/* ============================================================
   HUAXIAIMAGING TRAINING · Coursera 蓝白风格 v2
   蓝白专业 · 信息密度大 · 卡片网格 · 院校 logo · 证言 · FAQ
   ============================================================ */
:root {
  --c-primary:        #e3bc16;
  --c-primary-deep:   #b89a11;
  --c-primary-soft:   rgba(227, 188, 22, 0.15);
  --c-primary-badge:  rgba(227, 188, 22, 0.25);
  --c-text:           #fafaf7;
  --c-text-2:         #d4d4d4;
  --c-muted:          #888888;
  --c-bg:             #0a0a0a;
  --c-bg-soft:        #141414;
  --c-bg-soft-2:      #1a1a1a;
  --c-line:           rgba(255,255,255,0.08);
  --c-line-2:         rgba(255,255,255,0.15);
  --c-gold:           #fff3a0;
  --c-gold-2:         #ffd76e;
  --c-accent:         #FF6B35;
  --c-success:        #10B981;
  --c-warning:        #F59E0B;
  --radius:           12px;
  --radius-sm:        8px;
  --radius-lg:        16px;
  --radius-pill:      999px;
  --shadow-sm:        0 1px 2px rgba(0,0,0,0.4), 0 2px 8px rgba(0,0,0,0.3);
  --shadow:           0 2px 8px rgba(0,0,0,0.5), 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg:        0 8px 24px rgba(0,0,0,0.6), 0 16px 48px rgba(0,0,0,0.5);
  --t-fast:           0.18s ease;
  --t-norm:           0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; border-radius: 4px; }

/* ============================================================
   顶部 Nav
   ============================================================ */
.nav {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-line);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  background: rgba(10, 10, 10, 0.92);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0;
  gap: 24px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 18px;
  color: var(--c-text);
  letter-spacing: -0.01em;
}
.nav-brand .logo-mark {
  width: 36px; height: 36px;
  background: var(--c-primary);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 800;
  font-size: 18px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.nav-brand .logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.nav-brand .logo-text small {
  font-size: 10px; font-weight: 500;
  color: var(--c-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: 'Inter', sans-serif;
  margin-top: 2px;
}
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  font-weight: 500; font-size: 14px;
  color: var(--c-text-2);
  transition: color var(--t-fast);
  padding: 8px 0;
  position: relative;
}
.nav-links a:hover { color: var(--c-primary); }
.nav-links a.active { color: var(--c-primary); }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.nav-actions .btn-ghost {
  background: transparent;
  color: var(--c-text);
  border: 1px solid var(--c-line-2);
  padding: 0 16px;
  height: 38px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 14px;
  display: inline-flex; align-items: center;
  transition: all var(--t-fast);
}
.nav-actions .btn-ghost:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}
.nav-actions .btn-primary {
  background: var(--c-primary);
  color: #fff;
  border: 1px solid var(--c-primary);
  padding: 0 18px;
  height: 38px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex; align-items: center;
  transition: all var(--t-fast);
}
.nav-actions .btn-primary:hover {
  background: var(--c-primary-deep);
  border-color: var(--c-primary-deep);
  box-shadow: 0 4px 12px rgba(227, 188, 22, 0.3);
}

/* ============================================================
   Hero · 蓝色 banner + 搜索
   ============================================================ */
.hero {
  background: linear-gradient(180deg, rgba(227, 188, 22, 0.15) 0%, #0a0a0a 100%);
  padding: 48px 0 56px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(227, 188, 22, 0.08), transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: var(--c-bg);
  border: 1px solid var(--c-primary-badge);
  border-radius: var(--radius-pill);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--c-primary-deep);
  margin-bottom: 20px;
}
.hero h1 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-text);
  margin-bottom: 16px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, #e3bc16 0%, #b89a11 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.hero .lead {
  font-size: 17px;
  color: var(--c-text-2);
  margin-bottom: 32px;
  line-height: 1.6;
}
.hero-search {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  padding: 6px 6px 6px 20px;
  max-width: 640px;
  margin: 0 auto 24px;
  box-shadow: var(--shadow);
  gap: 8px;
}
.hero-search svg { width: 18px; height: 18px; color: var(--c-muted); flex-shrink: 0; }
.hero-search input {
  flex: 1;
  background: transparent;
  border: 0; outline: 0;
  padding: 12px 4px;
  font-size: 15px;
  color: var(--c-text);
  font-family: inherit;
}
.hero-search input::placeholder { color: var(--c-muted); }
.hero-search button {
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  padding: 0 24px;
  height: 44px;
  font-weight: 600;
  font-size: 14px;
  border: 0;
  cursor: pointer;
  transition: all var(--t-fast);
  flex-shrink: 0;
}
.hero-search button:hover { background: var(--c-primary-deep); }

