/* ============ 基础与变量 ============ */
    :root {
      --bg: #0a0e1a;
      --bg-soft: #0f1526;
      --bg-card: #131a2e;
      --bg-card-hover: #182140;
      --primary: #4f46e5;
      --secondary: #7c3aed;
      --accent: #22d3ee;
      --text: #e6e9f2;
      --text-muted: #9aa3b8;
      --border: rgba(124, 58, 237, 0.18);
      --gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
      --gradient-text: linear-gradient(135deg, #818cf8 0%, #c084fc 60%, #22d3ee 100%);
      --radius: 16px;
      --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
      --shadow-lg: 0 20px 50px rgba(79, 70, 229, 0.35);
      --nav-h: 72px;
    }

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

    html { scroll-behavior: smooth; }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: "Inter", "Poppins", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    ::selection { background: rgba(124, 58, 237, 0.6); color: #fff; }

    ::-webkit-scrollbar { width: 10px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb {
      background: linear-gradient(180deg, #4f46e5, #7c3aed);
      border-radius: 8px;
    }

    a { color: inherit; text-decoration: none; }
    ul { list-style: none; }
    img { max-width: 100%; display: block; }

    /* ============ 背景光晕 ============ */
    .bg-glow {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      overflow: hidden;
    }
    .bg-glow::before,
    .bg-glow::after {
      content: "";
      position: absolute;
      width: 620px;
      height: 620px;
      border-radius: 50%;
      filter: blur(160px);
      opacity: 0.28;
    }
    .bg-glow::before {
      background: #4f46e5;
      top: -220px;
      left: -140px;
    }
    .bg-glow::after {
      background: #7c3aed;
      bottom: -260px;
      right: -160px;
    }
    .bg-grid {
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(124, 58, 237, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 58, 237, 0.06) 1px, transparent 1px);
      background-size: 56px 56px;
      mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
      -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
    }

    /* ============ 容器与通用 ============ */
    .container {
      width: min(1200px, 92%);
      margin: 0 auto;
    }

    section { padding: 100px 0; position: relative; }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--accent);
      background: rgba(34, 211, 238, 0.08);
      border: 1px solid rgba(34, 211, 238, 0.25);
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 18px;
    }

    .section-title {
      font-size: clamp(28px, 4vw, 42px);
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 16px;
    }
    .section-title .grad {
      background: var(--gradient-text);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-sub {
      color: var(--text-muted);
      font-size: 16px;
      max-width: 620px;
      margin-bottom: 56px;
    }

    .section-head { text-align: center; }
    .section-head .section-sub { margin-left: auto; margin-right: auto; }

    /* ============ 入场动画 ============ */
    .reveal {
      opacity: 0;
      transform: translateY(40px);
      transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
                  transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
      transition-delay: var(--d, 0s);
      will-change: opacity, transform;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* 首屏入场 */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(36px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes floatGlow {
      0%, 100% { transform: translateY(0); opacity: 0.5; }
      50% { transform: translateY(-18px); opacity: 0.9; }
    }
    @keyframes pulse {
      0%, 100% { box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.55); }
      50% { box-shadow: 0 0 0 14px rgba(79, 70, 229, 0); }
    }

    /* ============ 顶部导航 ============ */
    .navbar {
      position: fixed;
      top: 0; left: 0; right: 0;
      height: var(--nav-h);
      z-index: 100;
      display: flex;
      align-items: center;
      transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
      animation: fadeUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
    }
    .navbar.scrolled {
      background: rgba(10, 14, 26, 0.85);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
      border-bottom: 1px solid var(--border);
    }
    .navbar .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      font-family: "Poppins", sans-serif;
    }
    .logo-badge {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--gradient);
      display: grid;
      place-items: center;
      font-weight: 800;
      font-size: 18px;
      color: #fff;
      box-shadow: 0 6px 18px rgba(79, 70, 229, 0.5);
    }
    .logo span em {
      font-style: normal;
      background: var(--gradient-text);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 34px;
    }
    .nav-menu a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      transition: color 0.3s;
    }
    .nav-menu a::after {
      content: "";
      position: absolute;
      left: 0; bottom: -6px;
      width: 0; height: 2px;
      background: var(--gradient);
      border-radius: 2px;
      transition: width 0.35s ease;
    }
    .nav-menu a:hover,
    .nav-menu a.active {
      color: #fff;
    }
    .nav-menu a:hover::after,
    .nav-menu a.active::after {
      width: 100%;
    }

