:root {
      --surface-glass: color-mix(in srgb, var(--surface) 85%, transparent);
      --shadow-sm: 0 2px 8px rgba(var(--shadow-color), 0.04);
      --shadow-md: 0 8px 24px rgba(var(--shadow-color), 0.08);
      --shadow-lg: 0 16px 40px rgba(var(--shadow-color), 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --radius-full: 9999px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background-color: var(--base);
      color: var(--ink);
      font-family: 'Plus Jakarta Sans', 'Noto Sans TC', system-ui, -apple-system, sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* 容器設定 */
    .container {
      width: 100%;
      max-width: 1140px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 頂部導航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: color-mix(in srgb, var(--base) 92%, transparent);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
      transition: all var(--dur-base) var(--ease-standard);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-group {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      color: var(--ink);
    }
    .logo-img {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      object-fit: cover;
    }
    .logo-text {
      font-size: 20px;
      font-weight: 800;
      letter-spacing: -0.02em;
    }
    .logo-badge {
      font-size: 11px;
      font-weight: 700;
      background: var(--brand-soft);
      color: var(--action-strong);
      padding: 2px 8px;
      border-radius: var(--radius-full);
      margin-left: 4px;
    }
    nav.nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    nav.nav-links a {
      text-decoration: none;
      color: var(--ink-2);
      font-size: 15px;
      font-weight: 600;
      transition: color var(--dur-fast) var(--ease-standard);
    }
    nav.nav-links a:hover {
      color: var(--action);
    }
    .header-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--action);
      color: var(--surface);
      text-decoration: none;
      font-size: 14px;
      font-weight: 700;
      padding: 10px 18px;
      border-radius: var(--radius-full);
      transition: all var(--dur-base) var(--ease-out);
      box-shadow: 0 4px 14px rgba(var(--shadow-color), 0.28);
    }
    .header-cta-btn:hover {
      background: var(--action-strong);
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(var(--shadow-color), 0.38);
    }

    /* 首屏 Hero 區塊 */
    section.hero-section {
      padding: 56px 0 72px;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
      gap: 48px;
      align-items: center;
    }
    .hero-content {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--surface);
      border: 1px solid var(--line);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 700;
      color: var(--action-strong);
      margin-bottom: 20px;
      box-shadow: var(--shadow-sm);
    }
    .badge-dot {
      width: 8px;
      height: 8px;
      background: var(--action);
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(var(--shadow-color), 0.25);
    }
    h1.hero-title {
      font-size: 46px;
      line-height: 1.22;
      font-weight: 900;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
      color: var(--ink);
    }
    .gradient-text {
      background: linear-gradient(135deg, var(--action-strong) 0%, var(--action) 60%, var(--action) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    p.hero-desc {
      font-size: 18px;
      line-height: 1.7;
      color: var(--ink-2);
      margin-bottom: 32px;
      max-width: 520px;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 32px;
    }
    .btn-line-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      background: var(--action);
      color: var(--surface);
      font-size: 17px;
      font-weight: 800;
      padding: 15px 28px;
      border-radius: var(--radius-full);
      text-decoration: none;
      border: none;
      cursor: pointer;
      box-shadow: 0 6px 20px rgba(var(--shadow-color), 0.35);
      transition: all var(--dur-base) var(--ease-standard);
    }
    .btn-line-primary:hover {
      background: var(--action-strong);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(var(--shadow-color), 0.45);
    }
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--surface);
      color: var(--ink);
      font-size: 15px;
      font-weight: 700;
      padding: 15px 24px;
      border-radius: var(--radius-full);
      text-decoration: none;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      transition: all var(--dur-base) var(--ease-standard);
    }
    .btn-secondary:hover {
      background: var(--brand-soft);
      border-color: var(--brand);
      color: var(--action-strong);
    }
    .hero-proof {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      padding-top: 16px;
      border-top: 1px dashed var(--line);
      width: 100%;
    }
    .proof-item {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 13.5px;
      font-weight: 600;
      color: var(--ink-3);
    }
    .proof-icon {
      color: var(--action);
      font-size: 16px;
    }

    /* 互動式 LINE 模擬展示器 (Interactive Chat Demo) */
    .chat-demo-wrapper {
      position: relative;
    }
    .chat-demo-card {
      background: var(--surface);
      border-radius: 28px;
      box-shadow: var(--shadow-lg), 0 0 0 1px rgba(var(--shadow-color), 0.06);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 670px;
      border: 6px solid var(--ink);
    }
    .demo-bar-tabs {
      background: var(--brand-soft);
      padding: 10px 14px;
      border-bottom: 1px solid var(--line);
      display: flex;
      align-items: center;
      gap: 8px;
      overflow-x: auto;
      scrollbar-width: none;
    }
    .demo-bar-tabs::-webkit-scrollbar { display: none; }
    .demo-tab-label {
      font-size: 11px;
      font-weight: 800;
      color: var(--ink-3);
      white-space: nowrap;
      margin-right: 2px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .tab-btn {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-full);
      padding: 5px 12px;
      font-size: 12px;
      font-weight: 700;
      color: var(--ink-2);
      white-space: nowrap;
      cursor: pointer;
      transition: all var(--dur-fast) var(--ease-standard);
      font-family: inherit;
    }
    .tab-btn:hover {
      border-color: var(--action);
      color: var(--action-strong);
    }
    .tab-btn.active {
      background: var(--action);
      color: var(--surface);
      border-color: var(--action);
      box-shadow: 0 2px 8px rgba(var(--shadow-color), 0.3);
    }

