/* roulang page: index */
:root {
    --brand: #0E5F4D;
    --brand-dark: #0A3C32;
    --brand-darker: #071F1B;
    --brand-light: #14806A;
    --accent: #D9F449;
    --paper: #F6F7F2;
    --ink: #1B231F;
    --soft: #5E6B65;
    --muted: #8A948F;
    --hairline: #DDE4DE;
    --white: #ffffff;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-card: 0 1px 2px rgba(20,30,26,.06), 0 16px 32px -24px rgba(14,95,77,.35);
    --shadow-lift: 0 2px 4px rgba(20,30,26,.05), 0 24px 48px -28px rgba(14,95,77,.45);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    background: #F6F7F2;
    color: #1B231F;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

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

  a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease;
  }

  button {
    font-family: inherit;
  }

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

  .section {
    padding-top: 96px;
    padding-bottom: 96px;
  }

  .section-head {
    max-width: 840px;
    margin-bottom: 48px;
  }

  .section-head.right {
    margin-left: auto;
    text-align: right;
  }

  .kicker {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: .8125rem;
    font-weight: 600;
    letter-spacing: .08em;
    color: var(--brand);
    background: rgba(14, 95, 77, .08);
    border-radius: 999px;
    padding: 6px 14px;
    line-height: 1.2;
  }

  .kicker.accent {
    color: var(--brand-darker);
    background: rgba(217, 244, 73, .32);
  }

  .section-title {
    margin-top: 16px;
    font-size: clamp(1.875rem, 2.4vw, 2.5rem);
    line-height: 1.25;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -.01em;
  }

  .section-sub {
    margin-top: 16px;
    color: var(--soft);
    font-size: 1rem;
    line-height: 1.9;
    max-width: 720px;
  }

  .section-sub.left {
    margin-left: 0;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 52px;
    padding: 0 28px;
    line-height: 1;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .18s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
    white-space: nowrap;
    user-select: none;
  }

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

  .btn:active {
    transform: scale(.98);
  }

  .btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }

  .btn-sm {
    height: 42px;
    padding: 0 20px;
    font-size: .9375rem;
    border-radius: 6px;
  }

  .btn-lg {
    height: 56px;
    padding: 0 36px;
    border-radius: 10px;
  }

  .btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 12px 24px -14px rgba(14, 95, 77, .55);
  }

  .btn-primary:hover {
    background: #0a4a3c;
    box-shadow: 0 16px 30px -16px rgba(14, 95, 77, .6);
  }

  .btn-outline {
    border-color: #c6d0ca;
    color: var(--ink);
    background: transparent;
  }

  .btn-outline:hover {
    border-color: var(--brand);
    color: var(--brand);
    background: rgba(14, 95, 77, .04);
  }

  .btn-accent {
    background: var(--accent);
    color: #16211E;
    font-weight: 700;
  }

  .btn-accent:hover {
    background: #e2fa6f;
  }

  .btn-light {
    background: #fff;
    color: var(--brand-dark);
    font-weight: 700;
  }

  .btn-light:hover {
    background: #f2f7f0;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(246, 247, 242, .94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--hairline);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    height: 74px;
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
  }

  .brand-mark {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--brand);
    color: var(--accent);
  }

  .brand-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
    line-height: 1.15;
  }

  .brand-text strong {
    font-size: 1.175rem;
    font-weight: 800;
    letter-spacing: .01em;
    color: var(--ink);
  }

  .brand-text small {
    font-size: .6875rem;
    color: var(--soft);
    letter-spacing: .03em;
    transform: scale(1);
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: 24px;
  }

  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: .9375rem;
    font-weight: 500;
    color: #435049;
    padding: 24px 0;
    transition: color .2s ease;
  }

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

  .nav-link.active {
    color: var(--brand);
    font-weight: 600;
  }

  .nav-link.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 3px;
    background: var(--brand);
    border-radius: 999px 999px 0 0;
  }

  .nav-item {
    position: relative;
  }

  .nav-item .dropdown {
    position: absolute;
    top: calc(100% - 10px);
    left: -18px;
    min-width: 240px;
    background: #fff;
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lift);
    padding: 10px;
    visibility: hidden;
    opacity: 0;
    transform: translateY(8px);
    transition: .18s ease;
    z-index: 200;
  }

  .nav-item:hover .dropdown,
  .nav-item:focus-within .dropdown {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .dropdown-link {
    display: block;
    padding: 12px 14px;
    border-radius: 8px;
    color: var(--ink);
    font-size: .9375rem;
    transition: background .15s ease, color .15s ease;
  }

  .dropdown-link:hover {
    background: rgba(14, 95, 77, .07);
    color: var(--brand);
  }

  .dropdown-link small {
    display: block;
    font-size: .75rem;
    color: var(--soft);
    margin-top: 2px;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
  }

  .search-toggle,
  .nav-toggle {
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: #fff;
    border: 1px solid var(--hairline);
    cursor: pointer;
    transition: .2s ease;
  }

  .search-toggle:hover,
  .nav-toggle:hover {
    border-color: var(--brand);
    color: var(--brand);
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: transparent;
  }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: var(--ink);
    transition: transform .2s ease, opacity .2s ease;
  }

  .search-layer {
    display: none;
    background: #fff;
    border-top: 1px solid var(--hairline);
    padding: 16px 0;
  }

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

  .search-form {
    display: flex;
    gap: 12px;
  }

  .search-form .field {
    flex: 1;
  }

  .field,
  textarea.field {
    width: 100%;
    height: 50px;
    border: 1px solid #D8DFDA;
    border-radius: 8px;
    padding: 0 16px;
    font-size: .9375rem;
    color: var(--ink);
    background: #fff;
    transition: border-color .2s ease, box-shadow .2s ease;
  }

  .field:focus,
  textarea:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(14, 95, 77, .14);
  }

  .field::placeholder {
    color: var(--muted);
  }

  /* Hero */
  .hero {
    position: relative;
    overflow: hidden;
    min-height: calc(100vh - 74px);
    background: var(--paper);
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 58% 42%;
    min-height: 720px;
  }

  .hero-left {
    display: flex;
    align-items: center;
    padding: 96px 0 96px 0;
    position: relative;
    z-index: 2;
  }

  .hero-inner {
    max-width: 690px;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 32px;
    background: #e7ece4;
    color: var(--brand-dark);
    border-radius: 999px;
    padding: 0 12px;
    font-size: .8125rem;
    font-weight: 600;
    margin-bottom: 24px;
  }

  .hero-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 99px;
    background: #1DBB7B;
  }

  .hero-title {
    font-size: clamp(2.4rem, 3.6vw, 3.7rem);
    line-height: 1.18;
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--ink);
  }

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

  .hero-sub {
    margin-top: 24px;
    font-size: 1.0625rem;
    line-height: 1.9;
    color: var(--soft);
    max-width: 620px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 36px;
  }

  .hero-proof {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 24px;
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--hairline);
    color: var(--soft);
    font-size: .85rem;
  }

  .hero-proof span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
  }

  .proof-icon {
    color: var(--brand);
  }

  .hero-visual {
    position: relative;
    min-height: 720px;
    background:
      linear-gradient(150deg, rgba(7, 31, 27, .93), rgba(10, 60, 50, .84)),
      url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    color: #fff;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 64px 48px;
    overflow: hidden;
  }

  .hero-visual::before {
    content: '';
    position: absolute;
    top: -10%;
    right: 15%;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(217, 244, 73, .17);
    transform: rotate(30deg);
  }

  .hero-visual::after {
    content: '';
    position: absolute;
    bottom: -18%;
    left: -10%;
    width: 240px;
    height: 240px;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 50%;
  }

  .visual-card-wrap {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 360px;
    margin-left: auto;
  }

  .visual-card {
    background: rgba(12, 48, 40, .72);
    border: 1px solid rgba(255, 255, 255, .12);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
  }

  .visual-card-top {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
  }

  .status-dot {
    width: 10px;
    height: 10px;
    border-radius: 9px;
    background: var(--accent);
    box-shadow: 0 0 0 5px rgba(217, 244, 73, .15);
  }

  .visual-card-title {
    font-size: .875rem;
    color: #d3dbd5;
  }

  .visual-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    padding: 18px 0;
    border-top: 1px solid rgba(255, 255, 255, .1);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }

  .visual-stat {
    text-align: left;
  }

  .visual-stat strong {
    display: block;
    font-size: 1.35rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
  }

  .visual-stat strong em {
    font-style: normal;
    font-size: .8125rem;
    color: var(--accent);
    margin-left: 2px;
  }

  .visual-stat span {
    font-size: .75rem;
    color: #a5b6ae;
    margin-top: 4px;
    display: block;
  }

  .visual-message {
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: #e6eee9;
    font-size: .875rem;
  }

  .visual-message svg {
    color: var(--accent);
    flex-shrink: 0;
  }

  .hero-slogan-stripe {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, .25);
    padding: 20px 0;
    font-size: .8125rem;
    color: rgba(255, 255, 255, .75);
    border-top: 1px solid rgba(255, 255, 255, .12);
  }

  .hero-slogan-stripe .container {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
  }

  .hero-slogan-stripe span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  /* Service list */
  .services-section {
    background: var(--paper);
  }

  .service-list {
    border-top: 1px solid var(--hairline);
  }

  .service-row {
    display: grid;
    grid-template-columns: 80px 1fr 48px;
    align-items: center;
    gap: 24px;
    padding: 32px 18px;
    border-bottom: 1px solid var(--hairline);
    position: relative;
    overflow: hidden;
    transition: background .2s ease, padding-left .2s ease;
  }

