/* roulang page: index */
:root {
    --primary: #1B6B93;
    --primary-dark: #155B80;
    --primary-light: #EAF2F7;
    --secondary: #F5A623;
    --secondary-dark: #E0930A;
    --heading: #102A3C;
    --text: #21333F;
    --muted: #5A6B7B;
    --bg: #F5F8FA;
    --white: #FFFFFF;
    --border: #E5EBF0;
    --border-blue: rgba(27, 107, 147, 0.08);
    --dark: #0E3A52;
    --disabled: #C6D2DB;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --radius-round: 999px;
    --shadow: 0 4px 20px rgba(16, 42, 60, 0.07);
    --shadow-hover: 0 10px 30px rgba(16, 42, 60, 0.12);
    --shadow-btn: 0 4px 12px rgba(27, 107, 147, 0.25);
    --transition: all 0.2s ease-in-out;
    --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
    --container: 1200px;
}
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.75;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--primary-dark);
}
ul, ol {
    list-style: none;
}
button, input {
    font-family: inherit;
    border: none;
    background: none;
}
input:focus, button:focus, a:focus {
    outline: 2px solid rgba(27, 107, 147, 0.4);
    outline-offset: 2px;
}
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.5rem;
}
.row {
    max-width: var(--container);
}
.section {
    padding: 5rem 0;
}
.section-head {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 3rem;
}
.section-head h2 {
    font-size: clamp(1.75rem, 2.5vw, 2.2rem);
    font-weight: 700;
    color: var(--heading);
    line-height: 1.3;
    margin-bottom: 0.8rem;
}
.section-head p {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.75;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 46px;
    padding: 0 1.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1;
    transition: var(--transition);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
    border: 1px solid transparent;
}
.btn-lg {
    height: 48px;
    padding: 0 1.9rem;
    font-size: 1rem;
}
.btn-sm {
    height: 40px;
    padding: 0 1.2rem;
    font-size: 0.9375rem;
}
.btn-amber {
    background: var(--secondary);
    color: var(--heading);
    border-color: var(--secondary);
    box-shadow: var(--shadow-btn);
}
.btn-amber:hover {
    background: var(--secondary-dark);
    border-color: var(--secondary-dark);
    color: var(--heading);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(245, 166, 35, 0.35);
}
.btn-outline {
    background: var(--white);
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline:hover {
    background: rgba(27, 107, 147, 0.05);
    color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
}
.btn-white-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.75);
}
.btn-white-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
    border-color: var(--white);
    transform: translateY(-2px);
}
.tag {
    display: inline-block;
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.5;
}
.tag-amber {
    background: rgba(245, 166, 35, 0.14);
    color: #9a6510;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(16, 42, 60, 0.04);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 1.5rem;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--heading);
    line-height: 1;
    flex-shrink: 0;
}
.logo svg {
    width: 34px;
    height: 34px;
}
.logo span {
    letter-spacing: 0.02em;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.nav-link {
    position: relative;
    padding: 0.45rem 1rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}
.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}
.nav-link.active::after {
    content: "";
    position: absolute;
    left: 1rem;
    right: 1rem;
    bottom: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.search-box {
    position: relative;
}
.search-input {
    height: 40px;
    width: 220px;
    border: 1px solid #D5DEE5;
    border-radius: var(--radius-round);
    background: var(--white);
    padding: 0 1.1rem 0 2.4rem;
    font-size: 0.875rem;
    color: var(--text);
    transition: var(--transition);
}
.search-input::placeholder {
    color: #9aabba;
}
.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(27, 107, 147, 0.12);
}
.search-box::before {
    content: "\f002";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 0.875rem;
    color: #9aabba;
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    cursor: pointer;
}
.hamburger span {
    display: block;
    height: 2px;
    background: var(--heading);
    border-radius: 2px;
    transition: var(--transition);
}
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: var(--white);
    padding: 1.5rem;
    flex-direction: column;
    gap: 0.5rem;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(16, 42, 60, 0.12);
    transform: translateX(100%);
    transition: transform 0.3s ease;
}
.mobile-menu.open {
    transform: translateX(0);
}
.mobile-menu .search-input {
    width: 100%;
    margin-bottom: 1rem;
}
.mobile-menu a.nav-link {
    font-size: 1.125rem;
    line-height: 2.5rem;
    color: var(--heading);
    border-radius: var(--radius-sm);
    padding: 0 0.75rem;
}
.mobile-menu a.nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
}
.mobile-menu .btn {
    margin-top: 1rem;
    width: 100%;
}
.hero {
    position: relative;
    background: linear-gradient(135deg, #EAF2F7 0%, #F5F8FA 70%);
    padding: 5.5rem 0 5rem;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: 0.07;
    pointer-events: none;
}
.hero .container {
    position: relative;
    z-index: 1;
}
.hero h1 {
    font-size: clamp(2.2rem, 4.4vw, 3.4rem);
    font-weight: 700;
    line-height: 1.25;
    color: var(--heading);
    margin-bottom: 1.1rem;
    letter-spacing: 0.01em;
}
.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--muted);
    max-width: 520px;
    margin-bottom: 2rem;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.6rem;
}
.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 1.4rem;
    color: var(--muted);
    font-size: 0.875rem;
}
.hero-trust span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.hero-trust i {
    color: var(--primary);
    font-size: 0.8125rem;
}
.hero-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-hover);
    background: var(--white);
    aspect-ratio: 4 / 3;
}
.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-float-card {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.9rem 1.2rem;
    box-shadow: var(--shadow);
    backdrop-filter: blur(4px);
}
.hero-float-card p {
    font-size: 0.8125rem;
    color: var(--muted);
    margin-bottom: 0.4rem;
}
.hero-float-card a {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary);
    margin-top: 0.15rem;
}
.hero-float-card a:hover {
    color: var(--secondary-dark);
}
.hero-col-pad {
    padding-right: 2rem;
}
@media (max-width: 1024px) {
    .hero-col-pad {
        padding-right: 0;
        margin-bottom: 2.5rem;
    }
    .hero {
        padding: 4rem 0;
    }
}
.features {
    background: var(--white);
}
.feature-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.8rem 1.5rem;
    height: 100%;
    transition: var(--transition);
}
.feature-card:hover {
    background: var(--white);
    border-color: rgba(27, 107, 147, 0.2);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.feature-icon {
    width: 46px;
    height: 46px;
    border-radius: 10px;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}
.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--heading);
}
.feature-card p {
    font-size: 0.9375rem;
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 0;
}
.steps {
    background: var(--bg);
}
.step-card {
    background: var(--white);
    border: 1px solid var(--border-blue);
    border-radius: var(--radius);
    padding: 2rem 1.6rem;
    height: 100%;
    position: relative;
    transition: var(--transition);
}
.step-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: rgba(27, 107, 147, 0.2);
    transform: translateY(-4px);
}
.step-num {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 1rem;
    letter-spacing: 0.04em;
}
.step-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    color: var(--heading);
}
.step-card p {
    font-size: 0.9375rem;
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 0;
}
.step-icon {
    position: absolute;
    right: 1.2rem;
    bottom: 1.2rem;
    color: var(--primary-light);
    font-size: 2rem;
    opacity: 0.8;
}
.cases {
    background: var(--white);
}
.case-large-card {
    display: flex;
    flex-wrap: wrap;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    transition: var(--transition);
}
.case-large-card:hover {
    box-shadow: var(--shadow-hover);
}
.case-media {
    flex: 1 1 45%;
    min-height: 260px;
    background: var(--primary-light);
}
.case-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 260px;
}
.case-content {
    flex: 1 1 55%;
