/* ===== 全局重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #000000;
    color: #ffffff;
    font-family: -apple-system, "Microsoft YaHei", "PingFang SC", sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== 顶部菜单栏 ===== */
.navbar {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 0;
}

.nav-container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-shield {
    font-size: 20px;
}

.logo-text {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #ffffff;
}

.nav-links a.active {
    color: #f57c00;
}

.nav-brand {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
}

/* ===== 主内容 ===== */
.main {
    flex: 1;
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 24px 60px;
    width: 100%;
}

/* ===== 首页 Hero ===== */
.hero {
    text-align: center;
    padding: 40px 0 32px;
}

.hero-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}

.hero-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: 24px;
}

.hero-desc strong {
    color: #f57c00;
    font-weight: 500;
}

.hero-stats {
    margin-bottom: 32px;
}

.stat-item {
    display: inline-block;
    background: rgba(255, 255, 255, 0.05);
    padding: 12px 32px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: #f57c00;
    display: block;
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.stat-sub {
    display: block;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.25);
    margin-top: 4px;
}

/* ===== 按钮 ===== */
.btn-primary {
    display: inline-block;
    padding: 12px 36px;
    background: #f57c00;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: #e67300;
}

/* ===== 提交页面 ===== */
.submit-section {
    text-align: center;
    padding: 20px 0;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 8px;
}

.section-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    margin-bottom: 8px;
}

.section-desc .hint {
    color: rgba(255, 255, 255, 0.25);
    font-size: 13px;
}

.submit-form {
    max-width: 420px;
    margin: 28px auto 0;
    text-align: left;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    font-size: 15px;
    color: #ffffff;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus {
    border-color: #f57c00;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.2);
}

.submit-btn {
    width: 100%;
}

/* ===== 消息提示 ===== */
.message {
    max-width: 420px;
    margin: 16px auto 0;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 14px;
    display: none;
}

.message.success {
    display: block;
    background: rgba(245, 124, 0, 0.15);
    color: #f57c00;
    border: 1px solid rgba(245, 124, 0, 0.2);
}

.message.error {
    display: block;
    background: rgba(255, 70, 70, 0.1);
    color: #ff6b6b;
    border: 1px solid rgba(255, 70, 70, 0.15);
}

/* ===== 免责声明 ===== */
.notice {
    margin-top: 40px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.notice p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    line-height: 1.6;
}

.notice strong {
    color: rgba(255, 255, 255, 0.5);
}

/* ===== 底部联系（纯白） ===== */
.footer-links {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 13px;
    color: #ffffff;
}

.contact-info a {
    color: #ffffff;
    transition: color 0.2s;
}

.contact-info a:hover {
    color: #f57c00;
}

/* ===== 响应式 ===== */
@media (max-width: 600px) {
    .nav-container {
        flex-wrap: wrap;
        gap: 8px;
    }
    .nav-brand {
        display: none;
    }
    .hero-title {
        font-size: 22px;
    }
    .hero-icon {
        font-size: 48px;
    }
    .contact-info {
        gap: 12px;
        font-size: 12px;
    }
    .stat-item {
        padding: 10px 24px;
    }
    .stat-number {
        font-size: 22px;
    }
}