/* ========================================================
   Qigong Website – Merged Stylesheet
   Farbschema: Himmelblau / Tianqing (#5B8FA8)
   基于原始代码的网格系统 + 团队代码的蓝色主题
   ======================================================== */

/* --- CSS Variablen --- */
:root {
  /* 主色系：天青蓝 + 淡雅粉 */
  --primary:       #5B8FA8;
  --primary-2:     #7BADC4;
  --primary-dark:  #3E6E85;
  --primary-light: #8FB8CA;
  --primary-bg:    #EDF5F8;
  
  /* 暖色系：粉色 + 蜜桃 */
  --rose:          #D4A0A0;
  --rose-light:    #F0D5D0;
  --rose-bg:       #FDF6F4;
  --peach:         #E8C4B8;
  --peach-light:   #F5E6DF;
  
  /* 点缀色 */
  --accent:        #C8956C;
  --accent-light:  #E8C9AE;
  
  /* 基础色 */
  --bg:            #F7F3EE;
  --bg-light:      #F5FAFC;
  --card:          #ffffff;
  --dark:          #1E3A4A;
  --text:          #2f2f2f;
  --text-light:    #5A7184;
  --muted:         #6a6a6a;
  --line:          #e8e4de;
  --border:        #D4E2EA;
  --white:         #FFFFFF;
  
  /* 阴影 & 圆角 */
  --shadow:        0 10px 30px rgba(0,0,0,0.05);
  --shadow-sm:     0 2px 8px rgba(91,143,168,.06);
  --shadow-md:     0 4px 24px rgba(91,143,168,.10);
  --shadow-lg:     0 8px 40px rgba(91,143,168,.14);
  --shadow-rose:   0 4px 20px rgba(212,160,160,.15);
  --radius:        12px;
  --radius-lg:     20px;
  --transition:    .3s cubic-bezier(.4,0,.2,1);
  --font-sans:     'Segoe UI', system-ui, -apple-system, Arial, sans-serif;
  --font-serif:    'Noto Serif SC', Georgia, serif;
}

/* --- Reset & Base --- */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:80px;}
body{
  margin:0;
  font-family: var(--font-sans);
  background:linear-gradient(180deg, var(--bg) 0%, var(--rose-bg) 50%, var(--bg) 100%);
  background-attachment:fixed;
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing: antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{text-decoration:underline;}
ul{list-style:none;}

/* --- Container --- */
.container{
  max-width:1040px;
  margin:0 auto;
  padding:0 18px;
}

/* ========================================================
   NAVIGATION (原始结构 + 团队样式)
   ======================================================== */
.topbar{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:100;
  backdrop-filter:blur(12px);
  transition:var(--transition);
}
.topbar.scrolled{
  box-shadow:var(--shadow-sm);
  border-bottom-color:var(--border);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:14px;
}

/* 品牌区域 */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-weight:600;
  letter-spacing:0.2px;
}
.brand .logo-img{
  width:32px;
  height:32px;
  border-radius:50%;
  object-fit:cover;
  border:1.5px solid var(--rose-light);
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.brand .logo-img:hover{
  transform:scale(1.08);
  box-shadow:var(--shadow-rose);
}
.brand .name{
  display:flex;
  flex-direction:column;
  line-height:1.1;
}
.brand .name small{
  color:var(--muted);
  font-weight:500;
  font-size:.75rem;
}

/* 导航菜单 */
.menu{
  display:flex;
  gap:18px;
  flex-wrap:wrap;
  justify-content:flex-end;
  align-items:center;
}
.menu a{
  padding:8px 10px;
  border-radius:10px;
  color:#3a3a3a;
  font-weight:600;
  font-size:.9rem;
  transition:var(--transition);
}
.menu a.active, .menu a:hover{
  background:linear-gradient(135deg, rgba(91,143,168,0.10), rgba(212,160,160,0.10));
  color:var(--primary);
  text-decoration:none;
}

/* 汉堡菜单按钮（移动端） */
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding:8px;
}
.nav-toggle span{
  display:block;
  width:24px;height:2px;
  background:var(--dark);
  border-radius:2px;
  transition:var(--transition);
}