.hero-tags {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 8px;
  margin-top: 8px;
}
.hero-tag {
  padding: 6px 14px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--c-text-2);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t-fast);
}
.hero-tag:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: var(--c-primary-soft);
}

/* Search Filter Pills */
.filter-bar {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-line);
  padding: 16px 0;
  position: sticky;
  top: 64px;
  z-index: 40;
}
.filter-inner {
  display: flex; gap: 16px; align-items: center;
  flex-wrap: wrap;
}
.filter-pills {
  display: flex; gap: 8px; flex-wrap: wrap;
  flex: 1;
}
.filter-pill {
  padding: 8px 16px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-text-2);
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: inherit;
  display: inline-flex; align-items: center; gap: 6px;
}
.filter-pill:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}
.filter-pill.active {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}
.filter-pill .icon {
  width: 14px; height: 14px;
}
.filter-pill .count {
  font-size: 11px;
  opacity: 0.7;
  font-weight: 600;
}
.filter-sort {
  display: flex; gap: 8px; align-items: center;
  font-size: 13px;
  color: var(--c-muted);
  font-weight: 500;
}
.filter-sort select {
  padding: 8px 32px 8px 12px;
  background: var(--c-bg) url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2.4'%3e%3cpath d='M6 9l6 6 6-6'/%3e%3c/svg%3e") no-repeat right 10px center;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--c-text);
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

/* ============================================================
   Section 通用
   ============================================================ */
.section { padding: 64px 0; }
.section-tight { padding: 40px 0; }
.section-soft { background: var(--c-bg-soft); }
.section-dark { background: var(--c-text); color: #fff; }

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  margin-bottom: 32px;
}
.section-head h2 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--c-text);
  letter-spacing: -0.02em;
}
.section-head h2 em {
  font-style: normal;
  color: var(--c-primary);
}
.section-head .lead {
  margin-top: 8px;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.6;
  max-width: 540px;
}
.section-head .btn-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--t-fast);
}
.section-head .btn-link:hover { gap: 8px; }

/* ============================================================
   Course Cards · Coursera 风格
   ============================================================ */
.course-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: auto;
  align-items: start;
  gap: 20px;
}
.course-card {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t-norm);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  text-align: left;
  width: 100%;
  height: auto;
  font: inherit;
  color: inherit;
}
.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--c-primary-badge);
}
.course-img {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #e3bc16 0%, #b89a11 100%);
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  border-bottom: 1px solid var(--c-line-2);
  box-shadow: inset 0 -20px 30px -20px rgba(0,0,0,0.6);
}
.course-img .badge {
  position: absolute;
  top: 12px; left: 12px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--c-primary-deep);
  font-family: 'Inter', sans-serif;
}
.course-img .level {
  position: absolute;
  top: 12px; right: 12px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
}
.course-img .globe {
  width: 60%;
  height: 60%;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.4), rgba(255,255,255,0.1) 60%, transparent);
  filter: blur(8px);
  position: absolute;
}
.course-img .grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px);
  background-size: 25px 25px;
}
.course-img .icon {
  position: relative;
  width: 56px; height: 56px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: #fff;
  z-index: 1;
}
.course-img .icon svg { width: 28px; height: 28px; }

