:root {
    --ufsc-red: #E63329;
    --ufsc-red-dark: #C42A22;
    --ufsc-red-deeper: #A81F17;
    --ufsc-white: #FFFFFF;
    --ufsc-cream: #FAFAFA;
    --glow-gold: #FFD76E;
    --glow-pink: #FF6B9D;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
html, body {
    overflow-x: hidden;
}
body {
    font-family: 'Noto Sans TC', 'Noto Sans JP', sans-serif;
    background: var(--ufsc-red);
    color: var(--ufsc-white);
    min-height: 100vh;
    position: relative;
}

/* ========== 浮動光球背景 ========== */
.orb-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.25;
    animation: orbFloat 20s ease-in-out infinite;
}

.orb:nth-child(1) {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #ff9a5c, transparent 70%);
    top: -10%;
    left: -10%;
    animation-duration: 22s;
}
.orb:nth-child(2) {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #ff4d6d, transparent 70%);
    bottom: -15%;
    right: -5%;
    animation-duration: 18s;
    animation-delay: -5s;
}
.orb:nth-child(3) {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, #ffd166, transparent 70%);
    top: 40%;
    left: 50%;
    animation-duration: 25s;
    animation-delay: -10s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(60px, -40px) scale(1.1); }
    50% { transform: translate(-30px, 50px) scale(0.9); }
    75% { transform: translate(40px, 20px) scale(1.05); }
}

/* ========== 浮動星星粒子 ========== */
.floating-stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.floating-star {
    position: absolute;
    opacity: 0;
    animation: floatUp linear infinite;
}

.floating-star svg {
    fill: rgba(255, 255, 255, 0.35);
    filter: drop-shadow(0 0 4px rgba(255,255,255,0.3));
}

@keyframes floatUp {
    0% {
        opacity: 0;
        transform: translateY(100vh) rotate(0deg) scale(0.5);
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(-100px) rotate(360deg) scale(1);
    }
}

/* ========== 光暈圈動畫 ========== */
.glow-rings {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 2;
}

.glow-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: expandRing 4s ease-out infinite;
}

.glow-ring:nth-child(1) { animation-delay: 0s; }
.glow-ring:nth-child(2) { animation-delay: 1s; }
.glow-ring:nth-child(3) { animation-delay: 2s; }
.glow-ring:nth-child(4) { animation-delay: 3s; }

@keyframes expandRing {
    0% {
        width: 100px;
        height: 100px;
        opacity: 0.5;
    }
    100% {
        width: 800px;
        height: 800px;
        opacity: 0;
    }
}

/* ========== 流動光線 ========== */
.light-beam {
    position: fixed;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        transparent 40%,
        rgba(255, 255, 255, 0.03) 45%,
        rgba(255, 255, 255, 0.08) 50%,
        rgba(255, 255, 255, 0.03) 55%,
        transparent 60%,
        transparent 100%
    );
    animation: sweepLight 8s ease-in-out infinite;
    pointer-events: none;
    z-index: 3;
}

@keyframes sweepLight {
    0%, 100% {
        transform: translateX(-30%) skewX(-15deg);
    }
    50% {
        transform: translateX(30%) skewX(-15deg);
    }
}

/* ========== 四角星星背景裝飾 ========== */
.star-pattern {
    position: fixed;
    top: 0px;
    right: 0;
    width: 27%;
    height: 100vh;
    overflow: hidden;
    min-width: 400px;
    pointer-events: none;
}
.star-pattern img {
    width: 100%;
    height: auto;
    margin-top: -20px;
    opacity: .15;
}

/* ========== 角落裝飾星星 ========== */
.corner-star {
    position: fixed;
    width: 30px;
    height: 30px;
    opacity: 0.5;
    z-index: 5;
}

.corner-star svg {
    width: 100%;
    height: 100%;
    fill: var(--ufsc-white);
    filter: drop-shadow(0 0 6px rgba(255,255,255,0.4));
}

