/* roulang page: index */
:root {
      --c-primary: #2F73B3;
      --c-primary-ink: #1F4E7A;
      --c-accent: #1A8F86;
      --c-bg: #F4F7FB;
      --c-surface: #FFFFFF;
      --c-tint: #E8F1F8;
      --c-dark: #173044;
      --c-text: #1C2B36;
      --c-muted: #5B6C79;
      --c-line: #D9E3EE;
      --c-card-line: #E7EEF5;
      --shadow-card: 0 10px 28px rgba(23, 48, 68, .08);
      --shadow-hover: 0 14px 32px rgba(23, 48, 68, .12);
      --r: 10px;
      --r-btn: 8px;
      --container: 1240px;
      --nav-top: 40px;
      --nav-main: 72px;
      --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.75;
      color: var(--c-text);
      background: var(--c-bg);
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--c-primary); text-decoration: none; }
    a:hover { color: var(--c-primary-ink); }
    button, input, select, textarea { font-family: inherit; }
    h1, h2, h3, p { margin: 0; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    .skip {
      position: absolute;
      left: -999px;
      top: 0;
      background: var(--c-primary);
      color: #fff;
      padding: 8px 14px;
      z-index: 10000;
    }
    .skip:focus { left: 12px; top: 12px; }
    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }
    .site-header {
      position: relative;
      z-index: 80;
    }
    .topbar {
      background: var(--c-primary-ink);
      color: #E7F0F7;
      font-size: 13px;
      min-height: var(--nav-top);
      display: flex;
      align-items: center;
      transition: transform .28s ease, opacity .28s ease;
    }
    .topbar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
      min-height: var(--nav-top);
    }
    .topbar-left, .topbar-right { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
    .topbar a { color: #F4F8FC; }
    .topbar a:hover { color: #fff; }
    .trust {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.16);
      border-radius: 6px;
      padding: 3px 8px;
      color: #D7E8F5;
      white-space: nowrap;
    }
    .trust i {
      width: 7px; height: 7px; border-radius: 50%;
      background: var(--c-accent);
      display: inline-block;
    }
    .nav-wrap {
      background: rgba(255,255,255,.96);
      border-bottom: 1px solid var(--c-line);
      transition: box-shadow .25s ease;
    }
    .nav-wrap.is-sticky {
      position: sticky;
      top: 0;
      z-index: 90;
      box-shadow: 0 8px 24px rgba(23,48,68,.08);
    }
    .header-hidden .topbar {
      transform: translateY(-100%);
      opacity: 0;
      pointer-events: none;
      height: 0;
      min-height: 0;
      overflow: hidden;
    }
    .nav-main {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
      min-height: var(--nav-main);
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 24px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--c-primary-ink);
      font-weight: 700;
      letter-spacing: .02em;
      font-size: 18px;
    }
    .logo:hover { color: var(--c-primary); }
    .logo-mark {
      width: 36px; height: 36px;
      border-radius: 8px;
      background:
        linear-gradient(180deg, #3B86C6, var(--c-primary-ink));
      position: relative;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.18);
    }
    .logo-mark::before, .logo-mark::after {
      content: "";
      position: absolute;
      left: 8px; right: 8px;
      height: 3px;
      background: rgba(255,255,255,.88);
      border-radius: 1px;
    }
    .logo-mark::before { top: 11px; }
    .logo-mark::after { bottom: 11px; width: 12px; left: 12px; }
    .nav-links {
      display: flex;
      justify-content: center;
      gap: 6px;
    }
    .nav-links a {
      color: var(--c-text);
      padding: 10px 12px;
      border-radius: 8px;
      font-size: 15px;
      position: relative;
    }
    .nav-links a:hover { color: var(--c-primary); background: var(--c-tint); }
    .nav-links a.is-active {
      color: var(--c-primary-ink);
      font-weight: 600;
    }
    .nav-links a.is-active::after {
      content: "";
      position: absolute;
      left: 12px; right: 12px; bottom: 4px;
      height: 2px;
      background: var(--c-primary);
      border-radius: 2px;
    }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      border-radius: var(--r-btn);
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
      text-align: center;
    }
    .btn-primary {
      background: var(--c-primary);
      color: #fff;
      box-shadow: 0 8px 18px rgba(47,115,179,.22);
    }
    .btn-primary:hover {
      background: var(--c-primary-ink);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }
    .btn-ghost {
      background: transparent;
      color: #fff;
      border-color: rgba(255,255,255,.55);
    }
    .btn-ghost:hover {
      background: rgba(255,255,255,.12);
      color: #fff;
      transform: translateY(-2px);
    }
    .btn-line {
      background: #fff;
      color: var(--c-primary);
      border-color: var(--c-primary);
    }
    .btn-line:hover {
      background: var(--c-tint);
      color: var(--c-primary-ink);
      transform: translateY(-2px);
    }
    .btn-dark {
      background: #fff;
      color: var(--c-primary-ink);
    }
    .btn-dark:hover { background: var(--c-tint); color: var(--c-primary-ink); transform: translateY(-2px); }
    .btn:active { transform: translateY(1px); }
    .btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 2px solid var(--c-accent);
      outline-offset: 2px;
    }
    .menu-toggle {
      display: none;
      width: 44px; height: 44px;
      border: 1px solid var(--c-line);
      background: #fff;
      border-radius: 8px;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
    }
    .menu-toggle span {
      display: block; width: 18px; height: 2px; background: var(--c-primary-ink); border-radius: 2px;
    }
    .drawer-mask {
      position: fixed; inset: 0;
      background: rgba(23,48,68,.46);
      opacity: 0; pointer-events: none;
      transition: opacity .25s ease;
      z-index: 120;
    }
    .drawer {
      position: fixed; top: 0; right: 0; height: 100%;
      width: min(86vw, 360px);
      background: #fff;
      z-index: 130;
      transform: translateX(100%);
      transition: transform .28s ease;
      padding: 24px 20px 32px;
      display: flex;
      flex-direction: column;
