/* ============================================================
   《讽刺与幽默》统一样式表
   合并自：首页 / 热门文章栏目页 / 文章详情页
   设计风格：轻拟态 (Neumorphism)
   版本：1.0
   ============================================================ */

/* ============================================================
   1. 全局变量 & 重置
   ============================================================ */
:root {
    --bg-color: #f0f4f8;
    --text-primary: #3a4a5c;
    --text-secondary: #6c7f8f;
    --accent-color: #de0b0b;
    --accent-bright: #ff3333;
    --shadow-light: rgba(255, 255, 255, 0.9);
    --shadow-dark: rgba(163, 177, 198, 0.4);
    --font-base: 'Noto Sans SC', -apple-system, PingFangSC-Regular, 'Microsoft Yahei', sans-serif;
    --font-title: 'Ma Shan Zheng', cursive;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-base);
}

body {
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================================
   2. 轻拟态通用组件
   ============================================================ */
.neu-flat {
    background: var(--bg-color);
    border-radius: 20px;
    box-shadow: 10px 10px 20px var(--shadow-dark),
    -10px -10px 20px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.neu-pressed {
    background: var(--bg-color);
    border-radius: 15px;
    box-shadow: inset 6px 6px 12px var(--shadow-dark),
    inset -6px -6px 12px var(--shadow-light);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.neu-btn {
    background: var(--bg-color);
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    font-family: var(--font-base);
}

.neu-btn:hover {
    transform: translateY(-2px);
    box-shadow: 8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
    color: var(--accent-color);
}

.neu-btn:active {
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
    transform: translateY(0);
}

/* ============================================================
   3. 导航栏
   ============================================================ */
header {
    background: var(--bg-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(163, 177, 198, 0.2);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background: var(--bg-color);
    border-radius: 20px;
    margin: 0 auto;
    box-shadow: 8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.logo {
    background: var(--bg-color);
    padding: 10px 20px;
    border-radius: 15px;
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
}

.logo img {
    height: 50px;
    display: block;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 10px;
}

.nav-links a {
    font-weight: 500;
    font-size: 1.1rem;
    padding: 10px 20px;
    border-radius: 12px;
    background: var(--bg-color);
    box-shadow: 4px 4px 8px var(--shadow-dark),
    -4px -4px 8px var(--shadow-light);
    transition: all 0.3s ease;
    color: var(--text-secondary);
    position: relative;
    font-family: var(--font-title);
    white-space: nowrap;
}

.nav-links a:hover {
    color: var(--accent-color);
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
    transform: translateY(-2px);
}

.nav-links a:active,
.nav-links a.active {
    box-shadow: inset 3px 3px 6px var(--shadow-dark),
    inset -3px -3px 6px var(--shadow-light);
    color: var(--accent-color);
    transform: translateY(0);
}

.mobile-menu-btn {
    display: none;
    width: 50px;
    height: 50px;
    border-radius: 15px;
    background: var(--bg-color);
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
    transition: all 0.3s ease;
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn:hover {
    color: var(--accent-color);
    box-shadow: 8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
}

.mobile-menu-btn:active {
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
}

/* ============================================================
   4. 侧边浮动工具栏
   ============================================================ */
.floating-toolbar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    align-items: center;
}

.toolbar-trigger {
    width: 50px;
    height: 120px;
    background: linear-gradient(135deg, #ff4444, #de0b0b);
    border-radius: 12px 0 0 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: -4px 4px 15px rgba(222, 11, 11, 0.4);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
    gap: 6px;
}

.toolbar-trigger:hover {
    width: 55px;
    box-shadow: -6px 6px 20px rgba(222, 11, 11, 0.5);
}

.toolbar-trigger i {
    color: #fff;
    font-size: 24px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.toolbar-trigger-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 4px;
}

.toolbar-panel {
    position: absolute;
    right: -280px;
    top: 50%;
    transform: translateY(-50%);
    width: 260px;
    background: var(--bg-color);
    border-radius: 20px 0 0 20px;
    padding: 20px;
    box-shadow: -10px 10px 30px var(--shadow-dark),
    10px -10px 30px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: right 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toolbar-panel.active {
    right: 50px;
}

.toolbar-panel h4 {
    color: var(--accent-color);
    font-size: 16px;
    margin-bottom: 15px;
    text-align: center;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(222, 11, 11, 0.2);
}

.qr-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.qr-item {
    text-align: center;
}

.qr-item img {
    width: 90px;
    height: 90px;
    border-radius: 12px;
    box-shadow: 4px 4px 10px var(--shadow-dark),
    -4px -4px 10px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.qr-item img:hover {
    transform: scale(1.05);
    box-shadow: 6px 6px 15px var(--shadow-dark),
    -6px -6px 15px var(--shadow-light);
}

