/* roulang page: index */
:root {
      --color-primary: #2f6f8f;
      --color-primary-strong: #245a75;
      --color-primary-soft: #e8f4f8;
      --color-accent: #39a7c7;
      --color-accent-soft: #dff5fa;
      --color-bg: #f6f9fb;
      --color-bg-soft: #eef5f8;
      --color-white: #ffffff;
      --color-text: #172b3a;
      --color-text-muted: #5c7180;
      --color-text-light: #7b8d98;
      --color-border: #dce8ee;
      --color-border-strong: #c8dae3;
      --color-dark: #183140;
      --color-dark-2: #213d4f;
      --color-success: #2f8f65;
      --color-warning: #b77b1d;
      --color-danger: #b94a48;
      --shadow-sm: 0 6px 18px rgba(31, 67, 85, .08);
      --shadow-md: 0 14px 36px rgba(31, 67, 85, .12);
      --shadow-lg: 0 24px 56px rgba(31, 67, 85, .16);
      --radius-xs: 8px;
      --radius-sm: 12px;
      --radius-md: 16px;
      --radius-lg: 22px;
      --radius-xl: 30px;
      --radius-full: 999px;
      --container: 1220px;
      --header-height: 64px;
      --transition: 180ms ease;
      --section-space: 88px;
      --section-space-sm: 56px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

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

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", Arial, sans-serif;
      color: var(--color-text);
      background:
        radial-gradient(circle at 12% 4%, rgba(57, 167, 199, .08), transparent 32%),
        linear-gradient(180deg, #ffffff 0%, var(--color-bg) 48%, #ffffff 100%);
      line-height: 1.7;
      font-size: 16px;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    }

    img, svg {
      max-width: 100%;
      display: block;
    }

    button, input, textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
      background: none;
    }

    input, textarea {
      width: 100%;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      background: #f8fbfc;
      color: var(--color-text);
      outline: none;
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    input:focus, textarea:focus {
      border-color: var(--color-accent);
      background: #ffffff;
      box-shadow: 0 0 0 4px rgba(57, 167, 199, .14);
    }

    input:disabled, textarea:disabled, button:disabled {
      opacity: .55;
      cursor: not-allowed;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-height);
      background: rgba(255, 255, 255, .94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(220, 232, 238, .9);
      box-shadow: 0 8px 22px rgba(31, 67, 85, .05);
    }

    .nav-wrap {
      height: var(--header-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 260px;
      font-weight: 800;
      color: var(--color-dark);
      letter-spacing: -.02em;
      white-space: nowrap;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      background:
        linear-gradient(135deg, rgba(47,111,143,1), rgba(57,167,199,1));
      display: grid;
      place-items: center;
      color: #fff;
      box-shadow: 0 10px 24px rgba(47,111,143,.2);
      flex: 0 0 auto;
    }

    .brand-mark svg {
      width: 22px;
      height: 22px;
    }

    .brand-text {
      font-size: 17px;
      max-width: 330px;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      flex: 1;
    }

    .nav-links a {
      padding: 9px 14px;
      border-radius: var(--radius-full);
      color: var(--color-text-muted);
      font-weight: 600;
      font-size: 14px;
    }

    .nav-links a:hover {
      color: var(--color-primary);
      background: var(--color-primary-soft);
    }

    .nav-links a.active,
    .nav-links a[aria-current="page"] {
      color: var(--color-primary-strong);
      background: #e4f2f7;
      box-shadow: inset 0 0 0 1px rgba(57, 167, 199, .18);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .search-box {
      width: 210px;
      height: 40px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 0 12px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-full);
      background: #f7fbfc;
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    .search-box:focus-within {
      border-color: var(--color-accent);
      background: #fff;
      box-shadow: 0 0 0 4px rgba(57, 167, 199, .12);
    }

    .search-box svg {
      width: 16px;
      height: 16px;
      color: var(--color-text-light);
      flex: 0 0 auto;
    }

    .search-box input {
      height: 100%;
      padding: 0;
      border: 0;
      background: transparent;
      font-size: 14px;
      box-shadow: none;
    }

    .search-box input:focus {
      box-shadow: none;
      background: transparent;
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      background: #fff;
      color: var(--color-primary);
      align-items: center;
      justify-content: center;
    }

    .menu-toggle:hover {
      background: var(--color-primary-soft);
      border-color: var(--color-border-strong);
    }

    .menu-toggle:active {
      transform: scale(.96);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 42px;
      padding: 11px 18px;
      border-radius: 13px;
      font-weight: 700;
      font-size: 15px;
      border: 1px solid transparent;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
      user-select: none;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--color-primary);
      color: #fff;
      box-shadow: 0 12px 26px rgba(47, 111, 143, .22);
    }

    .btn-primary:hover {
      background: var(--color-primary-strong);
      transform: translateY(-2px);
      box-shadow: 0 18px 32px rgba(47, 111, 143, .25);
    }

    .btn-primary:active {
      transform: translateY(0) scale(.98);
      box-shadow: 0 8px 18px rgba(47, 111, 143, .18);
    }

    .btn-secondary {
      background: #fff;
      color: var(--color-primary-strong);
      border-color: var(--color-border-strong);
    }

    .btn-secondary:hover {
      border-color: var(--color-accent);
      background: var(--color-primary-soft);
      transform: translateY(-2px);
    }

    .btn-ghost {
      background: rgba(255,255,255,.1);
      color: #fff;
      border-color: rgba(255,255,255,.32);
    }

    .btn-ghost:hover {
      background: rgba(255,255,255,.18);
      transform: translateY(-2px);
    }

    .section {
      padding: var(--section-space) 0;
    }

    .section.compact {
      padding: var(--section-space-sm) 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-primary);
      background: var(--color-primary-soft);
      border: 1px solid rgba(57, 167, 199, .18);
      border-radius: var(--radius-full);
      padding: 6px 12px;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .section-title {
      font-size: clamp(28px, 3vw, 38px);
      line-height: 1.25;
      letter-spacing: -.03em;
      color: var(--color-dark);
      max-width: 760px;
    }

