/* ===========================
   千兮财税 - 官网样式
   =========================== */

/* ---------- Reset & Base ---------- */
/* ===== PAGE HERO ===== */
    .page-hero {
      background: linear-gradient(135deg, #1a365d 0%, #2c5282 50%, #3182ce 100%);
      padding: 80px 0 60px;
      position: relative;
      overflow: hidden;
    }
    .page-hero::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -10%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
      border-radius: 50%;
    }
    .page-hero .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: rgba(255,255,255,0.7);
      margin-bottom: 20px;
    }
    .page-hero .breadcrumb a {
      color: rgba(255,255,255,0.7);
      text-decoration: none;
      transition: color 0.3s;
    }
    .page-hero .breadcrumb a:hover { color: #fff; }
    .page-hero .breadcrumb span { opacity: 0.5; }
    .page-hero h1 {
      font-size: 42px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .page-hero .page-hero-sub {
      font-size: 18px;
      color: rgba(255,255,255,0.85);
      max-width: 600px;
      line-height: 1.7;
    }
    .page-hero-tags {
      display: flex;
      gap: 12px;
      margin-top: 24px;
      flex-wrap: wrap;
    }
    .page-hero-tag {
      background: rgba(255,255,255,0.15);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255,255,255,0.2);
      color: #fff;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* ===== FILTER TABS ===== */
    .filter-section {
      background: #fff;
      padding: 30px 0;
      border-bottom: 1px solid #e8f4fd;
      position: sticky;
      top: 70px;
      z-index: 100;
      box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    }
    .filter-tabs {
      display: flex;
      gap: 12px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .filter-tab {
      padding: 10px 28px;
      border-radius: 50px;
      border: 2px solid #e2e8f0;
      background: #fff;
      color: #4a5568;
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.3s;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .filter-tab svg { width: 18px; height: 18px; }
    .filter-tab:hover {
      border-color: #3182ce;
      color: #3182ce;
    }
    .filter-tab.active {
      background: linear-gradient(135deg, #2c5282, #3182ce);
      border-color: transparent;
      color: #fff;
    }
    .filter-tab .count {
      background: rgba(255,255,255,0.25);
      padding: 2px 8px;
      border-radius: 10px;
      font-size: 12px;
    }
    .filter-tab.active .count { background: rgba(255,255,255,0.3); }
    .filter-tab:not(.active) .count {
      background: #f7fafc;
      color: #718096;
    }

    /* ===== STATS BANNER ===== */
    .stats-banner {
      background: linear-gradient(135deg, #ebf8ff 0%, #e6fffa 100%);
      padding: 50px 0;
    }
    .stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }
    .stat-card {
      text-align: center;
      padding: 20px;
    }
    .stat-icon {
      width: 56px;
      height: 56px;
      background: #fff;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 4px 15px rgba(44,82,130,0.1);
    }
    .stat-icon svg { width: 28px; height: 28px; color: #3182ce; }
    .stat-num {
      font-size: 36px;
      font-weight: 700;
      color: #1a365d;
      margin-bottom: 4px;
    }
    .stat-num span { font-size: 20px; }
    .stat-label {
      font-size: 14px;
      color: #718096;
    }

    /* ===== CASE SECTIONS ===== */
    .cases-section {
      padding: 80px 0;
    }
    .section-header {
      text-align: center;
      margin-bottom: 50px;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: linear-gradient(135deg, #ebf8ff, #e6fffa);
      color: #2c5282;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 16px;
      border: 1px solid rgba(44,82,130,0.1);
    }
    .section-tag svg { width: 14px; height: 14px; }
    .section-title {
      font-size: 34px;
      font-weight: 700;
      color: #1a365d;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 16px;
      color: #718096;
      max-width: 560px;
      margin: 0 auto;
      line-height: 1.7;
    }
    .case-category {
      margin-bottom: 80px;
    }
    .category-header {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-bottom: 40px;
    }
    .category-badge {
      padding: 10px 24px;
      border-radius: 50px;
      font-size: 16px;
      font-weight: 600;
      white-space: nowrap;
    }
    .category-badge.small {
      background: linear-gradient(135deg, #ebf8ff, #bee3f8);
      color: #2c5282;
    }
    .category-badge.general {
      background: linear-gradient(135deg, #e6fffa, #b2f5ea);
      color: #2c7a7b;
    }
    .category-badge.personal {
      background: linear-gradient(135deg, #faf5ff, #e9d8fd);
      color: #6b46c1;
    }
    .category-line {
      flex: 1;
      height: 2px;
      background: linear-gradient(90deg, #e2e8f0, transparent);
    }