.qr-item span {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.toolbar-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-color);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 3px 3px 6px var(--shadow-dark),
    -3px -3px 6px var(--shadow-light);
    transition: all 0.3s ease;
}

.toolbar-close:hover {
    color: var(--accent-color);
    box-shadow: 4px 4px 8px var(--shadow-dark),
    -4px -4px 8px var(--shadow-light);
}

/* ============================================================
   5. 首页 - 拼图区域 (主视觉)
   ============================================================ */
.movie-mv {
    width: 100%;
    height: 750px;
    position: relative;
    overflow: hidden;
    background: var(--bg-color);
    padding: 40px 0;
    border-radius: 0 0 30px 30px;
    box-shadow: inset 0 10px 20px rgba(163, 177, 198, 0.1);
    border-bottom: 1px solid rgba(17, 17, 17, 0.2);
}

.banner_slider {
    position: absolute;
    top: 40px;
    left: 0;
    height: calc(100% - 80px);
    display: flex;
}

.puzzle-grid {
    display: grid;
    grid-template-columns: repeat(8, 100px);
    grid-template-rows: repeat(6, 100px);
    gap: 8px;
    padding: 8px;
    list-style: none;
    width: calc(800px + 56px + 4px);
    flex-shrink: 0;
}

.puzzle-item {
    overflow: hidden;
    position: relative;
    border-radius: 16px;
    cursor: pointer;
    background: var(--bg-color);
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.puzzle-item:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 12px 12px 24px var(--shadow-dark),
    -12px -12px 24px var(--shadow-light);
    z-index: 10;
    border-color: rgba(222, 11, 11, 0.3);
}

.puzzle-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.5s ease;
    border-radius: 14px;
}

.puzzle-item:hover img {
    transform: scale(1.1);
}

/* 拼图网格定位 - 组1 */
.g1-1 { grid-area: 1 / 1 / span 2 / span 2; }
.g1-2 { grid-area: 3 / 1 / span 4 / span 2; }
.g1-3 { grid-area: 1 / 3 / span 2 / span 4; }
.g1-4 { grid-area: 3 / 3 / span 4 / span 3; }
.g1-5 { grid-area: 1 / 7 / span 1 / span 2; }
.g1-6 { grid-area: 2 / 7 / span 1 / span 2; }
.g1-7 { grid-area: 3 / 6 / span 3 / span 3; }
.g1-8 { grid-area: 6 / 6 / span 1 / span 1; }
.g1-9 { grid-area: 6 / 7 / span 1 / span 2; }

/* 拼图网格定位 - 组2 */
.g2-1 { grid-area: 1 / 1 / span 4 / span 4; }
.g2-2 { grid-area: 5 / 1 / span 2 / span 1; }
.g2-3 { grid-area: 5 / 2 / span 2 / span 2; }
.g2-4 { grid-area: 1 / 5 / span 3 / span 2; }
.g2-5 { grid-area: 4 / 5 / span 1 / span 1; }
.g2-6 { grid-area: 5 / 4 / span 2 / span 2; }
.g2-7 { grid-area: 4 / 6 / span 1 / span 1; }
.g2-8 { grid-area: 5 / 6 / span 2 / span 2; }
.g2-9 { grid-area: 1 / 7 / span 1 / span 2; }
.g2-10 { grid-area: 2 / 7 / span 1 / span 2; }
.g2-11 { grid-area: 3 / 7 / span 2 / span 2; }
.g2-12 { grid-area: 5 / 8 / span 2 / span 1; }

/* 拼图网格定位 - 组3 */
.g3-1 { grid-area: 1 / 1 / span 1 / span 2; }
.g3-2 { grid-area: 2 / 1 / span 2 / span 2; }
.g3-3 { grid-area: 4 / 1 / span 3 / span 2; }
.g3-4 { grid-area: 1 / 3 / span 2 / span 3; }
.g3-5 { grid-area: 3 / 3 / span 2 / span 3; }
.g3-6 { grid-area: 5 / 3 / span 2 / span 2; }
.g3-7 { grid-area: 1 / 6 / span 3 / span 2; }
.g3-8 { grid-area: 4 / 6 / span 1 / span 1; }
.g3-9 { grid-area: 5 / 5 / span 2 / span 2; }
.g3-10 { grid-area: 1 / 8 / span 2 / span 1; }
.g3-11 { grid-area: 3 / 8 / span 1 / span 1; }
.g3-12 { grid-area: 4 / 7 / span 3 / span 2; }

/* ============================================================
   6. 图片弹窗 (拼图点击放大)
   ============================================================ */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(240, 244, 248, 0.95);
    backdrop-filter: blur(10px);
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s;
    align-items: center;
    justify-content: center;
}

.image-modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    background: var(--bg-color);
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 20px 20px 60px var(--shadow-dark),
    -20px -20px 60px var(--shadow-light);
    border: 4px solid rgba(255, 255, 255, 0.6);
    transform: scale(0.9);
    transition: transform 0.3s;
    padding: 20px;
}