.corner-star.top-left {
    top: 30px;
    left: 30px;
    animation: cornerSpin 20s linear infinite, cornerPulse 3s ease-in-out infinite;
}

.corner-star.top-right {
    top: 30px;
    right: 30px;
    animation: cornerSpin 25s linear infinite reverse, cornerPulse 3s ease-in-out infinite 0.5s;
}

.corner-star.bottom-left {
    bottom: 30px;
    left: 30px;
    animation: cornerSpin 22s linear infinite, cornerPulse 3s ease-in-out infinite 1s;
}

.corner-star.bottom-right {
    bottom: 30px;
    right: 30px;
    animation: cornerSpin 18s linear infinite reverse, cornerPulse 3s ease-in-out infinite 1.5s;
}

@keyframes cornerSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes cornerPulse {
    0%, 100% {
        opacity: 0.4;
        transform: scale(1) rotate(0deg);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.3) rotate(180deg);
    }
}

/* ========== Header ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1rem 5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(180deg, rgba(230, 51, 41, 0.9) 0%, transparent 100%);
    transition: all 0.4s ease;
}

.site-header.menu-open {
    background: rgba(160, 30, 25, 0.98);
}

.site-header.scrolled {
    background: rgba(180, 28, 22, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0,0,0,0.15);
}

.header-logo {
    display: flex;
    align-items: center;
}

.header-logo img {
    height: 55px;
    width: auto;
    transition: filter 0.3s ease;
}

.header-logo:hover img {
    filter: drop-shadow(0 0 12px rgba(255,255,255,0.5));
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-nav a {
    color: var(--ufsc-white);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    opacity: 0.9;
    transition: all 0.3s ease;
    position: relative;
    padding-bottom: 4px;
}

.site-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--ufsc-white), transparent);
    transition: all 0.4s ease;
    transform: translateX(-50%);
}

.site-nav a:hover {
    opacity: 1;
    text-shadow: 0 0 12px rgba(255,255,255,0.5);
}

.site-nav a:hover::after {
    width: 120%;
}

/* ========== 主要內容容器 ========== */
.page-content {
    position: relative;
    z-index: 10;
    padding-top: 80px;
}

/* ========== Hero Section ========== */
.hero {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 5% 2rem;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-main {
    flex: 1;
    max-width: 680px;
}

/* ========== 標語打字機效果 ========== */
.hero-tagline {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    margin-bottom: 1.8rem;
    line-height: 1.4;
    position: relative;
    overflow: hidden;
    opacity: 0;
}

.hero-tagline.revealed {
    opacity: 1;
}

.hero-tagline .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px) rotateX(-40deg);
    animation: charReveal 0.5s ease forwards;
    background: linear-gradient(135deg, #fff 0%, #ffd4a0 50%, #fff 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation-name: charReveal, charGradient;
    animation-duration: 0.5s, 3s;
    animation-timing-function: ease, ease-in-out;
    animation-fill-mode: forwards, none;
    animation-iteration-count: 1, infinite;
}

@keyframes charReveal {
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0deg);
    }
}

@keyframes charGradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-tagline .cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--glow-gold);
    margin-left: 4px;
    vertical-align: middle;
    animation: blink 0.8s step-end infinite;
    box-shadow: 0 0 8px var(--glow-gold), 0 0 20px rgba(255,215,110,0.3);
    border-radius: 1px;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ========== Hero 文字逐段淡入 ========== */
.hero-lead,
.hero-body,
.hero-closing {
    opacity: 0;
    transform: translateY(25px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-lead.visible,
.hero-body.visible,
.hero-closing.visible {
    opacity: 1;
    transform: translateY(0);
}

.hero-lead {
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    transition-delay: 0s;
}

.hero-body {
    font-size: 0.95rem;
    font-weight: 300;
    line-height: 2;
    margin-bottom: 1.5rem;
    opacity: 0;
    transition-delay: 0.15s;
}

