/* ============================================
   2026 AI 產學發展論壇 - Main Stylesheet
   Color Palette:
   - Navy Blue: #0A1628, #0D1F3C, #1A3A6B
   - Gold: #C9A84C, #D4A843, #F0C060, #FFD700
   - White: #FFFFFF, #F8F9FA
   - Gray: #6B7280, #9CA3AF
============================================ */

/* ========== RESET & BASE ========== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --navy-dark: #060F1E;
    --navy: #0A1628;
    --navy-mid: #0D1F3C;
    --navy-light: #1A3A6B;
    --gold-dark: #A07830;
    --gold: #C9A84C;
    --gold-mid: #D4A843;
    --gold-light: #F0C060;
    --gold-bright: #FFD700;
    --white: #FFFFFF;
    --off-white: #F8F9FA;
    --light-gray: #E5E7EB;
    --mid-gray: #9CA3AF;
    --dark-gray: #6B7280;
    --text-dark: #1F2937;
    --text-medium: #4B5563;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.16);
    --shadow-gold: 0 8px 32px rgba(201,168,76,0.3);
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --section-padding: 100px 0;
}

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

body {
    font-family: 'Noto Sans TC', 'Outfit', sans-serif;
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

ul { list-style: none; }

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== UTILITY ========== */
.gold-text { color: var(--gold-light); }

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header.light .section-title,
.section-header.light .section-desc {
    color: var(--white);
}

.section-tag {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(201,168,76,0.15);
    border: 1px solid rgba(201,168,76,0.4);
    border-radius: 100px;
    color: var(--gold);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.section-tag.gold {
    background: rgba(201,168,76,0.2);
    border-color: rgba(201,168,76,0.5);
    color: var(--gold-light);
}

.section-title {
    font-family: 'Outfit', 'Noto Sans TC', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-medium);
    max-width: 620px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold), var(--gold-mid));
    color: var(--navy);
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(201,168,76,0.45);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.5);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}

.btn-outline-dark {
    background: transparent;
    color: var(--navy);
    border-color: var(--navy);
}

.btn-outline-dark:hover {
    background: var(--navy);
    color: var(--white);
}

.btn-gold {
    background: linear-gradient(135deg, var(--gold), var(--gold-dark));
    color: var(--white);
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(201,168,76,0.5);
}

.btn-outline-gold {
    background: transparent;
    color: var(--gold-light);
    border-color: var(--gold);
}

.btn-outline-gold:hover {
    background: var(--gold);
    color: var(--navy);
}

/* ========== HEADER ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0;
    transition: var(--transition);
    /* 白色 Hero 下預設用深藍底，避免 nav 文字在白底上看不見 */
    background: rgba(6, 15, 30, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.header.scrolled {
    background: rgba(6, 15, 30, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(201,168,76,0.2);
    padding: 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-year {
    font-family: 'Outfit', sans-serif;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--gold-light);
    letter-spacing: -0.02em;
}

.logo-title {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.8);
    letter-spacing: 0.05em;
    font-weight: 500;
}

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

.nav-link {
    color: rgba(255,255,255,0.85);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--gold-light);
    background: rgba(201,168,76,0.1);
}

.btn-register {
    margin-left: 16px;
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--gold), var(--gold-mid));
    color: var(--navy);
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: var(--transition);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========== HERO ========== */
.hero {
    position: relative;
    /*
     * 高度公式說明：
     * - 最小 500px，避免太矮
     * - 中間 50vw：随視窗寬度等比，平板/電腦都合理
     * - 最大 85vh：防止 iPad 直式时 100vh 讓橫式 Banner 被拉得很高
     */
    height: clamp(500px, 50vw, 85vh);
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #FAFAFA;
}

.hero-banner {
    position: absolute;
    inset: 0;
}

.hero-banner-img {
    display: block;
    width: 100%;
    height: 100%;            /* 必須撐滿 picture/banner 高度 */
    object-fit: cover;
    /* 桌機/平板：靠左對齊，保留右側金色箭頭與流線 */
    object-position: left center;
    transition: transform 0.1s linear;
}

