/* roulang page: index */
:root {
      --bg: #080b0d;
      --bg-soft: #101617;
      --bg-card: #151d1d;
      --bg-card-2: #182221;
      --text: #f3f7f5;
      --text-muted: #aab6b3;
      --text-soft: #7f8d89;
      --line: rgba(214, 255, 239, .13);
      --line-strong: rgba(62, 255, 204, .35);
      --primary: #35f0be;
      --primary-dark: #11b88c;
      --accent: #ffb357;
      --accent-dark: #d77a24;
      --danger: #ff6d5f;
      --shadow: 0 24px 70px rgba(0, 0, 0, .38);
      --shadow-soft: 0 14px 38px rgba(0, 0, 0, .24);
      --radius: 20px;
      --radius-lg: 30px;
      --radius-pill: 999px;
      --container: 1180px;
      --header-h: 78px;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: var(--font);
      color: var(--text);
      background:
        radial-gradient(circle at 18% 5%, rgba(53, 240, 190, .13), transparent 32%),
        radial-gradient(circle at 85% 12%, rgba(255, 179, 87, .09), transparent 28%),
        linear-gradient(180deg, #07090b 0%, #0b100f 46%, #080b0d 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -2;
      opacity: .36;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -1;
      opacity: .15;
      background-image: radial-gradient(rgba(255,255,255,.55) .5px, transparent .7px);
      background-size: 4px 4px;
    }

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

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

    button,
    input {
      font: inherit;
    }

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

    :focus-visible {
      outline: 3px solid rgba(53, 240, 190, .55);
      outline-offset: 4px;
      border-radius: 12px;
    }

    .container {
      width: min(100% - 44px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      backdrop-filter: blur(18px);
      background: rgba(8, 11, 13, .78);
      border-bottom: 1px solid rgba(214, 255, 239, .11);
    }

    .nav-wrap {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 245px;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background:
        linear-gradient(135deg, rgba(53,240,190,.95), rgba(255,179,87,.9)),
        linear-gradient(180deg, #182221, #111);
      box-shadow: 0 0 0 1px rgba(255,255,255,.15) inset, 0 14px 26px rgba(53,240,190,.13);
      display: grid;
      place-items: center;
      color: #06100d;
      font-weight: 900;
      letter-spacing: -.04em;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }

    .brand-title {
      font-size: 17px;
      font-weight: 900;
      letter-spacing: .01em;
      color: var(--text);
    }

    .brand-sub {
      margin-top: 4px;
      font-size: 12px;
      color: var(--text-muted);
    }

    .site-nav {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 6px;
      border: 1px solid rgba(214,255,239,.1);
      border-radius: var(--radius-pill);
      background: rgba(255,255,255,.035);
    }

    .site-nav a {
      padding: 10px 16px;
      border-radius: var(--radius-pill);
      color: var(--text-muted);
      font-size: 14px;
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }

    .site-nav a:hover {
      color: var(--text);
      background: rgba(255,255,255,.06);
    }

    .site-nav a.active {
      color: #06100d;
      background: var(--primary);
      font-weight: 800;
    }

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

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: rgba(255,255,255,.04);
    }

    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      background: var(--text);
      border-radius: 2px;
      transition: transform .2s ease;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: var(--radius-pill);
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 800;
      white-space: nowrap;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    }

    .btn-primary {
      color: #06100d;
      background: linear-gradient(135deg, var(--primary), #7cffdc);
      box-shadow: 0 14px 30px rgba(53, 240, 190, .18);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 20px 44px rgba(53, 240, 190, .28);
    }

    .btn-secondary {
      color: var(--text);
      background: rgba(255,255,255,.045);
      border-color: rgba(214,255,239,.16);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      border-color: rgba(53,240,190,.42);
      background: rgba(53,240,190,.08);
    }

    .btn-ghost {
      min-height: 40px;
      padding: 9px 14px;
      border-radius: 14px;
      color: var(--primary);
      border-color: rgba(53,240,190,.25);
      background: rgba(53,240,190,.055);
    }

    .btn-ghost:hover {
      background: rgba(53,240,190,.11);
      border-color: rgba(53,240,190,.48);
    }

