/* roulang page: index */
:root {
    --bg: #0d0f14;
    --bg-soft: #111318;
    --panel: #171a21;
    --panel-2: #20242e;
    --line: rgba(255, 255, 255, .08);
    --line-strong: rgba(255, 255, 255, .14);
    --text: #f2f4f8;
    --muted: #9aa3b2;
    --fire: #ff2d3f;
    --orange: #ff6b3d;
    --red-soft: #ff8a3d;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-pill: 999px;
    --shadow-card: 0 12px 40px rgba(255, 45, 63, .08);
    --shadow-deep: 0 8px 30px rgba(0, 0, 0, .35);
    --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    background-image: linear-gradient(180deg, #0d0f14 0%, #0f1117 50%, #0d0f14 100%);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  body * {
    box-sizing: border-box;
  }

  h1, h2, h3, h4 {
    line-height: 1.25;
  }

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

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

  button {
    font-family: inherit;
    cursor: pointer;
    border: 0;
    background: none;
  }

  ul, ol {
    list-style: none;
  }

  :focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 3px;
    border-radius: 6px;
  }

  .container {
    width: 100%;
    max-width: 1220px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .text-fire {
    background: linear-gradient(120deg, var(--fire), var(--orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .1em;
    color: var(--fire);
    text-transform: uppercase;
    margin-bottom: 16px;
  }

  .eyebrow::before {
    content: "";
    width: 18px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--fire), var(--red-soft));
    box-shadow: 0 0 12px rgba(255, 45, 63, .55);
  }

  .section-title {
    font-size: clamp(26px, 4.2vw, 42px);
    font-weight: 900;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
  }

  .section-lead {
    font-size: 17px;
    color: var(--muted);
    max-width: 720px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 16px;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
    cursor: pointer;
  }

  .btn-primary {
    background: linear-gradient(135deg, #ff2d3f, #ff6b3d);
    color: #fff;
    box-shadow: 0 0 18px rgba(255, 45, 63, .35);
  }

  .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 26px rgba(255, 45, 63, .55);
  }

  .btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 0 10px rgba(255, 45, 63, .25);
  }

  .btn-ghost {
    border: 1px solid rgba(255, 255, 255, .2);
    color: #fff;
    background: rgba(255, 255, 255, .03);
  }

  .btn-ghost:hover {
    border-color: var(--fire);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 0 14px rgba(255, 45, 63, .2);
  }

  .sec-pad {
    padding-top: 96px;
    padding-bottom: 96px;
  }

  .sec-alt {
    background: linear-gradient(180deg, #0f1117 0%, #11141b 100%);
  }

  .card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease;
  }

  .card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 99, 60, .55);
    box-shadow: var(--shadow-card);
  }

  /* 顶部导航 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(20, 23, 30, .92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }

  .site-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: linear-gradient(90deg, #ff2d3f, #ff6b3d 50%, transparent 100%);
    pointer-events: none;
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
    font-size: 25px;
    letter-spacing: .02em;
    line-height: 1;
    white-space: nowrap;
  }

  .brand-mark {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #ff8a3d, #ff2d3f 70%);
    box-shadow: 0 0 16px rgba(255, 45, 63, .8);
  }

  .brand b {
    color: #fff;
    font-weight: 900;
  }

  .brand em {
    font-style: normal;
    background: linear-gradient(120deg, #ff2d3f, #ff8a3d);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 34px;
  }

  .nav-link {
    position: relative;
    font-weight: 600;
    font-size: 16px;
    color: rgba(255, 255, 255, .68);
    padding: 10px 2px;
    transition: color .2s ease, text-shadow .2s ease;
    white-space: nowrap;
  }

  .nav-link:hover {
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 110, 60, .35);
  }

  .nav-link.active {
    color: #fff;
  }

  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, #ff2d3f, #ff8a3d);
    box-shadow: 0 0 14px rgba(255, 45, 63, .7);
  }

  .nav-cta {
    padding: 10px 22px;
    font-size: 15px;
    white-space: nowrap;
  }

  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .04);
    position: relative;
  }

