/* roulang page: index */
:root {
    --bg-main: #0A0E14;
    --bg-alt: #131A24;
    --bg-card: #141B26;
    --primary: #00E68C;
    --primary-hover: #00FFA3;
    --accent: #7C4DFF;
    --signal: #FF6B35;
    --text: #E8EDF2;
    --text-2: #94A1B0;
    --text-3: #5E6B7A;
    --border: rgba(255,255,255,0.08);
    --border-hover: rgba(0,230,140,0.4);
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-badge: 40px;
    --shadow-card: 0 2px 12px rgba(0,0,0,0.4);
    --shadow-hover: 0 8px 24px rgba(0,230,140,0.12);
    --transition: 0.3s ease;
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg-main);
    color: var(--text);
    line-height: 1.8;
    font-size: 15px;
    overflow-x: hidden;
}
a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}
img {
    max-width: 100%;
    display: block;
}
button,
input {
    font-family: inherit;
}
.container {
    max-width: 1320px;
}
.bg-alt {
    background: var(--bg-alt);
}
.section {
    padding: 84px 0;
}
.section-alt {
    background: var(--bg-alt);
}
.section-head {
    margin-bottom: 40px;
}
.section-title {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text);
    margin-bottom: 8px;
    position: relative;
    display: inline-block;
}
.section-title::after {
    content: "";
    display: block;
    width: 48px;
    height: 3px;
    background: var(--primary);
    margin-top: 10px;
    border-radius: 4px;
}
.section-sub {
    color: var(--text-2);
    font-size: 16px;
    margin-top: 12px;
    line-height: 1.7;
    max-width: 640px;
}
.btn {
    border-radius: var(--radius-btn);
    font-weight: 600;
    transition: var(--transition);
    letter-spacing: 0.3px;
}
.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #0A0E14;
}
.btn-primary:hover,
.btn-primary:focus {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #0A0E14;
    box-shadow: 0 0 20px rgba(0, 230, 140, 0.4);
    transform: translateY(-2px);
}
.btn-outline-light {
    border-color: rgba(255,255,255,0.35);
    color: var(--text);
    background: transparent;
}
.btn-outline-light:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 230, 140, 0.06);
    transform: translateY(-2px);
}
.badge {
    font-weight: 600;
    border-radius: var(--radius-badge);
    padding: 6px 14px;
    font-size: 13px;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: rgba(10, 14, 20, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.site-header.scrolled {
    background: #0A0E14;
    border-color: var(--border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}
.navbar {
    padding: 14px 0;
}
.navbar-brand.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 24px;
    color: var(--text);
    letter-spacing: 1px;
}
.navbar-brand.logo:hover {
    color: var(--text);
}
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 10px;
    color: #0A0E14;
    font-size: 18px;
    font-weight: 900;
    box-shadow: 0 0 16px rgba(0, 230, 140, 0.3);
}
.logo-text {
    font-size: 24px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 1px;
}
.logo-text span {
    color: var(--primary);
}
.navbar-nav {
    gap: 4px;
}
.navbar-nav .nav-link {
    color: var(--text-2);
    font-weight: 500;
    font-size: 15px;
    padding: 10px 16px !important;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}
.navbar-nav .nav-link:hover {
    color: var(--text);
}
.navbar-nav .nav-link.active {
    color: var(--primary);
    font-weight: 600;
}
.navbar-nav .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 2px;
    background: var(--primary);
    border-radius: 4px;
}
.header-actions .btn {
    padding: 8px 22px;
    font-size: 14px;
}
.navbar-toggler {
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    padding: 6px 10px;
}
.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(255,255,255,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Hero */
.hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
    background: linear-gradient(90deg, rgba(10,14,20,0.85) 0%, rgba(10,14,20,0.6) 50%, rgba(10,14,20,0.35) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    top: 20%;
    right: -120px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(0, 230, 140, 0.18) 0%, transparent 70%);
    animation: pulseGlow 6s ease-in-out infinite;
}
@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 780px;
}
.hero-badge {
    display: inline-block;
    background: rgba(0, 230, 140, 0.12);
    border: 1px solid rgba(0, 230, 140, 0.3);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: var(--radius-badge);
    margin-bottom: 20px;
    letter-spacing: 1px;
}
.hero-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.15;
    color: var(--text);
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}
.hero-title .highlight {
    color: var(--primary);
}
.hero-text {
    font-size: 18px;
    color: var(--text-2);
    max-width: 620px;
    margin-bottom: 32px;
    line-height: 1.75;
}
.hero-btn-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
}
.hero-btn-group .btn {
    padding: 13px 32px;
    font-size: 16px;
}
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 48px;
    border-top: 1px solid var(--border);
    padding-top: 24px;
    max-width: 620px;
}
.stat-item {
    display: flex;
    flex-direction: column;
}
.stat-number {
    font-size: 28px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.2;
}
.stat-number span {
    color: var(--primary);
    font-size: 22px;
    margin-left: 2px;
}
.stat-label {
    font-size: 14px;
    color: var(--text-3);
    margin-top: 4px;
    letter-spacing: 0.5px;
}

/* Value Cards */
.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px 28px;
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.value-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--primary);
    transition: height var(--transition);
    border-radius: 0 4px 4px 0;
}
.value-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-hover);
}
.value-card:hover::before {
    height: 100%;
}
.value-icon {
    width: 54px;
    height: 54px;
    border-radius: 12px;
    background: rgba(0, 230, 140, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 18px;
    transition: var(--transition);
}
.value-card:hover .value-icon {
    background: var(--primary);
    color: #0A0E14;
    box-shadow: 0 0 20px rgba(0, 230, 140, 0.4);
}
.value-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}
.value-card p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 0;
}