    .nav-cta {
      padding: 10px 24px;
      border-radius: 999px;
      background: var(--gradient);
      color: #fff !important;
      font-weight: 600;
      font-size: 14px;
      box-shadow: 0 6px 18px rgba(79, 70, 229, 0.4);
      transition: transform 0.3s, box-shadow 0.3s;
    }
    .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(124, 58, 237, 0.5); }
    .nav-cta::after { display: none; }

    /* 导航热线电话 */
    .nav-hotline {
      order: 5;
      display: flex;
      align-items: center;
      gap: 9px;
      margin-left: 18px;
      font-family: "Poppins", sans-serif;
      font-size: 15px;
      font-weight: 700;
      color: #e6e9f2;
      letter-spacing: 0.5px;
      transition: color 0.3s, transform 0.3s;
    }
    .nav-hotline .hotline-ic {
      width: 34px;
      height: 34px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      font-size: 15px;
      background: rgba(79, 70, 229, 0.18);
      border: 1px solid rgba(124, 58, 237, 0.4);
      transition: 0.3s;
    }
    .nav-hotline:hover { color: var(--accent); transform: translateY(-1px); }
    .nav-hotline:hover .hotline-ic {
      background: var(--gradient);
      border-color: transparent;
      box-shadow: 0 6px 14px rgba(79, 70, 229, 0.45);
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
      z-index: 110;
    }
    .hamburger span {
      width: 26px; height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: 0.35s;
    }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* ============ Hero ============ */
    .hero {
      min-height: 100vh;
      min-height: 100svh;
      display: flex;
      align-items: center;
      padding: calc(var(--nav-h) + 40px) 0 80px;
      overflow: hidden;
    }
    .hero-inner {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 18px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      background: rgba(34, 211, 238, 0.07);
      border: 1px solid rgba(34, 211, 238, 0.28);
      margin-bottom: 26px;
      animation: fadeUp 1s 0.3s both;
    }
    .hero-badge .dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 10px var(--accent);
      animation: pulse 2s infinite;
    }

    .hero h1 {
      font-size: clamp(36px, 5.2vw, 62px);
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: -0.5px;
      margin-bottom: 26px;
      animation: fadeUp 1s 0.45s both;
    }
    .hero h1 .grad {
      background: var(--gradient-text);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 540px;
      margin-bottom: 30px;
      animation: fadeUp 1s 0.6s both;
    }
    .hero-keywords {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 38px;
      animation: fadeUp 1s 0.75s both;
    }
    .hero-keywords li {
      padding: 7px 16px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 500;
      color: #cfd6ea;
      background: rgba(124, 58, 237, 0.12);
      border: 1px solid rgba(124, 58, 237, 0.3);
      transition: 0.3s;
    }
    .hero-keywords li:hover {
      background: rgba(124, 58, 237, 0.25);
      transform: translateY(-2px);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      animation: fadeUp 1s 0.9s both;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 15px 32px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      border: none;
      transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
    }
    .btn-primary {
      background: var(--gradient);
      color: #fff;
      box-shadow: 0 10px 30px rgba(79, 70, 229, 0.45);
    }
    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 16px 40px rgba(124, 58, 237, 0.55);
    }
    .btn-ghost {
      background: transparent;
      color: #e6e9f2;
      border: 1px solid rgba(255, 255, 255, 0.22);
    }
    .btn-ghost:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-3px);
    }

