/* ============================================================
       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-ocean:      #0a3d5c;
      --sg-v2-ocean-lt:   #0f5278;
      --sg-v2-cyan:       #0891b2;
      --sg-v2-cyan-lt:    #22b8d8;
      --sg-v2-aqua:       #e0f7fc;
      --sg-v2-aqua2:      #f0fafe;
      --sg-v2-sand:       #f7f3ee;
      --sg-v2-amber:      #d97706;
      --sg-v2-amber-lt:   #f59e0b;
      --sg-v2-white:      #ffffff;
      --sg-v2-text:       #0c2233;
      --sg-v2-muted:      #5e849a;
      --sg-v2-border:     rgba(8,145,178,.12);
      --sg-v2-font-serif: 'Noto Serif TC', serif;
      --sg-v2-font-sans:  'DM Sans', 'Noto Sans TC', sans-serif;
      --sg-v2-r:          12px;
      --sg-v2-r-sm:       8px;
      --sg-v2-sh-xs:      0 2px 12px rgba(10,61,92,.07);
      --sg-v2-sh:         0 6px 32px rgba(10,61,92,.12);
      --sg-v2-sh-lg:      0 14px 60px rgba(10,61,92,.18);
      --sg-v2-t:          .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-aqua2);
      line-height: 1.78; font-size: 16px;
    }
    body.sg-v2-body::-webkit-scrollbar { width: 5px; }
    body.sg-v2-body::-webkit-scrollbar-track { background: var(--sg-v2-aqua); }
    body.sg-v2-body::-webkit-scrollbar-thumb { background: var(--sg-v2-cyan); border-radius: 4px; }

    /* ── TOPBAR ── */
    .sg-v2-topbar {
      position: fixed; top: 0; left: 0; width: 100%; z-index: 999;
      background: var(--sg-v2-ocean);
      display: flex; align-items: center; justify-content: space-between;
      padding: .58rem 5%;
      box-shadow: 0 2px 20px rgba(0,0,0,.30);
    }
    .sg-v2-topbar-left {
      display: flex; align-items: center; gap: .7rem;
    }
    .sg-v2-topbar-logo {
      width: 32px; height: 32px; border-radius: 50%;
      background: linear-gradient(135deg, var(--sg-v2-cyan), var(--sg-v2-cyan-lt));
      display: flex; align-items: center; justify-content: center;
      font-size: 1rem;
    }
    .sg-v2-topbar-brand {
      font-family: var(--sg-v2-font-serif);
      color: var(--sg-v2-white); font-size: 1.08rem; font-weight: 700;
      text-decoration: none; letter-spacing: .05em;
    }
    .sg-v2-topbar-nav {
      display: flex; align-items: center; gap: 1.1rem;
    }
    .sg-v2-topbar-nav a {
      color: rgba(255,255,255,.65); font-size: .84rem; text-decoration: none;
      transition: color var(--sg-v2-t);
    }
    .sg-v2-topbar-nav a:hover { color: var(--sg-v2-amber-lt); }
    .sg-v2-topbar-cta {
      background: linear-gradient(90deg, var(--sg-v2-cyan), var(--sg-v2-cyan-lt));
      color: var(--sg-v2-white) !important;
      padding: .32rem .9rem; border-radius: 20px;
      font-weight: 700 !important;
      transition: opacity var(--sg-v2-t) !important;
    }
    .sg-v2-topbar-cta:hover { opacity: .85 !important; }

