/* ==========================================================================
   一枝红杏导航页 (yzhxjc.homes) - 新中式典雅 CSS 样式系统
   ========================================================================== */

:root {
    --primary-red: #C81424;
    --primary-red-hover: #A00F1B;
    --primary-red-light: rgba(200, 20, 36, 0.06);
    --primary-red-glow: rgba(200, 20, 36, 0.25);
    
    --accent-gold: #D4AF37;
    --accent-gold-hover: #B89428;
    --accent-gold-light: rgba(212, 175, 55, 0.12);
    
    --bg-body: #FAF7F2;
    --bg-card: #FFFFFF;
    --bg-card-alt: #F6F2EB;
    
    --text-heading: #1A1A1A;
    --text-body: #333333;
    --text-muted: #666666;
    --text-light: #888888;
    
    --border-color: rgba(200, 20, 36, 0.12);
    --border-gold: rgba(212, 175, 55, 0.3);
    
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 8px 24px rgba(200, 20, 36, 0.08);
    --shadow-lg: 0 16px 40px rgba(200, 20, 36, 0.12);
    
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-body);
    color: var(--text-body);
    line-height: 1.7;
    overflow-x: hidden;
    /* 全站水墨红杏底纹 */
    background-image: 
        linear-gradient(180deg, rgba(250, 247, 242, 0.85) 0%, rgba(250, 247, 242, 0.95) 100%),
        url('assets/red_apricot_bg.jpg');
    background-repeat: repeat-y;
    background-position: top center;
    background-size: 100% auto;
    background-attachment: fixed;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

/* 典雅国风组件 */
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--primary-red-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--primary-red);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.section-tag::before {
    content: "🌸";
    font-size: 0.9rem;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.3rem;
    color: var(--text-heading);
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 680px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-red) 0%, #A80D1A 100%);
    color: #FFFFFF;
    box-shadow: 0 6px 20px var(--primary-red-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(200, 20, 36, 0.38);
    background: linear-gradient(135deg, #D61829 0%, #B8101E 100%);
}

.btn-secondary {
    background: #FFFFFF;
    color: var(--primary-red);
    border: 1.5px solid var(--primary-red);
}

.btn-secondary:hover {
    background: var(--primary-red-light);
    transform: translateY(-2px);
}

.btn-gold {
    background: linear-gradient(135deg, #E6C258 0%, #B88E20 100%);
    color: #1A1A1A;
    font-weight: 700;
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.35);
}

/* 顶部导航栏 Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(250, 247, 242, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary-red), #900B17);
    color: #FFFFFF;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: bold;
    box-shadow: 0 4px 12px var(--primary-red-glow);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-heading);
    letter-spacing: 1px;
}

.logo-sub {
    font-size: 0.72rem;
    color: var(--primary-red);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-body);
    position: relative;
    padding: 6px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 100%;
    height: 2px;
    background: var(--primary-red);
    transition: var(--transition);
}

.nav-link:hover::after, .nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    font-size: 1.5rem;
    color: var(--text-heading);
}

/* Hero 核心主视觉 */
.hero {
    position: relative;
    padding: 160px 0 90px;
    overflow: hidden;
}

.hero-bg-wrapper {
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    z-index: 0;
    opacity: 0.45;
    pointer-events: none;
    mask-image: linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
    -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: #FFFFFF;
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-full);
    color: #8C6A12;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.hero-badge span {
    width: 8px;
    height: 8px;
    background: #52C41A;
    border-radius: 50%;
    box-shadow: 0 0 8px #52C41A;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.2rem;
    line-height: 1.25;
    color: var(--text-heading);
    margin-bottom: 20px;
    font-weight: 800;
}

.hero-title em {
    font-style: normal;
    color: var(--primary-red);
    background: linear-gradient(135deg, var(--primary-red), #8B0813);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 580px;
}

.hero-btns {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-features {
    display: flex;
    gap: 24px;
    padding-top: 24px;
    border-top: 1px dashed var(--border-color);
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.92rem;
    color: var(--text-body);
    font-weight: 500;
}

.hero-feature-icon {
    color: var(--primary-red);
    font-size: 1.1rem;
}

.hero-card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-lg);
    position: relative;
    backdrop-filter: blur(10px);
}

.hero-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--primary-red-light);
}

.hero-card-title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-heading);
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: #52C41A;
    font-weight: 600;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #52C41A;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(82, 196, 26, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(82, 196, 26, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(82, 196, 26, 0); }
}