/* picture 元素：absolute 撐滿 .hero-banner，相容桌機 flex 與手機 block 兩種排版 */
.hero-banner picture {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* 電腦版遮罩：極輕薄，保留 Banner 原彩
   文字可讀性由 .hero-content 自身的 backdrop 處理 */
.hero-overlay {
    display: none;
}

/* ====================================================
   桌機/平板 Hero 文字區：絕對定位，置中於 Banner
   文字背景用半透明北極光效果，保護可讀性且不將 Banner 刷淡
==================================================== */

.hero-content {
    position: absolute;
    z-index: 2;
    left: 77%;
    top: 60%;
    transform: translate(-50%, -50%);
    width: 54vw;
    max-width: 760px;
    text-align: left;
    /* 冰晶玻璃卡片：半透明底色讓文字清晰，Banner 原彩從兩側透出 */
    padding: 32px 40px;
    
	/*
	background: rgba(255, 255, 255, 0.62);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
	*/
}
.hero-badge {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(201,168,76,0.15);
    border: 1.5px solid rgba(201,168,76,0.6);
    border-radius: 100px;
    color: var(--gold-dark);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 28px;
    animation: fadeInUp 0.8s ease both;
}

.hero-title {
    font-family: 'Outfit', 'Noto Sans TC', sans-serif;
    /* vw 單位讓字體隨視窗等比縮放，clamp 保護極端值 */
    font-size: clamp(1.4rem, 5vw, 6.5rem);
    font-weight: 800;
    color: var(--navy);
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin-bottom: clamp(12px, 1.5vw, 24px);
    animation: fadeInUp 0.8s 0.1s ease both;
}

.hero-title .gold-text {
    color: var(--gold);          /* 金色強調字 */
    position: relative;
}

/* 金色底線裝飾 */
.hero-title .gold-text::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light));
    border-radius: 2px;
    opacity: 0.6;
}

.hero-subtitle {
    font-size: clamp(0.82rem, 4vw, 5rem);
    color: var(--text-medium);
    max-width: 100%;             /* 跟隨父容器 vw 寬度 */
    margin-bottom: clamp(20px, 2.5vw, 40px);
    line-height: 1.8;
    animation: fadeInUp 0.8s 0.2s ease both;
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: clamp(6px, 0.8vw, 12px);
    margin-bottom: clamp(24px, 3vw, 48px);
    animation: fadeInUp 0.8s 0.3s ease both;
}

.hero-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dark);
    font-size: clamp(1rem, 2vw, 3.5rem);
    font-weight: 500;
}

.hero-meta-item svg {
    color: var(--gold);          /* 金色圖示 */
    flex-shrink: 0;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s 0.4s ease both;
}

/* 在白色 Hero 上，outline 按鈕改為深色邊線 */
.hero .btn-outline {
    color: var(--navy);
    border-color: rgba(10, 22, 40, 0.4);
}

.hero .btn-outline:hover {
    background: rgba(10, 22, 40, 0.08);
    border-color: var(--navy);
}

.hero-scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(10, 22, 40, 0.35);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    animation: bounce 2s infinite;
    z-index: 2;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid rgba(10, 22, 40, 0.35);
    border-bottom: 2px solid rgba(10, 22, 40, 0.35);
    transform: rotate(45deg);
}

/* ========== STATS SECTION ========== */
.stats-section {
    background: var(--navy);
    padding: 60px 0;
    border-bottom: 1px solid rgba(201,168,76,0.15);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    border-right: 1px solid rgba(201,168,76,0.15);
    transition: var(--transition);
}

.stat-item:last-child { border-right: none; }

.stat-item:hover {
    background: rgba(201,168,76,0.05);
}

.stat-number {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--gold-light);
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.65);
    font-weight: 500;
}

/* ========== ABOUT SECTION ========== */
.about-section {
    padding: var(--section-padding);
    background: var(--off-white);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 20px;
}

.feature-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 36px 28px;
    text-align: center;
    border: 1px solid var(--light-gray);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(201,168,76,0.3);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, rgba(201,168,76,0.15), rgba(201,168,76,0.08));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: var(--gold);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--gold), var(--gold-mid));
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-medium);
    line-height: 1.6;
}

/* ========== AGENDA SECTION ========== */
.agenda-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-mid) 100%);
    position: relative;
    overflow: hidden;
}

