/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1677ff;
    --primary-dark: #0958d9;
    --primary-light: #4096ff;
    --primary-bg: #e6f4ff;
    --success: #00b96b;
    --success-light: #f6ffed;
    --warning: #faad14;
    --danger: #ff4d4f;
    --bg: #f0f2f5;
    --card-bg: #ffffff;
    --text-1: #1f1f1f;
    --text-2: #595959;
    --text-3: #8c8c8c;
    --border: #e8e8e8;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --container: 1200px;
    --header-h: 64px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-1);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

/* ===== Container ===== */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
}

.header.scrolled {
    box-shadow: var(--shadow);
}

.header-inner {
    max-width: var(--container);
    height: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-1);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    flex-shrink: 0;
}

.logo-text {
    white-space: nowrap;
}

.logo-text small {
    display: block;
    font-size: 11px;
    font-weight: 400;
    color: var(--text-3);
    line-height: 1.2;
}

/* ===== Navigation ===== */
.nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav a {
    display: block;
    padding: 8px 16px;
    color: var(--text-2);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

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

.nav-cta {
    margin-left: 8px;
    padding: 8px 20px !important;
    background: var(--primary) !important;
    color: #fff !important;
    border-radius: var(--radius-sm);
}

.nav-cta:hover {
    background: var(--primary-dark) !important;
    color: #fff !important;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-1);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    margin-top: var(--header-h);
    padding: 60px 0 50px;
    background: linear-gradient(135deg, #e6f4ff 0%, #f0f5ff 50%, #f6ffed 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(22, 119, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 185, 107, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: #fff;
    border: 1px solid var(--primary-bg);
    border-radius: 20px;
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero h1 {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--text-1);
}

.hero h1 span {
    color: var(--primary);
}

.hero-desc {
    font-size: 17px;
    color: var(--text-2);
    margin-bottom: 28px;
    max-width: 560px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(22, 119, 255, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(22, 119, 255, 0.4);
}

.btn-outline {
    background: #fff;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary-bg);
    color: var(--primary-dark);
}

.btn-success {
    background: var(--success);
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 185, 107, 0.3);
}

.btn-success:hover {
    background: #009457;
    color: #fff;
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.hero-stat {
    text-align: left;
}

.hero-stat-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
}

.hero-stat-label {
    font-size: 13px;
    color: var(--text-3);
}

/* Hero visual */
.hero-visual {
    flex: 0 0 420px;
    display: flex;
    justify-content: center;
}

.hero-card {
    background: #fff;
    border-radius: 16px;
    padding: 28px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.hero-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}

.hero-card-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
}

.hero-card-info h4 {
    font-size: 16px;
    font-weight: 600;
}

.hero-card-info p {
    font-size: 12px;
    color: var(--text-3);
}

.hero-card-status {
    margin-left: auto;
    padding: 4px 12px;
    background: var(--success-light);
    color: var(--success);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.hero-card-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

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

.hero-card-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.hero-card-icon.blue { background: var(--primary-bg); color: var(--primary); }
.hero-card-icon.green { background: var(--success-light); color: var(--success); }
.hero-card-icon.orange { background: #fff7e6; color: var(--warning); }

.hero-card-item-text {
    flex: 1;
}

.hero-card-item-text h5 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-1);
}

.hero-card-item-text p {
    font-size: 12px;
    color: var(--text-3);
}

.hero-card-item-tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.tag-success { background: var(--success-light); color: var(--success); }
.tag-pending { background: #fff7e6; color: var(--warning); }

/* ===== Section ===== */
.section {
    padding: 60px 0;
}

.section-alt {
    background: #fff;
}

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

.section-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 14px;
}

.section-title {
    font-size: 30px;
    font-weight: 800;
    color: var(--text-1);
    margin-bottom: 12px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-3);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Service Cards ===== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    border-color: var(--primary-bg);
}

.service-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 20px;
}

.service-card:nth-child(1) .service-card-icon { background: var(--primary-bg); color: var(--primary); }
.service-card:nth-child(2) .service-card-icon { background: var(--success-light); color: var(--success); }
.service-card:nth-child(3) .service-card-icon { background: #fff7e6; color: var(--warning); }
.service-card:nth-child(4) .service-card-icon { background: #f9f0ff; color: #722ed1; }
.service-card:nth-child(5) .service-card-icon { background: #fff0f6; color: #eb2f96; }
.service-card:nth-child(6) .service-card-icon { background: #e6fffb; color: #13c2c2; }

.service-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-card p {
    font-size: 14px;
    color: var(--text-2);
    margin-bottom: 16px;
    line-height: 1.8;
}

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

.service-card-link:hover {
    gap: 8px;
}

/* ===== Process Steps ===== */
.process-wrap {
    position: relative;
}

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

.process-grid::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-bg), var(--primary-light), var(--primary-bg));
    z-index: 0;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.process-num {
    width: 72px;
    height: 72px;
    margin: 0 auto 18px;
    background: #fff;
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    box-shadow: 0 4px 12px rgba(22, 119, 255, 0.15);
    transition: var(--transition);
}

.process-step:hover .process-num {
    background: var(--primary);
    color: #fff;
}

.process-step h4 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--text-3);
    padding: 0 10px;
}

/* ===== Features ===== */
.features-wrap {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-item:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    background: var(--primary-bg);
    color: var(--primary);
}

.feature-item:nth-child(2) .feature-icon { background: var(--success-light); color: var(--success); }
.feature-item:nth-child(3) .feature-icon { background: #fff7e6; color: var(--warning); }
.feature-item:nth-child(4) .feature-icon { background: #f9f0ff; color: #722ed1; }
.feature-item:nth-child(5) .feature-icon { background: #fff0f6; color: #eb2f96; }
.feature-item:nth-child(6) .feature-icon { background: #e6fffb; color: #13c2c2; }

.feature-text h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.feature-text p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
}

/* ===== Guarantee Banner ===== */
.guarantee {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 16px;
    padding: 40px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 40px;
    position: relative;
    overflow: hidden;
}

.guarantee::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    border-radius: 50%;
}

.guarantee-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    flex-shrink: 0;
    backdrop-filter: blur(10px);
}

.guarantee-content {
    flex: 1;
    position: relative;
}

.guarantee-content h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 8px;
}

.guarantee-content p {
    font-size: 15px;
    opacity: 0.9;
    margin-bottom: 0;
}

.guarantee-btn {
    background: #fff;
    color: var(--primary);
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 15px;
    white-space: nowrap;
    flex-shrink: 0;
    transition: var(--transition);
}

.guarantee-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    color: var(--primary-dark);
}

/* ===== Cases ===== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.case-card-banner {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 14px;
    border-bottom: 1px solid var(--border);
}

.case-card-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    flex-shrink: 0;
}

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

.case-card-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.case-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
}

.case-card p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.8;
    margin-bottom: 14px;
}

.case-card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-3);
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.case-card-result {
    color: var(--success);
    font-weight: 600;
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border-radius: var(--radius);
    margin-bottom: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

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

.faq-q {
    padding: 18px 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-1);
    user-select: none;
}

.faq-q-icon {
    width: 28px;
    height: 28px;
    background: var(--primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 14px;
    flex-shrink: 0;
    transition: var(--transition);
}

.faq-item.open .faq-q-icon {
    transform: rotate(180deg);
    background: var(--primary);
    color: #fff;
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-a {
    max-height: 500px;
}

.faq-a-inner {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.9;
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, #e6f4ff, #f0f5ff);
    padding: 56px 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-section p {
    font-size: 16px;
    color: var(--text-2);
    margin-bottom: 24px;
}

/* ===== Footer ===== */
.footer {
    background: #1a1a2e;
    color: #b0b0b0;
    padding: 50px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 16px;
    color: #888;
}

.footer-disclaimer-mini {
    font-size: 12px;
    color: #666;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    line-height: 1.7;
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 16px;
}

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

.footer-col ul li a {
    color: #888;
    font-size: 14px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: #666;
}

.footer-bottom p {
    margin-bottom: 4px;
}

.footer-bottom a {
    color: #888;
}

/* ===== Page Banner ===== */
.page-banner {
    margin-top: var(--header-h);
    padding: 50px 0 40px;
    background: linear-gradient(135deg, #e6f4ff 0%, #f0f5ff 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(22, 119, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

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

.page-banner h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--text-1);
}

.page-banner p {
    font-size: 16px;
    color: var(--text-2);
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-3);
}

.breadcrumb a {
    color: var(--text-3);
}

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

.breadcrumb span {
    margin: 0 6px;
}

/* ===== Content Layout ===== */
.content-wrap {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 32px;
    padding: 48px 0;
}

.article-content {
    background: #fff;
    border-radius: var(--radius);
    padding: 36px;
    box-shadow: var(--shadow);
}

.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 32px 0 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-bg);
}

.article-content h2:first-child {
    margin-top: 0;
}

.article-content h3 {
    font-size: 19px;
    font-weight: 700;
    margin: 24px 0 12px;
    color: var(--text-1);
}

.article-content p {
    font-size: 15px;
    color: var(--text-2);
    line-height: 2;
    margin-bottom: 16px;
}

.article-content ul, .article-content ol {
    margin: 0 0 20px 20px;
}

.article-content ul li, .article-content ol li {
    font-size: 15px;
    color: var(--text-2);
    line-height: 2;
    list-style: disc;
    margin-bottom: 6px;
}

.article-content ol li {
    list-style: decimal;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-bg);
    padding: 16px 20px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
}

.article-content blockquote p {
    margin-bottom: 0;
    color: var(--text-1);
    font-weight: 500;
}

/* Info box */
.info-box {
    background: var(--primary-bg);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin: 24px 0;
    border-left: 4px solid var(--primary);
}

.info-box h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.info-box p {
    font-size: 14px;
    margin-bottom: 0;
}

.warning-box {
    background: #fffbe6;
    border-left: 4px solid var(--warning);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin: 24px 0;
}

.warning-box h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--warning);
    margin-bottom: 8px;
}

.warning-box p {
    font-size: 14px;
    margin-bottom: 0;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.sidebar-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-bg);
}

.sidebar-contact {
    text-align: center;
}

.sidebar-contact-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
}

.sidebar-contact h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 6px;
}

.sidebar-contact p {
    font-size: 14px;
    color: var(--text-2);
    margin-bottom: 16px;
}

.sidebar-nav-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.sidebar-nav-list li:last-child {
    border-bottom: none;
}

.sidebar-nav-list a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-2);
}

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

.sidebar-nav-list a::before {
    content: '>';
    color: var(--text-3);
    font-size: 12px;
}

.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sidebar-tag {
    padding: 4px 12px;
    background: var(--bg);
    border-radius: 4px;
    font-size: 13px;
    color: var(--text-2);
    transition: var(--transition);
}

.sidebar-tag:hover {
    background: var(--primary-bg);
    color: var(--primary);
}

/* ===== Appeal Template Card ===== */
.template-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
    transition: var(--transition);
}

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

.template-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.template-card-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.template-card-body {
    background: var(--bg);
    border-radius: var(--radius-sm);
    padding: 20px;
    font-size: 14px;
    line-height: 2;
    color: var(--text-2);
}

.template-card-body p {
    margin-bottom: 8px;
}

/* ===== Tech Method Card ===== */
.method-card {
    display: flex;
    gap: 20px;
    background: #fff;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    transition: var(--transition);
}

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

.method-num {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    flex-shrink: 0;
}

.method-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.method-content p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.9;
    margin-bottom: 10px;
}

.method-content ul {
    margin-left: 18px;
    margin-bottom: 0;
}

.method-content ul li {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.9;
    list-style: disc;
}

/* ===== Stats Section ===== */
.stats-section {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 48px 0;
    color: #fff;
}

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

.stat-item h3 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 6px;
}

.stat-item p {
    font-size: 14px;
    opacity: 0.85;
}

/* ===== 404 ===== */
.error-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-top: var(--header-h);
}

.error-page h1 {
    font-size: 72px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
}

.error-page h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.error-page p {
    font-size: 16px;
    color: var(--text-3);
    margin-bottom: 24px;
}

/* ===== Disclaimer Content ===== */
.disclaimer-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px 0;
}

.disclaimer-content h2 {
    font-size: 22px;
    font-weight: 700;
    margin: 28px 0 14px;
    color: var(--text-1);
}

.disclaimer-content h2:first-child {
    margin-top: 0;
}

.disclaimer-content p {
    font-size: 15px;
    color: var(--text-2);
    line-height: 2;
    margin-bottom: 14px;
}

.disclaimer-content strong {
    color: var(--text-1);
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .hero-inner {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-visual {
        order: 1;
        flex: 0 0 auto;
        width: 100%;
        max-width: 380px;
    }

    .hero-actions, .hero-stats {
        justify-content: center;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

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

    .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .process-grid::before {
        display: none;
    }

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

    .guarantee {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

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

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

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

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px;
        gap: 0;
        box-shadow: var(--shadow-lg);
        transform: translateY(-200%);
        transition: transform 0.3s ease;
        max-height: calc(100vh - var(--header-h));
        overflow-y: auto;
    }

    .nav.open {
        transform: translateY(0);
    }

    .nav a {
        width: 100%;
        padding: 12px 16px;
        border-bottom: 1px solid var(--border);
    }

    .nav-cta {
        margin: 12px 0 0;
        text-align: center;
    }

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

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

    .hero-stats {
        gap: 24px;
    }

    .hero-stat-num {
        font-size: 22px;
    }

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

    .service-grid, .case-grid {
        grid-template-columns: 1fr;
    }

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

    .guarantee {
        padding: 28px 20px;
    }

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

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

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

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

    .stat-item h3 {
        font-size: 28px;
    }

    .method-card {
        flex-direction: column;
        gap: 14px;
    }
}

/* ===== Animation ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}