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

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;600;700&family=ZCOOL+XiaoWei&display=swap');

:root {
    --ink-black: #1a1a1a;
    --ink-dark: #2d2d2d;
    --ink-gray: #4a4a4a;
    --ink-light: #7a7a7a;
    --ink-pale: #b0b0b0;
    --paper-cream: #f8f6f0;
    --paper-light: #faf9f5;
    --accent-gray: #5a5a5a;
}

body {
    font-family: 'Noto Serif SC', 'ZCOOL XiaoWei', serif;
    background: var(--paper-cream);
    color: var(--ink-black);
    min-height: 100vh;
    line-height: 1.8;
    overflow-x: hidden;
}

.ink-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.ink-stain {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(26, 26, 26, 0.05) 0%, transparent 70%);
    filter: blur(40px);
}

.stain-1 {
    top: 10%;
    right: -5%;
    width: 400px;
    height: 400px;
}

.stain-2 {
    bottom: 15%;
    left: -8%;
    width: 500px;
    height: 500px;
}

.stain-3 {
    top: 50%;
    left: 30%;
    width: 300px;
    height: 300px;
}

.bamboo-container {
    position: absolute;
    width: 100%;
    height: 100%;
}

.bamboo {
    position: absolute;
    width: 8px;
    background: linear-gradient(to bottom, 
        rgba(45, 45, 45, 0.08) 0%, 
        rgba(45, 45, 45, 0.15) 50%, 
        rgba(45, 45, 45, 0.08) 100%);
    border-radius: 4px;
}

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(248, 246, 240, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo-char {
    font-size: 56px;
    font-weight: 700;
    color: var(--ink-black);
    line-height: 1;
    font-family: 'ZCOOL XiaoWei', serif;
}

.logo-text h1 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 8px;
    color: var(--ink-dark);
    margin-bottom: 4px;
}

.logo-sub {
    font-size: 12px;
    color: var(--ink-light);
    letter-spacing: 4px;
    font-weight: 300;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-item {
    padding: 12px 24px;
    background: transparent;
    border: none;
    color: var(--ink-gray);
    font-size: 15px;
    cursor: pointer;
    font-family: 'Noto Serif SC', serif;
    transition: all 0.3s ease;
    position: relative;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ink-pale);
    transition: all 0.3s ease;
}

.nav-item:hover {
    color: var(--ink-dark);
}

.nav-item:hover .nav-dot {
    background: var(--ink-gray);
}

.nav-item.active {
    color: var(--ink-black);
}

.nav-item.active .nav-dot {
    background: var(--ink-black);
    transform: scale(1.3);
}

.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 32px;
    position: relative;
    z-index: 10;
}

.page {
    display: none;
    animation: fadeInUp 0.5s ease;
}

.page.active {
    display: block;
}

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

.hero {
    padding: 80px 40px;
    text-align: center;
    background: var(--paper-light);
    border: 1px solid rgba(26, 26, 26, 0.06);
    position: relative;
    margin-bottom: 64px;
}

.hero::before,
.hero::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    border: 2px solid rgba(26, 26, 26, 0.1);
}

.hero::before {
    top: 16px;
    left: 16px;
    border-right: none;
    border-bottom: none;
}

.hero::after {
    bottom: 16px;
    right: 16px;
    border-left: none;
    border-top: none;
}

.hero-ink {
    position: relative;
    padding: 40px;
}

.hero-poetry {
    margin-bottom: 32px;
}

.hero-line {
    font-size: 36px;
    font-weight: 300;
    color: var(--ink-dark);
    letter-spacing: 12px;
    margin: 16px 0;
    line-height: 1.6;
}

.hero-author {
    font-size: 18px;
    color: var(--ink-light);
    letter-spacing: 6px;
    padding-top: 24px;
    border-top: 1px solid rgba(26, 26, 26, 0.1);
    display: inline-block;
}

.hero-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
}

.ink-btn {
    padding: 14px 32px;
    background: transparent;
    border: 1px solid var(--ink-pale);
    color: var(--ink-gray);
    font-size: 14px;
    cursor: pointer;
    font-family: 'Noto Serif SC', serif;
    transition: all 0.3s ease;
    letter-spacing: 3px;
}

.ink-btn:hover {
    border-color: var(--ink-gray);
    color: var(--ink-dark);
    transform: translateY(-2px);
}

.ink-btn.primary {
    background: var(--ink-black);
    color: var(--paper-cream);
    border-color: var(--ink-black);
}

.ink-btn.primary:hover {
    background: var(--ink-dark);
    border-color: var(--ink-dark);
}

.section {
    margin-bottom: 80px;
}

.section-title {
    font-size: 24px;
    font-weight: 400;
    color: var(--ink-dark);
    text-align: center;
    margin-bottom: 48px;
    letter-spacing: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.section-title .line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--ink-pale), transparent);
    max-width: 120px;
}

