/* roulang page: index */
:root {
      --blue: #2F86C7;
      --blue-600: #2776B2;
      --blue-700: #1E679C;
      --blue-50: #EAF4FB;
      --blue-100: #D5EAF6;
      --moss: #4E8C6A;
      --moss-50: #E7F4EC;
      --moss-700: #2F6A4A;
      --ink: #2C3338;
      --muted: #5A6570;
      --faint: #7A868F;
      --line: #E6EEF5;
      --line-strong: #D5E1EC;
      --bg: #F5F8FB;
      --bg-alt: #EEF3F8;
      --white: #FFFFFF;
      --dark: #2B3238;
      --dark-2: #343C44;
      --danger: #C45C5C;
      --danger-bg: #FBECEC;
      --radius: 14px;
      --radius-sm: 10px;
      --shadow: 0 8px 24px rgba(28, 49, 68, 0.06), 0 2px 6px rgba(28, 49, 68, 0.04);
      --shadow-hover: 0 14px 32px rgba(28, 49, 68, 0.10), 0 4px 10px rgba(28, 49, 68, 0.06);
      --header-top: 40px;
      --nav-h: 72px;
      --container: 1220px;
      --space: 104px;
      --ease: 180ms ease;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      color: var(--ink);
      background: var(--bg);
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--blue); text-decoration: none; transition: color var(--ease), background var(--ease), transform var(--ease), box-shadow var(--ease), border-color var(--ease); }
    a:hover { color: var(--blue-700); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4, p { margin: 0; }
    ul, ol, dl { margin: 0; padding: 0; }
    :focus { outline: none; }
    :focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 8px;
      background: var(--white); color: var(--ink); padding: 8px 12px; z-index: 100;
    }
    .skip:focus { left: 8px; }
    .container {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }
    .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
    .site-header { position: relative; z-index: 50; }
    .topbar {
      background: var(--blue-50);
      color: var(--muted);
      font-size: 13px;
      min-height: var(--header-top);
      display: flex;
      align-items: center;
    }
    .topbar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
      white-space: nowrap;
    }
    .topbar-right { display: flex; align-items: center; gap: 18px; }
    .topbar a { color: var(--ink); min-height: 32px; display: inline-flex; align-items: center; }
    .topbar a:hover { color: var(--blue-700); }
    .navbar {
      background: var(--white);
      border-bottom: 1px solid var(--line);
      min-height: var(--nav-h);
      transition: box-shadow var(--ease), min-height var(--ease);
    }
    .navbar.is-fixed {
      position: sticky;
      top: 0;
      z-index: 60;
      box-shadow: 0 8px 20px rgba(28, 49, 68, 0.06);
      min-height: 64px;
    }
    .navbar-inner {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
      min-height: inherit;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--ink);
      flex-shrink: 0;
    }
    .logo:hover { color: var(--ink); }
    .logo-mark {
      width: 36px; height: 36px; border-radius: 10px;
      background: linear-gradient(180deg, #3B93D1 0%, #2F86C7 100%);
      display: grid; place-items: center;
      box-shadow: 0 6px 14px rgba(47, 134, 199, 0.28);
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text strong { font-size: 16px; font-weight: 700; }
    .logo-text span { font-size: 12px; color: var(--muted); font-weight: 500; }
    .nav-links { display: flex; align-items: center; gap: 4px; }
    .nav-links a {
      color: var(--ink);
      font-size: 15px;
      font-weight: 500;
      padding: 10px 12px;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      border-radius: 10px;
    }
    .nav-links a:hover { background: var(--blue-50); color: var(--blue-700); }
    .nav-links a[aria-current="true"] {
      color: var(--blue-700);
      background: var(--blue-50);
    }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .menu-toggle {
      display: none;
      width: 44px; height: 44px;
      border: 1px solid var(--line);
      background: var(--white);
      border-radius: 12px;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
    }
    .menu-toggle span {
      display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 10px 18px;
      border-radius: 12px;
      font-weight: 600;
      border: 1px solid transparent;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
      letter-spacing: 0.01em;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn-primary {
      background: var(--blue);
      color: var(--white);
      box-shadow: 0 8px 18px rgba(47, 134, 199, 0.22);
    }
    .btn-primary:hover { background: #3390D2; color: var(--white); box-shadow: 0 12px 24px rgba(47, 134, 199, 0.28); }
    .btn-ghost {
      background: transparent;
      color: var(--white);
      border-color: rgba(255,255,255,.55);
    }
    .btn-ghost:hover { background: rgba(255,255,255,.12); color: var(--white); }
    .btn-line {
      background: var(--white);
      color: var(--blue-700);
      border-color: var(--blue);
    }
    .btn-line:hover { background: var(--blue-50); color: var(--blue-700); }
    .btn-text {
      background: transparent;
      color: var(--blue-700);
      padding-left: 0;
      padding-right: 0;
      box-shadow: none;
      min-height: 44px;
    }
    .btn-text:hover { color: var(--blue); transform: translateX(2px); }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 2px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      background: var(--blue-50);
      color: var(--blue-700);
    }
    .badge-moss { background: var(--moss-50); color: var(--moss-700); }
    .badge-dark {
      background: rgba(255,255,255,.14);
      color: #fff;
      border: 1px solid rgba(255,255,255,.18);
    }
    .section { padding: var(--space) 0; scroll-margin-top: 84px; }
    .section-alt { background: var(--bg-alt); }
    .section-white { background: var(--white); }
    .kicker {
      font-size: 13px;
      font-weight: 600;
      color: var(--blue-700);
      letter-spacing: 0.06em;
      margin-bottom: 10px;
    }
    .h2 {
      font-size: 32px;
      line-height: 1.28;
      font-weight: 700;
      letter-spacing: -0.02em;
      max-width: 18em;
    }
    .lead {
      margin-top: 16px;
      color: var(--muted);
      font-size: 16px;
      max-width: 46em;
    }
    .hero {
      position: relative;
      min-height: calc(100vh - 112px);
      color: #fff;
      overflow: hidden;
      background: var(--dark);
    }
    .hero-slides { position: absolute; inset: 0; }
    .hero-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      visibility: hidden;
      transition: opacity 480ms ease;
    }
    .hero-slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
    .hero-slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: saturate(0.92);
    }
    .hero-mask {
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(32,38,44,.86) 0%, rgba(32,38,44,.52) 46%, rgba(32,38,44,.22) 100%),
        linear-gradient(0deg, rgba(24,29,34,.78) 0%, rgba(24,29,34,.08) 48%);
    }
    .hero-grid {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size: 56px 56px;
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
      min-height: inherit;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 72px 0 92px;
    }
    .hero-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
    .hero-heading {
      font-size: 46px;
      line-height: 1.18;
      font-weight: 700;
      max-width: 12em;
      letter-spacing: -0.03em;
    }
    .hero-intro {
      margin-top: 18px;
      max-width: 42em;
      font-size: 16px;
      line-height: 1.8;
      color: rgba(255,255,255,.88);
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-index {
      position: absolute;
      right: max(24px, calc((100% - var(--container)) / 2));
      top: 36px;
      z-index: 3;
      font-size: 13px;
      letter-spacing: 0.12em;
      color: rgba(255,255,255,.8);
    }
    .hero-nav {
      position: absolute;
      left: 0; right: 0; bottom: 24px;
      z-index: 3;
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }
    .hero-arrows { display: flex; gap: 8px; }
    .icon-btn {
      width: 44px; height: 44px;
      border-radius: 12px;
      border: 1px solid rgba(255,255,255,.28);
      background: rgba(255,255,255,.08);
      color: #fff;
      display: grid;
      place-items: center;
    }
    .icon-btn:hover { background: rgba(255,255,255,.16); }
    .hero-dots { display: flex; gap: 8px; }
    .hero-dots button {
      width: 10px; height: 10px; padding: 0;
      border-radius: 99px;
      border: 0;
      background: rgba(255,255,255,.38);
      min-height: 10px;
    }
    .hero-dots button.is-active { width: 28px; background: #fff; }
    .hero-dots button:focus-visible { outline-offset: 4px; }
    .split {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 56px;
      align-items: start;
    }
    .pain-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .pain-item {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 22px 22px 20px;
      box-shadow: var(--shadow);
    }
    .pain-item:hover { border-color: rgba(47,134,199,.28); box-shadow: var(--shadow-hover); }
    .pain-item h3 { font-size: 18px; margin: 10px 0 8px; }
    .pain-item p { color: var(--muted); font-size: 15px; }
    .ico {
      width: 40px; height: 40px; border-radius: 12px;
      display: grid; place-items: center;
      background: var(--blue-50); color: var(--blue-700);
    }
    .media-split {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 48px;
      align-items: center;
    }
    .media-frame {
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-hover);
      border: 1px solid var(--line);
      background: var(--white);
    }
    .media-frame img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .check-list { margin-top: 22px; display: grid; gap: 12px; }
    .check-list li {
      list-style: none;
      padding-left: 28px;
      position: relative;
      color: var(--muted);
      font-size: 15px;
    }
    .check-list li::before {
      content: "";
      position: absolute;
      left: 0; top: 9px;
      width: 16px; height: 16px;
      border-radius: 50%;
      background: var(--moss-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%232F6A4A' stroke-width='2' d='M3.5 8.2 6.4 11l6-6'/%3E%3C/svg%3E") center/12px no-repeat;
    }
    .std-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 8px; }
    .timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      position: relative;
    }
    .step {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 22px 20px;
      box-shadow: var(--shadow);
      position: relative;
    }
    .step:hover { border-color: rgba(47,134,199,.28); box-shadow: var(--shadow-hover); transform: translateY(-2px); transition: var(--ease); }
    .step-no {
      width: 36px; height: 36px; border-radius: 10px;
      background: var(--blue);
      color: #fff;
      display: grid; place-items: center;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .step h3 { font-size: 17px; margin-bottom: 8px; }
    .step p { color: var(--muted); font-size: 14px; line-height: 1.7; }
    .step .out {
      margin-top: 12px;
      font-size: 13px;
      color: var(--moss-700);
      background: var(--moss-50);
      display: inline-flex;
      padding: 4px 10px;
      border-radius: 999px;
      font-weight: 600;
    }
    .cap-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: rgba(47,134,199,.25); }
    .cap-card { padding: 26px; min-height: 100%; }
    .cap-card.wide { grid-column: span 2; display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; align-items: center; }
    .metric-block {
      background: var(--bg);
      border-radius: 12px;
