/* roulang page: index */
:root {
  --primary: #4A1E70;
  --primary-dark: #1C1030;
  --primary-light: #7E4DB8;
  --cta: #00E5A0;
  --gold: #FFB800;
  --bg-soft: #F6F4F9;
  --card-bg: #FFFFFF;
  --text-main: #221432;
  --text-weak: #6E6480;
  --border: #E3DCEF;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-pill: 50px;
  --shadow-sm: 0 4px 16px rgba(30,16,46,.08);
  --shadow-lg: 0 8px 30px rgba(30,16,46,.14);
  --section-pad: 90px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background: #fff;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: var(--primary); transition: color .2s ease; }
a:hover { color: var(--cta); }
img { max-width: 100%; height: auto; }
button, input, textarea { font-family: inherit; }
.container { max-width: 1200px; }

.btn-cta {
  background: var(--cta);
  color: var(--primary-dark);
  border: none;
  border-radius: var(--radius-pill);
  padding: .75rem 1.9rem;
  font-weight: 700;
  font-size: .95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  transition: all .25s ease;
  box-shadow: 0 4px 16px rgba(0,229,160,.2);
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,229,160,.38); color: var(--primary-dark); background: #1bf5af; }
.btn-cta:active { transform: translateY(0); box-shadow: 0 4px 14px rgba(0,229,160,.25); }
.btn-outline-cta {
  background: transparent;
  color: var(--cta);
  border: 2px solid var(--cta);
  border-radius: var(--radius-pill);
  padding: .7rem 1.8rem;
  font-weight: 600;
  font-size: .92rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  transition: all .25s ease;
}
.btn-outline-cta:hover { background: var(--cta); color: var(--primary-dark); box-shadow: 0 6px 20px rgba(0,229,160,.3); transform: translateY(-2px); }
.btn-outline-cta:active { transform: translateY(0); }

.text-weak { color: var(--text-weak); }
.section { padding: var(--section-pad) 0; }
@media (max-width: 767px) { .section { padding: 56px 0; } }
.section-head { margin-bottom: 3rem; }
.section-head h2 { color: var(--primary); font-weight: 800; letter-spacing: .01em; }
.section-head p { color: var(--text-weak); max-width: 720px; margin: .75rem auto 0; font-size: 1rem; }
.section-tag {
  display: inline-block;
  background: rgba(74,30,112,.08);
  color: var(--primary);
  padding: .32rem .95rem;
  border-radius: 50px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  margin-bottom: .75rem;
}
.bg-soft { background: var(--bg-soft); }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  background: rgba(28,16,48,.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled { background: rgba(28,16,48,.97); box-shadow: 0 6px 28px rgba(0,0,0,.28); }
.navbar { padding: .85rem 0; }
.navbar-brand {
  font-size: 1.16rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .01em;
  line-height: 1.4;
  transition: color .2s;
}
.navbar-brand:hover { color: var(--cta); }
.navbar-nav .nav-item { margin: 0 .22rem; }
.navbar-nav .nav-link {
  color: #D6C9E8;
  font-weight: 500;
  padding: .5rem .95rem;
  border-radius: 8px;
  transition: all .2s ease;
}
.navbar-nav .nav-link:hover { color: var(--cta); background: rgba(255,255,255,.07); }
.navbar-nav .nav-link.active { color: var(--cta); background: rgba(0,229,160,.14); }
.navbar .btn-cta { margin-left: .5rem; padding: .6rem 1.5rem; font-size: .94rem; }
.navbar-toggler { border: 1px solid rgba(255,255,255,.26); padding: .3rem .6rem; }
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(0,229,160,.25); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='%23F8F4FF' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
@media (max-width: 991.98px) {
  .navbar-nav { padding: 1rem 0; }
  .navbar-nav .nav-link { padding: .7rem 1rem; }
  .navbar .btn-cta { margin: .6rem 0 1rem; width: 100%; justify-content: center; }
}

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 96px;
  background: var(--primary-dark) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(28,16,48,.95) 25%, rgba(74,30,112,.74) 62%, rgba(28,16,48,.45));
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; }
.hero-content { color: #F8F4FF; }
.hero-title {
  font-size: clamp(2.15rem, 4.2vw, 3.2rem);
  font-weight: 800;
  line-height: 1.22;
  color: #fff;
  margin-bottom: 1.25rem;
}
.hero-sub {
  font-size: 1.1rem;
  color: #D6C9E8;
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: 1.75rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-image { position: relative; }
.hero-image img {
  border-radius: 22px;
  box-shadow: 0 20px 60px rgba(0,0,0,.42);
  transform: rotate(2deg) scale(.98);
  width: 100%;
  object-fit: cover;
}
.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 22px;
  background: linear-gradient(to top, rgba(28,16,48,.4), transparent 55%);
}
.hero-badge {
  position: absolute;
  top: 18px;
  right: 20px;
  background: var(--gold);
  color: #1C1030;
  padding: .35rem .85rem;
  border-radius: 50px;
  font-size: .78rem;
  font-weight: 800;
  z-index: 2;
  transform: rotate(6deg);
}
@media (max-width: 991.98px) {
  .hero { padding-top: 110px; padding-bottom: 70px; }
  .hero-image { margin-top: 2.5rem; }
}

