/* roulang page: index */
:root {
      --lime: #B8E84A;
      --lime-dark: #86B520;
      --carbon: #15191B;
      --carbon-2: #22282B;
      --white: #FFFFFF;
      --cold: #F5F7F3;
      --muted: #647276;
      --line: #DCE3DC;
      --warn: #F27645;
      --soft: #EEF3E9;
      --shadow: 0 18px 45px rgba(21, 25, 27, .10);
      --shadow-sm: 0 8px 22px rgba(21, 25, 27, .08);
      --radius: 12px;
      --radius-sm: 8px;
      --container: 1240px;
      --header-h: 118px;
      --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 130px;
    }

    body {
      margin: 0;
      font-family: var(--font);
      color: var(--carbon);
      background: var(--cold);
      line-height: 1.7;
      overflow-x: hidden;
      text-rendering: optimizeLegibility;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      display: block;
      max-width: 100%;
      height: auto;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

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

    :focus-visible {
      outline: 3px solid rgba(184, 232, 74, .85);
      outline-offset: 3px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(21, 25, 27, .96);
      color: var(--white);
      border-bottom: 1px solid rgba(255,255,255,.08);
      backdrop-filter: blur(10px);
    }

    .topbar {
      border-bottom: 1px solid rgba(255,255,255,.10);
      font-size: 13px;
      color: rgba(255,255,255,.78);
    }

    .topbar-inner,
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .topbar-inner {
      min-height: 40px;
    }

    .topbar-list {
      display: flex;
      align-items: center;
      gap: 18px;
      flex-wrap: wrap;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .topbar-item {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      white-space: nowrap;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 99px;
      background: var(--lime);
      box-shadow: 0 0 0 4px rgba(184,232,74,.18);
      flex: 0 0 auto;
    }

    .nav-inner {
      min-height: 76px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      letter-spacing: 0;
      min-width: max-content;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      color: var(--carbon);
      background: var(--lime);
      font-weight: 900;
      box-shadow: inset 0 -4px 0 rgba(21,25,27,.12);
    }

    .brand-text {
      display: grid;
      line-height: 1.2;
    }

    .brand-text strong {
      font-size: 18px;
    }

    .brand-text span {
      font-size: 12px;
      color: rgba(255,255,255,.66);
      font-weight: 600;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 4px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .nav-link {
      display: inline-flex;
      min-height: 44px;
      align-items: center;
      padding: 0 13px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 700;
      color: rgba(255,255,255,.82);
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      background: rgba(184,232,74,.12);
      color: var(--lime);
    }

    .nav-link:active {
      transform: translateY(1px);
    }

    .nav-cta {
      margin-left: 8px;
    }

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 10px;
      border: 1px solid rgba(255,255,255,.18);
      color: var(--white);
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 20px;
      height: 2px;
      background: currentColor;
      border-radius: 9px;
      position: relative;
      transition: transform .2s ease;
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }

    .menu-toggle span::before {
      top: -7px;
    }

    .menu-toggle span::after {
      top: 7px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 20px;
      border-radius: 10px;
      font-weight: 800;
      font-size: 15px;
      border: 1px solid transparent;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--lime);
      color: var(--carbon);
      box-shadow: 0 10px 25px rgba(184,232,74,.28);
    }

    .btn-primary:hover {
      background: #c7f45e;
      transform: translateY(-2px);
      box-shadow: 0 16px 32px rgba(184,232,74,.34);
    }

    .btn-primary:active,
    .btn-secondary:active,
    .btn-dark:active {
      transform: translateY(0);
    }

    .btn-secondary {
      background: rgba(255,255,255,.08);
      color: var(--white);
      border-color: rgba(255,255,255,.35);
    }

    .btn-secondary:hover {
      background: rgba(255,255,255,.16);
      border-color: rgba(255,255,255,.55);
      transform: translateY(-2px);
    }

    .btn-dark {
      background: var(--carbon);
      color: var(--white);
      border-color: var(--carbon);
    }

    .btn-dark:hover {
      background: #000;
      transform: translateY(-2px);
    }

    .btn-line {
      color: var(--carbon);
      border-color: var(--line);
      background: var(--white);
    }

    .btn-line:hover {
      border-color: var(--carbon);
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }

    .btn:disabled {
      cursor: not-allowed;
      opacity: .55;
      transform: none;
      box-shadow: none;
    }

    main {
      background: var(--cold);
    }

    section {
      padding: 86px 0;
      position: relative;
    }

    .section-head {
      display: grid;
      gap: 14px;
      margin-bottom: 34px;
      max-width: 850px;
    }

    .section-kicker {
      display: inline-flex;
      width: fit-content;
      align-items: center;
      gap: 8px;
      padding: 6px 10px;
      border-radius: 999px;
      color: var(--carbon);
      background: var(--soft);
      border: 1px solid var(--line);
      font-size: 13px;
      font-weight: 800;
    }

    .section-kicker::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--lime);
    }

    h1,
    h2,
    h3,
    p {
      margin: 0;
    }

    h1 {
      font-size: clamp(38px, 5vw, 68px);
      line-height: 1.08;
      font-weight: 950;
      max-width: 900px;
    }

    h2 {
      font-size: clamp(28px, 3vw, 44px);
      line-height: 1.18;
      font-weight: 920;
    }

    h3 {
      font-size: 20px;
      line-height: 1.35;
      font-weight: 880;
    }

    .lead {
      color: var(--muted);
      font-size: 17px;
      max-width: 860px;
    }

    .hero {
      min-height: calc(100vh - var(--header-h) - 56px);
      padding: 0;
      color: var(--white);
      overflow: hidden;
      background: var(--carbon);
    }

    .hero-track {
      position: relative;
      min-height: calc(100vh - var(--header-h) - 56px);
    }

    .hero-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      pointer-events: none;
      transition: opacity .55s ease;
      background-size: cover;
      background-position: center;
    }

    .hero-slide.active {
      opacity: 1;
      pointer-events: auto;
    }

    .hero-slide::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(21,25,27,.82), rgba(21,25,27,.48) 54%, rgba(21,25,27,.30));
    }

    .hero-content {
      position: relative;
      z-index: 2;
      min-height: calc(100vh - var(--header-h) - 56px);
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 74px 0 92px;
    }

    .hero-badge-row {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 20px;
    }

    .burst {
      display: inline-flex;
      align-items: center;
      padding: 8px 12px;
      border-radius: 999px;
      background: var(--warn);
      color: var(--white);
      font-weight: 900;
      box-shadow: 0 14px 28px rgba(242,118,69,.25);
    }

    .hero-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,.25);
      background: rgba(255,255,255,.10);
      color: rgba(255,255,255,.92);
      font-size: 14px;
      font-weight: 700;
    }

    .hero p {
      max-width: 820px;
      margin-top: 22px;
      color: rgba(255,255,255,.86);
      font-size: 18px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 30px;
    }

    .hero-data {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
      margin-top: 34px;
    }

    .hero-data-item {
      min-width: 150px;
      padding: 14px 16px;
      border-left: 3px solid var(--lime);
      background: rgba(255,255,255,.09);
      border-radius: 8px;
    }

    .hero-data-item strong {
      display: block;
      color: var(--lime);
      font-size: 28px;
      line-height: 1.1;
    }

    .hero-data-item span {
      display: block;
      margin-top: 4px;
      color: rgba(255,255,255,.76);
      font-size: 13px;
    }

    .hero-controls {
      position: absolute;
      z-index: 4;
      left: 50%;
      bottom: 24px;
      transform: translateX(-50%);
      width: min(100% - 40px, var(--container));
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .hero-arrows {
      display: flex;
      gap: 10px;
    }

    .hero-arrow {
      width: 46px;
      height: 46px;
      border-radius: 999px;
      color: var(--white);
      background: rgba(255,255,255,.14);
      border: 1px solid rgba(255,255,255,.30);
      transition: background .2s ease, transform .2s ease;
    }

    .hero-arrow:hover {
      background: rgba(184,232,74,.22);
      transform: translateY(-2px);
    }

    .hero-dots {
      display: flex;
      gap: 9px;
      align-items: center;
    }

    .hero-dot {
      width: 34px;
      height: 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.35);
      transition: width .2s ease, background .2s ease;
    }

    .hero-dot.active {
      width: 54px;
      background: var(--lime);
    }

    .metrics {
      padding-top: 54px;
      background: var(--white);
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }

    .metric-item {
      padding: 24px;
      min-height: 168px;
      border-right: 1px solid var(--line);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 14px;
    }

