/* ============================================================
       CSS NAMESPACE: sg-v2-
       完全獨立命名空間，避免與外部樣式衝突
    ============================================================ */

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

    :root {
      --sg-v2-navy:      #0d2235;
      --sg-v2-teal:      #1a6b6b;
      --sg-v2-teal-lt:   #20897e;
      --sg-v2-gold:      #c99a2e;
      --sg-v2-cream:     #f7f4ef;
      --sg-v2-white:     #ffffff;
      --sg-v2-gray-lt:   #eef2f5;
      --sg-v2-gray:      #8a9aa8;
      --sg-v2-text:      #1e2d3a;
      --sg-v2-font-serif: 'Noto Serif TC', serif;
      --sg-v2-font-sans:  'Noto Sans TC', sans-serif;
      --sg-v2-radius:    10px;
      --sg-v2-shadow:    0 4px 24px rgba(13,34,53,.10);
      --sg-v2-trans:     .28s ease;
    }

    html { scroll-behavior: smooth; }

    body.sg-v2-body {
      font-family: var(--sg-v2-font-sans);
      color: var(--sg-v2-text);
      background: var(--sg-v2-cream);
      line-height: 1.75;
      font-size: 16px;
    }

    /* ── Scrollbar ── */
    body.sg-v2-body::-webkit-scrollbar { width: 6px; }
    body.sg-v2-body::-webkit-scrollbar-track { background: var(--sg-v2-gray-lt); }
    body.sg-v2-body::-webkit-scrollbar-thumb { background: var(--sg-v2-teal); border-radius: 3px; }

    /* ── Sticky Topbar ── */
    .sg-v2-topbar {
      position: fixed; top: 0; left: 0; width: 100%; z-index: 999;
      background: var(--sg-v2-navy);
      display: flex; align-items: center; justify-content: space-between;
      padding: .65rem 5%;
      box-shadow: 0 2px 12px rgba(0,0,0,.3);
    }
    .sg-v2-topbar-brand {
      font-family: var(--sg-v2-font-serif);
      color: var(--sg-v2-gold);
      font-size: 1.15rem;
      font-weight: 700;
      letter-spacing: .06em;
      text-decoration: none;
    }
    .sg-v2-topbar-tel {
      display: flex; gap: .8rem; align-items: center;
    }
    .sg-v2-topbar-tel a {
      color: var(--sg-v2-cream);
      font-size: .85rem;
      text-decoration: none;
      transition: color var(--sg-v2-trans);
    }
    .sg-v2-topbar-tel a:hover { color: var(--sg-v2-gold); }
    .sg-v2-topbar-tel span { color: var(--sg-v2-gray); font-size: .75rem; }

    /* ── Hero ── */
    .sg-v2-hero {
      min-height: 92vh;
      background:
        linear-gradient(160deg, rgba(13,34,53,.82) 0%, rgba(26,107,107,.70) 100%),
        url('https://images.unsplash.com/photo-1581578731548-c64695cc6952?w=1600&q=80') center/cover no-repeat;
      display: flex; align-items: center;
      padding: 120px 5% 80px;
      position: relative;
      overflow: hidden;
    }
    .sg-v2-hero::after {
      content: '';
      position: absolute; bottom: 0; left: 0; width: 100%; height: 80px;
      background: linear-gradient(to top, var(--sg-v2-cream), transparent);
    }
    .sg-v2-hero-inner { max-width: 760px; }
    .sg-v2-hero-badge {
      display: inline-block;
      background: var(--sg-v2-gold);
      color: var(--sg-v2-navy);
      font-size: .75rem; font-weight: 700;
      letter-spacing: .12em;
      padding: .3rem .9rem;
      border-radius: 20px;
      margin-bottom: 1.4rem;
      text-transform: uppercase;
    }

