/* 达证通 · 工程教育认证数智平台 — edudake.cc */
:root {
    --primary-color: #0e7490;
    --primary-dark: #155e75;
    --primary-darker: #164e63;
    --primary-light: #06b6d4;
    --secondary-color: #16a34a;
    --accent-color: #f59e0b;
    --text-color: #1e293b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --bg-light: #f8fafc;
    --bg-tint: #ecfeff;
    --bg-dark: #0f172a;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    font-size: 16px; line-height: 1.6; color: var(--text-color); background: #fff;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
a { color: var(--primary-color); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; }

/* ===== 导航栏 ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px);
    box-shadow: var(--shadow); z-index: 1000; padding: 15px 0;
}
.navbar.scrolled { box-shadow: var(--shadow-hover); }
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.nav-brand a { display: flex; align-items: baseline; gap: 8px; }
.logo-mark {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 9px; margin-right: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff; font-size: 19px; font-weight: 700; transform: translateY(6px);
}
.logo-text { font-size: 24px; font-weight: 700; color: var(--primary-color); }
.logo-en { font-size: 14px; color: var(--text-muted); font-weight: 400; }
.nav-menu { display: flex; list-style: none; gap: 30px; }
.nav-menu a { color: var(--text-color); font-weight: 500; padding: 8px 0; position: relative; }
.nav-menu a:hover, .nav-menu a.active { color: var(--primary-color); }
.nav-menu a::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
    background: var(--primary-color); transition: var(--transition);
}
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.dropdown { position: relative; }
.dropdown-menu {
    position: absolute; top: 100%; left: 0; background: #fff;
    box-shadow: var(--shadow-hover); border-radius: 12px; padding: 10px 0;
    min-width: 190px; opacity: 0; visibility: hidden; transform: translateY(10px);
    transition: var(--transition); list-style: none;
}
.dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: 10px 20px; color: var(--text-color); font-size: 14px; }
.dropdown-menu a:hover { background: var(--bg-light); color: var(--primary-color); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-toggle span { width: 25px; height: 3px; background: var(--text-color); transition: var(--transition); }

/* ===== 英雄区 ===== */
.hero {
    position: relative; min-height: 100vh; display: flex; align-items: center;
    padding-top: 80px; color: #fff; overflow: hidden;
    background: linear-gradient(135deg, #0e7490 0%, #155e75 55%, #164e63 100%);
}
.hero-bg {
    position: absolute; inset: 0; opacity: 0.12;
    background-image:
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.12) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.12) 0%, transparent 50%);
}
.hero .container { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; position: relative; }
.hero-badge {
    display: inline-block; background: rgba(255,255,255,0.18); padding: 8px 20px;
    border-radius: 30px; font-size: 14px; margin-bottom: 20px;
}
.hero h1 { font-size: 52px; font-weight: 700; margin-bottom: 10px; letter-spacing: 4px; }
.hero-subtitle { font-size: 23px; opacity: 0.92; margin-bottom: 18px; font-weight: 500; }
.hero-desc { font-size: 16px; opacity: 0.85; line-height: 1.9; margin-bottom: 36px; }
.hero-btns { display: flex; gap: 20px; }
.hero-metrics { display: flex; gap: 36px; margin-top: 40px; flex-wrap: wrap; }
.metric { text-align: left; }
.metric b { display: block; font-size: 30px; font-weight: 700; }
.metric span { font-size: 13px; opacity: 0.75; }