.promo-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 2rem 1.8rem;
  height: 100%;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(227,220,239,.45);
  transition: box-shadow .3s, transform .3s;
  position: relative;
}
.promo-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.promo-card.featured { transform: translateY(-16px) scale(1.04); border: 2px solid var(--cta); z-index: 2; box-shadow: var(--shadow-lg); }
.promo-card.featured:hover { transform: translateY(-18px) scale(1.04); box-shadow: 0 14px 44px rgba(30,16,46,.18); }
.promo-label { font-size: .8rem; font-weight: 700; letter-spacing: .04em; color: var(--primary); text-transform: uppercase; }
.promo-card.featured .promo-label { color: #00c98d; }
.promo-value { font-size: 1.95rem; font-weight: 800; color: var(--primary); margin: .5rem 0 .75rem; line-height: 1.2; }
.promo-card p { color: var(--text-weak); font-size: .95rem; line-height: 1.7; margin-bottom: 1.3rem; }
.promo-badge {
  position: absolute;
  top: -12px;
  right: 22px;
  background: var(--gold);
  color: #1C1030;
  padding: .32rem .85rem;
  font-size: .74rem;
  font-weight: 800;
  border-radius: 50px;
  box-shadow: 0 4px 12px rgba(255,184,0,.3);
}
@media (max-width: 991.98px) {
  .promo-card.featured { transform: none; }
}

.plan-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 1.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(227,220,239,.35);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: box-shadow .3s, transform .3s;
}
.plan-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.plan-card.featured {
  border: 2px solid var(--cta);
  background: linear-gradient(180deg, #2B154A 0%, #1C1030 100%);
  color: #fff;
  transform: translateY(-6px);
}
.plan-card.featured:hover { transform: translateY(-9px); }
.plan-name { font-size: 1.25rem; font-weight: 700; color: var(--primary); margin-bottom: .35rem; }
.plan-card.featured .plan-name { color: var(--cta); }
.plan-condition { color: var(--text-weak); font-size: .9rem; margin-bottom: 1.25rem; }
.plan-card.featured .plan-condition { color: #C8B8E4; }
.plan-list { list-style: none; padding: 0; margin: 0 0 1.5rem; flex-grow: 1; }
.plan-list li { padding: .4rem 0 .4rem 1.6rem; position: relative; color: var(--text-main); font-size: .93rem; }
.plan-list li::before { content: '✓'; position: absolute; left: 0; color: var(--cta); font-weight: 800; }
.plan-card.featured .plan-list li { color: #EBE1F8; }
.plan-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--gold);
  color: #1C1030;
  padding: .25rem .7rem;
  font-size: .74rem;
  border-radius: 50px;
  font-weight: 800;
}
@media (max-width: 991.98px) {
  .plan-card.featured { transform: none; }
}

.news-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: box-shadow .3s, transform .3s;
}
.news-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.news-thumb { display: block; overflow: hidden; }
.news-thumb img { width: 100%; object-fit: cover; transition: transform .5s ease; aspect-ratio: 16/9; }
.news-card:hover .news-thumb img { transform: scale(1.04); }
.news-body { padding: 1.4rem 1.5rem; display: flex; flex-direction: column; flex-grow: 1; }
.news-card-sm { flex-direction: row; align-items: center; height: auto; }
.news-card-sm .news-thumb { width: 136px; min-width: 136px; height: 100px; }
.news-card-sm .news-thumb img { aspect-ratio: 16/10; height: 100%; }
.news-card-sm .news-body { padding: .9rem 1rem; }
.news-card-sm .news-body h3 { font-size: .98rem; margin-bottom: .3rem; }
.news-card-sm .news-body p { display: none; }
.news-title { font-size: 1.1rem; font-weight: 700; margin-bottom: .4rem; }
.news-title a { color: var(--text-main); }
.news-title a:hover { color: var(--cta); }
.news-summary { color: var(--text-weak); font-size: .92rem; line-height: 1.7; margin-bottom: .9rem; }
.news-meta { display: flex; align-items: center; justify-content: space-between; margin-top: auto; color: var(--text-weak); font-size: .84rem; }
.news-meta a { color: var(--primary); font-weight: 600; }
.news-meta a:hover { color: var(--cta); }
.badge-cat { background: var(--gold); color: #1C1030; padding: .3rem .8rem; border-radius: 50px; font-size: .7rem; font-weight: 800; align-self: flex-start; margin-bottom: .7rem; line-height: 1.4; }
.empty-tip { padding: 4rem 0; text-align: center; color: var(--text-weak); background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm); }

.time-section {
  background: var(--primary-dark) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color: #F8F4FF;
  position: relative;
}
.time-section::before { content: ''; position: absolute; inset: 0; background: rgba(28,16,48,.88); }
.time-section .container { position: relative; z-index: 2; text-align: center; }
.time-box { max-width: 760px; margin: 0 auto; }
.time-box h2 { color: #fff; font-weight: 800; margin-bottom: .8rem; }
.time-box p { color: #D6C9E8; max-width: 560px; margin: 0 auto 2rem; }
.countdown { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.count-item {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 16px;
  padding: 1rem 1.4rem;
  min-width: 84px;
  backdrop-filter: blur(4px);
}
.count-item .num { font-size: 2rem; font-weight: 800; color: var(--cta); display: block; line-height: 1.2; }
.count-item .label { font-size: .8rem; color: #C8B8E4; }

.contact-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 2.2rem; border: 1px solid rgba(227,220,239,.4); }
.contact-list { list-style: none; padding: 0; margin: 2rem 0 0; }
.contact-list li { padding: .45rem 0 .45rem 1.8rem; position: relative; color: var(--text-main); font-size: .98rem; }
.contact-list li::before { content: '✔'; position: absolute; left: 0; color: var(--cta); font-weight: 800; }
.form-control {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .8rem 1rem;
  background: #fff;
  color: var(--text-main);
  transition: border .2s, box-shadow .2s;
}
.form-control:focus { border-color: var(--cta); box-shadow: 0 0 0 4px rgba(0,229,160,.15); outline: 0; background: #fff; }
.form-control::placeholder { color: #9A8FAC; }

