/* roulang page: index */
:root {
    --primary: #2D5BFF;
    --primary-dark: #1E3FCC;
    --purple: #7B5CFF;
    --amber: #FFB547;
    --ink: #1F2640;
    --bg: #F6F8FC;
    --card: #FFFFFF;
    --border: #E9EDF5;
    --text-main: #1F2640;
    --text-sub: #5A6A85;
    --text-weak: #6B7A99;
    --radius-card: 24px;
    --radius-med: 16px;
    --radius-small: 8px;
    --shadow-card: 0 10px 30px rgba(45,91,255,0.08);
    --shadow-hover: 0 20px 40px rgba(123,92,255,0.18);
    --shadow-btn: 0 8px 16px rgba(45,91,255,0.25);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: var(--bg);
    color: var(--text-main);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input:focus {
    outline: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

.section-pad {
    padding: 80px 0;
}

@media (max-width: 768px) {
    .section-pad {
        padding: 56px 0;
    }
}

/* ===== Header/Nav ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: all 0.4s ease;
    padding: 14px 0;
}

.site-header.scrolled {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(31, 38, 64, 0.06);
    padding: 8px 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #2D5BFF, #7B5CFF);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(45, 91, 255, 0.3);
}

.logo-text {
    font-size: 19px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: 0.5px;
    line-height: 1.2;
    white-space: nowrap;
}

.logo-sub {
    font-size: 10px;
    color: #8A94A6;
    letter-spacing: 1px;
    font-weight: 400;
}

.site-header.scrolled .logo-text {
    color: var(--ink);
}

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

.main-nav a {
    font-size: 15px;
    font-weight: 500;
    color: #3A4560;
    position: relative;
    padding: 6px 2px;
    transition: color 0.3s;
    white-space: nowrap;
}

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

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

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 4px;
    border-radius: 999px;
    background: var(--amber);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #FFB547, #FFA726);
    color: #1F2640 !important;
    font-weight: 700;
    font-size: 14px !important;
    padding: 10px 20px !important;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(255, 181, 71, 0.3);
    transition: all 0.3s;
    white-space: nowrap;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 181, 71, 0.4);
    color: #1F2640 !important;
}

.nav-cta i {
    font-size: 14px;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
    padding: 8px;
}

.hamburger span {
    width: 26px;
    height: 3px;
    background: var(--ink);
    border-radius: 2px;
    transition: all 0.3s;
}

.hamburger.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #F6F8FC;
    z-index: 999;
    padding: 100px 32px 40px;
    overflow-y: auto;
}

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

.mobile-menu a {
    display: block;
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.mobile-menu a.active {
    color: var(--primary);
}

.mobile-menu .nav-cta-mobile {
    margin-top: 32px;
    width: 100%;
    text-align: center;
    background: linear-gradient(135deg, #FFB547, #FFA726);
    color: #1F2640;
    padding: 16px 24px;
    border-radius: 14px;
    font-weight: 700;
    font-size: 17px;
    display: block;
    border-bottom: none;
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .header-inner {
        padding: 0 20px;
    }
    .logo-text {
        font-size: 16px;
    }
}

/* ===== Hero ===== */
.hero {
    position: relative;
    background: linear-gradient(135deg, #1B3FCF 0%, #2D5BFF 40%, #7B5CFF 100%);
    padding: 140px 0 100px;
    overflow: hidden;
    min-height: 660px;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(255, 181, 71, 0.25) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(123, 92, 255, 0.4) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    padding: 6px 16px;
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: none;
}

.hero h1 {
    font-size: 38px;
    font-weight: 800;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero-sub {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 460px;
}

.hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.btn-amber {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #FFB547, #FF9F1C);
    color: #1F2640;
    font-weight: 700;
    font-size: 15px;
    padding: 14px 28px;
    border-radius: 12px;
    transition: all 0.3s;
    box-shadow: 0 8px 20px rgba(255, 181, 71, 0.3);
}

.btn-amber:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(255, 181, 71, 0.45);
    filter: brightness(1.05);
}

.btn-amber:active {
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(255, 181, 71, 0.3);
}

.btn-white-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.6);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    padding: 12px 26px;
    border-radius: 12px;
    transition: all 0.3s;
}

.btn-white-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.hero-badges {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-badge {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    padding: 5px 14px;
    font-size: 12px;
    color: #fff;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.hero-badge i {
    font-size: 11px;
    color: #FFB547;
}

.hero-card {
    background: #fff;
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
    overflow: hidden;
    position: relative;
    animation: heroFade 0.8s ease 0.2s both;
}

@keyframes heroFade {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-card-top {
    position: relative;
    height: 180px;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
}

.hero-card-top::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(31, 38, 64, 0.2), rgba(31, 38, 64, 0.75));
}

.hero-card-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 3;
    background: #FFB547;
    color: #1F2640;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    gap: 5px;
    box-shadow: 0 4px 12px rgba(255, 181, 71, 0.4);
}

.hero-card-top-content {
    position: absolute;
    bottom: 16px;
    left: 16px;
    right: 16px;
    z-index: 2;
    color: #fff;
}

.hero-card-top-content .sim-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
}

.hero-card-top-content .sim-desc {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

.hero-card-body {
    padding: 20px 24px 24px;
}

.sim-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sim-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: #F6F8FC;
    border-radius: 12px;
    border-left: 4px solid #2D5BFF;
}

.sim-row .sim-icon {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: #E8EDFF;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2D5BFF;
    font-size: 12px;
}

.sim-row .sim-label {
    font-size: 13px;
    color: var(--text-sub);
    flex: 1;
}

.sim-row .sim-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
}

.sim-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 600;
    color: #10B981;
}

.sim-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #10B981;
}

@media (max-width: 1024px) {
    .hero {
        padding: 120px 0 80px;
    }
    .hero h1 {
        font-size: 32px;
    }
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-card {
        max-width: 480px;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 110px 0 60px;
    }
    .hero h1 {
        font-size: 28px;
    }
    .hero-sub {
        font-size: 15px;
    }
    .hero-btns {
        flex-direction: column;
    }
    .hero-btns .btn-amber,
    .hero-btns .btn-white-outline {
        width: 100%;
        justify-content: center;
    }
}

/* ===== Section header ===== */
.sec-header {
    text-align: center;
    margin-bottom: 48px;
}

.sec-header .sec-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: #7B5CFF;
    background: rgba(123, 92, 255, 0.08);
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.sec-header h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--ink);
    line-height: 1.3;
    margin-bottom: 12px;
}

.sec-header p {
    font-size: 16px;
    color: var(--text-sub);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .sec-header h2 {
        font-size: 28px;
    }
    .sec-header p {
        font-size: 15px;
    }
}

/* ===== News / CMS section ===== */
.news-section {
    background: #fff;
    padding: 80px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}

.news-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    box-shadow: 0 20px 40px rgba(45, 91, 255, 0.1);
    transform: translateY(-4px);
}

.news-card-img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

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

.news-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: #7B5CFF;
    background: rgba(123, 92, 255, 0.1);
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
    align-self: flex-start;
}

.news-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 45px;
}

.news-card .news-summary {
    font-size: 13px;
    color: var(--text-weak);
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.news-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: #A0AEC0;
    border-top: 1px solid #F0F2F7;
    padding-top: 12px;
}