    /* ── HERO – full-width cinematic ── */
    .sg-v2-hero {
      position: relative; min-height: 100vh;
      display: flex; flex-direction: column; justify-content: center;
      padding: 100px 5% 80px;
      overflow: hidden;
    }
    .sg-v2-hero-bg {
      position: absolute; inset: 0; z-index: 0;
      background:
        linear-gradient(160deg, rgba(10,61,92,.96) 0%, rgba(8,145,178,.78) 55%, rgba(10,61,92,.92) 100%),
        url('https://images.unsplash.com/photo-1504280390367-361c6d9f38f4?w=1800&q=80') center/cover no-repeat;
    }
    /* water ripple circles */
    .sg-v2-hero-bg::after {
      content: '';
      position: absolute; inset: 0;
      background:
        radial-gradient(circle at 15% 80%, rgba(34,184,216,.15) 0%, transparent 40%),
        radial-gradient(circle at 85% 20%, rgba(34,184,216,.10) 0%, transparent 35%);
    }
    /* animated wave bar at bottom */
    .sg-v2-hero::after {
      content: '';
      position: absolute; bottom: 0; left: 0; width: 100%; height: 70px; z-index: 1;
      background: var(--sg-v2-aqua2);
      clip-path: ellipse(55% 100% at 50% 100%);
    }

    .sg-v2-hero-inner {
      position: relative; z-index: 2;
      max-width: 1200px; margin: 0 auto; width: 100%;
      display: grid; grid-template-columns: 1fr 420px;
      gap: 3rem; align-items: center;
    }

    /* keyword pill */
    .sg-v2-hero-pills {
      display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.6rem;
    }
    .sg-v2-hero-pill {
      display: inline-flex; align-items: center; gap: .4rem;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.22);
      color: rgba(255,255,255,.85);
      font-size: .73rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
      padding: .26rem .8rem; border-radius: 20px;
      backdrop-filter: blur(4px);
    }
    .sg-v2-hero-pill-dot {
      width: 6px; height: 6px; border-radius: 50%;
      background: var(--sg-v2-amber-lt);
    }

    /* H1 */
    .sg-v2-hero h1 {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(2rem, 4.5vw, 3.4rem);
      font-weight: 700; color: var(--sg-v2-white);
      line-height: 1.24; margin-bottom: 1.3rem;
      letter-spacing: .02em;
    }
    .sg-v2-hero h1 .sg-v2-hl {
      color: var(--sg-v2-amber-lt);
      position: relative; display: inline-block;
    }
    .sg-v2-hero h1 .sg-v2-hl::after {
      content: '';
      position: absolute; bottom: 2px; left: 0; width: 100%; height: 3px;
      background: var(--sg-v2-amber-lt); border-radius: 2px;
    }
    .sg-v2-hero h1 .sg-v2-hl2 { color: var(--sg-v2-cyan-lt); }

    .sg-v2-hero-desc {
      color: rgba(255,255,255,.80); font-size: 1rem;
      max-width: 540px; margin-bottom: 2rem; line-height: 1.88;
    }
    .sg-v2-hero-ctas { display: flex; gap: .9rem; flex-wrap: wrap; margin-bottom: 2.4rem; }

    .sg-v2-btn-amber {
      display: inline-flex; align-items: center; gap: .45rem;
      background: var(--sg-v2-amber); color: var(--sg-v2-white);
      font-weight: 700; font-size: .97rem;
      padding: .8rem 1.85rem; border-radius: var(--sg-v2-r);
      text-decoration: none;
      box-shadow: 0 4px 20px rgba(217,119,6,.42);
      transition: transform var(--sg-v2-t), box-shadow var(--sg-v2-t), background var(--sg-v2-t);
    }
    .sg-v2-btn-amber:hover { background: var(--sg-v2-amber-lt); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(217,119,6,.50); }

    .sg-v2-btn-ghost-w {
      display: inline-flex; align-items: center; gap: .45rem;
      border: 2px solid rgba(255,255,255,.55); color: rgba(255,255,255,.90);
      font-weight: 600; font-size: .95rem;
      padding: .76rem 1.6rem; border-radius: var(--sg-v2-r);
      text-decoration: none;
      transition: background var(--sg-v2-t), border-color var(--sg-v2-t);
    }
    .sg-v2-btn-ghost-w:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.80); }

    .sg-v2-hero-trust {
      display: flex; flex-wrap: wrap; gap: 1.2rem;
    }
    .sg-v2-hero-trust-item {
      display: flex; align-items: center; gap: .4rem;
      color: rgba(255,255,255,.70); font-size: .82rem;
    }
    .sg-v2-hero-trust-item span:first-child { font-size: .95rem; }