.faq-accordion .accordion-item {
  border: 1px solid rgba(227,220,239,.5);
  border-radius: var(--radius) !important;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-accordion .accordion-button {
  padding: 1.2rem 1.4rem;
  background: #fff;
  color: var(--text-main);
  font-weight: 600;
  font-size: 1rem;
}
.faq-accordion .accordion-button:not(.collapsed) { background: var(--bg-soft); color: var(--primary); box-shadow: none; }
.faq-accordion .accordion-button:focus { box-shadow: 0 0 0 4px rgba(0,229,160,.12); }
.faq-accordion .accordion-body { color: var(--text-weak); line-height: 1.8; padding: 1.2rem 1.4rem; background: #fff; }

.site-footer { background: var(--primary-dark); color: #C8B8E4; padding: 70px 0 0; }
.site-footer a { color: #C8B8E4; }
.site-footer a:hover { color: var(--cta); }
.footer-logo { display: block; font-size: 1.15rem; font-weight: 800; color: #fff !important; margin-bottom: 1rem; }
.footer-brand p { color: #8E7FA8; font-size: .9rem; max-width: 320px; line-height: 1.7; }
.site-footer h4 { color: #F8F4FF; font-size: 1rem; margin-bottom: 1.1rem; font-weight: 700; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: .55rem; font-size: .9rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 3.5rem; padding: 1.5rem 0; text-align: center; font-size: .85rem; color: #8E7FA8; }