.image-modal.active .modal-content {
    transform: scale(1);
}

.modal-image {
    display: block;
    max-width: 100%;
    max-height: 70vh;
    margin: 0 auto;
    border-radius: 20px;
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
}

.modal-image.loading {
    width: 200px;
    height: 200px;
    background: linear-gradient(90deg, var(--bg-color), #e4edf5, var(--bg-color));
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 20px;
    margin: 100px auto;
    box-shadow: inset 6px 6px 12px var(--shadow-dark),
    inset -6px -6px 12px var(--shadow-light);
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.close-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--bg-color);
    color: var(--accent-color);
    font-size: 24px;
    font-weight: bold;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    z-index: 10;
}

.close-btn:hover {
    box-shadow: 8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
    transform: rotate(90deg) scale(1.1);
    color: var(--accent-color);
}

.close-btn:active {
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
    transform: rotate(90deg) scale(0.95);
}

.image-info {
    margin-top: 20px;
    padding: 15px 30px;
    background: var(--bg-color);
    border-radius: 15px;
    text-align: center;
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
}

.image-title {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 1.1rem;
}

/* ============================================================
   7. 介绍横幅 & 视频
   ============================================================ */
.desktop-banner, .mobile-banner {
    width: 100%;
    overflow: hidden;
    text-align: center;
    background: var(--bg-color);
    padding: 40px 0;
}

.desktop-banner {
    max-height: none;
}

.desktop-banner img,
.mobile-banner img {
    margin: 0 auto;
    max-width: 90%;
    width: auto;
    height: auto;
    border-radius: 30px;
    box-shadow: 15px 15px 40px var(--shadow-dark),
    -15px -15px 40px var(--shadow-light);
    border: 4px solid rgba(255, 255, 255, 0.6);
}

.mobile-banner {
    display: none;
}

.shouyevideo {
    width: 100%;
    height: auto;
    max-width: 100%;
    display: block;
    border-radius: 24px;
    box-shadow: 8px 8px 20px var(--shadow-dark),
    -8px -8px 20px var(--shadow-light);
    margin: 1.5rem 0;
}

/* ============================================================
   8. 报纸列表区块
   ============================================================ */
#paper-list {
    padding: 80px 0;
    background: var(--bg-color);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
    padding: 0 20px;
}

.section-header h2 {
    font-size: 2.2rem;
    color: var(--text-primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-weight: 700;
}

.section-header h2 i {
    color: var(--accent-color);
    font-size: 1.8rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.paper-slider-wrapper {
    border-radius: 25px;
    padding: 20px 5px;
    margin: 0 auto;
    max-width: 1200px;
    transition: all 0.3s ease;
}

.paper-slider-wrapper:hover {
    box-shadow: 15px 15px 30px var(--shadow-dark),
    -15px -15px 30px var(--shadow-light);
}

.paper-slider-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.paper-current-slide {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    min-height: 70vh;
    background: var(--bg-color);
    box-shadow: inset 6px 6px 12px var(--shadow-dark),
    inset -6px -6px 12px var(--shadow-light);
    border: 3px solid rgba(255, 255, 255, 0.6);
}

.paper-image-container {
    width: 100%;
    height: 100%;
    position: relative;
    min-height: 70vh;
}

.paper-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 20px;
    background-color: var(--bg-color);
    cursor: zoom-in;
    z-index: 1;
    will-change: opacity, transform;
}

.paper-image.active {
    opacity: 1;
    z-index: 2;
}

.paper-zoom-icon {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--bg-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
    z-index: 10;
}

.paper-zoom-icon:hover {
    transform: scale(1.1);
    color: var(--accent-color);
    box-shadow: 8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
}

.paper-zoom-icon:active {
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
}

.paper-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.paper-nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    min-width: 120px;
    justify-content: center;
}

.paper-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light) !important;
}

.paper-indicators {
    display: flex;
    gap: 15px;
    align-items: center;
}

.paper-indicator {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg-color);
    cursor: pointer;
    box-shadow: 3px 3px 6px var(--shadow-dark),
    -3px -3px 6px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.paper-indicator.active {
    background: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(222, 11, 11, 0.2),
    3px 3px 6px var(--shadow-dark),
    -3px -3px 6px var(--shadow-light);
}

.paper-indicator:hover:not(.active) {
    transform: scale(1.2);
    box-shadow: 4px 4px 8px var(--shadow-dark),
    -4px -4px 8px var(--shadow-light);
}

.paper-info {
    padding: 25px;
    border-radius: 20px;
}

.paper-info-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 15px;
}

.paper-title {
    font-size: 1.4rem;
    color: var(--text-primary);
    font-weight: 700;
}