      gap: 18px;
      box-shadow: -12px 0 32px rgba(23,48,68,.12);
    }
    body.drawer-open .drawer { transform: translateX(0); }
    body.drawer-open .drawer-mask { opacity: 1; pointer-events: auto; }
    body.drawer-open { overflow: hidden; }
    .drawer a { color: var(--c-text); padding: 12px 8px; border-bottom: 1px solid var(--c-line); }
    .drawer a:hover, .drawer a.is-active { color: var(--c-primary); }
    .drawer-close {
      align-self: flex-end;
      width: 44px; height: 44px;
      border: 1px solid var(--c-line);
      background: #fff;
      border-radius: 8px;
      cursor: pointer;
      font-size: 22px;
      color: var(--c-primary-ink);
    }
    .phone-fab {
      display: none;
      width: 44px; height: 44px;
      border-radius: 8px;
      background: var(--c-tint);
      color: var(--c-primary-ink);
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 700;
      border: 1px solid var(--c-line);
    }
    .hero {
      position: relative;
      background: var(--c-dark);
      overflow: hidden;
    }
    .hero-track { position: relative; min-height: 620px; }
    .hero-slide {
      position: absolute; inset: 0;
      opacity: 0;
      visibility: hidden;
      transition: opacity .7s ease, visibility .7s ease;
    }
    .hero-slide.is-active { opacity: 1; visibility: visible; z-index: 2; }
    .hero-slide img {
      width: 100%; height: 100%; object-fit: cover;
      clip-path: polygon(32% 0, 100% 0, 100% 100%, 22% 100%);
      transform: scale(1.04);
    }
    .hero-mask {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(31,78,122,.86) 0%, rgba(47,115,179,.48) 46%, rgba(23,48,68,.28) 100%);
      z-index: 1;
    }
    .hero-grid {
      position: absolute; inset: 0; z-index: 1; pointer-events: none;
      background-image:
        repeating-linear-gradient(90deg, transparent 0 78px, rgba(255,255,255,.05) 78px 79px),
        repeating-linear-gradient(0deg, transparent 0 22px, rgba(255,255,255,.04) 22px 23px);
      mix-blend-mode: overlay;
    }
    .hero-inner {
      position: relative; z-index: 3;
      min-height: 620px;
      display: grid;
      grid-template-columns: 5fr 7fr;
      align-items: end;
      padding: 92px 0 72px;
    }
    .hero-copy { max-width: 560px; color: #fff; }
    .kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.2);
      border-radius: 6px;
      padding: 4px 10px;
      font-size: 13px;
      letter-spacing: .04em;
      margin-bottom: 16px;
    }
    .hero h1, .hero-title {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 700;
      margin-bottom: 16px;
      max-width: 15ch;
    }
    .hero-lead {
      font-size: 16px;
      line-height: 1.8;
      color: #E8F0F6;
      margin-bottom: 26px;
    }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
    .kpi-row { display: flex; gap: 22px; flex-wrap: wrap; }
    .kpi b {
      display: block;
      font-size: 22px;
      font-variant-numeric: tabular-nums;
      font-weight: 700;
    }
    .kpi span { font-size: 13px; color: #D5E3EE; }
    .hero-ctrl {
      position: absolute; z-index: 5;
      bottom: 28px; right: max(20px, calc((100% - var(--container)) / 2));
      display: flex; align-items: center; gap: 10px;
    }
    .hero-arrow, .dot {
      width: 44px; height: 44px;
      border: 1px solid rgba(255,255,255,.35);
      background: rgba(23,48,68,.35);
      color: #fff;
      border-radius: 8px;
      cursor: pointer;
    }
    .hero-arrow:hover { background: rgba(47,115,179,.8); }
    .dots { display: flex; gap: 8px; }
    .dot { width: 12px; height: 12px; min-width: 12px; border-radius: 50%; padding: 0; }
    .dot.is-active { background: #fff; }
    main { display: block; }
    .section {
      padding: 108px 0;
      position: relative;
    }
    .section-tint { background: var(--c-tint); }
    .section-surface { background: var(--c-surface); }
    .section-head { max-width: 760px; margin-bottom: 40px; }
    .section-head.wide { max-width: none; display: flex; justify-content: space-between; gap: 24px; align-items: end; }
    h2 {
      font-size: 30px;
      line-height: 1.3;
      color: var(--c-primary-ink);
      margin-bottom: 14px;
    }
    h2 em {
      font-style: normal;
      box-shadow: inset 0 -8px 0 rgba(47,115,179,.16);
    }
    h3 { font-size: 21px; line-height: 1.35; color: var(--c-primary-ink); }
    .lead { color: var(--c-muted); font-size: 16px; }
    .pains {
      display: grid;
      grid-template-columns: 1fr 1.15fr;
      gap: 28px;
      align-items: stretch;
    }
    .pain-list { display: grid; gap: 12px; }
    .pain-item {
      display: grid;
      grid-template-columns: 92px 1fr;
      gap: 14px;
      background: #fff;
      border: 1px solid var(--c-card-line);
      border-radius: var(--r);
      padding: 12px;
      box-shadow: var(--shadow-card);
      cursor: pointer;
      text-align: left;
      color: inherit;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .pain-item img { width: 92px; height: 72px; object-fit: cover; border-radius: 8px; }
    .pain-item:hover, .pain-item.is-active {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #c5d8ea;
    }
    .pain-item.is-active { outline: 2px solid rgba(47,115,179,.35); }
    .pain-item h3 { font-size: 18px; margin-bottom: 4px; }
    .pain-item p { color: var(--c-muted); font-size: 14px; line-height: 1.6; }
    .pain-stage {
      position: relative;
      min-height: 460px;
      border-radius: var(--r);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .pain-stage img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
    .pain-caption {
      position: absolute; left: 0; right: 0; bottom: 0;
      padding: 22px 22px 20px;
      background: linear-gradient(180deg, transparent, rgba(23,48,68,.82));
      color: #fff;
    }
    .split {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 48px;
      align-items: center;
    }
    .spec-board {
      margin-top: 22px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .spec {
      background: var(--c-tint);
      border: 1px solid var(--c-line);
      border-radius: 8px;
      padding: 12px 14px;
    }
    .spec b { display: block; font-variant-numeric: tabular-nums; color: var(--c-primary-ink); }
    .spec span { font-size: 13px; color: var(--c-muted); }
