/* ============================================
   大满贯平台 — 独家设计系统
   风格代号：暖光层叠 · 纸艺美学
   Awwwards 获奖设计师作品
   ============================================ */

/* 基础重置 */
*, *::before, *::after { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

body { 
    font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif; 
    overflow-x: hidden; 
    background: #FCF8F3; 
    color: #2D2A26; 
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* 自定义滚动条 */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #F5F0EB; }
::-webkit-scrollbar-thumb { background: #D4C5B2; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #BFAD96; }

/* 选中文本样式 */
::selection { background: #E8614A; color: #fff; }

/* ============================================
   核心布局
   ============================================ */
.container { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 24px; 
}

.section { 
    padding: 100px 0; 
    position: relative;
}

.section:nth-child(even) { 
    background: #F8F4EF; 
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #E8614A, #F4BD62);
    border-radius: 2px;
    opacity: 0.3;
}

/* ============================================
   导航 — 固定顶部 · 暖光透明
   ============================================ */
.site-header { 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    z-index: 1000; 
    background: rgba(252, 248, 243, 0.88); 
    backdrop-filter: blur(20px) saturate(1.2);
    border-bottom: 1px solid rgba(232, 97, 74, 0.08); 
    transition: background 0.3s ease;
}

.site-header:hover {
    background: rgba(252, 248, 243, 0.96);
}

.header-inner { 
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    height: 72px; 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 24px; 
}

.logo { 
    display: flex; 
    align-items: center; 
    gap: 12px; 
    font-weight: 800; 
    font-size: 1.35rem; 
    text-decoration: none; 
    color: #2D2A26; 
    letter-spacing: -0.02em;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.85;
}

.logo-icon { 
    width: 40px; 
    height: 40px; 
    border-radius: 12px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: 1.2rem; 
    background: linear-gradient(135deg, #E8614A, #F4BD62);
    color: #fff;
    box-shadow: 0 4px 12px rgba(232, 97, 74, 0.25);
}

.main-nav { 
    display: flex; 
    align-items: center; 
    gap: 32px; 
    list-style: none; 
}

.main-nav a { 
    text-decoration: none; 
    font-size: 0.92rem; 
    font-weight: 500; 
    color: #5D5A56; 
    transition: all 0.3s ease; 
    position: relative;
    padding: 4px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #E8614A, #F4BD62);
    transition: width 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border-radius: 1px;
}

.main-nav a:hover { 
    color: #E8614A; 
}

.main-nav a:hover::after {
    width: 100%;
}

.nav-cta { 
    padding: 10px 24px; 
    border-radius: 50px; 
    color: #fff !important; 
    font-weight: 600; 
    background: linear-gradient(135deg, #E8614A, #D4513E);
    box-shadow: 0 4px 14px rgba(232, 97, 74, 0.3);
    transition: all 0.3s ease !important;
}

.nav-cta::after { display: none !important; }

.nav-cta:hover { 
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 20px rgba(232, 97, 74, 0.4);
    color: #fff !important;
}

.menu-toggle { 
    display: none; 
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #2D2A26;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ============================================
   Hero — 大满贯 · 荣耀开场
   ============================================ */
.hero { 
    min-height: 85vh; 
    display: flex; 
    align-items: center; 
    position: relative;
    background: linear-gradient(160deg, #FCF8F3 0%, #F5EDE4 40%, #FCF8F3 70%);
    overflow: hidden;
    padding-top: 72px;
}

.hero::before {
    content: '';
    position: absolute;
    right: -10%;
    top: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(232, 97, 74, 0.06) 0%, rgba(244, 189, 98, 0.04) 50%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    left: -5%;
    bottom: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(93, 138, 122, 0.05) 0%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content { 
    max-width: 640px; 
    position: relative;
    z-index: 2;
}

.hero-eyebrow { 
    display: inline-block; 
    font-size: 0.82rem; 
    font-weight: 700; 
    padding: 6px 18px; 
    border-radius: 50px; 
    margin-bottom: 20px; 
    background: linear-gradient(135deg, rgba(232, 97, 74, 0.08), rgba(244, 189, 98, 0.08));
    color: #E8614A;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1px solid rgba(232, 97, 74, 0.12);
}

.hero h1 { 
    font-size: 3.4rem; 
    line-height: 1.15; 
    margin-bottom: 20px; 
    font-weight: 800;
    letter-spacing: -0.03em;
    color: #2D2A26;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, #E8614A, #F4BD62);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p { 
    font-size: 1.15rem; 
    opacity: 0.65; 
    max-width: 520px; 
    margin-bottom: 36px; 
    line-height: 1.7;
    color: #5D5A56;
}