    padding: 2.2rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.case-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.4rem;
    color: var(--heading);
}
.case-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}
.case-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--text);
}
.case-list li::before {
    content: "";
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    margin-top: 0.55rem;
    border-radius: 50%;
    background: var(--primary);
}
.case-list strong {
    font-weight: 600;
    color: var(--primary);
}
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
}
.stat-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.6rem 1rem;
    text-align: center;
    transition: var(--transition);
}
.stat-item:hover {
    border-color: rgba(27, 107, 147, 0.2);
    box-shadow: var(--shadow);
}
.stat-item strong {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.3;
    margin-bottom: 0.3rem;
}
.stat-item span {
    font-size: 0.875rem;
    color: var(--muted);
}
.news {
    background: var(--bg);
}
.announcement-panel {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.6rem 1.4rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.4rem;
}
.announcement-panel h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--heading);
    margin-bottom: 1rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border);
}
.announcement-panel ul li {
    margin-bottom: 0.7rem;
}
.announcement-panel ul li a {
    font-size: 0.9rem;
    color: var(--text);
    line-height: 1.6;
    display: block;
    transition: var(--transition);
}
.announcement-panel ul li a:hover {
    color: var(--primary);
    padding-left: 4px;
}
.announcement-panel ul li:last-child {
    margin-bottom: 0;
}
.news-cover {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.news-cover img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}
.news-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.news-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-left: 3px solid transparent;
    border-radius: var(--radius);
    padding: 1.4rem 1.5rem;
    box-shadow: 0 2px 10px rgba(16, 42, 60, 0.04);
    transition: var(--transition);
}
.news-item:hover {
    border-color: rgba(27, 107, 147, 0.2);
    border-left-color: var(--primary);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}
.news-item-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.7rem;
}
.news-item-date {
    font-size: 0.8125rem;
    color: var(--muted);
}
.news-item h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.news-item h3 a {
    color: var(--heading);
    transition: var(--transition);
}
.news-item h3 a:hover {
    color: var(--primary);
}
.news-item p {
    font-size: 0.9375rem;
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.news-item-more {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary);
}
.news-item-more:hover {
    color: var(--secondary-dark);
}
.news-empty {
    background: var(--white);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 1.5rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.9375rem;
}
.news-footer-link {
    margin-top: 1.6rem;
    text-align: right;
}
.news-footer-link a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--primary);
    transition: var(--transition);
}
.news-footer-link a:hover {
    color: var(--secondary-dark);
}
.faq {
    background: var(--white);
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.faq-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}
.faq-item.active {
    background: var(--white);
    border-color: rgba(27, 107, 147, 0.18);
    box-shadow: var(--shadow);
}
.faq-question {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    width: 100%;
    padding: 1.1rem 1.4rem;
    cursor: pointer;
    text-align: left;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    min-height: 48px;
}
.faq-q-mark, .faq-a-mark {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 700;
}
.faq-q-mark {
    background: var(--primary-light);
    color: var(--primary);
}
.faq-a-mark {
    background: rgba(245, 166, 35, 0.14);
    color: #9a6510;
}
.faq-q-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--heading);
    flex: 1;
}
.faq-arrow {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--muted);
    transition: transform 0.2s ease;
}
.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 1.4rem;
    transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
    max-height: 400px;
    padding: 0 1.4rem 1.4rem;
}
.faq-answer p {
    display: flex;
    gap: 0.9rem;
    font-size: 0.9375rem;
    color: var(--muted);
    line-height: 1.8;
    margin-bottom: 0;
}
.faq-more {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 2rem;
    text-align: center;
    background: var(--primary-light);
    border: 1px solid rgba(27, 107, 147, 0.14);
    border-radius: var(--radius);
    padding: 1.1rem 1.5rem;
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
}
.faq-more p {
    font-size: 0.9375rem;
    color: var(--text);
    margin-bottom: 0;
}
.faq-more a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--primary);
    white-space: nowrap;
}
.faq-more a:hover {
    color: var(--secondary-dark);
}
.cta-section {
    background: var(--dark);
    text-align: center;
    padding: 5.5rem 0;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-3.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.06;
}
.cta-section .container {
    position: relative;
    z-index: 1;
}
.cta-section h2 {
    font-size: clamp(1.9rem, 3vw, 2.6rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
    line-height: 1.3;
}
.cta-section .cta-desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}
.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}
.cta-note {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}
.footer {
    background: var(--white);
    border-top: 2px solid transparent;
    background-image: linear-gradient(var(--white), var(--white)), linear-gradient(90deg, var(--primary), var(--secondary));
    background-origin: padding-box, border-box;
    background-clip: padding-box, border-box;
}
.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 2.5rem;
    padding: 4rem 0 2.5rem;
}
.footer-brand h4 {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--heading);
    margin-bottom: 1rem;
}
.footer-brand h4 svg {
    width: 30px;
    height: 30px;
}
.footer-brand p {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 1.4rem;
    max-width: 260px;
}
.social-links {
    display: flex;
    gap: 0.8rem;
}
.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 1rem;
    transition: var(--transition);
}
.social-links a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}
.footer-col h5 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--heading);
    margin-bottom: 1.2rem;
}
.footer-col ul li {
    margin-bottom: 0.6rem;
}
.footer-col ul li a {
    font-size: 0.9rem;
    color: var(--muted);
    transition: var(--transition);
    display: inline-block;
}
.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 4px;
}
.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: var(--muted);
    margin-bottom: 0.8rem;
    line-height: 1.6;
}
.footer-contact i {
    margin-top: 4px;
    color: var(--primary);
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 1.4rem 0;
    background: var(--dark);
}
.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.8rem;
}
.footer-bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}
@media (max-width: 1024px) {
    .header-inner {
        height: 64px;
    }
    .main-nav, .header-actions {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .mobile-menu {
        display: flex;
    }
    .section {
        padding: 4rem 0;
    }
    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
        padding: 3rem 0 2rem;
    }
}
@media (max-width: 768px) {
    .hero {
        padding: 3rem 0 3.5rem;
    }
    .hero h1 {
        font-size: clamp(1.9rem, 5vw, 2.4rem);
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .case-media {
        flex: 1 1 100%;
    }
    .case-content {
        flex: 1 1 100%;
        padding: 1.8rem 1.5rem;
    }
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-main {
        grid-template-columns: 1fr;
        gap: 2.2rem;
    }
    .section {
        padding: 2.5rem 0;
    }
    .section-head {
        margin-bottom: 2rem;
    }
}
@media (max-width: 520px) {
    .hero-actions {
        flex-direction: column;
        gap: 0.8rem;
    }
    .btn-lg {
        width: 100%;
    }
    .hero-trust {
        gap: 0.8rem;
    }
    .stats-row {
        grid-template-columns: 1fr 1fr;
        gap: 0.8rem;
    }
    .stat-item strong {
        font-size: 1.3rem;
    }
    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }
    .mobile-menu .search-input {
        margin-bottom: 0.6rem;
    }
}

