/* roulang page: index */
/* ==========================================
   设计变量
   ========================================== */
:root {
    --bg-base: #F5F3EF;
    --bg-card: #FFFFFF;
    --bg-soft: #EFEBE3;
    --color-primary: #1E3B2F;
    --color-primary-dark: #163027;
    --color-primary-light: rgba(30, 59, 47, .08);
    --color-accent: #B08D57;
    --color-accent-light: rgba(176, 141, 87, .12);
    --color-text: #1A1A18;
    --color-muted: #5C5A55;
    --color-border: #E5E0D6;
    --color-footer-bg: #16281F;
    --color-footer-text: #EFEAE0;
    --color-danger: #B04040;
    --radius-card: 8px;
    --radius-btn: 4px;
    --radius-pill: 20px;
    --radius-badge: 4px;
    --shadow-sm: 0 1px 2px rgba(26, 26, 24, .04), 0 4px 12px rgba(26, 26, 24, .06);
    --shadow-hover: 0 2px 4px rgba(26, 26, 24, .06), 0 10px 24px rgba(26, 26, 24, .10);
    --font-serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --transition: 200ms cubic-bezier(.22, .61, .36, 1);
    --container-max: 1200px;
}

/* ==========================================
   Reset & Base
   ========================================== */
*, *::before, *::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--bg-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img {
    max-width: 100%;
    height: auto;
}
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}
.container {
    max-width: var(--container-max);
}
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.3;
    margin-top: 0;
    margin-bottom: .75rem;
}
p {
    margin-top: 0;
    margin-bottom: 1rem;
}

/* ==========================================
   按钮系统
   ========================================== */
.btn {
    border-radius: var(--radius-btn);
    padding: .75rem 1.75rem;
    font-size: .9375rem;
    font-weight: 500;
    line-height: 1.5;
    transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
}
.btn:active {
    transform: scale(.98);
}
.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(30, 59, 47, .2);
}
.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover,
.btn-outline:focus {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
    text-decoration: none;
}
.btn-light-custom {
    background-color: #fff;
    color: var(--color-primary);
    border-color: #fff;
}
.btn-light-custom:hover,
.btn-light-custom:focus {
    background-color: var(--bg-soft);
    border-color: var(--bg-soft);
    color: var(--color-primary);
    text-decoration: none;
}
.btn-sm {
    padding: .4rem 1rem;
    font-size: .8125rem;
}
.btn-lg {
    padding: .875rem 2rem;
    font-size: 1rem;
}

/* ==========================================
   文本链接
   ========================================== */
.text-link {
    color: var(--color-primary);
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), color var(--transition);
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}
.text-link:hover {
    color: var(--color-primary-dark);
    border-color: var(--color-primary);
    text-decoration: none;
}
.text-link i {
    font-size: .75rem;
    transition: transform var(--transition);
}
.text-link:hover i {
    transform: translateX(3px);
}

/* ==========================================
   双层导航
   ========================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background-color: var(--bg-base);
    border-bottom: 1px solid transparent;
    transition: background-color var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.site-header.is-scrolled {
    background-color: rgba(245, 243, 239, .92);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    border-bottom-color: var(--color-border);
    box-shadow: 0 2px 12px rgba(26, 26, 24, .06);
}
.header-top {
    height: 64px;
    display: flex;
    align-items: center;
}
.header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 1.5rem;
}
.brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-shrink: 0;
    color: var(--color-text);
    text-decoration: none;
}
.brand:hover {
    text-decoration: none;
    color: var(--color-text);
}
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background-color: var(--color-primary);
    color: var(--color-accent);
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: .8125rem;
    border-radius: 6px;
    letter-spacing: .02em;
}
.brand-text {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: .01em;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: .75rem;
}
.header-search {
    position: relative;
    width: 220px;
}
.header-search input {
    width: 100%;
    height: 38px;
    padding: 0 2.2rem 0 .875rem;
    font-size: .875rem;
    color: var(--color-text);
    background-color: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.header-search input::placeholder {
    color: #9A968F;
}
.header-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 59, 47, .12);
}
.header-search .search-icon {
    position: absolute;
    right: .75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-muted);
    font-size: .8125rem;
    pointer-events: none;
}
.header-cta {
    flex-shrink: 0;
    white-space: nowrap;
}
.navbar-toggler {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    width: 40px;
    height: 38px;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    cursor: pointer;
    padding: 0;
    transition: background-color var(--transition);
}
.navbar-toggler:hover {
    background-color: var(--color-primary-light);
}
.navbar-toggler:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(30, 59, 47, .12);
}
.navbar-toggler i {
    font-size: 1rem;
}

/* 第二行频道Tabs */
.header-nav {
    height: 48px;
    display: flex;
    align-items: center;
    border-top: 1px solid var(--color-border);
}
.nav-tabs-pill {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: .5rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    white-space: nowrap;
    width: 100%;
}
.nav-tabs-pill::-webkit-scrollbar {
    display: none;
}
.nav-tabs-pill .nav-item {
    flex-shrink: 0;
}
.nav-tabs-pill .nav-link {
    display: inline-block;
    padding: .3rem 1rem;
    font-size: .875rem;
    border-radius: var(--radius-pill);
    background-color: var(--bg-soft);
    color: #3A3834;
    transition: background-color var(--transition), color var(--transition), box-shadow var(--transition);
    border: none;
    text-decoration: none;
    line-height: 1.6;
}
.nav-tabs-pill .nav-link:hover {
    background-color: #DFD9CF;
    color: var(--color-text);
    text-decoration: none;
}
.nav-tabs-pill .nav-link.active {
    background-color: var(--color-primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(30, 59, 47, .2);
}

/* 移动端搜索展开 */
.mobile-search-wrap {
    display: none;
    padding: .75rem 0 .25rem;
}

