/* roulang page: index */
:root {
    --ink: #0E2E27;
    --ink-2: #17453A;
    --accent: #FF6A2B;
    --accent-deep: #E85A1E;
    --lime: #CBF25C;
    --paper: #F7F5EF;
    --surface: #FFFFFF;
    --line: rgba(14, 46, 39, .10);
    --line-strong: rgba(14, 46, 39, .18);
    --text: #16221F;
    --muted: #5E6B67;
    --radius-card: 18px;
    --radius-input: 12px;
    --radius-tag: 8px;
    --shadow-card: 0 1px 2px rgba(14, 46, 39, .05), 0 10px 24px rgba(14, 46, 39, .06);
    --shadow-hover: 0 18px 40px rgba(14, 46, 39, .12);
    --shadow-nav: 0 10px 28px rgba(14, 46, 39, .07);
  }

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

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    background-color: var(--paper);
    color: var(--text);
    font-size: 16px;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
  }

  img { display: block; max-width: 100%; height: auto; }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; }

  h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
  ul, ol { padding: 0; list-style: none; }

  .shell {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-inline: 24px;
  }

  .page-section { padding-block: 88px; }
  .page-section--tight { padding-block: 64px; }

  .entity {
    font-family: "DIN Alternate", ui-monospace, SFMono-Regular, Menlo, monospace;
    font-variant-numeric: tabular-nums;
  }

  /* ---------- 悬浮胶囊导航 ---------- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    padding: 16px 24px 0;
    transition: padding .2s ease-out;
  }

  .nav-pill {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    height: 60px;
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 10px 0 18px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, .78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow-nav);
    transition: height .2s ease-out, background-color .2s ease-out, box-shadow .2s ease-out;
  }

  .site-header.is-scrolled { padding-top: 10px; }
  .site-header.is-scrolled .nav-pill {
    height: 54px;
    background: rgba(255, 255, 255, .94);
    box-shadow: 0 14px 34px rgba(14, 46, 39, .12);
  }

  .brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .brand-mark {
    width: 34px; height: 34px;
    display: grid; place-items: center;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 100%);
    color: var(--lime);
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0;
  }
  .brand-text {
    font-weight: 700;
    font-size: 16px;
    color: var(--ink);
    letter-spacing: .01em;
    white-space: nowrap;
  }

  .nav-links { display: flex; align-items: center; gap: 2px; }
  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    font-size: 14.5px;
    color: var(--ink);
    transition: background-color .18s ease-out, color .18s ease-out;
  }
  .nav-link:hover { background: rgba(14, 46, 39, .06); }
  .nav-link.active { color: var(--ink); font-weight: 600; }
  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    transform: translateX(-50%);
    width: 18px;
    height: 3px;
    border-radius: 999px;
    background: var(--accent);
  }

  .nav-actions { display: flex; align-items: center; gap: 8px; }

  .menu-toggle {
    display: none;
    width: 42px; height: 42px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: transparent;
    color: var(--ink);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
  }
  .menu-toggle:hover { background: rgba(14, 46, 39, .06); }

  .mobile-panel {
    display: none;
    max-width: 1160px;
    margin: 10px auto 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: #FFFFFF;
    box-shadow: 0 18px 40px rgba(14, 46, 39, .14);
  }
  .mobile-panel.is-open { display: block; }
  .mobile-panel a {
    display: flex;
    align-items: center;
    min-height: 46px;
    padding: 0 14px;
    border-radius: 12px;
    font-size: 15px;
    color: var(--ink);
  }
  .mobile-panel a:hover { background: rgba(14, 46, 39, .06); }
  .mobile-panel .mobile-cta {
    justify-content: center;
    margin-top: 8px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
  }
  .mobile-panel .mobile-cta:hover { background: var(--accent-deep); }

  /* ---------- 按钮 ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 26px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .18s ease-out, background-color .18s ease-out, box-shadow .18s ease-out, color .18s ease-out, border-color .18s ease-out;
  }
  .btn-primary {
    background: var(--accent);
    color: #FFFFFF;
    box-shadow: 0 10px 22px rgba(255, 106, 43, .26);
  }
  .btn-primary:hover {
    background: var(--accent-deep);
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(255, 106, 43, .32);
  }
  .btn-ghost {
    background: transparent;
    border-color: rgba(14, 46, 39, .28);
    color: var(--ink);
  }
  .btn-ghost:hover { background: rgba(14, 46, 39, .08); transform: translateY(-2px); }
  .btn-light {
    background: #FFFFFF;
    color: var(--ink);
  }
  .btn-light:hover { background: #F0EEE6; transform: translateY(-2px); }
  .btn-sm { height: 38px; padding: 0 18px; font-size: 14px; }
  .btn-block { width: 100%; }

  a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  /* ---------- Hero ---------- */
  .hero {
    position: relative;
    margin: 28px auto 0;
    max-width: 1200px;
    border-radius: 28px;
    overflow: hidden;
    background-color: var(--ink);
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
  }
  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(112deg, rgba(14, 46, 39, .96) 0%, rgba(14, 46, 39, .90) 42%, rgba(23, 69, 58, .72) 74%, rgba(23, 69, 58, .48) 100%);
  }
  .hero::after {
    content: "";
    position: absolute;
    left: -10%;
    bottom: -30%;
    width: 120%;
    height: 70%;
    background: repeating-linear-gradient(90deg, rgba(255, 255, 255, .08) 0 1px, transparent 1px 84px);
    transform: rotate(-6deg);
    opacity: .5;
    pointer-events: none;
  }
  .hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    gap: 40px;
    align-items: center;
    padding: 64px 56px 56px;
  }
  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(203, 242, 92, .16);
    border: 1px solid rgba(203, 242, 92, .34);
    color: var(--lime);
    font-size: 13px;
    letter-spacing: .04em;
  }
  .hero-eyebrow .dot {
    width: 6px; height: 6px; border-radius: 999px; background: var(--lime);
  }
  .hero h1 {
    margin-top: 20px;
    color: #FFFFFF;
    font-size: clamp(30px, 4.2vw, 46px);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
  }
  .hero-sub {
    margin-top: 18px;
    max-width: 30em;
    color: rgba(255, 255, 255, .82);
    font-size: 17px;
    line-height: 1.8;
  }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
  .hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    margin-top: 26px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, .16);
  }
  .hero-trust li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, .78);
    font-size: 13.5px;
  }
  .hero-trust li::before {
    content: "";
    width: 5px; height: 5px;
    border-radius: 999px;
    background: var(--lime);
  }
  .hero-figure {
    position: relative;
    border-radius: 22px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .18);
    box-shadow: 0 24px 60px rgba(0, 0, 0, .3);
  }
  .hero-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
  .hero-figure figcaption {
    position: absolute;
    left: 14px; bottom: 14px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(14, 46, 39, .78);
    border: 1px solid rgba(203, 242, 92, .3);
    color: var(--lime);
    font-size: 12.5px;
    letter-spacing: .02em;
  }
  .hero-strip {
    position: relative;
    z-index: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0 56px 34px;
  }
  .hero-strip span {
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .16);
    color: rgba(255, 255, 255, .84);
    font-size: 12.5px;
  }

