/* roulang page: index */
:root {
            --page-bg: #F5F8FC;
            --card: #FFFFFF;
            --primary: #2E6E9E;
            --primary-deep: #1D4C6D;
            --primary-light: #E8F1F8;
            --accent: #D98A3B;
            --text: #1E2C3A;
            --text-sub: #536E81;
            --text-weak: #7B93A7;
            --border: #DCE7F0;
            --divider: #EEF3F7;
            --shadow-card: 0 1px 2px rgba(19,42,60,0.05), 0 10px 30px -12px rgba(19,42,60,0.08);
            --shadow-hover: 0 2px 4px rgba(19,42,60,0.06), 0 18px 40px -16px rgba(19,42,60,0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--page-bg);
            color: var(--text);
            font-family: var(--font-sans);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        ::selection {
            background: rgba(46, 110, 158, 0.16);
        }

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

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(90deg, rgba(245, 248, 252, 0.96) 0%, rgba(245, 248, 252, 0.86) 42%, rgba(232, 241, 248, 0.44) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-color: #E8F1F8;
        }

        .cta-bg {
            background-image: linear-gradient(135deg, rgba(29, 76, 109, 0.92), rgba(29, 76, 109, 0.82)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }

        .nav-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.38rem 0.95rem;
            border-radius: 9999px;
            color: var(--text-sub);
            font-size: 0.88rem;
            font-weight: 500;
            line-height: 1.4;
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .nav-pill:hover {
            background: var(--primary-light);
            color: var(--primary-deep);
        }

        .nav-pill.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-link {
            display: block;
            padding: 0.72rem 0.9rem;
            border-radius: 0.75rem;
            color: var(--text-sub);
            font-size: 0.95rem;
            transition: all 0.2s ease;
        }

        .mobile-link:hover,
        .mobile-link.active {
            background: var(--primary-light);
            color: var(--primary-deep);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border-radius: 0.65rem;
            padding: 0.68rem 1.2rem;
            font-size: 0.92rem;
            font-weight: 500;
            line-height: 1.5;
            white-space: nowrap;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.25s ease;
        }

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

        .btn-primary:hover {
            background: #245f8a;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

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

        .btn-deep:hover {
            background: #17405c;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-ghost-navy {
            background: #fff;
            color: var(--primary-deep);
            border-color: var(--border);
        }

        .btn-ghost-navy:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
        }

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

        .btn-accent:hover {
            background: #c57728;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-accent:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-outline-white {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: #fff;
            transform: translateY(-1px);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.22rem 0.75rem;
            border-radius: 9999px;
            background: var(--primary-light);
            color: var(--primary-deep);
            font-size: 0.8rem;
            font-weight: 600;
            line-height: 1.4;
            letter-spacing: 0.01em;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary-deep);
            letter-spacing: 0.02em;
        }

        .eyebrow::before {
            content: "";
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .catalog-card {
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            background: #fff;
            border-radius: 1.2rem;
            border: 1px solid var(--border);
            padding: 1.5rem 1.35rem;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .catalog-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 1.3rem;
            bottom: 1.3rem;
            width: 2px;
            background: var(--primary-deep);
            opacity: 0;
            transform: scaleY(0.4);
            transition: all 0.3s ease;
        }

        .catalog-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(46, 110, 158, 0.25);
        }

        .catalog-card:hover::before {
            opacity: 1;
            transform: scaleY(1);
        }

        .catalog-card:hover .cat-arrow {
            transform: translateX(4px);
            color: var(--primary);
        }

        .mini-num {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid rgba(46, 110, 158, 0.28);
            background: rgba(232, 241, 248, 0.5);
            border-radius: 0.5rem;
            width: 2rem;
            height: 2rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .cat-arrow {
            transition: transform 0.25s ease, color 0.25s ease;
        }

        .featured-card,
        .mini-card,
        .rec-card,
        .dynamic-item {
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .featured-card:hover,
        .mini-card:hover,
        .rec-card:hover,
        .dynamic-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .rec-card:hover {
            border-color: rgba(46, 110, 158, 0.25);
        }

        .text-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
            transition: color 0.2s;
        }

