/* roulang page: index */
/* tokens */
    :root {
      --pine: #1F7A63;
      --pine-deep: #165E4C;
      --pine-soft: #DCEBE5;
      --ink: #24302C;
      --amber: #C4843A;
      --amber-soft: #F4E6D2;
      --paper: #F6F3EC;
      --mist: #E7EEE9;
      --card: #FFFDF8;
      --ink-dark: #14201C;
      --cream: #F3EEE4;
      --line: #D6D0C4;
      --text: #2A3330;
      --muted: #5C675F;
      --white: #FFFEFB;
      --shadow: 0 8px 24px rgba(36, 48, 44, .06);
      --shadow-hover: 0 14px 28px rgba(36, 48, 44, .10);
      --radius: 10px;
      --radius-sm: 8px;
      --container: 1220px;
      --nav-h: 72px;
      --float-h: 68px;
      --ease: .22s ease;
    }

    /* reset */
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16.5px;
      line-height: 1.82;
      color: var(--text);
      background: var(--paper);
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--pine); text-decoration: none; }
    a:hover { color: var(--pine-deep); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4, p { margin: 0; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    :focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

    /* layout */
    .container {
      width: min(100% - 48px, var(--container));
      margin: 0 auto;
    }
    main { display: block; }
    .section {
      padding: 88px 0;
      scroll-margin-top: 86px;
    }
    .section-mist { background: var(--mist); }
    .section-paper { background: var(--paper); }
    .section-card { background: var(--card); }
    .section-head {
      max-width: 760px;
      margin-bottom: 36px;
    }
    .section-head.wide { max-width: 820px; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 28px;
      padding: 0 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: var(--white);
      color: var(--pine);
      font-size: 12px;
      letter-spacing: .08em;
      font-weight: 500;
      margin-bottom: 14px;
    }
    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      background: var(--pine);
      border-radius: 2px;
    }
    .section h2 {
      font-size: 30px;
      line-height: 1.35;
      color: var(--ink);
      font-weight: 700;
      letter-spacing: .01em;
    }
    .section-lead {
      margin-top: 14px;
      color: var(--muted);
      font-size: 16.5px;
      line-height: 1.85;
    }
    .section-lead + .section-lead { margin-top: .95em; }

    /* nav */
    .site-header { position: relative; z-index: 50; }
    .topbar {
      background: var(--mist);
      border-bottom: 1px solid var(--line);
      font-size: 13px;
      color: var(--ink);
    }
    .topbar-inner {
      min-height: 38px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .brand-short {
      font-weight: 700;
      color: var(--ink);
      letter-spacing: .12em;
    }
    .topbar-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 6px 18px;
    }
    .topbar-meta a { color: var(--ink); }
    .topbar-meta a:hover { color: var(--pine); }
    .top-cta {
      color: var(--pine) !important;
      font-weight: 600;
    }
    .nav-main {
      background: var(--paper);
      border-bottom: 1px solid transparent;
      transition: box-shadow var(--ease), border-color var(--ease), background var(--ease);
    }
    .nav-main.is-stuck {
      position: sticky;
      top: 0;
      z-index: 60;
      border-bottom-color: var(--line);
      box-shadow: var(--shadow);
      background: rgba(246, 243, 236, .96);
    }
    .nav-inner {
      min-height: var(--nav-h);
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 24px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--ink);
      font-weight: 700;
      font-size: 18px;
      white-space: nowrap;
    }
    .logo:hover { color: var(--ink); }
    .logo-mark {
      width: 34px;
      height: 34px;
      flex: 0 0 34px;
    }
    .nav-links {
      display: flex;
      justify-content: center;
      gap: 4px 18px;
      flex-wrap: wrap;
    }
    .nav-links a {
      position: relative;
      color: var(--ink);
      font-size: 14.5px;
      padding: 8px 0;
      font-weight: 500;
    }
    .nav-links a:hover { color: var(--pine); }
    .nav-links a.is-active {
      color: var(--pine);
    }
    .nav-links a.is-active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 2px;
      height: 2px;
      background: var(--pine);
    }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      align-items: center;
      justify-content: center;
      background: var(--card);
    }
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 18px;
      height: 2px;
      background: var(--ink);
      position: relative;
    }
    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }
    .menu-toggle span::before { top: -6px; }
    .menu-toggle span::after { top: 6px; }
    .drawer-backdrop {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(20, 32, 28, .42);
      z-index: 70;
    }
    .drawer-backdrop.is-open { display: block; }

    /* hero */
    .hero {
      padding: 28px 0 20px;
      background:
        linear-gradient(180deg, var(--paper) 0%, #efebe1 100%);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
      gap: 28px;
      align-items: center;
    }
    .hero-copy { max-width: 680px; padding: 12px 0 8px; }
    .hero-brand {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--pine-deep);
      font-weight: 600;
      font-size: 14px;
      margin-bottom: 12px;
    }
    .hero h1 {
      font-size: 44px;
      line-height: 1.25;
      color: var(--ink);
      font-weight: 700;
    }
    .hero-slide-title {
      min-height: 3.2em;
      margin-top: 14px;
      font-size: 22px;
      line-height: 1.4;
      color: var(--pine-deep);
      font-weight: 600;
    }
    .hero-slide-title span { display: none; }
    .hero-slide-title span.is-active { display: block; }
    .hero-intro {
      margin-top: 16px;
      color: var(--muted);
      font-size: 16.5px;
      line-height: 1.85;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }
    .hero-kpis {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 28px;
      max-width: 640px;
    }
    .kpi {
      padding: 12px 14px;
      border: 1px solid var(--line);
      background: var(--card);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow);
    }
    .kpi b {
      display: block;
      color: var(--amber);
      font-size: 22px;
      line-height: 1.2;
      font-variant-numeric: tabular-nums;
    }
    .kpi span {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 13px;
    }
    .hero-visual {
      position: relative;
      transform: translate(22px, 16px) rotate(-1.8deg);
    }
    .hero-frame {
      position: relative;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow-hover);
      background: var(--ink-dark);
      min-height: 430px;
    }
    .hero-frame img {
      width: 100%;
      height: 460px;
      object-fit: cover;
      display: none;
    }
    .hero-frame img.is-active { display: block; }
    .hero-frame::after {
      content: "";
      position: absolute;
      inset: auto 0 0 0;
      height: 42%;
      background: linear-gradient(180deg, transparent, rgba(20, 32, 28, .42));
      pointer-events: none;
    }
    .hero-ticks {
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 18px;
      height: 10px;
      display: flex;
      gap: 6px;
      z-index: 2;
      pointer-events: none;
    }
    .hero-ticks i {
      flex: 1;
      height: 100%;
      border-right: 1px solid rgba(243, 238, 228, .45);
    }
    .hero-controls {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 18px;
      transform: rotate(1.8deg) translate(-10px, 0);
    }
    .hero-nav-btns { display: flex; gap: 8px; }
    .icon-btn {
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      background: var(--card);
      border-radius: var(--radius-sm);
      color: var(--ink);
      display: grid;
      place-items: center;
      transition: transform var(--ease), background var(--ease), border-color var(--ease);
    }
    .icon-btn:hover { transform: translateY(-1px); border-color: var(--pine); color: var(--pine); }
    .hero-dots { display: flex; gap: 8px; }
    .hero-dots button {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #cfc8ba;
    }
    .hero-dots button.is-active { background: var(--pine); }
    .hero-progress {
      flex: 1;
      height: 3px;
      background: #ddd6c8;
      border-radius: 99px;
      overflow: hidden;
      max-width: 220px;
    }
    .hero-progress b {
      display: block;
      height: 100%;
      width: 0;
      background: var(--pine);
    }
    .hero-progress b.is-run {
      animation: progressFill 6s linear forwards;
    }
    @keyframes progressFill {
      from { width: 0; }
      to { width: 100%; }
    }

    /* cards */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      transition: transform var(--ease), background var(--ease), color var(--ease), border-color var(--ease), box-shadow var(--ease);
    }
    .btn-primary {
      background: var(--pine);
      color: #fff;
      box-shadow: var(--shadow);
    }
    .btn-primary:hover {
      background: var(--pine-deep);
      color: #fff;
      transform: translateY(-1px);
    }
    .btn-ghost {
      background: transparent;
      color: var(--ink);
      border: 1px solid var(--ink);
    }
    .btn-ghost:hover {
      background: var(--ink);
