/* roulang page: index */
:root {
      --ink: #10201F;
      --ink-soft: #1A312F;
      --jade: #2E8C7A;
      --jade-dark: #226E61;
      --jade-light: #EAF2EE;
      --amber: #D8A24A;
      --amber-dark: #B9832F;
      --paper: #F6F3EC;
      --paper-2: #FFFCF5;
      --white: #FFFFFF;
      --text: #24312F;
      --muted: #6E7A76;
      --line: rgba(16, 32, 31, 0.12);
      --line-strong: rgba(16, 32, 31, 0.22);
      --shadow: 0 18px 46px rgba(16, 32, 31, 0.09);
      --shadow-soft: 0 10px 28px rgba(16, 32, 31, 0.06);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1200px;
      --transition: 180ms ease;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background: var(--paper);
      line-height: 1.75;
      font-size: 16px;
      overflow-x: hidden;
    }

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

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

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

    button {
      border: 0;
      cursor: pointer;
      background: transparent;
    }

    :focus-visible {
      outline: 3px solid rgba(46, 140, 122, 0.28);
      outline-offset: 3px;
    }

    .container {
      width: min(var(--container), calc(100% - 64px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(246, 243, 236, 0.96);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 8px 24px rgba(16, 32, 31, 0.04);
      backdrop-filter: blur(10px);
    }

    .nav-wrap {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 238px;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: var(--white);
      font-weight: 800;
      letter-spacing: -0.02em;
      background: linear-gradient(145deg, var(--ink), var(--jade));
      box-shadow: 0 12px 24px rgba(46, 140, 122, 0.22);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      gap: 1px;
    }

    .brand-name {
      font-size: 17px;
      font-weight: 800;
      color: var(--ink);
      line-height: 1.25;
      white-space: nowrap;
    }

    .brand-sub {
      font-size: 12px;
      color: var(--muted);
      line-height: 1.2;
      white-space: nowrap;
    }

    .main-nav {
      flex: 1;
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 8px;
    }

    .main-nav a {
      position: relative;
      padding: 9px 15px;
      border-radius: 999px;
      color: var(--ink-soft);
      font-size: 15px;
      font-weight: 650;
    }

    .main-nav a::after {
      content: "";
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 6px;
      height: 2px;
      border-radius: 2px;
      background: var(--jade);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform var(--transition);
    }

    .main-nav a:hover {
      background: var(--jade-light);
      color: var(--jade-dark);
    }

    .main-nav a:hover::after,
    .main-nav a.active::after {
      transform: scaleX(1);
    }

    .main-nav a.active {
      color: var(--jade-dark);
      background: rgba(46, 140, 122, 0.12);
    }

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

    .text-link {
      color: var(--muted);
      font-size: 14px;
      font-weight: 650;
    }

    .text-link:hover {
      color: var(--jade-dark);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: var(--white);
      color: var(--ink);
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 2px;
      background: currentColor;
      position: relative;
      transition: transform var(--transition), opacity var(--transition);
    }

    .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;
    }

    .mobile-menu {
      display: none;
      border-top: 1px solid var(--line);
      background: var(--paper-2);
    }

    .mobile-menu-inner {
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
      padding: 12px 0 18px;
      display: grid;
      gap: 8px;
    }

    .mobile-menu a {
      min-height: 44px;
      display: flex;
      align-items: center;
      border-radius: 14px;
      padding: 10px 14px;
      color: var(--ink);
      font-weight: 650;
    }

    .mobile-menu a.active,
    .mobile-menu a:hover {
      background: var(--jade-light);
      color: var(--jade-dark);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 22px;
      border-radius: 14px;
      font-weight: 760;
      line-height: 1.2;
      border: 1px solid transparent;
      white-space: nowrap;
      transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
    }

    .btn-primary {
      background: var(--jade);
      color: var(--white);
      box-shadow: 0 14px 28px rgba(46, 140, 122, 0.22);
    }

    .btn-primary:hover {
      background: var(--jade-dark);
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(46, 140, 122, 0.28);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.78);
      color: var(--ink);
      border-color: var(--line-strong);
    }

    .btn-secondary:hover {
      background: var(--white);
      border-color: rgba(46, 140, 122, 0.42);
      color: var(--jade-dark);
      transform: translateY(-2px);
    }

    .btn-amber {
      background: var(--amber);
      color: var(--ink);
      box-shadow: 0 14px 26px rgba(216, 162, 74, 0.2);
    }

    .btn-amber:hover {
      background: var(--amber-dark);
      color: var(--white);
      transform: translateY(-2px);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(46, 140, 122, 0.1);
      color: var(--jade-dark);
      border: 1px solid rgba(46, 140, 122, 0.18);
      font-size: 13px;
      font-weight: 760;
      line-height: 1.2;
    }

    .badge::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--amber);
      box-shadow: 0 0 0 4px rgba(216, 162, 74, 0.16);
    }

    .section {
      padding: 88px 0;
      position: relative;
    }

    .section-alt {
      background: var(--paper-2);
      border-top: 1px solid rgba(16, 32, 31, 0.06);
      border-bottom: 1px solid rgba(16, 32, 31, 0.06);
    }

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

    .section-kicker {
      color: var(--jade-dark);
      font-size: 14px;
      font-weight: 800;
      letter-spacing: 0.04em;
      margin-bottom: 8px;
    }

    .section-title {
      color: var(--ink);
      font-size: clamp(26px, 3vw, 36px);
      line-height: 1.25;
      letter-spacing: -0.02em;
      font-weight: 820;
    }

    .section-desc {
      max-width: 520px;
      color: var(--muted);
      font-size: 16px;
    }

