/* roulang page: index */
:root {
      --bg: #f5f3ea;
      --bg-soft: #eef6ef;
      --surface: #ffffff;
      --surface-strong: #fbfff9;
      --text: #1c2521;
      --muted: #66736d;
      --primary: #21b978;
      --primary-dark: #12865a;
      --accent: #ff6b35;
      --accent-soft: #fff0e9;
      --lime: #d9ff5b;
      --cyan: #73e5d6;
      --border: rgba(31, 55, 44, 0.12);
      --shadow: 0 22px 60px rgba(30, 58, 45, 0.12);
      --shadow-soft: 0 12px 30px rgba(30, 58, 45, 0.08);
      --radius-xl: 30px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --sidebar: 282px;
      --ease: all .24s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--text);
      background:
        radial-gradient(circle at 82% 8%, rgba(115, 229, 214, .28), transparent 30%),
        radial-gradient(circle at 18% 28%, rgba(217, 255, 91, .22), transparent 26%),
        linear-gradient(135deg, #f8f5ec 0%, #eff8f1 54%, #f7fbf6 100%);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.72;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button,
    .button {
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(33, 185, 120, .35);
      outline-offset: 3px;
    }

    .site-shell {
      min-height: 100vh;
    }

    .side-nav {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--sidebar);
      padding: 28px 20px;
      background: rgba(255, 255, 255, .78);
      backdrop-filter: blur(24px);
      border-right: 1px solid var(--border);
      z-index: 50;
      display: flex;
      flex-direction: column;
      gap: 22px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px;
      border-radius: 20px;
      background: linear-gradient(135deg, rgba(33, 185, 120, .12), rgba(217, 255, 91, .22));
    }

    .brand-mark {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: #123a2a;
      font-weight: 900;
      background: linear-gradient(135deg, var(--lime), var(--cyan));
      box-shadow: 0 10px 22px rgba(33, 185, 120, .2);
    }

    .brand strong {
      display: block;
      font-size: 18px;
      line-height: 1.25;
      letter-spacing: -.02em;
    }

    .brand span {
      display: block;
      color: var(--muted);
      font-size: 12px;
      margin-top: 2px;
    }

    .nav-group {
      display: grid;
      gap: 10px;
    }

    .nav-label {
      color: var(--muted);
      font-size: 12px;
      letter-spacing: .12em;
      padding: 0 12px;
    }

    .nav-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      padding: 13px 14px;
      border-radius: 16px;
      color: #31413a;
      border: 1px solid transparent;
      font-weight: 700;
    }

    .nav-link:hover {
      transform: translateX(4px);
      background: rgba(33, 185, 120, .08);
      border-color: rgba(33, 185, 120, .16);
      color: var(--primary-dark);
    }

    .nav-link.active {
      background: #173a2b;
      color: #fff;
      box-shadow: 0 14px 28px rgba(18, 86, 58, .18);
    }

    .nav-link .dot {
      width: 9px;
      height: 9px;
      border-radius: 999px;
      background: currentColor;
      opacity: .45;
    }

    .sidebar-card {
      margin-top: auto;
      padding: 18px;
      border-radius: 22px;
      background: #172b23;
      color: #fff;
      overflow: hidden;
      position: relative;
      box-shadow: var(--shadow-soft);
    }

    .sidebar-card::after {
      content: "";
      position: absolute;
      width: 120px;
      height: 120px;
      right: -40px;
      top: -36px;
      border-radius: 999px;
      background: rgba(217, 255, 91, .28);
    }

    .sidebar-card p {
      color: rgba(255,255,255,.72);
      font-size: 14px;
      margin: 8px 0 16px;
      position: relative;
      z-index: 1;
    }

    .sidebar-card strong,
    .sidebar-card a {
      position: relative;
      z-index: 1;
    }

    .mobile-header {
      display: none;
      position: sticky;
      top: 0;
      z-index: 60;
      padding: 12px 14px;
      background: rgba(255,255,255,.9);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border);
    }

    .mobile-nav {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      padding-top: 10px;
      scrollbar-width: none;
    }

    .mobile-nav::-webkit-scrollbar {
      display: none;
    }

    .mobile-nav .nav-link {
      white-space: nowrap;
      padding: 10px 13px;
      font-size: 14px;
      background: rgba(33, 185, 120, .08);
    }

    .page-main {
      margin-left: var(--sidebar);
      padding: 28px;
    }

    .site-container {
      width: min(1180px, 100%);
      margin: 0 auto;
    }

    .section {
      margin: 28px 0;
    }

    .section-pad {
      padding: clamp(28px, 4vw, 58px);
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.72);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-soft);
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 24px;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(26px, 3vw, 42px);
      line-height: 1.15;
      letter-spacing: -.04em;
    }

