/* ===== CSS Variables ===== */
:root {
  --green-900: #0f2d1f;
  --green-800: #1a3d2b;
  --green-700: #1e4d33;
  --green-600: #2d6a45;
  --green-400: #4a9e6b;
  --green-200: #a8d5b8;
  --green-100: #d4eddc;
  --green-50:  #f0f8f2;
  --gold:      #c8a96e;
  --gold-light:#e8d5a8;
  --white:     #ffffff;
  --off-white: #fafaf8;
  --gray-100:  #f4f4f2;
  --gray-300:  #d0d0cc;
  --gray-500:  #8a8a84;
  --gray-700:  #4a4a46;
  --gray-900:  #1a1a18;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  --nav-h: 72px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===== Utility ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }
.tag {
  display: inline-block;
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--green-600);
  padding: 4px 12px;
  border: 1px solid var(--green-200);
  border-radius: 20px;
  margin-bottom: 20px;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 14px; font-weight: 500;
  border-radius: 4px; cursor: pointer;
  transition: all 0.25s ease; border: none;
}
.btn-primary { background: var(--green-800); color: var(--white); }
.btn-primary:hover { background: var(--green-700); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(15,45,31,0.2); }
.btn-outline { background: transparent; color: var(--green-800); border: 1.5px solid var(--green-700); }
.btn-outline:hover { background: var(--green-800); color: var(--white); }
.btn-ghost-white { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.5); }
.btn-ghost-white:hover { background: rgba(255,255,255,0.12); border-color: var(--white); }

/* ===== Navigation ===== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center;
  transition: box-shadow 0.3s;
}
nav.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.nav-inner {
  width: 100%; max-width: 1200px;
  margin: 0 auto; padding: 0 40px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 22px; font-weight: 500;
  color: var(--green-900); letter-spacing: 0.02em;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-main { font-size: 22px; font-weight: 500; }
.logo-sub {
  font-family: var(--font-body);
  font-size: 10px; font-weight: 400;
  letter-spacing: 0.06em; color: var(--gray-500);
  text-transform: uppercase;
}
.logo-mark {
  width: 34px; height: 34px;
  background: var(--green-800);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; overflow: hidden;
}
.logo-mark svg { width: 18px; height: 18px; fill: none; stroke: var(--white); stroke-width: 1.8; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-item { position: relative; }
.nav-link {
  display: block; padding: 8px 14px;
  font-size: 14px; font-weight: 400;
  color: var(--gray-700); border-radius: 6px;
  transition: all 0.2s; cursor: pointer; white-space: nowrap;
}
.nav-link:hover { color: var(--green-700); background: var(--green-50); }
.nav-link.has-dropdown::after {
  content: '';
  display: inline-block; width: 6px; height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  margin-left: 5px; vertical-align: middle; opacity: 0.6;
}
.dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: 10px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.1);
  padding: 8px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  transition-delay: 0s;
}
.nav-item:hover .dropdown {
  opacity: 1; pointer-events: all;
  transform: translateX(-50%) translateY(0);
  transition-delay: 0s;
}
.nav-item:not(:hover) .dropdown {
  transition-delay: 0.18s;
}
/* 填补菜单项与下拉之间的间隙，防止鼠标移动时意外触发 mouseleave */
.nav-item::after {
  content: '';
  position: absolute;
  bottom: -8px; left: 0;
  width: 100%; height: 8px;
}
.dropdown a { display: block; padding: 9px 14px; font-size: 13.5px; color: var(--gray-700); border-radius: 6px; transition: all 0.15s; }
.dropdown a:hover { background: var(--green-50); color: var(--green-700); }
.dropdown-group { margin-bottom: 4px; }
.dropdown-label {
  display: block; padding: 6px 14px 2px;
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gray-500);
}
.nav-cta { display: flex; align-items: center; gap: 10px; }
.hamburger { display: none; }

