/* 方案 5｜原木抹茶（禅意新中式）方案 */
:root {
    --color-paper: #A8BBA2; /* 抹茶青 - 主背景（取自墙面与榻榻米） */
    --color-porcelain: #F2EFE8; /* 坐垫白 - 卡片、内容区背景（取自坐垫与画轴） */
    --color-primary: #B88A5D; /* 原木褐 - 主按钮、强调色、CTA（取自实木家具） */
    --color-primary-hover: #9C734B; /* 原木褐暗部 - 按钮悬停 */
    --color-ink-dark: #362C24; /* 深木色 - 标题、主文字（取自画轴木杆） */
    --color-ink-light: #7A6A5E; /* 浅木色 - 次要文字、副标题 */
    --color-accent: #6B876B; /* 深茶绿 - 细节点缀、小标签（取自茶壶） */
    --color-secondary-bg: #D1C0AA; /* 浅竹色 - 分割线、底纹、边框（取自浅色木纹） */
    
    --font-heading: 'Noto Serif SC', serif;
    --font-body: 'Noto Sans SC', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--color-paper);
    color: var(--color-ink-dark);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(168, 187, 162, 0.85); /* 抹茶青半透明 */
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid rgba(209, 192, 170, 0.6); /* 浅竹色半透 */
}

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

.logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-ink-dark);
    letter-spacing: 2px;
}

.logo-sub {
    font-size: 10px;
    color: var(--color-ink-light);
    letter-spacing: 1px;
    text-transform: uppercase;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: var(--font-body);
    transition: all 0.3s ease;
}

.cta-btn-nav {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    padding: 8px 20px;
    border-radius: 2px;
    font-size: 14px;
    letter-spacing: 1px;
}

.cta-btn-nav:hover {
    background-color: var(--color-primary);
    color: var(--color-porcelain);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--color-ink-light);
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

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

/* 首屏 Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
    position: relative;
    background: radial-gradient(circle at top center, rgba(242, 239, 232, 0.5) 0%, var(--color-paper) 100%);
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 30px;
    color: var(--color-ink-dark);
    letter-spacing: 2px;
}

.hero-title .highlight {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-ink-dark); /* 加深首屏副标题以防看不清 */
    margin-bottom: 50px;
    letter-spacing: 1px;
}

.cta-btn-main {
    background-color: var(--color-primary);
    color: var(--color-porcelain);
    padding: 16px 40px;
    font-size: 18px;
    border-radius: 2px;
    letter-spacing: 2px;
    box-shadow: 0 10px 30px rgba(184, 138, 93, 0.2); /* 原木褐阴影 */
}

.cta-btn-main:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(184, 138, 93, 0.3);
}

/* 痛点区 */
.pain-points {
    padding: 120px 10%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    background-color: var(--color-porcelain);
    border-top: 1px solid var(--color-secondary-bg);
    border-bottom: 1px solid var(--color-secondary-bg);
}

.pain-column {
    flex: 1;
    text-align: center;
    max-width: 400px;
}

.pain-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 24px;
    color: var(--color-primary);
}

.pain-text {
    font-size: 20px;
    font-family: var(--font-heading);
    color: var(--color-ink-dark);
    line-height: 1.8;
}

.divider {
    width: 1px;
    height: 100px;
    background-color: var(--color-secondary-bg);
}

/* 解决方案区 */
.solutions {
    padding: 120px 10%;
}

.section-title {
    text-align: center;
    font-family: var(--font-heading);
    font-size: 36px;
    color: var(--color-ink-dark);
    margin-bottom: 80px;
    letter-spacing: 2px;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background-color: var(--color-porcelain);
    flex: 1;
    min-width: 320px;
    max-width: 500px;
    padding: 50px 40px;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-secondary-bg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(54, 44, 36, 0.05); /* 深木色微弱阴影 */
    border-color: rgba(184, 138, 93, 0.3);
}

.card-badge {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--color-primary);
    color: #fff;
    font-size: 13px;
    border-radius: 4px;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 24px;
    color: var(--color-ink-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

.poetic-quote {
    font-family: "STKaiti", "KaiTi", serif;
    font-size: 18px;
    color: var(--color-primary);
    margin-bottom: 20px;
    line-height: 1.5;
    font-style: italic;
    opacity: 0.9;
}

.card-desc {
    color: var(--color-ink-light);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 30px;
    flex-grow: 1;
}

