/* roulang page: index */
:root {
    --primary: #0F6B5A;
    --primary-dark: #083D34;
    --primary-light: #0D8E72;
    --accent: #D97706;
    --accent-dark: #B45309;
    --page-bg: #F7F9F8;
    --card-bg: #FFFFFF;
    --ink: #1F2937;
    --muted: #6B7280;
    --border: #E5E7EB;
    --radius-lg: 2rem;
    --radius-md: 1.5rem;
    --radius-btn: 0.75rem;
    --shadow-default: 0 12px 30px rgba(11,107,90,0.08);
    --shadow-hover: 0 18px 40px rgba(11,107,90,0.15);
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; scroll-padding-top: 120px; }
  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    background: var(--page-bg);
    color: var(--ink);
    line-height: 1.75;
    font-size: 16px;
  }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  button { cursor: pointer; font-family: inherit; }
  input { font-family: inherit; }

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

  /* ---------- 双层导航 ---------- */
  .site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
  }
  .top-nav {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }
  .brand-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
  }
  .brand-stamp {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, var(--primary-light), var(--primary-dark));
    display: flex; align-items: center; justify-content: center;
    border: 2px solid rgba(217,119,6,0.6);
    box-shadow: 0 2px 0 rgba(0,0,0,0.2);
    color: #fff;
    font-weight: 800;
    font-size: 15px;
    flex-shrink: 0;
  }
  .brand-name {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-dark);
    letter-spacing: 0.02em;
  }
  .search-box {
    display: flex;
    align-items: center;
    background: #fff;
    border: 2px solid var(--border);
    border-radius: 999px;
    padding: 0 6px 0 14px;
    height: 40px;
    transition: border-color .2s, box-shadow .2s;
    max-width: 360px;
    width: 100%;
  }
  .search-box:hover { border-color: rgba(15,107,90,0.3); }
  .search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(15,107,90,0.12);
  }
  .search-box input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 0.875rem;
    color: var(--ink);
    min-height: 36px;
    width: 100%;
  }
  .search-box input::placeholder { color: #9ca3af; }
  .search-box button {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    border: none;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    transition: background .2s;
  }
  .search-box button:hover { background: var(--primary-dark); }
  .search-toggle {
    width: 42px; height: 42px;
    display: none;
    align-items: center; justify-content: center;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: #fff;
    font-size: 15px;
    color: var(--primary-dark);
  }
  .mobile-search {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: #fff;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 20px rgba(0,0,0,0.06);
  }
  .mobile-search.active { display: block; }
  .mobile-search form {
    display: flex;
    align-items: center;
    border: 2px solid var(--primary);
    border-radius: 999px;
    overflow: hidden;
    height: 42px;
  }
  .mobile-search input {
    flex: 1;
    border: none;
    padding: 0 14px;
    font-size: 14px;
    outline: none;
    min-width: 0;
  }
  .mobile-search button {
    width: 44px; height: 42px;
    border: none;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
  }
  .nav-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--accent), #F59E0B);
    color: #fff;
    font-weight: 700;
    font-size: 0.875rem;
    border: none;
    border-radius: 999px;
    padding: 10px 18px;
    box-shadow: 0 4px 14px rgba(217,119,6,0.3);
    transition: transform .2s, box-shadow .2s, background .2s;
    white-space: nowrap;
  }
  .nav-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(217,119,6,0.4);
    background: linear-gradient(135deg, #B45309, var(--accent));
  }
  .channel-nav {
    border-top: 1px solid rgba(229,231,235,0.6);
    background: rgba(255,255,255,0.6);
  }
  .channel-links {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 7px 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .channel-links::-webkit-scrollbar { display: none; }
  .channel-link {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 18px;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--muted);
    border: 1px solid transparent;
    transition: all .2s;
    white-space: nowrap;
  }
  .channel-link:hover {
    color: var(--primary-dark);
    background: rgba(15,107,90,0.06);
    border-color: rgba(15,107,90,0.18);
  }
  .channel-link.active {
    color: #fff;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    border-color: transparent;
    box-shadow: 0 6px 16px rgba(15,107,90,0.25);
  }
  .header-spacer { height: 112px; }

  /* ---------- 通用板块 ---------- */
  .section { padding: 96px 0; }
  .section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 52px;
  }
  .chapter-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--primary);
    background: rgba(15,107,90,0.08);
    border: 1px dashed rgba(15,107,90,0.3);
    padding: 5px 14px;
    border-radius: 999px;
    margin-bottom: 16px;
  }
  .chapter-tag span {
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 800;
  }
  .section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-dark);
  }
  .section-subtitle {
    margin-top: 14px;
    font-size: 1.05rem;
    color: var(--muted);
  }
  .deco-line {
    width: 64px; height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    border-radius: 999px;
    margin: 20px auto 0;
    position: relative;
  }
  .deco-line::after {
    content: '';
    position: absolute;
    right: -2px; top: -3px;
    width: 9px; height: 9px;
    background: var(--accent);
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  }

  /* ---------- Hero ---------- */
  .hero-card {
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #083D34 0%, #0F6B5A 55%, #0D8E72 100%);
    overflow: hidden;
    position: relative;
    box-shadow: 0 24px 60px rgba(8,61,52,0.2);
  }
  .hero-card::before {
    content: '';
    position: absolute;
    width: 320px; height: 320px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    top: -140px; right: -80px;
  }
  .hero-card::after {
    content: '';
    position: absolute;
    width: 180px; height: 180px;
    border-radius: 50%;
    background: rgba(217,119,6,0.14);
    bottom: -60px; left: 30px;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
    padding: 56px 56px 64px;
    position: relative;
    z-index: 1;
  }
  .hero-title {
    color: #fff;
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: 0.01em;
  }
  .hero-title .accent-dot {
    color: #FBBF24;
  }
  .hero-sub {
    color: rgba(255,255,255,0.88);
    font-size: 1.1rem;
    line-height: 1.75;
    margin-top: 18px;
    max-width: 480px;
  }
  .hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
  }
  .btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #B45309, var(--accent));
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    border: none;
    border-radius: var(--radius-btn);
    padding: 13px 26px;
    box-shadow: 0 8px 24px rgba(217,119,6,0.35);
    transition: all .25s;
  }
  .btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(217,119,6,0.45);
  }
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.08);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    border: 1.5px solid rgba(255,255,255,0.5);
    border-radius: var(--radius-btn);
    padding: 12px 24px;
    backdrop-filter: blur(4px);
    transition: all .25s;
  }
  .btn-ghost:hover {
    background: rgba(255,255,255,0.18);
    border-color: #fff;
  }
  .hero-visual {
    position: relative;
  }
  .hero-visual img {
    border-radius: 1.25rem;
    box-shadow: 0 18px 32px rgba(0,0,0,0.22);
    aspect-ratio: 4/3;
    object-fit: cover;
    width: 100%;
    border: 3px solid rgba(255,255,255,0.2);
  }
  .float-badge-1 {
    position: absolute;
    top: 16px; left: -18px;
    background: rgba(255,255,255,0.92);
    border-radius: 14px;
    padding: 10px 16px;
    box-shadow: 0 10px 24px rgba(0,0,0,0.18);
    display: flex;
    align-items: center;
    gap: 10px;
    transform: rotate(-3deg);
    backdrop-filter: blur(6px);
  }
  .float-badge-1 .num {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
  }
  .float-badge-1 .label {
    font-size: 0.75rem;
    color: var(--muted);
    line-height: 1.3;
  }
  .float-badge-2 {
    position: absolute;
    bottom: 20px; right: -10px;
    background: var(--accent);
    color: #fff;
    border-radius: 999px;
    padding: 10px 18px;
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: 0 8px 20px rgba(217,119,6,0.4);
    display: flex;
    align-items: center;
    gap: 8px;
    transform: rotate(2deg);
  }
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: -28px;
    position: relative;
    z-index: 5;
    padding: 0 56px;
  }
  .stat-badge {
    background: #fff;
    border: 1px solid rgba(15,107,90,0.1);
    border-radius: 18px;
    padding: 18px 20px;
    box-shadow: var(--shadow-default);
    display: flex;
    align-items: center;
    gap: 14px;
    transition: transform .25s, box-shadow .25s;
  }
  .stat-badge:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }
  .stat-num {
    font-size: clamp(1.6rem, 2.5vw, 2rem);
    font-weight: 800;
    color: var(--accent);
    line-height: 1.1;
  }
  .stat-label {
    font-size: 0.8rem;
    color: var(--muted);
    line-height: 1.4;
    border-left: 1px solid var(--border);
    padding-left: 12px;
  }

  /* ---------- 卖点区 ---------- */
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }
  .feature-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 30px 28px;
    border: 1px solid rgba(15,107,90,0.08);
    box-shadow: var(--shadow-default);
    position: relative;
    transition: transform .3s, box-shadow .3s;
  }
  .feature-card:nth-child(odd) { transform: translateY(12px); }
  .feature-card:nth-child(even) { transform: translateY(0); }
  .feature-card:hover {
    transform: translateY(-4px) !important;
    box-shadow: var(--shadow-hover);
  }
  .feature-card.col-7 { grid-column: span 7; }
  .feature-card.col-5 { grid-column: span 5; }
  .feature-card.col-5-offset { grid-column: 2 / span 5; }
  .feature-card.col-7-offset { grid-column: 6 / span 7; }
  .feature-icon {
    width: 52px; height: 52px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #fff;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    box-shadow: 0 6px 16px rgba(15,107,90,0.22);
    margin-bottom: 18px;
    border: 2px solid rgba(255,255,255,0.4);
  }
  .feature-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 8px;
  }
  .feature-card p {
    font-size: 0.95rem;
    color: var(--muted);
    line-height: 1.7;
  }
  .feature-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    border-bottom: 2px solid rgba(15,107,90,0.2);
    padding-bottom: 2px;
    transition: border-color .2s, gap .2s;
  }
  .feature-more:hover {
    border-color: var(--accent);
    gap: 10px;
    color: var(--accent-dark);
  }

  /* ---------- 演示区 ---------- */
  .demo-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 56px;
    box-shadow: var(--shadow-default);
    border: 1px solid rgba(15,107,90,0.08);
  }
  .demo-title {
    font-size: clamp(1.75rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--primary-dark);
    line-height: 1.25;
  }
  .demo-sub {
    color: var(--muted);
    margin-top: 12px;
    font-size: 0.95rem;
  }
  .step-list { margin-top: 28px; }
  .step-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px dashed rgba(229,231,235,0.9);
  }
  .step-item:last-child { border-bottom: none; }
  .step-num {
    width: 34px; height: 34px;
    border-radius: 12px;
    background: rgba(15,107,90,0.08);
    border: 2px solid rgba(15,107,90,0.2);
    color: var(--primary-dark);
    font-weight: 800;
    font-size: 0.8rem;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .step-item h4 {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--ink);
  }
  .step-item p {
    font-size: 0.9rem;
    color: var(--muted);
    margin-top: 2px;
    line-height: 1.65;
  }
  .demo-media {
    position: relative;
  }
  .demo-media img {
    border-radius: 1.25rem;
    box-shadow: 0 18px 44px rgba(8,61,52,0.2);
    aspect-ratio: 4/3;
    object-fit: cover;
    width: 100%;
  }
  .demo-float-stat {
    position: absolute;
    bottom: 24px; left: -16px;
    background: var(--primary-dark);
    color: #fff;
    border-radius: 16px;
    padding: 14px 20px;
    box-shadow: 0 12px 28px rgba(8,61,52,0.35);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: rotate(-2deg);
    border: 1px solid rgba(255,255,255,0.15);
  }
  .demo-float-stat .icon {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: rgba(217,119,6,0.9);
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    color: #fff;
  }
  .demo-float-stat .num {
    font-size: 1.15rem;
    font-weight: 800;
  }
  .demo-float-stat .txt {
    font-size: 0.72rem;
    opacity: 0.8;
  }
  .comparison-bar {
    display: flex;
    gap: 16px;
    margin-top: 32px;
    background: var(--page-bg);
    border-radius: 16px;
    padding: 18px 24px;
    border: 1px dashed rgba(15,107,90,0.25);
  }
  .comp-item {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .comp-item .label {
    font-size: 0.8rem;
    color: var(--muted);
  }
  .comp-item .value {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary-dark);
  }
  .comp-item .arrow {
    color: var(--accent);
    font-size: 1.1rem;
  }