    .split-visual {
      border-radius: var(--r);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--c-card-line);
    }
    .split-visual img { width: 100%; height: 520px; object-fit: cover; }
    .timeline {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
      position: relative;
    }
    .timeline::before {
      content: "";
      position: absolute;
      left: 8px; right: 8px; top: 27px;
      height: 2px;
      background: linear-gradient(90deg, var(--c-accent), var(--c-primary));
    }
    .step {
      background: #fff;
      border: 1px solid var(--c-card-line);
      border-radius: var(--r);
      padding: 20px 16px 18px;
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .step-num {
      width: 36px; height: 36px;
      border-radius: 50%;
      background: var(--c-accent);
      color: #fff;
      display: flex; align-items: center; justify-content: center;
      font-weight: 700;
      font-variant-numeric: tabular-nums;
      margin-bottom: 14px;
      position: relative;
      z-index: 1;
    }
    .step h3 { font-size: 17px; margin-bottom: 8px; }
    .step p { font-size: 14px; color: var(--c-muted); }
    .cards-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .card {
      background: var(--c-surface);
      border: 1px solid var(--c-card-line);
      border-radius: var(--r);
      box-shadow: var(--shadow-card);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .cap-card { padding: 24px 22px 22px; }
    .cap-ico {
      width: 42px; height: 42px;
      border-radius: 8px;
      background:
        repeating-linear-gradient(90deg, var(--c-tint) 0 4px, #d5e6f3 4px 5px);
      border: 1px solid var(--c-line);
      margin-bottom: 16px;
      position: relative;
    }
    .cap-ico::after {
      content: "";
      position: absolute; left: 10px; right: 10px; top: 12px; bottom: 12px;
      border: 2px solid var(--c-primary);
      border-radius: 3px;
    }
    .cap-card h3 { margin-bottom: 8px; }
    .cap-card p { color: var(--c-muted); font-size: 15px; }
    .products {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .product { overflow: hidden; display: flex; flex-direction: column; }
    .product img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .product-body { padding: 18px 18px 8px; }
    .product-body h3 { margin-bottom: 8px; }
    .product-body p { color: var(--c-muted); font-size: 15px; }
    .param-bar {
      display: flex; flex-wrap: wrap; gap: 8px;
      padding: 0 18px 18px;
      margin-top: auto;
    }
    .badge {
      background: var(--c-tint);
      color: var(--c-primary-ink);
      border-radius: 6px;
      font-size: 12px;
      padding: 4px 8px;
      font-weight: 600;
    }
    .dark-band {
      background: var(--c-dark);
      color: #E8EEF3;
      padding: 96px 0;
      position: relative;
      overflow: hidden;
    }
    .dark-band::before {
      content: "";
      position: absolute; inset: 0;
      background-image: url("/assets/images/006525a6164db5ea.webp");
      background-size: cover;
      background-position: center;
      opacity: .22;
    }
    .dark-band .container { position: relative; z-index: 1; display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center; }
    .idea h2 { color: #fff; }
    .idea p { color: #C9D7E3; }
    .case-slices { display: grid; gap: 16px; }
    .case-slice {
      display: grid;
      grid-template-columns: 140px 1fr;
      gap: 16px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.12);
      border-radius: var(--r);
      overflow: hidden;
    }
    .case-slice img { width: 140px; height: 100%; object-fit: cover; min-height: 110px; }
    .case-slice div { padding: 14px 14px 14px 0; }
    .case-slice strong { display: block; color: #fff; margin-bottom: 4px; }
    .stats {
      background: var(--c-tint);
      padding: 64px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      background: #fff;
      border: 1px solid var(--c-card-line);
      border-radius: var(--r);
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }
    .stat {
      padding: 32px 20px;
      text-align: center;
      position: relative;
    }
    .stat + .stat::before {
      content: "";
      position: absolute; left: 0; top: 22px; bottom: 22px;
      width: 1px; background: var(--c-line);
    }
    .stat b {
      display: block;
      font-size: 36px;
      color: var(--c-primary);
      font-variant-numeric: tabular-nums;
      font-weight: 700;
      line-height: 1.2;
    }
    .stat span { color: var(--c-muted); font-size: 14px; }
    .story {
      display: grid;
      grid-template-columns: 7fr 5fr;
      gap: 36px;
      align-items: center;
      margin-bottom: 56px;
    }
    .story.reverse { grid-template-columns: 5fr 7fr; }
    .story.reverse .story-copy { order: -1; }
    .story img {
      width: 100%;
      height: 420px;
      object-fit: cover;
      border-radius: var(--r);
      box-shadow: var(--shadow-card);
    }
    .story h3 { margin: 10px 0 12px; }
    .story p { color: var(--c-muted); margin-bottom: 12px; }
    .reviews {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .quote {
      background: #fff;
      border: 1px solid var(--c-card-line);
      border-left: 4px solid var(--c-primary);
      border-radius: var(--r);
      box-shadow: var(--shadow-card);
      padding: 22px 22px 18px;
    }
    .quote:nth-child(even) { transform: translateY(18px); }
    .quote p { color: var(--c-text); margin-bottom: 14px; }
    .quote footer { color: var(--c-muted); font-size: 14px; }
    .scene-board {
      display: grid;
      grid-template-columns: 280px 1fr;
      gap: 24px;
      background: #fff;
      border: 1px solid var(--c-card-line);
      border-radius: var(--r);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      min-height: 420px;
    }
    .scene-index { background: var(--c-tint); padding: 18px 12px; display: flex; flex-direction: column; gap: 8px; }
    .scene-btn {
      text-align: left;
      background: transparent;
      border: 0;
      border-radius: 8px;
      padding: 12px 12px;
      color: var(--c-text);
      cursor: pointer;
      min-height: 44px;
    }
    .scene-btn.is-active, .scene-btn:hover {
      background: #fff;
      color: var(--c-primary-ink);
      box-shadow: var(--shadow-card);