    /* Hero right: floating info card */
    .sg-v2-hero-card {
      background: rgba(255,255,255,.12);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255,255,255,.20);
      border-radius: 16px;
      padding: 1.8rem;
      color: var(--sg-v2-white);
    }
    .sg-v2-hero-card-title {
      font-family: var(--sg-v2-font-serif);
      font-size: 1.05rem; font-weight: 700;
      margin-bottom: 1.2rem; padding-bottom: .8rem;
      border-bottom: 1px solid rgba(255,255,255,.18);
      display: flex; align-items: center; gap: .5rem;
    }
    .sg-v2-hero-card-row {
      display: flex; align-items: flex-start; gap: .65rem;
      margin-bottom: .85rem; font-size: .88rem;
    }
    .sg-v2-hero-card-row:last-of-type { margin-bottom: 0; }
    .sg-v2-hero-card-ico { flex-shrink: 0; font-size: 1rem; margin-top: .05em; }
    .sg-v2-hero-card-txt { color: rgba(255,255,255,.80); line-height: 1.65; }
    .sg-v2-hero-card-txt strong { color: var(--sg-v2-white); }
    .sg-v2-hero-card-tel {
      margin-top: 1.3rem; padding-top: 1rem;
      border-top: 1px solid rgba(255,255,255,.15);
    }
    .sg-v2-hero-card-tel a {
      display: flex; align-items: center; gap: .5rem;
      color: var(--sg-v2-amber-lt); font-size: 1.1rem; font-weight: 700;
      text-decoration: none; margin-bottom: .4rem;
    }
    .sg-v2-hero-card-tel a:hover { text-decoration: underline; }
    .sg-v2-hero-card-tel-sub { font-size: .78rem; color: rgba(255,255,255,.55); }

    /* ── METRICS BAND ── */
    .sg-v2-metrics {
      background: var(--sg-v2-ocean);
      display: grid; grid-template-columns: repeat(auto-fit, minmax(130px,1fr));
    }
    .sg-v2-metric-item {
      padding: 1.7rem 1rem; text-align: center;
      border-right: 1px solid rgba(255,255,255,.07);
    }
    .sg-v2-metric-item:last-child { border-right: none; }
    .sg-v2-metric-num {
      font-family: var(--sg-v2-font-serif);
      font-size: 2rem; font-weight: 700;
      color: var(--sg-v2-amber-lt);
    }
    .sg-v2-metric-lbl { color: rgba(255,255,255,.50); font-size: .8rem; margin-top: .22rem; }

    /* ── Section helpers ── */
    .sg-v2-sec { padding: 88px 5%; }
    .sg-v2-inner { max-width: 1200px; margin: 0 auto; }
    .sg-v2-bg-white   { background: var(--sg-v2-white); }
    .sg-v2-bg-aqua    { background: var(--sg-v2-aqua); }
    .sg-v2-bg-aqua2   { background: var(--sg-v2-aqua2); }
    .sg-v2-bg-sand    { background: var(--sg-v2-sand); }
    .sg-v2-bg-ocean   { background: var(--sg-v2-ocean); }
    .sg-v2-bg-deep    { background: linear-gradient(140deg, var(--sg-v2-ocean) 0%, var(--sg-v2-ocean-lt) 100%); }

    .sg-v2-tag {
      display: inline-block; font-size: .70rem; font-weight: 700;
      letter-spacing: .15em; text-transform: uppercase;
      color: var(--sg-v2-cyan); border-left: 3px solid var(--sg-v2-amber);
      padding-left: .65rem; margin-bottom: .9rem;
    }
    .sg-v2-tag.lt { color: rgba(255,255,255,.60); border-color: var(--sg-v2-amber-lt); }