/* roulang page: category1 */
:root {
            --primary: #1B6B93;
            --primary-dark: #155B80;
            --primary-deep: #0E3A52;
            --accent: #F5A623;
            --accent-dark: #E0930A;
            --bg: #F5F8FA;
            --white: #FFFFFF;
            --text: #21333F;
            --heading: #102A3C;
            --text-light: #5A6B7B;
            --border: #E5EBF0;
            --border-soft: rgba(27, 107, 147, 0.08);
            --radius: 12px;
            --radius-btn: 8px;
            --shadow: 0 4px 20px rgba(16, 42, 60, 0.07);
            --shadow-hover: 0 10px 30px rgba(16, 42, 60, 0.12);
            --shadow-btn: 0 4px 12px rgba(27, 107, 147, 0.25);
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --container: 1200px;
        }

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

        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--heading);
            line-height: 1.3;
            margin: 0 0 0.8em;
        }

        p {
            margin: 0 0 1.2em;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.2s ease-in-out;
        }

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

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

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 1.5rem;
            width: 100%;
        }

        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(16, 42, 60, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--heading);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .brand-logo svg {
            width: 34px;
            height: 34px;
        }

        .brand-logo:hover {
            color: var(--heading);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text);
            padding: 0.5rem 0.25rem;
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.2s ease-in-out;
        }

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

        .nav-link:hover::after {
            width: 100%;
        }

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

        .nav-link.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--white);
            border: 1px solid #D5DEE5;
            border-radius: 999px;
            padding: 0 1rem;
            height: 40px;
            width: 240px;
            transition: all 0.2s ease-in-out;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 107, 147, 0.12);
        }

        .search-box i {
            color: var(--text-light);
            font-size: 0.875rem;
            margin-right: 8px;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 0.875rem;
            color: var(--text);
            width: 100%;
            font-family: var(--font);
        }

        .search-box input::placeholder {
            color: #9AAAB8;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: var(--heading);
            font-size: 0.9375rem;
            font-weight: 600;
            padding: 0.625rem 1.25rem;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            height: 44px;
            letter-spacing: 0.3px;
            transition: all 0.2s ease-in-out;
            box-shadow: 0 4px 12px rgba(245, 166, 35, 0.25);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: var(--heading);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(245, 166, 35, 0.3);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--white);
            font-size: 0.9375rem;
            font-weight: 600;
            padding: 0.625rem 1.25rem;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            height: 44px;
            transition: all 0.2s ease-in-out;
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--white);
            color: var(--primary);
            font-size: 0.9375rem;
            font-weight: 600;
            padding: 0.625rem 1.25rem;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary);
            cursor: pointer;
            height: 44px;
            transition: all 0.2s ease-in-out;
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: rgba(27, 107, 147, 0.05);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .hamburger span {
            width: 22px;
            height: 2px;
            background: var(--heading);
            border-radius: 2px;
            transition: all 0.2s ease;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--white);
            padding: 1.5rem;
            box-shadow: 0 12px 30px rgba(16, 42, 60, 0.12);
            z-index: 99;
            border-bottom: 1px solid var(--border);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 1rem;
            height: 44px;
            margin-bottom: 1rem;
        }

