/* - 全局样式 */
@font-face {
    font-family: "Linotte";
    src: url("../fonts/Linotte\ Regular.otf") format("opentype");
    font-weight: normal;
}

@font-face {
    font-family: "Linotte";
    src: url("../fonts/Linotte\ Bold.otf") format("opentype");
    font-weight: bold;
}

@font-face {
    font-family: "HYZhengYuan";
    src: url("../fonts/HYZhengYuan-55W.ttf") format("opentype");
    font-weight: normal;
}

@font-face {
    font-family: "HYZhengYuan";
    src: url("../fonts/HYZhengYuan-85S.ttf") format("opentype");
    font-weight: bold;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #eeeeee;
    color: #4c4948;
    font-family: Linotte, HYZhengYuan, sans-serif;
    font-weight: normal;
}

/* 主题色彩变量 */
:root {
    /* THEMEABLE COLORS - Default (Pink) Theme */
    --theme-primary: #ffb6c1;
    --theme-primary-dark: #e09aa4;
    --theme-primary-light: #ffd1d9;
    --theme-accent: #87ceeb;
    --theme-text-main: #3d3d3d;
    --theme-text-secondary: #6a6a6a;
    --theme-card-background: rgba(255, 255, 255, 0.55);
    --theme-card-border: rgba(255, 255, 255, 0.3);
    --theme-card-shadow: rgba(90, 90, 90, 0.1);
    --theme-page-background: #ffd1d9;
    --theme-hr-gradient-color: rgba(255, 218, 225, 0.7);

    /* Fixed Layout & Effects Variables */
    --max-width: 1000px;
    --gap: 24px;
    --border-radius-large: 20px;
    --border-radius-medium: 16px;
    --border-radius-small: 12px;
    --backdrop-blur: 12px;
    --transition-speed: 0.3s;
    --animation-stagger-delay: 100ms;
}

/* Base Body & Background Styling */
body {
    font-family: 'HYZhengYuan', 'Linotte', 'Inter', sans-serif;
    color: var(--theme-text-main);
    background-color: var(--theme-page-background);
    transition: background-color var(--transition-speed) ease;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.background-image {
    position: absolute;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;
    background-size: cover;
    background-position: center;
    filter: blur(20px) brightness(0.9);
    transform: scale(1.1);
    opacity: 0;
    transition: opacity 2s ease-in-out, transform 7s ease-in-out, filter 0.5s ease-out;
}

.background-image.active {
    opacity: 1;
    transform: scale(1);
}

.background-container.show-clear-bg .background-image.active {
    filter: blur(0px) brightness(1);
    transform: scale(1.03);
}

#sakura-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* Main Layout Container */
.primary-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--gap);
    padding: 40px var(--gap) 60px;
    max-width: var(--max-width);
    margin: 0 auto;
}

/* --- Card Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* Unified Card Styling */
.card-item {
    width: 100%;
    background-color: var(--theme-card-background);
    border: 1px solid var(--theme-card-border);
    border-radius: var(--border-radius-large);
    box-shadow: 0 8px 32px 0 var(--theme-card-shadow);
    backdrop-filter: blur(var(--backdrop-blur));
    -webkit-backdrop-filter: blur(var(--backdrop-blur));
    padding: var(--gap);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
    box-sizing: border-box;
    margin: 0;
}

.card-item:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 16px 45px 0 var(--theme-card-shadow);
}

/* Staggered animation delays */
.hero-card { animation-delay: var(--animation-stagger-delay); }
.main-content { animation-delay: calc(var(--animation-stagger-delay) * 1); }
.secondary-card#music-player { animation-delay: calc(var(--animation-stagger-delay) * 2); }
.secondary-card#recommend { animation-delay: calc(var(--animation-stagger-delay) * 3); }
.secondary-card#hitokoto { animation-delay: calc(var(--animation-stagger-delay) * 4); }
.secondary-card#settings { animation-delay: calc(var(--animation-stagger-delay) * 5); }

/* Hero Card (Personal Info) */
.hero-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--gap);
    margin-bottom: 0;
}

.hero-card .avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 4px solid #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    object-fit: cover;
}

.hero-card .name {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    color: var(--theme-text-main);
}

.social-icons {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.social-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    color: var(--theme-primary);
    font-size: 1.5rem;
    text-decoration: none;
    transition: all var(--transition-speed) ease;
}

.social-icon:hover {
    background-color: #fff;
    color: var(--theme-primary-dark);
    transform: scale(1.1);
}

