/* =============================================
   1对1英语 — 8区块黄金动线
   ============================================= */
:root {
    --ec-green: #4CAF50; --ec-green-dark: #388E3C; --ec-green-dim: rgba(76,175,80,0.08);
    --ec-green-glow: rgba(76,175,80,0.18); --ec-gold: #F5A623; --ec-red: #E74C3C;
    --ec-bg: #fff; --ec-bg-gray: #F6F8F5; --ec-bg-green: #FAFFFA; --ec-bg-card: #fff;
    --ec-text: #1a1a2e; --ec-text-secondary: #5A6C7D; --ec-text-light: #9BA5B0;
    --ec-border: #E6EAE5; --ec-border-green: rgba(76,175,80,0.25);
    --ec-shadow: 0 2px 16px rgba(0,0,0,0.05); --ec-shadow-md: 0 4px 24px rgba(0,0,0,0.08);
    --ec-shadow-green: 0 2px 16px rgba(76,175,80,0.1);
    --ec-radius: 14px; --ec-radius-lg: 20px; --ec-transition: 0.3s cubic-bezier(.4,0,.2,1);
}
.ec-container { max-width: 1160px; margin: 0 auto; padding: 0 20px; position: relative; z-index: 1; }
.ec-section { padding: 52px 0; position: relative; }
.ec-section-header { text-align: center; margin-bottom: 40px; }
.ec-section-header h2 { font-size: 1.8rem; font-weight: 800; color: var(--ec-text); margin: 0 0 8px; }
.ec-section-header p { font-size: 0.95rem; color: var(--ec-text-secondary); margin: 0 auto; max-width: 520px; }
.ec-highlight { color: var(--ec-green-dark); position: relative; }
.ec-highlight::after { content: ''; position: absolute; bottom: 2px; left: 0; right: 0; height: 5px; background: var(--ec-green-dim); border-radius: 3px; z-index: -1; }

/* === 按钮 === */
.ec-btn { display: inline-flex; flex-direction: column; align-items: center; padding: 13px 26px; border-radius: 50px; font-weight: 700; font-size: 0.96rem; text-decoration: none; cursor: pointer; transition: all var(--ec-transition); border: none; line-height: 1.3; }
.ec-btn-primary { background: linear-gradient(135deg, #4CAF50, #388E3C); color: #fff; box-shadow: 0 4px 18px rgba(76,175,80,0.3); }
.ec-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 26px rgba(76,175,80,0.4); color: #fff; text-decoration: none; }
.ec-btn-outline { background: #fff; color: #388E3C; border: 2px solid #C8E6C9; }
.ec-btn-outline:hover { background: #F1F8E9; border-color: #66BB6A; color: #2E7D32; text-decoration: none; }
.ec-btn-outline-white { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.35); }
.ec-btn-outline-white:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; text-decoration: none; }
.ec-btn-lg { padding: 15px 34px; font-size: 1.05rem; }
.ec-btn-sub { font-size: 0.72rem; font-weight: 400; opacity: 0.8; margin-top: 2px; }

/* ============================================
   页面标识
   ============================================ */
.ec-page-indicator { text-align: center; padding: 75px 0 0; background: #F8FCF8; }
.ec-page-indicator span { display: inline-block; padding: 4px 16px; background: #F1F8E9; color: #388E3C; border-radius: 20px; font-size: 0.78rem; font-weight: 600; }
@media (max-width: 768px) { .ec-page-indicator { padding: 65px 0 0; } }

/* ============================================
   ① HERO
   ============================================ */
.ec-hero { padding: 95px 0 60px; background: linear-gradient(165deg, #F8FFF8 0%, #F1F8E9 30%, #FFFDE7 60%, #F5FCF5 100%); position: relative; overflow: hidden; }
.ec-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 20% 30%, rgba(76,175,80,0.05) 0%, transparent 60%), radial-gradient(ellipse at 80% 60%, rgba(139,195,74,0.04) 0%, transparent 50%); pointer-events: none; }
.ec-hero-bg { position: absolute; inset: 0; pointer-events: none; }
.ec-hero-shape { position: absolute; border-radius: 50%; opacity: 0.35; }
.ec-hero-shape-1 { width: 400px; height: 400px; background: radial-gradient(circle, rgba(76,175,80,0.05), transparent 70%); top: -120px; right: -120px; animation: ecFloat1 8s ease-in-out infinite; }
.ec-hero-shape-2 { width: 280px; height: 280px; background: radial-gradient(circle, rgba(139,195,74,0.04), transparent 70%); bottom: -60px; left: -80px; animation: ecFloat2 10s ease-in-out infinite; }
.ec-hero-shape-3 { width: 200px; height: 200px; background: radial-gradient(circle, rgba(76,175,80,0.04), transparent 70%); top: 40%; left: 50%; animation: ecFloat3 7s ease-in-out infinite; }
@keyframes ecFloat1 { 0%,100%{transform:translate(0,0) scale(1)} 50%{transform:translate(-30px,20px) scale(1.1)} }
@keyframes ecFloat2 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(30px,-20px) scale(1.08)} }
@keyframes ecFloat3 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(-15px,-25px) scale(1.1)} }
.ec-hero-grid { display: flex; align-items: center; justify-content: center; gap: 48px; position: relative; z-index: 1; max-width: 960px; margin: 0 auto; }
.ec-hero-text { flex: 1; max-width: 520px; }
.ec-hero-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; background: #fff; border: 1px solid #C8E6C9; border-radius: 50px; font-size: 0.82rem; color: #388E3C; font-weight: 600; margin-bottom: 18px; box-shadow: 0 2px 6px rgba(0,0,0,0.03); }
.ec-hero-badge-main { padding: 10px 28px; font-size: 1.12rem; font-weight: 800; color: #fff; background: linear-gradient(135deg, #388E3C, #2E7D32); border: none; box-shadow: 0 4px 20px rgba(56,142,60,0.3); letter-spacing: 0.04em; border-radius: 50px; }
.ec-hero-title { font-size: 2.7rem; font-weight: 900; color: var(--ec-text); line-height: 1.2; margin: 0 0 14px; letter-spacing: -0.02em; }
.ec-hero-desc { font-size: 1.02rem; color: var(--ec-text-secondary); line-height: 1.7; margin: 0 0 26px; }
.ec-hero-cta-group { display: flex; gap: 12px; flex-wrap: wrap; }
.ec-hero-reassure { margin-top: 18px; font-size: 0.84rem; color: var(--ec-text-light); }
.ec-hero-guarantee { margin-top: 8px; font-size: 0.8rem; color: #388E3C; font-weight: 600; }
.ec-hero-visual { display: flex; align-items: center; justify-content: center; }
.ec-hero-visual-inner { width: 240px; height: 240px; }
.ec-hero-mascot { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.ec-mascot-circle { width: 240px; height: 240px; display: flex; align-items: center; justify-content: center; animation: ecMascotBounce 3s ease-in-out infinite; }
.ec-mascot-circle img { width: 100%; height: 100%; object-fit: contain; }
@keyframes ecMascotBounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }

/* ============================================
   ② 信任数据 + 年龄选择
   ============================================ */
.ec-trust-age { background: #fff; padding: 0 0 48px; }
.ec-trust-row { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; max-width: 820px; margin: 0 auto; }
.ec-trust-item { text-align: center; padding: 10px 20px; background: #FAFFFA; border: 1px solid var(--ec-border); border-radius: 12px; min-width: 80px; }
.ec-trust-num { font-size: 1.5rem; font-weight: 900; color: #388E3C; line-height: 1.1; }
.ec-trust-num span { color: var(--ec-gold); font-size: 0.8rem; }
.ec-trust-label { font-size: 0.72rem; color: var(--ec-text-light); margin-top: 2px; }

/* ============================================
   ③ MC English Worlds
   ============================================ */
.ec-worlds { background: var(--ec-bg-gray); }
.ec-cefr-bar-wrap { max-width: 820px; margin: 0 auto 36px; }
.ec-cefr-bar { position: relative; height: 5px; background: #E8E8E8; border-radius: 3px; margin-bottom: 8px; }
.ec-cefr-bar .ec-cefr-fill { position: absolute; height: 100%; border-radius: 3px; background: linear-gradient(90deg, #C8E6C9, #66BB6A, #388E3C, #FF9800); }
.ec-cefr-labels { display: flex; justify-content: space-between; padding: 0 5px; }
.ec-cefr-labels span { font-size: 0.7rem; font-weight: 700; color: #4CAF50; }
.ec-cefr-labels span:last-child { color: #FF9800; }
.ec-cefr-exams { display: flex; justify-content: space-between; padding: 0 5px; margin-top: 2px; }
.ec-cefr-exams span { font-size: 0.62rem; color: var(--ec-text-light); font-weight: 600; }
/* 世界卡片 */
.ec-world-card { max-width: 820px; margin: 0 auto 14px; background: #fff; border: 1.5px solid var(--ec-border); border-radius: var(--ec-radius); overflow: hidden; box-shadow: var(--ec-shadow); transition: all var(--ec-transition); }
.ec-world-card:hover { border-color: #81C784; }
.ec-world-exam { border-color: #FFE0B2; }
.ec-world-head { display: flex; align-items: center; gap: 12px; padding: 10px 20px; background: #FAFFFA; border-bottom: 1px solid #E8F5E9; }
.ec-world-exam .ec-world-head { background: #FFFDF5; border-bottom-color: #FFE0B2; }
.ec-world-lv { padding: 3px 10px; background: #4CAF50; color: #fff; border-radius: 6px; font-size: 0.72rem; font-weight: 800; }
.ec-world-lv-gold { background: #FF9800; }
.ec-world-dim { font-weight: 700; color: var(--ec-text); font-size: 0.94rem; flex: 1; }
.ec-world-age { font-size: 0.72rem; color: var(--ec-text-light); }
.ec-world-sessions { font-size: 0.7rem; color: var(--ec-text-light); font-weight: 500; }
.ec-world-cefr { padding: 2px 10px; background: #E8F5E9; color: #388E3C; border-radius: 10px; font-size: 0.68rem; font-weight: 700; }
.ec-world-exam .ec-world-cefr { background: #FFF8E1; color: #E65100; }
.ec-world-core { display: flex; gap: 0; }
.ec-world-left { flex: 1; padding: 14px 20px; }
.ec-world-left p { font-size: 0.84rem; color: var(--ec-text-secondary); line-height: 1.6; margin: 0 0 10px; }
.ec-world-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.ec-world-tags span { padding: 3px 10px; background: #F1F8E9; border: 1px solid #E8F5E9; border-radius: 14px; font-size: 0.72rem; color: #388E3C; font-weight: 600; }
.ec-world-tags .ec-wt-gold { background: #FFFDF5; border-color: #FFE0B2; color: #E65100; }
.ec-world-right { width: 260px; padding: 16px 18px; border-left: 1px solid #E8F5E9; display: flex; align-items: flex-start; }
.ec-world-goal { font-size: 0.78rem; color: #388E3C; line-height: 1.8; }
.ec-world-goal strong { display: block; font-size: 0.74rem; color: var(--ec-text); margin-bottom: 6px; }
.ec-world-exam .ec-world-right { border-left-color: #FFE0B2; }
.ec-world-exam .ec-world-goal { color: #E65100; }
/* 冒险路径 */
.ec-journey { margin-top: 28px; }
.ec-journey-path { display: flex; align-items: center; justify-content: center; gap: 0; }
.ec-journey-step { width: 56px; height: 56px; border-radius: 50%; background: #fff; border: 2px solid #C8E6C9; display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: 1.2rem; line-height: 1.15; font-weight: 700; color: var(--ec-text); box-shadow: var(--ec-shadow); }
.ec-journey-step small { font-size: 0.5rem; font-weight: 600; color: var(--ec-text-light); }
.ec-journey-end { border-color: #FFB74D; background: #FFFDF5; }
.ec-journey-line { width: 22px; height: 2px; background: #C8E6C9; flex-shrink: 0; }

/* ============================================
   ④ 教师团队
   ============================================ */
.ec-teachers { background: #fff; }
.ec-teacher-filters { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.ec-filter-btn { padding: 7px 18px; border-radius: 50px; border: 1.5px solid var(--ec-border); background: #fff; color: var(--ec-text-secondary); font-size: 0.83rem; font-weight: 600; cursor: pointer; transition: all var(--ec-transition); }
.ec-filter-btn:hover { border-color: #81C784; color: #388E3C; }
.ec-filter-btn.active { background: #F1F8E9; color: #388E3C; border-color: #A5D6A7; }
.ec-teacher-carousel-wrap { display: flex; align-items: center; gap: 12px; max-width: 1000px; margin: 0 auto; }
.ec-teacher-carousel-viewport { flex: 1; overflow: hidden; border-radius: var(--ec-radius); }
.ec-teacher-carousel-track { display: flex; gap: 18px; transition: transform 0.5s cubic-bezier(.4,0,.2,1); will-change: transform; padding: 8px 4px; }
.ec-teacher-card { min-width: 280px; max-width: 280px; flex-shrink: 0; background: #fff; border-radius: var(--ec-radius-lg); overflow: hidden; box-shadow: var(--ec-shadow); border: 1px solid var(--ec-border); cursor: pointer; transition: all var(--ec-transition); }
.ec-teacher-card:hover { transform: translateY(-4px); border-color: #C8E6C9; box-shadow: 0 10px 36px rgba(0,0,0,0.1); }
.ec-teacher-video-wrap { position: relative; width: 100%; aspect-ratio: 4/3; background: #1a1a2e; overflow: hidden; cursor: pointer; border-bottom: 1px solid var(--ec-border); }
.ec-teacher-video-wrap video { width: 100%; height: 100%; object-fit: cover; }
.ec-video-play-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.2); display: flex; align-items: center; justify-content: center; transition: all var(--ec-transition); }
.ec-video-play-overlay .ec-play-icon { width: 50px; height: 50px; border-radius: 50%; background: rgba(76,175,80,0.88); display: flex; align-items: center; justify-content: center; font-size: 0.9rem; color: #fff; box-shadow: 0 3px 16px rgba(76,175,80,0.3); transition: all var(--ec-transition); }
.ec-teacher-video-wrap:hover .ec-play-icon { transform: scale(1.1); background: #4CAF50; }
.ec-video-playing .ec-video-play-overlay { opacity: 0; pointer-events: none; }
.ec-teacher-info { padding: 14px; }
.ec-teacher-header { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.ec-teacher-avatar { width: 38px; height: 38px; border-radius: 50%; background: linear-gradient(135deg, #4CAF50, #388E3C); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.95rem; flex-shrink: 0; }
.ec-teacher-name { font-weight: 700; font-size: 0.9rem; color: var(--ec-text); }
.ec-teacher-country { font-size: 0.7rem; color: var(--ec-text-light); }
.ec-teacher-stars { color: #F5A623; font-size: 0.7rem; margin-bottom: 6px; }
.ec-teacher-stars span { color: var(--ec-text-light); margin-left: 3px; }
.ec-teacher-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 8px; }
.ec-teacher-tag { padding: 2px 10px; border-radius: 14px; font-size: 0.66rem; font-weight: 600; background: #F1F8E9; color: #388E3C; }
.ec-teacher-tag.featured { background: #FFF8E1; color: #E65100; }
.ec-teacher-badges { display: flex; gap: 3px; margin-top: 2px; }
.ec-teacher-badge { padding: 1px 5px; border-radius: 3px; font-size: 0.58rem; font-weight: 700; background: #E8F5E9; color: #2E7D32; }
.ec-teacher-badge.gold { background: #FFF8E1; color: #E65100; }
.ec-teacher-footer { display: flex; justify-content: space-between; padding-top: 8px; border-top: 1px solid var(--ec-border); font-size: 0.7rem; color: var(--ec-text-light); }
.ec-carousel-btn { width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--ec-border); background: #fff; color: #388E3C; font-size: 0.9rem; cursor: pointer; display: flex; align-items: center; justify-content: center; flex-shrink: 0; box-shadow: var(--ec-shadow); transition: all var(--ec-transition); }
.ec-carousel-btn:hover { background: #F1F8E9; border-color: #81C784; }
.ec-carousel-btn:disabled { opacity: 0.2; cursor: not-allowed; }
.ec-carousel-dots { display: flex; justify-content: center; gap: 6px; margin-top: 22px; }
.ec-carousel-dots span { width: 8px; height: 8px; border-radius: 50%; background: #E0E0E0; cursor: pointer; transition: all var(--ec-transition); }
.ec-carousel-dots span.active { background: #4CAF50; width: 22px; border-radius: 4px; }
/* 弹窗 */
.ec-teacher-modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 9999; align-items: center; justify-content: center; padding: 20px; }
.ec-teacher-modal-overlay.active { display: flex; }
.ec-teacher-modal { background: #fff; border-radius: var(--ec-radius-lg); max-width: 660px; width: 100%; max-height: 85vh; overflow-y: auto; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.2); animation: ecModalIn 0.3s ease-out; }
@keyframes ecModalIn { from{opacity:0;transform:translateY(20px) scale(0.95)} to{opacity:1;transform:translateY(0) scale(1)} }
.ec-modal-close { position: absolute; top: 10px; right: 14px; width: 32px; height: 32px; border-radius: 50%; border: 1px solid #E0E0E0; background: #fff; font-size: 1.2rem; cursor: pointer; color: #999; }
.ec-modal-close:hover { background: #FFF0F0; border-color: #FCA5A5; color: var(--ec-red); }
.ec-modal-body { padding: 24px; }
.ec-modal-video-wrap { width: 100%; aspect-ratio: 16/9; background: #1a1a2e; border-radius: var(--ec-radius); overflow: hidden; margin-bottom: 16px; }
.ec-modal-video-wrap video { width: 100%; height: 100%; object-fit: cover; }
.ec-modal-teacher-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.ec-modal-avatar { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, #4CAF50, #388E3C); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; font-weight: 800; }
.ec-modal-name { font-size: 1.2rem; font-weight: 800; color: var(--ec-text); }
.ec-modal-country { font-size: 0.85rem; color: var(--ec-text-secondary); }
.ec-modal-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-bottom: 14px; }
.ec-modal-stat { text-align: center; padding: 12px; background: #F8FAF5; border-radius: var(--ec-radius); border: 1px solid var(--ec-border); }
.ec-modal-stat-num { font-size: 1.1rem; font-weight: 700; color: #388E3C; }
.ec-modal-stat-label { font-size: 0.7rem; color: var(--ec-text-light); }
.ec-modal-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.ec-modal-tags .ec-teacher-tag { font-size: 0.78rem; padding: 4px 14px; }
.ec-modal-intro { font-size: 0.9rem; color: var(--ec-text-secondary); line-height: 1.7; }

/* ============================================
   ⑤ 课堂实景滚动
   ============================================ */
.ec-gallery { background: #fff; }
.ec-gallery-wrap { max-width: 820px; margin: 0 auto; overflow: hidden; border-radius: var(--ec-radius); }
.ec-gallery-track { display: flex; gap: 14px; animation: ecGalleryScroll 20s linear infinite; width: max-content; }
.ec-gallery-track:hover { animation-play-state: paused; }
.ec-gallery-slide { flex-shrink: 0; width: 220px; }
.ec-gallery-img { padding: 40px 20px; background: #FAFFFA; border: 1px solid #E8F5E9; border-radius: 12px; text-align: center; font-size: 2rem; color: var(--ec-text); font-weight: 600; line-height: 1.6; transition: all var(--ec-transition); }
.ec-gallery-img:hover { border-color: #81C784; box-shadow: var(--ec-shadow-green); }
@keyframes ecGalleryScroll { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }
/* ============================================
   ⑥ 三栏对比表
   ============================================ */
.ec-compare-full { background: var(--ec-bg-gray); }
.ec-compare-table-v2 { max-width: 860px; margin: 0 auto; border-radius: var(--ec-radius); overflow: hidden; border: 1px solid var(--ec-border); background: #fff; }
.ec-ct-head { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1.3fr; background: #FAFFFA; font-weight: 700; font-size: 0.88rem; color: var(--ec-text); }
.ec-ct-head div { padding: 14px 12px; border-bottom: 2px solid #C8E6C9; text-align: center; }
.ec-ct-head div:first-child { text-align: left; padding-left: 18px; }
.ec-ct-ours { color: #388E3C !important; background: rgba(76,175,80,0.04); }
.ec-ct-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1.3fr; font-size: 0.84rem; color: var(--ec-text-secondary); transition: all var(--ec-transition); }
.ec-ct-row:hover { background: #FAFFFA; }
.ec-ct-row div { padding: 12px; text-align: center; border-bottom: 1px solid var(--ec-border); }
.ec-ct-row div:first-child { text-align: left; padding-left: 18px; font-weight: 600; color: var(--ec-text); }
.ec-ct-row:last-child div { border-bottom: none; }
.ec-ct-row .ec-ct-ours { color: #388E3C; font-weight: 600; background: rgba(76,175,80,0.02); }
.ec-ct-row .ec-ct-ours strong { color: #388E3C; }

/* ============================================
   ⑥ 价格 + 试听
   ============================================ */
.ec-pricing { background: var(--ec-bg-gray); }
.ec-pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; max-width: 880px; margin: 0 auto; }
.ec-pricing-card { background: #fff; border: 1px solid var(--ec-border); border-radius: var(--ec-radius); padding: 22px 16px; text-align: center; box-shadow: var(--ec-shadow); transition: all var(--ec-transition); position: relative; }
.ec-pricing-card:hover { transform: translateY(-3px); box-shadow: var(--ec-shadow-md); }
.ec-pricing-hot { border-color: #4CAF50; box-shadow: 0 4px 24px rgba(76,175,80,0.12); }
.ec-pricing-badge { position: absolute; top: -10px; left: 50%; transform: translateX(-50%); padding: 3px 14px; background: linear-gradient(135deg, #FF6B6B, #ee5a24); color: #fff; border-radius: 10px; font-size: 0.68rem; font-weight: 700; white-space: nowrap; }
.ec-pricing-name { font-size: 0.85rem; color: var(--ec-text-secondary); margin-bottom: 2px; }
.ec-pricing-count { font-size: 2rem; font-weight: 900; color: var(--ec-text); margin-bottom: 4px; }
.ec-pricing-price { font-size: 1.3rem; font-weight: 800; color: #388E3C; margin-bottom: 2px; }
.ec-pricing-per { font-size: 0.7rem; color: var(--ec-text-light); margin-bottom: 6px; }
.ec-pricing-tag { font-size: 0.68rem; padding: 3px 10px; background: #F1F8E9; color: #388E3C; border-radius: 10px; display: inline-block; font-weight: 600; }
.ec-pricing-note { text-align: center; margin-top: 16px; font-size: 0.8rem; color: var(--ec-text-light); }
.ec-trial-inline { display: flex; align-items: center; justify-content: center; gap: 28px; flex-wrap: wrap; margin-top: 28px; padding: 24px 28px; background: #fff; border: 2px solid #C8E6C9; border-radius: var(--ec-radius); max-width: 680px; margin-left: auto; margin-right: auto; box-shadow: var(--ec-shadow-green); }
.ec-trial-inline-text { font-size: 0.95rem; color: var(--ec-text); line-height: 1.9; }
.ec-trial-inline-text strong { color: #388E3C; }
.ec-trial-inline-qrs { display: flex; gap: 16px; }
.ec-trial-inline-qr { text-align: center; }
.ec-trial-inline-qr img { width: 90px; height: 90px; border-radius: 8px; border: 1px solid var(--ec-border); }
.ec-trial-inline-qr span { display: block; font-size: 0.7rem; color: var(--ec-text-light); margin-top: 4px; }
.ec-trial-phone { font-size: 0.85rem; color: var(--ec-text-light); }

/* ============================================
   ⑦ 家长好评
   ============================================ */
.ec-testimonials { background: #fff; }
.ec-testimonial-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 760px; margin: 0 auto; }
.ec-testimonial-card { background: #FAFFFA; border: 1px solid #E8F5E9; border-radius: var(--ec-radius); padding: 20px; transition: all var(--ec-transition); }
.ec-testimonial-card:hover { border-color: #C8E6C9; }
.ec-testimonial-stars { color: #F5A623; font-size: 0.8rem; margin-bottom: 8px; }
.ec-testimonial-text { font-size: 0.86rem; color: var(--ec-text-secondary); line-height: 1.65; margin-bottom: 10px; }
.ec-testimonial-author { font-size: 0.78rem; color: #388E3C; font-weight: 600; }

/* ============================================
   ⑧ FAQ + Footer CTA
   ============================================ */
.ec-faq { background: var(--ec-bg-gray); }
.ec-faq-grid { max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; gap: 6px; }
.ec-faq-item { border: 1px solid var(--ec-border); border-radius: var(--ec-radius); overflow: hidden; background: #fff; transition: all var(--ec-transition); }
.ec-faq-item:hover { border-color: #C8E6C9; }
.ec-faq-item.open { border-color: #A5D6A7; }
.ec-faq-q { padding: 16px 20px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; color: var(--ec-text); font-size: 0.92rem; user-select: none; transition: all var(--ec-transition); }
.ec-faq-q:hover { background: #FAFFFA; }
.ec-faq-q i { color: var(--ec-text-light); font-size: 0.75rem; transition: transform var(--ec-transition); }
.ec-faq-item.open .ec-faq-q { color: #388E3C; }
.ec-faq-item.open .ec-faq-q i { transform: rotate(180deg); color: #4CAF50; }
.ec-faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.ec-faq-item.open .ec-faq-a { max-height: 260px; }
.ec-faq-a p { padding: 0 20px 16px; margin: 0; font-size: 0.86rem; color: var(--ec-text-secondary); line-height: 1.7; }
.ec-footer-cta { background: linear-gradient(135deg, #388E3C, #2E7D32); color: #fff; padding: 56px 0; }
.ec-footer-cta-box { text-align: center; max-width: 560px; margin: 0 auto; }
.ec-footer-cta-box h2 { font-size: 1.8rem; font-weight: 800; color: #fff; margin: 0 0 8px; }
.ec-footer-cta-box h2 .ec-highlight { color: #C8E6C9; }
.ec-footer-cta-box p { font-size: 0.98rem; opacity: 0.9; margin: 0 0 22px; }
.ec-footer-cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ============================================
   学员案例
   ============================================ */
.ec-stories { background: #fff; }
.ec-stories-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; max-width: 860px; margin: 0 auto; }
.ec-story-card { text-align: center; padding: 24px 18px; background: #FAFFFA; border: 1px solid #E8F5E9; border-radius: var(--ec-radius); transition: all var(--ec-transition); }
.ec-story-card:hover { transform: translateY(-3px); box-shadow: var(--ec-shadow-green); }
.ec-story-avatar { font-size: 2.4rem; margin-bottom: 8px; }
.ec-story-card h4 { font-size: 0.92rem; font-weight: 700; color: var(--ec-text); margin: 0 0 10px; }
.ec-story-before { font-size: 0.8rem; color: var(--ec-text-light); margin: 0; }
.ec-story-arrow { font-size: 0.75rem; color: #4CAF50; font-weight: 700; margin: 6px 0; }
.ec-story-after { font-size: 0.84rem; color: #388E3C; font-weight: 700; margin: 0; }
@media (max-width: 768px) { .ec-stories-grid { grid-template-columns: 1fr; } }

/* ============================================
   交叉引流
   ============================================ */
.ec-crosslink { background: var(--ec-bg-gray); padding: 40px 0; }
.ec-crosslink-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; max-width: 720px; margin: 0 auto; }
.ec-crosslink-card { flex: 1; min-width: 180px; padding: 18px 14px; background: #fff; border: 1.5px solid var(--ec-border); border-radius: var(--ec-radius); text-align: center; text-decoration: none; color: var(--ec-text-secondary); font-size: 0.85rem; line-height: 1.6; transition: all var(--ec-transition); }
.ec-crosslink-card:hover { border-color: #81C784; transform: translateY(-2px); box-shadow: var(--ec-shadow-green); }
.ec-crosslink-card strong { display: block; font-size: 1rem; color: var(--ec-text); margin: 4px 0 2px; }
.ec-crosslink-card small { font-size: 0.75rem; }
.ec-crosslink-card.active { border-color: #4CAF50; background: #FAFFFA; box-shadow: var(--ec-shadow-green); }

/* ============================================
   进阶课程折叠
   ============================================ */
.ec-advanced-toggle { max-width: 860px; margin: 16px auto 0; padding: 14px 20px; background: #fff; border: 1px solid var(--ec-border); border-radius: var(--ec-radius); cursor: pointer; font-size: 0.9rem; color: var(--ec-text-secondary); font-weight: 600; text-align: center; transition: all var(--ec-transition); user-select: none; }
.ec-advanced-toggle:hover { border-color: #81C784; color: #388E3C; background: #FAFFFA; }
.ec-advanced-arrow { display: inline-block; transition: transform var(--ec-transition); margin-right: 4px; }
.ec-advanced-toggle.open .ec-advanced-arrow { transform: rotate(90deg); }
.ec-advanced-courses { display: none; }
.ec-advanced-courses.open { display: block; }

/* ============================================
   响应式
   ============================================ */

/* --- 平板 (768-1024px) --- */
@media (min-width: 769px) and (max-width: 1024px) {
    .ec-hero { padding: 100px 0 55px; }
    .ec-hero-title { font-size: 2.2rem; }
    .ec-hero-grid { gap: 32px; }
    .ec-hero-visual-inner { width: 220px; height: 220px; }
    .ec-mascot-circle { width: 180px !important; height: 180px !important; }
    .ec-pricing-grid { grid-template-columns: repeat(2, 1fr); max-width: 560px; }
    .ec-world-core { gap: 0; }
    .ec-world-right { width: 200px; }
    .ec-container { padding: 0 24px; }
    .ec-compare-table-v2 { max-width: 100%; }
    .ec-trust-row { gap: 10px; }
    .ec-trust-item { padding: 8px 14px; }
    .ec-crosslink-card { min-width: 160px; }
}

/* --- 大屏手机/小平板 (<769px) --- */
@media (max-width: 768px) {
    .ec-hero { padding: 80px 0 32px; }
    .ec-hero-grid { flex-direction: column; gap: 20px; text-align: center; }
    .ec-hero-text { max-width: 100%; }
    .ec-hero-title { font-size: 1.8rem; }
    .ec-hero-desc { font-size: 0.95rem; }
    .ec-hero-badge-main { font-size: 0.88rem; padding: 8px 18px; }
    .ec-hero-reassure { font-size: 0.78rem; }
    .ec-hero-guarantee { font-size: 0.75rem; }
    .ec-hero-cta-group { justify-content: center; }
    .ec-hero-visual-inner { width: 140px; height: 140px; }
    .ec-mascot-circle { width: 140px !important; height: 140px !important; }
    .ec-section { padding: 44px 0; }
    .ec-section-header { margin-bottom: 32px; }
    .ec-section-header h2 { font-size: 1.4rem; }
    .ec-section-header p { font-size: 0.88rem; }
    .ec-container { padding: 0 16px; }

    /* 级别卡片 */
    .ec-world-card { margin: 0 0 12px; }
    .ec-world-head { flex-wrap: wrap; gap: 8px; padding: 10px 16px; }
    .ec-world-head span { font-size: 0.72rem; }
    .ec-world-core { flex-direction: column; }
    .ec-world-left { padding: 14px 16px; }
    .ec-world-right { width: 100%; border-left: none; border-top: 1px solid #E8F5E9; padding: 12px 16px; }
    .ec-world-topics { grid-template-columns: repeat(2, 1fr); }

    /* 价格 */
    .ec-pricing-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; max-width: 420px; margin: 0 auto; }
    .ec-pricing-card { padding: 16px 12px; }
    .ec-pricing-count { font-size: 1.6rem; }
    .ec-pricing-price { font-size: 1.1rem; }

    /* 教师 */
    .ec-teacher-card { min-width: 240px; max-width: 240px; }
    .ec-teacher-carousel-wrap { gap: 6px; }
    .ec-carousel-btn { width: 34px; height: 34px; font-size: 0.8rem; }

    /* 评价 */
    .ec-testimonial-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }

    /* 试听 */
    .ec-trial-inline { flex-direction: column; text-align: center; padding: 18px; gap: 16px; }
    .ec-trial-inline-qrs { justify-content: center; }

    /* 对比表 */
    .ec-ct-head, .ec-ct-row { font-size: 0.7rem; }
    .ec-ct-head div, .ec-ct-row div { padding: 6px 4px; }

    /* 底部 */
    .ec-footer-cta-box h2 { font-size: 1.3rem; }

    /* 交叉引流 */
    .ec-crosslink-card { min-width: 140px; padding: 14px 10px; font-size: 0.78rem; }

    /* 学员案例 */
    .ec-stories-grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }

    /* 冒险路径 */
    .ec-journey-step { width: 48px; height: 48px; font-size: 1rem; }
    .ec-journey-line { width: 16px; }

    /* CEFR条 */
    .ec-cefr-exams { display: none; }

    /* 触摸优化 */
    .ec-btn { min-height: 44px; justify-content: center; }
    .ec-filter-btn { min-height: 36px; }
    .ec-faq-q { min-height: 44px; align-items: center; }
    .ec-carousel-btn { min-width: 44px; min-height: 44px; }
}

/* --- 小屏手机 (<480px) --- */
@media (max-width: 480px) {
    .ec-hero { padding: 70px 0 28px; }
    .ec-hero-title { font-size: 1.45rem; }
    .ec-hero-desc { font-size: 0.85rem; line-height: 1.6; }
    .ec-hero-badge-main { font-size: 0.78rem; padding: 6px 14px; }
    .ec-hero-cta-group { flex-direction: column; align-items: center; }
    .ec-hero-cta-group .ec-btn { width: 100%; max-width: 300px; text-align: center; }
    .ec-hero-reassure { font-size: 0.74rem; }
    .ec-hero-guarantee { font-size: 0.72rem; }
    .ec-hero-visual-inner { width: 110px; height: 110px; }
    .ec-mascot-circle { width: 110px !important; height: 110px !important; }
    .ec-trust-row { gap: 8px; }
    .ec-trust-item { min-width: auto; padding: 6px 10px; }
    .ec-trust-num { font-size: 1.2rem; }
    .ec-trust-label { font-size: 0.65rem; }
    .ec-section { padding: 36px 0; }
    .ec-section-header h2 { font-size: 1.25rem; }
    .ec-section-header p { font-size: 0.82rem; }

    .ec-pricing-grid { grid-template-columns: 1fr; max-width: 240px; }
    .ec-pricing-hot { border-color: #4CAF50; }

    .ec-teacher-card { min-width: 210px; max-width: 210px; }
    .ec-teacher-carousel-wrap { gap: 4px; }

    .ec-world-head { flex-wrap: wrap; gap: 6px; }
    .ec-world-topics { grid-template-columns: 1fr; }

    .ec-journey-step { width: 38px; height: 38px; font-size: 0.78rem; }
    .ec-journey-line { width: 10px; }

    .ec-ct-head, .ec-ct-row { font-size: 0.62rem; }
    .ec-compare-table-v2 { overflow-x: auto; }

    .ec-crosslink-row { flex-direction: column; max-width: 220px; }
    .ec-crosslink-card { min-width: auto; }

    .ec-btn-lg { padding: 12px 24px; font-size: 0.95rem; }

    .ec-faq-q { font-size: 0.85rem; padding: 14px 16px; }
    .ec-faq-a p { font-size: 0.8rem; }
}