.paper-date {
    color: var(--text-secondary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.paper-description {
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 1.05rem;
}

.paper-more-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--accent-bright);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 51, 51, 0.4);
    transition: all 0.3s ease;
    text-decoration: none;
    margin-left: 20px;
    font-family: var(--font-base);
}

.paper-more-btn:hover {
    background: #ff5555;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 51, 51, 0.5);
}

.paper-more-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(255, 51, 51, 0.3);
}

/* ============================================================
   9. 报纸模态框 (放大查看)
   ============================================================ */
.paper-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(240, 244, 248, 0.98);
    backdrop-filter: blur(10px);
    z-index: 3000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.paper-modal.active {
    display: flex;
    opacity: 1;
}

.paper-modal-content {
    position: relative;
    width: 95%;
    height: 95%;
    background: var(--bg-color);
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 20px 20px 60px var(--shadow-dark),
    -20px -20px 60px var(--shadow-light);
    border: 4px solid rgba(255, 255, 255, 0.7);
    padding: 30px;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.paper-modal.active .paper-modal-content {
    transform: scale(1);
}

.paper-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(163, 177, 198, 0.2);
}

.paper-modal-title {
    font-size: 1.6rem;
    color: var(--text-primary);
    font-weight: 700;
}

.paper-modal-body {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    background: var(--bg-color);
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
}

.paper-modal-image-container {
    width: 100%;
    height: 100%;
    overflow: auto;
    position: relative;
    padding: 20px;
}

.paper-modal-image {
    display: block;
    position: absolute;
    cursor: grab;
    transition: transform 0.1s ease;
    max-width: none;
    max-height: none;
}

.paper-modal-image.dragging {
    cursor: grabbing;
}

.paper-modal-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

.paper-modal-zoom-btn {
    width: 45px;
    height: 45px;
    background: var(--bg-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 4px 4px 8px var(--shadow-dark),
    -4px -4px 8px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.paper-modal-zoom-btn:hover {
    transform: scale(1.1);
    color: var(--accent-color);
}

.paper-modal-close {
    width: 45px;
    height: 45px;
    background: var(--bg-color);
    color: var(--accent-color);
    font-size: 28px;
    font-weight: bold;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.paper-modal-close:hover {
    box-shadow: 8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
    transform: rotate(90deg) scale(1.1);
}

/* ============================================================
   10. 书籍列表区块
   ============================================================ */
#book-list {
    padding: 100px 0;
    background: var(--bg-color);
    position: relative;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.book-card {
    position: relative;
    background: var(--bg-color);
    border-radius: 25px;
    padding: 25px;
    box-shadow: 12px 12px 30px var(--shadow-dark),
    -12px -12px 30px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.book-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.4) 0%, transparent 100%);
    border-radius: 23px 23px 0 0;
    pointer-events: none;
    z-index: 1;
}

.book-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 18px 18px 40px var(--shadow-dark),
    -18px -18px 40px var(--shadow-light);
    border-color: rgba(222, 11, 11, 0.15);
}

.book-image-wrapper {
    position: relative;
    width: 100%;
    height: 340px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 8px 8px 20px var(--shadow-dark),
    -8px -8px 20px var(--shadow-light);
    margin-bottom: 20px;
    z-index: 2;
}

.book-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, transparent 50%, rgba(0, 0, 0, 0.05) 100%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.book-card:hover .book-image-wrapper::after {
    opacity: 1;
}

.book-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease, filter 0.3s ease;
}

.book-card:hover .book-image {
    transform: scale(1.08);
    filter: brightness(1.05);
}

.book-tag {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-color);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(222, 11, 11, 0.3);
    z-index: 3;
    transform: translateY(-30px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.book-card:hover .book-tag {
    transform: translateY(0);
    opacity: 1;
}

.book-content {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.book-title {
    font-family: var(--font-title);
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.4;
    position: relative;
    padding-bottom: 12px;
    font-weight: 400;
}

.book-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.book-card:hover .book-title::after {
    width: 20%;
    height: 2px;
    background: var(--accent-bright);
}

.book-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    position: relative;
}

.book-action {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid rgba(163, 177, 198, 0.2);
}

.book-detail-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    background: var(--bg-color);
    border: none;
    border-radius: 15px;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 5px 5px 10px var(--shadow-dark),
    -5px -5px 10px var(--shadow-light);
    transition: all 0.3s ease;
    font-family: var(--font-base);
    pointer-events: none;
}

.book-card:hover .book-detail-btn {
    color: var(--accent-color);
    box-shadow: 8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
    transform: translateY(-3px);
}

/* ============================================================
   11. 书籍模态框
   ============================================================ */
.book-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(240, 244, 248, 0.95);
    backdrop-filter: blur(12px);
    z-index: 3000;
    opacity: 0;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.book-modal.active {
    display: flex;
    opacity: 1;
}

