/* 
    TGIS GeoAI Forum Stylesheet 
    Theme: Spatial information, urban governance, smart operations
    Style: Premium, dark mode, glassmorphism, dynamic animations
*/

:root {
    /* Colors */
    --primary: #3fc3ff;
    --primary-dark: #0081bb;
    --secondary: #ffbd3a;
    --bg-dark: #0a1128;
    --bg-darker: #050814;
    --text-main: #f8f9fa;
    --text-muted: #adb5bd;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-glow: linear-gradient(90deg, var(--primary), #9d29ff, var(--primary));

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s ease;
    --transition-slow: 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans TC', sans-serif;
    background-color: var(--bg-darker);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 576px) {
    .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    }
}

/* Glass Panel Utility */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 16px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
    cursor: pointer;
    text-align: center;
    border: none;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 1.5rem;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 2rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-main);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.4);
}

.glow {
    position: relative;
    z-index: 1;
}

.glow::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-glow);
    background-size: 200% auto;
    z-index: -1;
    border-radius: 50px;
    filter: blur(8px);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.glow:hover::before {
    opacity: 1;
    animation: gradientGlow 3s linear infinite;
}

@keyframes gradientGlow {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.pulse-animation {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.7);
    }

    70% {
        transform: scale(1.02);
        box-shadow: 0 0 0 15px rgba(0, 212, 255, 0);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(0, 212, 255, 0);
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    padding: 0.4rem 0;
    background: rgba(5, 8, 20, 0.4);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
    transition: var(--transition-fast);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn) {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.2rem;
    position: relative;
    transition: var(--transition-fast);
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-fast);
}

.nav-links a:not(.btn):hover {
    color: var(--primary);
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: auto;
    padding-top: 150px;
    padding-bottom: 2rem;
    display: flex;
    align-items: center;
    background: url('./img/hero_bg.png') center no-repeat;
    background-size: cover;	
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(5, 8, 20, 0.15) 50%, var(--bg-darker) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 100px;
    transform: translateY(-60px);
    max-width: 1150px;
}

.hero-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #ffffff;
    border-radius: 50px;
    font-size: clamp(1rem, 2.34vw, 1.5rem)
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(2.2rem, 4vw, 4.5rem);
    font-weight: 1500;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--primary) 0%, #ffffff 45%, var(--secondary) 70%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(68, 214, 240, 0.979), 0 0 40px rgba(98, 184, 224, 0.295);
}

.hero-title2 {
    position: relative;
    display: block;

    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.06;
    letter-spacing: 0.03em;

    color: #ffffff;

    text-shadow:
        0 3px 8px rgba(0,0,0,0.75),
        0 0 18px rgba(90,190,255,0.28);
}


/* 真正的橫向能量線 */
.hero-beam {
    position: relative;
    width: min(96vw, 1180px);
    height: 26px;
    margin: -0.35rem 0 0;
    background:
        radial-gradient(
            ellipse at 50% 50%,
            rgba(255, 220, 90, 1) 0%,
            rgba(251, 255, 162, 1) 7%,
            rgba(255, 220, 90, 0.38) 16%,
            transparent 34%
        ),
        linear-gradient(
            90deg,
            transparent 0%,
            rgba(0, 220, 255, 1) 5%,
            rgba(150, 245, 255, 1) 42%,
            rgba(255, 220, 90, 1) 50%,
            rgba(150, 245, 255, 1) 58%,
            rgba(0, 220, 255, 1) 78%,
            rgba(0, 220, 255, 0) 92%,
            transparent 100%
        );

    background-size: 100% 100%, 100% 3px;
    background-position: center, center;
    background-repeat: no-repeat;
    filter:
        drop-shadow(0 0 8px rgba(0, 220, 255, 0.95))
        drop-shadow(0 0 20px rgba(0, 180, 255, 0.65))
        drop-shadow(0 0 32px rgba(255, 210, 80, 0.55));
    opacity: 1;
    pointer-events: none;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(
            circle at center,
            rgba(120,180,255,0.14) 0%,
            rgba(120,180,255,0.08) 22%,
            rgba(0,0,0,0) 55%
        );
    pointer-events: none;
}
.hero-overlay {
    background:
        linear-gradient(
            to bottom,
            rgba(0,0,0,0.08) 0%,
            rgba(0, 10, 35, 0.22) 75%,
            rgb(0 8 30 / 71%) 100%
        );
}
@media (max-width: 576px) {
    .navbar {
   
    padding: 0.5rem 0 0.2rem;
    background: 
    linear-gradient(
        to bottom,
        #00000050 0%,
        #00000070 85%,
        #00000000 100%
    );
    }
    .hero {
    background-position: right top; 
    background-size: 300% !important;
    }
    .hero-content {
        padding-top: 20px;
    }