/* roulang page: category1 */
:root {
            --primary: #4A1E70;
            --primary-dark: #1C1030;
            --accent: #00E5A0;
            --gold: #FFB800;
            --light-bg: #F6F4F9;
            --card-bg: #FFFFFF;
            --text-main: #221432;
            --text-muted: #6E6480;
            --border-color: #E3DCEF;
            --radius-card: 14px;
            --radius-btn: 50px;
            --radius-input: 10px;
            --shadow-sm: 0 4px 16px rgba(30, 16, 46, .08);
            --shadow-hover: 0 8px 30px rgba(30, 16, 46, .14);
            --section-space: 84px;
            --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            background: #fff;
            color: var(--text-main);
            line-height: 1.7;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--accent);
        }
        .container {
            max-width: 1200px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(28, 16, 48, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            transition: background .35s ease, box-shadow .35s ease;
        }
        .site-header.scrolled {
            background: rgba(20, 10, 35, .98);
            box-shadow: 0 6px 24px rgba(0, 0, 0, .3);
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            font-size: 1.32rem;
            font-weight: 800;
            color: #fff !important;
            letter-spacing: .5px;
            line-height: 1.2;
            max-width: 280px;
        }
        .navbar-brand:hover {
            color: var(--accent) !important;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, .4);
            border-radius: 8px;
            padding: 4px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 229, 160, .25);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, .85);
            font-weight: 500;
            font-size: .95rem;
            padding: 8px 18px !important;
            border-radius: 30px;
            transition: all .25s ease;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--accent);
            background: rgba(255, 255, 255, .05);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent);
            font-weight: 700;
            background: rgba(0, 229, 160, .08);
        }
        .btn-cta {
            background: var(--accent);
            color: var(--primary-dark) !important;
            border: 2px solid var(--accent);
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: .95rem;
            padding: 10px 28px;
            transition: all .3s ease;
            display: inline-block;
            line-height: 1.4;
        }
        .btn-cta:hover,
        .btn-cta:focus {
            background: #00f0ad;
            border-color: #00f0ad;
            color: var(--primary-dark) !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 160, .35);
        }
        .btn-cta:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(0, 229, 160, .25);
        }
        .btn-outline-cta {
            background: transparent;
            color: var(--accent) !important;
            border: 2px solid var(--accent);
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 10px 28px;
            transition: all .3s ease;
            display: inline-block;
        }
        .btn-outline-cta:hover {
            background: var(--accent);
            color: var(--primary-dark) !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 229, 160, .25);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, .7);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 10px 28px;
            transition: all .3s ease;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary-dark) !important;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 14px 40px;
            font-size: 1.05rem;
        }
        .page-hero {
            background: linear-gradient(130deg, rgba(28, 16, 48, .94) 20%, rgba(74, 30, 112, .82) 70%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 76px 0 62px;
            color: #f8f4ff;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(0, 229, 160, .12) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 22px;
        }
        .page-hero .breadcrumb-item,
        .page-hero .breadcrumb-item.active {
            color: rgba(255, 255, 255, .65);
            font-size: .875rem;
        }
        .page-hero .breadcrumb-item a {
            color: rgba(255, 255, 255, .65);
            transition: color .2s;
        }
        .page-hero .breadcrumb-item a:hover {
            color: var(--accent);
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: 1px;
        }
        .page-hero .lead {
            font-size: 1.1rem;
            color: #d6c9e8;
            max-width: 680px;
            margin-bottom: 0;
            line-height: 1.8;
        }
        .content-sidebar-wrap {
            padding: var(--section-space) 0 50px;
            background: var(--light-bg);
        }
        .content-sidebar-wrap .main-col {
            padding-right: 28px;
        }
        .info-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 34px;
            margin-bottom: 28px;
            transition: transform .3s ease, box-shadow .3s ease;
            border: 1px solid rgba(227, 220, 239, .5);
        }
        .info-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .info-card .section-tag {
            display: inline-block;
            background: rgba(255, 184, 0, .12);
            color: #b37600;
            font-size: .75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .info-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            line-height: 1.35;
        }
        .info-card p {
            color: var(--text-muted);
            font-size: .95rem;
            line-height: 1.85;
            margin-bottom: 18px;
        }
        .info-card .info-img {
            border-radius: 12px;
            width: 100%;
            height: 250px;
            object-fit: cover;
            box-shadow: 0 6px 18px rgba(30, 16, 46, .1);
            transition: transform .4s ease;
        }
        .info-card:hover .info-img {
            transform: scale(1.02);
        }
        .steps-card .step-item {
            background: var(--light-bg);
            border-radius: 12px;
            padding: 28px 22px;
            text-align: center;
            height: 100%;
            border: 1px solid rgba(227, 220, 239, .5);
            transition: all .3s ease;
            position: relative;
        }
        .steps-card .step-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }
        .steps-card .step-num {
            display: inline-block;
            width: 46px;
            height: 46px;
            line-height: 46px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #6a2c9e);
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            margin-bottom: 14px;
        }
        .steps-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .steps-card p {
            font-size: .9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .device-card {
            background: var(--light-bg);
            border-radius: 12px;
            padding: 26px 22px;
            height: 100%;
            border: 1px solid rgba(227, 220, 239, .5);
            transition: all .3s ease;
        }
        .device-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
        }
        .device-card .device-icon {
            font-size: 2.2rem;
            margin-bottom: 12px;
            display: block;
        }
        .device-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .device-card p {
            font-size: .9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .sidebar {
            padding-left: 10px;
        }
        .side-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 26px 24px;
            margin-bottom: 24px;
            border: 1px solid rgba(227, 220, 239, .5);
            transition: box-shadow .3s ease;
        }
        .side-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .side-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light-bg);
            position: relative;
        }
        .side-card h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 36px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .side-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .side-card ul li {
            margin-bottom: 4px;
        }
        .side-card ul li a {
            display: block;
            padding: 8px 12px;
            border-radius: 8px;
            color: var(--text-main);
            font-size: .92rem;
            transition: all .25s ease;
        }
        .side-card ul li a:hover {
            background: rgba(0, 229, 160, .08);
            color: var(--accent);
            padding-left: 16px;
        }
        .side-card ul li a.active {
            background: rgba(74, 30, 112, .06);
            color: var(--primary);
            font-weight: 700;
        }
        .contact-card {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            border: none;
        }
        .contact-card h4 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, .15);
        }
        .contact-card h4::after {
            background: var(--accent);
        }
        .contact-card p {
            color: rgba(255, 255, 255, .75);
            font-size: .9rem;
            margin-bottom: 8px;
            line-height: 1.7;
        }
        .contact-card .btn-cta {
            margin-top: 12px;
            width: 100%;
        }
        .stats-section {
            padding: 70px 0;
            background: var(--card-bg);
        }
        .stats-section .section-head {
            text-align: center;
            margin-bottom: 44px;
        }
        .stats-section .section-head h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--primary);
        }
        .stats-section .section-head p {
            color: var(--text-muted);
            max-width: 520px;
            margin: 12px auto 0;
            font-size: .95rem;
        }
        .stat-item {
            text-align: center;
            padding: 28px 18px;
            background: var(--light-bg);
            border-radius: var(--radius-card);
            border: 1px solid rgba(227, 220, 239, .5);
            transition: all .3s ease;
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: .9rem;
            color: var(--text-muted);
        }
        .faq-section {
            padding: var(--section-space) 0;
            background: var(--light-bg);
        }
        .faq-section .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .faq-section .section-head h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--primary);
        }
        .faq-section .section-head p {
            color: var(--text-muted);
            max-width: 540px;
            margin: 10px auto 0;
            font-size: .95rem;
        }
        .custom-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .custom-accordion .accordion-item {
            border: 1px solid rgba(227, 220, 239, .7);
            border-radius: 14px !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(30, 16, 46, .03);
        }
        .custom-accordion .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            background: #fff;
            padding: 18px 24px;
            border: none;
            transition: all .3s ease;
        }
        .custom-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: rgba(74, 30, 112, .03);
            box-shadow: none;
        }
        .custom-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(0, 229, 160, .15);
            border-color: var(--accent);
        }
        .custom-accordion .accordion-button::after {
            background-size: 1rem;
        }
        .custom-accordion .accordion-body {
            padding: 18px 24px;
            color: var(--text-muted);
            font-size: .93rem;
            line-height: 1.75;
            background: #fff;
            border-top: 1px solid rgba(227, 220, 239, .3);
        }
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary-dark), #261446 60%, #331554);
            position: relative;
            overflow: hidden;
            text-align: center;
            color: #fff;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 229, 160, .15) 0%, transparent 65%);
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(255, 184, 0, .12) 0%, transparent 60%);
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: #fff;
        }
        .cta-section p {
            color: rgba(255, 255, 255, .75);
            max-width: 520px;
            margin: 0 auto 32px;
            font-size: 1rem;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            font-size: 1.05rem;
            padding: 14px 42px;
            box-shadow: 0 0 30px rgba(0, 229, 160, .3);
        }
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .65);
            padding: 60px 0 0;
            font-size: .9rem;
        }
        .site-footer .footer-brand .footer-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .footer-logo:hover {
            color: var(--accent);
        }
        .site-footer p {
            line-height: 1.7;
            margin-bottom: 0;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }
        .site-footer h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 26px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, .65);
            transition: all .25s ease;
        }
        .site-footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 44px;
            padding: 20px 0;
            text-align: center;
            font-size: .85rem;
            color: rgba(255, 255, 255, .4);
        }
        .footer-bottom p {
            margin-bottom: 0;
        }
        @media (max-width: 991.98px) {
            :root {
                --section-space: 64px;
            }
            .navbar-collapse {
                background: rgba(20, 10, 35, .98);
                padding: 14px 16px;
                border-radius: 14px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, .08);
            }
            .navbar-nav .nav-link {
                padding: 10px 16px !important;
            }
            .btn-cta {
                margin-top: 10px;
                width: 100%;
                text-align: center;
                margin-left: 0 !important;
            }
            .content-sidebar-wrap .main-col {
                padding-right: 12px;
            }
            .sidebar {
                padding-left: 0;
                margin-top: 20px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero .lead {
                font-size: 1rem;
            }
            .info-card {
                padding: 28px 22px;
            }
        }
        @media (max-width: 767.98px) {
            :root {
                --section-space: 48px;
            }
            .page-hero {
                padding: 52px 0 44px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .page-hero .lead {
                font-size: .95rem;
            }
            .info-card .info-img {
                height: 200px;
            }
            .steps-card .step-item {
                margin-bottom: 14px;
            }
            .device-card {
                margin-bottom: 14px;
            }
            .stats-section {
                padding: 48px 0;
            }
            .stat-item {
                margin-bottom: 14px;
            }
            .faq-section {
                padding: 48px 0;
            }
            .custom-accordion .accordion-button {
                font-size: .93rem;
                padding: 16px 18px;
            }
            .cta-section {
                padding: 54px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .site-footer {
                padding: 44px 0 0;
            }
            .navbar-brand {
                font-size: 1.1rem;
                max-width: 220px;
            }
        }
        @media (max-width: 575.98px) {
            .navbar-brand {
                font-size: 1rem;
                max-width: 190px;
                white-space: normal;
                line-height: 1.2;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .info-card h3 {
                font-size: 1.2rem;
            }
            .stat-num {
                font-size: 1.5rem;
            }
        }

