/* roulang page: index */
:root {
      --bg: #f6f3ec;
      --surface: #fffaf0;
      --surface-2: #ffffff;
      --ink: #151923;
      --muted: #667085;
      --soft: #8a92a6;
      --line: rgba(21, 25, 35, .1);
      --line-strong: rgba(21, 25, 35, .16);
      --primary: #f97316;
      --primary-dark: #c2410c;
      --primary-soft: #ffedd5;
      --secondary: #111827;
      --teal: #0f766e;
      --green: #16a34a;
      --yellow: #facc15;
      --red: #ef4444;
      --blue: #2563eb;
      --radius-xs: 10px;
      --radius-sm: 14px;
      --radius: 22px;
      --radius-lg: 32px;
      --shadow-sm: 0 8px 24px rgba(17, 24, 39, .08);
      --shadow: 0 18px 50px rgba(17, 24, 39, .12);
      --shadow-lg: 0 28px 80px rgba(17, 24, 39, .18);
      --sidebar: 292px;
      --container: 1180px;
      --ease: all .22s ease;
    }

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

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

    body {
      min-height: 100vh;
      background:
        radial-gradient(circle at 18% 4%, rgba(249, 115, 22, .13), transparent 30%),
        radial-gradient(circle at 100% 0%, rgba(15, 118, 110, .12), transparent 28%),
        linear-gradient(180deg, #fbf7ef 0%, var(--bg) 48%, #f7f7fb 100%);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.75;
      letter-spacing: .01em;
    }

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

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

    button, input, textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    input {
      border: 0;
      outline: none;
      background: transparent;
    }

    ::selection {
      background: rgba(249, 115, 22, .24);
      color: var(--secondary);
    }

    :focus-visible {
      outline: 3px solid rgba(249, 115, 22, .35);
      outline-offset: 4px;
      border-radius: 10px;
    }

    .container {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }

    .app-sidebar {
      position: fixed;
      inset: 0 auto 0 0;
      z-index: 50;
      width: var(--sidebar);
      padding: 24px;
      background: rgba(255, 250, 240, .82);
      border-right: 1px solid var(--line);
      backdrop-filter: blur(20px);
      display: flex;
      flex-direction: column;
      gap: 22px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 8px;
      border-radius: 18px;
    }

    .brand-mark {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      background: linear-gradient(135deg, var(--secondary), #374151 52%, var(--primary));
      color: #fff;
      display: grid;
      place-items: center;
      font-weight: 900;
      letter-spacing: -.06em;
      box-shadow: var(--shadow-sm);
    }

    .brand-name {
      display: grid;
      line-height: 1.25;
      font-weight: 900;
      color: var(--secondary);
      font-size: 16px;
    }

    .brand-name small {
      margin-top: 3px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
    }

    .side-search {
      padding: 12px;
      background: rgba(255, 255, 255, .66);
      border: 1px solid var(--line);
      border-radius: 18px;
      box-shadow: 0 10px 28px rgba(17, 24, 39, .05);
    }

    .side-search label {
      display: block;
      margin-bottom: 8px;
      color: var(--soft);
      font-size: 12px;
      font-weight: 800;
    }

    .search-box {
      display: flex;
      align-items: center;
      gap: 8px;
      background: #fff;
      border: 1px solid rgba(17, 24, 39, .08);
      border-radius: 14px;
      padding: 10px 11px;
    }

    .search-box span {
      color: var(--primary);
      font-weight: 900;
    }

    .search-box input {
      min-width: 0;
      width: 100%;
      color: var(--secondary);
      font-size: 14px;
    }

    .nav-list {
      display: grid;
      gap: 8px;
      padding: 8px 0;
    }

    .nav-link {
      display: flex;
      align-items: center;
      gap: 11px;
      padding: 13px 14px;
      color: #3f4657;
      border-radius: 16px;
      font-weight: 800;
      border: 1px solid transparent;
    }

