/* ============================================
   赏金国际 · 琉璃光影设计系统
   风格：清透玻璃态 · 暖金点缀 · 国际感
   ============================================ */

/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body { 
    font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; 
    overflow-x:hidden; 
    background: #FCFAF7; 
    color: #1E2A32; 
    line-height: 1.6;
}

/* 滚动条美化 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #F0F5F8; }
::-webkit-scrollbar-thumb { background: #5A8FBB; border-radius: 9px; }

/* ========== 选中样式 ========== */
::selection { background: #D4A85333; color: #1E2A32; }

/* ========== 核心布局 ========== */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { 
    background: linear-gradient(135deg, #F0F5F8 0%, #F5F8FA 100%); 
}
.section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #5A8FBB22, #D4A85333, #5A8FBB22, transparent);
}

/* ========== 导航 ========== */
.site-header { 
    position:fixed; 
    top:0; 
    left:0; 
    width:100%; 
    z-index:1000; 
    background: rgba(252,250,247,0.88); 
    backdrop-filter: blur(18px) saturate(1.2); 
    border-bottom: 1px solid rgba(90,143,187,0.12); 
    box-shadow: 0 1px 20px rgba(90,143,187,0.06);
}
.header-inner { 
    display:flex; 
    align-items:center; 
    justify-content:space-between; 
    height:68px; 
    max-width:1200px; 
    margin:0 auto; 
    padding:0 24px; 
}
.logo { 
    display:flex; 
    align-items:center; 
    gap:10px; 
    font-weight:700; 
    font-size:1.25rem; 
    text-decoration:none; 
    color:#1E2A32; 
    letter-spacing: 0.5px;
    position: relative;
}
.logo-icon { 
    width:38px; 
    height:38px; 
    border-radius: 10px; 
    display:flex; 
    align-items:center; 
    justify-content:center; 
    font-size:1.1rem; 
    background: linear-gradient(135deg, #5A8FBB, #7DBDA4); 
    color: #fff;
    box-shadow: 0 4px 12px rgba(90,143,187,0.25);
}
.main-nav { 
    display:flex; 
    align-items:center; 
    gap:28px; 
    list-style:none; 
}
.main-nav a { 
    text-decoration:none; 
    font-size:0.9rem; 
    font-weight:500; 
    color: #1E2A32; 
    transition:0.3s; 
    position: relative;
    padding: 4px 0;
}
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #5A8FBB, #D4A853);
    transition: width 0.3s ease;
    border-radius: 2px;
}
.main-nav a:hover::after { width: 100%; }
.main-nav a:hover { color: #5A8FBB; }
.nav-cta { 
    padding:9px 24px; 
    border-radius: 30px; 
    color:#fff!important; 
    font-weight:600; 
    background: linear-gradient(135deg, #5A8FBB, #7DBDA4); 
    box-shadow: 0 4px 16px rgba(90,143,187,0.25);
    transition: all 0.3s ease !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { 
    transform: translateY(-1px); 
    box-shadow: 0 6px 24px rgba(90,143,187,0.35); 
    color:#fff!important; 
}
.menu-toggle { 
    display:none; 
    width:36px; 
    height:36px; 
    align-items:center; 
    justify-content:center; 
    background: none; 
    border: 1px solid rgba(90,143,187,0.2); 
    border-radius: 8px; 
    cursor:pointer;
    color: #1E2A32;
    font-size: 1.2rem;
}

/* ========== Hero ========== */
.hero { 
    min-height:75vh; 
    display:flex; 
    align-items:center; 
    position: relative;
    background: linear-gradient(165deg, #FCFAF7 0%, #F0F5F8 60%, #F5F0EC 100%);
    overflow: hidden;
    margin-top: 0;
    padding-top: 68px;
}
.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(90,143,187,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(212,168,83,0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.hero-content { 
    max-width:720px; 
    position: relative;
    z-index: 1;
}
.hero-eyebrow { 
    display:inline-block; 
    font-size:0.8rem; 
    font-weight:600; 
    padding:6px 18px; 
    border-radius: 30px; 
    margin-bottom:18px; 
    background: linear-gradient(135deg, rgba(90,143,187,0.1), rgba(125,189,164,0.1)); 
    color: #5A8FBB;
    letter-spacing: 1px;
    border: 1px solid rgba(90,143,187,0.12);
}
.hero h1 { 
    font-size:3.2rem; 
    line-height:1.15; 
    margin-bottom:20px; 
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #1E2A32 40%, #5A8FBB 70%, #7DBDA4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero p { 
    font-size:1.1rem; 
    opacity:0.7; 
    max-width:560px; 
    margin-bottom:36px; 
    color: #2C3E50;
    line-height: 1.7;
}
.hero-buttons { 
    display:flex; 
    gap:16px; 
}
.hero-image { 
    border-radius:16px; 
    overflow:hidden; 
    box-shadow: 0 20px 60px rgba(90,143,187,0.12);
}
.hero-image img { 
    width:100%; 
    height:auto; 
    display: block;
}

