/* ================================
   悦音空间 - 可爱女性风格样式表
   ================================ */

/* --- 全局变量 --- */
:root {
    --color-primary: #ff6b9d;
    --color-primary-light: #ffa6c1;
    --color-primary-dark: #e85a8a;
    --color-secondary: #c084fc;
    --color-secondary-light: #e9d5ff;
    --color-accent: #fbbf24;
    --color-pink-50: #fff0f5;
    --color-pink-100: #ffe4ec;
    --color-pink-200: #ffc8dd;
    --color-bg: #fffafb;
    --color-bg-alt: #fff0f5;
    --color-text: #5a4a5a;
    --color-text-light: #8b7a8b;
    --color-white: #ffffff;
    --color-border: #ffd6e6;
    --shadow-sm: 0 2px 8px rgba(255, 107, 157, 0.1);
    --shadow-md: 0 4px 16px rgba(255, 107, 157, 0.15);
    --shadow-lg: 0 8px 32px rgba(255, 107, 157, 0.2);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-full: 50%;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(255, 182, 193, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(230, 190, 255, 0.25) 0%, transparent 50%);
    background-attachment: fixed;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.section-alt {
    background: var(--color-bg-alt);
}

/* --- 顶部装饰 --- */
.top-decoration {
    height: 6px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-secondary), var(--color-accent), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    position: relative;
}

.top-decoration span {
    font-size: 14px;
    opacity: 0.7;
}

.deco-heart {
    color: var(--color-primary);
    animation: heartbeat 1.5s ease-in-out infinite;
}

.deco-star {
    color: var(--color-accent);
    animation: twinkle 2s ease-in-out infinite;
}

/* --- 导航栏 --- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 28px;
    animation: rotate 4s linear infinite;
}

.logo-text {
    font-family: 'ZCOOL KuaiLe', 'Ma Shan Zheng', cursive, sans-serif;
    font-size: 24px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    display: inline-block;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-light);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background: var(--color-pink-100);
}

.nav-link.active::after {
    content: '♡';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 10px;
    color: var(--color-primary);
}

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

.menu-toggle span {
    width: 24px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* --- 首页横幅 --- */
.hero {
    position: relative;
    min-height: 680px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(180deg, var(--color-pink-100) 0%, var(--color-pink-50) 70%, #fff0f5 100%);
}

.hero-bg-decorations {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-heart {
    position: absolute;
    font-size: 28px;
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

.floating-heart.h1 { top: 15%; left: 8%; color: var(--color-primary); animation-delay: 0s; }
.floating-heart.h2 { top: 25%; right: 12%; color: var(--color-secondary); animation-delay: 1s; font-size: 36px; }
.floating-heart.h3 { top: 60%; left: 5%; color: var(--color-accent); animation-delay: 2s; }
.floating-heart.h4 { top: 70%; right: 8%; color: var(--color-primary-light); animation-delay: 3s; font-size: 32px; }
.floating-heart.h5 { top: 40%; left: 90%; color: var(--color-secondary-light); animation-delay: 1.5s; font-size: 40px; }

.hero-content {
    position: relative;
    z-index: 10;
    padding: 60px 24px;
    max-width: 800px;
}

.hero-avatar {
    margin-bottom: 32px;
    display: flex;
    justify-content: center;
}

.avatar-ring {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary-light));
    padding: 6px;
    animation: pulse-ring 3s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
}

.avatar-inner {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-emoji {
    font-size: 72px;
}

.hero-title {
    margin-bottom: 16px;
}

.title-line1 {
    display: block;
    font-family: 'ZCOOL KuaiLe', 'Ma Shan Zheng', cursive, sans-serif;
    font-size: 64px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    animation: fadeInUp 0.8s ease-out;
}

.title-line2 {
    display: block;
    font-size: 24px;
    color: var(--color-text);
    font-weight: 500;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--color-primary-dark);
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-description {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: 0 4px 16px rgba(255, 107, 157, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255, 107, 157, 0.5);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary-light);
}

