/* ========================================
   5th Urban Regeneration Symposium
   宇宙深空色主题样式
   ======================================== */

/* 配色方案 */
:root {
    --primary-bg: #0a0e27;           /* 深紫蓝 - 导航/底部背景 */
    --secondary-bg: #16213e;          /* 深蓝 - 导航/底部背景 */
    --accent-color: #e94560;          /* 粉红 - 强调色 */
    --accent-blue: #4facfe;           /* 蓝色 - 次强调色 */
    --text-primary: #1a1a2e;          /* 深色 - 主体主文字 */
    --text-secondary: #555555;        /* 灰色 - 主体次文字 */
    --card-bg: #f8f9fa;               /* 浅灰 - 卡片背景 */
    --card-border: #e0e0e0;           /* 浅灰 - 卡片边框 */
    --shadow-color: rgba(233, 69, 96, 0.2);
    --nav-text: #ffffff;              /* 白色 - 导航/底部文字 */
    --nav-text-secondary: #b8c5d6;    /* 浅灰蓝 - 导航/底部次文字 */
}

/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #ffffff;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 头部样式 */
#header-top-row {
    background: #ffffff;
    padding: 15px 0;
    border-bottom: 1px solid var(--card-border);
}

#logo-img img {
    max-height: 80px;
    transition: transform 0.3s ease;
}

#logo-img img:hover {
    transform: scale(1.05);
}

.header-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 20px;
    flex-wrap: nowrap;
}

.event-meta {
    color: var(--text-secondary);
    font-size: 0.95rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.event-meta .location,
.event-meta .date {
    color: var(--accent-blue);
    font-weight: 600;
}

.event-meta .dot {
    color: var(--accent-color);
    margin: 0 8px;
}

.btn-register {
    background: linear-gradient(135deg, var(--accent-color) 0%, #ff6b6b 100%);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-color);
    color: white;
}

/* 导航样式 */
.row-nav {
    background: rgba(22, 33, 62, 0.95);
    backdrop-filter: blur(10px);
    margin: 0 !important;
    border-bottom: none;
}

.row-nav > [class*="col-"] {
    padding: 0;
}

#nav {
    position: relative;
}

.nav-toggle {
    background: transparent;
    border: none;
    color: var(--nav-text);
    font-size: 24px;
    cursor: pointer;
    display: none;
}

.nav-primary {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px 0;
    margin: 0;
    gap: 5px;
}

.nav-primary li {
    position: relative;
}

.nav-primary li a {
    color: var(--nav-text-secondary);
    text-decoration: none;
    padding: 10px 20px;
    display: block;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 20px;
}

.nav-primary li a:hover,
.nav-primary li.active a {
    color: var(--nav-text);
    background: rgba(255, 255, 255, 0.1);
}

.nav-primary li.active a::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

/* 导航与banner无缝衔接 */
.nav-banner-wrap {
    width: 100%;
    margin: 0;
    padding: 0;
    line-height: 0;
    font-size: 0;
}

.nav-banner-wrap .row-nav {
    margin: 0 !important;
    line-height: normal;
    font-size: 1rem;
}

.nav-banner-wrap #home-slide {
    margin: 0;
    line-height: normal;
    font-size: 1rem;
}

/* 幻灯片/横幅 */
#home-slide {
    height: 550px;
    position: relative;
    overflow: hidden;
    margin: 0;
}

#home-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(10, 14, 39, 0.05), rgba(10, 14, 39, 0.15));
    z-index: 1;
}

.slide-date-badge {
    position: absolute;
    bottom: 50px;
    right: 0;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(18px) saturate(1.1);
    -webkit-backdrop-filter: blur(18px) saturate(1.1);
    color: #666;
    padding: 8px 60px 8px 80px;
    border-radius: 42px 0 0 42px;
    font-size: 1.1rem;
    font-weight: 500;
    z-index: 2;
    box-shadow: -10px 15px 40px rgba(0, 0, 0, 0.12);
    border: none;
    line-height: 1.4;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    min-height: 70px;
}

