@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- 现代化吉卜力温润白系（Light Mode）设计系统变量 --- */
:root {
    --bg-main: #ffffff; /* 纯白底色 */
    --bg-surface: #ffffff;
    --bg-accent: #f8fafc; /* 极浅蓝灰背景 */
    
    /* 暖绿与温润森林色系 */
    --primary: #059669; /* 森林深绿 */
    --primary-glow: rgba(5, 150, 105, 0.15);
    --secondary: #10b981; /* 活力嫩绿 */
    --secondary-glow: rgba(16, 185, 129, 0.15);
    --accent: #0284c7; /* 蓝天深蓝 */
    --accent-glow: rgba(2, 132, 199, 0.1);
    
    --text-primary: #0f172a; /* 深炭灰，避免刺眼纯黑 */
    --text-secondary: #475569; /* 灰石色 */
    --text-muted: #94a3b8; /* 浅雾灰 */
    
    --card-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.06);
    --card-border-hover: rgba(5, 150, 105, 0.25);
    --card-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.05), 0 1px 3px rgba(0, 0, 0, 0.02);
    --card-shadow-hover: 0 20px 40px -12px rgba(5, 150, 105, 0.12), 0 0 1px rgba(5, 150, 105, 0.2);
    
    --font-heading: 'Outfit', -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-body: 'Inter', -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    
    --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 重置与全局布局 --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.625;
    overflow-x: hidden;
    position: relative;
}

/* 龙猫水印图案背景层 */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    pointer-events: none;
    background-image: url('../assets/totoro_pattern.jpg');
    background-repeat: repeat;
    background-size: 250px 250px;
    opacity: 0.055; /* 5.5% 不透明度水印，确保正文极佳可读性 */
}

/* 水彩级梦幻氛围背景（Watercolor Aura - 龙猫森林风） */
.bg-decorations {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* 巨型森林水彩光晕，模拟夏日吉卜力晴空森林 */
.bg-glow-1 {
    position: absolute;
    top: -15%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.07) 0%, transparent 70%);
    filter: blur(130px);
}

.bg-glow-2 {
    position: absolute;
    top: 35%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(2, 132, 199, 0.05) 0%, transparent 70%);
    filter: blur(130px);
}

.bg-glow-3 {
    position: absolute;
    bottom: -10%;
    left: 15%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(251, 191, 36, 0.04) 0%, transparent 70%);
    filter: blur(130px);
}

/* 龙猫实体装饰：落叶与煤炭球小图标 */
.bg-decorations::after {
    content: "🍃";
    position: absolute;
    top: 15%;
    right: 12%;
    font-size: 1.5rem;
    opacity: 0.15;
    animation: float-element 8s infinite ease-in-out;
}

.bg-decorations::before {
    content: "🍂";
    position: absolute;
    top: 65%;
    left: 8%;
    font-size: 1.25rem;
    opacity: 0.12;
    animation: float-element 10s infinite ease-in-out -3s;
}

/* --- 响应式容器与卡片面板 --- */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.glass-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    box-shadow: var(--card-shadow);
    transition: var(--transition-smooth);
}

.glass-panel:hover {
    border-color: var(--card-border-hover);
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-4px);
}

/* --- 现代化头部导航（磨砂白） --- */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    transition: var(--transition-smooth);
}

header.scrolled {
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 4px 20px -5px rgba(0, 0, 0, 0.03);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 84px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
}

.logo-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 900;
    font-size: 1.2rem;
    font-family: var(--font-heading);
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.2);
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--text-primary) 60%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.8px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2.25rem;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    padding: 0.5rem 0;
}

nav a:hover, nav a.active {
    color: var(--primary);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    background: var(--text-primary);
    color: #ffffff !important;
    padding: 0.65rem 1.35rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
}

.nav-cta:hover {
    background: var(--primary);
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

/* --- Hero 视觉中心 --- */
.hero {
    padding: 9rem 0 6rem;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 5rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(5, 150, 105, 0.05);
    border: 1px solid rgba(5, 150, 105, 0.12);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 9999px;
    margin-bottom: 2rem;
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    background-color: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary);
    animation: pulse-glow 2s infinite;
}

.hero-content h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.12;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
    color: var(--text-primary);
}

.hero-content h1 span {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2.25rem;
    border-radius: 14px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff !important;
    box-shadow: 0 6px 20px -2px rgba(5, 150, 105, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(5, 150, 105, 0.45);
}

.btn-secondary {
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.08);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.btn-secondary:hover {
    background: #f8fafc;
    border-color: rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 2.5rem;
}