.cta-btn-card {
    display: inline-flex;
    align-items: center;
    margin-top: 24px;
    color: var(--color-primary);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.cta-btn-card .arrow {
    margin-left: 6px;
    transition: transform 0.3s ease;
}

.cta-btn-card:hover {
    color: var(--color-primary-hover);
}

.cta-btn-card:hover .arrow {
    transform: translateX(6px);
}

/* 信任背书区（真实案例沟通区） */
.trust {
    padding: 100px 10%;
    background-color: var(--color-porcelain);
    border-top: 1px solid var(--color-secondary-bg);
}

.trust-banner-container {
    text-align: center;
    margin-bottom: 60px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.trust-banner {
    max-width: 100%;
    height: auto;
    border-radius: 4px; /* 减小圆角，让书法横幅显得更像一幅画轴 */
    box-shadow: 0 10px 30px rgba(54, 44, 36, 0.2);
    display: block;
    margin: 0 auto;
    border: 2px solid var(--color-porcelain); /* 添加细白边框，增加画框质感 */
    filter: sepia(0.2) saturate(0.9) opacity(0.95); /* 微调色调使其更融于禅意背景 */
}

.fallback-title {
    color: var(--color-ink-dark);
}

.trust-content {
    display: flex;
    justify-content: center;
    max-width: 1000px;
    margin: 0 auto;
}

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

.founder-avatar {
    width: 160px;
    height: 160px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--color-porcelain);
    box-shadow: 0 15px 30px rgba(54, 44, 36, 0.08);
    margin: 0 auto 20px;
    display: block;
    background-color: var(--color-porcelain);
}

.founder-desc h3 {
    font-family: var(--font-heading);
    color: var(--color-ink-dark);
    margin-bottom: 10px;
}

.founder-desc p {
    color: var(--color-ink-light);
    font-size: 14px;
    line-height: 1.8;
}

/* 留资表单区 */
.lead-capture {
    padding: 120px 20px;
    display: flex;
    justify-content: center;
    background-color: var(--color-paper);
}

.form-container {
    background-color: var(--color-porcelain);
    padding: 60px;
    border-radius: 4px;
    max-width: 600px;
    width: 100%;
    border: 1px solid var(--color-secondary-bg);
    box-shadow: 0 30px 60px rgba(54, 44, 36, 0.08);
}

.form-title {
    font-family: var(--font-heading);
    font-size: 32px;
    color: var(--color-ink-dark);
    margin-bottom: 10px;
    text-align: center;
}

.form-subtitle {
    text-align: center;
    color: var(--color-ink-light);
    margin-bottom: 40px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--color-ink-dark);
    font-size: 14px;
    letter-spacing: 1px;
}

.required {
    color: var(--color-primary);
}

input[type="text"] {
    width: 100%;
    padding: 15px;
    background-color: var(--color-paper);
    border: 1px solid var(--color-secondary-bg);
    color: var(--color-ink-dark);
    font-size: 16px;
    border-radius: 2px;
    transition: border-color 0.3s;
}

input[type="text"]::placeholder {
    color: var(--color-ink-light);
    opacity: 0.6;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: #FFFFFF;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    background: var(--color-paper);
    padding: 15px;
    border: 1px solid var(--color-secondary-bg);
    border-radius: 2px;
    transition: all 0.3s;
    color: var(--color-ink-dark);
}

.radio-label:hover {
    border-color: rgba(184, 138, 93, 0.4);
    background-color: #FFFFFF;
}

.radio-label input {
    margin-right: 15px;
    accent-color: var(--color-primary);
}

.cta-btn-submit {
    width: 100%;
    background-color: var(--color-primary);
    color: var(--color-porcelain);
    padding: 18px;
    font-size: 18px;
    margin-top: 20px;
    border-radius: 2px;
    letter-spacing: 2px;
    transition: all 0.3s ease;
}

.cta-btn-submit:hover {
    background-color: var(--color-primary-hover);
    box-shadow: 0 10px 20px rgba(184, 138, 93, 0.2);
}

/* 移动端底部按钮 */
.mobile-bottom-bar {
    display: none;
    position: fixed;
    bottom: 0;
    width: 100%;
    background: rgba(168, 187, 162, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 20px;
    border-top: 1px solid var(--color-secondary-bg);
    z-index: 100;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.05);
}