    .hero {
      position: relative;
      padding: 74px 0 46px;
      min-height: calc(100vh - var(--header-h));
      display: flex;
      align-items: center;
      overflow: hidden;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      z-index: -1;
      background:
        linear-gradient(90deg, rgba(8,11,13,.94) 0%, rgba(8,11,13,.72) 48%, rgba(8,11,13,.92) 100%),
        linear-gradient(180deg, rgba(8,11,13,.18), #080b0d 92%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity: .9;
    }

    .hero-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(330px, .72fr);
      gap: 34px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 13px;
      border-radius: var(--radius-pill);
      color: var(--primary);
      background: rgba(53,240,190,.08);
      border: 1px solid rgba(53,240,190,.22);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .04em;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 16px rgba(53,240,190,.95);
    }

    h1 {
      margin: 22px 0 18px;
      max-width: 820px;
      font-size: clamp(42px, 6vw, 76px);
      line-height: 1.05;
      letter-spacing: -.055em;
      font-weight: 950;
    }

    .hero-lead {
      max-width: 760px;
      margin: 0;
      color: #c9d5d2;
      font-size: clamp(16px, 1.5vw, 19px);
    }

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

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 28px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border: 1px solid rgba(214,255,239,.13);
      border-radius: var(--radius-pill);
      color: var(--text-muted);
      background: rgba(255,255,255,.035);
      font-size: 13px;
    }

    .tag strong {
      color: var(--text);
    }

    .hero-panel {
      position: relative;
      padding: 22px;
      border: 1px solid rgba(214,255,239,.16);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(21,29,29,.92), rgba(13,18,18,.94));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      opacity: .7;
      background:
        radial-gradient(circle at 20% 5%, rgba(53,240,190,.18), transparent 31%),
        linear-gradient(135deg, transparent 0%, rgba(255,179,87,.08) 100%);
      pointer-events: none;
    }

    .panel-inner {
      position: relative;
      z-index: 1;
    }

    .panel-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding-bottom: 18px;
      border-bottom: 1px solid rgba(214,255,239,.12);
    }

    .panel-title {
      margin: 0;
      font-size: 20px;
      font-weight: 900;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 10px;
      border-radius: var(--radius-pill);
      background: rgba(53,240,190,.1);
      color: var(--primary);
      border: 1px solid rgba(53,240,190,.25);
      font-size: 12px;
      font-weight: 800;
    }

    .status-badge::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--primary);
    }

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

    .quick-item {
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 12px;
      padding: 14px;
      border: 1px solid rgba(214,255,239,.11);
      border-radius: 18px;
      background: rgba(255,255,255,.035);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }

    .quick-item:hover {
      transform: translateY(-2px);
      border-color: rgba(53,240,190,.34);
      background: rgba(53,240,190,.065);
    }

    .quick-icon {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 13px;
      background: rgba(53,240,190,.1);
      color: var(--primary);
      font-weight: 900;
    }

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

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

    .quick-arrow {
      color: var(--accent);
      font-weight: 900;
    }

    .section {
      padding: 76px 0;
    }

    .section-tight {
      padding: 54px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
    }

    .section-kicker {
      margin: 0 0 8px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: .08em;
    }

    .section-title {
      margin: 0;
      font-size: clamp(28px, 3.4vw, 44px);
      line-height: 1.15;
      letter-spacing: -.035em;
      font-weight: 950;
    }

    .section-desc {
      max-width: 540px;
      margin: 0;
      color: var(--text-muted);
      font-size: 15px;
    }

    .grid {
      display: grid;
      gap: 18px;
    }

    .grid-3 {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .grid-4 {
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .card {
      border: 1px solid rgba(214,255,239,.12);
      border-radius: var(--radius);
      background: linear-gradient(180deg, rgba(21,29,29,.95), rgba(15,21,21,.96));
      box-shadow: var(--shadow-soft);
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
      overflow: hidden;
    }

    .card:hover {
      transform: translateY(-4px);
      border-color: rgba(53,240,190,.33);
      box-shadow: 0 24px 55px rgba(0,0,0,.34);
    }

    .feature-card {
      padding: 24px;
      min-height: 232px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .card-no {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: rgba(255,179,87,.1);
      color: var(--accent);
      border: 1px solid rgba(255,179,87,.2);
      font-weight: 950;
    }