.news-card-footer a {
    color: var(--primary);
    font-weight: 600;
    font-size: 13px;
    transition: color 0.2s;
}

.news-card-footer a:hover {
    color: var(--purple);
}

.news-empty {
    grid-column: 1 / -1;
    border: 2px dashed #D8DEE8;
    border-radius: 16px;
    padding: 60px 20px;
    text-align: center;
    color: var(--text-weak);
    font-size: 15px;
    background: #FAFBFD;
}

/* ===== Services ===== */
.services-section {
    background: var(--bg);
    padding: 80px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

.service-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 32px 28px;
    transition: all 0.35s;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2D5BFF, #7B5CFF);
    opacity: 0;
    transition: opacity 0.3s;
}

.service-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-6px);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, #E8EDFF, #F1EDFF);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2D5BFF;
    font-size: 20px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.65;
}

/* ===== Stats ===== */
.stats-section {
    background: #1F2640;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(45, 91, 255, 0.3), transparent);
    border-radius: 50%;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.stat-item {
    position: relative;
    padding: 20px 10px;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 60px;
    background: rgba(255, 255, 255, 0.12);
}

.stat-num {
    font-family: "DIN Alternate", "Bebas Neue", sans-serif;
    font-size: 46px;
    font-weight: 700;
    color: #FFB547;
    line-height: 1;
    margin-bottom: 10px;
    display: block;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .stat-item:nth-child(2)::after {
        display: none;
    }
}

/* ===== Cases ===== */
.cases-section {
    background: #fff;
    padding: 80px 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.case-card-img {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    min-height: 400px;
    background-image: url('/assets/images/coverpic/cover-2.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.case-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(31, 38, 64, 0.8), transparent 60%);
}

.case-card-img-content {
    position: relative;
    z-index: 2;
    padding: 32px;
    color: #fff;
}

.case-card-img-content h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.case-card-img-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.case-card-text,
.case-card-data {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-card);
    transition: all 0.3s;
}

.case-card-text:hover,
.case-card-data:hover {
    box-shadow: var(--shadow-hover);
}

.case-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: #7B5CFF;
    background: rgba(123, 92, 255, 0.1);
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 16px;
    align-self: flex-start;
}

.case-card-text h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--ink);
}

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

.case-metrics {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid #F0F2F7;
    display: flex;
    gap: 24px;
}

.case-metric {
    flex: 1;
}

.case-metric .metric-num {
    font-family: "DIN Alternate", sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: #2D5BFF;
    display: block;
}

.case-metric .metric-label {
    font-size: 12px;
    color: var(--text-weak);
}

.case-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #2D5BFF;
    font-size: 14px;
    font-weight: 600;
    margin-top: 16px;
    transition: gap 0.3s;
}

.case-link:hover {
    gap: 8px;
}

.case-data-item {
    text-align: center;
    padding: 18px 0;
    border-bottom: 1px solid #F0F2F7;
}

.case-data-item:last-child {
    border-bottom: none;
}

.case-data-item .data-big {
    font-family: "DIN Alternate", sans-serif;
    font-size: 40px;
    font-weight: 700;
    color: #2D5BFF;
    line-height: 1;
}

.case-data-item .data-label {
    font-size: 13px;
    color: var(--text-weak);
    margin-top: 6px;
}

.case-data-item .data-note {
    font-size: 12px;
    color: #A0AEC0;
    margin-top: 4px;
}

@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: 1fr;
    }
    .case-card-img {
        min-height: 300px;
    }
}

/* ===== Solutions ===== */
.solutions-section {
    background: linear-gradient(180deg, #F6F8FC 0%, #fff 100%);
    padding: 80px 0;
}

.solutions-wrap {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 56px;
    align-items: center;
}

.solutions-left .sol-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: #7B5CFF;
    background: rgba(123, 92, 255, 0.08);
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 16px;
}

.solutions-left h2 {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--ink);
}

.solutions-left p {
    font-size: 15px;
    color: var(--text-weak);
    line-height: 1.7;
    margin-bottom: 24px;
}

.btn-blue-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 2px solid #2D5BFF;
    color: #2D5BFF;
    font-weight: 600;
    font-size: 14px;
    padding: 12px 24px;
    border-radius: 12px;
    transition: all 0.3s;
}

.btn-blue-outline:hover {
    background: #2D5BFF;
    color: #fff;
    box-shadow: 0 8px 20px rgba(45, 91, 255, 0.25);
}

.solutions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.sol-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s;
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

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

.sol-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #F1EDFF;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7B5CFF;
    font-size: 17px;
    flex-shrink: 0;
}

.sol-card h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 6px;
}

.sol-card p {
    font-size: 13px;
    color: var(--text-weak);
    line-height: 1.6;
}

@media (max-width: 900px) {
    .solutions-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 640px) {
    .solutions-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== FAQ ===== */
.faq-section {
    background: #fff;
    padding: 80px 0;
}

.faq-wrap {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.faq-item:hover {
    border-color: #D0D9E8;
}

.faq-item.open {
    border-color: transparent;
    box-shadow: var(--shadow-card);
}

.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    user-select: none;
}

.faq-q .faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid #FFB547;
    color: #FFB547;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
    transition: all 0.3s;
}

.faq-item.open .faq-icon {
    background: #FFB547;
    color: #1F2640;
    transform: rotate(180deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-a-inner {
    padding: 0 24px 20px;
    border-top: 2px solid;
    border-image: linear-gradient(to right, #2D5BFF, #7B5CFF) 1;
    margin: 0 24px;
    padding: 16px 0 20px;
}

.faq-a p {
    font-size: 15px;
    line-height: 1.75;
    color: #4A5568;
}

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, #1E3FCC, #2D5BFF 50%, #7B5CFF);
    padding: 72px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 181, 71, 0.2), transparent 60%);
    border-radius: 50%;
}

.cta-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    z-index: 2;
    flex-wrap: wrap;
}

.cta-left h2 {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 10px;
    line-height: 1.3;
}

.cta-left p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

.cta-btns {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.cta-btns .btn-amber {
    background: linear-gradient(135deg, #FFB547, #FF9F1C);
    box-shadow: 0 8px 24px rgba(255, 181, 71, 0.35);
}

.btn-white-solid {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: #2D5BFF;
    font-weight: 700;
    font-size: 15px;
    padding: 14px 28px;
    border-radius: 12px;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-white-solid:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
    .cta-wrap {
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }
    .cta-left h2 {
        font-size: 26px;
    }
    .cta-btns {
        justify-content: center;
        width: 100%;
    }
    .cta-btns a {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }
}

/* ===== Footer ===== */
.site-footer {
    background: #1F2640;
    padding: 64px 0 24px;
    color: #A8B3C7;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

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

.footer-brand .footer-logo .logo-icon {
    background: linear-gradient(135deg, #2D5BFF, #7B5CFF);
    border-radius: 10px;
}

.footer-brand .footer-logo span {
    font-size: 18px;
    font-weight: 800;
    color: #fff;
    white-space: nowrap;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    color: #8A94A6;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col ul a {
    font-size: 14px;
    color: #A8B3C7;
    transition: all 0.2s;
}