.hero-closing {
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.8;
    padding-top: 0.8rem;
    border-top: 1px solid rgba(255,255,255,0.2);
    position: relative;
    transition-delay: 0.3s;
}

.hero-closing.visible {
    opacity: 0.95;
    text-shadow: 0 0 30px rgba(255,215,110,0.2);
}

/* ========== 強調テキスト ========== */
.highlight-red {
    color: var(--ufsc-red);
    background: rgba(255,255,255,0.92);
    padding: 0.1em 0.4em;
    border-radius: 4px;
    font-weight: 700;
    letter-spacing: 0.03em;
    box-shadow: 0 2px 12px rgba(230,51,41,0.15);
    display: inline;
    line-height: 1.8;
}

/* ========== 右側挑戰面板 ========== */
.hero-sidebar {
    width: 340px;
    flex-shrink: 0;
    opacity: 0;
    transform: translateX(40px);
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1) 0.5s;
}

.hero-sidebar.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ========== 旋轉邊框卡片 ========== */
.challenges-card {
    position: relative;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 18px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid transparent;
}

.challenges-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 19px;
    background: conic-gradient(
        from var(--card-angle, 0deg),
        transparent 0%,
        rgba(255,255,255,0.5) 10%,
        transparent 20%,
        transparent 50%,
        rgba(255,215,110,0.4) 60%,
        transparent 70%
    );
    z-index: -1;
    animation: rotateGradient 4s linear infinite;
}

.challenges-card::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 1px;
    right: 1px;
    bottom: 1px;
    background: linear-gradient(145deg, rgba(180,30,25,0.95), rgba(200,40,30,0.9));
    border-radius: 17px;
    z-index: -1;
}

@keyframes rotateGradient {
    to { --card-angle: 360deg; }
}

@property --card-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

.challenges-card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2), 0 0 40px rgba(255,255,255,0.05);
}

.challenges-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.challenges-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1.2em;
    background: linear-gradient(180deg, var(--glow-gold), var(--ufsc-white));
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(255,215,110,0.4);
}

.challenges-list {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.challenges-list li {
    font-size: 0.95rem;
    font-weight: 400;
    padding: 0.55rem 0;
    padding-left: 1.5rem;
    position: relative;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.challenges-list li.visible {
    opacity: 0.92;
    transform: translateX(0);
}

.challenges-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) scale(0);
    width: 7px;
    height: 7px;
    background: var(--glow-gold);
    border-radius: 50%;
    box-shadow: 0 0 6px rgba(255,215,110,0.5);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.challenges-list li.visible::before {
    transform: translateY(-50%) scale(1);
}

.challenges-cta-text {
    font-size: 0.95rem;
    font-weight: 500;
    padding-top: 0.8rem;
    border-top: 1px solid rgba(255,255,255,0.12);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    opacity: 0;
    transition: all 0.6s ease 0.8s;
}

.challenges-cta-text.visible {
    opacity: 1;
}

/* ========== 霓虹 CTA 按鈕 ========== */
.cta-btn {
    display: block;
    text-align: center;
    padding: 1.1rem 2rem;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    color: var(--ufsc-white);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255,255,255,0.15),
        transparent
    );
    transition: left 0.6s ease;
}

.cta-btn:hover::before {
    left: 100%;
}

.cta-btn:hover {
    border-color: var(--ufsc-white);
    box-shadow:
        0 0 15px rgba(255,255,255,0.2),
        0 0 40px rgba(255,255,255,0.1),
        inset 0 0 15px rgba(255,255,255,0.05);
    transform: translateY(-3px);
    text-shadow: 0 0 10px rgba(255,255,255,0.5);
    letter-spacing: 0.18em;
}

.cta-btn:active {
    transform: translateY(-1px);
    box-shadow:
        0 0 10px rgba(255,255,255,0.15),
        0 0 25px rgba(255,255,255,0.07);
}