/* ========== 按钮 ========== */
.btn { 
    display:inline-flex; 
    align-items:center; 
    gap:10px; 
    padding:14px 32px; 
    border-radius: 30px; 
    font-weight:600; 
    cursor:pointer; 
    border:none; 
    text-decoration:none; 
    transition:0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
    font-size: 0.9rem;
    letter-spacing: 0.3px;
}
.btn-primary { 
    color:#fff; 
    background: linear-gradient(135deg, #5A8FBB, #7DBDA4); 
    box-shadow: 0 4px 20px rgba(90,143,187,0.3);
}
.btn-primary:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 8px 32px rgba(90,143,187,0.4); 
}
.btn-outline { 
    background:transparent; 
    border:1.5px solid #5A8FBB; 
    color: #5A8FBB;
}
.btn-outline:hover { 
    background: rgba(90,143,187,0.06); 
    border-color: #7DBDA4; 
    color: #7DBDA4;
    transform: translateY(-2px);
}

/* ========== 标签 / 标题 ========== */
.section-label { 
    display:inline-block; 
    font-size:0.75rem; 
    font-weight:700; 
    letter-spacing:3px; 
    margin-bottom:14px; 
    color: #D4A853;
    text-transform: uppercase;
    position: relative;
    padding-left: 42px;
}
.section-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #D4A853, transparent);
    border-radius: 2px;
}
.section-title { 
    font-size:2.2rem; 
    margin-bottom:14px; 
    font-weight: 700;
    letter-spacing: -0.3px;
    color: #1E2A32;
}
.section-desc { 
    max-width:600px; 
    opacity:0.7; 
    margin-bottom:44px; 
    color: #2C3E50;
    line-height: 1.7;
}

/* ========== 卡片网格 ========== */
.cards-grid { 
    display:grid; 
    grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); 
    gap:28px; 
}
.category-card { 
    border-radius:16px; 
    padding:32px 28px; 
    border: 1px solid rgba(90,143,187,0.08); 
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(8px);
    transition:0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
    box-shadow: 0 4px 24px rgba(90,143,187,0.04);
    position: relative;
    overflow: hidden;
}
.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #5A8FBB, #D4A853, #7DBDA4);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.category-card:hover::before { opacity: 1; }
.category-card:hover { 
    transform:translateY(-6px); 
    box-shadow: 0 16px 48px rgba(90,143,187,0.12); 
    border-color: rgba(90,143,187,0.15);
}
.card-icon { 
    width:52px; 
    height:52px; 
    border-radius:14px; 
    display:flex; 
    align-items:center; 
    justify-content:center; 
    margin-bottom:18px; 
    font-size:1.4rem; 
    background: linear-gradient(135deg, rgba(90,143,187,0.1), rgba(125,189,164,0.08)); 
    color: #5A8FBB;
    border: 1px solid rgba(90,143,187,0.06);
}
.category-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1E2A32;
}
.category-card p {
    font-size: 0.9rem;
    opacity: 0.65;
    line-height: 1.6;
    margin-bottom: 16px;
}
.card-link { 
    font-weight:600; 
    font-size:0.85rem; 
    text-decoration:none; 
    color: #5A8FBB; 
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s ease;
}
.card-link:hover { gap: 10px; color: #7DBDA4; }

