/* roulang page: index */
/* ============ 设计变量 ============ */
  :root {
    --color-bg: #0B0E13;
    --color-card: #131A22;
    --color-line: #232B36;
    --color-primary: #FF5F45;
    --color-secondary: #F5B841;
    --color-success: #00D1A6;
    --color-text: #F2F4F8;
    --color-text-dim: #8A93A3;
    --gradient-brand: linear-gradient(135deg, #FF5F45 0%, #F5B841 100%);
    --shadow-card: 0 12px 32px rgba(0,0,0,.45);
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
  }

  /* ============ 基础 Reset ============ */
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    font-weight: 400;
    line-height: 1.8;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }
  a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease;
  }
  img {
    max-width: 100%;
    display: block;
  }
  button, input {
    font-family: inherit;
    border: none;
    outline: none;
  }
  button {
    cursor: pointer;
  }
  h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.3;
  }

  /* ============ 容器 ============ */
  .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ============ 头部导航 ============ */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(11, 14, 19, 0.92);
    border-bottom: 1px solid transparent;
    border-image: linear-gradient(90deg, #FF5F45 0%, rgba(255,95,69,0) 100%) 1;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: box-shadow .3s ease;
  }
  .site-header.scrolled {
    box-shadow: 0 4px 30px rgba(0,0,0,.4);
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
  }
  .site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .logo-icon {
    display: flex;
    align-items: center;
  }
  .logo-text {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 1px;
    line-height: 1.2;
  }
  .logo-ob {
    color: #fff;
  }
  .logo-video {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
  }
  .nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-dim);
    padding: 8px 2px;
    position: relative;
    transition: color .25s ease;
  }
  .nav-link:hover {
    color: var(--color-primary);
  }
  .nav-link.active {
    color: var(--color-text);
  }
  .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
  }
  .nav-tools {
    display: flex;
    align-items: center;
    gap: 18px;
  }
  .online-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--color-success);
    font-weight: 500;
  }
  .online-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-success);
    position: relative;
    animation: pulse-dot 2s infinite;
  }
  @keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0,209,166,.4); }
    50% { box-shadow: 0 0 0 6px rgba(0,209,166,0); }
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-brand);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    border-radius: 8px;
    padding: 10px 24px;
    min-height: 44px;
    position: relative;
    transition: all .3s cubic-bezier(.4,0,.2,1);
    box-shadow: 0 2px 8px rgba(255,95,69,.15);
  }
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,95,69,.25);
  }
  .btn-primary:active {
    transform: translateY(1px);
  }
  .btn-primary:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }
  .btn-badge {
    position: absolute;
    top: -8px;
    right: -10px;
    background: var(--color-secondary);
    color: #1a1408;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 8px;
    border-radius: 20px;
    letter-spacing: .5px;
    box-shadow: 0 2px 6px rgba(245,184,65,.3);
  }
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid #3A465A;
    color: #fff;
    font-weight: 500;
    font-size: 15px;
    border-radius: 8px;
    padding: 10px 24px;
    min-height: 44px;
    transition: all .3s ease;
  }
  .btn-ghost:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
  }
  .btn-ghost:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }
  .hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: transparent;
    border-radius: 8px;
  }
  .hamburger span {
    display: block;
    height: 2px;
    width: 22px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all .3s ease;
  }
  .hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .hamburger.open span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* 移动端抽屉 */
  .mobile-drawer {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(11,14,19,.98);
    backdrop-filter: blur(12px);
    padding: 24px;
    z-index: 99;
    border-bottom: 1px solid var(--color-line);
    display: none;
  }
  .mobile-drawer.open {
    display: block;
  }
  .mobile-drawer a {
    display: block;
    padding: 14px 0;
    font-size: 17px;
    font-weight: 500;
    color: var(--color-text-dim);
    border-bottom: 1px solid rgba(35,43,54,.5);
  }
  .mobile-drawer a:hover {
    color: var(--color-primary);
  }
  .mobile-drawer a.active {
    color: var(--color-primary);
  }
  .mobile-drawer .drawer-cta {
    margin-top: 20px;
    width: 100%;
    text-align: center;
  }
  .mobile-drawer .drawer-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-success);
    font-size: 14px;
    margin-top: 16px;
  }

  /* ============ Hero 首屏 ============ */
  .hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-bg);
    padding-top: 72px;
  }
  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(90deg, rgba(11,14,19,.95) 0%, rgba(11,14,19,.75) 45%, rgba(11,14,19,.45) 100%), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    z-index: 0;
    animation: bgFadeIn 1.2s ease;
  }
  @keyframes bgFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  .hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    width: 100%;
  }
  .hero-copy {
    padding: 60px 0;
  }
  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,95,69,.12);
    border: 1px solid rgba(255,95,69,.25);
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 30px;
    letter-spacing: .5px;
    margin-bottom: 28px;
  }
  .hero-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 22px;
    letter-spacing: 1px;
  }
  .hero-title .highlight {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .hero-sub {
    font-size: 18px;
    color: var(--color-text-dim);
    max-width: 500px;
    margin-bottom: 36px;
    line-height: 1.7;
  }
  .hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }
  .hero-media {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,.6);
    border: 1px solid rgba(255,255,255,.06);
  }
  .hero-media img {
    width: 100%;
    height: 460px;
    object-fit: cover;
  }
  .hero-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,95,69,0) 50%, rgba(255,95,69,.12) 100%);
  }
  .hero-media-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    z-index: 2;
    background: rgba(11,14,19,.7);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    padding: 14px 20px;
    border: 1px solid rgba(255,255,255,.08);
  }
  .hero-media-badge p {
    font-size: 14px;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .hero-media-badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-success);
    flex-shrink: 0;
  }

  /* ============ 数据带 ============ */
  .data-strip {
    background: #0D1117;
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    padding: 52px 0;
    position: relative;
    overflow: hidden;
  }
  .data-strip::before {
    content: '';
    position: absolute;
    top: -60%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: radial-gradient(ellipse, rgba(255,95,69,.06) 0%, transparent 70%);
    pointer-events: none;
  }
  .data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
    z-index: 2;
  }
  .data-item {
    text-align: center;
    padding: 10px 24px;
    position: relative;
  }
  .data-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 60px;
    width: 1px;
    background: var(--color-line);
  }
  .data-value {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.2;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
  }
  .data-label {
    font-size: 13px;
    color: var(--color-text-dim);
    font-weight: 500;
    margin-top: 6px;
    letter-spacing: .5px;
  }

  /* ============ 品牌故事 ============ */
  .story {
    padding: 100px 0;
    background: var(--color-bg);
  }
  .story-grid {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 72px;
    align-items: start;
  }
  .story-left .section-label {
    font-size: 13px;
    color: var(--color-primary);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
  }
  .story-left h2 {
    font-size: clamp(28px, 3vw, 42px);
    line-height: 1.3;
    margin-bottom: 20px;
  }
  .story-left p {
    color: var(--color-text-dim);
    font-size: 16px;
    line-height: 1.8;
    max-width: 460px;
  }
  .story-cards {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }
  .story-card {
    display: flex;
    gap: 20px;
    background: var(--color-card);
    border: 1px solid var(--color-line);
    border-radius: 12px;
    padding: 24px;
    transition: all .3s ease;
  }
  .story-card:hover {
    border-color: rgba(255,95,69,.3);
    box-shadow: var(--shadow-card);
    transform: translateY(-2px);
  }
  .story-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,95,69,.1);
    border-radius: 12px;
    color: var(--color-primary);
  }
  .story-card h3 {
    font-size: 18px;
    margin-bottom: 6px;
  }
  .story-card p {
    font-size: 14px;
    color: var(--color-text-dim);
    line-height: 1.7;
  }