    .section-head p {
      max-width: 560px;
      color: var(--muted);
      margin: 0;
      font-size: 16px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(33, 185, 120, .1);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 14px;
    }

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

    .btn-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 800;
      transition: var(--ease);
      line-height: 1;
    }

    .btn-primary {
      color: #10251c;
      background: linear-gradient(135deg, var(--lime), var(--cyan));
      box-shadow: 0 16px 34px rgba(33, 185, 120, .25);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 20px 42px rgba(33, 185, 120, .32);
      color: #10251c;
    }

    .btn-outline {
      color: var(--text);
      background: rgba(255,255,255,.68);
      border-color: var(--border);
    }

    .btn-outline:hover {
      transform: translateY(-3px);
      border-color: rgba(33, 185, 120, .4);
      color: var(--primary-dark);
      background: #fff;
    }

    .btn-dark {
      color: #fff;
      background: #173a2b;
      box-shadow: 0 14px 30px rgba(23,58,43,.18);
    }

    .btn-dark:hover {
      color: #fff;
      transform: translateY(-3px);
      background: #0f2c20;
    }

    .badge-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.72);
      border: 1px solid var(--border);
      color: #456058;
      font-size: 13px;
      font-weight: 700;
    }

    .hero {
      position: relative;
      overflow: hidden;
      border-radius: 36px;
      background:
        linear-gradient(118deg, rgba(23, 58, 43, .96) 0%, rgba(23, 58, 43, .92) 46%, transparent 46.2%),
        linear-gradient(135deg, #fff8e8 0%, #ebfff2 100%);
      color: #fff;
      min-height: 620px;
      box-shadow: var(--shadow);
    }

    .hero-grid {
      min-height: 620px;
      align-items: stretch;
    }

    .hero-copy {
      padding: clamp(32px, 5vw, 72px);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .hero h1 {
      max-width: 680px;
      margin: 0 0 18px;
      font-size: clamp(38px, 5vw, 72px);
      line-height: .98;
      letter-spacing: -.06em;
    }

    .hero-intro {
      max-width: 660px;
      color: rgba(255,255,255,.78);
      font-size: clamp(16px, 1.5vw, 19px);
      margin: 0 0 26px;
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 28px;
      max-width: 640px;
    }

    .hero-point {
      padding: 14px;
      border-radius: 18px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.14);
    }

    .hero-point strong {
      display: block;
      font-size: 22px;
      color: var(--lime);
      line-height: 1.1;
    }

    .hero-point span {
      display: block;
      color: rgba(255,255,255,.72);
      font-size: 13px;
      margin-top: 5px;
    }

    .hero-stage {
      padding: clamp(26px, 4vw, 54px);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .choice-stack {
      width: min(470px, 100%);
      display: grid;
      gap: 16px;
      transform: rotate(-1deg);
    }

    .choice-card {
      position: relative;
      padding: 20px;
      border-radius: 28px;
      background: rgba(255,255,255,.88);
      color: var(--text);
      border: 1px solid rgba(31, 55, 44, .1);
      box-shadow: var(--shadow-soft);
      transition: var(--ease);
    }

    .choice-card:hover {
      transform: translateY(-4px) rotate(1deg);
      box-shadow: var(--shadow);
    }

    .choice-card.featured {
      background: #ffffff;
      border: 2px solid rgba(33, 185, 120, .45);
      transform: scale(1.04);
      z-index: 2;
    }

    .choice-top {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: flex-start;
      margin-bottom: 12px;
    }

    .choice-card h3 {
      margin: 0;
      font-size: 22px;
      letter-spacing: -.03em;
    }

    .choice-card p {
      color: var(--muted);
      margin: 0 0 14px;
      font-size: 14px;
    }

    .mini-tag {
      display: inline-flex;
      align-items: center;
      padding: 5px 9px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: #b44821;
      font-weight: 900;
      font-size: 12px;
      white-space: nowrap;
    }

    .choice-list {
      display: grid;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
      color: #40514a;
      font-size: 14px;
    }

    .choice-list li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .choice-list li::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--primary);
      flex: 0 0 auto;
    }

    .compare-table-wrap {
      overflow-x: auto;
      border-radius: 24px;
      border: 1px solid var(--border);
      background: #fff;
    }

    .compare-table {
      width: 100%;
      min-width: 760px;
      border-collapse: separate;
      border-spacing: 0;
      margin: 0;
    }

