/* roulang page: index */
:root {
    --color-primary: #2B5DA8;
    --color-primary-dark: #1C3F70;
    --color-accent: #F28C2B;
    --color-accent-soft: #FDE8D2;
    --color-bg: #F5F8FC;
    --color-bg-soft: #EAF1F8;
    --color-surface: #FFFFFF;
    --color-border: #DDE7F0;
    --color-text: #16283C;
    --color-text-secondary: #4D6076;
    --color-text-muted: #8195A8;
    --color-star: #E0A724;
    --gradient-hero: linear-gradient(135deg, #E9F1F9 0%, #F7FAFD 55%, #FFFFFF 100%);
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-pill: 999px;
    --shadow-card: 0 12px 30px rgba(31,56,88,0.08);
    --shadow-card-hover: 0 18px 40px rgba(31,56,88,0.13);
    --shadow-btn: 0 8px 16px rgba(43,93,168,0.22);
    --section-space: clamp(4.5rem, 8vw, 7rem);
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, "Segoe UI", sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

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

a {
    text-decoration: none;
    color: var(--color-primary);
    transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 3px solid rgba(242, 140, 43, .5);
    outline-offset: 2px;
}

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

.grid-container {
    max-width: 1200px;
}

h1, h2, h3, h4 {
    line-height: 1.25;
    font-weight: 700;
}

section[id] {
    scroll-margin-top: 96px;
}

/* ========== Header & Nav ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    height: 72px;
    background: rgba(255, 255, 255, .88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(221, 231, 240, .8);
}

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

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

.brand-mark {
    position: relative;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, #F9A13B, #E86B1C);
    box-shadow: 0 6px 14px rgba(242, 140, 43, .3);
    overflow: hidden;
    flex-shrink: 0;
}

.brand-mark::before {
    content: "";
    position: absolute;
    inset: 7px;
    border-radius: 6px;
    background: rgba(255, 255, 255, .22);
    transform: rotate(15deg);
}

.brand-mark i {
    position: absolute;
    left: 0;
    right: 0;
    top: 4px;
    text-align: center;
    color: #fff;
    font-size: 17px;
    line-height: 34px;
}

.brand-name {
    font-size: 20px;
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: .01em;
}

.brand-name em {
    font-style: normal;
    color: var(--color-accent);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 7px 15px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

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

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

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

.header-action-desktop,
.header-action-mobile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-switch {
    position: relative;
}

.lang-current {
    height: 34px;
    padding: 0 14px;
    border: 1px solid var(--color-border);
    background: #F0F5FA;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 7px;
    cursor: pointer;
    transition: border-color .2s ease, background .2s ease;
}

.lang-current:hover {
    border-color: #b9cbd9;
    background: #EAF1F8;
}

.lang-current i {
    font-size: 11px;
    color: var(--color-text-muted);
}

.lang-dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    min-width: 130px;
    padding: 8px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: var(--shadow-card);
    display: none;
    z-index: 20;
}

.lang-dropdown.open {
    display: block;
}

.lang-dropdown a {
    display: block;
    padding: 8px 12px;
    font-size: 14px;
    border-radius: 8px;
    color: var(--color-text-secondary);
}

.lang-dropdown a:hover {
    background: var(--color-bg-soft);
    color: var(--color-primary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-pill);
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 14px 24px rgba(43, 93, 168, .3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: #fff;
    color: var(--color-primary);
    border-color: var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-soft);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 14px 30px;
    font-size: 16px;
}

.nav-cta {
    padding: 10px 20px;
    font-size: 14px;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: #fff;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
    content: "";
    display: block;
    width: 18px;
    height: 2px;
    background: var(--color-text);
    border-radius: 3px;
    position: relative;
    transition: transform .25s ease;
}

.menu-toggle span::before {
    position: absolute;
    top: -6px;
}

.menu-toggle span::after {
    position: absolute;
    top: 6px;
}

/* ========== Hero ========== */
.hero {
    position: relative;
    overflow: hidden;
    background: var(--gradient-hero);
    padding: clamp(3.5rem, 7vw, 6.2rem) 0 clamp(3rem, 6vw, 4.8rem);
}