  /* ---------- 指标看板 ---------- */
  .kpi-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-radius: 22px;
    overflow: hidden;
    background: linear-gradient(120deg, var(--ink) 0%, var(--ink-2) 100%);
  }
  .kpi-cell {
    padding: 34px 28px;
    border-right: 1px solid rgba(255, 255, 255, .12);
  }
  .kpi-cell:last-child { border-right: 0; }
  .kpi-cell.is-accent { background: var(--accent); }
  .kpi-value {
    display: flex;
    align-items: baseline;
    gap: 6px;
    color: var(--lime);
    font-size: clamp(28px, 3.6vw, 44px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
  }
  .kpi-cell.is-accent .kpi-value { color: #FFFFFF; }
  .kpi-value small {
    font-size: 40%;
    font-weight: 600;
    letter-spacing: .02em;
  }
  .kpi-label {
    margin-top: 12px;
    color: rgba(255, 255, 255, .76);
    font-size: 13px;
    letter-spacing: .06em;
  }
  .kpi-cell.is-accent .kpi-label { color: rgba(255, 255, 255, .92); }

  /* ---------- 通用板块标题 ---------- */
  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 40px;
  }
  .eyebrow {
    display: inline-block;
    margin-bottom: 12px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .14em;
  }
  .section-title {
    font-size: clamp(23px, 3vw, 34px);
    font-weight: 700;
    line-height: 1.3;
    color: var(--ink);
    letter-spacing: -0.01em;
  }
  .section-title::after {
    content: "";
    display: block;
    width: 40px;
    height: 4px;
    margin-top: 14px;
    border-radius: 999px;
    background: var(--accent);
  }
  .section-desc {
    margin-top: 16px;
    max-width: 56ch;
    color: var(--muted);
    font-size: 15.5px;
    line-height: 1.85;
  }
  .section-more {
    flex-shrink: 0;
    color: var(--ink);
    font-size: 14.5px;
    font-weight: 600;
    border-bottom: 1px solid rgba(14, 46, 39, .3);
    padding-bottom: 2px;
    transition: color .18s ease-out, border-color .18s ease-out;
  }
  .section-more:hover { color: var(--accent); border-color: var(--accent); }

  /* ---------- 服务矩阵 ---------- */
  .matrix {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
  }
  .matrix-card {
    grid-column: span 2;
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 28px 26px 26px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: transform .22s ease-out, box-shadow .22s ease-out, border-color .22s ease-out;
  }
  .matrix-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .26s ease-out;
  }
  .matrix-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--line-strong); }
  .matrix-card:hover::before { transform: scaleX(1); }
  .matrix-card--wide { grid-column: span 3; }
  .matrix-card--deep {
    background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 100%);
    border-color: transparent;
    color: #FFFFFF;
  }
  .matrix-card--deep .matrix-title { color: #FFFFFF; }
  .matrix-card--deep .matrix-text { color: rgba(255, 255, 255, .78); }
  .matrix-card--deep .matrix-link { color: var(--lime); }
  .matrix-icon {
    width: 44px; height: 44px;
    display: grid; place-items: center;
    border-radius: 12px;
    background: rgba(203, 242, 92, .28);
    color: var(--ink);
    font-size: 19px;
    font-weight: 700;
  }
  .matrix-card--deep .matrix-icon { background: rgba(203, 242, 92, .18); color: var(--lime); }
  .matrix-title {
    margin-top: 18px;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.45;
    color: var(--ink);
  }
  .matrix-text {
    margin-top: 10px;
    color: var(--muted);
    font-size: 14.5px;
    line-height: 1.8;
  }
  .matrix-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    padding-top: 20px;
    color: var(--ink);
    font-size: 14px;
    font-weight: 600;
  }
  .matrix-link .arrow { transition: transform .2s ease-out; }
  .matrix-card:hover .matrix-link { color: var(--accent); }
  .matrix-card:hover .matrix-link .arrow { transform: translateX(3px); }

  /* ---------- 结果对比 ---------- */
  .compare-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .compare-col {
    border-radius: 20px;
    padding: 30px 28px;
    border: 1px solid var(--line);
    background: var(--surface);
  }
  .compare-col--dark {
    background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 100%);
    border-color: rgba(255, 255, 255, .14);
    color: #FFFFFF;
  }
  .compare-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
  }
  .compare-col--dark .compare-head { border-color: rgba(255, 255, 255, .16); }
  .compare-title { font-size: 18px; font-weight: 600; }
  .compare-tag {
    padding: 4px 12px;
    border-radius: var(--radius-tag);
    background: rgba(14, 46, 39, .07);
    color: var(--muted);
    font-size: 12px;
    letter-spacing: .04em;
  }
  .compare-col--dark .compare-tag {
    background: rgba(203, 242, 92, .18);
    color: var(--lime);
  }
  .compare-row {
    display: flex;
    gap: 14px;
    padding: 16px 10px;
    border-bottom: 1px solid var(--line);
    font-size: 14.5px;
    line-height: 1.75;
  }
  .compare-row:last-child { border-bottom: 0; }
  .compare-row:nth-child(odd) { background: rgba(14, 46, 39, .03); border-radius: 10px; }
  .compare-col--dark .compare-row { border-color: rgba(255, 255, 255, .12); color: rgba(255, 255, 255, .86); }
  .compare-col--dark .compare-row:nth-child(odd) { background: rgba(255, 255, 255, .05); }
  .compare-index {
    flex-shrink: 0;
    width: 22px;
    color: var(--muted);
    font-size: 12.5px;
    letter-spacing: .04em;
  }
  .compare-col--dark .compare-index { color: var(--lime); }

  /* ---------- 资讯列表 ---------- */
  .news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .news-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: transform .22s ease-out, box-shadow .22s ease-out;
  }
  .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
  .news-card--lead { grid-column: span 2; }
  .news-card--lead .news-thumb img { aspect-ratio: 16 / 7; }
  .news-thumb {
    overflow: hidden;
    border-radius: 14px;
    margin: 12px 12px 0;
    background: rgba(14, 46, 39, .06);
  }
  .news-thumb img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform .4s ease-out;
  }
  .news-card:hover .news-thumb img { transform: scale(1.04); }
  .news-body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
  .news-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
  .news-tag {
    padding: 3px 10px;
    border-radius: var(--radius-tag);
    background: rgba(255, 106, 43, .12);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
  }
  .news-time { color: var(--muted); font-size: 13px; letter-spacing: .02em; }
  .news-title {
    margin-top: 12px;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--ink);
    transition: color .18s ease-out;
  }
  .news-card:hover .news-title { color: var(--accent); }
  .news-summary {
    margin-top: 10px;
    color: var(--muted);
    font-size: 14.5px;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .news-foot {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    color: var(--ink);
    font-size: 13.5px;
    font-weight: 600;
  }
  .empty-state {
    grid-column: 1 / -1;
    display: grid;
    place-items: center;
    gap: 12px;
    padding: 56px 24px;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-card);
    background: rgba(255, 255, 255, .6);
    text-align: center;
  }
  .empty-state .empty-icon {
    width: 46px; height: 46px;
    display: grid; place-items: center;
    border-radius: 14px;
    background: rgba(14, 46, 39, .06);
    color: var(--muted);
    font-size: 20px;
  }
  .empty-state p { color: var(--muted); font-size: 14.5px; }