/* roulang page: article */
:root {
  --primary: #4A1E70;
  --primary-dark: #1C1030;
  --accent: #00E5A0;
  --gold: #FFB800;
  --bg-light: #F6F4F9;
  --card-bg: #FFFFFF;
  --text-main: #221432;
  --text-muted: #6E6480;
  --text-light: #D6C9E8;
  --border: #E3DCEF;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --shadow: 0 4px 16px rgba(30,16,46,.08);
  --shadow-hover: 0 8px 30px rgba(30,16,46,.14);
  --transition: all .3s ease;
  --header-height: 72px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--card-bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; }

.container { max-width: 1200px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  background: rgba(28,16,48,.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(28,16,48,.95);
  box-shadow: 0 4px 30px rgba(0,0,0,.35);
}
.site-header .navbar {
  min-height: var(--header-height);
  padding: .5rem 0;
}
.navbar-brand {
  color: #fff !important;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: .5px;
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.navbar-brand i {
  color: var(--accent);
  font-size: 1.4rem;
}
.navbar-brand:hover { color: var(--accent) !important; }
.navbar-nav .nav-link {
  color: rgba(255,255,255,.8) !important;
  font-weight: 500;
  font-size: .95rem;
  padding: .5rem 1rem;
  border-radius: 8px;
  transition: var(--transition);
}
.navbar-nav .nav-link:hover {
  color: var(--accent) !important;
  background: rgba(255,255,255,.04);
}
.navbar-nav .nav-link.active {
  color: var(--accent) !important;
  font-weight: 600;
  background: rgba(0,229,160,.08);
}
.navbar-toggler {
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 8px;
  padding: .35rem .55rem;
}
.navbar-toggler:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0,229,160,.3);
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: var(--accent);
  color: var(--primary-dark) !important;
  font-weight: 700;
  font-size: .95rem;
  padding: .6rem 1.7rem;
  border: 2px solid var(--accent);
  border-radius: 50px;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-cta:hover {
  background: transparent;
  color: var(--accent) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,229,160,.3);
}
.btn-cta:active {
  transform: translateY(0);
  box-shadow: none;
}

/* ---------- Breadcrumb + Article Hero ---------- */
.article-hero {
  padding: 140px 0 56px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  position: relative;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: .14;
}
.article-hero::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(0,229,160,.18) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.article-hero .container {
  position: relative;
  z-index: 1;
}
.article-hero .breadcrumb {
  --bs-breadcrumb-divider-color: rgba(255,255,255,.4);
  margin-bottom: 1.25rem;
  font-size: .875rem;
}
.article-hero .breadcrumb-item a {
  color: rgba(255,255,255,.7);
  text-decoration: none;
  transition: var(--transition);
}
.article-hero .breadcrumb-item a:hover {
  color: var(--accent);
}
.article-hero .breadcrumb-item.active {
  color: rgba(255,255,255,.5);
}
.article-hero h1 {
  color: #F8F4FF;
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.3;
  max-width: 900px;
  margin-bottom: .75rem;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  color: rgba(255,255,255,.75);
  font-size: .875rem;
}
.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}
.article-meta .meta-item i {
  color: var(--accent);
}
.badge-cat {
  display: inline-block;
  background: rgba(255,184,0,.16);
  color: var(--gold);
  font-size: .78rem;
  font-weight: 600;
  padding: .25rem .8rem;
  border-radius: 50px;
  letter-spacing: .3px;
}
.article-summary {
  color: var(--text-light);
  font-size: 1.05rem;
  margin-top: 1.25rem;
  max-width: 800px;
  line-height: 1.7;
}

/* ---------- Article Content ---------- */
.article-content {
  padding: 64px 0 48px;
  background: var(--card-bg);
}
.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-main);
}
.article-body p {
  margin-bottom: 1.25em;
}
.article-body h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 2em;
  margin-bottom: .85em;
  line-height: 1.35;
}
.article-body h3 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 1.8em;
  margin-bottom: .7em;
  line-height: 1.4;
}
.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 1.5em 0;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg-light);
  padding: 1.1rem 1.5rem;
  border-radius: 0 10px 10px 0;
  margin: 1.5em 0;
  color: var(--text-muted);
  font-style: normal;
}
.article-body blockquote p:last-child {
  margin-bottom: 0;
}
.article-body code {
  background: var(--bg-light);
  border-radius: 6px;
  padding: .2em .45em;
  font-size: .9em;
  color: var(--primary);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
.article-body pre {
  background: var(--bg-light);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1.5em 0;
  border: 1px solid var(--border);
}
.article-body pre code {
  background: transparent;
  padding: 0;
  color: var(--text-main);
}
.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover {
  color: var(--accent);
}
.article-body ul, .article-body ol {
  padding-left: 1.4rem;
  margin-bottom: 1.25em;
}
.article-body li {
  margin-bottom: .4em;
}