.hero::before {
    content: "";
    position: absolute;
    top: -180px;
    right: -120px;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: rgba(43, 93, 168, .06);
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -220px;
    left: 18%;
    width: 520px;
    height: 320px;
    background: radial-gradient(ellipse at center, rgba(242, 140, 43, .12), transparent 70%);
    pointer-events: none;
}

.hero-decor-line {
    position: absolute;
    top: 10%;
    left: -40px;
    width: 220px;
    height: 220px;
    opacity: .08;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cpath d='M40 170C70 120 45 62 120 42c50-13 72 22 62 55' fill='none' stroke='%23F28C2B' stroke-width='12' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center/contain;
    pointer-events: none;
}

.hero-copy {
    position: relative;
    z-index: 2;
    padding-right: 24px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 28px;
    padding: 0 12px;
    border-radius: 6px;
    background: var(--color-bg-soft);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
}

.badge-orange {
    background: var(--color-accent-soft);
    color: #C05D1E;
}

.badge i {
    font-size: 13px;
}

.hero h1 {
    font-size: clamp(30px, 3.6vw, 48px);
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--color-text);
    margin-bottom: 20px;
    line-height: 1.22;
}

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

.hero h1 .hero-highlight svg {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    width: 100%;
    height: 8px;
}

.hero-lead {
    font-size: 17px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin-bottom: 30px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 32px;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 26px;
    font-size: 13px;
    color: var(--color-text-muted);
    border-top: 1px solid rgba(183, 201, 221, .5);
    padding-top: 20px;
}

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

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

.hero-media-inner {
    position: relative;
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow-card-hover);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transform: rotate(2deg);
    transition: transform .35s ease;
}

.hero-media-inner:hover {
    transform: rotate(0) translateY(-4px);
}

.hero-media-inner > img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}

.hero-media-float {
    position: absolute;
    left: -20px;
    bottom: 30px;
    background: #fff;
    border-radius: 14px;
    box-shadow: var(--shadow-card-hover);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--color-border);
}

.hero-media-float i {
    font-size: 24px;
    color: var(--color-primary);
}

.hero-media-float strong {
    display: block;
    font-size: 15px;
    color: var(--color-text);
}

.hero-media-float span {
    font-size: 12px;
    color: var(--color-text-muted);
}

/* ========== Section Common ========== */
.section {
    padding: var(--section-space) 0;
}

.section-head {
    max-width: 720px;
    margin-bottom: clamp(2rem, 4vw, 3.2rem);
}

.section-eyebrow {
    display: inline-block;
    padding: 4px 14px;
    border-radius: var(--radius-pill);
    background: var(--color-bg-soft);
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
    letter-spacing: .05em;
}

.section-head h2,
.section-head .h2-like {
    font-size: clamp(26px, 2.6vw, 36px);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 12px;
    line-height: 1.3;
}

.section-desc {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.text-muted {
    color: var(--color-text-muted);
}

/* ========== Service Cards ========== */
.services-section {
    background: var(--color-surface);
}

.service-card {
    position: relative;
    height: 100%;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 30px 28px;
    box-shadow: var(--shadow-card);
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: #cfe0f0;
}

.service-card-featured {
    background: linear-gradient(145deg, #F2F7FC, #ffffff);
}

.service-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--color-bg-soft);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
}

.service-icon i {
    line-height: 1;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    flex: 1;
}

.service-link {
    font-weight: 700;
    font-size: 14px;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.service-link i {
    font-size: 12px;
    transition: transform .22s ease;
}

.service-link:hover i {
    transform: translateX(5px);
}

.card-column-gap {
    padding-bottom: 24px;
}

/* ========== Stats ========== */
.stats-section {
    background: linear-gradient(120deg, #1c3f70 0%, #16345A 100%);
    color: #fff;
    padding: clamp(3.6rem, 6vw, 5.5rem) 0;
    position: relative;
}

.stats-section::after {
    content: "";
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cpath d='M0 60h60v60M120 0H60v60' stroke='%23ffffff' stroke-opacity='.04'/%3E%3C/svg%3E");
    pointer-events: none;
}

