/* ============================================
   天宇VIP 前台样式
   深色科技风 + 渐变点缀
   ============================================ */

:root {
    --bg: #0b0f1a;
    --bg-soft: #111827;
    --card: #151d2e;
    --card-hover: #1a2438;
    --border: #24304a;
    --text: #e5e9f0;
    --text-dim: #8b96ad;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --accent: #5ac8fa;
    --gold: #f59e0b;
    --green: #22c55e;
    --red: #ef4444;
    --radius: 12px;
    --shadow: 0 8px 30px rgba(0, 0, 0, .35);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #7dd3fc; }

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 16px; }

.main-content { flex: 1; padding: 24px 16px 40px; }

.mono { font-family: Consolas, Monaco, monospace; }
.muted { color: var(--text-dim); }

/* ---------- 顶部导航 ---------- */
.site-header {
    background: rgba(11, 15, 26, .92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 32px;
    height: 60px;
}

.logo {
    font-size: 22px;
    font-weight: 800;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
    white-space: nowrap;
}

.main-nav { display: flex; gap: 6px; flex: 1; }

.main-nav a {
    color: var(--text-dim);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 14px;
    transition: all .2s;
}

.main-nav a:hover { color: var(--text); background: rgba(37, 99, 235, .12); }

.main-nav a.active { color: #fff; background: linear-gradient(135deg, #2563eb, #7c3aed); }

.header-user { display: flex; align-items: center; gap: 10px; }

.welcome { color: var(--text-dim); font-size: 13px; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-block;
    padding: 10px 22px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all .2s;
    background: transparent;
    color: var(--text);
    line-height: 1.4;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #fff;
    box-shadow: 0 4px 16px rgba(37, 99, 235, .35);
}
.btn-primary:hover { background: linear-gradient(135deg, #1d4ed8, #6d28d9); color: #fff; transform: translateY(-1px); }

.btn-outline { border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--accent); }

.btn-lg { padding: 14px 38px; font-size: 16px; border-radius: 10px; }
.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: 6px; }
.btn-block { display: block; width: 100%; }
.btn-warn { background: rgba(245, 158, 11, .15); color: #fbbf24; border-color: rgba(245, 158, 11, .4); }
.btn-danger { background: rgba(239, 68, 68, .15); color: #f87171; border-color: rgba(239, 68, 68, .4); }
.btn-danger:hover { background: rgba(239, 68, 68, .3); color: #fff; }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    text-align: center;
    padding: 80px 16px 70px;
    background:
        radial-gradient(ellipse 60% 50% at 50% -10%, rgba(37, 99, 235, .25), transparent),
        radial-gradient(ellipse 40% 40% at 80% 20%, rgba(124, 58, 237, .18), transparent);
    border-bottom: 1px solid var(--border);
}

.hero h1 {
    font-size: 46px;
    font-weight: 800;
    background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 14px;
}

.hero-sub { color: var(--text-dim); font-size: 18px; max-width: 600px; margin: 0 auto 34px; }

.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- 区块 ---------- */
.section-title {
    text-align: center;
    font-size: 26px;
    margin: 50px 0 28px;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    border-radius: 2px;
    margin: 10px auto 0;
    background: linear-gradient(90deg, #2563eb, #7c3aed);
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.card-title { font-size: 19px; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.card-desc { color: var(--text-dim); margin-bottom: 18px; font-size: 14px; }

/* ---------- 公告 ---------- */
.notice-section { margin-top: 24px; }
.notice-list { list-style: none; }
.notice-list li { padding: 12px 0; border-bottom: 1px dashed var(--border); }
.notice-list li:last-child { border-bottom: none; }
.notice-date { color: var(--gold); font-size: 13px; margin-right: 10px; }
.notice-content { color: var(--text-dim); font-size: 14px; margin-top: 4px; }

/* ---------- 特性 ---------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.feature-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px 20px;
    text-align: center;
    transition: all .25s;
}
.feature-card:hover { transform: translateY(-4px); border-color: var(--primary); background: var(--card-hover); }