      padding: 18px;
      border: 1px solid var(--line);
    }
    .metric-block .n { font-size: 36px; font-weight: 700; color: var(--blue-700); line-height: 1.1; }
    .metric-block .u { font-size: 13px; color: var(--muted); margin-top: 6px; }
    .cap-card h3 { font-size: 20px; margin: 8px 0 10px; }
    .cap-card p { color: var(--muted); font-size: 15px; }
    .formula {
      margin-top: 14px;
      font-size: 13px;
      color: var(--ink);
      background: var(--blue-50);
      border-radius: 10px;
      padding: 10px 12px;
      font-weight: 600;
    }
    .mod-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .mod-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .mod-body { padding: 22px; }
    .mod-body h3 { font-size: 20px; margin: 10px 0; }
    .mod-body p, .mod-body li { color: var(--muted); font-size: 15px; }
    .mod-body ul { margin: 12px 0 16px; display: grid; gap: 8px; }
    .mod-body li { list-style: none; padding-left: 14px; position: relative; }
    .mod-body li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--blue); position: absolute; left: 0; top: 9px; }
    .tags { display: flex; flex-wrap: wrap; gap: 6px; }
    .dark-band {
      background: var(--dark);
      color: #eef3f7;
      position: relative;
      overflow: hidden;
    }
    .dark-band::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
      background-size: 48px 48px;
      pointer-events: none;
    }
    .dark-inner {
      position: relative;
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: 48px;
      align-items: center;
    }
    .dark-band .h2 { color: #fff; }
    .dark-band .lead { color: rgba(255,255,255,.78); }
    .case-slice { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
    .case-item { padding: 8px 28px; }
    .case-item + .case-item { border-left: 1px solid rgba(255,255,255,.12); }
    .case-item h3 { font-size: 18px; margin-bottom: 10px; color: #fff; }
    .case-item p { color: rgba(255,255,255,.76); font-size: 15px; }
    .case-item .kpi { margin-top: 12px; color: #9ad0b0; font-weight: 600; font-size: 14px; }
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .scene {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow);
      min-height: 100%;
    }
    .scene:hover { border-color: rgba(47,134,199,.28); box-shadow: var(--shadow-hover); }
    .scene h3 { font-size: 18px; margin-bottom: 10px; }
    .scene p { color: var(--muted); font-size: 15px; }
    .scene .prod { margin-top: 12px; font-size: 13px; font-weight: 600; color: var(--blue-700); }
    .story-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr;
      gap: 24px;
    }
    .story-main {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .story-main img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
    .story-copy { padding: 28px; }
    .story-copy h3 { font-size: 22px; margin: 8px 0 12px; }
    .story-copy p { color: var(--muted); font-size: 15px; }
    .role { font-size: 13px; color: var(--blue-700); font-weight: 600; }
    .side-cards { display: grid; gap: 16px; }
    .side-card { padding: 20px; }
    .stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .stat {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 24px 22px;
      box-shadow: var(--shadow);
    }
    .stat .n { font-size: 34px; font-weight: 700; color: var(--blue-700); line-height: 1.1; }
    .stat .l { margin-top: 8px; font-weight: 650; }
    .stat .note { margin-top: 8px; font-size: 13px; color: var(--muted); }
    .review-track {
      display: grid;
      grid-template-columns: 1.15fr 0.9fr 1fr;
      gap: 20px;
      align-items: stretch;
    }
    .review { padding: 26px; }
    .review p { font-size: 16px; }
    .review-foot { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
    .avatar {
      width: 44px; height: 44px; border-radius: 50%;
      display: grid; place-items: center;
      background: var(--blue-100); color: var(--blue-700); font-weight: 700;
    }
    .review:nth-child(2) { margin-top: 28px; }
    .kv {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .kv div {
      padding: 22px 24px;
      border-bottom: 1px solid var(--line);
      border-right: 1px solid var(--line);
    }
    .kv div:nth-child(2n) { border-right: 0; }
    .kv dt { font-weight: 700; font-size: 15px; margin-bottom: 6px; }
    .kv dd { color: var(--muted); font-size: 15px; }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .news-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .news-card .body { padding: 16px 18px 20px; }
    .news-card time { font-size: 12px; color: var(--faint); font-variant-numeric: tabular-nums; }
    .news-card h3 { font-size: 16px; margin: 6px 0 8px; line-height: 1.45; }
    .news-card p { font-size: 14px; color: var(--muted); }
    .sec-head {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      align-items: end;
      margin-bottom: 36px;
    }
    .faq-list { display: grid; gap: 10px; }
    .faq-item {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 14px;
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .faq-item button {
      width: 100%;
      text-align: left;
      background: transparent;
      border: 0;
      padding: 18px 52px 18px 20px;
      min-height: 56px;
      font-weight: 650;
      position: relative;
      color: var(--ink);
    }
    .faq-item button::after {
      content: "";
      position: absolute;
      right: 20px; top: 50%;
      width: 10px; height: 10px;
      border-right: 2px solid var(--blue-700);
      border-bottom: 2px solid var(--blue-700);
      transform: translateY(-70%) rotate(45deg);
      transition: transform var(--ease);
    }
    .faq-item button[aria-expanded="true"]::after { transform: translateY(-20%) rotate(225deg); }
    .faq-item .ans {
      display: none;
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 15px;
    }
    .faq-item.is-open .ans { display: block; }
    .cta-box {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 40px;
      align-items: start;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 40px;
      box-shadow: var(--shadow);
    }
    .form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
    .form .full { grid-column: 1 / -1; }
    label { display: block; font-size: 13px; font-weight: 650; margin-bottom: 6px; }
    input, select, textarea {
      width: 100%;
      min-height: 44px;
      border: 1px solid var(--line-strong);
      border-radius: 12px;
      padding: 10px 12px;
      background: #fff;
      color: var(--ink);
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 2px solid var(--blue);
      outline-offset: 1px;
      border-color: var(--blue);
    }
    .form-note { font-size: 13px; color: var(--muted); margin-top: 8px; }
    .form-ok {
      display: none;
      background: var(--moss-50);
      color: var(--moss-700);
      border-radius: 12px;
      padding: 12px 14px;
      font-weight: 650;
    }
    .form-ok.show, .form-ok.is-php { display: block; }
    .field.error input, .field.error select, .field.error textarea { border-color: var(--danger); background: var(--danger-bg); }
    .err { display: none; color: var(--danger); font-size: 12px; margin-top: 4px; }
    .field.error .err { display: block; }
    .benefit { margin-top: 18px; display: grid; gap: 10px; }
    .benefit li {
      list-style: none;
      background: var(--blue-50);
      border-radius: 12px;
      padding: 12px 14px;
      font-size: 15px;
    }
    .site-footer {
      background: var(--dark);
      color: rgba(255,255,255,.78);
      padding: 64px 0 28px;
    }
    .foot-grid {
      display: grid;
      grid-template-columns: 1.3fr 0.8fr 1fr 1fr;
      gap: 32px;
    }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 14px; }
    .site-footer a { color: rgba(255,255,255,.78); display: inline-flex; min-height: 36px; align-items: center; }
    .site-footer a:hover { color: #fff; }
    .foot-brand strong { color: #fff; font-size: 18px; display: block; margin-bottom: 10px; }
    .foot-copy {
      margin-top: 36px;
      padding-top: 18px;
      border-top: 1px solid rgba(255,255,255,.1);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    .drawer {
      position: fixed;
      inset: 0;
      background: rgba(24,29,34,.46);
      z-index: 80;
      opacity: 0;
      pointer-events: none;
      transition: opacity var(--ease);
    }
    .drawer.open { opacity: 1; pointer-events: auto; }
    .drawer-panel {
      position: absolute;
      right: 0; top: 0; bottom: 0;
      width: min(420px, 100%);
      background: #fff;
      padding: 24px 20px;
      overflow: auto;
      transform: translateX(24px);
      transition: transform var(--ease);
    }
    .drawer.open .drawer-panel { transform: none; }
    .drawer-links { display: grid; gap: 6px; margin: 18px 0; }
    .drawer-links a {
      color: var(--ink);
      min-height: 44px;
      display: flex;
      align-items: center;
      padding: 0 10px;
      border-radius: 10px;
      font-weight: 600;
    }
    .drawer-links a:hover, .drawer-links a[aria-current="true"] { background: var(--blue-50); color: var(--blue-700); }
    body.nav-lock { overflow: hidden; }
    @media (max-width: 1200px) {
      .h2 { font-size: 28px; }
      .hero-heading { font-size: 40px; }
      .cap-card.wide { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 1024px) {
      .split, .media-split, .dark-inner, .story-grid, .cta-box { grid-template-columns: 1fr; }
      .story-main { grid-template-columns: 1fr; }
      .nav-links { display: none; }
      .nav-cta .btn { display: none; }
      .menu-toggle { display: inline-flex; }
      .timeline { grid-template-columns: 1fr 1fr; }
      .mod-grid, .scene-grid, .stats, .review-track { grid-template-columns: 1fr 1fr; }
      .review:nth-child(2) { margin-top: 0; }
      .cap-grid { grid-template-columns: 1fr 1fr; }
      .cap-card.wide { grid-column: span 2; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 992px) {
      :root { --space: 80px; }
      .case-slice { grid-template-columns: 1fr; }
      .case-item + .case-item { border-left: 0; border-top: 1px solid rgba(255,255,255,.12); padding-top: 22px; margin-top: 12px; }
      .kv { grid-template-columns: 1fr; }
      .kv div { border-right: 0; }
    }
    @media (max-width: 768px) {
      :root { --space: 64px; }
      .container, .topbar-inner, .navbar-inner, .hero-content, .hero-nav { width: calc(100% - 32px); }
      .topbar-inner { gap: 10px; }
      .topbar-right span.hide-sm { display: none; }
      .pain-grid, .timeline, .cap-grid, .mod-grid, .scene-grid, .stats, .review-track, .news-grid { grid-template-columns: 1fr; }
      .cap-card.wide { grid-column: auto; }
      .hero { min-height: 86vh; }
      .hero-heading { font-size: 32px; }
      .hero-content { padding: 48px 0 88px; }
      .form { grid-template-columns: 1fr; }
      .cta-box { padding: 24px 18px; }
      .h2 { font-size: 26px; max-width: none; }
      .sec-head { flex-direction: column; align-items: start; }
    }
    @media (max-width: 520px) {
      .hero-actions, .nav-cta { width: 100%; }
      .hero-actions .btn { width: 100%; }
      .topbar { font-size: 12px; }
      .logo-text span { display: none; }
      .foot-grid, .foot-copy { grid-template-columns: 1fr; }
      .hero-index { right: 16px; top: 16px; }
    }
    @media (max-width: 375px) {
      .container, .topbar-inner, .navbar-inner, .hero-content, .hero-nav { width: calc(100% - 28px); }
      .hero-heading { font-size: 26px; }
      body { font-size: 15px; }
      .btn { width: auto; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }

/* roulang page: index */
:root {
      --blue: #3A8EC4;
      --blue-deep: #2F7AAE;
      --blue-soft: #E7F3FA;
      --blue-mid: #D5E8F4;
      --moss: #5A9A62;
      --moss-soft: #E7F3E9;
      --graphite: #3D444C;
      --ink: #2F353C;
      --muted: #66707A;
      --faint: #8A949E;
      --bg: #F4F7FA;
      --bg-alt: #EAF1F6;
      --white: #FFFFFF;
      --border: #E6EEF5;
      --line: #D7E3EE;
      --danger: #C45C5C;
      --danger-soft: #F8EAEA;
      --dark: #32383F;
      --dark-2: #3A4149;
      --radius: 14px;
      --radius-sm: 10px;
      --shadow: 0 1px 2px rgba(47, 53, 60, 0.04), 0 8px 24px rgba(47, 53, 60, 0.06);
      --shadow-hover: 0 2px 4px rgba(47, 53, 60, 0.06), 0 14px 32px rgba(47, 53, 60, 0.1);
      --container: 1220px;
      --nav-h: 76px;
      --top-h: 38px;
      --space: 104px;
      --ease: 180ms ease;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--ink);
      background: var(--bg);
      font-size: 16px;
      line-height: 1.75;
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; border: 0; }
    a { color: var(--blue); text-decoration: none; transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease); }
    a:hover { color: var(--blue-deep); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4, p, ul, ol, dl, figure, blockquote { margin: 0; }
    ul, ol { padding: 0; list-style: none; }
    :focus { outline: none; }
    :focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 8px;
    }
    .skip:focus { left: 8px; background: var(--white); padding: 8px 12px; z-index: 100; }