  /* ---------- 证据区 ---------- */
  .proof-scroll {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    padding: 8px 4px 20px;
    scrollbar-width: thin;
    scrollbar-color: rgba(15,107,90,0.3) transparent;
  }
  .proof-card {
    min-width: 300px;
    max-width: 340px;
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(15,107,90,0.08);
    box-shadow: var(--shadow-default);
    flex-shrink: 0;
    transition: transform .3s, box-shadow .3s;
  }
  .proof-card:hover {
    transform: translateY(-6px) rotate(-0.5deg);
    box-shadow: var(--shadow-hover);
  }
  .proof-card:nth-child(even) { transform: translateY(10px); }
  .proof-card:nth-child(even):hover { transform: translateY(4px) rotate(0.5deg); }
  .proof-card img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
  }
  .proof-card-body { padding: 20px; }
  .proof-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--primary);
    background: rgba(15,107,90,0.08);
    border-radius: 999px;
    padding: 3px 10px;
    letter-spacing: 0.03em;
  }
  .proof-card h4 {
    font-weight: 700;
    font-size: 1.1rem;
    margin-top: 12px;
    color: var(--ink);
    line-height: 1.4;
  }
  .proof-card p {
    font-size: 0.875rem;
    color: var(--muted);
    margin-top: 8px;
    line-height: 1.6;
  }
  .proof-achievement {
    display: flex;
    gap: 16px;
    margin-top: 20px;
    flex-wrap: wrap;
  }
  .achievement-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-dark);
    background: rgba(217,119,6,0.1);
    border: 1px solid rgba(217,119,6,0.2);
    border-radius: 999px;
    padding: 5px 12px;
  }

  /* ---------- 价格区 ---------- */
  .pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
    max-width: 1080px;
    margin: 0 auto;
  }
  .pricing-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 32px 28px;
    border: 1px solid rgba(15,107,90,0.08);
    box-shadow: var(--shadow-default);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform .3s, box-shadow .3s;
  }
  .pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }
  .pricing-card.popular {
    background: linear-gradient(160deg, #fff 0%, #f0f8f5 100%);
    border: 2px solid var(--primary);
    box-shadow: 0 20px 48px rgba(15,107,90,0.18);
    transform: scale(1.04);
    z-index: 2;
  }
  .pricing-card.popular:hover {
    transform: scale(1.04) translateY(-4px);
  }
  .popular-badge {
    position: absolute;
    top: -14px; left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent), #F59E0B);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 800;
    border-radius: 999px;
    padding: 6px 18px;
    box-shadow: 0 6px 16px rgba(217,119,6,0.35);
    letter-spacing: 0.04em;
    white-space: nowrap;
  }
  .pricing-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-dark);
  }
  .pricing-desc {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 4px;
  }
  .pricing-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin: 20px 0;
  }
  .pricing-price .currency {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ink);
  }
  .pricing-price .amount {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--ink);
    line-height: 1;
  }
  .pricing-price .unit {
    font-size: 0.85rem;
    color: var(--muted);
  }
  .pricing-features {
    list-style: none;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 26px;
  }
  .pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--ink);
  }
  .pricing-features li i {
    color: var(--primary);
    font-size: 0.85rem;
    margin-top: 5px;
    flex-shrink: 0;
  }
  .pricing-features li.disabled {
    color: #b0b8bf;
    text-decoration: line-through;
  }
  .btn-pricing {
    display: block;
    text-align: center;
    padding: 13px 20px;
    border-radius: var(--radius-btn);
    font-size: 0.95rem;
    font-weight: 700;
    border: 2px solid var(--primary);
    color: var(--primary);
    background: #fff;
    transition: all .25s;
  }
  .btn-pricing:hover {
    background: var(--primary);
    color: #fff;
  }
  .btn-pricing.popular-btn {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
    border: none;
    box-shadow: 0 8px 20px rgba(15,107,90,0.25);
  }
  .btn-pricing.popular-btn:hover {
    box-shadow: 0 12px 30px rgba(15,107,90,0.35);
    transform: translateY(-2px);
  }

  /* ---------- FAQ ---------- */
  .faq-wrap {
    max-width: 860px;
    margin: 0 auto;
  }
  .faq-item {
    background: #fff;
    border-radius: 20px;
    border: 1px solid rgba(15,107,90,0.08);
    box-shadow: var(--shadow-default);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .3s, box-shadow .3s;
  }
  .faq-item.open {
    border-color: rgba(15,107,90,0.3);
    box-shadow: var(--shadow-hover);
  }
  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 22px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--ink);
  }
  .faq-q .faq-icon {
    width: 30px; height: 30px;
    border-radius: 50%;
    background: rgba(15,107,90,0.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
    transition: transform .3s, background .3s, color .3s;
  }
  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--primary);
    color: #fff;
  }
  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
  }
  .faq-a-inner {
    padding: 0 22px 20px;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.75;
  }
  .faq-more-cta {
    text-align: center;
    margin-top: 28px;
  }
  .faq-more-cta a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    border-bottom: 2px solid rgba(15,107,90,0.25);
    padding-bottom: 4px;
    transition: border-color .2s;
  }
  .faq-more-cta a:hover { border-color: var(--accent); }

  /* ---------- 新闻区 ---------- */
  .news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .news-card {
    display: block;
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(15,107,90,0.08);
    box-shadow: var(--shadow-default);
    transition: transform .3s, box-shadow .3s;
  }
  .news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }
  .news-card:hover img { transform: scale(1.05); }
  .news-cover {
    overflow: hidden;
    aspect-ratio: 4/3;
    background: #eef3f0;
  }
  .news-cover img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
  }
  .news-body { padding: 18px 20px 20px; }
  .news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
  }
  .category-pill {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
    background: rgba(15,107,90,0.08);
    border-radius: 999px;
    padding: 3px 12px;
  }
  .news-time {
    font-size: 0.78rem;
    color: #9ca3af;
    white-space: nowrap;
  }
  .news-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .news-card .news-excerpt {
    font-size: 0.875rem;
    color: var(--muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .news-more-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    transition: gap .2s;
  }
  .news-card:hover .news-more-link { gap: 10px; }
  .empty-state {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 48px 24px;
    text-align: center;
    border: 1px dashed rgba(15,107,90,0.2);
  }
  .empty-state i {
    font-size: 2.5rem;
    color: #c0cdc8;
    margin-bottom: 12px;
  }
  .empty-state p {
    color: var(--muted);
    font-size: 0.95rem;
  }

  /* ---------- CTA 区 ---------- */
  .cta-card {
    background: linear-gradient(135deg, #083D34 0%, #0F6B5A 70%, #0D8E72 100%);
    border-radius: var(--radius-lg);
    padding: 56px 64px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(8,61,52,0.25);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
  }
  .cta-card::before {
    content: '';
    position: absolute;
    width: 240px; height: 240px;
    border: 40px solid rgba(255,255,255,0.05);
    border-radius: 50%;
    top: -80px; right: -40px;
  }
  .cta-card::after {
    content: '';
    position: absolute;
    width: 120px; height: 120px;
    border-radius: 50%;
    background: rgba(217,119,6,0.18);
    bottom: -40px; left: 20px;
  }
  .cta-title {
    font-size: clamp(1.75rem, 3vw, 2.4rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.25;
  }
  .cta-sub {
    color: rgba(255,255,255,0.85);
    font-size: 1rem;
    margin-top: 10px;
    max-width: 520px;
  }
  .cta-btn-group {
    display: flex;
    gap: 14px;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
  }

  /* ---------- 页脚 ---------- */
  .site-footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.75);
    margin-top: 0;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding: 64px 0 40px;
  }
  .footer-brand .brand-name-footer {
    color: #fff;
    font-size: 1.4rem;
    font-weight: 800;
  }
  .footer-intro {
    margin-top: 14px;
    font-size: 0.9rem;
    line-height: 1.75;
    color: rgba(255,255,255,0.6);
    max-width: 300px;
  }
  .footer-social {
    display: flex;
    gap: 10px;
    margin-top: 18px;
  }
  .footer-social a {
    width: 38px; height: 38px;
    border-radius: 12px;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    border: 1px solid rgba(255,255,255,0.1);
    transition: all .25s;
  }
  .footer-social a:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-3px);
  }
  .footer-title {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 10px;
  }
  .footer-title::after {
    content: '';
    position: absolute;
    left: 0; bottom: 0;
    width: 28px; height: 2px;
    background: var(--accent);
    border-radius: 999px;
  }
  .footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 9px;
  }
  .footer-links a {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: color .2s, padding-left .2s;
  }
  .footer-links a:hover {
    color: #fff;
    padding-left: 5px;
  }
  .footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 10px;
  }
  .footer-contact-item i {
    color: var(--accent);
    width: 16px;
  }
  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
  }

  /* ---------- 浮动 CTA ---------- */
  .floating-cta {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 60;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: 999px;
    padding: 14px 22px;
    box-shadow: 0 12px 32px rgba(8,61,52,0.35);
    border: 2px solid rgba(255,255,255,0.15);
    transition: transform .3s, box-shadow .3s;
    min-height: 48px;
  }
  .floating-cta:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 40px rgba(8,61,52,0.45);
  }
  @media (max-width: 640px) {
    .floating-cta { right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); padding: 12px 18px; }
  }

  /* ---------- 响应式 ---------- */
  @media (max-width: 1024px) {
    .section { padding: 72px 0; }
    .hero-grid { padding: 40px; gap: 28px; grid-template-columns: 1fr; }
    .hero-stats { padding: 0 40px; grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: 1fr 1fr; }
    .feature-card.col-7, .feature-card.col-5,
    .feature-card.col-5-offset, .feature-card.col-7-offset {
      grid-column: span 1;
      transform: none !important;
    }
    .feature-card.col-5-offset { grid-column: 1 / -1; width: 100%; }
    .demo-wrap { grid-template-columns: 1fr; padding: 40px; gap: 36px; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 560px; gap: 20px; }
    .pricing-card.popular { transform: scale(1); }
    .pricing-card.popular:hover { transform: translateY(-4px); }
    .news-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .cta-card { padding: 44px 36px; flex-direction: column; text-align: center; }
  }
  @media (max-width: 768px) {
    .top-nav { height: 60px; }
    .header-spacer { height: 104px; }
    .search-box { display: none; }
    .search-toggle { display: flex; }
    .nav-cta-btn span { display: none; }
    .nav-cta-btn { width: 42px; height: 42px; padding: 0; justify-content: center; border-radius: 50%; }
    .brand-name { font-size: 1.15rem; }
    .channel-links { padding: 6px 4px; }
    .channel-link { padding: 6px 14px; font-size: 0.82rem; }
    .hero-card { border-radius: 1.25rem; }
    .hero-grid { padding: 32px 24px 48px; }
    .hero-stat { padding: 0 24px; }
    .hero-stats { grid-template-columns: 1fr 1fr; gap: 14px; padding: 0 20px; margin-top: -24px; }
    .feature-grid { grid-template-columns: 1fr; }
    .demo-wrap { padding: 28px 20px; border-radius: 1.25rem; }
    .demo-float-stat { left: 8px; }
    .section { padding: 56px 0; }
    .section-head { margin-bottom: 36px; }
    .news-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
  }
  @media (max-width: 520px) {
    .container { padding: 0 16px; }
    .hero-stats { grid-template-columns: 1fr; }
    .hero-grid { padding: 28px 18px 40px; }
    .hero-card { border-radius: 1.1rem; }
    .btn-accent, .btn-ghost { width: 100%; justify-content: center; }
    .hero-ctas { flex-direction: column; }
    .cta-card { padding: 36px 22px; }
    .cta-btn-group { flex-direction: column; width: 100%; }
    .cta-btn-group .btn-accent, .cta-btn-group .btn-ghost { width: 100%; justify-content: center; }
    .comparison-bar { flex-direction: column; }
    .proof-scroll .proof-card { min-width: 260px; }
  }