    .feature-card h3,
    .content-card h3,
    .proof-card h3 {
      margin: 16px 0 8px;
      font-size: 20px;
      line-height: 1.25;
    }

    .feature-card p,
    .content-card p,
    .proof-card p {
      margin: 0;
      color: var(--text-muted);
      font-size: 14px;
    }

    .feature-link {
      margin-top: 20px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 850;
    }

    .showcase {
      display: grid;
      grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
      gap: 22px;
      align-items: stretch;
    }

    .image-card {
      min-height: 430px;
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(214,255,239,.12);
      box-shadow: var(--shadow);
      background: #111;
    }

    .image-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: .76;
    }

    .image-overlay {
      position: absolute;
      inset: auto 22px 22px 22px;
      padding: 18px;
      border-radius: 20px;
      background: rgba(8,11,13,.82);
      border: 1px solid rgba(214,255,239,.14);
    }

    .image-overlay b {
      display: block;
      margin-bottom: 5px;
      font-size: 18px;
    }

    .image-overlay span {
      color: var(--text-muted);
      font-size: 14px;
    }

    .guide-stack {
      display: grid;
      gap: 14px;
    }

    .guide-row {
      display: grid;
      grid-template-columns: 46px 1fr;
      gap: 15px;
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid rgba(214,255,239,.11);
      background: rgba(255,255,255,.035);
      transition: background .2s ease, border-color .2s ease;
    }

    .guide-row:hover {
      background: rgba(53,240,190,.055);
      border-color: rgba(53,240,190,.24);
    }

    .guide-index {
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      color: #06100d;
      background: var(--primary);
      font-weight: 950;
    }

    .guide-row h3 {
      margin: 0 0 6px;
      font-size: 19px;
    }

    .guide-row p {
      margin: 0;
      color: var(--text-muted);
      font-size: 14px;
    }

    .notice-band {
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255,179,87,.22);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(90deg, rgba(255,179,87,.15), rgba(53,240,190,.09)),
        rgba(21,29,29,.92);
      box-shadow: var(--shadow-soft);
    }

    .notice-inner {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 24px;
    }

    .notice-label {
      padding: 8px 12px;
      border-radius: var(--radius-pill);
      color: #160d03;
      background: var(--accent);
      font-weight: 950;
      font-size: 13px;
    }

    .notice-text {
      color: #f5eee4;
      font-weight: 700;
    }

    .content-card {
      padding-bottom: 22px;
    }

    .content-img {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #111;
    }

    .content-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transform: scale(1.01);
      transition: transform .28s ease, opacity .28s ease;
      opacity: .82;
    }

    .content-card:hover .content-img img {
      transform: scale(1.055);
      opacity: .94;
    }

    .content-body {
      padding: 20px 20px 0;
    }

    .mini-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .mini-tag {
      padding: 5px 9px;
      border-radius: var(--radius-pill);
      color: var(--text-muted);
      border: 1px solid rgba(214,255,239,.11);
      background: rgba(255,255,255,.03);
      font-size: 12px;
    }

    .proof-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 20px;
      align-items: stretch;
    }

    .proof-main {
      padding: 28px;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(214,255,239,.12);
      background:
        linear-gradient(135deg, rgba(53,240,190,.09), transparent 38%),
        linear-gradient(180deg, rgba(21,29,29,.96), rgba(15,21,21,.96));
    }

    .proof-main h2 {
      margin: 0 0 12px;
      font-size: 31px;
      line-height: 1.2;
    }

    .proof-main p {
      color: var(--text-muted);
      margin: 0;
    }

    .proof-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 24px;
    }

    .proof-point {
      padding: 16px;
      border-radius: 18px;
      border: 1px solid rgba(214,255,239,.1);
      background: rgba(255,255,255,.035);
    }

    .proof-point b {
      display: block;
      color: var(--primary);
      font-size: 22px;
      line-height: 1.1;
    }

    .proof-point span {
      display: block;
      margin-top: 6px;
      color: var(--text-muted);
      font-size: 13px;
    }

    .proof-side {
      display: grid;
      gap: 14px;
    }

    .proof-card {
      padding: 22px;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 24px;
      align-items: start;
    }

    .faq-intro {
      position: sticky;
      top: calc(var(--header-h) + 24px);
      padding: 26px;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(214,255,239,.12);
      background:
        linear-gradient(180deg, rgba(21,29,29,.96), rgba(12,17,17,.98));
      box-shadow: var(--shadow-soft);
    }