    /* 模擬 LINE 聊天頂部 */
    .line-chat-header {
      background: var(--info); /* 專案示意對話 */
      background: linear-gradient(180deg, var(--info) 0%, var(--info) 100%);
      color: var(--surface);
      padding: 12px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .chat-header-user {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .chat-avatar-wrap {
      position: relative;
    }
    .chat-avatar {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--surface);
      object-fit: cover;
      display: block;
      border: 2px solid rgba(255,255,255,0.4);
    }
    .chat-status-dot {
      position: absolute;
      bottom: -1px;
      right: -1px;
      width: 10px;
      height: 10px;
      background: var(--action);
      border: 2px solid var(--info);
      border-radius: 50%;
    }
    .chat-header-name {
      font-size: 14.5px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 5px;
    }
    .verified-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--action);
      color: var(--surface);
      font-size: 11px;
      width: 15px;
      height: 15px;
      border-radius: 50%;
    }
    .chat-header-sub {
      font-size: 11px;
      opacity: 0.85;
    }
    .chat-header-actions {
      display: flex;
      gap: 12px;
      opacity: 0.85;
      font-size: 14px;
    }

    /* 聊天室訊息區 */
    .chat-body {
      flex: 1;
      background: var(--info-soft); /* 示意對話背景 */
      padding: 16px;
      overflow-y: auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .chat-time-divider {
      text-align: center;
      margin: 4px 0;
    }
    .chat-time-divider span {
      background: var(--ink-3);
      color: var(--surface);
      font-size: 11px;
      font-weight: 600;
      padding: 3px 10px;
      border-radius: var(--radius-full);
    }

    /* 使用者發話氣泡 */
    .msg-row-user {
      display: flex;
      justify-content: flex-end;
      align-items: flex-end;
      gap: 6px;
      animation: bubbleSlideIn var(--dur-base) var(--ease-out);
    }
    .msg-meta {
      font-size: 11px;
      color: var(--ink-3);
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      line-height: 1.2;
    }
    .msg-meta-read { font-weight: 600; }
    .user-bubble {
      background: var(--brand); /* 示意訊息氣泡 */
      color: var(--on-brand);
      font-size: 14px;
      font-weight: 500;
      padding: 9px 13px;
      border-radius: 16px 16px 2px 16px;
      max-width: 70%;
      word-break: break-all;
      box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    }

    /* 機器人回覆 (Flex Message 卡片) */
    .msg-row-bot {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      animation: cardFadeIn var(--dur-slow) var(--ease-out);
    }
    .bot-avatar-small {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--surface);
      object-fit: cover;
      flex-shrink: 0;
    }
    /* 機器人回覆 (Flex Message 卡片 - 1:1 仿真) */
    .msg-row-bot {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      animation: cardFadeIn var(--dur-slow) var(--ease-out);
    }
    .bot-avatar-small {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: var(--surface);
      object-fit: cover;
      flex-shrink: 0;
      box-shadow: 0 1px 3px rgba(0,0,0,0.15);
    }
    .bot-bubble-wrapper {
      display: flex;
      flex-direction: column;
      gap: 6px;
      max-width: 288px;
    }
    .real-flex-bubble {
      background: var(--surface);
      border-radius: 14px;
      padding: 16px;
      width: 280px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.12);
      border: 1px solid rgba(0,0,0,0.04);
      display: flex;
      flex-direction: column;
      box-sizing: border-box;
      text-align: left;
    }
    .flex-top-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .flex-status-pill {
      background: var(--brand-soft);
      color: var(--action-strong);
      font-size: 11px;
      font-weight: 700;
      border-radius: 20px;
      padding: 4px 10px;
      line-height: 1.2;
    }
    .flex-book-name {
      font-size: 11px;
      color: var(--ink-3);
      font-weight: 500;
    }
    .flex-category-wrap {
      display: flex;
      justify-content: center;
      margin-top: 14px;
    }
    .flex-category-pill {
      background: var(--base);
      border-radius: 8px;
      padding: 5px 12px;
      font-size: 14px;
      font-weight: 700;
      color: var(--ink);
      border: 1px solid var(--line);
      line-height: 1.35;
    }
    .flex-amount-row {
      display: flex;
      justify-content: center;
      align-items: baseline;
      gap: 4px;
      margin-top: 10px;
      line-height: 1;
    }
    .flex-curr {
      font-size: 19px;
      font-weight: 700;
      color: var(--ink-3);
    }
    .flex-amount-val {
      font-size: 34px;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: -0.02em;
    }
    .flex-foreign-convert {
      font-size: 13px;
      color: var(--warn);
      text-align: center;
      margin-top: 4px;
      font-weight: 600;
    }
    .flex-note-text {
      font-size: 14px;
      color: var(--ink);
      text-align: center;
      margin-top: 8px;
      word-break: break-all;
    }
    .flex-card-divider {
      border: none;
      border-top: 1px solid var(--line);
      margin: 14px 0;
    }
    .flex-split-box {
      background: var(--brand-soft);
      border-radius: 10px;
      padding: 12px;
      margin-bottom: 14px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .split-line {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 8px;
      font-size: 13px;
    }
    .split-k {
      color: var(--ink-3);
      font-size: 12px;
      flex-shrink: 0;
    }
    .split-v {
      font-size: 13.5px;
      font-weight: 700;
      color: var(--ink);
      text-align: right;
    }
    .flex-meta-row {
      display: flex;
      align-items: stretch;
      gap: 12px;
      margin-bottom: 12px;
    }
    .flex-meta-col {
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .flex-meta-divider {
      width: 1px;
      background: var(--line);
      flex-shrink: 0;
    }
    .flex-meta-label {
      font-size: 11px;
      color: var(--ink-3);
      line-height: 1.2;
    }
    .flex-meta-val {
      font-size: 13.5px;
      font-weight: 700;
      color: var(--ink);
      margin-top: 3px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .flex-balance-line {
      font-size: 11px;
      color: var(--ink-3);
      text-align: center;
      margin-bottom: 12px;
    }
    .flex-budget-section {
      display: flex;
      flex-direction: column;
      gap: 4px;
      margin-bottom: 12px;
    }
    .flex-budget-header {
      display: flex;
      justify-content: space-between;
      font-size: 11px;
      color: var(--ink-3);
    }
    .flex-budget-pct {
      font-weight: 700;
      color: var(--ink-3);
    }
    .flex-budget-track {
      height: 6px;
      background: var(--line);
      border-radius: 3px;
      overflow: hidden;
    }
    .flex-budget-fill {
      height: 100%;
      background: var(--brand);
      border-radius: 3px;
      transition: width var(--dur-slow) var(--ease-standard);
    }
    .flex-actions-row {
      display: flex;
      gap: 8px;
      margin-top: 2px;
    }
    .btn-flex-action {
      padding: 9px 0;
      font-size: 13.5px;
      font-weight: 700;
      border-radius: 8px;
      text-align: center;
      cursor: pointer;
      font-family: inherit;
      border: none;
      transition: opacity var(--dur-fast) var(--ease-standard);
    }
    .btn-flex-action:hover { opacity: 0.9; }
    .btn-flex-primary {
      background: var(--action);
      color: var(--surface);
    }
    .btn-flex-secondary {
      background: var(--brand-soft);
      border: 1px solid var(--action-strong);
      color: var(--action-strong);
    }
    .btn-flex-danger {
      background: var(--brand-soft);
      border: 1px solid var(--expense);
      color: var(--expense);
    }
    /* 仿 LINE Quick Reply 快捷列 */
    .sim-quick-reply {
      display: flex;
      align-items: center;
      gap: 6px;
      overflow-x: auto;
      padding: 4px 0 2px;
      scrollbar-width: none;
    }
    .sim-quick-reply::-webkit-scrollbar { display: none; }
    .qr-pill {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 4px 10px;
      font-size: 12px;
      font-weight: 600;
      color: var(--action-strong);
      white-space: nowrap;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      box-shadow: 0 1px 3px rgba(0,0,0,0.06);
      transition: all var(--dur-fast) var(--ease-standard);
    }
    .qr-pill:hover {
      border-color: var(--action);
      background: var(--brand-soft);
    }