/* roulang page: article */
:root {
            --primary: #0F6B5A;
            --primary-dark: #083D34;
            --primary-light: #0D8E72;
            --accent: #D97706;
            --accent-hover: #B85C04;
            --bg: #F7F9F8;
            --card: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #6B7280;
            --border: #E5E7EB;
            --radius-xl: 2rem;
            --radius-lg: 1.25rem;
            --radius-md: 0.75rem;
            --shadow: 0 12px 30px rgba(11, 107, 90, 0.08);
            --shadow-hover: 0 18px 40px rgba(11, 107, 90, 0.15);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font: inherit;
            border: none;
            outline: none;
            background: none;
        }

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

        /* ======== 双层导航 ======== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.93);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .top-nav {
            height: 64px;
        }

        .top-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 64px;
        }

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

        .brand-logo {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.15rem;
            box-shadow: 0 4px 10px rgba(15, 107, 90, 0.25);
        }

        .brand-name {
            font-size: 1.28rem;
            font-weight: 700;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .search-box {
            flex: 1;
            max-width: 360px;
            height: 40px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 16px;
            transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
        }

        .search-box i {
            color: var(--text-secondary);
            font-size: 0.875rem;
        }

        .search-box input {
            flex: 1;
            font-size: 0.875rem;
            color: var(--text);
            background: transparent;
            min-width: 0;
        }

        .search-box input::placeholder {
            color: #9CA3AF;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(15, 107, 90, 0.1);
            background: #fff;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.2;
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(15, 107, 90, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 22px rgba(15, 107, 90, 0.35);
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            box-shadow: 0 8px 22px rgba(217, 119, 6, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow);
        }

        .btn-sm {
            padding: 0.5rem 1.1rem;
            font-size: 0.875rem;
        }

        .channel-nav {
            border-top: 1px solid var(--border);
            height: 48px;
            display: flex;
            align-items: center;
        }

        .channel-links {
            display: flex;
            align-items: center;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
            padding: 4px 0;
        }

        .channel-links::-webkit-scrollbar {
            display: none;
        }

        .channel-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .channel-link:hover {
            background: rgba(15, 107, 90, 0.07);
            color: var(--primary);
        }

        .channel-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(15, 107, 90, 0.25);
        }

        /* ======== 面包屑 ======== */
        .breadcrumb-bar {
            padding: 20px 0 8px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px 20px;
            width: fit-content;
            max-width: 100%;
            overflow: hidden;
        }

        .breadcrumb a {
            transition: color 0.2s;
        }

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

        .breadcrumb .sep {
            color: #D1D5DB;
        }

        .breadcrumb .current {
            color: var(--text);
            max-width: 280px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ======== 文章主体 ======== */
        .article-section {
            padding: 24px 0 72px;
        }

        .article-shell {
            background: var(--card);
            border-radius: var(--radius-xl);
            border: 1px solid rgba(15, 107, 90, 0.1);
            box-shadow: var(--shadow);
            padding: clamp(24px, 5vw, 52px);
            max-width: 860px;
            margin: 0 auto;
            position: relative;
        }

        .article-header {
            text-align: left;
            margin-bottom: 28px;
            border-bottom: 1px dashed rgba(15, 107, 90, 0.2);
            padding-bottom: 28px;
        }

        .article-category {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(15, 107, 90, 0.1);
            color: var(--primary);
            font-size: 0.8125rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
            border: 1px solid rgba(15, 107, 90, 0.15);
        }

        .article-title {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--primary-dark);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--primary);
            opacity: 0.7;
        }

        .article-cover {
            border-radius: 1.5rem;
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow);
        }

        .article-cover img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        .article-body {
            font-size: 1.0625rem;
            line-height: 1.85;
            color: var(--text);
        }

        .article-body > * + * {
            margin-top: 1.25em;
        }

        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 2em 0 0.75em;
            padding-left: 0.9rem;
            border-left: 4px solid var(--primary);
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 1.75em 0 0.6em;
            line-height: 1.35;
        }

        .article-body p {
            margin: 0 0 1.2em;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color 0.2s;
        }

        .article-body a:hover {
            color: var(--accent);
        }

        .article-body ul,
        .article-body ol {
            margin: 1.25em 0;
            padding-left: 1.5em;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 0.55em;
        }

        .article-body ul li::marker {
            color: var(--primary);
        }

        .article-body blockquote {
            margin: 1.75em 0;
            padding: 1.25em 1.5em;
            background: rgba(15, 107, 90, 0.06);
            border-left: 4px solid var(--primary);
            border-radius: 0 1rem 1rem 0;
            color: var(--primary-dark);
        }

        .article-body blockquote p {
            margin: 0;
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 1.25rem;
            margin: 1.75em 0;
            box-shadow: var(--shadow);
        }

        .article-body pre {
            background: #0B1F1A;
            color: #D1FAE5;
            padding: 1.25em 1.5em;
            border-radius: 1rem;
            overflow-x: auto;
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 1.75em 0;
        }

        .article-body code {
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
            background: rgba(15, 107, 90, 0.1);
            color: var(--primary-dark);
            padding: 0.15em 0.4em;
            border-radius: 0.35em;
            font-size: 0.9em;
        }

        .article-body pre code {
            background: none;
            color: inherit;
            padding: 0;
            border-radius: 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.75em 0;
            font-size: 0.95rem;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 0.6em 0.9em;
            text-align: left;
        }

        .article-body th {
            background: rgba(15, 107, 90, 0.06);
            font-weight: 600;
            color: var(--primary-dark);
        }

        .article-body hr {
            border: none;
            border-top: 2px dashed var(--border);
            margin: 2.5em 0;
        }

        /* ======== 空态 ======== */
        .article-empty {
            text-align: center;
            padding: 72px 24px;
        }

        .article-empty .empty-icon {
            width: 88px;
            height: 88px;
            margin: 0 auto 24px;
            border-radius: 50%;
            background: rgba(15, 107, 90, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--primary);
        }

        .article-empty h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .article-empty p {
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        /* ======== 相关推荐 ======== */
        .related-section {
            padding: 40px 0 16px;
        }

        .section-heading {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.1rem);
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
        }

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

        .related-card {
            background: var(--card);
            border-radius: 1.5rem;
            border: 1px solid rgba(15, 107, 90, 0.08);
            box-shadow: var(--shadow);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .related-cover {
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .related-card:hover .related-cover img {
            transform: scale(1.04);
        }

        .related-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(217, 119, 6, 0.1);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 999px;
            width: fit-content;
            margin-bottom: 12px;
            border: 1px solid rgba(217, 119, 6, 0.15);
        }

        .related-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.4;
            margin-bottom: 8px;
            transition: color 0.2s;
        }

        .related-card:hover .related-body h3 {
            color: var(--primary);
        }

        .related-body p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ======== 返回入口 ======== */
        .back-entry {
            text-align: center;
            padding: 40px 0 72px;
        }

        /* ======== 浮动 CTA ======== */
        .float-cta {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 60;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            padding: 13px 24px;
            border-radius: 999px;
            font-size: 0.9375rem;
            font-weight: 600;
            box-shadow: 0 8px 24px rgba(11, 107, 90, 0.35);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .float-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(11, 107, 90, 0.45);
        }

        .float-cta i {
            font-size: 1.1rem;
        }

        /* ======== 页脚 ======== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 64px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 24px;
        }

        .brand-name-footer {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-intro {
            font-size: 0.9rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
        }

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

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.75);
            transition: background 0.3s, color 0.3s, transform 0.3s;
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

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

        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.25s, padding-left 0.25s;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
        }

        .footer-contact-item i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ======== 响应式 ======== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .search-box {
                display: none;
            }

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

            .related-grid {
                grid-template-columns: 1fr;
                max-width: 460px;
                margin: 0 auto;
            }

            .related-grid .related-card:nth-child(3) {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }

            .brand-name {
                font-size: 1.05rem;
            }

            .brand-logo {
                width: 32px;
                height: 32px;
                font-size: 1rem;
                border-radius: 10px;
            }

            .top-actions .btn-sm {
                padding: 0.45rem 0.9rem;
                font-size: 0.8125rem;
            }

            .article-shell {
                border-radius: 1.25rem;
                padding: 20px 18px;
            }

            .article-title {
                font-size: 1.5rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.8125rem;
                flex-direction: column;
                align-items: flex-start;
            }

            .breadcrumb {
                font-size: 0.8125rem;
                padding: 6px 14px;
                border-radius: 999px;
                width: 100%;
                overflow-x: auto;
            }

            .breadcrumb .current {
                max-width: 160px;
            }

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

            .related-grid .related-card:nth-child(3) {
                display: block;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

            .float-cta {
                bottom: calc(16px + env(safe-area-inset-bottom));
                right: 16px;
                padding: 12px 18px;
                font-size: 0.875rem;
            }
        }

        @media (max-width: 480px) {
            .top-actions .btn-sm span {
                display: none;
            }

            .top-actions .btn-sm {
                padding: 0.5rem 0.9rem;
                font-size: 0.875rem;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #0F6B5A;
      --primary-dark: #083D34;
      --primary-mid: #0D8E72;
      --accent: #D97706;
      --accent-dark: #B45309;
      --bg: #F7F9F8;
      --card: #FFFFFF;
      --text: #1F2937;
      --muted: #6B7280;
      --border: #E5E7EB;
      --radius-lg: 1.5rem;
      --radius-md: 0.75rem;
      --shadow: 0 12px 30px rgba(11, 107, 90, 0.08);
      --shadow-hover: 0 18px 40px rgba(11, 107, 90, 0.15);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }

    button,
    input {
      font-family: inherit;
      outline: none;
      border: none;
      background: none;
    }

    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .section {
      padding: 96px 0;
    }

    .section-header {
      max-width: 760px;
      margin: 0 auto 56px;
      text-align: center;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      color: var(--primary);
      background: rgba(15, 107, 90, 0.08);
      border: 1px dashed rgba(15, 107, 90, 0.35);
      border-radius: 999px;
      padding: 6px 18px;
      margin-bottom: 18px;
      transform: rotate(-1deg);
    }

    .section-header h2 {
      font-size: clamp(1.75rem, 3vw, 2.4rem);
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -0.01em;
      color: var(--primary-dark);
    }

    .section-header p {
      margin-top: 18px;
      color: var(--muted);
      font-size: 1rem;
    }

    /* ========= Header ========= */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

    .header-top {
      height: 64px;
      border-bottom: 1px solid rgba(229, 231, 235, 0.6);
    }

    .header-top-inner {
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

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

    .logo-icon {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary) 60%, var(--primary-mid));
      border-radius: 12px;
      color: #fff;
      font-size: 1.05rem;
      box-shadow: 0 4px 12px rgba(8, 61, 52, 0.22);
    }

    .logo-text {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: 0.01em;
      color: var(--primary-dark);
      white-space: nowrap;
    }

    .header-search {
      flex: 1;
      max-width: 360px;
      position: relative;
      display: none;
    }

    .header-search input {
      width: 100%;
      height: 40px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: #f3f6f5;
      padding: 0 44px 0 18px;
      font-size: 0.875rem;
      color: var(--text);
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .header-search input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 107, 90, 0.12);
      background: #fff;
    }

    .header-search i {
      position: absolute;
      right: 16px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 0.875rem;
      color: var(--muted);
      pointer-events: none;
    }