.course-body {
  padding: 18px 16px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--c-bg-soft-2);
  border-top: 1px solid var(--c-line-2);
}
.course-institution {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text-2);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.course-institution .verified {
  width: 12px; height: 12px;
  color: var(--c-primary);
}
.course-title {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 15px;
  font-weight: 800;
  color: var(--c-text);
  line-height: 1.4;
  margin-bottom: 10px;
  min-height: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
  overflow-wrap: anywhere;
  writing-mode: horizontal-tb;
  padding-left: 10px;
  border-left: 3px solid var(--c-primary);
}
.course-institution {
  font-size: 10px;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.course-institution .verified {
  flex-shrink: 0;
}
.course-meta {
  display: flex; align-items: center; gap: 8px;
  font-size: 11px;
  color: var(--c-text-2);
  margin-bottom: 0;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--c-line);
  font-family: 'Inter', sans-serif;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-wrap: nowrap;
}
.course-rating {
  display: flex; align-items: center; gap: 4px;
}
.course-rating .stars {
  display: flex; gap: 1px;
  color: var(--c-gold);
}
.course-rating .stars svg { width: 12px; height: 12px; fill: currentColor; }
.course-rating .num { font-weight: 700; color: var(--c-text); font-size: 13px; }
.course-rating .reviews { color: var(--c-muted); }
.course-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--c-line);
}
.course-tag {
  font-size: 11px;
  padding: 4px 8px;
  background: var(--c-bg-soft);
  border-radius: var(--radius-sm);
  color: var(--c-text-2);
  font-weight: 500;
}

/* ============================================================
   Category Grid
   ============================================================ */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.cat-card {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all var(--t-norm);
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}
.cat-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.cat-card .icon {
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.cat-card .icon svg { width: 22px; height: 22px; }
.cat-card h3 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.3;
}
.cat-card .count {
  font-size: 12px;
  color: var(--c-muted);
  font-weight: 500;
  margin-top: auto;
}
.cat-card .arrow {
  position: absolute;
  top: 20px; right: 20px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--c-bg-soft);
  display: grid;
  place-items: center;
  color: var(--c-text-2);
  transition: all var(--t-fast);
}
.cat-card:hover .arrow { background: var(--c-primary); color: #fff; transform: translateX(2px); }
.cat-card .arrow svg { width: 14px; height: 14px; }

/* ============================================================
   Certificate Banner
   ============================================================ */
.cert-banner {
  background: linear-gradient(135deg, #e3bc16 0%, #b89a11 100%);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cert-banner::before {
  content: '';
  position: absolute;
  top: -50%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(227, 188, 22, 0.12), transparent 60%);
  pointer-events: none;
}
.cert-banner .left { position: relative; z-index: 1; }
.cert-banner .eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 12px;
}
.cert-banner h2 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.cert-banner p {
  font-size: 16px;
  opacity: 0.9;
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 480px;
}
.cert-banner .actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cert-banner .btn-light {
  background: #fff;
  color: var(--c-primary-deep);
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  transition: all var(--t-fast);
}
.cert-banner .btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }
.cert-banner .btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all var(--t-fast);
}
.cert-banner .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }

.cert-banner .right {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
}
.cert-card {
  background: #fff;
  color: var(--c-text);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 320px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  transform: rotate(-3deg);
  transition: transform var(--t-norm);
}
.cert-card:hover { transform: rotate(0); }
.cert-card .seal {
  width: 48px; height: 48px;
  background: var(--c-primary);
  border-radius: 50%;
  display: grid; place-items: center;
  margin-bottom: 16px;
  color: white;
  font-weight: 800;
  font-size: 16px;
}
.cert-card .label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 8px;
}
.cert-card h4 {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text-2);
  margin-bottom: 4px;
}
.cert-card h5 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 18px;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 16px;
  line-height: 1.3;
}
.cert-card .seal-line {
  border-top: 1px dashed var(--c-line);
  padding-top: 12px;
  font-size: 12px;
  color: var(--c-muted);
}
.cert-stack {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 4/3;
}
.cert-img {
  position: absolute;
  width: 75%;
  border-radius: var(--radius);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  background: #fff;
  padding: 6px;
  object-fit: contain;
  transition: transform var(--t-norm);
}
.cert-img-back {
  top: 0;
  right: 0;
  transform: rotate(4deg);
  z-index: 1;
}
.cert-img-front {
  bottom: 0;
  left: 0;
  transform: rotate(-3deg);
  z-index: 2;
}
.cert-stack:hover .cert-img-back { transform: rotate(2deg) translateY(-4px); }
.cert-stack:hover .cert-img-front { transform: rotate(-1deg) translateY(-4px); }

