/* roulang page: index */
:root {
      --color-ink: #19131f;
      --color-ink-2: #2a2033;
      --color-muted: #756b80;
      --color-soft: #f7f2f5;
      --color-panel: #fffafc;
      --color-white: #ffffff;
      --color-purple: #7b2cff;
      --color-purple-dark: #4a176f;
      --color-berry: #c92b70;
      --color-coral: #ff6f87;
      --color-orange: #ff9d4d;
      --color-line: rgba(82, 49, 93, .14);
      --color-line-dark: rgba(255,255,255,.16);
      --shadow-sm: 0 10px 26px rgba(36, 20, 49, .08);
      --shadow-md: 0 18px 50px rgba(36, 20, 49, .14);
      --shadow-lg: 0 26px 70px rgba(36, 20, 49, .22);
      --radius-sm: 14px;
      --radius-md: 22px;
      --radius-lg: 30px;
      --radius-pill: 999px;
      --container: 1200px;
      --transition: 220ms ease;
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-main);
      color: var(--color-ink);
      background:
        radial-gradient(circle at 12% 6%, rgba(255, 111, 135, .16), transparent 28%),
        radial-gradient(circle at 88% 10%, rgba(123, 44, 255, .12), transparent 24%),
        linear-gradient(180deg, #fff8fb 0%, #f8f4f7 48%, #fffafc 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

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

    a:hover,
    a:focus {
      color: var(--color-berry);
    }

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

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

    input,
    textarea,
    select {
      width: 100%;
      border: 1px solid var(--color-line);
      background: rgba(255,255,255,.82);
      border-radius: 16px;
      min-height: 48px;
      padding: 12px 15px;
      color: var(--color-ink);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.8);
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    textarea {
      min-height: 118px;
      resize: vertical;
    }

    input:focus,
    textarea:focus,
    select:focus,
    button:focus,
    .button:focus,
    a:focus-visible,
    summary:focus-visible {
      outline: none;
      border-color: rgba(201, 43, 112, .58);
      box-shadow: 0 0 0 4px rgba(201, 43, 112, .14);
    }

    .grid-container {
      max-width: var(--container);
      padding-left: 20px;
      padding-right: 20px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 250, 252, .88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(82, 49, 93, .1);
      box-shadow: 0 8px 28px rgba(37, 18, 44, .05);
    }

    .top-bar {
      background: transparent;
      padding: 0;
      min-height: 78px;
    }

    .top-bar ul {
      background: transparent;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: -.02em;
      color: var(--color-ink);
      min-height: 52px;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      background:
        radial-gradient(circle at 30% 26%, rgba(255,255,255,.95), transparent 18%),
        linear-gradient(135deg, var(--color-coral), var(--color-purple));
      display: grid;
      place-items: center;
      box-shadow: 0 12px 30px rgba(201, 43, 112, .25);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark:after {
      content: "";
      width: 0;
      height: 0;
      border-top: 8px solid transparent;
      border-bottom: 8px solid transparent;
      border-left: 12px solid #fff;
      margin-left: 3px;
      filter: drop-shadow(0 2px 3px rgba(0,0,0,.15));
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.12;
    }

    .brand-text strong {
      font-size: 17px;
      white-space: nowrap;
    }

    .brand-text span {
      font-size: 12px;
      color: var(--color-muted);
      font-weight: 600;
      margin-top: 3px;
    }

    .nav-menu {
      align-items: center;
      gap: 8px;
    }

    .nav-menu a:not(.nav-cta) {
      font-size: 15px;
      font-weight: 700;
      color: var(--color-ink-2);
      padding: 12px 14px;
      border-radius: var(--radius-pill);
      position: relative;
    }

    .nav-menu a:not(.nav-cta):hover,
    .nav-menu a.active:not(.nav-cta) {
      background: rgba(201, 43, 112, .09);
      color: var(--color-berry);
    }

    .nav-cta,
    .btn-primary,
    .btn-secondary,
    .btn-ghost,
    .btn-small {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-pill);
      font-weight: 800;
      line-height: 1.2;
      cursor: pointer;
      border: 1px solid transparent;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
      min-height: 44px;
      white-space: nowrap;
    }

    .nav-cta,
    .btn-primary {
      background: linear-gradient(135deg, var(--color-berry), var(--color-purple));
      color: #fff;
      box-shadow: 0 15px 34px rgba(123, 44, 255, .24);
    }

    .nav-cta {
      padding: 12px 18px;
      margin-left: 10px;
      font-size: 14px;
    }

    .btn-primary {
      padding: 15px 22px;
      font-size: 15px;
    }

    .btn-secondary {
      padding: 15px 22px;
      background: rgba(255,255,255,.78);
      color: var(--color-ink);
      border-color: rgba(82, 49, 93, .16);
      box-shadow: var(--shadow-sm);
    }

    .btn-ghost {
      padding: 13px 18px;
      color: #fff;
      border-color: rgba(255,255,255,.22);
      background: rgba(255,255,255,.08);
    }

    .btn-small {
      padding: 10px 14px;
      min-height: 38px;
      font-size: 13px;
      background: rgba(201, 43, 112, .09);
      color: var(--color-berry);
      border-color: rgba(201, 43, 112, .14);
    }

    .nav-cta:hover,
    .btn-primary:hover,
    .btn-secondary:hover,
    .btn-ghost:hover,
    .btn-small:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    .nav-cta:hover,
    .btn-primary:hover {
      color: #fff;
      background: linear-gradient(135deg, #d93479, #6a1ee7);
    }

    .menu-icon-wrap {
      display: none;
      align-items: center;
      justify-content: center;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      background: rgba(201, 43, 112, .09);
      border: 1px solid rgba(201, 43, 112, .12);
    }

    .menu-icon::after {
      background: var(--color-berry);
      box-shadow: 0 7px 0 var(--color-berry), 0 14px 0 var(--color-berry);
    }

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

    .section-tight {
      padding: 64px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-berry);
      background: rgba(201, 43, 112, .09);
      border: 1px solid rgba(201, 43, 112, .14);
      border-radius: var(--radius-pill);
      font-size: 13px;
      font-weight: 800;
      padding: 7px 12px;
      margin-bottom: 16px;
    }