/* ==========================================================================
   全站所有板块统一注入新中式一枝红杏背景元素
   ========================================================================== */

/* 页面通用背景图叠加样式 */
.section-with-bg {
    position: relative;
    padding: 90px 0;
    overflow: hidden;
}

.section-bg-apricot {
    position: absolute;
    width: 480px;
    height: 480px;
    pointer-events: none;
    z-index: 1;
    opacity: 0.16;
    background-image: url('assets/red_apricot_bg.jpg');
    background-size: cover;
    background-position: center;
    border-radius: 50%;
    filter: contrast(1.1) saturate(1.2);
}

.bg-pos-top-right {
    top: -50px;
    right: -100px;
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 70%);
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 70%);
}

.bg-pos-bottom-left {
    bottom: -60px;
    left: -100px;
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 70%);
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 70%);
}

.bg-pos-center-right {
    top: 30%;
    right: -120px;
    width: 600px;
    height: 600px;
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 70%);
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 70%);
}

/* 核心优势板块 */
.advantages {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.adv-card {
    background: rgba(250, 247, 242, 0.95);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.adv-card::after {
    content: "🌸";
    position: absolute;
    bottom: 10px;
    right: 14px;
    font-size: 2rem;
    opacity: 0.08;
    transition: var(--transition);
}

.adv-card:hover::after {
    opacity: 0.25;
    transform: scale(1.2) rotate(15deg);
}

.adv-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-red);
    background: #FFFFFF;
}

.adv-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-red-light) 0%, rgba(212, 175, 55, 0.15) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-red);
}

.adv-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 12px;
}

.adv-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 节点延迟与状态板块 */
.node-status-section {
    background: rgba(250, 247, 242, 0.6);
}

.node-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.92);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.node-stats-summary {
    display: flex;
    gap: 24px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-val {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-red);
}

.stat-lbl {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.node-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.node-card {
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: var(--transition);
    position: relative;
}

.node-card:hover {
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-sm);
    transform: translateY(-3px);
    background: #FFFFFF;
}

.node-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.node-flag-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.node-flag {
    font-size: 1.5rem;
}

.node-name {
    font-weight: 700;
    color: var(--text-heading);
    font-size: 1rem;
}

.node-tag {
    font-size: 0.72rem;
    padding: 2px 8px;
    background: var(--primary-red-light);
    color: var(--primary-red);
    border-radius: 4px;
    font-weight: 600;
}

.node-ping-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 10px;
    border-top: 1px dashed var(--bg-card-alt);
}

.node-ping {
    font-size: 1.2rem;
    font-weight: 800;
    font-family: monospace;
}

.ping-fast { color: #52C41A; }
.ping-medium { color: #FA8C16; }

.node-line-type {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* 套餐价格板块 */
.pricing-section {
    background: rgba(255, 255, 255, 0.85);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    align-items: stretch;
}

.price-card {
    background: rgba(250, 247, 242, 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 24px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition);
}

.price-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    background: #FFFFFF;
}

.price-card.featured {
    background: #FFFFFF;
    border: 2px solid var(--primary-red);
    box-shadow: var(--shadow-lg);
    transform: scale(1.03);
}

.price-card.featured:hover {
    transform: scale(1.03) translateY(-6px);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-red), #900B17);
    color: #FFFFFF;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 1px;
    box-shadow: 0 4px 10px var(--primary-red-glow);
}

.price-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.price-name {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 8px;
}

.price-val {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--primary-red);
    font-family: var(--font-sans);
}

.price-val span {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

.price-sub {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 4px;
}

.price-features {
    list-style: none;
    margin-bottom: 30px;
    flex-grow: 1;
}

.price-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.92rem;
    color: var(--text-body);
    margin-bottom: 12px;
}

.price-features li::before {
    content: "✓";
    color: var(--primary-red);
    font-weight: bold;
}

.price-cta {
    width: 100%;
}

/* 用户评价板块 */
.reviews-section {
    background: rgba(250, 247, 242, 0.7);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.review-card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.review-card::before {
    content: "🌸";
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.8rem;
    opacity: 0.1;
}

.review-stars {
    color: #FFC107;
    font-size: 1.1rem;
    margin-bottom: 14px;
}

.review-text {
    font-size: 0.96rem;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px dashed var(--border-color);
}

