/* roulang page: index */
:root {
      --coral: #E94B35;
      --coral-dark: #C83725;
      --sage: #6E8F72;
      --sage-soft: #E4ECDF;
      --wood: #B8784E;
      --lemon: #FFD166;
      --charcoal: #24211F;
      --muted: #6F6760;
      --plaster: #F7F1E8;
      --linen: #EFE6D8;
      --cream: #FFF9F0;
      --white: #FFFFFF;
      --border: rgba(36, 33, 31, .10);
      --border-strong: rgba(36, 33, 31, .18);
      --shadow: 0 18px 50px rgba(36, 33, 31, .08);
      --shadow-hover: 0 22px 58px rgba(36, 33, 31, .13);
      --radius-sm: 12px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --container: 1200px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      color: var(--charcoal);
      background:
        linear-gradient(90deg, rgba(36,33,31,.035) 1px, transparent 1px),
        linear-gradient(180deg, rgba(36,33,31,.028) 1px, transparent 1px),
        var(--plaster);
      background-size: 44px 44px;
      line-height: 1.7;
      letter-spacing: 0;
      overflow-x: hidden;
    }

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

    a:hover {
      color: var(--coral);
    }

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

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

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1030;
      background: rgba(255, 249, 240, .93);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }

    .navbar {
      min-height: 72px;
      padding: 10px 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: var(--coral);
      color: var(--cream);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 24px rgba(233, 75, 53, .24);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "5";
      position: absolute;
      right: -6px;
      top: -7px;
      min-width: 18px;
      height: 18px;
      border-radius: 999px;
      background: var(--lemon);
      color: var(--charcoal);
      font-size: 11px;
      font-weight: 900;
      line-height: 18px;
      text-align: center;
      border: 2px solid var(--cream);
    }

    .navbar-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      color: var(--charcoal);
      white-space: normal;
      max-width: 280px;
      line-height: 1.2;
    }

    .navbar-toggler {
      border: 1px solid var(--border);
      border-radius: 999px;
      padding: 8px 10px;
      box-shadow: none;
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 4px rgba(233, 75, 53, .16);
    }

    .nav-link {
      color: var(--muted);
      font-weight: 700;
      padding: 10px 14px !important;
      border-radius: 999px;
    }

    .nav-link:hover,
    .nav-link:focus,
    .nav-link.active {
      color: var(--charcoal);
      background: var(--linen);
    }

    .nav-search {
      position: relative;
      min-width: 248px;
    }

    .nav-search i {
      position: absolute;
      left: 15px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--wood);
      pointer-events: none;
    }

    .nav-search .form-control {
      border: 1px solid transparent;
      background: var(--linen);
      border-radius: 999px;
      padding: 10px 14px 10px 40px;
      color: var(--charcoal);
      min-height: 44px;
    }

    .nav-search .form-control:focus {
      background: var(--white);
      border-color: rgba(233, 75, 53, .55);
      box-shadow: 0 0 0 4px rgba(233, 75, 53, .12);
    }

    .btn {
      border-radius: 999px;
      font-weight: 800;
      padding: 11px 20px;
      border-width: 1px;
      transition: var(--ease);
      line-height: 1.2;
    }

    .btn-primary-custom {
      background: var(--coral);
      color: var(--cream);
      border-color: var(--coral);
      box-shadow: 0 14px 30px rgba(233, 75, 53, .22);
    }

    .btn-primary-custom:hover,
    .btn-primary-custom:focus {
      background: var(--coral-dark);
      border-color: var(--coral-dark);
      color: var(--cream);
      transform: translateY(-1px);
      box-shadow: 0 18px 36px rgba(233, 75, 53, .28);
    }

    .btn-secondary-custom {
      background: rgba(255, 249, 240, .88);
      color: var(--charcoal);
      border-color: var(--border-strong);
    }

    .btn-secondary-custom:hover,
    .btn-secondary-custom:focus {
      background: var(--sage-soft);
      border-color: rgba(110, 143, 114, .55);
      color: var(--charcoal);
      transform: translateY(-1px);
    }

    .btn-wood {
      background: var(--wood);
      border-color: var(--wood);
      color: var(--cream);
    }

    .btn-wood:hover,
    .btn-wood:focus {
      background: #9F633E;
      border-color: #9F633E;
      color: var(--cream);
      transform: translateY(-1px);
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 88px 0;
    }

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

    .section-sage {
      background: var(--sage-soft);
    }

    .section-linen {
      background: var(--linen);
    }

    .section-title {
      max-width: 760px;
      margin-bottom: 34px;
    }

    .section-title.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 12px;
      border-radius: 999px;
      background: rgba(233, 75, 53, .10);
      color: var(--coral-dark);
      font-weight: 900;
      font-size: 14px;
      margin-bottom: 16px;
    }

    .section-title h2 {
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.18;
      font-weight: 950;
      margin: 0 0 16px;
      color: var(--charcoal);
    }

    .section-title p {
      margin: 0;
      color: var(--muted);
      font-size: 17px;
      max-width: 720px;
    }

