/* roulang page: index */
:root {
      --bg: #0f1117;
      --bg-soft: #171a23;
      --panel: #ffffff;
      --panel-soft: #f6f3ee;
      --text: #17151a;
      --text-light: #f8f6f2;
      --muted: #6f6a73;
      --muted-light: #c9c1bd;
      --primary: #b71f4b;
      --primary-dark: #8f183a;
      --accent: #d79d36;
      --accent-soft: #fff1cf;
      --line: rgba(23, 21, 26, .12);
      --line-light: rgba(255, 255, 255, .16);
      --shadow: 0 22px 60px rgba(10, 10, 14, .16);
      --shadow-soft: 0 14px 32px rgba(10, 10, 14, .10);
      --radius: 8px;
      --radius-lg: 14px;
      --container: 1180px;
      --header-h: 76px;
      --font: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
    }

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

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

    body {
      font-family: var(--font);
      color: var(--text);
      background: #fbfaf7;
      line-height: 1.7;
      min-width: 320px;
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(215, 157, 54, .65);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      background: rgba(15, 17, 23, .88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line-light);
    }

    .nav-wrap {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      color: var(--text-light);
      font-weight: 800;
      letter-spacing: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: var(--radius);
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      box-shadow: 0 12px 28px rgba(183, 31, 75, .35);
      flex: 0 0 auto;
    }

    .brand-name {
      font-size: 17px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 360px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--muted-light);
    }

    .main-nav a {
      padding: 10px 14px;
      border-radius: var(--radius);
      transition: background .2s ease, color .2s ease;
      font-size: 15px;
    }

    .main-nav a:hover,
    .main-nav a.active {
      color: #fff;
      background: rgba(255, 255, 255, .10);
    }

    .nav-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 18px;
      border-radius: var(--radius);
      color: #fff;
      background: var(--primary);
      font-weight: 700;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
      box-shadow: 0 12px 26px rgba(183, 31, 75, .28);
    }

    .nav-action:hover {
      transform: translateY(-2px);
      background: var(--primary-dark);
      box-shadow: 0 16px 30px rgba(183, 31, 75, .36);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .10);
      color: #fff;
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      display: block;
      width: 20px;
      height: 2px;
      background: currentColor;
      border-radius: 99px;
      transition: transform .2s ease, opacity .2s ease;
    }

    .menu-toggle span::before {
      transform: translateY(-7px);
    }

    .menu-toggle span::after {
      transform: translateY(5px);
    }

    .hero {
      position: relative;
      min-height: calc(100vh - var(--header-h));
      display: flex;
      align-items: center;
      overflow: hidden;
      color: var(--text-light);
      background:
        linear-gradient(90deg, rgba(15,17,23,.88) 0%, rgba(15,17,23,.68) 48%, rgba(15,17,23,.34) 100%),
        url("/assets/images/backpic/back-1.jpg") center/cover no-repeat;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 120px;
      background: linear-gradient(180deg, transparent, #fbfaf7);
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
      padding: 88px 0 122px;
      display: grid;
      grid-template-columns: minmax(0, 760px) minmax(260px, 1fr);
      gap: 56px;
      align-items: end;
    }

    .age-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      width: fit-content;
      padding: 8px 12px;
      border: 1px solid rgba(255,255,255,.24);
      border-radius: 999px;
      background: rgba(255,255,255,.10);
      color: #fff;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 22px;
    }

    .age-badge strong {
      display: inline-grid;
      place-items: center;
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background: var(--accent);
      color: #151111;
      font-size: 13px;
    }

    h1 {
      font-size: clamp(38px, 6vw, 76px);
      line-height: 1.05;
      letter-spacing: 0;
      max-width: 820px;
      margin-bottom: 24px;
    }