    .sg-v2-h2 {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(1.5rem, 2.8vw, 2.2rem);
      font-weight: 700; color: var(--sg-v2-ocean);
      line-height: 1.32; margin-bottom: .65rem;
    }
    .sg-v2-h2.lt { color: var(--sg-v2-white); }
    .sg-v2-lead { font-size: .96rem; color: var(--sg-v2-muted); margin-bottom: 3rem; max-width: 560px; line-height: 1.78; }
    .sg-v2-lead.lt { color: rgba(255,255,255,.60); }

    /* ── 水塔清潔核心 2欄 ── */
    .sg-v2-tank-grid {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 4.5rem; align-items: center;
    }

    /* 左：圖片疊加 */
    .sg-v2-tank-visual { position: relative; }
    .sg-v2-tank-img-main {
      border-radius: 16px; overflow: hidden;
      box-shadow: var(--sg-v2-sh-lg);
    }
    .sg-v2-tank-img-main img {
      width: 100%; display: block; aspect-ratio: 4/3;
      object-fit: cover; transition: transform .55s ease;
    }
    .sg-v2-tank-img-main:hover img { transform: scale(1.04); }
    /* 底部漸層 caption */
    .sg-v2-tank-caption {
      position: absolute; bottom: 0; left: 0; right: 0;
      background: linear-gradient(to top, rgba(10,61,92,.88) 0%, transparent 100%);
      padding: 2rem 1.5rem 1.2rem;
      border-radius: 0 0 16px 16px;
    }
    .sg-v2-tank-caption-sub { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.65); margin-bottom: .25rem; }
    .sg-v2-tank-caption-title { font-family: var(--sg-v2-font-serif); font-size: 1rem; font-weight: 700; color: var(--sg-v2-white); }

    /* 浮動數字徽章 */
    .sg-v2-tank-badge {
      position: absolute; top: -18px; right: -18px;
      width: 96px; height: 96px; border-radius: 50%;
      background: linear-gradient(135deg, var(--sg-v2-cyan), var(--sg-v2-cyan-lt));
      display: flex; flex-direction: column; align-items: center; justify-content: center;
      font-family: var(--sg-v2-font-serif); color: var(--sg-v2-white);
      box-shadow: 0 6px 24px rgba(8,145,178,.40);
    }
    .sg-v2-tank-badge strong { font-size: 1.4rem; line-height: 1; }
    .sg-v2-tank-badge span { font-size: .68rem; opacity: .9; margin-top: .1rem; }

    /* 右：文字內容 */
    .sg-v2-tank-content h2 {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(1.4rem, 2.4vw, 2rem);
      font-weight: 700; color: var(--sg-v2-ocean);
      line-height: 1.3; margin-bottom: 1rem;
    }
    .sg-v2-tank-content p { font-size: .96rem; color: var(--sg-v2-text); margin-bottom: .9rem; line-height: 1.85; }

    /* 法規提示框 */
    .sg-v2-law-box {
      background: var(--sg-v2-aqua); border-left: 4px solid var(--sg-v2-cyan);
      border-radius: 0 var(--sg-v2-r) var(--sg-v2-r) 0;
      padding: 1rem 1.2rem; margin: 1.4rem 0;
      font-size: .88rem; color: var(--sg-v2-ocean); line-height: 1.75;
    }
    .sg-v2-law-box strong { color: var(--sg-v2-cyan); }

    /* checklist 2欄 */
    .sg-v2-chk-cols {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: .45rem .9rem; margin: 1.4rem 0 2.2rem;
    }
    .sg-v2-chk {
      display: flex; align-items: flex-start; gap: .5rem;
      font-size: .88rem; color: var(--sg-v2-text);
    }
    .sg-v2-chk::before {
      content: '✓'; flex-shrink: 0;
      width: 20px; height: 20px; border-radius: 50%;
      background: linear-gradient(135deg, var(--sg-v2-cyan), var(--sg-v2-cyan-lt));
      color: #fff; font-size: .72rem;
      display: flex; align-items: center; justify-content: center;
      margin-top: .14em;
    }