.book-modal-content {
    position: relative;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    background: var(--bg-color);
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 25px 25px 70px var(--shadow-dark),
    -25px -25px 70px var(--shadow-light);
    border: 4px solid rgba(255, 255, 255, 0.7);
    display: flex;
    flex-direction: column;
    transform: scale(0.8);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.book-modal.active .book-modal-content {
    transform: scale(1);
}

.book-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--bg-color);
    color: var(--accent-color);
    font-size: 24px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.book-modal-close:hover {
    transform: rotate(90deg) scale(1.1);
    box-shadow: 8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
}

.book-modal-body {
    display: flex;
    padding: 40px;
    gap: 40px;
    overflow-y: auto;
    max-height: calc(90vh - 100px);
}

.book-modal-image-wrapper {
    flex: 0 0 300px;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 10px 10px 30px var(--shadow-dark),
    -10px -10px 30px var(--shadow-light);
    border: 3px solid rgba(255, 255, 255, 0.6);
}

.book-modal-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-modal-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.book-modal-title {
    font-family: var(--font-title);
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.3;
    font-weight: 400;
}

.book-modal-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.9;
    flex: 1;
    padding: 25px;
    background: var(--bg-color);
    border-radius: 20px;
    box-shadow: inset 5px 5px 10px var(--shadow-dark),
    inset -5px -5px 10px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.4);
    margin-bottom: 20px;
}

.book-modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 2px solid rgba(163, 177, 198, 0.2);
}

.book-modal-price {
    font-size: 1.8rem;
    color: var(--accent-color);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.book-modal-price::before {
    content: '售价';
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.book-modal-buy {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 35px;
    background: #ffc107;
    color: #333;
    border: none;
    border-radius: 15px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(255, 193, 7, 0.4);
    transition: all 0.3s ease;
    text-decoration: none;
    font-family: var(--font-base);
}

.book-modal-buy:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(255, 193, 7, 0.5);
    background: #ffd54f;
}

.book-modal-buy:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px rgba(255, 193, 7, 0.3);
}

/* ============================================================
   12. 品牌案例区块
   ============================================================ */
#brand-case {
    padding: 100px 0;
    background: var(--bg-color);
    position: relative;
}

.brand-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.brand-card {
    position: relative;
    background: var(--bg-color);
    border-radius: 25px;
    overflow: hidden;
    box-shadow: 12px 12px 30px var(--shadow-dark),
    -12px -12px 30px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
}

.brand-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-bright));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 3;
}

.brand-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 18px 18px 40px var(--shadow-dark),
    -18px -18px 40px var(--shadow-light);
    border-color: rgba(222, 11, 11, 0.15);
}

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

.brand-image-wrapper {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: var(--bg-color);
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
}

.brand-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease, filter 0.3s ease;
}

.brand-card:hover .brand-image {
    transform: scale(1.08);
    filter: brightness(1.05);
}

.brand-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-color);
}

.brand-title {
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.4;
    position: relative;
    padding-bottom: 15px;
    font-weight: 400;
}

.brand-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.brand-card:hover .brand-title::after {
    width: 100%;
}

.brand-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.9;
    flex: 1;
    text-align: justify;
}

/* ============================================================
   13. 栏目页 - 热门文章列表
   ============================================================ */
#archive {
    padding: 60px 0 80px;
}

.page-header {
    text-align: center;
    margin-bottom: 50px;
}

.page-header h1 {
    font-family: var(--font-title);
    font-size: 2.5rem;
    display: inline-block;
    padding: 10px 35px;
    background: var(--bg-color);
    border-radius: 60px;
    box-shadow: 6px 6px 14px var(--shadow-dark),
    -6px -6px 14px var(--shadow-light);
}

.page-header h1 i {
    color: var(--accent-color);
    margin-right: 12px;
}

.articles-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 60px;
}

.archive-card {
    display: flex;
    gap: 28px;
    background: var(--bg-color);
    border-radius: 28px;
    padding: 24px;
    box-shadow: 12px 12px 28px var(--shadow-dark),
    -12px -12px 28px var(--shadow-light);
    border: 1px solid rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
}

.archive-card:hover {
    transform: translateY(-5px);
    box-shadow: 18px 18px 36px var(--shadow-dark),
    -18px -18px 36px var(--shadow-light);
}

.card-image {
    flex-shrink: 0;
    width: 240px;
    height: 160px;
    border-radius: 20px;
    overflow: hidden;
    background: #e2e8f0;
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s;
}

.archive-card:hover .card-image img {
    transform: scale(1.03);
}

.card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-category {
    font-size: 0.75rem;
    color: var(--accent-color);
    background: rgba(222, 11, 11, 0.08);
    display: inline-block;
    padding: 4px 12px;
    border-radius: 30px;
    width: fit-content;
    margin-bottom: 12px;
}