    .hero {
      position: relative;
      min-height: 720px;
      display: flex;
      align-items: stretch;
      overflow: hidden;
      background:
        linear-gradient(115deg, rgba(246, 243, 236, 0.94) 0%, rgba(246, 243, 236, 0.84) 42%, rgba(234, 242, 238, 0.76) 100%),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 20% 22%, rgba(216, 162, 74, 0.18), transparent 30%),
        radial-gradient(circle at 82% 18%, rgba(46, 140, 122, 0.16), transparent 28%),
        linear-gradient(90deg, rgba(16, 32, 31, 0.06) 1px, transparent 1px),
        linear-gradient(180deg, rgba(16, 32, 31, 0.05) 1px, transparent 1px);
      background-size: auto, auto, 36px 36px, 36px 36px;
      pointer-events: none;
    }

    .hero .container {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.9fr);
      gap: 46px;
      align-items: center;
      padding: 70px 0 54px;
    }

    .hero-copy {
      max-width: 680px;
    }

    .hero h1 {
      margin-top: 18px;
      color: var(--ink);
      font-size: clamp(32px, 4.6vw, 52px);
      line-height: 1.18;
      letter-spacing: -0.045em;
      font-weight: 860;
    }

    .hero-lead {
      margin-top: 22px;
      max-width: 620px;
      color: #3A4946;
      font-size: clamp(17px, 1.6vw, 20px);
      line-height: 1.8;
    }

    .hero-actions {
      margin-top: 32px;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .hero-note {
      margin-top: 24px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .note-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 11px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.56);
    }

    .note-pill i {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--jade);
    }

    .hero-panel {
      position: relative;
      background: rgba(255, 252, 245, 0.92);
      border: 1px solid rgba(16, 32, 31, 0.14);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow);
      padding: 22px;
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0 0 auto 0;
      height: 5px;
      background: linear-gradient(90deg, var(--jade), var(--amber));
    }

    .panel-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 10px 6px 20px;
      border-bottom: 1px solid var(--line);
    }

    .panel-title {
      color: var(--ink);
      font-size: 20px;
      font-weight: 820;
      line-height: 1.35;
    }

    .panel-status {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 10px;
      border-radius: 999px;
      background: var(--jade-light);
      color: var(--jade-dark);
      font-size: 13px;
      font-weight: 760;
      white-space: nowrap;
    }

    .panel-status::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--jade);
    }

    .panel-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      padding-top: 18px;
    }

    .panel-card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 18px;
      min-height: 134px;
      transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }

    .panel-card:hover {
      transform: translateY(-3px);
      border-color: rgba(46, 140, 122, 0.36);
      box-shadow: var(--shadow-soft);
    }

    .panel-icon {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: rgba(46, 140, 122, 0.1);
      color: var(--jade-dark);
      margin-bottom: 12px;
    }

    .panel-card strong {
      display: block;
      color: var(--ink);
      font-size: 16px;
      line-height: 1.35;
      margin-bottom: 6px;
    }

    .panel-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .status-bar {
      grid-column: 1 / -1;
      margin-top: -10px;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 1px;
      background: rgba(16, 32, 31, 0.12);
      border: 1px solid rgba(16, 32, 31, 0.12);
      border-radius: 22px;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    .status-item {
      background: rgba(255, 252, 245, 0.94);
      padding: 16px 18px;
      min-height: 82px;
    }

    .status-item span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      margin-bottom: 5px;
    }

    .status-item strong {
      color: var(--ink);
      font-size: 16px;
      font-weight: 800;
    }

    .quick-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .quick-card {
      position: relative;
      display: grid;
      grid-template-columns: 58px 1fr auto;
      align-items: center;
      gap: 18px;
      min-height: 126px;
      padding: 22px 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: linear-gradient(135deg, var(--paper-2), #F7F1E6);
      box-shadow: 0 10px 24px rgba(16, 32, 31, 0.04);
      overflow: hidden;
    }

    .quick-card::before {
      content: "";
      position: absolute;
      left: 0;
      top: 22px;
      bottom: 22px;
      width: 4px;
      border-radius: 999px;
      background: var(--jade);
      opacity: 0.75;
    }

    .quick-card:hover {
      border-color: rgba(46, 140, 122, 0.34);
      box-shadow: var(--shadow-soft);
      transform: translateY(-3px);
    }

    .quick-num {
      width: 52px;
      height: 52px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      color: var(--jade-dark);
      background: rgba(46, 140, 122, 0.11);
      font-size: 18px;
      font-weight: 860;
    }

    .quick-card h3 {
      color: var(--ink);
      font-size: 19px;
      line-height: 1.35;
      font-weight: 820;
      margin-bottom: 4px;
    }

    .quick-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.62;
    }

    .quick-arrow {
      color: var(--jade-dark);
      font-size: 24px;
      transition: transform var(--transition), color var(--transition);
    }

    .quick-card:hover .quick-arrow {
      transform: translateX(4px);
      color: var(--amber-dark);
    }

    .overview-layout {
      display: grid;
      grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1fr);
      gap: 36px;
      align-items: center;
    }

    .overview-media {
      position: relative;
      border-radius: var(--radius-xl);
      overflow: hidden;
      min-height: 420px;
      background: var(--ink);
      box-shadow: var(--shadow);
    }

    .overview-media img {
      width: 100%;
      height: 100%;
      min-height: 420px;
      object-fit: cover;
      opacity: 0.84;
    }

    .overview-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(16, 32, 31, 0.06), rgba(16, 32, 31, 0.68));
    }