    .site-header {
      position: sticky; top: 0; z-index: 80;
      background: var(--white);
      border-bottom: 1px solid transparent;
    }
    .topbar {
      display: flex; align-items: center; justify-content: space-between;
      min-height: var(--top-h);
      background: #F7FBFD;
      border-bottom: 1px solid var(--border);
      font-size: 12px; color: var(--muted); letter-spacing: 0.02em;
    }
    .topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .topbar-right { display: flex; align-items: center; gap: 18px; white-space: nowrap; }
    .topbar a { color: var(--graphite); min-height: 32px; display: inline-flex; align-items: center; }
    .topbar a:hover { color: var(--blue); }
    .mainbar {
      min-height: var(--nav-h);
      display: flex; align-items: center;
      background: var(--white);
      transition: min-height var(--ease), box-shadow var(--ease);
    }
    .mainbar .container {
      display: flex; align-items: center; justify-content: space-between; gap: 20px;
      width: min(100% - 40px, var(--container));
    }
    .site-header.is-stuck { border-bottom-color: var(--border); }
    .site-header.is-stuck .topbar { display: none; }
    .site-header.is-stuck .mainbar {
      min-height: 64px;
      box-shadow: 0 8px 20px rgba(47, 53, 60, 0.06);
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: var(--ink); flex-shrink: 0;
    }
    .logo:hover { color: var(--ink); }
    .logo-mark {
      width: 36px; height: 36px; border-radius: 10px;
      background: linear-gradient(180deg, #4AA0D2, var(--blue));
      display: grid; place-items: center;
      box-shadow: 0 6px 14px rgba(58, 142, 196, 0.25);
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text strong { font-size: 16px; font-weight: 700; }
    .logo-text span { font-size: 11px; color: var(--muted); font-weight: 400; }
    .nav-links { display: flex; align-items: center; gap: 4px; }
    .nav-links a {
      color: var(--graphite); font-size: 14px; padding: 10px 12px; border-radius: 8px;
      min-height: 44px; display: inline-flex; align-items: center;
    }
    .nav-links a:hover, .nav-links a[aria-current="page"] {
      color: var(--blue); background: var(--blue-soft);
    }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--border);
      border-radius: 10px; background: var(--white); padding: 0;
    }
    .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
      display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px;
      position: relative; margin: 0 auto;
    }
    .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(50, 56, 63, 0.35); z-index: 90;
    }
    body.menu-open { overflow: hidden; }
    body.menu-open .drawer-backdrop { display: block; }