        .mobile-search i {
            color: var(--text-light);
            margin-right: 8px;
        }

        .mobile-search input {
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
            font-size: 0.9375rem;
            font-family: var(--font);
        }

        .mobile-link {
            display: block;
            font-size: 1.125rem;
            line-height: 2.5rem;
            color: var(--text);
            font-weight: 500;
            border-bottom: 1px solid var(--border);
        }

        .mobile-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-cta {
            margin-top: 1rem;
            width: 100%;
        }

        /* ====== Page Hero ====== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #EAF2F7 0%, #F5F8FA 100%);
            padding: 4.5rem 0;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center 40%;
            opacity: 0.3;
            z-index: 0;
        }

        .page-hero-content {
            position: relative;
            z-index: 1;
            max-width: 720px;
        }

        .page-hero .badge {
            display: inline-block;
            background: var(--accent);
            color: var(--heading);
            font-size: 0.8125rem;
            font-weight: 600;
            padding: 0.375rem 1rem;
            border-radius: 999px;
            letter-spacing: 0.5px;
            margin-bottom: 1.25rem;
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 700;
            color: var(--heading);
            line-height: 1.25;
            margin-bottom: 0.75rem;
        }

        .page-hero p {
            font-size: 1.125rem;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 620px;
        }

        /* ====== Category Section ====== */
        .category-section {
            padding: 4.5rem 0;
        }

        .category-nav {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 1.75rem;
            box-shadow: var(--shadow);
            position: sticky;
            top: 96px;
        }

        .category-nav h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border);
            color: var(--heading);
        }

        .category-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .category-nav li {
            margin-bottom: 0.5rem;
        }

        .category-nav li a {
            display: flex;
            align-items: center;
            padding: 0.625rem 0.875rem;
            border-radius: 8px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text);
            transition: all 0.2s ease;
            border-left: 3px solid transparent;
        }

        .category-nav li a i {
            margin-right: 10px;
            font-size: 0.875rem;
            color: var(--text-light);
        }

        .category-nav li a:hover {
            background: var(--bg);
            color: var(--primary);
            border-left-color: var(--primary);
        }

        .category-nav li.active a {
            background: rgba(27, 107, 147, 0.06);
            color: var(--primary);
            border-left-color: var(--primary);
            font-weight: 600;
        }

        .sidebar-card {
            margin-top: 1.5rem;
            background: var(--bg);
            border-radius: 10px;
            padding: 1.25rem;
            border: 1px solid var(--border);
        }

        .sidebar-card h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .sidebar-card p {
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0.875rem;
        }

        .sidebar-card .btn-primary {
            width: 100%;
            height: 40px;
            font-size: 0.875rem;
        }

        .category-list {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .content-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            display: flex;
            transition: all 0.2s ease-in-out;
            position: relative;
        }

        .content-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 0 4px 4px;
            transition: height 0.2s ease;
            z-index: 2;
        }

        .content-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(27, 107, 147, 0.2);
        }

        .content-card:hover::before {
            height: 100%;
        }

        .content-thumb {
            flex-shrink: 0;
            width: 260px;
            min-height: 160px;
            background: #EAF2F7;
            overflow: hidden;
            position: relative;
        }

        .content-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .content-info {
            padding: 1.5rem 1.75rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .content-info .tag {
            display: inline-block;
            align-self: flex-start;
            background: #EAF2F7;
            color: var(--primary);
            font-size: 0.8125rem;
            font-weight: 500;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            margin-bottom: 0.625rem;
        }

        .content-info h3 {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 0.5rem;
            transition: color 0.2s ease;
        }

        .content-info h3 a {
            color: var(--heading);
        }

        .content-info h3 a:hover {
            color: var(--primary);
        }

        .content-info p {
            font-size: 0.9375rem;
            color: var(--text-light);
            line-height: 1.65;
            margin-bottom: 0.75rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            font-size: 0.8125rem;
            color: var(--text-light);
        }

        .content-meta span {
            display: flex;
            align-items: center;
            gap: 0.375rem;
        }

        .content-meta .read-more {
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s ease;
        }

        .content-meta .read-more:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        /* ====== Stats ====== */
        .stats-section {
            background: var(--white);
            padding: 3.5rem 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }

        .stat-item {
            text-align: center;
            padding: 1rem;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 0.375rem;
        }

        .stat-label {
            font-size: 0.9375rem;
            color: var(--text-light);
        }

        /* ====== Scenarios ====== */
        .scenarios-section {
            padding: 5rem 0;
        }

        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 3rem;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .scenario-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow);
            text-align: center;
            transition: all 0.2s ease;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(27, 107, 147, 0.18);
        }

        .scenario-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(27, 107, 147, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.375rem;
            color: var(--primary);
        }

        .scenario-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.625rem;
        }

        .scenario-card p {
            font-size: 0.9375rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ====== CTA Ribbon ====== */
        .cta-ribbon {
            padding: 2.5rem 0;
        }

        .cta-ribbon-content {
            background: var(--white);
            border: 1px solid rgba(27, 107, 147, 0.12);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius);
            padding: 2rem 2.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            box-shadow: var(--shadow);
            flex-wrap: wrap;
        }

        .cta-ribbon-info {
            flex: 1;
        }

        .cta-ribbon-info h3 {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
        }

        .cta-ribbon-info p {
            font-size: 0.9375rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ====== FAQ ====== */
        .faq-section {
            padding: 5rem 0;
            background: var(--white);
        }

        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.875rem;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg);
            transition: all 0.2s ease;
        }

        .faq-item:hover {
            border-color: rgba(27, 107, 147, 0.25);
        }

        .faq-item.active {
            border-color: rgba(27, 107, 147, 0.3);
            box-shadow: var(--shadow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 0.875rem;
            width: 100%;
            background: var(--white);
            border: none;
            padding: 1.125rem 1.5rem;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            color: var(--heading);
            font-family: var(--font);
            text-align: left;
            min-height: 56px;
            transition: all 0.2s ease;
        }