    .hero {
      position: relative;
      padding: 34px 0 74px;
      min-height: calc(100vh - 72px);
      display: flex;
      align-items: stretch;
      background:
        linear-gradient(135deg, rgba(233,75,53,.18) 0%, rgba(233,75,53,0) 34%),
        linear-gradient(90deg, transparent 0%, transparent 62%, rgba(110,143,114,.22) 62%, rgba(110,143,114,.22) 100%),
        var(--plaster);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: auto -8vw 0 auto;
      width: 52vw;
      height: 58%;
      background: var(--coral);
      clip-path: polygon(28% 0, 100% 14%, 100% 100%, 0 100%);
      opacity: .10;
      pointer-events: none;
    }

    .hero-stage {
      position: relative;
      border-radius: 32px;
      overflow: hidden;
      border: 1px solid var(--border);
      min-height: 560px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.64), rgba(255,249,240,.72)),
        radial-gradient(circle at 82% 18%, rgba(255,209,102,.36), transparent 32%),
        var(--cream);
      box-shadow: var(--shadow);
    }

    .hero-poster {
      min-height: 560px;
      padding: clamp(28px, 5vw, 62px);
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
      gap: 34px;
      align-items: center;
      position: relative;
    }

    .hero-poster::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 128px;
      background: linear-gradient(90deg, var(--sage) 0 42%, var(--wood) 42% 70%, var(--lemon) 70% 100%);
      opacity: .18;
      pointer-events: none;
    }

    .series-nav {
      position: relative;
      z-index: 2;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 26px;
    }

    .series-nav a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border-radius: 999px;
      padding: 8px 13px;
      background: rgba(255, 249, 240, .84);
      border: 1px solid var(--border);
      font-weight: 800;
      color: var(--charcoal);
    }

    .series-nav a:hover {
      border-color: rgba(233, 75, 53, .38);
      background: #fff;
      transform: translateY(-1px);
    }

    .hero h1 {
      position: relative;
      z-index: 2;
      font-size: clamp(36px, 5.4vw, 62px);
      line-height: 1.08;
      font-weight: 950;
      margin: 0 0 20px;
      color: var(--charcoal);
      max-width: 760px;
    }

    .hero-copy {
      position: relative;
      z-index: 2;
      font-size: 18px;
      color: var(--muted);
      max-width: 650px;
      margin-bottom: 26px;
    }

    .hero-actions {
      position: relative;
      z-index: 2;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 28px;
    }

    .hero-metrics {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 650px;
    }

    .metric-tile {
      background: rgba(255,249,240,.78);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 16px;
    }

    .metric-tile strong {
      display: block;
      font-size: 24px;
      line-height: 1.1;
      color: var(--coral-dark);
      font-weight: 950;
      margin-bottom: 6px;
    }

    .metric-tile span {
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
    }

    .control-panel {
      position: relative;
      z-index: 2;
      background: rgba(255,249,240,.88);
      border: 1px solid var(--border);
      border-radius: 28px;
      padding: 22px;
      box-shadow: 0 16px 46px rgba(36,33,31,.08);
    }

    .limited-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
      border-radius: 20px;
      background: var(--lemon);
      color: var(--charcoal);
      padding: 15px 16px;
      margin-bottom: 16px;
      border: 1px solid rgba(36,33,31,.10);
    }

    .limited-bar .status-dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--coral);
      box-shadow: 0 0 0 5px rgba(233,75,53,.15);
      flex: 0 0 auto;
    }

    .limited-bar strong {
      font-weight: 950;
    }

    .countdown {
      display: inline-flex;
      gap: 6px;
      align-items: center;
      font-weight: 950;
      white-space: nowrap;
    }

    .entry-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .entry-card {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      min-height: 118px;
      padding: 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: var(--white);
      transition: var(--ease);
    }

    .entry-card:hover {
      border-color: rgba(233,75,53,.32);
      transform: translateY(-3px);
      box-shadow: var(--shadow);
    }

    .entry-icon {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(233,75,53,.11);
      color: var(--coral);
      flex: 0 0 auto;
      font-size: 18px;
    }

    .entry-card h3 {
      font-size: 16px;
      font-weight: 950;
      margin: 0 0 4px;
    }

    .entry-card p {
      font-size: 14px;
      color: var(--muted);
      margin: 0 0 8px;
      line-height: 1.5;
    }

    .badge-soft {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 5px 10px;
      font-size: 12px;
      font-weight: 900;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .badge-coral {
      background: rgba(233,75,53,.12);
      color: var(--coral-dark);
      border-color: rgba(233,75,53,.16);
    }

    .badge-sage {
      background: rgba(110,143,114,.15);
      color: #48664C;
      border-color: rgba(110,143,114,.18);
    }

    .badge-wood {
      background: rgba(184,120,78,.15);
      color: #815030;
      border-color: rgba(184,120,78,.18);
    }

    .badge-lemon {
      background: rgba(255,209,102,.45);
      color: #5E4710;
      border-color: rgba(36,33,31,.08);
    }