.stats-inner {
    position: relative;
    z-index: 1;
}

.stats-note {
    max-width: 720px;
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .72);
    margin-bottom: 36px;
    padding-left: 16px;
    border-left: 3px solid var(--color-accent);
}

.stats-grid {
    display: flex;
    flex-wrap: wrap;
}

.stat-item {
    padding: 20px 20px;
    border-right: 1px solid rgba(255, 255, 255, .09);
}

.stat-item:last-child {
    border-right: 0;
}

.stat-number {
    font-size: clamp(34px, 4vw, 52px);
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.1;
    display: block;
}

.stat-number em {
    font-style: normal;
    color: var(--color-accent);
    font-size: .7em;
    margin-left: 2px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, .74);
    margin-top: 10px;
    line-height: 1.5;
}

/* ========== Case ========== */
.cases-section {
    background: var(--color-bg);
}

.case-timeline {
    position: relative;
    max-width: 980px;
}

.case-item {
    display: flex;
    gap: 28px;
    align-items: stretch;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    padding: 24px;
    margin-bottom: 20px;
    transition: background .25s ease, box-shadow .25s ease, transform .25s ease;
    scroll-margin-top: 120px;
}

.case-item:hover {
    background: var(--color-bg-soft);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-3px);
}

.case-order {
    flex-shrink: 0;
    width: 50px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    font-weight: 800;
    font-size: 24px;
    color: var(--color-accent);
    padding-top: 8px;
}

.case-content {
    flex: 1;
}

.case-content .tag {
    display: inline-block;
    background: var(--color-bg-soft);
    color: var(--color-primary);
    padding: 3px 12px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
}

.case-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.case-content p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.case-media {
    flex: 0 0 280px;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
}

.case-media img {
    width: 100%;
    height: 100%;
    min-height: 150px;
    object-fit: cover;
    transition: transform .35s ease;
}

.case-item:hover .case-media img {
    transform: scale(1.05);
}

/* ========== Plan ========== */
.plans-section {
    background: var(--color-surface);
}

.plan-vertical-note {
    padding-left: 8px;
    margin-bottom: 28px;
}

.plan-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 34px 30px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform .3s ease, box-shadow .3s ease;
}

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

.plan-card-pro {
    background: linear-gradient(145deg, #EDF4FB, #FFFFFF);
    border-color: #C6DAEE;
}

.plan-name {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.plan-name h3 {
    font-size: 23px;
    font-weight: 800;
    color: var(--color-text);
}

.plan-badge {
    background: var(--color-accent-soft);
    color: #C05D1E;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
}

.plan-desc {
    color: var(--color-text-secondary);
    margin: 10px 0 20px;
    font-size: 15px;
    line-height: 1.7;
}

.plan-list {
    list-style: none;
    margin: 0 0 26px;
}

.plan-list li {
    list-style: none;
    padding-left: 26px;
    position: relative;
    color: var(--color-text-secondary);
    font-size: 15px;
    line-height: 2;
}

.plan-list li i {
    position: absolute;
    left: 0;
    top: 8px;
    width: 18px;
    height: 18px;
    color: var(--color-accent);
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.plan-card .btn {
    margin-top: auto;
}

.plan-mt {
    margin-top: 2.5rem;
}

/* ========== FAQ ========== */
.faq-section {
    background: var(--color-bg-soft);
}

.faq-list {
    max-width: 860px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    margin-bottom: 14px;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(31, 56, 88, .04);
    transition: box-shadow .25s ease, border-color .25s ease;
}

.faq-item.open {
    border-color: #C7D8EC;
    box-shadow: 0 12px 28px rgba(31, 56, 88, .09);
}

.faq-trigger {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    border: 0;
    padding: 18px 22px;
    text-align: left;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    min-height: 56px;
    gap: 20px;
}

.faq-trigger i {
    font-size: 16px;
    color: var(--color-primary);
    transition: transform .28s ease;
    flex-shrink: 0;
}

.faq-item.open .faq-trigger i {
    transform: rotate(45deg);
}

.faq-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
}

.faq-panel-inner {
    padding: 0 22px 20px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.faq-more {
    text-align: center;
    margin-top: 24px;
}