.btn-secondary:hover {
    background: var(--color-pink-100);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: 80px;
}

/* --- 通用区块标题 --- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: 'ZCOOL KuaiLe', 'Ma Shan Zheng', cursive, sans-serif;
    font-size: 40px;
    color: var(--color-text);
    margin-bottom: 12px;
    display: inline-flex;
    align-items: center;
    gap: 16px;
}

.title-deco-left,
.title-deco-right {
    font-size: 32px;
    animation: swing 2s ease-in-out infinite;
}

.title-deco-right {
    animation-delay: 1s;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-text-light);
}

/* --- 关于我 --- */
.about-content {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.about-card {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    align-items: center;
    background: var(--color-white);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 182, 193, 0.15) 0%, transparent 70%);
    border-radius: var(--radius-full);
}

.about-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.about-img-box {
    width: 260px;
    height: 260px;
    background: linear-gradient(135deg, var(--color-pink-200), var(--color-secondary-light));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: var(--shadow-md);
    transform: rotate(-3deg);
    transition: var(--transition);
}

.about-img-box:hover {
    transform: rotate(0deg) scale(1.03);
}

.about-emoji {
    font-size: 120px;
}

.about-img-decor {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.about-img-decor span {
    position: absolute;
    font-size: 24px;
    animation: twinkle 2s ease-in-out infinite;
}

.about-img-decor span:nth-child(1) { top: -10px; left: -10px; }
.about-img-decor span:nth-child(2) { top: -15px; right: 10px; animation-delay: 0.5s; }
.about-img-decor span:nth-child(3) { bottom: -10px; right: -5px; animation-delay: 1s; }

.about-text h3 {
    font-size: 28px;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.about-greeting {
    color: var(--color-secondary);
    font-size: 16px;
    margin-bottom: 24px;
}

.about-info {
    margin-bottom: 24px;
}

.about-info p {
    margin-bottom: 12px;
    padding-left: 4px;
}

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--color-pink-100);
    color: var(--color-primary-dark);
    border-radius: var(--radius-full);
    font-size: 14px;
    transition: var(--transition);
    cursor: default;
}

.tag:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

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

.stat-card {
    background: var(--color-white);
    padding: 32px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--color-border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.stat-card:hover::after {
    transform: scaleX(1);
}

.stat-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.stat-number {
    font-family: 'ZCOOL KuaiLe', cursive, sans-serif;
    font-size: 36px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.stat-label {
    color: var(--color-text-light);
    font-size: 14px;
}

/* --- 文章随笔 --- */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 48px;
}

.article-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.article-cover {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.cover-1 { background: linear-gradient(135deg, #fecdd3, #fde68a); }
.cover-2 { background: linear-gradient(135deg, #ddd6fe, #fbcfe8); }
.cover-3 { background: linear-gradient(135deg, #bae6fd, #c7d2fe); }
.cover-4 { background: linear-gradient(135deg, #fbcfe8, #ddd6fe); }
.cover-5 { background: linear-gradient(135deg, #fed7aa, #fecdd3); }
.cover-6 { background: linear-gradient(135deg, #c7d2fe, #a5f3fc); }

.cover-emoji {
    font-size: 72px;
    transition: var(--transition);
}

.article-card:hover .cover-emoji {
    transform: scale(1.15) rotate(5deg);
}

.article-body {
    padding: 24px;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 13px;
}

.meta-date {
    color: var(--color-text-light);
}

.meta-category {
    padding: 3px 12px;
    background: var(--color-pink-100);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-weight: 500;
}

.article-title {
    font-size: 18px;
    color: var(--color-text);
    margin-bottom: 10px;
    font-weight: 600;
    line-height: 1.5;
}

.article-excerpt {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-more {
    display: inline-block;
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 500;
    position: relative;
}

.article-more::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.article-more:hover::after {
    width: 100%;
}

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

/* --- 学习笔记 --- */
.notes-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.note-category {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.note-category:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.category-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    color: var(--color-text);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px dashed var(--color-border);
}