/* ===== Hero ===== */
#hero {
  min-height: 100vh;
  background: var(--green-900);
  display: flex; flex-direction: column; justify-content: flex-end;
  position: relative; overflow: hidden;
  padding-top: var(--nav-h);
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(45,106,69,0.35) 0%, transparent 60%),
    radial-gradient(ellipse 50% 70% at 20% 80%, rgba(200,169,110,0.08) 0%, transparent 50%),
    var(--green-900);
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
}
.hero-content {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto; padding: 0 40px;
  padding-bottom: 100px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: end;
}
.hero-eyebrow {
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 28px;
  opacity: 0; animation: fadeUp 0.8s 0.2s forwards;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(52px, 6vw, 86px); font-weight: 300;
  line-height: 1.08; color: var(--white);
  letter-spacing: -0.01em; margin-bottom: 28px;
  opacity: 0; animation: fadeUp 0.8s 0.35s forwards;
}
.hero-title em { font-style: italic; color: var(--gold); }
.hero-desc {
  font-size: 16px; font-weight: 300;
  color: rgba(255,255,255,0.65);
  line-height: 1.8; max-width: 460px; margin-bottom: 44px;
  opacity: 0; animation: fadeUp 0.8s 0.5s forwards;
}
.hero-actions {
  display: flex; gap: 14px; flex-wrap: wrap;
  opacity: 0; animation: fadeUp 0.8s 0.65s forwards;
}
.hero-right {
  display: flex; flex-direction: column; gap: 16px; padding-bottom: 8px;
  opacity: 0; animation: fadeUp 0.8s 0.8s forwards;
}
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px; padding: 24px;
}
.stat-card .num { font-family: var(--font-display); font-size: 48px; font-weight: 300; color: var(--white); line-height: 1; margin-bottom: 6px; }
.stat-card .num span { font-size: 28px; color: var(--gold); }
.stat-card .label { font-size: 12px; color: rgba(255,255,255,0.5); letter-spacing: 0.05em; }
.hero-badge {
  background: rgba(200,169,110,0.12);
  border: 1px solid rgba(200,169,110,0.3);
  border-radius: 10px; padding: 18px 22px;
  display: flex; align-items: center; gap: 14px;
}
.hero-badge-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  background: rgba(200,169,110,0.2); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.hero-badge-text { font-size: 13px; color: rgba(255,255,255,0.7); }
.hero-badge-text strong { display: block; color: var(--gold-light); font-weight: 500; margin-bottom: 2px; }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.35); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; animation: bounce 2s infinite;
}
.scroll-line { width: 1px; height: 40px; background: linear-gradient(to bottom, rgba(255,255,255,0.3), transparent); }

/* ===== Page Header (sub-pages) ===== */
.page-header {
  padding-top: calc(var(--nav-h) + 60px);
  padding-bottom: 0;
}

/* ===== About Section ===== */
#about { background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 52px); font-weight: 300; line-height: 1.15;
  color: var(--green-900); margin-bottom: 24px; letter-spacing: -0.01em;
}
.section-title em { font-style: italic; color: var(--green-600); }
.section-body { font-size: 15.5px; color: var(--gray-700); line-height: 1.85; margin-bottom: 20px; }
.about-milestones { margin-top: 48px; }
.milestone { display: flex; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--gray-100); }
.milestone:last-child { border-bottom: none; }
.milestone-year { font-family: var(--font-display); font-size: 22px; font-weight: 300; color: var(--green-400); min-width: 64px; }
.milestone-text { font-size: 14px; color: var(--gray-700); line-height: 1.6; }
.milestone-text strong { color: var(--green-800); }
.founder-card { background: var(--green-50); border-radius: 20px; overflow: hidden; }
.founder-img {
  width: 100%; aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--green-200), var(--green-100));
  display: flex; align-items: center; justify-content: center;
  font-size: 48px; color: var(--green-400);
}
.founder-info { padding: 32px; }
.founder-name { font-family: var(--font-display); font-size: 26px; font-weight: 400; color: var(--green-900); margin-bottom: 4px; }
.founder-title { font-size: 13px; color: var(--green-600); letter-spacing: 0.05em; margin-bottom: 16px; }
.founder-bio { font-size: 14px; color: var(--gray-700); line-height: 1.75; }

