:root {
      --navy-950: #040b18;
      --navy-900: #07152d;
      --navy-800: #0b2245;
      --navy-700: #113668;
      --blue-500: #2b79ff;
      --blue-300: #8bb7ff;
      --gold-500: #e9bd68;
      --gold-300: #f5d99d;
      --line: #06c755;
      --line-dark: #00a843;
      --red: #d93b47;
      --ink: #172033;
      --muted: #687386;
      --surface: #ffffff;
      --soft: #f3f6fb;
      --border: #dfe6f1;
      --shadow: 0 18px 50px rgba(5, 18, 42, .14);
      --radius-xl: 26px;
      --radius-lg: 18px;
      --radius-md: 13px;
      --max: 720px;
    }

    * { box-sizing: border-box; }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      margin: 0;
      color: var(--ink);
      background:
        radial-gradient(circle at 50% -10%, rgba(43, 121, 255, .22), transparent 38%),
        #eef2f8;
      font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC",
        "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
      line-height: 1.7;
      padding-bottom: calc(92px + env(safe-area-inset-bottom));
    }

    a { color: inherit; }

    img {
      display: block;
      max-width: 100%;
      height: auto;
    }

    button, a {
      -webkit-tap-highlight-color: transparent;
    }

    .page {
      width: min(100%, var(--max));
      margin: 0 auto;
      background: var(--surface);
      min-height: 100vh;
      box-shadow: 0 0 70px rgba(4, 11, 24, .12);
      overflow: hidden;
    }

    .hero {
      position: relative;
      isolation: isolate;
      padding: 22px 20px 34px;
      color: #fff;
      background:
        linear-gradient(145deg, rgba(6, 17, 38, .98), rgba(12, 50, 99, .95)),
        var(--navy-900);
      overflow: hidden;
    }

    .hero::before,
    .hero::after {
      content: "";
      position: absolute;
      z-index: -1;
      border-radius: 999px;
      filter: blur(1px);
      pointer-events: none;
    }

    .hero::before {
      width: 320px;
      height: 320px;
      right: -150px;
      top: 70px;
      background: radial-gradient(circle, rgba(43, 121, 255, .34), transparent 67%);
    }

    .hero::after {
      width: 260px;
      height: 260px;
      left: -130px;
      bottom: -100px;
      background: radial-gradient(circle, rgba(233, 189, 104, .18), transparent 70%);
    }

    .market-grid {
      position: absolute;
      inset: 0;
      z-index: -2;
      opacity: .16;
      background-image:
        linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px);
      background-size: 34px 34px;
      mask-image: linear-gradient(to bottom, #000, transparent 92%);
    }

    .topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 24px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
    }

    .brand-mark {
      display: grid;
      place-items: center;
      width: 38px;
      height: 38px;
      flex: 0 0 38px;
      border-radius: 11px;
      color: var(--navy-900);
      font-weight: 900;
      background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
      box-shadow: inset 0 1px rgba(255,255,255,.7);
    }

    .brand-text {
      font-size: 14px;
      font-weight: 800;
      letter-spacing: .03em;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .update-badge {
      flex: 0 0 auto;
      padding: 7px 10px;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 999px;
      color: #dfeaff;
      background: rgba(255,255,255,.07);
      font-size: 12px;
      line-height: 1;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      margin-bottom: 13px;
      color: var(--gold-300);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
    }

    .eyebrow::before {
      content: "";
      width: 20px;
      height: 2px;
      border-radius: 99px;
      background: currentColor;
    }

    h1 {
      max-width: 620px;
      margin: 0;
      font-size: clamp(31px, 8vw, 48px);
      line-height: 1.18;
      letter-spacing: -.035em;
    }

    .hero-highlight {
      color: var(--gold-300);
    }

    .lead {
      margin: 17px 0 0;
      color: #d6e1f4;
      font-size: 16px;
      line-height: 1.85;
    }

    .trust-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin: 20px 0;
    }

    .trust-pill {
      padding: 10px 7px;
      text-align: center;
      border: 1px solid rgba(255,255,255,.15);
      border-radius: 12px;
      color: #f3f7ff;
      background: rgba(255,255,255,.065);
      font-size: 12px;
      font-weight: 700;
      line-height: 1.35;
    }