    .btn-header {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 40px;
      padding: 0 22px;
      border-radius: 999px;
      background: var(--primary);
      color: #fff;
      font-size: 0.875rem;
      font-weight: 600;
      white-space: nowrap;
      transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 4px 14px rgba(15, 107, 90, 0.2);
    }

    .btn-header:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 8px 20px rgba(15, 107, 90, 0.28);
    }

    .mobile-search-trigger {
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      color: var(--primary);
      font-size: 1.05rem;
      cursor: pointer;
      transition: background 0.2s;
    }

    .mobile-search-trigger:hover {
      background: rgba(15, 107, 90, 0.08);
    }

    .mobile-search-layer {
      display: none;
      padding: 12px 20px;
      background: #fff;
      border-bottom: 1px solid var(--border);
    }

    .mobile-search-layer.open {
      display: block;
    }

    .mobile-search-layer input {
      width: 100%;
      height: 42px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: #f3f6f5;
      padding: 0 18px;
      font-size: 0.9rem;
    }

    .mobile-search-layer input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 107, 90, 0.12);
    }

    .channel-nav {
      height: 48px;
      background: #fff;
      display: flex;
      align-items: center;
    }

    .channel-links {
      display: flex;
      gap: 6px;
      overflow-x: auto;
      scrollbar-width: none;
      -webkit-overflow-scrolling: touch;
      padding: 4px 0;
      align-items: center;
    }

    .channel-links::-webkit-scrollbar {
      display: none;
    }

    .channel-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      white-space: nowrap;
      padding: 7px 18px;
      border-radius: 999px;
      font-size: 0.875rem;
      font-weight: 500;
      color: var(--muted);
      border: 1px solid transparent;
      transition: all 0.2s ease;
      line-height: 1;
    }

    .channel-link i {
      font-size: 0.75rem;
      opacity: 0.7;
    }

    .channel-link:hover {
      color: var(--primary);
      background: rgba(15, 107, 90, 0.06);
    }

    .channel-link.active {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 12px rgba(15, 107, 90, 0.2);
    }

    .top-placeholder {
      height: 112px;
    }

    /* ========= Breadcrumb ========= */
    .breadcrumb-bar {
      padding: 22px 0 0;
    }

    .breadcrumb-bar ol {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 0.8125rem;
      color: var(--muted);
      list-style: none;
    }

    .breadcrumb-bar li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .breadcrumb-bar li + li::before {
      content: '/';
      color: #c3cbd4;
    }

    .breadcrumb-bar a {
      color: var(--muted);
    }

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

    .breadcrumb-bar .current {
      color: var(--primary);
      font-weight: 600;
    }

    /* ========= Category Hero ========= */
    .category-hero {
      padding: 30px 0 0;
    }

    .category-hero-card {
      position: relative;
      border-radius: 2rem;
      overflow: hidden;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary) 55%, var(--primary-mid));
      background-size: cover;
      background-position: center;
      min-height: 420px;
      display: flex;
      align-items: center;
      box-shadow: 0 20px 50px rgba(8, 61, 52, 0.28);
    }

    .category-hero-card .hero-bg-image {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.35;
    }

    .category-hero-card .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(8, 61, 52, 0.95) 0%, rgba(8, 61, 52, 0.72) 55%, rgba(13, 142, 114, 0.42) 100%);
    }

    .category-hero-content {
      position: relative;
      z-index: 2;
      padding: 56px 50px;
      max-width: 780px;
    }

    .hero-stamp {
      position: absolute;
      top: 34px;
      right: 42px;
      z-index: 3;
      width: 96px;
      height: 96px;
      border-radius: 50%;
      border: 2px solid rgba(255, 255, 255, 0.6);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      transform: rotate(8deg);
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(4px);
    }

    .hero-stamp span {
      font-size: 0.75rem;
      font-weight: 700;
      color: rgba(255, 255, 255, 0.9);
      letter-spacing: 0.12em;
      line-height: 1.4;
    }

    .hero-stamp .stamp-circle {
      width: 78px;
      height: 78px;
      border-radius: 50%;
      border: 1px dashed rgba(255, 255, 255, 0.55);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      position: absolute;
    }

    .category-hero-content .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.14);
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 999px;
      padding: 6px 16px;
      font-size: 0.8rem;
      font-weight: 500;
      color: rgba(255, 255, 255, 0.95);
      margin-bottom: 22px;
    }

    .category-hero-content h1 {
      font-size: clamp(1.8rem, 4.5vw, 2.75rem);
      font-weight: 800;
      line-height: 1.18;
      color: #fff;
      letter-spacing: -0.01em;
    }

    .category-hero-content p {
      margin-top: 18px;
      font-size: 1rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.85);
      max-width: 640px;
    }

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

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 48px;
      padding: 0 30px;
      border-radius: 0.75rem;
      background: var(--accent);
      color: #fff;
      font-size: 0.9375rem;
      font-weight: 700;
      transition: all 0.25s ease;
      box-shadow: 0 8px 20px rgba(217, 119, 6, 0.3);
    }

    .btn-primary:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(217, 119, 6, 0.35);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 48px;
      padding: 0 30px;
      border-radius: 0.75rem;
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.5);
      color: #fff;
      font-size: 0.9375rem;
      font-weight: 600;
      transition: all 0.25s ease;
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #fff;
    }

    .hero-metrics {
      position: relative;
      z-index: 3;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
      margin-top: -34px;
      position: relative;
      padding: 0 20px;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
    }

    .metric-card {
      background: #fff;
      border-radius: 1.25rem;
      padding: 18px 20px;
      box-shadow: var(--shadow);
      border: 1px solid rgba(229, 231, 235, 0.7);
      text-align: center;
      transition: transform 0.25s, box-shadow 0.25s;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .metric-card .metric-value {
      font-size: clamp(1.5rem, 3vw, 2.2rem);
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.2;
    }

    .metric-card .metric-label {
      font-size: 0.8125rem;
      color: var(--muted);
      margin-top: 4px;
    }

    /* ========= Capability Grid ========= */
    .capability-grid {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 24px;
    }

    .capability-card {
      background: #fff;
      border-radius: 1.5rem;
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid rgba(229, 231, 235, 0.6);
      transition: transform 0.3s, box-shadow 0.3s;
      display: block;
      position: relative;
    }

    .capability-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .capability-card .card-image {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      position: relative;
    }

    .capability-card .card-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .capability-card:hover .card-image img {
      transform: scale(1.04);
    }

    .capability-card .card-body {
      padding: 22px 22px 26px;
      position: relative;
    }

    .capability-card .card-index {
      position: absolute;
      top: -20px;
      right: 20px;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      color: #fff;
      font-size: 0.875rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(8, 61, 52, 0.25);
    }

    .capability-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .capability-card p {
      font-size: 0.925rem;
      color: var(--muted);
      line-height: 1.7;
    }

    .capability-card .card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 14px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary);
    }

    .capability-card .card-link i {
      font-size: 0.75rem;
      transition: transform 0.2s;
    }

    .capability-card:hover .card-link i {
      transform: translateX(4px);
    }

    .col-span-7 {
      grid-column: span 7;
    }

    .col-span-5 {
      grid-column: span 5;
    }

    .col-span-4 {
      grid-column: span 4;
    }

    .col-span-12 {
      grid-column: span 12;
    }

    /* ========= Differentiator ========= */
    .differentiator-grid {
      display: flex;
      flex-direction: column;
      gap: 64px;
    }

    .feature-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .feature-block.feature-right {
      direction: rtl;
    }

    .feature-block.feature-right > * {
      direction: ltr;
    }

    .feature-media {
      position: relative;
    }

    .feature-media img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border-radius: 1.75rem;
      box-shadow: var(--shadow);
    }

    .floating-badge {
      position: absolute;
      bottom: -20px;
      left: 20px;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      border-radius: 1.25rem;
      padding: 14px 22px;
      color: #fff;
      box-shadow: 0 12px 30px rgba(8, 61, 52, 0.3);
      transform: rotate(-2deg);
    }

    .floating-badge .badge-number {
      font-size: 1.5rem;
      font-weight: 800;
      display: block;
      line-height: 1.2;
    }

    .floating-badge .badge-label {
      font-size: 0.75rem;
      opacity: 0.8;
    }

    .feature-content h3 {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 14px;
    }

    .feature-content p {
      color: var(--muted);
      font-size: 1rem;
      line-height: 1.8;
      margin-bottom: 20px;
    }

    .feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .feature-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9375rem;
      color: var(--text);
    }

    .feature-list i {
      color: var(--primary);
      flex-shrink: 0;
    }

    /* ========= Scenarios ========= */
    .scenarios-section {
      background: #f0f5f3;
      border-top: 1px solid rgba(229, 231, 235, 0.6);
      border-bottom: 1px solid rgba(229, 231, 235, 0.6);
    }

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

    .scenario-card {
      background: #fff;
      border-radius: 1.5rem;
      padding: 28px 26px;
      box-shadow: var(--shadow);
      border: 1px solid rgba(229, 231, 235, 0.6);
      display: flex;
      flex-direction: column;
      gap: 16px;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .scenario-icon {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }

    .scenario-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }

    .scenario-card p {
      font-size: 0.875rem;
      color: var(--muted);
      line-height: 1.7;
    }

    .scenario-card .scenario-foot {
      margin-top: auto;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* ========= Process ========= */
    .process-wrap {
      max-width: 960px;
      margin: 0 auto;
    }

    .process-steps {
      display: flex;
      flex-direction: column;
      gap: 0;
      position: relative;
    }

    .process-steps::before {
      content: '';
      position: absolute;
      left: 37px;
      top: 20px;
      bottom: 20px;
      width: 2px;
      background: repeating-linear-gradient(to bottom, var(--primary), var(--primary) 6px, transparent 6px, transparent 12px);
      opacity: 0.35;
    }

    .process-step {
      display: flex;
      gap: 26px;
      padding: 22px 0;
      align-items: flex-start;
      position: relative;
    }

    .step-number {
      width: 72px;
      height: 72px;
      border-radius: 50%;
      background: #fff;
      border: 2px solid var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      box-shadow: var(--shadow);
      flex-shrink: 0;
      z-index: 1;
    }

    .step-content {
      background: #fff;
      border-radius: 1.25rem;
      padding: 24px 28px;
      box-shadow: var(--shadow);
      border: 1px solid rgba(229, 231, 235, 0.65);
      flex: 1;
    }

    .step-content h3 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }

    .step-content p {
      font-size: 0.9rem;
      color: var(--muted);
      line-height: 1.7;
    }

    /* ========= Stats ========= */
    .stats-section {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      padding: 72px 0;
      border-radius: 0;
    }

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

    .stat-card {
      text-align: center;
      padding: 20px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 1.5rem;
      backdrop-filter: blur(4px);
    }

    .stat-number {
      font-size: clamp(1.8rem, 4vw, 2.6rem);
      font-weight: 800;
      color: #FDE68A;
      display: block;
      line-height: 1.2;
    }

    .stat-label {
      color: rgba(255, 255, 255, 0.8);
      font-size: 0.875rem;
      margin-top: 6px;
      display: block;
    }

    /* ========= FAQ ========= */
    .faq-grid {
      display: grid;
      grid-template-columns: 0.85fr 1.4fr;
      gap: 40px;
      align-items: start;
    }

    .faq-intro {
      position: sticky;
      top: 140px;
    }

    .faq-intro h2 {
      font-size: clamp(1.75rem, 3vw, 2.2rem);
      font-weight: 700;
      color: var(--primary-dark);
      line-height: 1.25;
      margin-bottom: 18px;
    }

    .faq-contact-card {
      background: #fff;
      border-radius: 1.5rem;
      padding: 24px;
      border: 1px solid rgba(229, 231, 235, 0.6);
      box-shadow: var(--shadow);
      margin-top: 24px;
    }

    .faq-contact-card p {
      font-size: 0.9rem;
      color: var(--muted);
      margin-bottom: 14px;
    }