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

    .timeline-wrap::before {
      content: "";
      position: absolute;
      left: 4%;
      right: 4%;
      top: 42px;
      height: 2px;
      background: rgba(110,143,114,.35);
    }

    .timeline-card {
      position: relative;
      background: var(--cream);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow);
      transition: var(--ease);
    }

    .timeline-card:hover {
      transform: translateY(-3px);
      border-color: rgba(110,143,114,.38);
      box-shadow: var(--shadow-hover);
    }

    .timeline-num {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--coral);
      color: var(--cream);
      font-weight: 950;
      margin-bottom: 18px;
      position: relative;
      z-index: 2;
    }

    .timeline-card h3 {
      font-size: 19px;
      font-weight: 950;
      margin: 10px 0 8px;
    }

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

    .highlight-grid {
      display: grid;
      grid-template-columns: 1.25fr .75fr .75fr;
      grid-template-rows: auto auto;
      gap: 18px;
    }

    .feature-card {
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: var(--cream);
      padding: 24px;
      box-shadow: var(--shadow);
      transition: var(--ease);
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: "";
      position: absolute;
      inset: 0 0 auto 0;
      height: 8px;
      background: var(--sage);
    }

    .feature-card:hover {
      transform: translateY(-3px);
      border-color: rgba(233,75,53,.28);
      box-shadow: var(--shadow-hover);
    }

    .feature-card.large {
      grid-row: span 2;
      min-height: 360px;
      background:
        linear-gradient(140deg, rgba(233,75,53,.10), transparent 36%),
        var(--cream);
    }

    .feature-card.large::before {
      background: var(--coral);
      height: 10px;
    }

    .feature-card h3 {
      font-size: 22px;
      font-weight: 950;
      margin: 16px 0 12px;
    }

    .feature-card.large h3 {
      font-size: 30px;
      max-width: 420px;
    }

    .feature-card p {
      color: var(--muted);
      margin: 0;
    }

    .feature-list {
      list-style: none;
      padding: 0;
      margin: 24px 0 0;
      display: grid;
      gap: 12px;
    }

    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
    }

    .feature-list i {
      color: var(--coral);
      margin-top: 3px;
    }

    .plan-row {
      align-items: stretch;
      margin-top: 8px;
    }

    .plan-card {
      height: 100%;
      border: 1px solid var(--border);
      border-radius: 22px;
      background: var(--cream);
      padding: 28px;
      box-shadow: var(--shadow);
      transition: var(--ease);
      position: relative;
      overflow: hidden;
    }

    .plan-card:hover {
      transform: translateY(-4px);
      border-color: rgba(233,75,53,.32);
      box-shadow: var(--shadow-hover);
    }

    .plan-card.featured {
      transform: translateY(-18px);
      border-color: rgba(233,75,53,.32);
      box-shadow: 0 24px 64px rgba(233,75,53,.16);
    }

    .plan-card.featured:hover {
      transform: translateY(-22px);
    }

    .plan-card.featured::before {
      content: "";
      position: absolute;
      inset: 0 0 auto 0;
      height: 9px;
      background: var(--coral);
    }

    .corner-badge {
      position: absolute;
      right: 18px;
      top: 18px;
      background: var(--lemon);
      color: var(--charcoal);
      border-radius: 999px;
      padding: 6px 11px;
      font-size: 12px;
      font-weight: 950;
    }

    .plan-card h3 {
      font-size: 24px;
      font-weight: 950;
      margin: 22px 0 8px;
    }

    .plan-card .fit {
      color: var(--muted);
      min-height: 54px;
      margin-bottom: 18px;
    }

    .plan-list {
      padding: 0;
      margin: 0 0 22px;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .plan-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--muted);
    }

    .plan-list i {
      color: var(--sage);
      margin-top: 3px;
    }

    .notice-alert {
      border: 1px solid rgba(233,75,53,.18);
      background: rgba(255,209,102,.34);
      border-radius: 18px;
      color: var(--charcoal);
      padding: 18px 20px;
      display: flex;
      gap: 12px;
      align-items: flex-start;
      margin-top: 36px;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.5fr) minmax(280px, .75fr);
      gap: 22px;
    }

    .news-list,
    .side-panel {
      background: var(--cream);
      border: 1px solid var(--border);
      border-radius: 22px;
      box-shadow: var(--shadow);
      padding: 18px;
    }

    .news-item {
      display: grid;
      grid-template-columns: 96px minmax(0, 1fr) auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: 16px;
      border: 1px solid transparent;
      transition: var(--ease);
    }

    .news-item + .news-item {
      border-top: 1px solid var(--border);
      border-radius: 0;
    }

    .news-item:hover {
      background: var(--plaster);
      border-color: rgba(233,75,53,.16);
    }

    .date-block {
      border-radius: 14px;
      background: rgba(110,143,114,.14);
      color: #49684E;
      padding: 12px;
      text-align: center;
      font-weight: 950;
    }

    .news-item h3 {
      font-size: 18px;
      margin: 0 0 6px;
      font-weight: 950;
    }

