/* =========================================
               1. 基础视觉系统 (Design System)
               ========================================= */
:root {
    --primary-green: #3D7D56;
    --primary-blue: #1A3A59;
    --night-blue: #2C3E50;
    --calm-lavender: #F4F7F9;
    --accent-gold: #D4AF37;
    --text-main: #2C3E50;
    --text-sub: #606F7B;
    --font-serif: "Georgia", "Times New Roman", "Songti SC", serif;
    --shadow-soft: 0 20px 40px rgba(0,0,0,0.05);
    --shadow-hover: 0 25px 50px rgba(0,0,0,0.12);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: "Microsoft YaHei", sans-serif; }
body { background-color: #fff; color: var(--text-main); line-height: 1.7; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; padding: 0; margin: 0; }
button { font-family: inherit; }

/* =========================================
3. 页面内容
========================================= */
.page-wrapper { padding-top: 70px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; position: relative; }

/* Hero: 睡眠意境 */
.sleep-hero {
    /* 背景图：一张深色、静谧、有微光的夜间图片 */
    background: linear-gradient(to bottom, rgba(15, 32, 53, 0.8), rgba(26, 58, 89, 0.8));
    background-size: cover;
    background-position: center;
    background-blend-mode: multiply;
    height: 550px;
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.sleep-hero::after {
    content: ''; position: absolute; bottom: -50px; left: 0; width: 100%; height: 100px;
    background: linear-gradient(to top, #fff, transparent); z-index: 1;
}
.hero-tag {
    background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(5px); border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--accent-gold); padding: 6px 20px; border-radius: 30px; font-weight: bold; font-size: 0.85rem; letter-spacing: 2px; margin-bottom: 25px;
    text-transform: uppercase;
}
.hero-title {
    font-family: var(--font-serif); font-size: 3.8rem; margin-bottom: 20px; font-weight: normal; letter-spacing: 1px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}
.hero-sub {
    font-size: 1.2rem; max-width: 600px; opacity: 0.9; font-weight: 300; line-height: 1.6; margin-bottom: 40px; letter-spacing: 0.5px;
}

/* 引言装饰 */
.hero-quote {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.2rem;
    color: rgba(255,255,255,0.9);
    border-top: 1px solid rgba(255,255,255,0.3);
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding: 15px 40px;
    display: inline-block;
    margin-top: 20px;
}

/* 通用板块标题 */
.section-head { text-align: center; margin-bottom: 70px; position: relative; z-index: 1; }
.section-label { font-size: 0.8rem; color: var(--accent-gold); font-weight: bold; letter-spacing: 2px; display: block; margin-bottom: 10px; text-transform: uppercase; }
.section-title { font-family: var(--font-serif); font-size: 2.5rem; color: var(--primary-blue); margin-bottom: 15px; }
.section-desc { color: var(--text-sub); font-size: 1.1rem; max-width: 700px; margin: 0 auto; line-height: 1.8; }

/* --- 嵌入式文章通用样式 (图上文下) --- */
.section-articles { margin-top: 60px; padding-top: 40px; border-top: 1px dashed rgba(0,0,0,0.1); }
.article-mini-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; }

.article-mini-title {
    font-size: 1.1rem; font-weight: bold; color: var(--primary-green);
    text-transform: uppercase; letter-spacing: 1px;
    border-left: 3px solid var(--primary-green); padding-left: 10px;
}

.view-all-btn {
    font-size: 0.9rem; color: var(--text-sub); font-weight: bold;
    cursor: pointer; transition: 0.3s; text-decoration: none;
}
.view-all-btn:hover { color: var(--primary-blue); text-decoration: underline; }