/* CTA 發散光暈 */
.cta-btn-wrapper {
    position: relative;
}

.cta-pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    transform: translate(-50%, -50%);
    border-radius: 14px;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.25) 0%, rgba(255,215,110,0.12) 40%, transparent 70%);
    animation: ctaGlow 3s ease-in-out infinite;
    pointer-events: none;
    filter: blur(18px);
}

@keyframes ctaGlow {
    0%, 100% {
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.35);
    }
}

.cta-btn-sub {
    display: block;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 300;
    opacity: 0.55;
    margin-top: 0.6rem;
}

/* ========== 合作夥伴 Logo ========== */
.partners-section {
    padding: 3rem 5% 4rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 1200px;
    margin: 0 auto;
}

.partners-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.partners-section-title {
    text-align: center;
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    opacity: 0.5;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.partners-category {
    margin-bottom: 1.8rem;
}

.partners-category-label {
    text-align: center;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    opacity: 0.45;
    margin-bottom: 0.8rem;
}

.partners-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.partner-logo {
    padding: 0.6rem 1.4rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 400;
    white-space: nowrap;
    opacity: 0.7;
    letter-spacing: 0.04em;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 50px;
    color: var(--ufsc-white);
    text-decoration: none;
}

a.partner-logo:link,
a.partner-logo:visited,
a.partner-logo:hover,
a.partner-logo:active {
    color: var(--ufsc-white);
    text-decoration: none;
}

.partner-logo img {
    height: 32px;
    width: auto;
    max-width: 100px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0.85;
    transition: all 0.3s ease;
}

.partner-logo:hover img {
    opacity: 1;
    filter: brightness(0) invert(1) drop-shadow(0 0 4px rgba(255,255,255,0.3));
}

.partner-logo:hover {
    opacity: 1;
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.25);
    box-shadow: 0 0 20px rgba(255,255,255,0.06);
    transform: scale(1.05);
}

.partner-logo.sponsor {
    background: rgba(255,215,110,0.08);
    border-color: rgba(255,215,110,0.2);
}

.partner-logo.sponsor:hover {
    background: rgba(255,215,110,0.15);
    border-color: rgba(255,215,110,0.4);
    box-shadow: 0 0 20px rgba(255,215,110,0.1);
}

.sponsor-center {
    display: flex;
    justify-content: center;
    padding: 0.3rem 0;
}

/* ========== 橋樑圖 ========== */
.bridge-section {
    padding: 2rem 5% 2rem;
    opacity: 0;
    transform: translateY(40px);
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.bridge-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.bridge-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    max-width: 750px;
    margin: 0 auto;
}

.bridge-node {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    padding: 1.5rem 1.8rem;
    text-align: center;
    min-width: 200px;
    transition: all 0.4s ease;
    position: relative;
}

.bridge-node:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15), 0 0 20px rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.35);
}

.bridge-node-label {
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.6;
}

.bridge-node.center-node {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.3);
    padding: 1.8rem 2.2rem;
    animation: centerNodeGlow 3s ease-in-out infinite;
}

@keyframes centerNodeGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(255,255,255,0.05);
    }
    50% {
        box-shadow: 0 0 40px rgba(255,255,255,0.12), 0 0 80px rgba(255,215,110,0.06);
    }
}

.bridge-node.center-node .bridge-node-label {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    background: linear-gradient(135deg, #fff, #ffd4a0, #fff);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: charGradient 3s ease-in-out infinite;
}

/* ========== 流動箭頭 ========== */
.bridge-arrow {
    display: flex;
    align-items: center;
    padding: 0 0.8rem;
}

.bridge-arrow svg {
    width: 70px;
    height: 28px;
    fill: none;
    stroke: var(--ufsc-white);
    stroke-width: 2;
    filter: drop-shadow(0 0 4px rgba(255,255,255,0.2));
}

.bridge-arrow .flow-line {
    stroke-dasharray: 8 4;
    animation: flowDash 1.5s linear infinite;
}

@keyframes flowDash {
    to {
        stroke-dashoffset: -24;
    }
}

.bridge-arrow .arrow-head {
    animation: arrowPulse 1.5s ease-in-out infinite;
}

