:root {
    --ease-apple: cubic-bezier(0.4, 0, 0.2, 1);
    --anim-duration: 450ms;

    --dark-bg: #1A1817;
    --dark-card: #242424;
    --dark-text: #FFFFFF;
    --dark-desc: #8B7D6B;
    --dark-border: #333333;
    --dark-hover: #2D2D2D;
    --gold-color: #B8860B;
    --gold-bright: #FFD700;
    --silver-color: #C0C0C0;
    --copper-color: #CD7F32;
    --gold-glow: rgba(184, 134, 11, 0.45);
    --silver-glow: rgba(192, 192, 192, 0.4);
    --copper-glow: rgba(205, 127, 50, 0.4);
    --accent-glow: rgba(255, 215, 0, 0.25);
    --light-bg: #F5F5F5;
    --light-card: #FFFFFF;
    --light-text: #333333;
    --light-desc: #666666;
    --light-border: #E0E0E0;
    --light-hover: #F0F0F0;

    --glass-bg: rgba(26, 24, 23, 0.65);
    --glass-border: rgba(255, 255, 255, 0.08);
    --card-glass-bg: rgba(36, 36, 36, 0.7);
    --text-primary: #FFFFFF;
    --text-desc-color: #8B7D6B;

    --glow-color: #B8860B;
    --glow-bright: #FFD700;
    --glow-effect: rgba(184, 134, 11, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    transition: all 0.3s ease;
}

body.theme-dark {
    background: linear-gradient(180deg, #1A1817 0%, #121110 100%);
    color: var(--dark-text);
}

body.theme-wave {
    background: linear-gradient(135deg, #0f172a 0%, #1e2937 50%, #334155 100%);
    color: var(--dark-text);
    --glass-bg: rgba(20, 32, 43, 0.6);
    --glass-border: rgba(0, 212, 255, 0.15);
    --card-glass-bg: rgba(28, 45, 61, 0.65);
    --text-primary: #E1F5FE;
    --text-desc-color: #A7C4DE;
    --glow-color: #00BCD4;
    --glow-bright: #00E5FF;
    --glow-effect: rgba(0, 229, 255, 0.35);
}

body.theme-light {
    background: linear-gradient(180deg, #f8f5f0 0%, #f0e9d9 100%);
    color: var(--light-text);
    --glass-bg: rgba(245, 245, 245, 0.7);
    --glass-border: rgba(0, 0, 0, 0.06);
    --card-glass-bg: rgba(255, 255, 255, 0.75);
    --text-primary: #333333;
    --text-desc-color: #666666;
    --glow-color: #8B5A2B;
    --glow-bright: #CD853F;
    --glow-effect: rgba(139, 90, 43, 0.2);
}

/* 星空背景层 */
.star-bg {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.08) 1px, transparent 2px),
        radial-gradient(circle at 50% 60%, rgba(255,255,255,0.06) 1px, transparent 2px),
        radial-gradient(circle at 80% 40%, rgba(255,255,255,0.07) 1px, transparent 2px),
        radial-gradient(circle at 35% 85%, rgba(255,255,255,0.05) 1px, transparent 2px),
        radial-gradient(circle at 65% 15%, rgba(255,255,255,0.06) 1px, transparent 2px);
    background-size: 120px 120px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
    animation: twinkle 25s infinite linear;
}

body.theme-light .star-bg {
    opacity: 0.15;
    background:
        radial-gradient(circle at 20% 30%, rgba(184,134,11,0.1) 1px, transparent 2px),
        radial-gradient(circle at 50% 60%, rgba(184,134,11,0.08) 1px, transparent 2px),
        radial-gradient(circle at 80% 40%, rgba(184,134,11,0.09) 1px, transparent 2px);
    background-size: 120px 120px;
}

/* 微妙网格层 */
.subtle-grid {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}

body.theme-light .subtle-grid {
    background-image:
        linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
}

@keyframes twinkle {
    0%, 100% { opacity: 0.55; }
    50% { opacity: 0.75; }
}

.wavy-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.5s ease;
}

body.theme-wave .wavy-background {
    opacity: 0.3;
}

.wave {
    position: absolute;
    width: 200%;
    height: 200%;
    animation: wave-animation 18s linear infinite;
    opacity: 0.25;
}

.wave:nth-child(1) {
    background: radial-gradient(ellipse at center, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    animation-duration: 12s;
}

.wave:nth-child(2) {
    background: radial-gradient(ellipse at center, rgba(192, 192, 192, 0.08) 0%, transparent 70%);
    animation-duration: 8s;
    animation-delay: -2s;
}

.wave:nth-child(3) {
    background: radial-gradient(ellipse at center, rgba(205, 127, 50, 0.06) 0%, transparent 70%);
    animation-duration: 15s;
    animation-delay: -5s;
}

@keyframes wave-animation {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-30%, -20%) rotate(360deg); }
}

.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(184, 134, 11, 0.2);
    background: rgba(26, 24, 23, 0.92);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

body.theme-light .nav-bar {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid #d4c19c;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

body.theme-wave .nav-bar {
    background: rgba(15, 23, 42, 0.92);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-icon {
    font-size: 24px;
}