    .media-caption {
      position: absolute;
      left: 24px;
      right: 24px;
      bottom: 24px;
      z-index: 2;
      color: var(--white);
      padding: 20px;
      border-radius: 20px;
      background: rgba(16, 32, 31, 0.72);
      border: 1px solid rgba(255, 255, 255, 0.16);
    }

    .media-caption strong {
      display: block;
      font-size: 20px;
      line-height: 1.35;
      margin-bottom: 8px;
    }

    .media-caption p {
      color: rgba(255, 255, 255, 0.78);
      font-size: 14px;
      line-height: 1.7;
    }

    .check-matrix {
      display: grid;
      gap: 14px;
    }

    .check-item {
      display: grid;
      grid-template-columns: 38px 1fr;
      gap: 14px;
      padding: 18px;
      border-radius: 18px;
      border: 1px solid var(--line);
      background: var(--white);
      box-shadow: 0 8px 20px rgba(16, 32, 31, 0.04);
    }

    .check-mark {
      width: 38px;
      height: 38px;
      border-radius: 13px;
      display: grid;
      place-items: center;
      color: var(--white);
      background: var(--jade);
      font-weight: 900;
    }

    .check-item h3 {
      color: var(--ink);
      font-size: 17px;
      line-height: 1.35;
      margin-bottom: 4px;
    }

    .check-item p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .timeline {
      position: relative;
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 18px;
    }

    .timeline::before {
      content: "";
      position: absolute;
      left: 8%;
      right: 8%;
      top: 34px;
      height: 3px;
      background: linear-gradient(90deg, rgba(46, 140, 122, 0.18), var(--jade), rgba(216, 162, 74, 0.58));
      border-radius: 999px;
    }

    .step {
      position: relative;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 24px 20px 22px;
      box-shadow: 0 8px 18px rgba(16, 32, 31, 0.04);
      min-height: 228px;
      z-index: 1;
    }

    .step:hover {
      transform: translateY(-3px);
      border-color: rgba(46, 140, 122, 0.34);
      box-shadow: var(--shadow-soft);
    }

    .step-num {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 999px;
      background: var(--jade);
      color: var(--white);
      font-weight: 860;
      margin-bottom: 18px;
      box-shadow: 0 0 0 8px var(--paper-2);
    }

    .step:nth-child(3) .step-num {
      background: var(--amber);
      color: var(--ink);
    }

    .step h3 {
      color: var(--ink);
      font-size: 18px;
      line-height: 1.35;
      margin-bottom: 8px;
    }

    .step p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.72;
    }

    .security {
      background:
        linear-gradient(135deg, rgba(16, 32, 31, 0.96), rgba(26, 49, 47, 0.94)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      color: var(--white);
      overflow: hidden;
    }

    .security::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 15% 30%, rgba(216, 162, 74, 0.18), transparent 24%),
        radial-gradient(circle at 88% 72%, rgba(46, 140, 122, 0.22), transparent 28%);
      pointer-events: none;
    }

    .security .container {
      position: relative;
      z-index: 1;
    }

    .security .section-title,
    .security .section-kicker {
      color: var(--white);
    }

    .security .section-desc {
      color: rgba(255, 255, 255, 0.72);
    }

    .security-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .security-card {
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 16px;
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid rgba(255, 255, 255, 0.12);
    }

    .security-card:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(216, 162, 74, 0.38);
      transform: translateY(-3px);
    }

    .security-icon {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      background: rgba(216, 162, 74, 0.16);
      color: var(--amber);
      font-size: 21px;
    }

    .security-card h3 {
      font-size: 18px;
      line-height: 1.35;
      margin-bottom: 6px;
      color: var(--white);
    }

    .security-card p {
      color: rgba(255, 255, 255, 0.72);
      font-size: 14px;
      line-height: 1.7;
    }

    .category-preview {
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.75fr);
      gap: 24px;
      align-items: stretch;
    }

    .feature-article {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }

    .feature-article:hover {
      transform: translateY(-3px);
      border-color: rgba(46, 140, 122, 0.32);
      box-shadow: var(--shadow);
    }

    .feature-img {
      position: relative;
      height: 290px;
      overflow: hidden;
      background: var(--ink);
    }

    .feature-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 360ms ease;
    }

    .feature-article:hover .feature-img img {
      transform: scale(1.035);
    }

    .feature-img::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 45%, rgba(16, 32, 31, 0.64));
    }

    .article-body {
      padding: 26px;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
      color: var(--muted);
      font-size: 13px;
      margin-bottom: 12px;
    }

    .article-tag {
      display: inline-flex;
      align-items: center;
      padding: 5px 10px;
      border-radius: 999px;
      background: var(--jade-light);
      color: var(--jade-dark);
      font-weight: 760;
    }

    .feature-article h3 {
      color: var(--ink);
      font-size: 26px;
      line-height: 1.3;
      margin-bottom: 10px;
    }

    .feature-article p {
      color: var(--muted);
      line-height: 1.72;
    }

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

    .article-row {
      display: grid;
      grid-template-columns: 46px 1fr auto;
      gap: 15px;
      align-items: center;
      padding: 18px;
      border-radius: 20px;
      border: 1px solid var(--line);
      background: var(--white);
    }

    .article-row:hover {
      border-color: rgba(46, 140, 122, 0.34);
      box-shadow: var(--shadow-soft);
      transform: translateY(-2px);
    }

    .article-index {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: rgba(216, 162, 74, 0.16);
      color: var(--amber-dark);
      font-weight: 860;
    }

    .article-row h3 {
      color: var(--ink);
      font-size: 17px;
      line-height: 1.35;
      margin-bottom: 4px;
    }

    .article-row p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
    }

    .row-arrow {
      color: var(--jade-dark);
      font-size: 21px;
      transition: transform var(--transition);
    }

