/* roulang page: index */
:root {
      --primary: #7C3AED;
      --primary-2: #8B5CF6;
      --accent: #FB923C;
      --accent-2: #F97316;
      --mint: #10B981;
      --cream: #FFF7ED;
      --lavender: #FAF5FF;
      --paper: #FFFFFF;
      --soft: #F8FAFC;
      --ink: #1F2937;
      --text: #4B5563;
      --muted: #9CA3AF;
      --line: rgba(124, 58, 237, .16);
      --line-orange: rgba(251, 146, 60, .22);
      --shadow: 0 24px 70px rgba(124, 58, 237, .13);
      --shadow-orange: 0 18px 54px rgba(249, 115, 22, .13);
      --radius-xl: 32px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --container: 1220px;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 8% 8%, rgba(251, 146, 60, .18), transparent 28%),
        radial-gradient(circle at 90% 12%, rgba(124, 58, 237, .18), transparent 32%),
        linear-gradient(180deg, #FFF7ED 0%, #FAF5FF 44%, #F8FAFC 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    ::selection {
      background: rgba(124, 58, 237, .18);
      color: var(--ink);
    }

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

    .skip-link {
      position: absolute;
      left: 16px;
      top: -60px;
      z-index: 999;
      padding: 10px 16px;
      border-radius: 999px;
      background: var(--primary);
      color: #fff;
      box-shadow: var(--shadow);
    }

    .skip-link:focus {
      top: 12px;
      outline: 3px solid rgba(251, 146, 60, .35);
    }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 80;
      border-bottom: 1px solid rgba(124, 58, 237, .12);
      background: rgba(255, 247, 237, .82);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .nav-wrap {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--ink);
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      flex: 0 0 auto;
      border-radius: 15px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #fff;
      box-shadow: 0 14px 32px rgba(124, 58, 237, .25);
      position: relative;
      overflow: hidden;
    }

    .brand-mark:after {
      content: "";
      position: absolute;
      width: 24px;
      height: 24px;
      right: -6px;
      bottom: -4px;
      border-radius: 999px;
      background: rgba(255,255,255,.22);
    }

    .brand-text {
      font-size: 18px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .desktop-nav {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 7px;
      border: 1px solid rgba(124, 58, 237, .12);
      border-radius: 999px;
      background: rgba(255,255,255,.62);
    }

    .desktop-nav a {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      color: var(--text);
    }

    .desktop-nav a:hover,
    .desktop-nav a.active {
      color: var(--primary);
      background: rgba(124, 58, 237, .09);
    }

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

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid rgba(124, 58, 237, .16);
      border-radius: 999px;
      background: rgba(255,255,255,.8);
      color: var(--primary);
      align-items: center;
      justify-content: center;
    }

    .mobile-panel {
      display: none;
      padding: 0 0 16px;
    }

    .mobile-panel.open {
      display: block;
    }

    .mobile-panel-inner {
      border: 1px solid rgba(124, 58, 237, .14);
      border-radius: 24px;
      background: rgba(255,255,255,.9);
      padding: 10px;
      box-shadow: var(--shadow);
    }

    .mobile-panel a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 13px 14px;
      border-radius: 16px;
      font-weight: 800;
      color: var(--text);
    }

    .mobile-panel a:hover {
      background: rgba(124, 58, 237, .08);
      color: var(--primary);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 20px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 900;
      letter-spacing: -0.01em;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      user-select: none;
      white-space: nowrap;
    }

    .btn:focus-visible,
    .faq-trigger:focus-visible,
    input:focus,
    textarea:focus {
      outline: none;
      box-shadow: 0 0 0 4px rgba(124, 58, 237, .18), 0 0 0 1px rgba(124, 58, 237, .45);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 48%, var(--accent) 100%);
      box-shadow: 0 18px 38px rgba(124, 58, 237, .22);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 24px 48px rgba(124, 58, 237, .3);
    }

    .btn-secondary {
      color: var(--primary);
      border-color: rgba(124, 58, 237, .18);
      background: rgba(255,255,255,.86);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: rgba(250, 245, 255, .98);
      border-color: rgba(124, 58, 237, .34);
    }

    .section {
      padding: 96px 0;
      position: relative;
    }

    .section-sm {
      padding: 72px 0;
    }

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

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 13px;
      border-radius: 999px;
      color: var(--primary);
      background: rgba(124, 58, 237, .09);
      border: 1px solid rgba(124, 58, 237, .14);
      font-size: 13px;
      font-weight: 900;
    }

    .section-title {
      margin: 12px 0 0;
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.16;
      letter-spacing: -0.04em;
      font-weight: 950;
      color: var(--ink);
    }

    .section-desc {
      max-width: 620px;
      margin: 14px 0 0;
      color: var(--text);
      font-size: 16px;
      line-height: 1.9;
    }

    .card {
      border: 1px solid rgba(124, 58, 237, .13);
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.78);
      box-shadow: 0 12px 38px rgba(31, 41, 55, .06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .card:hover {
      transform: translateY(-5px);
      border-color: rgba(124, 58, 237, .28);
      box-shadow: var(--shadow);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 11px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 900;
      line-height: 1;
      white-space: nowrap;
    }

    .badge-purple {
      color: #6D28D9;
      background: rgba(124, 58, 237, .11);
      border: 1px solid rgba(124, 58, 237, .16);
    }

    .badge-orange {
      color: #C2410C;
      background: rgba(251, 146, 60, .14);
      border: 1px solid rgba(251, 146, 60, .24);
    }

    .badge-green {
      color: #047857;
      background: rgba(16, 185, 129, .12);
      border: 1px solid rgba(16, 185, 129, .22);
    }

    .hero {
      padding: 54px 0 28px;
    }

    .hero-stage {
      position: relative;
      min-height: 610px;
      border: 1px solid rgba(124, 58, 237, .13);
      border-radius: 42px;
      overflow: hidden;
      background:
        radial-gradient(circle at 18% 16%, rgba(251, 146, 60, .18), transparent 31%),
        radial-gradient(circle at 82% 20%, rgba(124, 58, 237, .16), transparent 30%),
        linear-gradient(135deg, rgba(255,255,255,.9) 0%, rgba(250,245,255,.8) 45%, rgba(255,247,237,.86) 100%);
      box-shadow: var(--shadow);
    }