    .compare-table th,
    .compare-table td {
      padding: 18px;
      border-bottom: 1px solid var(--border);
      text-align: left;
      vertical-align: top;
    }

    .compare-table th {
      background: #173a2b;
      color: #fff;
      font-size: 15px;
    }

    .compare-table tr:last-child td {
      border-bottom: 0;
    }

    .compare-table td {
      color: #53645d;
      background: rgba(255,255,255,.86);
    }

    .compare-table td:first-child {
      color: var(--text);
      font-weight: 900;
    }

    .highlight-cell {
      background: rgba(217, 255, 91, .22) !important;
      color: #244232 !important;
      font-weight: 800;
    }

    .plan-strip {
      display: grid;
      grid-template-columns: 1fr 1.18fr 1fr;
      gap: 18px;
      align-items: stretch;
    }

    .plan-card {
      padding: 24px;
      border-radius: 28px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-soft);
      transition: var(--ease);
      position: relative;
      overflow: hidden;
    }

    .plan-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow);
    }

    .plan-card.recommend {
      background: linear-gradient(160deg, #173a2b, #245842);
      color: #fff;
      border-color: transparent;
      transform: translateY(-10px);
    }

    .plan-card.recommend::after {
      content: "";
      position: absolute;
      width: 160px;
      height: 160px;
      right: -58px;
      bottom: -62px;
      border-radius: 999px;
      background: rgba(217, 255, 91, .24);
    }

    .plan-card h3 {
      margin: 0 0 10px;
      font-size: 25px;
      letter-spacing: -.04em;
      position: relative;
      z-index: 1;
    }

    .plan-card p {
      margin: 0 0 18px;
      color: var(--muted);
      position: relative;
      z-index: 1;
    }

    .plan-card.recommend p,
    .plan-card.recommend li {
      color: rgba(255,255,255,.78);
    }

    .plan-list {
      display: grid;
      gap: 9px;
      padding: 0;
      margin: 0 0 20px;
      list-style: none;
      position: relative;
      z-index: 1;
    }

    .plan-list li {
      display: flex;
      gap: 8px;
      color: #52645c;
      font-size: 14px;
    }

    .plan-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.5fr) minmax(280px, .85fr);
      gap: 22px;
    }

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

    .news-item {
      display: grid;
      grid-template-columns: 88px 1fr;
      gap: 14px;
      padding: 14px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--border);
      transition: var(--ease);
    }

    .news-item:hover {
      transform: translateX(4px);
      box-shadow: var(--shadow-soft);
      border-color: rgba(33,185,120,.28);
    }

    .news-date {
      min-height: 78px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      text-align: center;
      background: linear-gradient(135deg, var(--accent-soft), rgba(217,255,91,.2));
      color: #9f4323;
      font-weight: 900;
      line-height: 1.2;
    }

    .news-item h3 {
      margin: 0 0 6px;
      font-size: 18px;
      letter-spacing: -.02em;
    }

    .news-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .recommend-panel {
      padding: 22px;
      border-radius: 28px;
      color: #fff;
      background:
        linear-gradient(180deg, rgba(23,58,43,.18), rgba(23,58,43,.92)),
        linear-gradient(135deg, #2dd88e, #ff8a4c);
      min-height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      box-shadow: var(--shadow-soft);
    }

    .recommend-panel h3 {
      margin: 0 0 10px;
      font-size: 28px;
      line-height: 1.1;
      letter-spacing: -.04em;
    }

    .recommend-panel p {
      color: rgba(255,255,255,.82);
      margin: 0 0 18px;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
      counter-reset: step;
    }

    .step-card {
      padding: 20px;
      border-radius: 24px;
      background: #fff;
      border: 1px solid var(--border);
      min-height: 210px;
      position: relative;
      transition: var(--ease);
    }

    .step-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-soft);
    }

    .step-card::before {
      counter-increment: step;
      content: "0" counter(step);
      display: inline-flex;
      width: 46px;
      height: 46px;
      align-items: center;
      justify-content: center;
      border-radius: 16px;
      color: #123a2a;
      font-weight: 900;
      background: linear-gradient(135deg, var(--lime), var(--cyan));
      margin-bottom: 22px;
    }

    .step-card h3 {
      margin: 0 0 8px;
      font-size: 19px;
    }

    .step-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .vertical-flow {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
      align-items: stretch;
    }

    .vertical-card {
      min-height: 360px;
      border-radius: 30px;
      overflow: hidden;
      position: relative;
      padding: 18px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      color: #fff;
      background: #173a2b;
      box-shadow: var(--shadow-soft);
      transition: var(--ease);
    }