        .faq-q-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(27, 107, 147, 0.1);
            color: var(--primary);
            font-size: 0.8125rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-arrow {
            margin-left: auto;
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            transition: transform 0.2s ease;
            color: var(--text-light);
        }

        .faq-item.active .faq-arrow {
            transform: rotate(90deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 1.5rem;
            background: var(--bg);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 1.25rem;
        }

        .faq-a-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.15);
            color: var(--accent-dark);
            font-size: 0.8125rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-answer-inner {
            display: flex;
            gap: 0.875rem;
            font-size: 0.9375rem;
            color: var(--text-light);
            line-height: 1.8;
        }

        .faq-note {
            text-align: center;
            margin-top: 2rem;
            font-size: 0.9375rem;
            color: var(--text-light);
        }

        .faq-note a {
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px solid rgba(27, 107, 147, 0.3);
            padding-bottom: 2px;
        }

        .faq-note a:hover {
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        /* ====== Footer ====== */
        .footer {
            background: var(--white);
            border-top: 2px solid var(--primary);
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            padding: 4rem 0 3rem;
        }

        .footer-brand h4 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--heading);
            margin-bottom: 1rem;
        }

        .footer-brand h4 svg {
            width: 30px;
            height: 30px;
        }

        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 320px;
        }

        .social-links {
            display: flex;
            gap: 0.75rem;
            margin-top: 1.25rem;
        }

        .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 0.9375rem;
            transition: all 0.2s ease;
        }

        .social-links a:hover {
            background: rgba(27, 107, 147, 0.08);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .footer-col h5 {
            font-size: 0.9375rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            color: var(--heading);
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.875rem;
            color: var(--text-light);
            transition: all 0.2s ease;
        }

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

        .footer-contact li {
            font-size: 0.875rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            background: var(--primary-deep);
            padding: 1.25rem 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.8125rem;
            margin: 0;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.8125rem;
        }

        .footer-bottom a:hover {
            color: var(--white);
        }

        /* ====== Responsive ====== */
        @media screen and (max-width: 1024px) {
            .main-nav {
                gap: 1.25rem;
            }

            .search-box {
                width: 180px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }

            .content-thumb {
                width: 200px;
            }
        }

        @media screen and (max-width: 768px) {
            .header-inner .main-nav {
                display: none;
            }

            .header-inner .header-actions {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .page-hero {
                padding: 3rem 0;
            }

            .category-nav {
                position: static;
                margin-bottom: 2rem;
            }

            .footer-main {
                grid-template-columns: repeat(2, 1fr);
                gap: 2rem;
            }

            .cta-ribbon-content {
                flex-direction: column;
                text-align: center;
            }

            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 640px) {
            .page-hero h1 {
                font-size: 1.875rem;
            }

            .page-hero p {
                font-size: 1rem;
            }

            .content-card {
                flex-direction: column;
            }

            .content-thumb {
                width: 100%;
                min-height: 180px;
            }

            .content-info {
                padding: 1.25rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

            .stat-number {
                font-size: 1.5rem;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
            }

            .footer-main {
                grid-template-columns: 1fr;
            }

            .faq-question {
                font-size: 0.9375rem;
                padding: 1rem 1.125rem;
            }

            .faq-answer-inner {
                font-size: 0.875rem;
            }

            .category-section {
                padding: 2.5rem 0;
            }

            .scenarios-section,
            .faq-section {
                padding: 3rem 0;
            }

            .stats-section {
                padding: 2.5rem 0;
            }
        }

/* roulang page: article */
:root {
            --primary: #1B6B93;
            --primary-hover: #155B80;
            --primary-deep: #0E3A52;
            --accent: #F5A623;
            --accent-hover: #E0930A;
            --bg: #F5F8FA;
            --white: #FFFFFF;
            --text: #21333F;
            --heading: #102A3C;
            --muted: #5A6B7B;
            --line: #E5EBF0;
            --border: rgba(27, 107, 147, 0.08);
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(16, 42, 60, 0.07);
            --shadow-hover: 0 10px 30px rgba(16, 42, 60, 0.12);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --max-width: 1200px;
            --transition: all 0.2s ease-in-out;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        body,
        h1,
        h2,
        h3,
        h4,
        h5,
        h6,
        p,
        ul,
        ol,
        figure {
            margin: 0;
            padding: 0;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

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

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

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            background: transparent;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-amber {
            background: var(--accent);
            color: var(--heading);
            box-shadow: 0 4px 12px rgba(245, 166, 35, 0.3);
        }

        .btn-amber:hover {
            background: var(--accent-hover);
            color: var(--heading);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(245, 166, 35, 0.35);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 107, 147, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(27, 107, 147, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-outline:hover {
            background: rgba(27, 107, 147, 0.05);
            transform: translateY(-2px);
        }

        .main-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--white);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 2px 12px rgba(16, 42, 60, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
            height: 72px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand svg {
            width: 36px;
            height: 36px;
            display: block;
        }

        .brand-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--heading);
            letter-spacing: 0.02em;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            position: relative;
            color: var(--muted);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 2px;
        }

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

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .header-search {
            position: relative;
        }

        .header-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--muted);
            font-size: 14px;
            pointer-events: none;
        }

        .header-search input {
            width: 200px;
            height: 40px;
            border: 1px solid #D5DEE5;
            border-radius: 999px;
            background: var(--white);
            padding: 0 14px 0 38px;
            font-size: 14px;
            color: var(--text);
            transition: var(--transition);
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 107, 147, 0.12);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            background: transparent;
            border: none;
            cursor: pointer;
            flex-shrink: 0;
        }

        .hamburger span {
            height: 2px;
            background: var(--heading);
            width: 20px;
            border-radius: 2px;
            transition: var(--transition);
        }