@keyframes arrowPulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* ========== 公司資訊 Footer ========== */
.site-footer {
    position: relative;
    z-index: 10;
    background: rgba(0,0,0,0.2);
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 3.5rem 5% 2rem;
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.footer-logo img {
    height: 55px;
    width: auto;
    opacity: 0.85;
    transition: opacity 0.3s ease;
}

.footer-logo:hover img {
    opacity: 1;
    filter: drop-shadow(0 0 10px rgba(255,255,255,0.3));
}

.footer-company-name {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.9;
    letter-spacing: 0.05em;
}

.footer-description {
    font-size: 0.82rem;
    font-weight: 300;
    line-height: 1.8;
    opacity: 0.7;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.footer-info-title {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-info-title::before {
    content: '';
    width: 3px;
    height: 1em;
    background: linear-gradient(180deg, var(--glow-gold), transparent);
    border-radius: 2px;
}

.footer-info-row {
    display: flex;
    padding: 0.5rem 0;
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

.footer-info-label {
    width: 120px;
    flex-shrink: 0;
    font-weight: 500;
    opacity: 0.65;
}

.footer-info-value {
    font-weight: 300;
    opacity: 0.85;
    line-height: 1.6;
}

.footer-info-value a {
    color: var(--glow-gold);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.footer-info-value a:hover {
    border-bottom-color: var(--glow-gold);
    text-shadow: 0 0 10px rgba(255,215,110,0.3);
}

.footer-bottom {
    max-width: 1000px;
    margin: 2rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    opacity: 0.7;
    font-weight: 300;
    line-height: 1.6;
}

.footer-group-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-group-link a {
    color: var(--ufsc-white);
    text-decoration: none;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.footer-group-link a:hover {
    opacity: 1;
    text-shadow: 0 0 8px rgba(255,255,255,0.3);
}

@media (max-width: 768px) {
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}

/* ========== 底部裝飾 ========== */
.footer-accent {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255,215,110,0.3) 20%,
        rgba(255,255,255,0.5) 50%,
        rgba(255,215,110,0.3) 80%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: footerFlow 3s ease-in-out infinite;
    z-index: 100;
}

@keyframes footerFlow {
    0% {
        background-position: 100% 0;
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
    100% {
        background-position: -100% 0;
        opacity: 0.6;
    }
}

/* ========== 基本動畫 ========== */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ========== 滑鼠追蹤光暈 ========== */
.cursor-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 4;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
}

.cursor-glow.active {
    opacity: 1;
}

/* ========== 漢堡選單按鈕 ========== */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    cursor: pointer;
    z-index: 110;
    background: none;
    border: none;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--ufsc-white);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========== 響應式設計 ========== */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        align-items: center;
        padding: 2rem 4% 2rem;
        min-height: auto;
    }

    .hero-main {
        max-width: 100%;
    }

    .hero-sidebar {
        width: 100%;
        max-width: 500px;
    }

    .bridge-node {
        min-width: 120px;
        padding: 1.2rem 1.2rem;
    }

    .bridge-node.center-node {
        padding: 1.4rem 1.6rem;
    }
}

@media (max-width: 768px) {
    .site-header {
        padding: 0.8rem 1.5rem;
        position: relative;
    }

    .header-logo img {
        height: 36px;
    }

    .nav-toggle {
        display: flex;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        gap: 0;
        padding: 0.5rem 1.5rem 1rem;
        background: rgba(160, 30, 25, 0.98);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        box-shadow: 0 12px 40px rgba(0,0,0,0.3);
    }

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

    .site-nav a {
        font-size: 0.95rem;
        padding: 0.8rem 0;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        opacity: 0.85;
    }

    .site-nav a:last-child {
        border-bottom: none;
    }

    .site-nav a::after {
        display: none;
    }

    .hero {
        padding: 1.5rem 5% 1.5rem;
    }

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

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

    .hero-body {
        font-size: 0.9rem;
    }

    .highlight-red {
        font-size: 0.85rem;
        padding: 0.05em 0.3em;
    }