    /* Hero 右侧可视化卡片 */
    .hero-visual {
      position: relative;
      animation: fadeUp 1s 0.6s both;
    }
    .visual-card {
      position: relative;
      background: linear-gradient(160deg, rgba(79, 70, 229, 0.18), rgba(19, 26, 46, 0.9));
      border: 1px solid var(--border);
      border-radius: 24px;
      padding: 28px;
      backdrop-filter: blur(8px);
      box-shadow: var(--shadow);
    }
    .visual-card::before {
      content: "";
      position: absolute;
      inset: -1px;
      border-radius: 24px;
      padding: 1px;
      background: linear-gradient(135deg, rgba(129, 140, 248, 0.6), transparent 40%, rgba(34, 211, 238, 0.4));
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: xor;
      mask-composite: exclude;
      pointer-events: none;
    }
    .visual-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 22px;
    }
    .visual-dots { display: flex; gap: 6px; }
    .visual-dots i { width: 10px; height: 10px; border-radius: 50%; }
    .visual-dots i:nth-child(1) { background: #f87171; }
    .visual-dots i:nth-child(2) { background: #fbbf24; }
    .visual-dots i:nth-child(3) { background: #34d399; }

    .code-window {
      font-family: "Consolas", "Courier New", monospace;
      font-size: 13px;
      line-height: 1.9;
      color: #b8c2e0;
      background: rgba(10, 14, 26, 0.7);
      border: 1px solid rgba(124, 58, 237, 0.2);
      border-radius: 14px;
      padding: 18px;
      margin-bottom: 20px;
    }
    .code-window .k { color: #c084fc; }
    .code-window .s { color: #22d3ee; }
    .code-window .f { color: #818cf8; }

    .visual-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .stat {
      text-align: center;
      padding: 14px 8px;
      border-radius: 14px;
      background: rgba(10, 14, 26, 0.55);
      border: 1px solid rgba(124, 58, 237, 0.18);
    }
    .stat b {
      display: block;
      font-size: 22px;
      font-weight: 800;
      font-family: "Poppins", sans-serif;
      background: var(--gradient-text);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .stat span {
      font-size: 11px;
      color: var(--text-muted);
    }

    .floating-chip {
      position: absolute;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 10px 16px;
      border-radius: 14px;
      font-size: 12.5px;
      font-weight: 600;
      background: rgba(19, 26, 46, 0.92);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      animation: floatGlow 5s ease-in-out infinite;
      white-space: nowrap;
    }
    .floating-chip .ic {
      width: 26px; height: 26px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      font-size: 13px;
      background: var(--gradient);
    }
    .chip-1 { top: -22px; right: -10px; animation-delay: 0.4s; }
    .chip-2 { bottom: -18px; left: -24px; animation-delay: 1.2s; }

    /* 滚动提示 */
    .scroll-hint {
      position: absolute;
      bottom: 26px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
      color: var(--text-muted);
      font-size: 12px;
      letter-spacing: 2px;
    }
    .scroll-hint .line {
      width: 1px; height: 40px;
      background: linear-gradient(180deg, transparent, var(--accent));
      animation: scrollLine 1.8s infinite;
    }
    @keyframes scrollLine {
      0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
      40% { transform: scaleY(1); transform-origin: top; opacity: 1; }
      60% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
      100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
    }

    /* ============ 核心业务 ============ */
    .services { background: var(--bg-soft); }

    .service-main {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 26px;
      margin-bottom: 26px;
    }
    .service-card {
      position: relative;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 36px 30px;
      overflow: hidden;
      transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s, border-color 0.4s;
    }
    .service-card::before {
      content: "";
      position: absolute;
      top: 0; left: 0;
      width: 100%; height: 3px;
      background: var(--gradient);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.45s ease;
    }
    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(124, 58, 237, 0.5);
    }
    .service-card:hover::before { transform: scaleX(1); }

    .service-main .service-card { min-height: 300px; }
    .service-main .service-card.highlight {
      background: linear-gradient(150deg, rgba(79, 70, 229, 0.22), rgba(19, 26, 46, 0.9) 60%);
    }