/* ---------- Article Share / Actions ---------- */
.article-share {
  max-width: 760px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.article-share .share-label {
  color: var(--text-muted);
  font-size: .875rem;
  font-weight: 600;
}
.article-share .share-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-light);
  color: var(--primary);
  font-size: .95rem;
  transition: var(--transition);
}
.article-share .share-link:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.article-share .actions {
  margin-left: auto;
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
}
.btn-outline-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
  border-radius: 50px;
  padding: .55rem 1.4rem;
  font-weight: 600;
  font-size: .9rem;
  transition: var(--transition);
  text-decoration: none;
  cursor: pointer;
}
.btn-outline-brand:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-outline-brand:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-outline-brand i {
  font-size: .85rem;
}

/* ---------- Related Section ---------- */
.related-section {
  padding: 80px 0;
  background: var(--bg-light);
}
.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: .5rem;
  line-height: 1.3;
  text-align: center;
}
.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: .95rem;
  margin-bottom: 2.5rem;
}
.related-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.related-card .card-img-wrap {
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--bg-light);
}
.related-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.related-card:hover .card-img-wrap img {
  transform: scale(1.04);
}
.related-card .card-body {
  padding: 1.25rem 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-card .badge-cat {
  align-self: flex-start;
  margin-bottom: .6rem;
}
.related-card .card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: .5rem;
  line-height: 1.4;
}
.related-card .card-title a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
.related-card .card-title a:hover {
  color: var(--primary);
}
.related-card .card-desc {
  color: var(--text-muted);
  font-size: .875rem;
  line-height: 1.65;
  margin-bottom: .8rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card .card-meta {
  color: var(--text-muted);
  font-size: .82rem;
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: .35rem;
}
.related-card .card-meta i {
  color: var(--accent);
}

/* ---------- CTA Section ---------- */
.article-cta {
  padding: 64px 0;
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}
.article-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  opacity: .1;
}
.article-cta .container {
  position: relative;
  z-index: 1;
}
.cta-box {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta-box h3 {
  color: #F8F4FF;
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: .75rem;
}
.cta-box p {
  color: var(--text-light);
  font-size: 1rem;
  margin-bottom: 1.75rem;
}

/* ---------- Not Found ---------- */
.not-found-section {
  padding: 160px 0;
  background: var(--bg-light);
  min-height: 70vh;
  display: flex;
  align-items: center;
}
.not-found-box {
  text-align: center;
  max-width: 520px;
  margin: 0 auto;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  box-shadow: var(--shadow);
}
.not-found-box i {
  font-size: 3.5rem;
  color: var(--gold);
  margin-bottom: 1rem;
}
.not-found-box h2 {
  color: var(--primary);
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: .5rem;
}
.not-found-box p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.7);
  padding: 64px 0 0;
  font-size: .9rem;
}
.site-footer .footer-logo {
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .75rem;
}
.site-footer .footer-logo i {
  color: var(--accent);
}
.site-footer .footer-brand p {
  color: rgba(255,255,255,.55);
  line-height: 1.65;
  max-width: 260px;
}
.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.1rem;
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer ul li {
  margin-bottom: .55rem;
}
.site-footer ul a {
  color: rgba(255,255,255,.6);
  text-decoration: none;
  transition: var(--transition);
}
.site-footer ul a:hover {
  color: var(--accent);
}
.footer-bottom {
  margin-top: 48px;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  text-align: center;
  color: rgba(255,255,255,.4);
  font-size: .82rem;
}
.footer-bottom p {
  margin: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(28,16,48,.97);
    border-radius: 14px;
    padding: 1rem;
    margin-top: .75rem;
    border: 1px solid rgba(255,255,255,.06);
  }
  .navbar-nav .nav-link {
    padding: .6rem .75rem;
  }
  .btn-cta {
    margin-top: .75rem;
    width: 100%;
  }
  .article-hero {
    padding: 120px 0 44px;
  }
  .article-hero h1 {
    font-size: 1.875rem;
  }
  .related-section, .article-cta {
    padding: 56px 0;
  }
  .site-footer {
    padding-top: 48px;
  }
}

@media (max-width: 767.98px) {
  .article-hero {
    padding: 104px 0 36px;
  }
  .article-hero h1 {
    font-size: 1.625rem;
  }
  .article-summary {
    font-size: .95rem;
  }
  .article-content {
    padding: 40px 0 32px;
  }
  .article-body {
    font-size: 1rem;
  }
  .article-share {
    margin-top: 28px;
    padding-top: 18px;
  }
  .article-share .actions {
    margin-left: 0;
    width: 100%;
  }
  .article-share .actions .btn {
    flex: 1;
  }
  .related-section {
    padding: 48px 0;
  }
  .section-title {
    font-size: 1.5rem;
  }
  .cta-box h3 {
    font-size: 1.5rem;
  }
  .site-footer .footer-brand p {
    max-width: 100%;
  }
  .not-found-section {
    padding: 120px 24px;
  }
  .not-found-box {
    padding: 2.5rem 1.5rem;
  }
}

@media (max-width: 575.98px) {
  .navbar-brand {
    font-size: 1.05rem;
  }
  .article-hero .breadcrumb {
    font-size: .78rem;
  }
  .article-meta {
    gap: .65rem;
  }
  .btn-cta {
    font-size: .9rem;
    padding: .55rem 1.2rem;
  }
  .cta-box h3 {
    font-size: 1.3rem;
  }
}

