:root {
    /* 浅色主题 - 默认 - 二次元风格 */
    --bg-color: #fef6ff;
    --bg-gradient: linear-gradient(135deg, #fef6ff 0%, #f5f0ff 50%, #fff5f8 100%);
    --text-color: #4a4a5a;
    --text-muted-color: #9a9ab0;
    --text-tertiary-color: #8888a0;
    --link-color: #b88ce8;
    --link-hover-color: #d4a5f5;
    --link-active-color: #9b6dd7;
    --button-bg-color: #f8f0ff;
    --button-bg-hover-color: #f0e5ff;
    --border-color: #e8d8f5;
    --avatar-border-color: #d4a5f5;
    --avatar-glow-color: rgba(212, 165, 245, 0.6);
    --card-bg-color: rgba(255, 255, 255, 0.85);
    --card-hover-bg-color: rgba(248, 240, 255, 0.95);
    --card-shadow-color: rgba(184, 140, 232, 0.15);
    
    /* 二次元强调色 */
    --accent-pink: #ff85b3;
    --accent-purple: #c77dff;
    --accent-cyan: #7dd3fc;
    --accent-warm-start: #ff9ecd;
    --accent-warm-end: #c77dff;
    
    /* 渐变和阴影 - 二次元风格 */
    --gradient-primary: linear-gradient(135deg, #ff85b3 0%, #c77dff 50%, #7dd3fc 100%);
    --gradient-secondary: linear-gradient(135deg, #ffd6e7 0%, #e8d5ff 100%);
    --gradient-bg: linear-gradient(135deg, #fef6ff 0%, #f5f0ff 25%, #fff5f8 50%, #f0f8ff 75%, #fef6ff 100%);
    --shadow-text: rgba(184, 140, 232, 0.2);
    --shadow-primary: rgba(199, 125, 255, 0.35);
    --shadow-warm: rgba(255, 133, 179, 0.35);
    --shadow-soft: 0 4px 20px rgba(184, 140, 232, 0.12);
    --shadow-hover: 0 8px 32px rgba(199, 125, 255, 0.2);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --profile-content-width: 44rem;
    --page-gutter: clamp(1.25rem, 7vw, 5rem);
}

/* --- Dark Theme via Media Query - 二次元暗色风格 --- */
@media (prefers-color-scheme: dark) {
    :root:not(.light-mode) {
        --bg-color: #1a1525;
        --bg-gradient: linear-gradient(135deg, #1a1525 0%, #1f1530 50%, #1a1828 100%);
        --text-color: #e8e0f5;
        --text-muted-color: #9a8ab0;
        --text-tertiary-color: #8078a0;
        --link-color: #d4a5f5;
        --link-hover-color: #e8c5ff;
        --link-active-color: #c77dff;
        --button-bg-color: #2a2040;
        --button-bg-hover-color: #352850;
        --border-color: #3a3055;
        --avatar-border-color: #c77dff;
        --avatar-glow-color: rgba(199, 125, 255, 0.5);
        --card-bg-color: rgba(35, 25, 55, 0.85);
        --card-hover-bg-color: rgba(45, 35, 65, 0.95);
        --card-shadow-color: rgba(199, 125, 255, 0.2);
        --glass-bg: rgba(30, 25, 45, 0.7);
        --glass-border: rgba(199, 125, 255, 0.2);
    }
}

html,
body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    position: relative;
    box-sizing: border-box;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-color);
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    margin: 0;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 133, 179, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(199, 125, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(125, 211, 252, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}
.main-div {
    overflow: auto;
    max-width: 960px;
    margin: 0 auto;
    padding-inline: var(--page-gutter);
    box-sizing: border-box;
}

.avatar-area-div {
    display: flex;
    flex-direction: row;
    align-items: center;
    text-align: center;
    justify-content: left;
    gap: 1rem;
    width: min(100%, var(--profile-content-width));
    margin-inline: auto;
    padding: 6rem 0rem 2rem 0rem;
    flex-wrap: wrap;
}

.avatar-area-div .ava-img-round {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 3px solid var(--avatar-border-color);
    box-shadow: 0 0 20px var(--avatar-glow-color), 0 0 40px rgba(199, 125, 255, 0.3);
    animation: breathing-glow 3s infinite ease-in-out;
    flex-shrink: 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.avatar-area-div .ava-img-round:hover {
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 0 30px var(--avatar-glow-color), 0 0 60px rgba(199, 125, 255, 0.4);
}