    /* ===== CASE CARDS ===== */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .case-card {
      background: #fff;
      border-radius: 20px;
      border: 1px solid #e2e8f0;
      overflow: hidden;
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      flex-direction: column;
    }
    .case-card:hover {
      border-color: #bee3f8;
      box-shadow: 0 16px 50px rgba(44,82,130,0.12);
      transform: translateY(-6px);
    }
    .case-card-banner {
      height: 120px;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }
    .case-card-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      opacity: 0.1;
      background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 20px,
        rgba(255,255,255,0.1) 20px,
        rgba(255,255,255,0.1) 40px
      );
    }
    .case-card-banner.small { background: linear-gradient(135deg, #2c5282, #3182ce); }
    .case-card-banner.general { background: linear-gradient(135deg, #276749, #38a169); }
    .case-card-banner.personal { background: linear-gradient(135deg, #6b46c1, #805ad5); }
    .banner-icon {
      width: 60px;
      height: 60px;
      background: rgba(255,255,255,0.2);
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }
    .banner-icon svg { width: 30px; height: 30px; }
    .banner-label {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(255,255,255,0.2);
      backdrop-filter: blur(10px);
      color: #fff;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 500;
    }
    .case-card-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .case-company {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .company-logo {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: #f7fafc;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 700;
      color: #2c5282;
      border: 1px solid #e2e8f0;
    }
    .company-info h3 {
      font-size: 17px;
      font-weight: 600;
      color: #1a365d;
      margin-bottom: 4px;
    }
    .company-info .industry {
      font-size: 13px;
      color: #718096;
    }
    .case-desc {
      font-size: 14px;
      color: #4a5568;
      line-height: 1.7;
      margin-bottom: 16px;
      flex: 1;
    }
    .case-tags {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 16px;
    }
    .case-tag {
      background: #f7fafc;
      color: #4a5568;
      padding: 4px 12px;
      border-radius: 12px;
      font-size: 12px;
      border: 1px solid #e2e8f0;
    }
    .case-divider {
      height: 1px;
      background: #e2e8f0;
      margin: 16px 0;
    }
    .case-results {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .result-item {
      text-align: center;
      padding: 12px 8px;
      background: #f7fafc;
      border-radius: 10px;
    }
    .result-num {
      font-size: 20px;
      font-weight: 700;
      color: #2c5282;
      margin-bottom: 2px;
    }
    .result-num.green { color: #38a169; }
    .result-num.purple { color: #6b46c1; }
    .result-label {
      font-size: 11px;
      color: #718096;
    }