    .service-icon {
      width: 58px; height: 58px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      font-size: 26px;
      margin-bottom: 22px;
      background: var(--gradient);
      box-shadow: 0 8px 22px rgba(79, 70, 229, 0.45);
      position: relative;
      z-index: 1;
    }
    .service-card h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .service-card .tagline {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      letter-spacing: 1px;
      margin-bottom: 12px;
    }
    .service-card p {
      color: var(--text-muted);
      font-size: 14.5px;
      margin-bottom: 18px;
    }
    .service-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .service-list li {
      font-size: 12px;
      padding: 5px 12px;
      border-radius: 999px;
      background: rgba(124, 58, 237, 0.12);
      border: 1px solid rgba(124, 58, 237, 0.25);
      color: #cfd6ea;
    }

    .service-minor {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .service-minor .service-card {
      padding: 28px 24px;
      min-height: 220px;
    }
    .service-minor .service-icon {
      width: 48px; height: 48px;
      font-size: 22px;
      margin-bottom: 16px;
    }
    .service-minor h3 { font-size: 17px; }

    /* ============ 优势亮点 ============ */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 26px;
    }
    .adv-card {
      text-align: center;
      padding: 40px 24px;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      transition: transform 0.4s, box-shadow 0.4s, border-color 0.4s;
    }
    .adv-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(34, 211, 238, 0.4);
    }
    .adv-icon {
      width: 72px; height: 72px;
      margin: 0 auto 22px;
      border-radius: 22px;
      display: grid;
      place-items: center;
      font-size: 30px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.25), rgba(124, 58, 237, 0.25));
      border: 1px solid rgba(124, 58, 237, 0.4);
      color: #a5b4fc;
      transition: 0.4s;
    }
    .adv-card:hover .adv-icon {
      background: var(--gradient);
      color: #fff;
      box-shadow: 0 10px 28px rgba(79, 70, 229, 0.5);
      transform: scale(1.06) rotate(-4deg);
    }
    .adv-card h3 { font-size: 17px; margin-bottom: 10px; }
    .adv-card p { font-size: 13.5px; color: var(--text-muted); }

    /* ============ 合作流程 ============ */
    .process { background: var(--bg-soft); }
    .timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
      position: relative;
    }
    .timeline::before {
      content: "";
      position: absolute;
      top: 34px;
      left: 6%;
      right: 6%;
      height: 2px;
      background: linear-gradient(90deg, #4f46e5, #7c3aed, #22d3ee);
      opacity: 0.6;
    }
    .step {
      position: relative;
      text-align: center;
      padding: 0 20px;
    }
    .step-num {
      width: 68px; height: 68px;
      margin: 0 auto 20px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: var(--bg);
      border: 2px solid rgba(124, 58, 237, 0.6);
      font-family: "Poppins", sans-serif;
      font-size: 22px;
      font-weight: 700;
      color: #c4b5fd;
      position: relative;
      z-index: 1;
      transition: 0.4s;
    }
    .step:hover .step-num {
      background: var(--gradient);
      color: #fff;
      border-color: transparent;
      box-shadow: 0 0 0 8px rgba(79, 70, 229, 0.15), 0 10px 24px rgba(124, 58, 237, 0.4);
      transform: scale(1.08);
    }
    .step h3 { font-size: 17px; margin-bottom: 8px; }
    .step p { font-size: 13.5px; color: var(--text-muted); }