    .eyebrow:before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-coral);
      box-shadow: 0 0 0 4px rgba(255,111,135,.16);
    }

    .section-title {
      font-size: clamp(28px, 3.1vw, 42px);
      line-height: 1.18;
      letter-spacing: -.04em;
      font-weight: 850;
      margin: 0 0 14px;
      color: var(--color-ink);
    }

    .section-desc {
      color: var(--color-muted);
      max-width: 720px;
      font-size: 16px;
      margin: 0;
    }

    .hero {
      padding: 86px 0 72px;
      overflow: hidden;
    }

    .hero:before {
      content: "";
      position: absolute;
      inset: 90px auto auto 50%;
      width: 680px;
      height: 680px;
      transform: translateX(-10%);
      background:
        radial-gradient(circle at 40% 35%, rgba(255, 111, 135, .2), transparent 30%),
        radial-gradient(circle at 70% 55%, rgba(123, 44, 255, .15), transparent 34%);
      filter: blur(6px);
      pointer-events: none;
    }

    .hero h1 {
      font-size: clamp(36px, 5.2vw, 64px);
      line-height: 1.08;
      letter-spacing: -.055em;
      font-weight: 900;
      margin: 0 0 22px;
      max-width: 760px;
      color: var(--color-ink);
    }

    .hero h1 .highlight {
      color: var(--color-berry);
      position: relative;
      display: inline-block;
    }

    .hero h1 .highlight:after {
      content: "";
      position: absolute;
      left: 3px;
      right: 3px;
      bottom: 5px;
      height: 10px;
      background: rgba(255, 157, 77, .35);
      z-index: -1;
      border-radius: 999px;
    }

    .hero-lead {
      font-size: 18px;
      color: var(--color-muted);
      max-width: 680px;
      margin: 0 0 26px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin: 28px 0 24px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 7px 12px;
      border-radius: var(--radius-pill);
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(82, 49, 93, .12);
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 700;
      box-shadow: 0 8px 20px rgba(36,20,49,.04);
    }

    .hero-panel {
      position: relative;
      border-radius: 34px;
      padding: 18px;
      background: linear-gradient(145deg, rgba(25,19,31,.96), rgba(75,23,111,.92));
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255,255,255,.18);
      overflow: hidden;
    }

    .hero-panel:before {
      content: "";
      position: absolute;
      inset: -120px -80px auto auto;
      width: 270px;
      height: 270px;
      border-radius: 50%;
      background: rgba(255, 111, 135, .36);
      filter: blur(20px);
    }

    .preview-top {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: #fff;
      margin-bottom: 16px;
      padding: 8px 8px 0;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      font-weight: 800;
      color: #ffe7ef;
      background: rgba(255,255,255,.1);
      border: 1px solid rgba(255,255,255,.16);
      border-radius: var(--radius-pill);
      padding: 7px 11px;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #47e6aa;
      box-shadow: 0 0 0 5px rgba(71,230,170,.15);
    }

    .mock-screen {
      position: relative;
      border-radius: 26px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.13), rgba(255,255,255,.05)),
        radial-gradient(circle at 20% 20%, rgba(255,111,135,.28), transparent 26%),
        radial-gradient(circle at 80% 30%, rgba(123,44,255,.32), transparent 30%);
      border: 1px solid rgba(255,255,255,.16);
      padding: 18px;
      min-height: 395px;
      overflow: hidden;
    }

    .mock-feature {
      display: grid;
      grid-template-columns: 1fr 116px;
      gap: 16px;
      align-items: stretch;
      margin-bottom: 18px;
    }

    .mock-card-dark {
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.14);
      border-radius: 22px;
      padding: 18px;
      color: #fff;
    }

    .mock-card-dark h3 {
      margin: 10px 0 8px;
      font-size: 22px;
      line-height: 1.25;
      font-weight: 850;
    }

    .mock-card-dark p {
      margin: 0;
      color: rgba(255,255,255,.72);
      font-size: 14px;
      line-height: 1.6;
    }

    .play-block {
      border-radius: 22px;
      background: linear-gradient(135deg, var(--color-coral), var(--color-orange));
      display: grid;
      place-items: center;
      min-height: 150px;
      box-shadow: 0 18px 44px rgba(255,111,135,.24);
    }

    .play-circle {
      width: 58px;
      height: 58px;
      border-radius: 50%;
      background: rgba(255,255,255,.9);
      position: relative;
    }

    .play-circle:after {
      content: "";
      position: absolute;
      left: 23px;
      top: 18px;
      border-top: 11px solid transparent;
      border-bottom: 11px solid transparent;
      border-left: 16px solid var(--color-berry);
    }

    .rank-list {
      display: grid;
      gap: 10px;
    }

    .rank-item {
      display: grid;
      grid-template-columns: 36px 1fr auto;
      gap: 10px;
      align-items: center;
      padding: 11px;
      border-radius: 16px;
      background: rgba(255,255,255,.1);
      border: 1px solid rgba(255,255,255,.12);
      color: rgba(255,255,255,.82);
    }

    .rank-item b {
      display: grid;
      place-items: center;
      width: 30px;
      height: 30px;
      border-radius: 10px;
      background: rgba(255,255,255,.14);
      color: #fff;
      font-size: 13px;
    }

    .rank-item strong {
      color: #fff;
      font-size: 14px;
    }

    .rank-item span {
      color: #ffd6e2;
      font-size: 12px;
      font-weight: 800;
    }

    .entry-wrap {
      align-items: stretch;
    }

    .intro-panel {
      height: 100%;
      padding: 32px;
      border-radius: var(--radius-lg);
      background: var(--color-ink);
      color: #fff;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .intro-panel:after {
      content: "";
      position: absolute;
      width: 230px;
      height: 230px;
      right: -90px;
      bottom: -120px;
      background: rgba(201, 43, 112, .38);
      border-radius: 50%;
      filter: blur(12px);
    }

    .intro-panel h2 {
      font-size: clamp(28px, 3vw, 40px);
      line-height: 1.16;
      font-weight: 900;
      letter-spacing: -.04em;
      margin: 0 0 16px;
      position: relative;
      z-index: 1;
    }