    /* ── 水塔汙染知識卡 ── */
    .sg-v2-risk-grid {
      display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
      gap: 1.2rem;
    }
    .sg-v2-risk-card {
      background: var(--sg-v2-white); border-radius: var(--sg-v2-r);
      padding: 1.6rem 1.3rem; box-shadow: var(--sg-v2-sh-xs);
      border-top: 4px solid var(--sg-v2-cyan);
      transition: transform var(--sg-v2-t), box-shadow var(--sg-v2-t);
      position: relative; overflow: hidden;
    }
    .sg-v2-risk-card:nth-child(2n) { border-top-color: var(--sg-v2-amber); }
    .sg-v2-risk-card:nth-child(3n) { border-top-color: #0e9b7a; }
    .sg-v2-risk-card:hover { transform: translateY(-5px); box-shadow: var(--sg-v2-sh); }
    .sg-v2-risk-card::before {
      content: '';
      position: absolute; top: -20px; right: -20px;
      width: 80px; height: 80px; border-radius: 50%;
      background: radial-gradient(circle, rgba(8,145,178,.06) 0%, transparent 70%);
    }
    .sg-v2-risk-ico { font-size: 1.9rem; margin-bottom: .65rem; display: block; }
    .sg-v2-risk-card h3 {
      font-family: var(--sg-v2-font-serif); font-size: .98rem; font-weight: 700;
      color: var(--sg-v2-ocean); margin-bottom: .45rem;
    }
    .sg-v2-risk-card p { font-size: .84rem; color: var(--sg-v2-muted); line-height: 1.65; }

    /* ── 清洗步驟 vertical + 視覺豐富 ── */
    .sg-v2-steps-layout {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 4rem; align-items: start;
    }
    .sg-v2-steps-list { counter-reset: sg-steps; }
    .sg-v2-step {
      display: flex; gap: 1.2rem; align-items: flex-start;
      margin-bottom: 2rem; counter-increment: sg-steps;
      position: relative;
    }
    .sg-v2-step::after {
      content: '';
      position: absolute; left: 21px; top: 48px;
      width: 2px; height: calc(100% + .5rem);
      background: linear-gradient(to bottom, var(--sg-v2-cyan), transparent);
    }
    .sg-v2-step:last-child::after { display: none; }
    .sg-v2-step-num {
      flex-shrink: 0;
      width: 44px; height: 44px; border-radius: 50%;
      background: linear-gradient(135deg, var(--sg-v2-ocean), var(--sg-v2-ocean-lt));
      color: var(--sg-v2-white); font-weight: 700; font-size: .85rem;
      display: flex; align-items: center; justify-content: center;
      box-shadow: 0 4px 14px rgba(10,61,92,.28);
      z-index: 1;
    }
    .sg-v2-step h4 {
      font-family: var(--sg-v2-font-serif); font-size: 1rem; font-weight: 700;
      color: var(--sg-v2-ocean); margin-bottom: .3rem;
    }
    .sg-v2-step p { font-size: .88rem; color: var(--sg-v2-muted); line-height: 1.7; }

    /* 右側：清洗頻率建議表 */
    .sg-v2-freq-table {
      background: var(--sg-v2-white); border-radius: var(--sg-v2-r);
      box-shadow: var(--sg-v2-sh); overflow: hidden;
    }
    .sg-v2-freq-head {
      background: var(--sg-v2-ocean); color: var(--sg-v2-white);
      padding: 1rem 1.4rem;
      font-family: var(--sg-v2-font-serif); font-size: 1rem; font-weight: 700;
      display: flex; align-items: center; gap: .5rem;
    }
    .sg-v2-freq-row {
      display: flex; align-items: center; justify-content: space-between;
      padding: .85rem 1.4rem;
      border-bottom: 1px solid var(--sg-v2-border);
      font-size: .88rem;
    }
    .sg-v2-freq-row:last-child { border-bottom: none; }
    .sg-v2-freq-type { color: var(--sg-v2-text); font-weight: 500; display: flex; align-items: center; gap: .5rem; }
    .sg-v2-freq-val {
      font-weight: 700; font-size: .84rem;
      padding: .2rem .6rem; border-radius: 12px;
    }
    .sg-v2-freq-val.green { background: #e6f7ee; color: #1a7a40; }
    .sg-v2-freq-val.blue  { background: var(--sg-v2-aqua); color: var(--sg-v2-ocean); }
    .sg-v2-freq-val.amber { background: #fef3cd; color: #7c4b00; }
    .sg-v2-freq-note {
      padding: 1rem 1.4rem;
      background: var(--sg-v2-aqua); font-size: .82rem;
      color: var(--sg-v2-cyan); line-height: 1.7;
    }