    .hero-sub {
      max-width: 720px;
      color: #e5ded8;
      font-size: clamp(17px, 2vw, 21px);
      line-height: 1.85;
      margin-bottom: 34px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 34px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 22px;
      border-radius: var(--radius);
      font-weight: 800;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 18px 36px rgba(183, 31, 75, .32);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      background: var(--primary-dark);
      box-shadow: 0 22px 44px rgba(183, 31, 75, .40);
    }

    .btn-ghost {
      color: #fff;
      border-color: rgba(255,255,255,.28);
      background: rgba(255,255,255,.10);
    }

    .btn-ghost:hover {
      transform: translateY(-2px);
      background: rgba(255,255,255,.18);
      border-color: rgba(255,255,255,.42);
    }

    .hero-note {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      color: var(--muted-light);
      font-size: 14px;
    }

    .hero-note span {
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,.18);
      background: rgba(0,0,0,.18);
    }

    .hero-panel {
      align-self: stretch;
      display: grid;
      align-content: end;
      gap: 14px;
    }

    .quick-card {
      padding: 22px;
      border: 1px solid rgba(255,255,255,.18);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.12);
      backdrop-filter: blur(14px);
      box-shadow: 0 20px 46px rgba(0,0,0,.22);
    }

    .quick-card h2 {
      font-size: 20px;
      margin-bottom: 8px;
    }

    .quick-card p {
      color: #e8e1dc;
      font-size: 15px;
    }

    .quick-list {
      margin-top: 16px;
      display: grid;
      gap: 10px;
    }

    .quick-list li {
      list-style: none;
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: #fff;
      font-size: 14px;
    }

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

    main {
      overflow: hidden;
    }

    .section {
      padding: 86px 0;
    }

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

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

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .eyebrow::before {
      content: "";
      width: 26px;
      height: 2px;
      background: var(--primary);
      border-radius: 99px;
    }

    .section-title {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.2;
      letter-spacing: 0;
      margin-bottom: 14px;
    }

    .section-desc {
      color: var(--muted);
      font-size: 17px;
      max-width: 820px;
    }

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

    .feature-card {
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-soft);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      min-height: 210px;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
      border-color: rgba(183,31,75,.28);
    }

    .icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius);
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), #2c2f3d);
      margin-bottom: 18px;
      font-weight: 900;
    }

    .feature-card h3 {
      font-size: 19px;
      margin-bottom: 8px;
    }

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

    .visual-band {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 40px;
      align-items: center;
    }

    .image-stack {
      position: relative;
      min-height: 500px;
    }

    .image-main,
    .image-float {
      overflow: hidden;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      border: 1px solid rgba(255,255,255,.8);
    }

    .image-main {
      width: 78%;
      height: 460px;
    }

    .image-main img,
    .image-float img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .image-float {
      position: absolute;
      right: 0;
      bottom: 0;
      width: 48%;
      height: 260px;
      background: #fff;
    }

    .text-list {
      display: grid;
      gap: 18px;
      margin-top: 26px;
    }

    .text-list li {
      list-style: none;
      display: grid;
      grid-template-columns: 32px 1fr;
      gap: 14px;
      align-items: start;
    }

    .text-list b {
      display: grid;
      place-items: center;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--accent-soft);
      color: #7d5511;
      font-size: 14px;
    }

    .text-list strong {
      display: block;
      margin-bottom: 4px;
      font-size: 17px;
    }

    .text-list span {
      color: var(--muted);
      font-size: 15px;
    }

    .category-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 24px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 13px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: #fff;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      transition: background .2s ease, color .2s ease, border-color .2s ease;
    }

    .tag:hover,
    .tag.active {
      color: #fff;
      background: var(--primary);
      border-color: var(--primary);
    }

    .content-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 22px;
    }

    .content-card {
      overflow: hidden;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .content-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }

    .content-media {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #222;
    }

    .content-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .content-card:hover .content-media img {
      transform: scale(1.04);
    }

    .content-body {
      padding: 22px;
    }

    .content-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      color: var(--muted);
      font-size: 13px;
      margin-bottom: 10px;
    }