.footer-col ul a:hover {
    color: #fff;
    text-decoration: underline;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 14px;
    font-size: 14px;
    color: #A8B3C7;
}

.footer-contact i {
    color: #FFB547;
    width: 20px;
    margin-right: 6px;
}

.footer-contact .footer-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 2px solid #FFB547;
    color: #FFB547;
    font-weight: 600;
    font-size: 14px;
    padding: 12px 24px;
    border-radius: 12px;
    margin-top: 8px;
    transition: all 0.3s;
    max-width: 200px;
}

.footer-contact .footer-cta-btn:hover {
    background: #FFB547;
    color: #1F2640;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #6B7A99;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
}

/* ===== Animations ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.6s ease both;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* roulang page: article */
:root {
    --brand: #2D5BFF;
    --brand-light: #5B7FFF;
    --accent: #7B5CFF;
    --gold: #FFB547;
    --ink: #1F2640;
    --bg: #F6F8FC;
    --card: #FFFFFF;
    --border: #E9EDF5;
    --text: #2D3748;
    --text-light: #5A6A85;
    --text-muted: #8A94A6;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --shadow-card: 0 10px 30px rgba(45, 91, 255, 0.08);
    --shadow-hover: 0 20px 40px rgba(123, 92, 255, 0.18);
    --font-sans: "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-num: "DIN Alternate", "Bebas Neue", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color .25s ease;
}

button {
    font-family: inherit;
    cursor: pointer;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(246, 248, 252, .95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background .3s, box-shadow .3s, border-color .3s;
}

.site-header.scrolled {
    background: #fff;
    box-shadow: 0 4px 20px rgba(31, 38, 64, .06);
    border-bottom-color: var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    color: var(--ink);
    white-space: nowrap;
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--brand), var(--accent));
    color: #fff;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: .5px;
    flex-shrink: 0;
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--ink);
}

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

.main-nav a {
    font-size: 16px;
    color: var(--ink);
    font-weight: 500;
    position: relative;
    padding: 8px 0;
    transition: color .2s;
}

.main-nav a:hover {
    color: var(--brand);
}

.main-nav a.active {
    color: var(--brand);
    font-weight: 600;
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -2px;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--gold);
}

.main-nav .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--gold);
    color: var(--ink);
    padding: 10px 22px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    box-shadow: 0 6px 16px rgba(255, 181, 71, .35);
    transition: all .25s;
    border: none;
}

.main-nav .nav-cta:hover {
    background: #f0a532;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 181, 71, .45);
    color: var(--ink);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 8px;
    z-index: 110;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: all .3s;
}

.mobile-menu-btn.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn.open span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu-panel {
    display: none;
    background: var(--bg);
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(31, 38, 64, .08);
}

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

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-nav a {
    padding: 12px 16px;
    font-size: 16px;
    font-weight: 500;
    color: var(--ink);
    border-radius: 10px;
    transition: background .2s, color .2s;
}

.mobile-nav a:hover,
.mobile-nav a.active {
    background: #fff;
    color: var(--brand);
}

.mobile-nav .mobile-nav-cta {
    margin-top: 8px;
    background: var(--gold);
    color: var(--ink);
    text-align: center;
    font-weight: 600;
    border-radius: 12px;
    padding: 14px 16px;
}

/* ===== Article Hero ===== */
.article-hero {
    background-image: linear-gradient(135deg, rgba(45, 91, 255, .93), rgba(123, 92, 255, .88)), url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    padding: 56px 0 48px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.article-hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -80px;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(255, 181, 71, .28), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, .8);
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.breadcrumbs a {
    color: rgba(255, 255, 255, .92);
    transition: color .2s;
}

.breadcrumbs a:hover {
    color: #fff;
    text-decoration: underline;
}

.breadcrumbs .sep {
    color: rgba(255, 255, 255, .5);
}

.breadcrumbs .current {
    color: rgba(255, 255, 255, .78);
}

.article-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.35;
    max-width: 820px;
    margin: 0 0 20px;
    position: relative;
    z-index: 1;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, .88);
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.article-meta i {
    margin-right: 6px;
}

.article-meta .meta-category {
    background: rgba(255, 255, 255, .18);
    padding: 4px 12px;
    border-radius: 999px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

/* ===== Article Main ===== */
.article-main {
    padding: 48px 0 64px;
}

.article-content-wrap {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    padding: 48px 48px 40px;
    max-width: 860px;
    margin: 0 auto 40px;
}

.article-content {
    max-width: 760px;
    margin: 0 auto;
}

.article-content p {
    font-size: 17px;
    line-height: 1.8;
    margin-bottom: 1.25em;
    color: var(--text);
}

.article-content > p:first-child {
    font-size: 19px;
    font-weight: 600;
    color: var(--ink);
}

.article-content h2 {
    font-size: 26px;
    font-weight: 800;
    margin: 40px 0 16px;
    color: var(--ink);
    line-height: 1.4;
}

.article-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin: 32px 0 14px;
    color: var(--ink);
    line-height: 1.4;
}

.article-content h4 {
    font-size: 18px;
    font-weight: 700;
    margin: 24px 0 12px;
    color: var(--ink);
}

.article-content img {
    width: 100%;
    border-radius: 16px;
    margin: 24px 0;
}

.article-content figcaption {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    margin-top: -12px;
    margin-bottom: 24px;
}

.article-content blockquote {
    border-left: 4px solid var(--brand);
    background: #F0F4FF;
    padding: 20px 24px;
    border-radius: 0 12px 12px 0;
    margin: 24px 0;
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.7;
}

.article-content ul,
.article-content ol {
    margin: 16px 0 20px;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 10px;
    line-height: 1.75;
}

.article-content a {
    color: var(--brand);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-content a:hover {
    color: var(--accent);
}

/* ===== CTA ===== */
.article-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    background: linear-gradient(135deg, #F0F4FF, #EEF0FF);
    border: 1px solid #E4EBFF;
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    max-width: 860px;
    margin: 0 auto 48px;
    box-shadow: var(--shadow-card);
}

.article-cta h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 8px;
}

.article-cta p {
    font-size: 16px;
    color: var(--text-light);
}

.btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--gold);
    color: var(--ink);
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 8px 16px rgba(255, 181, 71, .35);
    transition: all .25s;
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

.btn-gold:hover {
    background: #f0a532;
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(255, 181, 71, .45);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--brand);
    color: #fff;
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 8px 16px rgba(45, 91, 255, .25);
    transition: all .25s;
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary:hover {
    background: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(123, 92, 255, .35);
}

/* ===== Related ===== */
.related-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--ink);
    margin-bottom: 28px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 48px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--brand), var(--accent));
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.related-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: transform .3s, box-shadow .3s;
    display: block;
}

.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.related-img {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s;
}

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

.related-body {
    padding: 20px;
}

.related-tag {
    display: inline-block;
    background: #F1EEFF;
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 12px;
}

.related-body h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
}

.related-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
}

.related-meta a {
    color: var(--brand);
    font-weight: 500;
}

.back-link {
    text-align: center;
    margin: 40px 0 0;
    padding: 0 24px;
}

.back-link a {
    color: var(--text-muted);
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color .2s;
}

.back-link a:hover {
    color: var(--brand);
}

/* ===== Not Found ===== */
.article-notfound {
    text-align: center;
    padding: 80px 24px;
    max-width: 600px;
    margin: 0 auto;
}