        .text-link:hover {
            color: var(--primary-deep);
        }

        .share-card-shadow {
            box-shadow: var(--shadow-card);
        }

        details.faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 1rem;
            padding: 1.1rem 1.3rem;
            transition: box-shadow 0.25s ease, border-color 0.25s ease;
        }

        details.faq-item[open] {
            border-color: rgba(46, 110, 158, 0.28);
            box-shadow: var(--shadow-card);
        }

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

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

        .faq-plus {
            position: relative;
            width: 22px;
            height: 22px;
            flex: 0 0 22px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-deep);
            transition: transform 0.25s ease;
        }

        .faq-plus::before,
        .faq-plus::after {
            content: "";
            position: absolute;
            background: currentColor;
            border-radius: 2px;
        }

        .faq-plus::before {
            width: 10px;
            height: 2px;
            left: 6px;
            top: 10px;
        }

        .faq-plus::after {
            width: 2px;
            height: 10px;
            left: 10px;
            top: 6px;
        }

        details[open] .faq-plus {
            transform: rotate(45deg);
        }

        details.faq-item .faq-answer {
            padding-top: 0.8rem;
            margin-top: 0.6rem;
            border-top: 1px solid var(--divider);
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--text-sub);
        }

        .empty-state {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            padding: 2.6rem 1.5rem;
            background: var(--primary-light);
            border-radius: 1.2rem;
            color: var(--primary-deep);
            font-weight: 500;
            text-align: center;
        }

        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .line-clamp-1 {
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .search-input {
            background: transparent;
            border: none;
            outline: none;
            width: 100%;
            font-size: 0.85rem;
            color: var(--text);
        }

        .search-input::placeholder {
            color: var(--text-weak);
        }

        .safe-area {
            width: 100%;
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .safe-area {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .safe-area {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

