/* ===============================
   1. 全局变量 & 基础
   =============================== */
:root {
  --primary:   #5ba05d;   /* 鼠尾草绿（主色） */
  --accent:    #a8c090;   /* 淡薄荷绿（点缀） */
  --bg:        #f7f9f5;   /* 奶油白底 */
  --card:      #ffffff;
  --text:      #4a5444;   /* 暖灰绿字 */
  --shadow:    0 8px 32px rgba(123,160,91,.12);
  --radius:    14px;
  --trans:     .35s cubic-bezier(.4,0,.2,1);
}

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

body {
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  scroll-behavior: smooth;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* ===============================
   2. 毛玻璃导航
   =============================== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.6);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  border-bottom: 1px solid rgba(123,160,91,.15);
  padding: 20px 0;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header #branding h1 {
  font-weight: 600;
  font-size: 1.6rem;
  color: var(--primary);
}

header nav ul {
  display: flex;
  gap: 28px;
  list-style: none;
}

header nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: var(--trans);
  position: relative;
}

header nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--trans);
}

header nav a:hover::after,
header .current a::after {
  width: 100%;
}

/* ===============================
   3. 卡片 & 数字呼吸
   =============================== */
.dashboard-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px 20px;
  box-shadow: var(--shadow);
  flex: 1 1 200px;
  margin: 10px;
  text-align: center;
  transition: transform var(--trans), box-shadow var(--trans);
}

.dashboard-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(123,160,91,.25);
}

.dashboard-card h3 {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 12px;
  letter-spacing: .5px;
}

.dashboard-card .amount {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: breathe 2.5s ease-in-out infinite;
}

@keyframes breathe {
  0%,100% { filter: brightness(1); }
  50%     { filter: brightness(1.08); }
}

/* ===============================
   4. 表格
   =============================== */
table {
  text-align: center;
  width: 100%;
  border-collapse: collapse;
  margin: 40px 0;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

th {
  background: var(--primary);
  color: #fff;
  padding: 16px 20px;
  font-weight: 600;
}

td {
  padding: 14px 20px;
  border-bottom: 1px solid #f0f0f0;
}

tr:last-child td { border-bottom: none; }

tr:hover {
  background: #f3f6f1;
  transition: background var(--trans);
}

/* ===============================
   5. 表单
   =============================== */
form {
  background: var(--card);
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 30px 0;
}

input[type=text],
input[type=number],
input[type=date],
input[type=password],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  margin: 8px 0 20px;
  border: 1px solid #e5e5e5;
  border-radius: var(--radius);
  transition: border-color var(--trans);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  outline: none;
}

input[type=submit] {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  border: none;
  padding: 14px;
  font-size: 1rem;
  color: #fff;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--trans);
}

input[type=submit]:hover {
  filter: brightness(1.08);
  transform: scale(1.02);
}

/* ===============================
   6. 响应式
   =============================== */
@media (max-width: 768px) {
  header .container {
    flex-direction: column;
  }
  header nav ul {
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 12px;
  }
}