    .news-item p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .side-panel h3 {
      font-size: 21px;
      font-weight: 950;
      margin-bottom: 14px;
    }

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

    .check-stack li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--muted);
      padding: 12px;
      border-radius: 14px;
      background: rgba(239,230,216,.58);
    }

    .check-stack i {
      color: var(--coral);
      margin-top: 3px;
    }

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

    .proof-item {
      background: rgba(255,249,240,.82);
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 18px;
      display: flex;
      gap: 12px;
      align-items: flex-start;
      transition: var(--ease);
    }

    .proof-item:hover {
      transform: translateY(-2px);
      border-color: rgba(110,143,114,.35);
      background: var(--cream);
    }

    .proof-item i {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(184,120,78,.14);
      color: var(--wood);
      flex: 0 0 auto;
    }

    .proof-item strong {
      display: block;
      font-weight: 950;
      margin-bottom: 2px;
    }

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

    .cta-band {
      background:
        linear-gradient(120deg, rgba(233,75,53,.92), rgba(184,120,78,.88)),
        var(--coral);
      color: var(--cream);
      position: relative;
    }

    .cta-band::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(255,249,240,.09) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255,249,240,.08) 1px, transparent 1px);
      background-size: 38px 38px;
      pointer-events: none;
    }

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

    .lead-form-card {
      background: var(--cream);
      color: var(--charcoal);
      border: 1px solid rgba(255,249,240,.45);
      border-radius: 26px;
      padding: 28px;
      box-shadow: 0 20px 60px rgba(36,33,31,.18);
    }

    .form-label {
      font-weight: 850;
      color: var(--charcoal);
      margin-bottom: 8px;
    }

    .form-control,
    .form-select {
      border-radius: 14px;
      border: 1px solid var(--border);
      background: var(--plaster);
      padding: 12px 14px;
      color: var(--charcoal);
    }

    .form-control:focus,
    .form-select:focus {
      border-color: rgba(233,75,53,.58);
      box-shadow: 0 0 0 4px rgba(233,75,53,.13);
      background: var(--white);
    }

    .form-check-input {
      border-color: rgba(36,33,31,.28);
    }

    .form-check-input:checked {
      background-color: var(--coral);
      border-color: var(--coral);
    }

    .privacy-note {
      color: rgba(255,249,240,.84);
      font-size: 14px;
      margin-top: 14px;
    }

    .accordion {
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      border: 1px solid var(--border) !important;
      border-radius: 18px !important;
      overflow: hidden;
      background: var(--cream);
      box-shadow: 0 12px 28px rgba(36,33,31,.05);
    }

    .accordion-button {
      background: var(--cream);
      color: var(--charcoal);
      font-weight: 950;
      padding: 18px 20px;
      box-shadow: none !important;
    }

    .accordion-button:not(.collapsed) {
      background: rgba(255,209,102,.22);
      color: var(--charcoal);
    }

    .accordion-button:focus {
      border-color: rgba(233,75,53,.42);
      box-shadow: 0 0 0 4px rgba(233,75,53,.10) !important;
    }

    .accordion-button::after {
      filter: sepia(1) saturate(1.7) hue-rotate(330deg);
    }

    .accordion-body {
      color: var(--muted);
      padding: 0 20px 20px;
    }

    .site-footer {
      background: #24211F;
      color: rgba(255,249,240,.78);
      padding: 58px 0 30px;
      position: relative;
    }

    .site-footer::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      height: 5px;
      background: linear-gradient(90deg, var(--coral), var(--lemon), var(--sage), var(--wood));
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 950;
      color: var(--cream);
      font-size: 20px;
      margin-bottom: 14px;
    }

    .footer-title {
      color: var(--cream);
      font-weight: 950;
      margin-bottom: 14px;
    }

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

    .footer-links a {
      color: rgba(255,249,240,.72);
    }

    .footer-links a:hover {
      color: var(--lemon);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,249,240,.12);
      margin-top: 34px;
      padding-top: 20px;
      font-size: 14px;
      color: rgba(255,249,240,.62);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

    @media (max-width: 1199.98px) {
      .nav-search {
        min-width: 210px;
      }

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

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

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

      .timeline-wrap::before {
        display: none;
      }

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

    @media (max-width: 991.98px) {
      .navbar-collapse {
        padding: 16px 0 8px;
      }

      .nav-search {
        min-width: 100%;
        margin: 10px 0;
      }

      .navbar .d-flex.align-items-center.gap-2 {
        align-items: stretch !important;
      }

      .hero {
        min-height: auto;
        padding-top: 22px;
      }

      .section {
        padding: 68px 0;
      }

      .highlight-grid,
      .news-layout {
        grid-template-columns: 1fr;
      }

      .feature-card.large {
        min-height: auto;
      }

      .plan-card.featured {
        transform: none;
      }

      .plan-card.featured:hover {
        transform: translateY(-4px);
      }
    }

    @media (max-width: 767.98px) {
      .navbar {
        min-height: 64px;
      }

      .navbar-brand {
        max-width: 230px;
        font-size: 16px;
      }

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

      .hero-stage,
      .hero-poster {
        min-height: auto;
        border-radius: 22px;
      }