    .nav-link:hover {
      color: var(--secondary);
      background: rgba(249, 115, 22, .08);
      border-color: rgba(249, 115, 22, .16);
      transform: translateX(2px);
    }

    .nav-link.active {
      color: var(--secondary);
      background: var(--secondary);
      color: #fff;
      box-shadow: var(--shadow-sm);
    }

    .nav-icon {
      width: 28px;
      height: 28px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: rgba(249, 115, 22, .14);
      color: var(--primary);
    }

    .nav-link.active .nav-icon {
      background: rgba(255, 255, 255, .16);
      color: #fff;
    }

    .sidebar-card {
      margin-top: auto;
      padding: 18px;
      border-radius: 22px;
      background:
        linear-gradient(135deg, rgba(17, 24, 39, .96), rgba(31, 41, 55, .94)),
        radial-gradient(circle at 100% 0, rgba(249, 115, 22, .3), transparent 40%);
      color: #fff;
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }

    .sidebar-card::after {
      content: "";
      position: absolute;
      width: 86px;
      height: 86px;
      right: -28px;
      top: -24px;
      border-radius: 50%;
      background: rgba(249, 115, 22, .35);
      filter: blur(2px);
    }

    .sidebar-card strong {
      position: relative;
      display: block;
      font-size: 16px;
      margin-bottom: 8px;
    }

    .sidebar-card p {
      position: relative;
      color: rgba(255, 255, 255, .74);
      font-size: 13px;
      line-height: 1.65;
    }

    .mobile-bar {
      display: none;
      position: sticky;
      top: 0;
      z-index: 60;
      padding: 12px 18px;
      background: rgba(255, 250, 240, .9);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(18px);
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .menu-toggle {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: var(--secondary);
      color: #fff;
      display: grid;
      place-items: center;
      box-shadow: var(--shadow-sm);
    }

    .menu-toggle:active {
      transform: scale(.96);
    }

    .page {
      margin-left: var(--sidebar);
      min-height: 100vh;
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 76px 0;
      position: relative;
    }

    .section.compact {
      padding: 58px 0;
    }

    .section-head {
      display: grid;
      gap: 12px;
      margin-bottom: 30px;
    }

    .section-head.split {
      grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
      align-items: end;
      gap: 28px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 7px 11px;
      border-radius: 999px;
      background: rgba(249, 115, 22, .12);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 900;
    }

    .eyebrow.dark {
      background: rgba(255, 255, 255, .12);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, .14);
    }

    .section-title {
      max-width: 780px;
      font-size: clamp(28px, 4vw, 48px);
      line-height: 1.16;
      letter-spacing: -.04em;
      color: var(--secondary);
    }

    .section-desc {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.9;
    }

    .btn-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 13px 18px;
      border-radius: 999px;
      font-weight: 900;
      border: 1px solid transparent;
      box-shadow: 0 12px 26px rgba(17, 24, 39, .1);
      white-space: nowrap;
    }

    .btn.primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), #ea580c);
    }

    .btn.primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(249, 115, 22, .28);
    }

    .btn.dark {
      color: #fff;
      background: var(--secondary);
    }

    .btn.dark:hover {
      transform: translateY(-2px);
      background: #050816;
    }

    .btn.ghost {
      color: var(--secondary);
      background: rgba(255, 255, 255, .72);
      border-color: var(--line);
      box-shadow: none;
    }

    .btn.ghost:hover {
      background: #fff;
      border-color: rgba(249, 115, 22, .32);
      transform: translateY(-2px);
    }

    .btn.block {
      width: 100%;
    }

    .hero {
      padding: 32px 0 70px;
    }

    .promo-hero {
      position: relative;
      overflow: hidden;
      min-height: 620px;
      border-radius: 38px;
      background:
        linear-gradient(125deg, rgba(17, 24, 39, .98) 0%, rgba(30, 41, 59, .96) 44%, rgba(249, 115, 22, .94) 100%);
      color: #fff;
      box-shadow: var(--shadow-lg);
      isolation: isolate;
    }