  /* ============ 精选内容卡 ============ */
  .featured {
    padding: 100px 0;
    background: #0D1117;
  }
  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 48px;
    gap: 20px;
  }
  .section-head h2 {
    font-size: clamp(26px, 3vw, 38px);
  }
  .section-head .section-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-dim);
    font-size: 14px;
    font-weight: 500;
    transition: color .3s ease;
  }
  .section-head .section-more:hover {
    color: var(--color-primary);
  }
  .section-head .section-more svg {
    transition: transform .3s ease;
  }
  .section-head .section-more:hover svg {
    transform: translateX(4px);
  }
  .featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
  .featured-card {
    background: var(--color-card);
    border: 1px solid var(--color-line);
    border-radius: 16px;
    overflow: hidden;
    transition: all .35s cubic-bezier(.4,0,.2,1);
    display: flex;
    flex-direction: column;
  }
  .featured-card:hover {
    border-color: rgba(255,95,69,.3);
    box-shadow: var(--shadow-card);
    transform: translateY(-4px);
  }
  .featured-img {
    position: relative;
    overflow: hidden;
    height: 220px;
  }
  .featured-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s cubic-bezier(.4,0,.2,1);
  }
  .featured-card:hover .featured-img img {
    transform: scale(1.05);
  }
  .featured-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(11,14,19,.5) 100%);
  }
  .featured-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    background: rgba(11,14,19,.8);
    backdrop-filter: blur(4px);
    color: var(--color-secondary);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 30px;
    border: 1px solid rgba(245,184,65,.2);
  }
  .featured-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }
  .featured-body h3 {
    font-size: 18px;
    line-height: 1.5;
    margin-bottom: 10px;
    transition: color .3s ease;
  }
  .featured-card:hover .featured-body h3 {
    color: var(--color-primary);
  }
  .featured-body p {
    font-size: 14px;
    color: var(--color-text-dim);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 18px;
  }
  .featured-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--color-text-dim);
    border-top: 1px solid rgba(35,43,54,.5);
    padding-top: 16px;
  }
  .featured-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-primary);
    font-weight: 500;
    transition: gap .3s ease;
  }
  .featured-link:hover {
    gap: 8px;
  }

  /* ============ CMS 动态区 ============ */
  .cms-posts {
    padding: 100px 0;
    background: var(--color-bg);
  }
  .cms-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .cms-item {
    background: var(--color-card);
    border: 1px solid var(--color-line);
    border-radius: 12px;
    padding: 24px 28px;
    display: flex;
    align-items: center;
    gap: 24px;
    transition: all .3s ease;
  }
  .cms-item:hover {
    border-color: rgba(255,95,69,.3);
    box-shadow: var(--shadow-card);
    transform: translateX(4px);
  }
  .cms-cat {
    flex-shrink: 0;
    background: rgba(255,95,69,.1);
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 30px;
    white-space: nowrap;
  }
  .cms-body {
    flex: 1;
    min-width: 0;
  }
  .cms-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
    display: block;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color .3s ease;
  }
  .cms-title:hover {
    color: var(--color-primary);
  }
  .cms-summary {
    font-size: 14px;
    color: var(--color-text-dim);
    line-height: 1.6;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .cms-time {
    flex-shrink: 0;
    font-size: 13px;
    color: var(--color-text-dim);
    white-space: nowrap;
  }
  .cms-read {
    flex-shrink: 0;
    color: var(--color-secondary);
    font-size: 13px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap .3s ease;
  }
  .cms-read:hover {
    gap: 8px;
  }
  .empty-state {
    background: var(--color-card);
    border: 1px dashed var(--color-line);
    border-radius: 16px;
    padding: 80px 20px;
    text-align: center;
    color: var(--color-text-dim);
  }
  .empty-state .empty-icon {
    font-size: 42px;
    margin-bottom: 16px;
    display: block;
  }
  .empty-state p {
    font-size: 16px;
  }

  /* ============ 信任背书 ============ */
  .trust {
    padding: 90px 0;
    background: #0D1117;
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
  }
  .trust-top {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
  }
  .trust-top h2 {
    font-size: clamp(24px, 3vw, 34px);
    margin-bottom: 16px;
  }
  .trust-top p {
    color: var(--color-text-dim);
    font-size: 16px;
    line-height: 1.8;
  }
  .trust-logos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 780px;
    margin: 0 auto;
  }
  .trust-logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 72px;
    background: rgba(255,255,255,.03);
    border: 1px solid var(--color-line);
    border-radius: 12px;
    color: var(--color-text-dim);
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 1px;
    opacity: .7;
    transition: all .3s ease;
  }
  .trust-logo-item:hover {
    opacity: 1;
    border-color: rgba(255,255,255,.1);
  }

  /* ============ CTA 转化区 ============ */
  .cta-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    background: var(--gradient-brand);
  }
  .cta-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
  }
  .cta-copy h2 {
    font-size: clamp(24px, 3vw, 38px);
    color: #1a1408;
    line-height: 1.3;
    margin-bottom: 14px;
  }
  .cta-copy p {
    font-size: 16px;
    color: rgba(26,20,8,.75);
    line-height: 1.7;
  }
  .cta-form-wrapper {
    background: rgba(11,14,19,.85);
    backdrop-filter: blur(8px);
    border-radius: 16px;
    padding: 36px;
    border: 1px solid rgba(255,255,255,.12);
  }
  .cta-form .form-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-dim);
    margin-bottom: 8px;
    display: block;
  }
  .cta-form .form-input {
    width: 100%;
    height: 48px;
    background: #1B222D;
    border: 1px solid #2A3547;
    border-radius: 8px;
    padding: 0 16px;
    font-size: 15px;
    color: var(--color-text);
    transition: all .3s ease;
    margin-bottom: 16px;
  }
  .cta-form .form-input::placeholder {
    color: #5C6678;
  }
  .cta-form .form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255,95,69,.2);
  }
  .cta-form .btn-submit {
    width: 100%;
    height: 48px;
    background: var(--gradient-brand);
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    border-radius: 8px;
    transition: all .3s ease;
    box-shadow: 0 4px 14px rgba(255,95,69,.3);
  }
  .cta-form .btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255,95,69,.4);
  }
  .cta-form .btn-submit:active {
    transform: translateY(1px);
  }
  .cta-agree {
    font-size: 12px;
    color: var(--color-text-dim);
    margin-top: 12px;
    text-align: center;
  }
  .cta-agree a {
    color: var(--color-secondary);
    text-decoration: underline;
    text-decoration-style: dashed;
    text-underline-offset: 4px;
  }

  /* ============ FAQ 区 ============ */
  .faq {
    padding: 100px 0;
    background: var(--color-bg);
  }
  .faq-head {
    text-align: center;
    margin-bottom: 48px;
  }
  .faq-head h2 {
    font-size: clamp(24px, 3vw, 36px);
    margin-bottom: 12px;
  }
  .faq-head p {
    color: var(--color-text-dim);
    font-size: 16px;
  }
  .faq-list {
    max-width: 780px;
    margin: 0 auto;
    background: rgba(255,255,255,.02);
    border-radius: 16px;
    border: 1px solid var(--color-line);
    padding: 0 32px;
  }
  .faq-item {
    border-bottom: 1px solid #1F2833;
    padding: 24px 0;
  }
  .faq-item:last-child {
    border-bottom: none;
  }
  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: transparent;
    color: var(--color-text);
    font-size: 17px;
    font-weight: 600;
    text-align: left;
    padding: 0;
    line-height: 1.5;
    transition: color .3s ease;
  }
  .faq-question:hover {
    color: var(--color-primary);
  }
  .faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    position: relative;
    transition: transform .3s ease;
  }
  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-text-dim);
    border-radius: 2px;
    transition: all .3s ease;
  }
  .faq-icon::before {
    width: 14px;
    height: 2px;
  }
  .faq-icon::after {
    width: 2px;
    height: 14px;
  }
  .faq-item.open .faq-icon {
    transform: rotate(45deg);
  }
  .faq-item.open .faq-icon::before,
  .faq-item.open .faq-icon::after {
    background: var(--color-primary);
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
  }
  .faq-item.open .faq-answer {
    max-height: 240px;
  }
  .faq-answer p {
    padding-top: 14px;
    font-size: 15px;
    color: var(--color-text-dim);
    line-height: 1.8;
  }

