/* roulang page: index */
:root {
    --bg: #060A18;
    --layer-1: #0C1329;
    --layer-2: #121A33;
    --star-blue: #4D7CFE;
    --aurora: #37E1D0;
    --nebula: #9B6BFF;
    --warm-1: #FF7A45;
    --warm-2: #FF5E7A;
    --t-1: #E6ECFF;
    --t-2: #9AA7C7;
    --t-3: #5C6889;
    --line: rgba(255, 255, 255, .08);
    --line-strong: rgba(255, 255, 255, .14);
    --glass-bg: rgba(255, 255, 255, .045);
    --r-glass: 18px;
    --r-solid: 16px;
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, .45);
    --shadow-deep: 0 18px 44px rgba(0, 0, 0, .55);
  }

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

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    background-color: var(--bg);
    background-image:
      radial-gradient(1200px 620px at 12% -6%, rgba(155, 107, 255, .16), transparent 62%),
      radial-gradient(980px 560px at 88% 4%, rgba(55, 225, 208, .10), transparent 60%),
      radial-gradient(760px 520px at 50% 96%, rgba(77, 124, 254, .12), transparent 64%);
    background-repeat: no-repeat;
    color: var(--t-1);
    font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    font-size: 15.5px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
  input, textarea { font: inherit; }
  ul, ol { margin: 0; padding: 0; list-style: none; }
  h1, h2, h3, h4, p { margin: 0; }

  ::selection { background: rgba(77, 124, 254, .38); }

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

  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .container-wide {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }

  /* ============ 导航 ============ */
  .site-header {
    position: sticky;
    top: 12px;
    z-index: 80;
    padding: 0 24px;
    transition: background-color .3s ease, box-shadow .3s ease;
  }

  .nav-panel {
    max-width: 1200px;
    margin: 0 auto;
    height: 72px;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 0 20px;
    border-radius: var(--r-glass);
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, .045);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    box-shadow: var(--shadow-glass), inset 0 1px 0 rgba(255, 255, 255, .06);
    transition: background-color .3s ease, border-color .3s ease, box-shadow .3s ease;
  }

  .site-header.is-scrolled .nav-panel {
    background: rgba(6, 10, 24, .86);
    border-color: rgba(255, 255, 255, .18);
    box-shadow: 0 14px 40px rgba(0, 0, 0, .6), inset 0 1px 0 rgba(255, 255, 255, .06);
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -.01em;
    white-space: nowrap;
    flex: 0 0 auto;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
    border-radius: 9px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--star-blue), var(--nebula));
    box-shadow: 0 0 22px rgba(77, 124, 254, .5);
    flex: 0 0 auto;
  }

  .brand-mark svg { width: 16px; height: 16px; }

  .nav-cards {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
  }

  .nav-card {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 40px;
    padding: 0 13px;
    border-radius: 12px;
    font-size: 14px;
    color: var(--t-2);
    border: 1px solid transparent;
    position: relative;
    transition: color .22s ease, background-color .22s ease, border-color .22s ease, transform .22s ease;
    white-space: nowrap;
  }

  .nav-card svg { width: 18px; height: 18px; flex: 0 0 auto; opacity: .85; }

  .nav-card:hover {
    color: var(--t-1);
    background: rgba(255, 255, 255, .07);
    border-color: var(--line);
    transform: translateY(-1px);
  }

  .nav-card.is-active {
    color: var(--t-1);
    background: rgba(77, 124, 254, .16);
    border-color: rgba(77, 124, 254, .34);
  }

  .nav-card.is-active::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: -1px;
    height: 2px;
    border-radius: 2px;
    background: var(--aurora);
    box-shadow: 0 0 12px rgba(55, 225, 208, .85);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: .01em;
    transition: transform .22s ease, box-shadow .22s ease, background-color .22s ease, border-color .22s ease, color .22s ease;
    white-space: nowrap;
  }

  .btn-primary {
    padding: 11px 22px;
    font-size: 14.5px;
    color: #fff;
    background: linear-gradient(120deg, var(--warm-1), var(--warm-2));
    box-shadow: 0 10px 30px rgba(255, 94, 122, .32);
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 0 1px rgba(255, 122, 69, .5), 0 0 40px rgba(55, 225, 208, .4), 0 14px 34px rgba(255, 94, 122, .4);
  }

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

  .btn-ghost {
    padding: 11px 22px;
    font-size: 14.5px;
    color: var(--t-1);
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--line-strong);
  }

  .btn-ghost:hover {
    background: rgba(255, 255, 255, .10);
    border-color: rgba(255, 255, 255, .24);
    transform: translateY(-2px);
  }

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

  .nav-cta { margin-left: 6px; padding: 9px 18px; font-size: 13.5px; }

  .nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, .05);
    margin-left: auto;
    place-items: center;
  }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--t-1);
    position: relative;
    transition: background-color .2s ease;
  }

  .nav-toggle span::before,
  .nav-toggle span::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--t-1);
    transition: transform .25s ease, top .25s ease;
  }

  .nav-toggle span::before { top: -6px; }
  .nav-toggle span::after { top: 6px; }

  .mobile-panel {
    position: fixed;
    inset: 0;
    z-index: 120;
    display: none;
    flex-direction: column;
    gap: 20px;
    padding: 22px 20px 32px;
    background: rgba(6, 10, 24, .95);
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    overflow-y: auto;
  }

  .mobile-panel.is-open { display: flex; }

  .mobile-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .mobile-close {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, .05);
    display: grid;
    place-items: center;
    font-size: 18px;
    color: var(--t-2);
  }

  .mobile-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .mobile-link {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 14px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .045);
    font-size: 14.5px;
    font-weight: 600;
    transition: border-color .2s ease, background-color .2s ease;
  }

  .mobile-link small {
    font-size: 12px;
    font-weight: 400;
    color: var(--t-3);
    line-height: 1.5;
  }

  .mobile-link:hover,
  .mobile-link.is-active {
    background: rgba(77, 124, 254, .16);
    border-color: rgba(77, 124, 254, .38);
  }

  /* ============ 通用板块 ============ */
  .section { padding: 88px 0; }
  .section-tight { padding: 64px 0; }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: .06em;
    color: var(--aurora);
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid rgba(55, 225, 208, .3);
    background: rgba(55, 225, 208, .08);
  }

  .sec-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 40px;
  }

  .sec-title {
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.25;
    font-weight: 650;
    letter-spacing: -.01em;
  }

  .sec-desc {
    color: var(--t-2);
    font-size: 14.5px;
    max-width: 620px;
    margin-top: 10px;
  }

  .link-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--aurora);
    position: relative;
    padding-bottom: 2px;
    white-space: nowrap;
  }

  .link-more::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--aurora);
    transition: width .25s ease;
  }

  .link-more:hover::after { width: 100%; }

  .glass {
    background: var(--glass-bg);
    border: 1px solid var(--line-strong);
    border-radius: var(--r-glass);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    box-shadow: var(--shadow-glass), inset 0 1px 0 rgba(255, 255, 255, .06);
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease, background-color .25s ease;
  }

  .glass:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, .20);
    box-shadow: 0 16px 44px rgba(0, 0, 0, .55), inset 0 1px 0 rgba(255, 255, 255, .08);
  }

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

  .solid-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, .18);
    box-shadow: 0 22px 52px rgba(0, 0, 0, .6);
  }

  .tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--aurora);
    background: rgba(55, 225, 208, .10);
    border: 1px solid rgba(55, 225, 208, .26);
  }

  .tag-nebula { color: #C4A6FF; background: rgba(155, 107, 255, .12); border-color: rgba(155, 107, 255, .3); }
  .tag-blue { color: #A8C0FF; background: rgba(77, 124, 254, .13); border-color: rgba(77, 124, 254, .32); }

  /* ============ Hero ============ */
  .hero {
    position: relative;
    padding: 76px 0 84px;
    overflow: hidden;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: .26;
    filter: saturate(115%);
    pointer-events: none;
  }

  .hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(6, 10, 24, .94) 0%, rgba(6, 10, 24, .78) 46%, rgba(6, 10, 24, .92) 100%);
  }

  .hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 56px;
    align-items: center;
  }

  .hero-copy { max-width: 560px; }

  .hero h1 {
    font-size: clamp(30px, 4.6vw, 54px);
    line-height: 1.12;
    font-weight: 700;
    letter-spacing: -.02em;
    margin: 20px 0 0;
  }

  .hero h1 .hl {
    background: linear-gradient(96deg, var(--star-blue), var(--aurora) 62%, var(--nebula));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .hero-sub {
    margin-top: 18px;
    font-size: 16.5px;
    color: var(--t-2);
    max-width: 500px;
  }

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

  .hero-stats {
    display: flex;
    align-items: center;
    gap: 22px;
    margin-top: 38px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    flex-wrap: wrap;
  }

  .hero-stat { padding-right: 22px; border-right: 1px solid var(--line); }
  .hero-stat:last-child { border-right: none; padding-right: 0; }

  .hero-stat b {
    display: block;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -.01em;
    background: linear-gradient(100deg, #E6ECFF, #A8C0FF);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .hero-stat span { font-size: 12.5px; color: var(--t-3); }

  .hero-phone-wrap { display: flex; justify-content: center; }

  .hero-phone {
    position: relative;
    width: 320px;
    aspect-ratio: 9 / 16;
    border-radius: 26px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .16);
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    box-shadow: 0 0 60px rgba(155, 107, 255, .25), 0 26px 60px rgba(0, 0, 0, .6);
  }

  .hero-phone::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(6, 10, 24, .18) 0%, rgba(6, 10, 24, .1) 42%, rgba(6, 10, 24, .88) 100%);
    z-index: 2;
  }

  .hero-phone-cover {
    position: absolute;
    inset: 18px 18px 96px;
    width: calc(100% - 36px);
    height: calc(100% - 114px);
    object-fit: cover;
    border-radius: 16px;
    z-index: 1;
  }

  .hero-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 3;
    font-size: 11.5px;
    font-weight: 600;
    padding: 4px 11px;
    border-radius: 999px;
    color: #fff;
    background: rgba(6, 10, 24, .62);
    border: 1px solid rgba(255, 255, 255, .2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  .hero-duration {
    position: absolute;
    right: 18px;
    bottom: 78px;
    z-index: 3;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 8px;
    color: var(--t-1);
    background: rgba(6, 10, 24, .7);
    border: 1px solid rgba(255, 255, 255, .16);
  }

  .hero-play {
    position: absolute;
    left: 50%;
    top: 42%;
    transform: translate(-50%, -50%);
    z-index: 3;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .28);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: inset 0 0 0 3px rgba(55, 225, 208, .35);
    transition: transform .25s ease, box-shadow .25s ease;
  }

  .hero-play:hover { transform: translate(-50%, -50%) scale(1.06); box-shadow: inset 0 0 0 3px rgba(55, 225, 208, .7), 0 0 34px rgba(55, 225, 208, .5); }

  .hero-play svg { width: 22px; height: 22px; margin-left: 3px; }

  .hero-phone-foot {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 18px;
    z-index: 3;
  }

  .hero-phone-foot strong { font-size: 15px; display: block; }
  .hero-phone-foot span { font-size: 12.5px; color: var(--t-2); }

  /* ============ 片段卡带 ============ */
  .reel-wrap { position: relative; }

  .reel-track {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 6px 2px 18px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .reel-track::-webkit-scrollbar { display: none; }

  .reel-card {
    flex: 0 0 auto;
    width: 220px;
    scroll-snap-align: start;
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--layer-1);
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  }

  .reel-card:hover {
    transform: translateY(-4px);
    border-color: rgba(55, 225, 208, .45);
    box-shadow: 0 18px 44px rgba(0, 0, 0, .6);
  }

  .reel-thumb {
    position: relative;
    aspect-ratio: 9 / 16;
    overflow: hidden;
  }

  .reel-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .3s ease;
  }

  .reel-card:hover .reel-thumb img { transform: scale(1.04); }

  .reel-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 34%, rgba(6, 10, 24, .94) 100%);
  }

  .reel-dur {
    position: absolute;
    right: 10px;
    top: 10px;
    z-index: 2;
    font-size: 11.5px;
    padding: 3px 8px;
    border-radius: 7px;
    background: rgba(6, 10, 24, .72);
    border: 1px solid rgba(255, 255, 255, .16);
  }