    .section-desc {
      color: var(--color-text-muted);
      max-width: 560px;
      font-size: 16px;
    }

    .hero {
      position: relative;
      padding: 74px 0 72px;
      overflow: hidden;
      background:
        linear-gradient(120deg, rgba(232,244,248,.8), rgba(255,255,255,.6) 44%, rgba(238,245,248,.75)),
        linear-gradient(180deg, #ffffff, #f8fbfc);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(47,111,143,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(47,111,143,.06) 1px, transparent 1px);
      background-size: 44px 44px;
      mask-image: linear-gradient(90deg, rgba(0,0,0,.48), transparent 82%);
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
      gap: 54px;
      align-items: center;
    }

    .hero-copy h1 {
      font-size: clamp(34px, 4.4vw, 52px);
      line-height: 1.16;
      letter-spacing: -.045em;
      color: var(--color-dark);
      margin-bottom: 20px;
    }

    .hero-copy h1 span {
      color: var(--color-primary);
      position: relative;
    }

    .hero-copy p {
      font-size: 17px;
      color: var(--color-text-muted);
      max-width: 640px;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      margin-bottom: 28px;
    }

    .trust-strip {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 680px;
    }

    .trust-item {
      padding: 14px 16px;
      background: rgba(255,255,255,.82);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .trust-item strong {
      display: block;
      color: var(--color-primary-strong);
      font-size: 20px;
      line-height: 1.25;
      margin-bottom: 2px;
    }

    .trust-item span {
      font-size: 13px;
      color: var(--color-text-muted);
    }

    .hero-visual {
      position: relative;
      min-height: 460px;
    }

    .dashboard-card {
      position: relative;
      height: 100%;
      min-height: 460px;
      padding: 24px;
      border-radius: 28px;
      background: #ffffff;
      border: 1px solid rgba(220,232,238,.9);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }

    .dashboard-card::after {
      content: "";
      position: absolute;
      right: -80px;
      top: -80px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: rgba(57,167,199,.12);
    }

    .visual-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 22px;
      position: relative;
      z-index: 1;
    }

    .visual-dots {
      display: flex;
      gap: 7px;
    }

    .visual-dots span {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: #c9dde6;
    }

    .visual-dots span:nth-child(2) {
      background: #8ec8d9;
    }

    .visual-dots span:nth-child(3) {
      background: var(--color-primary);
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      color: var(--color-success);
      background: rgba(47,143,101,.1);
      border: 1px solid rgba(47,143,101,.18);
      padding: 6px 10px;
      border-radius: var(--radius-full);
    }

    .status-pill::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-success);
      box-shadow: 0 0 0 5px rgba(47,143,101,.12);
    }

    .metric-panel {
      position: relative;
      z-index: 1;
      padding: 22px;
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, #f4fafc, #ffffff);
      border: 1px solid var(--color-border);
      margin-bottom: 16px;
    }

    .metric-panel h3 {
      font-size: 18px;
      margin-bottom: 12px;
      color: var(--color-dark);
    }

    .progress-line {
      height: 10px;
      border-radius: var(--radius-full);
      background: #e4eef3;
      overflow: hidden;
      margin: 14px 0;
    }

    .progress-line span {
      display: block;
      height: 100%;
      width: 78%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    }

    .panel-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      position: relative;
      z-index: 1;
    }

    .mini-panel {
      padding: 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      background: #fff;
    }

    .mini-panel b {
      display: block;
      color: var(--color-primary-strong);
      font-size: 24px;
      line-height: 1.2;
    }

    .mini-panel span {
      color: var(--color-text-muted);
      font-size: 13px;
    }

    .floating-note {
      position: absolute;
      right: 18px;
      bottom: 24px;
      width: 220px;
      padding: 16px;
      border-radius: var(--radius-md);
      background: var(--color-dark);
      color: #e9f5f8;
      box-shadow: 0 20px 44px rgba(24,49,64,.24);
      z-index: 2;
    }

    .floating-note strong {
      display: block;
      font-size: 16px;
      margin-bottom: 6px;
    }

    .floating-note p {
      font-size: 13px;
      color: rgba(255,255,255,.76);
      line-height: 1.6;
    }

    .pain-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 24px;
      align-items: stretch;
    }

    .pain-story {
      padding: 34px;
      border-radius: var(--radius-xl);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .pain-story h3 {
      font-size: 26px;
      line-height: 1.3;
      color: var(--color-dark);
      margin-bottom: 14px;
    }

    .pain-story p {
      color: var(--color-text-muted);
      margin-bottom: 20px;
    }

    .pain-list {
      display: grid;
      gap: 14px;
    }

    .pain-list li,
    .solution-step,
    .case-card,
    .testimonial-card,
    .category-card,
    .content-card {
      list-style: none;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .pain-list li {
      display: flex;
      gap: 14px;
      padding: 18px;
    }

    .pain-list li:hover,
    .solution-step:hover,
    .case-card:hover,
    .testimonial-card:hover,
    .category-card:hover,
    .content-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--color-border-strong);
    }

    .icon-box {
      width: 38px;
      height: 38px;
      border-radius: 13px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      font-weight: 800;
    }

    .pain-list h4 {
      font-size: 17px;
      margin-bottom: 4px;
      color: var(--color-dark);
    }

    .pain-list p {
      font-size: 14px;
      color: var(--color-text-muted);
      line-height: 1.65;
    }

    .category-band {
      padding: 34px;
      border-radius: 30px;
      background:
        linear-gradient(135deg, rgba(232,244,248,.95), rgba(255,255,255,.92)),
        radial-gradient(circle at 92% 14%, rgba(57,167,199,.14), transparent 30%);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: minmax(0, .75fr) minmax(320px, .25fr);
      gap: 24px;
      align-items: center;
    }