.article-notfound i {
    font-size: 48px;
    color: var(--gold);
    margin-bottom: 16px;
}

.article-notfound h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--ink);
}

.article-notfound p {
    color: var(--text-light);
    margin-bottom: 24px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--ink);
    color: #A8B3C7;
    padding: 60px 0 0;
    margin-top: 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    background: linear-gradient(135deg, var(--brand), var(--accent));
    border-radius: 10px;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 800;
    color: #fff;
}

.footer-desc {
    font-size: 15px;
    line-height: 1.7;
    color: #A8B3C7;
    max-width: 360px;
}

.footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul a {
    color: #A8B3C7;
    font-size: 15px;
    transition: color .2s;
}

.footer-col ul a:hover {
    color: #fff;
    text-decoration: underline;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 15px;
    color: #A8B3C7;
}

.footer-contact i {
    margin-right: 8px;
    color: var(--gold);
}

.footer-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 2px solid var(--gold);
    color: var(--gold);
    padding: 10px 20px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    margin-top: 8px;
    transition: all .3s;
    width: fit-content;
}

.footer-cta-btn:hover {
    background: var(--gold);
    color: var(--ink);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
    color: #7C879E;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }

    .main-nav {
        gap: 20px;
    }

    .article-title {
        font-size: 34px;
    }

    .related-grid {
        gap: 16px;
    }
}

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

    .main-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .article-hero {
        padding: 40px 0 36px;
    }

    .article-title {
        font-size: 30px;
        line-height: 1.4;
    }

    .article-meta {
        gap: 12px;
        font-size: 13px;
    }

    .article-content-wrap {
        padding: 28px 24px;
        border-radius: 18px;
    }

    .article-content p {
        font-size: 16px;
    }

    .article-content > p:first-child {
        font-size: 17px;
    }

    .article-content h3 {
        font-size: 22px;
    }

    .article-cta {
        flex-direction: column;
        align-items: flex-start;
        padding: 28px 24px;
    }

    .article-cta .btn-gold {
        width: 100%;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-brand,
    .footer-col {
        text-align: left;
    }

    .footer-bottom {
        text-align: center;
    }
}

@media (max-width: 520px) {
    .article-hero {
        padding: 32px 0;
    }

    .article-title {
        font-size: 26px;
    }

    .article-meta {
        gap: 8px;
        font-size: 12px;
        flex-direction: column;
        align-items: flex-start;
    }

    .article-content-wrap {
        padding: 20px 16px;
    }

    .article-content h3 {
        font-size: 20px;
    }

    .article-cta {
        padding: 24px 18px;
    }

    .related-body {
        padding: 16px;
    }

    .footer-grid {
        gap: 24px;
    }

    .footer-bottom {
        font-size: 12px;
    }

    .logo-text {
        font-size: 18px;
    }

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

/* roulang page: category1 */
:root {
            --primary: #2D5BFF;
            --primary-dark: #1E3FBF;
            --secondary: #7B5CFF;
            --accent: #FFB547;
            --bg-main: #F6F8FC;
            --bg-dark: #1F2640;
            --text-main: #1F2640;
            --text-sub: #5A6A85;
            --text-weak: #6B7A99;
            --border: #E9EDF5;
            --card-bg: #FFFFFF;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-card: 0 12px 32px rgba(45, 91, 255, 0.08);
            --shadow-hover: 0 20px 40px rgba(123, 92, 255, 0.18);
            --font-main: "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-number: "DIN Alternate", "Bebas Neue", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: transparent;
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-header.scrolled {
            background: #fff;
            box-shadow: 0 4px 30px rgba(31, 38, 64, 0.06);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -0.5px;
            box-shadow: 0 6px 18px rgba(45, 91, 255, 0.28);
        }

        .logo-text {
            font-weight: 800;
            font-size: 20px;
            color: var(--text-main);
            line-height: 1.2;
        }

        .logo-domain {
            font-size: 10px;
            color: var(--text-weak);
            letter-spacing: 0.5px;
            margin-top: 2px;
            display: block;
            line-height: 1;
        }

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

        .main-nav>a:not(.nav-cta) {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 6px 2px;
            line-height: 1.4;
        }

        .main-nav>a:not(.nav-cta):hover {
            color: var(--primary);
            border-bottom: 2px dashed rgba(45, 91, 255, 0.4);
        }

        .main-nav>a:not(.nav-cta).active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav>a:not(.nav-cta).active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--bg-dark) !important;
            font-size: 14px;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: 12px;
            box-shadow: 0 6px 16px rgba(255, 181, 71, 0.28);
            transition: background .3s ease, transform .3s ease, box-shadow .3s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: #FFC266;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 181, 71, 0.36);
            border-bottom: none;
        }

        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            border-radius: 8px;
            z-index: 120;
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 3px;
            transition: transform .3s ease, opacity .3s ease;
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 12px;
            box-shadow: 0 8px 16px rgba(45, 91, 255, 0.25);
            transition: background .3s ease, transform .3s ease, box-shadow .3s ease;
            border: none;
        }

        .btn-primary:hover {
            background: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(123, 92, 255, 0.32);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 6px 14px rgba(45, 91, 255, 0.2);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            font-size: 15px;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: 12px;
            transition: background .3s ease, color .3s ease, transform .3s ease;
        }

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

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: var(--bg-dark) !important;
            font-size: 15px;
            font-weight: 700;
            padding: 13px 28px;
            border-radius: 12px;
            box-shadow: 0 8px 20px rgba(255, 181, 71, 0.3);
            transition: background .3s ease, transform .3s ease, box-shadow .3s ease;
        }

        .btn-accent:hover {
            background: #FFC266;
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(255, 181, 71, 0.4);
        }

        .btn-white-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 12px;
            transition: background .3s ease, color .3s ease, transform .3s ease, box-shadow .3s ease;
            box-shadow: 0 6px 18px rgba(31, 38, 64, 0.08);
        }

        .btn-white-outline:hover {
            background: #F0F3FF;
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(31, 38, 64, 0.12);
        }

        /* ===== Category Banner ===== */
        .cat-banner {
            position: relative;
            padding: 150px 0 64px;
            background: linear-gradient(135deg, #F6F8FC 0%, #EEF2FF 45%, #F3EEFF 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .cat-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle, rgba(123, 92, 255, 0.09) 1px, transparent 1px);
            background-size: 26px 26px;
            opacity: 0.5;
            pointer-events: none;
        }

        .cat-banner::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(45, 91, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 20px;
            background: rgba(255, 255, 255, 0.7);
            padding: 6px 16px;
            border-radius: 999px;
            border: 1px solid var(--border);
        }

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

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .breadcrumb .current {
            color: var(--text-sub);
            font-weight: 600;
        }

        .cat-banner h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cat-banner .cat-subtitle {
            font-size: 18px;
            color: var(--text-sub);
            max-width: 620px;
            margin: 0 auto;
            line-height: 1.8;
        }

        /* ===== Stats ===== */
        .stats-section {
            padding: 56px 0 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease;
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity .3s ease;
        }

        .stat-card:hover::before {
            opacity: 1;
        }

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

        .stat-num {
            font-family: var(--font-number);
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            display: block;
        }