    .article-row:hover .row-arrow {
      transform: translateX(4px);
    }

    .proof-grid {
      display: grid;
      grid-template-columns: 0.86fr 1.14fr;
      gap: 28px;
      align-items: stretch;
    }

    .proof-card {
      border-radius: var(--radius-xl);
      border: 1px solid var(--line);
      background: var(--white);
      padding: 30px;
      box-shadow: var(--shadow-soft);
    }

    .proof-card.dark {
      background: var(--ink);
      color: var(--white);
      position: relative;
      overflow: hidden;
    }

    .proof-card.dark::after {
      content: "";
      position: absolute;
      width: 210px;
      height: 210px;
      right: -58px;
      bottom: -70px;
      border-radius: 50%;
      background: rgba(46, 140, 122, 0.28);
    }

    .proof-card h3 {
      position: relative;
      z-index: 1;
      color: inherit;
      font-size: 24px;
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .proof-card p {
      position: relative;
      z-index: 1;
      color: var(--muted);
      line-height: 1.75;
    }

    .proof-card.dark p {
      color: rgba(255, 255, 255, 0.72);
    }

    .proof-list {
      margin-top: 20px;
      display: grid;
      gap: 12px;
      position: relative;
      z-index: 1;
    }

    .proof-list li {
      list-style: none;
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: rgba(255, 255, 255, 0.84);
      font-size: 15px;
    }

    .proof-list li::before {
      content: "";
      flex: 0 0 8px;
      width: 8px;
      height: 8px;
      margin-top: 10px;
      border-radius: 50%;
      background: var(--amber);
    }

    .feedback-box {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
      margin-top: 22px;
    }

    .mini-input {
      min-height: 48px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: var(--paper-2);
      color: var(--muted);
      display: flex;
      align-items: center;
      padding: 0 15px;
      font-size: 14px;
    }

    .mini-input.wide {
      grid-column: 1 / -1;
      min-height: 84px;
      align-items: flex-start;
      padding-top: 14px;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 0.78fr 1.22fr;
      gap: 34px;
      align-items: start;
    }

    .faq-intro {
      position: sticky;
      top: 108px;
      border-radius: var(--radius-xl);
      background: linear-gradient(145deg, var(--jade-light), var(--paper-2));
      border: 1px solid var(--line);
      padding: 30px;
    }

    .faq-intro h2 {
      color: var(--ink);
      font-size: clamp(24px, 2.6vw, 34px);
      line-height: 1.28;
      margin: 12px 0 12px;
    }

    .faq-intro p {
      color: var(--muted);
    }

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

    .faq-item {
      border: 1px solid var(--line);
      border-radius: 18px;
      background: var(--white);
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(46, 140, 122, 0.34);
      box-shadow: var(--shadow-soft);
    }

    .faq-question {
      width: 100%;
      min-height: 64px;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: var(--ink);
      font-size: 17px;
      font-weight: 800;
      text-align: left;
    }

    .faq-icon {
      flex: 0 0 30px;
      width: 30px;
      height: 30px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: var(--jade-light);
      color: var(--jade-dark);
      font-weight: 900;
      transition: transform var(--transition), background-color var(--transition);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.76;
    }

    .faq-item.open {
      background: #F3FAF6;
      border-color: rgba(46, 140, 122, 0.34);
    }

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

    .faq-item.open .faq-icon {
      background: var(--jade);
      color: var(--white);
      transform: rotate(45deg);
    }

    .cta-band {
      padding: 74px 0;
      background:
        linear-gradient(135deg, rgba(234, 242, 238, 0.95), rgba(255, 252, 245, 0.95)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
    }

    .cta-card {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
      padding: 34px;
      border-radius: var(--radius-xl);
      background: rgba(255, 252, 245, 0.94);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .cta-card h2 {
      color: var(--ink);
      font-size: clamp(25px, 3vw, 36px);
      line-height: 1.28;
      margin-bottom: 10px;
    }

    .cta-card p {
      color: var(--muted);
      max-width: 680px;
    }

    .cta-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .site-footer {
      background: var(--ink);
      color: rgba(255, 255, 255, 0.74);
      padding: 62px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(260px, 1.15fr) repeat(2, minmax(150px, 0.5fr)) minmax(230px, 0.75fr);
      gap: 34px;
      padding-bottom: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .footer-brand .brand-mark {
      box-shadow: none;
      background: linear-gradient(145deg, var(--jade), var(--amber));
    }

    .footer-brand strong {
      color: var(--white);
      font-size: 18px;
      line-height: 1.35;
    }

    .footer-desc {
      max-width: 430px;
      color: rgba(255, 255, 255, 0.66);
      font-size: 14px;
      line-height: 1.76;
    }

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

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, 0.66);
      font-size: 14px;
    }

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

    .footer-note {
      padding: 16px;
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 14px;
      line-height: 1.74;
    }

    .footer-bottom {
      padding-top: 22px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 18px;
      color: rgba(255, 255, 255, 0.52);
      font-size: 13px;
    }

    .footer-bottom a {
      color: rgba(255, 255, 255, 0.64);
    }

    .footer-bottom a:hover {
      color: var(--amber);
    }

    @media (max-width: 1100px) {
      .container {
        width: min(var(--container), calc(100% - 48px));
      }

      .nav-actions .text-link {
        display: none;
      }

      .hero {
        min-height: auto;
      }

      .hero .container {
        grid-template-columns: 1fr;
        padding-top: 58px;
      }

      .hero-panel {
        max-width: 760px;
      }

      .status-bar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .overview-layout,
      .category-preview,
      .proof-grid,
      .faq-layout {
        grid-template-columns: 1fr;
      }