    .vertical-card:hover {
      transform: translateY(-7px) rotate(-1deg);
      box-shadow: var(--shadow);
    }

    .vertical-card:nth-child(2) {
      transform: translateY(18px);
      background: linear-gradient(160deg, #ff7a42, #233d33);
    }

    .vertical-card:nth-child(3) {
      background: linear-gradient(160deg, #20c27f, #162d24);
    }

    .vertical-card:nth-child(4) {
      transform: translateY(28px);
      background: linear-gradient(160deg, #6be5d2, #193227);
    }

    .cover-shape {
      position: absolute;
      inset: 0;
      opacity: .42;
      background:
        radial-gradient(circle at 50% 18%, rgba(217,255,91,.8), transparent 20%),
        radial-gradient(circle at 20% 78%, rgba(255,255,255,.45), transparent 18%),
        linear-gradient(135deg, transparent, rgba(0,0,0,.38));
    }

    .vertical-card > * {
      position: relative;
      z-index: 1;
    }

    .vertical-card h3 {
      margin: 0 0 8px;
      font-size: 24px;
      line-height: 1.12;
      letter-spacing: -.04em;
    }

    .vertical-card p {
      margin: 0;
      color: rgba(255,255,255,.78);
      font-size: 14px;
    }

    .metric-band {
      display: grid;
      grid-template-columns: 1.15fr repeat(3, 1fr);
      gap: 16px;
      align-items: stretch;
    }

    .metric-lead {
      padding: 26px;
      border-radius: 28px;
      background: #173a2b;
      color: #fff;
    }

    .metric-lead h2 {
      margin: 0 0 12px;
      line-height: 1.1;
      letter-spacing: -.04em;
      font-size: clamp(25px, 3vw, 38px);
    }

    .metric-lead p {
      margin: 0;
      color: rgba(255,255,255,.74);
    }

    .metric-card {
      padding: 24px;
      border-radius: 28px;
      background: #fff;
      border: 1px solid var(--border);
      transition: var(--ease);
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-soft);
    }

    .metric-card strong {
      display: block;
      font-size: 42px;
      line-height: 1;
      letter-spacing: -.06em;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

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

    .cta-section {
      position: relative;
      overflow: hidden;
      border-radius: 34px;
      padding: clamp(34px, 5vw, 64px);
      background:
        radial-gradient(circle at 85% 22%, rgba(217,255,91,.44), transparent 23%),
        linear-gradient(135deg, #173a2b, #265d45);
      color: #fff;
      box-shadow: var(--shadow);
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: auto -80px -120px auto;
      width: 360px;
      height: 360px;
      border-radius: 999px;
      background: rgba(115,229,214,.18);
    }

    .cta-grid {
      align-items: center;
      position: relative;
      z-index: 1;
    }

    .cta-section h2 {
      margin: 0 0 14px;
      font-size: clamp(30px, 4vw, 52px);
      line-height: 1.08;
      letter-spacing: -.05em;
    }

    .cta-section p {
      color: rgba(255,255,255,.78);
      margin: 0 0 22px;
      max-width: 660px;
    }

    .contact-box {
      padding: 22px;
      border-radius: 26px;
      background: rgba(255,255,255,.1);
      border: 1px solid rgba(255,255,255,.16);
      backdrop-filter: blur(14px);
    }

    .form-field {
      margin-bottom: 12px;
    }

    .form-field label {
      display: block;
      color: rgba(255,255,255,.76);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .form-field input,
    .form-field textarea {
      width: 100%;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 16px;
      background: rgba(255,255,255,.92);
      color: var(--text);
      padding: 12px 14px;
      box-shadow: none;
      margin: 0;
    }

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

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

    .faq-item {
      border: 1px solid var(--border);
      border-radius: 22px;
      background: #fff;
      overflow: hidden;
      transition: var(--ease);
    }

    .faq-item:hover {
      box-shadow: var(--shadow-soft);
    }

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      padding: 18px 20px;
      border: 0;
      background: transparent;
      color: var(--text);
      font-weight: 900;
      text-align: left;
    }

    .faq-question::after {
      content: "+";
      width: 28px;
      height: 28px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: rgba(33,185,120,.1);
      color: var(--primary-dark);
      flex: 0 0 auto;
      transition: var(--ease);
    }

    .faq-item.is-active .faq-question::after {
      content: "−";
      background: var(--primary);
      color: #fff;
    }

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

    .faq-item.is-active .faq-answer {
      display: block;
    }

    .faq-answer p {
      margin: 0;
    }

    .site-footer {
      margin-left: var(--sidebar);
      padding: 0 28px 28px;
    }