.slide-date-badge:hover {
    background: rgba(255, 255, 255, 0.82);
    box-shadow: -12px 18px 45px rgba(0, 0, 0, 0.15);
}

.slide-date-badge .city {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 4px;
    margin-bottom: 8px;
    color: #777;
    text-transform: uppercase;
}

.slide-date-badge .date-line {
    display: block;
    font-size: 1.2rem;
    font-weight: 500;
    color: #666;
    margin-bottom: 5px;
    letter-spacing: 0.5px;
}

.slide-date-badge .year {
    display: block;
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1;
    color: #555;
    letter-spacing: -1px;
    margin-top: 5px;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

/* 主标题区 */
.symp-hero {
    padding: 60px 0 40px;
    text-align: center;
    position: relative;
}

.symp-hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.symp-hero__kicker {
    font-size: 1.5rem;
    color: var(--accent-blue);
    font-weight: 600;
}

/* 波浪卡片 */
.wave-card {
    position: relative;
    overflow: hidden;
    margin: 40px 0;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid var(--card-border);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.wave-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    z-index: 0;
}

.wave-bg svg {
    width: 100%;
    height: 100%;
}

.wave-lines path {
    stroke: var(--accent-blue);
    stroke-width: 2;
    fill: none;
    opacity: 0.3;
}

.wave-card .content {
    position: relative;
    z-index: 1;
    padding: 40px;
}

/* 倒计时 */
.countdown-box {
    text-align: center;
}

.countdown-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 5px;
}

.countdown-label {
    font-size: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

/* 讲师区域 */
#lecturers-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 30px;
    margin-top: 30px;
}

.home-lecture-item {
    padding: 20px;
    margin-bottom: 20px;
    background: #ffffff;
    border-radius: 15px;
    border: 1px solid var(--card-border);
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.home-lecture-item:hover {
    background: #ffffff;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.lecturer-image img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-color);
    box-shadow: 0 0 20px rgba(233, 69, 96, 0.3);
}

.lecturer-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.lecturer-name small {
    color: var(--accent-blue);
    font-size: 0.9rem;
}

.lecturer-intro {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 10px;
}

.lecturer-more a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.lecturer-more a:hover {
    color: var(--accent-blue);
}

/* 为什么参加 */
#whyattend-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
}

#home-why .row {
    padding: 15px 0;
    border-bottom: 1px solid var(--card-border);
    align-items: center;
}

#home-why .row:last-child {
    border-bottom: none;
}

#home-why img {
    opacity: 1;
}

#home-why p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0;
}

/* 画廊 */
#gallery-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
}

.gallery img {
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.gallery img:hover {
    transform: scale(1.02);
}

iframe {
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* 地点 */
#location-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
}

.location-content h4 {
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 15px;
    font-size: 1.8rem;
}

.location-content p {
    color: var(--text-secondary);
    margin-bottom: 15px;
}

/* 页脚 */
.site-footer {
    background: linear-gradient(to top, rgba(10, 14, 39, 0.98), rgba(22, 33, 62, 0.98));
    border-top: 1px solid var(--card-border);
    padding: 60px 0 0;
    backdrop-filter: blur(10px);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
}

.footer-col h4 {
    color: #ffffff;
    font-weight: 700;
    margin-bottom: 20px;
    font-size: 1.4rem;
    letter-spacing: 0.5px;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 14px;
}

.footer-links a {
    color: #e8edf2;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.6;
}

.footer-links a:hover {
    color: #4facfe;
    transform: translateX(5px);
}

.footer-links strong {
    color: #ffffff;
    font-weight: 700;
    font-size: 1rem;
    display: inline-block;
    padding: 4px 10px;
    background: rgba(79, 172, 254, 0.2);
    border-radius: 4px;
}

.footer-bottom {
    margin-top: 0;
    padding: 22px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    text-align: center;
    background: rgba(10, 14, 39, 0.98);
}

.footer-bottom span {
    color: #d4dbe4;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* 人物介绍 Portrait */
#intro-portre {
    margin: 50px 0 30px;
}