.social-icon:active {
    transform: scale(0.95);
    filter: brightness(0.9);
}

/* Main Content Card */
.main-content h2 {
    font-size: 1.6rem;
    color: var(--theme-text-main);
    margin-bottom: 16px;
}

.main-content h3 {
    font-size: 1.3rem;
    color: var(--theme-text-main);
    margin-bottom: 12px;
}

.main-content p {
    line-height: 1.8;
    color: var(--theme-text-secondary);
}

.content-block {
    margin-bottom: var(--gap);
}
.content-block:last-child {
    margin-bottom: 0;
}

.highlight {
    color: var(--theme-primary);
}

.emoji {
    font-family: sans-serif;
    color: var(--theme-primary-dark);
    display: inline-block;
    animation: bounce 2s infinite ease-in-out;
}

.decorative-hr {
    text-align: center;
    font-size: 1.5rem;
    color: var(--theme-primary-light);
    margin: var(--gap) 0;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.7);
}

.elegant-hr {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), var(--theme-hr-gradient-color), rgba(0, 0, 0, 0));
    margin: var(--gap) 0;
}

/* New Content Layout */
.content-layout {
    display: flex;
    align-items: stretch;
    gap: var(--gap);
    width: 100%;
    box-sizing: border-box;
}

.main-content {
    flex: 2;
    min-width: 0;
    margin: 0;
    padding: var(--gap);
}

/* Project Cards */
.project-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.project-card {
    background-color: rgba(255, 255, 255, 0.3);
    padding: 20px;
    border-radius: var(--border-radius-medium);
    border: 1px solid var(--theme-card-border);
    transition: all var(--transition-speed) ease;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: #fff;
}

.project-card:active {
    transform: scale(0.98) translateY(-2px);
    filter: brightness(0.98);
}

.project-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--theme-text-main);
}

.project-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--theme-text-secondary);
}

/* Secondary Cards Section */
.secondary-cards {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--gap);
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
    backdrop-filter: none;
    animation: none;
}

.secondary-card {
    padding: var(--gap);
    margin: 0;
}

.secondary-card .title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0 16px 0;
    color: var(--theme-text-main);
}

.secondary-card .content {
    padding: 0;
    margin: 0;
}

.secondary-card .content p,
.secondary-card .content a {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--theme-text-secondary);
    text-decoration: none;
    margin: 0;
}

.secondary-card .content a {
    transition: color var(--transition-speed) ease;
}

.secondary-card .content a:hover {
    color: var(--theme-primary);
}

/* Music Player Card */
#music-player .player-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 10px;
}

#music-player .player-header .title {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.upload-btn {
    font-size: 1.3rem;
    color: var(--theme-text-secondary);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-btn:hover {
    color: var(--theme-primary);
    transform: scale(1.1);
}

#music-player .player-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
}

.song-info {
    text-align: center;
}

.song-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--theme-text-main);
}

.song-artist {
    font-size: 0.9rem;
    color: var(--theme-text-secondary);
}

.progress-container {
    width: 100%;
    height: 6px;
    background-color: rgba(0,0,0,0.1);
    border-radius: 3px;
    cursor: pointer;
    overflow: hidden;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background-color: var(--theme-primary);
    border-radius: 3px;
    transition: width 0.1s linear;
}

.player-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.control-btn {
    background: none;
    border: none;
    color: var(--theme-text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.control-btn:hover {
    color: var(--theme-primary);
    transform: scale(1.1);
}

.control-btn.play-pause {
    font-size: 1.8rem;
    color: var(--theme-primary);
}

.control-btn.play-pause:hover {
    color: var(--theme-primary-dark);
}

/* Settings Card Specifics */
.settings-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 0;
    padding: 0;
}

.settings-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--theme-text-main);
    margin: 0;
}

.themes {
    display: flex;
    gap: 16px;
    justify-content: flex-start;
    width: 100%;
}

.theme-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--border-radius-small);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    background-color: rgba(255, 255, 255, 0.2);
    flex: 1;
    justify-content: center;
}

.theme-item .color {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #ffb6c1;
    border: 2px solid #fff;
}

.theme-item .name {
    font-weight: 500;
    color: var(--theme-text-secondary);
}

.theme-item.active {
    border-color: var(--theme-primary);
    background-color: #fff;
}

.theme-item:hover:not(.active) {
    background-color: rgba(255, 255, 255, 0.6);
}

.theme-item:active {
    transform: scale(0.95);
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-speed) ease;
}

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

.footer .fa-heart {
    color: var(--theme-primary);
    margin: 0 4px;
    animation: pulse 1.5s infinite ease-in-out;
}