: var(--font-heading);
      font-weight: 600;
      font-size: 1rem;
      padding: 0.3rem 0;
      position: relative;
      transition: color 0.2s;
    }
    .nav-links a.active,
    .nav-links a:hover {
      color: var(--burst-orange);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--burst-orange);
      box-shadow: 0 0 12px var(--burst-orange);
    }
    .nav-cta {
      background: var(--gold);
      color: var(--deep-green) !important;
      padding: 0.5rem 1.2rem !important;
      border-radius: 4px;
      font-weight: 700;
      transition: background 0.2s, color 0.2s;
    }
    .nav-cta:hover {
      background: var(--burst-orange);
      color: white !important;
    }
    .hamburger {
      display: none;
      color: white;
      font-size: 1.8rem;
      cursor: pointer;
    }
    /* 移动端菜单 */
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: var(--dark-bg);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.2rem;
        border-top: 2px solid var(--burst-orange);
      }
      .nav-links.show {
        display: flex;
      }
      .hamburger {
        display: block;
      }
      .nav-links a {
        border-left: 3px solid transparent;
        padding-left: 0.8rem;
      }
      .nav-links a.active {
        border-left-color: var(--burst-orange);
      }
    }
    /* Hero 双栏杂志 */
    #hero {
      background: var(--deep-green);
      display: flex;
      flex-wrap: wrap;
      min-height: 550px;
    }
    .hero-left {
      width: 60%;
      padding: 4rem 3rem;
      display: flex;
      flex-direction: column;
      justify-content: center;
      background: linear-gradient(135deg, #1a4f1c 0%, #0d3310 100%);
      position: relative;
      overflow: hidden;
    }
    .hero-left::before {
      content: "";
      position: absolute;
      top: -20%;
      left: -10%;
      width: 200px;
      height: 200%;
      background: repeating-linear-gradient(45deg, rgba(212,175,55,0.15) 0px, rgba(212,175,55,0.15) 4px, transparent 4px, transparent 12px);
      transform: rotate(15deg);
      pointer-events: none;
    }
    .hero-left h1 {
      color: white;
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.3;
      position: relative;
      z-index: 1;
    }
    .hero-left h1 span {
      color: var(--gold);
    }
    .hero-right {
      width: 40%;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      position: relative;
      display: flex;
      align-items: flex-end;
      padding: 2rem;
    }
    .hero-right::after {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(27,94,32,0.65);
    }
    .hero-badges {
      position: relative;
      z-index: 2;
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }
    .badge-item {
      background: rgba(0,0,0,0.6);
      backdrop-filter: blur(4px);
      padding: 0.8rem 1rem;
      border-radius: 6px;
      text-align: center;
      color: white;
    }
    .badge-number {
      font-family: var(--font-number);
      font-size: 1.8rem;
      color: var(--gold);
      line-height: 1.2;
    }
    .hero-buttons {
      margin-top: 2rem;
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }
    .btn-gold {
      background: var(--gold);
      color: #1B5E20;
      padding: 0.8rem 2rem;
      font-weight: 700;
      border-radius: 4px;
      border: none;
      transition: 0.2s;
    }
    .btn-gold:hover {
      background: var(--burst-orange);
      color: white;
    }
    .btn-outline-white {
      border: 2px solid white;
      color: white;
      padding: 0.8rem 2rem;
      font-weight: 700;
      border-radius: 4px;
      background: transparent;
      transition: 0.2s;
    }
    .btn-outline-white:hover {
      background: white;
      color: var(--deep-green);
    }
    @media (max-width: 768px) {
      .hero-left, .hero-right {
        width: 100%;
      }
      .hero-left {
        padding: 2.5rem 1.5rem;
      }
    }
    /* 亮点网格 */
    .highlights-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
      margin: 3rem 0;
    }
    .highlight-card {
      background: white;
      padding: 1.8rem;
      border-radius: var(--radius);
      box-shadow: var(--card-shadow);
      display: flex;
      align-items: flex-start;
      gap: 1.2rem;
      transition: all 0.25s ease;
      border-left: 3px solid transparent;
    }
    .highlight-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
      border-left: 3px solid var(--gold);
    }
    .highlight-icon {
      font-size: 2.2rem;
      color: var(--gold);
      width: 40px;
      text-align: center;
    }
    .stat-large {
      font-family: var(--font-number);
      font-size: 2rem;
      color: var(--deep-green);
    }
    @media (max-width: 640px) {
      .highlights-grid {
        grid-template-columns: 1fr;
      }
    }
    /* 案例瀑布 */
    .case-card {
      display: flex;
      flex-wrap: wrap;
      background: white;
      border-radius: var(--radius);
      margin-bottom: 2rem;
      box-shadow: var(--card-shadow);
      overflow: hidden;
      transition: 0.2s;
      border-left: 4px solid transparent;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-hover-shadow);
      border-left: 4px solid var(--gold);
    }
    .case-img {
      width: 45%;
      min-height: 260px;
      background-size: cover;
      background-position: center;
    }
    .case-content {
      width: 55%;
      padding: 2rem;
    }
    .tag {
      background: #e8f5e8;
      color: #1B5E20;
      padding: 0.2rem 1rem;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    .quote {
      font-style: italic;
      color: #5a5a5a;
      margin-top: 1rem;
    }
    @media (max-width: 768px) {
      .case-img, .case-content {
        width: 100%;
      }
      .case-img {
        height: 220px;
      }
    }
    /* 对比表 */
    .compare-table {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
      margin-top: 2rem;
    }
    .plan-card {
      background: white;
      border-radius: var(--radius);
      padding: 2rem 1.2rem;
      box-shadow: var(--card-shadow);
      text-align: center;
      transition: 0.2s;
      border-top: 5px solid var(--deep-green);
      position: relative;
    }
    .plan-card.recommended {
      border-top: 5px solid var(--burst-orange);
      transform: scale(1.02);
      box-shadow: 0 10px 25px rgba(0,0,0,0.12);
    }
    .hot-badge {
      background: var(--burst-orange);
      color: white;
      padding: 0.2rem 1rem;
      border-radius: 20px;
      font-size: 0.75rem;
      position: absolute;
      top: -12px;
      right: 15px;
    }
    .price {
      font-family: var(--font-number);
      font-size: 2.3rem;
      color: var(--gold);
      background: #f5f5f5;
      padding: 0.6rem;
    }
    @media (max-width: 768px) {
      .compare-table {
        grid-template-columns: 1fr;
      }
    }
    /* FAQ */
    .accordion-title {
      font-weight: 700;
      color: var(--deep-green);
      background: #f9f7f2;
      border-radius: 6px;
    }
    .accordion-content {
      background: var(--warm-stone);
    }
    /* 联系表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
    }
    input, textarea {
      border: 1px solid #ccc;
      border-radius: 6px;
      padding: 0.8rem;
      width: 100%;
    }
    input:focus, textarea:focus {
      border-color: var(--gold);
      box-shadow: 0 0 0 3px rgba(212,175,55,0.15);
      outline: none;
    }
    .contact-image {
      background: url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
      min-height: 300px;
      border-radius: var(--radius);
    }
    footer {
      background: var(--deep-green);
      color: white;
      padding: 3rem 2rem 1.5rem;
      margin-top: 3rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    @media (max-width: 640px) {
      .footer-grid, .contact-grid {
        grid-template-columns: 1fr;
      }
    }
    button, .btn {
      cursor: pointer;
      font-family: var(--font-heading);
    }
    section {
      padding: 3.5rem 0;
    }