.agenda-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(201,168,76,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.agenda-date-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(201,168,76,0.12);
    border: 1px solid rgba(201,168,76,0.3);
    border-radius: 8px;
    padding: 14px 24px;
    margin-bottom: 48px;
    width: fit-content;
    color: var(--gold-light);
    font-size: 1.1rem;
    font-weight: 600;
}

.agenda-timeline {
    position: relative;
}

.agenda-item {
    display: grid;
    grid-template-columns: 140px 40px 1fr;
    gap: 0 20px;
    margin-bottom: 8px;
    align-items: start;
}

.agenda-time {
    text-align: right;
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.time-start {
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--gold-light);
}

.time-sep {
    color: rgba(255,255,255,0.3);
    font-size: 0.85rem;
    line-height: 1.2;
}

.time-end {
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

.agenda-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    padding-top: 20px;
}

.agenda-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid var(--navy-dark);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.agenda-dot.registration { background: #6366F1; }
.agenda-dot.opening { background: var(--gold); }
.agenda-dot.keynote { background: #0EA5E9; }
.agenda-dot.break { background: #8B5CF6; }
.agenda-dot.lunch { background: #10B981; }
.agenda-dot.panel { background: #F97316; }
.agenda-dot.closing { background: var(--gold-light); }

.agenda-line {
    width: 2px;
    flex: 1;
    min-height: 48px;
    background: linear-gradient(to bottom, rgba(201,168,76,0.3), transparent);
    margin-top: 4px;
}

.agenda-content {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--border-radius);
    padding: 20px 24px;
    margin-bottom: 8px;
    transition: var(--transition);
}

.agenda-content:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(201,168,76,0.25);
    transform: translateX(4px);
}

.agenda-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
    background: rgba(201,168,76,0.15);
    color: var(--gold-light);
    border: 1px solid rgba(201,168,76,0.3);
}

.agenda-item[data-type="keynote"] .agenda-tag {
    background: rgba(14,165,233,0.15);
    color: #7DD3FC;
    border-color: rgba(14,165,233,0.3);
}

.agenda-item[data-type="panel"] .agenda-tag {
    background: rgba(249,115,22,0.15);
    color: #FCA468;
    border-color: rgba(249,115,22,0.3);
}

.agenda-item[data-type="break"] .agenda-tag,
.agenda-item[data-type="lunch"] .agenda-tag {
    background: rgba(139,92,246,0.15);
    color: #C4B5FD;
    border-color: rgba(139,92,246,0.3);
}

.agenda-item[data-type="registration"] .agenda-tag,
.agenda-item[data-type="opening"] .agenda-tag,
.agenda-item[data-type="closing"] .agenda-tag {
    background: rgba(201,168,76,0.15);
    color: var(--gold-light);
    border-color: rgba(201,168,76,0.3);
}

.agenda-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 6px;
}

.agenda-desc {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.55);
    line-height: 1.5;
}

/* ========== SPEAKERS SECTION ========== */
.speakers-section {
    padding: var(--section-padding);
    background: var(--white);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.speaker-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--light-gray);
    transition: var(--transition);
    text-align: center;
}

.speaker-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(201,168,76,0.4);
}

.speaker-avatar {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: linear-gradient(135deg, var(--navy-mid), var(--navy-light));
    position: relative;
}

.speaker-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.speaker-card:hover .speaker-avatar img {
    transform: scale(1.05);
}

.speaker-avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.3);
    background: linear-gradient(135deg, var(--navy-mid), var(--navy-light));
}

.speaker-info {
    padding: 24px 20px;
}

.speaker-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.speaker-title {
    font-size: 0.85rem;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 4px;
}

.speaker-org {
    font-size: 0.82rem;
    color: var(--dark-gray);
}

.speakers-note {
    text-align: center;
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin-top: 40px;
    font-style: italic;
}

/* ========== PANELISTS SECTION ========== */
.panelists-section {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--navy-dark) 0%, var(--navy) 100%);
}

.panelists-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.panelist-card {
    text-align: center;
    transition: var(--transition);
}

.panelist-card:hover {
    transform: translateY(-6px);
}

.panelist-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 16px;
    border: 3px solid rgba(201,168,76,0.3);
    background: var(--navy-light);
    transition: var(--transition);
}