/* ============================================================
   Testimonials
   ============================================================ */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.testimonial {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 0;
  transition: all var(--t-norm);
  overflow: hidden;
}
.testimonial:hover {
  box-shadow: var(--shadow);
  border-color: var(--c-primary-badge);
  transform: translateY(-4px);
}
.testimonial video {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: contain;
  display: block;
  background: #000;
  border-bottom: 1px solid var(--c-line);
}
.testimonial .body {
  padding: 20px 24px 24px;
}
.testimonial .meta-row {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 12px;
}
.testimonial .badge {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--c-primary);
  background: rgba(227, 188, 22, 0.12);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.06em;
}
.testimonial .stars {
  display: flex; gap: 2px;
  color: var(--c-gold);
  margin-left: auto;
}
.testimonial .stars svg { width: 14px; height: 14px; fill: currentColor; }
.testimonial blockquote {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-2);
  margin-bottom: 16px;
  min-height: 80px;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.testimonial cite {
  display: flex; gap: 12px;
  align-items: center;
  font-style: normal;
  padding-top: 16px;
  border-top: 1px solid var(--c-line);
}
.testimonial cite .avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  font-family: 'Inter', sans-serif;
}
.testimonial cite .info { font-size: 13px; line-height: 1.3; }
.testimonial cite .info strong { display: block; font-weight: 700; color: var(--c-text); }
.testimonial cite .info span { color: var(--c-muted); font-size: 11px; }

/* ============================================================
   Partner Logos
   ============================================================ */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.partner {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: all var(--t-norm);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 88px;
  gap: 4px;
}
.partner:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-sm);
}
.partner .mark {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 16px;
  color: var(--c-text);
  letter-spacing: -0.01em;
  line-height: 1;
}
.partner .meta {
  font-size: 11px;
  color: var(--c-muted);
  font-weight: 500;
}
.partner .meta strong {
  color: var(--c-primary);
  font-weight: 700;
}

/* ============================================================
   Story Cards
   ============================================================ */
.story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.story-card {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t-norm);
  cursor: pointer;
}
.story-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--c-primary-badge);
}
.story-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  aspect-ratio: 2/1;
  background: var(--c-bg-soft-2);
}
.story-hero-cell { position: relative; overflow: hidden; }
.story-hero-cell img { width: 100%; height: 100%; object-fit: cover; }
.story-hero-cell::after {
  content: attr(data-label);
  position: absolute;
  top: 8px; left: 8px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-text);
  font-family: 'Inter', sans-serif;
  display: none;
}
.story-hero-cell + .story-hero-cell::after {
  background: var(--c-primary);
  color: #fff;
  display: none;
}
.story-body {
  padding: 20px;
}
.story-body .meta {
  font-size: 12px;
  font-weight: 600;
  color: var(--c-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  font-family: 'Inter', sans-serif;
}
.story-body h3 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.3;
  margin-bottom: 8px;
}
.story-body p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.6;
  margin-bottom: 12px;
}
.story-grade {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}
.story-grade.excellent { background: rgba(227, 188, 22, 0.18); color: #e3bc16; }
.story-grade.good { background: rgba(16, 185, 129, 0.15); color: #10B981; }
.story-grade.pass { background: rgba(255, 255, 255, 0.05); color: var(--c-muted); }
.story-grade::before {
  content: '★';
  font-size: 12px;
}
.story-review {
  padding: 10px 12px;
  background: var(--c-bg-soft);
  border-left: 2px solid var(--c-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 12px;
  color: var(--c-text-2);
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 12px;
}
.story-review strong {
  font-style: normal;
  color: var(--c-primary);
  font-weight: 700;
}
.story-artifacts {
  display: flex; flex-wrap: wrap; gap: 4px;
  margin-bottom: 12px;
}
.story-artifacts span {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  padding: 2px 8px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  color: var(--c-muted);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.story-body .profile {
  display: flex; align-items: center; gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--c-line);
}
.story-body .avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
  font-family: 'Inter', sans-serif;
}
.story-body .info { font-size: 13px; line-height: 1.3; }
.story-body .info strong { display: block; font-weight: 700; color: var(--c-text); }
.story-body .info span { color: var(--c-muted); font-size: 11px; }
.story-report {
  display: inline-block;
  margin-top: 12px;
  padding: 6px 12px;
  background: var(--c-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: all 0.2s;
}
.story-report:hover {
  background: #e3bc16;
  transform: translateY(-1px);
}