/* roulang page: article */
:root{
  --brand:#2E6E9E;
  --brand-deep:#1D4C6D;
  --brand-mist:#E8F1F8;
  --accent:#D98A3B;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#1E2C3A;
  --steel:#536E81;
  --mute:#7B93A7;
  --edge:#DCE7F0;
  --divide:#EEF3F7;
  --radius:1rem;
  --shadow:0 1px 2px rgba(19,42,60,.05),0 10px 30px -12px rgba(19,42,60,.08);
  --shadow-hover:0 2px 4px rgba(19,42,60,.06),0 18px 40px -16px rgba(19,42,60,.16);
}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
}
*,*::before,*::after{box-sizing:border-box}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
.safe-area{max-width:80rem;margin-left:auto;margin-right:auto;padding-left:1rem;padding-right:1rem}
@media(min-width:768px){.safe-area{padding-left:1.5rem;padding-right:1.5rem}}
@media(min-width:1024px){.safe-area{padding-left:2rem;padding-right:2rem}}
.dock-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  background:rgba(255,255,255,.88);
  border:1px solid rgba(220,231,240,.9);
  border-radius:1.5rem;
  box-shadow:0 8px 28px -12px rgba(19,42,60,.16);
  padding:.55rem .6rem .55rem 1rem;
  backdrop-filter:blur(14px);
}
.nav-pill{
  display:inline-flex;
  align-items:center;
  padding:.42rem .95rem;
  border-radius:9999px;
  font-size:.9rem;
  font-weight:500;
  color:var(--steel);
  transition:background .2s,color .2s,transform .2s;
}
.nav-pill:hover{background:#ffffff;color:var(--brand)}
.nav-pill.active{background:var(--brand-mist);color:var(--brand-deep);font-weight:600}
.logo-text{
  font-size:1.18rem;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--brand-deep);
  white-space:nowrap;
}
.mobile-nav-link{
  display:block;
  padding:.55rem .85rem;
  border-radius:.9rem;
  font-size:.95rem;
  color:var(--ink);
  transition:background .2s,color .2s;
}
.mobile-nav-link:hover{background:var(--brand-mist)}
.mobile-nav-link.active{background:var(--brand-mist);color:var(--brand-deep);font-weight:600}
.btn-primary,.btn-secondary,.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.4rem;
  border-radius:.65rem;
  font-size:.9rem;
  font-weight:600;
  line-height:1;
  padding:.75rem 1.15rem;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s;
  text-align:center;
}
.btn-primary{background:var(--brand-deep);color:#fff}
.btn-primary:hover{background:#163b57;box-shadow:0 12px 24px -12px rgba(29,76,109,.38);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#c7782d;box-shadow:0 12px 24px -12px rgba(217,138,59,.38);transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0) scale(.99)}
.btn-secondary{background:#fff;border:1px solid var(--edge);color:var(--brand-deep)}
.btn-secondary:hover{background:var(--brand-mist);border-color:#c3d6e8;transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0) scale(.99)}
button:focus-visible,a:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
}
.search-dock{
  display:flex;
  align-items:center;
  width:190px;
  height:38px;
  border-radius:9999px;
  background:#fff;
  border:1px solid var(--edge);
  padding:0 .8rem;
  color:var(--mute);
  transition:border .2s,box-shadow .2s;
}
.search-dock:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,110,158,.12)}
.search-dock input{flex:1;border:0;outline:none;background:transparent;font-size:.85rem;color:var(--ink)}
.search-dock i{font-size:.82rem;margin-right:.45rem}
.article-hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center 30%;
  opacity:.14;
}
.article-hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,#F5F8FC 0%,rgba(255,255,255,.9) 20%,#F5F8FC 100%);
}
.eyebrow-label{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  font-size:.82rem;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--brand-deep);
  background:var(--brand-mist);
  border-radius:9999px;
  padding:.35rem .85rem;
}
.category-chip{
  display:inline-block;
  border-radius:9999px;
  background:var(--brand-mist);
  color:var(--brand-deep);
  font-size:.74rem;
  font-weight:600;
  padding:.25rem .7rem;
}
.date-chip{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  font-size:.85rem;
  color:var(--steel);
}
.breadcrumb-item{
  color:var(--mute);
  font-size:.85rem;
  transition:color .2s;
}
.breadcrumb-item:hover{color:var(--brand)}
.breadcrumb-sep{margin:0 .45rem;color:#c1d2e2}
.article-body{
  font-size:1.02rem;
  line-height:1.9;
  color:var(--ink);
}
.article-body p{margin:0 0 1.8rem}
.article-body h2{
  font-size:1.55rem;
  line-height:1.45;
  font-weight:600;
  color:var(--brand-deep);
  margin:2.4rem 0 1.2rem;
  letter-spacing:-.01em;
}
.article-body h3{
  font-size:1.22rem;
  line-height:1.5;
  font-weight:600;
  color:var(--brand-deep);
  margin:2rem 0 .9rem;
}
.article-body ul,.article-body ol{
  margin:0 0 1.8rem;
  padding-left:1.35rem;
}
.article-body li{margin-bottom:.55rem}
.article-body blockquote{
  margin:0 0 1.8rem;
  padding:1.1rem 1.3rem;
  border-left:4px solid var(--brand);
  background:#F7FAFD;
  border-radius:.5rem;
  color:var(--steel);
}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(46,110,158,.35)}
.article-body a:hover{color:var(--brand-deep);border-color:var(--brand-deep)}
.article-body img{border-radius:1.1rem;box-shadow:0 14px 36px -18px rgba(19,42,60,.22);margin:2rem auto}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:0 0 1.9rem;
  font-size:.9rem;
  background:#fff;
}
.article-body th{
  background:var(--brand-mist);
  color:var(--brand-deep);
  font-weight:600;
  text-align:left;
  padding:.7rem .9rem;
  border:1px solid var(--edge);
}
.article-body td{
  padding:.7rem .9rem;
  border:1px solid var(--event);
  color:var(--ink);
}
.share-icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:2.4rem;
  height:2.4rem;
  border-radius:9999px;
  border:1px solid var(--edge);
  background:#fff;
  color:var(--steel);
  transition:all .2s;
}
.share-icon-btn:hover{background:var(--brand-mist);color:var(--brand-deep);transform:translateY(-2px)}
.related-article-card .cover{transition:transform .5s ease}
.related-article-card:hover .cover{transform:scale(1.05)}
.related-article-card{
  box-shadow:var(--shadow);
  transition:box-shadow .2s,transform .2s;
}
.related-article-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
}
.text-clamp-2{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.no-article-empty{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:4rem 1.5rem;
  border-radius:1.5rem;
  background:var(--brand-mist);
  border:1px dashed #c9d9e7;
  color:var(--brand-deep);
  box-shadow:var(--shadow);
}
.scroll-top{
  position:fixed;
  right:1.2rem;
  bottom:1.2rem;
  width:2.9rem;
  height:2.9rem;
  border-radius:9999px;
  background:var(--brand-deep);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 14px 28px -12px rgba(29,76,109,.32);
  transition:background .2s,transform .2s;
  z-index:45;
}
.scroll-top:hover{background:#163b57;transform:translateY(-3px)}
@media(min-width:768px){
  .article-body img{cursor:zoom-in}
}