/* ==========================================
   Hero 首屏
   ========================================== */
.hero {
    position: relative;
    min-height: 75vh;
    display: flex;
    align-items: center;
    padding: 5rem 0;
    overflow: hidden;
    background-image: linear-gradient(rgba(245, 243, 239, .55), rgba(245, 243, 239, .85)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
}
.hero::before {
    content: '';
    position: absolute;
    right: -120px;
    bottom: -160px;
    width: 320px;
    height: 320px;
    border: 1px solid var(--color-accent);
    border-radius: 50%;
    opacity: .4;
}
.hero::after {
    content: '';
    position: absolute;
    right: -60px;
    bottom: -80px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(176, 141, 87, .12) 0%, transparent 70%);
}
.hero .container {
    position: relative;
    z-index: 2;
}
.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    max-width: 720px;
    animation: heroFadeUp .5s cubic-bezier(.22, .61, .36, 1) both;
}
@keyframes heroFadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.hero h1 {
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    line-height: 1.15;
    letter-spacing: -.01em;
    margin-bottom: 1rem;
}
.hero h1 .hero-subline {
    display: block;
    font-size: clamp(1.6rem, 2.8vw, 2.3rem);
    color: var(--color-accent);
    margin-top: .15rem;
}
.hero-desc {
    font-size: 1.0625rem;
    color: var(--color-muted);
    margin-bottom: 1.75rem;
    max-width: 480px;
    line-height: 1.7;
}
.hero-actions {
    display: flex;
    gap: .75rem;
    flex-wrap: wrap;
}

/* ==========================================
   通用 Section
   ========================================== */
.section {
    padding: 4.5rem 0;
}
.section-head {
    margin-bottom: 2.5rem;
}
.section-head h2 {
    font-size: clamp(1.6rem, 2.6vw, 2.2rem);
    margin-bottom: .5rem;
}
.section-sub {
    color: var(--color-muted);
    font-size: .9375rem;
    margin-bottom: 0;
}

/* ==========================================
   卖点三连
   ========================================== */
.features-section {
    background-color: var(--bg-base);
    padding: 4.5rem 0;
}
.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
}
.feature-main {
    background-color: var(--bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}
.feature-main:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.feature-side {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-top: 2rem;
}
.feature-item {
    background-color: var(--bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 1.75rem 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}
.feature-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.feature-num {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    margin-bottom: .75rem;
    letter-spacing: .02em;
}
.feature-main h3,
.feature-item h3 {
    font-size: 1.15rem;
    margin-bottom: .5rem;
}
.feature-main p,
.feature-item p {
    color: var(--color-muted);
    font-size: .9375rem;
    margin-bottom: 0;
    line-height: 1.8;
}

/* ==========================================
   场景演示
   ========================================== */
.showcase-section {
    background-color: #fff;
    padding: 4.5rem 0;
}
.showcase-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}
.showcase-row:last-child {
    margin-bottom: 0;
}
.showcase-img {
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    line-height: 0;
}
.showcase-img img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 400ms cubic-bezier(.22, .61, .36, 1);
}
.showcase-img:hover img {
    transform: scale(1.02);
}
.showcase-text h3 {
    font-size: 1.35rem;
    margin-bottom: .75rem;
}
.showcase-text p {
    color: var(--color-muted);
    line-height: 1.9;
    margin-bottom: 1rem;
}
.showcase-row.reverse .showcase-text {
    order: -1;
}

/* ==========================================
   社会认同
   ========================================== */
.proof-section {
    background-color: var(--bg-base);
    padding: 4.5rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.proof-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr 1fr;
    gap: 2.5rem;
    align-items: center;
}
.proof-metric {
    text-align: left;
}
.metric-number {
    font-family: var(--font-serif);
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: .5rem;
}
.metric-suffix {
    font-size: 1.6rem;
    color: var(--color-accent);
}
.proof-metric p {
    color: var(--color-muted);
    font-size: .875rem;
    margin-bottom: 0;
}
.proof-quote blockquote {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text);
    border-left: 3px solid var(--color-accent);
    padding-left: 1.25rem;
    margin-bottom: .75rem;
    font-style: italic;
}
.quote-author {
    color: var(--color-muted);
    font-size: .875rem;
    margin-bottom: 0;
}
.proof-partners {
    text-align: left;
}
.partners-label {
    font-size: .875rem;
    color: var(--color-muted);
    letter-spacing: .05em;
    margin-bottom: .75rem;
    text-transform: uppercase;
}
.partners-text {
    font-family: var(--font-serif);
    font-size: .9375rem;
    line-height: 2;
    color: var(--color-text);
    letter-spacing: .04em;
    margin-bottom: 0;
}

/* ==========================================
   最新信息 CMS 列表
   ========================================== */
.updates-section {
    background-color: #fff;
    padding: 4.5rem 0;
}
.updates-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.list-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    background-color: var(--bg-card);
    border: 1px solid var(--color-border);
    border-left: 3px solid transparent;
    border-radius: var(--radius-card);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-left-color var(--transition);
}
.list-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-left-color: var(--color-primary);
}
.list-main {
    flex: 1;
    min-width: 0;
}
.badge-cat {
    display: inline-block;
    font-size: .75rem;
    letter-spacing: .05em;
    color: var(--color-accent);
    background-color: var(--color-accent-light);
    border-radius: var(--radius-badge);
    padding: .15rem .6rem;
    margin-bottom: .35rem;
}
.list-card h3 {
    font-size: 1.05rem;
    margin-bottom: .25rem;
}
.list-card h3 a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition);
}
.list-card h3 a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}
.list-card p {
    color: var(--color-muted);
    font-size: .875rem;
    line-height: 1.7;
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.list-meta {
    flex-shrink: 0;
    text-align: right;
    font-size: .8125rem;
    color: var(--color-muted);
}
.list-meta time {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}
.list-empty {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-card);
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--color-muted);
    font-size: .9375rem;
}

/* ==========================================
   FAQ 手风琴
   ========================================== */
.faq-section {
    background-color: var(--bg-base);
    padding: 4.5rem 0;
}
.faq-list {
    max-width: 860px;
    margin: 0 auto;
}
.faq-item {
    border-bottom: 1px solid var(--color-border);
}
.faq-item:first-child {
    border-top: 1px solid var(--color-border);
}
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1.25rem 0;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    transition: color var(--transition);
}
.faq-question:hover {
    color: var(--color-primary);
}
.faq-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--color-muted);
    transition: transform var(--transition), color var(--transition);
    flex-shrink: 0;
    margin-left: 1rem;
    line-height: 1;
}
.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--color-primary);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 300ms cubic-bezier(.22, .61, .36, 1);
}
.faq-answer p {
    padding: 0 0 1.25rem;
    color: var(--color-muted);
    font-size: .9375rem;
    line-height: 1.85;
    margin-bottom: 0;
}