    /* ============ 新闻资讯 ============ */
    .news { background: var(--bg); }
    .news-slider {
      position: relative;
      margin-bottom: 48px;
    }
    .news-track {
      display: flex;
      gap: 26px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      scrollbar-width: none;
      -ms-overflow-style: none;
      padding: 6px 2px 18px;
      cursor: grab;
    }
    .news-track::-webkit-scrollbar { display: none; }
    .news-track.dragging {
      cursor: grabbing;
      scroll-snap-type: none;
      user-select: none;
      -webkit-user-select: none;
    }
    .news-card {
      flex: 0 0 340px;
      display: flex;
      flex-direction: column;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px 26px;
      scroll-snap-align: start;
      transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s, border-color 0.4s;
    }
    .news-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(124, 58, 237, 0.5);
    }
    .news-arrow {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      z-index: 5;
      width: 46px;
      height: 46px;
      border-radius: 50%;
      border: 1px solid var(--border);
      background: rgba(19, 26, 46, 0.92);
      color: var(--text);
      font-size: 19px;
      line-height: 1;
      cursor: pointer;
      display: grid;
      place-items: center;
      box-shadow: var(--shadow);
      transition: background 0.3s, border-color 0.3s, color 0.3s, transform 0.3s, opacity 0.3s;
    }
    .news-arrow:hover:not(:disabled) {
      background: var(--gradient);
      border-color: transparent;
      color: #fff;
      transform: translateY(-50%) scale(1.08);
    }
    .news-arrow:disabled {
      opacity: 0.35;
      cursor: not-allowed;
    }
    .news-arrow.prev { left: -56px; }
    .news-arrow.next { right: -56px; }
    .news-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
      flex-wrap: wrap;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      font-family: "Poppins", sans-serif;
      letter-spacing: 0.5px;
    }
    .news-tag {
      font-size: 11px;
      font-weight: 600;
      padding: 3px 11px;
      border-radius: 999px;
      background: rgba(34, 211, 238, 0.1);
      border: 1px solid rgba(34, 211, 238, 0.25);
      color: var(--accent);
    }
    .news-tag.hot {
      background: rgba(124, 58, 237, 0.14);
      border-color: rgba(124, 58, 237, 0.35);
      color: #c4b5fd;
    }
    .news-card h3 {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.5;
      margin-bottom: 10px;
      color: var(--text);
      transition: color 0.3s;
    }
    .news-card h3 a:hover { color: #a5b4fc; }
    .news-card p {
      font-size: 13.5px;
      color: var(--text-muted);
      flex: 1;
    }
    .news-more {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 18px;
      font-size: 13px;
      font-weight: 600;
      color: #a5b4fc;
      transition: gap 0.3s, color 0.3s;
    }
    .news-more:hover { gap: 10px; color: var(--accent); }
    .news-center { text-align: center; }

    /* ============ 联系我们 ============ */
    .contact-wrap {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 48px;
      align-items: start;
    }
    .contact-info h3 {
      font-size: 24px;
      margin-bottom: 14px;
    }
    .contact-info > p {
      color: var(--text-muted);
      margin-bottom: 34px;
      font-size: 15px;
    }
    .contact-item {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px 0;
      border-bottom: 1px dashed rgba(124, 58, 237, 0.2);
    }
    .contact-item .ic {
      width: 46px; height: 46px;
      flex-shrink: 0;
      border-radius: 13px;
      display: grid;
      place-items: center;
      font-size: 19px;
      background: rgba(79, 70, 229, 0.15);
      border: 1px solid rgba(124, 58, 237, 0.35);
    }
    .contact-item .label {
      font-size: 12px;
      color: var(--text-muted);
    }
    .contact-item .value {
      font-size: 15px;
      font-weight: 600;
    }

    .contact-qr-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 36px 34px;
      box-shadow: var(--shadow);
      text-align: center;
      transition: transform 0.4s, box-shadow 0.4s, border-color 0.4s;
    }
    .contact-qr-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(124, 58, 237, 0.5);
    }
    .contact-qr-head {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 14px;
      margin-bottom: 28px;
      text-align: left;
    }
    .contact-qr-ic {
      width: 52px;
      height: 52px;
      flex-shrink: 0;
      border-radius: 15px;
      display: grid;
      place-items: center;
      font-size: 23px;
      background: var(--gradient);
      box-shadow: 0 8px 22px rgba(79, 70, 229, 0.45);
    }
    .contact-qr-head h3 { font-size: 19px; margin-bottom: 4px; }
    .contact-qr-head p { font-size: 13px; color: var(--text-muted); }
    .contact-qr {
      width: 230px;
      height: 230px;
      margin: 0 auto 22px;
      border-radius: 16px;
      background: #fff;
      padding: 12px;
      box-shadow: 0 10px 30px rgba(79, 70, 229, 0.25);
    }
    .contact-qr svg { width: 100%; height: 100%; display: block; }
    .contact-qr-tip {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* ============ 页脚 ============ */
    footer {
      border-top: 1px solid var(--border);
      padding: 34px 0;
      background: rgba(7, 10, 18, 0.6);
    }
    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
    }
    .footer-inner p {
      font-size: 13.5px;
      color: var(--text-muted);
    }
    .footer-inner .links {
      display: flex;
      gap: 22px;
      font-size: 13px;
      color: var(--text-muted);
    }
    .footer-inner .links a:hover { color: var(--accent); }