    .footer-inner {
      width: min(1180px, 100%);
      margin: 0 auto;
      padding: 28px;
      border-radius: 30px;
      background: rgba(255,255,255,.78);
      border: 1px solid var(--border);
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 24px;
      color: var(--muted);
    }

    .footer-inner strong {
      color: var(--text);
      font-size: 18px;
    }

    .footer-links {
      display: grid;
      gap: 8px;
    }

    .footer-links a:hover {
      color: var(--primary-dark);
      transform: translateX(3px);
    }

    .copyright {
      font-size: 13px;
      color: #7c8a84;
    }

    @media (max-width: 1180px) {
      :root {
        --sidebar: 238px;
      }

      .hero {
        background:
          linear-gradient(180deg, rgba(23,58,43,.96) 0%, rgba(23,58,43,.93) 52%, transparent 52.3%),
          linear-gradient(135deg, #fff8e8 0%, #ebfff2 100%);
      }

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

      .hero-stage {
        padding-top: 8px;
      }

      .plan-strip,
      .metric-band {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .vertical-flow,
      .steps-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .vertical-card:nth-child(2),
      .vertical-card:nth-child(4),
      .plan-card.recommend {
        transform: none;
      }
    }

    @media (max-width: 900px) {
      .side-nav {
        display: none;
      }

      .mobile-header {
        display: block;
      }

      .page-main,
      .site-footer {
        margin-left: 0;
        padding: 18px;
      }

      .section-head {
        display: block;
      }

      .section-head p {
        margin-top: 10px;
      }

      .hero {
        border-radius: 28px;
        min-height: auto;
      }

      .hero-copy {
        padding: 34px 24px;
      }

      .hero-points {
        grid-template-columns: 1fr;
      }

      .news-layout,
      .footer-inner {
        grid-template-columns: 1fr;
      }

      .cta-grid {
        gap: 22px;
      }
    }

    @media (max-width: 620px) {
      .page-main,
      .site-footer {
        padding: 12px;
      }

      .section {
        margin: 18px 0;
      }

      .section-pad,
      .cta-section {
        border-radius: 24px;
        padding: 22px;
      }

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

      .hero h1 {
        font-size: 34px;
      }

      .hero-copy {
        padding: 28px 20px;
      }

      .choice-card.featured {
        transform: none;
      }

      .plan-strip,
      .metric-band,
      .vertical-flow,
      .steps-grid {
        grid-template-columns: 1fr;
      }

      .vertical-card {
        min-height: 280px;
      }

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

      .news-date {
        min-height: 54px;
        justify-content: start;
        padding: 12px 14px;
        text-align: left;
      }

      .btn {
        width: 100%;
      }

      .btn-row {
        width: 100%;
      }

      .footer-inner {
        padding: 22px;
        border-radius: 24px;
      }
    }

/* roulang page: category1 */
:root {
      --bg: #f7f4ec;
      --surface: #ffffff;
      --surface-soft: #eef7ef;
      --surface-warm: #fff8e8;
      --ink: #1f2623;
      --muted: #64706a;
      --line: #dfe8df;
      --primary: #1f7a5b;
      --primary-dark: #155941;
      --accent: #ff7a45;
      --accent-2: #9cc84a;
      --mint: #d9f2e2;
      --radius-lg: 28px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --shadow: 0 22px 55px rgba(31, 38, 35, 0.10);
      --shadow-soft: 0 14px 34px rgba(31, 122, 91, 0.12);
      --nav-width: 276px;
      --ease: 180ms ease;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 88% 8%, rgba(255, 122, 69, 0.14), transparent 28%),
        linear-gradient(135deg, #f9f6ee 0%, #edf6ef 48%, #f7f4ec 100%);
      line-height: 1.72;
      letter-spacing: 0;
    }
    a { color: inherit; text-decoration: none; transition: color var(--ease), background var(--ease), box-shadow var(--ease), transform var(--ease), border-color var(--ease); }
    img { max-width: 100%; display: block; }
    button, input, textarea { font: inherit; }
    button { cursor: pointer; }
    :focus-visible { outline: 3px solid rgba(255, 122, 69, 0.35); outline-offset: 3px; }

