/* roulang page: index */
:root {
            --primary: #1F4C43;
            --primary-dark: #173B34;
            --primary-soft: #E7EDEA;
            --accent: #C9895B;
            --bg: #F7F5F0;
            --card: #FFFFFF;
            --ink: #20251F;
            --muted: #5C6A63;
            --line: #E5E1D8;
            --radius-lg: 1.25rem;
            --radius-md: 1rem;
            --radius-sm: .75rem;
            --shadow-sm: 0 1px 2px rgba(32, 37, 31, .04);
            --shadow-card: 0 2px 8px rgba(32, 37, 31, .06);
            --shadow-md: 0 6px 24px rgba(31, 76, 67, .08);
            --shadow-lg: 0 16px 40px rgba(31, 76, 67, .14);
            --transition: 250ms cubic-bezier(.25, .46, .45, .94);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        .container-site {
            width: 100%;
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-site {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-site {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            border-radius: 9999px;
            padding: .75rem 1.75rem;
            font-size: .9375rem;
            font-weight: 500;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: 1.5px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(31, 76, 67, .28);
            transform: translateY(-1px);
        }
        .btn-outline {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 255, 255, .55);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(31, 76, 67, .16);
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: transparent;
        }
        .btn-accent:hover {
            background: #b8764b;
            box-shadow: 0 8px 20px rgba(201, 137, 91, .35);
            transform: translateY(-1px);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: .375rem;
            padding: .375rem .875rem;
            border-radius: 9999px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: .8125rem;
            font-weight: 500;
            line-height: 1.5;
        }

        .nav-item {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: .5rem;
            padding: .375rem .625rem;
            border-radius: .75rem;
            transition: transform var(--transition), background var(--transition);
            flex-shrink: 0;
        }
        .nav-icon-wrap {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 1rem;
            background: rgba(255, 255, 255, .6);
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
            transition: all var(--transition);
        }
        .nav-label {
            font-size: .8125rem;
            color: var(--muted);
            font-weight: 500;
            transition: color var(--transition);
        }
        .nav-item:hover {
            transform: translateY(-1px);
        }
        .nav-item:hover .nav-icon-wrap {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: rgba(31, 76, 67, .15);
        }
        .nav-item.active .nav-icon-wrap {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: rgba(31, 76, 67, .2);
        }
        .nav-item.active .nav-label {
            color: var(--primary);
        }

        .scrollbar-none {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .scrollbar-none::-webkit-scrollbar {
            display: none;
        }

        .service-num {
            font-family: "Songti SC", "Noto Serif CJK SC", serif;
            font-size: 3.25rem;
            line-height: 1;
            color: rgba(31, 76, 67, .25);
            transition: color var(--transition);
            font-weight: 600;
        }
        @media (min-width: 768px) {
            .service-num {
                font-size: 4.5rem;
            }
        }

        .stat-num {
            font-family: "Songti SC", "Noto Serif CJK SC", serif;
            font-size: 2.5rem;
            line-height: 1.15;
            font-feature-settings: "tnum";
            font-weight: 600;
        }
        @media (min-width: 768px) {
            .stat-num {
                font-size: 3.75rem;
            }
        }

        .card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .time-slot {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: .625rem .875rem;
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            background: #fff;
            font-size: .875rem;
            font-weight: 500;
            color: var(--ink);
            transition: all var(--transition);
            cursor: pointer;
        }
        .time-slot:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 0;
            cursor: pointer;
            font-weight: 500;
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: "+";
            font-size: 1.5rem;
            color: var(--accent);
            transition: transform var(--transition);
            font-weight: 300;
            line-height: 1;
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-item summary:hover {
            color: var(--primary);
        }

        .form-input {
            width: 100%;
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--line);
            padding: .625rem 0;
            font-size: .9375rem;
            color: var(--ink);
            outline: none;
            transition: border-color var(--transition);
        }
        .form-input:focus {
            border-color: var(--primary);
            border-bottom-width: 2px;
        }
        .form-label {
            font-size: .875rem;
            color: var(--muted);
            font-weight: 500;
        }
        select.form-input {
            appearance: none;
            background-repeat: no-repeat;
            background-position: right 0.5rem center;
            background-size: 1rem;
            padding-right: 2rem;
            cursor: pointer;
        }

        .tag-pill {
            display: inline-block;
            padding: .375rem .875rem;
            border-radius: 9999px;
            background: #fff;
            border: 1px solid var(--line);
            font-size: .8125rem;
            font-weight: 500;
            color: var(--muted);
            transition: all var(--transition);
        }
        .tag-pill:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: rgba(31, 76, 67, .2);
        }

        .footer-link {
            color: rgba(255, 255, 255, .7);
            transition: color var(--transition);
        }
        .footer-link:hover {
            color: #fff;
        }