    /* ============ 友情链接 ============ */
    .friend-links {
      display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
      margin-bottom: 20px; padding-bottom: 18px;
      border-bottom: 1px solid var(--border);
      font-size: 12px;
    }
    .friend-links .fl-label {
      flex-shrink: 0; color: var(--text-muted);
      letter-spacing: 0.5px; font-weight: 400;
      opacity: 0.7;
    }
    .friend-links .fl-label::after { content: "："; }
    .fl-list {
      flex: 1; min-width: 0;
      display: flex; flex-wrap: wrap; align-items: center;
      gap: 4px 20px;
      max-height: 24px; overflow: hidden;
      transition: max-height 0.35s ease;
    }
    .fl-list.open { max-height: none; }
    .fl-list a { color: rgba(154, 163, 184, 0.6); white-space: nowrap; transition: color 0.3s; }
    .fl-list a:hover { color: var(--accent); }
    .fl-toggle {
      flex-shrink: 0;
      display: inline-flex; align-items: center; gap: 4px;
      padding: 5px 14px; border-radius: 999px;
      background: rgba(79, 70, 229, 0.12);
      border: 1px solid rgba(124, 58, 237, 0.4);
      color: #c4b5fd; font-size: 12.5px; font-weight: 600;
      cursor: pointer; transition: 0.3s;
    }
    .fl-toggle:hover { background: rgba(79, 70, 229, 0.25); color: #fff; }

    /* ============ 备案信息 ============ */
    .footer-icp {
      display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap;
      margin-top: 16px;
      font-size: 12.5px; color: var(--text-muted);
    }
    .footer-icp a { color: var(--text-muted); transition: color 0.3s; }
    .footer-icp a:hover { color: var(--accent); }
    .footer-icp .sep { color: #5a6478; }

    /* ============ 右侧浮动工具栏 ============ */
    .float-tools {
      position: fixed;
      right: 24px;
      top: 50%;
      transform: translateY(-50%);
      z-index: 90;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .float-btn {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: var(--bg-card);
      border: 1px solid var(--border);
      color: var(--text);
      cursor: pointer;
      position: relative;
      font-size: 20px;
      box-shadow: var(--shadow);
      transition: background 0.3s, border-color 0.3s, transform 0.3s, box-shadow 0.3s;
    }
    .float-btn:hover {
      background: var(--gradient);
      border-color: transparent;
      transform: translateY(-3px);
      box-shadow: 0 10px 24px rgba(79, 70, 229, 0.5);
    }
    .float-btn .float-label {
      position: absolute;
      right: calc(100% + 12px);
      top: 50%;
      transform: translateY(-50%) translateX(6px);
      white-space: nowrap;
      font-size: 12px;
      font-weight: 600;
      color: var(--text);
      background: rgba(19, 26, 46, 0.96);
      border: 1px solid var(--border);
      padding: 7px 13px;
      border-radius: 9px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s, transform 0.3s;
    }
    .float-btn:hover .float-label {
      opacity: 1;
      transform: translateY(-50%) translateX(0);
    }
    .float-btn.phone-btn .float-label {
      font-family: "Poppins", sans-serif;
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0.5px;
      background: var(--gradient);
      border-color: transparent;
      color: #fff;
      box-shadow: 0 8px 22px rgba(79, 70, 229, 0.45);
      padding: 9px 16px;
    }
    .float-btn.to-top { display: none; }
    .float-btn.to-top.show { display: grid; }

