/* ===========================================================
 * 实操派 PLC 培训 招生落地页
 * 主题：深色背景 + 品牌色 #0AA770 + 工业感
 * =========================================================== */

:root {
  --brand:       #0AA770;
  --brand-dark:  #089060;
  --brand-soft:  #0AA77033;
  --brand-bg:    #0AA77014;
  --bg:          #0D0F0E;
  --bg-2:        #15181A;
  --card:        #15181A;
  --card-hover:  #1A1E20;
  --border:      #232729;
  --text:        #FFFFFF;
  --text-2:      #D6DAD8;     /* 主副标题用，比原来 #C9CDC9 略亮 */
  --text-3:      #B1B6B3;     /* 次级副文案用，原 #9CA3A0 太暗，提亮约 10% */
  --text-mute:   #828987;     /* 弱化提示用，原 #6B7270 太暗 */
  --green-soft:  #B8F5D9;
  --shadow:      0 8px 32px rgba(0,0,0,.4);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
               "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ============ 容器 ============ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; position: relative; }
.section-tag {
  display: inline-block; padding: 6px 14px;
  font-size: 13px; letter-spacing: 1px;
  background: var(--brand-bg);
  color: var(--brand);
  border: 1px solid var(--brand-soft);
  border-radius: 100px;
  margin-bottom: 24px;
}
.section-title {
  font-size: 40px; font-weight: 700; line-height: 1.3;
  margin-bottom: 16px;
}
.section-sub {
  font-size: 17px; color: var(--text-3); max-width: 720px;
}
.section-center { text-align: center; }
.section-center .section-sub { margin-left: auto; margin-right: auto; }

.brand { color: var(--brand); }
.text-mute { color: var(--text-3); }
.highlight {
  color: var(--green-soft);
  font-weight: 600;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 100px;
  font-size: 16px; font-weight: 600;
  transition: all .2s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 16px var(--brand-soft);
  position: relative;
  overflow: hidden;
}
.btn-primary:hover { background: var(--brand-dark); transform: translateY(-1px); }
.btn-primary::after {
  content: '';
  position: absolute; top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.14), transparent);
  transition: left .45s ease;
  pointer-events: none;
}
.btn-primary:hover::after { left: 140%; }
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--brand); color: var(--brand); }
.btn-arrow::after { content: '→'; }

/* ============ 导航 ============ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(13,15,14,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
/* 各锚点留出导航高度，避免跳转后被遮 */
section[id] { scroll-margin-top: 72px; }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-size: 18px; font-weight: 800; letter-spacing: 1px;
  display: flex; align-items: center; gap: 10px;
}
.nav-logo .logo-mark {
  width: 32px; height: 32px;
  background-image: url('/images/logo-mark.svg');
  background-size: contain;
  background-repeat: no-repeat;
  flex-shrink: 0;
}
.nav-menu { display: flex; gap: 24px; }
.nav-menu a {
  color: var(--text-3); font-size: 14px;
  transition: color .15s;
  position: relative;
}
.nav-menu a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform .2s ease;
}
.nav-menu a:hover { color: var(--text); }
.nav-menu a.nav-active { color: var(--text); }
.nav-menu a.nav-active::after { transform: scaleX(1); }
.nav-cta { padding: 8px 18px; font-size: 14px; }
.nav-hamburger {
  display: none;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  color: var(--text); font-size: 14px; font-weight: 600;
  cursor: pointer; padding: 7px 13px;
  line-height: 1; margin-left: 8px;
  letter-spacing: 0.3px;
  transition: background .15s;
}
.nav-hamburger:active { background: rgba(255,255,255,.16); }

/* ============ Hero ============ */
.hero {
  padding: 140px 0 100px;
  position: relative;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 30% 0%, rgba(10,167,112,.10), transparent 50%),
    radial-gradient(ellipse at 70% 100%, rgba(10,167,112,.06), transparent 50%);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
  z-index: 0;
}
/* 顶部绿色光晕球 */
.hero::after {
  content: '';
  position: absolute;
  top: -140px; left: 50%; transform: translateX(-50%);
  width: 700px; height: 520px;
  background: radial-gradient(ellipse, rgba(10,167,112,.15) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}
.hero-tag { position: relative; z-index: 2; }

/* 搏动绿点 */
.hero-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--brand);
  margin-right: 8px;
  vertical-align: middle;
  position: relative; top: -1px;
  animation: heroDotPulse 2.4s ease-in-out infinite;
}
@keyframes heroDotPulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(10,167,112,.6); }
  50%      { box-shadow: 0 0 0 5px rgba(10,167,112,.0); }
}