    .metric-item:last-child {
      border-right: 0;
    }

    .metric-num {
      white-space: nowrap;
      color: var(--carbon);
      font-size: 34px;
      font-weight: 950;
      line-height: 1;
    }

    .metric-num small {
      font-size: 15px;
      color: var(--muted);
      margin-left: 4px;
      font-weight: 800;
    }

    .metric-label {
      color: var(--muted);
      font-size: 14px;
    }

    .overview {
      background: linear-gradient(180deg, var(--white), var(--cold));
    }

    .overview-layout {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 42px;
      align-items: center;
    }

    .image-panel {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--carbon);
      min-height: 420px;
      box-shadow: var(--shadow);
    }

    .image-panel img {
      width: 100%;
      height: 100%;
      min-height: 420px;
      object-fit: cover;
    }

    .image-caption {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      padding: 14px 16px;
      border-radius: 10px;
      background: rgba(21,25,27,.78);
      color: var(--white);
      border: 1px solid rgba(255,255,255,.16);
    }

    .param-board {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-top: 24px;
    }

    .param {
      padding: 16px;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
    }

    .param b {
      display: block;
      font-size: 15px;
    }

    .param span {
      display: block;
      margin-top: 6px;
      color: var(--muted);
      font-size: 14px;
    }

    .service {
      background: var(--carbon);
      color: var(--white);
    }

    .service .lead,
    .service .section-kicker {
      color: rgba(255,255,255,.78);
    }

    .service .section-kicker {
      background: rgba(255,255,255,.08);
      border-color: rgba(255,255,255,.16);
    }

    .service-matrix {
      display: grid;
      grid-template-columns: 1.1fr 1fr 1fr;
      gap: 14px;
    }

    .service-unit {
      min-height: 230px;
      padding: 24px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.07);
      border: 1px solid rgba(255,255,255,.13);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .service-unit:hover {
      transform: translateY(-4px);
      border-color: rgba(184,232,74,.55);
      background: rgba(255,255,255,.10);
    }

    .service-unit.feature {
      grid-row: span 2;
      background: linear-gradient(180deg, rgba(184,232,74,.18), rgba(255,255,255,.07));
    }

    .unit-no {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: var(--lime);
      color: var(--carbon);
      font-weight: 950;
    }

    .service-unit p {
      margin-top: 12px;
      color: rgba(255,255,255,.72);
      font-size: 15px;
    }

    .unit-link {
      margin-top: 18px;
      color: var(--lime);
      font-weight: 850;
    }

    .combo {
      background: var(--cold);
    }

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

    .product-card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: 0 1px 0 rgba(21,25,27,.04);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .product-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow);
      border-color: rgba(184,232,74,.75);
    }

    .product-card img {
      width: 100%;
      height: 210px;
      object-fit: cover;
      background: var(--soft);
    }

    .product-body {
      padding: 22px;
      display: grid;
      gap: 12px;
    }

    .tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 9px;
      border-radius: 999px;
      background: var(--soft);
      color: var(--carbon);
      border: 1px solid var(--line);
      font-size: 12px;
      font-weight: 800;
    }

    .result {
      background: var(--carbon);
      color: var(--white);
      overflow: hidden;
    }

    .result-wrap {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 36px;
      align-items: center;
    }

    .result-photo {
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid rgba(255,255,255,.14);
      box-shadow: 0 20px 45px rgba(0,0,0,.25);
    }

    .result-photo img {
      width: 100%;
      height: 460px;
      object-fit: cover;
    }

    .compare {
      border: 1px solid rgba(255,255,255,.16);
      border-radius: var(--radius);
      overflow: hidden;
      background: rgba(255,255,255,.06);
    }

    .compare-row {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      border-bottom: 1px solid rgba(255,255,255,.13);
    }

    .compare-row:last-child {
      border-bottom: 0;
    }

    .compare-cell {
      padding: 17px;
      border-right: 1px solid rgba(255,255,255,.13);
      color: rgba(255,255,255,.75);
      font-size: 14px;
    }

    .compare-cell:last-child {
      border-right: 0;
    }

    .compare-head .compare-cell {
      color: var(--white);
      font-weight: 900;
      background: rgba(184,232,74,.12);
    }