    .pill {
      display: inline-flex;
      align-items: center;
      padding: 3px 8px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: #77510e;
      font-weight: 800;
    }

    .content-card h3 {
      font-size: 20px;
      line-height: 1.35;
      margin-bottom: 10px;
    }

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

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

    .updates-aside {
      position: sticky;
      top: calc(var(--header-h) + 24px);
      padding: 28px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(183,31,75,.92), rgba(37,39,51,.96)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      color: #fff;
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .updates-aside h2 {
      font-size: 30px;
      line-height: 1.2;
      margin-bottom: 12px;
    }

    .updates-aside p {
      color: #eee4e1;
      margin-bottom: 20px;
    }

    .search-box {
      display: flex;
      min-height: 48px;
      background: rgba(255,255,255,.14);
      border: 1px solid rgba(255,255,255,.22);
      border-radius: var(--radius);
      overflow: hidden;
    }

    .search-box input {
      min-width: 0;
      flex: 1;
      border: 0;
      outline: 0;
      padding: 0 14px;
      color: #fff;
      background: transparent;
    }

    .search-box input::placeholder {
      color: rgba(255,255,255,.68);
    }

    .search-box button {
      padding: 0 16px;
      background: var(--accent);
      color: #17151a;
      font-weight: 900;
      transition: background .2s ease;
    }

    .search-box button:hover {
      background: #efb64a;
    }

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

    .update-item {
      display: grid;
      grid-template-columns: 112px 1fr;
      gap: 16px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: 0 8px 22px rgba(10,10,14,.06);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .update-item:hover {
      transform: translateY(-2px);
      border-color: rgba(183,31,75,.26);
      box-shadow: var(--shadow-soft);
    }

    .update-date {
      display: grid;
      place-items: center;
      min-height: 96px;
      border-radius: var(--radius);
      background: #171a23;
      color: #fff;
      text-align: center;
      padding: 12px;
      font-weight: 800;
      font-size: 14px;
    }

    .update-text {
      min-width: 0;
    }

    .update-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
      color: var(--muted);
      font-size: 13px;
      margin-bottom: 7px;
    }

    .update-text h3 {
      font-size: 19px;
      line-height: 1.35;
      margin-bottom: 6px;
      word-break: break-word;
    }

    .update-text p {
      color: var(--muted);
      font-size: 15px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .empty-state {
      padding: 28px;
      border: 1px dashed rgba(23,21,26,.22);
      border-radius: var(--radius-lg);
      background: #fff;
      color: var(--muted);
      text-align: center;
    }

    .proof {
      background: #171a23;
      color: var(--text-light);
    }

    .proof .section-desc,
    .proof .eyebrow {
      color: #e6dcd4;
    }

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

    .proof-card {
      padding: 24px;
      border: 1px solid var(--line-light);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,.06);
    }

    .proof-card strong {
      display: block;
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1;
      color: var(--accent);
      margin-bottom: 10px;
    }

    .proof-card span {
      color: #ded6d2;
      font-size: 15px;
    }

    .notice-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .notice-card {
      padding: 24px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
    }

    .notice-card h3 {
      font-size: 20px;
      margin-bottom: 10px;
    }

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

    .faq-layout {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 36px;
      align-items: start;
    }

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

    details {
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: 0 8px 18px rgba(10,10,14,.05);
      overflow: hidden;
    }

    summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 20px;
      font-weight: 800;
      display: flex;
      justify-content: space-between;
      gap: 16px;
    }

    summary::-webkit-details-marker {
      display: none;
    }

    summary::after {
      content: "+";
      color: var(--primary);
      font-size: 22px;
      line-height: 1;
      transition: transform .2s ease;
    }

    details[open] summary::after {
      transform: rotate(45deg);
    }

    details p {
      padding: 0 20px 20px;
      color: var(--muted);
      font-size: 15px;
    }