  /* ============ 页脚 ============ */
  .site-footer {
    background: #07090C;
    border-top: 1px solid #1A222C;
    padding-top: 64px;
    position: relative;
  }
  .site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-brand);
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 56px;
  }
  .footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    font-size: 20px;
    font-weight: 800;
  }
  .footer-brand p {
    font-size: 14px;
    color: var(--color-text-dim);
    line-height: 1.7;
    margin-bottom: 20px;
  }
  .social-icons {
    display: flex;
    gap: 12px;
  }
  .social-icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,.04);
    border: 1px solid var(--color-line);
    color: var(--color-text-dim);
    transition: all .3s ease;
  }
  .social-icon:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(255,95,69,.08);
  }
  .footer-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: 1px;
  }
  .footer-links a {
    display: block;
    font-size: 14px;
    color: var(--color-text-dim);
    padding: 6px 0;
    transition: color .25s ease;
  }
  .footer-links a:hover {
    color: var(--color-primary);
  }
  .footer-contact {
    font-size: 14px;
    color: var(--color-text-dim);
    line-height: 2;
  }
  .footer-qr {
    width: 120px;
    height: 120px;
    border-radius: 12px;
    background: #12161C;
    border: 1px solid var(--color-line);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 12px;
    color: var(--color-text-dim);
    font-size: 11px;
    text-align: center;
  }
  .footer-bottom {
    border-top: 1px solid #1A222C;
    padding: 20px 0;
    text-align: center;
    font-size: 12px;
    color: #4A5363;
  }

  /* ============ 响应式断点 ============ */
  @media (max-width: 1024px) {
    .nav-links, .nav-tools .online-status {
      display: none;
    }
    .hamburger {
      display: flex;
    }
    .featured-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .story-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }
    .cta-inner {
      grid-template-columns: 1fr;
      gap: 36px;
    }
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }
  }
  @media (max-width: 768px) {
    .container {
      padding: 0 16px;
    }
    .hero {
      min-height: auto;
      padding: 100px 0 60px;
    }
    .hero-content {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .hero-media img {
      height: 320px;
    }
    .data-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 24px 0;
    }
    .data-item:nth-child(2)::after {
      display: none;
    }
    .data-value {
      font-size: 32px;
    }
    .featured-grid {
      grid-template-columns: 1fr;
    }
    .cms-item {
      flex-direction: column;
      align-items: flex-start;
      gap: 12px;
      padding: 20px;
    }
    .cms-time, .cms-read {
      display: none;
    }
    .trust-logos {
      grid-template-columns: 1fr;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .faq-list {
      padding: 0 20px;
    }
    .section-head {
      flex-direction: column;
      align-items: flex-start;
      gap: 12px;
    }
  }
  @media (max-width: 520px) {
    body {
      font-size: 15px;
    }
    .hero-btns {
      flex-direction: column;
      width: 100%;
    }
    .hero-btns .btn-primary,
    .hero-btns .btn-ghost {
      width: 100%;
    }
    .story-card {
      flex-direction: column;
      gap: 14px;
    }
    .data-item {
      padding: 10px 12px;
    }
    .data-value {
      font-size: 28px;
    }
    .cta-form-wrapper {
      padding: 24px 20px;
    }
  }

/* roulang page: article */
:root {
            --color-bg: #0B0E13;
            --color-card: #131A22;
            --color-line: #232B36;
            --color-primary: #FF5F45;
            --color-secondary: #F5B841;
            --color-success: #00D1A6;
            --color-text: #F2F4F8;
            --color-text-sub: #8A93A3;
            --gradient-brand: linear-gradient(135deg, #FF5F45 0%, #F5B841 100%);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, .45);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        *, *::before, *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--color-bg);
            color: var(--color-text);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 按钮系统 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border: none;
            border-radius: var(--radius-sm);
            height: 48px;
            padding: 0 32px;
            transition: transform .25s, box-shadow .25s;
            white-space: nowrap;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 95, 69, .25);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-primary:focus {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-sm {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--color-text);
            border: 1px solid #3A465A;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            height: 48px;
            padding: 0 24px;
            transition: border-color .25s, color .25s;
        }
        .btn-ghost:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .btn-ghost:focus {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 14, 19, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-line);
        }
        .site-header::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -1px;
            height: 1px;
            background: linear-gradient(to right, var(--color-primary), transparent);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: .5px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 95, 69, .12);
            border: 1px solid rgba(255, 95, 69, .25);
        }
        .logo-icon svg {
            width: 24px;
            height: 24px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            height: 42px;
            padding: 0 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-sub);
            border-radius: 6px;
            position: relative;
            transition: color .2s;
        }
        .nav-link:hover {
            color: var(--color-primary);
        }
        .nav-link.active {
            color: var(--color-text);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient-brand);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .online-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-sub);
            padding: 4px 12px;
            border: 1px solid var(--color-line);
            border-radius: 999px;
            background: rgba(0, 209, 166, .06);
        }
        .online-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-success);
            animation: pulse 1.6s ease-in-out infinite;
        }
        @keyframes pulse {
            0%, 100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(0, 209, 166, .4);
            }
            50% {
                opacity: .7;
                box-shadow: 0 0 0 5px rgba(0, 209, 166, 0);
            }
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--color-line);
            border-radius: 8px;
            background: transparent;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: border-color .2s;
        }
        .menu-toggle:hover {
            border-color: var(--color-primary);
        }
        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform .3s;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 200;
            background: rgba(11, 14, 19, .98);
            padding-top: 100px;
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s, visibility .3s;
        }
        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 420px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .mobile-nav-link {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 52px;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-line);
            transition: color .2s;
        }
        .mobile-nav-link:hover {
            color: var(--color-primary);
        }
        .mobile-cta {
            margin-top: 24px;
        }
        .menu-close {
            position: absolute;
            top: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--color-line);
            border-radius: 10px;
            color: var(--color-text-sub);
            font-size: 22px;
        }
        .menu-close:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        /* 文章页主体 */
        .article-page {
            padding: 48px 0 80px;
        }
        .article-header {
            max-width: 800px;
            margin: 0 auto 40px;
            text-align: center;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-sub);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--color-text-sub);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: #3A465A;
        }
        .article-header h1 {
            font-size: clamp(28px, 5vw, 42px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: .5px;
            color: var(--color-text);
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px 24px;
            align-items: center;
            font-size: 14px;
            color: var(--color-text-sub);
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .meta-item svg {
            width: 15px;
            height: 15px;
            opacity: .7;
        }
        .meta-divider {
            width: 1px;
            height: 14px;
            background: var(--color-line);
        }
        .article-summary {
            background: #1B222D;
            border: 1px solid var(--color-line);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            margin: 32px 0 0;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            font-size: 15px;
            color: var(--color-text-sub);
            line-height: 1.8;
            text-align: left;
        }
        .article-content {
            max-width: 760px;
            margin: 0 auto;
        }
        .article-content p {
            margin-bottom: 28px;
            font-size: 16px;
            line-height: 1.8;
            color: #C2CBD8;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 40px 0 16px;
            line-height: 1.3;
            color: var(--color-text);
        }
        .article-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 32px 0 12px;
            line-height: 1.3;
            color: var(--color-text);
        }
        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            background: rgba(255, 95, 69, .06);
            padding: 16px 20px;
            margin: 32px 0;
            border-radius: 0 8px 8px 0;
            color: var(--color-text-sub);
        }
        .article-content ul {
            margin: 0 0 28px;
            padding-left: 22px;
            list-style: disc;
        }
        .article-content ol {
            margin: 0 0 28px;
            padding-left: 22px;
            list-style: decimal;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content img {
            width: 100%;
            border-radius: 8px;
            border: 1px solid var(--color-line);
            margin: 32px 0;
        }
        .article-content a {
            color: var(--color-primary);
            border-bottom: 1px dashed var(--color-primary);
        }
        .article-content mark {
            background: linear-gradient(135deg, rgba(255, 95, 69, .28), rgba(245, 184, 65, .28));
            color: var(--color-text);
            padding: 0 4px;
            border-radius: 3px;
        }
        .article-content code {
            background: #161D27;
            border: 1px solid var(--color-line);
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 14px;
        }
        .article-content pre {
            background: #161D27;
            border: 1px solid var(--color-line);
            border-radius: 8px;
            padding: 20px;
            overflow-x: auto;
            margin-bottom: 28px;
        }
        .article-content pre code {
            border: none;
            padding: 0;
            background: transparent;
        }

        /* 标签区 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 760px;
            margin: 48px auto 0;
            padding-top: 32px;
            border-top: 1px solid var(--color-line);
        }
        .tag-chip {
            display: inline-flex;
            align-items: center;
            background: #161D27;
            border: 1px solid var(--color-line);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-sub);
            transition: all .25s;
        }
        .tag-chip:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        /* 相关推荐 */
        .related-section {
            max-width: 1200px;
            margin: 72px auto 0;
        }
        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .section-heading h2 {
            font-size: 24px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-text);
        }
        .section-heading .heading-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-sub);
            transition: color .2s;
        }
        .section-heading .heading-link:hover {
            color: var(--color-primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--color-card);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform .35s cubic-bezier(.4, 0, .2, 1), box-shadow .35s, border-color .35s;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(255, 95, 69, .3);
        }
        .card-img {
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .35s cubic-bezier(.4, 0, .2, 1);
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .card-body {
            padding: 20px 24px 24px;
        }
        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-secondary);
            margin-bottom: 8px;
            letter-spacing: 1px;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .card-body p {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.7;
        }
        .back-to-list {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }

        /* 无文章状态 */
        .not-found {
            min-height: 50vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 60px 24px;
        }
        .not-found h1 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .not-found p {
            color: var(--color-text-sub);
            font-size: 16px;
            margin-bottom: 32px;
        }

        /* 页脚 */
        .site-footer {
            background: #07090C;
            border-top: 2px solid transparent;
            border-image: linear-gradient(to right, var(--color-primary), var(--color-secondary), transparent) 1;
            padding-top: 56px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 280px;
        }
        .social-icons {
            display: flex;
            gap: 12px;
        }
        .social-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            border: 1px solid var(--color-line);
            color: var(--color-text-sub);
            transition: all .25s;
        }
        .social-icon:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-2px);
        }
        .footer-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--color-text-sub);
            transition: color .2s;
        }
        .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-contact {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.8;
        }
        .qr-placeholder {
            width: 120px;
            height: 120px;
            border-radius: 10px;
            border: 1px solid var(--color-line);
            background: #1B222D;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--color-text-sub);
            margin-top: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid #1A222C;
            padding: 20px 0;
            text-align: center;
            font-size: 12px;
            color: var(--color-text-sub);
        }

        /* CMS_RUNTIME_PLACEHOLDER 相关推荐区隐藏空态说明 */
        .related-empty {
            display: none;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .menu-toggle {
                display: inline-flex;
            }
            .mobile-menu {
                display: block;
            }
            .online-badge {
                display: none;
            }
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .article-page {
                padding: 32px 0 48px;
            }
            .article-header h1 {
                font-size: 28px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .qr-placeholder {
                margin-left: 0;
            }
            .article-meta {
                gap: 10px 16px;
            }
            .meta-divider {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .btn-primary {
                padding: 0 20px;
            }
            .article-summary {
                padding: 16px 18px;
            }
            .card-body h3 {
                font-size: 16px;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
  :root {
    --color-bg: #0B0E13;
    --color-card: #131A22;
    --color-line: #232B36;
    --color-primary: #FF5F45;
    --color-secondary: #F5B841;
    --color-success: #00D1A6;
    --color-text: #F2F4F8;
    --color-text-secondary: #8A93A3;
    --gradient-brand: linear-gradient(135deg, #FF5F45 0%, #F5B841 100%);
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-hover: 0 12px 32px rgba(0, 0, 0, .45);
    --container: 1200px;
  }

  /* ========== 重置与基础 ========== */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; cursor: pointer; border: none; background: none; }
  ul, ol { list-style: none; }
  .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

  /* ========== 按钮系统 ========== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    min-height: 44px;
    padding: 0 28px;
    font-size: 15px;
    transition: all .25s ease;
  }
  .btn-primary {
    background: var(--gradient-brand);
    color: #fff;
    height: 48px;
    box-shadow: 0 4px 14px rgba(255, 95, 69, .15);
  }
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 95, 69, .28);
  }
  .btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(255, 95, 69, .2); }
  .btn-primary:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }
  .btn-sm { height: 44px; padding: 0 20px; font-size: 14px; }
  .btn-white {
    background: #fff;
    color: #0B0E13;
    height: 48px;
    padding: 0 36px;
    font-size: 16px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    position: relative;
    z-index: 2;
    transition: all .25s ease;
  }
  .btn-white:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0, 0, 0, .18); }
  .btn-white:active { transform: translateY(0); }
  .btn-white:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }

  /* ========== 头部导航 ========== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 14, 19, .92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
  .site-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 95, 69, .55), rgba(245, 184, 65, .2), transparent);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
  }
  .logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; flex-shrink: 0; }
  .logo-icon { display: inline-flex; }
  .logo-gradient-text {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .nav-links { display: flex; align-items: center; gap: 28px; }
  .nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: 8px 2px;
    position: relative;
    transition: color .2s ease;
  }
  .nav-link:hover { color: #fff; }
  .nav-link.active { color: #fff; font-weight: 600; }
  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    border-radius: 2px;
    background: var(--gradient-brand);
  }
  .header-tools { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
  .online-status {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: var(--color-text-secondary);
    white-space: nowrap;
  }
  .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-success);
    box-shadow: 0 0 8px var(--color-success);
    animation: pulseDot 2s ease-in-out infinite;
  }
  @keyframes pulseDot { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
  .menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-line);
  }
  .menu-toggle span { display: block; width: 18px; height: 2px; background: var(--color-text); border-radius: 2px; }

  /* 移动端抽屉 */
  .drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .55);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
  }
  .drawer-overlay.show { opacity: 1; pointer-events: auto; }
  .mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(80vw, 320px);
    background: #0D1117;
    z-index: 200;
    padding: 28px 24px;
    transform: translateX(100%);
    transition: transform .3s ease;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--color-line);
  }
  .mobile-drawer.open { transform: translateX(0); box-shadow: -16px 0 40px rgba(0, 0, 0, .45); }
  .drawer-close { align-self: flex-end; width: 40px; height: 40px; color: var(--color-text-secondary); font-size: 24px; line-height: 1; border-radius: 8px; transition: color .2s; }
  .drawer-close:hover { color: var(--color-primary); }
  .mobile-nav { display: flex; flex-direction: column; margin-top: 16px; }
  .mobile-nav a {
    font-size: 17px;
    font-weight: 500;
    color: var(--color-text);
    padding: 14px 0;
    border-bottom: 1px solid var(--color-line);
    transition: color .2s;
  }
  .mobile-nav a:hover, .mobile-nav a.active { color: var(--color-primary); }
  .mobile-drawer .btn { margin-top: 24px; }

  /* ========== 分类页 Banner ========== */
  .cat-banner {
    position: relative;
    height: 320px;
    display: flex;
    align-items: center;
    overflow: hidden;
  }
  .cat-banner-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
  .cat-banner-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11, 14, 19, .94) 0%, rgba(11, 14, 19, .62) 55%, rgba(11, 14, 19, .35) 100%);
  }
  .cat-banner-content { position: relative; z-index: 2; }
  .cat-banner-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 95, 69, .45);
    color: var(--color-secondary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    padding: 4px 16px;
    border-radius: 999px;
  }
  .cat-banner h1 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    line-height: 1.25;
    margin: 18px 0 12px;
    letter-spacing: 1px;
  }
  .cat-banner p { font-size: 16px; color: var(--color-text-secondary); max-width: 560px; }

  /* ========== 锚点导航 ========== */
  .anchor-nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding: 28px 0 8px;
  }
  .anchor-link {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 6px 18px;
    background: var(--color-card);
    border: 1px solid var(--color-line);
    border-radius: 999px;
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: all .2s ease;
  }
  .anchor-link:hover, .anchor-link:focus-visible {
    border-color: var(--color-primary);
    color: #fff;
    outline: none;
    box-shadow: 0 4px 14px rgba(255, 95, 69, .12);
  }

  /* ========== 图文内容组块 ========== */
  .content-block { padding: 52px 0 20px; }
  .content-grid {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 56px;
    align-items: center;
    padding-bottom: 56px;
  }
  .content-grid.reverse .content-media { order: 2; }
  .content-media {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-line);
    background: var(--color-card);
  }
  .content-media::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .03);
    pointer-events: none;
  }
  .content-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
    transition: transform .45s cubic-bezier(.4, 0, .2, 1);
  }
  .content-media:hover img { transform: scale(1.04); }
  .content-text .section-tag { margin-bottom: 12px; }
  .content-text h2 {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 800;
    line-height: 1.35;
    margin-bottom: 18px;
  }
  .content-text p { color: var(--color-text-secondary); font-size: 15px; margin-bottom: 14px; }
  .content-text p strong { color: var(--color-text); font-weight: 600; }

  .section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-secondary);
    letter-spacing: 1px;
    padding: 4px 14px;
    background: rgba(245, 184, 65, .08);
    border: 1px solid rgba(245, 184, 65, .22);
    border-radius: 999px;
  }