/* Feature Split */
.feature-split {
    background: var(--bg-main);
}
.func-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 36px 32px;
    height: 100%;
}
.func-panel-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.func-panel-title i {
    color: var(--primary);
    font-size: 22px;
}
.func-panel-desc {
    color: var(--text-3);
    font-size: 14px;
    margin-bottom: 24px;
}
.func-grid-2x2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.func-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 20px 16px;
    transition: var(--transition);
}
.func-item:hover {
    border-color: var(--border-hover);
    background: rgba(0, 230, 140, 0.04);
}
.func-item i {
    color: var(--primary);
    font-size: 20px;
    margin-bottom: 10px;
    display: inline-block;
}
.func-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}
.func-item p {
    font-size: 13px;
    color: var(--text-3);
    margin-bottom: 0;
    line-height: 1.5;
}
.func-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.func-list-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 18px 16px;
    transition: var(--transition);
}
.func-list-item:hover {
    border-color: var(--border-hover);
    background: rgba(124, 77, 255, 0.05);
}
.func-list-item i {
    color: var(--accent);
    font-size: 18px;
    margin-top: 3px;
}
.func-list-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 2px;
}
.func-list-item p {
    font-size: 13px;
    color: var(--text-3);
    margin-bottom: 0;
}

/* Scene Cards */
.scene-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
    height: 100%;
    transition: var(--transition);
}
.scene-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-hover);
}
.scene-thumb {
    overflow: hidden;
    position: relative;
}
.scene-thumb img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.scene-card:hover .scene-thumb img {
    transform: scale(1.06);
}
.scene-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(10, 14, 20, 0.85);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: var(--radius-badge);
    border: 1px solid rgba(0, 230, 140, 0.3);
}
.scene-body {
    padding: 24px;
}
.scene-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}
.scene-body p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 0;
}

/* Case Section */
.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
}
.case-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-hover);
}
.case-card-large {
    background: linear-gradient(135deg, rgba(124, 77, 255, 0.15) 0%, rgba(10, 14, 20, 0.95) 60%), var(--bg-card);
}
.case-body {
    padding: 36px 32px;
    flex: 1;
}
.case-tag {
    display: inline-block;
    background: rgba(0, 230, 140, 0.12);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: var(--radius-badge);
    margin-bottom: 16px;
}
.case-card h3 {
    font-size: 26px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 14px;
    line-height: 1.3;
}
.case-card p {
    font-size: 15px;
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 24px;
}
.case-stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--border);
    padding-top: 20px;
    margin-top: auto;
}
.case-stat-num {
    font-size: 30px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.2;
}
.case-stat-num small {
    font-size: 16px;
    color: var(--primary);
    margin-left: 2px;
}
.case-stat-label {
    font-size: 13px;
    color: var(--text-3);
    margin-top: 4px;
}
.case-thumb {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

/* Price Section */
.price-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 36px 32px;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
}
.price-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-hover);
}
.price-card.featured {
    border: 2px solid var(--primary);
    box-shadow: 0 0 32px rgba(0, 230, 140, 0.12);
}
.price-card.featured::before {
    content: "热门";
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--signal);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 3px 16px;
    border-radius: var(--radius-badge);
    letter-spacing: 1px;
}
.price-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}
.price-amount {
    font-size: 42px;
    font-weight: 900;
    color: var(--text);
    line-height: 1.1;
    margin-bottom: 4px;
}
.price-amount small {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-3);
}
.price-period {
    font-size: 14px;
    color: var(--text-3);
    margin-bottom: 24px;
}
.price-features {
    list-style: none;
    padding: 0;
    margin-bottom: 28px;
    flex: 1;
}
.price-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--text-2);
    padding: 6px 0;
}
.price-features li i {
    color: var(--primary);
    font-size: 14px;
}

/* News Section */
.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}
.news-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-hover);
}
.news-thumb {
    overflow: hidden;
    display: block;
    position: relative;
}
.news-thumb img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.news-card:hover .news-thumb img {
    transform: scale(1.06);
}
.news-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.badge-cat {
    background: rgba(0, 230, 140, 0.14);
    color: var(--primary);
    font-size: 12px;
    padding: 4px 12px;
    border-radius: var(--radius-badge);
    align-self: flex-start;
    margin-bottom: 10px;
    font-weight: 600;
}
.news-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
}
.news-info h3 a {
    color: inherit;
    transition: color var(--transition);
}
.news-info h3 a:hover {
    color: var(--primary);
}
.news-info p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.6;
    margin-bottom: 14px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-3);
    border-top: 1px solid var(--border);
    padding-top: 12px;
}
.news-meta time i {
    margin-right: 4px;
}
.read-more {
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    transition: color var(--transition);
}
.read-more:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}
.empty-tip {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius-card);
    color: var(--text-2);
    font-size: 16px;
}

/* FAQ */
.accordion-item {
    background: var(--bg-card);
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-card) !important;
    margin-bottom: 14px;
    overflow: hidden;
}
.accordion-button {
    background: transparent;
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    padding: 20px 24px;
    box-shadow: none !important;
    border-left: 3px solid transparent;
    transition: var(--transition);
}
.accordion-button:hover {
    background: rgba(0, 230, 140, 0.04);
    border-left-color: var(--primary);
}
.accordion-button:not(.collapsed) {
    background: rgba(0, 230, 140, 0.06);
    color: var(--primary);
    border-left-color: var(--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='%2394A1B0'%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");
    transition: transform var(--transition);
}
.accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300E68C'%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 {
    padding: 0 24px 22px;
    color: var(--text-2);
    font-size: 15px;
    line-height: 1.8;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 14px;
}

/* CTA Banner */
.cta-banner {
    background: linear-gradient(120deg, rgba(124, 77, 255, 0.35) 0%, rgba(10, 14, 20, 0.95) 55%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    border-radius: 24px;
    padding: 72px 56px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-banner::after {
    content: "";
    position: absolute;
    bottom: -60px;
    right: 10%;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(0, 230, 140, 0.15) 0%, transparent 70%);
    animation: pulseGlow 8s ease-in-out infinite;
}
.cta-banner h2 {
    font-size: 38px;
    font-weight: 900;
    color: var(--text);
    margin-bottom: 14px;
    position: relative;
    z-index: 2;
}
.cta-banner p {
    font-size: 17px;
    color: var(--text-2);
    max-width: 560px;
    margin: 0 auto 30px;
    position: relative;
    z-index: 2;
}
.cta-banner .btn {
    padding: 14px 40px;
    font-size: 16px;
    position: relative;
    z-index: 2;
}