    .category-band h2 {
      font-size: clamp(26px, 3vw, 36px);
      line-height: 1.28;
      color: var(--color-dark);
      margin-bottom: 10px;
    }

    .category-band p {
      color: var(--color-text-muted);
      max-width: 680px;
    }

    .chips {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .chip, .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 12px;
      border-radius: var(--radius-full);
      background: #fff;
      border: 1px solid var(--color-border);
      color: var(--color-primary-strong);
      font-weight: 700;
      font-size: 13px;
    }

    .chip.selected {
      color: #fff;
      background: var(--color-primary);
      border-color: var(--color-primary);
    }

    .category-card {
      padding: 22px;
      background: #fff;
    }

    .category-card h3 {
      font-size: 21px;
      margin: 12px 0 8px;
      color: var(--color-dark);
    }

    .category-card p {
      font-size: 14px;
      color: var(--color-text-muted);
      margin-bottom: 18px;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--color-primary);
      font-weight: 800;
      font-size: 14px;
    }

    .text-link:hover {
      color: var(--color-primary-strong);
      transform: translateX(2px);
    }

    .solution-layout {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 26px;
      align-items: start;
    }

    .compare-box {
      padding: 30px;
      border-radius: var(--radius-xl);
      background: var(--color-dark);
      color: #fff;
      box-shadow: var(--shadow-lg);
      position: sticky;
      top: 88px;
    }

    .compare-box h3 {
      font-size: 26px;
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .compare-box p {
      color: rgba(255,255,255,.72);
      margin-bottom: 22px;
    }

    .indicator-bars {
      display: grid;
      gap: 16px;
    }

    .indicator-bars label {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      color: rgba(255,255,255,.84);
      font-size: 14px;
      margin-bottom: 7px;
    }

    .indicator-bars .bar {
      height: 9px;
      border-radius: var(--radius-full);
      background: rgba(255,255,255,.13);
      overflow: hidden;
    }

    .indicator-bars .bar span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, #80d6e8, #ffffff);
    }

    .solution-steps {
      display: grid;
      gap: 16px;
    }

    .solution-step {
      padding: 24px;
      display: grid;
      grid-template-columns: 58px 1fr;
      gap: 18px;
      align-items: start;
    }

    .step-num {
      width: 58px;
      height: 58px;
      border-radius: 18px;
      background: var(--color-primary-soft);
      color: var(--color-primary-strong);
      display: grid;
      place-items: center;
      font-weight: 900;
      font-size: 20px;
    }

    .solution-step h3 {
      font-size: 21px;
      margin-bottom: 6px;
      color: var(--color-dark);
    }

    .solution-step p {
      color: var(--color-text-muted);
      font-size: 15px;
    }

    .dark-section {
      background:
        linear-gradient(135deg, var(--color-dark), var(--color-dark-2));
      color: #fff;
      border-radius: 34px;
      padding: 48px;
      position: relative;
      overflow: hidden;
    }

    .dark-section::before {
      content: "";
      position: absolute;
      inset: auto -120px -160px auto;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: rgba(57,167,199,.2);
      filter: blur(2px);
    }

    .dark-head {
      position: relative;
      display: flex;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 30px;
    }

    .dark-head h2 {
      font-size: clamp(28px, 3vw, 38px);
      line-height: 1.25;
      max-width: 620px;
    }

    .dark-head p {
      color: rgba(255,255,255,.72);
      max-width: 430px;
    }

    .results-grid {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .result-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
    }

    .result-card strong {
      display: block;
      font-size: 32px;
      line-height: 1.1;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .result-card span {
      color: rgba(255,255,255,.72);
      font-size: 14px;
    }

    .case-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 20px;
    }

    .case-card {
      padding: 28px;
    }

    .case-card.featured {
      min-height: 340px;
      background:
        linear-gradient(135deg, #ffffff, #f3fafc);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-card h3 {
      font-size: 24px;
      line-height: 1.35;
      color: var(--color-dark);
      margin: 14px 0 8px;
    }

    .case-card p {
      color: var(--color-text-muted);
    }

    .case-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 22px;
    }

    .case-stats div {
      padding: 14px;
      border-radius: var(--radius-md);
      background: var(--color-primary-soft);
    }

    .case-stats b {
      display: block;
      color: var(--color-primary-strong);
      font-size: 22px;
    }

    .case-stats span {
      font-size: 12px;
      color: var(--color-text-muted);
    }

    .case-side {
      display: grid;
      gap: 20px;
    }

    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .testimonial-card {
      padding: 24px;
      position: relative;
    }

    .quote-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      background: var(--color-accent-soft);
      color: var(--color-primary);
      display: grid;
      place-items: center;
      font-size: 26px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .testimonial-card p {
      color: var(--color-text-muted);
      margin-bottom: 18px;
    }

    .profile {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #d9eef5, #8ccbdc);
      display: grid;
      place-items: center;
      color: var(--color-primary-strong);
      font-weight: 900;
    }

    .profile strong {
      display: block;
      color: var(--color-dark);
      line-height: 1.3;
    }

    .profile span {
      color: var(--color-text-light);
      font-size: 13px;
    }

    .content-preview {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 18px;
    }

    .content-card {
      padding: 24px;
      grid-column: span 4;
    }

    .content-card.large {
      grid-column: span 8;
      display: grid;
      grid-template-columns: 1fr .72fr;
      gap: 24px;
      align-items: center;
      background:
        linear-gradient(135deg, #ffffff, #eff8fb);
    }

    .visual-block {
      min-height: 210px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-border);
      background:
        linear-gradient(135deg, rgba(47,111,143,.12), rgba(57,167,199,.08)),
        repeating-linear-gradient(0deg, rgba(47,111,143,.07) 0 1px, transparent 1px 18px);
      display: grid;
      place-items: center;
      overflow: hidden;
    }

    .visual-block span {
      width: 112px;
      height: 112px;
      border-radius: 34px;
      background: #fff;
      box-shadow: var(--shadow-md);
      display: grid;
      place-items: center;
      color: var(--color-primary);
      font-weight: 900;
      font-size: 34px;
    }