      color: var(--cream);
      transform: translateY(-1px);
    }
    .btn-amber {
      background: var(--amber);
      color: #fff;
    }
    .btn-amber:hover {
      background: #a86d2e;
      color: #fff;
      transform: translateY(-1px);
    }
    .btn-text {
      color: var(--pine);
      font-weight: 600;
      padding: 0;
      min-height: auto;
    }
    .sell-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 22px;
    }
    .sell-item {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 24px 24px 22px;
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: 64px 1fr;
      gap: 14px;
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .sell-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .sell-no {
      font-variant-numeric: tabular-nums;
      font-size: 28px;
      font-weight: 700;
      color: var(--amber);
      line-height: 1;
    }
    .sell-item h3 {
      font-size: 20px;
      line-height: 1.4;
      color: var(--ink);
      margin-bottom: 8px;
    }
    .sell-item p { color: var(--muted); font-size: 15px; }
    .sell-item p + p { margin-top: .9em; }
    .intro-grid {
      display: grid;
      grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
      gap: 36px;
      align-items: center;
    }
    .intro-photo {
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid var(--line);
    }
    .intro-photo img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .param-list { display: grid; gap: 10px; margin-top: 22px; }
    .param {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 14px;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
    }
    .param span { color: var(--muted); }
    .param b { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; text-align: right; }
    .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 999px;
      background: var(--pine-soft);
      color: var(--pine-deep);
      font-size: 12px;
      font-weight: 600;
    }
    .scene-board {
      display: grid;
      grid-template-columns: minmax(260px, 34%) 1fr;
      gap: 24px;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .scene-tabs { padding: 18px 10px; background: #f3efe6; }
    .scene-tab {
      width: 100%;
      text-align: left;
      padding: 14px 16px;
      border-radius: var(--radius-sm);
      color: var(--ink);
      display: grid;
      gap: 4px;
    }
    .scene-tab small { color: var(--muted); font-size: 13px; }
    .scene-tab.is-active {
      background: var(--white);
      box-shadow: var(--shadow);
      border-left: 3px solid var(--pine);
    }
    .scene-preview { padding: 22px; }
    .scene-preview img {
      width: 100%;
      height: 280px;
      object-fit: cover;
      border-radius: 10px;
      border: 1px solid var(--line);
    }
    .steps {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
      margin: 16px 0 8px;
    }
    .steps li {
      padding: 10px 12px;
      background: var(--mist);
      border-radius: var(--radius-sm);
      font-size: 13px;
      color: var(--ink);
    }
    .steps li b {
      display: block;
      color: var(--pine);
      font-variant-numeric: tabular-nums;
      margin-bottom: 4px;
    }
    .scene-note {
      margin-top: 12px;
      padding: 12px 14px;
      border: 1px dashed var(--line);
      border-radius: var(--radius-sm);
      color: var(--muted);
      font-size: 14.5px;
    }
    .adv-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 22px;
    }
    .adv-card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 22px 22px 18px;
      box-shadow: var(--shadow);
      border-top: 3px solid var(--pine);
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .adv-card:nth-child(3n+2) { border-top-color: var(--amber); }
    .adv-card:nth-child(3n) { border-top-color: var(--ink); }
    .adv-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .adv-card .no {
      font-variant-numeric: tabular-nums;
      color: var(--amber);
      font-weight: 700;
      font-size: 13px;
      letter-spacing: .08em;
    }
    .adv-card h3 {
      margin: 8px 0 10px;
      font-size: 20px;
      line-height: 1.4;
      color: var(--ink);
    }
    .adv-card p { color: var(--muted); font-size: 15px; }
    .adv-card p + p { margin-top: .9em; }
    .mini-metric {
      margin-top: 16px;
      padding-top: 12px;
      border-top: 1px solid var(--line);
      color: var(--pine-deep);
      font-size: 13px;
      font-weight: 600;
      font-variant-numeric: tabular-nums;
    }
    .product-stack { display: grid; gap: 22px; }
    .product-row {
      display: grid;
      grid-template-columns: minmax(280px, 42%) 1fr;