      .faq-intro {
        position: static;
      }

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

      .timeline::before {
        display: none;
      }

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

    @media (max-width: 840px) {
      .nav-wrap {
        min-height: 68px;
      }

      .main-nav,
      .nav-actions {
        display: none;
      }

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

      .mobile-menu.is-open {
        display: block;
      }

      .section {
        padding: 62px 0;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
        margin-bottom: 26px;
      }

      .quick-grid,
      .security-grid,
      .panel-grid {
        grid-template-columns: 1fr;
      }

      .quick-card {
        grid-template-columns: 52px 1fr auto;
        padding: 20px;
      }

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

      .feature-img {
        height: 230px;
      }

      .article-row {
        grid-template-columns: 42px 1fr;
      }

      .row-arrow {
        display: none;
      }

      .feedback-box {
        grid-template-columns: 1fr;
      }

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

      .cta-actions {
        justify-content: flex-start;
      }
    }

    @media (max-width: 560px) {
      .container {
        width: min(var(--container), calc(100% - 32px));
      }

      body {
        font-size: 15px;
      }

      .brand {
        min-width: 0;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
      }

      .brand-name {
        font-size: 15px;
        max-width: 190px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .brand-sub {
        display: none;
      }

      .hero .container {
        padding: 44px 0 38px;
      }

      .hero h1 {
        font-size: 32px;
      }

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

      .hero-actions,
      .cta-actions {
        display: grid;
        grid-template-columns: 1fr;
      }

      .btn {
        width: 100%;
      }

      .hero-panel,
      .cta-card,
      .proof-card {
        border-radius: 22px;
        padding: 20px;
      }

      .panel-top {
        align-items: flex-start;
        flex-direction: column;
      }

      .status-bar {
        grid-template-columns: 1fr;
      }

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

      .quick-num {
        width: 48px;
        height: 48px;
      }

      .quick-arrow {
        justify-self: start;
      }

      .overview-media,
      .overview-media img {
        min-height: 320px;
      }

      .media-caption {
        left: 16px;
        right: 16px;
        bottom: 16px;
        padding: 16px;
      }

      .security-card,
      .check-item {
        grid-template-columns: 1fr;
      }

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

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
      }
    }

/* roulang page: category1 */
:root{
      --ink:#10201f;
      --ink-2:#18322f;
      --jade:#2e8c7a;
      --jade-dark:#237565;
      --jade-soft:#eaf2ee;
      --amber:#d8a24a;
      --amber-dark:#b9832e;
      --paper:#f6f3ec;
      --card:#ffffff;
      --text:#24312f;
      --muted:#6e7a76;
      --line:rgba(16,32,31,.12);
      --line-strong:rgba(46,140,122,.34);
      --shadow:0 14px 36px rgba(16,32,31,.08);
      --shadow-strong:0 18px 48px rgba(16,32,31,.13);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:28px;
      --container:1200px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(46,140,122,.10), transparent 30%),
        linear-gradient(180deg,#fbfaf6 0%,var(--paper) 52%,#eef5f1 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(46,140,122,.18)}
    .container{width:min(var(--container),calc(100% - 64px));margin:0 auto}
    .skip-link{
      position:absolute;left:16px;top:-60px;z-index:1000;
      background:var(--ink);color:#fff;padding:10px 14px;border-radius:10px;
      transition:var(--ease)
    }
    .skip-link:focus{top:12px;outline:3px solid rgba(216,162,74,.45)}
    .site-header{
      position:sticky;top:0;z-index:100;
      background:rgba(246,243,236,.94);
      border-bottom:1px solid var(--line);
      backdrop-filter:saturate(130%) blur(10px);
      box-shadow:0 8px 24px rgba(16,32,31,.04)
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:inline-grid;place-items:center;
      background:linear-gradient(135deg,var(--ink),var(--jade));
      color:#fff;font-weight:800;letter-spacing:.5px;
      box-shadow:0 10px 24px rgba(16,32,31,.18)
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.25}
    .brand-text strong{font-size:17px;color:var(--ink);font-weight:800}
    .brand-text span{font-size:12px;color:var(--muted)}
    .main-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      background:rgba(234,242,238,.72);
      border:1px solid rgba(16,32,31,.08);
      border-radius:999px
    }
    .main-nav a{
      position:relative;
      min-height:42px;
      display:inline-flex;
      align-items:center;
      padding:9px 16px;
      border-radius:999px;
      color:var(--ink-2);
      font-size:15px;
      font-weight:700;
      transition:var(--ease)
    }
    .main-nav a:hover{background:#fff;color:var(--jade);box-shadow:0 8px 18px rgba(16,32,31,.06)}
    .main-nav a.active{
      background:var(--jade);
      color:#fff;
      box-shadow:0 10px 22px rgba(46,140,122,.20)
    }
    .header-actions{display:flex;align-items:center;gap:12px}
    .header-link{
      font-size:14px;color:var(--muted);
      border-bottom:1px dashed rgba(16,32,31,.25);
      transition:var(--ease)
    }
    .header-link:hover{color:var(--jade);border-color:var(--jade)}
    .menu-toggle{
      display:none;
      width:44px;height:44px;border-radius:14px;
      background:#fff;border:1px solid var(--line);
      color:var(--ink);
      align-items:center;justify-content:center;
      transition:var(--ease)
    }
    .menu-toggle:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}
    .menu-toggle span,.menu-toggle span:before,.menu-toggle span:after{
      display:block;width:18px;height:2px;background:currentColor;border-radius:99px;content:"";transition:var(--ease)
    }
    .menu-toggle span:before{transform:translateY(-6px)}
    .menu-toggle span:after{transform:translateY(4px)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:12px 20px;border-radius:14px;
      font-weight:800;font-size:15px;
      border:1px solid transparent;
      transition:var(--ease);
      white-space:nowrap
    }
    .btn-primary{background:var(--jade);color:#fff;box-shadow:0 12px 24px rgba(46,140,122,.20)}
    .btn-primary:hover{background:var(--jade-dark);transform:translateY(-2px);box-shadow:0 16px 28px rgba(46,140,122,.26)}
    .btn-secondary{background:#fff;color:var(--ink);border-color:var(--line)}
    .btn-secondary:hover{border-color:var(--line-strong);background:var(--jade-soft);transform:translateY(-2px)}
    .btn-amber{background:var(--amber);color:#2d2211}
    .btn-amber:hover{background:var(--amber-dark);color:#fff;transform:translateY(-2px)}
    .btn:focus-visible,.main-nav a:focus-visible,.footer-links a:focus-visible,.tag:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(216,162,74,.42);
      outline-offset:3px
    }