.stat-item h3 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 现代化 Mascot 插图区 */
.hero-image-wrapper {
    display: flex;
    justify-content: center;
    position: relative;
}

.totoro-image-card {
    padding: 1rem;
    border-radius: 32px;
    max-width: 440px;
    width: 100%;
    position: relative;
    z-index: 2;
    background: #ffffff;
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.06);
    animation: float-totoro 6s infinite ease-in-out;
}

.totoro-image-card img {
    width: 100%;
    height: auto;
    border-radius: 22px;
    object-fit: cover;
    filter: saturate(1.02);
    box-shadow: 0 10px 25px rgba(0,0,0,0.03);
}

.totoro-float-badge {
    position: absolute;
    bottom: -10px;
    right: -10px;
    padding: 0.8rem 1.5rem;
    background: #ffffff;
    border: 1px solid rgba(5, 150, 105, 0.15);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.85rem;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(5, 150, 105, 0.1);
    backdrop-filter: blur(10px);
}

/* --- 特性与优势 --- */
.features {
    padding: 7rem 0;
    background-color: var(--bg-accent);
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.85rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto;
    font-size: 1.05rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.feature-card {
    padding: 3.5rem 2.5rem;
    position: relative;
    overflow: hidden;
}

.feature-icon {
    width: 54px;
    height: 54px;
    background: rgba(5, 150, 105, 0.05);
    color: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin-bottom: 2.5rem;
    border: 1px solid rgba(5, 150, 105, 0.12);
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* --- 现代化价格套餐 --- */
.pricing {
    padding: 7rem 0;
}

.pricing-toggle-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.billing-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.billing-label.active {
    color: var(--text-primary);
}

.toggle-switch-container {
    position: relative;
    width: 60px;
    height: 32px;
    background: rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 9999px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.toggle-dot {
    position: absolute;
    top: 3px;
    left: 4px;
    width: 24px;
    height: 24px;
    background-color: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: var(--transition-smooth);
}

.toggle-switch-container.yearly .toggle-dot {
    left: 30px;
    background-color: var(--primary);
}

.discount-badge {
    padding: 0.25rem 0.6rem;
    background: rgba(5, 150, 105, 0.08);
    border: 1px solid rgba(5, 150, 105, 0.2);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 8px;
    margin-left: 0.5rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    align-items: stretch;
}

.pricing-card {
    padding: 3.5rem 2.25rem 3rem;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.pricing-card.popular {
    border-color: rgba(5, 150, 105, 0.3);
    background: linear-gradient(to bottom, rgba(5, 150, 105, 0.01) 0%, rgba(255,255,255,0) 100%);
    box-shadow: 0 20px 40px -15px rgba(5, 150, 105, 0.08);
}

.popular-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    background: var(--primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.3rem 0.8rem;
    border-radius: 8px;
}

.pricing-header h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.pricing-header p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 2rem;
}

.pricing-price {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: baseline;
    margin-bottom: 2.5rem;
    transition: var(--transition-fast);
}

.pricing-price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: 0.35rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 3rem;
    flex-grow: 1;
}

.pricing-features li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.pricing-features li::before {
    content: "✓";
    color: var(--primary);
    font-weight: 700;
}

.pricing-features li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
}

.pricing-features li.disabled::before {
    content: "✕";
    color: var(--text-muted);
}

.pricing-card .btn {
    width: 100%;
}

.pricing-card.popular .btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #fff;
    box-shadow: 0 8px 24px rgba(5, 150, 105, 0.2);
}

.pricing-card.popular .btn:hover {
    box-shadow: 0 12px 30px rgba(5, 150, 105, 0.4);
}

/* --- 用户评价 --- */
.testimonials {
    padding: 7rem 0;
    background-color: var(--bg-accent);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    padding: 3rem 2.5rem;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.avatar {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #fff;
    font-family: var(--font-heading);
}

.user-info h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
}

.user-info p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.rating {
    color: #f59e0b;
    margin-bottom: 1.25rem;
}

.testimonial-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.7;
}

/* --- 常见问题 FAQ --- */
.faq {
    padding: 7rem 0;
}

.faq-wrapper {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.faq-item {
    border-radius: 18px;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 2px 10px rgba(0,0,0,0.01);
    transition: var(--transition-smooth);
}

.faq-item:hover {
    border-color: rgba(0, 0, 0, 0.12);
}

.faq-question {
    width: 100%;
    padding: 1.75rem 2rem;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    outline: none;
}