    .faq-intro h2 {
      margin: 0 0 10px;
      font-size: 30px;
      line-height: 1.2;
    }

    .faq-intro p {
      margin: 0;
      color: var(--text-muted);
    }

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

    .faq-item {
      border: 1px solid rgba(214,255,239,.12);
      border-radius: 18px;
      background: rgba(21,29,29,.78);
      overflow: hidden;
    }

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

    .faq-question .plus {
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 10px;
      color: var(--primary);
      background: rgba(53,240,190,.08);
      transition: transform .2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      color: var(--text-muted);
      font-size: 14px;
    }

    .faq-item.open {
      border-color: rgba(53,240,190,.3);
      background: rgba(53,240,190,.055);
    }

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

    .faq-item.open .plus {
      transform: rotate(45deg);
    }

    .cta {
      padding: 34px;
      border-radius: 34px;
      border: 1px solid rgba(53,240,190,.25);
      background:
        linear-gradient(135deg, rgba(53,240,190,.16), rgba(255,179,87,.09)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .cta-inner {
      display: grid;
      grid-template-columns: 1fr auto;
      align-items: center;
      gap: 24px;
      padding: 26px;
      border-radius: 26px;
      background: rgba(8,11,13,.82);
      border: 1px solid rgba(214,255,239,.13);
    }

    .cta h2 {
      margin: 0 0 8px;
      font-size: clamp(28px, 3.2vw, 42px);
      line-height: 1.15;
    }

    .cta p {
      margin: 0;
      color: var(--text-muted);
      max-width: 720px;
    }

    .site-footer {
      margin-top: 40px;
      padding: 46px 0 28px;
      border-top: 1px solid rgba(214,255,239,.11);
      background: rgba(6,9,10,.72);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 26px;
      align-items: start;
    }

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

    .footer-title {
      font-size: 18px;
      font-weight: 950;
    }

    .footer-desc {
      max-width: 650px;
      margin: 0;
      color: var(--text-muted);
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .footer-links a {
      padding: 8px 12px;
      border-radius: 12px;
      color: var(--text-muted);
      border: 1px solid rgba(214,255,239,.1);
      background: rgba(255,255,255,.025);
      font-size: 13px;
      transition: color .2s ease, border-color .2s ease, background .2s ease;
    }

    .footer-links a:hover {
      color: var(--text);
      border-color: rgba(53,240,190,.3);
      background: rgba(53,240,190,.06);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      margin-top: 30px;
      padding-top: 22px;
      border-top: 1px solid rgba(214,255,239,.09);
      color: var(--text-soft);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .brand {
        min-width: unset;
      }

      .hero-layout,
      .showcase,
      .proof-grid,
      .faq-wrap {
        grid-template-columns: 1fr;
      }

      .hero {
        min-height: auto;
        padding-top: 58px;
      }

      .hero-panel {
        max-width: 720px;
      }

      .grid-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .faq-intro {
        position: static;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-h: auto;
      }

      .container {
        width: min(100% - 30px, var(--container));
      }

      .site-header {
        height: auto;
      }

      .nav-wrap {
        min-height: 72px;
        flex-wrap: wrap;
        padding: 12px 0;
      }

      .site-nav {
        display: none;
        order: 3;
        width: 100%;
        justify-content: flex-start;
        overflow-x: auto;
        border-radius: 18px;
      }

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

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

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

      .brand-title {
        font-size: 15px;
      }

      .brand-sub {
        display: none;
      }

      .hero {
        padding: 45px 0 34px;
      }

      .hero-layout {
        gap: 22px;
      }

      h1 {
        font-size: clamp(38px, 12vw, 58px);
      }

      .hero-actions,
      .section-head,
      .notice-inner,
      .cta-inner,
      .footer-grid,
      .footer-bottom {
        flex-direction: column;
        display: flex;
        align-items: flex-start;
      }

      .section {
        padding: 58px 0;
      }

      .section-tight {
        padding: 42px 0;
      }

      .grid-3,
      .grid-4,
      .proof-points {
        grid-template-columns: 1fr;
      }

      .image-card {
        min-height: 330px;
      }

      .cta {
        padding: 18px;
        border-radius: 26px;
      }

      .cta-inner {
        padding: 22px;
      }

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 520px) {
      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      .hero-tags {
        gap: 8px;
      }

      .tag {
        width: 100%;
        justify-content: space-between;
      }

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

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

      .quick-item {
        align-items: start;
      }

      .quick-arrow {
        display: none;
      }

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

      .notice-inner {
        padding: 20px;
      }

      .section-title {
        font-size: 29px;
      }
    }

/* roulang page: category1 */
:root{
      --bg:#08100d;
      --bg-2:#0d1613;
      --panel:#111c18;
      --panel-2:#15221d;
      --card:#12201b;
      --card-2:#0f1b17;
      --line:rgba(255,255,255,.09);
      --line-2:rgba(88,240,186,.18);
      --text:#edf5f2;
      --muted:#9eb0ad;
      --muted-2:#7f918d;
      --accent:#59efb9;
      --accent-2:#f2ad56;
      --accent-3:#a5ffea;
      --danger:#ff7d6d;
      --shadow:0 20px 50px rgba(0,0,0,.34);
      --shadow-soft:0 12px 28px rgba(0,0,0,.22);
      --radius-xl:24px;
      --radius-lg:20px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1180px;
      --gap:24px;
      --gap-sm:14px;
      --header-h:78px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 12%, rgba(89,239,185,.10), transparent 24%),
        radial-gradient(circle at 84% 8%, rgba(242,173,86,.08), transparent 20%),
        radial-gradient(circle at 50% 0%, rgba(255,255,255,.03), transparent 26%),
        linear-gradient(180deg, #08100d 0%, #0a1210 42%, #08100d 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
      background-size:40px 40px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.52), rgba(0,0,0,.18) 38%, rgba(0,0,0,0));
      opacity:.42;
      z-index:0;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease, opacity .2s ease;
    }
    img{
      display:block;
      max-width:100%;
      height:auto;
    }
    button,input{
      font:inherit;
    }
    button{
      cursor:pointer;
    }
    :focus-visible{
      outline:2px solid rgba(89,239,185,.9);
      outline-offset:3px;
    }
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
      position:relative;
      z-index:1;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(14px);
      background:linear-gradient(180deg, rgba(6,12,10,.92), rgba(6,12,10,.76));
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      gap:18px;
      padding:12px 0;
    }
    .site-brand{
      display:flex;
      align-items:center;
      gap:12px;
      flex:0 0 auto;
      min-width:0;
    }
    .brand-mark{
      width:44px;
      height:44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(89,239,185,.18), rgba(242,173,86,.16));
      border:1px solid rgba(89,239,185,.22);
      color:var(--accent);
      font-weight:900;
      letter-spacing:.08em;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
      flex:0 0 auto;
    }
    .brand-copy{
      display:flex;
      flex-direction:column;
      min-width:0;
    }
    .brand-title{
      font-size:1.02rem;
      font-weight:800;
      line-height:1.1;
      letter-spacing:.01em;
      white-space:nowrap;
    }
    .brand-sub{
      color:var(--muted);
      font-size:.86rem;
      margin-top:3px;
      white-space:nowrap;
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      margin-left:auto;
      margin-right:10px;
    }
    .site-nav a{
      position:relative;
      padding:11px 14px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      font-weight:600;
      letter-spacing:.01em;
      background:transparent;
    }
    .site-nav a:hover{
      color:var(--text);
      border-color:rgba(89,239,185,.14);
      background:rgba(255,255,255,.03);
      transform:translateY(-1px);
    }
    .site-nav a.active{
      color:#07100d;
      background:linear-gradient(135deg, var(--accent), #7ef2ce);
      border-color:rgba(89,239,185,.34);
      box-shadow:0 10px 24px rgba(89,239,185,.18);
    }
    .nav-action{
      flex:0 0 auto;
      padding:12px 18px;
      border-radius:999px;
      background:linear-gradient(135deg, rgba(242,173,86,.96), rgba(244,143,59,.92));
      color:#1b1208;
      font-weight:800;
      box-shadow:0 12px 26px rgba(242,173,86,.18);
      border:1px solid rgba(255,255,255,.08);
    }
    .nav-action:hover{
      transform:translateY(-1px);
      box-shadow:0 16px 30px rgba(242,173,86,.24);
    }
    .hero{
      position:relative;
      padding:26px 0 24px;
    }
    .hero-shell{
      position:relative;
      border:1px solid rgba(255,255,255,.07);
      border-radius:28px;
      overflow:hidden;
      box-shadow:var(--shadow);
      background:
        linear-gradient(180deg, rgba(9,16,14,.42), rgba(9,16,14,.82)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .hero-shell::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(8,16,13,.90) 0%, rgba(8,16,13,.72) 40%, rgba(8,16,13,.45) 100%),
        radial-gradient(circle at 78% 24%, rgba(89,239,185,.18), transparent 26%),
        radial-gradient(circle at 88% 72%, rgba(242,173,86,.13), transparent 22%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);
      gap:26px;
      padding:34px;
      align-items:center;
      z-index:1;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      color:var(--muted);
      font-size:.92rem;
      margin-bottom:16px;
    }
    .breadcrumb a{
      color:var(--accent-3);
    }
    .breadcrumb span.sep{
      opacity:.55;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(89,239,185,.09);
      border:1px solid rgba(89,239,185,.16);
      color:#bdf8e3;
      font-size:.86rem;
      letter-spacing:.03em;
      margin-bottom:16px;
    }
    h1,h2,h3,p{
      margin:0;
    }
    .hero h1{
      font-size:clamp(2rem, 4vw, 3.6rem);
      line-height:1.08;
      letter-spacing:-.02em;
      font-weight:900;
      max-width:11em;
    }
    .hero p.lead{
      margin-top:18px;
      max-width:48rem;
      color:#d9e5e2;
      font-size:1.04rem;
      line-height:1.8;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      letter-spacing:.01em;
      transition:transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease, color .2s ease, opacity .2s ease;
      user-select:none;
    }
    .btn:hover{
      transform:translateY(-1px);
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--accent), #74efd0);
      color:#07110e;
      box-shadow:0 14px 30px rgba(89,239,185,.18);
      border-color:rgba(89,239,185,.25);
    }
    .btn-primary:hover{
      box-shadow:0 18px 34px rgba(89,239,185,.24);
    }
    .btn-secondary{
      background:rgba(255,255,255,.03);
      color:var(--text);
      border-color:rgba(255,255,255,.12);
    }
    .btn-secondary:hover{
      background:rgba(255,255,255,.06);
      border-color:rgba(89,239,185,.24);
      box-shadow:0 12px 24px rgba(0,0,0,.14);
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      color:var(--muted);
      font-size:.88rem;
    }
    .hero-visual{
      position:relative;
      min-height:360px;
      border-radius:24px;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(18,32,27,.82), rgba(10,16,13,.94));
      box-shadow:var(--shadow-soft);
    }
    .hero-visual img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.9;
      filter:saturate(.95) contrast(1.02);
    }
    .hero-info{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      display:grid;
      gap:12px;
      padding:18px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(10,16,13,.58), rgba(10,16,13,.88));
      border:1px solid rgba(255,255,255,.1);
      backdrop-filter:blur(8px);
    }
    .hero-info h2{
      font-size:1.05rem;
      font-weight:800;
      letter-spacing:.01em;
    }
    .hero-info ul{
      margin:0;
      padding-left:18px;
      color:#d6e2df;
    }
    .hero-info li + li{
      margin-top:6px;
    }
    .section{
      padding:34px 0;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:18px;
      margin-bottom:18px;
      flex-wrap:wrap;
    }
    .section-head h2{
      font-size:1.55rem;
      line-height:1.2;
      font-weight:900;
      letter-spacing:-.01em;
    }
    .section-head p{
      color:var(--muted);
      max-width:52rem;
    }
    .chip-row{
      display:flex;
      gap:10px;
      overflow-x:auto;
      padding-bottom:8px;
      scrollbar-width:thin;
    }
    .chip-row::-webkit-scrollbar{
      height:6px;
    }
    .chip-row::-webkit-scrollbar-thumb{
      background:rgba(255,255,255,.14);
      border-radius:999px;
    }
    .chip{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      color:#d5e0dd;
      font-size:.92rem;
    }
    .chip.active{
      background:rgba(89,239,185,.12);
      color:#defbf2;
      border-color:rgba(89,239,185,.24);