        .fade-up {
            opacity: 0;
            transform: translateY(1.25rem);
            transition: opacity .7s ease-out, transform .7s ease-out;
        }
        .fade-up.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .hero-fade {
            opacity: 0;
            transform: translateY(1.5rem);
            transition: opacity .8s ease-out, transform .8s ease-out;
        }
        .hero-fade.is-visible {
            opacity: 1;
            transform: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: .25rem;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
            .fade-up,
            .hero-fade {
                opacity: 1;
                transform: none;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #1F4C43;
  --primary-dark: #173B34;
  --primary-soft: #E7EDEA;
  --accent: #C9895B;
  --bg: #F7F5F0;
  --card: #FFFFFF;
  --ink: #20251F;
  --muted: #5C6A63;
  --line: #E5E1D8;
  --radius-lg: 1.25rem;
  --radius-md: 1rem;
  --radius-sm: .75rem;
  --shadow-sm: 0 1px 2px rgba(32, 37, 31, .04);
  --shadow-card: 0 2px 8px rgba(32, 37, 31, .06);
  --shadow-md: 0 6px 24px rgba(31, 76, 67, .08);
  --shadow-lg: 0 16px 40px rgba(31, 76, 67, .14);
  --transition: 250ms cubic-bezier(.25, .46, .45, .94);
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
}
button {
  font-family: inherit;
}
.container-site {
  width: 100%;
  max-width: 80rem;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (min-width: 640px) {
  .container-site {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}
@media (min-width: 1024px) {
  .container-site {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border-radius: 9999px;
  padding: .75rem 1.75rem;
  font-size: .9375rem;
  font-weight: 500;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 1.5px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(31, 76, 67, .28);
  transform: translateY(-1px);
}
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(255, 255, 255, .55);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(31, 76, 67, .16);
  transform: translateY(-1px);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}
.btn-accent:hover {
  background: #b8764b;
  box-shadow: 0 8px 20px rgba(201, 137, 91, .35);
  transform: translateY(-1px);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .375rem .875rem;
  border-radius: 9999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: .8125rem;
  font-weight: 500;
  line-height: 1.5;
}
.nav-item {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  padding: .375rem .625rem;
  border-radius: .75rem;
  transition: transform var(--transition), background var(--transition);
  flex-shrink: 0;
}
.nav-icon-wrap {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, .6);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition: all var(--transition);
}
.nav-label {
  font-size: .8125rem;
  color: var(--muted);
  font-weight: 500;
  transition: color var(--transition);
}
.nav-item:hover {
  transform: translateY(-1px);
}
.nav-item:hover .nav-icon-wrap {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(31, 76, 67, .15);
}
.nav-item.active .nav-icon-wrap {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(31, 76, 67, .2);
}
.nav-item.active .nav-label {
  color: var(--primary);
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  cursor: pointer;
  font-weight: 500;
  transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--accent);
  transition: transform var(--transition);
  font-weight: 300;
  line-height: 1;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item summary:hover {
  color: var(--primary);
}
.form-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  padding: .625rem 0;
  font-size: .9375rem;
  color: var(--ink);
  transition: border-color var(--transition);
  outline: none;
  border-radius: 0;
}
.form-input:focus {
  border-color: var(--primary);
}
.form-input::placeholder {
  color: #9AA7A1;
}
.form-label {
  font-size: .875rem;
  color: var(--muted);
  margin-bottom: .25rem;
  display: block;
  letter-spacing: .01em;
}
.footer-link {
  color: rgba(255, 255, 255, .72);
  transition: color var(--transition);
}
.footer-link:hover {
  color: #fff;
}
.scrollbar-none {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.scrollbar-none::-webkit-scrollbar {
  display: none;
}
.font-serif {
  font-family: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "STSong", serif;
}
.page-head {
  position: relative;
  background: var(--primary-dark);
  overflow: hidden;
}
.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  opacity: .28;
}
.page-head::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(23, 59, 52, .97) 30%, rgba(23, 59, 52, .82) 70%, rgba(31, 76, 67, .6));
}
.page-head > * {
  position: relative;
  z-index: 1;
}
.resource-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.resource-card .thumb {
  height: 190px;
  overflow: hidden;
}
.resource-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms ease-out;
}
.resource-card:hover .thumb img {
  transform: scale(1.05);
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  background: #fff;
}
.feature-card .icon {
  width: 3rem;
  height: 3rem;
  border-radius: .875rem;
  background: var(--primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  transition: background var(--transition), color var(--transition);
}
.feature-card:hover .icon {
  background: var(--primary);
  color: #fff;
}
.step-node {
  width: 3rem;
  height: 3rem;
  border-radius: 9999px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  font-family: "Songti SC", serif;
}
.timeline-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.step-card {
  position: relative;
  padding-top: 1rem;
}
.step-card .line {
  position: absolute;
  top: 2rem;
  right: calc(50% + 2.25rem);
  width: calc(100% - 4.5rem);
  height: 1px;
  background: var(--primary);
  opacity: .18;
}
.step-card:first-child .line {
  display: none;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .375rem .875rem;
  border-radius: 9999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: .8125rem;
  color: var(--muted);
  transition: all var(--transition);
  cursor: pointer;
}
.tag:hover {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(31, 76, 67, .15);
}
.cta-band {
  background: var(--primary-soft);
  border: 1px solid rgba(31, 76, 67, .15);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
}
.form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
}
.scenario-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: .875rem;
  transition: all var(--transition);
}
.scenario-card:hover {
  background: #fff;
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
  border-color: rgba(31, 76, 67, .15);
}
.scenario-card .num {
  font-family: "Songti SC", serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.2;
  width: 2rem;
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .timeline-wrap {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .step-card .line {
    display: none;
  }
  .feature-card {
    padding: 1.5rem;
  }
  .cta-band {
    padding: 2rem 1.25rem;
  }
  .form-card {
    padding: 1.5rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease-out, transform 600ms ease-out;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--primary);
  border-radius: 4px;
}
select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235C6A63' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .25rem center;
  padding-right: 2rem;
}