.poetry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.poetry-card {
    background: var(--paper-light);
    padding: 32px;
    border: 1px solid rgba(26, 26, 26, 0.06);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.poetry-card:hover {
    border-color: rgba(26, 26, 26, 0.15);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(26, 26, 26, 0.08);
}

.poetry-card .card-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--ink-dark);
    margin-bottom: 12px;
    letter-spacing: 4px;
}

.poetry-card .card-author {
    font-size: 14px;
    color: var(--ink-light);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.poetry-card .card-preview {
    font-size: 16px;
    color: var(--ink-gray);
    line-height: 2;
    letter-spacing: 3px;
}

.poetry-card .card-favorite {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.6;
}

.poetry-card .card-favorite:hover {
    transform: scale(1.2);
    opacity: 1;
}

.poetry-card .card-favorite.active {
    opacity: 1;
}

.filter-bar {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--ink-pale);
    color: var(--ink-gray);
    font-size: 14px;
    cursor: pointer;
    font-family: 'Noto Serif SC', serif;
    transition: all 0.3s ease;
    letter-spacing: 2px;
}

.filter-btn:hover {
    border-color: var(--ink-gray);
    color: var(--ink-dark);
}

.filter-btn.active {
    background: var(--ink-black);
    color: var(--paper-cream);
    border-color: var(--ink-black);
}

.poetry-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.poetry-item {
    background: var(--paper-light);
    padding: 28px 32px;
    border: 1px solid rgba(26, 26, 26, 0.06);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.poetry-item:hover {
    border-color: rgba(26, 26, 26, 0.15);
    padding-left: 40px;
}

.poetry-item .item-left {
    flex: 1;
}

.poetry-item .item-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink-dark);
    margin-bottom: 8px;
    letter-spacing: 4px;
}

.poetry-item .item-meta {
    font-size: 14px;
    color: var(--ink-light);
    letter-spacing: 2px;
}

.poetry-item .item-favorite {
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.5;
}

.poetry-item .item-favorite:hover {
    transform: scale(1.2);
    opacity: 1;
}

.poetry-item .item-favorite.active {
    opacity: 1;
}

.poet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.poet-card {
    background: var(--paper-light);
    border: 1px solid rgba(26, 26, 26, 0.06);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.poet-card:hover {
    border-color: rgba(26, 26, 26, 0.15);
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(26, 26, 26, 0.1);
}

.poet-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #e8e6de 0%, #d8d6ce 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    filter: grayscale(100%);
}

.poet-info {
    padding: 28px;
    text-align: center;
}

.poet-info h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--ink-dark);
    margin-bottom: 8px;
    letter-spacing: 6px;
}

.poet-info .poet-dynasty {
    font-size: 14px;
    color: var(--ink-light);
    margin-bottom: 16px;
    letter-spacing: 3px;
}

.poet-info .poet-desc {
    font-size: 14px;
    color: var(--ink-gray);
    line-height: 1.8;
}

.game-area {
    background: var(--paper-light);
    padding: 48px;
    border: 1px solid rgba(26, 26, 26, 0.06);
}

.game-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.game-card {
    text-align: center;
    padding: 48px 32px;
    border: 1px solid rgba(26, 26, 26, 0.08);
    transition: all 0.3s ease;
}

.game-card:hover {
    border-color: rgba(26, 26, 26, 0.15);
    transform: translateY(-4px);
}

.game-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.game-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--ink-dark);
    margin-bottom: 12px;
    letter-spacing: 6px;
}

.game-card p {
    font-size: 14px;
    color: var(--ink-light);
    margin-bottom: 24px;
    letter-spacing: 2px;
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 24px;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(26, 26, 26, 0.08);
    flex-wrap: wrap;
    gap: 16px;
}

.game-info {
    font-size: 16px;
    color: var(--ink-gray);
    letter-spacing: 3px;
}

.game-info .separator {
    margin: 0 12px;
    color: var(--ink-pale);
}

.score {
    font-size: 16px;
    color: var(--ink-dark);
    font-weight: 600;
    letter-spacing: 2px;
}

.question-area {
    text-align: center;
    padding: 40px 20px;
}

.question-text {
    font-size: 24px;
    color: var(--ink-dark);
    line-height: 2;
    letter-spacing: 4px;
    margin-bottom: 40px;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    max-width: 600px;
    margin: 0 auto;
}

.option-btn {
    padding: 18px 24px;
    background: transparent;
    border: 1px solid var(--ink-pale);
    color: var(--ink-gray);
    font-size: 16px;
    cursor: pointer;
    font-family: 'Noto Serif SC', serif;
    transition: all 0.3s ease;
    letter-spacing: 3px;
}

.option-btn:hover:not(:disabled) {
    border-color: var(--ink-gray);
    color: var(--ink-dark);
}

.option-btn.correct {
    background: var(--ink-black);
    color: var(--paper-cream);
    border-color: var(--ink-black);
}