    .intro-panel p {
      color: rgba(255,255,255,.72);
      margin: 0 0 24px;
      position: relative;
      z-index: 1;
    }

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

    .entry-card,
    .content-card,
    .step-card,
    .stat-card,
    .faq-card,
    .form-panel,
    .mini-card {
      border-radius: var(--radius-md);
      background: rgba(255,255,255,.78);
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    }

    .entry-card {
      padding: 22px;
      min-height: 180px;
      position: relative;
      overflow: hidden;
    }

    .entry-card:hover,
    .content-card:hover,
    .step-card:hover,
    .mini-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(201, 43, 112, .28);
      background: rgba(255,255,255,.92);
    }

    .entry-icon {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      background: rgba(201, 43, 112, .1);
      color: var(--color-berry);
      font-weight: 900;
      margin-bottom: 16px;
    }

    .entry-card h3 {
      font-size: 20px;
      font-weight: 850;
      margin: 0 0 8px;
      letter-spacing: -.02em;
    }

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

    .entry-card .tag {
      background: rgba(247,242,245,.95);
      box-shadow: none;
    }

    .stats-band {
      background: linear-gradient(135deg, #19131f, #31123e 52%, #4a176f);
      color: #fff;
      border-radius: 34px;
      padding: 34px;
      border: 1px solid rgba(255,255,255,.14);
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }

    .stats-band:before {
      content: "";
      position: absolute;
      inset: auto -90px -120px auto;
      width: 300px;
      height: 300px;
      background: rgba(255, 111, 135, .28);
      border-radius: 50%;
      filter: blur(18px);
    }

    .stat-card {
      background: rgba(255,255,255,.08);
      border-color: rgba(255,255,255,.14);
      box-shadow: none;
      padding: 24px;
      color: #fff;
      height: 100%;
    }

    .stat-number {
      font-size: clamp(34px, 4vw, 52px);
      line-height: 1;
      font-weight: 900;
      letter-spacing: -.05em;
      color: #fff;
      margin-bottom: 12px;
    }

    .stat-number em {
      font-style: normal;
      color: var(--color-coral);
    }

    .stat-card p {
      color: rgba(255,255,255,.68);
      margin: 0;
      font-size: 14px;
    }

    .feature-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.28fr) minmax(280px, .72fr);
      gap: 20px;
      margin-top: 34px;
    }

    .content-card {
      padding: 0;
      overflow: hidden;
    }

    .featured-card {
      min-height: 420px;
      display: grid;
      grid-template-rows: 220px 1fr;
    }

    .abstract-cover {
      background:
        linear-gradient(135deg, rgba(201,43,112,.78), rgba(123,44,255,.72)),
        radial-gradient(circle at 18% 24%, rgba(255,255,255,.55), transparent 18%);
      position: relative;
      overflow: hidden;
    }

    .abstract-cover:before,
    .abstract-cover:after {
      content: "";
      position: absolute;
      border: 1px solid rgba(255,255,255,.28);
      border-radius: 26px;
      transform: rotate(-10deg);
    }

    .abstract-cover:before {
      width: 180px;
      height: 118px;
      left: 34px;
      top: 42px;
      background: rgba(255,255,255,.1);
    }

    .abstract-cover:after {
      width: 220px;
      height: 140px;
      right: -20px;
      bottom: 20px;
      background: rgba(25,19,31,.12);
    }

    .cover-play {
      position: absolute;
      left: 50%;
      top: 50%;
      width: 70px;
      height: 70px;
      transform: translate(-50%, -50%);
      border-radius: 50%;
      background: rgba(255,255,255,.92);
      box-shadow: 0 16px 40px rgba(25,19,31,.2);
    }

    .cover-play:after {
      content: "";
      position: absolute;
      left: 29px;
      top: 22px;
      border-top: 13px solid transparent;
      border-bottom: 13px solid transparent;
      border-left: 18px solid var(--color-berry);
    }

    .card-body {
      padding: 24px;
    }

    .content-card h3 {
      margin: 10px 0 10px;
      font-size: 23px;
      line-height: 1.28;
      font-weight: 850;
      letter-spacing: -.03em;
    }

    .content-card p {
      color: var(--color-muted);
      margin: 0 0 18px;
      font-size: 15px;
    }

    .meta-line {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      color: #8a7f92;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .side-stack {
      display: grid;
      gap: 18px;
    }

    .mini-card {
      padding: 20px;
      display: grid;
      grid-template-columns: 52px 1fr;
      gap: 14px;
      align-items: start;
    }

    .mini-thumb {
      width: 52px;
      height: 52px;
      border-radius: 17px;
      background: linear-gradient(135deg, rgba(255,111,135,.88), rgba(123,44,255,.82));
      position: relative;
      flex: 0 0 auto;
    }

    .mini-thumb:after {
      content: "";
      position: absolute;
      left: 21px;
      top: 16px;
      border-top: 10px solid transparent;
      border-bottom: 10px solid transparent;
      border-left: 14px solid rgba(255,255,255,.9);
    }

    .mini-card h3 {
      font-size: 17px;
      margin: 2px 0 6px;
      font-weight: 850;
      line-height: 1.35;
    }

    .mini-card p {
      font-size: 13px;
      color: var(--color-muted);
      margin: 0;
      line-height: 1.58;
    }

    .process {
      background: rgba(255,255,255,.52);
      border-top: 1px solid rgba(82, 49, 93, .08);
      border-bottom: 1px solid rgba(82, 49, 93, .08);
    }

    .steps-grid {
      margin-top: 34px;
    }

    .step-card {
      padding: 24px;
      height: 100%;
      position: relative;
    }

    .step-no {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      background: var(--color-ink);
      color: #fff;
      font-weight: 900;
      margin-bottom: 18px;
      box-shadow: 0 10px 26px rgba(25,19,31,.14);
    }

    .step-card h3 {
      font-size: 19px;
      font-weight: 850;
      margin: 0 0 8px;
    }