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

    .faq-item {
      background: #fff;
      border-radius: 1.25rem;
      border: 1px solid rgba(229, 231, 235, 0.65);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.02);
      overflow: hidden;
      transition: border-color 0.3s, box-shadow 0.3s;
    }

    .faq-item[open] {
      border-color: var(--primary);
      box-shadow: 0 10px 30px rgba(15, 107, 90, 0.1);
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 18px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text);
      transition: color 0.2s;
    }

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

    .faq-item summary i {
      color: var(--primary);
      font-size: 0.875rem;
      flex-shrink: 0;
      transition: transform 0.3s;
    }

    .faq-item[open] summary i {
      transform: rotate(45deg);
    }

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

    .faq-content {
      padding: 0 22px 22px;
      font-size: 0.9rem;
      color: var(--muted);
      line-height: 1.8;
      border-top: 1px dashed rgba(229, 231, 235, 0.8);
      padding-top: 14px;
    }

    /* ========= CTA ========= */
    .cta-card {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary) 65%, var(--primary-mid));
      border-radius: 2rem;
      padding: 56px 60px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
      position: relative;
      overflow: hidden;
    }

    .cta-card::after {
      content: '';
      position: absolute;
      right: -60px;
      bottom: -60px;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      border: 22px solid rgba(255, 255, 255, 0.04);
    }

    .cta-content h2 {
      font-size: clamp(1.5rem, 3vw, 2.2rem);
      font-weight: 700;
      color: #fff;
      line-height: 1.3;
    }

    .cta-content p {
      color: rgba(255, 255, 255, 0.8);
      margin-top: 10px;
      font-size: 0.95rem;
      max-width: 560px;
    }

    .btn-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 54px;
      padding: 0 38px;
      background: var(--accent);
      border-radius: 0.75rem;
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      white-space: nowrap;
      box-shadow: 0 10px 24px rgba(217, 119, 6, 0.3);
      transition: all 0.25s;
      flex-shrink: 0;
    }

    .btn-cta:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 14px 32px rgba(217, 119, 6, 0.4);
    }

    /* ========= Footer ========= */
    .site-footer {
      background: #083D34;
      color: rgba(255, 255, 255, 0.75);
      margin-top: 96px;
      padding: 64px 0 0;
      font-size: 0.875rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .brand-name-footer {
      font-size: 1.4rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-intro {
      font-size: 0.875rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.7);
      max-width: 320px;
      margin-bottom: 20px;
    }

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

    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.8);
      font-size: 0.9rem;
      transition: all 0.2s;
    }

    .footer-social a:hover {
      background: var(--accent);
      color: #fff;
      transform: translateY(-2px);
    }

    .footer-title {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, 0.66);
      transition: color 0.2s, padding-left 0.2s;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .footer-links a::before {
      content: '›';
      color: var(--accent);
      font-weight: 600;
    }

    .footer-links a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      color: rgba(255, 255, 255, 0.66);
      margin-bottom: 12px;
      font-size: 0.875rem;
    }

    .footer-contact-item i {
      color: var(--accent);
      width: 16px;
      text-align: center;
      flex-shrink: 0;
    }

    .footer-bottom {
      padding: 22px 0;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      color: rgba(255, 255, 255, 0.45);
      font-size: 0.8rem;
    }

    /* ========= Floating CTA ========= */
    .floating-cta {
      position: fixed;
      bottom: 24px;
      right: 24px;
      z-index: 60;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 52px;
      padding: 0 22px;
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      color: #fff;
      border-radius: 999px;
      font-size: 0.875rem;
      font-weight: 600;
      box-shadow: 0 12px 30px rgba(8, 61, 52, 0.35);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .floating-cta:hover {
      transform: translateY(-3px);
      box-shadow: 0 18px 40px rgba(8, 61, 52, 0.4);
    }

    .floating-cta i {
      font-size: 1.1rem;
    }

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

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

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }

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

      .faq-intro {
        position: static;
      }

      .col-span-7,
      .col-span-5,
      .col-span-4 {
        grid-column: span 6;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 56px 0;
      }

      .col-span-7,
      .col-span-5,
      .col-span-4,
      .col-span-12 {
        grid-column: span 12;
      }

      .feature-block {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .feature-block.feature-right {
        direction: ltr;
      }

      .feature-media img {
        aspect-ratio: 16 / 10;
      }

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

      .category-hero-content {
        padding: 40px 24px;
      }

      .hero-stamp {
        display: none;
      }

      .cta-card {
        flex-direction: column;
        padding: 40px 28px;
        text-align: center;
      }

      .btn-cta {
        width: 100%;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        padding-bottom: 28px;
      }

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

      .channel-nav {
        height: 48px;
      }

      .process-step {
        flex-direction: column;
        gap: 12px;
      }

      .process-steps::before {
        display: none;
      }

      .step-number {
        width: 48px;
        height: 48px;
        font-size: 1rem;
      }

      .step-content {
        padding: 18px 20px;
      }

      .floating-cta {
        bottom: 16px;
        right: 16px;
        height: 48px;
        padding: 0 18px;
        font-size: 0.8125rem;
        padding-bottom: calc(0px + env(safe-area-inset-bottom));
      }

      .top-placeholder {
        height: 112px;
      }
    }

    @media (max-width: 480px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }

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

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

      .brand-logo .logo-text {
        font-size: 1.05rem;
      }

      .btn-header {
        padding: 0 16px;
        font-size: 0.8125rem;
      }

      .category-hero-card {
        border-radius: 1.5rem;
      }

      .category-hero-content p {
        font-size: 0.9375rem;
      }

      .hero-actions {
        flex-direction: column;
      }

      .hero-actions .btn-primary,
      .hero-actions .btn-secondary {
        width: 100%;
      }
    }

/* roulang page: category3 */
:root {
  --brand: #0F6B5A;
  --brand-dark: #083D34;
  --brand-deep: #0D8E72;
  --accent: #D97706;
  --ink: #1F2937;
  --sub: #6B7280;
  --line: #E5E7EB;
  --bg: #F7F9F8;
  --card: #FFFFFF;
  --radius-lg: 1.75rem;
  --radius-btn: 0.75rem;
  --shadow: 0 12px 30px rgba(11,107,90,0.08);
  --shadow-hover: 0 18px 40px rgba(11,107,90,0.15);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color .2s ease;
}
button {
  cursor: pointer;
  font-family: inherit;
}
.container {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 28px;
  padding-right: 28px;
}
/* 双层导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-row-1 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, #083D34, #0F6B5A 60%, #0D8E72);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  box-shadow: 0 4px 12px rgba(15,107,90,0.28);
}
.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, #083D34, #0F6B5A);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-search {
  max-width: 360px;
  width: 100%;
  position: relative;
}
.search-form {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  height: 40px;
  padding: 0 6px 0 16px;
  transition: border-color .2s, box-shadow .2s;
}
.search-form:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(15,107,90,0.12);
}
.search-form input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.875rem;
  color: var(--ink);
}
.search-form button {
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}
.search-form button:hover {
  background: var(--brand-dark);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  border: none;
  transition: all .2s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-sm {
  height: 38px;
  padding: 0 18px;
  font-size: .875rem;
}
.btn-md {
  height: 46px;
  padding: 0 26px;
  font-size: .95rem;
}
.btn-primary {
  background: linear-gradient(135deg, #083D34, #0F6B5A);
  color: #fff;
  box-shadow: 0 6px 16px rgba(15,107,90,0.25);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(15,107,90,0.35);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(217,119,6,0.28);
}
.btn-accent:hover {
  background: #b96507;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(217,119,6,0.38);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.7);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}
/* 频道导航 */
.channel-nav {
  border-top: 1px solid #f0f2f1;
  background: rgba(255,255,255,0.8);
}
.channel-links {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  height: 48px;
  -ms-overflow-style: none;
}
.channel-links::-webkit-scrollbar {
  display: none;
}
.channel-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  height: 34px;
  border-radius: 999px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--sub);
  white-space: nowrap;
  transition: all .2s;
}
.channel-link i {
  font-size: 11px;
  opacity: .75;
}
.channel-link:hover {
  background: rgba(15,107,90,0.08);
  color: var(--brand);
}
.channel-link.active {
  background: linear-gradient(135deg, #083D34, #0F6B5A);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(15,107,90,0.22);
}
/* 分类英雄 */
.category-hero {
  position: relative;
  border-radius: 2rem;
  overflow: hidden;
  background: linear-gradient(135deg, #083D34, #0F6B5A 65%, #0D8E72);
  padding: 64px 0;
  margin-top: 28px;
  margin-bottom: 56px;
  box-shadow: var(--shadow);
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center 30%;
  opacity: 0.18;
  mix-blend-mode: overlay;
}
.category-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  padding: 0 24px;
}
.category-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.category-hero p {
  color: rgba(255,255,255,0.88);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 640px;
  margin: 0 auto 30px;
}
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 999px;
  color: rgba(255,255,255,0.9);
  font-size: .8rem;
  margin-bottom: 22px;
  backdrop-filter: blur(4px);
}
.breadcrumb a {
  color: rgba(255,255,255,0.85);
}
.breadcrumb a:hover {
  color: #FCD34D;
}
/* 板块通用 */
.section {
  margin-bottom: 96px;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(217,119,6,0.1);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.section-desc {
  color: var(--sub);
  font-size: 1rem;
  max-width: 560px;
  line-height: 1.7;
}
/* 不对称核心能力 */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cap-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  box-shadow: var(--shadow);
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.cap-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-dark), var(--brand), var(--accent));
  opacity: 0;
  transition: opacity .3s;
}
.cap-card:hover::after {
  opacity: 1;
}
.cap-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.cap-card.lg {
  grid-column: span 2;
}
.cap-card.featured {
  background: linear-gradient(150deg, #083D34, #0F6B5A 55%, #0D8E72);
  color: #fff;
  border: none;
}
.cap-card.featured .cap-icon {
  background: rgba(255,255,255,0.16);
  color: #fff;
}
.cap-card.featured h3 {
  color: #fff;
}
.cap-card.featured p {
  color: rgba(255,255,255,0.82);
}
.cap-card.featured::after {
  background: rgba(255,255,255,0.3);
  opacity: 1;
}
.cap-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: rgba(15,107,90,0.1);
  color: var(--brand);
  margin-bottom: 18px;
}
.cap-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}
.cap-card p {
  color: var(--sub);
  font-size: .92rem;
  line-height: 1.7;
}
.cap-card.featured p {
  color: rgba(255,255,255,0.82);
}
.cap-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 14px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--brand);
}
.cap-card.featured .cap-link {
  color: #FCD34D;
}
.cap-link i {
  font-size: 12px;
  transition: transform .2s;
}
.cap-link:hover i {
  transform: translateX(4px);
}
/* 场景横向分区 */
.scenes-wrapper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scene-block {
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--line);
  background: #fff;
  position: relative;
  overflow: hidden;
  transition: all .3s;
}
.scene-block:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.scene-block.dark {
  background: linear-gradient(145deg, #083D34, #0F6B5A);
  color: #fff;
  border: none;
}
.scene-block.dark p, .scene-block.dark li {
  color: rgba(255,255,255,0.8);
}
.scene-num {
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--accent);
  margin-bottom: 12px;
}
.scene-block h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.scene-block ul {
  list-style: none;
  padding: 0;
}
.scene-block li {
  padding: 5px 0;
  padding-left: 22px;
  position: relative;
  font-size: .9rem;
  color: var(--sub);
}
.scene-block li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
}
.scene-block.dark li::before {
  background: #FCD34D;
}
/* 流程 */
.flow-section {
  background: #fff;
  border-radius: 2rem;
  padding: 56px 0;
  border: 1px solid var(--line);
}
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 40px;
}
.flow-step {
  text-align: center;
  position: relative;
}
.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 34px;
  left: calc(50% + 30px);
  width: calc(100% - 60px);
  height: 2px;
  border-top: 2px dashed #C8D6D3;
}
.flow-circle {
  width: 68px;
  height: 68px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, #083D34, #0F6B5A);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(15,107,90,0.25);
  position: relative;
  z-index: 1;
}
.flow-step h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}
.flow-step p {
  font-size: .85rem;
  color: var(--sub);
  line-height: 1.6;
  max-width: 180px;
  margin: 0 auto;
}
/* 数据条 */
.data-strip {
  display: flex;
  align-items: center;
  gap: 24px;
  background: linear-gradient(135deg, #083D34, #0F6B5A);
  border-radius: 2rem;
  padding: 40px 48px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.data-item {
  flex: 1;
  min-width: 160px;
  text-align: center;
}
.data-item .num {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: #FCD34D;
  line-height: 1.2;
}
.data-item .label {
  color: rgba(255,255,255,0.7);
  font-size: .82rem;
  margin-top: 4px;
  letter-spacing: .02em;
}
/* FAQ */
.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}
.faq-item {
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 1.25rem;
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item.open {
  border-color: var(--brand);
  box-shadow: 0 8px 24px rgba(15,107,90,0.1);
}
.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 26px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  gap: 16px;
}
.faq-toggle i {
  color: var(--brand);
  transition: transform .3s;
  font-size: 14px;
  flex-shrink: 0;
}
.faq-item.open .faq-toggle i {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  color: var(--sub);
  font-size: .92rem;
  line-height: 1.75;
}
.faq-item.open .faq-answer {
  max-height: 320px;
  padding: 0 26px 22px;
}
/* CTA */
.cta-banner {
  position: relative;
  border-radius: 2rem;
  overflow: hidden;
  background: linear-gradient(135deg, #083D34, #0F6B5A 55%, #0D8E72);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity: .12;
}
.cta-banner > .cta-content {
  position: relative;
  z-index: 1;
}
.cta-banner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: #fff;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 8px;
}
.cta-banner p {
  color: rgba(255,255,255,0.82);
  font-size: .95rem;
  max-width: 480px;
}
.cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
/* 页脚 */
.site-footer {
  background: #083D34;
  color: rgba(255,255,255,0.85);
  padding: 56px 0 30px;
  margin-top: 96px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.brand-name-footer {
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .02em;
  margin-bottom: 8px;
}
.footer-intro {
  font-size: .86rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin: 12px 0 20px;
  max-width: 300px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.8);
  font-size: 14px;
  transition: all .2s;
}
.footer-social a:hover {
  background: var(--accent);
  transform: translateY(-2px);
  color: #fff;
}
.footer-title {
  font-size: .9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: .02em;
}
.footer-links {
  list-style: none;
  padding: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: rgba(255,255,255,0.65);
  font-size: .86rem;
  transition: color .2s;
}
.footer-links a:hover {
  color: #FCD34D;
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.65);
  font-size: .86rem;
  margin-bottom: 12px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: .78rem;
  color: rgba(255,255,255,0.5);
}
/* 浮动 CTA */
.float-cta {
  position: fixed;
  bottom: calc(24px + env(safe-area-inset-bottom));
  right: 24px;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, #083D34, #0F6B5A);
  color: #fff;
  font-weight: 600;
  font-size: .9rem;
  box-shadow: 0 12px 30px rgba(15,107,90,0.35);
  transition: all .25s;
  border: none;
}
.float-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(15,107,90,0.45);
}
/* 响应式 */
@media (max-width: 1024px) {
  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cap-card.lg {
    grid-column: span 2;
  }
  .scenes-wrapper {
    grid-template-columns: repeat(1, 1fr);
  }
  .flow-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
  }
  .flow-step:not(:last-child)::after {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nav-search {
    max-width: 200px;
  }
  .nav-search .search-form {
    height: 36px;
  }
  .nav-row-1 {
    height: auto;
    padding: 10px 0;
    flex-wrap: wrap;
    gap: 10px;
  }
  .brand-name {
    font-size: 1.02rem;
  }
  .btn-sm {
    height: 34px;
    padding: 0 14px;
    font-size: .8rem;
  }
  .category-hero {
    border-radius: 1.25rem;
    padding: 44px 0;
  }
  .section {
    margin-bottom: 60px;
  }
  .capability-grid {
    grid-template-columns: 1fr;
  }
  .cap-card.lg {
    grid-column: span 1;
  }
  .flow-steps {
    grid-template-columns: 1fr;
  }
  .cta-banner {
    padding: 36px 24px;
    text-align: center;
  }
  .cta-banner > .cta-content, .cta-actions {
    width: 100%;
    justify-content: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .float-cta {
    bottom: 16px;
    right: 16px;
    height: 48px;
    padding: 0 20px;
    font-size: .82rem;
  }
}
@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .nav-search {
    display: none;
  }
  .data-strip {
    padding: 28px 20px;
    gap: 16px;
  }
  .data-item {
    min-width: 110px;
  }
  .faq-toggle {
    padding: 18px 18px;
    font-size: .92rem;
  }
  .faq-item.open .faq-answer {
    padding: 0 18px 18px;
  }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #0F6B5A;
  --color-primary-dark: #083D34;
  --color-primary-light: #0D8E72;
  --color-accent: #D97706;
  --color-bg: #F7F9F8;
  --color-card: #FFFFFF;
  --color-text: #1F2937;
  --color-text-secondary: #6B7280;
  --color-border: #E5E7EB;
  --radius-lg: 1.5rem;
  --radius-md: 0.75rem;
  --radius-pill: 999px;
  --shadow: 0 12px 30px rgba(11,107,90,0.08);
  --shadow-hover: 0 18px 40px rgba(11,107,90,0.15);
}