/* ============================================================
   Timeline · 历届精彩回顾
   ============================================================ */
.timeline {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
  margin-top: 32px;
}
.timeline-item {
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
  position: relative;
  transition: all var(--t-norm);
  cursor: pointer;
  background-color: var(--c-bg);
}
.timeline-item:hover {
  border-color: var(--c-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.timeline-item.now {
  background: var(--c-primary);
  border-color: var(--c-primary);
  box-shadow: var(--shadow-accent);
}
.timeline-item.now::before {
  content: 'NOW';
  position: absolute;
  top: -8px; right: -8px;
  background: var(--c-accent);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.1em;
  font-family: 'Inter', sans-serif;
  animation: tl-pulse 2s infinite;
}
@keyframes tl-pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.1); } }
.timeline-item .year {
  font-size: 11px;
  font-weight: 600;
  color: var(--c-primary);
  letter-spacing: 0.1em;
  font-family: 'Inter', sans-serif;
  text-transform: uppercase;
}
.timeline-item.now .year { color: var(--c-bg); opacity: 0.85; }
.timeline-item .num {
  font-family: 'Inter', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--c-text);
  margin: 6px 0;
  line-height: 1;
}
.timeline-item.now .num { color: var(--c-bg); }
.timeline-item .theme {
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.4;
  min-height: 36px;
}
.timeline-item.now .theme { color: var(--c-bg); opacity: 0.9; }
.timeline-item .exam {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  color: var(--c-primary);
  margin-top: 6px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.timeline-item.now .exam { color: var(--c-bg); opacity: 0.75; }
.timeline-item.now .exam { color: var(--c-bg); opacity: 0.75; }
.timeline-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--c-bg-soft);
  overflow: hidden;
  margin-bottom: 12px;
  border-radius: var(--radius-sm);
  position: relative;
}
.timeline-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.timeline-item:hover .timeline-thumb img { transform: scale(1.06); }
.timeline-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.85));
  display: flex;
  align-items: flex-end;
  padding: 8px 10px;
  font-size: 10px;
  color: #fff;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
}
.timeline-item.now .timeline-thumb-overlay { background: linear-gradient(180deg, transparent 30%, rgba(17,17,17,0.85)); }
.timeline-link {
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: var(--radius-sm);
}
.timeline-link:hover ~ .timeline-thumb img,
.timeline-item:hover .timeline-thumb img { transform: scale(1.06); }
.timeline-pending {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.72);
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  pointer-events: none;
  z-index: 2;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* 往期全记录 marquee */
.record-marquee {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 24px 0;
  scrollbar-width: thin;
}
.record-marquee::-webkit-scrollbar { height: 6px; }
.record-marquee::-webkit-scrollbar-thumb { background: var(--c-primary); border-radius: 4px; }
.record-card {
  flex: 0 0 280px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--t-norm);
  cursor: pointer;
}
.record-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.record-card .img {
  aspect-ratio: 4/5;
  background: var(--c-bg-soft);
  overflow: hidden;
  position: relative;
}
.record-card .img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.record-card:hover .img img { transform: scale(1.05); }
.record-card .body {
  padding: 16px;
}
.record-card .badge {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.record-card h4 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.3;
  margin-bottom: 6px;
}
.record-card .meta {
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.5;
}

