/* roulang page: index */
:root {
    --brand: #f4a04a;
    --brand-hover: #fbb069;
    --brand-deep: #e0842d;
    --bg: #0c0a08;
    --bg-soft: #15110d;
    --card: rgba(255, 255, 255, 0.045);
    --card-hover: rgba(255, 255, 255, 0.085);
    --text: #fff6ec;
    --muted: rgba(255, 246, 236, 0.68);
    --faint: rgba(255, 246, 236, 0.42);
    --border: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.16);
    --radius: 18px;
    --shadow: 0 22px 50px rgba(0, 0, 0, 0.38);
  }

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

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
  }

  body {
    margin: 0;
    background: var(--bg);
    background-image: radial-gradient(ellipse at 85% 8%, rgba(244, 160, 74, 0.07), transparent 38%), radial-gradient(ellipse at 8% 90%, rgba(244, 160, 74, 0.04), transparent 30%);
    color: var(--text);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
  }

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

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

  button {
    font-family: inherit;
    cursor: pointer;
  }

  :focus-visible {
    outline: 3px solid rgba(244, 160, 74, 0.6);
    outline-offset: 3px;
    border-radius: 6px;
  }

  .wrap {
    width: min(1280px, 100% - 48px);
    margin-inline: auto;
  }

  .skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 90;
    background: var(--brand);
    color: #1c0f06;
    padding: 12px 18px;
    border-radius: 0 0 14px 0;
  }

  .skip-link:focus {
    left: 0;
  }

  /* ---------------------------------------------------------- */
  /* Header */
  .site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 60;
    background: rgba(10, 8, 7, 0.36);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .site-header.is-scrolled {
    background: rgba(12, 10, 8, 0.82);
    border-bottom-color: var(--border);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.32);
  }

  .nav-inner {
    height: 76px;
    display: flex;
    align-items: center;
    gap: 26px;
  }

  .brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    font-weight: 800;
    font-size: 1.32rem;
    line-height: 1.2;
    color: #fff;
  }

  .brand-logo .logo-inner {
    color: var(--brand);
    font-weight: 900;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 13px;
    background: linear-gradient(145deg, #ffb066, var(--brand-deep));
    display: grid;
    place-items: center;
    color: #201208;
    box-shadow: 0 0 24px rgba(244, 160, 74, 0.24);
  }

  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-inline: auto;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.94rem;
    color: var(--muted);
    position: relative;
    transition: color 0.2s ease, background 0.2s ease;
  }

  .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.07);
  }

  .nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
  }

  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 4px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
    box-shadow: 0 0 12px rgba(244, 160, 74, 0.7);
  }

  .nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .menu-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #fff;
  }

  .menu-toggle:active {
    transform: scale(0.97);
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 76px;
    left: 14px;
    right: 14px;
    z-index: 55;
    background: rgba(14, 11, 9, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: 22px;
    padding: 16px;
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(-12px);
    pointer-events: none;
    transition: opacity 0.24s ease, transform 0.24s ease;
  }

  .mobile-menu.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .mobile-menu .nav-link {
    width: 100%;
    border-radius: 14px;
    color: #fff;
    justify-content: flex-start;
  }

  .mobile-menu .btn {
    margin-top: 12px;
    width: 100%;
    justify-content: center;
  }

  @media (max-width: 1023px) {
    .desktop-nav {
      display: none;
    }

    .menu-toggle {
      display: grid;
    }

    .mobile-menu {
      display: block;
    }

    .nav-quick-link {
      display: none;
    }
  }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 46px;
    padding: 0 22px;
    border-radius: 14px;
    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1.2;
    border: 1px solid transparent;
    text-align: center;
    transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, color 0.22s ease;
  }

  .btn:active {
    transform: scale(0.98);
  }

  .btn-primary {
    background: linear-gradient(180deg, #ffb45e 0%, #f49b42 52%, #e98932 100%);
    color: #1d0e06;
    box-shadow: 0 14px 32px -12px rgba(244, 160, 74, 0.64);
    border-color: rgba(255, 198, 128, 0.45);
  }

  .btn-primary:hover {
    background: linear-gradient(180deg, #ffc178 0%, #f8a951 52%, #ef9138 100%);
    box-shadow: 0 18px 38px -12px rgba(244, 160, 74, 0.78);
    transform: translateY(-2px);
  }

  .btn-outline {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--border-light);
    color: #fff;
  }

  .btn-outline:hover {
    background: rgba(255, 255, 255, 0.13);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.26);
  }

  .btn-sm {
    min-height: 40px;
    padding: 0 16px;
    border-radius: 12px;
    font-size: 0.88rem;
  }

  .btn-lg {
    min-height: 54px;
    padding: 0 28px;
    border-radius: 16px;
    font-size: 1rem;
  }

  /* Sections */
  .section {
    padding-block: clamp(62px, 8vw, 120px);
    position: relative;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: 999px;
    background: rgba(244, 160, 74, 0.09);
    border: 1px solid rgba(244, 160, 74, 0.24);
    color: var(--brand);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
  }

  .section-title {
    font-size: clamp(1.8rem, 3.6vw, 3rem);
    line-height: 1.22;
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #fff;
    margin: 0 0 16px;
  }

  .section-desc {
    max-width: 72ch;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.85;
  }

  .section-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 22px;
    margin-bottom: 40px;
  }

  .section-link {
    color: var(--brand);
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
  }

  .section-link:hover {
    color: var(--brand-hover);
  }

  /* Hero */
  .hero-section {
    min-height: 100svh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 130px 0 70px;
    background-color: #0a0807;
  }

  .hero-section .bg-layer {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(180deg, rgba(10, 8, 7, 0.62) 0%, rgba(10, 8, 7, 0.55) 45%, rgba(12, 10, 8, 0.96) 100%),
      url('/assets/images/backpic/back-1.jpg');
    background-size: cover;
    background-position: center 26%;
  }

  .hero-section .bg-layer::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse at 25% 42%, rgba(244, 160, 74, 0.2), transparent 48%),
      radial-gradient(ellipse at 78% 72%, rgba(120, 90, 60, 0.2), transparent 40%);
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    width: min(1280px, 100% - 48px);
    margin-inline: auto;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1.12fr 0.88fr;
    align-items: center;
    gap: 44px;
  }

  .hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.86rem;
    font-weight: 600;
    margin-bottom: 22px;
    backdrop-filter: blur(8px);
  }

  .hero-kicker i {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 0 4px rgba(244, 160, 74, 0.16);
  }

  .hero-title {
    margin: 0;
    font-size: clamp(2.3rem, 5vw, 4.1rem);
    line-height: 1.16;
    font-weight: 900;
    letter-spacing: -0.028em;
    color: #fff;
    max-width: 12em;
  }

  .hero-title .word {
    color: var(--brand);
  }

  .hero-desc {
    max-width: 48ch;
    margin: 24px 0 32px;
    color: rgba(255, 246, 236, 0.8);
    font-size: clamp(1rem, 1.5vw, 1.12rem);
    line-height: 1.9;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 30px;
  }

  .hero-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 0.85rem;
  }

  .hero-tags span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
  }

  .hero-play-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    justify-self: center;
  }

  .hero-play-btn {
    position: relative;
    width: 128px;
    height: 128px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.075);
    border: 1px solid rgba(255, 255, 255, 0.24);
    backdrop-filter: blur(14px);
    color: var(--brand);
    transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
    outline: none;
  }

  .hero-play-btn:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(244, 160, 74, 0.55);
  }

  .hero-play-btn .play-core {
    position: absolute;
    inset: 15px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 25%, #ffba68, #ef9b3f 62%, #dd8230);
    box-shadow: 0 0 40px rgba(244, 160, 74, 0.35);
    display: grid;
    place-items: center;
    color: #1b0c03;
  }

  .hero-play-tip {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.86rem;
    text-align: center;
  }

  @media (max-width: 960px) {
    .hero-section {
      min-height: auto;
      padding-top: 120px;
    }

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

    .hero-play-wrap {
      flex-direction: row;
      justify-content: flex-start;
      gap: 18px;
    }
  }

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

  .feature-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 26px;
    padding: 28px;
    min-height: 260px;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(8px);
    transition: transform 0.28s ease, background 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
  }

  .feature-card:nth-child(2) {
    transform: translateY(24px);
    background: rgba(255, 255, 255, 0.055);
  }

  .feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(244, 160, 74, 0.3);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.65);
  }

  .feature-card:nth-child(2):hover {
    transform: translateY(14px);
  }

  .feature-icon {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: rgba(244, 160, 74, 0.12);
    border: 1px solid rgba(244, 160, 74, 0.22);
    color: var(--brand);
    margin-bottom: 20px;
  }

  .feature-title {
    font-size: 1.24rem;
    font-weight: 800;
    line-height: 1.4;
    color: #fff;
    margin: 0 0 10px;
  }

  .feature-card p {
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.8;
    margin: 0;
  }

  .feature-link {
    margin-top: auto;
    padding-top: 18px;
    color: var(--brand);
    font-weight: 700;
    font-size: 0.86rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .feature-link:hover {
    color: var(--brand-hover);
  }

  @media (max-width: 1100px) {
    .feature-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .feature-card:nth-child(3) {
      grid-column: span 2;
      min-height: 0;
      transform: none;
    }

    .feature-card:nth-child(2) {
      transform: none;
    }
  }

  @media (max-width: 640px) {
    .feature-grid {
      grid-template-columns: 1fr;
    }

    .feature-card:nth-child(2),
    .feature-card:nth-child(3) {
      grid-column: auto;
      transform: none;
    }

    .feature-card {
      min-height: 0;
    }
  }

  /* Scene */
  .scene-wrap {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: 60px;
    align-items: center;
  }

  .scene-stage {
    background: #14100c;
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 14px;
    box-shadow: 0 38px 80px rgba(0, 0, 0, 0.42);
  }

  .screen-media {
    position: relative;
    border-radius: 22px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: #171310;
  }

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

  .screen-vignette {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.05) 45%, rgba(0, 0, 0, 0.5) 100%);
  }

  .screen-play-mini {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 66px;
    height: 66px;
    border-radius: 50%;
    background: rgba(10, 8, 7, 0.55);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.28);
    display: grid;
    place-items: center;
    color: #fff;
    transition: transform 0.2s ease, background 0.2s ease;
  }

  .screen-play-mini:hover {
    background: rgba(244, 160, 74, 0.78);
    color: #170c05;
    transform: translate(-50%, -50%) scale(1.04);
  }

  .screen-kicker {
    position: absolute;
    left: 16px;
    top: 14px;
    padding: 7px 13px;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
    background: rgba(10, 8, 7, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    backdrop-filter: blur(8px);
  }

  .screen-progress {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 18px;
    height: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.22);
  }

  .screen-progress i {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 60%;
    background: var(--brand);
    border-radius: 999px;
  }

  .scene-stage-row {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .stage-mini-card {
    border-radius: 16px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .stage-mini-card img {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 12px;
    flex-shrink: 0;
  }

  .stage-mini-card span {
    font-size: 12px;
    color: var(--muted);
    line-height: 1.4;
  }

  .step-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .step-item {
    display: grid;
    grid-template-columns: 62px 1fr;
    gap: 16px;
    align-items: start;
    border-bottom: 1px solid var(--border);
    padding-bottom: 22px;
  }

  .step-item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }

  .step-num {
    font-size: 1.75rem;
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 1px rgba(244, 160, 74, 0.6);
    line-height: 1;
  }

  .step-item h3 {
    font-size: 1.12rem;
    font-weight: 800;
    color: #fff;
    margin: 0 0 8px;
    line-height: 1.4;
  }

  .step-item p {
    margin: 0;
    color: var(--muted);
    font-size: 0.91rem;
    line-height: 1.8;
  }

  @media (max-width: 980px) {
    .scene-wrap {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 520px) {
    .scene-stage-row {
      grid-template-columns: 1fr;
    }

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

  /* Proof */
  .proof-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .proof-card {
    background: #15110d;
    border: 1px solid var(--border);
    border-radius: 26px;
    padding: 24px;
    position: relative;
    transition: border-color 0.2s ease, transform 0.2s ease;
  }

  .proof-card:hover {
    border-color: rgba(244, 160, 74, 0.28);
    transform: translateY(-3px);
  }

  .proof-quote-mark {
    font-size: 2.2rem;
    line-height: 1;
    color: rgba(244, 160, 74, 0.55);
    display: block;
    margin-bottom: 6px;
  }

  .proof-text {
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.97rem;
    line-height: 1.9;
    margin: 0 0 18px;
  }

  .proof-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 0.84rem;
  }

  .proof-avatar {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: radial-gradient(circle at 30% 30%, rgba(244, 160, 74, 0.9), var(--brand-deep));
    color: #1a0f07;
    font-weight: 800;
    font-size: 0.85rem;
  }

  .topic-list-shell {
    margin-top: 44px;
    display: grid;
    grid-template-columns: 0.85fr 1.4fr;
    gap: 30px;
    align-items: center;
    background: linear-gradient(145deg, rgba(244, 160, 74, 0.04), rgba(255, 255, 255, 0.02));
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 30px;
  }

  .topic-intro h3 {
    color: #fff;
    font-size: 1.3rem;
    font-weight: 800;
    margin: 0 0 12px;
  }

  .topic-intro p {
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.85;
    margin: 0 0 14px;
  }

  .hot-list {
    display: flex;
    flex-direction: column;
  }

  .hot-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 13px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  }

  .hot-item:last-child {
    border-bottom: 0;
  }

  .hot-index {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: rgba(244, 160, 74, 0.12);
    color: var(--brand);
    font-size: 0.82rem;
    font-weight: 800;
  }

  .hot-main {
    flex: 1;
    min-width: 0;
  }

  .hot-title {
    display: block;
    color: rgba(255, 255, 255, 0.92);
    font-weight: 700;
    font-size: 0.94rem;
    line-height: 1.5;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    transition: color 0.2s ease;
  }

  .hot-title:hover {
    color: var(--brand);
  }

  .hot-sub {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--faint);
    font-size: 0.76rem;
    margin-top: 3px;
  }

  @media (max-width: 1080px) {
    .proof-grid {
      grid-template-columns: 1fr;
    }

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

  /* FAQ */
  .faq-list {
    max-width: 880px;
    margin-inline: auto;
  }

  .faq-item {
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid var(--border);
    border-radius: 20px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.25s ease, background 0.25s ease;
  }

  .faq-item.open {
    border-color: rgba(244, 160, 74, 0.32);
    background: rgba(255, 255, 255, 0.05);
  }

  .faq-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    text-align: left;
    background: transparent;
    border: 0;
    color: rgba(255, 255, 255, 0.92);
    font-size: 1.02rem;
    font-weight: 700;
    padding: 20px 22px;
    line-height: 1.5;
  }

  .faq-item.open .faq-btn {
    color: var(--brand);
  }

  .faq-icon {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid var(--border-light);
    display: grid;
    place-items: center;
    flex-shrink: 0;
    transition: transform 0.28s ease, background 0.28s ease, border-color 0.28s ease;
  }

  .faq-item.open .faq-icon {
    transform: rotate(135deg);
    background: rgba(244, 160, 74, 0.14);
    border-color: rgba(244, 160, 74, 0.4);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.32s ease;
  }

  .faq-answer-inner {
    padding: 0 22px 22px;
    color: var(--muted);
    font-size: 0.93rem;
    line-height: 1.9;
    max-width: 70ch;
  }

  .faq-item.open .faq-answer {
    max-height: 300px;
  }

  /* Closing CTA */
  .closing-cta {
    position: relative;
    background-image: linear-gradient(135deg, rgba(10, 8, 7, 0.94), rgba(20, 12, 7, 0.78)), url('/assets/images/backpic/back-5.jpg');
    background-size: cover;
    background-position: center 40%;
    border-block: 1px solid var(--border);
  }

  .cta-panel {
    max-width: 1020px;
    margin-inline: auto;
    text-align: center;
    padding: clamp(56px, 8vw, 120px) 0;
  }

  .cta-panel .section-title {
    max-width: 16em;
    margin-inline: auto;
  }

  .cta-panel .section-desc {
    margin: 16px auto 34px;
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
  }

  /* Fixed bottom conversion bar */
  .bottom-bar {
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: 14px;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    background: rgba(14, 11, 9, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 18px;
    padding: 12px 14px 12px 20px;
    max-width: calc(100% - 28px);
    margin-inline: auto;
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.4);
  }

  .bottom-bar .bar-copy {
    color: rgba(255, 255, 255, 0.94);
    font-size: 0.88rem;
    font-weight: 600;
    line-height: 1.5;
  }

  .bottom-bar .bar-copy small {
    display: block;
    color: var(--muted);
    font-size: 0.74rem;
    font-weight: 400;
    margin-top: 2px;
  }

  @media (max-width: 560px) {
    .bottom-bar {
      flex-direction: row;
      flex-wrap: wrap;
      gap: 8px;
      padding: 12px;
      bottom: 10px;
      left: 10px;
      right: 10px;
      max-width: calc(100% - 20px);
    }

    .bottom-bar .bar-copy {
      width: 100%;
    }
  }

  /* Footer */
  .site-footer {
    padding-top: 80px;
    border-top: 1px solid var(--border);
    background: #0a0807;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr 0.9fr 1fr;
    gap: 36px;
  }

  .footer-brand .brand-logo {
    margin-bottom: 18px;
  }

  .footer-brand p {
    color: var(--muted);
    font-size: 0.88rem;
    line-height: 1.9;
    max-width: 42ch;
  }

  .footer-block h4 {
    color: #fff;
    font-size: 0.92rem;
    font-weight: 800;
    margin: 0 0 18px;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    color: var(--muted);
    font-size: 0.86rem;
  }

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

  .footer-bottom {
    border-top: 1px solid var(--border);
    margin-top: 60px;
    padding: 26px 0;
    font-size: 0.78rem;
    color: var(--faint);
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
  }

  .footer-disclaimer {
    max-width: 80ch;
  }

  @media (max-width: 950px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 600px) {
    .wrap {
      width: min(100% - 28px, 1280px);
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }

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

  /* Modal */
  .modal {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
  }

  .modal.show {
    display: flex;
  }

  .modal-bg {
    position: absolute;
    inset: 0;
    background: rgba(4, 3, 2, 0.78);
    backdrop-filter: blur(10px);
  }

  .modal-panel {
    position: relative;
    background: #15110e;
    border: 1px solid var(--border-light);
    border-radius: 26px;
    max-width: 680px;
    width: 100%;
    padding: 22px;
    box-shadow: var(--shadow);
  }

  .modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 2;
    width: 38px;
    height: 38px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    display: grid;
    place-items: center;
  }

  .modal-close:hover {
    background: rgba(244, 160, 74, 0.2);
    border-color: rgba(244, 160, 74, 0.35);
  }

  .modal-media {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    aspect-ratio: 16/8.6;
    margin-bottom: 18px;
  }

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

  .modal-copy {
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 18px;
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
      scroll-behavior: auto !important;
    }
  }

  main {
    padding-bottom: 86px;
  }

/* roulang page: category1 */
:root {
    --brand: #f4a04a;
    --brand-hover: #fbb069;
    --brand-deep: #e0842d;
    --bg: #0c0a08;
    --bg-soft: #15110d;
    --card: rgba(255, 255, 255, 0.045);
    --card-hover: rgba(255, 255, 255, 0.085);
    --text: #fff6ec;
    --muted: rgba(255, 246, 236, 0.68);
    --faint: rgba(255, 246, 236, 0.42);
    --border: rgba(255, 255, 255, 0.1);
    --border-light: rgba(255, 255, 255, 0.16);
    --radius: 18px;
    --radius-sm: 12px;
    --shadow: 0 22px 50px rgba(0, 0, 0, 0.38);
    --shadow-card: 0 10px 30px rgba(0,0,0,0.24);
}
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}
body {
    margin: 0;
    background: var(--bg);
    background-image:
        radial-gradient(ellipse at 85% 8%, rgba(244, 160, 74, 0.07), transparent 38%),
        radial-gradient(ellipse at 8% 90%, rgba(244, 160, 74, 0.04), transparent 30%);
    color: var(--text);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}
*, *::before, *::after { box-sizing: border-box; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
ul, ol { padding: 0; margin: 0; list-style: none; }
h1, h2, h3, h4, h5, p { margin: 0; }
:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(244, 160, 74, 0.5);
    border-radius: 10px;
}

.wrap {
    max-width: 1220px;
    margin-inline: auto;
    padding-inline: 22px;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    background: rgba(10, 8, 7, 0.36);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.is-scrolled {
    background: rgba(12, 10, 8, 0.82);
    border-bottom-color: var(--border);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.32);
}
.nav-inner {
    height: 76px;
    display: flex;
    align-items: center;
    gap: 26px;
}
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    font-weight: 800;
    font-size: 1.32rem;
    line-height: 1.2;
    color: #fff;
}
.brand-logo .logo-inner { color: var(--brand); font-weight: 900; }
.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 13px;
    background: linear-gradient(145deg, #ffb066, var(--brand-deep));
    display: grid;
    place-items: center;
    color: #201208;
    box-shadow: 0 0 24px rgba(244, 160, 74, 0.24);
}
.desktop-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-inline: auto;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.94rem;
    color: var(--muted);
    position: relative;
    transition: color 0.2s ease, background 0.2s ease;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.07); }
.nav-link.active { color: #fff; background: rgba(255, 255, 255, 0.08); }
.nav-link.active::after {
    content: "";
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 4px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
    box-shadow: 0 0 12px rgba(244, 160, 74, 0.7);
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.menu-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #fff;
}
.menu-toggle:active { transform: scale(0.97); }
.mobile-menu {
    display: none;
    position: fixed;
    top: 76px;
    left: 14px;
    right: 14px;
    z-index: 55;
    background: rgba(14, 11, 9, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: 22px;
    padding: 16px;
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(-12px);
    pointer-events: none;
    transition: opacity 0.24s ease, transform 0.24s ease;
}
.mobile-menu.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.mobile-menu .nav-link {
    width: 100%;
    border-radius: 14px;
    color: #fff;
}
.mobile-menu .btn { margin-top: 12px; width: 100%; justify-content: center; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 46px;
    padding: 0 22px;
    border-radius: 14px;
    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1.2;
    border: 1px solid transparent;
    text-align: center;
    transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, color 0.22s ease;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
    background: linear-gradient(180deg, #ffb45e 0%, #f49b42 52%, #e98932 100%);
    color: #1d0e06;
    box-shadow: 0 14px 32px -12px rgba(244, 160, 74, 0.64);
    border-color: rgba(255, 198, 128, 0.45);
}
.btn-primary:hover {
    background: linear-gradient(180deg, #ffc178 0%, #f8a951 52%, #ef9138 100%);
    box-shadow: 0 18px 38px -12px rgba(244, 160, 74, 0.78);
    transform: translateY(-2px);
}
.btn-outline {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--border-light);
    color: #fff;
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.13);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.26);
}
.btn-sm { min-height: 40px; padding: 0 16px; border-radius: 12px; font-size: 0.88rem; }
.btn-lg { min-height: 54px; padding: 0 28px; border-radius: 16px; font-size: 1rem; }

/* 分类页头 */
.category-hero {
    position: relative;
    padding: 146px 0 44px;
    background:
        linear-gradient(rgba(12, 10, 8, 0.82), rgba(12, 10, 8, 0.94)),
        url("/assets/images/backpic/back-2.jpg") center center / cover no-repeat;
    border-bottom: 1px solid var(--border);
}
.category-hero .hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 13px;
    background: rgba(244, 160, 74, 0.12);
    border: 1px solid rgba(244, 160, 74, 0.25);
    color: var(--brand);
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}
.category-hero h1 {
    max-width: 900px;
    font-size: clamp(1.9rem, 4.4vw, 3.55rem);
    font-weight: 900;
    line-height: 1.18;
    letter-spacing: -0.02em;
    color: #fff;
    margin-bottom: 18px;
}
.category-hero .lead {
    max-width: 63ch;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.85;
    margin-bottom: 22px;
}
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--faint);
    margin-top: 14px;
}
.breadcrumb a { color: var(--muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb-sep { opacity: 0.45; }

/* 统计带 */
.stat-band {
    position: relative;
    z-index: 2;
    margin-top: -26px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 30px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-around;
    gap: 22px;
    flex-wrap: wrap;
}
.stat-band .stat-item { text-align: center; min-width: 150px; }
.stat-band .num {
    display: block;
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--brand);
    line-height: 1.2;
    margin-bottom: 2px;
}
.stat-band .lbl { font-size: 0.82rem; color: var(--muted); }

/* section */
.section-block {
    padding-block: clamp(54px, 7vw, 94px);
}
.section-head {
    margin-bottom: 32px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.section-head h2 {
    font-size: clamp(1.4rem, 2.6vw, 2rem);
    line-height: 1.3;
    font-weight: 900;
    color: #fff;
}
.section-head .more-line {
    color: var(--faint);
    font-size: 0.86rem;
}
.section-head .more-line a {
    color: var(--brand);
    font-weight: 600;
    margin-left: 5px;
}
.section-head .more-line a:hover { color: var(--brand-hover); }

/* 筛选条 */
.filters-row {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 18px 6px;
    overflow: hidden;
}
.filters-scroll {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 14px;
    scrollbar-width: thin;
    scrollbar-color: rgba(244,160,74,0.3) transparent;
}
.filters-scroll::-webkit-scrollbar { height: 5px; }
.filters-scroll::-webkit-scrollbar-thumb { background: rgba(244,160,74,0.3); border-radius: 99px; }
.filter-chip {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    padding: 8px 17px;
    border-radius: 999px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.86rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}
.filter-chip:hover {
    color: #fff;
    border-color: var(--border-light);
    background: rgba(255,255,255,0.1);
}
.filter-chip.active {
    color: #1d0e06;
    background: linear-gradient(180deg, #ffb45e, #e98932);
    border-color: rgba(255,198,128,0.6);
    box-shadow: 0 8px 20px -8px rgba(244,160,74,0.7);
}

/* 封面卡片主网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}
.cover-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.28s ease, background 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
    display: flex;
    flex-direction: column;
}
.cover-card:hover {
    transform: translateY(-5px);
    background: var(--card-hover);
    box-shadow: var(--shadow-card);
    border-color: var(--border-light);
}
.cover-thumb {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #1f1813;
}
.cover-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}
.cover-card:hover .cover-thumb img { transform: scale(1.05); }
.cover-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(8, 6, 5, 0.64));
    pointer-events: none;
}
.cover-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    background: rgba(244, 160, 74, 0.9);
    color: #1b0e05;
    font-size: 0.72rem;
    font-weight: 800;
    padding: 4px 11px;
    border-radius: 999px;
    backdrop-filter: blur(6px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.18);
}
.cover-duration {
    position: absolute;
    right: 12px;
    bottom: 12px;
    z-index: 2;
    font-size: 0.72rem;
    font-weight: 700;
    background: rgba(12,10,8,0.66);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(6px);
    color: #fff;
    padding: 2px 7px;
    border-radius: 8px;
    letter-spacing: 0.03em;
}
.cover-info {
    padding: 15px 16px 14px;
    display: flex;
    flex-direction: column;
    gap: 9px;
    flex: 1;
}
.cover-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.85em;
}
.cover-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    color: var(--faint);
    font-size: 0.75rem;
    margin-top: auto;
}
.cover-meta .hot { color: var(--brand); font-weight: 700; }
.cover-link {
    font-size: 0.8rem;
    color: var(--brand);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.2s ease;
}
.cover-link:hover { color: var(--brand-hover); gap: 8px; }

/* 混合列表 */
.mix-list-wrap {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: clamp(16px, 3vw, 24px);
    padding: 20px;
    overflow: hidden;
}
.mix-list {
    display: flex;
    flex-direction: column;
}
.mix-row {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 15px 8px;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s ease;
}
.mix-row:last-child { border-bottom: 0; }
.mix-row:hover { background: rgba(255,255,255,0.035); }
.mix-index {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: rgba(244,160,74,0.09);
    border: 1px solid rgba(244,160,74,0.16);
    color: var(--brand);
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 0.82rem;
}
.mix-body {
    flex: 1;
    min-width: 0;
}
.mix-title {
    font-weight: 700;
    color: #fff;
    font-size: 0.95rem;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mix-sub {
    font-size: 0.76rem;
    color: var(--faint);
    margin-top: 3px;
}
.mix-tag {
    flex-shrink: 0;
    font-size: 0.76rem;
    background: rgba(244,160,74,0.08);
    border: 1px solid rgba(244,160,74,0.2);
    color: var(--brand);
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: 600;
}
.mix-stat {
    flex-shrink: 0;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--muted);
    text-align: right;
}
.text-enter-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand);
    font-weight: 700;
    font-size: 0.88rem;
    transition: gap 0.2s;
    margin-top: 10px;
}
.text-enter-link:hover { color: var(--brand-hover); gap: 12px; }

/* 加载更多区 */
.loadmore-row {
    padding-top: 38px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}
.loadmore-hint {
    font-size: 0.82rem;
    color: var(--faint);
}

/* FAQ */
.faq-wrap {
    max-width: 920px;
    margin-inline: auto;
}
.faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 12px;
    transition: background 0.22s ease, border-color 0.22s ease;
}
.faq-item:hover { border-color: var(--border-light); }
.faq-q {
    width: 100%;
    min-height: 58px;
    padding: 0 22px;
    background: transparent;
    border: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    color: #fff;
    font-weight: 700;
    font-size: 0.98rem;
    text-align: left;
    cursor: pointer;
}
.faq-icon {
    position: relative;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    border-radius: 50%;
    border: 1.4px solid var(--brand);
    background: transparent;
    transition: transform 0.25s ease, background 0.25s ease;
}
.faq-icon::before {
    content: "";
    position: absolute;
    left: 6px;
    right: 6px;
    top: 50%;
    height: 1.6px;
    background: var(--brand);
    transform: translateY(-50%);
}
.faq-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 6px;
    bottom: 6px;
    width: 1.6px;
    background: var(--brand);
    transform: translateX(-50%);
}
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 22px;
    color: var(--muted);
    font-size: 0.91rem;
}
.faq-item.is-open { background: var(--card-hover); }
.faq-item.is-open .faq-icon { transform: rotate(45deg); background: rgba(244,160,74,0.16); }
.faq-item.is-open .faq-a {
    max-height: 200px;
    padding-bottom: 20px;
}

/* Footer */
.site-footer {
    background: #0a0806;
    border-top: 1px solid var(--border);
    padding: 70px 0 38px;
    margin-top: clamp(40px,6vw,80px);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr 1fr 1.2fr;
    gap: 38px;
    padding-bottom: 38px;
}
.footer-brand p {
    color: var(--muted);
    font-size: 0.87rem;
    line-height: 1.9;
    margin-top: 14px;
    max-width: 360px;
}
.footer-block h4 {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 14px;
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
}
.footer-links a {
    color: var(--muted);
    font-size: 0.86rem;
    transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--brand); }
.footer-links span {
    color: var(--faint);
    font-size: 0.85rem;
}
.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px solid var(--border);
    padding-top: 24px;
    color: var(--faint);
    font-size: 0.78rem;
}
.footer-disclaimer { color: var(--faint); font-size: 0.74rem; }

/* 响应式 */
@media (min-width: 1024px) {
    .desktop-nav { display: flex; }
    .menu-toggle { display: none; }
    .mobile-menu { display: none !important; }
}
@media (max-width: 1023px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: grid; }
    .mobile-menu { display: block; }
    .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    .footer-brand { grid-column: span 2; }
}
@media (min-width: 640px) and (max-width: 1023px) {
    .stat-band { margin-top: -40px; }
}
@media (max-width: 639px) {
    .video-grid { grid-template-columns: 1fr; }
    .stat-band {
        gap: 16px;
        padding: 20px 14px;
    }
    .stat-band .stat-item { min-width: 96px; }
    .stat-band .num { font-size: 1.25rem; }
    .nav-actions .btn-sm { display: none; }
    .brand-logo { font-size: 1.08rem; }
    .mix-row { flex-wrap: wrap; gap: 10px; }
    .mix-tag { order: 3; }
    .mix-stat { order: 4; width: 100%; text-align: left; padding-left: 52px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
    .faq-q { font-size: 0.9rem; padding: 0 16px; }
    .faq-a { padding: 0 16px; }
}
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}