    .content-card h3 {
      font-size: 22px;
      margin: 12px 0 8px;
      color: var(--color-dark);
    }

    .content-card p {
      color: var(--color-text-muted);
      font-size: 15px;
      margin-bottom: 16px;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 34px;
      align-items: start;
    }

    .faq-intro {
      padding: 30px;
      border-radius: var(--radius-xl);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .faq-intro h2 {
      font-size: 32px;
      line-height: 1.25;
      color: var(--color-dark);
      margin-bottom: 12px;
    }

    .faq-intro p {
      color: var(--color-text-muted);
      margin-bottom: 20px;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .faq-item:hover {
      border-color: var(--color-border-strong);
    }

    .faq-question {
      width: 100%;
      min-height: 62px;
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      text-align: left;
      color: var(--color-dark);
      font-weight: 800;
    }

    .faq-question:focus-visible,
    .btn:focus-visible,
    .nav-links a:focus-visible,
    .text-link:focus-visible,
    .menu-toggle:focus-visible {
      outline: 3px solid rgba(57,167,199,.26);
      outline-offset: 3px;
    }

    .faq-icon {
      width: 26px;
      height: 26px;
      flex: 0 0 auto;
      border-radius: 50%;
      background: var(--color-primary-soft);
      color: var(--color-primary);
      display: grid;
      place-items: center;
      transition: transform var(--transition), background var(--transition), color var(--transition);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px 22px;
      color: var(--color-text-muted);
      border-left: 3px solid var(--color-accent);
      margin-left: 22px;
      margin-bottom: 4px;
      line-height: 1.75;
    }

    .faq-item.open {
      border-color: rgba(57,167,199,.32);
      box-shadow: var(--shadow-md);
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--color-primary);
      color: #fff;
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    .cta-panel {
      padding: 42px;
      border-radius: 34px;
      background:
        linear-gradient(135deg, rgba(232,244,248,.95), rgba(255,255,255,.96)),
        radial-gradient(circle at 12% 18%, rgba(57,167,199,.12), transparent 32%);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1fr 380px;
      gap: 34px;
      align-items: center;
    }

    .cta-panel h2 {
      font-size: clamp(28px, 3.2vw, 40px);
      line-height: 1.25;
      color: var(--color-dark);
      margin-bottom: 12px;
    }

    .cta-panel p {
      color: var(--color-text-muted);
      max-width: 680px;
      margin-bottom: 22px;
    }

    .contact-card {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-xl);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .contact-card h3 {
      font-size: 20px;
      margin-bottom: 14px;
      color: var(--color-dark);
    }

    .form-grid {
      display: grid;
      gap: 12px;
    }

    .form-grid input,
    .form-grid textarea {
      padding: 12px 14px;
    }

    .form-grid textarea {
      min-height: 96px;
      resize: vertical;
    }

    .form-note {
      font-size: 12px;
      color: var(--color-text-light);
      line-height: 1.6;
    }

    .site-footer {
      background: #f2f7fa;
      border-top: 1px solid var(--color-border);
      padding: 56px 0 24px;
      margin-top: 20px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr 1fr;
      gap: 34px;
      margin-bottom: 34px;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 900;
      color: var(--color-dark);
      margin-bottom: 14px;
    }

    .footer-brand .brand-mark {
      width: 34px;
      height: 34px;
      border-radius: 12px;
    }

    .footer-col p {
      color: var(--color-text-muted);
      font-size: 14px;
      max-width: 360px;
    }

    .footer-col h3 {
      font-size: 16px;
      color: var(--color-dark);
      margin-bottom: 14px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
      list-style: none;
    }

    .footer-links a {
      color: var(--color-text-muted);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--color-primary);
      padding-left: 2px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      padding-top: 22px;
      border-top: 1px solid var(--color-border);
      color: var(--color-text-light);
      font-size: 13px;
      flex-wrap: wrap;
    }

    .loading-state {
      position: relative;
      pointer-events: none;
      color: transparent !important;
    }

    .loading-state::after {
      content: "";
      width: 18px;
      height: 18px;
      border: 2px solid rgba(255,255,255,.45);
      border-top-color: #fff;
      border-radius: 50%;
      position: absolute;
      animation: spin .8s linear infinite;
    }

    .success-text {
      color: var(--color-success);
    }

    .warning-text {
      color: var(--color-warning);
    }

    .error-text {
      color: var(--color-danger);
    }

    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    @media (max-width: 1120px) {
      .brand {
        min-width: auto;
      }

      .brand-text {
        max-width: 250px;
      }

      .search-box {
        width: 170px;
      }

      .hero-grid,
      .pain-grid,
      .solution-layout,
      .faq-wrap,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .compare-box {
        position: static;
      }

      .hero-visual {
        min-height: auto;
      }

      .content-card,
      .content-card.large {
        grid-column: span 6;
      }

      .content-card.large {
        grid-template-columns: 1fr;
      }

      .results-grid,
      .testimonial-grid,
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .category-band {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 860px) {
      :root {
        --section-space: 66px;
        --section-space-sm: 44px;
      }

      .container {
        width: min(100% - 28px, var(--container));
      }

      .site-header {
        height: auto;
      }

      .nav-wrap {
        min-height: var(--header-height);
        height: auto;
        flex-wrap: wrap;
        padding: 10px 0;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .nav-actions {
        margin-left: auto;
      }

      .search-box {
        display: none;
      }

      .nav-links {
        order: 3;
        flex-basis: 100%;
        display: none;
        justify-content: flex-start;
        padding: 10px 0 4px;
        overflow-x: auto;
      }

      .nav-links.open {
        display: flex;
      }

      .nav-links a {
        white-space: nowrap;
      }

      .hero {
        padding: 50px 0 56px;
      }

      .hero-grid {
        gap: 34px;
      }

      .trust-strip,
      .panel-row,
      .case-grid,
      .case-stats {
        grid-template-columns: 1fr;
      }