/* ===== Services Section ===== */
#services { background: var(--off-white); }
.services-header { text-align: center; max-width: 600px; margin: 0 auto 70px; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  background: var(--white); border-radius: 16px; padding: 36px 32px;
  border: 1px solid var(--gray-100); transition: all 0.3s ease;
  cursor: pointer; position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--green-600), var(--green-400));
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 20px 48px rgba(0,0,0,0.08); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 52px; height: 52px; background: var(--green-50); border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 22px; transition: background 0.3s;
}
.service-card:hover .service-icon { background: var(--green-100); }
.service-name { font-size: 18px; font-weight: 500; color: var(--green-900); margin-bottom: 10px; }
.service-desc { font-size: 13.5px; color: var(--gray-500); line-height: 1.7; margin-bottom: 20px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.service-tag {
  font-size: 11px; color: var(--green-600);
  background: var(--green-50); padding: 3px 10px; border-radius: 20px;
  border: 1px solid var(--green-100);
}
.service-card.featured { grid-column: span 2; display: flex; gap: 40px; align-items: flex-start; }
.service-card.featured .service-body { flex: 1; }
.service-card.featured .service-detail { flex: 1; background: var(--green-50); border-radius: 10px; padding: 20px; }
.service-detail-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 0;
  font-size: 13px; color: var(--gray-700); border-bottom: 1px solid var(--green-100);
}
.service-detail-item:last-child { border-bottom: none; }
.service-detail-item::before { content: '→'; color: var(--green-400); font-size: 12px; }

/* ===== Results Section ===== */
#results { background: var(--green-900); overflow: hidden; position: relative; }
.results-bg { position: absolute; inset: 0; background: radial-gradient(ellipse 60% 80% at 80% 50%, rgba(45,106,69,0.4) 0%, transparent 60%); }
.results-header { position: relative; z-index: 1; text-align: center; margin-bottom: 70px; }
.results-title { font-family: var(--font-display); font-size: clamp(36px, 4vw, 52px); font-weight: 300; color: var(--white); margin-bottom: 16px; }
.results-sub { font-size: 15px; color: rgba(255,255,255,0.55); }
.year-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 52px; position: relative; z-index: 1; }
.year-tab {
  padding: 10px 28px; border-radius: 30px; cursor: pointer;
  font-size: 14px; font-weight: 500;
  border: 1.5px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6); background: transparent; transition: all 0.25s;
}
.year-tab.active, .year-tab:hover { background: var(--white); color: var(--green-900); border-color: var(--white); }
.logo-wall { position: relative; z-index: 1; }
.logo-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin-bottom: 50px; }
.uni-badge {
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px; padding: 16px 12px; text-align: center;
  transition: all 0.25s; cursor: pointer;
}
.uni-badge:hover { background: rgba(255,255,255,0.14); transform: translateY(-2px); }
.uni-badge .uni-short { font-family: var(--font-display); font-size: 18px; font-weight: 400; color: var(--white); margin-bottom: 4px; }
.uni-badge .uni-name { font-size: 10px; color: rgba(255,255,255,0.45); letter-spacing: 0.05em; }
.cases-title { font-family: var(--font-display); font-size: 28px; font-weight: 300; color: var(--white); margin-bottom: 28px; }
.cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.case-card {
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px; padding: 28px; transition: all 0.3s;
}
.case-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-3px); }
.case-tag { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold); margin-bottom: 12px; }
.case-school { font-family: var(--font-display); font-size: 22px; font-weight: 400; color: var(--white); margin-bottom: 6px; }
.case-program { font-size: 12px; color: rgba(255,255,255,0.5); margin-bottom: 16px; }
.case-student { display: flex; align-items: center; gap: 10px; }
.case-avatar {
  width: 36px; height: 36px; border-radius: 50%; background: var(--green-600);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--white); font-weight: 500;
}
.case-info .name { font-size: 13px; font-weight: 500; color: var(--white); }
.case-info .meta { font-size: 11px; color: rgba(255,255,255,0.45); }