.cta-btn-mobile {
    width: 100%;
    background-color: var(--color-primary);
    color: var(--color-porcelain);
    padding: 15px;
    font-size: 16px;
    border-radius: 2px;
    letter-spacing: 1px;
}

/* 弹窗 */
.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background-color: var(--color-primary);
    color: #FFFFFF;
    padding: 20px 30px;
    border-radius: 4px;
    box-shadow: 0 20px 40px rgba(184, 138, 93, 0.3);
    font-weight: 500;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    max-width: 80%;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.toast-error {
    background-color: #A85A4F !important;
    box-shadow: 0 20px 40px rgba(168, 90, 79, 0.3) !important;
}

.cta-btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* 动画与响应式 */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 作品集与详情页排版 */
.details-page, .article-page {
    padding: 120px 20px 80px;
    display: flex;
    justify-content: center;
    min-height: 100vh;
}

.details-container, .article-container {
    max-width: 800px;
    width: 100%;
    background: var(--color-porcelain);
    padding: 60px;
    border-radius: 4px;
    border: 1px solid var(--color-secondary-bg);
    box-shadow: 0 20px 50px rgba(54, 44, 36, 0.05);
}

.intro-section {
    text-align: center;
    margin-bottom: 60px;
}

.details-title {
    font-family: var(--font-heading);
    font-size: 36px;
    color: var(--color-ink-dark);
    margin-bottom: 24px;
    letter-spacing: 2px;
}

.details-intro {
    color: var(--color-ink-light);
    font-size: 16px;
    line-height: 2;
    max-width: 600px;
    margin: 0 auto;
}

.section-divider {
    text-align: center;
    position: relative;
    margin: 60px 0 40px;
}

.section-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-secondary-bg);
    z-index: 1;
}

.section-divider span {
    position: relative;
    z-index: 2;
    background: var(--color-porcelain);
    padding: 0 20px;
    color: var(--color-accent);
    font-size: 14px;
    letter-spacing: 2px;
}

/* 作品集卡片 */
.portfolio-item {
    background: #fff;
    border: 1px solid var(--color-secondary-bg);
    padding: 40px;
    border-radius: 4px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    box-shadow: 0 15px 30px rgba(54, 44, 36, 0.05);
    border-color: rgba(184, 138, 93, 0.4);
    transform: translateY(-3px);
}

.portfolio-title {
    font-family: var(--font-heading);
    font-size: 22px;
    color: var(--color-ink-dark);
    margin-bottom: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.portfolio-desc {
    color: var(--color-ink-light);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.back-link-wrapper {
    text-align: center;
    margin-top: 40px;
}

/* 第三级文章详情排版 */
.article-header {
    text-align: center;
    border-bottom: 1px solid var(--color-secondary-bg);
    padding-bottom: 30px;
    margin-bottom: 40px;
}

.article-title {
    font-family: var(--font-heading);
    font-size: 32px;
    color: var(--color-ink-dark);
    line-height: 1.4;
    margin-bottom: 16px;
}

.article-meta {
    font-size: 13px;
    color: var(--color-accent);
    letter-spacing: 1px;
}

.article-body p {
    margin-bottom: 24px;
    color: var(--color-ink-light);
    font-size: 16px;
    line-height: 2;
    text-align: justify;
}

.article-body h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    color: var(--color-ink-dark);
    margin: 40px 0 20px;
}

.wechat-consult {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
    margin: 48px 0 0;
    padding: 16px 24px;
    border: 1px solid var(--color-primary);
    border-radius: 8px;
    background: rgba(184, 138, 93, 0.06);
    letter-spacing: 1px;
}

.article-footer {
    margin-top: 60px;
    border-top: 1px solid var(--color-secondary-bg);
    padding-top: 30px;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .cards-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cards-container {
        grid-template-columns: 1fr;
    }
    
    .trust-content {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }
    
    .founder-info {
        width: 100%;
    }

    .hero-title { font-size: 32px; }
    .hero-subtitle { font-size: 15px; }
    .pain-points { flex-direction: column; gap: 40px; padding: 80px 20px; }
    .divider { width: 100px; height: 1px; }
    .form-container { padding: 40px 20px; }
    .mobile-bottom-bar { display: block; }
    .navbar .cta-btn-nav { display: none; }
    body { padding-bottom: 70px; }
    .portfolio-title { font-size: 18px; }
}