    /* H1 */
    .sg-v2-hero h1 {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(2rem, 5vw, 3.4rem);
      font-weight: 700;
      color: var(--sg-v2-white);
      line-height: 1.3;
      margin-bottom: 1.2rem;
      letter-spacing: .03em;
    }
    .sg-v2-hero h1 em {
      font-style: normal;
      color: var(--sg-v2-gold);
      border-bottom: 3px solid var(--sg-v2-gold);
      padding-bottom: 2px;
    }
    .sg-v2-hero-desc {
      color: rgba(255,255,255,.88);
      font-size: 1.05rem;
      margin-bottom: 2.2rem;
      max-width: 560px;
    }
    .sg-v2-hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }
    .sg-v2-btn-primary {
      display: inline-flex; align-items: center; gap: .5rem;
      background: var(--sg-v2-gold);
      color: var(--sg-v2-navy);
      font-weight: 700; font-size: 1rem;
      padding: .8rem 1.8rem;
      border-radius: var(--sg-v2-radius);
      text-decoration: none;
      transition: transform var(--sg-v2-trans), box-shadow var(--sg-v2-trans);
      box-shadow: 0 4px 14px rgba(201,154,46,.40);
    }
    .sg-v2-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(201,154,46,.50); }
    .sg-v2-btn-outline {
      display: inline-flex; align-items: center; gap: .5rem;
      border: 2px solid rgba(255,255,255,.65);
      color: var(--sg-v2-white);
      font-weight: 500; font-size: 1rem;
      padding: .75rem 1.6rem;
      border-radius: var(--sg-v2-radius);
      text-decoration: none;
      transition: background var(--sg-v2-trans), border-color var(--sg-v2-trans);
    }
    .sg-v2-btn-outline:hover { background: rgba(255,255,255,.12); border-color: var(--sg-v2-white); }

    /* ── Stats Bar ── */
    .sg-v2-stats {
      background: var(--sg-v2-navy);
      padding: 1.6rem 5%;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 1rem;
      text-align: center;
    }
    .sg-v2-stat-item { padding: .5rem; }
    .sg-v2-stat-num {
      font-family: var(--sg-v2-font-serif);
      font-size: 1.9rem;
      font-weight: 700;
      color: var(--sg-v2-gold);
    }
    .sg-v2-stat-label { color: rgba(247,244,239,.70); font-size: .82rem; margin-top: .2rem; }

    /* ── Section Common ── */
    .sg-v2-section {
      padding: 80px 5%;
      max-width: 1200px;
      margin: 0 auto;
    }
    .sg-v2-section-full {
      padding: 80px 5%;
    }
    .sg-v2-section-bg {
      background: var(--sg-v2-white);
    }
    .sg-v2-section-bg2 {
      background: var(--sg-v2-navy);
    }
    .sg-v2-tag {
      display: inline-block;
      font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
      font-weight: 700;
      color: var(--sg-v2-teal);
      border-left: 3px solid var(--sg-v2-teal);
      padding-left: .6rem;
      margin-bottom: .8rem;
    }
    .sg-v2-section-title {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(1.5rem, 3vw, 2.2rem);
      font-weight: 700;
      color: var(--sg-v2-navy);
      margin-bottom: .6rem;
      line-height: 1.35;
    }
    .sg-v2-section-title.light { color: var(--sg-v2-white); }
    .sg-v2-section-subtitle {
      color: var(--sg-v2-gray);
      font-size: .96rem;
      margin-bottom: 2.8rem;
      max-width: 560px;
    }
    .sg-v2-section-subtitle.light { color: rgba(247,244,239,.65); }