        .mobile-actions {
            display: none;
        }

        .main-wrap {
            min-height: 60vh;
        }

        .breadcrumb-wrap {
            padding: 22px 0 0;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--muted);
        }

        .breadcrumb a {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: #B0B9C2;
        }

        .article-section {
            padding: 32px 0 56px;
        }

        .article-wrap {
            max-width: 760px;
            margin: 0 auto;
            background: var(--white);
            border-radius: 16px;
            box-shadow: var(--shadow);
            padding: 40px 48px;
            border: 1px solid var(--border);
        }

        .article-header {
            margin-bottom: 28px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--line);
        }

        .article-header h1 {
            font-size: clamp(1.8rem, 3.2vw, 2.2rem);
            font-weight: 700;
            line-height: 1.35;
            color: var(--heading);
            margin: 0 0 16px;
            word-break: break-word;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: var(--muted);
        }

        .article-meta i {
            margin-right: 6px;
            color: var(--primary);
        }

        .article-body {
            font-size: 1.0625rem;
            line-height: 1.9;
            color: var(--text);
            word-break: break-word;
        }

        .article-body p {
            margin: 0 0 1.4em;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin: 2rem 0 1rem;
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--heading);
            margin: 1.8rem 0 0.8rem;
        }

        .article-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--heading);
            margin: 1.4rem 0 0.6rem;
        }

        .article-body img {
            border-radius: 10px;
            margin: 1.5rem 0;
            width: 100%;
            height: auto;
        }

        .article-body blockquote {
            background: #F0F6FA;
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
            color: var(--muted);
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin: 0 0 1.4em;
        }

        .article-body li {
            margin-bottom: 0.4em;
            line-height: 1.8;
        }

        .article-body a {
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.9375rem;
        }

        .article-body th {
            background: var(--primary);
            color: #fff;
            text-align: left;
            padding: 10px 14px;
            font-weight: 600;
        }

        .article-body td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--line);
        }

        .article-body pre {
            background: var(--primary-deep);
            color: #E6EDF3;
            padding: 18px;
            border-radius: 10px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.7;
            margin: 1.5rem 0;
        }

        .empty-article {
            text-align: center;
            padding: 60px 20px;
            color: var(--muted);
        }

        .empty-article i {
            font-size: 3rem;
            color: #C6D2DB;
            margin-bottom: 16px;
        }

        .empty-article p {
            margin-bottom: 20px;
        }

        .article-tags {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--line);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }

        .article-tags span {
            font-size: 14px;
            color: var(--muted);
        }

        .tag {
            background: var(--bg);
            border: 1px solid var(--line);
            color: var(--primary);
            border-radius: 8px;
            padding: 5px 14px;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            transition: var(--transition);
        }

        .tag:hover {
            background: #EAF2F7;
            color: var(--primary);
        }

        .article-back {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 40px;
        }

        .article-back a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            padding: 6px 0;
        }

        .article-back a:hover {
            color: var(--primary);
        }

        .help-bar {
            max-width: 760px;
            margin: 0 auto 40px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .help-info {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--muted);
            font-size: 14px;
        }

        .help-info i {
            color: var(--primary);
            font-size: 22px;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(27, 107, 147, 0.3);
            outline-offset: 2px;
        }

        .footer {
            background: var(--white);
            margin-top: 40px;
            position: relative;
        }

        .footer::before {
            content: '';
            display: block;
            height: 2px;
            background: linear-gradient(90deg, #1B6B93, #F5A623);
            width: 100%;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding: 56px 0 40px;
        }

        .footer-brand h4 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 14px;
            color: var(--heading);
        }

        .footer-brand h4 svg {
            width: 34px;
            height: 34px;
        }

        .footer-brand p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .social-links {
            display: flex;
            gap: 10px;
            margin-top: 16px;
        }

        .social-links a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg);
            color: var(--primary);
            border-radius: 50%;
            font-size: 15px;
            transition: var(--transition);
        }

        .social-links a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-col h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--heading);
            margin: 0 0 16px;
        }

        .footer-col ul {
            margin: 0;
            padding: 0;
        }

        .footer-col li {
            margin: 0 0 10px;
        }

        .footer-col a {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-col a:hover {
            color: var(--primary);
        }

        .footer-contact li {
            display: flex;
            gap: 10px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-contact i {
            color: var(--primary);
            width: 18px;
            margin-top: 5px;
            flex-shrink: 0;
        }

        .footer-bottom {
            background: var(--primary-deep);
            padding: 18px 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            margin: 0;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .header-nav {
                gap: 20px;
            }

            .header-search input {
                width: 160px;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 900px) {
            .header-inner {
                gap: 16px;
            }

            .hamburger {
                display: flex;
            }

            .header-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 20px;
                border-bottom: 1px solid var(--line);
                box-shadow: 0 16px 24px rgba(16, 42, 60, 0.08);
            }

            .header-nav.open {
                display: flex;
            }

            .header-nav .nav-link {
                padding: 14px 0;
                font-size: 18px;
                line-height: 2.5;
                border-bottom: 1px solid var(--line);
            }

            .header-nav .nav-link.active::after {
                display: none;
            }

            .desktop-actions {
                display: none;
            }

            .mobile-actions {
                display: flex;
                flex-direction: column;
                gap: 12px;
                margin-bottom: 12px;
            }

            .mobile-actions .header-search,
            .mobile-actions .header-search input {
                width: 100%;
            }

            .mobile-actions .header-search input {
                display: block;
            }

            .mobile-actions .btn-amber {
                width: 100%;
            }
        }

        @media (max-width: 640px) {
            .header-inner {
                height: 64px;
            }

            .header-nav {
                top: 64px;
            }

            .brand-name {
                font-size: 1rem;
            }

            .article-section {
                padding: 20px 0 40px;
            }

            .article-wrap {
                padding: 24px 18px;
                border-radius: 12px;
            }