    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: 10px; border: 1px solid transparent;
      font-size: 14px; font-weight: 600; line-height: 1; white-space: nowrap;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn-primary {
      background: var(--blue); color: var(--white);
      box-shadow: 0 8px 18px rgba(58, 142, 196, 0.22);
    }
    .btn-primary:hover { background: #3F96CE; color: var(--white); box-shadow: var(--shadow-hover); }
    .btn-ghost {
      background: var(--white); color: var(--blue); border-color: #B9D7EA;
    }
    .btn-ghost:hover { border-color: var(--blue); color: var(--blue-deep); box-shadow: var(--shadow); }
    .btn-moss {
      background: transparent; color: #E8F6EA; border-color: rgba(90, 154, 98, 0.55);
    }
    .btn-text {
      background: none; color: var(--blue); padding: 0 4px; min-height: 44px; box-shadow: none; border: 0;
    }
    .btn-text::after { content: " →"; }
    .badge {
      display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px;
      border-radius: 999px; font-size: 12px; background: var(--blue-soft); color: var(--blue-deep); font-weight: 600;
    }
    .badge-moss { background: var(--moss-soft); color: #3F7A47; }
    .badge-dark { background: rgba(255,255,255,0.12); color: #F4F8FB; }
    .badge-row { display: flex; flex-wrap: wrap; gap: 8px; }