    .hero-stage:before {
      content: "";
      position: absolute;
      inset: 20px;
      border-radius: 32px;
      border: 1px dashed rgba(124, 58, 237, .16);
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.18fr .82fr;
      gap: 26px;
      padding: clamp(24px, 4vw, 46px);
      align-items: stretch;
    }

    .hero-copy {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 26px;
    }

    .hero h1 {
      margin: 16px 0 0;
      max-width: 760px;
      font-size: clamp(36px, 6vw, 66px);
      line-height: .98;
      letter-spacing: -0.06em;
      font-weight: 950;
      color: var(--ink);
    }

    .hero-subtitle {
      max-width: 710px;
      margin: 22px 0 0;
      color: var(--text);
      font-size: clamp(16px, 2vw, 18px);
      line-height: 1.95;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      margin-top: 28px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 28px;
    }

    .metric {
      padding: 18px 18px 16px;
      border-radius: 24px;
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(124, 58, 237, .12);
      box-shadow: 0 10px 30px rgba(31, 41, 55, .05);
    }

    .metric strong {
      display: block;
      font-size: 24px;
      line-height: 1;
      color: var(--primary);
      font-weight: 950;
    }

    .metric span {
      display: block;
      margin-top: 8px;
      font-size: 13px;
      color: var(--text);
      line-height: 1.45;
    }

    .lead-panel {
      align-self: stretch;
      display: grid;
      grid-template-rows: auto 1fr;
      gap: 16px;
    }

    .guide-cover {
      position: relative;
      overflow: hidden;
      border-radius: 34px;
      padding: 24px;
      min-height: 300px;
      color: #fff;
      background:
        radial-gradient(circle at 75% 18%, rgba(255,255,255,.24), transparent 25%),
        linear-gradient(145deg, #7C3AED 0%, #8B5CF6 45%, #FB923C 100%);
      box-shadow: 0 26px 60px rgba(124, 58, 237, .28);
    }

    .guide-cover:before,
    .guide-cover:after {
      content: "";
      position: absolute;
      border-radius: 999px;
      background: rgba(255,255,255,.16);
    }

    .guide-cover:before {
      width: 140px;
      height: 140px;
      right: -48px;
      top: -36px;
    }

    .guide-cover:after {
      width: 82px;
      height: 82px;
      left: 28px;
      bottom: 34px;
    }

    .cover-content {
      position: relative;
      z-index: 2;
      min-height: 252px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .cover-title {
      margin: 18px 0 0;
      font-size: 28px;
      line-height: 1.2;
      font-weight: 950;
      letter-spacing: -0.04em;
    }

    .cover-list {
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 9px;
      color: rgba(255,255,255,.88);
      font-size: 14px;
    }

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

    .cover-list li:before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: #fff;
      box-shadow: 0 0 0 4px rgba(255,255,255,.16);
      flex: 0 0 auto;
    }

    .lead-form {
      border-radius: 30px;
      padding: 18px;
      border: 1px solid rgba(124, 58, 237, .14);
      background: rgba(255,255,255,.82);
      box-shadow: 0 16px 36px rgba(31, 41, 55, .06);
    }

    .lead-form label {
      display: block;
      margin-bottom: 7px;
      font-size: 13px;
      color: var(--text);
      font-weight: 800;
    }

    .lead-form input {
      width: 100%;
      height: 46px;
      border-radius: 18px;
      border: 1px solid rgba(124, 58, 237, .15);
      background: #fff;
      padding: 0 14px;
      color: var(--ink);
    }

    .lead-form .form-row {
      display: grid;
      gap: 10px;
    }

    .lead-note {
      margin-top: 10px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
    }

    .float-chip {
      position: absolute;
      z-index: 3;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 14px;
      border-radius: 999px;
      background: rgba(255,255,255,.86);
      border: 1px solid rgba(124, 58, 237, .14);
      box-shadow: 0 16px 40px rgba(31, 41, 55, .08);
      font-size: 13px;
      font-weight: 900;
      color: var(--primary);
      animation: floaty 5.6s ease-in-out infinite;
    }

    .float-chip.one {
      left: 44%;
      top: 28px;
    }

    .float-chip.two {
      right: 32px;
      bottom: 34px;
      color: #C2410C;
      animation-delay: -1.5s;
    }

    .pill-strip-wrap {
      padding: 18px 0 18px;
      position: relative;
    }

    .pill-strip {
      display: flex;
      align-items: center;
      gap: 10px;
      overflow-x: auto;
      padding: 6px 3px 14px;
      scrollbar-width: thin;
      scrollbar-color: rgba(124, 58, 237, .35) transparent;
    }

    .pill-strip::-webkit-scrollbar {
      height: 6px;
    }

    .pill-strip::-webkit-scrollbar-thumb {
      background: rgba(124, 58, 237, .28);
      border-radius: 999px;
    }

    .pill {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 42px;
      padding: 0 18px;
      border-radius: 999px;
      border: 1px solid rgba(124, 58, 237, .13);
      background: rgba(255,255,255,.85);
      color: var(--text);
      font-weight: 900;
      font-size: 14px;
      box-shadow: 0 10px 24px rgba(31, 41, 55, .04);
    }

    .pill:hover {
      color: var(--primary);
      transform: translateY(-2px);
      border-color: rgba(124, 58, 237, .28);
    }

    .pill.active {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 16px 32px rgba(124, 58, 237, .24);
    }

    .feature-layout {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 22px;
      align-items: stretch;
    }

    .feature-main {
      position: relative;
      overflow: hidden;
      padding: 34px;
      background:
        radial-gradient(circle at 88% 12%, rgba(251, 146, 60, .18), transparent 28%),
        rgba(255,255,255,.82);
    }

    .feature-main h3,
    .feature-mini h3,
    .reward-card h3,
    .case-card h3,
    .price-card h3 {
      margin: 16px 0 0;
      font-size: 22px;
      line-height: 1.3;
      font-weight: 950;
      letter-spacing: -0.02em;
    }

