/* ===== 设计系统：靛紫 + 珊瑚 ===== */
:root {
    --kf-primary: #5B21B6;
    --kf-primary-dark: #4C1D95;
    --kf-primary-deep: #2E1065;
    --kf-primary-light: #EDE9FE;
    --kf-primary-soft: #F5F3FF;
    --kf-accent: #F97316;
    --kf-accent-dark: #EA580C;
    --kf-accent-light: #FFEDD5;
    --kf-dark: #1C1917;
    --kf-text: #44403C;
    --kf-text-muted: #78716C;
    --kf-bg: #FAFAF9;
    --kf-surface: #FFFFFF;
    --kf-border: #E7E5E4;
    --kf-radius: 10px;
    --kf-radius-lg: 14px;
    --kf-shadow: 0 2px 12px rgba(91, 33, 182, 0.06);
    --kf-shadow-hover: 0 8px 28px rgba(91, 33, 182, 0.12);
    --kf-header-h: 68px;
    --kf-container: 1160px;
    --kf-transition: 0.25s ease;
}

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

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "微软雅黑", -apple-system, sans-serif;
    line-height: 1.65;
    color: var(--kf-text);
    background: var(--kf-bg);
    overflow-x: hidden;
}

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

a { color: inherit; }

.z541cfcontainer {
    width: 100%;
    max-width: var(--kf-container);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 导航 ===== */
.z541cfheader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--kf-border);
}

.z541cfheader .z541cfcontainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--kf-header-h);
}

.z541cflogo {
    font-size: 20px;
    font-weight: 700;
    color: var(--kf-primary-dark);
    flex-shrink: 0;
}

.z541cflogo a {
    color: inherit;
    text-decoration: none;
}

.z541cfmenu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    cursor: pointer;
    z-index: 1002;
    background: none;
    border: none;
}

.z541cfmenu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--kf-dark);
    border-radius: 1px;
    transition: var(--kf-transition);
}

.z541cfmenu-toggle.z541cfactive span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.z541cfmenu-toggle.z541cfactive span:nth-child(2) {
    opacity: 0;
}

.z541cfmenu-toggle.z541cfactive span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.z541cfnav-list {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
    align-items: center;
}

.z541cfnav-item {
    margin-left: 20px;
}

.z541cfnav-item a {
    text-decoration: none;
    color: var(--kf-text);
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    padding: 6px 0;
    transition: color var(--kf-transition);
}

.z541cfnav-item a:hover,
.z541cfnav-item.z541cfthis a {
    color: var(--kf-primary);
}

.z541cfnav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(28, 25, 23, 0.4);
    z-index: 999;
}

.z541cfnav-overlay.z541cfactive {
    display: block;
}

body.z541cfnav-open {
    overflow: hidden;
}

/* ===== 通用 ===== */
.z541cfsection-label {
    display: block;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--kf-accent);
    margin-bottom: 8px;
}

.z541cfsection-title {
    text-align: center;
    font-size: clamp(24px, 4vw, 32px);
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 10px;
}

.z541cfsection-subtitle {
    text-align: center;
    font-size: clamp(14px, 2vw, 16px);
    color: var(--kf-text-muted);
    max-width: 660px;
    margin: 0 auto 40px;
    line-height: 1.75;
}

.z541cfbtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--kf-transition);
    border: 2px solid transparent;
    cursor: pointer;
    line-height: 1.4;
}

.z541cfbtn-primary {
    background: var(--kf-primary);
    color: #fff;
    border-color: var(--kf-primary);
}

.z541cfbtn-primary:hover {
    background: var(--kf-primary-dark);
    border-color: var(--kf-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--kf-shadow-hover);
}

.z541cfbtn-secondary {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.65);
}

.z541cfbtn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.z541cfbtn-outline {
    background: transparent;
    color: var(--kf-primary);
    border-color: var(--kf-primary);
}

.z541cfbtn-outline:hover {
    background: var(--kf-primary);
    color: #fff;
}

.z541cfbtn-accent {
    background: var(--kf-accent);
    color: #fff;
    border-color: var(--kf-accent);
}

.z541cfbtn-accent:hover {
    background: var(--kf-accent-dark);
    border-color: var(--kf-accent-dark);
    transform: translateY(-1px);
}

