/* ============================================
   搜呀小记 - 主样式表
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
    --color-primary: #c4956a;
    --color-primary-light: #d4a574;
    --color-primary-dark: #a87a4e;
    --color-bg: #fdfaf6;
    --color-bg-alt: #f5f0e8;
    --color-bg-card: #ffffff;
    --color-text: #2c2416;
    --color-text-light: #6b5d4f;
    --color-text-muted: #9b8c7d;
    --color-border: #e8ddd0;
    --color-accent: #e07b5a;

    --font-serif: 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
    --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;

    --shadow-sm: 0 1px 3px rgba(44, 36, 22, 0.06);
    --shadow-md: 0 4px 16px rgba(44, 36, 22, 0.08);
    --shadow-lg: 0 8px 32px rgba(44, 36, 22, 0.1);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --max-width: 1100px;
    --header-height: 64px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.25s ease;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Header / Navigation ---------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(253, 250, 246, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    letter-spacing: 0.5px;
    transition: color 0.25s ease;
}

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

.nav-list {
    display: flex;
    gap: 4px;
}

.nav-link {
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-light);
    transition: all 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary-dark);
    background: rgba(196, 149, 106, 0.1);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero Section ---------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: calc(var(--header-height) + 40px) 0 80px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-greeting {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--color-primary);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 12px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: 8px;
    line-height: 1.6;
}

.hero-desc {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 28px;
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-sans);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(164, 122, 78, 0.3);
}

/* Hero 视觉元素 */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-blob {
    position: absolute;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(212, 165, 116, 0.15) 0%, rgba(212, 165, 116, 0.05) 50%, transparent 70%);
    border-radius: 50%;
    filter: blur(40px);
    animation: blobFloat 8s ease-in-out infinite alternate;
}

@keyframes blobFloat {
    0% { transform: translateY(0) scale(1); }
    100% { transform: translateY(-20px) scale(1.08); }
}

.hero-illustration {
    position: relative;
    z-index: 1;
    width: 320px;
}

.hero-illustration svg {
    width: 100%;
    height: auto;
}

/* 向下滚动提示 */
.scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    animation: bounceDown 2s ease-in-out infinite;
}

@keyframes bounceDown {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ---------- Section Common ---------- */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-primary);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
    padding: 4px 14px;
    background: rgba(196, 149, 106, 0.1);
    border-radius: 20px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.section-desc {
    color: var(--color-text-muted);
    font-size: 1rem;
}

/* ---------- Articles Section ---------- */
.articles {
    background: var(--color-bg-alt);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.35s ease;
    cursor: pointer;
}

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

.article-card-image {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.article-card-image svg {
    width: 80px;
    height: auto;
    opacity: 0.7;
}

.article-card-body {
    padding: 20px 24px 24px;
}

.article-category {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.article-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
    line-height: 1.5;
}

.article-excerpt {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.82rem;
    color: var(--color-text-muted);
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}

.article-read {
    color: var(--color-primary);
    font-weight: 500;
    transition: transform 0.2s ease;
}

.article-card:hover .article-read {
    transform: translateX(4px);
}

/* ---------- Hobbies Section ---------- */
.hobbies {
    background: var(--color-bg);
}

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

.hobby-card {
    text-align: center;
    padding: 40px 20px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.35s ease;
}

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

.hobby-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(196, 149, 106, 0.1);
    color: var(--color-primary);
    margin-bottom: 20px;
    transition: all 0.35s ease;
}

.hobby-card:hover .hobby-icon {
    background: var(--color-primary);
    color: #fff;
    transform: scale(1.05);
}

.hobby-card h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.hobby-card p {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ---------- About Section ---------- */
.about {
    background: var(--color-bg-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 80px;
    align-items: center;
}

.about-text .section-tag {
    margin-bottom: 16px;
}

.about-text .section-title {
    margin-bottom: 20px;
}

.about-text p {
    color: var(--color-text-light);
    font-size: 0.98rem;
    line-height: 1.8;
    margin-bottom: 12px;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* About Visual */
.about-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.about-avatar {
    width: 140px;
    height: 140px;
}

.about-avatar svg {
    width: 100%;
    height: 100%;
}

.about-quote {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--color-primary);
    font-style: italic;
    letter-spacing: 1px;
}

/* ---------- Footer ---------- */
.footer {
    background: var(--color-text);
    color: var(--color-bg-alt);
    padding: 48px 0 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    flex-shrink: 0;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}

.footer-brand p {
    margin-top: 8px;
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.footer-col a {
    display: block;
    font-size: 0.88rem;
    color: var(--color-text-muted);
    padding: 4px 0;
    transition: color 0.25s ease;
}

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

/* Footer 底部 - 版权/备案号 */
.footer-bottom {
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.copyright {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin: 0;
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 0;
    font-size: 0.82rem;
}

.footer-legal a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.25s ease;
}

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

.footer-divider {
    color: var(--color-border);
    user-select: none;
}.icp-link {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    transition: color 0.25s ease;
    text-decoration: none;
}

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

/* ---------- Entrance Animations ---------- */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Stagger children in grids */
.articles-grid.fade-in-up .article-card,
.hobbies-grid.fade-in-up .hobby-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.articles-grid.fade-in-up.visible .article-card,
.hobbies-grid.fade-in-up.visible .hobby-card {
    opacity: 1;
    transform: translateY(0);
}

.articles-grid.visible .article-card:nth-child(1),
.hobbies-grid.visible .hobby-card:nth-child(1) {
    transition-delay: 0.05s;
}
.articles-grid.visible .article-card:nth-child(2),
.hobbies-grid.visible .hobby-card:nth-child(2) {
    transition-delay: 0.15s;
}
.articles-grid.visible .article-card:nth-child(3),
.hobbies-grid.visible .hobby-card:nth-child(3) {
    transition-delay: 0.25s;
}
.hobbies-grid.visible .hobby-card:nth-child(4) {
    transition-delay: 0.35s;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }

    section {
        padding: 70px 0;
    }

    /* 移动端导航 */
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-bg-card);
        padding: 100px 32px 40px;
        box-shadow: var(--shadow-lg);
        transition: right 0.35s ease;
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 8px;
    }

    .nav-link {
        padding: 12px 20px;
        font-size: 1.05rem;
    }

    .menu-toggle {
        display: flex;
    }

    /* Hero */
    .hero .container {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-visual {
        order: -1;
    }

    .hero-illustration {
        width: 240px;
    }

    .hero-blob {
        width: 260px;
        height: 260px;
    }

    /* Articles */
    .articles-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    /* About */
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

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

    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: 32px;
    }

    .footer-links {
        gap: 40px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.7rem;
    }

    .hobbies-grid {
        grid-template-columns: 1fr;
        max-width: 300px;
        margin: 0 auto;
    }

    .footer-links {
        flex-direction: column;
        gap: 24px;
    }
}

/* ---------- Print ---------- */
@media print {
    .header,
    .menu-toggle,
    .scroll-hint {
        display: none;
    }

    .hero {
        min-height: auto;
    }
}