    .promo-hero::before,
    .promo-hero::after {
      content: "";
      position: absolute;
      border-radius: 999px;
      z-index: -1;
      filter: blur(2px);
    }

    .promo-hero::before {
      width: 480px;
      height: 480px;
      right: -160px;
      top: -180px;
      background: rgba(255, 255, 255, .16);
    }

    .promo-hero::after {
      width: 360px;
      height: 360px;
      left: -150px;
      bottom: -160px;
      background: rgba(249, 115, 22, .18);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
      min-height: 620px;
      align-items: stretch;
    }

    .hero-copy {
      padding: clamp(34px, 6vw, 70px);
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 24px;
    }

    .promo-ribbon {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
    }

    .ribbon-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      color: rgba(255, 255, 255, .88);
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .14);
      font-size: 13px;
      font-weight: 900;
    }

    .hero h1 {
      max-width: 830px;
      font-size: clamp(38px, 6vw, 76px);
      line-height: 1.04;
      letter-spacing: -.065em;
    }

    .hero-intro {
      max-width: 680px;
      color: rgba(255, 255, 255, .78);
      font-size: clamp(16px, 2vw, 19px);
      line-height: 1.9;
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 740px;
    }

    .stat-chip {
      padding: 15px;
      border-radius: 20px;
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .12);
    }

    .stat-chip b {
      display: block;
      font-size: 24px;
      line-height: 1.1;
    }

    .stat-chip span {
      color: rgba(255, 255, 255, .68);
      font-size: 13px;
      font-weight: 700;
    }

    .hero-stage {
      position: relative;
      padding: 42px;
      display: grid;
      align-content: center;
      gap: 16px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .02));
      border-left: 1px solid rgba(255, 255, 255, .12);
    }

    .burst {
      position: absolute;
      top: 34px;
      right: 34px;
      width: 118px;
      height: 118px;
      display: grid;
      place-items: center;
      text-align: center;
      padding: 14px;
      color: var(--secondary);
      background: var(--yellow);
      font-weight: 1000;
      line-height: 1.18;
      clip-path: polygon(50% 0%, 60% 20%, 82% 12%, 80% 36%, 100% 50%, 80% 62%, 86% 86%, 62% 80%, 50% 100%, 38% 80%, 14% 86%, 20% 62%, 0% 50%, 20% 36%, 18% 12%, 40% 20%);
      transform: rotate(10deg);
      box-shadow: 0 18px 40px rgba(250, 204, 21, .25);
    }

    .stage-card {
      border-radius: 28px;
      padding: 22px;
      background: rgba(255, 255, 255, .9);
      color: var(--secondary);
      box-shadow: 0 22px 60px rgba(0, 0, 0, .2);
      border: 1px solid rgba(255, 255, 255, .4);
    }

    .stage-card.highlight {
      margin-top: 72px;
      background: #fffaf0;
      transform: rotate(-1.5deg);
    }

    .stage-card.alt {
      max-width: 86%;
      justify-self: end;
      background: #111827;
      color: #fff;
      transform: rotate(1.5deg);
      border-color: rgba(255, 255, 255, .12);
    }

    .stage-title {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: flex-start;
      margin-bottom: 14px;
      font-weight: 1000;
      font-size: 18px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 28px;
      padding: 5px 10px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-size: 12px;
      font-weight: 900;
      white-space: nowrap;
    }

    .tag.dark {
      background: rgba(255, 255, 255, .12);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, .12);
    }

    .format-bars {
      display: grid;
      gap: 10px;
    }

    .bar-row {
      display: grid;
      grid-template-columns: 68px 1fr 50px;
      gap: 10px;
      align-items: center;
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .bar {
      height: 10px;
      background: rgba(17, 24, 39, .08);
      border-radius: 999px;
      overflow: hidden;
    }