.panelist-card:hover .panelist-avatar {
    border-color: var(--gold);
    box-shadow: 0 0 0 6px rgba(201,168,76,0.1);
}

.panelist-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.panelist-avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: rgba(255,255,255,0.3);
}

.panelist-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.panelist-title {
    font-size: 0.82rem;
    color: var(--gold-light);
    font-weight: 500;
    margin-bottom: 2px;
}

.panelist-org {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
}

/* ========== SPONSORS SECTION ========== */
.sponsors-section {
    padding: var(--section-padding);
    background: var(--off-white);
}

.sponsors-tiers {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.sponsor-tier {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.tier-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--dark-gray);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 6px 20px;
    border: 1px solid var(--light-gray);
    border-radius: 100px;
    background: var(--white);
}

.sponsor-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.sponsor-logo-item {
    width: 180px;
    height: 90px;
    background: var(--white);
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    overflow: hidden;
}

.sponsor-logo-item.large {
    width: 280px;
    height: 100px;
}

.sponsor-logo-item.small {
    width: 140px;
    height: 70px;
}

.sponsor-logo-item:hover {
    border-color: var(--gold);
    box-shadow: var(--shadow-gold);
    transform: translateY(-4px);
}

.sponsor-logo-item img {
    max-width: 80%;
    max-height: 70%;
    object-fit: contain;
}

.sponsor-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(201,168,76,0.05), rgba(10,22,40,0.05));
    font-size: 0.85rem;
    color: var(--dark-gray);
    font-weight: 500;
    text-align: center;
    padding: 12px;
}

.main-organizer .sponsor-logo-item {
    border-color: rgba(201,168,76,0.4);
    background: linear-gradient(135deg, var(--navy), var(--navy-mid));
}

.main-organizer .sponsor-placeholder {
    background: transparent;
    color: var(--gold-light);
    font-size: 1rem;
    font-weight: 700;
}

.sponsor-cta {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--light-gray);
}

.sponsor-cta p {
    font-size: 1.1rem;
    color: var(--text-medium);
    margin-bottom: 20px;
}

/* ========== TRANSPORT SECTION ========== */
.transport-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--navy-dark), var(--navy-mid));
}

.transport-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.transport-address {
    display: flex;
    gap: 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(201,168,76,0.2);
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 28px;
}

.transport-address svg {
    color: var(--gold-light);
    flex-shrink: 0;
    margin-top: 4px;
}

.transport-address h3 {
    font-size: 1rem;
    color: var(--gold-light);
    margin-bottom: 8px;
    font-weight: 600;
}

.transport-address p {
    color: rgba(255,255,255,0.8);
    line-height: 1.7;
    font-size: 0.95rem;
}

.transport-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.transport-method {
    display: flex;
    gap: 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--border-radius);
    padding: 20px;
    transition: var(--transition);
}

.transport-method:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(201,168,76,0.25);
}

.method-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.method-icon.metro { background: rgba(99,102,241,0.2); color: #A5B4FC; }
.method-icon.bus { background: rgba(16,185,129,0.2); color: #6EE7B7; }
.method-icon.car { background: rgba(249,115,22,0.2); color: #FCA468; }
.method-icon.taxi { background: rgba(234,179,8,0.2); color: #FDE047; }

.method-content h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 6px;
}

.method-content p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}

.map-btn {
    width: 100%;
    justify-content: center;
}

.transport-map {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 2px solid rgba(201,168,76,0.2);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

/* ========== REGISTER SECTION ========== */
.register-section {
    padding: var(--section-padding);
    position: relative;
    background: linear-gradient(135deg, var(--navy) 0%, #0F2850 100%);
    overflow: hidden;
}

.register-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(201,168,76,0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(201,168,76,0.08) 0%, transparent 60%);
    pointer-events: none;
}

.register-content {
    position: relative;
    z-index: 1;
}

.register-cards {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 16px;
}

.register-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--border-radius-lg);
    padding: 40px 36px;
    text-align: center;
    width: 280px;
    transition: var(--transition);
    position: relative;
}

.register-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(201,168,76,0.3);
    transform: translateY(-8px);
}