/* ===== 基础 Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 1rem;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='80' height='80' filter='url(/%23n)' opacity='.5'/%3E%3C/svg%3E");
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input { font-family: inherit; }
ul, ol { list-style: none; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
section { padding: 96px 0; }
@media (max-width: 768px) { section { padding: 56px 0; } }

.section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--color-primary);
  background: rgba(15,107,90,.06);
  border: 1px solid rgba(15,107,90,.12);
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 24px;
  color: var(--color-primary-dark);
}
.section-desc {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin-bottom: 48px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 32px;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-accent { background: var(--color-accent); color: #fff; box-shadow: 0 8px 20px rgba(217,119,6,.25); }
.btn-accent:hover { background: #B45309; transform: translateY(-3px); box-shadow: 0 14px 28px rgba(217,119,6,.32); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-3px); }
.btn-outline { background: #fff; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-dark { background: var(--color-primary-dark); color: #fff; }
.btn-dark:hover { background: var(--color-primary); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

/* ===== 双层导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}
.header-top { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg,#083D34,#0F6B5A,#0D8E72);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  box-shadow: 0 6px 16px rgba(15,107,90,.3);
}
.brand-name { font-size: 1.15rem; font-weight: 700; white-space: nowrap; color: var(--color-primary-dark); }
.header-search { flex: 1; max-width: 360px; position: relative; display: none; }
@media (min-width: 768px) { .header-search { display: block; } }
.header-search input {
  width: 100%; height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0 46px 0 20px;
  font-size: .9rem;
  background: #F9FAFB;
  outline: none;
  transition: all .3s;
}
.header-search input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(15,107,90,.12);
  background: #fff;
}
.header-search .search-icon {
  position: absolute; right: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  font-size: .9rem;
  pointer-events: none;
}
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .btn { padding: 10px 24px; font-size: .9rem; }
.mobile-search-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  align-items: center; justify-content: center;
  color: var(--color-primary-dark);
  font-size: 1rem;
  background: rgba(15,107,90,.06);
}
@media (max-width: 767px) {
  .mobile-search-toggle { display: inline-flex; }
  .header-cta .btn { display: none; }
}
.mobile-search-panel {
  display: none;
  padding: 12px 24px 16px;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}
.mobile-search-panel.show { display: block; }
.mobile-search-panel input {
  width: 100%; height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0 20px;
  font-size: .9rem;
  outline: none;
  background: #F9FAFB;
}
.mobile-search-panel input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(15,107,90,.1);
}

/* 频道导航第二行 */
.channel-nav { border-top: 1px solid rgba(229,231,235,.5); background: #fff; }
.channel-links { display: flex; gap: 8px; overflow-x: auto; padding: 8px 0; scrollbar-width: none; }
.channel-links::-webkit-scrollbar { display: none; }
.channel-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 18px;
  border-radius: 999px;
  font-size: .9rem; font-weight: 500;
  color: var(--color-text-secondary);
  white-space: nowrap;
  transition: all .2s;
}
.channel-link i { font-size: .85rem; }
.channel-link:hover { background: rgba(15,107,90,.06); color: var(--color-primary); }
.channel-link.active {
  background: var(--color-primary-dark);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(8,61,52,.25);
}
.main-placeholder { height: 112px; }
@media (max-width: 640px) { .main-placeholder { height: 104px; } }

/* ===== 分类英雄条 ===== */
.category-hero {
  position: relative;
  background: linear-gradient(135deg, #083D34 0%, #0F6B5A 55%, #0D8E72 100%);
  border-radius: 2rem;
  padding: 72px 56px;
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: .16;
}
.category-hero::after {
  content: "";
  position: absolute;
  top: -60px; right: -40px;
  width: 280px; height: 280px;
  background: rgba(255,255,255,.05);
  border-radius: 50%;
}
.category-hero-inner {
  position: relative; z-index: 2;
  display: flex;
  align-items: center;
  gap: 48px;
}
.category-hero-text { flex: 1; }
.category-hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 18px;
}
.category-hero p {
  font-size: 1.125rem;
  color: rgba(255,255,255,.85);
  max-width: 560px;
}
.category-hero .hero-badges {
  display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap;
}
.hero-badge {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(4px);
  border-radius: 16px;
  padding: 16px 20px;
  min-width: 120px;
}
.hero-badge .num {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: #FBBF24;
  line-height: 1.2;
}
.hero-badge .label { font-size: .8rem; color: rgba(255,255,255,.75); }
.category-hero-visual { flex: 0 0 380px; position: relative; }
.category-hero-visual img { border-radius: 1.5rem; box-shadow: 0 20px 40px rgba(0,0,0,.3); }
.hero-float-card {
  position: absolute;
  left: -28px; bottom: 32px;
  background: rgba(255,255,255,.96);
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: 0 16px 32px rgba(0,0,0,.2);
  transform: rotate(-3deg);
}
.hero-float-card .num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-primary-dark);
  line-height: 1.2;
}
.hero-float-card .label { font-size: .78rem; color: var(--color-text-secondary); }
@media (max-width: 1024px) {
  .category-hero { padding: 48px 32px; }
  .category-hero-inner { flex-direction: column; }
  .category-hero-visual { flex: none; width: 100%; max-width: 420px; margin: 0 auto; }
}
@media (max-width: 640px) {
  .category-hero { padding: 36px 20px; border-radius: 1.5rem; }
  .hero-badge { padding: 12px 16px; min-width: 100px; }
  .hero-float-card { left: 12px; bottom: 16px; padding: 12px 16px; }
}