.hero-title {
  font-size: 54px; font-weight: 800; line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 28px 0 36px; position: relative; z-index: 2;
}
.hero-title .brand { color: var(--green-soft); }

/* 标题前置灰色小字 */
.hero-title-neg {
  display: block;
  font-size: 20px;
  font-weight: 500;
  color: var(--text-mute);
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 18px; color: var(--text-2);
  max-width: 640px; margin: 0 auto 44px;
  line-height: 1.85;
  position: relative; z-index: 2;
}
.hero-cta {
  display: flex; gap: 12px; justify-content: center;
  flex-wrap: wrap; position: relative; z-index: 2;
}
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px; max-width: 800px; margin: 96px auto 0;
  background: transparent;
  border: none; overflow: visible;
  position: relative; z-index: 2;
}
.hero-stat {
  background: rgba(21,24,26,.9);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 20px;
  text-align: center;
  transition: border-color .2s, transform .2s;
}
.hero-stat:hover {
  border-color: var(--brand-soft);
  transform: translateY(-2px);
}
.hero-stat .num {
  font-size: 32px; font-weight: 800;
  background: linear-gradient(135deg, var(--brand) 30%, var(--green-soft));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .label {
  font-size: 13px; color: var(--text-3); margin-top: 6px;
}

/* ============ 通用卡片 ============ */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all .2s;
}
.card:hover {
  border-color: var(--brand-soft);
  background: var(--card-hover);
  transform: translateY(-2px);
}
.card-num {
  font-size: 40px; font-weight: 800;
  color: var(--text-mute);
  margin-bottom: 12px;
  display: flex; justify-content: space-between; align-items: center;
}
.card-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--brand-bg);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand); font-size: 20px;
}
.card h3 { font-size: 22px; margin-bottom: 12px; }
.card-text { color: var(--text-3); font-size: 15px; line-height: 1.7; }
.card h3.brand { color: var(--brand); }

/* ============ Hero 学员动态走马灯 ============ */
.hero-proof-row {
  overflow: hidden;
  position: relative; z-index: 2;
  margin: 28px 0 0;
  /* 两端渐隐 */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 8%, #000 92%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, #000 8%, #000 92%, transparent 100%);
}
.hero-proof-track {
  display: flex; gap: 10px;
  width: max-content;
  animation: proofMarquee 28s linear infinite;
}
.hero-proof-row:hover .hero-proof-track { animation-play-state: paused; }
@keyframes proofMarquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.hero-proof-pill {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 18px;
  background: rgba(21,24,26,.85);
  border: 1px solid var(--border);
  border-radius: 100px;
  backdrop-filter: blur(8px);
  font-size: 13px; color: var(--text-2);
  cursor: pointer;
  transition: border-color .2s, transform .15s;
  white-space: nowrap;
  user-select: none;
}
.hero-proof-pill:hover { border-color: var(--brand-soft); }
/* 点击弹跳动画（JS 触发 .pill-click 类）*/
.hero-proof-pill.pill-click {
  animation: pillBounce .35s ease;
}
@keyframes pillBounce {
  0%   { transform: scale(1); }
  30%  { transform: scale(.9); }
  65%  { transform: scale(1.08); }
  100% { transform: scale(1); }
}
.proof-green-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand); flex-shrink: 0;
  animation: heroDotPulse 2.4s ease-in-out infinite;
}
.proof-time {
  font-size: 11px; color: var(--text-mute);
  border-left: 1px solid var(--border);
  padding-left: 8px; margin-left: 4px;
}

/* ============ VS 对比表 ============ */
.vs-table {
  margin-top: 56px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.vs-header-row {
  display: grid; grid-template-columns: 160px 1fr 1.5fr 1fr;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.vs-col-head {
  padding: 20px 20px;
  font-weight: 700; font-size: 15px;
  text-align: center;
  border-left: 1px solid var(--border);
  color: var(--text-3);
}
.vs-col-head:first-child { border-left: none; }
.vs-col-head.featured {
  background: var(--brand-bg);
  border-color: var(--brand-soft);
  color: var(--brand);
  font-size: 0; /* hide duplicate text, use badge */
}
.vs-badge {
  font-size: 16px; font-weight: 800;
  color: var(--brand);
  background: var(--brand-bg);
}
.vs-row {
  display: grid; grid-template-columns: 160px 1fr 1.5fr 1fr;
  border-top: 1px solid var(--border);
}
.vs-row:hover { background: rgba(255,255,255,.015); }
.vs-label {
  padding: 16px 20px;
  font-size: 14px; font-weight: 600;
  color: var(--text-2);
  display: flex; align-items: center;
  border-right: 1px solid var(--border);
}
.vs-cell {
  padding: 16px 20px;
  font-size: 14px; color: var(--text-3);
  text-align: center;
  display: flex; align-items: center; justify-content: center;
  border-left: 1px solid var(--border);
  line-height: 1.5;
}
.vs-cell.featured {
  background: var(--brand-bg);
  border-color: var(--brand-soft);
  color: var(--text);
  font-weight: 600;
}
.vs-cell.featured.ok { color: var(--brand); }
.vs-cell.dim { color: var(--text-mute); }