    .primary-cta {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      width: 100%;
      min-height: 58px;
      padding: 14px 18px;
      border: 0;
      border-radius: 15px;
      color: #fff;
      background: linear-gradient(180deg, #0bd861, var(--line-dark));
      box-shadow:
        0 13px 30px rgba(6, 199, 85, .28),
        inset 0 1px rgba(255,255,255,.35);
      font-size: 18px;
      font-weight: 900;
      text-align: center;
      text-decoration: none;
      transition: transform .16s ease, filter .16s ease;
    }

    .primary-cta:hover { filter: brightness(1.04); }
    .primary-cta:active { transform: translateY(1px) scale(.995); }

    .cta-logo {
      display: block;
      width: 30px;
      height: 30px;
      flex: 0 0 30px;
      object-fit: contain;
    }

    .cta-copy {
      display: inline-block;
      line-height: 1.35;
    }

    .line-card-logo {
      display: block;
      width: 54px;
      height: 54px;
      margin: 0 auto 10px;
      object-fit: contain;
      filter: drop-shadow(0 10px 22px rgba(6,199,85,.22));
    }

    .primary-cta:focus-visible,
    .text-link:focus-visible,
    .faq summary:focus-visible {
      outline: 3px solid rgba(43, 121, 255, .32);
      outline-offset: 3px;
    }

    .cta-note {
      margin: 10px 0 0;
      color: #bfcce0;
      text-align: center;
      font-size: 12px;
    }

    .hero-preview {
      margin-top: 25px;
      padding: 13px;
      border: 1px solid rgba(255,255,255,.14);
      border-radius: 20px;
      background: rgba(255,255,255,.075);
      backdrop-filter: blur(12px);
    }

    .report-card {
      overflow: hidden;
      color: var(--ink);
      border-radius: 15px;
      background: #fff;
      box-shadow: 0 14px 36px rgba(0,0,0,.2);
    }

    .report-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding: 14px 15px;
      color: #fff;
      background: linear-gradient(110deg, var(--navy-800), var(--blue-500));
    }

    .report-head strong { font-size: 14px; }
    .report-date { font-size: 11px; opacity: .84; }

    .report-body { padding: 14px 15px 15px; }

    .report-topic {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 10px;
      padding: 10px 0;
      border-bottom: 1px solid #edf1f6;
    }

    .report-topic:last-child { border-bottom: 0; }

    .topic-no {
      display: grid;
      place-items: center;
      width: 30px;
      height: 30px;
      border-radius: 9px;
      color: var(--blue-500);
      background: #eaf2ff;
      font-size: 12px;
      font-weight: 900;
    }

    .topic-title {
      margin: 0 0 2px;
      font-size: 14px;
      font-weight: 900;
    }

    .topic-desc {
      margin: 0;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.55;
    }

    main { background: #fff; }

    .section {
      padding: 42px 20px;
      border-bottom: 1px solid #edf1f6;
    }

    .section.soft { background: var(--soft); }

    .section-kicker {
      margin: 0 0 7px;
      color: var(--blue-500);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .06em;
    }

    h2 {
      margin: 0;
      color: var(--navy-900);
      font-size: clamp(25px, 6vw, 34px);
      line-height: 1.35;
      letter-spacing: -.025em;
    }

    .section-lead {
      margin: 12px 0 0;
      color: var(--muted);
      font-size: 15px;
    }

    .feature-list {
      display: grid;
      gap: 12px;
      margin-top: 24px;
    }

    .feature {
      display: grid;
      grid-template-columns: 45px 1fr;
      gap: 13px;
      align-items: start;
      padding: 17px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: 0 8px 24px rgba(8, 25, 54, .05);
    }

    .feature-icon {
      display: grid;
      place-items: center;
      width: 45px;
      height: 45px;
      border-radius: 14px;
      color: var(--blue-500);
      background: #ebf2ff;
      font-size: 20px;
    }

    .feature h3 {
      margin: 0 0 4px;
      font-size: 16px;
      line-height: 1.45;
    }

    .feature p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.65;
    }

    .method-card {
      margin-top: 24px;
      padding: 20px;
      color: #fff;
      border-radius: var(--radius-xl);
      background:
        radial-gradient(circle at 100% 0, rgba(43,121,255,.5), transparent 34%),
        linear-gradient(145deg, var(--navy-950), var(--navy-700));
      box-shadow: var(--shadow);
    }

    .method-grid {
      display: grid;
      gap: 10px;
      margin-top: 18px;
    }

    .method-item {
      display: flex;
      align-items: flex-start;
      gap: 11px;
      padding: 12px 13px;
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 13px;
      background: rgba(255,255,255,.06);
    }