  .reel-body {
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 2;
  }

  .reel-body h3 {
    font-size: 13.5px;
    font-weight: 600;
    line-height: 1.45;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .reel-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    font-size: 11.5px;
    color: var(--t-2);
  }

  .reel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, .07);
    border: 1px solid rgba(255, 255, 255, .18);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: background-color .22s ease, transform .22s ease, border-color .22s ease;
  }

  .reel-arrow:hover {
    background: rgba(77, 124, 254, .28);
    border-color: rgba(55, 225, 208, .5);
    transform: translateY(-50%) scale(1.06);
  }

  .reel-arrow.prev { left: -8px; }
  .reel-arrow.next { right: -8px; }
  .reel-arrow svg { width: 18px; height: 18px; }

  /* ============ 种草清单 ============ */
  .pick-list { border-top: 1px solid var(--line); }

  .pick-item {
    display: grid;
    grid-template-columns: 92px 200px minmax(0, 1fr) 44px;
    align-items: center;
    gap: 26px;
    padding: 26px 4px;
    border-bottom: 1px solid transparent;
    border-image: linear-gradient(90deg, rgba(255, 255, 255, .14), rgba(255, 255, 255, 0) 88%) 1;
    transition: background-color .25s ease, padding-left .25s ease;
  }

  .pick-item:hover {
    background: rgba(255, 255, 255, .03);
    padding-left: 14px;
  }

  .pick-index {
    font-size: 46px;
    font-weight: 700;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1.4px rgba(155, 107, 255, .75);
    letter-spacing: -.02em;
  }

  .pick-thumb {
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--line);
  }

  .pick-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
  .pick-item:hover .pick-thumb img { transform: scale(1.05); }

  .pick-text h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
  .pick-text p { font-size: 14px; color: var(--t-2); max-width: 620px; }

  .pick-go {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    border: 1px solid var(--line-strong);
    color: var(--t-2);
    transition: color .22s ease, border-color .22s ease, background-color .22s ease, transform .22s ease;
  }

  .pick-go:hover {
    color: var(--aurora);
    border-color: rgba(55, 225, 208, .5);
    background: rgba(55, 225, 208, .1);
    transform: translateX(3px);
  }

  /* ============ 口碑条 ============ */
  .voice-wrap {
    overflow: hidden;
    padding: 6px 0 10px;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  }

  .voice-track {
    display: flex;
    gap: 16px;
    width: max-content;
    animation: voiceScroll 46s linear infinite;
  }

  .voice-wrap:hover .voice-track { animation-play-state: paused; }

  @keyframes voiceScroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }

  .voice-card {
    width: 292px;
    height: 88px;
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .04);
  }

  .voice-card:nth-child(even) { transform: translateY(12px); }

  .voice-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--star-blue), var(--nebula));
  }

  .voice-card:nth-child(3n) .voice-avatar { background: linear-gradient(135deg, var(--aurora), var(--star-blue)); }
  .voice-card:nth-child(3n+1) .voice-avatar { background: linear-gradient(135deg, var(--nebula), var(--warm-2)); }

  .voice-name { font-size: 13px; color: var(--t-2); }

  .voice-text {
    font-size: 13.5px;
    color: var(--t-1);
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
  }

  .voice-stars { font-size: 11px; color: #FFC46B; letter-spacing: 1px; }

  /* ============ CMS 资讯 ============ */
  .news-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .news-card {
    display: grid;
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 16px;
    padding: 18px;
    border-radius: var(--r-solid);
    background: var(--layer-1);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-deep);
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  }

  .news-card:hover {
    transform: translateY(-3px);
    border-color: rgba(77, 124, 254, .42);
    box-shadow: 0 22px 52px rgba(0, 0, 0, .62);
  }

  .news-thumb {
    aspect-ratio: 4 / 3;
    border-radius: 12px;
    overflow: hidden;
    background: var(--layer-2);
    border: 1px solid var(--line);
  }

  .news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
  .news-card:hover .news-thumb img { transform: scale(1.05); }

  .news-title {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    margin: 10px 0 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-summary {
    font-size: 13.5px;
    color: var(--t-2);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    font-size: 12.5px;
    color: var(--t-3);
  }

  .news-go {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--aurora);
    font-weight: 600;
    transition: gap .22s ease;
  }

  .news-card:hover .news-go { gap: 9px; }

  .empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    height: 180px;
    border-radius: var(--r-solid);
    border: 1px dashed rgba(255, 255, 255, .16);
    background: rgba(255, 255, 255, .02);
    color: var(--t-2);
    font-size: 14px;
  }

  .empty-state svg { width: 30px; height: 30px; color: var(--nebula); }

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

  .faq-item {
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, .04);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color .25s ease, background-color .25s ease;
  }

  .faq-item:hover { border-color: rgba(255, 255, 255, .18); }
  .faq-item.is-open { border-color: rgba(55, 225, 208, .42); background: rgba(55, 225, 208, .05); }

  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    text-align: left;
    font-size: 15.5px;
    font-weight: 600;
  }

  .faq-icon {
    width: 26px;
    height: 26px;
    flex: 0 0 auto;
    border-radius: 50%;
    display: grid;
    place-items: center;
    border: 1px solid var(--line-strong);
    color: var(--aurora);
    font-size: 15px;
    line-height: 1;
    transition: transform .25s ease, background-color .25s ease;
  }

  .faq-item.is-open .faq-icon { transform: rotate(45deg); background: rgba(55, 225, 208, .16); }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .2s ease;
  }

  .faq-a p {
    padding: 0 20px 20px;
    font-size: 14px;
    color: var(--t-2);
  }

  /* ============ 底部 CTA ============ */
  .cta-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 30px 32px;
    border-radius: var(--r-glass);
    border: 1px solid rgba(255, 255, 255, .14);
    background:
      linear-gradient(100deg, rgba(77, 124, 254, .16), rgba(155, 107, 255, .14) 52%, rgba(55, 225, 208, .12)),
      rgba(255, 255, 255, .04);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    box-shadow: var(--shadow-glass);
  }

  .cta-bar strong { display: block; font-size: 20px; font-weight: 650; }
  .cta-bar span { font-size: 13.5px; color: var(--t-2); }

  /* ============ 页脚 ============ */
  .site-footer {
    position: relative;
    margin-top: 88px;
    background: #080D1F;
    border-top: 1px solid var(--line);
  }

  .site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(77, 124, 254, .7), rgba(55, 225, 208, .7), transparent);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding: 64px 0 40px;
  }

  .footer-col h4 {
    font-size: 14px;
    font-weight: 650;
    margin-bottom: 16px;
    color: var(--t-1);
  }

  .footer-col p { font-size: 13.5px; color: var(--t-3); line-height: 1.8; }

  .footer-links li { margin-bottom: 10px; }

  .footer-links a {
    font-size: 13.5px;
    color: var(--t-2);
    transition: color .22s ease, padding-left .22s ease;
  }

  .footer-links a:hover { color: var(--aurora); padding-left: 4px; }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding: 22px 0 34px;
    border-top: 1px solid var(--line);
    font-size: 12px;
    color: var(--t-3);
  }

  .footer-sub-form {
    display: flex;
    gap: 10px;
    margin-top: 16px;
    flex-wrap: wrap;
  }

  .footer-sub-form input {
    flex: 1 1 150px;
    min-width: 0;
    height: 42px;
    padding: 0 14px;
    border-radius: 12px;
    color: var(--t-1);
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--line-strong);
    transition: border-color .22s ease, box-shadow .22s ease, background-color .22s ease;
  }

  .footer-sub-form input::placeholder { color: var(--t-3); }

  .footer-sub-form input:focus {
    outline: none;
    border-color: rgba(55, 225, 208, .6);
    box-shadow: 0 0 0 3px rgba(55, 225, 208, .18);
    background: rgba(255, 255, 255, .08);
  }

  .footer-sub-form button {
    height: 42px;
    padding: 0 20px;
    border-radius: 999px;
    font-size: 13.5px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(120deg, var(--warm-1), var(--warm-2));
    box-shadow: 0 8px 24px rgba(255, 94, 122, .28);
    transition: transform .22s ease, box-shadow .22s ease;
  }

  .footer-sub-form button:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 30px rgba(55, 225, 208, .4), 0 10px 26px rgba(255, 94, 122, .34);
  }

  .footer-sub-form button:active { transform: translateY(1px); }

  .form-note { font-size: 12px; color: var(--t-3); margin-top: 10px; }

  /* ============ 响应式 ============ */
  @media (max-width: 1279px) {
    .nav-card { padding: 0 11px; font-size: 13.5px; }
    .nav-cards { gap: 6px; }
    .hero-inner { gap: 40px; }
  }

  @media (max-width: 1023px) {
    .nav-cards, .nav-cta { display: none; }
    .nav-toggle { display: grid; }
    .hero { padding: 56px 0 64px; }
    .hero-inner { grid-template-columns: 1fr; gap: 48px; }
    .hero-copy { max-width: 100%; }
    .hero-phone { width: 280px; }
    .section { padding: 72px 0; }
    .news-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .pick-item { grid-template-columns: 70px 160px minmax(0, 1fr) 40px; gap: 18px; }
  }

  @media (max-width: 767px) {
    .container, .container-wide { padding-left: 16px; padding-right: 16px; }
    .site-header { padding: 0 16px; top: 8px; }
    .nav-panel { height: 64px; padding: 0 14px; }
    .section { padding: 56px 0; }
    .section-tight { padding: 48px 0; }
    .sec-head { flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 28px; }
    .reel-arrow { display: none; }
    .reel-card { width: 176px; }
    .pick-item {
      grid-template-columns: 52px minmax(0, 1fr);
      grid-template-areas:
        "idx text"
        "thumb thumb";
      gap: 14px;
      padding: 20px 2px;
    }
    .pick-index { grid-area: idx; font-size: 34px; -webkit-text-stroke-width: 1.1px; }
    .pick-text { grid-area: text; }
    .pick-thumb { grid-area: thumb; }
    .pick-go { display: none; }
    .pick-item:hover { padding-left: 2px; }
    .cta-bar { flex-direction: column; align-items: flex-start; padding: 24px 20px; }
    .cta-bar .btn { width: 100%; }
    .footer-grid { grid-template-columns: 1fr 1fr; padding: 48px 0 28px; }
    .hero-stats { gap: 16px; }
    .hero-stat { padding-right: 16px; }
    .hero-stat b { font-size: 20px; }
  }

  @media (max-width: 519px) {
    body { font-size: 15px; }
    .news-card { grid-template-columns: 1fr; }
    .news-thumb { aspect-ratio: 16 / 9; }
    .hero-phone { width: 240px; }
    .reel-card { width: 150px; }
    .footer-grid { grid-template-columns: 1fr; }
    .voice-card { width: 250px; }
    .mobile-links { grid-template-columns: 1fr; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: .001ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: .001ms !important;
      scroll-behavior: auto !important;
    }
    .voice-track { animation: none; }
  }