    .cta {
      position: relative;
      padding: 86px 0;
      color: #fff;
      background:
        linear-gradient(90deg, rgba(15,17,23,.94), rgba(15,17,23,.72)),
        url("/assets/images/backpic/back-3.jpg") center/cover no-repeat;
    }

    .cta-box {
      max-width: 800px;
    }

    .cta h2 {
      font-size: clamp(30px, 5vw, 52px);
      line-height: 1.18;
      margin-bottom: 16px;
    }

    .cta p {
      color: #e8dfdb;
      font-size: 17px;
      margin-bottom: 26px;
      max-width: 720px;
    }

    .site-footer {
      background: #0f1117;
      color: #d8d1cd;
      padding: 54px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr;
      gap: 36px;
      padding-bottom: 34px;
      border-bottom: 1px solid var(--line-light);
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .footer-col h3 {
      color: #fff;
      font-size: 17px;
      margin-bottom: 14px;
    }

    .footer-col p,
    .footer-col li {
      color: #bfb7b2;
      font-size: 14px;
    }

    .footer-col ul {
      display: grid;
      gap: 8px;
      list-style: none;
    }

    .footer-col a {
      transition: color .2s ease;
    }

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

    .copyright {
      padding-top: 22px;
      color: #9d9692;
      font-size: 13px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
    }

    .age-modal {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 20px;
      background: rgba(15,17,23,.86);
      backdrop-filter: blur(8px);
    }

    .age-modal.show {
      display: flex;
    }

    .age-dialog {
      width: min(100%, 520px);
      border-radius: var(--radius-lg);
      background: #fff;
      padding: 30px;
      box-shadow: 0 26px 80px rgba(0,0,0,.34);
    }

    .age-dialog .age-badge {
      color: var(--text);
      background: var(--accent-soft);
      border-color: rgba(215,157,54,.35);
      margin-bottom: 16px;
    }

    .age-dialog h2 {
      font-size: 28px;
      line-height: 1.25;
      margin-bottom: 12px;
    }

    .age-dialog p {
      color: var(--muted);
      margin-bottom: 22px;
    }

    .age-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .age-actions .btn-ghost {
      color: var(--text);
      border-color: var(--line);
      background: #fff;
    }

    @media (max-width: 1024px) {
      .brand-name {
        max-width: 260px;
      }

      .hero-inner,
      .visual-band,
      .updates-wrap,
      .faq-layout {
        grid-template-columns: 1fr;
      }

      .hero-panel {
        max-width: 620px;
      }

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

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

      .updates-aside {
        position: static;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-h: 68px;
      }

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

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

      .main-nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: calc(var(--header-h) + 10px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border: 1px solid var(--line-light);
        border-radius: var(--radius-lg);
        background: rgba(15,17,23,.96);
        box-shadow: var(--shadow);
      }

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

      .main-nav a {
        width: 100%;
      }

      .nav-action {
        display: none;
      }

      .brand-name {
        max-width: 210px;
        font-size: 15px;
      }

      .hero {
        min-height: auto;
      }

      .hero-inner {
        padding: 72px 0 98px;
      }

      .section {
        padding: 64px 0;
      }

      .image-stack {
        min-height: auto;
        display: grid;
        gap: 14px;
      }

      .image-main,
      .image-float {
        position: static;
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 11;
      }

      .content-grid,
      .feature-grid,
      .notice-grid,
      .proof-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

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

      .update-date {
        min-height: 64px;
        place-items: start;
        text-align: left;
      }
    }

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

      .brand-name {
        max-width: 176px;
      }

      .hero-actions,
      .age-actions {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .quick-card,
      .feature-card,
      .content-body,
      .notice-card,
      .updates-aside,
      .age-dialog {
        padding: 20px;
      }