/* ============ 入学报名流程 ============ */
.enroll-flow {
  display: flex; align-items: stretch; gap: 0;
  margin-top: 56px; flex-wrap: wrap; justify-content: center;
}
.enroll-step {
  flex: 1; min-width: 180px; max-width: 220px;
  text-align: center;
  padding: 32px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: border-color .2s, transform .2s;
}
.enroll-step:hover { border-color: var(--brand-soft); transform: translateY(-2px); }
.enroll-num {
  font-size: 11px; font-weight: 700;
  color: var(--brand); letter-spacing: 2px;
  margin-bottom: 12px;
}
.enroll-icon { font-size: 32px; margin-bottom: 12px; }
.enroll-title { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.enroll-step p { font-size: 13px; color: var(--text-3); line-height: 1.65; margin-bottom: 16px; }
.enroll-time {
  display: inline-block;
  font-size: 12px; font-weight: 600; color: var(--brand);
  background: var(--brand-bg);
  border: 1px solid var(--brand-soft);
  border-radius: 100px; padding: 3px 12px;
}
.enroll-arrow {
  color: var(--text-mute); font-size: 20px;
  padding: 0 10px; flex-shrink: 0;
  display: flex; align-items: center;
}
@media (max-width: 900px) {
  .enroll-arrow { display: none; }
  .enroll-flow { gap: 12px; }
  .enroll-step { min-width: 160px; }
}

/* ============ 认知冲突 - 对比卡片 ============ */
.contrast-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-top: 56px;
}

/* ============ 适合人群 ============ */
.fit-layout {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px;
  align-items: start;
}
.fit-headline { font-size: 36px; font-weight: 700; margin-bottom: 24px; line-height: 1.3; }
.fit-headline .highlight { color: var(--green-soft); }
.fit-intro { color: var(--text-3); margin-bottom: 28px; }
.fit-nochip {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px; padding: 24px;
}
.fit-nochip .label { font-size: 14px; color: var(--text-3); margin-bottom: 12px; }
.fit-nochip .chips { display: flex; flex-wrap: wrap; gap: 8px; }
.fit-nochip .chip {
  padding: 6px 14px; border-radius: 100px;
  background: var(--bg); color: var(--text-mute);
  font-size: 14px; border: 1px solid var(--border);
}
.fit-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}
.fit-card { padding: 24px; }
.fit-card .card-icon { margin-bottom: 16px; }
.fit-card h4 { font-size: 17px; margin-bottom: 8px; }
.fit-card p { color: var(--text-3); font-size: 14px; }
.fit-redline {
  margin-top: 32px;
  background: rgba(239, 68, 68, .06);
  border: 1px solid rgba(239, 68, 68, .25);
  border-radius: 16px; padding: 20px 24px;
}
.fit-redline .title { color: #FCA5A5; font-weight: 600; margin-bottom: 8px; }
.fit-redline ul { padding-left: 18px; color: var(--text-3); font-size: 14px; }
.fit-redline li { margin: 4px 0; }

/* ============ 教学方法论 - 四阶段 ============ */
.stages {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-top: 56px;
}
.stage {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.stage::before {
  content: ''; position: absolute; left: 0; top: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--brand), transparent);
}
.stage-num {
  font-family: 'SF Mono', monospace;
  color: var(--brand);
  font-size: 13px; letter-spacing: 1px;
  margin-bottom: 16px;
}
.stage-title { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.stage-sub { color: var(--text-3); font-size: 13px; margin-bottom: 16px; }
.stage-pass {
  border-top: 1px dashed var(--border);
  padding-top: 14px; font-size: 13px; color: var(--green-soft);
  display: flex; gap: 8px; align-items: flex-start;
}