    }
    .scene-panel { display: none; padding: 28px; }
    .scene-panel.is-active { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: center; }
    .scene-panel img { width: 100%; height: 280px; object-fit: cover; border-radius: 8px; }
    .check-list { margin-top: 12px; }
    .check-list li {
      position: relative;
      padding-left: 18px;
      color: var(--c-muted);
      margin-bottom: 6px;
    }
    .check-list li::before {
      content: "";
      position: absolute; left: 0; top: 10px;
      width: 8px; height: 8px; border-radius: 2px;
      background: var(--c-accent);
    }
    .compliance {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 40px;
      align-items: center;
    }
    .compliance img {
      width: 100%; height: 460px; object-fit: cover; border-radius: var(--r); box-shadow: var(--shadow-card);
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .news-card { overflow: hidden; }
    .news-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .news-card .body { padding: 16px 16px 18px; }
    .news-card time { font-size: 13px; color: var(--c-muted); }
    .news-card h3 { font-size: 18px; margin: 6px 0 8px; }
    .news-card p { font-size: 14px; color: var(--c-muted); }
    .more-link {
      display: inline-flex;
      margin-top: 8px;
      color: var(--c-primary);
      font-weight: 600;
    }
    .dash {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .meter {
      background: #fff;
      border: 1px solid var(--c-card-line);
      border-radius: var(--r);
      box-shadow: var(--shadow-card);
      padding: 20px 18px;
    }
    .meter b {
      display: block;
      font-size: 28px;
      color: var(--c-primary-ink);
      font-variant-numeric: tabular-nums;
      font-weight: 700;
    }
    .bar {
      height: 6px;
      background: #e1ebf4;
      border-radius: 99px;
      margin: 10px 0 8px;
      overflow: hidden;
    }
    .bar i {
      display: block; height: 100%;
      background: linear-gradient(90deg, var(--c-accent), var(--c-primary));
      width: var(--w, 70%);
    }
    .meter span { font-size: 13px; color: var(--c-muted); }
    .faq-list { display: grid; gap: 10px; max-width: 920px; }
    .faq-item {
      background: #fff;
      border: 1px solid var(--c-card-line);
      border-radius: var(--r);
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }
    .faq-item button {
      width: 100%;
      min-height: 56px;
      text-align: left;
      background: #fff;
      border: 0;
      padding: 16px 48px 16px 18px;
      font-size: 16px;
      font-weight: 600;
      color: var(--c-primary-ink);
      cursor: pointer;
      position: relative;
    }
    .faq-item button::after {
      content: "";
      position: absolute; right: 18px; top: 50%;
      width: 10px; height: 10px;
      border-right: 2px solid var(--c-primary);
      border-bottom: 2px solid var(--c-primary);
      transform: translateY(-70%) rotate(45deg);
      transition: transform .2s ease;
    }
    .faq-item.is-open button { background: var(--c-tint); }
    .faq-item.is-open button::after { transform: translateY(-20%) rotate(225deg); }
    .faq-panel {
      display: none;
      padding: 0 18px 16px;
      color: var(--c-muted);
      background: var(--c-tint);
    }
    .faq-item.is-open .faq-panel { display: block; }
    .cta-band {
      padding: 88px 0 100px;
    }
    .cta-box {
      background: var(--c-primary);
      color: #fff;
      border-radius: 10px;
      padding: 42px 40px;
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 36px;
      box-shadow: var(--shadow-hover);
    }
    .cta-box h2 { color: #fff; }
    .cta-box p { color: #E7F1F9; }
    .form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .form .full { grid-column: 1 / -1; }
    label { display: block; font-size: 13px; margin-bottom: 6px; color: #EEF5FB; }
    input, select, textarea {
      width: 100%;
      min-height: 46px;
      border: 1px solid rgba(255,255,255,.28);
      background: rgba(255,255,255,.12);
      color: #fff;
      border-radius: 8px;
      padding: 10px 12px;
    }
    textarea { min-height: 92px; resize: vertical; }
    input::placeholder, textarea::placeholder { color: rgba(255,255,255,.62); }
    select option { color: var(--c-text); }
    input:focus, select:focus, textarea:focus {
      border-color: #fff;
      background: rgba(255,255,255,.18);
    }
    .form-msg {
      grid-column: 1 / -1;
      background: rgba(26,143,134,.18);
      border: 1px solid rgba(255,255,255,.28);
      border-radius: 8px;
      padding: 10px 12px;
    }
    .form-msg.error { background: rgba(160, 40, 40, .2); }
    .site-footer {
      background: var(--c-dark);
      color: #C5D3DE;
      padding: 64px 0 28px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr .9fr .9fr 1fr;
      gap: 28px;
      margin-bottom: 32px;
    }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #D5E2EC; }
    .site-footer a:hover { color: #fff; }
    .foot-logo { color: #fff; font-weight: 700; font-size: 18px; display: inline-flex; align-items: center; gap: 8px; margin-bottom: 12px; }
    .copy {
      border-top: 1px solid rgba(255,255,255,.1);
      padding-top: 16px;
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    @media (max-width: 1279px) {
      .hero h1, .hero-title { font-size: 40px; }
      .timeline { grid-template-columns: repeat(3, 1fr); }
      .timeline::before { display: none; }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 1023px) {
      .nav-links { display: none; }
      .menu-toggle, .phone-fab { display: inline-flex; }
      .nav-cta .btn { display: none; }
      .hero-inner, .pains, .split, .dark-band .container, .story, .story.reverse, .scene-board, .scene-panel.is-active, .compliance, .cta-box, .footer-grid {
        grid-template-columns: 1fr;
      }
      .story.reverse .story-copy { order: 0; }
      .hero-slide img { clip-path: none; }
      .hero-inner { align-items: end; padding: 72px 0 88px; }
      .hero-track, .hero-inner { min-height: 560px; }
      .cards-6, .products, .dash, .stats-grid { grid-template-columns: repeat(2, 1fr); }
      .quote:nth-child(even) { transform: none; }
      .section { padding: 80px 0; }
    }
    @media (max-width: 767px) {
      .topbar-right { display: none; }