      .section-title {
        font-size: 28px;
      }

      .copyright {
        display: block;
      }

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

/* roulang page: article */
:root {
      --bg: #0f1117;
      --bg-soft: #171a23;
      --panel: #ffffff;
      --panel-soft: #f6f3ee;
      --text: #17151a;
      --text-light: #f8f6f2;
      --muted: #6f6a73;
      --muted-light: #c9c1bd;
      --primary: #b71f4b;
      --primary-dark: #8f183a;
      --accent: #d79d36;
      --accent-soft: #fff1cf;
      --line: rgba(23, 21, 26, .12);
      --line-light: rgba(255, 255, 255, .16);
      --shadow: 0 22px 60px rgba(10, 10, 14, .16);
      --shadow-soft: 0 14px 32px rgba(10, 10, 14, .10);
      --radius: 8px;
      --radius-lg: 14px;
      --container: 1180px;
      --header-h: 76px;
      --font: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: var(--font);
      color: var(--text);
      background: #fbfaf7;
      line-height: 1.7;
      min-width: 320px;
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    ::selection {
      background: rgba(183, 31, 75, .22);
      color: var(--text);
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      background: rgba(15, 17, 23, .88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line-light);
    }

    .nav-wrap {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      color: var(--text-light);
      font-weight: 800;
      letter-spacing: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: var(--radius);
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      box-shadow: 0 12px 28px rgba(183, 31, 75, .35);
      flex: 0 0 auto;
    }

    .brand-name {
      font-size: 17px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 360px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--muted-light);
    }

    .main-nav a {
      padding: 10px 14px;
      border-radius: var(--radius);
      transition: background .2s ease, color .2s ease;
      font-size: 15px;
    }

    .main-nav a:hover,
    .main-nav a.active {
      color: #fff;
      background: rgba(255, 255, 255, .10);
    }

    .nav-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 18px;
      border-radius: var(--radius);
      color: #fff;
      background: var(--primary);
      font-weight: 700;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
      box-shadow: 0 12px 26px rgba(183, 31, 75, .28);
    }

    .nav-action:hover {
      transform: translateY(-2px);
      background: var(--primary-dark);
      box-shadow: 0 16px 30px rgba(183, 31, 75, .36);
      color: #fff;
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .10);
      color: #fff;
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      display: block;
      width: 20px;
      height: 2px;
      background: currentColor;
      border-radius: 99px;
      transition: transform .2s ease, opacity .2s ease;
    }

    .menu-toggle span::before {
      transform: translateY(-7px);
    }

    .menu-toggle span::after {
      transform: translateY(5px);
    }

    .menu-open .menu-toggle span {
      transform: rotate(45deg);
    }

    .menu-open .menu-toggle span::before {
      opacity: 0;
    }

    .menu-open .menu-toggle span::after {
      transform: translateY(-2px) rotate(-90deg);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 22px;
      border-radius: var(--radius);
      font-weight: 800;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 18px 36px rgba(183, 31, 75, .32);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      background: var(--primary-dark);
      box-shadow: 0 22px 42px rgba(183, 31, 75, .38);
      color: #fff;
    }

    .btn-ghost {
      color: var(--text-light);
      border-color: rgba(255, 255, 255, .24);
      background: rgba(255, 255, 255, .08);
    }

    .btn-ghost:hover {
      transform: translateY(-2px);
      background: rgba(255, 255, 255, .15);
      color: #fff;
    }

    .btn-lightline {
      color: var(--primary);
      background: #fff;
      border-color: rgba(183, 31, 75, .16);
      box-shadow: var(--shadow-soft);
    }

    .btn-lightline:hover {
      color: #fff;
      background: var(--primary);
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .badge-soft {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(183, 31, 75, .10);
      color: var(--primary);
      font-weight: 800;
      font-size: 14px;
    }

    .page-hero {
      position: relative;
      overflow: hidden;
      color: var(--text-light);
      background:
        linear-gradient(90deg, rgba(15,17,23,.92) 0%, rgba(15,17,23,.74) 52%, rgba(15,17,23,.50) 100%),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 86px;
      background: linear-gradient(180deg, transparent, #fbfaf7);
      pointer-events: none;
    }