/* 英雄区闭环图 */
.hero-visual { position: relative; }
.loop-wrap { position: relative; width: 420px; height: 420px; margin: 0 auto; }
.loop-center {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 128px; height: 128px; border-radius: 50%;
    background: rgba(255,255,255,0.16); border: 2px solid rgba(255,255,255,0.45);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    animation: pulse 2.6s infinite;
}
.loop-center i { font-size: 30px; margin-bottom: 4px; }
.loop-center span { font-size: 14px; font-weight: 600; }
.loop-node {
    position: absolute; width: 88px; height: 88px; border-radius: 50%;
    background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.35);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    animation: pulse 2.6s infinite;
}
.loop-node i { font-size: 19px; margin-bottom: 3px; }
.loop-node span { font-size: 12px; }
.ln-1 { top: 0; left: 50%; transform: translateX(-50%); }
.ln-2 { top: 17%; right: 2%; animation-delay: .3s; }
.ln-3 { bottom: 17%; right: 2%; animation-delay: .6s; }
.ln-4 { bottom: 0; left: 50%; transform: translateX(-50%); animation-delay: .9s; }
.ln-5 { bottom: 17%; left: 2%; animation-delay: 1.2s; }
.ln-6 { top: 17%; left: 2%; animation-delay: 1.5s; }
.lines { position: absolute; inset: 0; width: 100%; height: 100%; stroke: rgba(255,255,255,0.3); stroke-width: 1.6; }
@keyframes pulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { opacity: .82; } }
.ln-1.pulse, .ln-4.pulse { animation-name: pulse-c; }
@keyframes pulse-c { 0%,100% { transform: translateX(-50%) scale(1); opacity: 1; } 50% { opacity: .82; } }

/* ===== 按钮 ===== */
.btn {
    display: inline-block; padding: 14px 34px; border-radius: 8px;
    font-weight: 600; font-size: 16px; cursor: pointer; transition: var(--transition);
    border: none; text-align: center;
}
.btn-primary { background: #fff; color: var(--primary-color); }
.btn-primary:hover { background: var(--bg-tint); color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-accent { background: var(--primary-color); color: #fff; }
.btn-accent:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; }

/* ===== 通用区块 ===== */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 { font-size: 36px; margin-bottom: 14px; }
.section-header p { font-size: 17px; color: var(--text-light); }
.section-badge {
    display: inline-block; padding: 5px 16px; border-radius: 20px; font-size: 14px;
    font-weight: 600; margin-bottom: 12px; color: var(--primary-color);
    background: var(--bg-tint);
}

/* 六环闭环流程 */
.capabilities-section { background: var(--bg-light); }
.capabilities-flow { display: flex; align-items: stretch; justify-content: center; gap: 14px; flex-wrap: wrap; }
.capability-item {
    text-align: center; padding: 26px 20px; background: #fff; border-radius: 16px;
    box-shadow: var(--shadow); flex: 1; min-width: 150px; max-width: 175px;
}
.capability-icon {
    width: 66px; height: 66px; border-radius: 50%; margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex; align-items: center; justify-content: center;
}
.capability-icon i { font-size: 26px; color: #fff; }
.capability-item h4 { font-size: 17px; margin-bottom: 8px; }
.capability-item p { color: var(--text-light); font-size: 13px; }
.flow-arrow { color: var(--primary-color); font-size: 22px; align-self: center; }

/* 三级判分 */
.judge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.judge-card {
    background: #fff; border-radius: 16px; padding: 34px 28px;
    border: 1px solid var(--border-color); box-shadow: var(--shadow);
    transition: var(--transition); position: relative;
}
.judge-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
.judge-level {
    position: absolute; top: 20px; right: 22px; font-size: 26px; font-weight: 800; color: var(--bg-tint);
    -webkit-text-stroke: 1px var(--primary-light);
}
.judge-card h3 { font-size: 20px; margin-bottom: 6px; }
.judge-card .judge-tag { font-size: 13px; color: var(--primary-color); margin-bottom: 16px; }
.judge-card ul { list-style: none; }
.judge-card li { padding: 6px 0 6px 22px; position: relative; color: var(--text-light); font-size: 14px; }
.judge-card li::before { content: '✓'; position: absolute; left: 0; color: var(--secondary-color); font-weight: 700; }
.judge-note {
    margin-top: 26px; text-align: center; padding: 14px 26px; border-radius: 12px;
    background: #fffbeb; border: 1px dashed var(--accent-color);
    color: #92400e; font-size: 15px;
}

/* 四大壁垒 */
.modules-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.modules-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.module-card {
    background: #fff; border-radius: 16px; padding: 28px 24px; box-shadow: var(--shadow);
    transition: var(--transition); border: 1px solid var(--border-color); position: relative;
}
.module-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
.module-badge {
    position: absolute; top: 15px; right: 15px; background: var(--secondary-color);
    color: #fff; padding: 4px 12px; border-radius: 20px; font-size: 12px;
}
.module-badge.gold { background: var(--accent-color); }
.module-icon {
    width: 58px; height: 58px; border-radius: 12px; margin-bottom: 18px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex; align-items: center; justify-content: center;
}
.module-icon i { font-size: 26px; color: #fff; }
.module-card h3 { font-size: 19px; margin-bottom: 10px; }
.module-card > p { color: var(--text-light); font-size: 14px; margin-bottom: 16px; }
.module-features { list-style: none; margin-bottom: 18px; }
.module-features li { padding: 5px 0 5px 20px; color: var(--text-light); font-size: 13.5px; position: relative; }
.module-features li::before { content: '•'; position: absolute; left: 0; color: var(--primary-color); }
.module-link { font-weight: 500; font-size: 14px; }

/* 数据条 */
.stats-section { background: var(--bg-dark); color: #fff; padding: 60px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-item b { display: block; font-size: 42px; font-weight: 800; color: var(--primary-light); margin-bottom: 6px; }
.stat-item span { font-size: 14px; opacity: 0.75; }
.stats-source { text-align: center; margin-top: 28px; font-size: 13px; opacity: 0.5; }

/* 应用场景 */
.scenarios-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.scenario-item {
    text-align: center; padding: 38px 20px; background: var(--bg-light);
    border-radius: 16px; transition: var(--transition);
}
.scenario-item:hover { transform: translateY(-5px); box-shadow: var(--shadow); background: #fff; }
.scenario-item i { font-size: 42px; color: var(--primary-color); margin-bottom: 16px; }
.scenario-item h4 { font-size: 19px; margin-bottom: 10px; }
.scenario-item p { color: var(--text-light); font-size: 14px; }

/* ===== 内页头部 ===== */
.page-header {
    padding: 150px 0 70px; background: linear-gradient(135deg, #0e7490 0%, #155e75 60%, #164e63 100%);
    color: #fff; text-align: center;
}
.page-header h1 { font-size: 40px; margin-bottom: 14px; }
.page-header p { font-size: 17px; opacity: 0.85; max-width: 760px; margin: 0 auto; }

/* ===== 产品详情页 ===== */
.product-group { padding: 70px 0; border-bottom: 1px solid var(--border-color); }
.product-group:nth-child(even) { background: var(--bg-light); }
.product-header { display: flex; align-items: center; gap: 18px; margin-bottom: 14px; }
.group-icon {
    width: 56px; height: 56px; border-radius: 14px; flex: none;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex; align-items: center; justify-content: center;
}
.group-icon i { font-size: 24px; color: #fff; }
.group-badge {
    display: inline-block; background: var(--bg-tint); color: var(--primary-dark);
    padding: 3px 12px; border-radius: 16px; font-size: 12.5px; font-weight: 600; margin-left: 8px;
}
.product-header h2 { font-size: 28px; }
.product-desc { color: var(--text-light); font-size: 15.5px; margin-bottom: 34px; max-width: 880px; }
.product-body { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: center; }
.product-body.reverse { grid-template-columns: 1fr 1.05fr; }
.product-body.reverse .product-shot { order: -1; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feature-item {
    background: #fff; border: 1px solid var(--border-color); border-radius: 12px;
    padding: 16px 18px; transition: var(--transition);
}
.feature-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow); }
.feature-item h4 { font-size: 15.5px; margin-bottom: 5px; }
.feature-item h4 i { color: var(--primary-color); margin-right: 7px; }
.feature-item p { font-size: 13.5px; color: var(--text-light); }
.product-shot { position: relative; }
.product-shot img {
    width: 100%; border-radius: 14px; border: 1px solid var(--border-color);
    box-shadow: var(--shadow-hover); display: block;
}
.shot-caption {
    position: absolute; left: 14px; bottom: 14px; background: rgba(15,23,42,0.78);
    color: #fff; padding: 6px 14px; border-radius: 8px; font-size: 12.5px;
}
.shot-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ===== 解决方案 ===== */
.solution-card {
    background: #fff; border: 1px solid var(--border-color); border-radius: 18px;
    padding: 34px 30px; box-shadow: var(--shadow); margin-bottom: 34px;
    display: grid; grid-template-columns: 250px 1fr; gap: 34px; transition: var(--transition);
}
.solution-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
.solution-side { border-right: 1px dashed var(--border-color); padding-right: 26px; }
.solution-side i { font-size: 40px; color: var(--primary-color); margin-bottom: 12px; }
.solution-side h3 { font-size: 21px; margin-bottom: 8px; }
.solution-side .solution-motto { color: var(--primary-color); font-size: 14px; font-weight: 600; }
.solution-main h4 { font-size: 15px; color: var(--text-light); margin: 14px 0 8px; }
.solution-main h4:first-child { margin-top: 0; }
.solution-main ul { list-style: none; }
.solution-main li { padding: 4px 0 4px 22px; position: relative; font-size: 14.5px; color: var(--text-color); }
.solution-main li::before { content: '›'; position: absolute; left: 4px; color: var(--primary-color); font-weight: 700; }

/* ===== 关于我们 ===== */
.about-intro { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 50px; align-items: center; }
.about-intro h2 { font-size: 30px; margin-bottom: 18px; }
.about-intro p { color: var(--text-light); margin-bottom: 14px; font-size: 15.5px; }
.company-card {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-darker));
    color: #fff; border-radius: 18px; padding: 36px 32px; box-shadow: var(--shadow-hover);
}
.company-card h3 { font-size: 21px; margin-bottom: 14px; }
.company-card ul { list-style: none; }
.company-card li { padding: 7px 0; font-size: 14.5px; opacity: 0.92; display: flex; gap: 10px; }
.company-card li i { width: 18px; margin-top: 4px; opacity: .8; }
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding-left: 30px; }
.timeline::before {
    content: ''; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px;
    background: linear-gradient(var(--primary-light), var(--primary-color));
}
.timeline-item { position: relative; padding: 0 0 30px 26px; }
.timeline-item::before {
    content: ''; position: absolute; left: -28px; top: 6px; width: 14px; height: 14px;
    border-radius: 50%; background: #fff; border: 3px solid var(--primary-color);
}
.timeline-item b { display: block; font-size: 17px; color: var(--primary-color); margin-bottom: 4px; }
.timeline-item h4 { font-size: 16px; margin-bottom: 4px; }
.timeline-item p { color: var(--text-light); font-size: 14px; }
.ip-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.ip-card {
    background: #fff; border: 1px solid var(--border-color); border-radius: 14px;
    padding: 22px 24px; box-shadow: var(--shadow);
}
.ip-card .ip-type {
    display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 12px;
    border-radius: 14px; margin-bottom: 10px;
    background: var(--bg-tint); color: var(--primary-dark);
}
.ip-card .ip-type.patent { background: #fef3c7; color: #92400e; }
.ip-card h4 { font-size: 16px; margin-bottom: 6px; }
.ip-card p { font-size: 13.5px; color: var(--text-light); }

/* ===== 联系我们 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; }
.info-card {
    background: #fff; border: 1px solid var(--border-color); border-radius: 14px;
    padding: 24px; display: flex; gap: 16px; align-items: flex-start; margin-bottom: 18px;
    box-shadow: var(--shadow);
}
.info-card i {
    font-size: 22px; color: var(--primary-color); width: 46px; height: 46px; flex: none;
    background: var(--bg-tint); border-radius: 12px; display: flex; align-items: center; justify-content: center;
}
.info-card h4 { font-size: 15px; margin-bottom: 3px; }
.info-card p { font-size: 14px; color: var(--text-light); }
.contact-form {
    background: #fff; border: 1px solid var(--border-color); border-radius: 18px;
    padding: 34px; box-shadow: var(--shadow);
}
.contact-form h3 { font-size: 21px; margin-bottom: 22px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 14px; border: 1px solid var(--border-color);
    border-radius: 10px; font-size: 14.5px; font-family: inherit; transition: var(--transition);
    background: var(--bg-light);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary-color); background: #fff;
    box-shadow: 0 0 0 3px rgba(14,116,144,0.12);
}
.btn-submit { width: 100%; background: var(--primary-color); color: #fff; padding: 14px; font-size: 16px; border: none; border-radius: 10px; cursor: pointer; font-weight: 600; transition: var(--transition); }
.btn-submit:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    background: var(--bg-light); border-radius: 16px; padding: 30px 24px; text-align: center;
    transition: var(--transition);
}
.service-card:hover { background: #fff; box-shadow: var(--shadow); transform: translateY(-4px); }
.service-card i { font-size: 34px; color: var(--primary-color); margin-bottom: 12px; }
.service-card h4 { font-size: 17px; margin-bottom: 8px; }
.service-card p { font-size: 13.5px; color: var(--text-light); }