/* roulang page: article */
:root{
  --bg:#060A18;
  --bg-2:#0C1329;
  --bg-3:#121A33;
  --primary:#4D7CFE;
  --cyan:#37E1D0;
  --violet:#9B6BFF;
  --warm-1:#FF7A45;
  --warm-2:#FF5E7A;
  --text:#E6ECFF;
  --text-2:#9AA7C7;
  --text-3:#5C6889;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.045);
  --r-lg:18px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 8px 32px rgba(0,0,0,.45);
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font);
  font-size:15.5px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1px 1px at 12% 18%,rgba(255,255,255,.05),transparent 60%),
    radial-gradient(1px 1px at 78% 32%,rgba(255,255,255,.045),transparent 60%),
    radial-gradient(1px 1px at 44% 72%,rgba(255,255,255,.04),transparent 60%),
    radial-gradient(600px 420px at 88% -6%,rgba(155,107,255,.16),transparent 70%),
    radial-gradient(760px 520px at 6% 8%,rgba(55,225,208,.08),transparent 72%);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease;}
button,input,textarea{font:inherit;color:inherit;}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-variant-numeric:tabular-nums;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:12px 0;
  transition:background-color .28s ease,box-shadow .28s ease,backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(6,10,24,.86);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 12px 36px rgba(0,0,0,.5);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:16px;
  height:72px;
  padding:0 20px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(18px) saturate(140%);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  letter-spacing:-.01em;
  color:#fff;
  flex:none;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 22px rgba(77,124,254,.45);
}
.brand-mark svg{width:19px;height:19px;}
.brand:hover .brand-mark{box-shadow:0 0 30px rgba(55,225,208,.5);}
.nav-cards{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  justify-content:center;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-cards::-webkit-scrollbar{display:none;}
.nav-card{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-sm);
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease;
}
.nav-card svg{width:18px;height:18px;flex:none;}
.nav-card:hover{background:rgba(255,255,255,.07);color:var(--text);}
.nav-card:active{background:rgba(77,124,254,.2);}
.nav-card.is-active{
  background:rgba(77,124,254,.16);
  color:#fff;
  box-shadow:inset 0 -2px 0 var(--cyan);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border:0;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .28s ease,background-color .22s ease,border-color .22s ease;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--warm-1),var(--warm-2));
  box-shadow:0 10px 30px rgba(255,94,122,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(255,122,69,.45);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(255,94,122,.3);}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-2);
}
.btn-ghost:hover{background:rgba(255,255,255,.10);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.nav-cta{flex:none;height:42px;padding:0 20px;}
.nav-toggle{
  display:none;
  position:relative;
  width:44px;height:44px;
  flex:none;
  border-radius:var(--r-sm);
  border:1px solid var(--line-2);
  background:rgba(255,255,255,.05);
  cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:50%;
  width:18px;height:2px;
  border-radius:2px;
  background:#fff;
  transform:translateX(-50%);
  transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-open .nav-toggle span{background:transparent;}
.nav-open .nav-toggle span::before{transform:translateX(-50%) translateY(6px) rotate(45deg);}
.nav-open .nav-toggle span::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg);}

.mobile-panel{
  display:none;
  position:fixed;
  inset:0;
  z-index:70;
  padding:96px 20px 32px;
  background:rgba(6,10,24,.96);
  backdrop-filter:blur(20px) saturate(140%);
  overflow-y:auto;
}
.nav-open .mobile-panel{display:block;}
.mobile-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0 0 22px;}
.mobile-card{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:64px;
  padding:0 14px;
  border-radius:14px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  font-size:14.5px;
  color:var(--text-2);
}
.mobile-card.is-active{background:rgba(77,124,254,.18);color:#fff;border-color:rgba(77,124,254,.45);}
.mobile-card svg{width:18px;height:18px;flex:none;}

/* ===== 文章头部 ===== */
.article-hero{padding:44px 0 0;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{
  max-width:340px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--text-2);
}
.article-title{
  margin:18px 0 0;
  font-size:clamp(28px,4.4vw,50px);
  line-height:1.14;
  font-weight:700;
  letter-spacing:-.02em;
  color:#fff;
  max-width:900px;
}
.meta-bar{
  display:inline-flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:22px;
  padding:9px 18px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid rgba(255,255,255,.10);
  font-size:13px;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
}
.meta-bar .dot{width:4px;height:4px;border-radius:50%;background:var(--line-2);}
.hero-cover{
  position:relative;
  margin-top:32px;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line-2);
  box-shadow:0 18px 50px rgba(0,0,0,.5);
}
.hero-cover img{width:100%;height:clamp(180px,30vw,340px);object-fit:cover;}
.hero-cover::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,24,.15),rgba(6,10,24,.82));
}
.hero-cover figcaption{
  position:absolute;
  left:22px;bottom:18px;right:22px;
  z-index:2;
  font-size:13px;
  color:var(--text-2);
}

/* ===== 正文 ===== */
.article-main{padding:0 0 8px;}
.article-body{
  max-width:760px;
  margin:0 auto;
  padding:56px 0 0;
  font-size:16px;
  line-height:1.9;
  color:#D5DDF5;
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;
  margin:46px 0 16px;
  padding-left:16px;
  font-size:clamp(20px,2.4vw,26px);
  line-height:1.35;
  font-weight:650;
  color:#fff;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.16em;bottom:.16em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--primary));
  box-shadow:0 0 14px rgba(55,225,208,.6);
}
.article-body h3{margin:30px 0 12px;font-size:18px;font-weight:600;color:#fff;}
.article-body h4{margin:24px 0 10px;font-size:16.5px;font-weight:600;color:var(--text);}
.article-body p{margin:16px 0;}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(55,225,208,.35);}
.article-body a:hover{color:#7ff3e6;border-bottom-color:#7ff3e6;}
.article-body strong{color:#fff;}
.article-body ul{list-style:none;margin:16px 0;padding:0;}
.article-body ul li{position:relative;padding-left:20px;margin:10px 0;}
.article-body ul li::before{
  content:"";
  position:absolute;left:2px;top:.72em;
  width:6px;height:6px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(55,225,208,.7);
}
.article-body ol{list-style:decimal;margin:16px 0;padding-left:22px;}
.article-body ol li{margin:10px 0;padding-left:4px;}
.article-body ol li::marker{color:var(--cyan);font-weight:600;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  border-radius:14px;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.10);
  border-left:3px solid var(--cyan);
  color:var(--text-2);
  font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  margin:26px auto;
  border-radius:14px;
  border:1px solid var(--line);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--text-3);
}
.article-body table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  margin:24px 0;
  border-collapse:collapse;
  border:1px solid var(--line);
  border-radius:14px;
  font-size:14.5px;
  font-variant-numeric:tabular-nums;
}
.article-body th,.article-body td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  text-align:left;
  white-space:nowrap;
}
.article-body th{background:rgba(255,255,255,.04);color:#fff;font-weight:600;}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{margin:36px 0;border:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent);}

.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  min-height:200px;
  padding:36px 24px;
  border-radius:var(--r-lg);
  background:rgba(255,255,255,.035);
  border:1px dashed rgba(255,255,255,.16);
  text-align:center;
}
.empty-state svg{width:38px;height:38px;color:var(--cyan);}
.empty-state p{margin:0;color:var(--text-2);font-size:15px;}
.empty-state a{color:var(--cyan);font-size:14.5px;border-bottom:1px solid rgba(55,225,208,.4);}

/* ===== 标签与返回 ===== */
.post-foot{
  max-width:760px;
  margin:0 auto;
  padding:36px 0 0;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-row .label{font-size:13px;color:var(--text-3);margin-right:2px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--cyan);
  background:rgba(55,225,208,.10);
  border:1px solid rgba(55,225,208,.28);
}
.tag:hover{background:rgba(55,225,208,.2);color:#8ff6ea;}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:22px;
  font-size:14.5px;
  color:var(--text-2);
}
.back-link:hover{color:var(--cyan);}
.back-link::before{content:"←";font-size:15px;}

/* ===== 板块通用 ===== */
.section{padding:72px 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
}
.section-head h2{
  font-size:clamp(22px,2.8vw,30px);
  line-height:1.3;
  color:#fff;
}
.section-head p{margin:8px 0 0;font-size:14px;color:var(--text-2);}
.text-link{
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
}
.text-link:hover{color:var(--cyan);border-bottom:1px solid var(--cyan);}

/* ===== 相关推荐 ===== */
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.related-card{
  display:flex;
  gap:14px;
  padding:14px;
  border-radius:var(--r-md);
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:0 8px 26px rgba(0,0,0,.35);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.related-card:hover{
  transform:translateY(-2px);
  border-color:rgba(255,255,255,.20);
  box-shadow:0 14px 38px rgba(0,0,0,.5);
}
.related-card img{
  width:104px;
  height:78px;
  flex:none;
  object-fit:cover;
  border-radius:var(--r-sm);
}
.related-card .rc-body{min-width:0;}
.related-card .rc-tag{
  display:inline-block;
  margin-bottom:6px;
  font-size:12px;
  color:var(--cyan);
}
.related-card h3{
  font-size:15px;
  line-height:1.5;
  font-weight:600;
  color:#fff;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card .rc-more{
  display:inline-block;
  margin-top:8px;
  font-size:13px;
  color:var(--text-2);
}
.related-card:hover .rc-more{color:var(--cyan);}

/* ===== 口碑条 ===== */
.review-strip{
  position:relative;
  overflow:hidden;
  padding:8px 0 4px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
}
.review-track{
  display:flex;
  gap:16px;
  width:max-content;
  animation:reviewScroll 46s linear infinite;
}
.review-strip:hover .review-track{animation-play-state:paused;}
@keyframes reviewScroll{
  from{transform:translateX(0);}
  to{transform:translateX(-50%);}
}
.review-card{
  display:flex;
  align-items:center;
  gap:12px;
  width:320px;
  height:88px;
  flex:none;
  padding:0 18px;
  border-radius:14px;
  background:var(--glass);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.review-card .avatar{
  width:38px;height:38px;flex:none;
  border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 18px rgba(77,124,254,.4);
}
.review-card .rc-name{font-size:13px;color:var(--text-2);}
.review-card .rc-text{font-size:14px;color:var(--text);line-height:1.5;}
.review-card .stars{font-size:12px;color:var(--warm-1);letter-spacing:2px;}
.review-card:nth-child(even){transform:translateY(12px);}

/* ===== CTA ===== */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  flex-wrap:wrap;
  margin:0 auto;
  padding:28px 30px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(77,124,254,.18),rgba(155,107,255,.14));
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(18px) saturate(140%);
}
.cta-band h2{font-size:clamp(19px,2.2vw,24px);color:#fff;line-height:1.4;}
.cta-band p{margin:8px 0 0;font-size:14px;color:var(--text-2);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:88px;
  background:#080D1E;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(77,124,254,.55),rgba(55,225,208,.45),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
  padding:64px 0 40px;
}
.footer-col h4{
  margin:0 0 14px;
  font-size:15px;
  font-weight:650;
  color:#fff;
}
.footer-col p{margin:0;font-size:13.5px;line-height:1.85;color:var(--text-2);}
.footer-links li{margin:9px 0;}
.footer-links a{font-size:13.5px;color:var(--text-2);}
.footer-links a:hover{color:var(--cyan);}
.footer-sub-form{display:flex;gap:8px;margin:16px 0 10px;}
.footer-sub-form input{
  flex:1;
  min-width:0;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  color:var(--text);
  font-size:14px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.footer-sub-form input::placeholder{color:var(--text-3);}
.footer-sub-form input:focus{
  outline:none;
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(55,225,208,.18);
}
.footer-sub-form button{
  height:44px;
  padding:0 20px;
  border:0;
  border-radius:var(--r-sm);
  font-size:14px;
  font-weight:600;
  color:#fff;
  cursor:pointer;
  background:linear-gradient(135deg,var(--warm-1),var(--warm-2));
  box-shadow:0 8px 22px rgba(255,94,122,.26);
  transition:transform .22s ease,box-shadow .28s ease;
}
.footer-sub-form button:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(255,122,69,.45);}
.footer-sub-form button:active{transform:translateY(1px);}
.form-note{font-size:12.5px;color:var(--text-3);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  padding:22px 0 30px;
  margin-top:6px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--text-3);
}

/* ===== 响应式 ===== */
@media (max-width:1080px){
  .nav-cards{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-block;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:1023px){
  .section{padding:64px 0 0;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  .nav-panel{height:64px;padding:0 14px;border-radius:16px;}
  .brand{font-size:17px;}
  .article-hero{padding:30px 0 0;}
  .article-body{padding-top:40px;font-size:15.5px;line-height:1.85;}
  .section{padding:56px 0 0;}
  .related-grid{grid-template-columns:1fr;}
  .review-card{width:270px;}
  .review-card:nth-child(even){transform:none;}
  .cta-band{padding:22px 20px;}
  .site-footer{margin-top:64px;}
  .footer-grid{padding:44px 0 28px;}
  .hero-cover img{height:200px;}
  .breadcrumb .current{max-width:200px;}
}
@media (max-width:520px){
  .article-title{font-size:26px;}
  .meta-bar{gap:10px;font-size:12.5px;padding:8px 14px;}
  .related-card img{width:88px;height:68px;}
  .mobile-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-sub-form{flex-direction:column;}
  .footer-sub-form button{width:100%;}
  .review-card{width:240px;height:82px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .review-track{animation:none;}
  *{transition-duration:.01ms !important;}
}