    .challenges-title {
        font-size: 0.95rem;
    }

    .challenges-list li {
        font-size: 0.88rem;
    }

    .bridge-diagram {
        flex-direction: column;
        gap: 0;
    }

    .bridge-arrow {
        transform: rotate(90deg);
        padding: 0.5rem 0;
    }

    .bridge-node {
        min-width: 200px;
    }

    .bridge-node-label {
        font-size: 1.1rem;
    }

    .bridge-node.center-node .bridge-node-label {
        font-size: 1.5rem;
    }

    .partners-section {
        padding: 2rem 4% 3rem;
    }

    .partners-grid {
        gap: 0.8rem;
    }

    .partner-logo {
        padding: 0.5rem 1rem;
        font-size: 0.78rem;
        min-height: 42px;
    }

    .partner-logo img {
        height: 24px;
        max-width: 70px;
    }

    .footer-inner {
        padding: 0 1rem;
    }

    .footer-info-label {
        width: 100px;
        font-size: 0.8rem;
    }

    .footer-info-value {
        font-size: 0.8rem;
    }

    .glow-ring {
        display: none;
    }

    .corner-star {
        width: 20px;
        height: 20px;
    }

    .star-pattern {
        width: 100%;
        min-width: unset;
        opacity: 0.6;
    }

    .cursor-glow {
        display: none;
    }

    .orb:nth-child(3) {
        display: none;
    }
}

@media (max-width: 480px) {
    .site-header {
        padding: 0.6rem 1rem;
    }

    .header-logo img {
        height: 30px;
    }

    .hero {
        padding: 1rem 8% 1rem;
    }

    .hero-tagline {
        font-size: 2.2rem;
    }

    .hero-lead {
        font-size: 0.92rem;
    }

    .hero-body {
        font-size: 0.85rem;
        line-height: 1.8;
    }

    .hero-closing {
        font-size: 0.92rem;
    }

    .highlight-red {
        font-size: 0.8rem;
        padding: 0.05em 0.25em;
        display: inline;
    }

    .hero-sidebar {
        max-width: 100%;
    }

    .challenges-card {
        padding: 1.5rem;
    }

    .challenges-list li {
        font-size: 0.82rem;
        padding: 0.45rem 0;
        padding-left: 1.2rem;
    }

    .cta-btn {
        padding: 0.9rem 1.5rem;
        font-size: 0.95rem;
    }

    .bridge-node {
        min-width: 180px;
        padding: 1rem 1.2rem;
    }

    .bridge-node-label {
        font-size: 1rem;
    }

    .bridge-node.center-node .bridge-node-label {
        font-size: 1.3rem;
    }

    .bridge-arrow svg {
        width: 40px;
    }

    .partner-logo {
        padding: 0.4rem 0.8rem;
        font-size: 0.72rem;
        min-height: 36px;
    }

    .partner-logo img {
        height: 20px;
        max-width: 56px;
    }

    .footer-info-label {
        width: 85px;
        font-size: 0.75rem;
    }

    .footer-info-value {
        font-size: 0.75rem;
    }

    .footer-company-name {
        font-size: 1.1rem;
    }

    .footer-description {
        font-size: 0.9rem;
    }
}

/* ========== 減少動態效果（無障礙） ========== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .hero-tagline .char {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ========== 加載動畫 ========== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--ufsc-red);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loader.hidden {
    opacity: 0;
    visibility: hidden;
}
.loader-star {
    width: 60px;
    height: 60px;
    animation: rotate 2s linear infinite;
}
.loader-star svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 15px rgba(255,255,255,0.4));
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.loader-ring {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid rgba(255,255,255,0.1);
    border-top-color: rgba(255,255,255,0.5);
    border-radius: 50%;
    animation: rotate 1.5s linear infinite;
}