            .article-header h1 {
                font-size: 1.4rem;
            }

            .article-meta {
                gap: 12px;
            }

            .article-body {
                font-size: 1rem;
            }

            .help-bar {
                padding: 16px;
                justify-content: center;
                text-align: center;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 40px 0 28px;
            }

            .footer-bottom .container {
                justify-content: center;
                text-align: center;
            }
        }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #1B6B93;
            --primary-dark: #155B80;
            --primary-light: #EAF2F7;
            --accent: #F5A623;
            --accent-dark: #E0930A;
            --text-main: #21333F;
            --text-title: #102A3C;
            --text-weak: #5A6B7B;
            --bg-page: #F5F8FA;
            --bg-card: #FFFFFF;
            --border: #E5EBF0;
            --border-strong: #D5DEE5;
            --deep: #0E3A52;
            --disabled: #C6D2DB;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(16, 42, 60, 0.07);
            --shadow-hover: 0 10px 30px rgba(16, 42, 60, 0.12);
            --shadow-btn: 0 4px 12px rgba(27, 107, 147, 0.25);
            --transition: all 0.2s ease-in-out;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ========== 容器 ========== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .row {
            max-width: none;
        }

        .row .columns {
            padding-left: 0.75rem;
            padding-right: 0.75rem;
        }

        /* ========== 导航 ========== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(16, 42, 60, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo svg {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-main);
            padding: 0.5rem 0;
            position: relative;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            opacity: 0;
            transform: scaleX(0.4);
            transition: var(--transition);
        }

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

        .nav-link:hover::after {
            opacity: 1;
            transform: scaleX(1);
        }

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

        .nav-link.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-shrink: 0;
        }

        .search-form {
            display: flex;
            align-items: center;
            background: var(--bg-page);
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            height: 40px;
            padding: 0 0.75rem 0 1rem;
            transition: var(--transition);
            width: 220px;
        }

        .search-form:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 107, 147, 0.12);
            background: var(--bg-card);
        }

        .search-form input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.875rem;
            color: var(--text-main);
            width: 100%;
        }

        .search-form input::placeholder {
            color: var(--disabled);
        }

        .search-form button {
            background: transparent;
            border: none;
            color: var(--text-weak);
            cursor: pointer;
            padding: 0 0.25rem;
            font-size: 0.875rem;
            transition: var(--transition);
        }

        .search-form button:hover {
            color: var(--primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 1.5rem;
            border-radius: var(--radius-btn);
            font-size: 0.9375rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--text-title);
            box-shadow: var(--shadow-btn);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: var(--text-title);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(245, 166, 35, 0.35);
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline {
            background: var(--bg-card);
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: none;
        }

        .btn-outline:hover {
            background: rgba(27, 107, 147, 0.05);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .menu-toggle {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.375rem;
            color: var(--text-title);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-panel {
            display: none;
            border-top: 1px solid var(--border);
            background: var(--bg-card);
            padding: 1rem 1.25rem 1.5rem;
            box-shadow: 0 8px 24px rgba(16, 42, 60, 0.1);
        }

        .mobile-panel.open {
            display: block;
        }

        .mobile-panel .mobile-nav-links {
            display: flex;
            flex-direction: column;
        }

        .mobile-panel .mobile-nav-links a {
            font-size: 1.125rem;
            line-height: 2.5rem;
            color: var(--text-main);
            padding: 0.25rem 0;
            border-bottom: 1px solid rgba(27, 107, 147, 0.06);
        }

        .mobile-panel .mobile-nav-links a:hover,
        .mobile-panel .mobile-nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-panel .search-form {
            width: 100%;
            margin-top: 1rem;
            background: var(--bg-page);
        }

        .mobile-panel .btn-accent {
            width: 100%;
            margin-top: 1rem;
        }

        /* ========== 分类 Hero ========== */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-color: var(--primary-light);
            padding: 4.5rem 0;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.85) 55%, rgba(255, 255, 255, 0.55) 100%);
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            font-size: 0.8125rem;
            color: var(--text-weak);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.375rem;
        }

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

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

        .breadcrumb .separator {
            color: var(--disabled);
            margin: 0 0.125rem;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .category-hero h1 {
            font-size: clamp(2rem, 3.5vw, 2.8rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-title);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

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

        .category-hero p {
            font-size: 1.0625rem;
            line-height: 1.75;
            color: var(--text-weak);
            max-width: 720px;
            margin-bottom: 1.75rem;
        }

        .category-hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.625rem;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            background: rgba(255, 255, 255, 0.85);
            border: 1px solid rgba(27, 107, 147, 0.12);
            border-radius: 999px;
            padding: 0.375rem 0.875rem;
            font-size: 0.8125rem;
            color: var(--primary);
            font-weight: 500;
            transition: var(--transition);
        }

        .hero-tag:hover {
            border-color: var(--primary);
            background: var(--bg-card);
        }

        .hero-tag i {
            font-size: 0.75rem;
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 5rem 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header h2 {
            font-size: clamp(1.75rem, 2.5vw, 2.2rem);
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--text-weak);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== 特色区块 ========== */
        .feature-section {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 4.5rem 0;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .feature-item {
            padding: 2rem 1.75rem;
            border-radius: var(--radius-card);
            border: 1px solid rgba(27, 107, 147, 0.08);
            background: var(--bg-card);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-item::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 0 3px 3px;
            transition: var(--transition);
        }

        .feature-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(27, 107, 147, 0.16);
        }

        .feature-item:hover::before {
            height: 100%;
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
            font-size: 1.375rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .feature-item:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }

        .feature-item h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 0.625rem;
        }

        .feature-item p {
            font-size: 0.9375rem;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ========== 游戏卡片瀑布 ========== */
        .games-section {
            padding: 5rem 0;
            background: var(--bg-page);
        }