      .hero-poster {
        padding: 26px 18px;
      }

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

      .hero-metrics,
      .entry-grid,
      .timeline-wrap,
      .proof-strip {
        grid-template-columns: 1fr;
      }

      .limited-bar {
        align-items: flex-start;
      }

      .section {
        padding: 56px 0;
      }

      .section-tight {
        padding: 46px 0;
      }

      .news-item {
        grid-template-columns: 1fr;
        gap: 10px;
      }

      .date-block {
        width: fit-content;
        min-width: 96px;
      }

      .hero-actions .btn,
      .lead-form-card .btn {
        width: 100%;
      }

      .footer-bottom {
        display: block;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .series-nav a {
        width: 100%;
        justify-content: center;
      }

      .control-panel {
        padding: 16px;
        border-radius: 20px;
      }

      .entry-card,
      .metric-tile,
      .feature-card,
      .plan-card,
      .lead-form-card {
        padding: 18px;
      }
    }

/* roulang page: category1 */
:root {
      --coral: #E94B35;
      --coral-dark: #C93625;
      --sage: #6E8F72;
      --sage-soft: #E5EEE3;
      --wood: #B8784E;
      --lemon: #FFD166;
      --ink: #24211F;
      --muted: #766E66;
      --plaster: #F7F1E8;
      --sand: #EFE6D8;
      --cream: #FFFBF3;
      --line: rgba(36, 33, 31, .1);
      --line-strong: rgba(36, 33, 31, .18);
      --shadow: 0 18px 50px rgba(36, 33, 31, .08);
      --shadow-hover: 0 24px 60px rgba(36, 33, 31, .12);
      --radius: 18px;
      --radius-sm: 14px;
      --container: 1200px;
      --focus: 0 0 0 .22rem rgba(233, 75, 53, .18);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background:
        linear-gradient(90deg, rgba(184,120,78,.07) 1px, transparent 1px),
        linear-gradient(180deg, rgba(184,120,78,.06) 1px, transparent 1px),
        var(--plaster);
      background-size: 42px 42px;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.7;
      letter-spacing: 0;
      overflow-x: hidden;
    }

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

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

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

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1040;
      background: rgba(255, 251, 243, .94);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(14px);
    }

    .navbar {
      min-height: 72px;
      padding: .75rem 0;
    }

    .navbar-brand,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: .65rem;
      color: var(--ink);
      font-weight: 800;
      letter-spacing: 0;
      white-space: nowrap;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      display: inline-grid;
      place-items: center;
      border-radius: 13px;
      color: var(--cream);
      background: linear-gradient(135deg, var(--coral), var(--wood));
      box-shadow: 0 10px 24px rgba(233, 75, 53, .25);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "5";
      position: absolute;
      right: -5px;
      top: -6px;
      width: 18px;
      height: 18px;
      display: grid;
      place-items: center;
      border-radius: 6px;
      background: var(--lemon);
      color: var(--ink);
      font-size: 11px;
      font-weight: 900;
      line-height: 1;
      border: 1px solid rgba(36,33,31,.08);
    }

    .navbar .nav-link {
      color: var(--muted);
      font-weight: 700;
      padding: .55rem .9rem;
      border-radius: 999px;
    }

    .navbar .nav-link:hover,
    .navbar .nav-link:focus {
      color: var(--coral);
      background: rgba(233, 75, 53, .08);
    }

    .navbar .nav-link.active {
      color: var(--ink);
      background: var(--sage-soft);
      box-shadow: inset 0 0 0 1px rgba(110,143,114,.22);
    }

    .navbar-toggler {
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: .5rem .65rem;
    }

    .navbar-toggler:focus {
      box-shadow: var(--focus);
    }

    .nav-search {
      position: relative;
      min-width: 250px;
    }

    .nav-search i {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--wood);
      pointer-events: none;
    }

    .nav-search .form-control {
      height: 42px;
      border-radius: 999px;
      border: 1px solid transparent;
      background: var(--sand);
      padding-left: 40px;
      color: var(--ink);
      box-shadow: none;
    }

    .nav-search .form-control::placeholder {
      color: rgba(118,110,102,.78);
    }

    .nav-search .form-control:focus,
    .form-control:focus,
    .form-select:focus {
      border-color: var(--coral);
      box-shadow: var(--focus);
      background: var(--cream);
    }

    .btn {
      border: 0;
      font-weight: 800;
      letter-spacing: 0;
      transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease;
    }

    .btn-primary-custom {
      color: var(--cream);
      background: var(--coral);
      border-radius: 999px;
      padding: .66rem 1.15rem;
      box-shadow: 0 12px 26px rgba(233,75,53,.22);
    }

    .btn-primary-custom:hover,
    .btn-primary-custom:focus {
      color: var(--cream);
      background: var(--coral-dark);
      transform: translateY(-1px);
      box-shadow: 0 16px 32px rgba(233,75,53,.3);
    }