.mini-article-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

/* 卡片样式：上图下文 */
.mini-article {
    display: flex; flex-direction: column; /* 垂直排列 */
    background: #fff; border-radius: 8px; overflow: hidden;
    border: 1px solid #eee; transition: 0.3s; text-decoration: none;
    height: auto;
}
.mini-article:hover {
    box-shadow: 0 10px 25px rgba(0,0,0,0.08); border-color: var(--accent-gold);
    transform: translateY(-5px);
}
.mini-art-img {
    width: 100%; height: 180px; /* 图片高度 */
    background-color: #f0f0f0;
    background-size: cover; background-position: center;
}
.mini-art-content {
    padding: 20px; flex: 1; display: flex; flex-direction: column; justify-content: flex-start;
}
.mini-art-title {
    font-size: 1.05rem; font-weight: bold; color: var(--text-main);
    margin-bottom: 8px; line-height: 1.4;
    overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.mini-art-meta { font-size: 0.75rem; color: #999; text-transform: uppercase; letter-spacing: 0.5px; margin-top: auto; }

/* 1. 学术视角 */
.academic-section { padding: 100px 20px; background: #fff; position: relative; overflow: hidden; }
.academic-section::before { content: 'SCIENCE'; position: absolute; top: 40px; left: 50%; transform: translateX(-50%); font-size: 8rem; color: #f7f9fc; font-weight: bold; z-index: 0; pointer-events: none; font-family: var(--font-serif); }
.science-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; position: relative; z-index: 1; }
.science-card { background: white; border-radius: 12px; padding: 40px 30px; text-align: center; box-shadow: var(--shadow-soft); border: 1px solid #f0f0f0; transition: 0.4s; }
.science-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-hover); border-color: var(--primary-green); }
.sci-icon-box { width: 70px; height: 70px; background: #F0F7F4; border-radius: 50%; margin: 0 auto 25px; display: flex; align-items: center; justify-content: center; font-size: 2rem; color: var(--primary-green); }
.sci-title { font-size: 1.2rem; font-weight: bold; color: var(--primary-blue); margin-bottom: 15px; }
.sci-desc { font-size: 0.95rem; color: var(--text-sub); line-height: 1.6; }

/* 2. 穴位智慧 */
.acupoint-section { padding: 100px 20px; background: var(--night-blue); color: white; position: relative; }
.acupoint-container { display: flex; gap: 60px; max-width: 1100px; margin: 0 auto; align-items: center; }
.body-map-visual { flex: 1; height: 450px; background: rgba(255,255,255,0.05); border-radius: 12px; border: 1px solid rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.body-map-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0.6; background: url('https://images.unsplash.com/photo-1544367563-12123d8965cd?q=80&w=2670&auto=format&fit=crop') center/cover; }
.body-label { position: relative; z-index: 2; font-family: var(--font-serif); font-size: 1.5rem; color: var(--accent-gold); letter-spacing: 2px; }
.point-list { flex: 1; display: flex; flex-direction: column; gap: 35px; }
.point-item { display: flex; gap: 20px; }
.point-idx { font-size: 2.5rem; font-weight: bold; color: rgba(255,255,255,0.1); line-height: 1; font-family: var(--font-serif); }
.point-detail h3 { font-size: 1.3rem; color: var(--accent-gold); margin-bottom: 5px; }
.point-detail span { font-size: 0.85rem; color: rgba(255,255,255,0.5); display: block; margin-bottom: 10px; font-family: monospace; }
.point-detail p { font-size: 0.95rem; color: rgba(255,255,255,0.8); line-height: 1.6; }

/* 穴位板块的文章样式适配 */
.acupoint-section .section-articles { border-top-color: rgba(255,255,255,0.1); }
.acupoint-section .article-mini-title { color: var(--accent-gold); border-left-color: var(--accent-gold); }
.acupoint-section .view-all-btn { color: rgba(255,255,255,0.6); }
.acupoint-section .view-all-btn:hover { color: white; }
.acupoint-section .mini-article { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.1); }
.acupoint-section .mini-article:hover { background: rgba(255,255,255,0.1); border-color: var(--accent-gold); }
.acupoint-section .mini-art-title { color: white; }
.acupoint-section .mini-art-meta { color: rgba(255,255,255,0.5); }

