:root {
    --color-primary: #403835;
    --color-accent1: #e9d5cf;
    --color-accent2: #a9b9a6;
    --color-accent3: #9385ab;
    --color-bg: #faf7f5;
    --color-card: #ffffff;
    --color-text: #2c2523;
    --color-text-light: #6b5e5a;
    --color-border: #e0d6d1;
    --color-hero-overlay: rgba(64, 56, 53, 0.88);
    --shadow-sm: 0 2px 8px rgba(64, 56, 53, 0.08);
    --shadow-md: 0 4px 20px rgba(64, 56, 53, 0.12);
    --shadow-lg: 0 8px 40px rgba(64, 56, 53, 0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    color: var(--color-accent3);
    text-decoration: none;
    transition: color var(--transition);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Header ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(64, 56, 53, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(233, 213, 207, 0.15);
    transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-accent1);
    font-weight: 700;
    font-size: 1.2rem;
    transition: opacity var(--transition);
}

.logo:hover {
    opacity: 0.85;
    color: var(--color-accent1);
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.main-nav a {
    color: var(--color-accent1);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
    background: rgba(233, 213, 207, 0.15);
    color: #fff;
}

.main-nav a i {
    margin-right: 4px;
    font-size: 0.85rem;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-accent1);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.menu-toggle:hover {
    background: rgba(233, 213, 207, 0.15);
}

/* ========== Hero ========== */
.hero {
    position: relative;
    min-height: 420px;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, #2a2220 40%, #1a1615 100%);
    z-index: 0;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(169, 185, 166, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 30%, rgba(147, 133, 171, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 80%, rgba(233, 213, 207, 0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.hero-sub {
    display: block;
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--color-accent1);
    letter-spacing: 4px;
    margin-top: 4px;
}

.hero-desc {
    color: rgba(233, 213, 207, 0.85);
    font-size: 1.05rem;
    max-width: 680px;
    margin: 0 auto 20px;
    line-height: 1.8;
}

.hero-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.meta-item {
    background: rgba(233, 213, 207, 0.12);
    color: var(--color-accent1);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.88rem;
    font-weight: 500;
    border: 1px solid rgba(233, 213, 207, 0.15);
}

.meta-item i {
    margin-right: 6px;
    color: var(--color-accent2);
}

.hero-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tag {
    background: rgba(147, 133, 171, 0.2);
    color: #d4cde0;
    padding: 4px 14px;
    border-radius: 14px;
    font-size: 0.82rem;
    font-weight: 500;
    border: 1px solid rgba(147, 133, 171, 0.25);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-decoration: none;
}

.btn-download {
    background: linear-gradient(135deg, var(--color-accent2), #8daa89);
    color: #fff;
    box-shadow: 0 4px 20px rgba(169, 185, 166, 0.4);
    font-size: 1.1rem;
    padding: 14px 40px;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(169, 185, 166, 0.55);
    color: #fff;
}

.btn-download:active {
    transform: translateY(0);
}

.btn-sm {
    background: linear-gradient(135deg, var(--color-accent3), #7b6d9a);
    color: #fff;
    padding: 8px 20px;
    font-size: 0.88rem;
    border-radius: var(--radius-sm);
}

.btn-sm:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(147, 133, 171, 0.4);
    color: #fff;
}

/* ========== Section Common ========== */
.section {
    padding: 70px 0;
}

.section:nth-child(even) {
    background: #f3eeeb;
}

.section-title {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 40px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent2), var(--color-accent3));
    margin: 12px auto 0;
    border-radius: 2px;
}

.section-title i {
    margin-right: 8px;
    color: var(--color-accent3);
}

/* ========== News ========== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.news-date {
    color: var(--color-accent3);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.news-date i {
    margin-right: 6px;
}

.news-heading {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-excerpt {
    color: var(--color-text-light);
    font-size: 0.92rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-accent3);
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap var(--transition);
}

.news-link:hover {
    gap: 10px;
    color: var(--color-primary);
}

/* ========== Gallery ========== */
.gallery {
    background: var(--color-primary) !important;
}

.gallery .section-title {
    color: var(--color-accent1);
}

.gallery .section-title::after {
    background: linear-gradient(90deg, var(--color-accent1), var(--color-accent3));
}

.gallery .section-title i {
    color: var(--color-accent1);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.gallery-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    position: relative;
    aspect-ratio: 16/10;
    background: #2a2220;
}