  /* ---------- 使用场景 ---------- */
  .scene-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .scene-card {
    padding: 24px 22px;
    border-radius: var(--radius-card);
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow-card);
    transition: transform .22s ease-out, box-shadow .22s ease-out;
  }
  .scene-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
  .scene-card h3 { font-size: 17px; font-weight: 600; color: var(--ink); line-height: 1.5; }
  .scene-card p { margin-top: 10px; color: var(--muted); font-size: 14px; line-height: 1.8; }
  .scene-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 14px;
    padding: 4px 10px;
    border-radius: var(--radius-tag);
    background: rgba(203, 242, 92, .35);
    color: var(--ink);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .02em;
  }

  /* ---------- FAQ ---------- */
  .faq-list { display: grid; gap: 14px; max-width: 900px; }
  .faq-item {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: border-color .2s ease-out, box-shadow .2s ease-out;
  }
  .faq-item[open] { border-color: rgba(255, 106, 43, .38); box-shadow: 0 14px 34px rgba(14, 46, 39, .09); }
  .faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    cursor: pointer;
    list-style: none;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-mark {
    flex-shrink: 0;
    width: 26px; height: 26px;
    display: grid; place-items: center;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    color: var(--ink);
    font-size: 14px;
    transition: transform .24s ease-out, background-color .24s ease-out, color .24s ease-out, border-color .24s ease-out;
  }
  .faq-item[open] .faq-mark {
    transform: rotate(90deg);
    background: var(--accent);
    border-color: var(--accent);
    color: #FFFFFF;
  }
  .faq-answer {
    max-width: 60ch;
    padding: 0 24px 22px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.9;
  }

  /* ---------- CTA 表单 ---------- */
  .cta-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    padding: 56px;
    border-radius: 26px;
    background: linear-gradient(135deg, var(--ink) 0%, var(--ink-2) 100%);
    color: #FFFFFF;
  }
  .cta-title { font-size: clamp(24px, 3vw, 32px); font-weight: 700; line-height: 1.35; }
  .cta-text { margin-top: 16px; color: rgba(255, 255, 255, .78); font-size: 15.5px; line-height: 1.85; }
  .trust-list { display: grid; gap: 12px; margin-top: 28px; }
  .trust-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, .84);
    font-size: 14.5px;
  }
  .trust-list li::before {
    content: "";
    width: 6px; height: 6px;
    border-radius: 999px;
    background: var(--lime);
  }
  .lead-form {
    padding: 28px;
    border-radius: 20px;
    background: #FFFFFF;
    color: var(--text);
    box-shadow: 0 20px 44px rgba(0, 0, 0, .18);
  }
  .field { margin-bottom: 16px; }
  .field label {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 14px;
  }
  .field input,
  .field select,
  .field textarea {
    width: 100%;
    height: 48px;
    padding: 0 14px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-input);
    background: #FBFAF7;
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
    transition: border-color .18s ease-out, box-shadow .18s ease-out, background-color .18s ease-out;
  }
  .field textarea { height: 96px; padding: 12px 14px; resize: vertical; line-height: 1.7; }
  .field input::placeholder,
  .field textarea::placeholder { color: #9AA5A1; }
  .field input:focus,
  .field select:focus,
  .field textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(255, 106, 43, .18);
  }
  .form-note { margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.7; }

  /* ---------- 页脚 ---------- */
  .site-footer {
    margin-top: 88px;
    background: linear-gradient(160deg, var(--ink) 0%, #0A231E 100%);
    color: rgba(255, 255, 255, .72);
    padding: 64px 0 0;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 40px;
  }
  .footer-brand { display: flex; align-items: center; gap: 10px; }
  .footer-brand .brand-mark { background: rgba(203, 242, 92, .16); }
  .footer-brand strong { color: #FFFFFF; font-size: 16.5px; }
  .footer-about { margin-top: 16px; font-size: 14px; line-height: 1.85; color: rgba(255, 255, 255, .66); max-width: 34ch; }
  .footer-col h4 {
    color: var(--lime);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .04em;
    margin-bottom: 16px;
  }
  .footer-col li { margin-bottom: 10px; }
  .footer-col a { font-size: 14px; color: rgba(255, 255, 255, .68); transition: color .18s ease-out; }
  .footer-col a:hover { color: #FFFFFF; }
  .footer-bottom {
    margin-top: 48px;
    padding: 20px 0 26px;
    border-top: 1px solid rgba(255, 255, 255, .14);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 12.5px;
    color: rgba(255, 255, 255, .55);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; padding: 48px 40px 40px; gap: 32px; }
    .hero-strip { padding: 0 40px 30px; }
    .kpi-board { grid-template-columns: repeat(2, 1fr); }
    .kpi-cell:nth-child(2) { border-right: 0; }
    .kpi-cell:nth-child(1),
    .kpi-cell:nth-child(2) { border-bottom: 1px solid rgba(255, 255, 255, .12); }
    .matrix { grid-template-columns: repeat(4, 1fr); }
    .matrix-card { grid-column: span 2; }
    .matrix-card--wide { grid-column: span 4; }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .news-card--lead { grid-column: span 2; }
    .scene-grid { grid-template-columns: repeat(2, 1fr); }
    .cta-block { grid-template-columns: 1fr; padding: 44px 36px; gap: 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  }

  @media (max-width: 768px) {
    .shell { padding-inline: 16px; }
    .page-section { padding-block: 64px; }
    .page-section--tight { padding-block: 48px; }
    .site-header { padding: 12px 12px 0; }
    .nav-links { display: none; }
    .nav-actions .btn { display: none; }
    .menu-toggle { display: inline-grid; place-items: center; }
    .nav-pill { padding: 0 8px 0 14px; }
    .hero { margin-top: 18px; border-radius: 22px; }
    .hero-inner { padding: 36px 24px 32px; }
    .hero-strip { padding: 0 24px 26px; }
    .hero h1 { font-size: clamp(26px, 7vw, 34px); }
    .hero-sub { font-size: 15.5px; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 16px; }
    .compare-wrap { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .news-card--lead { grid-column: span 1; }
    .news-card--lead .news-thumb img { aspect-ratio: 16 / 10; }
    .cta-block { padding: 32px 22px; border-radius: 22px; }
    .lead-form { padding: 22px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .site-footer { margin-top: 64px; }
  }

  @media (max-width: 520px) {
    .kpi-board { grid-template-columns: 1fr; }
    .kpi-cell { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .12); }
    .kpi-cell:last-child { border-bottom: 0; }
    .kpi-cell:nth-child(2) { border-bottom: 1px solid rgba(255, 255, 255, .12); }
    .kpi-cell:nth-child(3) { border-bottom: 1px solid rgba(255, 255, 255, .12); }
    .matrix { grid-template-columns: 1fr; }
    .matrix-card, .matrix-card--wide { grid-column: span 1; }
    .scene-grid { grid-template-columns: 1fr; }
    .btn { width: 100%; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .section-more { align-self: flex-start; }
  }