/* ===== 页脚 ===== */
.footer { background: var(--bg-dark); color: #fff; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; margin-bottom: 40px; }
.footer-brand h3 { font-size: 20px; margin-bottom: 10px; }
.footer-brand p { opacity: 0.7; margin-bottom: 5px; font-size: 14px; }
.footer-domain { font-size: 14px; opacity: 0.5; }
.footer-links h4, .footer-company h4 { font-size: 16px; margin-bottom: 20px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.7); font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-company p { opacity: 0.7; margin-bottom: 10px; font-size: 14px; }
.footer-company a { color: rgba(255,255,255,0.7); }
.footer-company a:hover { color: #fff; }
.footer-sites { margin-top: 15px; }
.footer-sites a {
    display: inline-block; background: rgba(255,255,255,0.1);
    padding: 6px 12px; border-radius: 6px; font-size: 13px;
}
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 30px; text-align: center; }
.footer-bottom p { opacity: 0.5; font-size: 14px; }
.footer-icp { margin-top: 10px !important; font-size: 13px; }
.footer-icp a { color: #94a3b8 !important; }

/* ===== 入场动画 ===== */
.module-card, .capability-item, .scenario-item, .judge-card, .feature-item, .ip-card, .info-card, .solution-card, .service-card, .timeline-item {
    opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease;
}
.animate-in { opacity: 1 !important; transform: translateY(0) !important; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero .container { grid-template-columns: 1fr; text-align: center; }
    .hero-visual { display: none; }
    .hero-metrics { justify-content: center; }
    .modules-grid { grid-template-columns: repeat(2, 1fr); }
    .scenarios-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .judge-grid { grid-template-columns: 1fr; }
    .product-body, .product-body.reverse { grid-template-columns: 1fr; }
    .product-body.reverse .product-shot { order: 0; }
    .about-intro, .contact-grid, .ip-grid { grid-template-columns: 1fr; }
    .solution-card { grid-template-columns: 1fr; }
    .solution-side { border-right: none; border-bottom: 1px dashed var(--border-color); padding: 0 0 18px; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .service-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed; top: 70px; left: 0; right: 0; background: #fff;
        flex-direction: column; padding: 20px; gap: 0; box-shadow: var(--shadow); display: none;
        max-height: 70vh; overflow-y: auto;
    }
    .nav-menu.active { display: flex; }
    .nav-menu li { padding: 10px 0; }
    .dropdown-menu {
        position: static; box-shadow: none; padding-left: 20px;
        opacity: 1; visibility: visible; transform: none; display: none;
    }
    .dropdown:hover .dropdown-menu { display: block; }
    .hero h1 { font-size: 34px; }
    .hero-subtitle { font-size: 18px; }
    .hero-btns { flex-direction: column; }
    .capabilities-flow { flex-direction: column; }
    .flow-arrow { transform: rotate(90deg); }
    .capability-item { max-width: none; }
    .modules-grid, .modules-grid.cols-3, .scenarios-grid, .stats-grid, .feature-grid, .shot-row, .footer-grid { grid-template-columns: 1fr; }
    .section-header h2, .page-header h1 { font-size: 27px; }
    .page-header { padding: 120px 0 50px; }
    .logo-text { font-size: 20px; }
    .stat-item b { font-size: 32px; }
}