        .stat-unit {
            font-size: 22px;
            margin-left: 2px;
            font-weight: 600;
            color: var(--text-sub);
        }

        .stat-label {
            display: block;
            margin-top: 8px;
            font-size: 15px;
            color: var(--text-sub);
            font-weight: 500;
        }

        /* ===== Content Section ===== */
        .content-section {
            padding: 56px 0 80px;
        }

        .content-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        .main-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-row {
            display: flex;
            gap: 20px;
            padding: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s ease, transform .3s ease;
            align-items: stretch;
        }

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

        .news-thumb {
            width: 176px;
            height: 124px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: #E9EDF5;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .news-row:hover .news-thumb img {
            transform: scale(1.05);
        }

        .news-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 6px;
            flex-wrap: wrap;
        }

        .news-cat {
            display: inline-block;
            background: #F0ECFF;
            color: var(--secondary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 999px;
            line-height: 1.6;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-weak);
        }

        .news-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .news-body h3 a {
            color: inherit;
        }

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

        .news-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .news-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-more:hover {
            color: var(--secondary);
            gap: 8px;
        }

        .load-more-wrap {
            text-align: center;
            margin-top: 12px;
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            border: 1.5px solid #C5D3F0;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            padding: 10px 32px;
            border-radius: 12px;
            transition: background .3s ease, color .3s ease, border-color .3s ease, box-shadow .3s ease;
        }

        .load-more-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 10px 24px rgba(45, 91, 255, 0.2);
        }

        /* ===== Sidebar ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }

        .side-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }

        .side-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid #F0F3FA;
            position: relative;
        }

        .side-card h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 32px;
            height: 2px;
            background: var(--primary);
        }

        .side-entry {
            background: linear-gradient(135deg, #1F2640 0%, #2D5BFF 100%);
            border: none;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .side-entry::before {
            content: '';
            position: absolute;
            right: -40px;
            top: -40px;
            width: 120px;
            height: 120px;
            background: radial-gradient(circle, rgba(255, 181, 71, 0.25) 0%, transparent 70%);
            border-radius: 50%;
        }

        .side-entry-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.14);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .side-entry h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            border-bottom: none;
            padding-bottom: 0;
            margin-bottom: 8px;
        }

        .side-entry h3::after {
            display: none;
        }

        .side-entry p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .side-entry .btn-accent {
            width: 100%;
            padding: 12px 16px;
            font-size: 14px;
        }

        .side-entry-note {
            display: block;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 10px;
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-list a {
            display: inline-block;
            background: #F4F6FB;
            border: 1px solid var(--border);
            color: var(--text-sub);
            font-size: 13px;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: 999px;
            transition: background .25s ease, color .25s ease, border-color .25s ease;
        }

        .tag-list a:hover {
            background: #EEF0FF;
            border-color: var(--primary);
            color: var(--primary);
        }

        .side-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 10px;
            color: var(--text-sub);
            font-size: 15px;
            font-weight: 500;
            transition: background .25s ease, color .25s ease, padding-left .25s ease;
        }

        .side-links a i {
            color: var(--primary);
            font-size: 13px;
            width: 18px;
            text-align: center;
        }

        .side-links a:hover {
            background: #F0F3FF;
            color: var(--primary);
            padding-left: 18px;
        }

        /* ===== Subscribe ===== */
        .subscribe-section {
            padding: 0 0 80px;
        }

        .subscribe-card {
            background: linear-gradient(135deg, #1F2640 0%, #2D5BFF 60%, #7B5CFF 100%);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            overflow: hidden;
            color: #fff;
            box-shadow: 0 24px 60px rgba(45, 91, 255, 0.24);
        }

        .subscribe-card::before {
            content: '';
            position: absolute;
            right: -60px;
            bottom: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 181, 71, 0.2) 0%, transparent 70%);
            border-radius: 50%;
        }

        .subscribe-text h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .subscribe-text p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 460px;
        }

        .subscribe-actions {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
            position: relative;
            z-index: 2;
        }

        .subscribe-actions .btn-accent {
            white-space: nowrap;
        }

        .subscribe-actions .btn-white-outline {
            white-space: nowrap;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 0 0 80px;
        }

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-head .section-tag {
            display: inline-block;
            background: #F0ECFF;
            color: var(--secondary);
            font-size: 13px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-head h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-head p {
            font-size: 17px;
            color: var(--text-sub);
            max-width: 540px;
            margin: 0 auto;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow .3s ease;
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 22px 28px;
            text-align: left;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            background: #fff;
            transition: background .25s ease;
        }

        .faq-question:hover {
            background: #F8FAFF;
        }

        .faq-icon {
            font-size: 24px;
            font-weight: 400;
            color: var(--accent);
            flex-shrink: 0;
            line-height: 1;
            transition: transform .3s ease;
            font-family: var(--font-number);
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            border-top: 0 solid var(--primary);
        }

        .faq-item.active .faq-answer {
            max-height: 260px;
            border-top-width: 2px;
            border-image: linear-gradient(90deg, var(--primary), var(--secondary)) 1;
        }

        .faq-answer p {
            padding: 20px 28px 24px;
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 0 0 80px;
        }

        .cta-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            overflow: hidden;
            color: #fff;
            box-shadow: 0 24px 60px rgba(45, 91, 255, 0.2);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            left: -60px;
            bottom: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-text h2 {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .cta-text p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 480px;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
            position: relative;
            z-index: 2;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: #A8B3C7;
            padding: 64px 0 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            width: 38px;
            height: 38px;
            font-size: 16px;
        }

        .footer-brand .footer-logo span:last-child {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            color: #8E99B3;
            line-height: 1.8;
            max-width: 340px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            color: #A8B3C7;
            transition: color .25s ease;
        }

        .footer-col ul a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact span {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #A8B3C7;
        }

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

        .footer-cta-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 2px solid var(--accent);
            color: var(--accent) !important;
            font-weight: 600;
            padding: 10px 20px;
            border-radius: 10px;
            margin-top: 8px;
            transition: background .3s ease, color .3s ease, transform .3s ease;
        }

        .footer-cta-btn:hover {
            background: var(--accent);
            color: var(--bg-dark) !important;
            transform: translateY(-2px);
            text-decoration: none !important;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #7A859E;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .content-layout {
                grid-template-columns: 1fr;
            }

            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }

            .main-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 300px;
                height: 100vh;
                background: var(--bg-main);
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 100px 28px 32px;
                transition: right .35s ease;
                box-shadow: -10px 0 40px rgba(31, 38, 64, 0.12);
                z-index: 110;
                overflow-y: auto;
            }

            .main-nav.open {
                right: 0;
            }

            .main-nav>a:not(.nav-cta) {
                width: 100%;
                font-size: 17px;
                padding: 12px 2px;
                border-bottom: 1px solid #EEF1F8;
            }

            .main-nav>a:not(.nav-cta).active::after {
                display: none;
            }

            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-top: 20px;
                padding: 14px 20px;
            }

            .mobile-toggle {
                display: flex;
            }

            .subscribe-card {
                flex-direction: column;
                text-align: center;
                padding: 40px 32px;
            }

            .subscribe-actions {
                flex-direction: column;
                width: 100%;
                max-width: 320px;
            }