    main{overflow:hidden}
    .inner-hero{
      position:relative;
      padding:56px 0 42px;
      background:
        linear-gradient(120deg,rgba(246,243,236,.96),rgba(234,242,238,.88)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border-bottom:1px solid var(--line)
    }
    .inner-hero:after{
      content:"";
      position:absolute;inset:auto -80px -120px auto;
      width:320px;height:320px;border-radius:50%;
      background:rgba(216,162,74,.16);
      filter:blur(8px)
    }
    .breadcrumb{
      display:flex;align-items:center;gap:8px;
      color:var(--muted);
      font-size:14px;
      margin-bottom:22px;
      position:relative;z-index:1
    }
    .breadcrumb a{transition:var(--ease)}
    .breadcrumb a:hover{color:var(--jade)}
    .breadcrumb span:last-child{color:var(--ink);font-weight:700}
    .hero-grid{
      position:relative;z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.04fr) minmax(320px,.76fr);
      gap:42px;
      align-items:center
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      color:var(--jade-dark);
      background:#fff;
      border:1px solid rgba(46,140,122,.18);
      font-size:13px;font-weight:800;
      box-shadow:0 8px 18px rgba(16,32,31,.04)
    }
    .eyebrow:before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--amber);
      box-shadow:0 0 0 5px rgba(216,162,74,.14)
    }
    h1{
      margin-top:18px;
      max-width:760px;
      font-size:clamp(30px,4.1vw,48px);
      line-height:1.2;
      letter-spacing:-.02em;
      color:var(--ink);
      font-weight:850
    }
    .hero-lead{
      margin-top:18px;
      max-width:720px;
      color:#43514e;
      font-size:18px;
      line-height:1.85
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
    .hero-panel{
      background:rgba(255,255,255,.88);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:var(--shadow-strong)
    }
    .panel-head{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding-bottom:16px;margin-bottom:16px;
      border-bottom:1px solid var(--line)
    }
    .panel-head strong{font-size:18px;color:var(--ink)}
    .status-pill{
      font-size:12px;font-weight:800;
      color:var(--jade-dark);
      background:var(--jade-soft);
      border:1px solid rgba(46,140,122,.18);
      border-radius:999px;
      padding:6px 10px
    }
    .check-list{display:grid;gap:12px}
    .check-item{
      display:grid;
      grid-template-columns:36px 1fr;
      gap:12px;
      padding:14px;
      border:1px solid var(--line);
      border-radius:16px;
      background:linear-gradient(180deg,#fff,rgba(246,243,236,.72));
      transition:var(--ease)
    }
    .check-item:hover{border-color:var(--line-strong);transform:translateY(-2px)}
    .check-icon{
      width:36px;height:36px;border-radius:12px;
      display:grid;place-items:center;
      background:var(--ink);
      color:#fff;font-weight:900
    }
    .check-item:nth-child(2) .check-icon{background:var(--jade)}
    .check-item:nth-child(3) .check-icon{background:var(--amber);color:#2d2211}
    .check-item strong{display:block;color:var(--ink);line-height:1.35}
    .check-item p{font-size:14px;color:var(--muted);line-height:1.65;margin-top:2px}
    .tag-row{
      display:flex;gap:10px;flex-wrap:wrap;
      margin-top:24px
    }
    .tag{
      display:inline-flex;align-items:center;justify-content:center;
      min-height:38px;
      padding:8px 14px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--ink-2);
      font-size:14px;
      font-weight:750;
      transition:var(--ease)
    }
    .tag:hover{border-color:var(--line-strong);color:var(--jade);transform:translateY(-1px)}
    .tag.is-active{background:var(--jade);color:#fff;border-color:var(--jade)}

    .section{padding:84px 0}
    .section.alt{background:rgba(234,242,238,.55);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:30px
    }
    .section-kicker{
      display:inline-flex;
      color:var(--jade-dark);
      font-size:13px;
      font-weight:850;
      letter-spacing:.06em;
      margin-bottom:8px
    }
    h2{
      color:var(--ink);
      font-size:clamp(25px,3vw,34px);
      line-height:1.28;
      font-weight:850
    }
    .section-head p{
      max-width:430px;
      color:var(--muted);
      line-height:1.8
    }
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px
    }
    .feature-card{
      position:relative;
      min-height:210px;
      padding:24px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 20px rgba(16,32,31,.04);
      transition:var(--ease);
      overflow:hidden
    }
    .feature-card:before{
      content:"";
      position:absolute;left:24px;top:0;
      width:48px;height:4px;border-radius:0 0 8px 8px;
      background:var(--jade)
    }
    .feature-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow);transform:translateY(-4px)}
    .feature-card .num{
      display:inline-grid;place-items:center;
      width:42px;height:42px;border-radius:14px;
      background:var(--jade-soft);
      color:var(--jade-dark);
      font-weight:900;
      margin:10px 0 18px
    }
    .feature-card h3{font-size:20px;color:var(--ink);line-height:1.35;margin-bottom:10px}
    .feature-card p{color:var(--muted);font-size:15px;line-height:1.72}