.author-avatar {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-red-light), rgba(212,175,55,0.2));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--primary-red);
    font-size: 1.1rem;
    border: 1px solid var(--border-color);
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-heading);
}

.author-role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 知识库与教程板块 (8篇文章) */
.knowledge-section {
    background: rgba(255, 255, 255, 0.88);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 50px;
}

.article-card {
    background: rgba(250, 247, 242, 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.article-card::after {
    content: "🌸";
    position: absolute;
    bottom: -10px;
    right: -5px;
    font-size: 2.2rem;
    opacity: 0.08;
    transition: var(--transition);
}

.article-card:hover::after {
    opacity: 0.22;
    transform: scale(1.15) rotate(-10deg);
}

.article-card:hover {
    border-color: var(--primary-red);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    background: #FFFFFF;
}

.article-cat {
    font-size: 0.78rem;
    color: var(--primary-red);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.article-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-heading);
    line-height: 1.4;
    margin-bottom: 12px;
}

.article-excerpt {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-light);
    padding-top: 12px;
    border-top: 1px solid rgba(200, 20, 36, 0.08);
}

.read-more-btn {
    color: var(--primary-red);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* 8篇详细长文章展示区域/模态窗样式 */
.articles-detail-container {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.full-article-box {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    position: relative;
    scroll-margin-top: 100px;
    overflow: hidden;
}

.full-article-box::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 260px;
    height: 260px;
    background-image: url('assets/red_apricot_bg.jpg');
    background-size: cover;
    opacity: 0.06;
    pointer-events: none;
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 20%, rgba(0,0,0,0) 80%);
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 20%, rgba(0,0,0,0) 80%);
}

.full-article-box h3 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    color: var(--text-heading);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-red-light);
}

.full-article-box h4 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--primary-red);
    margin: 24px 0 12px;
}

.full-article-box p {
    font-size: 1rem;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 16px;
    text-align: justify;
}

.full-article-box ul, .full-article-box ol {
    margin: 16px 0 20px 24px;
    color: var(--text-body);
}

.full-article-box li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.article-inner-nav {
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin: 20px 0;
}

.article-inner-nav-title {
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.article-cta-box {
    background: linear-gradient(135deg, var(--primary-red-light) 0%, rgba(212,175,55,0.1) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* 常见问题板块 FAQ Accordion */
.faq-section {
    background: rgba(250, 247, 242, 0.6);
}

.faq-wrapper {
    max-width: 860px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-question {
    padding: 22px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-heading);
    cursor: pointer;
}

.faq-icon {
    width: 28px;
    height: 28px;
    background: var(--primary-red-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-red);
    font-size: 1.2rem;
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    background: var(--primary-red);
    color: #FFFFFF;
}

.faq-answer {
    padding: 0 28px 22px;
    color: var(--text-muted);
    font-size: 0.98rem;
    line-height: 1.7;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* 页脚 Footer */
.footer {
    background: #141414;
    color: #A0A0A0;
    padding: 70px 0 30px;
    border-top: 3px solid var(--primary-red);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 100%;
    background-image: url('assets/red_apricot_bg.jpg');
    background-size: cover;
    opacity: 0.05;
    pointer-events: none;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
}

.footer-brand .logo-title {
    color: #FFFFFF;
}

.footer-desc {
    margin-top: 16px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: #888888;
}

.footer-title {
    font-family: var(--font-serif);
    color: #FFFFFF;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #888888;
    font-size: 0.9rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #262626;
    font-size: 0.85rem;
    color: #666666;
    position: relative;
    z-index: 1;
}

/* 响应式适配 Responsive */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }
    .hero-bg-wrapper {
        width: 100%;
        opacity: 0.2;
    }
    .advantages-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .node-grid, .pricing-grid, .knowledge-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .navbar-inner {
        height: 66px;
    }
    .nav-menu {
        display: none;
        position.absolute;
        top: 66px;
        left: 0;
        width: 100%;
        background: rgba(250, 247, 242, 0.98);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
    }
    .nav-menu.active {
        display: flex;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .advantages-grid, .node-grid, .pricing-grid, .reviews-grid, .knowledge-grid {
        grid-template-columns: 1fr;
    }
    .price-card.featured {
        transform: none;
    }
    .price-card.featured:hover {
        transform: translateY(-6px);
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .full-article-box {
        padding: 24px;
    }
    .article-cta-box {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}