/* ========================================================
   HERO (团队蓝色主题渐变)
   ======================================================== */
.hero{
  background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 40%, var(--peach) 100%);
  color:#fff;
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;
  top:-50px;right:-50px;
  width:350px;height:350px;
  background:radial-gradient(circle, rgba(212,160,160,.25) 0%, transparent 70%);
  border-radius:50%;
}
.hero::after{
  content:'';
  position:absolute;
  bottom:-80px;left:-30px;
  width:250px;height:250px;
  background:radial-gradient(circle, rgba(232,196,184,.20) 0%, transparent 70%);
  border-radius:50%;
}
.hero .container{
  position:relative;
  z-index:1;
}
.hero .badge{
  display:inline-block;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,0.18);
  color:#fff;
  font-weight:700;
  font-size:13px;
  margin-bottom:12px;
  backdrop-filter:blur(4px);
}
.hero h1{
  margin:0 0 10px 0;
  font-size:40px;
  letter-spacing:0.2px;
  font-weight:700;
}
.hero p{
  margin:0;
  max-width:720px;
  font-size:18px;
  opacity:0.95;
  line-height:1.7;
}
.hero .cta{
  margin-top:22px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

/* 中文字符点缀 */
.hero-cn{
  font-family:var(--font-serif);
  font-size:1.4rem;
  letter-spacing:.3em;
  opacity:.6;
  margin-bottom:8px;
  display:block;
}

/* ========================================================
   BUTTONS
   ======================================================== */
.btn{
  display:inline-block;
  padding:12px 22px;
  border-radius:12px;
  font-weight:700;
  font-size:.95rem;
  border:1px solid rgba(255,255,255,0.35);
  transition:var(--transition);
  cursor:pointer;
}
.btn.primary{
  background:#fff;
  color:var(--primary);
  border-color:transparent;
}
.btn.primary:hover{
  text-decoration:none;
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
  background:var(--rose-bg);
}
.btn.ghost{
  background:transparent;
  color:#fff;
}
.btn.ghost:hover{text-decoration:none;filter:brightness(0.98);}
.btn-accent{
  background:var(--accent);
  color:#fff;
  border-color:var(--accent);
}
.btn-accent:hover{
  background:#B07E57;
  text-decoration:none;
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}

/* ========================================================
   MAIN CONTENT
   ======================================================== */
.main{
  padding:46px 0;
}

/* --- 12列网格系统（保留原始） --- */
.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:18px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow);
  padding:24px;
  transition:var(--transition);
  position:relative;
}
.card:hover{
  box-shadow:var(--shadow-md);
  border-color:var(--rose-light);
  transform:translateY(-3px);
}
.card h2{
  margin-top:0;
  color:var(--primary);
  font-size:1.25rem;
  position:relative;
  padding-bottom:12px;
}
.card h2::after{
  content:'';
  position:absolute;
  bottom:0;left:0;
  width:40px;height:2px;
  background:linear-gradient(90deg, var(--rose), transparent);
  border-radius:2px;
}
.col-12{grid-column:span 12;}
.col-8{grid-column:span 8;}
.col-6{grid-column:span 6;}
.col-4{grid-column:span 4;}

/* ========================================================
   LIST & CONTENT STYLES
   ======================================================== */
.badge{
  display:inline-block;
  padding:6px 10px;
  border-radius:999px;
  background:rgba(91,143,168,0.12);
  color:var(--primary);
  font-weight:700;
  font-size:13px;
}
.list{
  padding-left:18px;
  margin:10px 0 0 0;
  list-style:disc;
}
.list li{margin:6px 0;line-height:1.7;}

/* ========================================================
   KURS (课程卡片)
   ======================================================== */
.kurs{
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px;
  background:#fff;
  transition:var(--transition);
}
.kurs:hover{
  border-color:var(--rose-light);
  box-shadow:var(--shadow-rose);
  transform:translateY(-2px);
}
.kurs h3{margin:0 0 6px 0;color:var(--dark);font-size:1.05rem;}
.kurs p{margin:0;color:var(--muted);font-size:.9rem;}

/* ========================================================
   TABLE (价格表)
   ======================================================== */
.table{
  width:100%;
  border-collapse:collapse;
  overflow:hidden;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
}
.table th,.table td{
  padding:12px 12px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}
.table th{
  background:linear-gradient(135deg, rgba(91,143,168,0.06) 0%, rgba(212,160,160,0.08) 100%);
  color:var(--dark);
  font-weight:600;
}

/* ========================================================
   HIGHLIGHT BOX
   ======================================================== */
.highlight{
  background:linear-gradient(135deg, var(--rose-bg) 0%, var(--peach-light) 100%);
  border-left:4px solid var(--rose);
  border-radius:0 var(--radius) var(--radius) 0;
  padding:16px 20px;
  margin:16px 0;
  font-size:.95rem;
}