/* ==========================================
   CTA 横幅
   ========================================== */
.cta-banner {
    background-color: var(--color-primary);
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-banner::before {
    content: '';
    position: absolute;
    left: -80px;
    top: -80px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    border: 1px solid rgba(176, 141, 87, .3);
}
.cta-banner::after {
    content: '';
    position: absolute;
    right: -40px;
    bottom: -60px;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: rgba(176, 141, 87, .12);
}
.cta-banner .container {
    position: relative;
    z-index: 2;
}
.cta-banner h2 {
    color: #fff;
    font-size: clamp(1.5rem, 2.4vw, 2rem);
    margin-bottom: .5rem;
}
.cta-banner p {
    color: rgba(239, 234, 224, .85);
    font-size: .9375rem;
    margin-bottom: 1.5rem;
}

/* ==========================================
   页脚
   ========================================== */
.site-footer {
    background-color: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: 3.5rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 5fr 3fr 4fr;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}
.footer-brand .footer-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: .75rem;
}
.footer-brand p {
    font-size: .875rem;
    color: rgba(239, 234, 224, .75);
    line-height: 1.8;
    margin-bottom: 0;
}
.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: .875rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: .05em;
    margin-bottom: 1rem;
}
.footer-links ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.footer-links ul li {
    margin-bottom: .5rem;
}
.footer-links ul a {
    color: rgba(239, 234, 224, .75);
    font-size: .875rem;
    text-decoration: none;
    transition: color var(--transition);
}
.footer-links ul a:hover {
    color: var(--color-accent);
    text-decoration: none;
}
.footer-contact p {
    font-size: .875rem;
    color: rgba(239, 234, 224, .75);
    margin-bottom: .5rem;
}
.footer-contact a {
    color: var(--color-accent);
    text-decoration: none;
}
.footer-contact a:hover {
    text-decoration: underline;
}
.footer-bottom {
    border-top: 1px solid rgba(239, 234, 224, .15);
    padding-top: 1.5rem;
    text-align: center;
}
.footer-bottom p {
    font-size: .8125rem;
    color: rgba(239, 234, 224, .5);
    margin-bottom: 0;
}

/* ==========================================
   底部固定转化条
   ========================================== */
.bottom-cta-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1020;
    background-color: var(--color-primary);
    height: 64px;
    display: flex;
    align-items: center;
    box-shadow: 0 -2px 12px rgba(26, 26, 24, .15);
}
.bar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
}
.bar-text {
    color: #fff;
    font-size: .9375rem;
    font-weight: 500;
    white-space: nowrap;
}
.bar-actions {
    display: flex;
    align-items: center;
    gap: .75rem;
}
.bar-close {
    background: none;
    border: none;
    color: rgba(239, 234, 224, .7);
    font-size: 1rem;
    cursor: pointer;
    padding: .5rem;
    transition: color var(--transition);
}
.bar-close:hover {
    color: #fff;
}

/* ==========================================
   滚动进入动画
   ========================================== */
.reveal {
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 400ms cubic-bezier(.22, .61, .36, 1), transform 400ms cubic-bezier(.22, .61, .36, 1);
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   响应式
   ========================================== */
@media (max-width: 991.98px) {
    .section {
        padding: 3.5rem 0;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .feature-side {
        padding-top: 0;
    }
    .showcase-row {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .showcase-row.reverse .showcase-text {
        order: 0;
    }
    .showcase-img img {
        height: 240px;
    }
    .proof-grid {
        grid-template-columns: 1fr 1.2fr;
        gap: 2rem;
    }
    .proof-partners {
        grid-column: 1 / -1;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
    .header-search {
        display: none;
    }
    .header-cta {
        display: none;
    }
    .navbar-toggler {
        display: inline-flex;
    }
    .mobile-search-wrap {
        display: block;
    }
    .header-search-mobile {
        position: relative;
    }
    .header-search-mobile input {
        width: 100%;
        height: 40px;
        padding: 0 2.4rem 0 .875rem;
        font-size: .875rem;
        background-color: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-btn);
        transition: border-color var(--transition), box-shadow var(--transition);
    }
    .header-search-mobile input:focus {
        outline: none;
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px rgba(30, 59, 47, .12);
    }
    .header-search-mobile .search-icon {
        position: absolute;
        right: .75rem;
        top: 50%;
        transform: translateY(-50%);
        color: var(--color-muted);
        font-size: .875rem;
        pointer-events: none;
    }
    .mobile-search-wrap .header-cta-mobile {
        margin-top: .75rem;
    }
    .mobile-search-wrap .header-cta-mobile .btn {
        width: 100%;
    }
}

@media (max-width: 767.98px) {
    .hero {
        min-height: 70vh;
        padding: 3.5rem 0;
    }
    .hero h1 {
        font-size: 1.7rem;
    }
    .hero h1 .hero-subline {
        font-size: 1.2rem;
    }
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .section {
        padding: 3rem 0;
    }
    .features-grid {
        gap: 1rem;
    }
    .feature-main,
    .feature-item {
        padding: 1.5rem;
    }
    .proof-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }
    .proof-partners {
        grid-column: auto;
    }
    .list-card {
        flex-direction: column;
        align-items: flex-start;
        gap: .75rem;
        padding: 1rem 1.25rem;
    }
    .list-meta {
        text-align: left;
        width: 100%;
        font-size: .75rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }
    .footer-brand {
        grid-column: auto;
    }
    .bottom-cta-bar {
        height: 50px;
    }
    .bar-text {
        font-size: .8125rem;
    }
    .bar-actions .btn {
        padding: .3rem .875rem;
        font-size: .8125rem;
    }
    .bar-close {
        display: none;
    }
    .header-top {
        height: 56px;
    }
    .header-nav {
        height: auto;
        padding: .4rem 0;
    }
    .nav-tabs-pill {
        gap: .4rem;
    }
    .nav-tabs-pill .nav-link {
        padding: .25rem .875rem;
        font-size: .8125rem;
    }
}

@media (max-width: 575.98px) {
    .showcase-row {
        margin-bottom: 2.5rem;
    }
    .showcase-img img {
        height: 200px;
    }
    .metric-number {
        font-size: 2.6rem;
    }
    .faq-question {
        font-size: .9375rem;
    }
    .footer-bottom p {
        font-size: .75rem;
    }
}

@media (min-width: 992px) {
    .mobile-search-wrap {
        display: none !important;
    }
}

/* roulang page: category1 */
:root {
            --bg: #F5F3EF;
            --primary: #1E3B2F;
            --primary-dark: #163027;
            --accent: #B08D57;
            --text: #1A1A18;
            --text-secondary: #5C5A55;
            --border: #E5E0D6;
            --white: #FFFFFF;
            --footer-bg: #16281F;
            --footer-text: #EFEAE0;
            --radius: 8px;
            --radius-sm: 4px;
            --shadow: 0 1px 2px rgba(26,26,18,.04), 0 4px 12px rgba(26,26,18,.06);
            --shadow-hover: 0 2px 4px rgba(26,26,18,.06), 0 10px 24px rgba(26,26,18,.10);
            --font-serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-serif);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
        }

        h1 {
            font-size: clamp(2rem, 3.4vw, 2.8rem);
            letter-spacing: -0.01em;
        }

        h2 {
            font-size: clamp(1.5rem, 2.4vw, 2rem);
            letter-spacing: -0.01em;
            margin-bottom: .5rem;
        }

        h3 {
            font-size: 1.15rem;
            letter-spacing: 0;
        }

        p {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        ul {
            padding-left: 0;
            list-style: none;
            margin-bottom: 0;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .btn {
            border-radius: var(--radius-sm);
            padding: .65rem 1.6rem;
            font-size: .95rem;
            font-weight: 500;
            transition: all .2s ease;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
        }

        .btn-primary:active {
            transform: scale(.98);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .btn-light:hover,
        .btn-light:focus {
            background-color: #f0ece5;
            border-color: #f0ece5;
            color: var(--primary-dark);
        }

        .btn-light:active {
            transform: scale(.98);
        }

        .btn-lg {
            padding: .8rem 2.2rem;
            font-size: 1rem;
        }

        .section-pad {
            padding: 4.5rem 0;
        }

        .section-head {
            max-width: 640px;
            margin-bottom: 2.5rem;
        }

        .section-head .section-kicker {
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: .35rem;
            display: inline-block;
        }

        .section-head p {
            font-size: .95rem;
            margin-top: .5rem;
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background-color: transparent;
            transition: background-color .2s ease, box-shadow .2s ease;
        }

        .site-header.is-scrolled {
            background-color: rgba(245, 243, 239, .92);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
            box-shadow: 0 1px 0 var(--border);
        }

        .header-top {
            background-color: transparent;
            border-bottom: 1px solid rgba(229, 224, 214, .5);
        }

        .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
            gap: 1rem;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: .65rem;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand:hover {
            text-decoration: none;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background-color: var(--primary);
            color: var(--accent);
            font-weight: 700;
            font-size: .8rem;
            font-family: var(--font-serif);
            border-radius: 6px;
            letter-spacing: .02em;
        }

        .brand-text {
            font-family: var(--font-serif);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .01em;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: .8rem;
        }

        .header-search {
            position: relative;
            width: 220px;
        }

        .header-search input {
            width: 100%;
            height: 38px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background-color: #fff;
            padding: 0 36px 0 12px;
            font-size: .875rem;
            color: var(--text);
            transition: border-color .2s, box-shadow .2s;
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 59, 47, .12);
        }

        .header-search .search-icon {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: .8rem;
            pointer-events: none;
        }

        .header-cta {
            padding: .45rem 1.1rem;
            font-size: .875rem;
            white-space: nowrap;
        }

        .navbar-toggler {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 38px;
            height: 38px;
            font-size: .95rem;
            color: var(--primary);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: border-color .2s, background-color .2s;
        }

        .navbar-toggler:hover {
            border-color: var(--primary);
            background-color: var(--white);
        }

        .header-nav {
            background-color: transparent;
            border-bottom: 1px solid transparent;
        }

        .nav-tabs-pill {
            display: flex;
            align-items: center;
            gap: .5rem;
            min-height: 48px;
            overflow-x: auto;
            scrollbar-width: none;
            flex-wrap: nowrap;
            padding: .4rem 0;
        }

        .nav-tabs-pill::-webkit-scrollbar {
            display: none;
        }

        .nav-tabs-pill .nav-item {
            flex-shrink: 0;
        }

        .nav-tabs-pill .nav-link {
            display: inline-block;
            padding: .35rem 1.1rem;
            border-radius: 20px;
            font-size: .875rem;
            font-weight: 500;
            color: var(--text);
            background-color: #e8e4dc;
            border: 1px solid transparent;
            transition: background-color .2s, color .2s;
            white-space: nowrap;
        }

        .nav-tabs-pill .nav-link:hover,
        .nav-tabs-pill .nav-link:focus-visible {
            color: var(--primary);
            background-color: #ddd8cd;
            text-decoration: none;
        }

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

        .mobile-search-wrap {
            display: none;
            background-color: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: .8rem 0;
        }

        .mobile-search-wrap .header-search-mobile {
            position: relative;
            width: 100%;
            margin-bottom: .6rem;
        }

        .mobile-search-wrap .header-search-mobile input {
            width: 100%;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background-color: #fff;
            padding: 0 36px 0 12px;
            font-size: .875rem;
        }

        .mobile-search-wrap .header-search-mobile input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 59, 47, .12);
        }

        .mobile-search-wrap .header-search-mobile .search-icon {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: .8rem;
            pointer-events: none;
        }

        .mobile-search-wrap .header-cta-mobile .btn {
            width: 100%;
        }

        /* ========== Category Hero ========== */
        .category-hero {
            position: relative;
            padding: 5rem 0 4rem;
            background-color: var(--bg);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: .18;
            z-index: 0;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -120px;
            width: 300px;
            height: 300px;
            border: 1px solid rgba(176, 141, 87, .35);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }

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

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-size: .875rem;
            color: var(--text-secondary);
            margin-bottom: 1.8rem;
        }

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

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

        .breadcrumb-custom .divider {
            color: var(--border);
        }

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

        .category-hero h1 {
            margin-bottom: 1rem;
        }

        .category-desc {
            font-size: 1rem;
            line-height: 2;
            color: var(--text-secondary);
            max-width: 760px;
            margin-bottom: 0;
        }

        /* ========== Info Overview ========== */
        .info-overview {
            padding: 4.5rem 0;
        }

        .info-card {
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.8rem 1.8rem 1.6rem;
            height: 100%;
            box-shadow: var(--shadow);
            transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
        }

        .info-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .info-card-main {
            padding: 2.2rem 2rem;
        }

        .info-card-sub {
            padding: 1.5rem 1.6rem;
        }

        .info-card-num {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent);
            display: block;
            margin-bottom: .8rem;
            line-height: 1;
        }

        .info-card h3 {
            margin-bottom: .6rem;
            font-size: 1.05rem;
        }

        .info-card p {
            font-size: .9rem;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .info-card-sub {
            margin-bottom: 1.5rem;
        }

        .info-card-sub:last-child {
            margin-bottom: 0;
        }

        .info-card-offset {
            margin-top: 2rem;
        }

        @media (min-width: 992px) {
            .info-card-sub {
                margin-bottom: 0;
            }
        }

        /* ========== Content Modules ========== */
        .content-modules {
            padding: 4.5rem 0;
            background-color: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .content-module {
            margin-bottom: 3.5rem;
        }

        .content-module:last-child {
            margin-bottom: 0;
        }

        .content-media {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            background-color: #e8e4dc;
        }

        .content-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            transition: transform .3s ease;
        }

        .content-media:hover img {
            transform: scale(1.02);
        }

        .content-text {
            padding: 1rem 0;
        }

        .content-text .content-label {
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .1em;
            text-transform: uppercase;
            color: var(--accent);
            display: block;
            margin-bottom: .6rem;
        }

        .content-text h2 {
            font-size: clamp(1.3rem, 2vw, 1.7rem);
            margin-bottom: 1rem;
        }

        .content-text p {
            font-size: .95rem;
            line-height: 1.9;
            margin-bottom: 1rem;
        }

        .content-list {
            margin-top: 1.2rem;
        }

        .content-list li {
            position: relative;
            padding-left: 1.2rem;
            font-size: .9rem;
            color: var(--text-secondary);
            margin-bottom: .5rem;
            line-height: 1.7;
        }

        .content-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: .7em;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background-color: var(--accent);
        }

        .content-link {
            display: inline-block;
            font-size: .9rem;
            font-weight: 500;
            color: var(--primary);
            border-bottom: 1px solid transparent;
            transition: border-color .2s;
        }

        .content-link:hover {
            border-color: var(--primary);
            text-decoration: none;
        }

        /* ========== Featured ========== */
        .featured-section {
            padding: 4.5rem 0;
        }

        .featured-card {
            background-color: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow);
            transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
        }

        .featured-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .featured-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: #e8e4dc;
        }

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

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

        .featured-body {
            padding: 1.25rem 1.4rem 1.4rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .featured-tag {
            align-self: flex-start;
            font-size: .75rem;
            font-weight: 600;
            letter-spacing: .04em;
            color: var(--accent);
            background-color: rgba(176, 141, 87, .12);
            padding: .18rem .6rem;
            border-radius: var(--radius-sm);
            margin-bottom: .7rem;
        }

        .featured-body h3 {
            font-size: 1rem;
            line-height: 1.45;
            margin-bottom: .45rem;
        }

        .featured-body h3 a {
            color: var(--text);
            text-decoration: none;
            transition: color .2s;
        }

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

        .featured-body .featured-desc {
            font-size: .85rem;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: .8rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .featured-meta {
            font-size: .8rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: .8rem;
        }

        .featured-meta .time {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
        }

        /* ========== Official Note ========== */
        .official-note {
            padding: 4.5rem 0;
            background-color: var(--primary);
            color: #fff;
        }

        .note-inner {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .note-text h2 {
            color: #fff;
            margin-bottom: .8rem;
        }

        .note-text p {
            color: rgba(239, 234, 224, .8);
            font-size: .95rem;
            line-height: 1.9;
            margin-bottom: 0;
        }

        .note-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        .note-item {
            background-color: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius);
            padding: 1.2rem 1.2rem;
            text-align: center;
        }

        .note-item strong {
            display: block;
            font-family: var(--font-serif);
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: .2rem;
            line-height: 1.2;
        }

        .note-item span {
            font-size: .8rem;
            color: rgba(239, 234, 224, .8);
            letter-spacing: .04em;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 4.5rem 0;
        }

        .faq-list {
            max-width: 840px;
        }

        .faq-item {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-item + .faq-item {
            border-top: none;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            background: none;
            border: none;
            padding: 1.2rem 0;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: color .2s;
        }

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

        .faq-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border: 1px solid var(--border);
            border-radius: 50%;
            font-size: .9rem;
            color: var(--text-secondary);
            transition: transform .2s ease, color .2s, border-color .2s;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
            border-color: var(--primary);
        }

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

        .faq-answer-inner {
            padding-bottom: 1.2rem;
            font-size: .95rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }

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

        /* ========== CTA Banner ========== */
        .cta-banner {
            padding: 4.5rem 0;
            background-color: var(--primary-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            left: 10%;
            top: -60px;
            width: 180px;
            height: 180px;
            border: 1px solid rgba(176, 141, 87, .25);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.6vw, 2.2rem);
            margin-bottom: .5rem;
        }

        .cta-inner p {
            color: rgba(239, 234, 224, .75);
            font-size: 1rem;
            margin-bottom: 1.8rem;
        }

        .cta-inner .btn {
            min-width: 200px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--footer-bg);
            color: var(--footer-text);
            padding: 4rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 5fr 3fr 4fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }

        .footer-logo {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--footer-text);
            margin-bottom: .8rem;
        }

        .footer-brand p {
            color: rgba(239, 234, 224, .7);
            font-size: .875rem;
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 0;
        }

        .footer-links h4,
        .footer-contact h4 {
            color: var(--footer-text);
            font-size: .9rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: .05em;
        }

        .footer-links li {
            margin-bottom: .45rem;
        }

        .footer-links a {
            color: rgba(239, 234, 224, .75);
            font-size: .875rem;
            transition: color .2s;
        }

        .footer-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-contact p {
            color: rgba(239, 234, 224, .75);
            font-size: .875rem;
            margin-bottom: .4rem;
        }

        .footer-contact a {
            color: rgba(239, 234, 224, .75);
        }

        .footer-contact a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(239, 234, 224, .12);
            padding: 1.2rem 0;
            text-align: center;
        }

        .footer-bottom p {
            color: rgba(239, 234, 224, .55);
            font-size: .8rem;
            margin-bottom: 0;
        }

        /* ========== Fixed Bar ========== */
        .fixed-bar {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1020;
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 -2px 12px rgba(26, 26, 18, .12);
            transform: translateY(0);
            transition: transform .3s ease;
        }

        .fixed-bar.hidden {
            transform: translateY(110%);
        }

        .fixed-bar-inner {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 64px;
            padding-top: .6rem;
            padding-bottom: .6rem;
            gap: 1rem;
        }

        .fixed-bar-text {
            color: #fff;
            font-size: .95rem;
            font-weight: 500;
            margin-bottom: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .fixed-bar .btn-fixed {
            padding: .5rem 1.4rem;
            font-size: .875rem;
            border-radius: var(--radius-sm);
            white-space: nowrap;
        }

        .fixed-bar-close {
            position: absolute;
            right: 0;
            top: -12px;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background-color: #fff;
            color: var(--text-secondary);
            font-size: .7rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background-color .2s, color .2s, border-color .2s;
        }

        .fixed-bar-close:hover {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        @media (max-width: 767px) {
            .fixed-bar-inner {
                min-height: 50px;
            }

            .fixed-bar-text {
                font-size: .8rem;
            }

            .fixed-bar .btn-fixed {
                font-size: .8rem;
                padding: .4rem 1rem;
            }
        }

        /* ========== Responsive ========== */
        @media (max-width: 991px) {
            .header-search {
                display: none;
            }

            .navbar-toggler {
                display: inline-flex;
            }

            .mobile-search-wrap.open {
                display: block;
            }

            .note-inner {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

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

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

        @media (max-width: 767px) {
            .section-pad,
            .info-overview,
            .content-modules,
            .featured-section,
            .official-note,
            .faq-section,
            .cta-banner {
                padding: 3rem 0;
            }

            .header-top {
                padding: .5rem 0;
            }

            .header-row {
                min-height: 56px;
            }

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

            .brand-mark {
                width: 30px;
                height: 30px;
                font-size: .7rem;
            }

            .header-cta {
                display: none;
            }

            .header-nav {
                overflow-x: auto;
            }

            .nav-tabs-pill {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding: .3rem 0;
            }

            .category-hero {
                padding: 3rem 0 2.5rem;
            }

            .category-hero h1 {
                font-size: 1.7rem;
            }

            .category-desc {
                font-size: .9rem;
                line-height: 1.9;
            }

            .info-card-main {
                padding: 1.6rem 1.4rem;
            }

            .info-card-sub {
                padding: 1.3rem 1.4rem;
                margin-bottom: 1rem;
            }

            .info-card-offset {
                margin-top: 0;
            }

            .content-text {
                padding-top: 1.2rem;
            }

            .featured-card {
                margin-bottom: .5rem;
            }

            .featured-section .row > [class*="col-"] {
                margin-bottom: 1rem;
            }

            .note-stats {
                grid-template-columns: 1fr 1fr;
                gap: .8rem;
            }

            .note-item {
                padding: 1rem .8rem;
            }

            .note-item strong {
                font-size: 1.2rem;
            }

            .faq-question {
                font-size: .9rem;
                padding: 1rem 0;
            }

            .faq-answer-inner {
                font-size: .875rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-brand {
                grid-column: auto;
            }

            .footer-bottom {
                padding: 1rem 0;
            }

            .cta-inner .btn {
                width: 100%;
                max-width: 320px;
            }
        }

        @media (max-width: 520px) {
            .header-row {
                gap: .5rem;
            }

            .header-actions {
                gap: .5rem;
            }

            .nav-tabs-pill .nav-link {
                font-size: .82rem;
                padding: .3rem .9rem;
            }

            .fixed-bar-text {
                max-width: 50%;
            }

            .fixed-bar .btn-fixed {
                max-width: 45%;
                overflow: hidden;
                text-overflow: ellipsis;
            }
        }

/* roulang page: article */
:root {
    --bg: #F5F3EF;
    --bg-soft: #E8E4DC;
    --primary: #1E3B2F;
    --primary-dark: #163027;
    --accent: #B08D57;
    --text: #1A1A18;
    --text-muted: #5C5A55;
    --border: #E5E0D6;
    --card-bg: #FFFFFF;
    --footer-bg: #16281F;
    --footer-text: #EFEAE0;
    --radius: 8px;
    --radius-sm: 4px;
    --radius-pill: 20px;
    --shadow: 0 1px 2px rgba(26,26,24,.04), 0 4px 12px rgba(26,26,24,.06);
    --shadow-hover: 0 2px 4px rgba(26,26,24,.06), 0 10px 24px rgba(26,26,24,.10);
    --font-serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

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

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text);
    background: var(--bg);
    padding-bottom: 64px;
    -webkit-font-smoothing: antialiased;
}

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

a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-dark); text-decoration: underline; }

ul, ol { margin: 0; padding: 0; }

.container { max-width: 1200px; }

@media (min-width: 1400px) {
    .container { max-width: 1200px; }
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(245, 243, 239, .92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: background .2s ease, box-shadow .2s ease, border-color .2s ease;
    border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
    background: rgba(245, 243, 239, .96);
    border-bottom-color: var(--border);
    box-shadow: 0 2px 12px rgba(26, 26, 24, .05);
}

.header-top { border-bottom: 1px solid var(--border); }

.header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    text-decoration: none;
    flex-shrink: 0;
}

.brand:hover { text-decoration: none; }

.brand-mark {
    width: 34px;
    height: 34px;
    background: var(--primary);
    color: var(--accent);
    display: grid;
    place-items: center;
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: .875rem;
    border-radius: 4px;
    letter-spacing: .02em;
}

.brand-text {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--text);
    letter-spacing: .01em;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.header-search {
    position: relative;
    margin-right: .35rem;
}

.header-search input {
    width: 224px;
    height: 38px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #fff;
    padding: 0 40px 0 1rem;
    font-size: .875rem;
    font-family: var(--font-sans);
    color: var(--text);
    transition: border-color .2s ease, box-shadow .2s ease;
}

.header-search input::placeholder { color: #9C968C; }

.header-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 59, 47, .12);
}

.search-icon {
    position: absolute;
    right: .95rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: .8125rem;
    pointer-events: none;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    border-radius: var(--radius-sm);
    padding: .55rem 1.5rem;
    font-size: .875rem;
    font-weight: 600;
    font-family: var(--font-sans);
    transition: all .2s ease;
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
    box-shadow: 0 0 0 3px rgba(30, 59, 47, .15);
}

.btn-primary:active { transform: scale(.98); background: var(--primary-dark); border-color: var(--primary-dark); }

.btn-sm { padding: .35rem 1rem; font-size: .8125rem; }

.navbar-toggler {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: .4rem .65rem;
    color: var(--text);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.navbar-toggler:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(30, 59, 47, .04);
}

.navbar-toggler:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(30, 59, 47, .12);
}

.header-nav { border-bottom: 1px solid var(--border); }

.nav-tabs-pill {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: .5rem;
    height: 48px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.nav-tabs-pill::-webkit-scrollbar { display: none; }

.nav-tabs-pill .nav-item { flex: 0 0 auto; }

.nav-tabs-pill .nav-link {
    display: inline-block;
    padding: .38rem 1.15rem;
    border-radius: var(--radius-pill);
    background: var(--bg-soft);
    color: var(--text-muted);
    font-size: .875rem;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}

.nav-tabs-pill .nav-link:hover {
    background: rgba(30, 59, 47, .1);
    color: var(--primary);
    text-decoration: none;
}

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

.mobile-search-wrap {
    display: none;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}

.mobile-search-wrap.open { display: block; }

.header-search-mobile {
    position: relative;
    width: 100%;
}

.header-search-mobile input {
    width: 100%;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #fff;
    padding: 0 44px 0 1rem;
    font-size: .9375rem;
    font-family: var(--font-sans);
    color: var(--text);
    transition: border-color .2s ease, box-shadow .2s ease;
}

.header-search-mobile input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 59, 47, .12);
}

.header-search-mobile .search-icon {
    right: 1rem;
}

.header-cta-mobile {
    margin-top: .75rem;
    text-align: center;
}

.header-cta-mobile .btn { width: 100%; }

/* ===== 文章详情 ===== */
.article-detail {
    padding: 3rem 0 1rem;
    background: var(--bg);
}

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

.breadcrumb-nav {
    font-size: .8125rem;
    color: var(--text-muted);
    margin-bottom: 1.75rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .4rem;
}

.breadcrumb-nav a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color .2s ease;
}

.breadcrumb-nav a:hover {
    color: var(--primary);
    text-decoration: underline;
}

.breadcrumb-nav .sep {
    color: #C4BEB2;
    margin: 0 .15rem;
}

.breadcrumb-nav .current {
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 240px;
}

.article-title {
    font-family: var(--font-serif);
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -.01em;
    margin: 0 0 1.25rem;
    color: var(--text);
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .9rem;
    font-size: .875rem;
    color: var(--text-muted);
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

.article-meta i {
    margin-right: .3rem;
    color: #A39C90;
    font-size: .8125rem;
}

.badge-soft {
    display: inline-block;
    background: rgba(176, 141, 87, .12);
    color: var(--accent);
    padding: .2rem .65rem;
    border-radius: 4px;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .04em;
}

.article-content {
    font-size: 1rem;
    line-height: 1.9;
    color: #2A2A28;
    letter-spacing: .02em;
}

.article-content > *:first-child { margin-top: 0; }

.article-content p {
    margin-bottom: 1.35rem;
    line-height: 1.9;
}

.article-content h2 {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 700;
    margin: 2.2rem 0 1rem;
    padding-left: .7rem;
    border-left: 3px solid var(--accent);
    line-height: 1.35;
}

.article-content h3 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    margin: 1.7rem 0 .75rem;
    line-height: 1.4;
}

.article-content h4 {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    margin: 1.5rem 0 .6rem;
}

.article-content ul,
.article-content ol {
    margin: 0 0 1.35rem;
    padding-left: 1.4rem;
}

.article-content li {
    margin-bottom: .45rem;
    line-height: 1.85;
}

.article-content blockquote {
    border-left: 3px solid var(--accent);
    background: rgba(176, 141, 87, .06);
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
    border-radius: 0 6px 6px 0;
    color: var(--text-muted);
    font-style: italic;
}

.article-content blockquote p { margin-bottom: 0; }

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

.article-content a:hover { color: var(--primary-dark); text-decoration-thickness: 2px; }

.article-content img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin: 1.25rem 0;
}

.article-content figure {
    margin: 1.5rem 0;
}

.article-content figure img {
    margin-bottom: .5rem;
}

.article-content figcaption {
    font-size: .8125rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.5;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: .925rem;
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.article-content th,
.article-content td {
    border: 1px solid var(--border);
    padding: .65rem .85rem;
    text-align: left;
    line-height: 1.6;
}

.article-content th {
    background: var(--bg-soft);
    font-weight: 600;
    font-size: .875rem;
}

.article-content pre {
    background: #1A1A18;
    color: #EFEAE0;
    padding: 1.25rem;
    border-radius: 6px;
    overflow-x: auto;
    font-size: .875rem;
    line-height: 1.7;
    margin: 1.5rem 0;
}

.article-content code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    background: rgba(30, 59, 47, .08);
    color: var(--primary);
    padding: .15rem .35rem;
    border-radius: 3px;
    font-size: .875em;
}

.article-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    padding-top: 1.5rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border);
}

.tag {
    display: inline-block;
    background: rgba(176, 141, 87, .1);
    color: var(--accent);
    padding: .25rem .7rem;
    border-radius: 4px;
    font-size: .75rem;
    font-weight: 500;
    letter-spacing: .04em;
}

.tag:hover {
    background: rgba(176, 141, 87, .2);
    color: #8A6C3F;
    text-decoration: none;
}

/* ===== 相关推荐 ===== */
.related-section {
    padding: 3.5rem 0 2rem;
    background: var(--bg);
}

.section-head {
    margin-bottom: 2rem;
}

.section-head h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.4rem, 2.2vw, 1.8rem);
    font-weight: 700;
    margin: 0;
    padding-left: .8rem;
    border-left: 3px solid var(--accent);
    line-height: 1.3;
}

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

.related-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    height: 100%;
}

.related-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-left: 3px solid var(--primary);
}

.related-card .thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: var(--bg-soft);
}

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

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

.related-info {
    padding: 1.1rem 1.25rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: .4rem;
    flex: 1;
}

.related-info h3 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.45;
}

.related-info h3 a {
    color: var(--text);
    text-decoration: none;
    transition: color .2s ease;
}

.related-info h3 a:hover { color: var(--primary); text-decoration: none; }

.related-info time {
    font-size: .8125rem;
    color: var(--text-muted);
    margin-top: auto;
    padding-top: .3rem;
}

.article-back {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 1.5rem;
    font-size: .875rem;
}

.article-back a {
    color: var(--text-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    transition: color .2s ease;
}

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

.article-back i { font-size: .8125rem; }

/* ===== 空状态 ===== */
.empty-section {
    padding: 5rem 0;
    min-height: 45vh;
}

.empty-box {
    max-width: 420px;
    margin: 0 auto;
    text-align: center;
    background: #fff;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 3rem 1.5rem;
}

.empty-box p {
    font-size: 1.0625rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

/* ===== CTA 横幅 ===== */
.cta-banner {
    background: var(--primary);
    color: #fff;
    padding: 3.5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: "";
    position: absolute;
    right: -80px;
    top: 50%;
    transform: translateY(-50%);
    width: 240px;
    height: 240px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .12);
    pointer-events: none;
}

.cta-banner::after {
    content: "";
    position: absolute;
    left: -60px;
    bottom: -80px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, .08);
    pointer-events: none;
}

.cta-banner .container { position: relative; z-index: 1; }

.cta-banner h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 2.4vw, 2rem);
    font-weight: 700;
    color: #fff;
    margin-bottom: .6rem;
}

.cta-banner p {
    color: rgba(255, 255, 255, .8);
    margin-bottom: 1.5rem;
    font-size: .9375rem;
}

.btn-light-custom {
    display: inline-block;
    background: #fff;
    border: 1px solid #fff;
    color: var(--primary);
    padding: .6rem 1.9rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: .9375rem;
    transition: all .2s ease;
    text-decoration: none;
}

.btn-light-custom:hover {
    background: rgba(255, 255, 255, .9);
    border-color: rgba(255, 255, 255, .9);
    color: var(--primary-dark);
    text-decoration: none;
}

.btn-light-custom:active { transform: scale(.98); }

.btn-light-custom:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, .3);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 5fr 3fr 4fr;
    gap: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: .6rem;
}

.footer-brand p {
    font-size: .875rem;
    line-height: 1.75;
    color: rgba(239, 234, 224, .7);
    margin: 0;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-serif);
    font-size: .9375rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
    letter-spacing: .05em;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.footer-links a {
    color: rgba(239, 234, 224, .7);
    text-decoration: none;
    font-size: .875rem;
    transition: color .2s ease;
}

.footer-links a:hover {
    color: var(--accent);
    text-decoration: none;
}

.footer-contact p {
    color: rgba(239, 234, 224, .7);
    font-size: .875rem;
    line-height: 1.7;
    margin-bottom: .4rem;
}

.footer-contact a {
    color: rgba(239, 234, 224, .8);
    text-decoration: none;
    transition: color .2s ease;
}

.footer-contact a:hover {
    color: var(--accent);
    text-decoration: underline;
}

.footer-bottom {
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    margin: 0;
    font-size: .8125rem;
    color: rgba(239, 234, 224, .45);
}

/* ===== 底部固定条 ===== */
.fixed-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1020;
    height: 64px;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    box-shadow: 0 -3px 14px rgba(0, 0, 0, .12);
    gap: 1rem;
}

.fixed-cta p {
    margin: 0;
    font-size: .875rem;
    color: rgba(255, 255, 255, .92);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.fixed-cta .btn-cta {
    background: #fff;
    border: none;
    color: var(--primary);
    padding: .45rem 1.3rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: .875rem;
    text-decoration: none;
    transition: all .2s ease;
    flex-shrink: 0;
}

.fixed-cta .btn-cta:hover {
    background: rgba(255, 255, 255, .9);
    color: var(--primary-dark);
    text-decoration: none;
}

.fixed-cta .btn-cta:active { transform: scale(.97); }

.fixed-cta .cta-close {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, .5);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 .25rem;
    transition: color .2s ease, transform .2s ease;
    flex-shrink: 0;
}

.fixed-cta .cta-close:hover {
    color: #fff;
    transform: rotate(90deg);
}

.fixed-cta .cta-close:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, .25);
    border-radius: 4px;
}

/* ===== 动效 ===== */
.js .reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity .4s ease, transform .4s cubic-bezier(.22, .61, .36, 1);
}

.js .reveal.visible {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
}

/* ===== 响应式 ===== */
@media (min-width: 992px) {
    .mobile-search-wrap { display: none !important; }
}

@media (max-width: 991.98px) {
    .navbar-toggler { display: inline-flex; align-items: center; justify-content: center; }
    .header-search { display: none; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767.98px) {
    body { padding-bottom: 50px; }

    .header-row { height: 58px; }
    .header-cta { display: none; }
    .brand-text { font-size: 1rem; }
    .brand-mark { width: 30px; height: 30px; font-size: .8125rem; }
    .header-nav { height: auto; }
    .nav-tabs-pill { height: 44px; gap: .4rem; }

    .article-detail { padding: 1.75rem 0 .5rem; }
    .article-title { font-size: 1.6rem; }
    .article-meta { gap: .6rem; font-size: .8125rem; }
    .breadcrumb-nav .current { max-width: 160px; }

    .article-content { font-size: .9375rem; }
    .article-content h2 { font-size: 1.2rem; }
    .article-content h3 { font-size: 1.06rem; }
    .article-content table { font-size: .8125rem; }
    .article-content th,
    .article-content td { padding: .45rem .55rem; }

    .related-section { padding: 2.25rem 0 1.25rem; }
    .related-grid { grid-template-columns: 1fr; gap: 1rem; }
    .related-card .thumb { aspect-ratio: 16 / 8; }

    .article-back { flex-direction: column; gap: .6rem; }

    .cta-banner { padding: 2.5rem 0; }
    .cta-banner h2 { font-size: 1.4rem; }
    .cta-banner p { font-size: .875rem; }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
        padding-bottom: 1.5rem;
    }
    .footer-brand p { max-width: 100%; }

    .fixed-cta { height: 50px; padding: 0 1rem; }
    .fixed-cta p { font-size: .8125rem; max-width: 50%; }
    .fixed-cta .btn-cta { padding: .38rem 1rem; font-size: .8125rem; }

    .empty-section { padding: 3rem 0; }
}

@media (max-width: 575.98px) {
    .header-search input { width: 180px; }
    .nav-tabs-pill .nav-link { padding: .34rem 1rem; font-size: .8125rem; }
    .related-card .thumb { aspect-ratio: 16 / 9; }
}