  .service-row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--accent);
    transform: scaleY(0);
    transition: transform .25s ease;
  }

  .service-row:hover {
    background: #fff;
    padding-left: 26px;
  }

  .service-row:hover::before {
    transform: scaleY(1);
  }

  .service-index {
    font-size: .9375rem;
    font-weight: 700;
    color: var(--muted);
    font-family: 'DIN', 'Roboto Mono', sans-serif;
    letter-spacing: .06em;
  }

  .service-main strong {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 8px;
  }

  .service-main small {
    font-size: .875rem;
    color: var(--soft);
    line-height: 1.6;
    max-width: 720px;
  }

  .service-link {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--hairline);
    color: var(--brand);
    transition: .25s ease;
  }

  .service-row:hover .service-link {
    background: var(--brand);
    color: var(--accent);
    transform: translateX(4px);
  }

  .service-row:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: -2px;
  }

  /* Stats */
  .stats-section {
    position: relative;
    background: var(--brand-darker);
    overflow: hidden;
    color: #fff;
  }

  .stats-section::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
      linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 72px 72px;
  }

  .stats-inner {
    position: relative;
    z-index: 1;
  }

  .stats-head {
    max-width: 760px;
  }

  .stats-head .section-title {
    color: #fff;
    margin-top: 14px;
  }

  .stats-head .section-sub {
    color: rgba(255, 255, 255, .68);
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 52px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    padding-top: 40px;
  }

  .stat-item {
    position: relative;
    padding-right: 28px;
  }

  .stat-item + .stat-item::before {
    content: '';
    position: absolute;
    left: -16px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: rgba(255, 255, 255, .12);
  }

  .stat-num {
    display: block;
    font-size: clamp(2rem, 3vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -.01em;
    color: var(--accent);
    line-height: 1;
  }

  .stat-num sup,
  .stat-num .unit {
    font-size: 1.1rem;
    font-weight: 600;
    vertical-align: baseline;
    margin-left: 4px;
    color: rgba(255, 255, 255, .75);
  }

  .stat-label {
    margin-top: 14px;
    font-size: .875rem;
    color: rgba(255, 255, 255, .7);
    line-height: 1.6;
    display: block;
  }

  .stats-foot {
    margin-top: 24px;
    font-size: .8125rem;
    color: rgba(255, 255, 255, .35);
  }

  /* Case section */
  .caselist-section {
    background: #fff;
  }

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

  .case-card {
    position: relative;
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #fff;
    transition: box-shadow .3s ease, transform .3s ease;
  }

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

  .case-media {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
  }

  .case-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .55s ease;
  }

  .case-card:hover .case-media img {
    transform: scale(1.035);
  }

  .case-tag {
    position: absolute;
    left: 16px;
    top: 16px;
    background: rgba(14, 95, 77, .88);
    color: #fff;
    font-size: .75rem;
    padding: 5px 12px;
    border-radius: 999px;
    backdrop-filter: blur(4px);
  }

  .case-body {
    padding: 24px 24px 26px;
  }

  .case-body h3 {
    font-size: 1.2rem;
    color: var(--ink);
    line-height: 1.5;
    font-weight: 700;
  }

  .case-body p {
    color: var(--soft);
    font-size: .9375rem;
    line-height: 1.8;
    margin-top: 10px;
  }

  .case-meta {
    margin-top: 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 16px;
    border-top: 1px solid #EDF0EC;
    color: var(--muted);
    font-size: .8125rem;
  }

  .case-meta .case-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand);
    font-weight: 600;
  }

  .case-meta .case-link svg {
    transition: transform .2s ease;
  }

  .case-card:hover .case-link svg {
    transform: translateX(4px);
  }

  /* Solution section */
  .solution-section {
    background: var(--paper);
  }

  .solution-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 24px;
  }

  .solution-block {
    display: block;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    min-height: 420px;
    color: #fff;
    border: 1px solid transparent;
    transition: box-shadow .3s ease, border-color .3s ease;
  }

  .solution-block:hover {
    box-shadow: var(--shadow-lift);
    border-color: var(--accent);
  }

  .solution-block img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
  }

  .solution-block:hover img {
    transform: scale(1.03);
  }

  .solution-block::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(10deg, rgba(7, 31, 27, .93) 15%, rgba(7, 31, 27, .2) 80%);
  }

  .solution-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
    min-height: 420px;
    padding: 40px;
  }

  .solution-content .s-tag {
    background: var(--accent);
    color: #16211E;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: .8125rem;
    font-weight: 600;
  }

  .solution-content h3 {
    margin-top: 16px;
    font-size: 1.9rem;
    line-height: 1.35;
    font-weight: 800;
    max-width: 360px;
  }

  .solution-content p {
    margin-top: 14px;
    max-width: 440px;
    font-size: .9375rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, .8);
  }

  .btn-line {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-top: 24px;
    padding: 10px 18px;
    border: 1px solid rgba(255, 255, 255, .45);
    border-radius: 999px;
    color: #fff;
    font-size: .875rem;
    font-weight: 600;
    transition: .25s ease;
  }

  .solution-block:hover .btn-line {
    background: var(--accent);
    border-color: var(--accent);
    color: #16211E;
  }

  .btn-line svg {
    transition: transform .2s ease;
  }

  .solution-block:hover .btn-line svg {
    transform: translateX(4px);
  }

  .solution-banner {
    margin-top: 28px;
    background: var(--brand);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    overflow: hidden;
    position: relative;
  }

  .solution-banner::after {
    content: '';
    position: absolute;
    right: -16%;
    top: -60%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, .04);
    border-radius: 50%;
  }

  .solution-banner h3 {
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.5;
  }

  .solution-banner p {
    color: rgba(255, 255, 255, .78);
    margin-top: 6px;
    font-size: .875rem;
  }

  /* News CMS list */
  .news-section {
    background: #fff;
  }

  .news-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
  }

  .news-list {
    margin-top: 48px;
    border-top: 1px solid var(--hairline);
  }

  .news-item {
    border-bottom: 1px solid var(--hairline);
    transition: background .2s ease;
    position: relative;
  }

  .news-item a {
    display: grid;
    grid-template-columns: 160px 1fr 160px 56px;
    gap: 20px;
    align-items: center;
    padding: 28px 8px;
    transition: background .2s ease;
    position: relative;
  }

  .news-item:hover {
    background: #f8faf7;
  }

  .news-item a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    bottom: 14px;
    width: 3px;
    background: var(--accent);
    transform: scaleY(0);
    transition: transform .2s ease;
  }

  .news-item a:hover::before {
    transform: scaleY(1);
  }

  .news-date {
    color: var(--muted);
    font-size: .8125rem;
    display: flex;
    flex-direction: column;
    line-height: 1.45;
  }

  .news-date strong {
    color: var(--ink);
    font-size: 1.1rem;
    letter-spacing: -.01em;
  }

  .news-main {
    min-width: 0;
  }

  .news-cat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .75rem;
    font-weight: 600;
    color: var(--brand);
    background: rgba(14, 95, 77, .07);
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 8px;
  }

  .news-main h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    line-height: 1.6;
    color: var(--ink);
    overflow-wrap: break-word;
  }

  .news-main p {
    color: var(--soft);
    font-size: .875rem;
    margin-top: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-arrow {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--hairline);
    color: var(--brand);
    transition: .22s ease;
  }

  .news-item:hover .news-arrow {
    background: var(--brand);
    color: var(--accent);
    transform: translateX(4px);
  }

  .news-empty {
    border: 1px dashed #cbd8ce;
    border-radius: 16px;
    background: #fbfcf8;
    padding: 60px 20px;
    text-align: center;
    color: var(--soft);
    font-size: .9375rem;
    margin-top: 40px;
  }

  /* FAQ */
  .faq-section {
    background: var(--paper);
  }

  .faq-wrap {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 80px;
  }

  .faq-side .section-sub {
    margin-top: 18px;
  }

  .faq-list {
    border-top: 1px solid var(--hairline);
  }

  .faq-item {
    border-bottom: 1px solid var(--hairline);
    position: relative;
  }

  .faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--ink);
    padding: 26px 8px 26px 24px;
    position: relative;
    transition: color .2s ease;
  }

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

  .faq-item summary::before {
    content: '';
    position: absolute;
    left: 0;
    top: 24px;
    bottom: 24px;
    width: 3px;
    background: var(--brand);
    border-radius: 4px;
    transform: scaleY(0);
    transition: transform .2s ease;
  }

  .faq-item[open] summary::before {
    transform: scaleY(1);
  }

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

  .faq-item summary::after {
    content: '+';
    font-size: 1.55rem;
    font-weight: 300;
    color: var(--brand);
    line-height: 1;
    transition: transform .25s ease;
  }

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

  .faq-answer {
    max-width: 680px;
    padding: 0 28px 32px 24px;
    color: var(--soft);
    font-size: .9375rem;
    line-height: 1.9;
  }

  .faq-answer p + p {
    margin-top: 12px;
  }

  /* Contact CTA */
  .contact-project {
    position: relative;
    background: var(--brand-darker);
    overflow: hidden;
    color: #fff;
  }

  .contact-project::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      linear-gradient(75deg, rgba(7, 31, 27, .95), rgba(10, 60, 50, .84)),
      url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  }

  .contact-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
  }

  .contact-info .kicker {
    background: rgba(255, 255, 255, .1);
    color: var(--accent);
  }

  .contact-title {
    font-size: clamp(1.875rem, 2.6vw, 2.4rem);
    line-height: 1.4;
    font-weight: 800;
    margin-top: 18px;
  }