      gap: 0;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .product-row:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .product-row img {
      width: 100%;
      height: 100%;
      min-height: 240px;
      object-fit: cover;
    }
    .product-body { padding: 28px 30px; }
    .product-body h3 {
      font-size: 22px;
      line-height: 1.4;
      color: var(--ink);
    }
    .product-meta {
      display: grid;
      gap: 8px;
      margin: 16px 0 18px;
      color: var(--muted);
    }
    .product-meta b { color: var(--ink); font-weight: 600; }
    .compare-wrap {
      overflow: auto;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: var(--card);
      box-shadow: var(--shadow);
    }
    .compare-table th, .compare-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--line);
      text-align: left;
      vertical-align: top;
      font-size: 14.5px;
    }
    .compare-table th {
      background: var(--ink);
      color: var(--cream);
      font-weight: 600;
    }
    .compare-table th:first-child, .compare-table td:first-child { width: 18%; color: var(--ink); font-weight: 600; }
    .compare-table td:nth-child(2) { background: #f3f8f5; color: var(--pine-deep); font-weight: 500; }
    .compare-table tr:last-child td { border-bottom: 0; }
    .mobile-compare { display: none; }
    .dark-block {
      background: var(--ink-dark) url("/assets/images/a8f46e0f639e3f9c.webp") center/cover no-repeat;
      color: var(--cream);
      padding: 88px 0;
      scroll-margin-top: 86px;
    }
    .dark-block .container {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.2fr);
      gap: 36px;
      align-items: start;
    }
    .dark-quote {
      font-size: 32px;
      line-height: 1.35;
      font-weight: 700;
      max-width: 520px;
    }
    .dark-quote span { color: #d7b07a; }
    .case-slices { display: grid; gap: 16px; }
    .case-card {
      background: rgba(243, 238, 228, .06);
      border: 1px solid rgba(214, 208, 196, .22);
      border-radius: 12px;
      padding: 20px 22px;
    }
    .case-card h3 { font-size: 20px; line-height: 1.4; margin-bottom: 8px; }
    .case-card p { color: #d9d2c6; }
    .case-card p + p { margin-top: .9em; }
    .case-result {
      margin-top: 12px;
      color: #e2c08a;
      font-weight: 600;
      font-variant-numeric: tabular-nums;
    }
    .story-list { display: grid; gap: 18px; }
    .story {
      display: grid;
      grid-template-columns: 88px 1fr;
      gap: 18px;
      padding: 22px;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 12px;
      box-shadow: var(--shadow);
    }
    .avatar {
      width: 72px;
      height: 72px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      color: var(--cream);
      font-weight: 700;
    }
    .avatar.a { background: #1F7A63; }
    .avatar.b { background: #C4843A; }
    .story h3 { font-size: 20px; color: var(--ink); margin-bottom: 6px; }
    .story p { color: var(--muted); }
    .path {
      margin-top: 12px;
      padding: 10px 12px;
      background: var(--mist);
      border-radius: var(--radius-sm);
      color: var(--ink);
      font-size: 14.5px;
    }
    .stats-bar {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
      padding: 8px 0;
    }
    .stat {
      padding: 22px 8px;
      border-right: 1px solid var(--line);
    }
    .stat:last-child { border-right: 0; }
    .stat b {
      display: block;
      font-size: 36px;
      line-height: 1.15;
      color: var(--amber);
      font-variant-numeric: tabular-nums;
      font-weight: 700;
    }
    .stat em {
      font-style: normal;
      color: var(--pine);
      font-size: 14px;
      font-weight: 600;
    }
    .stat span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; }
    .review-head {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: end;
      margin-bottom: 24px;
    }
    .review-track {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: calc((100% - 44px) / 3);
      gap: 22px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding-bottom: 8px;
    }
    .review-card {
      scroll-snap-align: start;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 22px;
      box-shadow: var(--shadow);
      min-height: 230px;
    }
    .review-card .who { font-weight: 700; color: var(--ink); }
    .review-card .mod { color: var(--pine); font-size: 13px; margin: 6px 0 10px; }
    .review-card p { color: var(--muted); }
    .limit {
      margin-top: 14px;
      font-size: 13px;
      color: var(--amber);
      font-weight: 600;
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 20px;
    }
    .news-card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
      display: flex;