            .subscribe-actions .btn-accent,
            .subscribe-actions .btn-white-outline {
                width: 100%;
            }

            .cta-card {
                flex-direction: column;
                text-align: center;
                padding: 44px 36px;
            }

            .cta-actions {
                flex-direction: column;
                width: 100%;
                max-width: 300px;
            }

            .cta-actions .btn-accent,
            .cta-actions .btn-white-outline {
                width: 100%;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            .cat-banner {
                padding: 130px 0 48px;
            }

            .cat-banner h1 {
                font-size: 32px;
            }

            .cat-banner .cat-subtitle {
                font-size: 16px;
            }

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

            .stats-section {
                padding-top: 40px;
            }

            .news-row {
                flex-direction: column;
                padding: 16px;
            }

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

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

            .section-head h2 {
                font-size: 30px;
            }

            .scroll-top-btn {
                display: none;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

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

        @media (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }

            .logo-domain {
                display: none;
            }

            .header-inner {
                height: 68px;
            }

            .cat-banner h1 {
                font-size: 28px;
            }

            .news-thumb {
                height: 160px;
            }

            .subscribe-card {
                padding: 32px 22px;
            }

            .subscribe-text h2 {
                font-size: 26px;
            }

            .cta-card {
                padding: 32px 22px;
            }

            .cta-text h2 {
                font-size: 24px;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 16px;
            }

            .faq-answer p {
                padding: 16px 20px 20px;
                font-size: 15px;
            }
        }

        /* ===== Focus visibility ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(45, 91, 255, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }

        /* ===== Scroll Top ===== */
        .scroll-top-btn {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 46px;
            height: 46px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 24px rgba(45, 91, 255, 0.28);
            z-index: 90;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: opacity .3s ease, transform .3s ease, visibility .3s ease, background .3s ease;
        }

        .scroll-top-btn.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .scroll-top-btn:hover {
            background: var(--secondary);
        }

/* roulang page: category2 */
:root {
            --primary: #2D5BFF;
            --primary-dark: #1A3FCC;
            --secondary: #7B5CFF;
            --accent: #FFB547;
            --bg-main: #F6F8FC;
            --bg-dark: #1F2640;
            --card-bg: #FFFFFF;
            --border-light: #E9EDF5;
            --text-primary: #1F2640;
            --text-secondary: #5A6A85;
            --text-muted: #6B7A99;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-card: 0 10px 30px rgba(45, 91, 255, 0.08);
            --shadow-hover: 0 20px 40px rgba(123, 92, 255, 0.18);
            --transition: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            border-bottom: 1px solid var(--border-light);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(31, 38, 64, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .logo-sub {
            display: block;
            font-size: 10px;
            font-weight: 400;
            color: var(--text-muted);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }

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

        .main-nav a {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            position: relative;
            padding: 6px 2px;
        }

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

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .main-nav a.nav-cta {
            background: var(--accent);
            color: var(--text-primary);
            font-weight: 700;
            padding: 10px 20px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 12px rgba(255, 181, 71, 0.3);
            transition: all 0.3s ease;
        }

        .main-nav a.nav-cta:hover {
            background: #e6a23c;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(255, 181, 71, 0.4);
            color: var(--text-primary);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: transparent;
            cursor: pointer;
            padding: 8px;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--bg-main);
            border-bottom: 1px solid var(--border-light);
            padding: 20px 24px 28px;
            z-index: 99;
            box-shadow: 0 10px 30px rgba(31, 38, 64, 0.08);
        }

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

        .mobile-menu a {
            display: block;
            padding: 14px 8px;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-primary);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

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

        .mobile-menu a.nav-cta {
            background: var(--accent);
            color: var(--text-primary);
            font-weight: 700;
            text-align: center;
            border-radius: 12px;
            margin-top: 16px;
            padding: 14px;
            border-bottom: none;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, #2D5BFF 0%, #7B5CFF 100%);
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 181, 71, 0.25) 0%, transparent 60%);
            border-radius: 50%;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 65%);
            border-radius: 50%;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
        }

        .banner-content h1 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .banner-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .banner-tags {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .banner-tags span {
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 9999px;
            backdrop-filter: blur(4px);
        }

        /* ===== Stats Strip ===== */
        .stats-strip {
            margin-top: -40px;
            position: relative;
            z-index: 5;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 32px 40px;
            border: 1px solid var(--border-light);
        }

        .stat-item {
            text-align: center;
            padding: 8px 16px;
            position: relative;
        }

        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 20%;
            height: 60%;
            width: 1px;
            background: var(--border-light);
        }

        .stat-num {
            font-family: "DIN Alternate", "Bebas Neue", sans-serif;
            font-size: 44px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

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

        .content-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
        }

        .content-main {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .news-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: flex;
            gap: 20px;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .news-card-img {
            flex-shrink: 0;
            width: 220px;
            height: 150px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-main);
        }

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

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

        .news-card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }

        .news-tag {
            display: inline-flex;
            align-items: center;
            background: #F0EBFF;
            color: var(--secondary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 9999px;
            align-self: flex-start;
            margin-bottom: 10px;
        }

        .news-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .news-card-meta a {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-card-meta a:hover {
            color: var(--secondary);
        }

        .load-more-wrap {
            text-align: center;
            margin-top: 40px;
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--primary);
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            padding: 12px 32px;
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .load-more-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(45, 91, 255, 0.3);
        }

        /* ===== Sidebar ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .entry-guide {
            background: var(--bg-dark);
            border: none;
            text-align: center;
            color: #fff;
        }

        .entry-guide h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .entry-guide p {
            font-size: 14px;
            color: #A8B3C7;
            margin-bottom: 20px;
        }

        .entry-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--text-primary);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 12px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(255, 181, 71, 0.25);
            width: 100%;
            justify-content: center;
        }

        .entry-btn:hover {
            background: #e6a23c;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 181, 71, 0.35);
            color: var(--text-primary);
        }

        .entry-note {
            font-size: 12px;
            color: #8A94A8;
            margin-top: 14px;
            display: block;
        }

        .sidebar-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 12px;
        }

        .sidebar-card h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-item {
            background: var(--bg-main);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 9999px;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }

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

        .related-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .related-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 8px;
            border-radius: 10px;
            transition: all 0.3s ease;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .related-links a i {
            color: var(--primary);
            font-size: 12px;
            width: 18px;
        }

        .related-links a:hover {
            background: var(--bg-main);
            color: var(--primary);
            padding-left: 14px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
            background: #fff;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }

        .faq-grid {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-main);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }

        .faq-item.open {
            box-shadow: var(--shadow-card);
            background: #fff;
            border: 1px solid var(--border-light);
        }

        .faq-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            transition: background 0.3s ease;
        }

        .faq-header:hover {
            background: rgba(45, 91, 255, 0.04);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--accent);
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 700;
            transition: transform 0.3s ease;
        }

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

        .faq-body {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.4s ease;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-body {
            padding: 0 24px 20px;
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #2D5BFF 0%, #7B5CFF 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 181, 71, 0.2) 0%, transparent 60%);
            border-radius: 50%;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-text {
            flex: 1;
            min-width: 280px;
        }

        .cta-text h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-text p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 12px;
            transition: all 0.3s ease;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .cta-btn-primary:hover {
            background: #e6a23c;
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
        }