.faq-more a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-weight: 700;
    font-size: 15px;
}

/* ========== Contact ========== */
.contact-section {
    background: var(--color-bg);
    padding: var(--section-space) 0;
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: "";
    position: absolute;
    right: -80px;
    top: 40px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(43, 93, 168, .05);
}

.contact-wrap {
    position: relative;
    background: #fff;
    border-radius: calc(var(--radius-lg) * 1.4);
    padding: 48px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
}

.contact-form label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
    display: block;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid var(--color-border);
    background: #F9FBFD;
    border-radius: 10px;
    padding: 12px 14px;
    font-family: inherit;
    font-size: 15px;
    color: var(--color-text);
    margin-bottom: 18px;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(242, 140, 43, .22);
}

.contact-form .btn {
    width: 100%;
    margin-top: 4px;
}

.form-note {
    margin-top: 14px;
    font-size: 12px;
    color: var(--color-text-muted);
    text-align: center;
    line-height: 1.6;
}

.contact-info-card {
    background: var(--color-bg-soft);
    border-radius: var(--radius-lg);
    padding: 30px;
    height: 100%;
    border: 1px solid rgba(203, 219, 236, .6);
}

.contact-info-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.contact-info-card > p {
    color: var(--color-text-secondary);
    font-size: 15px;
    margin-bottom: 20px;
}

.contact-channel {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(203, 219, 236, .55);
}

.contact-channel:last-child {
    border-bottom: 0;
}

.contact-channel-icon {
    width: 42px;
    height: 42px;
    background: #fff;
    border-radius: 12px;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
}

.contact-channel strong {
    font-size: 15px;
    display: block;
}

.contact-channel span {
    font-size: 13px;
    color: var(--color-text-muted);
}

.contact-info-img {
    margin-top: 18px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.contact-info-img img {
    height: 150px;
    width: 100%;
    object-fit: cover;
}

/* ========== Footer ========== */
.site-footer {
    background: #11253C;
    color: #CED9E3;
    padding: 60px 0 0;
}

.footer-top {
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

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

.footer-brand .brand-mark {
    width: 28px;
    height: 28px;
    border-radius: 8px;
}

.footer-brand .brand-name {
    color: #fff;
    font-size: 18px;
}

.footer-about-text {
    font-size: 14px;
    line-height: 1.8;
    color: #B6C6D6;
    margin-bottom: 20px;
    max-width: 320px;
}

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

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

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

.footer-column ul a {
    color: #B6C6D6;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    position: relative;
}

.footer-column ul a::before {
    content: "";
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width .25s ease;
}

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

.footer-column ul a:hover::before {
    width: 100%;
}

.footer-bottom {
    padding: 18px 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, .55);
}

.footer-bottom .footer-copyright i {
    font-style: normal;
}

/* ========== Mobile ========== */
.mobile-meta {
    display: none;
}

@media (max-width: 1080px) {
    .header-action-desktop {
        display: none;
    }

    .header-action-mobile {
        display: flex;
        flex-direction: column;
        width: 100%;
        padding: 18px 4px 4px;
        border-top: 1px solid var(--color-border);
        margin-top: 14px;
    }

    .header-action-mobile .lang-switch {
        width: 100%;
    }

    .header-action-mobile .lang-current {
        width: 100%;
        justify-content: space-between;
    }

    .header-action-mobile .nav-cta {
        width: 100%;
        margin-top: 4px;
    }

    .menu-toggle {
        display: flex;
    }

    .header-nav {
        position: absolute;
        top: calc(100% + 16px);
        left: 16px;
        right: 16px;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        background: #fff;
        border-radius: 18px;
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-card-hover);
        padding: 16px;
        gap: 4px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity .25s ease, transform .25s ease, visibility .25s;
    }

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

    .nav-link {
        display: flex;
        padding: 12px 16px;
        border-radius: 12px;
        min-height: 44px;
        font-size: 16px;
    }

    .mobile-meta {
        display: flex;
        flex-direction: column;
    }

    .hero-media-float {
        left: 12px;
        bottom: 14px;
    }
}

@media (min-width: 1081px) {
    .header-action-mobile {
        display: none;
    }