    /* ── About ── */
    .sg-v2-about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
    }
    .sg-v2-about-img-wrap {
      position: relative;
      border-radius: var(--sg-v2-radius);
      overflow: hidden;
      box-shadow: var(--sg-v2-shadow);
    }
    .sg-v2-about-img-wrap img {
      width: 100%; display: block;
      aspect-ratio: 4/3; object-fit: cover;
      transition: transform .5s ease;
    }
    .sg-v2-about-img-wrap:hover img { transform: scale(1.04); }
    .sg-v2-about-badge {
      position: absolute; bottom: 1.2rem; left: 1.2rem;
      background: var(--sg-v2-gold);
      color: var(--sg-v2-navy);
      font-weight: 700; font-size: .85rem;
      padding: .45rem .9rem;
      border-radius: 6px;
    }
    .sg-v2-about-text p { color: var(--sg-v2-text); font-size: .97rem; margin-bottom: 1rem; }
    .sg-v2-about-checks { list-style: none; margin: 1.4rem 0 2rem; }
    .sg-v2-about-checks li {
      display: flex; align-items: flex-start; gap: .6rem;
      margin-bottom: .6rem; font-size: .95rem;
    }
    .sg-v2-about-checks li::before {
      content: '✔';
      color: var(--sg-v2-teal);
      font-size: .9rem;
      flex-shrink: 0;
      margin-top: .18em;
    }

    /* H2 inside about */
    .sg-v2-about-text h2 {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(1.4rem, 2.5vw, 2rem);
      font-weight: 700;
      color: var(--sg-v2-navy);
      margin-bottom: .8rem;
      line-height: 1.35;
    }

    /* ── Services ── */
    .sg-v2-services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1.4rem;
    }
    .sg-v2-service-card {
      background: var(--sg-v2-white);
      border-radius: var(--sg-v2-radius);
      padding: 1.8rem 1.5rem;
      box-shadow: var(--sg-v2-shadow);
      border-top: 4px solid var(--sg-v2-teal);
      transition: transform var(--sg-v2-trans), box-shadow var(--sg-v2-trans);
      position: relative;
      overflow: hidden;
    }
    .sg-v2-service-card::before {
      content: '';
      position: absolute; top: 0; right: 0;
      width: 60px; height: 60px;
      background: radial-gradient(circle at top right, rgba(26,107,107,.08), transparent 70%);
    }
    .sg-v2-service-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 36px rgba(13,34,53,.14);
    }
    .sg-v2-service-icon {
      font-size: 2rem; margin-bottom: .8rem; display: block;
    }
    .sg-v2-service-card h3 {
      font-family: var(--sg-v2-font-serif);
      font-size: 1.05rem; font-weight: 700;
      color: var(--sg-v2-navy);
      margin-bottom: .5rem;
    }
    .sg-v2-service-card p {
      font-size: .87rem; color: var(--sg-v2-gray);
      line-height: 1.65;
    }

    /* ── Factory Section (廠房清潔) ── */
    .sg-v2-factory-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }
    .sg-v2-factory-text h2 {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(1.4rem, 2.5vw, 2rem);
      font-weight: 700;
      color: var(--sg-v2-white);
      margin-bottom: 1rem;
      line-height: 1.35;
    }
    .sg-v2-factory-text p {
      color: rgba(247,244,239,.80);
      font-size: .95rem;
      margin-bottom: 1rem;
    }
    .sg-v2-factory-list {
      list-style: none;
      margin: 1.2rem 0 2rem;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: .5rem;
    }
    .sg-v2-factory-list li {
      color: rgba(247,244,239,.85);
      font-size: .9rem;
      display: flex; align-items: center; gap: .5rem;
    }
    .sg-v2-factory-list li::before {
      content: '▸';
      color: var(--sg-v2-gold);
    }
    .sg-v2-factory-img {
      border-radius: var(--sg-v2-radius);
      overflow: hidden;
      box-shadow: 0 8px 32px rgba(0,0,0,.35);
    }
    .sg-v2-factory-img img {
      width: 100%; display: block;
      aspect-ratio: 16/10; object-fit: cover;
    }