    .feature-main p,
    .feature-mini p,
    .reward-card p,
    .case-card p,
    .price-card p {
      margin: 10px 0 0;
      color: var(--text);
      line-height: 1.85;
      font-size: 15px;
    }

    .feature-icon {
      width: 56px;
      height: 56px;
      display: grid;
      place-items: center;
      border-radius: 20px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 16px 30px rgba(124, 58, 237, .22);
    }

    .progress-bar {
      height: 13px;
      border-radius: 999px;
      background: rgba(124, 58, 237, .12);
      overflow: hidden;
    }

    .progress-bar > span {
      display: block;
      height: 100%;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .feature-side {
      display: grid;
      gap: 22px;
    }

    .feature-mini {
      padding: 26px;
    }

    .feature-tip {
      grid-column: 1 / -1;
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 18px;
      padding: 20px 24px;
      border-radius: 28px;
      border: 1px solid rgba(16, 185, 129, .2);
      background: linear-gradient(135deg, rgba(236, 253, 245, .9), rgba(255,255,255,.8));
      box-shadow: 0 14px 36px rgba(16, 185, 129, .09);
    }

    .feature-tip strong {
      display: block;
      font-size: 16px;
      font-weight: 950;
      color: var(--ink);
    }

    .feature-tip span {
      display: block;
      margin-top: 2px;
      color: var(--text);
      font-size: 14px;
    }

    .reward-grid {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 22px;
      align-items: stretch;
    }

    .reward-card {
      padding: 26px;
      position: relative;
      overflow: hidden;
    }

    .reward-card.highlight {
      background:
        radial-gradient(circle at 88% 14%, rgba(251, 146, 60, .2), transparent 26%),
        linear-gradient(145deg, rgba(255,255,255,.9), rgba(250,245,255,.86));
    }

    .reward-list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

    .mini-pack {
      padding: 20px;
      border-radius: 24px;
      border: 1px solid rgba(124, 58, 237, .12);
      background: rgba(255,255,255,.72);
    }

    .mini-pack strong {
      display: block;
      margin-top: 12px;
      font-size: 17px;
      font-weight: 950;
    }

    .mini-pack span {
      display: block;
      margin-top: 6px;
      color: var(--text);
      font-size: 14px;
      line-height: 1.7;
    }

    .timeline {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
      margin-top: 22px;
    }

    .timeline:before {
      content: "";
      position: absolute;
      left: 30px;
      right: 30px;
      top: 31px;
      height: 3px;
      border-radius: 999px;
      background: linear-gradient(90deg, rgba(124,58,237,.22), rgba(251,146,60,.26));
    }

    .step-card {
      position: relative;
      z-index: 2;
      padding: 22px;
      border-radius: 28px;
      border: 1px solid rgba(124, 58, 237, .13);
      background: rgba(255,255,255,.82);
      box-shadow: 0 12px 34px rgba(31, 41, 55, .05);
    }

    .step-num {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      font-weight: 950;
      box-shadow: 0 14px 28px rgba(124, 58, 237, .2);
    }

    .step-card h3 {
      margin: 16px 0 0;
      font-size: 18px;
      font-weight: 950;
    }

    .step-card p {
      margin: 8px 0 0;
      color: var(--text);
      font-size: 14px;
      line-height: 1.8;
    }

    .case-map {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 18px;
      align-items: stretch;
    }

    .case-card {
      padding: 26px;
      min-height: 250px;
    }

    .case-card:nth-child(1) {
      grid-column: span 5;
      transform: translateY(12px);
    }

    .case-card:nth-child(2) {
      grid-column: span 4;
    }

    .case-card:nth-child(3) {
      grid-column: span 3;
      transform: translateY(28px);
    }

    .case-card:nth-child(4) {
      grid-column: span 7;
    }

    .case-card:nth-child(5) {
      grid-column: span 5;
      transform: translateY(-8px);
    }

    .case-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }

    .updates-shell {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 22px;
      align-items: start;
    }

    .latest-feature {
      padding: 30px;
      position: sticky;
      top: 98px;
      overflow: hidden;
      background:
        radial-gradient(circle at 90% 8%, rgba(251, 146, 60, .19), transparent 24%),
        rgba(255,255,255,.84);
    }

    .latest-feature h3 {
      margin: 18px 0 0;
      font-size: 26px;
      line-height: 1.25;
      font-weight: 950;
      letter-spacing: -0.03em;
    }

    .latest-feature p {
      margin: 12px 0 0;
      color: var(--text);
      line-height: 1.9;
    }

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

    .news-item {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 18px;
      padding: 20px;
      border-radius: 26px;
      border: 1px solid rgba(124, 58, 237, .12);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 28px rgba(31, 41, 55, .045);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .news-item:hover {
      transform: translateY(-4px);
      border-color: rgba(124, 58, 237, .28);
      box-shadow: var(--shadow);
    }

    .news-item h3 {
      margin: 8px 0 0;
      font-size: 18px;
      line-height: 1.35;
      font-weight: 950;
    }

    .news-item p {
      margin: 8px 0 0;
      color: var(--text);
      font-size: 14px;
      line-height: 1.75;
    }

    .news-arrow {
      align-self: center;
      width: 42px;
      height: 42px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      color: var(--primary);
      background: rgba(124, 58, 237, .09);
    }

    .news-item:hover .news-arrow {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
    }

    .empty-state {
      padding: 36px;
      border-radius: 32px;
      border: 1px dashed rgba(124, 58, 237, .24);
      background:
        radial-gradient(circle at 18% 22%, rgba(251,146,60,.14), transparent 24%),
        rgba(255,255,255,.78);
      text-align: center;
      color: var(--text);
    }

    .empty-icon {
      width: 72px;
      height: 72px;
      margin: 0 auto 14px;
      display: grid;
      place-items: center;
      border-radius: 26px;
      background: rgba(124, 58, 237, .09);
      color: var(--primary);
    }

    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
      align-items: stretch;
    }

    .price-card {
      padding: 28px;
      position: relative;
    }

    .price-card.recommended {
      transform: translateY(-14px);
      border-color: rgba(251, 146, 60, .35);
      box-shadow: var(--shadow-orange);
      background:
        radial-gradient(circle at 86% 10%, rgba(251, 146, 60, .18), transparent 24%),
        rgba(255,255,255,.88);
    }