    /* ============ 微信客服弹窗 ============ */
    .modal-mask {
      position: fixed;
      inset: 0;
      z-index: 200;
      display: none;
      align-items: center;
      justify-content: center;
      background: rgba(6, 9, 18, 0.75);
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      opacity: 0;
      transition: opacity 0.3s;
    }
    .modal-mask.open {
      display: flex;
      opacity: 1;
    }
    .modal-box {
      position: relative;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 40px 42px 36px;
      text-align: center;
      max-width: 92%;
      width: 340px;
      box-shadow: var(--shadow-lg);
      transform: translateY(24px) scale(0.95);
      transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .modal-mask.open .modal-box { transform: none; }
    .modal-close {
      position: absolute;
      top: 12px;
      right: 12px;
      width: 34px;
      height: 34px;
      border-radius: 50%;
      border: 1px solid var(--border);
      background: rgba(10, 14, 26, 0.6);
      color: var(--text-muted);
      font-size: 17px;
      line-height: 1;
      cursor: pointer;
      transition: 0.3s;
    }
    .modal-close:hover {
      color: #fff;
      border-color: var(--accent);
    }
    .modal-qr {
      width: 210px;
      height: 210px;
      margin: 0 auto 22px;
      border-radius: 16px;
      background: #fff;
      padding: 12px;
      box-shadow: 0 10px 30px rgba(79, 70, 229, 0.25);
    }
    .modal-qr svg { width: 100%; height: 100%; display: block; }
    .modal-box h4 {
      font-size: 19px;
      margin-bottom: 8px;
    }
    .modal-box p {
      font-size: 13.5px;
      color: var(--text-muted);
    }

    /* ============ 响应式 ============ */
    @media (max-width: 1024px) {
      section { padding: 80px 0; }
      .hero-inner { grid-template-columns: 1fr; gap: 64px; }
      .hero-visual { max-width: 560px; margin: 0 auto; }
      .scroll-hint { display: none; }
      .service-main { grid-template-columns: 1fr; }
      .service-minor { grid-template-columns: repeat(2, 1fr); }
      .advantages-grid { grid-template-columns: repeat(2, 1fr); }
      .news-card { flex-basis: 320px; }
      .timeline { grid-template-columns: repeat(2, 1fr); gap: 40px 0; }
      .timeline::before { display: none; }
      .contact-wrap { grid-template-columns: 1fr; }
    }

    @media (max-width: 640px) {
      .hamburger { display: flex; }
      .nav-menu {
        position: fixed;
        top: 0; right: -100%;
        width: 260px;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        background: rgba(10, 14, 26, 0.97);
        backdrop-filter: blur(16px);
        border-left: 1px solid var(--border);
        transition: right 0.45s cubic-bezier(0.22, 1, 0.36, 1);
        padding: 40px 0;
      }
      .nav-menu.open { right: 0; }
      .nav-menu a { font-size: 17px; }
      .nav-cta { display: none; }
      .hamburger { order: 6; }
      .nav-hotline { order: 5; font-size: 13px; gap: 6px; margin-left: auto; }
      .nav-hotline .hotline-ic { width: 30px; height: 30px; font-size: 13px; }

      .hero { padding-top: calc(var(--nav-h) + 24px); }
      .hero h1 { font-size: 34px; }
      .hero-actions .btn { width: 100%; justify-content: center; }
      .floating-chip.chip-1 { right: -6px; }
      .floating-chip.chip-2 { left: -6px; }

      .service-minor { grid-template-columns: 1fr; }
      .advantages-grid { grid-template-columns: 1fr; }
      .news-card { flex-basis: 82%; }
      .timeline { grid-template-columns: 1fr; }
      .news-arrow { display: none; }
      .contact-qr-card { padding: 28px 20px; }
      .contact-qr { width: 190px; height: 190px; }
      .footer-inner { flex-direction: column; text-align: center; }

      .float-tools { right: 14px; gap: 10px; }
      .float-btn { width: 44px; height: 44px; font-size: 17px; border-radius: 12px; }
      .modal-box { padding: 32px 24px 30px; }
      .modal-qr { width: 180px; height: 180px; }
    }

    /* 降低动效偏好 */
    @media (prefers-reduced-motion: reduce) {
      * { animation: none !important; transition: none !important; }
      .reveal { opacity: 1; transform: none; }
    }