.nav-title {
    font-size: 18px;
    font-weight: bold;
}

body.theme-light .nav-title {
    color: var(--light-text);
}

.nav-right {
    display: flex;
    gap: 15px;
}

.nav-btn {
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.nav-btn::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    width: 0; height: 2px;
    background: var(--gold-bright);
    transition: all 0.3s ease;
}

.nav-btn:hover::after,
.nav-btn.active::after {
    left: 0;
    width: 100%;
}

body.theme-dark .nav-btn {
    color: #aaa;
    background: rgba(255, 255, 255, 0.05);
}

body.theme-dark .nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--dark-text);
}

body.theme-dark .nav-btn.active {
    background: rgba(255, 215, 0, 0.2);
    color: var(--gold-color);
    border-color: rgba(255, 215, 0, 0.3);
}

body.theme-light .nav-btn {
    color: var(--light-text);
    background: rgba(0, 0, 0, 0.05);
}

body.theme-light .nav-btn:hover {
    background: rgba(0, 0, 0, 0.1);
}

body.theme-light .nav-btn.active {
    background: rgba(255, 215, 0, 0.3);
    color: #8B6914;
    border-color: rgba(255, 215, 0, 0.5);
}

body.theme-wave .nav-btn {
    color: #ccc;
    background: rgba(255, 255, 255, 0.05);
}

body.theme-wave .nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--dark-text);
}

body.theme-wave .nav-btn.active {
    background: rgba(255, 215, 0, 0.2);
    color: var(--gold-color);
    border-color: rgba(255, 215, 0, 0.3);
}

.main-content {
    margin-top: 60px;
    position: relative;
    z-index: 1;
}

.home-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: 30px 20px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.header-left {
    text-align: left;
}

.header-right {
    display: flex;
    gap: 15px;
    align-items: center;
}

.visitor-stats-card {
    padding: 8px 16px !important;
}

.visitor-stats-card .stats-label {
    font-size: 10px;
}

.visitor-stats-card .stats-value {
    font-size: 15px;
}

.page-title {
    font-size: clamp(32px, 4vw, 46px);
    font-weight: 800;
    letter-spacing: -0.04em;
    margin: 4px 0 10px;
    text-wrap: balance;
}

.page-eyebrow {
    color: var(--gold-color);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
}

body.theme-light .page-title {
    color: var(--light-text);
}

.page-subtitle {
    font-size: 16px;
    font-style: italic;
    opacity: 0.7;
}

body.theme-light .page-subtitle {
    color: var(--light-desc);
}

.stats-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 25px;
    border-radius: 12px;
}

body.theme-dark .stats-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

body.theme-light .stats-card {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid var(--light-border);
}

body.theme-wave .stats-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stats-icon {
    font-size: 36px;
}

.stats-info {
    display: flex;
    flex-direction: column;
}

.stats-label {
    font-size: 12px;
    opacity: 0.6;
}

.stats-value {
    font-size: 20px;
    font-weight: bold;
    color: var(--gold-color);
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
}

body.theme-dark .progress-bar-container {
    background: rgba(255, 255, 255, 0.1);
}

body.theme-light .progress-bar-container {
    background: rgba(0, 0, 0, 0.1);
}

body.theme-wave .progress-bar-container {
    background: rgba(255, 255, 255, 0.1);
}

.progress-bar {
    width: 100%;
    height: 100%;
    border-radius: 4px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--copper-color), var(--silver-color), var(--gold-color));
    border-radius: 4px;
    transition: width 0.5s ease;
}

.filter-bar {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    padding: 15px 20px;
    border-radius: 14px;
    position: sticky;
    top: 76px;
    z-index: 5;
    backdrop-filter: blur(18px);
}

body.theme-dark .filter-bar {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

body.theme-light .filter-bar {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--light-border);
}

body.theme-wave .filter-bar {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.filter-label {
    font-size: 14px;
    opacity: 0.7;
}

.filter-select {
    padding: 8px 24px 8px 12px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
    appearance: none;
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 12px;
}

body.theme-dark .filter-select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--dark-text);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238B7D6B' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

body.theme-dark .filter-select:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background-color: rgba(255, 255, 255, 0.08);
}

body.theme-dark .filter-select:focus {
    border-color: var(--gold-color);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

body.theme-dark .filter-select option {
    background: #1A1817;
    color: white;
    padding: 8px;
}

body.theme-light .filter-select {
    background: #fff;
    border: 1px solid var(--light-border);
    color: var(--light-text);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

body.theme-light .filter-select option {
    background: #fff;
    color: var(--light-text);
}

body.theme-wave .filter-select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--dark-text);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238B7D6B' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

body.theme-wave .filter-select option {
    background: #1a1a2e;
    color: white;
}

.search-input {
    flex: 1;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 14px;
}

body.theme-dark .search-input {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--dark-text);
}

body.theme-dark .search-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

body.theme-light .search-input {
    background: #fff;
    border: 1px solid var(--light-border);
    color: var(--light-text);
}

body.theme-light .search-input::placeholder {
    color: rgba(0, 0, 0, 0.3);
}

body.theme-wave .search-input {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--dark-text);
}

body.theme-wave .search-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.count-label {
    font-size: 14px;
    opacity: 0.6;
}

.achievements-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.achievement-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border-radius: 20px;
    cursor: pointer;
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.45s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.45s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.45s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.9;
    position: relative;
    overflow: hidden;
    will-change: transform, box-shadow;
}

.achievement-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255,215,0,0.06), transparent);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