      .floating-note {
        position: static;
        width: auto;
        margin-top: 16px;
      }

      .dashboard-card {
        min-height: auto;
      }

      .dark-section {
        padding: 34px 24px;
        border-radius: 26px;
      }

      .dark-head {
        flex-direction: column;
      }

      .results-grid {
        grid-template-columns: 1fr 1fr;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 560px) {
      body {
        font-size: 15px;
      }

      .brand-text {
        max-width: 178px;
        font-size: 15px;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
        border-radius: 12px;
      }

      .nav-actions .btn {
        display: none;
      }

      .hero-copy h1 {
        font-size: 31px;
      }

      .hero-actions,
      .cta-panel .hero-actions {
        align-items: stretch;
        flex-direction: column;
      }

      .btn {
        width: 100%;
        min-height: 46px;
      }

      .trust-strip,
      .results-grid,
      .testimonial-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .pain-story,
      .category-band,
      .case-card,
      .content-card,
      .faq-intro,
      .cta-panel,
      .contact-card {
        padding: 22px;
        border-radius: 22px;
      }

      .solution-step {
        grid-template-columns: 1fr;
      }

      .content-card,
      .content-card.large {
        grid-column: span 12;
      }

      .dark-section {
        margin-left: -2px;
        margin-right: -2px;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

/* roulang page: category1 */
:root{
      --bg:#f6f8fb;
      --bg-2:#eef3f8;
      --surface:#ffffff;
      --surface-2:#f9fbfd;
      --line:#dce5ef;
      --line-2:#e8eef5;
      --text:#193047;
      --text-2:#4f6478;
      --text-3:#6f8294;
      --primary:#3f6e8f;
      --primary-2:#5d89a8;
      --primary-soft:#e8f2f8;
      --accent:#4fb1c8;
      --accent-soft:#e8f8fb;
      --shadow:0 12px 32px rgba(40,68,92,.08);
      --shadow-sm:0 6px 18px rgba(40,68,92,.06);
      --shadow-hover:0 16px 38px rgba(40,68,92,.12);
      --radius:18px;
      --radius-sm:12px;
      --radius-xs:10px;
      --container:1240px;
      --space:24px;
      --space-lg:40px;
      --space-xl:72px;
      --space-2xl:96px;
      --transition:220ms ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,HarmonyOS Sans SC,Noto Sans SC,sans-serif;
      background:
        linear-gradient(180deg,#ffffff 0%,#f7f9fc 45%,#f4f7fb 100%);
      color:var(--text);
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition),background var(--transition),border-color var(--transition),transform var(--transition),box-shadow var(--transition)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(79,177,200,.18);color:var(--text)}
    .container{
      width:min(var(--container),calc(100% - 32px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      backdrop-filter:saturate(150%) blur(10px);
      background:rgba(255,255,255,.92);
      border-bottom:1px solid rgba(220,229,239,.9);
      box-shadow:0 2px 12px rgba(39,63,84,.04);
    }
    .header-inner{
      min-height:64px;
      display:flex;
      align-items:center;
      gap:18px;
      padding:10px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      flex:0 0 auto;
      min-width:0;
      font-weight:700;
      color:var(--text);
      letter-spacing:.2px;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:12px;
      background:linear-gradient(135deg,#f7fbfe,#e6f2f7);
      border:1px solid var(--line);
      display:grid;
      place-items:center;
      color:var(--primary);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.8);
      flex:0 0 auto;
    }
    .brand-mark svg{width:22px;height:22px}
    .brand-name{
      display:flex;
      flex-direction:column;
      line-height:1.15;
      min-width:0;
    }
    .brand-name strong{
      font-size:15px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-name span{
      font-size:12px;
      color:var(--text-3);
      font-weight:500;
    }

    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      margin-left:10px;
      padding:6px;
      border-radius:999px;
      background:var(--surface-2);
      border:1px solid var(--line-2);
      overflow:auto;
      scrollbar-width:none;
      flex:1 1 auto;
    }
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      height:38px;
      padding:0 16px;
      border-radius:999px;
      color:var(--text-2);
      font-size:14px;
      font-weight:600;
      white-space:nowrap;
      flex:0 0 auto;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      background:#fff;
      color:var(--primary);
      outline:none;
      box-shadow:0 4px 14px rgba(63,110,143,.08);
    }
    .nav-links a.active,
    .nav-links a[aria-current="page"]{
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      box-shadow:0 10px 20px rgba(63,110,143,.18);
    }

    .header-tools{
      display:flex;
      align-items:center;
      gap:12px;
      flex:0 0 auto;
      margin-left:auto;
    }
    .search-box{
      position:relative;
      width:min(250px,28vw);
    }
    .search-box input{
      width:100%;
      height:42px;
      padding:0 16px 0 40px;
      border-radius:999px;
      border:1px solid var(--line);
      background:var(--surface);
      color:var(--text);
      outline:none;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.7);
      transition:border-color var(--transition),box-shadow var(--transition),transform var(--transition);
    }
    .search-box input::placeholder{color:#8ba0b3}
    .search-box input:focus{
      border-color:rgba(63,110,143,.55);
      box-shadow:0 0 0 4px rgba(63,110,143,.12);
    }
    .search-icon{
      position:absolute;
      left:14px;
      top:50%;
      transform:translateY(-50%);
      color:#8ca0b2;
      pointer-events:none;
      width:16px;height:16px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      height:42px;
      padding:0 18px;
      border-radius:12px;
      border:1px solid transparent;
      font-weight:700;
      font-size:14px;
      cursor:pointer;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition),opacity var(--transition);
      white-space:nowrap;
      user-select:none;
    }
    .btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(79,177,200,.18)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 12px 24px rgba(63,110,143,.18);
    }
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 28px rgba(63,110,143,.22)}
    .btn-primary:active{transform:translateY(0)}
    .btn-ghost{
      color:var(--primary);
      background:#fff;
      border-color:var(--line);
    }
    .btn-ghost:hover{
      border-color:rgba(63,110,143,.35);
      box-shadow:0 10px 22px rgba(63,110,143,.08);
      transform:translateY(-1px);
    }