/* roulang page: article */
:root{
  --ink:#0E2E27;
  --ink-2:#17453A;
  --accent:#FF6A2B;
  --accent-dark:#E85616;
  --lime:#CBF25C;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --line:rgba(14,46,39,.10);
  --line-strong:rgba(14,46,39,.18);
  --text:#16221F;
  --muted:#5E6B67;
  --r-card:18px;
  --r-pill:999px;
  --r-input:12px;
  --shadow-card:0 1px 2px rgba(14,46,39,.05),0 10px 24px rgba(14,46,39,.06);
  --shadow-hover:0 18px 40px rgba(14,46,39,.12);
  --shell:1200px;
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:16px;z-index:90;padding:0 12px;margin-bottom:-76px}
.nav-pill{
  max-width:1160px;margin:0 auto;min-height:60px;display:flex;align-items:center;gap:18px;
  padding:8px 12px 8px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.82);border:1px solid var(--line);
  box-shadow:0 10px 28px rgba(14,46,39,.07);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:background .2s ease-out,box-shadow .2s ease-out,min-height .2s ease-out;
}
.site-header.is-scrolled .nav-pill{background:rgba(255,255,255,.96);box-shadow:0 14px 34px rgba(14,46,39,.13)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:15px;font-weight:700;line-height:1}
.brand-text{font-size:16px;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{display:inline-block;padding:8px 13px;border-radius:var(--r-pill);font-size:15px;color:var(--ink);position:relative;transition:background .18s ease,color .18s ease}
.nav-link:hover{background:rgba(14,46,39,.06)}
.nav-link.active{font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:50%;bottom:3px;width:16px;height:3px;border-radius:3px;background:var(--accent);transform:translateX(-50%)}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--ink);font-size:17px;line-height:1;cursor:pointer}
.mobile-panel{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(255,106,43,.28)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:rgba(14,46,39,.08)}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.42);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}

/* ---------- 文章首屏 ---------- */
.article-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(140deg,#0E2E27 0%,#17453A 68%,#1C5346 100%);
  padding:134px 0 66px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.15;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(203,242,92,.45),transparent);
}
.article-hero .shell{position:relative;z-index:2}
.crumbs{margin-bottom:20px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;font-size:13.5px;color:rgba(255,255,255,.7)}
.crumbs li{display:flex;align-items:center}
.crumbs li+li::before{content:"/";margin:0 10px;color:rgba(255,255,255,.32)}
.crumbs a:hover{color:var(--lime)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:8px;font-size:12.5px;font-weight:600;letter-spacing:.02em}
.tag-orange{background:rgba(255,106,43,.18);color:#FF9B6C;border:1px solid rgba(255,106,43,.32)}
.article-hero h1{
  margin-top:18px;max-width:24em;
  font-size:clamp(28px,3.6vw,42px);line-height:1.3;font-weight:700;letter-spacing:-.01em;
}
.article-meta{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.72)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.42)}

/* ---------- 正文布局 ---------- */
.article-main{padding:56px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;align-items:start}
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:24px;
  padding:44px 48px;box-shadow:var(--shadow-card);
}
.article-content{font-size:17px;line-height:1.9;color:var(--text);overflow-wrap:break-word}
.article-content > * + *{margin-top:1.15em}
.article-content h2{
  position:relative;padding-left:14px;margin-top:1.9em;
  font-size:clamp(21px,2.2vw,26px);font-weight:700;line-height:1.45;
}
.article-content h2::before{content:"";position:absolute;left:0;top:.36em;width:4px;height:1em;border-radius:2px;background:var(--accent)}
.article-content h3{font-size:19px;font-weight:600;line-height:1.5;margin-top:1.55em}
.article-content h4{font-size:17px;font-weight:600;margin-top:1.4em}
.article-content p{margin:0}
.article-content ul{padding-left:2px}
.article-content ul li{position:relative;padding-left:18px;margin-top:.55em;line-height:1.8}
.article-content ul li::before{content:"";position:absolute;left:0;top:.82em;width:6px;height:6px;border-radius:2px;background:var(--lime);box-shadow:0 0 0 1px rgba(14,46,39,.14)}
.article-content ol{list-style:decimal;padding-left:1.35em}
.article-content ol li{margin-top:.55em;line-height:1.8;padding-left:.2em}
.article-content ol li::marker{color:var(--accent);font-weight:600}
.article-content blockquote{
  margin:1.6em 0;padding:14px 20px;border-left:3px solid var(--accent);
  background:rgba(255,106,43,.06);border-radius:0 12px 12px 0;color:#2C3A36;
}
.article-content img{border-radius:16px;margin:1.6em 0;width:100%}
.article-content a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(14,46,39,.3)}
.article-content a:hover{color:var(--accent);text-decoration-color:var(--accent)}
.article-content strong{font-weight:700}
.article-content table{width:100%;border-collapse:collapse;font-size:15.5px;display:block;overflow-x:auto}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-content th{background:rgba(14,46,39,.05);font-weight:600}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-empty{text-align:center;padding:44px 0}
.article-empty h2{font-size:24px;font-weight:700}
.article-empty p{color:var(--muted);margin:12px 0 26px;font-size:16px}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-card)}
.side-card h3{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px}
.side-card h3::before{content:"";width:14px;height:3px;border-radius:2px;background:var(--accent)}
.side-links li + li{margin-top:2px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:12px;font-size:14.5px;color:var(--ink);
  transition:background .18s ease,color .18s ease;
}
.side-links a:hover{background:rgba(14,46,39,.05);color:var(--accent)}
.side-links .arrow{color:var(--muted);transition:transform .18s ease,color .18s ease}
.side-links a:hover .arrow{transform:translateX(3px);color:var(--accent)}
.side-card-dark{background:var(--ink);border-color:transparent;color:#fff}
.side-card-dark h3{color:#fff}
.side-card-dark p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.76)}
.side-card-dark .btn{margin-top:16px}

/* ---------- 板块 ---------- */
.section{padding:80px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{position:relative;padding-bottom:12px;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35}
.section-head h2::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:4px;border-radius:2px;background:var(--accent)}
.section-head p{font-size:14.5px;color:var(--muted);max-width:44ch}
.link-more{font-size:14.5px;color:var(--muted);white-space:nowrap}
.link-more:hover{color:var(--accent)}

/* ---------- 卡片 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card-media{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:rgba(14,46,39,.08)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-badge{
  position:absolute;left:12px;top:12px;display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:8px;background:rgba(14,46,39,.82);color:var(--lime);font-size:12px;font-weight:600;
}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;font-weight:600;line-height:1.5}
.card-body h3 a:hover{color:var(--accent)}
.card-desc{font-size:14.5px;line-height:1.8;color:var(--muted)}
.card-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;transition:color .2s ease}
.card-more:hover{color:var(--accent)}