/* roulang page: category1 */
:root{
  --bg:#060A18;
  --bg-2:#0C1329;
  --bg-3:#121A33;
  --star:#4D7CFE;
  --aurora:#37E1D0;
  --nebula:#9B6BFF;
  --warm-1:#FF7A45;
  --warm-2:#FF5E7A;
  --text:#E6ECFF;
  --text-2:#9AA7C7;
  --text-3:#5C6889;
  --line:rgba(255,255,255,.08);
  --glass-border:rgba(255,255,255,.12);
  --glass-bg:rgba(255,255,255,.045);
  --r-lg:18px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 8px 32px rgba(0,0,0,.45);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:15.5px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 12% -6%, rgba(77,124,254,.10), transparent 62%),
    radial-gradient(760px 460px at 88% 4%, rgba(155,107,255,.09), transparent 60%),
    radial-gradient(700px 500px at 50% 108%, rgba(55,225,208,.06), transparent 62%);
  background-attachment:fixed;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
:focus-visible{outline:2px solid var(--aurora);outline-offset:2px;border-radius:8px}
::selection{background:rgba(77,124,254,.4)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 16px;transition:padding .25s ease}
.nav-panel{
  max-width:var(--container);margin:0 auto;height:72px;
  display:flex;align-items:center;gap:14px;padding:0 20px;
  border-radius:20px;
  background:rgba(12,19,41,.72);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled .nav-panel{background:rgba(6,10,24,.86);border-color:rgba(255,255,255,.16)}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--text);flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--star),var(--nebula));
  box-shadow:0 0 18px rgba(77,124,254,.5);
}
.brand-mark svg{width:18px;height:18px}
.nav-cards{display:none;gap:4px;margin-left:auto;align-items:center}
.nav-card{
  display:flex;align-items:center;gap:7px;height:40px;padding:0 12px;border-radius:12px;
  color:var(--text-2);font-size:13.5px;white-space:nowrap;position:relative;
  transition:color .25s ease,background .25s ease,transform .25s ease;
}
.nav-card svg{width:17px;height:17px;flex:0 0 auto}
.nav-card:hover{color:var(--text);background:rgba(255,255,255,.07);transform:translateY(-1px)}
.nav-card.is-active{color:#fff;background:rgba(77,124,254,.16)}
.nav-card.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--aurora);box-shadow:0 0 10px var(--aurora);
}
.nav-cta{flex:0 0 auto;height:42px;padding:0 20px;font-size:14px}
.nav-toggle{
  margin-left:auto;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--glass-border);background:rgba(255,255,255,.05);
  display:flex;align-items:center;justify-content:center;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span::before{position:relative;top:-6px}
.nav-toggle span::after{position:relative;top:4px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-4px) rotate(-45deg)}
@media (min-width:1180px){
  .nav-cards{display:flex}
  .nav-toggle{display:none}
}
@media (max-width:479px){
  .nav-cta{display:none}
}

/* 移动端面板 */
.mobile-panel{
  position:fixed;inset:0;z-index:55;background:rgba(6,10,24,.96);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  padding:104px 20px 40px;display:none;overflow-y:auto;
}
.mobile-panel.is-open{display:block}
.mobile-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.mobile-cards .nav-card{
  height:auto;padding:16px 14px;flex-direction:column;align-items:flex-start;gap:10px;
  background:var(--glass-bg);border:1px solid var(--line);border-radius:14px;font-size:14px;
}
.mobile-cards .nav-card.is-active{background:rgba(77,124,254,.16);border-color:rgba(77,124,254,.4)}
.mobile-panel .btn{width:100%;margin-top:22px}
@media (min-width:1180px){.mobile-panel{display:none !important}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--warm-1),var(--warm-2));color:#fff;
  box-shadow:0 10px 30px rgba(255,110,105,.3);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(255,122,69,.5),0 12px 34px rgba(255,94,122,.28)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(255,110,105,.3)}
.btn-ghost{
  background:rgba(255,255,255,.05);border-color:var(--glass-border);color:var(--text);
}
.btn-ghost:hover{background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-blue{
  background:linear-gradient(135deg,var(--star),var(--nebula));color:#fff;
  box-shadow:0 10px 30px rgba(77,124,254,.35);
}
.btn-blue:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(55,225,208,.4),0 12px 30px rgba(77,124,254,.35)}
.btn-blue:active{transform:translateY(1px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--aurora);font-size:14px;font-weight:600;position:relative}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;background:var(--aurora);
  box-shadow:0 0 10px var(--aurora);transition:width .25s ease;
}
.link-arrow:hover::after{width:100%}
.link-arrow svg{width:14px;height:14px;transition:transform .25s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.08em;
  color:var(--aurora);text-transform:uppercase;font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--aurora);box-shadow:0 0 8px var(--aurora)}
.h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:650;letter-spacing:-.01em;margin-top:10px}
.h3{font-size:20px;line-height:1.4;font-weight:600}
.muted{color:var(--text-2)}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;color:var(--aurora);background:rgba(55,225,208,.1);
  border:1px solid rgba(55,225,208,.24);white-space:nowrap;
}
.tag-purple{color:#C3A8FF;background:rgba(155,107,255,.12);border-color:rgba(155,107,255,.28)}
.tag-blue{color:#9CB6FF;background:rgba(77,124,254,.14);border-color:rgba(77,124,254,.3)}
.glass{
  background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--r-lg);
  backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.glass:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.2);box-shadow:0 14px 42px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.08)}
.solid{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:0 10px 26px rgba(0,0,0,.5);transition:transform .25s ease,border-color .25s ease;
}
.solid:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.18)}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--text-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--text-3)}
.crumb a:hover{color:var(--aurora)}

/* ---------- Hero ---------- */
.hero{padding:40px 0 8px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:64px 64px;opacity:.05;
}
.hero-grid{position:relative;display:grid;gap:44px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:minmax(0,1fr) 360px;gap:56px}}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);line-height:1.12;font-weight:700;letter-spacing:-.02em;margin:16px 0 0;
}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--aurora),var(--star) 55%,var(--nebula));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;max-width:560px;color:var(--text-2);font-size:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stat-bar{
  display:flex;flex-wrap:wrap;gap:0;margin-top:34px;align-items:stretch;
}
.stat{padding-right:24px;margin-right:24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0;padding-right:0;margin-right:0}
.stat b{display:block;font-size:24px;line-height:1.2;font-weight:700;letter-spacing:-.01em}
.stat span{font-size:12.5px;color:var(--text-3)}
@media (max-width:479px){
  .stat{padding-right:16px;margin-right:16px}
  .stat b{font-size:20px}
}

.hero-phone{
  position:relative;width:100%;max-width:330px;margin:0 auto;aspect-ratio:9/16;
  border-radius:26px;overflow:hidden;border:1px solid var(--glass-border);
  box-shadow:0 0 60px rgba(155,107,255,.25),0 24px 60px rgba(0,0,0,.6);
}
.hero-phone img{width:100%;height:100%;object-fit:cover}
.hero-phone::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,24,.12) 0%,rgba(6,10,24,.05) 45%,rgba(6,10,24,.82) 100%);
}
.phone-tag{
  position:absolute;top:14px;left:14px;z-index:2;height:26px;padding:0 10px;border-radius:8px;
  display:inline-flex;align-items:center;font-size:12px;color:#fff;
  background:rgba(6,10,24,.6);border:1px solid var(--glass-border);backdrop-filter:blur(8px);
}
.play-btn{
  position:absolute;z-index:2;left:50%;top:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);
  backdrop-filter:blur(10px);transition:transform .25s ease,box-shadow .25s ease;
}
.play-btn::before{content:"";position:absolute;inset:8px;border-radius:50%;border:1px solid rgba(55,225,208,.6);box-shadow:0 0 18px rgba(55,225,208,.4)}
.play-btn svg{width:20px;height:20px;margin-left:3px;fill:#fff}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.08);box-shadow:0 0 34px rgba(55,225,208,.45)}
.phone-time{
  position:absolute;right:14px;bottom:66px;z-index:2;
  font-size:12px;padding:3px 8px;border-radius:8px;background:rgba(6,10,24,.72);
  border:1px solid var(--line);color:var(--text-2);
}
.phone-caption{position:absolute;left:16px;right:16px;bottom:16px;z-index:2}
.phone-caption strong{display:block;font-size:14.5px;font-weight:600}
.phone-caption span{font-size:12.5px;color:var(--text-2)}

/* ---------- 片段卡带 ---------- */
.reel-wrap{position:relative;margin-top:8px}
.reel{
  display:flex;gap:16px;overflow-x:auto;padding:6px 2px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.reel::-webkit-scrollbar{display:none}
.reel-item{flex:0 0 220px;scroll-snap-align:start}
@media (max-width:767px){.reel-item{flex:0 0 168px}}
@media (max-width:479px){.reel-item{flex:0 0 152px}}
.reel-item .cover{
  position:relative;aspect-ratio:9/16;border-radius:16px;overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.reel-item .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.reel-item .cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 42%,rgba(6,10,24,.9) 100%);
}
.reel-item:hover .cover{border-color:rgba(255,255,255,.22);transform:translateY(-2px);box-shadow:0 14px 36px rgba(0,0,0,.5)}
.reel-item:hover .cover img{transform:scale(1.04)}
.reel-meta{position:absolute;left:12px;right:12px;bottom:12px;z-index:2}
.reel-meta strong{display:block;font-size:13.5px;font-weight:600;line-height:1.45;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.reel-time{
  position:absolute;right:10px;top:10px;z-index:2;font-size:11.5px;padding:2px 7px;border-radius:7px;
  background:rgba(6,10,24,.72);border:1px solid var(--line);color:var(--text-2);
}
.reel-play{
  position:absolute;z-index:2;left:10px;top:10px;width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);backdrop-filter:blur(8px);
}
.reel-play svg{width:11px;height:11px;fill:#fff;margin-left:2px}
.reel-sub{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px}
.reel-sub span{font-size:12.5px;color:var(--text-3)}
.reel-nav{
  position:absolute;top:calc(50% - 30px);width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;z-index:5;
  background:rgba(12,19,41,.72);border:1px solid var(--glass-border);backdrop-filter:blur(12px);
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
}
.reel-nav svg{width:16px;height:16px;stroke:var(--text);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.reel-nav:hover{background:rgba(77,124,254,.28);transform:scale(1.06);box-shadow:0 0 26px rgba(77,124,254,.4)}
.reel-nav.prev{left:-10px}
.reel-nav.next{right:-10px}
@media (max-width:1023px){.reel-nav{display:none}}

/* ---------- 竖屏网格 ---------- */
.grid-3{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:768px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}
.channel-card{padding:14px}
.channel-cover{position:relative;aspect-ratio:9/16;border-radius:14px;overflow:hidden;background:var(--bg-3)}
.channel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.channel-card:hover .channel-cover img{transform:scale(1.04)}
.channel-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(6,10,24,.75) 100%)}
.channel-cover .tag{position:absolute;left:10px;top:10px;z-index:2}
.channel-body{padding:16px 4px 6px}
.channel-body h3{font-size:17px;font-weight:600;line-height:1.45}
.channel-body p{margin-top:8px;font-size:13.5px;color:var(--text-2);line-height:1.7}
.channel-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.channel-foot span{font-size:12.5px;color:var(--text-3)}

/* ---------- 编号清单 ---------- */
.list-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.list-item:first-child{border-top:1px solid var(--line)}
.list-item:hover{background:rgba(255,255,255,.02)}
.list-num{
  font-size:34px;font-weight:700;line-height:1;letter-spacing:-.02em;
  color:transparent;-webkit-text-stroke:1px rgba(154,167,199,.55);
  min-width:56px;
}
.list-body h3{font-size:18px;font-weight:600;line-height:1.5}
.list-body p{margin-top:8px;font-size:14px;color:var(--text-2);max-width:720px}
@media (min-width:768px){
  .list-item{grid-template-columns:auto 220px 1fr auto;gap:26px;align-items:center}
  .list-thumb{border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--bg-3)}
  .list-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
  .list-item:hover .list-thumb img{transform:scale(1.05)}
}
@media (max-width:767px){.list-thumb{display:none}}

