/* ============================================================
   轩澜·昂游万界之旅 — 文件与更新页专属样式
   ============================================================ */

:root {
    --accent-blue: #00d4ff;
}

/* ---------- 主体内容容器 ---------- */
.container {
    max-width: 1200px;
    margin: 120px auto 100px auto;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

/* 顶部横幅 */
.hero-section {
    background: var(--glass-bg);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3.5rem 3rem;
    text-align: center;
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.5),
        inset 0 1px 2px rgba(255, 255, 255, 0.1),
        inset 0 10px 30px rgba(0, 180, 255, 0.05);
    margin-bottom: 2.5rem;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.hero-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 180, 255, 0.1);
    border: 1px solid rgba(0, 180, 255, 0.25);
    border-radius: 20px;
    font-size: 0.85rem;
    color: #64d2ff;
    letter-spacing: 1px;
    margin-bottom: 1.2rem;
    box-shadow: 0 0 15px rgba(0, 180, 255, 0.1) inset;
}

.hero-title {
    font-size: 2.6rem;
    font-weight: 500;
    margin-bottom: 1.2rem;
    background: linear-gradient(to right, #ffffff, #bbf0ff, #e3b6ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: 3px;
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-sub);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* 下载矩阵列表 */
.download-flow {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.download-card {
    background: var(--glass-bg);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.2rem 2.5rem;
    box-shadow:
        0 15px 35px rgba(0, 0, 0, 0.3),
        inset 0 1px 1px rgba(255, 255, 255, 0.08);
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s, border-color 0.4s;
}

.download-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 180, 255, 0.3);
    box-shadow:
        0 25px 45px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(0, 180, 255, 0.12),
        inset 0 1px 2px rgba(255, 255, 255, 0.2);
}

/* 卡片上层：核心元数据与高端按钮 */
.card-meta-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 1.2rem;
    margin-bottom: 1.2rem;
}

.file-info-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.file-main-title {
    font-size: 1.4rem;
    font-weight: 500;
    color: #fff;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-badge {
    font-size: 0.75rem;
    padding: 2px 10px;
    background: rgba(0, 180, 255, 0.12);
    border: 1px solid rgba(0, 180, 255, 0.3);
    border-radius: 10px;
    color: #5ce1ff;
    letter-spacing: 0.5px;
}

.file-spec-row {
    font-size: 0.88rem;
    color: var(--text-sub);
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.file-spec-row strong {
    color: #fff;
    font-weight: 500;
}

/* 高级渐变微光下载按钮（占位态） */
.premium-dl-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.75), rgba(130, 0, 255, 0.55));
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    color: #fff;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    letter-spacing: 1px;
    box-shadow: 0 8px 20px rgba(0, 170, 255, 0.15), inset 0 1px 1px rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    cursor: pointer;
}
.premium-dl-btn:hover {
    transform: scale(1.03);
    box-shadow: 0 12px 25px rgba(0, 170, 255, 0.35), 0 0 15px rgba(130, 0, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
}
.premium-dl-btn::before {
    content: '➔';
    font-size: 0.85rem;
    transform: rotate(90deg);
    display: inline-block;
}

/* 卡片下层：文件深度介绍与更新追踪 */
.card-desc-block {
    font-size: 0.98rem;
    color: #d1ddf5;
    line-height: 1.7;
}

.log-section-title {
    font-size: 0.9rem;
    color: #8bcfff;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.log-bullet-list {
    list-style: none;
}
.log-bullet-list li {
    position: relative;
    padding-left: 1.2rem;
    font-size: 0.92rem;
    color: var(--text-sub);
    margin-bottom: 0.4rem;
}
.log-bullet-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

.hero-section, .download-card, .footer-bar {
    user-select: text;
}

/* ---------- 本页响应式 ---------- */
@media (max-width: 768px) {
    .container { margin-top: 100px; }
    .hero-section { padding: 2.5rem 1.5rem; }
    .hero-title { font-size: 1.8rem; }
    .hero-desc { font-size: 0.95rem; }
    .download-card { padding: 1.5rem; }
    .card-meta-block { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .premium-dl-btn { width: 100%; justify-content: center; }
}