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

    .accordion {
      background: transparent;
      margin-top: 32px;
    }

    .accordion-item {
      margin-bottom: 12px;
      border-radius: 20px;
      overflow: hidden;
      border: 1px solid var(--color-line);
      background: rgba(255,255,255,.78);
      box-shadow: var(--shadow-sm);
    }

    .accordion-title {
      border: 0 !important;
      color: var(--color-ink) !important;
      font-weight: 850;
      font-size: 16px;
      padding: 20px 52px 20px 22px;
      line-height: 1.5;
      background: transparent;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      background: rgba(201, 43, 112, .06);
      color: var(--color-berry) !important;
    }

    .accordion-title:before {
      right: 22px;
      color: var(--color-berry);
      font-size: 24px;
      margin-top: -13px;
    }

    .accordion-content {
      border: 0 !important;
      background: rgba(255,255,255,.62);
      color: var(--color-muted);
      padding: 0 22px 22px;
      line-height: 1.75;
    }

    .cta-panel {
      border-radius: 34px;
      background:
        linear-gradient(135deg, rgba(25,19,31,.96), rgba(74,23,111,.94)),
        radial-gradient(circle at 80% 20%, rgba(255,111,135,.28), transparent 30%);
      color: #fff;
      overflow: hidden;
      position: relative;
      padding: 34px;
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255,255,255,.16);
    }

    .cta-panel:before {
      content: "";
      position: absolute;
      width: 360px;
      height: 360px;
      right: -160px;
      top: -180px;
      background: rgba(255, 111, 135, .28);
      border-radius: 50%;
      filter: blur(12px);
    }

    .cta-panel h2 {
      font-size: clamp(28px, 3.2vw, 42px);
      font-weight: 900;
      letter-spacing: -.04em;
      line-height: 1.18;
      margin: 0 0 14px;
      position: relative;
      z-index: 1;
    }

    .cta-panel p {
      color: rgba(255,255,255,.72);
      margin: 0 0 24px;
      position: relative;
      z-index: 1;
    }

    .form-panel {
      padding: 24px;
      background: rgba(255,255,255,.9);
      position: relative;
      z-index: 1;
    }

    .form-panel h3 {
      font-size: 20px;
      font-weight: 850;
      margin: 0 0 16px;
      color: var(--color-ink);
    }

    .form-panel label {
      font-size: 13px;
      font-weight: 800;
      color: var(--color-muted);
      margin-bottom: 6px;
    }

    .form-note {
      color: var(--color-muted);
      font-size: 13px;
      margin-top: 10px;
    }

    .site-footer {
      background: #141019;
      color: rgba(255,255,255,.76);
      padding: 54px 0 28px;
      border-top: 1px solid rgba(255,255,255,.08);
    }

    .footer-brand .brand {
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-brand .brand-text span {
      color: rgba(255,255,255,.55);
    }

    .footer-text {
      color: rgba(255,255,255,.62);
      max-width: 420px;
      margin: 0;
      font-size: 14px;
    }

    .footer-title {
      color: #fff;
      font-size: 15px;
      font-weight: 850;
      margin: 0 0 14px;
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: rgba(255,255,255,.62);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: #fff;
    }

    .footer-bottom {
      margin-top: 34px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.1);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: rgba(255,255,255,.48);
      font-size: 13px;
    }

    .footer-bottom a {
      color: rgba(255,255,255,.62);
    }

    .footer-bottom a:hover {
      color: #fff;
    }

    @media screen and (max-width: 1024px) {
      .hero {
        padding-top: 64px;
      }

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

      .hero-panel {
        margin-top: 34px;
      }

      .intro-panel {
        margin-bottom: 20px;
      }
    }

    @media screen and (max-width: 768px) {
      .site-header {
        position: sticky;
      }

      .top-bar {
        min-height: 68px;
      }

      .top-bar-left {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
      }

      .menu-icon-wrap {
        display: inline-flex;
      }

      .top-bar-right {
        width: 100%;
      }

      .nav-menu {
        padding: 14px 0 18px;
        gap: 8px;
        border-top: 1px solid rgba(82, 49, 93, .1);
        margin-top: 10px;
      }

      .nav-menu li,
      .nav-menu a {
        width: 100%;
      }

      .nav-menu a:not(.nav-cta) {
        display: flex;
        min-height: 46px;
        align-items: center;
        padding: 12px 14px;
      }

      .nav-cta {
        margin: 8px 0 0;
        width: 100%;
      }

      .brand-text strong {
        font-size: 15px;
      }

      .brand-text span {
        display: none;
      }

      .section {
        padding: 60px 0;
      }

      .section-tight {
        padding: 48px 0;
      }

      .hero {
        padding: 48px 0 58px;
      }

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

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

      .btn-primary,
      .btn-secondary {
        width: 100%;
      }

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

      .play-block {
        min-height: 110px;
      }

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

      .stats-band,
      .cta-panel {
        padding: 24px;
        border-radius: 26px;
      }

      .featured-card {
        grid-template-rows: 180px 1fr;
        min-height: auto;
      }

      .mini-card {
        grid-template-columns: 46px 1fr;
      }

      .mini-thumb {
        width: 46px;
        height: 46px;
      }

      .footer-bottom {
        display: block;
      }

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

    @media screen and (max-width: 520px) {
      .grid-container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      .hero h1 {
        letter-spacing: -.045em;
      }

      .hero-panel {
        border-radius: 26px;
        padding: 12px;
      }

      .mock-screen {
        border-radius: 22px;
        padding: 14px;
        min-height: 0;
      }

      .rank-item {
        grid-template-columns: 30px 1fr;
      }

      .rank-item span {
        grid-column: 2;
      }

      .intro-panel,
      .entry-card,
      .content-card .card-body,
      .step-card,
      .form-panel {
        padding: 20px;
      }