    /* 模擬輸入列 */
    .line-chat-inputbar {
      background: var(--surface);
      padding: 10px 12px;
      display: flex;
      align-items: center;
      gap: 8px;
      border-top: 1px solid var(--line);
    }
    .inputbar-plus {
      color: var(--ink-3);
      font-size: 20px;
      cursor: pointer;
    }
    .chat-text-input {
      flex: 1;
      border: 1px solid var(--line);
      background: var(--base);
      border-radius: 20px;
      padding: 8px 14px;
      font-size: 13px;
      font-family: inherit;
      outline: none;
      color: var(--ink);
    }
    .chat-text-input:focus {
      border-color: var(--action);
      background: var(--surface);
    }
    .btn-send-sim {
      background: var(--action);
      color: var(--surface);
      border: none;
      border-radius: 50%;
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 13px;
      transition: transform var(--dur-fast) var(--ease-standard);
    }
    .btn-send-sim:hover {
      transform: scale(1.08);
    }

    /* 三大場景 (Scenarios) */
    section.scenarios-section {
      padding: 80px 0;
      background: var(--surface);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }
    .section-header {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 52px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12.5px;
      font-weight: 800;
      color: var(--action);
      background: var(--brand-soft);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 12px;
    }
    h2.section-title {
      font-size: 34px;
      font-weight: 900;
      color: var(--ink);
      line-height: 1.25;
      margin-bottom: 14px;
    }
    p.section-sub {
      font-size: 16px;
      color: var(--ink-2);
      line-height: 1.65;
    }
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-card {
      background: var(--base);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 32px 26px;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      position: relative;
      transition: all var(--dur-base) var(--ease-out);
    }
    .scenario-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--brand);
    }
    .scenario-card-mascot {
      width: 72px;
      height: 72px;
      object-fit: contain;
      margin-bottom: 20px;
    }
    .scenario-title {
      font-size: 21px;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--ink);
    }
    .scenario-desc {
      font-size: 14.5px;
      color: var(--ink-2);
      line-height: 1.65;
      margin-bottom: 20px;
      flex: 1;
    }
    .scenario-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      width: 100%;
      border-top: 1px dashed var(--line);
      padding-top: 18px;
    }
    .scenario-feature-list li {
      font-size: 13.5px;
      font-weight: 600;
      color: var(--ink-3);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .scenario-feature-list li::before {
      content: "✓";
      color: var(--action);
      font-weight: 900;
    }

    /* 六大特色 (Features) */
    section.features-section {
      padding: 88px 0;
      background: var(--base);
    }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-box {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: all var(--dur-base) var(--ease-standard);
    }
    .feature-box:hover {
      border-color: var(--brand);
      box-shadow: var(--shadow-sm);
    }
    .feature-icon-badge {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      background: var(--brand-soft);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 16px;
    }
    .feature-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--ink);
      margin-bottom: 8px;
    }
    .feature-text {
      font-size: 14px;
      color: var(--ink-2);
      line-height: 1.6;
    }