/* ========================================================
   ÜBER MICH - 照片
   ======================================================== */
.profile-photo{
  width:100%;
  max-width:280px;
  border-radius:var(--radius-lg);
  border:3px solid var(--rose-light);
  margin-bottom:20px;
  box-shadow:var(--shadow-rose);
}

/* ========================================================
   KONTAKT - 表单
   ======================================================== */
.contact-form{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:var(--shadow-sm);
}
.form-group{
  margin-bottom:18px;
}
.form-group label{
  display:block;
  font-size:.88rem;
  font-weight:600;
  color:var(--text);
  margin-bottom:6px;
}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;
  padding:12px 16px;
  border:1px solid var(--border);
  border-radius:8px;
  font-size:.95rem;
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg-light);
  transition:var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(91,143,168,.12);
  background:var(--white);
}
.form-group textarea{resize:vertical;min-height:120px;}
.form-success{
  display:none;
  text-align:center;
  padding:40px;
}
.form-success.show{display:block;}
.form-success p{color:var(--primary-dark);font-size:1.1rem;}

/* ========================================================
   FOOTER (团队代码深色页脚 + 原始链接)
   ======================================================== */
.footer{
  margin-top:40px;
  background:linear-gradient(135deg, var(--dark) 0%, #2A4A5A 100%);
  color:rgba(255,255,255,.7);
  padding:40px 0 20px;
}
.footer-content{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:16px;
}
.footer-links{
  display:flex;
  gap:16px;
}
.footer-links a{
  color:rgba(255,255,255,.6);
  font-size:.85rem;
  transition:var(--transition);
}
.footer-links a:hover{color:#fff;text-decoration:none;}
.footer-copy{
  font-size:.85rem;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:16px;
  margin-top:20px;
  text-align:center;
  font-size:.8rem;
}

/* ========================================================
   LEGAL PAGES (Impressum, AGB, Datenschutz)
   ======================================================== */
.legal-page{
  padding:120px 0 80px;
  min-height:70vh;
  background:var(--bg-light);
}
.legal-page .container{
  max-width:780px;
}
.legal-page h1{
  font-size:2rem;
  color:var(--dark);
  margin-bottom:8px;
}
.legal-page .legal-subtitle{
  color:var(--text-light);
  margin-bottom:40px;
}
.legal-page h2{
  font-size:1.2rem;
  color:var(--dark);
  margin:32px 0 12px;
}
.legal-page p,
.legal-page li{
  font-size:.95rem;
  line-height:1.8;
  color:var(--text);
  margin-bottom:10px;
}
.legal-page ul{
  padding-left:20px;
  list-style:disc;
}
.legal-notice{
  background:#FFF8E7;
  border:1px solid #F0DCA0;
  border-radius:var(--radius);
  padding:16px 20px;
  margin:24px 0;
  font-size:.9rem;
  color:#7A5C00;
}
.legal-notice strong{color:#5A4300;}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.9rem;
  color:var(--primary);
  margin-bottom:32px;
}
.back-link:hover{color:var(--primary-dark);}

/* ========================================================
   404 PAGE
   ======================================================== */
.error-page{
  min-height:80vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:60px 20px;
}
.error-page h1{
  font-size:6rem;
  color:var(--primary);
  margin:0;
  font-weight:700;
}
.error-page p{
  font-size:1.2rem;
  color:var(--muted);
  margin:16px 0 24px;
}

/* ========================================================
   ANIMATION (IntersectionObserver目标)
   ======================================================== */
.animate-in{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .6s ease, transform .6s ease;
}
.animate-in.visible{
  opacity:1;
  transform:translateY(0);
}

/* ========================================================
   RESPONSIVE
   ======================================================== */
@media (max-width:860px){
  .col-8,.col-6,.col-4{grid-column:span 12;}
  .hero h1{font-size:32px;}
  
  /* 移动端汉堡菜单 */
  .nav-toggle{display:flex;}
  .menu{
    position:fixed;
    top:64px;left:0;right:0;
    background:#fff;
    flex-direction:column;
    padding:20px;
    gap:4px;
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    transform:translateY(-120%);
    transition:var(--transition);
    opacity:0;
    pointer-events:none;
    z-index:99;
  }
  .menu.open{
    transform:translateY(0);
    opacity:1;
    pointer-events:all;
  }
  .menu a{
    display:block;
    padding:12px 16px;
    text-align:center;
  }
  
  .footer-content{flex-direction:column;text-align:center;}
  .footer-links{justify-content:center;}
  
  .profile-photo{margin:0 auto 20px;display:block;}
}

@media (max-width:480px){
  .hero h1{font-size:28px;}
  .hero .cta{flex-direction:column;}
  .btn{text-align:center;}
}