/* ---------- 流程 ---------- */
.flow{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:768px){.flow{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.flow{grid-template-columns:repeat(4,minmax(0,1fr))}}
.flow-step{padding:22px 20px;position:relative;overflow:hidden}
.flow-step::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--aurora),transparent);
}
.flow-step b{display:block;font-size:13px;color:var(--aurora);letter-spacing:.08em}
.flow-step h3{margin-top:10px;font-size:16.5px;font-weight:600}
.flow-step p{margin-top:8px;font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03);overflow:hidden;transition:border-color .25s ease,background .25s ease}
.faq-item:hover{border-color:rgba(255,255,255,.18)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15.5px;font-weight:600;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--glass-border);color:var(--aurora);font-size:16px;line-height:1;
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(55,225,208,.12)}
.faq-item[open]{border-color:rgba(55,225,208,.32);background:rgba(55,225,208,.04)}
.faq-body{padding:0 20px 20px;color:var(--text-2);font-size:14.5px;line-height:1.8;animation:fade .2s ease}
@keyframes fade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:30px 28px;border-radius:22px;
  background:linear-gradient(120deg,rgba(77,124,254,.16),rgba(155,107,255,.12) 55%,rgba(55,225,208,.12));
  border:1px solid var(--glass-border);backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:650;line-height:1.35;letter-spacing:-.01em}
.cta-band p{margin-top:8px;font-size:14px;color:var(--text-2);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:24px;background:#080D1E;border-top:1px solid var(--line);position:relative}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(55,225,208,.6),rgba(155,107,255,.5),transparent);
}
.footer-grid{display:grid;gap:32px;padding:56px 0 32px;grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-col p{font-size:13.5px;color:var(--text-2);line-height:1.8}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:13.5px;color:var(--text-2);transition:color .25s ease}
.footer-links a:hover{color:var(--aurora)}
.footer-sub-form{display:flex;gap:8px;margin-top:16px}
.footer-sub-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);font-size:13.5px;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.footer-sub-form input::placeholder{color:var(--text-3)}
.footer-sub-form input:focus{outline:none;border-color:var(--aurora);background:rgba(255,255,255,.08);box-shadow:0 0 0 3px rgba(55,225,208,.16)}
.footer-sub-form button{
  height:44px;padding:0 18px;border-radius:12px;font-size:13.5px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--star),var(--nebula));
  transition:transform .25s ease,box-shadow .25s ease;
}
.footer-sub-form button:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(77,124,254,.5)}
.footer-sub-form button:active{transform:translateY(1px)}
.form-note{margin-top:10px;font-size:12px;color:var(--text-3)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:20px 0 34px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3);
}
@media (max-width:767px){
  .footer-col:first-child{grid-column:1 / -1}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
    --bg:#060A18;
    --bg-2:#0C1329;
    --bg-3:#121A33;
    --primary:#4D7CFE;
    --cyan:#37E1D0;
    --violet:#9B6BFF;
    --warm-1:#FF7A45;
    --warm-2:#FF5E7A;
    --text:#E6ECFF;
    --text-2:#9AA7C7;
    --text-3:#5C6889;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.14);
    --glass-bg:rgba(255,255,255,.045);
    --glass-bd:rgba(255,255,255,.12);
    --radius-xl:20px;
    --radius-lg:18px;
    --radius-md:16px;
    --radius-sm:12px;
    --shadow-solid:0 14px 40px rgba(0,0,0,.5);
    --shadow-glass:0 8px 32px rgba(0,0,0,.45);
    --max:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:15.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background:
      radial-gradient(760px 520px at 12% 6%, rgba(77,124,254,.10), transparent 62%),
      radial-gradient(620px 460px at 92% 18%, rgba(155,107,255,.09), transparent 60%),
      radial-gradient(520px 380px at 50% 96%, rgba(55,225,208,.05), transparent 64%);
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  button{font:inherit;color:inherit;}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
  .container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;position:relative;z-index:1;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:999px;
    font-size:15px;font-weight:600;letter-spacing:0;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(120deg,var(--warm-1),var(--warm-2));
    color:#190712;
    box-shadow:0 10px 30px rgba(255,94,122,.32);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 38px rgba(255,94,122,.42),0 0 34px rgba(255,122,69,.34);}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(255,94,122,.3);}
  .btn-ghost{
    background:rgba(255,255,255,.05);
    border-color:var(--glass-bd);
    color:var(--text);
    backdrop-filter:blur(14px) saturate(140%);
  }
  .btn-ghost:hover{background:rgba(255,255,255,.11);transform:translateY(-2px);border-color:rgba(255,255,255,.22);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
  .link-more{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--cyan);
    position:relative;transition:color .2s ease;
  }
  .link-more::after{content:"";position:absolute;left:0;bottom:-4px;height:1px;width:0;background:var(--cyan);transition:width .24s ease;}
  .link-more:hover::after{width:100%;}
  .link-more:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px;}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    padding:12px 16px;
    background:linear-gradient(180deg,rgba(6,10,24,.94) 20%,rgba(6,10,24,.62) 78%,rgba(6,10,24,0));
    transition:background .3s ease;
  }
  .nav-panel{
    max-width:var(--max);margin:0 auto;
    display:flex;align-items:center;gap:16px;
    height:72px;padding:0 18px;
    border-radius:var(--radius-lg);
    border:1px solid var(--glass-bd);
    background:rgba(12,19,41,.7);
    backdrop-filter:blur(18px) saturate(140%);
    box-shadow:var(--shadow-glass);
    position:relative;
  }
  .site-header.is-scrolled .nav-panel{background:rgba(6,10,24,.92);box-shadow:0 14px 44px rgba(0,0,0,.55);}
  .brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.01em;flex-shrink:0;}
  .brand-mark{
    width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
    background:linear-gradient(140deg,var(--primary),var(--violet));
    box-shadow:0 0 18px rgba(77,124,254,.45);
  }
  .brand-mark svg{width:19px;height:19px;}
  .brand:focus-visible{outline:2px solid var(--cyan);outline-offset:4px;border-radius:8px;}
  .nav-cards{display:flex;align-items:center;gap:6px;flex:1;overflow-x:auto;scrollbar-width:none;}
  .nav-cards::-webkit-scrollbar{display:none;}
  .nav-card{
    display:flex;align-items:center;gap:8px;height:40px;padding:0 13px;border-radius:var(--radius-sm);
    font-size:14px;color:var(--text-2);white-space:nowrap;
    border:1px solid transparent;
    transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .nav-card svg{width:18px;height:18px;flex-shrink:0;}
  .nav-card:hover{background:rgba(255,255,255,.06);color:var(--text);}
  .nav-card:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
  .nav-card.is-active{
    background:rgba(77,124,254,.16);
    color:#fff;
    border-color:rgba(77,124,254,.42);
    box-shadow:inset 0 -2px 0 var(--cyan),0 0 20px rgba(55,225,208,.24);
  }
  .nav-cta{height:42px;padding:0 20px;font-size:14px;flex-shrink:0;}
  .nav-toggle{
    display:none;width:44px;height:44px;flex-shrink:0;position:relative;
    border-radius:var(--radius-sm);border:1px solid var(--glass-bd);
    background:rgba(255,255,255,.05);cursor:pointer;
  }
  .nav-toggle span,
  .nav-toggle span::before,
  .nav-toggle span::after{
    position:absolute;left:50%;width:18px;height:1.6px;background:var(--text);border-radius:2px;
    transform:translateX(-50%);transition:transform .24s ease,opacity .2s ease;
  }
  .nav-toggle span{top:50%;margin-top:-1px;}
  .nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
  .nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
  body.nav-open .nav-toggle span{background:transparent;}
  body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg);}
  body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg);}
  .nav-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

  /* ---------- 内页 Banner ---------- */
  .page-hero{
    position:relative;
    padding:56px 0 72px;
    background-image:linear-gradient(180deg,rgba(6,10,24,.86),rgba(6,10,24,.96)),url("/assets/images/backpic/back-2.webp");
    background-size:cover;
    background-position:center;
    overflow:hidden;
  }
  .page-hero::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(55,225,208,.5),rgba(155,107,255,.4),transparent);
  }
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
  .crumbs a{color:var(--text-2);transition:color .2s ease;}
  .crumbs a:hover{color:var(--cyan);}
  .crumbs span.sep{color:var(--text-3);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:18px;
    border-radius:999px;font-size:12.5px;letter-spacing:.06em;
    color:var(--cyan);background:rgba(55,225,208,.09);border:1px solid rgba(55,225,208,.28);
  }
  .hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center;}
  .hero-copy{max-width:600px;}
  h1{
    font-size:clamp(30px,4.6vw,50px);
    line-height:1.12;
    font-weight:700;
    letter-spacing:-.02em;
    margin-bottom:18px;
  }
  .hl{background:linear-gradient(100deg,var(--cyan),var(--primary) 55%,var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent;}
  .hero-sub{font-size:17px;color:var(--text);font-weight:500;margin-bottom:14px;line-height:1.7;}
  .hero-text{font-size:15px;color:var(--text-2);margin-bottom:28px;max-width:540px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
  .stat-bar{display:flex;flex-wrap:wrap;align-items:center;gap:0;}
  .stat-item{padding-right:26px;margin-right:26px;border-right:1px solid var(--line);}
  .stat-item:last-child{border-right:none;margin-right:0;padding-right:0;}
  .stat-item b{display:block;font-size:24px;font-weight:700;color:#fff;line-height:1.25;}
  .stat-item span{font-size:12.5px;color:var(--text-3);}
  .hero-media{
    position:relative;border-radius:var(--radius-xl);overflow:hidden;
    border:1px solid var(--glass-bd);
    box-shadow:0 0 60px rgba(155,107,255,.25),var(--shadow-solid);
    aspect-ratio:16/10;
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;}
  .hero-media .media-tag{
    position:absolute;left:16px;top:16px;height:28px;padding:0 12px;border-radius:8px;
    display:inline-flex;align-items:center;font-size:12.5px;
    background:rgba(6,10,24,.72);border:1px solid rgba(55,225,208,.35);color:var(--cyan);
    backdrop-filter:blur(10px);
  }
  .hero-media .media-caption{
    position:absolute;left:0;right:0;bottom:0;padding:44px 20px 18px;
    background:linear-gradient(180deg,transparent,rgba(6,10,24,.92));
    font-size:13.5px;color:var(--text-2);
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;position:relative;}
  .section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:680px;margin-bottom:44px;}
  .section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:650;letter-spacing:-.01em;margin-bottom:14px;}
  .section-head p{color:var(--text-2);font-size:15px;}
  .section-head.between{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
  .section-head.between .txt{max-width:680px;}

  /* ---------- 双栏锚点布局 ---------- */
  .split{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start;}
  .rail{position:sticky;top:104px;}
  .rail-title{
    font-size:12.5px;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase;
    padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:14px;
  }
  .rail-list{display:flex;flex-direction:column;gap:2px;}
  .rail-link{
    display:flex;align-items:center;gap:10px;
    padding:10px 12px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
    font-size:14px;color:var(--text-2);
    border-left:2px solid transparent;
    transition:color .2s ease,background .2s ease,border-color .2s ease;
  }
  .rail-link .idx{font-size:12px;color:var(--text-3);}
  .rail-link:hover{color:var(--text);background:rgba(255,255,255,.045);}
  .rail-link.is-current{
    color:#fff;background:rgba(77,124,254,.14);
    border-left-color:var(--cyan);
    box-shadow:-1px 0 16px rgba(55,225,208,.4);
  }
  .rail-link.is-current .idx{color:var(--cyan);}
  .rail-link:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
  .rail-note{
    margin-top:22px;padding:16px;border-radius:var(--radius-md);
    background:var(--bg-3);border:1px solid var(--line);
    font-size:13px;color:var(--text-2);
  }
  .rail-note strong{display:block;color:#fff;font-size:14px;margin-bottom:6px;}

  .row-list{display:flex;flex-direction:column;}
  .row-item{
    display:grid;grid-template-columns:56px 190px minmax(0,1fr) 40px;
    gap:24px;align-items:center;
    padding:26px 0;
    border-top:1px solid var(--line);
    transition:background .24s ease;
    scroll-margin-top:110px;
  }
  .row-item:last-child{border-bottom:1px solid var(--line);}
  .row-item:hover{background:linear-gradient(90deg,rgba(77,124,254,.07),transparent 70%);}
  .row-no{
    font-size:30px;font-weight:700;line-height:1;
    color:transparent;-webkit-text-stroke:1px rgba(155,107,255,.75);
    letter-spacing:.01em;
  }
  .row-thumb{
    border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);
    aspect-ratio:16/9;background:var(--bg-3);
  }
  .row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
  .row-item:hover .row-thumb img{transform:scale(1.04);}
  .row-body h3{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:8px;}
  .row-body p{color:var(--text-2);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px;}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;}
  .tag{
    display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:8px;
    font-size:12.5px;color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line);
  }
  .tag-cyan{color:var(--cyan);background:rgba(55,225,208,.08);border-color:rgba(55,225,208,.26);}
  .row-arrow{
    width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
    border:1px solid var(--glass-bd);background:rgba(255,255,255,.04);
    transition:transform .22s ease,border-color .22s ease,background .22s ease;
  }
  .row-arrow svg{width:16px;height:16px;stroke:var(--text-2);}
  .row-arrow:hover{transform:translateX(3px);border-color:rgba(55,225,208,.5);background:rgba(55,225,208,.1);}
  .row-arrow:hover svg{stroke:var(--cyan);}
  .row-arrow:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

  /* ---------- 横排步骤参数条 ---------- */
  .flow-bar{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
    border-radius:var(--radius-lg);overflow:hidden;
    border:1px solid var(--line);
    background:var(--bg-2);
  }
  .flow-cell{padding:26px 22px;border-right:1px solid var(--line);position:relative;}
  .flow-cell:last-child{border-right:none;}
  .flow-cell::before{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:linear-gradient(90deg,var(--cyan),var(--primary));transition:width .3s ease;}
  .flow-cell:hover::before{width:100%;}
  .flow-cell .step{font-size:12.5px;color:var(--cyan);letter-spacing:.1em;}
  .flow-cell h3{font-size:17px;font-weight:600;margin:8px 0 8px;}
  .flow-cell p{font-size:13.5px;color:var(--text-2);}

  /* ---------- 适用场景 ---------- */
  .scene-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:40px;align-items:start;}
  .scene-lead{
    padding:30px;border-radius:var(--radius-lg);
    background:var(--bg-3);border:1px solid var(--line);
  }
  .scene-lead h3{font-size:21px;font-weight:650;margin-bottom:12px;}
  .scene-lead p{color:var(--text-2);font-size:14.5px;margin-bottom:18px;}
  .scene-lead img{border-radius:var(--radius-sm);border:1px solid var(--line);aspect-ratio:16/9;object-fit:cover;width:100%;}
  .scene-list{display:flex;flex-direction:column;gap:2px;}
  .scene-item{
    display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;
    padding:18px 0;border-bottom:1px dashed var(--line);
  }
  .scene-item:first-child{border-top:1px dashed var(--line);}
  .scene-item .ic{
    width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
    background:rgba(77,124,254,.13);border:1px solid rgba(77,124,254,.3);
  }
  .scene-item .ic svg{width:20px;height:20px;stroke:var(--cyan);}
  .scene-item h4{font-size:16px;font-weight:600;margin-bottom:4px;}
  .scene-item p{font-size:14px;color:var(--text-2);}

  /* ---------- 数据快照 ---------- */
  .snap-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
  .snap-card{
    padding:24px;border-radius:var(--radius-md);
    background:linear-gradient(160deg,rgba(18,26,51,.95),rgba(12,19,41,.95));
    border:1px solid var(--line);box-shadow:var(--shadow-solid);
    transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  }
  .snap-card:hover{transform:translateY(-3px);border-color:rgba(55,225,208,.35);box-shadow:0 18px 46px rgba(0,0,0,.55);}
  .snap-card .k{font-size:28px;font-weight:700;color:#fff;line-height:1.2;}
  .snap-card .k em{font-size:14px;font-style:normal;color:var(--cyan);margin-left:4px;}
  .snap-card .t{font-size:14px;color:var(--text-2);margin-top:8px;}
  .snap-note{margin-top:20px;font-size:13px;color:var(--text-3);}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:880px;margin:0 auto;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:first-child{border-top:1px solid var(--line);}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 4px;font-size:16px;font-weight:600;
    transition:color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--cyan);}
  .faq-item summary:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
  .faq-icon{
    width:28px;height:28px;flex-shrink:0;border-radius:50%;position:relative;
    border:1px solid var(--glass-bd);background:rgba(255,255,255,.045);
    transition:transform .24s ease,border-color .24s ease;
  }
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--cyan);border-radius:2px;transform:translate(-50%,-50%);}
  .faq-icon::before{width:12px;height:1.6px;}
  .faq-icon::after{width:1.6px;height:12px;transition:opacity .2s ease;}
  .faq-item[open] .faq-icon{transform:rotate(180deg);border-color:rgba(55,225,208,.45);}
  .faq-item[open] .faq-icon::after{opacity:0;}
  .faq-body{padding:0 44px 24px 4px;color:var(--text-2);font-size:14.5px;animation:faqIn .2s ease;}
  @keyframes faqIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

  /* ---------- CTA ---------- */
  .cta-band{
    border-radius:var(--radius-xl);
    padding:36px 40px;
    display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
    background:rgba(255,255,255,.045);
    border:1px solid var(--glass-bd);
    backdrop-filter:blur(18px) saturate(140%);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-glass);
  }
  .cta-band h3{font-size:clamp(20px,2.4vw,26px);font-weight:650;margin-bottom:8px;}
  .cta-band p{color:var(--text-2);font-size:14.5px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:#04070F;
    border-top:1px solid transparent;
    background-image:linear-gradient(#04070F,#04070F),linear-gradient(90deg,transparent,rgba(55,225,208,.45),rgba(155,107,255,.4),transparent);
    background-origin:border-box;
    background-clip:padding-box,border-box;
    padding:64px 0 28px;
    position:relative;
    z-index:1;
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
  .footer-col h4{font-size:15px;font-weight:650;margin-bottom:16px;color:#fff;}
  .footer-col p{font-size:13.5px;color:var(--text-2);}
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{font-size:13.5px;color:var(--text-2);transition:color .2s ease;}
  .footer-links a:hover{color:var(--cyan);}
  .footer-links a:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px;}
  .footer-sub-form{display:flex;gap:8px;margin-top:18px;}
  .footer-sub-form input{
    flex:1;min-width:0;height:42px;padding:0 14px;border-radius:var(--radius-sm);
    background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
    color:var(--text);font-size:13.5px;outline:none;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .footer-sub-form input::placeholder{color:var(--text-3);}
  .footer-sub-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(55,225,208,.16);}
  .footer-sub-form button{
    height:42px;padding:0 18px;border-radius:var(--radius-sm);border:none;cursor:pointer;
    background:linear-gradient(120deg,var(--warm-1),var(--warm-2));color:#190712;font-weight:600;font-size:13.5px;
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .footer-sub-form button:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,94,122,.35);}
  .footer-sub-form button:active{transform:translateY(1px);}
  .footer-sub-form button:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
  .form-note{font-size:12px;color:var(--text-3);margin-top:10px;}
  .footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:12px;color:var(--text-3);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .hero-grid{gap:40px;}
  }
  @media (max-width:1023px){
    .nav-toggle{display:block;}
    .nav-cta{display:none;}
    .nav-cards{
      position:fixed;left:16px;right:16px;top:96px;z-index:90;
      display:none;flex-direction:column;align-items:stretch;gap:8px;
      padding:18px;border-radius:var(--radius-lg);
      background:rgba(6,10,24,.96);
      border:1px solid var(--glass-bd);
      box-shadow:var(--shadow-solid);
      max-height:calc(100vh - 130px);overflow-y:auto;
    }
    body.nav-open .nav-cards{display:flex;animation:menuIn .2s ease;}
    @keyframes menuIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:none;}}
    .nav-card{height:46px;font-size:15px;}
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .hero-copy{max-width:none;}
    .split{grid-template-columns:1fr;gap:24px;}
    .rail{position:static;}
    .rail-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scrollbar-width:none;}
    .rail-list::-webkit-scrollbar{display:none;}
    .rail-link{
      border-left:none;border-radius:999px;border:1px solid var(--line);
      background:rgba(255,255,255,.04);white-space:nowrap;padding:8px 14px;
    }
    .rail-link.is-current{border-color:rgba(55,225,208,.45);box-shadow:0 0 16px rgba(55,225,208,.2);}
    .rail-note{display:none;}
    .scene-grid{grid-template-columns:1fr;gap:28px;}
    .flow-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
    .flow-cell:nth-child(2){border-right:none;}
    .flow-cell:nth-child(1),.flow-cell:nth-child(2){border-bottom:1px solid var(--line);}
    .snap-grid{grid-template-columns:1fr 1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:767px){
    body{font-size:15px;}
    .container{padding:0 16px;}
    .site-header{padding:10px 12px;}
    .nav-panel{height:64px;padding:0 14px;}
    .nav-cards{left:12px;right:12px;top:84px;}
    .page-hero{padding:40px 0 52px;}
    .section{padding:56px 0;}
    .section-head{margin-bottom:28px;}
    .stat-item{padding-right:18px;margin-right:18px;}
    .stat-item b{font-size:20px;}
    .row-item{grid-template-columns:40px minmax(0,1fr);gap:14px;padding:22px 0;}
    .row-thumb{grid-column:1 / -1;order:-1;}
    .row-arrow{display:none;}
    .row-no{font-size:24px;}
    .flow-bar{grid-template-columns:1fr;}
    .flow-cell{border-right:none;border-bottom:1px solid var(--line);padding:20px 18px;}
    .flow-cell:last-child{border-bottom:none;}
    .snap-grid{grid-template-columns:1fr;}
    .cta-band{padding:26px 22px;flex-direction:column;align-items:flex-start;}
    .hero-media{aspect-ratio:4/3;}
    .faq-body{padding-right:8px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;gap:8px;}
  }
  @media (max-width:479px){
    h1{font-size:28px;}
    .hero-actions .btn{width:100%;}
    .stat-bar{gap:14px;}
    .stat-item{border-right:none;padding-right:0;margin-right:0;min-width:calc(50% - 7px);}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category3 */
:root{
  --bg:#060A18;
  --bg-1:#0C1329;
  --bg-2:#121A33;
  --primary:#4D7CFE;
  --cyan:#37E1D0;
  --violet:#9B6BFF;
  --orange-a:#FF7A45;
  --orange-b:#FF5E7A;
  --text:#E6ECFF;
  --text-2:#9AA7C7;
  --text-3:#5C6889;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-border:rgba(255,255,255,.12);
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:0 8px 32px rgba(0,0,0,.45);
  --shadow-deep:0 18px 44px rgba(0,0,0,.5);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body.page-category3{
  margin:0;
  padding:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(circle at 12% 6%, rgba(155,107,255,.10), transparent 42%),
    radial-gradient(circle at 88% 2%, rgba(77,124,254,.12), transparent 46%),
    radial-gradient(circle at 50% 108%, rgba(55,225,208,.06), transparent 55%),
    radial-gradient(rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:auto,auto,auto,52px 52px;
  background-attachment:fixed,fixed,fixed,fixed;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:15.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,figure,ul{margin:0}
ul{padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(77,124,254,.35);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:12px 24px 0}
.nav-panel{
  position:relative;display:flex;align-items:center;gap:14px;
  max-width:var(--container);margin:0 auto;height:72px;padding:0 20px;
  border-radius:var(--radius-lg);
  background:rgba(12,19,41,.74);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:background .3s ease,border-color .3s ease;
}
.site-header.is-scrolled .nav-panel{background:rgba(6,10,24,.9);border-color:rgba(255,255,255,.16)}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text);flex:0 0 auto;letter-spacing:.01em}
.brand-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(140deg,var(--primary),var(--violet));box-shadow:0 0 18px rgba(77,124,254,.5)}
.brand-mark svg{width:19px;height:19px}
.nav-cards{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--text-2);border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.nav-card svg{width:18px;height:18px;opacity:.85}
.nav-card:hover{background:rgba(255,255,255,.06);color:var(--text)}
.nav-card.is-active{background:rgba(77,124,254,.16);color:#fff;border-color:rgba(77,124,254,.35);box-shadow:inset 0 -2px 0 var(--cyan),0 0 18px rgba(55,225,208,.2)}
.nav-cta{margin-left:auto;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--glass-border);background:rgba(255,255,255,.05);cursor:pointer;position:relative;flex:0 0 auto}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:1.8px;background:var(--text);border-radius:2px;transform:translateX(-50%);
  transition:transform .25s ease,opacity .2s ease,background .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
body.nav-open .nav-toggle span{background:var(--cyan);transform:translateX(-50%) rotate(45deg)}
body.nav-open .nav-toggle span::before{opacity:0}
body.nav-open .nav-toggle span::after{transform:rotate(-90deg);top:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{color:#fff;background:linear-gradient(120deg,var(--primary),var(--violet));box-shadow:0 10px 30px rgba(77,124,254,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(55,225,208,.45),0 12px 34px rgba(77,124,254,.4)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(77,124,254,.35)}
.btn-buy{color:#fff;background:linear-gradient(120deg,var(--orange-a),var(--orange-b));box-shadow:0 10px 30px rgba(255,94,122,.32)}
.btn-buy:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(255,122,69,.45),0 12px 32px rgba(255,94,122,.36)}
.btn-buy:active{transform:translateY(1px)}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--glass-border)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.nav-cta.btn{height:42px;padding:0 20px;font-size:14px;background:linear-gradient(120deg,var(--orange-a),var(--orange-b));box-shadow:0 8px 22px rgba(255,94,122,.3)}
.nav-cta.btn:hover{box-shadow:0 0 32px rgba(255,122,69,.45)}

/* ============ 通用排版 ============ */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--cyan)}
.eyebrow::before{content:"";width:18px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section{padding:88px 0;position:relative}
.section-head{max-width:760px;margin-bottom:40px}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:650;letter-spacing:-.01em;margin:14px 0 12px}
.section-sub{color:var(--text-2);font-size:15.5px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:14px;font-weight:600;border-bottom:1px solid transparent;padding-bottom:2px;transition:border-color .2s ease,gap .2s ease}
.link-more:hover{border-bottom-color:var(--cyan);gap:10px}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;color:var(--cyan);background:rgba(55,225,208,.1);border:1px solid rgba(55,225,208,.26)}

/* ============ Hero ============ */
.hero{position:relative;padding:72px 0 96px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.28;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,24,.72) 0%,rgba(6,10,24,.86) 55%,var(--bg) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:64px;align-items:center}
.hero-copy{max-width:600px}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);line-height:1.12;font-weight:700;letter-spacing:-.02em;
  margin:18px 0 18px;
  background:linear-gradient(120deg,#FFFFFF 20%,#C7D5FF 70%,#9B6BFF 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:flex;flex-wrap:wrap;gap:24px;margin-top:36px}
.stat{padding-right:24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0;padding-right:0}
.stat b{display:block;font-size:24px;font-weight:700;color:#fff;line-height:1.3;font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:var(--text-3)}
.hero-media{display:flex;justify-content:center}
.portrait-card{
  position:relative;width:100%;max-width:340px;aspect-ratio:9/16;border-radius:22px;overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 0 60px rgba(155,107,255,.25),var(--shadow-deep);
}
.portrait-card img{width:100%;height:100%;object-fit:cover}
.portrait-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,24,.35),transparent 35%,rgba(6,10,24,.75))}
.tag-vertical{position:absolute;top:14px;left:14px;z-index:3;height:26px;padding:0 10px;display:inline-flex;align-items:center;border-radius:999px;font-size:12px;font-weight:600;color:#fff;background:rgba(6,10,24,.6);border:1px solid var(--glass-border)}
.tag-duration{position:absolute;right:14px;bottom:14px;z-index:3;height:26px;padding:0 10px;display:inline-flex;align-items:center;border-radius:8px;font-size:12px;font-weight:600;color:#fff;background:rgba(6,10,24,.7);font-variant-numeric:tabular-nums}
.play-btn{
  position:absolute;z-index:3;top:50%;left:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.12);backdrop-filter:blur(10px);color:#fff;cursor:pointer;
  display:grid;place-items:center;box-shadow:0 0 0 1px rgba(55,225,208,.4) inset;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
}
.play-btn svg{width:26px;height:26px;margin-left:2px}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.06);background:rgba(55,225,208,.2);box-shadow:0 0 30px rgba(55,225,208,.45),0 0 0 1px rgba(55,225,208,.6) inset}

/* ============ 对比区 ============ */
.compare-wrap{padding:34px 0 50px}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.compare-card{
  position:relative;padding:30px 28px;border-radius:var(--radius-lg);
  background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow-deep);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.compare-card.is-up{transform:translateY(-32px)}
.compare-card.is-down{transform:translateY(32px)}
.compare-card.is-up:hover{transform:translateY(-34px);border-color:rgba(255,255,255,.2);box-shadow:0 26px 54px rgba(0,0,0,.55)}
.compare-card.is-down:hover{transform:translateY(30px);border-color:rgba(255,255,255,.2);box-shadow:0 26px 54px rgba(0,0,0,.55)}
.compare-card.is-featured{
  background:linear-gradient(160deg,rgba(77,124,254,.16),rgba(155,107,255,.1)),var(--bg-1);
  border-color:rgba(77,124,254,.36);
}
.compare-card.is-featured::before{
  content:"";position:absolute;top:0;left:28px;right:28px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(55,225,208,.7),transparent);
}
.icon-sq{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(154,167,199,.1);border:1px solid rgba(154,167,199,.22);color:var(--text-2);margin-bottom:20px}
.icon-sq svg{width:24px;height:24px}
.icon-sq.is-cyan{background:rgba(55,225,208,.12);border-color:rgba(55,225,208,.3);color:var(--cyan)}
.compare-card h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px}
.compare-card .card-note{font-size:13.5px;color:var(--text-3);margin-bottom:18px}
.point-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.point-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2)}
.point-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:11px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(55,225,208,.7)}
.compare-card.is-featured .point-list li::before{background:var(--violet);box-shadow:0 0 10px rgba(155,107,255,.75)}

/* ============ 参数条 ============ */
.spec-bar{
  margin-top:96px;display:flex;gap:10px;overflow-x:auto;padding:10px;
  border-radius:var(--radius-lg);background:var(--bg-1);border:1px solid var(--line);
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.spec-bar::-webkit-scrollbar{height:6px}
.spec-bar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:99px}
.spec-item{flex:1 1 0;min-width:196px;padding:18px 20px;border-radius:14px;background:var(--bg-2);scroll-snap-align:start;border:1px solid rgba(255,255,255,.05)}
.spec-item em{display:block;font-style:normal;font-size:12.5px;color:var(--text-3);margin-bottom:8px}
.spec-item b{display:block;font-size:17px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.spec-item span{display:block;font-size:13px;color:var(--text-2);margin-top:4px}

/* ============ 素材清单 ============ */
.asset-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.asset-item{
  display:grid;grid-template-columns:92px 180px minmax(0,1fr) auto;gap:26px;align-items:center;
  padding:22px 12px;border-bottom:1px solid var(--line);
  transition:background .25s ease,padding .25s ease;
}
.asset-item:hover{background:linear-gradient(90deg,rgba(77,124,254,.1),transparent 72%);padding-left:18px}
.asset-no{
  font-size:38px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;
  color:transparent;-webkit-text-stroke:1px rgba(154,167,199,.55);
  transition:-webkit-text-stroke-color .25s ease;
}
.asset-item:hover .asset-no{-webkit-text-stroke-color:rgba(55,225,208,.95)}
.asset-thumb{width:180px;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:var(--bg-2);border:1px solid rgba(255,255,255,.06)}
.asset-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.asset-item:hover .asset-thumb img{transform:scale(1.05)}
.asset-body h3{font-size:17px;font-weight:600;margin-bottom:6px;color:var(--text)}
.asset-body p{font-size:14px;color:var(--text-2)}
.asset-arrow{color:var(--text-3);transition:transform .25s ease,color .25s ease}
.asset-arrow svg{width:20px;height:20px}
.asset-item:hover .asset-arrow{color:var(--cyan);transform:translateX(4px)}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:flowstep}
.flow-step{
  position:relative;padding:26px 22px 24px;border-radius:var(--radius);
  background:var(--bg-1);border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.flow-step::before{
  counter-increment:flowstep;content:counter(flowstep,decimal-leading-zero);
  display:block;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--cyan);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.flow-step h3{font-size:16.5px;font-weight:600;margin-bottom:8px}
.flow-step p{font-size:13.5px;color:var(--text-2)}
.flow-step:hover{transform:translateY(-4px);border-color:rgba(77,124,254,.4);background:var(--bg-2)}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq details{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius);
  padding:0 22px;transition:border-color .22s ease,background .22s ease;
}
.faq details[open]{border-color:rgba(77,124,254,.35);background:var(--bg-2)}
.faq details:hover{border-color:rgba(255,255,255,.18)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"＋";color:var(--cyan);font-size:16px;line-height:1;transition:transform .22s ease}
.faq details[open] summary::after{content:"－"}
.faq .faq-body{padding-bottom:20px;color:var(--text-2);font-size:14.5px;animation:faqIn .2s ease}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ============ 底部 CTA ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:34px 36px;border-radius:20px;
  background:rgba(255,255,255,.045);border:1px solid var(--glass-border);
  backdrop-filter:blur(18px) saturate(140%);box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:650;line-height:1.35;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:var(--text-2)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:#040714;padding:64px 0 28px;margin-top:32px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(77,124,254,.6),rgba(55,225,208,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col p{font-size:13.5px;color:var(--text-2);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--cyan);padding-left:4px}
.footer-sub-form{display:flex;gap:8px;margin-bottom:10px}
.footer-sub-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-border);color:var(--text);
  font-size:14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub-form input::placeholder{color:var(--text-3)}
.footer-sub-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(55,225,208,.18)}
.footer-sub-form button{
  height:44px;padding:0 18px;border:0;border-radius:var(--radius-sm);cursor:pointer;
  font-size:14px;font-weight:600;color:#fff;background:linear-gradient(120deg,var(--primary),var(--violet));
  transition:transform .2s ease,box-shadow .25s ease;
}
.footer-sub-form button:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(155,107,255,.45)}
.footer-sub-form button:active{transform:translateY(1px)}
.form-note{font-size:12.5px;color:var(--text-3);margin:0}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .nav-card{padding:0 10px;font-size:13px}
  .nav-card svg{display:none}
}
@media (max-width:1023px){
  .site-header{padding:10px 16px 0}
  .nav-panel{height:64px;padding:0 14px;gap:10px}
  .nav-cards{display:none}
  .nav-toggle{display:inline-flex}
  body.nav-open .nav-cards{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    padding:16px;margin:0;border-radius:var(--radius-lg);
    background:rgba(6,10,24,.95);border:1px solid var(--glass-border);
    backdrop-filter:blur(18px);box-shadow:0 24px 60px rgba(0,0,0,.65);
    justify-content:stretch;flex:none;
  }
  body.nav-open .nav-card{height:48px;justify-content:flex-start;padding:0 12px;font-size:13.5px;background:rgba(255,255,255,.04)}
  body.nav-open{overflow:hidden}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-media{order:2}
  .portrait-card{max-width:280px}
  .section{padding:72px 0}
  .compare-grid{gap:24px}
  .compare-card.is-up,.compare-card.is-down{transform:none}
  .compare-card.is-up:hover,.compare-card.is-down:hover{transform:translateY(-4px)}
  .spec-bar{margin-top:36px}
  .flow{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero{padding:48px 0 64px}
  .hero-sub{font-size:15.5px}
  .btn{height:46px;padding:0 22px;font-size:14.5px}
  .nav-cta.btn{height:38px;padding:0 14px;font-size:13px}
  .hero-stats{gap:16px;margin-top:28px}
  .stat{padding-right:16px}
  .stat b{font-size:20px}
  .asset-item{grid-template-columns:56px minmax(0,1fr);gap:16px;padding:18px 8px}
  .asset-thumb{display:none}
  .asset-arrow{display:none}
  .asset-no{font-size:28px}
  .cta-band{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .portrait-card{max-width:240px}
  .flow{grid-template-columns:1fr}
  .compare-card{padding:24px 20px}
  .spec-item{min-width:170px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}