    .mobile-header { display: contents; }
    .brand { display: none; }
    .side-nav {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--nav-width);
      padding: 28px 22px;
      background: rgba(255, 255, 255, 0.88);
      border-right: 1px solid rgba(223, 232, 223, 0.9);
      backdrop-filter: blur(18px);
      z-index: 20;
      display: flex;
      flex-direction: column;
      gap: 28px;
      box-shadow: 18px 0 50px rgba(31, 38, 35, 0.06);
    }
    .side-nav-logo {
      display: grid;
      gap: 6px;
      padding: 18px;
      border-radius: 22px;
      background: linear-gradient(135deg, var(--primary), #2a9d71);
      color: #fff;
      box-shadow: var(--shadow-soft);
    }
    .logo-main { font-size: 21px; font-weight: 850; line-height: 1.2; }
    .logo-sub { font-size: 12px; color: rgba(255,255,255,0.78); }
    .side-nav-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
    .side-nav-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 13px 14px;
      border-radius: 16px;
      color: var(--muted);
      font-weight: 750;
      border: 1px solid transparent;
    }
    .side-nav-link:hover,
    .side-nav-link.active {
      color: var(--primary-dark);
      background: var(--mint);
      border-color: rgba(31,122,91,0.14);
      transform: translateX(2px);
    }
    .nav-icon { color: var(--accent); font-size: 22px; line-height: 1; }
    .side-nav-footer { margin-top: auto; color: #8a938e; font-size: 13px; padding: 14px; border-top: 1px solid var(--line); }
    .mobile-nav { display: none; }

    .page-shell { margin-left: var(--nav-width); min-height: 100vh; }
    .content-wrap { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
    .section { padding: 74px 0; }
    .section-tight { padding: 52px 0; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(217,242,226,0.78);
      border: 1px solid rgba(31,122,91,0.12);
      font-size: 13px;
      font-weight: 800;
    }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
    .section-head h2, .guide-hero h1 { margin: 0; line-height: 1.12; letter-spacing: 0; }
    .section-head h2 { font-size: clamp(28px, 4vw, 44px); max-width: 680px; }
    .section-head p { margin: 0; max-width: 460px; color: var(--muted); }

    .guide-hero {
      padding: 58px 0 34px;
      background: linear-gradient(180deg, rgba(255,255,255,0.62), rgba(255,255,255,0));
    }
    .hero-panel {
      border: 1px solid rgba(223,232,223,0.88);
      border-radius: 34px;
      background: rgba(255,255,255,0.84);
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .hero-copy { padding: clamp(28px, 5vw, 56px); }
    .guide-hero h1 { font-size: clamp(34px, 6vw, 68px); max-width: 780px; }
    .hero-summary { margin: 20px 0 26px; max-width: 740px; color: var(--muted); font-size: 18px; }
    .search-zone {
      display: flex;
      gap: 10px;
      padding: 10px;
      border: 1px solid var(--line);
      border-radius: 20px;
      background: #fff;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.72);
      max-width: 760px;
    }
    .search-zone input {
      flex: 1;
      min-width: 0;
      border: 0;
      box-shadow: none;
      margin: 0;
      padding: 12px 14px;
      background: transparent;
      color: var(--ink);
    }
    .button-primary, .button-secondary, .button-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 850;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .button-primary { background: var(--primary); color: #fff; box-shadow: 0 12px 26px rgba(31,122,91,0.24); }
    .button-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 18px 34px rgba(31,122,91,0.28); }
    .button-secondary { background: #fff; color: var(--primary-dark); border-color: rgba(31,122,91,0.2); }
    .button-secondary:hover { background: var(--mint); color: var(--primary-dark); transform: translateY(-2px); }
    .button-ghost { color: var(--primary-dark); background: rgba(255,255,255,0.62); border-color: var(--line); }
    .button-ghost:hover { background: #fff; transform: translateY(-2px); box-shadow: var(--shadow-soft); }
    .quick-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
    .tag, .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 11px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
      color: var(--primary-dark);
      background: var(--surface-soft);
      border: 1px solid rgba(31,122,91,0.1);
    }
    .tag.hot { color: #7a3418; background: #ffe5d7; border-color: rgba(255,122,69,0.22); }
    .hero-matrix {
      min-height: 100%;
      padding: 28px;
      background: linear-gradient(160deg, #153f34 0%, #1f7a5b 62%, #ff7a45 160%);
      display: grid;
      align-content: center;
      gap: 14px;
    }
    .matrix-card {
      border-radius: 24px;
      background: rgba(255,255,255,0.14);
      border: 1px solid rgba(255,255,255,0.22);
      color: #fff;
      padding: 20px;
      backdrop-filter: blur(8px);
      transform: rotate(-1deg);
    }
    .matrix-card:nth-child(2) { transform: rotate(1.2deg); margin-left: 28px; background: rgba(255,255,255,0.19); }
    .matrix-card:nth-child(3) { transform: rotate(-0.4deg); margin-right: 18px; }
    .matrix-card strong { display: block; font-size: 22px; margin-bottom: 8px; }
    .matrix-card p { margin: 0; color: rgba(255,255,255,0.82); }