  .contact-desc {
    margin: 18px 0 32px;
    color: rgba(255, 255, 255, .72);
    max-width: 460px;
  }

  .contact-rows {
    display: grid;
    gap: 18px;
    margin-top: 24px;
  }

  .contact-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .14);
    font-size: .9375rem;
    color: rgba(255, 255, 255, .9);
  }

  .contact-row svg {
    color: var(--accent);
  }

  .contact-row strong {
    font-weight: 600;
    color: #fff;
  }

  .contact-form-card {
    background: rgba(255, 255, 255, .98);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lift);
  }

  .contact-form-card h3 {
    color: var(--ink);
    font-size: 1.25rem;
    margin-bottom: 6px;
    font-weight: 700;
  }

  .contact-form-card p {
    color: var(--soft);
    font-size: .875rem;
    margin-bottom: 24px;
  }

  .form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .form-grid .full {
    grid-column: 1 / -1;
  }

  .field-label {
    font-size: .8125rem;
    color: var(--ink);
    font-weight: 500;
    margin-bottom: 6px;
    display: block;
  }

  textarea.field {
    height: 108px;
    padding: 14px 16px;
    resize: vertical;
  }

  .form-note {
    margin-top: 14px;
    margin-bottom: 0 !important;
    font-size: .8125rem !important;
    color: var(--muted) !important;
  }

  .contact-form-card .btn {
    margin-top: 18px;
    width: 100%;
  }

  /* Footer */
  .site-footer {
    background: #fff;
    border-top: 1px solid var(--hairline);
  }

  .footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 48px;
    padding: 64px 24px 40px;
  }

  .footer-brand .brand {
    margin-bottom: 16px;
  }

  .footer-brand p {
    color: var(--soft);
    font-size: .875rem;
    max-width: 280px;
    line-height: 1.8;
  }

  .footer-title {
    font-size: .875rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 18px;
    letter-spacing: .04em;
  }

  .footer-links {
    display: grid;
    gap: 12px;
  }

  .footer-links a {
    color: var(--soft);
    font-size: .9375rem;
    transition: color .15s ease, transform .15s ease;
    display: inline-block;
  }

  .footer-links a:hover {
    color: var(--brand);
    transform: translateX(3px);
  }

  .footer-contact p {
    color: var(--soft);
    font-size: .875rem;
    margin-bottom: 6px;
  }

  .footer-contact a {
    color: var(--ink);
    font-weight: 600;
  }

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

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    border-top: 1px solid var(--hairline);
    padding: 20px 24px;
    color: var(--muted);
    font-size: .8125rem;
  }

  @media (max-width: 1024px) {
    .section {
      padding-top: 72px;
      padding-bottom: 72px;
    }

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

    .hero-left {
      padding: 64px 0 48px;
    }

    .hero-visual {
      min-height: 540px;
    }

    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 40px 24px;
    }

    .main-nav {
      display: none;
    }

    .nav-toggle {
      display: inline-flex;
    }

    .main-nav.open {
      display: flex;
      flex-direction: column;
      position: absolute;
      left: 0;
      right: 0;
      top: 100%;
      background: #F9FAF6;
      border-bottom: 1px solid var(--hairline);
      padding: 21px 24px 28px;
      margin-left: 0;
      gap: 4px;
      box-shadow: 0 30px 40px -20px rgba(0, 0, 0, .25);
    }

    .main-nav.open .nav-link {
      padding: 12px 0;
      width: 100%;
      justify-content: space-between;
    }

    .nav-item .dropdown {
      position: static;
      visibility: visible;
      opacity: 1;
      transform: none;
      background: transparent;
      border: 0;
      box-shadow: none;
      padding: 4px 0 8px;
      min-width: 0;
    }

    .nav-item:hover .dropdown,
    .nav-item:focus-within .dropdown {
      transform: none;
    }

    .dropdown-link {
      padding: 10px 12px 10px 10px;
    }
  }

  @media (max-width: 820px) {
    .case-grid,
    .solution-grid {
      grid-template-columns: 1fr;
    }

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

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

    .footer-top {
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }

    .news-item a {
      grid-template-columns: 1fr 52px;
    }

    .news-date {
      display: none;
    }

    .news-main {
      grid-column: 1;
    }
  }

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

    .section {
      padding-top: 56px;
      padding-bottom: 56px;
    }

    .header-inner {
      height: 64px;
    }

    .brand-text small {
      font-size: .625rem;
    }

    .hero-left {
      padding-top: 48px;
    }

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

    .hero-visual {
      min-height: 420px;
      padding: 32px 20px;
    }

    .visual-card {
      padding: 20px 16px;
    }

    .service-row {
      grid-template-columns: 36px 1fr 32px;
      gap: 14px;
      padding: 24px 6px;
    }

    .service-index {
      font-size: .8125rem;
    }

    .service-main strong {
      font-size: 1.05rem;
      margin-bottom: 4px;
    }

    .service-main small {
      font-size: .8125rem;
    }

    .section-title {
      font-size: 1.55rem;
    }

    .section-head {
      margin-bottom: 36px;
    }

    .stats-grid {
      grid-template-columns: 1fr 1fr;
      gap: 28px 12px;
    }

    .stats-inner .stat-item {
      padding-right: 8px;
    }

    .stat-num {
      font-size: 2.1rem;
    }

    .case-body {
      padding: 18px;
    }

    .solution-content {
      padding: 20px;
      min-height: 330px;
    }

    .solution-content h3 {
      font-size: 1.35rem;
    }

    .solution-banner {
      flex-direction: column;
      align-items: flex-start;
      padding: 28px 22px;
    }

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

    .footer-top {
      grid-template-columns: 1fr;
      padding: 40px 16px 16px;
    }

    .footer-bottom {
      justify-content: center;
      text-align: center;
      padding: 18px 16px;
      font-size: .75rem;
    }
  }

  @media (max-width: 480px) {
    .brand-text strong {
      font-size: 1rem;
    }

    .brand-mark {
      width: 36px;
      height: 36px;
    }

    .hero-title {
      font-size: 1.95rem;
    }

    .header-actions {
      gap: 8px;
    }
  }

/* roulang page: category1 */
:root {
  --primary: #0E5F4D;
  --primary-deep: #0A3C32;
  --primary-ink: #071F1B;
  --accent: #D9F449;
  --accent-ink: #16211E;
  --paper: #F6F7F2;
  --white: #FFFFFF;
  --text: #1B231F;
  --muted: #5E6B65;
  --disabled: #8A948F;
  --line: #DDE4DE;
  --radius-sm: 6px;
  --radius-md: 12px;
  --shadow-card: 0 16px 32px -24px rgba(14,95,77,0.35);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
}

body.sub-page {
  background: var(--white);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  margin: 0 0 14px;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.15; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 2.4vw, 2.125rem); line-height: 1.25; }
h3 { font-size: 1.25rem; line-height: 1.45; }

p {
  margin: 0 0 16px;
}

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

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

button {
  border: 0;
  background: transparent;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 96px 0;
}

.section--tighter {
  padding: 72px 0;
}

.section-head {
  max-width: 780px;
  margin-bottom: 48px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 0.06em;
  font-size: 0.8125rem;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-kicker::before {
  content: "";
  display: inline-block;
  width: 20px;
  height: 2px;
  background: var(--accent);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #FFFFFF;
  height: 48px;
  padding: 0 26px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: background-color .2s ease, transform .15s ease, box-shadow .2s ease, border-color .2s ease, color .2s ease;
  will-change: transform;
}

.btn:hover {
  background: var(--primary-deep);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(10,60,50,0.18);
}

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

.btn:focus-visible,
.field:focus-visible,
.search-toggle:focus-visible,
.nav-toggle:focus-visible,
.dropdown-link:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-lg {
  height: 54px;
  padding: 0 32px;
  font-size: 16px;
}

.btn-sm {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: rgba(14,95,77,0.35);
}

.btn-outline:hover {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  box-shadow: none;
}

.btn-light {
  background: #FFFFFF;
  color: var(--text);
}

.btn-light:hover {
  background: #EDF1EA;
  color: var(--text);
  box-shadow: 0 12px 28px rgba(0,0,0,0.08);
}

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

.btn-accent:hover {
  background: #cfe63a;
  color: var(--accent-ink);
  box-shadow: 0 14px 28px rgba(0,0,0,0.16);
}

/* Header nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #FFFFFF;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  color: var(--text);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  gap: 0;
}

.brand-text strong {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.brand-text small {
  font-size: 12px;
  color: var(--muted);
  font-weight: 400;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin: 0 auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  background: transparent;
  border: 0;
  font-weight: 500;
  color: var(--text);
  font-size: 15px;
  line-height: 1;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease, opacity .15s ease;
}

.nav-link svg {
  opacity: 0.55;
  margin-left: 4px;
}

a.nav-link:hover,
.nav-item:hover > .nav-link,
.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.nav-item {
  position: relative;
}

.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: -18px;
  min-width: 320px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow-card);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  transition: background-color .15s ease, color .15s ease;
}

.dropdown-link small {
  font-weight: 400;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.dropdown-link:hover,
.dropdown-link.active {
  background: #EDF6F1;
  color: var(--primary);
}

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

.search-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--text);
  background: #F3F6F2;
  transition: background-color .15s ease, color .15s ease;
}

.search-toggle:hover {
  background: #E4ECE6;
  color: var(--primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.search-layer {
  background: #FFFFFF;
  border-top: 1px solid var(--line);
  padding: 18px 0 26px;
  display: none;
}

.search-layer.active {
  display: block;
}

.search-layer form {
  display: flex;
  gap: 12px;
  align-items: center;
}

.field {
  display: block;
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: 1px solid #D8DFDA;
  background: #FFFFFF;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: border-color .15s ease, box-shadow .15s ease;
}

textarea.field {
  height: auto;
  padding: 14px 16px;
  resize: vertical;
  min-height: 120px;
}

.field::placeholder {
  color: var(--disabled);
}

.field:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,95,77,0.14);
  outline: none;
}

/* Category hero */
.sub-nav-anchor {
  scroll-margin-top: 96px;
}

.page-hero {
  position: relative;
  background: var(--primary-ink);
  overflow: hidden;
  padding: 96px 0;
  min-height: 460px;
  display: flex;
  align-items: center;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
  opacity: 0.3;
  transform: scale(1.04);
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7,31,27,0.92) 0%, rgba(10,60,50,0.68) 68%, rgba(7,31,27,0.35) 100%);
}

.page-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.66fr;
  gap: 64px;
  align-items: center;
  color: #FFFFFF;
}

.page-hero h1 {
  color: #FFFFFF;
  margin-bottom: 18px;
}

.page-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
}

.hero-lead {
  color: rgba(255,255,255,0.82);
  font-size: 17px;
  max-width: 640px;
  line-height: 1.9;
}

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

.hero-points {
  margin: 28px 0 0;
  padding: 0;
}

.hero-points li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: rgba(255,255,255,0.76);
  margin-bottom: 12px;
  font-size: 15px;
}

.hero-points li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent);
  margin-top: 15px;
  flex-shrink: 0;
}

.hero-panel {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(217,244,73,0.2);
  border-radius: 20px;
  padding: 34px 30px;
  backdrop-filter: blur(6px);
}

.hero-panel h3 {
  color: #FFFFFF;
  font-size: 18px;
  margin-bottom: 20px;
}

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

.hero-panel-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  color: rgba(255,255,255,0.84);
  line-height: 1.6;
}

.hero-panel-list svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent);
}

/* Feature intro proof numbers */
.proof-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--primary-ink);
  border-radius: 20px;
  padding: 44px 20px;
  color: #FFFFFF;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.proof-row::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(217,244,73,0.04), transparent 45%);
}

.proof-cell {
  position: relative;
  padding: 0 28px;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.proof-cell:last-child { border-right: 0; }

.proof-num {
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
}

.proof-label {
  display: block;
  margin-top: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.65);
}

/* Section and module cards */
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.module-card {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px;
  min-height: 190px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative;
}

.module-card:hover {
  transform: translateY(-4px);
  border-color: rgba(14,95,77,0.35);
  box-shadow: var(--shadow-card);
}

.module-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 7px;
  background: #E9F4ED;
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 18px;
}

.module-card h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.module-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 0;
}

/* Split image + text */
.split-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.split-media {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: var(--line);
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
  transition: transform .4s ease;
}

.split-media:hover img {
  transform: scale(1.03);
}

.split-content .content-tag {
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 10px;
  display: block;
}

.split-content h2 {
  font-size: clamp(1.5rem, 2.3vw, 2.125rem);
  margin-bottom: 20px;
}

.check-list {
  margin-top: 22px;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--text);
}

.check-list li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  color: var(--primary);
}

/* Scenario cards */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.scenario-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(217,244,73,0.16);
  border-radius: 16px;
  padding: 28px 24px;
  color: #FFFFFF;
  transition: background-color .2s ease, border-color .2s ease, transform .2s ease;
}

.scenario-item:hover {
  background: rgba(217,244,73,0.1);
  border-color: rgba(217,244,73,0.4);
  transform: translateY(-3px);
}

.scenario-icon {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  margin-bottom: 18px;
}

.scenario-item h3 {
  color: #FFFFFF;
  font-size: 17px;
  margin-bottom: 10px;
}

.scenario-item p {
  color: rgba(255,255,255,0.68);
  font-size: 14px;
  margin-bottom: 0;
  line-height: 1.8;
}

.band-deep {
  background: var(--primary-ink);
  color: #FFFFFF;
}

.band-deep .section-head h2 {
  color: #FFFFFF;
}

.band-deep .section-head p {
  color: rgba(255,255,255,0.7);
}

.band-mist {
  background: var(--paper);
}

/* Flow */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  counter-reset: flow;
}

.flow-step {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  position: relative;
}

.flow-step::before {
  counter-increment: flow;
  content: "0" counter(flow);
  font-weight: 800;
  color: var(--primary);
  font-size: 22px;
  letter-spacing: -0.02em;
}

.flow-step h3 {
  font-size: 16px;
  margin: 18px 0 8px;
}

.flow-step p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 0;
}

/* Cases */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.case-card {
  display: block;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow .2s ease, transform .2s ease;
}

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

.case-media {
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--line);
}

.case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}

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

.case-body {
  padding: 24px 26px 26px;
}

.case-tag {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  background: #E7F3EB;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
}

.case-body h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.case-body p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--primary);
  font-size: 14px;
  transition: gap .2s ease;
}

.arrow-link:hover {
  gap: 10px;
}

/* FAQ */
.faq-wrap {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.faq-wrap .section-head {
  margin-bottom: 0;
}

.faq-intro p {
  color: var(--muted);
  font-size: 15px;
}

.faq-items {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 22px 0;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  list-style: none;
  transition: color .15s ease;
}

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

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

.faq-item summary::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #EDF3EE;
  color: var(--primary);
  font-size: 20px;
  line-height: 1;
  flex-shrink: 0;
  transition: background-color .15s ease, color .15s ease;
}

.faq-item[open] summary::after {
  content: "−";
  background: var(--primary);
  color: #FFFFFF;
}

.faq-answer {
  padding: 0 0 24px;
  max-width: 680px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* Contact strip */
.contact-section {
  background: var(--primary-ink);
  color: #FFFFFF;
  padding: 96px 0;
}

.contact-section .section-head h2 {
  color: #FFFFFF;
}

.contact-section .section-head p {
  color: rgba(255,255,255,0.7);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: start;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.contact-methods-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 22px 24px;
}

.contact-methods-item p {
  color: rgba(255,255,255,0.58);
  margin-bottom: 5px;
  font-size: 13px;
}

.contact-methods-item a {
  color: #FFFFFF;
  font-weight: 700;
  font-size: 18px;
}

.contact-methods-item a:hover {
  color: var(--accent);
}

.contact-form {
  background: #FFFFFF;
  border-radius: 18px;
  padding: 32px;
  color: var(--text);
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form .field {
  background: var(--paper);
}

.contact-form .form-note {
  color: var(--muted);
  font-size: 13px;
  margin-top: 16px;
  margin-bottom: 0;
}

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

.footer-top {
  display: grid;
  grid-template-columns: 2.1fr 1fr 1fr 1.2fr;
  gap: 50px;
  padding: 72px 24px 44px;
}

.footer-brand p {
  color: var(--muted);
  font-size: 14px;
  margin: 18px 0 0;
  max-width: 360px;
  line-height: 1.9;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-links a {
  font-size: 14px;
  color: var(--muted);
  transition: color .15s ease;
}

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

.footer-contact p {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 2px;
}

.footer-contact a {
  font-weight: 600;
  color: var(--text);
}

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

.footer-bottom {
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 22px 24px;
  font-size: 13px;
  color: var(--disabled);
}

.footer-bottom p {
  margin: 0;
}

/* Responsive */
@media (max-width: 1080px) {
  .main-nav {
    gap: 18px;
  }

  .page-hero-inner {
    grid-template-columns: 1fr 0.9fr;
    gap: 40px;
  }

  .proof-cell {
    padding: 0 16px;
  }
}

@media (max-width: 920px) {
  .section {
    padding: 72px 0;
  }

  .header-inner {
    gap: 14px;
  }

  .main-nav {
    position: absolute;
    left: 24px;
    right: 24px;
    top: calc(100% + 12px);
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: 0 24px 50px -24px rgba(7,31,27,0.28);
    flex-direction: column;
    align-items: stretch;
    margin: 0;
    padding: 16px;
    display: none;
    z-index: 120;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    gap: 4px;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav .nav-link {
    width: 100%;
    padding: 12px 8px;
    border-bottom: 0;
    border-radius: 8px;
  }

  .nav-link.active {
    background: #E9F4ED;
    color: var(--primary);
  }

  .nav-item {
    display: flex;
    flex-direction: column;
  }

  .nav-item > .nav-link {
    width: 100%;
  }

  .nav-item:focus-within .dropdown {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    min-width: 0;
    margin: 4px 0 10px 18px;
    padding: 0;
    display: block;
    width: auto;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .page-hero {
    min-height: auto;
    padding: 80px 0;
  }

  .page-hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-panel-list {
    max-width: 520px;
  }

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

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

  .split-media img {
    min-height: 260px;
  }

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

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

  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

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

  .header-inner {
    min-height: 64px;
    gap: 10px;
  }

  .brand-mark {
    display: none;
  }

  .brand-text strong {
    font-size: 17px;
  }

  .brand-text small {
    font-size: 11px;
  }

  .header-actions .btn-sm {
    height: 38px;
    padding: 0 14px;
    font-size: 13px;
  }

  .main-nav {
    left: 16px;
    right: 16px;
  }

  .page-hero {
    padding: 56px 0;
  }

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

  .hero-panel {
    padding: 24px 20px;
  }

  .section {
    padding: 60px 0;
  }

  .section-head {
    margin-bottom: 30px;
  }

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

  .proof-row {
    grid-template-columns: 1fr 1fr;
    row-gap: 28px;
    padding: 32px 10px;
  }