/* ---------- CTA ---------- */
.cta-band{
  display:grid;grid-template-columns:1.25fr .85fr;gap:32px;align-items:center;
  background:var(--ink);color:#fff;border-radius:28px;padding:48px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(203,242,92,.22),transparent 68%);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.4;position:relative;z-index:2}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.75);max-width:46ch;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:48px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-size:17px}
.footer-brand .brand-mark{background:var(--lime);color:#123021}
.footer-about{font-size:14.5px;line-height:1.85;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:600;color:var(--lime);letter-spacing:.02em;margin-bottom:16px}
.footer-col li + li{margin-top:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:40px}
  .article-side{position:static;top:auto}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:38px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .menu-toggle{display:grid;place-items:center}
  .mobile-panel{
    position:absolute;left:12px;right:12px;top:calc(100% + 8px);
    display:none;flex-direction:column;gap:2px;padding:12px;
    background:#fff;border:1px solid var(--line);border-radius:24px;
    box-shadow:0 20px 44px rgba(14,46,39,.16);
  }
  .mobile-panel.is-open{display:flex}
  .mobile-panel a{display:flex;align-items:center;min-height:46px;padding:0 16px;border-radius:14px;color:var(--ink);font-size:15px}
  .mobile-panel a:hover{background:rgba(14,46,39,.06)}
  .mobile-panel .mobile-cta{justify-content:center;margin-top:8px;background:var(--accent);color:#fff;font-weight:600}
}
@media (max-width:768px){
  .shell{padding:0 16px}
  .article-hero{padding:118px 0 48px}
  .article-main{padding:40px 0 0}
  .article-body{padding:28px 20px;border-radius:18px}
  .article-content{font-size:16.5px;line-height:1.88}
  .section{padding:56px 0}
  .rel-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding:52px 0 24px}
}
@media (max-width:520px){
  .brand-text{font-size:14px}
  .brand-mark{width:32px;height:32px;border-radius:10px}
  .btn{padding:0 18px}
  .article-hero h1{font-size:26px}
  .cta-band{padding:28px 22px;border-radius:22px}
}

/* roulang page: category1 */
:root{
  --ink:#0E2E27;
  --ink-2:#17453A;
  --accent:#FF6A2B;
  --accent-deep:#E85412;
  --lime:#CBF25C;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --line:rgba(14,46,39,.10);
  --text:#16221F;
  --muted:#5E6B67;
  --radius-card:18px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(14,46,39,.05),0 10px 24px rgba(14,46,39,.06);
  --shadow-hover:0 18px 40px rgba(14,46,39,.12);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px;}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header ---------- */
.site-header{position:sticky;top:16px;z-index:80;padding:0 16px;}
.nav-pill{
  max-width:1160px;margin:0 auto;height:60px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.84);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(14,46,39,.08);box-shadow:0 10px 28px rgba(14,46,39,.07);
  display:flex;align-items:center;gap:20px;padding:0 14px 0 18px;
  transition:height .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.site-header.scrolled .nav-pill{height:54px;background:rgba(255,255,255,.95);box-shadow:0 14px 34px rgba(14,46,39,.13);}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--ink);white-space:nowrap;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--ink);color:var(--lime);
  display:grid;place-items:center;font-size:15px;font-weight:700;line-height:1;flex:0 0 auto;
}
.brand-text{letter-spacing:.01em;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:block;padding:8px 14px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--ink);opacity:.8;transition:background .2s ease,opacity .2s ease,color .2s ease;
}
.nav-link:hover{background:rgba(14,46,39,.06);opacity:1;color:var(--ink);}
.nav-link.active{opacity:1;font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:3px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:12px;}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:18px;line-height:1;align-items:center;justify-content:center;
}
.menu-toggle:hover{background:rgba(14,46,39,.06);}
.mobile-panel{
  display:none;max-width:1160px;margin:10px auto 0;background:#fff;border-radius:24px;padding:14px;
  box-shadow:0 18px 40px rgba(14,46,39,.14);border:1px solid var(--line);
}
.mobile-panel.open{display:block;}
.mobile-panel a{display:flex;align-items:center;min-height:44px;padding:10px 14px;border-radius:14px;font-size:15px;color:var(--ink);}
.mobile-panel a:hover{background:rgba(14,46,39,.06);}
.mobile-cta{margin-top:8px;background:var(--accent);color:#fff !important;justify-content:center;font-weight:600;}
.mobile-cta:hover{background:var(--accent-deep) !important;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,43,.26);}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,43,.32);}
.btn-ghost{border-color:rgba(14,46,39,.22);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:rgba(14,46,39,.08);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--lime);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

/* ---------- breadcrumbs ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li::after{content:"/";color:rgba(14,46,39,.25);}
.crumbs li:last-child::after{display:none;}
.crumbs a:hover{color:var(--accent);}
.crumbs .current{color:var(--ink);font-weight:600;}

/* ---------- category hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding:56px 0 84px;
  background:
    radial-gradient(110% 85% at 100% 0%, rgba(203,242,92,.24), transparent 58%),
    linear-gradient(180deg,#FCFAF5 0%, var(--paper) 100%);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.09;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(14,46,39,.16),transparent);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.04em;
  color:var(--ink);background:rgba(203,242,92,.42);border:1px solid rgba(14,46,39,.08);
  padding:5px 14px;border-radius:var(--radius-pill);margin-bottom:18px;font-weight:600;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}
h1.hero-title{
  font-size:clamp(30px,4.2vw,48px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
  color:var(--ink);margin-bottom:20px;
}
.hero-lede{font-size:17px;line-height:1.9;color:var(--muted);max-width:56ch;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags li{
  font-size:13px;color:var(--ink);background:rgba(255,255,255,.86);
  border:1px solid var(--line);border-radius:var(--radius-pill);padding:6px 14px;
}
.hero-visual{position:relative;border-radius:22px;overflow:hidden;box-shadow:0 24px 50px rgba(14,46,39,.16);}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-chip{
  position:absolute;left:18px;bottom:18px;
  background:rgba(255,255,255,.94);color:var(--ink);border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;padding:8px 16px;box-shadow:0 8px 20px rgba(14,46,39,.16);
  display:inline-flex;align-items:center;gap:8px;
}
.hero-chip::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(203,242,92,.4);}

/* ---------- sections ---------- */
.section{padding:84px 0;}
.section-tight{padding-top:64px;}
.sec-head{max-width:780px;margin-bottom:40px;}
.sec-title{
  position:relative;padding-top:18px;margin-bottom:14px;
  font-size:clamp(23px,3vw,34px);font-weight:700;line-height:1.3;color:var(--ink);
}
.sec-title::before{content:"";position:absolute;top:0;left:0;width:40px;height:4px;border-radius:2px;background:var(--accent);}
.sec-sub{color:var(--muted);font-size:16px;max-width:64ch;}