/* ===== Hero ===== */
.z541cfhero {
    padding: calc(var(--kf-header-h) + 48px) 0 64px;
    background: linear-gradient(160deg, var(--kf-primary-deep) 0%, #5B21B6 50%, #7C3AED 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.z541cfhero::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.2), transparent 70%);
    top: -100px;
    right: -80px;
    pointer-events: none;
}

.z541cfhero-wrapper {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.z541cfhero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 12px;
    margin-bottom: 16px;
}

.z541cfhero-badge-dot {
    width: 7px;
    height: 7px;
    background: var(--kf-accent);
    border-radius: 50%;
}

.z541cfhero-content h2 {
    font-size: clamp(26px, 4.5vw, 40px);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 16px;
}

.z541cfhero-content > p {
    font-size: clamp(14px, 2vw, 16px);
    line-height: 1.75;
    opacity: 0.9;
    margin-bottom: 28px;
    max-width: 520px;
}

.z541cfhero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
}

.z541cfhero-feature-item {
    flex: 1 1 90px;
    min-width: 0;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--kf-radius);
    padding: 14px 10px;
    text-align: center;
}

.z541cffeature-number {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--kf-accent-light);
    line-height: 1.2;
}

.z541cffeature-text {
    font-size: 12px;
    opacity: 0.85;
    margin-top: 4px;
    display: block;
}

.z541cfcta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.z541cfcta-buttons .z541cfbtn { margin: 0; }

.z541cfhero-image {
    border-radius: var(--kf-radius-lg);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    aspect-ratio: 5/4;
    max-height: 360px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z541cfhero-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 16px;
}

/* ===== 数据条 ===== */
.z541cfstats-bar {
    background: var(--kf-surface);
    border-bottom: 1px solid var(--kf-border);
    padding: 24px 0;
}

.z541cfstats-bar-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.z541cfstats-bar-item {
    text-align: center;
    padding: 8px;
}

.z541cfstats-bar-item + .z541cfstats-bar-item {
    border-left: 1px solid var(--kf-border);
}

.z541cfstats-bar-num {
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 700;
    color: var(--kf-primary);
    line-height: 1.2;
}

.z541cfstats-bar-label {
    font-size: 12px;
    color: var(--kf-text-muted);
    margin-top: 4px;
}

/* ===== 业务板块 ===== */
.z541cfservices {
    padding: 72px 0;
    background: var(--kf-bg);
}

.z541cfservice-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.z541cfservice-card {
    background: var(--kf-surface);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color var(--kf-transition), box-shadow var(--kf-transition);
    min-width: 0;
}

.z541cfservice-card::before {
    content: '';
    display: block;
    height: 3px;
    background: linear-gradient(90deg, var(--kf-primary), var(--kf-accent));
}

.z541cfservice-card:hover {
    border-color: var(--kf-primary-light);
    box-shadow: var(--kf-shadow-hover);
}

.z541cfservice-card.z541cfservice-featured::before {
    height: 4px;
}

.z541cfservice-icon {
    height: 120px;
    background: var(--kf-primary-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.z541cfservice-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 12px;
    max-height: 120px;
}

.z541cfservice-overlay {
    position: absolute;
    top: 10px;
    right: 10px;
}

.z541cfservice-tag {
    background: var(--kf-primary);
    color: #fff;
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 600;
}

.z541cfservice-content {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.z541cfservice-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 10px;
}

.z541cfservice-header h3 {
    color: var(--kf-dark);
    font-size: 16px;
    font-weight: 700;
    word-break: break-word;
}

.z541cfservice-badge {
    background: var(--kf-accent-light);
    color: var(--kf-accent-dark);
    padding: 2px 8px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.z541cfservice-desc {
    color: var(--kf-text-muted);
    font-size: 13px;
    line-height: 1.65;
    margin-bottom: 12px;
}

.z541cfservice-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 12px;
    padding: 12px;
    background: var(--kf-bg);
    border-radius: var(--kf-radius);
    border: 1px solid var(--kf-border);
}

.z541cfdetail-item { min-width: 0; }

.z541cfdetail-label {
    display: block;
    font-size: 11px;
    color: var(--kf-text-muted);
    margin-bottom: 1px;
}

.z541cfdetail-value {
    font-size: 13px;
    font-weight: 700;
    color: var(--kf-primary-dark);
    word-break: break-word;
}

