/* ===== Reset & Variables ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --navy: #1a2a5e;
    --red: #e41e2b;
    --red-dark: #c21825;
    --gold: #f5a623;
    --text: #2d3748;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-light: #f8fafc;
    --bg-navy: #0f1b3d;
    --radius: 12px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
}
html { scroll-behavior: smooth; }
body {
    font-family: 'Noto Sans SC', -apple-system, sans-serif;
    color: var(--text);
    line-height: 1.75;
    overflow-x: hidden;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

/* ===== Buttons ===== */
.btn {
    display: inline-block; padding: 14px 36px; border-radius: 50px;
    font-size: 16px; font-weight: 600; transition: all .3s; cursor: pointer;
}
.btn-red { background: var(--red); color: #fff; }
.btn-red:hover { background: var(--red-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(228,30,43,.3); }
.btn-outline { border: 2px solid #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--navy); }
.btn-lg { padding: 16px 48px; font-size: 18px; }

/* ===== Navbar ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,.97); backdrop-filter: blur(10px);
    box-shadow: 0 1px 4px rgba(0,0,0,.06); transition: all .3s;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-img { height: 60px; }
.logo-name { font-size: 16px; font-weight: 700; color: var(--navy); white-space: nowrap; }
.nav-links { display: flex; list-style: none; gap: 28px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--text); transition: color .3s; }
.nav-links a:hover { color: var(--red); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.hamburger span { width: 24px; height: 2.5px; background: var(--navy); border-radius: 2px; transition: .3s; }

/* ===== Hero ===== */
.hero {
    position: relative; min-height: 100vh; display: flex; align-items: center;
    background: linear-gradient(135deg, var(--navy) 0%, #1e3a7a 60%, #142652 100%);
}
.hero-bg {
    position: absolute; inset: 0; opacity: .1;
    background: radial-gradient(circle at 70% 50%, var(--red) 0%, transparent 50%),
                radial-gradient(circle at 20% 80%, var(--gold) 0%, transparent 40%);
}
.hero-content { position: relative; text-align: center; color: #fff; padding: 100px 0 60px; }
.hero-brand { font-size: clamp(28px, 4vw, 40px); font-weight: 900; letter-spacing: 6px; margin-bottom: 20px; }
.hero h1 { font-size: clamp(28px, 5vw, 52px); font-weight: 900; margin-bottom: 20px; line-height: 1.3; }
.text-red { color: var(--red); }
.hero-sub { font-size: clamp(15px, 2vw, 20px); opacity: .9; margin-bottom: 40px; font-weight: 300; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Highlights ===== */
.highlights { background: var(--bg-light); padding: 50px 0; }
.highlights-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; text-align: center; }
.hl-num { display: block; font-size: 32px; font-weight: 900; color: var(--navy); }
.hl-num small { font-size: 24px; }
.hl-text { font-size: 13px; color: var(--text-light); margin-top: 4px; }

/* ===== Section Common ===== */
.section { padding: 80px 0; }
.section:nth-child(even) { background: var(--bg-light); }
.section-title {
    text-align: center; font-size: 30px; font-weight: 700; color: var(--navy);
    margin-bottom: 48px; position: relative;
}
.section-title::after {
    content: ''; display: block; width: 50px; height: 3px;
    background: var(--red); margin: 12px auto 0; border-radius: 2px;
}

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about-text .lead { font-size: 18px; font-weight: 500; color: var(--navy); margin-bottom: 16px; }
.about-text p { margin-bottom: 12px; color: var(--text-light); }
.highlight-text { color: var(--navy) !important; font-weight: 600; font-style: italic; margin-top: 16px !important; }
.values { display: flex; gap: 20px; margin-top: 24px; }
.value { background: var(--bg-light); padding: 12px 20px; border-radius: 8px; font-weight: 500; font-size: 14px; }
.value span { margin-right: 6px; }
.about-img img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* ===== Courses ===== */
.courses-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; margin-bottom: 40px; }
.course-card {
    background: #fff; border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); transition: transform .3s;
}
.course-card:hover { transform: translateY(-4px); }
.course-card { position: relative; overflow: hidden; }
.course-card img { width: 100%; height: 300px; object-fit: cover; object-position: top; }
.course-info { padding: 20px; }
.course-info h3 { font-size: 18px; color: var(--navy); margin-bottom: 8px; }
.course-info p { font-size: 14px; color: var(--text-light); }
.course-features { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.cf-item {
    background: #fff; padding: 16px 20px; border-radius: 8px; font-size: 15px;
    font-weight: 500; box-shadow: 0 2px 8px rgba(0,0,0,.04); text-align: center;
}

/* ===== Teacher ===== */
.teacher { background: var(--bg-navy) !important; color: #fff; }
.teacher .section-title { color: #fff; font-size: 34px; }
.teacher .section-title::after { background: var(--gold); }
.teacher-showcase { text-align: center; }
.teacher-images { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 800px; margin: 0 auto 40px; }
.teacher-img { width: 100%; height: 300px; object-fit: cover; border-radius: var(--radius); box-shadow: 0 4px 20px rgba(0,0,0,.3); }
.teacher-info { max-width: 100%; margin: 0 auto; text-align: center; }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; justify-content: center; }
.badge {
    background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
    padding: 12px 26px; border-radius: 24px; font-size: 20px; font-weight: 500; color: var(--gold);
}
.teacher-info p { color: rgba(255,255,255,.8); margin-bottom: 12px; font-size: 16px; line-height: 1.8; }

/* ===== Campus ===== */
.campus-gallery { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.campus-gallery img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; height: 220px; object-fit: cover; }

/* ===== Summer ===== */
.summer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.summer-poster img { border-radius: var(--radius); box-shadow: var(--shadow); }
.summer-info h3 { font-size: 24px; color: var(--navy); margin-bottom: 8px; }
.summer-slogan { color: var(--text-light); font-size: 16px; margin-bottom: 20px; }
.summer-points { list-style: none; margin-bottom: 24px; }
.summer-points li { padding: 6px 0; font-size: 16px; }
.summer-details { background: var(--bg-light); padding: 20px; border-radius: 8px; margin-bottom: 24px; }
.summer-details p { margin-bottom: 6px; font-size: 15px; }
.summer-price { font-size: 20px; color: var(--red); font-weight: 700; margin-top: 12px; }
.summer-price span { font-size: 36px; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.contact-card {
    text-align: center; background: #fff; padding: 36px 24px;
    border-radius: var(--radius); box-shadow: var(--shadow);
}
.contact-icon { font-size: 36px; margin-bottom: 12px; }
.contact-card h4 { font-size: 18px; color: var(--navy); margin-bottom: 8px; }
.contact-card p { color: var(--text-light); font-size: 14px; line-height: 1.8; }
.contact-note { font-size: 13px !important; color: var(--text-light); margin-top: 6px; }

/* ===== Footer ===== */
.footer { background: var(--bg-navy); color: #fff; padding: 40px 0 20px; text-align: center; }
.footer-logo { height: 50px; margin: 0 auto 12px; border-radius: 6px; }
.footer-top p { color: rgba(255,255,255,.7); font-size: 14px; margin-bottom: 20px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 16px; }
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,.4); }

/* ===== Responsive ===== */
@media (max-width: 968px) {
    .nav-links { display: none; position: absolute; top: 70px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 20px; gap: 16px; box-shadow: 0 4px 12px rgba(0,0,0,.1); }
    .nav-links.active { display: flex; }
    .hamburger { display: flex; }
    .highlights-grid { grid-template-columns: repeat(2,1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .courses-grid { grid-template-columns: 1fr; }
    .course-features { grid-template-columns: repeat(2,1fr); }
    .teacher-images { grid-template-columns: 1fr; max-width: 400px; }
    .campus-gallery { grid-template-columns: repeat(2,1fr); }
    .summer-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
    .highlights-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
    .hl-num { font-size: 24px; }
    .course-features { grid-template-columns: 1fr; }
    .campus-gallery { grid-template-columns: 1fr; }
    .teacher-images { grid-template-columns: 1fr; }
    .values { flex-direction: column; gap: 10px; }
    .section { padding: 50px 0; }
}

/* ===== Course Path ===== */
.course-path {
    background: linear-gradient(135deg, var(--navy), #2c4a8a);
    border-radius: var(--radius);
    padding: 36px 40px;
    margin-bottom: 40px;
    color: #fff;
}
.path-title { font-size: 20px; margin-bottom: 24px; text-align: center; }
.path-steps { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.path-step {
    display: flex; align-items: center; gap: 12px;
    background: rgba(255,255,255,.1); padding: 16px 24px; border-radius: 10px;
}
.step-num { font-size: 28px; font-weight: 900; color: var(--gold); }
.step-content h4 { font-size: 16px; margin-bottom: 2px; }
.step-content p { font-size: 13px; opacity: .8; }
.path-arrow { font-size: 24px; color: var(--gold); }
@media (max-width: 640px) {
    .path-steps { flex-direction: column; }
    .path-arrow { transform: rotate(90deg); }
}

/* ===== Harvest ===== */
.harvest { background: var(--bg-light); }
.harvest-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 40px; text-align: center; margin-bottom: 40px; }
.harvest-item { position: relative; }
.harvest-num { display: block; font-size: 48px; font-weight: 900; color: var(--navy); margin-bottom: 8px; }
.harvest-num small { font-size: 20px; font-weight: 500; }
.harvest-item p { font-size: 16px; color: var(--text); font-weight: 500; }
.harvest-item::after { content: ''; display: block; width: 30px; height: 3px; background: var(--navy); margin: 10px auto 12px; }
.harvest-cta { text-align: center; }
.btn-cta {
    display: inline-block; padding: 16px 48px; border-radius: 50px;
    font-size: 18px; font-weight: 600; color: #fff;
    background: linear-gradient(135deg, #f5a623, #f7c948);
    box-shadow: 0 4px 15px rgba(245,166,35,.4);
    transition: all .3s;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,166,35,.5); }
@media (max-width: 640px) { .harvest-grid { grid-template-columns: 1fr; gap: 24px; } }

/* ===== Hero Harvest ===== */
.hero-harvest { margin: 36px -50vw; margin-left: calc(-50vw + 50%); margin-right: calc(-50vw + 50%); width: 100vw; max-width: 100vw; padding: 0 5vw; }
.hero-harvest-title { text-align: center; font-size: 28px; font-weight: 700; color: #fff; margin-bottom: 8px; padding-bottom: 14px; border-bottom: 2px solid rgba(255,255,255,.3); }
.hero-harvest-items { display: flex; justify-content: space-between; padding-top: 24px; }
.hero-harvest-item { text-align: center; flex: 1; position: relative; }
.hero-harvest-item span { display: block; font-size: 36px; font-weight: 900; color: #fff; }
.hero-harvest-item span em { font-style: normal; display: inline-block; }
.hero-harvest-item span em::after { content: ''; display: block; width: 100%; height: 3px; background: rgba(255,255,255,.6); margin-top: 4px; }
.hero-harvest-item span small { font-size: 18px; font-weight: 500; }
.hero-harvest-item p { font-size: 16px; color: rgba(255,255,255,.8); margin-top: 10px; }

/* ===== Articles ===== */
.articles-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.article-card {
    background: #fff; padding: 28px; border-radius: var(--radius);
    box-shadow: var(--shadow); transition: transform .3s, box-shadow .3s;
    display: block;
}
.article-card:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(0,0,0,.12); }
.article-card h3 { font-size: 17px; color: var(--navy); margin-bottom: 12px; line-height: 1.5; }
.article-card p { font-size: 14px; color: var(--text-light); line-height: 1.8; }
@media (max-width: 968px) { .articles-grid { grid-template-columns: 1fr; } }

/* ===== Footer Info ===== */
.footer-info { margin-bottom: 16px; }
.footer-info p { font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 4px; }

/* ===== Article Page ===== */
.article-page { padding: 120px 0 80px; }
.article-page h1 { font-size: 28px; color: var(--navy); margin-bottom: 16px; line-height: 1.4; }
.article-meta { font-size: 14px; color: var(--text-light); margin-bottom: 32px; }
.article-body { max-width: 760px; margin: 0 auto; }
.article-body h2 { font-size: 22px; color: var(--navy); margin: 32px 0 16px; }
.article-body h3 { font-size: 18px; color: var(--navy); margin: 24px 0 12px; }
.article-body p { margin-bottom: 16px; color: var(--text); line-height: 1.9; font-size: 16px; }
.article-body ul, .article-body ol { margin: 16px 0; padding-left: 24px; }
.article-body li { margin-bottom: 8px; line-height: 1.8; color: var(--text); }
.article-cta { background: var(--bg-light); padding: 32px; border-radius: var(--radius); margin-top: 40px; text-align: center; }
.article-cta p { font-size: 16px; margin-bottom: 16px; }
.article-back { display: inline-block; margin-top: 40px; color: var(--red); font-weight: 500; }