/* ============================================================
   3 Day Schedule
   ============================================================ */
.day-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.day-col {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--t-norm);
}
.day-col:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow);
}
.day-head {
  background: var(--c-bg-soft);
  padding: 20px 24px;
  border-bottom: 1px solid var(--c-line);
  position: relative;
}
.day-head .day {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-primary);
  text-transform: uppercase;
}
.day-head .date {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--c-text);
  margin: 4px 0 0;
  line-height: 1.1;
}
.day-head .week {
  font-size: 12px;
  color: var(--c-muted);
  margin-top: 4px;
}
.day-body {
  padding: 16px 24px 24px;
}
.day-row {
  padding: 12px 0;
  border-bottom: 1px dashed var(--c-line);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.day-row:last-child { border-bottom: 0; }
.day-row .time {
  flex-shrink: 0;
  width: 80px;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-primary);
  padding-top: 2px;
  line-height: 1.4;
}
.day-row .content h4 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
  line-height: 1.3;
}
.day-row .content p {
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.5;
}
.day-meal {
  background: var(--c-bg-soft-2);
  padding: 10px 24px;
  text-align: center;
  font-size: 12px;
  color: var(--c-text-2);
  font-weight: 600;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}


.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.why-card {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--t-norm);
}
.why-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow);
}
.why-card .icon {
  width: 48px; height: 48px;
  background: var(--c-primary-soft);
  color: var(--c-primary);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}
.why-card .icon svg { width: 24px; height: 24px; }
.why-card h4 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 8px;
  line-height: 1.3;
}
.why-card p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.6;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
  transition: all var(--t-fast);
}
.faq-item:hover { border-color: var(--c-line-2); }
.faq-item.open {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-sm);
}
.faq-q {
  width: 100%;
  padding: 16px 20px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px;
  font-weight: 600;
  font-size: 15px;
  text-align: left;
  cursor: pointer;
  color: var(--c-text);
  font-family: inherit;
  position: relative;
}
.faq-q::after {
  content: '';
  position: absolute;
  right: 20px;
  top: 18px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  z-index: 0;
}
.faq-item.open .faq-q::after {
  background: var(--c-primary);
}
.faq-q::before {
  content: '+';
  position: absolute;
  right: 20px;
  top: 18px;
  width: 28px;
  height: 28px;
  display: block;
  text-align: center;
  font-family: 'Inter', sans-serif;
  font-size: 26px;
  font-weight: 300;
  line-height: 26px;
  color: var(--c-primary);
  z-index: 1;
  transform-origin: center center;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              color 0.3s ease;
}
.faq-item.open .faq-q::before {
  content: '+';
  color: var(--c-bg);
  transform: rotate(45deg);
}
.faq-a-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.45s cubic-bezier(0.4, 0, 0.2, 1),
              margin-top 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-item.open .faq-a-wrap {
  grid-template-rows: 1fr;
  margin-top: 12px;
}
.faq-a {
  overflow: hidden;
  min-height: 0;
  padding: 0 20px;
  color: var(--c-text-2);
  font-size: 14px;
  line-height: 1.7;
  opacity: 0;
  transition: opacity 0.3s ease, padding 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-item.open .faq-a {
  padding: 0 20px 16px;
  opacity: 1;
  transition: opacity 0.3s ease 0.1s, padding 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-q {
  transition: background var(--t-fast);
}
.faq-item.open .faq-q::after {
  transform: rotate(45deg);
}
.faq-q::after {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.2s ease, color 0.2s ease;
}

/* ============================================================
   CTA Section
   ============================================================ */
.cta-big {
  background: linear-gradient(135deg, #e3bc16 0%, #b89a11 100%);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-big::before {
  content: '';
  position: absolute;
  top: -50%; left: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(227, 188, 22, 0.12), transparent 60%);
  pointer-events: none;
}
.cta-big .eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 12px;
  position: relative;
}
.cta-big h2 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  position: relative;
}
.cta-big p {
  font-size: 17px;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
  position: relative;
}
.cta-big .actions {
  display: flex; gap: 12px; justify-content: center;
  flex-wrap: wrap;
  position: relative;
}
.cta-big .btn-light {
  background: #fff;
  color: var(--c-primary-deep);
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  display: inline-flex; align-items: center; gap: 8px;
  border: 0;
  cursor: pointer;
  transition: all var(--t-fast);
  text-decoration: none;
  font-family: inherit;
}
.cta-big .btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }
.cta-big .btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 15px;
  display: inline-flex; align-items: center; gap: 8px;
  cursor: pointer;
  transition: all var(--t-fast);
  text-decoration: none;
  font-family: inherit;
}
.cta-big .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--c-bg-soft-2);
  border-top: 1px solid var(--c-line);
  padding: 48px 0 24px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--c-line);
}
.footer-brand .brand {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 12px;
}
.footer-brand .brand-mark {
  width: 36px; height: 36px;
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
}
.footer-brand p {
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.6;
  max-width: 320px;
  margin-bottom: 16px;
}
.footer-col h6 {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text);
  margin-bottom: 16px;
}
.footer-col li { margin-bottom: 10px; }
.footer-col li a {
  color: var(--c-muted);
  font-size: 14px;
  transition: color var(--t-fast);
}
.footer-col li a:hover { color: var(--c-primary); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--c-muted);
}
.footer-bottom a { color: var(--c-muted); transition: color var(--t-fast); }
.footer-bottom a:hover { color: var(--c-primary); }
.footer-bottom .links { display: flex; gap: 24px; }

/* ============================================================
   Floating contact
   ============================================================ */
.float-contact {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.float-contact button {
  width: 56px; height: 56px;
  background: var(--c-primary);
  color: #fff;
  border: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--t-fast);
  font-family: 'Inter', sans-serif;
}
.float-contact button.alt {
  background: #fff;
  color: var(--c-primary);
  border: 1px solid var(--c-primary);
}
.float-contact button:hover { transform: translateY(-2px); }

/* ============================================================
   Modal
   ============================================================ */
.modal {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
}
.modal.open { display: flex; }
.modal-box {
  background: var(--c-bg);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 32px;
  position: relative;
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow-y: auto;
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 32px; height: 32px;
  border: 0;
  background: var(--c-bg-soft);
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 300;
  cursor: pointer;
  border-radius: 50%;
  color: var(--c-text);
  transition: all var(--t-fast);
}
.modal-close:hover { background: var(--c-primary); color: #fff; }
.modal h3 {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.2;
  color: var(--c-text);
}
.modal h3 em {
  font-style: normal;
  color: var(--c-primary);
}
.modal .modal-sub {
  color: var(--c-muted);
  font-size: 14px;
  margin-bottom: 24px;
  line-height: 1.5;
}
.modal .contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.modal .contact-card {
  border: 1px solid var(--c-line);
  padding: 16px;
  border-radius: var(--radius);
  background: var(--c-bg-soft);
}
.modal .contact-card .ct-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  margin-bottom: 6px;
  font-family: 'Inter', sans-serif;
}
.modal .contact-card .ct-value {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-primary);
  word-break: break-all;
}
.modal .qr {
  width: 140px; height: 140px;
  background: var(--c-bg-soft);
  margin: 12px auto 0;
  display: grid;
  place-items: center;
  color: var(--c-muted);
  font-size: 12px;
  border: 1px dashed var(--c-line-2);
  border-radius: var(--radius);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1180px) {
  .course-grid { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr 1fr; }
  .story-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .footer-col:last-child { grid-column: 1 / -1; padding-top: 16px; border-top: 1px solid var(--c-line); }
}
@media (max-width: 960px) {
  .container { padding: 0 20px; }
  .section { padding: 48px 0; }
  .cert-banner { grid-template-columns: 1fr; padding: 32px; }
  .nav-links { display: none; }
  .filter-bar { top: 60px; }
}
@media (max-width: 768px) {
  .course-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .story-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-actions .btn-ghost { display: none; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .section { padding: 40px 0; }
  .course-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-col:last-child { border-top: 1px solid var(--c-line); padding-top: 16px; }
  .cta-big { padding: 40px 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-bottom .links { flex-wrap: wrap; gap: 16px; }
  .float-contact { right: 16px; bottom: 16px; }
  .float-contact button { width: 48px; height: 48px; font-size: 10px; }
}