      .tag-row {
        gap: 8px;
      }

      .tag {
        font-size: 12px;
      }
    }

/* roulang page: category1 */
:root {
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      --color-ink: #221924;
      --color-muted: #756a78;
      --color-soft: #fbf7f4;
      --color-paper: #fffdfb;
      --color-line: rgba(93, 66, 102, 0.16);
      --color-dark: #171019;
      --color-dark-2: #25152c;
      --color-purple: #783f8e;
      --color-purple-2: #a653b7;
      --color-berry: #d94f87;
      --color-coral: #ff8a6b;
      --color-orange: #ffb25f;
      --color-success: #3aa779;
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 26px;
      --radius-xl: 34px;
      --shadow-soft: 0 18px 52px rgba(49, 28, 56, 0.10);
      --shadow-card: 0 12px 32px rgba(49, 28, 56, 0.08);
      --shadow-hover: 0 20px 54px rgba(121, 63, 142, 0.18);
      --transition: 220ms ease;
      --container: 1220px;
      --section: 82px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-main);
      color: var(--color-ink);
      line-height: 1.72;
      background:
        radial-gradient(circle at 12% 4%, rgba(217, 79, 135, 0.13), transparent 28%),
        radial-gradient(circle at 88% 12%, rgba(120, 63, 142, 0.12), transparent 30%),
        linear-gradient(180deg, #fff9f4 0%, #fbf7f4 46%, #fffdfb 100%);
      overflow-x: hidden;
    }

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

    a:hover,
    a:focus {
      color: var(--color-berry);
    }

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

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

    button,
    a,
    input,
    select,
    textarea,
    summary {
      outline: none;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible,
    summary:focus-visible {
      box-shadow: 0 0 0 4px rgba(217, 79, 135, 0.22);
      border-color: rgba(217, 79, 135, 0.72) !important;
    }

    .grid-container {
      max-width: var(--container);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 253, 251, 0.92);
      border-bottom: 1px solid rgba(93, 66, 102, 0.12);
      backdrop-filter: blur(18px);
      box-shadow: 0 8px 28px rgba(41, 25, 47, 0.05);
    }

    .site-header .top-bar {
      padding: 0;
      min-height: 82px;
      background: transparent;
    }

    .site-header .grid-container {
      position: relative;
    }

    .top-bar-left,
    .top-bar-right {
      display: flex;
      align-items: center;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 13px;
      min-height: 54px;
    }

    .brand-mark {
      width: 46px;
      height: 46px;
      border-radius: 16px 20px 16px 22px;
      background:
        radial-gradient(circle at 34% 28%, rgba(255,255,255,0.92), transparent 18%),
        linear-gradient(135deg, var(--color-berry), var(--color-purple) 62%, var(--color-dark-2));
      position: relative;
      box-shadow: 0 12px 28px rgba(120, 63, 142, 0.24);
      flex: 0 0 auto;
    }

    .brand-mark::before {
      content: "";
      position: absolute;
      left: 17px;
      top: 14px;
      width: 0;
      height: 0;
      border-top: 9px solid transparent;
      border-bottom: 9px solid transparent;
      border-left: 14px solid rgba(255,255,255,0.94);
      filter: drop-shadow(0 2px 5px rgba(0,0,0,0.15));
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      right: -4px;
      bottom: 7px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--color-coral);
      box-shadow: 0 0 0 5px rgba(255, 138, 107, 0.16);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }

    .brand-text strong {
      font-size: 17px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--color-ink);
    }

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

    .nav-menu {
      gap: 8px;
      align-items: center;
    }

    .nav-menu a {
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      padding: 0 17px;
      border-radius: 999px;
      color: #4b3d50;
      font-size: 14px;
      font-weight: 700;
      border: 1px solid transparent;
    }

    .nav-menu a:hover {
      color: var(--color-purple);
      background: rgba(120, 63, 142, 0.07);
      border-color: rgba(120, 63, 142, 0.12);
    }

    .nav-menu a.active {
      color: var(--color-purple);
      background: rgba(120, 63, 142, 0.10);
      border-color: rgba(120, 63, 142, 0.18);
    }

    .nav-menu a.nav-cta {
      margin-left: 4px;
      color: #fff;
      background: linear-gradient(135deg, var(--color-berry), var(--color-purple));
      box-shadow: 0 12px 26px rgba(120, 63, 142, 0.24);
      border-color: rgba(255,255,255,0.28);
    }

    .nav-menu a.nav-cta:hover {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(120, 63, 142, 0.30);
    }

    .menu-icon-wrap {
      margin-left: auto;
      width: 46px;
      height: 46px;
      border: 1px solid rgba(93, 66, 102, 0.16);
      border-radius: 16px;
      background: rgba(255,255,255,0.72);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
    }

    .menu-icon {
      position: relative;
      width: 20px;
      height: 2px;
      background: var(--color-ink);
      display: inline-block;
      border-radius: 999px;
    }

    .menu-icon::before,
    .menu-icon::after {
      content: "";
      position: absolute;
      left: 0;
      width: 20px;
      height: 2px;
      background: var(--color-ink);
      border-radius: 999px;
    }

    .menu-icon::before {
      top: -7px;
    }

    .menu-icon::after {
      top: 7px;
    }

    main {
      position: relative;
    }

    .section {
      padding: var(--section) 0;
    }

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

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 13px;
      margin-bottom: 18px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
      color: var(--color-purple);
      background: rgba(120, 63, 142, 0.09);
      border: 1px solid rgba(120, 63, 142, 0.14);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--color-berry), var(--color-orange));
      box-shadow: 0 0 0 5px rgba(217, 79, 135, 0.12);
    }

    .page-hero {
      padding: 62px 0 48px;
      position: relative;
      overflow: hidden;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 20px auto auto 50%;
      width: 720px;
      height: 420px;
      transform: translateX(-10%);
      background:
        radial-gradient(circle at 25% 30%, rgba(255, 138, 107, 0.18), transparent 24%),
        radial-gradient(circle at 68% 34%, rgba(120, 63, 142, 0.17), transparent 30%);
      filter: blur(4px);
      pointer-events: none;
    }

    .breadcrumb-wrap {
      position: relative;
      z-index: 1;
      margin-bottom: 24px;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin: 0;
      padding: 0;
      list-style: none;
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 700;
    }

    .breadcrumb li {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .breadcrumb li:not(:last-child)::after {
      content: "›";
      color: rgba(117, 106, 120, 0.58);
      font-size: 18px;
      line-height: 1;
    }

    .breadcrumb a {
      color: #5e5064;
      border-bottom: 1px solid transparent;
    }