/* Footer */
.site-footer {
    background: #0A0E14;
    border-top: 1px solid var(--border);
    padding: 64px 0 0;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-brand .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
}
.footer-brand .logo-text {
    font-size: 22px;
}
.footer-desc {
    font-size: 14px;
    color: var(--text-3);
    line-height: 1.7;
    max-width: 300px;
}
.footer-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 8px;
}
.footer-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 4px;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    color: var(--text-3);
    font-size: 14px;
    transition: var(--transition);
}
.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-3);
    font-size: 14px;
    margin-bottom: 12px;
}
.footer-contact li i {
    color: var(--primary);
    width: 18px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    margin-top: 48px;
    text-align: center;
    font-size: 14px;
    color: var(--text-3);
}

/* Responsive */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: #0A0E14;
        padding: 16px;
        border-radius: 12px;
        border: 1px solid var(--border);
        margin-top: 12px;
    }
    .navbar-nav .nav-link {
        padding: 10px 12px !important;
    }
    .navbar-nav .nav-link.active::after {
        display: none;
    }
    .hero-title {
        font-size: 44px;
    }
    .section {
        padding: 64px 0;
    }
    .case-card-large {
        margin-bottom: 20px;
    }
}
@media (max-width: 767.98px) {
    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }
    .hero-title {
        font-size: 34px;
        line-height: 1.2;
    }
    .hero-text {
        font-size: 16px;
    }
    .hero-stats {
        gap: 32px;
        flex-wrap: wrap;
    }
    .stat-number {
        font-size: 24px;
    }
    .section-title {
        font-size: 26px;
    }
    .value-card {
        margin-bottom: 16px;
    }
    .func-grid-2x2 {
        grid-template-columns: 1fr;
    }
    .scene-card {
        margin-bottom: 20px;
    }
    .price-card {
        margin-bottom: 20px;
    }
    .cta-banner {
        padding: 48px 24px;
    }
    .cta-banner h2 {
        font-size: 28px;
    }
    .footer-bottom {
        font-size: 13px;
        padding: 16px 12px;
    }
}
@media (max-width: 575.98px) {
    .hero-btn-group {
        flex-direction: column;
    }
    .hero-btn-group .btn {
        width: 100%;
        text-align: center;
    }
    .case-stats {
        flex-direction: column;
        gap: 16px;
    }
    .news-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .cta-banner {
        border-radius: 16px;
    }
    .footer-contact {
        margin-bottom: 24px;
    }
}

/* roulang page: category1 */
:root {
            --bg-main: #0A0E14;
            --bg-alt: #131A24;
            --bg-card: #141B26;
            --primary: #00E68C;
            --primary-light: #00FFA3;
            --accent: #7C4DFF;
            --signal: #FF6B35;
            --text: #E8EDF2;
            --text-2: #94A1B0;
            --text-3: #5E6B7A;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 230, 140, 0.4);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 24px rgba(0, 230, 140, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 40px;
            --transition: 0.3s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1320px;
        }

        /* ===== Buttons ===== */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border: 2px solid transparent;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #07120C;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: #07120C;
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(0, 230, 140, 0.4);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.25);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 0 16px rgba(0, 230, 140, 0.18);
        }

        /* ===== Site Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }
        .site-header.scrolled {
            background: rgba(10, 14, 20, 0.97);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }
        .site-header .navbar {
            padding: 16px 0;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 15px;
            color: #07120C;
            letter-spacing: 1px;
            flex-shrink: 0;
        }
        .logo-text {
            font-weight: 900;
            font-size: 22px;
            line-height: 1.2;
            color: var(--text);
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary);
        }
        .navbar-nav {
            gap: 8px;
        }
        .navbar-nav .nav-link {
            color: var(--text-2);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: 30px;
            position: relative;
            transition: all var(--transition);
        }
        .navbar-nav .nav-link:hover {
            color: var(--text);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-actions .btn-primary {
            padding: 10px 24px;
            font-size: 14px;
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
            background: transparent !important;
        }
        .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='%2394A1B0' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E") !important;
        }

        /* ===== Page Hero ===== */
        .category-hero {
            position: relative;
            padding: 100px 0 70px;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.6) 0%, rgba(10, 14, 20, 0.8) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -80px;
            right: -100px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(0, 230, 140, 0.12) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 230, 140, 0.12);
            border: 1px solid rgba(0, 230, 140, 0.3);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: var(--radius-badge);
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        .category-hero h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .category-hero h1 .highlight {
            color: var(--primary);
        }
        .category-hero .lead-text {
            color: var(--text-2);
            font-size: 16px;
            line-height: 1.8;
            max-width: 660px;
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }

        /* Category Switch */
        .category-switch-wrap {
            padding: 4px 0 2px;
        }
        .category-switch {
            display: inline-flex;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-badge);
            padding: 5px;
            gap: 4px;
            flex-wrap: wrap;
        }
        .category-switch a {
            display: inline-block;
            padding: 8px 24px;
            border-radius: var(--radius-badge);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-2);
            transition: all var(--transition);
        }
        .category-switch a:hover {
            color: var(--primary);
        }
        .category-switch a.active {
            background: var(--primary);
            color: #07120C;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(0, 230, 140, 0.3);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title-wrap {
            margin-bottom: 48px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-title-wrap.center {
            justify-content: center;
            text-align: center;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(0, 230, 140, 0.08);
            border: 1px solid rgba(0, 230, 140, 0.2);
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            color: var(--text-3);
            font-size: 15px;
            max-width: 600px;
        }