      flex-direction: column;
      transition: transform var(--ease), box-shadow var(--ease);
    }
    .news-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .news-card img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
    }
    .news-card div { padding: 16px 16px 18px; }
    .news-card time { color: var(--muted); font-size: 13px; font-variant-numeric: tabular-nums; }
    .news-card h3 {
      margin-top: 8px;
      font-size: 18px;
      line-height: 1.45;
      color: var(--ink);
    }
    .news-more { margin-top: 22px; }
    .secure-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 28px;
    }
    .check-item {
      display: grid;
      grid-template-columns: 18px 1fr;
      gap: 10px;
      padding: 14px 0;
      border-bottom: 1px solid var(--line);
    }
    .check-item:last-child { border-bottom: 0; }
    .check-item i {
      width: 10px;
      height: 10px;
      margin-top: 8px;
      background: var(--pine);
      border-radius: 2px;
    }
    .check-item h3 { font-size: 20px; color: var(--ink); }
    .check-item p { color: var(--muted); margin-top: 4px; }
    .flow {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 22px;
      box-shadow: var(--shadow);
    }
    .flow ol { display: grid; gap: 12px; }
    .flow li {
      display: grid;
      grid-template-columns: 36px 1fr;
      gap: 10px;
      align-items: start;
    }
    .flow b {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: var(--pine);
      color: #fff;
      display: grid;
      place-items: center;
      font-variant-numeric: tabular-nums;
    }

    /* forms */
    .cta-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 32px;
      align-items: start;
    }
    .form-card, .next-card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 26px;
      box-shadow: var(--shadow);
    }
    .field { margin-bottom: 14px; }
    .field label {
      display: block;
      margin-bottom: 6px;
      color: var(--ink);
      font-weight: 600;
      font-size: 14px;
    }
    .field input, .field select {
      width: 100%;
      height: 48px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      padding: 0 12px;
      background: var(--white);
      color: var(--ink);
    }
    .field input:focus, .field select:focus {
      outline: none;
      border-color: var(--pine);
      box-shadow: 0 0 0 3px rgba(31, 122, 99, .12);
    }
    .field.is-error input, .field.is-error select { border-color: var(--amber); }
    .field .err {
      display: none;
      color: var(--amber);
      font-size: 13px;
      margin-top: 4px;
    }
    .field.is-error .err { display: block; }
    .captcha-row { display: grid; grid-template-columns: 1fr 120px; gap: 10px; }
    .captcha-box {
      height: 48px;
      border-radius: var(--radius-sm);
      background: repeating-linear-gradient(-45deg, #e7eee9, #e7eee9 8px, #f6f3ec 8px, #f6f3ec 16px);
      border: 1px solid var(--line);
      display: grid;
      place-items: center;
      letter-spacing: .28em;
      font-weight: 700;
      color: var(--ink);
      font-variant-numeric: tabular-nums;
      user-select: none;
    }
    .form-success {
      display: none;
      padding: 18px;
      background: var(--mist);
      border-radius: var(--radius-sm);
      color: var(--pine-deep);
    }
    .next-card h3 { font-size: 20px; color: var(--ink); margin-bottom: 12px; }
    .next-card li {
      padding: 12px 0;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
    }
    .next-card li:last-child { border-bottom: 0; }
    .next-card li strong { color: var(--ink); display: block; margin-bottom: 4px; }

    /* faq */
    .faq-list { display: grid; gap: 10px; }
    .faq-item {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .faq-item.is-open { border-left: 3px solid var(--pine); }
    .faq-item button {
      width: 100%;
      text-align: left;
      padding: 16px 18px;
      font-weight: 600;
      color: var(--ink);
      display: flex;
      justify-content: space-between;
      gap: 12px;
      min-height: 52px;
    }
    .faq-item button span {
      color: var(--pine);
      font-size: 20px;
      line-height: 1;
    }
    .faq-item .faq-a {
      display: none;
      padding: 0 18px 16px;
      color: var(--muted);
    }
    .faq-item.is-open .faq-a { display: block; }
    .guarantee {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }
    .g-item {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 20px;
    }
    .g-item svg { display: block; margin-bottom: 10px; }
    .g-item h3 { font-size: 18px; color: var(--ink); margin-bottom: 8px; }
    .g-item p { color: var(--muted); font-size: 14.5px; }

    /* footer */