.z541cfservice-features {
    margin-bottom: 12px;
    flex: 1;
}

.z541cfservice-features h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--kf-dark);
    margin-bottom: 6px;
}

.z541cfservice-features ul {
    list-style: none;
}

.z541cfservice-features ul li {
    font-size: 12px;
    color: var(--kf-text-muted);
    padding: 3px 0 3px 14px;
    position: relative;
    line-height: 1.5;
}

.z541cfservice-features ul li::before {
    content: '·';
    position: absolute;
    left: 4px;
    color: var(--kf-primary);
    font-weight: 700;
}

.z541cfservice-cta {
    display: flex;
    gap: 8px;
    margin-top: auto;
}

.z541cfservice-cta .z541cfbtn {
    flex: 1;
    padding: 9px 10px;
    font-size: 13px;
    min-width: 0;
}

/* ===== 优势 ===== */
.z541cfservice-advantages {
    padding-top: 40px;
    border-top: 1px solid var(--kf-border);
}

.z541cfservice-advantages > h3 {
    text-align: center;
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 28px;
}

.z541cfadvantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.z541cfadvantage-item {
    background: var(--kf-surface);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.z541cfadvantage-icon {
    background: linear-gradient(135deg, var(--kf-primary), #7C3AED);
    padding: 16px;
    text-align: center;
}

.z541cfadvantage-icon .z541cficon {
    font-size: 28px;
}

.z541cfadvantage-content {
    padding: 16px;
    flex: 1;
}

.z541cfadvantage-content h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 6px;
}

.z541cfadvantage-content > p {
    font-size: 13px;
    color: var(--kf-text-muted);
    line-height: 1.6;
    margin-bottom: 10px;
}

.z541cfadvantage-features {
    list-style: none;
}

.z541cfadvantage-features li {
    font-size: 12px;
    color: var(--kf-text);
    padding: 3px 0 3px 14px;
    position: relative;
}

.z541cfadvantage-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--kf-primary);
    font-size: 11px;
    font-weight: 700;
}

.z541cfadvantages-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    padding: 28px;
    background: linear-gradient(135deg, var(--kf-primary-deep), var(--kf-primary));
    border-radius: var(--kf-radius-lg);
    color: #fff;
}

.z541cfstat-item {
    text-align: center;
    padding: 14px 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--kf-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.z541cfstat-number {
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 700;
    line-height: 1.2;
}

.z541cfstat-label {
    font-size: 12px;
    opacity: 0.88;
    margin-top: 4px;
}

/* ===== 流程 ===== */
.z541cfprocess {
    padding: 72px 0;
    background: var(--kf-surface);
}

.z541cfprocess-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.z541cfprocess-step {
    text-align: center;
    padding: 0 8px;
    min-width: 0;
}

.z541cfstep-number {
    width: 48px;
    height: 48px;
    background: var(--kf-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    margin: 0 auto 12px;
    border: 3px solid var(--kf-primary-light);
}

.z541cfstep-content h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 6px;
}

.z541cfstep-content > p {
    font-size: 12px;
    color: var(--kf-text-muted);
    margin-bottom: 10px;
    line-height: 1.5;
}

.z541cfstep-details {
    list-style: none;
    text-align: left;
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius);
    padding: 10px;
}

.z541cfstep-details li {
    font-size: 11px;
    color: var(--kf-text);
    padding: 3px 0;
    display: flex;
    align-items: center;
    gap: 5px;
}

.z541cfprocess-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: center;
    margin-bottom: 36px;
}

.z541cfprocess-info h3 {
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 12px;
}

.z541cfprocess-info p {
    font-size: 14px;
    color: var(--kf-text-muted);
    line-height: 1.75;
    margin-bottom: 20px;
}

.z541cfprocess-image {
    border-radius: var(--kf-radius-lg);
    overflow: hidden;
    border: 1px solid var(--kf-border);
    background: var(--kf-primary-soft);
    aspect-ratio: 4/3;
    max-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z541cfprocess-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 12px;
}

.z541cfprocess-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.z541cffeature-item {
    text-align: center;
    padding: 16px 10px;
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius);
}

.z541cffeature-item .z541cffeature-icon {
    font-size: 24px;
    margin-bottom: 8px;
}