/* roulang page: category2 */
:root {
            --color-primary: #4A1E70;
            --color-primary-dark: #1C1030;
            --color-secondary: #00E5A0;
            --color-gold: #FFB800;
            --color-bg-light: #F6F4F9;
            --color-card: #FFFFFF;
            --color-text: #221432;
            --color-text-muted: #6E6480;
            --color-border: #E3DCEF;
            --radius-card: 14px;
            --radius-btn: 50px;
            --radius-input: 10px;
            --shadow-card: 0 4px 16px rgba(30,16,46,.08);
            --shadow-card-hover: 0 8px 30px rgba(30,16,46,.14);
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --space-desktop: 90px;
            --space-mobile: 56px;
        }

        * {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-family);
            color: var(--color-text);
            background: var(--color-card);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: var(--color-text);
            transition: all .25s ease;
        }
        a:hover {
            color: var(--color-secondary);
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding: 0 20px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(28, 16, 48, .9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            transition: background .3s ease, box-shadow .3s ease;
        }
        .site-header.scrolled {
            background: rgba(28, 16, 48, .98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, .35);
        }
        .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: #F8F4FF !important;
            letter-spacing: .3px;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.2;
        }
        .navbar-brand i {
            color: var(--color-secondary);
            font-size: 1.05rem;
        }
        .navbar-nav .nav-link {
            color: #D6C9E8 !important;
            font-weight: 500;
            font-size: .95rem;
            padding: 8px 16px !important;
            border-radius: 50px;
            transition: all .25s ease;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: #F8F4FF !important;
            background: rgba(0, 229, 160, .08);
        }
        .navbar-nav .nav-link.active {
            color: var(--color-secondary) !important;
            font-weight: 700;
        }
        .btn-cta {
            background: var(--color-secondary);
            color: #1C1030 !important;
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 50px;
            border: none;
            font-size: .95rem;
            transition: all .25s ease;
            box-shadow: 0 4px 14px rgba(0, 229, 160, .25);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 160, .35);
            filter: brightness(1.08);
            color: #1C1030 !important;
        }
        .btn-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 229, 160, .2);
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, .2);
            background: transparent;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23D6C9E8' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            padding: 170px 0 100px;
            background: linear-gradient(135deg, #1C1030 0%, #2A1550 55%, #1C1030 100%);
            overflow: hidden;
            text-align: center;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px);
            background-size: 28px 28px;
            z-index: 0;
        }
        .category-hero::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: .12;
            z-index: 1;
        }
        .category-hero .hero-inner {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 229, 160, .12);
            border: 1px solid rgba(0, 229, 160, .3);
            color: var(--color-secondary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .4px;
            margin-bottom: 20px;
        }
        .category-hero h1 {
            color: #F8F4FF;
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .category-hero .hero-sub {
            color: #D6C9E8;
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }
        .category-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 36px;
            flex-wrap: wrap;
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-gold);
            line-height: 1.2;
        }
        .hero-stats .stat-label {
            color: #D6C9E8;
            font-size: .85rem;
            margin-top: 4px;
        }

        /* ===== 预览卡 ===== */
        .preview-cards {
            background: var(--color-bg-light);
            padding: var(--space-desktop) 0;
        }
        .section-title-center {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title-center .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(74, 30, 112, .08);
            color: var(--color-primary);
            font-size: .8rem;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 50px;
            margin-bottom: 10px;
        }
        .section-title-center h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .section-title-center p {
            color: var(--color-text-muted);
            max-width: 560px;
            margin: 0 auto;
            font-size: .95rem;
        }
        .preview-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            padding: 30px 24px;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease;
            border: 1px solid rgba(227, 220, 239, .4);
            text-align: center;
        }
        .preview-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }
        .preview-card .icon-wrap {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(74, 30, 112, .1), rgba(0, 229, 160, .08));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.35rem;
            color: var(--color-primary);
        }
        .preview-card h3 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .preview-card p {
            color: var(--color-text-muted);
            font-size: .9rem;
            margin: 0;
            line-height: 1.7;
        }

        /* ===== 主内容 + 侧栏 ===== */
        .category-main {
            background: #FFFFFF;
            padding: var(--space-desktop) 0;
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 44px;
        }
        .main-content {
            min-width: 0;
        }
        .content-block {
            margin-bottom: 60px;
        }
        .content-block:last-child {
            margin-bottom: 0;
        }
        .content-block .block-top {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
            margin-bottom: 24px;
        }
        .block-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .block-img img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .block-img:hover img {
            transform: scale(1.03);
        }
        .block-text h2 {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .block-text p {
            color: var(--color-text-muted);
            font-size: .95rem;
            margin-bottom: 10px;
            line-height: 1.8;
        }
        .btn-link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-primary);
            font-weight: 700;
            font-size: .9rem;
            border-bottom: 2px solid var(--color-secondary);
            padding-bottom: 2px;
            transition: all .25s ease;
        }
        .btn-link-more:hover {
            color: var(--color-secondary);
            border-bottom-color: var(--color-primary);
            gap: 10px;
        }
        .step-list {
            margin-top: 8px;
        }
        .step-list li {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px dashed var(--color-border);
        }
        .step-list li:last-child {
            border-bottom: none;
        }
        .step-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #F8F4FF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: .95rem;
        }
        .step-content h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .step-content p {
            color: var(--color-text-muted);
            font-size: .875rem;
            margin: 0;
            line-height: 1.65;
        }
        .tips-card {
            background: var(--color-bg-light);
            border-radius: var(--radius-card);
            padding: 24px;
            border-left: 4px solid var(--color-secondary);
        }
        .tips-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-primary);
        }
        .tips-card li {
            padding: 6px 0;
            font-size: .9rem;
            color: var(--color-text);
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }
        .tips-card li i {
            color: var(--color-secondary);
            margin-top: 4px;
            font-size: .8rem;
        }