/* roulang page: category4 */
:root{
  --bg:#060A18;
  --bg-2:#0C1329;
  --bg-3:#121A33;
  --primary:#4D7CFE;
  --cyan:#37E1D0;
  --purple:#9B6BFF;
  --orange-1:#FF7A45;
  --orange-2:#FF5E7A;
  --text:#E6ECFF;
  --text-2:#9AA7C7;
  --text-3:#5C6889;
  --line:rgba(255,255,255,.08);
  --glass-bg:rgba(255,255,255,.045);
  --glass-border:rgba(255,255,255,.12);
  --radius-lg:18px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 8px 32px rgba(0,0,0,.45);
  --shadow-solid:0 14px 40px rgba(0,0,0,.55);
  --focus:0 0 0 2px var(--bg),0 0 0 4px var(--cyan);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:15.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 16% 10%,rgba(77,124,254,.08),transparent 42%),
    radial-gradient(circle at 84% 6%,rgba(155,107,255,.07),transparent 40%),
    radial-gradient(circle at 58% 80%,rgba(55,225,208,.05),transparent 46%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:650;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{color:var(--text-2);}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:8px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.section{padding:88px 0;position:relative;z-index:1;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-sub{margin-top:14px;font-size:15.5px;color:var(--text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;color:var(--cyan);
  padding:5px 12px;border-radius:999px;
  border:1px solid rgba(55,225,208,.28);
  background:rgba(55,225,208,.08);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(55,225,208,.9);}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 导航 ============ */
.site-header{position:sticky;top:12px;z-index:60;padding:0 16px;}
.nav-panel{
  max-width:1200px;margin:0 auto;height:72px;
  display:flex;align-items:center;gap:14px;
  padding:0 20px;border-radius:var(--radius-lg);
  background:rgba(12,19,41,.68);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 8px 32px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.06);
  transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.is-scrolled .nav-panel{
  background:rgba(6,10,24,.88);
  border-color:rgba(255,255,255,.16);
  box-shadow:0 12px 40px rgba(0,0,0,.6),inset 0 1px 0 rgba(255,255,255,.07);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--purple));
  box-shadow:0 0 18px rgba(77,124,254,.5);
}
.brand-mark svg{width:19px;height:19px;}
.nav-cards{display:flex;align-items:center;gap:6px;flex:1;min-width:0;}
.nav-card{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 12px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--text-2);border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
  white-space:nowrap;
}
.nav-card svg{width:18px;height:18px;flex:none;}
.nav-card:hover{background:rgba(255,255,255,.07);color:var(--text);transform:translateY(-1px);}
.nav-card.is-active{background:rgba(77,124,254,.16);color:#fff;border-color:rgba(77,124,254,.34);}
.nav-card.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--cyan);box-shadow:0 0 10px rgba(55,225,208,.9);
}
.nav-cta{margin-left:auto;flex:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  font-size:14.5px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange-1),var(--orange-2));
  color:#fff;box-shadow:0 10px 30px rgba(255,110,80,.32);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(255,122,69,.55),0 12px 34px rgba(255,94,122,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(255,110,80,.3);}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--text);
  border-color:var(--glass-border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.22);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px;}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;flex:none;margin-left:auto;
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:rgba(255,255,255,.05);cursor:pointer;
}
.nav-toggle span,.nav-toggle::before,.nav-toggle::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle::before{top:15px;}
.nav-toggle span{top:21px;}
.nav-toggle::after{top:27px;}
body.nav-open .nav-toggle::before{transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span{opacity:0;}
body.nav-open .nav-toggle::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 88px;
  background-image:
    linear-gradient(180deg,rgba(6,10,24,.78),rgba(6,10,24,.94)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.14;font-weight:700;letter-spacing:-.02em;margin-bottom:18px;}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--cyan),var(--primary));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:17px;color:var(--text-2);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:22px;max-width:560px;}
.hero-stat{padding:0 26px;border-left:1px solid var(--line);}
.hero-stat:first-child{padding-left:0;border-left:none;}
.hero-stat b{display:block;font-size:26px;font-weight:700;letter-spacing:-.01em;font-variant-numeric:tabular-nums;}
.hero-stat b span{font-size:14px;color:var(--text-3);margin-left:3px;font-weight:500;}
.hero-stat small{font-size:13px;color:var(--text-3);}
.hero-media{position:relative;}
.hero-media img{
  width:100%;border-radius:var(--radius-lg);
  border:1px solid var(--glass-border);
  box-shadow:0 0 60px rgba(155,107,255,.25),var(--shadow-card);
  aspect-ratio:4/3;object-fit:cover;
}
.hero-media .floating-tag{
  position:absolute;left:-14px;bottom:26px;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;font-size:13.5px;
  background:rgba(12,19,41,.86);border:1px solid var(--glass-border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
}
.hero-media .floating-tag i{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px rgba(55,225,208,.95);}

/* ============ 指标条 ============ */
.metric-strip{
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  background:var(--bg-2);
  box-shadow:var(--shadow-solid);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;margin-top:-56px;position:relative;z-index:5;
}
.metric{padding:26px 24px;border-left:1px solid var(--line);}
.metric:first-child{border-left:none;}
.metric b{display:block;font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.01em;color:#fff;}
.metric b span{font-size:14px;color:var(--cyan);margin-left:2px;}
.metric p{font-size:13.5px;color:var(--text-3);margin-top:4px;}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:1000px;margin:0 auto;padding:8px 0 0;}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;transform:translateX(-50%);
  background:linear-gradient(180deg,transparent,rgba(77,124,254,.55) 12%,rgba(55,225,208,.45) 82%,transparent);
}
.tl-item{position:relative;width:50%;padding:0 52px 56px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 56px 52px;}
.tl-item:last-child:nth-child(even){padding-bottom:0;}
.tl-dot{
  position:absolute;top:30px;width:14px;height:14px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);
  box-shadow:0 0 0 5px rgba(55,225,208,.12),0 0 20px rgba(55,225,208,.65);
}
.tl-item:nth-child(odd) .tl-dot{right:-7px;}
.tl-item:nth-child(even) .tl-dot{left:-7px;border-color:var(--purple);box-shadow:0 0 0 5px rgba(155,107,255,.14),0 0 20px rgba(155,107,255,.6);}
.tl-card{
  border-radius:var(--radius-lg);padding:26px 26px 24px;
  background:var(--glass-bg);border:1px solid var(--glass-border);
  backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.tl-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.20);box-shadow:0 16px 44px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.08);}
.tl-step{display:inline-block;font-size:12.5px;letter-spacing:.04em;color:var(--cyan);border:1px solid rgba(55,225,208,.3);background:rgba(55,225,208,.08);border-radius:999px;padding:3px 10px;margin-bottom:12px;}
.tl-item:nth-child(even) .tl-step{color:var(--purple);border-color:rgba(155,107,255,.32);background:rgba(155,107,255,.1);}
.tl-card h3{margin-bottom:8px;}
.tl-card p{font-size:14.5px;}
.tl-meta{margin-top:12px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}

/* ============ 双栏问答区 ============ */
.answer-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:center;}
.answer-figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--glass-border);box-shadow:var(--shadow-card);}
.answer-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;}
.answer-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(6,10,24,.92));
}
.answer-list li{
  display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);
}
.answer-list li:first-child{padding-top:0;}
.answer-list li:last-child{border-bottom:none;padding-bottom:0;}
.answer-list .idx{
  flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-size:13.5px;font-variant-numeric:tabular-nums;
  color:var(--cyan);background:rgba(55,225,208,.09);border:1px solid rgba(55,225,208,.26);
}
.answer-list h3{font-size:17px;margin-bottom:4px;}
.answer-list p{font-size:14.5px;}

/* ============ 交付清单 ============ */
.deliver-wrap{
  border-radius:var(--radius-lg);border:1px solid var(--glass-border);
  background:var(--bg-2);box-shadow:var(--shadow-solid);
  padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:40px;
}
.deliver-wrap h2{margin-bottom:14px;}
.deliver-wrap > div > p{font-size:15px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  font-size:13px;padding:6px 14px;border-radius:999px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.tag:hover{color:var(--cyan);border-color:rgba(55,225,208,.4);background:rgba(55,225,208,.08);}
.deliver-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--text-2);
}
.deliver-list li:first-child{padding-top:0;}
.deliver-list li:last-child{border-bottom:none;padding-bottom:0;}
.deliver-list li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:9px;border-radius:2px;
  background:linear-gradient(135deg,var(--primary),var(--cyan));
  box-shadow:0 0 10px rgba(77,124,254,.7);
}

/* ============ FAQ ============ */
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{
  border:1px solid var(--glass-border);border-radius:var(--radius-md);
  background:var(--glass-bg);margin-bottom:14px;overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.2);}
.faq-item[open]{background:rgba(255,255,255,.06);border-color:rgba(77,124,254,.4);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";flex:none;width:11px;height:11px;border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
  transform:rotate(45deg);transition:transform .2s ease;margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px;}
.faq-body{padding:0 24px 22px;font-size:14.5px;color:var(--text-2);animation:faqIn .2s ease;}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ CTA 玻璃条 ============ */
.cta-band{
  border-radius:var(--radius-lg);border:1px solid var(--glass-border);
  background:linear-gradient(120deg,rgba(77,124,254,.14),rgba(155,107,255,.10) 48%,rgba(55,225,208,.10));
  backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px;}
.cta-band p{font-size:14.5px;max-width:520px;}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.cta-form input{
  height:46px;width:238px;padding:0 18px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--glass-border);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(55,225,208,.18);background:rgba(255,255,255,.08);}
.form-note{margin-top:10px;font-size:12.5px;color:var(--text-3);width:100%;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;position:relative;z-index:1;
  background:#050813;border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(77,124,254,.7),rgba(55,225,208,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;}
.footer-col h4{font-size:15px;font-weight:650;margin-bottom:16px;}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.85;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:13.5px;color:var(--text-2);transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:var(--cyan);padding-left:3px;}
.footer-sub-form{display:flex;gap:8px;margin-top:18px;flex-wrap:wrap;}
.footer-sub-form input{
  flex:1;min-width:150px;height:42px;padding:0 14px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);font-size:13.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub-form input::placeholder{color:var(--text-3);}
.footer-sub-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(55,225,208,.16);}
.footer-sub-form button{
  height:42px;padding:0 18px;border-radius:var(--radius-sm);border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--primary),var(--purple));color:#fff;font-size:13.5px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease;
}
.footer-sub-form button:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(77,124,254,.55);}
.footer-sub-form button:active{transform:translateY(1px);}
.site-footer .form-note{margin-top:8px;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-card span{font-size:13.5px;}
  .nav-cards{gap:2px;}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-media{max-width:560px;}
  .answer-grid{grid-template-columns:1fr;gap:36px;}
  .answer-figure img{aspect-ratio:16/10;}
  .deliver-wrap{grid-template-columns:1fr;gap:32px;padding:34px;}
  .metric-strip{grid-template-columns:repeat(2,1fr);margin-top:-40px;}
  .metric:nth-child(3){border-left:none;}
  .metric:nth-child(n+3){border-top:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-cards{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    display:none;grid-template-columns:1fr 1fr;gap:8px;padding:14px;
    background:rgba(6,10,24,.95);border:1px solid var(--glass-border);
    border-radius:var(--radius-lg);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    box-shadow:0 20px 50px rgba(0,0,0,.65);
  }
  body.nav-open .nav-cards{display:grid;}
  .nav-card{height:46px;width:100%;justify-content:flex-start;background:rgba(255,255,255,.04);}
  .nav-card.is-active::after{display:none;}
  .nav-toggle{display:block;}
  .nav-cta{height:40px;padding:0 16px;font-size:13.5px;margin-left:0;}
  .nav-panel{position:relative;gap:10px;}
  .brand{font-size:16px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:64px 0 72px;}
  .hero-sub{font-size:15.5px;}
  .hero-stats{max-width:none;}
  .hero-stat{padding:0 18px;}
  .hero-stat b{font-size:22px;}
  .metric-strip{margin-top:-32px;}
  .metric{padding:20px 18px;}
  .metric b{font-size:23px;}
  .timeline::before{left:14px;transform:none;}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 36px 44px;}
  .tl-item:nth-child(odd) .tl-dot,.tl-item:nth-child(even) .tl-dot{left:7px;right:auto;}
  .tl-card{padding:22px 20px;}
  .cta-band{padding:28px 22px;}
  .cta-form{width:100%;}
  .cta-form input{width:100%;}
  .cta-form .btn{width:100%;}
  .site-footer{margin-top:56px;}
  .footer-grid{padding:44px 0 28px;}
}
@media (max-width:520px){
  .hero-stat{width:100%;padding:12px 0;border-left:none;border-top:1px solid var(--line);}
  .hero-stat:first-child{border-top:none;padding-top:0;}
  .metric-strip{grid-template-columns:1fr;}
  .metric{border-left:none;border-top:1px solid var(--line);}
  .metric:first-child{border-top:none;}
  .deliver-wrap{padding:26px 20px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-body{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .brand span:last-child{display:inline;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}