.register-card.featured {
    background: rgba(201,168,76,0.1);
    border-color: rgba(201,168,76,0.4);
    transform: translateY(-8px) scale(1.03);
}

.register-card.featured:hover {
    transform: translateY(-14px) scale(1.03);
}

.register-badge-card {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--gold), var(--gold-mid));
    color: var(--navy);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 100px;
    letter-spacing: 0.05em;
}

.register-card-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.register-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.register-price {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gold-light);
    margin-bottom: 24px;
}

.register-perks {
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.register-perks li {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    text-align: left;
    padding-left: 20px;
    position: relative;
}

.register-perks li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gold-light);
    font-weight: 700;
}

.register-note {
    text-align: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.85rem;
    margin-top: 40px;
    font-style: italic;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--navy-dark);
    padding: 60px 0 0;
    border-top: 1px solid rgba(201,168,76,0.15);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 16px;
}

.footer-logo .logo-year {
    font-size: 1.6rem;
}

.footer-desc {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
    margin-bottom: 20px;
}

.footer-date {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    font-weight: 600;
    font-size: 0.9rem;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.55);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--gold-light);
    padding-left: 4px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
    color: rgba(255,255,255,0.55);
    font-size: 0.9rem;
    line-height: 1.5;
}

.contact-item svg {
    color: var(--gold);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item a:hover {
    color: var(--gold-light);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    color: rgba(255,255,255,0.3);
    font-size: 0.82rem;
}

/* ========== BACK TO TOP ========== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold), var(--gold-mid));
    color: var(--navy);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-gold);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(201,168,76,0.5);
}

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

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

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

    .speakers-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .panelists-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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


@media (max-width: 768px) {
    :root { --section-padding: 70px 0; }



    /* ====================================================
       手機版 Banner：phone_banner.png（1672×941, 約 16:9）
       → Hero 最小高度 = 圖片原始比例高度（不會比圖矮）
       → 若文字超過圖片高度，section 自動往下撐
       → 圖與字均靠左，隨 vw 等比縮放
    ==================================================== */

    /* Hero：最小高度 = 圖片原始比例，文字超出時自動伸展 */
    .hero {
        min-height: calc(100vw * 941 / 1672);
        height: auto;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        align-items: flex-start;
        position: relative;
        overflow: hidden;
    }

    /* 手機圖片置中對齊，與原圖方向一致 */
    .hero-banner-img { object-position: center top; }


    /* 手機遮罩：覆蓋桌機的 display:none，由上往下淡入保護文字可讀性 */
    .hero-overlay {
        display: block;
        position: absolute;
        inset: 0;
        background: linear-gradient(
            to bottom,
            rgba(250,250,250,0.00) 0%,
            rgba(250,250,250,0.45) 55%,
            rgba(250,250,250,0.88) 80%,
            rgba(250,250,250,0.95) 100%
        );
    }
    /* 文字區：relative，真正撐起 hero；padding-top 留出 Banner 圖的視覺空間 */
    .hero-content {
        position: relative !important;
        top: auto !important;
        left: auto !important;
        bottom: auto !important;
        transform: none !important;
        width: 88% !important;
        max-width: none !important;
        margin-left: 4% !important;
        /* 上方 padding = 圖片高度的 55%，讓 Banner 視覺露出來 */
        padding: calc(70vw * 941 / 1672 * 0.55) 0 4vw 0 !important;
        z-index: 2;
        text-align: left !important;
    }