#intro-portre .portre-card {
    position: relative;
    background: linear-gradient(135deg, #0a0e27, #16213e);
    border-radius: 10px;
    padding: 40px 50px 40px 400px;
    overflow: visible;
}

#intro-portre .portre-photo-frame {
    position: absolute;
    bottom: 0;
    left: 50px;
    width: 300px;
    z-index: 10;
}

#intro-portre .portre-photo-frame img {
    width: 100%;
    height: auto;
    display: block;
}

#intro-portre .portre-text {
    color: #ffffff;
    text-align: left;
}

#intro-portre .portre-quote {
    font-style: italic;
    color: rgba(255, 255, 255, 0.92);
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: 12px;
}

#intro-portre .portre-author {
    color: #ffffff;
    font-weight: 700;
    font-size: 1rem;
    margin: 8px 0 0;
    text-align: left;
}

/* Pad 响应式 (769px - 1024px) */
@media (max-width: 1024px) {
    #intro-portre {
        margin: 45px 0 30px;
    }

    #intro-portre .portre-card {
        padding: 35px 40px 35px 340px;
    }

    #intro-portre .portre-photo-frame {
        width: 252px;
        bottom: 0;
        left: 45px;
    }

    #intro-portre .portre-quote {
        font-size: 0.95rem;
    }
}

/* Mobile 响应式 (max-width: 768px) */
@media (max-width: 768px) {
    #intro-portre {
        margin: 150px 0 20px;
    }

    #intro-portre .portre-card {
        padding: 170px 22px 28px;
    }

    #intro-portre .portre-photo-frame {
        top: -110px;
        left: 50%;
        transform: translateX(-50%);
        width: 240px;
        bottom: auto;
    }

    #intro-portre .portre-text {
        text-align: left;
    }

    #intro-portre .portre-author {
        text-align: left;
    }

    #intro-portre .portre-quote {
        font-size: 0.9rem;
    }
}

/* Pad 响应式 */
@media (max-width: 1024px) {
    .symp-hero__title {
        font-size: 3rem;
    }

    .slide-date-badge {
        right: 0;
        bottom: 40px;
        padding: 6px 45px 6px 65px;
        border-radius: 32px 0 0 32px;
        min-height: 56px;
    }

    .slide-date-badge .city {
        font-size: 1.05rem;
        letter-spacing: 3px;
    }

    .slide-date-badge .date-line {
        font-size: 1.05rem;
    }

    .slide-date-badge .year {
        font-size: 3.6rem;
    }
}

/* Mobile 响应式 */
@media (max-width: 768px) {
    .symp-hero__title {
        font-size: 2.5rem;
    }

    #home-slide {
        height: 350px;
    }

    .slide-date-badge {
        right: 0;
        bottom: 25px;
        padding: 4px 22px 4px 40px;
        border-radius: 21px 0 0 21px;
        min-height: 39px;
    }

    .slide-date-badge .city {
        font-size: 0.9rem;
        letter-spacing: 2.5px;
        margin-bottom: 4px;
    }

    .slide-date-badge .date-line {
        font-size: 0.9rem;
    }

    .slide-date-badge .year {
        font-size: 2.5rem;
        margin-top: 2px;
    }

    .countdown-number {
        font-size: 2.5rem;
    }

    .nav-toggle {
        display: block;
    }

    .nav-primary {
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        display: none;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 滚动动画 - 初始状态（默认可见，滚动时添加动画） */
.home-lecture-item,
#whyattend-container,
#gallery-container,
#location-container {
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

/* 滚动动画 - 可见状态（通过JS添加） */
.home-lecture-item.visible,
#whyattend-container.visible,
#gallery-container.visible,
#location-container.visible {
    animation: fadeInUp 0.8s ease-out;
}

.fade-in-up {
    opacity: 1 !important;
    transform: translateY(0) !important;
    animation: fadeInUp 0.8s ease-out;
}

/* 柔和背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 80%, rgba(79, 172, 254, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(233, 69, 96, 0.04) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* ========================================
   Program Page 样式
   ======================================== */