    /* 方案與價格 (Pricing) */
    section.pricing-section {
      padding: 92px 0;
      background: var(--surface);
      border-top: 1px solid var(--line);
    }
    .pricing-notice-box {
      background: var(--brand-soft);
      border: 1px solid var(--brand);
      border-radius: var(--radius-md);
      padding: 14px 20px;
      max-width: 680px;
      margin: 0 auto 36px;
      text-align: center;
      font-size: 14px;
      font-weight: 700;
      color: var(--action-strong);
    }
    .plans-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      align-items: stretch;
    }
    .plan-card {
      background: var(--base);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 34px 26px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all var(--dur-base) var(--ease-standard);
    }
    .plan-card.featured {
      background: var(--surface);
      border: 2px solid var(--action);
      box-shadow: var(--shadow-md);
      transform: scale(1.03);
      z-index: 2;
    }
    .featured-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--action);
      color: var(--surface);
      font-size: 12px;
      font-weight: 800;
      padding: 4px 14px;
      border-radius: var(--radius-full);
      box-shadow: 0 2px 8px rgba(var(--shadow-color), 0.35);
    }
    .plan-name {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 6px;
    }
    .plan-desc {
      font-size: 13.5px;
      color: var(--ink-3);
      min-height: 40px;
      margin-bottom: 16px;
    }
    .plan-price-wrap {
      margin-bottom: 24px;
      display: flex;
      align-items: baseline;
      gap: 4px;
    }
    .plan-price {
      font-size: 38px;
      font-weight: 900;
      color: var(--action-strong);
      letter-spacing: -0.03em;
    }
    .plan-period {
      font-size: 14px;
      font-weight: 600;
      color: var(--ink-3);
    }
    .plan-btn {
      display: block;
      width: 100%;
      text-align: center;
      padding: 13px 20px;
      border-radius: var(--radius-full);
      font-size: 15px;
      font-weight: 800;
      text-decoration: none;
      margin-bottom: 26px;
      transition: all var(--dur-base) var(--ease-standard);
      cursor: pointer;
      font-family: inherit;
    }
    .plan-btn-free {
      background: var(--brand-soft);
      color: var(--action-strong);
      border: 1px solid transparent;
    }
    .plan-btn-free:hover {
      background: var(--brand);
    }
    .plan-btn-pro {
      background: var(--action);
      color: var(--surface);
      border: none;
      box-shadow: 0 4px 14px rgba(var(--shadow-color), 0.28);
    }
    .plan-btn-pro:hover {
      background: var(--action-strong);
      box-shadow: 0 6px 18px rgba(var(--shadow-color), 0.38);
    }
    .plan-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13.5px;
      color: var(--ink-2);
      border-top: 1px solid var(--line);
      padding-top: 20px;
      flex: 1;
    }
    .plan-features li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      line-height: 1.5;
    }
    .check-icon {
      color: var(--action);
      font-weight: 900;
      flex-shrink: 0;
    }

    /* 購買與開通步驟 (4 Steps) */
    section.steps-section {
      padding: 80px 0;
      background: var(--base);
    }
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .step-item {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .step-number {
      font-size: 32px;
      font-weight: 900;
      color: var(--brand);
      line-height: 1;
      margin-bottom: 12px;
    }
    .step-title {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--ink);
    }
    .step-desc {
      font-size: 13.5px;
      color: var(--ink-2);
      line-height: 1.6;
    }

    /* 常見問答 (FAQ) */
    section.faq-section {
      padding: 88px 0;
      background: var(--surface);
      border-top: 1px solid var(--line);
    }
    .faq-accordion {
      max-width: 760px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--base);
      overflow: hidden;
      transition: all var(--dur-base) var(--ease-standard);
    }
    .faq-item.active {
      border-color: var(--brand);
      background: var(--surface);
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 800;
      color: var(--ink);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .faq-toggle-icon {
      font-size: 18px;
      color: var(--action);
      transition: transform var(--dur-base) var(--ease-standard);
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      font-size: 14.5px;
      color: var(--ink-2);
      line-height: 1.7;
      border-top: 1px solid var(--line);
      margin-top: 2px;
      padding-top: 14px;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 頁尾法律與合規資訊 (綠界 ECPay 審查標準) */
    footer.site-footer {
      background: var(--ink);
      color: var(--line);
      padding: 64px 0 40px;
      font-size: 13.5px;
      line-height: 1.8;
    }
    /* 頁尾是固定深色底；深色色票下 ink／surface 會互換（不論是跟隨系統還是手動選深色），這裡一律把頁尾範圍內的 token 釘回淺色版色值 */
    footer.site-footer { --ink: #2B0F02; --surface: #FFFFFF; --line: #EBE4D9; }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 40px;
    }
    .footer-brand h4 {
      color: var(--surface);
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand p {
      max-width: 380px;
      color: var(--line);
    }
    .footer-col h5 {
      color: var(--surface);
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-col a {
      color: var(--line);
      text-decoration: none;
      transition: color var(--dur-fast) var(--ease-standard);
    }
    .footer-col a:hover {
      color: var(--brand);
    }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      color: var(--line);
      font-size: 12.5px;
    }
    .footer-payment-note {
      margin-top: 8px;
      font-size: 12px;
      color: var(--line);
    }

    /* LINE QR Code Modal 彈窗 (桌機體驗) */
    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: var(--scrim);
      backdrop-filter: blur(6px);
      z-index: 1000;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 20px;
      animation: fadeIn var(--dur-base) var(--ease-out);
    }
    .modal-overlay.open {
      display: flex;
    }
    .modal-card {
      background: var(--surface);
      border-radius: var(--radius-lg);
      padding: 36px 32px;
      max-width: 380px;
      width: 100%;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-lg);
      animation: modalSlideUp var(--dur-base) var(--ease-out);
    }
    .modal-close-btn {
      position: absolute;
      top: 16px;
      right: 16px;
      background: none;
      border: none;
      font-size: 22px;
      color: var(--ink-3);
      cursor: pointer;
      line-height: 1;
    }
    .modal-qr-img {
      width: 200px;
      height: 200px;
      margin: 16px auto;
      display: block;
      border-radius: 12px;
      border: 1px solid var(--line);
      padding: 8px;
      background: var(--surface);
    }
    .modal-id-pill {
      display: inline-block;
      background: var(--brand-soft);
      border: 1px solid var(--brand);
      color: var(--action-strong);
      font-weight: 800;
      font-size: 14px;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      margin-top: 10px;
      user-select: all;
    }

    /* 響應式 RWD 適配 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 40px;
      }
      .scenarios-grid, .features-grid, .plans-grid, .steps-grid {
        grid-template-columns: 1fr;
      }
      .plan-card.featured {
        transform: none;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      h1.hero-title {
        font-size: 36px;
      }
      .chat-demo-card {
        max-width: 440px;
        margin: 0 auto;
        height: 640px;
      }
    }
    @media (max-width: 600px) {
      nav.nav-links { display: none; }
      .header-inner { height: 64px; }
      h1.hero-title { font-size: 30px; }
      p.hero-desc { font-size: 16px; }
      .hero-cta-group { width: 100%; flex-direction: column; }
      .btn-line-primary, .btn-secondary { width: 100%; }
      .chat-demo-card { height: 580px; border-width: 4px; border-radius: 20px; }
    }