        /* ===== Cards ===== */
        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
        }
        .game-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .game-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-alt);
        }
        .game-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .game-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .game-card .card-body {
            padding: 24px;
        }
        .game-card .card-title {
            font-size: 19px;
            font-weight: 800;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .game-card .card-title .hot {
            color: var(--signal);
            font-size: 12px;
            font-weight: 700;
            background: rgba(255, 107, 53, 0.1);
            border: 1px solid rgba(255, 107, 53, 0.3);
            padding: 2px 10px;
            border-radius: var(--radius-badge);
        }
        .game-card .card-text {
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .card-link {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .card-link:hover {
            gap: 10px;
            color: var(--primary-light);
        }

        /* ===== Feature Grid ===== */
        .feature-box {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            height: 100%;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--primary);
            transition: height var(--transition);
        }
        .feature-box:hover {
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .feature-box:hover::before {
            height: 100%;
        }
        .feature-icon {
            width: 54px;
            height: 54px;
            border-radius: 12px;
            background: rgba(0, 230, 140, 0.08);
            border: 1px solid rgba(0, 230, 140, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
            transition: all var(--transition);
        }
        .feature-box:hover .feature-icon {
            background: var(--primary);
            color: #07120C;
            box-shadow: 0 0 20px rgba(0, 230, 140, 0.3);
        }
        .feature-box h3 {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .feature-box p {
            color: var(--text-2);
            font-size: 14px;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, #0F1520 0%, #131A24 50%, #141B26 100%);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .stat-item {
            text-align: center;
            padding: 30px 16px;
        }
        .stat-number {
            font-size: 44px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .stat-label {
            color: var(--text-2);
            font-size: 14px;
            letter-spacing: 1px;
        }

        /* ===== Steps ===== */
        .step-item {
            position: relative;
            padding: 28px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            height: 100%;
            transition: all var(--transition);
            counter-increment: step-counter;
        }
        .step-item::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 24px;
            right: 24px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .step-item:hover {
            border-color: var(--border-hover);
            transform: translateY(-3px);
        }
        .step-item:hover::before {
            opacity: 1;
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(124, 77, 255, 0.12);
            border: 1px solid rgba(124, 77, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 17px;
            color: var(--accent);
            margin-bottom: 18px;
        }
        .step-item h3 {
            font-size: 17px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--text-2);
            font-size: 14px;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-item .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }
        .faq-item:hover .faq-question {
            border-left-color: var(--primary);
        }
        .faq-item .faq-question .icon {
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.open .faq-answer {
            padding: 0 24px 20px;
            max-height: 400px;
        }
        .faq-item .faq-answer p {
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(124, 77, 255, 0.08) 0%, transparent 50%), url('/assets/images/backpic/back-3.png') center/cover no-repeat, var(--bg-alt);
            position: relative;
            padding: 90px 0;
            text-align: center;
            border-top: 1px solid var(--border);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.85) 0%, rgba(10, 14, 20, 0.6) 100%);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
        }
        .cta-inner h2 {
            font-size: 36px;
            font-weight: 900;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: var(--text-2);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 16px;
        }
        .cta-inner .btn-primary {
            font-size: 17px;
            padding: 14px 40px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070B10;
            border-top: 1px solid var(--border);
            padding: 70px 0 0;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-desc {
            color: var(--text-3);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-3);
            font-size: 14px;
            transition: all var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-contact li {
            color: var(--text-3);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact i {
            color: var(--primary);
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 22px 0;
            margin-top: 50px;
            text-align: center;
            color: var(--text-3);
            font-size: 13px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 40px;
            }
            .section-title {
                font-size: 28px;
            }
            .stat-number {
                font-size: 36px;
            }
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 70px 0 50px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .navbar-collapse {
                background: rgba(10, 14, 20, 0.98);
                border-radius: 12px;
                padding: 16px 20px;
                margin-top: 12px;
                border: 1px solid var(--border);
            }
            .navbar-nav {
                gap: 0;
            }
            .navbar-nav .nav-link {
                padding: 12px 12px;
            }
            .navbar-nav .nav-link.active::after {
                left: 12px;
                right: auto;
                width: 30px;
            }
            .header-actions {
                margin-top: 12px;
            }
            .stat-number {
                font-size: 30px;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 28px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .section-title-wrap {
                flex-direction: column;
                align-items: flex-start;
            }
            .game-card .card-body {
                padding: 18px;
            }
        }

/* roulang page: article */
/* ========== 设计变量 ========== */
    :root {
        --bg-main: #0A0E14;
        --bg-alt: #131A24;
        --bg-card: #141B26;
        --primary: #00E68C;
        --primary-light: #00FFA3;
        --accent: #7C4DFF;
        --signal: #FF6B35;
        --text: #E8EDF2;
        --text-2: #94A1B0;
        --text-3: #5E6B7A;
        --border: rgba(255,255,255,0.08);
        --border-hover: rgba(0,230,140,0.4);
        --radius-card: 12px;
        --radius-btn: 8px;
        --radius-badge: 40px;
        --shadow-card: 0 2px 12px rgba(0,0,0,0.4);
        --shadow-hover: 0 8px 24px rgba(0,230,140,0.12);
        --transition: 0.3s ease;
    }

    /* ========== 基础 Reset ========== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        background: var(--bg-main);
        color: var(--text);
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        line-height: 1.7;
        overflow-x: hidden;
    }
    img {
        max-width: 100%;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--primary-light);
    }
    ul,
    ol {
        margin: 0;
        padding: 0;
        list-style: none;
    }
    .container {
        max-width: 1320px;
    }
    @media (min-width: 992px) {
        .container {
            max-width: 1320px;
        }
    }

    /* ========== 按钮 ========== */
    .btn {
        border-radius: var(--radius-btn);
        padding: 10px 24px;
        font-weight: 600;
        transition: var(--transition);
    }
    .btn-primary {
        background: var(--primary);
        border: 1px solid var(--primary);
        color: #0A0E14;
    }
    .btn-primary:hover,
    .btn-primary:focus {
        background: var(--primary-light);
        border-color: var(--primary-light);
        color: #0A0E14;
        box-shadow: 0 0 20px rgba(0, 230, 140, 0.4);
        transform: translateY(-2px);
    }
    .btn-outline-light {
        border: 1px solid rgba(255, 255, 255, 0.3);
        color: #fff;
        background: transparent;
    }
    .btn-outline-light:hover {
        border-color: var(--primary);
        color: var(--primary);
        transform: translateY(-2px);
    }
    .btn:focus-visible,
    a:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }

    /* ========== 顶部导航 ========== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(10, 14, 20, 0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        transition: background 0.3s ease;
    }
    .navbar {
        padding: 14px 0;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        border-radius: 9px;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        color: #0A0E14;
        font-weight: 900;
        font-size: 15px;
        box-shadow: 0 0 14px rgba(0, 230, 140, 0.3);
    }
    .logo-text {
        font-size: 22px;
        font-weight: 800;
        color: #fff;
        letter-spacing: 0.5px;
    }
    .logo-text span {
        color: var(--primary);
    }
    .navbar .nav-link {
        color: var(--text-2);
        font-size: 15px;
        font-weight: 500;
        padding: 8px 16px !important;
        margin: 0 2px;
        border-radius: 6px;
        position: relative;
        transition: var(--transition);
    }
    .navbar .nav-link:hover {
        color: #fff;
    }
    .navbar .nav-link.active {
        color: var(--primary);
    }
    .navbar .nav-link.active::after {
        content: "";
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        bottom: 4px;
        width: 20px;
        height: 2px;
        background: var(--primary);
        border-radius: 4px;
        box-shadow: 0 0 8px rgba(0, 230, 140, 0.5);
    }
    .navbar-toggler {
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .navbar-toggler:focus {
        box-shadow: 0 0 0 2px rgba(0, 230, 140, 0.3);
    }
    .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%28255,255,255,0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    .header-actions {
        margin-left: 16px;
    }

    /* ========== 文章 Hero ========== */
    .article-hero {
        position: relative;
        padding: 72px 0 64px;
        background: linear-gradient(180deg, rgba(10, 14, 20, 0.55) 0%, rgba(10, 14, 20, 0.92) 100%),
            url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        border-bottom: 1px solid var(--border);
    }
    .article-breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 14px;
        color: var(--text-3);
        margin-bottom: 28px;
    }
    .article-breadcrumb a {
        color: var(--text-3);
    }
    .article-breadcrumb a:hover {
        color: var(--primary);
    }
    .article-breadcrumb .sep {
        color: var(--text-3);
        opacity: 0.6;
    }
    .article-breadcrumb .current {
        color: var(--primary);
        font-weight: 500;
        max-width: 320px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .article-title {
        font-size: 42px;
        font-weight: 800;
        line-height: 1.25;
        color: #fff;
        margin: 0 0 20px;
        letter-spacing: 0.5px;
    }
    .article-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 12px 24px;
        font-size: 14px;
        color: var(--text-2);
    }
    .badge-article {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(0, 230, 140, 0.12);
        color: var(--primary);
        padding: 4px 14px;
        border-radius: var(--radius-badge);
        font-weight: 600;
        font-size: 13px;
    }
    .hot-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--signal);
    }
    .article-meta i {
        margin-right: 4px;
        opacity: 0.8;
    }

    /* ========== 正文区 ========== */
    .article-main {
        padding: 48px 0 72px;
    }
    .article-layout {
        max-width: 760px;
        margin: 0 auto;
    }
    .article-excerpt-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-left: 3px solid var(--primary);
        border-radius: var(--radius-card);
        padding: 20px 24px;
        margin-bottom: 36px;
        color: var(--text-2);
        line-height: 1.8;
        font-size: 15px;
    }
    .article-content {
        font-size: 16px;
        line-height: 1.9;
        color: #c7d0da;
        word-break: break-word;
    }
    .article-content p {
        margin-bottom: 1.4em;
    }
    .article-content h2 {
        font-size: 26px;
        font-weight: 700;
        color: #fff;
        margin-top: 44px;
        margin-bottom: 20px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--primary);
    }
    .article-content h3 {
        font-size: 20px;
        font-weight: 700;
        color: #fff;
        margin-top: 28px;
        margin-bottom: 14px;
    }
    .article-content h4 {
        font-size: 18px;
        font-weight: 600;
        color: #fff;
        margin-top: 20px;
    }
    .article-content a {
        color: var(--primary);
        text-decoration: underline;
        text-underline-offset: 3px;
    }
    .article-content img {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
        border: 1px solid var(--border);
    }
    .article-content blockquote {
        border-left: 4px solid var(--primary);
        background: var(--bg-card);
        padding: 18px 22px;
        border-radius: 0 10px 10px 0;
        margin: 28px 0;
        color: var(--text-2);
    }
    .article-content blockquote p:last-child {
        margin-bottom: 0;
    }
    .article-content code {
        background: rgba(0, 230, 140, 0.1);
        border-radius: 4px;
        padding: 2px 6px;
        color: var(--primary);
        font-size: 14px;
    }
    .article-content pre {
        background: #0d1117;
        padding: 18px;
        border-radius: 10px;
        overflow-x: auto;
        border: 1px solid var(--border);
    }
    .article-content pre code {
        background: none;
        padding: 0;
    }
    .article-content ul,
    .article-content ol {
        padding-left: 1.6em;
        margin-bottom: 1.4em;
    }
    .article-content li {
        margin-bottom: 0.5em;
    }
    .article-content table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 1.4em;
        font-size: 15px;
    }
    .article-content th,
    .article-content td {
        border: 1px solid var(--border);
        padding: 10px 12px;
        text-align: left;
    }
    .article-content th {
        background: var(--bg-alt);
        color: #fff;
        font-weight: 600;
    }
    .article-footer-bar {
        margin-top: 40px;
        padding-top: 32px;
        border-top: 1px solid var(--border);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
    }
    .article-footer-bar .btn {
        padding: 8px 18px;
        font-size: 14px;
    }
    .share-links {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--text-3);
        font-size: 14px;
    }
    .share-links a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
        border-radius: 50%;
        border: 1px solid var(--border);
        color: var(--text-2);
        font-size: 14px;
        transition: var(--transition);
    }
    .share-links a:hover {
        border-color: var(--primary);
        color: var(--primary);
    }