/* roulang page: category1 */
:root {
            --primary: #2E6E9E;
            --prim-deep: #1D4C6D;
            --prim-light: #E8F1F8;
            --accent: #D98A3B;
            --ink: #1E2C3A;
            --ink-soft: #536E81;
            --ink-mute: #7B93A7;
            --line: #DCE7F0;
            --divider: #EEF3F7;
            --bg: #F5F8FC;
            --card-radius: 16px;
            --shadow-card: 0 1px 2px rgba(19, 42, 60, 0.05), 0 10px 30px -12px rgba(19, 42, 60, 0.08);
            --shadow-card-lg: 0 2px 4px rgba(19, 42, 60, 0.06), 0 18px 40px -16px rgba(19, 42, 60, 0.16);
            --shadow-dock: 0 2px 10px rgba(19, 42, 60, 0.04), 0 10px 30px -15px rgba(19, 42, 60, 0.10);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        summary {
            font-family: inherit;
        }

        .safe-area {
            margin-inline: auto;
            max-width: 80rem;
            padding-inline: 1rem;
        }

        @media (min-width: 768px) {
            .safe-area {
                padding-inline: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .safe-area {
                padding-inline: 2rem;
            }
        }

        .section-pad {
            padding-block: 4.5rem;
        }

        @media (min-width: 1024px) {
            .section-pad {
                padding-block: 7rem;
            }
        }

        .shadow-card {
            box-shadow: var(--shadow-card);
        }

        .shadow-dock {
            box-shadow: var(--shadow-dock);
        }

        .soft-card {
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.24s ease, transform 0.24s ease, border-color 0.24s ease;
        }

        .soft-card:hover {
            box-shadow: var(--shadow-card-lg);
            transform: translateY(-3px);
            border-color: #C9D8E4;
        }

        .nav-pill {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            padding: 0.5rem 0.9rem;
            font-size: 0.875rem;
            color: var(--ink-soft);
            transition: background 0.2s ease, color 0.2s ease;
            white-space: nowrap;
        }

        .nav-pill:hover {
            background: var(--prim-light);
            color: var(--prim-deep);
        }

        .nav-pill.active {
            background: var(--prim-light);
            color: var(--primary);
            font-weight: 600;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 42px;
            border-radius: 0.5rem;
            padding: 0 1.15rem;
            font-size: 0.875rem;
            font-weight: 600;
            line-height: 1;
            border: 0;
            cursor: pointer;
            outline: none;
            transition: background 0.2s ease, color 0.2s ease, transform 0.16s ease, box-shadow 0.2s ease, border-color 0.2s ease;
            white-space: nowrap;
        }

        .btn:focus-visible,
        .focus-ring:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 12px 26px -12px rgba(29, 76, 109, 0.55);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.99);
            box-shadow: none;
        }

        .btn-secondary {
            background: #fff;
            border: 1px solid var(--line);
            color: var(--prim-deep);
        }

        .btn-secondary:hover {
            background: var(--prim-light);
            border-color: #C9D8E4;
            transform: translateY(-1px);
        }

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

        .btn-accent:hover {
            background: #c8782a;
            transform: translateY(-1px);
            box-shadow: 0 12px 26px -12px rgba(217, 138, 59, 0.5);
        }

        .btn-accent-outline {
            background: rgba(217, 138, 59, 0.12);
            border: 1px solid rgba(217, 138, 59, 0.65);
            color: #fff;
        }

        .btn-accent-outline:hover {
            background: var(--accent);
            transform: translateY(-1px);
            box-shadow: 0 12px 26px -12px rgba(217, 138, 59, 0.5);
        }

        .hero-bg {
            background:
                linear-gradient(rgba(245, 248, 252, 0.94), rgba(255, 255, 255, 0.97)),
                url("/assets/images/backpic/back-1.png") center / cover no-repeat;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            border-radius: 999px;
            background: var(--prim-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.28rem 0.6rem;
            line-height: 1.2;
        }