    .breadcrumb a:hover {
      color: var(--color-purple);
      border-color: rgba(120, 63, 142, 0.24);
    }

    .hero-copy {
      position: relative;
      z-index: 1;
      padding-right: 28px;
    }

    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }

    h1 {
      max-width: 760px;
      font-size: clamp(34px, 5.5vw, 60px);
      line-height: 1.1;
      letter-spacing: -0.055em;
      font-weight: 800;
      color: var(--color-ink);
      margin-bottom: 20px;
    }

    h1 .accent {
      color: var(--color-purple);
      text-decoration: underline;
      text-decoration-color: rgba(217, 79, 135, 0.28);
      text-underline-offset: 8px;
      text-decoration-thickness: 9px;
    }

    .hero-lead {
      max-width: 700px;
      font-size: 17px;
      color: #5d5361;
      line-height: 1.88;
      margin-bottom: 28px;
    }

    .hero-actions,
    .cta-actions,
    .card-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .btn {
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 0 20px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-size: 14px;
      font-weight: 800;
      cursor: pointer;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-berry), var(--color-purple));
      box-shadow: 0 16px 34px rgba(120, 63, 142, 0.26);
    }

    .btn-primary:hover {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 20px 48px rgba(120, 63, 142, 0.32);
    }

    .btn-secondary {
      color: var(--color-purple);
      background: rgba(255, 255, 255, 0.66);
      border-color: rgba(120, 63, 142, 0.18);
    }

    .btn-secondary:hover {
      color: var(--color-purple);
      background: rgba(120, 63, 142, 0.08);
      transform: translateY(-2px);
    }

    .btn-small {
      min-height: 38px;
      padding: 0 15px;
      font-size: 13px;
    }

    .hero-panel {
      position: relative;
      z-index: 1;
      padding: 22px;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(145deg, rgba(255,255,255,0.72), rgba(255,255,255,0.48)),
        radial-gradient(circle at 20% 12%, rgba(255, 138, 107, 0.18), transparent 28%);
      border: 1px solid rgba(120, 63, 142, 0.16);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(120,63,142,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120,63,142,0.06) 1px, transparent 1px);
      background-size: 34px 34px;
      mask-image: linear-gradient(135deg, rgba(0,0,0,0.88), transparent 78%);
      pointer-events: none;
    }

    .preview-screen {
      position: relative;
      border-radius: 28px;
      padding: 22px;
      color: #fff;
      background:
        radial-gradient(circle at 18% 20%, rgba(255, 138, 107, 0.34), transparent 22%),
        radial-gradient(circle at 84% 14%, rgba(217, 79, 135, 0.32), transparent 28%),
        linear-gradient(145deg, #211327, #151018 66%);
      box-shadow: 0 20px 44px rgba(23,16,25,0.28);
      overflow: hidden;
    }

    .preview-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 20px;
    }

    .live-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.12);
      border: 1px solid rgba(255,255,255,0.16);
      font-size: 12px;
      font-weight: 800;
      color: rgba(255,255,255,0.88);
    }

    .live-pill i {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-coral);
      box-shadow: 0 0 0 5px rgba(255, 138, 107, 0.18);
    }

    .preview-title {
      font-size: 23px;
      font-weight: 800;
      line-height: 1.32;
      margin-bottom: 14px;
    }

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

    .preview-list li {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.12);
    }

    .preview-list strong {
      display: block;
      color: #fff;
      font-size: 14px;
      line-height: 1.35;
    }

    .preview-list span {
      display: block;
      margin-top: 4px;
      color: rgba(255,255,255,0.58);
      font-size: 12px;
    }

    .status-dot {
      width: 36px;
      height: 36px;
      border-radius: 12px;
      flex: 0 0 auto;
      background:
        linear-gradient(135deg, rgba(255,255,255,0.22), rgba(255,255,255,0.08)),
        linear-gradient(135deg, var(--color-coral), var(--color-berry));
      position: relative;
    }

    .status-dot::after {
      content: "";
      position: absolute;
      left: 14px;
      top: 10px;
      width: 0;
      height: 0;
      border-top: 8px solid transparent;
      border-bottom: 8px solid transparent;
      border-left: 11px solid rgba(255,255,255,0.9);
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .tag,
    .filter-tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 0 14px;
      border-radius: 999px;
      color: #5a405e;
      background: rgba(255,255,255,0.66);
      border: 1px solid rgba(120, 63, 142, 0.14);
      font-size: 13px;
      font-weight: 800;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
    }

    .filter-tag:hover,
    .filter-tag.is-active {
      color: #fff;
      background: linear-gradient(135deg, var(--color-berry), var(--color-purple));
      border-color: transparent;
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(120, 63, 142, 0.22);
    }

    .section-head {
      margin-bottom: 30px;
    }

    .section-head h2 {
      max-width: 760px;
      margin-bottom: 12px;
      font-size: clamp(28px, 4vw, 40px);
      line-height: 1.18;
      letter-spacing: -0.04em;
      font-weight: 800;
      color: var(--color-ink);
    }

    .section-head p {
      max-width: 760px;
      margin-bottom: 0;
      color: var(--color-muted);
      font-size: 16px;
      line-height: 1.86;
    }

    .filter-panel {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,0.72);
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-card);
    }

    .filter-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 16px;
    }

    .filter-title h2 {
      margin: 0;
      font-size: 22px;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .filter-title span {
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 700;
    }

    .content-layout {
      align-items: flex-start;
    }

    .featured-card {
      display: grid;
      grid-template-columns: minmax(0, 0.96fr) minmax(260px, 0.64fr);
      gap: 22px;
      padding: 26px;
      margin-bottom: 18px;
      border-radius: var(--radius-xl);
      background: var(--color-paper);
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-card);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      overflow: hidden;
    }

    .featured-card:hover {
      transform: translateY(-3px);
      border-color: rgba(217, 79, 135, 0.28);
      box-shadow: var(--shadow-hover);
    }