      box-shadow:inset 0 0 0 1px rgba(89,239,185,.06);
    }
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1.8fr) minmax(290px,.85fr);
      gap:22px;
      align-items:start;
    }
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:18px;
    }
    .entry-card{
      display:flex;
      flex-direction:column;
      min-height:100%;
      background:linear-gradient(180deg, rgba(18,32,27,.94), rgba(13,22,18,.98));
      border:1px solid rgba(255,255,255,.08);
      border-radius:22px;
      overflow:hidden;
      box-shadow:var(--shadow-soft);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .entry-card:hover{
      transform:translateY(-3px);
      border-color:rgba(89,239,185,.18);
      box-shadow:0 18px 34px rgba(0,0,0,.28);
    }
    .entry-media{
      position:relative;
      aspect-ratio:16 / 10;
      overflow:hidden;
    }
    .entry-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      transform:scale(1.01);
    }
    .entry-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 0%, rgba(8,16,13,.1) 52%, rgba(8,16,13,.42) 100%);
    }
    .entry-badge{
      position:absolute;
      left:14px;
      top:14px;
      z-index:1;
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 10px;
      border-radius:999px;
      background:rgba(8,16,13,.62);
      border:1px solid rgba(255,255,255,.12);
      color:#edf7f4;
      font-size:.82rem;
      backdrop-filter:blur(6px);
    }
    .entry-body{
      display:grid;
      gap:12px;
      padding:18px;
    }
    .entry-body h3{
      font-size:1.12rem;
      line-height:1.35;
      font-weight:850;
      letter-spacing:-.01em;
    }
    .entry-body p{
      color:var(--muted);
      font-size:.96rem;
      line-height:1.75;
    }
    .entry-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .mini-tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 10px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      color:#c8d5d2;
      font-size:.82rem;
    }
    .entry-action{
      margin-top:4px;
      align-self:flex-start;
      padding:10px 14px;
      border-radius:999px;
      background:rgba(89,239,185,.09);
      color:#d7fff2;
      border:1px solid rgba(89,239,185,.16);
      font-weight:800;
    }
    .entry-action:hover{
      background:rgba(89,239,185,.15);
      border-color:rgba(89,239,185,.25);
    }
    .side-stack{
      display:grid;
      gap:18px;
    }
    .info-card{
      background:linear-gradient(180deg, rgba(18,32,27,.94), rgba(11,19,16,.98));
      border:1px solid rgba(255,255,255,.08);
      border-radius:22px;
      padding:20px;
      box-shadow:var(--shadow-soft);
    }
    .info-card h3{
      font-size:1.08rem;
      line-height:1.4;
      font-weight:850;
      margin-bottom:12px;
    }
    .info-card p{
      color:var(--muted);
      font-size:.95rem;
      line-height:1.8;
    }
    .info-list{
      list-style:none;
      padding:0;
      margin:14px 0 0;
      display:grid;
      gap:10px;
    }
    .info-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#d9e5e2;
      font-size:.95rem;
      line-height:1.75;
    }
    .info-list li::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      margin-top:.55em;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow:0 0 0 4px rgba(89,239,185,.08);
      flex:0 0 auto;
    }
    .mini-search{
      display:grid;
      gap:12px;
      margin-top:14px;
    }
    .mini-search input{
      width:100%;
      min-height:48px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.03);
      color:var(--text);
      padding:0 14px;
    }
    .mini-search input::placeholder{
      color:#7d8d8a;
    }
    .mini-search .btn{
      width:100%;
    }
    .side-links{
      display:grid;
      gap:10px;
      margin-top:10px;
    }
    .side-link{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      padding:13px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      color:#dfe9e6;
    }
    .side-link:hover{
      border-color:rgba(89,239,185,.18);
      background:rgba(255,255,255,.05);
      transform:translateY(-1px);
    }
    .notice-bar{
      margin-top:18px;
      padding:16px 18px;
      border-radius:18px;
      background:linear-gradient(135deg, rgba(89,239,185,.10), rgba(242,173,86,.08));
      border:1px solid rgba(89,239,185,.18);
      color:#e8f4f1;
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
    }
    .notice-bar strong{
      color:#f8fff8;
    }
    .notice-bar span{
      color:#d4dfdc;
    }
    .faq-grid{
      display:grid;
      gap:14px;
    }