    .compare-cell.good {
      color: var(--lime);
      font-weight: 850;
    }

    .timeline {
      background: var(--white);
    }

    .time-flow {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 0;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--white);
    }

    .time-step {
      padding: 22px 18px;
      border-right: 1px solid var(--line);
      position: relative;
      min-height: 210px;
    }

    .time-step:last-child {
      border-right: 0;
    }

    .time-step b {
      display: inline-flex;
      width: 34px;
      height: 34px;
      border-radius: 10px;
      background: var(--carbon);
      color: var(--lime);
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    .time-step p {
      color: var(--muted);
      margin-top: 10px;
      font-size: 14px;
    }

    .scenes {
      background: var(--cold);
    }

    .scene-layout {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 26px;
      align-items: stretch;
    }

    .scene-tabs {
      display: grid;
      gap: 10px;
    }

    .scene-tab {
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: var(--white);
      text-align: left;
      transition: border-color .2s ease, background .2s ease, transform .2s ease;
    }

    .scene-tab:hover,
    .scene-tab.active {
      border-color: var(--lime-dark);
      background: #FBFFF3;
      transform: translateX(3px);
    }

    .scene-tab b {
      display: block;
      font-size: 17px;
    }

    .scene-tab span {
      display: block;
      color: var(--muted);
      margin-top: 5px;
      font-size: 14px;
    }

    .scene-stage {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .scene-stage img {
      width: 100%;
      height: 360px;
      object-fit: cover;
    }

    .scene-info {
      padding: 24px;
      display: grid;
      gap: 12px;
    }

    .platform {
      background: var(--white);
    }

    .platform-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 28px;
      align-items: start;
    }

    .monitor {
      background: var(--carbon);
      color: var(--white);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow);
    }

    .monitor-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(255,255,255,.14);
      margin-bottom: 16px;
    }

    .monitor-title span {
      display: block;
      color: rgba(255,255,255,.62);
      font-size: 13px;
      margin-top: 3px;
    }

    .state-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border-radius: 999px;
      padding: 8px 11px;
      background: rgba(184,232,74,.15);
      color: var(--lime);
      font-size: 13px;
      font-weight: 850;
      white-space: nowrap;
    }

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

    .bar-row {
      display: grid;
      gap: 7px;
    }

    .bar-row label {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: rgba(255,255,255,.82);
      font-size: 14px;
    }

    .bar {
      height: 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.12);
      overflow: hidden;
    }

    .bar i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: var(--lime);
    }

    .safety-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .check-item {
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: var(--cold);
    }

    .check-item b {
      display: block;
    }

    .check-item span {
      display: block;
      margin-top: 6px;
      color: var(--muted);
      font-size: 14px;
    }

    .stories {
      background: var(--cold);
    }

    .story-layout {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 18px;
    }

    .story-card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 24px;
      display: grid;
      gap: 16px;
    }

    .story-card.large {
      grid-row: span 2;
      min-height: 430px;
      background: linear-gradient(180deg, #FFFFFF, #F1F6EC);
    }

    .story-fields {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
    }

    .field-chip {
      padding: 12px;
      border-radius: 8px;
      background: var(--soft);
      border: 1px solid var(--line);
      font-size: 14px;
    }

    .field-chip b {
      display: block;
      font-size: 13px;
      color: var(--muted);
    }

    .reviews {
      background: var(--white);
    }

    .review-band {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr;
      gap: 16px;
    }

    .review-card {
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: var(--white);
      box-shadow: 0 1px 0 rgba(21,25,27,.03);
    }

    .review-card.feature {
      background: var(--carbon);
      color: var(--white);
    }

    .review-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 15px;
    }

    .avatar {
      width: 42px;
      height: 42px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: var(--lime);
      color: var(--carbon);
      font-weight: 950;
      flex: 0 0 auto;
    }

    .review-meta span {
      display: block;
      color: var(--muted);
      font-size: 13px;
    }

    .review-card.feature .review-meta span,
    .review-card.feature p {
      color: rgba(255,255,255,.74);
    }

    .insights {
      background: var(--cold);
    }

    .news-list {
      display: grid;
      grid-template-columns: 1fr;
      gap: 12px;
    }

    .news-item {
      display: grid;
      grid-template-columns: 130px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 18px;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: var(--white);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .news-item:hover {
      transform: translateY(-3px);
      border-color: var(--lime-dark);
      box-shadow: var(--shadow-sm);
    }