  .nav-toggle span,
  .nav-toggle span::before,
  .nav-toggle span::after {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    height: 2px;
    border-radius: 999px;
    background: #fff;
    transition: transform .2s ease, opacity .2s ease;
  }

  .nav-toggle span {
    top: 50%;
    transform: translateY(-50%);
  }

  .nav-toggle span::before {
    top: -7px;
  }

  .nav-toggle span::after {
    top: 7px;
  }

  .nav-toggle.is-active span {
    background: transparent;
  }

  .nav-toggle.is-active span::before {
    transform: rotate(45deg);
    left: 8px;
    right: 8px;
    top: 0;
  }

  .nav-toggle.is-active span::after {
    transform: rotate(-45deg);
    left: 8px;
    right: 8px;
    top: 0;
  }

  @media (max-width: 767px) {
    .header-inner {
      height: 66px;
    }

    .nav-toggle {
      display: block;
    }

    .nav-menu {
      display: none;
      position: absolute;
      top: calc(100% + 1px);
      left: 0;
      right: 0;
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      padding: 12px 24px 24px;
      background: rgba(16, 19, 26, .98);
      backdrop-filter: blur(16px);
      border-bottom: 2px solid transparent;
      border-image: linear-gradient(90deg, #ff2d3f, #ff8a3d) 1;
      box-shadow: 0 22px 36px rgba(0, 0, 0, .45);
    }

    .nav-menu.is-open {
      display: flex;
    }

    .nav-link,
    .nav-cta {
      width: 100%;
      padding: 14px 4px;
      border-bottom: 1px solid rgba(255, 255, 255, .06);
      border-radius: 0;
      justify-content: flex-start;
    }

    .nav-link.active::after {
      left: -8px;
      right: auto;
      width: 4px;
      height: 22px;
      top: 50%;
      transform: translateY(-50%);
      bottom: auto;
    }

    .nav-menu .nav-cta {
      margin-top: 12px;
      border-bottom: 0;
      justify-content: center;
    }
  }

  /* Hero */
  .hero {
    position: relative;
    padding: 112px 0 170px;
    background-image:
      linear-gradient(90deg, rgba(13, 15, 20, .96) 0%, rgba(13, 15, 20, .82) 50%, rgba(13, 15, 20, .55) 100%),
      url("/assets/images/backpic/back-2.jpg");
    background-size: cover;
    background-position: center;
    overflow: hidden;
  }

  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 84% 20%, rgba(255, 45, 63, .14), transparent 40%);
    pointer-events: none;
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 64px;
    align-items: center;
  }

  .hero-title {
    font-size: clamp(30px, 5vw, 48px);
    font-weight: 900;
    letter-spacing: -1px;
    line-height: 1.24;
    margin-bottom: 22px;
  }

  .hero-sub {
    font-size: 17px;
    line-height: 1.9;
    color: #b9c1cd;
    margin-bottom: 26px;
    max-width: 580px;
  }

  .hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 22px;
    margin-bottom: 32px;
  }

  .hero-points li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #c6ccd6;
    font-size: 15px;
  }

  .hero-points li::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--orange);
    box-shadow: 0 0 8px rgba(255, 45, 63, .65);
  }

  .hero-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }

  .hero-media {
    position: relative;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    min-height: 420px;
  }

  .hero-media-figure {
    position: relative;
    width: min(100%, 410px);
    aspect-ratio: 5 / 7;
    border-radius: 44px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .18);
    box-shadow: 0 28px 90px rgba(255, 45, 63, .22);
    transform: rotate(2.4deg) translateY(16px);
  }

  .hero-media-figure::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(13, 15, 20, .45));
  }

  .hero-media-figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .hero-float-card {
    position: absolute;
    left: 2%;
    bottom: 2%;
    background: rgba(20, 24, 32, .92);
    backdrop-filter: blur(10px);
    border: 1px solid var(--line-strong);
    border-radius: 20px;
    padding: 16px 20px;
    max-width: 220px;
    z-index: 3;
    box-shadow: var(--shadow-deep);
  }

  .hero-float-card strong {
    display: block;
    font-size: 16px;
    color: #fff;
    margin-bottom: 2px;
  }