    /* ===== FEATURED CASE ===== */
    .featured-section {
      padding: 80px 0;
      background: linear-gradient(180deg, #f7fafc 0%, #fff 100%);
    }
    .featured-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .featured-left {
      position: relative;
    }
    .featured-badge {
      position: absolute;
      top: -10px;
      left: -10px;
      background: linear-gradient(135deg, #ed8936, #dd6b20);
      color: #fff;
      padding: 8px 20px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      z-index: 2;
    }
    .featured-card {
      background: #fff;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: 0 20px 60px rgba(44,82,130,0.15);
      border: 1px solid #e2e8f0;
    }
    .featured-card-header {
      padding: 30px;
      background: linear-gradient(135deg, #2c5282, #3182ce);
      color: #fff;
    }
    .featured-card-header h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .featured-card-header p {
      font-size: 14px;
      opacity: 0.85;
    }
    .featured-card-body {
      padding: 30px;
    }
    .fc-item {
      display: flex;
      gap: 16px;
      margin-bottom: 20px;
    }
    .fc-item:last-child { margin-bottom: 0; }
    .fc-num {
      width: 36px;
      height: 36px;
      min-width: 36px;
      background: linear-gradient(135deg, #ebf8ff, #bee3f8);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      color: #2c5282;
    }
    .fc-content h4 {
      font-size: 15px;
      font-weight: 600;
      color: #1a365d;
      margin-bottom: 4px;
    }
    .fc-content p {
      font-size: 13px;
      color: #718096;
      line-height: 1.6;
    }
    .featured-right h2 {
      font-size: 32px;
      font-weight: 700;
      color: #1a365d;
      margin-bottom: 16px;
      line-height: 1.4;
    }
    .featured-right > p {
      font-size: 15px;
      color: #4a5568;
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .featured-metrics {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 28px;
    }
    .metric-card {
      background: #fff;
      border-radius: 16px;
      padding: 20px;
      border: 1px solid #e2e8f0;
      text-align: center;
      transition: all 0.3s;
    }
    .metric-card:hover {
      border-color: #bee3f8;
      box-shadow: 0 4px 20px rgba(44,82,130,0.08);
    }
    .metric-card .m-icon {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, #ebf8ff, #e6fffa);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px;
    }
    .m-icon svg { width: 22px; height: 22px; color: #3182ce; }
    .metric-value {
      font-size: 28px;
      font-weight: 700;
      color: #1a365d;
      margin-bottom: 4px;
    }
    .metric-label {
      font-size: 13px;
      color: #718096;
    }

    /* ===== TESTIMONIAL ===== */
    .testimonial-section {
      padding: 80px 0;
      background: #fff;
    }
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .testimonial-card {
      background: #fff;
      border-radius: 20px;
      padding: 32px;
      border: 1px solid #e2e8f0;
      transition: all 0.4s;
      position: relative;
    }
    .testimonial-card:hover {
      border-color: #bee3f8;
      box-shadow: 0 8px 30px rgba(44,82,130,0.1);
      transform: translateY(-4px);
    }
    .testimonial-quote {
      width: 48px;
      height: 48px;
      background: linear-gradient(135deg, #ebf8ff, #e6fffa);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .testimonial-quote svg { width: 24px; height: 24px; color: #3182ce; }
    .testimonial-text {
      font-size: 15px;
      color: #4a5568;
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 20px;
      border-top: 1px solid #e2e8f0;
    }
    .author-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2c5282, #3182ce);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      font-weight: 600;
    }
    .author-info h4 {
      font-size: 15px;
      font-weight: 600;
      color: #1a365d;
      margin-bottom: 2px;
    }
    .author-info p {
      font-size: 13px;
      color: #718096;
    }
    .testimonial-rating {
      position: absolute;
      top: 32px;
      right: 32px;
      display: flex;
      gap: 2px;
    }
    .star { color: #ed8936; font-size: 14px; }

    /* ===== CTA ===== */
    .cta-section {
      padding: 80px 0;
      background: linear-gradient(135deg, #1a365d 0%, #2c5282 50%, #2b6cb0 100%);
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -20%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(49,130,206,0.3) 0%, transparent 70%);
      border-radius: 50%;
    }
    .cta-section h2 {
      font-size: 34px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      position: relative;
    }
    .cta-section p {
      font-size: 17px;
      color: rgba(255,255,255,0.8);
      margin-bottom: 32px;
      position: relative;
    }
    .cta-buttons {
      display: flex;
      gap: 16px;
      justify-content: center;
      position: relative;
    }
    .btn-white {
      background: #fff;
      color: #2c5282;
      padding: 14px 36px;
      border-radius: 50px;
      font-weight: 600;
      font-size: 16px;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.3s;
      border: none;
      cursor: pointer;
    }
    .btn-white:hover {
      background: #ebf8ff;
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    }
    .btn-outline-white {
      background: transparent;
      color: #fff;
      padding: 14px 36px;
      border-radius: 50px;
      font-weight: 600;
      font-size: 16px;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.3s;
      border: 2px solid rgba(255,255,255,0.4);
      cursor: pointer;
    }
    .btn-outline-white:hover {
      background: rgba(255,255,255,0.1);
      border-color: #fff;
    }