    .price {
      margin-top: 20px;
      display: flex;
      align-items: baseline;
      gap: 8px;
      color: var(--ink);
    }

    .price strong {
      font-size: 34px;
      line-height: 1;
      font-weight: 950;
      letter-spacing: -0.04em;
    }

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

    .check-list {
      margin: 22px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--text);
      font-size: 14px;
      line-height: 1.65;
    }

    .check-list li:before {
      content: "✓";
      flex: 0 0 auto;
      width: 22px;
      height: 22px;
      display: grid;
      place-items: center;
      border-radius: 999px;
      color: #fff;
      background: var(--mint);
      font-size: 12px;
      font-weight: 950;
      margin-top: 2px;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 28px;
      align-items: start;
    }

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

    .faq-item {
      border: 1px solid rgba(124, 58, 237, .13);
      border-radius: 26px;
      background: rgba(255,255,255,.76);
      overflow: hidden;
      box-shadow: 0 10px 28px rgba(31, 41, 55, .045);
    }

    .faq-trigger {
      width: 100%;
      padding: 20px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      border: 0;
      background: transparent;
      color: var(--ink);
      font-weight: 950;
      text-align: left;
    }

    .faq-icon {
      width: 32px;
      height: 32px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 999px;
      color: var(--primary);
      background: rgba(124, 58, 237, .09);
      transition: transform .2s ease, background .2s ease, color .2s ease;
    }

       .faq-item.open {
      background: rgba(250, 245, 255, .86);
      border-color: rgba(124, 58, 237, .28);
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
    }

    .faq-answer {
      display: none;
      padding: 0 22px 22px;
      color: var(--text);
      line-height: 1.9;
      font-size: 15px;
    }

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

    .cta-panel {
      position: relative;
      overflow: hidden;
      border-radius: 40px;
      padding: clamp(30px, 5vw, 54px);
      color: #fff;
      background:
        radial-gradient(circle at 15% 20%, rgba(255,255,255,.18), transparent 24%),
        radial-gradient(circle at 90% 18%, rgba(251, 146, 60, .36), transparent 28%),
        linear-gradient(135deg, #5B21B6 0%, #7C3AED 48%, #FB923C 100%);
      box-shadow: 0 28px 80px rgba(124, 58, 237, .26);
    }

    .cta-panel:before,
    .cta-panel:after {
      content: "";
      position: absolute;
      border-radius: 999px;
      background: rgba(255,255,255,.13);
    }

    .cta-panel:before {
      width: 180px;
      height: 180px;
      right: -58px;
      top: -72px;
    }

    .cta-panel:after {
      width: 92px;
      height: 92px;
      left: 7%;
      bottom: -30px;
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
    }

    .cta-panel h2 {
      margin: 12px 0 0;
      font-size: clamp(30px, 4vw, 46px);
      line-height: 1.12;
      font-weight: 950;
      letter-spacing: -0.04em;
    }

    .cta-panel p {
      max-width: 720px;
      margin: 16px 0 0;
      color: rgba(255,255,255,.86);
      line-height: 1.9;
    }

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

    .cta-panel .btn-secondary {
      background: rgba(255,255,255,.92);
      border-color: rgba(255,255,255,.44);
    }

    .footer {
      padding: 58px 0 26px;
      background:
        radial-gradient(circle at 12% 0%, rgba(251,146,60,.16), transparent 26%),
        linear-gradient(180deg, #241233 0%, #161022 100%);
      color: rgba(255,255,255,.82);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 32px;
      align-items: start;
    }

    .footer .brand {
      color: #fff;
    }

    .footer p {
      margin: 16px 0 0;
      max-width: 470px;
      color: rgba(255,255,255,.68);
      line-height: 1.9;
      font-size: 14px;
    }

    .footer h3 {
      margin: 0 0 14px;
      color: #fff;
      font-size: 16px;
      font-weight: 950;
    }

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

    .footer-links a {
      color: rgba(255,255,255,.68);
      font-size: 14px;
    }

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

    .footer-bottom {
      margin-top: 38px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.12);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: rgba(255,255,255,.56);
      font-size: 13px;
    }

    .soft-divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(124,58,237,.18), transparent);
    }

    @keyframes floaty {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-10px); }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *:before, *:after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
      }
    }

    @media (max-width: 1024px) {
      .desktop-nav {
        display: none;
      }

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

      .hero-grid,
      .feature-layout,
      .reward-grid,
      .updates-shell,
      .faq-wrap {
        grid-template-columns: 1fr;
      }

      .latest-feature {
        position: relative;
        top: auto;
      }

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

      .timeline:before {
        display: none;
      }

      .case-card:nth-child(n) {
        grid-column: span 6;
        transform: none;
      }

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

      .price-card.recommended {
        transform: none;
      }

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

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

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

    @media (max-width: 768px) {
      .site-container {
        width: min(calc(100% - 32px), var(--container));
      }

      .nav-wrap {
        height: 68px;
      }

      .brand-text {
        max-width: 190px;
        font-size: 16px;
      }

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

      .hero {
        padding-top: 34px;
      }

      .hero-stage {
        min-height: auto;
        border-radius: 32px;
      }

      .hero-stage:before {
        inset: 12px;
        border-radius: 24px;
      }

      .hero-grid {
        padding: 22px;
      }

      .hero h1 {
        font-size: clamp(34px, 12vw, 42px);
        line-height: 1.06;
      }

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

      .float-chip {
        display: none;
      }

      .section {
        padding: 68px 0;
      }

      .section-sm {
        padding: 56px 0;
      }

      .section-head {
        display: block;
      }

      .feature-main,
      .feature-mini,
      .reward-card,
      .case-card,
      .price-card,
      .latest-feature {
        padding: 22px;
        border-radius: 26px;
      }

      .feature-tip {
        grid-template-columns: 1fr;
      }

      .reward-list,
      .timeline,
      .price-grid {
        grid-template-columns: 1fr;
      }

      .case-map {
        grid-template-columns: 1fr;
      }

      .case-card:nth-child(n) {
        grid-column: auto;
      }

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

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

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

      .footer-bottom {
        display: block;
      }

      .footer-bottom span {
        display: block;
        margin-top: 8px;
      }
    }