.card-category i {
    margin-right: 4px;
}

.card-title {
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 12px;
}

.card-title a:hover {
    color: var(--accent-color);
}

.card-meta {
    display: flex;
    gap: 24px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px dashed rgba(163, 177, 198, 0.3);
}

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

.card-summary {
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 0.95rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============================================================
   14. 分页组件
   ============================================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    border: none;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 44px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    box-shadow: 4px 4px 8px var(--shadow-dark),
    -4px -4px 8px var(--shadow-light);
    transition: 0.2s;
    cursor: pointer;
}

.pagination a i {
    font-size: 0.85rem;
}

.pagination a:hover:not(.disabled) {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.pagination a.active {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 12px rgba(222, 11, 11, 0.3);
}

.pagination a.disabled,
.pagination span.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.page-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0 10px;
}

/* ============================================================
   15. 文章详情页
   ============================================================ */
#article {
    padding: 60px 0 80px;
}

.article-card {
    max-width: 960px;
    margin: 0 auto;
    background: var(--bg-color);
    border-radius: 32px;
    box-shadow: 20px 20px 45px var(--shadow-dark),
    -20px -20px 45px var(--shadow-light);
    border: 1px solid rgba(255, 255, 255, 0.6);
    overflow: hidden;
    padding: 48px 56px;
}

.article-kicker {
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 1.2rem;
    display: inline-block;
    background: rgba(222, 11, 11, 0.08);
    padding: 4px 16px;
    border-radius: 40px;
}

.article-title {
    font-family: var(--font-title);
    font-size: 3rem;
    font-weight: 500;
    line-height: 1.25;
    margin-bottom: 0.75rem;
    color: #1f2e3a;
}

.article-subtitle {
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--text-secondary);
    border-left: 4px solid var(--accent-color);
    padding-left: 20px;
    margin: 20px 0 28px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 28px;
    padding: 20px 0 24px;
    margin-bottom: 32px;
    border-bottom: 2px solid rgba(163, 177, 198, 0.25);
    border-top: 2px solid rgba(163, 177, 198, 0.15);
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.meta-item i {
    color: var(--accent-color);
    width: 24px;
}

.article-content {
    font-size: 1.08rem;
    color: #2c3e44;
    line-height: 1.85;
}

.article-content video {
    width: 100%;
    height: auto;
    max-width: 100%;
    display: block;
    border-radius: 24px;
    box-shadow: 8px 8px 20px var(--shadow-dark),
    -8px -8px 20px var(--shadow-light);
    margin: 1.5rem 0;
}

.article-content p {
    margin-bottom: 1.6rem;
}

.article-content h3 {
    font-size: 1.6rem;
    margin: 2rem 0 1rem;
    font-weight: 600;
}

.article-content blockquote {
    background: rgba(222, 11, 11, 0.03);
    border-left: 5px solid var(--accent-color);
    padding: 1.2rem 2rem;
    margin: 2rem 0;
    border-radius: 20px;
    box-shadow: inset 2px 2px 6px var(--shadow-dark),
    inset -2px -2px 6px var(--shadow-light);
}

.article-content img {
    max-width: 100%;
    border-radius: 28px;
    margin: 2rem 0;
    box-shadow: 12px 12px 28px var(--shadow-dark),
    -8px -8px 20px var(--shadow-light);
}

/* ============================================================
   16. 页脚
   ============================================================ */
footer {
    background: var(--bg-color);
    color: var(--text-secondary);
    padding: 60px 0 30px;
    margin-top: 60px;
    box-shadow: 0 -10px 40px rgba(163, 177, 198, 0.15);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 40px;
    padding: 40px;
    border-radius: 25px;
    background: var(--bg-color);
    box-shadow: 10px 10px 20px var(--shadow-dark),
    -10px -10px 20px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.footer-logo-row {
    margin-bottom: 30px;
}

.footer-logo {
    padding: 20px 10px;
    border-radius: 20px;
    background: var(--bg-color);
    box-shadow: inset 6px 6px 12px var(--shadow-dark),
    inset -6px -6px 12px var(--shadow-light);
    display: inline-block;
}

.footer-logo img {
    height: 65px;
    display: block;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
    opacity: 0.9;
}

.footer-bottom-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    width: 100%;
    gap: 60px;
}

.footer-contact {
    flex: 1;
    min-width: 300px;
}

.footer-contact h4,
.footer-qr-title {
    color: var(--accent-color);
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(222, 11, 11, 0.2);
    display: flex;
    align-items: center;
}

.footer-contact h4 i {
    margin-right: 8px;
}

.contact-list {
    list-style: none;
    text-align: left;
}

.contact-list li {
    padding: 10px 0;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-primary);
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.contact-list li i {
    color: var(--accent-color);
    width: 20px;
    margin-top: 3px;
}