  /* 重点摘要卡 */
  .summary-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
  .summary-card {
    background: var(--color-card);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all .25s ease;
  }
  .summary-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 95, 69, .35);
    box-shadow: var(--shadow-hover);
  }
  .summary-card .summary-icon { display: inline-flex; width: 40px; height: 40px; border-radius: 10px; background: rgba(255, 95, 69, .1); align-items: center; justify-content: center; margin-bottom: 12px; }
  .summary-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
  .summary-card p { font-size: 14px; margin: 0; color: var(--color-text-secondary); line-height: 1.7; }

  /* ========== 数据亮点区 ========== */
  .cat-stats {
    background: var(--color-card);
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    padding: 56px 0;
    margin: 32px 0 0;
    position: relative;
  }
  .cat-stats::before {
    content: "";
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 480px;
    height: 160px;
    background: radial-gradient(ellipse, rgba(255, 95, 69, .12), transparent 70%);
    pointer-events: none;
  }
  .stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .stat-item { text-align: center; position: relative; padding: 12px 0; }
  .stat-item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 52px;
    background: var(--color-line);
  }
  .stat-num {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.2;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
  }
  .stat-label { font-size: 13px; color: var(--color-text-secondary); margin-top: 8px; font-weight: 500; }

  /* ========== FAQ 手风琴 ========== */
  .faq-section { padding: 64px 0 40px; }
  .faq-section > .section-title { text-align: center; margin-bottom: 44px; }
  .faq-section > .section-title h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; margin-bottom: 10px; }
  .faq-section > .section-title p { font-size: 15px; color: var(--color-text-secondary); }
  .faq-list { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--color-line); }
  .faq-item { border-bottom: 1px solid var(--color-line); }
  .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    width: 100%;
    padding: 22px 0;
    color: var(--color-text);
    font-size: 17px;
    font-weight: 600;
    text-align: left;
    transition: color .2s ease;
    min-height: 48px;
  }
  .faq-question:hover { color: var(--color-primary); }
  .faq-question .faq-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex-shrink: 0;
    transition: transform .3s ease;
  }
  .faq-icon::before, .faq-icon::after { content: ""; position: absolute; background: var(--color-primary); border-radius: 2px; transition: transform .3s ease; }
  .faq-icon::before { top: 50%; left: 0; right: 0; height: 2px; transform: translateY(-50%); }
  .faq-icon::after { top: 0; bottom: 0; left: 50%; width: 2px; transform: translateX(-50%); }
  .faq-item.open .faq-icon { transform: rotate(45deg); }
  .faq-item.open .faq-question { color: var(--color-primary); }
  .faq-answer {
    display: none;
    padding: 0 0 24px;
    color: var(--color-text-secondary);
    font-size: 15px;
    line-height: 1.8;
  }
  .faq-item.open .faq-answer { display: block; }

  /* ========== CTA 转化区 ========== */
  .cta-section { padding: 64px 0 72px; }
  .cta-box {
    background: var(--gradient-brand);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .cta-box::before {
    content: "";
    position: absolute;
    top: -120px;
    right: -60px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .1);
  }
  .cta-box::after {
    content: "";
    position: absolute;
    bottom: -100px;
    left: -40px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .06);
  }
  .cta-box h2 {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 800;
    color: #0B0E13;
    line-height: 1.3;
    margin-bottom: 12px;
    position: relative;
    z-index: 2;
  }
  .cta-box p {
    font-size: 16px;
    color: rgba(11, 14, 19, .75);
    margin-bottom: 28px;
    position: relative;
    z-index: 2;
  }

  /* ========== 页脚 ========== */
  .site-footer { position: relative; background: #07090C; padding: 56px 0 0; }
  .site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-brand);
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr .8fr .8fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
  }
  .footer-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; margin-bottom: 14px; }
  .footer-brand p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.8; margin-bottom: 18px; max-width: 300px; }
  .social-icons { display: flex; gap: 10px; }
  .social-icon {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--color-card);
    border: 1px solid var(--color-line);
    color: var(--color-text-secondary);
    transition: all .2s ease;
  }
  .social-icon:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); }
  .footer-title { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 16px; }
  .footer-links { display: flex; flex-direction: column; gap: 10px; }
  .footer-links a { font-size: 14px; color: var(--color-text-secondary); transition: color .2s ease; }
  .footer-links a:hover { color: #fff; }
  .footer-contact { display: flex; flex-direction: column; gap: 10px; font-size: 14px; color: var(--color-text-secondary); }
  .qr-placeholder {
    width: 120px;
    height: 120px;
    margin-top: 14px;
    border-radius: var(--radius-sm);
    background: var(--color-card);
    border: 1px solid var(--color-line);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--color-text-secondary);
  }
  .qr-placeholder svg { width: 88px; height: 88px; }
  .footer-bottom {
    border-top: 1px solid var(--color-line);
    padding: 20px 0;
    text-align: center;
    font-size: 12px;
    color: #5C6678;
  }

  /* ========== 响应式断点 ========== */
  @media (max-width: 1024px) {
    .content-grid, .content-grid.reverse { grid-template-columns: 1fr; gap: 32px; }
    .content-grid.reverse .content-media { order: 0; }
    .content-block { padding-top: 40px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  }
  @media (max-width: 768px) {
    .nav-links { display: none; }
    .menu-toggle { display: flex; }
    .header-tools .online-status { display: none; }
    .content-grid { gap: 24px; }
    .content-text h2 { font-size: 24px; }
    .summary-cards { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr; gap: 32px; }
    .stat-item::after { display: none; }
    .cat-banner { height: 280px; }
    .cat-banner h1 { font-size: 32px; }
    .cta-box { padding: 40px 24px; }
    .cta-box h2 { font-size: 26px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .qr-placeholder { margin-left: auto; margin-right: auto; }
    .footer-bottom { padding: 16px 0; }
  }
  @media (max-width: 520px) {
    .container { padding: 0 16px; }
    .cat-banner p { font-size: 14px; }
    .content-text p { font-size: 14px; }
    .faq-question { font-size: 16px; }
    .faq-answer { font-size: 14px; }
    .btn-primary { width: 100%; }
  }

/* roulang page: category2 */
:root {
            --color-bg: #0B0E13;
            --color-card: #131A22;
            --color-card-light: #161D27;
            --color-line: #232B36;
            --color-line-light: #1F2833;
            --color-primary: #FF5F45;
            --color-secondary: #F5B841;
            --color-accent: #00D1A6;
            --color-text: #F2F4F8;
            --color-text-sub: #8A93A3;
            --gradient-brand: linear-gradient(135deg, #FF5F45 0%, #F5B841 100%);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 0 0 rgba(0, 0, 0, 0);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, .45);
            --transition-standard: all .35s cubic-bezier(.4, 0, .2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--color-bg);
            color: var(--color-text);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-hero {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ============ Header & Navigation ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 14, 19, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            border-image: linear-gradient(to right, var(--color-primary), rgba(255, 95, 69, .1)) 1;
            transition: all .3s ease;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
            gap: 32px;
            position: relative;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 95, 69, .08);
            border: 1px solid rgba(255, 95, 69, .25);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .logo-text .text-white {
            color: #fff;
        }

        .logo-text .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-sub);
            border-radius: 6px;
            position: relative;
            white-space: nowrap;
            transition: color .25s ease;
        }

        .nav-link:hover {
            color: var(--color-primary);
        }

        .nav-link.active {
            color: var(--color-text);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -16px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .status-online {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-sub);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 209, 166, .4);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(0, 209, 166, 0);
            }
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            position: relative;
            transition: all .3s ease;
        }

        .btn-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 95, 69, .25);
        }

        .btn-header:active {
            transform: translateY(-1px);
        }

        .btn-badge {
            position: absolute;
            top: -8px;
            right: -8px;
            background: var(--color-secondary);
            color: #161D27;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 12px;
            line-height: 1.5;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            gap: 5px;
            background: transparent;
            border-radius: 8px;
            border: 1px solid var(--color-line);
        }

        .menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all .3s ease;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 14, 19, .98);
            z-index: 99;
            padding: 32px;
            overflow-y: auto;
        }

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

        .mobile-drawer .nav-links {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
        }

        .mobile-drawer .nav-link {
            padding: 16px 8px;
            font-size: 18px;
            font-weight: 600;
            border-bottom: 1px solid var(--color-line-light);
        }