.hero-buttons { 
    display: flex; 
    gap: 16px; 
    flex-wrap: wrap;
}

.hero-image { 
    border-radius: 20px; 
    overflow: hidden; 
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 60px rgba(45, 42, 38, 0.08);
    transform: perspective(1000px) rotateY(-2deg);
    transition: transform 0.6s ease;
}

.hero-image:hover {
    transform: perspective(1000px) rotateY(-1deg) translateY(-4px);
}

.hero-image img { 
    width: 100%; 
    height: auto; 
    display: block;
}

/* 装饰性浮动元素 */
.hero-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}

.hero-dot {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.hero-dot:nth-child(1) {
    width: 80px;
    height: 80px;
    background: #E8614A;
    top: 15%;
    right: 20%;
    animation: float 6s ease-in-out infinite;
}

.hero-dot:nth-child(2) {
    width: 40px;
    height: 40px;
    background: #F4BD62;
    bottom: 25%;
    right: 35%;
    animation: float 8s ease-in-out infinite 1s;
}

.hero-dot:nth-child(3) {
    width: 60px;
    height: 60px;
    background: #5D8A7A;
    top: 40%;
    left: 10%;
    animation: float 7s ease-in-out infinite 0.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
}

/* ============================================
   按钮系统 — 暖色 · 圆润
   ============================================ */
.btn { 
    display: inline-flex; 
    align-items: center; 
    gap: 10px; 
    padding: 14px 32px; 
    border-radius: 50px; 
    font-weight: 600; 
    cursor: pointer; 
    border: none; 
    text-decoration: none; 
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

.btn-primary { 
    color: #fff; 
    background: linear-gradient(135deg, #E8614A, #D4513E);
    box-shadow: 0 4px 16px rgba(232, 97, 74, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(232, 97, 74, 0.4);
}

.btn-outline { 
    background: transparent; 
    border: 1.5px solid #D4C5B2; 
    color: #2D2A26;
}

.btn-outline:hover {
    border-color: #E8614A;
    color: #E8614A;
    background: rgba(232, 97, 74, 0.04);
    transform: translateY(-2px);
}

/* ============================================
   标签 / 标题 — 大满贯排版系统
   ============================================ */
.section-label { 
    display: inline-block; 
    font-size: 0.78rem; 
    font-weight: 700; 
    letter-spacing: 3px; 
    margin-bottom: 14px; 
    color: #E8614A;
    text-transform: uppercase;
    position: relative;
    padding-left: 36px;
}

.section-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 2px;
    background: linear-gradient(90deg, #E8614A, #F4BD62);
    border-radius: 1px;
}

.section-title { 
    font-size: 2.6rem; 
    margin-bottom: 16px; 
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: #2D2A26;
}

.section-desc { 
    max-width: 640px; 
    opacity: 0.6; 
    margin-bottom: 48px; 
    font-size: 1.05rem;
    line-height: 1.7;
    color: #5D5A56;
}

/* ============================================
   卡片网格 — 暖光 · 漂浮
   ============================================ */
.cards-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); 
    gap: 28px; 
}

.category-card { 
    border-radius: 20px; 
    padding: 32px 28px; 
    background: #fff;
    border: 1px solid rgba(212, 197, 178, 0.2); 
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #E8614A, #F4BD62);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.category-card:hover { 
    transform: translateY(-6px); 
    box-shadow: 0 16px 48px rgba(45, 42, 38, 0.06); 
    border-color: rgba(232, 97, 74, 0.15);
}

.category-card:hover::before {
    opacity: 1;
}

.card-icon { 
    width: 52px; 
    height: 52px; 
    border-radius: 14px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    margin-bottom: 20px; 
    font-size: 1.4rem; 
    background: linear-gradient(135deg, rgba(232, 97, 74, 0.08), rgba(244, 189, 98, 0.08));
    color: #E8614A;
    transition: all 0.3s ease;
}

.category-card:hover .card-icon {
    background: linear-gradient(135deg, rgba(232, 97, 74, 0.15), rgba(244, 189, 98, 0.15));
    transform: scale(1.05);
}

.category-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #2D2A26;
}

.category-card p {
    font-size: 0.9rem;
    color: #8A8580;
    line-height: 1.6;
    margin-bottom: 16px;
}