  .proof-cell {
    border-bottom: 0;
    border-right: 1px solid rgba(255,255,255,0.08);
    padding: 0 10px;
  }

  .proof-cell:nth-child(even) {
    border-right: 0;
  }

  .yes-row .proof-cell:nth-child(3),
  .proof-row .proof-cell:nth-child(3) {
    border-right: 0;
  }

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

  .split-block {
    gap: 28px;
  }

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

  .contact-form {
    padding: 20px;
  }

  .contact-form-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    padding: 22px 16px;
  }

  .faq-wrap {
    gap: 16px;
  }

  .faq-item summary {
    font-size: 14px;
    padding: 18px 0;
  }
}

/* roulang page: article */
:root {
    --c-primary: #0E5F4D;
    --c-primary-dark: #0A3C32;
    --c-deep: #071F1B;
    --c-accent: #D9F449;
    --c-accent-ink: #16211E;
    --c-paper: #F6F7F2;
    --c-white: #FFFFFF;
    --c-text: #1B231F;
    --c-muted: #5E6B65;
    --c-faint: #8A948F;
    --c-border: #DDE4DE;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 18px;
    --radius-pill: 999px;
    --shadow-card: 0 1px 2px rgba(7, 31, 27, 0.05);
    --shadow-lift: 0 16px 32px -24px rgba(14, 95, 77, 0.35);
    --space-section: 96px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--c-paper);
    color: var(--c-text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

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

  button,
  input,
  textarea {
    font: inherit;
  }

  button {
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
  }

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

  .section {
    padding: var(--space-section) 0;
  }

  .section-head {
    max-width: 720px;
    margin-bottom: 48px;
  }

  .section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 16px;
    color: var(--c-primary);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.08em;
  }

  .section-kicker::before {
    content: '';
    width: 22px;
    height: 2px;
    background-color: var(--c-accent);
    display: inline-block;
  }

  .section-title {
    margin: 0;
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--c-text);
  }

  .section-title-light {
    color: var(--c-white);
  }

  .section-desc {
    margin: 18px 0 0;
    color: var(--c-muted);
    font-size: 1.0625rem;
    line-height: 1.8;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    padding: 0 1.35rem;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 700;
    line-height: 1;
    border: 1px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
    will-change: transform;
  }

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

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

  .btn:focus-visible {
    outline: 2px solid var(--c-accent);
    outline-offset: 3px;
  }

  .btn-primary {
    background-color: var(--c-primary);
    color: var(--c-white);
    box-shadow: 0 10px 24px -16px rgba(14, 95, 77, 0.7);
  }

  .btn-primary:hover {
    background-color: var(--c-primary-dark);
  }

  .btn-outline {
    border-color: rgba(27, 35, 31, 0.25);
    color: var(--c-text);
  }

  .btn-outline:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
  }

  .btn-accent {
    background-color: var(--c-accent);
    color: var(--c-accent-ink);
  }

  .btn-accent:hover {
    background-color: #c9e13c;
    box-shadow: 0 14px 30px -18px rgba(217, 244, 73, 0.8);
  }

  .btn-light {
    background-color: var(--c-white);
    color: var(--c-primary-dark);
  }

  .btn-light:hover {
    background-color: #edf1e7;
  }

  .btn-sm {
    min-height: 42px;
    padding: 0 1.1rem;
    font-size: 0.875rem;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(246, 247, 242, 0.93);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--c-border);
  }

  .header-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 24px;
    min-height: 74px;
  }

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

  .brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--c-primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 22px -14px rgba(14, 95, 77, 0.8);
  }

  .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
  }

  .brand-text strong {
    color: var(--c-text);
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.01em;
  }

  .brand-text small {
    color: var(--c-muted);
    font-size: 0.7188rem;
    letter-spacing: 0.02em;
    margin-top: 4px;
  }

  .main-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    color: var(--c-text);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 8px;
    transition: background-color 0.2s ease, color 0.2s ease;
  }

  .nav-link:hover {
    background: rgba(14, 95, 77, 0.08);
    color: var(--c-primary);
  }

  .nav-link.active {
    color: var(--c-primary);
    background: rgba(14, 95, 77, 0.08);
  }

  .nav-item {
    position: relative;
  }

  .dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    width: 280px;
    margin-top: 8px;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 10px;
    transform: translateX(-50%) translateY(-6px);
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 20px 45px -22px rgba(7, 31, 27, 0.28);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .nav-item:hover .dropdown,
  .nav-item:focus-within .dropdown {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }

  .dropdown-link {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 12px 14px;
    border-radius: 8px;
    color: var(--c-text);
    font-size: 0.9375rem;
    font-weight: 700;
    transition: background-color 0.2s ease, color 0.2s ease;
  }

  .dropdown-link small {
    color: var(--c-muted);
    font-size: 0.8125rem;
    font-weight: 400;
  }

  .dropdown-link:hover {
    background: rgba(14, 95, 77, 0.08);
    color: var(--c-primary);
  }

  .header-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
  }

  .search-toggle,
  .nav-toggle {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--c-text);
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--c-border);
    transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
  }

  .search-toggle:hover,
  .nav-toggle:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
  }

  .search-toggle:focus-visible,
  .nav-toggle:focus-visible {
    outline: 2px solid var(--c-accent);
    outline-offset: 2px;
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
  }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform 0.25s ease, opacity 0.2s ease;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .search-layer {
    display: none;
    border-top: 1px solid var(--c-border);
    background: var(--c-white);
    padding: 18px 0;
  }

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

  .search-form {
    display: flex;
    gap: 10px;
  }

  .field {
    width: 100%;
    height: 48px;
    border-radius: var(--radius-sm);
    border: 1px solid #c9d4cb;
    background: #fff;
    padding: 0 16px;
    color: var(--c-text);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }

  .field::placeholder {
    color: var(--c-faint);
  }

  .field:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(14, 95, 77, 0.12);
  }

  .page-lead {
    background:
      linear-gradient(100deg, rgba(7, 31, 27, 0.94) 0%, rgba(10, 60, 50, 0.82) 48%, rgba(10, 60, 50, 0.55) 100%),
      url('/assets/images/backpic/back-3.png') center / cover no-repeat;
    padding: 72px 0 110px;
    position: relative;
    color: #fff;
  }

  .page-lead::after {
    content: '';
    position: absolute;
    right: 0;
    bottom: 0;
    width: 220px;
    height: 90px;
    background: linear-gradient(120deg, transparent 48%, rgba(217, 244, 73, 0.5) 49%, rgba(217, 244, 73, 0.5) 50%, transparent 51%);
    background-size: 28px 28px;
    opacity: 0.35;
  }

  .lead-kicker {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 16px;
    color: var(--c-accent);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.14em;
  }

  .lead-kicker::before {
    content: '';
    width: 34px;
    height: 2px;
    background: var(--c-accent);
  }

  .lead-title {
    margin: 0 0 12px;
    font-size: clamp(1.7rem, 3vw, 2.5rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
  }

  .lead-subtitle {
    margin: 0;
    max-width: 560px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 1.0625rem;
    line-height: 1.85;
  }

  .article-wrap {
    padding: 0 0 72px;
    margin-top: -64px;
    position: relative;
    z-index: 2;
  }

  .article-card {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 70px -55px rgba(7, 31, 27, 0.55);
    padding: clamp(28px, 6vw, 64px);
    scroll-margin-top: 120px;
  }

  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    color: var(--c-faint);
    font-size: 0.8125rem;
    margin-bottom: 24px;
  }

  .breadcrumb a {
    color: var(--c-muted);
    transition: color 0.2s ease;
  }

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

  .breadcrumb-sep {
    color: var(--c-border);
  }

  .article-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(14, 95, 77, 0.08);
    color: var(--c-primary);
    border-radius: var(--radius-pill);
    padding: 6px 14px;
    font-size: 0.8125rem;
    font-weight: 700;
  }

  .article-title {
    margin: 14px 0 18px;
    max-width: 860px;
    font-size: clamp(1.75rem, 4vw, 2.9rem);
    line-height: 1.22;
    letter-spacing: -0.02em;
    color: var(--c-text);
    font-weight: 800;
  }

  .article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    color: var(--c-muted);
    font-size: 0.875rem;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--c-border);
  }

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

  .article-content {
    max-width: 780px;
    margin: 0 auto;
    padding: 44px 0 8px;
    font-size: 1.0625rem;
    color: #26332c;
    line-height: 1.9;
    word-break: break-word;
  }

  .article-content > * + * {
    margin-top: 1.2em;
  }

  .article-content h2 {
    margin: 2em 0 0.6em;
    font-size: 1.5rem;
    line-height: 1.4;
    color: var(--c-text);
    font-weight: 800;
  }

  .article-content h3 {
    margin: 2em 0 0.4em;
    font-size: 1.2rem;
    line-height: 1.4;
    color: var(--c-text);
    font-weight: 800;
  }

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

  .article-content a {
    color: var(--c-primary);
    border-bottom: 1px solid rgba(14, 95, 77, 0.3);
    transition: border-color 0.2s ease;
  }

  .article-content a:hover {
    border-color: var(--c-primary);
  }

  .article-content ul,
  .article-content ol {
    margin: 0 0 1.4em;
    padding-left: 1.3rem;
  }

  .article-content li {
    margin-bottom: 0.6em;
  }

  .article-content blockquote {
    margin: 1.6em 0;
    padding: 18px 24px;
    background: rgba(14, 95, 77, 0.05);
    border-left: 4px solid var(--c-primary);
    color: var(--c-muted);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
  }