    .guide-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 350px;
      gap:24px;
      align-items:start
    }
    .highlight-card{
      display:grid;
      grid-template-columns:42% 1fr;
      gap:26px;
      padding:20px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      margin-bottom:20px;
      transition:var(--ease)
    }
    .highlight-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-strong);transform:translateY(-3px)}
    .highlight-media{
      position:relative;
      min-height:260px;
      border-radius:22px;
      overflow:hidden;
      background:var(--jade-soft)
    }
    .highlight-media img{width:100%;height:100%;object-fit:cover}
    .highlight-media:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,transparent,rgba(16,32,31,.24))
    }
    .badge{
      display:inline-flex;align-items:center;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(216,162,74,.18);
      color:#7a541d;
      font-size:13px;
      font-weight:850
    }
    .highlight-body h3{
      margin:14px 0 12px;
      color:var(--ink);
      font-size:27px;
      line-height:1.3
    }
    .highlight-body p{color:var(--muted);line-height:1.85}
    .meta-line{
      display:flex;flex-wrap:wrap;gap:10px;
      margin:18px 0;
      color:var(--muted);
      font-size:14px
    }
    .meta-line span{
      background:var(--paper);
      border:1px solid var(--line);
      border-radius:999px;
      padding:5px 10px
    }
    .topic-list{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px
    }
    .topic-card{
      padding:22px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--line);
      transition:var(--ease)
    }
    .topic-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow);transform:translateY(-3px)}
    .topic-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
    .topic-label{
      color:var(--jade-dark);
      font-size:13px;
      font-weight:850;
      background:var(--jade-soft);
      border-radius:999px;
      padding:5px 9px
    }
    .arrow{
      width:32px;height:32px;border-radius:12px;
      display:grid;place-items:center;
      background:var(--paper);
      color:var(--ink);
      transition:var(--ease)
    }
    .topic-card:hover .arrow{background:var(--jade);color:#fff;transform:translateX(3px)}
    .topic-card h3{font-size:19px;line-height:1.42;color:var(--ink);margin-bottom:8px}
    .topic-card p{color:var(--muted);font-size:15px;line-height:1.7}
    .aside{
      position:sticky;
      top:98px;
      display:grid;
      gap:16px
    }
    .aside-card{
      padding:22px;
      border-radius:var(--radius);
      background:linear-gradient(180deg,#fff,rgba(246,243,236,.88));
      border:1px solid var(--line);
      box-shadow:0 8px 20px rgba(16,32,31,.04)
    }
    .aside-card:before{
      content:"";
      display:block;
      width:42px;height:4px;border-radius:99px;
      background:var(--jade);
      margin-bottom:16px
    }
    .aside-card h3{font-size:19px;color:var(--ink);margin-bottom:12px}
    .mini-list{display:grid;gap:11px}
    .mini-list li{
      list-style:none;
      display:flex;gap:10px;
      color:var(--muted);
      font-size:14px;
      line-height:1.6
    }
    .mini-list li:before{
      content:"";
      flex:0 0 7px;
      width:7px;height:7px;margin-top:9px;
      border-radius:50%;
      background:var(--amber)
    }
    .keyword-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .keyword-cloud span{
      padding:6px 9px;border-radius:999px;
      font-size:13px;font-weight:750;
      background:var(--jade-soft);
      color:var(--jade-dark);
      border:1px solid rgba(46,140,122,.16)
    }

    .process{
      position:relative;
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:16px
    }
    .process:before{
      content:"";
      position:absolute;
      left:8%;right:8%;top:35px;
      height:2px;
      background:linear-gradient(90deg,var(--jade),rgba(216,162,74,.7));
      z-index:0
    }
    .step{
      position:relative;z-index:1;
      padding:22px 18px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:20px;
      box-shadow:0 8px 18px rgba(16,32,31,.04)
    }
    .step-index{
      width:42px;height:42px;border-radius:50%;
      display:grid;place-items:center;
      background:var(--jade);
      color:#fff;
      font-weight:900;
      border:5px solid var(--paper);
      margin-bottom:14px
    }
    .step:nth-child(3) .step-index{background:var(--amber);color:#2d2211}
    .step h3{font-size:18px;color:var(--ink);margin-bottom:8px}
    .step p{font-size:14px;color:var(--muted);line-height:1.68}

    .security-panel{
      background:var(--ink);
      color:#eaf2ee;
      border-radius:var(--radius-lg);
      padding:34px;
      overflow:hidden;
      position:relative
    }
    .security-panel:before{
      content:"";
      position:absolute;right:-80px;top:-80px;
      width:260px;height:260px;border-radius:50%;
      background:rgba(216,162,74,.14)
    }
    .security-panel h2{color:#fff}
    .security-panel .section-head p{color:#b8c6c1}
    .security-grid{
      position:relative;z-index:1;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px
    }
    .security-card{
      padding:22px;
      border-radius:20px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(234,242,238,.14);
      transition:var(--ease)
    }
    .security-card:hover{background:rgba(255,255,255,.10);border-color:rgba(216,162,74,.45);transform:translateY(-3px)}
    .security-card .icon{
      width:40px;height:40px;border-radius:14px;
      display:grid;place-items:center;
      background:rgba(216,162,74,.18);
      color:var(--amber);
      font-weight:900;
      margin-bottom:14px
    }
    .security-card h3{font-size:18px;color:#fff;margin-bottom:8px}
    .security-card p{font-size:14px;color:#c8d4d0;line-height:1.72}

