/* roulang page: index */
:root {
            --primary: #f43f86;
            --accent: #14b8a6;
            --ink: #0b0b10;
            --surface: #15151c;
            --surface2: #1e1e28;
            --line: rgba(255, 255, 255, .09);
            --text: #f4f4f5;
            --muted: #a3a3ad;
            --radius-card: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, .35);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, .45);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, .55);
            --transition: .25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--ink);
            color: var(--text);
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s, border-color .2s, background .2s;
        }
        summary {
            list-style: none;
        }
        summary::-webkit-details-marker {
            display: none;
        }
        ::selection {
            background: rgba(244, 63, 134, .25);
        }
        .container {
            max-width: 80rem;
            margin: 0 auto;
            padding: 0 1rem;
        }
        @media (min-width: 768px) {
            .container {
                padding: 0 2rem;
            }
        }
        .section {
            padding: 4rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 6rem 0;
            }
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: .75rem 1.8rem;
            font-weight: 600;
            font-size: .9rem;
            border: none;
            cursor: pointer;
            transition: background .2s, transform .15s, box-shadow .2s;
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:hover {
            background: #ff5ea0;
            box-shadow: var(--shadow-md);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: scale(.98);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--text);
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: .75rem 1.8rem;
            font-weight: 500;
            font-size: .9rem;
            cursor: pointer;
            transition: border-color .2s, color .2s, transform .15s;
        }
        .btn-ghost:hover {
            color: var(--primary);
            border-color: rgba(244, 63, 134, .5);
        }
        .btn-ghost:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-ghost:active {
            transform: scale(.98);
        }
        .chip {
            display: inline-flex;
            align-items: center;
            border-radius: 999px;
            border: 1px solid var(--line);
            padding: .35rem 1rem;
            font-size: .75rem;
            color: var(--muted);
            transition: color .2s, border-color .2s, background .2s;
            cursor: pointer;
            white-space: nowrap;
        }
        .chip:hover {
            color: var(--primary);
            border-color: rgba(244, 63, 134, .5);
        }
        .chip-active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .chip-active:hover {
            background: #ff5ea0;
            color: #fff;
            border-color: #ff5ea0;
        }
        .card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform .3s, border-color .3s, box-shadow .3s, background .3s;
            box-shadow: var(--shadow-sm);
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(244, 63, 134, .3);
            box-shadow: var(--shadow-md);
            background: var(--surface2);
        }
        .badge {
            display: inline-block;
            background: rgba(20, 184, 166, .15);
            color: var(--accent);
            border-radius: 999px;
            padding: .2rem .75rem;
            font-size: .75rem;
            font-weight: 500;
        }
        .badge-hot {
            background: rgba(244, 63, 134, .15);
            color: var(--primary);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.1;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 3rem;
            }
        }
        .stat-item {
            border-top: 2px solid rgba(244, 63, 134, .5);
            padding-top: 1.5rem;
            transition: background .25s;
            border-radius: 0 0 12px 12px;
            padding-left: .5rem;
            padding-right: .5rem;
            padding-bottom: .5rem;
        }
        .stat-item:hover {
            background: var(--surface2);
        }
        .card-hover-img img {
            transition: transform .4s ease;
        }
        .card-hover-img:hover img {
            transform: scale(1.05);
        }
        .img-overlay {
            position: relative;
        }
        .img-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, .2) 0%, rgba(0, 0, 0, .6) 100%);
        }
        .hero-glow {
            background:
                radial-gradient(ellipse at 20% 20%, rgba(244, 63, 134, .18), transparent 55%),
                radial-gradient(ellipse at 80% 80%, rgba(20, 184, 166, .12), transparent 50%),
                linear-gradient(180deg, rgba(11, 11, 16, .7) 0%, rgba(11, 11, 16, .9) 100%);
        }
        .cta-glow {
            background:
                radial-gradient(ellipse at 20% 30%, rgba(244, 63, 134, .16), transparent 55%),
                radial-gradient(ellipse at 80% 70%, rgba(20, 184, 166, .1), transparent 50%);
        }
        .details-card summary {
            cursor: pointer;
            list-style: none;
        }
        .details-card summary .plus-icon {
            transition: transform .3s;
        }
        .details-card[open] summary .plus-icon {
            transform: rotate(45deg);
        }
        input,
        textarea,
        select {
            background: var(--surface2);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: .75rem 1rem;
            font-size: .875rem;
            color: var(--text);
            width: 100%;
            transition: border-color .2s, box-shadow .2s;
        }
        input::placeholder,