/* Program Overview Cards */
.program-overview {
    margin-bottom: 40px;
}

.program-card {
    background: linear-gradient(135deg, #0a0e27, #16213e);
    border-radius: 12px;
    padding: 30px 25px;
    text-align: center;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.program-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.program-card .program-card-type {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.program-card .program-card-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
}

.program-card .program-card-date {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Venue Cards */
.venue-card {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px 30px;
    border-left: 4px solid var(--accent-blue);
}

.venue-card h5 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 8px;
}

.venue-card p {
    color: #666;
    margin: 0;
}

/* Timeline Cards */
.program-timeline {
    margin-bottom: 40px;
}

.timeline-card {
    background: linear-gradient(135deg, #0a0e27, #16213e);
    border-radius: 12px;
    padding: 25px 15px;
    text-align: center;
    height: 100%;
}

.timeline-card .timeline-month {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--accent-blue);
    font-weight: 600;
    letter-spacing: 1px;
}

.timeline-card .timeline-day {
    font-size: 2.5rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1;
    margin: 5px 0 10px;
}

.timeline-card .timeline-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Program Day Header */
.program-day-header {
    margin: 40px 0 20px;
    padding: 20px 30px;
    background: linear-gradient(135deg, #0a0e27, #16213e);
    border-radius: 10px;
}

.program-day-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 5px 0;
}

.program-day-header span {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Program Session */
.program-session {
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 25px 30px;
    margin-bottom: 20px;
    transition: box-shadow 0.3s ease;
}

.program-session:hover {
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
}

.session-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 8px;
}

.session-header .session-type {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-bg);
}

.session-header .session-speaker {
    font-size: 0.9rem;
    color: var(--accent-blue);
    font-weight: 500;
}

.session-venue {
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 8px;
}

.session-venue::before {
    content: "📍 ";
}

.session-topic {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 15px;
    font-style: italic;
}

/* Session Schedule */
.session-schedule {
    border-top: 1px solid #eee;
    padding-top: 15px;
}

.schedule-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

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

.schedule-item .schedule-time {
    flex-shrink: 0;
    width: 140px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-bg);
}

.schedule-item .schedule-title {
    font-size: 0.95rem;
    color: #333;
}

.schedule-item .schedule-speaker {
    display: block;
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-top: 3px;
}

/* Program Page 响应式 */
@media (max-width: 768px) {
    .program-card {
        padding: 20px 15px;
    }

    .program-card .program-card-title {
        font-size: 1.1rem;
    }

    .timeline-card .timeline-day {
        font-size: 2rem;
    }

    .program-day-header {
        padding: 15px 20px;
    }

    .program-day-header h3 {
        font-size: 1.2rem;
    }

    .program-session {
        padding: 18px 15px;
    }

    .session-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .schedule-item {
        flex-direction: column;
        gap: 5px;
    }

    .schedule-item .schedule-time {
        width: auto;
    }
}

/* ========================================
   Speakers Page 样式
   ======================================== */

.speaker-section {
    margin-bottom: 40px;
}

.speaker-card {
    display: flex;
    gap: 30px;
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 30px;
    transition: box-shadow 0.3s ease;
}

.speaker-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.speaker-photo {
    flex-shrink: 0;
    width: 200px;
}

.speaker-photo img {
    width: 100%;
    border-radius: 10px;
    display: block;
}

.speaker-info {
    flex: 1;
}

.speaker-info h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 10px;
}

.speaker-info h2 small {
    font-size: 0.9rem;
    font-weight: 500;
    color: #888;
}

.speaker-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.speaker-tags .tag {
    display: inline-block;
    padding: 3px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-blue);
    background: rgba(79, 172, 254, 0.1);
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.speaker-lecture {
    margin-bottom: 20px;
}

.speaker-lecture h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 8px;
}

.speaker-lecture p {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.7;
    margin-bottom: 10px;
}

.speaker-lecture ul,
.speaker-lecture ol {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.7;
    padding-left: 20px;
    margin-bottom: 10px;
}