    /* ========== 相关推荐 ========== */
    .related-section {
        background: var(--bg-alt);
        padding: 64px 0;
        border-top: 1px solid var(--border);
    }
    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        margin-bottom: 36px;
    }
    .section-title {
        font-size: 28px;
        font-weight: 800;
        color: #fff;
        margin: 0;
        position: relative;
        padding-left: 16px;
    }
    .section-title::before {
        content: "";
        position: absolute;
        left: 0;
        top: 6px;
        bottom: 6px;
        width: 4px;
        border-radius: 4px;
        background: linear-gradient(180deg, var(--primary), var(--accent));
    }
    .section-more {
        font-size: 14px;
        color: var(--text-2);
        transition: var(--transition);
    }
    .section-more:hover {
        color: var(--primary);
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .related-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        overflow: hidden;
        transition: var(--transition);
        display: block;
    }
    .related-card:hover {
        transform: translateY(-4px);
        border-color: var(--border-hover);
        box-shadow: var(--shadow-hover);
    }
    .related-card-cover {
        position: relative;
        overflow: hidden;
    }
    .related-card-cover img {
        width: 100%;
        height: 150px;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .related-card:hover .related-card-cover img {
        transform: scale(1.05);
    }
    .related-card-cat {
        position: absolute;
        left: 12px;
        top: 12px;
        background: rgba(10, 14, 20, 0.85);
        color: var(--primary);
        font-size: 12px;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: 40px;
        border: 1px solid rgba(0, 230, 140, 0.3);
    }
    .related-card-body {
        padding: 16px 18px;
    }
    .related-card-title {
        font-size: 15px;
        font-weight: 600;
        color: var(--text);
        line-height: 1.5;
        margin: 0 0 8px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .related-link {
        font-size: 13px;
        color: var(--text-3);
        transition: var(--transition);
    }
    .related-card:hover .related-link {
        color: var(--primary);
    }

    /* ========== FAQ ========== */
    .faq-section {
        padding: 64px 0;
    }
    .accordion {
        max-width: 820px;
        margin: 0 auto;
    }
    .accordion-item {
        background: var(--bg-card);
        border: 1px solid var(--border) !important;
        border-radius: var(--radius-card) !important;
        margin-bottom: 14px;
        overflow: hidden;
    }
    .accordion-button {
        background: transparent;
        color: var(--text);
        font-weight: 600;
        padding: 20px 22px;
        font-size: 16px;
        border: none;
        box-shadow: none !important;
        border-left: 3px solid transparent;
        border-radius: 0 !important;
        transition: var(--transition);
    }
    .accordion-button:hover,
    .accordion-button:not(.collapsed) {
        background: rgba(0, 230, 140, 0.05);
        color: var(--primary);
        border-left-color: var(--primary);
    }
    .accordion-button::after {
        filter: invert(85%) sepia(60%) saturate(500%) hue-rotate(120deg);
    }
    .accordion-button:focus {
        box-shadow: 0 0 0 2px rgba(0, 230, 140, 0.15) !important;
    }
    .accordion-body {
        color: var(--text-2);
        font-size: 15px;
        line-height: 1.8;
        padding: 0 22px 20px;
    }

    /* ========== CTA 横幅 ========== */
    .cta-section {
        padding: 72px 0;
        background: linear-gradient(120deg, rgba(124, 77, 255, 0.25), rgba(0, 230, 140, 0.12), rgba(10, 14, 20, 0.4));
        border-top: 1px solid var(--border);
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: "J9";
        position: absolute;
        font-size: 240px;
        font-weight: 900;
        color: rgba(255, 255, 255, 0.03);
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 1;
        pointer-events: none;
    }
    .cta-inner {
        text-align: center;
        max-width: 680px;
        margin: 0 auto;
        position: relative;
        z-index: 2;
    }
    .cta-title {
        font-size: 34px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 16px;
    }
    .cta-desc {
        font-size: 16px;
        color: var(--text-2);
        margin-bottom: 28px;
    }
    .cta-actions {
        display: flex;
        gap: 14px;
        justify-content: center;
        flex-wrap: wrap;
    }

    /* ========== 空状态 ========== */
    .not-found-wrap {
        max-width: 720px;
        margin: 0 auto;
        text-align: center;
        padding: 120px 0 100px;
    }
    .not-found-icon {
        font-size: 56px;
        color: var(--text-3);
        margin-bottom: 20px;
    }
    .not-found-wrap h1 {
        font-size: 32px;
        font-weight: 800;
        color: var(--text);
        margin-bottom: 12px;
    }
    .not-found-wrap p {
        color: var(--text-2);
        margin-bottom: 28px;
    }

    /* ========== 页脚 ========== */
    .site-footer {
        background: #0b1017;
        border-top: 1px solid var(--border);
        padding: 64px 0 0;
    }
    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 16px;
    }
    .footer-brand .logo-text {
        font-size: 22px;
    }
    .footer-desc {
        color: var(--text-2);
        font-size: 14px;
        line-height: 1.7;
        max-width: 320px;
    }
    .footer-title {
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 18px;
    }
    .footer-links li {
        margin-bottom: 10px;
    }
    .footer-links a {
        color: var(--text-2);
        font-size: 14px;
        transition: var(--transition);
    }
    .footer-links a:hover {
        color: var(--primary);
        padding-left: 4px;
    }
    .footer-contact li {
        color: var(--text-2);
        font-size: 14px;
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .footer-contact i {
        color: var(--primary);
        width: 16px;
    }
    .footer-bottom {
        border-top: 1px solid var(--border);
        margin-top: 40px;
        padding: 20px 0;
        text-align: center;
        color: var(--text-3);
        font-size: 13px;
    }