    .hero-title2 {
        font-size: clamp(2.8rem, 9vw, 3.15rem);
        line-height: 1.08;
        /* letter-spacing: 0.25em; */
        /* text-align: center; */
    }
   
    .hero-title2 span{
        display: block;
        letter-spacing: 0.15rem;
    }

      .hero-beam {
        width: 108%;
        height: 22px;
        margin: -0.28rem 0 0.4rem -4%;
        background-size: 100% 100%, 100% 3px;
       
        filter:
            drop-shadow(0 0 7px rgba(0, 220, 255, 0.85))
            drop-shadow(0 0 16px rgba(255, 210, 80, 0.45));
    }
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3.13vw, 1.5rem);
    color: #fbffa2;
    font-weight: 400;
    margin-top: 0.3rem;
    margin-bottom: 1rem;
    max-width: 930px;
}
@media (max-width: 576px) {
   
    .hero-subtitle {
        margin-top:0;
        margin-bottom:0;
    }
    
}

/* .hero-info-cards {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 0rem;
    flex-wrap: wrap;
} */

/* .info-card {
    display: flex;
    align-items: center;
    gap: 1.00rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03));
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-top: 2px solid var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 2px rgba(255, 255, 255, 0.2);
    padding: 2rem 2.5rem;
    border-radius: 16px;
    backdrop-filter: blur(12px);
    flex: 1;
    min-width: 320px;
    transition: var(--transition-fast);
}

.info-card:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.05));
    border-color: rgba(255, 255, 255, 0.25);
    border-top: 2px solid var(--secondary);
    box-shadow: 0 30px 50px rgba(0, 0, 0, 0.6), inset 0 1px 2px rgba(255, 255, 255, 0.3);
    transform: translateY(-5px);
}

.info-card .icon {
    font-size: 3rem;
    width: 76px;
    height: 76px;
    display: flex;
    align-items: left;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

.info-card .details {
    display: flex;
    flex-direction: column;
    align-items: left;
}

.info-card .label {
    font-size: 1.4rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.3rem;
}

.info-card .value {
    font-weight: 700;
    font-size: 1.5rem;
    line-height: 1.4;
    white-space: nowrap;
} */
/* =============================== */
.event-strip {
  display: inline-grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap:clamp(1.63rem, 4.69vw, 3rem);
  min-width: min(100%, 680px);
  padding: 18px 24px 18px  0;
  /* border: 1px solid rgba(111, 255, 233, 0.34); */
  border-left: 4px solid var(--cyan);
  border-radius: 8px;
  /* background: rgba(3, 12, 28, 0.72); */
  box-shadow: var(--shadow-green);  
}

.date-block {
  display: grid;
  gap: 0;
  color: var(--cyan);
  line-height: 1;
}

.date-block span {
  /* font-size: clamp(1.8rem, 3.2vw, 4.4rem); */
  font-size:clamp(2rem, 5.63vw, 3.6rem); 
  font-weight: 950;
}

.date-block small {
  color: rgba(244, 251, 255, 0.82);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.13vw, 2rem);
  margin-top: 8px;
}

.event-meta {
  display: grid;
  gap: 5px;
  color: var(--text);
  font-size: clamp(1.3rem, 3.13vw, 2rem);
  font-weight: 900;
}

.event-meta span:last-child {
  color:#FFF;
}
/* }======================================== */
@media (max-width: 576px) {
    .event-strip {  
        gap:clamp(0.7rem, 4.69vw, 3rem);
        min-width: min(100%, 680px);
        padding: 36px 0 18px;
        
    }
    .event-meta {   
    gap: 0;
    font-size: clamp(1.1rem, 3.13vw, 2rem);
    font-weight: 700;
   
}
   
    
}
.hero-actions {
    display: flex;
    gap: 1rem;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0.6;
    transition: var(--transition-fast);
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-indicator span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid #fff;
    border-radius: 12px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 6px;
    background: #fff;
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        transform: translate(-50%, 0);
        opacity: 1;
    }