    /* 手機字體：隨 vw 等比縮放 */
    .hero-title       { font-size: clamp(1rem, 5vw, 2.2rem) !important; margin-bottom: 1.2vw !important; }
    .hero-keywords span { font-size: clamp(0.6rem, 2.5vw, 1rem) !important; }
    .hero-subtitle    { font-size: clamp(0.7rem, 2.8vw, 1rem) !important; margin-bottom: 1.5vw !important; }
    .hero-meta-item   { font-size: clamp(0.65rem, 2.5vw, 0.9rem) !important; }
    .hero-badge       { font-size: clamp(0.6rem, 2.2vw, 0.85rem) !important; margin-bottom: 1vw !important; padding: 3px 10px !important; }
    .hero-meta        { gap: 1vw !important; margin-bottom: 1.5vw !important; }
    .hero-actions     { gap: 1.5vw !important; margin-top: 0 !important; }
    .hero-actions .btn { padding: 6px 14px !important; font-size: clamp(0.7rem, 2.5vw, 0.95rem) !important; }
    .hero-downloads   { margin-top: 1vw !important; gap: 1.5vw !important; }
    .download-btn     { padding: 5px 10px !important; font-size: clamp(0.6rem, 2.2vw, 0.8rem) !important; }
    .hero-scroll-hint { display: none !important; }
    /* ---- 其他響應式規則 ---- */
    .nav { display: none; position: fixed; top: 72px; left: 0; right: 0; background: rgba(6,15,30,0.97); backdrop-filter: blur(20px); padding: 24px; flex-direction: column; border-bottom: 1px solid rgba(201,168,76,0.15); }
    .nav.open { display: flex; }
    .nav-list { flex-direction: column; gap: 4px; width: 100%; }
    .nav-link { display: block; padding: 12px 16px; font-size: 1rem; }
    .btn-register { margin-left: 0; margin-top: 12px; width: 100%; text-align: center; }
    .menu-toggle { display: flex; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item:nth-child(2) { border-right: none; }
    .stat-item:nth-child(1), .stat-item:nth-child(2) { border-bottom: 1px solid rgba(201,168,76,0.15); }
    .about-features { grid-template-columns: 1fr; gap: 16px; }
    .agenda-item { grid-template-columns: 90px 30px 1fr; gap: 0 12px; }
    .speakers-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .panelists-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .register-cards { flex-direction: column; align-items: center; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: fit-content; }
}
@media (max-width: 480px) {
    .speakers-grid {
        grid-template-columns: 1fr;
    }

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

    .agenda-item {
        grid-template-columns: 70px 24px 1fr;
        gap: 0 8px;
    }

    .time-start {
        font-size: 0.9rem;
    }

    .time-end { display: none; }
    .time-sep { display: none; }

    .sponsor-logo-item {
        width: 140px;
    }
}

/* =============================================
   NEW SECTIONS – added with real content update
============================================= */

/* -------- HERO KEYWORDS BAR -------- */
.hero-keywords {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
    animation: fadeInUp 0.8s 0.15s ease both;
}
.hero-keywords span { font-size: 1rem; font-weight: 700; color: var(--navy); letter-spacing: 0.03em; }
.hero-keywords .sep { color: var(--gold); font-weight: 800; font-size: 1.1rem; }

/* -------- HERO DOWNLOAD BUTTONS -------- */
.hero-downloads {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
    animation: fadeInUp 0.8s 0.5s ease both;
}
.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 18px;
    background: rgba(10,22,40,0.06);
    border: 1.5px solid rgba(10,22,40,0.2);
    border-radius: 8px;
    font-size: 0.83rem;
    font-weight: 600;
    color: var(--navy);
    transition: var(--transition);
}
.download-btn:hover { background: var(--navy); color: var(--white); border-color: var(--navy); transform: translateY(-2px); }
.download-btn.tbd { opacity: 0.5; cursor: default; pointer-events: none; border-style: dashed; }

/* -------- ABOUT INTRO TEXT -------- */
.about-intro-text {
    max-width: 820px;
    margin: 0 auto 60px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.about-intro-text p { font-size: 1.05rem; color: var(--text-medium); line-height: 1.85; text-align: center; }
.about-intro-text strong { color: var(--gold-dark); font-weight: 700; }

/* -------- 請檢查 BADGE -------- */
.check-badge {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(239,68,68,0.12);
    border: 1.5px solid rgba(239,68,68,0.4);
    border-radius: 6px;
    color: #DC2626;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 0.04em;
}
.check-note {
    display: block;
    margin-top: 8px;
    padding: 8px 12px;
    background: rgba(239,68,68,0.06);
    border-left: 3px solid rgba(239,68,68,0.4);
    border-radius: 0 6px 6px 0;
    color: #B91C1C;
    font-size: 0.78rem;
    line-height: 1.6;
}
.check-inline { color: #DC2626; font-weight: 700; font-size: 0.85rem; }
.tbd-text     { color: var(--dark-gray); font-style: italic; }
.card-check-badge {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.35);
    border-radius: 5px;
    color: #DC2626;
    font-size: 0.72rem;
    font-weight: 700;
    margin: 0 auto 8px;
}
.card-check-badge.small { font-size: 0.68rem; padding: 2px 8px; }
.card-check-note {
    margin-top: 8px;
    padding: 7px 10px;
    background: rgba(239,68,68,0.05);
    border-left: 3px solid rgba(239,68,68,0.3);
    color: #B91C1C;
    font-size: 0.74rem;
    line-height: 1.5;
    border-radius: 0 6px 6px 0;
    text-align: left;
}