.feature-icon { font-size: 36px; margin-bottom: 12px; }
.feature-card h3 { font-size: 17px; margin-bottom: 8px; }
.feature-card p { color: var(--text-dim); font-size: 13px; }

/* ---------- 套餐 ---------- */
.plan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.plan-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    position: relative;
    transition: all .25s;
}
.plan-card:hover { transform: translateY(-4px); }

.plan-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(37, 99, 235, .25);
}

.plan-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #fff;
    font-size: 12px;
    padding: 3px 16px;
    border-radius: 20px;
    white-space: nowrap;
}

.plan-card h3 { font-size: 19px; margin-bottom: 10px; }
.plan-price { font-size: 40px; font-weight: 800; margin: 10px 0 16px; color: #fff; }
.plan-price .currency { font-size: 18px; vertical-align: super; }
.plan-price .unit { font-size: 14px; color: var(--text-dim); font-weight: 400; }

.plan-card ul { list-style: none; text-align: left; margin: 0 0 20px; }
.plan-card ul li { padding: 6px 0; color: var(--text-dim); font-size: 14px; }

/* ---------- FAQ ---------- */
.faq-item { padding: 14px 0; border-bottom: 1px dashed var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-item h3 { font-size: 15px; margin-bottom: 6px; color: var(--accent); }
.faq-item p { color: var(--text-dim); font-size: 14px; }

/* ---------- 关于我们 ---------- */
.about-card { max-width: 820px; margin: 0 auto; }
.about-text { color: var(--text-dim); font-size: 15px; line-height: 1.9; }

/* ---------- 团队成员 ---------- */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
    max-width: 960px;
    margin: 0 auto;
}

.team-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 22px;
    text-align: center;
    transition: all .25s;
}
.team-card:hover { transform: translateY(-4px); border-color: var(--primary); background: var(--card-hover); }

.team-avatar {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(37, 99, 235, .3);
}
.team-avatar span { font-size: 34px; font-weight: 700; color: #fff; }
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }

.team-card h3 { font-size: 18px; margin-bottom: 4px; }
.team-role { color: var(--accent); font-size: 13px; margin-bottom: 10px; }
.team-intro { color: var(--text-dim); font-size: 13px; line-height: 1.7; margin-bottom: 12px; }

.team-skills { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; }
.skill-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    background: rgba(37, 99, 235, .12);
    border: 1px solid rgba(37, 99, 235, .3);
    color: #93c5fd;
}

/* ---------- 联系我们 ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    max-width: 960px;
    margin: 0 auto;
}

.contact-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px 20px;
    text-align: center;
    transition: all .25s;
}
.contact-card:hover { transform: translateY(-4px); border-color: var(--primary); }

.contact-icon { font-size: 32px; margin-bottom: 10px; }
.contact-card h3 { font-size: 15px; margin-bottom: 8px; }
.contact-card p { color: var(--text-dim); font-size: 13px; line-height: 1.8; word-break: break-all; }

/* ---------- 表单 ---------- */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--text-dim); }
.form-group input[type=text],
.form-group input[type=password],
.form-group input[type=email],
.form-group input[type=number],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-soft);
    color: var(--text);
    font-size: 14px;
    outline: none;
    transition: border-color .2s;
    font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--primary);
}
.form-group textarea { resize: vertical; }
.form-hint { color: var(--text-dim); font-size: 13px; margin-bottom: 10px; }

.checkbox-label { display: flex !important; align-items: center; gap: 8px; cursor: pointer; color: var(--text) !important; }
.checkbox-label input { width: auto !important; }

/* ---------- 提示 ---------- */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error { background: rgba(239, 68, 68, .12); border: 1px solid rgba(239, 68, 68, .35); color: #fca5a5; }
.alert-success { background: rgba(34, 197, 94, .12); border: 1px solid rgba(34, 197, 94, .35); color: #86efac; }