.achievement-card:hover::before {
    opacity: 1;
}

body.theme-dark .achievement-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

body.theme-light .achievement-card {
    background: #fff;
    border: 1px solid var(--light-border);
}

body.theme-wave .achievement-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.achievement-card:hover {
    opacity: 1;
    transform: translateY(-4px);
}

body.theme-dark .achievement-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
}

body.theme-light .achievement-card:hover {
    background: var(--light-hover);
    border-color: rgba(0, 0, 0, 0.1);
}

body.theme-wave .achievement-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
}

.achievement-card.completed {
    opacity: 1;
    animation: pulse-glow 3s ease-in-out infinite;
}

/* 已完成卡片：按稀有度设置分层光晕 */
.achievement-card[data-rarity="gold"].completed {
    border-color: var(--gold-color);
    box-shadow:
        0 0 15px var(--gold-glow),
        0 0 35px rgba(184,134,11,0.25),
        inset 0 0 20px rgba(255,215,0,0.15);
}
.achievement-card[data-rarity="silver"].completed {
    border-color: var(--silver-color);
    box-shadow:
        0 0 15px var(--silver-glow),
        0 0 35px rgba(192,192,192,0.2),
        inset 0 0 20px rgba(192,192,192,0.1);
}
.achievement-card[data-rarity="copper"].completed {
    border-color: var(--copper-color);
    box-shadow:
        0 0 15px var(--copper-glow),
        0 0 35px rgba(205,127,50,0.2),
        inset 0 0 20px rgba(205,127,50,0.1);
}

@keyframes pulse-glow {
    0% { box-shadow: 0 0 15px var(--accent-glow), 0 0 35px rgba(255,215,0,0.15); }
    50% { box-shadow: 0 0 25px var(--accent-glow), 0 0 50px rgba(255,215,0,0.25); }
    100% { box-shadow: 0 0 15px var(--accent-glow), 0 0 35px rgba(255,215,0,0.15); }
}

/* 未完成卡片弱化 */
.achievement-card:not(.completed) {
    filter: saturate(0.82);
}

body.theme-dark .achievement-card.completed {
    background: rgba(255, 255, 255, 0.04);
}
body.theme-dark .achievement-card[data-rarity="gold"].completed {
    background: rgba(255, 215, 0, 0.06);
}
body.theme-dark .achievement-card[data-rarity="silver"].completed {
    background: rgba(192, 192, 192, 0.06);
}
body.theme-dark .achievement-card[data-rarity="copper"].completed {
    background: rgba(205, 127, 50, 0.06);
}

body.theme-light .achievement-card.completed {
    background: rgba(0, 0, 0, 0.02);
}
body.theme-light .achievement-card[data-rarity="gold"].completed {
    background: rgba(255, 215, 0, 0.06);
}
body.theme-light .achievement-card[data-rarity="silver"].completed {
    background: rgba(192, 192, 192, 0.06);
}
body.theme-light .achievement-card[data-rarity="copper"].completed {
    background: rgba(205, 127, 50, 0.06);
}

body.theme-wave .achievement-card.completed {
    background: rgba(255, 255, 255, 0.04);
}
body.theme-wave .achievement-card[data-rarity="gold"].completed {
    background: rgba(255, 215, 0, 0.06);
}
body.theme-wave .achievement-card[data-rarity="silver"].completed {
    background: rgba(192, 192, 192, 0.06);
}
body.theme-wave .achievement-card[data-rarity="copper"].completed {
    background: rgba(205, 127, 50, 0.06);
}

.achievement-card.locked {
    cursor: default;
}

.achievement-card.locked:hover {
    transform: none;
}

.achievement-card.locked .card-checkbox {
    cursor: default;
}

.achievement-card.locked .checkmark {
    background: rgba(255, 215, 0, 0.2);
    border-color: var(--gold-color);
}

.achievement-card.locked .checkmark::after {
    opacity: 1;
}

.card-icon {
    width: 58px;
    height: 58px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    transition: all 0.4s ease;
    flex-shrink: 0;
    overflow: hidden;
    background: rgba(0,0,0, 0.45);
    border: 2px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 4px 15px rgba(0,0,0,0.4);
    will-change: transform;
}

.achievement-card:hover .card-icon {
    transform: scale(1.06) rotate(5deg);
}

.card-icon svg {
    width: 40px;
    height: 40px;
    display: block;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.5));
}

.achievement-card:not(.completed) .card-icon svg {
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.5)) grayscale(0.1) opacity(0.8);
}

.achievement-card[data-rarity="gold"] .card-icon {
    border-color: rgba(255, 215, 0, 0.55);
    box-shadow: inset 0 0 12px rgba(255, 215, 0, 0.08);
}

.achievement-card[data-rarity="gold"].completed .card-icon {
    background: rgba(255, 215, 0, 0.22);
    border-color: var(--gold-color);
    box-shadow: 0 0 18px rgba(255, 215, 0, 0.45), inset 0 0 12px rgba(255, 215, 0, 0.1);
}

.achievement-card[data-rarity="silver"] .card-icon {
    border-color: rgba(192, 192, 192, 0.55);
    box-shadow: inset 0 0 12px rgba(192, 192, 192, 0.08);
}

.achievement-card[data-rarity="silver"].completed .card-icon {
    background: rgba(192, 192, 192, 0.22);
    border-color: var(--silver-color);
    box-shadow: 0 0 18px rgba(192, 192, 192, 0.45), inset 0 0 12px rgba(192, 192, 192, 0.1);
}

.achievement-card[data-rarity="copper"] .card-icon {
    border-color: rgba(205, 127, 50, 0.55);
    box-shadow: inset 0 0 12px rgba(205, 127, 50, 0.08);
}

.achievement-card[data-rarity="copper"].completed .card-icon {
    background: rgba(205, 127, 50, 0.22);
    border-color: var(--copper-color);
    box-shadow: 0 0 18px rgba(205, 127, 50, 0.45), inset 0 0 12px rgba(205, 127, 50, 0.1);
}

.card-content {
    flex: 1;
    min-width: 0;
}

.card-title {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

body.theme-light .card-title {
    color: var(--light-text);
}

.card-desc {
    font-size: 13px;
    line-height: 1.55;
    margin-bottom: 9px;
    opacity: 0.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.achievement-card[data-rarity="gold"] .card-desc {
    color: var(--gold-color);
}

.achievement-card[data-rarity="silver"] .card-desc {
    color: var(--silver-color);
}

.achievement-card[data-rarity="copper"] .card-desc {
    color: var(--copper-color);
}

.card-rate {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    opacity: 0.7;
}

.rate-icon {
    display: inline-flex;
    align-items: center;
    padding: 2px 6px;
    border: 1px solid currentColor;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 700;
    line-height: 1.2;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 7px;
    padding: 26px 0 8px;
}

.page-button {
    min-width: 34px;
    height: 34px;
    padding: 0 10px;
    border: 1px solid var(--glass-border);
    border-radius: 9px;
    background: var(--card-glass-bg);
    color: var(--text-primary);
    cursor: pointer;
    font: inherit;
    transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.page-button:hover:not(:disabled), .page-button.active {
    background: var(--gold-color);
    border-color: var(--gold-color);
    color: #17120a;
    transform: translateY(-2px);
}

.page-button:disabled { opacity: .35; cursor: not-allowed; }
.pagination-ellipsis { opacity: .55; padding: 0 2px; }

.rate-icon {
    font-size: 14px;
}

/* Steam 风格成就卡：深蓝信息面板、方形奖章、亮标题与低对比说明 */
.achievement-card {
    min-height: 112px;
    gap: 16px;
    padding: 16px;
    border-radius: 2px;
    border: 1px solid #263c50;
    background: #16202d;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
    opacity: 1;
}

.achievement-card::before {
    background: linear-gradient(90deg, rgba(103, 193, 245, 0.12), transparent 55%);
}

.achievement-card:hover {
    transform: none;
    border-color: #4c6b85;
    box-shadow: inset 3px 0 #67c1f5, inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

body.theme-dark .achievement-card,
body.theme-light .achievement-card,
body.theme-wave .achievement-card {
    background: #16202d;
    border-color: #263c50;
}

body.theme-dark .achievement-card:hover,
body.theme-light .achievement-card:hover,
body.theme-wave .achievement-card:hover {
    background: #1b2b3b;
    border-color: #4c6b85;
}

.achievement-card.completed {
    animation: none;
    box-shadow: inset 3px 0 #a4d007, inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.achievement-card[data-rarity="gold"].completed,
.achievement-card[data-rarity="silver"].completed,
.achievement-card[data-rarity="copper"].completed {
    background: #1b2b27;
    border-color: #3d5b37;
    box-shadow: inset 3px 0 #a4d007, inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.achievement-card:not(.completed) {
    filter: none;
}

.card-icon {
    width: 64px;
    height: 64px;
    border: 1px solid #31465a;
    border-radius: 2px;
    background:
        linear-gradient(135deg, rgba(103, 193, 245, 0.09), transparent 65%),
        #0d141d;
    box-shadow: inset 0 0 0 3px rgba(0, 0, 0, 0.2);
}

.achievement-card:hover .card-icon {
    transform: none;
    border-color: #67c1f5;
}

.card-icon svg {
    width: 46px;
    height: 46px;
    filter: drop-shadow(0 2px 1px rgba(0, 0, 0, 0.55));
}

.achievement-card:not(.completed) .card-icon svg {
    filter: grayscale(0.88) brightness(0.72) drop-shadow(0 2px 1px rgba(0, 0, 0, 0.55));
    opacity: 0.82;
}

.achievement-card.completed .card-icon {
    border-color: #6c8d36;
    background:
        linear-gradient(135deg, rgba(164, 208, 7, 0.16), transparent 65%),
        #101a20;
    box-shadow: inset 0 0 0 3px rgba(164, 208, 7, 0.06);
}

.achievement-card[data-rarity="gold"].completed .card-icon,
.achievement-card[data-rarity="silver"].completed .card-icon,
.achievement-card[data-rarity="copper"].completed .card-icon {
    background:
        linear-gradient(135deg, rgba(164, 208, 7, 0.16), transparent 65%),
        #101a20;
    border-color: #6c8d36;
    box-shadow: inset 0 0 0 3px rgba(164, 208, 7, 0.06);
}

.achievement-card[data-rarity="gold"] .card-icon,
.achievement-card[data-rarity="silver"] .card-icon,
.achievement-card[data-rarity="copper"] .card-icon {
    border-color: #31465a;
}