  .hero-float-card span {
    font-size: 13px;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .hero-float-card span::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--orange);
    box-shadow: 0 0 8px rgba(255, 107, 61, .9);
  }

  /* 数据徽章横条 */
  .stat-strip {
    position: relative;
    z-index: 10;
    margin-top: -82px;
  }

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

  .stat-card {
    padding: 28px 18px 24px;
    text-align: center;
    background: #1b1f28;
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, .35);
  }

  .stat-num {
    font-family: var(--font-mono);
    font-size: 38px;
    font-weight: 900;
    line-height: 1.2;
    background: linear-gradient(120deg, #ff2d3f, #ff8a3d);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
    margin-bottom: 5px;
  }

  .stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, .58);
  }

  /* 解决方案 */
  .solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 34px;
  }

  .solution-card {
    padding: 32px;
    position: relative;
    overflow: hidden;
  }

  .solution-card .card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
  }

  .solution-icon {
    width: 54px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255, 45, 63, .16), rgba(255, 107, 61, .1));
    color: #ff6b3d;
    border-radius: 18px;
    border: 1px solid rgba(255, 107, 61, .2);
  }

  .solution-num {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 700;
    color: rgba(255, 255, 255, .35);
    letter-spacing: .08em;
  }

  .solution-link {
    color: #ff6b3d;
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap .2s ease, color .2s ease;
  }

  .solution-link:hover {
    color: #ff2d3f;
    gap: 10px;
  }

  .check-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 6px;
  }

  .check-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: rgba(255, 255, 255, .035);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 14px 16px;
    color: #cbd2de;
    font-size: 14px;
  }

  .check-item::before {
    content: "✓";
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, #ff2d3f, #ff6b3d);
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
  }

  /* 成果区 */
  .overview-grid {
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 24px;
    align-items: stretch;
  }

  .data-panel {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 22px;
  }

  .data-mini {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
  }

  .data-mini strong {
    font-family: var(--font-mono);
    font-size: 26px;
    color: #fff;
  }

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

  .progress-row .progress-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    margin-bottom: 9px;
  }

  .progress-head span {
    color: var(--muted);
  }

  .progress-head strong {
    color: #fff;
    font-family: var(--font-mono);
  }

  .progress-track {
    height: 9px;
    background: rgba(255, 255, 255, .07);
    border-radius: 999px;
    overflow: hidden;
  }

  .progress-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, #ff2d3f, #ff8a3d);
    box-shadow: 0 0 12px rgba(255, 45, 63, .4);
  }

  .note-badge {
    border-radius: 14px;
    border: 1px dashed rgba(255, 255, 255, .16);
    background: rgba(255, 255, 255, .03);
    padding: 12px 16px;
    color: #aeb6c2;
    font-size: 14px;
  }

  .post-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .post-row {
    display: flex;
    align-items: center;
    gap: 18px;
    background: #181b22;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 14px;
    transition: transform .25s ease, border-color .25s ease, background .25s ease, box-shadow .25s ease;
  }

  .post-row:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 87, 51, .55);
    background: #1d212b;
    box-shadow: var(--shadow-card);
  }

  .post-thumb {
    flex: 0 0 auto;
    width: 168px;
    height: 104px;
    border-radius: 14px;
    overflow: hidden;
    background: #232833;
  }

  .post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
  }

  .post-row:hover .post-thumb img {
    transform: scale(1.04);
  }

  .post-body {
    min-width: 0;
    flex: 1;
  }

  .post-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: #ff7a4d;
    border: 1px solid rgba(255, 107, 61, .3);
    background: rgba(255, 107, 61, .09);
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 7px;
  }

  .post-body h3 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    line-height: 1.45;
    margin-bottom: 6px;
  }

  .post-body p {
    font-size: 14px;
    color: #99a2b1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .post-meta {
    display: flex;
    gap: 10px;
    align-items: center;
    font-size: 12px;
    color: rgba(255, 255, 255, .45);
    margin-top: 7px;
  }

  /* 证言 */
  .testi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .testi-card {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .testi-star {
    display: flex;
    gap: 4px;
    color: #ff7a3d;
    letter-spacing: 2px;
    font-size: 15px;
  }