.card-link { 
    font-weight: 600; 
    font-size: 0.85rem; 
    text-decoration: none; 
    color: #E8614A;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.3s ease;
}

.card-link:hover {
    gap: 12px;
}

/* ============================================
   特性块 — 左右对称 · 暖色分割
   ============================================ */
.feature-block { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 64px; 
    align-items: center; 
}

.feature-image { 
    border-radius: 20px; 
    overflow: hidden; 
    box-shadow: 0 12px 40px rgba(45, 42, 38, 0.06);
    transition: transform 0.5s ease;
}

.feature-image:hover {
    transform: scale(1.01);
}

.feature-image img { 
    width: 100%; 
    height: auto; 
    display: block;
}

.feature-text { 
    padding: 20px 0;
}

.feature-text .section-title {
    font-size: 2rem;
}

.feature-text .section-desc {
    margin-bottom: 28px;
}

.feature-list { 
    list-style: none; 
}

.feature-list li { 
    padding: 10px 0; 
    display: flex; 
    align-items: center; 
    gap: 12px; 
    font-size: 1rem;
    color: #2D2A26;
    border-bottom: 1px solid rgba(212, 197, 178, 0.15);
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list li::before { 
    content: '✦'; 
    font-weight: 700; 
    color: #E8614A;
    font-size: 0.8rem;
}

/* ============================================
   数据条 — 大满贯成就墙
   ============================================ */
.stats-bar { 
    display: grid; 
    grid-template-columns: repeat(4, 1fr); 
    gap: 28px; 
    text-align: center; 
}

.stat-item { 
    padding: 32px 20px; 
    border-radius: 20px; 
    background: #fff;
    border: 1px solid rgba(212, 197, 178, 0.15);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.stat-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 3px;
    background: linear-gradient(90deg, #E8614A, #F4BD62, #5D8A7A);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(45, 42, 38, 0.05);
}

.stat-item:hover::after {
    opacity: 1;
}

.stat-number { 
    font-size: 2.8rem; 
    font-weight: 800; 
    background: linear-gradient(135deg, #E8614A, #F4BD62);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.stat-label { 
    font-size: 0.9rem; 
    opacity: 0.5; 
    margin-top: 8px; 
    color: #5D5A56;
    font-weight: 500;
}

/* ============================================
   内容墙 — 杂志风格瀑布
   ============================================ */
.content-wall { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); 
    gap: 28px; 
}

.content-wall-item { 
    border-radius: 20px; 
    overflow: hidden; 
    background: #fff;
    border: 1px solid rgba(212, 197, 178, 0.12); 
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
}

.content-wall-item:hover { 
    transform: translateY(-6px); 
    box-shadow: 0 16px 48px rgba(45, 42, 38, 0.06); 
    border-color: rgba(232, 97, 74, 0.1);
}

.content-wall-item img { 
    width: 100%; 
    height: 220px; 
    object-fit: cover; 
    transition: transform 0.6s ease;
}

.content-wall-item:hover img {
    transform: scale(1.03);
}

.content-wall-body { 
    padding: 24px; 
}

.content-wall-body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #2D2A26;
}

.content-wall-body p {
    font-size: 0.88rem;
    color: #8A8580;
    line-height: 1.6;
}

.content-wall-body .meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 14px;
    font-size: 0.78rem;
    color: #B0A89C;
}

/* ============================================
   FAQ — 暖色折叠
   ============================================ */
.faq-list { 
    max-width: 800px; 
    margin: 0 auto; 
}

.faq-item { 
    border: 1px solid rgba(212, 197, 178, 0.15); 
    border-radius: 16px; 
    margin-bottom: 10px; 
    overflow: hidden; 
    cursor: pointer; 
    background: #fff;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(232, 97, 74, 0.2);
}

.faq-item .faq-question { 
    padding: 20px 24px; 
    font-weight: 600; 
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    color: #2D2A26;
    font-size: 1.02rem;
    transition: color 0.3s ease;
}

.faq-item .faq-question::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: #D4C5B2;
    transition: transform 0.3s ease, color 0.3s ease;
}

.faq-item.open .faq-question::after {
    transform: rotate(45deg);
    color: #E8614A;
}

.faq-item .faq-answer { 
    padding: 0 24px 20px; 
    display: none; 
    opacity: 0.7; 
    color: #5D5A56;
    line-height: 1.7;
    font-size: 0.95rem;
}

