/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #2196F3;
    --primary-blue-dark: #1976D2;
    --primary-blue-light: #64B5F6;
    --background: #F5F5F5;
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-tertiary: #9E9E9E;
    --white: #FFFFFF;
    --border-color: #E0E0E0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --glow: rgba(255, 255, 255, 0.3);
}

/* 深色模式 */
[data-theme="dark"] {
    --background: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --text-tertiary: #808080;
    --white: #2a2a2a;
    --border-color: #404040;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.4);
    --glow: rgba(255, 255, 255, 0.1);
}

/* 水波覆盖层样式 */
.theme-ripple-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 99999;
    /* 不使用 mix-blend-mode，避免影响图片 */
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Banner样式 - 毛玻璃效果 */
.banner {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px var(--shadow);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

[data-theme="dark"] .banner {
    background: rgba(26, 26, 26, 0.85);
    border-bottom: 1px solid rgba(64, 64, 64, 0.3);
}

.banner:not(.banner-no-animate) {
    animation: slideDown 0.6s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.banner-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.banner-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.banner-settings {
    position: relative;
}

.settings-btn {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.6rem;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

[data-theme="dark"] .settings-btn {
    background: rgba(42, 42, 42, 0.5);
    color: var(--text-secondary);
}

.settings-btn:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--text-secondary);
    color: var(--text-primary);
    transform: rotate(90deg);
}

[data-theme="dark"] .settings-btn:hover {
    background: rgba(42, 42, 42, 0.8);
    color: var(--text-primary);
}

.settings-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 0.5rem;
    box-shadow: 0 4px 20px var(--shadow);
    border: 1px solid var(--border-color);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

[data-theme="dark"] .settings-menu {
    background: rgba(42, 42, 42, 0.95);
    border-color: var(--border-color);
}

.settings-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.settings-item {
    padding: 0.8rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.settings-item:hover {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .settings-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 主题切换开关样式 */
.theme-toggle-switch {
    position: relative;
    width: 50px;
    height: 26px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
}

[data-theme="dark"] .theme-toggle-switch {
    background: rgba(255, 255, 255, 0.1);
}

.theme-toggle-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--text-primary);
    border-radius: 50%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.theme-toggle-slider::before {
    content: '\f0eb';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 10px;
    color: var(--background);
    transition: all 0.3s ease;
}

.theme-toggle-slider.active {
    transform: translateX(24px);
    background: #FFA500;
}

.theme-toggle-slider.active::before {
    content: '\f185';
    color: #FFFFFF;
}

.theme-toggle-switch:hover .theme-toggle-slider {
    transform: scale(1.1);
}

.theme-toggle-slider.active:hover {
    transform: translateX(24px) scale(1.1);
}

.banner-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 40px;
    width: auto;
    user-select: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
}

.site-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
}

.banner-nav {
    display: flex;
    align-items: center;
    gap: 0;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-separator {
    color: var(--border-color);
    padding: 0 0.5rem;
    user-select: none;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.05);
}

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

/* 主内容区域 */
.main-content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 4rem 2rem;
    min-height: calc(100vh - 200px);
    padding-bottom: 6rem;
}

.welcome-container {
    text-align: center;
    max-width: 800px;
    width: 100%;
}

.welcome-text {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 3rem;
    color: var(--text-primary);
    min-height: 80px;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(255, 255, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(255, 255, 255, 0.6), 0 0 30px rgba(255, 255, 255, 0.4);
    }
}

.welcome-text::after {
    content: '|';
    animation: blink 1s infinite;
    color: var(--text-primary);
    margin-left: 5px;
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

/* 一言容器 - 毛玻璃和高光边缘 */
.hitokoto-container {
    margin-top: 2rem;
    animation: fadeInUp 1s ease-out 0.5s both;
    position: relative;
}

.hitokoto-box {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px var(--shadow),
                0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .hitokoto-box {
    background: rgba(42, 42, 42, 0.7);
    box-shadow: 0 4px 20px var(--shadow),
                0 0 0 1px rgba(64, 64, 64, 0.5) inset;
}

.hitokoto-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glow), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.hitokoto-box:hover::before {
    opacity: 1;
}

.hitokoto-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--shadow-hover),
                0 0 0 1px rgba(255, 255, 255, 0.6) inset,
                0 0 20px rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.8);
}

[data-theme="dark"] .hitokoto-box:hover {
    background: rgba(42, 42, 42, 0.9);
    box-shadow: 0 12px 40px var(--shadow-hover),
                0 0 0 1px rgba(64, 64, 64, 0.6) inset;
}

.hitokoto-content {
    flex: 1;
    text-align: left;
}

.hitokoto-text {
    font-size: 1.3rem;
    line-height: 1.8;
    color: var(--text-primary);
    min-height: 60px;
    margin-bottom: 0.5rem;
}