  .testi-card blockquote {
    font-size: 15px;
    color: #d4dae3;
    line-height: 1.8;
    flex: 1;
  }

  .testi-user {
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid var(--line);
    padding-top: 16px;
  }

  .testi-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(145deg, #ff2d3f, #ff6b3d);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
  }

  .testi-user strong {
    display: block;
    font-size: 15px;
    color: #fff;
  }

  .testi-user span {
    font-size: 12px;
    color: rgba(255, 255, 255, .45);
  }

  .fake-note {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 107, 61, .08);
    border: 1px solid rgba(255, 107, 61, .22);
    color: #ff8a5c;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 26px;
  }

  /* FAQ */
  .faq-wrap {
    max-width: 920px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .faq-item {
    background: #181b23;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 0 24px;
    transition: border-color .2s ease, box-shadow .2s ease;
  }

  .faq-item:hover {
    border-color: rgba(255, 107, 61, .35);
  }

  .faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    padding: 21px 0;
    user-select: none;
    position: relative;
  }

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

  .faq-item summary::after {
    content: "↓";
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
    color: #ff6b3d;
    border-radius: 50%;
    border: 1px solid rgba(255, 107, 61, .3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: background .2s ease, color .2s ease;
  }

  .faq-item[open] summary::after {
    background: #ff2d3f;
    color: #fff;
    border-color: #ff2d3f;
  }

  .faq-answer {
    color: #a5aeba;
    font-size: 15px;
    padding-bottom: 24px;
    margin-top: -4px;
    line-height: 1.8;
  }

  /* CTA */
  .cta-band {
    padding: 110px 0;
    background-image:
      linear-gradient(100deg, rgba(13, 15, 20, .92) 0%, rgba(13, 15, 20, .72) 60%, rgba(13, 15, 20, .5) 100%),
      url("/assets/images/backpic/back-5.jpg");
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
  }

  .cta-band::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 120%, rgba(255, 45, 63, .22), transparent 55%);
  }

  .cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 760px;
    margin: 0 auto;
  }

  /* Footer */
  .site-footer {
    background: #0a0b0f;
    border-top: 1px solid var(--line);
    position: relative;
  }

  .site-footer::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #ff2d3f, #ff8a3d, transparent);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 44px;
    padding-top: 64px;
    padding-bottom: 44px;
  }

  .footer-desc {
    color: #7f8998;
    font-size: 14px;
    margin-top: 16px;
    max-width: 300px;
  }

  .footer-title {
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 20px;
  }

  .footer-links li + li {
    margin-top: 11px;
  }

  .footer-links a {
    color: #8e97a6;
    font-size: 14px;
    transition: color .2s ease;
  }

  .footer-links a:hover {
    color: #ff6b3d;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .06);
    padding: 22px 0;
    color: #6b7483;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
  }

  /* 响应式 */
  @media (max-width: 1100px) {
    .hero-inner {
      grid-template-columns: 1fr;
      gap: 80px;
    }

    .hero-media {
      justify-content: center;
    }

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

    .check-list {
      grid-template-columns: 1fr;
    }

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

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

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

  @media (max-width: 767px) {
    .sec-pad {
      padding-top: 72px;
      padding-bottom: 72px;
    }

    .hero {
      padding-top: 76px;
      padding-bottom: 150px;
    }

    .hero-title {
      font-size: 34px;
    }

    .hero-btns .btn {
      width: 100%;
    }

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

    .hero-media-figure {
      margin-left: auto;
      margin-right: auto;
      max-width: 330px;
    }

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

    .stat-card {
      padding: 20px 12px;
    }

    .stat-num {
      font-size: 28px;
    }

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

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

    .footer-bottom {
      justify-content: center;
      text-align: center;
    }
  }

  @media (max-width: 520px) {
    .post-row {
      flex-direction: column;
      align-items: flex-start;
    }

    .post-thumb {
      width: 100%;
      height: auto;
      aspect-ratio: 16 / 8;
    }

    .hero-float-card {
      left: 50%;
      transform: translateX(-50%);
      bottom: -18px;
      width: max-content;
    }