    .news-date {
      color: var(--muted);
      font-weight: 850;
    }

    .news-item p {
      color: var(--muted);
      font-size: 14px;
      margin-top: 4px;
    }

    .quick {
      background: var(--white);
    }

    .quick-wrap {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 22px;
    }

    .quick-tabs {
      display: grid;
      gap: 10px;
      align-content: start;
    }

    .quick-tab {
      text-align: left;
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--line);
      background: var(--cold);
      font-weight: 850;
      transition: background .2s ease, border-color .2s ease;
    }

    .quick-tab.active,
    .quick-tab:hover {
      background: var(--carbon);
      color: var(--white);
      border-color: var(--carbon);
    }

    .quick-panel {
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: var(--cold);
      padding: 26px;
      min-height: 310px;
    }

    .quick-panel ul {
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .quick-panel li {
      padding-left: 22px;
      position: relative;
      color: var(--muted);
    }

    .quick-panel li::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--lime-dark);
      position: absolute;
      left: 0;
      top: .72em;
    }

    .faq {
      background: var(--cold);
    }

    .faq-list {
      display: grid;
      gap: 12px;
      max-width: 980px;
    }

    .faq-item {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--white);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 62px;
      padding: 18px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      text-align: left;
      font-weight: 900;
      color: var(--carbon);
      transition: background .2s ease;
    }

    .faq-question:hover {
      background: #FBFFF3;
    }

    .faq-question i {
      width: 28px;
      height: 28px;
      border-radius: 999px;
      background: var(--soft);
      flex: 0 0 auto;
      position: relative;
    }

    .faq-question i::before,
    .faq-question i::after {
      content: "";
      position: absolute;
      inset: 50% auto auto 50%;
      width: 12px;
      height: 2px;
      background: var(--carbon);
      transform: translate(-50%, -50%);
      border-radius: 4px;
    }

    .faq-question i::after {
      transform: translate(-50%, -50%) rotate(90deg);
      transition: transform .2s ease;
    }

    .faq-question[aria-expanded="true"] i::after {
      transform: translate(-50%, -50%) rotate(0);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      color: var(--muted);
    }

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

    .bottom-cta {
      padding: 64px 0;
      background: var(--carbon);
      color: var(--white);
    }

    .cta-strip {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 22px;
      align-items: center;
      padding: 28px;
      border-radius: var(--radius);
      border: 1px solid rgba(255,255,255,.14);
      background: linear-gradient(90deg, rgba(184,232,74,.18), rgba(255,255,255,.06));
    }

    .cta-strip p {
      margin-top: 10px;
      color: rgba(255,255,255,.74);
    }

    .contact {
      background: var(--white);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 28px;
      align-items: start;
    }

    .consult-form,
    .contact-card {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--cold);
      padding: 24px;
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .form-field {
      display: grid;
      gap: 7px;
    }

    .form-field.full {
      grid-column: 1 / -1;
    }

    .form-field label {
      font-weight: 850;
      font-size: 14px;
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      min-height: 46px;
      border: 1px solid var(--line);
      border-radius: 9px;
      background: var(--white);
      color: var(--carbon);
      padding: 10px 12px;
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .form-field textarea {
      min-height: 126px;
      resize: vertical;
    }

    .form-field input:hover,
    .form-field select:hover,
    .form-field textarea:hover {
      border-color: #B8C9B4;
    }

    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      outline: 0;
      border-color: var(--lime-dark);
      box-shadow: 0 0 0 4px rgba(184,232,74,.22);
    }

    .form-field.error input,
    .form-field.error select,
    .form-field.error textarea {
      border-color: var(--warn);
      box-shadow: 0 0 0 4px rgba(242,118,69,.14);
    }

    .error-text {
      display: none;
      color: var(--warn);
      font-size: 13px;
    }

    .form-field.error .error-text {
      display: block;
    }

    .form-actions {
      margin-top: 18px;
      display: flex;
      gap: 12px;
      align-items: center;
      flex-wrap: wrap;
    }

    .form-note {
      color: var(--muted);
      font-size: 13px;
    }

    .form-state {
      display: none;
      margin-top: 14px;
      padding: 12px;
      border-radius: 8px;
      border: 1px solid rgba(134,181,32,.35);
      background: #F3FBE4;
      color: #486A00;
      font-weight: 750;
    }