    .check {
      display: grid;
      place-items: center;
      width: 22px;
      height: 22px;
      flex: 0 0 22px;
      border-radius: 50%;
      color: var(--navy-900);
      background: var(--gold-300);
      font-size: 12px;
      font-weight: 900;
    }

    .method-item strong {
      display: block;
      font-size: 14px;
    }

    .method-item span {
      display: block;
      margin-top: 2px;
      color: #c8d7ed;
      font-size: 12px;
    }

    .timeline {
      display: grid;
      gap: 14px;
      margin-top: 24px;
    }

    .timeline-item {
      position: relative;
      padding: 17px 17px 17px 49px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: #fff;
    }

    .timeline-item::before {
      content: "";
      position: absolute;
      left: 20px;
      top: 24px;
      width: 11px;
      height: 11px;
      border: 3px solid #cfe0ff;
      border-radius: 50%;
      background: var(--blue-500);
    }

    .timeline-time {
      color: var(--blue-500);
      font-size: 12px;
      font-weight: 900;
    }

    .timeline-title {
      margin-top: 3px;
      font-size: 15px;
      font-weight: 900;
    }

    .timeline-desc {
      margin-top: 4px;
      color: var(--muted);
      font-size: 13px;
    }

    .security-box {
      margin-top: 24px;
      overflow: hidden;
      border: 1px solid #bfe6ce;
      border-radius: var(--radius-xl);
      background: #f1fff6;
    }

    .security-head {
      padding: 17px 18px;
      color: #075f31;
      background: #dff8e8;
      font-weight: 900;
    }

    .security-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 18px;
      list-style: none;
    }

    .security-list li {
      position: relative;
      padding-left: 28px;
      color: #244333;
      font-size: 14px;
    }

    .security-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 1px;
      display: grid;
      place-items: center;
      width: 19px;
      height: 19px;
      border-radius: 50%;
      color: #fff;
      background: var(--line-dark);
      font-size: 11px;
      font-weight: 900;
    }

    .line-card {
      margin-top: 25px;
      padding: 20px;
      border: 1px solid #cfead8;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(145deg, #f5fff8, #e8fcef);
      text-align: center;
    }

    .line-logo {
      display: inline-grid;
      place-items: center;
      width: 54px;
      height: 54px;
      margin-bottom: 10px;
      border-radius: 16px;
      color: #fff;
      background: var(--line);
      font-weight: 900;
      box-shadow: 0 10px 26px rgba(6,199,85,.25);
    }

    .line-card h3 {
      margin: 0;
      color: #0b5731;
      font-size: 20px;
    }

    .line-card p {
      margin: 8px 0 16px;
      color: #4b6959;
      font-size: 14px;
    }

    .line-id {
      display: inline-block;
      margin-bottom: 14px;
      padding: 8px 12px;
      border-radius: 999px;
      color: #0b5731;
      background: rgba(6,199,85,.12);
      font-size: 13px;
      font-weight: 900;
    }

    .faq-list {
      display: grid;
      gap: 11px;
      margin-top: 22px;
    }

    .faq {
      border: 1px solid var(--border);
      border-radius: 15px;
      background: #fff;
      overflow: hidden;
    }

    .faq summary {
      position: relative;
      cursor: pointer;
      padding: 16px 46px 16px 17px;
      font-size: 15px;
      font-weight: 900;
      list-style: none;
    }

    .faq summary::-webkit-details-marker { display: none; }

    .faq summary::after {
      content: "+";
      position: absolute;
      right: 17px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--blue-500);
      font-size: 23px;
      font-weight: 500;
    }

    .faq[open] summary::after { content: "−"; }

    .faq p {
      margin: 0;
      padding: 0 17px 17px;
      color: var(--muted);
      font-size: 14px;
    }

    .final {
      padding: 42px 20px 48px;
      color: #fff;
      text-align: center;
      background:
        radial-gradient(circle at 50% 0, rgba(43,121,255,.42), transparent 45%),
        linear-gradient(150deg, var(--navy-950), var(--navy-700));
    }

    .final h2 { color: #fff; }
    .final p { color: #cfdbed; }

    .final .primary-cta {
      margin-top: 20px;
    }

    footer {
      padding: 25px 20px 30px;
      color: #778396;
      background: #f8fafc;
      font-size: 12px;
      line-height: 1.8;
    }