.option-btn.incorrect {
    background: rgba(26, 26, 26, 0.05);
    border-color: var(--ink-light);
    color: var(--ink-light);
}

.option-btn:disabled {
    cursor: not-allowed;
}

.game-actions {
    text-align: center;
    margin-top: 40px;
}

.next-btn {
    padding: 14px 48px;
    background: var(--ink-black);
    color: var(--paper-cream);
    border: 1px solid var(--ink-black);
    font-size: 15px;
    cursor: pointer;
    font-family: 'Noto Serif SC', serif;
    transition: all 0.3s ease;
    letter-spacing: 4px;
}

.next-btn:hover {
    background: var(--ink-dark);
    border-color: var(--ink-dark);
    transform: translateY(-2px);
}

.result-area {
    text-align: center;
    padding: 40px 20px;
}

.result-area h3 {
    font-size: 28px;
    color: var(--ink-dark);
    margin-bottom: 24px;
    letter-spacing: 8px;
}

.result-score {
    font-size: 80px;
    font-weight: 300;
    color: var(--ink-black);
    margin-bottom: 24px;
    font-family: 'ZCOOL XiaoWei', serif;
}

.result-desc {
    font-size: 16px;
    color: var(--ink-gray);
    margin-bottom: 32px;
    letter-spacing: 3px;
}

.empty-state {
    text-align: center;
    padding: 80px 20px;
}

.empty-icon {
    font-size: 72px;
    margin-bottom: 24px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 16px;
    color: var(--ink-gray);
    margin-bottom: 8px;
    letter-spacing: 3px;
}

.empty-sub {
    font-size: 14px;
    color: var(--ink-light);
    letter-spacing: 2px;
}

.favorites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 26, 26, 0.6);
}

.modal-content {
    position: relative;
    background: var(--paper-cream);
    max-width: 700px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 48px;
    border: 1px solid rgba(26, 26, 26, 0.1);
}

.modal-close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--ink-pale);
    color: var(--ink-gray);
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    border-color: var(--ink-gray);
    color: var(--ink-dark);
    transform: rotate(90deg);
}

.modal-poetry-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--ink-dark);
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: 8px;
}

.modal-poetry-author {
    font-size: 16px;
    color: var(--ink-light);
    text-align: center;
    margin-bottom: 32px;
    letter-spacing: 4px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}

.modal-poetry-content {
    text-align: center;
    font-size: 22px;
    color: var(--ink-dark);
    line-height: 2.4;
    letter-spacing: 6px;
    margin-bottom: 32px;
}

.modal-poetry-appreciation {
    padding-top: 32px;
    border-top: 1px solid rgba(26, 26, 26, 0.08);
}

.modal-poetry-appreciation h4 {
    font-size: 18px;
    color: var(--ink-dark);
    margin-bottom: 16px;
    letter-spacing: 4px;
    text-align: center;
}

.modal-poetry-appreciation p {
    font-size: 15px;
    color: var(--ink-gray);
    line-height: 2;
    letter-spacing: 2px;
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(26, 26, 26, 0.08);
}

.poet-modal-content {
    text-align: center;
}

.poet-modal-icon {
    font-size: 96px;
    margin-bottom: 24px;
    filter: grayscale(100%);
}

.poet-modal-name {
    font-size: 36px;
    font-weight: 600;
    color: var(--ink-dark);
    margin-bottom: 8px;
    letter-spacing: 8px;
}

.poet-modal-meta {
    font-size: 16px;
    color: var(--ink-light);
    margin-bottom: 32px;
    letter-spacing: 4px;
}

.poet-modal-desc {
    font-size: 15px;
    color: var(--ink-gray);
    line-height: 2;
    letter-spacing: 2px;
    text-align: left;
    padding: 32px;
    border-top: 1px solid rgba(26, 26, 26, 0.08);
    border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}

.poet-modal-works {
    margin-top: 32px;
    text-align: left;
}

.poet-modal-works h4 {
    font-size: 16px;
    color: var(--ink-dark);
    margin-bottom: 16px;
    letter-spacing: 4px;
    text-align: center;
}

.footer {
    text-align: center;
    padding: 48px;
    margin-top: 64px;
    border-top: 1px solid rgba(26, 26, 26, 0.08);
}

.footer p {
    font-size: 14px;
    color: var(--ink-light);
    letter-spacing: 6px;
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: 24px;
        padding: 20px;
    }

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

    .logo-char {
        font-size: 44px;
    }

    .logo-text h1 {
        font-size: 20px;
        letter-spacing: 4px;
    }

    .hero-line {
        font-size: 24px;
        letter-spacing: 6px;
    }

    .hero-controls {
        flex-direction: column;
        align-items: center;
    }

    .poetry-grid,
    .poet-grid,
    .favorites-grid {
        grid-template-columns: 1fr;
    }

    .game-header {
        flex-direction: column;
        text-align: center;
    }

    .modal-content {
        padding: 32px 24px;
    }
}