    main { overflow: clip; }
    section { scroll-margin-top: 84px; }
    .section {
      padding: var(--space) 0;
    }
    .section-alt { background: var(--bg-alt); }
    .section-white { background: var(--white); }
    .kicker {
      font-size: 12px; letter-spacing: 0.12em; color: var(--blue); font-weight: 700; margin-bottom: 10px;
    }
    .h2 {
      font-size: 32px; line-height: 1.28; font-weight: 750; color: var(--ink); letter-spacing: -0.02em;
      text-align: left; max-width: 18em;
    }
    .lead {
      margin-top: 16px; color: var(--muted); max-width: 46em; font-size: 16px;
    }
    .section-head { margin-bottom: 40px; }

    .hero {
      position: relative; background: var(--dark); color: var(--white); min-height: 680px;
    }
    .slides { position: relative; min-height: 680px; }
    .slide {
      position: absolute; inset: 0; opacity: 0; pointer-events: none;
      transition: opacity 420ms ease;
    }
    .slide.is-active { opacity: 1; pointer-events: auto; z-index: 1; }
    .slide img.slide-bg {
      position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
    }
    .slide-mask {
      position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(28, 34, 40, 0.82) 0%, rgba(28, 34, 40, 0.62) 46%, rgba(28, 34, 40, 0.28) 100%),
        linear-gradient(180deg, rgba(28, 34, 40, 0.2), rgba(28, 34, 40, 0.45));
    }
    .slide-content {
      position: relative; z-index: 2; min-height: 680px;
      display: flex; align-items: center; padding: 72px 0 88px;
    }
    .hero-brand { font-size: 13px; color: #D5E8F4; margin-bottom: 16px; font-weight: 600; }
    .hero h1, .hero-heading {
      font-size: clamp(32px, 4.4vw, 52px); line-height: 1.18; font-weight: 750;
      max-width: 12em; letter-spacing: -0.03em;
    }
    .hero-intro { margin-top: 22px; max-width: 40em; color: #E6EEF3; font-size: 16px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-badges { margin-top: 28px; }
    .carousel-nav {
      position: absolute; z-index: 3; bottom: 28px; left: 0; right: 0;
    }
    .carousel-nav .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .dots { display: flex; gap: 8px; }
    .dots button {
      width: 44px; height: 44px; border: 0; background: transparent; padding: 0;
      display: grid; place-items: center;
    }
    .dots button i {
      display: block; width: 28px; height: 3px; border-radius: 99px; background: rgba(255,255,255,0.35);
    }
    .dots button.is-on i, .dots button[aria-current="true"] i { background: #fff; }
    .arrow-group { display: flex; gap: 8px; }
    .icon-btn {
      width: 44px; height: 44px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.25);
      background: rgba(255,255,255,0.08); color: #fff;
    }
    .icon-btn:hover { background: rgba(255,255,255,0.16); }

    .pain-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
    .pain-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .pain-item {
      background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
      padding: 22px; box-shadow: var(--shadow);
    }
    .pain-item:hover { border-color: rgba(58, 142, 196, 0.35); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
    .pain-ico {
      width: 40px; height: 40px; border-radius: 10px; background: var(--blue-soft); color: var(--blue);
      display: grid; place-items: center; margin-bottom: 12px;
    }
    .pain-item h3 { font-size: 18px; margin-bottom: 8px; }
    .pain-item p { color: var(--muted); font-size: 15px; }

    .split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
    .split.reverse { grid-template-columns: 0.95fr 1.05fr; }
    .media-frame {
      border-radius: 16px; overflow: hidden; box-shadow: var(--shadow);
      border: 1px solid var(--border); background: var(--white);
    }
    .media-16x10 { aspect-ratio: 16/10; }
    .media-4x3 { aspect-ratio: 4/3; }
    .media-frame img { width: 100%; height: 100%; object-fit: cover; }
    .point-list { margin-top: 22px; display: grid; gap: 14px; }
    .point-list li {
      padding-left: 28px; position: relative; color: var(--graphite); font-size: 15px;
    }
    .point-list li::before {
      content: ""; position: absolute; left: 0; top: 9px; width: 12px; height: 12px; border-radius: 4px;
      background: var(--blue);
    }
    .std-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }

    .timeline {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 4%; right: 4%; top: 28px; height: 2px; background: var(--blue-mid);
    }
    .step {
      background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
      padding: 22px 18px 20px; box-shadow: var(--shadow); position: relative;
    }
    .step:hover { border-color: rgba(58, 142, 196, 0.35); box-shadow: var(--shadow-hover); }
    .step-no {
      width: 36px; height: 36px; border-radius: 50%; background: var(--blue); color: #fff;
      display: grid; place-items: center; font-size: 13px; font-weight: 700; margin-bottom: 14px; position: relative; z-index: 1;
    }
    .step h3 { font-size: 17px; margin-bottom: 8px; }
    .step p { font-size: 14px; color: var(--muted); }
    .output {
      margin-top: 12px; font-size: 12px; color: var(--blue-deep); background: var(--blue-soft);
      display: inline-flex; padding: 4px 8px; border-radius: 6px;
    }

    .cap-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
    }
    .card {
      background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
      box-shadow: var(--shadow); padding: 24px;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: rgba(58, 142, 196, 0.28); }
    .card h3 { font-size: 18px; margin: 8px 0 10px; }
    .card p { color: var(--muted); font-size: 15px; }
    .span-2 { grid-column: span 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 18px; align-items: center; }
    .metric-num {
      font-size: 40px; line-height: 1; font-weight: 750; color: var(--blue); font-variant-numeric: tabular-nums;
    }
    .metric-num small { font-size: 14px; color: var(--muted); font-weight: 500; margin-left: 6px; }
    .mini-list { margin-top: 10px; color: var(--graphite); font-size: 14px; display: grid; gap: 6px; }
    .mini-list li { padding-left: 14px; position: relative; }
    .mini-list li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--moss); position: absolute; left: 0; top: 9px; }

    .mod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .mod-card { padding: 0; overflow: hidden; }
    .mod-card .media-16x10 { border-radius: 16px 16px 0 0; }
    .mod-body { padding: 22px; }
    .mod-card h3 { font-size: 20px; margin: 10px 0; }
    .mod-card .btn-text { margin-top: 8px; }

    .cases {
      padding: 96px 0; color: #F3F6F8;
      background-color: var(--dark);
      background-image:
        linear-gradient(rgba(50, 56, 63, 0.88), rgba(50, 56, 63, 0.92)),
        linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px),
        url("/assets/images/9d71e29a07b9ddf9.webp");
      background-size: auto, 32px 32px, 32px 32px, cover;
      background-position: center;
    }
    .cases .h2, .cases .lead { color: #F3F6F8; }
    .cases .lead { color: #C9D3DB; }
    .case-layout { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: stretch; }
    .case-slice { display: grid; gap: 0; }
    .case-item { padding: 22px 0; }
    .case-item + .case-item { border-top: 1px solid rgba(255,255,255,0.12); }
    .case-item .tag { color: #9FD0A6; font-size: 12px; font-weight: 700; letter-spacing: 0.08em; }
    .case-item h3 { font-size: 20px; margin: 8px 0; }
    .case-item p { color: #C9D3DB; font-size: 15px; }
    .case-kpi { margin-top: 10px; font-size: 14px; color: #E8F6EA; }

    .scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .scene {
      background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
      padding: 22px; box-shadow: var(--shadow); min-height: 220px;
    }
    .scene:hover { border-color: rgba(58, 142, 196, 0.3); transform: translateY(-2px); }
    .scene h3 { font-size: 18px; margin-bottom: 10px; }
    .scene p { font-size: 15px; color: var(--muted); }
    .scene .out { margin-top: 12px; font-size: 13px; color: var(--blue-deep); }

    .story-layout { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 24px; }
    .story-main {
      display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 0; overflow: hidden; padding: 0;
    }
    .story-main .copy { padding: 28px; }
    .role { font-size: 13px; color: var(--blue-deep); font-weight: 700; }
    .side-stack { display: grid; gap: 16px; }
    .side-card { padding: 20px; }

    .stat-bar {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
      background: var(--white); border: 1px solid var(--border); border-radius: 16px;
      box-shadow: var(--shadow); padding: 10px;
    }
    .stat {
      padding: 22px 18px; border-radius: 12px;
    }
    .stat + .stat { border-left: 1px solid var(--border); }
    .stat b {
      display: block; font-size: 34px; color: var(--blue); line-height: 1.1;
      font-variant-numeric: tabular-nums;
    }
    .stat span { display: block; margin-top: 8px; color: var(--ink); font-weight: 650; font-size: 15px; }
    .stat small { display: block; margin-top: 6px; color: var(--faint); font-size: 12px; }

    .quote-track { display: grid; grid-template-columns: 1.15fr 0.95fr 0.9fr; gap: 18px; align-items: start; }
    .quote { padding: 26px; }
    .quote p { font-size: 16px; color: var(--graphite); }
    .quote footer { margin-top: 18px; font-size: 13px; color: var(--muted); display: flex; gap: 12px; align-items: center; }
    .avatar {
      width: 44px; height: 44px; border-radius: 50%; background: var(--blue-soft); color: var(--blue-deep);
      display: grid; place-items: center; font-weight: 700; flex-shrink: 0;
    }
    .quote:nth-child(2) { margin-top: 28px; }
    .quote:nth-child(3) { margin-top: 12px; }

    .metric-wall {
      display: grid; grid-template-columns: 1fr 1fr; gap: 0;
      background: var(--white); border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
      box-shadow: var(--shadow);
    }
    .metric-wall div {
      display: grid; grid-template-columns: 180px 1fr; gap: 16px; padding: 18px 22px;
      border-bottom: 1px solid var(--border); font-size: 15px;
    }
    .metric-wall div:nth-child(odd) { background: #FBFCFD; }
    .metric-wall dt { color: var(--muted); font-weight: 650; }
    .metric-wall dd { color: var(--ink); margin: 0; }