    .abstract-cover {
      min-height: 260px;
      border-radius: 26px;
      background:
        radial-gradient(circle at 18% 20%, rgba(255,255,255,0.38), transparent 16%),
        radial-gradient(circle at 76% 28%, rgba(255, 178, 95, 0.35), transparent 22%),
        linear-gradient(145deg, #2a1732 0%, #75378b 52%, #df5b8d 100%);
      position: relative;
      overflow: hidden;
    }

    .abstract-cover::before {
      content: "";
      position: absolute;
      inset: 18px;
      border: 1px solid rgba(255,255,255,0.18);
      border-radius: 22px;
    }

    .abstract-cover::after {
      content: "精选";
      position: absolute;
      left: 22px;
      bottom: 22px;
      padding: 8px 14px;
      border-radius: 999px;
      color: #fff;
      font-size: 13px;
      font-weight: 800;
      background: rgba(23,16,25,0.35);
      border: 1px solid rgba(255,255,255,0.22);
      backdrop-filter: blur(10px);
    }

    .card-kicker {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      margin-bottom: 12px;
      color: var(--color-purple);
      font-size: 13px;
      font-weight: 800;
    }

    .card-kicker::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-berry);
    }

    .featured-card h2 {
      font-size: clamp(25px, 3.2vw, 34px);
      line-height: 1.2;
      letter-spacing: -0.035em;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .featured-card p {
      color: var(--color-muted);
      margin-bottom: 20px;
    }

    .meta-line {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
      color: #6b5d70;
      font-size: 13px;
      font-weight: 700;
    }

    .meta-line span {
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(120, 63, 142, 0.07);
      border: 1px solid rgba(120, 63, 142, 0.10);
    }

    .entry-list {
      display: grid;
      gap: 14px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .entry-card {
      display: grid;
      grid-template-columns: 52px minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255,255,255,0.76);
      border: 1px solid var(--color-line);
      box-shadow: 0 10px 28px rgba(49, 28, 56, 0.05);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    }

    .entry-card:hover {
      transform: translateY(-2px);
      border-color: rgba(217, 79, 135, 0.30);
      background: #fff;
      box-shadow: var(--shadow-card);
    }

    .entry-rank {
      width: 52px;
      height: 52px;
      border-radius: 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      background: linear-gradient(135deg, var(--color-purple), var(--color-dark-2));
      box-shadow: 0 12px 22px rgba(120, 63, 142, 0.18);
    }

    .entry-card h3 {
      margin-bottom: 5px;
      font-size: 19px;
      line-height: 1.35;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .entry-card p {
      margin-bottom: 8px;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .entry-card .meta-line {
      margin-bottom: 0;
    }

    .side-stack {
      display: grid;
      gap: 16px;
      position: sticky;
      top: 106px;
    }

    .side-card {
      padding: 22px;
      border-radius: 24px;
      background: rgba(255,255,255,0.76);
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-card);
    }

    .side-card.dark {
      color: #fff;
      background:
        radial-gradient(circle at 18% 10%, rgba(255, 138, 107, 0.28), transparent 32%),
        linear-gradient(145deg, #24142b, #151018 76%);
      border-color: rgba(255,255,255,0.12);
    }

    .side-card h2,
    .side-card h3 {
      margin-bottom: 12px;
      font-size: 21px;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .side-card p {
      margin-bottom: 16px;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.72;
    }

    .side-card.dark p {
      color: rgba(255,255,255,0.68);
    }

    .hot-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
    }

    .hot-tags a,
    .hot-tags span {
      padding: 7px 11px;
      border-radius: 999px;
      color: #5c4662;
      background: rgba(120, 63, 142, 0.08);
      border: 1px solid rgba(120, 63, 142, 0.12);
      font-size: 12px;
      font-weight: 800;
    }

    .side-card.dark .hot-tags span {
      color: rgba(255,255,255,0.88);
      background: rgba(255,255,255,0.10);
      border-color: rgba(255,255,255,0.14);
    }

    .tip-list {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 11px;
    }

    .tip-list li {
      display: flex;
      gap: 10px;
      color: #5f5364;
      font-size: 14px;
      line-height: 1.58;
    }

    .tip-list li::before {
      content: "";
      margin-top: 8px;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--color-coral);
      flex: 0 0 auto;
    }

    .dark-band {
      position: relative;
      overflow: hidden;
      color: #fff;
      background:
        radial-gradient(circle at 15% 20%, rgba(255, 138, 107, 0.24), transparent 24%),
        radial-gradient(circle at 82% 10%, rgba(217, 79, 135, 0.24), transparent 30%),
        linear-gradient(145deg, #211327, #151018 76%);
    }

    .dark-band::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
      background-size: 38px 38px;
      opacity: 0.55;
      pointer-events: none;
    }

    .dark-band .grid-container {
      position: relative;
      z-index: 1;
    }

    .dark-band .section-head h2 {
      color: #fff;
    }

    .dark-band .section-head p {
      color: rgba(255,255,255,0.68);
    }

    .stat-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .stat-card {
      padding: 22px;
      border-radius: 24px;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.12);
      backdrop-filter: blur(10px);
    }

    .stat-number {
      display: block;
      margin-bottom: 6px;
      color: #fff;
      font-size: 34px;
      line-height: 1;
      font-weight: 900;
      letter-spacing: -0.04em;
    }

    .stat-card p {
      margin-bottom: 0;
      color: rgba(255,255,255,0.66);
      font-size: 14px;
      line-height: 1.6;
    }

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

    .process-card {
      position: relative;
      padding: 24px;
      border-radius: 24px;
      background: rgba(255,255,255,0.74);
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-card);
      counter-increment: step;
      transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }

    .process-card:hover {
      transform: translateY(-3px);
      border-color: rgba(217, 79, 135, 0.28);
      box-shadow: var(--shadow-hover);
    }

    .process-card::before {
      content: "0" counter(step);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      margin-bottom: 18px;
      border-radius: 16px;
      color: #fff;
      font-weight: 900;
      background: linear-gradient(135deg, var(--color-berry), var(--color-purple));
      box-shadow: 0 12px 24px rgba(120, 63, 142, 0.20);
    }

    .process-card h3 {
      font-size: 19px;
      font-weight: 800;
      margin-bottom: 9px;
    }

    .process-card p {
      margin-bottom: 0;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.72;
    }