.gallery-item::after {
    content: '\f00e';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(64, 56, 53, 0.5);
    color: #fff;
    font-size: 1.8rem;
    opacity: 0;
    transition: opacity var(--transition);
}

.gallery-item:hover::after {
    opacity: 1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.92);
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.lightbox.active {
    display: flex;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 85vh;
    border-radius: var(--radius-md);
    box-shadow: 0 0 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: #fff;
    font-size: 1.4rem;
    cursor: pointer;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
    backdrop-filter: blur(4px);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lightbox-close {
    top: 20px;
    right: 20px;
}

.lightbox-prev {
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

/* ========== Reviews ========== */
.reviews-summary {
    text-align: center;
    margin-bottom: 36px;
}

.rating-big {
    margin-bottom: 20px;
}

.rating-number {
    font-size: 3.2rem;
    font-weight: 900;
    color: var(--color-primary);
    line-height: 1;
}

.rating-stars {
    color: #f0b429;
    font-size: 1.4rem;
    margin: 8px 0;
    letter-spacing: 4px;
}

.rating-count {
    color: var(--color-text-light);
    font-size: 0.92rem;
}

.review-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.review-tag {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.review-tag i {
    margin-right: 6px;
    color: var(--color-accent3);
}

.reviews-carousel {
    position: relative;
    overflow: hidden;
}

.review-track {
    display: flex;
    gap: 24px;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.review-card {
    flex: 0 0 calc(33.333% - 16px);
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.review-avatar {
    font-size: 2.4rem;
    color: var(--color-accent2);
}

.review-name {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 0.95rem;
}

.review-stars {
    color: #f0b429;
    font-size: 0.82rem;
    letter-spacing: 2px;
    margin-top: 2px;
}

.review-text {
    color: var(--color-text-light);
    font-size: 0.92rem;
    line-height: 1.75;
}

.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 28px;
}

.carousel-btn {
    background: var(--color-primary);
    color: var(--color-accent1);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: all var(--transition);
}

.carousel-btn:hover {
    background: var(--color-accent3);
    color: #fff;
}

.carousel-dots {
    display: flex;
    gap: 8px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

.carousel-dot.active {
    background: var(--color-accent3);
    transform: scale(1.2);
}

/* ========== Versions ========== */
.version-timeline {
    position: relative;
    padding-left: 36px;
}

.version-timeline::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--color-accent2), var(--color-accent3), var(--color-accent1));
    border-radius: 2px;
}

.version-item {
    position: relative;
    margin-bottom: 32px;
}

.version-item:last-child {
    margin-bottom: 0;
}

.version-marker {
    position: absolute;
    left: -36px;
    top: 20px;
    width: 32px;
    height: 32px;
    background: var(--color-accent3);
    border-radius: 50%;
    border: 4px solid var(--color-bg);
    box-shadow: var(--shadow-sm);
    z-index: 1;
}

.version-item:first-child .version-marker {
    background: var(--color-accent2);
    width: 36px;
    height: 36px;
    left: -38px;
    top: 18px;
}

.version-card {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.version-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.version-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}

.version-number {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    background: linear-gradient(135deg, rgba(169, 185, 166, 0.15), rgba(147, 133, 171, 0.15));
    padding: 4px 16px;
    border-radius: 20px;
}

.version-date {
    color: var(--color-text-light);
    font-size: 0.88rem;
}

.version-date i {
    margin-right: 6px;
}

.version-info {
    display: flex;
    gap: 12px;
    margin-bottom: 14px;
}

.version-meta {
    color: var(--color-text-light);
    font-size: 0.85rem;
    background: var(--color-bg);
    padding: 4px 12px;
    border-radius: 12px;
}

.version-meta i {
    margin-right: 4px;
    color: var(--color-accent3);
}

.version-changes {
    list-style: none;
    margin-bottom: 16px;
}

.version-changes li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 6px;
    color: var(--color-text-light);
    font-size: 0.92rem;
}

.version-changes li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--color-accent2);
    border-radius: 50%;
}

/* ========== Guides ========== */
.guide-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
}

.filter-btn {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    padding: 8px 22px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    color: var(--color-text);
    font-family: var(--font-main);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-accent1);
    border-color: var(--color-primary);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.guide-card {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.guide-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.guide-card.hidden {
    display: none;
}

.guide-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(147, 133, 171, 0.15), rgba(169, 185, 166, 0.15));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--color-accent3);
    margin-bottom: 14px;
}