        .game-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .game-card {
            background: var(--bg-card);
            border: 1px solid rgba(27, 107, 147, 0.08);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .game-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(27, 107, 147, 0.2);
        }

        .game-card-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--primary-light);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .game-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .game-card:hover .game-card-cover img {
            transform: scale(1.03);
        }

        .game-card-body {
            padding: 1.5rem 1.625rem 1.625rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .game-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 0.875rem;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 6px;
            padding: 0.25rem 0.625rem;
            line-height: 1.4;
        }

        .tag-accent {
            background: rgba(245, 166, 35, 0.14);
            color: #B05E00;
        }

        .game-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 0.625rem;
            line-height: 1.45;
            transition: var(--transition);
        }

        .game-card:hover h3 {
            color: var(--primary);
        }

        .game-card p {
            font-size: 0.9375rem;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 1.25rem;
            flex: 1;
        }

        .detail-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
            padding-top: 0.25rem;
        }

        .detail-link i {
            font-size: 0.75rem;
            transition: transform 0.2s ease;
        }

        .detail-link:hover {
            color: var(--primary-dark);
            gap: 0.75rem;
        }

        .detail-link:hover i {
            transform: translateX(2px);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 5rem 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border);
        }

        .faq-section .container {
            max-width: 860px;
        }

        .faq-list {
            margin-top: 2.5rem;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(27, 107, 147, 0.1);
            border-radius: var(--radius-card);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(27, 107, 147, 0.24);
            box-shadow: 0 4px 16px rgba(16, 42, 60, 0.06);
        }

        .faq-item details {
            width: 100%;
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.375rem 1.625rem;
            cursor: pointer;
            list-style: none;
            min-height: 56px;
            user-select: none;
            transition: var(--transition);
        }

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

        .faq-item summary:hover {
            background: rgba(27, 107, 147, 0.02);
        }

        .faq-q,
        .faq-a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.8125rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .faq-a {
            background: rgba(245, 166, 35, 0.14);
            color: #B05E00;
        }

        .faq-question-text {
            flex: 1;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-title);
            line-height: 1.5;
        }

        .faq-icon {
            margin-left: auto;
            color: var(--primary);
            font-size: 0.8125rem;
            transition: transform 0.2s ease;
            flex-shrink: 0;
        }

        .faq-item details[open] summary .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            display: flex;
            gap: 1rem;
            padding: 0 1.625rem 1.375rem 1.625rem;
            margin-top: -0.5rem;
        }

        .faq-answer p {
            font-size: 0.9375rem;
            color: var(--text-weak);
            line-height: 1.8;
            flex: 1;
            margin: 0;
            padding-top: 0.25rem;
        }

        /* ========== CTA 轻提示条 ========== */
        .light-cta-section {
            padding: 3.5rem 0;
            background: var(--bg-page);
        }

        .light-cta {
            background: var(--bg-card);
            border: 1px solid rgba(27, 107, 147, 0.14);
            border-left: 4px solid var(--primary);
            border-radius: var(--radius-card);
            padding: 2rem 2.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .light-cta:hover {
            box-shadow: var(--shadow-hover);
        }

        .light-cta-text h3 {
            font-size: 1.375rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 0.375rem;
        }

        .light-cta-text p {
            font-size: 0.9375rem;
            color: var(--text-weak);
            line-height: 1.6;
            max-width: 560px;
        }

        .light-cta .btn {
            flex-shrink: 0;
            min-width: 150px;
        }

        /* ========== 页脚 ========== */
        .footer {
            background: var(--bg-card);
            border-top: 2px solid var(--primary);
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            padding: 3.5rem 0 2.5rem;
        }

        .footer-brand h4 {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 1rem;
        }

        .footer-brand h4 svg {
            width: 34px;
            height: 34px;
        }

        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-weak);
            line-height: 1.75;
            margin-bottom: 1.25rem;
            max-width: 260px;
        }

        .social-links {
            display: flex;
            gap: 0.75rem;
        }

        .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9375rem;
            transition: var(--transition);
        }

        .social-links a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-col h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 1rem;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li {
            font-size: 0.875rem;
            color: var(--text-weak);
            line-height: 1.5;
        }

        .footer-col ul a {
            color: var(--text-weak);
            transition: var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--primary);
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }

        .footer-contact li i {
            color: var(--primary);
            margin-top: 0.25rem;
            font-size: 0.8125rem;
        }

        .footer-bottom {
            background: var(--deep);
            padding: 1.25rem 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .footer-bottom p {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .header-actions .search-form {
                width: 160px;
            }

            .main-nav {
                gap: 1.25rem;
            }

            .footer-main {
                grid-template-columns: 1.5fr 1fr 1fr;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                min-height: 64px;
            }

            .main-nav {
                display: none;
            }

            .header-actions .search-form,
            .header-actions .btn-accent {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .section {
                padding: 3.5rem 0;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .game-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .light-cta {
                padding: 1.5rem;
                flex-direction: column;
                align-items: flex-start;
                gap: 1.25rem;
            }

            .light-cta .btn {
                width: 100%;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
                padding: 2.5rem 0 1.5rem;
                gap: 1.5rem;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .category-hero {
                padding: 3rem 0;
            }

            .category-hero h1 {
                font-size: 1.75rem;
            }

            .category-hero p {
                font-size: 0.9375rem;
            }

            .section-header h2 {
                font-size: 1.5rem;
            }

            .section-header p {
                font-size: 0.875rem;
            }

            .feature-item {
                padding: 1.5rem;
            }

            .game-card-body {
                padding: 1.25rem;
            }

            .game-card h3 {
                font-size: 1.125rem;
            }

            .faq-item summary {
                padding: 1.125rem 1.25rem;
                gap: 0.75rem;
            }

            .faq-question-text {
                font-size: 0.9375rem;
            }

            .faq-answer {
                padding: 0 1.25rem 1.125rem;
            }

            .footer-main {
                grid-template-columns: 1fr;
            }
        }