/* ==========================================================================
   官網升級層（原本的元件樣式在上面，這裡只做覆蓋與新增）
   規則同 motion.css：新動畫只動 opacity／transform；懸浮位移用獨立的
   translate／scale 屬性，才不會跟進場動畫的 transform 打架；顏色只用 token。
   ========================================================================== */

:root {
  --section-y: clamp(64px, 9vw, 112px);
  --glow-op: 0.5;
  --hl-bg: var(--brand);   /* 標題螢光筆：淺色用薄荷底；深色底上改成半透明主色，字才讀得到 */
  --hl-op: 1;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme]) { --glow-op: 0.16; --hl-bg: var(--action); --hl-op: 0.4; } }
:root[data-theme="dark"] { --glow-op: 0.16; --hl-bg: var(--action); --hl-op: 0.4; }

html { scroll-padding-top: 88px; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
:focus-visible { outline: 3px solid var(--action); outline-offset: 3px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -64px; z-index: 300;
  background: var(--action); color: var(--surface);
  padding: 10px 16px; border-radius: var(--radius-sm); font-weight: 700; text-decoration: none;
}
.skip-link:focus { top: 12px; }

/* 進場：沒有 JS 時一律可見；動畫用 backwards，結束後交還給元件自己的 transform／hover */
.js .reveal:not(.in) { opacity: 0; }
.js .reveal.in { animation: revealUp var(--dur-enter) var(--ease-out) backwards; animation-delay: calc(var(--i, 0) * var(--stagger-step)); }
@keyframes revealUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }

/* 捲動進度條 */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 200;
  background: linear-gradient(90deg, var(--brand), var(--action));
  transform: scaleX(0); transform-origin: 0 50%; pointer-events: none;
}

/* 導覽列 */
.site-header::after {
  content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 22px; pointer-events: none;
  background: linear-gradient(rgba(var(--shadow-color), 0.08), transparent);
  opacity: 0; transition: opacity var(--dur-base) var(--ease-standard);
}
.site-header.is-scrolled::after { opacity: 1; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.scheme-btn {
  display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px;
  border-radius: var(--radius-full); background: var(--surface); border: 1px solid var(--line);
  color: var(--ink); cursor: pointer;
}
.scheme-btn:hover { border-color: var(--action); color: var(--action); }
.scheme-btn .icon-sun { display: none; }
:root[data-theme="dark"] .scheme-btn .icon-sun { display: block; }
:root[data-theme="dark"] .scheme-btn .icon-moon { display: none; }
nav.nav-links a { position: relative; padding: 6px 0; }
nav.nav-links a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; border-radius: 2px;
  background: var(--action); transform: scaleX(0); transform-origin: 0 50%;
  transition: transform var(--dur-base) var(--ease-out);
}
nav.nav-links a:hover::after, nav.nav-links a.current::after { transform: scaleX(1); }
nav.nav-links a.current { color: var(--action); }
.menu-btn {
  display: none; position: relative; width: 44px; height: 44px; border-radius: var(--radius-full);
  background: var(--surface); border: 1px solid var(--line); cursor: pointer;
}
.menu-bar {
  position: absolute; left: 13px; right: 13px; height: 2px; border-radius: 2px; background: var(--ink);
  transition: transform var(--dur-base) var(--ease-out);
}
.menu-bar:nth-child(1) { top: 17px; }
.menu-bar:nth-child(2) { top: 25px; }
.menu-open .menu-bar:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.menu-open .menu-bar:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
.mobile-menu {
  display: none; position: absolute; left: 0; right: 0; top: 100%;
  background: var(--base); border-bottom: 1px solid var(--line); padding: 4px 24px 16px;
  opacity: 0; transform: translateY(-8px); visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility 0s linear var(--dur-base);
}
.mobile-menu a { display: block; padding: 14px 0; border-top: 1px solid var(--line); color: var(--ink); font-weight: 700; font-size: 17px; text-decoration: none; }
.mobile-menu a:first-child { border-top: 0; }
.menu-open .mobile-menu { opacity: 1; transform: none; visibility: visible; transition-delay: 0s; }

/* Hero */
section.hero-section { padding: clamp(40px, 6vw, 88px) 0 clamp(56px, 7vw, 96px); overflow: hidden; }
section.hero-section::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(var(--line) 1.2px, transparent 1.3px); background-size: 28px 28px;
  -webkit-mask-image: linear-gradient(black, transparent 85%); mask-image: linear-gradient(black, transparent 85%);
}
.hero-aurora { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.hero-aurora i {
  position: absolute; width: min(640px, 70vw); aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, var(--brand) 0%, transparent 68%); opacity: 0.55;
  animation: drift 16s ease-in-out infinite alternate;
}
.hero-aurora i:nth-child(1) { right: -8%; top: -18%; }
.hero-aurora i:nth-child(2) { left: -14%; bottom: -30%; background: radial-gradient(circle, var(--info-soft) 0%, transparent 68%); animation-duration: 21s; animation-direction: alternate-reverse; }
@keyframes drift { from { transform: translate3d(0, 0, 0) scale(1); } to { transform: translate3d(-40px, 36px, 0) scale(1.12); } }
section.hero-section > .container { position: relative; z-index: 1; }

.badge-dot { position: relative; box-shadow: none; }
.badge-dot::after { content: ''; position: absolute; inset: 0; border-radius: 50%; background: var(--action); animation: ping 2s var(--ease-out) infinite; }
@keyframes ping { from { transform: scale(1); opacity: 0.55; } to { transform: scale(2.8); opacity: 0; } }