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

    .check-item {
      font-size: 13px;
    }
  }

/* roulang page: category1 */
/* ========== 51黑料 设计变量 ========== */
        :root {
            --bg: #0d0f14;
            --bg-soft: #111318;
            --panel: #171a21;
            --panel-2: #20242e;
            --line: rgba(255, 255, 255, .08);
            --line-strong: rgba(255, 255, 255, .14);
            --text: #f2f4f8;
            --muted: #9aa3b2;
            --fire: #ff2d3f;
            --orange: #ff6b3d;
            --red-soft: #ff8a3d;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-pill: 999px;
            --shadow-card: 0 12px 40px rgba(255, 45, 63, .08);
            --shadow-deep: 0 8px 30px rgba(0, 0, 0, .35);
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background-color: var(--bg);
            background-image: linear-gradient(180deg, #0d0f14 0%, #111318 45%, #0d0f14 100%);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: 0;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1220px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        ::selection {
            background: rgba(255, 45, 63, .32);
            color: #fff;
        }

        :focus-visible {
            outline: 2px solid rgba(255, 255, 255, .9);
            outline-offset: 4px;
            border-radius: 8px;
        }

        .fire-text {
            background: linear-gradient(120deg, var(--fire), var(--red-soft));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: .08em;
            color: var(--fire);
            margin-bottom: 14px;
        }

        .eyebrow::before {
            content: "";
            width: 18px;
            height: 3px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--fire), var(--red-soft));
            box-shadow: 0 0 12px rgba(255, 45, 63, .55);
        }

        .section-title {
            font-size: clamp(26px, 4.2vw, 42px);
            font-weight: 900;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .section-lead {
            font-size: 17px;
            color: var(--muted);
            max-width: 720px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 16px;
            line-height: 1;
            white-space: nowrap;
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
        }

        .btn-primary {
            background: linear-gradient(135deg, #ff2d3f, #ff6b3d);
            color: #fff;
            box-shadow: 0 0 18px rgba(255, 45, 63, .35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 26px rgba(255, 45, 63, .55);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 0 10px rgba(255, 45, 63, .25);
        }

        .btn-ghost {
            border: 1px solid rgba(255, 255, 255, .25);
            color: #fff;
            background: rgba(255, 255, 255, .03);
        }

        .btn-ghost:hover {
            border-color: var(--fire);
            transform: translateY(-3px);
            box-shadow: 0 0 16px rgba(255, 45, 63, .22);
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(20, 23, 30, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
        }

        .site-header::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -1px;
            height: 2px;
            background: linear-gradient(90deg, #ff2d3f, #ff6b3d 50%, transparent 100%);
            pointer-events: none;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 900;
            font-size: 25px;
            letter-spacing: .02em;
            line-height: 1;
            white-space: nowrap;
        }

        .brand-mark {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ff8a3d, #ff2d3f 70%);
            box-shadow: 0 0 16px rgba(255, 45, 63, .8);
        }

        .brand b {
            color: #fff;
            font-weight: 900;
        }

        .brand em {
            font-style: normal;
            background: linear-gradient(120deg, #ff2d3f, #ff8a3d);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 34px;
        }

        .nav-link {
            position: relative;
            font-weight: 600;
            font-size: 16px;
            color: rgba(255, 255, 255, .68);
            padding: 10px 2px;
            transition: color .2s ease, text-shadow .2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            text-shadow: 0 0 10px rgba(255, 110, 60, .35);
        }

        .nav-link.active {
            color: #fff;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -4px;
            height: 3px;
            border-radius: 999px;
            background: linear-gradient(90deg, #ff2d3f, #ff8a3d);
            box-shadow: 0 0 14px rgba(255, 45, 63, .7);
        }

        .nav-cta {
            padding: 10px 22px;
            font-size: 15px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 14px;
            border: 1px solid var(--line);
            background: rgba(255, 255, 255, .04);
            position: relative;
        }

        .nav-toggle span,
        .nav-toggle span::before,
        .nav-toggle span::after {
            content: "";
            position: absolute;
            left: 10px;
            right: 10px;
            height: 2px;
            border-radius: 999px;
            background: #fff;
            transition: transform .2s ease, opacity .2s ease;
        }

        .nav-toggle span {
            top: 50%;
            transform: translateY(-50%);
        }