    100% {
        transform: translate(-50%, 15px);
        opacity: 0;
    }
}

/* Common Section */
.section {
    padding: 2rem 0;
    position: relative;
}

.about-section {
    padding-top: 2rem;
}

.section-header {
    margin-bottom: 2rem;
}

.section-title {
    font-size: clamp(2rem, 3.91vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 0.5rem;

    background: linear-gradient(
        to bottom,
        #ffffff 0%,
        #bfafff 45%,
        #11a2e3 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    position: relative;
    
}

.title-line {
    height: 4px;
    width: 70px;
    margin: 0;
    background: linear-gradient(
        90deg,
        rgba(0,212,255,0),
        #61e7ff,
        #00bfff,
        rgba(0,212,255,0)
    );
    border-radius: 999px;
    box-shadow: 0 0 12px rgba(0,191,255,.45);
}

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

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about-section {
    background: var(--bg-dark);
    position: relative;
}

.about-section .section-title {
    font-size: clamp(2rem, 3.91vw, 2.5rem);
}

/* .about-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
} */

.about-content {
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.about-text {
    padding: 3rem;
}

.about-text .lead {
    font-size: 1.75rem;
    color: #fff7b0;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    color: #cbd5e1;
}
@media (max-width: 576px) {
    .about-text {
    padding: 2.5rem 1rem;
}
    .about-text .lead {
    font-size: 1.25rem;
}
    .about-text p {
        font-size: 1rem;
    }

}
.about-text strong {
    color: #fff;
    font-weight: 600;
}

.about-features {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
}

.feature-item {
    display: flex;
    flex-direction: column;
    padding-left: 2rem;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
    position: relative;
    transition: var(--transition-fast);
}

.feature-item:hover {
    border-left-color: var(--primary);
}

.feature-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 0;
    width: 10px;
    height: 10px;
    background: var(--bg-dark);
    border: 2px solid var(--primary);
    border-radius: 50%;
    transition: var(--transition-fast);
}

.feature-item:hover::before {
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.feature-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Agenda Section */
.agenda-section {
    background: var(--bg-darker);
    position: relative;
}

/* Agenda Timeline Design */
.agenda-timeline {
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    padding: 2rem 0;
}

/* .agenda-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 190px;
    width: 2px;
    background: rgba(255, 255, 255, 0.1);
} */

.agenda-item {
    display: flex;
    margin-bottom: 2rem;
    position: relative;
    flex-direction: row;
}

@media (max-width:576px) { 
    .agenda-item {
    /* display: flex;
    margin-bottom: 2rem;
    position: relative; */
    flex-direction: column;
    gap:8px;
    }
    .agenda-timeline::before {
        display: none;
    }
    
}


/* .agenda-item::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 186px;
    width: 10px;
    height: 10px;
    background: var(--bg-darker);
    border: 2px solid var(--primary);
    border-radius: 50%;
    z-index: 2;
    transition: var(--transition-fast);
}

.agenda-item:hover::before {
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary);
} */

.agenda-item.break-item::before {
    border-color: var(--text-muted);
}

.agenda-time {
    width: 170px;
    padding-top: 20px;
    font-family: 'Inter', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff7b0;
    text-align: right;
    padding-right: 30px;
}

.agenda-card {
    flex: 1;
    margin-left: 10px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 1.5rem 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 2rem;
}

@media (max-width: 800px) {
    .agenda-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
         margin-left:0;
    }
}

.agenda-card:hover {
    transform: translateX(5px);
    border-color: rgba(0, 212, 255, 0.4);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4), inset 0 1px 2px rgba(255, 255, 255, 0.2);
}

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

.agenda-topic {
    font-size: 1.4rem;
    font-weight: 780;
    /* margin-bottom: 0.5rem; */
    color: var(--text-main);
}

.agenda-topic.text-gradient-orange {
    background: linear-gradient(to right, #72e9ff, #0b91ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    font-size: 1.6rem;
}

.agenda-desc {
    font-size: 1.2rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.agenda-topic.highlight {
    /* color: var(--text-muted); */
    color: #FFF;
    font-weight: 500;
}

.agenda-card.break-card {
    background: rgba(255, 255, 255, 0.02);
    border-color: transparent;
}

.break-topic {
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 0;
}

.agenda-card.highlight-card {
    border-color: rgba(243, 152, 0, 0.3);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(243, 152, 0, 0.05) 100%);
}