    .bar i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), #fb923c);
    }

    .mini-list {
      display: grid;
      gap: 10px;
      margin-top: 14px;
    }

    .mini-list li {
      list-style: none;
      display: flex;
      gap: 9px;
      align-items: flex-start;
      color: rgba(255, 255, 255, .78);
      font-size: 14px;
    }

    .mini-list li::before {
      content: "✓";
      color: var(--yellow);
      font-weight: 1000;
    }

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

    .benefit-main {
      position: relative;
      overflow: hidden;
      padding: 34px;
      border-radius: 32px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
    }

    .benefit-main::after {
      content: "";
      position: absolute;
      right: -56px;
      top: -74px;
      width: 210px;
      height: 210px;
      border-radius: 50%;
      background: rgba(249, 115, 22, .12);
    }

    .benefit-main h3 {
      max-width: 620px;
      font-size: clamp(24px, 3vw, 36px);
      line-height: 1.2;
      letter-spacing: -.03em;
      margin: 12px 0;
    }

    .benefit-main p {
      max-width: 720px;
      color: var(--muted);
    }

    .benefit-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      margin-top: 26px;
    }

    .benefit-item {
      min-height: 132px;
      padding: 18px;
      border-radius: 22px;
      background: #f9fafb;
      border: 1px solid rgba(17, 24, 39, .06);
      transition: var(--ease);
    }

    .benefit-item:hover {
      transform: translateY(-4px);
      background: #fff7ed;
      border-color: rgba(249, 115, 22, .18);
      box-shadow: var(--shadow-sm);
    }

    .benefit-item b {
      display: block;
      margin-bottom: 8px;
      font-size: 17px;
    }

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

    .member-card {
      padding: 28px;
      border-radius: 32px;
      background:
        linear-gradient(180deg, #111827, #1f2937);
      color: #fff;
      box-shadow: var(--shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 22px;
    }

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

    .score-box {
      padding: 17px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .09);
      border: 1px solid rgba(255, 255, 255, .1);
    }

    .score-box b {
      display: block;
      font-size: 30px;
      line-height: 1.1;
      color: #fff;
    }

    .score-box span {
      display: block;
      color: rgba(255, 255, 255, .68);
      font-size: 13px;
      margin-top: 4px;
    }

    .plans-wrap {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
      align-items: stretch;
    }

    .plan {
      position: relative;
      padding: 26px;
      border-radius: 30px;
      background: rgba(255, 255, 255, .84);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .plan:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow);
      border-color: rgba(249, 115, 22, .24);
    }

    .plan.featured {
      background: var(--secondary);
      color: #fff;
      border-color: rgba(255, 255, 255, .12);
      transform: translateY(-10px);
      box-shadow: var(--shadow-lg);
    }

    .plan.featured:hover {
      transform: translateY(-14px);
    }

    .plan h3 {
      font-size: 23px;
      letter-spacing: -.02em;
    }

    .price {
      display: flex;
      align-items: baseline;
      gap: 4px;
      font-weight: 1000;
    }

    .price strong {
      font-size: 46px;
      line-height: 1;
      letter-spacing: -.05em;
    }

    .price span {
      color: var(--muted);
      font-weight: 800;
    }

    .plan.featured .price span,
    .plan.featured .plan-note,
    .plan.featured .plan-list li {
      color: rgba(255, 255, 255, .72);
    }

    .plan-note {
      color: var(--muted);
      font-size: 14px;
      min-height: 50px;
    }

    .plan-list {
      display: grid;
      gap: 11px;
      margin-top: 4px;
    }

    .plan-list li {
      list-style: none;
      display: flex;
      gap: 9px;
      color: var(--muted);
      font-size: 14px;
    }

    .plan-list li::before {
      content: "●";
      color: var(--primary);
      font-size: 12px;
      transform: translateY(1px);
    }

    .plan.featured .plan-list li::before {
      color: var(--yellow);
    }

    .notice-line {
      margin-top: 18px;
      padding: 16px 18px;
      border-radius: 18px;
      background: rgba(15, 118, 110, .08);
      border: 1px solid rgba(15, 118, 110, .18);
      color: #0f766e;
      font-weight: 800;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
      gap: 22px;
      align-items: start;
    }