    .pagination{
      display:flex;justify-content:center;align-items:center;gap:8px;
      margin-top:28px
    }
    .page-btn{
      min-width:42px;height:42px;
      display:inline-flex;align-items:center;justify-content:center;
      border-radius:12px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--ink);
      font-weight:800;
      transition:var(--ease)
    }
    .page-btn:hover{background:var(--jade-soft);border-color:var(--line-strong)}
    .page-btn.current{background:var(--ink);color:#fff;border-color:var(--ink)}

    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px
    }
    .faq-item{
      border:1px solid var(--line);
      background:#fff;
      border-radius:18px;
      overflow:hidden;
      transition:var(--ease)
    }
    .faq-item:hover{border-color:var(--line-strong)}
    .faq-question{
      width:100%;
      min-height:62px;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      background:#fff;
      color:var(--ink);
      font-weight:850;
      text-align:left
    }
    .faq-question .sign{
      flex:0 0 28px;
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:var(--jade-soft);
      color:var(--jade-dark);
      transition:var(--ease)
    }
    .faq-answer{
      display:none;
      padding:0 20px 18px;
      color:var(--muted);
      font-size:15px;
      line-height:1.75
    }
    .faq-item.open{background:var(--jade-soft)}
    .faq-item.open .faq-question{background:var(--jade-soft)}
    .faq-item.open .sign{background:var(--jade);color:#fff;transform:rotate(45deg)}
    .faq-item.open .faq-answer{display:block}

    .cta-box{
      position:relative;
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:28px;
      padding:34px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(120deg,rgba(16,32,31,.92),rgba(24,50,47,.88)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      color:#fff;
      overflow:hidden
    }
    .cta-box:after{
      content:"";
      position:absolute;right:26%;top:0;bottom:0;
      width:1px;background:rgba(255,255,255,.12)
    }
    .cta-box h2{color:#fff;margin-bottom:8px}
    .cta-box p{color:#c8d4d0;max-width:690px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}

    .site-footer{
      background:var(--ink);
      color:#c6d2ce;
      padding:58px 0 22px
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .7fr .7fr .9fr;
      gap:34px;
      padding-bottom:32px;
      border-bottom:1px solid rgba(234,242,238,.13)
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px
    }
    .footer-brand strong{color:#fff;font-size:18px}
    .footer-desc{max-width:420px;color:#aebdb8;font-size:14px;line-height:1.8}
    .footer-col h3{color:#fff;font-size:16px;margin-bottom:13px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{
      color:#b6c4c0;
      font-size:14px;
      transition:var(--ease)
    }
    .footer-links a:hover{color:var(--amber);transform:translateX(3px)}
    .footer-note{
      color:#aebdb8;
      font-size:14px;
      line-height:1.75;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(234,242,238,.11);
      border-radius:16px;
      padding:14px
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding-top:20px;
      font-size:13px;
      color:#91a49e
    }
    .footer-bottom a{color:#c6d2ce;transition:var(--ease)}
    .footer-bottom a:hover{color:var(--amber)}

    @media (max-width:1100px){
      .header-actions .header-link{display:none}
      .hero-grid,.guide-layout{grid-template-columns:1fr}
      .aside{position:static;grid-template-columns:repeat(2,1fr)}
      .feature-grid{grid-template-columns:repeat(2,1fr)}
      .process{grid-template-columns:repeat(2,1fr)}
      .process:before{display:none}
      .security-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
      .cta-box{grid-template-columns:1fr}
      .cta-box:after{display:none}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,var(--container))}
      .header-inner{min-height:66px}
      .brand-text span{display:none}
      .menu-toggle{display:flex}
      .main-nav{
        position:absolute;
        left:16px;right:16px;top:72px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:18px;
        padding:10px;
        background:#fff;
        box-shadow:var(--shadow-strong)
      }
      .main-nav.is-open{display:flex}
      .main-nav a{justify-content:center;border-radius:14px;min-height:46px}
      .header-actions .btn{display:none}
      .inner-hero{padding:34px 0 30px}
      .breadcrumb{font-size:13px;overflow:auto;white-space:nowrap;padding-bottom:2px}
      .hero-lead{font-size:16px}
      .hero-actions .btn{width:100%}
      .hero-panel{padding:16px;border-radius:22px}
      .tag-row{
        flex-wrap:nowrap;
        overflow-x:auto;
        padding-bottom:8px;
        scrollbar-width:thin
      }
      .tag{flex:0 0 auto}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-head p{margin-top:10px}
      .feature-grid,.topic-list,.aside,.security-grid,.faq-grid{grid-template-columns:1fr}
      .highlight-card{grid-template-columns:1fr}
      .highlight-media{min-height:210px}
      .highlight-body h3{font-size:23px}
      .process{grid-template-columns:1fr}
      .security-panel{padding:24px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .brand-text strong{font-size:15px}
      .panel-head{align-items:flex-start;flex-direction:column}
      .check-item{grid-template-columns:32px 1fr;padding:12px}
      .check-icon{width:32px;height:32px;border-radius:10px}
      .feature-card,.topic-card,.aside-card{padding:20px}
      .cta-box{padding:24px}
      .cta-actions .btn{width:100%}
      .pagination{justify-content:flex-start;overflow-x:auto;padding-bottom:4px}
    }