.contact-list .label {
    color: var(--text-secondary);
    font-weight: 500;
}

.footer-qr-section {
    flex: 0 0 auto;
    min-width: 280px;
    max-width: 320px;
}

.footer-qr-title {
    justify-content: flex-start;
}

.footer-qr-title i {
    margin-right: 8px;
}

.footer-qr-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.footer-qr-item {
    background: var(--bg-color);
    border-radius: 16px;
    padding: 12px 10px 10px;
    text-align: center;
    box-shadow: 4px 4px 8px var(--shadow-dark),
    -4px -4px 8px var(--shadow-light);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.footer-qr-item:hover {
    transform: translateY(-3px);
    box-shadow: 6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
}

.footer-qr-item img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 2px 2px 6px var(--shadow-dark),
    -2px -2px 6px var(--shadow-light);
    border: 1px solid rgba(255, 255, 255, 0.6);
    margin-bottom: 6px;
    transition: all 0.3s ease;
}

.footer-qr-item:hover img {
    transform: scale(1.03);
}

.footer-qr-item span {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
    line-height: 1.4;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.copyright-content {
    background: var(--bg-color);
    padding: 25px;
    border-radius: 20px;
    box-shadow: inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.copyright-links {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.copyright-links a {
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 8px;
    background: var(--bg-color);
    box-shadow: 3px 3px 6px var(--shadow-dark),
    -3px -3px 6px var(--shadow-light);
    transition: all 0.3s ease;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.copyright-links a:hover {
    color: var(--accent-color);
    box-shadow: 4px 4px 8px var(--shadow-dark),
    -4px -4px 8px var(--shadow-light);
}

.copyright-links img {
    height: 16px;
    width: auto;
    vertical-align: middle;
}

/* ============================================================
   17. Toast 提示弹窗
   ============================================================ */
.toast-notification {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-color);
    color: var(--accent-color);
    padding: 16px 40px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 10px 10px 30px var(--shadow-dark),
    -10px -10px 30px var(--shadow-light);
    border: 3px solid rgba(255, 255, 255, 0.6);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: none;
    white-space: nowrap;
}

.toast-notification.show {
    top: 120px;
    opacity: 1;
}

.toast-notification i {
    font-size: 22px;
    color: var(--accent-color);
}

/* ============================================================
   18. 入场动画 (fade-up)
   ============================================================ */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   19. 响应式设计
   ============================================================ */

/* 平板 & 折叠屏 (≤900px) */
@media (max-width: 900px) {
    .header-container {
        padding: 12px 20px;
        margin: 0 10px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: calc(100% + 20px);
        left: 20px;
        right: 20px;
        width: auto;
        background: var(--bg-color);
        flex-direction: column;
        padding: 25px;
        border-radius: 25px;
        box-shadow: 15px 15px 30px var(--shadow-dark),
        -15px -15px 30px var(--shadow-light);
        border: 3px solid rgba(255, 255, 255, 0.5);
        gap: 15px;
        z-index: 1001;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* 拼图区域响应式 */
    .puzzle-grid {
        grid-template-columns: repeat(6, 90px);
        grid-template-rows: repeat(5, 90px);
        width: calc(540px + 40px + 4px);
        gap: 6px;
        padding: 6px;
    }

    .floating-toolbar {
        display: flex;
    }

    .movie-mv {
        padding: 30px 0;
        border-radius: 0 0 25px 25px;
        height: 500px;
    }

    .banner_slider {
        top: 30px;
        height: calc(100% - 60px);
    }

    .desktop-banner {
        display: none !important;
    }

    .mobile-banner {
        display: block !important;
        padding: 30px 0;
    }

    /* 页脚响应式 */
    .footer-content {
        flex-direction: column;
        text-align: center;
        padding: 25px;
    }

    .footer-bottom-row {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }

    .footer-contact,
    .footer-qr-section {
        width: 100%;
        max-width: 100%;
        min-width: auto;
    }

    .footer-contact h4,
    .footer-qr-title {
        text-align: center;
        justify-content: center;
    }

    .contact-list {
        max-width: 400px;
        margin: 0 auto;
    }

    .contact-list li {
        text-align: left;
        font-size: 13px;
    }

    .footer-qr-grid {
        max-width: 420px;
        margin: 0 auto;
        gap: 40px;
    }

    /* 报纸响应式 */
    .paper-current-slide {
        min-height: 60vh;
    }

    .paper-image-container {
        min-height: 60vh;
    }

    .paper-controls {
        gap: 15px;
        justify-content: center;
    }

    .paper-nav-btn {
        order: 2;
    }

    .paper-indicators {
        order: 1;
        width: 100%;
        justify-content: center;
    }

    .paper-more-btn {
        order: 3;
        margin: 10px auto 0;
        width: 100%;
        justify-content: center;
    }

    /* 书籍响应式 */
    .section-header h2 {
        font-size: 2.2rem;
        padding: 15px 35px;
    }