        .mobile-drawer .nav-link.active::after {
            display: none;
        }

        .mobile-drawer .btn-header {
            margin-top: 24px;
            justify-content: center;
            width: 100%;
        }

        /* ============ Category Banner ============ */
        .category-banner {
            position: relative;
            height: 320px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') no-repeat center center;
            background-size: cover;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, rgba(11, 14, 19, .95) 0%, rgba(11, 14, 19, .65) 100%);
        }

        .category-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-brand);
            opacity: .8;
        }

        .category-banner-inner {
            position: relative;
            z-index: 2;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 95, 69, .12);
            border: 1px solid rgba(255, 95, 69, .3);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 24px;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .category-banner h1 {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.3;
            max-width: 700px;
            margin-bottom: 16px;
        }

        .category-banner h1 .gradient-text {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-banner .subtitle {
            font-size: 18px;
            color: var(--color-text-sub);
            max-width: 560px;
            line-height: 1.6;
        }

        /* ============ Anchor Nav ============ */
        .anchor-nav {
            background: var(--color-card);
            border-bottom: 1px solid var(--color-line);
            padding: 16px 0;
            position: sticky;
            top: 72px;
            z-index: 50;
        }

        .anchor-nav-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .anchor-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-sub);
            background: transparent;
            border: 1px solid var(--color-line);
            border-radius: 24px;
            transition: all .3s ease;
            min-height: 44px;
        }

        .anchor-link:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: rgba(255, 95, 69, .08);
        }

        .anchor-link:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        /* ============ Content Sections ============ */
        .content-section {
            padding: 88px 0;
        }

        .content-section-alt {
            background: linear-gradient(to bottom, transparent, rgba(19, 26, 34, .5), transparent);
        }

        .section-head {
            max-width: 760px;
            margin-bottom: 56px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 16px;
        }

        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(24px, 3vw, 42px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-text-sub);
            line-height: 1.8;
        }

        .split-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            margin-bottom: 64px;
        }

        .split-row:last-child {
            margin-bottom: 0;
        }

        .split-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-line);
            box-shadow: 0 8px 32px rgba(0, 0, 0, .3);
            position: relative;
        }

        .split-media img {
            width: 100%;
            height: auto;
            min-height: 320px;
            object-fit: cover;
            transition: transform .6s cubic-bezier(.4, 0, .2, 1);
        }

        .split-media:hover img {
            transform: scale(1.03);
        }

        .split-body {
            padding: 8px 0;
        }

        .split-body h2 {
            font-size: clamp(20px, 2.5vw, 32px);
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 16px;
            color: var(--color-text);
        }

        .split-body p {
            color: var(--color-text-sub);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .feature-list {
            margin-top: 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .feature-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--color-text);
            line-height: 1.7;
        }

        .feature-check {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(0, 209, 166, .15);
            border: 1px solid rgba(0, 209, 166, .3);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .feature-check svg {
            width: 12px;
            height: 12px;
            color: var(--color-accent);
        }

        .highlight-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .highlight-card {
            background: var(--color-card);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all .35s ease;
        }

        .highlight-card:hover {
            border-color: rgba(255, 95, 69, .3);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .highlight-card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 95, 69, .1);
            border: 1px solid rgba(255, 95, 69, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .highlight-card-icon svg {
            width: 22px;
            height: 22px;
            color: var(--color-primary);
        }

        .highlight-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .highlight-card p {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.7;
        }

        /* ============ Stats / Highlights ============ */
        .stats-section {
            padding: 80px 0;
        }

        .stats-container {
            background: var(--color-card);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
        }

        .stats-container::before {
            content: '';
            position: absolute;
            top: -120px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 95, 69, .12) 0%, transparent 70%);
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }

        .stat-item {
            text-align: center;
            padding: 16px;
            position: relative;
        }

        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -16px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 56px;
            background: var(--color-line);
        }

        .stat-number {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 8px;
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        .stat-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-sub);
            line-height: 1.5;
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: 88px 0;
        }

        .faq-container {
            max-width: 860px;
            margin: 0 auto;
            background: rgba(255, 255, 255, .02);
            border: 1px solid var(--color-line-light);
            border-radius: var(--radius-lg);
            padding: 8px 40px;
        }

        .faq-item {
            padding: 24px 0;
            border-bottom: 1px solid var(--color-line-light);
            cursor: pointer;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
            transition: color .3s ease;
            min-height: 44px;
        }

        .faq-item.active .faq-question {
            color: var(--color-primary);
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid var(--color-line);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all .3s ease;
            position: relative;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--color-text-sub);
            border-radius: 2px;
            transition: all .3s ease;
        }

        .faq-icon::before {
            width: 12px;
            height: 2px;
        }

        .faq-icon::after {
            width: 2px;
            height: 12px;
        }

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

        .faq-item.active .faq-icon::before,
        .faq-item.active .faq-icon::after {
            background: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
            padding-left: 0;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--color-text-sub);
            line-height: 1.8;
            padding-right: 48px;
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: 88px 0;
        }

        .cta-box {
            background: var(--gradient-brand);
            border-radius: var(--radius-lg);
            padding: 72px 64px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .9);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .btn-cta-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: #161D27;
            font-size: 16px;
            font-weight: 700;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            transition: all .3s ease;
            min-height: 48px;
        }

        .btn-cta-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
        }

        .btn-cta-light:active {
            transform: translateY(-1px);
        }

        .btn-cta-light:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 3px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: #07090C;
            border-top: 2px solid transparent;
            border-image: linear-gradient(to right, var(--color-primary), rgba(255, 95, 69, .2)) 1;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-brand);
            opacity: .6;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding: 56px 0 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
            font-size: 20px;
            font-weight: 800;
        }

        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .social-icons {
            display: flex;
            gap: 12px;
        }

        .social-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--color-line);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-sub);
            transition: all .3s ease;
        }

        .social-icon:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: rgba(255, 95, 69, .08);
            transform: translateY(-2px);
        }

        .footer-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.6;
            display: inline-block;
            padding: 4px 0;
        }

        .footer-links a:hover {
            color: var(--color-primary);
            transform: translateX(4px);
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-contact-item {
            font-size: 14px;
            color: var(--color-text-sub);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-qr {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            background: var(--color-card);
            border: 1px solid var(--color-line);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 12px;
            color: var(--color-line);
            font-size: 12px;
        }

        .footer-bottom {
            border-top: 1px solid #1A222C;
            padding: 20px 0;
            text-align: center;
            font-size: 12px;
            color: #5C6678;
            letter-spacing: .5px;
        }

        /* ============ Accessibility ============ */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        /* ============ Breadcrumb ============ */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-sub);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-sub);
            transition: color .3s ease;
        }

        .breadcrumb a:hover {
            color: var(--color-primary);
        }

        .breadcrumb .separator {
            color: var(--color-line);
        }

        .breadcrumb .current {
            color: var(--color-primary);
        }

        /* ============ Responsive ============ */
        @media (max-width: 1280px) {
            .header-inner {
                padding: 0 24px;
            }
            .category-banner-inner {
                padding: 0 24px;
            }
            .anchor-nav-inner {
                padding: 0 24px;
            }
            .container {
                padding: 0 24px;
            }
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .header-actions .status-online {
                display: none;
            }
            .header-actions .btn-header {
                display: none;
            }
            .split-row {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .split-media.order-first {
                order: -1;
            }
            .highlight-cards {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-banner-inner {
                padding: 0 24px;
            }
            .anchor-nav-inner {
                justify-content: flex-start;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }
            .anchor-link {
                white-space: nowrap;
                flex-shrink: 0;
            }
            .cta-box {
                padding: 56px 32px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
                padding: 0 16px;
            }
            .container {
                padding: 0 16px;
            }
            .category-banner {
                height: 280px;
            }
            .category-banner-inner {
                padding: 0 16px;
            }
            .category-banner h1 {
                font-size: 28px;
            }
            .category-banner .subtitle {
                font-size: 15px;
            }
            .highlight-cards {
                grid-template-columns: 1fr;
            }
            .stats-container {
                padding: 40px 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stat-item:not(:last-child)::after {
                display: none;
            }
            .stat-item {
                padding: 12px;
            }
            .faq-container {
                padding: 0 16px;
            }
            .faq-question {
                font-size: 15px;
            }
            .faq-answer p {
                padding-right: 0;
            }
            .cta-box {
                padding: 48px 24px;
            }
            .cta-title {
                font-size: 26px;
            }
            .btn-cta-light {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                padding: 40px 0 24px;
            }
            .footer-brand {
                text-align: left;
            }
            .footer-qr {
                margin: 12px auto 0;
            }
            .content-section {
                padding: 56px 0;
            }
            .split-row {
                margin-bottom: 48px;
            }
            .split-media img {
                min-height: 220px;
            }
            .section-title {
                font-size: 24px;
            }
            .anchor-nav {
                top: 64px;
            }
            .anchor-nav-inner {
                padding: 0 16px;
            }
            .mobile-drawer {
                top: 64px;
                padding: 24px 24px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .footer-bottom {
                font-size: 12px;
                padding: 16px;
            }
        }