        .status-badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            border-radius: 999px;
            background: rgba(217, 138, 59, 0.12);
            color: #B46D22;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.28rem 0.6rem;
            line-height: 1.2;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            color: var(--prim-deep);
        }

        .eyebrow::before {
            content: "";
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            border-radius: 999px;
            background: var(--bg);
            border: 1px solid var(--line);
            padding: 0.3rem 0.65rem;
            font-size: 0.75rem;
            color: var(--ink-soft);
        }

        .dots-bg {
            background-image: radial-gradient(rgba(29, 76, 109, 0.12) 1px, transparent 1px);
            background-size: 14px 14px;
        }

        .faq-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 1rem;
            padding: 1.15rem 1.25rem;
            box-shadow: 0 1px 2px rgba(19, 42, 60, 0.03), 0 6px 16px -12px rgba(19, 42, 60, 0.08);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-card:hover {
            border-color: #C9D8E4;
            box-shadow: var(--shadow-card);
        }

        .faq-card summary {
            list-style: none;
            cursor: pointer;
            font-weight: 600;
            color: var(--ink);
            font-size: 0.95rem;
            line-height: 1.5;
            padding-right: 2rem;
            position: relative;
        }

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

        .faq-card summary::after {
            content: "+";
            position: absolute;
            right: 0.1rem;
            top: 0.1rem;
            width: 1.75rem;
            height: 1.75rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            background: var(--prim-light);
            color: var(--primary);
            font-size: 1.1rem;
            font-weight: 400;
            transition: transform 0.2s ease, background 0.2s ease;
        }

        .faq-card[open] summary::after {
            transform: rotate(45deg);
            background: var(--prim-deep);
            color: #fff;
        }

        .clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .clamp-3 {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                scroll-behavior: auto !important;
                transition-duration: 0.01ms !important;
            }
        }

/* 补充移动菜单与列表间隔 */
        .mobile-nav-link {
            display: block;
            border-radius: 0.75rem;
            padding: 0.6rem 0.75rem;
            font-size: 0.9rem;
            color: var(--ink-soft);
            transition: background 0.2s ease, color 0.2s ease;
        }
        .mobile-nav-link:hover {
            background: var(--prim-light);
            color: var(--prim-deep);
        }
        .mobile-nav-link.active {
            background: var(--prim-light);
            color: var(--primary);
            font-weight: 600;
        }
        .border-thin-left {
            border-left: 2px solid var(--line);
        }
        @media (min-width: 768px) {
            .md\:border-thin-left {
                border-left: 2px solid var(--line);
            }
        }

/* roulang page: category2 */
:root {
            --bg: #F5F8FC;
            --card: #FFFFFF;
            --primary: #2E6E9E;
            --primary-deep: #1D4C6D;
            --primary-light: #E8F1F8;
            --accent: #D98A3B;
            --text-main: #1E2C3A;
            --text-sub: #536E81;
            --text-weak: #7B93A7;
            --border: #DCE7F0;
            --divider: #EEF3F7;
            --shadow-card: 0 1px 2px rgba(19, 42, 60, 0.05), 0 10px 30px -12px rgba(19, 42, 60, 0.08);
            --shadow-hover: 0 2px 4px rgba(19, 42, 60, 0.06), 0 18px 40px -16px rgba(19, 42, 60, 0.16);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
        }

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

        .safe-area {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        .dock-wrap {
            position: sticky;
            top: 16px;
            z-index: 50;
            padding-top: 0;
        }

        .dock-inner {
            background: rgba(255, 255, 255, .88);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(220, 231, 240, .9);
            box-shadow: var(--shadow-card);
        }

        .nav-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: #536E81;
            line-height: 1.4;
            white-space: nowrap;
            transition: background .2s ease, color .2s ease;
        }

        .nav-pill:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-pill.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-search {
            width: 180px;
            height: 38px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 14px;
            border-radius: 999px;
            background: #F2F6FA;
            border: 1px solid var(--border);
            color: var(--text-weak);
            font-size: 13px;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 110, 158, .12);
        }

        .nav-search input {
            width: 100%;
            border: 0;
            background: transparent;
            outline: none;
            font-size: 13px;
            color: var(--text-main);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 14px;
            line-height: 1;
            padding: 13px 18px;
            cursor: pointer;
            border: 1px solid transparent;
            transition: all .22s ease;
            outline: none;
            white-space: nowrap;
        }