    .site-footer {
      background: var(--ink);
      color: #d7d1c6;
      padding: 56px 0 28px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr .9fr .9fr 1fr;
      gap: 28px;
      padding-bottom: 28px;
      border-bottom: 1px solid rgba(214, 208, 196, .2);
    }
    .site-footer h3 { color: var(--cream); font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #d7d1c6; }
    .site-footer a:hover { color: #fff; }
    .footer-brand { font-size: 20px; color: var(--cream); font-weight: 700; margin-bottom: 10px; }
    .footer-map, .footer-comp { display: grid; gap: 8px; }
    .copy {
      padding-top: 18px;
      font-size: 13px;
      color: #b7b1a6;
    }
    .float-cta {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 55;
      background: var(--ink-dark);
      color: var(--cream);
      transform: translateY(110%);
      transition: transform .28s ease;
      box-shadow: 0 -8px 24px rgba(20, 32, 28, .18);
    }
    .float-cta.is-visible { transform: translateY(0); }
    .float-inner {
      min-height: var(--float-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .float-inner p { margin: 0; }
    .float-inner strong { color: #e7c48a; }
    .float-actions { display: flex; gap: 10px; align-items: center; }
    .float-actions a.tel { color: var(--cream); font-variant-numeric: tabular-nums; font-weight: 600; }
    body.has-float { padding-bottom: var(--float-h); }

    /* states */
    .btn:active, .icon-btn:active { transform: translateY(0); }
    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      border: 0;
    }

    /* breakpoints */
    @media (max-width: 1280px) {
      .hero h1 { font-size: 40px; }
      .news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    @media (max-width: 1024px) {
      .container { width: min(100% - 40px, var(--container)); }
      .nav-links { display: none; }
      .menu-toggle { display: inline-flex; }
      .nav-cta .btn { display: none; }
      .drawer {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: min(86vw, 360px);
        background: var(--paper);
        z-index: 80;
        transform: translateX(100%);
        transition: transform .24s ease;
        padding: 24px 20px;
        overflow: auto;
      }
      .drawer.is-open { transform: translateX(0); }
      .drawer .logo { margin-bottom: 18px; }
      .drawer a {
        display: block;
        padding: 12px 0;
        color: var(--ink);
        border-bottom: 1px solid var(--line);
        min-height: 44px;
      }
      .drawer .btn { width: 100%; margin-top: 18px; }
      .hero-grid, .intro-grid, .scene-board, .secure-grid, .cta-grid, .dark-block .container, .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-visual { transform: none; }
      .hero-controls { transform: none; }
      .hero-frame, .hero-frame img { min-height: 320px; height: 340px; }
      .adv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .product-row { grid-template-columns: 1fr; }
      .product-row img { height: 220px; min-height: 220px; }
      .stats-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .stat { border-right: 0; border-bottom: 1px solid var(--line); }
      .review-track { grid-auto-columns: calc((100% - 22px) / 2); }
      .guarantee { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    @media (max-width: 768px) {
      body { font-size: 16px; }
      .section, .dark-block { padding: 56px 0; }
      .section h2, .dark-quote { font-size: 26px; }
      .hero h1 { font-size: 32px; }
      .topbar-meta span:nth-child(3) { display: none; }
      .sell-grid, .adv-grid, .news-grid, .stats-bar, .guarantee, .footer-grid, .hero-kpis {
        grid-template-columns: 1fr;
      }
      .sell-item { grid-template-columns: 48px 1fr; }
      .compare-table { display: none; }
      .mobile-compare { display: grid; gap: 12px; }
      .m-row {
        background: var(--card);
        border: 1px solid var(--line);
        border-radius: 10px;
        padding: 14px;
      }
      .m-row h3 { font-size: 16px; margin-bottom: 8px; color: var(--ink); }
      .m-row p { font-size: 14px; color: var(--muted); margin-top: 6px; }
      .review-track { grid-auto-columns: 88%; }
      .intro-photo img { height: 240px; }
      .float-copy { display: none; }
      .captcha-row { grid-template-columns: 1fr 96px; }
      .story { grid-template-columns: 64px 1fr; }
    }
    @media (max-width: 375px) {
      .container { width: min(100% - 32px, var(--container)); }
      .hero-actions .btn, .float-actions .btn { width: auto; }
      .hero-slide-title { font-size: 18px; min-height: auto; }
      .nav-inner { gap: 10px; }
      .logo { font-size: 15px; }
    }