    /* ===== FOOTER ===== */
    .footer {
      background: #0f2137;
      color: rgba(255,255,255,0.7);
      padding: 60px 0 30px;
    }
    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-logo {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-logo .logo-icon { color: #63b3ed; }
    .footer-logo .logo-text { color: #fff; }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .footer-social {
      display: flex;
      gap: 12px;
    }
    .footer-social a {
      width: 36px;
      height: 36px;
      background: rgba(255,255,255,0.08);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255,255,255,0.7);
      transition: all 0.3s;
    }
    .footer-social a:hover {
      background: #3182ce;
      color: #fff;
    }
    .footer-links h4,
    .footer-contact h4 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 20px;
    }
    .footer-links a {
      display: block;
      color: rgba(255,255,255,0.6);
      font-size: 14px;
      margin-bottom: 12px;
      text-decoration: none;
      transition: color 0.3s;
    }
    .footer-links a:hover { color: #63b3ed; }
    .footer-contact p {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      margin-bottom: 12px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: rgba(255,255,255,0.5);
    }
    .footer-bottom p + p { margin-top: 8px; }
    .footer-bottom a {
      color: rgba(255,255,255,0.6);
      text-decoration: none;
    }
    .footer-bottom a:hover { color: #63b3ed; }

    /* ===== FLOATING CTA ===== */
    .floating-cta {
      position: fixed;
      right: 20px;
      bottom: 20px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }
    .float-btn {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.3s;
      border: none;
    }
    .float-phone {
      background: linear-gradient(135deg, #2c5282, #3182ce);
      color: #fff;
      box-shadow: 0 4px 20px rgba(44,82,130,0.4);
    }
    .float-chat {
      background: linear-gradient(135deg, #38a169, #48bb78);
      color: #fff;
      box-shadow: 0 4px 20px rgba(56,161,105,0.4);
    }
    .float-top {
      background: #fff;
      color: #2c5282;
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
      border: 1px solid #e2e8f0;
    }
    .float-btn:hover { transform: scale(1.1); }

    /* ===== ANIMATIONS ===== */
    .fade-in-up {
      opacity: 0;
      transform: translateY(30px);
      transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .fade-in-up.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .section-divider {
      width: 60px;
      height: 4px;
      background: linear-gradient(90deg, #2c5282, #3182ce);
      border-radius: 2px;
      margin: 0 auto 20px;
    }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 1024px) {
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .case-grid { grid-template-columns: repeat(2, 1fr); }
      .featured-grid { grid-template-columns: 1fr; }
      .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .page-hero h1 { font-size: 30px; }
      .section-title { font-size: 26px; }
      .stats-row { grid-template-columns: repeat(2, 1fr); gap: 16px; }
      .stat-num { font-size: 28px; }
      .case-grid { grid-template-columns: 1fr; }
      .testimonial-grid { grid-template-columns: 1fr; }
      .featured-metrics { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .cta-buttons { flex-direction: column; align-items: center; }
      .category-header { flex-direction: column; align-items: flex-start; gap: 12px; }
      .category-line { display: none; }
    }
    @media (max-width: 480px) {
      .page-hero { padding: 60px 0 40px; }
      .page-hero h1 { font-size: 26px; }
      .filter-tabs { gap: 8px; }
      .filter-tab { padding: 8px 16px; font-size: 14px; }
      .cta-section h2 { font-size: 26px; }
    }