    .filter-strip {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      padding: 18px;
      background: rgba(255,255,255,0.72);
      border: 1px solid var(--line);
      border-radius: 24px;
      box-shadow: var(--shadow-soft);
    }
    .filter-label { font-weight: 850; color: var(--primary-dark); margin-right: 4px; }
    .filter-chip {
      border: 1px solid rgba(31,122,91,0.16);
      background: #fff;
      color: var(--muted);
      border-radius: 999px;
      padding: 9px 14px;
      font-weight: 800;
    }
    .filter-chip.active, .filter-chip:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-1px); }

    .vertical-flow { display: grid; gap: 22px; }
    .flow-card {
      display: grid;
      grid-template-columns: 210px 1fr auto;
      gap: 24px;
      align-items: center;
      padding: 22px;
      border-radius: 28px;
      background: rgba(255,255,255,0.84);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
    }
    .flow-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
    .visual-block {
      min-height: 154px;
      border-radius: 22px;
      padding: 18px;
      display: grid;
      align-content: end;
      color: #fff;
      overflow: hidden;
      position: relative;
      background: linear-gradient(135deg, var(--primary), #78bb64);
    }
    .visual-block.orange { background: linear-gradient(135deg, #ff7a45, #f3b34f); }
    .visual-block.dark { background: linear-gradient(135deg, #1f2623, #3b7861); }
    .visual-block::before {
      content: "";
      position: absolute;
      inset: 16px 16px auto auto;
      width: 58px;
      height: 58px;
      border-radius: 18px;
      background: rgba(255,255,255,0.2);
      transform: rotate(12deg);
    }
    .visual-block span { position: relative; font-size: 13px; opacity: 0.84; }
    .visual-block strong { position: relative; font-size: 28px; line-height: 1.1; }
    .flow-body h3 { margin: 0 0 9px; font-size: 25px; line-height: 1.22; }
    .flow-body p { margin: 0 0 14px; color: var(--muted); }
    .flow-points { display: flex; flex-wrap: wrap; gap: 8px; }
    .flow-action { display: grid; gap: 10px; min-width: 142px; justify-items: end; }
    .mini-stat { color: var(--primary-dark); font-weight: 900; font-size: 26px; line-height: 1; }
    .mini-stat small { display: block; color: var(--muted); font-size: 12px; font-weight: 750; margin-top: 5px; }

    .recommend {
      border-radius: 34px;
      padding: clamp(26px, 5vw, 50px);
      background: #1f2623;
      color: #fff;
      overflow: hidden;
      position: relative;
    }
    .recommend::after {
      content: "";
      position: absolute;
      right: -80px;
      top: -80px;
      width: 260px;
      height: 260px;
      border-radius: 52px;
      background: rgba(255,122,69,0.34);
      transform: rotate(18deg);
    }
    .recommend-content { position: relative; z-index: 1; }
    .recommend h2 { margin: 10px 0 14px; font-size: clamp(30px, 5vw, 50px); line-height: 1.12; max-width: 720px; }
    .recommend p { color: rgba(255,255,255,0.76); max-width: 690px; margin-bottom: 24px; }
    .step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 24px; }
    .step-card {
      padding: 20px;
      border-radius: 22px;
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.16);
    }
    .step-card b { display: inline-flex; width: 36px; height: 36px; border-radius: 12px; align-items: center; justify-content: center; background: var(--accent); margin-bottom: 16px; }
    .step-card strong { display: block; font-size: 20px; margin-bottom: 8px; }
    .step-card span { color: rgba(255,255,255,0.72); }

    .faq-list { display: grid; gap: 12px; }
    .faq-item {
      border-radius: 20px;
      overflow: hidden;
      background: rgba(255,255,255,0.82);
      border: 1px solid var(--line);
      box-shadow: 0 10px 24px rgba(31,38,35,0.06);
    }
    .faq-item summary {
      cursor: pointer;
      padding: 20px 22px;
      font-weight: 850;
      color: var(--primary-dark);
      list-style: none;
      display: flex;
      justify-content: space-between;
      gap: 18px;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
    .faq-item[open] summary::after { content: "-"; }
    .faq-item p { margin: 0; padding: 0 22px 22px; color: var(--muted); }