.card-title,
body.theme-light .card-title {
    color: #ebf6ff;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 0;
    margin-bottom: 5px;
}

.card-desc,
.achievement-card[data-rarity="gold"] .card-desc,
.achievement-card[data-rarity="silver"] .card-desc,
.achievement-card[data-rarity="copper"] .card-desc {
    color: #8f98a0;
    font-size: 12px;
    line-height: 1.45;
    margin-bottom: 8px;
    opacity: 1;
}

.card-rate {
    gap: 7px;
    color: #677784;
    font-size: 11px;
    opacity: 1;
}

.rate-icon {
    padding: 0;
    border: 0;
    border-radius: 0;
    color: #67c1f5;
    font-size: 11px;
    font-weight: 400;
}

.achievement-card.completed .rate-icon { color: #a4d007; }

.card-checkbox {
    align-self: flex-end;
    gap: 6px;
    color: #a4d007;
    font-size: 11px;
}

.checkmark {
    width: 16px;
    height: 16px;
    border-radius: 2px;
    border-color: #4c6b85;
}

.card-checkbox input[type="checkbox"]:checked + .checkmark {
    background: #a4d007;
    border-color: #a4d007;
}

@media (max-width: 768px) {
    .achievement-card { min-height: 100px; }
    .card-icon { width: 56px; height: 56px; }
    .card-icon svg { width: 40px; height: 40px; }
}

.card-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.card-checkbox input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 24px;
    height: 24px;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

body.theme-light .checkmark {
    border-color: rgba(0, 0, 0, 0.2);
}

.card-checkbox input[type="checkbox"]:checked + .checkmark {
    background: var(--gold-color);
    border-color: var(--gold-color);
}

.checkmark::after {
    content: '';
    width: 10px;
    height: 10px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231A1817' stroke-width='3'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card-checkbox input[type="checkbox"]:checked + .checkmark::after {
    opacity: 1;
}

.check-text {
    font-size: 13px;
    opacity: 0.5;
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-checkbox input[type="checkbox"]:checked ~ .check-text {
    opacity: 1;
    color: var(--gold-color);
}

.source-page, .style-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: 30px 20px;
}

.page-header {
    text-align: center;
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

.page-header p {
    opacity: 0.6;
}

/* 标签页 */
.source-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
}

.source-tab {
    background: transparent;
    border: none;
    padding: 12px 20px;
    color: var(--dark-text);
    opacity: 0.6;
    cursor: pointer;
    font-size: 14px;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    margin-bottom: -1px;
}

.source-tab:hover {
    opacity: 1;
    color: var(--gold-color);
}

.source-tab.active {
    opacity: 1;
    color: var(--gold-color);
    border-bottom-color: var(--gold-color);
}

.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.source-content {
    min-height: 400px;
}

/* 项目介绍卡片 */
.intro-card,
.explain-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 24px 28px;
}

body.theme-light .intro-card,
body.theme-light .explain-card {
    background: #fff;
    border-color: var(--light-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.intro-card h2,
.explain-card h2 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--gold-color);
}

.intro-card h3,
.explain-card h3 {
    font-size: 16px;
    margin: 20px 0 12px;
    color: var(--dark-text);
}

.lead {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.85;
    margin-bottom: 16px;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0 0 16px;
}

.feature-list li {
    padding: 8px 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
    font-size: 14px;
    line-height: 1.7;
}

body.theme-light .feature-list li {
    border-bottom-color: var(--light-border);
}

/* 技术栈网格 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin: 16px 0;
}

.tech-item {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    padding: 14px 10px;
    text-align: center;
    transition: all 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-2px);
    border-color: var(--gold-color);
}

.tech-icon {
    font-size: 28px;
    margin-bottom: 6px;
}

.tech-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--gold-color);
    margin-bottom: 2px;
}

.tech-desc {
    font-size: 12px;
    opacity: 0.6;
}

/* 代码块 */
.code-block {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    padding: 16px 18px;
    overflow-x: auto;
    margin: 12px 0;
}

.code-block.mini {
    padding: 12px 14px;
    margin: 10px 0;
}

.code-block pre {
    margin: 0;
    color: #e6e6e6;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.7;
    white-space: pre;
}

body.theme-light .code-block {
    background: #1e1e1e;
    border-color: #333;
}

body.theme-light .code-block pre {
    color: #e6e6e6;
}

/* 代码解析 */
.explain-item {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
}

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

body.theme-light .explain-item {
    border-bottom-color: var(--light-border);
}

.explain-item h3 {
    color: var(--gold-color);
    margin-top: 0;
}

.explain-item p {
    font-size: 14px;
    line-height: 1.7;
    opacity: 0.85;
    margin: 8px 0;
}

.explain-note {
    background: rgba(255, 215, 0, 0.06);
    border-left: 3px solid var(--gold-color);
    padding: 10px 14px;
    border-radius: 0 6px 6px 0;
    font-size: 13px !important;
    opacity: 0.9 !important;
}

body.theme-light .explain-note {
    background: rgba(184, 134, 11, 0.08);
}

code {
    background: rgba(0, 0, 0, 0.4);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 12px;
    color: #ffcd6b;
}

body.theme-light code {
    background: rgba(0, 0, 0, 0.06);
    color: #b8860b;
}