    .news-panel, .recommend-panel {
      border-radius: 32px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .news-list {
      display: grid;
    }

    .news-link {
      display: grid;
      grid-template-columns: 108px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 20px 24px;
      border-bottom: 1px solid rgba(17, 24, 39, .07);
    }

    .news-link:last-child {
      border-bottom: 0;
    }

    .news-link:hover {
      background: #fff7ed;
    }

    .news-date {
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 900;
    }

    .news-title {
      font-weight: 900;
      color: var(--secondary);
      line-height: 1.45;
    }

    .news-link p {
      margin-top: 4px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
    }

    .arrow {
      width: 34px;
      height: 34px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: rgba(17, 24, 39, .06);
      color: var(--secondary);
      font-weight: 900;
    }

    .news-link:hover .arrow {
      background: var(--primary);
      color: #fff;
      transform: translateX(2px);
    }

    .recommend-panel {
      padding: 24px;
      position: sticky;
      top: 24px;
    }

    .recommend-panel h3 {
      font-size: 22px;
      margin-bottom: 10px;
    }

    .recommend-panel p {
      color: var(--muted);
      font-size: 15px;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 20px;
    }

    .tag-cloud a {
      padding: 9px 12px;
      border-radius: 999px;
      background: #f3f4f6;
      color: #475467;
      font-size: 13px;
      font-weight: 900;
      border: 1px solid rgba(17, 24, 39, .06);
    }

    .tag-cloud a:hover {
      background: var(--secondary);
      color: #fff;
      transform: translateY(-2px);
    }

    .open-section {
      color: #fff;
    }

    .open-box {
      position: relative;
      overflow: hidden;
      border-radius: 38px;
      padding: clamp(28px, 5vw, 54px);
      background:
        radial-gradient(circle at 92% 15%, rgba(250, 204, 21, .24), transparent 26%),
        linear-gradient(135deg, #0f172a 0%, #111827 48%, #7c2d12 100%);
      box-shadow: var(--shadow-lg);
    }

    .open-box::before {
      content: "";
      position: absolute;
      inset: 18px;
      border-radius: 28px;
      border: 1px solid rgba(255, 255, 255, .1);
      pointer-events: none;
    }

    .open-grid {
      position: relative;
      display: grid;
      grid-template-columns: 1fr minmax(300px, 420px);
      gap: 30px;
      align-items: center;
    }

    .open-box .section-title {
      color: #fff;
    }

    .open-box .section-desc {
      color: rgba(255, 255, 255, .74);
    }

    .countdown {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 10px;
      margin: 24px 0;
      max-width: 560px;
    }

    .time-box {
      padding: 15px 10px;
      border-radius: 18px;
      text-align: center;
      background: rgba(255, 255, 255, .1);
      border: 1px solid rgba(255, 255, 255, .13);
    }

    .time-box b {
      display: block;
      font-size: 30px;
      line-height: 1.1;
      letter-spacing: -.03em;
    }

    .time-box span {
      color: rgba(255, 255, 255, .62);
      font-size: 12px;
      font-weight: 900;
    }

    .open-form {
      padding: 24px;
      border-radius: 30px;
      background: rgba(255, 255, 255, .94);
      color: var(--secondary);
      box-shadow: 0 20px 60px rgba(0, 0, 0, .24);
    }

    .open-form h3 {
      font-size: 23px;
      margin-bottom: 8px;
    }

    .open-form p {
      color: var(--muted);
      font-size: 14px;
      margin-bottom: 16px;
    }

    .field {
      display: grid;
      gap: 8px;
      margin-bottom: 12px;
    }

    .field label {
      color: #344054;
      font-size: 13px;
      font-weight: 900;
    }