        .cta-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 12px;
            border: 2px solid rgba(255, 255, 255, 0.6);
            transition: all 0.3s ease;
        }

        .cta-btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: #A8B3C7;
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #8A94A8;
            max-width: 380px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: #8A94A8;
            transition: all 0.3s ease;
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 14px;
        }

        .footer-contact span {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 16px;
        }

        .footer-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            padding: 10px 20px;
            border-radius: 12px;
            margin-top: 8px;
            transition: all 0.3s ease;
            align-self: flex-start;
        }

        .footer-cta-btn:hover {
            background: var(--accent);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            margin-top: 40px;
            text-align: center;
            font-size: 13px;
            color: #6B7A99;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .header-inner {
                height: 64px;
            }

            .main-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .page-banner {
                padding: 120px 0 50px;
            }

            .banner-content h1 {
                font-size: 32px;
            }

            .content-layout {
                grid-template-columns: 1fr;
            }

            .sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card {
                flex: 1;
                min-width: 220px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .stat-item:nth-child(2)::after {
                display: none;
            }

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

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

            .cta-actions {
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            .content-section,
            .faq-section,
            .cta-section {
                padding: 60px 0;
            }

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

            .news-card-img {
                width: 100%;
                height: 180px;
            }

            .stats-grid {
                padding: 24px;
            }

            .stat-num {
                font-size: 36px;
            }

            .section-header h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-banner {
                padding: 100px 0 40px;
            }

            .banner-content h1 {
                font-size: 26px;
            }

            .banner-content p {
                font-size: 14px;
            }

            .banner-tags {
                gap: 8px;
            }

            .banner-tags span {
                font-size: 12px;
                padding: 4px 12px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                padding: 20px 16px;
                gap: 16px;
            }

            .stat-num {
                font-size: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .cta-text h2 {
                font-size: 26px;
            }

            .cta-actions {
                flex-direction: column;
                width: 100%;
            }

            .cta-btn-primary,
            .cta-btn-outline {
                width: 100%;
                justify-content: center;
            }

            .news-card-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
        }

/* roulang page: category3 */
:root {
            --brand: #2D5BFF;
            --branddark: #1E44E0;
            --purp: #7B5CFF;
            --gold: #FFB547;
            --golddark: #D98F2B;
            --ink: #1F2640;
            --muted: #5A6A85;
            --bg: #F6F8FC;
            --border: #E9EDF5;
            --card-shadow: 0 10px 30px rgba(45, 91, 255, 0.08);
            --hover-shadow: 0 20px 40px rgba(123, 92, 255, 0.18);
            --btn-shadow: 0 8px 16px rgba(45, 91, 255, 0.25);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--ink);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        /* ---- header & nav ---- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: transparent;
            transition: all 0.35s ease;
            padding: 18px 0;
        }

        .site-header.scrolled {
            background: #FFFFFF;
            box-shadow: 0 4px 30px rgba(31, 38, 64, 0.08);
            padding: 10px 0;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--gold), #FFD78A);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--ink);
            letter-spacing: -0.5px;
            box-shadow: 0 4px 12px rgba(255, 181, 71, 0.35);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #FFFFFF;
            white-space: nowrap;
            transition: color 0.3s;
        }

        .site-header.scrolled .brand-text {
            color: var(--ink);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .main-nav a {
            font-size: 16px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.92);
            position: relative;
            padding: 6px 0;
            transition: color 0.3s;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: #FFFFFF;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 0;
            border-bottom: 2px dotted rgba(255, 255, 255, 0.6);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            opacity: 1;
        }

        .site-header.scrolled .main-nav a {
            color: var(--ink);
        }

        .site-header.scrolled .main-nav a:hover,
        .site-header.scrolled .main-nav a.active {
            color: var(--brand);
        }

        .site-header.scrolled .main-nav a::after {
            border-bottom-color: rgba(45, 91, 255, 0.4);
        }

        .nav-cta {
            background: var(--gold) !important;
            color: var(--ink) !important;
            padding: 10px 22px !important;
            border-radius: 12px;
            font-weight: 600 !important;
            font-size: 15px !important;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 8px 16px rgba(255, 181, 71, 0.35);
            transition: all 0.3s ease;
        }

        .nav-cta:hover {
            background: #FFC866 !important;
            transform: translateY(-2px);
            box-shadow: 0 12px 20px rgba(255, 181, 71, 0.4);
        }

        .nav-cta::after {
            display: none !important;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: transparent;
            padding: 8px;
            z-index: 120;
        }

        .nav-toggle span {
            width: 26px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all 0.3s;
        }

        .site-header.scrolled .nav-toggle span {
            background: var(--ink);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -7px);
        }

        /* mobile drawer */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: #F6F8FC;
            z-index: 110;
            padding: 100px 32px 32px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-20px);
            transition: all 0.35s ease;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mobile-drawer a {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            padding: 14px 16px;
            border-radius: 12px;
            transition: all 0.25s;
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            background: #E9EDF5;
            color: var(--brand);
        }

        .mobile-drawer .mobile-cta {
            margin-top: 16px;
            background: var(--gold);
            color: var(--ink);
            text-align: center;
            font-weight: 700;
            border-radius: 12px;
            box-shadow: 0 8px 16px rgba(255, 181, 71, 0.3);
        }

        /* ---- buttons ---- */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 2px solid transparent;
            cursor: pointer;
        }

        .btn-amber {
            background: var(--gold);
            color: var(--ink);
            box-shadow: 0 8px 16px rgba(45, 91, 255, 0.25);
        }

        .btn-amber:hover {
            background: #FFC866;
            transform: translateY(-4px);
            box-shadow: 0 20px 40px rgba(123, 92, 255, 0.25);
        }

        .btn-amber:active {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(123, 92, 255, 0.2);
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.8);
            color: #FFFFFF;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #FFFFFF;
            transform: translateY(-4px);
        }

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

        .btn-outline-primary:hover {
            background: var(--brand);
            color: #FFFFFF;
            transform: translateY(-3px);
            box-shadow: var(--btn-shadow);
        }

        .btn-white-ghost {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.7);
            color: #FFFFFF;
        }

        .btn-white-ghost:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #FFFFFF;
            transform: translateY(-3px);
        }

        /* ---- hero ---- */
        .insight-hero {
            background: linear-gradient(135deg, #2D5BFF 0%, #7B5CFF 100%);
            position: relative;
            overflow: hidden;
            padding: 180px 0 140px;
        }

        .insight-hero::before {
            content: '';
            position: absolute;
            top: -160px;
            right: -100px;
            width: 560px;
            height: 560px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 181, 71, 0.3) 0%, transparent 70%);
        }

        .insight-hero::after {
            content: '';
            position: absolute;
            bottom: -180px;
            left: -60px;
            width: 460px;
            height: 460px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
        }

        .insight-hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 9999px;
            padding: 8px 20px;
            font-size: 14px;
            color: #FFFFFF;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            color: #FFB547;
        }

        .insight-hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: #FFFFFF;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .hero-sub {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            max-width: 620px;
            margin: 0 auto 36px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            background: rgba(255, 255, 255, 0.1);
            padding: 6px 16px;
            border-radius: 9999px;
        }