/* ===== Alumni Section ===== */
#alumni { background: var(--white); }
.alumni-header { text-align: center; max-width: 560px; margin: 0 auto 64px; }
.alumni-interviews { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-bottom: 60px; }
.interview-card { border-radius: 16px; overflow: hidden; border: 1px solid var(--gray-100); transition: all 0.3s; cursor: pointer; }
.interview-card:hover { box-shadow: 0 16px 40px rgba(0,0,0,0.1); transform: translateY(-3px); }
.interview-cover {
  height: 180px;
  background: linear-gradient(135deg, var(--green-700), var(--green-500));
  display: flex; align-items: center; justify-content: center;
  font-size: 40px; position: relative;
}
.interview-cover .play-btn { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0.2); opacity: 0; transition: opacity 0.25s; }
.interview-card:hover .play-btn { opacity: 1; }
.play-btn svg { width: 48px; height: 48px; fill: white; }
.interview-body { padding: 22px; }
.interview-school { font-size: 11px; color: var(--green-600); font-weight: 500; letter-spacing: 0.08em; margin-bottom: 8px; }
.interview-name { font-size: 17px; font-weight: 500; color: var(--green-900); margin-bottom: 6px; }
.interview-excerpt { font-size: 13px; color: var(--gray-500); line-height: 1.6; }
.alumni-activities { background: var(--green-50); border-radius: 20px; padding: 48px; }
.act-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.act-title { font-family: var(--font-display); font-size: 28px; font-weight: 300; color: var(--green-900); }
.act-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.act-item {
  background: var(--white); border-radius: 12px; padding: 20px 22px;
  display: flex; gap: 16px; align-items: flex-start;
  border: 1px solid var(--green-100); transition: all 0.2s;
}
.act-item:hover { border-color: var(--green-300, #7bc49a); box-shadow: 0 4px 16px rgba(0,0,0,0.05); }
.act-date { text-align: center; min-width: 44px; }
.act-date .day { font-family: var(--font-display); font-size: 28px; font-weight: 300; color: var(--green-700); line-height: 1; }
.act-date .month { font-size: 11px; text-transform: uppercase; color: var(--green-400); letter-spacing: 0.1em; }
.act-info .act-name { font-size: 15px; font-weight: 500; color: var(--green-900); margin-bottom: 4px; }
.act-info .act-desc { font-size: 12.5px; color: var(--gray-500); }

/* ===== Guide Section ===== */
#guide { background: var(--gray-100); }
.guide-header { display: flex; align-items: flex-end; margin-bottom: 48px; }
.guide-cards-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.guide-item {
  background: var(--white); border-radius: 12px; padding: 22px;
  border: 1px solid var(--gray-100); cursor: pointer; transition: all 0.2s; display: flex; gap: 14px;
}
.guide-item:hover { border-color: var(--green-200); box-shadow: 0 4px 16px rgba(0,0,0,0.05); }
.guide-item-tag { flex-shrink: 0; width: 4px; border-radius: 4px; background: var(--green-300, #7bc49a); }
.guide-item-title { font-size: 14px; font-weight: 500; color: var(--green-900); margin-bottom: 6px; line-height: 1.4; }
.guide-item-meta { font-size: 11px; color: var(--gray-500); }