    .btn-secondary-custom {
      color: var(--ink);
      background: var(--cream);
      border: 1px solid var(--line-strong);
      border-radius: 999px;
      padding: .66rem 1.15rem;
    }

    .btn-secondary-custom:hover,
    .btn-secondary-custom:focus {
      color: var(--ink);
      background: var(--sage-soft);
      border-color: rgba(110,143,114,.55);
      transform: translateY(-1px);
    }

    .btn-card {
      border-radius: 12px;
      padding: .58rem .9rem;
    }

    main {
      position: relative;
    }

    .section {
      padding: 84px 0;
    }

    .section-tight {
      padding: 58px 0;
    }

    .mini-hero {
      position: relative;
      overflow: hidden;
      padding: 82px 0 54px;
      background:
        linear-gradient(135deg, rgba(255,209,102,.36), transparent 36%),
        linear-gradient(116deg, transparent 0 58%, rgba(233,75,53,.14) 58% 75%, rgba(110,143,114,.2) 75%),
        var(--plaster);
      border-bottom: 1px solid var(--line);
    }

    .mini-hero::before {
      content: "";
      position: absolute;
      left: -10vw;
      bottom: -80px;
      width: 58vw;
      height: 180px;
      background: rgba(110,143,114,.18);
      transform: rotate(-3deg);
      border-top: 1px solid rgba(110,143,114,.16);
    }

    .hero-content {
      position: relative;
      z-index: 1;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: .5rem;
      padding: .42rem .72rem;
      border-radius: 999px;
      background: var(--cream);
      color: var(--wood);
      border: 1px solid rgba(184,120,78,.2);
      font-weight: 800;
      margin-bottom: 18px;
      box-shadow: 0 8px 24px rgba(36,33,31,.05);
    }

    h1,
    h2,
    h3 {
      line-height: 1.18;
      letter-spacing: 0;
      color: var(--ink);
    }

    h1 {
      font-size: clamp(34px, 5vw, 58px);
      font-weight: 900;
      max-width: 880px;
      margin-bottom: 18px;
    }

    h2 {
      font-size: clamp(28px, 3.4vw, 40px);
      font-weight: 900;
      margin-bottom: 14px;
    }

    .lead-copy {
      max-width: 820px;
      color: var(--muted);
      font-size: 18px;
      margin-bottom: 28px;
    }

    .hero-panel {
      background: var(--cream);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 24px;
      height: 100%;
    }

    .whitepaper-cover {
      min-height: 280px;
      border-radius: 18px;
      padding: 24px;
      color: var(--cream);
      background:
        linear-gradient(145deg, rgba(36,33,31,.08), transparent 45%),
        linear-gradient(135deg, var(--coral), var(--wood));
      position: relative;
      overflow: hidden;
    }

    .whitepaper-cover::after {
      content: "";
      position: absolute;
      right: -55px;
      bottom: -42px;
      width: 190px;
      height: 190px;
      border-radius: 50%;
      background: rgba(255,209,102,.72);
    }

    .cover-month {
      width: 72px;
      height: 72px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      background: rgba(255,251,243,.16);
      border: 1px solid rgba(255,251,243,.28);
      font-size: 34px;
      font-weight: 900;
      margin-bottom: 28px;
      position: relative;
      z-index: 1;
    }

    .cover-title {
      position: relative;
      z-index: 1;
      font-size: 28px;
      line-height: 1.25;
      font-weight: 900;
      max-width: 260px;
      margin-bottom: 14px;
    }

    .cover-text {
      position: relative;
      z-index: 1;
      max-width: 300px;
      color: rgba(255,251,243,.86);
      margin: 0;
    }

    .summary-list {
      display: grid;
      gap: 12px;
      margin-top: 18px;
      padding: 0;
      list-style: none;
    }

    .summary-list li {
      display: flex;
      gap: 12px;
      padding: 13px 14px;
      border-radius: 14px;
      background: rgba(239,230,216,.68);
      border: 1px solid var(--line);
      color: var(--muted);
    }

    .summary-list i {
      color: var(--coral);
      font-size: 18px;
      flex: 0 0 auto;
    }

    .limit-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      margin-top: 26px;
      padding: 14px 16px;
      border-radius: 18px;
      background: var(--lemon);
      color: var(--ink);
      border: 1px solid rgba(36,33,31,.08);
      box-shadow: 0 14px 36px rgba(184,120,78,.13);
    }

    .status-dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--coral);
      box-shadow: 0 0 0 6px rgba(233,75,53,.14);
      flex: 0 0 auto;
    }

    .badge-soft,
    .badge-coral,
    .badge-sage,
    .badge-wood,
    .badge-lemon {
      display: inline-flex;
      align-items: center;
      gap: .35rem;
      border-radius: 999px;
      padding: .38rem .65rem;
      font-weight: 800;
      font-size: 13px;
      line-height: 1;
    }