    .hero{
      position:relative;
      padding:40px 0 32px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:auto -12% 0 auto;
      width:42vw;
      height:42vw;
      max-width:580px;
      max-height:580px;
      background:
        radial-gradient(circle at 30% 30%, rgba(79,177,200,.15), transparent 40%),
        radial-gradient(circle at 70% 30%, rgba(63,110,143,.14), transparent 40%),
        linear-gradient(135deg, rgba(232,242,248,.9), rgba(247,251,254,.2));
      border-radius:50%;
      filter:blur(8px);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);
      gap:28px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary);
      font-size:13px;
      font-weight:700;
      margin-bottom:16px;
    }
    .eyebrow-dot{
      width:8px;height:8px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(79,177,200,.12);
    }
    .hero h1{
      margin:0;
      font-size:clamp(30px,4vw,52px);
      line-height:1.12;
      letter-spacing:-.4px;
      color:var(--text);
    }
    .hero h1 span{
      color:var(--primary);
    }
    .hero p.lead{
      margin:18px 0 0;
      font-size:17px;
      color:var(--text-2);
      max-width:44em;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .trust-row{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:24px;
      color:var(--text-3);
      font-size:13px;
    }
    .trust-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.82);
      border:1px solid var(--line-2);
      box-shadow:var(--shadow-sm);
    }
    .trust-pill i{
      width:8px;height:8px;border-radius:50%;
      background:var(--accent);
      display:inline-block;
    }

    .hero-panel{
      position:relative;
      background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(248,251,253,.95));
      border:1px solid var(--line);
      border-radius:24px;
      box-shadow:var(--shadow);
      padding:22px;
    }
    .panel-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:16px;
      margin-bottom:18px;
    }
    .panel-title{
      font-size:15px;
      font-weight:800;
      color:var(--text);
      margin:0;
    }
    .panel-sub{
      font-size:13px;
      color:var(--text-3);
      margin-top:6px;
    }
    .panel-badge{
      padding:8px 10px;
      border-radius:12px;
      background:var(--accent-soft);
      color:#2c8093;
      font-size:12px;
      font-weight:700;
      border:1px solid rgba(79,177,200,.18);
      white-space:nowrap;
    }
    .panel-graphic{
      border-radius:20px;
      background:
        linear-gradient(135deg, rgba(63,110,143,.08), rgba(79,177,200,.12)),
        linear-gradient(180deg,#fff,#f8fbfd);
      border:1px solid var(--line-2);
      padding:18px;
      min-height:320px;
      position:relative;
      overflow:hidden;
    }
    .graphic-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:14px;
      height:100%;
      min-height:280px;
    }
    .metric-card,.content-card{
      background:rgba(255,255,255,.9);
      border:1px solid rgba(220,229,239,.9);
      border-radius:18px;
      box-shadow:0 10px 24px rgba(40,68,92,.06);
      padding:16px;
    }
    .metric-card{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:132px;
    }
    .metric-value{
      font-size:32px;
      line-height:1;
      font-weight:800;
      color:var(--primary);
      letter-spacing:-.6px;
    }
    .metric-label{
      margin-top:10px;
      color:var(--text-2);
      font-size:13px;
      line-height:1.55;
    }
    .metric-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--text-2);
      font-size:12px;
      font-weight:600;
    }
    .chip.active{
      background:var(--primary-soft);
      border-color:rgba(63,110,143,.18);
      color:var(--primary);
    }
    .content-card{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .content-card h3{
      margin:0;
      font-size:16px;
      line-height:1.35;
      color:var(--text);
    }
    .content-card p{
      margin:0;
      color:var(--text-2);
      font-size:13px;
      line-height:1.65;
    }
    .mini-list{
      display:grid;
      gap:10px;
      margin-top:auto;
    }
    .mini-item{
      display:flex;
      align-items:flex-start;
      gap:10px;
      padding:10px 12px;
      background:var(--surface-2);
      border:1px solid var(--line-2);
      border-radius:14px;
      font-size:13px;
      color:var(--text-2);
    }
    .mini-item svg{
      flex:0 0 auto;
      width:16px;height:16px;
      color:var(--accent);
      margin-top:2px;
    }

    .section{
      padding:var(--space-2xl) 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:28px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(24px,2.8vw,36px);
      line-height:1.16;
      letter-spacing:-.3px;
    }
    .section-head p{
      margin:0;
      max-width:58ch;
      color:var(--text-2);
      font-size:15px;
    }

    .intro-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
    }
    .info-card{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
      padding:22px;
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .info-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(63,110,143,.22);
    }
    .info-icon{
      width:44px;
      height:44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:var(--primary-soft);
      color:var(--primary);
      margin-bottom:16px;
    }
    .info-icon svg{width:21px;height:21px}
    .info-card h3{
      margin:0 0 10px;
      font-size:18px;
      line-height:1.35;
    }
    .info-card p{
      margin:0;
      color:var(--text-2);
      font-size:14px;
      line-height:1.7;
    }

    .two-col{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:20px;
      align-items:start;
    }
    .solution-box{
      background:linear-gradient(180deg,#fff, #f9fbfd);
      border:1px solid var(--line);
      border-radius:24px;
      padding:26px;
      box-shadow:var(--shadow-sm);
    }
    .solution-list{
      display:grid;
      gap:14px;
      margin-top:18px;
    }
    .solution-step{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:16px;
      border-radius:18px;
      background:var(--surface-2);
      border:1px solid var(--line-2);
    }
    .step-num{
      width:34px;height:34px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      display:grid;
      place-items:center;
      font-weight:800;
      font-size:13px;
      box-shadow:0 10px 18px rgba(63,110,143,.16);
      flex:0 0 auto;
    }
    .solution-step h3{
      margin:0 0 6px;
      font-size:16px;
    }
    .solution-step p{
      margin:0;
      color:var(--text-2);
      font-size:14px;
      line-height:1.7;
    }