/* ---------- cards grid ---------- */
.cards{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{
  position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-card);
  transition:transform .25s ease-out,box-shadow .25s ease-out;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.card:hover::before{transform:scaleX(1);}
.card h3{font-size:20px;font-weight:600;line-height:1.45;color:var(--ink);margin-bottom:10px;}
.card p{font-size:15.5px;color:var(--muted);line-height:1.85;}
.card-media{border-radius:14px;overflow:hidden;aspect-ratio:16/10;margin-bottom:20px;background:rgba(14,46,39,.06);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.card:hover .card-media img{transform:scale(1.04);}
.card .tag{margin-bottom:14px;}
.card-arrow{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14px;font-weight:600;color:var(--ink);
}
.card-arrow span{transition:transform .25s ease-out;display:inline-block;}
.card:hover .card-arrow{color:var(--accent);}
.card:hover .card-arrow span{transform:translateX(4px);}
.span-4{grid-column:span 4;}
.span-5{grid-column:span 5;}
.span-6{grid-column:span 6;}
.span-7{grid-column:span 7;}
.span-8{grid-column:span 8;}
.span-12{grid-column:span 12;}
.card-wide{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;}
.card-wide .card-media{margin-bottom:0;aspect-ratio:16/9;}

.tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 10px;border-radius:8px;background:rgba(255,106,43,.12);color:#C9460C;
}
.tag-lime{background:rgba(203,242,92,.4);color:#3D5A0E;}
.tag-ink{background:rgba(14,46,39,.08);color:var(--ink);}

/* ---------- scenario list ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.scene{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--lime);
  border-radius:14px;padding:24px 26px;transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  box-shadow:0 1px 2px rgba(14,46,39,.04);
}
.scene:hover{border-left-color:var(--accent);transform:translateY(-3px);box-shadow:0 14px 30px rgba(14,46,39,.08);}
.scene h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px;line-height:1.5;}
.scene p{font-size:15px;color:var(--muted);}
.scene .idx{
  display:inline-block;font-size:12px;font-weight:700;color:var(--ink);
  background:rgba(203,242,92,.45);border-radius:8px;padding:2px 9px;margin-bottom:12px;letter-spacing:.06em;
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step;}
.step{
  position:relative;background:var(--ink);color:rgba(255,255,255,.82);
  border-radius:20px;padding:30px 26px;border:1px solid rgba(255,255,255,.08);
}
.step .step-no{
  display:inline-grid;place-items:center;width:36px;height:36px;border-radius:12px;
  background:var(--lime);color:var(--ink);font-weight:700;font-size:15px;margin-bottom:16px;
}
.step h3{font-size:19px;font-weight:600;color:#fff;margin-bottom:10px;}
.step p{font-size:14.8px;color:rgba(255,255,255,.7);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;margin-bottom:12px;overflow:hidden;
  transition:box-shadow .25s ease;
}
.faq-item[open]{box-shadow:0 10px 26px rgba(14,46,39,.07);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;line-height:1;color:var(--accent);
  transition:transform .25s ease-out;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:62ch;}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;background:var(--ink);border-radius:26px;
  padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
  box-shadow:0 26px 60px rgba(14,46,39,.22);
}
.cta-block::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.14;mix-blend-mode:luminosity;
}
.cta-copy{position:relative;}
.cta-copy h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;color:#fff;line-height:1.35;margin-bottom:16px;}
.cta-copy p{color:rgba(255,255,255,.72);font-size:16px;max-width:52ch;}
.trust-list{margin-top:28px;display:grid;gap:12px;}
.trust-list li{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.8);font-size:14.5px;}
.trust-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);flex:0 0 auto;}
.cta-form{position:relative;background:rgba(255,255,255,.96);border-radius:20px;padding:28px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;border:1px solid var(--line);border-radius:12px;background:#fff;
  padding:0 14px;font-size:15px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,106,43,.18);
}
.form-note{font-size:12.5px;color:var(--muted);margin-top:12px;}
.cta-form .btn{width:100%;}

/* ---------- footer ---------- */
.site-footer{margin-top:96px;background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;margin-bottom:16px;font-weight:700;}
.footer-brand .brand-mark{background:var(--lime);color:var(--ink);}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:36ch;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--lime);margin-bottom:16px;letter-spacing:.02em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 30px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-pill{justify-content:space-between;}
  .nav-actions{margin-left:auto;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{max-width:620px;}
  .span-4,.span-5,.span-6,.span-7,.span-8{grid-column:span 6;}
  .card-wide{grid-template-columns:1fr;gap:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{grid-template-columns:1fr;padding:40px;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .shell{padding:0 18px;}
  .site-header{padding:0 12px;top:10px;}
  .brand-text{font-size:15px;}
  .span-4,.span-5,.span-6,.span-7,.span-8,.span-12{grid-column:span 12;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .section{padding:52px 0;}
  .cat-hero{padding:36px 0 60px;}
  .hero-lede{font-size:16px;}
  .cta-block{padding:28px 22px;border-radius:20px;}
  .cta-form{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:64px;padding-top:48px;}
}
@media (max-width:520px){
  .nav-pill{padding:0 10px 0 14px;gap:8px;}
  .brand-text{font-size:14px;}
  .hero-actions .btn{width:100%;}
  .card{padding:22px;}
  .faq-item summary{padding:16px 18px;font-size:16px;}
  .faq-body{padding:0 18px 18px;}
}

/* roulang page: category2 */
:root{
    --ink:#0E2E27;
    --ink-2:#17453A;
    --accent:#FF6A2B;
    --accent-deep:#EE5A1B;
    --lime:#CBF25C;
    --paper:#F7F5EF;
    --surface:#FFFFFF;
    --line:rgba(14,46,39,.10);
    --line-strong:rgba(14,46,39,.20);
    --text:#16221F;
    --muted:#5E6B67;
    --r-pill:999px;
    --r-card:18px;
    --r-input:12px;
    --r-tag:8px;
    --sh-1:0 1px 2px rgba(14,46,39,.05), 0 10px 24px rgba(14,46,39,.06);
    --sh-2:0 18px 40px rgba(14,46,39,.12);
  }

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

  html{scroll-behavior:smooth}

  html body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:17px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }

  img{max-width:100%;display:block;height:auto}
  a{color:var(--ink);text-decoration:none;transition:color .2s ease,background-color .2s ease}
  a:hover{color:var(--accent)}
  button,input,select,textarea{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

  .shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  .section{padding:88px 0}
  .section-tight{padding:64px 0}