/* ============ 课程 ============ */
.course-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  max-width: 900px; margin: 56px auto 0;
}
.course-head {
  display: grid; grid-template-columns: 1.5fr 1fr;
  gap: 24px; padding-bottom: 32px;
  border-bottom: 1px solid var(--border); margin-bottom: 32px;
}
.course-name { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.course-subtitle { color: var(--text-3); }
.course-price {
  text-align: right;
}
.course-price .price-label { color: var(--text-3); font-size: 14px; margin-bottom: 4px; }
.course-price .price-num { font-size: 24px; color: var(--brand); font-weight: 700; }
.course-meta {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-bottom: 32px;
}
.course-meta-item {
  background: var(--bg-2); padding: 20px;
  border-radius: 12px; border: 1px solid var(--border);
}
.course-meta-item .k { color: var(--text-3); font-size: 13px; margin-bottom: 4px; }
.course-meta-item .v { font-size: 18px; font-weight: 600; }
.course-blocks {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.course-block h4 {
  font-size: 15px; color: var(--brand);
  margin-bottom: 16px; letter-spacing: 1px;
}
.course-block ul { list-style: none; }
.course-block li {
  padding: 8px 0; padding-left: 24px;
  position: relative; color: var(--text-2); font-size: 15px;
}
.course-block li::before {
  content: '✓'; color: var(--brand);
  position: absolute; left: 0; top: 8px;
  font-weight: 700;
}

/* ============ 机构 / 设备 ============ */
.gallery {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-top: 48px;
}
.gallery-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  position: relative;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; }
.gallery-item .gallery-empty {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-mute); font-size: 14px;
}
.gallery-item .caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 12px 16px; font-size: 14px;
  background: linear-gradient(transparent, rgba(0,0,0,.7));
}

/* 学员转行案例视频板块：手机竖屏视频 → 用竖图比例 + 黄色标题条（模拟视频开头字幕） */
#storiesGallery .gallery-item {
  aspect-ratio: 3 / 4;
  cursor: pointer;
}
#storiesGallery .gallery-item img {
  object-position: center 20%;   /* 露出主体人物上半身，避开 T 恤胸口 */
}
#storiesGallery .gallery-item .caption {
  /* 黄色字幕条覆盖在封面下方约 1/3 处，模拟视频开头字幕位置 */
  top: 62%;
  bottom: auto;
  left: 14px;
  right: 14px;
  transform: none;
  padding: 10px 14px;
  background: #FFD83A;
  color: #111;
  font-weight: 800;
  font-size: 15px;
  line-height: 1.4;
  text-align: center;
  border-radius: 6px;
  text-shadow: none;
  box-shadow: 0 6px 16px rgba(0,0,0,.45);
  letter-spacing: 0.3px;
}
@media (max-width: 768px) {
  #storiesGallery .gallery-item .caption { font-size: 13px; padding: 8px 10px; }
}

/* 朋友圈板块：手机竖屏截图 → 缩略图只露"头部正文 + 图片顶部一点"，对应详情页红框区域 */
#dailyGallery .gallery-item {
  aspect-ratio: 5 / 6;
  cursor: zoom-in;
}
#dailyGallery .gallery-item img {
  object-position: center top;
  background: #f5f5f5;
}
#dailyGallery .gallery-item .caption {
  display: none;
}
#dailyGallery .gallery-item::after {
  content: '🔍';
  position: absolute;
  top: 10px; right: 10px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(0,0,0,.6);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  opacity: 0; transition: opacity .2s;
  pointer-events: none;
}
#dailyGallery .gallery-item:hover::after { opacity: 1; }

/* 视频卡片 - 播放按钮覆盖层 */
.gallery-video { cursor: pointer; }
.gallery-video .play-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.15);
  transition: background .2s;
}
.gallery-video:hover .play-overlay { background: rgba(0,0,0,.4); }
.gallery-video .play-btn {
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(10,167,112,.95);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 22px; padding-left: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
  transition: transform .2s;
}
.gallery-video:hover .play-btn { transform: scale(1.1); }

/* ============ 学员简历卡 V2（图片为主体 + 模糊缩略图 + 关键数据清晰） ============ */
.student-card-v2 {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  cursor: pointer;
  transition: all .2s;
  display: flex; flex-direction: column;
}
.student-card-v2:hover {
  border-color: var(--brand);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(10,167,112,.15);
}
.student-card-v2 .sc-head { margin-bottom: 12px; }
.student-card-v2 .name {
  font-size: 17px; font-weight: 700; margin-bottom: 6px;
}
.student-card-v2 .meta {
  color: var(--text-3); font-size: 13px;
}

/* 模糊简历图缩略 */
.sc-resume {
  position: relative;
  margin: 12px 0;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 1.4 / 1;
  background: var(--bg-2);
}
.sc-resume img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: blur(.5px) brightness(1);
  transform: scale(1.005); /* 防止 blur 边缘漏出 */
  transition: filter .25s;
}
.student-card-v2:hover .sc-resume img {
  filter: blur(0) brightness(.9);
}
.sc-resume-mask {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(180deg, transparent 30%, rgba(13,15,14,.6) 100%);
}
.sc-resume-btn {
  background: var(--brand);
  color: #fff;
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 12px; font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 6px 20px rgba(10,167,112,.4);
}

/* arrow row 优化 */
.student-card-v2 .arrow-row {
  margin: 8px 0 10px;
}
.student-card-v2 .arrow-row .before .val {
  color: var(--text-mute);
  text-decoration: line-through;
  font-size: 16px;
}
.student-card-v2 .arrow-row .after .val {
  color: var(--brand);
  font-size: 18px;
  font-weight: 800;
}
.student-card-v2 .sc-foot {
  font-size: 12px;
  color: var(--text-mute);
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

/* ============ 模糊点击（学费 / 学员简历） ============ */
.blur-text {
  filter: blur(6px);
  transition: filter .2s;
  -webkit-user-select: none;
  user-select: none;
}
.blur-clickable {
  cursor: pointer;
  position: relative;
  transition: all .2s;
}
.blur-clickable:hover {
  border-color: var(--brand) !important;
  background: var(--card-hover) !important;
}
.blur-clickable .reveal-hint {
  position: absolute;
  bottom: 12px; left: 50%;
  transform: translateX(-50%);
  background: var(--brand);
  color: #fff;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transition: opacity .2s;
  pointer-events: none;
}
.blur-clickable:hover .reveal-hint { opacity: 1; }

/* 课程卡里的"学费"特殊处理 */
.course-price.blur-clickable {
  padding: 12px; border-radius: 10px;
  background: var(--bg-2);
}
.course-price .reveal-hint {
  position: static; transform: none;
  display: inline-block;
  margin-top: 8px;
}
.course-price.blur-clickable:hover .reveal-hint { opacity: 1; }

/* ============ ② B 成人晋升路线 / 薪资金字塔 ============ */
.ladder {
  max-width: 900px;
  margin: 56px auto 0;
  display: flex; flex-direction: column;
  gap: 10px;
}
.ladder-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding: 22px 28px;
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 12px;
  background: var(--card);
  text-align: left;
  transition: all .2s;
}
.ladder-row.dim {
  border-left-color: #3a4040;
  opacity: .65;
}
.ladder-row.dim:hover { opacity: 1; }
.ladder-row.hot {
  border-left-color: var(--brand);
}
.ladder-row.featured {
  background: linear-gradient(90deg, rgba(10,167,112,.16), var(--card) 60%);
  border-color: var(--brand);
  box-shadow: 0 8px 24px rgba(10,167,112,.15);
}
.ladder-role {
  font-size: 19px; font-weight: 700;
  margin-bottom: 4px;
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap;
}
.ladder-row.hot .ladder-role { color: var(--brand); }
.ladder-row.featured .ladder-role { color: var(--green-soft); }
.ladder-desc { color: var(--text-3); font-size: 13px; }
.ladder-row.dim .ladder-desc { color: var(--text-mute); }
.ladder-salary {
  font-size: 18px; font-weight: 700;
  white-space: nowrap;
  color: var(--brand);
}
.ladder-salary.dim-salary { color: var(--text-mute); }
.here-badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--brand);
  color: #fff;
  font-size: 12px; font-weight: 700;
  border-radius: 100px;
  white-space: nowrap;
}

@media (max-width: 720px) {
  .ladder-row { flex-direction: column; align-items: flex-start; gap: 6px; padding: 16px 18px; }
  .ladder-salary { font-size: 16px; }
}

/* ============ ⑨ 找工作 8 步流程 ============ */
.job-flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 56px;
}
.job-step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  position: relative;
  text-align: left;
}
.job-step::before {
  content: ''; position: absolute;
  left: 24px; top: 24px; bottom: 24px;
  width: 2px; background: var(--brand-soft);
}
.job-step .step-num {
  font-family: 'SF Mono', monospace;
  font-size: 13px; letter-spacing: 1px;
  color: var(--brand); font-weight: 700;
  margin-bottom: 12px; padding-left: 20px;
}
.job-step .step-title {
  font-size: 18px; font-weight: 700;
  margin-bottom: 10px; padding-left: 20px;
}
.job-step p {
  color: var(--text-3); font-size: 13px;
  line-height: 1.7; padding-left: 20px;
}

/* 视频全屏 Lightbox */
.video-lightbox {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(0,0,0,.92);
  display: none; align-items: center; justify-content: center;
  padding: 24px;
}
.video-lightbox.open { display: flex; }
.video-lightbox-inner {
  max-width: 900px; width: 100%; position: relative;
}
.image-lightbox-inner {
  max-width: 520px;
}
/* 朋友圈 lightbox 裁切框 - 手机长截图只显示中间聊天主体 */
.image-lightbox-inner .cropped-frame {
  width: 100%;
  aspect-ratio: 3 / 3.4;             /* 红框比例：略偏方，聊天气泡完整显示 */
  background-size: 100% auto;
  background-position: center 38%;   /* 露出"详情标题 + 聊天主体"，去除底部空白 */
  background-repeat: no-repeat;
  background-color: #f5f5f5;
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0,0,0,.4);
}
.video-lightbox-close {
  position: absolute; top: -44px; right: 0;
  background: rgba(255,255,255,.1); color: #fff;
  padding: 8px 16px; border-radius: 100px; font-size: 14px;
  cursor: pointer;
}
.video-lightbox-close:hover { background: rgba(255,255,255,.2); }

/* ============ 老师 (staff) ============ */
.staff-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 48px;
}
.staff-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 28px; text-align: center;
}
.staff-avatar {
  width: 96px; height: 96px; border-radius: 50%;
  background: var(--bg-2); margin: 0 auto 16px;
  overflow: hidden;
  border: 2px solid var(--brand-soft);
}
.staff-avatar img { width: 100%; height: 100%; object-fit: cover; }
.staff-card .name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.staff-card .title { color: var(--brand); font-size: 13px; margin-bottom: 12px; }
.staff-card .intro { color: var(--text-3); font-size: 14px; }

/* ============ 学员简历 ============ */
.student-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 48px;
}
.student-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 28px;
}
.student-card .name {
  font-size: 18px; font-weight: 700; margin-bottom: 12px;
}
.student-card .arrow-row {
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: 12px; margin: 16px 0;
}
.student-card .before, .student-card .after {
  background: var(--bg-2); padding: 12px; border-radius: 10px;
}
.student-card .before .lbl, .student-card .after .lbl {
  font-size: 12px; color: var(--text-3); margin-bottom: 4px;
}
.student-card .before .val, .student-card .after .val {
  font-size: 14px; font-weight: 600;
}
.student-card .after .val { color: var(--brand); }
.student-card .arrow { color: var(--brand); font-size: 20px; }
.student-card .meta {
  font-size: 13px; color: var(--text-3); margin-top: 12px;
  padding-top: 12px; border-top: 1px solid var(--border);
}

/* ============ 公司 LOGO 墙 ============ */
.logo-wall {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px;
  margin-top: 32px;
}
.logo-wall-item {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px; aspect-ratio: 5/3;
  display: flex; align-items: center; justify-content: center;
}
.logo-wall-item img { max-width: 70%; max-height: 70%; object-fit: contain; filter: grayscale(.3); }
.logo-wall-item .name { color: var(--text-3); font-size: 13px; text-align: center; }

/* ============ FAQ ============ */
.faq-list { max-width: 900px; margin: 48px auto 0; }
.faq-item {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; margin-bottom: 12px;
  overflow: hidden;
}
.faq-q {
  width: 100%; text-align: left; padding: 20px 24px;
  font-size: 16px; font-weight: 600;
  display: flex; justify-content: space-between; align-items: center;
}
.faq-q .toggle { color: var(--brand); font-size: 20px; transition: transform .2s; }
.faq-item.open .faq-q .toggle { transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .3s ease;
  color: var(--text-3); line-height: 1.7;
}
.faq-item.open .faq-a { max-height: 500px; padding: 0 24px 20px; }

/* ============ 食宿 / 交通 ============ */
.contact-info {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 48px;
}
.contact-info-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 28px;
}
.contact-info-card .ic { color: var(--brand); font-size: 24px; margin-bottom: 12px; }
.contact-info-card h4 { font-size: 17px; margin-bottom: 8px; }
.contact-info-card p { color: var(--text-3); font-size: 14px; line-height: 1.7; }

/* ============ 老师联系（最后 CTA） ============ */
.cta-section {
  background:
    radial-gradient(ellipse at center, rgba(10,167,112,.12), transparent 60%),
    var(--bg);
  text-align: center;
  padding: 96px 0;
}
.cta-card {
  max-width: 720px; margin: 56px auto 0;
  background: var(--card); border: 1px solid var(--brand-soft);
  border-radius: 24px; padding: 48px 40px;
  box-shadow: 0 16px 48px rgba(10,167,112,.12);
}
.cta-teacher-row {
  display: flex; align-items: center; gap: 24px;
  margin-bottom: 32px;
}
.cta-avatar {
  width: 88px; height: 88px; border-radius: 50%;
  background: var(--bg-2);
  border: 2px solid var(--brand);
  overflow: hidden;
}
.cta-avatar img { width: 100%; height: 100%; object-fit: cover; }
.cta-teacher-info { flex: 1; text-align: left; }
.cta-teacher-info .name { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.cta-teacher-info .role { color: var(--brand); font-size: 14px; margin-bottom: 8px; }
.cta-teacher-info .intro { color: var(--text-3); font-size: 14px; }
.cta-qrcode {
  width: 200px; height: 200px; margin: 0 auto 16px;
  background: #fff; border-radius: 12px; padding: 12px;
}
.cta-qrcode img { width: 100%; height: 100%; }
.cta-actions {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  margin-top: 16px;
}
.cta-hint {
  color: var(--text-2); font-size: 14px; margin-top: 18px;
  letter-spacing: 0.3px;
}

/* ============ Footer ============ */
.footer {
  border-top: 1px solid var(--brand-soft);
  padding: 40px 0;
  color: var(--text-2); font-size: 14px;
  background: linear-gradient(to bottom, transparent, rgba(10,167,112,0.04));
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
.footer-inner > div:first-child::before {
  content: '●'; color: var(--brand);
  margin-right: 8px; font-size: 11px;
  vertical-align: middle;
}

/* ============ 浮窗按钮（领取手册） ============ */
.float-cta {
  position: fixed; right: 24px; bottom: 24px;
  background: var(--brand); color: #fff;
  padding: 14px 24px; border-radius: 100px;
  font-size: 14px; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
  box-shadow: 0 8px 24px rgba(10,167,112,.4);
  cursor: pointer; z-index: 50;
  transition: all .2s;
}
.float-cta:hover { background: var(--brand-dark); transform: translateY(-2px); }
.float-cta .ic { font-size: 18px; }

/* ============ Modal ============ */
.modal-mask {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
  z-index: 200; padding: 24px;
}
.modal-mask.open { display: flex; }
.modal-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 20px; padding: 40px;
  max-width: 480px; width: 100%;
  max-height: 90vh; overflow-y: auto;
  text-align: center;
}
.modal-card h3 { font-size: 22px; margin-bottom: 12px; }
.modal-card p { color: var(--text-3); margin-bottom: 20px; font-size: 14px; line-height: 1.7; }
.modal-card .qr {
  width: 220px; height: 220px; margin: 0 auto 16px;
  background: #fff; border-radius: 12px; padding: 12px;
}
.modal-card .qr img { width: 100%; height: 100%; }
.modal-card .close {
  position: relative; margin-top: 16px;
  color: var(--text-3); font-size: 14px;
}
.modal-card .close:hover { color: var(--text); }

/* ============ 地址链接 ============ */
.addr-link {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--brand-soft);
  text-underline-offset: 3px;
  transition: color .2s;
}
.addr-link:hover { color: var(--brand); }
.addr-sub {
  display: block;
  font-size: 13px;
  color: var(--text-3);
  font-weight: 400;
  margin-top: 2px;
  text-decoration: none;
}

/* ============ 教学模式对比 #model ============ */
.model-compare {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 16px;
  margin: 48px auto 0;
  max-width: 860px;
  text-align: left;
}
.model-col {
  border-radius: 16px;
  padding: 32px 28px;
  border: 1px solid var(--border);
}
.dim-col {
  background: rgba(21,24,26,.6);
}
.brand-col {
  background: var(--brand-bg);
  border-color: var(--brand-soft);
}
.model-col-head {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.brand-col .model-col-head { color: var(--text); border-color: var(--brand-soft); }
.model-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 13px;
}
.dim-col .model-list li {
  color: var(--text-mute);
  font-size: 14px;
  padding-left: 20px;
  position: relative;
}
.dim-col .model-list li::before {
  content: '✗';
  position: absolute; left: 0;
  color: #7a4040;
  font-size: 13px;
}
.brand-col .model-list li {
  color: var(--text-2);
  font-size: 14px;
  padding-left: 20px;
  position: relative;
}
.brand-col .model-list li::before {
  content: '✓';
  position: absolute; left: 0;
  color: var(--brand);
  font-weight: 700;
}

/* 数字条 */
.model-stats {
  display: flex;
  justify-content: center;
  gap: 0;
  margin: 48px auto 0;
  max-width: 720px;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.model-stat {
  flex: 1;
  padding: 28px 16px;
  text-align: center;
  border-right: 1px solid var(--border);
  background: var(--card);
}
.model-stat:last-child { border-right: none; }
.model-num {
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--brand) 30%, var(--green-soft));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 6px;
}
.model-unit {
  font-size: 15px;
  font-weight: 600;
}
.model-label {
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 0.5px;
  margin-top: 6px;
}
.model-conclusion {
  margin-top: 36px;
  font-size: 17px;
  color: var(--text-3);
  line-height: 1.8;
}

/* ============ 响应式 ============ */
@media (max-width: 1100px) {
  .job-flow-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 980px) {
  .section { padding: 64px 0; }
  .section-title { font-size: 30px; }
  .hero-title { font-size: 36px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .contrast-grid { grid-template-columns: repeat(2, 1fr); }
  .fit-layout { grid-template-columns: 1fr; gap: 24px; }
  .fit-grid { grid-template-columns: 1fr; }
  .stages { grid-template-columns: repeat(2, 1fr); }
  .course-head { grid-template-columns: 1fr; }
  .course-price { text-align: left; }
  .course-meta { grid-template-columns: 1fr; }
  .course-blocks { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .staff-grid { grid-template-columns: 1fr; }
  .student-grid { grid-template-columns: 1fr; }
  .logo-wall { grid-template-columns: repeat(3, 1fr); }
  .contact-info { grid-template-columns: 1fr; }
  .cta-teacher-row { flex-direction: column; text-align: center; }
  .cta-teacher-info { text-align: center; }
  /* 汉堡菜单 */
  .nav-hamburger { display: flex; align-items: center; }
  .nav-cta { display: none; }          /* 手机 nav 里隐藏"联系老师"按钮，菜单里有 */
  .nav-menu {
    display: none;
    position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(13,15,14,.97);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column; gap: 0;
    z-index: 99;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a {
    padding: 15px 24px; font-size: 15px;
    border-bottom: 1px solid rgba(255,255,255,.06);
    color: var(--text-2);
  }
  .nav-menu a:last-child { border-bottom: none; }
  .nav { position: sticky; }
  /* 教学模式对比 */
  .model-compare { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .model-stats { flex-wrap: wrap; }
  .model-stat { min-width: 50%; border-bottom: 1px solid var(--border); }
  .model-stat:nth-child(2n) { border-right: none; }
}

/* ============ 手机端专项优化（≤480px）============ */
@media (max-width: 480px) {
  /* Hero — 上下留白更充足 */
  .hero { padding: 96px 0 96px; }
  .hero-title {
    font-size: 24px;
    line-height: 1.45;
    margin: 22px 0 20px;
    letter-spacing: 0;
  }
  .hero-title-neg { font-size: 14px; margin-bottom: 12px; }
  .hero-sub { font-size: 15px; line-height: 1.8; margin-bottom: 28px; }
  .hero-proof-row { margin-top: 22px; }
  .hero-proof-pill { font-size: 12px; padding: 7px 14px; gap: 6px; }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px; margin-top: 44px;
    /* 底部留出浮动按钮 + 安全距离 */
    padding-bottom: 80px;
  }
  .hero-stat { padding: 22px 12px; }
  .hero-stat .num { font-size: 28px; }

  /* 浮动 CTA → 全宽底栏 */
  .float-cta {
    right: 0; left: 0; bottom: 0;
    border-radius: 0;
    padding: 16px 24px;
    justify-content: center;
    font-size: 15px;
    box-shadow: 0 -2px 16px rgba(0,0,0,.3);
  }

  /* 通用 section — 更宽松 */
  .section { padding: 64px 0; }
  .section-title { font-size: 24px; line-height: 1.35; }
  .section-sub { font-size: 14px; line-height: 1.75; }
  .container { padding: 0 20px; }

  /* 教学模式 #model */
  .model-compare { margin-top: 36px; gap: 12px; }
  .model-col { padding: 24px 20px; }
  .model-col-head { font-size: 14px; margin-bottom: 16px; padding-bottom: 12px; }
  .model-list { gap: 12px; }
  .model-list li { font-size: 13.5px; }
  .model-stats { margin-top: 36px; }
  .model-num { font-size: 26px; }
  .model-unit { font-size: 14px; }
  .model-label { font-size: 11px; }
  .model-stat { padding: 22px 10px; }
  .model-conclusion { font-size: 15px; margin-top: 28px; }

  /* 对比卡片（认知差）*/
  .contrast-grid { grid-template-columns: 1fr; }
  .card { padding: 24px 20px; }

  /* 课程卡 */
  .course-name { font-size: 22px; }
  .stages { grid-template-columns: 1fr; }

  /* 讲师/staff */
  .staff-grid { gap: 12px; }
  .staff-card { padding: 24px 20px; }

  /* FAQ */
  .faq-q { font-size: 14px; }
  .faq-a { font-size: 13px; line-height: 1.75; }

  /* CTA 按钮 */
  .btn { padding: 14px 22px; font-size: 14px; }
  .hero-cta .btn { width: 100%; justify-content: center; }

  /* 页面底部留出全宽底栏高度 */
  body { padding-bottom: 60px; }
}