.faq-question .arrow {
    transition: var(--transition-fast);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    background: rgba(0, 0, 0, 0.015);
}

.faq-answer-inner {
    padding: 0 2rem 2.25rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

.faq-item.active {
    border-color: rgba(5, 150, 105, 0.25);
    box-shadow: 0 10px 25px -10px rgba(5, 150, 105, 0.1);
}

.faq-item.active .faq-question .arrow {
    transform: rotate(180deg);
    color: var(--primary);
}

/* --- 博客列表 --- */
.blog-intro {
    padding: 7rem 0;
    background-color: var(--bg-accent);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.blog-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.blog-card-body {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-meta {
    font-size: 0.75rem;
    color: var(--primary);
    margin-bottom: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.blog-card-body h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.45;
    transition: var(--transition-fast);
}

.blog-card:hover .blog-card-body h3 {
    color: var(--primary);
}

.blog-card-body p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    flex-grow: 1;
    line-height: 1.65;
}

.blog-readmore {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: auto;
}

.blog-readmore::after {
    content: "→";
    transition: var(--transition-fast);
}

.blog-card:hover .blog-readmore::after {
    transform: translateX(5px);
}

/* --- 文章专有布局 --- */
.article-page {
    padding-top: 120px;
    padding-bottom: 7rem;
    background-color: #ffffff;
}

.article-container {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.article-header {
    margin-bottom: 4rem;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding-bottom: 3rem;
}

.article-back-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 2rem;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.article-back-link::before {
    content: "←";
}

.article-back-link:hover {
    color: var(--accent);
    transform: translateX(-3px);
}

.article-header h1 {
    font-family: var(--font-heading);
    font-size: 3.15rem;
    font-weight: 900;
    line-height: 1.25;
    margin-bottom: 1.5rem;
    letter-spacing: -1.2px;
    color: var(--text-primary);
}

.article-meta-info {
    display: flex;
    gap: 2rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.article-meta-info span strong {
    color: var(--text-primary);
}

.article-body {
    font-size: 1.15rem;
    line-height: 1.9;
    color: #334155; /* 优雅的深灰蓝，字大行稀 */
}

.article-body h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    margin-top: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    border-left: 4px solid var(--primary);
    padding-left: 0.75rem;
}

.article-body h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

.article-body p {
    margin-bottom: 1.75rem;
}

.article-body a:not(.btn) {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
    box-shadow: 0 1.5px 0 rgba(5, 150, 105, 0.2);
}

.article-body a:not(.btn):hover {
    color: var(--accent);
    box-shadow: 0 1.5px 0 var(--accent);
}

.article-body blockquote {
    background: rgba(5, 150, 105, 0.03);
    border-left: 4px solid var(--primary);
    padding: 2rem;
    border-radius: 16px;
    margin: 3rem 0;
    font-style: italic;
    color: #475569;
}

.article-body blockquote strong {
    color: var(--text-primary);
}

.article-body ul, .article-body ol {
    margin-bottom: 2.5rem;
    padding-left: 2rem;
}

.article-body li {
    margin-bottom: 0.65rem;
}

.article-footer-cta {
    margin-top: 5rem;
    padding: 4rem;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.06);
    background: var(--bg-accent);
}

.article-footer-cta h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.article-footer-cta p {
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 620px;
    margin-left: auto;
    margin-right: auto;
}

/* --- 页脚 --- */
footer {
    background: #0f172a;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding: 6rem 0 2.5rem;
    font-size: 0.9rem;
    color: #94a3b8;
}

footer .logo-text {
    background: linear-gradient(135deg, #ffffff 60%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 5rem;
}

.footer-brand p {
    margin-top: 1.25rem;
    color: #94a3b8;
    max-width: 300px;
}

.footer-links h4 {
    font-family: var(--font-heading);
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1.75rem;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2.5rem;
}

/* --- 动画效果 --- */
@keyframes pulse-glow {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.1); opacity: 1; box-shadow: 0 0 12px var(--primary); }
    100% { transform: scale(0.9); opacity: 0.6; }
}

@keyframes float-totoro {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

@keyframes float-element {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(15deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

/* --- 响应式布局自适应 --- */
@media (max-width: 1200px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    header .container {
        position: relative;
    }
    
    nav {
        position: absolute;
        top: 84px;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        padding: 2.5rem;
        display: none;
    }
    
    nav.open {
        display: block;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 1.75rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.open span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle.open span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.open span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .features-grid, .blog-grid, .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 440px;
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1.25rem;
        text-align: center;
    }
    
    .article-header h1 {
        font-size: 2.4rem;
    }
}