.z541cffeature-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--kf-dark);
    margin-bottom: 4px;
}

.z541cffeature-item p {
    font-size: 12px;
    color: var(--kf-text-muted);
    line-height: 1.45;
}

/* ===== 特点 ===== */
.z541cffeatures {
    padding: 72px 0;
    background: var(--kf-bg);
}

.z541cffeatures-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.z541cffeature-card {
    background: var(--kf-surface);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--kf-transition);
    min-width: 0;
}

.z541cffeature-card:hover {
    box-shadow: var(--kf-shadow-hover);
}

.z541cffeature-card .z541cffeature-icon {
    background: var(--kf-primary-soft);
    padding: 18px;
    text-align: center;
}

.z541cffeature-card .z541cffeature-icon .z541cficon {
    font-size: 30px;
}

.z541cffeature-content {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z541cffeature-content h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 6px;
}

.z541cffeature-content > p {
    font-size: 13px;
    color: var(--kf-text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
}

.z541cffeature-details {
    list-style: none;
    flex: 1;
    margin-bottom: 12px;
}

.z541cffeature-details li {
    font-size: 12px;
    color: var(--kf-text);
    padding: 3px 0 3px 18px;
    position: relative;
}

.z541cfdetail-icon {
    position: absolute;
    left: 0;
    color: var(--kf-primary);
    font-weight: 700;
    font-style: normal;
}

.z541cffeature-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 10px;
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius);
}

.z541cffeature-stats .z541cfstat {
    text-align: center;
}

.z541cffeature-stats .z541cfstat-number {
    font-size: 18px;
    font-weight: 700;
    color: var(--kf-primary);
}

.z541cffeature-stats .z541cfstat-label {
    font-size: 11px;
    color: var(--kf-text-muted);
}

.z541cffeatures-highlight {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding: 28px;
    background: linear-gradient(135deg, var(--kf-primary-deep), var(--kf-primary));
    border-radius: var(--kf-radius-lg);
    color: #fff;
}

.z541cfhighlight-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    min-width: 0;
}

.z541cfhighlight-icon {
    flex-shrink: 0;
    font-size: 24px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--kf-radius);
}

.z541cfhighlight-content {
    min-width: 0;
}

.z541cfhighlight-content h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 4px;
}

.z541cfhighlight-content p {
    font-size: 12px;
    opacity: 0.88;
    line-height: 1.55;
}

/* ===== FAQ ===== */
.z541cffaq {
    padding: 72px 0;
    background: var(--kf-surface);
}

.z541cffaq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.z541cffaq-card {
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    overflow: hidden;
    min-width: 0;
}

.z541cffaq-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 18px 0;
}

.z541cffaq-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: var(--kf-primary-light);
    color: var(--kf-primary-dark);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.z541cffaq-header h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--kf-dark);
    line-height: 1.4;
    padding-top: 4px;
}

.z541cffaq-content {
    padding: 10px 18px 18px 66px;
}

.z541cffaq-content p {
    font-size: 13px;
    color: var(--kf-text-muted);
    line-height: 1.65;
    margin-bottom: 10px;
}

.z541cffaq-details {
    list-style: none;
}

.z541cffaq-details li {
    font-size: 12px;
    color: var(--kf-text);
    padding: 2px 0 2px 16px;
    position: relative;
}

.z541cffaq-details li .z541cfdetail-icon {
    position: absolute;
    left: 0;
}

.z541cffaq-contact .z541cfcontact-card {
    background: linear-gradient(135deg, var(--kf-primary), #7C3AED);
    border-radius: var(--kf-radius-lg);
    padding: 28px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 20px;
    border: none;
}

.z541cffaq-contact .z541cfcontact-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.z541cffaq-contact .z541cfcontact-content h4 {
    font-size: 18px;
    margin-bottom: 6px;
}

.z541cffaq-contact .z541cfcontact-content p {
    font-size: 13px;
    opacity: 0.9;
    margin-bottom: 14px;
}

.z541cffaq-contact .z541cfbtn {
    background: #fff;
    color: var(--kf-primary-dark);
    border-color: #fff;
}

/* ===== 资讯 ===== */
.z541cfhome-articles {
    padding: 72px 0;
    background: var(--kf-bg);
}

.z541cfhome-articles-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.z541cfhome-article-card {
    background: var(--kf-surface);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--kf-transition);
    min-width: 0;
}

.z541cfhome-article-card:hover {
    box-shadow: var(--kf-shadow-hover);
}

.z541cfhome-article-thumb {
    display: block;
    height: 110px;
    overflow: hidden;
    background: var(--kf-primary-soft);
    flex-shrink: 0;
}

.z541cfhome-article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z541cfhome-article-info {
    padding: 12px;
    flex: 1;
    min-width: 0;
}

.z541cfhome-article-info h3 {
    font-size: 13px;
    margin: 0 0 6px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.z541cfhome-article-info h3 a {
    color: var(--kf-dark);
    text-decoration: none;
}

.z541cfhome-article-info h3 a:hover {
    color: var(--kf-primary);
}

.z541cfhome-article-date {
    font-size: 11px;
    color: var(--kf-text-muted);
}

/* ===== 联系 ===== */
.z541cfcontact {
    padding: 72px 0;
    background: var(--kf-surface);
}

.z541cfcontact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.z541cfcontact .z541cfcontact-card {
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    padding: 24px 16px;
    text-align: center;
}

.z541cfcontact .z541cfcontact-icon {
    width: 48px;
    height: 48px;
    background: var(--kf-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin: 0 auto 12px;
}

.z541cfcontact .z541cfcontact-content h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 6px;
}

.z541cfcontact .z541cfcontact-content p {
    font-size: 14px;
    color: var(--kf-text);
}

.z541cfcontact-time {
    color: var(--kf-text-muted) !important;
    font-size: 12px !important;
}

.z541cfcontact-form-wrapper {
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    padding: 28px;
}

.z541cfform-header {
    text-align: center;
    margin-bottom: 22px;
}

.z541cfform-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 6px;
}

.z541cfform-header p {
    font-size: 14px;
    color: var(--kf-text-muted);
}

.z541cfcontact-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.z541cfform-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.z541cfform-group:last-child {
    grid-template-columns: 1fr;
}

.z541cfcontact-form input,
.z541cfcontact-form select,
.z541cfcontact-form textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--kf-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--kf-surface);
    color: var(--kf-text);
    transition: border-color var(--kf-transition), box-shadow var(--kf-transition);
}

.z541cfcontact-form input:focus,
.z541cfcontact-form select:focus,
.z541cfcontact-form textarea:focus {
    outline: none;
    border-color: var(--kf-primary);
    box-shadow: 0 0 0 3px rgba(91, 33, 182, 0.1);
}

.z541cfcontact-form textarea {
    min-height: 110px;
    resize: vertical;
}

.z541cfcontact-form button {
    width: 100%;
    padding: 13px;
    font-size: 15px;
    border: none;
}

.z541cfcontact-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 32px;
}

.z541cfcontact-features .z541cffeature-item {
    background: var(--kf-bg);
}

/* ===== 页脚 ===== */
.z541cffooter {
    background: var(--kf-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 0 20px;
}

.z541cffooter-wrapper {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 28px;
    margin-bottom: 28px;
}

.z541cffooter-info h3 {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.z541cffooter-info p {
    font-size: 13px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.55);
}

.z541cffooter-links h4,
.z541cffooter-contact h4 {
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--kf-accent);
    display: inline-block;
}

.z541cffooter-links ul {
    list-style: none;
}

.z541cffooter-links li {
    margin-bottom: 6px;
}

.z541cffooter-links a {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    font-size: 13px;
    transition: color var(--kf-transition);
}

.z541cffooter-links a:hover {
    color: var(--kf-accent-light);
}

.z541cffooter-contact p {
    font-size: 13px;
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.55);
}

.z541cffooter-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 16px;
    text-align: center;
}

.z541cffooter-bottom p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 6px;
}

.z541cffriend-links {
    margin: 10px 0;
}

.z541cffriend-links h4 {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 6px;
}

.z541cffriend-links ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px 14px;
}

.z541cffriend-links a {
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    font-size: 12px;
}

.z541cfstatistics a {
    color: var(--kf-accent-light);
    text-decoration: none;
}

/* ===== 内页 ===== */
.z541cfpage-main {
    padding: calc(var(--kf-header-h) + 32px) 0 56px;
    background: var(--kf-bg);
    min-height: 50vh;
}

.z541cfbreadcrumb {
    font-size: 13px;
    color: var(--kf-text-muted);
    margin-bottom: 18px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}

.z541cfbreadcrumb a {
    color: var(--kf-primary);
    text-decoration: none;
}

.z541cfbreadcrumb-sep {
    color: var(--kf-border);
    margin: 0 4px;
}

.z541cfbreadcrumb-current {
    color: var(--kf-text);
    word-break: break-word;
}

.z541cfpage-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 20px;
    align-items: start;
}

.z541cfpage-content {
    background: var(--kf-surface);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    padding: 28px;
    min-width: 0;
    overflow: hidden;
}

.z541cfpage-head {
    margin-bottom: 22px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--kf-border);
}

.z541cfpage-title {
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 700;
    color: var(--kf-dark);
    line-height: 1.35;
    word-break: break-word;
}

.z541cfpage-desc {
    color: var(--kf-text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin-top: 8px;
}

.z541cflist-items {
    list-style: none;
}

.z541cflist-item {
    display: flex;
    gap: 18px;
    padding: 20px 0;
    border-bottom: 1px solid var(--kf-border);
}

.z541cflist-item:last-child {
    border-bottom: none;
}

.z541cflist-thumb {
    flex-shrink: 0;
    width: 190px;
    height: 130px;
    border-radius: var(--kf-radius);
    overflow: hidden;
    display: block;
    background: var(--kf-primary-soft);
    border: 1px solid var(--kf-border);
}

.z541cflist-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z541cflist-body {
    flex: 1;
    min-width: 0;
}

.z541cflist-title {
    font-size: 17px;
    margin: 0 0 8px;
    line-height: 1.4;
}

.z541cflist-title a {
    color: var(--kf-dark);
    text-decoration: none;
    word-break: break-word;
}

.z541cflist-title a:hover {
    color: var(--kf-primary);
}

.z541cflist-meta {
    font-size: 12px;
    color: var(--kf-text-muted);
    margin-bottom: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
}

.z541cflist-meta a {
    color: var(--kf-primary);
    text-decoration: none;
}

.z541cflist-intro {
    font-size: 13px;
    color: var(--kf-text-muted);
    line-height: 1.65;
    margin-bottom: 8px;
    word-break: break-word;
}

.z541cflist-more {
    color: var(--kf-primary);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
}

.z541cfpagebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--kf-border);
}

.z541cfpagebar-prev,
.z541cfpagebar-next {
    flex: 0 0 auto;
    min-width: 70px;
}

.z541cfpagebar-center {
    flex: 1;
    text-align: center;
}

.z541cfpagebar-center ul,
.z541cfpagebar-prev ul,
.z541cfpagebar-next ul {
    list-style: none;
    display: inline-flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
}

.z541cfpagebar a,
.z541cfpagebar span {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    text-decoration: none;
    color: var(--kf-text);
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
}

.z541cfpagebar a:hover {
    background: var(--kf-primary);
    color: #fff;
    border-color: var(--kf-primary);
}

.z541cfarticle-title {
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 700;
    color: var(--kf-dark);
    line-height: 1.4;
    margin-bottom: 12px;
    word-break: break-word;
}

.z541cfarticle-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
    font-size: 12px;
    color: var(--kf-text-muted);
    padding-bottom: 16px;
    border-bottom: 1px solid var(--kf-border);
    margin-bottom: 20px;
}

.z541cfarticle-meta a {
    color: var(--kf-primary);
    text-decoration: none;
}

.z541cfarticle-thumb {
    margin-bottom: 20px;
    border-radius: var(--kf-radius);
    overflow: hidden;
    border: 1px solid var(--kf-border);
    background: var(--kf-bg);
}

.z541cfarticle-body {
    font-size: 15px;
    line-height: 1.85;
    color: var(--kf-text);
    word-break: break-word;
    overflow-wrap: break-word;
}

.z541cfarticle-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--kf-radius);
}

.z541cfarticle-body p {
    margin-bottom: 12px;
}

.z541cfarticle-gallery {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed var(--kf-border);
}

.z541cfarticle-gallery img {
    max-width: 100%;
    border-radius: var(--kf-radius);
}

.z541cfarticle-gallery span {
    display: block;
    font-size: 12px;
    color: var(--kf-text-muted);
    margin-top: 6px;
}

.z541cfdiyfield {
    margin-top: 20px;
    padding: 16px;
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius);
    font-size: 14px;
    word-break: break-word;
}

.z541cfmeta-tags {
    list-style: none;
    margin: 20px 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.z541cftagitem a {
    display: inline-block;
    padding: 5px 12px;
    background: var(--kf-primary-light);
    color: var(--kf-primary-dark);
    border-radius: 50px;
    font-size: 12px;
    text-decoration: none;
}

.z541cftagitem a:hover {
    background: var(--kf-primary);
    color: #fff;
}

.z541cfarticle-navlinks {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--kf-border);
    font-size: 13px;
}

.z541cfarticle-prev,
.z541cfarticle-next {
    flex: 1;
    min-width: 0;
    max-width: 48%;
    word-break: break-word;
}

.z541cfarticle-prev a,
.z541cfarticle-next a {
    color: var(--kf-primary);
    text-decoration: none;
}

.z541cfarticle-next {
    text-align: right;
}

.z541cfrelated {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--kf-border);
}

.z541cfrelated-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--kf-dark);
    margin-bottom: 16px;
}

.z541cfrelated-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
}

.z541cfrelated-item {
    background: var(--kf-bg);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius);
    overflow: hidden;
}

.z541cfrelated-thumb {
    display: block;
    height: 110px;
    overflow: hidden;
    background: var(--kf-primary-soft);
}

.z541cfrelated-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z541cfrelated-body {
    padding: 10px;
}

.z541cfrelated-body h4 {
    font-size: 13px;
    margin: 0 0 4px;
    line-height: 1.35;
}

.z541cfrelated-body h4 a {
    color: var(--kf-dark);
    text-decoration: none;
}

.z541cfrelated-body p {
    font-size: 11px;
    color: var(--kf-text-muted);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.z541cfsidebar {
    position: sticky;
    top: calc(var(--kf-header-h) + 12px);
}

.z541cfsidebar-box {
    background: var(--kf-surface);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    padding: 18px;
    margin-bottom: 16px;
    overflow: hidden;
}

.z541cfsidebar-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--kf-dark);
    margin: 0 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--kf-primary-light);
}

.z541cfsidebar-title a {
    color: inherit;
    text-decoration: none;
}

.z541cfsidebar-list {
    list-style: none;
    max-height: 420px;
    overflow-y: auto;
}

.z541cfsidebar-item {
    border-bottom: 1px solid var(--kf-border);
}

.z541cfsidebar-item:last-child {
    border-bottom: none;
}

.z541cfsidebar-item a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    text-decoration: none;
    color: var(--kf-text);
    font-size: 13px;
    line-height: 1.4;
}

.z541cfsidebar-item a:hover {
    color: var(--kf-primary);
}

.z541cfsidebar-thumb {
    flex-shrink: 0;
    width: 56px;
    height: 42px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--kf-primary-soft);
    border: 1px solid var(--kf-border);
}

.z541cfsidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z541cfsidebar-text {
    flex: 1;
    min-width: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
    .z541cfservice-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z541cfhome-articles-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .z541cfpage-layout {
        grid-template-columns: 1fr 250px;
    }

    .z541cfnav-item {
        margin-left: 14px;
    }

    .z541cfnav-item a {
        font-size: 13px;
    }
}

@media (max-width: 992px) {
    :root {
        --kf-header-h: 60px;
    }

    .z541cfmenu-toggle {
        display: flex;
    }

    .z541cfnav {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(280px, 85vw);
        height: 100vh;
        background: var(--kf-surface);
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
        transition: right var(--kf-transition);
        z-index: 1001;
        overflow-y: auto;
        padding: calc(var(--kf-header-h) + 8px) 0 20px;
    }

    .z541cfnav.z541cfactive {
        right: 0;
    }

    .z541cfnav-list {
        flex-direction: column;
        align-items: stretch;
    }

    .z541cfnav-item {
        margin: 0;
        border-bottom: 1px solid var(--kf-border);
    }

    .z541cfnav-item a {
        display: block;
        padding: 13px 20px;
    }

    .z541cfnav-item.z541cfthis a {
        background: var(--kf-primary-soft);
        color: var(--kf-primary-dark);
    }