.agenda-topic.highlight-topic {
    color: var(--secondary);
}

.agenda-speaker {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
    min-width: 270px;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
    padding-right: 2rem;
}

@media (max-width: 768px) {
    
    .agenda-speaker {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        padding-right: 0;
        padding-bottom: 1rem;
        width: 100%;
    }
    .agenda-speaker.phoneNoLine {
          border-bottom: none;
          padding-bottom: 0rem;
          margin-top: -1.5rem;
    }
    .agenda-topic {
    margin-bottom: 0.5rem;
}
}

.speaker-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.avatar-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(0, 212, 255, 0.15);
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.speaker-info {
    display: flex;
    flex-direction: column;
}

.agenda-speaker .name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.2rem;
}

.agenda-speaker .title {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Footer & Registration */
.footer {
    background: linear-gradient(to top, #02040a 0%, var(--bg-dark) 100%);
    padding: 6rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo {
    /* height: 70px; */
    margin-bottom: 1rem;
    width: 320px;
}

.anniversary-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(250, 255, 163, 0.1);
    color: #fbffa2;
    border-radius: 4px;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid rgba(250, 255, 163, 0.3);
}

.company-desc {
    color: var(--text-muted);
    font-size: 1.2rem;
}

.footer h3 {
    font-size: 1.25rem;
    margin-bottom: 0.3rem;
    font-weight: 600;
    color: #fff;
}

.contact-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-item .icon {
    font-size: 1.5rem;
    margin-top: 2px;
}

.contact-item .label {
    display: block;
    font-size: 1.5rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.contact-item .value {
    display: block;
    font-weight: 500;
    font-size: 1.2rem;
}

.footer-action p {
    color: #e6cbff;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Venue Section */
.venue-section {
    background: var(--bg-darker);
    position: relative;
}

.venue-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.venue-info-bar {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1.5rem 2.5rem;
    flex-wrap: wrap;
}

.venue-detail {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    min-width: 200px;
}

.venue-icon {
    font-size: 1.75rem;
    line-height: 1;
}

.venue-detail>div {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.venue-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.venue-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
}

.venue-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
    flex-shrink: 0;
}

.venue-btn {
    flex-shrink: 0;
    white-space: nowrap;
    font-size: 0.95rem;
    padding: 0.6rem 1.25rem;
}

.map-wrapper {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    line-height: 0;
}

.map-wrapper iframe {
    display: block;
    width: 100%;
    height: 420px;
    filter: invert(90%) hue-rotate(180deg);
}

@media (max-width: 768px) {
    .venue-info-bar {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.5rem;
    }

    .venue-divider {
        display: none;
    }

    .venue-btn {
        width: 100%;
        text-align: center;
    }

    .map-wrapper iframe {
        height: 300px;
    }
}

/* Registration Rules Section */
.rules-section {
    background: var(--bg-dark);
    position: relative;
}

.rules-section::before {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 115, 0, 0.07) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.rules-content {
    max-width: 1100px;
    margin: 0 auto;
}

.rules-panel {
    padding: 2rem 2.5rem;
}

.rules-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0;
    margin: 0;
}

.rule-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.rule-number {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 12px rgba(0, 160, 233, 0.4);
    margin-top: 0.1rem;
}

.rule-item p {
    font-size: 1.2rem;
    color: #cbd5e1;
    line-height: 1.75;
    margin: 0;
}

.rule-item strong {
    color: #fbffa2;
    font-weight: 600;
}

@media (max-width: 768px) {
    .rules-panel {
        padding: 2rem 1.5rem;
    }
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: var(--transition-slow);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}

.delay-4 {
    transition-delay: 0.4s;
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* simple mobile handling */
    }

    .hero-info-cards {
        flex-direction: column;
    }

    .hero-actions {
        flex-direction: column;
    }

    .agenda-table th,
    .agenda-table td {
        padding: 1rem;
    }

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

@media (max-width: 480px) {

    .agenda-table th,
    .agenda-table td {
        display: block;
        width: 100%;
    }

    .agenda-table tr {
        display: block;
        margin-bottom: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding-bottom: 1rem;
    }

    .agenda-table td {
        border-bottom: none;
        padding: 0.5rem;
    }

    .time-col,
    .topic-col,
    .speaker-col {
        display: none;
    }

    .time::before {
        content: '時間: ';
        color: var(--text-muted);
        font-size: 0.8rem;
    }
}