/* 稀有度徽章 */
.rarity-list {
    list-style: none;
    padding: 0;
    margin: 12px 0;
}

.rarity-list li {
    padding: 8px 0;
    font-size: 14px;
    line-height: 1.7;
}

.rarity-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 13px;
    margin-right: 8px;
}

.rarity-badge.gold {
    background: rgba(255, 215, 0, 0.15);
    color: #FFD700;
    border: 1px solid rgba(255, 215, 0, 0.3);
}

.rarity-badge.silver {
    background: rgba(192, 192, 192, 0.15);
    color: #C0C0C0;
    border: 1px solid rgba(192, 192, 192, 0.3);
}

.rarity-badge.copper {
    background: rgba(205, 127, 50, 0.15);
    color: #CD7F32;
    border: 1px solid rgba(205, 127, 50, 0.3);
}

.source-code {
    background: rgba(0, 0, 0, 0.9);
    border-radius: 12px;
    padding: 20px;
    overflow-x: auto;
    max-height: 600px;
    overflow-y: auto;
}

.source-code pre {
    color: #ddd;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
}

.style-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.style-card {
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

body.theme-dark .style-card {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.06);
}

body.theme-light .style-card {
    background: #fff;
    border-color: var(--light-border);
}

body.theme-wave .style-card {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.06);
}

.style-card:hover {
    transform: translateY(-5px);
}

.style-card.active {
    border-color: var(--gold-color);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

.style-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.style-name {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 8px;
}

.style-desc {
    font-size: 13px;
    opacity: 0.6;
}

.toast {
    position: fixed;
    top: 80px;
    right: 20px;
    padding: 15px 25px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 1000;
    animation: fade-in 0.3s ease;
}

body.theme-dark .toast {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

body.theme-light .toast {
    background: #fff;
    border: 1px solid var(--light-border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (max-width: 768px) {
    .filter-bar { top: 62px; }
    .achievements-list { grid-template-columns: 1fr; }
    .header-content {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .header-left {
        text-align: center;
    }

    .header-right {
        flex-direction: column;
        width: 100%;
    }

    .stats-card {
        width: 100%;
        justify-content: center;
    }

    .nav-container {
        flex-direction: column;
        gap: 10px;
    }

    .nav-right {
        gap: 10px;
    }

    .filter-bar {
        flex-wrap: wrap;
    }

    .achievements-list {
        gap: 16px;
    }

    .achievement-card {
        flex-wrap: wrap;
        padding: 16px;
    }

    .card-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .card-content {
        width: calc(100% - 70px);
    }

    .card-checkbox {
        width: 100%;
        justify-content: flex-end;
    }
}

/* ==========================
   Canvas 动态背景
   ========================== */

#background-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.5s ease;
}

@media (prefers-reduced-motion: reduce) {
    #background-canvas {
        display: none;
    }
}

.ripple-btn {
    position: relative;
    overflow: hidden;
}
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple-animation 600ms linear;
    pointer-events: none;
}
body.theme-light .ripple {
    background: rgba(0, 0, 0, 0.15);
}
@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.nav-bar {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 10px 0;
    transition: background var(--anim-duration) var(--ease-apple),
                border var(--anim-duration) var(--ease-apple);
}

.nav-title {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 16pt;
}

.nav-btn {
    text-decoration: none;
    color: var(--text-primary);
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 11pt;
    font-weight: 500;
    border: 1px solid transparent;
    background: transparent;
    display: inline-block;
    transition: all var(--anim-duration) var(--ease-apple);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--glow-bright);
    box-shadow: 0 0 15px var(--glow-effect);
    transform: translateY(-1px);
}
body.theme-light .nav-btn:hover {
    background: rgba(0, 0, 0, 0.03);
}

.nav-btn.active {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--glow-color);
    color: var(--glow-bright);
    box-shadow: 0 0 20px var(--glow-effect), inset 0 0 8px var(--glow-effect);
    text-shadow: 0 0 5px var(--glow-effect);
}

.nav-btn:active, .ripple-btn:active {
    transform: scale(0.96) !important;
}

.stats-card {
    background: var(--card-glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2), 0 0 0px transparent;
    transition: transform var(--anim-duration) var(--ease-apple),
                box-shadow var(--anim-duration) var(--ease-apple),
                border-color var(--anim-duration) var(--ease-apple);
}

.stats-card {
    border-left: 4px solid var(--glow-color);
}
.visitor-stats-card {
    border-left: 4px solid #00E5FF;
}

.stats-card:hover {
    transform: translateY(-6px);
    border-color: var(--glow-bright);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3),
                0 0 25px var(--glow-effect);
}
.visitor-stats-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3),
                0 0 25px rgba(0, 229, 255, 0.4);
}

.stats-value {
    font-family: 'SF Pro Display', -apple-system, sans-serif;
    font-size: 15pt;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 0 0 10px var(--glow-effect);
    transition: text-shadow var(--anim-duration) var(--ease-apple);
}
.stats-card:hover .stats-value {
    text-shadow: 0 0 18px var(--glow-bright);
}

.stats-label {
    color: var(--text-desc-color);
    font-size: 10pt;
    display: block;
    margin-bottom: 4px;
}

.filter-bar {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    transition: all var(--anim-duration) var(--ease-apple);
}