    .footer-brand {
      margin-bottom: 8px;
      color: var(--ink);
      font-weight: 900;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 7px 14px;
      margin: 14px 0;
    }

    .text-link {
      color: #50627d;
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .sticky-wrap {
      position: fixed;
      z-index: 1000;
      left: 50%;
      bottom: calc(10px + env(safe-area-inset-bottom));
      width: min(calc(100% - 20px), 680px);
      transform: translateX(-50%);
      padding: 7px;
      border: 1px solid rgba(255,255,255,.58);
      border-radius: 18px;
      background: rgba(255,255,255,.88);
      box-shadow: 0 13px 35px rgba(5,18,42,.23);
      backdrop-filter: blur(14px);
    }

    .sticky-wrap .primary-cta {
      min-height: 53px;
      border-radius: 13px;
      font-size: 16px;
    }

    .modal {
      position: fixed;
      z-index: 3000;
      inset: 0;
      display: none;
      place-items: end center;
      padding: 16px;
      background: rgba(3, 9, 20, .68);
    }

    .modal[aria-hidden="false"] { display: grid; }

    .modal-card {
      width: min(100%, 680px);
      max-height: 82vh;
      overflow: auto;
      padding: 21px;
      border-radius: 22px;
      background: #fff;
      box-shadow: var(--shadow);
    }

    .modal-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

    .modal-head h3 { margin: 0; }

    .modal-close {
      width: 36px;
      height: 36px;
      border: 0;
      border-radius: 10px;
      background: var(--soft);
      cursor: pointer;
      font-size: 20px;
    }

    .modal-body {
      margin-top: 15px;
      color: var(--muted);
      font-size: 14px;
    }

    @media (min-width: 680px) {
      body { padding-top: 20px; }
      .page { border-radius: 24px 24px 0 0; }
      .hero { padding: 27px 34px 42px; }
      .section { padding: 52px 34px; }
      .final { padding: 52px 34px 58px; }
      footer { padding: 28px 34px 34px; }

      .feature-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .feature:last-child:nth-child(odd) {
        grid-column: 1 / -1;
      }

      .method-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }
    }

/* ===== 2026-07 UX optimizations ===== */
.brand-mark {
  position: relative;
  overflow: hidden;
  padding: 0;
  background: transparent;
}

.brand-logo,
.brand-logo-fallback {
  width: 100%;
  height: 100%;
  border-radius: inherit;
}

.brand-logo {
  display: block;
  object-fit: contain;
}

.brand-logo-fallback {
  display: none;
  place-items: center;
  color: var(--navy-900);
  font-weight: 900;
  background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
}

.brand-mark.logo-fallback .brand-logo { display: none; }
.brand-mark.logo-fallback .brand-logo-fallback { display: grid; }

.primary-cta {
  gap: 12px;
  padding: 12px 16px;
  white-space: normal;
}

.cta-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  text-align: left;
  line-height: 1.25;
  white-space: normal;
}

.cta-copy strong {
  display: block;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .01em;
}

.cta-copy small {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
  opacity: .94;
}

.sticky-wrap {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 18px);
  transition: opacity .24s ease, transform .24s ease, visibility .24s ease;
}

.sticky-wrap.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.sticky-wrap .primary-cta {
  min-height: 58px;
  padding: 9px 14px;
}

.sticky-wrap .cta-copy strong { font-size: 16px; }
.sticky-wrap .cta-copy small { font-size: 11px; margin-top: 2px; }
.sticky-wrap .cta-logo { width: 28px; height: 28px; flex-basis: 28px; }

@media (max-width: 430px) {
  .topbar { gap: 8px; }
  .brand { gap: 8px; }
  .brand-mark { width: 36px; height: 36px; flex-basis: 36px; }
  .brand-text { font-size: 13px; }
  .update-badge { padding: 6px 8px; font-size: 11px; }

  .primary-cta { padding: 11px 13px; gap: 10px; }
  .cta-logo { width: 28px; height: 28px; flex-basis: 28px; }
  .cta-copy strong { font-size: 17px; }
  .cta-copy small { font-size: 11.5px; }

  .sticky-wrap {
    width: calc(100% - 16px);
    bottom: calc(8px + env(safe-area-inset-bottom));
    padding: 6px;
  }
}

@media (max-width: 350px) {
  .cta-copy strong { font-size: 15px; }
  .cta-copy small { font-size: 10.5px; }
  .cta-logo { width: 25px; height: 25px; flex-basis: 25px; }
}