/* 3. 技艺与实践 */
.tech-section { padding: 100px 20px; background: var(--calm-lavender); }
.solution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: 1100px; margin: 0 auto; }
.sol-card { background: white; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-soft); transition: 0.3s; display: flex; flex-direction: column; }
.sol-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.sol-header { height: 200px; background-size: cover; background-position: center; position: relative; }
.sol-tag { position: absolute; top: 20px; left: 20px; color: white; padding: 6px 15px; font-size: 0.75rem; font-weight: bold; border-radius: 4px; text-transform: uppercase; letter-spacing: 1px; backdrop-filter: blur(4px); }
.tag-pro { background: rgba(26, 58, 89, 0.9); }
.tag-home { background: rgba(61, 125, 86, 0.9); }
.sol-content { padding: 35px; flex: 1; display: flex; flex-direction: column; }
.sol-title { font-family: var(--font-serif); font-size: 1.6rem; color: var(--primary-blue); margin-bottom: 10px; }
.sol-desc { font-size: 1rem; color: var(--text-sub); margin-bottom: 20px; line-height: 1.6; }
.sol-features { margin-top: auto; padding-top: 20px; border-top: 1px dashed #eee; display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.feature-item span { display: block; font-size: 0.75rem; color: #999; margin-bottom: 2px; }
.feature-item strong { font-size: 0.9rem; color: #333; }

/* 古籍考证 (Classics) */
.classics-section { padding: 100px 20px; background: var(--paper-bg); border-top: 1px solid #eee; }
.classics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; max-width: 1100px; margin: 0 auto; }
.classic-card {
    background: transparent; border: 1px solid #D4AF37; padding: 40px 30px; border-radius: 8px;
    position: relative; transition: 0.3s; display: flex; flex-direction: column;
}
.classic-card:hover { background: #fff; box-shadow: 0 15px 30px rgba(212,175,55,0.15); }
.classic-vertical-text {
    writing-mode: vertical-rl; text-orientation: upright; letter-spacing: 6px;
    font-family: "Kaiti", "STKaiti", "SimSun", serif; font-size: 1.6rem; color: #333; font-weight: bold;
    height: 200px; margin: 0 auto 30px; line-height: 2; opacity: 0.8; border-left: 1px solid rgba(0,0,0,0.05);
}
.classic-meta { margin-top: auto; border-top: 1px solid #ddd; padding-top: 15px; text-align: left; }
.classic-source { font-family: var(--font-serif); font-weight: bold; color: var(--primary-blue); font-size: 1.1rem; margin-bottom: 10px; display: block; }
.classic-desc { font-size: 0.85rem; color: #555; line-height: 1.6; margin-bottom: 15px; font-style: italic; }
.classic-interpretation {
    background: rgba(61, 125, 86, 0.05); padding: 10px; border-radius: 4px;
    font-size: 0.85rem; color: var(--primary-green); line-height: 1.5;
}
.interp-label { font-weight: bold; font-size: 0.75rem; display: block; margin-bottom: 3px; text-transform: uppercase; opacity: 0.8; }

@media (max-width: 1024px) {
    .science-grid { grid-template-columns: 1fr; gap: 20px; }
    .acupoint-container { flex-direction: column; }
    .body-map-visual { width: 100%; height: 300px; }
    .solution-grid { grid-template-columns: 1fr; }
    .article-grid, .mini-article-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .sleep-hero h1 { font-size: 1.5rem; }
    .section-title { font-size: 1.2rem; }
    .article-grid, .mini-article-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .hamburger { display: flex; }
    .art-img-wrapper { height: 260px; }
}
img{width: 100%;height: 100%;}
.section-more-container {
    text-align: center;
    margin-top: 50px;
}
.section-more-btn {
    display: inline-block;
    padding: 10px 30px;
    background: transparent;
    border: 1px solid #ddd;
    border-radius: 25px;
    color: #666;
    font-size: 0.9rem;
    font-weight: bold;
    transition: all 0.3s
    ease;
    text-decoration: none;
}
.section-more-btn:hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
    background-color: rgba(61, 125, 86, 0.05);
    transform: translateY(-2px);
}