  .article-content img {
    border-radius: var(--radius-md);
    margin: 28px 0;
  }

  .article-content figure {
    margin: 2em 0;
  }

  .article-content figcaption {
    margin-top: 12px;
    color: var(--c-faint);
    font-size: 0.8125rem;
    text-align: center;
  }

  .article-content hr {
    margin: 2.4em 0;
    border: 0;
    border-top: 1px solid var(--c-border);
  }

  .article-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
    margin: 1.5em 0;
  }

  .article-content th,
  .article-content td {
    padding: 12px 14px;
    border: 1px solid var(--c-border);
    text-align: left;
  }

  .article-content th {
    background: var(--c-paper);
    color: var(--c-text);
    font-weight: 700;
  }

  .article-empty {
    max-width: 640px;
    margin: 0 auto;
    padding: 56px 0;
    text-align: center;
  }

  .empty-icon {
    display: inline-flex;
    width: 64px;
    height: 64px;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: rgba(14, 95, 77, 0.1);
    color: var(--c-primary);
    margin-bottom: 20px;
  }

  .article-empty h1 {
    margin: 0 0 12px;
    font-size: 2rem;
    color: var(--c-text);
    font-weight: 800;
  }

  .article-empty p {
    margin: 0 0 28px;
    color: var(--c-muted);
  }

  .related-card {
    display: flex;
    flex-direction: column;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
  }

  .related-card:hover {
    box-shadow: var(--shadow-lift);
    transform: translateY(-3px);
    border-color: rgba(14, 95, 77, 0.25);
  }

  .related-media {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--c-paper);
    position: relative;
  }

  .related-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .related-card:hover .related-media img {
    transform: scale(1.035);
  }

  .related-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 26px 26px 28px;
  }

  .related-body h3 {
    margin: 12px 0 12px;
    font-size: 1.25rem;
    line-height: 1.45;
    color: var(--c-text);
    font-weight: 800;
  }

  .related-body p {
    margin: 0 0 20px;
    color: var(--c-muted);
    font-size: 0.9375rem;
    flex: 1;
  }

  .related-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--c-primary);
    font-size: 0.875rem;
    font-weight: 700;
  }

  .related-link svg {
    transition: transform 0.2s ease;
  }

  .related-link:hover svg {
    transform: translateX(3px);
  }

  .faq-wrap {
    max-width: 880px;
    margin: 0 auto;
    padding: 48px 56px;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
  }

  .faq-item {
    border-bottom: 1px solid var(--c-border);
  }

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

  .faq-item summary {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 4px;
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--c-text);
    cursor: pointer;
    transition: color 0.2s ease;
  }

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

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

  .faq-icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid var(--c-border);
    color: var(--c-primary);
    transition: transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
  }

  .faq-item[open] .faq-icon {
    transform: rotate(45deg);
    border-color: var(--c-primary);
    background: rgba(14, 95, 77, 0.07);
  }

  .faq-answer {
    padding: 4px 40px 24px 4px;
    color: var(--c-muted);
    line-height: 1.85;
  }

  .cta-section {
    position: relative;
    overflow: hidden;
  }

  .cta-band {
    background:
      linear-gradient(115deg, rgba(7, 31, 27, 0.95) 0%, rgba(10, 60, 50, 0.9) 100%),
      url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    border-radius: var(--radius-lg);
    padding: clamp(36px, 6vw, 70px);
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 40px;
    align-items: center;
    color: #fff;
    scroll-margin-top: 100px;
  }

  .cta-band h2 {
    margin: 0 0 16px;
    color: #fff;
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    line-height: 1.3;
    font-weight: 800;
  }

  .cta-band p {
    margin: 0;
    color: rgba(255, 255, 255, 0.76);
    max-width: 620px;
  }

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

  .cta-actions .btn {
    min-height: 54px;
    padding: 0 1.6rem;
  }

  .site-footer {
    background: var(--c-deep);
    color: rgba(255, 255, 255, 0.72);
    padding-top: 72px;
  }

  .footer-top {
    display: grid;
    grid-template-columns: 1.35fr 0.8fr 0.8fr 0.95fr;
    gap: 48px;
    padding-bottom: 56px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .footer-top .brand-text strong {
    color: #fff;
  }

  .footer-top .brand-text small {
    color: rgba(255, 255, 255, 0.58);
  }

  .footer-top .brand-mark {
    background: var(--c-accent);
    color: var(--c-accent-ink);
  }

  .footer-brand p {
    margin: 24px 0 0;
    max-width: 360px;
    font-size: 0.875rem;
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.58);
  }

  .footer-title {
    margin: 0 0 20px;
    color: #fff;
    font-size: 0.9375rem;
    font-weight: 700;
    letter-spacing: 0.04em;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .footer-links a {
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.875rem;
    transition: color 0.2s ease, transform 0.2s ease;
  }

  .footer-links a:hover {
    color: var(--c-accent);
    transform: translateX(3px);
  }

  .footer-contact p {
    margin: 0;
    color: rgba(255, 255, 255, 0.42);
    font-size: 0.8125rem;
  }

  .footer-contact a {
    display: inline-block;
    margin-top: 6px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9375rem;
    font-weight: 600;
    transition: color 0.2s ease;
  }

  .footer-contact a:hover {
    color: var(--c-accent);
  }

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
    padding: 28px 24px;
    color: rgba(255, 255, 255, 0.42);
    font-size: 0.8125rem;
  }

  @media (max-width: 1160px) {
    .header-inner {
      gap: 14px;
    }

    .main-nav {
      gap: 2px;
    }

    .nav-link {
      padding: 10px 10px;
    }

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

    .cta-band {
      grid-template-columns: 1fr;
    }

    .cta-actions {
      justify-content: flex-start;
    }
  }

  @media (max-width: 1023px) {
    .header-inner {
      grid-template-columns: 1fr auto;
    }

    .main-nav {
      display: none;
      position: fixed;
      top: 74px;
      left: 16px;
      right: 16px;
      background: var(--c-white);
      border: 1px solid var(--c-border);
      border-radius: var(--radius-md);
      box-shadow: 0 24px 55px -28px rgba(7, 31, 27, 0.22);
      padding: 16px;
      flex-direction: column;
      align-items: stretch;
      max-height: calc(100vh - 100px);
      overflow-y: auto;
      z-index: 70;
    }

    .main-nav.open {
      display: flex;
    }

    .main-nav .nav-link {
      justify-content: space-between;
      padding: 12px 12px;
    }

    .nav-item {
      display: flex;
      flex-direction: column;
    }

    .nav-item > .nav-link {
      width: 100%;
    }

    .dropdown {
      position: static;
      width: 100%;
      padding: 4px;
      transform: none;
      box-shadow: none;
      background: var(--c-paper);
      border: 0;
      opacity: 1;
      pointer-events: auto;
      margin-top: 0;
      border-radius: 10px;
    }

    .nav-item:hover .dropdown,
    .nav-item:focus-within .dropdown {
      transform: none;
    }

    .nav-toggle {
      display: inline-flex;
    }

    .header-actions {
      gap: 6px;
    }

    .header-actions .btn-sm {
      display: none;
    }

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

  @media (max-width: 768px) {
    :root {
      --space-section: 64px;
    }

    .container {
      padding: 0 18px;
    }

    .page-lead {
      padding: 48px 0 96px;
    }

    .article-card {
      border-radius: var(--radius-md);
      padding: 24px 20px;
    }

    .article-title {
      font-size: clamp(1.5rem, 7vw, 2rem);
    }

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

    .cta-band {
      padding: 30px 24px;
    }
  }

  @media (max-width: 640px) {
    .header-inner {
      min-height: 64px;
    }

    .main-nav {
      top: 64px;
      left: 12px;
      right: 12px;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 10px;
    }

    .brand-text strong {
      font-size: 0.9375rem;
    }

    .brand-text small {
      font-size: 0.625rem;
    }

    .footer-top {
      grid-template-columns: 1fr;
      gap: 38px;
      padding-bottom: 36px;
    }

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

    .search-form {
      flex-direction: column;
    }

    .search-form .btn {
      width: 100%;
    }
  }

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

/* roulang page: category2 */
:root {
  --brand:#0E5F4D;
  --brand-dark:#0A3C32;
  --brand-deep:#071F1B;
  --lime:#D9F449;
  --paper:#F6F7F2;
  --white:#FFFFFF;
  --ink:#1B231F;
  --mut:#5E6B65;
  --soft:#8A948F;
  --line:#DDE4DE;
  --radius-md:12px;
  --radius-btn:8px;
  --shadow-hover:0 16px 32px -24px rgba(14,95,77,0.35);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Arial Narrow","PingFang SC",sans-serif;
}
* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family:var(--font-sans);
  background:var(--paper);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img { max-width:100%; display:block; }
a { color:inherit; text-decoration:none; }
button { font:inherit; border:none; background:none; cursor:pointer; }
input, textarea, select { font:inherit; }
ul, ol { list-style:none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline:2px solid var(--lime);
  outline-offset:2px;
}
.container { width:100%; max-width:1280px; margin-inline:auto; padding-inline:24px; }
@media (max-width:640px){ .container { padding-inline:16px; } }