.select-wrapper {
    position: relative;
    display: inline-block;
}
.select-wrapper::after {
    content: '▾';
    font-size: 12px;
    color: var(--text-desc-color);
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    transition: transform var(--anim-duration) var(--ease-apple), color var(--anim-duration) var(--ease-apple);
}
.select-wrapper:hover::after {
    color: var(--glow-bright);
    transform: translateY(-50%) scale(1.2);
}

.filter-select {
    appearance: none;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 8px 32px 8px 14px;
    border-radius: 8px;
    font-size: 10.5pt;
    cursor: pointer;
    outline: none;
    transition: all var(--anim-duration) var(--ease-apple);
}
body.theme-light .filter-select {
    background: rgba(0, 0, 0, 0.03);
}

.filter-select:hover {
    border-color: var(--glow-color);
    box-shadow: 0 0 10px var(--glow-effect);
    background: rgba(255, 255, 255, 0.08);
}
.filter-select:focus {
    border-color: var(--glow-bright);
    box-shadow: 0 0 15px var(--glow-effect);
}

.filter-select option {
    background-color: #242424;
    color: #FFFFFF;
    padding: 10px;
}
body.theme-light .filter-select option {
    background-color: #FFFFFF;
    color: #333333;
}

.search-wrapper {
    position: relative;
    flex-grow: 1;
    max-width: 350px;
}

.search-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 10.5pt;
    outline: none;
    transition: all var(--anim-duration) var(--ease-apple);
}
body.theme-light .search-input {
    background: rgba(0, 0, 0, 0.03);
}

.search-input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--glow-bright);
    box-shadow: 0 0 20px var(--glow-effect),
                inset 0 0 6px var(--glow-effect);
}

/* ==========================================================================
   查看源码页面 (Source Page) 商业化重构样式
   ========================================================================== */

.source-page {
    max-width: 1100px;
    margin: 80px auto 40px auto;
    padding: 0 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.page-header {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-bottom: 3px solid var(--glow-color);
    border-radius: 16px;
    padding: 30px 40px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), 0 0 15px var(--glow-effect);
}
.page-title {
    color: var(--text-primary);
    font-size: 24pt;
    font-weight: 700;
    margin: 0 0 8px 0;
    letter-spacing: -0.5px;
}
.page-subtitle {
    color: var(--text-desc-color);
    font-size: 11pt;
    margin: 0;
    opacity: 0.85;
}

.source-tabs {
    display: flex;
    gap: 8px;
    background: rgba(0, 0, 0, 0.2);
    padding: 6px;
    border-radius: 12px;
    margin-bottom: 25px;
    border: 1px solid var(--glass-border);
}
.source-tab {
    flex: 1;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-desc-color);
    padding: 12px 20px;
    font-size: 11pt;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--anim-duration) var(--ease-apple);
    outline: none;
}
.source-tab:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}
.source-tab.active {
    background: var(--card-glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: var(--glass-border);
    color: var(--glow-bright);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), 0 0 10px var(--glow-effect);
}
.source-tab:active {
    transform: scale(0.98);
}

.tab-panel {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--anim-duration) var(--ease-apple),
                transform var(--anim-duration) var(--ease-apple);
}
.tab-panel.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.intro-card, .explain-card {
    background: var(--card-glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 35px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: transform var(--anim-duration) var(--ease-apple),
                box-shadow var(--anim-duration) var(--ease-apple);
}
.intro-card:hover, .explain-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow-effect);
}

.section-title {
    color: var(--text-primary);
    font-size: 18pt;
    margin-top: 0;
    margin-bottom: 15px;
    border-left: 4px solid var(--glow-color);
    padding-left: 12px;
}
.sub-title {
    color: var(--text-primary);
    font-size: 13pt;
    margin-top: 30px;
    margin-bottom: 15px;
    opacity: 0.9;
}
.section-desc {
    color: var(--text-desc-color);
    line-height: 1.6;
    font-size: 11pt;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 15px;
    margin: 20px 0;
}
.tech-item {
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 20px;
    position: relative;
    overflow: hidden;
    transition: all var(--anim-duration) var(--ease-apple);
}
.tech-indicator {
    width: 12px;
    height: 3px;
    background: var(--glow-color);
    border-radius: 2px;
    margin-bottom: 12px;
    transition: width var(--anim-duration) var(--ease-apple);
}
.tech-name {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 11pt;
    margin-bottom: 6px;
}
.tech-desc {
    color: var(--text-desc-color);
    font-size: 9.5pt;
    line-height: 1.4;
}
.tech-item:hover {
    border-color: var(--glow-color);
    background: rgba(255, 255, 255, 0.02);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
.tech-item:hover .tech-indicator {
    width: 30px;
    background: var(--glow-bright);
}

.code-block-wrapper {
    position: relative;
    margin: 15px 0;
}
.code-block {
    background: rgba(15, 15, 15, 0.85) !important;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 20px;
    overflow-x: auto;
    font-family: "SF Mono", Cascadia Code, Consolas, monospace;
    font-size: 10pt;
    line-height: 1.6;
    color: #E0E0E0;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}
.copy-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    color: var(--text-desc-color);
    padding: 6px;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--anim-duration) var(--ease-apple);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.copy-btn:hover {
    background: var(--glow-color);
    color: #FFF;
    border-color: var(--glow-bright);
}
.copy-btn.copied {
    background: #2e7d32;
    color: #FFF;
    border-color: #4caf50;
}