/* ========== 特性块 ========== */
.feature-block { 
    display:grid; 
    grid-template-columns:1fr 1fr; 
    gap:60px; 
    align-items:center; 
}
.feature-image { 
    border-radius:16px; 
    overflow:hidden; 
    box-shadow: 0 12px 40px rgba(90,143,187,0.08);
    border: 1px solid rgba(90,143,187,0.06);
}
.feature-image img { 
    width:100%; 
    height:auto; 
    display: block;
}
.feature-text { 
    padding: 20px 0;
}
.feature-text h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1E2A32;
}
.feature-text p {
    font-size: 0.95rem;
    opacity: 0.7;
    line-height: 1.7;
    margin-bottom: 20px;
}
.feature-list { 
    list-style:none; 
    margin-top: 8px;
}
.feature-list li { 
    padding:8px 0; 
    display:flex; 
    align-items:center; 
    gap:12px; 
    font-size: 0.95rem;
    color: #1E2A32;
}
.feature-list li::before { 
    content:'✦'; 
    font-weight:400; 
    color: #D4A853; 
    font-size: 0.8rem;
}

/* ========== 数据条 ========== */
.stats-bar { 
    display:grid; 
    grid-template-columns:repeat(4,1fr); 
    gap:28px; 
    text-align:center; 
}
.stat-item { 
    padding:32px 20px; 
    border-radius:16px; 
    border:1px solid rgba(90,143,187,0.06); 
    background: rgba(255,255,255,0.6);
    backdrop-filter: blur(6px);
    transition: 0.3s ease;
    box-shadow: 0 4px 20px rgba(90,143,187,0.03);
}
.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(90,143,187,0.08);
    border-color: rgba(212,168,83,0.2);
}
.stat-number { 
    font-size:2.6rem; 
    font-weight:800; 
    background: linear-gradient(135deg, #5A8FBB, #D4A853); 
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}
.stat-label { 
    font-size:0.9rem; 
    opacity:0.6; 
    margin-top:8px; 
    color: #2C3E50;
}

/* ========== 内容墙 ========== */
.content-wall { 
    display:grid; 
    grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); 
    gap:28px; 
}
.content-wall-item { 
    border-radius:16px; 
    overflow:hidden; 
    border:1px solid rgba(90,143,187,0.06); 
    background: #fff;
    transition:0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
    box-shadow: 0 4px 20px rgba(90,143,187,0.03);
}
.content-wall-item:hover { 
    transform:translateY(-6px); 
    box-shadow: 0 16px 48px rgba(90,143,187,0.1); 
    border-color: rgba(90,143,187,0.12);
}
.content-wall-item img { 
    width:100%; 
    height:200px; 
    object-fit:cover; 
    transition: transform 0.6s ease;
}
.content-wall-item:hover img { transform: scale(1.03); }
.content-wall-body { 
    padding:24px 24px 28px; 
}
.content-wall-body h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1E2A32;
}
.content-wall-body p {
    font-size: 0.9rem;
    opacity: 0.65;
    line-height: 1.6;
}

/* ========== FAQ ========== */
.faq-list { 
    max-width:800px; 
    margin:0 auto; 
}
.faq-item { 
    border:1px solid rgba(90,143,187,0.08); 
    border-radius:12px; 
    margin-bottom:10px; 
    overflow:hidden; 
    cursor:pointer; 
    background: rgba(255,255,255,0.5);
    backdrop-filter: blur(4px);
    transition: 0.3s ease;
    box-shadow: 0 2px 12px rgba(90,143,187,0.02);
}
.faq-item:hover {
    border-color: rgba(90,143,187,0.15);
    box-shadow: 0 4px 20px rgba(90,143,187,0.06);
}
.faq-item .faq-question { 
    padding:18px 24px; 
    font-weight:600; 
    display:flex; 
    justify-content:space-between; 
    align-items: center;
    color: #1E2A32;
    font-size: 1rem;
}
.faq-item .faq-question::after {
    content: '⌄';
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    color: #5A8FBB;
    opacity: 0.5;
}
.faq-item.open .faq-question::after {
    transform: rotate(180deg);
}
.faq-item .faq-answer { 
    padding:0 24px 20px; 
    display:none; 
    opacity:0.7; 
    color: #2C3E50;
    line-height: 1.7;
    font-size: 0.95rem;
}
.faq-item.open .faq-answer { 
    display:block; 
}