.speaker-cv {
    border-top: 1px solid #eee;
    padding-top: 15px;
}

.speaker-cv p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 10px;
}

.speaker-cv ul {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.7;
    padding-left: 20px;
}

.speaker-cv ul li {
    margin-bottom: 5px;
}

/* Speakers Page 响应式 */
@media (max-width: 768px) {
    .speaker-card {
        flex-direction: column;
        gap: 20px;
        padding: 20px 15px;
    }

    .speaker-photo {
        width: 150px;
        margin: 0 auto;
    }

    .speaker-info h2 {
        font-size: 1.2rem;
        text-align: center;
    }

    .speaker-tags {
        justify-content: center;
    }

    .speaker-lecture h4 {
        font-size: 1rem;
    }
}

/* ========================================
   Location Page 样式
   ======================================== */

.location-section {
    margin-bottom: 40px;
}

.location-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-blue);
}

.location-section p {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.8;
    margin-bottom: 12px;
}

.venue-address {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-bg);
}

.venue-subtitle {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-blue);
    font-style: italic;
}

.venue-image {
    margin: 20px 0;
    border-radius: 12px;
    overflow: hidden;
}

.venue-image img {
    width: 100%;
    display: block;
    border-radius: 12px;
}

/* Hotel Cards */
.hotel-card {
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 25px;
    height: 100%;
    transition: box-shadow 0.3s ease;
}

.hotel-card:hover {
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
}

.hotel-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 8px;
}

.hotel-card .hotel-special {
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.hotel-card .hotel-email {
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.hotel-card .hotel-email a {
    color: var(--accent-blue);
    text-decoration: none;
}

.hotel-card .hotel-email a:hover {
    text-decoration: underline;
}

.hotel-card .hotel-address {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 15px;
}

.hotel-card .btn-sm {
    font-size: 0.85rem;
    padding: 6px 20px;
}

/* Location Page 响应式 */
@media (max-width: 768px) {
    .location-section h2 {
        font-size: 1.3rem;
    }

    .hotel-card {
        padding: 20px 15px;
    }
}

/* ========================================
   Sponsors Page 样式
   ======================================== */

.sponsor-section {
    margin-bottom: 50px;
}

.sponsor-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-blue);
    text-align: center;
}

.sponsor-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.sponsor-item {
    flex: 0 0 auto;
    width: 280px;
}

.sponsor-placeholder {
    background: linear-gradient(135deg, #0a0e27, #16213e);
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sponsor-placeholder:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Sponsors Page 响应式 */
@media (max-width: 768px) {
    .sponsor-section h2 {
        font-size: 1.3rem;
    }

    .sponsor-item {
        width: 100%;
        max-width: 320px;
    }
}

/* ========================================
   Registration Page 样式
   ======================================== */

.reg-info {
    background: #f9f9fb;
    border-radius: 12px;
    padding: 30px 35px;
    margin-bottom: 50px;
}

.reg-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 15px;
}

.reg-info h5 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-top: 18px;
    margin-bottom: 8px;
}

.reg-info p,
.reg-info li {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.7;
    margin-bottom: 8px;
}

.reg-info ul {
    padding-left: 20px;
}

.reg-info a {
    color: var(--accent-blue);
    text-decoration: none;
}

.reg-info a:hover {
    text-decoration: underline;
}

.reg-section-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-bg);
    text-align: center;
    margin-bottom: 30px;
    letter-spacing: 2px;
}

.reg-category {
    margin-bottom: 50px;
}

.reg-category > h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(135deg, #0a0e27, #16213e);
    padding: 14px 25px;
    border-radius: 8px;
    margin-bottom: 25px;
    display: inline-block;
}

.ticket-card {
    background: #ffffff;
    border: 1px solid #e6e6ee;
    border-radius: 14px;
    padding: 30px 35px;
    margin-bottom: 25px;
    position: relative;
    transition: box-shadow 0.3s ease;
}

.ticket-card:hover {
    box-shadow: 0 10px 40px rgba(10, 14, 39, 0.08);
}

.ticket-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 12px;
}

.ticket-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 10px;
    color: #fff;
}