.tip-box {
    background: rgba(255, 255, 255, 0.02);
    border-left: 4px solid var(--glow-color);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    margin: 15px 0;
}
.tip-label {
    display: block;
    color: var(--glow-bright);
    font-size: 9.5pt;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}
.tip-content {
    color: var(--text-desc-color);
    margin: 0;
    font-size: 10.5pt;
    line-height: 1.5;
}

.feature-list, .rarity-list {
    list-style: none;
    padding-left: 0;
    margin: 15px 0;
}
.feature-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 10px;
    color: var(--text-desc-color);
    font-size: 10.5pt;
    line-height: 1.5;
}
.feature-list li::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 9px;
    width: 5px;
    height: 5px;
    background: var(--glow-color);
    border-radius: 50%;
}
.rarity-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--text-desc-color);
    font-size: 10.5pt;
}
.rarity-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 9pt;
    font-weight: 600;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
}
.rarity-badge.gold { color: #FFD700; border-color: rgba(255,215,0,0.3); }
.rarity-badge.silver { color: #C0C0C0; border-color: rgba(192,192,192,0.3); }
.rarity-badge.bronze { color: #CD7F32; border-color: rgba(205,127,50,0.3); }

/* ==========================================================================
   导航栏内嵌统计信息 (Nav Stats)
   ========================================================================== */

.nav-stats {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    color: var(--glow-bright);
    font-size: 10pt;
    font-weight: 600;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: opacity var(--anim-duration) var(--ease-apple),
                visibility var(--anim-duration) var(--ease-apple),
                transform var(--anim-duration) var(--ease-apple);
    white-space: nowrap;
}
.nav-stats.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}
.nav-stats-icon {
    font-size: 12px;
}
body.theme-light .nav-stats {
    background: rgba(0, 0, 0, 0.05);
}

/* ==========================================================================
   项目合作页面 (Cooperation Page)
   ========================================================================== */

.cooperation-page {
    max-width: 1100px;
    margin: 80px auto 40px auto;
    padding: 0 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.cooperation-page .page-header {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-bottom: 3px solid var(--glow-color);
    border-radius: 16px;
    padding: 30px 40px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), 0 0 15px var(--glow-effect);
}

.coop-intro-card {
    background: var(--card-glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 35px;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: transform var(--anim-duration) var(--ease-apple),
                box-shadow var(--anim-duration) var(--ease-apple);
}
.coop-intro-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow-effect);
}

.coop-section {
    margin-bottom: 30px;
}
.coop-section .section-title {
    color: var(--text-primary);
    font-size: 18pt;
    margin-bottom: 20px;
    border-left: 4px solid var(--glow-color);
    padding-left: 12px;
}

.coop-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 15px;
}
.coop-grid.two-col {
    grid-template-columns: repeat(2, 1fr);
}

.coop-card {
    background: var(--card-glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 28px;
    transition: all var(--anim-duration) var(--ease-apple);
}
.coop-card:hover {
    transform: translateY(-4px);
    border-color: var(--glow-color);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25), 0 0 15px var(--glow-effect);
}

.coop-icon {
    color: var(--glow-bright);
    margin-bottom: 16px;
    opacity: 0.9;
}
.coop-card-title {
    color: var(--text-primary);
    font-size: 12pt;
    font-weight: 600;
    margin-bottom: 8px;
}
.coop-card-desc {
    color: var(--text-desc-color);
    font-size: 10pt;
    line-height: 1.5;
}

.coop-list {
    list-style: none;
    padding-left: 0;
    margin: 10px 0;
}
.coop-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
    color: var(--text-desc-color);
    font-size: 10.5pt;
    line-height: 1.5;
}
.coop-list li::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 9px;
    width: 5px;
    height: 5px;
    background: var(--glow-color);
    border-radius: 50%;
}

.timeline {
    position: relative;
    padding-left: 30px;
    margin-top: 20px;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--glow-color), rgba(255,255,255,0.1));
}
.timeline-item {
    position: relative;
    margin-bottom: 24px;
}
.timeline-dot {
    position: absolute;
    left: -26px;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--glow-color);
    border: 2px solid var(--card-glass-bg);
    box-shadow: 0 0 8px var(--glow-effect);
}
.timeline-title {
    color: var(--text-primary);
    font-size: 11pt;
    font-weight: 600;
    margin-bottom: 4px;
}
.timeline-desc {
    color: var(--text-desc-color);
    font-size: 10pt;
    line-height: 1.5;
    margin: 0;
}

.contact-card {
    background: var(--card-glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: transform var(--anim-duration) var(--ease-apple),
                box-shadow var(--anim-duration) var(--ease-apple);
}
.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow-effect);
}
.contact-grid {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
    flex-wrap: wrap;
}
.contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 11pt;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--anim-duration) var(--ease-apple);
}
.contact-item:hover {
    background: var(--glow-color);
    color: #FFF;
    border-color: var(--glow-bright);
    box-shadow: 0 0 15px var(--glow-effect);
    transform: translateY(-2px);
}
.contact-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

@media (max-width: 768px) {
    .coop-grid.two-col {
        grid-template-columns: 1fr;
    }
    .cooperation-page {
        margin-top: 70px;
        padding: 0 15px;
    }
    .coop-card {
        padding: 20px;
    }
}