    .accordion {
      background: transparent;
    }

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

    .accordion-item {
      border-radius: 22px;
      overflow: hidden;
      border: 1px solid var(--color-line);
      background: rgba(255,255,255,0.76);
      box-shadow: 0 10px 28px rgba(49, 28, 56, 0.05);
    }

    .accordion-title {
      border: 0 !important;
      padding: 20px 54px 20px 22px;
      color: var(--color-ink);
      font-size: 16px;
      font-weight: 800;
      line-height: 1.45;
      background: transparent;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      color: var(--color-purple);
      background: rgba(120, 63, 142, 0.05);
    }

    .accordion-title::before {
      right: 22px;
      margin-top: -12px;
      font-size: 24px;
      color: var(--color-berry);
    }

    .accordion-content {
      border: 0 !important;
      padding: 0 22px 20px;
      background: transparent;
      color: var(--color-muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: 34px;
      border-radius: 34px;
      background:
        radial-gradient(circle at 12% 12%, rgba(255, 138, 107, 0.18), transparent 28%),
        linear-gradient(145deg, rgba(255,255,255,0.88), rgba(255,255,255,0.66));
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-soft);
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      right: -120px;
      top: -120px;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: rgba(120, 63, 142, 0.10);
      pointer-events: none;
    }

    .cta-copy {
      position: relative;
      z-index: 1;
    }

    .cta-copy h2 {
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.16;
      letter-spacing: -0.04em;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .cta-copy p {
      max-width: 640px;
      color: var(--color-muted);
      margin-bottom: 24px;
    }

    .feedback-form {
      position: relative;
      z-index: 1;
      padding: 22px;
      border-radius: 26px;
      background: rgba(255,255,255,0.78);
      border: 1px solid rgba(120, 63, 142, 0.14);
      box-shadow: 0 12px 32px rgba(49, 28, 56, 0.07);
    }

    .feedback-form label {
      margin-bottom: 12px;
      color: #46354c;
      font-size: 13px;
      font-weight: 800;
    }

    .feedback-form input,
    .feedback-form select,
    .feedback-form textarea {
      margin-top: 7px;
      min-height: 46px;
      border-radius: 16px;
      border: 1px solid rgba(93, 66, 102, 0.16);
      background: #fff;
      box-shadow: none;
      color: var(--color-ink);
      font-size: 14px;
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    .feedback-form textarea {
      min-height: 108px;
      resize: vertical;
    }

    .feedback-form input::placeholder,
    .feedback-form textarea::placeholder {
      color: rgba(117, 106, 120, 0.62);
    }

    .form-note {
      margin: 8px 0 0;
      color: var(--color-muted);
      font-size: 12px;
      line-height: 1.6;
    }

    .site-footer {
      padding: 56px 0 26px;
      color: rgba(255,255,255,0.78);
      background:
        radial-gradient(circle at 14% 0%, rgba(217, 79, 135, 0.18), transparent 26%),
        linear-gradient(145deg, #201227, #120e15 74%);
    }

    .site-footer .brand-text strong {
      color: #fff;
    }

    .site-footer .brand-text span,
    .footer-text {
      color: rgba(255,255,255,0.62);
    }

    .footer-text {
      max-width: 420px;
      margin: 18px 0 0;
      font-size: 14px;
      line-height: 1.85;
    }

    .footer-title {
      margin: 8px 0 16px;
      color: #fff;
      font-size: 15px;
      font-weight: 800;
    }

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

    .footer-links a {
      color: rgba(255,255,255,0.62);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: #fff;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      margin-top: 42px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,0.12);
      color: rgba(255,255,255,0.52);
      font-size: 13px;
    }

    @media screen and (max-width: 1024px) {
      :root {
        --section: 68px;
      }

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

      .abstract-cover {
        min-height: 210px;
      }

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

      .side-stack {
        position: static;
        margin-top: 22px;
      }

      .hero-copy {
        padding-right: 0;
      }
    }

    @media screen and (max-width: 767px) {
      .site-header .top-bar {
        min-height: 68px;
      }

      .site-header .top-bar-left {
        width: 100%;
        justify-content: space-between;
      }

      #main-navigation {
        padding: 0 0 16px;
        min-height: auto;
        border-top: 1px solid rgba(93, 66, 102, 0.10);
      }

      .nav-menu {
        width: 100%;
        padding-top: 14px;
        gap: 8px;
      }

      .nav-menu li,
      .nav-menu a {
        width: 100%;
      }

      .nav-menu a {
        justify-content: center;
        min-height: 46px;
        background: rgba(120, 63, 142, 0.06);
      }

      .nav-menu a.nav-cta {
        margin-left: 0;
      }

      .page-hero {
        padding: 42px 0 32px;
      }

      .hero-panel {
        margin-top: 28px;
      }

      .filter-title {
        align-items: flex-start;
        flex-direction: column;
      }

      .entry-card {
        grid-template-columns: 46px minmax(0, 1fr);
      }

      .entry-card .card-actions {
        grid-column: 1 / -1;
        justify-content: flex-start;
      }

      .entry-rank {
        width: 46px;
        height: 46px;
        border-radius: 15px;
      }

      .cta-panel {
        padding: 24px;
      }

      .feedback-form {
        margin-top: 24px;
      }

      .footer-brand {
        margin-bottom: 26px;
      }

      .site-footer .cell {
        margin-bottom: 20px;
      }
    }

    @media screen and (max-width: 520px) {
      :root {
        --section: 54px;
      }

      body {
        line-height: 1.68;
      }

      .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: 15px 18px 15px 20px;
      }

      .brand-text strong {
        font-size: 15px;
      }

      .brand-text span {
        font-size: 11px;
      }

      .hero-lead {
        font-size: 15px;
      }

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

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

      .preview-screen,
      .filter-panel,
      .featured-card,
      .side-card,
      .process-card {
        border-radius: 22px;
        padding: 18px;
      }

      .abstract-cover {
        min-height: 180px;
        border-radius: 20px;
      }

      .stat-grid,
      .process-grid {
        grid-template-columns: 1fr;
      }

      .stat-number {
        font-size: 30px;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }