/* ===== 基础重置 & 全局变量 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --primary: #1a4b8c;
    --primary-light: #2a6bb0;
    --primary-dark: #0d2f5a;
    --accent: #e67e22;
    --bg: #f5f7fa;
    --bg-card: #ffffff;
    --text: #1e2a3a;
    --text-light: #5a6a7a;
    --text-white: #ffffff;
    --border: #e2e8f0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    --radius: 8px;
    --radius-lg: 16px;
    --font: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
    --transition: 0.3s ease;
    --header-bg: #ffffff;
    --header-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    --tag-bg: #eef3f9;
    --tag-color: var(--primary);
    --bottom-nav-height: 64px;
    --edu-red: #c0392b;
    --edu-red-dark: #922b21;
}
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    padding-bottom: calc(var(--bottom-nav-height) + 24px);
    overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-light); }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 头部 ===== */
.header {
    background: var(--header-bg); box-shadow: var(--header-shadow);
    position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; flex-wrap: wrap; gap: 8px; }
.logo {
    font-size: 24px; font-weight: 800; color: var(--primary);
    letter-spacing: -0.5px; display: flex; align-items: center; gap: 6px;
    flex-shrink: 0; text-decoration: none;
}
.logo span { color: var(--text); font-weight: 300; }
.logo .badge {
    font-size: 11px; background: var(--primary); color: #fff;
    padding: 2px 10px; border-radius: 20px; font-weight: 600; letter-spacing: 0.3px;
}
.header-phone {
    display: flex; align-items: center; gap: 6px; font-size: 15px;
    font-weight: 600; color: var(--primary); margin-left: auto;
    margin-right: 12px; white-space: nowrap;
}
.header-phone .icon { font-size: 18px; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a {
    font-size: 15px; font-weight: 500; color: var(--text);
    padding: 6px 2px; border-bottom: 2px solid transparent; transition: all var(--transition);
}
.nav a:hover, .nav a.active { color: var(--primary); border-bottom-color: var(--primary); }
.nav a.active { font-weight: 600; }
.nav a.btn-nav {
    background: var(--primary); color: #fff; padding: 8px 22px;
    border-radius: 30px; border-bottom: none; font-weight: 600;
}
.nav a.btn-nav:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,75,140,.25); }
.menu-toggle { display: none; font-size: 26px; background: none; border: none; color: var(--text); cursor: pointer; padding: 4px 8px; }

/* ===== 新闻卡片 ===== */
.section-title {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--border);
}
.section-title h2 { font-size: 22px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 10px; }
.section-title h2 .count { font-size: 14px; font-weight: 400; color: var(--text-light); background: var(--bg); padding: 0 12px; border-radius: 20px; }
.section-title .more { font-size: 14px; font-weight: 500; color: var(--primary); cursor: pointer; transition: all var(--transition); }
.section-title .more:hover { color: var(--primary-light); transform: translateX(4px); }
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; margin-bottom: 40px; }
.news-card {
    background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); transition: all var(--transition);
    border: 1px solid var(--border); display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,.08); border-color: var(--primary-light); }
.news-card .card-img {
    height: 180px; background: var(--border); display: flex; align-items: center;
    justify-content: center; font-size: 36px; color: var(--text-light);
    background-image: linear-gradient(135deg, var(--border), var(--bg));
    position: relative; overflow: hidden;
}
.news-card .card-img .img-label {
    position: absolute; bottom: 12px; left: 12px; background: var(--primary);
    color: #fff; font-size: 11px; padding: 2px 12px; border-radius: 12px;
    font-weight: 600; letter-spacing: .3px;
}
.news-card .card-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.news-card .card-body .meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--text-light); margin-bottom: 10px; }
.news-card .card-body .meta .cat { background: var(--tag-bg); color: var(--tag-color); padding: 0 12px; border-radius: 12px; font-weight: 600; font-size: 12px; }
.news-card .card-body h3 { font-size: 18px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; color: var(--text); }
.news-card .card-body h3 a { color: inherit; }
.news-card .card-body h3 a:hover { color: var(--primary); }
.news-card .card-body p { color: var(--text-light); font-size: 14px; line-height: 1.6; margin-bottom: 12px; flex: 1; }
.news-card .card-body .footer {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px; color: var(--text-light); border-top: 1px solid var(--border);
    padding-top: 12px; margin-top: auto;
}
.news-card .card-body .footer .read { color: var(--primary); font-weight: 500; font-size: 13px; }

/* ===== 列表页 / 内容页 ===== */
.breadcrumb {
    padding: 18px 0 10px; font-size: 14px; color: var(--text-light);
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--text); font-weight: 500; }
.list-header { margin-bottom: 24px; }
.list-header h1 { font-size: 28px; font-weight: 800; color: var(--text); }
.list-header p { color: var(--text-light); font-size: 15px; margin-top: 4px; }
.detail-header { margin: 16px 0 24px; }
.detail-header h1 { font-size: 32px; font-weight: 800; line-height: 1.3; color: var(--text); margin-bottom: 12px; }
.detail-meta { display: flex; align-items: center; gap: 20px; font-size: 14px; color: var(--text-light); flex-wrap: wrap; }
.detail-meta .author { font-weight: 500; color: var(--text); }
.detail-meta .cat { background: var(--tag-bg); color: var(--tag-color); padding: 0 14px; border-radius: 12px; font-weight: 600; font-size: 13px; }
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin: 24px 0 20px; }
.tabs .tab-btn {
    padding: 12px 28px; font-size: 15px; font-weight: 600;
    background: transparent; border: none; border-bottom: 3px solid transparent;
    cursor: pointer; color: var(--text-light); transition: all var(--transition);
}
.tabs .tab-btn:hover { color: var(--text); }
.tabs .tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; padding: 20px 0 12px; animation: fadeUp .35s ease; }
.tab-content.active { display: block; }
.tab-content .content-body { font-size: 16px; line-height: 1.8; color: var(--text); }
.tab-content .content-body p { margin-bottom: 16px; }
.tab-content .content-body h3 { font-size: 20px; font-weight: 700; margin: 24px 0 12px; }
.tab-content .content-body ul { list-style: disc; padding-left: 24px; margin-bottom: 16px; }
.tab-content .content-body ul li { margin-bottom: 6px; }

/* ================================================== */
/* ===== 三种宣传板块风格 ===== */
/* ================================================== */
.promo-carousel {
    position: relative; border-radius: var(--radius); overflow: hidden;
    margin: 0 0 24px 0; width: 100%; box-shadow: var(--shadow);
    aspect-ratio: 21/7; min-height: 140px;
}
.promo-carousel .slides {
    display: flex; width: 100%; height: 100%;
    transition: transform .6s cubic-bezier(.25,.46,.45,.94);
}
.promo-carousel .slide { flex: 0 0 100%; height: 100%; position: relative; overflow: hidden; }
.promo-carousel .slide img { display: block; width: 100%; height: 100%; object-fit: cover; }
.promo-carousel .nav-btn {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 10;
    background: rgba(0,0,0,.35); backdrop-filter: blur(4px); color: #fff;
    border: none; width: 36px; height: 36px; border-radius: 50%;
    font-size: 18px; cursor: pointer; transition: all var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.promo-carousel .nav-btn:hover { background: rgba(0,0,0,.6); transform: translateY(-50%) scale(1.06); }
.promo-carousel .nav-btn.prev { left: 12px; }
.promo-carousel .nav-btn.next { right: 12px; }
.promo-carousel .dots {
    position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%); z-index: 10;
    display: flex; gap: 8px;
}
.promo-carousel .dots .dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: rgba(255,255,255,.4); border: none; cursor: pointer;
    transition: all var(--transition); padding: 0;
}
.promo-carousel .dots .dot.active { background: #fff; transform: scale(1.2); }

/* ---------- 风格 A：墨绿高端 ---------- */
.promo-a {
    --pa-main: #0f3d3e; --pa-gold: #c9a96e; --pa-gold-dark: #a88a4e;
    --pa-bg-soft: #f7f4ef; --pa-text: #1f2a2e; --pa-text-light: #5f6b6b; --pa-border: #e6dfd3;
}
.promo-a .section-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px; padding-bottom: 10px;padding-top: 14px; border-bottom: 2px solid var(--pa-border);
}
.promo-a .section-head h2 {
    font-size: 22px; font-weight: 800; color: var(--pa-main);
    display: flex; align-items: center; gap: 10px;
    font-family: Georgia, 'Noto Serif SC', serif; letter-spacing: 1px;
}
.promo-a .section-head h2 .tag { font-size: 11px; font-weight: 700; color: #fff; background: var(--pa-gold); padding: 3px 12px; letter-spacing: 1.5px; }
.promo-a .section-head .more { font-size: 13px; font-weight: 500; color: var(--pa-gold); cursor: pointer; }
.promo-a .promo-carousel { border-radius: 12px; }
.promo-a .promo-carousel .nav-btn { border: 1px solid var(--pa-gold); border-radius: 50%; }
.promo-a .promo-carousel .nav-btn:hover { background: var(--pa-gold); border-color: var(--pa-gold); }
.promo-a .promo-carousel .dots .dot { width: 24px; height: 4px; border-radius: 0; }
.promo-a .promo-carousel .dots .dot.active { background: var(--pa-gold); transform: none; width: 36px; }
.promo-a .hero-card {
    background: var(--pa-main); border-radius: 12px;
    padding: 32px 36px; margin-bottom: 28px;
    box-shadow: 0 8px 28px rgba(15,61,62,.2); color: #fff;
}
.promo-a .hero-card .badge { display: inline-block; background: var(--pa-gold); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 18px; letter-spacing: 2px; margin-bottom: 10px; }
.promo-a .hero-card h3 { font-size: 24px; font-weight: 800; color: #fff; margin-bottom: 16px; font-family: Georgia, serif; letter-spacing: 1px; }
.promo-a .hero-card .tags { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-bottom: 20px; }
.promo-a .hero-card .tags .t { background: rgba(255,255,255,.08); border: 1px solid rgba(201,169,110,.4); padding: 4px 16px; font-size: 13px; color: #e8e0d0; }
.promo-a .hero-card .stats { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; }
.promo-a .hero-card .stats .left { display: flex; flex-wrap: wrap; gap: 24px 48px; }
.promo-a .hero-card .stats .item { display: flex; flex-direction: column; }
.promo-a .hero-card .stats .item .num { font-size: 30px; font-weight: 900; color: var(--pa-gold); line-height: 1.2; font-family: Georgia, serif; }
.promo-a .hero-card .stats .item .label { font-size: 13px; color: rgba(255,255,255,.6); }
.promo-a .hero-card .stats .btn { display: inline-block; background: var(--pa-gold); color: #fff; padding: 12px 36px; font-weight: 700; font-size: 15px; letter-spacing: 1px; cursor: pointer; transition: all var(--transition); text-align: center; }
.promo-a .hero-card .stats .btn:hover { background: var(--pa-gold-dark); color: #fff; }
.promo-a .hero-card .stats .phone { font-size: 13px; color: rgba(255,255,255,.6); }
.promo-a .hero-card .stats .phone strong { color: #fff; }
.promo-a .slogan { font-size: 28px; font-weight: 800; color: var(--pa-main); text-align: center; line-height: 1.3; margin-bottom: 8px; font-family: Georgia, serif; letter-spacing: 2px; }
.promo-a .slogan-sub { font-size: 15px; color: var(--pa-text-light); text-align: center; margin-bottom: 26px; letter-spacing: 1px; }
.promo-a .pk-head { display: flex; align-items: center; margin-bottom: 20px; border: 1px solid var(--pa-border); }
.promo-a .pk-head .l { flex: 1; background: var(--pa-gold); color: #fff; font-size: 16px; font-weight: 700; padding: 20px 16px; text-align: center; letter-spacing: 1px; }
.promo-a .pk-head .m { width: 70px; text-align: center; font-size: 32px; font-weight: 900; color: var(--pa-main); background: #fff; flex-shrink: 0; font-family: Georgia, serif; }
.promo-a .pk-head .r { flex: 1; background: #7a8a8a; color: #fff; font-size: 16px; font-weight: 700; padding: 20px 16px; text-align: center; letter-spacing: 1px; }
.promo-a .pk-row { display: flex; align-items: stretch; margin-bottom: 10px; border: 1px solid var(--pa-border); }
.promo-a .pk-row .l { width: 42%; background: var(--pa-gold); color: #fff; padding: 14px 16px; font-size: 14px; line-height: 1.6; display: flex; align-items: center; }
.promo-a .pk-row .c { width: 16%; display: flex; align-items: center; justify-content: center; background: #fff; font-size: 12px; font-weight: 700; color: var(--pa-main); text-align: center; padding: 4px; border-left: 1px solid var(--pa-border); border-right: 1px solid var(--pa-border); }
.promo-a .pk-row .r { width: 42%; background: #f2efe9; color: var(--pa-text); padding: 14px 16px; font-size: 14px; line-height: 1.6; display: flex; align-items: center; }
.promo-a .btn-main { display: inline-block; background: var(--pa-main); color: #fff; padding: 14px 48px; font-size: 16px; font-weight: 700; border: none; cursor: pointer; transition: all var(--transition); text-align: center; margin-top: 20px; letter-spacing: 2px; }
.promo-a .btn-main:hover { background: var(--pa-gold); color: #fff; }
.promo-a .divider { border: none; border-top: 1px solid var(--pa-border); margin: 32px 0 28px; }
.promo-a .block { background: #fff; border: 1px solid var(--pa-border); border-radius: 12px; padding: 28px 26px; margin-bottom: 24px; }
.promo-a .block-title { font-size: 22px; font-weight: 800; color: var(--pa-main); text-align: center; margin-bottom: 6px; font-family: Georgia, serif; letter-spacing: 1px; }
.promo-a .block-sub { text-align: center; font-size: 14px; color: var(--pa-text-light); margin-bottom: 22px; }
.promo-a .steps { display: grid; grid-template-columns: repeat(6,1fr); gap: 16px; margin: 20px 0 10px; }
.promo-a .steps .s { text-align: center; padding: 20px 10px; background: var(--pa-bg-soft); border: 1px solid var(--pa-border); transition: all var(--transition); }
.promo-a .steps .s:hover { border-color: var(--pa-gold); transform: translateY(-2px); }
.promo-a .steps .s .i { font-size: 26px; display: block; margin-bottom: 8px; color: var(--pa-gold); }
.promo-a .steps .s .t { font-size: 14px; font-weight: 700; color: var(--pa-main); }
.promo-a .steps .s .d { font-size: 12px; color: var(--pa-text-light); margin-top: 4px; line-height: 1.5; }
.promo-a .teacher-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 20px 0 10px; }
.promo-a .teacher-img { background: var(--pa-bg-soft); border: 1px solid var(--pa-border); min-height: 200px; display: flex; align-items: center; justify-content: center; color: var(--pa-text-light); font-size: 14px; }
.promo-a .teacher-desc { border: 1px solid var(--pa-border); padding: 24px 26px; background: #fff; }
.promo-a .teacher-desc h4 { font-size: 17px; font-weight: 700; margin-bottom: 14px; color: var(--pa-main); text-align: center; letter-spacing: 1px; }
.promo-a .check-item { font-size: 14px; padding: 8px 0; color: var(--pa-text); border-bottom: 1px solid var(--pa-border); }
.promo-a .check-item:last-child { border-bottom: none; }
.promo-a .check-item::before { content: "◆"; color: var(--pa-gold); font-weight: 700; margin-right: 10px; font-size: 12px; }
.promo-a .class-table { width: 100%; border-collapse: collapse; border: 1px solid var(--pa-border); min-width: 500px; }
.promo-a .class-table th, .promo-a .class-table td { border: 1px solid var(--pa-border); padding: 14px 12px; text-align: center; font-size: 14px; }
.promo-a .class-table th { background: var(--pa-main); color: #fff; font-weight: 700; letter-spacing: 1px; }
.promo-a .class-table tr:nth-child(even) td { background: #faf8f5; }
.promo-a .class-table tr:nth-child(odd) td { background: #fff; }
.promo-a .campus-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px,1fr)); gap: 8px; margin: 16px 0 10px; }
.promo-a .campus-item { background: var(--pa-bg-soft); border: 1px solid var(--pa-border); padding: 10px 6px; text-align: center; font-size: 13px; font-weight: 500; color: var(--pa-text); transition: all var(--transition); }
.promo-a .campus-item:hover { border-color: var(--pa-gold); background: #fdf8ef; }
.promo-a .env-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); gap: 12px; margin: 16px 0 6px; }
.promo-a .env-item { background: var(--pa-bg-soft); border: 1px solid var(--pa-border); height: 120px; display: flex; align-items: center; justify-content: center; color: var(--pa-text-light); font-size: 13px; transition: var(--transition); }
.promo-a .env-item:hover { border-color: var(--pa-gold); }
.promo-a .form-box { background: #fdf8ef; border: 1px solid var(--pa-gold); border-radius: 12px; padding: 28px 26px; margin: 24px 0 12px; }
.promo-a .form-box .title { font-size: 22px; font-weight: 800; color: var(--pa-main); text-align: center; margin-bottom: 4px; font-family: Georgia, serif; letter-spacing: 1px; }
.promo-a .form-box .title span { color: var(--pa-gold); }
.promo-a .form-box .sub-title { text-align: center; font-size: 14px; color: var(--pa-text-light); margin-bottom: 20px; }
.promo-a .form-box .privacy { text-align: center; font-size: 12px; color: var(--pa-text-light); margin-top: 14px; opacity: .8; }
.promo-a .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.promo-a .form-grid .form-group { display: flex; flex-direction: column; }
.promo-a .form-grid label { font-size: 13px; font-weight: 600; color: var(--pa-main); margin-bottom: 6px; letter-spacing: .5px; }
.promo-a .form-grid label .required { color: var(--edu-red); margin-left: 2px; }
.promo-a .form-grid input, .promo-a .form-grid select { width: 100%; padding: 12px 14px; border: 1px solid var(--pa-border); font-size: 15px; font-family: var(--font); background: #fff; color: var(--pa-text); outline: none; }
.promo-a .form-grid input:focus, .promo-a .form-grid select:focus { border-color: var(--pa-gold); box-shadow: 0 0 0 2px rgba(201,169,110,.15); }
.promo-a .form-grid .btn-submit { grid-column: 1/-1; background: var(--pa-main); color: #fff; border: none; padding: 16px 32px; font-size: 17px; font-weight: 700; cursor: pointer; transition: all var(--transition); width: 100%; letter-spacing: 2px; }
.promo-a .form-grid .btn-submit:hover { background: var(--pa-gold); }
.promo-a .form-grid .form-error { display: none; color: #b84a4a; font-size: 12px; margin-top: 4px; }
.promo-a .form-grid .form-group.has-error input, .promo-a .form-grid .form-group.has-error select { border-color: #b84a4a; background: #fff6f5; }
.promo-a .form-grid .form-group.has-error .form-error { display: block; }
.promo-a .btn-center { display: flex; justify-content: center; }
.promo-a .btn-line { display: inline-block; background: var(--pa-main); color: #fff; padding: 14px 44px; font-size: 16px; font-weight: 700; border: none; cursor: pointer; transition: all var(--transition); text-align: center; margin-top: 18px; letter-spacing: 1.5px; }
.promo-a .btn-line:hover { background: var(--pa-gold); color: #fff; }
.promo-a .btn-line.phone { background: var(--pa-main); }
.promo-a .btn-line.phone:hover { background: var(--pa-gold); }

/* ---------- 风格 B：清新白蓝 ---------- */
.promo-b {
    --pb-main: #2563eb; --pb-main-dark: #1d4ed8; --pb-main-light: #eff6ff;
    --pb-bg: #f8fafc; --pb-text: #0f172a; --pb-text-light: #475569; --pb-border: #e2e8f0;
}
.promo-b .promo-carousel { border-radius: 16px; aspect-ratio: 21/7; margin-bottom: 28px; }
.promo-b .promo-carousel .nav-btn { border: none; background: rgba(37,99,235,.55); }
.promo-b .promo-carousel .nav-btn:hover { background: var(--pb-main); }
.promo-b .promo-carousel .dots .dot { background: rgba(255,255,255,.5); }
.promo-b .promo-carousel .dots .dot.active { background: var(--pb-main-light); }
.promo-b .hero-card { background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%); border: 1px solid #bfdbfe; border-radius: 16px; padding: 28px 32px; margin-bottom: 24px; box-shadow: 0 10px 30px rgba(37,99,235,.08); }
.promo-b .hero-card .badge { display: inline-block; background: var(--pb-main-light); color: var(--pb-main); font-size: 12px; font-weight: 700; padding: 5px 14px; border-radius: 100px; letter-spacing: .5px; margin-bottom: 12px; }
.promo-b .hero-card h3 { font-size: 22px; font-weight: 800; color: var(--pb-text); margin-bottom: 14px; letter-spacing: -.3px; }
.promo-b .hero-card .tags { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-bottom: 18px; }
.promo-b .hero-card .tags .t { background: #fff; border: 1px solid var(--pb-border); border-radius: 100px; padding: 5px 16px; font-size: 13px; color: var(--pb-text-light); }
.promo-b .hero-card .stats { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px dashed #cbd5e1; padding-top: 20px; }
.promo-b .hero-card .stats .left { display: flex; flex-wrap: wrap; gap: 24px 44px; }
.promo-b .hero-card .stats .item { display: flex; flex-direction: column; }
.promo-b .hero-card .stats .item .num { font-size: 28px; font-weight: 900; color: var(--pb-main); line-height: 1.2; letter-spacing: -1px; }
.promo-b .hero-card .stats .item .label { font-size: 13px; color: var(--pb-text-light); }
.promo-b .hero-card .stats .btn { display: inline-block; background: var(--pb-main); color: #fff; padding: 12px 32px; border-radius: 100px; font-weight: 700; font-size: 15px; cursor: pointer; transition: all var(--transition); text-align: center; }
.promo-b .hero-card .stats .btn:hover { background: var(--pb-main-dark); color: #fff; box-shadow: 0 8px 20px rgba(37,99,235,.25); }
.promo-b .hero-card .stats .phone { font-size: 13px; color: var(--pb-text-light); }
.promo-b .hero-card .stats .phone strong { color: var(--pb-text); }
.promo-b .slogan { font-size: 26px; font-weight: 800; color: var(--pb-text); text-align: center; line-height: 1.35; margin-bottom: 6px; letter-spacing: -.5px; }
.promo-b .slogan-sub { font-size: 15px; color: var(--pb-text-light); text-align: center; margin-bottom: 26px; }
.promo-b .pk-head { display: flex; align-items: stretch; margin-bottom: 20px; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 16px rgba(15,23,42,.06); }
.promo-b .pk-head .l { flex: 1; background: linear-gradient(135deg, #2563eb, #3b82f6); color: #fff; font-size: 16px; font-weight: 700; padding: 20px 16px; text-align: center; }
.promo-b .pk-head .m { width: 72px; text-align: center; font-size: 26px; font-weight: 900; color: #fff; background: #475569; display: grid; place-items: center; flex-shrink: 0; letter-spacing: 1px; }
.promo-b .pk-head .r { flex: 1; background: #f1f5f9; color: var(--pb-text-light); font-size: 16px; font-weight: 700; padding: 20px 16px; text-align: center; }
.promo-b .pk-row { display: flex; align-items: stretch; margin-bottom: 10px; background: #fff; border: 1px solid var(--pb-border); border-radius: 12px; overflow: hidden; }
.promo-b .pk-row .l { width: 42%; background: var(--pb-main-light); color: var(--pb-main); padding: 14px 16px; font-size: 14px; line-height: 1.6; display: flex; align-items: center; font-weight: 500; }
.promo-b .pk-row .c { width: 16%; display: flex; align-items: center; justify-content: center; background: #fff; font-size: 12px; font-weight: 700; color: var(--pb-text-light); text-align: center; padding: 4px; border-left: 1px solid var(--pb-border); border-right: 1px solid var(--pb-border); }
.promo-b .pk-row .r { width: 42%; background: #fff; color: var(--pb-text-light); padding: 14px 16px; font-size: 14px; line-height: 1.6; display: flex; align-items: center; }
.promo-b .divider { border: none; border-top: 1px dashed var(--pb-border); margin: 28px 0 24px; }
.promo-b .block { background: #fff; border: 1px solid var(--pb-border); border-radius: 16px; padding: 26px 24px; margin-bottom: 20px; box-shadow: 0 4px 16px rgba(15,23,42,.04); }
.promo-b .block-title { font-size: 19px; font-weight: 800; color: var(--pb-text); text-align: center; margin-bottom: 4px; letter-spacing: -.3px; }
.promo-b .block-sub { text-align: center; font-size: 14px; color: var(--pb-text-light); margin-bottom: 20px; }
.promo-b .steps { display: grid; grid-template-columns: repeat(6,1fr); gap: 12px; margin: 16px 0 8px; }
.promo-b .steps .s { text-align: center; padding: 16px 8px; background: var(--pb-bg); border-radius: 12px; transition: all var(--transition); }
.promo-b .steps .s:hover { background: var(--pb-main-light); transform: translateY(-2px); }
.promo-b .steps .s .i { font-size: 24px; display: block; margin-bottom: 6px; }
.promo-b .steps .s .t { font-size: 13px; font-weight: 700; color: var(--pb-text); }
.promo-b .steps .s .d { font-size: 11px; color: var(--pb-text-light); margin-top: 4px; line-height: 1.5; }
.promo-b .teacher-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 16px 0 8px; }
.promo-b .teacher-img { background: var(--pb-bg); border-radius: 12px; min-height: 190px; display: flex; align-items: center; justify-content: center; color: var(--pb-text-light); font-size: 14px; background-image: linear-gradient(135deg, #e0e7ff, #eff6ff); }
.promo-b .teacher-desc { border: 1px solid var(--pb-border); border-radius: 12px; padding: 20px 22px; background: #fff; }
.promo-b .teacher-desc h4 { font-size: 16px; font-weight: 700; margin-bottom: 12px; color: var(--pb-text); text-align: center; }
.promo-b .check-item { font-size: 14px; padding: 6px 0; color: var(--pb-text-light); border-bottom: 1px solid var(--pb-border); }
.promo-b .check-item:last-child { border-bottom: none; }
.promo-b .check-item::before { content: "✓"; color: var(--pb-main); font-weight: 700; margin-right: 10px; }
.promo-b .class-table { width: 100%; border-collapse: collapse; min-width: 500px; border: 1px solid var(--pb-border); border-radius: 12px; overflow: hidden; }
.promo-b .class-table th, .promo-b .class-table td { border: 1px solid var(--pb-border); padding: 12px 10px; text-align: center; font-size: 14px; }
.promo-b .class-table th { background: var(--pb-main-light); color: var(--pb-main); font-weight: 700; }
.promo-b .class-table tr:nth-child(even) td { background: #fafbfd; }
.promo-b .class-table tr:nth-child(odd) td { background: #fff; }
.promo-b .campus-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px,1fr)); gap: 8px; margin: 14px 0 8px; }
.promo-b .campus-item { background: var(--pb-bg); border-radius: 8px; padding: 10px 6px; text-align: center; font-size: 13px; font-weight: 500; color: var(--pb-text-light); transition: all var(--transition); }
.promo-b .campus-item:hover { background: var(--pb-main-light); color: var(--pb-main); }
.promo-b .env-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); gap: 12px; margin: 14px 0 6px; }
.promo-b .env-item { background: var(--pb-bg); border-radius: 12px; height: 110px; display: flex; align-items: center; justify-content: center; color: var(--pb-text-light); font-size: 13px; transition: all var(--transition); }
.promo-b .env-item:hover { background: var(--pb-main-light); }
.promo-b .form-box { background: #fff; border: 2px solid #bfdbfe; border-radius: 16px; padding: 24px 22px; margin: 20px 0 12px; box-shadow: 0 10px 30px rgba(37,99,235,.08); }
.promo-b .form-box .title { font-size: 19px; font-weight: 800; color: var(--pb-text); text-align: center; margin-bottom: 4px; }
.promo-b .form-box .title span { color: var(--pb-main); }
.promo-b .form-box .sub-title { text-align: center; font-size: 14px; color: var(--pb-text-light); margin-bottom: 18px; }
.promo-b .form-box .privacy { text-align: center; font-size: 12px; color: var(--pb-text-light); margin-top: 12px; opacity: .8; }
.promo-b .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.promo-b .form-grid .form-group { display: flex; flex-direction: column; }
.promo-b .form-grid label { font-size: 13px; font-weight: 600; color: var(--pb-text); margin-bottom: 4px; }
.promo-b .form-grid label .required { color: var(--edu-red); margin-left: 2px; }
.promo-b .form-grid input, .promo-b .form-grid select { width: 100%; padding: 10px 14px; border: 1px solid var(--pb-border); border-radius: 10px; font-size: 15px; font-family: var(--font); background: var(--pb-bg); color: var(--pb-text); outline: none; }
.promo-b .form-grid input:focus, .promo-b .form-grid select:focus { border-color: var(--pb-main); background: #fff; box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.promo-b .form-grid .btn-submit { grid-column: 1/-1; background: var(--pb-main); color: #fff; border: none; padding: 14px 32px; border-radius: 100px; font-size: 16px; font-weight: 700; cursor: pointer; transition: all var(--transition); width: 100%; letter-spacing: 1px; }
.promo-b .form-grid .btn-submit:hover { background: var(--pb-main-dark); box-shadow: 0 8px 20px rgba(37,99,235,.3); }
.promo-b .form-grid .form-error { display: none; color: #dc2626; font-size: 12px; margin-top: 4px; }
.promo-b .form-grid .form-group.has-error input, .promo-b .form-grid .form-group.has-error select { border-color: #dc2626; background: #fef2f2; }
.promo-b .form-grid .form-group.has-error .form-error { display: block; }
.promo-b .btn-center { display: flex; justify-content: center; }
.promo-b .btn-line { display: inline-block; background: var(--pb-main); color: #fff; padding: 12px 40px; border-radius: 100px; font-size: 15px; font-weight: 700; border: none; cursor: pointer; transition: all var(--transition); text-align: center; margin-top: 16px; }
.promo-b .btn-line:hover { background: var(--pb-main-dark); color: #fff; box-shadow: 0 8px 20px rgba(37,99,235,.25); }

/* ---------- 风格 C：暖橙活力 ---------- */
.promo-c {
    --pc-main: #ea580c; --pc-main-dark: #c2410c; --pc-warm: #f59e0b;
    --pc-bg: #fffbeb; --pc-text: #422006; --pc-text-light: #78350f; --pc-border: #fed7aa;
}
.promo-c .promo-carousel { border-radius: 20px; aspect-ratio: 21/7; margin-bottom: 26px; box-shadow: 0 12px 32px rgba(234,88,12,.15); }
.promo-c .promo-carousel .nav-btn { background: rgba(234,88,12,.55); border-radius: 50%; }
.promo-c .promo-carousel .nav-btn:hover { background: var(--pc-main); }
.promo-c .promo-carousel .dots .dot { background: rgba(255,255,255,.5); }
.promo-c .promo-carousel .dots .dot.active { background: var(--pc-warm); }
.promo-c .hero-card { background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%); border: 1px solid var(--pc-border); border-radius: 20px; padding: 30px 32px; margin-bottom: 26px; box-shadow: 0 10px 30px rgba(234,88,12,.08); position: relative; overflow: hidden; }
.promo-c .hero-card::after { content: ''; position: absolute; width: 200px; height: 200px; border-radius: 50%; background: radial-gradient(circle, rgba(245,158,11,.15), transparent 70%); right: -60px; top: -60px; }
.promo-c .hero-card .badge { display: inline-block; background: var(--pc-main); color: #fff; font-size: 12px; font-weight: 700; padding: 5px 16px; border-radius: 100px; letter-spacing: 1px; margin-bottom: 12px; position: relative; z-index: 2; }
.promo-c .hero-card h3 { font-size: 24px; font-weight: 900; color: var(--pc-text); margin-bottom: 14px; letter-spacing: -.5px; position: relative; z-index: 2; }
.promo-c .hero-card .tags { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-bottom: 18px; position: relative; z-index: 2; }
.promo-c .hero-card .tags .t { background: #fff; border: 1px solid var(--pc-border); border-radius: 100px; padding: 5px 16px; font-size: 13px; color: var(--pc-text-light); font-weight: 500; }
.promo-c .hero-card .stats { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; border-top: 2px dashed rgba(234,88,12,.2); padding-top: 20px; position: relative; z-index: 2; }
.promo-c .hero-card .stats .left { display: flex; flex-wrap: wrap; gap: 24px 44px; }
.promo-c .hero-card .stats .item { display: flex; flex-direction: column; }
.promo-c .hero-card .stats .item .num { font-size: 30px; font-weight: 900; color: var(--pc-main); line-height: 1.2; letter-spacing: -1px; }
.promo-c .hero-card .stats .item .label { font-size: 13px; color: var(--pc-text-light); }
.promo-c .hero-card .stats .btn { display: inline-block; background: linear-gradient(135deg, #f97316, #ea580c); color: #fff; padding: 13px 34px; border-radius: 100px; font-weight: 700; font-size: 15px; cursor: pointer; transition: all var(--transition); text-align: center; box-shadow: 0 6px 16px rgba(234,88,12,.25); }
.promo-c .hero-card .stats .btn:hover { background: linear-gradient(135deg, #ea580c, #c2410c); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(234,88,12,.35); }
.promo-c .hero-card .stats .phone { font-size: 13px; color: var(--pc-text-light); }
.promo-c .hero-card .stats .phone strong { color: var(--pc-text); }
.promo-c .slogan { font-size: 28px; font-weight: 900; color: var(--pc-main); text-align: center; line-height: 1.3; margin-bottom: 6px; letter-spacing: -.5px; }
.promo-c .slogan-sub { font-size: 15px; color: var(--pc-text-light); text-align: center; margin-bottom: 26px; font-weight: 500; }
.promo-c .pk-head { display: flex; align-items: stretch; margin-bottom: 20px; border-radius: 16px; overflow: hidden; box-shadow: 0 6px 20px rgba(234,88,12,.1); }
.promo-c .pk-head .l { flex: 1; background: linear-gradient(135deg, #f59e0b, #ea580c); color: #fff; font-size: 16px; font-weight: 800; padding: 22px 16px; text-align: center; letter-spacing: 1px; }
.promo-c .pk-head .m { width: 76px; text-align: center; font-size: 26px; font-weight: 900; color: #fff; background: #78350f; display: grid; place-items: center; flex-shrink: 0; letter-spacing: 1px; }
.promo-c .pk-head .r { flex: 1; background: #fef3c7; color: #78350f; font-size: 16px; font-weight: 800; padding: 22px 16px; text-align: center; }
.promo-c .pk-row { display: flex; align-items: stretch; margin-bottom: 12px; background: #fff; border: 1px solid var(--pc-border); border-radius: 14px; overflow: hidden; }
.promo-c .pk-row .l { width: 42%; background: linear-gradient(135deg, #fef3c7, #ffedd5); color: #9a3412; padding: 14px 16px; font-size: 14px; line-height: 1.6; display: flex; align-items: center; font-weight: 600; }
.promo-c .pk-row .c { width: 16%; display: flex; align-items: center; justify-content: center; background: #fff; font-size: 12px; font-weight: 800; color: var(--pc-main); text-align: center; padding: 4px; border-left: 1px solid var(--pc-border); border-right: 1px solid var(--pc-border); }
.promo-c .pk-row .r { width: 42%; background: #fff; color: var(--pc-text-light); padding: 14px 16px; font-size: 14px; line-height: 1.6; display: flex; align-items: center; }
.promo-c .divider { border: none; border-top: 2px dashed var(--pc-border); margin: 30px 0 26px; }
.promo-c .block { background: #fff; border: 1px solid var(--pc-border); border-radius: 20px; padding: 28px 26px; margin-bottom: 22px; box-shadow: 0 6px 20px rgba(234,88,12,.06); }
.promo-c .block-title { font-size: 21px; font-weight: 900; color: var(--pc-main); text-align: center; margin-bottom: 6px; letter-spacing: -.3px; }
.promo-c .block-sub { text-align: center; font-size: 14px; color: var(--pc-text-light); margin-bottom: 22px; font-weight: 500; }
.promo-c .steps { display: grid; grid-template-columns: repeat(6,1fr); gap: 14px; margin: 18px 0 10px; }
.promo-c .steps .s { text-align: center; padding: 18px 10px; background: var(--pc-bg); border-radius: 14px; border: 1px solid transparent; transition: all var(--transition); }
.promo-c .steps .s:hover { border-color: var(--pc-border); background: #fff; transform: translateY(-3px); box-shadow: 0 8px 20px rgba(234,88,12,.1); }
.promo-c .steps .s .i { font-size: 26px; display: block; margin-bottom: 8px; }
.promo-c .steps .s .t { font-size: 14px; font-weight: 800; color: var(--pc-text); }
.promo-c .steps .s .d { font-size: 12px; color: var(--pc-text-light); margin-top: 4px; line-height: 1.5; }
.promo-c .teacher-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin: 18px 0 10px; }
.promo-c .teacher-img { background: linear-gradient(135deg, #fef3c7, #ffedd5); border-radius: 16px; min-height: 200px; display: flex; align-items: center; justify-content: center; color: var(--pc-text-light); font-size: 14px; }
.promo-c .teacher-desc { border: 1px solid var(--pc-border); border-radius: 16px; padding: 22px 24px; background: var(--pc-bg); }
.promo-c .teacher-desc h4 { font-size: 17px; font-weight: 800; margin-bottom: 14px; color: var(--pc-text); text-align: center; }
.promo-c .check-item { font-size: 14px; padding: 8px 0; color: var(--pc-text); border-bottom: 1px solid rgba(234,88,12,.15); }
.promo-c .check-item:last-child { border-bottom: none; }
.promo-c .check-item::before { content: "★"; color: var(--pc-warm); font-weight: 700; margin-right: 10px; }
.promo-c .class-table { width: 100%; border-collapse: collapse; min-width: 500px; border: 2px solid var(--pc-main); border-radius: 12px; overflow: hidden; }
.promo-c .class-table th, .promo-c .class-table td { border: 1px solid var(--pc-border); padding: 14px 12px; text-align: center; font-size: 14px; }
.promo-c .class-table th { background: var(--pc-main); color: #fff; font-weight: 800; letter-spacing: 1px; }
.promo-c .class-table tr:nth-child(even) td { background: var(--pc-bg); }
.promo-c .class-table tr:nth-child(odd) td { background: #fff; }
.promo-c .campus-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px,1fr)); gap: 10px; margin: 16px 0 10px; }
.promo-c .campus-item { background: var(--pc-bg); border: 1px solid var(--pc-border); border-radius: 12px; padding: 12px 6px; text-align: center; font-size: 13px; font-weight: 600; color: var(--pc-text); transition: all var(--transition); }
.promo-c .campus-item:hover { background: var(--pc-main); color: #fff; border-color: var(--pc-main); transform: translateY(-2px); }
.promo-c .env-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); gap: 12px; margin: 14px 0 6px; }
.promo-c .env-item { background: linear-gradient(135deg, #fef3c7, #ffedd5); border-radius: 14px; height: 120px; display: flex; align-items: center; justify-content: center; color: var(--pc-text-light); font-size: 13px; transition: all var(--transition); }
.promo-c .env-item:hover { transform: scale(1.02); }
.promo-c .form-box { background: linear-gradient(135deg, #fff7ed, #ffedd5); border: 2px solid var(--pc-main); border-radius: 20px; padding: 28px 24px; margin: 24px 0 12px; box-shadow: 0 10px 30px rgba(234,88,12,.12); }
.promo-c .form-box .title { font-size: 22px; font-weight: 900; color: var(--pc-text); text-align: center; margin-bottom: 4px; }
.promo-c .form-box .title span { color: var(--pc-main); }
.promo-c .form-box .sub-title { text-align: center; font-size: 14px; color: var(--pc-text-light); margin-bottom: 20px; font-weight: 500; }
.promo-c .form-box .privacy { text-align: center; font-size: 12px; color: var(--pc-text-light); margin-top: 14px; opacity: .8; }
.promo-c .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.promo-c .form-grid .form-group { display: flex; flex-direction: column; }
.promo-c .form-grid label { font-size: 13px; font-weight: 700; color: var(--pc-text); margin-bottom: 6px; }
.promo-c .form-grid label .required { color: var(--pc-main); margin-left: 2px; }
.promo-c .form-grid input, .promo-c .form-grid select { width: 100%; padding: 12px 14px; border: 1px solid var(--pc-border); border-radius: 12px; font-size: 15px; font-family: var(--font); background: #fff; color: var(--pc-text); outline: none; }
.promo-c .form-grid input:focus, .promo-c .form-grid select:focus { border-color: var(--pc-main); box-shadow: 0 0 0 3px rgba(234,88,12,.1); }
.promo-c .form-grid .btn-submit { grid-column: 1/-1; background: linear-gradient(135deg, #f97316, #ea580c); color: #fff; border: none; padding: 16px 32px; border-radius: 100px; font-size: 17px; font-weight: 800; cursor: pointer; transition: all var(--transition); width: 100%; letter-spacing: 1px; box-shadow: 0 6px 16px rgba(234,88,12,.25); }
.promo-c .form-grid .btn-submit:hover { background: linear-gradient(135deg, #ea580c, #c2410c); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(234,88,12,.35); }
.promo-c .form-grid .form-error { display: none; color: #b84a4a; font-size: 12px; margin-top: 4px; }
.promo-c .form-grid .form-group.has-error input, .promo-c .form-grid .form-group.has-error select { border-color: #b84a4a; background: #fff6f5; }
.promo-c .form-grid .form-group.has-error .form-error { display: block; }
.promo-c .btn-center { display: flex; justify-content: center; }
.promo-c .btn-line { display: inline-block; background: linear-gradient(135deg, #f97316, #ea580c); color: #fff; padding: 14px 46px; border-radius: 100px; font-size: 16px; font-weight: 800; border: none; cursor: pointer; transition: all var(--transition); text-align: center; margin-top: 18px; letter-spacing: 1px; box-shadow: 0 6px 16px rgba(234,88,12,.25); }
.promo-c .btn-line:hover { background: linear-gradient(135deg, #ea580c, #c2410c); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(234,88,12,.35); }
.promo-c .btn-line.phone { background: var(--pc-main); }
.promo-c .btn-line.phone:hover { background: var(--pc-main-dark); }

/* ===== 通用 ===== */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.form-group .form-error { display: none; }
.form-group.has-error .form-error { display: block; }

/* ===== 相关阅读 ===== */
.related { margin-top: 32px; padding-top: 24px; border-top: 2px solid var(--border); }
.related h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.related-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.related-list .rel-item { background: var(--bg-card); border-radius: var(--radius); padding: 14px 18px; border: 1px solid var(--border); transition: all var(--transition); cursor: pointer; }
.related-list .rel-item:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }
.related-list .rel-item h4 { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.related-list .rel-item .rel-meta { font-size: 12px; color: var(--text-light); }

/* ===== 关于我们 / 预约页 ===== */
.about-hero { background: var(--bg-card); border-radius: var(--radius-lg); padding: 48px 48px 40px; margin: 24px 0 32px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.about-hero h1 { font-size: 34px; font-weight: 800; color: var(--text); margin-bottom: 12px; }
.about-hero p { font-size: 17px; color: var(--text-light); max-width: 700px; line-height: 1.7; }
.about-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; margin-bottom: 32px; }
.about-card { background: var(--bg-card); border-radius: var(--radius); padding: 28px 24px; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all var(--transition); text-align: center; }
.about-card:hover { transform: translateY(-4px); border-color: var(--primary-light); }
.about-card .icon { font-size: 40px; margin-bottom: 12px; }
.about-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.about-card p { font-size: 14px; color: var(--text-light); line-height: 1.6; }
.contact-info { background: var(--bg-card); border-radius: var(--radius); padding: 28px 32px; border: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; }
.contact-info .item { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text); }
.contact-info .item .label { color: var(--text-light); font-weight: 500; }
.booking-wrapper { background: var(--bg-card); border-radius: var(--radius-lg); padding: 48px 52px; margin: 24px 0 32px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.booking-wrapper h1 { font-size: 32px; font-weight: 800; color: var(--text); margin-bottom: 8px; }
.booking-wrapper .sub { color: var(--text-light); font-size: 16px; margin-bottom: 28px; }
.booking-form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 32px; }
.booking-form .full { grid-column: 1/-1; }
.booking-form label { font-weight: 600; font-size: 14px; color: var(--text); display: block; margin-bottom: 6px; }
.booking-form label .required { color: #e74c3c; margin-left: 2px; }
.booking-form input, .booking-form select, .booking-form textarea { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 15px; font-family: var(--font); background: var(--bg); color: var(--text); outline: none; }
.booking-form input:focus, .booking-form select:focus, .booking-form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,75,140,.1); }
.booking-form textarea { resize: vertical; min-height: 100px; }
.booking-form .btn-submit { grid-column: 1/-1; background: var(--primary); color: #fff; border: none; padding: 14px 32px; border-radius: 40px; font-size: 17px; font-weight: 700; cursor: pointer; transition: all var(--transition); justify-self: start; }
.booking-form .btn-submit:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(26,75,140,.25); }

/* ===== 页脚 ===== */
.footer { margin-top: 48px; padding: 32px 0 20px; border-top: 1px solid var(--border); background: var(--header-bg); }
.footer-inner { display: flex; flex-direction: column; gap: 24px; }
.footer .footer-top { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 20px; }
.footer .footer-brand .logo { font-size: 22px; font-weight: 800; color: var(--primary); margin-bottom: 6px; }
.footer .footer-brand p { font-size: 14px; color: var(--text-light); }
.footer .footer-links { display: flex; flex-wrap: wrap; gap: 16px 32px; }
.footer .footer-links a { font-size: 14px; color: var(--text-light); }
.footer .footer-links a:hover { color: var(--primary); }
.friend-links { padding: 20px 0 16px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.friend-links .fl-title { font-size: 14px; font-weight: 600; color: var(--text-light); margin-bottom: 10px; }
.friend-links .fl-list { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.friend-links .fl-list a { font-size: 13px; color: var(--text-light); }
.friend-links .fl-list a:hover { color: var(--primary); }
.footer .footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 14px; color: var(--text-light); padding-top: 8px; }
.footer .footer-bottom .icp { color: var(--text-light); font-size: 13px; }
.footer .footer-bottom .icp:hover { color: var(--primary); text-decoration: underline; }

/* ===== 底部固定导航 ===== */
.bottom-nav {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 9999;
    background: var(--header-bg); border-top: 1px solid var(--border);
    box-shadow: 0 -4px 20px rgba(0,0,0,.06);
    display: flex; justify-content: space-around; align-items: center;
    height: var(--bottom-nav-height); padding: 0 4px;
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    box-sizing: border-box; overflow: hidden;
}
.bottom-nav .nav-item {
    flex: 1 1 0; min-width: 0;
    display: flex; flex-direction: column; align-items: center;
    justify-content: center; padding: 6px 2px; cursor: pointer;
    transition: all var(--transition); color: var(--text-light);
    border: none; background: transparent; font-family: var(--font);
    font-size: 11px; gap: 2px; text-decoration: none; overflow: hidden;
}
.bottom-nav .nav-item .icon { font-size: 22px; line-height: 1.2; flex-shrink: 0; }
.bottom-nav .nav-item .label { font-size: 11px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; padding: 0 2px; }
.bottom-nav .nav-item:hover, .bottom-nav .nav-item.active { color: var(--primary); }
.bottom-nav .nav-item:active { transform: scale(.94); }

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,.5);
    backdrop-filter: blur(4px); z-index: 99999; display: none;
    align-items: center; justify-content: center; animation: fadeIn .3s ease;
}
.modal-overlay.open { display: flex; }
@keyframes fadeIn { 0%{opacity:0} 100%{opacity:1} }
.modal-box { background: var(--bg-card); border-radius: var(--radius-lg); max-width: 500px; width: 90%; padding: 36px 40px 32px; box-shadow: 0 24px 64px rgba(0,0,0,.2); position: relative; animation: slideUp .35s ease; }
@keyframes slideUp { 0%{transform:translateY(30px);opacity:0} 100%{transform:translateY(0);opacity:1} }
.modal-box .close-modal { position: absolute; top: 14px; right: 18px; font-size: 28px; cursor: pointer; background: none; border: none; color: var(--text-light); line-height: 1; }
.modal-box .close-modal:hover { color: var(--text); }
.modal-box h2 { font-size: 22px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.modal-box .modal-sub { color: var(--text-light); font-size: 14px; margin-bottom: 20px; }
.modal-box .modal-body { font-size: 15px; color: var(--text); line-height: 1.7; }
.modal-box .modal-body .btn-modal { display: inline-block; margin-top: 12px; background: var(--primary); color: #fff; padding: 10px 28px; border-radius: 30px; font-weight: 600; border: none; cursor: pointer; font-size: 15px; }
.modal-box .modal-body .btn-modal:hover { background: var(--primary-light); }

/* ================================================== */
/* ============ 响应式 ============ */
/* ================================================== */
@media (max-width: 992px) {
    .news-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
    .booking-form { grid-template-columns: 1fr; }
    .booking-form .full { grid-column: 1; }
    .booking-wrapper { padding: 32px 24px; }
    .promo-a .steps, .promo-b .steps, .promo-c .steps { grid-template-columns: repeat(3,1fr); }
}
@media (max-width: 768px) {
    .header-inner { height: 56px; flex-wrap: nowrap; gap: 6px; overflow: hidden; }
    .logo { font-size: 18px; flex-shrink: 1; min-width: 0; overflow: hidden; white-space: nowrap; gap: 4px; }
    .logo .badge { display: none; }
    .header-phone { font-size: 12px; margin-right: 4px; margin-left: auto; flex-shrink: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; gap: 3px; }
    .header-phone .icon { font-size: 14px; flex-shrink: 0; }
    .menu-toggle { flex-shrink: 0; padding: 4px 6px; font-size: 22px; }
    .nav {
        display: none; flex-direction: column; position: absolute;
        top: 56px; left: 0; right: 0; background: var(--header-bg);
        padding: 16px 20px 24px; border-bottom: 1px solid var(--border);
        box-shadow: var(--header-shadow); gap: 12px; align-items: stretch;
        box-sizing: border-box;
    }
    .nav.open { display: flex; }
    .nav a { padding: 8px 0; border-bottom: none; }
    .nav a.btn-nav { text-align: center; }
    .menu-toggle { display: block; }

    .news-grid { grid-template-columns: 1fr; gap: 16px; }
    .section-title h2 { font-size: 19px; }
    .detail-header h1 { font-size: 24px; }
    .tabs .tab-btn { padding: 10px 16px; font-size: 14px; }
    .related-list { grid-template-columns: 1fr 1fr; }
    .about-hero { padding: 28px 20px; }
    .about-hero h1 { font-size: 26px; }
    .about-grid { grid-template-columns: 1fr; }
    .contact-info { flex-direction: column; gap: 16px; }
    .booking-wrapper { padding: 24px 16px; }
    .booking-wrapper h1 { font-size: 26px; }
    .booking-form input, .booking-form select, .booking-form textarea { font-size: 14px; }
    .booking-form .btn-submit { width: 100%; justify-self: stretch; text-align: center; }
    .footer .footer-top { flex-direction: column; align-items: flex-start; }
    .footer .footer-bottom { flex-direction: column; text-align: center; }
    .modal-box { padding: 28px 20px 24px; }

    .promo-a .hero-card, .promo-b .hero-card, .promo-c .hero-card { padding: 22px 18px; }
    .promo-a .hero-card h3, .promo-b .hero-card h3, .promo-c .hero-card h3 { font-size: 20px; }
    .promo-a .hero-card .stats, .promo-b .hero-card .stats, .promo-c .hero-card .stats { flex-direction: column; align-items: stretch; }
    .promo-a .hero-card .stats .left, .promo-b .hero-card .stats .left, .promo-c .hero-card .stats .left { justify-content: center; gap: 12px 24px; }
    .promo-a .hero-card .stats .item .num, .promo-b .hero-card .stats .item .num, .promo-c .hero-card .stats .item .num { font-size: 24px; }
    .promo-a .hero-card .stats .btn, .promo-b .hero-card .stats .btn, .promo-c .hero-card .stats .btn { width: 100%; text-align: center; }
    .promo-a .slogan, .promo-b .slogan, .promo-c .slogan { font-size: 21px; }
    .promo-a .slogan-sub, .promo-b .slogan-sub, .promo-c .slogan-sub { font-size: 14px; }
    .promo-a .pk-head .l, .promo-a .pk-head .r, .promo-b .pk-head .l, .promo-b .pk-head .r, .promo-c .pk-head .l, .promo-c .pk-head .r { font-size: 14px; padding: 16px 10px; }
    .promo-a .pk-head .m, .promo-b .pk-head .m, .promo-c .pk-head .m { font-size: 22px; width: 50px; }
    .promo-a .pk-row .l, .promo-a .pk-row .r, .promo-b .pk-row .l, .promo-b .pk-row .r, .promo-c .pk-row .l, .promo-c .pk-row .r { font-size: 12px; padding: 10px 8px; }
    .promo-a .pk-row .c, .promo-b .pk-row .c, .promo-c .pk-row .c { font-size: 10px; }
    .promo-a .steps, .promo-b .steps, .promo-c .steps { grid-template-columns: repeat(2,1fr); }
    .promo-a .teacher-grid, .promo-b .teacher-grid, .promo-c .teacher-grid { grid-template-columns: 1fr; }
    .promo-a .class-table, .promo-b .class-table, .promo-c .class-table { display: none; }
    .promo-a .form-grid, .promo-b .form-grid, .promo-c .form-grid { grid-template-columns: 1fr; }
    .promo-a .form-grid .btn-submit, .promo-b .form-grid .btn-submit, .promo-c .form-grid .btn-submit { grid-column: 1; }
}
@media (max-width: 480px) {
    .container { padding: 0 12px; }
    .header-inner { padding: 0 12px; }
    .logo { font-size: 16px; gap: 3px; }
    .logo span:not(.badge) { display: none; }
    .header-phone { font-size: 11px; margin-right: 2px; gap: 2px; }
    .header-phone .icon { font-size: 13px; }
    .header-phone a { font-size: 11px; letter-spacing: -0.3px; }
    .menu-toggle { font-size: 20px; padding: 2px 4px; }
    .related-list { grid-template-columns: 1fr; }
    .logo .badge { font-size: 9px; padding: 1px 8px; }
    .promo-a .steps, .promo-b .steps, .promo-c .steps { grid-template-columns: repeat(2,1fr); }
    .promo-a .steps .s, .promo-b .steps .s, .promo-c .steps .s { padding: 12px 6px; }
    .promo-a .campus-grid, .promo-b .campus-grid, .promo-c .campus-grid { grid-template-columns: repeat(3,1fr); gap: 6px; }
    .promo-a .campus-item, .promo-b .campus-item, .promo-c .campus-item { font-size: 12px; padding: 8px 4px; }
    .promo-a .env-grid, .promo-b .env-grid, .promo-c .env-grid { grid-template-columns: 1fr 1fr; }
    :root { --bottom-nav-height: 58px; }
    .bottom-nav { padding: 0 2px; }
    .bottom-nav .nav-item { padding: 4px 0; gap: 1px; }
    .bottom-nav .nav-item .label { font-size: 10px; letter-spacing: -0.2px; }
    .bottom-nav .nav-item .icon { font-size: 19px; }
}
@media (max-width: 360px) {
    .logo { font-size: 15px; }
    .header-phone { font-size: 10px; }
    .header-phone .icon { font-size: 12px; }
    .header-phone a { font-size: 10px; }
    .menu-toggle { font-size: 18px; }
    .bottom-nav .nav-item .label { font-size: 9px; }
    .bottom-nav .nav-item .icon { font-size: 18px; }
}
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }
/* ================================================== */
/* ===== 移动端 Banner 兼容性全局修复 ===== */
/* ================================================== */

/* 1. 全局兜底 */
html, body {
    max-width: 100%;
    overflow-x: hidden;
}

/* 2. 宣传板块所有容器 */
.promo-a, .promo-b, .promo-c {
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

/* 3. 轮播容器：用 padding-top 兼容所有浏览器 */
.promo-carousel {
    position: relative;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
    height: 0;
    padding-top: 33.333%;
}
.promo-carousel .slides {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    transition: transform .6s cubic-bezier(.25,.46,.45,.94);
}
.promo-carousel .slide {
    flex: 0 0 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}
.promo-carousel .slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
/* 支持 aspect-ratio 的浏览器自动用新方案 */
@supports (aspect-ratio: 21/7) {
    .promo-carousel {
        height: auto;
        padding-top: 0;
        aspect-ratio: 21/7;
        min-height: 140px;
    }
    .promo-carousel .slides { position: relative; }
}

/* 4. 卡片宽度保护 */
.hero-card {
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}
.hero-card .tags {
    max-width: 100%;
}
.hero-card .tags .t {
    max-width: 100%;
    word-break: break-word;
}
.hero-card .stats {
    max-width: 100%;
}
.hero-card .stats .left {
    flex: 1 1 auto;
    max-width: 100%;
    min-width: 0;
}
.hero-card .stats .item {
    max-width: 100%;
    min-width: 0;
}
.hero-card .stats .item .num {
    word-break: break-word;
}

/* 5. 移动端进一步收紧 */
@media (max-width: 768px) {
    .promo-carousel {
        padding-top: 40%;
    }
    @supports (aspect-ratio: 21/9) {
        .promo-carousel {
            padding-top: 0;
            aspect-ratio: 21/9;
            min-height: 100px;
        }
    }
    .hero-card {
        padding: 22px 18px;
    }
    .hero-card .stats .left {
        gap: 12px 24px;
        justify-content: center;
    }
    .hero-card .stats .item .num {
        font-size: 24px;
    }
}
@media (max-width: 480px) {
    .promo-carousel {
        padding-top: 45%;
    }
    @supports (aspect-ratio: 21/10) {
        .promo-carousel {
            padding-top: 0;
            aspect-ratio: 21/10;
            min-height: 80px;
        }
    }
    .hero-card {
        padding: 18px 14px;
    }
    .hero-card .stats .item .num {
        font-size: 20px;
    }
    .hero-card .stats .left {
        gap: 8px 16px;
    }
}