        textarea::placeholder {
            color: var(--muted);
        }
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
            border-color: rgba(244, 63, 134, .5);
            box-shadow: 0 0 0 3px rgba(244, 63, 134, .15);
        }
        .fa-icon-circle {
            width: 2.5rem;
            height: 2.5rem;
            border-radius: .75rem;
            background: rgba(244, 63, 134, .1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .fa-icon-circle svg {
            width: 1.25rem;
            height: 1.25rem;
            stroke: currentColor;
            fill: none;
            stroke-width: 2;
        }
        .step-line {
            position: relative;
        }
        .step-line::before {
            content: '';
            position: absolute;
            top: 3.5rem;
            left: calc(50% + 4rem);
            width: calc(100% - 8rem);
            border-top: 2px dashed rgba(255, 255, 255, .12);
        }
        @media (max-width: 1023px) {
            .step-line::before {
                display: none;
            }
        }
        .step-line:last-child::before {
            display: none;
        }
        .back-top {
            position: fixed;
            bottom: 1.5rem;
            right: 1.5rem;
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 50%;
            background: var(--surface2);
            border: 1px solid var(--line);
            color: var(--muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: color .2s, border-color .2s, background .2s, transform .15s;
            z-index: 60;
        }
        .back-top:hover {
            color: var(--primary);
            border-color: rgba(244, 63, 134, .5);
        }
        .back-top:active {
            transform: scale(.95);
        }
        .mobile-nav {
            display: none;
        }
        @media (max-width: 767px) {
            .mobile-nav-open .mobile-nav {
                display: block;
                animation: slideIn .25s ease;
            }
            .desktop-nav {
                display: none;
            }
        }
        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .hover-img-scale img {
            transition: transform .4s ease;
        }
        .hover-img-scale:hover img {
            transform: scale(1.05);
        }
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .line-clamp-3 {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -.01em;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
        }
        .section-desc {
            color: var(--muted);
            font-size: .95rem;
            line-height: 1.7;
            max-width: 68ch;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            transition: transform .3s, border-color .3s, background .3s, box-shadow .3s;
        }
        .feature-card:hover {
            border-color: rgba(244, 63, 134, .4);
            background: var(--surface2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .list-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform .3s, border-color .3s, box-shadow .3s, background .3s;
            display: flex;
            gap: .5rem;
        }
        .list-card:hover {
            border-color: rgba(244, 63, 134, .3);
            box-shadow: var(--shadow-md);
            background: var(--surface2);
            transform: translateY(-2px);
        }
        .pagination-btn {
            width: 2.25rem;
            height: 2.25rem;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: .875rem;
            background: var(--surface2);
            border: 1px solid var(--line);
            color: var(--muted);
            transition: all .2s;
            cursor: pointer;
        }
        .pagination-btn:hover {
            color: var(--primary);
            border-color: rgba(244, 63, 134, .4);
        }
        .pagination-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .mini-card {
            display: flex;
            gap: .75rem;
            align-items: center;
            padding: .5rem;
            border-radius: 12px;
            transition: background .2s, border-color .2s;
            border: 1px solid transparent;
        }
        .mini-card:hover {
            background: var(--surface2);
            border-color: var(--line);
        }
        .mini-card img {
            width: 5rem;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .select-wrap {
            position: relative;
        }
        .select-wrap select {
            appearance: none;
            padding-right: 2rem;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="%23a3a3ad" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
            background-repeat: no-repeat;
            background-position: right .75rem center;
        }
        .nav-link {
            position: relative;
            font-size: .875rem;
            font-weight: 500;
            color: var(--text);
            padding: .5rem 0;
            transition: color .2s;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

/* roulang page: category1 */
:root {
  --primary: #f43f86;
  --accent: #14b8a6;
  --ink: #0b0b10;
  --surface: #15151c;
  --surface2: #1e1e28;
  --line: rgba(255,255,255,.09);
  --text: #f4f4f5;
  --muted: #a3a3ad;
  --radius-card: 16px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.35);
  --shadow-md: 0 8px 24px rgba(0,0,0,.45);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.55);
  --transition: .25s ease;
}
html { scroll-behavior: smooth; }
body {
  background: var(--ink);
  color: var(--text);
  font-family: 'Inter','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s, border-color .2s, background .2s; }
button { font-family: inherit; }
summary { list-style: none; cursor: pointer; }
summary::-webkit-details-marker { display: none; }
::selection { background: rgba(244,63,134,.25); }