    /* ── 服務全覽 (深色) ── */
    .sg-v2-svc-grid {
      display: grid; grid-template-columns: repeat(auto-fit, minmax(210px,1fr));
      gap: 1.2rem;
    }
    .sg-v2-svc-card {
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.09);
      border-radius: var(--sg-v2-r);
      padding: 1.6rem 1.3rem;
      transition: background var(--sg-v2-t), transform var(--sg-v2-t);
    }
    .sg-v2-svc-card.highlight {
      border: 2px solid var(--sg-v2-amber-lt);
      background: rgba(245,158,11,.08);
    }
    .sg-v2-svc-card:hover { background: rgba(255,255,255,.11); transform: translateY(-3px); }
    .sg-v2-svc-ico { font-size: 1.85rem; margin-bottom: .65rem; display: block; }
    .sg-v2-svc-card h3 {
      font-family: var(--sg-v2-font-serif); font-size: .98rem; font-weight: 700;
      color: var(--sg-v2-white); margin-bottom: .4rem;
    }
    .sg-v2-svc-card p { font-size: .84rem; color: rgba(255,255,255,.58); line-height: 1.65; }

    /* ── Why Us 2×3 ── */
    .sg-v2-why-grid {
      display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
      gap: 1.4rem;
    }
    .sg-v2-why-card {
      background: var(--sg-v2-white); border-radius: var(--sg-v2-r);
      padding: 1.7rem 1.4rem; box-shadow: var(--sg-v2-sh-xs);
      display: flex; gap: 1.1rem; align-items: flex-start;
      transition: box-shadow var(--sg-v2-t), transform var(--sg-v2-t);
    }
    .sg-v2-why-card:hover { box-shadow: var(--sg-v2-sh); transform: translateY(-3px); }
    .sg-v2-why-ico {
      flex-shrink: 0; width: 54px; height: 54px; border-radius: 14px;
      background: var(--sg-v2-aqua);
      display: flex; align-items: center; justify-content: center;
      font-size: 1.5rem;
    }
    .sg-v2-why-card h3 {
      font-family: var(--sg-v2-font-serif); font-size: .97rem; font-weight: 700;
      color: var(--sg-v2-ocean); margin-bottom: .3rem;
    }
    .sg-v2-why-card p { font-size: .84rem; color: var(--sg-v2-muted); line-height: 1.65; }

