/* ============================================
   tinaleak.com 引流落地页样式
   独立样式文件，供 index.html 引用
   ============================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #0a0a0f;
    color: #e0e0e0;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景光效 */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(139, 30, 80, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(60, 20, 120, 0.12) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* 顶部导航 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    letter-spacing: 1px;
}

.logo span {
    color: #e94560;
}

.nav-tag {
    font-size: 12px;
    color: #888;
    border: 1px solid #333;
    padding: 4px 10px;
    border-radius: 4px;
}

/* Hero 区 */
.hero {
    text-align: center;
    padding: 60px 0 40px;
    animation: fadeInUp 0.8s ease;
}

.hero-badge {
    display: inline-block;
    font-size: 13px;
    color: #e94560;
    background: rgba(233, 69, 96, 0.1);
    border: 1px solid rgba(233, 69, 96, 0.3);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 38px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.3;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, #e94560, #b362ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 16px;
    color: #999;
    max-width: 600px;
    margin: 0 auto 30px;
}

/* 领取按钮 */
.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #e94560, #b362ff);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    padding: 16px 48px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(233, 69, 96, 0.6);
}

.btn-download:active {
    transform: translateY(0);
}

.btn-download svg {
    width: 22px;
    height: 22px;
    fill: #fff;
}

.hero-meta {
    margin-top: 14px;
    font-size: 13px;
    color: #666;
}

/* Hero 图片展示 */
.hero-images {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.hero-images img {
    width: 180px;
    height: 240px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid #222;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.hero-images img:hover {
    transform: translateY(-4px);
    border-color: rgba(233, 69, 96, 0.5);
}

/* 资料亮点卡片 */
.features {
    padding: 40px 0;
}

.section-title {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 24px;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: #141420;
    border: 1px solid #222;
    border-radius: 12px;
    padding: 28px 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: rgba(233, 69, 96, 0.4);
    transform: translateY(-3px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(233, 69, 96, 0.1);
    border-radius: 50%;
}

.feature-icon svg {
    width: 26px;
    height: 26px;
    fill: #e94560;
}

.feature-card h3 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 13px;
    color: #888;
}

/* 资料预览区 */
.preview {
    padding: 40px 0;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.preview-item {
    position: relative;
    aspect-ratio: 3 / 4;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.preview-item:hover img {
    transform: scale(1.08);
}

.preview-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 30px 12px 12px;
    font-size: 12px;
    color: #ddd;
}

.preview-lock {
    position: absolute;
    top: 8px; right: 8px;
    background: rgba(0,0,0,0.7);
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 11px;
    color: #e94560;
}

/* CTA 区 */
.cta-section {
    text-align: center;
    padding: 50px 0 60px;
}

.cta-box {
    background: linear-gradient(135deg, rgba(233,69,96,0.08), rgba(179,98,255,0.08));
    border: 1px solid rgba(233,69,96,0.2);
    border-radius: 16px;
    padding: 40px 30px;
}

.cta-box h2 {
    font-size: 24px;
    color: #fff;
    margin-bottom: 12px;
}

.cta-box p {
    font-size: 14px;
    color: #999;
    margin-bottom: 24px;
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 28px;
}

.countdown-unit {
    text-align: center;
}

.countdown-num {
    font-size: 28px;
    font-weight: 800;
    color: #e94560;
    font-variant-numeric: tabular-nums;
}

.countdown-label {
    font-size: 11px;
    color: #666;
    margin-top: 2px;
}

/* FAQ 常见问题（SEO） */
.faq {
    padding: 40px 0;
    max-width: 760px;
    margin: 0 auto;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: #141420;
    border: 1px solid #222;
    border-radius: 12px;
    padding: 20px 22px;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(233, 69, 96, 0.4);
}

.faq-item h3 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 8px;
}

.faq-item p {
    font-size: 14px;
    color: #999;
}

/* 底部 */
.footer {
    border-top: 1px solid #1a1a2e;
    padding: 24px 0;
    text-align: center;
    font-size: 12px;
    color: #555;
}

.footer a {
    color: #777;
    text-decoration: none;
    margin: 0 8px;
}

/* 弹窗 */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.8);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal {
    background: #141420;
    border: 1px solid #333;
    border-radius: 16px;
    padding: 36px 30px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    animation: scaleIn 0.3s ease;
}

.modal-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: rgba(233,69,96,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-icon svg {
    width: 30px; height: 30px; fill: #e94560;
}

.modal h3 {
    font-size: 20px;
    color: #fff;
    margin-bottom: 8px;
}

.modal p {
    font-size: 14px;
    color: #999;
    margin-bottom: 24px;
}

.modal .btn-download {
    width: 100%;
    justify-content: center;
}

.modal-close {
    display: block;
    margin-top: 14px;
    font-size: 13px;
    color: #666;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
}

/* 动画 */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

/* 响应式 */
@media (max-width: 768px) {
    .hero h1 { font-size: 26px; }
    .feature-grid { grid-template-columns: 1fr; }
    .preview-grid { grid-template-columns: repeat(2, 1fr); }
    .btn-download { font-size: 16px; padding: 14px 36px; }
}