    @media (max-width: 520px) {
      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 14px;
      }

      .brand-text {
        max-width: 160px;
      }

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

      .btn {
        width: 100%;
      }

      .guide-cover {
        min-height: 270px;
        border-radius: 26px;
      }

      .cover-title {
        font-size: 24px;
      }

      .pill {
        min-height: 40px;
        padding: 0 15px;
        font-size: 13px;
      }

      .cta-panel {
        border-radius: 30px;
      }
    }

/* roulang page: article */
:root {
      --primary: #7C3AED;
      --primary-2: #8B5CF6;
      --accent: #FB923C;
      --accent-2: #F97316;
      --mint: #10B981;
      --cream: #FFF7ED;
      --lavender: #FAF5FF;
      --paper: #FFFFFF;
      --soft: #F8FAFC;
      --ink: #1F2937;
      --text: #4B5563;
      --muted: #9CA3AF;
      --line: rgba(124, 58, 237, .16);
      --line-orange: rgba(251, 146, 60, .22);
      --shadow: 0 24px 70px rgba(124, 58, 237, .13);
      --shadow-orange: 0 18px 54px rgba(249, 115, 22, .13);
      --radius-xl: 32px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --container: 1220px;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 8% 8%, rgba(251, 146, 60, .18), transparent 28%),
        radial-gradient(circle at 90% 12%, rgba(124, 58, 237, .18), transparent 32%),
        linear-gradient(180deg, #FFF7ED 0%, #FAF5FF 44%, #F8FAFC 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    ::selection {
      background: rgba(124, 58, 237, .2);
      color: var(--ink);
    }

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

    .topbar {
      position: sticky;
      top: 0;
      z-index: 80;
      border-bottom: 1px solid rgba(124, 58, 237, .12);
      background: rgba(255, 247, 237, .82);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .nav-wrap {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--ink);
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      flex: 0 0 auto;
      border-radius: 15px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #fff;
      box-shadow: 0 14px 32px rgba(124, 58, 237, .25);
      position: relative;
      overflow: hidden;
    }

    .brand-mark:after {
      content: "";
      position: absolute;
      width: 24px;
      height: 24px;
      right: -6px;
      bottom: -4px;
      border-radius: 999px;
      background: rgba(255,255,255,.22);
    }

    .brand-text {
      font-size: 18px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .desktop-nav {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 7px;
      border: 1px solid rgba(124, 58, 237, .12);
      border-radius: 999px;
      background: rgba(255,255,255,.62);
    }

    .desktop-nav a {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      color: var(--text);
    }

    .desktop-nav a:hover,
    .desktop-nav a.active {
      color: var(--primary);
      background: rgba(124, 58, 237, .09);
    }

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

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid rgba(124, 58, 237, .16);
      border-radius: 999px;
      background: rgba(255,255,255,.8);
      color: var(--primary);
      align-items: center;
      justify-content: center;
    }

    .mobile-panel {
      display: none;
      padding: 0 0 16px;
    }

    .mobile-panel.open {
      display: block;
    }

    .mobile-panel-inner {
      border: 1px solid rgba(124, 58, 237, .14);
      border-radius: 24px;
      background: rgba(255,255,255,.9);
      padding: 10px;
      box-shadow: var(--shadow);
    }

    .mobile-panel a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 13px 14px;
      border-radius: 16px;
      font-weight: 800;
      color: var(--text);
    }

    .mobile-panel a:hover {
      background: rgba(124, 58, 237, .08);
      color: var(--primary);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 20px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 900;
      letter-spacing: -0.01em;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      user-select: none;
      white-space: nowrap;
    }

    .btn:focus-visible,
    .faq-trigger:focus-visible,
    input:focus,
    textarea:focus {
      outline: none;
      box-shadow: 0 0 0 4px rgba(124, 58, 237, .18), 0 0 0 1px rgba(124, 58, 237, .45);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 48%, var(--accent) 100%);
      box-shadow: 0 18px 38px rgba(124, 58, 237, .22);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 24px 48px rgba(124, 58, 237, .3);
    }

    .btn-secondary {
      color: var(--primary);
      border-color: rgba(124, 58, 237, .18);
      background: rgba(255,255,255,.86);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: rgba(250, 245, 255, .98);
      border-color: rgba(124, 58, 237, .34);
    }

    .section {
      padding: 96px 0;
      position: relative;
    }

    .section-sm {
      padding: 72px 0;
    }

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

    .section-kicker,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 13px;
      border-radius: 999px;
      color: var(--primary);
      background: rgba(124, 58, 237, .09);
      border: 1px solid rgba(124, 58, 237, .14);
      font-size: 13px;
      font-weight: 900;
    }

    .badge-orange {
      color: #C2410C;
      background: rgba(251, 146, 60, .14);
      border-color: rgba(251, 146, 60, .22);
    }

    .badge-green {
      color: #047857;
      background: rgba(16, 185, 129, .12);
      border-color: rgba(16, 185, 129, .2);
    }

    .section-title {
      margin: 12px 0 0;
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.16;
      letter-spacing: -0.04em;
      font-weight: 950;
      color: var(--ink);
    }

    .section-desc {
      max-width: 680px;
      margin: 14px 0 0;
      color: var(--text);
      font-size: 16px;
      line-height: 1.85;
    }

    .card {
      border: 1px solid rgba(124, 58, 237, .13);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.78);
      box-shadow: 0 16px 44px rgba(124, 58, 237, .08);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .card:hover {
      transform: translateY(-4px);
      border-color: rgba(124, 58, 237, .26);
      box-shadow: var(--shadow);
    }

    .article-hero {
      padding: 54px 0 34px;
      position: relative;
    }

    .article-hero:before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 76% 28%, rgba(251, 146, 60, .14), transparent 24%),
        radial-gradient(circle at 26% 16%, rgba(124, 58, 237, .12), transparent 22%);
      pointer-events: none;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 9px;
      flex-wrap: wrap;
      margin-bottom: 24px;
      position: relative;
      z-index: 1;
    }