h1.hero-title { font-size: clamp(32px, 5.4vw, 64px); line-height: 1.16; letter-spacing: -0.035em; word-break: keep-all; margin-bottom: 24px; }
.hero-title .line { display: block; overflow: hidden; padding: 0.06em 0.12em 0.14em; margin: -0.06em -0.12em -0.14em; }
.js .hero-title .inner { display: inline-block; animation: lineUp 0.95s var(--ease-out) backwards; }
.js .hero-title .line:nth-child(2) .inner { animation-delay: 0.12s; }
@keyframes lineUp { from { transform: translateY(112%); } to { transform: none; } }
.hl { background: none; color: inherit; position: relative; white-space: nowrap; margin-left: 0.2em; }
.hl::after {
  content: ''; position: absolute; left: -0.08em; right: -0.08em; bottom: 0.06em; height: 0.36em; z-index: -1;
  background: var(--hl-bg); opacity: var(--hl-op); border-radius: 0.2em; transform-origin: 0 50%;
  animation: markIn 0.9s 0.75s var(--ease-out) backwards;
}
@keyframes markIn { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.hero-title { isolation: isolate; }
p.hero-desc { font-size: clamp(16px, 1.5vw, 19px); }
.btn-line-primary, .btn-secondary, .header-cta-btn { transition: transform var(--dur-base) var(--ease-out), background-color var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard); }
.btn-line-primary:active, .btn-secondary:active, .header-cta-btn:active { transform: scale(0.97); }
ul.hero-proof { list-style: none; }
.proof-item { white-space: nowrap; }

/* 對話展示器：傾斜、貼紙、浮動標籤 */
.chat-demo-wrapper { --rx: 0deg; --ry: 0deg; transform: perspective(1400px) rotateX(var(--rx)) rotateY(var(--ry)); transition: transform var(--dur-slow) var(--ease-out); }
.demo-mascot { position: absolute; z-index: 3; right: -30px; top: -52px; width: 104px; height: auto; pointer-events: none; animation: bob 4.5s ease-in-out infinite; filter: drop-shadow(0 6px 10px rgba(var(--shadow-color), 0.2)); }
@keyframes bob { 0%, 100% { transform: translateY(0) rotate(-3deg); } 50% { transform: translateY(-9px) rotate(3deg); } }
.demo-float {
  position: absolute; z-index: 3; display: none; flex-direction: column; gap: 2px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md);
  box-shadow: var(--shadow-md); padding: 10px 16px; font-weight: 800; font-size: 20px; color: var(--action-strong); line-height: 1.1;
  animation: bob 6s ease-in-out infinite;
}
.demo-float b { font-size: 11.5px; color: var(--ink-3); font-weight: 700; letter-spacing: 0.04em; }
.demo-float-a { left: -64px; top: 30%; }
.demo-float-b { right: -48px; bottom: 22%; animation-delay: -2.4s; }
@media (min-width: 1180px) { .demo-float { display: flex; } }
.tab-btn { position: relative; overflow: hidden; }
.tab-btn.timing::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--brand);
  transform-origin: 0 50%; animation: tabTimer 4.8s linear both;
}
@keyframes tabTimer { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.pop { animation: popIn var(--dur-slow) var(--ease-out) backwards; }
@keyframes popIn { from { opacity: 0; transform: translateY(10px) scale(0.96); } to { opacity: 1; transform: none; } }
.typing-dots { display: inline-flex; gap: 5px; align-items: center; background: var(--surface); padding: 13px 15px; border-radius: 16px 16px 16px 2px; box-shadow: var(--shadow-sm); }
.typing-dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--ink-3); animation: dotBounce 1s ease-in-out infinite; }
.typing-dots i:nth-child(2) { animation-delay: 0.15s; }
.typing-dots i:nth-child(3) { animation-delay: 0.3s; }
@keyframes dotBounce { 0%, 60%, 100% { transform: translateY(0); opacity: 0.5; } 30% { transform: translateY(-5px); opacity: 1; } }
.flex-budget-fill { width: 100%; transform-origin: 0 50%; transform: scaleX(var(--pct, 0)); transition: none; animation: fillIn 0.9s 0.3s var(--ease-out) backwards; }
@keyframes fillIn { from { transform: scaleX(0); } }

/* 一句話跑馬燈 */
.cmd-marquee {
  overflow: hidden; padding: 18px 0; background: var(--surface); border-block: 1px solid var(--line);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 7%, black 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 7%, black 93%, transparent);
}
.cmd-track { display: flex; width: max-content; animation: marquee 42s linear infinite; }
.cmd-marquee:hover .cmd-track { animation-play-state: paused; }
.cmd-list { display: flex; gap: 14px; padding-right: 14px; list-style: none; }
.cmd-list li {
  white-space: nowrap; font-weight: 700; font-size: 15px; color: var(--ink-2);
  padding: 8px 18px; border-radius: var(--radius-full); border: 1px solid var(--line); background: var(--base);
}
.cmd-list li::before { content: '›'; color: var(--action); font-weight: 900; margin-right: 8px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* 數字亮點 */
.stats-section { padding: clamp(40px, 6vw, 72px) 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { display: flex; flex-direction: column-reverse; gap: 10px; border-left: 2px solid var(--brand); padding-left: 20px; }
.stat dt { font-size: 14px; font-weight: 700; color: var(--ink-3); }
.stat dd { font-size: clamp(40px, 5.6vw, 68px); font-weight: 900; line-height: 1; letter-spacing: -0.04em; color: var(--action-strong); font-variant-numeric: tabular-nums; }
.stat dd small { font-size: 16px; font-weight: 700; letter-spacing: 0; margin-left: 6px; color: var(--ink-2); }

/* 區塊節奏與標題 */
section.scenarios-section, section.features-section, section.pricing-section, section.steps-section, section.faq-section { padding: var(--section-y) 0; }
.section-header { margin-bottom: clamp(36px, 5vw, 60px); }
h2.section-title { font-size: clamp(28px, 4.4vw, 46px); letter-spacing: -0.03em; word-break: keep-all; }
p.section-sub { font-size: clamp(15px, 1.4vw, 17px); }