    .article-hero-inner {
      position: relative;
      z-index: 1;
      padding: 72px 0 96px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      gap: 46px;
      align-items: end;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin: 0 0 18px;
      color: rgba(248, 246, 242, .72);
      font-size: 14px;
    }

    .breadcrumb a {
      color: rgba(248, 246, 242, .86);
      transition: color .2s ease;
    }

    .breadcrumb a:hover {
      color: #fff;
    }

    .breadcrumb span {
      color: rgba(248, 246, 242, .55);
    }

    .article-title {
      margin: 0;
      max-width: 820px;
      font-size: clamp(32px, 4.6vw, 56px);
      line-height: 1.13;
      font-weight: 900;
      letter-spacing: -.04em;
    }

    .article-summary {
      margin: 22px 0 0;
      max-width: 790px;
      color: #e5ded8;
      font-size: clamp(16px, 1.7vw, 19px);
      line-height: 1.85;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .meta-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border: 1px solid rgba(255, 255, 255, .20);
      border-radius: 999px;
      background: rgba(255, 255, 255, .08);
      color: rgba(248, 246, 242, .86);
      font-size: 14px;
      font-weight: 700;
    }

    .hero-card {
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .10);
      backdrop-filter: blur(16px);
      box-shadow: 0 24px 60px rgba(0, 0, 0, .22);
      overflow: hidden;
    }

    .hero-card img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .hero-card-body {
      padding: 22px;
    }

    .hero-card-body h2 {
      margin: 0 0 10px;
      color: #fff;
      font-size: 20px;
      font-weight: 900;
    }

    .hero-card-body p {
      margin: 0;
      color: rgba(248, 246, 242, .76);
      font-size: 15px;
    }

    .main-content {
      padding: 72px 0 88px;
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 34px;
      align-items: start;
    }

    .content-card,
    .side-card,
    .info-card,
    .faq-card,
    .cta-panel {
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: var(--panel);
      box-shadow: var(--shadow-soft);
    }

    .content-card {
      padding: clamp(24px, 4vw, 46px);
    }

    .article-content {
      color: #2b2830;
      font-size: 17px;
      line-height: 1.95;
    }

    .article-content h2,
    .article-content h3,
    .article-content h4 {
      color: var(--text);
      font-weight: 900;
      line-height: 1.35;
      margin: 34px 0 14px;
    }

    .article-content h2 {
      font-size: clamp(24px, 3vw, 32px);
      padding-bottom: 12px;
      border-bottom: 1px solid var(--line);
    }

    .article-content h3 {
      font-size: 23px;
    }

    .article-content h4 {
      font-size: 19px;
    }

    .article-content p {
      margin: 0 0 18px;
    }

    .article-content a {
      color: var(--primary);
      font-weight: 800;
      border-bottom: 1px solid rgba(183, 31, 75, .25);
      transition: color .2s ease, border-color .2s ease;
    }

    .article-content a:hover {
      color: var(--primary-dark);
      border-color: var(--primary-dark);
    }

    .article-content ul,
    .article-content ol {
      margin: 18px 0 22px;
      padding-left: 22px;
    }

    .article-content li {
      margin: 8px 0;
    }

    .article-content blockquote {
      margin: 28px 0;
      padding: 20px 22px;
      border-left: 4px solid var(--primary);
      border-radius: 0 var(--radius) var(--radius) 0;
      background: rgba(183, 31, 75, .07);
      color: #3a343c;
    }

    .article-content img {
      border-radius: var(--radius-lg);
      margin: 28px 0;
      box-shadow: var(--shadow-soft);
    }

    .not-found {
      text-align: center;
      padding: 58px 20px;
    }

    .not-found h2 {
      margin: 0 0 14px;
      font-size: 30px;
      font-weight: 900;
      color: var(--text);
    }