.category-icon {
    font-size: 28px;
}

.note-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.note-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.note-item:hover {
    background: var(--color-pink-50);
    transform: translateX(4px);
}

.note-dot {
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    margin-top: 8px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 4px var(--color-pink-100);
    transition: var(--transition);
}

.note-item:hover .note-dot {
    background: var(--color-secondary);
    box-shadow: 0 0 0 4px var(--color-secondary-light);
}

.note-info {
    flex: 1;
    min-width: 0;
}

.note-title {
    display: block;
    font-size: 15px;
    color: var(--color-text);
    font-weight: 500;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.note-date {
    font-size: 12px;
    color: var(--color-text-light);
}

/* --- 联系我 --- */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 32px;
}

.contact-card,
.contact-form-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.contact-info {
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px dashed var(--color-border);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-icon {
    width: 52px;
    height: 52px;
    background: var(--color-pink-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: 4px;
}

.contact-text p {
    font-size: 14px;
    color: var(--color-text-light);
}

.contact-social h4 {
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: 16px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 16px 8px;
    background: var(--color-pink-50);
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: 2px solid transparent;
}

.social-link:hover {
    background: var(--color-white);
    border-color: var(--color-primary-light);
    transform: translateY(-4px);
}

.social-link span {
    font-size: 28px;
}

.social-link small {
    font-size: 12px;
    color: var(--color-text-light);
}

.contact-form-card h3 {
    font-size: 22px;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--color-text);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-pink-50);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-white);
    box-shadow: 0 0 0 4px rgba(255, 107, 157, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* --- 回到顶部 --- */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* --- 页脚 --- */
.footer {
    background: linear-gradient(180deg, var(--color-pink-100) 0%, var(--color-pink-200) 100%);
    padding: 60px 0 32px;
    position: relative;
}

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

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.footer-logo-icon {
    font-size: 32px;
}

.footer-logo-text {
    font-family: 'ZCOOL KuaiLe', cursive, sans-serif;
    font-size: 28px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-slogan {
    font-size: 15px;
    color: var(--color-primary-dark);
    margin-bottom: 20px;
}

.footer-links {
    margin-bottom: 24px;
    font-size: 14px;
}

.footer-links a {
    color: var(--color-text-light);
    padding: 4px 8px;
}

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

.footer-sep {
    color: var(--color-primary-light);
    margin: 0 4px;
}

.footer-copyright {
    font-size: 13px;
    color: var(--color-text-light);
}

.footer-copyright p {
    margin-bottom: 6px;
}

.footer-icp a {
    color: var(--color-text-light);
}

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

.footer-decoration {
    text-align: center;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px dashed var(--color-primary-light);
    font-size: 20px;
    letter-spacing: 12px;
}

/* --- 动画关键帧 --- */
@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

@keyframes pulse-ring {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 157, 0.4); }
    50% { box-shadow: 0 0 0 15px rgba(255, 107, 157, 0); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes swing {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(15deg); }
}

/* --- 响应式设计 --- */
@media (max-width: 992px) {
    .about-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-tags {
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .notes-container {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 24px;
        gap: 4px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .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);
    }

    .section {
        padding: 64px 0;
    }

    .title-line1 {
        font-size: 44px;
    }

    .title-line2 {
        font-size: 18px;
    }

    .section-title {
        font-size: 28px;
        gap: 10px;
    }

    .title-deco-left,
    .title-deco-right {
        font-size: 22px;
    }

    .about-card {
        padding: 28px;
    }

    .about-img-box {
        width: 200px;
        height: 200px;
    }

    .about-emoji {
        font-size: 90px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .contact-card,
    .contact-form-card {
        padding: 28px;
    }

    .avatar-ring {
        width: 120px;
        height: 120px;
    }

    .avatar-emoji {
        font-size: 56px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .social-links {
        flex-wrap: wrap;
    }

    .social-link {
        flex: 1 1 calc(50% - 6px);
        min-width: calc(50% - 6px);
    }

    .section-title {
        font-size: 24px;
    }
}