    .crumb {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 34px;
      padding: 0 13px;
      border: 1px solid rgba(124, 58, 237, .14);
      border-radius: 999px;
      background: rgba(255,255,255,.7);
      color: var(--text);
      font-size: 13px;
      font-weight: 850;
    }

    .crumb:hover {
      color: var(--primary);
      background: rgba(255,255,255,.95);
      transform: translateY(-1px);
    }

    .article-kv {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 32px;
      align-items: stretch;
    }

    .article-title-card {
      padding: clamp(26px, 4vw, 46px);
      border-radius: 38px;
      background: rgba(255,255,255,.76);
      border: 1px solid rgba(124, 58, 237, .14);
      box-shadow: var(--shadow);
      min-width: 0;
    }

    .article-title-card h1 {
      margin: 18px 0 18px;
      font-size: clamp(34px, 5vw, 60px);
      line-height: 1.08;
      letter-spacing: -0.055em;
      font-weight: 950;
      color: var(--ink);
      word-break: break-word;
    }

    .article-summary {
      margin: 0;
      color: var(--text);
      font-size: 17px;
      line-height: 1.9;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .meta-chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 36px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(250, 245, 255, .92);
      border: 1px solid rgba(124, 58, 237, .13);
      color: var(--text);
      font-size: 13px;
      font-weight: 800;
    }

    .dp-cover {
      min-height: 420px;
      border-radius: 40px;
      position: relative;
      overflow: hidden;
      transform: rotate(1.2deg);
      background:
        linear-gradient(135deg, rgba(124, 58, 237, .95), rgba(139, 92, 246, .82) 48%, rgba(251, 146, 60, .88)),
        radial-gradient(circle at 18% 20%, rgba(255,255,255,.28), transparent 18%),
        radial-gradient(circle at 78% 72%, rgba(255,255,255,.24), transparent 22%);
      box-shadow: 0 30px 90px rgba(124, 58, 237, .22);
    }

    .dp-cover-inner {
      position: absolute;
      inset: 26px;
      transform: rotate(-1.2deg);
      border-radius: 32px;
      background: rgba(255,255,255,.16);
      border: 1px solid rgba(255,255,255,.3);
      backdrop-filter: blur(8px);
      padding: 28px;
      color: #fff;
    }

    .cover-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 26px;
    }

    .cover-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: #fff;
      box-shadow: 20px 0 rgba(255,255,255,.55), 40px 0 rgba(255,255,255,.32);
    }

    .cover-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.18);
      font-size: 13px;
      font-weight: 900;
    }

    .play-orbit {
      position: relative;
      display: grid;
      place-items: center;
      width: min(82%, 420px);
      aspect-ratio: 1;
      margin: 2px auto 0;
      border-radius: 999px;
      border: 1px dashed rgba(255,255,255,.42);
    }

    .play-orbit:before,
    .play-orbit:after {
      content: "";
      position: absolute;
      border-radius: 999px;
      background: rgba(255,255,255,.16);
    }

    .play-orbit:before {
      width: 62%;
      height: 62%;
    }

    .play-orbit:after {
      width: 16px;
      height: 16px;
      right: 11%;
      top: 22%;
      box-shadow: -220px 150px rgba(255,255,255,.22), -90px -60px rgba(255,255,255,.18);
    }

    .play-button {
      width: 118px;
      height: 118px;
      border-radius: 36px;
      display: grid;
      place-items: center;
      color: var(--primary);
      background: rgba(255,255,255,.92);
      box-shadow: 0 20px 50px rgba(31, 41, 55, .16);
      position: relative;
      z-index: 2;
    }

    .cover-note {
      position: absolute;
      left: 28px;
      right: 28px;
      bottom: 28px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .mini-status {
      padding: 13px 14px;
      border-radius: 20px;
      background: rgba(255,255,255,.18);
      border: 1px solid rgba(255,255,255,.22);
    }

    .mini-status strong {
      display: block;
      font-size: 14px;
      line-height: 1.35;
    }

    .mini-status span {
      display: block;
      margin-top: 2px;
      font-size: 12px;
      color: rgba(255,255,255,.82);
    }

    .pill-nav-wrap {
      padding: 12px 0 36px;
      position: relative;
      z-index: 2;
    }

    .pill-nav {
      display: flex;
      gap: 12px;
      overflow-x: auto;
      padding: 10px;
      border: 1px solid rgba(124, 58, 237, .13);
      border-radius: 999px;
      background: rgba(255,255,255,.66);
      box-shadow: 0 16px 42px rgba(124, 58, 237, .08);
      scrollbar-width: none;
    }

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

    .pill-nav a {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 42px;
      padding: 0 18px;
      border-radius: 999px;
      border: 1px solid rgba(124, 58, 237, .12);
      background: rgba(255,255,255,.9);
      color: var(--text);
      font-weight: 900;
      font-size: 14px;
    }

    .pill-nav a.active,
    .pill-nav a:hover {
      color: #fff;
      border-color: transparent;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 13px 28px rgba(124, 58, 237, .22);
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 820px) 320px;
      gap: 34px;
      align-items: start;
    }

    .article-shell {
      padding: clamp(24px, 4vw, 42px);
      border-radius: 34px;
      background: rgba(255,255,255,.84);
      border: 1px solid rgba(124, 58, 237, .13);
      box-shadow: 0 22px 58px rgba(124, 58, 237, .09);
      min-width: 0;
    }

    .article-content {
      color: var(--text);
      font-size: 17px;
      line-height: 1.9;
      word-break: break-word;
    }

    .article-content > *:first-child {
      margin-top: 0;
    }

    .article-content p {
      margin: 1.05em 0;
    }

    .article-content h2 {
      position: relative;
      margin: 2.1em 0 .85em;
      padding-left: 18px;
      font-size: clamp(24px, 3vw, 32px);
      line-height: 1.25;
      letter-spacing: -0.03em;
      color: var(--ink);
      font-weight: 950;
    }

    .article-content h2:before {
      content: "";
      position: absolute;
      left: 0;
      top: .18em;
      width: 6px;
      height: 1.1em;
      border-radius: 999px;
      background: linear-gradient(180deg, var(--primary), var(--accent));
    }