@keyframes breathing-glow {
    0%, 100% {
        box-shadow: 0 0 14px var(--avatar-glow-color), 0 0 28px rgba(199, 125, 255, 0.2);
    }
    50% {
        box-shadow: 0 0 24px var(--avatar-glow-color), 0 0 48px rgba(199, 125, 255, 0.3);
    }
}

.ava-name {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex-shrink: 0;
    margin-left: 0.5rem;
}
.ava-name .gradient-text {
    background-image: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    background-size: 200% 200%;
    animation: gradient-shift 4s ease infinite;
    font-size: clamp(2.45rem, 6.6vw, 3.2rem);
    line-height: 1;
    font-weight: 600;
    filter: drop-shadow(0 2px 8px var(--shadow-primary));
}

@keyframes gradient-shift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}
.ava-name .subtext {
    font-size: 1.65rem;
    line-height: 1.05;
    color: var(--text-muted-color);
    margin: 0.2rem;
}

.info-text {
    text-align: left;
    width: min(100%, var(--profile-content-width));
    margin: 0 auto 2rem auto; /* 水平居中，底部留点空间 */
    padding-left: 5px;
    box-sizing: border-box;
}

.info-text p {
    line-height: 1.75;
    margin-block: 0.9rem;
}

.page-header {
    width: min(100%, var(--profile-content-width));
    margin-inline: auto;
    padding: 5rem 0 2.25rem;
    text-align: center;
}

.page-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 1.6rem;
    color: var(--text-tertiary-color);
    font-size: 0.95rem;
}

.page-back-link:hover,
.page-back-link:active,
.page-back-link:focus {
    border-bottom: none;
}

.page-title {
    margin: 0;
    color: #7dd3fc;
    font-size: clamp(2rem, 5vw, 2.7rem);
    line-height: 1.1;
}

.page-content {
    padding-left: 0;
}

.page-content code {
    display: inline-block;
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-word;
    background: var(--button-bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.12rem 0.38rem;
    font-family: "Fira Mono", Consolas, Menlo, monospace;
    font-size: 0.95em;
}

.friends-page {
    width: min(100%, 52rem);
}

.friends-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.friend-card {
    position: relative;
    display: flex;
    align-items: center;
    min-width: 0;
    min-height: 6.5rem;
    box-sizing: border-box;
    background: var(--card-bg-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-color);
    box-shadow: var(--shadow-soft);
    transition: transform 200ms ease, box-shadow 200ms ease, background-color 200ms ease;
}

.friend-card:has(.friend-card-link:hover),
.friend-card:focus-within {
    color: var(--text-color);
    background: var(--card-hover-bg-color);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.friend-card:focus-within {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
}

.friend-card-unavailable {
    opacity: 0.64;
}

.friend-avatar {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    flex: 0 0 4rem;
    border: 2px solid var(--avatar-border-color);
    border-radius: 50%;
    background: var(--button-bg-color);
    overflow: hidden;
    box-shadow: 0 2px 8px var(--card-shadow-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.friend-card:hover .friend-avatar {
    transform: scale(1.05);
    box-shadow: 0 4px 12px var(--shadow-primary);
}

.friend-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.friend-avatar-fallback {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    color: var(--text-muted-color);
    font-size: 1.4rem;
}

.friend-avatar-image-failed .friend-avatar-fallback,
.friend-avatar:not(:has(img)) .friend-avatar-fallback {
    display: inline-flex;
}

.friend-avatar-image-failed img {
    display: none;
}

.friend-card-link {
    display: flex;
    min-width: 0;
    flex: 1;
    align-items: center;
    padding: 1rem;
    color: var(--text-color);
}

a.friend-card-link:hover,
a.friend-card-link:focus,
a.friend-card-link:active {
    color: var(--text-color);
    border-bottom: none;
}

.friend-details {
    display: flex;
    min-width: 0;
    flex: 1;
    flex-direction: column;
    gap: 0.35rem;
    margin-left: 0.9rem;
}

.friend-name {
    overflow: hidden;
    color: var(--text-color);
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.3;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.friend-description {
    display: -webkit-box;
    overflow: hidden;
    color: var(--text-muted-color);
    font-size: 0.92rem;
    line-height: 1.45;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.friend-description-tooltip-toggle {
    width: 2.1rem;
    height: 2.1rem;
    flex: 0 0 2.1rem;
    margin-right: 0.75rem;
    padding: 0;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--text-muted-color);
    cursor: pointer;
}