    .badge-soft {
      background: var(--cream);
      color: var(--wood);
      border: 1px solid rgba(184,120,78,.22);
    }

    .badge-coral {
      background: rgba(233,75,53,.12);
      color: var(--coral-dark);
    }

    .badge-sage {
      background: var(--sage-soft);
      color: #46654B;
    }

    .badge-wood {
      background: rgba(184,120,78,.14);
      color: #7D4D2F;
    }

    .badge-lemon {
      background: rgba(255,209,102,.52);
      color: var(--ink);
    }

    .filter-section {
      background: linear-gradient(180deg, var(--sand), rgba(239,230,216,.55));
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 22px;
      margin-bottom: 28px;
    }

    .section-head p {
      max-width: 650px;
      color: var(--muted);
      margin: 0;
    }

    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding: 12px;
      border-radius: 18px;
      background: rgba(255,251,243,.72);
      border: 1px solid var(--line);
      box-shadow: 0 12px 36px rgba(36,33,31,.05);
      margin-bottom: 26px;
    }

    .filter-pill {
      border: 1px solid transparent;
      border-radius: 999px;
      padding: .6rem .9rem;
      background: transparent;
      color: var(--muted);
      font-weight: 800;
    }

    .filter-pill:hover,
    .filter-pill:focus {
      color: var(--ink);
      background: var(--cream);
      border-color: var(--line);
    }

    .filter-pill.active {
      color: var(--cream);
      background: var(--coral);
      box-shadow: 0 12px 24px rgba(233,75,53,.2);
    }

    .content-stack {
      display: grid;
      gap: 16px;
    }

    .info-card {
      display: grid;
      grid-template-columns: 92px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 20px;
      background: var(--cream);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .info-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(233,75,53,.28);
    }

    .date-block {
      min-height: 78px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      text-align: center;
      background: var(--sage-soft);
      color: var(--ink);
      border: 1px solid rgba(110,143,114,.22);
      font-weight: 900;
    }

    .date-block.coral {
      background: rgba(233,75,53,.12);
      border-color: rgba(233,75,53,.22);
      color: var(--coral-dark);
    }

    .date-block.wood {
      background: rgba(184,120,78,.14);
      border-color: rgba(184,120,78,.24);
      color: #7D4D2F;
    }

    .date-block small {
      display: block;
      color: var(--muted);
      font-size: 12px;
      font-weight: 800;
    }

    .info-card h3 {
      font-size: 20px;
      font-weight: 900;
      margin: 0 0 8px;
    }

    .info-card p {
      color: var(--muted);
      margin: 0 0 12px;
    }

    .meta-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
    }

    .arrow-btn {
      width: 44px;
      height: 44px;
      display: inline-grid;
      place-items: center;
      border-radius: 14px;
      color: var(--cream);
      background: var(--coral);
      box-shadow: 0 12px 24px rgba(233,75,53,.22);
    }

    .arrow-btn:hover,
    .arrow-btn:focus {
      color: var(--cream);
      background: var(--coral-dark);
      transform: translateX(2px);
    }

    .side-stack {
      display: grid;
      gap: 18px;
      position: sticky;
      top: 96px;
    }

    .side-card,
    .cta-card,
    .faq-wrap {
      background: var(--cream);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 24px;
    }

    .side-card.highlight {
      color: var(--ink);
      background:
        linear-gradient(135deg, rgba(255,209,102,.48), transparent 56%),
        var(--cream);
      border-color: rgba(184,120,78,.22);
    }

    .side-card h2,
    .side-card h3 {
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .side-card p {
      color: var(--muted);
      margin-bottom: 14px;
    }

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

    .mini-steps li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 13px;
      border-radius: 14px;
      background: rgba(239,230,216,.55);
      border: 1px solid var(--line);
    }

    .step-num {
      width: 28px;
      height: 28px;
      display: inline-grid;
      place-items: center;
      border-radius: 10px;
      background: var(--coral);
      color: var(--cream);
      font-size: 13px;
      font-weight: 900;
      flex: 0 0 auto;
    }

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

    .question-list a {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      font-weight: 700;
    }

    .question-list a:hover {
      color: var(--coral);
    }

    .notice-band {
      background:
        linear-gradient(110deg, var(--sage) 0 44%, var(--wood) 44% 72%, var(--coral) 72%);
      color: var(--cream);
      border-radius: 22px;
      padding: 28px;
      box-shadow: var(--shadow);
    }

    .notice-band h2 {
      color: var(--cream);
    }

    .notice-band p {
      color: rgba(255,251,243,.86);
      margin: 0;
    }

    .pagination-custom {
      margin-top: 28px;
      gap: 8px;
      flex-wrap: wrap;
    }

    .pagination-custom .page-link {
      border: 1px solid var(--line);
      color: var(--ink);
      background: var(--cream);
      border-radius: 999px;
      min-width: 42px;
      text-align: center;
      font-weight: 800;
      box-shadow: none;
    }

    .pagination-custom .page-link:hover,
    .pagination-custom .page-link:focus {
      color: var(--coral);
      border-color: rgba(233,75,53,.28);
      box-shadow: var(--focus);
    }