      .hero h1, .hero-title { font-size: 30px; max-width: none; }
      .hero-track, .hero-inner { min-height: 640px; }
      .cards-6, .products, .dash, .stats-grid, .reviews, .news-grid, .timeline, .form, .spec-board {
        grid-template-columns: 1fr;
      }
      .stat + .stat::before { display: none; }
      .pain-item { grid-template-columns: 72px 1fr; }
      .pain-stage { min-height: 280px; }
      .split-visual img, .story img, .compliance img { height: 260px; }
      .cta-box { padding: 28px 20px; }
      .section { padding: 64px 0; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      h2 { font-size: 26px; }
    }
    @media (max-width: 520px) {
      .container, .nav-main, .topbar-inner { width: min(100% - 28px, var(--container)); }
      .hero h1, .hero-title { font-size: 28px; }
      .kpi-row { gap: 12px; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-ctrl { right: 14px; bottom: 16px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        transition: none !important;
        animation: none !important;
      }
    }

/* roulang page: index */
:root {
      --c-primary: #2F73B3;
      --c-primary-ink: #1F4E7A;
      --c-accent: #1A8F86;
      --c-bg: #F4F7FB;
      --c-surface: #FFFFFF;
      --c-tint: #E8F1F8;
      --c-dark: #173044;
      --c-text: #1C2B36;
      --c-muted: #5B6C79;
      --c-line: #D9E3EE;
      --c-card-line: #E7EEF5;
      --shadow-card: 0 10px 28px rgba(23,48,68,.08);
      --shadow-hover: 0 14px 32px rgba(23,48,68,.12);
      --r: 10px;
      --r-btn: 8px;
      --container: 1240px;
      --pad-x: 24px;
      --header-lower: 72px;
      --font: "Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.75;
      color: var(--c-text);
      background: var(--c-bg);
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--c-primary); text-decoration: none; }
    a:hover { color: var(--c-primary-ink); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, p { margin: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: 2px solid var(--c-primary); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 8px; background: #fff; color: var(--c-primary-ink);
      padding: 8px 14px; z-index: 10000; border-radius: var(--r-btn);
    }
    .skip:focus { left: 8px; }
    .container { width: min(var(--container), calc(100% - var(--pad-x) * 2)); margin: 0 auto; }
    .topbar {
      background: var(--c-primary-ink);
      color: #E7F0F7;
      font-size: 13px;
      line-height: 1.4;
      transition: transform .28s ease, opacity .28s ease;
    }
    .topbar.is-hidden { transform: translateY(-100%); opacity: 0; pointer-events: none; }
    .topbar-inner {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
      min-height: 40px; padding: 6px 0;
    }
    .topbar a { color: #F3F8FC; }
    .topbar a:hover { color: #fff; }
    .topbar-left, .topbar-right { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
    .trust {
      display: inline-flex; align-items: center; gap: 6px;
      border: 1px solid rgba(255,255,255,.22); padding: 3px 8px; border-radius: 4px; color: #D7E8F4;
    }
    .trust i {
      width: 7px; height: 7px; border-radius: 50%; background: var(--c-accent); display: inline-block;
    }
    .phone-fab { display: none; }
    .site-header { position: relative; z-index: 50; }
    .site-nav {
      background: var(--c-surface);
      border-bottom: 1px solid var(--c-line);
      transition: box-shadow .2s ease;
    }
    .site-nav.is-sticky {
      position: sticky; top: 0; z-index: 80;
      box-shadow: 0 8px 24px rgba(23,48,68,.08);
    }
    .nav-inner {
      display: grid; grid-template-columns: auto 1fr auto;
      align-items: center; min-height: var(--header-lower); gap: 20px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: var(--c-primary-ink); font-weight: 700;
    }
    .logo-mark {
      width: 36px; height: 36px; border-radius: 6px;
      background:
        linear-gradient(180deg, #3C86C6 0 8px, transparent 8px 12px, #2F73B3 12px 20px, transparent 20px 24px, #1F4E7A 24px),
        repeating-linear-gradient(90deg, #E8F1F8 0 3px, #2F73B3 3px 4px);
      box-shadow: inset 0 0 0 1px rgba(31,78,122,.25);
      flex: 0 0 36px;
    }
    .logo-text { font-size: 18px; letter-spacing: .02em; line-height: 1.2; }
    .logo-sub { display: block; font-size: 11px; font-weight: 500; color: var(--c-muted); }
    .menu { display: flex; justify-content: center; gap: 6px; }
    .menu a {
      color: var(--c-text); font-size: 15px; padding: 10px 12px; border-radius: 6px; position: relative;
    }
    .menu a:hover { color: var(--c-primary-ink); background: var(--c-tint); }
    .menu a.is-active { color: var(--c-primary-ink); font-weight: 600; }
    .menu a.is-active::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px; height: 2px; background: var(--c-primary); border-radius: 2px;
    }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: var(--r-btn); font-weight: 600;
      border: 1px solid transparent; transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
    }
    .btn-primary { background: var(--c-primary); color: #fff; }
    .btn-primary:hover { background: var(--c-primary-ink); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .btn-primary:active { transform: translateY(0); }
    .btn-ghost { background: transparent; color: var(--c-primary-ink); border-color: var(--c-primary); }
    .btn-ghost:hover { background: var(--c-tint); transform: translateY(-2px); }
    .btn-light { background: #fff; color: var(--c-primary-ink); }
    .btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .hamburger {
      display: none; width: 44px; height: 44px; border-radius: 8px; border: 1px solid var(--c-line);
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .hamburger span { display: block; width: 18px; height: 2px; background: var(--c-primary-ink); }
    .drawer {
      position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px); background: #fff; z-index: 90;
      transform: translateX(100%); transition: transform .28s ease; box-shadow: -12px 0 32px rgba(23,48,68,.12);
      display: flex; flex-direction: column; padding: 20px;
    }
    .drawer.is-open { transform: translateX(0); }
    .drawer-mask {