    .article-content h3 {
      margin: 1.8em 0 .7em;
      font-size: 22px;
      line-height: 1.35;
      color: var(--ink);
      font-weight: 920;
    }

    .article-content h4 {
      margin: 1.6em 0 .55em;
      font-size: 19px;
      color: var(--ink);
      font-weight: 900;
    }

    .article-content a {
      color: var(--primary);
      font-weight: 900;
      border-bottom: 1px solid rgba(124, 58, 237, .22);
    }

    .article-content a:hover {
      color: var(--accent-2);
      border-color: rgba(249, 115, 22, .28);
    }

    .article-content ul,
    .article-content ol {
      margin: 1.1em 0;
      padding-left: 1.35em;
    }

    .article-content li {
      margin: .45em 0;
      padding-left: .2em;
    }

    .article-content blockquote {
      margin: 1.5em 0;
      padding: 22px 24px;
      border: 0;
      border-radius: 24px;
      background: linear-gradient(135deg, rgba(250, 245, 255, .98), rgba(255, 247, 237, .9));
      color: var(--ink);
      box-shadow: inset 0 0 0 1px rgba(124, 58, 237, .12);
    }

    .article-content blockquote p {
      margin: .35em 0;
    }

    .article-content img {
      margin: 1.6em auto .6em;
      border-radius: 24px;
      box-shadow: 0 18px 48px rgba(31, 41, 55, .12);
    }

    .article-content figure {
      margin: 1.7em 0;
    }

    .article-content figcaption {
      text-align: center;
      color: var(--muted);
      font-size: 14px;
      margin-top: 10px;
    }

    .article-content table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      margin: 1.6em 0;
      overflow: hidden;
      border-radius: 20px;
      border: 1px solid rgba(124, 58, 237, .14);
      background: #fff;
      display: block;
      overflow-x: auto;
    }

    .article-content th,
    .article-content td {
      padding: 13px 16px;
      min-width: 140px;
      border-bottom: 1px solid rgba(124, 58, 237, .1);
      text-align: left;
      white-space: normal;
    }

    .article-content th {
      color: var(--ink);
      background: rgba(250, 245, 255, .9);
      font-weight: 900;
    }

    .article-content tr:last-child td {
      border-bottom: 0;
    }

    .article-content code {
      padding: 2px 7px;
      border-radius: 8px;
      background: rgba(124, 58, 237, .08);
      color: var(--primary);
      font-size: .92em;
    }

    .article-content pre {
      padding: 18px;
      overflow-x: auto;
      border-radius: 20px;
      background: #211638;
      color: #fff;
      line-height: 1.7;
    }

    .notice-card {
      margin-top: 26px;
      padding: 20px;
      border-radius: 24px;
      background: rgba(240, 253, 250, .8);
      border: 1px solid rgba(16, 185, 129, .2);
    }

    .notice-card strong {
      display: flex;
      align-items: center;
      gap: 8px;
      color: #047857;
      font-weight: 950;
      margin-bottom: 6px;
    }

    .notice-card p {
      margin: 0;
      color: var(--text);
      font-size: 15px;
      line-height: 1.8;
    }

    .empty-state {
      display: grid;
      place-items: center;
      text-align: center;
      min-height: 360px;
      padding: 34px;
      border-radius: 28px;
      background: linear-gradient(135deg, rgba(250, 245, 255, .95), rgba(255, 247, 237, .85));
      border: 1px dashed rgba(124, 58, 237, .25);
    }

    .empty-icon {
      width: 76px;
      height: 76px;
      display: grid;
      place-items: center;
      margin: 0 auto 16px;
      border-radius: 26px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 18px 40px rgba(124, 58, 237, .18);
    }

    .empty-state h2 {
      margin: 0 0 8px;
      font-size: 28px;
      font-weight: 950;
      color: var(--ink);
    }

    .empty-state p {
      margin: 0 0 18px;
      color: var(--text);
    }

    .sidebar {
      position: sticky;
      top: 100px;
      display: grid;
      gap: 18px;
    }

    .side-card {
      padding: 22px;
      border-radius: 26px;
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(124, 58, 237, .13);
      box-shadow: 0 14px 40px rgba(124, 58, 237, .08);
    }

    .side-card h2,
    .side-card h3 {
      margin: 0 0 14px;
      font-size: 18px;
      line-height: 1.35;
      font-weight: 950;
      color: var(--ink);
    }

    .toc-list {
      display: grid;
      gap: 9px;
    }

    .toc-list a {
      display: flex;
      align-items: center;
      gap: 9px;
      padding: 10px 12px;
      border-radius: 16px;
      color: var(--text);
      font-size: 14px;
      font-weight: 800;
      background: rgba(250, 245, 255, .55);
      border: 1px solid transparent;
    }

    .toc-list a:hover {
      color: var(--primary);
      border-color: rgba(124, 58, 237, .16);
      background: rgba(250, 245, 255, .95);
      transform: translateX(2px);
    }

    .safety-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .safety-list li {
      display: flex;
      align-items: flex-start;
      gap: 9px;
      color: var(--text);
      font-size: 14px;
      line-height: 1.65;
    }

    .check {
      flex: 0 0 auto;
      width: 20px;
      height: 20px;
      margin-top: 2px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      color: #fff;
      background: var(--mint);
      font-size: 12px;
      font-weight: 950;
    }

    .related-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 22px;
      align-items: stretch;
    }

    .related-card {
      padding: 26px;
      border-radius: 30px;
      background: rgba(255,255,255,.82);
      border: 1px solid rgba(124, 58, 237, .14);
      box-shadow: 0 18px 52px rgba(124, 58, 237, .08);
    }

    .related-card h2,
    .related-card h3 {
      margin: 12px 0 10px;
      font-size: 24px;
      line-height: 1.28;
      font-weight: 950;
      color: var(--ink);
    }

    .related-card p {
      margin: 0 0 18px;
      color: var(--text);
      line-height: 1.8;
    }

    .route-list {
      display: grid;
      gap: 12px;
      margin-top: 4px;
    }

    .route-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 14px;
      padding: 14px 15px;
      border-radius: 20px;
      border: 1px solid rgba(124, 58, 237, .12);
      background: rgba(250, 245, 255, .58);
    }