.hitokoto-text::after {
    content: '|';
    animation: blink 1s infinite;
    color: var(--text-primary);
    margin-left: 3px;
}

.hitokoto-author {
    font-size: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 0.5rem;
}

.copy-btn {
    background: var(--text-primary);
    color: var(--white);
    border: none;
    border-radius: 10px;
    padding: 0.8rem 1.2rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
    box-shadow: 0 2px 10px var(--shadow);
    flex-shrink: 0;
}

.copy-btn:hover {
    background: var(--text-primary);
    color: var(--white);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px var(--shadow-hover);
    animation: float 2s ease-in-out infinite;
}

[data-theme="dark"] .copy-btn:hover {
    background: var(--white);
    color: var(--text-primary);
}

.copy-btn:hover i {
    animation: iconSpin 0.6s ease;
}

.copy-btn:not(:hover) i {
    transition: all 0.3s ease;
    transform: rotate(0deg);
}

@keyframes iconSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.copy-btn:active {
    transform: translateY(0) scale(0.95);
    box-shadow: 0 1px 5px var(--shadow);
}

.copy-tooltip {
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    white-space: nowrap;
    box-shadow: 0 4px 15px var(--shadow);
}

.copy-tooltip.show {
    opacity: 1;
    top: -60px;
    animation: tooltipBounce 0.5s ease;
}

@keyframes tooltipBounce {
    0% {
        transform: translateX(-50%) translateY(10px);
    }
    50% {
        transform: translateX(-50%) translateY(-5px);
    }
    100% {
        transform: translateX(-50%) translateY(0);
    }
}

/* Footer样式 - 毛玻璃效果 */
.footer {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 -2px 20px var(--shadow);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2.5rem 0;
    margin-top: auto;
    transition: all 0.3s ease;
}

[data-theme="dark"] .footer {
    background: rgba(26, 26, 26, 0.85);
    border-top: 1px solid rgba(64, 64, 64, 0.3);
}

.footer-copyright {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
}

.footer:not(.footer-no-animate) {
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-separator {
    color: var(--border-color);
    font-size: 1.5rem;
    user-select: none;
}

.footer-logo {
    height: 50px;
    width: auto;
    filter: grayscale(100%) opacity(0.6);
    transition: all 0.3s ease;
    user-select: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
}

.footer-logo:hover {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.05);
    animation: logoPulse 0.6s ease;
}

.footer-logo:not(:hover) {
    transition: all 0.3s ease;
}

@keyframes logoPulse {
    0%, 100% { transform: scale(1.05); }
    50% { transform: scale(1.1); }
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .footer-link {
    background: rgba(42, 42, 42, 0.5);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.footer-link i {
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

[data-theme="dark"] .footer-link i {
    color: var(--text-secondary);
}

.footer-link:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--shadow),
                0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

[data-theme="dark"] .footer-link:hover {
    background: rgba(42, 42, 42, 0.8);
    box-shadow: 0 4px 15px var(--shadow),
                0 0 0 1px rgba(64, 64, 64, 0.5) inset;
}

.footer-link:hover i {
    color: var(--text-primary);
    transform: scale(1.2) rotate(10deg);
    animation: iconWiggle 0.5s ease;
}

.footer-link:not(:hover) i {
    transition: all 0.3s ease;
    transform: scale(1) rotate(0deg);
}

@keyframes iconWiggle {
    0%, 100% { transform: scale(1.2) rotate(10deg); }
    25% { transform: scale(1.3) rotate(-10deg); }
    50% { transform: scale(1.2) rotate(10deg); }
    75% { transform: scale(1.3) rotate(-5deg); }
}

/* 友情链接样式 */
.footer-friends {
    margin: 2rem 0 1.5rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.friends-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.friends-list {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.friend-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    color: var(--text-primary);
    padding: 0.8rem 1.2rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.friend-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    user-select: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
}

.friend-name {
    font-weight: 500;
    font-size: 0.95rem;
}

.friend-link:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 25px var(--shadow-hover),
                0 0 0 1px rgba(255, 255, 255, 0.6) inset,
                0 0 20px rgba(33, 150, 243, 0.2);
    background: rgba(255, 255, 255, 0.9);
    border-color: var(--text-secondary);
    animation: float 1.5s ease-in-out infinite;
}

.friend-link:hover .friend-avatar {
    border-color: var(--text-secondary);
    transform: scale(1.1);
}

.footer-copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .banner-container {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .banner-nav {
        gap: 0;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-separator {
        display: none;
    }

    .welcome-text {
        font-size: 2rem;
    }

    .hitokoto-text {
        font-size: 1.1rem;
    }

    .hitokoto-box {
        flex-direction: column;
        align-items: stretch;
    }

    .copy-btn {
        width: 100%;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-logos {
        gap: 0.5rem;
    }

    .friends-list {
        flex-direction: column;
        gap: 1rem;
    }
}