    .field input {
      width: 100%;
      padding: 14px 15px;
      border-radius: 16px;
      background: #f9fafb;
      border: 1px solid rgba(17, 24, 39, .1);
      color: var(--secondary);
      transition: var(--ease);
    }

    .field input:focus {
      background: #fff;
      border-color: rgba(249, 115, 22, .48);
      box-shadow: 0 0 0 4px rgba(249, 115, 22, .1);
    }

    .form-tip {
      min-height: 24px;
      color: var(--teal);
      font-size: 13px;
      font-weight: 800;
      margin-top: 10px;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 22px;
    }

    .steps-aside {
      padding: 30px;
      border-radius: 32px;
      background: #fff7ed;
      border: 1px solid rgba(249, 115, 22, .15);
      box-shadow: var(--shadow-sm);
    }

    .steps-aside h2 {
      font-size: clamp(27px, 3.5vw, 42px);
      line-height: 1.18;
      letter-spacing: -.035em;
      margin: 12px 0;
    }

    .steps-aside p {
      color: var(--muted);
    }

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

    .step-item {
      display: grid;
      grid-template-columns: 56px 1fr;
      gap: 16px;
      padding: 20px;
      border-radius: 26px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
    }

    .step-item:hover {
      transform: translateX(4px);
      border-color: rgba(249, 115, 22, .22);
    }

    .step-num {
      width: 56px;
      height: 56px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      background: var(--secondary);
      color: #fff;
      font-weight: 1000;
      font-size: 18px;
    }

    .step-item h3 {
      font-size: 18px;
      margin-bottom: 5px;
    }

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

    .changelog {
      display: grid;
      gap: 14px;
      position: relative;
    }

    .change-item {
      display: grid;
      grid-template-columns: 130px 1fr;
      gap: 20px;
      padding: 22px;
      border-radius: 26px;
      background: rgba(255, 255, 255, .82);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
    }

    .change-version {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--primary-dark);
      font-weight: 1000;
    }

    .dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      margin-top: 9px;
      background: var(--primary);
      box-shadow: 0 0 0 6px rgba(249, 115, 22, .12);
      flex: 0 0 auto;
    }

    .change-item h3 {
      font-size: 19px;
      margin-bottom: 6px;
    }

    .change-item p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 28px;
      align-items: start;
    }

    .faq-card {
      padding: 30px;
      border-radius: 32px;
      background: var(--secondary);
      color: #fff;
      position: sticky;
      top: 26px;
      box-shadow: var(--shadow);
    }

    .faq-card h2 {
      font-size: clamp(28px, 3.5vw, 44px);
      line-height: 1.18;
      margin: 13px 0;
      letter-spacing: -.04em;
    }

    .faq-card p {
      color: rgba(255, 255, 255, .72);
    }

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

    details.faq-item {
      border-radius: 24px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: var(--ease);
    }

    details.faq-item:hover {
      border-color: rgba(249, 115, 22, .18);
    }

    details.faq-item[open] {
      box-shadow: var(--shadow);
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: center;
      color: var(--secondary);
      font-weight: 1000;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "+";
      flex: 0 0 auto;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: #f3f4f6;
      color: var(--secondary);
      font-size: 20px;
      line-height: 1;
      transition: var(--ease);
    }

    .faq-item[open] summary::after {
      content: "−";
      background: var(--primary);
      color: #fff;
      transform: rotate(180deg);
    }

    .faq-answer {
      padding: 0 24px 22px;
      color: var(--muted);
      font-size: 15px;
    }

    .footer {
      margin-left: var(--sidebar);
      padding: 0 0 32px;
    }

    .footer-inner {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
      border-radius: 34px;
      padding: 34px;
      background: #111827;
      color: #fff;
      box-shadow: var(--shadow-lg);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
      padding-bottom: 24px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .footer-brand {
      display: flex;
      gap: 13px;
      align-items: center;
    }

    .footer-brand .brand-mark {
      box-shadow: none;
      background: linear-gradient(135deg, #fff, #fed7aa);
      color: var(--secondary);
    }