        @media (max-width: 520px) {
            .stat-number {
                font-size: 36px;
            }
            .highlight-card {
                padding: 20px 16px;
            }
            .features-list-item {
                font-size: 14px;
            }
            .faq-answer p {
                font-size: 14px;
            }
            .anchor-link {
                font-size: 13px;
                padding: 6px 16px;
            }
            .btn-header {
                padding: 8px 18px;
                font-size: 13px;
            }
            .footer-title {
                font-size: 14px;
            }
            .category-banner .subtitle {
                font-size: 14px;
                max-width: 100%;
            }
        }

        /* ============ Scrollbar ============ */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--color-bg);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--color-line);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-text-sub);
        }

/* roulang page: category3 */
:root {
      --color-bg: #0B0E13;
      --color-card: #131A22;
      --color-line: #232B36;
      --color-primary: #FF5F45;
      --color-secondary: #F5B841;
      --color-accent: #00D1A6;
      --color-text: #F2F4F8;
      --color-muted: #8A93A3;
      --gradient-brand: linear-gradient(135deg, #FF5F45 0%, #F5B841 100%);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 12px 32px rgba(0, 0, 0, .45);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--color-bg);
      color: var(--color-text);
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
    }

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

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

    button, input {
      font-family: inherit;
    }

    .gradient-text {
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      color: transparent;
    }

    /* ===== Header / Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 14, 19, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid transparent;
      background-image: linear-gradient(rgba(11,14,19,.92), rgba(11,14,19,.92)), linear-gradient(90deg, rgba(255,95,69,.6), transparent);
      background-origin: border-box;
      background-clip: padding-box, border-box;
      border-bottom: 1px solid rgba(255, 95, 69, 0.25);
    }

    .site-header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      letter-spacing: 0.5px;
      white-space: nowrap;
    }

    .logo-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      background: rgba(255, 95, 69, 0.1);
      border-radius: 10px;
      border: 1px solid rgba(255, 95, 69, 0.25);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--color-muted);
      padding: 8px 0;
      position: relative;
      transition: color .25s ease;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 0;
      height: 2px;
      background: var(--gradient-brand);
      border-radius: 2px;
      transition: width .3s ease;
    }

    .nav-link:hover {
      color: var(--color-primary);
    }

    .nav-link.active {
      color: var(--color-text);
    }

    .nav-link.active::after {
      width: 100%;
    }

    .nav-tools {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .status-online {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 500;
      color: var(--color-accent);
      background: rgba(0, 209, 166, 0.08);
      border: 1px solid rgba(0, 209, 166, 0.25);
      padding: 4px 12px;
      border-radius: 999px;
      white-space: nowrap;
    }

    .status-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-accent);
      position: relative;
    }

    .status-dot::after {
      content: '';
      position: absolute;
      inset: -4px;
      border-radius: 50%;
      border: 2px solid rgba(0, 209, 166, 0.4);
      animation: pulse-ring 1.8s infinite;
    }

    @keyframes pulse-ring {
      0% { transform: scale(.6); opacity: 1; }
      100% { transform: scale(1.6); opacity: 0; }
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--gradient-brand);
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      height: 44px;
      padding: 0 24px;
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease;
      white-space: nowrap;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 95, 69, .25);
    }

    .btn-primary:active {
      transform: translateY(-1px);
    }

    .btn-primary:focus-visible {
      outline: 2px solid var(--color-primary);
      outline-offset: 2px;
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: transparent;
      color: var(--color-text);
      font-weight: 500;
      font-size: 14px;
      height: 44px;
      padding: 0 24px;
      border-radius: var(--radius-sm);
      border: 1px solid #3A465A;
      cursor: pointer;
      transition: border-color .25s ease, color .25s ease;
      white-space: nowrap;
    }

    .btn-ghost:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
    }

    /* Mobile menu */
    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      padding: 8px;
      cursor: pointer;
    }

    .nav-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--color-text);
      border-radius: 2px;
      transition: transform .3s ease, opacity .3s ease;
    }

    .mobile-menu {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(11, 14, 19, .98);
      z-index: 99;
      padding: 32px 24px;
      flex-direction: column;
      gap: 20px;
      overflow-y: auto;
    }

    .mobile-menu.open {
      display: flex;
    }

    .mobile-menu a {
      font-size: 20px;
      font-weight: 600;
      color: var(--color-text);
      padding: 12px 0;
      border-bottom: 1px solid var(--color-line);
    }

    .mobile-menu .btn-primary {
      margin-top: 16px;
      width: 100%;
    }

    /* ===== Banner ===== */
    .category-banner {
      position: relative;
      min-height: 380px;
      display: flex;
      align-items: center;
      background: linear-gradient(90deg, rgba(11,14,19,.82) 0%, rgba(11,14,19,.45) 60%, rgba(11,14,19,.7) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      border-bottom: 2px solid rgba(255, 95, 69, 0.3);
      overflow: hidden;
    }

    .category-banner .container {
      position: relative;
      z-index: 2;
      padding-top: 60px;
      padding-bottom: 60px;
    }

    .banner-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 95, 69, 0.15);
      border: 1px solid rgba(255, 95, 69, 0.4);
      color: var(--color-primary);
      font-size: 13px;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 20px;
      letter-spacing: 1px;
    }

    .banner-tag::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-primary);
    }

    .category-banner h1 {
      font-size: clamp(32px, 4vw, 48px);
      font-weight: 800;
      line-height: 1.3;
      max-width: 640px;
      margin-bottom: 16px;
    }

    .category-banner .banner-sub {
      font-size: 17px;
      color: rgba(242, 244, 248, .75);
      max-width: 520px;
      line-height: 1.8;
    }

    /* ===== Anchor nav ===== */
    .anchor-nav {
      background: var(--color-card);
      border-bottom: 1px solid var(--color-line);
      padding: 14px 0;
      overflow-x: auto;
      white-space: nowrap;
      -webkit-overflow-scrolling: touch;
    }

    .anchor-nav .container {
      display: flex;
      gap: 12px;
      align-items: center;
    }

    .anchor-link {
      display: inline-flex;
      align-items: center;
      height: 36px;
      padding: 0 18px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 500;
      color: var(--color-muted);
      background: #1B222D;
      border: 1px solid var(--color-line);
      transition: color .25s ease, border-color .25s ease, background .25s ease;
    }

    .anchor-link:hover {
      color: var(--color-primary);
      border-color: var(--color-primary);
    }

    .anchor-link i {
      font-style: normal;
      margin-left: 6px;
      font-size: 11px;
    }

    /* ===== Trust stats ===== */
    .trust-stats-section {
      padding: 64px 0 24px;
    }

    .trust-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .stat-center {
      background: var(--color-card);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      text-align: center;
      position: relative;
      overflow: hidden;
      transition: border-color .3s ease, transform .3s ease;
    }

    .stat-center::before {
      content: '';
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background: var(--gradient-brand);
      border-radius: 0 0 6px 6px;
    }

    .stat-center:hover {
      border-color: rgba(255, 95, 69, .4);
      transform: translateY(-4px);
    }

    .stat-number {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.2;
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .stat-label {
      font-size: 14px;
      color: var(--color-muted);
      margin-top: 8px;
    }

    /* ===== Content blocks ===== */
    .content-block {
      padding: 56px 0;
    }

    .content-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .content-grid.reverse .content-media {
      order: 2;
    }

    .content-media {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--color-line);
      box-shadow: 0 24px 48px rgba(0, 0, 0, .4);
    }

    .content-media img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      transition: transform .35s cubic-bezier(.4,0,.2,1);
    }