    .contact-list {
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .contact-row {
      padding: 14px;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 9px;
    }

    .contact-row b {
      display: block;
      font-size: 13px;
      color: var(--muted);
      margin-bottom: 4px;
    }

    .site-footer {
      background: var(--carbon);
      color: rgba(255,255,255,.76);
      padding: 46px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      gap: 28px;
      padding-bottom: 28px;
      border-bottom: 1px solid rgba(255,255,255,.10);
    }

    .footer-brand {
      color: var(--white);
      font-size: 20px;
      font-weight: 950;
      margin-bottom: 10px;
    }

    .footer-title {
      color: var(--white);
      font-weight: 900;
      margin-bottom: 10px;
    }

    .footer-links {
      display: grid;
      gap: 8px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .footer-links a:hover {
      color: var(--lime);
    }

    .copyright {
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
      font-size: 13px;
    }

    @media (max-width: 1100px) {
      .metric-grid {
        grid-template-columns: repeat(3, 1fr);
      }

      .metric-item {
        border-bottom: 1px solid var(--line);
      }

      .service-matrix,
      .product-rail,
      .review-band {
        grid-template-columns: repeat(2, 1fr);
      }

      .time-flow {
        grid-template-columns: repeat(3, 1fr);
      }

      .time-step {
        border-bottom: 1px solid var(--line);
      }

      .platform-grid,
      .overview-layout,
      .result-wrap,
      .scene-layout,
      .quick-wrap,
      .contact-grid,
      .story-layout {
        grid-template-columns: 1fr;
      }

      .nav-link {
        padding: 0 9px;
      }
    }

    @media (max-width: 900px) {
      :root {
        --header-h: 76px;
      }

      html {
        scroll-padding-top: 92px;
      }

      .topbar {
        display: none;
      }

      .nav-inner {
        min-height: 76px;
      }

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

      .nav-menu {
        position: fixed;
        left: 16px;
        right: 16px;
        top: 84px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 14px;
        background: var(--carbon);
        border: 1px solid rgba(255,255,255,.12);
        box-shadow: 0 20px 50px rgba(0,0,0,.26);
      }

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

      .nav-link {
        min-height: 48px;
        justify-content: flex-start;
      }

      .nav-cta {
        margin-left: 0;
        width: 100%;
      }

      .nav-cta .btn {
        width: 100%;
      }

      section {
        padding: 66px 0;
      }

      .hero,
      .hero-track,
      .hero-content {
        min-height: 620px;
      }

      .hero-content {
        padding: 70px 0 104px;
      }

      .hero-controls {
        bottom: 18px;
      }

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

      .metric-item:nth-child(2n) {
        border-right: 0;
      }

      .param-board,
      .safety-list,
      .story-fields,
      .form-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .form-field.full {
        grid-column: auto;
      }

      .cta-strip {
        grid-template-columns: 1fr;
      }

      .news-item {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 620px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .brand-text strong {
        font-size: 16px;
      }

      .brand-text span {
        display: none;
      }

      h1 {
        font-size: 36px;
      }

      h2 {
        font-size: 28px;
      }

      .hero p,
      .lead {
        font-size: 16px;
      }

      .hero-actions,
      .form-actions {
        align-items: stretch;
      }

      .hero-actions .btn,
      .form-actions .btn {
        width: 100%;
      }

      .hero-controls {
        align-items: flex-end;
      }

      .hero-dot {
        width: 24px;
      }

      .hero-dot.active {
        width: 38px;
      }

      .hero-arrow {
        width: 42px;
        height: 42px;
      }

      .metric-grid,
      .service-matrix,
      .product-rail,
      .review-band,
      .time-flow {
        grid-template-columns: 1fr;
      }

      .metric-item,
      .time-step {
        border-right: 0;
      }

      .result-photo img,
      .scene-stage img,
      .image-panel,
      .image-panel img {
        min-height: 280px;
        height: 280px;
      }

      .compare-row {
        grid-template-columns: 1fr;
      }

      .compare-cell {
        border-right: 0;
        border-bottom: 1px solid rgba(255,255,255,.13);
      }

      .compare-cell:last-child {
        border-bottom: 0;
      }

      .monitor-head,
      .copyright {
        align-items: flex-start;
        flex-direction: column;
      }
    }