  /* ---------- 顶部导航 ---------- */
  .site-header{position:sticky;top:16px;z-index:80;padding:0 12px}
  .nav-pill{
    max-width:1160px;margin:0 auto;height:60px;
    display:flex;align-items:center;gap:16px;
    padding:0 14px 0 16px;
    border-radius:var(--r-pill);
    background:rgba(255,255,255,.78);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid var(--line);
    box-shadow:0 10px 28px rgba(14,46,39,.07);
    transition:height .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out;
  }
  .site-header.scrolled .nav-pill{
    height:54px;
    background:rgba(255,255,255,.95);
    box-shadow:0 12px 32px rgba(14,46,39,.13);
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:34px;height:34px;border-radius:11px;flex-shrink:0;
    background:var(--ink);color:var(--lime);
    display:grid;place-items:center;
    font-weight:700;font-size:17px;letter-spacing:0;
  }
  .brand-text{font-weight:700;font-size:16px;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
  .nav-links{display:flex;align-items:center;gap:2px;margin-left:8px;flex:1}
  .nav-link{
    position:relative;display:block;
    padding:9px 14px;border-radius:var(--r-pill);
    font-size:15px;color:#33463F;white-space:nowrap;
  }
  .nav-link:hover{background:rgba(14,46,39,.06);color:var(--ink)}
  .nav-link.active{color:var(--ink);font-weight:600}
  .nav-link.active::after{
    content:"";position:absolute;left:50%;bottom:2px;
    width:16px;height:3px;border-radius:3px;
    background:var(--accent);transform:translateX(-50%);
  }
  .nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .menu-toggle{
    display:none;width:42px;height:42px;border-radius:14px;
    border:1px solid var(--line-strong);background:#fff;color:var(--ink);
    font-size:18px;line-height:1;cursor:pointer;
  }
  .menu-toggle:hover{background:rgba(14,46,39,.06)}

  .mobile-panel{
    display:none;
    max-width:1160px;margin:10px auto 0;
    background:#fff;border:1px solid var(--line);
    border-radius:24px;padding:14px;
    box-shadow:var(--sh-2);
  }
  .mobile-panel.open{display:block}
  .mobile-panel a{
    display:flex;align-items:center;min-height:46px;
    padding:0 16px;border-radius:14px;font-size:16px;color:var(--ink);
  }
  .mobile-panel a:hover{background:rgba(14,46,39,.06)}
  .mobile-panel .mobile-cta{
    justify-content:center;margin-top:8px;
    background:var(--accent);color:#fff;font-weight:600;
  }
  .mobile-panel .mobile-cta:hover{background:var(--accent-deep);color:#fff}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 24px;border-radius:var(--r-pill);
    font-size:15px;font-weight:600;letter-spacing:.01em;
    border:1px solid transparent;cursor:pointer;
    transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,43,.28)}
  .btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px)}
  .btn-ghost{border-color:var(--line-strong);color:var(--ink);background:transparent}
  .btn-ghost:hover{background:rgba(14,46,39,.06);color:var(--ink)}
  .btn-ghost-light{border-color:rgba(255,255,255,.38);color:#fff;background:transparent}
  .btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.6)}
  .btn-sm{height:38px;padding:0 18px;font-size:14px}
  .btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none}

  /* ---------- Hero ---------- */
  .hero-wrap{padding-top:24px}
  .hero-board{
    position:relative;overflow:hidden;
    border-radius:28px;
    background-image:linear-gradient(118deg,rgba(14,46,39,.97) 0%,rgba(14,46,39,.92) 42%,rgba(23,69,58,.82) 100%),url("/assets/images/backpic/back-2.webp");
    background-size:cover;background-position:center;
    color:#fff;
  }
  .hero-board::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.055) 0 1px,transparent 1px 30px);
  }
  .hero-inner{
    position:relative;z-index:2;
    display:grid;grid-template-columns:1.15fr .85fr;
    gap:40px;align-items:center;
    padding:64px 24px 56px;
  }
  .breadcrumb{position:relative;z-index:2;padding:26px 24px 0;font-size:13px;color:rgba(255,255,255,.72)}
  .breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
  .breadcrumb li+li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.4)}
  .breadcrumb a{color:rgba(255,255,255,.82)}
  .breadcrumb a:hover{color:var(--lime)}
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:var(--r-pill);
    background:rgba(203,242,92,.16);color:var(--lime);
    font-size:13px;letter-spacing:.04em;margin-bottom:18px;
  }
  .hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
  .hero-title{
    font-size:clamp(30px,4.2vw,48px);
    font-weight:700;line-height:1.25;letter-spacing:-.01em;
    color:#fff;margin-bottom:18px;
  }
  .hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:33em}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
  .hero-points li{
    padding:6px 14px;border-radius:var(--r-pill);
    border:1px solid rgba(255,255,255,.22);
    font-size:13px;color:rgba(255,255,255,.86);
  }
  .hero-media{position:relative;z-index:2}
  .hero-media img{width:100%;border-radius:22px;box-shadow:0 24px 60px rgba(0,0,0,.32)}

  /* ---------- 通用标题 ---------- */
  .sec-head{max-width:720px;margin-bottom:44px}
  .sec-bar{width:40px;height:4px;border-radius:3px;background:var(--accent);margin-bottom:16px}
  .sec-title{font-size:clamp(23px,3vw,34px);font-weight:700;line-height:1.3;color:var(--ink)}
  .sec-desc{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85}

  /* ---------- 入口能力（深色四格） ---------- */
  .ability-board{
    border-radius:24px;
    background:linear-gradient(140deg,var(--ink) 0%,var(--ink-2) 100%);
    color:#fff;overflow:hidden;
  }
  .ability-grid{display:grid;grid-template-columns:repeat(4,1fr)}
  .ability-item{padding:34px 26px;border-right:1px solid rgba(255,255,255,.10)}
  .ability-item:last-child{border-right:none}
  .ability-item.accent{background:var(--accent)}
  .ability-num{
    font-family:ui-monospace,"DIN Alternate",Menlo,monospace;
    font-variant-numeric:tabular-nums;
    font-size:clamp(28px,3.6vw,42px);font-weight:700;line-height:1.1;
    color:var(--lime);
  }
  .ability-item.accent .ability-num{color:#fff}
  .ability-label{font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.72);margin-top:10px}
  .ability-item.accent .ability-label{color:rgba(255,255,255,.92)}
  .ability-text{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);margin-top:12px}
  .ability-item.accent .ability-text{color:rgba(255,255,255,.94)}

  /* ---------- 卡片网格 ---------- */
  .card{
    position:relative;overflow:hidden;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    padding:26px;
    transition:transform .25s ease,box-shadow .25s ease;
    display:flex;flex-direction:column;
  }
  .card::before{
    content:"";position:absolute;top:0;left:24px;
    width:0;height:3px;border-radius:0 0 3px 3px;
    background:var(--accent);transition:width .28s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
  .card:hover::before{width:56px}
  .card h3{font-size:20px;font-weight:600;line-height:1.45;color:var(--ink);margin-bottom:10px}
  .card p{font-size:15px;line-height:1.8;color:var(--muted)}
  .icon-box{
    width:44px;height:44px;border-radius:12px;
    background:rgba(203,242,92,.42);color:var(--ink);
    display:grid;place-items:center;font-size:17px;font-weight:700;
    margin-bottom:16px;flex-shrink:0;
  }
  .card-img{border-radius:14px;overflow:hidden;margin-bottom:18px}
  .card-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
  .card:hover .card-img img{transform:scale(1.04)}
  .card-link{
    margin-top:auto;padding-top:16px;
    font-size:14px;font-weight:600;color:var(--ink);
    display:inline-flex;align-items:center;gap:6px;
  }
  .card-link span{transition:transform .2s ease;display:inline-block}
  .card:hover .card-link{color:var(--accent)}
  .card:hover .card-link span{transform:translateX(4px)}
  .tag{
    display:inline-flex;align-items:center;
    padding:4px 10px;border-radius:var(--r-tag);
    background:rgba(255,106,43,.12);color:#C24A16;
    font-size:12px;letter-spacing:.02em;margin-bottom:14px;
  }
  .tag-lime{background:rgba(203,242,92,.35);color:#3F5A14}