/* 按钮 */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 26px; border-radius:var(--radius-btn);
  font-size:15px; font-weight:600; letter-spacing:.02em;
  transition:background .25s, transform .2s, box-shadow .25s, border-color .25s, color .25s;
  white-space:nowrap;
}
.btn-primary { background:var(--brand); color:#fff; }
.btn-primary:hover { background:var(--brand-dark); transform:translateY(-1px); box-shadow:0 12px 24px -14px rgba(10,60,50,.7); }
.btn-primary:active { transform:scale(.98); }
.btn-outline { border:1px solid rgba(255,255,255,.72); color:#fff; background:transparent; }
.btn-outline:hover { background:rgba(255,255,255,.12); border-color:#fff; }
.btn-lime { background:var(--lime); color:#16211E; }
.btn-lime:hover { background:#e6fa65; transform:translateY(-1px); box-shadow:0 12px 24px -16px rgba(217,244,73,.6); }
.btn-lime:active { transform:scale(.98); }
.btn-sm { height:42px; padding:0 18px; font-size:14px; }

/* Header */
.site-header {
  position:sticky; top:0; z-index:90;
  background:rgba(246,247,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner {
  display:grid; grid-template-columns:auto auto 1fr;
  align-items:center; column-gap:18px; min-height:76px;
}
.brand { display:inline-flex; align-items:center; gap:10px; }
.brand-mark {
  width:42px; height:42px; border-radius:10px;
  background:var(--brand); color:#fff;
  display:inline-flex; align-items:center; justify-content:center;
  flex:0 0 auto; transition:background .25s, transform .25s;
}
.brand:hover .brand-mark { background:var(--brand-dark); transform:rotate(-4deg); }
.brand-text { display:flex; flex-direction:column; line-height:1.2; }
.brand-text strong { font-size:21px; font-weight:800; letter-spacing:-.4px; }
.brand-text small { font-size:12px; color:var(--mut); font-weight:400; margin-top:3px; white-space:nowrap; }
.main-nav { display:flex; align-items:center; gap:4px; margin-left:24px; flex-wrap:wrap; }
.main-nav .nav-link {
  display:inline-flex; align-items:center; gap:5px;
  padding:10px 14px; border-radius:9px;
  font-size:15px; font-weight:500; color:var(--ink);
  transition:background .2s, color .2s;
}
.main-nav .nav-link:hover { background:rgba(14,95,77,.08); color:var(--brand); }
.main-nav .nav-link.active { color:var(--brand); font-weight:700; }
.nav-item { position:relative; }
.nav-item .dropdown {
  position:absolute; left:0; top:calc(100% + 12px);
  min-width:294px; padding:10px;
  background:#fff; border:1px solid var(--line); border-radius:16px;
  box-shadow:0 24px 50px -24px rgba(7,31,27,.32);
  opacity:0; visibility:hidden; transform:translateY(8px);
  transition:opacity .22s, transform .22s, visibility .22s;
}
.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown { opacity:1; visibility:visible; transform:translateY(0); }
.dropdown {
  display:flex; flex-direction:column; gap:2px;
}
.dropdown-link {
  padding:13px 14px; border-radius:10px;
  display:flex; flex-direction:column; gap:2px;
  font-size:15px; font-weight:600; color:var(--ink);
  transition:background .2s, color .2s;
}
.dropdown-link small { font-size:12.5px; font-weight:400; color:var(--mut); line-height:1.45; }
.dropdown-link:hover { background:var(--brand); color:#fff; }
.dropdown-link:hover small { color:rgba(255,255,255,.76); }
.dropdown-link.active { background:rgba(14,95,77,.09); color:var(--brand); }
.dropdown-link.active small { color:var(--mut); }
.header-actions { display:flex; align-items:center; justify-content:flex-end; gap:10px; }
.search-toggle, .nav-toggle {
  width:42px; height:42px; border-radius:10px;
  display:inline-flex; align-items:center; justify-content:center;
  color:var(--ink); border:1px solid var(--line); background:#fff;
  transition:background .2s, color .2s, border-color .2s, transform .2s;
}
.search-toggle:hover { background:var(--brand); color:#fff; border-color:var(--brand); }
.search-toggle:active, .nav-toggle:active { transform:scale(.95); }
.nav-toggle { display:none; flex-direction:column; justify-content:center; gap:5px; }
.nav-toggle span { width:20px; height:2px; background:currentColor; border-radius:2px; transition:transform .3s, opacity .3s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
.search-layer { max-height:0; overflow:hidden; background:#fff; border-bottom:1px solid transparent; transition:max-height .35s, border-color .2s; }
.search-layer.open { max-height:150px; border-bottom-color:var(--line); }
.search-layer .search-form { display:grid; grid-template-columns:1fr auto; gap:12px; padding:18px 0; }
.search-form .field {
  height:48px; border:1px solid #D8DFDA; background:var(--paper);
  border-radius:9px; padding:0 16px; font-size:15px; color:var(--ink);
  transition:border-color .2s, box-shadow .2s, background .2s;
}
.search-form .field:focus { border-color:var(--brand); background:#fff; box-shadow:0 0 0 3px rgba(14,95,77,.12); outline:none; }

/* Hero */
.cat-hero {
  position:relative;
  padding:118px 0 92px;
  background-size:cover; background-position:center;
  color:#fff; overflow:hidden;
}
.cat-hero::before {
  content:""; position:absolute; inset:0;
  background:linear-gradient(118deg, rgba(7,31,27,.96) 0%, rgba(10,60,50,.88) 46%, rgba(14,95,77,.72) 100%);
}
.cat-hero-inner { position:relative; z-index:2; max-width:820px; }
.hero-label {
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 14px; border:1px solid rgba(217,244,73,.4);
  border-radius:999px; background:rgba(7,31,27,.42);
  font-size:13px; letter-spacing:.14em; color:var(--lime);
}
.hero-label::before { content:""; width:7px; height:7px; border-radius:50%; background:var(--lime); }
.cat-hero h1 {
  margin-top:20px;
  font-size:clamp(2.5rem,5vw,3.9rem);
  line-height:1.1; font-weight:800; letter-spacing:-.035em;
}
.cat-hero .cat-lead {
  margin-top:20px; max-width:700px;
  font-size:17px; line-height:1.9; color:rgba(255,255,255,.84);
}
.cat-hero-actions { display:flex; flex-wrap:wrap; gap:14px; margin-top:34px; }
.cat-hero-metrics {
  margin-top:52px; display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0; max-width:820px;
}
.cat-hero-metrics .hero-metric {
  padding:16px 24px 14px 0; border-right:1px solid rgba(255,255,255,.28);
}
.cat-hero-metrics .hero-metric + .hero-metric { padding-left:24px; }
.cat-hero-metrics .metric-num {
  font-family:var(--font-num);
  font-size:30px; font-weight:700; color:var(--lime); line-height:1.1;
}
.cat-hero-metrics .metric-desc { font-size:13px; color:rgba(255,255,255,.72); margin-top:6px; }

/* 通用区块 */
.section-block { padding:96px 0; }
.section-block.tight { padding:84px 0; }
.section-kicker {
  display:inline-block; font-size:13px; letter-spacing:.14em;
  font-weight:700; color:var(--brand); text-transform:uppercase;
}
.section-title {
  margin-top:8px; font-size:clamp(1.8rem,3vw,2.55rem);
  line-height:1.18; font-weight:800; letter-spacing:-.02em; color:var(--ink);
}
.section-text { color:var(--mut); max-width:720px; margin-top:16px; font-size:16px; }

/* 导语区 */
.lead-band { background:var(--paper); }
.lead-grid { display:grid; grid-template-columns:1.04fr .96fr; gap:72px; align-items:center; }
.lead-copy p { color:var(--mut); font-size:16.5px; line-height:1.9; }
.lead-copy p + p { margin-top:16px; }
.point-list { display:flex; flex-direction:column; }
.point-item {
  display:grid; grid-template-columns:46px 1fr; gap:16px;
  padding:20px 0; border-bottom:1px solid var(--line); align-items:start;
}
.point-item .point-index {
  width:42px; height:42px; border-radius:50%;
  background:rgba(14,95,77,.1); color:var(--brand);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-num); font-weight:700; font-size:15px;
}
.point-item h3 { font-size:17px; font-weight:700; margin-bottom:5px; }
.point-item p { font-size:14.5px; color:var(--mut); }

/* 图文区 */
.story-band { background:#fff; border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.story-row {
  display:grid; grid-template-columns:1fr 1fr; gap:72px;
  align-items:center; padding:96px 0;
  border-bottom:1px solid var(--line);
}
.story-row:last-child { border-bottom:none; }
.story-row.reverse .story-media { order:2; }
.story-row.reverse .story-copy { order:1; }
.story-media { position:relative; border-radius:14px; overflow:hidden; aspect-ratio:4/3; box-shadow:0 22px 46px -32px rgba(7,31,27,.28); }
.story-media img { width:100%; height:100%; object-fit:cover; transition:transform .7s ease; }
.story-media:hover img { transform:scale(1.035); }
.story-media::after { content:""; position:absolute; inset:0; background:linear-gradient(180deg, transparent 66%, rgba(7,31,27,.26)); }
.story-media .media-tag {
  position:absolute; left:18px; top:18px; z-index:2;
  background:var(--lime); color:#1B231F;
  padding:5px 14px; border-radius:999px; font-size:12.5px; font-weight:600;
}
.story-copy h3 { font-size:clamp(1.5rem,2.2vw,2.05rem); line-height:1.25; font-weight:800; letter-spacing:-.02em; }
.story-copy > p { margin-top:18px; color:var(--mut); font-size:15.5px; line-height:1.9; }
.story-check { margin-top:24px; display:flex; flex-direction:column; gap:12px; }
.story-check li { display:flex; gap:10px; align-items:flex-start; font-size:15px; color:var(--ink); }
.story-check li svg { width:20px; height:20px; color:var(--brand); flex:0 0 auto; margin-top:3px; }

