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

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
      background: #f8fafc;
      color: #1e293b;
      line-height: 1.7;
    }
    a { text-decoration: none; color: inherit; }

    /* ===== NAVBAR ===== */
    .navbar {
      background: #fff;
      border-bottom: 1px solid #e8edf3;
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .nav-inner {
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 24px;
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .logo { display: flex; align-items: center; gap: 4px; }
    .logo-icon {
      background: linear-gradient(135deg, #1a56db, #3b82f6);
      color: #fff;
      font-weight: 700;
      font-size: 16px;
      padding: 4px 8px;
      border-radius: 6px;
    }
    .logo-text { font-size: 17px; font-weight: 600; color: #1e293b; }
    .nav-links { display: flex; gap: 28px; font-size: 14px; color: #475569; }
    .nav-links a:hover { color: #1a56db; }
    .nav-links a.active { color: #1a56db; font-weight: 600; }
    .btn-nav {
      background: #1a56db;
      color: #fff;
      padding: 8px 20px;
      border-radius: 8px;
      font-size: 14px;
      transition: background .2s;
    }
    .btn-nav:hover { background: #1447c0; }

    /* ===== HERO ===== */
    .hero {
      background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1a56db 100%);
      color: #fff;
      padding: 80px 24px 0;
      text-align: center;
      overflow: hidden;
      position: relative;
    }
    .hero::after {
      content: '';
      display: block;
      height: 60px;
      background: #f8fafc;
      clip-path: ellipse(55% 100% at 50% 100%);
      margin-top: -1px;
    }
    .hero-tag {
      display: inline-block;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.25);
      border-radius: 20px;
      padding: 4px 16px;
      font-size: 13px;
      margin-bottom: 18px;
    }
    .hero h1 { font-size: 40px; font-weight: 700; margin-bottom: 14px; letter-spacing: 1px; }
    .hero h1 span { color: #93c5fd; }
    .hero p { font-size: 16px; opacity: .85; max-width: 560px; margin: 0 auto 40px; }
    .hero-stats {
      display: flex;
      justify-content: center;
      gap: 0;
      max-width: 640px;
      margin: 0 auto 56px;
    }
    .hero-stat {
      flex: 1;
      padding: 0 20px;
      border-right: 1px solid rgba(255,255,255,.2);
    }
    .hero-stat:last-child { border-right: none; }
    .hero-stat .num { font-size: 30px; font-weight: 700; }
    .hero-stat .num sup { font-size: 16px; }
    .hero-stat .label { font-size: 12px; opacity: .7; margin-top: 2px; }

    /* ===== SECTION ===== */
    .section { padding: 64px 24px; }
    .container { max-width: 1000px; margin: 0 auto; }
    .section-title {
      font-size: 26px;
      font-weight: 700;
      text-align: center;
      margin-bottom: 8px;
    }
    .section-title span { color: #1a56db; }
    .section-sub {
      text-align: center;
      color: #64748b;
      font-size: 14px;
      margin-bottom: 44px;
    }
    .divider {
      width: 40px;
      height: 3px;
      background: #1a56db;
      border-radius: 2px;
      margin: 10px auto 40px;
    }

    /* ===== INTRO ===== */
    .intro-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .intro-text h2 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 16px;
      line-height: 1.4;
    }
    .intro-text p {
      font-size: 14px;
      color: #475569;
      margin-bottom: 14px;
      line-height: 1.8;
    }
    .intro-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
    .tag {
      font-size: 13px;
      background: #eff6ff;
      color: #1a56db;
      padding: 5px 14px;
      border-radius: 20px;
      border: 1px solid #bfdbfe;
    }
    .intro-visual {
      background: linear-gradient(135deg, #1a56db, #2563eb);
      border-radius: 16px;
      padding: 36px 32px;
      color: #fff;
    }
    .intro-visual h3 { font-size: 18px; margin-bottom: 20px; opacity: .9; }
    .visual-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 18px;
    }
    .visual-item:last-child { margin-bottom: 0; }
    .vi-icon {
      width: 36px;
      height: 36px;
      background: rgba(255,255,255,.18);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      flex-shrink: 0;
    }
    .vi-text strong { font-size: 14px; display: block; margin-bottom: 2px; }
    .vi-text span { font-size: 12px; opacity: .75; }

    /* ===== TIMELINE ===== */
    .timeline-section { background: #fff; }
    .timeline {
      position: relative;
      max-width: 700px;
      margin: 0 auto;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 50%;
      top: 0; bottom: 0;
      width: 2px;
      background: linear-gradient(to bottom, #1a56db, #93c5fd);
      transform: translateX(-50%);
    }
    .tl-item {
      display: grid;
      grid-template-columns: 1fr 40px 1fr;
      gap: 0;
      margin-bottom: 40px;
      align-items: center;
    }
    .tl-item:last-child { margin-bottom: 0; }
    .tl-left  { text-align: right; padding-right: 24px; }
    .tl-right { text-align: left;  padding-left: 24px; }
    .tl-dot {
      width: 40px; height: 40px;
      background: #1a56db;
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      z-index: 1;
      box-shadow: 0 0 0 4px #eff6ff;
    }
    .tl-year {
      font-size: 18px;
      font-weight: 700;
      color: #1a56db;
      margin-bottom: 4px;
    }
    .tl-title { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
    .tl-desc  { font-size: 13px; color: #64748b; }
    .tl-item.right .tl-left  { grid-column: 3; text-align: left;  padding-left: 24px;  padding-right: 0; }
    .tl-item.right .tl-dot   { grid-column: 2; grid-row: 1; }
    .tl-item.right .tl-right { grid-column: 1; grid-row: 1; text-align: right; padding-left: 0; padding-right: 24px; }