/* ========== CTA横幅 ========== */
.cta-banner { 
    padding:64px 32px; 
    text-align:center; 
    border-radius:20px; 
    background: linear-gradient(135deg, #5A8FBB 0%, #7DBDA4 50%, #6BA3C9 100%); 
    color:#fff; 
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 64px rgba(90,143,187,0.2);
}
.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(212,168,83,0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.cta-banner h2 { 
    color:#fff; 
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.cta-banner p {
    color: rgba(255,255,255,0.85);
    max-width: 520px;
    margin: 0 auto 28px;
    font-size: 1rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}
.cta-banner .btn-primary { 
    background:#fff; 
    color: #5A8FBB !important; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    position: relative;
    z-index: 1;
}
.cta-banner .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

/* ========== 页脚 ========== */
.site-footer { 
    padding:64px 0 28px; 
    background: #F0F5F8; 
    border-top: 1px solid rgba(90,143,187,0.06);
}
.footer-grid { 
    display:grid; 
    grid-template-columns:2fr 1fr 1fr 1fr; 
    gap:48px; 
}
.footer-brand { 
    padding-right: 40px;
}
.footer-brand h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1E2A32;
}
.footer-brand p {
    font-size: 0.9rem;
    opacity: 0.65;
    line-height: 1.7;
    color: #2C3E50;
}
.footer-col { 
}
.footer-col h5 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1E2A32;
    letter-spacing: 0.5px;
}
.footer-col ul {
    list-style: none;
}
.footer-col ul li {
    margin-bottom: 8px;
}
.footer-col ul a {
    text-decoration: none;
    color: #2C3E50;
    font-size: 0.9rem;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}
.footer-col ul a:hover { opacity: 1; color: #5A8FBB; }
.footer-bottom { 
    border-top:1px solid rgba(90,143,187,0.1); 
    margin-top:40px; 
    padding-top:24px; 
    text-align:center; 
    font-size:0.85rem; 
    color: #2C3E50;
    opacity: 0.6;
}

/* ========== 工具类 ========== */
.text-accent { 
    color: #D4A853; 
}
.text-center { 
    text-align:center; 
}
.seo-description { 
    max-width:600px; 
    margin:0 auto 48px; 
    opacity:0.7; 
    color: #2C3E50;
    line-height: 1.7;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ========== 装饰性辅助类 ========== */
.glass-card {
    background: rgba(255,255,255,0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(90,143,187,0.08);
    border-radius: 16px;
}
.gradient-border {
    position: relative;
    border: none;
}
.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 1px;
    background: linear-gradient(135deg, #5A8FBB, #D4A853, #7DBDA4);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.4rem; }
    .hero { min-height: 60vh; }
    .section-title { font-size: 1.8rem; }
    .feature-block { grid-template-columns:1fr; gap: 32px; }
    .stats-bar { grid-template-columns:repeat(2,1fr); gap: 16px; }
    .footer-grid { grid-template-columns:1fr 1fr; gap: 32px; }
    .main-nav { display:none; }
    .menu-toggle { display:flex; }
    .main-nav.open { 
        display:flex; 
        flex-direction:column; 
        position:absolute; 
        top:68px; 
        left:0; 
        width:100%; 
        background: rgba(252,250,247,0.98); 
        backdrop-filter: blur(18px);
        padding:24px 28px; 
        gap: 16px;
        border-bottom: 1px solid rgba(90,143,187,0.08);
        box-shadow: 0 20px 40px rgba(0,0,0,0.04);
    }
    .main-nav.open a { padding: 8px 0; }
    .main-nav.open a::after { display: none; }
    .cta-banner { padding: 48px 24px; }
    .cta-banner h2 { font-size: 1.6rem; }
}

@media (max-width: 480px) {
    .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
    .footer-grid { grid-template-columns:1fr; }
    .hero-buttons { flex-direction:column; gap: 12px; }
    .hero h1 { font-size: 2rem; }
    .hero { min-height: 50vh; padding-top: 80px; }
    .section-title { font-size: 1.5rem; }
    .stat-number { font-size: 2rem; }
    .feature-block { gap: 24px; }
    .feature-text h3 { font-size: 1.3rem; }
    .container { padding: 0 16px; }
    .section { padding: 56px 0; }
    .header-inner { padding: 0 16px; }
    .cta-banner { padding: 40px 20px; border-radius: 14px; }
    .cta-banner h2 { font-size: 1.3rem; }
    .category-card { padding: 24px 20px; }
    .stat-item { padding: 24px 16px; }
}