    .book-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .book-modal-body {
        flex-direction: column;
        align-items: center;
        padding: 30px;
    }

    .book-modal-image-wrapper {
        flex: none;
        width: 250px;
        height: 350px;
    }

    .book-modal-title {
        font-size: 1.6rem;
        text-align: center;
    }

    .book-modal-footer {
        flex-direction: column;
        gap: 20px;
        align-items: stretch;
    }

    .book-modal-price {
        justify-content: center;
    }

    .book-modal-buy {
        width: 100%;
    }

    /* 品牌响应式 */
    .brand-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }

    /* 文章详情响应式 */
    .article-card {
        padding: 32px 28px;
    }

    .article-title {
        font-size: 2.4rem;
    }

    /* 工具栏响应式 */
    .toolbar-trigger {
        width: 45px;
        height: 100px;
    }

    .toolbar-trigger i {
        font-size: 20px;
    }

    .toolbar-trigger-text {
        font-size: 12px;
    }

    .toolbar-panel.active {
        right: 45px;
    }

    /* Toast 响应式 */
    .toast-notification {
        font-size: 14px;
        padding: 14px 28px;
        width: 85%;
        justify-content: center;
    }

    .toast-notification.show {
        top: 100px;
    }
}

/* 小平板 & 手机 (≤768px) */
@media (max-width: 768px) {
    .puzzle-grid {
        grid-template-columns: repeat(4, 75px);
        grid-template-rows: repeat(6, 75px);
        width: calc(300px + 24px + 4px);
        gap: 5px;
        padding: 5px;
    }

    .puzzle-item {
        border-radius: 12px;
        border-width: 2px;
    }

    #paper-list,
    #book-list {
        padding: 60px 0;
    }

    .book-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .book-image-wrapper {
        height: 300px;
    }

    .brand-image-wrapper {
        height: 220px;
    }

    .brand-title {
        font-size: 1.3rem;
    }

    .brand-desc {
        font-size: 0.9rem;
    }

    /* 文章详情响应式 */
    .article-card {
        padding: 28px 20px;
    }

    .article-title {
        font-size: 1.9rem;
    }

    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .footer-content {
        padding: 30px 20px;
    }
}

/* 大屏手机 (≤480px) */
@media (max-width: 480px) {
    .logo img {
        height: 40px;
    }

    .puzzle-grid {
        grid-template-columns: repeat(4, 65px);
        grid-template-rows: repeat(6, 65px);
        width: calc(260px + 15px + 4px);
        gap: 4px;
        padding: 4px;
    }

    .close-btn {
        width: 40px;
        height: 40px;
        top: 20px;
        right: 20px;
    }

    .modal-content {
        padding: 15px;
        border-radius: 20px;
    }

    .footer-logo img {
        height: 42px;
    }

    .footer-contact h4 {
        font-size: 16px;
    }

    .contact-list li {
        font-size: 12px;
        padding: 5px 0;
    }

    .footer-qr-grid {
        max-width: 420px;
        gap: 15px;
    }

    .footer-qr-item span {
        font-size: 10px;
    }

    .section-header h2 {
        font-size: 1.8rem;
        padding: 12px 25px;
    }

    .section-subtitle {
        font-size: 0.95rem;
    }

    .paper-current-slide {
        min-height: 50vh;
    }

    .paper-image-container {
        min-height: 50vh;
    }

    .book-modal-image-wrapper {
        width: 200px;
        height: 280px;
    }

    .book-modal-title {
        font-size: 1.3rem;
    }

    .book-modal-description {
        font-size: 0.9rem;
        padding: 15px;
    }

    .book-modal-price {
        font-size: 1.5rem;
    }

    .brand-image-wrapper {
        height: 180px;
    }

    .brand-content {
        padding: 20px;
    }

    .brand-title {
        font-size: 1.2rem;
        padding-bottom: 12px;
    }

    /* 文章详情响应式 */
    .article-title {
        font-size: 1.6rem;
    }

    .article-subtitle {
        font-size: 1.05rem;
        padding-left: 14px;
        margin: 14px 0 20px;
    }

    .article-content {
        font-size: 0.98rem;
    }

    .toolbar-trigger {
        width: 40px;
        height: 90px;
    }

    .toolbar-panel.active {
        right: 40px;
        width: 240px;
    }

    .qr-item img {
        width: 80px;
        height: 80px;
    }

    .page-header h1 {
        font-size: 1.8rem;
        padding: 8px 24px;
    }

    .archive-card {
        flex-direction: column;
        gap: 18px;
        padding: 20px;
    }

    .card-image {
        width: 100%;
        height: 180px;
    }

    .card-title {
        font-size: 1.3rem;
    }

    .card-meta {
        flex-wrap: wrap;
        gap: 12px;
    }
}