      position: fixed; inset: 0; background: rgba(23,48,68,.35); z-index: 85; opacity: 0; pointer-events: none; transition: opacity .28s;
    }
    .drawer-mask.is-open { opacity: 1; pointer-events: auto; }
    .drawer a { display: block; padding: 12px 8px; min-height: 44px; color: var(--c-text); border-bottom: 1px solid var(--c-line); }
    .drawer .btn { width: 100%; margin-top: 16px; }
    .drawer-close { align-self: flex-end; width: 44px; height: 44px; border: 1px solid var(--c-line); border-radius: 8px; }
    main { overflow: hidden; }
    .section { padding: 108px 0; position: relative; }
    .section-tint { background: var(--c-tint); }
    .section-surface { background: var(--c-surface); }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px; color: var(--c-primary); font-size: 13px; font-weight: 700; letter-spacing: .08em;
      margin-bottom: 12px;
    }
    .kicker::before { content: ""; width: 18px; height: 2px; background: var(--c-accent); }
    .h2 { font-size: 30px; line-height: 1.3; color: var(--c-primary-ink); font-weight: 700; max-width: 18em; }
    .lead { margin-top: 16px; color: var(--c-muted); max-width: 46em; font-size: 16px; }
    .hero {
      position: relative; background: var(--c-dark); color: #fff; min-height: clamp(520px, 68vw, 720px);
      aspect-ratio: 16/6.4; max-height: 760px;
    }
    .hero-slides { position: relative; height: 100%; min-height: inherit; }
    .hero-slide {
      position: absolute; inset: 0; display: grid; grid-template-columns: 5fr 7fr; opacity: 0; pointer-events: none;
      transition: opacity .6s ease;
    }
    .hero-slide.is-active { opacity: 1; pointer-events: auto; z-index: 2; }
    .hero-copy {
      position: relative; z-index: 3; padding: 72px 0 72px 0; display: flex; align-items: flex-end;
      background: linear-gradient(90deg, rgba(23,48,68,.92) 0%, rgba(47,115,179,.55) 72%, rgba(47,115,179,.12) 100%);
    }
    .hero-copy .container { margin-left: max(24px, calc((100vw - var(--container)) / 2)); margin-right: 0; width: auto; max-width: 560px; padding-right: 24px; }
    .hero-brand { font-size: 14px; font-weight: 700; color: #D6E7F5; margin-bottom: 14px; }
    .hero h1, .hero-title {
      font-size: clamp(28px, 4vw, 46px); line-height: 1.25; font-weight: 700; max-width: 12em; text-align: left;
    }
    .hero-desc { margin-top: 18px; font-size: 16px; line-height: 1.8; color: #E6EEF5; max-width: 36em; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
    .hero-kpis { display: flex; gap: 22px; margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.18); }
    .hero-kpis b { display: block; font-variant-numeric: tabular-nums; font-size: 22px; font-weight: 700; }
    .hero-kpis span { font-size: 13px; color: #C9D8E4; }
    .hero-media {
      position: relative; overflow: hidden;
      clip-path: polygon(12% 0, 100% 0, 100% 100%, 0 100%);
      transform: translate(-6%, 0) skewX(-4deg);
    }
    .hero-media img {
      width: 120%; height: 100%; object-fit: cover; transform: skewX(4deg) translateX(-4%);
      filter: saturate(1.05) contrast(1.05);
    }
    .hero-media::after {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(47,115,179,.4), rgba(23,48,68,.28) 55%, transparent);
      pointer-events: none;
    }
    .hero-nav {
      position: absolute; inset: auto 24px 24px auto; z-index: 5; display: flex; gap: 8px;
    }
    .hero-btn, .hero-dot {
      width: 44px; height: 44px; border-radius: 8px; border: 1px solid rgba(255,255,255,.35);
      background: rgba(23,48,68,.35); color: #fff; display: grid; place-items: center;
    }
    .hero-btn:hover { background: var(--c-primary); }
    .hero-dots { position: absolute; left: max(24px, calc((100vw - var(--container)) / 2)); bottom: 24px; z-index: 5; display: flex; gap: 8px; }
    .hero-dot { width: 44px; height: 10px; border-radius: 99px; background: rgba(255,255,255,.35); }
    .hero-dot.is-active { background: #fff; }
    .pain-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 40px; align-items: stretch; margin-top: 40px; }
    .pain-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .pain-item {
      background: var(--c-surface); border: 1px solid var(--c-card-line); border-radius: var(--r);
      box-shadow: var(--shadow-card); overflow: hidden; display: flex; flex-direction: column;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .pain-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .pain-item img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .pain-item div { padding: 16px 16px 18px; }
    .pain-item h3 { font-size: 18px; line-height: 1.4; color: var(--c-primary-ink); }
    .pain-item p { margin-top: 8px; color: var(--c-muted); font-size: 14px; }
    .pain-stage {
      position: relative; border-radius: var(--r); overflow: hidden; min-height: 100%;
      box-shadow: var(--shadow-card); border: 1px solid var(--c-card-line);
    }
    .pain-stage img { width: 100%; height: 100%; object-fit: cover; min-height: 460px; }
    .pain-stage figcaption {
      position: absolute; left: 20px; right: 20px; bottom: 20px; background: rgba(23,48,68,.78);
      color: #fff; padding: 16px 18px; border-radius: 8px;
    }
    .split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
    .split img {
      width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: var(--r);
      box-shadow: var(--shadow-card); border: 1px solid var(--c-card-line);
    }
    .spec {
      margin-top: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
    }
    .spec li {
      background: var(--c-tint); border-radius: 8px; padding: 12px 14px; font-size: 14px; color: var(--c-text);
      border: 1px solid var(--c-line);
    }
    .spec b { display: block; color: var(--c-primary-ink); font-size: 13px; }
    .timeline {
      margin-top: 48px; display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 0; right: 0; top: 27px; height: 2px;
      background: repeating-linear-gradient(90deg, var(--c-primary) 0 18px, transparent 18px 28px);
    }
    .step {
      background: var(--c-surface); border: 1px solid var(--c-card-line); border-radius: var(--r);
      box-shadow: var(--shadow-card); padding: 22px 16px 18px; position: relative;
    }
    .step-no {
      width: 36px; height: 36px; border-radius: 50%; background: var(--c-accent); color: #fff;
      display: grid; place-items: center; font-weight: 700; font-variant-numeric: tabular-nums; margin-bottom: 12px;
    }
    .step h3 { font-size: 17px; color: var(--c-primary-ink); line-height: 1.4; }
    .step p { margin-top: 8px; font-size: 14px; color: var(--c-muted); }
    .cards-6 { margin-top: 40px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .card {
      background: var(--c-surface); border: 1px solid var(--c-card-line); border-radius: var(--r);
      box-shadow: var(--shadow-card); padding: 24px; transition: transform .2s ease, box-shadow .2s ease;
    }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .icon-grid {
      width: 44px; height: 44px; border-radius: 8px; background:
        repeating-linear-gradient(90deg, var(--c-tint) 0 6px, #d3e2ef 6px 7px),
        repeating-linear-gradient(0deg, transparent 0 6px, rgba(47,115,179,.18) 6px 7px);
      border: 1px solid var(--c-line); margin-bottom: 14px;
    }
    .card h3 { font-size: 20px; line-height: 1.35; color: var(--c-primary-ink); }
    .card p { margin-top: 10px; color: var(--c-muted); font-size: 15px; }
    .products { margin-top: 40px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .product {
      background: var(--c-surface); border: 1px solid var(--c-card-line); border-radius: var(--r);
      box-shadow: var(--shadow-card); overflow: hidden; display: flex; flex-direction: column;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .product:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .product img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .product-body { padding: 18px 18px 8px; flex: 1; }
    .product h3 { font-size: 20px; color: var(--c-primary-ink); }
    .product p { margin-top: 8px; color: var(--c-muted); font-size: 14px; }
    .param-bar {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--c-line);
      border-top: 1px solid var(--c-line);
    }
    .param-bar span { background: var(--c-tint); padding: 10px 8px; font-size: 12px; color: var(--c-primary-ink); text-align: center; }
    .param-bar b { display: block; font-weight: 500; color: var(--c-muted); font-size: 11px; }
    .badge {
      display: inline-block; background: var(--c-tint); color: var(--c-primary); font-size: 12px; padding: 3px 8px;
      border-radius: 4px; margin-bottom: 8px;
    }
    .dark-band {
      background: var(--c-dark) url("/assets/images/7fc1eb22e4915bdf.jpg") center/cover no-repeat;
      color: #fff; padding: 108px 0; position: relative;
    }
    .dark-band::before {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(23,48,68,.92), rgba(23,48,68,.78) 48%, rgba(23,48,68,.55)),
        repeating-linear-gradient(0deg, transparent 0 11px, rgba(255,255,255,.04) 11px 12px);
    }
    .dark-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center; }
    .dark-quote { font-size: 28px; line-height: 1.4; font-weight: 700; max-width: 14em; }
    .dark-quote span { display: block; margin-top: 14px; font-size: 16px; font-weight: 400; color: #C9D7E2; }
    .case-slice { display: grid; gap: 16px; }
    .case-card {
      background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 10px; padding: 18px 20px;
    }
    .case-card h3 { font-size: 18px; }
    .case-card p { margin-top: 8px; color: #D5E1EA; font-size: 14px; }
    .stats {
      background: linear-gradient(180deg, #F4F7FB, #E8F1F8); padding: 72px 0;
    }
    .stats-row {
      display: grid; grid-template-columns: repeat(4, 1fr); background: var(--c-surface);
      border: 1px solid var(--c-line); border-radius: var(--r); box-shadow: var(--shadow-card); overflow: hidden;
    }
    .stat {
      padding: 36px 20px; text-align: center; border-right: 1px solid var(--c-line);
    }
    .stat:last-child { border-right: 0; }
    .stat b {
      display: block; font-size: 40px; line-height: 1.1; color: var(--c-primary); font-variant-numeric: tabular-nums; font-weight: 700;
    }
    .stat span { display: block; margin-top: 8px; color: var(--c-muted); font-size: 14px; }
    .story { display: grid; grid-template-columns: 7fr 5fr; gap: 48px; align-items: center; }
    .story + .story { margin-top: 56px; }
    .story.is-reverse { grid-template-columns: 5fr 7fr; }
    .story.is-reverse .story-copy { order: 2; }
    .story img {
      width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: var(--r);
      box-shadow: var(--shadow-card); border: 1px solid var(--c-card-line);
    }
    .story h3 { font-size: 22px; color: var(--c-primary-ink); margin-top: 8px; }
    .story p { margin-top: 12px; color: var(--c-muted); }
    .reviews { display: grid; grid-template-columns: 1.15fr .85fr; gap: 20px; margin-top: 36px; }
    .quote {
      background: var(--c-surface); border: 1px solid var(--c-card-line); border-radius: var(--r);
      box-shadow: var(--shadow-card); padding: 24px 24px 20px; border-left: 4px solid var(--c-primary);
    }
    .quote p { color: var(--c-text); }
    .quote footer { margin-top: 16px; color: var(--c-muted); font-size: 13px; }
    .quote footer b { color: var(--c-primary-ink); display: block; font-size: 14px; }
    .scene-board { margin-top: 36px; display: grid; grid-template-columns: 220px 1fr; gap: 24px; min-height: 360px; }
    .scene-index { display: flex; flex-direction: column; gap: 8px; }
    .scene-btn {
      text-align: left; min-height: 48px; padding: 10px 14px; border-radius: 8px; border: 1px solid var(--c-line);
      background: #fff; color: var(--c-text);
    }
    .scene-btn.is-active, .scene-btn:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
    .scene-panel {
      background: var(--c-surface); border: 1px solid var(--c-card-line); border-radius: var(--r);
      box-shadow: var(--shadow-card); overflow: hidden; display: none; grid-template-columns: 1.1fr .9fr;
    }
    .scene-panel.is-active { display: grid; }
    .scene-panel img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
    .scene-panel div { padding: 28px; }
    .scene-panel h3 { font-size: 22px; color: var(--c-primary-ink); }
    .check { margin-top: 12px; }
    .check li { position: relative; padding-left: 18px; margin: 8px 0; color: var(--c-muted); }
    .check li::before { content: ""; position: absolute; left: 0; top: 10px; width: 8px; height: 8px; background: var(--c-accent); border-radius: 1px; }
    .news-grid { margin-top: 36px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .news {
      background: #fff; border: 1px solid var(--c-card-line); border-radius: var(--r); box-shadow: var(--shadow-card);
      overflow: hidden; display: flex; flex-direction: column; transition: transform .2s ease, box-shadow .2s ease;
    }
    .news:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .news img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .news div { padding: 16px; }
    .news time { font-size: 12px; color: var(--c-muted); }
    .news h3 { font-size: 17px; line-height: 1.4; color: var(--c-primary-ink); margin-top: 6px; }
    .news p { margin-top: 8px; font-size: 14px; color: var(--c-muted); }
    .more-link { display: inline-flex; margin-top: 22px; min-height: 44px; align-items: center; font-weight: 600; }
    .dash { margin-top: 36px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
    .meter {
      background: #fff; border: 1px solid var(--c-card-line); border-radius: var(--r); box-shadow: var(--shadow-card);
      padding: 18px 18px 16px;
    }
    .meter b { display: block; font-size: 28px; color: var(--c-primary-ink); font-variant-numeric: tabular-nums; font-weight: 700; }
    .meter span { color: var(--c-muted); font-size: 13px; }
    .bar { height: 6px; background: var(--c-tint); border-radius: 99px; margin-top: 12px; overflow: hidden; }
    .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--c-accent), var(--c-primary)); border-radius: 99px; }
    .faq { margin-top: 28px; display: grid; gap: 10px; }
    .faq-item { background: #fff; border: 1px solid var(--c-card-line); border-radius: var(--r); box-shadow: var(--shadow-card); overflow: hidden; }
    .faq-q {
      width: 100%; text-align: left; min-height: 56px; padding: 14px 52px 14px 18px; position: relative;
      font-weight: 650; color: var(--c-primary-ink); background: #fff;
    }
    .faq-q::after {
      content: ""; position: absolute; right: 18px; top: 50%; width: 10px; height: 10px;
      border-right: 2px solid var(--c-primary); border-bottom: 2px solid var(--c-primary);
      transform: translateY(-70%) rotate(45deg); transition: transform .2s ease;
    }
    .faq-item.is-open .faq-q { background: var(--c-tint); }
    .faq-item.is-open .faq-q::after { transform: translateY(-20%) rotate(225deg); }
    .faq-a { display: none; padding: 4px 18px 16px; color: var(--c-muted); background: var(--c-tint); }
    .faq-item.is-open .faq-a { display: block; }
    .cta-band {
      background: var(--c-tint); padding: 88px 0 100px; border-top: 1px solid var(--c-line);
    }
    .cta-box {
      display: grid; grid-template-columns: .8fr 1.2fr; gap: 36px; background: #fff;
      border: 1px solid var(--c-card-line); border-radius: var(--r); box-shadow: var(--shadow-card); padding: 36px;
    }
    .form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
    .form .full { grid-column: 1 / -1; }
    label { display: block; font-size: 13px; color: var(--c-primary-ink); margin-bottom: 6px; font-weight: 600; }
    input, select, textarea {
      width: 100%; min-height: 46px; border: 1px solid var(--c-line); border-radius: 8px; padding: 8px 12px; background: #fff; color: var(--c-text);
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--c-primary); outline: none; box-shadow: 0 0 0 3px rgba(47,115,179,.15); }
    .err { color: #B42318; font-size: 12px; margin-top: 4px; }
    .ok {
      grid-column: 1 / -1; background: rgba(26,143,134,.1); color: var(--c-accent); border: 1px solid rgba(26,143,134,.25);
      padding: 12px 14px; border-radius: 8px;
    }
    .site-footer { background: var(--c-dark); color: #C9D7E2; padding: 64px 0 28px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr .9fr .9fr 1fr; gap: 28px; }
    .site-footer a { color: #E7F0F7; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer p, .site-footer li { font-size: 14px; line-height: 1.8; }
    .foot-logo { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 10px; }
    .copy { margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13px; color: #9FB0BD; }
    @media (max-width: 1280px) {
      .hero { aspect-ratio: 16/7; }
      .h2 { font-size: 28px; }
    }
    @media (max-width: 1024px) {
      .section { padding: 84px 0; }
      .menu { display: none; }
      .hamburger { display: inline-flex; }
      .nav-cta .btn { display: none; }
      .cards-6, .products, .news-grid { grid-template-columns: repeat(2, 1fr); }
      .timeline { grid-template-columns: 1fr 1fr; }
      .timeline::before { display: none; }
      .split, .pain-grid, .dark-grid, .story, .story.is-reverse, .reviews, .scene-board, .cta-box, .foot-grid, .hero-slide {
        grid-template-columns: 1fr;
      }
      .story.is-reverse .story-copy { order: 0; }
      .hero { aspect-ratio: auto; min-height: 640px; max-height: none; }
      .hero-copy { background: linear-gradient(180deg, rgba(23,48,68,.2), rgba(23,48,68,.88) 42%, rgba(23,48,68,.94)); align-items: flex-end; padding: 40px 0 92px; }
      .hero-copy .container { max-width: none; margin: 0 auto; padding: 0 24px 0; }
      .hero-media { clip-path: none; transform: none; position: absolute; inset: 0; }
      .hero-media img { width: 100%; transform: none; }
      .dash { grid-template-columns: 1fr 1fr; }
      .scene-panel.is-active { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .topbar-right, .topbar-left span.hide-sm { display: none; }
      .phone-fab { display: inline-flex; color: #fff; min-width: 44px; min-height: 32px; align-items: center; }
      .section { padding: 64px 0; }
      .h2 { font-size: 26px; }
      .hero h1, .hero-title { font-size: 30px; }
      .pain-list, .cards-6, .products, .news-grid, .stats-row, .form, .spec { grid-template-columns: 1fr; }
      .stat { border-right: 0; border-bottom: 1px solid var(--c-line); }
      .hero { aspect-ratio: 4/5; min-height: 560px; }
      .timeline { grid-template-columns: 1fr; }
      .foot-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 520px) {
      :root { --pad-x: 16px; }
      .hero-kpis { flex-wrap: wrap; }
      .hero-actions .btn, .btn { width: 100%; }
      .dash { grid-template-columns: 1fr; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition: none !important; animation: none !important; }
    }