/* -------- AGENDA PERSON / LABEL -------- */
.agenda-label  { color: rgba(255,255,255,0.45); font-size: 0.8rem; }
.agenda-person { font-weight: 700; color: var(--gold-light); }
.forum-topics  { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.forum-topic-item {
    display: block;
    padding: 6px 10px;
    background: rgba(255,255,255,0.04);
    border-radius: 6px;
    border-left: 3px solid rgba(201,168,76,0.35);
    font-size: 0.83rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.5;
}

/* -------- SPEAKER CARD (full rewrite) -------- */
.speakers-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 32px; }
.speaker-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--light-gray);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
}
.speaker-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(201,168,76,0.4); }
.speaker-avatar { width: 100%; aspect-ratio: 3/2; overflow: hidden; background: linear-gradient(135deg, var(--navy-mid), var(--navy-light)); }
.speaker-avatar img { width:100%; height:100%; object-fit:cover; transition: transform 0.4s ease; }
.speaker-card:hover .speaker-avatar img { transform: scale(1.04); }
.speaker-avatar-placeholder {
    width:100%; height:100%;
    display:flex; align-items:center; justify-content:center;
    font-size: 5rem;
    color: rgba(255,255,255,0.25);
    background: linear-gradient(135deg,var(--navy-mid),var(--navy-light));
}
.speaker-info  { padding: 24px; display: flex; flex-direction: column; flex: 1; text-align: left; }
.speaker-name  { font-size: 1.3rem; font-weight: 800; color: var(--text-dark); margin-bottom: 4px; }
.speaker-title { font-size: 0.88rem; color: var(--gold); font-weight: 600; margin-bottom: 2px; }
.speaker-org   { font-size: 0.83rem; color: var(--dark-gray); margin-bottom: 0; }
.speaker-topic {
    display: flex; flex-direction: column; gap: 4px;
    margin: 12px 0 10px;
    padding: 10px 12px;
    background: rgba(201,168,76,0.06);
    border-radius: 8px;
    border-left: 3px solid var(--gold);
}
.topic-label { font-size: 0.72rem; font-weight: 700; color: var(--gold-dark); letter-spacing: 0.06em; text-transform: uppercase; }
.speaker-topic .tbd { color: var(--dark-gray); font-style: italic; font-size: 0.88rem; }
.speaker-bio { font-size: 0.82rem; color: var(--text-medium); line-height: 1.65; text-align: left; margin-bottom: 8px; }
.speakers-note { text-align:center; color:var(--dark-gray); font-size:0.9rem; margin-top:40px; font-style:italic; }

/* -------- PANELISTS – FORUM BLOCK -------- */
.forum-block { margin-bottom: 64px; }
.forum-block:last-child { margin-bottom: 0; }
.forum-label {
    display: flex; flex-direction: column; gap: 6px;
    padding: 20px 28px;
    background: rgba(201,168,76,0.1);
    border: 1px solid rgba(201,168,76,0.25);
    border-radius: var(--border-radius);
    margin-bottom: 32px;
}
.forum-num        { font-size: 0.8rem; font-weight: 700; color: var(--gold); letter-spacing: 0.1em; text-transform: uppercase; }
.forum-name       { font-size: 1.25rem; font-weight: 800; color: var(--white); }
.forum-moderator  { font-size: 0.88rem; color: rgba(255,255,255,0.65); }
.forum-moderator strong { color: var(--gold-light); }