/* 場景卡 */
.spot { isolation: isolate; overflow: hidden; --mx: 50%; --my: 0%; }
.spot::before {
  content: ''; position: absolute; left: -180px; top: -180px; width: 360px; height: 360px; z-index: -1; pointer-events: none;
  background: radial-gradient(closest-side, var(--brand), transparent); opacity: 0; transform: translate(var(--mx), var(--my));
  transition: opacity var(--dur-slow) var(--ease-standard);
}
@media (hover: hover) and (pointer: fine) { .spot:hover::before { opacity: var(--glow-op); } }
.scenario-card { transition: translate var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-standard); }
.scenario-card:hover { transform: none; translate: 0 -6px; border-color: var(--brand); box-shadow: none; }
.scenario-no { position: absolute; top: 22px; right: 26px; font-size: 46px; line-height: 1; font-weight: 900; letter-spacing: -0.05em; color: var(--line); }
.scenario-card-mascot { transition: transform var(--dur-slow) var(--ease-out); }
.scenario-card:hover .scenario-card-mascot { transform: translateY(-5px) rotate(-5deg) scale(1.06); }

/* Bento 功能版面 */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.bento-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px;
  display: flex; flex-direction: column; gap: 12px; position: relative;
  transition: translate var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-standard);
}
.bento-card:hover { translate: 0 -4px; border-color: var(--brand); }
.b-wide { grid-column: span 3; flex-direction: row; align-items: stretch; gap: 24px; }
.b-third { grid-column: span 2; }
.b-full { grid-column: span 6; flex-direction: row; align-items: center; flex-wrap: wrap; gap: 20px; }
.bento-text { flex: 1 1 0; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.bento-text .feature-title, .bento-text .feature-text { margin: 0; }
.bento-card .feature-title { margin-bottom: 0; }
.feature-icon-badge { width: 46px; height: 46px; border-radius: 14px; display: inline-grid; place-items: center; background: var(--brand-soft); color: var(--action); font-size: 0; flex: none; margin-bottom: 4px; }
.bento-visual { flex: 1 1 0; min-width: 0; margin-top: auto; }
.b-wide .bento-visual { align-self: center; }

.calc-visual { background: var(--base); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.calc-input { display: flex; align-items: center; font-weight: 800; font-size: 18px; color: var(--ink); }
.calc-typed { position: relative; white-space: nowrap; }
.calc-typed::after { content: ''; position: absolute; inset: 0; background: var(--base); transform-origin: 100% 50%; animation: curtain 6s infinite; }
@keyframes curtain { 0% { transform: scaleX(1); animation-timing-function: steps(13, end); } 38% { transform: scaleX(0); } 92% { transform: scaleX(0); animation-timing-function: step-end; } 100% { transform: scaleX(1); } }
.calc-caret { width: 2px; height: 1.2em; margin-left: 3px; background: var(--action); animation: blink 1s steps(2, start) infinite; }
@keyframes blink { to { opacity: 0; } }
.calc-result { display: flex; align-items: baseline; justify-content: space-between; border-top: 1px dashed var(--line); padding-top: 12px; animation: resultIn 6s infinite; }
.calc-result small { font-size: 12px; font-weight: 700; color: var(--ink-3); }
.calc-result b { font-size: 28px; font-weight: 900; color: var(--action-strong); letter-spacing: -0.02em; }
@keyframes resultIn { 0%, 36% { opacity: 0; transform: translateY(6px); } 44%, 92% { opacity: 1; transform: none; } 100% { opacity: 0; transform: translateY(6px); } }

.fx-visual { display: flex; flex-wrap: wrap; align-content: center; gap: 10px; }
.fx-chip { padding: 8px 14px; border-radius: var(--radius-full); background: var(--base); border: 1px solid var(--line); font-weight: 800; font-size: 13.5px; color: var(--ink-2); }
.fx-main { flex-basis: 100%; text-align: center; background: var(--brand-soft); border-color: var(--brand); color: var(--action-strong); font-size: 17px; padding: 14px; border-radius: var(--radius-md); }
.fx-main b { color: var(--action); margin-right: 4px; }
.fx-main i { font-style: normal; margin: 0 6px; color: var(--ink-3); }

.receipt-visual { position: relative; overflow: hidden; height: 104px; background: var(--base); border: 1px dashed var(--line); border-radius: var(--radius-md); padding: 16px; display: grid; align-content: space-between; }
.rc-line { height: 8px; border-radius: 4px; background: var(--line); }
.rc-line.short { width: 58%; }
.rc-scan { position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--action); opacity: 0.75; animation: scan 3.2s ease-in-out infinite alternate; }
@keyframes scan { from { transform: translateY(0); } to { transform: translateY(101px); } }

.bars-visual { display: flex; align-items: flex-end; gap: 8px; height: 96px; }
.bars-visual i { flex: 1; height: var(--h); background: var(--c); border-radius: 6px 6px 2px 2px; transform-origin: 50% 100%; }
.js .bars-visual i { transform: scaleY(0); }
.js .in .bars-visual i { animation: barUp 0.9s var(--ease-out) forwards; }
.js .in .bars-visual i:nth-child(2) { animation-delay: 0.08s; }
.js .in .bars-visual i:nth-child(3) { animation-delay: 0.16s; }
.js .in .bars-visual i:nth-child(4) { animation-delay: 0.24s; }
.js .in .bars-visual i:nth-child(5) { animation-delay: 0.32s; }
.js .in .bars-visual i:nth-child(6) { animation-delay: 0.4s; }
@keyframes barUp { to { transform: scaleY(1); } }

.undo-visual { display: flex; flex-direction: column; gap: 10px; }
.undo-bubble { align-self: flex-end; background: var(--brand); color: var(--on-brand); padding: 9px 14px; border-radius: 16px 16px 2px 16px; font-weight: 700; font-size: 13.5px; }
.undo-done { align-self: flex-start; background: var(--income-soft); color: var(--income); padding: 9px 14px; border-radius: 16px 16px 16px 2px; font-weight: 800; font-size: 13.5px; }

.trust-chips { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; margin-left: auto; }
.trust-chips li { padding: 8px 16px; border-radius: var(--radius-full); background: var(--brand-soft); color: var(--action-strong); font-weight: 800; font-size: 13.5px; }
.b-full .bento-text { flex-basis: 320px; }