    details.faq-item{
      background:linear-gradient(180deg, rgba(18,32,27,.94), rgba(12,19,16,.98));
      border:1px solid rgba(255,255,255,.08);
      border-radius:18px;
      padding:0 18px;
      box-shadow:var(--shadow-soft);
    }
    details.faq-item[open]{
      border-color:rgba(89,239,185,.18);
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding:16px 0;
      font-weight:800;
      font-size:1rem;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary::after{
      content:"+";
      width:32px;
      height:32px;
      border-radius:999px;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      color:var(--accent);
      flex:0 0 auto;
      transition:transform .2s ease, background-color .2s ease;
    }
    details.faq-item[open] summary::after{
      content:"–";
      background:rgba(89,239,185,.10);
      transform:rotate(180deg);
    }
    .faq-body{
      padding:0 0 16px;
      color:var(--muted);
      line-height:1.85;
    }
    .cta-box{
      background:
        radial-gradient(circle at 18% 20%, rgba(89,239,185,.16), transparent 24%),
        radial-gradient(circle at 84% 10%, rgba(242,173,86,.12), transparent 20%),
        linear-gradient(180deg, rgba(18,32,27,.96), rgba(10,16,13,.98));
      border:1px solid rgba(255,255,255,.08);
      border-radius:28px;
      padding:28px;
      box-shadow:var(--shadow);
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:20px;
      flex-wrap:wrap;
    }
    .cta-box h2{
      font-size:1.5rem;
      line-height:1.25;
      font-weight:900;
      margin-top:8px;
    }
    .cta-box p{
      margin-top:10px;
      color:var(--muted);
      max-width:58rem;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      flex:0 0 auto;
    }
    .site-footer{
      margin-top:30px;
      padding:32px 0 20px;
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(8,16,13,.4), rgba(8,16,13,.96));
      position:relative;
      z-index:1;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.3fr) minmax(0,.9fr);
      gap:20px;
      align-items:start;
      padding-bottom:24px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .footer-title{
      font-size:1.04rem;
      font-weight:850;
      line-height:1.2;
    }
    .brand-sub{
      color:var(--muted);
    }
    .footer-desc{
      color:var(--muted);
      max-width:54rem;
      line-height:1.8;
      margin:0;
    }
    .footer-links{
      display:flex;
      justify-content:flex-end;
      flex-wrap:wrap;
      gap:10px;
      align-content:flex-start;
    }
    .footer-links a{
      padding:10px 14px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      color:#d6e2df;
    }
    .footer-links a:hover{
      background:rgba(89,239,185,.08);
      border-color:rgba(89,239,185,.18);
      color:#f3fbf8;
      transform:translateY(-1px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
      color:var(--muted-2);
      font-size:.92rem;
    }
    .subtle-line{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.10), transparent);
      margin:20px 0;
    }
    @media (max-width: 1080px){
      .hero-grid,
      .content-layout,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .hero-visual{
        min-height:320px;
      }
      .footer-links{
        justify-content:flex-start;
      }
    }
    @media (max-width: 820px){
      .header-inner{
        flex-wrap:wrap;
        gap:14px;
      }
      .site-nav{
        order:3;
        width:100%;
        margin:0;
        padding-top:2px;
      }
      .nav-action{
        margin-left:auto;
      }
      .hero-grid{
        padding:22px;
      }
      .entry-grid{
        grid-template-columns:1fr;
      }
      .section{
        padding:28px 0;
      }
      .section-head{
        align-items:flex-start;
      }
    }
    @media (max-width: 560px){
      .container{
        width:min(var(--container), calc(100% - 28px));
      }
      .hero{
        padding-top:18px;
      }
      .hero-grid{
        padding:18px;
      }
      .hero h1{
        max-width:none;
        font-size:clamp(1.8rem, 9vw, 2.6rem);
      }
      .site-brand{
        width:100%;
      }
      .nav-action{
        width:100%;
        justify-content:center;
      }
      .site-nav a{
        padding:10px 12px;
      }
      .cta-box{
        padding:20px;
        border-radius:22px;
      }
      .notice-bar{
        padding:14px 16px;
      }
      .entry-body,
      .info-card{
        padding:16px;
      }
      .footer-bottom{
        flex-direction:column;
      }
    }