    .pagination-custom .page-item.active .page-link {
      color: var(--cream);
      background: var(--coral);
      border-color: var(--coral);
    }

    .empty-note {
      margin-top: 16px;
      color: var(--muted);
      font-weight: 700;
    }

    .faq-section {
      background: var(--plaster);
    }

    .accordion {
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      overflow: hidden;
      background: var(--cream);
      border: 1px solid var(--line);
      border-radius: var(--radius-sm) !important;
      box-shadow: 0 10px 28px rgba(36,33,31,.05);
    }

    .accordion-button {
      color: var(--ink);
      background: var(--cream);
      font-weight: 900;
      box-shadow: none;
      padding: 18px 20px;
    }

    .accordion-button:not(.collapsed) {
      color: var(--coral-dark);
      background: rgba(233,75,53,.08);
      box-shadow: none;
    }

    .accordion-button:focus {
      box-shadow: var(--focus);
      border-color: transparent;
    }

    .accordion-button::after {
      filter: sepia(1) saturate(2) hue-rotate(320deg);
    }

    .accordion-body {
      color: var(--muted);
      padding: 0 20px 20px;
    }

    .cta-section {
      padding: 82px 0;
      background:
        linear-gradient(96deg, rgba(110,143,114,.9) 0 38%, rgba(110,143,114,.16) 38% 100%),
        var(--sand);
    }

    .cta-card {
      padding: 30px;
    }

    .form-label {
      color: var(--ink);
      font-weight: 800;
      margin-bottom: 8px;
    }

    .form-control,
    .form-select {
      border-radius: 14px;
      border: 1px solid var(--line);
      background: rgba(239,230,216,.55);
      color: var(--ink);
      padding: .78rem .9rem;
    }

    .form-check-input {
      border-color: var(--line-strong);
    }

    .form-check-input:checked {
      background-color: var(--coral);
      border-color: var(--coral);
    }

    .form-check-input:focus {
      box-shadow: var(--focus);
      border-color: var(--coral);
    }

    .trust-note {
      color: var(--muted);
      font-size: 14px;
      margin-top: 12px;
    }

    .site-footer {
      background: #24211F;
      color: rgba(255,251,243,.78);
      padding: 58px 0 24px;
    }

    .site-footer .brand-mark {
      box-shadow: none;
    }

    .footer-brand {
      color: var(--cream);
      margin-bottom: 16px;
      font-size: 18px;
    }

    .site-footer p {
      color: rgba(255,251,243,.72);
      max-width: 460px;
    }

    .footer-title {
      color: var(--cream);
      font-weight: 900;
      margin-bottom: 16px;
      position: relative;
      padding-top: 4px;
    }

    .footer-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: -7px;
      width: 30px;
      height: 3px;
      border-radius: 999px;
      background: var(--coral);
    }

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

    .footer-links a {
      color: rgba(255,251,243,.72);
    }

    .footer-links a:hover,
    .footer-links a:focus {
      color: var(--lemon);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      margin-top: 38px;
      padding-top: 20px;
      border-top: 1px solid rgba(255,251,243,.12);
      color: rgba(255,251,243,.58);
      font-size: 14px;
    }

    @media (max-width: 991.98px) {
      .navbar {
        min-height: 64px;
      }

      .navbar-collapse {
        padding: 16px 0 8px;
      }

      .navbar-nav {
        align-items: stretch !important;
      }

      .nav-search {
        width: 100%;
        min-width: 0;
      }

      .section {
        padding: 64px 0;
      }

      .mini-hero {
        padding: 62px 0 44px;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }

      .side-stack {
        position: static;
        margin-top: 26px;
      }
    }

    @media (max-width: 767.98px) {
      .hero-panel,
      .side-card,
      .cta-card,
      .faq-wrap {
        padding: 20px;
      }

      .whitepaper-cover {
        min-height: 238px;
      }

      .info-card {
        grid-template-columns: 1fr;
        align-items: stretch;
      }

      .date-block {
        min-height: auto;
        padding: 12px;
        place-items: start;
        text-align: left;
      }

      .arrow-btn {
        width: 100%;
        height: 42px;
      }

      .filter-bar {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 14px;
      }

      .filter-pill {
        white-space: nowrap;
      }

      .notice-band {
        background: linear-gradient(135deg, var(--sage), var(--wood));
      }

      .cta-section {
        background: var(--sage-soft);
      }

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

    @media (max-width: 520px) {
      body {
        font-size: 15px;
      }

      .navbar-brand span:last-child,
      .footer-brand span:last-child {
        max-width: 210px;
        white-space: normal;
        line-height: 1.2;
      }

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

      .limit-bar {
        align-items: flex-start;
      }

      .btn-primary-custom,
      .btn-secondary-custom {
        width: 100%;
        justify-content: center;
      }

      .mini-hero .d-flex {
        width: 100%;
      }

      .mini-hero .d-flex .btn {
        width: 100%;
      }
    }