/* 易学应用 - 统一基础样式 */
* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

:root {
    --bg: #f4efe6;
    --card: #fffdf8;
    --ink: #2b2620;
    --sub: #8a7f6d;
    --line: #e7ddca;
    --red: #c0392b;
    --red-dark: #a4231b;
    --green: #2e7d52;
    --gold: #b8902f;
    --gold-dark: #9a7722;
    --blue: #2980b9;
    --shadow: 0 4px 16px rgba(43, 38, 32, 0.08);
}

html, body {
    font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.6;
    font-size: 15px;
    min-height: 100vh;
}

.wrap { max-width: 480px; margin: 0 auto; padding: 14px 12px 40px; }

/* 通用按钮 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    text-align: center;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: linear-gradient(135deg, var(--red-dark), var(--red)); color: #fff; box-shadow: 0 4px 12px rgba(192,57,43,0.3); }
.btn-gold { background: linear-gradient(135deg, var(--gold-dark), var(--gold)); color: #fff; box-shadow: 0 4px 12px rgba(184,144,47,0.3); }
.btn-outline { background: transparent; border: 1px solid var(--line); color: var(--ink); }
.btn-block { display: block; width: 100%; padding: 14px; font-size: 16px; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 14px; color: var(--ink); font-weight: 600; margin-bottom: 6px; }
.form-control {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--card);
    font-size: 15px;
    color: var(--ink);
    outline: none;
    transition: border-color 0.2s;
    font-family: inherit;
}
.form-control:focus { border-color: var(--red); }

/* 出生时间：日期 + 时间选择器 */
.birth-pick { display: flex; gap: 8px; }
.birth-pick .form-control {
    flex: 1 1 0;
    min-width: 0;
    padding: 11px 8px;
    font-size: 15px;
    text-align: center;
}
.birth-hint { margin-top: 8px; font-size: 12px; line-height: 1.6; color: var(--sub); }

/* 卡片 */
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 14px;
    box-shadow: var(--shadow);
}

/* 消息提示 */
.flash {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 14px;
    font-size: 14px;
}
.flash-error { background: #fdecea; color: var(--red); border: 1px solid #f3c0ba; }
.flash-success { background: #eaf6ef; color: var(--green); border: 1px solid #b7e0c8; }
.flash-warning { background: #fbeecb; color: var(--gold-dark); border: 1px solid #e5d08a; }

/* 通用头部 */
.page-header {
    background: linear-gradient(135deg, var(--red-dark) 0%, var(--red) 60%, #d35400 100%);
    color: #fff7e9;
    border-radius: 16px;
    padding: 18px;
    margin-bottom: 16px;
    box-shadow: 0 6px 18px rgba(160,40,30,0.25);
    text-align: center;
    position: relative;
}
.page-header h1 { font-size: 22px; font-weight: 700; letter-spacing: 2px; }
.page-header p { font-size: 13px; opacity: 0.9; margin-top: 4px; }

/* 模块导航 */
.module-nav {
    display: flex;
    gap: 10px;
    padding: 10px 0;
    overflow-x: auto;
    justify-content: center;
}
.module-nav a {
    color: var(--sub);
    text-decoration: none;
    font-size: 14px;
    white-space: nowrap;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--card);
    border: 1px solid var(--line);
}
.module-nav a.active, .module-nav a:hover {
    color: var(--red);
    border-color: var(--red);
    background: #fdecea;
}

/* 顶部返回栏 */
.top-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    margin-bottom: 10px;
}
.top-bar .back-btn {
    width: 36px;
    height: 36px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--ink);
    font-size: 18px;
}
.top-bar .title {
    flex: 1;
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    color: var(--ink);
}

/* 隐藏滚动条但保持可滚动 */
.scroll-hidden::-webkit-scrollbar { display: none; }
.scroll-hidden { -ms-overflow-style: none; scrollbar-width: none; }

/* 动画 */
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn 0.3s ease-out; }