  .grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
  .col-6{grid-column:span 6}
  .col-5{grid-column:span 5}
  .col-4{grid-column:span 4}
  .col-3{grid-column:span 3}
  .col-7{grid-column:span 7}

  /* ---------- 流程 ---------- */
  .flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
  .flow-step{position:relative;padding-top:26px;border-top:2px solid var(--line-strong)}
  .flow-step::before{
    content:"";position:absolute;top:-7px;left:0;
    width:12px;height:12px;border-radius:50%;
    background:var(--accent);
  }
  .flow-step.active::before{background:var(--accent);box-shadow:0 0 0 5px rgba(255,106,43,.16)}
  .flow-step .step-num{
    font-family:ui-monospace,"DIN Alternate",Menlo,monospace;
    font-size:13px;letter-spacing:.08em;color:var(--accent);font-weight:700;
  }
  .flow-step h3{font-size:19px;font-weight:600;color:var(--ink);margin:8px 0 8px}
  .flow-step p{font-size:15px;color:var(--muted);line-height:1.8}

  /* ---------- 场景 ---------- */
  .scene-wrap{
    display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center;
  }
  .scene-media img{border-radius:22px;box-shadow:var(--sh-1)}
  .scene-list{margin-top:26px;display:flex;flex-direction:column;gap:2px}
  .scene-item{
    display:flex;gap:16px;padding:18px 0;
    border-bottom:1px solid var(--line);
  }
  .scene-item:first-child{border-top:1px solid var(--line)}
  .scene-item .idx{
    flex-shrink:0;width:34px;height:34px;border-radius:10px;
    background:rgba(14,46,39,.06);color:var(--ink);
    display:grid;place-items:center;font-size:13px;font-weight:700;
    font-family:ui-monospace,"DIN Alternate",Menlo,monospace;
  }
  .scene-item h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:4px}
  .scene-item p{font-size:15px;color:var(--muted);line-height:1.8}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:900px}
  .faq-item{
    background:#fff;border:1px solid var(--line);
    border-radius:18px;margin-bottom:12px;overflow:hidden;
    transition:box-shadow .2s ease;
  }
  .faq-item[open]{box-shadow:var(--sh-1)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    padding:18px 22px;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    font-size:17px;font-weight:600;color:var(--ink);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary::after{
    content:"＋";color:var(--accent);font-size:18px;line-height:1;
    transition:transform .25s ease;flex-shrink:0;
  }
  .faq-item[open] summary::after{transform:rotate(45deg)}
  .faq-body{
    padding:0 22px 20px;
    color:var(--muted);font-size:15.5px;line-height:1.85;max-width:60ch;
  }

  /* ---------- CTA 表单 ---------- */
  .cta-board{
    border-radius:26px;overflow:hidden;
    background:linear-gradient(135deg,var(--ink) 0%,var(--ink-2) 100%);
    color:#fff;
    display:grid;grid-template-columns:1fr 1fr;
  }
  .cta-copy{padding:52px 46px}
  .cta-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;color:#fff}
  .cta-copy p{margin-top:14px;color:rgba(255,255,255,.78);font-size:16px;line-height:1.85}
  .trust-list{margin-top:26px;display:flex;flex-direction:column;gap:12px}
  .trust-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.86)}
  .trust-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);flex-shrink:0}
  .cta-form{background:#fff;padding:44px 46px}
  .cta-form h3{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:6px}
  .cta-form .form-note{font-size:14px;color:var(--muted);margin-bottom:24px}
  .field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
  .field label{font-size:14px;color:var(--muted)}
  .field input,.field textarea{
    width:100%;border-radius:var(--r-input);
    border:1px solid var(--line-strong);background:#fff;
    padding:0 14px;height:48px;font-size:15px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field textarea{height:auto;padding:12px 14px;resize:vertical;min-height:92px;line-height:1.7}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--accent);
    box-shadow:0 0 0 3px rgba(255,106,43,.18);
  }
  .form-submit{width:100%;margin-top:6px}
  .form-tip{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.7}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
    padding:64px 0 46px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .footer-brand .brand-mark{background:rgba(255,255,255,.12);color:var(--lime)}
  .footer-brand strong{color:#fff;font-size:16px}
  .footer-about{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:32em}
  .footer-col h4{font-size:14px;color:var(--lime);letter-spacing:.04em;margin-bottom:16px;font-weight:600}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col a{color:rgba(255,255,255,.72);font-size:14.5px}
  .footer-col a:hover{color:#fff}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    padding:20px 0 30px;border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:rgba(255,255,255,.55);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .section{padding:64px 0}
    .hero-inner{grid-template-columns:1fr;padding:48px 24px 46px;gap:30px}
    .hero-media{order:-1}
    .ability-grid{grid-template-columns:repeat(2,1fr)}
    .ability-item{border-bottom:1px solid rgba(255,255,255,.10)}
    .ability-item:nth-child(2n){border-right:none}
    .ability-item:nth-last-child(-n+2){border-bottom:none}
    .flow-grid{grid-template-columns:repeat(2,1fr);gap:28px}
    .scene-wrap{grid-template-columns:1fr;gap:32px}
    .cta-board{grid-template-columns:1fr}
    .cta-copy{padding:44px 34px}
    .cta-form{padding:38px 34px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  }

  @media (max-width:900px){
    .nav-links{display:none}
    .nav-actions .btn{display:none}
    .menu-toggle{display:grid;place-items:center}
    .nav-pill{justify-content:space-between}
  }

  @media (max-width:768px){
    .grid-12{grid-template-columns:1fr;gap:18px}
    .col-3,.col-4,.col-5,.col-6,.col-7{grid-column:span 1}
    .sec-head{margin-bottom:30px}
    .section{padding:52px 0}
  }

  @media (max-width:560px){
    html body{font-size:16px}
    .shell{padding:0 16px}
    .site-header{padding:0 12px;top:10px}
    .brand-text{font-size:15px}
    .hero-board{border-radius:22px}
    .hero-inner{padding:34px 18px 36px}
    .breadcrumb{padding:20px 18px 0}
    .hero-actions .btn{width:100%}
    .ability-grid{grid-template-columns:1fr}
    .ability-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.10)}
    .ability-item:last-child{border-bottom:none}
    .flow-grid{grid-template-columns:1fr}
    .card{padding:22px}
    .cta-copy{padding:34px 22px}
    .cta-form{padding:30px 22px}
    .footer-grid{grid-template-columns:1fr;padding:48px 0 34px}
    .faq-item summary{font-size:16px;padding:16px 18px}
    .faq-body{padding:0 18px 18px}
  }