    .results-grid{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:18px;
    }
    .result-band{
      grid-column:span 4;
      background:linear-gradient(180deg,#ffffff,#fbfdff);
      border:1px solid var(--line);
      border-radius:22px;
      padding:22px;
      box-shadow:var(--shadow-sm);
      min-height:170px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .result-band strong{
      font-size:34px;
      line-height:1;
      letter-spacing:-.6px;
      color:var(--primary);
    }
    .result-band span{
      display:block;
      margin-top:10px;
      color:var(--text-2);
      font-size:14px;
      line-height:1.65;
    }
    .case-preview{
      grid-column:span 8;
      background:
        linear-gradient(135deg, rgba(63,110,143,.06), rgba(79,177,200,.08)),
        #fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:24px;
      box-shadow:var(--shadow-sm);
    }
    .case-list{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      margin-top:18px;
    }
    .case-item{
      padding:16px;
      background:rgba(255,255,255,.82);
      border:1px solid var(--line-2);
      border-radius:18px;
    }
    .case-item .label{
      display:inline-flex;
      margin-bottom:10px;
      padding:6px 10px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#2d7c92;
      font-size:12px;
      font-weight:700;
    }
    .case-item h3{
      margin:0 0 8px;
      font-size:16px;
    }
    .case-item p{
      margin:0;
      color:var(--text-2);
      font-size:13px;
      line-height:1.65;
    }

    .testimonials-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .quote-card{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:22px;
      padding:22px;
      box-shadow:var(--shadow-sm);
      position:relative;
    }
    .quote-card::before{
      content:"“";
      position:absolute;
      top:12px;
      right:18px;
      font-size:58px;
      color:rgba(63,110,143,.12);
      line-height:1;
      font-family:serif;
    }
    .quote-card p{
      margin:0 0 18px;
      color:var(--text-2);
      font-size:14px;
      line-height:1.8;
    }
    .person{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .avatar{
      width:42px;height:42px;
      border-radius:50%;
      background:linear-gradient(135deg,#dbeaf4,#f5fbfe);
      border:1px solid var(--line-2);
      display:grid;
      place-items:center;
      color:var(--primary);
      font-weight:800;
    }
    .person strong{
      display:block;
      font-size:14px;
      margin-bottom:2px;
    }
    .person span{
      color:var(--text-3);
      font-size:12px;
    }

    .faq-wrap{
      display:grid;
      gap:12px;
    }
    details.faq-item{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    details.faq-item[open]{
      border-color:rgba(63,110,143,.25);
      box-shadow:var(--shadow);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 20px;
      font-weight:700;
      font-size:15px;
      color:var(--text);
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:28px;height:28px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:var(--surface-2);
      border:1px solid var(--line-2);
      color:var(--text-2);
      flex:0 0 auto;
      transition:transform var(--transition),background var(--transition),color var(--transition);
    }
    details[open] summary::after{
      content:"–";
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
    }
    .faq-body{
      padding:0 20px 18px;
      color:var(--text-2);
      font-size:14px;
      line-height:1.75;
      border-top:1px solid var(--line-2);
    }
    .faq-body p{margin:16px 0 0}

    .category-top{
      padding:24px 0 8px;
    }
    .category-hero{
      background:
        linear-gradient(135deg, rgba(63,110,143,.06), rgba(79,177,200,.10)),
        linear-gradient(180deg,#ffffff,#fbfdff);
      border:1px solid var(--line);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:28px;
    }
    .category-hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);
      gap:22px;
      align-items:center;
    }
    .category-hero h1{
      margin:0;
      font-size:clamp(28px,3.4vw,44px);
      line-height:1.12;
      letter-spacing:-.3px;
    }
    .category-hero p{
      margin:14px 0 0;
      color:var(--text-2);
      font-size:15px;
      max-width:58ch;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .topic-panel{
      background:rgba(255,255,255,.9);
      border:1px solid var(--line-2);
      border-radius:22px;
      padding:20px;
    }
    .topic-panel h2{
      margin:0 0 14px;
      font-size:16px;
      line-height:1.35;
    }
    .topic-list{
      display:grid;
      gap:10px;
    }
    .topic-item{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:center;
      padding:12px 14px;
      border-radius:14px;
      background:var(--surface-2);
      border:1px solid var(--line-2);
      color:var(--text-2);
      font-size:13px;
    }
    .topic-item strong{
      color:var(--text);
      font-size:13px;
    }

    .content-toolbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:16px 0 10px;
    }
    .sort-tabs{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .sort-tab{
      padding:9px 14px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--text-2);
      font-size:13px;
      font-weight:700;
    }
    .sort-tab.active{
      background:var(--primary-soft);
      border-color:rgba(63,110,143,.2);
      color:var(--primary);
    }
    .content-note{
      color:var(--text-3);
      font-size:13px;
    }

    .featured-layout{
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
      gap:18px;
      margin-top:8px;
    }
    .featured-card{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:24px;
      box-shadow:var(--shadow);
      overflow:hidden;
      display:grid;
      grid-template-columns:1fr 320px;
      min-height:360px;
    }
    .featured-copy{
      padding:28px;
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .featured-copy h2{
      margin:0;
      font-size:28px;
      line-height:1.2;
    }
    .featured-copy p{
      margin:0;
      color:var(--text-2);
      font-size:15px;
      line-height:1.75;
    }
    .feature-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:auto;
    }
    .feature-side{
      background:
        linear-gradient(180deg, rgba(232,242,248,.8), rgba(249,251,253,.95));
      border-left:1px solid var(--line-2);
      padding:22px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .feature-stack{
      display:grid;
      gap:12px;
    }
    .stack-item{
      background:#fff;
      border:1px solid var(--line-2);
      border-radius:18px;
      padding:14px;
    }
    .stack-item strong{
      display:block;
      font-size:14px;
      margin-bottom:6px;
    }
    .stack-item span{
      color:var(--text-2);
      font-size:13px;
      line-height:1.65;
    }
    .featured-card .btn{
      width:100%;
      margin-top:14px;
    }