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;
}
a:active, button:active { transform: scale(.98); }
.container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 768px) {
  .container { padding: 0 2rem; }
}
.section { padding: 4rem 0; }
@media (min-width: 768px) {
  .section { padding: 6rem 0; }
}
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--primary); color: #fff; border-radius: 999px;
  padding: .75rem 1.8rem; font-weight: 600; font-size: .9rem;
  border: none; cursor: pointer; box-shadow: var(--shadow-sm);
  transition: background .2s, transform .15s, box-shadow .2s;
}
.btn-primary:hover { background: #ff5ea0; box-shadow: var(--shadow-md); }
.btn-primary:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-primary:active { transform: scale(.98); }
.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--text); border: 1px solid var(--line);
  border-radius: 999px; padding: .75rem 1.8rem; font-weight: 500; font-size: .9rem;
  cursor: pointer; transition: border-color .2s, color .2s, transform .15s;
}
.btn-ghost:hover { color: var(--primary); border-color: rgba(244,63,134,.5); }
.btn-ghost:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-ghost:active { transform: scale(.98); }
.chip {
  display: inline-flex; align-items: center; border-radius: 999px;
  border: 1px solid var(--line); padding: .35rem 1rem; font-size: .75rem;
  color: var(--muted); transition: color .2s, border-color .2s, background .2s;
  cursor: pointer; white-space: nowrap;
}
.chip:hover { color: var(--primary); border-color: rgba(244,63,134,.5); }
.chip-active { background: var(--primary); color: #fff; border-color: var(--primary); }
.chip-active:hover { background: #ff5ea0; color: #fff; border-color: #ff5ea0; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card);
  overflow: hidden; transition: transform .3s, border-color .3s, box-shadow .3s, background .3s;
  box-shadow: var(--shadow-sm);
}
.card:hover {
  transform: translateY(-4px); border-color: rgba(244,63,134,.3);
  box-shadow: var(--shadow-md); background: var(--surface2);
}
.badge {
  display: inline-block; background: rgba(20,184,166,.15);
  color: var(--accent); border-radius: 999px; padding: .2rem .75rem;
  font-size: .75rem; font-weight: 500;
}
.badge-hot { background: rgba(244,63,134,.15); color: var(--primary); }
.list-row {
  display: flex; gap: 1rem; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-card);
  padding: 1rem; transition: border-color .3s, box-shadow .3s, background .3s;
}
.list-row:hover { border-color: rgba(244,63,134,.3); box-shadow: var(--shadow-md); background: var(--surface2); }
.list-row-img {
  flex-shrink: 0; width: 140px; border-radius: 12px; overflow: hidden;
}
.list-row-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.list-row:hover .list-row-img img { transform: scale(1.05); }
@media (min-width: 768px) {
  .list-row-img { width: 200px; }
}
.line-clamp-2 {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.hero-glow {
  background:
    radial-gradient(ellipse at 20% 20%, rgba(244,63,134,.18), transparent 55%),
    radial-gradient(ellipse at 80% 80%, rgba(20,184,166,.12), transparent 50%),
    linear-gradient(180deg, rgba(11,11,16,.55) 0%, rgba(11,11,16,.88) 100%);
}
.cta-glow {
  background:
    radial-gradient(ellipse at 20% 30%, rgba(244,63,134,.16), transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(20,184,166,.1), transparent 50%);
}
.nav-link {
  position: relative; color: var(--muted); font-size: .875rem; font-weight: 500;
  transition: color .2s; background: none; border: none; padding: .5rem 0; cursor: pointer;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2px; background: var(--primary); border-radius: 2px;
}
.mobile-nav { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.mobile-nav.open { max-height: 520px; overflow-y: auto; }
.back-top {
  position: fixed; bottom: 1.5rem; right: 1.5rem; width: 2.75rem; height: 2.75rem;
  border-radius: 999px; background: var(--surface2); border: 1px solid var(--line);
  color: var(--muted); display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md); transition: all .2s; z-index: 50; cursor: pointer;
}
.back-top:hover { color: var(--primary); border-color: rgba(244,63,134,.5); }
.back-top:active { transform: scale(.98); }
input, textarea, select {
  background: var(--surface2); border: 1px solid var(--line); border-radius: 12px;
  padding: .75rem 1rem; font-size: .875rem; color: var(--text); width: 100%;
  transition: border-color .2s, box-shadow .2s;
}
input:focus, textarea:focus, select:focus {
  border-color: rgba(244,63,134,.5); box-shadow: 0 0 0 3px rgba(244,63,134,.2); outline: none;
}
input::placeholder, textarea::placeholder { color: var(--muted); }
select option { background: var(--surface2); color: var(--text); }
.pagination {
  display: flex; gap: .5rem; align-items: center; flex-wrap: wrap;
}
.pagination a, .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 2.5rem; height: 2.5rem; border-radius: 12px;
  background: var(--surface2); border: 1px solid var(--line);
  color: var(--muted); font-size: .875rem; transition: all .2s;
  padding: 0 .75rem;
}
.pagination a:hover { border-color: rgba(244,63,134,.5); color: var(--primary); }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
.footer-link { color: var(--muted); font-size: .875rem; transition: color .2s; }
.footer-link:hover { color: var(--primary); }
.tag-chip {
  display: inline-flex; align-items: center; border-radius: 999px;
  border: 1px solid var(--line); padding: .3rem .9rem; font-size: .75rem;
  color: var(--muted); transition: all .2s; cursor: pointer;
}
.tag-chip:hover { color: var(--primary); border-color: rgba(244,63,134,.5); }
.breadcrumb a { color: var(--muted); transition: color .2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .current { color: var(--primary); }