        /* 侧栏 */
        .sidebar {
            position: sticky;
            top: 110px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--color-bg-light);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 24px;
            border: 1px solid rgba(227, 220, 239, .5);
        }
        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--color-primary);
        }
        .side-nav-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 8px;
            margin-bottom: 6px;
            font-weight: 500;
            font-size: .9rem;
            transition: all .25s ease;
            color: var(--color-text);
        }
        .side-nav-item:hover,
        .side-nav-item.active {
            background: var(--color-card);
            color: var(--color-primary);
            box-shadow: var(--shadow-card);
        }
        .side-nav-item.active {
            font-weight: 700;
        }
        .side-nav-item i {
            color: var(--color-secondary);
            width: 18px;
            text-align: center;
            font-size: .85rem;
        }
        .side-link {
            font-size: .875rem;
            color: var(--color-text-muted);
            padding: 6px 0;
            display: block;
            border-bottom: 1px solid rgba(227, 220, 239, .5);
            transition: all .25s ease;
        }
        .side-link:last-child {
            border-bottom: none;
        }
        .side-link:hover {
            color: var(--color-primary);
            padding-left: 6px;
        }
        .contact-card {
            background: linear-gradient(135deg, var(--color-primary) 0%, #2A1550 100%);
            color: #F8F4FF;
            border: none;
        }
        .contact-card h4 {
            color: #F8F4FF;
        }
        .contact-card p {
            font-size: .9rem;
            color: #D6C9E8;
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .contact-card .btn-light-cta {
            display: inline-block;
            background: var(--color-secondary);
            color: #1C1030;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 50px;
            font-size: .875rem;
            width: 100%;
            text-align: center;
            transition: all .25s ease;
        }
        .contact-card .btn-light-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 229, 160, .3);
            color: #1C1030;
        }

        /* ===== 数据区 ===== */
        .data-section {
            background: var(--color-bg-light);
            padding: var(--space-desktop) 0;
        }
        .data-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            text-align: center;
            padding: 36px 20px;
            box-shadow: var(--shadow-card);
            height: 100%;
            transition: transform .3s ease, box-shadow .3s ease;
        }
        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .data-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .data-card .label {
            color: var(--color-text-muted);
            font-size: .875rem;
            margin-top: 8px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #FFFFFF;
            padding: var(--space-desktop) 0;
        }
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--color-border) !important;
            border-radius: var(--radius-card) !important;
            margin-bottom: 16px;
            box-shadow: 0 2px 8px rgba(30, 16, 46, .05);
            overflow: hidden;
        }
        .accordion-button {
            font-weight: 700;
            color: var(--color-text);
            padding: 20px 24px;
            font-size: 1rem;
            background: #FFFFFF;
            box-shadow: none !important;
            border: none !important;
        }
        .accordion-button:focus {
            box-shadow: none !important;
        }
        .accordion-button:not(.collapsed) {
            background: var(--color-bg-light);
            color: var(--color-primary);
        }
        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%234A1E70'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .accordion-body {
            color: var(--color-text-muted);
            font-size: .95rem;
            padding: 6px 24px 20px;
            line-height: 1.8;
            border-top: none !important;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, #1C1030 0%, #3A1E60 100%);
            padding: 80px 0;
            text-align: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(0, 229, 160, .1) 1px, transparent 1px);
            background-size: 24px 24px;
            z-index: 0;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #F8F4FF;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: #D6C9E8;
            font-size: 1.05rem;
            max-width: 620px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .btn-cta-lg {
            background: var(--color-secondary);
            color: #1C1030;
            font-weight: 800;
            padding: 16px 48px;
            border-radius: 50px;
            font-size: 1.05rem;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all .3s ease;
            box-shadow: 0 8px 30px rgba(0, 229, 160, .3);
        }
        .btn-cta-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(0, 229, 160, .4);
            filter: brightness(1.08);
            color: #1C1030 !important;
        }
        .btn-cta-lg:active {
            transform: translateY(-1px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-primary-dark);
            color: #D6C9E8;
            padding: 60px 0 0;
            font-size: .9rem;
        }
        .footer-brand .footer-logo {
            font-size: 1.2rem;
            font-weight: 800;
            color: #F8F4FF;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand p {
            color: #A896C0;
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 300px;
        }
        .site-footer h4 {
            color: #F8F4FF;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul a {
            color: #A896C0;
            transition: color .2s ease;
        }
        .site-footer ul a:hover {
            color: var(--color-secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            margin-top: 40px;
            text-align: center;
            color: #A896C0;
            font-size: .85rem;
        }
        .footer-bottom p {
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: rgba(28, 16, 48, .98);
                padding: 16px;
                border-radius: 14px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, .1);
            }
            .navbar-nav {
                gap: 6px;
            }
            .navbar-nav .nav-link {
                padding: 10px 16px !important;
            }
            .btn-cta {
                margin-left: 0 !important;
                margin-top: 10px;
                width: 100%;
                justify-content: center;
            }
            .category-hero {
                padding: 140px 0 70px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .content-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .section-title-center h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 767.98px) {
            .category-hero {
                padding: 120px 0 60px;
            }
            .category-hero h1 {
                font-size: 1.75rem;
            }
            .category-hero .hero-sub {
                font-size: 1rem;
            }
            .category-hero .hero-stats {
                gap: 24px;
            }
            .category-hero .stat-num {
                font-size: 1.5rem;
            }
            .content-block .block-top {
                grid-template-columns: 1fr;
            }
            .preview-card {
                padding: 22px 18px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .btn-cta-lg {
                padding: 14px 30px;
                font-size: .95rem;
                width: 100%;
                justify-content: center;
            }
            .preview-cards,
            .category-main,
            .data-section,
            .faq-section {
                padding: var(--space-mobile) 0;
            }
            .cta-section {
                padding: 56px 0;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding: 0 16px;
            }
            .category-hero .hero-stats {
                gap: 16px;
                flex-direction: column;
            }
            .data-card .num {
                font-size: 1.6rem;
            }
            .section-title-center h2 {
                font-size: 1.35rem;
            }
        }