        .btn:focus-visible,
        .nav-pill:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: #28618d;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-primary:active {
            transform: translateY(0) scale(.98);
        }

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

        .btn-deep:hover {
            background: #1a4361;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-deep:active {
            transform: translateY(0) scale(.98);
        }

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

        .btn-accent:hover {
            background: #c97c2c;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-accent:active {
            transform: translateY(0) scale(.98);
        }

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

        .btn-outline:hover {
            background: var(--primary-light);
            border-color: #cbdde9;
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-outline:active {
            transform: translateY(0) scale(.98);
        }

        .btn-fav {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            min-height: 38px;
            padding: 0 14px;
            border-radius: 999px;
            background: #fff8f0;
            color: #b96f26;
            border: 1px solid #eedcc8;
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: all .2s ease;
        }

        .btn-fav:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-hover);
        }

        .btn-fav.done {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .icon-btn {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            color: var(--text-sub);
            border: 1px solid var(--border);
            background: #fff;
            cursor: pointer;
            transition: all .2s ease;
        }

        .icon-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .02em;
            color: var(--primary);
            text-transform: uppercase;
        }

        .eyebrow::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 999px;
            background: var(--accent);
        }

        .section-number {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: .04em;
        }

        .section-title {
            margin-top: 12px;
            color: var(--primary-deep);
            font-weight: 600;
            letter-spacing: -.01em;
            line-height: 1.3;
        }

        .text-body {
            color: var(--text-sub);
        }

        .text-weak {
            color: var(--text-weak);
        }

        .card {
            background: var(--card);
            border-radius: 1rem;
            border: 1px solid rgba(220, 231, 240, .86);
            box-shadow: var(--shadow-card);
            transition: transform .25s ease, box-shadow .25s ease;
        }

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

        .num-badge {
            width: 48px;
            height: 48px;
            border-radius: 999px;
            background: var(--primary-light);
            border: 1px solid rgba(46, 110, 158, .18);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: -.01em;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary-deep);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.2;
            border: 1px solid rgba(46, 110, 158, .12);
        }

        .meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-sub);
            background: #f7fafc;
            border: 1px solid var(--border);
            padding: 5px 10px;
            border-radius: 999px;
        }

        .divider-y {
            border-top: 1px solid var(--divider);
        }

        .hero-bg-image {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: .28;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(245, 248, 252, .98) 0%, rgba(245, 248, 252, .9) 55%, rgba(245, 248, 252, .72) 100%);
        }

        .stat-card {
            background: rgba(255, 255, 255, .92);
            border-radius: 18px;
            padding: 20px 22px;
            border: 1px solid rgba(220, 231, 240, .85);
            box-shadow: var(--shadow-card);
        }

        .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

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

        .deep-wrap .text-weak {
            color: rgba(255, 255, 255, .68);
        }

        .deep-panel-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 16px;
            padding: 20px;
            transition: background .2s ease;
        }

        .deep-panel-card:hover {
            background: rgba(255, 255, 255, .14);
        }

        .faq-row {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: box-shadow .22s ease;
        }

        .faq-row:hover {
            box-shadow: var(--shadow-card);
        }

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

        .faq-summary {
            padding: 20px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            list-style: none;
            color: var(--text-main);
            font-weight: 600;
            font-size: 16px;
            line-height: 1.5;
        }

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

        .faq-chevron {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform .25s ease, background .25s ease;
        }

        .faq-row[open] .faq-chevron {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-content {
            padding: 0 22px 20px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.85;
        }

        .footer-link {
            display: block;
            transition: color .2s ease;
            color: rgba(255, 255, 255, .65);
        }

        .footer-link:hover {
            color: #fff;
        }

        .outline-grid {
            position: absolute;
            right: -80px;
            top: -80px;
            width: 300px;
            height: 300px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, .14);
        }

        .outline-grid::after {
            content: "";
            position: absolute;
            right: 58px;
            top: 58px;
            width: 180px;
            height: 180px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, .08);
        }

        @media (max-width: 768px) {
            .safe-area {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-title {
                font-size: 24px;
                line-height: 1.4;
            }

            .nav-search {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .hero-bg-overlay {
                background: linear-gradient(180deg, rgba(245, 248, 252, .98) 0%, rgba(245, 248, 252, .94) 60%, rgba(245, 248, 252, .82) 100%);
            }
        }