.faq-item.open .faq-answer { 
    display: block; 
    animation: fadeSlide 0.35s ease;
}

@keyframes fadeSlide {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 0.7; transform: translateY(0); }
}

/* ============================================
   CTA横幅 — 暖色渐变 · 号召
   ============================================ */
.cta-banner { 
    padding: 64px 32px; 
    text-align: center; 
    border-radius: 24px; 
    background: linear-gradient(135deg, #E8614A, #D4513E, #C43D2E);
    color: #fff; 
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.08), transparent 70%);
    border-radius: 50%;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.05), transparent 70%);
    border-radius: 50%;
}

.cta-banner h2 { 
    color: #fff; 
    font-size: 2.2rem;
    margin-bottom: 14px;
    position: relative;
    z-index: 1;
}

.cta-banner p {
    color: rgba(255,255,255,0.8);
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
    font-size: 1.05rem;
}

.cta-banner .btn-primary { 
    background: #fff; 
    color: #E8614A;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    position: relative;
    z-index: 1;
}

.cta-banner .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

/* ============================================
   页脚 — 暖调 · 分层
   ============================================ */
.site-footer { 
    padding: 64px 0 28px; 
    background: #2D2A26; 
    color: rgba(255,255,255,0.7);
}

.site-footer .container {
    position: relative;
}

.footer-grid { 
    display: grid; 
    grid-template-columns: 2fr 1fr 1fr 1fr; 
    gap: 48px; 
}

.footer-brand { 
    color: rgba(255,255,255,0.85);
}

.footer-brand .logo-icon {
    background: linear-gradient(135deg, #F4BD62, #E8614A);
}

.footer-brand h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}

.footer-brand p {
    font-size: 0.88rem;
    line-height: 1.7;
    opacity: 0.6;
}

.footer-col { 
}

.footer-col h5 {
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: #F4BD62;
}

.footer-bottom { 
    border-top: 1px solid rgba(255,255,255,0.06); 
    margin-top: 48px; 
    padding-top: 24px; 
    text-align: center; 
    font-size: 0.82rem; 
    opacity: 0.4;
    color: rgba(255,255,255,0.5);
}

/* ============================================
   工具类
   ============================================ */
.text-accent { 
    color: #E8614A; 
}

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

.seo-description { 
    max-width: 600px; 
    margin: 0 auto 48px; 
    opacity: 0.6; 
    font-size: 1.05rem;
    line-height: 1.7;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* 装饰分割线 */
.divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #E8614A, #F4BD62);
    border-radius: 2px;
    margin: 20px 0 32px;
}

.text-center .divider {
    margin: 20px auto 32px;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .hero h1 { font-size: 2.8rem; }
    .section-title { font-size: 2.2rem; }
    .footer-grid { gap: 32px; }
}

@media (max-width: 768px) {
    .section { padding: 72px 0; }
    
    .hero { min-height: auto; padding: 120px 0 60px; }
    .hero .container { grid-template-columns: 1fr; gap: 40px; }
    .hero h1 { font-size: 2.4rem; }
    .hero p { font-size: 1rem; }
    .hero-image { transform: none; }
    
    .feature-block { grid-template-columns: 1fr; gap: 40px; }
    .feature-block:nth-child(even) .feature-image { order: -1; }
    
    .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .stat-number { font-size: 2.2rem; }
    
    .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: 72px; 
        left: 0; 
        width: 100%; 
        background: rgba(252, 248, 243, 0.98); 
        padding: 24px 32px; 
        gap: 16px;
        border-bottom: 1px solid rgba(212, 197, 178, 0.2);
        backdrop-filter: blur(20px);
    }
    .main-nav.open a { font-size: 1rem; padding: 8px 0; }
    .main-nav.open .nav-cta { text-align: center; margin-top: 8px; }
    
    .section-title { font-size: 1.8rem; }
    .cta-banner h2 { font-size: 1.6rem; }
    .cta-banner { padding: 48px 24px; }
}

@media (max-width: 480px) {
    .cards-grid, 
    .content-wall, 
    .stats-bar { grid-template-columns: 1fr; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
    
    .section-title { font-size: 1.6rem; }
    .hero h1 { font-size: 2rem; }
    .stat-number { font-size: 2rem; }
    
    .header-inner { height: 64px; }
    .logo { font-size: 1.1rem; }
    .logo-icon { width: 34px; height: 34px; font-size: 1rem; }
    
    .section { padding: 56px 0; }
    .category-card { padding: 24px 20px; }
}