    .footer-brand strong {
      display: block;
      font-size: 18px;
    }

    .footer-brand span {
      display: block;
      color: rgba(255, 255, 255, .62);
      font-size: 13px;
      margin-top: 2px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .footer-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: rgba(255, 255, 255, .72);
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .08);
      font-size: 13px;
      font-weight: 800;
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(249, 115, 22, .28);
    }

    .footer-bottom {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 18px;
      padding-top: 22px;
      color: rgba(255, 255, 255, .58);
      font-size: 13px;
    }

    .legal-note {
      max-width: 780px;
    }

    .backtop {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 40;
      width: 48px;
      height: 48px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: #fff;
      background: var(--secondary);
      box-shadow: var(--shadow);
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
    }

    .backtop.show {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .backtop:hover {
      background: var(--primary);
      transform: translateY(-2px);
    }

    @media (max-width: 1180px) {
      :root {
        --sidebar: 248px;
      }

      .app-sidebar {
        padding: 18px;
      }

      .hero-grid,
      .benefit-strip,
      .open-grid,
      .steps-grid,
      .faq-wrap {
        grid-template-columns: 1fr;
      }

      .hero-stage {
        border-left: 0;
        border-top: 1px solid rgba(255, 255, 255, .12);
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .stage-card.highlight {
        margin-top: 0;
      }

      .stage-card.alt {
        max-width: none;
      }

      .recommend-panel,
      .faq-card {
        position: static;
      }
    }

    @media (max-width: 920px) {
      .mobile-bar {
        display: flex;
      }

      .app-sidebar {
        transform: translateX(-110%);
        transition: transform .28s ease;
        width: min(86vw, 340px);
        box-shadow: var(--shadow-lg);
      }

      .app-sidebar.open {
        transform: translateX(0);
      }

      .page,
      .footer {
        margin-left: 0;
      }

      .container,
      .footer-inner {
        width: min(100% - 34px, var(--container));
      }

      .section {
        padding: 58px 0;
      }

      .hero {
        padding-top: 18px;
      }

      .section-head.split,
      .news-layout {
        grid-template-columns: 1fr;
      }

      .plans-wrap {
        grid-template-columns: 1fr;
      }

      .plan.featured {
        transform: none;
      }

      .plan.featured:hover {
        transform: translateY(-6px);
      }

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

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

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

      .hero-stage {
        padding: 24px;
      }

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

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

    @media (max-width: 640px) {
      body {
        line-height: 1.7;
      }

      .container,
      .footer-inner {
        width: min(100% - 28px, var(--container));
      }

      .mobile-bar {
        padding: 10px 14px;
      }

      .brand-name {
        font-size: 14px;
      }

      .brand-name small {
        display: none;
      }

      .promo-hero {
        border-radius: 24px;
      }

      .promo-ribbon {
        gap: 8px;
      }

      .ribbon-item {
        font-size: 12px;
      }

      .hero h1 {
        font-size: clamp(34px, 12vw, 48px);
      }

      .hero-stats,
      .benefit-grid,
      .member-score,
      .hero-stage,
      .countdown {
        grid-template-columns: 1fr;
      }

      .burst {
        width: 92px;
        height: 92px;
        top: 18px;
        right: 14px;
        font-size: 13px;
      }

      .stage-card {
        padding: 18px;
      }

      .stage-card.highlight {
        margin-top: 52px;
      }

      .bar-row {
        grid-template-columns: 58px 1fr 42px;
      }

      .news-link {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .arrow {
        display: none;
      }

      .open-box {
        border-radius: 28px;
      }

      .open-box::before {
        inset: 10px;
        border-radius: 22px;
      }

      .step-item,
      .change-item {
        grid-template-columns: 1fr;
      }

      .section-title {
        font-size: clamp(27px, 9vw, 38px);
      }

      .btn {
        width: 100%;
      }

      .footer-inner {
        padding: 24px;
        border-radius: 26px;
      }
    }