    .content-media:hover img {
      transform: scale(1.03);
    }

    .content-body h2 {
      font-size: clamp(26px, 2.5vw, 32px);
      font-weight: 800;
      line-height: 1.4;
      margin-bottom: 16px;
      position: relative;
      padding-left: 18px;
    }

    .content-body h2::before {
      content: '';
      position: absolute;
      left: 0;
      top: 8px;
      bottom: 8px;
      width: 4px;
      border-radius: 4px;
      background: var(--gradient-brand);
    }

    .content-body p {
      color: rgba(242, 244, 248, .75);
      font-size: 15px;
      line-height: 1.9;
      margin-bottom: 16px;
    }

    .check-list {
      list-style: none;
      margin: 20px 0 0;
    }

    .check-list li {
      position: relative;
      padding: 8px 0 8px 34px;
      font-size: 15px;
      color: rgba(242, 244, 248, .85);
      border-bottom: 1px solid rgba(35, 43, 54, .5);
    }

    .check-list li:last-child {
      border-bottom: none;
    }

    .check-list li::before {
      content: '✓';
      position: absolute;
      left: 0;
      top: 8px;
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(0, 209, 166, .1);
      border: 1px solid rgba(0, 209, 166, .35);
      border-radius: 50%;
      color: var(--color-accent);
      font-size: 12px;
      font-weight: 700;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--color-primary);
      font-weight: 500;
      font-size: 14px;
      margin-top: 16px;
      transition: gap .25s ease;
    }

    .text-link:hover {
      gap: 10px;
    }

    .text-link i {
      font-style: normal;
      transition: transform .25s ease;
    }

    /* ===== Section heading ===== */
    .section-head {
      margin-bottom: 36px;
    }

    .section-head .kicker {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--color-primary);
      margin-bottom: 8px;
    }

    .section-head h2 {
      font-size: clamp(26px, 2.5vw, 34px);
      font-weight: 800;
      line-height: 1.3;
    }

    .section-head p {
      color: var(--color-muted);
      font-size: 15px;
      margin-top: 12px;
      max-width: 560px;
    }

    /* ===== Feature cards (guard plan) ===== */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--color-card);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
    }

    .feature-card:hover {
      border-color: rgba(255, 95, 69, .3);
      box-shadow: var(--shadow-card);
      transform: translateY(-4px);
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 95, 69, .1);
      border: 1px solid rgba(255, 95, 69, .2);
      margin-bottom: 18px;
    }

    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--color-muted);
      line-height: 1.8;
    }

    /* ===== Compliance ===== */
    .compliance-section {
      padding: 64px 0;
      background: var(--color-card);
      border-top: 1px solid var(--color-line);
      border-bottom: 1px solid var(--color-line);
    }

    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .compliance-item {
      padding: 24px;
      background: var(--color-bg);
      border: 1px solid var(--color-line);
      border-radius: var(--radius-md);
      text-align: center;
      transition: border-color .3s ease;
    }

    .compliance-item:hover {
      border-color: rgba(245, 184, 65, .5);
    }

    .compliance-item .icon {
      width: 44px;
      height: 44px;
      margin: 0 auto 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: rgba(245, 184, 65, .1);
      border: 1px solid rgba(245, 184, 65, .25);
    }

    .compliance-item h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .compliance-item p {
      font-size: 13px;
      color: var(--color-muted);
      line-height: 1.7;
    }

    /* ===== FAQ ===== */
    .faq-section {
      padding: 64px 0;
    }

    .faq-list {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid #1F2833;
      padding: 24px 0;
    }

    .faq-item:last-child {
      border-bottom: none;
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      font-size: 17px;
      font-weight: 600;
      color: var(--color-text);
      background: transparent;
      border: none;
      cursor: pointer;
      width: 100%;
      text-align: left;
      padding: 0;
      transition: color .25s ease;
    }

    .faq-question:hover {
      color: var(--color-primary);
    }

    .faq-item.open .faq-question {
      color: var(--color-primary);
    }

    .faq-icon {
      position: relative;
      width: 20px;
      height: 20px;
      flex-shrink: 0;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: '';
      position: absolute;
      background: var(--color-primary);
      border-radius: 2px;
      transition: transform .3s ease;
    }

    .faq-icon::before {
      width: 16px;
      height: 2px;
      top: 9px;
      left: 2px;
    }

    .faq-icon::after {
      width: 2px;
      height: 16px;
      top: 2px;
      left: 9px;
    }

    .faq-item.open .faq-icon::after {
      transform: rotate(90deg);
      opacity: 0;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease, padding .25s ease;
      padding: 0;
      color: var(--color-muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .faq-item.open .faq-answer {
      max-height: 500px;
      padding-top: 12px;
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 72px 0;
      background: var(--gradient-brand);
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: -60%;
      right: -10%;
      width: 400px;
      height: 400px;
      background: rgba(255, 255, 255, .08);
      border-radius: 50%;
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 680px;
      margin: 0 auto;
    }

    .cta-inner h2 {
      font-size: clamp(28px, 3vw, 38px);
      font-weight: 800;
      color: #0B0E13;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .cta-inner p {
      font-size: 16px;
      color: rgba(11, 14, 19, .7);
      line-height: 1.8;
      margin-bottom: 32px;
    }

    .btn-light {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #0B0E13;
      color: var(--color-text);
      font-weight: 600;
      font-size: 15px;
      height: 50px;
      padding: 0 40px;
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease;
      min-width: 160px;
    }

    .btn-light:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(11, 14, 19, .3);
    }

    .btn-light:active {
      transform: translateY(-1px);
    }

    .btn-light:focus-visible {
      outline: 2px solid #fff;
      outline-offset: 2px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #07090C;
      border-top: 2px solid transparent;
      background-image: linear-gradient(#07090C, #07090C), linear-gradient(90deg, var(--color-primary), var(--color-secondary));
      background-origin: border-box;
      background-clip: padding-box, border-box;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding: 56px 0 40px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--color-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .social-icons {
      display: flex;
      gap: 12px;
    }

    .social-icon {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #131A22;
      border: 1px solid var(--color-line);
      color: var(--color-muted);
      transition: color .25s ease, border-color .25s ease;
    }

    .social-icon:hover {
      color: var(--color-primary);
      border-color: var(--color-primary);
    }

    .footer-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 18px;
      letter-spacing: 1px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-links a {
      font-size: 14px;
      color: var(--color-muted);
      transition: color .25s ease;
    }

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

    .footer-contact p {
      font-size: 14px;
      color: var(--color-muted);
      line-height: 2;
    }

    .footer-qr {
      margin-top: 16px;
    }

    .footer-qr img {
      width: 120px;
      height: 120px;
      border-radius: 8px;
      border: 1px solid var(--color-line);
      object-fit: cover;
    }

    .footer-bottom {
      border-top: 1px solid #1A222C;
      padding: 20px 0;
      text-align: center;
    }

    .footer-bottom p {
      font-size: 12px;
      color: #6B7484;
      letter-spacing: .5px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .nav-links {
        display: none;
      }

      .nav-tools .status-online {
        display: inline-flex;
      }

      .nav-toggle {
        display: flex;
      }

      .trust-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

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

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

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

      .category-banner {
        min-height: 320px;
      }
    }

    @media (max-width: 768px) {
      .container {
        padding: 0 20px;
      }

      .content-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .content-grid.reverse .content-media {
        order: 0;
      }

      .content-media img {
        height: 220px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 40px 0 24px;
      }

      .footer-qr img {
        margin: 0 auto;
      }

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

      .btn-light {
        width: 100%;
      }

      .anchor-nav .container {
        padding: 0 16px;
      }
    }

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

      .site-header .container {
        height: 64px;
        padding: 0 16px;
      }

      .logo {
        font-size: 18px;
      }

      .logo-icon {
        width: 32px;
        height: 32px;
      }

      .status-online span {
        display: none;
      }

      .status-online {
        padding: 4px 8px;
      }

      .btn-primary {
        padding: 0 16px;
        height: 40px;
        font-size: 13px;
      }

      .trust-stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
      }

      .stat-number {
        font-size: 32px;
      }

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

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

      .category-banner .container {
        padding-top: 40px;
        padding-bottom: 40px;
      }

      .category-banner h1 {
        font-size: 30px;
      }

      .mobile-menu {
        top: 64px;
      }
    }