    .mobile-meta {
        display: none;
    }

    .menu-toggle {
        display: none;
    }
}

@media (max-width: 1024px) and (min-width: 641px) {
    .case-media {
        flex: 0 0 210px;
    }

    .contact-wrap {
        row-gap: 36px;
    }
}

@media (max-width: 640px) {
    .section {
        padding: 56px 0;
    }

    .header-inner {
        height: 64px;
    }

    .site-header {
        height: 64px;
    }

    .brand-name {
        font-size: 18px;
    }

    .hero {
        padding: 40px 0 54px;
    }

    .hero h1 {
        font-size: clamp(27px, 6vw, 34px);
        line-height: 1.3;
    }

    .hero-lead {
        font-size: 15px;
    }

    .hero-actions {
        gap: 10px;
    }

    .hero-actions .btn {
        padding: 11px 18px;
        font-size: 14px;
        flex: 1;
    }

    .hero-trust {
        flex-direction: column;
        gap: 8px;
        padding-top: 16px;
    }

    .hero-media-inner > img {
        height: 240px;
    }

    .hero-media-float {
        left: 8px;
        bottom: 8px;
        padding: 8px 12px;
    }

    .hero-media-float strong {
        font-size: 13px;
    }

    .section-head h2 {
        font-size: 25px;
    }

    .service-card {
        padding: 24px 20px;
    }

    .stats-note {
        font-size: 15px;
        padding-left: 12px;
    }

    .stat-item {
        padding: 16px 8px;
        border-right: 0;
    }

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

    .case-item {
        flex-direction: column;
        padding: 18px;
        gap: 16px;
    }

    .case-order {
        display: none;
    }

    .case-media {
        flex: 1 0 auto;
    }

    .case-media img {
        height: 190px;
    }

    .plan-card {
        padding: 26px 20px;
    }

    .plan-mt {
        margin-top: 0;
    }

    .plan-space-bottom {
        margin-bottom: 24px;
    }

    .faq-trigger {
        font-size: 15px;
        padding: 15px 16px;
    }

    .faq-panel-inner {
        padding: 0 16px 16px;
    }

    .contact-wrap {
        padding: 30px 20px;
        border-radius: 18px;
    }

    .contact-form input,
    .contact-form textarea {
        padding: 11px 12px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

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

    .btn-lg {
        padding: 12px 20px;
        font-size: 15px;
    }

    .section-eyebrow {
        font-size: 12px;
    }

    .case-content h3 {
        font-size: 17px;
    }

    .plan-name h3 {
        font-size: 20px;
    }
}

/* roulang page: category1 */
:root {
  --color-primary: #2B5DA8;
  --color-primary-dark: #1C3F70;
  --color-accent: #F28C2B;
  --color-accent-soft: #FDE8D2;
  --color-bg: #F5F8FC;
  --color-bg-soft: #EAF1F8;
  --color-surface: #FFFFFF;
  --color-border: #DDE7F0;
  --color-text: #16283C;
  --color-text-secondary: #4D6076;
  --color-text-muted: #8195A8;
  --color-star: #E0A724;
  --gradient-hero: linear-gradient(135deg, #E9F1F9 0%, #F7FAFD 55%, #FFFFFF 100%);
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --shadow-card: 0 12px 30px rgba(31, 56, 88, .08);
  --shadow-card-hover: 0 18px 40px rgba(31, 56, 88, .13);
  --shadow-btn: 0 8px 16px rgba(43, 93, 168, .22);
  --section-space: clamp(4.5rem, 8vw, 7rem);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(242, 140, 43, .5);
  outline-offset: 2px;
}

section[id],
div[id] {
  scroll-margin-top: 96px;
}

.grid-container {
  max-width: 1200px;
}

h1, h2, h3, h4, h5, p {
  margin-top: 0;
}

h1, h2, h3 {
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.25;
}

h4 {
  font-weight: 600;
}

.container-mask {
  overflow: hidden;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  height: 72px;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(221, 231, 240, .8);
}

.header-inner {
  position: relative;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.brand-mark {
  position: relative;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #F9A13B, #E86B1C);
  box-shadow: 0 6px 14px rgba(242, 140, 43, .3);
  overflow: hidden;
  flex-shrink: 0;
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 6px;
  background: rgba(255, 255, 255, .22);
  transform: rotate(15deg);
}

.brand-mark i {
  position: absolute;
  left: 0;
  right: 0;
  top: 4px;
  text-align: center;
  color: #fff;
  font-size: 17px;
  line-height: 34px;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: .01em;
}

.brand-name em {
  font-style: normal;
  color: var(--color-accent);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.header-nav .header-action-mobile,
.header-nav .nav-cta {
  display: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

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

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

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

.header-action-desktop,
.header-action-mobile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  position: relative;
  display: flex;
  align-items: center;
}

.lang-current {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 15px;
  background: var(--color-bg-soft);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.lang-current:hover {
  background: #dfeaf5;
  border-color: var(--color-border);
  color: var(--color-primary);
}

.lang-current i {
  color: var(--color-primary);
  font-size: 13px;
}

.lang-list {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 30;
  min-width: 160px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card-hover);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all .22s ease;
}

.lang-switch:hover .lang-list,
.lang-current:focus-visible + .lang-list,
.lang-list:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-list a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.lang-list a:hover {
  background: var(--color-bg-soft);
  color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 24px rgba(43, 93, 168, .3);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: #fff;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-soft);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 30px;
  font-size: 16px;
}

.nav-cta {
  padding: 10px 22px;
  font-size: 14px;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 3px;
  position: relative;
  transition: transform .25s ease, background .25s ease;
}

.menu-toggle span::before {
  position: absolute;
  top: -6px;
}

.menu-toggle span::after {
  position: absolute;
  top: 6px;
}

.menu-toggle.is-active span {
  background: transparent;
}

.menu-toggle.is-active span::before {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle.is-active span::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* Page hero */
.library-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.6rem, 5vw, 4rem) 0 clamp(2.4rem, 4vw, 3.6rem);
  background:
    linear-gradient(105deg, rgba(233, 241, 249, .97) 22%, rgba(247, 250, 253, .92) 68%, rgba(255, 255, 255, .9)),
    url('/assets/images/backpic/back-1.jpg');
  background-position: center left, center;
  background-size: cover, cover;
  border-bottom: 1px solid var(--color-border);
}

.library-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -110px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(242, 140, 43, .07);
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.breadcrumb i {
  font-size: 11px;
  color: var(--color-text-muted);
}

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

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

.breadcrumb span {
  color: var(--color-text-secondary);
}

.library-hero h1 {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 12px;
  color: var(--color-text);
}

.hero-lead {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 22px;
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .72);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
}

.hero-badge i {
  color: var(--color-accent);
  font-size: 12px;
}

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

.hero-trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 26px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.hero-trust-line i {
  color: var(--color-primary);
  font-size: 13px;
}

.library-hero-visual {
  position: relative;
  text-align: center;
}

.library-hero-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card-hover);
  border: 6px solid rgba(255, 255, 255, .5);
  transform: rotate(2deg);
  transition: transform .3s ease;
}

.library-hero-visual img:hover {
  transform: rotate(0deg) scale(1.01);
}

.library-hero-visual::before {
  content: "";
  position: absolute;
  width: 90px;
  height: 90px;
  left: -18px;
  bottom: -18px;
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(242, 140, 43, 0.2), rgba(242, 140, 43, 0.05));
  border: 1px solid rgba(242, 140, 43, .25);
  z-index: -1;
}

/* Filter toolbar */
.filter-toolbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.filter-toolbar .grid-container {
  padding-top: 14px;
  padding-bottom: 14px;
}

.filter-row {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 4px;
}

.filter-row::-webkit-scrollbar {
  display: none;
}

.filter-row-label {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 600;
  margin: 0;
}

.filter-row-label i {
  color: var(--color-accent);
  font-size: 13px;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all .2s ease;
}

.filter-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-bg-soft);
}

.filter-chip.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(43, 93, 168, .16);
}

/* Main section */
.library-main {
  padding: var(--section-space) 0;
  background: var(--color-bg);
}

.section-heading {
  margin-bottom: 36px;
}

.section-heading h2 {
  font-size: clamp(26px, 2.6vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 10px;
}