    .z541cfhero-wrapper {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .z541cfhero-content {
        text-align: center;
    }

    .z541cfhero-content > p {
        margin-left: auto;
        margin-right: auto;
    }

    .z541cfhero-features,
    .z541cfcta-buttons {
        justify-content: center;
    }

    .z541cfhero-image {
        max-width: 420px;
        margin: 0 auto;
    }

    .z541cfstats-bar-item + .z541cfstats-bar-item {
        border-left: none;
    }

    .z541cfstats-bar-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z541cfstats-bar-item:nth-child(1),
    .z541cfstats-bar-item:nth-child(2) {
        border-bottom: 1px solid var(--kf-border);
        padding-bottom: 12px;
    }

    .z541cfadvantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z541cfadvantages-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .z541cfprocess-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .z541cfprocess-wrapper {
        grid-template-columns: 1fr;
    }

    .z541cfprocess-features {
        grid-template-columns: repeat(2, 1fr);
    }

    .z541cffeatures-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z541cffeatures-highlight {
        grid-template-columns: 1fr;
    }

    .z541cffaq-grid {
        grid-template-columns: 1fr;
    }

    .z541cffaq-content {
        padding-left: 18px;
    }

    .z541cfcontact-grid {
        grid-template-columns: 1fr;
    }

    .z541cfcontact-features {
        grid-template-columns: repeat(2, 1fr);
    }

    .z541cfhome-articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z541cfpage-layout {
        grid-template-columns: 1fr;
    }

    .z541cfsidebar {
        position: static;
    }

    .z541cffooter-wrapper {
        grid-template-columns: 1fr 1fr;
    }

    .z541cffooter-info {
        grid-column: 1 / -1;
    }

    .z541cflist-item {
        flex-direction: column;
    }

    .z541cflist-thumb {
        width: 100%;
        height: 170px;
    }

    .z541cfpagebar {
        flex-direction: column;
        align-items: stretch;
    }

    .z541cfpagebar-prev,
    .z541cfpagebar-next {
        text-align: center;
    }

    .z541cfarticle-navlinks {
        flex-direction: column;
    }

    .z541cfarticle-prev,
    .z541cfarticle-next {
        max-width: 100%;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .z541cfcontainer {
        padding: 0 16px;
    }

    .z541cfservices,
    .z541cfprocess,
    .z541cffeatures,
    .z541cffaq,
    .z541cfhome-articles,
    .z541cfcontact {
        padding: 48px 0;
    }

    .z541cfservice-grid {
        grid-template-columns: 1fr;
    }

    .z541cfadvantages-grid,
    .z541cffeatures-grid {
        grid-template-columns: 1fr;
    }

    .z541cfprocess-timeline {
        grid-template-columns: 1fr;
    }

    .z541cfprocess-features {
        grid-template-columns: 1fr 1fr;
    }

    .z541cfservice-details {
        grid-template-columns: 1fr;
    }

    .z541cfservice-cta {
        flex-direction: column;
    }

    .z541cfform-group {
        grid-template-columns: 1fr;
    }

    .z541cfcontact-form-wrapper {
        padding: 20px 16px;
    }

    .z541cffaq-contact .z541cfcontact-card {
        flex-direction: column;
        text-align: center;
    }

    .z541cfhome-articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z541cffooter-wrapper {
        grid-template-columns: 1fr;
    }

    .z541cfpage-content {
        padding: 20px 16px;
    }

    .z541cfhero-features {
        flex-direction: column;
        align-items: center;
    }

    .z541cfhero-feature-item {
        width: 100%;
        max-width: 260px;
    }

    .z541cfcta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .z541cfcta-buttons .z541cfbtn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .z541cfcontainer {
        padding: 0 14px;
    }

    .z541cflogo {
        font-size: 17px;
    }

    .z541cfstats-bar-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .z541cfadvantages-stats {
        padding: 18px 14px;
        grid-template-columns: 1fr 1fr;
    }

    .z541cffeatures-highlight {
        padding: 18px 14px;
    }

    .z541cfcontact-features,
    .z541cfprocess-features {
        grid-template-columns: 1fr;
    }

    .z541cfhome-articles-grid {
        grid-template-columns: 1fr;
    }

    .z541cfrelated-list {
        grid-template-columns: 1fr;
    }
}