    /* ===== SERVICES OVERVIEW ===== */
    .srv-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .srv-card {
      background: #fff;
      border: 1px solid #e8edf3;
      border-radius: 12px;
      padding: 28px 20px;
      text-align: center;
      transition: box-shadow .2s, transform .2s, border-color .2s;
    }
    .srv-card:hover {
      border-color: #1a56db;
      box-shadow: 0 6px 20px rgba(26,86,219,.1);
      transform: translateY(-4px);
    }
    .srv-icon { font-size: 36px; margin-bottom: 12px; }
    .srv-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
    .srv-card p  { font-size: 12px; color: #64748b; line-height: 1.7; }

    /* ===== QUALIFICATION ===== */
    .qual-section { background: #fff; }
    .qual-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .qual-card {
      border: 1px solid #e8edf3;
      border-radius: 12px;
      padding: 24px 20px;
      text-align: center;
      background: #f8fafc;
    }
    .qual-icon { font-size: 32px; margin-bottom: 10px; }
    .qual-card h4 { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
    .qual-card p  { font-size: 12px; color: #64748b; }
    .qual-badge {
      display: inline-block;
      background: #1a56db;
      color: #fff;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 4px;
      margin-top: 6px;
    }

    /* ===== TEAM ===== */
    .team-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .team-card {
      background: #fff;
      border: 1px solid #e8edf3;
      border-radius: 14px;
      overflow: hidden;
      transition: box-shadow .2s;
    }
    .team-card:hover { box-shadow: 0 8px 24px rgba(26,86,219,.1); }
    .team-avatar {
      height: 110px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 52px;
      background: linear-gradient(135deg, #eff6ff, #dbeafe);
    }
    .team-info { padding: 20px; }
    .team-name { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
    .team-role { font-size: 13px; color: #1a56db; margin-bottom: 10px; }
    .team-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
    .team-tag {
      font-size: 11px;
      background: #eff6ff;
      color: #1a56db;
      padding: 2px 8px;
      border-radius: 4px;
    }
    .team-desc { font-size: 13px; color: #64748b; line-height: 1.7; }

    /* ===== PROMISE ===== */
    .promise-section {
      background: linear-gradient(135deg, #1e3a8a, #1a56db);
      color: #fff;
    }
    .promise-section .section-title { color: #fff; }
    .promise-section .section-sub { color: rgba(255,255,255,.7); }
    .promise-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .promise-card {
      background: rgba(255,255,255,.1);
      border: 1px solid rgba(255,255,255,.2);
      border-radius: 12px;
      padding: 28px 20px;
      text-align: center;
    }
    .promise-icon { font-size: 36px; margin-bottom: 12px; }
    .promise-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
    .promise-card p  { font-size: 12px; opacity: .8; line-height: 1.7; }

    /* ===== CTA ===== */
    .cta-section {
      background: #f1f5f9;
      text-align: center;
      padding: 60px 24px;
    }
    .cta-section h2 { font-size: 26px; font-weight: 700; margin-bottom: 10px; }
    .cta-section p  { color: #64748b; font-size: 14px; margin-bottom: 28px; }
    .cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
    .btn-primary {
      background: #1a56db;
      color: #fff;
      padding: 13px 32px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 600;
      transition: background .2s, transform .2s;
    }
    .btn-primary:hover { background: #1447c0; transform: translateY(-2px); }
    .btn-outline {
      border: 2px solid #1a56db;
      color: #1a56db;
      padding: 11px 32px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 600;
      transition: all .2s;
    }
    .btn-outline:hover { background: #1a56db; color: #fff; }

    /* ===== FOOTER ===== */
    footer {
      background: #0f172a;
      color: #94a3b8;
      text-align: center;
      padding: 28px 24px;
      font-size: 13px;
    }
    footer a { color: #64748b; }
    footer a:hover { color: #fff; }

    /* ===== FLOAT ===== */
    .float-btns {
      position: fixed;
      right: 20px; bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 200;
    }
    .float-btn {
      width: 46px; height: 46px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      box-shadow: 0 4px 12px rgba(0,0,0,.15);
      cursor: pointer;
      border: none;
      transition: transform .2s;
    }
    .float-btn:hover { transform: scale(1.1); }
    .float-btn.phone { background: #16a34a; color: #fff; }
    .float-btn.top   { background: #fff; color: #475569; border: 1px solid #e8edf3; }

    /* ===== ANIMATE ===== */
    .fade-up {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity .5s ease, transform .5s ease;
    }
    .fade-up.visible { opacity: 1; transform: translateY(0); }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 900px) {
      .srv-grid, .qual-grid, .promise-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hero h1 { font-size: 28px; }
      .hero-stats { flex-wrap: wrap; }
      .hero-stat { border-right: none; border-bottom: 1px solid rgba(255,255,255,.2); padding: 12px 20px; }
      .intro-wrap { grid-template-columns: 1fr; }
      .intro-visual { order: -1; }
      .timeline::before { left: 20px; }
      .tl-item { grid-template-columns: 40px 1fr; }
      .tl-left { display: none; }
      .tl-right { padding-left: 16px; text-align: left; }
      .tl-item.right .tl-left  { display: block; grid-column: 2; grid-row: 1; padding-left: 16px; padding-right: 0; text-align: left; }
      .tl-item.right .tl-dot   { grid-column: 1; }
      .tl-item.right .tl-right { display: none; }
      .team-grid { grid-template-columns: 1fr; }
      .srv-grid, .qual-grid, .promise-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 480px) {
      .srv-grid, .qual-grid, .promise-grid { grid-template-columns: 1fr; }
    }