    /* ── 地區 ── */
    .sg-v2-geo-grid {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 3.5rem; align-items: start;
    }
    .sg-v2-geo-text p { font-size: .96rem; color: var(--sg-v2-muted); margin-bottom: .9rem; line-height: 1.85; }
    .sg-v2-chips { display: flex; flex-wrap: wrap; gap: .58rem; margin-top: 1.4rem; }
    .sg-v2-chip {
      background: var(--sg-v2-white);
      border: 1.5px solid var(--sg-v2-cyan);
      color: var(--sg-v2-cyan); font-size: .83rem; font-weight: 600;
      padding: .3rem .78rem; border-radius: 20px; letter-spacing: .02em;
      transition: background var(--sg-v2-t), color var(--sg-v2-t), border-color var(--sg-v2-t);
    }
    .sg-v2-chip:hover { background: var(--sg-v2-cyan); color: var(--sg-v2-white); border-color: var(--sg-v2-cyan); }
    .sg-v2-geo-note {
      margin-top: 1.4rem; padding: 1rem 1.2rem;
      background: var(--sg-v2-aqua); border-left: 3px solid var(--sg-v2-amber);
      border-radius: 0 var(--sg-v2-r) var(--sg-v2-r) 0;
      font-size: .87rem; color: var(--sg-v2-muted); line-height: 1.75;
    }
    .sg-v2-contact-card {
      background: var(--sg-v2-white); border-radius: var(--sg-v2-r);
      padding: 2rem; box-shadow: var(--sg-v2-sh);
    }
    .sg-v2-contact-card h3 {
      font-family: var(--sg-v2-font-serif); font-size: 1.05rem; font-weight: 700;
      color: var(--sg-v2-ocean); padding-bottom: .8rem; margin-bottom: 1.2rem;
      border-bottom: 1px solid var(--sg-v2-border);
    }
    .sg-v2-contact-row {
      display: flex; gap: .7rem; margin-bottom: .9rem;
      font-size: .9rem; align-items: flex-start;
    }
    .sg-v2-contact-ico { flex-shrink: 0; font-size: 1.05rem; margin-top: .05em; }
    .sg-v2-contact-info { color: var(--sg-v2-text); line-height: 1.65; }
    .sg-v2-contact-info a { color: var(--sg-v2-cyan); text-decoration: none; font-weight: 700; }
    .sg-v2-contact-info a:hover { text-decoration: underline; }
    .sg-v2-contact-highlight {
      margin-top: 1rem; padding: .9rem 1rem;
      background: var(--sg-v2-aqua); border-radius: var(--sg-v2-r-sm);
      font-size: .83rem; color: var(--sg-v2-ocean); line-height: 1.65;
    }

    /* ── FAQ ── */
    .sg-v2-faq-wrap { max-width: 780px; }
    .sg-v2-faq-item { border-bottom: 1px solid var(--sg-v2-border); }
    .sg-v2-faq-q {
      padding: 1.1rem 0;
      font-family: var(--sg-v2-font-serif); font-size: 1rem; font-weight: 700;
      color: var(--sg-v2-ocean); cursor: pointer;
      display: flex; align-items: flex-start;
      justify-content: space-between; gap: 1rem; user-select: none;
    }
    .sg-v2-faq-q::after {
      content: '+'; color: var(--sg-v2-cyan);
      font-size: 1.45rem; line-height: 1; flex-shrink: 0;
      transition: transform var(--sg-v2-t);
    }
    .sg-v2-faq-item.open .sg-v2-faq-q::after { transform: rotate(45deg); }
    .sg-v2-faq-a {
      display: none; padding-bottom: 1.1rem;
      font-size: .92rem; color: var(--sg-v2-muted); line-height: 1.82;
    }
    .sg-v2-faq-item.open .sg-v2-faq-a { display: block; animation: sg-v2-fi .3s ease; }
    @keyframes sg-v2-fi { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }

    /* ── CTA ── */
    .sg-v2-cta-sec {
      background: var(--sg-v2-ocean);
      position: relative; overflow: hidden;
      padding: 6rem 5%; text-align: center;
    }
    .sg-v2-cta-sec::before {
      content: '';
      position: absolute; inset: 0;
      background:
        radial-gradient(circle at 20% 60%, rgba(8,145,178,.25) 0%, transparent 50%),
        radial-gradient(circle at 80% 40%, rgba(245,158,11,.12) 0%, transparent 45%),
        repeating-linear-gradient(-45deg, transparent, transparent 30px, rgba(255,255,255,.015) 30px, rgba(255,255,255,.015) 32px);
    }
    .sg-v2-cta-inner { position: relative; z-index: 2; }
    .sg-v2-cta-sec h2 {
      font-family: var(--sg-v2-font-serif);
      font-size: clamp(1.6rem, 3vw, 2.5rem);
      color: var(--sg-v2-white); font-weight: 700; margin-bottom: .9rem;
    }
    .sg-v2-cta-sec p { color: rgba(255,255,255,.70); font-size: .97rem; margin-bottom: 2.8rem; }
    .sg-v2-cta-cards { display: flex; justify-content: center; gap: 1.4rem; flex-wrap: wrap; }
    .sg-v2-cta-card {
      background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
      border-radius: var(--sg-v2-r); padding: 1.5rem 2.2rem;
      text-decoration: none; text-align: left; min-width: 220px;
      transition: background var(--sg-v2-t), transform var(--sg-v2-t);
    }
    .sg-v2-cta-card:hover { background: rgba(255,255,255,.14); transform: translateY(-3px); }
    .sg-v2-cta-lbl { font-size: .75rem; letter-spacing: .1em; color: rgba(255,255,255,.52); margin-bottom: .22rem; }
    .sg-v2-cta-num { font-size: 1.25rem; font-weight: 700; color: var(--sg-v2-amber-lt); letter-spacing: .02em; }
    .sg-v2-cta-sub { font-size: .8rem; color: rgba(255,255,255,.58); margin-top: .2rem; }

    /* ── FOOTER ── */
    .sg-v2-footer { background: #051e2e; padding: 3rem 5% 1.5rem; }
    .sg-v2-footer-grid {
      display: grid; grid-template-columns: 2fr 1fr 1fr;
      gap: 2.5rem; padding-bottom: 2rem;
      border-bottom: 1px solid rgba(255,255,255,.07);
    }
    .sg-v2-footer-brand {
      font-family: var(--sg-v2-font-serif); color: var(--sg-v2-amber-lt);
      font-size: 1.2rem; font-weight: 700; margin-bottom: .65rem;
    }
    .sg-v2-footer-desc { color: rgba(255,255,255,.38); font-size: .84rem; line-height: 1.78; }
    .sg-v2-footer-col h4 {
      color: rgba(255,255,255,.85); font-size: .86rem; font-weight: 700;
      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(255,255,255,.40); font-size: .84rem; text-decoration: none;
      transition: color var(--sg-v2-t);
    }
    .sg-v2-footer-col ul li a:hover { color: var(--sg-v2-amber-lt); }
    .sg-v2-footer-info { list-style: none; }
    .sg-v2-footer-info li {
      color: rgba(255,255,255,.42); font-size: .84rem;
      display: flex; gap: .5rem; margin-bottom: .5rem; line-height: 1.6;
    }
    .sg-v2-footer-info li a { color: rgba(255,255,255,.52); text-decoration: none; }
    .sg-v2-footer-info li a:hover { color: var(--sg-v2-amber-lt); }
    .sg-v2-footer-btm {
      padding-top: 1.1rem; display: flex;
      justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .5rem;
    }
    .sg-v2-footer-copy, .sg-v2-footer-kw { color: rgba(255,255,255,.25); font-size: .75rem; }

    /* ── RESPONSIVE ── */
    @media (max-width: 1024px) {
      .sg-v2-hero-inner { grid-template-columns: 1fr; }
      .sg-v2-hero-card { display: none; }
    }
    @media (max-width: 960px) {
      .sg-v2-tank-grid, .sg-v2-steps-layout, .sg-v2-geo-grid { grid-template-columns: 1fr; gap: 2.5rem; }
      .sg-v2-tank-visual { order: -1; }
      .sg-v2-footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 600px) {
      .sg-v2-topbar-nav { display: none; }
      .sg-v2-hero { padding: 90px 5% 80px; min-height: auto; }
      .sg-v2-hero-ctas { flex-direction: column; }
      .sg-v2-btn-amber, .sg-v2-btn-ghost-w { width: 100%; justify-content: center; }
      .sg-v2-chk-cols { grid-template-columns: 1fr; }
      .sg-v2-tank-badge { width: 76px; height: 76px; top: -10px; right: -8px; }
      .sg-v2-footer-grid { grid-template-columns: 1fr; }
    }