    /* ── Why Us ── */
    .sg-v2-why-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      text-align: center;
    }
    .sg-v2-why-item {
      padding: 1.5rem 1rem;
    }
    .sg-v2-why-icon {
      width: 68px; height: 68px;
      background: linear-gradient(135deg, var(--sg-v2-teal), var(--sg-v2-teal-lt));
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 1rem;
      font-size: 1.6rem;
      box-shadow: 0 4px 18px rgba(26,107,107,.30);
    }
    .sg-v2-why-item h3 {
      font-family: var(--sg-v2-font-serif);
      font-size: 1rem; font-weight: 700;
      color: var(--sg-v2-navy);
      margin-bottom: .45rem;
    }
    .sg-v2-why-item p { color: var(--sg-v2-gray); font-size: .87rem; }

    /* ── Service Area ── */
    .sg-v2-area-chips {
      display: flex; flex-wrap: wrap; gap: .7rem;
      margin-top: 1.8rem;
    }
    .sg-v2-area-chip {
      background: var(--sg-v2-white);
      border: 1.5px solid var(--sg-v2-teal);
      color: var(--sg-v2-teal);
      font-size: .85rem; font-weight: 600;
      padding: .35rem .85rem;
      border-radius: 20px;
      letter-spacing: .04em;
    }

    /* ── Process Steps ── */
    .sg-v2-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 1rem;
      counter-reset: step-counter;
    }
    .sg-v2-step {
      background: var(--sg-v2-white);
      border-radius: var(--sg-v2-radius);
      padding: 1.6rem 1.2rem;
      box-shadow: var(--sg-v2-shadow);
      text-align: center;
      position: relative;
      counter-increment: step-counter;
    }
    .sg-v2-step::before {
      content: counter(step-counter);
      position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
      width: 28px; height: 28px;
      background: var(--sg-v2-teal);
      color: var(--sg-v2-white);
      font-weight: 700; font-size: .82rem;
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      line-height: 28px;
    }
    .sg-v2-step h4 {
      font-family: var(--sg-v2-font-serif);
      font-weight: 700; font-size: .98rem;
      color: var(--sg-v2-navy);
      margin: .4rem 0 .4rem;
    }
    .sg-v2-step p { font-size: .82rem; color: var(--sg-v2-gray); }

    /* ── CTA Section ── */
    .sg-v2-cta-wrap {
      background: linear-gradient(135deg, var(--sg-v2-teal) 0%, var(--sg-v2-navy) 100%);
      border-radius: 16px;
      padding: 4rem 2.5rem;
      text-align: center;
      box-shadow: 0 8px 40px rgba(13,34,53,.25);
    }
    .sg-v2-cta-wrap h2 {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(1.5rem, 3vw, 2.2rem);
      color: var(--sg-v2-white);
      font-weight: 700;
      margin-bottom: .8rem;
    }
    .sg-v2-cta-wrap p { color: rgba(255,255,255,.80); margin-bottom: 2rem; font-size: .97rem; }
    .sg-v2-cta-cards {
      display: flex; justify-content: center;
      gap: 1.5rem; flex-wrap: wrap;
    }
    .sg-v2-cta-card {
      background: rgba(255,255,255,.10);
      backdrop-filter: blur(6px);
      border: 1px solid rgba(255,255,255,.20);
      border-radius: var(--sg-v2-radius);
      padding: 1.2rem 2rem;
      color: var(--sg-v2-white);
      text-decoration: none;
      transition: background var(--sg-v2-trans), transform var(--sg-v2-trans);
      min-width: 200px;
    }
    .sg-v2-cta-card:hover { background: rgba(255,255,255,.18); transform: translateY(-3px); }
    .sg-v2-cta-card-label { font-size: .78rem; letter-spacing: .1em; opacity: .7; margin-bottom: .2rem; }
    .sg-v2-cta-card-num { font-size: 1.2rem; font-weight: 700; letter-spacing: .04em; }
    .sg-v2-cta-card-sub { font-size: .82rem; opacity: .75; margin-top: .2rem; }

    /* ── FAQ ── */
    .sg-v2-faq-list { max-width: 760px; }
    .sg-v2-faq-item {
      border-bottom: 1px solid rgba(0,0,0,.08);
      padding: 1.2rem 0;
    }
    .sg-v2-faq-q {
      font-family: var(--sg-v2-font-serif);
      font-weight: 700; font-size: 1rem;
      color: var(--sg-v2-navy);
      cursor: pointer;
      display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
    }
    .sg-v2-faq-q::after {
      content: '+';
      color: var(--sg-v2-teal);
      font-size: 1.4rem; line-height: 1;
      flex-shrink: 0;
      transition: transform var(--sg-v2-trans);
    }
    .sg-v2-faq-item.open .sg-v2-faq-q::after { transform: rotate(45deg); }
    .sg-v2-faq-a {
      font-size: .93rem; color: var(--sg-v2-gray);
      line-height: 1.75; margin-top: .7rem;
      display: none;
    }
    .sg-v2-faq-item.open .sg-v2-faq-a { display: block; }

    /* ── Footer ── */
    .sg-v2-footer {
      background: var(--sg-v2-navy);
      padding: 3rem 5% 1.5rem;
    }
    .sg-v2-footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 2.5rem;
      padding-bottom: 2rem;
      border-bottom: 1px solid rgba(255,255,255,.10);
    }
    .sg-v2-footer-brand {
      font-family: var(--sg-v2-font-serif);
      color: var(--sg-v2-gold);
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: .8rem;
    }
    .sg-v2-footer-desc {
      color: rgba(247,244,239,.55);
      font-size: .85rem;
      line-height: 1.7;
    }
    .sg-v2-footer-col h4 {
      font-weight: 700; font-size: .88rem;
      color: var(--sg-v2-cream); letter-spacing: .06em;
      margin-bottom: 1rem;
    }
    .sg-v2-footer-col ul { list-style: none; }
    .sg-v2-footer-col ul li { margin-bottom: .4rem; }
    .sg-v2-footer-col ul li a {
      color: rgba(247,244,239,.55);
      text-decoration: none; font-size: .85rem;
      transition: color var(--sg-v2-trans);
    }
    .sg-v2-footer-col ul li a:hover { color: var(--sg-v2-gold); }
    .sg-v2-footer-contact li {
      color: rgba(247,244,239,.65);
      font-size: .85rem; margin-bottom: .5rem;
      display: flex; align-items: flex-start; gap: .5rem;
    }
    .sg-v2-footer-contact li span { flex-shrink: 0; }
    .sg-v2-footer-bottom {
      padding-top: 1.2rem;
      display: flex; align-items: center; justify-content: space-between;
      flex-wrap: wrap; gap: .5rem;
    }
    .sg-v2-footer-copy { color: rgba(247,244,239,.35); font-size: .78rem; }
    .sg-v2-footer-icp { color: rgba(247,244,239,.35); font-size: .78rem; }

    /* ── Responsive ── */
    @media (max-width: 900px) {
      .sg-v2-about-grid,
      .sg-v2-factory-wrap {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
      .sg-v2-factory-wrap .sg-v2-factory-img { order: -1; }
      .sg-v2-footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 600px) {
      .sg-v2-topbar-tel { display: none; }
      .sg-v2-hero { padding: 100px 5% 60px; }
      .sg-v2-hero-ctas { flex-direction: column; }
      .sg-v2-btn-primary, .sg-v2-btn-outline { width: 100%; justify-content: center; }
      .sg-v2-factory-list { grid-template-columns: 1fr; }
      .sg-v2-footer-top { grid-template-columns: 1fr; }
    }

    /* ── Animation ── */
    @keyframes sg-v2-fadeUp {
      from { opacity: 0; transform: translateY(24px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    .sg-v2-fade-up {
      animation: sg-v2-fadeUp .7s ease both;
    }
    .sg-v2-delay-1 { animation-delay: .15s; }
    .sg-v2-delay-2 { animation-delay: .30s; }
    .sg-v2-delay-3 { animation-delay: .45s; }