.ticket-diamond .ticket-badge {
    background: linear-gradient(135deg, #b9f2ff, #4fc3f7);
    color: #01579b;
}

.ticket-gold .ticket-badge {
    background: linear-gradient(135deg, #fff3c4, #f9c851);
    color: #5d4037;
}

.ticket-silver .ticket-badge {
    background: linear-gradient(135deg, #f5f7fa, #b8c6db);
    color: #37474f;
}

.ticket-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: #666;
}

.ticket-meta i {
    color: var(--accent-blue);
    margin-right: 5px;
}

.ticket-includes-title {
    font-weight: 600;
    color: #333;
    margin-bottom: 6px;
}

.ticket-includes {
    padding-left: 20px;
    margin-bottom: 15px;
}

.ticket-includes li {
    font-size: 0.92rem;
    color: #555;
    line-height: 1.8;
}

.ticket-value {
    font-size: 0.92rem;
    color: #888;
    margin-bottom: 5px;
}

.ticket-select-title {
    font-size: 0.95rem;
    margin-bottom: 12px;
    margin-top: 12px;
}

.ticket-note {
    background: #fff8e1;
    border-left: 4px solid #f9c851;
    padding: 10px 15px;
    border-radius: 0 6px 6px 0;
    font-size: 0.88rem;
    color: #5d4037;
    margin-bottom: 15px;
}

.workshop-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
    max-height: 320px;
    overflow-y: auto;
    padding-right: 8px;
}

.workshop-options::-webkit-scrollbar {
    width: 6px;
}

.workshop-options::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.workshop-option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 15px;
    background: #f6f8fc;
    border: 1px solid #e0e6f0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.workshop-option:hover {
    background: #eef3fc;
    border-color: var(--accent-blue);
}

.workshop-option input {
    margin-top: 4px;
    cursor: pointer;
}

.workshop-time {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary-bg);
    margin-bottom: 3px;
}

.workshop-meta {
    font-size: 0.82rem;
    color: #777;
    margin-bottom: 2px;
}

.workshop-loc {
    font-size: 0.82rem;
    color: #555;
}

.workshop-loc i {
    color: var(--accent-blue);
    margin-right: 4px;
}

.ticket-price {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--accent-blue);
    margin: 18px 0;
}

.reg-footnote {
    text-align: center;
    font-size: 0.9rem;
    color: #777;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px dashed #ddd;
}

/* Registration Page 响应式 */
@media (max-width: 768px) {
    .reg-info {
        padding: 20px 15px;
    }

    .reg-category > h3 {
        font-size: 1.2rem;
        display: block;
        text-align: center;
    }

    .ticket-card {
        padding: 20px 15px;
    }

    .ticket-price {
        font-size: 1.7rem;
    }

    .ticket-meta {
        flex-direction: column;
        gap: 8px;
    }
}

/* ========================================
   Contact Page 样式
   ======================================== */

.contact-intro h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #555;
    line-height: 1.6;
}

.contact-card {
    max-width: 700px;
    margin: 0 auto;
    background: #ffffff;
    border: 1px solid #e6e6ee;
    border-radius: 16px;
    padding: 45px 50px;
    box-shadow: 0 5px 30px rgba(10, 14, 39, 0.06);
}

.contact-card h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-bottom: 8px;
}

.contact-subtitle {
    font-size: 1rem;
    color: #777;
    margin-bottom: 35px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, #0a0e27, #16213e);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #4fc3f7;
}

.contact-detail {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.contact-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-detail a {
    font-size: 1.05rem;
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
}

.contact-detail a:hover {
    text-decoration: underline;
}

.contact-detail strong {
    font-size: 1.05rem;
    color: var(--primary-bg);
}

.contact-address {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.6;
}

.whatsapp-icon {
    background: linear-gradient(135deg, #25d366, #128c7e) !important;
    color: #ffffff !important;
}

.whatsapp-icon i {
    font-size: 1.4rem;
}

.whatsapp-icon:hover {
    transform: scale(1.08);
    transition: transform 0.3s ease;
}