    .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .news-card { padding: 0; overflow: hidden; }
    .news-card img { width: 100%; height: 140px; object-fit: cover; }
    .news-card .copy { padding: 16px 18px 18px; }
    .news-card time { font-size: 12px; color: var(--faint); font-variant-numeric: tabular-nums; }
    .news-card h3 { font-size: 16px; line-height: 1.45; margin: 8px 0; }
    .news-card p { font-size: 14px; color: var(--muted); }
    .head-row { display: flex; justify-content: space-between; align-items: end; gap: 16px; }

    .faq-list { display: grid; gap: 10px; max-width: 920px; }
    .faq-item { background: var(--white); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; background: none; border: 0; padding: 16px 18px;
      min-height: 52px; display: flex; justify-content: space-between; gap: 16px; align-items: center;
      color: var(--ink); font-weight: 650; font-size: 16px;
    }
    .faq-item button span.plus { color: var(--blue); font-size: 22px; line-height: 1; }
    .faq-item .ans { display: none; padding: 0 18px 16px; color: var(--muted); font-size: 15px; }
    .faq-item.is-open .ans { display: block; }
    .faq-item.is-open { border-color: rgba(58, 142, 196, 0.35); }

    .cta-band { background: linear-gradient(180deg, #F4F7FA, #E7F3FA); }
    .cta-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
    .form {
      background: var(--white); border: 1px solid var(--border); border-radius: 16px;
      box-shadow: var(--shadow); padding: 28px;
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 13px; color: var(--graphite); font-weight: 650; }
    input, select, textarea {
      min-height: 44px; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
      background: #FCFDFE; color: var(--ink);
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--blue); background: #fff; }
    .field.error input, .field.error select, .field.error textarea { border-color: var(--danger); background: var(--danger-soft); }
    .err { display: none; color: var(--danger); font-size: 12px; }
    .field.error .err { display: block; }
    .form-note { margin-top: 12px; font-size: 13px; color: var(--muted); }
    .form-success {
      display: none; margin-top: 12px; padding: 12px 14px; border-radius: 10px;
      background: var(--moss-soft); color: #2F6A38; font-size: 14px;
    }
    .form-success.is-show { display: block; }
    .deliver { margin-top: 18px; display: grid; gap: 10px; }
    .deliver li { background: var(--white); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; font-size: 15px; }

    .site-footer {
      background: var(--dark); color: #D5DDE3; padding: 64px 0 28px;
    }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 0.9fr 1fr 0.9fr; gap: 32px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 14px; }
    .site-footer a { color: #D5DDE3; display: inline-flex; min-height: 36px; align-items: center; }
    .site-footer a:hover { color: #fff; }
    .foot-brand p { font-size: 14px; max-width: 28em; }
    .legal { margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 12px; color: #9AA4AD; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

    @media (max-width: 1200px) {
      .h2 { font-size: 28px; }
      .span-2 { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 992px) {
      :root { --space: 80px; }
      .pain-layout, .split, .split.reverse, .case-layout, .story-layout, .cta-layout, .story-main {
        grid-template-columns: 1fr;
      }
      .timeline { grid-template-columns: 1fr 1fr; }
      .timeline::before { display: none; }
      .cap-grid, .mod-grid, .scene-grid, .quote-track { grid-template-columns: 1fr 1fr; }
      .span-2 { grid-column: span 2; }
      .stat-bar { grid-template-columns: 1fr 1fr; }
      .stat + .stat { border-left: 0; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .metric-wall div { grid-template-columns: 1fr; gap: 4px; }
    }
    @media (max-width: 768px) {
      .topbar { display: none; }
      .nav-links, .nav-cta .btn { display: none; }
      .menu-toggle { display: grid; place-items: center; }
      .nav-links.is-open {
        display: flex; flex-direction: column; align-items: stretch;
        position: fixed; top: 0; right: 0; width: min(86vw, 360px); height: 100vh;
        background: var(--white); z-index: 100; padding: 72px 20px 24px;
        box-shadow: var(--shadow-hover); overflow: auto;
      }
      .nav-links.is-open a { min-height: 48px; }
      .drawer-extra { display: none; }
      .nav-links.is-open .drawer-extra { display: grid; gap: 8px; margin: 12px 0 18px; font-size: 14px; }
      .nav-links.is-open .btn { display: inline-flex; width: 100%; }
      .hero, .slides, .slide-content { min-height: 620px; }
      .h2 { font-size: 24px; }
      .pain-list, .timeline, .cap-grid, .mod-grid, .scene-grid, .quote-track, .news-grid, .stat-bar, .form-grid, .foot-grid {
        grid-template-columns: 1fr;
      }
      .span-2 { grid-column: span 1; }
      .quote:nth-child(2), .quote:nth-child(3) { margin-top: 0; }
      .legal { flex-direction: column; }
    }
    @media (max-width: 375px) {
      .container { width: min(100% - 24px, var(--container)); }
      .hero h1, .hero-heading { font-size: 28px; }
      .hero-actions .btn { width: 100%; }
      .metric-num { font-size: 32px; }
      body { font-size: 15px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }