/* roulang page: index */
:root {
    --ink: #111418;
    --acid: #D7FF3E;
    --cream: #F4F2ED;
    --ash: #C9CDD4;
    --text-main: #1B1E22;
    --text-sub: #5C6370;
    --text-on-dark: #F5F6F8;
    --text-on-dark-sub: #A0A6B2;
    --card-radius: 16px;
    --img-radius: 8px;
    --shadow-1: 0 8px 30px rgba(17, 20, 24, 0.06);
    --shadow-2: 0 16px 48px rgba(17, 20, 24, 0.14);
    --gap-section: 96px;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--cream);
    color: var(--text-main);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1); }
img { max-width: 100%; display: block; }
button { font-family: var(--font-sans); cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: var(--font-sans); }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 32px; }
.section { padding: 96px 0; }
.section-head { margin-bottom: 48px; }
.section-head .pre {
    display: block;
    width: 20px;
    height: 3px;
    background: var(--acid);
    margin-bottom: 16px;
}
.section-head h2 {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text-main);
    margin-bottom: 12px;
    line-height: 1.3;
}
.section-head .sub {
    font-size: 14px;
    color: var(--text-sub);
    max-width: 480px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    border-radius: 100px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
    line-height: 1.4;
    white-space: nowrap;
}
.btn-primary {
    background: var(--acid);
    color: var(--ink);
}
.btn-primary:hover {
    background: #E0FF6E;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(215, 255, 62, 0.25);
}
.btn-primary .arrow {
    margin-left: 8px;
    transition: transform 0.25s;
}
.btn-primary:hover .arrow { transform: translateX(4px); }
.btn-outline {
    border: 1px solid var(--ash);
    color: var(--text-main);
    background: transparent;
}
.btn-outline:hover {
    border-color: var(--acid);
    color: var(--text-main);
    transform: translateY(-2px);
}
.btn-outline-light {
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: #fff;
    background: transparent;
}
.btn-outline-light:hover {
    border-color: var(--acid);
    color: var(--acid);
    transform: translateY(-2px);
}
.btn-sm {
    padding: 8px 20px;
    font-size: 13px;
    height: 36px;
}

/* Header Navigation */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    z-index: 1000;
    display: flex;
    align-items: center;
    background: transparent;
    transition: background 0.3s ease;
}
.site-header.scrolled {
    background: rgba(17, 20, 24, 0.9);
    backdrop-filter: blur(12px);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}
.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: 32px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo-badge {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--acid);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 14px;
    color: var(--ink);
}
.logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff;
    line-height: 1;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: 12px;
}
.main-nav a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    font-weight: 500;
    position: relative;
    padding: 6px 0;
    transition: color 0.25s;
}
.main-nav a:hover { color: #fff; }
.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 32px;
    height: 3px;
    background: var(--acid);
    border-radius: 2px;
}
.header-search {
    width: 20px;
    height: 20px;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
}
.header-search svg {
    width: 20px;
    height: 20px;
    stroke: rgba(255, 255, 255, 0.85);
    transition: stroke 0.25s;
}
.header-search:hover svg { stroke: var(--acid); }
.hamburger {
    display: none;
    width: 24px;
    height: 24px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 0;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--ink);
    z-index: 999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 48px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}
.mobile-drawer.active {
    opacity: 1;
    visibility: visible;
}
.mobile-drawer .drawer-logo {
    position: absolute;
    top: 24px;
    left: 24px;
}
.mobile-drawer a.drawer-link {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: block;
}
.mobile-drawer a.drawer-link.active { color: var(--acid); }
.mobile-drawer .drawer-cta {
    position: absolute;
    bottom: 48px;
    left: 48px;
    right: 48px;
}

/* Hero */
.hero {
    background: var(--ink);
    color: #fff;
    padding: 140px 0 80px;
    position: relative;
    min-height: 640px;
    display: flex;
    align-items: center;
}
.hero .hero-grid {
    display: flex;
    align-items: center;
    gap: 48px;
}
.hero-left {
    flex: 0 0 5/12*100%;
    max-width: 42%;
}
.hero-right {
    flex: 0 0 58%;
    max-width: 58%;
    position: relative;
}
.hero-eyebrow {
    display: inline-block;
    background: rgba(215, 255, 62, 0.12);
    border: 1px solid rgba(215, 255, 62, 0.3);
    color: var(--acid);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 100px;
    letter-spacing: 0.06em;
    margin-bottom: 24px;
}
.hero h1 {
    font-size: 72px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 24px;
    color: #fff;
}
.hero-sub {
    font-size: 16px;
    color: var(--text-on-dark-sub);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 420px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.hero-trust {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}
.trust-item {
    display: flex;
    flex-direction: column;
}
.trust-item .num {
    font-size: 24px;
    font-weight: 800;
    color: var(--acid);
}
.trust-item .label {
    font-size: 12px;
    color: var(--text-on-dark-sub);
    margin-top: 4px;
}
.hero-visual {
    position: relative;
    clip-path: polygon(6% 0, 100% 0, 94% 100%, 0 100%);
    border-radius: 0;
    overflow: hidden;
}
.hero-visual img {
    width: 100%;
    height: auto;
    min-height: 400px;
    object-fit: cover;
    filter: contrast(1.1) brightness(0.95);
}
.hero-visual::after {
    content: '';
    position: absolute;
    bottom: -16px;
    right: -12px;
    width: 120px;
    height: 120px;
    background: var(--acid);
    z-index: 2;
}

/* Trust Bar */
.trust-bar {
    background: var(--cream);
    padding: 40px 0;
}
.trust-bar-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.trust-bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.trust-bar-item .num {
    font-size: 40px;
    font-weight: 800;
    color: var(--acid);
    line-height: 1.2;
}
.trust-bar-item .label {
    font-size: 13px;
    color: var(--text-sub);
    margin-top: 8px;
}

/* Features */
.features { background: var(--cream); }
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    align-items: start;
}
.feature-card {
    background: #fff;
    border-radius: var(--card-radius);
    padding: 36px;
    box-shadow: var(--shadow-1);
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative;
}
.feature-card:hover {
    box-shadow: var(--shadow-2);
    transform: translateY(-4px);
}
.feature-card.icon {
    grid-column: span 2;
    display: flex;
    gap: 32px;
    align-items: center;
}
.feature-card.icon .feature-body { flex: 1; }
.feature-card.icon .feature-visual {
    flex: 0 0 45%;
    border-radius: var(--img-radius);
    overflow: hidden;
    position: relative;
}
.feature-card.icon .feature-visual img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}
.feature-card.half { position: relative; }
.feature-card.half:nth-child(3) { margin-top: 24px; }
.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(215, 255, 62, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--ink);
    stroke-width: 2;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-main);
}
.feature-card p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.6;
    margin-bottom: 16px;
}
.feature-more {
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.feature-more .arrow { transition: transform 0.25s; }
.feature-more:hover .arrow { transform: translateX(4px); }

/* Scenarios */
.scenarios { background: #fff; }
.scenario-row {
    display: flex;
    align-items: center;
    gap: 64px;
    margin-bottom: 80px;
}
.scenario-row:last-child { margin-bottom: 0; }
.scenario-row.reverse { flex-direction: row-reverse; }
.scenario-num {
    font-size: 64px;
    font-weight: 800;
    color: var(--ash);
    opacity: 0.5;
    line-height: 1;
    margin-bottom: 12px;
}
.scenario-info { flex: 1; }
.scenario-visual { flex: 1; position: relative; }
.scenario-visual img {
    width: 100%;
    border-radius: var(--img-radius);
    object-fit: cover;
    height: 280px;
    filter: contrast(1.05);
}
.scenario-visual .corner {
    position: absolute;
    bottom: -12px;
    right: -12px;
    width: 80px;
    height: 80px;
    background: var(--acid);
    z-index: 1;
}
.scenario-info h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-main);
}
.scenario-info p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 460px;
}
.scenario-points {
    list-style: none;
    padding: 0;
}
.scenario-points li {
    font-size: 14px;
    color: var(--text-main);
    padding: 4px 0;
    position: relative;
    padding-left: 16px;
}
.scenario-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--acid);
}

/* Cases */
.cases { background: var(--cream); }
.cases-grid-large {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}
.case-large {
    background: #fff;
    border-radius: var(--card-radius);
    display: flex;
    overflow: hidden;
    box-shadow: var(--shadow-1);
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.case-large:hover {
    box-shadow: var(--shadow-2);
    transform: translateY(-4px);
}
.case-large .case-img {
    flex: 0 0 45%;
    overflow: hidden;
}
.case-large .case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 220px;
}
.case-large .case-body {
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
}
.case-client {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
}
.case-tag {
    display: inline-block;
    background: var(--acid);
    color: var(--ink);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 16px;
    width: fit-content;
    letter-spacing: 0.06em;
}
.case-metric {
    font-size: 40px;
    font-weight: 800;
    color: var(--acid);
    line-height: 1.2;
    margin-bottom: 8px;
}
.case-desc {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.6;
}
.cases-grid-small {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.case-small {
    background: #fff;
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--shadow-1);
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.case-small:hover {
    box-shadow: var(--shadow-2);
    transform: translateY(-4px);
}
.case-small .case-img {
    height: 160px;
    overflow: hidden;
}
.case-small .case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.case-small .case-body {
    padding: 24px;
}
.case-small .case-client {
    font-size: 16px;
    margin-bottom: 4px;
}
.case-small .case-tag { margin-bottom: 12px; }

/* Pricing */
.pricing { background: #fff; }
.pricing-grid {
    display: grid;
    grid-template-columns: 3fr 4fr 3fr;
    gap: 24px;
    align-items: center;
}
.price-card {
    background: #fff;
    border: 1px solid var(--ash);
    border-radius: var(--card-radius);
    padding: 40px 32px;
    text-align: center;
    position: relative;
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.price-card:hover { box-shadow: var(--shadow-2); transform: translateY(-4px); }
.price-card.recommended {
    background: var(--ink);
    color: #fff;
    border: none;
    transform: translateY(-12px);
    box-shadow: 0 16px 48px rgba(17, 20, 24, 0.25);
    overflow: hidden;
}
.price-card.recommended:hover {
    transform: translateY(-16px);
    box-shadow: 0 24px 56px rgba(17, 20, 24, 0.3);
}
.price-card .price-watermark {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 160px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.06);
    line-height: 1;
    pointer-events: none;
    z-index: 0;
}
.price-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-sub);
    margin-bottom: 16px;
    letter-spacing: 0.06em;
}
.price-card.recommended .price-label { color: var(--acid); }
.price-amount {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-main);
    margin-bottom: 4px;
}
.price-card.recommended .price-amount { color: #fff; }
.price-period {
    font-size: 13px;
    color: var(--text-sub);
    margin-bottom: 24px;
}
.price-card.recommended .price-period { color: var(--text-on-dark-sub); }
.price-features {
    list-style: none;
    padding: 0;
    margin-bottom: 32px;
    text-align: left;
}
.price-features li {
    font-size: 14px;
    padding: 6px 0;
    color: var(--text-sub);
    position: relative;
    padding-left: 20px;
}
.price-card.recommended .price-features li { color: var(--text-on-dark); }
.price-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--acid);
    font-weight: 700;
}
.price-card.recommended .price-features li::before { color: var(--acid); }

/* News CMS */
.news { background: var(--cream); }
.news-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.news-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: #fff;
    border-radius: 12px;
    padding: 12px;
    height: 96px;
    transition: all 0.25s ease;
    border-left: 3px solid transparent;
}
.news-item:hover {
    background: #FAF8F4;
    border-left-color: var(--acid);
    transform: translateX(4px);
}
.news-thumb {
    flex: 0 0 120px;
    height: 74px;
    border-radius: var(--img-radius);
    overflow: hidden;
    background: var(--ash);
}
.news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}
.news-tag {
    display: inline-block;
    background: var(--acid);
    color: var(--ink);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 100px;
    width: fit-content;
    letter-spacing: 0.06em;
}
.news-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0;
}
.news-content p {
    font-size: 14px;
    color: var(--text-sub);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0;
}
.news-date {
    font-size: 13px;
    color: var(--text-on-dark-sub);
    font-weight: 400;
}
.news-arrow {
    flex: 0 0 32px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-sub);
    transition: all 0.25s;
    font-size: 16px;
}
.news-item:hover .news-arrow {
    color: var(--ink);
    transform: translateX(4px);
}
.news-empty {
    height: 100px;
    background: #E9E7E2;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-sub);
}

/* FAQ */
.faq { background: #fff; }
.faq-wrap {
    max-width: 840px;
    margin: 0 auto;
}
.faq-item {
    border-bottom: 1px solid var(--ash);
}
.faq-item:last-child { border-bottom: none; }
.faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    font-size: 20px;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-main);
    transition: color 0.2s;
    user-select: none;
}
.faq-q:hover { color: var(--text-sub); }
.faq-item.active .faq-q { color: var(--acid); }
.faq-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex: 0 0 20px;
}
.faq-icon::before, .faq-icon::after {
    content: '';
    position: absolute;
    background: var(--text-main);
    transition: all 0.2s;
}
.faq-icon::before {
    width: 20px;
    height: 2px;
    top: 9px;
    left: 0;
}
.faq-icon::after {
    width: 2px;
    height: 20px;
    top: 0;
    left: 9px;
}
.faq-item.active .faq-icon::after {
    transform: rotate(90deg);
    opacity: 0;
}
.faq-item.active .faq-icon::before {
    background: var(--acid);
}
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}
.faq-a-inner {
    padding: 0 0 24px;
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
}

/* CTA */
.cta-section {
    background: var(--ink);
    padding: 96px 0;
}
.cta-card {
    background: var(--ink);
    border-radius: 24px;
    padding: 64px;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.cta-card::before {
    content: '365';
    position: absolute;
    left: 24px;
    bottom: -40px;
    font-size: 200px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.06);
    line-height: 1;
    pointer-events: none;
    font-family: var(--font-sans);
}
.cta-left {
    position: relative;
    z-index: 1;
}
.cta-left h2 {
    color: #fff;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}
.cta-left p {
    color: var(--text-on-dark-sub);
    font-size: 14px;
    max-width: 420px;
}
.cta-actions {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Footer */
.site-footer {
    background: var(--ink);
    padding: 80px 0 0;
    border-top: 2px solid var(--acid);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 64px;
    padding-bottom: 48px;
}
.footer-brand .logo-text {
    color: #fff;
    font-size: 20px;
}
.footer-brand p {
    color: var(--text-on-dark-sub);
    font-size: 14px;
    margin-top: 16px;
    line-height: 1.7;
    max-width: 320px;
}
.footer-head {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}
.footer-links {
    list-style: none;
    padding: 0;
    columns: 2;
    column-gap: 24px;
}
.footer-links li {
    margin-bottom: 10px;
    break-inside: avoid;
}
.footer-links a {
    color: var(--text-on-dark-sub);
    font-size: 14px;
    position: relative;
    display: inline-block;
}
.footer-links a:hover {
    color: #fff;
    text-decoration: underline;
    text-decoration-color: var(--acid);
    text-underline-offset: 4px;
    text-decoration-thickness: 2px;
}
.footer-contact {
    list-style: none;
    padding: 0;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-on-dark-sub);
    font-size: 14px;
    margin-bottom: 12px;
}
.footer-contact li i {
    width: 16px;
    color: var(--acid);
}
.copyright {
    border-top: 1px solid #2A2E34;
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.copyright p {
    color: var(--text-on-dark-sub);
    font-size: 13px;
}
.copyright .beian {
    color: #4A4F58;
    font-size: 12px;
}

/* Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.reveal {
    opacity: 0;
}
.reveal.visible {
    animation: fadeUp 0.35s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero h1 { font-size: 48px; }
    .hero-left { max-width: 50%; }
    .hero-right { max-width: 50%; }
    .features-grid { grid-template-columns: 1fr; }
    .feature-card.icon { grid-column: span 1; flex-direction: column; }
    .feature-card.icon .feature-visual { width: 100%; }
    .feature-card.half:nth-child(3) { margin-top: 0; }
    .feature-card.half { margin-bottom: 24px; }
    .scenario-row, .scenario-row.reverse { flex-direction: column; gap: 32px; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
    .price-card.recommended { transform: none; }
    .price-card.recommended:hover { transform: translateY(-4px); }
    .cases-grid-large { grid-template-columns: 1fr; }
    .cases-grid-small { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .cta-card { flex-direction: column; padding: 40px 32px; }
    .cta-actions { width: 100%; }
}
@media (max-width: 640px) {
    .section { padding: 48px 0; }
    .hero { padding: 100px 0 60px; }
    .hero-grid { flex-direction: column; }
    .hero-left { max-width: 100%; }
    .hero-right { max-width: 100%; }
    .hero h1 { font-size: 36px; }
    .trust-bar-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .trust-bar-item .num { font-size: 32px; }
    .main-nav, .header-search { display: none; }
    .hamburger { display: flex; }
    .header-cta { display: none; }
    .case-large { flex-direction: column; }
    .case-large .case-img img { min-height: 100px; height: 160px; }
    .news-item { height: auto; padding: 12px; flex-wrap: wrap; }
    .news-thumb { flex: 0 0 80px; height: 60px; }
    .news-content h4 { font-size: 15px; }
    .news-content p { display: none; }
    .news-arrow { display: none; }
    .faq-q { font-size: 16px; }
    .section-head h2 { font-size: 28px; }
    .footer-grid { gap: 40px; }
    .copyright { flex-direction: column; text-align: center; }
    .cta-card { padding: 32px 24px; }
    .cta-left h2 { font-size: 24px; }
}

/* roulang page: category1 */
:root {
            --ink: #111418;
            --yellow: #D7FF3E;
            --warm-bg: #F4F2ED;
            --gray-line: #C9CDD4;
            --text-main: #1B1E22;
            --text-sub: #5C6370;
            --dark-text: #F5F6F8;
            --dark-sub: #A0A6B2;
            --radius-card: 16px;
            --radius-img: 8px;
            --radius-pill: 100px;
            --shadow-rest: 0 8px 30px rgba(17, 20, 24, 0.06);
            --shadow-hover: 0 16px 48px rgba(17, 20, 24, 0.14);
            --container-w: 1200px;
            --container-wide: 1400px;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --ease: cubic-bezier(0.22, 1, 0.36, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background: var(--warm-bg);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
            background: #E9E7E2;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

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

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

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

        .grid-container {
            max-width: var(--container-w);
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 26px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            line-height: 1;
            transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
        }

        .btn-primary {
            background: var(--yellow);
            color: var(--ink);
        }

        .btn-primary:hover {
            background: #E1FF5E;
            transform: translateY(-2px);
        }

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

        .btn-outline:hover {
            border-color: var(--yellow);
            color: var(--ink);
            background: rgba(215, 255, 62, 0.08);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--dark-text);
            border: 1px solid rgba(245, 246, 248, 0.5);
        }

        .btn-outline-light:hover {
            border-color: var(--yellow);
            color: var(--yellow);
        }

        .btn-sm {
            height: 36px;
            padding: 0 18px;
            font-size: 13px;
        }

        .btn-lg {
            height: 52px;
            padding: 0 36px;
            font-size: 16px;
        }

        .btn .fa-arrow-right {
            transition: transform 0.25s var(--ease);
        }

        .btn:hover .fa-arrow-right {
            transform: translateX(4px);
        }

        /* ===== 顶导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            z-index: 100;
            background: transparent;
            transition: background 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(17, 20, 24, 0.92);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: var(--container-wide);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 36px;
        }

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

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

        .logo-badge {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--yellow);
            color: var(--ink);
            font-size: 18px;
            font-weight: 800;
            line-height: 1;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: #fff;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 26px;
        }

        .main-nav a {
            position: relative;
            display: inline-block;
            padding: 6px 2px;
            color: rgba(255, 255, 255, 0.82);
            font-size: 14px;
            font-weight: 500;
            line-height: 1.2;
            transition: color 0.25s ease;
        }

        .main-nav a:hover {
            color: #ffffff;
        }

        .main-nav a.active {
            color: #ffffff;
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 3px;
            background: var(--yellow);
            border-radius: 3px;
        }

        .search-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            color: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            transition: background 0.25s ease;
        }

        .search-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--yellow);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 36px;
            height: 36px;
            padding: 8px;
        }

        .menu-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: transform 0.3s var(--ease), opacity 0.3s ease;
        }

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

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

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

        .mobile-menu {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            z-index: 95;
            width: 100%;
            max-width: 420px;
            background: var(--ink);
            padding: 100px 40px 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transform: translateX(100%);
            transition: transform 0.4s var(--ease);
            overflow-y: auto;
        }

        .mobile-menu.open {
            transform: translateX(0);
        }

        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .mobile-menu nav a {
            font-size: 24px;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.85);
            padding-bottom: 6px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        /* ===== 分类页头部 ===== */
        .page-hero {
            position: relative;
            background: var(--ink);
            padding: 150px 0 76px;
            min-height: 410px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.4;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(17, 20, 24, 0.94) 0%, rgba(17, 20, 24, 0.6) 100%);
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            color: var(--dark-text);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--dark-sub);
            margin-bottom: 28px;
        }

        .breadcrumb a {
            color: var(--dark-sub);
            transition: color 0.25s ease;
        }

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

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb .current {
            color: #ffffff;
        }

        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: #ffffff;
            margin-bottom: 18px;
        }

        .page-hero-desc {
            max-width: 640px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--dark-sub);
            margin-bottom: 28px;
        }

        .page-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
        }

        .page-hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--dark-text);
        }

        .page-hero-meta i {
            color: var(--yellow);
        }

        .page-hero-deco {
            position: absolute;
            right: 6%;
            bottom: 32px;
            z-index: 1;
            width: 90px;
            height: 90px;
            background: var(--yellow);
            opacity: 0.15;
            border-radius: 12px;
            transform: rotate(12deg);
        }

        /* ===== 数据条 ===== */
        .trust-bar {
            background: var(--warm-bg);
            border-bottom: 1px solid rgba(201, 205, 212, 0.35);
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding: 36px 0;
        }

        .trust-item {
            text-align: center;
        }

        .trust-num {
            display: block;
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--yellow);
            letter-spacing: -0.02em;
            -webkit-text-stroke: 0.5px var(--ink);
        }

        .trust-label {
            display: block;
            margin-top: 6px;
            font-size: 13px;
            color: var(--text-sub);
            letter-spacing: 0.06em;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 96px 0;
        }

        .section-head {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            margin-bottom: 48px;
        }

        .section-bar {
            display: block;
            width: 20px;
            height: 3px;
            background: var(--yellow);
            border-radius: 3px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 38px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-sub {
            font-size: 14px;
            color: var(--text-sub);
            max-width: 560px;
        }

        /* ===== 编辑精选 ===== */
        .module-editors {
            padding-bottom: 64px;
        }

        .feature-card-large {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-rest);
            overflow: hidden;
            transition: box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
            margin-bottom: 24px;
        }

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

        .feature-card-img {
            position: relative;
            height: 280px;
            overflow: hidden;
        }

        .feature-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s var(--ease);
        }

        .feature-card-large:hover .feature-card-img img {
            transform: scale(1.02);
        }

        .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            display: inline-flex;
            align-items: center;
            height: 26px;
            padding: 0 12px;
            border-radius: var(--radius-pill);
            background: var(--yellow);
            color: var(--ink);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.06em;
            line-height: 1;
            z-index: 2;
        }

        .feature-card-body {
            padding: 30px 32px 32px;
        }

        .feature-card-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .feature-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            transition: color 0.25s ease;
        }

        .text-link .fa-arrow-right {
            transition: transform 0.25s var(--ease);
        }

        .text-link:hover {
            color: var(--ink);
        }

        .text-link:hover .fa-arrow-right {
            transform: translateX(4px);
        }

        .feature-card-half {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-rest);
            overflow: hidden;
            transition: box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
            height: 100%;
        }

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

        .feature-card-half .feature-card-img {
            height: 190px;
        }

        .feature-card-half .feature-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-card-half .feature-card-body {
            padding: 22px 24px 26px;
        }

        .feature-card-half .feature-card-body h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .feature-card-half .feature-card-body p {
            margin-bottom: 14px;
        }

        .half-card-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 24px;
        }

        /* ===== 延伸阅读 ===== */
        .module-reads {
            background: var(--warm-bg);
            padding-top: 64px;
        }

        .reads-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .read-item {
            display: flex;
            gap: 20px;
            background: #ffffff;
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-rest);
            transition: box-shadow 0.35s var(--ease), transform 0.35s var(--ease), background 0.25s ease;
        }

        .read-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            background: #FAF8F4;
        }

        .read-thumb {
            position: relative;
            flex-shrink: 0;
            width: 140px;
            height: 96px;
            border-radius: var(--radius-img);
            overflow: hidden;
        }

        .read-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .read-thumb .card-tag {
            position: absolute;
            top: 8px;
            left: 8px;
            height: 22px;
            padding: 0 8px;
            font-size: 11px;
        }

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

        .read-content h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.45;
            margin-bottom: 8px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .read-content p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .read-time {
            font-size: 12px;
            color: var(--dark-sub);
            letter-spacing: 0.03em;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 40px 0 96px;
            background: var(--warm-bg);
        }

        .cta-box {
            position: relative;
            background: var(--ink);
            border-radius: 24px;
            padding: 64px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
        }

        .cta-watermark {
            position: absolute;
            left: 24px;
            bottom: -30px;
            font-size: 200px;
            font-weight: 800;
            line-height: 1;
            color: rgba(255, 255, 255, 0.06);
            pointer-events: none;
            user-select: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
        }

        .cta-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .cta-content p {
            font-size: 14px;
            color: var(--dark-sub);
            line-height: 1.7;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--ink);
            padding: 80px 0 0;
        }

        .site-footer::before {
            content: "";
            display: block;
            width: 100%;
            height: 2px;
            background: var(--yellow);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 60px;
            padding-bottom: 56px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--dark-sub);
            line-height: 1.8;
            max-width: 320px;
            margin-top: 8px;
        }

        .footer-head {
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px 24px;
        }

        .footer-links a {
            display: inline-block;
            font-size: 14px;
            color: var(--dark-sub);
            transition: color 0.25s ease;
        }

        .footer-links a:hover {
            color: #ffffff;
            text-decoration: underline;
            text-decoration-color: var(--yellow);
            text-underline-offset: 4px;
        }

        .footer-contact {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

        .footer-contact i {
            width: 18px;
            color: var(--yellow);
            text-align: center;
        }

        .copyright {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            border-top: 1px solid #2A2E34;
        }

        .copyright p {
            font-size: 13px;
            color: var(--dark-sub);
        }

        .beian {
            font-size: 13px;
            color: var(--dark-sub);
            opacity: 0.7;
        }

        /* ===== 响应式 ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

        @media screen and (max-width: 1024px) {
            .main-nav {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .page-hero {
                padding: 132px 0 60px;
                min-height: 380px;
            }

            .page-hero h1 {
                font-size: 36px;
            }

            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px 20px;
                padding: 32px 0;
            }

            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 48px 40px;
            }

            .cta-actions {
                width: 100%;
            }

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

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

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

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

            .half-card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                margin-top: 20px;
            }

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

            .feature-card-large .feature-card-img {
                height: 220px;
            }

            .page-hero-desc {
                font-size: 14px;
            }

            .page-hero-meta {
                gap: 14px;
                flex-direction: column;
            }
        }

        @media screen and (max-width: 640px) {
            .header-inner {
                padding: 0 1rem;
            }

            .logo-text {
                font-size: 16px;
            }

            .header-right .search-btn {
                display: none;
            }

            .page-hero {
                padding: 112px 0 44px;
                min-height: 360px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .breadcrumb {
                margin-bottom: 20px;
            }

            .trust-bar {
                border-bottom: none;
            }

            .trust-grid {
                grid-template-columns: 1fr 1fr;
                padding: 28px 0;
                row-gap: 24px;
            }

            .trust-num {
                font-size: 34px;
            }

            .section {
                padding: 48px 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .feature-card-body {
                padding: 22px 20px 24px;
            }

            .feature-card-body h3 {
                font-size: 19px;
            }

            .feature-card-large .feature-card-img {
                height: 180px;
            }

            .feature-card-half .feature-card-img {
                height: 150px;
            }

            .read-item {
                flex-direction: row;
                padding: 14px;
                gap: 14px;
            }

            .read-thumb {
                width: 110px;
                height: 84px;
            }

            .read-content p {
                -webkit-line-clamp: 2;
            }

            .cta-section {
                padding: 24px 0 64px;
            }

            .cta-box {
                padding: 36px 24px;
                border-radius: 18px;
            }

            .cta-watermark {
                font-size: 140px;
                bottom: -16px;
            }

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

            .cta-actions {
                flex-direction: column;
                gap: 12px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
                padding-bottom: 40px;
            }

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

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

/* roulang page: article */
:root {
    --ink: #111418;
    --yellow: #D7FF3E;
    --warm: #F4F2ED;
    --warm-hover: #FAF8F4;
    --gray: #C9CDD4;
    --text-main: #1B1E22;
    --text-sub: #5C6370;
    --text-deep-main: #F5F6F8;
    --text-deep-sub: #A0A6B2;
    --border-dark: #2A2E34;
    --radius-lg: 16px;
    --radius-md: 8px;
    --radius-pill: 100px;
    --shadow: 0 8px 30px rgba(17,20,24,0.06);
    --shadow-hover: 0 16px 48px rgba(17,20,24,0.14);
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --trans: all 0.25s var(--ease);
    --section-pad: 96px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--warm);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

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

button, input {
    font: inherit;
}

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

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--trans);
    line-height: 1.4;
}

.btn-primary {
    background: var(--yellow);
    color: var(--ink);
}

.btn-primary:hover {
    filter: brightness(1.06);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.btn-outline:hover {
    border-color: var(--yellow);
    background: var(--yellow);
    color: var(--ink);
}

.btn-nav {
    height: 36px;
    padding: 0 20px;
    font-size: 13px;
}

/* 导航 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 64px;
    display: flex;
    align-items: center;
    background: transparent;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
    background: rgba(17, 20, 24, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

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

.nav-left {
    display: flex;
    align-items: center;
    gap: 40px;
}

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

.logo-badge {
    width: 32px;
    height: 32px;
    background: var(--yellow);
    color: var(--ink);
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    line-height: 1;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff;
    white-space: nowrap;
}

.main-nav {
    display: flex;
    gap: 28px;
}

.main-nav a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    font-weight: 500;
    position: relative;
    padding: 6px 0;
    transition: color 0.2s;
    white-space: nowrap;
}

.main-nav a:hover {
    color: #fff;
}

.main-nav a.active {
    color: #fff;
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 32px;
    height: 3px;
    background: var(--yellow);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-search {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.85);
    font-size: 16px;
    cursor: pointer;
    border-radius: 50%;
    transition: color 0.2s, background 0.2s;
}

.nav-search:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

/* 汉堡按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s var(--ease), opacity 0.2s;
}

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

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

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

/* 移动端抽屉 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    background: var(--ink);
    z-index: 105;
    padding: 28px 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    overflow-y: auto;
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 40px;
}

.mobile-nav a {
    font-size: 24px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.2s;
}

.mobile-nav a:hover,
.mobile-nav a.active {
    color: var(--yellow);
}

.mobile-menu-footer {
    margin-top: 48px;
}

.mobile-menu-footer .btn {
    width: 100%;
}

/* 搜索弹层 */
.search-overlay {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--ink);
    padding: 24px 32px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
    z-index: 120;
    transform: translateY(-110%);
    transition: transform 0.35s var(--ease);
}

.search-overlay.open {
    transform: translateY(0);
}

.search-form {
    max-width: 680px;
    margin: 0 auto;
    display: flex;
    gap: 14px;
    align-items: center;
}

.search-form input {
    flex: 1;
    height: 48px;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--gray);
    color: #fff;
    font-size: 16px;
    padding: 0 8px;
    transition: border-color 0.2s;
}

.search-form input::placeholder {
    color: var(--text-deep-sub);
}

.search-form input:focus {
    outline: none;
    border-bottom-color: var(--yellow);
}

.search-close {
    position: absolute;
    right: 20px;
    top: 18px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    border-radius: 50%;
    transition: color 0.2s, background 0.2s;
}

.search-close:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

/* 文章 Banner */
.article-hero {
    min-height: 280px;
    display: flex;
    align-items: center;
    padding: 130px 0 56px;
    background:
        linear-gradient(rgba(17, 20, 24, 0.88), rgba(17, 20, 24, 0.92)),
        url('/assets/images/backpic/back-1.webp') center 30% / cover no-repeat;
}

.breadcrumb {
    font-size: 13px;
    color: var(--text-deep-sub);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 20px;
}

.breadcrumb a {
    color: var(--text-deep-sub);
    transition: color 0.2s;
}

.breadcrumb a:hover {
    color: #fff;
}

.breadcrumb .sep {
    opacity: 0.5;
}

.breadcrumb .current {
    color: #fff;
}

.article-hero h1 {
    font-size: 42px;
    line-height: 1.3;
    font-weight: 800;
    color: #fff;
    margin: 0;
    max-width: 920px;
    letter-spacing: -0.02em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 文章主体 */
.article-main {
    padding: 48px 0 80px;
}

.article-layout {
    align-items: flex-start;
}

.article-content {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow);
}

.article-content p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-main);
    margin: 0 0 24px;
}

.article-content > p:first-of-type {
    font-size: 18px;
    color: var(--text-sub);
    border-left: 3px solid var(--yellow);
    padding-left: 16px;
    line-height: 1.8;
    margin-bottom: 32px;
}

.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 40px 0 16px;
    position: relative;
    padding-left: 30px;
    line-height: 1.4;
}

.article-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 3px;
    background: var(--yellow);
    border-radius: 2px;
}

.article-content h3,
.article-content h4 {
    font-size: 20px;
    font-weight: 600;
    margin: 32px 0 12px;
    line-height: 1.5;
}

.article-content a {
    color: var(--ink);
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color 0.2s;
}

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

.article-content img {
    border-radius: var(--radius-md);
    margin: 32px 0 0;
}

.article-content figcaption,
.article-content .wp-caption-text,
.article-content .image-caption {
    font-size: 12px;
    color: var(--text-sub);
    text-align: center;
    margin: 10px 0 32px;
    line-height: 1.6;
}

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

.article-content li {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 8px;
}

.article-content blockquote {
    margin: 32px 0;
    padding: 16px 24px;
    background: var(--warm);
    border-left: 4px solid var(--yellow);
    border-radius: 8px;
    color: var(--text-sub);
    font-size: 16px;
    line-height: 1.8;
}

/* 内容未找到 */
.article-not-found {
    padding: 60px 20px;
    text-align: center;
}

.article-not-found p {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 24px;
}

/* 文章底部工具条 */
.article-footer-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--gray);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-sub);
    transition: color 0.2s;
}

.back-link i {
    transition: transform 0.2s var(--ease);
}

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

.back-link:hover i {
    transform: translateX(-4px);
}

.share-btn {
    background: none;
    border: 1px solid var(--gray);
    border-radius: var(--radius-pill);
    padding: 8px 20px;
    font-size: 14px;
    color: var(--text-main);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--trans);
}

.share-btn:hover {
    border-color: var(--yellow);
    background: var(--yellow);
    color: var(--ink);
}

/* 侧栏 */
.article-sidebar {
    position: sticky;
    top: 120px;
}

.side-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.side-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 20px;
    position: relative;
    padding-left: 14px;
}

.side-card-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 16px;
    background: var(--yellow);
    border-radius: 2px;
}

.side-cat-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
}

.side-cat-desc {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-top: 10px;
    margin-bottom: 0;
}

.related-item {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray);
    transition: background 0.2s;
}

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

.related-title {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.2s;
}

.related-date {
    display: block;
    font-size: 12px;
    color: var(--text-sub);
    margin-top: 6px;
}

.related-item:hover .related-title {
    color: var(--ink);
}

.related-empty {
    background: #E9E7E2;
    border-radius: 12px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-sub);
    padding: 0 24px;
    text-align: center;
}

/* 延伸阅读 */
.extended-section {
    padding: var(--section-pad) 0;
}

.section-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
}

.section-bar {
    width: 20px;
    height: 3px;
    background: var(--yellow);
    border-radius: 2px;
    display: inline-block;
    flex-shrink: 0;
}

.section-head h2 {
    font-size: 36px;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.extended-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.extend-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow);
    transition: var(--trans);
}

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

.extend-thumb {
    width: 120px;
    height: 74px;
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--warm);
}

.extend-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.extend-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* CTA */
.cta-section {
    padding: 40px 0 var(--section-pad);
}

.cta-box {
    background: var(--ink);
    border-radius: 24px;
    padding: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    position: relative;
    overflow: hidden;
}

.cta-box h2 {
    color: #fff;
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.3;
}

.cta-box p {
    color: var(--text-deep-sub);
    font-size: 14px;
    margin: 0;
}

.cta-actions {
    display: flex;
    gap: 16px;
    flex-shrink: 0;
}

.cta-watermark {
    position: absolute;
    left: 16px;
    bottom: -40px;
    font-size: 200px;
    font-weight: 800;
    color: #fff;
    opacity: 0.06;
    line-height: 1;
    pointer-events: none;
    letter-spacing: -0.04em;
}

/* 页脚 */
.site-footer {
    background: var(--ink);
    padding: 64px 0 0;
    border-top: 2px solid var(--yellow);
}

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

.footer-brand .logo-text {
    color: #fff;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-deep-sub);
    margin: 16px 0 0;
    max-width: 320px;
}

.footer-head {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
}

.footer-links,
.footer-contact {
    list-style: none;
    margin: 0;
    padding: 0;
}

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

.footer-links a {
    font-size: 14px;
    color: var(--text-deep-sub);
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.footer-contact li {
    font-size: 14px;
    color: var(--text-deep-sub);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.footer-contact i {
    width: 16px;
    color: var(--yellow);
    text-align: center;
    font-size: 13px;
}

.copyright {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding: 24px 0;
    border-top: 1px solid var(--border-dark);
}

.copyright p {
    font-size: 13px;
    color: var(--text-deep-sub);
    margin: 0;
}

.beian {
    font-size: 13px;
    color: var(--text-deep-sub);
}

/* 焦点可见状态 */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 3px solid rgba(215, 255, 62, 0.6);
    outline-offset: 2px;
}

/* 动效减弱偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 平板 */
@media (max-width: 1024px) {
    :root {
        --section-pad: 72px;
    }

    .article-hero h1 {
        font-size: 36px;
    }

    .cta-box {
        padding: 48px 40px;
    }

    .cta-box h2 {
        font-size: 28px;
    }
}

/* 手机 */
@media (max-width: 640px) {
    :root {
        --section-pad: 48px;
    }

    .container,
    .container-wide {
        padding: 0 20px;
    }

    .main-nav,
    .nav-search,
    .btn-nav {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .logo-text {
        font-size: 16px;
    }

    .article-hero {
        min-height: 240px;
        padding: 110px 0 40px;
    }

    .article-hero h1 {
        font-size: 28px;
    }

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

    .article-content {
        padding: 24px 20px;
    }

    .article-content p {
        font-size: 15px;
    }

    .article-content > p:first-of-type {
        font-size: 16px;
        padding-left: 12px;
    }

    .article-footer-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .article-sidebar {
        position: static;
        margin-top: 32px;
    }

    .extended-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .extend-card {
        padding: 12px;
    }

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

    .cta-box {
        padding: 40px 24px;
        flex-direction: column;
        align-items: flex-start;
    }

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

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

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

    .copyright {
        flex-direction: column;
        align-items: flex-start;
    }

    .search-form {
        flex-direction: column;
        align-items: stretch;
    }
}

/* roulang page: category2 */
:root {
  --ink: #111418;
  --ink-2: #1A1E23;
  --volt: #D7FF3E;
  --volt-bright: #E2FF6B;
  --warm: #F4F2ED;
  --warm-light: #FAF8F4;
  --warm-mid: #EFEDE8;
  --gray: #C9CDD4;
  --line: #E2E0DB;
  --text: #1B1E22;
  --text-2: #5C6370;
  --deep-text: #F5F6F8;
  --deep-text-2: #A0A6B2;
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 8px 30px rgba(17,20,24,0.06);
  --shadow-hover: 0 16px 48px rgba(17,20,24,0.14);
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --ease: cubic-bezier(0.22,1,0.36,1);
  --transition: all 0.25s var(--ease);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--warm);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
}

.row {
  max-width: 1200px;
}

.container .row {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.row + .row {
  margin-top: 24px;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--warm-mid);
}

.section-head {
  margin-bottom: 44px;
}

.section-head .overline {
  display: inline-block;
  width: 20px;
  height: 3px;
  background: var(--volt);
  border-radius: 99px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  line-height: 1.3;
}

.section-head .sub {
  font-size: 14px;
  color: var(--text-2);
  margin-top: 10px;
  line-height: 1.7;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  z-index: 1000;
  transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: rgba(17,20,24,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: rgba(255,255,255,0.08);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--deep-text);
  white-space: nowrap;
}

.logo-badge {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--volt);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.main-nav {
  display: flex;
  gap: 28px;
  align-items: center;
}

.main-nav a {
  position: relative;
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 2px;
  transition: color 0.25s var(--ease);
}

.main-nav a:hover {
  color: #ffffff;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--volt);
  border-radius: 99px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.main-nav a.active::after {
  transform: scaleX(1);
}

.main-nav a.active {
  color: #ffffff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  color: #ffffff;
}

.search-btn {
  color: #ffffff;
  font-size: 18px;
  padding: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s;
}

.search-btn:hover {
  opacity: 0.75;
}

.hamburger {
  display: none;
  color: #ffffff;
  font-size: 22px;
  padding: 6px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 100px;
  padding: 0 24px;
  height: 44px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-volt {
  background: var(--volt);
  color: var(--ink);
}

.btn-volt:hover {
  background: var(--volt-bright);
  color: var(--ink);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.6);
  color: var(--deep-text);
}

.btn-outline:hover {
  border-color: var(--volt);
  color: var(--deep-text);
  transform: translateY(-2px);
}

.btn-sm {
  height: 36px;
  padding: 0 18px;
  font-size: 14px;
}

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 999;
  padding: 96px 32px 32px;
  flex-direction: column;
  justify-content: space-between;
}

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

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-menu nav a {
  color: #ffffff;
  font-size: 24px;
  font-weight: 700;
  transition: color 0.2s var(--ease);
}

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

.mobile-menu .btn {
  width: 100%;
}

.category-hero {
  background: var(--ink);
  padding: 168px 0 72px;
  color: var(--deep-text);
  position: relative;
  overflow: hidden;
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center / cover;
  opacity: 0.16;
}

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

.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--deep-text-2);
  margin-bottom: 24px;
}

.crumb a {
  color: var(--deep-text-2);
  transition: color 0.2s;
}

.crumb a:hover {
  color: var(--volt);
}

.crumb .sep {
  color: rgba(255,255,255,0.3);
}

.crumb .current {
  color: var(--deep-text);
}

.category-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 18px;
}

.category-summary {
  font-size: 14px;
  color: var(--deep-text-2);
  max-width: 720px;
  line-height: 1.8;
}

.feature-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: block;
}

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

.feature-card .cover {
  position: relative;
  height: 280px;
  overflow: hidden;
}

.feature-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-card .tag {
  position: absolute;
  top: 20px;
  left: 20px;
  background: var(--volt);
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  letter-spacing: 0.06em;
}

.feature-card .body {
  padding: 32px;
}

.feature-card h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  max-width: 860px;
}

.feature-card .metric {
  margin-top: 18px;
  font-size: 40px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
}

.feature-card .metric span {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-2);
  margin-left: 10px;
}

.feature-half {
  background: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: block;
  height: 100%;
}

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

.feature-half .thumb {
  height: 200px;
  overflow: hidden;
}

.feature-half .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-half .body {
  padding: 26px 28px;
}

.feature-half h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.feature-half p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.more-link i {
  transition: transform 0.25s var(--ease);
}

.feature-half:hover .more-link i {
  transform: translateX(4px);
}

.reading-card {
  background: #ffffff;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 3px solid transparent;
  height: 100%;
}

.reading-card:hover {
  background: var(--warm-light);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-left-color: var(--volt);
}

.reading-card .thumb {
  width: 220px;
  height: 130px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.reading-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.reading-card .content {
  flex: 1;
  min-width: 0;
}

.reading-card .read-tag {
  display: inline-block;
  font-size: 12px;
  background: var(--volt);
  color: var(--ink);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}

.reading-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.reading-card .card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 10px;
}

.reading-card .date {
  font-size: 13px;
  color: #A0A6B2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.reading-card .read-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}

.reading-card:hover .read-more {
  opacity: 1;
  transform: translateX(0);
}

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

.cta-box {
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
  overflow: hidden;
}

.cta-box::after {
  content: "365";
  position: absolute;
  left: 28px;
  bottom: -32px;
  font-size: 200px;
  font-weight: 800;
  color: #ffffff;
  opacity: 0.06;
  line-height: 1;
  pointer-events: none;
}

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

.cta-content h3 {
  font-size: 32px;
  font-weight: 700;
  color: var(--deep-text);
  margin-bottom: 12px;
  line-height: 1.3;
}

.cta-content p {
  font-size: 14px;
  color: var(--deep-text-2);
  max-width: 500px;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  gap: 16px;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.site-footer {
  background: var(--ink);
  color: var(--deep-text);
  border-top: 2px solid var(--volt);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.5fr;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-brand .logo {
  color: var(--deep-text);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--deep-text-2);
  max-width: 360px;
  line-height: 1.7;
}

.footer-head {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--deep-text);
}

.footer-links,
.footer-contact {
  list-style: none;
}

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

.footer-links a {
  color: var(--deep-text-2);
  font-size: 14px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
  border-bottom: 1px solid transparent;
}

.footer-links a:hover {
  color: var(--deep-text);
  border-bottom-color: var(--volt);
  padding-bottom: 2px;
}

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

.footer-contact i {
  color: var(--volt);
  width: 18px;
  text-align: center;
}

.copyright {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid #2A2E34;
  font-size: 13px;
  color: var(--deep-text-2);
}

.copyright p {
  margin: 0;
}

.beian {
  color: rgba(160,166,178,0.7);
}

.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.js-enabled .reveal {
  opacity: 0;
  transform: translateY(12px);
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (max-width: 1024px) {
  .main-nav {
    gap: 16px;
  }

  .main-nav a {
    font-size: 14px;
  }

  .reading-card .thumb {
    width: 180px;
    height: 110px;
  }

  .cta-box {
    padding: 48px;
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions {
    width: 100%;
  }
}

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

  .section {
    padding: 48px 0;
  }

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

  .main-nav,
  .search-btn,
  .header .btn-volt {
    display: none;
  }

  .hamburger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .category-hero {
    padding: 120px 0 48px;
  }

  .category-title {
    font-size: 28px;
  }

  .category-summary {
    font-size: 14px;
  }

  .feature-card .cover {
    height: 200px;
  }

  .feature-card .body {
    padding: 24px;
  }

  .feature-card h3 {
    font-size: 20px;
  }

  .feature-card .metric {
    font-size: 32px;
  }

  .feature-half .thumb {
    height: 160px;
  }

  .row + .row {
    margin-top: 20px;
  }

  .reading-card {
    flex-direction: row;
    padding: 10px;
    gap: 14px;
  }

  .reading-card .thumb {
    width: 120px;
    height: 84px;
  }

  .reading-card h4 {
    font-size: 15px;
    white-space: normal;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
  }

  .reading-card .read-more {
    display: none;
  }

  .reading-card .card-meta {
    margin-top: 6px;
  }

  .cta-section {
    padding: 0 0 48px;
  }

  .cta-box {
    padding: 32px;
    gap: 24px;
  }

  .cta-box::after {
    font-size: 140px;
    bottom: -24px;
    left: 16px;
  }

  .cta-content h3 {
    font-size: 24px;
  }

  .cta-actions {
    flex-direction: column;
  }

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

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

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .js-enabled .reveal {
    opacity: 1;
    transform: none;
  }

  .feature-card:hover,
  .feature-half:hover,
  .reading-card:hover {
    transform: none;
  }
}