    .article-list{
      display:grid;
      gap:16px;
    }
    .article-card{
      display:grid;
      grid-template-columns:180px minmax(0,1fr);
      gap:18px;
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:22px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .article-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(63,110,143,.24);
    }
    .article-thumb{
      background:
        linear-gradient(135deg, rgba(63,110,143,.11), rgba(79,177,200,.16)),
        linear-gradient(180deg,#fff,#eef5fa);
      min-height:170px;
      position:relative;
    }
    .article-thumb::after{
      content:"";
      position:absolute;
      inset:18px;
      border-radius:16px;
      border:1px dashed rgba(63,110,143,.25);
    }
    .article-body{
      padding:20px 20px 20px 0;
    }
    .article-body h3{
      margin:0 0 10px;
      font-size:18px;
      line-height:1.38;
    }
    .article-body p{
      margin:0;
      color:var(--text-2);
      font-size:14px;
      line-height:1.7;
    }
    .article-foot{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }
    .article-foot .chip{
      background:#fff;
    }

    .cta{
      padding:0 0 80px;
    }
    .cta-box{
      background:
        linear-gradient(135deg, rgba(63,110,143,.08), rgba(79,177,200,.12)),
        linear-gradient(180deg,#ffffff,#f8fbfd);
      border:1px solid rgba(63,110,143,.16);
      border-radius:28px;
      padding:30px;
      box-shadow:var(--shadow);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .cta-box h2{
      margin:0;
      font-size:30px;
      line-height:1.16;
    }
    .cta-box p{
      margin:12px 0 0;
      color:var(--text-2);
      max-width:58ch;
      font-size:15px;
      line-height:1.75;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      flex:0 0 auto;
    }

    .site-footer{
      background:linear-gradient(180deg,#fbfdff,#f6f9fc);
      border-top:1px solid var(--line);
      padding:42px 0 24px;
      color:var(--text-2);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .9fr .9fr .9fr;
      gap:24px;
      padding-bottom:24px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      color:var(--text);
      margin-bottom:14px;
    }
    .site-footer h3{
      margin:4px 0 14px;
      font-size:15px;
      color:var(--text);
    }
    .site-footer p{
      margin:0;
      font-size:14px;
      line-height:1.8;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--text-2);
      font-size:14px;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:var(--primary);
      outline:none;
    }
    .footer-bottom{
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:12px;
      padding-top:18px;
      border-top:1px solid var(--line-2);
      font-size:13px;
      color:var(--text-3);
    }

    .section-divider{
      margin-top:8px;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(63,110,143,.18), transparent);
    }

    @media (max-width: 1180px){
      .hero-grid,
      .category-hero-grid,
      .two-col{
        grid-template-columns:1fr;
      }
      .featured-layout{
        grid-template-columns:1fr;
      }
      .featured-card{
        grid-template-columns:1fr;
      }
      .feature-side{
        border-left:none;
        border-top:1px solid var(--line-2);
      }
      .intro-grid,
      .testimonials-grid,
      .footer-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .results-grid{
        grid-template-columns:repeat(6,1fr);
      }
      .result-band{grid-column:span 3}
      .case-preview{grid-column:span 6}
      .case-list{grid-template-columns:repeat(2,minmax(0,1fr))}
      .header-tools{margin-left:0}
      .search-box{width:min(220px,26vw)}
    }

    @media (max-width: 860px){
      .header-inner{
        flex-wrap:wrap;
        gap:10px;
      }
      .nav-links{
        order:3;
        width:100%;
        margin-left:0;
      }
      .header-tools{
        margin-left:auto;
      }
      .search-box{
        width:min(56vw,260px);
      }
      .intro-grid,
      .testimonials-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .results-grid{
        grid-template-columns:1fr;
      }
      .result-band,
      .case-preview{
        grid-column:span 1;
      }
      .article-card{
        grid-template-columns:1fr;
      }
      .article-body{
        padding:0 20px 20px;
      }
      .cta-box{
        flex-direction:column;
        align-items:flex-start;
      }
    }

    @media (max-width: 560px){
      .container{
        width:min(calc(100% - 20px),var(--container));
      }
      .site-header{
        position:sticky;
      }
      .brand-name strong{
        font-size:14px;
      }
      .brand-name span{
        display:none;
      }
      .search-box{
        display:none;
      }
      .hero{
        padding:28px 0 24px;
      }
      .hero p.lead,
      .category-hero p,
      .section-head p,
      .solution-step p,
      .article-body p,
      .quote-card p,
      .cta-box p{
        font-size:14px;
      }
      .section{
        padding:64px 0;
      }
      .hero-actions,
      .cta-actions,
      .trust-row,
      .tag-row{
        gap:10px;
      }
      .btn{
        height:40px;
        padding:0 16px;
      }
      .nav-links{
        padding:5px;
      }
      .nav-links a{
        height:36px;
        padding:0 13px;
        font-size:13px;
      }
      .hero-panel,
      .category-hero,
      .solution-box,
      .cta-box{
        padding:18px;
        border-radius:22px;
      }
      .panel-graphic{
        padding:14px;
        min-height:auto;
      }
      .graphic-grid{
        grid-template-columns:1fr;
        min-height:auto;
      }
      .case-list{
        grid-template-columns:1fr;
      }
      .content-toolbar{
        flex-direction:column;
        align-items:flex-start;
      }
      .sort-tabs{
        width:100%;
        overflow:auto;
        scrollbar-width:none;
        flex-wrap:nowrap;
      }
      .sort-tabs::-webkit-scrollbar{display:none}
      .sort-tab{
        flex:0 0 auto;
      }
    }