        .nav-toggle span::before {
            top: -7px;
        }

        .nav-toggle span::after {
            top: 7px;
        }

        .nav-toggle.is-active span {
            background: transparent;
        }

        .nav-toggle.is-active span::before {
            top: 0;
            transform: rotate(45deg);
        }

        .nav-toggle.is-active span::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* ========== 分类页矮横幅 ========== */
        .cat-hero {
            position: relative;
            border-bottom: 1px solid var(--line);
            background-image: linear-gradient(rgba(13, 15, 20, .86), rgba(13, 15, 20, .94)), url("/assets/images/backpic/back-2.jpg");
            background-size: cover;
            background-position: center;
            padding-top: 58px;
            padding-bottom: 54px;
        }

        .crumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 18px;
        }

        .crumb a:hover {
            color: var(--red-soft);
        }

        .crumb .sep {
            color: rgba(255, 255, 255, .35);
            margin: 0 3px;
        }

        .crumb .now {
            color: rgba(255, 255, 255, .86);
            font-weight: 600;
        }

        .cat-title {
            font-size: clamp(30px, 5vw, 48px);
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.2;
            margin: 0 0 12px;
        }

        .cat-desc {
            color: #c6ccd6;
            max-width: 680px;
            font-size: 16px;
            line-height: 1.9;
        }

        .hero-stat-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 28px;
        }

        .hero-stat {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            backdrop-filter: blur(6px);
            border-radius: var(--radius-md);
            padding: 12px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .hero-stat strong {
            font-family: var(--font-mono);
            font-size: 22px;
            line-height: 1.2;
            font-weight: 800;
            background: linear-gradient(120deg, #ff2d3f, #ff8a3d);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            white-space: nowrap;
        }

        .hero-stat span {
            color: rgba(255, 255, 255, .75);
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            display: block;
        }

        /* ========== 筛选工具栏 ========== */
        .filter-bar {
            border-bottom: 1px solid var(--line);
            background: rgba(17, 19, 24, .35);
        }

        .filter-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            padding-top: 20px;
            padding-bottom: 20px;
        }

        .filter-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--muted);
            margin-right: 6px;
        }

        .filter-label i {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: linear-gradient(135deg, #ff2d3f, #ff8a3d);
            box-shadow: 0 0 10px rgba(255, 45, 63, .7);
            display: inline-block;
        }

        .filter-pill {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 999px;
            background: var(--panel);
            border: 1px solid var(--line);
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            font-weight: 600;
            line-height: 1.2;
            transition: all .2s ease;
            cursor: default;
            white-space: nowrap;
        }

        .filter-pill:hover {
            color: #fff;
            border-color: rgba(255, 90, 60, .55);
            box-shadow: 0 0 12px rgba(255, 45, 63, .18);
        }

        .filter-pill.is-active {
            background: linear-gradient(135deg, rgba(255, 45, 63, .18), rgba(255, 138, 61, .14));
            border-color: rgba(255, 88, 58, .65);
            color: #fff;
            box-shadow: 0 0 12px rgba(255, 45, 63, .16);
        }

        /* ========== 内容网格通用 ========== */
        .section-space {
            padding-top: 90px;
            padding-bottom: 90px;
        }

        .topic-head {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 38px;
        }

        .topic-head .heading-side {
            flex: 1 1 320px;
        }

        .topic-note {
            color: var(--muted);
            font-size: 15px;
        }

        /* ========== 重点卡片（大卡） ========== */
        .feature-card {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 44px;
            transition: border-color .25s ease, box-shadow .25s ease;
            box-shadow: 0 0 0 transparent;
        }

        .feature-card:hover {
            border-color: rgba(255, 90, 60, .5);
            box-shadow: var(--shadow-card);
        }

        .feature-media {
            position: relative;
            min-height: 290px;
            overflow: hidden;
        }

        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .feature-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 40%, rgba(23, 26, 33, .55));
            pointer-events: none;
        }

        .feature-body {
            padding: 38px 40px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
        }

        .feature-body .tag-chip {
            position: static;
            transform: none;
            margin-bottom: 18px;
        }

        .feature-body h3 {
            font-size: clamp(20px, 2.4vw, 28px);
            font-weight: 900;
            line-height: 1.45;
            letter-spacing: -.2px;
            margin: 0 0 14px;
        }

        .feature-body h3 a:hover {
            color: #ff5a4d;
        }

        .feature-summary {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .feature-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin: 8px 0 20px;
        }

        .feature-stat {
            display: flex;
            flex-direction: column;
        }

        .feature-stat b {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 800;
            background: linear-gradient(120deg, #ff2d3f, #ff8a3d);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .feature-stat small {
            color: var(--muted);
            font-size: 12px;
        }

        .feature-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .text-link-fire {
            font-weight: 700;
            font-size: 15px;
            color: #ff8a71;
            transition: color .2s ease;
        }

        .text-link-fire:hover {
            color: #fff;
        }

        /* 内容角标 */
        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 15px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .02em;
            background: rgba(10, 11, 15, .68);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, .18);
            color: #fff;
            line-height: 1.3;
            white-space: nowrap;
            width: fit-content;
        }

        /* ========== 纵向信息卡片 ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 24px;
        }

        .news-card {
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 95, 60, .55);
            box-shadow: var(--shadow-card);
        }

        .news-thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #111318;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }

        .news-thumb .tag-chip {
            position: absolute;
            left: 16px;
            bottom: 14px;
            z-index: 3;
        }

        .news-thumb::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(10, 11, 15, .55));
            pointer-events: none;
            z-index: 1;
        }

        .news-content {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-content h3 {
            margin: 0 0 10px;
        }

        .news-content h3 a {
            font-size: 18px;
            font-weight: 800;
            line-height: 1.5;
            display: block;
            transition: color .2s ease;
        }

        .news-content h3 a:hover {
            color: #ff6f57;
        }

        .news-excerpt {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            margin-top: auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding-top: 14px;
            font-size: 13px;
            color: var(--muted);
        }

        .news-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .3);
            display: inline-block;
        }

        .heat-up {
            color: #ff7c5e;
            font-weight: 700;
            font-size: 13px;
        }

        .news-more {
            font-weight: 700;
            color: #ff7a62;
            font-size: 14px;
        }

        .news-more:hover {
            color: #fff;
        }

        /* ========== 分页 ========== */
        .pagination {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 48px;
        }

        .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 12px;
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: 14px;
            color: rgba(255, 255, 255, .68);
            font-weight: 700;
            font-size: 15px;
            transition: all .2s ease;
        }

        .page-link:hover {
            color: #fff;
            border-color: rgba(255, 80, 60, .55);
            transform: translateY(-2px);
            box-shadow: 0 0 14px rgba(255, 45, 63, .12);
        }

        .page-link.active {
            background: linear-gradient(135deg, #ff2d3f, #ff6b3d);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 0 16px rgba(255, 45, 63, .35);
        }

        .page-link.disabled {
            opacity: .45;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* ========== 横向推荐列表 ========== */
        .pick-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 22px;
        }

        .pick-card {
            display: flex;
            align-items: stretch;
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
            height: 100%;
        }

        .pick-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 90, 60, .5);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
        }

        .pick-media {
            flex: 0 0 184px;
            min-height: 132px;
            position: relative;
            overflow: hidden;
            background: #101218;
        }

        .pick-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .pick-body {
            padding: 16px 18px 14px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-width: 0;
        }

        .pick-body h3 {
            margin: 0;
        }

        .pick-body h3 a {
            font-size: 16px;
            font-weight: 800;
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .pick-body h3 a:hover {
            color: #ff6f57;
        }

        .pick-meta {
            margin-top: auto;
            font-size: 13px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 880px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

        details.faq-block {
            background: var(--panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 6px 6px;
            transition: border-color .2s ease;
        }

        details.faq-block:hover {
            border-color: rgba(255, 90, 60, .45);
        }

        details.faq-block summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 17px 22px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 800;
            line-height: 1.6;
            border-radius: var(--radius-md);
            color: #fff;
        }

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

        .faq-arrow {
            flex: 0 0 auto;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--line-strong);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: transform .2s ease, border-color .2s ease;
            color: #ff8a71;
        }

        details[open] .faq-arrow {
            transform: rotate(180deg);
        }

        details.faq-block .faq-answer {
            padding: 0 24px 22px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            max-width: 760px;
        }

        /* ========== CTA区 ========== */
        .cta-banner {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background-image: linear-gradient(115deg, rgba(13, 15, 20, .94), rgba(30, 15, 18, .72)), url("/assets/images/backpic/back-6.jpg");
            background-size: cover;
            background-position: center;
            border: 1px solid rgba(255, 75, 60, .22);
            padding: 64px 48px;
            text-align: center;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 45, 63, .18), transparent 65%);
            top: -160px;
            left: -90px;
            pointer-events: none;
        }

        .cta-banner::after {
            content: "";
            position: absolute;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 138, 61, .15), transparent 66%);
            right: -80px;
            bottom: -120px;
            pointer-events: none;
        }

        .cta-banner .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .cta-inner h2 {
            font-size: clamp(26px, 4vw, 40px);
            font-weight: 900;
            margin: 4px 0 12px;
            letter-spacing: -.4px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, .78);
            font-size: 16px;
            max-width: 640px;
            margin: 0 0 30px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0a0b0f;
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, #ff2d3f, #ff8a3d) 1;
            margin-top: 0;
        }

        .site-footer .container {
            padding-top: 58px;
            padding-bottom: 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-desc {
            color: var(--muted);
            margin: 16px 0 0;
            font-size: 15px;
            max-width: 360px;
            line-height: 1.8;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 800;
            color: #fff;
            margin: 6px 0 18px;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, .66);
            font-size: 15px;
            transition: color .2s ease;
        }

        .footer-links a:hover {
            color: #ff8a71;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 26px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            color: rgba(255, 255, 255, .45);
            font-size: 14px;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .feature-card {
                grid-template-columns: 1fr;
            }

            .feature-media {
                min-height: 260px;
            }

            .feature-media::after {
                background: linear-gradient(0deg, rgba(23, 26, 33, .5), transparent);
            }

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

            .pick-media {
                flex-basis: 160px;
            }
        }

        @media (max-width: 820px) {
            .nav-toggle {
                display: block;
            }

            .nav-menu {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: rgba(15, 17, 22, .98);
                border-bottom: 1px solid var(--line);
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 12px 24px 20px;
                transform: translateY(-20px);
                opacity: 0;
                visibility: hidden;
                transition: opacity .2s ease, transform .2s ease, visibility .2s;
                box-shadow: 0 30px 60px rgba(0, 0, 0, .5);
                backdrop-filter: blur(18px);
                max-height: calc(100vh - 76px);
                overflow-y: auto;
            }

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

            .nav-menu .nav-link,
            .nav-menu .nav-cta {
                padding: 14px 8px;
                margin: 3px 0;
            }

            .nav-menu .nav-cta {
                margin-top: 14px;
            }

            .nav-menu .nav-link.active::after {
                bottom: 3px;
                left: 8px;
                width: 48px;
            }

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

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

            .cta-banner {
                padding: 50px 28px;
            }
        }

        @media (max-width: 620px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-inner {
                height: 66px;
            }

            .brand {
                font-size: 22px;
            }

            .hero-stat-group {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .hero-stat {
                padding: 12px 14px;
            }

            .cat-hero {
                padding-top: 40px;
                padding-bottom: 40px;
            }

            .crumb {
                font-size: 13px;
            }

            .section-space {
                padding-top: 64px;
                padding-bottom: 64px;
            }

            .feature-body {
                padding: 24px 20px;
            }

            .feature-stats {
                gap: 20px;
            }

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

            .feature-actions .btn {
                display: flex;
            }

            .news-content {
                padding: 16px 16px 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .pick-card {
                flex-direction: column;
            }

            .pick-media {
                flex: none;
                width: 100%;
                aspect-ratio: 16 / 9;
                min-height: auto;
            }

            .cta-inner p {
                font-size: 15px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 380px) {
            .nav-cta {
                font-size: 14px;
                padding: 9px 15px;
            }

            .hero-stat {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }

            .hero-stat strong {
                font-size: 20px;
            }
        }