.friend-description-tooltip-toggle:hover,
.friend-description-tooltip-toggle:focus-visible {
    background: var(--button-bg-color);
    color: var(--text-color);
}

.friend-description-tooltip-toggle:focus-visible {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
}

.friend-description-popover {
    position: absolute;
    z-index: 2;
    right: 0.75rem;
    bottom: calc(100% + 0.4rem);
    display: none;
    width: min(22rem, calc(100% - 1.5rem));
    padding: 0.75rem 0.9rem;
    box-sizing: border-box;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--card-bg-color);
    color: var(--text-color);
    box-shadow: 0 6px 16px var(--card-shadow-color);
    font-size: 0.9rem;
    line-height: 1.5;
}

.friend-description-tooltip-toggle:hover + .friend-description-popover,
.friend-description-tooltip-toggle:focus-visible + .friend-description-popover,
.friend-card-tooltip-open .friend-description-popover {
    display: block;
}

.friends-apply {
    margin-bottom: 2rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.friends-apply p {
    color: var(--text-muted-color);
}

.list-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem; /* 缩小行间距 */
    margin-bottom: 1.2rem;
}

.list-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem; /* 缩小项间距 */
    align-items: center;
}

.list-row a {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}

/* 专门处理 Cyime 后紧跟的 GitHub 图标 */
.list-row a.icon-only-link {
    margin-left: -0.8rem; /* 负边距让图标更靠近名称 */
}

.list-row a i {
    width: 1.1rem;
    text-align: center;
    margin-right: 0.3rem;
}

/* 针对 icon-only-link 移除多余边距 */
.list-row a.icon-only-link i {
    margin-right: 0;
}

.hero-tagline {
    max-width: 44rem;
    padding-inline: 1rem;
    box-sizing: border-box;
    overflow-wrap: anywhere;
    word-break: break-word;
    line-height: 1.65;
}

.hero-tagline span {
    display: block;
}

.hero-tagline span + span {
    margin-top: 0.2rem;
}


a {
    color: var(--link-color);
    text-decoration: none;
    position: relative;
    transition: color 0.2s ease;
}

a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

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

a:hover::after {
    width: 100%;
}

a:active {
    color: var(--link-active-color);
}

ul li {
    margin-top: 0.8em; /* 调整这个值来改变空行的大小 */
}
ul {
    padding-left: 0em; /* 调整这个值来改变列表项的缩进 */
    list-style: none;
}

.footer-div {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.75rem;
    color: var(--text-tertiary-color);
    padding: 5vh;
}
.footer-div a {
    color: var(--text-tertiary-color);
    text-decoration: none;
}
.footer-div a:hover,
.footer-div a:active,
.footer-div a:focus {
    text-decoration: none;
    border-bottom: none;
}
.footer-div p {
    margin-block: 0.5em;
}

@media (max-width: 480px) {
    .avatar-area-div {
        flex-direction: column;
        text-align: center;
        padding: 3rem 0rem 1rem 0rem;
    }
    .ava-img-round {
        width: 80px;
        height: 80px;
    }
    .ava-name {
        margin: 0;
        align-items: center;
    }
    .hero-tagline {
        max-width: 100%;
        padding-inline: 1rem;
    }
    .friends-grid {
        grid-template-columns: 1fr;
    }
    .friend-card {
        min-height: 6rem;
    }
    .friend-avatar {
        width: 3.5rem;
        height: 3.5rem;
        flex-basis: 3.5rem;
    }
    .friend-card-link {
        padding: 0.9rem;
    }
    .friend-description-tooltip-toggle {
        width: 2rem;
        height: 2rem;
        flex-basis: 2rem;
        margin-right: 0.55rem;
    }
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-warm-start) 0%, var(--accent-warm-end) 100%);
    background-size: 200% 200%;
    color: white;
    border-radius: 8px;
    border: none;
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    box-shadow: 0 2px 8px var(--shadow-warm);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-position 0.3s ease;
}

.btn-primary:hover {
    opacity: 0.95;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--shadow-warm);
    background-position: 100% 50%;
}

.btn-secondary {
    background: var(--button-bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    transition: background 0.2s ease, transform 0.2s ease;
}

.btn-secondary:hover {
    background: var(--button-bg-hover-color);
    transform: translateY(-1px);
}