/* ===== 能力卡片 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}
.feature-card-lg {
  grid-column: span 7;
  background: #fff;
  border-radius: 1.5rem;
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  position: relative;
  transition: all .3s;
}
.feature-card-lg::after {
  content: "";
  position: absolute; inset: 10px;
  border: 1px solid rgba(217,119,6,.16);
  border-radius: calc(1.5rem - 8px);
  pointer-events: none;
}
.feature-card-lg:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.feature-card-sm {
  background: #fff;
  border-radius: 1.5rem;
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  transition: all .3s;
}
.feature-card-sm:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.feature-card-sm:first-child { margin-bottom: 24px; }
.feature-card-wide {
  grid-column: span 12;
  background: #fff;
  border-radius: 1.5rem;
  padding: 36px 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 32px;
  transition: all .3s;
}
.feature-card-wide:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.feature-card-wide .icon-wrap { flex-shrink: 0; }
.icon-wrap {
  width: 52px; height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary-light));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.4rem;
  margin-bottom: 20px;
}
.feature-card-sm .icon-wrap { width: 46px; height: 46px; font-size: 1.2rem; margin-bottom: 16px; }
.feature-card-lg h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; }
.feature-card-sm h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.feature-card-wide h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; }
.feature-card p { color: var(--color-text-secondary); font-size: .95rem; }
.feature-card-wide p { flex: 1; }
.feature-tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.feature-tag {
  display: inline-block;
  font-size: .8rem;
  color: var(--color-primary);
  background: rgba(15,107,90,.06);
  border: 1px solid rgba(15,107,90,.12);
  padding: 4px 14px;
  border-radius: 999px;
}
@media (max-width: 1024px) {
  .feature-card-lg,
  .feature-card-sm {
    grid-column: span 12;
  }
  .feature-card-sm:first-child { margin-bottom: 0; }
  .feature-card-wide { flex-direction: column; align-items: flex-start; gap: 16px; }
}
@media (max-width: 640px) {
  .feature-card-lg { padding: 28px 20px; }
  .feature-card-wide { padding: 24px 20px; }
  .feature-card-sm { padding: 24px 20px; }
}

/* ===== 流程区 ===== */
.process-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.process-visual { position: relative; }
.process-visual img {
  border-radius: 1.5rem;
  box-shadow: var(--shadow-hover);
}
.process-float {
  position: absolute;
  right: -16px; top: 40px;
  background: #fff;
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: var(--shadow-hover);
  transform: rotate(2deg);
  border: 1px solid var(--color-border);
}
.process-float .num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
}
.process-float .label { font-size: .78rem; color: var(--color-text-secondary); }
.step-list { display: grid; gap: 0; }
.step-item {
  display: flex;
  gap: 20px;
  border-left: 2px solid rgba(15,107,90,.2);
  padding-left: 28px;
  padding-bottom: 36px;
  position: relative;
}
.step-item:last-child { border-left-color: transparent; padding-bottom: 0; }
.step-item::before {
  content: "";
  position: absolute;
  left: -8px; top: 4px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #fff;
  box-shadow: 0 0 0 3px rgba(15,107,90,.12);
}
.step-item .step-num {
  font-size: .85rem;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: .06em;
  margin-bottom: 4px;
}
.step-item h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 6px; }
.step-item p { color: var(--color-text-secondary); font-size: .95rem; max-width: 480px; }
@media (max-width: 1024px) {
  .process-wrap { grid-template-columns: 1fr; gap: 40px; }
  .process-visual { max-width: 520px; }
}
@media (max-width: 640px) {
  .process-float { right: 8px; top: 20px; padding: 12px 16px; }
}

/* ===== 场景卡片 ===== */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.scene-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all .3s;
}
.scene-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); }
.scene-card img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.scene-card .body { padding: 24px; }
.scene-card .body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.scene-card .body p { font-size: .9rem; color: var(--color-text-secondary); }
@media (max-width: 1024px) { .scene-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .scene-grid { grid-template-columns: 1fr; } }

/* ===== 数据证据条 ===== */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}
.stat-badge {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: 1.5rem;
  padding: 40px 28px;
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-hover);
}
.stat-badge .num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  color: #FBBF24;
}
.stat-badge .label { font-size: .85rem; color: rgba(255,255,255,.75); margin-top: 4px; }
@media (max-width: 1024px) { .stat-strip { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .stat-strip { grid-template-columns: 1fr; } }

/* 客户证据横滑 */
.proof-strip {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 16px;
  scrollbar-width: none;
}
.proof-strip::-webkit-scrollbar { display: none; }
.proof-card {
  flex: 0 0 340px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 1.5rem;
  padding: 32px;
  box-shadow: var(--shadow);
  position: relative;
  transition: all .3s;
}
.proof-card:nth-child(2) { transform: translateY(16px); }
.proof-card:nth-child(3) { transform: translateY(8px); }
.proof-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px) !important; }
.proof-card .quote-mark {
  font-size: 2.4rem;
  color: rgba(15,107,90,.2);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 8px;
}
.proof-card p { font-size: .95rem; color: var(--color-text-secondary); margin-bottom: 20px; }
.proof-card .client {
  display: flex;
  align-items: center;
  gap: 12px;
}
.proof-card .client-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #083D34, #0D8E72);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1rem;
}
.proof-card .client-name { font-size: .9rem; font-weight: 600; }
.proof-card .client-role { font-size: .78rem; color: var(--color-text-secondary); }

/* ===== FAQ ===== */
.faq-wrap {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}
.faq-list { display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 1.5rem;
  padding: 24px 28px;
  cursor: pointer;
  transition: all .3s;
}
.faq-item:hover { border-color: rgba(15,107,90,.3); }
.faq-item.open { border-color: var(--color-primary); box-shadow: var(--shadow); }
.faq-item .faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}
.faq-item .faq-q i { transition: all .3s; color: var(--color-primary); }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-item .faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, opacity .3s;
  opacity: 0;
}
.faq-item.open .faq-a { max-height: 500px; opacity: 1; padding-top: 14px; }
.faq-item .faq-a p { font-size: .95rem; color: var(--color-text-secondary); }
.faq-side {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 1.5rem;
  padding: 32px;
  box-shadow: var(--shadow);
}
.faq-side .faq-side-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: rgba(217,119,6,.12);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent);
  font-size: 1.2rem;
  margin-bottom: 16px;
}
.faq-side h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.faq-side p { font-size: .9rem; color: var(--color-text-secondary); margin-bottom: 20px; }
.faq-side .btn { width: 100%; }
@media (max-width: 1024px) {
  .faq-wrap { grid-template-columns: 1fr; }
}

/* ===== CTA ===== */
.cta-section {
  border-radius: 2rem;
  background: linear-gradient(135deg, #083D34, #0F6B5A 70%, #0D8E72);
  padding: 64px;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: .12;
}
.cta-inner {
  position: relative; z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.cta-inner h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.cta-inner p { color: rgba(255,255,255,.8); }
.cta-inner .btn-group { display: flex; gap: 16px; flex-shrink: 0; }
@media (max-width: 768px) {
  .cta-section { padding: 40px 24px; }
  .cta-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .cta-inner .btn-group { flex-wrap: wrap; }
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,.85);
  padding: 64px 0 28px;
  margin-top: 96px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}
@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }
.footer-brand .brand-name-footer {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.footer-intro {
  font-size: .9rem;
  line-height: 1.7;
  color: rgba(255,255,255,.6);
  margin-bottom: 16px;
  max-width: 320px;
}
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: rgba(255,255,255,.7);
  transition: all .2s;
}
.footer-social a:hover { background: var(--color-accent); color: #fff; }
.footer-title { font-size: .95rem; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: .9rem; color: rgba(255,255,255,.6); transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-contact-item {
  font-size: .9rem;
  color: rgba(255,255,255,.6);
  margin-top: 10px;
  display: flex; align-items: center; gap: 8px;
}
.footer-contact-item i { width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 20px;
  display: flex; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  font-size: .85rem;
  color: rgba(255,255,255,.4);
}

/* ===== 浮动 CTA ===== */
.float-cta {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 100;
  display: inline-flex;
  align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary-light));
  color: #fff;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 12px 32px rgba(8,61,52,.35);
  transition: all .3s;
}
.float-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(8,61,52,.42);
}
@media (max-width: 640px) {
  .float-cta {
    bottom: calc(16px + env(safe-area-inset-bottom));
    right: 16px;
    padding: 12px 20px;
    font-size: .9rem;
  }
}

/* ===== 焦点可访问性 ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(217,119,6,.5);
  outline-offset: 2px;
}

/* roulang page: category4 */
:root {
      --primary: #0F6B5A;
      --primary-dark: #083D34;
      --primary-light: #0D8E72;
      --accent: #D97706;
      --accent-hover: #B85D02;
      --bg: #F7F9F8;
      --card: #FFFFFF;
      --text: #1F2937;
      --muted: #6B7280;
      --border: #E5E7EB;
      --radius-lg: 1.75rem;
      --radius-md: 1.25rem;
      --radius-btn: .75rem;
      --shadow-sm: 0 6px 18px rgba(11,107,90,0.06);
      --shadow: 0 12px 30px rgba(11,107,90,0.08);
      --shadow-lg: 0 18px 40px rgba(11,107,90,0.15);
      --gradient: linear-gradient(135deg, #083D34 0%, #0F6B5A 55%, #0D8E72 100%);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button,
    input {
      font-family: inherit;
    }

    ul,
    ol {
      list-style: none;
    }

    .container {
      max-width: 1260px;
      margin-inline: auto;
      padding-inline: 24px;
    }

    /* ========== Header 双层导航 ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
    }

    .header-top {
      height: 64px;
      display: flex;
      align-items: center;
    }

    .header-top-inner {
      display: flex;
      align-items: center;
      gap: 20px;
      width: 100%;
    }

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

    .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: var(--gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 17px;
      box-shadow: var(--shadow-sm);
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: .5px;
      color: var(--primary-dark);
      white-space: nowrap;
    }

    .header-search {
      flex: 1;
      max-width: 360px;
      margin-left: auto;
      position: relative;
    }

    .header-search .search-icon {
      position: absolute;
      left: 16px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--muted);
      font-size: 14px;
      pointer-events: none;
    }

    .header-search input {
      width: 100%;
      height: 40px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: #fff;
      padding: 0 18px 0 42px;
      font-size: .875rem;
      color: var(--text);
      transition: border-color .25s, box-shadow .25s;
    }

    .header-search input::placeholder {
      color: #9ca3af;
    }

    .header-search input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(15,107,90,.12);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 0;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: .95rem;
      padding: 12px 22px;
      cursor: pointer;
      transition: background .25s, box-shadow .25s, transform .25s, border-color .25s;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: var(--shadow);
      transform: translateY(-2px);
    }

    .btn-accent {
      background: var(--accent);
      color: #fff;
    }

    .btn-accent:hover {
      background: var(--accent-hover);
      box-shadow: 0 14px 30px rgba(217,119,6,.28);
      transform: translateY(-2px);
    }

    .btn-ghost {
      background: transparent;
      color: #fff;
      border: 1.5px solid rgba(255,255,255,.65);
    }

    .btn-ghost:hover {
      background: rgba(255,255,255,.12);
      border-color: #fff;
    }

    .btn-outline {
      background: transparent;
      color: var(--primary);
      border: 1.5px solid var(--primary);
    }

    .btn-outline:hover {
      background: var(--primary);
      color: #fff;
    }

    .btn-outline-light {
      background: transparent;
      color: #fff;
      border: 1.5px solid rgba(255,255,255,.7);
    }

    .btn-outline-light:hover {
      background: rgba(255,255,255,.14);
      border-color: #fff;
    }

    .btn-sm {
      padding: 9px 18px;
      font-size: .875rem;
    }

    .btn-lg {
      padding: 14px 30px;
      font-size: 1.05rem;
    }

    .mobile-search-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 1px solid var(--border);
      background: #fff;
      color: var(--primary);
      align-items: center;
      justify-content: center;
      cursor: pointer;
      margin-left: auto;
    }

    .channel-nav {
      height: 48px;
      border-top: 1px solid var(--border);
    }

    .channel-links {
      display: flex;
      align-items: center;
      gap: 8px;
      height: 48px;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }

    .channel-links::-webkit-scrollbar {
      display: none;
    }

    .channel-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      height: 36px;
      padding: 0 16px;
      border-radius: 999px;
      font-size: .9rem;
      font-weight: 500;
      color: var(--muted);
      white-space: nowrap;
      transition: background .25s, color .25s;
    }

    .channel-link i {
      color: var(--primary);
      opacity: .8;
    }

    .channel-link:hover {
      background: rgba(15,107,90,.08);
      color: var(--primary);
    }