        /* ---- stats ---- */
        .insight-stats {
            background: #1F2640;
            border-radius: 24px;
            margin-top: -60px;
            position: relative;
            z-index: 5;
            padding: 48px 40px;
            box-shadow: 0 20px 60px rgba(31, 38, 64, 0.25);
        }

        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            position: relative;
        }

        .stat-item::after {
            content: '';
            position: absolute;
            right: -16px;
            top: 10%;
            height: 80%;
            width: 1px;
            background: rgba(255, 255, 255, 0.1);
        }

        .stat-item:last-child::after {
            display: none;
        }

        .stat-number {
            font-family: "DIN Alternate", "Bebas Neue", sans-serif;
            font-size: 44px;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 1px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 16px;
            }

            .stat-item::after {
                display: none;
            }
        }

        /* ---- section common ---- */
        .section-block {
            padding: 96px 0;
        }

        .section-heading {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-heading .eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
            background: #E9EDF5;
            padding: 6px 16px;
            border-radius: 9999px;
            margin-bottom: 16px;
        }

        .section-heading h2 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--ink);
            letter-spacing: -0.5px;
        }

        .section-heading p {
            font-size: 18px;
            color: var(--muted);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 64px 0;
            }

            .section-heading h2 {
                font-size: 28px;
            }

            .section-heading p {
                font-size: 16px;
            }
        }

        /* ---- dimension cards ---- */
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .dimension-card {
            background: #FFFFFF;
            border-radius: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            padding: 32px 28px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .dimension-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--brand), var(--purp));
            opacity: 0;
            transition: opacity 0.35s;
        }

        .dimension-card:hover {
            box-shadow: var(--hover-shadow);
            transform: translateY(-6px);
        }

        .dimension-card:hover::before {
            opacity: 1;
        }

        .dim-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #EEF1FF, #F3F0FF);
            color: var(--brand);
        }

        .dimension-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--ink);
        }

        .dimension-card p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--muted);
        }

        @media (max-width: 1024px) {
            .dimension-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 560px) {
            .dimension-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ---- deep insight ---- */
        .deep-section {
            background: #FFFFFF;
            padding: 96px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .deep-layout {
            display: grid;
            grid-template-columns: 380px 1fr;
            gap: 64px;
            align-items: center;
        }

        .deep-text h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 20px;
            color: var(--ink);
        }

        .deep-text p {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .deep-points {
            display: grid;
            gap: 20px;
        }

        .deep-point-item {
            background: var(--bg);
            border-radius: 16px;
            padding: 24px 28px;
            display: flex;
            gap: 16px;
            transition: all 0.3s;
            border-left: 4px solid var(--brand);
        }

        .deep-point-item:hover {
            box-shadow: var(--card-shadow);
            transform: translateX(4px);
        }

        .deep-point-num {
            font-family: "DIN Alternate", sans-serif;
            font-size: 28px;
            font-weight: 700;
            color: var(--purp);
            flex-shrink: 0;
        }

        .deep-point-content h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--ink);
        }

        .deep-point-content p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .deep-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }

        /* ---- process ---- */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .process-step {
            background: #FFFFFF;
            border-radius: 24px;
            border: 1px solid var(--border);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            box-shadow: var(--card-shadow);
            transition: all 0.3s;
        }

        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--hover-shadow);
        }

        .process-step .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--brand), var(--purp));
            color: #FFFFFF;
            font-weight: 700;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--ink);
        }

        .process-step p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ---- FAQ ---- */
        .faq-section {
            padding: 96px 0;
            background: var(--bg);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: 20px;
            border: 1px solid var(--border);
            margin-bottom: 16px;
            overflow: hidden;
            transition: all 0.3s;
            box-shadow: 0 2px 10px rgba(31, 38, 64, 0.02);
        }

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

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 28px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            gap: 16px;
            transition: background 0.25s;
        }

        .faq-question:hover {
            background: #FBFCFF;
        }

        .faq-icon {
            width: 30px;
            height: 30px;
            flex-shrink: 0;
            border-radius: 50%;
            background: #FFFAEB;
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            transition: transform 0.3s;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 28px 24px;
            display: none;
            border-top: 2px solid transparent;
            background-image: linear-gradient(to right, var(--brand), var(--purp));
            background-size: 100% 2px;
            background-repeat: no-repeat;
            background-position: top center;
        }

        .faq-item.active .faq-answer {
            display: block;
            padding-top: 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: #4A5568;
            line-height: 1.7;
        }

        /* ---- CTA ---- */
        .cta-section {
            padding: 96px 0 96px;
        }

        .cta-card {
            background: linear-gradient(135deg, #2D5BFF 0%, #7B5CFF 100%);
            border-radius: 32px;
            padding: 64px 72px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 181, 71, 0.3) 0%, transparent 70%);
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -140px;
            left: 20%;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 480px;
        }

        .cta-content h2 {
            font-size: 32px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.7;
        }

        .cta-actions {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 900px) {
            .cta-card {
                padding: 48px 32px;
                flex-direction: column;
                text-align: center;
            }

            .cta-actions {
                justify-content: center;
            }

            .cta-actions .btn {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
        }

        /* ---- footer ---- */
        .site-footer {
            background: #1F2640;
            padding: 64px 0 0;
            color: #A8B3C7;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon {
            width: 40px;
            height: 40px;
            font-size: 16px;
        }

        .footer-logo span:last-child {
            color: #FFFFFF;
            font-weight: 700;
            font-size: 18px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #A8B3C7;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .footer-col ul {
            list-style: none;
            display: grid;
            gap: 12px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: #A8B3C7;
            transition: all 0.3s;
        }

        .footer-col ul a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        .footer-contact {
            display: grid;
            gap: 12px;
        }

        .footer-contact span {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #A8B3C7;
        }

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

        .footer-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 14px;
            padding: 10px 20px;
            border: 2px solid var(--gold);
            border-radius: 12px;
            color: var(--gold);
            font-weight: 600;
            font-size: 14px;
            transition: all 0.3s;
            justify-self: start;
            background: transparent;
        }

        .footer-cta-btn:hover {
            background: var(--gold);
            color: var(--ink);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(168, 179, 199, 0.8);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }

        /* ---- responsive nav ---- */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }
        }

        /* ---- hero responsive ---- */
        @media (max-width: 768px) {
            .insight-hero {
                padding: 140px 0 110px;
            }

            .insight-hero h1 {
                font-size: 34px;
            }

            .hero-sub {
                font-size: 16px;
            }

            .hero-actions .btn {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .insight-hero h1 {
                font-size: 30px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
        }

        /* ---- reveal animation for hero elements ---- */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .insight-hero-content .hero-badge {
            animation: fadeUp 0.5s ease both;
        }

        .insight-hero-content h1 {
            animation: fadeUp 0.5s ease 0.1s both;
        }

        .insight-hero-content .hero-sub {
            animation: fadeUp 0.5s ease 0.2s both;
        }

        .insight-hero-content .hero-actions {
            animation: fadeUp 0.5s ease 0.3s both;
        }

        .insight-hero-content .hero-meta {
            animation: fadeUp 0.5s ease 0.4s both;
        }

        /* focus visibility */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--brand);
            outline-offset: 3px;
            border-radius: 6px;
        }