.panelists-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.panelist-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--border-radius);
    padding: 24px 20px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}
.panelist-card:hover { background: rgba(255,255,255,0.08); border-color: rgba(201,168,76,0.3); transform: translateY(-6px); }
.panelist-avatar {
    width: 100px; height: 100px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 14px;
    border: 3px solid rgba(201,168,76,0.3);
    background: var(--navy-light);
    transition: var(--transition);
}
.panelist-card:hover .panelist-avatar { border-color: var(--gold); box-shadow: 0 0 0 5px rgba(201,168,76,0.12); }
.panelist-avatar img { width:100%; height:100%; object-fit:cover; }
.panelist-avatar-placeholder { width:100%; height:100%; display:flex; align-items:center; justify-content:center; font-size:2.2rem; color:rgba(255,255,255,0.3); }
.panelist-name  { font-size: 1.05rem; font-weight: 800; color: var(--white); margin-bottom: 4px; }
.check-name     { color: #FCA5A5; }
.panelist-title { font-size: 0.82rem; color: var(--gold-light); font-weight: 600; margin-bottom: 2px; }
.panelist-org   { font-size: 0.78rem; color: rgba(255,255,255,0.5); margin-bottom: 10px; }
.panelist-topic {
    font-size: 0.82rem; font-weight: 700;
    color: rgba(255,255,255,0.8);
    padding: 6px 10px;
    background: rgba(201,168,76,0.1);
    border-radius: 6px;
    margin-bottom: 10px;
    border-left: 3px solid var(--gold);
    text-align: left;
}
.panelist-bio { font-size: 0.78rem; color: rgba(255,255,255,0.5); line-height: 1.6; text-align: left; }

/* -------- CONTACT SECTION -------- */
.contact-section { padding: var(--section-padding); background: var(--off-white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-card, .org-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    border: 1px solid var(--light-gray);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.contact-card:hover, .org-card:hover { box-shadow: var(--shadow-md); border-color: rgba(201,168,76,0.3); }
.contact-org h3, .org-card h3 { font-size: 1.2rem; font-weight: 800; color: var(--navy); margin-bottom: 6px; }
.contact-org-en { font-size: 0.82rem; color: var(--dark-gray); line-height: 1.6; margin-bottom: 28px; }
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.contact-row { display: flex; gap: 14px; align-items: flex-start; }
.contact-row svg { color: var(--gold); flex-shrink: 0; margin-top: 3px; }
.contact-label { font-size: 0.75rem; font-weight: 700; color: var(--dark-gray); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 4px; }
.contact-row p, .contact-row a { font-size: 0.95rem; color: var(--text-dark); line-height: 1.6; }
.contact-row a:hover { color: var(--gold); }

.org-card h3 { padding-bottom: 16px; border-bottom: 2px solid var(--light-gray); margin-bottom: 24px; }
.org-grid { display: flex; flex-direction: column; gap: 16px; }
.org-item { display: grid; grid-template-columns: 110px 1fr; gap: 0 16px; align-items: start; }
.org-role { font-size: 0.75rem; font-weight: 700; color: var(--gold-dark); letter-spacing: 0.04em; text-transform: uppercase; padding-top: 3px; }
.org-name { font-size: 1rem; font-weight: 700; color: var(--text-dark); margin-bottom: 2px; }
.org-unit { font-size: 0.82rem; color: var(--dark-gray); grid-column: 2; }

/* -------- RESPONSIVE -------- */
@media (max-width: 1024px) {
    .speakers-grid  { grid-template-columns: repeat(2,1fr); }
    .panelists-grid { grid-template-columns: repeat(2,1fr); }
    .contact-grid   { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .hero-keywords span { font-size: 0.82rem; }
    .hero-downloads { flex-direction: column; align-items: flex-start; }
    .about-intro-text p { text-align: left; }
    .speakers-grid  { grid-template-columns: 1fr; gap: 20px; }
    .panelists-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
    .forum-label    { padding: 16px 20px; }
    .forum-name     { font-size: 1.05rem; }
    .contact-card, .org-card { padding: 28px 20px; }
    .org-item       { grid-template-columns: 90px 1fr; }
}
@media (max-width: 480px) {
    .panelists-grid { grid-template-columns: 1fr; }
    .speakers-grid  { grid-template-columns: 1fr; }
}