/* ---------- 登录注册 ---------- */
.auth-wrap { display: flex; justify-content: center; padding: 50px 16px; }

.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 34px 30px;
    box-shadow: var(--shadow);
}

.auth-title { font-size: 24px; text-align: center; margin-bottom: 24px; }
.auth-links { text-align: center; margin-top: 18px; font-size: 14px; color: var(--text-dim); }

/* ---------- 用户中心 ---------- */
.user-bar {
    display: flex;
    gap: 22px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 18px;
    margin-bottom: 20px;
    font-size: 14px;
    flex-wrap: wrap;
}
.user-bar-item { color: var(--text-dim); }

.user-layout { display: grid; grid-template-columns: 240px 1fr; gap: 20px; }
@media (max-width: 768px) { .user-layout { grid-template-columns: 1fr; } }

.user-sidebar .card { text-align: center; padding: 24px 16px; }

.user-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    margin: 0 auto 12px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: 700;
    color: #fff;
}

.user-sidebar h3 { margin-bottom: 4px; }
.user-status { color: var(--gold); font-size: 13px; margin-bottom: 16px; }

.sidebar-menu { list-style: none; }
.sidebar-menu li a {
    display: block;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text-dim);
    font-size: 14px;
    text-align: left;
    transition: all .2s;
}
.sidebar-menu li a:hover { background: rgba(37, 99, 235, .1); color: var(--text); }
.sidebar-menu li a.active { background: linear-gradient(135deg, #2563eb, #7c3aed); color: #fff; }

.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 22px; }
.info-item {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
}
.info-item span { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 4px; }
.info-item strong { font-size: 14px; }

.mt-20 { margin-top: 20px; }

/* ---------- 兑换页 ---------- */
.redeem-card { max-width: 560px; margin: 0 auto; }

.redeem-form { margin-top: 6px; }
.redeem-form input { font-size: 16px !important; padding: 14px !important; text-align: center; }

.redeem-tips { margin-top: 24px; border-top: 1px dashed var(--border); padding-top: 16px; }
.redeem-tips h3 { font-size: 15px; margin-bottom: 10px; color: var(--accent); }
.redeem-tips ul { list-style: none; }
.redeem-tips ul li { padding: 4px 0; font-size: 13px; color: var(--text-dim); }

/* ---------- 表格 ---------- */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
    text-align: left;
    padding: 10px 12px;
    background: var(--bg-soft);
    color: var(--text-dim);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(36, 48, 74, .5);
    vertical-align: middle;
}
.data-table tr:hover td { background: rgba(37, 99, 235, .05); }

.td-actions { white-space: nowrap; display: flex; gap: 6px; align-items: center; }
.td-summary { color: var(--text-dim); max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.empty-tip { color: var(--text-dim); text-align: center; padding: 30px 0; font-size: 14px; }

/* ---------- 标签 ---------- */
.tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    background: rgba(139, 150, 173, .15);
    color: var(--text-dim);
    white-space: nowrap;
}
.tag-green { background: rgba(34, 197, 94, .15); color: #4ade80; }
.tag-red { background: rgba(239, 68, 68, .15); color: #f87171; }
.tag-admin { background: rgba(245, 158, 11, .15); color: #fbbf24; }

/* ---------- 分页 ---------- */
.pagination { display: flex; gap: 6px; align-items: center; justify-content: center; margin-top: 20px; flex-wrap: wrap; }
.page-info { color: var(--text-dim); font-size: 13px; margin-right: 8px; }
.page-num {
    min-width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-size: 13px;
    transition: all .2s;
}
.page-num:hover { border-color: var(--primary); color: var(--accent); }
.page-num.active { background: linear-gradient(135deg, #2563eb, #7c3aed); color: #fff; border-color: transparent; }

/* ---------- 页脚 ---------- */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 26px 0;
    text-align: center;
    color: var(--text-dim);
    font-size: 13px;
    background: var(--bg-soft);
}
.site-footer p { margin: 4px 0; }