    .not-found p {
      margin: 0 0 24px;
      color: var(--muted);
    }

    .article-aside {
      position: sticky;
      top: calc(var(--header-h) + 22px);
      display: grid;
      gap: 18px;
    }

    .side-card {
      padding: 22px;
    }

    .side-card.dark {
      color: var(--text-light);
      background:
        linear-gradient(145deg, rgba(15,17,23,.96), rgba(39,22,33,.94)),
        url("/assets/images/backpic/back-3.jpg") center/cover no-repeat;
      border-color: rgba(255,255,255,.12);
    }

    .side-card h2,
    .side-card h3 {
      margin: 0 0 14px;
      font-size: 20px;
      font-weight: 900;
    }

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

    .side-card.dark p {
      color: rgba(248, 246, 242, .74);
    }

    .notice-list {
      display: grid;
      gap: 12px;
      padding: 0;
      margin: 16px 0 0;
      list-style: none;
    }

    .notice-list li {
      display: flex;
      gap: 10px;
      color: #3a343c;
      font-size: 15px;
    }

    .notice-list li::before {
      content: "";
      width: 8px;
      height: 8px;
      margin-top: 10px;
      border-radius: 50%;
      background: var(--primary);
      flex: 0 0 auto;
    }

    .dark .notice-list li {
      color: rgba(248, 246, 242, .82);
    }

    .dark .notice-list li::before {
      background: var(--accent);
    }

    .mini-search {
      display: flex;
      margin-top: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      background: #fff;
    }

    .mini-search input {
      width: 100%;
      min-width: 0;
      border: 0;
      outline: none;
      padding: 12px 14px;
      color: var(--text);
      background: transparent;
    }

    .mini-search input:focus {
      box-shadow: inset 0 0 0 2px rgba(183, 31, 75, .20);
    }

    .mini-search button {
      padding: 0 16px;
      background: var(--primary);
      color: #fff;
      font-weight: 800;
      transition: background .2s ease;
    }

    .mini-search button:hover {
      background: var(--primary-dark);
    }

    .section {
      padding: 0 0 82px;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 22px;
      margin-bottom: 26px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      margin-bottom: 10px;
      color: var(--primary);
      font-weight: 900;
      letter-spacing: .02em;
    }

    .section-title {
      margin: 0;
      font-size: clamp(28px, 3.5vw, 40px);
      line-height: 1.25;
      font-weight: 900;
      letter-spacing: -.03em;
    }

    .section-desc {
      max-width: 620px;
      margin: 10px 0 0;
      color: var(--muted);
      font-size: 16px;
    }

    .info-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .info-card {
      padding: 24px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .info-card:hover {
      transform: translateY(-4px);
      border-color: rgba(183, 31, 75, .24);
      box-shadow: var(--shadow);
    }

    .info-icon {
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: var(--radius);
      margin-bottom: 16px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      font-weight: 900;
      box-shadow: 0 12px 28px rgba(183, 31, 75, .22);
    }

    .info-card h3 {
      margin: 0 0 10px;
      font-size: 20px;
      font-weight: 900;
    }

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

    .feature-strip {
      overflow: hidden;
      border-radius: var(--radius-lg);
      background: var(--bg);
      color: var(--text-light);
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: 42% 1fr;
      min-height: 360px;
    }

    .feature-strip img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .feature-copy {
      padding: clamp(28px, 5vw, 52px);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .feature-copy h2 {
      margin: 0 0 16px;
      font-size: clamp(28px, 3.3vw, 42px);
      font-weight: 900;
      line-height: 1.2;
    }

    .feature-copy p {
      margin: 0 0 22px;
      color: rgba(248, 246, 242, .76);
      font-size: 16px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 4px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.10);
      color: rgba(248,246,242,.88);
      border: 1px solid rgba(255,255,255,.13);
      font-size: 14px;
      font-weight: 700;
    }

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

    .faq-card {
      padding: 24px;
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .faq-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow);
    }

    .faq-card h3 {
      margin: 0 0 10px;
      font-size: 19px;
      font-weight: 900;
    }

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

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: clamp(30px, 5vw, 52px);
      color: var(--text-light);
      background:
        radial-gradient(circle at 18% 20%, rgba(215,157,54,.24), transparent 30%),
        linear-gradient(135deg, #171a23 0%, #321827 58%, #0f1117 100%);
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      width: 280px;
      height: 280px;
      right: -90px;
      bottom: -120px;
      border-radius: 50%;
      background: rgba(183, 31, 75, .34);
      filter: blur(10px);
      pointer-events: none;
    }

    .cta-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 28px;
      align-items: center;
    }

    .cta-content h2 {
      margin: 0 0 12px;
      font-size: clamp(28px, 3.4vw, 42px);
      font-weight: 900;
      line-height: 1.22;
    }

    .cta-content p {
      max-width: 720px;
      margin: 0;
      color: rgba(248, 246, 242, .76);
    }

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

    .site-footer {
      background: var(--bg);
      color: var(--text-light);
      padding: 56px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .9fr;
      gap: 34px;
      padding-bottom: 34px;
      border-bottom: 1px solid var(--line-light);
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .footer-col p {
      max-width: 520px;
      margin: 0;
      color: var(--muted-light);
      font-size: 15px;
    }

    .footer-col h3 {
      margin: 0 0 14px;
      font-size: 17px;
      font-weight: 900;
    }

    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 9px;
      color: var(--muted-light);
      font-size: 15px;
    }

    .footer-col a {
      color: var(--muted-light);
      transition: color .2s ease, padding-left .2s ease;
    }

    .footer-col a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .copyright {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding-top: 24px;
      color: rgba(201, 193, 189, .76);
      font-size: 14px;
    }

    :focus-visible {
      outline: 3px solid rgba(215, 157, 54, .52);
      outline-offset: 3px;
    }

    @media (max-width: 1024px) {
      :root {
        --header-h: 68px;
      }

      .brand-name {
        max-width: 280px;
      }

      .nav-action {
        display: none;
      }

      .article-hero-inner {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 58px 0 84px;
      }

      .hero-card {
        max-width: 520px;
      }

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

      .article-aside {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

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

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

      .feature-strip img {
        max-height: 360px;
      }

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

      .footer-col:first-child {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

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

      .main-nav {
        position: fixed;
        left: 14px;
        right: 14px;
        top: calc(var(--header-h) + 10px);
        display: grid;
        gap: 8px;
        padding: 14px;
        border: 1px solid var(--line-light);
        border-radius: var(--radius-lg);
        background: rgba(15, 17, 23, .96);
        box-shadow: var(--shadow);
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        transition: transform .2s ease, opacity .2s ease, visibility .2s ease;
      }

      .menu-open .main-nav {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
      }

      .main-nav a {
        padding: 12px 14px;
      }

      .brand-name {
        max-width: 210px;
        font-size: 15px;
      }

      .page-hero::after {
        height: 58px;
      }

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

      .main-content {
        padding: 54px 0 68px;
      }

      .article-aside,
      .info-grid,
      .faq-grid,
      .cta-content {
        grid-template-columns: 1fr;
      }

      .section {
        padding-bottom: 62px;
      }

      .section-head {
        display: block;
      }

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

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

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

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

      .brand-name {
        max-width: 170px;
      }

      .article-hero-inner {
        padding: 44px 0 72px;
      }

      .article-title {
        word-break: break-word;
      }

      .article-meta {
        gap: 8px;
      }

      .meta-pill {
        width: 100%;
        justify-content: center;
      }

      .content-card {
        padding: 22px 18px;
        border-radius: var(--radius);
      }

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

      .btn {
        width: 100%;
      }

      .hero-card-body,
      .side-card,
      .info-card,
      .faq-card {
        padding: 20px;
      }

      .footer-brand {
        align-items: flex-start;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}