.guide-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.guide-card p {
    color: var(--color-text-light);
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 14px;
}

.guide-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.guide-difficulty,
.guide-recommend {
    font-size: 0.82rem;
    color: var(--color-text-light);
}

.guide-difficulty i,
.guide-recommend i {
    margin-right: 4px;
    color: var(--color-accent2);
    width: 14px;
    text-align: center;
}

/* ========== Chapters ========== */
.chapter-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.chapter-card {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

.chapter-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.chapter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent2), var(--color-accent3));
}

.chapter-card.character-chapter::before {
    background: linear-gradient(90deg, var(--color-accent3), var(--color-accent1));
}

.chapter-badge {
    display: inline-block;
    background: var(--color-accent2);
    color: #fff;
    padding: 3px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.chapter-badge.accent {
    background: var(--color-accent3);
}

.chapter-number {
    color: var(--color-text-light);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.chapter-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.chapter-synopsis {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.chapter-details {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chapter-details span {
    font-size: 0.82rem;
    color: var(--color-text-light);
}

.chapter-details span i {
    width: 16px;
    text-align: center;
    margin-right: 6px;
    color: var(--color-accent3);
}

/* ========== FAQ ========== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 12px;
}

.faq-question {
    width: 100%;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: all var(--transition);
}

.faq-question:hover {
    border-color: var(--color-accent3);
    box-shadow: var(--shadow-sm);
}

.faq-item.active .faq-question {
    border-color: var(--color-accent3);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    background: var(--color-primary);
    color: var(--color-accent1);
}

.faq-arrow {
    transition: transform var(--transition);
    font-size: 0.85rem;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--color-card);
    border: 1px solid var(--color-accent3);
    border-top: none;
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 20px 24px;
}

.faq-answer p {
    color: var(--color-text-light);
    font-size: 0.92rem;
    line-height: 1.8;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--color-primary);
    color: var(--color-accent1);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(233, 213, 207, 0.15);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #fff;
}

.footer-about {
    color: rgba(233, 213, 207, 0.7);
    font-size: 0.88rem;
    line-height: 1.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(233, 213, 207, 0.7);
    font-size: 0.88rem;
    transition: color var(--transition), padding-left var(--transition);
}

.footer-links a:hover {
    color: #fff;
    padding-left: 4px;
}

.footer-bottom {
    text-align: center;
    padding: 24px 0;
}

.footer-bottom p {
    color: rgba(233, 213, 207, 0.6);
    font-size: 0.85rem;
    margin-bottom: 6px;
}

.footer-legal {
    font-size: 0.8rem !important;
}

.footer-legal a {
    color: rgba(233, 213, 207, 0.6);
}

.footer-legal a:hover {
    color: #fff;
}

/* ========== Back to Top ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: var(--color-accent1);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 900;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-accent3);
    color: #fff;
    transform: translateY(-3px);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .guide-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .chapter-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .review-card {
        flex: 0 0 calc(50% - 12px);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    .main-nav {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(64, 56, 53, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        border-bottom: 1px solid rgba(233, 213, 207, 0.15);
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav a {
        padding: 12px 16px;
        font-size: 1rem;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding: 90px 0 40px;
        min-height: auto;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-sub {
        font-size: 1rem;
    }

    .hero-desc {
        font-size: 0.95rem;
    }

    .hero-meta {
        gap: 8px;
    }

    .meta-item {
        padding: 5px 12px;
        font-size: 0.82rem;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 28px;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .guide-grid {
        grid-template-columns: 1fr;
    }

    .chapter-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .review-card {
        flex: 0 0 100%;
    }

    .version-timeline {
        padding-left: 28px;
    }

    .version-marker {
        left: -28px;
        width: 24px;
        height: 24px;
    }

    .version-item:first-child .version-marker {
        width: 28px;
        height: 28px;
        left: -30px;
    }

    .version-timeline::before {
        left: 10px;
    }

    .lightbox {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 1.7rem;
    }

    .hero-meta {
        flex-direction: row;
        justify-content: center;
    }

    .meta-item {
        font-size: 0.78rem;
        padding: 4px 10px;
    }

    .tag {
        font-size: 0.76rem;
        padding: 3px 10px;
    }

    .btn-download {
        padding: 12px 32px;
        font-size: 1rem;
    }

    .guide-filters {
        gap: 6px;
    }

    .filter-btn {
        padding: 6px 16px;
        font-size: 0.82rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
}