.section-heading p {
  max-width: 720px;
  color: var(--color-text-secondary);
  font-size: 16px;
  margin-bottom: 0;
}

.material-content-list .card-item {
  margin-bottom: 24px;
}

.material-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(31, 56, 88, .04);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.material-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
  border-color: #c3d4e5;
}

.material-card:focus-within {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent);
}

.card-figure {
  overflow: hidden;
  margin: 0;
  background: var(--color-bg-soft);
  position: relative;
}

.card-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}

.material-card:hover .card-figure img {
  transform: scale(1.04);
}

.material-card .card-body {
  padding: 24px 24px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.material-card .card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-radius: 7px;
  padding: 3px 10px;
  background: var(--color-bg-soft);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
}

.badge-orange {
  background: var(--color-accent-soft);
  color: #b85603;
}

.material-card .card-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

.material-card .card-desc {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 12px;
}

.card-more {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
}

.card-more:hover {
  color: var(--color-primary-dark);
}

.card-more i {
  font-size: 12px;
  transition: transform .2s ease;
}

.card-more:hover i {
  transform: translateX(3px);
}

.material-card-featured {
  flex-direction: row;
  align-items: stretch;
}

.material-card-featured .card-figure {
  width: 40%;
  min-height: 200px;
  flex-shrink: 0;
}

.full-highlight-card {
  background: linear-gradient(115deg, #fff8f1 0%, #ffffff 40%, #ffffff 100%);
  border-color: #f0c9a8;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}

.text-link i {
  font-size: 12px;
  transition: transform .2s ease;
}

.text-link:hover {
  color: var(--color-primary-dark);
  border-bottom-color: rgba(43, 93, 168, .25);
}

.text-link:hover i {
  transform: translateX(3px);
}

/* Sidebar */
.library-sidebar {
  position: sticky;
  top: 96px;
}

.sidebar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 6px 20px rgba(31, 56, 88, .05);
  padding: 26px 24px;
  margin-bottom: 22px;
}

.sidebar-card .sidebar-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
}

.sidebar-title i {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-soft);
  border-radius: 8px;
  color: var(--color-primary);
  font-size: 14px;
}

.guide-intro {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 14px;
}

.sidebar-cta {
  display: inline-flex;
  justify-content: center;
  width: 100%;
  margin-bottom: 10px;
}

.sidebar-textlink {
  display: inline-flex;
  justify-content: center;
  width: 100%;
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
}

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

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-cloud a {
  display: inline-flex;
  padding: 4px 13px;
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.8;
  transition: all .2s ease;
}

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

.recommend-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.recommend-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px dashed #e3ebf3;
}

.recommend-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.recommend-list li a {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.recommend-list li a:hover {
  color: var(--color-primary);
}

.recommend-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  margin-top: 10px;
}

/* Pagination */
.pager-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
}

.pager-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.pager-link,
.pager-dot {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 600;
  transition: all .2s ease;
}

.pager-link:hover {
  background: var(--color-bg-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pager-link.is-current {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  cursor: default;
}

.pager-text {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* Orange CTA */
.cta-orange-section {
  padding-bottom: 0;
  margin-top: 10px;
}

.cta-orange {
  position: relative;
  overflow: hidden;
  padding: 28px 34px;
  border-radius: var(--radius-lg);
  background: linear-gradient(100deg, #f28c2b 0%, #f7a95a 68%, #ffcf9e 100%);
  box-shadow: 0 16px 40px rgba(242, 140, 43, .18);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px;
}

.cta-orange::after {
  content: "";
  position: absolute;
  right: 40px;
  top: -50px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .16);
}

.cta-orange .cta-copy {
  position: relative;
  z-index: 1;
  max-width: 650px;
}

.cta-orange .cta-copy h3 {
  color: #fff;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 700;
  margin-bottom: 5px;
}

.cta-orange .cta-copy p {
  color: rgba(255, 255, 255, .9);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
}

.cta-orange .btn {
  position: relative;
  z-index: 1;
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
  box-shadow: 0 8px 20px rgba(140, 74, 10, .14);
}