    /* ========== 响应式 ========== */
    @media (max-width: 992px) {
        .navbar-collapse {
            background: var(--bg-main);
            border-radius: 12px;
            padding: 16px;
            margin-top: 12px;
            border: 1px solid var(--border);
        }
        .header-actions {
            margin-left: 0;
            margin-top: 12px;
        }
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .article-hero {
            padding: 56px 0 48px;
        }
        .article-title {
            font-size: 36px;
        }
    }
    @media (max-width: 768px) {
        .article-hero {
            padding: 44px 0 36px;
        }
        .article-title {
            font-size: 30px;
        }
        .section-title {
            font-size: 24px;
        }
        .cta-title {
            font-size: 28px;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .section-head {
            flex-direction: column;
            gap: 12px;
            align-items: flex-start;
        }
        .article-main {
            padding: 36px 0 56px;
        }
        .article-excerpt-card {
            padding: 16px;
        }
        .article-footer-bar {
            flex-direction: column;
            align-items: flex-start;
        }
        .not-found-wrap {
            padding: 80px 0 60px;
        }
    }
    @media (max-width: 520px) {
        .article-meta {
            gap: 10px 14px;
            font-size: 13px;
        }
        .article-content {
            font-size: 15px;
        }
        .article-content h2 {
            font-size: 22px;
        }
        .cta-actions .btn {
            width: 100%;
        }
        .logo-text {
            font-size: 19px;
        }
    }

/* roulang page: category2 */
:root {
  --bg-main: #0A0E14;
  --bg-alt: #131A24;
  --bg-card: #141B26;
  --primary: #00E68C;
  --primary-light: #00FFA3;
  --accent: #7C4DFF;
  --signal: #FF6B35;
  --text: #E8EDF2;
  --text-2: #94A1B0;
  --text-3: #5E6B7A;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(0,230,140,0.4);
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 40px;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 24px rgba(0,230,140,0.12);
  --transition: 0.3s ease;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-light);
}

ul {
  list-style: none;
}

.container {
  max-width: 1320px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10,14,20,0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(10,14,20,0.95);
  box-shadow: 0 4px 30px rgba(0,0,0,0.45);
}

.navbar {
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #0A0E14;
  font-weight: 900;
  font-size: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.5px;
  box-shadow: 0 0 20px rgba(0,230,140,0.3);
}

.logo-text {
  font-size: 22px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: 1px;
}

.logo-text span {
  color: var(--primary);
}

.navbar-nav {
  gap: 4px;
}

.navbar-nav .nav-link {
  color: var(--text-2);
  font-weight: 600;
  font-size: 15px;
  padding: 8px 18px !important;
  border-radius: 30px;
  transition: var(--transition);
  position: relative;
}

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

.navbar-nav .nav-link.active {
  color: var(--primary);
  background: rgba(0,230,140,0.08);
}

.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(0,230,140,0.6);
}

.header-actions .btn-primary {
  background: var(--primary);
  border: none;
  color: #08120C;
  font-weight: 800;
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  transition: var(--transition);
  box-shadow: 0 0 15px rgba(0,230,140,0.25);
}

.header-actions .btn-primary:hover {
  background: var(--primary-light);
  box-shadow: 0 0 24px rgba(0,230,140,0.4);
  transform: translateY(-2px);
  color: #08120C;
}

.navbar-toggler {
  border: 1px solid var(--border);
  background: transparent;
  padding: 6px 10px;
  border-radius: 6px;
}

.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='%2300E68C' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
  width: 24px;
  height: 24px;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(0,230,140,0.2);
}

/* ===== Hero ===== */
.category-hero {
  position: relative;
  padding: 160px 0 100px;
  background: linear-gradient(180deg, rgba(10,14,20,0.35) 0%, rgba(10,14,20,0.8) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
}

.category-hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0,230,140,0.22) 0%, transparent 70%);
  pointer-events: none;
}

.category-hero::after {
  content: 'J9';
  position: absolute;
  bottom: -60px;
  right: 30px;
  font-size: 220px;
  font-weight: 900;
  color: rgba(255,255,255,0.03);
  line-height: 1;
  pointer-events: none;
  letter-spacing: -6px;
}

.category-hero .container {
  position: relative;
  z-index: 2;
}

.category-hero .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,230,140,0.12);
  border: 1px solid rgba(0,230,140,0.3);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: var(--radius-badge);
  letter-spacing: 2px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.category-hero h1 {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text);
}

.category-hero h1 .j9-highlight {
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.category-hero p.lead-desc {
  font-size: 17px;
  color: var(--text-2);
  max-width: 620px;
  line-height: 1.9;
  margin-bottom: 32px;
}

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

.btn-primary-brand {
  background: var(--primary);
  border: none;
  color: #08120C;
  font-weight: 800;
  padding: 12px 30px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  transition: var(--transition);
  box-shadow: 0 0 18px rgba(0,230,140,0.25);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary-brand:hover {
  background: var(--primary-light);
  color: #08120C;
  box-shadow: 0 0 28px rgba(0,230,140,0.42);
  transform: translateY(-2px);
}

.btn-outline-brand {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--text);
  font-weight: 700;
  padding: 12px 30px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-outline-brand:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(0,230,140,0.08);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.hero-stats .stat-item .stat-num {
  font-size: 30px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
}

.hero-stats .stat-item .stat-label {
  font-size: 13px;
  color: var(--text-3);
  margin-top: 4px;
}

/* ===== Category Switch ===== */
.category-switch-wrap {
  padding: 30px 0 0;
  background: var(--bg-main);
}

.category-switch {
  display: inline-flex;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 40px;
  padding: 5px;
  gap: 4px;
}

.category-switch a {
  padding: 10px 26px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 15px;
  color: var(--text-2);
  transition: var(--transition);
}

.category-switch a:hover {
  color: var(--primary);
}

.category-switch a.active {
  background: var(--primary);
  color: #08120C;
  box-shadow: 0 4px 15px rgba(0,230,140,0.3);
}

/* ===== Section Common ===== */
.section-padding {
  padding: 80px 0;
}

.section-alt {
  background: var(--bg-alt);
  position: relative;
}

.section-header {
  margin-bottom: 48px;
}

.section-header .section-tag {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 10px;
}

.section-header h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-2);
  font-size: 15px;
  max-width: 640px;
}

/* ===== Value Props ===== */
.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.value-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.value-card:hover::after {
  opacity: 1;
}

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

.value-card .value-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(0,230,140,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 18px;
  transition: var(--transition);
}

.value-card:hover .value-icon {
  background: var(--primary);
  color: #08120C;
  box-shadow: 0 0 20px rgba(0,230,140,0.35);
}

.value-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== Guide Cards ===== */
.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.guide-card .guide-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.guide-card .guide-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.guide-card:hover .guide-thumb img {
  transform: scale(1.05);
}

.guide-card .guide-thumb .guide-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(10,14,20,0.85);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-badge);
  letter-spacing: 0.5px;
  border: 1px solid rgba(0,230,140,0.3);
}

.guide-card .guide-body {
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.guide-card .guide-body h3 {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--text);
}

.guide-card .guide-body h3 a {
  color: inherit;
}

.guide-card .guide-body h3 a:hover {
  color: var(--primary);
}

.guide-card .guide-body p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 14px;
  flex: 1;
}

.guide-card .guide-meta {
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.guide-card .guide-meta .guide-time {
  font-size: 13px;
  color: var(--text-3);
}

.guide-card .guide-meta .guide-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}

.guide-card .guide-meta .guide-link:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

/* ===== Scenarios ===== */
.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
}

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

.scenario-card .scenario-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.scenario-card .scenario-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.scenario-card:hover .scenario-thumb img {
  transform: scale(1.04);
}

.scenario-card .scenario-body {
  padding: 22px;
}

.scenario-card .scenario-body h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 8px;
}

.scenario-card .scenario-body p {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 0;
  line-height: 1.7;
}

/* ===== Steps ===== */
.steps-wrap {
  counter-reset: step;
}

.step-item {
  position: relative;
  padding: 30px 24px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  height: 100%;
  transition: var(--transition);
}

.step-item:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.step-item .step-num {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  color: #08120C;
  margin-bottom: 16px;
  box-shadow: 0 0 14px rgba(0,230,140,0.25);
}

.step-item h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 0;
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-wrap .accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px !important;
  margin-bottom: 14px;
  overflow: hidden;
}

.faq-wrap .accordion-button {
  background: var(--bg-card);
  color: var(--text);
  font-weight: 700;
  font-size: 16px;
  padding: 18px 22px;
  box-shadow: none;
  border-left: 3px solid transparent;
  border-radius: 10px !important;
  transition: var(--transition);
}

.faq-wrap .accordion-button:hover {
  border-left-color: var(--primary);
  background: rgba(0,230,140,0.04);
}

.faq-wrap .accordion-button:not(.collapsed) {
  background: rgba(0,230,140,0.06);
  color: var(--primary);
  border-left-color: var(--primary);
  box-shadow: none;
}

.faq-wrap .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(0,230,140,0.15);
}

.faq-wrap .accordion-button::after {
  filter: invert(1) hue-rotate(60deg);
}

.faq-wrap .accordion-body {
  background: var(--bg-card);
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.8;
  padding: 0 22px 20px;
}

/* ===== CTA ===== */
.cta-banner {
  background: linear-gradient(135deg, rgba(124,77,255,0.18), rgba(0,230,140,0.12)), var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  left: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(124,77,255,0.18) 0%, transparent 70%);
}

.cta-banner::after {
  content: 'GG';
  position: absolute;
  bottom: -40px;
  right: 20px;
  font-size: 140px;
  font-weight: 900;
  color: rgba(255,255,255,0.04);
  line-height: 1;
  pointer-events: none;
}

.cta-banner .container {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-banner h2 {
  font-size: clamp(28px, 3.5vw, 38px);
  font-weight: 900;
  margin-bottom: 14px;
}

.cta-banner p {
  color: var(--text-2);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 30px;
}

/* ===== Footer ===== */
.site-footer {
  background: #070B10;
  border-top: 1px solid var(--border);
  padding: 60px 0 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  width: 36px;
  height: 36px;
  font-size: 14px;
}

.footer-brand .logo-text {
  font-size: 20px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 0;
  max-width: 320px;
}

.footer-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 18px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-2);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-contact li {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact i {
  color: var(--primary);
  width: 18px;
}

.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
}

/* ===== Section Divider ===== */
.section-divider {
  background: linear-gradient(90deg, transparent, rgba(0,230,140,0.2), transparent);
  height: 1px;
  border: none;
  margin: 0;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .section-padding {
    padding: 60px 0;
  }
  .category-hero {
    padding: 140px 0 70px;
    min-height: 460px;
  }
  .hero-stats {
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .navbar-nav {
    padding: 12px 0;
    gap: 0;
  }
  .navbar-nav .nav-link {
    padding: 10px 16px !important;
  }
  .navbar-nav .nav-link.active::after {
    display: none;
  }
  .header-actions {
    padding: 8px 0 12px;
  }
  .category-hero {
    padding: 120px 0 50px;
    min-height: auto;
  }
  .category-hero h1 {
    font-size: 32px;
  }
  .hero-stats {
    gap: 20px;
    margin-top: 32px;
  }
  .section-padding {
    padding: 48px 0;
  }
  .section-header {
    margin-bottom: 32px;
  }
  .cta-banner {
    padding: 50px 0;
  }
  .category-switch {
    flex-wrap: nowrap;
    overflow-x: auto;
    max-width: 100%;
  }
  .category-switch a {
    white-space: nowrap;
  }
  .site-footer {
    padding: 40px 0 16px;
  }
}

@media (max-width: 520px) {
  .category-hero h1 {
    font-size: 26px;
  }
  .category-hero p.lead-desc {
    font-size: 15px;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .hero-stats .stat-item .stat-num {
    font-size: 24px;
  }
  .section-header h2 {
    font-size: 22px;
  }
  .value-card {
    padding: 20px 18px;
  }
  .guide-card .guide-body {
    padding: 16px;
  }
  .footer-title {
    margin-top: 16px;
  }
}