/* ===== Contact Section ===== */
#contact { background: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr; max-width: 720px; margin: 0 auto; }
.contact-intro { font-size: 15px; color: var(--gray-700); line-height: 1.85; margin-bottom: 40px; }
.contact-methods { display: flex; flex-direction: column; gap: 16px; margin-bottom: 40px; }
.contact-method {
  display: flex; align-items: center; gap: 16px; padding: 18px 20px;
  background: var(--green-50); border-radius: 12px; border: 1px solid var(--green-100);
  transition: all 0.2s; cursor: pointer;
}
.contact-method:hover { border-color: var(--green-200); box-shadow: 0 4px 16px rgba(0,0,0,0.05); }
.cm-icon { font-size: 20px; width: 44px; height: 44px; background: var(--white); border-radius: 10px; display: flex; align-items: center; justify-content: center; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.cm-info .cm-label { font-size: 12px; color: var(--gray-500); margin-bottom: 2px; }
.cm-info .cm-value { font-size: 14px; font-weight: 500; color: var(--green-800); }
.social-links { display: flex; gap: 10px; flex-wrap: wrap; }
.social-link {
  display: flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 8px;
  font-size: 13px; font-weight: 500; border: 1.5px solid var(--gray-300);
  color: var(--gray-700); transition: all 0.2s;
}
.social-link:hover { border-color: var(--green-600); color: var(--green-700); background: var(--green-50); }
.social-link svg { width: 18px; height: 18px; }
.form-title { font-family: var(--font-display); font-size: 28px; font-weight: 300; color: var(--green-900); margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--gray-700); margin-bottom: 8px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 12px 16px;
  border: 1.5px solid var(--gray-300); border-radius: 8px;
  font-family: var(--font-body); font-size: 14px; color: var(--gray-900);
  background: var(--white); transition: all 0.2s; outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--green-400); box-shadow: 0 0 0 3px rgba(74,158,107,0.12);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.join-banner {
  margin-top: 40px; padding: 28px 32px;
  background: linear-gradient(135deg, var(--green-800), var(--green-700));
  border-radius: 14px; display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.join-text h3 { font-size: 18px; font-weight: 500; color: var(--white); margin-bottom: 6px; }
.join-text p { font-size: 13px; color: rgba(255,255,255,0.65); }

/* ===== Footer ===== */
footer { background: var(--green-900); padding: 72px 0 36px; }
.footer-main { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.footer-logo .name { font-family: var(--font-display); font-size: 22px; color: var(--white); }
.footer-tagline { font-size: 13.5px; color: rgba(255,255,255,0.5); line-height: 1.75; max-width: 260px; margin-bottom: 28px; }
.footer-social { display: flex; gap: 10px; }
.footer-social-link {
  width: 38px; height: 38px; border: 1px solid rgba(255,255,255,0.15); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: rgba(255,255,255,0.6); transition: all 0.2s;
}
.footer-social-link:hover { border-color: rgba(255,255,255,0.4); color: var(--white); background: rgba(255,255,255,0.08); }
.footer-col h4 { font-size: 13px; font-weight: 500; color: var(--white); margin-bottom: 18px; letter-spacing: 0.06em; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 13px; color: rgba(255,255,255,0.45); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; }
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.3); }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { font-size: 12px; color: rgba(255,255,255,0.3); transition: color 0.2s; }
.footer-bottom-links a:hover { color: rgba(255,255,255,0.7); }

/* ===== QR Hint ===== */
.qr-hint {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: rgba(255,255,255,0.45);
  cursor: pointer; margin-top: 8px; transition: color 0.2s;
}
.qr-hint:hover { color: rgba(255,255,255,0.8); }

/* ===== QR Modal ===== */
#qrModal { display:flex !important; opacity:0; pointer-events:none; transition:opacity 0.25s; }
#qrModal.active { opacity:1; pointer-events:all; }

/* ===== Animations ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ===== Scroll reveal ===== */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .container { padding: 0 24px; }
  .section { padding: 72px 0; }
  .hero-content { grid-template-columns: 1fr; gap: 40px; padding-bottom: 60px; }
  .hero-right { display: none; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .service-card.featured { grid-column: span 2; }
  .logo-grid { grid-template-columns: repeat(4, 1fr); }
  .cases-grid, .alumni-interviews { grid-template-columns: 1fr 1fr; }
  .guide-cards-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 40px; }
  .nav-links, .nav-cta .btn { display: none; }
  .hamburger { display: block; background: none; border: none; cursor: pointer; padding: 8px; }
  .hamburger span { display: block; width: 22px; height: 2px; background: var(--gray-700); margin: 4px 0; border-radius: 2px; }
}
@media (max-width: 600px) {
  .services-grid { grid-template-columns: 1fr; }
  .service-card.featured { grid-column: span 1; flex-direction: column; }
  .logo-grid { grid-template-columns: repeat(3, 1fr); }
  .cases-grid, .alumni-interviews { grid-template-columns: 1fr; }
  .act-list { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .join-banner { flex-direction: column; }
}