    .contact-cta {
      display: grid;
      grid-template-columns: 1fr 380px;
      gap: 26px;
      align-items: stretch;
      padding: clamp(26px, 5vw, 46px);
      border-radius: 34px;
      background: linear-gradient(135deg, #ffffff, #eff8ef);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }
    .contact-cta h2 { margin: 8px 0 12px; font-size: clamp(30px, 5vw, 48px); line-height: 1.12; }
    .contact-cta p { color: var(--muted); max-width: 650px; }
    .request-form {
      display: grid;
      gap: 12px;
      padding: 18px;
      border-radius: 24px;
      background: #fff;
      border: 1px solid var(--line);
    }
    .request-form label { font-size: 13px; color: var(--muted); font-weight: 800; }
    .request-form input, .request-form textarea {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 12px 13px;
      margin: 6px 0 0;
      background: #fbfdfb;
      box-shadow: none;
    }
    .request-form textarea { min-height: 96px; resize: vertical; }

    .site-footer {
      margin-left: var(--nav-width);
      padding: 38px 0;
      background: #16211d;
      color: rgba(255,255,255,0.78);
    }
    .footer-inner {
      width: min(1180px, calc(100% - 48px));
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.35fr 0.7fr 1fr;
      gap: 30px;
    }
    .site-footer strong { display: block; color: #fff; margin-bottom: 10px; font-size: 18px; }
    .site-footer p { margin: 0 0 10px; max-width: 460px; }
    .copyright { color: rgba(255,255,255,0.55); font-size: 13px; }
    .footer-links { display: grid; align-content: start; gap: 8px; }
    .footer-links a:hover { color: #fff; }

    @media screen and (max-width: 1024px) {
      :root { --nav-width: 238px; }
      .content-wrap, .footer-inner { width: min(100% - 36px, 960px); }
      .flow-card { grid-template-columns: 180px 1fr; }
      .flow-action { grid-column: 1 / -1; display: flex; justify-content: space-between; justify-items: start; align-items: center; }
      .contact-cta { grid-template-columns: 1fr; }
      .step-grid { grid-template-columns: 1fr; }
    }

    @media screen and (max-width: 768px) {
      body { background: linear-gradient(180deg, #f9f6ee, #edf6ef); }
      .mobile-header {
        display: block;
        position: sticky;
        top: 0;
        z-index: 30;
        padding: 12px 14px 10px;
        background: rgba(255,255,255,0.94);
        border-bottom: 1px solid var(--line);
        backdrop-filter: blur(16px);
      }
      .brand {
        display: flex;
        align-items: center;
        gap: 11px;
        margin-bottom: 10px;
      }
      .brand-mark {
        width: 42px;
        height: 42px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 14px;
        color: #fff;
        background: var(--primary);
        font-weight: 900;
      }
      .brand strong { display: block; line-height: 1.15; }
      .brand span span { display: block; color: var(--muted); font-size: 12px; }
      .side-nav { display: none; }
      .mobile-nav {
        display: flex;
        gap: 8px;
        overflow-x: auto;
        padding-bottom: 2px;
      }
      .mobile-nav .nav-link {
        flex: 0 0 auto;
        padding: 9px 13px;
        border-radius: 999px;
        border: 1px solid var(--line);
        color: var(--muted);
        font-weight: 800;
        background: #fff;
      }
      .mobile-nav .nav-link.active { background: var(--primary); color: #fff; border-color: var(--primary); }
      .page-shell, .site-footer { margin-left: 0; }
      .guide-hero { padding-top: 28px; }
      .hero-copy { padding: 26px; }
      .hero-matrix { padding: 20px; }
      .matrix-card:nth-child(2) { margin-left: 0; }
      .flow-card { grid-template-columns: 1fr; }
      .visual-block { min-height: 132px; }
      .section, .section-tight { padding: 48px 0; }
      .section-head { display: grid; gap: 10px; }
      .footer-inner { grid-template-columns: 1fr; }
    }

    @media screen and (max-width: 520px) {
      .content-wrap, .footer-inner { width: min(100% - 28px, 480px); }
      .guide-hero h1 { font-size: 34px; }
      .hero-summary { font-size: 16px; }
      .search-zone { display: grid; border-radius: 18px; }
      .search-zone .button-primary { width: 100%; }
      .button-primary, .button-secondary, .button-ghost { width: 100%; min-height: 48px; }
      .quick-tags, .filter-strip, .flow-points { gap: 8px; }
      .filter-chip, .tag, .badge { font-size: 12px; padding: 7px 10px; }
      .flow-action { display: grid; justify-content: stretch; }
      .contact-cta, .recommend, .hero-panel { border-radius: 24px; }
      .matrix-card, .flow-card, .request-form { border-radius: 20px; }
    }