/* Instagram QR Code */
.contact-item-qr {
    align-items: flex-start;
}

.contact-item-qr .contact-icon {
    background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888) !important;
    color: #fff !important;
}

.contact-item-qr .contact-icon i {
    font-size: 1.4rem;
}

.qr-code-wrap {
    margin-top: 12px;
    padding: 10px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    display: inline-block;
}

.qr-code-img {
    width: 160px;
    height: 160px;
    object-fit: contain;
    display: block;
}

/* Contact Page 响应式 */
@media (max-width: 768px) {
    .contact-intro h3 {
        font-size: 1.15rem;
    }

    .contact-card {
        padding: 30px 20px;
    }

    .contact-icon {
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
    }

    .whatsapp-icon i {
        font-size: 1.2rem;
    }

    .contact-item-qr .contact-icon i {
        font-size: 1.2rem;
    }

    .qr-code-img {
        width: 130px;
        height: 130px;
    }

    .contact-detail a,
    .contact-detail strong {
        font-size: 0.95rem;
    }
}

/* ========================================
   Legal Pages 样式 (GTC / Privacy / etc.)
   ======================================== */

.legal-page {
    max-width: 900px;
}

.legal-page h1 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-bg);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--accent-blue);
}

.legal-page h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-top: 35px;
    margin-bottom: 12px;
}

.legal-page p {
    font-size: 0.95rem;
    color: #444;
    line-height: 1.85;
    margin-bottom: 14px;
    text-align: justify;
}

.legal-page strong {
    color: var(--primary-bg);
}

.legal-page a {
    color: var(--accent-blue);
    text-decoration: none;
}

.legal-page a:hover {
    text-decoration: underline;
}

.legal-label {
    font-weight: 700;
    color: var(--primary-bg);
    margin-top: 20px;
    margin-bottom: 6px;
}

.legal-highlight {
    background: #f0f7ff;
    border-left: 4px solid var(--accent-blue);
    padding: 14px 20px;
    border-radius: 0 8px 8px 0;
    margin: 18px 0;
}

.legal-highlight p:last-child {
    margin-bottom: 0;
}

.legal-signed {
    font-weight: 600;
    color: var(--primary-bg);
    text-align: right;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px dashed #ccc;
}

/* Legal Page 响应式 */
@media (max-width: 768px) {
    .legal-page h1 {
        font-size: 1.5rem;
    }

    .legal-page h2 {
        font-size: 1.15rem;
    }

    .legal-page p {
        font-size: 0.88rem;
        text-align: left;
    }

    .legal-table-wrap {
        overflow-x: auto;
    }
}

.legal-page h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary-bg);
    margin-top: 25px;
    margin-bottom: 10px;
}

.legal-page ul {
    margin-left: 18px;
    margin-bottom: 15px;
}

.legal-page ul li {
    font-size: 0.95rem;
    color: #444;
    line-height: 1.8;
    margin-bottom: 5px;
}

.contact-list {
    list-style: none;
    padding-left: 0;
    margin-left: 0;
    background: #f6f8fc;
    border-radius: 10px;
    padding: 20px 25px;
    border-left: 4px solid var(--accent-blue);
}

.contact-list li {
    margin-bottom: 8px;
}

.legal-table-wrap {
    margin: 18px 0 22px;
    overflow-x: auto;
}

.legal-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid #e0e6f0;
    border-radius: 8px;
    overflow: hidden;
    font-size: 0.9rem;
}

.legal-table thead {
    background: linear-gradient(135deg, #0a0e27, #16213e);
    color: #ffffff;
}

.legal-table thead th {
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    line-height: 1.5;
}

.legal-table thead small {
    display: block;
    color: #b0bbd3;
    font-weight: 400;
    margin-top: 4px;
}

.legal-table tbody tr:nth-child(even) {
    background: #f8fafd;
}

.legal-table tbody td {
    padding: 12px 15px;
    color: #444;
    line-height: 1.6;
    border-top: 1px solid #eef2f8;
    vertical-align: top;
}