    .route-item strong {
      display: block;
      color: var(--ink);
      font-size: 15px;
      line-height: 1.35;
    }

    .route-item span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      margin-top: 2px;
    }

    .route-arrow {
      flex: 0 0 auto;
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 999px;
      color: var(--primary);
      background: #fff;
      box-shadow: 0 8px 20px rgba(124, 58, 237, .1);
    }

    .faq-grid {
      display: grid;
      gap: 14px;
    }

    .faq-item {
      border: 1px solid rgba(124, 58, 237, .13);
      border-radius: 24px;
      background: rgba(255,255,255,.76);
      overflow: hidden;
      box-shadow: 0 12px 34px rgba(124, 58, 237, .06);
    }

    .faq-trigger {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 19px 22px;
      border: 0;
      background: transparent;
      color: var(--ink);
      font-weight: 950;
      text-align: left;
    }

    .faq-icon {
      width: 30px;
      height: 30px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 999px;
      color: var(--primary);
      background: rgba(124, 58, 237, .09);
      transition: transform .2s ease, background .2s ease;
    }

    .faq-item.active {
      background: rgba(250, 245, 255, .92);
    }

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

    .faq-panel {
      display: none;
      padding: 0 22px 20px;
      color: var(--text);
      font-size: 15px;
      line-height: 1.85;
    }

    .faq-item.active .faq-panel {
      display: block;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      border-radius: 40px;
      padding: clamp(30px, 5vw, 52px);
      color: #fff;
      background:
        radial-gradient(circle at 12% 20%, rgba(255,255,255,.22), transparent 18%),
        radial-gradient(circle at 86% 72%, rgba(255,255,255,.18), transparent 21%),
        linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 45%, var(--accent) 100%);
      box-shadow: 0 32px 90px rgba(124, 58, 237, .23);
      display: grid;
      grid-template-columns: 1fr auto;
      align-items: center;
      gap: 28px;
    }

    .cta-panel:before {
      content: "";
      position: absolute;
      width: 180px;
      height: 180px;
      right: -56px;
      top: -58px;
      border-radius: 48px;
      transform: rotate(18deg);
      background: rgba(255,255,255,.12);
    }

    .cta-panel h2 {
      margin: 12px 0 10px;
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.15;
      letter-spacing: -0.04em;
      font-weight: 950;
    }

    .cta-panel p {
      margin: 0;
      max-width: 710px;
      color: rgba(255,255,255,.88);
      line-height: 1.85;
    }

    .cta-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      position: relative;
      z-index: 1;
    }

    .cta-actions .btn-secondary {
      background: rgba(255,255,255,.92);
      color: var(--primary);
    }

    .footer {
      padding: 64px 0 28px;
      background:
        radial-gradient(circle at 12% 10%, rgba(251, 146, 60, .18), transparent 24%),
        linear-gradient(180deg, #24113f 0%, #160b28 100%);
      color: #fff;
    }

    .footer .brand {
      color: #fff;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .9fr;
      gap: 34px;
      align-items: start;
    }

    .footer p {
      max-width: 520px;
      margin: 16px 0 0;
      color: rgba(255,255,255,.72);
      line-height: 1.85;
    }

    .footer h3 {
      margin: 6px 0 14px;
      font-size: 16px;
      font-weight: 950;
      color: #fff;
    }

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

    .footer-links a {
      color: rgba(255,255,255,.72);
      font-weight: 750;
    }

    .footer-links a:hover {
      color: #fff;
      transform: translateX(2px);
    }

    .footer-bottom {
      margin-top: 42px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.12);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      color: rgba(255,255,255,.62);
      font-size: 14px;
    }

    @media (prefers-reduced-motion: no-preference) {
      .brand-mark svg,
      .play-button svg {
        animation: floatSoft 3.8s ease-in-out infinite;
      }

      @keyframes floatSoft {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-4px); }
      }
    }

    @media (max-width: 1024px) {
      .desktop-nav {
        display: none;
      }

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

      .article-kv,
      .article-layout,
      .related-grid,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .sidebar {
        position: static;
        grid-template-columns: 1fr 1fr;
      }

      .dp-cover {
        min-height: 380px;
        transform: none;
      }

      .dp-cover-inner {
        transform: none;
      }
    }

    @media (max-width: 768px) {
      .site-container {
        width: min(calc(100% - 32px), var(--container));
      }

      .nav-wrap {
        height: 68px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 14px;
      }

      .brand-text {
        max-width: 170px;
        font-size: 16px;
      }

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

      .section {
        padding: 68px 0;
      }

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

      .article-hero {
        padding-top: 34px;
      }

      .article-title-card {
        border-radius: 30px;
      }

      .article-title-card h1 {
        font-size: clamp(34px, 10vw, 46px);
      }

      .article-summary {
        font-size: 16px;
      }

      .dp-cover {
        min-height: 330px;
        border-radius: 30px;
      }

      .dp-cover-inner {
        inset: 16px;
        padding: 18px;
        border-radius: 24px;
      }

      .play-button {
        width: 92px;
        height: 92px;
        border-radius: 28px;
      }

      .cover-note {
        left: 18px;
        right: 18px;
        bottom: 18px;
        grid-template-columns: 1fr;
      }

      .pill-nav-wrap {
        padding-bottom: 22px;
      }

      .pill-nav {
        border-radius: 24px;
      }

      .article-shell {
        padding: 24px 18px;
        border-radius: 28px;
      }

      .article-content {
        font-size: 16px;
        line-height: 1.88;
      }

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

      .cta-actions {
        width: 100%;
      }

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

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

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

    @media (max-width: 520px) {
      .site-container {
        width: min(calc(100% - 28px), var(--container));
      }

      .brand-text {
        max-width: 142px;
      }

      .article-meta {
        gap: 8px;
      }

      .meta-chip {
        font-size: 12px;
      }

      .breadcrumb {
        margin-bottom: 18px;
      }

      .article-title-card h1 {
        letter-spacing: -0.045em;
      }

      .section-head {
        display: block;
      }

      .related-card,
      .side-card {
        padding: 20px;
      }

      .footer {
        padding-top: 52px;
      }
    }