    .channel-link.active {
      background: var(--gradient);
      color: #fff;
      box-shadow: var(--shadow-sm);
    }

    .channel-link.active i {
      color: #fff;
      opacity: 1;
    }

    /* ========== Main 顶部占位 ========== */
    main {
      padding-top: 112px;
    }

    /* ========== 分类 Hero ========== */
    .category-hero {
      padding: 40px 0 32px;
    }

    .hero-card {
      position: relative;
      border-radius: 2rem;
      background: linear-gradient(120deg, rgba(8,61,52,.94), rgba(15,107,90,.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      padding: clamp(2rem, 5vw, 4.25rem);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .hero-card::before {
      content: '';
      position: absolute;
      right: -60px;
      top: -60px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(255,255,255,.07);
    }

    .hero-card::after {
      content: '';
      position: absolute;
      right: 70px;
      bottom: -90px;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      background: rgba(217,119,6,.22);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 720px;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255,255,255,.14);
      border: 1px solid rgba(255,255,255,.24);
      color: #fff;
      font-size: .82rem;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 20px;
    }

    .hero-card h1 {
      color: #fff;
      font-size: clamp(2rem, 5vw, 3.25rem);
      line-height: 1.15;
      font-weight: 800;
      margin-bottom: 18px;
      letter-spacing: .5px;
    }

    .hero-card .hero-desc {
      color: rgba(255,255,255,.88);
      font-size: 1.0625rem;
      line-height: 1.8;
      max-width: 640px;
      margin-bottom: 30px;
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 22px;
      color: rgba(255,255,255,.72);
      font-size: .85rem;
    }

    .breadcrumb a {
      color: rgba(255,255,255,.9);
    }

    .breadcrumb a:hover {
      color: #fff;
    }

    .breadcrumb .sep {
      opacity: .6;
    }

    /* ========== Section 通用 ========== */
    .section {
      padding: 96px 0;
    }

    .section-header {
      max-width: 720px;
      margin-bottom: 52px;
    }

    .section-header h2 {
      font-size: clamp(1.75rem, 3vw, 2.5rem);
      font-weight: 700;
      line-height: 1.2;
      color: var(--primary-dark);
      margin-bottom: 14px;
    }

    .section-header p {
      color: var(--muted);
      font-size: 1.0625rem;
      line-height: 1.75;
    }

    /* ========== 审计能力卡片 ========== */
    .capability-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .cap-card {
      background: var(--card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid rgba(255,255,255,.6);
      transition: transform .3s, box-shadow .3s;
      display: flex;
      flex-direction: column;
    }

    .cap-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }

    .cap-card.large {
      grid-column: span 2;
    }

    .cap-card .cap-thumb {
      overflow: hidden;
      aspect-ratio: 16 / 9;
    }

    .cap-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .3s;
    }

    .cap-card:hover img {
      transform: scale(1.03);
    }

    .cap-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      flex: 1;
    }

    .cap-body h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
    }

    .cap-body p {
      color: var(--muted);
      font-size: .925rem;
      line-height: 1.7;
    }

    .cap-link {
      margin-top: auto;
      padding-top: 14px;
      font-size: .875rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: color .25s, gap .25s;
    }

    .cap-card:hover .cap-link {
      color: var(--accent);
      gap: 10px;
    }

    /* ========== 审计流程工作流 ========== */
    .workflow-section {
      background: linear-gradient(160deg, #ffffff 0%, #f0f6f3 100%);
    }

    .workflow-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 56px;
      align-items: center;
    }

    .workflow-left h2 {
      font-size: clamp(1.75rem, 3vw, 2.35rem);
      font-weight: 700;
      line-height: 1.2;
      color: var(--primary-dark);
      margin-bottom: 14px;
    }

    .workflow-desc {
      color: var(--muted);
      font-size: 1.0625rem;
      margin-bottom: 30px;
      max-width: 520px;
    }

    .workflow-steps {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 34px;
    }

    .workflow-steps li {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 1.25rem;
      padding: 18px 20px;
      font-size: .9375rem;
      color: var(--text);
      box-shadow: var(--shadow-sm);
      transition: border-color .25s, transform .25s;
    }

    .workflow-steps li:hover {
      border-color: var(--primary);
      transform: translateX(4px);
    }

    .step-no {
      flex-shrink: 0;
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background: var(--gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: .875rem;
    }

    .data-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .stat-badge {
      background: var(--primary-dark);
      color: #fff;
      border-radius: 1.25rem;
      padding: 14px 20px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: .82rem;
      line-height: 1.4;
      box-shadow: var(--shadow);
    }

    .stat-badge .stat-num {
      font-size: 1.4rem;
      font-weight: 800;
      color: #fbbf24;
    }

    .workflow-right {
      position: relative;
    }

    .workflow-visual {
      position: relative;
      border-radius: 2rem;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .workflow-visual img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .floating-card {
      position: absolute;
      left: 20px;
      bottom: 20px;
      background: rgba(255,255,255,.96);
      backdrop-filter: blur(8px);
      border-radius: 1.25rem;
      padding: 14px 18px;
      display: flex;
      align-items: center;
      gap: 12px;
      box-shadow: var(--shadow-lg);
      max-width: 260px;
    }

    .floating-card i {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: linear-gradient(135deg, #fbbf24, var(--accent));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      flex-shrink: 0;
    }

    .floating-card strong {
      display: block;
      font-size: .875rem;
      color: var(--text);
    }

    .floating-card span {
      font-size: .78rem;
      color: var(--muted);
    }

    /* ========== 适用业务场景 ========== */
    .scenario-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .scenario-card {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      background: var(--card);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      border: 1px solid rgba(255,255,255,.6);
      transition: transform .3s, box-shadow .3s;
    }

    .scenario-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow);
    }

    .scenario-icon {
      flex-shrink: 0;
      width: 54px;
      height: 54px;
      border-radius: 16px;
      background: var(--gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
    }

    .scenario-card h3 {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }

    .scenario-card p {
      color: var(--muted);
      font-size: .9rem;
      line-height: 1.7;
    }

    /* ========== 数据统计带 ========== */
    .stats-band {
      background: var(--gradient);
      padding: 64px 0;
    }

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

    .stat-item {
      text-align: center;
      color: #fff;
      padding: 10px;
    }

    .stat-item .stat-num {
      display: block;
      font-size: clamp(2rem, 4vw, 2.75rem);
      font-weight: 800;
      line-height: 1.2;
      color: #fbbf24;
    }

    .stat-item .stat-label {
      display: block;
      margin-top: 8px;
      font-size: .88rem;
      color: rgba(255,255,255,.82);
    }

    /* ========== FAQ ========== */
    .faq-grid {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 56px;
      align-items: start;
    }

    .faq-left {
      position: sticky;
      top: 128px;
    }

    .faq-left h2 {
      font-size: clamp(1.75rem, 3vw, 2.5rem);
      font-weight: 700;
      line-height: 1.2;
      color: var(--primary-dark);
      margin-bottom: 14px;
    }

    .faq-left p {
      color: var(--muted);
      font-size: 1.0625rem;
      line-height: 1.75;
      margin-bottom: 26px;
    }

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

    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 1.5rem;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: border-color .25s, box-shadow .25s;
    }

    .faq-item[open] {
      border-color: var(--primary);
      box-shadow: var(--shadow);
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 22px 24px;
      cursor: pointer;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text);
      list-style: none;
    }

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

    .faq-item summary i {
      color: var(--primary);
      transition: transform .3s;
      flex-shrink: 0;
    }

    .faq-item[open] summary i {
      transform: rotate(45deg);
    }

    .faq-item .faq-answer {
      padding: 0 24px 24px;
      color: var(--muted);
      font-size: .925rem;
      line-height: 1.75;
    }

    /* ========== CTA ========== */
    .cta-section {
      padding: 24px 0 96px;
    }

    .cta-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 40px;
      flex-wrap: wrap;
      border-radius: 2rem;
      background: linear-gradient(130deg, #083D34, #0F6B5A 65%, #0D8E72);
      padding: clamp(2rem, 5vw, 3.75rem);
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }

    .cta-card::before {
      content: '';
      position: absolute;
      right: -50px;
      top: -70px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: rgba(255,255,255,.06);
    }

    .cta-text {
      position: relative;
      z-index: 2;
      max-width: 620px;
    }

    .cta-text h2 {
      color: #fff;
      font-size: clamp(1.75rem, 3vw, 2.4rem);
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 14px;
    }

    .cta-text p {
      color: rgba(255,255,255,.85);
      font-size: 1.0625rem;
      line-height: 1.75;
    }

    .cta-actions {
      position: relative;
      z-index: 2;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    /* ========== 浮动 CTA ========== */
    .float-cta {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 60;
      height: 52px;
      padding: 0 22px;
      border-radius: 999px;
      background: var(--gradient);
      color: #fff;
      font-size: .9rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      box-shadow: var(--shadow-lg);
      transition: transform .25s, box-shadow .25s;
    }

    .float-cta:hover {
      transform: translateY(-3px);
      box-shadow: 0 22px 44px rgba(11,107,90,.32);
    }

    /* ========== Footer ========== */
    .site-footer {
      background: var(--primary-dark);
      color: rgba(255,255,255,.85);
      padding: 64px 0 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .brand-name-footer {
      font-size: 1.4rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-intro {
      font-size: .9rem;
      line-height: 1.8;
      color: rgba(255,255,255,.72);
      margin-bottom: 20px;
    }

    .footer-social {
      display: flex;
      gap: 10px;
    }

    .footer-social a {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: rgba(255,255,255,.08);
      color: rgba(255,255,255,.8);
      transition: background .25s, color .25s;
    }

    .footer-social a:hover {
      background: var(--accent);
      color: #fff;
    }

    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }

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

    .footer-links a {
      font-size: .9rem;
      color: rgba(255,255,255,.72);
      transition: color .25s;
    }

    .footer-links a:hover {
      color: #fbbf24;
    }

    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: .9rem;
      color: rgba(255,255,255,.78);
      margin-bottom: 12px;
    }

    .footer-contact-item i {
      width: 28px;
      color: #fbbf24;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,.12);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
      font-size: .85rem;
      color: rgba(255,255,255,.62);
    }

    /* ========== 响应式 ========== */
    @media (max-width: 1024px) {
      .section {
        padding: 72px 0;
      }

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

      .workflow-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .workflow-left {
        order: 1;
      }

      .workflow-right {
        order: 0;
      }

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px 24px;
      }

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

      .faq-left {
        position: static;
      }

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

    @media (max-width: 768px) {
      .header-search {
        display: none;
      }

      .mobile-search-toggle {
        display: flex;
      }

      .header-search.open {
        display: block;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        max-width: none;
        padding: 14px 24px;
        background: rgba(255,255,255,.98);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
      }

      .channel-nav {
        height: 48px;
      }

      .channel-links {
        height: 48px;
      }

      .hero-card {
        padding: 2rem 1.5rem;
      }

      .hero-card h1 {
        font-size: 2rem;
      }

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

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

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

      .cta-card {
        flex-direction: column;
        align-items: flex-start;
      }

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

      .float-cta {
        bottom: 18px;
        right: 18px;
        height: 48px;
        padding: 0 18px;
      }
    }

    @media (max-width: 640px) {
      .container {
        padding-inline: 18px;
      }

      .section {
        padding: 56px 0;
      }

      .header-top-inner {
        gap: 12px;
      }

      .brand-name {
        font-size: 1.05rem;
      }

      .header-top .btn-sm {
        padding: 9px 14px;
        font-size: .82rem;
      }

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

      .cap-card.large {
        grid-column: span 1;
      }

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

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

      .cta-actions {
        width: 100%;
        flex-direction: column;
      }

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

      .float-cta span {
        display: none;
      }

      .float-cta {
        padding: 0 18px;
      }
    }