.cta-orange .btn:hover {
  background: var(--color-bg-soft);
  border-color: var(--color-bg-soft);
}

/* FAQ */
.faq-section {
  padding: var(--section-space) 0;
  background: var(--color-surface);
}

.section-title-block {
  margin-bottom: 40px;
}

.section-title-block .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  margin-bottom: 10px;
}

.section-title-block .eyebrow i {
  color: var(--color-accent);
}

.section-title-block h2 {
  font-size: clamp(26px, 2.6vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 10px;
}

.section-title-block p {
  color: var(--color-text-secondary);
  max-width: 720px;
  margin-bottom: 0;
}

.faq-list {
  max-width: 860px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease, background .2s ease;
}

.faq-item.is-open {
  border-color: #c4d7ea;
  background: #fff;
  box-shadow: 0 6px 18px rgba(31, 56, 88, .05);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  border: 0;
  padding: 17px 22px;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  min-height: 48px;
}

.faq-question span:first-child {
  flex: 1;
  line-height: 1.5;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--color-bg-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.faq-icon i {
  transition: transform .25s ease;
  font-size: 14px;
}

.faq-item.is-open .faq-icon i {
  transform: rotate(135deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.faq-answer-inner {
  padding: 0 22px 20px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-help-link {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text-muted);
  font-size: 14px;
}

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

/* Footer */
.site-footer {
  background: #122a42;
  color: rgba(255, 255, 255, .72);
  padding: 52px 0 0;
}

.site-footer .brand-name {
  color: #fff;
}

.footer-top {
  padding-bottom: 36px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-about-text {
  color: rgba(255, 255, 255, .66);
  font-size: 15px;
  line-height: 1.8;
  max-width: 360px;
  margin-bottom: 0;
}

.footer-column h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 14px;
}

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

.footer-column li {
  margin-bottom: 9px;
}

.footer-column a {
  color: rgba(255, 255, 255, .62);
  font-size: 15px;
  line-height: 1.6;
}

.footer-column a:hover {
  color: #fff;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 1px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-copyright {
  color: rgba(255, 255, 255, .58);
  font-size: 14px;
}

/* Responsive */
@media screen and (max-width: 1023px) {
  .header-actions {
    display: none;
  }

  .header-nav .nav-cta {
    display: inline-flex;
  }

  .header-nav .header-action-mobile {
    display: flex;
    width: 100%;
    margin: 6px 0 10px;
  }

  .header-action-mobile .lang-switch {
    width: 100%;
    flex-shrink: 0;
  }

  .header-action-mobile .lang-current {
    width: 100%;
    justify-content: center;
  }

  .header-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    z-index: 50;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    box-shadow: var(--shadow-card-hover);
    padding: 18px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    pointer-events: none;
    transition: all .25s ease;
  }

  .header-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .header-nav .nav-link {
    padding: 12px 20px;
    font-size: 16px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .library-hero h1 {
    font-size: clamp(26px, 6vw, 38px);
  }

  .material-card-featured {
    flex-direction: row;
  }

  .material-card-featured .card-figure {
    width: 40%;
  }

  .library-sidebar {
    position: static;
    margin-top: 20px;
  }
}

@media screen and (max-width: 767px) {
  .library-hero {
    padding-top: 32px;
    padding-bottom: 32px;
  }

  .library-hero-visual {
    margin-top: 24px;
  }

  .library-hero-visual img {
    aspect-ratio: 16 / 10;
    transform: none;
  }

  .section-heading {
    margin-bottom: 24px;
  }

  .material-card-featured {
    flex-direction: column;
  }

  .material-card-featured .card-figure {
    width: 100%;
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .cta-orange {
    padding: 24px 22px;
  }

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

@media screen and (max-width: 520px) {
  .header-inner {
    padding: 0 4px;
  }

  .brand-name {
    font-size: 18px;
  }

  .nav-cta {
    padding: 9px 16px;
    font-size: 13px;
  }

  .btn-lg {
    width: 100%;
  }

  .hero-btn-group .btn {
    width: 100%;
  }

  .filter-row {
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .filter-chip {
    height: 34px;
    font-size: 13px;
    padding: 0 14px;
  }
}