/* 场景 */
.scenario-band { background:var(--brand-deep); color:#fff; }
.scenario-band .section-title { color:#fff; }
.scenario-band .section-text { color:rgba(255,255,255,.7); }
.scenario-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; margin-top:48px; }
.scenario-item {
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.14);
  border-radius:14px; padding:30px 28px;
  position:relative; transition:transform .3s, background .3s, border-color .3s;
}
.scenario-item::before {
  content:""; position:absolute; left:28px; right:28px; top:-1px; height:3px;
  background:var(--lime); border-radius:0 0 4px 4px;
  opacity:0; transform:scaleX(.4); transition:transform .3s, opacity .3s;
}
.scenario-item:hover { background:rgba(255,255,255,.08); transform:translateY(-6px); border-color:rgba(217,244,73,.45); }
.scenario-item:hover::before { opacity:1; transform:scaleX(1); }
.scenario-item .tag-chip {
  display:inline-block; padding:4px 12px; border-radius:999px;
  background:rgba(217,244,73,.16); color:var(--lime);
  font-size:12px; font-weight:600; letter-spacing:.06em;
}
.scenario-item h3 { font-size:21px; font-weight:700; margin-top:18px; }
.scenario-item p { color:rgba(255,255,255,.7); font-size:14.5px; margin-top:12px; line-height:1.8; }
.scenario-link {
  display:inline-flex; align-items:center; gap:8px; margin-top:22px;
  font-size:14px; font-weight:600; color:var(--lime);
}
.scenario-link svg { width:16px; height:16px; transition:transform .25s; }
.scenario-link:hover svg { transform:translateX(5px); }

/* 流程 */
.process-wrap { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:18px; margin-top:48px; counter-reset:step; }
.step-card {
  background:#fff; border:1px solid var(--line);
  border-radius:12px; padding:26px 20px 24px; position:relative;
  transition:transform .25s, box-shadow .25s, border-color .25s;
}
.step-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-hover); border-color:rgba(14,95,77,.35); }
.step-num {
  font-family:var(--font-num); font-size:15px; font-weight:700; color:var(--brand);
  display:inline-flex; align-items:center; justify-content:center;
  width:36px; height:36px; border-radius:10px;
  background:rgba(14,95,77,.09);
}
.step-card h3 { font-size:17px; font-weight:700; margin-top:18px; line-height:1.35; }
.step-card p { font-size:13.5px; color:var(--mut); margin-top:9px; line-height:1.7; }

/* FAQ */
.faq-band { background:#fff; }
.faq-wrap { max-width:900px; margin:46px auto 0; }
.faq-item { border-bottom:1px solid var(--line); }
.faq-item:first-child { border-top:1px solid var(--line); }
.faq-question {
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:24px;
  text-align:left; padding:26px 4px; font-size:17px; font-weight:700;
  color:var(--ink); transition:color .2s;
}
.faq-question:hover { color:var(--brand); }
.faq-icon {
  width:34px; height:34px; flex:0 0 auto; border-radius:50%;
  border:1px solid var(--line); background:var(--paper); color:var(--brand);
  display:flex; align-items:center; justify-content:center;
  transition:transform .35s, background .25s, color .25s, border-color .25s;
}
.faq-icon svg { width:18px; height:18px; }
.faq-item.open .faq-icon { background:var(--brand); color:#fff; border-color:var(--brand); transform:rotate(135deg); }
.faq-answer { max-height:0; overflow:hidden; transition:max-height .4s ease; }
.faq-answer-inner { padding:0 72px 28px 4px; color:var(--mut); font-size:15px; line-height:1.9; max-width:780px; }

/* CTA 联系 */
.contact-band { background:var(--brand-dark); color:#fff; }
.contact-grid { display:grid; grid-template-columns:1fr 1.15fr; gap:64px; align-items:start; }
.contact-info h2 { font-size:clamp(1.8rem,3vw,2.4rem); font-weight:800; line-height:1.25; letter-spacing:-.02em; }
.contact-info .section-contacts { margin-top:30px; display:flex; flex-direction:column; gap:20px; }
.contact-line { display:flex; align-items:flex-start; gap:14px; }
.contact-line svg { width:22px; height:22px; margin-top:4px; color:var(--lime); flex:0 0 auto; }
.contact-line p.label { font-size:13px; color:rgba(255,255,255,.66); }
.contact-line a, .contact-line span.value { font-size:18px; font-weight:600; color:#fff; }
.contact-line a:hover { color:var(--lime); }
.contact-form-card { background:#fff; border-radius:16px; padding:34px; box-shadow:0 24px 60px -28px rgba(7,31,27,.4); color:var(--ink); }
.contact-form-card h3 { font-size:22px; font-weight:800; }
.contact-form-card .form-note { font-size:13.5px; color:var(--mut); margin-top:7px; }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:26px; }
.field-label { font-size:13px; font-weight:600; color:var(--ink); margin-bottom:6px; display:block; }
.field-control { width:100%; height:48px; border:1px solid #D8DFDA; background:var(--paper); border-radius:9px; padding:0 14px; font-size:14.5px; transition:border-color .22s, box-shadow .22s, background .22s; }
.field-control:focus { outline:none; border-color:var(--brand); background:#fff; box-shadow:0 0 0 3px rgba(14,95,77,.12); }
textarea.field-control { height:110px; padding-top:12px; resize:vertical; }
.form-grid .full { grid-column:1/-1; }
.form-submit { margin-top:14px; width:100%; }

/* Footer */
.site-footer { background:var(--brand-deep); color:#fff; }
.footer-top {
  display:grid; grid-template-columns:1.5fr .9fr .8fr 1fr;
  gap:44px; padding:76px 24px 52px;
}
.footer-brand .brand { color:#fff; }
.footer-brand .brand-mark { background:var(--lime); color:var(--brand-dark); }
.footer-brand p { color:rgba(255,255,255,.66); font-size:14px; line-height:1.9; margin-top:20px; max-width:330px; }
.footer-title { font-size:14px; font-weight:700; letter-spacing:.08em; margin-bottom:20px; color:#fff; }
.footer-links { display:flex; flex-direction:column; gap:10px; }
.footer-links a { color:rgba(255,255,255,.7); font-size:14px; transition:color .2s, transform .2s; }
.footer-links a:hover { color:var(--lime); transform:translateX(3px); }
.footer-contact p { color:rgba(255,255,255,.66); font-size:13.5px; margin-bottom:4px; }
.footer-contact a { color:#fff; font-size:16px; font-weight:600; }
.footer-contact a:hover { color:var(--lime); }
.footer-bottom {
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 24px;
  display:flex; justify-content:space-between; align-items:center;
  gap:14px; flex-wrap:wrap;
  color:rgba(255,255,255,.54); font-size:13px;
}

/* 响应式 */
@media (max-width:1120px){
  .main-nav { margin-left:4px; }
  .main-nav .nav-link { padding:10px 9px; font-size:14px; }
}
@media (max-width:1024px){
  .nav-toggle { display:inline-flex; }
  .desktop-cta { display:none; }
  .main-nav {
    position:fixed; top:77px; left:0; right:0; bottom:0; z-index:80;
    background:var(--paper); margin:0; padding:28px 24px 60px;
    display:flex; flex-direction:column; align-items:stretch;
    overflow-y:auto; transform:translateX(-105%);
    transition:transform .36s ease;
  }
  body.nav-open .main-nav { transform:translateX(0); }
  body.nav-open { overflow:hidden; }
  .main-nav .nav-link { width:100%; justify-content:space-between; font-size:17px; padding:16px 8px; border-bottom:1px solid var(--line); border-radius:0; }
  .main-nav .nav-link:hover { background:transparent; }
  .main-nav .nav-item { border-bottom:1px solid var(--line); }
  .main-nav .nav-item .nav-link { border-bottom:none; }
  .nav-item .dropdown { position:static; opacity:1; visibility:visible; transform:none; box-shadow:none; border:none; background:transparent; padding:2px 0 14px; min-width:0; }
  .dropdown-link { color:var(--ink); padding:10px 8px; }
  .dropdown-link small { color:var(--mut); }
  .dropdown-link.active { background:rgba(14,95,77,.08); }
  .lead-grid, .story-row, .contact-grid { grid-template-columns:1fr; gap:42px; }
  .story-row.reverse .story-media { order:1; }
  .story-row.reverse .story-copy { order:2; }
  .scenario-grid { grid-template-columns:1fr 1fr; }
  .process-wrap { grid-template-columns:repeat(2,1fr); }
  .footer-top { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px){
  .section-block { padding:72px 0; }
  .story-row { padding:26px 0 56px; }
  .cat-hero { padding:84px 0 60px; }
  .cat-hero-metrics { grid-template-columns:repeat(2,1fr); gap:20px 0; }
  .cat-hero-metrics .hero-metric { border-right:none; }
  .cat-hero-metrics .hero-metric + .hero-metric { padding-left:0; }
  .footer-top { grid-template-columns:1fr; gap:36px; padding:56px 16px 40px; }
}
@media (max-width:560px){
  .header-inner { grid-template-columns:auto 1fr auto; min-height:70px; }
  .brand-text small { display:none; }
  .main-nav { top:70px; }
  .search-toggle { display:none; }
  .scenario-grid, .process-wrap { grid-template-columns:1fr; }
  .form-grid { grid-template-columns:1fr; }
  .hero-actions .btn { width:100%; }
  .cat-hero-actions .btn { flex:1 1 100%; }
  .contact-form-card { padding:24px 20px; }
  .footer-bottom { flex-direction:column; text-align:center; }
}