/* 方案卡 */
.plan-card { transition: translate var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-standard); }
.plan-card:hover { translate: 0 -5px; }
.plan-card.featured { transform: none; scale: 1.03; }
.plan-btn, .btn-flex-action, .qr-pill, .tab-btn { transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard), color var(--dur-base) var(--ease-standard), opacity var(--dur-base) var(--ease-standard); }
.plan-btn:active, .btn-flex-action:active, .qr-pill:active { transform: scale(0.97); }

/* 開通流程 */
.step-item { transition: translate var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-standard); }
.step-item:hover { translate: 0 -4px; border-color: var(--brand); }
.step-number { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; background: var(--brand); color: var(--on-brand); font-size: 19px; letter-spacing: 0; margin-bottom: 16px; }

/* FAQ（按鈕版） */
.faq-heading { font-size: inherit; margin: 0; }
.faq-question { width: 100%; background: none; border: 0; text-align: left; font-family: inherit; line-height: inherit; }
.faq-question span:first-child { padding-right: 16px; }
.faq-question:hover { color: var(--action-strong); }
.faq-toggle-icon { transition: transform var(--dur-base) var(--ease-out); flex: none; }
.faq-item.active .faq-answer { animation: fadeIn var(--dur-base) var(--ease-out); }

/* 收尾行動呼籲 */
.final-cta { padding: 0 0 var(--section-y); }
.cta-panel {
  position: relative; overflow: hidden; isolation: isolate; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: var(--brand); color: var(--on-brand); border-radius: clamp(24px, 3vw, 36px); padding: clamp(32px, 6vw, 72px);
}
.cta-panel::before, .cta-panel::after { content: ''; position: absolute; z-index: -1; border-radius: 50%; background: var(--on-tier); opacity: 0.28; pointer-events: none; }
.cta-panel::before { width: 360px; height: 360px; right: -80px; top: -140px; }
.cta-panel::after { width: 220px; height: 220px; left: 38%; bottom: -120px; opacity: 0.2; }
.cta-copy { max-width: 560px; }
.cta-copy h2 { font-size: clamp(28px, 4.4vw, 50px); font-weight: 900; line-height: 1.18; letter-spacing: -0.03em; word-break: keep-all; margin-bottom: 14px; }
.cta-copy p { font-size: clamp(15px, 1.5vw, 18px); font-weight: 600; margin-bottom: 28px; opacity: 0.85; }
.btn-cta-inverse {
  display: inline-flex; align-items: center; gap: 10px; background: var(--on-brand); color: var(--brand); border: 0; cursor: pointer;
  font: inherit; font-size: 17px; font-weight: 800; padding: 15px 28px; border-radius: var(--radius-full);
  transition: transform var(--dur-base) var(--ease-out);
}
.btn-cta-inverse:hover { transform: translateY(-2px); }
.btn-cta-inverse:active { transform: scale(0.97); }
.cta-mascot { width: clamp(120px, 20vw, 210px); height: auto; flex: none; animation: bob 5s ease-in-out infinite; filter: drop-shadow(0 10px 16px rgba(var(--shadow-color), 0.22)); }

/* 響應式 */
@media (max-width: 992px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 20px; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .b-wide, .b-full { grid-column: span 2; }
  .b-third { grid-column: span 1; }
  .bento-card.b-third:nth-of-type(5) { grid-column: span 2; }
  .plan-card.featured { scale: 1; }
  .demo-mascot { right: -10px; }
}
@media (max-width: 860px) {
  nav.nav-links { display: none; }
  .menu-btn { display: inline-block; }
  .mobile-menu { display: block; }
}
@media (max-width: 700px) {
  .bento { grid-template-columns: 1fr; }
  .b-wide, .b-full, .b-third, .bento-card.b-third:nth-of-type(5) { grid-column: span 1; }
  .b-wide { flex-direction: column; }
  .b-full { flex-direction: column; align-items: flex-start; }
  .trust-chips { margin-left: 0; }
  .cta-panel { flex-direction: column; align-items: flex-start; }
  .cta-mascot { align-self: flex-end; margin-top: -8px; }
  .demo-mascot { width: 76px; right: 4px; top: -46px; }
  .proof-item { white-space: normal; }
}
@media (max-width: 480px) {
  .logo-text { font-size: 18px; }
  .logo-group { gap: 8px; }
  .header-actions { gap: 8px; }
  .header-cta-btn { padding: 9px 13px; font-size: 13px; }
  .header-cta-btn svg { display: none; }
  .btn-cta-inverse { width: 100%; justify-content: center; }
}

/* 減少動態：跑馬燈改成可橫向捲動的靜態列；其餘動畫由 motion.css 壓成瞬間完成 */
@media (prefers-reduced-motion: reduce) {
  .cmd-marquee { overflow-x: auto; -webkit-mask-image: none; mask-image: none; }
  .cmd-track { animation: none !important; }
  .cmd-list + .cmd-list { display: none; }
  .hero-aurora i, .demo-mascot, .demo-float, .cta-mascot { animation: none !important; }
  .calc-typed::after { animation: none !important; transform: scaleX(0); }
  .calc-result { animation: none !important; }
}

/* 第二輪調整（截圖檢查後） */
.nb { white-space: nowrap; }
.hero-grid { grid-template-columns: minmax(0, 1.14fr) minmax(0, 0.86fr); gap: clamp(32px, 4vw, 56px); }
h1.hero-title { font-size: clamp(32px, 3.5vw, 50px); }
.tab-btn { flex: none; }
.demo-float-a { top: 17%; }
.b-wide { flex-direction: column; gap: 12px; }
.b-wide .bento-visual { align-self: stretch; margin-top: 8px; }
.plan-price-wrap { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.plan-price { font-size: clamp(30px, 3.2vw, 38px); white-space: nowrap; }
.final-cta { padding: var(--section-y) 0; }
.bento-visual { flex: 0 0 auto; }
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
}
.bot-bubble-wrapper { min-width: 0; flex: 1 1 auto; max-width: 288px; }
.real-flex-bubble { width: 100%; max-width: 280px; }
.bot-avatar-small { flex: none; }
@media (max-width: 700px) { .b-full .bento-text { flex-basis: auto; } }

.df-in { display: flex; flex-direction: column; gap: 2px; }